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Qu L, Xin Y, Feng J, Ren X, Li Z, Chen X, Miao G, Chen J, Sun C, Lu Y. Downregulation of PRKCI inhibits osteosarcoma cell growth by inactivating the Akt/mTOR signaling pathway. Front Oncol 2024; 14:1389136. [PMID: 39015499 PMCID: PMC11249533 DOI: 10.3389/fonc.2024.1389136] [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: 02/21/2024] [Accepted: 06/10/2024] [Indexed: 07/18/2024] Open
Abstract
PRKCI is abnormally expressed in various cancers, but its role in osteosarcoma is unknown. This study aimed to explore the biological function of PRKCI in osteosarcoma and its potential molecular mechanism. PRKCI expression was evaluated in osteosarcoma cell lines using Western blot analysis and reverse transcription PCR. The CCK-8 assay, colony formation assay, flow cytometry, Transwell assay, and wound-healing assay were used to detect the proliferation, colony-forming capacity, cell cycle, migration, and invasion of osteosarcoma cells when PRKCI was overexpressed or knocked down. The interaction between PRKCI and SQSTM1 was explored using immunoprecipitation. Finally, the protein molecule expression of the Akt/mTOR signaling pathway in osteosarcoma was detected when PRKCI was knocked down. Our study found that PRKCI was overexpressed in osteosarcoma cell lines. The overexpression of PRKCI promoted the proliferation and colony-forming capacity of osteosarcoma cells, while silencing PRKCI inhibited the proliferation, colony-forming capacity, migration, and invasion of osteosarcoma cells and arrested the cell cycle at the G2/M phase. Both PRKCI and SQSTM1 were overexpressed in osteosarcoma. The expression of PRKCI was only related to histological type, while that of SQSTM1 was not related to clinical characteristics. The expression of PRKCI and SQSTM1 in osteosarcoma was higher than that in chondrosarcoma. Knockdown of PRKCI inhibited the proliferation of osteosarcoma cells by inactivating the Akt/mTOR signaling pathway, suggesting that PRKCI was a potential target for osteosarcoma therapy.
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Affiliation(s)
- Liujing Qu
- Department of Clinical Laboratory, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, China
| | - Yu Xin
- Department of Medical Laboratory, Qingdao Sixth People’s Hospital, Qingdao, China
| | - Jieni Feng
- The Second Clinical Medical College, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Xiaolei Ren
- The Second Clinical Medical College, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Zuming Li
- The Second Clinical Medical College, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Xueru Chen
- The Second Clinical Medical College, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Guangyan Miao
- Department of Molecular, Cell and Cancer Biology, University of Massachusetts Chan Medical School, Worcester, MA, United States
| | - Jiankun Chen
- The Third Comprehensive Department, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine (Guangdong Provincial Hospital of Chinese Medicine), Guangzhou, China
| | - Chengming Sun
- Department of Clinical Laboratory, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, China
| | - Yue Lu
- State Key Laboratory of Dampness Syndrome of Chinese Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine (Guangdong Provincial Hospital of Chinese Medicine), Guangzhou, China
- Guangdong-Hong Kong-Macau Joint Lab on Chinese Medicine and Immune Disease Research, Guangzhou University of Chinese Medicine, Guangzhou, China
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2
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Zang X, Wang R, Wang Z, Qiu S, Zhang F, Zhou L, Shen Y, Qian H, Xu W, Jiang J. Exosomal circ50547 as a potential marker and promotor of gastric cancer progression via miR-217/HNF1B axis. Transl Oncol 2024; 45:101969. [PMID: 38692196 PMCID: PMC11070923 DOI: 10.1016/j.tranon.2024.101969] [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: 01/26/2024] [Revised: 03/25/2024] [Accepted: 04/16/2024] [Indexed: 05/03/2024] Open
Abstract
BACKGROUND Exosomes, one of small extracellular vesicles, play a vital role in cell to cell communication and contribute to the advancement of tumors through their cargo molecules. Exosomal circRNAs have emerged as significant players in various types of tumors. Thus, this study aimed to investigate how exosomal circRNAs are involved in the diagnosis and progression of gastric cancer (GC). METHODS Serum exosomes were characterized using transmission electron microscopy, nanoparticle tracking analysis and Western blot. CCK-8, colony formation and transwell assays were conducted to study the function of hsa_circ_0050547 (named as circ50547). qRT-PCR was used to quantify the expression of circ50547 in GC tissues and serum exosomes. Fluorescence in situ hybridization was applied to detect the cellular distribution of circ50547. Stemness and drug-resistance were detected by sphere formation, WB, flow cytometry and half-maximal inhibitory concentration analyses. Bioinformatic analyses, luciferase experiments, qRT-PCR and WB were used to investigate molecular mechanisms. RESULTS We discovered for the first time a new type of GC-derived exosomal circRNA, circ50547. We found that circ50547 is highly expressed in both GC tissues and serum exosomes. Interestingly, we observed that the diagnostic value of exosomal circ50547 is superior to that of serum circ50547. Circ50547 overexpression enhanced the proliferation, migration, invasion, stemness and drug resistance of GC cells, while knockdown of circ50547 showed the opposite effect. Mechanistically, circ50547 acted as a sponge for miR-217 to regulate the expression of HNF1B, which promoted gastric cancer progression. CONCLUSION Exosomal circ50547 may be a promising marker for the diagnosis and prognosis prediction of GC. These findings suggest that it plays an oncogenic role through miR-217/HNF1B signaling pathway in GC.
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Affiliation(s)
- Xueyan Zang
- Aoyang Cancer Institute, Affiliated Aoyang Hospital of Jiangsu University, Zhangjiagang, Jiangsu 215600, PR China; Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu 212013, PR China
| | - Rongrong Wang
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu 212013, PR China; Clinical Medicine Scientific and Technical Innovation Center, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai 200092, PR China
| | - Ziyi Wang
- Aoyang Cancer Institute, Affiliated Aoyang Hospital of Jiangsu University, Zhangjiagang, Jiangsu 215600, PR China
| | - Shuangyang Qiu
- Affiliated fourth Hospital of Jiangsu University, Zhenjiang, Jiangsu 212013, PR China
| | - Fan Zhang
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu 212013, PR China
| | - Le Zhou
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu 212013, PR China
| | - Ye Shen
- Aoyang Cancer Institute, Affiliated Aoyang Hospital of Jiangsu University, Zhangjiagang, Jiangsu 215600, PR China
| | - Hui Qian
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu 212013, PR China
| | - Wenrong Xu
- Aoyang Cancer Institute, Affiliated Aoyang Hospital of Jiangsu University, Zhangjiagang, Jiangsu 215600, PR China; Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu 212013, PR China
| | - Jiajia Jiang
- Aoyang Cancer Institute, Affiliated Aoyang Hospital of Jiangsu University, Zhangjiagang, Jiangsu 215600, PR China; Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu 212013, PR China.
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Davaapil H, McNamara M, Granata A, Macrae RGC, Hirano M, Fitzek M, Aragon-Martin JA, Child A, Smith DM, Sinha S. A phenotypic screen of Marfan syndrome iPSC-derived vascular smooth muscle cells uncovers GSK3β as a new target. Stem Cell Reports 2023; 18:555-569. [PMID: 36669494 PMCID: PMC9968988 DOI: 10.1016/j.stemcr.2022.12.014] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Revised: 12/14/2022] [Accepted: 12/15/2022] [Indexed: 01/20/2023] Open
Abstract
Marfan syndrome (MFS) is a rare connective tissue disorder caused by mutations in FBN1. Patients with MFS notably suffer from aortic aneurysm and dissection. Despite considerable effort, animal models have proven to be poorly predictive for therapeutic intervention in human aortic disease. Patient-derived induced pluripotent stem cells can be differentiated into vascular smooth muscle cells (VSMCs) and recapitulate major features of MFS. We have screened 1,022 small molecules in our in vitro model, exploiting the highly proteolytic nature of MFS VSMCs, and identified 36 effective compounds. Further analysis identified GSK3β as a recurring target in the compound screen. GSK3β inhibition/knockdown did not ameliorate the proliferation defect in MFS-VSMCs but improved MFS-VSMC proteolysis and apoptosis and partially rescued fibrillin-1 deposition. To conclude, we have identified GSK3β as a novel target for MFS, forming the foundation for future work in MFS and other aortic diseases.
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Affiliation(s)
- Hongorzul Davaapil
- Department of Medicine and Wellcome-MRC Cambridge Stem Cell Institute, University of Cambridge, Cambridge CB2 0AW, UK
| | - Madeline McNamara
- Department of Medicine and Wellcome-MRC Cambridge Stem Cell Institute, University of Cambridge, Cambridge CB2 0AW, UK
| | - Alessandra Granata
- Stroke Research Group, Department of Clinical Neurosciences, Cambridge Biomedical Campus, University of Cambridge, Cambridge CB2 0QQ, UK
| | - Robyn G C Macrae
- Department of Medicine and Wellcome-MRC Cambridge Stem Cell Institute, University of Cambridge, Cambridge CB2 0AW, UK; Experimental Medicine and Immunotherapeutics, University of Cambridge, Addenbrooke's Hospital, Cambridge CB2 0QQ, UK
| | - Mei Hirano
- Department of Medicine and Wellcome-MRC Cambridge Stem Cell Institute, University of Cambridge, Cambridge CB2 0AW, UK
| | - Martina Fitzek
- Emerging Innovations, Discovery Sciences, R&D, AstraZeneca, Cambridge CB2 0AA, UK
| | - J A Aragon-Martin
- Department of Surgery and Cancer, Imperial College, Guy Scadding Building, London SW3 6LY, UK; The Marfan Trust, Guy Scadding Building, London SW3 6LY, UK
| | - Anne Child
- Department of Surgery and Cancer, Imperial College, Guy Scadding Building, London SW3 6LY, UK; The Marfan Trust, Guy Scadding Building, London SW3 6LY, UK
| | - David M Smith
- Emerging Innovations, Discovery Sciences, R&D, AstraZeneca, Cambridge CB2 0AA, UK
| | - Sanjay Sinha
- Department of Medicine and Wellcome-MRC Cambridge Stem Cell Institute, University of Cambridge, Cambridge CB2 0AW, UK.
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Yang X, Jiang H, Sun C. Construction of Lentiviral Vector for miR-217 Overexpression and Knockdown and Its Effect on CML. Mol Biotechnol 2022:10.1007/s12033-022-00615-9. [DOI: 10.1007/s12033-022-00615-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Accepted: 11/16/2022] [Indexed: 12/14/2022]
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You T, Zhang B. CircWDR33 alleviates human pulmonary microvascular endothelial cell injury in sepsis-associated acute lung injury by targeting miR-217-5p/SERP1 axis. Int Immunopharmacol 2022; 113:109440. [DOI: 10.1016/j.intimp.2022.109440] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Revised: 11/03/2022] [Accepted: 11/05/2022] [Indexed: 11/21/2022]
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Chen Z, Huang M, You J, Lin Y, Huang Q, He C. Circular RNA hsa_circ_0023404 promotes the proliferation, migration and invasion in endometrial cancer cells through regulating miR-217/MAPK1 axis. Eur J Med Res 2022; 27:242. [DOI: 10.1186/s40001-022-00866-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Accepted: 10/24/2022] [Indexed: 11/11/2022] Open
Abstract
Abstract
Background
Emerging studies indicated that circular RNA hsa_circ_ 0023404 and its target miR-217/MARK1 axis play a critical role in cancer progression such as non-small cell lung cancer and cervical cancer. However, the role of hsa_circ_0023404/miR-217/MARK1 involved in endometrial cancer (EC) was not investigated yet. The aim of this study is to investigate the functions of hsa_circ_0023404 in endometrial cancer (EC) and the potential molecular mechanism.
Methods
We used RT-qPCR and Western blot approach to detect the expressed levels of related genes in EC cell lines. Transfected siRNAs were applied to knockdown the level of related mRNA in cells. Cell proliferation by CCK-8 assay and colony formation assay were applied to detect cell proliferation. Transwell migration and invasion assay was for detecting the migration and invasion of the cells.
Results
RT-qPCR showed that the levels of hsa_circ_0023404 and MARK1 mRNA were upregulated, but mirR-217 was decreased in three endometrial cancer cell lines. Knockdown of hsa_circ_0023404 by siRNA markedly increased the level of miR-217 and reduced the proliferation of the Ishikawa cells. It also inhibited the cell migration and invasion. Anti-miR-217 can reverse the promoted proliferation, migrations and invasion of Ishikawa cells mediated by si-circ_0023404. si-MARK1 restored the inhibited cell proliferation, migration and invasion of the co-transfected Ishikawa cells with si- circ_0023404 and anti-miR-217.
Conclusion
hsa_circ_0023404 exerts a tumor-promoting role in endometrial cancer by regulating miR-217/MARK1 axis. hsa_circ_0023404 inhibit miR-217 as sponge which inhibit endometrial cancer cell growth and metastasis. MARK1 is downstream target of miR217 and upregulated by hsa_circ_ 0023404/miR-217 axis and involved in the endometrial cancer progression.
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Tian FY, Kennedy EM, Hermetz K, Burt A, Everson TM, Punshon T, Jackson BP, Hao K, Chen J, Karagas MR, Koestler DC, Marsit C. Selenium-associated differentially expressed microRNAs and their targeted mRNAs across the placental genome in two U.S. birth cohorts. Epigenetics 2022; 17:1234-1245. [PMID: 34784848 PMCID: PMC9542509 DOI: 10.1080/15592294.2021.2003044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2021] [Revised: 10/21/2021] [Accepted: 11/02/2021] [Indexed: 10/19/2022] Open
Abstract
Selenium is an important micronutrient for foetal development. MicroRNAs play an important role in the function of the placenta, in communication between the placenta and maternal systems, and their expression can be altered through environmental and nutritional cues. To investigate the associations between placental selenium concentration and microRNA expression in the placenta, our observational study included 393 mother-child pairs from the New Hampshire Birth Cohort Study (NHBCS) and the Rhode Island Child Health Study (RICHS). Placental selenium concentrations were quantified using inductively coupled plasma mass spectrometry, and microRNA transcripts were measured using RNA-seq. We fit negative binomial additive models for assessing the association between selenium and microRNAs. We used the microRNA Data Integration Portal (mirDIP) to predict the target mRNAs of the differentially expressed microRNAs and verified the relationships between miRNA and mRNA targets in a subset of samples using existing whole transcriptome data (N = 199). We identified a non-monotonic association between selenium concentration and the expression of miR-216a-5p/miR-217-5p cluster (effective degrees of freedom, EDF = 2.44 and 2.08; FDR = 3.08 × 10-5) in placenta. Thirty putative target mRNAs of miR-216a-5p and/or miR-217-5p were identified computationally and empirically and were enriched in selenium metabolic pathways (driven by selenoprotein coding genes, TXNRD2 and SELENON). Our findings suggest that selenium influences placental microRNA expression. Further, miR-216a-5p and its putative target mRNAs could be the potential mechanistic targets of the health effect of selenium.
