Journal of Jilin University(Medicine Edition) ›› 2019, Vol. 45 ›› Issue (06): 1340-1345.doi: 10.13481/j.1671-587x.20190625

Previous Articles     Next Articles

Inductive effect of daunorubicin on apoptosis of human B-cell lymphoma OCI-LY7 cells and its mechanism

TIAN Pengfei1, CHEN Juanjuan2, YIN Junjie3, LI Bing1, GUO Shan1   

  1. 1. Department of Clinical Laboratory, Xinxiang Central Hospital, Xinxiang City, Henan Province, Xinxiang 453000, China;
    2. Department of Clinical Laboratory, Second Affiliated Hospital, Nanchang University, Nanchang 330006, China;
    3. Department of Hematology, Xinxiang Central Hospital, Xinxiang City, Henan Province, Xinxiang 453000, China
  • Received:2019-06-26 Online:2019-12-05 Published:2019-12-05

Abstract: Objective: To investigate the effect of daunorubicin on the apoptosis of human B-cell lymphoma OCI-LY7 cells and its mechanism,and to elucidate the drug resistance mechanism of daunorubicin in the diffuse large B-cell lymphoma. Methods: The OCI-LY7 cells cultured in vitro were divided into 0,0.1,1.0 and 10.0 mg·L-1 daunorubicin groups.The survival rates of OCI-LY7 cells in various groups were detected by MTT assay,the apoptotic rates of the OCI-LY7 cells in various groups were detected by flow cytometry,and the expression levels of apoptosis-related proteins Bax,cleaved caspase-3, and survivin in the OCI-LY7 cells in various groups were detected by Western blotting method. The follow-up experiments were divided into control group,daunorubicin group,daunorubicin+vector group and daunorubicin+survivin group; the survival rates,the apoptotic rates and the expression levels of apoptosis-related proteins in the OCI-LY7 cells in various groups after overexpression of survivin were detected by the above-mentioned methods. Results: Compared with 0 mg·L-1 group,the survival rates of OCI-LY7 cells and the expression levels of survivin protein in the OCI-LY7 cells in 0.1,1.0 and 10.0 mg·L-1 daunorubicin groups were decreased gradually after treated for 48 h(P<0.05),while the apoptotic rates and the expression levels of Cleaved caspase-3 and Bax proteins in the OCI-LY7 cells were gradually increased (P<0.05). Compared with control group,the survival rate and the expression level of survivin protein in the OCI-LY7 cells in daunorubicin group were significantly decreased(P<0.05),while the apoptotic rate and the expression levels of cleaved caspase-3 and Bax proteins in the OCI-LY7 cells were significantly increased (P<0.05); compared with daunorubicin group,the survival rate and the expression level of survivin protein in the OCI-LY7 cells in daunorubicin+survivin group were significantly increased(P<0.05),while the apoptotic rate and the expression levels of cleaved caspase-3 and Bax protein in the OCI-LY7 cells in daunorubicin+vector group were significantly decreased (P<0.05). Conclusion: Daunorubicin can induce the apoptosis of OCI-LY7 cells,and its mechanism may be related to down-regulation of the expression of survivin protein.

Key words: human B cell lymphoma, daunorubicin, apoptosis, survivin

CLC Number: 

  • R733.4