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Sarkar N, Mishra R, Gopal C, Kumar A. miR-617 interacts with the promoter of DDX27 and positively regulates its expression: implications for cancer therapeutics. Front Oncol 2024; 14:1411539. [PMID: 38939334 PMCID: PMC11208480 DOI: 10.3389/fonc.2024.1411539] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2024] [Accepted: 05/31/2024] [Indexed: 06/29/2024] Open
Abstract
Background Pervasive transcription of the eukaryotic genome generates noncoding RNAs (ncRNAs), which regulate messenger RNA (mRNA) stability and translation. MicroRNAs (miRNAs/miRs) represent a group of well-studied ncRNAs that maintain cellular homeostasis. Thus, any aberration in miRNA expression can cause diseases, including carcinogenesis. According to microRNA microarray analyses, intronic miR-617 is significantly downregulated in oral squamous cell carcinoma (OSCC) tissues compared to normal oral tissues. Methods The miR-617-mediated regulation of DDX27 is established by performing experiments on OSCC cell lines, patient samples, and xenograft nude mice model. Overexpression plasmid constructs, bisulphite sequencing PCR, bioinformatics analyses, RT-qPCR, Western blotting, dual-luciferase reporter assay, and cell-based assays are utilized to delineate the role of miR-617 in OSCC. Results The present study shows that miR-617 has an anti-proliferative role in OSCC cells and is partly downregulated in OSCC cells due to the hypermethylation of its independent promoter. Further, we demonstrate that miR-617 upregulates DDX27 gene by interacting with its promoter in a dose-dependent and sequence-specific manner, and this interaction is found to be biologically relevant in OSCC patient samples. Subsequently, we show that miR-617 regulates cell proliferation, apoptosis, and anchorage-independent growth of OSCC cells by modulating DDX27 levels. Besides, our study shows that miR-617 exerts its effects through the PI3K/AKT/MTOR pathway via regulating DDX27 levels. Furthermore, the OSCC xenograft study in nude mice shows the anti-tumorigenic potential of miR-617. Conclusion miR-617-mediated upregulation of DDX27 is a novel mechanism in OSCC and underscores the therapeutic potential of synthetic miR-617 mimics in cancer therapeutics. To the best of our knowledge, miR-617 is the 15th example of a miRNA that upregulates the expression of a protein-coding gene by interacting with its promoter.
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Affiliation(s)
- Neelanjana Sarkar
- Department of Developmental Biology and Genetics, Indian Institute of Science, Bangalore, India
| | - Radha Mishra
- Department of Developmental Biology and Genetics, Indian Institute of Science, Bangalore, India
| | - Champaka Gopal
- Department of Pathology, Kidwai Memorial Institute of Oncology, Bangalore, India
| | - Arun Kumar
- Department of Developmental Biology and Genetics, Indian Institute of Science, Bangalore, India
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2
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Yang L, Xiao Y, Deng S, Yan D, Li Z, Wang Y, Lei C. Signal Transducer and Activator of Transcription 4-Induced Up-Regulated LINC01278 Enhances Proliferation and Invasion of Non-Small Cell Lung Cancer Cells via the MicroRNA-877-5p/Activating Transcription Factor 4 Axis. Tissue Eng Regen Med 2024; 21:595-608. [PMID: 38466361 PMCID: PMC11087432 DOI: 10.1007/s13770-024-00625-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Revised: 12/28/2023] [Accepted: 01/02/2024] [Indexed: 03/13/2024] Open
Abstract
BACKGROUND The purpose of this study was to investigate the specific effects of signal transducer and activator of transcription 4 (STAT4)-induced long intergenic nonprotein coding RNA 1278 (LINC01278) on the growth of non-small cell lung cancer (NSCLC) cells involved in the microRNA (miR)-877-5p/activated transcription factor 4 (ATF4) axis. METHODS NSCLC tumor tissue and adjacent normal tissue were collected. Human normal lung epithelial cell BEAS-2B and human NSCLC cell lines (H1299, H1975, A549, H2228) were collected. The expression levels of STAT4, LINC01278, miR-877-5p, and ATF4 were detected. A549 cells were screened for subsequent experiments. The proliferation ability of cells was detected by colony formation experiment. Cell apoptosis was tested by flow cytometry. Scratch test and transwell assay were used to detect the migration and invasion ability of cells. Biological function of LINC01278 in NSCLC was confirmed by xenograft experiments. RESULTS Low expression miR-877-5p and high expression of STAT4, LINC01278 and ATF4 were detected in NSCLC. Silenced LINC01278 in A549 cell depressed cell proliferation, migration and invasion, but facilitated cell apoptosis. LINC01278 was positively correlated with STAT4 and could directly bind to miR-877-5p. Upregulating miR-877-5p suppressed NSCLC cell progression, while downregulating miR-877-5p had the opposite effect. Upregulating miR-877-5p abrogated the effects of silenced LINC01278 on NSCLC cell progression. MiR-877-5p targeted ATF4. ATF4 upregulation could partly restore the carcinogenic effect of LINC01278 in vitro and in vivo. CONCLUSION Our data supports that STAT4-induced upregulation of LINC01278 promotes NSCLC progression by modulating the miR-877-5p/ATF4 axis, suggesting a novel direction for NSCLC treatment.
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Affiliation(s)
- LinZhu Yang
- Department of Thoracic Surgery, The First Affiliated Hospital of Kunming Medical University, No. 295, Xichang Road, KunMing City, 650032, YunNan Province, China
| | - Yi Xiao
- First Department of Pumonary and Critical Care Medicline, Yan'an Affiliated Hospital of Kunming Medical University, KunMing City, 650051, YunNan Province, China
| | - ShouJun Deng
- Department of Thoracic Surgery, Yan'an Affiliated Hospital of Kunming Medical University, 245 East Renmin Road, Panlong District, KunMing City, 650051, YunNan Province, China
| | - DaiLing Yan
- First Department of Pumonary and Critical Care Medicline, Yan'an Affiliated Hospital of Kunming Medical University, KunMing City, 650051, YunNan Province, China
| | - ZhenHua Li
- Department of Thoracic Surgery, Yan'an Affiliated Hospital of Kunming Medical University, 245 East Renmin Road, Panlong District, KunMing City, 650051, YunNan Province, China
| | - Ying Wang
- Department of Thoracic Surgery, Yan'an Affiliated Hospital of Kunming Medical University, 245 East Renmin Road, Panlong District, KunMing City, 650051, YunNan Province, China.
| | - ChangCheng Lei
- Department of Thoracic Surgery, The First Affiliated Hospital of Kunming Medical University, No. 295, Xichang Road, KunMing City, 650032, YunNan Province, China.
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Wang Z, Zhang Y, Li K. Nuclear miRNAs as transcriptional regulators in processes related to various cancers (Review). Int J Oncol 2024; 64:56. [PMID: 38606502 PMCID: PMC11015916 DOI: 10.3892/ijo.2024.5644] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Accepted: 03/29/2024] [Indexed: 04/13/2024] Open
Abstract
MicroRNAs (miRNAs) are noncoding small nucleic acids that contain ~22 nucleotides and are considered to promote the degradation or inhibit the translation of mRNA by targeting its 3'‑untranslated region. However, growing evidence has revealed that nuclear miRNAs, combined with gene promoters or enhancers, are able to directly mediate gene transcription. These miRNAs exert a critical influence on cancer progression by affecting cell growth, migration and invasion. In this review, the direct regulation of gene expression by nuclear miRNAs at the transcriptional level was discussed and summarized, and their mechanisms of action in cancers were highlighted with reference to the various body systems.
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Affiliation(s)
- Ziqiang Wang
- Department of Nuclear Medicine, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Jinan, Shandong 250014, P.R. China
- Biomedical Sciences College & Shandong Medicinal Biotechnology Centre, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, Shandong 250117, P.R. China
| | - Yu Zhang
- Biomedical Sciences College & Shandong Medicinal Biotechnology Centre, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, Shandong 250117, P.R. China
| | - Kun Li
- Department of Nuclear Medicine, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Jinan, Shandong 250014, P.R. China
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4
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Wang C, Zhao X, Wu Z, Huang G, Lin R, Chen H, Xu K, Sun K, Zhou H, Shu J. Identification of Differentially Expressed mRNAs and miRNAs and Related Regulatory Networks in Cumulus Oophorus Complexes Associated with Fertilization. Reprod Sci 2024; 31:1408-1419. [PMID: 38216777 DOI: 10.1007/s43032-023-01413-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Accepted: 11/16/2023] [Indexed: 01/14/2024]
Abstract
Cumulus oophorus complexes (COCs) are the first extracellular barriers that sperm must pass through to fuse with oocytes, which have an important role in oocyte maturation and fertilization. However, little is known about the molecular mechanisms of COCs involved in fertilization. In this study, COCs were collected and then randomly divided into a test group that interacted with sperm and a control group that did not interact with sperm. Then, the total RNA was extracted; RNA transcriptome and small RNA libraries were prepared, sequenced, and analyzed. The results showed that 1283 differentially expressed genes (DEGs), including 560 upregulated and 723 downregulated genes. In addition, 57 differentially expressed miRNAs (DEMIs) with 35 upregulated and 22 downregulated were also detected. After the RNA-seq results were verified by RT-qPCR, 86 effective DEGs and 40 DEMIs were finally screened and a DEMI-DEG regulatory network was constructed. From this, the top ten hub target genes were HNF4A, SPN, WSCD1, TMEM239, SLC2A4, E2F2, SIAH3, ADORA3, PIK3R2, and GDNF, and they were all downregulated. The top ten hub DEMIs were miR-6876-5p, miR-877-3p, miR-6818-5p, miR-4690-3p, miR-6789-3p, miR-6837-5p, miR-6861-5p, miR-4421, miR-6501-5p, and miR-6875-3p, all of which were upregulated. The KEGG signaling pathway enrichment analysis showed that the effective DEGs were significantly enriched in the calcium, AMPK, and phospholipase D signaling pathways. Our study identified several DEGs and DEMIs and potential miRNA-mRNA regulatory pathways in COCs and these may contribute to fertilization. This study may provide novel insights into potential biomarkers for fertilization failure.
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Affiliation(s)
- Caizhu Wang
- Department of Reproductive Medicine, Guangxi Maternal and Child Health Hospital, Nanning, 530003, Guangxi, China
| | - Xin Zhao
- Department of Reproductive Medicine, Guangxi Maternal and Child Health Hospital, Nanning, 530003, Guangxi, China
| | - Zhulian Wu
- Department of Reproductive Medicine, Guangxi Maternal and Child Health Hospital, Nanning, 530003, Guangxi, China
| | - Guiting Huang
- Department of Reproductive Medicine, Guangxi Maternal and Child Health Hospital, Nanning, 530003, Guangxi, China
| | - Ruoyun Lin
- Department of Reproductive Medicine, Guangxi Maternal and Child Health Hospital, Nanning, 530003, Guangxi, China
| | - Huanhua Chen
- Department of Reproductive Medicine, Guangxi Maternal and Child Health Hospital, Nanning, 530003, Guangxi, China
| | - Kongrong Xu
- Department of Reproductive Medicine, Guangxi Maternal and Child Health Hospital, Nanning, 530003, Guangxi, China
| | - Kejian Sun
- Department of Reproductive Medicine, Guangxi Maternal and Child Health Hospital, Nanning, 530003, Guangxi, China
| | - Hong Zhou
- Department of Reproductive Medicine, Guangxi Maternal and Child Health Hospital, Nanning, 530003, Guangxi, China.
| | - Jinhui Shu
- Department of Reproductive Medicine, Guangxi Maternal and Child Health Hospital, Nanning, 530003, Guangxi, China.
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Tavakoli Pirzaman A, Alishah A, Babajani B, Ebrahimi P, Sheikhi SA, Moosaei F, Salarfar A, Doostmohamadian S, Kazemi S. The Role of microRNAs in Hepatocellular Cancer: A Narrative Review Focused on Tumor Microenvironment and Drug Resistance. Technol Cancer Res Treat 2024; 23:15330338241239188. [PMID: 38634139 PMCID: PMC11025440 DOI: 10.1177/15330338241239188] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Revised: 01/26/2024] [Accepted: 02/26/2024] [Indexed: 04/19/2024] Open
Abstract
Globally, hepatic cancer ranks fourth in terms of cancer-related mortality and is the sixth most frequent kind of cancer. Around 80% of liver cancers are hepatocellular carcinomas (HCC), which are the leading cause of cancer death. It is well known that HCC may develop resistance to the available chemotherapy treatments very fast. One of the biggest obstacles in providing cancer patients with appropriate care is drug resistance. According to reports, more than 90% of cancer-specific fatalities are caused by treatment resistance. By binding to the 3'-untranslated region of target messenger RNAs (mRNAs), microRNAs (miRNAs), a group of noncoding RNAs which are around 17 to 25 nucleotides long, regulate target gene expression. Moreover, they play role in the control of signaling pathways, cell proliferation, and cell death. As a result, miRNAs play an important role in the microenvironment of HCC by changing immune phenotypes, hypoxic conditions, and acidification, as well as angiogenesis and extracellular matrix components. Moreover, changes in miRNA levels in HCC can effectively resist cancer cells to chemotherapy by affecting various cellular processes such as autophagy, apoptosis, and membrane transporter activity. In the current work, we narratively reviewed the role of miRNAs in HCC, with a special focus on tumor microenvironment and drug resistance.