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Affiliation(s)
- Fu-Ying Tian
- Gangarosa Department of Environmental Health, Rollins School of Public Health, Emory University, Atlanta, Georgia, USA
| | - Elizabeth M. Kennedy
- Gangarosa Department of Environmental Health, Rollins School of Public Health, Emory University, Atlanta, Georgia, USA
| | - Karen Hermetz
- Gangarosa Department of Environmental Health, Rollins School of Public Health, Emory University, Atlanta, Georgia, USA
| | - Amber Burt
- Gangarosa Department of Environmental Health, Rollins School of Public Health, Emory University, Atlanta, Georgia, USA
| | - Todd M. Everson
- Gangarosa Department of Environmental Health, Rollins School of Public Health, Emory University, Atlanta, Georgia, USA
| | - Tracy Punshon
- Department of Biological Sciences, Dartmouth College, Hanover, New Hampshire, USA
| | - Brian P. Jackson
- Department of Earth Sciences, Dartmouth College, Hanover, New Hampshire, USA
| | - Ke Hao
- Department of Genetics and Genome Sciences, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Jia Chen
- Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Margaret R. Karagas
- Department of Epidemiology, Geisel School of Medicine, Dartmouth College, Hanover, New Hampshire, USA
- Children’s Environmental Health and Disease Prevention Research Center at Dartmouth, Dartmouth College, Hanover, New Hampshire, USA
| | - Devin C. Koestler
- The University Kansas Cancer Center, The University of Kansas Medical Center, Kansas City, Kansas, USA
- Department of Biostatistics & Data Science, The University of Kansas Medical Center, Kansas City, Kansas, USA
| | - Carmen Marsit
- Gangarosa Department of Environmental Health, Rollins School of Public Health, Emory University, Atlanta, Georgia, USA
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Wang X, Qian J, Meng Y, Wang P, Cheng R, Zhou G, Zhu S, Liu C. Salidroside alleviates severe acute pancreatitis-triggered pancreatic injury and inflammation by regulating miR-217-5p/YAF2 axis. Int Immunopharmacol 2022; 111:109123. [PMID: 35963157 DOI: 10.1016/j.intimp.2022.109123] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Revised: 07/28/2022] [Accepted: 07/31/2022] [Indexed: 11/26/2022]
Abstract
BACKGROUND Our previous studies have shown that salidroside (Sal) exerted a protective effect in severe acute pancreatitis (SAP) via inhibiting the inflammatory response. However, the molecular mechanism has not been fully elucidated. METHODS Using SAP rat model and miRNA microarray, the effect of Sal on miRNA expression profiling was determined and then validated their changes by quantitative Real-time PCR (qRT-PCR). Then, SAP cell model, enzyme-linked immunosorbent assay (ELISA) and Cell Counting Kit-8 (CCK-8) assay were used to explore the biological function of miR-217-5p in vitro. Bioinformatics analysis, luciferase reporter assay and miRNA pulldown assay were performed to investigate the underlying mechanism of miR-217-5p in the protection of Sal against SAP. RESULTS Compared with SAP group, 21 differentially expressed miRNAs were identified in SAP + Sal group. The target genes of these miRNAs were strongly associated with regulation of transcription, Axon guidance, Pathways in cancer and MAPK signaling pathway. Among these miRNAs, miR-217-5p was the most downregulated miRNA. Sal treatment alleviated cell injury and reduced the production of pro-inflammatory cytokines. Whereas overexpression of miR-217-5p reversed the effects of Sal. We identified YY1 associated factor 2 (YAF2) as a direct target gene of miR-217-5p and Sal treatment could upregulate YAF2 expression via targeting miR-217-5p. Furthermore, knockdown of YAF2 counteracted Sal-induced alleviation of cell injury and inflammation. Moreover, Sal could suppress the activation of p38 MAPK pathway by regulating miR-217-5p/YAF2 axis. CONCLUSIONS Our findings for the first time highlighted that Sal alleviated pancreatic injury and inhibited inflammation by regulating miR-217-5p/YAF2 axis, which might provide new therapeutic strategies for SAP treatment.
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Affiliation(s)
- Xiaohong Wang
- Department of Gastroenterology, Yizheng Hospital of Nanjing Drum Tower Hospital Group, Yizheng 211900, Jiangsu, China.
| | - Jing Qian
- Department of General Surgery, Yizheng Hospital of Nanjing Drum Tower Hospital Group, Yizheng 211900, Jiangsu, China
| | - Yun Meng
- Department of Gastroenterology, Yizheng Hospital of Nanjing Drum Tower Hospital Group, Yizheng 211900, Jiangsu, China
| | - Ping Wang
- Department of Gastroenterology, Yizheng Hospital of Nanjing Drum Tower Hospital Group, Yizheng 211900, Jiangsu, China
| | - Ruizhi Cheng
- Department of Gastroenterology, Yizheng Hospital of Nanjing Drum Tower Hospital Group, Yizheng 211900, Jiangsu, China
| | - Guoxiong Zhou
- Department of Gastroenterology, Affiliated Hospital of Nantong University, Nantong 226001, Jiangsu, China
| | - Shunxing Zhu
- Laboratory Animal Center of Nantong University, Nantong 226001, Jiangsu, China
| | - Chun Liu
- Laboratory Animal Center of Nantong University, Nantong 226001, Jiangsu, China
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Gao YN, Yang X, Wang JQ, Liu HM, Zheng N. Multi-Omics Reveal Additive Cytotoxicity Effects of Aflatoxin B1 and Aflatoxin M1 toward Intestinal NCM460 Cells. Toxins (Basel) 2022; 14:toxins14060368. [PMID: 35737029 PMCID: PMC9231300 DOI: 10.3390/toxins14060368] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Revised: 05/09/2022] [Accepted: 05/10/2022] [Indexed: 12/18/2022] Open
Abstract
Aflatoxin B1 (AFB1) is a common crop contaminant, while aflatoxin M1 (AFM1) is implicated in milk safety. Humans are likely to be simultaneously exposed to AFB1 and AFM1; however, studies on the combined interactive effects of AFB1 and AFM1 are lacking. To fill this knowledge gap, transcriptomic, proteomic, and microRNA (miRNA)-sequencing approaches were used to investigate the toxic mechanisms underpinning combined AFB1 and AFM1 actions in vitro. Exposure to AFB1 (1.25–20 μM) and AFM1 (5–20 μM) for 48 h significantly decreased cell viability in the intestinal cell line, NCM460. Multi-omics analyses demonstrated that additive toxic effects were induced by combined AFB1 (2.5 μM) and AFM1 (2.5 μM) in NCM460 cells and were associated with p53 signaling pathway, a common pathway enriched by differentially expressed mRNAs/proteins/miRNAs. Specifically, based on p53 signaling, cross-omics showed that AFB1 and AFM1 reduced NCM460 cell viability via the hsa-miR-628-3p- and hsa-miR-217-5p-mediated regulation of cell surface death receptor (FAS), and also the hsa-miR-11-y-mediated regulation of cyclin dependent kinase 2 (CDK2). We provide new insights on biomarkers which reflect the cytotoxic effects of combined AFB1 and AFM1 toxicity.
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Affiliation(s)
- Ya-Nan Gao
- Key Laboratory of Quality & Safety Control for Milk and Dairy Products of Ministry of Agriculture and Rural Affairs, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China; (Y.-N.G.); (X.Y.); (J.-Q.W.); (H.-M.L.)
- Laboratory of Quality and Safety Risk Assessment for Dairy Products of Ministry of Agriculture and Rural Affairs, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China
- Milk and Milk Products Inspection Center of Ministry of Agriculture and Rural Affairs, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China
- State Key Laboratory of Animal Nutrition, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Xue Yang
- Key Laboratory of Quality & Safety Control for Milk and Dairy Products of Ministry of Agriculture and Rural Affairs, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China; (Y.-N.G.); (X.Y.); (J.-Q.W.); (H.-M.L.)
- Laboratory of Quality and Safety Risk Assessment for Dairy Products of Ministry of Agriculture and Rural Affairs, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China
- Milk and Milk Products Inspection Center of Ministry of Agriculture and Rural Affairs, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China
- State Key Laboratory of Animal Nutrition, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Jia-Qi Wang
- Key Laboratory of Quality & Safety Control for Milk and Dairy Products of Ministry of Agriculture and Rural Affairs, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China; (Y.-N.G.); (X.Y.); (J.-Q.W.); (H.-M.L.)
- Laboratory of Quality and Safety Risk Assessment for Dairy Products of Ministry of Agriculture and Rural Affairs, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China
- Milk and Milk Products Inspection Center of Ministry of Agriculture and Rural Affairs, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China
- State Key Laboratory of Animal Nutrition, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Hui-Min Liu
- Key Laboratory of Quality & Safety Control for Milk and Dairy Products of Ministry of Agriculture and Rural Affairs, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China; (Y.-N.G.); (X.Y.); (J.-Q.W.); (H.-M.L.)
- Laboratory of Quality and Safety Risk Assessment for Dairy Products of Ministry of Agriculture and Rural Affairs, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China
- Milk and Milk Products Inspection Center of Ministry of Agriculture and Rural Affairs, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China
- State Key Laboratory of Animal Nutrition, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Nan Zheng
- Key Laboratory of Quality & Safety Control for Milk and Dairy Products of Ministry of Agriculture and Rural Affairs, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China; (Y.-N.G.); (X.Y.); (J.-Q.W.); (H.-M.L.)
- Laboratory of Quality and Safety Risk Assessment for Dairy Products of Ministry of Agriculture and Rural Affairs, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China
- Milk and Milk Products Inspection Center of Ministry of Agriculture and Rural Affairs, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China
- State Key Laboratory of Animal Nutrition, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China
- Correspondence: ; Tel.: +86-10-62816069
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Singh MV, Dhanabalan K, Verry J, Dokun AO. MicroRNA regulation of BAG3. Exp Biol Med (Maywood) 2022; 247:617-623. [PMID: 35037515 PMCID: PMC9039493 DOI: 10.1177/15353702211066908] [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] [Indexed: 11/15/2022] Open
Abstract
B-cell lymphoma 2 (Bcl-2)-associated athanogene 3 (BAG3) protein is a member of BAG family of co-chaperones that modulates major biological processes, including apoptosis, autophagy, and development to promote cellular adaptive responses to stress stimuli. Although BAG3 is constitutively expressed in several cell types, its expression is also inducible and is regulated by microRNAs (miRNAs). miRNAs are small non-coding RNAs that mostly bind to the 3'-UTR (untranslated region) of mRNAs to inhibit their translation or to promote their degradation. miRNAs can potentially regulate over 50% of the protein-coding genes in a cell and therefore are involved in the regulation of all major functions, including cell differentiation, growth, proliferation, apoptosis, and autophagy. Dysregulation of miRNA expression is associated with pathogenesis of numerous diseases, including peripheral artery disease (PAD). BAG3 plays a critical role in regulating the response of skeletal muscle cells to ischemia by its ability to regulate autophagy. However, the biological role of miRNAs in the regulation of BAG3 in biological processes has only been elucidated recently. In this review, we discuss how miRNA may play a key role in regulating BAG3 expression under normal and pathological conditions.
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Affiliation(s)
- Madhu V Singh
- Division of Endocrinology and Metabolism, Department of Internal Medicine, University of Iowa, Iowa City, IA 52242, USA
| | - Karthik Dhanabalan
- Division of Endocrinology and Metabolism, Department of Internal Medicine, University of Iowa, Iowa City, IA 52242, USA
| | - Joseph Verry
- Division of Endocrinology and Metabolism, Department of Internal Medicine, University of Iowa, Iowa City, IA 52242, USA
| | - Ayotunde O Dokun
- Division of Endocrinology and Metabolism, Department of Internal Medicine, University of Iowa, Iowa City, IA 52242, USA
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Liu T, Lin S, Du Y, Gong Y, Li S. SpBAG3 assisted WSSV infection in mud crab (Scylla paramamosain) by inhibiting apoptosis. DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY 2022; 129:104349. [PMID: 35007655 DOI: 10.1016/j.dci.2022.104349] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Revised: 01/05/2022] [Accepted: 01/06/2022] [Indexed: 06/14/2023]
Abstract
The function of B-cell lymphoma-2 (Bcl-2) family proteins can be divided into two categories: anti-apoptotic and pro-apoptotic. As an anti-apoptotic protein, Bcl2-associated athanogene 3 (BAG3) plays a key role in regulating apoptosis, development, cell movement, and autophagy, and mediating the adaptability of cells to stimulation. However, SpBAG3 has not been reported in mud crab (Scylla paramamosain), and the regulatory effect of SpBAG3 on apoptosis in mud crab and its function in antiviral immunity is still unknown. In this study, SpBAG3 was found, and characterized, which encoded a total of 175 amino acid (molecular mass 19.3 kDa), including a specific conserved domain of the BAG family. SpBAG3 was significantly down-regulated at 0-48 h post-infection with WSSV in vivo. The antiviral effect of SpBAG3 was investigated using RNA interference. The results indicated that SpBAG3 might be involved in assisting the replication of WSSV in the host. SpBAG3 could change the mitochondrial membrane potential (△ψm), and affect cell apoptosis through mitochondrial apoptotic pathways. Therefore, the results of this study suggested that SpBAG3 could assist WSSV infection by inhibiting the apoptosis of the hemocytes in mud crab.
