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Chinese Pharmacological Bulletin ; (12): 788-792, 2017.
Article in Chinese | WPRIM | ID: wpr-618945

ABSTRACT

Aim To assay the possible targets of adriamycin (ADM), screening ADM resistance related proteins.Methods The drug sensitivity of the cells was analyzed by IC50 assay;RT-PCR assay was used to detect the expression of genes in the cells;CMPK1 protein expression was tested by Western blot assay;the expression of CMPK1 in the cells was decreased by siRNA of CMPK1.Results Data from IC50 assay showed the sensitivity of cells transfected with CMPK1 was increased most(IC50 HEK293-CMPK /IC50 HEK293-Control=0.15, P<0.01), and the expression of CMPK1 protein in ADM resistant breast cells (MCF7/ADM) was lower than that in parent MCF7 cells (P<0.05).When the expression level of CMPK1 was decreased by CMPK1 siRNA, the sensitivity of MCF7 cells to ADM decreased (IC50 MCF7-siCMPK1/IC50MCF7-Control=3.6, P< 0.01), and the sensitivity of MCF7 cells to paclitaxel and gemcitabine also decreased.Conclusions CMPK1 was related to the multidrug resistance of cells, and the expression of CMPK1 was positively related to the sensitivity to drugs, which provides the possibility of CMPK1 as a target in the treatment of multidrug resistance.

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