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Lin G, Liu X, Cong C, Xu L. Prognostic significance of long noncoding RNA TTN-AS1 in various malignancies. Cancer Rep (Hoboken) 2023; 6:e1876. [PMID: 37528740 PMCID: PMC10598252 DOI: 10.1002/cnr2.1876] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Revised: 06/14/2023] [Accepted: 06/30/2023] [Indexed: 08/03/2023] Open
Abstract
BACKGROUND Increasing evidence has demonstrated that high TTN-AS1 expression is highly related to poor prognosis in diverse human cancers. However, the findings concerning the prognostic value of TTN-AS1 were inconsistent, as these conclusions were usually drawn with relatively small sample sizes. Hence, this meta-analysis proposes to investigate the prognostic significance of TTN-AS1 in multiple malignancies systematically. METHODS Web of Science, Springer, Embase, PubMed, Cochrane Library, and Scopus databases were comprehensively searched to retrieve studies related to the TTN-AS1 expression with the prognosis of malignancies. The significance of the TTN-AS1 in cancers was estimated by hazard ratios (HRs) or odds ratios (ORs). Additionally, the Gene Expression Profiling Interactive Analysis (GEPIA) analysis tool was used to strengthen our results further. RESULTS Twenty studies involving 17 different cancers and 1330 patients were recruited into this meta-analysis. The research revealed that high TTN-AS1 expression was remarkably associated with unfavorable overall survival (OS) (HR = 2.07, 95%CI [1.78, 2.41], p < .00001) when compared with low TTN-AS1 expression in malignancies. Additionally, elevated TTN-AS1 expression significantly contributed to lymph node metastasis (OR = 4.09, 95%CI [3.08, 5.44], p < .0001), larger tumor size (OR = 2.42, 95%CI [1.56, 3.77], p < .0001), worse tumor differentiation (OR = 0.36, 95%CI [0.22, 0.59], p < .0001) and more advanced tumor stage (OR = 0.29, 95%CI [0.22, 0.38], p < .0001) with low or no heterogeneity existing. Moreover, high TTN-AS1 expression was connected with worse disease-free survival in five different cancers based on the GEPIA online database. CONCLUSIONS The results of this meta-analysis support that high TTN-AS1 expression significantly correlates with worse prognosis in various cancers. Therefore, TTN-AS1 may be considered as a novel biomarker for malignancies.
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Affiliation(s)
- Guangyao Lin
- Department of Gynecology, Longhua HospitalShanghai University of Traditional Chinese MedicineShanghaiChina
| | - Xiyu Liu
- Department of Gynecology, Longhua HospitalShanghai University of Traditional Chinese MedicineShanghaiChina
| | - Chao Cong
- Department of Gynecology, Longhua HospitalShanghai University of Traditional Chinese MedicineShanghaiChina
| | - Lianwei Xu
- Department of Gynecology, Longhua HospitalShanghai University of Traditional Chinese MedicineShanghaiChina
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Alamri AM, Alkhilaiwi FA, Khan NU, Tasleem M. In silico Screening and Validation of Achyranthes aspera as a Potential Inhibitor of BRAF and NRAS in Controlling Thyroid Cancer. Anticancer Agents Med Chem 2023; 23:2111-2126. [PMID: 37287303 DOI: 10.2174/1871520623666230607125258] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Revised: 05/10/2023] [Accepted: 05/12/2023] [Indexed: 06/09/2023]
Abstract
BACKGROUND Thyroid carcinoma (THCA) is one of the most prevalent endocrine tumors, accounting for 3.4% of all cancers diagnosed annually. Single Nucleotide Polymorphisms (SNPs) are the most prevalent genetic variation associated with thyroid cancer. Understanding thyroid cancer genetics will enhance diagnosis, prognosis, and treatment. METHODS This TCGA-based study analyzes thyroid cancer-associated highly mutated genes through highly robust in silico techniques. Pathway, gene expression, and survival studies were performed on the top 10 highly mutated genes (BRAF, NRAS, TG, TTN, HRAS, MUC16, ZFHX3, CSMD2, EIFIAX, SPTA1). Novel natural compounds from Achyranthes aspera Linn were discovered to target two highly mutated genes. The natural compounds and synthetic drugs used to treat thyroid cancer were subjected to comparative molecular docking against BRAF and NRAS targets. The ADME characteristics of Achyranthes aspera Linn compounds were also investigated. RESULTS The gene expression analysis revealed that the expression of ZFHX3, MCU16, EIF1AX, HRAS, and NRAS was up-regulated in tumor cells while BRAF, TTN, TG, CSMD2, and SPTA1 were down-regulated in tumor cells. In addition, the protein-protein interaction network demonstrated that HRAS, BRAF, NRAS, SPTA1, and TG proteins have strong interactions with each other as compared to other genes. The ADMET analysis shows that seven compounds have druglike properties. These compounds were further studied for molecular docking studies. The compounds MPHY012847, IMPHY005295, and IMPHY000939 show higher binding affinity with BRAF than pimasertib. In addition, IMPHY000939, IMPHY000303, IMPHY012847, and IMPHY005295 showed a better binding affinity with NRAS than Guanosine Triphosphate. CONCLUSION The outcomes of docking experiments conducted on BRAF and NRAS provide insight into natural compounds with pharmacological characteristics. These findings indicate that natural compounds derived from plants as a more promising cancer treatment option. Thus, the results of docking investigations conducted on BRAF and NRAS substantiate the conclusions that the molecule possesses the most suited drug-like qualities. Compared to other compounds, natural compounds are superior, and they are also druggable. This demonstrates that natural plant compounds can be an excellent source of potential anti-cancer agents. The preclinical research will pave the road for a possible anti-cancer agent.
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Affiliation(s)
- Ahmad M Alamri
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, King Khalid University, Abha, 61413, Saudi Arabia
- Cancer Research Unit, King Khalid University, Abha, 61413, Saudi Arabia
| | - Faris A Alkhilaiwi
- Department of Natural Products and Alternative Medicine, Faculty of Pharmacy, King Abdulaziz University, Jeddah, 21589, Saudi Arabia
- Regenerative Medicine Unit, King Fahd Medical Research Center, King Abdulaziz University, Jeddah, 21589, Saudi Arabia
| | - Najeeb U Khan
- Institute of Biotechnology and Genetic Engineering (Health Division), The University of Agriculture Peshawar, Peshawar, 25130, Pakistan
| | - Munazzah Tasleem
- School of Electronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu, 610054, Sichuan, China
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Yousefnia S. A comprehensive review on miR-153: Mechanistic and controversial roles of miR-153 in tumorigenicity of cancer cells. Front Oncol 2022; 12:985897. [PMID: 36158686 PMCID: PMC9500380 DOI: 10.3389/fonc.2022.985897] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Accepted: 08/22/2022] [Indexed: 11/13/2022] Open
Abstract
miRNAs play a crucial role in regulating genes involved in cancer progression. Recently, miR-153 has been mainly well-known as a tumor suppressive miRNA modulating genes in proliferation, metastasis, EMT, angiogenesis and drug resistance ability of a variety types of cancer. Mechanistic activity of miR-153 in tumorigenicity has not been fully reviewed. This manuscript presents a comprehensive review on the tumor suppressive activity of miR-153 as well as introducing the controversial role of miR-153 as an oncogenic miRNA in cancer. Furthermore, it summarizes all potential non-coding RNAs such as long non-coding RNAs (LncRNAs), transcribed ultra-conserved regions (T-UCRs) and circular RNAs (CircRNAs) targeting and sponging miR-153. Understanding the critical role of miR-153 in cell growth, metastasis, angiogenesis and drug resistance ability of cancer cells, suggests miR-153 as a potential prognostic biomarker for detecting cancer as well as providing a novel treatment strategy to combat with several types of cancer.
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4
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Chen J, Wen Y, Su H, Yu X, Hong R, Chen C, Su C. Deciphering Prognostic Value of TTN and Its Correlation With Immune Infiltration in Lung Adenocarcinoma. Front Oncol 2022; 12:877878. [PMID: 35875159 PMCID: PMC9304871 DOI: 10.3389/fonc.2022.877878] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Accepted: 05/24/2022] [Indexed: 11/23/2022] Open
Abstract
Background Lung adenocarcinoma (LUAD) is the most common type of lung cancer, accounting for around 40%. Despite achievements in the treatment approach, the prognosis is still dismal, with overall survival of fewer than five years. Thus, novel prognostic biomarkers are needed to predict the clinical outcomes of individual patients better. TTN has a high mutation rate in the LUAD, which encodes a large abundant protein of striated muscle. However, the value of TTN in prognosis and the immune environment are poorly understood. Methods We investigated the clinicopathological characteristics, transcriptional and protein level, prognostic value, biological function, and its relationship with immune infiltration of TTN gene in LUAD patients through bioinformatics analysis. Results TTN expression was significantly lower in LUAD than that in normal lung tissue. Lower TTN expression was associated with worse survival. Besides, TTN is highly expressed in alveolar type 2 cells which were surmised as the origin of LUAD. Conclusion Our findings indicated the potential prognostic value of TTN and its role as a biomarker for determining the immune infiltration levels in patients with LUAD.
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Affiliation(s)
- Jianing Chen
- School of Medicine, Tongji University, Shanghai, China
- Department of Medical Oncology, Shanghai Pulmonary Hospital & Thoracic Cancer Institute, School of Medicine, Tongji University, Shanghai, China
| | - Yaokai Wen
- School of Medicine, Tongji University, Shanghai, China
- Department of Medical Oncology, Shanghai Pulmonary Hospital & Thoracic Cancer Institute, School of Medicine, Tongji University, Shanghai, China
| | - Hang Su
- Department of Thoracic Surgery, Shanghai Pulmonary Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Xin Yu
- Department of Medical Oncology, Shanghai Pulmonary Hospital & Thoracic Cancer Institute, School of Medicine, Tongji University, Shanghai, China
| | - Ruisheng Hong
- Department of Radiation Oncology, First Affiliated Hospital of Soochow University, Suzhou, China
| | - Chang Chen
- Department of Thoracic Surgery, Shanghai Pulmonary Hospital, School of Medicine, Tongji University, Shanghai, China
- *Correspondence: Chunxia Su, ; Chang Chen,
| | - Chunxia Su
- Department of Medical Oncology, Shanghai Pulmonary Hospital & Thoracic Cancer Institute, School of Medicine, Tongji University, Shanghai, China
- *Correspondence: Chunxia Su, ; Chang Chen,
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Wang S, Dong L, Ma L, Yang S, Zheng Y, Zhang J, Wu C, Zhao Y, Hou Y, Li H, Wang T. SQLE facilitates the pancreatic cancer progression via the lncRNA-TTN-AS1/miR-133b/SQLE axis. J Cell Mol Med 2022; 26:3636-3647. [PMID: 35638462 PMCID: PMC9258714 DOI: 10.1111/jcmm.17347] [Citation(s) in RCA: 0] [Impact Index Per Article: 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] [Revised: 03/24/2022] [Accepted: 04/05/2022] [Indexed: 02/04/2023] Open
Abstract
Studies have shown that SQLE is highly expressed in a variety of tumours and promotes tumour progression. However, the role of SQLE in pancreatic cancer (PC) has not been reported. Here, we aim to study the role and molecular mechanism of SQLE in PC. Immunohistochemistry and functional experiments showed that SQLE was highly expressed in PC tissues and promoted the proliferation and invasion of PC cells. Terbinafine, an inhibitor of SQLE, inhibited this effect. In order to further study the upstream mechanism that regulates SQLE, we used bioinformatics technology to lock miR-133b and lncRNA-TTN-AS. In situ hybridization was used to detect the expression of miR-133b and lncRNA-TTN-AS1 in PC tissues. The luciferase reporter gene experiment was used to confirm the binding of miR-133b and lncRNA-TTN-AS1. The results showed that miR-133b was down-regulated in PC tissues and negatively correlated with the expression of SQLE. LncRNA-TTN-AS1 was upregulated in pancreatic cancer tissues and positively correlated with the expression of SQLE. Luciferase gene reporter gene analysis confirmed lncRNA-TTN-AS1 directly binded to miR-133b. Therefore, we propose that targeting the lncRNA-TTN-AS1/miR-133b/SQLE axis is expected to provide new ideas for the clinical treatment of PC patients.
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Affiliation(s)
- Shuhui Wang
- Department of Digestive Disease and Gastrointestinal Motility Research RoomThe Second Affiliated Hospital of Xi’an Jiaotong UniversityXi’anChina
- Department of Infectious DiseasesShenzhen Nanshan District Shekou People’s HospitalShenzhenChina
| | - Lei Dong
- Department of Digestive Disease and Gastrointestinal Motility Research RoomThe Second Affiliated Hospital of Xi’an Jiaotong UniversityXi’anChina
| | - Lin Ma
- Department of GastroenterologyShaanxi Provincial People’s HospitalXi’anChina
| | - Suzhen Yang
- Department of Digestive Disease and Gastrointestinal Motility Research RoomThe Second Affiliated Hospital of Xi’an Jiaotong UniversityXi’anChina
| | - Ying Zheng
- Department of Digestive Disease and Gastrointestinal Motility Research RoomThe Second Affiliated Hospital of Xi’an Jiaotong UniversityXi’anChina
| | - Jing Zhang
- Department of Kidney TransplantationNephropathy HospitalThe First Affiliated Hospital of Xi'an Jiaotong UniversityXi’anChina
| | - Chuanghong Wu
- Department of Infectious DiseasesShenzhen Nanshan District Shekou People’s HospitalShenzhenChina
| | - Yidi Zhao
- Emergency DepartmentThe Second Affiliated Hospital of Xi’an Jiaotong UniversityXi’anChina
| | - Yangfan Hou
- Department of Respiratory and Critical Care MedicineThe Second Affiliated Hospital of Xi’an Jiaotong UniversityXi’anChina
| | - Hong Li
- Department of Digestive Disease and Gastrointestinal Motility Research RoomThe Second Affiliated Hospital of Xi’an Jiaotong UniversityXi’anChina
| | - Ting Wang
- Department of Digestive Disease and Gastrointestinal Motility Research RoomThe Second Affiliated Hospital of Xi’an Jiaotong UniversityXi’anChina
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Yang G, Zhang C. CTBP1-AS2 promoted non-small cell lung cancer progression via sponging the miR-623/MMP3 axis. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:38385-38394. [PMID: 35076836 DOI: 10.1007/s11356-021-15921-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/10/2020] [Accepted: 08/07/2021] [Indexed: 06/14/2023]
Abstract
Mounting evidence indicates that lncRNAs (long noncoding RNAs) are involved in the initiation and development of tumors, including non-small cell lung cancer (NSCLC). However, the involvement of C-terminal binding protein-antisense RNA 2 (CTBP1-AS2) in NSCLC remains to be studied. RT-qPCR was carried out to detect CTBP1-AS2 and miR-623 expression in NSCLC cells and tissues. CCK-8 and flow cytometry were performed to measure cell proliferation and cell cycle progression. Luciferase reporter analysis was performed to study the potential target of CTBP1-AS2. We found that CTBP1-AS2 expression was upregulated in NSCLC cells (SPC-A1, A549, H23, and H1299) compared to 16HBE cells. We demonstrated that the CTBP1-AS2 level was higher in NSCLC specimens than in paired non-tumor specimens. Elevated expression of CTBP1-AS2 increased cell growth and induced cell cycle progression and epithelial-mesenchymal transition (EMT). We also found that ectopic expression of CTBP1-AS2 inhibited miR-623 expression. MMP3 was a direct target of miR-623, and luciferase reporter assays suggested that miR-623 overexpression suppressed the luciferase expression driven by the MMP3 wild-type reporter but not the mutant reporter. Overexpression of miR-623 suppressed MMP3 expression in A549 cells, and overexpression of CTBP1-AS2 increased MMP3 expression in A549 cells. Moreover, the miR-623 level was lower in NSCLC specimens than in paired non-tumor specimens, and CTBP1-AS2 expression was negatively correlated with miR-623 expression in NSCLC samples. Furthermore, overexpression of CTBP1-AS2 enhanced cell growth, cell cycle progression, and EMT progression by modulating MMP3 expression.