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Affiliation(s)
- Ting Liu
- Guangdong Provincial Key Laboratory of Marine Biology, Shantou University, Shantou, 515063, China; Marine Biology Institute, Shantou University, Shantou, 515063, China; STU-UMT Joint Shellfish Research Laboratory, Shantou University, Shantou, 515063, China
| | - Shanmeng Lin
- Guangdong Provincial Key Laboratory of Marine Biology, Shantou University, Shantou, 515063, China; Marine Biology Institute, Shantou University, Shantou, 515063, China; STU-UMT Joint Shellfish Research Laboratory, Shantou University, Shantou, 515063, China
| | - Yaoyao Du
- Guangdong Provincial Key Laboratory of Marine Biology, Shantou University, Shantou, 515063, China; Marine Biology Institute, Shantou University, Shantou, 515063, China; STU-UMT Joint Shellfish Research Laboratory, Shantou University, Shantou, 515063, China
| | - Yi Gong
- Guangdong Provincial Key Laboratory of Marine Biology, Shantou University, Shantou, 515063, China; Marine Biology Institute, Shantou University, Shantou, 515063, China; STU-UMT Joint Shellfish Research Laboratory, Shantou University, Shantou, 515063, China.
| | - Shengkang Li
- Guangdong Provincial Key Laboratory of Marine Biology, Shantou University, Shantou, 515063, China; Marine Biology Institute, Shantou University, Shantou, 515063, China; STU-UMT Joint Shellfish Research Laboratory, Shantou University, Shantou, 515063, China.
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12
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Lian J, Xu C, Chen X, Huang S, Wu D. Histone methyltransferase KMT2C plays an oncogenic role in prostate cancer. J Cancer Res Clin Oncol 2022; 148:1627-1640. [PMID: 35322299 DOI: 10.1007/s00432-022-03968-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Accepted: 02/21/2022] [Indexed: 01/10/2023]
Abstract
PURPOSE Prostate cancer (PCa) is a leading cause of morbidity and mortality in males. Epigenetic modifier abnormalities are becoming a driving event in PCa. The specific role of KMT2C, a histone methyltransferase that is frequently aberrant in various tumors, is poorly understood in PCa. This study aimed to reveal the potential carcinogenic role of KMT2C in PCa. METHODS We first examined the expression levels of KMT2C in prostate cancer tissues. Then, we assessed the function of KMT2C in prostate cancer cell proliferation, colony formation, and migration. To explore the mechanism of the biological consequences, RNA-seq and CHIP-qPCR were performed. We also analyzed the effects of overexpression of the KMT2C downstream genes CLDN8 and ITGAV to reverse the effects of KMT2C on prostate cancer cells. RESULTS Herein, we first confirmed KMT2C overexpression in PCa at the transcript and protein levels. Knocking down KMT2C in VCaP and LNCaP cells inhibited cell viability, colony formation, and migration. Consistently, stable KMT2C depletion effectively decreased tumor growth by approximately 70% in vivo. Mechanistically, the results suggested that CLDN8 and ITGAV are two key downstream genes of KMT2C and further regulate the MAPK/ERK and EMT pathways. CONCLUSION Our study suggests that KMT2C plays an oncogenic role in PCa. One of the mechanisms may be the epigenetic regulation of CLDN8 and ITGAV by KMT2C to modulate tumor-signaling pathways. Therefore, KMT2C may serve as a potential therapeutic target for PCa patients.
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Affiliation(s)
- Jianpo Lian
- Department of Urology, Tongji Hospital, School of Medicine, Tongji University, Shanghai, 200065, China
| | - Chengdang Xu
- Department of Urology, Tongji Hospital, School of Medicine, Tongji University, Shanghai, 200065, China
| | - Xi Chen
- Department of Urology, Tongji Hospital, School of Medicine, Tongji University, Shanghai, 200065, China
| | - Shengsong Huang
- Department of Urology, Tongji Hospital, School of Medicine, Tongji University, Shanghai, 200065, China.
| | - Denglong Wu
- Department of Urology, Tongji Hospital, School of Medicine, Tongji University, Shanghai, 200065, China.
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13
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Wang Z, Yang L, Wu P, Li X, Tang Y, Ou X, Zhang Y, Xiao X, Wang J, Tang H. The circROBO1/KLF5/FUS feedback loop regulates the liver metastasis of breast cancer by inhibiting the selective autophagy of afadin. Mol Cancer 2022; 21:29. [PMID: 35073911 PMCID: PMC8785480 DOI: 10.1186/s12943-022-01498-9] [Citation(s) in RCA: 58] [Impact Index Per Article: 29.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Accepted: 01/03/2022] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND Metastasis causes the majority of cancer-related deaths worldwide. Increasing studies have revealed that circRNAs are associated with the carcinogenesis and metastasis of many cancers. Nevertheless, the biological mechanisms of circRNAs in breast cancer (BC) liver metastasis remain extremely ambiguous. METHODS In this study, we identified circROBO1 from three pairs of primary BC and metastatic liver sites by RNA sequencing. FISH assays and RT-qPCR were conducted to validate the existence and expression of circROBO1. The oncogenic role of circROBO1 was demonstrated both in vitro and in vivo. Western blot, ChIP, RIP, RNA pull-down, and dual-luciferase reporter assays were used to confirm the interaction of the feedback loop among circROBO1, miR-217-5p, KLF5, and FUS. Meanwhile, the regulation of selective autophagy was investigated by immunofluorescence, CoIP, and western blot. RESULTS In this study, upregulated expression of circROBO1 was found in BC-derived liver metastases and was correlated with poor prognosis. Knockdown of circROBO1 strikingly inhibited the proliferation, migration, and invasion of BC cells, whereas overexpression of circROBO1 showed the opposite effects. Moreover, overexpression of circROBO1 promoted tumor growth and liver metastasis in vivo. Further research revealed that circROBO1 could upregulate KLF5 by sponging miR-217-5p, allowing KLF5 to activate the transcription of FUS, which would promote the back splicing of circROBO1. Therefore, a positive feedback loop comprising circROBO1/KLF5/FUS was formed. More importantly, we found that circROBO1 inhibited selective autophagy of afadin by upregulating KLF5. CONCLUSIONS Our results demonstrated that circROBO1 facilitates the carcinogenesis and liver metastasis of BC through the circROBO1/KLF5/FUS feedback loop, which inhibits the selective autophagy of afadin by suppressing the transcription of BECN1. Therefore, circROBO1 could be used not only as a potential prognostic marker but also as a therapeutic target in BC.
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Affiliation(s)
- Zehao Wang
- Department of Breast Oncology, Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Guangzhou, China
| | - Lu Yang
- Department of Radiotherapy, Cancer Center, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Peng Wu
- Department of Breast Oncology, Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Guangzhou, China
| | - Xing Li
- Department of Breast Oncology, Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Guangzhou, China
| | - Yuhui Tang
- Department of Breast Oncology, Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Guangzhou, China
| | - Xueqi Ou
- Department of Breast Oncology, Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Guangzhou, China
| | - Yue Zhang
- Department of Breast Oncology, Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Guangzhou, China
| | - Xiangsheng Xiao
- Department of Breast Oncology, Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Guangzhou, China.
| | - Jin Wang
- Department of Breast Oncology, Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Guangzhou, China.
| | - Hailin Tang
- Department of Breast Oncology, Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Guangzhou, China.
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Hamidi AA, Zangoue M, Kashani D, Zangouei AS, Rahimi HR, Abbaszadegan MR, Moghbeli M. MicroRNA-217: a therapeutic and diagnostic tumor marker. Expert Rev Mol Diagn 2021; 22:61-76. [PMID: 34883033 DOI: 10.1080/14737159.2022.2017284] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
INTRODUCTION Cancer as one of the most common causes of death has always been one of the major health challenges globally. Since, the identification of tumors in the early tumor stages can significantly reduce mortality rates; it is required to introduce novel early detection tumor markers. MicroRNAs (miRNAs) have pivotal roles in regulation of cell proliferation, migration, apoptosis, and tumor progression. Moreover, due to the higher stability of miRNAs than mRNAs in body fluids, they can be considered as non-invasive diagnostic or prognostic markers in cancer patients. AREAS COVERED In the present review we have summarized the role of miR-217 during tumor progressions. The miR-217 functions were categorized based on its target molecular mechanisms and signaling pathways. EXPERT OPINION It was observed that miR-217 mainly exerts its function by regulation of the transcription factors during tumor progressions. The WNT, MAPK, and PI3K/AKT signaling pathways were also important molecular targets of miR-217 in different cancers. The present review clarifies the molecular biology of miR-217 and paves the way of introducing miR-217 as a non-invasive diagnostic marker and therapeutic target in cancer therapy.
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Affiliation(s)
- Amir Abbas Hamidi
- Student Research Committee, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Malihe Zangoue
- Department of Anesthesiology, Faculty of Medicine, Birjand University of Medical Sciences, Birjand, Iran
| | - Daniel Kashani
- Department of Internal Medicine, State University of New York, Downstate Medical Center, Brooklyn, NY, USA
| | - Amir Sadra Zangouei
- Student Research Committee, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Hamid Reza Rahimi
- Department of Medical Genetics and Molecular Medicine, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | | | - Meysam Moghbeli
- Department of Medical Genetics and Molecular Medicine, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
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Zhang LC, Wu XY, Yang RB, Chen F, Liu JH, Hu YY, Wu ZD, Wang LF, Sun X. Recombinant protein Schistosoma japonicum-derived molecule attenuates dextran sulfate sodium-induced colitis by inhibiting miRNA-217-5p to alleviate apoptosis. World J Gastroenterol 2021; 27:7982-7994. [PMID: 35046625 PMCID: PMC8678816 DOI: 10.3748/wjg.v27.i46.7982] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Revised: 07/09/2021] [Accepted: 11/29/2021] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Inflammatory bowel disease (IBD) affects millions of people worldwide and has emerged as a growing problem in industrialized nations. The lack of therapeutic targets has limited the treatment of IBD. Studies found that parasitic nematode infections can ameliorate clinical and experimental colitis. Our previous study found that rSj16, a 16-kDa secreted protein of Schistosoma japonicum produced by Escherichia coli, has protective effects on dextran sulfate sodium (DSS)-induced colitis in mice. Apoptosis is an important factor in the pathogenesis of colitis. However, it is not clear whether the effect of rSj16 on colitis is related to apoptosis.
AIM To investigate whether the protective effects of rSj16 on colitis is related to apoptosis and its mechanism.
METHODS In-vivo, colitis was induced by DSS. The severity of colitis was assessed. WB was used to detect the changes of apoptosis-related genes in colon tissues. Q-PCR was used to detect the changes of miRNA-217-5p and HNF1B. In-vitro, WB was used to detect the changes of apoptosis-related genes in intestinal epithelial cells. TUNNEL staining and flow cytometry were used to detect cell apoptosis.
RESULTS rSj16 attenuates clinical activity in DSS-induced colitis mice. TUNNEL staining and WB results showed that apoptosis was increased in colon tissue after treatment with DSS, and the apoptosis of colon tissue was significantly reduced after treatment with rSj16. Compared with normal mice, the expression of miR-217-5p was increased in colon tissue of DSS-induced colitis mice. In addition, the miR-217-5p target gene hnf1b was decreased after administration of DSS. After treatment with rSj16, the expression of miR-217-5p was decreased and the expression of HNF1B was increased compared with the DSS-treated group. When Etoposide was used in combination with miR-217-5p mimic on MODE-K cells, the expression of cleaved-Caspase-3 and Bax was increased, and Bcl-2 was decreased compared with only Etoposide treatment, the expression of HNF1B was significantly reduced, suggesting that miR-217-5p acts as a pro-apoptotic in colon epithelial cells and down-regulates the target gene hnf1b. After rSj16 administration in MODE-K cells, miR-217-5p expression was significantly decreased, HNF1B expression was increased, and apoptosis was reduced.
CONCLUSION The protective effects of rSj16 on colitis is related to apoptosis and miRNA-217-5p may be a further target for therapeutic intervention against IBD.
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Affiliation(s)
- Li-Chao Zhang
- Department of Parasitology of Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou 510000, Guangdong Province, China
| | - Xiao-Ying Wu
- Department of Gastroenterology, Third Affiliated Hospital of Sun Yat-sen University, Guangzhou 510630, Guangdong Province, China
| | - Rui-Bing Yang
- Department of Parasitology of Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou 510000, Guangdong Province, China
| | - Fang Chen
- School of Medicine, South China University of Technology, South China University of Technology, Guangzhou 510000, Guangdong Province, China
| | - Jia-Hua Liu
- Department of Parasitology of Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou 510000, Guangdong Province, China
| | - Yun-Yi Hu
- Department of Parasitology of Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou 510000, Guangdong Province, China
| | - Zhong-Dao Wu
- Department of Parasitology of Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou 510000, Guangdong Province, China
| | - Li-Fu Wang
- Key Laboratory of Tropical Disease Control, Ministry of Education, Sun Yat-sen University, Guangzhou 510080, Guangdong Province, China
| | - Xi Sun
- Department of Parasitology of Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou 510000, Guangdong Province, China
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Xiong H, Yu H, Jia G, Yu J, Su Y, Zhang J, Zhou J. circZFR regulates thyroid cancer progression by the miR-16/MAPK1 axis. ENVIRONMENTAL TOXICOLOGY 2021; 36:2236-2244. [PMID: 34323000 DOI: 10.1002/tox.23337] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Revised: 07/12/2021] [Accepted: 07/17/2021] [Indexed: 06/13/2023]
Abstract
Previous studies have identified the dysregulation of various circRNAs in many types of human cancers including thyroid cancer (TC). Circular RNA ZFR (circZFR) serves as an oncogenic circRNA in TC. However, the detailed molecular mechanism of circZFR in TC progression remains to be further explored. CircZFR and miR-16 expressions in TC cells were analyzed through qRT-PCR. Cell viability, invasion, and apoptosis were detected using CCK-8, transwell invasion assay, and flow cytometry analysis, respectively. The relationship between circZFR and miR-16 was explored using luciferase reporter assay, RNA pull-down assay, and qRT-PCR. The relationship between miR-16 and mitogen-activated protein kinase 1 (MAPK1) was explored using luciferase reporter assay and western blot analysis. Results showed that circZFR was upregulated and miR-16 was downregulated in TC cells. CircZFR knockdown inhibited the viability and invasion and induced apoptosis in TC cells. CircZFR inhibited miR-16 expression by sponging miR-16 and miR-16 repressed MAPK1 expression by targeting MAPK1. Moreover, circZFR positively regulated MAPK1 expression in TC cells by serving as a ceRNA of miR-16. Mechanistically, circZFR knockdown-induced inhibition of cell viability and invasion and promotion of apoptosis were overturned after miR-16 downregulation and promotion of MAPK1. Collectively, circZFR knockdown retarded TC progression by sponging miR-16 and modulating MAPK1 expression.
