Objective To investigate the effects of monocyte chemoattractant protein-1 (MCP-1) on the migration of neural stem cells in vivo. Methods The brain injured rat model was established with cortical micro-injection of lipopolysaccharide in Sprague-Dawley rats. The tissue of brain was immunohistochemistrically stained to detect the expression of MCP-1 and nestin 3 d, 5 d, and 7 d after modeling. Results The expression of MCP-1 increased, and reached a peak 5 d after modeling. The nestin-positive cells was found in the lipopolysaccharide injected area 7 d after modeling. Conclusion MCP-1 may induce the endogenous neural stem cells migrate to lipopolysaccharide injection area in vivo.
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