Objective To determine the differences of human immortal keratinocyte line HaCaT with or without lentivius-mediated CCL20 over-expression by proteomic analysis in order to investigate the cause of altered growth characteristics and potential threat of tumorigenicity in the seed cells for gene-modified tissue engineering.Methods Lentiviral vector(pHSER-CCL20-shRNA-GFP)-infected HaCaT cells with significant changes in growth characteristics and uninfected HaCaT cells were chosen as experimental and control ce...