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Zhou H, Xu J, Pan L. Functions of the Muscleblind-like protein family and their role in disease. Cell Commun Signal 2025; 23:97. [PMID: 39966885 PMCID: PMC11837677 DOI: 10.1186/s12964-025-02102-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2024] [Accepted: 02/10/2025] [Indexed: 02/20/2025] Open
Abstract
Conserved proteins are characterized by their functions remaining nearly constant throughout evolutionary history, both vertically through time and horizontally across species. In this review, we focus on a class of conserved proteins known as the Muscleblind-like (MBNL) family. As RNA-binding proteins, MBNL family members interact with pre-mRNAs through evolutionarily conserved tandem zinc finger domains and play critical roles in various RNA metabolic processes, including alternative splicing, mRNA stability, trafficking, regulation of subcellular localization, and alternative polyadenylation. Dysregulation of MBNL proteins can lead to severe consequences. Initially, research primarily associated MBNL proteins with myotonic dystrophy. However, recent studies have revealed their involvement in a broad spectrum of physiological and pathological processes, such as embryonic tissue differentiation and circulatory disorders. Furthermore, the emerging role of MBNL proteins in cancer sheds light on a novel aspect of these evolutionarily ancient proteins. This review provides a comprehensive overview of the MBNL family, emphasizing its structure, the mechanisms underlying its biological functions, and its roles in various diseases.Subject terms: Muscleblind-like-like protein, RNA-binding proteins, Alternative splicing, Tumor, Myotonic dystrophy.
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Affiliation(s)
- Hui Zhou
- Department of General Surgery, Second Xiangya Hospital, Central South University, Changsha, China
| | - Jiachi Xu
- Department of General Surgery, Second Xiangya Hospital, Central South University, Changsha, China.
| | - Liusheng Pan
- Department of anesthesiology, Yuexi Hospital of the Sixth Affiliated Hospital, Sun Yat-sen University, Xinyi, China.
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Cao W, He J, Feng J, Wu X, Wu T, Wang D, Min C, Niu X, Gao Z, Guo AY, Gong J. miRNASNP-v4: a comprehensive database for miRNA-related SNPs across 17 species. Nucleic Acids Res 2025; 53:D1066-D1074. [PMID: 39413204 PMCID: PMC11701550 DOI: 10.1093/nar/gkae888] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2024] [Revised: 09/21/2024] [Accepted: 09/27/2024] [Indexed: 10/18/2024] Open
Abstract
Single nucleotide polymorphisms (SNPs) within microRNAs (miRNAs) and their target binding sites can influence miRNA biogenesis and target regulation, thereby participating in a variety of diseases and biological processes. Current miRNA-related SNP databases are often species-limited or based on outdated data. Therefore, we updated our miRNASNP database to version 4 by updating data, expanding the species from Homo sapiens to 17 species, and introducing several new features. In miRNASNP-v4, 82 580 SNPs in miRNAs and 24 836 179 SNPs in 3'UTRs of genes across 17 species were identified and their potential effects on miRNA secondary structure and target binding were characterized. In addition, compared to the last release, miRNASNP-v4 includes the following improvements: (i) gene enrichment analysis for gained or lost miRNA target genes; (ii) identification of miRNA-related SNPs associated with drug response and immune infiltration in human cancers; (iii) inclusion of experimentally supported immune-related miRNAs and (iv) online prediction tools for 17 animal species. With the extensive data and user-friendly web interface, miRNASNP-v4 will serve as an invaluable resource for functional studies of SNPs and miRNAs in multiple species. The database is freely accessible at http://gong_lab.hzau.edu.cn/miRNASNP/.
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Affiliation(s)
- Wen Cao
- Hubei Hongshan Laboratory, College of Informatics, Huazhong Agricultural University, Wuhan 430070, China
- College of Life Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jiaxin He
- Hubei Hongshan Laboratory, College of Informatics, Huazhong Agricultural University, Wuhan 430070, China
| | - Jing Feng
- Hubei Hongshan Laboratory, College of Informatics, Huazhong Agricultural University, Wuhan 430070, China
| | - Xiaohong Wu
- Hubei Hongshan Laboratory, College of Informatics, Huazhong Agricultural University, Wuhan 430070, China
| | - Tian Wu
- Hubei Hongshan Laboratory, College of Informatics, Huazhong Agricultural University, Wuhan 430070, China
| | - Dongyang Wang
- Hubei Hongshan Laboratory, College of Informatics, Huazhong Agricultural University, Wuhan 430070, China
| | - Congcong Min
- Hubei Hongshan Laboratory, College of Informatics, Huazhong Agricultural University, Wuhan 430070, China
| | - Xiaohui Niu
- Hubei Hongshan Laboratory, College of Informatics, Huazhong Agricultural University, Wuhan 430070, China
| | - Zexia Gao
- Hubei Hongshan Laboratory, College of Informatics, Huazhong Agricultural University, Wuhan 430070, China
- College of Fisheries, Huazhong Agricultural University, Wuhan 430070, China
| | - An-Yuan Guo
- Department of thoracic surgery, West China Biomedical Big Data Center, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Jing Gong
- Hubei Hongshan Laboratory, College of Informatics, Huazhong Agricultural University, Wuhan 430070, China
- College of Biomedicine and Health, Huazhong Agricultural University, Wuhan 430070, China
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Chen Z, Lin W, Cai Q, Kweon SS, Shu XO, Tanikawa C, Jia WH, Wang Y, Su X, Yuan Y, Wen W, Kim J, Shin A, Jee SH, Matsuo K, Kim DH, Wang N, Ping J, Shin MH, Ren Z, Oh JH, Oze I, Ahn YO, Jung KJ, Gao YT, Pan ZZ, Kamatani Y, Han W, Long J, Matsuda K, Zheng W, Guo X. A large-scale microRNA transcriptome-wide association study identifies two susceptibility microRNAs, miR-1307-5p and miR-192-3p, for colorectal cancer risk. Hum Mol Genet 2024; 33:333-341. [PMID: 37903058 PMCID: PMC10840382 DOI: 10.1093/hmg/ddad185] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2022] [Revised: 07/20/2023] [Accepted: 10/24/2023] [Indexed: 11/01/2023] Open
Abstract
Transcriptome-wide association studies (TWAS) have identified many putative susceptibility genes for colorectal cancer (CRC) risk. However, susceptibility miRNAs, critical dysregulators of gene expression, remain unexplored. We genotyped DNA samples from 313 CRC East Asian patients and performed small RNA sequencing in their normal colon tissues distant from tumors to build genetic models for predicting miRNA expression. We applied these models and data from genome-wide association studies (GWAS) including 23 942 cases and 217 267 controls of East Asian ancestry to investigate associations of predicted miRNA expression with CRC risk. Perturbation experiments separately by promoting and inhibiting miRNAs expressions and further in vitro assays in both SW480 and HCT116 cells were conducted. At a Bonferroni-corrected threshold of P < 4.5 × 10-4, we identified two putative susceptibility miRNAs, miR-1307-5p and miR-192-3p, located in regions more than 500 kb away from any GWAS-identified risk variants in CRC. We observed that a high predicted expression of miR-1307-5p was associated with increased CRC risk, while a low predicted expression of miR-192-3p was associated with increased CRC risk. Our experimental results further provide strong evidence of their susceptible roles by showing that miR-1307-5p and miR-192-3p play a regulatory role, respectively, in promoting and inhibiting CRC cell proliferation, migration, and invasion, which was consistently observed in both SW480 and HCT116 cells. Our study provides additional insights into the biological mechanisms underlying CRC development.
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Affiliation(s)
- Zhishan Chen
- Division of Epidemiology, Department of Medicine, Vanderbilt Epidemiology Center, Vanderbilt-Ingram Cancer Center, Vanderbilt University School of Medicine, 2525 West End Ave, Nashville, TN 37203, United States
| | - Weiqiang Lin
- International Institutes of Medicine, The Fourth Affiliated Hospital, Zhejiang University School of Medicine, No. N1, Shangcheng Avenue, Yiwu, 322000 China
| | - Qiuyin Cai
- Division of Epidemiology, Department of Medicine, Vanderbilt Epidemiology Center, Vanderbilt-Ingram Cancer Center, Vanderbilt University School of Medicine, 2525 West End Ave, Nashville, TN 37203, United States
| | - Sun-Seog Kweon
- Department of Preventive Medicine, Chonnam National University Medical School, 160, Baekseo-ro, Dong-gu, Gwangju 61469, South Korea
| | - Xiao-Ou Shu
- Division of Epidemiology, Department of Medicine, Vanderbilt Epidemiology Center, Vanderbilt-Ingram Cancer Center, Vanderbilt University School of Medicine, 2525 West End Ave, Nashville, TN 37203, United States
| | - Chizu Tanikawa
- Laboratory of Genome Technology, Human Genome Center, Institute of Medical Science, University of Tokyo, 4 Chome-6-1 Shirokanedai, Minato City, Tokyo 108-8639, Japan
| | - Wei-Hua Jia
- State Key Laboratory of Oncology in South China, Cancer Center, Sun Yat-sen University, No. 651 Dongfeng Road East, Guangzhou 510060, China
| | - Ying Wang
- International Institutes of Medicine, The Fourth Affiliated Hospital, Zhejiang University School of Medicine, No. N1, Shangcheng Avenue, Yiwu, 322000 China
| | - Xinwan Su
- The Kidney Disease Center, the First Affiliated Hospital, Zhejiang University School of Medicine, 79 Qingchun Rd, Hangzhou, 310003 China
| | - Yuan Yuan
- The Kidney Disease Center, the First Affiliated Hospital, Zhejiang University School of Medicine, 79 Qingchun Rd, Hangzhou, 310003 China
| | - Wanqing Wen
- Division of Epidemiology, Department of Medicine, Vanderbilt Epidemiology Center, Vanderbilt-Ingram Cancer Center, Vanderbilt University School of Medicine, 2525 West End Ave, Nashville, TN 37203, United States
| | - Jeongseon Kim
- Department of Cancer Biomedical Science, Graduate School of Cancer Science and Policy, National Cancer Center, 323 Ilsan-ro, Ilsandong-gu, Goyang-si, 10408, Gyeonggi-do, South Korea
| | - Aesun Shin
- Department of Preventive Medicine, Seoul National University College of Medicine, Seoul National University Cancer Research Institute, 03 Daehak-ro, Jongno-gu, 03080, Seoul, Korea
| | - Sun Ha Jee
- Department of Epidemiology and Health Promotion, Graduate School of Public Health, Yonsei University, 50-1, Yonsei-Ro, Seodaemun-gu, Seoul 03722, South Korea
| | - Keitaro Matsuo
- Division of Molecular and Clinical Epidemiology, Aichi Cancer Center Research Institute, 1-1 Kanokoden, Chikusa-ku Nagoya 464-8681, Japan
- Department of Epidemiology, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, 466-8550, Japan
| | - Dong-Hyun Kim
- Department of Social and Preventive Medicine, Hallym University College of Medicine, Okcheon-dong, Chuncheon, 200-702 South Korea
| | - Nan Wang
- Department of General Surgery, Tangdu Hospital, the Air Force Medical University, 569 Xinsi Road, Xi'an, Shaanxi, 710038 China
| | - Jie Ping
- Division of Epidemiology, Department of Medicine, Vanderbilt Epidemiology Center, Vanderbilt-Ingram Cancer Center, Vanderbilt University School of Medicine, 2525 West End Ave, Nashville, TN 37203, United States
| | - Min-Ho Shin