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Affiliation(s)
- Guanying Yang
- Department of Occupational Disease, Daqing People's Hospital, Daqing, 163316, Heilongjiang, China
| | - Chunjie Zhang
- Department of Occupational Disease, Daqing People's Hospital, Daqing, 163316, Heilongjiang, China.
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7
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Zhang Y, Lu KN, Ding JW, Peng Y, Pan G, Teng LS, Luo DC. Identification of Long Noncoding RNAs Associated With the Clinicopathological Features of Papillary Thyroid Carcinoma Complicated With Hashimoto’s Thyroiditis. Front Oncol 2022; 12:766016. [PMID: 35359359 PMCID: PMC8963332 DOI: 10.3389/fonc.2022.766016] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2021] [Accepted: 02/11/2022] [Indexed: 12/20/2022] Open
Abstract
Long noncoding RNAs (lncRNAs) play a significant role in cancer biology. This study aimed to determine the roles of lncRNAs in establishing the differences in clinical features between patients with papillary thyroid carcinoma (PTC) without Hashimoto’s thyroiditis (HT) and patients with PTC and HT. In the present study, we detected the differentially expressed lncRNAs between tumor tissues of patients with PTC with or without HT through lncRNA microarrays. The data were verified and analyzed through qRT-PCR, cell viability, cell cycle and bioinformatics analyses. We found that 1031 lncRNAs and 1338 mRNAs were abnormally expressed in 5 tissue samples of PTC complicated with HT [PTC/HT (+)] compared with 5 samples of PTC without HT [PTC/HT (-)]. Gene Ontology and pathway analyses of the mRNAs suggested that several biological processes and pathways, particularly immune system processes, were induced in the PTC/HT (+) tissues. Twenty lncRNAs were verified in 31 PTC/HT (+) and 64 PTC/HT (-) specimens by qRT-PCR, and the results were consistent with the microarray data. Specifically, ENST00000452578, a downregulated lncRNA in PTC/HT(+), was negatively correlated with the tumor size. Cell viability assays revealed that ENST00000452578 could inhibit cell proliferation. Our results indicate that lncRNAs and mRNAs play an important role in establishing the different clinical characteristics between patients with PTC/HT(+) and patients with PTC/HT(-), and might provide new insights from the perspective of RNA for obtaining a further understanding of the clinical features related to PTC with HT.
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Affiliation(s)
- Yu Zhang
- Department of Oncological Surgery, Affiliated Hangzhou First People’s Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Kai-Ning Lu
- Department of Oncological Surgery, Affiliated Hangzhou First People’s Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Jin-Wang Ding
- Department of Head and Neck Surgery, Cancer Hospital of the University of Chinese Academy of Sciences, Hangzhou, China
| | - You Peng
- Department of Oncological Surgery, Affiliated Hangzhou First People’s Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Gang Pan
- Department of Oncological Surgery, Affiliated Hangzhou First People’s Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Li-Song Teng
- Cancer Center, The First Affiliated Hospital, Zhejiang University school of Medicine, Hangzhou, China
- *Correspondence: Li-Song Teng, ; Ding-Cun Luo,
| | - Ding-Cun Luo
- Department of Oncological Surgery, Affiliated Hangzhou First People’s Hospital, Zhejiang University School of Medicine, Hangzhou, China
- *Correspondence: Li-Song Teng, ; Ding-Cun Luo,
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8
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Papaioannou M, Chorti AG, Chatzikyriakidou A, Giannoulis K, Bakkar S, Papavramidis TS. MicroRNAs in Papillary Thyroid Cancer: What Is New in Diagnosis and Treatment. Front Oncol 2022; 11:755097. [PMID: 35186709 PMCID: PMC8851242 DOI: 10.3389/fonc.2021.755097] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2021] [Accepted: 12/08/2021] [Indexed: 12/12/2022] Open
Abstract
Introduction Papillary thyroid cancer (PTC) accounts for up to 80% of thyroid malignancies. New diagnostic and therapeutic options are suggested including innovative molecular methods. MicroRNAs (miRNAs) are nonprotein coding single-stranded RNAs that regulate many cell processes. The aim of the present study is to review the deregulated miRNAs associated with PTCs. Methods A bibliographic research was conducted, resulting in 272 articles referred to miRNAs and PTC. Regarding our exclusion criteria, 183 articles were finally included in our review. Results A remarkably large number of miRNAs have been found to be deregulated during PTC manifestation in the literature. The deregulated miRNAs are detected in tissue samples, serum/plasma, and FNA samples of patients with PTC. These miRNAs are related to several molecular pathways, involving genes and proteins responsible for important biological processes. MiRNA deregulation is associated with tumor aggressiveness, including larger tumor size, multifocality, extrathyroidal extension, lymphovascular invasion, lymph node and distant metastasis, and advanced tumor node metastasis stage. Conclusion MiRNAs are proposed as new diagnostic and therapeutic tools regarding PTC. They could be essential biomarkers for PTC diagnosis applied in serum and FNA samples, while their contribution to prognosis is of great importance.
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Affiliation(s)
- Maria Papaioannou
- Laboratory of Biological Chemistry, School of Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Angeliki G. Chorti
- 1st Propedeutic Department of Surgery, American Hellenic Educational Progressive Association (AHEPA) University Hospital, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Anthoula Chatzikyriakidou
- Laboratory of Medical Biology, School of Medicine, Faculty of Health Science, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Kleanthis Giannoulis
- 1st Propedeutic Department of Surgery, American Hellenic Educational Progressive Association (AHEPA) University Hospital, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Sohail Bakkar
- Department of Surgery, Faculty of Medicine, The Hashemite University, Zarqa, Jordan
| | - Theodosios S. Papavramidis
- 1st Propedeutic Department of Surgery, American Hellenic Educational Progressive Association (AHEPA) University Hospital, Aristotle University of Thessaloniki, Thessaloniki, Greece
- *Correspondence: Theodosios S. Papavramidis,
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Xiao H, Huang W, Li Y, Zhang R, Yang L. Targeting Long Non-Coding RNA TTN-AS1 Suppresses Bladder Cancer Progression. Front Genet 2021; 12:704712. [PMID: 34671381 PMCID: PMC8522982 DOI: 10.3389/fgene.2021.704712] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2021] [Accepted: 08/26/2021] [Indexed: 11/13/2022] Open
Abstract
Background: To explore the biological and clinical effects of titin-antisense RNA1 (TTN-AS1) in bladder cancer (BC) and the association between TTN-AS1 and activating transcription factor 2 (ATF2) in BC. Methods: The Kaplan-Meier method was performed to analyze the association between the expression of TTN-AS1 and prognosis of BC patients from TCGA data set and our institution. Quantitative real-time PCR (RT-PCR) was conducted to explore the expression of TTN-AS1 between the patients who underwent TURBT and Re-TURBT. MTT, colony formation, and tumor formation assays were conducted to evaluate the effect of TTN-AS1 on the ability of proliferation in BC cell lines. Transwell assay was performed to evaluate the effect of TTN-AS1 on the ability of invasion in BC cell lines. Bioinfomatics and immunohistochemical staining was used to identify the relationship between TTN-AS1 and ATF2. Results: The higher expression of TTN-AS1 was related to poorer disease-free survival (DFS) in patients with BC. The expression of TTN-AS1 was higher in BC patients who underwent Re-TURBT compared with BC patients who underwent TURBT. Knocking down TTN-AS1 resulted in inhibiting the ability of proliferation and invasion of BC cells. ATF2 may serve as a downstream target of TTN-AS1 in BC, and the high expression of ATF2 is also related to adverse DFS. Conclusion: Our study reveals that TTN-AS1 serves as an oncogene by activating ATF2 in BC. The findings suggest that TTN-AS1 may act as a novel therapeutic target for patients with BC.
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Affiliation(s)
- Huiyuan Xiao
- Department of Urology, Tianjin Medical University General Hospital, Tianjin, China
| | - Wen Huang
- Department of Urology, Tianjin Medical University General Hospital, Tianjin, China
| | - Yanlei Li
- Department of Pathology, Tianjin Medical University, Tianjin, China
| | - Rongxin Zhang
- Department of Radiotherapy, Tianjin Medical University General Hospital, Tianjin, China
| | - Long Yang
- Department of Urology, Tianjin Medical University General Hospital, Tianjin, China
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10
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Zhao J, Wu F, Yang J. A novel long non-coding RNA TTN-AS1/microRNA-589-5p/FOXP1 positive feedback loop increases the proliferation, migration and invasion of pancreatic cancer cell lines. Oncol Lett 2021; 22:794. [PMID: 34584569 PMCID: PMC8461757 DOI: 10.3892/ol.2021.13055] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Accepted: 07/12/2021] [Indexed: 12/19/2022] Open
Abstract
Numerous reports have found that long non-coding (lnc) RNAs were associated with pancreatic cancer (PC) initiation and development. The lncRNA titin antisense RNA 1 (TTN-AS1) was identified as a tumor promoter in certain types of cancer; however, its role and mechanism in PC remain unclear. The aim of the present study was to investigate the role of TTN-AS1 in PC and elucidate the underlying mechanism. Reverse transcription-quantitative PCR analysis was performed to examine the mRNA expression level of TTN-AS1, microRNA(miR)-589-5p and forkhead box protein 1 (FOXP1). Knockdown experiments were performed to examine the effect of TTN-AS1 on PC cell proliferation, migration and invasion. Luciferase reporter assays validated the binding of miR-589-5p to TTN-AS1 and FOXP1. Chromatin immunoprecipitation and luciferase reporter assays confirmed the binding ability of FOXP1 to the TTN-AS1 promoter. As a result, TTN-AS1 and FOXP1 were found to be upregulated in PC cell lines and tissues, while miR-589-5p was expressed at low levels. Knockdown experiments indicated the suppressive effect of TTN-AS1 knockdown on cell proliferation, migration and invasion in PC cell lines. Further mechanistic research uncovered that TTN-AS1 functioned as a molecular sponge for miR-589-5p and its mRNA expression level in PC tissues was inversely associated with that of miR-589-5p. Furthermore, miR-589-5p was confirmed to target FOXP1. Of note, it was discovered that FOXP1 transcriptionally activated TTN-AS1 mRNA expression level. Taken together, the findings of the present study demonstrated that the new TTN-AS1/miR-589-5p/FOXP1 feedback loop may play an important role in PC.
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Affiliation(s)
- Jing Zhao
- Department of Gastroenterology, Liyang People's Hospital, Liyang, Jiangsu 213300, P.R. China
| | - Fang Wu
- Department of Gastroenterology, Wuxi People's Hospital, Wuxi, Jiangsu 214023, P.R. China
| | - Jun Yang
- Department of Gastroenterology, Liyang People's Hospital, Liyang, Jiangsu 213300, P.R. China
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Han G, Guo Q, Ma N, Bi W, Xu M, Jia J, Wang W. LncRNA BCRT1 facilitates osteosarcoma progression via regulating miR-1303/FGF7 axis. Aging (Albany NY) 2021; 13:15501-15510. [PMID: 34102610 PMCID: PMC8221344 DOI: 10.18632/aging.203106] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2020] [Accepted: 12/19/2020] [Indexed: 12/16/2022]
Abstract
Growing studies noted that lncRNA was closely related with the initiation and progression of tumors. However, the role of BCRT1 in the progression of osteosarcoma remains unknown. We noted that BCRT1 is significantly upregulated in osteosarcoma specimens and cells. Elevated expression of BCRT1 promotes cell growth and cell cycle in osteosarcoma cell. Moreover, BCRT1 induces EMT and secretion of inflammatory mediators in osteosarcoma cell. We illustrated that elevated expression of BCRT1 decreases miR-1303 expression in MG-63 cell. The expression of miR-1303 is lower in osteosarcoma specimens than in non-tumor specimens. There is an inverse interrelation between miR-1303 levels and BCRT1 levels in osteosarcoma specimens. Furthermore, we identified FGF7 is one direct target gene of miR-1303 in osteosarcoma cell. Ectopic expression of miR-1303 suppresses FGF7 expression and elevated expression of BCRT1 enhanced FGF7 expression in MG-63 cell. Finally, we illustrated that BCRT1 induces osteosarcoma cell cycle and proliferation and promotes EMT progression and inflammatory mediators secretion via modulating FGF7 expression. Our study suggested that BCRT1 acts as one oncogene in osteosarcoma progression.
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Affiliation(s)
- Gang Han
- Department of Orthopedics, The First Medical Center of General Hospital of PLA, Beijing 100853, China
| | - Quanyi Guo
- Department of Orthopedics, The First Medical Center of General Hospital of PLA, Beijing 100853, China
| | - Ning Ma
- Department of Orthopedics, The First Medical Center of General Hospital of PLA, Beijing 100853, China
| | - Wenzhi Bi
- Department of Orthopedics, The First Medical Center of General Hospital of PLA, Beijing 100853, China
| | - Meng Xu
- Department of Orthopedics, The First Medical Center of General Hospital of PLA, Beijing 100853, China
| | - Jinpeng Jia
- Department of Orthopedics, The First Medical Center of General Hospital of PLA, Beijing 100853, China
| | - Wei Wang
- Department of Orthopedics, The First Medical Center of General Hospital of PLA, Beijing 100853, China
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Lin Z, Li Y, Shao R, Hu Y, Gao H. LncRNA TTN-AS1 acts as a tumor promoter in gallbladder carcinoma by regulating miR-107/HMGA1 axis. World J Surg Oncol 2021; 19:163. [PMID: 34090483 PMCID: PMC8180155 DOI: 10.1186/s12957-021-02279-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Accepted: 05/28/2021] [Indexed: 12/13/2022] Open
Abstract
Background The incidence of gallbladder carcinoma (GBM) in China has increased in recent years. Here, the functional mechanism of lncRNA TTN-AS1 in GBC was preliminary elucidated. Methods The expression levels of lncRNA TTN-AS1, miR-107, and HMGA1 in tissues and cell lines were assessed by RT-qPCR. Cell proliferation was measured by MTT assays. Cell invasion and migration abilities were evaluated by Transwell assays. The relationship between miR-107 and lncRNA TTN-AS1 or HMGA1 was confirmed by luciferase reporter assay. Results Upregulation of lncRNA TTN-AS1 and downregulation of miR-107 were detected in GBC. Furthermore, the expressions between TTN-AS1 and miR-107 were mutually inhibited in GBC. Functionally, lncRNA TTN-AS1 promoted cell viability and motility in GBC by sponging miR-107. In addition, miR-107 directly targets HMGA1. And HMGA1 can be positively regulated by lncRNA TTN-AS1 in GBC. Furthermore, HMGA1 promoted GBC progression by interacting with lncRNA TTN-AS1/miR-107 axis. Conclusion LncRNA TTN-AS1 acted as a tumor promoter in GBC by sponging miR-107 and upregulating HMGA1.
