The in vitro and in vivo levels of mIL-12 and the in vivo activity of cytotoxic T lymphocyte(CTL)were examined by ELISA assay and modified LDH release assay,respectively.

• ELISA法检测细胞上清及小鼠血液中mIL-12水平,LDH释放法检测小鼠体内细胞毒性T淋巴细胞(CTL)杀伤活性。