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Srinath S, Jishnu PV, Varghese VK, Shukla V, Adiga D, Mallya S, Chakrabarty S, Sharan K, Pandey D, Chatterjee A, Kabekkodu SP. Regulation and tumor-suppressive function of the miR-379/miR-656 (C14MC) cluster in cervical cancer. Mol Oncol 2024; 18:1608-1630. [PMID: 38400534 PMCID: PMC11161731 DOI: 10.1002/1878-0261.13611] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Revised: 01/05/2024] [Accepted: 02/13/2024] [Indexed: 02/25/2024] Open
Abstract
Cervical cancer (CC) is a key contributor to cancer-related mortality in several countries. The identification of molecular markers and the underlying mechanism may help improve CC management. We studied the regulation and biological function of the chromosome 14 microRNA cluster (C14MC; miR-379/miR-656) in CC. Most C14MC members exhibited considerably lower expression in CC tissues and cell lines in The Cancer Genome Atlas (TCGA) cervical squamous cell carcinoma and endocervical adenocarcinoma patient cohorts. Bisulfite Sanger sequencing revealed hypermethylation of the C14MC promoter in CC tissues and cell lines. 5-aza-2 deoxy cytidine treatment reactivated expression of the C14MC members. We demonstrated that C14MC is a methylation-regulated miRNA cluster via artificial methylation and luciferase reporter assays. C14MC downregulation correlated with poor overall survival and may promote metastasis. C14MC activation via the lentiviral-based CRISPRa approach inhibited growth, proliferation, migration, and invasion; enhanced G2/M arrest; and induced senescence. Post-transcriptional regulatory network analysis of C14MC transcriptomic data revealed enrichment of key cancer-related pathways, such as metabolism, the cell cycle, and phosphatidylinositol 3-kinase (PI3K)-AKT signaling. Reduced cell proliferation, growth, migration, invasion, and senescence correlated with the downregulation of active AKT, MYC, and cyclin E1 (CCNE1) and the overexpression of p16, p21, and p27. We showed that C14MC miRNA activation increases reactive oxygen species (ROS) levels, intracellular Ca2+ levels, and lipid peroxidation rates, and inhibits epithelial-mesenchymal transition (EMT). C14MC targets pyruvate dehydrogenase kinase-3 (PDK3) according to the luciferase reporter assay. PDK3 is overexpressed in CC and is inversely correlated with C14MC. Both miR-494-mimic transfection and C14MC activation inhibited PDK3 expression. Reduced glucose uptake and lactate production, and upregulation of PDK3 upon C14MC activation suggest the potential role of these proteins in metabolic reprogramming. Finally, we showed that C14MC activation may inhibit EMT signaling. Thus, C14MC is a tumor-suppressive and methylation-regulated miRNA cluster in CC. Reactivation of C14MC can be useful in the management of CC.
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Grants
- Fund for Improvement of S&T Infrastructure (FIST), Department of Science and Technology, Government of India
- Karnataka Fund for Infrastructure Strengthening in Science and Technology (K-FIST), the Government of Karnataka
- MTR/2021/000182 Department of Science and Technology, Ministry of Science and Technology, India
- EMR/2016/002314 Science and Engineering Research Board (SERB)
- Manipal Academy of Higher Education, Manipal
- IA/I/22/1/506240 DBT-Wellcome Trust India Alliance
- SPARC/2019-2020/P2297/SL SPARC
- IA/I/22/1/506240 Wellcome Trust DBT India Alliance, Government of India
- Builder Grant, Department of Biotechnology, Government of India
- Technology Information Forecasting and Assessment Council (TIFAC) Core in Pharmacogenomics at MAHE, the Manipal
- Wellcome Trust
- Science and Engineering Research Board (SERB)
- Department of Science and Technology, Ministry of Science and Technology, India
- SPARC
- Technology Information Forecasting and Assessment Council (TIFAC) Core in Pharmacogenomics at MAHE, the Manipal
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Affiliation(s)
- Sriharikrishnaa Srinath
- Department of Cell and Molecular Biology, Manipal School of Life SciencesManipal Academy of Higher EducationIndia
| | - Padacherri Vethil Jishnu
- Department of Cell and Molecular Biology, Manipal School of Life SciencesManipal Academy of Higher EducationIndia
| | - Vinay Koshy Varghese
- Department of Cell and Molecular Biology, Manipal School of Life SciencesManipal Academy of Higher EducationIndia
| | - Vaibhav Shukla
- Department of Cell and Molecular Biology, Manipal School of Life SciencesManipal Academy of Higher EducationIndia
| | - Divya Adiga
- Department of Cell and Molecular Biology, Manipal School of Life SciencesManipal Academy of Higher EducationIndia
| | - Sandeep Mallya
- Department of Bioinformatics, Manipal School of Life SciencesManipal Academy of Higher EducationIndia
| | - Sanjiban Chakrabarty
- Department of Cell and Molecular Biology, Manipal School of Life SciencesManipal Academy of Higher EducationIndia
- Center for DNA Repair and Genome Stability (CDRGS)Manipal Academy of Higher EducationIndia
| | - Krishna Sharan
- Department of Radiotherapy OncologyKasturba Medical CollegeManipalIndia
| | - Deeksha Pandey
- Department of Obstetrics & GynecologyKasturba Medical CollegeManipalIndia
| | - Aniruddha Chatterjee
- Department of Pathology, Dunedin School of MedicineUniversity of OtagoDunedinNew Zealand
| | - Shama Prasada Kabekkodu
- Department of Cell and Molecular Biology, Manipal School of Life SciencesManipal Academy of Higher EducationIndia
- Center for DNA Repair and Genome Stability (CDRGS)Manipal Academy of Higher EducationIndia
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P2X7 promotes metastatic spreading and triggers release of miRNA-containing exosomes and microvesicles from melanoma cells. Cell Death Dis 2021; 12:1088. [PMID: 34789738 PMCID: PMC8599616 DOI: 10.1038/s41419-021-04378-0] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Revised: 10/14/2021] [Accepted: 10/29/2021] [Indexed: 12/21/2022]
Abstract
Tumor growth and metastatic spreading are heavily affected by the P2X7 receptor as well as microvesicles and exosomes release into the tumor microenvironment. P2X7 receptor stimulation is known to trigger vesicular release from immune and central nervous system cells. However, P2X7 role in microvesicles and exosomes delivery from tumor cells was never analyzed in depth. Here we show that P2X7 is overexpressed in patients affected by metastatic malignant melanoma and that its expression closely correlates with reduced overall survival. Antagonism of melanoma cell-expressed P2X7 receptor inhibited in vitro anchorage-independent growth and migration and in vivo dissemination and lung metastasis formation. P2X7 stimulation triggered the release of miRNA-containing microvesicles and exosomes from melanoma cells, profoundly altering the nature of their miRNA content, as well as their dimensions and quantity. Among the more than 200 miRNAs that we found up-or-down-modulated for each vesicular fraction tested, we identified three miRNAs, miR-495-3p, miR-376c-3p, and miR-6730-3p, that were enriched in both the exosome and microvesicle fraction in a P2X7-dependent fashion. Interestingly, upon transfection, these miRNAs promoted melanoma cell growth or migration, and their vesicular release was minimized by P2X7 antagonism. Our data unveil an exosome/microvesicle and miRNA-dependent mechanism for the pro-metastatic activity of the P2X7 receptor and highlight this receptor as a suitable prognostic biomarker and therapeutic target in malignant melanoma.
