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Chen Z, Zhang L, Ding C, Ren K, Wan D, Lin S. A six-miRNA signature as a novel biomarker for improving prediction of prognosis and patterns of immune infiltration in hepatocellular carcinoma. Am J Transl Res 2022; 14:3610-3637. [PMID: 35836899 PMCID: PMC9274565] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Accepted: 05/11/2022] [Indexed: 06/15/2023]
Abstract
BACKGROUND Hepatocellular carcinoma (HCC) is one of the leading causes of tumor-related death. MicroRNAs (miRNAs) belong to a subfamily of functional non-coding RNAs (ncRNAs) and are essential regulators of tumorigenesis. They affect tumor-related therapeutic response, tumor metastasis, and clinical outcomes of several human malignant tumors. However, the prognostic value of miRNAs and their role in the tumor immune microenvironment (TIME) of HCC have not been clarified. MATERIALS AND METHODS Raw RNA-sequencing data (mRNA and miRNA) and clinicopathological characteristics of HCC samples were downloaded from the TCGA-GDC database. The Perl programming language, R software, Cytoscape software, and several online databases were used to clarify the clinical significance and biological functions of miRNAs and their target genes in HCC. RESULTS A total of 424 mRNA-sequencing samples and 425 miRNA-sequencing samples were obtained from the TCGA database. There were 344 HCC cases with complete information in the TCGA dataset and they were randomly categorized into two subgroups. Six miRNAs were identified as independent prognostic biomarkers for HCC patients by univariate and multivariate Cox regression analysis. The constructed prognostic signature, which contains these six miRNAs, was significantly correlated with overall survival (OS). In addition, this prognostic signature is superior to single miRNA in predicting short-term prognosis of HCC patients. We also found that the prognostic signature was significantly associated with tumor-related immune cell infiltration, TIME, and immunotherapeutic response. Furthermore, a total of 4568 potential target genes of six miRNAs were identified. The miRNA-mRNA co-expression network, protein-protein interaction (PPI) network, and functional and pathway enrichment analysis demonstrated that these miRNA-related target genes have important biological effects during the initiation and progression of HCC. CONCLUSIONS This study demonstrates that the miRNA signature can accurately predict the prognosis of HCC patients and provide a basis for novel immunotherapy treatments.
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Affiliation(s)
- Zhitao Chen
- Shulan (Hangzhou) Hospital Affiliated to Zhejiang Shuren University Shulan International Medical CollegeHangzhou 310004, Zhejiang, China
| | - Lele Zhang
- First Affiliated Hospital, School of Medicine, Zhejiang UniversityHangzhou 310003, Zhejiang, China
| | - Chenchen Ding
- Shulan (Hangzhou) Hospital Affiliated to Zhejiang Shuren University Shulan International Medical CollegeHangzhou 310004, Zhejiang, China
| | - Kuiwu Ren
- Fuyang People’s HospitalFuyang 236001, Anhui, China
| | - Dalong Wan
- First Affiliated Hospital, School of Medicine, Zhejiang UniversityHangzhou 310003, Zhejiang, China
| | - Shengzhang Lin
- Shulan (Hangzhou) Hospital Affiliated to Zhejiang Shuren University Shulan International Medical CollegeHangzhou 310004, Zhejiang, China
- School of Medicine, Zhejiang University City CollegeHangzhou 310004, Zhejiang, China
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Aghajanzadeh T, Tebbi K, Talkhabi M. Identification of potential key genes and miRNAs involved in Hepatoblastoma pathogenesis and prognosis. J Cell Commun Signal 2021; 15:131-142. [PMID: 33051830 PMCID: PMC7904995 DOI: 10.1007/s12079-020-00584-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2020] [Accepted: 09/15/2020] [Indexed: 12/11/2022] Open