- Department of Preventive Medicine, Chonnam National University Medical School, 160, Baekseo-ro, Dong-gu, Gwangju 61469, South Korea
| | - Zefang Ren
- School of Public Health, Sun Yat-sen University, No. 74 Zhongshan Road 2, Yuexiu, Guangzhou, Guangdong 510080 China
| | - Jae Hwan Oh
- Center for Colorectal Cancer, National Cancer Center Hospital, National Cancer Center, 323, Ilsan-ro, Ilsandong-gu, Goyang-si, Gyeonggi-do,10408, South Korea
| | - Isao Oze
- Division of Cancer Epidemiology and Prevention, Aichi Cancer Center Research Institute, 1-1 Kanokoden, Chikusa-ku Nagoya 464-8681, Japan
| | - Yoon-Ok Ahn
- Department of Preventive Medicine, Seoul National University College of Medicine, Seoul National University Cancer Research Institute, 03 Daehak-ro, Jongno-gu, 03080, Seoul, Korea
| | - Keum Ji Jung
- Department of Epidemiology and Health Promotion, Graduate School of Public Health, Yonsei University, 50-1, Yonsei-Ro, Seodaemun-gu, Seoul 03722, South Korea
| | - Yu-Tang Gao
- State Key Laboratory of Oncogene and Related Genes & Department of Epidemiology, Shanghai Cancer Institute, Renji Hospital, Shanghai Jiao Tong University School of Medicine, 227 South Chongqing Road, Shanghai, China
| | - Zhi-Zhong Pan
- State Key Laboratory of Oncology in South China, Cancer Center, Sun Yat-sen University, No. 651 Dongfeng Road East, Guangzhou 510060, China
| | - Yoichiro Kamatani
- Laboratory for Statistical Analysis, RIKEN Center for Integrative Medical Sciences, 1-7-22 Suehiro-cho, Tsurumi-ku, Yokohama City, Kanagawa, 230-0045, Japan
- Kyoto-McGill International Collaborative School in Genomic Medicine, Kyoto University Graduate School of Medicine, Yoshida-Konoe-cho, Sakyo-ku, Kyoto 606-8501, Japan
| | - Weidong Han
- Department of Medical Oncology, Sir Run Run Shaw Hospital, Zhejiang University College of Medicine, Xiasha Road, Hangzhou, 310018 China
| | - Jirong Long
- Division of Epidemiology, Department of Medicine, Vanderbilt Epidemiology Center, Vanderbilt-Ingram Cancer Center, Vanderbilt University School of Medicine, 2525 West End Ave, Nashville, TN 37203, United States
| | - Koichi Matsuda
- Laboratory of Clinical Genome Sequencing, Department of Computational Biology and Medical Sciences, Graduate School of Frontier Sciences, University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa-shi, Chiba-ken 277-8562, Japan
| | - Wei Zheng
- Division of Epidemiology, Department of Medicine, Vanderbilt Epidemiology Center, Vanderbilt-Ingram Cancer Center, Vanderbilt University School of Medicine, 2525 West End Ave, Nashville, TN 37203, United States
| | - Xingyi Guo
- Division of Epidemiology, Department of Medicine, Vanderbilt Epidemiology Center, Vanderbilt-Ingram Cancer Center, Vanderbilt University School of Medicine, 2525 West End Ave, Nashville, TN 37203, United States
- Department of Biomedical Informatics, Vanderbilt University School of Medicine, 2525 West End Ave, Nashville, TN 37203, United States
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Wang HF, Zhou XF, Zhang QM, Wu JQ, Hou JH, Xu XL, Li XM, Liu YL. Involvement of circRNA Regulators MBNL1 and QKI in the Progression of Esophageal Squamous Cell Carcinoma. Cancer Control 2024; 31:10732748241257142. [PMID: 38769028 PMCID: PMC11107321 DOI: 10.1177/10732748241257142] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Revised: 04/25/2024] [Accepted: 05/03/2024] [Indexed: 05/22/2024] Open
Abstract
OBJECTIVES To investigate the role of circRNA regulators MBNL1 and QKI in the progression of esophageal squamous cell carcinoma. BACKGROUND MBNL1 and QKI are pivotal regulators of pre-mRNA alternative splicing, crucial for controlling circRNA production - an emerging biomarker and functional regulator of tumor progression. Despite their recognized roles, their involvement in ESCC progression remains unexplored. METHODS The expression levels of MBNL1 and QKI were examined in 28 tissue pairs from ESCC and adjacent normal tissues using data from the GEO database. Additionally, a total of 151 ESCC tissue samples, from stage T1 to T4, consisting of 13, 43, 87, and 8 cases per stage, respectively, were utilized for immunohistochemical (IHC) analysis. RNA sequencing was utilized to examine the expression profiles of circRNAs, lncRNAs, and mRNAs across 3 normal tissues, 3 ESCC tissues, and 3 pairs of KYSE150 cells in both wildtype (WT) and those with MBNL1 or QKI knockouts. Transwell, colony formation, and subcutaneous tumorigenesis assays assessed the impact of MBNL1 or QKI knockout on ESCC cell migration, invasion, and proliferation. RESULTS ESCC onset significantly altered MBNL1 and QKI expression levels, influencing diverse RNA species. Elevated MBNL1 or QKI expression correlated with patient age or tumor invasion depth, respectively. MBNL1 or QKI knockout markedly enhanced cancer cell migration, invasion, proliferation, and tumor growth. Moreover, the absence of either MBNL1 or QKI modulated the expression profiles of multiple circRNAs, causing extensive downstream alterations in the expression of numerous lncRNAs and mRNAs. While the functions of circRNA and lncRNA among the top 20 differentially expressed genes remain unclear, mRNAs like SLCO4C1, TMPRSS15, and MAGEB2 have reported associations with tumor progression. CONCLUSIONS This study underscores the tumor-suppressive roles of MBNL1 and QKI in ESCC, proposing them as potential biomarkers and therapeutic targets for ESCC diagnosis and treatment.
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Affiliation(s)
- Hai-Feng Wang
- Department of Oncology, The Second Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China
- Department of Oncology, The First Affiliated Hospital of Xinxiang Medical University, Xinxiang, Henan, China
| | - Xiao-Feng Zhou
- Henan Key Laboratory of Tumor Molecular Therapy Medicine, The Third Affiliated Hospital of Xinxiang Medical University, Xinxiang, Henan, China
| | - Qun-Mei Zhang
- Department of Blood Transfusion, The First Affiliated Hospital of Xinxiang Medical University, Xinxiang, Henan, China
| | - Jie-Qing Wu
- Department of Oncology, The First Affiliated Hospital of Xinxiang Medical University, Xinxiang, Henan, China
| | - Jing-Han Hou
- Henan Key Laboratory of Tumor Molecular Therapy Medicine, The Third Affiliated Hospital of Xinxiang Medical University, Xinxiang, Henan, China
| | - Xue-Lian Xu
- Department of Oncology, The First Affiliated Hospital of Xinxiang Medical University, Xinxiang, Henan, China
| | - Xiu-Min Li
- Henan Key Laboratory of Tumor Molecular Therapy Medicine, The Third Affiliated Hospital of Xinxiang Medical University, Xinxiang, Henan, China
| | - Yu-Long Liu
- Department of Oncology, The Second Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China
- State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection, Soochow University, Suzhou, Jiangsu, China
- Collaborative Innovation Center of Radiological Medicine of Jiangsu Higher Education Institutions, Suzhou, Jiangsu, P.R. China
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Zhou H, Hao X, Zhang P, He S. Noncoding RNA mutations in cancer. WILEY INTERDISCIPLINARY REVIEWS. RNA 2023; 14:e1812. [PMID: 37544928 DOI: 10.1002/wrna.1812] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/03/2022] [Revised: 07/14/2023] [Accepted: 07/17/2023] [Indexed: 08/08/2023]
Abstract
Cancer is driven by both germline and somatic genetic changes. Efforts have been devoted to characterizing essential genetic variations in cancer initiation and development. Most attention has been given to mutations in protein-coding genes and associated regulatory elements such as promoters and enhancers. The development of sequencing technologies and in silico and experimental methods has allowed further exploration of cancer predisposition variants and important somatic mutations in noncoding RNAs, mainly for long noncoding RNAs and microRNAs. Association studies including GWAS have revealed hereditary variations including SNPs and indels in lncRNA or miRNA genes and regulatory regions. These mutations altered RNA secondary structures, expression levels, and target recognition and then conferred cancer predisposition to carriers. Whole-exome/genome sequencing comparing cancer and normal tissues has revealed important somatic mutations in noncoding RNA genes. Mutation hotspots and somatic copy number alterations have been identified in various tumor-associated noncoding RNAs. Increasing focus and effort have been devoted to studying the noncoding region of the genome. The complex genetic network of cancer initiation is being unveiled. This article is categorized under: RNA in Disease and Development > RNA in Disease.
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Affiliation(s)
- Honghong Zhou
- Key Laboratory of RNA Biology, Center for Big Data Research in Health, Institute of Biophysics, Chinese Academy of Sciences, Beijing, China
| | - Xinpei Hao
- Key Laboratory of RNA Biology, Center for Big Data Research in Health, Institute of Biophysics, Chinese Academy of Sciences, Beijing, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Peng Zhang
- Key Laboratory of RNA Biology, Center for Big Data Research in Health, Institute of Biophysics, Chinese Academy of Sciences, Beijing, China
| | - Shunmin He
- Key Laboratory of RNA Biology, Center for Big Data Research in Health, Institute of Biophysics, Chinese Academy of Sciences, Beijing, China
- University of Chinese Academy of Sciences, Beijing, China
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Yan ZY, Hu WQ, Zong QQ, Yu GH, Zhai CX, Wang LL, Wang YH, Zhang TY, Li Z, Teng Y, Cai J, Chen YF, Li M, Xu ZZ, Pan FM, Pan HF, Su H, Zou YF. Associations of RPEL1 and miR-1307 gene polymorphisms with disease susceptibility, glucocorticoid efficacy, anxiety, depression, and health-related quality of life in Chinese systemic lupus erythematosus patients. Lupus 2022; 31:1735-1743. [PMID: 36194484 DOI: 10.1177/09612033221131182] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
OBJECTIVE Our present study intended to examine the associations of RPEL1 and miR-1307 gene polymorphisms (rs4917385 and rs7911488) with susceptibility, glucocorticoids (GCs) efficacy, anxiety, depression, and health-related quality of life (HRQoL) in Chinese systemic lupus erythematosus (SLE) patients. METHODS Initially, 1000 participants (500 SLE cases and 500 controls) were recruited for the case-control study. Then, 429 cases who received GCs were followed through 12 weeks to explore GCs efficacy, depression, anxiety, and HRQoL. We selected the iMLDR technique for genotyping: RPEL1: rs4917385 (G/T) and miR-1307: rs7911488 (A/G). RESULTS The minor G allele of rs7911488 reduced the risk of SLE (p = .024). Four haplotypes consisting of rs4917385 and rs7911488 were associated with SLE susceptibility (p < .025). Both rs4917385 and rs7911488 were associated with anxiety symptoms and physical function (PF) in SLE patients (p < .025). The rs4917385 was associated with depression and its improvement. No statistical significance was found between RPEL1 and miR-1307 gene polymorphisms with GCs efficacy. Meanwhile, additive interaction analysis showed a significant association between RPEL1 and miR-1307 gene polymorphisms with tea consumption in anxiety. CONCLUSION RPEL1 and miR-1307 gene polymorphisms (rs4917385 and rs7911488) might be related to SLE susceptibility in Chinese population. Additionally, the two polymorphisms were possibly associated with depression, anxiety, and HRQoL in Chinese SLE population.