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Affiliation(s)
- Zhaoxia Lin
- Department of Clinical Laboratory, Jinan Central Hospital, Cheeloo College of Medicine, Shandong University, Shandong Province, Jinan, 250013, China
| | - Yaosheng Li
- Imaging Department, The People's Hospital of Zhangqiu Area, Shandong Province, Jinan, 250200, China
| | - Rongfeng Shao
- Department of Hepatobiliary Vascular Surgery, Qingdao Central Hospital, Qingdao University, Shandong Province, Qingdao, 266000, China
| | - Yuqing Hu
- Department of Endocrinology, The People's Hospital of Zhangqiu Area, Shandong Province, Jinan, 250200, China
| | - Han Gao
- Department of Pathology, Qingdao Municipal Hospital, No. 5 Donghai Middle Road, Shandong Province, Qingdao, 266071, China.
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Meng X, Zhang Z, Chen L, Wang X, Zhang Q, Liu S. Silencing of the Long Non-Coding RNA TTN-AS1 Attenuates the Malignant Progression of Osteosarcoma Cells by Regulating the miR-16-1-3p/TFAP4 Axis. Front Oncol 2021; 11:652835. [PMID: 34141611 PMCID: PMC8204018 DOI: 10.3389/fonc.2021.652835] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Accepted: 05/14/2021] [Indexed: 11/27/2022] Open
Abstract
Objectives Osteosarcoma (OS) is a type of bone malignancy. This study attempted to explore the effect of long non-coding RNA TTN-AS1 (TTN-AS1) on OS and to determine its molecular mechanisms. Methods The expression of TTN-AS1, microRNA-16-1-3p (miR-16-1-3p), and transcription factor activating enhancer binding protein 4 (TFAP4) in OS was assessed using qRT-PCR. The OS cell proliferation, migration, and invasion were measured using 3-(4,5-Dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT), wound-healing, and transwell assays. N-cadherin and MMP-2 protein level was determined with western blot. Interactions between TTN-AS1 and miR-16-1-3p or TFAP4 and miR-16-1-3p were confirmed using the dual-luciferase reporter assay. Additionally, an OS xenograft tumor model was constructed to assess the effect of TTN-AS1 on tumor growth. Results TTN-AS1 and TFAP4 expression was increased in OS, while miR-16-1-3p expression was decreased. TTN-AS1 silencing restrained OS cell proliferation, migration, invasion, N-cadherin and MMP-2 protein expression, and hindered tumor growth. MiR-16-1-3p overexpression retarded the malignant behavior of OS cells. TTN-AS1 played a carcinostatic role by down-regulating miR-16-1-3p in the OS cells. Moreover, miR-16-1-3p inhibition or TFAP4 elevation weakened the suppressive effect of TTN-AS1 silencing on OS cell tumor progression. Conclusion TTN-AS1 promoted the proliferation, migration, invasion, and epithelial-mesenchymal transition (EMT) of OS cells via mediating the miR-16-1-3p/TFAP4 axis. TTN-AS1 may be a critical target for improving OS.
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Affiliation(s)
- Xianghai Meng
- Trauma Center, Jinan Central Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Zhenjun Zhang
- Trauma Center, Jinan Central Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Lin Chen
- Department of Burn Reconstructive Surgery, Jinan Central Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Xi Wang
- Department of Spine Surgery, Jinan Central Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Qingguo Zhang
- Department of Spine Surgery, Jinan Central Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Shuheng Liu
- Department of Spine Surgery, Jinan Central Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
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Gu C, Yang J, Luo Y, Ran D, Tan X, Xiang P, Fei H, Lu Y, Guo W, Tu Y, Liu X, Wang H. ZNRF2 attenuates focal cerebral ischemia/reperfusion injury in rats by inhibiting mTORC1-mediated autophagy. Exp Neurol 2021; 342:113759. [PMID: 33992580 DOI: 10.1016/j.expneurol.2021.113759] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Revised: 04/25/2021] [Accepted: 05/10/2021] [Indexed: 02/06/2023]
Abstract
Zinc and ring finger 2 (ZNRF2), an E3 ubiquitin ligase, plays a crucial role in many diseases. However, its role in cerebral ischemia/reperfusion injury (CIRI) still remains unknown. In this study, the function and molecular mechanism of ZNRF2 in CIRI in vivo and vitro was studied. ZNRF2 was found to be dramatically downregulated in CIRI. Overexpression of ZNRF2 could significantly reduce the neurological deficit, brain infarct volume and histopathological damage of cortex in middle cerebral artery occlusion/reperfusion. Concomitantly, overexpression of ZNRF2 increased the primary neuronal viability and decreased the neuronal apoptosis induced by oxygen-glucose deprivation and reoxygenation (OGD/R). Mechanistically, overexpression of ZNRF2 inhibited the over-induction of autophagy induced by OGD/R which was abolished by mTORC1 inhibitor rapamycin. It can be concluded that ZNRF2 plays a protective effect in CIRI and the underlying mechanism may be related to the inhibition of mTORC1-mediated autophagy.
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Affiliation(s)
- Chao Gu
- Key Laboratory of Biochemistry and Molecular Pharmacology, Department of Pharmacology, Chongqing Medical University, Chongqing 400016, China
| | - Junqing Yang
- Key Laboratory of Biochemistry and Molecular Pharmacology, Department of Pharmacology, Chongqing Medical University, Chongqing 400016, China
| | - Ying Luo
- Key Laboratory of Biochemistry and Molecular Pharmacology, Department of Pharmacology, Chongqing Medical University, Chongqing 400016, China
| | - Dongzhi Ran
- Key Laboratory of Biochemistry and Molecular Pharmacology, Department of Pharmacology, Chongqing Medical University, Chongqing 400016, China
| | - Xiaodan Tan
- Key Laboratory of Biochemistry and Molecular Pharmacology, Department of Pharmacology, Chongqing Medical University, Chongqing 400016, China
| | - Pu Xiang
- Key Laboratory of Biochemistry and Molecular Pharmacology, Department of Pharmacology, Chongqing Medical University, Chongqing 400016, China; Dianjiang People's Hospital of Chongqing, Dianjiang, Chongqing 408300, China
| | - Huizhi Fei
- Key Laboratory of Biochemistry and Molecular Pharmacology, Department of Pharmacology, Chongqing Medical University, Chongqing 400016, China
| | - Yi Lu
- Key Laboratory of Biochemistry and Molecular Pharmacology, Department of Pharmacology, Chongqing Medical University, Chongqing 400016, China
| | - Wenjia Guo
- Key Laboratory of Biochemistry and Molecular Pharmacology, Department of Pharmacology, Chongqing Medical University, Chongqing 400016, China
| | - Yujun Tu
- Key Laboratory of Biochemistry and Molecular Pharmacology, Department of Pharmacology, Chongqing Medical University, Chongqing 400016, China
| | - Xia Liu
- Key Laboratory of Biochemistry and Molecular Pharmacology, Department of Pharmacology, Chongqing Medical University, Chongqing 400016, China
| | - Hong Wang
- Key Laboratory of Biochemistry and Molecular Pharmacology, Department of Pharmacology, Chongqing Medical University, Chongqing 400016, China.
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Yuan L, Li J, Yang Y, Chen Y, Bu Y, Ye M, Mao X, Ma T, Yu L, Nan Y. LINC00514 promotes gastric cancer cell growth and EMT progression via miR-204-3p/KRAS. Aging (Albany NY) 2021; 13:12007-12015. [PMID: 33888645 PMCID: PMC8109083 DOI: 10.18632/aging.202905] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Accepted: 01/22/2021] [Indexed: 12/20/2022]
Abstract
Long noncoding RNAs (LncRNAs) participate in tumor development and tumorigenesis. However, the mechanism, function and expression of LINC00514 in GC remain unknown. We showed that LINC00514 was upregulated in GC specimens compared with nontumor specimens. Overexpression of LINC00514 induced cell growth and EMT progression in GC cells. By using bioinformatics prediction, we found that miR-204-3p contained binding sequences for LINC00514. Luciferase reporter analysis noted that miR-204-3p overexpression decreased the luciferase expression under LINC00514-wild-type and KRAS-wild-type reporters but not that under mutant reporter. Ectopic LINC00514 expression decreased miR-204-3p expression. miR-204-3p expression was decreased in GC specimens compared with nontumor specimens and that LINC00514 was negatively correlated with miR-204-3p in GC specimens. Furthermore, KRAS was identified as a target gene for miR-204-3p according to TargetScan. Elevated miR-204-3p expression inhibited KRAS expression in HGC-27 cells, and ectopic expression of LINC00514 enhanced KRAS expression. Elevated LINC00514 expression enhanced cell growth and EMT progression by sponging KRAS. Our data indicated that LINC00514 may act as an oncogene and therapeutic target for GC.
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Affiliation(s)
- Ling Yuan
- Pharmacy College of Ningxia Medical University, Yinchuan 750004, China.,Ningxia Medical University Key Laboratory of Hui Ethnic Medicine Modernization Ministry of Education, Yinchuan 750004, China
| | - Jiaxin Li
- Pharmacy College of Ningxia Medical University, Yinchuan 750004, China
| | - Yi Yang
- Pharmacy College of Ningxia Medical University, Yinchuan 750004, China
| | - Yan Chen
- Traditional Chinese Medicine College of Ningxia Medical University, Yinchuan 750004, China
| | - Yang Bu
- Hepatobiliary Surgery, General Hospital of Ningxia Medical University, Yinchuan 750004, China
| | - Mengyi Ye
- Traditional Chinese Medicine College of Ningxia Medical University, Yinchuan 750004, China
| | - Xiongjie Mao
- Pharmacy College of Ningxia Medical University, Yinchuan 750004, China
| | - Tingting Ma
- Pharmacy College of Ningxia Medical University, Yinchuan 750004, China
| | - Lei Yu
- Department of Infectious Disease, The Fourth Hospital of Harbin Medical University, Harbin 150001, Heilongjiang, China
| | - Yi Nan
- Ningxia Medical University Key Laboratory of Hui Ethnic Medicine Modernization Ministry of Education, Yinchuan 750004, China
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Li M, Zhang S, Ma Y, Yang Y, An R. Role of hsa‑miR‑105 during the pathogenesis of paclitaxel resistance and its clinical implication in ovarian cancer. Oncol Rep 2021; 45:84. [PMID: 33846814 PMCID: PMC8025119 DOI: 10.3892/or.2021.8035] [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: 08/05/2020] [Accepted: 01/21/2021] [Indexed: 12/17/2022] Open
Abstract
More than 70% of patients with epithelial ovarian cancer (EOC), one of the leading cause of gynecological cancer-related deaths worldwide, are diagnosed at an advanced stage of the disease. Currently, the mainstay for treatment of advanced EOC is tumor debulking surgery followed by combined platinum- and paclitaxel (PTX)-based chemotherapy. However, most patients eventually develop chemoresistance, which remains a major obstacle to successful treatment. Herein, by using clinical specimens and experimentally induced cell models, we found that the expression levels of hsa-miR-105 were significantly decreased in PTX-resistant EOC tissues and cell lines. Follow-up functional experiments demonstrated that repression of hsa-miR-105 conferred resistance to paclitaxel in EOC cells, whereas restoration of hsa-miR-105 expression in situ via intratumoral injection of hsa-miR-105 micrON™ agomir potentiated in vivo sensitivity to PTX and thereafter significantly inhibited tumor growth in a PTX-challenged xenograft model. Mechanistically, hsa-miR-105 exerted its tumor suppressor function by directly inhibiting the zinc and ring finger 2 (ZNRF2) signaling pathway. Importantly, aberrant expression of hsa-miR-105 in both tumor and circulating samples predicted a poor post-chemotherapy prognosis in EOC patients. These findings collectively suggest that hsa-miR-105 may act as a potent tumor suppressor miRNA during the progression of EOC, likely affecting cell proliferation, invasiveness and chemosensitivity to PTX, and functioning at least in part via inhibition of ZNRF2 signaling. The stability and availability and ease in measurement of circulating hsa-miR-105 make it a valuable diagnostic/prognostic biomarker candidate for chemotherapy of EOC.
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Affiliation(s)
- Mao Li
- Department of Obstetrics and Gynecology, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China
| | - Shun Zhang
- Department of Obstetrics and Gynecology, Reproductive Medicine Center, Tangdu Hospital, Air Force Military Medical University, Xi'an, Shaanxi 710038, P.R. China
| | - Yuan Ma
- Department of Obstetrics and Gynecology, Reproductive Medicine Center, Tangdu Hospital, Air Force Military Medical University, Xi'an, Shaanxi 710038, P.R. China
| | - Yang Yang
- Department of Obstetrics and Gynecology, First Affiliated Hospital of Xi'an Medical University, Xi'an, Shaanxi 710082, P.R. China
| | - Ruifang An
- Department of Obstetrics and Gynecology, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China
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Liu Y, Li L, Wu X, Qi H, Gao Y, Li Y, Chen D. MSC-AS1 induced cell growth and inflammatory mediators secretion through sponging miR-142-5p/DDX5 in gastric carcinoma. Aging (Albany NY) 2021; 13:10387-10395. [PMID: 33819916 PMCID: PMC8064188 DOI: 10.18632/aging.202800] [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: 10/20/2020] [Accepted: 12/10/2020] [Indexed: 12/18/2022]
Abstract
Emerging studies have noted that dysregulated lncRNAs are implicated in cancer progression and tumorigenesis. We first showed that MSC-AS1 was overexpressed in gastric cancer (GC) cells (HGC-27, MKN-45, SGC-7901 and MGC-803 cells) compared with GES cells. We observed that MSC-AS1 was upregulated in GC specimens compared with paired normal specimens. MSC-AS1 increased cell growth and cycle progression. Moreover, the overexpression of MSC-AS1 enhanced the secretion of the inflammatory mediators IL-1β, IL-6 and TNF-α. We found that the overexpression of MSC-AS1 inhibited the expression of miR-142-5p in HGC-27 cells. We noted that DDK5 was a target gene of miR-142-5p. The overexpression of miR-142-5p suppressed the luciferase activity of wild-type DDX5, but the luciferase activity of the mutant DDX5 was not changed. We showed that miR-142-5p was downregulated in GC specimens compared with paired normal specimens. MSC-AS1 expression was inversely correlated with miR-142-5p expression in GC specimens. MSC-AS1 induced cell growth, cell cycle progression and inflammatory mediator secretion by modulating DDX5. These results showed that MSC-AS1 functions as a key oncogene in the development of GC.
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Affiliation(s)
- Yan Liu
- Department of Oncology, The Fourth Hospital of China Medical University, Liaoning, Shengyang 110032, China
| | - Lin Li
- Department of Oncology, The Fourth Hospital of China Medical University, Liaoning, Shengyang 110032, China
| | - Xiaoxu Wu
- Department of Oncology, The Fourth Hospital of China Medical University, Liaoning, Shengyang 110032, China
| | - Haiyan Qi
- Department of Oncology, The Fourth Hospital of China Medical University, Liaoning, Shengyang 110032, China
| | - Yan Gao
- Department of Oncology, The Fourth Hospital of China Medical University, Liaoning, Shengyang 110032, China
| | - Yanqi Li
- Department of Oncology, The Fourth Hospital of China Medical University, Liaoning, Shengyang 110032, China
| | - Da Chen
- Department of General Practice, The Fourth Hospital of China Medical University, Liaoning, Shengyang 110032, China
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18
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Epigenetic regulation of papillary thyroid carcinoma by long non-coding RNAs. Semin Cancer Biol 2021; 83:253-260. [PMID: 33785446 DOI: 10.1016/j.semcancer.2021.03.027] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2020] [Revised: 03/24/2021] [Accepted: 03/25/2021] [Indexed: 02/08/2023]
Abstract
Thyroid cancer is the most common primary endocrine malignancy with papillary thyroid carcinoma (PTC) its most common subtype. The jump in diagnoses over last many years has prompted re-assessment of molecularly targeted therapies and the discovery of novel targets. Long non-coding RNAs (lncRNAs) are increasingly being assessed for their expression in various PTC models. Interestingly, in addition to cell line models, a large proportion of the reported studies have evaluated lncRNA levels in PTC patient samples providing an immediate clinical relevance of their findings. While most lncRNAs either promote or suppress PTC pathogenesis, data on individual lncRNAs is not very clear. As expected, lncRNAs function in PTC through sponging of microRNAs as well as modulation of several signaling pathways. The process of epithelial-mesenchymal transition and the PI3K/Akt and wnt signaling pathways have emerged as the primary targets of lncRNAs in PTC. This comprehensive review discusses all the information that is available on lncRNAs in PTC, ranging from in vitro and in vivo findings to the possible role of lncRNAs as diagnostic and/or prognostic biomarkers.
