1
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Ali YB, Hasan NM, El-Maadawy EA, Bassyouni IH, El-Shahat M, Talaat RM. Association between IL-6, miRNA-146a, MALAT1 genetic polymorphisms and risk of rheumatoid arthritis. Per Med 2024:1-18. [PMID: 39263956 DOI: 10.1080/17410541.2024.2393072] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Accepted: 10/14/2022] [Indexed: 09/13/2024]
Abstract
Aim: This study aimed to investigate the associations between single nucleotide polymorphisms (SNPs) of IL-6 (-174G/C), microRNA146a (rs2910164C/G) and MALAT1 (rs619586A/G) and susceptibility to rheumatoid arthritis (RA) in Egyptians.Methods: SNPs were genotyped in 101 RA patients and 104 controls. Expression levels were evaluated either by Enzyme-linked immunosorbent assay (ELISA) for IL-6 or quantitative real-time PCR (qRT-PCR) for miR-146a and MALAT1.Results: IL-6-174 GC (OR = 3.422) genotype, IL-6-174 C allele (OR = 2.565), miR-146a (rs2910164) CG (OR = 2.190) and MALAT1 (rs619586) AA (OR = 4.125) genotypes and A allele (OR = 6.122) could be considered as risk factors for RA. An increase in the expression of IL-6, miR-146a and MALAT1 was detected in RA patients, which was independent of any SNP.Conclusion: SNPs of IL-6, miR-146a and MALAT1were linked to RA predisposition in Egyptians.
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Affiliation(s)
- Yasser Bm Ali
- Molecular Biology Department, Genetic Engineering & Biotechnology Research Institute (GEBRI), University of Sadat City, 32958, Egypt
| | - Noura Ma Hasan
- Molecular Biology Department, Genetic Engineering & Biotechnology Research Institute (GEBRI), University of Sadat City, 32958, Egypt
| | - Eman A El-Maadawy
- Molecular Biology Department, Genetic Engineering & Biotechnology Research Institute (GEBRI), University of Sadat City, 32958, Egypt
| | - Iman H Bassyouni
- Rheumatology & Rehabilitation Department, Faculty of Medicine, Cairo University, Cairo, 32958, Egypt
| | - Mohamed El-Shahat
- Molecular Biology Department, Genetic Engineering & Biotechnology Research Institute (GEBRI), University of Sadat City, 32958, Egypt
| | - Roba M Talaat
- Molecular Biology Department, Genetic Engineering & Biotechnology Research Institute (GEBRI), University of Sadat City, 32958, Egypt
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2
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Anbiyaee O, Moalemnia A, Ghaedrahmati F, Shooshtari MK, Khoshnam SE, Kempisty B, Halili SA, Farzaneh M, Morenikeji OB. The functions of long non-coding RNA (lncRNA)-MALAT-1 in the pathogenesis of renal cell carcinoma. BMC Nephrol 2023; 24:380. [PMID: 38124072 PMCID: PMC10731893 DOI: 10.1186/s12882-023-03438-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2023] [Accepted: 12/12/2023] [Indexed: 12/23/2023] Open
Abstract
Renal cell carcinoma (RCC), a prevalent form of renal malignancy, is distinguished by its proclivity for robust tumor proliferation and metastatic dissemination. Long non-coding RNAs (lncRNAs) have emerged as pivotal modulators of gene expression, exerting substantial influence over diverse biological processes, encompassing the intricate landscape of cancer development. Metastasis-associated lung adenocarcinoma transcript 1 (MALAT-1), an exemplar among lncRNAs, has been discovered to assume functional responsibilities within the context of RCC. The conspicuous expression of MALAT-1 in RCC cells has been closely linked to the advancement of tumors and an unfavorable prognosis. Experimental evidence has demonstrated the pronounced ability of MALAT-1 to stimulate RCC cell proliferation, migration, and invasion, thereby underscoring its active participation in facilitating the metastatic cascade. Furthermore, MALAT-1 has been implicated in orchestrating angiogenesis, an indispensable process for tumor expansion and metastatic dissemination, through its regulatory influence on pro-angiogenic factor expression. MALAT-1 has also been linked to the evasion of immune surveillance in RCC, as it can regulate the expression of immune checkpoint molecules and modulate the tumor microenvironment. Hence, the potential utility of MALAT-1 as a diagnostic and prognostic biomarker in RCC emerges, warranting further investigation and validation of its clinical significance. This comprehensive review provides an overview of the diverse functional roles exhibited by MALAT-1 in RCC.
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Affiliation(s)
- Omid Anbiyaee
- Cardiovascular Research Center, School of Medicine, Namazi Hospital, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Arash Moalemnia
- Faculty of Medicine, Dezful University of Medical Sciences, Dezful, Iran
| | - Farhoodeh Ghaedrahmati
- Department of Immunology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Maryam Khombi Shooshtari
- Chronic Renal Failure Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Seyed Esmaeil Khoshnam
- Persian Gulf Physiology Research Center, Medical Basic Sciences Research Institute, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Bartosz Kempisty
- Department of Human Morphology and Embryology Division of Anatomy, Wrocław Medical University, Wrocław, Poland
- Department of Veterinary Surgery, Institute of Veterinary Medicine, Nicolaus Copernicus University, Torun, Poland
- Physiology Graduate Faculty North, Carolina State University, Raleigh, NC, 27695, US
- Center of Assisted Reproduction Department of Obstetrics and Gynecology, University Hospital and Masaryk University, Brno, Czech Republic
| | - Shahla Ahmadi Halili
- Department of Internal Medicine, School of Science, Chronic Renal Failure Research Center, Ahvaz Jundishapur University of Medical Science, Ahvaz, Iran
| | - Maryam Farzaneh
- Fertility, Infertility and Perinatology Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.
| | - Olanrewaju B Morenikeji
- Division of Biological and Health Sciences, University of Pittsburgh at Bradford, Bradford, PA, USA.
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Xian F, Zhao C, Huang C, Bie J, Xu G. The potential role of CDC20 in tumorigenesis, cancer progression and therapy: A narrative review. Medicine (Baltimore) 2023; 102:e35038. [PMID: 37682144 PMCID: PMC10489547 DOI: 10.1097/md.0000000000035038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Accepted: 08/11/2023] [Indexed: 09/09/2023] Open
Abstract
The cell division cycle 20 homologue (CDC20) is known to regulate the cell cycle. Many studies have suggested that dysregulation of CDC20 is associated with various pathological processes in malignant solid tumors, including tumorigenesis, progression, chemoradiotherapy resistance, and poor prognosis, providing a biomarker for cancer diagnosis and prognosis. Some researchers have demonstrated that CDC20 also regulates apoptosis, immune microenvironment, and tumor angiogenesis. In this review, we have systematically summarized the biological functions of CDC20 in solid cancers. Furthermore, we briefly synthesized multiple medicines that inhibited CDC20. We anticipate that CDC20 will be a promising and effective biomarker and therapeutic target for the treatment of human cancer.
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Affiliation(s)
- Feng Xian
- School of Medicine, University of Electronic Science and Technology of China, Chengdu, China
- Department of Oncology, Nanchong Central Hospital, The Second Clinical College of North Sichuan Medical College, Nanchong, China
| | - Caixia Zhao
- Department of Oncology, Nanchong Central Hospital, The Second Clinical College of North Sichuan Medical College, Nanchong, China
| | - Chun Huang
- School of Medicine, University of Electronic Science and Technology of China, Chengdu, China
| | - Jun Bie
- Department of Oncology, Nanchong Central Hospital, The Second Clinical College of North Sichuan Medical College, Nanchong, China
| | - Guohui Xu
- Department of Interventional Radiology, Sichuan Clinical Research Center for Cancer, Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, Affiliated Cancer Hospital of University of Electronic Science and Technology of China, Chengdu, China
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4
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Sameti P, Tohidast M, Amini M, Bahojb Mahdavi SZ, Najafi S, Mokhtarzadeh A. The emerging role of MicroRNA-182 in tumorigenesis; a promising therapeutic target. Cancer Cell Int 2023; 23:134. [PMID: 37438760 DOI: 10.1186/s12935-023-02972-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Accepted: 06/13/2023] [Indexed: 07/14/2023] Open
Abstract
A wide range of studies have indicated that microRNAs (miRNAs), a type of small single-stranded regulatory RNAs, are dysregulated in a different variety of human cancers. Therefore, they are expected to play important roles in tumorigenesis by functioning as oncogenic (oncomiRs) or tumor-suppressive miRNAs. Subsequently, their potential as diagnostic and therapeutic targets for malignancies has attracted attention in recent years. In particular, studies have revealed the aberrant expression of miR-182 through tumorigenesis and its important roles in various aspects of malignancies, including proliferation, metastasis, and chemoresistance. Accumulating reports have illustrated that miR-182, as a dual-role regulator, directly or indirectly regulates the expression of a wide range of genes and modulates the activity of various signaling pathways involved in tumor progression, such as JAK / STAT3, Wnt / β-catenin, TGF-β, and P13K / AKT. Therefore, considering the high therapeutic and diagnostic potential of miR-182, this review aims to point out the effects of miR-182 dysregulation on the signaling pathways involved in tumorigenesis.
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Affiliation(s)
- Pouriya Sameti
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Maryam Tohidast
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mohammad Amini
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | | | - Souzan Najafi
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Ahad Mokhtarzadeh
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.
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Vahabzadeh G, Khalighfard S, Alizadeh AM, Yaghobinejad M, Mardani M, Rastegar T, Barati M, Roudbaraki M, Esmati E, Babaei M, Kazemian A. A systematic method introduced a common lncRNA-miRNA-mRNA network in the different stages of prostate cancer. Front Oncol 2023; 13:1142275. [PMID: 37251950 PMCID: PMC10215985 DOI: 10.3389/fonc.2023.1142275] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2023] [Accepted: 04/24/2023] [Indexed: 05/31/2023] Open
Abstract
Introduction The present study aimed to investigate the interaction of the common lncRNA-miRNA-mRNA network involved in signaling pathways in different stages of prostate cancer (PCa) by using bioinformatics and experimental methods. Methods Seventy subjects included sixty PCa patients in Local, Locally Advanced, Biochemical Relapse, Metastatic, and Benign stages, and ten healthy subjects were entered into the current study. The mRNAs with significant expression differences were first found using the GEO database. The candidate hub genes were then identified by analyzing Cytohubba and MCODE software. Cytoscape, GO Term, and KEGG software determined hub genes and critical pathways. The expression of candidate lncRNAs, miRNAs, and mRNAs was then assessed using Real-Time PCR and ELISA techniques. Results 4 lncRNAs, 5 miRNAs, and 15 common target genes were detected in PCa patients compared with the healthy group. Unlike the tumor suppressors, the expression levels of common onco-lncRNAs, oncomiRNAs, and oncogenes showed a considerable increase in patients with advanced stages; Biochemical Relapse and Metastatic, in comparison to the primary stages; Local and Locally Advanced. Additionally, their expression levels significantly increased with a higher Gleason score than a lower one. Conclusion Identifying a common lncRNA-miRNA-mRNA network associated with prostate cancer may be clinically valuable as potential predictive biomarkers. They can also serve as novel therapeutic targets for PCa patients.
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Affiliation(s)
- Gelareh Vahabzadeh
- Razi Drug Research Center, Iran University of Medical Sciences, Tehran, Iran
| | | | - Ali Mohammad Alizadeh
- Cancer Research Center, Cancer Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Mahsa Yaghobinejad
- Department of Anatomy, School of Medicine Tehran University of Medical Sciences, Tehran, Iran
| | - Mahta Mardani
- Cancer Research Center, Cancer Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Tayebeh Rastegar
- Department of Anatomy, School of Medicine Tehran University of Medical Sciences, Tehran, Iran
| | - Mahmood Barati
- Department of Medical Biotechnology, Faculty of Allied Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Morad Roudbaraki
- Laboratory of Cell Physiology, Inserm U1003, University of Lille, Villeneuve d’Ascq, France
| | - Ebrahim Esmati
- Radiation Oncology Research Center, Cancer Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Mohammad Babaei
- Radiation Oncology Research Center, Cancer Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Ali Kazemian
- Radiation Oncology Research Center, Cancer Institute, Tehran University of Medical Sciences, Tehran, Iran
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6
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Zhang Q, Ren H, Ge L, Zhang W, Song F, Huang P. A review on the role of long non-coding RNA and microRNA network in clear cell renal cell carcinoma and its tumor microenvironment. Cancer Cell Int 2023; 23:16. [PMID: 36732762 PMCID: PMC9893571 DOI: 10.1186/s12935-023-02861-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Accepted: 01/28/2023] [Indexed: 02/04/2023] Open
Abstract
Renal cell carcinoma (RCC) is the second lethal urogenital malignancy with the increasing incidence and mortality in the world. Clear cell renal cell carcinoma (ccRCC) is one major subtype of RCC, which accounts for about 70 to 80% of all RCC cases. Although many innovative therapeutic options have emerged during the last few decades, the efficacy of these treatments for ccRCC patients is very limited. To date, the prognosis of patients with advanced or metastatic ccRCC is still poor. The 5-year survival rate of these patients remains less than 10%, which mainly attributes to the complexity and heterogeneity of the tumor microenvironment (TME). It has been demonstrated that long non-coding RNAs (lncRNAs) perform an indispensable role in the initiation and progression of various tumors. They mostly function as sponges for microRNAs (miRNAs) to regulate the expression of target genes, finally influence the growth, metastasis, apoptosis, drug resistance and TME of tumor cells. However, the role of lncRNA/miRNA/mRNA axis in the TME of ccRCC remains poorly understood. In this review, we summarized the biological function of lncRNA/miRNA/mRNA axis in the pathogenesis of ccRCC, then discussed how lncRNA/miRNA/mRNA axis regulate the TME, finally highlighted their potential application as novel biomarkers and therapeutic targets for ccRCC.