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Affiliation(s)
- Hui Xiong
- Department of Thyroid and Breast Surgery, Nanyang First People's Hospital, Nanyang, China
- Key Laboratory of Thyroid Tumor Prevention and Treatment, Nanyang First People's Hospital, Nanyang, China
| | - Huimei Yu
- Department of Endocrinology, Huaiyin Hospital, Huai'an, China
| | - Guangwei Jia
- Department of Thyroid and Breast Surgery, Nanyang First People's Hospital, Nanyang, China
| | - Jinsong Yu
- Key Laboratory of Thyroid Tumor Prevention and Treatment, Nanyang First People's Hospital, Nanyang, China
- Department of General Surgery, Nanyang First People's Hospital, Nanyang, China
| | - Yang Su
- Department of Thyroid and Breast Surgery, Nanyang First People's Hospital, Nanyang, China
| | - Jianliang Zhang
- Department of Thyroid and Breast Surgery, Nanyang First People's Hospital, Nanyang, China
| | - Jin Zhou
- Department of Ultrasound Imaging, The Affiliated Huai'an Hospital of Xuzhou Medical University, The Second People's Hospital of Huai'an, Huai'an, China
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Li Y, Tian M, Zhang D, Zhuang Y, Li Z, Xie S, Sun K. Long Non-Coding RNA Myosin Light Chain Kinase Antisense 1 Plays an Oncogenic Role in Gallbladder Carcinoma by Promoting Chemoresistance and Proliferation. Cancer Manag Res 2021; 13:6219-6230. [PMID: 34393514 PMCID: PMC8357316 DOI: 10.2147/cmar.s323759] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Accepted: 07/29/2021] [Indexed: 12/20/2022] Open
Abstract
Background Long non-coding RNAs (lncRNAs) have been reported to play critical roles in human tumours, including gallbladder carcinoma (GBC). However, their biological functions and molecular mechanisms in tumorigenesis and progression remain largely unknown. Methods Quantitative polymerase chain reaction (qPCR) was used to verify the expression of lncRNA myosin light chain kinase antisense RNA 1 (MYLK-AS1) in 120 pairs of GBC tissues and paired adjacent non-tumour tissues, as well as in six different GBC cell lines (NOZ, EH-GB1, OCUG-1, GBC-SD, SGC-996 and QBC-939). Cell counting kit 8 was applied to explore cell proliferation and drug sensitivity assays. The target miRNAs (miR) of MYLK-AS1 and downstream target genes were predicted using Starbase 3.0 software and confirmed by double luciferase reporting test. The expression of proteins was assessed using Western blot assay. Results Here, we demonstrated that MYLK-AS1 was significantly upregulated and correlated with a poor prognosis and poor clinical characteristics in GBC. Furthermore, the forced expression of MYLK-AS1 significantly promoted GBC cell proliferation and resistance to gemcitabine in vitro. Mechanistically, MYLK-AS1 functioned as an efficient miR-217 sponge, thereby releasing the inhibition of enhancer of zeste 2 polycomb repressive complex 2 (EZH2) subunit expression. MYLK-AS1 promoted GBC cell proliferation and resistance to gemcitabine by upregulating EZH2 expression, and EZH2 was confirmed as a direct target of miR-217. Discussion Our results confirmed that the chemoresistant driver MYLK-AS1 might be a promising candidate as a therapeutic target for the treatment of advanced GBC.
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Affiliation(s)
- Yongliang Li
- Department of Emergency, Minhang Hospital, Fudan University, Shanghai, 200040, People's Republic of China
| | - Mi Tian
- Department of Intensive Care Unit, Huashan Hospital, Fudan University, Shanghai, 200040, People's Republic of China
| | - Dongqing Zhang
- Department of Emergency, Minhang Hospital, Fudan University, Shanghai, 200040, People's Republic of China
| | - Yifei Zhuang
- Department of Emergency, Minhang Hospital, Fudan University, Shanghai, 200040, People's Republic of China
| | - Zhimin Li
- Department of Emergency, Minhang Hospital, Fudan University, Shanghai, 200040, People's Republic of China
| | - Shenqi Xie
- Department of Emergency, Minhang Hospital, Fudan University, Shanghai, 200040, People's Republic of China
| | - Keyu Sun
- Department of Emergency, Minhang Hospital, Fudan University, Shanghai, 200040, People's Republic of China
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Laskaratos FM, Levi A, Schwach G, Pfragner R, Hall A, Xia D, von Stempel C, Bretherton J, Thanapirom K, Alexander S, Ogunbiyi O, Watkins J, Luong TV, Toumpanakis C, Mandair D, Caplin M, Rombouts K. Transcriptomic Profiling of In Vitro Tumor-Stromal Cell Paracrine Crosstalk Identifies Involvement of the Integrin Signaling Pathway in the Pathogenesis of Mesenteric Fibrosis in Human Small Intestinal Neuroendocrine Neoplasms. Front Oncol 2021; 11:629665. [PMID: 33718208 PMCID: PMC7943728 DOI: 10.3389/fonc.2021.629665] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2020] [Accepted: 01/15/2021] [Indexed: 12/22/2022] Open
Abstract
Aim Analysis of the pathophysiology of mesenteric fibrosis (MF) in small intestinal neuroendocrine tumors (SI-NETs) in an in vitro paracrine model and in human SI-NET tissue samples. Methods An indirect co-culture model of SI-NET cells KRJ-I and P-STS with stromal cells HEK293 was designed to evaluate the paracrine effects on cell metabolic activity, gene expression by RT2 PCR Profilers to analyse cancer and fibrosis related genes, and RNA sequencing. The integrin signaling pathway, a specific Ingenuity enriched pathway, was further explored in a cohort of human SI-NET tissues by performing protein analysis and immunohistochemistry. Results RT Profiler array analysis demonstrated several genes to be significantly up- or down-regulated in a cell specific manner as a result of the paracrine effect. This was further confirmed by employing RNA sequencing revealing multiple signaling pathways involved in carcinogenesis and fibrogenesis that were significantly affected in these cell lines. A significant upregulation in the expression of various integrin pathway – related genes was identified in the mesenteric mass of fibrotic SI-NET as confirmed by RT-qPCR and immunohistochemistry. Protein analysis demonstrated downstream activation of the MAPK and mTOR pathways in some patients with fibrotic SI-NETs. Conclusion This study has provided the first comprehensive analysis of the crosstalk of SI-NET cells with stromal cells. A novel pathway – the integrin pathway – was identified and further validated and confirmed in a cohort of human SI-NET tissue featured by a dual role in fibrogenesis/carcinogenesis within the neoplastic fibrotic microenvironment.
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Affiliation(s)
- Faidon-Marios Laskaratos
- Neuroendocrine Tumour Unit, ENETS Centre of Excellence, Royal Free London NHS Foundation Trust, London, United Kingdom.,Regenerative Medicine and Fibrosis Group, Institute for Liver and Digestive Health, Royal Free Hospital, University College London, London, United Kingdom
| | - Ana Levi
- Regenerative Medicine and Fibrosis Group, Institute for Liver and Digestive Health, Royal Free Hospital, University College London, London, United Kingdom
| | - Gert Schwach
- Otto Loewi Research Center, Medical University of Graz, Graz, Austria
| | - Roswitha Pfragner
- Otto Loewi Research Center, Medical University of Graz, Graz, Austria
| | - Andrew Hall
- Academic Centre for Cellular Pathology, Royal Free London NHS Foundation Trust, London, United Kingdom
| | - Dong Xia
- Royal Veterinary College, University of London, London, United Kingdom
| | - Conrad von Stempel
- Radiology Department, Royal Free London NHS Foundation Trust, London, United Kingdom
| | - Josephine Bretherton
- Radiology Department, Royal Free London NHS Foundation Trust, London, United Kingdom
| | - Kessarin Thanapirom
- Regenerative Medicine and Fibrosis Group, Institute for Liver and Digestive Health, Royal Free Hospital, University College London, London, United Kingdom
| | - Sarah Alexander
- Academic Centre for Cellular Pathology, Royal Free London NHS Foundation Trust, London, United Kingdom
| | - Olagunju Ogunbiyi
- Department of Colorectal Surgery, Royal Free London NHS Foundation Trust, London, United Kingdom
| | - Jennifer Watkins
- Academic Centre for Cellular Pathology, Royal Free London NHS Foundation Trust, London, United Kingdom
| | - Tu Vinh Luong
- Academic Centre for Cellular Pathology, Royal Free London NHS Foundation Trust, London, United Kingdom
| | - Christos Toumpanakis
- Neuroendocrine Tumour Unit, ENETS Centre of Excellence, Royal Free London NHS Foundation Trust, London, United Kingdom
| | - Dalvinder Mandair
- Neuroendocrine Tumour Unit, ENETS Centre of Excellence, Royal Free London NHS Foundation Trust, London, United Kingdom
| | - Martyn Caplin
- Neuroendocrine Tumour Unit, ENETS Centre of Excellence, Royal Free London NHS Foundation Trust, London, United Kingdom
| | - Krista Rombouts
- Regenerative Medicine and Fibrosis Group, Institute for Liver and Digestive Health, Royal Free Hospital, University College London, London, United Kingdom
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Cantile M, Di Bonito M, Tracey De Bellis M, Botti G. Functional Interaction among lncRNA HOTAIR and MicroRNAs in Cancer and Other Human Diseases. Cancers (Basel) 2021; 13:cancers13030570. [PMID: 33540611 PMCID: PMC7867281 DOI: 10.3390/cancers13030570] [Citation(s) in RCA: 58] [Impact Index Per Article: 19.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Revised: 01/22/2021] [Accepted: 01/28/2021] [Indexed: 02/06/2023] Open
Abstract
Simple Summary This review aimed to describe the contribution of functional interaction between the lncRNA HOTAIR and microRNAs in human diseases, including cancer. HOTAIR/miRNAs complexes interfere with different cellular processes during carcinogenesis, mainly deregulating a series of oncogenic signaling pathways. A great number of ncRNAs-related databases have been established, supported by bioinformatics technologies, to identify the ncRNA-mediated sponge regulatory network. These approaches need experimental validation through cells and animal models studies. The optimization of systems to interfere with HOTAIR/miRNAs interplay could represent a new tool for the definition of diagnostic therapeutics in cancer patients. Abstract LncRNAs are a class of non-coding RNAs mostly involved in regulation of cancer initiation, metastatic progression, and drug resistance, through participation in post-transcription regulatory processes by interacting with different miRNAs. LncRNAs are able to compete with endogenous RNAs by binding and sequestering miRNAs and thereby regulating the expression of their target genes, often represented by oncogenes. The lncRNA HOX transcript antisense RNA (HOTAIR) represents a diagnostic, prognostic, and predictive biomarker in many human cancers, and its functional interaction with miRNAs has been described as crucial in the modulation of different cellular processes during cancer development. The aim of this review is to highlight the relation between lncRNA HOTAIR and different microRNAs in human diseases, discussing the contribution of these functional interactions, especially in cancer development and progression.
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Affiliation(s)
- Monica Cantile
- Pathology Unit, Istituto Nazionale Tumori-Irccs-Fondazione G.Pascale, 80131 Naples, Italy;
- Correspondence: ; Tel.: +39-081-590-3471; Fax: +39-081-590-3718
| | - Maurizio Di Bonito
- Pathology Unit, Istituto Nazionale Tumori-Irccs-Fondazione G.Pascale, 80131 Naples, Italy;
| | - Maura Tracey De Bellis
- Scientific Direction, Istituto Nazionale Tumori-Irccs-Fondazione G.Pascale, 80131 Naples, Italy; (M.T.D.B.); (G.B.)
| | - Gerardo Botti
- Scientific Direction, Istituto Nazionale Tumori-Irccs-Fondazione G.Pascale, 80131 Naples, Italy; (M.T.D.B.); (G.B.)
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Zhang N, Hu X, Du Y, Du J. The role of miRNAs in colorectal cancer progression and chemoradiotherapy. Biomed Pharmacother 2021; 134:111099. [DOI: 10.1016/j.biopha.2020.111099] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2020] [Revised: 11/17/2020] [Accepted: 12/02/2020] [Indexed: 02/07/2023] Open
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Joshi H, Vastrad B, Joshi N, Vastrad C, Tengli A, Kotturshetti I. Identification of Key Pathways and Genes in Obesity Using Bioinformatics Analysis and Molecular Docking Studies. Front Endocrinol (Lausanne) 2021; 12:628907. [PMID: 34248836 PMCID: PMC8264660 DOI: 10.3389/fendo.2021.628907] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/13/2020] [Accepted: 05/19/2021] [Indexed: 01/01/2023] Open
Abstract
Obesity is an excess accumulation of body fat. Its progression rate has remained high in recent years. Therefore, the aim of this study was to diagnose important differentially expressed genes (DEGs) associated in its development, which may be used as novel biomarkers or potential therapeutic targets for obesity. The gene expression profile of E-MTAB-6728 was downloaded from the database. After screening DEGs in each ArrayExpress dataset, we further used the robust rank aggregation method to diagnose 876 significant DEGs including 438 up regulated and 438 down regulated genes. Functional enrichment analysis was performed. These DEGs were shown to be significantly enriched in different obesity related pathways and GO functions. Then protein-protein interaction network, target genes - miRNA regulatory network and target genes - TF regulatory network were constructed and analyzed. The module analysis was performed based on the whole PPI network. We finally filtered out STAT3, CORO1C, SERPINH1, MVP, ITGB5, PCM1, SIRT1, EEF1G, PTEN and RPS2 hub genes. Hub genes were validated by ICH analysis, receiver operating curve (ROC) analysis and RT-PCR. Finally a molecular docking study was performed to find small drug molecules. The robust DEGs linked with the development of obesity were screened through the expression profile, and integrated bioinformatics analysis was conducted. Our study provides reliable molecular biomarkers for screening and diagnosis, prognosis as well as novel therapeutic targets for obesity.
