Objective To determine the effect of granulocyte colony-stimulating factor( G-CSF)stimulation on cutaneous wound healing in green fluorescent protein( GFP) chimeric mice and investigate the underlying mechanism. Methods C57 BL /6 mice were exposed to 8. 5 Gy60 Co γ irradiation and then received 5 × 106 bone marrow cells derived from C57 BL /6-EGFP mice through tail vein in 4 h later to establish GFP chimeric mice. The spleen of the chimeric mice was resected in 2 months after irradiation,and then divided in...