circKIF4A acts as a prognostic factor and mediator to regulate the progression of triple-negative breast cancer
Abstract Background Increasing studies has found that circular RNAs (circRNAs) play vital roles in cancer progression. But the expression profile and function of circRNAs in triple-negative breast cancer (TNBC) are unclear. Methods We used a circRNA microarray to explore the circRNA expression profi...
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doaj-2554cad5aadb4256b5a9007ccb1ca64e2020-11-25T02:11:15ZengBMCMolecular Cancer1476-45982019-02-011811910.1186/s12943-019-0946-xcircKIF4A acts as a prognostic factor and mediator to regulate the progression of triple-negative breast cancerHailin Tang0Xiaojia Huang1Jin Wang2Lu Yang3Yanan Kong4Guanfeng Gao5Lijuan Zhang6Zhe-Sheng Chen7Xiaoming Xie8Department of Breast Oncology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center of Cancer MedicineDepartment of Breast Oncology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center of Cancer MedicineDepartment of Breast Oncology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center of Cancer MedicineDepartment of Breast Oncology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center of Cancer MedicineDepartment of Breast Oncology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center of Cancer MedicineDepartment of Breast Oncology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center of Cancer MedicineDepartment of Breast Oncology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center of Cancer MedicineDepartment of Pharmaceutical Sciences, College of Pharmacy and Health Sciences, St. John’s University, QueensDepartment of Breast Oncology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center of Cancer MedicineAbstract Background Increasing studies has found that circular RNAs (circRNAs) play vital roles in cancer progression. But the expression profile and function of circRNAs in triple-negative breast cancer (TNBC) are unclear. Methods We used a circRNA microarray to explore the circRNA expression profile of TNBC. The expression of the top upregulated circRNA, circKIF4A, was confirmed by qRT-PCR in breast cancer cell lines and tissues. Kaplan-Meier survival analysis was conducted to analyze the clinical impact of circKIF4A on TNBC. A series of experiments was performed to explore the functions of circKIF4A in TNBC progression, such as cell proliferation and migration. We investigated the regulatory effect of circKIF4A on miRNA and its target genes to explore the potential regulatory mechanisms of circKIF4A in TNBC. Results qRT-PCR analyses verified that circKIF4A was significantly upregulated and positively associated with poorer survival of TNBC. The inhibition of circKIF4A suppressed cell proliferation and migration in TNBC. Luciferase reporter assay and RNA immunoprecipitation assay revealed that circKIF4A and KIF4A could bind to miR-375 and that circKIF4A regulated the expression of KIF4A via sponging miR-375. Conclusions The circKIF4A-miR-375-KIF4A axis regulates TNBC progression via the competitive endogenous RNA (ceRNA) mechanism. circKIF4A may therefore serve as a prognostic biomarker and therapeutic target for TNBC.http://link.springer.com/article/10.1186/s12943-019-0946-xCircular RNAsmiR-375KIF4ACompetitive endogenous RNAsTriple negative breast cancer |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Hailin Tang Xiaojia Huang Jin Wang Lu Yang Yanan Kong Guanfeng Gao Lijuan Zhang Zhe-Sheng Chen Xiaoming Xie |
spellingShingle |
Hailin Tang Xiaojia Huang Jin Wang Lu Yang Yanan Kong Guanfeng Gao Lijuan Zhang Zhe-Sheng Chen Xiaoming Xie circKIF4A acts as a prognostic factor and mediator to regulate the progression of triple-negative breast cancer Molecular Cancer Circular RNAs miR-375 KIF4A Competitive endogenous RNAs Triple negative breast cancer |
author_facet |
Hailin Tang Xiaojia Huang Jin Wang Lu Yang Yanan Kong Guanfeng Gao Lijuan Zhang Zhe-Sheng Chen Xiaoming Xie |
author_sort |
Hailin Tang |
title |
circKIF4A acts as a prognostic factor and mediator to regulate the progression of triple-negative breast cancer |
title_short |
circKIF4A acts as a prognostic factor and mediator to regulate the progression of triple-negative breast cancer |
title_full |
circKIF4A acts as a prognostic factor and mediator to regulate the progression of triple-negative breast cancer |
title_fullStr |
circKIF4A acts as a prognostic factor and mediator to regulate the progression of triple-negative breast cancer |
title_full_unstemmed |
circKIF4A acts as a prognostic factor and mediator to regulate the progression of triple-negative breast cancer |
title_sort |
circkif4a acts as a prognostic factor and mediator to regulate the progression of triple-negative breast cancer |
publisher |
BMC |
series |
Molecular Cancer |
issn |
1476-4598 |
publishDate |
2019-02-01 |
description |
Abstract Background Increasing studies has found that circular RNAs (circRNAs) play vital roles in cancer progression. But the expression profile and function of circRNAs in triple-negative breast cancer (TNBC) are unclear. Methods We used a circRNA microarray to explore the circRNA expression profile of TNBC. The expression of the top upregulated circRNA, circKIF4A, was confirmed by qRT-PCR in breast cancer cell lines and tissues. Kaplan-Meier survival analysis was conducted to analyze the clinical impact of circKIF4A on TNBC. A series of experiments was performed to explore the functions of circKIF4A in TNBC progression, such as cell proliferation and migration. We investigated the regulatory effect of circKIF4A on miRNA and its target genes to explore the potential regulatory mechanisms of circKIF4A in TNBC. Results qRT-PCR analyses verified that circKIF4A was significantly upregulated and positively associated with poorer survival of TNBC. The inhibition of circKIF4A suppressed cell proliferation and migration in TNBC. Luciferase reporter assay and RNA immunoprecipitation assay revealed that circKIF4A and KIF4A could bind to miR-375 and that circKIF4A regulated the expression of KIF4A via sponging miR-375. Conclusions The circKIF4A-miR-375-KIF4A axis regulates TNBC progression via the competitive endogenous RNA (ceRNA) mechanism. circKIF4A may therefore serve as a prognostic biomarker and therapeutic target for TNBC. |
topic |
Circular RNAs miR-375 KIF4A Competitive endogenous RNAs Triple negative breast cancer |
url |
http://link.springer.com/article/10.1186/s12943-019-0946-x |
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