Outcomes of Treatment of 32 Cases of Advanced or Relapsed Post-surgery Pulmonary Sarcomatoid Carcinoma

【Abstract】 Objective To construct human protein kinase B (ATK2)， phosphoinositide-dependent kinase 1 (PDK1) and bcl-2-associated death protein (BAD) lentiviral expression vector, and to determine their expressions in 293T cells. Methods Total RNA was extracted from lung cancer tissues. The full-length coding regions of human ATK2, BAD and PDK1 cDNA were amplified via RT-PCR using specific primers, subcloned into PGEM-Teasy and then sequenced for confirmation. The full-length coding sequence was cut out with a specific restriction enzyme digest and subclone into pCDF1-MCS2-EF1-copATK2GFP. The plasmids were transfected into 293T cells using the calcium phosphate method. The over expression of AKT2, BAD and PDK1 were detected by Western blot. Results AKT2, PDK1 and BAD were subcloned into pCDF1-MCS2-EF1-copGFP, with an efficiency of transfection of 100%, 95%, and 90% respectively. The virus titers were 6.7×106 PFU/mL in the supernatant. After infection, the proteins of AKT2, PDK1 and BAD were detected by Western blot. Conclusion The lentivial vector pCDF1-MCS2-EF1-copGFP containing AKT2, BAD and PDK1 were successfully constructed and expressed in 293T cells.