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Affiliation(s)
| | - Ali Alishah
- Student Research Committee, Babol University of Medical Sciences, Babol, Iran
| | - Bahareh Babajani
- Student Research Committee, Babol University of Medical Sciences, Babol, Iran
| | - Pouyan Ebrahimi
- Student Research Committee, Babol University of Medical Sciences, Babol, Iran
| | - Seyyed Ali Sheikhi
- Student Research Committee, Babol University of Medical Sciences, Babol, Iran
| | - Farhad Moosaei
- Student Research Committee, Babol University of Medical Sciences, Babol, Iran
| | | | | | - Sohrab Kazemi
- Cellular and Molecular Biology Research Center, Health Research Center, Babol University of Medical Sciences, Babol, Iran
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6
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Zhong S, Borlak J. Sex disparities in non-small cell lung cancer: mechanistic insights from a cRaf transgenic disease model. EBioMedicine 2023; 95:104763. [PMID: 37625265 PMCID: PMC10470261 DOI: 10.1016/j.ebiom.2023.104763] [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: 03/03/2023] [Revised: 07/10/2023] [Accepted: 08/03/2023] [Indexed: 08/27/2023] Open
Abstract
BACKGROUND Women are at greater risk of developing non-small cell lung cancer (NSCLC), yet the underlying causes remain unclear. METHODS We performed whole genome scans in lung tumours of cRaf transgenic mice and identified miRNA, transcription factor and hormone receptor dependent gene regulations. We confirmed hormone receptors by immunohistochemistry and constructed regulatory gene networks by considering experimentally validated miRNA-gene and transcription factor-miRNA/gene targets. Bioinformatics, genomic foot-printing and gene enrichment analysis established sex-specific circuits of lung tumour growth. Translational research involved a large cohort of NSCLC patients. We evaluated commonalities in sex-specific NSCLC gene regulations between mice and humans and determined their prognostic value in Kaplan-Meier survival statistics and COX proportional hazard regression analysis. FINDINGS Overexpression of the cRaf kinase elicited an extraordinary 8-fold increase in tumour growth among females, and nearly 70% of the 112 differentially expressed genes (DEGs) were female specific. We identified oncogenes, oncomirs, tumour suppressors, cell cycle regulators and MAPK/EGFR signalling molecules, which prompted sex-based differences in NSCLC, and we deciphered a regulatory gene-network, which protected males from accelerated tumour growth. Strikingly, 41% of DEGs are targets of hormone receptors, and the majority (85%) are oestrogen receptor (ER) dependent. We confirmed the role of ER in a large cohort of NSCLC patients and validated 40% of DEGs induced by cRaf in clinical tumour samples. INTERPRETATION We report the molecular wiring that prompted sex disparities in tumour growth. This allowed us to propose the development of molecular targeted therapies by jointly blocking ER, CDK1 and arginase 2 in NSCLC. FUNDING We gratefully acknowledge the financial support of the Lower Saxony Ministry of Culture and Sciences and Volkswagen Foundation, Germany to JB (25A.5-7251-99-3/00) and of the Chinese Scholarship Council to SZ (202008080022). This publication is funded by the Deutsche Forschungsgemeinschaft (DFG) as part of the "Open Access Publikationskosten" program.
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Affiliation(s)
- Shen Zhong
- Centre for Pharmacology and Toxicology, Hannover Medical School, Carl-Neuberg-Str. 1, Hannover 30625, Germany
| | - Jürgen Borlak
- Centre for Pharmacology and Toxicology, Hannover Medical School, Carl-Neuberg-Str. 1, Hannover 30625, Germany.
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7
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Rafat M, Kohsarian M, Bahiraei M, Nikpoor AR. A Comprehensive Study on Signal Transduction and Therapeutic Role of miR-877 in Human Cancers. Adv Biomed Res 2023; 12:118. [PMID: 37434921 PMCID: PMC10331537 DOI: 10.4103/abr.abr_412_21] [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: 12/31/2021] [Revised: 05/07/2022] [Accepted: 05/16/2022] [Indexed: 07/13/2023] Open
Abstract
MicroRNAs are a group of short non-coding RNAs (miRNAs), which are epigenetically involved in gene expression and other cellular biological processes and can be considered as potential biomarkers for cancer detection and support for treatment management. This review aims to amass the evidence in order to reach the molecular mechanism and clinical significance of miR-877 in different types of cancer. Dysregulation of miR-877 level in various types of malignancies as bladder cancer, cervical cancer, cholangiocarcinoma, colorectal cancer (CRC), gastric cancer, glioblastoma, head and neck squamous cell carcinoma (HNSCC), hepatocellular carcinoma, laryngeal squamous cell carcinoma, melanoma, non-small cell lung cancer (NSCLC), oral squamous cell carcinoma, ovarian cancer (OC), pancreatic ductal adenocarcinoma, and renal cell carcinoma (RCC) have reported, significantly increase or decrease in its level, which can be indicated to its function as oncogene or tumor suppressor. MiR-877 is involved in cell proliferation, migration, and invasion through cell cycle pathways in cancer. MiR-877 could be potential a candidate as a valuable biomarker for prognosis in various cancers. Through this study, we proposed that miR-877 can potentially be a candidate as a prognostic marker for early detection of tumor development, progression, as well as metastasis.
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Affiliation(s)
- Milad Rafat
- Student Research Committee, Faculty of Medicine, Hormozgan University of Medical Sciences, Bandar Abbas, Iran
| | - Mahdis Kohsarian
- Department of Biology, Faculty of Science, Guilan University, Rasht, Iran
| | - Mohamad Bahiraei
- Department of Radiology, Besat Hospital, Hamedan University of Medical Sciences, Hamedan, Iran
| | - Amin R. Nikpoor
- Department of Medical Genetics, Faculty of Medicine, Hormozgan University of Medical Sciences, Bandar Abbas, Iran
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MiRNA-139-3p inhibits malignant progression in urothelial carcinoma of the bladder via targeting KIF18B and inactivating Wnt/beta-catenin pathway. Pharmacogenet Genomics 2023; 33:1-9. [PMID: 36441170 DOI: 10.1097/fpc.0000000000000485] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
OBJECTIVE Bladder cancer is a highly prevalent disease worldwide. We aimed to investigate the effect of miRNA/mRNA signaling on bladder urothelial carcinoma (BUC). METHODS MiRNA-139-3p wasselected from The Cancer Genome Atlas database, and its downstream target gene was predicted. The correlation between miRNA-139-3p and intersected mRNAs was analyzed. The mRNA expression levels of miRNA-139-3p and KIF18B in BUC were assayed via quantitative real-time polymerase chain reaction. Effects of miRNA-139-3p on cell proliferation, invasion, migration and cell cycle were detected via Cell Counting Kit-8, colony formation, transwell, wound healing and flow cytometry assays, respectively. Binding relationship between miRNA-139-3p and KIF18B was verified by dual-luciferase reporter gene detection. The protein expression levels of KIF18B, β-catenin and Cyclin D1 were detected by Western blot. Rescue assays were performed for verifying the interaction among miRNA-139-3p, KIF18B and Wnt/β-catenin signaling pathway, which revealed effects of miRNA-139-3p/KIF18B on BUC cells. RESULTS MiRNA-139-3p was remarkably underexpressed, and KIF18B was dramatically overexpressed in BUC cells, respectively. It was also demonstrated that overexpressing miRNA-139-3p could prominently inhibit proliferation, invasion and migration of BUC, and block BUC cells at G0-G1 phase. Afterwards, we found that miRNA-139-3p could bind to KIF18B mRNA 3'UTR, and miRNA-139-3p had a negative regulatory effect with KIF18B. Subsequent experimental results presented that overexpressing KIF18B could reverse inhibitory effect of overexpressing miRNA-139-3p on BUC. Finally, this study also ascertained that miRNA-139-3p/KIF18B could repress oncogenic effects of BUC via modulating Wnt/β-catenin signaling pathway. CONCLUSION MiRNA-139-3p/KIF18B/Wnt/β-catenin could significantly inhibit the malignant progression of BUC, and its targeting mechanism might provide an effective therapeutic target for BUC patients.
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MicroRNA-877-5p Inhibits Cell Progression by Targeting FOXM1 in Lung Cancer. Can Respir J 2022; 2022:4256172. [PMID: 35756697 PMCID: PMC9217556 DOI: 10.1155/2022/4256172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Revised: 04/25/2022] [Accepted: 05/13/2022] [Indexed: 12/24/2022] Open
Abstract
Background Many researches revealed that microRNAs (miRNAs) function as potential oncogene or tumor suppressor gene. As an antioncogene, miR-877-5p was reduced in many tumors. Objective This research aimed to explore the biological role and mechanisms of miR-877-5p, which may help patients with non-small-cell lung cancer (NSCLC) find effective therapeutic targets. Methods The downstream targets of miR-877-5p were predicted by Bioinformatics software. RT-qPCR and western blot were employed to analyze the gene levels. The impacts of miR-877-5p and FOXM1 were assessed by cell function experiments. Results The miR-877-5p was reduced in NSCLC. In addition to this, it also inhibited cell progression of NSCLC cells in vitro. Moreover, the upregulation of FOXM1 expression restored the inhibitory effect of enhancement of miR-877-5p. Conclusions Taken together, miR-877-5p inhibited cell progression by directly targeting FOXM1, which may provide potential biomarkers for targeted therapy of NSCLC.
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Liu J, Yang T, Huang Z, Chen H, Bai Y. Transcriptional regulation of nuclear miRNAs in tumorigenesis (Review). Int J Mol Med 2022; 50:92. [PMID: 35593304 DOI: 10.3892/ijmm.2022.5148] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2022] [Accepted: 04/28/2022] [Indexed: 11/05/2022] Open
Abstract
MicroRNAs (miRNAs/miRs) are a type of endogenous non‑coding small RNA that regulates gene expression. miRNAs regulate gene expression at the post‑transcriptional level by targeting the 3'‑untranslated region (3'UTR) of cytoplasmic messenger RNAs (mRNAs). Recent research has confirmed the presence of mature miRNAs in the nucleus, which bind nascent RNA transcripts, gene promoter or enhancer regions, and regulate gene expression via epigenetic pathways. Some miRNAs have been shown to function as oncogenes or tumor suppressor genes by modulating molecular pathways involved in human cancers. Notably, a novel molecular mechanism underlying the dysregulation of miRNA expression in cancer has recently been discovered, indicating that miRNAs may be involved in tumorigenesis via a nuclear function that influences gene transcription and epigenetic states, elucidating their potential therapeutic implications. The present review article discusses the import of nuclear miRNAs, nucleus‑cytoplasm transport mechanisms and the nuclear functions of miRNAs in cancer. In addition, some software tools for predicting miRNA binding sites are also discussed. Nuclear miRNAs supplement miRNA regulatory networks in cancer as a non‑canonical aspect of miRNA action. Further research into this aspect may be critical for understanding the role of nuclear miRNAs in the development of human cancers.
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Affiliation(s)
- Junjie Liu
- School of Life Science and Engineering, Foshan University, Foshan, Guangdong 528225, P.R. China
| | - Tianhao Yang
- School of Life Science and Engineering, Foshan University, Foshan, Guangdong 528225, P.R. China
| | - Zishen Huang
- School of Life Science and Engineering, Foshan University, Foshan, Guangdong 528225, P.R. China
| | - Huifang Chen
- School of Life Science and Engineering, Foshan University, Foshan, Guangdong 528225, P.R. China
| | - Yinshan Bai
- School of Life Science and Engineering, Foshan University, Foshan, Guangdong 528225, P.R. China
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11
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Context-Dependent Regulation of Gene Expression by Non-Canonical Small RNAs. Noncoding RNA 2022; 8:ncrna8030029. [PMID: 35645336 PMCID: PMC9149963 DOI: 10.3390/ncrna8030029] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Revised: 04/27/2022] [Accepted: 04/28/2022] [Indexed: 12/02/2022] Open
Abstract
In recent functional genomics studies, a large number of non-coding RNAs have been identified. It has become increasingly apparent that noncoding RNAs are crucial players in a wide range of cellular and physiological functions. They have been shown to modulate gene expression on different levels, including transcription, post-transcriptional processing, and translation. This review aims to highlight the diverse mechanisms of the regulation of gene expression by small noncoding RNAs in different conditions and different types of human cells. For this purpose, various cellular functions of microRNAs (miRNAs), circular RNAs (circRNAs), snoRNA-derived small RNAs (sdRNAs) and tRNA-derived fragments (tRFs) will be exemplified, with particular emphasis on the diversity of their occurrence and on the effects on gene expression in different stress conditions and diseased cell types. The synthesis and effect on gene expression of these noncoding RNAs varies in different cell types and may depend on environmental conditions such as different stresses. Moreover, noncoding RNAs play important roles in many diseases, including cancer, neurodegenerative disorders, and viral infections.
