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Abstract

Background

Cancer is one of the most serious diseases worldwide that threatens human health and leads to death. Chemotherapy is the main clinical method to treat tumors, but, despite the development of new chemotherapeutic drugs, the multidrug resistance (MDR) of cancer cells to conventional chemotherapeutic drugs remains a major cause of failure in cancer prevention and treatment. Therefore, overcoming this resistance has become a major challenge in cancer prevention and treatment.

Method

With the in-depth study of traditional Chinese medicines (TCMs) for the treatment of tumors, many such medicines have been found that can reverse MDR and enhance the sensitivity of chemotherapy. ZJW is a famous traditional medicine formula from China, recorded first in an ancient medicine book named Danxi Xinfa. It is composed of Huanglian and Wuzhuyu in a ratio of 6:1 by mass.

Conclusion

ZJW can inhibit proliferation, induce apoptosis, inhibit invasion and metastasis, and reverse MDR of tumor cells through multiple pathways and multiple targets. In this paper, we briefly review recent research on ZJW and its main components, evodiamine and berberine, in the anti-tumor mechanism and reversal of multidrug resistance.

Keywords

evodiamine berberine ZJW antitumor multidrug resistance

According to the International Agency for Research on Cancer (IARC), 17 million cases of malignant tumors and 9.5 million-related cases were reported worldwide in 2018,¹ suggesting that cancer has critically endangered people's lives and health. At present, the prevention and treatment methods for cancer in clinical practice typically include surgery, radiotherapy, chemotherapy, and biological therapy. Among these, chemotherapy significantly improves the survival of these patients in clinical settings.^2,3 However, multidrug resistance (MDR) of tumor cells to chemotherapeutic agents has emerged as the main cause of tumor treatment failure.^4–6 Currently, most Western drugs reverse drug resistance of tumor cells through a single underlying mechanism, and some co-existing mechanisms result in a poor effect of single-target drugs, leading to more adverse reactions. Therefore, there are some limitations in their clinical application. Chinese traditional herbal medicines have the advantages of high potency, low toxicity, multiple binding sites, high specificity, and reversal of MDR of tumor cells through multiple mechanisms simultaneously, attracting strong attention from scientists.^7–9 Numerous studies have shown that many herbal medicines can reverse tumor MDR.^10,11

ZJW is a traditional medicine formula from China, recorded first in an ancient medicine book, Danxi Xinfa. It is composed of Huang Lian and Wuzhuyu in a ratio of 6:1 by mass and is mainly used in treating “liver fire in the stomach.”¹² Modern studies have confirmed that ZJW has a wide range of pharmacological effects, including the treatment of gastric ulcers, hyperlipidemia, and diabetes, as well as antibacterial and anti-inflammatory effects. ZJW can also be used in the treatment of tumors because it can inhibit proliferation, invasion, and metastasis of cancer cells and induce apoptosis, as well as reverse MDR.^13,14

Wuzhuyu is the dried, near-ripe fruit of Cornus officinalis, ie, Shihu or Cornus officinalis, belonging to the family Rutaceae. It has the properties of dispersing cold and relieving pain, lowering rebelliousness, and stopping vomiting. It is commonly used in the treatment of syncopal headaches, abdominal pain from cold diseases, vomiting, and acid swallowing,¹⁵ and is classified as a member of the liver, spleen, and stomach meridians.¹⁶ The main active ingredient in Wuzhuyu is evodiamine (EVO). A pharmacological study showed significant inhibitory effects of EVO on the proliferation of several cancer cells, including those of the lung, colon, breast, ovaries, gastric cancer (GC), and leukemia.^17,18 Several reviews on the mechanism of the antitumor effects of EVO have been published.^19–21 EVO mainly acts on the PI3K/Akt/Caspase, MAPK, and Fas-L/NF-κB signaling pathways to arrest the tumor cell cycle in the G2/M phase and induce apoptosis,²² along with decreasing the level of polymeric microtubule proteins in cells and hindering the apoptosis of tumor cells.²³ The drug prevents the mitosis of tumor cells by reducing the level of polymeric microtubule proteins in cells and impeding the formation of spindles. EVO can induce apoptosis by upregulating the phosphorylation of Bcl-2 and enhancing the expression of Bax and aMase proteins.²⁴ Recent studies have shown that EVO in combination with other chemotherapeutic agents (eg, cisplatin, oxaliplatin, erlotinib, adriamycin, paclitaxel, gemcitabine, etc) has the potential to increase chemotherapeutic sensitivity and reverse drug resistance.

Berberine (BBR), an isoquinoline alkaloid isolated from the Chinese herb, Huanglian, and other Berberis plants, has a wide range of pharmacological properties, including anti-inflammatory,²⁵ anti-infection, anti-tumor,²⁶ and anti-arrhythmic functions, along with the regulation of blood lipid and glucose levels.^27,28 Numerous experiments have shown that BBR has significant antitumor effects in liver cancer, breast cancer, gastric cancer, non-small cell lung cancer, ovarian cancer, melanoma, and other tumors.^29,30 BBR can promote drug-resistant tumor cell death by promoting cycle arrest of resistant tumor cells, inhibiting migration and invasion, suppressing tumor cell proliferation, promoting sensitivity to chemotherapy or radiotherapy, and promoting autophagy and apoptosis^31–34 in an attempt to solve the problem of drug resistance in tumor cells after long-term chemotherapy or radiotherapy (Figure 1).

Figure 1.
Chemical structural formula (A) Evodiamine (B) Berberine.

Gastric Cancer (GC)

Gastrocolic cancer is a common tumor characterized by high morbidity and mortality.³⁵ To date, surgery remains the only treatment option. However, due to the manifestations in advanced stages, GC is detected in most patients with advanced disease when the tumor cells usually migrate, leading to an extremely low 5-year survival rate.³⁶ Chemotherapy is the treatment of choice for advanced GC.

Cisplatin (DDP) is a commonly used agent for the treatment of GC.³⁷ The use of DDP-based adjuvant chemotherapy was approved to increase survival after gastrectomy. Unfortunately, intrinsic or acquired drug resistance severely limits the therapeutic efficacy of cisplatin.³⁸ Therefore, developing effective strategies to improve the sensitivity of cisplatin in GC treatment is necessitated. Q.F. Tang et al.³⁹ found overexpression of phosphorylated cofilin-1 (p-cofilin-1) in the DDP-resistant human GC cell line, SGC7901/DDP relative to SGC-7901 cells and DDP could induce p-cofilin-1 dephosphorylation in the parental cell line, but not in DDP-resistant cell lines. However, the ZJW-induced dephosphorylation of cofilin-1 in SGC7901/DDP cells promoted the translocation of cofilin-1 from the cytoplasm to the mitochondria, which in turn induced the mitochondrial apoptotic pathway. Moreover, the ZJW extract could increase the sensitivity of SGC-7901/DDP cells to DDP by its concentration-dependent increase in the cytoplasm. It also enhanced the pro-apoptotic effect of cisplatin by promoting JNK activation and Bcl-2 expression, inhibiting Bax expression and subsequently increasing the release of cytochrome C from mitochondria to the cytoplasm, thus ultimately activating the cysteine cascade response.⁴⁰ Treatment with PP1 and PP2A inhibitors or cofilin-1-specific siRNA transfection reversed the resistance developed by cells toward DDP. Sun et al.⁴¹ found that when DDP was combined with ZJW, the PI3K/Akt pathway mediated by ROCK1/PTEN significantly enhanced PP1 and PP2A expression and promoted p-cofilin-1 dephosphorylation and cofilin-1-mediated mitochondrial potential, in turn enhancing the chemosensitivity of DDP-resistant cells. Sun et al.⁴² investigated the inhibitory effect of ZJW on the proliferation and glycolysis of GC-resistant cells, SGC-7901/DDP. The cell survival rate in each concentration group of the ZJW exposure was reduced significantly at all time points of the assay in a time- and concentration-dependent manner compared to the control group. After 24 h of drug intervention, the glucose uptake rate and lactate content of cells in each ZJW concentration group reduced significantly compared to the control group, suggesting the ZJW could significantly inhibit SGC-7901/DDP glycolysis. It was concluded that ZJW could significantly inhibit the proliferation of the GC-resistant cells, SGC-7901/DDP, and this process may be related to the inhibition of glycolysis, with c-myc, hypoxia-inducible factor-1α (HIF-1α), GLUT1, LDHA, and HK II as its targets of action. Subsequently, the effects of ZJW on SGC-7901/DDP resistance and related protein expressions were specifically investigated. Either EVO or BBR alone and their combination significantly enhanced the sensitivity of SCC-7901/DDP cells to DDP in vitro, and these effects were associated with elevated expressions of apoptotic proteins, caspase-3, and caspase-9, along with the downregulation of resistance-related proteins, P-gp and MRP.³¹

Recent epidemiological findings suggest a lower risk of GC in diabetic patients with long-term metformin use.⁴³ Typically, GC development is related to energy metabolism, and blocking these metabolic alterations is an emerging therapeutic approach for cancer. Some metabolic enzymes involved in glycolytic pathways are considered new therapeutic targets.⁴⁴ BBR regulates lipid metabolism and glucose homeostasis by modulating the expression of the hepatocyte nuclear factor-4α (HNF4α) in metabolic diseases like hepatic metabolism disorders.⁴⁵ Hu et al.⁴⁶ found that BBR not only downregulated HNF4α and upregulated p-AMPK levels in the treatment of GC but also induced cell cycle G0/1 phase arrest by downregulating cyclin D1 expression, thereby inhibiting the proliferation ability of tumor cells. BBR attenuated tumor cell migration and invasion by downregulating matrix metalloproteinase-3 (MMP-3). Li et al.⁴⁷ found that BBR induced fatty acid accumulation and inhibited the expression of fatty acid-binding proteins (FABPs) in the human GC cell line, MGC803, in turn inducing apoptosis in GC cells. In addition to the induction of apoptosis, stimulating cancer cell autophagy is also effective in the treatment of cancer. Cellular autophagy is a major self-degradation process characterized by the formation of double-membrane autophagosomes.⁴⁸ Zhang et al.⁴⁹ found that BBR induced autophagy in GC BGC-823 cells by inhibiting the MAPK/mTOR/p70S6K and Akt pathways, thereby inhibiting the growth of human GC cells in vivo and in vitro. Recent studies suggest that BBR may also affect cancer-related pathways by regulating the expression of cyclic RNAs and their corresponding target genes in GC cells,⁵⁰ thereby inhibiting cancer cell growth.

