CD276 (B7H3) improve cancer stem cells formation in cervical carcinoma cell lines

被引:14
作者
Shi, Jianfeng [1 ]
Zhao, Haishan [2 ]
Lian, Huan [1 ]
Ke, Linnan [1 ]
Zhao, Lei [1 ]
Wang, Chunren [1 ]
Han, Qianqian [1 ]
机构
[1] Chinese Natl Inst Food & Drug Control, Dept Med Devices, Div Biomat, Beijing 102629, Peoples R China
[2] Guangdong Prov Peoples Hosp, Guangdong Cardiovasc Inst, Guangdong Prov Key Lab South China Struct Heart D, Guangzhou, Peoples R China
基金
国家重点研发计划;
关键词
CD276; cancer stem cells (CSCs); cervical carcinoma; HeLa cells; sphere formation cells; SELF-RENEWAL; B7-H3; EXPRESSION; RESISTANCE;
D O I
10.21037/tcr-19-2910
中图分类号
R73 [肿瘤学];
学科分类号
100214 ;
摘要
Background: Cancer stem cells (CSCs) have been considered as a potential therapeutic target for cervical carcinoma. CD 276 is a well-known immune check point molecular, but its relationship with cervical CSCs was still unclear. Methods: HeLa cell lines were obtained as cervical carcinoma in vitro model. HeLa cell Sphere formation culture was performed and CD276, OCT4 and SOX2 expression were determined by RT-qPCR. Transiently transfection and siRNA interference were used to modify CD276 expression. HeLa cell colony has been counted and cell proliferation was assessed by MTT assay. The relationship between CD276 and chemotherapy resistance of HeLa cell were evaluated by cisplatin treatment. Additionally, the mice model of xenograft tumor was established and CD276's function was evaluated in vivo. Results: Here, we demonstrate that the expression of CD276 is positively correlated with the amount of sphere-forming cells in HeLa cell lines. Overexpression of CD276 causes the inhibition of HeLa sphere formation, colony formation and cell viability. Meanwhile, the downregulation of CD276 leads to the other way. We also demonstrate that CD276 contributes to the chemotherapy resistance in the cell line. Furthermore, we verify the CD276's function on HeLa xenotransplantation mice model. Conclusions: These results suggest that CD276 elevates the self-renewal capacity of HeLa CSCs.
引用
收藏
页码:65 / 72
页数:8
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