1
|
Wu HH, Leng S, Sergi C, Leng R. How MicroRNAs Command the Battle against Cancer. Int J Mol Sci 2024; 25:5865. [PMID: 38892054 PMCID: PMC11172831 DOI: 10.3390/ijms25115865] [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: 04/24/2024] [Revised: 05/23/2024] [Accepted: 05/26/2024] [Indexed: 06/21/2024] Open
Abstract
MicroRNAs (miRNAs) are small RNA molecules that regulate more than 30% of genes in humans. Recent studies have revealed that miRNAs play a crucial role in tumorigenesis. Large sets of miRNAs in human tumors are under-expressed compared to normal tissues. Furthermore, experiments have shown that interference with miRNA processing enhances tumorigenesis. Multiple studies have documented the causal role of miRNAs in cancer, and miRNA-based anticancer therapies are currently being developed. This review primarily focuses on two key points: (1) miRNAs and their role in human cancer and (2) the regulation of tumor suppressors by miRNAs. The review discusses (a) the regulation of the tumor suppressor p53 by miRNA, (b) the critical role of the miR-144/451 cluster in regulating the Itch-p63-Ago2 pathway, and (c) the regulation of PTEN by miRNAs. Future research and the perspectives of miRNA in cancer are also discussed. Understanding these pathways will open avenues for therapeutic interventions targeting miRNA regulation.
Collapse
Affiliation(s)
- Hong Helena Wu
- 370 Heritage Medical Research Center, Department of Laboratory Medicine and Pathology, University of Alberta, Edmonton, AB T6G 2S2, Canada;
| | - Sarah Leng
- Department of Laboratory Medicine and Pathology (5B4. 09), University of Alberta, Edmonton, AB T6G 2B7, Canada (C.S.)
| | - Consolato Sergi
- Department of Laboratory Medicine and Pathology (5B4. 09), University of Alberta, Edmonton, AB T6G 2B7, Canada (C.S.)
- Division of Anatomical Pathology, Children’s Hospital of Eastern Ontario (CHEO), University of Ottawa, 401 Smyth Road, Ottawa, ON K1H 8L1, Canada
| | - Roger Leng
- 370 Heritage Medical Research Center, Department of Laboratory Medicine and Pathology, University of Alberta, Edmonton, AB T6G 2S2, Canada;
| |
Collapse
|
2
|
Hamidi AA, Taghehchian N, Zangouei AS, Akhlaghipour I, Maharati A, Basirat Z, Moghbeli M. Molecular mechanisms of microRNA-216a during tumor progression. Cancer Cell Int 2023; 23:19. [PMID: 36740668 PMCID: PMC9899407 DOI: 10.1186/s12935-023-02865-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2023] [Accepted: 02/02/2023] [Indexed: 02/07/2023] Open
Abstract
MicroRNAs (miRNAs) as the members of non-coding RNAs family are involved in post-transcriptional regulation by translational inhibiting or mRNA degradation. They have a critical role in regulation of cell proliferation and migration. MiRNAs aberrations have been reported in various cancers. Considering the importance of these factors in regulation of cellular processes and their high stability in body fluids, these factors can be suggested as suitable non-invasive markers for the cancer diagnosis. MiR-216a deregulation has been frequently reported in different cancers. Therefore, in the present review we discussed the molecular mechanisms of the miR-216a during tumor progression. It has been reported that miR-216a mainly functioned as a tumor suppressor through the regulation of signaling pathways and transcription factors. This review paves the way to suggest the miR-216a as a probable therapeutic and diagnostic target in cancer patients.
Collapse
Affiliation(s)
- Amir Abbas Hamidi
- grid.411583.a0000 0001 2198 6209Student Research Committee, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Negin Taghehchian
- grid.411583.a0000 0001 2198 6209Medical Genetics Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Amir Sadra Zangouei
- grid.411583.a0000 0001 2198 6209Student Research Committee, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Iman Akhlaghipour
- grid.411583.a0000 0001 2198 6209Student Research Committee, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Amirhosein Maharati
- grid.411583.a0000 0001 2198 6209Student Research Committee, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Zahra Basirat
- grid.411583.a0000 0001 2198 6209Medical Genetics Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Meysam Moghbeli
- grid.411583.a0000 0001 2198 6209Medical Genetics Research Center, Mashhad University of Medical Sciences, Mashhad, Iran ,grid.411583.a0000 0001 2198 6209Department of Medical Genetics and Molecular Medicine, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| |
Collapse
|
3
|
Ismail A, Abulsoud AI, Fathi D, Elshafei A, El-Mahdy HA, Elsakka EG, Aglan A, Elkhawaga SY, Doghish AS. The role of miRNAs in Ovarian Cancer Pathogenesis and Therapeutic Resistance - A Focus on Signaling Pathways Interplay. Pathol Res Pract 2022; 240:154222. [DOI: 10.1016/j.prp.2022.154222] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Revised: 11/09/2022] [Accepted: 11/12/2022] [Indexed: 11/17/2022]
|
4
|
Moghbeli M, Zangouei AS, Nasrpour Navaii Z, Taghehchian N. Molecular mechanisms of the microRNA-132 during tumor progressions. Cancer Cell Int 2021; 21:439. [PMID: 34419060 PMCID: PMC8379808 DOI: 10.1186/s12935-021-02149-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Accepted: 08/13/2021] [Indexed: 12/21/2022] Open
Abstract
Cancer as one of the leading causes of human deaths has always been one of the main health challenges in the world. Despite recent advances in therapeutic and diagnostic methods, there is still a high mortality rate among cancer patients. Late diagnosis is one of the main reasons for the high ratio of cancer related deaths. Therefore, it is required to introduce novel early detection methods. Various molecular mechanisms are associated with the tumor progression and metastasis. MicroRNAs (miRNAs) are a class of non-coding RNAs (ncRNAs) family that has important functions in regulation of the cellular processes such as cell proliferation, apoptosis, and tumor progression. Moreover, they have higher stability in body fluids compared with mRNAs which can be introduced as non-invasive diagnostic markers in cancer patients. MiR-132 has important functions as tumor suppressor or oncogene in different cancers. In the present review, we have summarized all of the studies which have been reported the role of miR-132 during tumor progressions. We categorized the miR-132 target genes based on their cell and molecular functions. Although, it has been reported that the miR-132 mainly functions as a tumor suppressor, it has also oncogenic functions especially in pancreatic tumors. MiR-132 mainly exerts its roles during tumor progressions by regulation of the transcription factors and signaling pathways. Present review clarifies the tumor specific molecular mechanisms of miR-132 to introduce that as an efficient non-invasive diagnostic marker in various cancers.
Collapse
Affiliation(s)
- Meysam Moghbeli
- Department of Medical Genetics and Molecular Medicine, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.
| | - Amir Sadra Zangouei
- Student Research Committee, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Zahra Nasrpour Navaii
- Department of Medical Genetics and Molecular Medicine, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Negin Taghehchian
- Department of Chemistry, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran
| |
Collapse
|
5
|
Radu MR, Prădatu A, Duică F, Micu R, Creţoiu SM, Suciu N, Creţoiu D, Varlas VN, Rădoi VE. Ovarian Cancer: Biomarkers and Targeted Therapy. Biomedicines 2021; 9:693. [PMID: 34207450 PMCID: PMC8235073 DOI: 10.3390/biomedicines9060693] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Revised: 06/04/2021] [Accepted: 06/16/2021] [Indexed: 12/25/2022] Open
Abstract
Ovarian cancer is one of the most common causes of death in women as survival is highly dependent on the stage of the disease. Ovarian cancer is typically diagnosed in the late stage due to the fact that in the early phases is mostly asymptomatic. Genomic instability is one of the hallmarks of ovarian cancer. While ovarian cancer is stratified into different clinical subtypes, there still exists extensive genetic and progressive diversity within each subtype. Early detection of the disorder is one of the most important steps that facilitate a favorable prognosis and a good response to medical therapy for the patients. In targeted therapies, individual patients are treated by agents targeting the changes in tumor cells that help them grow, divide and spread. Currently, in gynecological malignancies, potential therapeutic targets include tumor-intrinsic signaling pathways, angiogenesis, homologous-recombination deficiency, hormone receptors, and immunologic factors. Ovarian cancer is usually diagnosed in the final stages, partially due to the absence of an effective screening strategy, although, over the times, numerous biomarkers have been studied and used to assess the status, progression, and efficacy of the drug therapy in this type of disorder.
Collapse
Affiliation(s)
- Mihaela Raluca Radu
- Fetal Medicine Excellence Research Center, Alessandrescu-Rusescu National Institute for Mother and Child Health, 020395 Bucharest, Romania; (M.R.R.); (A.P.); (F.D.); (N.S.)
| | - Alina Prădatu
- Fetal Medicine Excellence Research Center, Alessandrescu-Rusescu National Institute for Mother and Child Health, 020395 Bucharest, Romania; (M.R.R.); (A.P.); (F.D.); (N.S.)
| | - Florentina Duică
- Fetal Medicine Excellence Research Center, Alessandrescu-Rusescu National Institute for Mother and Child Health, 020395 Bucharest, Romania; (M.R.R.); (A.P.); (F.D.); (N.S.)
| | - Romeo Micu
- Department of Mother and Child, Iuliu Hatieganu University of Medicine and Pharmacy, 400012 Cluj-Napoca, Romania;
| | - Sanda Maria Creţoiu
- Department of Cell and Molecular Biology and Histology, Carol Davila University of Medicine and Pharmacy, 050474 Bucharest, Romania;
| | - Nicolae Suciu
- Fetal Medicine Excellence Research Center, Alessandrescu-Rusescu National Institute for Mother and Child Health, 020395 Bucharest, Romania; (M.R.R.); (A.P.); (F.D.); (N.S.)
- Division of Obstetrics, Gynecology and Neonatology, Carol Davila University of Medicine and Pharmacy, 050474 Bucharest, Romania
- Department of Obstetrics and Gynecology, Alessandrescu-Rusescu National Institute for Mother and Child Health, Polizu Clinical Hospital, 020395 Bucharest, Romania;
| | - Dragoş Creţoiu
- Fetal Medicine Excellence Research Center, Alessandrescu-Rusescu National Institute for Mother and Child Health, 020395 Bucharest, Romania; (M.R.R.); (A.P.); (F.D.); (N.S.)
- Department of Cell and Molecular Biology and Histology, Carol Davila University of Medicine and Pharmacy, 050474 Bucharest, Romania;
| | - Valentin Nicolae Varlas
- Department of Obstetrics and Gynecology, Filantropia Clinical Hospital, 01171 Bucharest, Romania
- Faculty of Dental Medicine, Carol Davila University of Medicine and Pharmacy, 030167 Bucharest, Romania
| | - Viorica Elena Rădoi
- Department of Obstetrics and Gynecology, Alessandrescu-Rusescu National Institute for Mother and Child Health, Polizu Clinical Hospital, 020395 Bucharest, Romania;
- Department of Medical Genetics, Carol Davila University of Medicine and Pharmacy, 050474 Bucharest, Romania
| |
Collapse
|
6
|
Xu D, Dong P, Xiong Y, Chen R, Konno Y, Ihira K, Yue J, Watari H. PD-L1 Is a Tumor Suppressor in Aggressive Endometrial Cancer Cells and Its Expression Is Regulated by miR-216a and lncRNA MEG3. Front Cell Dev Biol 2020; 8:598205. [PMID: 33363153 PMCID: PMC7755603 DOI: 10.3389/fcell.2020.598205] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Accepted: 11/12/2020] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Poorly differentiated endometrioid adenocarcinoma and serous adenocarcinoma represent an aggressive subtype of endometrial cancer (EC). Programmed death-ligand-1 (PD-L1) was known to exhibit a tumor cell-intrinsic function in mediating immune-independent tumor progression. However, the functional relevance of tumor cell-intrinsic PD-L1 expression in aggressive EC cells and the mechanisms regulating its expression remain unknown. METHODS PD-L1 expression in 65 EC tissues and 18 normal endometrium samples was analyzed using immunohistochemical staining. The effects of PD-L1 on aggressive EC cell growth, migration and invasion were investigated by cell functional assays. Luciferase reporter assays were used to reveal the microRNA-216a (miR-216a)-dependent mechanism modulating the expression of PD-L1. RESULTS Positive PD-L1 expression was identified in 84% of benign cases but only in 12% of the EC samples, and the staining levels of PD-L1 in EC tissues were significantly lower than those in the normal tissues. Higher PD-L1 expression predicts favorable survival in EC. Ectopic expression of PD-L1 in aggressive EC cells results in decreased cell proliferation and the loss of mesenchymal phenotypes. Mechanistically, PD-L1 exerts the anti-tumor effects by downregulating MCL-1 expression. We found that PD-L1 levels in aggressive EC cells are regulated by miR-216a, which directly targets PD-L1. We further identified a mechanism whereby the long non-coding RNA MEG3 represses the expression of miR-216a, thereby leading to increased PD-L1 expression and significant inhibition of cell migration and invasion. CONCLUSION These results reveal an unappreciated tumor cell-intrinsic role for PD-L1 as a tumor suppressor in aggressive EC cells, and identify MEG3 and miR-216a as upstream regulators of PD-L1.
