Journal of Jilin University(Medicine Edition) ›› 2020, Vol. 46 ›› Issue (03): 523-529.doi: 10.13481/j.1671-587x.20200316

• Research in basic medicine • Previous Articles    

Inhibitory effect of disulfiram combined with cisplatin on triple negative breast cancer MDA-MB-231 cells and its mechanism

WEN Qingyi, JIAO Miaomiao, XIE Xiao, PEN Jingyu, DONG Fengge, WEI Xue, YANG Ming   

  1. Department of Breast Surgery, First Hospital, Jilin University, Changchun 130021, China
  • Received:2019-08-28 Published:2020-06-11

Abstract: Objective: To observe the inhibitory effect of combination of disulfiram (DSF) and cisplatin (CDDP) on the proliferation of triple-negative breast cancer (TNBC) MDA-MB-231 cells, and to explore its possible mechanism. Methods: The MDA-MB-231 cells in the logarithmic phase were divided into blank control group, DSF group, CDDP group and combination groups (60μmol·L-1 CDDP+1,2 and 4μmol·L-1DSF). MTT method was used to detect the survival rates of the MDA-MB-231 cells in various groups and flow cytometry was used to detect the apoptotic rates of the MDA-MB-231 cells in various groups, flow cytometry was used to detect the level of active oxygen(ROS)in the MDA-MB-231 cells in various groups, and Inductively Coupled Plasma-MassSpectrometry (ICP-MS) was used to detect the levels of Pt in the MDA-MB-231 cells in various groups. Results: The MTT method and flow cytometry results showed that after treated for 72 h, compared with 60μmol·L-1 CDDP group,the survival rates of the MDA-MB-231 cells in combination 1 group (60μmol·L-1CDDP+1μmol·L-1DSF), combination 2 group (60μmol·L-1CDDP+2μmol·L-1DSF) and combination 3 group (60μmol·L-1CDDP+4μmol·L-1DSF) were decreased(P<0.05). After treated for 24 h, compared with 60μ mol·L-1CDDP group and 2μ mol·L-1DSF group, the apoptotic rate of the MDA-MB-231 cells in combination group (60μmol·L-1CDDP+2μmol·L-1 DSF) was increased (P<0.05). Compared with CDDP group, the level of ROS in the MDA-MB-231 cells in combination group(60μmol·L-1CDDP+2μmol·L-1 DSF) was increased (P<0.05).The ICP-MS results showed that compared with CDDP group, the level of Pt in the MDA-MB-231 cells in combination group(20μmol·L-1CDDP+0.625μmol·L-1 DSF) was increased (P<0.05). Conclusion: The combination of DSF and CDDP can significantly inhibit the proliferation of MDA-MB-231 cells,and its possible mechanism may be related to inhibiting the growth of tumor cells by increasing the ROS level and Pt content in the MDA-MB-231 cells.

Key words: triple-negative breast cancer, MDA-MB-231 cells, cisplatin, disulfiram, reactive oxygen species

CLC Number: 

  • R737.9