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Zhao M, Wang W, Lu Y, Wang N, Kong D, Shan L. MicroRNA‑153 attenuates hypoxia‑induced excessive proliferation and migration of pulmonary arterial smooth muscle cells by targeting ROCK1 and NFATc3. Mol Med Rep 2021; 23:194. [PMID: 33495839 PMCID: PMC7809904 DOI: 10.3892/mmr.2021.11833] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Accepted: 12/01/2020] [Indexed: 12/20/2022] Open
Abstract
The aim of the present study was to explore the effect of microRNA (miR)‑153 on the proliferation and migration of pulmonary artery smooth muscle cells (PASMCs) in a hypoxic condition by targeting ρ‑associated, coiled‑coil‑containing protein kinase 1 (ROCK1) and nuclear factor of activated T cells cytoplasmic 3 (NFATc3). The right ventricular systolic pressure, right ventricular hypertrophy index, medial wall thickness and medial wall area were studied at different time‑points after rats were exposed to hypoxia. Western blot analysis was used to detect ROCK1 and NFATc3 protein levels. In addition, reverse transcription‑quantitative (RT‑q) PCR was performed to confirm the mRNA levels of miR‑153, ROCK1 and NFATc3 in human (H)PASMCs under hypoxic conditions. Transfected cells were then used to evaluate the effect of miR‑153 on cell proliferation and migration abilities. The association between miR‑153 and ROCK1 or NFATc3 was identified through double luciferase assays. Hypoxia induced pulmonary vascular remodeling and pulmonary arterial hypertension, which resulted from the abnormal proliferation of HPASMCs. ROCK1 and NFATc3 were the target genes of miR‑153 and miR‑153 mimic inhibited the protein expressions of ROCK1 and NFATc3 in HPASMCs and further inhibited cell proliferation and migration under hypoxic conditions. By contrast, the miR‑153 inhibitor promoted the proliferation and migration of HPASMCs. miR‑153 regulated the proliferation and migration of HPASMCs under hypoxia by targeting ROCK1 and NFATc3.
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Affiliation(s)
- Minjie Zhao
- Department of Respiratory Disease, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, Liaoning 121001, P.R. China
| | - Wei Wang
- Department of Respiratory Disease, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning 110000, P.R. China
| | - Ya Lu
- Department of Respiratory Disease, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, Liaoning 121001, P.R. China
| | - Nan Wang
- Department of Respiratory Disease, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, Liaoning 121001, P.R. China
| | - Delei Kong
- Department of Respiratory Disease, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning 110000, P.R. China
| | - Lina Shan
- Department of Respiratory Disease, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, Liaoning 121001, P.R. China
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Zheng QX, Wang J, Gu XY, Huang CH, Chen C, Hong M, Chen Z. TTN-AS1 as a potential diagnostic and prognostic biomarker for multiple cancers. Biomed Pharmacother 2021; 135:111169. [PMID: 33433359 DOI: 10.1016/j.biopha.2020.111169] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Revised: 12/01/2020] [Accepted: 12/14/2020] [Indexed: 02/07/2023] Open
Abstract
The long noncoding RNAs (lncRNAs) are non-coding RNAs that are more than 200 nucleotides in length, and one of several types of non-coding RNAs (ncRNAs). The lncRNAs function in diverse biological processes in normal cells, such as cellular differentiation and cell cycle regulation. There is also evidence that some aberrantly regulated lncRNAs function as oncogenes or tumor suppressor genes in various cancers. For example, TTN-AS1 is a lncRNA that binds to titin mRNA (TTN) and has pro-oncogenic effects in many cancers. Overexpression of TTN-AS1 correlates with poor prognosis in breast cancer, lung cancer, digestive system neoplasms, reproductive system cancers, and other cancers. Furthermore, increased TTN-AS1 expression correlates with more advanced pathology and tumor malignancy. In this review, we comprehensively summarize recent studies on the molecular mechanisms of TTN-AS1 regulation and the role of TTN-AS1 in the carcinogenesis and progression of numerous tumors.
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Affiliation(s)
- Qiu-Xian Zheng
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou 310003, China
| | - Jing Wang
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou 310003, China
| | - Xin-Yu Gu
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou 310003, China
| | - Chun-Hong Huang
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou 310003, China
| | - Chao Chen
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou 310003, China
| | - Meng Hong
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou 310003, China
| | - Zhi Chen
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou 310003, China.
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21
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Deng X, Guo B, Fan Y. MiR-153-3p Suppresses Cell Proliferation, Invasion and Glycolysis of Thyroid Cancer Through Inhibiting E3F3 Expression. Onco Targets Ther 2021; 14:519-529. [PMID: 33500627 PMCID: PMC7824972 DOI: 10.2147/ott.s267887] [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: 06/15/2020] [Accepted: 11/11/2020] [Indexed: 12/11/2022] Open
Abstract
PURPOSE The aim was to research the role of miR-153-3p and E2F3 in the development of thyroid tumors. METHODS A total of 91 thyroid cancer patients were involved. The role of miR-153-3p in THCA cell lines and Nthy-ori3-1 cell line was researched. qPCR was used to detect miR-153-3p and E2F3 expression. MiR-153-3p mimic, inhibitor, siE2F3 or corresponding controls were transfected in cells. CCK8 was used to verify the proliferation. Cell cycle and apoptosis was detected by flow cytometry. Transwell assay was applied for migration and invasion, and glycolysis was monitored. The binding of miR-153-3p and E2F3 was predicted by targetscan database, and verified by luciferase reporter and RNA-pull down assay. Western blot was used to detect E2F3 expression. Rescue assay was undertaken to verify the effect of siE2F3 on miR-153-3p inhibitor. Moreover, the effect of miR-153-3p mimic on tumor volume and weight was measured. IHC assay was processed to E2F3 and Ki67 expression, and TUNEL assay was used for apoptosis. RESULTS MiR-153-3p expressed lower in thyroid tumors and cells. The level of miR-153-3p was negatively related with TNM stage. MiR-153-3p inhibited cell proliferation, invasion migration, and induced cycle arrest and apoptosis. Moreover, it negatively regulated E2F3. siE2F3 rescued effects of miR-153-3p inhibitor in all above biological processes in thyroid cancer cells. MiR-153-3p inhibited tumor growth. Moreover, it inhibited E2F3 and Ki67 expression, and also increased apoptosis in vivo. CONCLUSION MiR-153-3p suppresses cell proliferation, invasion and glycolysis of thyroid cancer through inhibiting E3F3 expression, which may be a biomarker for thyroid cancer diagnose.
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Affiliation(s)
- Xianzhao Deng
- Department of General Surgery, Shanghai Jiao Tong University Affiliated Sixth People’s Hospital, Shanghai200233, People’s Republic of China
| | - Bomin Guo
- Department of General Surgery, Shanghai Jiao Tong University Affiliated Sixth People’s Hospital, Shanghai200233, People’s Republic of China
| | - Youben Fan
- Department of General Surgery, Shanghai Jiao Tong University Affiliated Sixth People’s Hospital, Shanghai200233, People’s Republic of China
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Zhou Y, Huang Y, Dai T, Hua Z, Xu J, Lin Y, Han L, Yue X, Ho L, Lu J, Ai X. LncRNA TTN-AS1 intensifies sorafenib resistance in hepatocellular carcinoma by sponging miR-16-5p and upregulation of cyclin E1. Biomed Pharmacother 2021; 133:111030. [PMID: 33378944 DOI: 10.1016/j.biopha.2020.111030] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Revised: 11/10/2020] [Accepted: 11/15/2020] [Indexed: 02/07/2023] Open
Abstract
Drug resistance has always been an important problem affecting the therapeutic effect of hepatocellular carcinoma (HCC). To investigate the potential role of lncRNA TTN-AS1 in HCC cells with sorafenib (SOR) resistance, and explore the underlying pathways, quantitative real time polymerase chain reaction (qRT-PCR) was used to test the expression of TTN-AS1 in HCC tissues and cells. Then, the expression of TTN-AS1 was down-regulated by shRNA, the activity changes, apoptosis and related protein expression in HCC cells with/without SOR treatment were observed in succession. Expression levels of the downstream target of TTN-AS1, miR-16-5p were studied by dual-luciferase binding assay, cell proliferation, and western blotting analysis. Nude mice models of human HCC with TTN-AS1 gene knockdown were established to observe the tumor growth. As the results revealed, TTN-AS1 silencing in HCC cells induced apoptosis by enhancing the sensitivity of cells to SOR, and the tumor in nude mice became smaller. The mechanism study showed that miR-16-5p was affected by TTN-AS1 sponge, up-regulated cyclin E1 expression, and regulated PTEN/Akt signaling pathway, thereby significantly alleviating the inhibition of apoptosis of HCC cells induced by TTN-AS1 gene. Collectively, our results provided TTN-AS1 as a potential therapeutic target for sorafenib resistance in HCC.
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MESH Headings
- Animals
- Antineoplastic Agents/pharmacology
- Apoptosis/drug effects
- Carcinoma, Hepatocellular/drug therapy
- Carcinoma, Hepatocellular/genetics
- Carcinoma, Hepatocellular/metabolism
- Carcinoma, Hepatocellular/pathology
- Cell Proliferation/drug effects
- Cyclin E/genetics
- Cyclin E/metabolism
- Drug Resistance, Neoplasm/genetics
- Gene Expression Regulation, Neoplastic
- Hep G2 Cells
- Humans
- Liver Neoplasms/drug therapy
- Liver Neoplasms/genetics
- Liver Neoplasms/metabolism
- Liver Neoplasms/pathology
- Male
- Mice, Inbred BALB C
- Mice, Nude
- MicroRNAs/genetics
- MicroRNAs/metabolism
- Oncogene Proteins/genetics
- Oncogene Proteins/metabolism
- Protein Kinase Inhibitors/pharmacology
- RNA, Long Noncoding/genetics
- RNA, Long Noncoding/metabolism
- Signal Transduction
- Sorafenib/pharmacology
- Tumor Burden/drug effects
- Up-Regulation
- Xenograft Model Antitumor Assays
- Mice
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Affiliation(s)
- Yongping Zhou
- Wuxi Second Hospital, Nanjing Medical University, Department of Hepatobiliary Surgery, Wuxi, Jiangsu Province, 214002, PR China
| | - Yonggang Huang
- Kunshan Hospital of Traditional Chinese Medicine, Department of Hepatobiliary Surgery, Kunshan, Jiangsu Province, 215300, PR China
| | - Tu Dai
- Wuxi Second Hospital, Nanjing Medical University, Department of Hepatobiliary Surgery, Wuxi, Jiangsu Province, 214002, PR China
| | - Zhiyuan Hua
- Wuxi Second Hospital, Nanjing Medical University, Department of Hepatobiliary Surgery, Wuxi, Jiangsu Province, 214002, PR China
| | - Jian Xu
- Department of General Surgery, BenQ Medical Center, The Affiliated BenQ Hospital of Nanjing Medical University, Nanjing, Jiangsu Province, 210019, PR China
| | - Yuting Lin
- Department of General Surgery, BenQ Medical Center, The Affiliated BenQ Hospital of Nanjing Medical University, Nanjing, Jiangsu Province, 210019, PR China
| | - Lulu Han
- Department of General Surgery, BenQ Medical Center, The Affiliated BenQ Hospital of Nanjing Medical University, Nanjing, Jiangsu Province, 210019, PR China
| | - Xiong Yue
- Department of General Surgery, BenQ Medical Center, The Affiliated BenQ Hospital of Nanjing Medical University, Nanjing, Jiangsu Province, 210019, PR China
| | - Lichen Ho
- Department of General Surgery, BenQ Medical Center, The Affiliated BenQ Hospital of Nanjing Medical University, Nanjing, Jiangsu Province, 210019, PR China
| | - Jinjing Lu
- Department of General Surgery, BenQ Medical Center, The Affiliated BenQ Hospital of Nanjing Medical University, Nanjing, Jiangsu Province, 210019, PR China
| | - Xiaoming Ai
- Department of General Surgery, BenQ Medical Center, The Affiliated BenQ Hospital of Nanjing Medical University, Nanjing, Jiangsu Province, 210019, PR China.
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Fang J, Huang C, Ke J, Li J, Zhang W, Xue H, Chen J. lncRNA TTN-AS1 facilitates proliferation, invasion, and epithelial-mesenchymal transition of breast cancer cells by regulating miR-139-5p/ZEB1 axis. J Cell Biochem 2020; 121:4772-4784. [PMID: 32100921 DOI: 10.1002/jcb.29700] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Accepted: 02/10/2020] [Indexed: 12/22/2022]
Abstract
Breast cancer is a common malignant tumor suffered predominantly by women worldwide, which results in serious levels of morbidity and mortality. To control the effects of the cancer, it is critically important to elucidate the pathophysiological processes by which it occurs and develops. Reports have demonstrated that long noncoding RNAs perform a critical role in the development and metastasis of cancers. The lncRNA TTN-AS1 is considered carcinogenic. Nevertheless, the importance and biological functions of TTN-AS1 in breast cancer require greater exploration. In the current paper, we observed that TTN-AS1 expression was significantly upregulated in breast cancer tissues/cells compared with those that are healthy. TTN-AS1 enhanced the proliferation, migration, invasion, and epithelial-mesenchymal transformation of breast cancer cells. Furthermore, a direct target of TTN-AS1, miR-139-5p was negatively regulated. In addition, zinc finger E-box binding homeobox 1 (ZEB1) is an important nuclear transcription factor, the expression of which is increased in multiple tumors. Here, we also found that ZEB1 is a target of miR-139-5p, of which TTN-AS1 could regulate the expression through competition with miR-139-5p. That is, TTN-AS1 promoted proliferation and invasion of breast cancer cells by interaction with the miR-139-5p/ZEB1 axis. In conclusion, the present study aimed to illustrate the significance of TTN-AS1 in breast cancer metastasis and contribute to potentially innovative strategies for its treatment.