Collapse
Affiliation(s)
- Daozhi Xu
- Department of Obstetrics and Gynecology, Hokkaido University School of Medicine, Hokkaido University, Sapporo, Japan
| | - Peixin Dong
- Department of Obstetrics and Gynecology, Hokkaido University School of Medicine, Hokkaido University, Sapporo, Japan
| | - Ying Xiong
- Department of Gynecology, State Key Laboratory of Oncology in South China, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Rui Chen
- Department of Gynecology, State Key Laboratory of Oncology in South China, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Yosuke Konno
- Department of Obstetrics and Gynecology, Hokkaido University School of Medicine, Hokkaido University, Sapporo, Japan
| | - Kei Ihira
- Department of Obstetrics and Gynecology, Hokkaido University School of Medicine, Hokkaido University, Sapporo, Japan
| | - Junming Yue
- Department of Pathology and Laboratory Medicine, University of Tennessee Health Science Center, Memphis, TN, United States
- Center for Cancer Research, University of Tennessee Health Science Center, Memphis, TN, United States
| | - Hidemichi Watari
- Department of Obstetrics and Gynecology, Hokkaido University School of Medicine, Hokkaido University, Sapporo, Japan
| |
Collapse
|
7
|
Ghafouri-Fard S, Abak A, Shoorei H, Mohaqiq M, Majidpoor J, Sayad A, Taheri M. Regulatory role of microRNAs on PTEN signaling. Biomed Pharmacother 2020; 133:110986. [PMID: 33166764 DOI: 10.1016/j.biopha.2020.110986] [Citation(s) in RCA: 51] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2020] [Revised: 10/28/2020] [Accepted: 11/03/2020] [Indexed: 12/13/2022] Open
Abstract
Phosphatase and tensin homolog (PTEN) gene encodes a tumor suppressor protein which is altered in several malignancies. This protein is a negative regulator of the PI3K/AKT signaling. Several transcription factors regulate the expression of PTEN in positive or negative directions. Moreover, numerous microRNAs (miRNAs) have functional interactions with PTEN and inhibit its expression. Suppression of PTEN can attenuate the response of cancer cells to chemotherapeutic agents. Based on the critical role of this tumor suppressor gene, the identification of negative regulators of its expression has practical significance particularly in the prevention and management of cancer. Meanwhile, the interaction between miRNAs and PTEN has functional consequences in non-malignant disorders including myocardial infarction, osteoporosis, cerebral ischemic stroke, and recurrent abortion. In the present review, we describe the role of miRNAs in the regulation of expression and activity of PTEN.
Collapse
Affiliation(s)
- Soudeh Ghafouri-Fard
- Department of Medical Genetics, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Atefe Abak
- Department of Medical Genetics, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Hamed Shoorei
- Department of Anatomical Sciences, Faculty of Medicine, Birjand University of Medical Sciences, Birjand, Iran
| | - Mahdi Mohaqiq
- Wake Forest Institute for Regenerative Medicine, School of Medicine, Wake Forest University, Winston-Salem, NC, USA
| | - Jamal Majidpoor
- Department of Anatomy, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Arezou Sayad
- Department of Medical Genetics, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mohammad Taheri
- Urology and Nephrology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran; Urogenital Stem Cell Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| |
Collapse
|
8
|
Lampis A, Hahne JC, Hedayat S, Valeri N. MicroRNAs as mediators of drug resistance mechanisms. Curr Opin Pharmacol 2020; 54:44-50. [PMID: 32898724 DOI: 10.1016/j.coph.2020.08.004] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Revised: 07/24/2020] [Accepted: 08/05/2020] [Indexed: 02/07/2023]
Abstract
MicroRNAs are small RNA transcripts involved in fine-tuning of several cellular mechanisms and pathways crucial for maintaining cells' homeostasis like apoptosis, differentiation, inflammation and cell-cycle regulation. They act by regulation of gene expression at post-transcriptional level through fine-tuning of target proteins expression. Expression of microRNAs is cell-type specific and since their discovery they have been proven to be deregulated in various disorders including cancer. Several lines of evidence are emerging that link microRNAs to drug resistance mechanisms in tumours given their important role in modulating oncogenic and tumour suppressive mechanisms. This review will focus on latest knowledge of the roles and mechanisms of microRNAs as mediators to drug resistance and the implications for future therapies.
Collapse
Affiliation(s)
- Andrea Lampis
- Division of Molecular Pathology and Centre for Evolution and Cancer, The Institute of Cancer Research, London, UK.
| | - Jens C Hahne
- Division of Molecular Pathology and Centre for Evolution and Cancer, The Institute of Cancer Research, London, UK
| | - Somaieh Hedayat
- Division of Molecular Pathology and Centre for Evolution and Cancer, The Institute of Cancer Research, London, UK
| | - Nicola Valeri
- Division of Molecular Pathology and Centre for Evolution and Cancer, The Institute of Cancer Research, London, UK; Department of Medicine, The Royal Marsden Hospital, London and Sutton, UK
| |
Collapse
|
9
|
Nguyen VHL, Yue C, Du KY, Salem M, O’Brien J, Peng C. The Role of microRNAs in Epithelial Ovarian Cancer Metastasis. Int J Mol Sci 2020; 21:ijms21197093. [PMID: 32993038 PMCID: PMC7583982 DOI: 10.3390/ijms21197093] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Revised: 09/22/2020] [Accepted: 09/23/2020] [Indexed: 12/11/2022] Open
Abstract
Epithelial ovarian cancer (EOC) is the deadliest gynecological cancer, and the major cause of death is mainly attributed to metastasis. MicroRNAs (miRNAs) are a group of small non-coding RNAs that exert important regulatory functions in many biological processes through their effects on regulating gene expression. In most cases, miRNAs interact with the 3′ UTRs of target mRNAs to induce their degradation and suppress their translation. Aberrant expression of miRNAs has been detected in EOC tumors and/or the biological fluids of EOC patients. Such dysregulation occurs as the result of alterations in DNA copy numbers, epigenetic regulation, and miRNA biogenesis. Many studies have demonstrated that miRNAs can promote or suppress events related to EOC metastasis, such as cell migration, invasion, epithelial-to-mesenchymal transition, and interaction with the tumor microenvironment. In this review, we provide a brief overview of miRNA biogenesis and highlight some key events and regulations related to EOC metastasis. We summarize current knowledge on how miRNAs are dysregulated, focusing on those that have been reported to regulate metastasis. Furthermore, we discuss the role of miRNAs in promoting and inhibiting EOC metastasis. Finally, we point out some limitations of current findings and suggest future research directions in the field.
Collapse
Affiliation(s)
- Vu Hong Loan Nguyen
- Department of Biology, York University, Toronto, ON M3J 1P3, Canada; (V.H.L.N.); (C.Y.); (K.Y.D.); (M.S.); (J.O.)
| | - Chenyang Yue
- Department of Biology, York University, Toronto, ON M3J 1P3, Canada; (V.H.L.N.); (C.Y.); (K.Y.D.); (M.S.); (J.O.)
| | - Kevin Y. Du
- Department of Biology, York University, Toronto, ON M3J 1P3, Canada; (V.H.L.N.); (C.Y.); (K.Y.D.); (M.S.); (J.O.)
| | - Mohamed Salem
- Department of Biology, York University, Toronto, ON M3J 1P3, Canada; (V.H.L.N.); (C.Y.); (K.Y.D.); (M.S.); (J.O.)
| | - Jacob O’Brien
- Department of Biology, York University, Toronto, ON M3J 1P3, Canada; (V.H.L.N.); (C.Y.); (K.Y.D.); (M.S.); (J.O.)
| | - Chun Peng
- Department of Biology, York University, Toronto, ON M3J 1P3, Canada; (V.H.L.N.); (C.Y.); (K.Y.D.); (M.S.); (J.O.)
- Centre for Research in Biomolecular Interactions, York University, Toronto, ON M3J 1P3, Canada
- Correspondence:
| |
Collapse
|
10
|
Clinicopathological and Prognostic Value of Gastric Carcinoma Highly Expressed Transcript 1 in Cancer: A Meta-Analysis. JOURNAL OF ONCOLOGY 2020; 2020:6341093. [PMID: 32908508 PMCID: PMC7471811 DOI: 10.1155/2020/6341093] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Revised: 07/20/2020] [Accepted: 07/24/2020] [Indexed: 11/25/2022]
Abstract
Background Long noncoding RNA gastric cancer highly expressed transcript 1 (lncRNA GHET1) is often reported to be abnormally expressed in multiple cancers, but the situation is different in different cancers. Therefore, a meta-analysis is necessary to clarify the value of lncRNA GHET1 as a prognostic indicator in cancer. Methods Relevant research studies on lncRNA GHET1 and cancer were retrieved from three electronic literature databases of Web of Science, PubMed, and OVID. Meanwhile, hazard ratios (HRs) and 95% confidence intervals (CIs) were calculated to explore the relationship between lncRNA GHET1 expression and survival of cancer patients. The odds ratios (ORs) and 95% CIs were calculated to assess the association of lncRNA GHET1 expression with pathological parameters of cancer patients. Results The meta-analysis included a total of 11 studies involving 714 cancer patients. The pooled HR suggests that high lncRNA GHET1 expression is associated with poor overall survival. In addition, high expression of lncRNA GHET1 was found to be associated with larger tumor size, poor histological grade, high tumor stage, lymph node metastasis, and distant metastasis. Conclusions High lncRNA GHET1 expression can predict poor survival and pathological parameters. And lncRNA GHET1 could serve as a new indicator in multiple cancers.
Collapse
|
11
|
Cui K, Zhu G. LncRNA CTBP1-AS2 regulates miR-216a/ PTEN to suppress ovarian cancer cell proliferation. J Ovarian Res 2020; 13:84. [PMID: 32711584 PMCID: PMC7382853 DOI: 10.1186/s13048-020-00689-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2020] [Accepted: 07/19/2020] [Indexed: 12/24/2022] Open
Abstract
Background We analyzed TCGA dataset and observed the downregulation of CTBP1-AS2 in ovarian cancer (OC), while the function of CTBP1-AS2 has only been investigated in diabetes and cardiomyocyte hypertrophy, but not in cancer biology. We therefore analyzed the involvement of CTBP1-AS2 in OC. Result We found that CTBP1-AS2 was downregulated in OC and predicted poor survival. CTBP1-AS2 in luciferase activity assay interacted with miR-216a, while overexpression of CTBP1-AS2 and miR-216a had no significant effects on the expression of each other. However, increased expression level of PTEN, a target of miR-216a, was observed after CTBP1-AS2 overexpression. Increased proliferation rate of OC cells was observed after the overexpression of miR-216a. CTBP1-AS2 and PTEN overexpression resulted in the reduced proliferation rate of OC cells and reduced effects of miR-216a overexpression. Conclusion CTBP1-AS2 regulates miR-216a/PTEN to suppress OC cell proliferation.
