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ENGLISH ABSTRACT
JOURNAL ARTICLE
REVIEW
[Vascular regeneration therapy for intractable vasculitis].
The field of cell-based transplantation has expanded considerably and is poised to become an established cardiovascular therapy in the near future. In this review, we will focus on endothelial progenitor cells (EPCs), which are immature cells capable of differentiating into mature endothelial cells (ECs). The major source of EPCs is the bone marrow (BM). BM-derived EPCs are mobilized into peripheral blood and recruited to the foci of pathophysiological neovascularization and reendothelialization, thereby contributing to vascular regeneration. Severe EPC dysfunction is an indicator of poor prognosis and severe endothelial dysfunction. Indeed, number of circulating EPCs and their migratory activity are reduced in patients with diabetes, coronary artery disease (CAD) or subjects with multiple coronary risk factors. Effective neovascularization induced by EPC transplantation for hindlimb, myocardial and cerebral ischemia has been demonstrated in many preclinical studies, and early clinical trials of EPC transplantation in chronic and acute CAD as well as Buerger disease indicate safety and feasibility of the cell-based therapies. Further development in cell processing technology for efficient isolation, expansion, mobilization, recruitment and transplantation of EPCs into target tissues are underway and expected to be tested in clinical trials in the near future.
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