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Affiliation(s)
- Jun Fang
- Department of General Surgery, Affiliated Hospital of Nantong University, Nantong, Jiangsu, China
| | - Chen Huang
- Department of General Surgery, Affiliated Hospital of Nantong University, Nantong, Jiangsu, China
| | - Jing Ke
- Department of General Surgery, Affiliated Hospital of Nantong University, Nantong, Jiangsu, China
| | - Jia Li
- Department of General Surgery, Affiliated Hospital of Nantong University, Nantong, Jiangsu, China
| | - Wei Zhang
- Department of General Surgery, Affiliated Hospital of Nantong University, Nantong, Jiangsu, China
| | - Huimin Xue
- Department of General Surgery, Affiliated Hospital of Nantong University, Nantong, Jiangsu, China
| | - Jinpeng Chen
- Department of General Surgery, Affiliated Hospital of Nantong University, Nantong, Jiangsu, China
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24
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Sun E, Liu X, Lu C, Liu K. Long non‑coding RNA TTN‑AS1 regulates the proliferation, invasion and migration of triple‑negative breast cancer by targeting miR‑211‑5p. Mol Med Rep 2020; 23:45. [PMID: 33179096 PMCID: PMC7684865 DOI: 10.3892/mmr.2020.11683] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2019] [Accepted: 07/06/2020] [Indexed: 12/17/2022] Open
Abstract
Increasing evidence has demonstrated that long non-coding RNAs (lncRNAs) serve important roles in numerous malignancies, including triple-negative breast cancer (TNBC). The lncRNA titin-antisense RNA1 (TTN-AS1) has previously been reported to promote tumorigenesis in various types of cancer. The present study aimed to investigate the potential role of TTN-AS1 in breast cancer and the associated underlying mechanisms. Following prediction by Starbase and confirmation by dual-luciferase reporter assay, TINCR was demonstrated to be a target gene for microRNA (miR)-211-5p. The expression levels of TTN-AS1 and miR-211-5p, which was predicted to be targeted by TTN-AS1, in TNBC tissues and in the breast cancer cell lines MDA-MB-453 and MDA-MB-231 were measured using reverse transcription-quantitative PCR. Following TTN-AS1-knockdown, cell proliferation was measured using a Cell Counting Kit-8 assay and colony formation assay, whereas cell invasion and migration were measured using Transwell and wound healing assays, respectively. Luciferase reporter assay was performed to verify the potential interaction between TTN-AS1 and miR-211-5p. In addition, rescue assays were conducted to investigate the effects of TTN-AS1 and miR-211-5p on TNBC development. The results demonstrated that TTN-AS1 expression was significantly upregulated, whereas that of miR-211-5p was found to be downregulated in TNBC tissues and cell lines compared with the matched adjacent normal tissues and normal breast epithelial cell line MCF-10A, respectively. Furthermore, TTN-AS1-knockdown inhibited the proliferation and invasive and migratory abilities of MDA-MB-453 and MDA-MB-231 cells, which was reversed following co-transfection with the miR-211-5p inhibitor. The results from luciferase reporter assay confirmed that miR-211-5p was a direct target of TTN-AS1, suggesting that TTN-AS1 may bind directly to miR-211-5p to negatively regulate its expression. In conclusion, the findings from the present study demonstrated that TTN-AS1 regulated the proliferation and invasive and migratory abilities of TNBC by targeting miR-211-5p. This study may provide some insights into the regulatory mechanism of TNBC and help the development of novel therapeutic interventions for TNBC.
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Affiliation(s)
- Erhu Sun
- Department of Breast, Women's Hospital of Nanjing Medical University, Nanjing Maternity and Child Health Care Hospital, Nanjing, Jiangsu 210000, P.R. China
| | - Xiaofeng Liu
- Department of Breast, Women's Hospital of Nanjing Medical University, Nanjing Maternity and Child Health Care Hospital, Nanjing, Jiangsu 210000, P.R. China
| | - Cheng Lu
- Department of Breast, Women's Hospital of Nanjing Medical University, Nanjing Maternity and Child Health Care Hospital, Nanjing, Jiangsu 210000, P.R. China
| | - Kangsheng Liu
- Department of Clinical Laboratory, Women's Hospital of Nanjing Medical University, Nanjing Maternity and Child Health Care Hospital, Nanjing, Jiangsu 210000, P.R. China
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25
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MicroRNA in Papillary Thyroid Carcinoma: A Systematic Review from 2018 to June 2020. Cancers (Basel) 2020; 12:cancers12113118. [PMID: 33113852 PMCID: PMC7694051 DOI: 10.3390/cancers12113118] [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: 09/09/2020] [Revised: 10/19/2020] [Accepted: 10/21/2020] [Indexed: 02/06/2023] Open
Abstract
Simple Summary The most common form of endocrine cancer - papillary thyroid carcinoma, has an increasing incidence. Although this disease usually has an indolent behavior, there are cases when it can evolve more aggressively. It has been known for some time that it is possible to use microRNAs for the diagnosis, prognosis and even treatment monitoring of papillary thyroid cancer. The purpose of this study is to summarize the latest information provided by publications regarding the involvement of microRNAs in papillary thyroid cancer, underling the new clinical perspectives offered by these publications. Abstract The involvement of micro-ribonucleic acid (microRNAs) in metabolic pathways such as regulation, signal transduction, cell maintenance, and differentiation make them possible biomarkers and therapeutic targets. The purpose of this review is to summarize the information published in the last two and a half years about the involvement of microRNAs in papillary thyroid carcinoma (PTC). Another goal is to understand the perspective offered by the new findings. Main microRNA features such as origin, regulation, targeted genes, and metabolic pathways will be presented in this paper. We interrogated the PubMed database using several keywords: “microRNA” + “thyroid” + “papillary” + “carcinoma”. After applying search filters and inclusion criteria, a selection of 137 articles published between January 2018–June 2020 was made. Data regarding microRNA, metabolic pathways, gene/protein, and study utility were selected and included in the table and later discussed regarding the matter at hand. We found that most microRNAs regularly expressed in the normal thyroid gland are downregulated in PTC, indicating an important tumor-suppressor action by those microRNAs. Moreover, we showed that one gene can be targeted by several microRNAs and have nominally described these interactions. We have revealed which microRNAs can target several genes at once.
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26
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Wang X, Zhou L, Zhang H, Ou H, Long W, Liu X. Upregulation of cervical carcinoma expressed PCNA regulatory long non-coding RNA promotes esophageal squamous cell carcinoma progression. Oncol Lett 2020; 20:142. [PMID: 32934710 PMCID: PMC7471740 DOI: 10.3892/ol.2020.12006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2019] [Accepted: 07/28/2020] [Indexed: 12/03/2022] Open
Abstract
Cervical carcinoma expressed PCNA regulatory long non-coding (lnc)RNA (CCEPR) has recently been reported to play oncogenic roles in some common types of human cancer. However, the clinical significance of CCEPR mRNA expression levels in esophageal squamous cell carcinoma (ESCC) and the exact function of CCEPR in regulating the malignant phenotypes of ESCC cells have not been previously investigated. In the present study, CCEPR mRNA expression level was upregulated in ESCC tissues and cell lines, and overexpression of CCEPR was associated with advanced TNM stage, lymph node metastasis, and poor prognosis in ESCC. In vitro experiments showed that silencing CCEPR mRNA expression levels significantly suppressed the proliferation, migration, and invasion of ESCC cells, while inducing ESCC cell apoptosis. Furthermore, inhibition of CCEPR decreased the protein expression levels of matrix metalloproteinase (MMP)2 and MMP9 and inhibited epithelial-mesenchymal transition in ESCC cells. In conclusion, the results showed that CCEPR plays an oncogenic role in ESCC and suggests that CCEPR could be used as a potential therapeutic target for ESCC treatment.
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Affiliation(s)
- Xiaojun Wang
- Department of Oncology, First People's Hospital of Chenzhou City, Chenzhou, Hunan 423000, P.R. China
| | - Liangfen Zhou
- Department of Neonatology, First People's Hospital of Chenzhou City, Chenzhou, Hunan 423000, P.R. China
| | - Huiyun Zhang
- Department of Oncology, First People's Hospital of Chenzhou City, Chenzhou, Hunan 423000, P.R. China
| | - Hui Ou
- Department of Oncology, First People's Hospital of Chenzhou City, Chenzhou, Hunan 423000, P.R. China
| | - Wenxing Long
- Department of Invasive Technology, Affiliated Hospital of Xiangnan College, Chenzhou, Hunan 423000, P.R. China
| | - Xiaobao Liu
- Department of Oncology, Second People's Hospital of Chenzhou City, Chenzhou, Hunan 423000, P.R. China
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27
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Zhu H, Zhai B, He C, Li Z, Gao H, Niu Z, Jiang X, Lu J, Sun X. LncRNA TTN-AS1 promotes the progression of cholangiocarcinoma via the miR-320a/neuropilin-1 axis. Cell Death Dis 2020; 11:637. [PMID: 32801339 PMCID: PMC7429853 DOI: 10.1038/s41419-020-02896-x] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2020] [Revised: 08/01/2020] [Accepted: 08/05/2020] [Indexed: 02/07/2023]
Abstract
Neuropilin-1 regulated by miR-320a participates in the progression of cholangiocarcinoma by serving as a co-receptor that activates multiple signaling pathways. The present study sought to investigate upstream lncRNAs that control the expression of miR-320a/neuropilin-1 axis and dissect some of the underlying mechanisms. Here we report lncRNA TTN-AS1 (titin-antisense RNA1) acts as a sponging ceRNA to downregulate miR-320a and is highly expressed in human cholangiocarcinoma tissues and cells. The expression of the above three molecules is correlated with the clinicopathologic parameters of cholangiocarcinoma patients. In this study, multiple bioinformatics tools and databases were employed to seek potential lncRNAs that have binding sites with miR-320a and TTN-AS1 was identified because it exhibited the largest folds of alteration between cholangiocarcinoma and normal bile duct epithelial cells. The regulatory role of TTN-AS1 on miR-320a was further evaluated by luciferase reporter and RNA pulldown assays, coupled with in situ hybridization and RNA immunoprecipitation analyses, which showed that TTN-AS1 bound to miR-320a through an argonaute2-dependent RNA interference pathway in the cytoplasm of cholangiocarcinoma cells. Knockdown and overexpression assays showed that the regulatory effect between TTN-AS1 and miR-320 was in a one-way manner. TTN-AS1 promoted the proliferation and migration of cholangiocarcinoma cells via the miR-320a/ neuropilin-1 axis. The function of TTN-AS1 on tumor growth and its interaction with miR-320a were confirmed in animal models. Further mechanistic studies revealed that TTA-AS1, through downregulating miR-320a, promoted cell cycle progression, epithelial–mesenchymal transition, and tumor angiogenesis by upregulating neuropilin-1, which co-interacted with the hepatocyte growth factor/c-Met and transforming growth factor (TGF)-β/TGF-β receptor I pathways. In conclusion, the present results demonstrate that lncRNA TTA-AS1 is a sponging ceRNA for miR-320a, which in turn downregulates neuropilin-1 in cholangiocarcinoma cells, indicating these three molecules represent potential biomarkers and therapeutic targets in the management of cholangiocarcinoma.
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Affiliation(s)
- Huaqiang Zhu
- Department of Hepatobiliary Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, 250021, Jinan, China
| | - Bo Zhai
- The Hepatosplenic Surgery Center, the First Affiliated Hospital of Harbin Medical University, 150001, Harbin, China.,Department of General Surgery, the Fourth Affiliated Hospital of Harbin Medical University, 150001, Harbin, China
| | - Changjun He
- Department of Surgery, the Third Affiliated Hospital of Harbin Medical University, 150081, Harbin, China
| | - Ziyi Li
- The Hepatosplenic Surgery Center, the First Affiliated Hospital of Harbin Medical University, 150001, Harbin, China
| | - Hengjun Gao
- Department of Hepatobiliary Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, 250021, Jinan, China
| | - Zheyu Niu
- Department of Hepatobiliary Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, 250021, Jinan, China
| | - Xian Jiang
- The Hepatosplenic Surgery Center, the First Affiliated Hospital of Harbin Medical University, 150001, Harbin, China
| | - Jun Lu
- Department of Hepatobiliary Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, 250021, Jinan, China.
| | - Xueying Sun
- The Hepatosplenic Surgery Center, the First Affiliated Hospital of Harbin Medical University, 150001, Harbin, China.
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28
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Chen J, Liu X, Ke K, Zou J, Gao Z, Habuchi T, Yang X. LINC00992 contributes to the oncogenic phenotypes in prostate cancer via targeting miR-3935 and augmenting GOLM1 expression. BMC Cancer 2020; 20:749. [PMID: 32781986 PMCID: PMC7418399 DOI: 10.1186/s12885-020-07141-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2019] [Accepted: 07/06/2020] [Indexed: 02/07/2023] Open
Abstract
Background Accumulating evidence has revealed the critical role of long non-coding RNAs (lncRNAs) in cellular processes during tumor progression. As documented in cancer-related literatures, LINC00992 expression is associated with cancer progression, whereas its function in tumors including prostate cancer has not been characterized yet. Methods Data from GEPIA database suggested LINC00992 expression in prostate cancer tissues. The expression levels of RNAs were monitored via qRT-PCR. Western blot evaluated the levels of proteins. The proliferation, apoptosis and migration of prostate cancer cells were assessed by CCK-8, EdU, TUNEL, Transwell and wound healing assays. Luciferase reporter, RNA pull down and RIP assays were applied to detect the interplays among LINC00992, miR-3935 and GOLM1. Results Elevated levels of LINC00992 and GOLM1 were detected in prostate cancer tissues and cells. LINC00992 exerted facilitating functions in prostate cancer cell proliferation and migration. Mechanically, LINC00992 interacted with and negatively regulated miR-3935 to elevate GOLM1 expression in prostate cancer cells. In addition, the in vitro suppressive effect of silenced LINC00992 on prostate cancer cell proliferation and migration was reversed by GOLM1 upregulation. Likewise, LINC00992 depletion restrained tumor growth in vivo was offset by enhanced GOLM1 expression. Conclusions LINC00992 competitively bound with miR-3935 to elevate GOLM1 expression and therefore facilitate the oncogenic phenotypes of prostate cancer cells, implying a potential LINC00992-targeted therapy for prostate cancer.
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Affiliation(s)
- Jianheng Chen
- Department of Urology, the First Affiliated Hospital of Kunming Medical University, Kunming, 650032, Yunnan, China
| | - Xiaodong Liu
- Department of Urology, the First Affiliated Hospital of Kunming Medical University, Kunming, 650032, Yunnan, China
| | - Kunbin Ke
- Department of Urology, the First Affiliated Hospital of Kunming Medical University, Kunming, 650032, Yunnan, China
| | - Jianan Zou
- Department of Urology, the First Affiliated Hospital of Anhui University of Chinese Medicine, Hefei, 230031, Anhui, China
| | - Zhan Gao
- Department of Urology, Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, 100091, China
| | - Tomonori Habuchi
- Department of Urology, Akita University School of Medicine, Akita, 010-8543, Japan
| | - Xuezhen Yang
- Department of Urology, the Second Affiliated Hospital of Bengbu Medical College, 220 Hongye Road, Bengbu, 233000, Anhui, China.
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29
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Chen J, Liu X, Ke K, Zou J, Gao Z, Habuchi T, Yang X. LINC00992 contributes to the oncogenic phenotypes in prostate cancer via targeting miR-3935 and augmenting GOLM1 expression. BMC Cancer 2020. [PMID: 32781986 DOI: 10.1186/s12885-020-07141-4;(corresponding] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Accumulating evidence has revealed the critical role of long non-coding RNAs (lncRNAs) in cellular processes during tumor progression. As documented in cancer-related literatures, LINC00992 expression is associated with cancer progression, whereas its function in tumors including prostate cancer has not been characterized yet. METHODS Data from GEPIA database suggested LINC00992 expression in prostate cancer tissues. The expression levels of RNAs were monitored via qRT-PCR. Western blot evaluated the levels of proteins. The proliferation, apoptosis and migration of prostate cancer cells were assessed by CCK-8, EdU, TUNEL, Transwell and wound healing assays. Luciferase reporter, RNA pull down and RIP assays were applied to detect the interplays among LINC00992, miR-3935 and GOLM1. RESULTS Elevated levels of LINC00992 and GOLM1 were detected in prostate cancer tissues and cells. LINC00992 exerted facilitating functions in prostate cancer cell proliferation and migration. Mechanically, LINC00992 interacted with and negatively regulated miR-3935 to elevate GOLM1 expression in prostate cancer cells. In addition, the in vitro suppressive effect of silenced LINC00992 on prostate cancer cell proliferation and migration was reversed by GOLM1 upregulation. Likewise, LINC00992 depletion restrained tumor growth in vivo was offset by enhanced GOLM1 expression. CONCLUSIONS LINC00992 competitively bound with miR-3935 to elevate GOLM1 expression and therefore facilitate the oncogenic phenotypes of prostate cancer cells, implying a potential LINC00992-targeted therapy for prostate cancer.