Collapse
Affiliation(s)
- Kaiying Cui
- Department of Gynaecology, Hainan People's Hospital, Hainan Province, Haikou City, 570311, PR, China
| | - Genhai Zhu
- Department of Gynaecology, Hainan People's Hospital, Hainan Province, Haikou City, 570311, PR, China.
| |
Collapse
|
12
|
Luan M, Shi SS, Shi DB, Liu HT, Ma RR, Xu XQ, Sun YJ, Gao P. TIPRL, a Novel Tumor Suppressor, Suppresses Cell Migration, and Invasion Through Regulating AMPK/mTOR Signaling Pathway in Gastric Cancer. Front Oncol 2020; 10:1062. [PMID: 32719745 PMCID: PMC7350861 DOI: 10.3389/fonc.2020.01062] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2020] [Accepted: 05/28/2020] [Indexed: 12/25/2022] Open
Abstract
Invasion and metastasis of gastric cancer after curative resection remain the most common lethal outcomes. However, our current understanding of the molecular mechanism underlying gastric cancer metastasis is far from complete. Herein, we identified TOR signaling pathway regulator (TIPRL) as a novel metastasis suppressor in gastric cancer through genome-wide gene expression profiling analysis using mRNA microarray. Decreased TIPRL expression was detected in clinical gastric cancer specimens, and low TIPRL expression was correlated with more-advanced TNM stage, distant metastasis, and poor clinical outcome. Moreover, TIPRL was identified as a direct target of miR-216a-5p and miR-383-5p. Functional study revealed that re-expression of TIPRL in gastric cancer cell lines suppressed their migratory and invasive capacities, whereas inverse effects were observed in TIPRL-deficient models. Mechanistically, TIPRL downstream effectors and signaling pathways were investigated using mRNA microarray. Gene expression profiling revealed that TIPRL could not modulate the downstream genes at transcriptional levels, thereby implying that the regulation might occur at the post-transcriptional levels. We further demonstrated that TIPRL induced phosphorylation/activation of AMPK, which in turn attenuated phosphorylation of mTOR, p70S6K, and 4E-BP1, thereby leading to inactivation of mTOR signaling and subsequent suppression of cell migration/invasion in gastric cancer. Taken together, TIPRL acts as a novel metastasis suppressor in gastric cancer, at least in part, through regulating AMPK/mTOR signaling, likely representing a promising target for new therapies in gastric cancer.
Collapse
Affiliation(s)
- Meng Luan
- Key Laboratory for Experimental Teratology of Ministry of Education, Department of Pathology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, China.,Institute of Basic Medicine, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China
| | - Shan-Shan Shi
- Key Laboratory for Experimental Teratology of Ministry of Education, Department of Pathology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, China.,Key Laboratory of Cardiovascular Proteomics of Shandong Province, Department of Geriatrics, Qilu Hospital of Shandong University, Jinan, China
| | - Duan-Bo Shi
- Key Laboratory for Experimental Teratology of Ministry of Education, Department of Pathology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, China.,Department of Pathology, Qilu Hospital, Shandong University, Jinan, China
| | - Hai-Ting Liu
- Key Laboratory for Experimental Teratology of Ministry of Education, Department of Pathology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Ran-Ran Ma
- Key Laboratory for Experimental Teratology of Ministry of Education, Department of Pathology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, China.,Department of Pathology, Qilu Hospital, Shandong University, Jinan, China
| | - Xiao-Qun Xu
- Institute of Basic Medicine, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China
| | - Yu-Jing Sun
- Key Laboratory for Experimental Teratology of Ministry of Education, Department of Pathology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, China.,Department of Pathology, Qilu Hospital, Shandong University, Jinan, China
| | - Peng Gao
- Key Laboratory for Experimental Teratology of Ministry of Education, Department of Pathology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, China.,Department of Pathology, Qilu Hospital, Shandong University, Jinan, China
| |
Collapse
|
13
|
Mohammadinejad R, Biagioni A, Arunkumar G, Shapiro R, Chang KC, Sedeeq M, Taiyab A, Hashemabadi M, Pardakhty A, Mandegary A, Thiery JP, Aref AR, Azimi I. EMT signaling: potential contribution of CRISPR/Cas gene editing. Cell Mol Life Sci 2020; 77:2701-2722. [PMID: 32008085 PMCID: PMC11104910 DOI: 10.1007/s00018-020-03449-3] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2019] [Revised: 12/24/2019] [Accepted: 01/02/2020] [Indexed: 02/06/2023]
Abstract
Epithelial to mesenchymal transition (EMT) is a complex plastic and reversible cellular process that has critical roles in diverse physiological and pathological phenomena. EMT is involved in embryonic development, organogenesis and tissue repair, as well as in fibrosis, cancer metastasis and drug resistance. In recent years, the ability to edit the genome using the clustered regularly interspaced palindromic repeats (CRISPR) and associated protein (Cas) system has greatly contributed to identify or validate critical genes in pathway signaling. This review delineates the complex EMT networks and discusses recent studies that have used CRISPR/Cas technology to further advance our understanding of the EMT process.
Collapse
Affiliation(s)
- Reza Mohammadinejad
- Pharmaceutics Research Center, Institute of Neuropharmacology, Kerman University of Medical Sciences, Kerman, Iran
| | - Alessio Biagioni
- Section of Experimental Pathology and Oncology, Department of Experimental and Clinical Biomedical Sciences "Mario Serio", University of Florence, Florence, Italy
| | - Ganesan Arunkumar
- Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Rebecca Shapiro
- Department of Molecular and Cellular Biology, University of Guelph, Guelph, ON, Canada
| | - Kun-Che Chang
- Department of Ophthalmology, School of Medicine, Byers Eye Institute, Stanford University, Palo Alto, CA, 94303, USA
| | - Mohammed Sedeeq
- Division of Pharmacy, College of Health and Medicine, University of Tasmania, Hobart, TAS, Australia
| | - Aftab Taiyab
- Department of Pathology and Molecular Medicine, McMaster University, Hamilton, ON, L8S 4L8, Canada
| | - Mohammad Hashemabadi
- Department of Biology, Faculty of Sciences, Shahid Bahonar University, Kerman, Iran
- Department of Genetics, Faculty of Biological Sciences, Tarbiat Modares University, Tehran, Iran
| | - Abbas Pardakhty
- Neuroscience Research Center, Institute of Neuropharmacology, Kerman University of Medical Sciences, Kerman, Iran
| | - Ali Mandegary
- Physiology Research Center, Institute of Neuropharmacology and Department of Toxicology & Pharmacology, Kerman University of Medical Sciences, Kerman, Iran
| | - Jean-Paul Thiery
- Guangzhou Regenerative Medicine and Health, Guangdong Laboratory, Guangzhou, China
| | - Amir Reza Aref
- Department of Medical Oncology, Belfer Center for Applied Cancer Science, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA, 02215, USA.
| | - Iman Azimi
- Division of Pharmacy, College of Health and Medicine, University of Tasmania, Hobart, TAS, Australia.
| |
Collapse
|
14
|
Li Q, Shi J, Xu X. MicroRNA-1271-5p inhibits the tumorigenesis of ovarian cancer through targeting E2F5 and negatively regulates the mTOR signaling pathway. Panminerva Med 2020; 63:336-342. [PMID: 32414231 DOI: 10.23736/s0031-0808.20.03939-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
BACKGROUND MicroRNA-1271-5p (miR-1271-5p) has been reported to participate in the progression of many human cancers. However, the role of miR-1271-5p still remains unclear in ovarian cancer (OC). Therefore, we explored the effect of miR-1271-5p on the development of OC in present study. METHODS We measured the miR-1271-5p expression via the qRT-PCR assay. Then the function of miR-1271-5p was analyzed through MTT and Transwell assays. The relationship among miR-1271-5p and E2F5 was verified by dual luciferase assay. The protein expression levels were examined through western blot. RESULTS MiR-1271-5p was downregulated in OC tissues which predicted poor prognosis of OC patients. Moreover, E2F5 was a direct target of miR-1271-5p in OC. And miR-1271-5p suppressed cell proliferation, migration and invasion in OC through targeting E2F5. Furthermore, E2F5 was upregulated in OC tissues which predicted poor prognosis of OC patients. Besides that, miR-1271-5p suppressed EMT and mTOR pathway in OC. CONCLUSIONS MiR-1271-5p inhibited the tumorigenesis of OC through targeting E2F5 and negatively regulated the mTOR signaling pathway.
Collapse
Affiliation(s)
- Qin Li
- Department of Obstetrics and Gynecology, The Third Affiliated Hospital of Soochow University, The First People's Hospital of Changzhou, Changzhou, China
| | - Junyu Shi
- Department of Obstetrics and Gynecology, The Third Affiliated Hospital of Soochow University, The First People's Hospital of Changzhou, Changzhou, China
| | - Xiaoli Xu
- Department of Obstetrics and Gynecology, The Third Affiliated Hospital of Soochow University, The First People's Hospital of Changzhou, Changzhou, China -
| |
Collapse
|
15
|
Abstract
Introduction: Ovarian carcinoma (OC) is the leading cause of death in women with gynecologic cancers. Most patients are diagnosed at an advanced stage with a low five-year survival rate of 20-30%. Discovering novel biomarkers for early detection and outcome prediction of OC is an urgent medical need. miRNAs, a group of small non-coding RNAs, play critical roles in multiple biologic processes and cancer pathogenesis.Areas covered: We provide an in-depth look at the functions of miRNAs in OC, particularly focusing on their roles in chemoresistance and metastasis in OC. We also discuss the biological and clinical significance of miRNAs in exosomes and expand on long non-coding RNA which acts as ceRNA of miRNAs.Expert opinion: miRNAs participate in many biological processes including proliferation, apoptosis, chemoresistance, metastasis, epithelial-mesenchymal transition, and cancer stem cell. They will substantially contribute to our understanding of OC pathogenesis. Given their resistance to the degradation of ribonucleases and availability in plasma exosomes, miRNAs may serve as emerging biomarkers for cancer detection, therapeutic assessment, and prognostic prediction. Being a messenger, exosomal miRNAs are crucial for the crosstalk between cancer cells and stromal cells in tumor microenvironment.
Collapse
Affiliation(s)
- Huilin Zhang
- Department of Surgical Pathology, Women's Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang Province, China
| | - Bingjian Lu
- Department of Surgical Pathology, Women's Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang Province, China
| |
Collapse
|
16
|
Wang P, Liu Q, Zhao H, Bishop JO, Zhou G, Olson LK, Moore A. miR-216a-targeting theranostic nanoparticles promote proliferation of insulin-secreting cells in type 1 diabetes animal model. Sci Rep 2020; 10:5302. [PMID: 32210316 PMCID: PMC7093482 DOI: 10.1038/s41598-020-62269-4] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2019] [Accepted: 03/06/2020] [Indexed: 11/30/2022] Open
Abstract
Aberrant expression of miRNAs in pancreatic islets is closely related to the development of type 1 diabetes (T1D). The aim of this study was to identify key miRNAs dysregulated in pancreatic islets during T1D progression and to develop a theranostic approach to modify their expression using an MRI-based nanodrug consisting of iron oxide nanoparticles conjugated to miRNA-targeting oligonucleotides in a mouse model of T1D. Isolated pancreatic islets were derived from NOD mice of three distinct age groups (3, 8 and 18-week-old). Total RNA collected from cultured islets was purified and global miRNA profiling was performed with 3D-Gene global miRNA microarray mouse chips encompassing all mouse miRNAs available on the Sanger miRBase V16. Of the miRNAs that were found to be differentially expressed across three age groups, we identified one candidate (miR-216a) implicated in beta cell proliferation for subsequent validation by RT-PCR. Alterations in miR-216a expression within pancreatic beta cells were also examined using in situ hybridization on the frozen pancreatic sections. For in vitro studies, miR-216a mimics/inhibitors were conjugated to iron oxide nanoparticles and incubated with beta cell line, βTC-6. Cell proliferation marker Ki67 was evaluated. Expression of the phosphatase and tensin homolog (PTEN), which is one of the direct targets of miR-216a, was analyzed using western blot. For in vivo study, the miR-216a mimics/inhibitors conjugated to the nanoparticles were injected into 12-week-old female diabetic Balb/c mice via pancreatic duct. The delivery of the nanodrug was monitored by in vivo MRI. Blood glucose of the treated mice was monitored post injection. Ex vivo histological analysis of the pancreatic sections included staining for insulin, PTEN and Ki67. miRNA microarray demonstrated that the expression of miR-216a in the islets from NOD mice significantly changed during T1D progression. In vitro studies showed that treatment with a miR-216a inhibitor nanodrug suppressed proliferation of beta cells and increased the expression of PTEN, a miR-216a target. In contrast, introduction of a mimic nanodrug decreased PTEN expression and increased beta cell proliferation. Animals treated in vivo with a mimic nanodrug had higher insulin-producing functionality compared to controls. These observations were in line with downregulation of PTEN and increase in beta cell proliferation in that group. Our studies demonstrated that miR-216a could serve as a potential therapeutic target for the treatment of diabetes. miR-216a-targeting theranostic nanodrugs served as exploratory tools to define functionality of this miRNA in conjunction with in vivo MR imaging.
