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Silencing of histone deacetylase 3 suppresses the development of esophageal squamous cell carcinoma through regulation of miR-494-mediated TGIF1. Cancer Cell Int 2022; 22:191. [PMID: 35578338 PMCID: PMC9109300 DOI: 10.1186/s12935-022-02581-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2021] [Accepted: 04/10/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Deacetylation of histones by histone deacetylase 3 (HDAC3) acts importantly in modulating apoptosis, DNA damage and cellular progression. Herein, we aimed to unravel the functional role of HDAC3 in a lethal disease, esophageal squamous cell carcinoma (ESCC). METHODS The expression of HDAC3 in clinically collected ESCC tissues was determined by RT-qPCR and immunohistochemistry. As revealed from bioinformatics analysis, the putative relations between HDAC3 and microRNA-494 (miR-494) and between miR-494 and transforming growth factor beta (TGFβ)-inducing factor 1 (TGIF1) were further verified by chromatin immunoprecipitation and dual-luciferase reporter gene assay. Functional roles of shRNA-mediated depletion of HDAC3, miR-494 mimic and overexpressed TGIF1 were explored by gain- and loss-of-function assays with regard to ESCC cell biological behaviors. A nude mouse model of ESCC was developed for in vivo validation. RESULTS HDAC3 was highly expressed in ESCC tissues, suggestive of poor prognosis while TGIF1 was upregulated and miR-494 was downregulated. Mechanistic investigation revealed that HDAC3 inhibited miR-494 expression and TGIF1 was a direct target of miR-494. Furthermore, silencing HDAC3 or overexpressing miR-494 was demonstrated to suppress aggressive phenotypes of ESCC cells both in vitro through the activated TGFβ signaling pathway and in vivo, while TGIF1 overexpression induced opposite results. CONCLUSION Collectively, our findings provided demonstration regarding the oncogenic property of HDAC3 in ESCC via the miR-494/TGIF1/TGFβ axis.
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Chang N, Ge N, Zhao Y, Yang L, Qin W, Cui Y. Hsa_circ_0007142 contributes to cisplatin resistance in esophageal squamous cell carcinoma via miR‐494‐3p/LASP1 axis. J Clin Lab Anal 2022; 36:e24304. [PMID: 35312115 PMCID: PMC9102771 DOI: 10.1002/jcla.24304] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2021] [Revised: 02/10/2022] [Accepted: 02/11/2022] [Indexed: 01/21/2023] Open
Abstract
Background Methods Results Conclusion
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Affiliation(s)
- Na Chang
- Department of Cancer Radiotherapy The First Affiliated Hospital of USTC Division of Life Sciences and Medicine University of Science and Technology of China (Anhui Provincial Cancer Hospital) Hefei Anhui China
| | - Ning Ge
- Department of Cancer Radiotherapy The First Affiliated Hospital of USTC Division of Life Sciences and Medicine University of Science and Technology of China (Anhui Provincial Cancer Hospital) Hefei Anhui China
| | - Yufei Zhao
- Department of Cancer Radiotherapy The First Affiliated Hospital of USTC Division of Life Sciences and Medicine University of Science and Technology of China (Anhui Provincial Cancer Hospital) Hefei Anhui China
| | - Liu Yang
- Department of Cancer Radiotherapy The First Affiliated Hospital of USTC Division of Life Sciences and Medicine University of Science and Technology of China (Anhui Provincial Cancer Hospital) Hefei Anhui China
| | - Wei Qin
- Department of Science and Education The First Affiliated Hospital of USTC Division of Life Sciences and Medicine University of Science and Technology of China (Anhui provincial Cancer Hospital) Hefei Anhui China
| | - Yayun Cui
- Department of Cancer Radiotherapy The First Affiliated Hospital of USTC Division of Life Sciences and Medicine University of Science and Technology of China (Anhui Provincial Cancer Hospital) Hefei Anhui China
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Jayaraman A, Zhou T, Jayaraman S. Histone Modifier Differentially Regulates Gene Expression and Unravels Survival Role of MicroRNA-494 in Jurkat Leukemia. Microrna 2021; 10:39-50. [PMID: 33845753 DOI: 10.2174/2211536610666210412153322] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2020] [Revised: 11/12/2020] [Accepted: 02/22/2021] [Indexed: 11/22/2022]
Abstract
