Objective To explore effect of inhibitory synergy and chemosensitivity of recombinant adenovirus phosphatase and tensin homologue deleted chromatosome10(PTEN) on small lung cancer and its possible mechanisms.Methods Recombinant adenovirus Ad-PTEN was constructed and transfected into the human embryonic kidney 293(QBI-293A) cells.The adenovirus completed the amplification in QBI-293A cells and the titration was detected.The human pulmonary carcinoma cell line NCI-H446 was infected by Ad-PTEN and combined wit...