Collapse
Affiliation(s)
- Ping Wang
- Precision Health Program, Department of Radiology, College of Human Medicine, Michigan State University, East Lansing, Michigan, 48823, USA.
| | - Qiong Liu
- Department of Anatomy, Histology and Embryology, School of Basic Medical Science, Fudan University, Shanghai, 200032, China
| | - Hongwei Zhao
- Shanxi Medical University, Taiyuan, Shanxi, 030001, China.,Department of Gynecologic Oncology, Shanxi Provincial Cancer Hospital, Taiyuan, Shanxi, 030013, China
| | - Jack Owen Bishop
- Precision Health Program, Department of Radiology, College of Human Medicine, Michigan State University, East Lansing, Michigan, 48823, USA.,Department of Neuroscience, College of Natural Science, Michigan State University, East Lansing, Michigan, 48824, USA
| | - Guoli Zhou
- Biomedical Research Informatics Core, Clinical & Translational Sciences Institute, Michigan State University, East Lansing, Michigan, 48824, USA
| | - L Karl Olson
- Department of Physiology, College of Natural Science, Michigan State University, East Lansing, Michigan, 48824, USA
| | - Anna Moore
- Precision Health Program, Department of Radiology, College of Human Medicine, Michigan State University, East Lansing, Michigan, 48823, USA.
| |
Collapse
|
17
|
Ghafouri-Fard S, Shoorei H, Taheri M. miRNA profile in ovarian cancer. Exp Mol Pathol 2020; 113:104381. [PMID: 31954715 DOI: 10.1016/j.yexmp.2020.104381] [Citation(s) in RCA: 80] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2019] [Revised: 01/15/2020] [Accepted: 01/16/2020] [Indexed: 12/29/2022]
Abstract
Ovarian cancer is a gynecological cancer with high mortality and a heterogeneous nature which complicates its early detection and primary prevention. Numerous studies have evaluated expression profile microRNAs (miRNAs) in tissue and serum samples of ovarian cancer patients to find appropriate biomarkers for this malignancy. Functional experiments also verified the oncogenic or suppressor effects of a number of miRNAs. miRNAs exert their role through degradation or inhibition of translation of the target mRNA. Through this regulatory function, they modulate numerous cellular processes which are ultimately associated with carcinogenesis. A number of miRNAs including miR-135a-3p, miR-200c, miR-216a and miR-340 regulate epithelial-mesenchymal transition program thus modulate invasiveness of ovarian cancer cell. Others have been shown to regulate some fundamental pathways in carcinogenesis such as mTOR and PI3K/AKT pathways. Such vast area of function of miRNAs in ovarian cancer has suggested them as putative therapeutic options for future years. In this review, we summarize the recent findings regarding the role of miRNAs in ovarian cancer pathogenesis, their application as biomarkers and the future perspectives of this research area.
Collapse
Affiliation(s)
- Soudeh Ghafouri-Fard
- Department of Medical Genetics, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Hamed Shoorei
- Department of Anatomical Sciences, Faculty of Medicine, Birjand University of Medical Sciences, Birjand, Iran
| | - Mohammad Taheri
- Urogenital Stem Cell Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| |
Collapse
|
18
|
Zhang H, Liu A, Feng X, Tian L, Bo W, Wang H, Hu Y. MiR-132 promotes the proliferation, invasion and migration of human pancreatic carcinoma by inhibition of the tumor suppressor gene PTEN. PROGRESS IN BIOPHYSICS AND MOLECULAR BIOLOGY 2019; 148:65-72. [PMID: 28941804 DOI: 10.1016/j.pbiomolbio.2017.09.019] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2017] [Revised: 09/01/2017] [Accepted: 09/18/2017] [Indexed: 01/11/2023]
Abstract
MicroRNA (miRNAs) emerges as key oncogene or tumor suppressor in a variety of cancers including pancreatic carcinoma. In this study, we detected the role of miR-132 in development and progression of pancreatic cancer and the underlying mechanism. First, the expression of miR-132 in pancreatic carcinoma and adjacent non-cancerous tissues were detected by qRT-PCR. Then, the role of miR-132 in biological function of pancreatic carcinoma cells was investigated. Our results identified that miR-132 was generally upregulated in pancreatic carcinoma, and phosphatase and tensin homolog (PTEN) was generally downregulated. miR-132 and PTEN were associated with advanced tumor size, lymph node metastasis and Tumor-Nodes-Metastases (TNM) stage of pancreatic carcinoma. Downregulation of miR-132 inhibited proliferation, migration and invasion of pancreatic carcinoma cells. In contrast, overexpression of miR-132 promoted proliferation, migration and invasion of pancreatic carcinoma cells. The luciferase reporter system demonstrated PTEN is a direct target of miR-132. Overexpression of PTEN abrogated the induction of miR-132 on proliferation, migration and invasion of pancreatic carcinoma cells. Taken together, miR-132 promotes the proliferation, invasion and migration of human pancreatic cancer by inhibition of PTEN, and could be a tumor oncogene in development and progression of pancreatic carcinoma, and might be a candidate prognostic biomarker and a promising target for new treatment of human pancreatic cancer.
Collapse
Affiliation(s)
- Hui Zhang
- Department of Hepatopancreatobiliary Surgery, Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, School of Medicine, University of Electronic Science and Technology of China, Chengdu 610041, China
| | - Aixiang Liu
- Department of Hepatopancreatobiliary Surgery, Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, School of Medicine, University of Electronic Science and Technology of China, Chengdu 610041, China
| | - Xielin Feng
- Department of Hepatopancreatobiliary Surgery, Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, School of Medicine, University of Electronic Science and Technology of China, Chengdu 610041, China
| | - Lang Tian
- Department of Hepatopancreatobiliary Surgery, Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, School of Medicine, University of Electronic Science and Technology of China, Chengdu 610041, China
| | - Wentao Bo
- Department of Hepatopancreatobiliary Surgery, Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, School of Medicine, University of Electronic Science and Technology of China, Chengdu 610041, China
| | - Haiqing Wang
- Department of Hepatopancreatobiliary Surgery, Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, School of Medicine, University of Electronic Science and Technology of China, Chengdu 610041, China
| | - Yong Hu
- Department of Hepatopancreatobiliary Surgery, Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, School of Medicine, University of Electronic Science and Technology of China, Chengdu 610041, China.
| |
Collapse
|
19
|
Li GC, Qin XL, Song HH, Li YN, Qiu YY, Cui SC, Wang YS, Wang H, Gong JL. Upregulated microRNA-15b alleviates ovarian cancer through inhitbition of the PI3K/Akt pathway by targeting LPAR3. J Cell Physiol 2019; 234:22331-22342. [PMID: 31140597 DOI: 10.1002/jcp.28799] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2017] [Revised: 04/15/2019] [Accepted: 04/17/2019] [Indexed: 12/21/2022]
Abstract
Ovarian cancer characterizes as the fourth leading consequence of death associated with cancer for women. Accumulating evidence underscores the vital roles of microRNAs (miRNAs) in preventing ovarian cancer development. Besides, induction of the phosphatidylinositol-3 kinase/serine/threonine kinase (PI3K/Akt) pathway associated with the ovarian cancer cell migration and invasion. The study aims to examine the effects of miR-15b on the proliferation, apoptosis, and senescence of human ovarian cancer cells by binding to lysophosphatidic acid receptor 3 (LPAR3) with the involvement of the PI3K/Akt pathway. The positive expression of LPAR3 protein was detected by immunohistochemistry. Then the interaction between miR-15b and LPAR3 was examined. The possible role of miR-15b in ovarian cancer was explored using gain- and loss-of-function experiments. Subsequently, the functions of miR-15b on PI3K/Akt pathway, proliferation, migration, invasion, senescence and apoptosis of ovarian cancer cells were assessed. Furthermore, in vivo tumorigenicity assay in nude mice was performed. LPAR3 was overexpressed, whereas miR-15b was poorly expressed in ovarian cancer tissues. LPAR3 is a direct target of miR-15b. Restored miR-15b promoted Bax expression, apoptosis, and senescence, inhibited expression of LPAR3 and Bcl-2, the extent of PI3K and Akt phosphorylation, as well as ovarian cancer cell proliferation, migration, and invasion. Further, tumor growth was observed to be prevented by miR-15b overexpression. Collectively, our study demonstrates that miR-15b represses the proliferation and drives the senescence and apoptosis of ovarian cancer cells through the suppression of LPAR3 and the PI3K/Akt pathway, highlighting an antitumorigenic role of miR-15b.
Collapse
Affiliation(s)
- Guang-Cai Li
- Department of Obstetrics and Gynecology, Linyi People's Hospital, Linyi, People's Republic of China
| | - Xu-Ling Qin
- Department of Emergency, Economic and Technological Development Zone People's Hospital of Linyi, Linyi, People's Republic of China
| | - Huai-Hua Song
- Department of Obstetrics and Gynecology, The Third People's Hospital of Linyi, Linyi, People's Republic of China
| | - Ying-Ni Li
- Department of Obstetrics and Gynecology, Economic and Technological Development Zone People's Hospital of Linyi, Linyi, People's Republic of China
| | - Yu-Yan Qiu
- Department of Obstetrics and Gynecology, Economic and Technological Development Zone People's Hospital of Linyi, Linyi, People's Republic of China
| | - Shi-Chang Cui
- Department of General Surgery, Linyi Central Hospital, Linyi, People's Republic of China
| | - Yong-Sheng Wang
- Department of Obstetrics and Gynecology, Linyi People's Hospital, Linyi, People's Republic of China
| | - Hui Wang
- Department of Obstetrics and Gynecology, Linyi People's Hospital, Linyi, People's Republic of China
| | - Jun-Ling Gong
- Department of Obstetrics and Gynecology, Linyi People's Hospital, Linyi, People's Republic of China
| |
Collapse
|
20
|
Liu Z, Xu Z, Tian Y, Yan H, Lou Y. ZNF277 regulates ovarian cancer cell proliferation and invasion through inhibition of PTEN. Onco Targets Ther 2019; 12:3031-3042. [PMID: 31114246 PMCID: PMC6476229 DOI: 10.2147/ott.s192553] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Background ZNF277 is a transcription factor that is overexpressed in several cancers. However, its clinical role in ovarian cancer (OC) has not been reported yet. The present study aims to investigate the expression of ZNF277 in patients with OC, and to reveal the effects of ZNF277 on the proliferation, migration, and invasion of OC cells. Methods Using The Cancer Genome Atlas database, we found that higher expression of ZNF277 was correlated with poorer survival times of OC patients. This study used functional experiments, such as Cell Counting Kit-8 assay, colony formation assay, wound healing assay, and transwell invasion assay. Mechanistically, using quantitative chromatin immunoprecipitation assay, luciferase reporter assay, quantitative reverse-transcription PCR, and Western blot we identified the potential mechanism. Results We confirmed for the first time that the expression of ZNF277 is significantly increased in OC tissues and cell lines and that it is closely associated with the adverse clinical features of OC patients. We demonstrated that overexpression of ZNF277 potentiated the proliferation, migration, and invasion of SKOV3 and OVCAR3 loss-of-function experiments showed that the silencing of ZNF277 reduced the proliferation, migration, and invasion of OC cells. Mechanistically, using quantitative chromatin immunoprecipitation assay, luciferase reporter assay, quantitative reverse-transcription PCR, and Western blot we identified that PTEN was a direct downstream target for ZNF277. PTEN expression antagonized the tumor-promoting function of ZNF277. Conclusion Taken together, the results of the current study demonstrated that ZNF277 exerted a promoting role in the progression of OC and might act as a promising biomarker and therapeutic target for OC patients.