BACKGROUND Although the protein-coding genes are subject to histone hyperacetylation-mediated regulation, it is unclear whether microRNAs are similarly regulated in the T cell leukemia Jurkat. OBJECTIVE To determine whether treatment with the histone modifier Trichostatin A could concurrently alter the expression profiles of microRNAs and protein-coding genes. METHODS Changes in histone hyperacetylation and viability in response to drug treatment were analyzed, respectively, using western blotting and flow cytometry. Paired global expression profiling of microRNAs and coding genes was performed and highly regulated genes validated by qRT-PCR. The interrelationships between the drug-induced miR-494 upregulation, the expression of putative target genes, and T cell receptor-mediated apoptosis were evaluated using qRT-PCR, flow cytometry, and western blotting following lipid-mediated transfection with specific anti-microRNA inhibitors. RESULTS Treatment of Jurkat cells with Trichostatin A resulted in histone hyperacetylation and apoptosis. Global expression profiling indicated prominent upregulation of miR-494 in contrast to differential regulation of many protein-coding and non-coding genes validated by qRT-PCR. Although transfection with synthetic anti-miR-494 inhibitors failed to block drug-induced apoptosis or miR-494 upregulation, it induced the transcriptional repression of the PVRIG gene. Surprisingly, miR-494 inhibition in conjunction with low doses of Trichostatin A enhanced the weak T cell receptor-mediated apoptosis, indicating a subtle pro-survival role of miR-494. Interestingly, this pro-survival effect was overwhelmed by mitogen-mediated T cell activation and higher drug doses, which mediated caspase-dependent apoptosis. CONCLUSION Our results unravel a pro-survival function of miR-494 and its putative interaction with the PVRIG gene and the apoptotic machinery in Jurkat cells.
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Affiliation(s)
- Arathi Jayaraman
- Dept. of Medicine, the University of Illinois at Chicago, Chicago, IL 60612. United States
| | - Tong Zhou
- Dept. of Medicine, the University of Illinois at Chicago, Chicago, IL 60612. United States
| | - Sundararajan Jayaraman
- Dept. of Medicine, the University of Illinois at Chicago, Chicago, IL 60612. United States
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Parashar D, Geethadevi A, McAllister D, Ebben J, Peterson FC, Jensen DR, Bishop E, Pradeep S, Volkman BF, Dwinell MB, Chaluvally-Raghavan P, James MA. Targeted biologic inhibition of both tumor cell-intrinsic and intercellular CLPTM1L/CRR9-mediated chemotherapeutic drug resistance. NPJ Precis Oncol 2021; 5:16. [PMID: 33654182 PMCID: PMC7925570 DOI: 10.1038/s41698-021-00152-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2019] [Accepted: 01/06/2021] [Indexed: 02/07/2023] Open
Abstract
Recurrence of therapy-resistant tumors is a principal problem in solid tumor oncology, particularly in ovarian cancer. Despite common complete responses to first line, platinum-based therapies, most women with ovarian cancer recur, and eventually, nearly all with recurrent disease develop platinum resistance. Likewise, both intrinsic and acquired resistance contribute to the dismal prognosis of pancreatic cancer. Our previous work and that of others has established CLPTM1L (cleft lip and palate transmembrane protein 1-like)/CRR9 (cisplatin resistance related protein 9) as a cytoprotective oncofetal protein that is present on the tumor cell surface. We show that CLPTM1L is broadly overexpressed and accumulated on the plasma membrane of ovarian tumor cells, while weakly or not expressed in normal tissues. High expression of CLPTM1L is associated with poor outcome in ovarian serous adenocarcinoma. Robust re-sensitization of resistant ovarian cancer cells to platinum-based therapy was achieved using human monoclonal biologics inhibiting CLPTM1L in both orthotopic isografts and patient-derived cisplatin resistant xenograft models. Furthermore, we demonstrate that in addition to cell-autonomous cytoprotection by CLPTM1L, extracellular CLPTM1L confers resistance to chemotherapeutic killing in an ectodomain-dependent fashion, and that this intercellular resistance mechanism is inhibited by anti-CLPTM1L biologics. Specifically, exosomal CLPTM1L from cisplatin-resistant ovarian carcinoma cell lines conferred resistance to cisplatin in drug-sensitive parental cell lines. CLPTM1L is present in extracellular vesicle fractions of tumor culture supernatants and in patients' serum with increasing abundance upon chemotherapy treatment. These findings have encouraging implications for the use of anti-CLPTM1L targeted biologics in the treatment of therapy-resistant tumors.