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Affiliation(s)
- Zi-Ye Yan
- Department of Epidemiology and Biostatistics, School of Public Health, 12485Anhui Medical University, Hefei, China.,12485The Key Laboratory of Anhui Medical Autoimmune Diseases (Anhui Medical University), Hefei, China
| | - Wan-Qin Hu
- Department of Epidemiology and Biostatistics, School of Public Health, 12485Anhui Medical University, Hefei, China.,12485The Key Laboratory of Anhui Medical Autoimmune Diseases (Anhui Medical University), Hefei, China
| | - Qi-Qun Zong
- Department of Epidemiology and Biostatistics, School of Public Health, 12485Anhui Medical University, Hefei, China.,12485The Key Laboratory of Anhui Medical Autoimmune Diseases (Anhui Medical University), Hefei, China
| | - Guang-Hui Yu
- Department of Epidemiology and Biostatistics, School of Public Health, 12485Anhui Medical University, Hefei, China.,12485The Key Laboratory of Anhui Medical Autoimmune Diseases (Anhui Medical University), Hefei, China
| | - Chun-Xia Zhai
- Department of Epidemiology and Biostatistics, School of Public Health, 12485Anhui Medical University, Hefei, China.,12485The Key Laboratory of Anhui Medical Autoimmune Diseases (Anhui Medical University), Hefei, China
| | - Lin-Lin Wang
- Department of Epidemiology and Biostatistics, School of Public Health, 12485Anhui Medical University, Hefei, China.,12485The Key Laboratory of Anhui Medical Autoimmune Diseases (Anhui Medical University), Hefei, China
| | - Yu-Hua Wang
- Department of Epidemiology and Biostatistics, School of Public Health, 12485Anhui Medical University, Hefei, China.,12485The Key Laboratory of Anhui Medical Autoimmune Diseases (Anhui Medical University), Hefei, China
| | - Ting-Yu Zhang
- Department of Epidemiology and Biostatistics, School of Public Health, 12485Anhui Medical University, Hefei, China.,12485The Key Laboratory of Anhui Medical Autoimmune Diseases (Anhui Medical University), Hefei, China
| | - Zhen Li
- Department of Epidemiology and Biostatistics, School of Public Health, 12485Anhui Medical University, Hefei, China.,12485The Key Laboratory of Anhui Medical Autoimmune Diseases (Anhui Medical University), Hefei, China
| | - Ying Teng
- Department of Epidemiology and Biostatistics, School of Public Health, 12485Anhui Medical University, Hefei, China.,12485The Key Laboratory of Anhui Medical Autoimmune Diseases (Anhui Medical University), Hefei, China
| | - Jing Cai
- Department of Rheumatology and Immunology, 36639The First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Yang-Fan Chen
- Department of Rheumatology and Immunology, 36639The First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Mu Li
- Department of Rheumatology and Immunology, 36639The First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Zhou-Zhou Xu
- Department of Rheumatology and Immunology, 533251The Second Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Fa-Ming Pan
- Department of Epidemiology and Biostatistics, School of Public Health, 12485Anhui Medical University, Hefei, China.,12485The Key Laboratory of Anhui Medical Autoimmune Diseases (Anhui Medical University), Hefei, China
| | - Hai-Feng Pan
- Department of Epidemiology and Biostatistics, School of Public Health, 12485Anhui Medical University, Hefei, China.,12485The Key Laboratory of Anhui Medical Autoimmune Diseases (Anhui Medical University), Hefei, China
| | - Hong Su
- Department of Epidemiology and Biostatistics, School of Public Health, 12485Anhui Medical University, Hefei, China.,12485The Key Laboratory of Anhui Medical Autoimmune Diseases (Anhui Medical University), Hefei, China
| | - Yan-Feng Zou
- Department of Epidemiology and Biostatistics, School of Public Health, 12485Anhui Medical University, Hefei, China.,12485The Key Laboratory of Anhui Medical Autoimmune Diseases (Anhui Medical University), Hefei, China.,Key Laboratory of Dermatology, (Anhui Medical University), Ministry of Education, Hefei, China
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Matuszyk J. MALAT1-miRNAs network regulate thymidylate synthase and affect 5FU-based chemotherapy. Mol Med 2022; 28:89. [PMID: 35922756 PMCID: PMC9351108 DOI: 10.1186/s10020-022-00516-2] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Accepted: 07/22/2022] [Indexed: 12/12/2022] Open
Abstract
Background The active metabolite of 5-Fluorouracil (5FU), used in the treatment of several types of cancer, acts by inhibiting the thymidylate synthase encoded by the TYMS gene, which catalyzes the rate-limiting step in DNA replication. The major failure of 5FU-based cancer therapy is the development of drug resistance. High levels of TYMS-encoded protein in cancerous tissues are predictive of poor response to 5FU treatment. Expression of TYMS is regulated by various mechanisms, including involving non-coding RNAs, both miRNAs and long non-coding RNAs (lncRNAs). Aim To delineate the miRNAs and lncRNAs network regulating the level of TYMS-encoded protein. Main body Several miRNAs targeting TYMS mRNA have been identified in colon cancers, the levels of which can be regulated to varying degrees by lncRNAs. Due to their regulation by the MALAT1 lncRNA, these miRNAs can be divided into three groups: (1) miR-197-3p, miR-203a-3p, miR-375-3p which are downregulated by MALAT1 as confirmed experimentally and the levels of these miRNAs are actually reduced in colon and gastric cancers; (2) miR-140-3p, miR-330-3p that could potentially interact with MALAT1, but not yet supported by experimental results; (3) miR-192-5p, miR-215-5p whose seed sequences do not recognize complementary response elements within MALAT1. Considering the putative MALAT1-miRNAs interaction network, attention is drawn to the potential positive feedback loop causing increased expression of MALAT1 in colon cancer and hepatocellular carcinoma, where YAP1 acts as a transcriptional co-factor which, by binding to the TCF4 transcription factor/ β-catenin complex, may increase the activation of the MALAT1 gene whereas the MALAT1 lncRNA can inhibit miR-375-3p which in turn targets YAP1 mRNA. Conclusion The network of non-coding RNAs may reduce the sensitivity of cancer cells to 5FU treatment by upregulating the level of thymidylate synthase.
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Affiliation(s)
- Janusz Matuszyk
- Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, 12 R. Weigla Street, 53-114, Wroclaw, Poland.
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Abstract
MicroRNAs (miRNAs) are key players in gene regulation that target specific mRNAs for degradation or translational repression. Each miRNA is synthesized as a miRNA duplex comprising two strands (5p and 3p). However, only one of the two strands becomes active and is selectively incorporated into the RNA-induced silencing complex in a process known as miRNA strand selection. Recently, significant progress has been made in understanding the factors and processes involved in strand selection. Here, we explore the selection and functionality of the miRNA star strand (either 5p or 3p), which is generally present in the cell at low levels compared to its partner strand and, historically, has been thought to possess no biological activity. We also highlight the concepts of miRNA arm switching and miRNA isomerism. Finally, we offer insights into the impact of aberrant strand selection on immunity and cancer. Leading us through this journey is miR-155, a well-established regulator of immunity and cancer, and the increasing evidence that its 3p strand plays a role in these arenas. Interestingly, the miR-155-5p/-3p ratio appears to vary dependent on the timing of the immune response, and the 3p strand seems to play a regulatory role upon its partner 5p strand.
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Affiliation(s)
- Owen Dawson
- School of Pharmacy, University of Nottingham, Nottingham NG7 2RD, UK
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9
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Yu B, Dai W, Pang L, Sang Q, Li F, Yu J, Feng H, Li J, Hou J, Yan C, Su L, Zhu Z, Li YY, Liu B. The dynamic alteration of transcriptional regulation by crucial TFs during tumorigenesis of gastric cancer. Mol Med 2022; 28:41. [PMID: 35421923 PMCID: PMC9008954 DOI: 10.1186/s10020-022-00468-7] [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: 12/12/2021] [Accepted: 04/04/2022] [Indexed: 11/26/2022] Open
Abstract
Background The mechanisms of Gastric cancer (GC) initiation and progression are complicated, at least partly owing to the dynamic changes of gene regulation during carcinogenesis. Thus, investigations on the changes in regulatory networks can improve the understanding of cancer development and provide novel insights into the molecular mechanisms of cancer. Methods Differential co-expression analysis (DCEA), differential gene regulation network (GRN) modeling and differential regulation analysis (DRA) were integrated to detect differential transcriptional regulation events between gastric normal mucosa and cancer samples based on GSE54129 dataset. Cytological experiments and IHC staining assays were used to validate the dynamic changes of CREB1 regulated targets in different stages. Results A total of 1955 differentially regulated genes (DRGs) were identified and prioritized in a quantitative way. Among the top 1% DRGs, 14 out of 19 genes have been reported to be GC relevant. The four transcription factors (TFs) among the top 1% DRGs, including CREB1, BPTF, GATA6 and CEBPA, were regarded as crucial TFs relevant to GC progression. The differentially regulated links (DRLs) around the four crucial TFs were then prioritized to generate testable hypotheses on the differential regulation mechanisms of gastric carcinogenesis. To validate the dynamic alterations of gene regulation patterns of crucial TFs during GC progression, we took CREB1 as an example to screen its differentially regulated targets by using cytological and IHC staining assays. Eventually, TCEAL2 and MBNL1 were proved to be differentially regulated by CREB1 during tumorigenesis of gastric cancer. Conclusions By combining differential networking information and molecular cell experiments verification, testable hypotheses on the regulation mechanisms of GC around the core TFs and their top ranked DRLs were generated. Since TCEAL2 and MBNL1 have been reported to be potential therapeutic targets in SCLC and breast cancer respectively, their translation values in GC are worthy of further investigation. Supplementary Information The online version contains supplementary material available at 10.1186/s10020-022-00468-7.
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10
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Fang J, Jiang G, Mao W, Huang L, Huang C, Wang S, Xue H, Ke J, Ni Q. Up-regulation of long noncoding RNA MBNL1-AS1 suppresses breast cancer progression by modulating miR-423-5p/CREBZF axis. Bioengineered 2022; 13:3707-3723. [PMID: 35094653 PMCID: PMC8973591 DOI: 10.1080/21655979.2022.2026728] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Abstract
Breast cancer is the leading cause of cancer-related death among females, which is required to be solved urgently. Recent studies have found significant changes in a large number of genes and their transcriptional levels during breast cancer development, which are often closely related to the abnormal expression of long noncoding RNAs (lncRNAs). Herein, our study found that MBNL1-AS1 was down-regulated both in breast cancer tissues and cell lines, and it functioned as a tumor suppressor to inhibit cancer cell proliferation, migration, and invasion. MiR-423-5p was found to be a target of MBNL1-AS1 with an inverse relationship: an increase in miR-423-5p could counteract the inhibitory effect induced by MBNL1-AS1 on cancer cell promotion. Further, CREBZF was negatively regulated by miR-423-5p. Accordingly, CREBZF knockdown could impair the hindrance of cancer cell growth mediated by low miR-423-5p expression. Also, MBNL1-AS1 influenced the PI3K/AKT pathway, which was associated with cell proliferation and apoptosis, by regulating CREBZF. As a result, our work illustrated the tumor suppressor role of MBNL1-AS1 in breast cancer via upregulating miR-423-5p-targeted CREBZF. Thereby, the evidence indicates the complete understanding of the role of MBNL1-AS1/miR-423-5p/CREBZF axis in the regulation of breast cancer development, which could be used as a biomarker for predicating survival among breast cancer patients.
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Affiliation(s)
- Jun Fang
- Department of General Surgery, Affiliated Hospital of Nantong University, Nantong, Jiangsu Province, China
| | - Gaohui Jiang
- Department of General Surgery, Affiliated Hospital of Nantong University, Nantong, Jiangsu Province, China
| | - Weiguo Mao
- Department of General Surgery, Affiliated Hospital of Nantong University, Nantong, Jiangsu Province, China
| | - Lili Huang
- Department of Critical Care Medicine, Affiliated Hospital of Nantong University, Nantong, Jiangsu Province, China
| | - Chen Huang
- Department of General Surgery, Affiliated Hospital of Nantong University, Nantong, Jiangsu Province, China
| | - Shanshan Wang
- Department of General Surgery, Affiliated Hospital of Nantong University, Nantong, Jiangsu Province, China
| | - Huimin Xue
- Department of General Surgery, Affiliated Hospital of Nantong University, Nantong, Jiangsu Province, China
| | - Jing Ke
- Department of General Surgery, Affiliated Hospital of Nantong University, Nantong, Jiangsu Province, China
| | - Qichao Ni
- Department of General Surgery, Affiliated Hospital of Nantong University, Nantong, Jiangsu Province, China
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11
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Radanova M, Levkova M, Mihaylova G, Manev R, Maneva M, Hadgiev R, Conev N, Donev I. Single Nucleotide Polymorphisms in microRNA Genes and Colorectal Cancer Risk and Prognosis. Biomedicines 2022; 10:156. [PMID: 35052835 PMCID: PMC8773793 DOI: 10.3390/biomedicines10010156] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Revised: 01/09/2022] [Accepted: 01/10/2022] [Indexed: 02/01/2023] Open
Abstract
There is growing interest in single nucleotide polymorphisms (SNPs) in the genes of microRNAs (miRNAs), which could be associated with susceptibility to colorectal cancer (CRC) and therefore for prognosis of the disease and/or treatment response. Moreover, these miRNAs-SNPs could serve as new, low-invasive biomarkers for early detection of CRC. In the present article, we performed a thorough review of different SNPs, which were investigated for a correlation with the CRC risk, prognosis, and treatment response. We also analyzed the results from different meta-analyses and the possible reasons for reported contradictory findings, especially when different research groups investigated the same SNP in a gene for a particular miRNA. This illustrates the need for more case-control studies involving participants with different ethnic backgrounds. According to our review, three miRNAs-SNPs-miR-146a rs2910164, miR-27a rs895819 and miR-608 rs4919510-appear as promising prognostic, diagnostic and predictive biomarkers for CRC, respectively.
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Affiliation(s)
- Maria Radanova
- Department of Biochemistry, Molecular Medicine and Nutrigenomics, Medical University of Varna, 9000 Varna, Bulgaria;
- Laboratory of Molecular Pathology, University Hospital “St. Marina”, 9000 Varna, Bulgaria
| | - Mariya Levkova
- Department of Medical Genetics, Medical University of Varna, 9000 Varna, Bulgaria;
| | - Galya Mihaylova
- Department of Biochemistry, Molecular Medicine and Nutrigenomics, Medical University of Varna, 9000 Varna, Bulgaria;
| | - Rostislav Manev
- Department of Oncology, Medical University of Varna, 9000 Varna, Bulgaria; (R.M.); (M.M.); (N.C.)
- Clinic of Medical Oncology, University Hospital “St. Marina”, 9000 Varna, Bulgaria
| | - Margarita Maneva
- Department of Oncology, Medical University of Varna, 9000 Varna, Bulgaria; (R.M.); (M.M.); (N.C.)
