Systemic sclerosis (SSc) is one of the most complex connective tissue diseases. Although significant progress in the knowledge of pathogenic mechanisms and timely diagnosis, therapeutic options remain limited. The attempt to find new treatments for SSc has led researchers to investigate the potential of cellular therapies using autologous and allogeneic stem cells. Multipotent mesenchymal stromal cells (MSCs) are considered an attractive candidate for cell-based therapies. MSCs comprise a heterogeneous population of cells with multilineage differentiation potential that are preferentially able to home to the sites of damage, and secrete various cytokines and growth factors that can have immunomodulatory, angiogenic, anti-inflammatory and anti-apoptotic effects. MSCs from bone-marrow have been first extensively characterized. Adipose tissue represents an additional abundant and accessible source of stem cells. Compared with BM-MSCs, adipose-derived stromal/stem cells (ASCs) offer several advantages, including ease of isolation, less donor morbidity, relative abundance, and rapidity of expansion. For all these reasons, at present ASCs are one of the most attractive and promising sources of adult stem cells for cell therapy, finding a field of application in the treatment of SSc, too. This review will focus on the current applications and possible future perspectives of adipose tissue-cell therapies in SSc.
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