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Affiliation(s)
- Qi Zhang
- grid.469325.f0000 0004 1761 325XDepartment of Pharmacology, College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou, China ,Center for Clinical Pharmacy, Cancer Center, Department of Pharmacy, Zhejiang Provincial People’s Hospital, Affiliated People’s Hospital, Hangzhou Medical College, Hangzhou, China
| | - Hao Ren
- grid.469325.f0000 0004 1761 325XDepartment of Pharmacology, College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou, China ,Center for Clinical Pharmacy, Cancer Center, Department of Pharmacy, Zhejiang Provincial People’s Hospital, Affiliated People’s Hospital, Hangzhou Medical College, Hangzhou, China
| | - Luqi Ge
- grid.469325.f0000 0004 1761 325XDepartment of Pharmacology, College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou, China ,Center for Clinical Pharmacy, Cancer Center, Department of Pharmacy, Zhejiang Provincial People’s Hospital, Affiliated People’s Hospital, Hangzhou Medical College, Hangzhou, China
| | - Wen Zhang
- grid.469325.f0000 0004 1761 325XDepartment of Pharmacology, College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou, China
| | - Feifeng Song
- Center for Clinical Pharmacy, Cancer Center, Department of Pharmacy, Zhejiang Provincial People’s Hospital, Affiliated People’s Hospital, Hangzhou Medical College, Hangzhou, China ,Key Laboratory of Endocrine Gland Diseases of Zhejiang Province, Hangzhou, China
| | - Ping Huang
- Center for Clinical Pharmacy, Cancer Center, Department of Pharmacy, Zhejiang Provincial People’s Hospital, Affiliated People’s Hospital, Hangzhou Medical College, Hangzhou, China ,Key Laboratory of Endocrine Gland Diseases of Zhejiang Province, Hangzhou, China
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7
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Mohammadisoleimani E, Firoozi Z, Naghizadeh MM, Asad AG, Jafari A, Pourjafarian MH, Ariafar A, Mansoori H, Dastsooz H, Sabaie H, Zeighami S, Mansoori Y. Expression analysis of hsa_circ_0020397, hsa_circ_0005986, hsa_circ_0003028, and hsa_circ_0006990 in renal cell carcinoma. Exp Mol Pathol 2023; 129:104848. [PMID: 36496205 DOI: 10.1016/j.yexmp.2022.104848] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Revised: 11/29/2022] [Accepted: 12/05/2022] [Indexed: 12/12/2022]
Abstract
Renal cell carcinoma (RCC) is a prevalent heterogeneous kidney cancer. So far, different genes have been reported for RCC development. However, its particular molecular mechanism remains unclear. Circular RNAs (circRNAs), a class of non-coding RNAs, are involved in numerous biological processes in different malignancies such as RCC. This study aims to assess the expression and underlying mechanism of four circRNAs (hsa_circ_0020397, hsa_circ_0005986, hsa_circ_0003028, hsa_circ_0006990) with possible new roles in RCC. In the experimental step, we investigated the expression of these four circRNAs in our RCC samples using quantitative real-time polymerase chain reaction. In the bioinformatics step, the differential expressed mRNAs (DEmRNAs), and miRNAs (DEmiRNAs) were obtained from the GEO datasets using the GEO2R tool. A protein-protein interaction network was constructed using the STRING database, and hub genes were identified by Cytoscape. Molecular pathways associated with hub genes were detected using KEGG pathway enrichment analysis. Then, we utilized the ToppGene database to detect the relationships between DEmiRNAs and hub genes. Furthermore, interactions between circRNAs and DEmiRNAs were predicted by the StarBase and circinteractome databases. Finally, a circRNA-DEmiRNA-hub gene triple network was constructed. Our results revealed that the expression of hsa_circ_0020397, hsa_circ_0005986, and hsa_circ_0006990 was downregulated in RCC tissues. Moreover, these circRNAs had a significantly lower expression in patients with a history of kidney disease. Furthermore, hsa_circ_0003028 and hsa_circ_0006990 showed higher expression in the tumor of participants with Lymphovascular/perineural invasion and oncocytoma type, respectively. Based on bioinformatic results, 15 circRNA-DEmiRNA-hub gene ceRNA regulatory axes were predicted, which included three hub genes, five miRNAs, and four selected circRNAs. In conclusion, the current work is the first to emphasize the expression of the hsa_circ_0020397, hsa_circ_0005986, hsa_circ_0003028, and hsa_circ_0006990 in RCC patients presents a novel perspective on the molecular processes underlying the pathogenic mechanisms of RCC.
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Affiliation(s)
- Elham Mohammadisoleimani
- Department of Medical Biotechnology, Fasa University of Medical Sciences, Fasa, Iran; USERN Office, Fasa University of Medical Sciences, Fasa, Iran
| | - Zahra Firoozi
- Department of Medical Genetics, Fasa University of Medical Sciences, Fasa, Iran
| | | | - Ali Ghanbari Asad
- Department of Medical Biotechnology, Fasa University of Medical Sciences, Fasa, Iran
| | - Anahita Jafari
- Urology Oncology Research Center, Shiraz University of medical sciences, Shiraz, Iran
| | | | - Ali Ariafar
- Urology Oncology Research Center, Shiraz University of medical sciences, Shiraz, Iran
| | - Hosein Mansoori
- Noncommunicable Diseases Research Center, Fasa University of Medical Sciences, Fasa, Iran
| | - Hassan Dastsooz
- IIGM-Italian Institute for Genomic Medicine, c/o IRCCS, Candiolo, Torino, Italy; Candiolo Cancer Institute, FPO-IRCCS, Candiolo Cancer (IT), Torino, Italy; Department of Life Sciences and Systems Biology, University of Turin, Via Accademia Albertina, 13, Turin 10123, Italy
| | - Hani Sabaie
- Department of Medical Genetics, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Shahryar Zeighami
- Urology Department, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Yaser Mansoori
- Department of Medical Genetics, Fasa University of Medical Sciences, Fasa, Iran; Noncommunicable Diseases Research Center, Fasa University of Medical Sciences, Fasa, Iran.
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DNA methylation-mediated low expression of ZNF582 promotes the proliferation, migration, and invasion of clear cell renal cell carcinoma. Clin Exp Nephrol 2023; 27:24-31. [PMID: 36129555 DOI: 10.1007/s10157-022-02275-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Accepted: 08/30/2022] [Indexed: 01/07/2023]
Abstract
OBJECTIVE The methylation of DNA promoter region mediates the low expression of many tumor suppressor genes and plays an essential part in cancer progression. We investigated methylation and expression of ZNF582 in clear cell renal cell carcinoma (ccRCC), and to study the function of ZNF582 in ccRCC cells. METHODS Methylation data and mRNA expression data of TCGA-KIRC were obtained from TCGA database to screen methylation-driven genes. Survival analysis and gene set enrichment analysis (GSEA) were done for the target gene. The methylation degree and mRNA level of ZNF582 in ccRCC cell line were detected by methylation-specific PCR (MSP) and qRT-PCR, respectively. Effects of overexpression of ZNF582 on ccRCC cells were assessed via CCK-8, flow cytometry, wound healing, Transwell, and cell adhesion assays. RESULTS Eighteen methylation-driven genes were identified via bioinformatics methods. Among them, ZNF582 was noticeably hypermethylated and lowly expressed in tumor tissue, and ZNF582 methylation and expression levels were pronouncedly associated with prognosis and clinical stage. MSP also displayed that the ZNF582 DNA promoter region was hypermethylated in ccRCC cells, and the mRNA expression of ZNF582 was dramatically elevated after demethylation. In vitro cell experiments disclosed that overexpression of ZNF582 markedly hindered cell proliferation, invasion, migration, and fostered cell apoptosis and adhesion of ccRCC. CONCLUSION ZNF582 was hypermethylated in ccRCC, which mediated its low level. Overexpression of ZNF582 inhibited tumor cell proliferation, migration and invasion. This study generates novel ideas for ccRCC diagnosis and treatment.
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Guo Z, Liu X, Shao H. E2F4-induced AGAP2-AS1 up-regulation accelerates the progression of colorectal cancer via miR-182-5p/CFL1 axis. Dig Liver Dis 2022; 54:878-889. [PMID: 34838479 DOI: 10.1016/j.dld.2021.08.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/26/2021] [Revised: 07/30/2021] [Accepted: 08/02/2021] [Indexed: 02/08/2023]
Abstract
BACKGROUND Long non-coding RNAs (lncRNAs) are closely associated with the pathogenesis of numerous diseases including cancers. LncRNA AGAP2 Antisense RNA 1 (AGAP2-AS1) has been found to participate in the tumorigenesis of several kinds of human cancers. Nonetheless, its potential function in colorectal cancer (CRC) was still poorly investigated. METHODS The expression level of RNAs or proteins was assessed by RT-qPCR or western blot analysis. Functional experiments were performed to analyze the role of AGAP2-AS1 in CRC in vitro and in vivo. Mechanism investigations were fulfilled to determine the potential mechanism of the molecules. RESULTS AGAP2-AS1 expression was significantly elevated in CRC cells and could be transcriptionally activated by E2F Transcription Factor 4 (E2F4). Down-regulated AGAP2-AS1 could weaken CRC cell growth, migration, invasion, and epithelial-mesenchymal transition (EMT). MicroRNA-182-5p (miR-182-5p) was the target downstream molecule of AGAP2-AS1. Furthermore, Cofilin 1 (CFL1) was proved as the target of miR-182-5p. Mechanically, AGAP2-AS1 could boost the CFL1 expression via competitively binding to miR-182-5p in CRC. Importantly, CFL1 restoration could counteract the in vitro and in vivo suppression of depleted AGAP2-AS1 on CRC progression. CONCLUSION E2F4-stimulated AGAP2-AS1 aggravated CRC development through regulating miR-182-5p/CFL1 axis, implying that AGAP2-AS1 might become a potent new target for future therapies for CRC.
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Affiliation(s)
- Zhen Guo
- Gastrointestinal Surgery, Liaocheng People's Hospital, Liaocheng, Shandong 252000, China
| | - Xuezhong Liu
- Gastrointestinal Surgery, Liaocheng People's Hospital, Liaocheng, Shandong 252000, China
| | - Hongjin Shao
- Anorectal Department, Liaocheng People's Hospital, NO.67 Dongchang West Road, Dongchangfu District, Liaocheng, Shandong 252000, China.
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Hatmal MM, Al-Hatamleh MAI, Olaimat AN, Alshaer W, Hasan H, Albakri KA, Alkhafaji E, Issa NN, Al-Holy MA, Abderrahman SM, Abdallah AM, Mohamud R. Immunomodulatory Properties of Human Breast Milk: MicroRNA Contents and Potential Epigenetic Effects. Biomedicines 2022; 10:1219. [PMID: 35740242 PMCID: PMC9219990 DOI: 10.3390/biomedicines10061219] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2022] [Revised: 05/15/2022] [Accepted: 05/17/2022] [Indexed: 02/07/2023] Open
Abstract
Infants who are exclusively breastfed in the first six months of age receive adequate nutrients, achieving optimal immune protection and growth. In addition to the known nutritional components of human breast milk (HBM), i.e., water, carbohydrates, fats and proteins, it is also a rich source of microRNAs, which impact epigenetic mechanisms. This comprehensive work presents an up-to-date overview of the immunomodulatory constituents of HBM, highlighting its content of circulating microRNAs. The epigenetic effects of HBM are discussed, especially those regulated by miRNAs. HBM contains more than 1400 microRNAs. The majority of these microRNAs originate from the lactating gland and are based on the remodeling of cells in the gland during breastfeeding. These miRNAs can affect epigenetic patterns by several mechanisms, including DNA methylation, histone modifications and RNA regulation, which could ultimately result in alterations in gene expressions. Therefore, the unique microRNA profile of HBM, including exosomal microRNAs, is implicated in the regulation of the genes responsible for a variety of immunological and physiological functions, such as FTO, INS, IGF1, NRF2, GLUT1 and FOXP3 genes. Hence, studying the HBM miRNA composition is important for improving the nutritional approaches for pregnancy and infant's early life and preventing diseases that could occur in the future. Interestingly, the composition of miRNAs in HBM is affected by multiple factors, including diet, environmental and genetic factors.
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Affiliation(s)
- Ma’mon M. Hatmal
- Department of Medical Laboratory Sciences, Faculty of Applied Medical Sciences, The Hashemite University, P.O. Box 330127, Zarqa 13133, Jordan;
| | - Mohammad A. I. Al-Hatamleh
- Department of Immunology, School of Medical Sciences, Universiti Sains Malaysia, Kubang Kerian, Kota Bharu 16150, Malaysia;
| | - Amin N. Olaimat
- Department of Clinical Nutrition and Dietetics, Faculty of Applied Medical Sciences, The Hashemite University, P.O. Box 330127, Zarqa 13133, Jordan; (A.N.O.); (M.A.A.-H.)
| | - Walhan Alshaer
- Cell Therapy Center (CTC), The University of Jordan, Amman 11942, Jordan;
| | - Hanan Hasan
- Department of Pathology, Microbiology and Forensic Medicine, School of Medicine, The University of Jordan, Amman 11942, Jordan;
| | - Khaled A. Albakri
- Faculty of Medicine, The Hashemite University, P.O. Box 330127, Zarqa 13133, Jordan;
| | - Enas Alkhafaji
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, The University of Jordan, Amman 11942, Jordan;
| | - Nada N. Issa
- Department of Medical Laboratory Sciences, Faculty of Applied Medical Sciences, The Hashemite University, P.O. Box 330127, Zarqa 13133, Jordan;
| | - Murad A. Al-Holy
- Department of Clinical Nutrition and Dietetics, Faculty of Applied Medical Sciences, The Hashemite University, P.O. Box 330127, Zarqa 13133, Jordan; (A.N.O.); (M.A.A.-H.)
| | - Salim M. Abderrahman
- Department of Biology and Biotechnology, Faculty of Sciences, The Hashemite University, P.O. Box 330127, Zarqa 13133, Jordan;
| | - Atiyeh M. Abdallah
- Department of Biomedical Sciences, College of Health Sciences, QU Health, Qatar University, Doha 2713, Qatar;
| | - Rohimah Mohamud
- Department of Immunology, School of Medical Sciences, Universiti Sains Malaysia, Kubang Kerian, Kota Bharu 16150, Malaysia;
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Hsa-miR-181a-5p, hsa-miR-182-5p, and hsa-miR-26a-5p as potential biomarkers for BCR-ABL1 among adult chronic myeloid leukemia treated with tyrosine kinase inhibitors at the molecular response. BMC Cancer 2022; 22:332. [PMID: 35346116 PMCID: PMC8962036 DOI: 10.1186/s12885-022-09396-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Accepted: 03/09/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Tyrosine kinase inhibitors (TKIs) as first-line therapy for Chronic Myeloid Leukemia (CML) show a high success rate. However, a low number of patients with long-term treatment-free remission (TFR) were observed. Molecular relapse after imatinib discontinuation occurred at 50% at 24 months, with 80% occurrence within the first 6 months. One of the reasons for relapse is untimely TKIs discontinuation caused by large errors from estimates at very low-level or undetectable disease, thus warranting new biomarkers for CML. METHODS Next Generation Sequencing (NGS) was used to identify microRNAs (miRNAs) at the molecular response in CML adult patients receiving TKIs treatment. A total of 86 samples were collected, 30 from CML patients responsive and 28 from non-responsive to imatinib therapy, and 28 from blood donors. NGS was conducted whereby 18 miRNAs were selected and validated by real-time RT-qPCR in triplicate. RESULTS Hsa-miR-181a-5p was expressed significantly (p-value< 0.05) with 2.14 and 2.33-fold down-regulation in both patient groups, respectively meanwhile hsa-miR-182-5p and hsa-miR-26a-5p were significant only in the non-responsive group with 2.08 and 2.39 fold up-regulation. The down-regulation was consistent with decreased amounts of BCR-ABL1 in patients taking TKIs regardless of molecular responses. The up-regulation was consistent with the substantial presence of BCR-ABL1 in CML patients treated with TKIs at the molecular response. CONCLUSIONS Therefore, these miRNAs have potential as new therapeutic biomarkers for BCR-ABL1 status in adult CML patients treated with TKIs at molecular responses. These could improve current approaches and require further analysis to look for targets of these miRNAs in CML.