- Clinic of Medical Oncology, University Hospital “St. Marina”, 9000 Varna, Bulgaria
| | - Rossen Hadgiev
- Department of Anatomy and Histology, Pathology and Forensic Medicine, Sofia University “St. Kliment Ohridski”, 1000 Sofia, Bulgaria;
| | - Nikolay Conev
- Department of Oncology, Medical University of Varna, 9000 Varna, Bulgaria; (R.M.); (M.M.); (N.C.)
- Clinic of Medical Oncology, University Hospital “St. Marina”, 9000 Varna, Bulgaria
| | - Ivan Donev
- Clinic of Medical Oncology, Hospital “Nadezhda”, 1000 Sofia, Bulgaria;
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12
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Xie S, Jiang X, Qin R, Song S, Lu Y, Wang L, Chen Y, Lu D. miR-1307 promotes hepatocarcinogenesis by CALR-OSTC-endoplasmic reticulum protein folding pathway. iScience 2021; 24:103271. [PMID: 34761190 PMCID: PMC8567365 DOI: 10.1016/j.isci.2021.103271] [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: 05/17/2021] [Revised: 08/27/2021] [Accepted: 10/12/2021] [Indexed: 12/20/2022] Open
Abstract
miR-1307 is highly expressed in liver cancer and inhibits methyltransferase protein8. Thereby, miR-1307 inhibits the expression of KDM3A and KDM3B and increases the methylation modification of histone H3 lysine 9, which enhances the expression of endoplasmic-reticulum-related gene CALR. Of note, miR-1307 weakens the binding ability of OSTC to CDK2, CDK4, CyclinD1, and cyclinE and enhances the binding ability of CALR to CDK2, CDK4, CyclinD1, and cyclinE, decreasing of p21WAF1/CIP1, GADD45, pRB, and p18, and decreasing of ppRB. Furthermore, miR-1307 increases the activity of H-Ras, PKM2, and PLK1. Strikingly, miR-1307 reduces the binding ability of OSTC to ATG4 and enhances the binding ability of CALR to ATG4. Therefore, miR-1307 reduces the occurrence of autophagy based on ATG4-LC3-ATG3-ATG7-ATG5-ATG16L1-ATG12-ATG9- Beclin1. In particular, miR-1307 enhances the expression of PAK2, PLK1, PRKAR2A, MYBL1, and Trim44 and inhibits the expression of Sash1 and Smad5 via autophagy. Our observations suggest that miR-1307 promotes hepatocarcinogenesis by CALR-OSTC-endoplasmic reticulum protein folding pathway.
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Affiliation(s)
- Sijie Xie
- Shanghai Putuo People's Hospital, School of Life Science and Technology, Tongji University, 200092 Shanghai, China
| | - Xiaoxue Jiang
- Shanghai Putuo People's Hospital, School of Life Science and Technology, Tongji University, 200092 Shanghai, China
| | - Rushi Qin
- Shanghai Putuo People's Hospital, School of Life Science and Technology, Tongji University, 200092 Shanghai, China
| | - Shuting Song
- Shanghai Putuo People's Hospital, School of Life Science and Technology, Tongji University, 200092 Shanghai, China
| | - Yanan Lu
- Shanghai Putuo People's Hospital, School of Life Science and Technology, Tongji University, 200092 Shanghai, China
| | - Liyan Wang
- Shanghai Putuo People's Hospital, School of Life Science and Technology, Tongji University, 200092 Shanghai, China
| | - Yingjie Chen
- Shanghai Putuo People's Hospital, School of Life Science and Technology, Tongji University, 200092 Shanghai, China
| | - Dongdong Lu
- Shanghai Putuo People's Hospital, School of Life Science and Technology, Tongji University, 200092 Shanghai, China
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13
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Ghafouri-Fard S, Hussen BM, Badrlou E, Abak A, Taheri M. MicroRNAs as important contributors in the pathogenesis of colorectal cancer. Biomed Pharmacother 2021; 140:111759. [PMID: 34091180 DOI: 10.1016/j.biopha.2021.111759] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2021] [Revised: 05/06/2021] [Accepted: 05/20/2021] [Indexed: 02/08/2023] Open
Abstract
Colorectal cancer (CRC) is the third most fatal and fourth most frequently diagnosed neoplasm in the world. Numerous non-coding RNAs have been shown to contribute in the development of CRC. MicroRNAs (miRNAs) are among the mostly assessed non-coding RNAs in CRC. These transcripts influence expression and activity of TGF-β, Wnt/β-catenin, MAPK, PI3K/AKT and other CRC-related pathways. In the context of CRC, miRNAs interact with long non-coding RNAs to influence CRC course. Stool and serum levels of miRNAs have been used to distinguish CRC patients from healthy controls, indicating diagnostic roles of these transcripts in CRC. Therapeutic application of miRNAs in CRC has been assessed in animal models, yet has not been verified in clinical settings. In the current review, we have provided a recent update on the role of miRNAs in CRC development as well as diagnostic and prognostic approaches.
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Affiliation(s)
- Soudeh Ghafouri-Fard
- Department of Medical Genetics, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Bashdar Mahmud Hussen
- Department of Pharmacognosy, College of Pharmacy, Hawler Medical University, Erbil, Iraq
| | - Elham Badrlou
- Department of Medical Genetics, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Atefe Abak
- Phytochemistry Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mohammad Taheri
- Skull Base Research Center, Loghman Hakim Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
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14
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Liu CJ, Fu X, Xia M, Zhang Q, Gu Z, Guo AY. miRNASNP-v3: a comprehensive database for SNPs and disease-related variations in miRNAs and miRNA targets. Nucleic Acids Res 2021; 49:D1276-D1281. [PMID: 32990748 PMCID: PMC7778889 DOI: 10.1093/nar/gkaa783] [Citation(s) in RCA: 90] [Impact Index Per Article: 22.5] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2020] [Revised: 09/02/2020] [Accepted: 09/09/2020] [Indexed: 11/14/2022] Open
Abstract
MicroRNAs (miRNAs) related single-nucleotide variations (SNVs), including single-nucleotide polymorphisms (SNPs) and disease-related variations (DRVs) in miRNAs and miRNA-target binding sites, can affect miRNA functions and/or biogenesis, thus to impact on phenotypes. miRNASNP is a widely used database for miRNA-related SNPs and their effects. Here, we updated it to miRNASNP-v3 (http://bioinfo.life.hust.edu.cn/miRNASNP/) with tremendous number of SNVs and new features, especially the DRVs data. We analyzed the effects of 7 161 741 SNPs and 505 417 DRVs on 1897 pre-miRNAs (2630 mature miRNAs) and 3'UTRs of 18 152 genes. miRNASNP-v3 provides a one-stop resource for miRNA-related SNVs research with the following functions: (i) explore associations between miRNA-related SNPs/DRVs and diseases; (ii) browse the effects of SNPs/DRVs on miRNA-target binding; (iii) functional enrichment analysis of miRNA target gain/loss caused by SNPs/DRVs; (iv) investigate correlations between drug sensitivity and miRNA expression; (v) inquire expression profiles of miRNAs and their targets in cancers; (vi) browse the effects of SNPs/DRVs on pre-miRNA secondary structure changes; and (vii) predict the effects of user-defined variations on miRNA-target binding or pre-miRNA secondary structure. miRNASNP-v3 is a valuable and long-term supported resource in functional variation screening and miRNA function studies.
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Affiliation(s)
- Chun-Jie Liu
- Research Center of Clinical Medicine, Affiliated Hospital of Nantong University, Nantong 226001, China.,Center for Artificial Intelligence Biology, Hubei Bioinformatics and Molecular Imaging Key Laboratory, Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Xin Fu
- Center for Artificial Intelligence Biology, Hubei Bioinformatics and Molecular Imaging Key Laboratory, Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Mengxuan Xia
- Center for Artificial Intelligence Biology, Hubei Bioinformatics and Molecular Imaging Key Laboratory, Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Qiong Zhang
- Center for Artificial Intelligence Biology, Hubei Bioinformatics and Molecular Imaging Key Laboratory, Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Zhifeng Gu
- Research Center of Clinical Medicine, Affiliated Hospital of Nantong University, Nantong 226001, China.,Department of Rheumatology, Affiliated Hospital of Nantong University, Nantong 226001, China
| | - An-Yuan Guo
- Research Center of Clinical Medicine, Affiliated Hospital of Nantong University, Nantong 226001, China.,Center for Artificial Intelligence Biology, Hubei Bioinformatics and Molecular Imaging Key Laboratory, Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, China
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15
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Sarabandi S, Sattarifard H, Kiumarsi M, Karami S, Taheri M, Hashemi M, Bahari G, Ghavami S. Association between Genetic Polymorphisms of miR-1307, miR- 1269, miR-3117 and Breast Cancer Risk in a Sample of South East Iranian Women. Asian Pac J Cancer Prev 2021; 22:201-208. [PMID: 33507700 PMCID: PMC8184203 DOI: 10.31557/apjcp.2021.22.1.201] [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: 10/11/2020] [Indexed: 12/13/2022] Open
Abstract
INTRODUCTION MicroRNAs (miRNAs) play an essential role in the susceptibility and development of cancer cells. OBJECTIVE Examining the dependency of breast cancer risk with genetic polymorphisms of miR-1307, miR-1269, and miR-3117 in a sample of Iranian women (southeast region). METHODS The case-control study consisted of 520 individuals (260 diagnosed BC patients, 260 healthy individuals). The polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) method was used for genotyping of miR-1307 rs7911488, miR-1269 rs73239138, and miR-3117 (rs4655646 and rs7512692) polymorphisms. RESULTS AND CONCLUSION This study provided evidence that miR-1307 rs7911488 polymorphism significantly reduced the risk of BC in heterozygous AG genotype, as well as dominant (AG+GG) genotype and G allele. A significant correlation was found between dominant (AA+AG) genotype, the A allele and protection against BC due to miR-1269 rs73239138 in the sample of study. In contrast, our findings suggested that AG genotype and G allele of miR-3117 rs4655646 polymorphism could increase BC's susceptibility among the southeastern Iranian females. The miR-3117 rs7512692 variant also increased the risk of BC in codominant, dominant and recessive models, as well as the T allele. The possible dependency of miR-1307, miR-1269, and miR-3117 variants with patients' clinicopathological characteristics and BC was also studied. It was concluded that there is a correlation between miR-3117 rs7512692 variant and tumor grade (p=0.031); also, a correlation between miR-1269 rs73239138 variant and progesterone receptor status (p=0.006). The current investigation revealed that miR-1307, miR-1269, and miR-3117 polymorphisms might play a crucial role in the Iranian population's vulnerability to BC.<br />.
