[Studies on IFN-gamma-mediated reversion of CIK killing sensitivity to edited human lung cancer A549 cells].

AIM:To explore IFN-γ-mediated reversion of CIK killing sensitivity to immunoedited lung cancer A549 cells. METHODS:RT-PCR and MTT methods were used to detect the effect on MICA mRNA expression induced by IFN-γ in the edited A549 cells and the change of CIK killing sensitivity to A549 cells,respectively. RESULTS:Low expression of cell surface MICA and low killing sensitivity of CIKs were observed in edited A549 cells. IFN-γ could significantly increase MICA mRNA expression in the edited A549 cells and improve CIK cell cytotoxicity. CONCLUSION:IFN-γ could reverse CIK killing sensitivity to the edited A549 cells by enhancing the MICA mRNA expression.