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Affiliation(s)
- Jianheng Chen
- Department of Urology, the First Affiliated Hospital of Kunming Medical University, Kunming, 650032, Yunnan, China
| | - Xiaodong Liu
- Department of Urology, the First Affiliated Hospital of Kunming Medical University, Kunming, 650032, Yunnan, China
| | - Kunbin Ke
- Department of Urology, the First Affiliated Hospital of Kunming Medical University, Kunming, 650032, Yunnan, China
| | - Jianan Zou
- Department of Urology, the First Affiliated Hospital of Anhui University of Chinese Medicine, Hefei, 230031, Anhui, China
| | - Zhan Gao
- Department of Urology, Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, 100091, China
| | - Tomonori Habuchi
- Department of Urology, Akita University School of Medicine, Akita, 010-8543, Japan
| | - Xuezhen Yang
- Department of Urology, the Second Affiliated Hospital of Bengbu Medical College, 220 Hongye Road, Bengbu, 233000, Anhui, China.
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30
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Role of RING-Type E3 Ubiquitin Ligases in Inflammatory Signalling and Inflammatory Bowel Disease. Mediators Inflamm 2020; 2020:5310180. [PMID: 32848509 PMCID: PMC7436281 DOI: 10.1155/2020/5310180] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2020] [Accepted: 07/22/2020] [Indexed: 01/05/2023] Open
Abstract
Ubiquitination is a three-step enzymatic cascade for posttranslational protein modification. It includes the ubiquitin-activating enzyme (E1), ubiquitin-conjugating enzyme (E2), and ubiquitin ligase (E3). RING-type E3 ubiquitin ligases catalyse the posttranslational proteolytic and nonproteolytic functions in various physiological and pathological processes, such as inflammation-associated signal transduction. Resulting from the diversity of substrates and functional mechanisms, RING-type ligases regulate microbe recognition and inflammation by being involved in multiple inflammatory signalling pathways. These processes also occur in autoimmune diseases, especially inflammatory bowel disease (IBD). To understand the importance of RING-type ligases in inflammation, we have discussed their functional mechanisms in multiple inflammation-associated pathways and correlation between RING-type ligases and IBD. Owing to the limited data on the biology of RING-type ligases, there is an urgent need to analyse their potential as biomarkers and therapeutic targets in IBD in the future.
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31
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Shen L, Wu Y, Li A, Li L, Shen L, Jiang Q, Li Q, Wu Z, Yu L, Zhang X. LncRNA TTN‑AS1 promotes endometrial cancer by sponging miR‑376a‑3p. Oncol Rep 2020; 44:1343-1354. [PMID: 32945477 PMCID: PMC7448418 DOI: 10.3892/or.2020.7691] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2020] [Accepted: 04/29/2020] [Indexed: 12/11/2022] Open
Abstract
Increasing research has demonstrated that lncRNAs participate in the development of multiple cancer types. However, the role of TTN-AS1 in endometrial cancer (EC) remains unknown. The present study aimed to explore the function of titin-antisense RNA1 (TTN-AS1) in EC progression and the underlying mechanisms. qRT-PCR was performed to assess the TTN-AS1 expression patterns in EC tissues and cell lines. Loss of function experiments were carried out to estimate the effects of TTN-AS1 on EC cell proliferation, migration and invasion. To reveal the underlying mechanisms, informatics tools were used to predict the targets. Rescue experiments were performed to investigate the TTN-AS1-regulated miR-376a-3p/pumilio homolog 2 (PUM2) axis involved. The results of the present study revealed that TTN-AS1 was highly expressed in both EC tissues and cell lines, and TTN-AS1 knockdown inhibited EC cell proliferation, migration and invasion. With respect to the mechanisms, miR-376a-3p was revealed to be targeted by TTN-AS1, and reversed the effects on EC development induced by TTN-AS1. In addition, PUM2 was positively regulated by TTN-AS1, and miR-376a-3p mediated the regulation between them. Furtherly, in vivo experiments confirmed the results. Collectively, TTN-AS1 enhanced EC cell proliferation and metastasis by targeting the miR-376a-3p/PUM2 axis, which may shed light on EC diagnosis and treatment.
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Affiliation(s)
- Longde Shen
- Department of Gynecology and Obstetrics, Quanzhou First Hospital Affiliated to Fujian Medical University, Quanzhou, Fujian 362000, P.R. China
| | - Yinyin Wu
- Department of Gynecology and Obstetrics, Jinjiang Traditional Chinese Medicine Hospital, Jinjiang, Fujian 362200, P.R. China
| | - Ailu Li
- Department of Gynecology and Obstetrics, Quanzhou First Hospital Affiliated to Fujian Medical University, Quanzhou, Fujian 362000, P.R. China
| | - Lichun Li
- Department of Gynecology and Obstetrics, Quanzhou First Hospital Affiliated to Fujian Medical University, Quanzhou, Fujian 362000, P.R. China
| | - Longyuan Shen
- Department of Anesthesiology, Quanzhou Women's and Children's Hospital, Quanzhou, Fujian 362000, P.R. China
| | - Qiuxia Jiang
- Department of Ultrasound, Quanzhou Women's and Children's Hospital, Quanzhou, Fujian 362000, P.R. China
| | - Qiuxia Li
- Department of Gynecology and Obstetrics, Quanzhou Guangqian Hospital, Quanzhou, Fujian 362000, P.R. China
| | - Zhifen Wu
- Department of Gynecology and Obstetrics, Quanzhou First Hospital Affiliated to Fujian Medical University, Quanzhou, Fujian 362000, P.R. China
| | - Liji Yu
- Department of Gynecology and Obstetrics, Quanzhou First Hospital Affiliated to Fujian Medical University, Quanzhou, Fujian 362000, P.R. China
| | - Xiaohong Zhang
- Department of Gynecology and Obstetrics, Quanzhou First Hospital Affiliated to Fujian Medical University, Quanzhou, Fujian 362000, P.R. China
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Chang K, Wang G, Lou J, Hao S, Lv R, Duan D, Zhang W, Guo Y, Wang P. lncRNA TTN‑AS1 upregulates RUNX1 to enhance glioma progression via sponging miR‑27b‑3p. Oncol Rep 2020; 44:1064-1074. [PMID: 32705233 PMCID: PMC7388303 DOI: 10.3892/or.2020.7684] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2019] [Accepted: 04/13/2020] [Indexed: 12/14/2022] Open
Abstract
Long non-coding RNAs (lncRNAs) contribute to the tumorigeneses of numerous types of cancer, including glioma. The present study was designed to unveil a novel lncRNA functioning in glioma and explore the underlying mechanisms. lncRNA titin-antisense RNA1 (TTN-AS1), miR-27b-3p and Runt-related transcription factor 1 (RUNX1) expression in glioma tissues and cell lines was estimated by RT-qPCR. Si-TTN-AS1 was transfected into glioma cell lines (U251 and LN229), and CCK-8 assay, flow cytometry, wound healing and Transwell assays were applied to estimate the function of TTN-AS1 in glioma cells. miR-27b-3p inhibitor was used to explore the mechanisms. The results revealed that TTN-AS1 was highly expressed in glioma specimens and cell lines. Downregulation of TTN-AS1 inhibited the proliferation, migration and invasion of the glioma cells, as well as increased the rate of apoptosis. In vivo, the tumor growth was also inhibited by TTN-AS1 depletion in nude mice. Furthermore, we revealed that TTN-AS1 exerted oncogenic effects via sponging miR-27b-3p and thereby positively regulating RUNX1 expression. In conclusion, the present study supported that TTN-AS1 acts as an oncogene in glioma by targeting miR-27b-3p to release RUNX1. This finding may contribute to gene therapy of glioma.
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Affiliation(s)
- Keliang Chang
- Department of Neurosurgery, The Second Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450014, P.R. China
| | - Genwei Wang
- Department of Neurosurgery, The Second Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450014, P.R. China
| | - Jinfeng Lou
- Department of Neurosurgery, The Second Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450014, P.R. China
| | - Sha Hao
- Department of Oncology, The Traditional Chinese Medicine Hospital of Jingmen, Jingmen, Hubei 448000, P.R. China
| | - Ranbo Lv
- Department of Neurosurgery, Longhai Hospital of Kaifeng City, Kaifeng, Henan 475000, P.R. China
| | - Desheng Duan
- Department of Orthopaedics, The Third People's Hospital of Anyang, Anyang, Henan 455000, P.R. China
| | - Wanhong Zhang
- Department of Neurosurgery, Kaifeng Central Hospital, Kaifeng, Henan 475000, P.R. China
| | - Yingchang Guo
- Department of Intervention Therapy, The First Affiliated Hospital of Xinxiang Medical University, Weihui, Henan 453100, P.R. China
| | - Pengfei Wang
- Department of Neurosurgery, The People's Hospital of Pingyu, Pingyu, Henan 463400, P.R. China
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Qi G, Li L. LncRNA TTN-AS1 Promotes Progression of Non-Small Cell Lung Cancer via Regulating miR-491-5p/ZNF503 Axis. Onco Targets Ther 2020; 13:6361-6371. [PMID: 32669856 PMCID: PMC7335898 DOI: 10.2147/ott.s238890] [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: 11/16/2019] [Accepted: 03/19/2020] [Indexed: 12/13/2022] Open
Abstract
Background Non-small cell lung cancer (NSCLC) is the most common type of lung cancer with high mortality worldwide. Long non-coding RNA (lncRNA) TTN antisense RNA1 (TTN-AS1) has been demonstrated to play a crucial role in a variety of cancers. This study was designed to investigate the function and molecular mechanism of lncRNA TTN-AS1 in NSCLC. Methods The expression levels of TTN-AS1, miR-491-5p and zinc finger protein 503 (ZNF503) were examined by quantitative real-time polymerase chain reaction (qRT-PCR) or Western blot assay, respectively. Cell viability was detected by 3-(4,5-dimethyl-2-thiazolyl)-2,5-diphenyl-2-H-tetrazolium bromide (MTT) assay. Cell migration and invasion were assessed by transwell assay. Epithelial-to-mesenchymal transition (EMT)-related proteins were measured using Western blot assay. The relationship between TTN-AS1, miR-491-5p and ZNF503 was predicted by starBase2.0 and confirmed by dual-luciferase reporter assay. Xenograft tumor experiment was conducted to analyze the tumor growth in vivo. Results The levels of TTN-AS1 and ZNF503 were up-regulated, while miR-491-5p expression was reduced in NSCLC tissues and cells. Knockdown of TTN-AS1 or ZNF503 suppressed cell proliferation, migration, invasion and EMT in NSCLC cells. Overexpression of ZNF503 reversed the effect of TTN-AS1 silencing on NSCLC progression. TTN-AS1 could modulate the expression of ZNF503 via sponging miR-491-5p. Furthermore, TTN-AS1 induced tumor growth in vivo. Conclusion Inhibition of TTN-AS1 hindered cell proliferation, migration, invasion and EMT in NSCLC cells by modulating miR-491-5p/ZNF503 axis, providing a promising biomarker for NSCLC treatment.
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Affiliation(s)
- Guanbin Qi
- Department of Respiratory and Critical Care Medicine, Huaihe Hospital, Henan University, Kaifeng, Henan 475000, People's Republic of China
| | - Lei Li
- Department of Respiratory and Critical Care Medicine, Huaihe Hospital, Henan University, Kaifeng, Henan 475000, People's Republic of China
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Gi WT, Haas J, Sedaghat-Hamedani F, Kayvanpour E, Tappu R, Lehmann DH, Shirvani Samani O, Wisdom M, Keller A, Katus HA, Meder B. Epigenetic Regulation of Alternative mRNA Splicing in Dilated Cardiomyopathy. J Clin Med 2020; 9:jcm9051499. [PMID: 32429430 PMCID: PMC7291244 DOI: 10.3390/jcm9051499] [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: 03/10/2020] [Revised: 05/04/2020] [Accepted: 05/12/2020] [Indexed: 12/19/2022] Open
Abstract
In recent years, the genetic architecture of dilated cardiomyopathy (DCM) has been more thoroughly elucidated. However, there is still insufficient knowledge on the modifiers and regulatory principles that lead to the failure of myocardial function. The current study investigates the association of epigenome-wide DNA methylation and alternative splicing, both of which are important regulatory principles in DCM. We analyzed screening and replication cohorts of cases and controls and identified distinct transcriptomic patterns in the myocardium that differ significantly, and we identified a strong association of intronic DNA methylation and flanking exons usage (p < 2 × 10-16). By combining differential exon usage (DEU) and differential methylation regions (DMR), we found a significant change of regulation in important sarcomeric and other DCM-associated pathways. Interestingly, inverse regulation of Titin antisense non-coding RNA transcript splicing and DNA methylation of a locus reciprocal to TTN substantiate these findings and indicate an additional role for non-protein-coding transcripts. In summary, this study highlights for the first time the close interrelationship between genetic imprinting by DNA methylation and the transport of this epigenetic information towards the dynamic mRNA splicing landscape. This expands our knowledge of the genome-environment interaction in DCM besides simple gene expression regulation.
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Affiliation(s)
- Weng-Tein Gi
- Institute for Cardiomyopathies Heidelberg (ICH), Heart Center Heidelberg, University of Heidelberg, 69121 Heidelberg, Germany; (W.-T.G.); (J.H.); (F.S.-H.); (E.K.); (R.T.); (D.H.L.); (O.S.S.); (M.W.); (H.A.K.)
- DZHK (German Center for Cardiovascular Research), 69121 Heidelberg, Germany
- Department of Medicine III, University of Heidelberg, INF 410, 69120 Heidelberg, Germany
| | - Jan Haas
- Institute for Cardiomyopathies Heidelberg (ICH), Heart Center Heidelberg, University of Heidelberg, 69121 Heidelberg, Germany; (W.-T.G.); (J.H.); (F.S.-H.); (E.K.); (R.T.); (D.H.L.); (O.S.S.); (M.W.); (H.A.K.)
- DZHK (German Center for Cardiovascular Research), 69121 Heidelberg, Germany
- Department of Medicine III, University of Heidelberg, INF 410, 69120 Heidelberg, Germany
| | - Farbod Sedaghat-Hamedani
- Institute for Cardiomyopathies Heidelberg (ICH), Heart Center Heidelberg, University of Heidelberg, 69121 Heidelberg, Germany; (W.-T.G.); (J.H.); (F.S.-H.); (E.K.); (R.T.); (D.H.L.); (O.S.S.); (M.W.); (H.A.K.)
