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Li K, Ji YM, Guo JL, Guo Q. Biological functions and molecular mechanisms of LINC00961 in human cancer. ALL LIFE 2023. [DOI: 10.1080/26895293.2023.2174707] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2023] Open
Affiliation(s)
- Kai Li
- Department of Hepatobiliary and Pancreatic Surgery, People's Hospital of Jianyang, Jianyang, Sichuan, People’s Republic of China
| | - Yan-Mei Ji
- Department of Critical Care Medicine, Taihe Hospital, Hubei University of Medicine, Shiyan, Hubei, People’s Republic of China
| | - Jia-Long Guo
- Department of Cardiothoracic Surgery, Taihe Hospital, Hubei University of Medicine, Shiyan, Hubei, People’s Republic of China
| | - Qiang Guo
- Department of Cardiothoracic Surgery, Taihe Hospital, Hubei University of Medicine, Shiyan, Hubei, People’s Republic of China
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Cheng C, Tian Y, Yang R, Guo W, Xiao K, Zhang F, Tian J, Deng Z, Yang W, Yang H, Zhou Z. miR-5581 Contributes to Osteoarthritis by Targeting NRF1 to Disturb the Proliferation and Functions of Chondrocytes. THE AMERICAN JOURNAL OF PATHOLOGY 2023; 193:1234-1247. [PMID: 37611970 DOI: 10.1016/j.ajpath.2023.05.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2022] [Revised: 05/09/2023] [Accepted: 05/24/2023] [Indexed: 08/25/2023]
Abstract
Chondrocyte survival is critical for the preservation of a healthy cartilage matrix. Limited chondrocyte function and survival can result in articular cartilage failure, thereby contributing to osteoarthritis (OA). In this study, miR-5581 was significantly up-regulated in OA samples, and miR-5581-associated genes were enriched in Kras signaling. miR-5581 up-regulation was observed in clinical OA samples and IL-1β-stimulated chondrocytes. miR-5581 inhibition attenuated IL-1β-induced chondrocyte proliferation suppression, extracellular matrix (ECM) synthesis suppression and degradation, and IL-1β-suppressed Kras signaling activation. miR-5581 was targeted to inhibit NRF1. In IL-1β-treated chondrocytes, NRF1 overexpression attenuated IL-1β-induced cellular damage and partially abolished the effects of miR-5581 overexpression on IL-1β-stimulated chondrocytes. NRF1 was down-regulated in knee joint cartilage of OA mice. In conclusion, miR-5581, which was up-regulated in OA samples and IL-1β-stimulated chondrocytes, inhibited chondrocyte proliferation and ECM synthesis, and promoted ECM degradation through targeting NRF1, whereby Kras signaling might be involved.
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Affiliation(s)
- Chao Cheng
- Department of Orthopaedics, The Fourth People's Hospital of Yiyang, Yiyang, China; Clinical Medical Technology Demonstration Base for Minimally Invasive and Digital Orthopaedics in Hunan Province, Yiyang, China
| | - Ye Tian
- Clinical Medical Technology Demonstration Base for Minimally Invasive and Digital Orthopaedics in Hunan Province, Yiyang, China; Department of Orthopaedics, Yiyang Central Hospital, Yiyang, China
| | - Ruiqi Yang
- Clinical Medical Technology Demonstration Base for Minimally Invasive and Digital Orthopaedics in Hunan Province, Yiyang, China; Department of Orthopaedics, Yiyang Central Hospital, Yiyang, China
| | - Wei Guo
- Clinical Medical Technology Demonstration Base for Minimally Invasive and Digital Orthopaedics in Hunan Province, Yiyang, China; Department of Orthopaedics, Yiyang Central Hospital, Yiyang, China
| | - Kai Xiao
- Clinical Medical Technology Demonstration Base for Minimally Invasive and Digital Orthopaedics in Hunan Province, Yiyang, China; Department of Orthopaedics, Yiyang Central Hospital, Yiyang, China
| | - Fangjie Zhang
- Department of Emergency Medicine, Xiangya Hospital, Central South University, Changsha, China
| | - Jian Tian
- Department of Orthopaedics, Xiangya Hospital, Central South University, Changsha, China
| | - Zhenhan Deng
- Department of Sports Medicine, The First Affiliated Hospital of Shenzhen University, Shenzhen Second People's Hospital, Shenzhen, China
| | - Wenjian Yang
- Department of Orthopaedics, Yiyang Central Hospital, Yiyang, China
| | - Hua Yang
- Clinical Medical Technology Demonstration Base for Minimally Invasive and Digital Orthopaedics in Hunan Province, Yiyang, China; Department of Orthopaedics, Yiyang Central Hospital, Yiyang, China.
| | - Zhihong Zhou
- Department of Clinical Medicine, Yiyang Medical College, Yiyang, China.