Abstract
Hepatoblastoma (HB) is one of the most common liver malignancies in children, while the molecular basis of the disease is largely unknown. Therefore, this study aims to explore the key genes and molecular mechanisms of the pathogenesis of HB using a bioinformatics approach. The gene expression dataset GSE131329 was used to find differentially expressed genes (DEGs). Functional and enrichment analyses of the DEGs were performed by the EnrichR. Then, the protein-protein interaction (PPI) network of the up-regulated genes was constructed and visualized using STRING database and Cytoscape software, respectively. MCODE was used to detect the significant modules of the PPI network, and cytoHubba was utilized to rank the important nodes (genes) of the PPI modules. Overall, six ranking methods were employed and the results were validated by the Oncopression database. Moreover, the upstream regulatory network and the miRNA-target interactions of the up-regulated DEGs were analyzed by the X2K web and the miRTarBase respectively. A total of 594 DEGs, including 221 up- and 373 down-regulated genes, were obtained, which were enriched in different cellular and metabolic processes, human diseases, and cancer. Furthermore, 15 hub genes were screened, out of which, 11 were validated. Top 10 transcription factors, kinases, and miRNAs were also determined. To the best of our knowledge, the association of RACGAP1, MKI67, FOXM1, SIN3A, miR-193b, and miR-760 with HB was reported for the first time. Our findings may be used to shed light on the underlying mechanisms of HB and provide new insights for better prognosis and therapeutic strategies.
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Affiliation(s)
- Taha Aghajanzadeh
- Department of Animal Sciences and Marine Biology, Faculty of Life Sciences and Biotechnology, Shahid Beheshti University, Tehran, Iran
| | - Kiarash Tebbi
- Department of Animal Sciences and Marine Biology, Faculty of Life Sciences and Biotechnology, Shahid Beheshti University, Tehran, Iran
| | - Mahmood Talkhabi
- Department of Animal Sciences and Marine Biology, Faculty of Life Sciences and Biotechnology, Shahid Beheshti University, Tehran, Iran.
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Wang S, Yang Y, Cao YD, Tang XX, Du P. Androgen downregulation of miR-760 promotes prostate cancer cell growth by regulating IL6. Asian J Androl 2021; 23:85-90. [PMID: 32415054 PMCID: PMC7831841 DOI: 10.4103/aja.aja_20_20] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Prostate cancer (PCa) is one of the most common malignancies in Western countries. Studies have shown that androgen contributes to the progression of PCa, but how androgen promotes PCa remains largely unknown. Here, we demonstrated that androgen suppressed the expression of miR-760 depending on the interaction between androgen and androgen receptor (AR). miR-760 was downregulated in prostate cancer tissues compared with normal tissues. Functional experiments showed that miR-760 downregulation promoted the proliferation and growth of LNCaP and 22rv1 cells. In contrast, miR-760 ectopic expression inhibited the proliferation of LNCaP and 22rv1 cells. DNA synthesis was suppressed by miR-760. Mechanistically, miR-760 bound to the 3'UTR of interleukin 6 (IL6). A mutation in the binding site disrupted their interaction. In addition, silencing of IL6 suppressed the proliferation of LNCaP and 22rv1 cells. IL6 was upregulated in PCa tissues. Our study reveals that androgen downregulates miR-760 to promote the growth of PCa cells by regulating IL6.