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Affiliation(s)
- Deepak Parashar
- Department of Obstetrics and Gynecology, Medical College of Wisconsin, Milwaukee, WI, USA
| | - Anjali Geethadevi
- Department of Obstetrics and Gynecology, Medical College of Wisconsin, Milwaukee, WI, USA
| | - Donna McAllister
- Department of Microbiology and Immunology, Medical College of Wisconsin, Milwaukee, WI, USA
| | - Johnathan Ebben
- Department of Medicine, University of Wisconsin, Madison, WI, USA
| | | | - Davin R Jensen
- Department of Biochemistry, University of Wisconsin, Madison, WI, USA
| | - Erin Bishop
- Department of Obstetrics and Gynecology, Medical College of Wisconsin, Milwaukee, WI, USA
| | - Sunila Pradeep
- Department of Obstetrics and Gynecology, Medical College of Wisconsin, Milwaukee, WI, USA
| | - Brian F Volkman
- Department of Biochemistry, University of Wisconsin, Madison, WI, USA
| | - Michael B Dwinell
- Department of Microbiology and Immunology, Medical College of Wisconsin, Milwaukee, WI, USA
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Ghosh A, Mukherjee S, Roy M, Datta A. Modulatory role of tea in arsenic induced epigenetic alterations in carcinogenesis. THE NUCLEUS 2021. [DOI: 10.1007/s13237-020-00346-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
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6
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Chen Z, Hu X, Wu Y, Cong L, He X, Lu J, Feng J, Liu D. Long non-coding RNA XIST promotes the development of esophageal cancer by sponging miR-494 to regulate CDK6 expression. Biomed Pharmacother 2019; 109:2228-2236. [DOI: 10.1016/j.biopha.2018.11.049] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2018] [Revised: 11/09/2018] [Accepted: 11/10/2018] [Indexed: 02/07/2023] Open
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Jamali L, Tofigh R, Tutunchi S, Panahi G, Borhani F, Akhavan S, Nourmohammadi P, Ghaderian SM, Rasouli M, Mirzaei H. Circulating microRNAs as diagnostic and therapeutic biomarkers in gastric and esophageal cancers. J Cell Physiol 2018; 233:8538-8550. [DOI: 10.1002/jcp.26850] [Citation(s) in RCA: 105] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2018] [Accepted: 05/10/2018] [Indexed: 12/19/2022]
Affiliation(s)
- Leila Jamali
- Department of Medical Genetics School of Medicine, Shahid Beheshti University of Medical Sciences Tehran Iran
| | | | - Sara Tutunchi
- Department of Medical Genetics Shahid Sadoughi University of Medical Sciences Yazd Iran
| | - Ghodratollah Panahi
- Department of Biochemistry Faculty of Medicine, Tehran University of Medical Sciences Tehran Iran
| | - Fatemeh Borhani
- Department of Basic Sciences Faculty of Medicine, Gonabad University of Medical Sciences Gonabad Iran
- Department of Basic Sciences Faculty of Medicine, Shahid Beheshti University of Medical Sciences Tehran Iran
| | - Saeedeh Akhavan
- Department of Biology School of Basic Sciences, Science and Research Branch, Islamic Azad University Tehran Iran
| | - Parisa Nourmohammadi
- Department of Medical Genetics Shahid Sadoughi University of Medical Sciences Yazd Iran
| | - Sayyed M.H. Ghaderian
- Urogenital Stem Cell Research Shahid Beheshti University of Medical Sciences Tehran Iran
| | - Milad Rasouli
- Department of Immunology Faculty of Medical Sciences, Tarbiat Modares University Tehran Iran
| | - Hamed Mirzaei
- Department of Medical Biotechnology School of Medicine Mashhad University of Medical Sciences Mashhad Iran
