期刊
MOLECULAR AND CELLULAR BIOCHEMISTRY
卷 475, 期 1-2, 页码 79-91出版社
SPRINGER
DOI: 10.1007/s11010-020-03861-0
关键词
Cisplatin; YAP1; PD-L1; Immunosuppressive microenvironment; Hepatocellular carcinoma
类别
资金
- National Natural Science Foundation of China [81873112]
- Project of Natural Fund of Hebei Province [H2017423011]
- Talent Project Training Funding Project of Hebei Province [A201902015]
- Hundred Outstanding Innovative Talents Support Program of Universities in Hebei Province [SLRC2019043]
- Hebei Key Laboratory of Integrative Medicine on Liver Kidney Patterns [A201904]
Hepatocellular carcinoma (HCC) is one of the most lethal malignancies worldwide. However, the immune tolerance limits the effect of chemotherapeutic drugs. Therefore, the mechanism of cisplatin in promoting PD-L1 expression by YAP1 was investigated in the present study, and we found that cisplatin increased the expression level of YAP1 in the mouse liver with H22 cells. Meanwhile, cisplatin improved the expression level of PD-L1, IL-1 beta and CCL2 in the tumor microenvironment. Further, cisplatin also enhanced the expression level of YAP1 in shYAP1HepG2215 cells. The expression of PD-L1 was decreased by Verteporfin, YAP1 inhibitor, during the treatment of DEN/TCPOBOP-induced liver cancer in C57BL/6 mice. These results suggested that cisplatin could deteriorate the immunosuppressive microenvironment through increasing PD-L1, CCL2, IL-1 beta by upregulated YAP1 expression. Therefore, the study suggested that YAP1 blockade destroyed the immunosuppressive microenvironment of cancer to improve the effect of chemotherapy in HCC.
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