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Lack of Conserved miRNA Deregulation in HPV-Induced Squamous Cell Carcinomas. Biomolecules 2021; 11:biom11050764. [PMID: 34065237 PMCID: PMC8160722 DOI: 10.3390/biom11050764] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Revised: 05/12/2021] [Accepted: 05/15/2021] [Indexed: 12/26/2022] Open
Abstract
Squamous cell carcinomas (SCCs) in the anogenital and head and neck regions are associated with high-risk types of human papillomaviruses (HR-HPV). Deregulation of miRNA expression is an important contributor to carcinogenesis. This study aimed to pinpoint commonly and uniquely deregulated miRNAs in cervical, anal, vulvar, and tonsillar tumors of viral or non-viral etiology, searching for a common set of deregulated miRNAs linked to HPV-induced carcinogenesis. RNA was extracted from tumors and nonmalignant tissues from the same locations. The miRNA expression level was determined by next-generation sequencing. Differential expression of miRNAs was calculated, and the patterns of miRNA deregulation were compared between tumors. The total of deregulated miRNAs varied between tumors of different locations by two orders of magnitude, ranging from 1 to 282. The deregulated miRNA pool was largely tumor-specific. In tumors of the same location, a low proportion of miRNAs were exclusively deregulated and no deregulated miRNA was shared by all four types of HPV-positive tumors. The most significant overlap of deregulated miRNAs was found between tumors which differed in location and HPV status (HPV-positive cervical tumors vs. HPV-negative vulvar tumors). Our results imply that HPV infection does not elicit a conserved miRNA deregulation in SCCs.
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Dwivedi SKD, Rao G, Dey A, Mukherjee P, Wren JD, Bhattacharya R. Small Non-Coding-RNA in Gynecological Malignancies. Cancers (Basel) 2021; 13:1085. [PMID: 33802524 PMCID: PMC7961667 DOI: 10.3390/cancers13051085] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Revised: 02/18/2021] [Accepted: 02/25/2021] [Indexed: 12/12/2022] Open
Abstract
Gynecologic malignancies, which include cancers of the cervix, ovary, uterus, vulva, vagina, and fallopian tube, are among the leading causes of female mortality worldwide, with the most prevalent being endometrial, ovarian, and cervical cancer. Gynecologic malignancies are complex, heterogeneous diseases, and despite extensive research efforts, the molecular mechanisms underlying their development and pathology remain largely unclear. Currently, mechanistic and therapeutic research in cancer is largely focused on protein targets that are encoded by about 1% of the human genome. Our current understanding of 99% of the genome, which includes noncoding RNA, is limited. The discovery of tens of thousands of noncoding RNAs (ncRNAs), possessing either structural or regulatory functions, has fundamentally altered our understanding of genetics, physiology, pathophysiology, and disease treatment as they relate to gynecologic malignancies. In recent years, it has become clear that ncRNAs are relatively stable, and can serve as biomarkers for cancer diagnosis and prognosis, as well as guide therapy choices. Here we discuss the role of small non-coding RNAs, i.e., microRNAs (miRs), P-Element induced wimpy testis interacting (PIWI) RNAs (piRNAs), and tRNA-derived small RNAs in gynecological malignancies, specifically focusing on ovarian, endometrial, and cervical cancer.
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Affiliation(s)
- Shailendra Kumar Dhar Dwivedi
- Department of Obstetrics and Gynecology, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA; (S.K.D.D.); (A.D.)
| | - Geeta Rao
- Department of Pathology, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA; (G.R.); (P.M.)
| | - Anindya Dey
- Department of Obstetrics and Gynecology, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA; (S.K.D.D.); (A.D.)
| | - Priyabrata Mukherjee
- Department of Pathology, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA; (G.R.); (P.M.)
- Peggy and Charles Stephenson Cancer Center, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA
| | - Jonathan D. Wren
- Biochemistry and Molecular Biology Department, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA;
- Oklahoma Center for Neuroscience, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA
- Genes & Human Disease Research Program, Oklahoma Medical Research Foundation, Oklahoma City, OK 73104, USA
| | - Resham Bhattacharya
- Department of Obstetrics and Gynecology, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA; (S.K.D.D.); (A.D.)
- Peggy and Charles Stephenson Cancer Center, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA
- Department of Cell Biology, University of Oklahoma Health Science Center, Oklahoma City, OK 73104, USA
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5
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Zhang Y, Yu R, Li L. LINC00641 hinders the progression of cervical cancer by targeting miR-378a-3p/CPEB3. J Gene Med 2020; 22:e3212. [PMID: 32367630 DOI: 10.1002/jgm.3212] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2019] [Revised: 02/25/2020] [Accepted: 03/09/2020] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND LINC00641 was found to act in anti-tumor manner in several types of cancers. Nonetheless, the detailed functions of LINC00641 have not been determined in cervical cancer (CC). METHODS The expression of LINC00641, miR-378a-3p and CPEB3 was examined using a quantitative reverse transcriptase-polymerase chain reaction. The relationships between LINC00641 and its downstream mechanism were illustrated by RNA pull-down and luciferase reporter experiments. RESULTS LINC00641 was found to be under-expressed in CC cell lines. By overexpressing LINC00641, cell proliferative, migratory and invasive abilities, as well as epithelial mesenchymal transition (EMT) characteristics, were inhibited, whereas the rate of apoptosis was increased. Next, a starBase search (http://starbase.sysu.edu.cn) was applied to select microRNAs that had binding sequences with LINC00641. By up-regulating LINC00641 expression, miR-378a-3p expression displayed the strongest decline. Moreover, miR-378a-3p was found to be up-regulated in CC cell lines. In addition, LINC00641 hindered the progression of CC by decreasing miR-378a-3p expression. CPEB3 was discovered as a downstream target of miR-378a-3p and was under-expressed in CC cells. Furthermore, knockdown of CPEB3 could counter the influence of an overexpression of LINC00641 with respect to CC progression. CONCLUSIONS LINC00641 suppressed the progression of CC by targeting miR-378a-3p/CPEB3, suggesting that LINC00641 may have positive therapeutic impact for treatment for CC.