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Jiang W, Wang Y, Yu C, Sui D, Du G, Li Y. Prognostic Analysis and Biomarkers Identification of Immune Infiltration in Early and Late Stage Hepatocellular Carcinoma Based on TCGA Data. Int J Gen Med 2023; 16:2519-2530. [PMID: 37346812 PMCID: PMC10281275 DOI: 10.2147/ijgm.s420458] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Accepted: 06/13/2023] [Indexed: 06/23/2023] Open
Abstract
Background Hepatocellular carcinoma (HCC) is a major cause of cancer death in the world. The aim of this study was to establish a new model to predict the prognosis of HCC. Materials and Methods The mRNA, miRNA and lncRNA expression profiles of early (stage I-II) and late (stage III-IV) stage HCC patients were acquired from The Cancer Genome Atlas (TCGA) database. The differentially expressed mRNAs (DEmRNAs), miRNAs (DEmiRNAs) and lncRNAs (DElncRNAs) were identified between early and late stage HCC. Key molecules associated with the prognosis, and important immune cell types in HCC were identified. The nomogram based on incorporating age, gender, stage, and all important factors was constructed to predict the survival of HCC. Results A total of 1516 DEmRNAs, 97 DEmiRNAs and 87 DElncRNAs were identified. A DElncRNA-DEmiRNA-DEmRNA regulatory network including 78 mRNAs, 50 miRNAs and 1 lncRNA was established. Among the regulatory network, 11 molecules were significantly correlated with the prognosis of HCC based on Lasso regression analysis. Then, Preadipocytes and 3 survival-associated DEmRNAs were identified as crucial biomarkers. Subsequently, a nomogram with a differentiation degree of 0.758, including 1 immune cell, 11 mRNAs and 3 miRNAs, was generated. Conclusion Our study constructed a model by incorporating clinical information, significant biomarkers and immune cells to predict the survival of HCC, which achieved a good performance.
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Affiliation(s)
- Wenying Jiang
- Department of General Surgery, The Second People’s Hospital of Liaocheng Affiliated to Shandong First Medical University, Liaocheng, Shandong, People’s Republic of China
| | - Yunxing Wang
- Department of General Surgery, The Second People’s Hospital of Liaocheng Affiliated to Shandong First Medical University, Liaocheng, Shandong, People’s Republic of China
| | - Changtao Yu
- Department of General Surgery, The Second People’s Hospital of Liaocheng Affiliated to Shandong First Medical University, Liaocheng, Shandong, People’s Republic of China
| | - Deling Sui
- Department of General Surgery, The Second People’s Hospital of Liaocheng Affiliated to Shandong First Medical University, Liaocheng, Shandong, People’s Republic of China
| | - Gang Du
- Department of General Surgery, Qilu Hospital of Shandong University, Jinan, Shandong, People’s Republic of China
| | - Youchun Li
- Department of General Surgery, The Second People’s Hospital of Liaocheng Affiliated to Shandong First Medical University, Liaocheng, Shandong, People’s Republic of China
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Hu Y, Yu Y, Dong H, Jiang W. Identifying C1QB, ITGAM, and ITGB2 as potential diagnostic candidate genes for diabetic nephropathy using bioinformatics analysis. PeerJ 2023; 11:e15437. [PMID: 37250717 PMCID: PMC10225123 DOI: 10.7717/peerj.15437] [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: 12/15/2022] [Accepted: 04/27/2023] [Indexed: 05/31/2023] Open
Abstract
Background Diabetic nephropathy (DN), the most intractable complication in diabetes patients, can lead to proteinuria and progressive reduction of glomerular filtration rate (GFR), which seriously affects the quality of life of patients and is associated with high mortality. However, the lack of accurate key candidate genes makes diagnosis of DN very difficult. This study aimed to identify new potential candidate genes for DN using bioinformatics, and elucidated the mechanism of DN at the cellular transcriptional level. Methods The microarray dataset GSE30529 was downloaded from the Gene Expression Omnibus Database (GEO), and the differentially expressed genes (DEGs) were screened by R software. We used Gene Ontology (GO), gene set enrichment analysis (GSEA), and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment analysis to identify the signal pathways and genes. Protein-protein interaction (PPI) networks were constructed using the STRING database. The GSE30122 dataset was selected as the validation set. Receiver operating characteristic (ROC) curves were applied to evaluate the predictive value of genes. An area under curve (AUC) greater than 0.85 was considered to be of high diagnostic value. Several online databases were used to predict miRNAs and transcription factors (TFs) capable of binding hub genes. Cytoscape was used for constructing a miRNA-mRNA-TF network. The online database 'nephroseq' predicted the correlation between genes and kidney function. The serum level of creatinine, BUN, and albumin, and the urinary protein/creatinine ratio of the DN rat model were detected. The expression of hub genes was further verified through qPCR. Data were analyzed statistically using Student's t-test by the 'ggpubr' package. Results A total of 463 DEGs were identified from GSE30529. According to enrichment analysis, DEGs were mainly enriched in the immune response, coagulation cascades, and cytokine signaling pathways. Twenty hub genes with the highest connectivity and several gene cluster modules were ensured using Cytoscape. Five high diagnostic hub genes were selected and verified by GSE30122. The MiRNA-mRNA-TF network suggested a potential RNA regulatory relationship. Hub gene expression was positively correlated with kidney injury. The level of serum creatinine and BUN in the DN group was higher than in the control group (unpaired t test, t = 3.391, df = 4, p = 0.0275, r = 0.861). Meanwhile, the DN group had a higher urinary protein/creatinine ratio (unpaired t test, t = 17.23, df = 16, p < 0.001, r = 0.974). QPCR results showed that the potential candidate genes for DN diagnosis included C1QB, ITGAM, and ITGB2. Conclusions We identified C1QB, ITGAM and ITGB2 as potential candidate genes for DN diagnosis and therapy and provided insight into the mechanisms of DN development at transcriptome level. We further completed the construction of miRNA-mRNA-TF network to propose potential RNA regulatory pathways adjusting disease progression in DN.
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Affiliation(s)
- Yongzheng Hu
- Department of Nephrology, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
| | - Yani Yu
- Department of Nephrology, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
| | - Hui Dong
- Health Management Center, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
| | - Wei Jiang
- Department of Nephrology, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
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Sanya DRA, Onésime D. Roles of non-coding RNAs in the metabolism and pathogenesis of bladder cancer. Hum Cell 2023:10.1007/s13577-023-00915-5. [PMID: 37209205 DOI: 10.1007/s13577-023-00915-5] [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: 01/29/2023] [Accepted: 05/07/2023] [Indexed: 05/22/2023]
Abstract
Bladder cancer (BC) is featured as the second most common malignancy of the urinary tract worldwide with few treatments leading to high incidence and mortality. It stayed a virtually intractable disease, and efforts to identify innovative and effective therapies are urgently needed. At present, more and more evidence shows the importance of non-coding RNA (ncRNA) for disease-related study, diagnosis, and treatment of diverse types of malignancies. Recent evidence suggests that dysregulated functions of ncRNAs are closely associated with the pathogenesis of numerous cancers including BC. The detailed mechanisms underlying the dysregulated role of ncRNAs in cancer progression are still not fully understood. This review mainly summarizes recent findings on regulatory mechanisms of the ncRNAs, long non-coding RNAs, microRNAs, and circular RNAs, in cancer progression or suppression and focuses on the predictive values of ncRNAs-related signatures in BC clinical outcomes. A deeper understanding of the ncRNA interactive network could be compelling framework for developing biomarker-guided clinical trials.