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Sun T, Cheung KSC, Liu ZL, Leung F, Lu WW. Matrix metallopeptidase 9 targeted by hsa-miR-494 promotes silybin-inhibited osteosarcoma. Mol Carcinog 2017; 57:262-271. [DOI: 10.1002/mc.22753] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2017] [Revised: 10/09/2017] [Accepted: 10/23/2017] [Indexed: 12/21/2022]
Affiliation(s)
- Tianhao Sun
- Li Ka Shing Faculty of Medicine; Department of Orthopaedics and Traumatology; The University of Hong Kong; Hong Kong SAR China
| | - Kelvin S. C. Cheung
- Li Ka Shing Faculty of Medicine; Department of Orthopaedics and Traumatology; The University of Hong Kong; Hong Kong SAR China
| | - Zhi-Li Liu
- Department of Orthopedic Surgery; The First Affiliated Hospital of Nanchang University; Nanchang China
| | - Frankie Leung
- Li Ka Shing Faculty of Medicine; Department of Orthopaedics and Traumatology; The University of Hong Kong; Hong Kong SAR China
- Shenzhen Key Laboratory for Innovative Technology in Orthopaedic Trauma; Department of Orthopaedics and Traumatology; The University of Hong Kong-Shenzhen Hospital; Shenzhen China
| | - William W. Lu
- Li Ka Shing Faculty of Medicine; Department of Orthopaedics and Traumatology; The University of Hong Kong; Hong Kong SAR China
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Yang A, Wang X, Yu C, Jin Z, Wei L, Cao J, Wang Q, Zhang M, Zhang L, Zhang L, Hao C. microRNA-494 is a potential prognostic marker and inhibits cellular proliferation, migration and invasion by targeting SIRT1 in epithelial ovarian cancer. Oncol Lett 2017; 14:3177-3184. [PMID: 28927063 DOI: 10.3892/ol.2017.6501] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2015] [Accepted: 02/01/2017] [Indexed: 02/06/2023] Open
Abstract
Ovarian cancer is one of the most common types of gynecological malignancy worldwide, and is the fourth leading cause of cancer-associated mortality among women. Despite improvements in therapeutic treatments, the prognosis for epithelial ovarian cancer (EOC) remains poor, mainly due to the rapid growth and metastasis of ovarian cancer tumors. An increasing number of studies have indicated that microRNAs (miRNAs) are involved in the carcinogenesis and progression of human cancer, suggesting that miRNAs may be used in clinical prognosis and as a therapeutic target in EOC. The aim of the present study was to investigate the expression levels of miRNA-494 in EOC tissues and cell lines. The clinical significance of miRNA-494 in patients with EOC was also evaluated. The results demonstrated that miRNA-494 was significantly downregulated in EOC tissues and cell lines. Low expression levels of miRNA-494 were associated with poor prognostic features, including International Federation of Gynecology and Obstetrics stage, tumor size and lymph node metastasis. In vitro functional studies demonstrated that overexpression of miRNA-494 inhibited proliferation, migration and invasion in EOC cells. By contrast, knockdown of miRNA-494 enhanced cell growth, migration and invasion in EOC cells. Notably, sirtuin 1 (SIRT1) was identified as a direct target of miRNA-494 in EOC. Furthermore, MTT, cell migration and invasion assays verified that EOC cell proliferation, migration and invasion were completely restored with forced miRNA-494 expression and SIRT1 restoration. Together, these findings suggest that miRNA-494 is a potential prognostic marker, and may provide novel therapeutic regimens of targeted therapy for EOC.