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Affiliation(s)
- Sahel Sarabandi
- Department of Clinical Biochemistry, School of Medicine, Zahedan University of Medical Sciences, Zahedan, Iran
| | - Hedieh Sattarifard
- Department of Clinical Biochemistry, School of Medicine, Zahedan University of Medical Sciences, Zahedan, Iran.,Department of Human Anatomy and Cell Science, Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, MB R3E 3P4, Canada
| | - Mohammad Kiumarsi
- Department of Human Anatomy and Cell Science, Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, MB R3E 3P4, Canada
| | - Shima Karami
- Department of Clinical Biochemistry, School of Medicine, Zahedan University of Medical Sciences, Zahedan, Iran
| | - Mohsen Taheri
- Genetics of Non-Communicable Disease Research Center, Zahedan University of Medical Sciences, Zahedan, Iran
| | - Mohammad Hashemi
- Department of Clinical Biochemistry, School of Medicine, Zahedan University of Medical Sciences, Zahedan, Iran
| | - Gholamreza Bahari
- Department of Clinical Biochemistry, School of Medicine, Zahedan University of Medical Sciences, Zahedan, Iran.,Children and Adolescent Health Research Center, Resistant Tuberculosis Institute, Zahedan University of Medical Sciences, Zahedan, Iran
| | - Saeid Ghavami
- Department of Human Anatomy and Cell Science, Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, MB R3E 3P4, Canada.,Faculty of Medicine, Katowice School of Technology, 40-555 Katowice, Poland.,Autophagy Research Center, Faculty of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
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Circulating Exosomal MicroRNA-1307-5p as a Predictor for Metastasis in Patients with Hepatocellular Carcinoma. Cancers (Basel) 2020; 12:cancers12123819. [PMID: 33352935 PMCID: PMC7766543 DOI: 10.3390/cancers12123819] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2020] [Accepted: 12/15/2020] [Indexed: 02/08/2023] Open
Abstract
Simple Summary Exosomal microRNAs (exo-miRs) significantly contribute to cancer metastasis. However, few studies have investigated the role of exosomes as metastasis mediators in hepatocellular carcinoma (HCC) despite recent advancements in liquid biopsy. We aimed to identify pro-metastatic circulating exo-miRs potentially predicting metastasis onset in HCC through comprehensive and systematic integrative analyses of plasma exo-miR sequencing data and publicly available RNA expression datasets, and accordingly propose a potential mechanism of action of pro-metastatic miRs, including promoting epithelial–mesenchymal transition (EMT). We found that circulating exo-miR-1307-5p is a predictive marker for metastasis in patients with HCC, and EMT promotion through SEC14L2 and ENG downregulation could be the potential downstream pathway of miR-1307-5p. We believe that our study makes a significant contribution to the literature because our findings provide novel insights into the role of circulating exo-miRs in the pathogenesis and progression of HCC and suggest that exo-miRs are a potential treatment target in HCC. Abstract Exosomal microRNAs (exo-miRs) contribute to cancer metastasis. To identify pro-metastatic circulating exo-miRs in hepatocellular carcinoma (HCC), next-generation sequencing-based plasma exo-miR profiles of 14 patients with HCC (eight non-metastatic and six with metastasis within 1 year of follow-up) were analyzed. Sixty-one miRs were significantly overexpressed among patients with metastatic HCC. Candidate miRs were selected through integrative analyses of two different public expression datasets, GSE67140 and The Cancer Genome Atlas liver hepatocellular carcinoma (TCGA_LIHC). Integrative analyses revealed 3 of 61 miRs (miR-106b-5p, miR-1307-5p, and miR-340-5p) commonly overexpressed both in metastasis and vascular invasion groups, with prognostic implications. Validation was performed using stored blood samples of 150 patients with HCC. Validation analysis showed that circulating exo-miR-1307-5p was significantly overexpressed in the metastasis group (p = 0.04), as well as in the vascular invasion and tumor recurrence groups. Circulating exo-miR-1307-5p expression was significantly correlated with tumor stage progression (p < 0.0001). Downstream signaling pathways of miR-1307 were predicted using TargetScan and Ingenuity Pathway Analysis. On comprehensive bioinformatics analysis, the downstream pathway of miR-1307-5p, promoting epithelial–mesenchymal transition (EMT), showed SEC14L2 and ENG downregulation. Our results show that circulating exo-miR-1307-5p promotes metastasis and helps predict metastasis in HCC, and SEC14L2 and ENG are target tumor suppressor genes of miR-1307 that promote EMT.
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Yang M, Liu X, Meng F, Zhang Y, Wang M, Chen Y, Guo X, Chen W, Wang W. The rs7911488-T allele promotes the growth and metastasis of colorectal cancer through modulating miR-1307/PRRX1. Cell Death Dis 2020; 11:651. [PMID: 32811812 PMCID: PMC7434880 DOI: 10.1038/s41419-020-02834-x] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2020] [Revised: 07/28/2020] [Accepted: 07/29/2020] [Indexed: 12/18/2022]
Abstract
We previously discovered that rs7911488T>C in pre-miR-1307 was closely correlated to the risk of colorectal cancer (CRC). However, the roles of rs7911488 in CRC are still largely unknown. Here we explored the roles of rs7911488 in the growth and metastasis of CRC. We firstly generated cell lines SW480-T and SW480-C for stable expression of rs7911488 T-allelic and C-allelic pre-miR-1307, respectively. We subcutaneously grafted the cells into nude mice. We found that SW480-T tumors with high expression of miR-1307 obviously grew faster than the SW480-C tumors. Moreover, liver metastases (5/8) were observed in the mice bearing SW480-T tumors but not the SW480-C tumor-bearing mice. The results from colony formation assays, transwell assays, and wound healing assays demonstrated that the proliferative and metastatic abilities of SW480-T cells were evidently more potent than the SW480-C cells. Then we utilized gene array, real-time PCR, western blotting, and dual-luciferase reporter assays to figure out that miR-1307 directly inhibited PPRX1 expression by binding to its 3′-UTR. Thereafter, we confirmed that the proliferative and metastatic abilities of SW480 and HCT-116 cells were markedly enhanced by miR-1307, but were suppressed by PRRX1. Moreover, the regulatory roles of miR-1307 in the proliferation and metastasis of CRC cells were reversed by PRRX1. Notably, we also found that PRRX1 repressed CRC tumor growth in nude mice. In summary, our current study revealed that rs7911488-T allele led to over-expression of miR-1307, which inhibited PRRX1 and consequently promoted the proliferation and migration of CRC cells. This might offer a novel insight into the progression of CRC.
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Affiliation(s)
- Man Yang
- Center for Drug Metabolism and Pharmacokinetics, College of Pharmaceutical Sciences, Soochow University, Suzhou, 215123, China
| | - Xinchang Liu
- Center for Drug Metabolism and Pharmacokinetics, College of Pharmaceutical Sciences, Soochow University, Suzhou, 215123, China
| | - Fanyi Meng
- Center for Drug Metabolism and Pharmacokinetics, College of Pharmaceutical Sciences, Soochow University, Suzhou, 215123, China
| | - Yawen Zhang
- Center for Drug Metabolism and Pharmacokinetics, College of Pharmaceutical Sciences, Soochow University, Suzhou, 215123, China
| | - Mengmeng Wang
- Center for Drug Metabolism and Pharmacokinetics, College of Pharmaceutical Sciences, Soochow University, Suzhou, 215123, China
| | - Yinshuang Chen
- Center for Drug Metabolism and Pharmacokinetics, College of Pharmaceutical Sciences, Soochow University, Suzhou, 215123, China
| | - Xuqin Guo
- Center for Drug Metabolism and Pharmacokinetics, College of Pharmaceutical Sciences, Soochow University, Suzhou, 215123, China
| | - Weichang Chen
- Jiangsu Key Laboratory of Clinical Immunology, Soochow University, Suzhou, 215006, China. .,Jiangsu Key Laboratory of Gastrointestinal Tumor Immunology, The First Affiliated Hospital of Soochow University, Suzhou, 215006, China.
| | - Weipeng Wang
- Center for Drug Metabolism and Pharmacokinetics, College of Pharmaceutical Sciences, Soochow University, Suzhou, 215123, China. .,Jiangsu Key Laboratory of Clinical Immunology, Soochow University, Suzhou, 215006, China. .,Jiangsu Key Laboratory of Gastrointestinal Tumor Immunology, The First Affiliated Hospital of Soochow University, Suzhou, 215006, China.
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18
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Fischer S, Di Liddo A, Taylor K, Gerhardus JS, Sobczak K, Zarnack K, Weigand JE. Muscleblind-like 2 controls the hypoxia response of cancer cells. RNA (NEW YORK, N.Y.) 2020; 26:648-663. [PMID: 32127384 PMCID: PMC7161353 DOI: 10.1261/rna.073353.119] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Accepted: 02/27/2020] [Indexed: 05/03/2023]
Abstract
Hypoxia is a hallmark of solid cancers, supporting proliferation, angiogenesis, and escape from apoptosis. There is still limited understanding of how cancer cells adapt to hypoxic conditions and survive. We analyzed transcriptome changes of human lung and breast cancer cells under chronic hypoxia. Hypoxia induced highly concordant changes in transcript abundance, but divergent splicing responses, underlining the cell type-specificity of alternative splicing programs. While RNA-binding proteins were predominantly reduced, hypoxia specifically induced muscleblind-like protein 2 (MBNL2). Strikingly, MBNL2 induction was critical for hypoxia adaptation by controlling the transcript abundance of hypoxia response genes, such as vascular endothelial growth factor A (VEGFA) MBNL2 depletion reduced the proliferation and migration of cancer cells, demonstrating an important role of MBNL2 as cancer driver. Hypoxia control is specific for MBNL2 and not shared by its paralog MBNL1. Thus, our study revealed MBNL2 as central mediator of cancer cell responses to hypoxia, regulating the expression and alternative splicing of hypoxia-induced genes.
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Affiliation(s)
- Sandra Fischer
- Department of Biology, Technical University of Darmstadt, Darmstadt, 64287, Germany
| | - Antonella Di Liddo
- Buchmann Institute for Molecular Life Sciences, Goethe University Frankfurt, Frankfurt am Main, 60438, Germany
| | - Katarzyna Taylor
- Department of Gene Expression, Institute of Molecular Biology and Biotechnology, Faculty of Biology, Adam Mickiewicz University, Poznan, 61-614, Poland
| | - Jamina S Gerhardus
- Department of Biology, Technical University of Darmstadt, Darmstadt, 64287, Germany
| | - Krzysztof Sobczak
- Department of Gene Expression, Institute of Molecular Biology and Biotechnology, Faculty of Biology, Adam Mickiewicz University, Poznan, 61-614, Poland
| | - Kathi Zarnack
- Buchmann Institute for Molecular Life Sciences, Goethe University Frankfurt, Frankfurt am Main, 60438, Germany
| | - Julia E Weigand
- Department of Biology, Technical University of Darmstadt, Darmstadt, 64287, Germany
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Gomes BC, Honrado M, Armada A, Viveiros M, Rueff J, Rodrigues AS. ABC Efflux Transporters and the Circuitry of miRNAs: Kinetics of Expression in Cancer Drug Resistance. Int J Mol Sci 2020; 21:E2985. [PMID: 32340269 PMCID: PMC7215654 DOI: 10.3390/ijms21082985] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Revised: 04/18/2020] [Accepted: 04/22/2020] [Indexed: 12/19/2022] Open
Abstract
Cancer drug resistance (CDR) is a major problem in therapeutic failure. Over 90% of patients with metastatic cancer present CDR. Several mechanisms underlie CDR, including the increased expression of efflux ABC transporters and epigenetic phenomena. Nevertheless, a topic that is not usually addressed is the mechanism underlying the loss of CDR once the challenge to these cells is withdrawn. A KCR cell line (doxorubicin-resistant, expressing ABCB1) was used to induce loss of resistance by withdrawing doxorubicin in culture medium. ABCB1 activity was analysed by fluorescence microscopy and flow cytometry through substrate (DiOC2) retention assays. The expression of 1008 microRNAs was assessed before and after doxorubicin withdrawal. After 16 weeks of doxorubicin withdrawal, a decrease of ABCB1 activity and expression occurred. Moreover, we determined a signature of 23 microRNAs, 13 underexpressed and 10 overexpressed, as a tool to assess loss of resistance. Through pathway enrichment analysis, "Pathways in cancer", "Proteoglycans in cancer" and "ECM-receptor interaction" were identified as relevant in the loss of CDR. Taken together, the data reinforce the assumption that ABCB1 plays a major role in the kinetics of CDR, and their levels of expression are in the dependence of the circuitry of cell miRNAs.
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Affiliation(s)
- Bruno C. Gomes
- Centre for Toxicogenomics and Human Health; Genetics, Oncology and Human Toxicology, NOVA Medical School, Universidade NOVA de Lisboa, Rua Câmara Pestana 6, 1150-008 Lisbon, Portugal; (B.C.G.); (M.H.); (J.R.)
| | - Mónica Honrado
- Centre for Toxicogenomics and Human Health; Genetics, Oncology and Human Toxicology, NOVA Medical School, Universidade NOVA de Lisboa, Rua Câmara Pestana 6, 1150-008 Lisbon, Portugal; (B.C.G.); (M.H.); (J.R.)
| | - Ana Armada
- Global Health and Tropical Medicine, Instituto de Higiene e Medicina Tropical, Universidade NOVA de Lisboa, Rua da Junqueira 100, 1349-008 Lisbon, Portugal; (A.A.); (M.V.)
| | - Miguel Viveiros
- Global Health and Tropical Medicine, Instituto de Higiene e Medicina Tropical, Universidade NOVA de Lisboa, Rua da Junqueira 100, 1349-008 Lisbon, Portugal; (A.A.); (M.V.)
| | - José Rueff
- Centre for Toxicogenomics and Human Health; Genetics, Oncology and Human Toxicology, NOVA Medical School, Universidade NOVA de Lisboa, Rua Câmara Pestana 6, 1150-008 Lisbon, Portugal; (B.C.G.); (M.H.); (J.R.)
| | - António S. Rodrigues
- Centre for Toxicogenomics and Human Health; Genetics, Oncology and Human Toxicology, NOVA Medical School, Universidade NOVA de Lisboa, Rua Câmara Pestana 6, 1150-008 Lisbon, Portugal; (B.C.G.); (M.H.); (J.R.)