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Affiliation(s)
- Daniel Ruben Akiola Sanya
- Micalis Institute, Diversité génomique et fonctionnelle des levures, domaine de Vilvert, Université Paris-Saclay, INRAE, AgroParisTech, 78350, Jouy-en-Josas, France.
| | - Djamila Onésime
- Micalis Institute, Diversité génomique et fonctionnelle des levures, domaine de Vilvert, Université Paris-Saclay, INRAE, AgroParisTech, 78350, Jouy-en-Josas, France
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Hu JX, Zheng ZQ, Kang T, Qian W, Huang SH, Li BG. LncRNA LINC00961 regulates endothelial‑mesenchymal transition via the PTEN‑PI3K‑AKT pathway. Mol Med Rep 2022; 26:246. [PMID: 35656895 PMCID: PMC9185682 DOI: 10.3892/mmr.2022.12762] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Accepted: 05/18/2022] [Indexed: 11/30/2022] Open
Abstract
The long noncoding RNA LINC00961 plays a crucial role in cancer and cardiovascular diseases. In the present study, the role and underlying mechanism of LINC00961 in endothelial-mesenchymal transition (EndMT) induced by transforming growth factor beta (TGF-β), was investigated. Human cardiac microvascular endothelial cells were transfected with LV-LINC00961 or short hairpin LINC00961 plasmids to overexpress or knock down LINC00961 in the cells, respectively. The cells were then exposed to TGF-β in serum-free medium for 48 h to induce EndMT. Flow cytometric analysis, Cell Counting Kit-8 assay and immunofluorescence staining were performed to examine the cell apoptosis rate, assess cell viability, and identify CD31+/α-SMA+ double-positive cells, respectively. Western blotting and reverse transcription- quantitative polymerase chain reaction were used to evaluate protein and mRNA expression, respectively. Injury to endothelial cells and EndMT was induced by TGF-β in a time-dependent manner. LINC00961 overexpression promoted injury and EndMT, whereas LINC00961 knockdown had the opposite effects. Knockdown of LINC00961 attenuated EndMT and injury to endothelial cells induced by TGF-β via the PTEN-PI3K-AKT pathway. Inhibition of LINC00961 expression may prevent the occurrence of EndMT-related cardiovascular diseases, such as myocardial fibrosis and heart failure. Therefore, LINC00961 shows potential as a therapeutic target for cardiovascular diseases.
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Affiliation(s)
- Jin-Xing Hu
- Department of Cardiology, First Affiliated Hospital, Nanchang University, Nanchang, Jiangxi 330033, P.R. China
| | - Ze-Qi Zheng
- Department of Cardiology, First Affiliated Hospital, Nanchang University, Nanchang, Jiangxi 330033, P.R. China
| | - Ting Kang
- Department of Cardiology, First Affiliated Hospital, Nanchang University, Nanchang, Jiangxi 330033, P.R. China
| | - Wei Qian
- Department of Cardiology, First Affiliated Hospital, Nanchang University, Nanchang, Jiangxi 330033, P.R. China
| | - Shan-Hua Huang
- Department of Cardiology, First Affiliated Hospital, Nanchang University, Nanchang, Jiangxi 330033, P.R. China
| | - Bin-Gong Li
- Department of Cardiology, First Affiliated Hospital, Nanchang University, Nanchang, Jiangxi 330033, P.R. China
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SMAD3 and FTO are involved in miR-5581-3p-mediated inhibition of cell migration and proliferation in bladder cancer. Cell Death Dis 2022; 8:199. [PMID: 35418191 PMCID: PMC9007965 DOI: 10.1038/s41420-022-01010-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2021] [Revised: 03/29/2022] [Accepted: 03/29/2022] [Indexed: 01/17/2023]
Abstract
Previous research evidence suggests that microRNAs (miRNAs) play an indispensable role in onset and progression of bladder cancer (BCa). Here, we explored the functions and mechanisms of miR-5581-3p in BCa. miR-5581-3p, as a tumor suppressor in BCa, was detected at a lower expression level in BCa tissue and cells in contrast with the non-malignant bladder tissue and cells. Over-expression of miR-5581-3p remarkably dampened the migration and proliferation of BCa in vitro and in vivo. SMAD3 and FTO were identified as the direct targets of miR-5581-3p by online databases prediction and mRNA-seq, which were further verified. SMAD3 as a star molecule in modulating EMT progress of BCa had been formulated in former studies. Meanwhile, FTO proved as an N6-methyladenosine (m6A) demethylase in decreasing m6A modification was confirmed to regulate the migration and proliferation in BCa. In addition, we conducted rescue experiments and confirmed overexpressing miR-5581-3p partially rescued the effects of the overexpressing SMAD3 and FTO in BCa cells. In conclusion, our studies exhibit that miR-5581-3p is a novel tumor inhibitor of BCa.