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Affiliation(s)
- Shuo Wang
- Department of Urology, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Peking University Cancer Hospital and Institute, Beijing 100142, China
| | - Yong Yang
- Department of Urology, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Peking University Cancer Hospital and Institute, Beijing 100142,, China
| | - Yu-Dong Cao
- Department of Urology, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Peking University Cancer Hospital and Institute, Beijing 100142,, China
| | - Xing-Xing Tang
- Department of Urology, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Peking University Cancer Hospital and Institute, Beijing 100142,, China
| | - Peng Du
- Department of Urology, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Peking University Cancer Hospital and Institute, Beijing 100142,, China
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4
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Parizadeh SM, Jafarzadeh-Esfehani R, Ghandehari M, Goldani F, Parizadeh SMR, Hassanian SM, Ghayour-Mobarhan M, Ferns GA, Avan A. MicroRNAs as Potential Diagnostic and Prognostic Biomarkers in Hepatocellular Carcinoma. Curr Drug Targets 2020; 20:1129-1140. [PMID: 30848198 DOI: 10.2174/1389450120666190307095720] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2019] [Revised: 02/25/2019] [Accepted: 02/25/2019] [Indexed: 12/17/2022]
Abstract
Hepatocellular carcinoma (HCC) is a common cancer, and the second most common cause of cancer-associated death globally. One of the major reasons for this high rate of mortality is a failure to make an early diagnosis. The average survival in untreated HCC patients is estimated to be approximately three months. The 5-year overall survival rate after radical resection is about 15-40% and within two years, more than two third of patients experience a relapse. To date, the most common biomarker which has been used for the diagnosis of HCC is serum alpha-fetoprotein (AFP). However, there is a lack of sensitive and specific tumor biomarkers for the early diagnosis of HCC. MicroRNAs are a class of short endogenous RNA with crucial role in many biological activities and cellular pathways and can be found in various tissues and body fluids. The aim of this review was to summarize the results of recent studies investigating miRNAs as novel biomarkers for the early diagnosis and prognostic risk stratification of patients with this type of liver cancer.
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Affiliation(s)
| | - Reza Jafarzadeh-Esfehani
- Department of Medical Genetics, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Maryam Ghandehari
- Metabolic syndrome Research center, Mashhad University of Medical Sciences, Mashhad, Iran.,Student Research Committee, Faculty of Medicine, Mashhad University of medical sciences, Mashhad, Iran
| | - Fatemeh Goldani
- Metabolic syndrome Research center, Mashhad University of Medical Sciences, Mashhad, Iran
| | | | - Seyed Mahdi Hassanian
- Metabolic syndrome Research center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Majid Ghayour-Mobarhan
- Metabolic syndrome Research center, Mashhad University of Medical Sciences, Mashhad, Iran.,Department of Modern Sciences and Technologies; Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Gordon A Ferns
- Brighton & Sussex Medical School, Division of Medical Education, Falmer, Brighton, Sussex BN1 9PH, United Kingdom
| | - Amir Avan
- Metabolic syndrome Research center, Mashhad University of Medical Sciences, Mashhad, Iran.,Student Research Committee, Faculty of Medicine, Mashhad University of medical sciences, Mashhad, Iran.,Department of Modern Sciences and Technologies; Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
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5
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Ren L, Wang Q, Ma L, Wang D. MicroRNA-760-mediated low expression of DUSP1 impedes the protective effect of NaHS on myocardial ischemia-reperfusion injury. Biochem Cell Biol 2020; 98:378-385. [PMID: 32160475 DOI: 10.1139/bcb-2019-0310] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Myocardial ischemia-reperfusion injury (MIRI) is the leading cause of the poor prognosis for patients undergoing clinical cardiac surgery. Micro-RNAs are involved in MIRI; however, the effect of miR-760 on MIRI and the molecular mechanisms behind it have not yet been described. For our in-vivo experiments, 20 rats were randomly distributed between 2 groups (n = 10): the sham-treatment group and the ischemia-reperfusion (I/R) group. For our in-vitro experiments, H9C2 cells were subjected to hypoxia for 6 h, and then reoxygenated to establish an hypoxia-reoxygenation (H/R) model. High expression levels of of miR-760 were observed in the rats subjected to MIRI and the H9C2 cells subjected to H/R. Further, the levels of lactate dehydrogenase (LDH) and malonaldehyde (MDA) were increased, and the size of the myocardial infarct was notably greater in the rats subjected to MIRI, suggesting that miR-760 worsens the effects of MIRI. The inhibitory effects from NaHS on apoptosis were enhanced, as were the expression levels of cleaved caspase 3 and cleaved PARP in H9C2 cells exposed to H/R, and with low-expression levels of miR-760. TargetScan and dual luciferase reporter assays further confirmed the targeted relationship between dual-specificity protein phosphatase (DUSP1) and miR-760. Additionally, miR-760 overexpression and H/R treatment of H9C2 cells inhibited the expression of DUSP1, which further promoted apoptosis. Furthermore, DUSP1 enhanced the anti-apoptotic effects of NaHS in rats subjected to MIRI. Taken together, these findings suggest that miR-760 inhibits the protective effect of NaHS against MIRI.
