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首页> 外文期刊>Cell biology international. >Stromal derived factor-1 in hippocampus radial glial cells in vitro regulates the migration of neural progenitor cells
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Stromal derived factor-1 in hippocampus radial glial cells in vitro regulates the migration of neural progenitor cells

机译:体外海马星形胶质细胞基质基质衍生因子-1调节神经祖细胞的迁移。

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摘要

Stromal derived factor-1 (SDF-1), a critical chemokine that promotes cell homing to target tissues, was presumed to be involved in the traumatic brain injury cortex. In this study, we determined the expression of SDF-1 in the hippocampus after transection of the fimbria fornix (FF). Realtime PCR and ELISA showed that mRNA transcription and SDF-1 proteins increased significantly after FF transection. In vitro, the expression of SDF-1 in radial glial cells (RGCs) incubated with deafferented hippocampus extracts was observed to be greater than in those incubated with normal hippocampus extracts. The co-culture of neural progenitor cells (NPCs) and RGCs indicated that the extracts of deafferented hippocampus induced more NPCs migrating toward RGCs than the normal extracts. Suppression or overexpression of SDF-1 in RGCs markedly either decreased or increased, respectively, the migration of NPCs. These results suggest that after FF transection, SDF-1 in the deafferented hippocampus was upregulated and might play an important role in RGC induction of NPC migration; therefore, SDF-1 is a target for additional research for determining new therapy for brain injuries.
机译:基质基质衍生因子-1(SDF-1)是一种促进细胞归巢至目标组织的关键趋化因子,据推测与创伤性脑损伤皮层有关。在这项研究中,我们确定了横断纤维膜穹隆(FF)后海马中SDF-1的表达。实时荧光定量PCR和ELISA显示FF横切后,mRNA转录和SDF-1蛋白显着增加。在体外,观察到与去力低的海马提取物一起孵育的放射状神经胶质细胞(RGC)中SDF-1的表达要高于与正常海马提取物一起孵育的SDF-1的表达。神经祖细胞(NPC)和RGC的共培养表明,脱去力的海马提取物比正常提取物诱导更多的NPC向RGC迁移。 RGC中SDF-1的抑制或过表达分别明显减少或增加了NPC的迁移。这些结果表明,FF横切后,去力异常的海马中的SDF-1上调,可能在RGC诱导NPC迁移中起重要作用。因此,SDF-1是用于确定脑损伤新疗法的其他研究的目标。

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