The purpose of this study was to explore the role of ligustrazine in vascular calcification.
Methods
After β-GP stimulation, vascular smooth muscle cells (VSMCs) were detected by Alizarin Red Staing staining. Calcium content and alkaline phosphatase (ALP) activity were detected by intracellular calcium assay kit and ALP assay kit, respectively. The expression of peroxisome proliferation-activated receptor (PPAR-γ) pathway–related proteins was detected by Western blot. PPAR-γ, MSX2, osteopontin (OPN), sclerostin, and BGP were detected by RT-PCR.
Results
β-GP induced the decreased activity and expression of PPAR-γ and ALP in VSMCs, while ligustrazine activated the expression of PPAR-γ. Through activation of PPAR-γ, ligustrazine decreased β-GP–induced VSMC calcification, decreased the expression of markers of osteogenesis and chondrogenic differentiation, and increased the expression of VSMC markers.
Conclusion
Ligustrazine activates the PPAR-γ pathway and plays a protective role in vascular calcification.
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