Purpose:To investigate the proliferation of cytotoxic T lymphocytes(CTL) induced by superantigen SEA and their anti-tumor effects on EJ bladder carcinoma cells in vitro.

• 目的：研究超抗原金黄色葡萄球菌肠毒素A(SEA)对淋巴细胞激活、增殖的作用及对E-J膀胱肿瘤细胞的抑癌效应。