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Affiliation(s)
- Yan Zhang
- Department of Obstetrics, the Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, Shandong, China
| | - Rong Yu
- Department of Obstetrics and Gynecology, Yantai Yuhuangding Hospital Laishan Branch, Yantai, Shandong, China
| | - Lei Li
- Department of Obstetrics, the Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, Shandong, China
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Hull R, Mbele M, Makhafola T, Hicks C, Wang SM, Reis RM, Mehrotra R, Mkhize-Kwitshana Z, Kibiki G, Bates DO, Dlamini Z. Cervical cancer in low and middle-income countries. Oncol Lett 2020; 20:2058-2074. [PMID: 32782524 PMCID: PMC7400218 DOI: 10.3892/ol.2020.11754] [Citation(s) in RCA: 166] [Impact Index Per Article: 41.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2019] [Accepted: 10/16/2019] [Indexed: 12/11/2022] Open
Abstract
Cervical cancer is a malignant tumour that occurs in the cervix and is classified into two histological types, adenocarcinoma and squamous cell carcinoma (SCC); SCC is more common and accounts for 70% of all cases. In 2018 there were ~569,000 new cases of cervical cancer diagnosed worldwide and ~311,000 deaths were attributed to cervical cancer. Of these, between 84 and 90% occurred in low- and middle-income countries (LMICs) such as South Africa, India, China and Brazil. The most common cause of cervical cancer is persistent infection caused by the sexually transmitted human papilloma virus. Other factors that contribute to the incidence of cervical cancer include geography, traditional practices and beliefs, the screening levels, socioeconomic status, healthcare access, public awareness, use of oral contraceptives, smoking and co-infection with HIV. An estimated 11 million women from LMICs will be diagnosed with cervical cancer in the next 10-20 years. The aim of this review was to explore various types of genetic and epigenetic factors that influence the development, progression or suppression of cervical cancer.
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Affiliation(s)
- Rodney Hull
- SA-MRC/UP Precision Prevention and Novel Drug Targets for HIV-Associated Cancers Extramural Unit, Pan African Cancer Research Institute, Faculty of Health Sciences, University of Pretoria, Hatfield 0028, South Africa
| | - Mzwandile Mbele
- SA-MRC/UP Precision Prevention and Novel Drug Targets for HIV-Associated Cancers Extramural Unit, Pan African Cancer Research Institute, Faculty of Health Sciences, University of Pretoria, Hatfield 0028, South Africa
| | - Tshepiso Makhafola
- SA-MRC/UP Precision Prevention and Novel Drug Targets for HIV-Associated Cancers Extramural Unit, Pan African Cancer Research Institute, Faculty of Health Sciences, University of Pretoria, Hatfield 0028, South Africa
| | - Chindo Hicks
- Bioinformatics and Genomics Centre, School of Medicine, Department of Genetics, Louisiana State University, New Orleans, LA 70112, USA
| | - Shao-Ming Wang
- National Cancer Centre, Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, P.R. China
| | - Rui Manuel Reis
- Molecular Oncology Research Centre, Barretos Cancer Hospital, Sao Paulo 14784-400, Brazil
| | - Ravi Mehrotra
- Indian Council of Medical Research, New Delhi, Delhi 110029, India
| | | | - Gibson Kibiki
- East African Health Research Commission, East African Community, Bujumbura, Bujumbura Mairie 350, Burundi
| | - David O Bates
- Queen's Medical Centre, University of Nottingham, Nottingham, Nottinghamshire NG7 2UH, UK
| | - Zodwa Dlamini
- SA-MRC/UP Precision Prevention and Novel Drug Targets for HIV-Associated Cancers Extramural Unit, Pan African Cancer Research Institute, Faculty of Health Sciences, University of Pretoria, Hatfield 0028, South Africa
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7
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Xu YJ, Liu PP, Ng SC, Teng ZQ, Liu CM. Regulatory networks between Polycomb complexes and non-coding RNAs in the central nervous system. J Mol Cell Biol 2020; 12:327-336. [PMID: 31291646 PMCID: PMC7288736 DOI: 10.1093/jmcb/mjz058] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2018] [Revised: 02/26/2019] [Accepted: 06/11/2019] [Indexed: 01/29/2023] Open
Abstract
High-throughput sequencing has facilitated the identification of many types of non-coding RNAs (ncRNAs) involved in diverse cellular processes. NcRNAs as epigenetic mediators play key roles in neuronal development, maintenance, and dysfunction by controlling gene expression at multiple levels. NcRNAs may not only target specific DNA or RNA for gene silence but may also directly interact with chromatin-modifying proteins like Polycomb group (PcG) proteins to drive orchestrated transcriptional programs. Recent significant progress has been made in characterizing ncRNAs and PcG proteins involved in transcriptional, post-transcriptional, and epigenetic regulation. More importantly, dysregulation of ncRNAs, PcG proteins, and interplay among them is closely associated with the pathogenesis of central nervous system (CNS) disorders. In this review, we focus on the interplay between ncRNAs and PcG proteins in the CNS and highlight the functional roles of the partnership during neural development and diseases.
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Affiliation(s)
- Ya-Jie Xu
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China
- Savaid Medical School, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Pei-Pei Liu
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China
- Institute for Stem Cell and Regeneration, Chinese Academy of Sciences, Beijing 100101, China
| | - Shyh-Chang Ng
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China
- Savaid Medical School, University of Chinese Academy of Sciences, Beijing 100049, China
- Institute for Stem Cell and Regeneration, Chinese Academy of Sciences, Beijing 100101, China
| | - Zhao-Qian Teng
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China
- Savaid Medical School, University of Chinese Academy of Sciences, Beijing 100049, China
- Institute for Stem Cell and Regeneration, Chinese Academy of Sciences, Beijing 100101, China
| | - Chang-Mei Liu
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China
- Savaid Medical School, University of Chinese Academy of Sciences, Beijing 100049, China
- Institute for Stem Cell and Regeneration, Chinese Academy of Sciences, Beijing 100101, China
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Tornesello ML, Faraonio R, Buonaguro L, Annunziata C, Starita N, Cerasuolo A, Pezzuto F, Tornesello AL, Buonaguro FM. The Role of microRNAs, Long Non-coding RNAs, and Circular RNAs in Cervical Cancer. Front Oncol 2020; 10:150. [PMID: 32154165 PMCID: PMC7044410 DOI: 10.3389/fonc.2020.00150] [Citation(s) in RCA: 135] [Impact Index Per Article: 33.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2019] [Accepted: 01/28/2020] [Indexed: 12/24/2022] Open
Abstract
Prolonged infection of uterine cervix epithelium with human papillomavirus (HPV) and constitutive expression of viral oncogenes have been recognized as the main cause of the complex molecular changes leading to transformation of cervical epithelial cells. Deregulated expression of microRNAs (miRNA), long non-coding RNAs (lncRNA), and circular RNAs (circRNA) is involved in the initiation and promotion processes of cervical cancer development. Expression profiling of small RNAs in cervical neoplasia revealed up-regulated “oncogenic” miRNAs, such as miR-10a, miR-21, miR-19, and miR-146a, and down regulated “tumor suppressive” miRNAs, including miR-29a, miR-372, miR-214, and miR-218, associated with cell growth, malignant transformation, cell migration, and invasion. Also several lncRNAs, comprising among others HOTAIR, MALAT1, GAS5, and MEG3, have shown to be associated with various pathogenic processes such as tumor progression, invasion as well as therapeutic resistance and emerged as new diagnostic and prognostic biomarkers in cervical cancer. Moreover, human genes encoded circular RNAs, such as has_circ-0018289, have shown to sponge specific miRNAs and to concur to the deregulation of target genes. Viral encoded circE7 has also demonstrated to overexpress E7 oncoprotein thus contributing to cell transformation. In this review, we summarize current literature on the complex interplay between miRNAs, lncRNAs, and circRNAs and their role in cervical neoplasia.