Collapse
Affiliation(s)
- Zhengling Liu
- Department of Gynaecology, Linyi Central Hospital, Linyi, Shandong, 276400, People's Republic of China,
| | - Zonglan Xu
- Department of Gynaecology, Linyi Central Hospital, Linyi, Shandong, 276400, People's Republic of China,
| | - Yonghui Tian
- Department of Gynaecology, Linyi Central Hospital, Linyi, Shandong, 276400, People's Republic of China,
| | - Hua Yan
- Department of Gynaecology, Linyi Central Hospital, Linyi, Shandong, 276400, People's Republic of China,
| | - Yanyan Lou
- Department of Gynaecology, Linyi Central Hospital, Linyi, Shandong, 276400, People's Republic of China,
| |
Collapse
|
21
|
Fan Y, He Y, Zhou X, Liu Y, Wang F. Meta-analysis of the prognostic value of lncRNA DANCR for cancer patients in China. Cancer Manag Res 2019; 11:2027-2037. [PMID: 30881127 PMCID: PMC6407511 DOI: 10.2147/cmar.s196071] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Background Abnormal expression of long non-coding RNA anti-differentiation noncoding RNA (lncRNA DANCR) can frequently be detected in cancer. Because of this, it is of vital necessity to perform a meta-analysis to clarify the value of lncRNA DANCR as a prognostic marker in malignant tumors. Methods Related studies were retrieved from electronic databases including Web of Science, PubMed, and OVID, from inception to November 21, 2018. The HRs and corresponding 95% CIs were also calculated to explore the relationship of lncRNA DANCR expression with patient survival. Moreover, ORs were computed to assess the association of lncRNA DANCR expression with the pathological parameters. Results A total of 14 studies involving 1,117 patients were included in this meta-analysis. The pooled HR suggested that high lncRNA DANCR expression was correlated with poor overall survival (OS; HR =1.85, 95% CI: 1.56–2.18) and disease-free survival (DFS; HR =2.49, 95% CI: 1.75–3.56) in cancer patients. Besides, High lncRNA DANCR expression was related to poor histological grade (PHG; OR =2.01, 95% CI: 1.08–3.75), high tumor stage (HTS; OR =3.52, 95% CI: 1.67–7.43), lymph node metastasis (LNM; OR =3.47, 95% CI: 1.42–8.49), and distant metastasis (DM; OR =4.76, 95% CI: 2.39–9.51). However, no evidence of obvious asymmetry was found for DFS (Pr>|z|=0.308), PHG (Pr>|z|=0.707), LNM (Pr>|z|=0.174), and DM (Pr>|z|=0.734) using Begg’s funnel plot. Conclusion Our findings suggest that high lncRNA DANCR expression can predict poor OS, DFS, PHG, HTS, LNM, and DM in cancer patients, implying that high lncRNA DANCR expression may potentially serve as a new indicator for poor prognosis and metastasis in cancer.
Collapse
Affiliation(s)
- Yanghua Fan
- Department of Central Laboratory, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China
| | - Yu He
- Department of Orthopedics, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China,
| | - Xi Zhou
- Department of Orthopedics, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China,
| | - Yong Liu
- Department of Orthopedics, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China,
| | - Fu Wang
- Department of Orthopedic Surgery, Shandong Provincial Hospital Affiliated to Shandong University, Ji'nan, Shandong, China,
| |
Collapse
|
22
|
Wang X, Li Z, Bai J, Song W, Zhang F. miR‑17‑5p regulates the proliferation and apoptosis of human trabecular meshwork cells by targeting phosphatase and tensin homolog. Mol Med Rep 2019; 19:3132-3138. [PMID: 30816540 PMCID: PMC6423565 DOI: 10.3892/mmr.2019.9973] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2017] [Accepted: 01/17/2019] [Indexed: 12/23/2022] Open
Abstract
Glaucoma is one of the leading causes of blindness. Previous studies have indicated that the oxidative stress-induced apoptosis of trabecular meshwork cells (TMCs) may serve a key role in the pathogenesis of glaucoma, and that micro RNA(miR)-17-5p may be involved in this process. However, the specific mechanisms require further investigation. The aim of the present study was to investigate the effects of miR-17-5p on the proliferation and apoptosis of human TMCs (HTMCs) in response to oxidative stress. It was observed that exposure to H2O2 induced a significant decrease in the proliferation and a marked increase in the apoptosis of HTMCs. H2O2 exposure also suppressed the expression of miR-17-5p and promoted the expression of phosphatase and tensin homolog (PTEN). Furthermore, transient overexpression of miR-17-5p induced a significant increase in the proliferation and a significant decrease in the apoptosis of HTMCs by affecting the expression of PTEN, and the apoptosis-related proteins B-cell lymphoma-associated X protein (Bax), B-cell lymphoma-extra large (Bcl-xL) and B-cell lymphoma-2 (Bcl-2). However, knockdown of miR-17-5p demonstrated the opposite results. The results of a dual luciferase reporter assay demonstrated that PTEN may be a direct target of miR-17-5p. In conclusion, miR-17-5p was downregulated in HTMCs under oxidative conditions, and miR-17-5p may regulate the apoptosis of HTMCs by targeting PTEN. These results provide a novel theoretical basis and potential therapeutic target for the treatment of glaucoma.
Collapse
Affiliation(s)
- Xiaoyuan Wang
- Department of Ophthalmology, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150086, P.R. China
| | - Zhijian Li
- Department of Ophthalmology, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150086, P.R. China
| | - Jie Bai
- Department of Ophthalmology, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150086, P.R. China
| | - Wuqi Song
- Department of Microbiology, Harbin Medical University, Heilongjiang Provincial Key Laboratory of Infection and Immunity, Key Laboratory of Pathogenic Biology, Harbin, Heilongjiang 150086, P.R. China
| | - Fengmin Zhang
- Department of Microbiology, Harbin Medical University, Heilongjiang Provincial Key Laboratory of Infection and Immunity, Key Laboratory of Pathogenic Biology, Harbin, Heilongjiang 150086, P.R. China
| |
Collapse
|
23
|
Zhou X, Dai E, Song Q, Ma X, Meng Q, Jiang Y, Jiang W. In silico drug repositioning based on drug-miRNA associations. Brief Bioinform 2019; 21:498-510. [DOI: 10.1093/bib/bbz012] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2018] [Revised: 12/14/2018] [Accepted: 01/11/2019] [Indexed: 02/06/2023] Open
Abstract
Abstract
Drug repositioning has become a prevailing tactic as this strategy is efficient, economical and low risk for drug discovery. Meanwhile, recent studies have confirmed that small-molecule drugs can modulate the expression of disease-related miRNAs, which indicates that miRNAs are promising therapeutic targets for complex diseases. In this study, we put forward and verified the hypothesis that drugs with similar miRNA profiles may share similar therapeutic properties. Furthermore, a comprehensive drug–drug interaction network was constructed based on curated drug-miRNA associations. Through random network comparison, topological structure analysis and network module extraction, we found that the closely linked drugs in the network tend to treat the same diseases. Additionally, the curated drug–disease relationships (from the CTD) and random walk with restarts algorithm were utilized on the drug–drug interaction network to identify the potential drugs for a given disease. Both internal validation (leave-one-out cross-validation) and external validation (independent drug–disease data set from the ChEMBL) demonstrated the effectiveness of the proposed approach. Finally, by integrating drug-miRNA and miRNA-disease information, we also explain the modes of action of drugs in the view of miRNA regulation. In summary, our work could determine novel and credible drug indications and offer novel insights and valuable perspectives for drug repositioning.
Collapse
Affiliation(s)
- Xu Zhou
- College of Bioinformatics Science and Technology, Harbin Medical University, Harbin, P. R. China
| | - Enyu Dai
- College of Bioinformatics Science and Technology, Harbin Medical University, Harbin, P. R. China
| | - Qian Song
- College of Bioinformatics Science and Technology, Harbin Medical University, Harbin, P. R. China
| | - Xueyan Ma
- College of Bioinformatics Science and Technology, Harbin Medical University, Harbin, P. R. China
| | - Qianqian Meng
- College of Bioinformatics Science and Technology, Harbin Medical University, Harbin, P. R. China
| | - Yongshuai Jiang
- College of Bioinformatics Science and Technology, Harbin Medical University, Harbin, P. R. China
| | - Wei Jiang
- Department of Biomedical Engineering, College of Automation Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, P. R. China
| |
Collapse
|
24
|
Álvarez-Garcia V, Tawil Y, Wise HM, Leslie NR. Mechanisms of PTEN loss in cancer: It's all about diversity. Semin Cancer Biol 2019; 59:66-79. [PMID: 30738865 DOI: 10.1016/j.semcancer.2019.02.001] [Citation(s) in RCA: 201] [Impact Index Per Article: 40.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2018] [Revised: 01/22/2019] [Accepted: 02/05/2019] [Indexed: 01/04/2023]
Abstract
PTEN is a phosphatase which metabolises PIP3, the lipid product of PI 3-Kinase, directly opposing the activation of the oncogenic PI3K/AKT/mTOR signalling network. Accordingly, loss of function of the PTEN tumour suppressor is one of the most common events observed in many types of cancer. Although the mechanisms by which PTEN function is disrupted are diverse, the most frequently observed events are deletion of a single gene copy of PTEN and gene silencing, usually observed in tumours with little or no PTEN protein detectable by immunohistochemistry. Accordingly, with the exceptions of glioblastoma and endometrial cancer, mutations of the PTEN coding sequence are uncommon (<10%) in most types of cancer. Here we review the data relating to PTEN loss in seven common tumour types and discuss mechanisms of PTEN regulation, some of which appear to contribute to reduced PTEN protein levels in cancers.
Collapse
Affiliation(s)
- Virginia Álvarez-Garcia
- Institute of Biological Chemistry, Biophysics and Bioengineering, Heriot-Watt University, Edinburgh, EH14 4AS, UK
| | - Yasmine Tawil
- Institute of Biological Chemistry, Biophysics and Bioengineering, Heriot-Watt University, Edinburgh, EH14 4AS, UK
| | - Helen M Wise
- Institute of Biological Chemistry, Biophysics and Bioengineering, Heriot-Watt University, Edinburgh, EH14 4AS, UK
| | - Nicholas R Leslie
- Institute of Biological Chemistry, Biophysics and Bioengineering, Heriot-Watt University, Edinburgh, EH14 4AS, UK.
| |
Collapse
|
25
|
Li XS, Shen FZ, Huang LY, Hui L, Liu RH, Ma YJ, Jin BZ. lncRNA small nucleolar RNA host gene 20 predicts poor prognosis in glioma and promotes cell proliferation by silencing P21. Onco Targets Ther 2019; 12:805-814. [PMID: 30774368 PMCID: PMC6352861 DOI: 10.2147/ott.s192641] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Background In multiple cancers, long non-coding RNA small nucleolar RNA host gene 20 (lncRNA SNHG20) is generally dysregulated. In the present study, both the biological role and clinicopathological value of lncRNA SNHG20 in glioma are explored. Methods Real-time PCR was employed to determine lncRNA SNHG20 expression in glioma patients. The prognostic role of expression of lncRNA SNHG20 was evaluated in a retrospective cohort study. In addition, the association between lncRNA SNHG20 expression and the clinicopathological features of glioma patients, such as tumor recurrence, survival status, follow-up time, WHO grade, resection extent, tumor location, Karnofsky performance scale score, cystic change, tumor size, gender and age, was discussed. By constructing and transfecting siRNAs that targeted lncRNA SNHG20 into the glioma U87 cells, the effects of lncRNA SNHG20 on the proliferation and cell cycle of U87 cells were assessed through cell counting kit-8, colony formation and cell cycle assays, respectively. In addition, Western blot and real-time PCR measured the expression levels of P21 and CCNA1 in U87 cells after being transfected with SNHG20 siRNA. Results Our results suggested the high expression of lncRNA SNHG20 in human glioma tissues compared with normal brain tissues, which was related to recurrence-free survival and poor overall survival in glioma patients. According to the existing retrospective cohort study, high lncRNA SNHG20 expression was associated with tumor size, extent of resection, WHO grade, follow-up time, survival status and recurrence. Besides, knocking down the expression of lncRNA SNHG20 could inhibit the proliferation and colony formation abilities of glioma U87 cells through cell cycle arrest. Consequently, the expression of CCNA1 was inhibited, and the expression of P21 was up-regulated in U87 cells. Conclusion A high lncRNA SNHG20 expression level predicts the poor prognosis for glioma patients. Moreover, lncRNA SNHG20 can promote glioma proliferation through silencing P21 and thus lncRNA SNHG20 is an independent potential prognostic biomarker for glioma patients.
