肝细胞生长因子促进猕猴胚胎干细胞来源的神经前体细胞的增殖
文献类型:期刊论文
作者 | 李荣荣1,2; 陈洪伟1,2; 陈栋梁1,2; 王淑芬1,2; 张敬1,2; 陈锐3; 季维智[*]1 |
刊名 | 动物学研究
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出版日期 | 2008 |
卷号 | 29期号:5页码:518—528 |
关键词 | 猕猴胚胎干细胞 神经前体细胞 HGF |
其他题名 | Hepatocyte Growth Factor Promotes the Proliferation of the Neural Progenitors Derived from Rhesus Monkey Embryonic Stem Cells |
通讯作者 | wji@mail.kiz.ac.cn |
合作状况 | 其它 |
中文摘要 | 肝细胞牛长因子(hepatoeyte growth factor,HGF)足一个多效应因子,在神经系统中具有重要作用.早前的研究发现采用HGF和G5 supplement结合EB(embryoid body)法可诱导猕猴胍胎干细胞(rhesus embryonic stem cells,rESCs)定向分化成高纯度的可移植的神经前体细胞(neural progenitors),但对于HGF在整个诱导分化过程中的具体作用及机制还不清楚.本研究改进先前研究体系,采用单层培养法,同时添加HGF和bFGF(basic fibroblast growth factor,碱性成纤维细胞生长因子)诱导rESCs在两周内定向分化为高纯度[(81.66±4.37)%]的神经前体细胞,并且单独添加HGF或bFGF以及两者都没有添加的条件下也得到了相似比例的神经前体细胞,表明外源性的HGF在诱导rESCs向神经前体细胞转变的过程中对十神经细胞命运的决定并不起作用;进一步研究发现HGF能有效地促进神经前体细胞的增殖,并且与bFGF具有协同作用.总之,本研究建立了一种更为简单的诱导rESCs分化成神经细胞的方法,发现外源性的HGF在rESCs向神经前体细胞分化的过程中并没有神经诱导的作用,但能与bFGF协同作用促进rESCs来源的神经前体细胞的增殖. |
英文摘要 | Hepatocyte growth factor (HGF) is a pleiotropic factor, which plays an important role in the nervous system. Previously, we had produced highly enriched (88.3 ±8.1%) transplantable populations of neural progenitors from rhesus monkey embryonic stem cells (rESCs) using an embryoid body (EB) system containing HGF and G5 supplement. However, the exact role of HGF in the neural differentiation process as well as the mechanism of HGF is not clear. Here, on the basis of the ameliorated differentiation system, we efficiently produced populations of neural progenitors (81.66 ± 4.37%) from rESCs in an adherent monoculture system containing HGF and basic fibroblast growth factor (bFGF) within two weeks. Moreover, we obtained similar results with the systems containing either HGF or bFGF alone, or neither of them, which implied that extrinsic HGF can not determine the neural fate of the rESCs in the differentiation process. Further results suggested HGF with bFGF synergistically promoted the proliferation of the neural progenitors derived from rESCs. In conclusion, through this study, a much simpler method of inducing rESCs differentiation towards neural cells has been established and extrinsic HGF did not function in neural induction from rESCs to neural progenitor cells. However, HGF with bFGF synergistically promoted the proliferation of the neural progenitors derived from rESCs. |
收录类别 | 其他 |
资助信息 | 973计划(2006CB701505,2007CB947701);中科院创新工程试点经费(KSCX2-YW-R-47);国家自然科学基金(30570906,30700159,30700425). |
语种 | 中文 |
公开日期 | 2010-08-04 |
源URL | [http://159.226.149.42:8088/handle/152453/917] ![]() |
专题 | 昆明动物研究所_生殖与发育生物学 |
作者单位 | 1.中国科学院昆明动物研究所云南省动物生殖生物学重点实验室,云南 昆明 650223 2.中国科学院研究生院,北京100049 3.中国科学技术大学,合肥 230000 |
推荐引用方式 GB/T 7714 | 李荣荣,陈洪伟,陈栋梁,等. 肝细胞生长因子促进猕猴胚胎干细胞来源的神经前体细胞的增殖[J]. 动物学研究,2008,29(5):518—528. |
APA | 李荣荣.,陈洪伟.,陈栋梁.,王淑芬.,张敬.,...&季维智[*].(2008).肝细胞生长因子促进猕猴胚胎干细胞来源的神经前体细胞的增殖.动物学研究,29(5),518—528. |
MLA | 李荣荣,et al."肝细胞生长因子促进猕猴胚胎干细胞来源的神经前体细胞的增殖".动物学研究 29.5(2008):518—528. |
入库方式: OAI收割
来源:昆明动物研究所
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