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Motshwari DD, George C, Matshazi DM, Weale CJ, Davids SFG, Zemlin AE, Erasmus RT, Kengne AP, Matsha TE. Expression of whole blood miR-126-3p, -30a-5p, -1299, -182-5p and -30e-3p in chronic kidney disease in a South African community-based sample. Sci Rep 2022; 12:4107. [PMID: 35260775 PMCID: PMC8904505 DOI: 10.1038/s41598-022-08175-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Accepted: 02/04/2022] [Indexed: 12/30/2022] Open
Abstract
The burden of chronic kidney disease (CKD) in Africa remains poorly characterized, due partly to the lack of appropriate diagnostic strategies. Although in recent years the diagnostic and prognostic utility of microRNAs (miRNAs) have gained prominence in the context of CKD, its value has not been evaluated in African populations. We investigated the expression of whole blood miRNAs (miR-126-3p, -30a-5p, -1299, -182-5p and -30e-3p) in a total sample of 1449 comprising of 13.3% individuals with CKD (stage 1-5) and 26.4% male participants, as well as the association of these miRNAs with prevalent CKD, in a community-based sample of South African adults. We used Reverse Transcription Quantitative Real-Time PCR (RT-qPCR) to analyze miRNA expression. There was an increased expression in whole blood miR-126-3p, -30a-5p, -1299 and -182-5p in individuals with CKD, compared to those without (all p ≤ 0.036), whereas miR-30e-3p showed no significant difference between the groups (p = 0.482). Only miR-126-3p, -182-5p and -30e-3p were independently associated with increased risk of CKD (all p ≤ 0.022). This study showed for the first time that there is a dysregulation of whole blood miR-126-3p, -30a-5p, -1299 and -182-5p in South Africans of mixed-ancestry with CKD. More research is needed to ascertain their role in CKD risk screening in African populations.
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Affiliation(s)
- Dipuo D Motshwari
- SAMRC/CPUT/Cardiometabolic Health Research Unit, Department of Biomedical Sciences, Faculty of Health and Wellness Science, Cape Peninsula University of Technology, Cape Town, South Africa
| | - Cindy George
- Non-Communicable Disease Research Unit, South African Medical Research Council, Parow, Francie van Zijl Drive, Parow Valley, Cape Town, South Africa.
| | - Don M Matshazi
- SAMRC/CPUT/Cardiometabolic Health Research Unit, Department of Biomedical Sciences, Faculty of Health and Wellness Science, Cape Peninsula University of Technology, Cape Town, South Africa
| | - Cecil J Weale
- SAMRC/CPUT/Cardiometabolic Health Research Unit, Department of Biomedical Sciences, Faculty of Health and Wellness Science, Cape Peninsula University of Technology, Cape Town, South Africa
| | - Saarah F G Davids
- SAMRC/CPUT/Cardiometabolic Health Research Unit, Department of Biomedical Sciences, Faculty of Health and Wellness Science, Cape Peninsula University of Technology, Cape Town, South Africa
| | - Annalise E Zemlin
- Division of Chemical Pathology, Faculty of Medicine and Health Sciences, National Health Laboratory Service (NHLS) and University of Stellenbosch, Cape Town, South Africa
| | - Rajiv T Erasmus
- SAMRC/CPUT/Cardiometabolic Health Research Unit, Department of Biomedical Sciences, Faculty of Health and Wellness Science, Cape Peninsula University of Technology, Cape Town, South Africa
- Division of Chemical Pathology, Faculty of Medicine and Health Sciences, National Health Laboratory Service (NHLS) and University of Stellenbosch, Cape Town, South Africa
| | - Andre P Kengne
- Non-Communicable Disease Research Unit, South African Medical Research Council, Parow, Francie van Zijl Drive, Parow Valley, Cape Town, South Africa
- Department of Medicine, University of Cape Town, Cape Town, South Africa
| | - Tandi E Matsha
- SAMRC/CPUT/Cardiometabolic Health Research Unit, Department of Biomedical Sciences, Faculty of Health and Wellness Science, Cape Peninsula University of Technology, Cape Town, South Africa
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MiR-182-5p inhibits the tumorigenesis of clear cell renal cell carcinoma by repressing UBE2T. Hum Cell 2022; 35:542-556. [PMID: 35129808 DOI: 10.1007/s13577-021-00661-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Accepted: 12/11/2021] [Indexed: 12/12/2022]
Abstract
Ubiquitin-conjugating enzyme E2T (UBE2T), a member of the E2 family, has been reported to be overexpressed in certain tumor types and to have an important role in the Fanconi anemia pathway. However, the role of UBE2T in clear cell renal cell carcinoma (ccRCC) has not been clarified. MicroRNAs (miRNAs) participate in tumorigenesis by binding to genes and proteins that regulate cell proliferation or cell apoptosis. The aim of this study was to determine the role of UBE2T and the relationship between miR-182-5p and UBE2T in ccRCC. In the present study, UBE2T expression levels in ccRCC tissues and cells were assessed using real-time quantitative PCR (RT-qPCR) and western blotting. UBE2T protein expression was assessed in a total of 93 ccRCC patients from Peking University First Hospital (PKU) via immunohistochemistry (IHC). The effects of UBE2T knockdown on ccRCC cells were assessed with MTS assays, wound healing assays, Transwell invasion assays and flow cytometry. The effects of in vivo treatment were evaluated through xenograft experiments. The relationship between miR-182-5p and UBE2T was verified with a dual-luciferase reporter gene assay. We found that UBE2T was highly expressed in ccRCC cells and tissues. High UBE2T expression was positively correlated with advanced pathological stage, histological grade, maximum tumor diameter and distant metastasis. Multivariate analysis revealed that UBE2T expression was an independent risk factor for overall survival (OS) and recurrence-free survival (RFS) in patients with ccRCC. Knockdown of UBE2T significantly suppressed RCC cell proliferation, migration and invasion. Flow cytometry analysis showed that UBE2T knockdown promoted RCC cell cycle arrest at G2/M phase and increased cell apoptosis. The xenograft model confirmed that suppression of UBE2T significantly delayed tumor formation and growth in vivo. In addition, miR-182-5p inhibited UBE2T protein expression by targeting UBE2T mRNA and then inhibited the proliferation, migration and invasion of ccRCC cell. Our research reveals that UBE2T likely plays a critical role in ccRCC progression and may be a potential therapeutic target for ccRCC.
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Chen X, Li R, Li X, Peng X, Zhang C, Liu K, Huang G, Lai Y. Identification of a four-microRNA panel in serum for screening renal cell carcinoma. Pathol Res Pract 2021; 227:153625. [PMID: 34628264 DOI: 10.1016/j.prp.2021.153625] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/19/2021] [Revised: 09/17/2021] [Accepted: 09/18/2021] [Indexed: 02/05/2023]
Abstract
BACKGROUND The aim of the study was to identify serum microRNAs (miRNAs) as potential biomarkers for screening renal cell carcinoma. METHODS The study was divided into three stages, including screening stage, training stage, and validation stage. In the screening stage, we examined the expression of 30 serum miRNAs from healthy controls (HCs) and renal cell carcinoma (RCC) patients. We further studied the dysregulated miRNAs in training (30 RCC and 26 HCs) and validation (73 RCC and 80 HCs) stages. We estimated the diagnostic value of miRNAs by receiver operating characteristic (ROC) curves and the area under the ROC curve (AUC). Finally, bioinformatics analysis were performed towards target genes of differentially expressed miRNAs. RESULTS Six serum miRNAs (miR-17-5p, miR-20a-5p, miR-21-5p, miR-150-5p, miR-145-5p and miR-146a-5p) in RCC patients were obviously differentially expressed compared to those in HCs in training stage and validation stage. To increase diagnostic value, we combined these six serum miRNAs and made a four-microRNA (miR-21-5p, miR-150-5p, miR-145-5p and miR-146a-5p) panel, and AUC of the panel was 0.938 (95% CI: 0.889-0.971; sensitivity=90.79%, specificity=93.75%). The genes targeted by these miRNAs were suggested that they may be involved in the process of cancers by the bioinformatics analysis. CONCLUSIONS Our study was performing a four-microRNA panel in serum for screening enal cell carcinoma. The four-miRNA panel (miR-21-5p, miR-150-5p, miR-145-5p and miR-146a-5p) may be perform as a biomarker without invasiveness for RCC screening.
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Affiliation(s)
- Xuan Chen
- Shantou University Medical College, Shantou, Guangdong 515041, China; Department of Urology, Guangdong and Shenzhen Key Laboratory of Male Reproductive Medicine and Genetics, Peking University Shenzhen Hospital, Shenzhen, Guangdong 518036, PR China
| | - Rongkang Li
- Department of Urology, Guangdong and Shenzhen Key Laboratory of Male Reproductive Medicine and Genetics, Peking University Shenzhen Hospital, Shenzhen, Guangdong 518036, PR China; Anhui Medical University, Hefei, Anhui 230032, China
| | - Xinji Li
- Shantou University Medical College, Shantou, Guangdong 515041, China; Department of Urology, Guangdong and Shenzhen Key Laboratory of Male Reproductive Medicine and Genetics, Peking University Shenzhen Hospital, Shenzhen, Guangdong 518036, PR China
| | - Xiqi Peng
- Shantou University Medical College, Shantou, Guangdong 515041, China; Department of Urology, Guangdong and Shenzhen Key Laboratory of Male Reproductive Medicine and Genetics, Peking University Shenzhen Hospital, Shenzhen, Guangdong 518036, PR China
| | - Chunduo Zhang
- Department of Urology, Guangdong and Shenzhen Key Laboratory of Male Reproductive Medicine and Genetics, Peking University Shenzhen Hospital, Shenzhen, Guangdong 518036, PR China
| | - Kaihao Liu
- Department of Urology, Guangdong and Shenzhen Key Laboratory of Male Reproductive Medicine and Genetics, Peking University Shenzhen Hospital, Shenzhen, Guangdong 518036, PR China; Anhui Medical University, Hefei, Anhui 230032, China
| | - Guocheng Huang
- Shantou University Medical College, Shantou, Guangdong 515041, China; Department of Urology, Guangdong and Shenzhen Key Laboratory of Male Reproductive Medicine and Genetics, Peking University Shenzhen Hospital, Shenzhen, Guangdong 518036, PR China
| | - Yongqing Lai
- Department of Urology, Guangdong and Shenzhen Key Laboratory of Male Reproductive Medicine and Genetics, Peking University Shenzhen Hospital, Shenzhen, Guangdong 518036, PR China.
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Zhen H, Du P, Yi Q, Tang X, Wang T. LINC00958 promotes bladder cancer carcinogenesis by targeting miR-490-3p and AURKA. BMC Cancer 2021; 21:1145. [PMID: 34702201 PMCID: PMC8549181 DOI: 10.1186/s12885-021-08882-6] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2021] [Accepted: 09/19/2021] [Indexed: 02/01/2023] Open
Abstract
Background Bladder cancer is a prevalent malignancy of the urinary system, in which long non-coding RNAs (lncRNAs) are highly associated. We aimed to elucidate the role of LINC00958 in bladder cancer. Methods LINC00958 expression levels were measured using qRT-PCR. The interaction of LINC00958-miR-490-3p-AURKA was analyzed by luciferase, RIP, and RNA pull-down assays. The biological roles of LINC00958, miR-490-3p, and AURKA in bladder cancer cells were analyzed using CCK8, BrdU, and transwell assays. Results Increased expression of LINC00958 and AURKA was observed in bladder cancer tissues and cell lines. Decreased LINC00958 expression repressed bladder cancer progression and downregulation of miR-490-3p accelerated bladder cancer cell progression. Moreover, LINC00958 sponges miR-490-3p to upregulate AURKA expression, thereby promoting carcinogenesis in bladder cancer cells. Conclusions Our study revealed that LINC00958 facilitated cell proliferation and invasion, and suppressed cell apoptosis by sponging miR-490-3p and upregulating AURKA, thus inspiring a new treatment method for bladder cancer. Supplementary Information The online version contains supplementary material available at 10.1186/s12885-021-08882-6.