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Affiliation(s)
- Aijun Yang
- Center for Reproductive Medicine, Affiliated Hospital of Jining Medical University, Jining, Shandong 272029, P.R. China
| | - Xuenan Wang
- Center for Reproductive Medicine, Affiliated Hospital of Jining Medical University, Jining, Shandong 272029, P.R. China
| | - Chunna Yu
- Center for Reproductive Medicine, Affiliated Hospital of Jining Medical University, Jining, Shandong 272029, P.R. China
| | - Zhenzhen Jin
- Center for Reproductive Medicine, Affiliated Hospital of Jining Medical University, Jining, Shandong 272029, P.R. China
| | - Lingxia Wei
- Department of Clinical Medicine, Jining Medical University, Jining, Shandong 272067, P.R. China
| | - Jinghe Cao
- Center for Reproductive Medicine, Affiliated Hospital of Jining Medical University, Jining, Shandong 272029, P.R. China
| | - Qin Wang
- Center for Reproductive Medicine, Affiliated Hospital of Jining Medical University, Jining, Shandong 272029, P.R. China
| | - Min Zhang
- Center for Reproductive Medicine, Affiliated Hospital of Jining Medical University, Jining, Shandong 272029, P.R. China
| | - Lin Zhang
- Center for Reproductive Medicine, Affiliated Hospital of Jining Medical University, Jining, Shandong 272029, P.R. China
| | - Lei Zhang
- School of Life Science, Shandong Normal University, Jinan, Shandong 250014, P.R. China.,Department of Pathology and Laboratory Medicine, Division of Oral Biology and Medicine, Institute for Molecular Medicine, Clinical Microarray Core, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, California 90095, USA
| | - Cuifang Hao
- Department of Gynecology and Obstetrics, Qing Dao University, Qingdao, Shandong 266071, P.R. China
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Ni Z, Chen Q, Lai Y, Wang Z, Sun L, Luo X, Wang X. Prognostic significance of CLPTM1L expression and its effects on migration and invasion of human lung cancer cells. Cancer Biomark 2016; 16:445-52. [PMID: 27062701 DOI: 10.3233/cbm-160583] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
BACKGROUND CLPTM1L (Cleft lip and palate transmembrane protein 1-like) has been previously shown to be overexpressed in lung cancer and is involved in regulating cisplatin sensitivity. In this study, we assessed the relationship between CLPTM1L expression and prognosis of lung cancer in patients and explored its role in regulating cell migration and invasion. METHODS Immunohistochemistry was used to examine CLPTM1L expression levels on a tissue microarray containing 73 sets of human lung cancer specimens with adjacent normal tissue. The correlation between CLPTM1L expression and patient survival was analysed by the Kaplan-Meier method. In addition, CLPTM1L-knockdown lung cells were used to investigate the effect of CLPTM1L on cell migration and invasion in vitro. RESULTS The results of immunohistochemical analysis showed that CLPTM1L was overexpressed in lung cancer tissues compared with adjacent normal tissues. Kaplan-Meier analyses revealed that patients with high CLPTM1L expression showed poorer survival than those with low CLPTM1L expression. In addition, in vitro studies revealed that the knockdown of CLPTM1L expression in 95-D lung cancer cells suppressed cell migration and invasion. Further, the loss of CLPTM1L resulted in decreased matrix metalloproteinase-2 (MMP-2) expression in these cells. CONCLUSION Our data demonstrate that CLPTM1L overexpression can predict poor prognosis in patients with lung cancer and suggest that CLPTM1L might be associated with the regulation of cell migration and invasion.
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Affiliation(s)
- Zhenhua Ni
- Central Lab, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Qingge Chen
- Department of Respiratory Medicine, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Yiming Lai
- Department of Respiratory Medicine, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Ziyuan Wang
- Central Lab, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Li Sun
- Department of Respiratory Medicine, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Xuming Luo
- Department of Respiratory Medicine, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Xiongbiao Wang
- Department of Respiratory Medicine, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
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Zhou L, Fu G, Wei J, Shi J, Pan W, Ren Y, Xiong X, Xia J, Shen Y, Li H, Yang M. The identification of two regulatory ESCC susceptibility genetic variants in the TERT-CLPTM1L loci. Oncotarget 2016; 7:5495-506. [PMID: 26716642 PMCID: PMC4868701 DOI: 10.18632/oncotarget.6747] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2015] [Accepted: 12/07/2015] [Indexed: 01/25/2023] Open
Abstract
The chromosome 5p15.33 TERT-CLPTM1L region has been identified by genome-wide association studies as a susceptibility locus of multiple malignancies. However, the involvement of this locus in esophageal squamous cell carcinoma (ESCC) development is still largely unclear. We fine-mapped the TERT-CLPTM1L region through genotyping 15 haplotype-tagging single nucleotide polymorphisms (htSNPs) using a two stage case-control strategy. After analyzing 2098 ESCC patients and frequency-matched 2150 unaffected controls, we found that rs2853691, rs2736100 and rs451360 genetic polymorphisms are significantly associated with ESCC risk in Chinese (all P<0.05). Reporter gene assays indicated that the ESCC susceptibility SNP rs2736100 locating in a potential TERT intronic promoter has a genotype-specific effect on TERT expression. Similarly, the CLPTM1L rs451360 SNP also showed allelic impacts on gene expression. After measuring TERT and CLPTM1L expression in sixty-six pairs of esophageal cancer and normal tissues, we observed that the rs2736100 G risk allele carriers showed elevated oncogene TERT expression. Also, subjects with the rs451360 protective T allele had much lower oncogene CLPTM1L expression than those with G allele in tissue specimens. Results of these analyses underline the complexity of genetic regulation of telomere biology and further support the important role of telomerase in carcinogenesis. Our data also support the involvement of CLPTM1L in ESCC susceptibility.
