• Department of General Surgery, West China Hospital, Sichuan University, Chengdu 610041, China;
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ObjectiveTo construct the recombinant adenovirus vector carrying antisense multidrug resistanceassociated protein (MRP) and transfect the human drugresistant hepatocellular carcinoma cell line(SMMC7721/ADM). MethodsThe fragment of MRP gene encoding 5′region was cloned reversely into the shuttle plasmid pAdTrackCMV, with the resultant plasmid and the backbone plasmid pAdEasy1,the homologous recombination took place in the bacteria and the recombinant adenoviral plasmid was generated. The adenoviruses were packaged and amplified in 293 cells. Then the cell line of SMMC7721/ADM was transfected with the resultant adenoviruses.ResultsThe recombinant adenovirus vector carrying antisense MRP was constructed successfully. The viral titer was 2.5×109 efu/ml, and more than 90% SMMC7721/ADM cells could be transfected when the multiplicity of infection(MOI) was 100. ConclusionThe recombinant adenovirus vector constructed by us could introduce the antisense MRP into the human drugresistant hepatocellular cell line effectively, which would provide experimental basis for the mechanisms and reversal methods of the multidrug resistance in human hepatocellular carcinoma.

Citation: CHEN Lin,GOU Xinghua,YAN Lnan,ZHAO Yongheng,HAN Lei,LI Dehua,HU Haiyang,ZHAO Lanying. Construction of the Recombinant Adenovirus Carrying Antisense Multidrug ResistanceAssociated Protein and the Study of Its Application. CHINESE JOURNAL OF BASES AND CLINICS IN GENERAL SURGERY, 2003, 10(2): 117-120. doi: Copy