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Sui J, Zhao Q, Zhang Y, Liang G. Dysregulated LINC00961 Contributes to the Vitality and Migration of NSCLC Via miR-19a-3p/miR-19b-3p/miR-125b-5p. DNA Cell Biol 2022; 41:319-329. [PMID: 35244469 DOI: 10.1089/dna.2021.0900] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Accumulating evidence implies that long noncoding RNAs participate in non-small cell lung cancer (NSCLC) tumorigenesis. Our current study synthetically analyzed RNA sequencing data downloaded from The Cancer Genome Atlas (TCGA) and Gene Expression Omnibus (GEO) databases. We identified LINC00961 significantly downregulated in NSCLC tissues. We explored the LINC00961 expression in NSCLC tumor tissues and cell lines with reverse transcription-quantitative polymerase chain reaction analysis. Lentivirus-mediated infection upregulated the expression of LINC00961 in A549 cells. The proliferation and migration capability were also measured in A549 cells. In addition, we performed luciferase reporter gene assay to investigate whether LINC00961 directly interacts with miR-19a-3p/miR-19b-3p/miR-125b-5p. A nude mice model was used to detect the potential biological process of LINC00961 on tumor growth in vivo. The results showed that LINC00961 was significantly down-egulated in NSCLC tissues and cell lines. LV-LINC00961 effectively increased the expression of LINC00961 and decreased the expression of miR-19a-3p/miR-19b-3p/miR-125b-5p. LINC00961 upregulation remarkably inhibited cell proliferation, migration, and invasion while promoting cell apoptosis in A549 cells. Luciferase reporter gene assay revealed that LINC00961 could directly sponge miR-19a-3p/miR-19b-3p/miR-125b-5p. Moreover, overexpressed miR-19a-3p/miR-19b-3p/miR-125b-5p reversed the effect of LINC00961 on cell function of A549 cells. Western blot assays revealed that LINC00961 could partially act as a tumor suppressor via affecting PI3K-AKT/MAPK/mTOR signaling pathway. In addition, overexpressed LINC00961-inhibited tumor growth was demonstrated in vivo. Overexpression of LINC00961 inhibited cell viability, invasion, and induced apoptosis in NSCLC, potentially via suppressing the expression of miR-19a-3p/miR-19b-3p/miR-125b-5p by targeting PI3K-AKT/MAPK/mTOR signaling pathways, which might provide the potential biomarker for NSCLC diagnosis and therapies.
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Affiliation(s)
- Jing Sui
- Research Institute for Environment and Health, Nanjing University of Information Science and Technology, Nanjing, China.,Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, China
| | - Qun Zhao
- Research Institute for Environment and Health, Nanjing University of Information Science and Technology, Nanjing, China
| | - Yanqiu Zhang
- Department of Environmental Occupational Hygiene, Taizhou Center for Disease Control and Prevention, Taizhou, China
| | - Geyu Liang
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, China
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Hsa-miR-5581-3p and Hsa-miR-542-3p Target the F8 Gene in Hemophilia A without F8 Mutations. Mediterr J Hematol Infect Dis 2021; 13:e2021041. [PMID: 34276910 PMCID: PMC8265364 DOI: 10.4084/mjhid.2021.041] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2021] [Accepted: 06/07/2021] [Indexed: 12/17/2022] Open
Abstract
Objective This study aims at uncovering the effects of microRNAs (miRNAs) on the F8 gene and FVIII protein in hemophilia A (HA). Methods F8-targeting miRNAs were predicted by TargetScan, miRDB, and starBase. MiRNAs, predicted by at least two of the three databases, were selected for further study, and their expressions in the blood of HA patients without F8 mutations and healthy controls were detected. A dual-luciferase reporter assay was performed to verify the binding between hsa-miR-5581-3p/hsa-miR-542-3p and F8. In addition, the regulation of F8 by hsa-miR-5581-3p/hsa-miR-542-3p was investigated in human umbilical vein endothelial cells (HUVECs) and lymphoblastoid cell line (LCL) that displayed endogenous expression of FVIII. qRT-PCR was used to detect the expressions of miRNAs and F8 gene, and Western blotting was conducted to measure the expression of FVIII protein. Results A total of 42 F8-targeting miRNAs were predicted by at least two of the three databases. Among these miRNAs, hsa-miR-5581-3p and hsa-miR-542-3p were highly expressed in the blood of HA patients and have not been reported in previous studies of HA. Both hsa-miR-5581-3p and hsa-miR-542-3p could bind the 3′UTR of F8 mRNA. Upregulation of hsa-miR-5581-3p or hsa-miR-542-3p suppressed the expressions of F8 mRNA and FVIII protein in HUVECs and LCL cells. Conclusion Hsa-miR-5581-3p and hsa-miR-542-3p target the F8 gene and suppress the expression of FVIII protein, which may contribute to the development of HA without F8 mutations.