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Affiliation(s)
- Liqing Zhou
- State Key Laboratory of Chemical Resource Engineering, Beijing Laboratory of Biomedical Materials, College of Life Science and Technology, Beijing University of Chemical Technology, Beijing, China.,Department of Radiation Oncology, Huaian No. 2 Hospital, Huaian, Jiangsu Province, China
| | - Guobin Fu
- Department of Oncology, Provincial Hospital Affiliated to Shandong University, Jinan, Shandong Province, China
| | - Jinyu Wei
- State Key Laboratory of Chemical Resource Engineering, Beijing Laboratory of Biomedical Materials, College of Life Science and Technology, Beijing University of Chemical Technology, Beijing, China
| | - Juan Shi
- State Key Laboratory of Chemical Resource Engineering, Beijing Laboratory of Biomedical Materials, College of Life Science and Technology, Beijing University of Chemical Technology, Beijing, China
| | - Wenting Pan
- State Key Laboratory of Chemical Resource Engineering, Beijing Laboratory of Biomedical Materials, College of Life Science and Technology, Beijing University of Chemical Technology, Beijing, China
| | - Yanli Ren
- State Key Laboratory of Chemical Resource Engineering, Beijing Laboratory of Biomedical Materials, College of Life Science and Technology, Beijing University of Chemical Technology, Beijing, China
| | - Xiangyu Xiong
- State Key Laboratory of Chemical Resource Engineering, Beijing Laboratory of Biomedical Materials, College of Life Science and Technology, Beijing University of Chemical Technology, Beijing, China
| | - Jianhong Xia
- Department of Radiation Oncology, Huaian No. 2 Hospital, Huaian, Jiangsu Province, China
| | - Yue Shen
- Department of Radiation Oncology, Huaian No. 2 Hospital, Huaian, Jiangsu Province, China
| | - Hongliang Li
- Department of Radiation Oncology, Huaian No. 2 Hospital, Huaian, Jiangsu Province, China
| | - Ming Yang
- State Key Laboratory of Chemical Resource Engineering, Beijing Laboratory of Biomedical Materials, College of Life Science and Technology, Beijing University of Chemical Technology, Beijing, China
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Li J, Wang L, Liu Z, Zu C, Xing F, Yang P, Yang Y, Dang X, Wang K. MicroRNA-494 inhibits cell proliferation and invasion of chondrosarcoma cells in vivo and in vitro by directly targeting SOX9. Oncotarget 2016; 6:26216-29. [PMID: 26317788 PMCID: PMC4694896 DOI: 10.18632/oncotarget.4460] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2015] [Accepted: 06/19/2015] [Indexed: 12/20/2022] Open
Abstract
Accumulating evidence indicates that dysregulation of miRNAs could contribute to tumor growth and metastasis of chondrosarcoma by infuencing cell proliferation and invasion. In the current study, we are interested to examine the role of miRNAs in the carcinogenesis and progression of chondrosarcoma. Here, using comparative miRNA profiling of tissues and cells of chondrosarcoma and cartilage, we identified miR-494 as a commonly downregulated miRNA in the tissues of patients with chondrosarcoma and chondrosarcoma cancer cell line, and upregulation of miR-494 could inhibit proliferation and invasion of chondrosarcoma cancer cells in vivo and in vitro. Moreover, our data demonstrated that SOX9, the essential regulator of the process of cartilage differentiation, was the direct target and functional mediator of miR-494 in chondrosarcoma cells. And downregulation of SOX9 could also inhibit migration and invasion of chondrosarcoma cells. In the last, we identified low expression of miR-494 was significantly correlated with poor overall survival and prognosis of chondrosarcoma patients. Thus, miR-494 may be a new common therapeutic target and prognosis biomarker for chondrosarcoma.