- DZHK (German Center for Cardiovascular Research), 69121 Heidelberg, Germany
- Department of Medicine III, University of Heidelberg, INF 410, 69120 Heidelberg, Germany
| | - Elham Kayvanpour
- Institute for Cardiomyopathies Heidelberg (ICH), Heart Center Heidelberg, University of Heidelberg, 69121 Heidelberg, Germany; (W.-T.G.); (J.H.); (F.S.-H.); (E.K.); (R.T.); (D.H.L.); (O.S.S.); (M.W.); (H.A.K.)
- DZHK (German Center for Cardiovascular Research), 69121 Heidelberg, Germany
- Department of Medicine III, University of Heidelberg, INF 410, 69120 Heidelberg, Germany
| | - Rewati Tappu
- Institute for Cardiomyopathies Heidelberg (ICH), Heart Center Heidelberg, University of Heidelberg, 69121 Heidelberg, Germany; (W.-T.G.); (J.H.); (F.S.-H.); (E.K.); (R.T.); (D.H.L.); (O.S.S.); (M.W.); (H.A.K.)
- DZHK (German Center for Cardiovascular Research), 69121 Heidelberg, Germany
- Department of Medicine III, University of Heidelberg, INF 410, 69120 Heidelberg, Germany
| | - David Hermann Lehmann
- Institute for Cardiomyopathies Heidelberg (ICH), Heart Center Heidelberg, University of Heidelberg, 69121 Heidelberg, Germany; (W.-T.G.); (J.H.); (F.S.-H.); (E.K.); (R.T.); (D.H.L.); (O.S.S.); (M.W.); (H.A.K.)
- Department of Medicine III, University of Heidelberg, INF 410, 69120 Heidelberg, Germany
| | - Omid Shirvani Samani
- Institute for Cardiomyopathies Heidelberg (ICH), Heart Center Heidelberg, University of Heidelberg, 69121 Heidelberg, Germany; (W.-T.G.); (J.H.); (F.S.-H.); (E.K.); (R.T.); (D.H.L.); (O.S.S.); (M.W.); (H.A.K.)
- DZHK (German Center for Cardiovascular Research), 69121 Heidelberg, Germany
- Department of Medicine III, University of Heidelberg, INF 410, 69120 Heidelberg, Germany
| | - Michael Wisdom
- Institute for Cardiomyopathies Heidelberg (ICH), Heart Center Heidelberg, University of Heidelberg, 69121 Heidelberg, Germany; (W.-T.G.); (J.H.); (F.S.-H.); (E.K.); (R.T.); (D.H.L.); (O.S.S.); (M.W.); (H.A.K.)
- DZHK (German Center for Cardiovascular Research), 69121 Heidelberg, Germany
- Department of Medicine III, University of Heidelberg, INF 410, 69120 Heidelberg, Germany
| | - Andreas Keller
- Department of Clinical Bioinformatics, Medical Faculty, Saarland University, 66123 Saarbrücken, Germany;
| | - Hugo A. Katus
- Institute for Cardiomyopathies Heidelberg (ICH), Heart Center Heidelberg, University of Heidelberg, 69121 Heidelberg, Germany; (W.-T.G.); (J.H.); (F.S.-H.); (E.K.); (R.T.); (D.H.L.); (O.S.S.); (M.W.); (H.A.K.)
- DZHK (German Center for Cardiovascular Research), 69121 Heidelberg, Germany
- Department of Medicine III, University of Heidelberg, INF 410, 69120 Heidelberg, Germany
| | - Benjamin Meder
- Institute for Cardiomyopathies Heidelberg (ICH), Heart Center Heidelberg, University of Heidelberg, 69121 Heidelberg, Germany; (W.-T.G.); (J.H.); (F.S.-H.); (E.K.); (R.T.); (D.H.L.); (O.S.S.); (M.W.); (H.A.K.)
- DZHK (German Center for Cardiovascular Research), 69121 Heidelberg, Germany
- Department of Medicine III, University of Heidelberg, INF 410, 69120 Heidelberg, Germany
- Department of Genetics, Stanford University School of Medicine, Stanford, CA 94305, USA
- Correspondence:
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MicroRNA-153-3p enhances the sensitivity of chronic myeloid leukemia cells to imatinib by inhibiting B-cell lymphoma-2-mediated autophagy. Hum Cell 2020; 33:610-618. [PMID: 32342278 DOI: 10.1007/s13577-020-00367-1] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2020] [Accepted: 04/21/2020] [Indexed: 12/19/2022]
Abstract
Chronic myeloid leukemia (CML) is a hematopoietic stem cell disease caused by abnormal DNA replication of bone marrow stem cells and chemotherapy resistance is a major obstacle to the effective treatment of patients with CML. Imatinib (IM), a tyrosine kinase inhibitor (TKI), is a first-line drug clinically used for CML. Mounting evidence has indicated that the dysregulation of microRNAs (miRNAs) is associated with the chemoresistance of CML. In this study, miR-153-3p, which had been implicated with numerous types of tumors, was identified to be downregulated in IM-resistant CML cells. Upregulation of miR-153-3p significantly increased IM sensitivity and decreased the survival rate of IM-resistant CML cells, whereas downregulation of miR-153-3p attenuated these effects in IM-resistant CML cells. Upregulated miR-153-3p could decrease the autophagy caused by IM in IM-resistant CML cells. Dual-luciferase reporter assays confirmed that Bcl-2 is a direct target of miR-153-3p. Bcl-2 restoration reversed the increased sensitivity to IM induced by miR-153-3p-mimic transfection in IM-resistant CML cells. The results of the present study showed that dysregulated miR-153-3p may target Bcl-2 to promote the development of IM resistance and attenuate IM-induced apoptosis in CML. Therefore, miR-153-3p upregulation combined with IM treatment may serve as a promising therapeutic strategy for patients with low sensitivity.
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Song Y, Gao F, Peng Y, Yang X. Long non-coding RNA DBH-AS1 promotes cancer progression in diffuse large B-cell lymphoma by targeting FN1 via RNA-binding protein BUD13. Cell Biol Int 2020; 44:1331-1340. [PMID: 32091157 DOI: 10.1002/cbin.11327] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2019] [Accepted: 02/02/2020] [Indexed: 12/12/2022]
Abstract
Diffuse large B-cell lymphoma (DLBC) is a subtype of lymphoma with the worst prognosis. Existing treatment methods are not effective enough due to its high occurrence of metastasis. Therefore, identification of effective therapeutic targets is becoming increasingly important. In this research, long non-coding RNA dopamine β hydroxylase antisense RNA 1 (DBH-AS1) was found to be upregulated in DLBC tissues and cells. Knockdown of DBH-AS1 suppressed the proliferation, migration, and invasion of cancer cells. Afterwards, RNA-binding protein BUD13 homolog (BUD13) was found to be upregulated in cancer tissues and cells while binding to DBH-AS1. Fibronectin 1 (FN1) was the downstream messenger RNA (mRNA) of BUD13. FN1 was upregulated in DLBC and was positively correlated with DBH-AS1. Further rescue assays proved that DBH-AS1 mediated FN1 expression by recruiting BUD13. In the meantime, BUD13 stabilized FN1 mRNA to promote FN1 expression. In this way, DBH-AS1/BUD13/FN1 axis was confirmed. A set of rescue assays proved that DBH-AS1 regulated DLBC progression via BUD13 and FN1. The function and mechanism of DBH-AS1 were investigated for the first time in DLBC. DBH-AS1 might become a therapeutic target in lymphoma treatment in the future.
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Affiliation(s)
- Yanping Song
- Department of Oncology, The First Hospital of Jilin University, No. 71 Xinmin Street, Chaoyang District, Changchun, 130000, Jilin, China
| | - Feng Gao
- Hematology of Cancer Center, The First Hospital of Jilin University, No. 71 Xinmin Street, Chaoyang District, Changchun, 130000, Jilin, China
| | - Yi Peng
- Department of Hematology, The First Hospital of Jilin University, No. 71 Xinmin Street, Chaoyang District, Changchun, 130021, Jilin, China
| | - Xuejie Yang
- Lymphomammary lnternal Medicine, Inner Mongolia BAOTOU Cancer Hospital, No. 18 Tuanjie Street, Qingshan District, Baotou, 014030, Inner Mongolia, China
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Ghafouri-Fard S, Esmaeili M, Shoorei H, Taheri M. A comprehensive review of the role of long non-coding RNAs in organs with an endocrine function. Biomed Pharmacother 2020; 125:110027. [PMID: 32106365 DOI: 10.1016/j.biopha.2020.110027] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2020] [Revised: 02/09/2020] [Accepted: 02/17/2020] [Indexed: 12/12/2022] Open
Abstract
Long non-coding RNAs (lncRNAs) are transcripts with sizes larger than 200 nucleotides and no/ small open reading frame that cannot produce functional proteins. The number of these transcripts surpasses the number of coding genes. LncRNAs regulate many aspects of cell functions such as proliferation, cell cycle transition and differentiation; so their dysregulation has pervasive effects on cell phenotype. Increasing numbers of these transcripts have been shown to participate in the pathogenesis of cancer. In the current review, we summarize recent findings regarding the role of lncRNAs in tumors originated from organs which have an endocrine function. We mostly focused on adrenal, pancreas and pituitary gland as prototypes of these organs. Moreover, we presented the obtained data of the role of lncRNAs in prostate, ovarian and testicular cancers. Recent data highly supports the role of lncRNAs in the pathogenesis of cancers originated from these organs. Moreover, certain genomic loci within lncRNAs have been shown to be associated with risk of these cancers. Diagnostic and prognostic role of some lncRNAs in these cancers have been evaluated recently. Taken together, lncRNAs are putative biomarkers for cancers originated from organs which have an endocrine function.
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Affiliation(s)
- Soudeh Ghafouri-Fard
- Department of Medical Genetics, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mohammadhosein Esmaeili
- Blood Transfusion Research Center, High Institute for Research and Education in Transfusion Medicine, Tehran, Iran
| | - Hamed Shoorei
- Department of Anatomical Sciences, Faculty of Medicine, Birjand University of Medical Sciences, Birjand, Iran
| | - Mohammad Taheri
- Urogenital Stem Cell Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
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Liu X, Li Y, Wen J, Qi T, Wang Y. Long non-coding RNA TTN-AS1 promotes tumorigenesis of ovarian cancer through modulating the miR-139-5p/ROCK2 axis. Biomed Pharmacother 2020; 125:109882. [PMID: 32006899 DOI: 10.1016/j.biopha.2020.109882] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2019] [Revised: 01/01/2020] [Accepted: 01/02/2020] [Indexed: 02/08/2023] Open
Abstract
Long non-coding RNA (lncRNA) TTN antisense RNA 1 (TTN-AS1) was reported to be crucial modulators in the tumorigenesis of several types of cancers. However, it is unclear whether TTN-AS1 can regulate the progression of ovarian cancer (OC). The present study aimed to explore functional roles and molecular mechanism of TTN-AS1 in OC. Quantitative reverse transcriptase-polymerase chain reaction assay (qRT-PCR) was used to detect the expression of TTN-AS1 in OC tissues and cell lines. The biological function of TTN-AS1 in OC was identified by a series of in vitro and in vivo assays. Bioinformatics analysis and mechanism experiments were used to analyze and identify the molecular mechanism of TTN-AS1 in OC progression. A high level of TTN-AS1 was found in OC tissues and cell lines. High TTN-AS1 was positively associated with advanced FIGO stage, lymph node metastasis, and poorer overall survival of OC patients. Functionally, knockdown of TTN-AS1 inhibited cell proliferation, colony formation, invasion and migration of OC cells in vitro, and suppressed tumor formation in vivo. Mechanistically, TTN-AS1 functioned as a competing endogenous RNA by sponging microRNA-139-5p (miR-139-5p) to elevate Rho-associated coiled-coil containing protein kinase 2 (ROCK2). Downregulation of miR-139-5p or upregulation of ROCK2 partially rescued the inhibitory impact of TTN-AS1 knockdown on OC cells. These results obtained in the present study suggested that TTN-AS1 promoted the progression of OC by regulating the miR-139-5p/ROCK2 axis.
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Affiliation(s)
- Xiaoxia Liu
- Department of Gynecology, The First Hospital of Jilin University, 71#Xinmin Street, Chaoyang District, Changchun, 130021, China
| | - Yiyang Li
- Department of Gynecology, The First Hospital of Jilin University, 71#Xinmin Street, Chaoyang District, Changchun, 130021, China
| | - Jihong Wen
- Department of Gynecology, The First Hospital of Jilin University, 71#Xinmin Street, Chaoyang District, Changchun, 130021, China
| | - Tingting Qi
- Department of Gynecology, The First Hospital of Jilin University, 71#Xinmin Street, Chaoyang District, Changchun, 130021, China
| | - Yanli Wang
- Department of Gynecology, The First Hospital of Jilin University, 71#Xinmin Street, Chaoyang District, Changchun, 130021, China.
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Guo L, Lu J, Gao J, Li M, Wang H, Zhan X. The function of SNHG7/miR-449a/ACSL1 axis in thyroid cancer. J Cell Biochem 2020; 121:4034-4042. [PMID: 31961004 DOI: 10.1002/jcb.29569] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2019] [Accepted: 12/09/2019] [Indexed: 12/12/2022]
Abstract
Thyroid cancer (TC) has been characterized as the most common malignant malady of the endocrine system. Small nucleolar RNA host gene 7 (SNHG7) has been reported to serve as a key regulator in a large number of human cancer types, but its role in TC and the underlying regulatory mechanism have never been evaluated yet. The present study indicated that the expression of SNHG7 was markedly higher in TC cell lines. Knockdown of SNHG7 led to a suppression of TC cell progression and migration. Acyl-CoA synthetase long-chain family member 1 (ACSL1) has also been demonstrated as an oncogene in many cancers. Herein an inhibition of ACSL1 after SNHG7 knockdown was captured. Further, the suppressing effects of SNHG7 knockdown on TC cell processes were counteracted by ACSL1 overexpression. Data from online bioinformatics analysis, RNA immunoprecipitation, and luciferase reporter assays validated the interaction between microRNA-449a (miR-449a) and SNHG7 or ACSL1. It was also verified that SNHG7 sequestered miR-449a and therefore elevated ACSL1 expression levels. To conclude, the current study indicated that SNHG7 promoted proliferation and migration of TC cells by sponging miR-449a and therefore upregulating ACSL1. The present study may provide more explorations about the molecular regulation mechanism of long noncoding RNAs in TC progression.