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Affiliation(s)
- Maria Lina Tornesello
- Molecular Biology and Viral Oncology Unit, Istituto Nazionale Tumori IRCCS "Fondazione G. Pascale", Naples, Italy
| | - Raffaella Faraonio
- Department of Molecular Medicine and Medical Biotechnology, University of Naples Federico II, Naples, Italy
| | - Luigi Buonaguro
- Cancer Immunoregulation Unit, Istituto Nazionale Tumori IRCCS "Fondazione G. Pascale", Naples, Italy
| | - Clorinda Annunziata
- Molecular Biology and Viral Oncology Unit, Istituto Nazionale Tumori IRCCS "Fondazione G. Pascale", Naples, Italy
| | - Noemy Starita
- Molecular Biology and Viral Oncology Unit, Istituto Nazionale Tumori IRCCS "Fondazione G. Pascale", Naples, Italy
| | - Andrea Cerasuolo
- Molecular Biology and Viral Oncology Unit, Istituto Nazionale Tumori IRCCS "Fondazione G. Pascale", Naples, Italy
| | - Francesca Pezzuto
- Molecular Biology and Viral Oncology Unit, Istituto Nazionale Tumori IRCCS "Fondazione G. Pascale", Naples, Italy
| | - Anna Lucia Tornesello
- Molecular Biology and Viral Oncology Unit, Istituto Nazionale Tumori IRCCS "Fondazione G. Pascale", Naples, Italy
| | - Franco Maria Buonaguro
- Molecular Biology and Viral Oncology Unit, Istituto Nazionale Tumori IRCCS "Fondazione G. Pascale", Naples, Italy
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You D, Wang D, Liu P, Chu Y, Zhang X, Ding X, Li X, Mao T, Jing X, Tian Z, Pan Y. MicroRNA-498 inhibits the proliferation, migration and invasion of gastric cancer through targeting BMI-1 and suppressing AKT pathway. Hum Cell 2020; 33:366-376. [PMID: 32056164 DOI: 10.1007/s13577-019-00313-w] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2019] [Accepted: 12/10/2019] [Indexed: 12/13/2022]
Abstract
Recently, microRNA-498 (miR-498) plays important effect in human cancers. Nonetheless, the role of miR-498 is still unclear in gastric cancer (GC). Therefore, this study was designed to investigate the function of miR-498 in GC tissues and cell lines (SGC-7901, BGC-823, MGC-803). The expressions of miR-498 and BMI-1 were examined in GC tissues via the RT-qPCR assay. The function of miR-498 was investigated through MTT and transwell assays. The relationship between miR-498 and BMI-1 was testified by dual luciferase assay. The protein expression of EMT markers, AKT pathway markers and BMI-1 was measured through western blot. The expression of miR-498 was decreased in GC tissues which predicted poor prognosis of GC patients. Moreover, functional analyses show that the overexpression of miR-498 inhibited the progression of GC. Furthermore, BMI-1 was a direct target of miR-498 which was upregulated in GC. Especially, the upregulation of BMI-1 recovered the suppressive effect of miR-498 in GC. In addition, miR-498 inhibited the metastasis and proliferation of GC cells through blocking EMT and AKT pathway. MiR-498, by targeting BMI-1, presents a plethora of tumor suppressor activities in GC cells.
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Affiliation(s)
- Dong You
- Department of Radiotherapy, Yantai Yuhuangding Hospital Affiliated to Qingdao University, Yantai, 26400, Shandong Province, China
| | - Dawei Wang
- Department of Radiotherapy, Yantai Yuhuangding Hospital Affiliated to Qingdao University, Yantai, 26400, Shandong Province, China
| | - Peiji Liu
- Department of Radiotherapy, Yantai Yuhuangding Hospital Affiliated to Qingdao University, Yantai, 26400, Shandong Province, China
| | - Yuning Chu
- Qingdao University Medical College, Qingdao, Shandong Province, China
| | - Xueying Zhang
- Qingdao University Medical College, Qingdao, Shandong Province, China
| | - Xueli Ding
- Department of Gastroenterology, The Affiliated Hospital of Qingdao University, Qingdao, 266003, Shandong Province, China
| | - Xiaoyu Li
- Department of Gastroenterology, The Affiliated Hospital of Qingdao University, Qingdao, 266003, Shandong Province, China
| | - Tao Mao
- Department of Gastroenterology, The Affiliated Hospital of Qingdao University, Qingdao, 266003, Shandong Province, China
| | - Xue Jing
- Department of Gastroenterology, The Affiliated Hospital of Qingdao University, Qingdao, 266003, Shandong Province, China
| | - Zibin Tian
- Department of Gastroenterology, The Affiliated Hospital of Qingdao University, Qingdao, 266003, Shandong Province, China
| | - Yinghua Pan
- Department of Radiology, Yantai Yuhuangding Hospital Affiliated to Qingdao University, East of Yuhuangding Road, Yantai, 26400, Shandong Province, China.
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10
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Luo L, Wang M, Li X, Tian J, Zhang K, Tan S, Luo C. Long non-coding RNA LOC285194 in cancer. Clin Chim Acta 2019; 502:1-8. [PMID: 31837299 DOI: 10.1016/j.cca.2019.12.004] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2019] [Revised: 11/27/2019] [Accepted: 12/03/2019] [Indexed: 02/07/2023]
Abstract
Long non-coding RNAs (lncRNAs) are non-protein-encoding RNAs that are usually over 200 nucleotides-long. The development of whole-genome sequencing has enabled the identification of several lncRNAs, and the determination of their critical roles in the human tumor process. LOC285194, also known as LSAMP antisense RNA 3 and tumor suppressor candidate 7 (TUSC7), is a >2-kb-long lncRNA comprised of four exons (gene ID: 285194), and located in chr3q13.31. LOC285194 expression is reported to be consistently low in tumor cells and often associated with poor clinical outcomes. Functionally, LOC285194 overexpression has been shown to inhibit cell proliferation, invasion, and migration in vitro and in vivo. Further, LOC285194 mainly suppressed or promoted the expression of related genes through direct or indirect pathways, suggesting that LOC285194 might be a feasible biomarker or therapeutic target in human cancers. Here, we reviewed and summarized existing literature on the functions and mechanisms of LOC285194 in human cancers.