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Affiliation(s)
- Lin Ren
- Department of Internal Medicine, Hebei Medical University, Shijiazhuang City, Hebei Province 050011, China.,Department of Cardiology, First Hospital of Qinhuangdao, Qinhuangdao City, Hebei Province 066000, China
| | - Qian Wang
- Department of Geriatrics, First Hospital of Qinhuangdao, Qinhuangdao City, Hebei Province 066000, China
| | - Lixiang Ma
- Department of Cardiology, First Hospital of Qinhuangdao, Qinhuangdao City, Hebei Province 066000, China
| | - Dongmei Wang
- Department of Internal Medicine, Hebei Medical University, Shijiazhuang City, Hebei Province 050011, China
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Yin R, Liu J, Zhao D, Wang F. Long Non-Coding RNA ASB16-AS1 Functions as a miR-760 Sponge to Facilitate the Malignant Phenotype of Osteosarcoma by Increasing HDGF Expression. Onco Targets Ther 2020; 13:2261-2274. [PMID: 32214826 PMCID: PMC7081065 DOI: 10.2147/ott.s240022] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2019] [Accepted: 02/27/2020] [Indexed: 12/15/2022] Open
Abstract
Purpose ASB16 antisense RNA 1 (ASB16-AS1) is a cancer-associated long non-coding RNA that contributes to tumorigenesis and tumor development. Nevertheless, to the best of our knowledge, whether and how ASB16-AS1 is implicated in osteosarcoma (OS) malignancy remains unclear and therefore warrants exploration. Our current study focused on making in-depth investigation of ASB16-AS1 in OS. In the present study, the expression pattern of ASB16-AS1 in OS tissues and cell lines was analyzed. In addition, we examined the clinical value of ASB16-AS1 for OS patients. Furthermore, we explored the impacts of ASB16-AS1 on the malignant phenotype of OS cells in vitro and in vivo as well as the underlying mechanism. Methods ASB16-AS1, microRNA-760 (miR-760) and hepatoma-derived growth factor (HDGF) expressions were measured using reverse transcription-quantitative PCR. Cell proliferation and apoptosis were evaluated using CCK-8 and flow cytometry analyses, respectively, and cell migration and invasion were determined via cell migration and invasion assays. Results ASB16-AS1 expression was significantly elevated in OS tissues and cell lines, and increased ASB16-AS1 expression was related to patients' tumor size, TNM stage, and distant metastasis. The overall survival rate of OS patients presenting high ASB16-AS1 expression was shorter than that of patients presenting low ASB16-AS1 expression. Reduced ASB16-AS1 expression inhibited OS cell proliferation, migration, and invasion; promoted cell apoptosis; and impaired tumor growth in vivo. Mechanistically, ASB16-AS1 served as a sponge for miR-760 and positively modulated the expression of its target HDGF. Finally, inhibiting miR-760 and restoring HDGF expression abolished the impacts of ASB16-AS1 knockdown on the malignant characteristics of OS cells. Conclusion ASB16-AS1 is a novel oncogenic lncRNA in OS cells. ASB16-AS1 increased HDGF expression by sponging miR-760, thereby conferring cancer-promoting roles in OS. ASB16-AS1 is a potential early diagnostic and therapeutic target in OS.
