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Che Y, Li Y, Zheng F, Zou K, Li Z, Chen M, Hu S, Tian C, Yu W, Guo W, Luo M, Deng W, Zou L. TRIP4 promotes tumor growth and metastasis and regulates radiosensitivity of cervical cancer by activating MAPK, PI3K/AKT, and hTERT signaling. Cancer Lett 2019; 452:1-13. [PMID: 30905820 DOI: 10.1016/j.canlet.2019.03.017] [Citation(s) in RCA: 58] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2018] [Revised: 03/08/2019] [Accepted: 03/18/2019] [Indexed: 12/11/2022]
Abstract
Thyroid hormone receptor interactor 4 (TRIP4), a subunit of the tetrameric nuclear activating signal co-integrator 1 (ASC-1) complex, exerts pro-tumorigenic effects. The role for TRIP4 in the regulation of cervical cancer growth and radiation resistance is presently unknown. In this study, TRIP4 was found to be highly expressed in cervical cancer cells and tumor tissues. Knockdown of TRIP4 significantly suppressed cervical cancer cell proliferation and epithelial-mesenchymal transition (EMT), accompanied by inactivation of PI3K/AKT and MAPK/ERK signaling. TRIP4 was also found to target hTERT signaling by regulating its binding to the hTERT promoter. Moreover, the knockdown of TRIP4 increased cell sensitivity to radiation, concomitant with downregulation of Rad51 and p-H2AX. We also demonstrated in an in vivo study that the knockdown of TRIP4 effectively suppressed cervical cancer growth and progression in a xenograft tumor model, and these effects were concomitant with the downregulation of p-AKT, p-ERK, p-MEK1/2, MMP-9 and hTERT expression. Immunohistochemical analysis of tumor tissue microarrays showed that TRIP4 overexpression predicted poor prognosis in patients with cervical cancer. Collectively, these results show that TRIP4 plays an essential role in cervical cancer growth and survival.
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Affiliation(s)
- Yilin Che
- The Second Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Yizhuo Li
- Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Guangzhou, China
| | - Fufu Zheng
- The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Kun Zou
- The First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Zongjuan Li
- The Second Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Manyu Chen
- Institute of Cancer Stem Cell, Dalian Medical University, Dalian, China
| | - Sheng Hu
- Institute of Cancer Stem Cell, Dalian Medical University, Dalian, China
| | - Chunfang Tian
- Institute of Cancer Stem Cell, Dalian Medical University, Dalian, China
| | - Wendan Yu
- Institute of Cancer Stem Cell, Dalian Medical University, Dalian, China
| | - Wei Guo
- Institute of Cancer Stem Cell, Dalian Medical University, Dalian, China
| | - Meihua Luo
- The Shude Hospital, Southern Medical University, Foshan, China
| | - Wuguo Deng
- Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Guangzhou, China.
| | - Lijuan Zou
- The Second Affiliated Hospital of Dalian Medical University, Dalian, China.
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Hou C, Wang F, Liu X, Chang G, Wang F, Geng X. Comprehensive Analysis of Interaction Networks of Telomerase Reverse Transcriptase with Multiple Bioinformatic Approaches: Deep Mining the Potential Functions of Telomere and Telomerase. Rejuvenation Res 2017; 20:320-333. [PMID: 28281877 DOI: 10.1089/rej.2016.1909] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Telomerase reverse transcriptase (TERT) is the protein component of telomerase complex. Evidence has accumulated showing that the nontelomeric functions of TERT are independent of telomere elongation. However, the mechanisms governing the interaction between TERT and its target genes are not clearly revealed. The biological functions of TERT are not fully elucidated and have thus far been underestimated. To further explore these functions, we investigated TERT interaction networks using multiple bioinformatic databases, including BioGRID, STRING, DAVID, GeneCards, GeneMANIA, PANTHER, miRWalk, mirTarBase, miRNet, miRDB, and TargetScan. In addition, network diagrams were built using Cytoscape software. As competing endogenous RNAs (ceRNAs) are endogenous transcripts that compete for the binding of microRNAs (miRNAs) by using shared miRNA recognition elements, they are involved in creating widespread regulatory networks. Therefore, the ceRNA regulatory networks of TERT were also investigated in this study. Interestingly, we found that the three genes PABPC1, SLC7A11, and TP53 were present in both TERT interaction networks and ceRNAs target genes. It was predicted that TERT might play nontelomeric roles in the generation or development of some rare diseases, such as Rift Valley fever and dyscalculia. Thus, our data will help to decipher the interaction networks of TERT and reveal the unknown functions of telomerase in cancer and aging-related diseases.