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Affiliation(s)
- Harish Joshi
- Department of Endocrinology, Endocrine and Diabetes Care Center, Hubbali, India
| | - Basavaraj Vastrad
- Department of Biochemistry, Basaveshwar College of Pharmacy, Gadag, India
| | - Nidhi Joshi
- Department of Medicine, Dr. D. Y. Patil Medical College, Kolhapur, India
| | - Chanabasayya Vastrad
- Biostatistics and Bioinformatics, Chanabasava Nilaya, Bharthinagar, Dharwad, India
- *Correspondence: Chanabasayya Vastrad,
| | - Anandkumar Tengli
- Department of Pharmaceutical Chemistry, JSS College of Pharmacy, Mysuru and JSS Academy of Higher Education & Research, Mysuru, India
| | - Iranna Kotturshetti
- Department of Ayurveda, Rajiv Gandhi Education Society`s Ayurvedic Medical College, Ron, India
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Zhou S, Zhu C, Pang Q, Liu HC. MicroRNA-217: A regulator of human cancer. Biomed Pharmacother 2020; 133:110943. [PMID: 33254014 DOI: 10.1016/j.biopha.2020.110943] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2020] [Revised: 10/17/2020] [Accepted: 10/25/2020] [Indexed: 12/13/2022] Open
Abstract
As highly conserved non-coding RNAs of approximately 18-24 nucleotides, microRNAs (miRNAs) regulate the expression of target genes. Multiple studies have demonstrated that miRNAs participate in the regulation of human cancer. MircoRNA-217 (miR-217) participates in the regulation of various tumors by specifically binding target genes and post-transcriptional regulation. In recent years, there have been numerous reports about miR-217 in tumor progression. MiR-217 is known mainly as a tumor suppressor, although some studies have shown that it functions as an oncomiR. Here, we review the current research related to miR-217, including its role in tumor progression and the molecular mechanisms.
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Affiliation(s)
- Shuai Zhou
- Department of Hepatobiliary Pancreatic Surgery, The First Affiliated Hospital of Bengbu Medical College, Anhui, 233000, China.
| | - Chao Zhu
- Department of Hepatobiliary Pancreatic Surgery, The First Affiliated Hospital of Bengbu Medical College, Anhui, 233000, China.
| | - Qing Pang
- Department of Hepatobiliary Pancreatic Surgery, The First Affiliated Hospital of Bengbu Medical College, Anhui, 233000, China.
| | - Hui Chun Liu
- Department of Hepatobiliary Pancreatic Surgery, The First Affiliated Hospital of Bengbu Medical College, Anhui, 233000, China.
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MicroRNAs as regulators of ERK/MAPK pathway: A comprehensive review. Biomed Pharmacother 2020; 132:110853. [PMID: 33068932 DOI: 10.1016/j.biopha.2020.110853] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Revised: 09/19/2020] [Accepted: 10/04/2020] [Indexed: 02/07/2023] Open
Abstract
The ERK/MAPK cascade is one the four distinctive MAPK cascades which transmit extracellular signals to intracellular targets. This cascade has an important role in the regulation of several fundamental processes such as proliferation, differentiation and cell response to diverse extrinsic stresses. Moreover, several studies have shown participation of this cascade in the pathogenesis of cancer. Recent investigations have unraveled interaction between microRNAs (miRNAs) and ERK/MAPK cascade. These transcripts reside in both upstream and downstream of this cascade, regulating or being regulated by ERK/MAPK proteins. In the current review, we summarize the role of miRNAs in the regulation of ERK/MAPK and their contribution in the pathogenesis of human disorders with particular focus on cancers.
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Overexpression of miR-217-5p protects against oxygen-glucose deprivation/reperfusion-induced neuronal injury via inhibition of PTEN. Hum Cell 2020; 33:1026-1035. [PMID: 32683553 DOI: 10.1007/s13577-020-00396-w] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Accepted: 06/25/2020] [Indexed: 02/07/2023]
Abstract
Ischemic stroke is characterized by loss of brain function because of cerebral ischemia. Evidence has been shown that miR-217-5p is significantly downregulated in infarcted brain areas following focal cerebral ischemia. However, the role of miR-217-5p in ischemic stroke is still unclear. To mimic ischemia/reperfusion (I/R) injury conditions in vitro, SH-SY5Y cells were treated with oxygen-glucose deprivation/reperfusion (OGD/R). Our data found that PTEN was the directly target of miR-217-5p in SH-SY5Y cells. The level of miR-217-5p was significantly decreased, while the level of PTEN was notably increased in SH-SY5Y cells following OGD/R treatment. Overexpression of miR-217-5p markedly promoted the proliferation and cell cycle progression, and inhibited apoptosis in OGD/R-treated SH-SY5Y cells. In addition, overexpression of miR-217-5p significantly decreased the expressions of PTEN and FOXO1, but increased the expression of p-Akt in OGD/R-treated SH-SY5Y cells. Moreover, methylation specific PCR (MSP) results indicated the CpG islands in the promoter region of miR-217-5p were hypermethylated in SH-SY5Y cells under OGD/R. Meanwhile, the DNA methylation of miR-217-5p promoter region decreased expression of miR-217-5p. Our data indicated that miR-217-5p could attenuate ischemic injury by inhibiting PTEN. In addition, DNA methylation-mediated silencing of miR-217-5p may serve as a promising therapeutic target of ischemic stroke.
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Zhu M, Chen G, Yang Y, Yang J, Qin B, Gu L. miR‑217‑5p regulates myogenesis in skeletal muscle stem cells by targeting FGFR2. Mol Med Rep 2020; 22:850-858. [PMID: 32626929 PMCID: PMC7339560 DOI: 10.3892/mmr.2020.11133] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Accepted: 04/04/2020] [Indexed: 02/07/2023] Open
Abstract
MicroRNA-217-5p (miR-217-5p) has been implicated in cell proliferation; however, its role in skeletal muscle stem cells (SkMSCs) remains unknown. The present study aimed to explore the roles of miR‑217‑5p in the biological characteristics of SkMSCs. SkMSCs were identified by cell surface markers using flow cytometry. The present study observed that miR‑217‑5p mimics accelerated the proliferation and suppressed the differentiation in SkMSCs. In addition, the results of the present study revealed that fibroblast growth factor receptor 2 (FGFR2) was a target of miR‑217‑5p, as miR‑217‑5p bound directly to the 3'‑untranslated region of FGFR2 mRNA, resulting in increased FGFR2 mRNA and protein levels. In addition, the present study suppressed the expression of FGFR2 in SkMSCs using a selective FGFR inhibitor AZD4547 and detected the efficiency of inhibition by reverse transcription‑quantitative PCR and western blotting. miR‑217‑5p levels were positively associated with FGFR2 expression, which was upregulated and accelerated the proliferation of SkMSCs compared with that of the miR‑NC group. Collectively, these results demonstrated that miR‑217‑5p may act as a myogenesis promoter in SkMSCs by directly targeting FGFR2 and may regulate the myogenesis of these cells.
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Affiliation(s)
- Menghai Zhu
- Department of Orthopedic Trauma and Microsurgery, The First Affiliated Hospital, Sun Yat‑sen University, Guangzhou, Guangdong 510080, P.R. China
| | - Gang Chen
- Department of Orthopedic Trauma and Microsurgery, The First Affiliated Hospital, Sun Yat‑sen University, Guangzhou, Guangdong 510080, P.R. China
| | - Yi Yang
- Department of Orthopedic Trauma and Microsurgery, The First Affiliated Hospital, Sun Yat‑sen University, Guangzhou, Guangdong 510080, P.R. China
| | - Jiantao Yang
- Department of Orthopedic Trauma and Microsurgery, The First Affiliated Hospital, Sun Yat‑sen University, Guangzhou, Guangdong 510080, P.R. China
| | - Bengang Qin
- Department of Orthopedic Trauma and Microsurgery, The First Affiliated Hospital, Sun Yat‑sen University, Guangzhou, Guangdong 510080, P.R. China
| | - Liqiang Gu
- Department of Orthopedic Trauma and Microsurgery, The First Affiliated Hospital, Sun Yat‑sen University, Guangzhou, Guangdong 510080, P.R. China
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Gong X, Zhu Z. Long Noncoding RNA HOTAIR Contributes to Progression in Hepatocellular Carcinoma by Sponging miR-217-5p. Cancer Biother Radiopharm 2020; 35:387-396. [PMID: 32315535 DOI: 10.1089/cbr.2019.3070] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Background: Hepatocellular carcinoma (HCC) is an aggressive primary hepatic cancer with high malignancy and poor prognosis. Long noncoding RNA HOTAIR has been classified as an oncogene to accelerate cell proliferation, migration, and invasion in many cancer types by interacting with the miRNA. Therefore, we assumed that HOTAIR might participate in HCC cell progression by interacting with miR-217-5p expression. Materials and Methods: The expression of HOTAIR and miR-217-5p in 35 HCC patients and HCC cells was measured by quantitative real-time polymerase chain reaction. Cell transfection was conducted using Lipofectamine 2000 transfection reagent. CCK8 and flow cytometry was applied for the measurement of cell proliferation and apoptosis. Cell migration and invasion capacities were carried out by transwell assay. Xenograft mice were constructed by subcutaneously injecting of stably transfected Huh-7 cells in mice. The interaction between HOTAIR and miR-217-5p was determined by luciferase reporter system. Protein expression of P13K, p-P13K, AKT, p-AKT, MMP-2, and MMP-9 was analyzed using Western blot assay. Results: The expression of HOTAIR was upregulated, whereas miR-217-5p was downregulated in HCC tumor tissues and cell lines (Hep3B and Huh-7) compared with normal tissues and human normal liver cell line MIHA. In addition, HOTAIR expression was negatively correlated with miR-217-5p expression in HCC (r2 = 0.1867, p = 0.0171). More importantly, HOTAIR knockdown induced apoptosis and inhibited cell proliferation, migration, invasion, and epithelial-mesenchymal transition (EMT). In vivo experiments revealed that the interference of HOTAIR inhibited tumor growth. Subsequently, luciferase reporter system confirmed the interaction between HOTAIR and miR-217-5p. The rescue experiments clarified that miR-217-5p inhibitor attenuated the suppression of HOTAIR silencing on HCC cell proliferation, migration, invasion, and EMT. Furthermore, miR-217-5p inhibitor restored the inhibition of HOTAIR silencing mediated p-PI3K/p-AKT/MMP-2/9 protein expression. Conclusions: HOTAIR contributes to cell progression in HCC by sponging miR-217-5p, representing promising biomarkers for HCC treatment.
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Affiliation(s)
- Ximing Gong
- Department of General Surgery, New Area People's Hospital of Pudong, Shanghai, China
| | - Zhenya Zhu
- Department of General Surgery, New Area People's Hospital of Pudong, Shanghai, China
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Bai M, Lei Y, Wang M, Ma J, Yang P, Mou X, Dong Y, Han S. Long Non-coding RNA SNHG17 Promotes Cell Proliferation and Invasion in Castration-Resistant Prostate Cancer by Targeting the miR-144/CD51 Axis. Front Genet 2020; 11:274. [PMID: 32351538 PMCID: PMC7174785 DOI: 10.3389/fgene.2020.00274] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2019] [Accepted: 03/06/2020] [Indexed: 12/20/2022] Open
Abstract
Previously, we found that the expression of long non-coding RNA (lncRNA) small nucleolar RNA host gene 17 (SNHG17) was up-regulated in castration-resistant prostate cancer (CRPC) cells compared to that in hormone sensitive prostate cancer (HSPC) cells. Moreover, we found that CD51 was up-regulated in prostate cancer cells and promoted the carcinogenesis and progression of prostate cancer. However, the regulatory mechanism of SNHG17 and CD51 in the development of CRPC remains unclear. In the current study, we aimed to elucidate the expressions, functions, and underlying mechanism of SNHG17 and CD51 in CRPC. Our results further confirmed that both SNHG17 and CD51 were up-regulated in CRPC tissues and cells. In addition, we found that SNHG17 expression was positively correlated with CD51 expression in prostate cancer. Mechanically, SNHG17 functioned as a competing endogenous RNA (ceRNA) to up-regulate CD51 expression through competitively sponging microRNA-144 (miR-144), and CD51 was identified as a direct downstream target of miR-144 in CRPC. Functionally, down-regulation of SNHG17 or up-regulation of miR-144 inhibited the proliferation, migration, and invasion of CRPC cells, whereas up-regulation of SNHG17 and down-regulation of miR-144 promoted the proliferation, migration and invasion of CRPC cells in vitro and in vivo. Using gain and loss-of function assay and rescue assay, we showed that miR-144 inhibited cell proliferation, migration and invasion by directly inhibiting CD51 expression, and SNHG17 promoted cell proliferation, migration and invasion by directly enhancing CD51 expression in CRPC cells. Taken together, our study reveals the role of the SNHG17/miR-144/CD51 axis in accelerating CRPC cell proliferation and invasion, and suggests that SNHG17 may serve as a novel therapeutic target for CRPC.
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Affiliation(s)
- Minghua Bai
- Department of Radiation Oncology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China.,Department of Radiation Oncology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Yutiantian Lei
- Department of Radiation Oncology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Mincong Wang
- Department of Radiation Oncology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Jinlu Ma
- Department of Radiation Oncology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Pengtao Yang
- Department of Radiation Oncology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Xingyi Mou
- Department of Clinical Medicine, Xi'an Jiaotong University Health Science Center, Xi'an, China
| | - Yiping Dong
- Department of Radiation Oncology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Suxia Han
- Department of Radiation Oncology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
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Zhang X, Wang Z, Li W, Huang R, Zheng D, Bi G. MicroRNA-217-5p ameliorates endothelial cell apoptosis induced by ox-LDL by targeting CLIC4. Nutr Metab Cardiovasc Dis 2020; 30:523-533. [PMID: 31744714 DOI: 10.1016/j.numecd.2019.09.027] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/25/2019] [Revised: 09/24/2019] [Accepted: 09/24/2019] [Indexed: 01/29/2023]
Abstract
BACKGROUND AND AIMS Endothelial cell apoptosis plays an essential role in the pathogenesis of atherosclerosis. MicroRNAs and chloride intracellular channels (CLICs) have been verified to participate in the endothelial cell apoptosis process, however, the underlying molecular mechanisms are still unclear. The main aim of this study was to investigate the biological effects of microRNA-217-5p (miR-217-5p) and CLIC4 on endothelial cell apoptosis in atherosclerosis. METHODS AND RESULTS An atherosclerotic mouse model (n = 18) was constructed by feeding apolipo protein E knockout ApoE(-/-) mice with high-fat diet for 12 weeks. An atherosclerotic cell model was established by treating human aortic endothelial cells with oxidized low-density lipoprotein (ox-LDL; 50 μg/mL) for 24 h. Quantitative real-time polymerase chain reaction and immunofluorescent staining confirmed the downregulation of miR-217-5p and upregulation of CLIC4 in atherosclerotic endothelial cells. Combined with western blot, flow cytometry assay and Hoechst staining, we demonstrated that miR-217-5p upregulation or CLIC4 knockdown regulated the apoptosis-related genes, ameliorated mitochondrial membrane permeability and therefore inhibited the apoptosis of aortic endothelial cells induced by ox-LDL. We further confirmed that miR-217-5p inhibited apoptosis of endothelial cells through targeting CLIC4 using luciferase report assay and rescue experiments. CONCLUSION We revealed for the first time that miR-217-5p inhibited apoptosis of endothelial cells in atherosclerosis and identified CLIC4 as a novel target of miR-217-5p. Our work provides a potential therapeutic approach for the treatment of atherosclerosis.