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Affiliation(s)
- Ruofeng Yin
- Department of Orthopedics, China-Japan Union Hospital Jilin University, Changchun, Jilin 130033, People's Republic of China
| | - Junzhi Liu
- Department of Quality Control, China-Japan Union Hospital Jilin University, Changchun, Jilin 130033, People's Republic of China
| | - Dongxu Zhao
- Department of Orthopedics, China-Japan Union Hospital Jilin University, Changchun, Jilin 130033, People's Republic of China
| | - Fei Wang
- Department of Orthopedics, China-Japan Union Hospital Jilin University, Changchun, Jilin 130033, People's Republic of China
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7
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Li L, Yu P, Zhang P, Wu H, Chen Q, Li S, Wang Y. Upregulation of hsa_circ_0007874 suppresses the progression of ovarian cancer by regulating the miR-760/SOCS3 pathway. Cancer Med 2020; 9:2491-2499. [PMID: 32023009 PMCID: PMC7131836 DOI: 10.1002/cam4.2866] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2019] [Revised: 12/26/2019] [Accepted: 12/30/2019] [Indexed: 01/17/2023] Open
Abstract
Ovarian cancer (OVA) is a fatal and common malignancy in women worldwide. Circular RNAs (circRNAs) consist of a family of circular endogenous RNAs generated by selective splicing, and they are involved in many diseases. Previous studies reported that hsa_circ_0007874 is aberrantly expressed in cancer and functions in tumorigenesis. While the hsa_circ_0007874 role in OVA is unclear. Here, we detected the hsa_circ_0007874 expression in OVA cell lines using Rt‐qPCR. Hsa_circ_0007874 subcellular localization was confirmed by fluorescence in situ hybridization. The relationship between hsa_circ_0007874, microRNAs (miRNAs), and relative protein levels was assessed using the luciferase reporter assays. Results verified that hsa_circ_0007874 is downregulated in OVA cell lines. hsa_circ_0007874 overexpression decreased the OVA cell migration and proliferation in vitro and in vivo. Bioinformatics and luciferase reporter assays confirmed that miR‐760 and SOCS3 are the downstream targets of hsa_circ_0007874. Downregulation of SOCS3 or miR‐760 overexpression restored the migration and proliferation ability of SKOV3 or A2780 cells overexpressing hsa_circ_0007874. Downregulation of SOCS3 restored the proliferation and migration in miR‐760 knockdown SKOV3 and A2780 cells. In summary, the data suggest that hsa_circ_0007874 acts as a tumor suppressor by regulating the miR‐760/SOCS3 axis, highlighting its potential as an effective therapeutic target for OVA.
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Affiliation(s)
- Li Li
- Department of Gynecology and Obstetrics, Tongji Hospital, Tongji University School of Medicine, Shanghai, China
| | - Poling Yu
- Department of Surgery, School of Medicine, National Yang-Ming University, Taipei, Taiwan, China
| | - Ping Zhang
- Department of Reproductive Medicine, Linyi People's Hospital, Linyi City, China
| | - Huanmei Wu
- Department of BioHealth Informatics, School of Informatics and Computing, Indiana University Purdue University Indianapolis, Indianapolis, IN, USA
| | - Qizhen Chen
- Department of Gynecology and Obstetrics, Tongji Hospital, Tongji University School of Medicine, Shanghai, China
| | - Shuangdi Li
- Department of Gynecology, Shanghai First maternity and infant Hospital, Shanghai, China
| | - Yanqiu Wang
- Reproductive Medical Center, Tongji Hospital, Tongji University School of Medicine, Shanghai, China
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8
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Ge L, Wang Y, Duan QH, Liu SS, Liu GJ. MicroRNA-760 acts as a tumor suppressor in gastric cancer development via inhibiting G-protein-coupled receptor kinase interacting protein-1 transcription. World J Gastroenterol 2019; 25:6619-6633. [PMID: 31832002 PMCID: PMC6906209 DOI: 10.3748/wjg.v25.i45.6619] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/05/2019] [Revised: 10/29/2019] [Accepted: 11/13/2019] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Gastric cancer (GC) has become a serious threat to people's health. Accumulative evidence reveals that dysregulation of numerous microRNAs (miRNAs) has been found during malignant formation. So far, the role of microRNA-760 (miR-760) in the development of GC is largely unknown.
