擴(kuò)增后脂肪源干細(xì)胞的成骨分化及體外免疫調(diào)節(jié)的研究
[Abstract]:Aim: to investigate the methods of isolation, culture and amplification of human adipose stem cells (adipose derived stem cells,ADSCs) in vitro and their ability to induce differentiation and immunomodulation into osteoblasts. Methods: stem cells from adipose tissue were isolated by tissue digestion and cultured in vitro. The expanded ADSCs promoted the differentiation of adipose cells into osteoblasts under the condition of osteogenesis. In order to evaluate the immunogenicity and immunomodulatory function of ADSCs, the ability of expanded ADSCs to inhibit lymphocyte proliferation in vitro was also detected. Results: the adipose stem cells isolated and cultured in vitro grew stably and expanded quickly. High expression of stem cell associated antigen was detected by flow cytometry. After induction to osteoblasts, immunohistochemical staining and RT-PCR analysis showed that the induced cells secreted the specific extracellular matrix of osteoblasts and formed calcium nodules. Simultaneously amplified ADSCs did not induce lymphocyte proliferation in vitro and inhibited lymphocyte proliferation in mixed lymphocyte reaction. Conclusion: adipose-derived stem cells are easy to be isolated and cultured in vitro and have the ability of directional osteogenesis differentiation and immunomodulation, which is a reliable source of seed cells for tissue repair and cell therapy.
【學(xué)位授予單位】:新疆醫(yī)科大學(xué)
【學(xué)位級別】:碩士
【學(xué)位授予年份】:2009
【分類號】:R329
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