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Affiliation(s)
- Hongtao Zhen
- Department of Urology Ward 1, Zhengzhou Central Hospital Affiliated to Zhengzhou University, No. 195 Tongbai Road, Zhongyuan District, Zhengzhou, 450007, Henan, China.
| | - Peng Du
- Department of Urology, Peking University Cancer Hospital, Beijing, 100142, China
| | - Qiang Yi
- Department of Urology Ward 1, Zhengzhou Central Hospital Affiliated to Zhengzhou University, No. 195 Tongbai Road, Zhongyuan District, Zhengzhou, 450007, Henan, China
| | - Xiaolong Tang
- Department of Urology Ward 1, Zhengzhou Central Hospital Affiliated to Zhengzhou University, No. 195 Tongbai Road, Zhongyuan District, Zhengzhou, 450007, Henan, China
| | - Tongqing Wang
- Department of Urology Ward 1, Zhengzhou Central Hospital Affiliated to Zhengzhou University, No. 195 Tongbai Road, Zhongyuan District, Zhengzhou, 450007, Henan, China
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LncRNAs in the Regulation of Genes and Signaling Pathways through miRNA-Mediated and Other Mechanisms in Clear Cell Renal Cell Carcinoma. Int J Mol Sci 2021; 22:ijms222011193. [PMID: 34681854 PMCID: PMC8539140 DOI: 10.3390/ijms222011193] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Revised: 10/05/2021] [Accepted: 10/08/2021] [Indexed: 12/13/2022] Open
Abstract
The fundamental novelty in the pathogenesis of renal cell carcinoma (RCC) was discovered as a result of the recent identification of the role of long non-coding RNAs (lncRNAs). Here, we discuss several mechanisms for the dysregulation of the expression of protein-coding genes initiated by lncRNAs in the most common and aggressive type of kidney cancer-clear cell RCC (ccRCC). A model of competitive endogenous RNA (ceRNA) is considered, in which lncRNA acts on genes through the lncRNA/miRNA/mRNA axis. For the most studied oncogenic lncRNAs, such as HOTAIR, MALAT1, and TUG1, several regulatory axes were identified in ccRCC, demonstrating a number of sites for various miRNAs. Interestingly, the LINC00973/miR-7109/Siglec-15 axis represents a novel agent that can suppress the immune response in patients with ccRCC, serving as a valuable target in addition to the PD1/PD-L1 pathway. Other mechanisms of action of lncRNAs in ccRCC, involving direct binding with proteins, mRNAs, and genes/DNA, are also considered. Our review briefly highlights methods by which various mechanisms of action of lncRNAs were verified. We pay special attention to protein targets and signaling pathways with which lncRNAs are associated in ccRCC. Thus, these new data on the different mechanisms of lncRNA functioning provide a novel basis for understanding the pathogenesis of ccRCC and the identification of new prognostic markers and targets for therapy.
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17
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Identification of Prognostic Metabolism-Related Genes in Clear Cell Renal Cell Carcinoma. JOURNAL OF ONCOLOGY 2021; 2021:2042114. [PMID: 34616452 PMCID: PMC8490028 DOI: 10.1155/2021/2042114] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Accepted: 09/13/2021] [Indexed: 01/05/2023]
Abstract
Background Clear cell renal cell carcinoma (ccRCC) is a cancer with abnormal metabolism. The purpose of this study was to investigate the effect of metabolism-related genes on the prognosis of ccRCC patients. Methods The data of ccRCC patients were downloaded from the TCGA and the GEO databases and clustered using the nonnegative matrix factorization method. The limma software package was used to analyze differences in gene expression. A random forest model was used to screen for important genes. A novel Riskscore model was established using multivariate regression. The model was evaluated based on the metabolic pathway, immune infiltration, immune checkpoint, and clinical characteristics. Results According to metabolism-related genes, kidney clear cell carcinoma (KIRC) datasets downloaded from TCGA were clustered into two groups and showed significant differences in prognosis and immune infiltration. There were 667 differentially expressed genes between the two clusters, of which 408 were screened by univariate analysis. Finally, 12 differentially expressed genes (MDK, SLC1A1, SGCB, C4orf3, MALAT1, PILRB, IGHG1, FZD1, IFITM1, MUC20, KRT80, and SALL1) were filtered out using the random forest model. The model of Riskscore was obtained by multiplying the expression levels of these 12 genes with the corresponding coefficients of the multivariate regression. We found that the Riskscore correlated with the expression of these 12 genes; the high Riskscore matched the low survival rate verified in the verification set. The analysis found that the Riskscore model was associated with most of the metabolic processes, immune infiltration of cells such as plasma cells, immune checkpoints such as PD-1, and clinical characteristics such as M stage. Conclusion We established a new Riskscore model for the prognosis of ccRCC based on metabolism. The genes in the model provided several novel targets for the study of ccRCC.
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Chao X, Wang P, Ma X, Li Z, Xia Y, Guo Y, Ge L, Tian L, Zheng H, Du Y, Li J, Zuo Z, Xie L, Guo X. Comprehensive analysis of lncRNAs as biomarkers for diagnosis, prognosis, and treatment response in clear cell renal cell carcinoma. MOLECULAR THERAPY-ONCOLYTICS 2021; 22:209-218. [PMID: 34514100 PMCID: PMC8424129 DOI: 10.1016/j.omto.2021.08.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Accepted: 08/12/2021] [Indexed: 10/27/2022]
Abstract
Clear cell renal cell carcinoma (ccRCC) is the most common histological type of renal carcinoma and has a high recurrence rate and poor outcome. Accurate patient risk stratification based on genetic markers can help to identify the high-risk patient for early and further treatments and would promote patient survival. Long non-coding RNAs (lncRNAs) have attracted widespread attention as biomarkers for early diagnosis, treatment, and prognosis because of their high specificity and sensitivity. Here, we performed a systematic search in NCBI PubMed and found 44 lncRNAs as oncogenes, 18 lncRNAs as tumor suppressors, 199 lncRNAs as diagnostic biomarkers, 62 lncRNAs as prognostic biomarkers, and 3 lncRNAs as predictive biomarkers for ccRCC. We also comprehensively discuss the biological functions and molecular regulatory mechanisms of lncRNAs in ccRCC. Overall, the present study is a systemic analysis to assess the expression and clinical value of lncRNAs in ccRCC, and lncRNAs hold promise to be diagnostic, prognostic, and predictive biomarkers.
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Affiliation(s)
- Xiaoyu Chao
- Department of Preventive Medicine, Institute of Biomedical Informatics, Bioinformatics Center, Henan Provincial Engineering Center for Tumor Molecular Medicine, School of Basic Medical Sciences, Henan University, Kaifeng 475004, China
| | - Pei Wang
- Department of Preventive Medicine, Institute of Biomedical Informatics, Bioinformatics Center, Henan Provincial Engineering Center for Tumor Molecular Medicine, School of Basic Medical Sciences, Henan University, Kaifeng 475004, China
| | - Xiaoyu Ma
- Department of Preventive Medicine, Institute of Biomedical Informatics, Bioinformatics Center, Henan Provincial Engineering Center for Tumor Molecular Medicine, School of Basic Medical Sciences, Henan University, Kaifeng 475004, China
| | - Zhenfen Li
- Kaifeng Tumor Hospital, Kaifeng 475004, China
| | - Yubing Xia
- Kaifeng Tumor Hospital, Kaifeng 475004, China
| | - Ying Guo
- Department of Preventive Medicine, Institute of Biomedical Informatics, Bioinformatics Center, Henan Provincial Engineering Center for Tumor Molecular Medicine, School of Basic Medical Sciences, Henan University, Kaifeng 475004, China
| | - Linna Ge
- Department of Preventive Medicine, Institute of Biomedical Informatics, Bioinformatics Center, Henan Provincial Engineering Center for Tumor Molecular Medicine, School of Basic Medical Sciences, Henan University, Kaifeng 475004, China
| | - Linzhu Tian
- Department of Preventive Medicine, Institute of Biomedical Informatics, Bioinformatics Center, Henan Provincial Engineering Center for Tumor Molecular Medicine, School of Basic Medical Sciences, Henan University, Kaifeng 475004, China
| | - Hong Zheng
- Department of Preventive Medicine, Institute of Biomedical Informatics, Bioinformatics Center, Henan Provincial Engineering Center for Tumor Molecular Medicine, School of Basic Medical Sciences, Henan University, Kaifeng 475004, China
| | - Yaowu Du
- Department of Preventive Medicine, Institute of Biomedical Informatics, Bioinformatics Center, Henan Provincial Engineering Center for Tumor Molecular Medicine, School of Basic Medical Sciences, Henan University, Kaifeng 475004, China
| | - Jitian Li
- Laboratory of Molecular Biology, Henan Luoyang Orthopedic Hospital (Henan Provincial Orthopedic Hospital), Zhengzhou 450000, China
| | - Zhanjie Zuo
- Thoracic Cancer Treatment Center, Armed police Beijing Corps Hospital, Beijing 100027, China
| | - Longxiang Xie
- Department of Preventive Medicine, Institute of Biomedical Informatics, Bioinformatics Center, Henan Provincial Engineering Center for Tumor Molecular Medicine, School of Basic Medical Sciences, Henan University, Kaifeng 475004, China
| | - Xiangqian Guo
- Department of Preventive Medicine, Institute of Biomedical Informatics, Bioinformatics Center, Henan Provincial Engineering Center for Tumor Molecular Medicine, School of Basic Medical Sciences, Henan University, Kaifeng 475004, China
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Samir A, Tawab RA, Eltayebi HM. Long non-coding RNAs XIST and MALAT1 hijack the PD-L1 regulatory signaling pathway in breast cancer subtypes. Oncol Lett 2021; 22:593. [PMID: 34149904 DOI: 10.3892/ol.2021.12854] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2020] [Accepted: 01/14/2021] [Indexed: 02/06/2023] Open
Abstract
Long non-coding RNAs (lncRNAs) have attracted widespread attention as potential biological and pathological regulators. lncRNAs are involved in several biological processes in cancer. Triple negative breast cancer (TNBC) is characterized by strong heterogeneity and aggressiveness. At present, the implication of microRNAs (miRs) and lncRNAs in immunotherapy has been poorly studied. Nevertheless, the blockade of immune checkpoints, particularly that of the programmed cell-death protein-1/programmed cell-death ligand-1 (PD-L1) axis, is considered as a principle approach in breast cancer (BC) therapy. The present study aimed to investigate the interaction between immune-modulatory upstream signaling pathways of the PD-L1 transcript that could enhance personalized targeted therapy. MDA-MB-231 cells were transfected with miR-182-5p mimics followed by RNA extraction and cDNA synthesis using a reverse transcription kit, and the expression levels of the target genes were assessed by reverse transcription-quantitative PCR. Furthermore, the expression levels of target genes were measured in tissues derived from 41 patients with BC, including patients with luminal BC and TNBC, as well as their adjacent lymph nodes. The results revealed that the expression levels of miR-182-5p, PD-L1 and metastasis-associated lung adenocarcinoma transcript 1 (MALAT1) were upregulated in MDA-MB-231 cells and BC tissues. However, X-inactive specific transcript (XIST) expression was downregulated in cancer tissues and TNBC cells. Following co-transfection of cells with small interfering RNAs specific for each target gene and miR-182-5p antagomirs, the effect of miR-182-5p was abolished in the presence of lncRNAs. Therefore, the results of the present study indicated that although miR-182-5p exhibited an oncogenic effect, XIST exerted a dominant effect on the regulation of the PD-L1 signaling pathway via the inhibition of the oncogenic function of MALAT1.
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Affiliation(s)
- Amany Samir
- Molecular Pharmacology Research Group, Department of Pharmacology and Toxicology, German University in Cairo, Cairo 11835, Egypt
| | - Reda Abdel Tawab
- Department of General Surgery, Ain Shams University, Cairo 11772, Egypt
| | - Hend M Eltayebi
- Molecular Pharmacology Research Group, Department of Pharmacology and Toxicology, German University in Cairo, Cairo 11835, Egypt
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Exosomes derived from mesenchymal stem cells curbs the progression of clear cell renal cell carcinoma through T-cell immune response. Cytotechnology 2021; 73:593-604. [PMID: 34349349 DOI: 10.1007/s10616-021-00480-5] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2021] [Accepted: 06/01/2021] [Indexed: 12/12/2022] Open
Abstract
Exosomes derived from mesenchymal stem cells (MSC-Exo) are effective in modulating immunity. However, the role of MSC-Exo in clear cell renal cell carcinoma (ccRCC) is unclear. Our study was performed to identify if exosomal microRNA (miRNA) can be used as potential noninvasive biomarkers for ccRCC therapy. An orthotopic ccRCC mouse model was established, followed by MSC-Exo injection (1 mL, 20 μg/mL). The metastases of tumors were observed using HE staining, while number of dendritic cells, natural killing (NK) T cells and CD8+ T cells was measured using flow cytometry. It was observed that MSC-Exo treatment significantly inhibited metastasis and growth of tumors, and improved immune response in vivo. As for in vitro assay, naive T cells were treated with MSC-Exo, followed by detection of T cell proliferation using EdU staining and CFSE assay. Results also showed that MSC-Exo facilitated sensitivity of ccRCC cells to NK T cells. Our experimental data further showed that miR-182 could be delivered by MSC-Exo in ccRCC, which targeted vascular endothelial growth factor A (VEGFA), as dual-luciferase reporter assays validated. In conclusion, miR-182 contained in MSC-Exo promoted immune response of T cells by suppressing VEGFA expression, thus alleviating ccRCC development.
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21
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Yang L, Zou X, Zou J, Zhang G. A Review of Recent Research on the Role of MicroRNAs in Renal Cancer. Med Sci Monit 2021; 27:e930639. [PMID: 33963171 PMCID: PMC8114846 DOI: 10.12659/msm.930639] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Renal cell carcinoma (RCC) is a most common type of urologic neoplasms; it accounts for 3% of malignant tumors, with high rates of relapse and mortality. The most common types of renal cancer are clear cell carcinoma (ccRCC), papillary renal cell carcinoma (pRCC), and chromophobe renal carcinoma (chRCC), which account for 90%, 6–15%, and 2–5%, respectively, of all renal malignancies. Although surgical resection, chemotherapy, and radiotherapy are the most common treatment method for those diseases, their effects remain dissatisfactory. Furthermore, recent research shows that the treatment efficacy of checkpoint inhibitors in advanced RCC patients is widely variable. Hence, patients urgently need a new molecular biomarker for early diagnosis and evaluating the prognosis of RCC. MicroRNAs (miRNAs) belong to a family of short, non-coding RNAs that are highly conserved, have long half-life evolution, and post-transcriptionally regulate gene expression; they have been predicted to play crucial roles in tumor metastasis, invasion, angiogenesis, proliferation, apoptosis, epithelial-mesenchymal transition, differentiation, metabolism, cancer occurrence, and treatment resistance. Although some previous papers demonstrated that miRNAs play vital roles in renal cancer, such as pathogenesis, diagnosis, and prognosis, the roles of miRNAs in kidney cancer are still unclear. Therefore, we reviewed studies indexed in PubMed from 2017 to 2020, and found several studies suggesting that there are more than 82 miRNAs involved in renal cancers. The present review describes the current status of miRNAs in RCC and their roles in progression, diagnosis, therapy targeting, and prognosis of RCC.