AIM To measure the expression level of miR-760 in GC and investigate its role in gastric tumorigenesis.
METHODS Real-time quantitative polymerase chain reaction and Western blot analysis were used to measure the expression of miR-760 and G-protein-coupled receptor kinase interacting protein-1 (GIT1). Cell growth was detected by 3-(4,5-dimethyl-2-thiazolyl)-2,5-diphenyl-2-H-tetrazolium bromide (MTT) and cell colony formation assays. Apoptosis was assessed by flow cytometric analysis. The relationship between miR-760 and GIT1 was verified by luciferase reporter assay.
RESULTS The results showed that the expression of miR-760 was decreased in GC and associated with poor clinical outcomes in GC patients. Furthermore, miR-760 restrained cell proliferation and cell colony formation and induced apoptosis in GC cells. In addition, miR-760 directly targeted GIT1 and negatively regulated its expression in GC. GIT1 was upregulated in GC and predicted a worse prognosis in GC patients. We also found that upregulation of GIT1 weakened the inhibitory effect of miR-760 in GC.
CONCLUSION In conclusion, miR-760 targets GIT1 to inhibit cell growth and promote apoptosis in GC cells. Our data demonstrate that miR-760 may be a potential target for the treatment of GC.
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Affiliation(s)
- Liang Ge
- Department of Anal and Intestinal Surgery, Affiliated Hospital of Weifang Medical University, Weifang 261031, Shandong Province, China
| | - Yu Wang
- Department of Anal and Intestinal Surgery, Affiliated Hospital of Weifang Medical University, Weifang 261031, Shandong Province, China
| | - Quan-Hong Duan
- Department of Anal and Intestinal Surgery, Affiliated Hospital of Weifang Medical University, Weifang 261031, Shandong Province, China
| | - Song-Shan Liu
- Department of Surgery, Weifang Medical College, Weifang 261031, Shandong Province, China
| | - Guo-Jing Liu
- Department of Anal and Intestinal Surgery, Affiliated Hospital of Weifang Medical University, Weifang 261031, Shandong Province, China
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Tang X, Wang J, Zhou S, Zhou J, Jia G, Wang H, Xin C, Fu G, Zhang J. miR‑760 regulates skeletal muscle proliferation in rheumatoid arthritis by targeting Myo18b. Mol Med Rep 2019; 20:4843-4854. [PMID: 31661144 PMCID: PMC6854551 DOI: 10.3892/mmr.2019.10775] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2019] [Accepted: 07/17/2019] [Indexed: 12/20/2022] Open
Abstract
MicroRNAs serve an important role in the development of several diseases. Numerous genes regulate the skeletal muscle differentiation of C2C12 myoblasts. The role of miR-760 in rheumatoid arthritis (RA) has not been reported, to the best of our knowledge. Therefore, the aim of the present study was to examine the role of miR-760 in regulating skeletal muscle proliferation in RA. Potential genes functionally involved in the tarsal joint of a collagen-induced RA model were identified using Gene Expression Omnibus. Reverse transcription-quantitative PCR and western blot analyses were performed to determine the mRNA and protein expression levels. The proliferation, cell cycle progression and migration of C2C12 myoblasts were detected using Cell Counting Kit-8, flow cytometry and wound-healing assays, respectively. TargetScan was used to predict the potential target genes of miR-760, and this was verified using a dual-luciferase reporter assay. In the present study, myosin-18b (Myo18b) expression was determined to be downregulated in the RA model. Silencing Myo18b decreased the proliferation, abrogated the cell cycle progression, and reduced the migration and differentiation of C2C12 myoblasts. Expression levels of cyclin-dependent kinase 2, cyclin D1, matrix metalloproteinase (MMP)-2, MMP-9, myogenin and myosin heavy chain 6 were all decreased when Myo18b was silenced. Furthermore, overexpression of Myo18b induced opposing effects on C2C12 myoblasts. It was shown that Myo18b was a target gene of miRNA-760. Overexpression of miR-760 decreased proliferation, cell cycle progression, migration and differentiation in C2C12 myoblasts, and decreased the expression of Myo18b. The opposite results were observed when miR-760 was downregulated. In conclusion, miR-760 inhibited proliferation and differentiation by targeting Myo18b in C2C12 myoblasts. The results of the present study may contribute to understanding the mechanisms underlying RA skeletal muscle proliferation, and miR-760/Myo18b may serve as potential targets for treating patients with RA.