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Affiliation(s)
- Xiaotian Zhang
- Department of Neurology, Shengjing Hospital of China Medical University, 36 Sanhao Street, Shenyang 110004, People's Republic of China
| | - Zhimin Wang
- Department of Neurology, Shengjing Hospital of China Medical University, 36 Sanhao Street, Shenyang 110004, People's Republic of China
| | - Weishuai Li
- Department of Neurology, Shengjing Hospital of China Medical University, 36 Sanhao Street, Shenyang 110004, People's Republic of China
| | - Rui Huang
- Department of Neurology, Shengjing Hospital of China Medical University, 36 Sanhao Street, Shenyang 110004, People's Republic of China
| | - Dongming Zheng
- Department of Neurology, Shengjing Hospital of China Medical University, 36 Sanhao Street, Shenyang 110004, People's Republic of China
| | - Guorong Bi
- Department of Neurology, Shengjing Hospital of China Medical University, 36 Sanhao Street, Shenyang 110004, People's Republic of China.
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Li R, Song Y, Ji Z, Li L, Zhou L. Pharmacological biotargets and the molecular mechanisms of oxyresveratrol treating colorectal cancer: Network and experimental analyses. Biofactors 2020; 46:158-167. [PMID: 31647596 DOI: 10.1002/biof.1583] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/23/2019] [Accepted: 10/07/2019] [Indexed: 12/13/2022]
Abstract
This article was designed by using a network pharmacological approach to reveal the therapeutic targets and molecular mechanisms of oxyresveratrol (Oxyres) treating colorectal cancer (CRC). Furthermore, several bioinformatic findings would be validated. Pathogenetic targets of CRC and pharmacological targets of Oxyres were identified by web-available databases. All identifiable biotargets were collected for functional enrichment analyses to reveal the biological processes and signaling pathways of Oxyres treating CRC. In addition, human CRC, non-CRC samples, and cell line study were used to validate the predictive biotargets of Oxyres treating CRC. In network pharmacological analyses, top therapeutic targets of mitogen-activated protein kinase 1 (MAPK1), insulin growth factor 1 (IGF1), hematopoietic prostaglandin D synthase (HPGDS), GTPase HRas (HRAS), and cytochrome P450 2C9 (CYP2C9) in Oxyres treating CRC were identified, respectively. As shown in functional analysis, biological processes of Oxyres treating CRC were mainly involved in modulating cell communication, signal transduction, apoptosis, cell motility, cell proliferation, and lipid metabolism. Furthermore, top 10 signaling pathways of Oxyres treating CRC were identified, respectively. In human study, CRC samples resulted in increased neoplastic expressions of Ki-67, MAPK1, IGF1, characterized with clinical imaging inspection, pathological diagnosis, and altered blood lipids in these CRC cases. In cell culture study, Oxyres-dosed CRC cells exhibited reduced cell proliferation, promoted cellular apoptosis. Furthermore, significantly decreased proteins of intracellular Ki-67, MAPK1, and IGF1 were observed in Oxyres-dosed cells when compared to those in controls. Collectively, anti-CRC pharmacological activity of Oxyres may be mainly associated with induction of apoptosis and suppression of cell proliferation as revealed in bioinformatic findings. In addition, all core biotargets and molecular mechanisms of Oxyres treating CRC are unveiled respectively. Interestingly, the identifiable MAPK1, IGF1 biotargets may be potential molecules for treating and screening CRC.
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Affiliation(s)
- Rong Li
- Department of Pharmacology, West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu, China
| | - Yingqi Song
- Department of Pharmacology, West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu, China
| | - Zhenni Ji
- Department of Pharmacology, West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu, China
| | - Li Li
- Department of Gastrointestinal Surgery, West China Hospital, Sichuan University, Chengdu, China
| | - Liming Zhou
- Department of Pharmacology, West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu, China
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Pang L, Cheng Y, Zou S, Song J. Long noncoding RNA SNHG7 contributes to cell proliferation, migration, invasion and epithelial to mesenchymal transition in non-small cell lung cancer by regulating miR-449a/TGIF2 axis. Thorac Cancer 2019; 11:264-276. [PMID: 31793741 PMCID: PMC6996990 DOI: 10.1111/1759-7714.13245] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2019] [Revised: 10/22/2019] [Accepted: 10/25/2019] [Indexed: 12/22/2022] Open
Abstract
Background Non‐small cell lung cancer (NSCLC) is an intractable malignant lung cancer with high rates of metastasis and mortality. Currently, long noncoding RNA nuclear RNA host gene 7 (SNHG7) is recognized as a biomarker of multiple cancers. However, the role of SNHG7 in NSCLC requires further understanding. Methods The expression of SNHG7, miR‐449a and TGIF2 in NSCLC tumors and cells was examined by quantitative real time polymerase chain reaction (qRT‐PCR). Cell viability was measured by MTT assay. Cell migration and invasion was conducted using transwell assay. Protein expression of TGIF2, vimentin, N‐cadherin and E‐cadherin was detected by western blot. The interaction between miR‐449a and SNHG7 or TGIF2 was determined by luciferase reporter system, RIP and RNA pull‐down assay, respectively. Xenograft mice models were established by subcutaneously injecting A549 cells transfected with sh‐SNHG7 and sh‐control. Results SNHG7 expression was upregulated in NSCLC tumors and cells compared with normal tissues and cells. SNHG7 silencing repressed cell proliferation, migration, invasion and epithelial to mesenchymal transition (EMT) in NSCLC. Consistently, SNHG7 knockdown hindered tumor growth in vivo. The subsequent luciferase reporter system, RIP and RNA pull‐down assay validated the interaction between miR‐449a and SNHG7 or TGIF2. The rescue experiments displayed that miR‐449a inhibitor counteracted SNHG7 silencing induced inhibition on proliferation, migration, invasion and EMT. Similarly, restoration of TGIF2 reversed miR‐449a mediated inhibition on cell progression. In addition, the results indicated that SNHG7 could regulate cell progression by targeting miR‐449a/TGIF2 axis. Conclusion SNHG7 contributed to cell proliferation, migration, invasion and EMT in NSCLC by upregulating TGIF2 via sponging miR‐449a, representing a novel targeted therapy method for NSCLC.
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Affiliation(s)
- Lingling Pang
- Department of Respiratory Medicine, Yantai Yuhuangding Hospital, Yantai, China
| | - Yun Cheng
- Department of Respiratory Medicine, Yantai Muping District Traditional Chinese Medical Hospital, Yantai, China
| | - Shenchun Zou
- Department of Respiratory Medicine, Yantai Yuhuangding Hospital, Yantai, China
| | - Jie Song
- Department of Respiratory Medicine, Yantai Yuhuangding Hospital, Yantai, China
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Xiao Y, Najeeb RM, Ma D, Yang K, Zhong Q, Liu Q. Upregulation of CENPM promotes hepatocarcinogenesis through mutiple mechanisms. JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2019; 38:458. [PMID: 31703591 PMCID: PMC6839178 DOI: 10.1186/s13046-019-1444-0] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/18/2019] [Accepted: 10/10/2019] [Indexed: 01/10/2023]
Abstract
Background Hepatocellular carcinoma (HCC) still remains a dominating medical challenge in early diagnosis and clinical therapy. Centromere protein M (CENPM) has been proved to be over-expressed in HCC tissues, but carcinogenic mechanism of CENPM contributing to liver cancer is poorly understood. Methods In this study, we first explored mRNA and protein levels of CENPM in HCC samples, matching adjacent non-tumor tissues and six hepatoma cell lines by polymerase chain reaction (PCR), western blotting and immunohistochemistry (IHC). Clinical data of HCC patients downloaded from The Cancer Genome Atlas (TCGA) were also analyzed. The character of CENPM concerned with HCC progression through several functional experimentations in vitro and in vivo was researched. Bioinformatics was carried out to further discover biological functions of CENPM. Results CENPM was positively up-regulated in HCC and connected with a poor prognosis. Silencing CENPM repressed cell proliferation in vivo and in vitro, and knock-down CENPM inhibited cell migration and invasion. Additionally, depletion of CENPM can promote cell apoptosis and arrested cell cycle. Furthermore, single-gene gene set enrichment analysis (GSEA) analysis indicated that CENPM was linked to the P53 signaling pathway and cell cycle pathway, and our research supported this prediction. Finally, we also found that miR-1270 was a negative regulator and participated in post-transcriptional regulation of CENPM, and hepatitis B virus X protein (HBx) can promote hepatocellular carcinoma by suppressing miR1270. Conclusion CENPM was closely associated with HCC progression and it could be considered as a new possible biomarker along with a therapeutic target for HCC.
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Affiliation(s)
- Yusha Xiao
- Department of General Surgery, Zhongnan Hospital of Wuhan University, Wuhan, 430071, Hubei, People's Republic of China
| | - Rahmathullah Mohamed Najeeb
- Department of General Surgery, Zhongnan Hospital of Wuhan University, Wuhan, 430071, Hubei, People's Republic of China
| | - Dong Ma
- Department of General Surgery, Zhongnan Hospital of Wuhan University, Wuhan, 430071, Hubei, People's Republic of China
| | - Kang Yang
- Department of Urology, Renmin Hospital of Wuhan University, Hubei, China
| | - Qiu Zhong
- Department of General Surgery, Zhongnan Hospital of Wuhan University, Wuhan, 430071, Hubei, People's Republic of China
| | - Quanyan Liu
- Department of General Surgery, Zhongnan Hospital of Wuhan University, Wuhan, 430071, Hubei, People's Republic of China.
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Wu HY, Wei Y, Pan SL. Down-regulation and clinical significance of miR-7-2-3p in papillary thyroid carcinoma with multiple detecting methods. IET Syst Biol 2019; 13:225-233. [PMID: 31538956 PMCID: PMC8687168 DOI: 10.1049/iet-syb.2019.0025] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2019] [Revised: 05/30/2019] [Accepted: 06/10/2019] [Indexed: 04/05/2024] Open
Abstract
Altered miRNA expression participates in the biological progress of thyroid carcinoma and functions as a diagnostic marker or therapeutic agent. However, the role of miR-7-2-3p is currently unclear. The authors' study was the first investigation of miR-7-2-3p expression level and diagnostic ability in several public databases. Potential target genes were obtained from DIANA Tools, and function enrichment analysis was then performed. Furthermore, the authors examined expression levels of potential targets in the Human Protein Atlas (HPA) and the Cancer Genome Atlas (TCGA). Finally, the potential transcription factors (TFs) were predicted by JASPAR. TCGA, GSE62054, GSE73182, GSE40807, and GSE55780 revealed that miR-7-2-3p expression in papillary thyroid carcinoma (PTC) tissues was notably lower compared with non-tumour tissues, while its expression in E-MATB-736 showed no remarkable difference. Function enrichment analysis showed that 698 genes were enriched in pathways, including pathways in cancer, and glioma. CCND1, GSK3B, and ITGAV of pathways in cancer were inverse correlations with miR-7-2-3p in both post-transcription and protein levels. According to the TF prediction, the prospective upstream TFs of miR-7-2-3p were ISX, SPI1, PRRX1, and BARX1. MiR-7-2-3p was significantly down-regulated and may act on PTC progression by crucial pathways. However, the mechanisms of miR-7-2-3p need further investigation.
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Affiliation(s)
- Hua-Yu Wu
- Department of Cell Biology and Genetics, School of Pre-clinical Medicine, Guangxi Medical University, Nanning, 530021, Guangxi Zhuang Autonomous Region, People's Republic of China
| | - Yi Wei
- Department of Pathophysiology, School of Pre-clinical Medicine, Guangxi Medical University, Nanning, 530021, Guangxi Zhuang Autonomous Region, People's Republic of China
| | - Shang-Ling Pan
- Department of Pathophysiology, School of Pre-clinical Medicine, Guangxi Medical University, Nanning, 530021, Guangxi Zhuang Autonomous Region, People's Republic of China.
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Liu C, Zhang Z, Qi D. Circular RNA hsa_circ_0023404 promotes proliferation, migration and invasion in non-small cell lung cancer by regulating miR-217/ZEB1 axis. Onco Targets Ther 2019; 12:6181-6189. [PMID: 31496723 PMCID: PMC6689096 DOI: 10.2147/ott.s201834] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2019] [Accepted: 03/27/2019] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND Circular RNAs (circRNAs) have been considered as key regulators of cancer biology. However, the functional role of hsa_circ_0023404 in non-small cell lung cancer (NSCLC) and its regulatory mechanism are still almost unknown. METHODS The expression of hsa_circ_0023404, miR-217 and zinc finger E-box-binding homeobox 1 (ZEB1) was evaluated by quantitative real-time polymerase chain reaction. The role of hsa_circ_0023404 in NSCLC progression was determined using cell count kit-8 assay, transwell migration and invasion assay. Luciferase reporter assay was performed to assess the interaction of hsa_circ_0023404, miR-217 and ZEB1 in NSCLC cells. RESULTS The expression of hsa_circ_0023404 was upregulated in NSCLC tissues, as well as in NSCLC cell lines. High hsa_circ_0023404 expression predicted short overall survival in NSCLC. Functionally, knockdown of hsa_circ_0023404 inhibited the proliferation, migration and invasion of NSCLC cells. In the further molecular mechanism study, hsa_circ_0023404 was shown to interact with miR-217/ZEB1 axis to contribute to the growth of NSCLC cells. CONCLUSION hsa_circ_0023404 promotes the proliferation, migration and invasion of NSCLC cells by regulating miR-217/ZEB1 axis, providing a fresh perspective on circRNAs in NSCLC development.