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Affiliation(s)
- Longfei Yang
- First Clinical Medical College, Gannan Medical University, Ganzhou, Jiangxi, China (mainland)
| | - Xiaofeng Zou
- Department of Urology, First Affiliated Hospital of Gannan Medical University, Ganzhou, Jiangxi, China (mainland)
| | - Junrong Zou
- Institute of Urology, First Affiliated Hospital of Gannan Medical University, Ganzhou, Jiangxi, China (mainland)
| | - Guoxi Zhang
- Department of Urology, First Affiliated Hospital of Gannan Medical University, Ganzhou, Jiangxi, China (mainland)
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22
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Meng X, Wang ZF, Lou QY, Rankine AN, Zheng WX, Zhang ZH, Zhang L, Gu H. Long non-coding RNAs in head and neck squamous cell carcinoma: Diagnostic biomarkers, targeted therapies, and prognostic roles. Eur J Pharmacol 2021; 902:174114. [PMID: 33901464 DOI: 10.1016/j.ejphar.2021.174114] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Revised: 04/09/2021] [Accepted: 04/19/2021] [Indexed: 12/24/2022]
Abstract
At present, emerging evidence shows that non-coding RNAs (ncRNAs) play crucial roles for development of multiple tumors. Amongst these ncRNAs, long non-coding RNAs (lncRNAs) play prominent roles in physiological and pathological processes. LncRNAs are RNA transcripts larger than 200 nucleotides and have been shown to serve important regulatory roles in different types of cancer via interactions with DNA, RNA and proteins. Head and neck squamous cell carcinoma (HNSCC) is one of the most malignant tumors with low survival rates in advanced stages. Recently, lncRNAs have been demonstrated to be involved in a wide range of biological processes, including proliferation, metastasis, and prognosis of HNSCC. Therefore, this review describes molecular mechanisms of up- or down-regulation of lncRNAs and expounds their functions in pathology and clinical practices in HNSCC. It also highlights their potential clinical applications as biomarkers for the diagnosis, prognosis, and treatment of HNSCC. However, studies on lncRNAs are still not comprehensive, and more investigations are needed in the future.
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Affiliation(s)
- Xiang Meng
- College & Hospital of Stomatology, Anhui Medical University, Key Lab. of Oral Diseases Research of Anhui Province, Hefei, 230032, China.
| | - Zi-Fei Wang
- School of Stomatology, Anhui Medical University, Hefei, 230032, China.
| | - Qiu-Yue Lou
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, Hefei, 230032, China.
| | - Abigail N Rankine
- Clinical Medicine in Chinese (MBBS), Anhui Medical University, Hefei, 230032, China.
| | - Wan-Xin Zheng
- School of Stomatology, Anhui Medical University, Hefei, 230032, China.
| | - Zi-Hao Zhang
- School of Stomatology, Anhui Medical University, Hefei, 230032, China.
| | - Lei Zhang
- College & Hospital of Stomatology, Anhui Medical University, Key Lab. of Oral Diseases Research of Anhui Province, Hefei, 230032, China; Periodontal Department, Anhui Stomatology Hospital Affiliated to Anhui Medical University, Hefei, 230032, China.
| | - Hao Gu
- Department of Immunology, School of Basic Medical Sciences, Anhui Medical University, Hefei, 230032, China.
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Kulkarni P, Dasgupta P, Hashimoto Y, Shiina M, Shahryari V, Tabatabai ZL, Yamamura S, Tanaka Y, Saini S, Dahiya R, Majid S. A lncRNA TCL6-miR-155 Interaction Regulates the Src-Akt-EMT Network to Mediate Kidney Cancer Progression and Metastasis. Cancer Res 2021; 81:1500-1512. [PMID: 33500248 DOI: 10.1158/0008-5472.can-20-0832] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2020] [Revised: 07/10/2020] [Accepted: 01/20/2021] [Indexed: 11/16/2022]
Abstract
Metastasis is the leading cause of mortality from kidney cancer, and understanding the underlying mechanism of this event will provide better strategies for its management. Here we investigated the biological, functional, and clinical significance of lncTCL6 and its interacting miR-155 in clear cell renal cell carcinoma (ccRCC). We employed a comprehensive approach to investigate the lncTCL6-miR-155-Src/Akt-mediated epithelial-to-mesenchymal transition (EMT) pathway as a novel regulatory mechanism in ccRCC progression. Expression analyses revealed that lncTCL6 is downregulated in ccRCC compared with normal tissues. Overexpression of lncTCL6 in ccRCC cell lines impaired their oncogenic functions, such as cell proliferation and migration/invasion, and induced cell-cycle arrest and apoptosis; conversely, depletion of lncTCL6 rescued these phenotypic effects. Furthermore, lncTCL6 directly interacted with miR-155. Unlike lncTCL6, miR-155 was overexpressed in ccRCC. Stable knockdown of miR-155 phenocopied the effects of lncTCL6 overexpression. Conversely, reconstitution of miR-155 and suppression of lncTCL6 in noncancerous renal cell HK2 induced tumorigenic characteristics. Patients with higher expression of lncTCL6 and lower expression of miR-155 had better survival probability. When overexpressed, lncTCL6 recruited STAU1 and mediated decay of Src mRNA, followed by a marked downregulation of an integrated network of Src target genes involved in migration, invasion, and EMT. However, the interaction between miR-155 and lncTCL6 attenuated the regulatory role of lncTCL6 on Src-mediated EMT. In conclusion, this study is the first report documenting the lncTCL6-miR155-Src/Akt/EMT network as a novel regulatory mechanism in aggressive ccRCC and a promising therapeutic target to inhibit renal cancer. SIGNIFICANCE: This study's investigation of noncoding RNA interactions in renal cell carcinoma identify miRNA-155-lncRNA TCL6-mediated regulation of the Src-Akt-EMT network as a novel mechanism of disease progression and metastasis.
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Affiliation(s)
- Priyanka Kulkarni
- Department of Urology, Veterans Affairs Medical Center, San Francisco and University of California San Francisco, San Francisco, California
| | - Pritha Dasgupta
- Department of Urology, Veterans Affairs Medical Center, San Francisco and University of California San Francisco, San Francisco, California
| | - Yutaka Hashimoto
- Department of Urology, Veterans Affairs Medical Center, San Francisco and University of California San Francisco, San Francisco, California
| | - Marisa Shiina
- Department of Urology, Veterans Affairs Medical Center, San Francisco and University of California San Francisco, San Francisco, California
| | - Varahram Shahryari
- Department of Urology, Veterans Affairs Medical Center, San Francisco and University of California San Francisco, San Francisco, California
| | - Z Laura Tabatabai
- Department of Urology, Veterans Affairs Medical Center, San Francisco and University of California San Francisco, San Francisco, California
| | - Soichiro Yamamura
- Department of Urology, Veterans Affairs Medical Center, San Francisco and University of California San Francisco, San Francisco, California
| | - Yuichiro Tanaka
- Department of Urology, Veterans Affairs Medical Center, San Francisco and University of California San Francisco, San Francisco, California
| | - Sharanjot Saini
- Medical College of Georgia, Augusta University, Augusta, Georgia
| | - Rajvir Dahiya
- Department of Urology, Veterans Affairs Medical Center, San Francisco and University of California San Francisco, San Francisco, California.
| | - Shahana Majid
- Department of Urology, Veterans Affairs Medical Center, San Francisco and University of California San Francisco, San Francisco, California.
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MicroRNA 452 regulates ASB8, NOL8, and CDR2 expression in colorectal cancer cells. Genes Genomics 2021; 43:33-41. [PMID: 33398662 DOI: 10.1007/s13258-020-01016-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Accepted: 10/29/2020] [Indexed: 02/07/2023]
Abstract
BACKGROUND MicroRNAs play important roles in the pathogenesis of human diseases by regulating target gene expression in specific cells or tissues. Previously, we identified microRNA 452 (MIR452), which was specifically up-regulated in early stage human colorectal cancer (CRC) tissue. OBJECTIVE The current study aims to identify and verify the target genes of MIR452 associated with CRC. METHODS A luciferase reporter system was used to confirm the effect of MIR452 on ASB8, NOL8, and CDR2 expression. The expression levels of MIR452 and the target genes were evaluated by quantitative RT-PCR (qRT-PCR) and western blotting. RESULTS We verified the association between MIR452 and three genes, ASB8, NOL8, and CDR2, and showed that their transcripts were down-regulated by MIR452. Up-regulated MIR452 also down-regulated ASB8, NOL8, and CDR2 mRNA and protein levels in CRC cells. CDR2 protein expression was decreased in CRC tissues compared to adjacent non-tumor tissues. CONCLUSIONS These results suggest that ASB8, NOL8, and CDR2 were target genes of MIR452 in CRC cells and that up-regulated MIR452 in CRC tissue regulated ASB8, NOL8, and CDR2 expression during colorectal carcinogenesis.
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Ghafouri-Fard S, Shirvani-Farsani Z, Branicki W, Taheri M. MicroRNA Signature in Renal Cell Carcinoma. Front Oncol 2020; 10:596359. [PMID: 33330087 PMCID: PMC7734191 DOI: 10.3389/fonc.2020.596359] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Accepted: 10/22/2020] [Indexed: 12/24/2022] Open
Abstract
Renal cell carcinoma (RCC) includes 2.2% of all diagnosed cancers and 1.8% of cancer-related mortalities. The available biomarkers or screening methods for RCC suffer from lack of sensitivity or high cost, necessitating identification of novel biomarkers that facilitate early diagnosis of this cancer especially in the susceptible individuals. MicroRNAs (miRNAs) have several advantageous properties that potentiate them as biomarkers for cancer detection. Expression profile of miRNAs has been assessed in biological samples from RCC patients. Circulatory or urinary levels of certain miRNAs have been proposed as markers for RCC diagnosis or follow-up. Moreover, expression profile of some miRNAs has been correlated with response to chemotherapy, immunotherapy or targeted therapeutic options such as sunitinib. In the current study, we summarize the results of studies that assessed the application of miRNAs as biomarkers, therapeutic targets or modulators of response to treatment modalities in RCC patients.
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Affiliation(s)
- Soudeh Ghafouri-Fard
- Urology and Nephrology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Zeinab Shirvani-Farsani
- Department of Cell and Molecular Biology, Faculty of Life Sciences and Technology, Shahid Beheshti University G.C., Tehran, Iran
| | - Wojciech Branicki
- Malopolska Centre of Biotechnology of the Jagiellonian University, Kraków, Poland
| | - Mohammad Taheri
- Urogenital Stem Cell Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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Bajaj R, Tripathi R, Sridhar TS, Korlimarla A, Choudhury KD, Suryavanshi M, Mehta A, Doval DC. Prognostic role of microRNA 182 and microRNA 18a in locally advanced triple negative breast cancer. PLoS One 2020; 15:e0242190. [PMID: 33175907 PMCID: PMC7657558 DOI: 10.1371/journal.pone.0242190] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2020] [Accepted: 10/28/2020] [Indexed: 01/22/2023] Open
Abstract
Background The study assessed the epigenetic regulation and the role of microRNA (miR) expression in locally advanced triple negative breast cancers (TNBC) and comparison with the clinico-pathological variables and survival. Methods Fifty patients of locally advanced TNBC during the period 2011–2013 were included. Expression level of test microRNA (miR-182 and miR-18a) was determined using Taqman quantitative Real time polymerase chain reaction (qRT-PCR) from formalin fixed paraffin embedded biopsy blocks. Clinical and demographic information and survival data was retrieved from the Hospital medical records. Results An improved clinical complete response (cCR) was observed in patients with age ≥ 45 years (80%), premenopausal status (70%), tumor size < 6 cms (80%), nodal status N0-N1 (95%) and grade II-III tumor (80%). A statistically significant correlation was observed on comparison of cCR with menopausal status (p-value 0.020), T category (p-value 0.018) and the clinical nodal status (p-value 0.003). pCR also correlated with clinical nodal status (p-value 0.008). Epigenetically, miR-18a under expression (< 8.84) was most commonly associated with tumor size < 6 cms (76.7%), clinical nodal status N0-N1 (90%), cCR (60%) and pCR (53.3%). A similar trend was observed with miR-182. Statistical significance was observed with T category (p-values 0.003 and 0.004), clinical nodal status (p-values 0.001 and 0.001), clinical response (p-values 0.002 and 0.002) and pathological response (p-values 0.007 and 0.006) with respect to miR-18a and miR-182, respectively. Also, the menopausal status significantly correlated with the miR-182 expression (p-value 0.009). miR-182 overexpression (≥ 6.32) was not observed in any of the postmenopausal patients. A univariate cox proportional hazard regression model also showed statistical interactions (p-values <0.004). Conclusion miR-182 and miR-18a overexpression correlates with worse clinical and pathological tumor characteristics in locally advanced TNBC and hence could be used to predict the outcomes and prognosis in these patients.