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Long Noncoding RNA LINC00526 Represses Glioma Progression via Regulating miR-5581-3p/BEX1. JOURNAL OF ONCOLOGY 2021; 2021:8171250. [PMID: 33613672 PMCID: PMC7878094 DOI: 10.1155/2021/8171250] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Accepted: 11/30/2020] [Indexed: 12/14/2022]
Abstract
The roles of long noncoding RNAs (lncRNAs) in regulating glioma progression have been widely recognized in recent years. This work was to investigate the roles and associated mechanisms of LINC00526 in glioma progression. LINC00526 expression in glioma tissues and cells and their normal counterparts was measured with quantitative real-time polymerase chain reaction method. Functions of LINC00526 in glioma were investigated with in vitro experiments. Moreover, competitive RNA (ceRNA) theory was employed to understand mechanisms of action of LINC00526 in glioma. LINC00526 was found to be decreased in glioma tissues and cell lines compared with their normal counterparts. Silencing the expression of LINC00526 promotes, while forcing its expression, inhibits glioma cell growth and invasion. Mechanism analyses showed LINC00526 functions as a sponge for microRNA-5581-3p (miR-5581-3p) to regulate brain-expressed X-linked 1 (BEX1) expression and, in the end, affects glioma progression. Collectively, our study indicated LINC00526 serves as a tumor-suppressive lncRNA and directly regulates miR-5581-3p/BEX1 axis in glioma.
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Ahmadpour ST, Mahéo K, Servais S, Brisson L, Dumas JF. Cardiolipin, the Mitochondrial Signature Lipid: Implication in Cancer. Int J Mol Sci 2020; 21:E8031. [PMID: 33126604 PMCID: PMC7662448 DOI: 10.3390/ijms21218031] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Revised: 10/20/2020] [Accepted: 10/26/2020] [Indexed: 12/24/2022] Open
Abstract
Cardiolipins (CLs) are specific phospholipids of the mitochondria composing about 20% of the inner mitochondria membrane (IMM) phospholipid mass. Dysregulation of CL metabolism has been observed in several types of cancer. In most cases, the evidence for a role for CL in cancer is merely correlative, suggestive, ambiguous, and cancer-type dependent. In addition, CLs could play a pivotal role in several mitochondrial functions/parameters such as bioenergetics, dynamics, mitophagy, and apoptosis, which are involved in key steps of cancer aggressiveness (i.e., migration/invasion and resistance to treatment). Therefore, this review focuses on studies suggesting that changes in CL content and/or composition, as well as CL metabolism enzyme levels, may be linked with the progression and the aggressiveness of some types of cancer. Finally, we also introduce the main mitochondrial function in which CL could play a pivotal role with a special focus on its implication in cancer development and therapy.
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Affiliation(s)
| | | | | | | | - Jean-François Dumas
- Université de Tours, Inserm, Nutrition, Croissance et Cancer UMR1069, 37032 Tours, France; (S.T.A.); (K.M.); (S.S.); (L.B.)
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