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12
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Huo M, Xia A, Cheng W, Zhou M, Wang J, Shi T, Cai C, Jin W, Zhou M, Liao Y, Liao Z. Rutin Promotes Pancreatic Cancer Cell Apoptosis by Upregulating miRNA-877-3p Expression. Molecules 2022; 27:2293. [PMID: 35408691 PMCID: PMC9000526 DOI: 10.3390/molecules27072293] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Revised: 03/26/2022] [Accepted: 03/29/2022] [Indexed: 11/16/2022] Open
Abstract
(1) Background: pancreatic cancer is one of the most serious cancers due to its rapid and inevitable fatality, which has been proved very difficult to treat, compared with many other common cancers. Thus, developing an effective therapeutic strategy, especially searching for potential drugs, is the focus of current research. The exact mechanism of rutin in pancreatic cancer remains unknown. (2) Method: three pancreatic cancer cell lines were used to study the anti-pancreatic cancer effect of rutin. The potent anti-proliferative, anti-migration and pro-apoptotic properties of rutin were uncovered by cell viability, a wound-healing migration assay, and a cell apoptosis assay. High-throughput sequencing technology was used to detect the change of miRNAs expression. Immunoblotting analysis was used to detect the expression of apoptotic proteins. (3) Results: CCK-8 and EDU assays revealed that rutin significantly inhibited pancreatic cancer cells’ proliferation (p < 0.05). A wound-healing assay showed that rutin significantly suppressed pancreatic cancer cells’ migration (p < 0.05). A flow cytometric assay showed that rutin could promote pancreatic cancer cells’ apoptosis. Intriguingly, rutin significantly upregulated miR-877-3p expression to repress the transcription of Bcl-2 and to induce pancreatic cancer cell apoptosis. Accordingly, rutin and miR-877-3p mimics could promote apoptotic protein expression. (4) Conclusions: our findings indicate that rutin plays an important role in anti-pancreatic cancer effects through a rutin-miR-877-3p-Bcl-2 axis and suggests a potential therapeutic strategy for pancreatic cancer.
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Affiliation(s)
- Mingxing Huo
- Zhejiang Provincial Key Laboratory for Water Environment and Marine Biological Resources Protection, College of Life and Environmental Science, Wenzhou University, Wenzhou 325000, China; (M.H.); (A.X.); (W.C.); (M.Z.); (J.W.); (T.S.); (C.C.)
| | - Aowen Xia
- Zhejiang Provincial Key Laboratory for Water Environment and Marine Biological Resources Protection, College of Life and Environmental Science, Wenzhou University, Wenzhou 325000, China; (M.H.); (A.X.); (W.C.); (M.Z.); (J.W.); (T.S.); (C.C.)
| | - Wenwen Cheng
- Zhejiang Provincial Key Laboratory for Water Environment and Marine Biological Resources Protection, College of Life and Environmental Science, Wenzhou University, Wenzhou 325000, China; (M.H.); (A.X.); (W.C.); (M.Z.); (J.W.); (T.S.); (C.C.)
| | - Mengjie Zhou
- Zhejiang Provincial Key Laboratory for Water Environment and Marine Biological Resources Protection, College of Life and Environmental Science, Wenzhou University, Wenzhou 325000, China; (M.H.); (A.X.); (W.C.); (M.Z.); (J.W.); (T.S.); (C.C.)
| | - Jiankang Wang
- Zhejiang Provincial Key Laboratory for Water Environment and Marine Biological Resources Protection, College of Life and Environmental Science, Wenzhou University, Wenzhou 325000, China; (M.H.); (A.X.); (W.C.); (M.Z.); (J.W.); (T.S.); (C.C.)
| | - Tiantian Shi
- Zhejiang Provincial Key Laboratory for Water Environment and Marine Biological Resources Protection, College of Life and Environmental Science, Wenzhou University, Wenzhou 325000, China; (M.H.); (A.X.); (W.C.); (M.Z.); (J.W.); (T.S.); (C.C.)
| | - Cifeng Cai
- Zhejiang Provincial Key Laboratory for Water Environment and Marine Biological Resources Protection, College of Life and Environmental Science, Wenzhou University, Wenzhou 325000, China; (M.H.); (A.X.); (W.C.); (M.Z.); (J.W.); (T.S.); (C.C.)
| | - Wenqi Jin
- Department of Anorectal Surgery, Shanghai Municipal Hospital of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 200071, China;
| | - Meiliang Zhou
- Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing 100081, China;
| | - Yueling Liao
- Zhejiang Provincial Key Laboratory for Water Environment and Marine Biological Resources Protection, College of Life and Environmental Science, Wenzhou University, Wenzhou 325000, China; (M.H.); (A.X.); (W.C.); (M.Z.); (J.W.); (T.S.); (C.C.)
| | - Zhiyong Liao
- Zhejiang Provincial Key Laboratory for Water Environment and Marine Biological Resources Protection, College of Life and Environmental Science, Wenzhou University, Wenzhou 325000, China; (M.H.); (A.X.); (W.C.); (M.Z.); (J.W.); (T.S.); (C.C.)
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13
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Zhou H, Cao L, Wang C, Fang C, Wu H, Liu C. miR-877-3p inhibits tumor growth and angiogenesis of osteosarcoma through Fibroblast Growth Factor 2 signaling. Bioengineered 2021; 13:8174-8186. [PMID: 34738872 PMCID: PMC9162015 DOI: 10.1080/21655979.2021.1982305] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
Osteosarcoma (OS) is the most common high-grade malignant bone tumor in teenagers. MicroRNAs can function as posttranscriptional regulators of gene expression, playing critical roles in cancer dev-877-3p in OS. Quantitative real-time RT-PCR was carried out for detecting miR-877-3p expression in OS. The effects of miR-877-3p on proliferation was analyzed via MTT, colony formation, and flow cytometry assays. Angiogenesis of endothelial cells were investigated by wound healing and tube formation assay. Gene profiling based on PCR array and luciferase reporter assay were conducted to determine target genes of miR-877-3p. In-vivo study was used to determine the effects of miR-877-3p on the tumor growth. The expression of miR-877-3p was markedly downregulated in OS tissues and cell lines. Low expression of miR-877-3p predicts poor prognosis of OS patients. miR-877-3p overexpression was found to inhibit the proliferation of OS cell lines. The angiogenesis assays showed that miR-877-3p attenuated the angiogenesis. Further mechanism studies showed that miR-877-3p can reduce (Fibroblast Growth Factor 2) FGF2 expression in OS cells by binding to the 3’UTR end of FGF2. Moreover, increased expression of miR-877-3p was responsible for the inhibition of tumor growth and angiogenesis. Taken together, our findings indicated that miR-877-3p might exhibit tumor suppressive role by targeting FGF2 signaling, which may serve as potential target for OS.
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Affiliation(s)
- Hailin Zhou
- Department of Orthopedics, Qingpu Branch of Zhongshan Hospital, Fudan University, Shanghai, China
| | - Lei Cao
- Department of Orthopedics, Shanghai Songjiang District Central Hospital, Shanghai, China
| | - Cheng Wang
- Department of Orthopedics, Shanghai Songjiang District Central Hospital, Shanghai, China.,Department of Radiology, Shanghai Songjiang District Central Hospital, Shanghai, China
| | - Chi Fang
- Department of Gynecologic Oncology, Fudan University, Shanghai Cancer Center, Shanghai, China
| | - HaiHui Wu
- Department of Orthopedics, Qingpu Branch of Zhongshan Hospital, Fudan University, Shanghai, China
| | - Chao Liu
- Department of Radiology, Shanghai Songjiang District Central Hospital, Shanghai, China
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14
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Iwamoto N, Furukawa K, Endo Y, Shimizu T, Sumiyoshi R, Umeda M, Koga T, Kawashiri SY, Igawa T, Ichinose K, Tamai M, Origuchi T, Kawakami A. Methotrexate Alters the Expression of microRNA in Fibroblast-like Synovial Cells in Rheumatoid Arthritis. Int J Mol Sci 2021; 22:ijms222111561. [PMID: 34768991 PMCID: PMC8584010 DOI: 10.3390/ijms222111561] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2021] [Revised: 10/21/2021] [Accepted: 10/22/2021] [Indexed: 12/15/2022] Open
Abstract
We aimed to investigate the effect of methotrexate (MTX) on microRNA modulation in rheumatoid arthritis fibroblast-like synovial cells (RA-FLS). RA-FLS were treated with MTX for 48 h. We then performed miRNA array analysis to investigate differentially expressed miRNAs. Transfection with miR-877-3p precursor and inhibitor were used to investigate the functional role of miR-877-3p in RA-FLS. Gene ontology analysis was used to investigate the cellular processes involving miR-877-3p. The production of cytokines/chemokines was screened by multiplex cytokine/chemokine bead assay and confirmed by ELISA and quantitative real-time PCR. The migratory and proliferative activities of RA-FLS were analyzed by wound healing assay and MKI-67 expression. MTX treatment altered the expression of 13 miRNAs (seven were upregulated and six were downregulated). Among them, quantitative real-time PCR confirmed that miR-877-3p was upregulated in response to MTX (1.79 ± 0.46-fold, p < 0.05). The possible target genes of miR-877-3p in RA-FLS revealed by the microarray analysis were correlated with biological processes. The overexpression of miR-877-3p decreased the production of GM-CSF and CCL3, and the overexpression of miR-877-3p inhibited migratory and proliferative activity. MTX altered the miR-877-3p expression on RA-FLS, and this alteration of miR-877-3p attenuated the abundant production of cytokines/chemokines and proliferative property of RA-FLS.
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Affiliation(s)
- Naoki Iwamoto
- Department of Immunology and Rheumatology, Division of Advanced Preventive Medical Sciences, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki 852-8102, Japan; (K.F.); (Y.E.); (T.S.); (R.S.); (M.U.); (T.K.); (S.-y.K.); (T.I.); (K.I.); (M.T.); (A.K.)
- Correspondence: ; Tel.: +81-95-819-7260; Fax: +81-95-849-7270
| | - Kaori Furukawa
- Department of Immunology and Rheumatology, Division of Advanced Preventive Medical Sciences, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki 852-8102, Japan; (K.F.); (Y.E.); (T.S.); (R.S.); (M.U.); (T.K.); (S.-y.K.); (T.I.); (K.I.); (M.T.); (A.K.)
| | - Yushiro Endo
- Department of Immunology and Rheumatology, Division of Advanced Preventive Medical Sciences, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki 852-8102, Japan; (K.F.); (Y.E.); (T.S.); (R.S.); (M.U.); (T.K.); (S.-y.K.); (T.I.); (K.I.); (M.T.); (A.K.)
| | - Toshimasa Shimizu
- Department of Immunology and Rheumatology, Division of Advanced Preventive Medical Sciences, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki 852-8102, Japan; (K.F.); (Y.E.); (T.S.); (R.S.); (M.U.); (T.K.); (S.-y.K.); (T.I.); (K.I.); (M.T.); (A.K.)
| | - Remi Sumiyoshi
- Department of Immunology and Rheumatology, Division of Advanced Preventive Medical Sciences, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki 852-8102, Japan; (K.F.); (Y.E.); (T.S.); (R.S.); (M.U.); (T.K.); (S.-y.K.); (T.I.); (K.I.); (M.T.); (A.K.)
| | - Masataka Umeda
- Department of Immunology and Rheumatology, Division of Advanced Preventive Medical Sciences, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki 852-8102, Japan; (K.F.); (Y.E.); (T.S.); (R.S.); (M.U.); (T.K.); (S.-y.K.); (T.I.); (K.I.); (M.T.); (A.K.)
| | - Tomohiro Koga
- Department of Immunology and Rheumatology, Division of Advanced Preventive Medical Sciences, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki 852-8102, Japan; (K.F.); (Y.E.); (T.S.); (R.S.); (M.U.); (T.K.); (S.-y.K.); (T.I.); (K.I.); (M.T.); (A.K.)
- Center for Bioinformatics and Molecular Medicine, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki 852-8102, Japan
| | - Shin-ya Kawashiri
- Department of Immunology and Rheumatology, Division of Advanced Preventive Medical Sciences, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki 852-8102, Japan; (K.F.); (Y.E.); (T.S.); (R.S.); (M.U.); (T.K.); (S.-y.K.); (T.I.); (K.I.); (M.T.); (A.K.)
