Abstract
Objective To construct the short hairpin RNA recombinant plasmids targeting mdr1 gene which expresses highly in ovarian cancer resistance strain SKOV3/TAXOL to silence endogenefic mdr1 gene expression and investigate the role of mdr1 gene in the development of resistant ovarian cancer. Methods The pGPU6/GFP/Neo-mdr1 were constructed by gene clone technology. The influence on proliferation and apoptosis were investigated by CCK-8 in SKOV3/TAXOL after transfected pGPU6/GFP/Neo-mdr1. Results The expression against mdr1 proteins were inhibited by pGPU6/GFP/Neo-mdr1. The cell proliferation were inhibited after transfected pGPU6/GFP/Neo-mdr1 by CCK-8. The apoptosis were observed in DAB experiments and the apoptosis rate increased. Conclusion mdr1 plays an important role in proliferation of resistant ovarian cancer and the short hairpin RNA of mdr1 can efficiently suppress mdr1 expression and enhance the apoptosis in SKOV3/ATAXOL. Key words: Ovarian neoplasms; RNA interfering; Cell line, tumor; Genes, mdr1; Hyperplasia
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