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Affiliation(s)
- Xujun Tang
- Department of Osteoarthritis, Jining No. 2 People's Hospital, Jining, Shandong 272049, P.R. China
| | - Jiuxia Wang
- Department of Bone Oncology, Gansu Provincial Hospital of Traditional Chinese Medicine, Lanzhou, Gansu 730050, P.R. China
| | - Shuhong Zhou
- Department of Rheumatology, Gansu Provincial Hospital, Lanzhou, Gansu 730000, P.R. China
| | - Jing Zhou
- Department of Rheumatology, Gansu Provincial Hospital, Lanzhou, Gansu 730000, P.R. China
| | - Guyou Jia
- Department of Osteoarthritis, Jining No. 2 People's Hospital, Jining, Shandong 272049, P.R. China
| | - Han Wang
- Department of Osteoarthritis, Jining No. 2 People's Hospital, Jining, Shandong 272049, P.R. China
| | - Chunlei Xin
- Department of Hematology, Jining No. 1 People's Hospital, Jining, Shandong 272011, P.R. China
| | - Guoning Fu
- Department of Hematology, Jining No. 1 People's Hospital, Jining, Shandong 272011, P.R. China
| | - Jiahong Zhang
- Department of Rheumatology, Gansu Provincial Hospital, Lanzhou, Gansu 730000, P.R. China
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Wang L, Zhao Y, Xiong W, Ye W, Zhao W, Hua Y. MicroRNA-449a Is Downregulated in Cervical Cancer and Inhibits Proliferation, Migration, and Invasion. Oncol Res Treat 2019; 42:564-571. [PMID: 31578014 DOI: 10.1159/000502122] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2019] [Accepted: 07/13/2019] [Indexed: 02/03/2023]
Abstract
INTRODUCTION Cervical cancer is one of the most common malignant tumors among women in the world. MicroRNA-449a (miR-449a) has been identified as a tumor suppressor gene in various cancers. Our present study aimed to explore the biological role of miR-449a in cervical cancer. METHODS The expression of miR-449a in cervical cancer tissues and cell lines was detected using real-time quantitative PCR. Kaplan-Meier survival analysis and a Cox regression assay were used to identify the prognostic significance of miR-449a in cervical cancer. A CCK-8 assay and a Transwell assay were performed to determine the impact of miR-449a on the proliferation, migration, and invasion of cervical cancer cells. RESULTS The expression of miR-449a was decreased in both cervical cancer tissues and cell lines. The decreased expression of miR-449a was significantly associated with lymph node metastasis, differentiation, and FIGO stage, as well as with poor survival. In vitro, transfection of miR-449a mimic into cervical cancer cells inhibited cell proliferation, migration, and invasion. CONCLUSION All of the results revealed that miR-449a functions as a suppressor gene and inhibits cell proliferation, migration, and invasion in cervical cancer. In addition, it may serve as a prognostic biomarker for cervical cancer.
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Affiliation(s)
- Lianyun Wang
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Yu Zhao
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Wendong Xiong
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Wen Ye
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Weidong Zhao
- Division of Life Sciences and Medicine, The First Affiliated Hospital of USTC, University of Science and Technology of China, Hefei, China,
| | - Ying Hua
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
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