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Affiliation(s)
- Lingli Luo
- Department of Laboratory Medicine, The Second Xiangya Hospital, Central South University, Changsha, Hunan 410011, China.
| | - Min Wang
- Department of Laboratory Medicine, The Second Xiangya Hospital, Central South University, Changsha, Hunan 410011, China.
| | - Xianping Li
- Department of Laboratory Medicine, The Second Xiangya Hospital, Central South University, Changsha, Hunan 410011, China.
| | - Jingjing Tian
- Department of Laboratory Medicine, The Second Xiangya Hospital, Central South University, Changsha, Hunan 410011, China.
| | - Kan Zhang
- Department of Laboratory Medicine, The Second Xiangya Hospital, Central South University, Changsha, Hunan 410011, China.
| | - Shan Tan
- Department of Laboratory Medicine, The Second Xiangya Hospital, Central South University, Changsha, Hunan 410011, China.
| | - Can Luo
- Department of Laboratory Medicine, The Second Xiangya Hospital, Central South University, Changsha, Hunan 410011, China.
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11
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Lou W, Ding B, Fan W. High Expression of Pseudogene PTTG3P Indicates a Poor Prognosis in Human Breast Cancer. MOLECULAR THERAPY-ONCOLYTICS 2019; 14:15-26. [PMID: 31011629 PMCID: PMC6463746 DOI: 10.1016/j.omto.2019.03.006] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/01/2018] [Accepted: 03/13/2019] [Indexed: 01/16/2023]
Abstract
Pseudogenes play pivotal roles in tumorigenesis. Previous studies have suggested that pituitary tumor-transforming 3, pseudogene (PTTG3P), serves as an oncogene in human cancers. However, its expression pattern, biological function, and underlying mechanism in breast cancer remain unknown. In this study, we demonstrated an elevated expression of PTTG3P in breast cancer and discovered that PTTG3P expression correlated negatively with estrogen receptor (ER) and progesterone receptor (PR) status, but linked positively to basal-like status, triple-negative breast cancer status, Nottingham prognostic index (NPI), and Scarff-Bloom-Richardson grade. High expression of PTTG3P was also found to be associated with a poor prognosis of breast cancer. To explore the potential mechanisms of PTTG3P, a PTTG3P-microRNA (miRNA)-mRNA regulatory network was established. Co-expressed genes of PTTG3P were also obtained. Enrichment analysis for these co-expressed genes revealed that they were significantly enriched in mitotic nuclear division and cell cycle. Subsequent research on mechanism of PTTG3P indicated that its expression correlated positively with PTTG1 expression. However, no significant expression correlation between PTTG3P and PTTG2 was observed. Taken together, our findings suggest that increased expression of pseudogene PTTG3P may be used as a promising prognostic biomarker and novel therapeutic target for breast cancer.
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Affiliation(s)
- Weiyang Lou
- Program of Innovative Cancer Therapeutics, Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou 310003, China.,Key Laboratory of Organ Transplantation, Zhejiang Province, Hangzhou 310003, China.,Key Laboratory of Combined Multi-organ Transplantation, Ministry of Public Health, Hangzhou 310000, China
| | - Bisha Ding
- Program of Innovative Cancer Therapeutics, Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou 310003, China.,Key Laboratory of Organ Transplantation, Zhejiang Province, Hangzhou 310003, China.,Key Laboratory of Combined Multi-organ Transplantation, Ministry of Public Health, Hangzhou 310000, China
| | - Weimin Fan
- Program of Innovative Cancer Therapeutics, Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou 310003, China.,Key Laboratory of Organ Transplantation, Zhejiang Province, Hangzhou 310003, China.,Key Laboratory of Combined Multi-organ Transplantation, Ministry of Public Health, Hangzhou 310000, China.,Department of Pathology and Laboratory Medicine, Medical University of South Carolina, Charleston, SC 29425, USA
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12
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Nahand JS, Taghizadeh-Boroujeni S, Karimzadeh M, Borran S, Pourhanifeh MH, Moghoofei M, Bokharaei-Salim F, Karampoor S, Jafari A, Asemi Z, Tbibzadeh A, Namdar A, Mirzaei H. microRNAs: New prognostic, diagnostic, and therapeutic biomarkers in cervical cancer. J Cell Physiol 2019; 234:17064-17099. [PMID: 30891784 DOI: 10.1002/jcp.28457] [Citation(s) in RCA: 140] [Impact Index Per Article: 28.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2018] [Revised: 01/24/2019] [Accepted: 01/28/2019] [Indexed: 12/11/2022]
Abstract
Cervical cancer is as a kind of cancer beginning from the cervix. Given that cervical cancer could be observed in women who infected with papillomavirus, regular oral contraceptives, and multiple pregnancies. Early detection of cervical cancer is one of the most important aspects of the therapy of this malignancy. Despite several efforts, finding and developing new biomarkers for cervical cancer diagnosis are required. Among various prognostic, diagnostic, and therapeutic biomarkers, miRNA have been emerged as powerful biomarkers for detection, treatment, and monitoring of response to therapy in cervical cancer. Here, we summarized various miRNAs as an employable platform for prognostic, diagnostic, and therapeutic biomarkers in the treatment of cervical cancer.
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Affiliation(s)
- Javid Sadri Nahand
- Department of Virology, Student Research Committee, Faculty of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Sima Taghizadeh-Boroujeni
- Blood Transfusion Research Center, High Institute for Research and Education in Transfusion Medicine, Brujen, Iran
| | - Mohammad Karimzadeh
- Department of Virology, Student Research Committee, Faculty of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Sarina Borran
- School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mohammad Hossein Pourhanifeh
- Research Center for Biochemistry and Nutrition in Metabolic Diseases, Kashan University of Medical Sciences, Kashan, Iran
| | - Mohsen Moghoofei
- Department of Microbiology, Faculty of Medicine, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Farah Bokharaei-Salim
- Department of Virology, Student Research Committee, Faculty of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Sajad Karampoor
- Department of Virology, Student Research Committee, Faculty of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Amir Jafari
- Department of Medical Nanotechnology, Faculty of Advanced Technology in Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Zatollah Asemi
- Research Center for Biochemistry and Nutrition in Metabolic Diseases, Kashan University of Medical Sciences, Kashan, Iran
| | - Alireza Tbibzadeh
- Department of Virology, Student Research Committee, Faculty of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Afshin Namdar
- Department of Dentistry, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Canada
| | - Hamed Mirzaei
- Research Center for Biochemistry and Nutrition in Metabolic Diseases, Kashan University of Medical Sciences, Kashan, Iran
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13
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The role of miRNAs in the invasion and metastasis of cervical cancer. Biosci Rep 2019; 39:BSR20181377. [PMID: 30833362 PMCID: PMC6418402 DOI: 10.1042/bsr20181377] [Citation(s) in RCA: 52] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2018] [Revised: 02/18/2019] [Accepted: 03/01/2019] [Indexed: 12/13/2022] Open
Abstract
Cervical cancer (CC) with early metastasis of the primary tumor results in poor prognosis and poor therapeutic outcomes. MicroRNAs (miRNAs) are small, noncoding RNA molecules that play a substantial role in regulating gene expression post-transcriptionally and influence the development and progression of tumors. Numerous studies have discovered that miRNAs play significant roles in the invasion and metastasis of CC by affecting specific pathways, including Notch, Wnt/β-catenin, and phosphoinositide-3 kinase (PI3K)-Akt pathways. miRNAs also effectively modulate the process of epithelial–mesenchymal transition. Many studies provide new insights into the role of miRNAs and the pathogenesis of metastatic CC. In this review, we will offer an overview and update of our present understanding of the potential roles of miRNAs in metastatic CC.