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Affiliation(s)
- Jingyuan Li
- Department of Orthopaedics, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710004, Shaanxi Province, P.R. China.,Department of Orthopaedics, Shaanxi Provincial People's Hospital, The Third Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710068, Shaanxi Province, P.R. China
| | - Lijuan Wang
- Department of Oncology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, Shaanxi Province, P.R. China
| | - Zongzhi Liu
- Department of Orthopaedics, Shaanxi Provincial People's Hospital, The Third Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710068, Shaanxi Province, P.R. China
| | - Chao Zu
- Department of Surgical Oncology, Shaanxi Provincial People's Hospital, The Third Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710068, Shaanxi Province, P.R. China
| | - Fanfan Xing
- Department of Clinical Microbiology and Infection Control, The University of Hong Kong - Shenzhen Hospital, Shenzhen, 518053, Guangdong Province, P.R. China
| | - Pei Yang
- Department of Orthopaedics, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710004, Shaanxi Province, P.R. China
| | - Yongkang Yang
- Department of Gynecology and Obstetrics, The Second Affiliated Hospital of Shaanxi University of Chinese Medicine, Xianyang, 712000, Shaanxi Province, P.R. China
| | - Xiaoqian Dang
- Department of Orthopaedics, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710004, Shaanxi Province, P.R. China
| | - Kunzheng Wang
- Department of Orthopaedics, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710004, Shaanxi Province, P.R. China
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ZHAO XIAOJUAN, ZHOU YUN, CHEN YU, YU FENG. miR-494 inhibits ovarian cancer cell proliferation and promotes apoptosis by targeting FGFR2. Oncol Lett 2016; 11:4245-4251. [PMID: 27313773 PMCID: PMC4888167 DOI: 10.3892/ol.2016.4527] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2015] [Accepted: 03/02/2016] [Indexed: 01/02/2023] Open
Abstract
MicroRNAs (miRs) have been reported to be key regulators in numerous types of cancer. The aim of the present study was to investigate the role of miR-494 in ovarian cancer. Expression of miR-494 was analyzed in ovarian cancer tissues and cell lines by reverse transcription-quantitative polymerase chain reaction (RT-qPCR). miR-494 mimic or negative control was transiently transfected into A2780 and SKOV3 cell lines. A cell counting kit-8 assay was performed to assess the effects of miR-494 on cell proliferation, and flow cytometry was used to evaluate the apoptotic rate. The target gene of miR-494 was detected by luciferase assay. Expression of fibroblast growth factor receptor 2 (FGFR2) was identified using RT-qPCR and western blotting. In the present study, decreased expression of miR-494 was observed in ovarian cancer samples and cell lines. Overexpression of miR-494 inhibited ovarian cancer cell proliferation by inducing apoptosis. Additional investigation indicated that FGFR2 was a direct target of miR-494. Taken together, the results of the present study suggested that miR-494 suppressed ovarian cancer cell proliferation by inducing apoptosis via targeting FGFR2.
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Affiliation(s)
- XIAOJUAN ZHAO
- Department of Gynecology and Obstetrics, Nanjing Medical University Affiliated Wuxi Second Hospital, Wuxi, Jiangsu 214000, P.R. China
| | - YUN ZHOU
- Department of Gynecology and Obstetrics, Nanjing Medical University Affiliated Wuxi Second Hospital, Wuxi, Jiangsu 214000, P.R. China
| | - YU CHEN
- Department of Gynecology and Obstetrics, Nanjing Medical University Affiliated Wuxi Second Hospital, Wuxi, Jiangsu 214000, P.R. China
| | - FENG YU
- Department of Gynecology and Obstetrics, Nanjing Medical University Affiliated Wuxi Second Hospital, Wuxi, Jiangsu 214000, P.R. China
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Abstract
MicroRNAs (miRNA) are 22-nucleotide non-coding RNAs that post-transcriptionally regulate gene expression by base pairing to partially complementary sequences in the 3'-untranslated region of their target messenger RNA. Altered miRNA expression also changes the expression of oncogenes and tumor suppressors, affecting the proliferation, apoptosis, motility and invasibility of gastrointestinal cancer cells, including the cells of esophageal squamous cell carcinoma (ESCC). It has been suggested that various miRNA expression profiles may provide useful biomarkers and therapeutic targets, but to date few studies have been published on the role of miRNA in ESCC. In this review we summarize the identification and characterization of miRNAs involved in ESCC and discuss their potential as biomarkers and therapeutic targets.