GC stem cells (GCSCs) promote tumorigenesis, aggressive growth, recurrence, metastasis, and drug resistance, and thus new therapeutic strategies targeting GCSCs are urgently needed in clinical settings. Cai et al.⁵¹ demonstrated that the levels of β-catenin, c-myc, cyclin D1, and axin 2 expression in GCSCs were essential for the self-renewal of cancer stem-like cells in human GC by measuring the expression of proteins in the Wnt/β-catenin pathway, which is essential for the self-renewal of cancer stem-like cells in human GC. Wen et al.⁵² examined the effect of EVO on the self-renewal of GCSCs by altering the sphere-forming ability of GC cells, inducing pluripotent stem cell factor expression, epithelial-mesenchymal transition (EMT) factor expression, and oxaliplatin resistance. EVO inhibited the proliferation of GCSCs, promoted Bax:B-cell lymphoma 2, and altered the expression of caspase-3 activity in GCSCs. EVO inhibited the sphere-forming ability of GC cells and reversed the resistance of GCCS to oxaliplatin by decreasing the expressions of Sox2, KLF4, Bmi-1, Oct4, and other proteins. EVO decreased the expression of Slug, Twist, Zeb1, and vimentin, suggesting an inhibitory effect on EMT. The expression of β-catenin, c-Myc, and cyclin D1 reduced significantly in EVO-treated GC cell spheres. EVO inhibited EMT by inhibiting the Wnt/ β-catenin signaling pathway, which in turn suppressed the proliferation and stem cell properties of GCSCs (Table 1).

Table 1.
Effects of ZJW, EVO, and BBR on gastric cancer.

Chinese medicine Cell lines Mechanism References

ZJW SGC-7901
SGC-7901/DDP
BGC823/DDP Induction of the mitochondrial apoptotic pathway； promotes JNK activation and Bcl-2 expression, inhibits Bax expression, increases cytochrome C release from mitochondria to the cytoplasm, and activates the cysteine cade response, thereby enhancing the pro-apoptotic effects of cisplatin. 40

SGC-7901
SGC-7901/DDP The PI3 K/Akt pathway significantly enhanced the expression of PP1 and PP2A and promoted p-cofilin-1 dephosphorylation and cofilin-1 mitochondrial potential, thereby enhancing the chemosensitivity of DDP-resistant cells. 41

SGC-7901
SGC-7901/DDP It may be related to the inhibition of glycolysis, and C-myc, HIF-1α, GLUT1, LDHA, and HK II may be its targets, thus inhibiting the proliferation of drug-resistant cells in gastric cancer. 42

SGC-7901
SGC-7901/DDP Elevated expression of caspase-3 and caspase-9, drug resistance-associated protein P-gp and MRP, and enhanced sensitivity of SCC-7901/DDP cells to DDP. 31

BBR SGC-7901
AGS Down-regulation of HNF4α, up-regulation of p-AMPK, and down-regulation of cyclin D1 expression induced cell cycle G0/1 phase arrest and inhibited tumor cell proliferation; meanwhile, down-regulation of MMP-3 attenuated the ability of migration and invasion. 46

MGC-803 Induction of MGC803 fatty acid accumulation, inhibition of FABPs and PPARα protein expression, and fatty acid accumulation induced apoptosis. 47

BGC-823 Inhibition of MAPK/mTOR/p70S6 K and Akt induces cytostatic autophagy to inhibit the growth of human gastric cancer cells in vitro and in vivo. 49

EVO SGC-7901
AGS It inhibits the Wnt/β-catenin signaling pathway, thereby suppressing the proliferation and stem cell properties of GCSCs and inhibiting EMT. 52

Non-Small Cell Lung Cancer (NSCLC)

Lung cancer is a common malignancy with a high incidence worldwide and is the leading cause of cancer death in the United States. In recent years, the incidence of lung cancer in China has been on an annual rise. According to its pathological type, lung cancer can be divided into small cell lung cancer (SCLC) and NSCLC, with the latter accounting for more than 80% of all lung cancer patients.⁵³

Zheng et al.⁵⁴ found that BBR inhibited the growth and induced apoptosis of NSCLC cells through a p38α MAPK-mediated increase in protein levels of p53 and the transcription factor, FOXO3a. Phosphatidylinositol-dependent kinase 1 (PDPK1) is a proximal signaling molecule of phosphatidylinositol 3 kinase (PI3-K) among the AGC kinases, and the activation of PDPK1 promotes cancer cell metabolism and enhances their metastatic potential.⁵⁵ DNA methyltransferase 1 (DNMT1) can attenuate tumor suppressor gene activity by initiating DNA hypermethylation.⁵⁶ Zheng et al.⁵⁷ further showed that BBR reduced tumor cell migration and invasion by inhibiting the protein expression of transcription factors, SP1 and PDPK1. BBR also blocked the cell cycle by inhibiting DNMT1 expression; the interaction between PDPK1 and SP1 could enhance the DNMT1 inhibitory activity of BBR. Systemic diseases often share common features, including high expression of sterol regulatory element-binding protein 1 (SREBP1) and strong lipogenic activity in tumor cells from patients with gefitinib-resistant NSCLC (G-R NSCLC) and synovial fibroblasts (RASFs) from patients with rheumatoid arthritis. Fan et al.⁵⁸ found that BBR regulated SREBP1 through the ROS/AMPK pathway, in turn regulating SREBP1 and selectively inhibiting the growth of G-R NSCLC cells and RASFs, further suppressing NSCLC proliferation. In terms of cellular pathways, Li et al.⁵⁹ found that BBR could inhibit NSCLC cell proliferation and promote tumor cell apoptosis by downregulating MMP-2 expression, thus reducing tumor cell invasion, decreasing the Blc-2/Bax ratio and inhibiting the Jak2/VEGF/NF-κB/AP-1 signaling pathway. Chen et al.⁶⁰ found that BBR could also induce apoptosis in NSCLC cells by upregulating miR-19a expression and downregulating transcription factors, in turn activating the MAPK signaling pathway. BBR could inhibit the growth of tumor cells in multiple ways during the anti-NSCLC cellular process.

NOTCH3 signaling is mainly activated in NSCLC and is considered a therapeutic target. Inhibition of NOTCH3 can suppress cell proliferation and induce apoptosis.²⁴ Su et al. evaluated the role of NOTCH3 signaling on tumor cells using EVO against a mouse lung cancer model and in two NSCLC cell lines, A549 and H1299.⁶¹ EVO effectively reduced the size and number of tumors in mice and inhibited NOTCH3 expression in tumors. These findings provided new insights into the anti-NSCLC effects of EVO and confirmed its potential role in lung cancer prevention and treatment. Li et al.⁶² assessed the reversal of MDR in NSCLC cells in vitro using EVO and its possible mechanism of action. EVO could effectively reverse cisplatin resistance in lung cancer-resistant strain A549/DDP cells and induce cellular apoptosis. Simultaneously, when EVO was combined with cisplatin, EVO improved the chemosensitivity toward cisplatin, inhibited the mRNA and protein expressions of NF-κB subtype p65 (NF-κB p65), and down-regulated the expression of MDR1 in A549/DDP cells, providing a theoretical basis for the reversal of drug resistance. Erlotinib, an oral epidermal growth factor receptor tyrosine kinase inhibitor (EGFR-TKI), is effective in NSCLC patients carrying known drug-sensitizing EGFR mutations.^63,64 but those with wild-type EGFR show resistance.⁶⁵ Several studies have confirmed the synergistic effects of erlotinib in combination with standard chemotherapy in patients with NSCLC carrying wild-type EGFR.^66–68 Li et al.⁶⁹ found that EVO induced anti-proliferation and apoptosis in four wild-type EGFR NSCLC cell lines (A549, NCI-H460, NCI-H1299, and NCI-H1650). The combination of EVO with erlotinib successfully inhibited the proliferation and survival of wild-type EGFR NSCLC cells. Mechanistic studies showed that the expression of PARP and caspase-3 increased significantly in wild-type EGFR-NSCLC cells after the combination treatment of EVO with erlotinib, and the PI3K-AKT-mTOR signaling pathway was blocked, as evidenced by the simultaneous decrease in the levels of p-4E-BP-1 (Ser-65), p-p70S6K1 (Ser-371) and p70S6K1. Thus, the combination treatment of EVO and erlotinib synergistically exerted anti-cancer effects by blocking the PI3K-AKT-mTOR pathway (Table 2).

Table 2.
Effects of EVO and BBR on non-small cell lung cancer.