- Division of Advanced Preventive Medical Sciences, Department of Community Medicine, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki 852-8102, Japan
| | - Takashi Igawa
- Department of Immunology and Rheumatology, Division of Advanced Preventive Medical Sciences, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki 852-8102, Japan; (K.F.); (Y.E.); (T.S.); (R.S.); (M.U.); (T.K.); (S.-y.K.); (T.I.); (K.I.); (M.T.); (A.K.)
| | - Kunihiro Ichinose
- Department of Immunology and Rheumatology, Division of Advanced Preventive Medical Sciences, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki 852-8102, Japan; (K.F.); (Y.E.); (T.S.); (R.S.); (M.U.); (T.K.); (S.-y.K.); (T.I.); (K.I.); (M.T.); (A.K.)
| | - Mami Tamai
- Department of Immunology and Rheumatology, Division of Advanced Preventive Medical Sciences, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki 852-8102, Japan; (K.F.); (Y.E.); (T.S.); (R.S.); (M.U.); (T.K.); (S.-y.K.); (T.I.); (K.I.); (M.T.); (A.K.)
| | - Tomoki Origuchi
- Department of Physical Therapy, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki 852-8102, Japan;
| | - Atsushi Kawakami
- Department of Immunology and Rheumatology, Division of Advanced Preventive Medical Sciences, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki 852-8102, Japan; (K.F.); (Y.E.); (T.S.); (R.S.); (M.U.); (T.K.); (S.-y.K.); (T.I.); (K.I.); (M.T.); (A.K.)
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15
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CircRNA_0079586 and circRNA_RanGAP1 are involved in the pathogenesis of intracranial aneurysms rupture by regulating the expression of MPO. Sci Rep 2021; 11:19800. [PMID: 34611229 PMCID: PMC8492745 DOI: 10.1038/s41598-021-99062-w] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Accepted: 06/30/2021] [Indexed: 11/09/2022] Open
Abstract
Several circRNAs have been reported to be dysregulated in human endothelial cells through sponging miRNAs. Previous reports demonstrated that MPO not only contributed to the formation and rupture of cerebral aneurysm but was also correlated with the degenerative remodeling predisposition to saccular intracranial aneurysm wall rupture, although its underlying mechanisms remain to be explored. Microarray screening was performed to compare the differential expression of circRNAs in the endothelial cells collected from UIAs and RIAs patients. Luciferase assays were used to explore the regulatory relationship between circRNAs and miRNAs, and between miRNAs and their target genes. Microarray screening analysis found a batch of up-regulated circRNAs in the endothelial cells harvested from RIAs patients, including circRNA-0079586 and circRNA-RanGAP1. Luciferase assays revealed the suppressive role of miR-183-5p/miR-877-3p in the expression of circRNA-0079586/circRNA-RanGAP1/MPO. And the expression of circRNA-0079586 and circRNA-RanGAP1 was respectively suppressed by the overexpression of miR-183-5p and miR-877-3p. And both the transfection of miR-183-5p and miR-877-3p mimics suppressed the relative expression level of MPO mRNA. The expression of circRNA-0079586, circRNA-RanGAP1 and MPO was significantly activated in the endothelial cells collected from RIAs patients when compared with UIAs patients, whereas the expression of miR-183-5p and miR-877-3p was remarkably suppressed in the endothelial cells collected from RIAs patients when compared with UIAs patients. We further altered the expression of circRNA-0079586 and circRNA-RanGAP1 using siRNA and overexpression in HUVECS, and the expression of circRNA-0079586 and circRNA-RanGAP1 was significantly and negatively correlated with the expression of miR-183-5p and miR-877-3p, but positively correlated with the expression of MPO under different conditions. In this study, we established two MPO-modulating signaling pathways of circRNA_0079586/miR-183-5p/MPO and circRNA_RanGAP1/miR-877-3p/MPO. These two signaling pathways are involved in the pathogenesis of intracranial aneurysms rupture.
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16
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Splice and Dice: Intronic microRNAs, Splicing and Cancer. Biomedicines 2021; 9:biomedicines9091268. [PMID: 34572454 PMCID: PMC8465124 DOI: 10.3390/biomedicines9091268] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Revised: 09/13/2021] [Accepted: 09/16/2021] [Indexed: 12/17/2022] Open
Abstract
Introns span only a quarter of the human genome, yet they host around 60% of all known microRNAs. Emerging evidence indicates the adaptive advantage of microRNAs residing within introns is attributed to their complex co-regulation with transcription and alternative splicing of their host genes. Intronic microRNAs are often co-expressed with their host genes, thereby providing functional synergism or antagonism that is exploited or decoupled in cancer. Additionally, intronic microRNA biogenesis and the alternative splicing of host transcript are co-regulated and intertwined. The importance of intronic microRNAs is under-recognized in relation to the pathogenesis of cancer.
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17
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Linc00941 regulates esophageal squamous cell carcinoma via functioning as a competing endogenous RNA for miR-877-3p to modulate PMEPA1 expression. Aging (Albany NY) 2021; 13:17830-17846. [PMID: 34254950 PMCID: PMC8312468 DOI: 10.18632/aging.203286] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Accepted: 02/01/2021] [Indexed: 12/13/2022]
Abstract
Esophageal squamous cell carcinoma (ESCC) represents one of the most common malignancies and is the fifth leading cause of cancer-related deaths. Long intergenic non-coding RNAs (lincRNAs) have been suggested to be dysregulated in various types of cancers, and a growing number of lincRNAs have been implicated to be functional in the ESCC progression. In this study, we examined the role of linc00941 in the ESCC progression and explored the underlying molecular mechanisms. The bioinformatics analysis identified the up-regulation of linc00941 in the ESCC tissues. Further in vitro studies showed that linc00941 was up-regulated in ESCC cell lines. The loss-of-function studies demonstrated that linc00941 knockdown suppressed ESCC cell proliferation, invasion and migration, and also suppressed the in vivo tumor growth. Furthermore, bioinformatics prediction along with luciferase reporter assay and RNA immunoprecipitation assay implied that linc00941 acted as a competing endogenous RNA for miR-877-3p, and linc00941 regulated ESCC cell progression via at least targeting miR-877-3p. Subsequently, miR-877-3p targeted prostate transmembrane protein, androgen induced 1 (PMEPA1) 3' untranslated region and repressed PMEPA1 expression in ESCC cells; overexpression of PMEPA1 attenuated the inhibitory effects of linc00941 knockdown on the ESCC cell progression. Linc00941 knockdown suppressed epithelial-mesenchymal transition (EMT) via targeting miR-877-3p/PMEPA1 axis in ESCC cells. In conclusion, our results indicated the oncogenic role of linc00941 in ESCC, and knockdown of linc00941 suppressed ESCC cell proliferation, invasion, migration and EMT via interacting with miR-877-3p/PMEPA1 axis.
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18
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Huang P, Li F, Mo Z, Geng C, Wen F, Zhang C, Guo J, Wu S, Li L, Brünner N, Stenvang J. A Comprehensive RNA Study to Identify circRNA and miRNA Biomarkers for Docetaxel Resistance in Breast Cancer. Front Oncol 2021; 11:669270. [PMID: 34055636 PMCID: PMC8162208 DOI: 10.3389/fonc.2021.669270] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Accepted: 04/26/2021] [Indexed: 12/14/2022] Open
Abstract
To investigate the relationship between non-coding RNAs [especially circular RNAs (circRNAs)] and docetaxel resistance in breast cancer, and to find potential predictive biomarkers for taxane-containing therapies, we have performed transcriptome and microRNA (miRNA) sequencing for two established docetaxel-resistant breast cancer (DRBC) cell lines and their docetaxel-sensitive parental cell lines. Our analyses revealed differences between circRNA signatures in the docetaxel-resistant and -sensitive breast cancer cells, and discovered circRNAs generated by multidrug-resistance genes in taxane-resistant cancer cells. In DRBC cells, circABCB1 was identified and validated as a circRNA that is strongly up-regulated, whereas circEPHA3.1 and circEPHA3.2 are strongly down-regulated. Furthermore, we investigated the potential functions of these circRNAs by bioinformatics analysis, and miRNA analysis was performed to uncover potential interactions between circRNAs and miRNAs. Our data showed that circABCB1, circEPHA3.1 and circEPHA3.2 may sponge up eight significantly differentially expressed miRNAs that are associated with chemotherapy and contribute to docetaxel resistance via the PI3K-Akt and AGE-RAGE signaling pathways. We also integrated differential expression data of mRNA, long non-coding RNA, circRNA, and miRNA to gain a global profile of multi-level RNA changes in DRBC cells, and compared them with changes in DNA copy numbers in the same cell lines. We found that Chromosome 7 q21.12-q21.2 was a common region dominated by multi-level RNA overexpression and DNA amplification, indicating that overexpression of the RNA molecules transcribed from this region may result from DNA amplification during stepwise exposure to docetaxel. These findings may help to further our understanding of the mechanisms underlying docetaxel resistance in breast cancer.
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Affiliation(s)
| | - Fengyu Li
- BGI Genomics, BGI-Shenzhen, Shenzhen, China
| | | | | | - Fang Wen
- MGI, BGI-Shenzhen, Shenzhen, China
| | | | - Jia Guo
- BGI, BGI-Shenzhen, Shenzhen, China
| | - Song Wu
- Shenzhen Luohu Hospital Group, The Affiliated Luohu Hospital of Shenzhen University, Shenzhen, China
| | - Lin Li
- BGI Genomics, BGI-Shenzhen, Shenzhen, China.,National Research Center for Translational Medicine, National Key Scientific Infrastructure for Translational Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Nils Brünner
- Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Jan Stenvang
- Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
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19
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Mendaza S, Fernández-Irigoyen J, Santamaría E, Arozarena I, Guerrero-Setas D, Zudaire T, Guarch R, Vidal A, Salas JS, Matias-Guiu X, Ausín K, Gil C, Hernández-Alcoceba R, Martín-Sánchez E. Understanding the Molecular Mechanism of miR-877-3p Could Provide Potential Biomarkers and Therapeutic Targets in Squamous Cell Carcinoma of the Cervix. Cancers (Basel) 2021; 13:cancers13071739. [PMID: 33917510 PMCID: PMC8038805 DOI: 10.3390/cancers13071739] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Accepted: 03/31/2021] [Indexed: 12/12/2022] Open
Abstract
No therapeutic targets and molecular biomarkers are available in cervical cancer (CC) management. In other cancer types, micro-RNA-877-3p (miR-877-3p) has been associated with events relevant for CC development. Thus, we aimed to determine miR-877-3p role in CC. miR-877-3p levels were examined by quantitative-PCR in 117 cervical lesions and tumors. Effects on CC cell proliferation, migration, and invasion were evaluated upon anti-miR-877-3p transfection. miR-877-3p dependent molecular mechanism was comprehensively explored by proteomics, dual-luciferase reporter assay, western blot, and immunohistochemistry. Cervical tumors expressed higher miR-877-3p levels than benign lesions. miR-877-3p promoted CC cell migration and invasion, at least partly by modulating cytoskeletal protein folding through the chaperonin-containing T-complex protein 1 complex. Notably, miR-877-3p silencing synergized with paclitaxel. Interestingly, miR-877-3p downregulated the levels of an in silico-predicted target, ZNF177, whose expression and subcellular location significantly distinguished high-grade squamous intraepithelial lesions (HSILs) and squamous cell carcinomas of the cervix (SCCCs). Cytoplasmic ZNF177 was significantly associated with worse progression-free survival in SCCC. Our results suggest that: (i) miR-877-3p is a potential therapeutic target whose inhibition improves paclitaxel effects; (ii) the expression and location of its target ZNF177 could be diagnostic biomarkers between HSIL and SCCC; and (iii) cytoplasmic ZNF177 is a poor-prognosis biomarker in SCCC.
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Affiliation(s)
- Saioa Mendaza
- Molecular Pathology of Cancer Group, Navarrabiomed, Complejo Hospitalario de Navarra (CHN), Universidad Pública de Navarra (UPNA), Instituto de Investigación Sanitaria de Navarra (IdiSNA), Irunlarrea 3, 31008 Pamplona, Spain; (S.M.); (D.G.-S.)
| | - Joaquín Fernández-Irigoyen
- Proteored-ISCIII, Proteomics Unit, Navarrabiomed, Complejo Hospitalario de Navarra (CHN), Universidad Pública de Navarra (UPNA), Instituto de Investigación Sanitaria de Navarra (IdiSNA), Irunlarrea 3, 31008 Pamplona, Spain; (J.F.-I.); (E.S.); (K.A.)
| | - Enrique Santamaría
- Proteored-ISCIII, Proteomics Unit, Navarrabiomed, Complejo Hospitalario de Navarra (CHN), Universidad Pública de Navarra (UPNA), Instituto de Investigación Sanitaria de Navarra (IdiSNA), Irunlarrea 3, 31008 Pamplona, Spain; (J.F.-I.); (E.S.); (K.A.)
| | - Imanol Arozarena
- Cancer Cell Signalling Group, Navarrabiomed, Complejo Hospitalario de Navarra (CHN), Universidad Pública de Navarra (UPNA), Instituto de Investigación Sanitaria de Navarra (IdiSNA), Irunlarrea 3, 31008 Pamplona, Spain;
| | - David Guerrero-Setas
- Molecular Pathology of Cancer Group, Navarrabiomed, Complejo Hospitalario de Navarra (CHN), Universidad Pública de Navarra (UPNA), Instituto de Investigación Sanitaria de Navarra (IdiSNA), Irunlarrea 3, 31008 Pamplona, Spain; (S.M.); (D.G.-S.)
