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Title: Schwann cells promote neurite outgrowth of dorsal root ganglion neurons through secretion of nerve growth factor
Authors: Hu, Jianguo
Zhou, Jiansheng
Li, Xingwu
Wang, , Fengchao
Lü, Hezuo
Keywords: Dorsal root ganglia
Nerve growth factor
Neurite outgrowth
Schwann cells
Issue Date: Mar-2011
Publisher: NISCAIR-CSIR, India
Abstract: The transplantation of Schwann cells (SCs) could successfully promote axonal regeneration. This is likely to attribute to the adhesion molecules expression and growth factors secretion of SCs. But which factor(s) play a key role has not been precisely studied. In this study, an outgrowth assay using dorsal root ganglia (DRG) neuron-SC co-culture system in vitro was performed. Co-culture of SCs or application of SC-conditioned medium (CM) substantially and significantly increased DRG neurite outgrowth. Further, nerve growth factor and NGF receptor (TrkA) mRNA were highly expressed in Schwann cells and DRG neuron, respectively. The high concentration of NGF protein was detected in SC-CM. When K-252a, a specific inhibitor of NGF receptor was added, DRG neurite outgrowth was significantly decreased in a concentration-dependent manner. These data strongly suggest that SCs play important roles in neurite outgrowth of DRG neurons by secreted NGF
Page(s): 177-182
CC License:  CC Attribution-Noncommercial-No Derivative Works 2.5 India
ISSN: 0975-1009 (Online); 0019-5189 (Print)
Source:IJEB Vol.49(03) [March 2011]

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