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Affiliation(s)
- Chengjun Liu
- Thoracic Surgery, University-Town Hospital of Chongqing Medical University, Chongqing401331, People’s Republic of China
| | - Zuwang Zhang
- Thoracic Surgery, University-Town Hospital of Chongqing Medical University, Chongqing401331, People’s Republic of China
| | - Dongdong Qi
- Thoracic Surgery, University-Town Hospital of Chongqing Medical University, Chongqing401331, People’s Republic of China
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Wang H, Chen H, Jiang Z, Lin Y, Wang X, Xiang J, Peng J. Integrin subunit alpha V promotes growth, migration, and invasion of gastric cancer cells. Pathol Res Pract 2019; 215:152531. [PMID: 31320250 DOI: 10.1016/j.prp.2019.152531] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/18/2019] [Revised: 06/12/2019] [Accepted: 07/05/2019] [Indexed: 12/15/2022]
Abstract
Integrin subunit alpha V (ITGAV), a member of integrin family of extracellular matrix receptors, is involved in many types of cancer. In this study, the expression levels, clinical features and prognosis of ITGAV in gastric cancer (GC) patients were investigated, and the functional roles of ITGAV were also investigated. Cell Counting Kit-8 (CCK-8) assay was performed to examine the proliferation of GC cells. Transwell assays and wound-healing assays were conducted to explore the effect of ITGAV expression on GC cell migration and invasion. We found that ITGAV was overexpressed in both GC tissues and GC cells. ITGAV expression was positively correlated with lymph node metastasis and TNM stage of GC. High expression of ITGAV was associated with shorter overall survival (OS) and disease-free survival (DFS). Interestingly, the downregulation of ITGAV resulted in suppression of proliferation, migration, and invasion in GC cells. In conclusion, ITGAV is overexpressed in gastric cancer and is associated with poorer prognostic outcomes. ITGAV may serve as an important prognostic marker for GC staging and progression.
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Affiliation(s)
- Huashe Wang
- Department of Gastrointestinal Surgery, Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, 510655, PR China
| | - Honglei Chen
- Department of Gastrointestinal Surgery, Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, 510655, PR China; Department of Gastrointestinal Endoscopy, Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, 510655, PR China
| | - Zhipeng Jiang
- Department of Gastrointestinal Surgery, Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, 510655, PR China
| | - Yijia Lin
- Department of Gastrointestinal Surgery, Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, 510655, PR China
| | - Xinyou Wang
- Department of Gastrointestinal Surgery, Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, 510655, PR China
| | - Jun Xiang
- Department of Gastrointestinal Surgery, Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, 510655, PR China
| | - Junsheng Peng
- Department of Gastrointestinal Surgery, Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, 510655, PR China.
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Pei Y, Zhang Y, Zheng K, Shang G, Wang Y, Wang W, Qiu E, Li S, Liu F, Zhang X. Ilex hainanensis Merr targets ITGAV to suppress the proliferation and metastasis of osteosarcoma cells. Onco Targets Ther 2019; 12:4499-4507. [PMID: 31239718 PMCID: PMC6560189 DOI: 10.2147/ott.s205688] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2019] [Accepted: 04/27/2019] [Indexed: 01/07/2023] Open
Abstract
Background: Osteosarcoma (OS) is the most common primary malignant bone tumor. Hence, there is an urgent need to identify effective and safe therapeutic agents against OS. It has been reported that Ilex hainanensis Merr (IME) possesses antitumor properties. Integrin subunit alpha V (ITGAV) is important for the diagnosis, treatment, and prognosis of tumors. Purpose: The objective of this study was to whether IME can play a role in the treatment of osteosarcoma by regulating ITGAV. Methods: Western blot and real-time PCR were used to detect the expression of ITGAV in non-tumorous tissues, osteosarcoma tissues, and metastatic tumors. The expression of ITGAV in MG63, U2OS, and hFOB1. A total of 19 cells was determined through Western blotting and real-time PCR. The expression of ITGAV in OS cells treated with different concentrations of DDP was determined through Western blotting. Agter transfecting with control or si-ITGAV, and subsequently treated with control or 5 μmol/L DDP, MTT assay and transwell assay were used to detect the proliferaion and migration of cells. Western blot was used to detect the expression of ITGAV in cells treated with different concentrations of IME and MTT assay and transwell assay were used to detect the proliferaion and migration of cells. MG63 and U2OS cells were treated with control, 5 μmol/L DDP, 25 μmol/L IME, or 5 μmol/L DDP combined with 25 μmol/L IME, the expression of ITGAV was determined through Western blotting and real-time PCR. MTT assay and transwell assay were used to detect the proliferation and migration of cells. Inhibitory effect of IME on lung metastasis of osteosarcoma in vivo. Results: ITGAV was highly expressed in tumors, with the highest expression found in metastatic tumors and higher in OS cells. A low concentration of DDP (5 μmol/L) inhibited the expression of ITGAV. However, ITGAV may be related to the development of resistance to DDP. Silencing of ITGAV downregulates the proliferation and migration of OS cells as the effect of low-concentration DDP (5 μmol/L). IME inhibited the proliferation and migration of MG63 and U2OS cells in a concentration-dependent manner and decreased the expression of ITGAV. MTT and Transwell assays showed that 25 μmol/L IME and 5 μmol/L DDP exhibited similar inhibitory effects on the proliferation and migration of OS cells. The combination of IME with DDP resulted in the amplification of these inhibitory effects. Both DDP and IME downregulated the expression of ITGAV, and the inhibition of ITGAV was amplified by the combination of IME with DDP. In-vivo studies have shown that IME and DDP, independently or in combination, may significantly inhibit the metastasis of OS to the lungs. Conclusion: IME may reduce the resistance of OS cells to DDP to some extent.
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Affiliation(s)
- Yi Pei
- Department of Bone and Soft Tissue Surgery, Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Institute, Shenyang, 110042, People's Republic of China
| | - YueYan Zhang
- Clinical Pathology, Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Institute, Shenyang, 110042, People's Republic of China
| | - Ke Zheng
- Department of Bone and Soft Tissue Surgery, Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Institute, Shenyang, 110042, People's Republic of China
| | - GuanNing Shang
- Department of Bone and Soft Tissue Surgery, Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Institute, Shenyang, 110042, People's Republic of China
| | - YuMing Wang
- Department of Bone and Soft Tissue Surgery, Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Institute, Shenyang, 110042, People's Republic of China
| | - Wei Wang
- Department of Bone and Soft Tissue Surgery, Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Institute, Shenyang, 110042, People's Republic of China
| | - EnDuo Qiu
- Department of Bone and Soft Tissue Surgery, Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Institute, Shenyang, 110042, People's Republic of China
| | - ShengLong Li
- Department of Bone and Soft Tissue Surgery, Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Institute, Shenyang, 110042, People's Republic of China
| | - Fei Liu
- Department of Bone and Soft Tissue Surgery, Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Institute, Shenyang, 110042, People's Republic of China
| | - XiaoJing Zhang
- Department of Bone and Soft Tissue Surgery, Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Institute, Shenyang, 110042, People's Republic of China
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Salinas-Vera YM, Gallardo-Rincón D, García-Vázquez R, Hernández-de la Cruz ON, Marchat LA, González-Barrios JA, Ruíz-García E, Vázquez-Calzada C, Contreras-Sanzón E, Resendiz-Hernández M, Astudillo-de la Vega H, Cruz-Colin JL, Campos-Parra AD, López-Camarillo C. HypoxamiRs Profiling Identify miR-765 as a Regulator of the Early Stages of Vasculogenic Mimicry in SKOV3 Ovarian Cancer Cells. Front Oncol 2019; 9:381. [PMID: 31157166 PMCID: PMC6528691 DOI: 10.3389/fonc.2019.00381] [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: 01/09/2019] [Accepted: 04/23/2019] [Indexed: 12/12/2022] Open
Abstract
Vasculogenic mimicry (VM) is a novel cancer hallmark in which malignant cells develop matrix-associated 3D tubular networks with a lumen under hypoxia to supply nutrients needed for tumor growth. Recent studies showed that microRNAs (miRNAs) may have a role in VM regulation. In this study, we examined the relevance of hypoxia-regulated miRNAs (hypoxamiRs) in the early stages of VM formation. Data showed that after 48 h hypoxia and 12 h incubation on matrigel SKOV3 ovarian cancer cells undergo the formation of matrix-associated intercellular connections referred hereafter as 3D channels-like structures, which arose previous to the apparition of canonical tubular structures representative of VM. Comprehensive profiling of 754 mature miRNAs at the onset of hypoxia-induced 3D channels-like structures showed that 11 hypoxamiRs were modulated (FC>1.5; p < 0.05) in SKOV3 cells (9 downregulated and 2 upregulated). Bioinformatic analysis of the set of regulated miRNAs showed that they might impact cellular pathways related with tumorigenesis. Moreover, overall survival analysis in a cohort of ovarian cancer patients (n = 485) indicated that low miR-765, miR-193b, miR-148a and high miR-138 levels were associated with worst patients outcome. In particular, miR-765 was severely downregulated after hypoxia (FC < 32.02; p < 0.05), and predicted to target a number of protein-encoding genes involved in angiogenesis and VM. Functional assays showed that ectopic restoration of miR-765 in SKOV3 cells resulted in a significant inhibition of hypoxia-induced 3D channels-like formation that was associated with a reduced number of branch points and patterned tubular-like structures. Mechanistic studies confirmed that miR-765 decreased the levels of VEGFA, AKT1 and SRC-α transducers and exerted a negative regulation of VEGFA by specific binding to its 3'UTR. Finally, overall survival analysis of a cohort of ovarian cancer patients (n = 1435) indicates that high levels of VEGFA, AKT1 and SRC-α and low miR-765 expression were associated with worst patients outcome. In conclusion, here we reported a novel hypoxamiRs signature which constitutes a molecular guide for further clinical and functional studies on the early stages of VM. Our data also suggested that miR-765 coordinates the formation of 3D channels-like structures through modulation of VEGFA/AKT1/SRC-α axis in SKOV3 ovarian cancer cells.
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Affiliation(s)
- Yarely M. Salinas-Vera
- Posgrado en Ciencias Genómicas, Universidad Autónoma de la Ciudad de Mexico, Mexico City, Mexico
| | - Dolores Gallardo-Rincón
- Laboratorio de Medicina Translacional y Departamento de Tumores Gastro-Intestinales, Instituto Nacional de Cancerología, Mexico City, Mexico
| | - Raúl García-Vázquez
- Programa en Biomedicina Molecular y Red de Biotecnología, Instituto Politécnico Nacional, Mexico City, Mexico
| | | | - Laurence A. Marchat
- Programa en Biomedicina Molecular y Red de Biotecnología, Instituto Politécnico Nacional, Mexico City, Mexico
| | | | - Erika Ruíz-García
- Laboratorio de Medicina Translacional y Departamento de Tumores Gastro-Intestinales, Instituto Nacional de Cancerología, Mexico City, Mexico
| | | | | | | | - Horacio Astudillo-de la Vega
- Laboratorio de Investigación Translacional en Cáncer y Terapia Celular, Hospital de Oncología, Centro Médico Nacional Siglo XXI, Mexico City, Mexico
| | - José L. Cruz-Colin
- Subdirección de Investigación Básica, Instituto Nacional de Medicina Genómica, Mexico City, Mexico
| | - Alma D. Campos-Parra
- Laboratorio de Genómica, Instituto Nacional de Cancerología, Mexico City, Mexico
| | - César López-Camarillo
- Posgrado en Ciencias Genómicas, Universidad Autónoma de la Ciudad de Mexico, Mexico City, Mexico
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Kleemann M, Schneider H, Unger K, Bereuther J, Fischer S, Sander P, Marion Schneider E, Fischer-Posovszky P, Riedel CU, Handrick R, Otte K. Induction of apoptosis in ovarian cancer cells by miR-493-3p directly targeting AKT2, STK38L, HMGA2, ETS1 and E2F5. Cell Mol Life Sci 2019; 76:539-559. [PMID: 30392041 PMCID: PMC11105321 DOI: 10.1007/s00018-018-2958-x] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2018] [Revised: 10/15/2018] [Accepted: 10/29/2018] [Indexed: 02/07/2023]
Abstract
Apoptosis is a form of directed programmed cell death with a tightly regulated signalling cascade for the destruction of single cells. MicroRNAs (miRNAs) play an important role as fine tuners in the regulation of apoptotic processes. MiR-493-3p mimic transfection leads to the induction of apoptosis causing the breakdown of mitochondrial membrane potential and the activation of Caspases resulting in the fragmentation of DNA in several ovarian carcinoma cell lines. Ovarian cancer shows with its pronounced heterogeneity a very high death-to-incidence ratio. A target gene analysis for miR-493-3p was performed for the investigation of underlying molecular mechanisms involved in apoptosis signalling pathways. Elevated miR-493-3p levels downregulated the mRNA and protein expression levels of Serine/Threonine Kinase 38 Like (STK38L), High Mobility Group AT-Hook 2 (HMGA2) and AKT Serine/Threonine Kinase 2 (AKT2) by direct binding as demonstrated by luciferase reporter assays. Notably, the protein expression of RAF1 Proto-Oncogene, Serine/Threonine Kinase (RAF1) was almost completely downregulated by miR-493-3p. This interaction, however, was indirect and regulated by STK38L phosphorylation. In addition, RAF1 transcription was diminished as a result of reduced transcription of ETS proto-oncogene 1 (ETS1), another direct target of miR-493-3p. Taken together, our observations have uncovered the apoptosis inducing potential of miR-493-3p through its regulation of multiple target genes participating in the extrinsic and intrinsic apoptosis pathway.
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Affiliation(s)
- Michael Kleemann
- Institute of Applied Biotechnology, University of Applied Sciences Biberach, Hubertus-Liebrecht-Str. 35, 88400, Biberach, Germany.