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14
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Camp E, Pribadi C, Anderson PJ, Zannettino AC, Gronthos S. miRNA-376c-3p Mediates TWIST-1 Inhibition of Bone Marrow-Derived Stromal Cell Osteogenesis and Can Reduce Aberrant Bone Formation of TWIST-1 Haploinsufficient Calvarial Cells. Stem Cells Dev 2018; 27:1621-1633. [DOI: 10.1089/scd.2018.0083] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Affiliation(s)
- Esther Camp
- Mesenchymal Stem Cell Laboratory, Faculty of Health and Medical Sciences, Adelaide Medical School, The University of Adelaide, Adelaide, Australia
- South Australian Health and Medical Research Institute, Adelaide, Australia
| | - Clara Pribadi
- Mesenchymal Stem Cell Laboratory, Faculty of Health and Medical Sciences, Adelaide Medical School, The University of Adelaide, Adelaide, Australia
- South Australian Health and Medical Research Institute, Adelaide, Australia
| | - Peter J. Anderson
- Mesenchymal Stem Cell Laboratory, Faculty of Health and Medical Sciences, Adelaide Medical School, The University of Adelaide, Adelaide, Australia
- South Australian Health and Medical Research Institute, Adelaide, Australia
- Australian Craniofacial Unit, Faculty of Health and Medical Sciences, Adelaide Medical School and Dentistry, Women's and Children's Hospital, The University of Adelaide, Adelaide, Australia
| | - Andrew C.W. Zannettino
- South Australian Health and Medical Research Institute, Adelaide, Australia
- Myeloma Research Laboratory, Faculty of Health and Medical Sciences, Adelaide Medical School, The University of Adelaide, Adelaide, Australia
| | - Stan Gronthos
- Mesenchymal Stem Cell Laboratory, Faculty of Health and Medical Sciences, Adelaide Medical School, The University of Adelaide, Adelaide, Australia
- South Australian Health and Medical Research Institute, Adelaide, Australia
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15
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Bhavsar SP, Løkke C, Flægstad T, Einvik C. Hsa-miR-376c-3p targets Cyclin D1 and induces G1-cell cycle arrest in neuroblastoma cells. Oncol Lett 2018; 16:6786-6794. [PMID: 30405823 DOI: 10.3892/ol.2018.9431] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2017] [Accepted: 07/05/2018] [Indexed: 12/19/2022] Open
Abstract
High-risk neuroblastoma is the most aggressive form of cancer in children. The estimated survival of children with high-risk neuroblastoma is 40-50% compared with low and intermediate risk neuroblastoma, which is >98 and 90-95%, respectively. In addition, patients with high-risk neuroblastoma often experience relapse following intensive treatments with standard chemotherapeutic drugs. Therefore alternative strategies are required to address this problem. MicroRNAs (miRNAs/miRs) are small, endogenously expressed non-coding RNAs, which when deregulated have been demonstrated to serve significant roles in the tumorigenesis of a number of different types of cancer. Results from a previous deep sequencing study identified 22 downregulated miRNAs from the 14q32 miRNA cluster differentially expressed in neuroblastoma cell lines isolated from 6 patients at diagnosis and at relapse following intensive treatments. miR-376c-3p is one of the 22 miRNAs that was downregulated in the majority of the cell lines isolated from patients post treatment. The present study employed reverse transcription-quantitative polymerase chain reaction (RT-qPCR) to quantify the basic expression of miR-376c-3p in 6 neuroblastoma cell lines. The functional role of miR-376c-3p in the neuroblastoma cell lines was evaluated by alamar blue-cell viability and propidium iodide-flow cytometric assays. In addition, luciferase reporter assays, RT-qPCR and western blotting were performed to identify and quantify the targets of miR-376c-3p in neuroblastoma cell lines. Ectopic expression of miR-376c-3p led to significant inhibition of cell viability and G1-cell cycle arrest in multiple neuroblastoma cell lines by reducing the expression of cyclin D1, an oncogene critical for neuroblastoma pathogenesis. The results of the present study provide novel insights into the functional role of miR-376c-3p and suggest new approaches for the treatment of neuroblastoma.
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Affiliation(s)
- Swapnil Parashram Bhavsar
- Pediatric Research Group, Department of Clinical Medicine, Faculty of Health Science, The Arctic University of Norway-UiT, NO-9037 Tromsø, Norway
| | - Cecilie Løkke
- Pediatric Research Group, Department of Clinical Medicine, Faculty of Health Science, The Arctic University of Norway-UiT, NO-9037 Tromsø, Norway
| | - Trond Flægstad
- Pediatric Research Group, Department of Clinical Medicine, Faculty of Health Science, The Arctic University of Norway-UiT, NO-9037 Tromsø, Norway.,Department of Pediatrics, Division of Child and Adolescent Health, University Hospital of North-Norway, NO-9038 Tromsø, Norway
| | - Christer Einvik
- Pediatric Research Group, Department of Clinical Medicine, Faculty of Health Science, The Arctic University of Norway-UiT, NO-9037 Tromsø, Norway.,Department of Pediatrics, Division of Child and Adolescent Health, University Hospital of North-Norway, NO-9038 Tromsø, Norway
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16
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Dong J, Wang M, Ni D, Zhang L, Wang W, Cui X, Fu S, Yao S. MicroRNA-217 functions as a tumor suppressor in cervical cancer cells through targeting Rho-associated protein kinase 1. Oncol Lett 2018; 16:5535-5542. [PMID: 30344707 PMCID: PMC6176250 DOI: 10.3892/ol.2018.9335] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2016] [Accepted: 11/30/2017] [Indexed: 12/13/2022] Open
Abstract
The abnormal expression of microRNAs (miRNAs/miRs) has been widely reported in various tumor types. miR-217 was demonstrated to be aberrantly expressed in a number of tumors, including pancreatic adenocarcinoma and osteosarcoma; however, its specific expression pattern has never been investigated in cervical cancer cells. Compared with normal control, the level of Rho-associated protein kinase 1 (ROCK1) expression was markedly increased in cervical cancer tissues and cells compared with that in non-cancerous tissues and cells. The expression of miR-217 was significantly reduced in cervical cancer tissues and cell lines. Overexpression of miR-217 could suppress colony formation and the cell invasion capacity of SiHa and HeLa cells. Flow cytometry indicated that miR-217 significantly increased cell apoptosis in SiHa and HeLa cells. Dual-luciferase reporter assays demonstrated that ROCK1 was a target gene of miR-217. In addition, overexpression of ROCK1 also led to an increased invasion capacity in SiHa cells, even when miR-217 was inhibited, indicating that the anti-invasive effects of miR-217 were mediated through ROCK1. In summary, the results of the present study indicated that miR-217 functions as a tumor suppressor in cervical cancer cells, primarily by targeting ROCK1.