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Affiliation(s)
- Rajat Bajaj
- Department of Medical Oncology, International Oncology Services, Fortis Hospital, UP, India
| | - Rupal Tripathi
- Department of Research, Rajiv Gandhi Cancer Institute & Research Centre, Delhi, India
| | - T. S. Sridhar
- Department of Molecular Medicine, St John’s Research Institute, Karnataka, India
| | - Aruna Korlimarla
- Department of Molecular Medicine, St John’s Research Institute, Karnataka, India
| | | | - Moushumi Suryavanshi
- Department of Molecular Diagnostics and Cell Biology, Rajiv Gandhi Cancer Institute and Research Centre, New Delhi, India
| | - Anurag Mehta
- Department of Pathology, Rajiv Gandhi Cancer Institute & Research Centre, Delhi, India
| | - Dinesh Chandra Doval
- Department of Medical Oncology, Rajiv Gandhi Cancer Institute & Research Centre, Delhi, India
- * E-mail:
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Huang G, Li H, Wang J, Peng X, Liu K, Zhao L, Zhang C, Chen X, Lai Y, Ni L. Combination of tumor suppressor miR-20b-5p, miR-30a-5p, and miR-196a-5p as a serum diagnostic panel for renal cell carcinoma. Pathol Res Pract 2020; 216:153152. [PMID: 32823234 DOI: 10.1016/j.prp.2020.153152] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Revised: 07/26/2020] [Accepted: 07/28/2020] [Indexed: 02/05/2023]
Abstract
BACKGROUND Renal cell carcinoma (RCC) accounts for 3 % of cancer patients. Early detection influences the therapeutic strategy and significantly improves patients' survival rates. Stable existing circulating miRNAs could be a promising diagnostic biomarker. METHODS Previously our team demonstrated the anti-tumor effect of miR-20b-5p, miR-30a-5p and miR-196a-5p in RCC tissue and cell lines. Here, based on 110 RCC patients and 110 health control, we investigated serum expression of these three miRNAs in the testing set and the validation set separately by using quantitative real-time PCR. A three-miRNA panel with high diagnostic efficiency was constructed. Correlations between these miRNAs and clinical parameters were investigated. Additionally, the TCGA dataset and bioinformatic analysis are used for the functional exploration of these miRNAs. RESULTS Serum expression levels of miR-20b-5p, miR-30a-5p were significantly reduced in RCC patients, while miR-196a-5p expression level was up-regulated (p < 0.001). miR-20b-5p, miR-30a-5p and miR-196a-5p had moderate diagnostic ability for RCC (AUC = 0.807, 0.766 and 0.719 in the testing set, respectively). The AUC of the three-miRNA panel was 0.949 in the testing set and 0.938 in the validation set. Specifically, the serum expression level of miR-196a-5p was significantly down-regulated in RCC patients with higher Fuhrman grade (p = 0.051). TCGA dataset analysis showed that the three-miRNA panel probably participated in RCC by targeting ITGA4 and NRP2. CONCLUSION The three-miRNA panel could serve as a promising non-invasive biomarker for RCC detection.
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Affiliation(s)
- Guocheng Huang
- Guangdong and Shenzhen Key Laboratory of Male Reproductive Medicine and Genetics, Peking University Shenzhen Hospital, Shenzhen, Guangdong, 518036, China; Shantou University Medical College, Shantou, Guangdong, 515041, China
| | - Huijuan Li
- Department of Urology, Shandong Provincial Hospital, Jinan, Shandong, 250021, China
| | - Jingyao Wang
- Guangdong and Shenzhen Key Laboratory of Male Reproductive Medicine and Genetics, Peking University Shenzhen Hospital, Shenzhen, Guangdong, 518036, China
| | - Xiqi Peng
- Guangdong and Shenzhen Key Laboratory of Male Reproductive Medicine and Genetics, Peking University Shenzhen Hospital, Shenzhen, Guangdong, 518036, China; Shantou University Medical College, Shantou, Guangdong, 515041, China
| | - Kaihao Liu
- Guangdong and Shenzhen Key Laboratory of Male Reproductive Medicine and Genetics, Peking University Shenzhen Hospital, Shenzhen, Guangdong, 518036, China; Anhui Medical University, Hefei, Anhui, 230032, China
| | - Liwen Zhao
- Guangdong and Shenzhen Key Laboratory of Male Reproductive Medicine and Genetics, Peking University Shenzhen Hospital, Shenzhen, Guangdong, 518036, China; Anhui Medical University, Hefei, Anhui, 230032, China
| | - Chunduo Zhang
- Guangdong and Shenzhen Key Laboratory of Male Reproductive Medicine and Genetics, Peking University Shenzhen Hospital, Shenzhen, Guangdong, 518036, China
| | - Xuan Chen
- Guangdong and Shenzhen Key Laboratory of Male Reproductive Medicine and Genetics, Peking University Shenzhen Hospital, Shenzhen, Guangdong, 518036, China; Shantou University Medical College, Shantou, Guangdong, 515041, China
| | - Yongqing Lai
- Guangdong and Shenzhen Key Laboratory of Male Reproductive Medicine and Genetics, Peking University Shenzhen Hospital, Shenzhen, Guangdong, 518036, China; Shantou University Medical College, Shantou, Guangdong, 515041, China.
| | - Liangchao Ni
- Guangdong and Shenzhen Key Laboratory of Male Reproductive Medicine and Genetics, Peking University Shenzhen Hospital, Shenzhen, Guangdong, 518036, China; Shantou University Medical College, Shantou, Guangdong, 515041, China.
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Targeting MALAT1 induces DNA damage and sensitize non-small cell lung cancer cells to cisplatin by repressing BRCA1. Cancer Chemother Pharmacol 2020; 86:663-672. [PMID: 33030583 DOI: 10.1007/s00280-020-04152-7] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2020] [Accepted: 09/17/2020] [Indexed: 12/21/2022]
Abstract
PURPOSE Metastasis-associated lung adenocarcinoma transcript 1 (MALAT1) is a long non-coding RNA which has been identified to be involved in alternative non-homologous end joining (A-NHEJ) pathways by binding with PARP1 and LIG3 in myeloma cells. This study aims to explore the roles of MALAT1 in DNA repair processes in non-small cell lung cancer (NSCLC). METHODS The interactions between MALAT1 and proteins were identified by co-immunoprecipitation and RNA pulldown. The interactions between MALAT1 and microRNAs (miRNA) were predicted by bioinformatics tools and confirmed by luciferase assay and RNA pulldown. The DNA damages were quantified by comet assay. The cell viability was examined by MTT assay and the cell apoptosis was determined by flow cytometry. RESULTS MALAT1 is identified to be involved in A-NHEJ pathway in NSCLC cells. However, in LIG3-null cells where A-NHEJ pathway is inactivated, targeting MALAT1 still increases DNA damages, suggesting that MALAT1 participates in other DNA repair pathways. Subsequently, MALAT1 is identified to bind with miR-146a and miR-216b, which directly target the 3'UTR of BRCA1. MALAT1 is confirmed to functions as a competing endogenous RNA (ceRNA) absorbing miR-146a and miR-216b, upregulating BRCA1 expression and protecting Homologous Recombination (HR) pathway in NSCLC cells. Finally, overexpression MALAT1 protects NSCLC cells from the cytotoxic effect of cisplatin. While, targeting MALAT1 in NSCLC cells induces DNA damages by repressing HR pathway and sensitizes NSCLC cells to cisplatin which had the potential for NSCLC treatment. CONCLUSION MALAT1 is involved in HR pathway by protecting BRCA1 and targeting MALAT1 induces DNA damages in NSCLC.
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Huang G, Li X, Chen Z, Wang J, Zhang C, Chen X, Peng X, Liu K, Zhao L, Lai Y, Ni L. A Three-microRNA Panel in Serum: Serving as a Potential Diagnostic Biomarker for Renal Cell Carcinoma. Pathol Oncol Res 2020; 26:2425-2434. [PMID: 32556891 DOI: 10.1007/s12253-020-00842-y] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/22/2020] [Accepted: 06/10/2020] [Indexed: 02/05/2023]
Abstract
PURPOSE Renal cell carcinoma (RCC) accounts for about 120,000 death each year. Although surgery is a routine treatment, RCC could be fatal if not diagnosed at an early stage. This study aims to search for suitable serum biomarkers and construct a miRNA panel with high diagnostic sensitivity or specificity. METHODS Totally 146 RCC patients and 150 normal control were involved in this three-stage study. Serum expression levels of 30 miRNAs selected from literature were tested by reverse transcription quantitative PCR (RT-qPCR) in the screening stage, the testing stage, and the validation stage. The diagnostic efficiency of miRNAs was evaluated by receiver operating characteristic (ROC) curve and area under curve (AUC) analysis. A panel with the highest diagnostic efficiency was constructed by backward stepwise logistic regression analysis. Additionally, bioinformatics analysis was used to investigate potential biological functions and mechanisms of candidate miRNAs. RESULTS MiR-224-5p, miR-34b-3p, miR-129-2-3p and miR-182-5p with low to moderate diagnostic ability (AUC = 0.692, 0.778, 0.687 and 0.745, respectively) were selected as candidate miRNAs after the three-stage study. The final diagnostic panel was consisted by miR-224-5p, miR-34b-3p and miR-182-5p with AUC = 0.855. No significance has been found between these four miRNAs and tumor location, Fuhrman Grade and AJCC clinical stages of RCC. Bioinformatic analysis suggested that the three-miRNAs panel may participate in tumorigenesis of RCC by targeting CORO1C. CONCLUSIONS The three-miRNA panel in serum could serve as a non-invasive diagnostic biomarker of RCC.
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Affiliation(s)
- Guocheng Huang
- Guangdong and Shenzhen Key Laboratory of Male Reproductive Medicine and Genetics, Peking University Shenzhen Hospital, Guangdong, 518036, Shenzhen, People's Republic of China
- Shantou University Medical College, Shantou, Guangdong, 515041, China
| | - Xinji Li
- Guangdong and Shenzhen Key Laboratory of Male Reproductive Medicine and Genetics, Peking University Shenzhen Hospital, Guangdong, 518036, Shenzhen, People's Republic of China
- Shantou University Medical College, Shantou, Guangdong, 515041, China
| | - Zebo Chen
- Guangdong and Shenzhen Key Laboratory of Male Reproductive Medicine and Genetics, Peking University Shenzhen Hospital, Guangdong, 518036, Shenzhen, People's Republic of China
| | - Jingyao Wang
- Guangdong and Shenzhen Key Laboratory of Male Reproductive Medicine and Genetics, Peking University Shenzhen Hospital, Guangdong, 518036, Shenzhen, People's Republic of China
| | - Chunduo Zhang
- Guangdong and Shenzhen Key Laboratory of Male Reproductive Medicine and Genetics, Peking University Shenzhen Hospital, Guangdong, 518036, Shenzhen, People's Republic of China
| | - Xuan Chen
- Guangdong and Shenzhen Key Laboratory of Male Reproductive Medicine and Genetics, Peking University Shenzhen Hospital, Guangdong, 518036, Shenzhen, People's Republic of China
- Shantou University Medical College, Shantou, Guangdong, 515041, China
| | - Xiqi Peng
- Guangdong and Shenzhen Key Laboratory of Male Reproductive Medicine and Genetics, Peking University Shenzhen Hospital, Guangdong, 518036, Shenzhen, People's Republic of China
- Shantou University Medical College, Shantou, Guangdong, 515041, China
| | - Kaihao Liu
- Guangdong and Shenzhen Key Laboratory of Male Reproductive Medicine and Genetics, Peking University Shenzhen Hospital, Guangdong, 518036, Shenzhen, People's Republic of China
- Anhui Medical University, Hefei, Anhui, 230032, China
| | - Liwen Zhao
- Guangdong and Shenzhen Key Laboratory of Male Reproductive Medicine and Genetics, Peking University Shenzhen Hospital, Guangdong, 518036, Shenzhen, People's Republic of China
- Anhui Medical University, Hefei, Anhui, 230032, China
| | - Yongqing Lai
- Guangdong and Shenzhen Key Laboratory of Male Reproductive Medicine and Genetics, Peking University Shenzhen Hospital, Guangdong, 518036, Shenzhen, People's Republic of China.
- Shantou University Medical College, Shantou, Guangdong, 515041, China.
| | - Liangchao Ni
- Guangdong and Shenzhen Key Laboratory of Male Reproductive Medicine and Genetics, Peking University Shenzhen Hospital, Guangdong, 518036, Shenzhen, People's Republic of China.
- Shantou University Medical College, Shantou, Guangdong, 515041, China.
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Dasgupta P, Kulkarni P, Majid S, Hashimoto Y, Shiina M, Shahryari V, Bhat NS, Tabatabai L, Yamamura S, Saini S, Tanaka Y, Dahiya R. LncRNA CDKN2B-AS1/miR-141/cyclin D network regulates tumor progression and metastasis of renal cell carcinoma. Cell Death Dis 2020; 11:660. [PMID: 32814766 PMCID: PMC7438482 DOI: 10.1038/s41419-020-02877-0] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2020] [Revised: 07/02/2020] [Accepted: 07/06/2020] [Indexed: 11/09/2022]
Abstract
The molecular heterogeneity of renal cell carcinoma (RCC) complicates the therapeutic interventions for advanced metastatic disease and thus its management remains a significant challenge. This study investigates the role of the lncRNA CDKN2B-AS1 and miR-141-3p interactions in the progression and metastasis of kidney cancer. Human renal cancer cell lines (ACHN and Caki1), normal RPTEC cells, tissue cohorts, and a series of in vitro assays and in vivo mouse model were used for this study. An overexpression of CDKN2B-AS1 was observed in RCC compared to normal samples in TCGA and our in-house SFVAMC tissue cohorts. Reciprocally, we observed reduced expression of miR-141 in RCC compared to normal in the same cohorts. CDKN2B-AS1 shares regulatory miR-141 binding sites with CCND1 and CCND2 genes. Direct interactions of CDKN2B-AS1/miR-141/Cyclin D1-D2 were confirmed by RNA immunoprecipitation and luciferase reporter assays indicating that CDKN2B-AS1/miR-141/Cyclin D1-D2 acts as a ceRNA network in RCC. Functionally, attenuation of CDKN2B-AS1 and/or overexpression of miR-141 inhibited proliferation, clonogenicity, migration/invasion, induced apoptosis in vitro and suppressed tumor growth in xenograft mouse model. Further, overexpression of CDKN2B-AS1 is positively correlated with poor overall survival of RCC patients. Expression of miR-141 also robustly discriminated malignant from non-malignant tissues and its inhibition in normal RPTEC cells induced pro-cancerous characteristics. CDKN2B-AS1 attenuation or miR-141 overexpression decreased CCND1/CCND2 expression, resulting in reduced RAC1/pPXN that are involved in migration, invasion and epithelial-mesenchymal transition. This study, for the first time, deciphered the role of CDKN2B-AS1/miR-141/Cyclin D axis in RCC and highlights this network as a promising therapeutic target for the regulation of EMT driven metastasis in RCC.
