ヒト脂肪組織由来幹細胞に対するbFGF刺激によるサイトカインの放出 : 創傷治癒に対するIL-8およびCXCL-1の効果

抄録

　Objectives: Adipose-derived stem cells (ADSCs) are widely used in wound care because they release a variety of cytokines. However, the molecular mechanism of paracrine action remains unclear. It has been reported that basic fibroblast growth factor (bFGF) enhances the therapeutic potential of ADSCs. In this study, we searched for cytokines whose release from ADSCs is enhanced by bFGF stimulation.　
　Results: Quantitative RT-PCR and ELISA analyses revealed that bFGF upregulates CXCL-1 and IL-8 mRNA synthesis and secretion from ADSCs. Both cytokines showed the ability to promote important processes for wound healing, including tube formation of vascular and lymphatic endothelial cells and cell migration of fibroblasts in vitro.　
　Conclusions: These results suggest that bFGF stimulation increases the secretion of CXCL-1 and IL-8 from ADSCs and that these cytokines may promote angiogenesis, lymphangiogenesis, and cell migration, leading to enhanced efficiency of wound healing.