期刊
CELLULAR SIGNALLING
卷 97, 期 -, 页码 -出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.cellsig.2022.110390
关键词
HIF1A-AS2; Cervical cancer; Human papillomavirus; Apoptosis
类别
资金
- National Natural Science Foundation of China [81972755, 81672588]
- Natural Sci-ence Foundation of Guangdong Province [2020A1515011278]
- Innovative Entrepreneurial Training Plan Program
This study identified that HIF1A-AS2 is significantly increased in cervical cancer and plays a role in promoting cell proliferation, migration, invasion, and suppressing apoptosis through regulation of the HPV16 E6-mediated P53/caspase 9/caspase 3 pathway. This suggests that HIF1A-AS2 may serve as a prognostic factor and contribute to the development and treatment of cervical cancer.
Background: Plentiful evidence proves that lncRNAs play a crucial role in tumor development. However, the function and mechanism that were mediated by lncRNA HIF1A-AS2 in cervical cancer remain unclear.Methods: The lncRNA HIF1A-AS2 was identified via high-throughput microarray analysis of three HPV 16-positive cervical squamous cell carcinoma (CSCC) samples and three HPV-negative normal controls. The expression of HIF1A-AS2 was detected by qRT-PCR in clinical tissues and cancer cells. In vitro and in vivo assays were performed through downregulation or upregulation of HIF1A-AS2. The possible mechanisms of HIF1A-AS2 in cervical cancer cells were explored by western blot, flow cytometric analysis and rescue assays.Results: HIF1A-AS2 was significantly increased in cervical cancer tissue, and in the HPV- positive cervical cancer cells. Further investigation showed that the inhibition of HIF1A-AS2 suppressed cell proliferation, migration, invasion, and induced apoptosis, while up-regulation of HIF1A-AS2 revealed opposite results. In terms of mechanism, we found that HIF1A-AS2 was mediated by HPV16 E6 and regulated cell apoptosis via P53/caspase 9/caspase 3 axis. Conclusion: Our findings demonstrate that HIF1A-AS2 functions as a carcinogenic lncRNA that promotes tumor development, and serves as a candidate prognostic factor, which may contribute to the treatment of cervical cancer.
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