- Faculty of Medicine, University of Ulm, Albert-Einstein-Allee 11, 89079, Ulm, Germany.
| | - Helga Schneider
- Institute of Applied Biotechnology, University of Applied Sciences Biberach, Hubertus-Liebrecht-Str. 35, 88400, Biberach, Germany
| | - Kristian Unger
- Research Unit Radiation Cytogenetics, Helmholtz Zentrum München Helmholtz Center Munich, German Research Center for Environmental Health, Ingolstädter Landstr. 1, 85764, Neuherberg, Germany
| | | | - Simon Fischer
- Boehringer Ingelheim Pharma GmbH & Co. KG, Bioprocess and Analytical Development, Birkendorfer Straße 65, 88400, Biberach, Germany
| | - Philip Sander
- Division of Experimental Anesthesiology, University Medical Center Ulm, Albert-Einstein-Allee 23, 89081, Ulm, Germany
| | - E Marion Schneider
- Division of Experimental Anesthesiology, University Medical Center Ulm, Albert-Einstein-Allee 23, 89081, Ulm, Germany
| | - Pamela Fischer-Posovszky
- Division of Pediatric Endocrinology and Diabetes, Department of Pediatrics and Adolescent Medicine, University Medical Center Ulm, Eythstr. 24, 89075, Ulm, Germany
| | - Christian U Riedel
- Faculty of Medicine, University of Ulm, Albert-Einstein-Alee 11, 89081, Ulm, Germany
| | - René Handrick
- Institute of Applied Biotechnology, University of Applied Sciences Biberach, Hubertus-Liebrecht-Str. 35, 88400, Biberach, Germany
| | - Kerstin Otte
- Institute of Applied Biotechnology, University of Applied Sciences Biberach, Hubertus-Liebrecht-Str. 35, 88400, Biberach, Germany
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Jiang W, Wang Q, Yu X, Lu T, Zhang P. MicroRNA-217 relieved neuropathic pain through targeting toll-like receptor 5 expression. J Cell Biochem 2018; 120:3009-3017. [PMID: 30548304 DOI: 10.1002/jcb.27269] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2018] [Accepted: 06/26/2018] [Indexed: 12/16/2022]
Abstract
Neuropathic pain is the most common chronic pain that is caused by nerve injury or disease that influences the nervous system. Increasing evidence suggested that microRNAs (miRNAs) play a crucial role in neuropathic pain and neuroinflammation development. However, the functional role of miR-217 in the development of neuropathic pain remains unknown. In this study, we used rats to establish a neuropathic pain model and showed that the miR-217 expression level was upregulated in the spinal dorsal horn of bilateral sciatic nerve chronic constriction injury (bCCI). However, the expression of miR-217 was not changed in the anterior cingulated cortex (ACC), hippocampus, and dorsal root ganglion (DRG) of bCCI rats. Ectopic expression of miR-217 attenuated neuropathic pain and suppressed neuroinflammation expression in vivo. We identified toll-like receptor 5 (TLR5) as a direct target gene of miR-217 in the PC12 cell. In addition, we demonstrated that the expression level of TLR5 was upregulated in bCCI rats. Moreover, restoration of TLR5 rescued the inhibitory roles induced by miR-217 overexpression on neuropathic pain and neuroinflammation development. These data suggested that miR-217 played a pivotal role in the development of neuropathic pain partly through regulating TLR5 expression.
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Affiliation(s)
- Wanwei Jiang
- Department of Anesthesiology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Qinghui Wang
- Department of Anesthesiology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Xuemei Yu
- Department of Anesthesiology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Tong Lu
- The Second Department of Anesthesiology, Affiliated Zhongshan Hospital of Dalian University, Dalian, China
| | - Pengbo Zhang
- Department of Anesthesiology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
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Liu P, Chen B, Gu Y, Liu Q. PNMA1, regulated by miR-33a-5p, promotes proliferation and EMT in hepatocellular carcinoma by activating the Wnt/β-catenin pathway. Biomed Pharmacother 2018; 108:492-499. [PMID: 30243081 DOI: 10.1016/j.biopha.2018.09.059] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2018] [Revised: 09/07/2018] [Accepted: 09/11/2018] [Indexed: 12/11/2022] Open
Abstract
Hepatocellular carcinoma (HCC) is one of the most common malignant tumors throughout the world. However, its mortality rate remains very high due to the absence of early diagnostic modalities and effective treatments, and its specific pathogenesis remains unclear. Here, we investigated the role of PNMA1 in the tumorigenesis of HCC. We found that PNMA1 was significantly upregulated in HCC. Clinically, higher expression of PNMA1 was associated with aggressive phenotypes and poor prognosis. Functionally, silencing of PNMA1 repressed proliferation in vitro and in vivo, and knockdown of PNMA1 suppressed tumor cell migration and invasion. Via GSEA analysis, we predicted that PNAM1 may be related to the epithelial-mesenchymal-transition and the Wnt signaling pathway. Both these assumptions were confirmed in our study. Furthermore, we proved that miR-33a-5p participated in the posttranscriptional regulation of PNMA1. Together, our findings suggested that PNMA1 participated in HCC progression and may be a potential biomarker and therapeutic target for HCC.
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Affiliation(s)
- Pengpeng Liu
- Department of Hepatobiliary and Pancreas, Research Center of Digestive Diseases, Zhongnan Hospital, Wuhan University, Wuhan, Hubei, China
| | - Baiyan Chen
- Department of Hepatobiliary and Pancreas, Research Center of Digestive Diseases, Zhongnan Hospital, Wuhan University, Wuhan, Hubei, China
| | - Yang Gu
- Department of Hepatobiliary and Pancreas, Research Center of Digestive Diseases, Zhongnan Hospital, Wuhan University, Wuhan, Hubei, China
| | - Quanyan Liu
- Department of Hepatobiliary and Pancreas, Research Center of Digestive Diseases, Zhongnan Hospital, Wuhan University, Wuhan, Hubei, China.
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40
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Huang W, Lu Y, Wang F, Huang X, Yu Z. Downregulation of circular RNA hsa_circ_0000144 inhibits bladder cancer progression via stimulating miR-217 and suppressing RUNX2 expression. Gene 2018; 678:337-342. [PMID: 30098434 DOI: 10.1016/j.gene.2018.08.036] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2018] [Revised: 07/08/2018] [Accepted: 08/07/2018] [Indexed: 01/11/2023]
Abstract
Although increasing aberrantly expressed circular RNAs (circRNAs) have been identified among many human cancer tissues, their roles in tumor progression still remain largely unknown. In bladder cancer, the function of hsa_circ_0000144 has not been reported. In our study, we found hsa_circ_0000144 as a novel oncogene in bladder cancer by bioinformatics analysis. We found that hsa_circ_0000144 expression was significantly upregulated in bladder cancer tissues compared with adjacent normal tissues, and its high expression was related with poor prognosis. Additionally, knockdown of hsa_circ_0000144 remarkably suppressed the proliferation and invasion of bladder cancer cells in vitro. Hsa_circ_0000144 silence also led to reduced tumor volumes in vivo. In mechanism, we found that hsa_circ_0000144 was a sponge of miR-217 while miR-217 targeted RUNX2. Our results indicated that the expression of miR-217 was inversely correlated with that of both hsa_circ_0000144 and RUNX2 in bladder cancer tissues. Rescue assays showed that either inhibition of miR-217 or restoration of RUNX2 reversed the suppressive effects of hsa_circ_0000144 knockdown on bladder cancer cell proliferation and invasion. Taken together, these findings demonstrated that hsa_circ_0000144 exerts oncogenic roles in bladder cancer via repressing miR-217 to facilitate RUNX2 expression.
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Affiliation(s)
- Weiping Huang
- Department of Urinary Surgery, The First Affiliated Hospital of Wenzhou Medical University, 325000 Wenzhou, China
| | - Yongyong Lu
- Department of Urinary Surgery, The First Affiliated Hospital of Wenzhou Medical University, 325000 Wenzhou, China
| | - Feng Wang
- Department of Urinary Surgery, The First Affiliated Hospital of Wenzhou Medical University, 325000 Wenzhou, China
| | - Xixi Huang
- Department of Urinary Surgery, The First Affiliated Hospital of Wenzhou Medical University, 325000 Wenzhou, China
| | - Zhixian Yu
- Department of Urinary Surgery, The First Affiliated Hospital of Wenzhou Medical University, 325000 Wenzhou, China.
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Yun HH, Baek JY, Seo G, Kim YS, Ko JH, Lee JH. Effect of BIS depletion on HSF1-dependent transcriptional activation in A549 non-small cell lung cancer cells. THE KOREAN JOURNAL OF PHYSIOLOGY & PHARMACOLOGY : OFFICIAL JOURNAL OF THE KOREAN PHYSIOLOGICAL SOCIETY AND THE KOREAN SOCIETY OF PHARMACOLOGY 2018; 22:457-465. [PMID: 29962860 PMCID: PMC6019875 DOI: 10.4196/kjpp.2018.22.4.457] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/10/2018] [Revised: 05/01/2018] [Accepted: 05/01/2018] [Indexed: 12/31/2022]
Abstract
The expression of BCL-2 interacting cell death suppressor (BIS), an anti-stress or anti-apoptotic protein, has been shown to be regulated at the transcriptional level by heat shock factor 1 (HSF1) upon various stresses. Recently, HSF1 was also shown to bind to BIS, but the significance of these protein-protein interactions on HSF1 activity has not been fully defined. In the present study, we observed that complete depletion of BIS using a CRISPR/Cas9 system in A549 non-small cell lung cancer did not affect the induction of heat shock protein (HSP) 70 and HSP27 mRNAs under various stress conditions such as heat shock, proteotoxic stress, and oxidative stress. The lack of a functional association of BIS with HSF1 activity was also demonstrated by transient downregulation of BIS by siRNA in A549 and U87 glioblastoma cells. Endogenous BIS mRNA levels were significantly suppressed in BIS knockout (KO) A549 cells compared to BIS wild type (WT) A549 cells at the constitutive and inducible levels. The promoter activities of BIS and HSP70 as well as the degradation rate of BIS mRNA were not influenced by depletion of BIS. In addition, the expression levels of the mutant BIS construct, in which 14 bp were deleted as in BIS-KO A549 cells, were not different from those of the WT BIS construct, indicating that mRNA stability was not the mechanism for autoregulation of BIS. Our results suggested that BIS was not required for HSF1 activity, but was required for its own expression, which involved an HSF1-independent pathway.
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Affiliation(s)
- Hye Hyeon Yun
- Department of Biochemistry, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea.,The Institute for Aging and Metabolic Diseases, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea
| | - Ji-Ye Baek
- Department of Biochemistry, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea.,The Institute for Aging and Metabolic Diseases, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea
| | - Gwanwoo Seo
- The Institute for Aging and Metabolic Diseases, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea.,Laboratory of Genomic Instability and Cancer Therapeutics, Cancer Mutation Research Center, Chosun University School of medicine, Gwangju 61452, Korea
| | - Yong Sam Kim
- Genome Editing Research Center, KRIBB, Daejeon 34141, Korea.,Department of Biomolecular Science, Korea University of Science and Technology, Daejeon 34113, Korea
| | - Jeong-Heon Ko
- Genome Editing Research Center, KRIBB, Daejeon 34141, Korea.,Department of Biomolecular Science, Korea University of Science and Technology, Daejeon 34113, Korea
| | - Jeong-Hwa Lee
- Department of Biochemistry, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea.,The Institute for Aging and Metabolic Diseases, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea
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Li X, Zhao X, Yang B, Li Y, Liu T, Pang L, Fan Z, Ma W, Liu Z, Li Z. Long non-coding RNA HOXD-AS1 promotes tumor progression and predicts poor prognosis in colorectal cancer. Int J Oncol 2018; 53:21-32. [PMID: 29749477 PMCID: PMC5958811 DOI: 10.3892/ijo.2018.4400] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2018] [Accepted: 03/16/2018] [Indexed: 01/18/2023] Open
Abstract
Mounting evidence has indicated that long non-coding RNAs (lncRNA) serve important roles in tumor development. Previous studies have demonstrated that the lncRNA HOXD cluster antisense RNA 1 (HOXD-AS1) promotes tumor progression in numerous types of cancer; however, the role of HOXD-AS1 in colorectal cancer (CRC) remains unclear. In the present study, the expression levels of HOXD-AS1 were detected in CRC tissues and cell lines using quantitative polymerase chain reaction. In addition, the biological effects of HOXD-AS1 on CRC were evaluated in vitro by cell counting kit-8, colony formation and Transwell assays, and in vivo by tumorigenesis and metastasis assays. The results demonstrated that HOXD-AS1 was upregulated in CRC tissues and cell lines, and that overexpression of HOXD-AS1 was associated with poor prognosis in patients with CRC. Furthermore, knockdown of HOXD-AS1 inhibited cell proliferation, cell invasion, epithelial-mesenchymal transition and stem cell formation in vitro, as well as tumor growth and metastasis in vivo. Mechanistically, HOXD-AS1 functioned as a competing endogenous RNA for miR-217. In conclusion, the present study demonstrated that HOXD-AS1 may promote CRC progression and metastasis by competing for miR-217. In addition, HOXD-AS1 may be considered an indicator of prognosis in patients with CRC.
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Affiliation(s)
- Xiang Li
- Department of Second Medical Oncology, The Affiliated 3201 Hospital of Xi'an Jiaotong University, Hanzhong, Shaanxi 723000, P.R. China
| | - Xinhan Zhao
- Department of Second Medical Oncology, The Affiliated 3201 Hospital of Xi'an Jiaotong University, Hanzhong, Shaanxi 723000, P.R. China
| | - Binhui Yang
- Department of Second Medical Oncology, The Affiliated 3201 Hospital of Xi'an Jiaotong University, Hanzhong, Shaanxi 723000, P.R. China
| | - Yuqing Li
- Department of Second Medical Oncology, The Affiliated 3201 Hospital of Xi'an Jiaotong University, Hanzhong, Shaanxi 723000, P.R. China
| | - Tao Liu
- Department of Second Medical Oncology, The Affiliated 3201 Hospital of Xi'an Jiaotong University, Hanzhong, Shaanxi 723000, P.R. China
| | - Linyuan Pang
- Department of Second Medical Oncology, The Affiliated 3201 Hospital of Xi'an Jiaotong University, Hanzhong, Shaanxi 723000, P.R. China
| | - Zhigang Fan
- Department of Second Medical Oncology, The Affiliated 3201 Hospital of Xi'an Jiaotong University, Hanzhong, Shaanxi 723000, P.R. China
| | - Wu Ma
- Department of Second Medical Oncology, The Affiliated 3201 Hospital of Xi'an Jiaotong University, Hanzhong, Shaanxi 723000, P.R. China
| | - Zhongqiu Liu
- Department of Second Medical Oncology, The Affiliated 3201 Hospital of Xi'an Jiaotong University, Hanzhong, Shaanxi 723000, P.R. China
| | - Zeng Li
- Department of Second Medical Oncology, The Affiliated 3201 Hospital of Xi'an Jiaotong University, Hanzhong, Shaanxi 723000, P.R. China
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Hu L, Wu H, Wan X, Liu L, He Y, Zhu L, Liu S, Yao H, Zhu Z. MicroRNA-585 suppresses tumor proliferation and migration in gastric cancer by directly targeting MAPK1. Biochem Biophys Res Commun 2018; 499:52-58. [DOI: 10.1016/j.bbrc.2018.03.116] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2018] [Accepted: 03/14/2018] [Indexed: 02/07/2023]
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