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Affiliation(s)
- Jing Dong
- Department of Obstetrics and Gynecology, Jining Medical University Affiliated Tengzhou Central People's Hospital, Tengzhou, Shandong 277500, P.R. China
| | - Maoxiu Wang
- Department of Obstetrics and Gynecology, Jining Medical University Affiliated Tengzhou Central People's Hospital, Tengzhou, Shandong 277500, P.R. China
| | - Donghua Ni
- Department of Obstetrics and Gynecology, Jining Medical University Affiliated Tengzhou Central People's Hospital, Tengzhou, Shandong 277500, P.R. China
| | - Lixin Zhang
- Department of Obstetrics and Gynecology, Jining Medical University Affiliated Tengzhou Central People's Hospital, Tengzhou, Shandong 277500, P.R. China
| | - Wen Wang
- Department of Obstetrics and Gynecology, Jining Medical University Affiliated Tengzhou Central People's Hospital, Tengzhou, Shandong 277500, P.R. China.,Department of Obstetrics and Gynecology, Qilu Hospital, Shandong University, Jinan, Shandong 250012, P.R. China
| | - Xiujuan Cui
- Department of Obstetrics and Gynecology, Jining Medical University Affiliated Tengzhou Central People's Hospital, Tengzhou, Shandong 277500, P.R. China
| | - Shijie Fu
- Deparment of Clinical Medicine, Anhui Medical University, Meishan Road, Hefei, Anhui 230032, P.R. China
| | - Shujuan Yao
- Department of Obstetrics and Gynecology, Jining Medical University Affiliated Tengzhou Central People's Hospital, Tengzhou, Shandong 277500, P.R. China
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17
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M JR, S V. BMI1 and PTEN are key determinants of breast cancer therapy: A plausible therapeutic target in breast cancer. Gene 2018; 678:302-311. [PMID: 30096458 DOI: 10.1016/j.gene.2018.08.022] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2018] [Revised: 07/11/2018] [Accepted: 08/04/2018] [Indexed: 12/12/2022]
Abstract
BMI-1 (B-lymphoma Mo-MLV insertion region 1) is a key protein partner in polycomb repressive complex 1 (PRC1) that helps in maintaining the integrity of the complex. It is also a key player in ubiquitination of histone H2A which affects gene expression pattern involved in various cellular processes such as cell proliferation, growth, DNA repair, apoptosis and senescence. In many cancers, Overexpression of BMI1correlates with advanced stages of disease, aggressive clinicopathological behavior, poor prognosis resistance to radiation and chemotherapy. BMI1 is emerging as a key player in EMT, chemo-resistance and cancer stemness. Overexpression is observed in various cancer types such as breast, primary hepatocellular carcinoma (HCC), gastric, ovarian, head and neck, pancreatic and lung cancer. Studies have shown that experimental reduction of BMI protein level in tumor cells results in inhibition of cell proliferation, induction of apoptosis and/or senescence, and increases susceptibility to cytotoxic agents and radiation therapy. Thus, inhibition of BMI1 expression particularly in breast cancer stem cells can be used as a potential strategy for the complete elimination of tumor and to prevent disease relapse. On other hand PTEN is known to be an important tumor suppressor next to p53. In many cancers particularly in breast cancer, p53 and PTEN undergo mutations. Studies have indicated the functional and mechanistic link between the BMI-1oncoprotein and tumor suppressor PTEN in the development and progression of cancer. The current review focuses on recent findings of how oncogenicity and chemo-resistance are caused by BMI1. It also highlights the transcriptional regulation between BMI1 and PTEN that dictates the therapeutic outcome in cancers where the functional p53 is absent. Herein, we have clearly demonstrated the regulation of transcription at genomic loci of BMI1 and PTEN in cancerous tissue or cells and the possible epigenetic regulation by histone deacetylase inhibitors (HDACi) at BMI1 and PTEN loci that may provide some clue for the possible therapy against TNBC in near future.
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Affiliation(s)
- Janaki Ramaiah M
- School of Chemical and Biotechnology, SASTRA Deemed University, Tirumalaisamudram, Thanjavur 613401, India.
| | - Vaishnave S
- School of Chemical and Biotechnology, SASTRA Deemed University, Tirumalaisamudram, Thanjavur 613401, India
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18
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Tan Y, Xiao D, Xu Y, Wang C. Long non-coding RNA DLX6-AS1 is upregulated in preeclampsia and modulates migration and invasion of trophoblasts through the miR-376c/GADD45A axis. Exp Cell Res 2018; 370:718-724. [PMID: 30055134 DOI: 10.1016/j.yexcr.2018.07.039] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2018] [Revised: 07/23/2018] [Accepted: 07/24/2018] [Indexed: 12/20/2022]
Abstract
Long non-coding RNA (lncRNA) are key regulatory molecules that are implicated in diverse biological processes and human diseases, including preeclampsia. However, their expression and functions in the progression of preeclampsia remains largely unclear. In this study, lncRNA DLX6-AS1 was confirmed to be significantly upregulated in the placentas of patients with preeclampsia, compared with normal controls. Overexpression of DLX6-AS1 dramatically decreased proliferation, migration and invasion in trophoblast JEG3 and HTR-8/SVneo cells. Luciferase activity and RNA pull-down assays showed that DLX6-AS1 interacted with miR-376c, and that overexpression of DLX6-AS1 significantly reduced expression of miR-376c in HTR-8/SVneo cells. Also, miR-376c targeted and downregulated GADD45A in HTR-8/SVneo cells. Overexpression of GADD45A effectively attenuated a miR-376c-induced increase in the proliferation, migration and invasion of HTR-8/SVneo cells. Further research showed that DLX6-AS1-induced inhibition of trophoblast proliferation, migration and invasion was effectively neutralized by GADD45A knockdown and miR-376c overexpression. Taken together, these findings suggest that DLX6-AS1 may contribute to preeclampsia by impairing proliferative, migratory and invasive abilities of trophoblasts via the miR-376c/GADD45A axis.