- Department of Pathology, Complejo Hospitalario de Navarra (CHN), Irunlarrea 3, 31008 Pamplona, Spain; (T.Z.); (R.G.)
| | - Tamara Zudaire
- Department of Pathology, Complejo Hospitalario de Navarra (CHN), Irunlarrea 3, 31008 Pamplona, Spain; (T.Z.); (R.G.)
| | - Rosa Guarch
- Department of Pathology, Complejo Hospitalario de Navarra (CHN), Irunlarrea 3, 31008 Pamplona, Spain; (T.Z.); (R.G.)
| | - August Vidal
- Department of Pathology, Hospital Universitari de Bellvitge, IDIBELL, Carrer de la Feixa Llarga, 08907 L’Hospitalet de Llobregat, Spain; (A.V.); (X.M.-G.)
- CIBERONC, Centro de Investigación Biomédica en Red—Cáncer, 28029 Madrid, Spain
| | - José-Santos Salas
- Department of Pathology, Complejo Asistencial Universitario, Altos de Nava, 24071 León, Spain;
| | - Xavier Matias-Guiu
- Department of Pathology, Hospital Universitari de Bellvitge, IDIBELL, Carrer de la Feixa Llarga, 08907 L’Hospitalet de Llobregat, Spain; (A.V.); (X.M.-G.)
- CIBERONC, Centro de Investigación Biomédica en Red—Cáncer, 28029 Madrid, Spain
- Department of Pathology and Molecular Genetics, Hospital Universitari Arnau de Vilanova, University of Lleida, Alcalde Rovira Roure 80, 25198 Lleida, Spain
| | - Karina Ausín
- Proteored-ISCIII, Proteomics Unit, Navarrabiomed, Complejo Hospitalario de Navarra (CHN), Universidad Pública de Navarra (UPNA), Instituto de Investigación Sanitaria de Navarra (IdiSNA), Irunlarrea 3, 31008 Pamplona, Spain; (J.F.-I.); (E.S.); (K.A.)
| | - Carmen Gil
- Microbial Pathogenesis Group, Navarrabiomed, Complejo Hospitalario de Navarra (CHN), Universidad Pública de Navarra (UPNA), Instituto de Investigación Sanitaria de Navarra (IdiSNA), Irunlarrea 3, 31008 Pamplona, Spain;
| | - Rubén Hernández-Alcoceba
- Gene Therapy Program, Center for Applied Medical Research (CIMA), University of Navarra, Instituto de Investigación Sanitaria de Navarra (IdiSNA), Pío XII 55, 31008 Pamplona, Spain;
| | - Esperanza Martín-Sánchez
- Molecular Pathology of Cancer Group, Navarrabiomed, Complejo Hospitalario de Navarra (CHN), Universidad Pública de Navarra (UPNA), Instituto de Investigación Sanitaria de Navarra (IdiSNA), Irunlarrea 3, 31008 Pamplona, Spain; (S.M.); (D.G.-S.)
- Correspondence:
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20
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Guo T, Wang W, Ji Y, Zhang M, Xu G, Lin S. LncRNA PROX1-AS1 Facilitates Gastric Cancer Progression via miR-877-5p/PD-L1 Axis. Cancer Manag Res 2021; 13:2669-2680. [PMID: 33776485 PMCID: PMC7989960 DOI: 10.2147/cmar.s275352] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Accepted: 12/26/2020] [Indexed: 12/11/2022] Open
Abstract
Introduction Growing evidences imply that multiple long non-coding RNAs (lncRNAs) play a significant role in the treatment of cancer. Therefore, it is of great significance to discover new biomarkers or therapeutic targets of gastric cancer (GC). However, the potential molecular mechanism of lncPROX1-AS1 in GC remains unknown. The objective of current study is to investigate the effect of PROX1-AS1 in GC. Methods Thus, we detect that PROX1-AS1 is over-expressed in tissues and cell lines of GC using qRT-PCR analysis. CCK-8, colony formation, flow cytometry, wounding healing and transwell analyses were performed to explore the effect of PROX1-AS1 on GC malignant behaviors. Results It is further disclosed that silencing of PROX1-AS1 represses cell proliferation, migration, and invasion, whereas promotes cell apoptosis in GC. Bioinformatics analysis suggests that miR-877-5p is negatively regulated by PROX1-AS1 and ectopic of miR-877-5p alleviates the malignant behaviors of GC. Subsequently, miR-877-5p suppresses the activity of PD-L1-3ʹ UTR. At last, rescue assays demonstrated that the GC progression is suppressed by sh-PROX1-AS1 and facilitated on account of miR-877-5p inhibitors and then is retrieved by sh-PD-L1. Discussion Our findings reveal that PROX1-AS1 exerts its role via miR-877-5p/PD-L1 axis in the GC progression, suggesting that PROX1-AS1 may represent a new therapeutic target for the diagnosis and treatment of GC patients.
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Affiliation(s)
- TianWei Guo
- Department of Pathology, Changshu Hospital Affiliated to Nanjing University of Chinese Medicine, Changshu, Jiangsu, People's Republic of China
| | - Wei Wang
- Department of Pathology, The Affiliated Obstetrics and Gynecology Hospital of Nanjing Medical University, Nanjing Maternity and Child Health Care Hospital, Nanjing, Jiangsu, People's Republic of China
| | - YueXia Ji
- Department of Pathology, Changshu Hospital Affiliated to Nanjing University of Chinese Medicine, Changshu, Jiangsu, People's Republic of China
| | - Min Zhang
- Department of Pathology, Children's Hospital Affiliated to Soochow University, Suzhou, Jiangsu, People's Republic of China
| | - GuoYing Xu
- School of Medical Technology, Jiangsu College of Nursing, Huai'an, Jiangsu, People's Republic of China
| | - Sen Lin
- The Affiliated Huai'an Hospital of Xuzhou Medical University and the Second People's Hospital of Huai'an, Huai'an, Jiangsu, People's Republic of China
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Xu W, Che DD, Chen L, Lv SQ, Su J, Tan J, Liu Q, Pan YW. UBE2R2-AS1 Inhibits Xenograft Growth in Nude Mice and Correlates with a Positive Prognosis in Glioma. J Mol Neurosci 2021; 71:1605-1613. [PMID: 33528791 DOI: 10.1007/s12031-021-01793-y] [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: 09/24/2020] [Accepted: 01/04/2021] [Indexed: 10/22/2022]
Abstract
Our previous study showed that the lncRNA UBE2R2-AS1 inhibits the growth and invasion of glioma cells and promotes apoptosis through the miR-877-3p/TLR4 pathway. In this study, it was further found that the expression of UBE2R2-AS1 in glioma tissues was decreased significantly, and gradually decreased with increasing clinical stage. Chi-square analysis showed that the expression of UBE2R2-AS1 was significantly correlated with the WHO stage of tumor and epilepsy. Using Kaplan-Meier univariate survival analysis, it was found that the expression of UBE2R2-AS1 correlated positively with the overall survival of patients with glioma, while multiple Cox regression analysis showed that the expression of UBE2R2-AS1 correlated positively with the overall survival of patients with glioma as a protective factor for glioma prognosis. The analysis of data from TCGA also showed that patients with high UBE2R2-AS1 levels or low miR-877-3p expression were more likely to have good survival outcomes. Further construction of a glioma xenograft model in nude mice showed that UBE2R2-AS1 overexpression inhibited the growth of tumors, and the inhibition of miR-877-3p expression had a similar effect. Simultaneous UBE2R2-AS1 overexpression and miR-877-3p inhibition further decreased the growth rate of tumors in nude mice. Taken together, the results of our study suggest that UBE2R2-AS1 is an important tumor suppressor gene in glioma, which may be a good marker and treatment target for the clinical detection of glioma.
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Affiliation(s)
- Wu Xu
- Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha, 410008, Hunan, China.,Department of Neurosurgery, Affiliated Hospital of Jiujiang University, Jiujiang, 332000, Jiangxi, China
| | - Dan-Dan Che
- Department of Intensive Care Unit, Third People's Hospital of Shenzhen, The Second Affiliated Hospital of Southern University of Science and Technology, Shenzhen, 518100, Guangdong, China
| | - Liang Chen
- Department of Neurosurgery, Affiliated Hospital of Jiujiang University, Jiujiang, 332000, Jiangxi, China
| | - Sheng-Qing Lv
- Department of Neurosurgery, Xinqiao Hospital, Third Military Medical University, Chongqing, 400037, China
| | - Jun Su
- Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha, 410008, Hunan, China
| | - Jun Tan
- Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha, 410008, Hunan, China
| | - Qing Liu
- Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha, 410008, Hunan, China.
| | - Ya-Wen Pan
- Department of Neurosurgery, The Second Hospital of Lanzhou University, Lanzhou, 730030, Gansu, China.
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22
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Potter ML, Hill WD, Isales CM, Hamrick MW, Fulzele S. MicroRNAs are critical regulators of senescence and aging in mesenchymal stem cells. Bone 2021; 142:115679. [PMID: 33022453 PMCID: PMC7901145 DOI: 10.1016/j.bone.2020.115679] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/03/2020] [Revised: 07/16/2020] [Accepted: 07/28/2020] [Indexed: 01/10/2023]
Abstract
MicroRNAs (miRNAs) have recently come under scrutiny for their role in various age-related diseases. Similarly, cellular senescence has been linked to disease and aging. MicroRNAs and senescence likely play an intertwined role in driving these pathologic states. In this review, we present the connection between these two drivers of age-related disease concerning mesenchymal stem cells (MSCs). First, we summarize key miRNAs that are differentially expressed in MSCs and other musculoskeletal lineage cells during senescence and aging. Additionally, we also reviewed miRNAs that are regulated via traditional senescence-associated secretory phenotype (SASP) cytokines in MSC. Lastly, we summarize miRNAs that have been found to target components of the cell cycle arrest pathways inherently activated in senescence. This review attempts to highlight potential miRNA targets for regenerative medicine applications in age-related musculoskeletal disease.
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Affiliation(s)
- Matthew L Potter
- Department of Orthopedics, Augusta University, Augusta, GA, United States of America
| | - William D Hill
- Medical University of South Carolina, Charleston, SC 29403, United States of America; Ralph H Johnson Veterans Affairs Medical Center, Charleston, SC, 29403, United States of America
| | - Carlos M Isales
- Department of Orthopedics, Augusta University, Augusta, GA, United States of America; Department of Medicine, Augusta University, Augusta, GA, United States of America; Institute of Healthy Aging, Augusta University, Augusta, GA, United States of America
| | - Mark W Hamrick
- Department of Orthopedics, Augusta University, Augusta, GA, United States of America; Institute of Healthy Aging, Augusta University, Augusta, GA, United States of America; Department of Cell Biology and Anatomy, Augusta University, Augusta, GA, United States of America
| | - Sadanand Fulzele
- Department of Orthopedics, Augusta University, Augusta, GA, United States of America; Department of Medicine, Augusta University, Augusta, GA, United States of America; Institute of Healthy Aging, Augusta University, Augusta, GA, United States of America; Department of Cell Biology and Anatomy, Augusta University, Augusta, GA, United States of America.