Collapse
Affiliation(s)
- Xiang-Sheng Li
- Department of Neurosurgery, The First Affiliated Hospital of Xinxiang Medical University, Xinxiang 453000, Henan Province, People's Republic of China,
| | - Fa-Zheng Shen
- Department of Neurosurgery, The First Affiliated Hospital of Xinxiang Medical University, Xinxiang 453000, Henan Province, People's Republic of China,
| | - Li-Yong Huang
- Department of Neurosurgery, The First Affiliated Hospital of Xinxiang Medical University, Xinxiang 453000, Henan Province, People's Republic of China,
| | - Lei Hui
- Department of Neurosurgery, The First Affiliated Hospital of Xinxiang Medical University, Xinxiang 453000, Henan Province, People's Republic of China,
| | - Rui-Hua Liu
- Department of Neurosurgery, The First Affiliated Hospital of Xinxiang Medical University, Xinxiang 453000, Henan Province, People's Republic of China,
| | - Yan-Juan Ma
- Department of Emergency, The First Affiliated Hospital of Xinxiang Medical University, Xinxiang 453000, Henan Province, People's Republic of China
| | - Bao-Zhe Jin
- Department of Neurosurgery, The First Affiliated Hospital of Xinxiang Medical University, Xinxiang 453000, Henan Province, People's Republic of China,
| |
Collapse
|
26
|
Wang J, Xu W, He Y, Xia Q, Liu S. LncRNA MEG3 impacts proliferation, invasion, and migration of ovarian cancer cells through regulating PTEN. Inflamm Res 2018; 67:927-936. [PMID: 30310931 DOI: 10.1007/s00011-018-1186-z] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2018] [Revised: 09/05/2018] [Accepted: 09/06/2018] [Indexed: 01/01/2023] Open
Abstract
OBJECTIVE AND DESIGN We investigated the expressions of lncRNA MEG3 and PTEN in ovarian cancer tissues and their effects on cell proliferation, cycle and apoptosis of ovarian cancer. METHODS Expression levels of MEG3 in ovarian cancer cell lines and normal ovarian cell lines were detected by qRT-PCR. Cell viability was detected by MTT assay. Cell apoptosis and cell cycle distribution were measured by flow cytometry. Cell invasion capability was tested by transwell assay. Cell migration capacity was tested by wound healing. The xenograft model was constructed to explore the effect of lncRNA MEG3 on ovarian cancer in vivo. RESULT Compared with normal ovarian cells, expression levels of MEG3 and PTEN were relatively lower in ovarian cancer cells. There was a positive correlation between the expression of PTEN and the expression of MEG3. Enhanced expression level of PTEN suppressed SKOV3 cell proliferation, increased cell apoptosis rate, and decreased cell invasion and migration. CONCLUSION LncRNA MEG3 and PTEN were down-regulated in ovarian cancer cells. LncRNA MEG3 regulated the downstream gene PTEN in ovarian cancer cells to prohibit cell proliferation, promote apoptosis and block cell cycle progression.
Collapse
Affiliation(s)
- Juelan Wang
- Department of Oncology, Sichuan Academy of Medical Sciences and Sichuan Provincial People's Hospital, Chengdu, 610072, Sichuan, China
| | - Wenqian Xu
- Department of Cardiology, Daping Hospital, The Third Military Medical University, Chongqing, 400042, China
| | - Yangke He
- Department of Oncology, Sichuan Academy of Medical Sciences and Sichuan Provincial People's Hospital, Chengdu, 610072, Sichuan, China
| | - Qi Xia
- Department of Oncology, Sichuan Academy of Medical Sciences and Sichuan Provincial People's Hospital, Chengdu, 610072, Sichuan, China
| | - Siwei Liu
- Department of Obstetrics and Gynecology, Sichuan Academy of Medical Sciences and Sichuan Provincial People's Hospital, No. 32 West Section 2, First Ring Road, Chengdu, 610072, Sichuan, China.
| |
Collapse
|
27
|
Kashyap D, Tuli HS, Garg VK, Goel N, Bishayee A. Oncogenic and Tumor-Suppressive Roles of MicroRNAs with Special Reference to Apoptosis: Molecular Mechanisms and Therapeutic Potential. Mol Diagn Ther 2018; 22:179-201. [PMID: 29388067 DOI: 10.1007/s40291-018-0316-1] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
MicroRNAs (miRNAs) are the non-coding class of minute RNA molecules that negatively control post-transcriptional regulation of various functional genes. These miRNAs are transcribed from the loci present in the introns of functional or protein-coding genes, exons of non-coding genes, or even in the 3'-untranslated region (3'-UTR). They have potential to modulate the stability or translational efficiency of a variety of target RNA [messenger RNA (mRNA)]. The regulatory function of miRNAs has been elucidated in several pathological conditions, including neurological (Alzheimer's disease and Parkinson's disease) and cardiovascular conditions, along with cancer. Importantly, miRNA identification in cancer progression and invasion has evolved as an incipient era in cancer treatment. Several studies have shown the influence of miRNAs on various cancer processes, including apoptosis, invasion, metastasis and angiogenesis. In particular, apoptosis induction in tumor cells through miRNA has been extensively studied. The biphasic mode (up- and down-regulation) of miRNA expression in apoptosis and other cancer processes has already been determined. The findings of these studies could be utilized to develop potential therapeutic strategies for the management of various cancers. The present review critically describes the oncogenic and tumor suppressor role of miRNAs in apoptosis and other cancer processes, therapy resistance, and use of their presence in the body fluids as biomarkers.
Collapse
Affiliation(s)
- Dharambir Kashyap
- Department of Histopathology, Postgraduate Institute of Medical Education and Research, Chandigarh, 160012, Punjab, India
| | - Hardeep Singh Tuli
- Department of Biotechnology, Maharishi Markandeshwar University, Mullana-Ambala, 133207, Haryana, India.
| | - Vivek Kumar Garg
- Department of Biochemistry, Government Medical College and Hospital, Chandigarh, 160030, Punjab, India
| | - Neelam Goel
- Department of Information Technology, University Institute of Engineering and Technology, Panjab University, Chandigarh, 160014, Punjab, India
| | - Anupam Bishayee
- Department of Pharmaceutical Sciences, College of Pharmacy, Larkin University, Miami, FL, 33169, USA.
| |
Collapse
|
28
|
Hang W, Feng Y, Sang Z, Yang Y, Zhu Y, Huang Q, Xi X. Downregulation of miR-145-5p in cancer cells and their derived exosomes may contribute to the development of ovarian cancer by targeting CT. Int J Mol Med 2018; 43:256-266. [PMID: 30365097 PMCID: PMC6257844 DOI: 10.3892/ijmm.2018.3958] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2018] [Accepted: 09/11/2018] [Indexed: 01/18/2023] Open
Abstract
The present study aimed to identify shared microRNAs (miRNAs) in ovarian cancer (OC) cells and their exosomes using microarray data (accession number GSE103708) available from the Gene Expression Omnibus database, including exosomal samples from 13 OC cell lines and 3 normal ovarian surface epithelial cell lines, and their original cell samples. Differentially expressed miRNAs (DE‑miRNAs) were identified using the Linear Models for Microarray data method, and mRNA targets of DE‑miRNAs were predicted using the miRWalk2 database. The potential functions of target genes were analyzed using Database for Annotation, Visualization and Integrated Discovery and intersected with known OC‑associated pathways downloaded from the Comparative Toxicogenomics Database. The associations between crucial miRNAs and target genes, and their clinical associations, were validated using data from The Cancer Genome Atlas. As a result, 16 upregulated and 6 downregulated DE‑miRNAs were shared in OC cell lines and their exosomes compared with normal controls. The target genes of 11 common DE‑miRNAs were predicted. Among these DE‑miRNAs, a low expression of homo sapiens (hsa)‑miR‑145‑5p was significantly correlated with a poor prognosis and higher stages. Although 91 target genes were predicted for hsa‑miR‑145‑5p, only 4 genes [connective tissue growth factor (CTGF), myotubularin‑related protein 14, protein phosphatase 3 catalytic subunit alpha and suppressor of cytokine signaling 7] were suggested as risk factors for prognosis. The subsequent Pearson's correlation analysis validated a significant negative correlation between hsa‑miR‑145‑5p and CTGF (r=‑0.1126, P=0.02188). According to the results of the functional analysis, CTGF is involved in the Hippo signaling pathway (hsa04390). In conclusion, decreased expression of hsa‑miR‑145 in OC and OC‑derived exosomes may be a crucial biomarker for the diagnosis and treatment of OC.
Collapse
Affiliation(s)
- Wenzhao Hang
- Department of Obstetrics and Gynecology, Shanghai General Hospital of Nanjing Medical University, Shanghai 200080, P.R. China
| | - Yiwen Feng
- Department of Obstetrics and Gynecology, Shanghai General Hospital of Nanjing Medical University, Shanghai 200080, P.R. China
| | - Zhenyu Sang
- Department of Obstetrics and Gynecology, Shanghai General Hospital of Nanjing Medical University, Shanghai 200080, P.R. China
| | - Ye Yang
- Department of Obstetrics and Gynecology, Shanghai General Hospital of Nanjing Medical University, Shanghai 200080, P.R. China
| | - Yaping Zhu
- Department of Obstetrics and Gynecology, Shanghai General Hospital of Nanjing Medical University, Shanghai 200080, P.R. China
| | - Qian Huang
- Department of Oncology, Shanghai General Hospital of Nanjing Medical University, Shanghai 200080, P.R. China
| | - Xiaowei Xi
- Department of Obstetrics and Gynecology, Shanghai General Hospital of Nanjing Medical University, Shanghai 200080, P.R. China
| |
Collapse
|
29
|
Xie X, Huang Y, Chen L, Wang J. miR-221 regulates proliferation and apoptosis of ovarian cancer cells by targeting BMF. Oncol Lett 2018; 16:6697-6704. [PMID: 30405811 DOI: 10.3892/ol.2018.9446] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2017] [Accepted: 03/23/2018] [Indexed: 12/15/2022] Open
Abstract
To observe the expression of microRNA-221 (miR-221) in ovarian cancer tissues and its effect and associated mechanism on proliferation and apoptosis in the ovarian cancer SKOV3 cell line. The expression of miR-221 and B-cell lymphoma 2 modifying factor (BMF) mRNA in ovarian cancer and para-carcinoma tissues was detected by reverse transcription-quantitative polymerase chain reaction, the expression of BMF was detected by western blot. MicroRNA.org online predicted that BMF was the possible target gene of miR-221, and the regulatory association was validated by a dual-luciferase reporter gene assay. SKOV3 cells were divided into 8 transfection groups: Anti-miR-negative control (NC); anti-miR-221; phosphorylated internal ribosome entry site 2 (pIRES2)-blank, pIRES2-BMF, small interfering (si)-NC, si-BMF, anti-miR-221+si-BMF and anti-miR-221+pIRES2-BMF groups. Cell proliferation was detected by EdU staining flow cytometry. The effect of transfection on cell apoptosis was detected by Annexin V/PI double staining, and the activity of caspase-3 was detected by spectrophotometry. The effect of anti-miR-221 or pIRES2-BMF transfection on SKOV3 cell proliferation was detected by MTT assay and flow cytometry, and the effect on apoptosis was detected by the Annexin V/PI double staining. Compared with para-cancer tissues, the miR-221 expression was significantly upregulated (P<0.001), the BMF mRNA expression was significantly downregulated (P<0.001), and the expression of BMF proteins was significantly downregulated in the ovarian cancer tissues. Dual-luciferase reporter gene assay confirmed a targeted regulatory association between miR-221 and BMF. The anti-miR-221 or pIRES2-BMF transfection significantly upregulated BMF expression in SKOV3 cells, significantly decreased cell proliferation and significantly increased cell apoptosis. The overexpression of BMF may enhance the proapoptotic and proliferation-inhibition effect of anti-miR-221 on SKOV3 cells. The transfection of si-BMF significantly promoted cell proliferation, reduced cell apoptosis and attenuated the proapoptotic and proliferation-inhibition effect of anti-miR-221 on cells. The expression of miR-221 was significantly upregulated and the expression of BMF was significantly down-regulated in ovarian cancer tissues. The overexpression of miR-221 antagonized the apoptosis of ovarian cancer SKOV3 cell and promoted the cell proliferation by targeted inhibition of the expression of BMF, which may serve a role in the pathogenesis of ovarian cancer.
