碱性成纤维细胞生长因子-壳聚糖载体诱导神经干细胞分化及与肌细胞的共培养
发布时间:2018-07-09 17:57
本文选题:成纤维细胞生长因子 + 神经元 ; 参考:《中国组织工程研究》2017年06期
【摘要】:背景:神经干细胞具有自我更新和多向分化的潜能,高比例诱导其向神经元分化具有很大的应用前景。目的:探讨碱性成纤维细胞生长因子-壳聚糖载体体外对神经干细胞向神经元分化的影响,及分化的神经元与肌细胞共培养是否能形成突触样联系。方法:纯化后的神经干细胞分别与单纯壳聚糖、可溶性碱性成纤维细胞生长因子及碱性成纤维细胞生长因子-壳聚糖载体共培养。诱导7 d后,通过β-tubulinⅢ染色观察向神经元的分化;通过β-tubulinⅢ和Cha T染色观察向胆碱能神经元的分化;通过β-tubulinⅢ和MHC染色观察和肌细胞之间的突触联系。结果与结论:碱性成纤维细胞生长因子-壳聚糖载体组,分化形成神经元的比例是74%,显著高于其他2组,分化的神经元与共培养的肌细胞能形成突触样联系。提示碱性成纤维细胞生长因子-壳聚糖载体体外能够促进神经干细胞的分化,且分化形成的神经元能与共培养的肌细胞形成突触样联系。
[Abstract]:Background: neural stem cells have the potential of self-renewal and multi-differentiation. Aim: to investigate the effect of basic fibroblast growth factor-chitosan carrier on neural stem cell differentiation into neurons in vitro and whether co-culture of differentiated neurons and myocytes can form synaptic connections. Methods: purified neural stem cells were co-cultured with chitosan, soluble basic fibroblast growth factor and basic fibroblast growth factor-chitosan carrier respectively. After 7 days of induction, the differentiation to neurons was observed by 尾 -tubulin 鈪,
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