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23
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Zhao X, Su L, He X, Zhao B, Miao J. Long noncoding RNA CA7-4 promotes autophagy and apoptosis via sponging MIR877-3P and MIR5680 in high glucose-induced vascular endothelial cells. Autophagy 2020; 16:70-85. [PMID: 30957640 PMCID: PMC6984615 DOI: 10.1080/15548627.2019.1598750] [Citation(s) in RCA: 80] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2018] [Revised: 03/03/2019] [Accepted: 03/15/2019] [Indexed: 01/08/2023] Open
Abstract
Vascular endothelial cells (VECs) that form the inner wall of blood vessels can be injured by high glucose-induced autophagy and apoptosis. Although the role of long noncoding RNA in regulating cell fate has received widespread attention, long noncoding RNAs (lncRNAs) that can both regulate autophagy and apoptosis need to be discovered. In this study, we identified that a small chemical molecule, 3-benzyl-5-([2-nitrophenoxy] methyl)-dihydrofuran-2(3H)-one (3BDO), synthesized by us, could inhibit VEC autophagy and apoptosis induced by a high concentration of glucose. To find new lncRNAs that regulate autophagy and apoptosis in VECs, we performed lncRNA microarray analysis. We found and verified an upregulated lncRNA named CA7-4 that was induced by a high concentration of glucose could be downregulated by 3BDO most obviously among all of the detected lncRNAs. Meanwhile, we investigated the mechanism of CA7-4 in regulating VEC autophagy and apoptosis. The results showed that CA7-4 facilitated endothelial autophagy and apoptosis as a competing endogenous RNA (ceRNA) by decoying MIR877-3P and MIR5680. Further study elucidated that MIR877-3P could trigger the decrease of CTNNBIP1 (catenin beta interacting protein 1) by combining with its 3' UTR and then upregulating CTNNB1 (catenin beta 1); MIR5680 inhibited the phosphorylation of AMP-activated protein kinase (AMPK) by targeting and decreasing DPP4 (dipeptidyl peptidase 4). Therefore, CA7-4, MIR877-3P and MIR5680 represent new signal pathways that regulate VEC autophagy and apoptosis under the high-glucose condition.Abbreviations: 3BDO: 3-benzyl-5-([2-nitrophenoxy] methyl)-dihydrofuran-2(3H)-one; 3' UTR: 3' untranslated region; AGO2: argonaute RISC catalytic component 2; AMPK: AMP-activated protein kinase/protein kinase AMP-activated; BAX/BCL2L4: BCL2 associated X, apoptosis regulator; BCL2: BCL2 apoptosis regulator; CASP3: caspase 3; ceRNA: competing endogenous RNA; CTNNB1: catenin beta 1; CTNNBIP1/ICAT: catenin beta interacting protein 1; DPP4: dipeptidyl peptidase 4; FGF2/FGF-2: fibroblast growth factor 2; HG: high concentration glucose (30 mM glucose); lncRNA: long noncoding RNA; MAP1LC3B/LC3B: microtubule associated protein 1 light chain 3 beta; miRNA: microRNA; MIR4778-3P: microRNA 4778-3p; MIR561-3P: microRNA 561-3p; MIR5680: microRNA 5680; MIR877-3P: microRNA 877-3p; MTOR: mechanistic target of rapamycin kinase; Mut: mutant; NC: negative control; NG: normal concentration glucose (5.5 mM glucose); PARP1: poly(ADP-ribose) polymerase 1; qPCR: quantitative real-time PCR; RNA-FISH: RNA-fluorescence in situ hybridization; ROS: reactive oxygen species; RT-PCR: reverse transcription polymerase chain reaction; siRNA: small interfering RNA; SQSTM1: sequestosome 1; TGFB2-OT1: TGFB2 overlapping transcript 1; TUNEL: terminal deoxynucleotidyl transferase dUTP nick end labeling; VECs: vascular endothelial cells; WT: wild type.
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Affiliation(s)
- Xuan Zhao
- Shandong Provincial Key Laboratory of Animal Cells and Developmental Biology, School of Life Science, Shandong University, Jinan, P. R. China
| | - Le Su
- Shandong Provincial Key Laboratory of Animal Cells and Developmental Biology, School of Life Science, Shandong University, Jinan, P. R. China
| | - Xiaoying He
- Shandong Provincial Key Laboratory of Animal Cells and Developmental Biology, School of Life Science, Shandong University, Jinan, P. R. China
| | - Baoxiang Zhao
- Institute of Organic Chemistry, School of Chemistry and Chemical Engineering, Shandong University, Jinan, P. R. China
| | - Junying Miao
- Shandong Provincial Key Laboratory of Animal Cells and Developmental Biology, School of Life Science, Shandong University, Jinan, P. R. China
- The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education and Chinese Ministry of Health, Shandong University Qilu Hospital, Jinan, P. R. China
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Lu J, Wang YH, Yoon C, Huang XY, Xu Y, Xie JW, Wang JB, Lin JX, Chen QY, Cao LL, Zheng CH, Li P, Huang CM. Circular RNA circ-RanGAP1 regulates VEGFA expression by targeting miR-877-3p to facilitate gastric cancer invasion and metastasis. Cancer Lett 2019; 471:38-48. [PMID: 31811909 DOI: 10.1016/j.canlet.2019.11.038] [Citation(s) in RCA: 173] [Impact Index Per Article: 34.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2019] [Revised: 11/26/2019] [Accepted: 11/30/2019] [Indexed: 12/29/2022]
Abstract
The biological functions of circular RNAs (circRNAs) in gastric cancer (GC) remain largely unexplored. Here, we identified that circ-RanGAP1 was significantly upregulated in both GC tissues and exosomes from the plasma of GC patients. High circ-RanGAP1 expression was closely associated with an advanced TNM stage, lymph node metastases, and worse survival. Inhibition of circ-RanGAP1 decreased GC cell invasion and migration in vitro. Overexpression of circ-RanGAP1 had the opposite effect. Additionally, circ-RanGAP1 silencing remarkably suppressed tumor growth and metastasis of GC in vivo. Mechanistically, circ-RanGAP1 sponged miR-877-3p to upregulate VEGFA expression. Overexpression of miR-877-3p reversed the biological functions mediated by circ-RanGAP1 in GC cells. Interestingly, we demonstrated that circ-RanGAP1 was upregulated in plasma exosomes from preoperative GC patients. More importantly, the plasma exosomes derived from these patients enhanced the migration and invasion potential of GC cells. Overall, the circ-RanGAP1-mediated miR-877-3p/VEGFA axis promotes GC progression. Our findings suggest that circ-RanGAP1 might act as a potential prognostic biomarker and therapeutic target for GC treatment.
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Affiliation(s)
- Jun Lu
- Department of Gastric Surgery, Fujian Medical University Union Hospital, Fuzhou, China; Department of General Surgery, Fujian Medical University Union Hospital, Fuzhou, China; Key Laboratory of Ministry of Education of Gastrointestinal Cancer, Fujian Medical University, Fuzhou, China
| | - Yao-Hui Wang
- Department of Gastric Surgery, Fujian Medical University Union Hospital, Fuzhou, China; Department of General Surgery, Fujian Medical University Union Hospital, Fuzhou, China; Key Laboratory of Ministry of Education of Gastrointestinal Cancer, Fujian Medical University, Fuzhou, China
| | - Changhwan Yoon
- Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Xiao-Yan Huang
- Department of Gastric Surgery, Fujian Medical University Union Hospital, Fuzhou, China; Department of General Surgery, Fujian Medical University Union Hospital, Fuzhou, China; Key Laboratory of Ministry of Education of Gastrointestinal Cancer, Fujian Medical University, Fuzhou, China
| | - Yu Xu
- Department of Pathology, The School of Basic Medical Sciences, Fujian Medical University, Fuzhou, China
| | - Jian-Wei Xie
- Department of Gastric Surgery, Fujian Medical University Union Hospital, Fuzhou, China; Department of General Surgery, Fujian Medical University Union Hospital, Fuzhou, China; Key Laboratory of Ministry of Education of Gastrointestinal Cancer, Fujian Medical University, Fuzhou, China
| | - Jia-Bin Wang
- Department of Gastric Surgery, Fujian Medical University Union Hospital, Fuzhou, China; Department of General Surgery, Fujian Medical University Union Hospital, Fuzhou, China; Key Laboratory of Ministry of Education of Gastrointestinal Cancer, Fujian Medical University, Fuzhou, China
| | - Jian-Xian Lin
- Department of Gastric Surgery, Fujian Medical University Union Hospital, Fuzhou, China; Department of General Surgery, Fujian Medical University Union Hospital, Fuzhou, China; Key Laboratory of Ministry of Education of Gastrointestinal Cancer, Fujian Medical University, Fuzhou, China
| | - Qi-Yue Chen
- Department of Gastric Surgery, Fujian Medical University Union Hospital, Fuzhou, China; Department of General Surgery, Fujian Medical University Union Hospital, Fuzhou, China; Key Laboratory of Ministry of Education of Gastrointestinal Cancer, Fujian Medical University, Fuzhou, China
| | - Long-Long Cao
- Department of Gastric Surgery, Fujian Medical University Union Hospital, Fuzhou, China; Department of General Surgery, Fujian Medical University Union Hospital, Fuzhou, China; Key Laboratory of Ministry of Education of Gastrointestinal Cancer, Fujian Medical University, Fuzhou, China
| | - Chao-Hui Zheng
- Department of Gastric Surgery, Fujian Medical University Union Hospital, Fuzhou, China; Department of General Surgery, Fujian Medical University Union Hospital, Fuzhou, China; Key Laboratory of Ministry of Education of Gastrointestinal Cancer, Fujian Medical University, Fuzhou, China.
| | - Ping Li
- Department of Gastric Surgery, Fujian Medical University Union Hospital, Fuzhou, China; Department of General Surgery, Fujian Medical University Union Hospital, Fuzhou, China; Key Laboratory of Ministry of Education of Gastrointestinal Cancer, Fujian Medical University, Fuzhou, China.
| | - Chang-Ming Huang
- Department of Gastric Surgery, Fujian Medical University Union Hospital, Fuzhou, China; Department of General Surgery, Fujian Medical University Union Hospital, Fuzhou, China; Key Laboratory of Ministry of Education of Gastrointestinal Cancer, Fujian Medical University, Fuzhou, China.
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Rahman MM, Brane AC, Tollefsbol TO. MicroRNAs and Epigenetics Strategies to Reverse Breast Cancer. Cells 2019; 8:cells8101214. [PMID: 31597272 PMCID: PMC6829616 DOI: 10.3390/cells8101214] [Citation(s) in RCA: 69] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2019] [Revised: 10/04/2019] [Accepted: 10/06/2019] [Indexed: 02/07/2023] Open
Abstract
Breast cancer is a sporadic disease with genetic and epigenetic components. Genomic instability in breast cancer leads to mutations, copy number variations, and genetic rearrangements, while epigenetic remodeling involves alteration by DNA methylation, histone modification and microRNAs (miRNAs) of gene expression profiles. The accrued scientific findings strongly suggest epigenetic dysregulation in breast cancer pathogenesis though genomic instability is central to breast cancer hallmarks. Being reversible and plastic, epigenetic processes appear more amenable toward therapeutic intervention than the more unidirectional genetic alterations. In this review, we discuss the epigenetic reprogramming associated with breast cancer such as shuffling of DNA methylation, histone acetylation, histone methylation, and miRNAs expression profiles. As part of this, we illustrate how epigenetic instability orchestrates the attainment of cancer hallmarks which stimulate the neoplastic transformation-tumorigenesis-malignancy cascades. As reversibility of epigenetic controls is a promising feature to optimize for devising novel therapeutic approaches, we also focus on the strategies for restoring the epistate that favor improved disease outcome and therapeutic intervention.
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Affiliation(s)
- Mohammad Mijanur Rahman
- Department of Biology, University of Alabama at Birmingham, 1300 University Boulevard, Birmingham, AL 35294, USA.
| | - Andrew C Brane
- Department of Biology, University of Alabama at Birmingham, 1300 University Boulevard, Birmingham, AL 35294, USA.
| | - Trygve O Tollefsbol
- Department of Biology, University of Alabama at Birmingham, 1300 University Boulevard, Birmingham, AL 35294, USA.
- Comprehensive Center for Healthy Aging, University of Alabama Birmingham, 1530 3rd Avenue South, Birmingham, AL 35294, USA.
- Comprehensive Cancer Center, University of Alabama Birmingham, 1802 6th Avenue South, Birmingham, AL 35294, USA.
- Nutrition Obesity Research Center, University of Alabama Birmingham, 1675 University Boulevard, Birmingham, AL 35294, USA.
- Comprehensive Diabetes Center, University of Alabama Birmingham, 1825 University Boulevard, Birmingham, AL 35294, USA.
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Bradley MW, Aiello KA, Ponnapalli SP, Hanson HA, Alter O. GSVD- and tensor GSVD-uncovered patterns of DNA copy-number alterations predict adenocarcinomas survival in general and in response to platinum. APL Bioeng 2019; 3:036104. [PMID: 31463421 PMCID: PMC6701977 DOI: 10.1063/1.5099268] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2019] [Accepted: 08/06/2019] [Indexed: 12/14/2022] Open
Abstract
More than a quarter of lung, uterine, and ovarian adenocarcinoma (LUAD, USEC, and OV) tumors are resistant to platinum drugs. Only recently and only in OV, patterns of copy-number alterations that predict survival in response to platinum were discovered, and only by using the tensor GSVD to compare Agilent microarray platform-matched profiles of patient-matched normal and primary tumor DNA. Here, we use the GSVD to compare whole-genome sequencing (WGS) and Affymetrix microarray profiles of patient-matched normal and primary LUAD, USEC, and OV tumor DNA. First, the GSVD uncovers patterns similar to one Agilent OV pattern, where a loss of most of the chromosome arm 6p combined with a gain of 12p encode for transformation. Like the Agilent OV pattern, the WGS LUAD and Affymetrix LUAD, USEC, and OV patterns are correlated with shorter survival, in general and in response to platinum. Like the tensor GSVD, the GSVD separates these tumor-exclusive genotypes from experimental inconsistencies. Second, by identifying the shorter survival phenotypes among the WGS- and Affymetrix-profiled tumors, the Agilent pattern proves to be a technology-independent predictor of survival, independent also of the best other indicator at diagnosis, i.e., stage. Third, like no other indicator, the pattern predicts the overall survival of OV patients experiencing progression-free survival, in general and in response to platinum. We conclude that comparative spectral decompositions, such as the GSVD and tensor GSVD, underlie a mathematically universal description of the relationships between a primary tumor's genotype and a patient's overall survival phenotype, which other methods miss.