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Affiliation(s)
- Pritha Dasgupta
- Department of Urology, Veterans Affairs Medical Center, San Francisco and University of California San Francisco, San Francisco, CA, USA
| | - Priyanka Kulkarni
- Department of Urology, Veterans Affairs Medical Center, San Francisco and University of California San Francisco, San Francisco, CA, USA
| | - Shahana Majid
- Department of Urology, Veterans Affairs Medical Center, San Francisco and University of California San Francisco, San Francisco, CA, USA
| | - Yutaka Hashimoto
- Department of Urology, Veterans Affairs Medical Center, San Francisco and University of California San Francisco, San Francisco, CA, USA
| | - Marisa Shiina
- Department of Urology, Veterans Affairs Medical Center, San Francisco and University of California San Francisco, San Francisco, CA, USA
| | - Varahram Shahryari
- Department of Urology, Veterans Affairs Medical Center, San Francisco and University of California San Francisco, San Francisco, CA, USA
| | - Nadeem S Bhat
- Department of Surgery, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Laura Tabatabai
- Department of Urology, Veterans Affairs Medical Center, San Francisco and University of California San Francisco, San Francisco, CA, USA
| | - Soichiro Yamamura
- Department of Urology, Veterans Affairs Medical Center, San Francisco and University of California San Francisco, San Francisco, CA, USA
| | - Sharanjot Saini
- Medical College of Georgia, Augusta University, Augusta, GA, USA
| | - Yuichiro Tanaka
- Department of Urology, Veterans Affairs Medical Center, San Francisco and University of California San Francisco, San Francisco, CA, USA
| | - Rajvir Dahiya
- Department of Urology, Veterans Affairs Medical Center, San Francisco and University of California San Francisco, San Francisco, CA, USA.
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Outeiro-Pinho G, Barros-Silva D, Correia MP, Henrique R, Jerónimo C. Renal Cell Tumors: Uncovering the Biomarker Potential of ncRNAs. Cancers (Basel) 2020; 12:cancers12082214. [PMID: 32784737 PMCID: PMC7465320 DOI: 10.3390/cancers12082214] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Revised: 07/30/2020] [Accepted: 08/05/2020] [Indexed: 12/24/2022] Open
Abstract
Renal cell tumors (RCT) remain as one of the most common and lethal urological tumors worldwide. Discrimination between (1) benign and malignant disease, (2) indolent and aggressive tumors, and (3) patient responsiveness to a specific therapy is of major clinical importance, allowing for a more efficient patient management. Nonetheless, currently available tools provide limited information and novel strategies are needed. Over the years, a putative role of non-coding RNAs (ncRNAs) as disease biomarkers has gained relevance and is now one of the most prolific fields in biological sciences. Herein, we extensively sought the most significant reports on ncRNAs as potential RCTs' diagnostic, prognostic, predictive, and monitoring biomarkers. We could conclude that ncRNAs, either alone or in combination with currently used clinical and pathological parameters, might represent key elements to improve patient management, potentiating the implementation of precision medicine. Nevertheless, most ncRNA biomarkers require large-scale validation studies, prior to clinical implementation.
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Affiliation(s)
- Gonçalo Outeiro-Pinho
- Cancer Biology and Epigenetics Group, IPO Porto Research Center (CI-IPOP), Portuguese Oncology Institute of Porto (IPO Porto), Rua Dr. António Bernardino de Almeida, 4200-072 Porto, Portugal; (G.O.-P.); (D.B.-S.); (M.P.C.); (R.H.)
| | - Daniela Barros-Silva
- Cancer Biology and Epigenetics Group, IPO Porto Research Center (CI-IPOP), Portuguese Oncology Institute of Porto (IPO Porto), Rua Dr. António Bernardino de Almeida, 4200-072 Porto, Portugal; (G.O.-P.); (D.B.-S.); (M.P.C.); (R.H.)
| | - Margareta P. Correia
- Cancer Biology and Epigenetics Group, IPO Porto Research Center (CI-IPOP), Portuguese Oncology Institute of Porto (IPO Porto), Rua Dr. António Bernardino de Almeida, 4200-072 Porto, Portugal; (G.O.-P.); (D.B.-S.); (M.P.C.); (R.H.)
| | - Rui Henrique
- Cancer Biology and Epigenetics Group, IPO Porto Research Center (CI-IPOP), Portuguese Oncology Institute of Porto (IPO Porto), Rua Dr. António Bernardino de Almeida, 4200-072 Porto, Portugal; (G.O.-P.); (D.B.-S.); (M.P.C.); (R.H.)
- Department of Pathology, Portuguese Oncology Institute of Porto, 4200-072 Porto, Portugal
- Department of Pathology and Molecular Immunology, Institute of Biomedical Sciences Abel Salazar-University of Porto (ICBAS-UP), Rua de Jorge Viterbo Ferreira n. 228, 4050-313 Porto, Portugal
| | - Carmen Jerónimo
- Cancer Biology and Epigenetics Group, IPO Porto Research Center (CI-IPOP), Portuguese Oncology Institute of Porto (IPO Porto), Rua Dr. António Bernardino de Almeida, 4200-072 Porto, Portugal; (G.O.-P.); (D.B.-S.); (M.P.C.); (R.H.)
- Department of Pathology and Molecular Immunology, Institute of Biomedical Sciences Abel Salazar-University of Porto (ICBAS-UP), Rua de Jorge Viterbo Ferreira n. 228, 4050-313 Porto, Portugal
- Correspondence: ; Tel.: +351-225084000; Fax: +351-225084199
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Li J, Yuan H, Xu H, Zhao H, Xiong N. Hypoxic Cancer-Secreted Exosomal miR-182-5p Promotes Glioblastoma Angiogenesis by Targeting Kruppel-like Factor 2 and 4. Mol Cancer Res 2020; 18:1218-1231. [PMID: 32366676 DOI: 10.1158/1541-7786.mcr-19-0725] [Citation(s) in RCA: 80] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2019] [Revised: 10/22/2019] [Accepted: 04/30/2020] [Indexed: 11/16/2022]
Abstract
Glioblastoma (GBM) is the most lethal primary brain tumor and has a complex molecular profile. Hypoxia plays a critical role during tumor progression and in the tumor microenvironment (TME). Exosomes released by tumor cells contain informative nucleic acids, proteins, and lipids involved in the interaction between cancer and stromal cells, thus leading to TME remodeling. Accumulating evidence indicates that exosomes play a pivotal role in cell-to-cell communication. However, the mechanism by which hypoxia affects tumor angiogenesis via exosomes derived from tumor cells remains largely unknown. In our study, we found that, compared with the parental cells under normoxic conditions, the GBM cells produced more exosomes, and miR-182-5p was significantly upregulated in the exosomes from GBM cells under hypoxic conditions. Exosomal miR-182-5p directly suppressed its targets Kruppel-like factor 2 and 4, leading to the accumulation of VEGFR, thus promoting tumor angiogenesis. Furthermore, exosome-mediated miR-182-5p also inhibited tight junction-related proteins (such as ZO-1, occludin, and claudin-5), thus enhancing vascular permeability and tumor transendothelial migration. Knockdown of miR-182-5p reduced angiogenesis and tumor proliferation. Interestingly, we found elevated levels circulating miR-182-5p in patient blood serum and cerebrospinal fluid samples, and its expression level was inversely related to the prognosis. IMPLICATIONS: Overall, our data clarify the diagnostic and prognostic value of tumor-derived exosome-mediated miR-182-5p and reveal the distinctive cross-talk between tumor cells and human umbilical vein endothelial cells mediated by tumor-derived exosomes that modulate tumor vasculature.
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Affiliation(s)
- Junjun Li
- Department of Neurosurgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, P.R. China
| | - Hongliang Yuan
- Department of Ultrasound, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, P.R. China
| | - Hao Xu
- Department of Neurosurgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, P.R. China
| | - Hongyang Zhao
- Department of Neurosurgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, P.R. China
| | - Nanxiang Xiong
- Department of Neurosurgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, P.R. China.
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Zheng H, Wang JJ, Zhao LJ, Yang XR, Yu YL. Exosomal miR-182 regulates the effect of RECK on gallbladder cancer. World J Gastroenterol 2020; 26:933-946. [PMID: 32206004 PMCID: PMC7081010 DOI: 10.3748/wjg.v26.i9.933] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/05/2019] [Revised: 01/08/2020] [Accepted: 01/18/2020] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND As the most common biliary malignancy, gallbladder cancer (GC) is an elderly-biased disease. Although extensive studies have elucidated the molecular mechanism of microRNA 182 (miR-182) and reversion-inducing-cysteine-rich protein with kazal motifs (RECK) in various cancers, the specific role of exosomal miR-182 and RECK in GC remains poorly understood.
AIM To explore the relationship between exosomal miR-182/RECK and metastasis of GC.
METHODS Paired GC and adjacent normal tissues were collected from 78 patients. Quantitative polymerase chain reaction was employed to detect miR-182 and exosomal miR-182 expression, and Western blotting was conducted to determine RECK expression. In addition, the effects of exosomal miR-182/RECK on the biological function of human GC cells were observed. Moreover, the double luciferase reporter gene assay was applied to validate the targeting relationship between miR-182 and RECK.
RESULTS Compared with normal gallbladder epithelial cells, miR-182 was highly expressed in GC cells, while RECK had low expression. Exosomal miR-182 could be absorbed and transferred by cells. Exosomal miR-182 inhibited RECK expression and promoted the migration and invasion of GC cells.
CONCLUSION Exosomal miR-182 can significantly promote the migration and invasion of GC cells by inhibiting RECK; thus miR-182 can be used as a therapeutic target for GC.
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Affiliation(s)
- Hong Zheng
- Department of Pathology, Affiliated Hospital of Zunyi Medical University, Zunyi 563003, Guizhou Province, China
| | - Jin-Jing Wang
- Department of Pathology, Affiliated Hospital of Zunyi Medical University, Zunyi 563003, Guizhou Province, China
| | - Li-Jin Zhao
- Department of Hepatopancreatobiliary Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi 563003, Guizhou Province, China
| | - Xiao-Rong Yang
- Department of Pathology, Affiliated Hospital of Zunyi Medical University, Zunyi 563003, Guizhou Province, China
| | - Yong-Lin Yu
- Department of Pathology, Affiliated Hospital of Zunyi Medical University, Zunyi 563003, Guizhou Province, China
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Metastasis Associated Lung Adenocarcinoma Transcript 1: An update on expression pattern and functions in carcinogenesis. Exp Mol Pathol 2019; 112:104330. [PMID: 31712117 DOI: 10.1016/j.yexmp.2019.104330] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2019] [Accepted: 11/03/2019] [Indexed: 12/28/2022]
Abstract
The Metastasis Associated Lung Adenocarcinoma Transcript 1 (MALAT1) is among long non-coding RNAs (lncRNAs) which has disapproved the old term of "junk DNA" which was used for majority of human genome which are not transcribed to proteins. An extensive portion of literature points to the fundamental role of this lncRNA in tumorigenesis process of diverse cancers ranging from solid tumors to leukemia. Being firstly identified in lung cancer, it has prognostic and diagnostic values in several cancer types. Consistent with the proposed oncogenic roles for this lncRNA, most of studies have shown up-regulation of MALAT1 in malignant tissues compared with non-malignant/normal tissues of the same source. However, few studies have shown down-regulation of MALAT1 in breast cancer, endometrial cancer, colorectal cancer and glioma. In the current study, we have conducted a comprehensive literature search and provided an up-date on the role of MALAT1 in cancer biology. Our investigation underscores a potential role as a diagnostic/prognostic marker and a putative therapeutic target for MALAT1.
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Mo JS, Park WC, Choi SC, Yun KJ, Chae SC. MicroRNA 452 Regulates Cell Proliferation, Cell Migration, and Angiogenesis in Colorectal Cancer by Suppressing VEGFA Expression. Cancers (Basel) 2019; 11:E1613. [PMID: 31652600 PMCID: PMC6826374 DOI: 10.3390/cancers11101613] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2019] [Revised: 10/13/2019] [Accepted: 10/18/2019] [Indexed: 12/24/2022] Open
Abstract
The human microRNA 452 (MIR452) was identified as a colorectal cancer (CRC)-associated micro RNA (miRNA) by miRNA expression profiling of human CRC tissues versus normal colorectal tissues. It was significantly up-regulated in human CRC tissues. However, the functional mechanisms of MIR452 and its target genes in CRC remain unclear. We identified 27 putative MIR452 target genes, and found that the vascular endothelial growth factor A (VEGFA) was a direct target gene of MIR452. Both cellular and extracellular VEGFA levels were significantly downregulated in CRC cells upon their transfection with MIR452 or siVEGFA. VEGFA expression was frequently downregulated in human CRC tissues in comparison with that in their healthy counterparts. We showed that MIR452 regulated the expression of genes in the VEGFA-mediated signal transduction pathways vascular endothelial growth factor receptor 1 (VEGFR2)-mitogen-activated protein kinase (MAPK) and VEGFR2-SRC proto-oncogene non-receptor tyrosine kinase (SRC) in CRC cells. Immunohistological analyses of xenografted MIR452-overexpressing CRC cells in mice showed that MIR452 regulated cell proliferation and angiogenesis. Furthermore, aortic ring angiogenesis assay in rats clearly showed that the number of microvessels formed was significantly reduced by MIR452 transfection. Our findings suggest that MIR452 regulates cell proliferation, cell migration, and angiogenesis by suppressing VEGFA expression in early CRC progression; therefore, MIR452 may have therapeutic value in relation to human CRC.
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Affiliation(s)
- Ji Su Mo
- Department of Pathology, School of Medicine, Wonkwang University, Iksan, Chonbuk 54538, Korea.