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Affiliation(s)
- Yan Tan
- Department of Gynecology and Obstetrics, Affiliated Shenzhen Maternity & Child Healthcare Hospital, Southern Medical University (Shenzhen Maternity & Child Healthcare Hospital), Shenzhen 518028, Guangdong, China
| | - Di Xiao
- Department of Gynecology and Obstetrics, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou 510150, Guangdong, China
| | - Yanbin Xu
- Department of Gynecology and Obstetrics, Affiliated Shenzhen Maternity & Child Healthcare Hospital, Southern Medical University (Shenzhen Maternity & Child Healthcare Hospital), Shenzhen 518028, Guangdong, China
| | - Chenhong Wang
- Department of Gynecology and Obstetrics, Affiliated Shenzhen Maternity & Child Healthcare Hospital, Southern Medical University (Shenzhen Maternity & Child Healthcare Hospital), Shenzhen 518028, Guangdong, China; Department of Gynecology and Obstetrics, Shenzhen Hospital, Southern Medical University, Shenzhen 518000, Guangdong, China.
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19
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Srivastava SK, Ahmad A, Zubair H, Miree O, Singh S, Rocconi RP, Scalici J, Singh AP. MicroRNAs in gynecological cancers: Small molecules with big implications. Cancer Lett 2017; 407:123-138. [PMID: 28549791 PMCID: PMC5601032 DOI: 10.1016/j.canlet.2017.05.011] [Citation(s) in RCA: 75] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2017] [Revised: 05/10/2017] [Accepted: 05/15/2017] [Indexed: 12/14/2022]
Abstract
Gynecological cancers (GCs) are often diagnosed at advanced stages, limiting the efficacy of available therapeutic options. Thus, there remains an urgent and unmet need for innovative research for the efficient clinical management of GC patients. Research over past several years has revealed the enormous promise of miRNAs. These small non-coding RNAs can aid in the diagnosis, prognosis and therapy of all major GCs, viz., ovarian cancers, cervical cancers and endometrial cancers. Mechanistic details of the miRNAs-mediated regulation of multiple biological functions are under constant investigation, and a number of miRNAs are now believed to influence growth, proliferation, invasion, metastasis, chemoresistance and the relapse of different GCs. Modulation of tumor microenvironment by miRNAs can possibly explain some of their reported biological effects. miRNA signatures have been proposed as biomarkers for the early detection of GCs, even the various subtypes of individual GCs. miRNA signatures are also being pursued as predictors of response to therapies. This review catalogs the knowledge gained from collective studies, so as to assess the progress made so far. It is time to ponder over the knowledge gained, so that more meaningful pre-clinical and translational studies can be designed to better realize the potential that miRNAs have to offer.
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Affiliation(s)
- Sanjeev K Srivastava
- Department of Oncologic Sciences, Mitchell Cancer Institute, University of South Alabama, Mobile, AL 36604, USA.
| | - Aamir Ahmad
- Department of Oncologic Sciences, Mitchell Cancer Institute, University of South Alabama, Mobile, AL 36604, USA
| | - Haseeb Zubair
- Department of Oncologic Sciences, Mitchell Cancer Institute, University of South Alabama, Mobile, AL 36604, USA
| | - Orlandric Miree
- Department of Oncologic Sciences, Mitchell Cancer Institute, University of South Alabama, Mobile, AL 36604, USA
| | - Seema Singh
- Department of Oncologic Sciences, Mitchell Cancer Institute, University of South Alabama, Mobile, AL 36604, USA; Department of Biochemistry and Molecular Biology, College of Medicine, University of South Alabama, Mobile, AL 36688, USA
| | - Rodney P Rocconi
- Division of Gynecologic Oncology, Mitchell Cancer Institute, University of South Alabama, Mobile, AL 36604, USA
| | - Jennifer Scalici
- Division of Gynecologic Oncology, Mitchell Cancer Institute, University of South Alabama, Mobile, AL 36604, USA
| | - Ajay P Singh
- Department of Oncologic Sciences, Mitchell Cancer Institute, University of South Alabama, Mobile, AL 36604, USA; Department of Biochemistry and Molecular Biology, College of Medicine, University of South Alabama, Mobile, AL 36688, USA.
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20
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Li X, Zhou Q, Tao L, Yu C. MicroRNA-106a promotes cell migration and invasion by targeting tissue inhibitor of matrix metalloproteinase 2 in cervical cancer. Oncol Rep 2017; 38:1774-1782. [DOI: 10.3892/or.2017.5832] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2016] [Accepted: 06/28/2017] [Indexed: 11/05/2022] Open
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21
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Zhang X, Wei C, Li J, Liu J, Qu J. MicroRNA-194 represses glioma cell epithelial‑to‑mesenchymal transition by targeting Bmi1. Oncol Rep 2017; 37:1593-1600. [PMID: 28098896 DOI: 10.3892/or.2017.5376] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2016] [Accepted: 01/03/2017] [Indexed: 11/06/2022] Open
Abstract
MicroRNA-194 (miR-194) is frequently dysregulated in many types of cancer. However, the function of miR-194 in glioma remains unknown. In the present study, we aimed to investigate the biological functions of miR-194 in glioma and the potential molecular mechanism of miR-194 involved in glioma progression. We found that miR-194 expression was significantly reduced in glioma specimens and cell lines, as detected by real-time quantitative polymerase chain reaction (RT-qPCR) analysis. The overexpression of miR-194 inhibited while the suppression of miR-194 promoted cell migration, invasion and epithelial mesenchymal transition (EMT) in glioma cells. Bioinformatics analysis showed that the B cell-specific moloney murine leukemia virus insertion site 1 (Bmi1) was a direct target of miR-194, which was validated by dual-luciferase reporter assay, RT-qPCR and western blot analysis. The restoration of Bmi1 expression significantly abrogated the suppressive effect of miR-194 on glioma cell EMT. Taken together, the present study suggests that miR-194 inhibits glioma cell EMT by targeting Bmi1 providing novel insights into understanding the pathogenesis of glioma. The restoration of miR-194 may be a potential therapeutic strategy for glioma treatment.
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Affiliation(s)
- Xi Zhang
- Department of Neurosurgery, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710004, P.R. China
| | - Chunyan Wei
- Department of Gynaecology and Obstetrics, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710004, P.R. China
| | - Jin Li
- Department of Neurosurgery, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710004, P.R. China
| | - Jiali Liu
- Clinical Laboratory, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710004, P.R. China
| | - Jianqiang Qu
- Department of Neurosurgery, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710004, P.R. China
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