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Affiliation(s)
| | | | - Sri Priya Ponnapalli
- Scientific Computing and Imaging Institute, University of Utah, Salt Lake City, Utah 84112, USA
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Li X, Luo S, Zhang J, Yuan Y, Jiang W, Zhu H, Ding X, Zhan L, Wu H, Xie Y, Song R, Pan Z, Lu Y. lncRNA H19 Alleviated Myocardial I/RI via Suppressing miR-877-3p/Bcl-2-Mediated Mitochondrial Apoptosis. MOLECULAR THERAPY-NUCLEIC ACIDS 2019; 17:297-309. [PMID: 31284127 PMCID: PMC6612907 DOI: 10.1016/j.omtn.2019.05.031] [Citation(s) in RCA: 76] [Impact Index Per Article: 15.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/15/2019] [Revised: 05/15/2019] [Accepted: 05/31/2019] [Indexed: 01/08/2023]
Abstract
Ischemic cardiac disease is the leading cause of morbidity and mortality in the world. Despite the great efforts and progress in cardiac research, the current treatment of cardiac ischemia reperfusion injury (I/RI) is still far from being satisfactory. This study was performed to investigate the role of long non-coding RNA (lncRNA) H19 in regulating myocardial I/RI. We found that H19 expression was downregulated in the I/R hearts of mice and cardiomyocytes treated with H2O2. Overexpression of H19 alleviated myocardial I/RI of mice and cardiomyocyte injury induced by H2O2. We found that H19 functioned as a competing endogenous RNA of miR-877-3p, which decreased the expression of miR-877-3p through the base-pairing mechanism. In parallel, miR-877-3p was upregulated in H2O2-treated cardiomyocytes and mouse ischemia reperfusion (I/R) hearts. miR-877-3p exacerbated myocardial I/RI and cardiomyocyte apoptosis. We further established Bcl-2 as a downstream target of miR-877-3p. miR-877-3p inhibited the mRNA and protein expression of Bcl-2. Furthermore, H19 decreased the Bcl-2/Bax ratio at mRNA and protein levels, cytochrome c release, and activation of caspase-9 and caspase-3 in myocardial I/RI mice, which were canceled by miR-877-3p. In summary, the H19/miR-877-3p/Bcl-2 pathway is involved in regulation of mitochondrial apoptosis during myocardial I/RI, which provided new insight into molecular mechanisms underlying regulation of myocardial I/RI.
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Affiliation(s)
- Xin Li
- Department of Pharmacology, State Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Medicine Research, Ministry of Education, College of Pharmacy, Harbin Medical University, Harbin, Heilongjiang 150081, P. R. China; Northern Translational Medicine Research and Cooperation Center, Heilongjiang Academy of Medical Sciences, Harbin Medical University, Harbin, Heilongjiang 150081, P. R. China
| | - Shenjian Luo
- Department of Pharmacology, State Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Medicine Research, Ministry of Education, College of Pharmacy, Harbin Medical University, Harbin, Heilongjiang 150081, P. R. China; Northern Translational Medicine Research and Cooperation Center, Heilongjiang Academy of Medical Sciences, Harbin Medical University, Harbin, Heilongjiang 150081, P. R. China
| | - Jifan Zhang
- Department of Pharmacology, State Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Medicine Research, Ministry of Education, College of Pharmacy, Harbin Medical University, Harbin, Heilongjiang 150081, P. R. China
| | - Yin Yuan
- Department of Pharmacology, State Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Medicine Research, Ministry of Education, College of Pharmacy, Harbin Medical University, Harbin, Heilongjiang 150081, P. R. China
| | - Wenmei Jiang
- Department of Pharmacology, State Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Medicine Research, Ministry of Education, College of Pharmacy, Harbin Medical University, Harbin, Heilongjiang 150081, P. R. China
| | - Haixia Zhu
- Department of Pharmacology, State Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Medicine Research, Ministry of Education, College of Pharmacy, Harbin Medical University, Harbin, Heilongjiang 150081, P. R. China
| | - Xin Ding
- Department of Pharmacology, State Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Medicine Research, Ministry of Education, College of Pharmacy, Harbin Medical University, Harbin, Heilongjiang 150081, P. R. China; Northern Translational Medicine Research and Cooperation Center, Heilongjiang Academy of Medical Sciences, Harbin Medical University, Harbin, Heilongjiang 150081, P. R. China
| | - Linfeng Zhan
- Department of Pharmacology, State Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Medicine Research, Ministry of Education, College of Pharmacy, Harbin Medical University, Harbin, Heilongjiang 150081, P. R. China
| | - Hao Wu
- Department of Pharmacology, State Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Medicine Research, Ministry of Education, College of Pharmacy, Harbin Medical University, Harbin, Heilongjiang 150081, P. R. China
| | - Yilin Xie
- Department of Pharmacology, State Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Medicine Research, Ministry of Education, College of Pharmacy, Harbin Medical University, Harbin, Heilongjiang 150081, P. R. China
| | - Rui Song
- Department of Pharmacology, State Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Medicine Research, Ministry of Education, College of Pharmacy, Harbin Medical University, Harbin, Heilongjiang 150081, P. R. China
| | - Zhenwei Pan
- Department of Pharmacology, State Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Medicine Research, Ministry of Education, College of Pharmacy, Harbin Medical University, Harbin, Heilongjiang 150081, P. R. China.
| | - Yanjie Lu
- Department of Pharmacology, State Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Medicine Research, Ministry of Education, College of Pharmacy, Harbin Medical University, Harbin, Heilongjiang 150081, P. R. China; Northern Translational Medicine Research and Cooperation Center, Heilongjiang Academy of Medical Sciences, Harbin Medical University, Harbin, Heilongjiang 150081, P. R. China.
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He G, Chen J, Huang D. miR-877-3p promotes TGF-β1-induced osteoblast differentiation of MC3T3-E1 cells by targeting Smad7. Exp Ther Med 2019; 18:312-319. [PMID: 31258667 DOI: 10.3892/etm.2019.7570] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2018] [Accepted: 04/05/2019] [Indexed: 01/09/2023] Open
Abstract
MicroRNAs (miRNAs) are emerging as important regulators of various physiological and pathological processes and may serve key roles in the maintenance of bone homeostasis via effects on osteoblast differentiation. The aim of the present study was to define the role of miR-877-3p in osteoblast differentiation using MC3T3-E1 cells, an osteoblast precursor cell line. It was demonstrated using RT-qPCR analysis that miR-877-3p was gradually increased in MC3T3-E1 cells during the osteoblastic differentiation induced by transforming growth factor (TGF)-β1. Gain-of-function and loss-of-function experiments revealed that the overexpression of miR-877-3p promoted the osteoblastic differentiation of MC3T3-E1 cells, whereas depletion of miR-877-3p inhibited this process in vitro and in vivo. Bioinformatics analysis and validation experiments demonstrated that Smad7, which acts as a negative regulator of osteogenesis, was a target of miR-877-3p. Furthermore, the overexpression of Smad7 partially reversed the osteoblastic differentiation of MC3T3-E1 cells induced by miR-877-3p. In conclusion, the results of the present study suggest that the miR-877-3p/Smad7 axis is associated with the osteoblastic differentiation of MC3T3-E1 cells and may indicate a potential therapeutic approach for osteogenesis disorders.
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Affiliation(s)
- Guisong He
- Department of Orthopedics, The Third School of Clinical Medicine, Southern Medical University, Guangzhou, Guangdong 510000, P.R. China.,Department of Orthopedics, Guangdong Provincial Second People's Hospital, Guangzhou, Guangdong 510220, P.R. China
| | - Jianming Chen
- Department of Orthopedics, The Central Hospital of Yongzhou City, Yongzhou, Hunan 425000, P.R. China
| | - Dong Huang
- Department of Orthopedics, The Third School of Clinical Medicine, Southern Medical University, Guangzhou, Guangdong 510000, P.R. China.,Department of Orthopedics, Guangdong Provincial Second People's Hospital, Guangzhou, Guangdong 510220, P.R. China
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Xu W, Hu GQ, Da Costa C, Tang JH, Li QR, Du L, Pan YW, Lv SQ. Long noncoding RNA UBE2R2-AS1 promotes glioma cell apoptosis via targeting the miR-877-3p/TLR4 axis. Onco Targets Ther 2019; 12:3467-3480. [PMID: 31123407 PMCID: PMC6511244 DOI: 10.2147/ott.s201732] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2019] [Accepted: 03/25/2019] [Indexed: 11/28/2022] Open
Abstract
Introduction: Brain glioma is the most common type of primary malignancy in the central nervous system (CNS), with high recurrence and mortality rate, especially glioblastoma (GBM). Recent evidence suggests a role for many long noncoding RNAs (lncRNAs) in the pathogenesis, proliferation, apoptosis, metastasis, and chemotherapeutic resistance of cancer cells. Although the functions of some lncRNAs in the occurrence and development of gliomas have been confirmed, detailed mechanisms of action are lacking. Furthermore, the biological roles of many other lncRNAs in glioma have not been reported at all. Methods: In this study, we identified a novel lncRNA, UBE2R2-AS1, which was dramatically downregulated in glioma compared with normal tissue, by performing microarray detection of six pairs of glioma samples and adjacent normal tissues. In vitro experiments demonstrated that UBE2R2-AS1 regulated glioma cell proliferation, apoptosis, and migration. Results: UBE2R2-AS1 acted as a competing endogenous RNA (ceRNA) to target Toll-like receptor 4 (TLR4) mRNA by binding to miR-877-3p. Furthermore, lncRNA UBE2R2-AS1 suppressed glioblastoma cell growth, migration, and invasion, as well as promoting cell apoptosis by targeting miR-877-3p/TLR4 directly. Conclusion: This information regarding UBE2R2-AS1 and its glioma-related molecular mechanisms will aid the future identification of new lncRNA-directed diagnostics and drug-targeting therapies.
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Affiliation(s)
- Wu Xu
- Department of Epidemiology and Health Statistics, Xiangya School of Public Health, Central South University, Changsha 410078, People's Republic of China
| | - Guo-Qing Hu
- Department of Epidemiology and Health Statistics, Xiangya School of Public Health, Central South University, Changsha 410078, People's Republic of China
| | - Clive Da Costa
- Adult Stem Cell Laboratory, The Francis Crick Institute, London NW1 1AT, UK
| | - Jun-Hai Tang
- Department of Neurosurgery, Xinqiao Hospital, Third Military Medical University, Chongqing 400037, People's Republic of China
| | - Qing-Rui Li
- Biobank of Institute of Pathology, Southwest Hospital, Third Military Medical University, Chongqing 400037, People's Republic of China
| | - Lei Du
- Department of Neurosurgery, The 42nd Hospital of the Chinese People's Liberation Army, Leshan City, Sichuan 614100, People's Republic of China
| | - Ya-Wen Pan
- Department of Neurosurgery, The Second Hospital of Lanzhou University, Lanzhou 730030, People's Republic of China
| | - Sheng-Qing Lv
- Department of Neurosurgery, Xinqiao Hospital, Third Military Medical University, Chongqing 400037, People's Republic of China
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31
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MicroRNAs in Smoking-Related Carcinogenesis: Biomarkers, Functions, and Therapy. J Clin Med 2018; 7:jcm7050098. [PMID: 29723992 PMCID: PMC5977137 DOI: 10.3390/jcm7050098] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2018] [Revised: 04/21/2018] [Accepted: 04/25/2018] [Indexed: 12/11/2022] Open
Abstract
Long-term heavy cigarette smoking is a well-known high-risk factor for carcinogenesis in various organs such as the head and neck, lungs, and urinary bladder. Furthermore, cigarette smoking can systemically accelerate aging, and as the result, promoting carcinogenesis via changing the host microenvironment. Various inflammatory factors, hormones, and chemical mediators induced by smoking mediate carcinoma-related molecules and induce carcinogenesis. MicroRNAs (miRNAs) are a family of short noncoding RNA molecules that bind to mRNAs and inhibit their expression. Cigarette smoke induces the expression of various miRNAs, many of which are known to function in the post-transcriptional silencing of anticancer molecules, thereby leading to smoking-induced carcinogenesis. Analysis of expression profiles of smoking-induced miRNAs can help identify biomarkers for the diagnosis and prognosis of smoking-related cancers and prediction of therapeutic responses, as well as revealing promising therapeutic targets. Here, we introduce the most recent and useful findings of miRNA analyses focused on lung cancer and urinary bladder cancer, which are strongly associated with cigarette smoking, and discuss the utility of miRNAs as clinical biomarkers.