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MIR494 reduces renal cancer cell survival coinciding with increased lipid droplets and mitochondrial changes. BMC Cancer 2016; 16:33. [PMID: 26794413 PMCID: PMC4722626 DOI: 10.1186/s12885-016-2053-3] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2015] [Accepted: 01/06/2016] [Indexed: 12/19/2022] Open
Abstract
Background miRNAs can regulate cellular survival in various cancer cell types. Recent evidence implicates the formation of lipid droplets as a hallmark event during apoptotic cell death response. It is presently unknown whether MIR494, located at 14q32 which is deleted in renal cancers, reduces cell survival in renal cancer cells and if this process is accompanied by changes in the number of lipid droplets. Methods 769-P renal carcinoma cells were utilized for this study. Control or MIR494 mimic was expressed in these cells following which cell viability (via crystal violet) and apoptotic cell numbers (via Annexin V/PI staining) were assessed. By western blotting, MIR494 cellular responses were validated using MIR494 antagomir and Argonaute 2 siRNA. Transmission electron microscopy (TEM) was performed in MIR494-transfected 769-P cells to identify ultrastructural changes. LipidTOX green neutral lipid staining and cholesterol measurements were conducted to assess accumulation of lipids droplets and total cholesterol levels, respectively, in MIR494 expressing 769-P cells. Indirect immunofluorescence and western analyses were also performed to examine changes in mitochondria organization. Co-transfection of MIR494 mimic with siRNA targeting LC3B and ATG7 was conducted to assess their contribution to formation of lipid droplets in MIR494-expressing cells. Results MIR494 expression reduces viability of 769-P renal cancer cells; this was accompanied by increased cleaved PARP (an apoptotic marker) and LC3B protein. Further, expression of MIR494 increased LC3B mRNA levels and LC3B promoter activity (2.01-fold; 50 % increase). Interestingly, expression of MIR494 markedly increased multilamellar bodies and lipid droplets (by TEM and validated by LipidTOX immunostaining) while reducing total cholesterol levels. Via immunocytochemistry, we observed increased LC3B-associated endogenous punctae upon MIR494 expression. In contrast to ATG7 siRNA, knockdown of LC3B reduced the numbers of lipid droplets in MIR494-expressing cells. Our results also identified that MIR494 expression altered the organization of mitochondria which was accompanied by co-localization with LC3B punctae, decreased PINK1 protein, and altered Drp1 intracellular distribution. Conclusion Collectively, our findings indicate that MIR494 reduces cell survival in 769-P renal cancer cells which is accompanied by increased lipid droplet formation (which occurs in a LC3B-dependent manner) and mitochondrial changes.
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Tay J, Tiao J, Hughes Q, Gilmore G, Baker R. Therapeutic Potential of miR-494 in Thrombosis and Other Diseases: A Review. Aust J Chem 2016. [DOI: 10.1071/ch16020] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Functional nucleic acids, such as microRNAs (miRNAs), have been implicated in the pathophysiology of many diseases. The miRNA expression profiles of various cancers including haematological malignancies are well defined, but the role of miRNAs in haemostasis and the regulation of coagulation is poorly understood. We identified that miR-494 is oestrogen responsive and directly targets the anticoagulant protein, Protein S, as a mechanism for acquiring Protein S deficiency under high oestrogenic conditions such as during pregnancy and oral contraceptive use. Furthermore, previous studies have also characterised miR-494 to be involved in many biological processes. This paper reviews the current knowledge in the role of miRNAs in regulating haemostatic proteins and the known biological functions of miR-494, highlighting miR-494 as an emerging therapeutic target, with an overview of the strategy we have employed in identifying functional nucleic acids such as miRNAs that target haemostatic factors and the therapeutic potential of miR-494-directed therapy for the treatment of thrombotic disorders.
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