Collapse
Affiliation(s)
- Xinping Xie
- Department of Gynecology and Obstetrics, The First Affiliated Hospital of Fujian Medical University, Fuzhou, Fujian 350004, P.R. China
| | - Yuxiu Huang
- Department of Gynecology and Obstetrics, The First Affiliated Hospital of Fujian Medical University, Fuzhou, Fujian 350004, P.R. China
| | - Lihong Chen
- Department of Gynecology and Obstetrics, The First Affiliated Hospital of Fujian Medical University, Fuzhou, Fujian 350004, P.R. China
| | - Jinhua Wang
- Department of Gynecology and Obstetrics, The First Affiliated Hospital of Fujian Medical University, Fuzhou, Fujian 350004, P.R. China
| |
Collapse
|
30
|
Liu DT, Yao HR, Li YY, Song YY, Su MY. MicroRNA-19b promotes the migration and invasion of ovarian cancer cells by inhibiting the PTEN/AKT signaling pathway. Oncol Lett 2018; 16:559-565. [PMID: 29963131 PMCID: PMC6019979 DOI: 10.3892/ol.2018.8695] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2016] [Accepted: 01/30/2018] [Indexed: 12/17/2022] Open
Abstract
Local and systemic metastasis is the main reason for the poor survival rate of patients with ovarian cancer (OC). MicroRNAs (miRNAs/miRs) are short non-coding RNAs that serve critical roles in the initiation and progression of OC. The present study demonstrated that expression of miR-19b was significantly increased in OC tissues and cell lines. Analysis of clinicopathological features revealed that the increased expression of miR-19b was associated with advanced International Federation of Gynecology and Obstetrics stage and lymphatic metastasis of OC patients. Loss-of-function experiments demonstrated that the silencing of miR-19b reduced the migration and invasion of OVCAR-3 cells; contrarily, the overexpression of miR-19b facilitated the migration and invasion of CAOV-3 cells. Furthermore, miR-19b regulated the expression of phosphatase and tensin homolog (PTEN) and the activity of the PTEN/RAC serine/threonine-protein kinase pathway in vitro. Notably, the results of dual-luciferase reporter assays indicated that PTEN was a direct downstream target of miR-19b in OC. Taken together, the results of the current study demonstrated that miR-19b serves an oncogenic role in the progression of OC, and could potentially act as a biomarker and therapeutic target for OC patients.
Collapse
Affiliation(s)
- Dan-Tong Liu
- Department of Gynecology, Cangzhou Central Hospital, Cangzhou, Hebei 061001, P.R. China
| | - Hai-Rong Yao
- Department of Gynecology, Cangzhou Central Hospital, Cangzhou, Hebei 061001, P.R. China
| | - Yan-Ying Li
- Department of Gynecology, Cangzhou Central Hospital, Cangzhou, Hebei 061001, P.R. China
| | - Yang-Yang Song
- Department of Gynecology, Cangzhou Central Hospital, Cangzhou, Hebei 061001, P.R. China
| | - Meng-Ya Su
- Department of Gynecology, Cangzhou Central Hospital, Cangzhou, Hebei 061001, P.R. China
| |
Collapse
|
31
|
Essaadi A, Nollet M, Moyon A, Stalin J, Simoncini S, Balasse L, Bertaud A, Bachelier R, Leroyer AS, Sarlon G, Guillet B, Dignat-George F, Bardin N, Blot-Chabaud M. Stem cell properties of peripheral blood endothelial progenitors are stimulated by soluble CD146 via miR-21: potential use in autologous cell therapy. Sci Rep 2018; 8:9387. [PMID: 29925894 PMCID: PMC6010456 DOI: 10.1038/s41598-018-27715-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2017] [Accepted: 05/21/2018] [Indexed: 12/27/2022] Open
Abstract
Cell-based therapies constitute a real hope for the treatment of ischaemic diseases. One of the sources of endothelial progenitors for autologous cell therapy is Endothelial Colony Forming Cells (ECFC) that can be isolated from peripheral blood. However, their use is limited by their low number in the bloodstream and the loss of their stem cell phenotype associated with the acquisition of a senescent phenotype in culture. We hypothesized that adding soluble CD146, a novel endothelial growth factor with angiogenic properties, during the isolation and growth procedures could improve their number and therapeutic potential. Soluble CD146 increased the number of isolated peripheral blood ECFC colonies and lowered their onset time. It prevented cellular senescence, induced a partial mesenchymal phenotype and maintained a stem cell phenotype by stimulating the expression of embryonic transcription factors. These different effects were mediated through the induction of mature miR-21. When injected in an animal model of hindlimb ischaemia, sCD146-primed ECFC isolated from 40 ml of blood from patients with peripheral arterial disease were able to generate new blood vessels and restore blood flow. Treatment with sCD146 could thus constitute a promising strategy to improve the use of autologous cells for the treatment of ischaemic diseases.
Collapse
Affiliation(s)
- Amel Essaadi
- Aix Marseille Univ, INSERM 1263, INRA 1260, C2VN, Marseille, France
| | - Marie Nollet
- Aix Marseille Univ, INSERM 1263, INRA 1260, C2VN, Marseille, France
| | - Anaïs Moyon
- Aix Marseille Univ, INSERM 1263, INRA 1260, C2VN, Marseille, France.,CERIMED (European Center of Research in Medical Imaging), Aix-Marseille University, Marseille, France
| | - Jimmy Stalin
- Aix Marseille Univ, INSERM 1263, INRA 1260, C2VN, Marseille, France
| | | | - Laure Balasse
- CERIMED (European Center of Research in Medical Imaging), Aix-Marseille University, Marseille, France
| | | | | | | | - Gabrielle Sarlon
- Service of Vascular Surgery, La Timone Hospital, Marseille, France
| | - Benjamin Guillet
- Aix Marseille Univ, INSERM 1263, INRA 1260, C2VN, Marseille, France.,CERIMED (European Center of Research in Medical Imaging), Aix-Marseille University, Marseille, France
| | | | - Nathalie Bardin
- Aix Marseille Univ, INSERM 1263, INRA 1260, C2VN, Marseille, France
| | | |
Collapse
|
32
|
Wei D, Miao Y, Yu L, Wang D, Wang Y. Downregulation of microRNA‑198 suppresses cell proliferation and invasion in retinoblastoma by directly targeting PTEN. Mol Med Rep 2018; 18:595-602. [PMID: 29749457 DOI: 10.3892/mmr.2018.8979] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2018] [Accepted: 04/20/2018] [Indexed: 11/05/2022] Open
Abstract
A number of studies have highlighted that aberrantly expressed microRNAs (miRNAs/miRs) serve crucial roles in the tumorigenesis and tumor development of retinoblastoma (RB). Hence, a full investigation of the biological roles and regulatory mechanisms of miRNAs in RB may provide novel therapeutic targets for patients with this malignancy. miR‑198 is frequently abnormally expressed in various types of human cancers. However, the expression level, biological roles and underlying mechanisms of miR‑198 in RB remain to be elucidated. In the present study, miR‑198 expression was upregulated in RB tissues and cell lines. Silencing of miR‑198 attenuated cell proliferation and invasion in RB. In addition, phosphatase and tensin homolog deleted on chromosome ten (PTEN) was predicted as a potential target of miR‑198 using bioinformatics analysis. Subsequent luciferase reporter assay indicated that the 3'‑untranslated region of PTEN can be directly targeted by miR‑198. Furthermore, miR‑198 inhibition increased the PTEN expression at the mRNA and protein levels in RB cells. In addition, PTEN mRNA expression was downregulated in RB tissues, and this downregulation was inversely associated with the expression level of miR‑198. PTEN knockdown rescued the inhibitory effects of miR‑198 underexpression on cell proliferation and invasion in RB. Notably, the downregulation of miR‑198 inactivated the phosphoinositide 3‑kinase (PI3K)/protein kinase B (AKT) signaling pathway in RB. These results demonstrated that miR‑198 may serve oncogenic roles in RB by directly targeting PTEN and regulating the PI3K/AKT signaling pathway. Hence, miR‑198 may be a promising therapeutic target for patients with RB.
Collapse
Affiliation(s)
- Dongdong Wei
- Department of Ophthalmology, Dezhou People's Hospital, Dezhou, Shandong 253000, P.R. China
| | - Yingbin Miao
- Department of Ophthalmology, Dezhou People's Hospital, Dezhou, Shandong 253000, P.R. China
| | - Lianxia Yu
- Department of Ophthalmology, The Second People Hospital of Dezhou, Dezhou, Shandong 253024, P.R. China
| | - Degong Wang
- Department of Ophthalmology, Dezhou People's Hospital, Dezhou, Shandong 253000, P.R. China
| | - Yingli Wang
- Department of Ophthalmology, Yantai Yeda Hospital, Yantai, Shandong 264006, P.R. China
| |
Collapse
|
33
|
Choi C, Yoon S, Moon H, Bae YU, Kim CB, Diskul-Na-Ayudthaya P, Ngu TV, Munir J, Han J, Park SB, Moon JS, Song S, Ryu S. mirRICH, a simple method to enrich the small RNA fraction from over-dried RNA pellets. RNA Biol 2018; 15:763-772. [PMID: 29638187 PMCID: PMC6152462 DOI: 10.1080/15476286.2018.1451723] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
Techniques to isolate the small RNA fraction (<200nt) by column-based methods are commercially available. However, their use is limited because of the relatively high cost. We found that large RNA molecules, including mRNAs and rRNAs, are aggregated together in the presence of salts when RNA pellets are over-dried. Moreover, once RNA pellets are over-dried, large RNA molecules are barely soluble again during the elution process, whereas small RNA molecules (<100nt) can be eluted. We therefore modified the acid guanidinium thiocyanate-phenol-chloroform (AGPC)-based RNA extraction protocol by skipping the 70% ethanol washing step and over-drying the RNA pellet for 1 hour at room temperature. We named this novel small RNA isolation method “mirRICH.” The quality of the small RNA sequences was validated by electrophoresis, next-generation sequencing, and quantitative PCR, and the findings support that our newly developed column-free method can successfully and efficiently isolate small RNAs from over-dried RNA pellets.