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Affiliation(s)
- Chunyu Hou
- 1 Department of Biochemistry and Molecular Biology, Tianjin Medical University , Tianjin, China .,2 Key Laboratory of Cancer Prevention and Therapy, Tianjin Medical University Cancer Institute and Hospital , Tianjin, China
| | - Fei Wang
- 3 Department of Neurology, Tianjin Medical University , Tianjin, China
| | - Xuewen Liu
- 1 Department of Biochemistry and Molecular Biology, Tianjin Medical University , Tianjin, China
| | - Guangming Chang
- 4 Department of Clinical Laboratory, General Hospital, Tianjin Medical University , Tianjin, China
| | - Feng Wang
- 5 Department of Genetics, Tianjin Medical University , Tianjin, China
| | - Xin Geng
- 1 Department of Biochemistry and Molecular Biology, Tianjin Medical University , Tianjin, China .,6 Tianjin Key Laboratory of Cellular and Molecular Immunology, Tianjin Medical University , Tianjin, China .,7 Key Laboratory of Educational Ministry of China, Tianjin Medical University , Tianjin, China
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Zhou N, Fei D, Zong S, Zhang M, Yue Y. MicroRNA-138 inhibits proliferation, migration and invasion through targeting hTERT in cervical cancer. Oncol Lett 2016; 12:3633-3639. [PMID: 27900047 DOI: 10.3892/ol.2016.5038] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2015] [Accepted: 06/29/2016] [Indexed: 01/07/2023] Open
Abstract
A growing body of evidence suggests that microRNA-138 (miR-138) functions as a tumor suppressor, and is involved in tumor initiation, development and metastasis in certain types of human cancers. However, the function and underlying molecular mechanism of miR-138 in cervical cancer remains unclear. Therefore, the purpose of the present study was to investigate the clinical significance of miR-138 expression in cervical cancer, and to evaluate its role and underlying mechanisms in cervical cancer. The present study indicated that miR-138 expression was significantly downregulated in cervical cancer tissues and cell lines, and that the low miR-138 expression was negatively associated with advanced FIGO stage and lymph node metastasis (P<0.01). Functional analyses indicated that the overexpression of miR-138 in cervical cancer cells inhibited cell proliferation, migration and invasion, induced cell apoptosis in vitro, and suppressed tumor growth in a nude mice model. Luciferase reporter assays confirmed that human telomerase reverse transcriptase was a novel target gene of miR-138. The findings of the present study suggested that miR-138 could be a potential candidate for cervical cancer therapeutics.
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Affiliation(s)
- Na Zhou
- Department of Obstetrics and Gynecology, The First Hospital of Jilin University, Changchun, Jilin 130021, P.R. China
| | - Dan Fei
- Department of Ultrasonography, China-Japan Union Hospital of Jilin University, Changchun, Jilin 130033, P.R. China
| | - Shan Zong
- Department of Obstetrics and Gynecology, The First Hospital of Jilin University, Changchun, Jilin 130021, P.R. China
| | - Mingyue Zhang
- Department of Obstetrics and Gynecology, The First Hospital of Jilin University, Changchun, Jilin 130021, P.R. China
| | - Ying Yue
- Department of Obstetrics and Gynecology, The First Hospital of Jilin University, Changchun, Jilin 130021, P.R. China
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Zhao Q, Zhai YX, Liu HQ, Shi YA, Li XB. MicroRNA-491-5p suppresses cervical cancer cell growth by targeting hTERT. Oncol Rep 2015; 34:979-86. [PMID: 26034994 DOI: 10.3892/or.2015.4013] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2015] [Accepted: 04/02/2015] [Indexed: 11/05/2022] Open
Abstract
MicroRNAs (miRNAs) are small non-coding RNAs that have been shown to regulate a variety of biological processes by targeting messenger RNA. MicroRNA-491-5p (miR-491-5p), an important miRNA, has been demonstrated to be involved in the processes of initiation and progression in several tumors. However, the precise biological function of miR-491-5p and its molecular mechanism in cervical cancer cells remain elusive. The present study was carried out to investigate the clinical significance and prognostic value of miR-491-5p expression in cervical cancer, and to evaluate the role of miR-491-5p and the underlying molecular mechanisms involved in cervical cancer. The results showed that miR-491-5p expression was significantly downregulated in cervical cancer tissues when compared with the corresponding adjacent normal tissues (P<0.001), and the value was negatively associated with advanced International Federation of Gynecology and Obstetrics (FIGO) stage, high histological grading and lymph node metastasis (P<0.01). The enforced expression of miR-491-5p in cervical cancer cells significantly inhibited proliferation, migration and invasion, induced cell apoptosis, and suppressed the tumor growth of the mouse model of HeLa cells. In addition, the dual-luciferase reporter assay revealed that human telomerase reverse transcriptase (hTERT) was identified as a novel target gene of miR-491-5p. Notably, it was found that miR-491-5p regulated the PI3K/AKT signaling pathway. These results suggested that targeting miR-491-5p is a strategy for blocking the development of cervical cancer.