Chinese medicine Cell lines Mechanisms References

BBR A549 Inhibition of NSCLC cell growth and induction of apoptosis through p38α MAPK-mediated increase of p53 and transcription factor FOXO3a protein. 54

A549, H1975 Inhibiting the protein expression of transcription factors SP1 and PDPK1 reduces the migration and invasion of tumor cells. In addition, BBR also blocks the cell cycle by inhibiting DNMT1 expression. 57

H1975, H1650
H1819, HCC827
A549, H1299
BEAS-2B Regulation of SREBP1 through the ROS/AMPK pathway selectively inhibited the growth of G-R NSCLC cells and synovial fibroblasts, which in turn inhibited NSCLC proliferation. 58

A549 BBR inhibits cell proliferation and promotes apoptosis through inhibition of MMP-2, Bcl-2/Bax, and Jak2/VEGF/NF-κB/AP-1 signaling pathways. 59

A549,PC-9 Regulation of miR-19a and TF expression through the miR19a/TF/MAPK signaling pathway inhibits NSCLC cell growth and promotes apoptosis. 60

EVO A549,H1299 Activation of DNMT s-induced NOTCH3 methylation effectively inhibits NOTCH3 signaling and thus exerts anti-lung cancer effects. 61

A549,A549/DDP Promotes apoptosis and inhibits cell proliferation by affecting the NF-κB signaling pathway. 62

A549, NCI-H460
NCI-H1299, NCI-H1650 Mcl-1 downregulation mediated by mTOR/s6k 1 in turn enhances erlotinib-induced apoptosis in human non-small cell lung cancer cells. 69

Colon Cancer

A high-fat diet is one of the main risk factors for disrupting the balance of intestinal flora, eventually inducing colorectal cancer (CRC). In the case of CRC patients, the main cause of death is the invasion and metastasis of tumor cells.⁷⁰

In a recent study, Wen et al.⁷¹ in an ex vivo experiment found that ZJW effectively inhibited the proliferation and telomerase activity of HT29 cells, thus hindering the development and progression of early cancer. Xu et al.⁷² found that ZJW significantly inhibited the proliferation of HCT-116 cells in a dose-dependent manner. Compared to the blank group, high doses of ZJW resulted in the upregulation of Bax and Bak proteins and downregulation of Bcl-2 and Bcl-xL proteins, along with enhanced caspase-3 and caspase-9 protease activities, indicating that ZJW inhibited tumor cell proliferation and apoptosis through the activation of the mitochondrial pathway. In HCT116/L-OHP cells, Sui et al.¹⁰ detected significant enhancement of phosphorylated AKT and NF-κB activity with upregulation of P-gp. The levels of phosphorylated AKT and NF-κB reduced significantly in HCT116/L-OHP after ZJW intervention. However, the inhibition of P-gp expression, AKT phosphorylation, and the NF-κB pathway by ZJW was attenuated after treatment with PI3K/Akt activator in these cells. Thus, ZJW exerted an inhibitory effect on the expression of P-gp by inhibiting the PI3K/Akt/NF-κB pathway and down-regulating the protein expression of ABCB1/P-gp. ZJW could reduce tumor volume and induce apoptosis in combination with chemotherapeutic drugs. Studies on MDR cell lines were conducted and the effects of ZJW on the protein expressions of ABCB1/P-gp, ABCC-1/2, ABCG2/BCRP, and LRP were examined. ABCB1/P-gp, ABCC-2, and LRP were substantially upregulated in HCT116/L-OHP cells compared to HCT116 cells. Further analysis showed that the reversal of MDR by ZJW was accompanied by the down-regulation of P-gp and was dependent on ABCB1/P-gp inhibition.

Ruan et al.⁷³ showed that BBR could bind to 9-cis-retinoic acid (9-cis-RA) and synergistically activate retinoid X receptor α (RXR-α) to inhibit c-Cbl-mediated degradation of the β-catenin signaling pathway, thereby suppressing colon cancer proliferation. Excessive glucose uptake and glycolytic metabolism are a hallmark of cancer. Mao et al.⁷⁴ found that BBR inhibited excessive glucose metabolism in colon cancer cells by suppressing mTOR-dependent HIF-1α protein synthesis, thereby attenuating cancer cell proliferation. Based on this, the relationship between colon cancer cell proliferation and adipogenesis was investigated. Liu et al.⁷⁵ found that BBR inhibited cell proliferation by inducing G0/G1 phase cell cycle arrest and the Wnt/β-catenin pathway in colon cancer cells, while also suppressing sterol regulatory element-binding protein-1 (SREBP-1) activation and SREBP cleavage. BBR can inhibit tumor growth in colon cancer in part by targeting the SCAP/SREBP-1 pathway, leading to the downregulation of lipogenic enzymes and resulting in the inhibition of lipid synthesis along with the suppression of colon cancer xenograft growth and adipogenesis. Stress markers, including glucose-regulated protein 78 (GRP78) are induced by ER stress.⁷⁶ Gong et al.⁷⁷ found that BBR could inhibit proliferation and migration and induce apoptosis in SW480 colon cancer cells by downregulating GRP78 expression, hinting at GRP78 as a potential target protein for cancer therapy.

EVO can inhibit apoptosis, migration, and invasion of cancer cells and shows a good anti-colorectal cancer effect. Zhou et al.⁷⁸ investigated the effect of EVO on CRC cell metastasis in vitro and in vivo and found that it significantly inhibited migration and invasion of HT-29 and HCT-116 CRC cells and reduced tumor cell metastasis. The mechanism may be related to the reduction of acyl-NF-κB p65 levels. EVO inhibited tumor microangiogenesis by downregulating vascular endothelial growth factor (VEGF) expression,⁷⁹ making the treatment of CRC with EVO a highly effective multifunctional therapeutic strategy. Sui et al.⁸⁰ examined the effect of EVO on drug resistance in CRC along with the underlying molecular mechanisms and therapeutic targets. EVO significantly counteracted resistance and promoted chemotherapeutic drug-induced apoptosis against oxaliplatin-resistant HCT-116/L-OHP cells in a time- and dose-dependent manner. EVO inhibited the growth of CRC xenografted tumors and downregulated p-NF-κB levels in vivo. This study provided the first direct evidence for attenuating MDR by EVO in CRC by blocking the p-NF-κB signaling pathway (Table 3).

Table 3.
Effects of ZJW, EVO, and BBR on colon cancer.

Chinese medicine Cell lines Mechanisms References

ZJW SMMC-7721,BEL-7402 BEL-7404,HepG-2 A549,NCI-H446,NCI-H460,HCT-116 The Bax and Bak proteins were upregulated, Bcl-2 and Bcl-xL proteins were downregulated, while Caspase-3 and Caspase-9 protease activities were upregulated, indicating that the ZJW inhibits tumor proliferation and thus apoptosis by activating the mitochondrial pathway. 72

HCT-116/L-OHP
SGC-7901/DDP Downregulation of ABCB1/P-gp protein expression by inhibiting the PI3 K/Akt/NF-κB pathway exerts a repressive effect on the expression of P-gp 10

BBR HCT-116
KM12 By inhibiting excessive glucose metabolism in colon cancer cells by inhibiting mTOR-dependent HIF-1α protein synthesis, BBR suppressed cancer cell proliferation. 74

DLD-1
Caco-2 Cell proliferation was inhibited by inducing G0/G1 phase cell cycle arrest and Wnt/β-catenin pathway in colon cancer cells, while BBR inhibited SREBP-1 activation and SREBP cleavage-activating protein (SCAP) expression, leading to inhibition of lipid synthesis and suppression of colon cancer xenograft growth. 75

SW480
HT-29 BBR can inhibit the proliferation and migration of colon cancer SW480 cells and induce apoptosis by down-regulating GRP78 expression. 77

EVO HT-29
HCT-116 EVO inhibited the migration and invasion of HT-29 and HCT-116 CRC cells by reducing acyl-NF-κB p65, which reduced tumor metastasis. 78

Breast Cancer

Breast cancer is the leading cancer among women and the second most common cancer worldwide.⁸¹ Chemotherapy is the main treatment for breast cancer, and the commonly used chemotherapeutic agents include camptothecin (PTX), cisplatin, lapatinib, doxorubicin (DOX), and tamoxifen. However, their efficacy is reduced due to side effects and drug resistance.

Jia et al.⁸² found that ZJW-containing serum inhibited the proliferation of MCF-7 human breast cancer cells. The drug-containing serum significantly down-regulated Cyclin D1 and Cymiln E expressions, along with up-regulation of p21, p27, p53, and Bax expressions. Cyclin D1, Cymiln E, p21, and p27 are the key proteins regulating the G1/S cell cycle barrier, while p53 and Bax factors play important roles in apoptosis induction. The inhibitory effects of ZJW on MCF-7 human breast cancer cells are related to the blocking of G1/S cell cycle progression and induction of apoptosis.