Collapse
Affiliation(s)
- Cheolwon Choi
- a Soonchunhyang Institute of Med-bioscience (SIMS), Soonchunhyang University , South Korea
| | - Seulgi Yoon
- a Soonchunhyang Institute of Med-bioscience (SIMS), Soonchunhyang University , South Korea
| | - Hyesu Moon
- a Soonchunhyang Institute of Med-bioscience (SIMS), Soonchunhyang University , South Korea
| | - Yun-Ui Bae
- a Soonchunhyang Institute of Med-bioscience (SIMS), Soonchunhyang University , South Korea
| | - Chae-Bin Kim
- b Department of Life Science and Biotechnology , Soonchunhyang University , South Korea
| | | | - Trinh Van Ngu
- a Soonchunhyang Institute of Med-bioscience (SIMS), Soonchunhyang University , South Korea
| | - Javaria Munir
- a Soonchunhyang Institute of Med-bioscience (SIMS), Soonchunhyang University , South Korea
| | - JaeWook Han
- c Department of Life Science , Korea University , South Korea
| | | | - Jong-Seok Moon
- a Soonchunhyang Institute of Med-bioscience (SIMS), Soonchunhyang University , South Korea
| | - Sujung Song
- a Soonchunhyang Institute of Med-bioscience (SIMS), Soonchunhyang University , South Korea
| | - Seongho Ryu
- a Soonchunhyang Institute of Med-bioscience (SIMS), Soonchunhyang University , South Korea
| |
Collapse
|
34
|
Chen C, Feng ZY, Jiang GQ, Gu YL, Jin K, Chu DM. TGF-β1 gene silencing can enhances the sensitivity of breast cancer to cisplatin partially by restraining the occurrence of EMT. INTERNATIONAL JOURNAL OF CLINICAL AND EXPERIMENTAL PATHOLOGY 2017; 10:10751-10758. [PMID: 31966418 PMCID: PMC6965821] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 06/30/2017] [Accepted: 08/17/2017] [Indexed: 06/10/2023]
Abstract
Breast cancer is one of the most common gynecological malignant tumors, the main reason of treatment failure is distant metastasis and local recurrence. TGF-β1 as a versatile polypeptide molecule plays an important role in inducing EMT to promote tumor invasion and metastasis. This study aims to investigate the effect of TGF-β1 on cisplatin (DDP) inhibiting the proliferation, migration and invasion of breast cancer and its correlation with EMT. TGF-β1 siRNA were transfected into MCF-7 cells. The cell morphology, proliferation, migration and invasion ability changes were detected by inverted microscope, clone formation assay, cell adhesion assay and Transwell Chamber Invasion. The expression of E-cadherin, vimentin, α-SMA were detected by Western blot. The results showed that TGF-β1 siRNA were transfected into MCF-7 cells successfully (P<0.05). The inhibitory activity of cisplatin on cell proliferation, migration and invasion of breast cancer were significantly enhanced after TGF-β1 siRNA transfection (P<0.05). The expression of E-cadherin was up-regulated, and vimentin and α-SMA were down-regulated with TGF-β1 siRNA transfection (P<0.05). Therefore, we concluded that TGF-β1 gene silencing can enhance the sensitivity of breast cancer to cisplatin on proliferation, migration and invasion partially by restraining the occurrence of EMT.
Collapse
Affiliation(s)
- Chao Chen
- Department of General Surgery, Changshu No.2 People’s HospitalChangshu, China
| | - Zhen-Yu Feng
- Department of General Surgery, The Second Hospital of Suzhou UniversitySuzhou, China
| | - Guo-Qin Jiang
- Department of General Surgery, The Second Hospital of Suzhou UniversitySuzhou, China
| | - Yan-Lin Gu
- Department of General Surgery, The Second Hospital of Suzhou UniversitySuzhou, China
| | - Ke Jin
- Department of General Surgery, Changshu No.2 People’s HospitalChangshu, China
| | - Dong-Ming Chu
- Department of General Surgery, Changshu Dong-Ming HospitalChangshu, China
| |
Collapse
|
35
|
MicroRNA-25 inhibits high glucose-induced apoptosis in renal tubular epithelial cells via PTEN/AKT pathway. Biomed Pharmacother 2017; 96:471-479. [PMID: 29031207 DOI: 10.1016/j.biopha.2017.10.019] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2017] [Revised: 09/17/2017] [Accepted: 10/02/2017] [Indexed: 01/08/2023] Open
Abstract
Diabetic nephropathy (DN) has become the major cause of end-stage renal disease (ESRD). It has been demonstrated that apoptosis of renal tubular epithelial cells induced by hyperglycemia contributes to the pathogenesis of DN. Recent researches have corroborated the critical roles of microRNAs (miRNAs) in the apoptosis of various types of cells including renal tubular epithelial cells. However, the eff ; ;ect of miRNAs on the hyperglycemia-induced apoptosis of renal tubular epithelial cells remains unclear. The aim of this study is to explore the eff ; ;ect of miRNAs on the hyperglycemia-induced apoptosis of renal tubular epithelial cells and its molecular mechanism. Using a miRNA microarray, miRNAs putatively associated with DN were examined in renal biopsy tissue samples from DN patients and healthy controls. Validation analysis of miR-25 level in serum samples and renal biopsy tissue samples was performed using quantitative reverse transcription PCR (qRT-PCR). Then, gain- and loss- of function experiments were performed to determine the protective roles of miR-25 in high glucose-induced damage to renal tubular epithelial cells. Furthermore, the target gene of miR-25 and the downstream signaling pathway were also investigated. Microarray analysis and qRT-PCR revealed that miR-25 was significantly downregulated in renal biopsy tissue and serum samples from DN patients. We also observed that an inverse relationship between serum miR-25 level and proteinuria in DN patients. Meanwhile, miR-25 was decreased in human kidney (HK-2) cells subjected to HG treatment in a time dependent manner. Its overexpression reduced production of reactive oxygen species (ROS), suppressed cell apoptosis in HG-induced cell damage model, which was coupled with the decreased expression of cleaved caspase-3 and activity of caspase-3. Subsequent analyses demonstrated that phosphatase and tensin homolog deleted on chromosome ten (PTEN) was a direct and functional target of miR-25, which was validated by the dual luciferase reporter assay. Most importantly, the overexpression of PTEN effectively reversed the protective effects of miR-25 mimics on renal tubular epithelial cell injury. We also found that the anti-apoptotic effects of miR-25 are dependent on the activation of PTEN/Akt pathway. In addition, we observed that PTEN was upregulated in renal biopsy tissue samples from patients with DN, and an inverse relationship was found between PTEN and miR-25 expression, suggesting that miR-25 may exert its function through regulation of PTEN in DN. Taken together, our study proved that overexpression of miR-25 could ameliorate HG-induced oxidative stress and apoptosis in renal tubular epithelial cells through activation of PTEN/AKT pathway, suggesting that overexpression of miR-25 might provide a potential therapeutic approach for DN.
Collapse
|
36
|
Tao Y, Yang S, Wu Y, Fang X, Wang Y, Song Y, Han T. MicroRNA-216a inhibits the metastasis of gastric cancer cells by targeting JAK2/STAT3-mediated EMT process. Oncotarget 2017; 8:88870-88881. [PMID: 29179483 PMCID: PMC5687653 DOI: 10.18632/oncotarget.21488] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2017] [Accepted: 08/28/2017] [Indexed: 12/12/2022] Open
Abstract
MicroRNAs (miRNAs), a group of small, non-protein coding, endogenous RNAs, play critical roles in the tumorigenesis and progression of human cancer. miR-216a has recently been reported to play an oncogenic role in human cancer. While, the expression of miR-216a, its biological function and underlying molecular mechanisms in gastric cancer (GC) are largely unknown. In this study, we revealed that miR-216a was underexpressed in GC tissues compared to matched noncancerous tissues. Decreased levels of miR-216a were confirmed in GC cell lines compared with a normal gastric epithelium cell line. miR-216a underexpression was associated with malignant prognostic features including lymph node metastasis, venous infiltration, invasive depth and advanced TNM stage. GC patients with low miR-216a level showed an obvious shorter overall survival. miR-216a overexpression restrained migration and invasion of MGC-803 cells, while its knockdown exerted opposite effects on metastatic behaviors of SGC-7901 cells. In vivo experiments found that miR-216a restoration reduced metastatic nodes of GC cells in nude mice liver. miR-216a notably suppressed epithelial-mesenchymal transition (EMT) of GC cells. Janus kinase 2 (JAK2) was recognized as a direct target and downstream mediator of miR-216a in GC cells. Interestingly, JAK2/signal transducer and activator of transcription 3 (STAT3) pathway was prominently inactivated by miR-216a and probably mediated the role of miR-216a in the regulation of migration, invasion and EMT process of GC cells. In conclusion, these data suggest that miR-216a functions as a tumor suppressive miRNA in the development of GC possibly by targeting JAK2/STAT3-mediated EMT.
Collapse
Affiliation(s)
- Youmao Tao
- Department of Gastrointestinal Colorectal and Anal Surgery, China-Japan Union Hospital of Jilin University, Changchun, Jilin Province 130033, China
| | - Songbai Yang
- Department of Vascular Surgery, China-Japan Union Hospital of Jilin University, Changchun, Jilin Province 130033, China
| | - Yuanyu Wu
- Department of Gastrointestinal Colorectal and Anal Surgery, China-Japan Union Hospital of Jilin University, Changchun, Jilin Province 130033, China
| | - Xuedong Fang
- Department of Gastrointestinal Colorectal and Anal Surgery, China-Japan Union Hospital of Jilin University, Changchun, Jilin Province 130033, China
| | - Yannan Wang
- Department of Gastrointestinal Colorectal and Anal Surgery, China-Japan Union Hospital of Jilin University, Changchun, Jilin Province 130033, China
| | - Yan Song
- Department of Gastrointestinal Colorectal and Anal Surgery, China-Japan Union Hospital of Jilin University, Changchun, Jilin Province 130033, China
| | - Tao Han
- Department of Vascular Surgery, China-Japan Union Hospital of Jilin University, Changchun, Jilin Province 130033, China
| |
Collapse
|
37
|
Wu Y, Zhang J, Zheng Y, Ma C, Liu XE, Sun X. miR-216a-3p Inhibits the Proliferation, Migration, and Invasion of Human Gastric Cancer Cells via Targeting RUNX1 and Activating the NF-κB Signaling Pathway. Oncol Res 2017; 26:157-171. [PMID: 28835317 PMCID: PMC7844601 DOI: 10.3727/096504017x15031557924150] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
This work aims to elucidate the effects and the potential underlying mechanisms of microRNA-216a-3p (miR-216a-3p) on the proliferation, migration, and invasion of gastric cancer (GC) cells. In this study, we revealed that the expression of miR-216a-3p was significantly elevated in GC tissues and cell lines. The different expression level of miR-216a-3p was firmly correlated with clinicopathological characteristics of GC patients. We next demonstrated that upregulation of miR-216a-3p could dramatically promote the ability of proliferation, migration, and invasion of GC cells using a series of experiments, whereas downregulation essentially inhibited these properties. Additionally, through bioinformatics analysis and biological approaches, we confirmed that runt-related transcription factor 1 (RUNX1) was a direct target of miR-216a-3p, and overexpression of RUNX1 could reverse the potential effect of miR-216a-3p on GC cells. Furthermore, mechanistic investigation using Western blot analysis showed that downregulation of RUNX1 by miR-216a-3p could stimulate the activation of NF-κB signaling pathway. In summary, this work proved that miR-216a-3p can promote GC cell proliferation, migration, and invasion via targeting RUNX1 and activating the NF-κB signaling pathway. Therefore, miR-216a-3p/RUNX1 could be a possible molecular target for innovative therapeutic agents against GC.
Collapse
Affiliation(s)
- Yinfang Wu
- The Second Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou, Zhejiang Province, P.R. China
| | - Jun Zhang
- Department of Gastroenterology, Zhejiang Provincial People's Hospital, Hangzhou, Zhejiang Province, P.R. China
| | - Yu Zheng
- Department of Hepatobiliary and Pancreatic Surgery, Zhejiang Provincial People's Hospital, Hangzhou, Zhejiang Province, P.R. China
| | - Cheng Ma
- Department of Hepatobiliary and Pancreatic Surgery, Zhejiang Provincial People's Hospital, Hangzhou, Zhejiang Province, P.R. China
| | - Xing-E Liu
- Department of Medical Oncology, Zhejiang Hospital, Hangzhou, Zhejiang Province, P.R. China
| | - Xiaodong Sun
- The Second Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou, Zhejiang Province, P.R. China
| |
Collapse
|