METHODS Using the culture of human transformed keratinocyte cell line COLO?16 cells as a model, viable cell count, ???3H?TdR uptake, cytokine bioactivity assay, electron microscope examination and ABC method were applied in this study.

• 方法以人转化型角朊细胞株COLO－16细胞为模型，采用活细胞计数、3H－TdR参入法、细胞因子生物活性检测、电镜及ABC法进行研究。