BBR directly binds to DNA and increases lung and esophageal cancer cells’ radiosensitivity and the sensitivity of ovarian cancer cells to cisplatin and PARP inhibitors ^83,84; however, its effect on cellular DNA repair and the chemotherapeutic drug treatment remains unclear. Gao et al.⁸⁵ found that BBR arrested the cell cycle of breast cancer cells in the S phase and induced DNA breaks. It affected DNA repair in tumor cells by interfering with XRCC1-mediated base excision repair, thereby sensitizing cancer cells to the chemotherapeutic drugs, cisplatin, and cyclosporin. The chemotherapeutic drug, tamoxifen, is widely used for preventing and treating breast cancer; however, the emergence of resistant cells has led to a decrease in its therapeutic effects.⁸⁶ Wen et al.⁸⁷ found that when BBR and tamoxifen were combined, BBR induced G1 phase arrest and increased the sensitivity of drug-resistant MCF-7 cells to tamoxifen by upregulating p21 expression, along with enhanced tumor cell apoptosis by downregulation of the Bcl-2/Bax ratio, thereby promoting the anticancer effects of tamoxifen. The chemotherapeutic drug, lapatinib, a novel tyrosine kinase inhibitor of HER2/EGFR, is used to treat HER2-positive breast cancer.⁸⁸ However, acquired drug resistance limits the efficacy of lapatinib. BBR induces oxidative stress and mitochondria-related apoptotic pathways in human breast cancer cells.⁸⁹ Zhang et al.⁹⁰ evaluated the combination of BBR and lapatinib. JabbarZadeh et al.⁹¹ found that BBR greatly reduced the phosphorylation of EGFR and AKT and inhibited the activity of P38 MARK and ERK1/2 compared to lapatinib alone, resulting in the attenuation of tumor cell proliferation while preventing acquired drug resistance. BBR may serve as a possible alternative to lapatinib. A hypoxic microenvironment is one of the causes of MDR in tumor cells, and the upregulation of HIF-1α-activated P-gp protein expression is responsible for the development of hypoxic resistance.⁹² Hypoxia promotes HIF-1α expression to inhibit p53 activity, thus evading the apoptotic mechanism.⁹³ Pan et al.^94,95 found that during AMPK activation, hypoxia increased breast cancer cell DOX resistance. On the one hand, low doses of BBR could increase the sensitivity of drug-resistant breast cancer cells by inhibiting the AMPK-HIF-1α-P-gp pathway. On the other hand, high doses of BBR induced apoptosis directly by downregulating AMPK- and HIF-1α- induced p53 activation, thus making BBR a sensitizer and a chemotherapeutic agent with an important role in reversing MD. Qian et al.⁹⁶ found that BBR could directly induce apoptosis by downregulating P-gp and MDR protein (MRP1). BBR also inhibited K⁺ efflux by suppressing the efflux of the ATP-binding cassette transporter to attenuate cellular proliferation. Mitochondria play a role in most cellular metabolic processes,⁹⁷ and drug delivery from mitochondria is a promising and effective strategy for cancer therapy. The efficacy of PTX, a broad-spectrum anticancer drug, decreases due to MD. Cheng and Ji ⁹⁸ linked BBR and PTX via disulfide bonds (PTX-ss-BBR) and the combined drug, in A549 cells, showed good efficacy, dissipation of mitochondrial membrane potential, increased ROS levels in cancer cells, and led to cell cycle arrest in the G2/M phase, eventually causing apoptosis of cancer cells and inhibition of tumor growth. The combination of BBR and PTX enhanced the therapeutic effect of conventional chemotherapeutic drugs in A549.

Liao et al.⁹⁹ found that EVO inhibited Adriamycin-resistant human breast cancer NCI/ADR-RES cells and assessed the underlying mechanisms. EVO inhibited the proliferation of NCI/ADR-RES cells in a concentration-dependent manner, blocked the G2/M phase transition, and increased microtubule protein polymerization while promoting the phosphorylation of Raf-1 kinase and Bcl-2 proteins. EVO's anti-proliferative and apoptotic activities against several drug-resistant breast cancer cells have been demonstrated in vitro and in vivo. Wang et al.¹⁰⁰ found that EVO induced apoptosis in a caspase-dependent manner in Adriamycin-sensitive MCF-7 and Adriamycin-resistant MCF-7/ADR cells. The reversal of apoptosis resistance by Augustine might be related to its ability to inhibit the expression of the Ras/MEK/ERK pathway and inhibitors of apoptosis (IAPs). EVO potentiated the apoptotic effect of Adriamycin (DOX) by inhibiting the protein expression of the Ras/MEK/ERK cascade and IAPs, but not the levels and activity of P-gp. This study provided a new approach for the use of the natural product, EVO alone or in combination with DOX for the treatment of drug-resistant breast cancer (Table 4).

Table 4.
Effects of ZJW, EVO, and BBR on breast cancer.

Chinese medicine Cell lines Mechanisms References

ZJW MCF-7 Down-regulation of Cyclin D1 and Cymiln E expression, as well as up-regulation of p21, p27, p53, and Bax expression, effectively inhibited the proliferation of breast cancer cells, blocked the cell cycle process, and induced apoptosis. 82

BBR BT549
MDA- MB-231 It interferes with XRCC1-mediated base excision repair to affect DNA repair in tumor cells by arresting the cell cycle in the S phase and inducing DNA breaks, thereby sensitizing cancer cells to the chemotherapeutic drugs cisplatin and cyclosporin. 85

MCF-7
MCF-7/TAM Upregulation of p21 expression to induce G1 phase arrest and increase the sensitivity of drug-resistant MCF-7 cells to tamoxifen, and downregulation of the Bcl-2/Bax ratio to promote tumor cell apoptosis. 87

MDA-MB-231
MCF-7 Reduced phosphorylation of EGFR and AKT and inhibition of P38 MARK and ERK1/2 activity inhibit tumor cell proliferation while also avoiding acquired drug resistance. 91

MCF-7
MCF-7/MDR Inhibition of the AMPK-HIF-1α-P-gp pathway improves drug-resistant breast cancer cell sensitivity; downregulation of AMPK- HIF-1α induces p53 activation, leading to apoptosis. 95

MCF-7
MCF-7/DOX Downregulation of P-gp and MRP1 reverses drug resistance in drug-resistant cells; inhibition of the efflux function of the ATP-binding cassette transporter inhibits cell proliferation. 96

EVO MCF-7
MCF-7/ADR Blocked G2/M phase and increased microtubule protein polymerization while promoting phosphorylation of Raf-1 kinase and Bcl-2. 99

MCF-7
MCF-7/ADR Enhanced apoptotic effect of Adriamycin (DOX) by inhibiting the expression of Ras/MEK/ERK cascade and IAPs, but not the expression and activity of P-gp. 100

Ovarian Cancer

Zhao et al.¹⁰¹ found that treatment with the chemotherapeutic drug, etoposide (VP16), triggered the AA pathway, leading to elevation in PGE2 levels, ultimately enhancing the regeneration of ovarian cancer cells. BBR inhibited the reaggregation of tumor cells caused by the caspase3-iPLA2-AA-COX-2-PGE2 pathway by suppressing the expressions of iPLA2 and COX-2. BBR also reversed the elevated levels of FAK phosphorylation caused by abnormal PGE2 levels, thus reversing the regeneration of ovarian cancer cells after VP16 treatment. Recently, amplification and overexpression of the epidermal growth factor receptor (EGFR) and ErbB2 were confirmed in different cancers¹⁰²; these have been implicated in tumor cell proliferation and metastasis. Chuang et al.¹⁰³ found that BBR inhibited the activation of cyclin D1, MMPs, and VEGF, downstream of EGFR and ErbB2 by suppressing the EGFR-ErbB2/PI3K/Akt signaling pathway, thus reducing the production of EGFR and ErbB2, while BBR degraded ErbB2 through a ubiquitin-mediated proteasomal pathway, in turn inhibiting the proliferation and migration of tumor cells. MicroRNAs (miRNAs) have an important role in cancer cell proliferation, and miR-145 is the target gene of a large number of oncogenic factors. miR-145 levels are usually downregulated in cancer cells,^104,105 and MMPs play an important role in tumor cell invasion and metastasis.¹⁰⁶ Li et al.¹⁰⁷ found that BBR could inhibit the proliferation, migration, and invasion of SKOV3 tumor cells. It promoted the expression of miR-145 and decreased that of MMP16. Zhi et al.¹⁰⁸ found that BBR inhibited the ability of ovarian cancer SKOV3 cells to proliferate, migrate, and invade by inhibiting the hERG1 channels, and thus, BBR could serve as a potential therapeutic agent against platinum-resistant ovarian cancer cells, in which miR-93 is overexpressed. Chen et al.¹⁰⁹ found that BBR could increase the sensitivity of ovarian cancer cells to cisplatin by downregulating miR-93 levels and increasing those of PTEN. The regulation of the PTEN/AKT pathway by BBR has an important role in inhibiting drug-resistant cells. Liu et al.¹¹⁰ used the combination of BBR and DDP on ovarian cancer cells which induced the G0/G1 cell cycle block along with the downregulation of Cyclin D1. BBR and DDP inhibited PCNA and Ki67 expression while enhancing those of caspase-3 and caspase-8, thus promoting apoptosis. Enhanced expressions of RIPK3 and MLKL promoted cell necrosis.

Chemotherapeutic resistance is a major factor contributing to the poor prognosis of patients with ovarian cancer. Zhong et al.¹¹¹ investigated the effects and mechanisms of action of the Chinese herbal extract, EVO, on chemotherapy-sensitive and resistant human epithelial ovarian cancers. EVO was found to inhibit the proliferation of human ovarian epithelial carcinoma A2780 and related paclitaxel-resistant cell lines along with the induction of cell cycle arrest in a dose- and time-dependent manner. Further studies on the mechanism underlying the block revealed that this may be mediated by the combined action of Cyclin B1 and cell division cycle protein 2 (Cdc2), including the upregulation of Cyclin B1, p27, and p21, and the failure of Cdc2 and pRb activation, together with the regulation of the MAPK signaling pathway. EVO also enhanced the chemosensitivity of paclitaxel-resistant A2780/PTX cells through the downregulation of MDR-1 expression, accompanied by inhibition of MDR-1 function. This study preliminarily demonstrated that EVO exerted anti-proliferative effects on human ovarian epithelial cancer cells, A2780/WT and A2780/PTX, induced G2/M phase cell cycle arrest, and had treatment potential against ovarian cancer chemoresistance (Table 5).

Table 5.
Effects of EVO and BBR on Ovarian Cancer.

