The mIL 12 in the supernatant was detected by ELISA after the pCmIL 12 was transfected into COS 7 cells.

• p Cm IL - 12在体外转染 COS- 7细胞后 ,经 EL ISA证实有 m IL- 12表达 ,其表达上清能在体外明显增强小鼠 NK细胞活性。