- Digestive Disease Research Institute, Wonkwang University, Iksan, Chonbuk 54538, Korea.
| | - Won Cheol Park
- Digestive Disease Research Institute, Wonkwang University, Iksan, Chonbuk 54538, Korea.
| | - Suck-Chei Choi
- Digestive Disease Research Institute, Wonkwang University, Iksan, Chonbuk 54538, Korea.
| | - Ki Jung Yun
- Department of Pathology, School of Medicine, Wonkwang University, Iksan, Chonbuk 54538, Korea.
- Digestive Disease Research Institute, Wonkwang University, Iksan, Chonbuk 54538, Korea.
| | - Soo-Cheon Chae
- Department of Pathology, School of Medicine, Wonkwang University, Iksan, Chonbuk 54538, Korea.
- Digestive Disease Research Institute, Wonkwang University, Iksan, Chonbuk 54538, Korea.
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Li SC, Huang LH, Chien KJ, Pan CY, Lin PH, Lin Y, Weng KP, Tsai KW. MiR-182-5p enhances in vitro neutrophil infiltration in Kawasaki disease. Mol Genet Genomic Med 2019; 7:e990. [PMID: 31605468 PMCID: PMC6900372 DOI: 10.1002/mgg3.990] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2019] [Revised: 08/19/2019] [Accepted: 09/05/2019] [Indexed: 12/18/2022] Open
Abstract
Background Kawasaki disease (KD) patients could develop coronary artery lesion (CAL) which threatens children's life. A previous study identified KD biomarker miRNAs that could discriminate KD patients from febrile non‐KD patients. We wonder whether these KD prediction biomarkers could be further applied to predict CAL formation in KD patients. Methods To examine this hypothesis, we conducted a meta‐analysis, miRNA mimic transfection, in vitro cell model and microarray assays. Results We first showed that miR‐182‐5p and miR‐183‐5p kept higher levels in the KD patients with CAL than those without CAL (p < .05). Further machine learning alignment confirmed that CAL formation could be predicted, with an auROC value of 0.86. We further treated neutrophil cells with miR‐182‐5p mimic, followed by in vitro transendotherial migration assay. As a result, miR‐182‐5p overexpression significantly (p < .05) enhanced neutrophil cells to infiltrate the endothelial layer composed of human coronary artery endothelium cells. Further microarray assay and pathway enrichment analysis showed that the genes activated with miR‐182‐5p overexpression were significantly enriched in the leukocyte transendothelial migration pathway (kegg_pathway_194, p < .05). Conclusion Therefore, our study suggested that miR‐182‐5p enhanced in vitro leukocyte infiltration by activating the leukocyte transendothelial migration pathway in CAL formation in KD.
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Affiliation(s)
- Sung-Chou Li
- Genomics and Proteomics Core Laboratory, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Lien-Hung Huang
- Genomics and Proteomics Core Laboratory, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Kuang-Jen Chien
- Department of Pediatrics, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan
| | - Chao-Yu Pan
- Institute of Biomedical Science, Academia Sinica and Institute of Biomedical Informatics, National Yang-Ming University, Taipei, Taiwan
| | - Pei-Hsien Lin
- Genomics and Proteomics Core Laboratory, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Yuyu Lin
- Genomics and Proteomics Core Laboratory, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Ken-Pen Weng
- Department of Pediatrics, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan.,Department of Medicine, National Yang-Ming University, Taipei, Taiwan.,Shu-Zen Junior College of Medicine and Management, Kaohsiung, Taiwan
| | - Kuo-Wang Tsai
- Department of Medical Education and Research, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan
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37
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Yang Q, Tang Y, Tang C, Cong H, Wang X, Shen X, Ju S. Diminished LINC00173 expression induced miR-182-5p accumulation promotes cell proliferation, migration and apoptosis inhibition via AGER/NF-κB pathway in non-small-cell lung cancer. Am J Transl Res 2019; 11:4248-4262. [PMID: 31396332 PMCID: PMC6684891] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2019] [Accepted: 06/22/2019] [Indexed: 06/10/2023]
Abstract
Non-small cell lung cancer (NSCLC) is one of the most common malignant tumors in the world, and non-coding RNA (ncRNA) has recently been widely reported to participate in the development of NSCLC. Some ncRNAs, especially microRNAs (miRNAs), are widely reported as tumor drug targets due to their short transcript length and easiness for processing into small molecule compounds. Therefore, exploring the potential roles of specific miRNAs in NSCLC may provide a better understanding of the molecular etiology. In this study, we downloaded the large-scale RNA-seq data from the Cancer Genome Atlas (TCGA) database, and identified 211 differentially expressed miRNAs (121 up-regulated and 90 down-regulated) in NSCLC. Similar to the TCGA database, miR-182-5p was significantly up-regulated in the serum and tissue samples of NSCLC patients. Clinicopathological parameters revealed the positive correlation between miR-182-5p expression and advanced TNM stage. Functional tests showed miR-182-5p overexpression promoted cell proliferation, migration and apoptosis inhibition, while miR-182-5p knockdown weakened the above phenotypes. Besides, advanced glycosylation end-product specific receptor (AGER) was identified as a direct downstream target of miR-182-5p. Alteration of AGER expression or NF-κB inhibitor could partially counteract the bioactive roles induced by miR-182-5p overexpression or knockdown. Further study disclosed down-regulated LINC00173 was negatively corrected with miR-182-5p in NSCLC tissues. LINC00173 could regulate miR-182-5p expression and reversed functional behaviors mediated by miR-182-5p/AGER/NF-κB axis. Taken together, miR-182-5p mediated the malignant phenotypes through NF-κB pathway via targeting AGER, and LINC00173 acted as a potential negative regulator of miR-182-5p in NSCLC cells.
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Affiliation(s)
- Qian Yang
- Department of Laboratory Medicine, Affiliated Hospital of Nantong UniversityNO. 20, Xisi Road, Nantong 226001, Jiangsu, China
| | - Yaoyao Tang
- Department of Laboratory Medicine, Affiliated Hospital of Nantong UniversityNO. 20, Xisi Road, Nantong 226001, Jiangsu, China
| | - Chenxue Tang
- Department of Laboratory Medicine, Affiliated Hospital of Nantong UniversityNO. 20, Xisi Road, Nantong 226001, Jiangsu, China
| | - Hui Cong
- Department of Laboratory Medicine, Affiliated Hospital of Nantong UniversityNO. 20, Xisi Road, Nantong 226001, Jiangsu, China
| | - Xudong Wang
- Department of Laboratory Medicine, Affiliated Hospital of Nantong UniversityNO. 20, Xisi Road, Nantong 226001, Jiangsu, China
| | - Xianjuan Shen
- Research Center of Clinical Medicine, Affiliated Hospital of Nantong UniversityNO. 20, Xisi Road, Nantong 226001, Jiangsu, China
| | - Shaoqing Ju
- Department of Laboratory Medicine, Affiliated Hospital of Nantong UniversityNO. 20, Xisi Road, Nantong 226001, Jiangsu, China
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Braga EA, Fridman MV, Loginov VI, Dmitriev AA, Morozov SG. Molecular Mechanisms in Clear Cell Renal Cell Carcinoma: Role of miRNAs and Hypermethylated miRNA Genes in Crucial Oncogenic Pathways and Processes. Front Genet 2019; 10:320. [PMID: 31110513 PMCID: PMC6499217 DOI: 10.3389/fgene.2019.00320] [Citation(s) in RCA: 57] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2018] [Accepted: 03/22/2019] [Indexed: 12/13/2022] Open
Abstract
Clear cell renal cell carcinoma (ccRCC) is the third most common urological cancer, and it has the highest mortality rate. The increasing drug resistance of metastatic ccRCC has resulted in the search for new biomarkers. Epigenetic regulatory mechanisms, such as genome-wide DNA methylation and inhibition of protein translation by interaction of microRNA (miRNA) with its target messenger RNA (mRNA), are deeply involved in the pathogenesis of human cancers, including ccRCC, and may be used in its diagnosis and prognosis. Here, we review oncogenic and oncosuppressive miRNAs, their putative target genes, and the crucial pathways they are involved in. The contradictory behavior of a number of miRNAs, such as suppressive and anti-metastatic miRNAs with oncogenic potential (for example, miR-99a, miR-106a, miR-125b, miR-144, miR-203, miR-378), is examined. miRNAs that contribute mostly to important pathways and processes in ccRCC, for instance, PI3K/AKT/mTOR, Wnt-β, histone modification, and chromatin remodeling, are discussed in detail. We also separately consider their participation in crucial oncogenic processes, such as hypoxia and angiogenesis, metastasis, and epithelial-mesenchymal transition (EMT). The review also considers the interactions of long non-coding RNAs (lncRNAs) and miRNAs of significance in ccRCC. Recent advances in the understanding of the role of hypermethylated miRNA genes in ccRCC and their usefulness as biomarkers are reviewed based on our own data and those available in the literature. Finally, new data and perspectives concerning the clinical applications of miRNAs in the diagnosis, prognosis, and treatment of ccRCC are discussed.
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Affiliation(s)
| | - Marina V. Fridman
- Vavilov Institute of General Genetics, Russian Academy of Sciences, Moscow, Russia
| | - Vitaly I. Loginov
- Institute of General Pathology and Pathophysiology, Moscow, Russia
- Research Center of Medical Genetics, Moscow, Russia
| | - Alexey A. Dmitriev
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow, Russia
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Liu Z, Wang Y, Shu S, Cai J, Tang C, Dong Z. Non-coding RNAs in kidney injury and repair. Am J Physiol Cell Physiol 2019; 317:C177-C188. [PMID: 30969781 DOI: 10.1152/ajpcell.00048.2019] [Citation(s) in RCA: 75] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Acute kidney injury (AKI) is a major kidney disease featured by a rapid decline of renal function. Pathologically, AKI is characterized by tubular epithelial cell injury and death. Besides its acute consequence, AKI contributes critically to the development and progression of chronic kidney disease (CKD). After AKI, surviving tubular cells regenerate to repair. Normal repair restores tubular integrity, while maladaptive or incomplete repair results in renal fibrosis and eventually CKD. Non-coding RNAs (ncRNAs) are functional RNA molecules that are transcribed from DNA but not translated into proteins, which mainly include microRNAs (miRNAs), long non-coding RNAs (lncRNAs), circular RNAs (circRNAs), small nucleolar RNAs (snoRNAs), and tRNAs. Accumulating evidence suggests that ncRNAs play important roles in kidney injury and repair. In this review, we summarize the recent advances in the understanding of the roles of ncRNAs, especially miRNAs and lncRNAs in kidney injury and repair, discuss the potential application of ncRNAs as biomarkers of AKI as well as therapeutic targets for treating AKI and impeding AKI-CKD transition, and highlight the future research directions of ncRNAs in kidney injury and repair.
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Affiliation(s)
- Zhiwen Liu
- Department of Nephrology, The Key Laboratory of Kidney Disease and Blood Purification of Hunan Province, Second Xiangya Hospital at Central South University , Changsha , China
| | - Ying Wang
- Department of Nephrology, The Key Laboratory of Kidney Disease and Blood Purification of Hunan Province, Second Xiangya Hospital at Central South University , Changsha , China
| | - Shaoqun Shu
- Department of Nephrology, The Key Laboratory of Kidney Disease and Blood Purification of Hunan Province, Second Xiangya Hospital at Central South University , Changsha , China
| | - Juan Cai
- Department of Nephrology, The Key Laboratory of Kidney Disease and Blood Purification of Hunan Province, Second Xiangya Hospital at Central South University , Changsha , China
| | - Chengyuan Tang
- Department of Nephrology, The Key Laboratory of Kidney Disease and Blood Purification of Hunan Province, Second Xiangya Hospital at Central South University , Changsha , China
| | - Zheng Dong
- Department of Nephrology, The Key Laboratory of Kidney Disease and Blood Purification of Hunan Province, Second Xiangya Hospital at Central South University , Changsha , China.,Department of Cellular Biology and Anatomy, Medical College of Georgia at Augusta University and Charlie Norwood Veterans Affairs Medical Center , Augusta, Georgia
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Xu S, Guo J, Zhang W. lncRNA PCAT19 promotes the proliferation of laryngocarcinoma cells via modulation of the miR-182/PDK4 axis. J Cell Biochem 2019; 120:12810-12821. [PMID: 30868666 DOI: 10.1002/jcb.28552] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2018] [Revised: 01/06/2019] [Accepted: 01/14/2019] [Indexed: 01/01/2023]
Abstract
The mechanism of tumorigenesis has not been fully identified in laryngeal cancer, which accounts for one fourth of patents with head and neck tumors. Long noncoding RNA PCAT19 has been shown to participate in the prostate cancer progression. However, little is known about the role of PCAT19 in the tumorigenesis of laryngeal cancer. In our study, it was shown that the expression levels of PCAT19 was increased in laryngeal tumor tissues and associated with decreased overall survival. Using laryngeal cancer cells lines HEp-2 and AMC-HN-8, it was demonstrated that knockdown of PCAT19 decreased the cell proliferation, increased the mitochondrial respiration, and inhibited the glycolysis. In detail, it showed that the PDK4 expression and PDHE1α phosphorylation levels were decreased upon the PCAT19 knockdown. Further studies indicated that miR-182 functioned as the bridge between PCAT19 and PDK4, which could also regulate the cellular metabolism thus affecting the cell proliferation. Furthermore, it was shown that the PCAT19/miR-182/PDK4 axis existed and regulated cell proliferation by modulating glycolysis and mitochondrial respiration. Finally, we showed that the PCAT19 knockdown decreased the tumor growth in vivo, possibly through regulating the miR-182/PDK4 axis. In conclusion, we demonstrated that lncRNA PCAT19 promoted cell proliferation and tumorigenesis by modulating the miR-182/PDK4 axis and the metabolism balance. PCAT19 might become a promising new target for laryngeal cancer therapeutics.
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Affiliation(s)
- Shuai Xu
- Department of Otolaryngology Head and Neck Surgery, Luoyang Central Hospital Affiliated to Zhengzhou University, Luoyang, Henan, China
| | - Jie Guo
- Department of Otolaryngology Head and Neck Surgery, Luoyang Central Hospital Affiliated to Zhengzhou University, Luoyang, Henan, China
| | - Wei Zhang
- Department of Otolaryngology Head and Neck Surgery, Luoyang Central Hospital Affiliated to Zhengzhou University, Luoyang, Henan, China
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