 Schwann cell activity includes recruitment of macrophages to the injury site.Monocyte chemoattractant protein (MCP-1) plays a role in recruiting monocytes/macrophages.In tellurium-induced demylenation with no axon degeneration, nerve crush with axon degeneration, and nerve transection with axon degeneration an increase in MCP-1 mRNA expression followed by an increase in macrophage recruitment occurred.