Chinese medicine Cell lines Mechanisms References

BBR MDAH-2774
SKOV-3
TOV-21G By inhibiting the EGFR-ErbB2/PI3 K/Akt signaling pathway, thereby reducing the production of EGFR and ErbB2.Degradation of ErbB2 by the ubiquitin-mediated proteasome, which in turn inhibited tumor cell proliferation and migration. 103

SKOV-3 Promote miR-145 expression and reduce MMP16 expression to inhibit the proliferation, migration, and invasion of tumor cells SKOV3. 107

SKOV-3 Inhibition of HERG1 channels suppresses the proliferation of ovarian cancer tumor SKOV3 cells. 108

SKOV-3 It induced G0/G1 cell cycle block and downregulated Cyclin D; inhibited PCNA and Ki67 expression, enhanced Caspase-3 and Caspase-8 expression, and promoted apoptosis, while enhanced RIPK3 and MLKL expression promoted cell necrosis. 110

EVO A2780 /WT
A2780 Upregulation of Cyclin B1, p27, and p21 and downregulation of Cdc2 and pRb resulted in G2/M phase cell cycle arrest and induction of apoptosis. 111

Liver Cancer

Globally, liver cancer is the most common fatal malignancy. Chemotherapy and immunotherapy are the best treatment options.¹¹² Yin et al.¹¹³ found that the ZJW significantly inhibited the proliferative capacity of hepatocellular carcinoma (HCC) cells, BEL-7402, mainly through the regulation of cancer proliferation-related pathways, including the MAPK, endocytosis, and insulin signaling pathways. The specific target genes affected by ZJW cover the three types of membrane receptors on the cell membrane upstream of the pathway and are involved in the transduction of downstream cascades. NF-κB signaling is a major pathway regulating the cell cycle. NF-κB can upregulate the expression of the cyclin D1 gene and antagonize the activity of P53 (oncogene), thus promoting tumor cell proliferation.¹¹⁴ Chou et al.¹¹⁵ found that ZJW inhibited the proliferation of human HCC HepG2 cells by suppressing c-myc. Xu et al.¹¹⁶ showed that caspase-3 and-9 activities increased significantly in cells treated with ZJW; Bax and Bak protein levels increased, while those of Bcl-2 and Bcl-xl decreased. Cell cycle arrest in the G0/G1 phase inhibited the proliferation of HCC cells.

Li et al.¹¹⁷ found that BBR enhanced the expression and nuclear translocation of FOXO3a by inactivating Akt, which in turn inhibited the expression of Skp2, and the translocated FOXO3a blocked the G0/G1 phase arrest by promoting the transcription of p21 Cip1 and p27 Kip1 in CDKIs, thus inhibiting the expression of Skp2. For cancer cell proliferation, glutamine is essential and is mainly transported as Na⁺ through the plasma membrane by the transporter protein, SLC1A5.¹¹⁸ Zhang et al.¹¹⁹ found that BBR could inhibit the uptake of glutamine by HCC cells by suppressing SLC1A5, thus inhibiting the proliferation of HCC cells. Li et al.¹²⁰ found that BBR inhibited the proliferation of HCC cells by reducing the level of NF-κB p65, thus promoting apoptosis. A combination of BBR and a Taspine derivative is a new strategy for postoperative cancer treatment, and the Taspine derivative, HMQ1611, showed inhibitory activity against breast cancer and NSCLC.¹²¹ Dai et al.¹²² combined HMQ1611 and BBR in HCC cells and found that the latter caused cell cycle arrest in the G1 phase by inhibiting the expressions of cyclinD1, cyclin E, and cdc2 and inhibited the phosphorylation of Akt, mTOR, and ERK, effectively suppressing cell proliferation. BBR negatively regulated the Wnt/β-catenin signaling pathway by upregulating Axin and inducing the degradation of β-catenin, which in turn inhibited the tumor cell migration ability. Thus, BBR can act on HCC cells through multiple pathways in combination. Radiotherapy is a treatment strategy for cancer, but the lack of radiosensitivity in HCC leads to low therapeutic efficacy in clinical settings. The Nrf2-mediated antioxidant defense system is the mainstay against oxidative stress in the liver,^123,124 and You et al.¹²⁵ found that BBR inhibited proteins related to Nrf2 signaling (Nrf2, HO-1, and NQO-1) in Huh7 and HepG2 cells, thereby increasing the sensitivity toward radiation, making BBR an effective adjuvant in HCC radiotherapy. Wang et al.¹²⁶ found that BBR could recruit Skp, Cullin, and F-box complex-β-transduced repeat protein (SCF (β-TCP))-containing HCC cells to induce cyclin D1 degradation, thereby increasing sensitivity to BBR. DOX is a chemotherapeutic agent commonly used in the treatment of HCC. However, DOX, like other chemotherapeutic agents, leads to suppression of the immune microenvironment,¹²⁷ thus facilitating tumor growth and inhibiting or even eliminating the immune rejection of cancer cells. Zhang et al.¹²⁸ found that in the combination of BBR and DOX, the latter phenotype can be retained by maintaining the phenotype of neutrophil N1, thereby maintaining immune surveillance and sensitivity of HCC HL-60 cells to DOX while promoting tumor cell apoptosis by blocking JAK/STAT3 to regulate neutrophil N2 cell function. Sorafenib is a multi-kinase inhibitor that suppresses multicellular surface tyrosine kinases and intracellular serine/threonine kinases; therefore, sorafenib is well suited to improving the survival and treatment of patients with advanced HCC,¹²⁹ but most patients develop resistance to sorafenib after long-term use. Huang et al.¹³⁰ found that in the combination of BBR and sorafenib, BBR inhibited HCC cell proliferation and induced apoptosis by increasing the expression of caspase-3 and decreasing those of anti-apoptotic proteins Bcl-2 and VEGF, thus increasing the sensitivity of HCC cells to sorafenib. The tumor necrosis factor-related apoptosis-inducing ligand (TRAIL/Apo2L) has been widely used in cancer chemotherapy because of its low toxicity to normal tissues¹³¹; however, the resistance of cancer cells to TRAIL through various mechanisms limits its utility.¹³² Ke et al.¹³³ reported that when TRAIL was combined with BBR, BBR-activated AMPK antagonized mTOR signaling, causing an increase in DR5, inhibition of cell viability, and induction of apoptosis, thus improving TRAIL resistance involving DR5 in patients with advanced HCC. 10-HCPT is a topoisomerase I inhibitor effective for the treatment of HCC, and upregulation of HIF-1α expression in HCC tissues is directly implicated in the development of drug resistance.^134,135 BBR can promote ROS production and is a HIF-1α inhibitor.¹³⁶ Qi et al.¹³⁷ showed greater antiproliferative capacity against HCC cells with the 10-HCPT and BBR combination, exhibiting a longer half-life, and similarly showed inhibition of tumor Hep-3B cells in immunodeficient nude mice, suggesting that BBR in 10-HCPT-resistant cells exhibited good activity.

Yu et al.¹³⁸ found that EVO exerted good antitumor effects both in vivo and in vitro in whole animal tumor suppression and drug in vitro tumor suppression experiments, respectively. Its anti-tumor mechanism was as follows: EVO blocked tumor cells in the G2/M phase in a time-dependent manner; it increased the expression and activities of caspases-3 and 8, which in turn gradually decreased the protein levels of the downstream cleaved PARP 1196KD fragment and increased the protein expression of the cleaved 85KD fragment, further decreasing the Bcl-2 protein expression while increasing that of Bax. This suggests that EVO induces the mechanism of apoptosis onset in a caspases-3 and 8-dependent manner, subsequently eliciting the whole process in tumor cells. Lai and Ju¹³⁹ found that EVO induced apoptosis through the MAPK pathway by upregulating cleaved PARP protein expression and downregulating the Bcl-2 protein level (Table 6).

Table 6.
Effects of ZJW, EVO, and BBR on liver cancer.

Chinese medicine Cell lines Mechanisms References

ZJW BEL-7402 Involved in the regulation of cancer proliferation-related pathways such as the MAPK signaling pathway, endocytosis pathway, and insulin signaling pathway to inhibit the proliferation ability of hepatocellular carcinoma cells BEL-7402. 113

BBR HepG-2 Inactivation of Akt, which in turn inhibits Skp2 expression and enhances FOXO3a expression and translocation to the nucleus, and translocated FOXO3a blocks G0/G1 phase arrest by promoting transcription of p21 Cip1 and p27 Kip1 in CDKIs and inhibiting Skp2 expression. 117

Hep3 B
BEL-7404 Inhibition of SLC1A5 inhibits the uptake of glutamine by hepatocellular carcinoma cells, thereby inhibiting the proliferation of hepatocellular carcinoma cells. 119

SMMC-7721
HepG-2 Increased expression levels of Caspase-3, decreased expression of anti-apoptotic protein Bcl-2 and vascular endothelial growth factor (VEGF) to inhibit hepatocellular carcinoma cell proliferation and induce apoptosis and increased the sensitivity of HCC to sorafenib. 130

LNCAP
C427 /MDR Activation of AMPK antagonized mTOR signaling, leading to increased DR5, inhibition of cell viability, and induction of apoptosis. 133

EVO SPC- A1 Induction of apoptosis occurs through a caspase-3,8-dependent pathway, causing a decrease in Bcl-2 protein expression and an increase in Bax protein expression. 138

Leukemia

Chronic myeloid leukemia (CML) is the result of the transformation of primitive hematopoietic cells by break point aggregation region protein (BCR) and the oncogene homolog of the Abelson murine leukemia virus (ABL) (BCR-ABL). Imatinib, a tyrosine kinase inhibitor, binds to the ATP-binding site of ABL¹⁴⁰ but its long-term use has led to imatinib resistance in many patients. Yin et al.¹⁴¹ found that BBR could bind to the protein tyrosine kinase (PTK) structural domain of BCR-ABL, thus inhibiting its activity based on the T315I mutation, and recruited the E3 ubiquitin-protein ligase, LRSAM1. Degradation of these proteins via the autophagy-lysosomal pathway inhibited the viability and colony formation of CML cells, thereby increasing the sensitivity of drug-resistant cells to imatinib.

