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Secretory factors of bone marrow stromal cells promoting differentiation and survival of PC12 cells
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- Author:
- No author available
- Journal Title:
- CHINESE JOURNAL OF NEUROMEDICINE
- Issue:
- 1
- DOI:
- 10.3760/cma.j.issn.1671-8925.2005.01.006
- Key Word:
- 骨髓细胞;PC12细胞;细胞因子;神经生长因子
Abstract： 目的体外检测骨髓基质细胞分泌物对PCI2细胞的活性作用,并探讨其产生的可能机制.方法收集培养至第4代第7天的SD大鼠MSCs培养上清,按不同的体积百分比浓度加入到PC12细胞培养体系中,在倒置相差显微镜下观察1 d和4 d的细胞形态学改变;用丙二酸钠对PC12细胞造成氧化应激损伤,同时加入不同体积百分比浓度的MSCs培养上清,采用MTT法测定24 h后的细胞活性.结果有突细胞/总细胞数、最长突起长度随培养时间及MSC培养上清体积百分比的增加而增加;PC12细胞氧化损伤后,加入一定浓度MSC培养上清组的PC12细胞活性较未加入组增高,差异有显著性.结论MSCs能够合成和分泌具有神经营养活性的物质,该物质能诱导PC12细胞分化并减轻氧化应激对PC12细胞的损伤.
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