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32
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Vaschetto LM. miRNA activation is an endogenous gene expression pathway. RNA Biol 2018; 15:826-828. [PMID: 29537927 PMCID: PMC6152443 DOI: 10.1080/15476286.2018.1451722] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2018] [Accepted: 03/07/2018] [Indexed: 12/27/2022] Open
Abstract
Transfection of small non-coding RNAs (sncRNAs) molecules has become a routine technique widely used for silencing gene expression by triggering post-transcriptional and transcriptional RNA interference (RNAi) pathways. Moreover, in the past decade, small activating (saRNA) sequences targeting promoter regions were also reported, thereby a RNA-based gene activation (RNAa) mechanism has been proposed. In this regard, Turner and colleagues recently discovered an endogenous microRNA (miRNA) which binds its promoter in order to upregulate its own expression. Interestingly, several miRNA-induced RNA activation (miRNAa) phenomena have since then been identified. My objective here is to introduce the reader into the emergent miRNAa research field, as well as bring together important discoveries about this unexplored transcriptional activation pathway.
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Affiliation(s)
- Luis M. Vaschetto
- Instituto de Diversidad y Ecología Animal, Consejo Nacional de Investigaciones Científicas y Técnicas (IDEA, CONICET), Av. Vélez Sarsfield 299, X5000JJC Córdoba, Argentina
- Cátedra de Diversidad Animal I, Facultad de Ciencias Exactas, Físicas y Naturales, Universidad Nacional de Córdoba, (FCEFyN, UNC), Av. Vélez Sarsfield 299, X5000JJC Córdoba, Argentina
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33
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Liu H, Lei C, He Q, Pan Z, Xiao D, Tao Y. Nuclear functions of mammalian MicroRNAs in gene regulation, immunity and cancer. Mol Cancer 2018; 17:64. [PMID: 29471827 PMCID: PMC5822656 DOI: 10.1186/s12943-018-0765-5] [Citation(s) in RCA: 226] [Impact Index Per Article: 37.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2017] [Accepted: 01/12/2018] [Indexed: 12/19/2022] Open
Abstract
MicroRNAs (miRNAs) are endogenous non-coding RNAs that contain approximately 22 nucleotides. They serve as key regulators in various biological processes and their dysregulation is implicated in many diseases including cancer and autoimmune disorders. It has been well established that the maturation of miRNAs occurs in the cytoplasm and miRNAs exert post-transcriptional gene silencing (PTGS) via RNA-induced silencing complex (RISC) pathway in the cytoplasm. However, numerous studies reaffirm the existence of mature miRNA in the nucleus, and nucleus-cytoplasm transport mechanism has also been illustrated. Moreover, active regulatory functions of nuclear miRNAs were found including PTGS, transcriptional gene silencing (TGS), and transcriptional gene activation (TGA), in which miRNAs bind nascent RNA transcripts, gene promoter regions or enhancer regions and exert further effects via epigenetic pathways. Based on existing interaction rules, some miRNA binding sites prediction software tools are developed, which are evaluated in this article. In addition, we attempt to explore and review the nuclear functions of miRNA in immunity, tumorigenesis and invasiveness of tumor. As a non-canonical aspect of miRNA action, nuclear miRNAs supplement miRNA regulatory networks and could be applied in miRNA based therapies.
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Affiliation(s)
- Hongyu Liu
- Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, Hunan, 410008, China
- Key Laboratory of Carcinogenesis, Ministry of Education, Cancer Research Institute, School of Basic Medicine, Central South University, 110 Xiangya Road, Changsha, Hunan, 410078, China
| | - Cheng Lei
- Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, Hunan, 410008, China
- Key Laboratory of Carcinogenesis, Ministry of Education, Cancer Research Institute, School of Basic Medicine, Central South University, 110 Xiangya Road, Changsha, Hunan, 410078, China
| | - Qin He
- Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, Hunan, 410008, China
- Key Laboratory of Carcinogenesis, Ministry of Education, Cancer Research Institute, School of Basic Medicine, Central South University, 110 Xiangya Road, Changsha, Hunan, 410078, China
| | - Zou Pan
- Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, Hunan, 410008, China
- Key Laboratory of Carcinogenesis, Ministry of Education, Cancer Research Institute, School of Basic Medicine, Central South University, 110 Xiangya Road, Changsha, Hunan, 410078, China
| | - Desheng Xiao
- Department of Pathology, Xiangya Hospital, Central South University, Changsha, Hunan, 410078, China
| | - Yongguang Tao
- Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, Hunan, 410008, China.
- Key Laboratory of Carcinogenesis, Ministry of Education, Cancer Research Institute, School of Basic Medicine, Central South University, 110 Xiangya Road, Changsha, Hunan, 410078, China.
- Department of Thoracic Surgery, Second Xiangya Hospital, Central South University, Changsha, China.
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Xu X, Li J, Zhu Y, Xie B, Wang X, Wang S, Xie H, Yan H, Ying Y, Lin Y, Liu B, Wang W, Zheng X. CRISPR-ON-Mediated KLF4 overexpression inhibits the proliferation, migration and invasion of urothelial bladder cancer in vitro and in vivo. Oncotarget 2017; 8:102078-102087. [PMID: 29254226 PMCID: PMC5731936 DOI: 10.18632/oncotarget.22158] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2017] [Accepted: 10/05/2017] [Indexed: 11/25/2022] Open
Abstract
Kruppel like factor 4 (KLF4), a transcription factor associated with carcinogenesis and tumor progression, plays an important role in various malignancies. In the present study, we utilized the CRISPR-ON system to upregulate KLF4 expression level and subsequently investigated the effect and mechanism of KLF4 in the carcinogenesis and progression of urothelial bladder cancer (UBC). Immunohistochemistry (IHC) and quantitative RT-PCR (qRT-PCR) were used to evaluate the expression of KLF4. The CpG methylation status of the promoter region was analyzed using bisulfite-sequencing PCR (BSP). CRISPR-ON system comprised sgRNA and dCas9 protein combined with a transcriptional activation domain. The cell proliferation and cell cycle were assessed by CCK-8 assay, flow cytometry and colony formation assay. The cell motility ability was evaluated using trans-well assay. In vivo tumorigenesis assay and lung metastasis model were also performed. The KLF4 expression was significantly downregulated in UBC tissues. The high CpG methylation status in the promoter of KLF4 was confirmed using BSP. KLF4 overexpression was successfully achieved via CRISPR-ON system, which inhibited the proliferation and induced G1-phase arrest in T24 cells through the regulation of AKT/p21 signal. Furthermore, enforced expression of KLF4 also abrogated the migration and invasion of T24 cells by suppressing EMT progression. Finally, in vivo models indicated that the upregulation of KLF4 could inhibit tumorigenesis and lung metastasis in nude mice. In conclusion, KLF4 overexpression mediated by CRISPR-ON inhibits tumorigenesis and EMT progression in UBC cells, representing a potential therapeutic target, and CRISPR-ON system could be a therapeutic strategy for UBC in the future.
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Affiliation(s)
- Xin Xu
- Department of Urology, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310003, Zhejiang Province, P.R. China
| | - Jiangfeng Li
- Department of Urology, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310003, Zhejiang Province, P.R. China
| | - Yi Zhu
- Department of Urology, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310003, Zhejiang Province, P.R. China
| | - Bo Xie
- Department of Urology, Tongde Hospital of Zhejiang Province, Hangzhou 310012, Zhejiang Province, P.R. China
| | - Xiao Wang
- Department of Urology, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310003, Zhejiang Province, P.R. China
| | - Song Wang
- Department of Urology, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310003, Zhejiang Province, P.R. China
| | - Haiyun Xie
- Department of Urology, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310003, Zhejiang Province, P.R. China
| | - Huaqing Yan
- Department of Urology, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310003, Zhejiang Province, P.R. China
| | - Yufan Ying
- Department of Urology, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310003, Zhejiang Province, P.R. China
| | - Yiwei Lin
- Department of Urology, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310003, Zhejiang Province, P.R. China
| | - Ben Liu
- Department of Urology, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310003, Zhejiang Province, P.R. China
| | - Wei Wang
- Department of Urology, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310003, Zhejiang Province, P.R. China
| | - Xiangyi Zheng
- Department of Urology, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310003, Zhejiang Province, P.R. China
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35
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p16 expression in cutaneous squamous cell carcinoma of the head and neck is not associated with integration of high risk HPV DNA or prognosis. Pathology 2017; 49:494-498. [DOI: 10.1016/j.pathol.2017.04.002] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2017] [Revised: 03/29/2017] [Accepted: 04/06/2017] [Indexed: 02/07/2023]
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36
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唐 艳, 阳 学. 肝星状细胞衰老与增殖、凋亡的关系. Shijie Huaren Xiaohua Zazhi 2017; 25:1469-1474. [DOI: 10.11569/wcjd.v25.i16.1469] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
肝星状细胞(hepatic stellate cells, HSCs)活化、细胞外基质大量形成是肝纤维化发生发展的关键环节. 许多研究发现, 抑制HSCs增殖、促进HSCs凋亡可阻断肝纤维化进程; 同时研究发现, 促进活化HSCs衰老也可为肝纤维化的防治提供新的策略. 本文就HSCs衰老与增殖、凋亡的关系以及在肝纤维化中的作用相关研究进展予以综述.
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37
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Wang S, Tang L, Zhou Q, Lu D, Duan W, Chen C, Huang L, Tan Y. miR-185/P2Y6Axis Inhibits Angiotensin II-Induced Human Aortic Vascular Smooth Muscle Cell Proliferation. DNA Cell Biol 2017; 36:377-385. [DOI: 10.1089/dna.2016.3605] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Affiliation(s)
- Shunmin Wang
- The Graduate Institute, Hunan University of Chinese Medicine, Changsha City, China
- Department of Cardiovascular, The First Hospital of Hunan University of Chinese Medicine, Changsha, China
| | - Lujun Tang
- The Graduate Institute, Hunan University of Chinese Medicine, Changsha City, China
| | - Qian Zhou
- The Graduate Institute, Hunan University of Chinese Medicine, Changsha City, China
| | - Duomei Lu
- The Graduate Institute, Hunan University of Chinese Medicine, Changsha City, China
| | - Wulei Duan
- The Graduate Institute, Hunan University of Chinese Medicine, Changsha City, China
| | - Cheng Chen
- The Graduate Institute, Hunan University of Chinese Medicine, Changsha City, China
| | - Lu Huang
- Department of Cardiovascular, The First Hospital of Hunan University of Chinese Medicine, Changsha, China
| | - Yuansheng Tan
- Department of Cardiovascular, First College of Traditional Chinese Medicine, Hunan University of Chinese Medicine, Changsha, China
- Department of Cardiovascular, College of Integrated Traditional Chinese and Western Medicine, Hunan Academy of Chinese Medicine, Changsha, China
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38
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Munk R, Panda AC, Grammatikakis I, Gorospe M, Abdelmohsen K. Senescence-Associated MicroRNAs. INTERNATIONAL REVIEW OF CELL AND MOLECULAR BIOLOGY 2017; 334:177-205. [PMID: 28838538 DOI: 10.1016/bs.ircmb.2017.03.008] [Citation(s) in RCA: 53] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Senescent cells arise as a consequence of cellular damage and can have either a detrimental or advantageous impact on tissues and organs depending on the specific cell type and metabolic state. As senescent cells accumulate in tissues with advancing age, they have been implicated in many age-related declines and diseases. The major facets of senescence include two pathways responsible for establishing and maintaining a senescence program, p53/CDKN1A(p21) and CDKN2A(p16)/RB, as well as the senescence-associated secretory phenotype. Numerous MicroRNAs influence senescence by modulating the abundance of key senescence regulatory proteins, generally by lowering the stability and/or translation of mRNAs that encode such factors. Accordingly, understanding the molecular mechanisms by which MicroRNAs influence senescence will enable diagnostic and therapeutic opportunities directed at senescent cells. Here, we review senescence-associated (SA)-MicroRNAs and discuss their implications in senescence-relevant pathologies.
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Affiliation(s)
- Rachel Munk
- Laboratory of Genetics and Genomics, National Institute on Aging, National Institutes of Health, Baltimore, MD, United States
| | - Amaresh C Panda
- Laboratory of Genetics and Genomics, National Institute on Aging, National Institutes of Health, Baltimore, MD, United States
| | - Ioannis Grammatikakis
- Laboratory of Genetics and Genomics, National Institute on Aging, National Institutes of Health, Baltimore, MD, United States
| | - Myriam Gorospe
- Laboratory of Genetics and Genomics, National Institute on Aging, National Institutes of Health, Baltimore, MD, United States
| | - Kotb Abdelmohsen
- Laboratory of Genetics and Genomics, National Institute on Aging, National Institutes of Health, Baltimore, MD, United States.
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