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20
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Down-regulation of MBNL1-AS1 contributes to tumorigenesis of NSCLC via sponging miR-135a-5p. Biomed Pharmacother 2020; 125:109856. [PMID: 32092823 DOI: 10.1016/j.biopha.2020.109856] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2019] [Revised: 12/11/2019] [Accepted: 12/13/2019] [Indexed: 02/07/2023] Open
Abstract
Lung cancer remains a big threat to human health. Growing evidence has reported the crucial regulatory effect of lncRNAs on NSCLC progression. Nevertheless, the detailed function of lncRNA MBNL1-AS1 involved in NSCLC development is poorly known. In our research, we confirmed that MBNL1-AS1 was significantly reduced in NSCLC patient tissues and NSCLC cells. Meanwhile, we reported that overexpression of MBNL1-AS1 obviously repressed A549 and H1975 cell proliferation, blocked cell cycle and inhibited the migration and invasion. Moreover, A549 and H1975 cell apoptosis was increased by the overexpression of MBNL1-AS1. Then, we predicted that miR-135a-5p was a potential target of MBNL1-AS1 and its level was correlated with MBNL1-AS1 in NSCLC negatively. Our previous study indicated miR-135a-5p could induce lung cancer progression through regulating LOXL4. Here, we found that MBNL1-AS1 was able to regulate miR-135a-5p expression negatively. The direct binding association between MBNL1-AS1 and miR-135a-5p was proved using dual-luciferase reporter assay and RIP experiment. Subcutaneous xenotransplanted tumor model was set up and it was confirmed increased MBNL1-AS1 remarkably restrained tumorigenic ability of NSCLC through sponging miR-135a-5p in vivo. To sum up, our data revealed the significance of the MBNL1-AS1 and miR-135a-5p in NSCLC. In conclusion, MBNL1-AS1 could be a new therapeutic target to treat NSCLC.
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21
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Zhu K, Wang Y, Liu L, Li S, Yu W. Long non-coding RNA MBNL1-AS1 regulates proliferation, migration, and invasion of cancer stem cells in colon cancer by interacting with MYL9 via sponging microRNA-412-3p. Clin Res Hepatol Gastroenterol 2020; 44:101-114. [PMID: 31255531 DOI: 10.1016/j.clinre.2019.05.001] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/19/2019] [Revised: 03/29/2019] [Accepted: 05/07/2019] [Indexed: 02/07/2023]
Abstract
BACKGROUND/AIMS Colon cancer is a common cancer that is a threat to human health. Some long non-coding RNAs (lncRNAs) have been observed to exert roles in colon cancer. Here, the current study is aimed to explore the potential mechanism of lncRNA MBNL1 antisense RNA 1 (MBNL1-AS1) in progression of colon cancer and the associated mechanisms. METHODS Microarray analysis was performed to screen differentially expressed lncRNA and genes associated with colon cancer and its potential mechanism. The functional role of MBNL1-AS1 in colon cancer was analyzed, followed identification of the interaction among MBNL1-AS1, microRNA-412-3p (miR-412-3p), and MYL9. Subsequently, CSC viability, migration, invasion, and apoptosis were detected though a series of in vitro experiments. At last, in vivo experiments were performed to assess tumor formation of colon CSCs. RESULTS MBNL1-AS1 and MYL9 were poorly expressed in colon cancer. MBNL1-AS1 could competitively bind to miR-412-3p so as to promote MYL9 expression. Enhancement of MBNL1-AS1 or inhibition of miR-412-3p was shown to decrease CSC proliferation, migration, and invasion but promote apoptosis. Moreover, MBNL1-AS1 reversed the CSC-like properties as well as xenograft tumor formation in vivo induced by miR-412-3p. CONCLUSION Collectively, the present study suggests an inhibitory role of MBNL1-AS1 in colon cancer by upregulating miR-412-3p-targeted MYL9. Thus, this study provides an enhanced understanding of MBNL1-AS1 along with miR-412-3p and MYL9 as therapeutic targets for colon cancer.
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Affiliation(s)
- Kongxi Zhu
- Department of Gastroenterology, The Second Hospital of Shandong University, No. 247, Beiyuan Street, 250033 Jinan, Shandon Province, PR China
| | - Yunxia Wang
- Department of Gastroenterology, The Second Hospital of Shandong University, No. 247, Beiyuan Street, 250033 Jinan, Shandon Province, PR China
| | - Lan Liu
- Department of Gastroenterology, The Second Hospital of Shandong University, No. 247, Beiyuan Street, 250033 Jinan, Shandon Province, PR China
| | - Shuai Li
- Department of Gastroenterology, The Second Hospital of Shandong University, No. 247, Beiyuan Street, 250033 Jinan, Shandon Province, PR China
| | - Weihua Yu
- Department of Gastroenterology, The Second Hospital of Shandong University, No. 247, Beiyuan Street, 250033 Jinan, Shandon Province, PR China.
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22
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Guan L, Li T, Ai N, Wang W, He B, Bai Y, Yu Z, Li M, Dong S, Zhu Q, Ding XX, Zhang S, Li M, Tang G, Xia X, Zhao J, Lin S, Yao S, Zhang L, Chen G, Liu FE, Li X, Zhang H. MEIS2C and MEIS2D promote tumor progression via Wnt/β-catenin and hippo/YAP signaling in hepatocellular carcinoma. JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2019; 38:417. [PMID: 31623651 PMCID: PMC6796342 DOI: 10.1186/s13046-019-1417-3] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/16/2019] [Accepted: 09/09/2019] [Indexed: 01/14/2023]
Abstract
Background MEIS2 has been identified as one of the key transcription factors in the gene regulatory network in the development and pathogenesis of human cancers. Our study aims to identify the regulatory mechanisms of MEIS2 in hepatocellular carcinoma (HCC), which could be targeted to develop new therapeutic strategies. Methods The variation of MEIS2 levels were assayed in a cohort of HCC patients. The proliferation, clone-formation, migration, and invasion abilities of HCC cells were measured to analyze the effects of MEIS2C and MEIS2D (MEIS2C/D) knockdown with small hairpin RNAs in vitro and in vivo. Chromatin immunoprecipitation (ChIP) was performed to identify MEIS2 binding site. Immunoprecipitation and immunofluorescence assays were employed to detect proteins regulated by MEIS2. Results The expression of MEIS2C/D was increased in the HCC specimens when compared with the adjacent noncancerous liver (ANL) tissues. Moreover, MEIS2C/D expression negatively correlated with the prognosis of HCC patients. On the other hand, knockdown of MEIS2C/D could inhibit proliferation and diminish migration and invasion of hepatoma cells in vitro and in vivo. Mechanistically, MESI2C activated Wnt/β-catenin pathway in cooperation with Parafibromin (CDC73), while MEIS2D suppressed Hippo pathway by promoting YAP nuclear translocation via miR-1307-3p/LATS1 axis. Notably, CDC73 could directly either interact with MEIS2C/β-catenin or MEIS2D/YAP complex, depending on its tyrosine-phosphorylation status. Conclusions Our studies indicate that MEISC/D promote HCC development via Wnt/β-catenin and Hippo/YAP signaling pathways, highlighting the complex molecular network of MEIS2C/D in HCC pathogenesis. These results suggest that MEISC/D may serve as a potential novel therapeutic target for HCC.
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Affiliation(s)
- Lei Guan
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, 28, Xianning West Road, Xi'an, 710049, Shaanxi, People's Republic of China
| | - Ting Li
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, 28, Xianning West Road, Xi'an, 710049, Shaanxi, People's Republic of China
| | - Nanping Ai
- Department of Ophthalmology, Chinese PLA General Hospital, Beijing, 100853, People's Republic of China
| | - Wei Wang
- Department of Immunology, State Key Laboratory of Cancer Biology, Fourth Military Medical University, Xi'an, China
| | - Bing He
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, 28, Xianning West Road, Xi'an, 710049, Shaanxi, People's Republic of China.,Department of Clinical Pharmacy, University of Michigan, Ann Arbor, MI, USA
| | - Yanxia Bai
- Department of Otolaryngology-Head-Neck Surgery, The First Affiliated Hospital, Medical School of Xi'an Jiaotong University, Xi'an, 710061, People's Republic of China
| | - Zhaocai Yu
- Department of Medical Oncology. Xijing Hospital, The Fourth Military Medical University, Xi'an, 710032, People's Republic of China
| | - Mingyue Li
- Department of Pathology and Laboratory Medicine, Perelman School of Medicine, University of Pennsylvania, 712 Stellar-Chance Laboratories, 422 Curie Blvd, Philadelphia, PA, 19104, USA
| | - Shanshan Dong
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, 28, Xianning West Road, Xi'an, 710049, Shaanxi, People's Republic of China
| | - Qingge Zhu
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, 28, Xianning West Road, Xi'an, 710049, Shaanxi, People's Republic of China
| | - Xiao Xiao Ding
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, 28, Xianning West Road, Xi'an, 710049, Shaanxi, People's Republic of China
| | - Shiming Zhang
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, 28, Xianning West Road, Xi'an, 710049, Shaanxi, People's Republic of China
| | - Ming Li
- School of Electronics and Information Engineering, Xi'an Jiaotong University, Xi'an, 710049, People's Republic of China
| | - Guangbo Tang
- Medical College, Xiamen University, Xiamen, 361102, People's Republic of China
| | - Xiaochun Xia
- Department of Medical Technology, Xiamen Medical College, Xiamen, 361023, People's Republic of China
| | - Jing Zhao
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, 28, Xianning West Road, Xi'an, 710049, Shaanxi, People's Republic of China
| | - Song Lin
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, 28, Xianning West Road, Xi'an, 710049, Shaanxi, People's Republic of China
| | - Shi Yao
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, 28, Xianning West Road, Xi'an, 710049, Shaanxi, People's Republic of China
| | - Lei Zhang
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, 28, Xianning West Road, Xi'an, 710049, Shaanxi, People's Republic of China.,Department of General Surgery, 967 Hospital of PLA, Dalian, 116041, People's Republic of China
| | - Geng Chen
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, 28, Xianning West Road, Xi'an, 710049, Shaanxi, People's Republic of China
| | - Fang-E Liu
- Medical College, Xi'an Peihua University, Xi'an, People's Republic of China
| | - Xinyuan Li
- Department of Pathology and Laboratory Medicine, Perelman School of Medicine, University of Pennsylvania, 712 Stellar-Chance Laboratories, 422 Curie Blvd, Philadelphia, PA, 19104, USA.
| | - Huqin Zhang
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, 28, Xianning West Road, Xi'an, 710049, Shaanxi, People's Republic of China.
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Wang YG, Wang T, Ding M, Xiang SH, Shi M, Zhai B. hsa_circ_0091570 acts as a ceRNA to suppress hepatocellular cancer progression by sponging hsa-miR-1307. Cancer Lett 2019; 460:128-138. [PMID: 31207319 DOI: 10.1016/j.canlet.2019.06.007] [Citation(s) in RCA: 94] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2019] [Revised: 06/10/2019] [Accepted: 06/11/2019] [Indexed: 12/11/2022]
Abstract
Alterations in circular RNA (circRNA) expression have a vital impact on the biological processes in cancer. Moreover, the expression pattern and roles of circRNAs in hepatocellular cancer (HCC) remain unclear. This study performed qRT-PCR to determine the regulated circRNAs in HCC tissues and cell lines. CCK8, 5-ethynyl-2'-deoxyuridine (EdU) assay, colony formation, cell cycle assay, apoptotic assay, transwell, and wound healing assay were conducted to assess the function of hsa_circ_0091570 or miR-1307 on cell proliferation, apoptosis, and migration in vitro. Mouse xenograft models were used to measure the functions of hsa_circ_0091570 in vivo. The decreased expression of hsa_circ_0091570 was associated with the pathological staging of HCC patients. Furthermore, inhibition of hsa_circ_0091570 promoted cell proliferation and migration, blocked cell apoptosis in HCC cell lines, and promoted tumor growth in the mouse xenograft model. RNA immunoprecipitation assay verified the interaction of hsa_circ_0091570 and miR-1307. The miR-1307 inhibitor inhibited the function induced by hsa_circ_0091570 siRNA. Overall, hsa_circ_0091570 sponge miR-1307 as a ceRNA and regulate ISM1 expression by exerting functional roles in HCC.
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Affiliation(s)
- Yu-Gang Wang
- Department of Gastroenterology, Tongren Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Tao Wang
- Department of Interventional Oncology, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China
| | - Min Ding
- Department of Interventional Oncology, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China
| | - Shi-Hao Xiang
- Department of Gastroenterology, Tongren Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Min Shi
- Department of Gastroenterology, Tongren Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
| | - Bo Zhai
- Department of Interventional Oncology, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China.