Acute myeloid leukemia (AML) is a hematological disorder, wherein healthy hematopoietic cells produce blocked and immature adult myeloid cells that proliferate abnormally.¹⁴² Although chemotherapy results in some improvement in AML, its poor prognosis results in the longer survival of tumor cells.¹⁴³ Li et al.¹⁴⁴ further elucidated the mechanism of reversal of MDR in K562/ADR cells by investigating the effects of EVO bases on cellular proliferation, cell cycle, and MDR in leukemia K562 cells and K562/ADR-resistant cells. The proliferation of K562 and K562/ADR cells was significantly inhibited by EVO and ursodiol (DNR), which correlated positively with drug dose and administration time. The protein and mRNA levels of BCRP and MDR1 were significantly down-regulated. EVO was effective in reversing DNR resistance in leukemic K562/ADR cells, and this effect might be related to a reduction in the expression of MDR1 on the cell membrane (Table 7).

Table 7.
Effects of EVO and BBR on Leukemia.

Chinese medicine Cell lines Mechanisms References

BBR K562 Binding to the protein tyrosine kinase (PTK) structural domain of BCR-ABL, inhibiting the activity of BCR-ABL by T315I mutation, and recruiting the E3 ubiquitin-protein ligase LRSAM1 to degrade these proteins via the autophagic lysosomal pathway inhibited the viability and colony formation of CML cells, thereby increasing the sensitivity of drug-resistant cells to imatinib. 141

EVO K562/ADR The expression levels of BCRP, MDR1 protein, and mRNA were down-regulated. It was confirmed that EVO was effective in reversing DNR resistance in leukemic K562/ADR cells, and this effect may be related to EVO by reducing the expression of multidrug resistance protein MDR1 on the cell membrane. 144

Discussion and Conclusions

MDR is a common form of drug resistance, which can be divided into natural and secondary types. With advances in herbal research, several of these have shown a reversal of MDR. EVO and BBR, main active ingredients of a traditional Chinese medicine, have good therapeutic effects on several tumors (Tables 8 and 9).

Table 8.
Abbreviated list of common cancer molecular targets.

Abbreviation Full name

AA Aminoacid

ABCB1 ATP-binding cassette subfamily B member 1

ABCC-2 Recombinant ATP binding cassette transporter C2

Akt Protein kinase B

Apo2L Apo2L Protein

axin 2 Axis inhibition protein 2

Bax BCL2-associated X

Bcl-2 B-cell lymphoma-2

Bcl-xL Recombinant human Bcl-xL

BCR B cell receptor

BCR-ABL Breakpoint cluster region-Abelson leukemia virus

Bmi-1 BMI1 polyclonal antibody

Caspase Cysteinyl aspartate specific proteinase

caspase-3 Cysteinyl aspartate specific proteinase

caspase-9 Cysteinyl aspartate specific proteinase-9

Cdc2 Cell division control protein 2 homolog

cisplatin Cell division cycle protein 2

C-myc Recombinant C-Myc binding protein

cofilin-1 Cofilin1 (phospho-Tyr139) antibody

COX-2 Cyclooxygenase 2

cyclin D1 Cyclin D1 polyclonal antibody

Cymiln E Cyclin E polyclonal antibody

DNMT1 Recombinant DNA methyltransferase 1

DR5 Recombinant death receptor 5

ErbB2 ERBB2 (Human) recombinant protein

FABPs Fatty acid-binding protein 4

FAK Focal adhesion kinase

Fas-L Recombinant factor related apoptosis ligand

FOXO3a Forkhead box O3

GLUT1 Recombinant glucose transporter 1

GRP78 78 kDa glucose-regulated protein

HER2 ERBB2 (Human) recombinant protein

HIF-1α Hypoxia inducible factor 1, alpha subunit

HK Ⅱ Hexokinase II

HNF4α Hepatocyte nuclear factor 4-alpha

HO-1 heme oxygenase 1

iPLA2 Recombinant phospholipase A2

JAK Janus protein tyrosine kinase

Jak2 Tyrosine-protein kinase JAK2

JNK C-Jun N-terminal kinase

Ki67 KI-67 protein (KI67P) recombinant protein

LDHA Recombinant lactate dehydrogenase A

LRP Lipoprotein receptor-related protein

LRSA1 Anti-LRSAM1

MAPK Mitogen-activated protein kinase

MEK Mitogen-activated protein

MMP-2 Matrix metalloproteinase-2

MMP-3 Matrix metalloproteinase-3

MRP Recombinant motility related protein

mTOR Mammalian target of rapamycin

NF-κB Nuclear factor kappa-B

NQO-1 NADPH: Quinone oxidoreductase 1

Nrf2 Nuclear factor erythroid 2-related factor 2

p21 Cyclin-dependent kinase inhibitor 1A

p27 Cyclin-dependent kinase inhibitor 1B

p-4E-BP-1 Phosphorylated 4E binding protein 1

p53 Protein 53

p70S6K 70 kDa ribosomal protein S6 kinase 1

p-AMPK Adenosine 5′-monophosphate (AMP)-activated protein kinase

PARP Poly(ADP-ribose) polymerase

PCNA Proliferating cell nuclear antigen

PDPK1 Recombinant phosphoinositide dependent protein kinase 1

PGE2 Prostaglandin E2

P-gp P-glycoprotein

PI3-K PI3 K (p85α) protein

PP1 Protein phosphatase-1 (antigen)

PP2A Protein phosphatase 2 (formerly 2A)

PTEN Phosphatase and tensin homolog deleted on chromosome 10

PI3K Phosphatidylinositol kinase

ROCK1 Rho-associated protein kinase 1

RXR-α Recombinant retinoid X receptor alpha (RXRa)

SCAP SREBP cleavage-activating protein

SLC1A5 Recombinant solute carrier family 1

Sox2 Recombinant sex determining region Y box protein 2

SP1 Stimulatory protein 1

SREBP1 Sterol-regulatory element binding protein 1

STAT3 Signal transducer and activator of Transcription 3

TRAIL Tumor necrosis factor ligand superfamily member 10

VEGF Vascular endothelial growth factor

Wnt Wnt signaling protein

4-Oct Recombinant human oct4 protein

Table 9.
Cancer cell line thumbnails.

Cancer Cell line

Gastrocolic cancer SGC - 7901

SGC 7901 / DDP

BGC-823

BGC 823 /DDP

AGS

MGC 803

Non-small cell lung cancer A549

A549/DDP

H1975

H1650

H1819

H1299

HCC 827

BEAS-2B

PC 9

NCI- H1650

NCI- H460,

NCI- H1299

C 427 /MDR

SPC- A1

Colorectal cancer HCT-116

HCT 116 /L-OHP

KM12

DLD- 1

Caco- 2

SW480

HT- 29

Breast cancer MCF- 7 /TAM

MCF- 7 / DOX

MCF- 7 / ADR

BT 549

MDA- MB-231

Ovarian cancer TOV- 21G

MDAH- 2774

SKOV- 3

A2780

A2780 /WT

Liver cancer SMMC-7721

BEL-7402

BEL-7404

HepG-2

Hep3 B

Chronic myeloid leukemia K562

K562/ADR

ZJW can not only inhibit the proliferation of tumor cells, but also reverse multi-drug resistance. Its mechanism of tumor inhibition may be related to activation of mitochondrial pathway, upregulation of Bax and Bak, downregulation of Bcl-2 and Bcl-xL proteins; inhibition of the PI3 K/Akt/NF-κB pathway, and downregulation of ABCB1/P-gp protein expression. In addition, ZJW enhanced JNK activation and Bcl-2 expression while inhibiting Bax expression, thus promoting the pro-apoptotic effects of cisplatin and significantly improving the chemosensitivity of DDP in drug-resistant cells. BBR induced cell cycle G0/1 phase arrest by downregulating HNF4α and cyclin D1 expression; inhibited MAPK/mTOR/p70S6 K and AKT, induced cellular static autophagy, and inhibited the protein expressions of transcription factors SP1 and PDPK1, reduced tumor cell migration and invasion; selective inhibition of G-R NSCLC cells and RASFs growth through the ROS/AMPK pathway; inhibition of Wnt/β-catenin pathway, downregulation of GRP78 expression, and inhibition of AMPK-HIF-1α-P-gp pathway to improve the sensitivity of drug-resistant breast cancer cells; and enhance the activities of caspase-3 and caspase-8 through various ways, and to inhibit the proliferation of ovarian cancer cells. EVO inhibited the Wnt/β-catenin signaling pathway to hinder cell proliferation; inhibited the NOTCH3 signaling pathway, which affected the NF-κB signaling pathway to promote apoptosis and inhibit cell proliferation. The pro-apoptotic effect of Adriamycin was enhanced by inhibiting the protein expression of Ras/MEK/ERK Cascade and IAPs, and down-regulated Cdc2 and pRb levels by upregulating Cyclin B1, p27, and p21, induced cell cycle arrest and apoptosis in G2/M phase. EVO downregulates the protein and mRNA expressions of BCRP and MDR1, increases sensitivity of K562/ADR to DNR; and down regulates mTOR/ s6k1-mediated Mcl-1, enhancing erlotinib-induced apoptosis of NSCLC cells, while reversing drug resistance.

ZJW, EVO, and BBR can reverse drug resistance to some extent, but this work is still in a preclinical research stage because of lack of in-depth research on the mechanism of reversing drug resistance and relatively simple research methods.

