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AIM To study the activation of CTLs against gastric cancer cells induced by FasL/B7-l (FB-ll)genes modified tumor cells, and to explore whether co-expression of FasL and B7-1 in SGC-7901 tumor cells could initiate an synergistic antitumor effect. METHODS FasL and B7-1 genes were transfected into human SGC-7901 gastric cancer cells with adenovirus vectors. The positive clones were selected by G418...
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