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miR-1307-3p overexpression inhibits cell proliferation and promotes cell apoptosis by targeting ISM1 in colon cancer. Mol Cell Probes 2019; 48:101445. [PMID: 31513891 DOI: 10.1016/j.mcp.2019.101445] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2019] [Revised: 09/01/2019] [Accepted: 09/09/2019] [Indexed: 12/11/2022]
Abstract
BACKGROUND colon adenocarcinoma (COAD) is the most common malignant tumor of gastrointestinal tract. Our study attempts to explore the effect of miR-1307-3p on biological function of COAD cells and its connection with isthmin 1 (ISM1). METHODS The miRNA dataset and clinical information of patients with COAD were downloaded from The Cancer Genome Atlas (TCGA) database. The survival prognosis was analyzed by GGSURV package from R. MicroRNA (miR)-1307-3p was identified by identifying overlapping miRNAs that target ISM1, across two databases (miRDB and Targetscan). Dual luciferase reporter assay was employed to scrutinize the relationship between miR-1307-3p and ISM1. RT-PCR was used to quantify miR-1307-3p and ISM1 expression of colon cancer tissues and cell lines. Western blot was performed to quantify related protein expression. Flow Cytometry, CCK8 and colony formation assays were performed to evaluate the apoptosis, cell cycle, cell viability and proliferation of COAD cells. RESULTS miR-1307-3p mRNA level decreased in both COAD tissues and cell lines. Overexpression of miR-1307-3p suppressed the proliferation, promoted apoptosis and arrested cell cycle at G1 phase, meanwhile, downregulation of ISM1 accelerated the proliferation, inhibited apoptosis and promote cell cycleprogression. The result of dual luciferase reporter assay indicated that miR-1307-3p targeted ISM1 directly and inhibited its expression. The functions of miR-1307-3p regulating cleaved caspase-3, cyclinD1, Ki67 protein levels and activation of Wnt3a/β-catenin signaling pathway were reversed by ISM1. CONCLUSIONS miR-1307-3p inhibited activation of Wnt3a/β-catenin signaling through targeting downregulation of ISM1, thereby inhibited proliferation and promote apoptosis of COAD cells.
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Zhou Y, Wang M, Shuang T, Liu Y, Zhang Y, Shi C. MiR-1307 influences the chemotherapeutic sensitivity in ovarian cancer cells through the regulation of the CIC transcriptional repressor. Pathol Res Pract 2019; 215:152606. [PMID: 31500928 DOI: 10.1016/j.prp.2019.152606] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/09/2019] [Revised: 08/06/2019] [Accepted: 08/18/2019] [Indexed: 01/26/2023]
Abstract
BACKGROUND Extended from our previously observation that expression of miR-1307 in chemoresistant primary ovarian cancer tissues is elevated, here we are aiming to dissect the function of miR-1307 and its predicted target gene, CIC (capicua transcriptional repressor), in ovarian cancer chemotherapy. METHODS We evaluated the expression of miR-1307 and CIC in chemoresistant and chemosensitive ovarian cancer tissues and cells by real time-PCR and western blot. We used chemoresistant/chemosensitive cells with miR-1307 suppression/overexpression to study the biological effects of miR-1307 by MTT and flow cytometer. Dual luciferase reporter gene assay was used to validate direct binding between miR-1307 and the 3'-UTR of CIC. Real-time PCR and western blot analyses, MTT and flow cytometry were used to reveal the biological effects of miR-1307 and CIC, as well as their regulation. RESULTS We found that miR-1307 affects cell cycle dynamics, cell viability in ovarian cancer cells. In addition, its expression level can influence chemosensitivity to paclitaxel in ovarian cancer cells. We also validate that CIC is a downstream target of miR-1307 via its regulation on 3'-UTR of CIC gene and ETV4 and ETV5 are also regulated by miR-1307/CIC axis. CONCLUSIONS Our data suggested that miR-1307 may be involved in the resistance of ovarian cancer to chemotherapy drugs via regulation of CIC, and should be further explored as a potential therapeutic target.
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Affiliation(s)
- Yingying Zhou
- Department of Obstetrics/Gynecology, Shengjing Hospital, China Medical University, Shenyang, China
| | - Min Wang
- Department of Obstetrics/Gynecology, Shengjing Hospital, China Medical University, Shenyang, China.
| | - Ting Shuang
- Department of Obstetrics/Gynecology, Shengjing Hospital, China Medical University, Shenyang, China; Department of Obstetrics/Gynecology, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shanxi, China
| | - Yisi Liu
- Department of Obstetrics/Gynecology, Shengjing Hospital, China Medical University, Shenyang, China; Cancer Hospital, China Medical University, Shenyang, China
| | - Yongqi Zhang
- Department of Obstetrics/Gynecology, Shengjing Hospital, China Medical University, Shenyang, China; Department of Obstetrics/Gynecology, Roicare Hospital & Clinics, Shenyang, China
| | - Cong Shi
- Department of Obstetrics/Gynecology, Shengjing Hospital, China Medical University, Shenyang, China; Women's and Children's Hospital, Shenyang, China
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Li P, Xing W, Xu J, Yuan D, Liang G, Liu B, Ma H. microRNA-301b-3p downregulation underlies a novel inhibitory role of long non-coding RNA MBNL1-AS1 in non-small cell lung cancer. Stem Cell Res Ther 2019; 10:144. [PMID: 31113460 PMCID: PMC6528355 DOI: 10.1186/s13287-019-1235-8] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2018] [Revised: 03/31/2019] [Accepted: 04/14/2019] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND Non-small cell lung cancer (NSCLC) is the second most prevalent cause of cancer-related fatality. Long non-coding RNAs (lncRNAs) have been observed to exercise functions in NSCLC. Here, the current study aimed to explore the potential mechanism of lncRNA MBNL1-AS1 in NSCLC. METHODS Microarray analysis was performed to screen the differentially expressed lncRNA associated with NSCLC and its potential mechanism. The lncRNA MBNL1-AS1 expression was quantified in 56 paired NSCLC and adjacent normal tissue samples. In an attempt to outline the function of lncRNA MBNL1-AS1 in NSCLC and to identify the interaction among lncRNA MBNL1-AS1, microRNA-301b-3p (miR-301b-3p) and TGFBR2, ectopic expression, depletion, and reporter assay experiments were conducted to detect CSC proliferation, migration, invasion, drug resistance, and sphere formation in NSCLC. RESULTS Initially, the intersection among lncRNA MBNL1-AS1, miR-301b-3p, and TGFBR2 was observed in NSCLC. While a poor expression of lncRNA MBNL1-AS1 and TGFBR2, along with a high expression of miR-301b-3p was observed in NSCLC tissues. A demonstration of lncRNA MBNL1-AS1 restoration significantly decreased CSC proliferation, migration, invasion, drug resistance, and sphere formation in NSCLC. LncRNA MBNL1-AS1 functioned as a sponge of miR-301b-3p, which inverted the inhibitory role of lncRNA MBNL1-AS1 in CSC proliferation, migration, invasion, drug resistance, and sphere formation in NSCLC. LncRNA MBNL1-AS1 positively regulated TGFBR2 which was a target gene of miR-301b-3p. At last, upregulated lncRNA MBNL1-AS1 or depleted miR-301b-3p suppressed the xenograft tumor formation in vivo. CONCLUSION Collectively, the present study suggests an inhibitory role of lncRNA MBNL1-AS1 in CSC drug resistance of NSCLC by upregulating miR-301b-3p-targeted TGFBR2.
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Affiliation(s)
- Peng Li
- Department of Thoracic Surgery, The Affiliated Cancer Hospital of Zhengzhou University, Henan Cancer Hospital, No. 127, Dongming Road, Jinshui District, Zhengzhou, 450008 Henan Province People’s Republic of China
| | - Wenqun Xing
- Department of Thoracic Surgery, The Affiliated Cancer Hospital of Zhengzhou University, Henan Cancer Hospital, No. 127, Dongming Road, Jinshui District, Zhengzhou, 450008 Henan Province People’s Republic of China
| | - Jinliang Xu
- Department of Thoracic Surgery, The Affiliated Cancer Hospital of Zhengzhou University, Henan Cancer Hospital, No. 127, Dongming Road, Jinshui District, Zhengzhou, 450008 Henan Province People’s Republic of China
| | - Dongfeng Yuan
- Department of Thoracic Surgery, The Affiliated Cancer Hospital of Zhengzhou University, Henan Cancer Hospital, No. 127, Dongming Road, Jinshui District, Zhengzhou, 450008 Henan Province People’s Republic of China
| | - Guanghui Liang
- Department of Thoracic Surgery, The Affiliated Cancer Hospital of Zhengzhou University, Henan Cancer Hospital, No. 127, Dongming Road, Jinshui District, Zhengzhou, 450008 Henan Province People’s Republic of China
| | - Baoxing Liu
- Department of Thoracic Surgery, The Affiliated Cancer Hospital of Zhengzhou University, Henan Cancer Hospital, No. 127, Dongming Road, Jinshui District, Zhengzhou, 450008 Henan Province People’s Republic of China
| | - Haibo Ma
- Department of Thoracic Surgery, The Affiliated Cancer Hospital of Zhengzhou University, Henan Cancer Hospital, No. 127, Dongming Road, Jinshui District, Zhengzhou, 450008 Henan Province People’s Republic of China
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27
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Zhou X, Mao Y, Zhu J, Meng F, Chen Q, Tao L, Li R, Fu F, Liu C, Hu Y, Wang W, Zhang H, Hua D, Chen W, Zhang X. TGF-β1 promotes colorectal cancer immune escape by elevating B7-H3 and B7-H4 via the miR-155/miR-143 axis. Oncotarget 2018; 7:67196-67211. [PMID: 27626488 PMCID: PMC5341868 DOI: 10.18632/oncotarget.11950] [Citation(s) in RCA: 65] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2016] [Accepted: 09/02/2016] [Indexed: 12/11/2022] Open
Abstract
Transforming growth factor-beta 1 (TGF-β1) suppresses T cell function, promoting tumor immune escape. Yet, whether the depression of TGF-β1 on T cell function is mediated by co-inhibitory molecules B7-H3 and B7-H4 remains largely unclear. Here, we demonstrated that TGF-β1 elevated the expression of miR-155 in colorectal cancer cells through SMAD3 and SMAD4. The upregulated miR-155 attenuated miR-143 by inhibiting its direct target, the transcription factor CEBPB. Consequently, the direct target genes of miR-143, B7-H3 and B7-H4, were augmented in the cytoplasm and membrane of tumor cells. Over-expression of B7-H3 and B7-H4 in HCT-116 cells induced T cells to secrete TGF-β1 and the immunosuppressive cytokines IL-2, IL-6, and IL-17. Restoration of miR-143 inhibited the growth of HCT-116 xenograft tumors in mice, and also repressed the expression of B7-H3 and B7-H4 in the tumors. Thus, this study reveals the mechanism by which TGF-β1 leads to T cell-mediated tumor evasion through an increase in B7-H3 and B7-H4 expression.
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Affiliation(s)
- Xinru Zhou
- Center for Drug Metabolism and Pharmacokinetics, College of Pharmaceutical Sciences, Soochow University, Suzhou, China
| | - Yong Mao
- Department of Oncology, The Fourth Affiliated Hospital of Soochow University, Wuxi, China
| | - Jianjie Zhu
- Center for Drug Metabolism and Pharmacokinetics, College of Pharmaceutical Sciences, Soochow University, Suzhou, China
| | - Fanyi Meng
- Center for Drug Metabolism and Pharmacokinetics, College of Pharmaceutical Sciences, Soochow University, Suzhou, China
| | - Qi Chen
- Center for Drug Metabolism and Pharmacokinetics, College of Pharmaceutical Sciences, Soochow University, Suzhou, China
| | - Lihua Tao
- Department of Gastroenterology, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Rui Li
- Department of Gastroenterology, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Fengqing Fu
- Jiangsu Institute of Clinical Immunology, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Cuiping Liu
- Jiangsu Institute of Clinical Immunology, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Yuanjia Hu
- Institute of Chinese Medical Sciences, State Key Laboratory of Quality Research in Chinese Medicine, University of Macau, Macau, China
| | - Weipeng Wang
- Center for Drug Metabolism and Pharmacokinetics, College of Pharmaceutical Sciences, Soochow University, Suzhou, China
| | - Hongjian Zhang
- Center for Drug Metabolism and Pharmacokinetics, College of Pharmaceutical Sciences, Soochow University, Suzhou, China
| | - Dong Hua
- Department of Oncology, The Fourth Affiliated Hospital of Soochow University, Wuxi, China
| | - Weichang Chen
- Department of Gastroenterology, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Xueguang Zhang
- Jiangsu Institute of Clinical Immunology, The First Affiliated Hospital of Soochow University, Suzhou, China
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The SNPs in pre-miRNA are related to the response of capecitabine-based therapy in advanced colon cancer patients. Oncotarget 2018; 9:6793-6799. [PMID: 29467929 PMCID: PMC5805515 DOI: 10.18632/oncotarget.23190] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2017] [Accepted: 12/01/2017] [Indexed: 12/21/2022] Open
Abstract
The single nucleotide polymorphisms (SNPs) in the microRNA precursor (pre-miRNA) may modulate the posttranscriptional regulation of gene expression and explain individual sensitivity to chemotherapy. Here we investigated the correlation between 23 SNPs in the pre-miRNA and the efficacy of capecitabine-based chemotherapy in 274 advanced colon cancer patients. Statistical analysis indicated that much more patients with rs744591 A/C(48.03%), C/C (53.45%) or C allele (49.73%) responded to the chemotherapy than those with the A/A genotype (33.71%). The response rates of rs745666 G/C heterozygous patients (35.25%) and C allele carriers (39.69%) were apparently less than that of the G/G homozygous patients (56.25%). Moreover, three SNPs rs2114358, rs35770269, and rs73239138 were significantly associated with the occurrence of side effects of chemotherapy. The patients with rs2114358 C allele (OR = 2.016) or rs35770269 T allele (OR = 2.299) were much more prone to endure adverse events. However, the incidence of side effect was lower in the patients carrying rs73239138 A allele than those with G/G genotype (OR = 0.500). Our findings demonstrate that genetic variations in pre-miRNA may influence the efficacy of capecitabine-based chemotherapy in advanced colon cancer patients.