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Affiliation(s)
- Qiang Zhao
- Department of Pediatric Surgery, The First Hospital, Jilin University, Chaoyang, Changchun, Jilin 130021, P.R. China
| | - Ying-Xian Zhai
- Key Laboratory of Pathobiology, Ministry of Education, College of Basic Medical Sciences, Jilin University, Chaoyang, Changchun, Jilin 130021, P.R. China
| | - Huan-Qiu Liu
- Department of Anesthesiology, The First Hospital, Jilin University, Chaoyang, Changchun, Jilin 130021, P.R. China
| | - Ying-Ai Shi
- Key Laboratory of Pathobiology, Ministry of Education, College of Basic Medical Sciences, Jilin University, Chaoyang, Changchun, Jilin 130021, P.R. China
| | - Xin-Bai Li
- Department of Anesthesiology, The First Hospital, Jilin University, Chaoyang, Changchun, Jilin 130021, P.R. China
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Chen L, Lü MH, Zhang D, Hao NB, Fan YH, Wu YY, Wang SM, Xie R, Fang DC, Zhang H, Hu CJ, Yang SM. miR-1207-5p and miR-1266 suppress gastric cancer growth and invasion by targeting telomerase reverse transcriptase. Cell Death Dis 2014; 5:e1034. [PMID: 24481448 PMCID: PMC4040688 DOI: 10.1038/cddis.2013.553] [Citation(s) in RCA: 109] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2013] [Revised: 11/25/2013] [Accepted: 12/12/2013] [Indexed: 12/31/2022]
Abstract
hTERT is the catalytic subunit of the telomerase complex. Elevated expression of hTERT is associated with the expansion and metastasis of gastric tumor. In this study, we aimed to identify novel tumor suppressor miRNAs that restrain hTERT expression. We began our screen for hTERT-targeting miRNAs with a miRNA microarray. miRNA candidates were further filtered by bioinformatic analysis, general expression pattern in different cell lines, gain-of-function effects on hTERT protein and the potential of these effects to suppress hTERT 3′ untranslated region (3′UTR) luciferase activity. The clinical relevance of two miRNAs (miR-1207-5p and miR-1266) was evaluated by real-time RT-PCR. The effects of these miRNAs on cell growth, cell cycle and invasion of gastric cancer cells were measured with CCK-8, flow cytometry and transwell assays. Finally, the ability of these miRNAs to suppress the transplanted tumors was also investigated. Fourteen miRNAs were identified using a combination of bioinformatics and miRNA microarray analysis. Of these fourteen miRNAs, nine were expressed at significantly lower levels in hTERT-positive cell lines compared with hTERT-negative cell lines and five could downregulate hTERT protein expression. Only miR-1207-5p and miR-1266 interacted with the 3′ UTR of hTERT and the expression levels of these two miRNAs were significantly decreased in gastric cancer tissues. These two miRNAs also inhibited gastric tumor growth in vitro and in vivo. Altogether, miR-1207-5p and miR-1266 were determined to be hTERT suppressors in gastric cancer, and the delivery of these two miRNAs represents a novel therapeutic strategy for gastric cancer treatment.
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Affiliation(s)
- L Chen
- Department of Gastroenterology, Xinqiao Hospital, Third Military Medical University, Chongqing 400037, China
| | - M-H Lü
- Department of Gastroenterology, Xinqiao Hospital, Third Military Medical University, Chongqing 400037, China
| | - D Zhang
- Department of Gastroenterology, Xinqiao Hospital, Third Military Medical University, Chongqing 400037, China
| | - N-B Hao
- Department of Gastroenterology, Xinqiao Hospital, Third Military Medical University, Chongqing 400037, China
| | - Y-H Fan
- Department of Gastroenterology, Xinqiao Hospital, Third Military Medical University, Chongqing 400037, China
| | - Y-Y Wu
- Department of Gastroenterology, Xinqiao Hospital, Third Military Medical University, Chongqing 400037, China
| | - S-M Wang
- Department of Gastroenterology, Xinqiao Hospital, Third Military Medical University, Chongqing 400037, China
| | - R Xie
- Department of Gastroenterology, Xinqiao Hospital, Third Military Medical University, Chongqing 400037, China
| | - D-C Fang
- Institute of Gastroenterology, Southwest Hospital, Third Military Medical University, Chongqing 400037, China
| | - H Zhang
- Department of Gastroenterology, The Second Affiliated Hospital, Chongqing Medical University, Chongqing 400037, China
| | - C-J Hu
- Department of Gastroenterology, Xinqiao Hospital, Third Military Medical University, Chongqing 400037, China
| | - S-M Yang
- Department of Gastroenterology, Xinqiao Hospital, Third Military Medical University, Chongqing 400037, China
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Mohammad RY, Somayyeh G, Gholamreza H, Majid M, Yousef R. Diosgenin Inhibits hTERT Gene Expression in the A549 Lung Cancer Cell Line. Asian Pac J Cancer Prev 2013; 14:6945-8. [DOI: 10.7314/apjcp.2013.14.11.6945] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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