Cancer is a complex disease that changes at multiple molecular levels. These molecules belong to different omics and have their own special and complex roles in the body, including proteomics, metabolomics, transcriptomics, genomics, and epigenomics, which are collectively referred to as “multiomics.” In recent years, the study of tumor drug resistance has developed rapidly from single-group to multi-group combination.¹⁴⁵ Spatial transcriptome sequencing is an emerging sequencing technology, which can provide “tissue spatial information” of gene expression and understand the relative positional relationship between specific cells and tissue slices, and thus provides a new perspective for tumor research.¹⁴⁶ This new technology can be used to detect the reverse drug resistance of ZJW, EVO, and BBR, and further study the mechanism of reverse drug resistance through bioinformatics analysis and cell biology experiments.

In addition, studies have shown that the combination of TCM and chemotherapy can not only regulate multiple signaling pathways of abnormal cells, significantly enhance the anti-tumor effect of these therapies, and achieve the purpose of killing tumor cells at different stages of tumor, but also can inhibit the toxic side effects and complications caused by chemotherapy. Therefore, combination therapy is a new treatment option, which is becoming more and more prominent in the treatment of cancer. Shen et al.¹⁴⁷ combined TCM with the chemotherapy drug cisplatin to observe the patient's condition. The results showed that chemotherapy combined with TCM was effective with less adverse reactions, stable control of the disease, and good prognosis. Wu et al.¹⁴⁸ combined Sijunzi Decoction with cisplatin to treat gastric cancer patients. The results showed that the combined therapy could prolong the overall survival period and improve the quality of life of gastric cancer patients. Zhang et al.¹⁴⁹ combined Duhuo Jisheng Decoction with doxorubicin to treat advanced gastric cancer patients with spleen deficiency syndrome. The results found that compared with the chemotherapy group and the single administration group, the TCM combined with chemotherapy could prolong the overall survival time, improve the life quality of patients, reduce the toxicity, and enhance the efficacy of tumor treatment.

The anti-tumor effects of Huanglian, Wuzhuyu, and their main active components, BBR and EVO, have been deeply studied, and it was found that ZJW composed of Huanglian and Wuzhuyu had stronger effects than a single medicine (Huanglian, Wuzhuyu, BBR, or EVO) in anti-tumor cell growth and for promoting tumor cell apoptosis, indicating that Huanglian and Wuzhuyu have synergistic effects. Therefore, in future, more advanced methods, such as spatial transcriptome technology and multiomics technology, will be used to study Huanglian combined with Wuzhuyu, EVO in combination with BBR, and ZJW combined with other chemotherapy drugs, to find more drug targets, and to determine the reversing drug resistance mechanism of Zuojinwan, the synergistic antitumor mechanism of EVO in combination with BBR, and Huanglian combined with Wuzhuyu.

Chinese medicine	Cell lines	Mechanism	References
ZJW	SGC-7901 SGC-7901/DDP BGC823/DDP	Induction of the mitochondrial apoptotic pathway； promotes JNK activation and Bcl-2 expression, inhibits Bax expression, increases cytochrome C release from mitochondria to the cytoplasm, and activates the cysteine cade response, thereby enhancing the pro-apoptotic effects of cisplatin.	40
	SGC-7901 SGC-7901/DDP	The PI3 K/Akt pathway significantly enhanced the expression of PP1 and PP2A and promoted p-cofilin-1 dephosphorylation and cofilin-1 mitochondrial potential, thereby enhancing the chemosensitivity of DDP-resistant cells.	41
	SGC-7901 SGC-7901/DDP	It may be related to the inhibition of glycolysis, and C-myc, HIF-1α, GLUT1, LDHA, and HK II may be its targets, thus inhibiting the proliferation of drug-resistant cells in gastric cancer.	42
	SGC-7901 SGC-7901/DDP	Elevated expression of caspase-3 and caspase-9, drug resistance-associated protein P-gp and MRP, and enhanced sensitivity of SCC-7901/DDP cells to DDP.	31
BBR	SGC-7901 AGS	Down-regulation of HNF4α, up-regulation of p-AMPK, and down-regulation of cyclin D1 expression induced cell cycle G0/1 phase arrest and inhibited tumor cell proliferation; meanwhile, down-regulation of MMP-3 attenuated the ability of migration and invasion.	46
	MGC-803	Induction of MGC803 fatty acid accumulation, inhibition of FABPs and PPARα protein expression, and fatty acid accumulation induced apoptosis.	47
	BGC-823	Inhibition of MAPK/mTOR/p70S6 K and Akt induces cytostatic autophagy to inhibit the growth of human gastric cancer cells in vitro and in vivo.	49
EVO	SGC-7901 AGS	It inhibits the Wnt/β-catenin signaling pathway, thereby suppressing the proliferation and stem cell properties of GCSCs and inhibiting EMT.	52

Chinese medicine	Cell lines	Mechanisms	References
BBR	A549	Inhibition of NSCLC cell growth and induction of apoptosis through p38α MAPK-mediated increase of p53 and transcription factor FOXO3a protein.	54
	A549, H1975	Inhibiting the protein expression of transcription factors SP1 and PDPK1 reduces the migration and invasion of tumor cells. In addition, BBR also blocks the cell cycle by inhibiting DNMT1 expression.	57
	H1975, H1650 H1819, HCC827 A549, H1299 BEAS-2B	Regulation of SREBP1 through the ROS/AMPK pathway selectively inhibited the growth of G-R NSCLC cells and synovial fibroblasts, which in turn inhibited NSCLC proliferation.	58
	A549	BBR inhibits cell proliferation and promotes apoptosis through inhibition of MMP-2, Bcl-2/Bax, and Jak2/VEGF/NF-κB/AP-1 signaling pathways.	59
	A549,PC-9	Regulation of miR-19a and TF expression through the miR19a/TF/MAPK signaling pathway inhibits NSCLC cell growth and promotes apoptosis.	60
EVO	A549,H1299	Activation of DNMT s-induced NOTCH3 methylation effectively inhibits NOTCH3 signaling and thus exerts anti-lung cancer effects.	61
	A549,A549/DDP	Promotes apoptosis and inhibits cell proliferation by affecting the NF-κB signaling pathway.	62
	A549, NCI-H460 NCI-H1299, NCI-H1650	Mcl-1 downregulation mediated by mTOR/s6k 1 in turn enhances erlotinib-induced apoptosis in human non-small cell lung cancer cells.	69

Chinese medicine	Cell lines	Mechanisms	References
ZJW	SMMC-7721,BEL-7402 BEL-7404,HepG-2 A549,NCI-H446,NCI-H460,HCT-116	The Bax and Bak proteins were upregulated, Bcl-2 and Bcl-xL proteins were downregulated, while Caspase-3 and Caspase-9 protease activities were upregulated, indicating that the ZJW inhibits tumor proliferation and thus apoptosis by activating the mitochondrial pathway.	72
	HCT-116/L-OHP SGC-7901/DDP	Downregulation of ABCB1/P-gp protein expression by inhibiting the PI3 K/Akt/NF-κB pathway exerts a repressive effect on the expression of P-gp	10
BBR	HCT-116 KM12	By inhibiting excessive glucose metabolism in colon cancer cells by inhibiting mTOR-dependent HIF-1α protein synthesis, BBR suppressed cancer cell proliferation.	74
	DLD-1 Caco-2	Cell proliferation was inhibited by inducing G0/G1 phase cell cycle arrest and Wnt/β-catenin pathway in colon cancer cells, while BBR inhibited SREBP-1 activation and SREBP cleavage-activating protein (SCAP) expression, leading to inhibition of lipid synthesis and suppression of colon cancer xenograft growth.	75
	SW480 HT-29	BBR can inhibit the proliferation and migration of colon cancer SW480 cells and induce apoptosis by down-regulating GRP78 expression.	77
EVO	HT-29 HCT-116	EVO inhibited the migration and invasion of HT-29 and HCT-116 CRC cells by reducing acyl-NF-κB p65, which reduced tumor metastasis.	78

Chinese medicine	Cell lines	Mechanisms	References
ZJW	MCF-7	Down-regulation of Cyclin D1 and Cymiln E expression, as well as up-regulation of p21, p27, p53, and Bax expression, effectively inhibited the proliferation of breast cancer cells, blocked the cell cycle process, and induced apoptosis.	82
BBR	BT549 MDA- MB-231	It interferes with XRCC1-mediated base excision repair to affect DNA repair in tumor cells by arresting the cell cycle in the S phase and inducing DNA breaks, thereby sensitizing cancer cells to the chemotherapeutic drugs cisplatin and cyclosporin.	85
	MCF-7 MCF-7/TAM	Upregulation of p21 expression to induce G1 phase arrest and increase the sensitivity of drug-resistant MCF-7 cells to tamoxifen, and downregulation of the Bcl-2/Bax ratio to promote tumor cell apoptosis.	87
	MDA-MB-231 MCF-7	Reduced phosphorylation of EGFR and AKT and inhibition of P38 MARK and ERK1/2 activity inhibit tumor cell proliferation while also avoiding acquired drug resistance.	91
	MCF-7 MCF-7/MDR	Inhibition of the AMPK-HIF-1α-P-gp pathway improves drug-resistant breast cancer cell sensitivity; downregulation of AMPK- HIF-1α induces p53 activation, leading to apoptosis.	95
	MCF-7 MCF-7/DOX	Downregulation of P-gp and MRP1 reverses drug resistance in drug-resistant cells; inhibition of the efflux function of the ATP-binding cassette transporter inhibits cell proliferation.	96
EVO	MCF-7 MCF-7/ADR	Blocked G2/M phase and increased microtubule protein polymerization while promoting phosphorylation of Raf-1 kinase and Bcl-2.	99
	MCF-7 MCF-7/ADR	Enhanced apoptotic effect of Adriamycin (DOX) by inhibiting the expression of Ras/MEK/ERK cascade and IAPs, but not the expression and activity of P-gp.	100