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Affiliation(s)
- Linchi Guo
- Department of Endocrinology, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China.,General Medicine, Ningxia Hui Autonomous Region People's Hospital, Yinchuan, Ningxia, China
| | - Jixuan Lu
- Department of Endocrinology, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China.,General Medicine, Ningxia Hui Autonomous Region People's Hospital, Yinchuan, Ningxia, China
| | - Jie Gao
- Department of Endocrinology, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China.,General Medicine, Ningxia Hui Autonomous Region People's Hospital, Yinchuan, Ningxia, China
| | - Mingyang Li
- Department of Endocrinology, Affiliated Hospital of Chifeng Medical College, Chifeng, Inner Mongolia, China
| | - Huihui Wang
- Department of Endocrinology, Qiqihar First Hospital, Qiqihar, Heilongjiang, China
| | - Xiaorong Zhan
- Department of Endocrinology, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China
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Cui Z, Han B, Wang X, Li Z, Wang J, Lv Y. Long Non-Coding RNA TTN-AS1 Promotes the Proliferation and Invasion of Colorectal Cancer Cells by Activating miR-497-Mediated PI3K/Akt/mTOR Signaling. Onco Targets Ther 2019; 12:11531-11539. [PMID: 31920341 PMCID: PMC6939175 DOI: 10.2147/ott.s229104] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2019] [Accepted: 12/02/2019] [Indexed: 01/18/2023] Open
Abstract
Introduction Long non-coding RNAs (lncRNAs) have obtained increasing attention due to their regulatory functions in many cancers. This work aimed to investigate the functional roles of lncRNA TTN-AS1 in colorectal cancer (CRC) and to explore the underlying mechanisms. Methods The expression profiles of TTN-AS1 and miR-497 in CRC tissues and cell lines were determined by RT-qPCR analysis. MTT assay, transwell assay, western blot analysis, and xenograft tumors in nude mice were employed to analyze the effects of TTN-AS1 on the proliferation, migration, invasion, EMT, and in vivo tumorigenesis of CRC cells. Bioinformatics analysis and dual-luciferase reporter assay determined the direct binding relation between TTN-AS1 and miR-497 in CRC. Results We observed a significant increase of TTN-AS1 expression level in CRC tissues and cell lines compared with normal counterparts. High expression of TTN-AS1 predicted a poor prognosis and was correlated with aggressive clinicopathological characteristics in CRC patients. Functionally, gain- and loss-of-function studies indicated that TTN-AS1 knockdown suppressed the proliferation, migration, invasion and epithelial–mesenchymal transition of CRC cells in vitro, whereas TTN-AS1 overexpression showed the complete opposite effects. Mechanistically, we found that TTN-AS1 could directly interact with miR-497, and co-transfection with miR-497 mimics blocked the activation of PI3K/Akt/mTOR signaling, and reversed the effects of TTN-AS1 overexpression in CRC cells. Conclusion To conclude, our findings provide novel insight into CRC tumorigenesis and indicate that TTN-AS1 may serve as a potential therapeutic target for CRC treatment.
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Affiliation(s)
- Zhenhua Cui
- Department of Colorectal & Anal Surgery, The Second Hospital of Shandong University, Jinan 250033, People's Republic of China
| | - Bingbing Han
- Microcirculation Laboratory, Shandong University of Traditional Chinese Medicine, Jinan, 250014, People's Republic of China
| | - Xianren Wang
- Department of Colorectal & Anal Surgery, The Second Hospital of Shandong University, Jinan 250033, People's Republic of China
| | - Zhiwen Li
- Department of Colorectal & Anal Surgery, The Second Hospital of Shandong University, Jinan 250033, People's Republic of China
| | - Jianxin Wang
- Department of Colorectal & Anal Surgery, The Second Hospital of Shandong University, Jinan 250033, People's Republic of China
| | - Yanfeng Lv
- Department of Colorectal & Anal Surgery, The Second Hospital of Shandong University, Jinan 250033, People's Republic of China
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Wang Y, Jiang F, Xiong Y, Cheng X, Qiu Z, Song R. LncRNA TTN-AS1 sponges miR-376a-3p to promote colorectal cancer progression via upregulating KLF15. Life Sci 2019; 244:116936. [PMID: 31610194 DOI: 10.1016/j.lfs.2019.116936] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2019] [Revised: 10/03/2019] [Accepted: 10/03/2019] [Indexed: 01/05/2023]
Abstract
AIMS Long non-coding RNAs (lncRNAs) play key roles in regulating multiple cancers. TTN-AS1 was reported to function in several human malignancies. However, the biological function of TTN-AS1 in colorectal cancer (CRC) has not been explored. In this study, we aimed to investigate the role and the underlying mechanisms of TTN-AS1 in CRC progression. MAIN METHODS RT-qPCR was used to detect the expression levels of TTN-AS1, miR-376a-3p and KLF15 in colorectal cancer tissues and cells. CCK-8, colony formation, flow cytometry and transwell assays were performed to determine the cell proliferation, apoptotic rate and invasion ability. Target genes were predicted using bioinformatics methods. si-RNA and miRNA inhibitor were transfected into CRC cells to explore the underlying mechanisms. Tumor xenografts were created to confirm the function of TTN-AS-1 in vivo. KEY FINDINGS TTN-AS1 upregulation was observed both in CRC tissues and cell lines. Functional investigation showed that knockdown of TTN-AS1 inhibited CRC cell proliferation and invasion, while enhanced cell apoptosis. Bioinformatics analysis identified miR-376a-3p as a target of TTN-AS1. Transfection of miR-376a-3p inhibitor mitigated the alterations induced by TTN-AS1 knockdown. Moreover, TTN-AS1 positively regulated KLF15 via sponging miR-376a-3p. Additionally, these findings were supported by in vivo experiments. SIGNIFICANCE In conclusions, TTN-AS1 promoted CRC proliferation and invasion through miR-376a-3p/KLF15 axis. Our findings suggested that TTN-AS1 might be a potential therapeutic target in CRC treatment.
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Affiliation(s)
- Yanhua Wang
- Department of Internal Medicine of Digestive Tumors, Jiangxi Provincial Cancer Hospital, China
| | - Fang Jiang
- Department of Internal Medicine of Digestive Tumors, Jiangxi Provincial Cancer Hospital, China
| | - Yan Xiong
- Department of Internal Medicine of Digestive Tumors, Jiangxi Provincial Cancer Hospital, China
| | - Xiaoliang Cheng
- Department of Thoracic Surgery, Jiangxi Provincial Cancer Hospital, China
| | - Zhimin Qiu
- Department of Comprehensive Oncology Medicine, Jiangxi Provincial Cancer Hospital, China
| | - Rongfeng Song
- Department of Internal Medicine of Digestive Tumors, Jiangxi Provincial Cancer Hospital, China.
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Fu D, Lu C, Qu X, Li P, Chen K, Shan L, Zhu X. LncRNA TTN-AS1 regulates osteosarcoma cell apoptosis and drug resistance via the miR-134-5p/MBTD1 axis. Aging (Albany NY) 2019; 11:8374-8385. [PMID: 31600142 PMCID: PMC6814585 DOI: 10.18632/aging.102325] [Citation(s) in RCA: 91] [Impact Index Per Article: 18.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2019] [Accepted: 09/22/2019] [Indexed: 02/06/2023]
Abstract
AIM To explore the mechanism by which long non-coding RNA (lncRNA) TTN-AS1 regulates osteosarcoma cell apoptosis and drug resistance via the microRNA miR-134-5p/malignant brain tumour domain containing 1 (MBTD1) axis. RESULTS The lncRNA TTN-AS1 was highly expressed in osteosarcoma and was associated with poor prognosis. The lncRNA TTN-AS1 promoted cell viability and inhibited apoptosis. MiR-134-5p targeted MBTD1, which was regulated by lncRNA TTN-AS1. MBTD1 was highly expressed in osteosarcoma and was associated with poor prognosis. MBTD1 promoted cell viability and inhibited apoptosis, and knockdown of MBTD1 reversed the cancer-promoting effects of lncRNA TTN-AS1. Downregulation of lncRNA TTN-AS1 reduced drug resistance. CONCLUSION In osteosarcoma, lncRNA TTN-AS1 promoted the expression of MBTD1 by targeting miR-134-5p and regulated cell growth, apoptosis and drug resistance. METHODS The expression characteristics of genes in osteosarcoma patients were analysed using bioinformatics. Plasmid transfection technology was applied to silence or overexpress lncRNA TTN-AS1, miR-134-5p and MBTD1. Western blotting and quantitative polymerase chain reaction (qPCR) were used to detect protein and RNA, respectively. A cell counting kit 8 (CCK-8) and flow cytometry were used to detect cell viability and apoptosis. The effects of lncRNA TTN-AS1 and MBTD1 on osteosarcoma in vivo were studied by using a tumour burden assay.
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Affiliation(s)
- Dong Fu
- Children's Hospital of Shanghai, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Chunwen Lu
- Department of Spinal Surgery, Changhai Hospital, Affiliated to Naval Military Medical University, Shanghai, China
| | - Xingzhou Qu
- The Department of Oral Maxillofacial and Head Neck Oncology in the Ninth Hospital Affiliated Shanghai Jiaotong University, Shanghai, China
| | - Peng Li
- Children's Hospital of Shanghai, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Kai Chen
- Hai'an People's Hospital, Hai'an, Nantong, Jiangsu, China
| | - Liancheng Shan
- Department of Orthopedics, Tongren Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xiaodong Zhu
- Department of Orthopedics, Tongren Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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Darbyshire M, du Toit Z, Rogers MF, Gaunt TR, Campbell C. Estimating the Frequency of Single Point Driver Mutations across Common Solid Tumours. Sci Rep 2019; 9:13452. [PMID: 31530827 PMCID: PMC6748970 DOI: 10.1038/s41598-019-48765-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2018] [Accepted: 08/05/2019] [Indexed: 02/08/2023] Open
Abstract
For cancers, such as common solid tumours, variants in the genome give a selective growth advantage to certain cells. It has recently been argued that the mean count of coding single nucleotide variants acting as disease-drivers in common solid tumours is frequently small in size, but significantly variable by cancer type (hypermutation is excluded from this study). In this paper we investigate this proposal through the use of integrative machine-learning-based classifiers we have proposed recently for predicting the disease-driver status of single nucleotide variants (SNVs) in the human cancer genome. We find that predicted driver counts are compatible with this proposal, have similar variabilities by cancer type and, to a certain extent, the drivers are identifiable by these machine learning methods. We further discuss predicted driver counts stratified by stage of disease and driver counts in non-coding regions of the cancer genome, in addition to driver-genes.
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Affiliation(s)
- Madeleine Darbyshire
- Intelligent Systems Laboratory, University of Bristol, Bristol, BS8 1UB, United Kingdom
| | - Zachary du Toit
- Bristol Medical School, University of Bristol, Bristol, BS8 1UD, United Kingdom
| | - Mark F Rogers
- Intelligent Systems Laboratory, University of Bristol, Bristol, BS8 1UB, United Kingdom
| | - Tom R Gaunt
- MRC Integrative Epidemiology Unit (IEU), University of Bristol, Bristol, BS8 2BN, United Kingdom
| | - Colin Campbell
- Intelligent Systems Laboratory, University of Bristol, Bristol, BS8 1UB, United Kingdom.
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Long noncoding RNA TTN-AS1 enhances the malignant characteristics of osteosarcoma by acting as a competing endogenous RNA on microRNA-376a thereby upregulating dickkopf-1. Aging (Albany NY) 2019; 11:7678-7693. [PMID: 31525734 PMCID: PMC6781980 DOI: 10.18632/aging.102280] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2019] [Accepted: 09/05/2019] [Indexed: 12/16/2022]
Abstract
The expression levels and detailed functions of TTN-AS1 in osteosarcoma (OS) have not yet been explored. This study aimed to measure TTN-AS1 expression in OS tissues and cell lines, investigate its specific roles in the aggressive characteristics of OS cells in vitro and in vivo, and elucidate the regulatory mechanisms of TTN-AS1 action. TTN-AS1 expression was high in OS tissue samples and cell lines; TTN-AS1 overexpression correlated with the clinical stage, distant metastasis, and shorter overall survival of the patients. A TTN-AS1 knockdown inhibited OS cell proliferation, migration, and invasion and induced apoptosis in vitro and slowed tumor growth in vivo. Mechanism investigation revealed that TTN-AS1 acts as a competing endogenous RNA on microRNA-376a-3p (miR-376a) in OS cells. Dickkopf-1 (DKK1) mRNA was identified as a direct target of miR-376a in OS cells. Resumption of DKK1 expression reversed the tumor-suppressive activities of miR-376a overexpression in OS cells. The knockdown of miR-376a counteracted the reduction in the malignant characteristics of OS cells by the downregulation of TTN-AS1. In conclusion, TTN-AS1 functions as a competing endogenous RNA targeting miR-376a and increases the malignancy of OS cells in vitro and in vivo by upregulating DKK1.
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Jia Y, Duan Y, Liu T, Wang X, Lv W, Wang M, Wang J, Liu L. LncRNA TTN-AS1 promotes migration, invasion, and epithelial mesenchymal transition of lung adenocarcinoma via sponging miR-142-5p to regulate CDK5. Cell Death Dis 2019; 10:573. [PMID: 31363080 PMCID: PMC6667499 DOI: 10.1038/s41419-019-1811-y] [Citation(s) in RCA: 76] [Impact Index Per Article: 15.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2019] [Revised: 06/21/2019] [Accepted: 07/10/2019] [Indexed: 12/11/2022]
Abstract
Emerging evidence suggests that long noncoding RNA (lncRNA) plays pivotal roles in regulating various biological process in human cancers. Titin-antisense RNA1 (TTN-AS1) has been regarded as a tumor promoting lncRNA in numerous cancers. However, the clinical significance and biological function of TTN-AS1 in lung adenocarcinoma (LUAD) remain unclear. In the present study, we revealed that the expression of TTN-AS1 was upregulated in LUAD tissues and cell lines. High TTN-AS1 expression was associated with TNM stage and lymph node metastasis of LUAD patients. In addition, high expression of TTN-AS1 was correlated with poor postoperative prognosis of LUAD patients. Knockdown of TTN-AS1 significantly inhibited the growth, proliferation, migration, and invasion ability of LUAD cells in vitro. Then, by using bioinformation analysis and luciferase reporter experiment, we identified that TTN-AS1 could function as a competing endogenous RNA (ceRNA) by sponging miR-142-5p to regulate the expression of cyclin-dependent kinase 5 (CDK5) in LUAD. Since CDK5 is a key regulator in the process of epithelial mesenchymal transition (EMT), we detected the expression of EMT-related proteins, consequently, EMT was suppressed by knockdown of TTN-AS1 while this phenomenon was rescued by miR-142-5p inhibitor. Taken above, our study revealed that TTN-AS1 played an important role in LUAD progression. TTN-AS1/miR-142-5p/CDK5 regulatory axis may serve as a novel therapeutic target in the treatment of LUAD.
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Affiliation(s)
- Yunlong Jia
- Department of Tumor Immunotherapy, Fourth Hospital of Hebei Medical University and Hebei Cancer Institute, Shijiazhuang, 050035, Hebei, China
| | - Yuqing Duan
- Department of Tumor Immunotherapy, Fourth Hospital of Hebei Medical University and Hebei Cancer Institute, Shijiazhuang, 050035, Hebei, China
| | - Tianxu Liu
- Department of Tumor Immunotherapy, Fourth Hospital of Hebei Medical University and Hebei Cancer Institute, Shijiazhuang, 050035, Hebei, China
| | - Xuexiao Wang
- Department of Tumor Immunotherapy, Fourth Hospital of Hebei Medical University and Hebei Cancer Institute, Shijiazhuang, 050035, Hebei, China
| | - Wei Lv
- Department of Tumor Immunotherapy, Fourth Hospital of Hebei Medical University and Hebei Cancer Institute, Shijiazhuang, 050035, Hebei, China
| | - Mengjie Wang
- Department of Tumor Immunotherapy, Fourth Hospital of Hebei Medical University and Hebei Cancer Institute, Shijiazhuang, 050035, Hebei, China
| | - Jiali Wang
- Department of Tumor Immunotherapy, Fourth Hospital of Hebei Medical University and Hebei Cancer Institute, Shijiazhuang, 050035, Hebei, China
| | - Lihua Liu
- Department of Tumor Immunotherapy, Fourth Hospital of Hebei Medical University and Hebei Cancer Institute, Shijiazhuang, 050035, Hebei, China.
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Luo J, Liu Z. Long non-coding RNA TTN-AS1 promotes the progression of lung adenocarcinoma by regulating PTEN/PI3K/AKT signaling pathway. Biochem Biophys Res Commun 2019; 514:140-147. [DOI: 10.1016/j.bbrc.2019.04.050] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Accepted: 04/07/2019] [Indexed: 12/22/2022]
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