The Mechanisms of Tcrolimus on the Migration of Langerhans' Cells / 中华皮肤科杂志

ABSTRACT

Objective To investigate the mechanisms of tacrolimus on the migration of Langerhans′ cells. Methods The concentration of MCP-1 in the cultured supernatants of HaCaT cell treated with tacrolimus was determined by ELISA. The expression level of MCP-1 mRNA in HaCaT cell treated with tacrolimus was studied by RT-PCR method. Results The concentration of MCP-1 in HaCaT cell treated with 625 ～ 5 000 ng/mL of tacrolimus was significantly decreased. The expression level of MCP-1 mRNA was also markedly decreased. Conclusions Tacrolimus may probably decrease the expression of MCP-1 in keratinocytes and suppress the chemotactic ability of Langerhans′ cells precursor and Langerhans′ cells, thus inhibiting or diminishing certain local immunoreaction.