成人骨髓干細(xì)胞向肝細(xì)胞誘導(dǎo)分化的實驗研究
[Abstract]:Background and objective: orthotopic liver transplantation (orthotopic liver transplantation,OLT) should be the most ideal treatment for various end-stage liver diseases in theory, but it has some limitations. Compared with orthotopic liver transplantation, hepatocyte transplantation has the advantages of simple operation, strong reproducibility, low immunogenicity of donor liver cells, low immunogenicity, little influence on recipients after transplantation failure or immune rejection. In addition, hepatocytes can also be genetically modified in vitro, which is a good gene therapy vector. In recent years, hepatocyte transplantation has made great progress in both theory and technology, and it has the potential to become an alternative therapy for OLT in many aspects. Human bone marrow derived hematopoietic stem cells (hemtopoietic stem cell,HSCs) can be differentiated into bone, cartilage, fat and muscle cells. It has been found that bone marrow stem cells can also differentiate into hepatocyte-like cells under suitable conditions. At present, there is an international report on the induction and differentiation of adult bone marrow stem cells into hepatocytes, but there is no related report at home and abroad, and there is no relevant report at home and abroad on the cryopreservation methods of inducing differentiated cells. The main objectives of this study were: 1) to induce the differentiation of human bone marrow derived stem cells into hepatocytes in vitro, 2) to identify the morphology and function of the differentiated hepatocytes. 3) to observe the functional changes of differentiated hepatocytes after cryopreservation and resuscitation. Methods: 1. Human bone marrow stem cells were cultured in vitro with hepatocyte growth factor (hepatocyte growth factor,HGF) and leukocyte inhibitory factor (Leukocyte inhibitory factor,LIF). Fibroblast growth factor (Gibroblast growth factor,FGF et al.
【學(xué)位授予單位】:中國協(xié)和醫(yī)科大學(xué)
【學(xué)位級別】:博士
【學(xué)位授予年份】:2005
【分類號】:R329.2
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