Chinese medicine	Cell lines	Mechanisms	References
BBR	MDAH-2774 SKOV-3 TOV-21G	By inhibiting the EGFR-ErbB2/PI3 K/Akt signaling pathway, thereby reducing the production of EGFR and ErbB2.Degradation of ErbB2 by the ubiquitin-mediated proteasome, which in turn inhibited tumor cell proliferation and migration.	103
	SKOV-3	Promote miR-145 expression and reduce MMP16 expression to inhibit the proliferation, migration, and invasion of tumor cells SKOV3.	107
	SKOV-3	Inhibition of HERG1 channels suppresses the proliferation of ovarian cancer tumor SKOV3 cells.	108
	SKOV-3	It induced G0/G1 cell cycle block and downregulated Cyclin D; inhibited PCNA and Ki67 expression, enhanced Caspase-3 and Caspase-8 expression, and promoted apoptosis, while enhanced RIPK3 and MLKL expression promoted cell necrosis.	110
EVO	A2780 /WT A2780	Upregulation of Cyclin B1, p27, and p21 and downregulation of Cdc2 and pRb resulted in G2/M phase cell cycle arrest and induction of apoptosis.	111

Chinese medicine	Cell lines	Mechanisms	References
ZJW	BEL-7402	Involved in the regulation of cancer proliferation-related pathways such as the MAPK signaling pathway, endocytosis pathway, and insulin signaling pathway to inhibit the proliferation ability of hepatocellular carcinoma cells BEL-7402.	113
BBR	HepG-2	Inactivation of Akt, which in turn inhibits Skp2 expression and enhances FOXO3a expression and translocation to the nucleus, and translocated FOXO3a blocks G0/G1 phase arrest by promoting transcription of p21 Cip1 and p27 Kip1 in CDKIs and inhibiting Skp2 expression.	117
	Hep3 B BEL-7404	Inhibition of SLC1A5 inhibits the uptake of glutamine by hepatocellular carcinoma cells, thereby inhibiting the proliferation of hepatocellular carcinoma cells.	119
	SMMC-7721 HepG-2	Increased expression levels of Caspase-3, decreased expression of anti-apoptotic protein Bcl-2 and vascular endothelial growth factor (VEGF) to inhibit hepatocellular carcinoma cell proliferation and induce apoptosis and increased the sensitivity of HCC to sorafenib.	130
	LNCAP C427 /MDR	Activation of AMPK antagonized mTOR signaling, leading to increased DR5, inhibition of cell viability, and induction of apoptosis.	133
EVO	SPC- A1	Induction of apoptosis occurs through a caspase-3,8-dependent pathway, causing a decrease in Bcl-2 protein expression and an increase in Bax protein expression.	138

Chinese medicine	Cell lines	Mechanisms	References
BBR	K562	Binding to the protein tyrosine kinase (PTK) structural domain of BCR-ABL, inhibiting the activity of BCR-ABL by T315I mutation, and recruiting the E3 ubiquitin-protein ligase LRSAM1 to degrade these proteins via the autophagic lysosomal pathway inhibited the viability and colony formation of CML cells, thereby increasing the sensitivity of drug-resistant cells to imatinib.	141
EVO	K562/ADR	The expression levels of BCRP, MDR1 protein, and mRNA were down-regulated. It was confirmed that EVO was effective in reversing DNR resistance in leukemic K562/ADR cells, and this effect may be related to EVO by reducing the expression of multidrug resistance protein MDR1 on the cell membrane.	144

Abbreviation	Full name
AA	Aminoacid
ABCB1	ATP-binding cassette subfamily B member 1
ABCC-2	Recombinant ATP binding cassette transporter C2
Akt	Protein kinase B
Apo2L	Apo2L Protein
axin 2	Axis inhibition protein 2
Bax	BCL2-associated X
Bcl-2	B-cell lymphoma-2
Bcl-xL	Recombinant human Bcl-xL
BCR	B cell receptor
BCR-ABL	Breakpoint cluster region-Abelson leukemia virus
Bmi-1	BMI1 polyclonal antibody
Caspase	Cysteinyl aspartate specific proteinase
caspase-3	Cysteinyl aspartate specific proteinase
caspase-9	Cysteinyl aspartate specific proteinase-9
Cdc2	Cell division control protein 2 homolog
cisplatin	Cell division cycle protein 2
C-myc	Recombinant C-Myc binding protein
cofilin-1	Cofilin1 (phospho-Tyr139) antibody
COX-2	Cyclooxygenase 2
cyclin D1	Cyclin D1 polyclonal antibody
Cymiln E	Cyclin E polyclonal antibody
DNMT1	Recombinant DNA methyltransferase 1
DR5	Recombinant death receptor 5
ErbB2	ERBB2 (Human) recombinant protein
FABPs	Fatty acid-binding protein 4
FAK	Focal adhesion kinase
Fas-L	Recombinant factor related apoptosis ligand
FOXO3a	Forkhead box O3
GLUT1	Recombinant glucose transporter 1
GRP78	78 kDa glucose-regulated protein
HER2	ERBB2 (Human) recombinant protein
HIF-1α	Hypoxia inducible factor 1, alpha subunit
HK Ⅱ	Hexokinase II
HNF4α	Hepatocyte nuclear factor 4-alpha
HO-1	heme oxygenase 1
iPLA2	Recombinant phospholipase A2
JAK	Janus protein tyrosine kinase
Jak2	Tyrosine-protein kinase JAK2
JNK	C-Jun N-terminal kinase
Ki67	KI-67 protein (KI67P) recombinant protein
LDHA	Recombinant lactate dehydrogenase A
LRP	Lipoprotein receptor-related protein
LRSA1	Anti-LRSAM1
MAPK	Mitogen-activated protein kinase
MEK	Mitogen-activated protein
MMP-2	Matrix metalloproteinase-2
MMP-3	Matrix metalloproteinase-3
MRP	Recombinant motility related protein
mTOR	Mammalian target of rapamycin
NF-κB	Nuclear factor kappa-B
NQO-1	NADPH: Quinone oxidoreductase 1
Nrf2	Nuclear factor erythroid 2-related factor 2
p21	Cyclin-dependent kinase inhibitor 1A
p27	Cyclin-dependent kinase inhibitor 1B
p-4E-BP-1	Phosphorylated 4E binding protein 1
p53	Protein 53
p70S6K	70 kDa ribosomal protein S6 kinase 1
p-AMPK	Adenosine 5′-monophosphate (AMP)-activated protein kinase
PARP	Poly(ADP-ribose) polymerase
PCNA	Proliferating cell nuclear antigen
PDPK1	Recombinant phosphoinositide dependent protein kinase 1
PGE2	Prostaglandin E2
P-gp	P-glycoprotein
PI3-K	PI3 K (p85α) protein
PP1	Protein phosphatase-1 (antigen)
PP2A	Protein phosphatase 2 (formerly 2A)
PTEN	Phosphatase and tensin homolog deleted on chromosome 10
PI3K	Phosphatidylinositol kinase
ROCK1	Rho-associated protein kinase 1
RXR-α	Recombinant retinoid X receptor alpha (RXRa)
SCAP	SREBP cleavage-activating protein
SLC1A5	Recombinant solute carrier family 1
Sox2	Recombinant sex determining region Y box protein 2
SP1	Stimulatory protein 1
SREBP1	Sterol-regulatory element binding protein 1
STAT3	Signal transducer and activator of Transcription 3
TRAIL	Tumor necrosis factor ligand superfamily member 10
VEGF	Vascular endothelial growth factor
Wnt	Wnt signaling protein
4-Oct	Recombinant human oct4 protein

Cancer	Cell line
Gastrocolic cancer	SGC - 7901
	SGC 7901 / DDP
	BGC-823
	BGC 823 /DDP
	AGS
	MGC 803
Non-small cell lung cancer	A549
	A549/DDP
	H1975
	H1650
	H1819
	H1299
	HCC 827
	BEAS-2B
	PC 9
	NCI- H1650
	NCI- H460,
	NCI- H1299
	C 427 /MDR
	SPC- A1
Colorectal cancer	HCT-116
	HCT 116 /L-OHP
	KM12
	DLD- 1
	Caco- 2
	SW480
	HT- 29
Breast cancer	MCF- 7 /TAM
	MCF- 7 / DOX
	MCF- 7 / ADR
	BT 549
	MDA- MB-231
Ovarian cancer	TOV- 21G
	MDAH- 2774
	SKOV- 3
	A2780
	A2780 /WT
Liver cancer	SMMC-7721
	BEL-7402
	BEL-7404
	HepG-2
	Hep3 B
Chronic myeloid leukemia	K562
	K562/ADR

Footnotes

Declaration of Conflicting Interests

The author(s) declared no potential conflicts of interest with respect to the research, authorship, and/or publication of this article.

Funding

This work was financially supported by the National Natural Science Foundation of China (81001669, 82003653), the Nature Science Foundation of Shaanxi Province (2020JZ-55), the Subject Innovation Team of Shaanxi University of Chinese Medicine (2019-PY02), and the Key Laboratory Research Project of Shaanxi Province (20J5035), Shaanxi Provincial Health Research Fund project (2022A018)

ORCID iDs

Hui Guo

Yuping Tang

Xinyi Wang

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Research Progress on the Anti-Tumor Mechanism and Reversal of Multidrug Resistance of Zuojin Pill and its Main Components,Evodiamine and Berberine

Abstract

Background

Method

Conclusion

Keywords

Gastric Cancer (GC)

Non-Small Cell Lung Cancer (NSCLC)

Colon Cancer

Breast Cancer

Ovarian Cancer

Liver Cancer

Leukemia

Discussion and Conclusions

Footnotes

Declaration of Conflicting Interests

Funding

ORCID iDs

References