Aim To observe the effects of B7.1 gene expression on proliferation of hepatocarcinoma cells and on changes in cytotoxic activity of induced CTL.

• 目的观察B7.；1基因表达对肝癌细胞增殖特性的影响及诱发杀伤性T淋巴细胞(CTL)细胞毒活性的变化。