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Lin Z, Changfu H, Fengling Z, Wei G, Lei B, Yiping L, Miao Z, Zhongzheng Y, Youliang Z, Shuyin D, Wu Y. Long non-coding RNA deep sequencing reveals the role of macrophage in liver disorders. Oncotarget 2017; 8:114966-114979. [PMID: 29383134 PMCID: PMC5777746 DOI: 10.18632/oncotarget.23154] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2017] [Accepted: 11/15/2017] [Indexed: 12/31/2022] Open
Abstract
Liver disorders such as hepatitis, cirrhosis and hepatocellular carcinoma are a series of the most life threatening diseases along with extensive inflammatory cellular infiltrations. Macrophage has been proved to be key regulators and initiators of inflammation, and long non-coding RNAs (lncRNAs) are recommended to play critical roles in the occurrence and development of a variety of diseases. To uncover the role of macrophage in liver disorders via lncRNA sequencing method, we first applied a lncRNA classification pipeline to identify 1247 lncRNAs represented on the Affymetrix Mouse Genome 430/430A 2.0 array. We then analyzed the lncRNA expression patterns in a set of previously published gene expression profiles of silica particle exposed macrophages and liver respectively, and identified and validated sets of differentially expressed lncRNAs shared by macrophages and liver. The functional enrichment analysis of these lncRNAs was processed on the basis of their expression signatures, three aspects including cis, trans and co-acting proteins were proposed. This is the first time to correlate macrophage with liver disorders via co-expressed lncRNAs. Our findings indicated that roles of macrophage in liver disorders were double-edged, the differentially expressed lncRNAs and their corresponding regulatory genes or proteins may serve as potential diagnostic biomarkers and therapeutic targets.
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Affiliation(s)
- Zhang Lin
- Department of Occupational and Environmental Health, School of Public Health, Zhengzhou University, Zhengzhou 450001, China.,Center for Reproductive Medicine, Shandong Provincial Hospital Affiliated to Shandong University, Jinan 250001, China.,Key Laboratory of Reproductive Endocrinology, Shandong University, Ministry of Education, National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Jinan 250001, China
| | - Hao Changfu
- Department of Occupational and Environmental Health, School of Public Health, Zhengzhou University, Zhengzhou 450001, China
| | - Zhao Fengling
- Department of Occupational Disease, Henan Provincial Institute of Occupational Health, Zhengzhou 450052, China
| | - Guo Wei
- Department of Occupational Disease, Henan Provincial Institute of Occupational Health, Zhengzhou 450052, China
| | - Bao Lei
- Department of Occupational and Environmental Health, School of Public Health, Zhengzhou University, Zhengzhou 450001, China
| | - Li Yiping
- Department of Occupational and Environmental Health, School of Public Health, Zhengzhou University, Zhengzhou 450001, China
| | - Zhang Miao
- Department of Occupational and Environmental Health, School of Public Health, Zhengzhou University, Zhengzhou 450001, China
| | - Yue Zhongzheng
- Department of Occupational and Environmental Health, School of Public Health, Zhengzhou University, Zhengzhou 450001, China
| | - Zhao Youliang
- Department of Occupational and Environmental Health, School of Public Health, Zhengzhou University, Zhengzhou 450001, China
| | - Duan Shuyin
- Department of Occupational and Environmental Health, School of Public Health, Zhengzhou University, Zhengzhou 450001, China
| | - Yao Wu
- Department of Occupational and Environmental Health, School of Public Health, Zhengzhou University, Zhengzhou 450001, China
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Chen Q, Mao Y, Meng F, Wang L, Zhang H, Wang W, Hua D. Rs7911488 modified the efficacy of capecitabine-based therapy in colon cancer through altering miR-1307-3p and TYMS expression. Oncotarget 2017; 8:74312-74319. [PMID: 29088787 PMCID: PMC5650342 DOI: 10.18632/oncotarget.19670] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2017] [Accepted: 05/09/2017] [Indexed: 01/04/2023] Open
Abstract
Capecitabine is an orally administered prodrug of 5-fluouracil (5-FU) and is used in first-line treatment of metastatic colorectal cancer. Studies have demonstrated that polymorphisms in 5-FU related ADME genes are associated with the efficacy of capecitabine. However, the relationship between the polymorphisms within the microRNA precursors and the efficacy of capecitabine is still largely unknown. We detected six polymorphisms in 274 colon cancer patients and statistically analyzed the association of the genotypes with the efficacy of capecitabine-based chemotherapy. The mechanisms underlying the effect of genotypes on the efficacy of capecitabine were also studied. We identified a polymorphism rs7911488 T>C in pre-miR-1307 to be significantly associated with the efficacy of capecitabine chemotherapy in colon cancer patients. The response rates of capecitabine chemotherapy for the patients with TT, TC, and CC genotypes were 44.35% (55/124), 51.33% (58/113), and 24.32% (9/37), respectively. In the C-allelic patients, miR-1307-3p is down-regulated and TYMS, a direct target of miR-1307-3p, is over-expressed, which leads to insensitivity of cancer cells to capecitabine chemotherapy. The cancer cells with rs7911488 C allele were further observed to be resistant to 5-FU treatment in vitro and in vivo. Our findings show that rs7911488 C-allelic pre-miR-1307 leads to attenuated miR-1307-3p and elevated TYMS, thus insensitive to capecitabine chemotherapy in colon cancer.
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Affiliation(s)
- Qi Chen
- Department of Medical Oncology, Institute of Cancer, Affiliated Hospital of Jiangnan University, The Fourth People's Hospital of Wuxi, Wuxi 214062, China.,Center for Drug Metabolism and Pharmacokinetics, College of Pharmaceutical Sciences, Soochow University, Suzhou 215123, China
| | - Yong Mao
- Department of Medical Oncology, Institute of Cancer, Affiliated Hospital of Jiangnan University, The Fourth People's Hospital of Wuxi, Wuxi 214062, China
| | - Fanyi Meng
- Center for Drug Metabolism and Pharmacokinetics, College of Pharmaceutical Sciences, Soochow University, Suzhou 215123, China
| | - Lei Wang
- Department of Pharmacy, Jiangsu Cancer Hospital, Nanjing 210000, China
| | - Hongjian Zhang
- Center for Drug Metabolism and Pharmacokinetics, College of Pharmaceutical Sciences, Soochow University, Suzhou 215123, China
| | - Weipeng Wang
- Center for Drug Metabolism and Pharmacokinetics, College of Pharmaceutical Sciences, Soochow University, Suzhou 215123, China
| | - Dong Hua
- Department of Medical Oncology, Institute of Cancer, Affiliated Hospital of Jiangnan University, The Fourth People's Hospital of Wuxi, Wuxi 214062, China
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Vodicka P, Pardini B, Vymetalkova V, Naccarati A. Polymorphisms in Non-coding RNA Genes and Their Targets Sites as Risk Factors of Sporadic Colorectal Cancer. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2017; 937:123-49. [PMID: 27573898 DOI: 10.1007/978-3-319-42059-2_7] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Colorectal cancer (CRC) is a complex disease that develops as a consequence of both genetic and environmental risk factors in interplay with epigenetic mechanisms, such as microRNAs (miRNAs). CRC cases are predominantly sporadic in which the disease develops with no apparent hereditary syndrome. The last decade has seen the progress of genome-wide association studies (GWAS) that allowed the discovery of several genetic regions and variants associated with weak effects on sporadic CRC. Collectively these variants may enable a more accurate prediction of an individual's risk to the disease and its prognosis. However, the number of variants contributing to CRC is still not fully explored.SNPs in genes encoding the miRNA sequence or in 3'UTR regions of the corresponding binding sites may affect miRNA transcription, miRNA processing, and/or the fidelity of the miRNA-mRNA interaction. These variants could plausibly impact miRNA expression and target mRNA translation into proteins critical for cellular integrity, differentiation, and proliferation.In the present chapter, we describe the different aspects of variations related to miRNAs and other non-coding RNAs (ncRNAs) and evidence from studies investigating these candidate genetic alterations in support to their role in CRC development and progression.
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Affiliation(s)
- Pavel Vodicka
- Institute of Experimental Medicine, Academy of Sciences of the Czech Republic, Videnska 1083, 142 00, Prague, Czech Republic. .,Institute of Biology and Medical Genetics, 1st Medical Faculty, Charles University, Albertov 4, 128 00, Prague, Czech Republic. .,Biomedical Centre, Faculty of Medicine in Pilsen, Charles University in Prague, 323 00, Pilsen, Czech Republic.
| | - Barbara Pardini
- Institute of Experimental Medicine, Academy of Sciences of the Czech Republic, Videnska 1083, 142 00, Prague, Czech Republic.,Human Genetics Foundation - Torino (HuGeF), via Nizza 52, 10126, Turin, Italy
| | - Veronika Vymetalkova
- Institute of Experimental Medicine, Academy of Sciences of the Czech Republic, Videnska 1083, 142 00, Prague, Czech Republic.,Institute of Biology and Medical Genetics, 1st Medical Faculty, Charles University, Albertov 4, 128 00, Prague, Czech Republic
| | - Alessio Naccarati
- Institute of Experimental Medicine, Academy of Sciences of the Czech Republic, Videnska 1083, 142 00, Prague, Czech Republic.,Human Genetics Foundation - Torino (HuGeF), via Nizza 52, 10126, Turin, Italy
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32
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miR-1307 promotes the proliferation of prostate cancer by targeting FOXO3A. Biomed Pharmacother 2017; 88:430-435. [DOI: 10.1016/j.biopha.2016.11.120] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2016] [Revised: 11/15/2016] [Accepted: 11/27/2016] [Indexed: 11/21/2022] Open
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33
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Tao LH, Zhou XR, Li FC, Chen Q, Meng FY, Mao Y, Li R, Hua D, Zhang HJ, Wang WP, Chen WC. A polymorphism in the promoter region of PD-L1 serves as a binding-site for SP1 and is associated with PD-L1 overexpression and increased occurrence of gastric cancer. Cancer Immunol Immunother 2017; 66:309-318. [PMID: 27889799 PMCID: PMC11028453 DOI: 10.1007/s00262-016-1936-0] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2016] [Accepted: 11/19/2016] [Indexed: 12/17/2022]
Abstract
PD-L1 is a member of the B7 family co-inhibitory molecules and plays a critical role in tumor immune escape. In this study, we found a polymorphism rs10815225 in the PD-L1 promoter region was significantly associated with the occurrence of gastric cancer. The GG homozygous frequency was higher in the cancer patients than that in the precancerous lesions, which was higher than that in the health controls. This polymorphism locates in the binding-site of Sp1 transcription factor (SP1). The expression level of PD-L1 mRNA in the GG homozygous cancer patients was apparently higher than that in the GC heterozygotes. Luciferase reporter results showed that SP1 bonded to rs10815225 G-allelic PD-L1 promoter instead of C-allelic. Upregulation and knockdown of SP1 resulted in elevation and attenuation of PD-L1 in SGC-7901 cells, respectively. The chromatin immunoprecipitation results further confirmed the binding of SP1 to the promoter of PD-L1. Additionally, rs10815225 was found to be in disequilibrium with a functional polymorphism rs4143815 in the PD-L1 3'-UTR, and the haplotypes of these two polymorphisms were also markedly related to gastric cancer risk. These results revealed a novel mechanism underlying genetic polymorphisms influencing PD-L1 expression modify gastric cancer susceptibility.
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Affiliation(s)
- Li-Hua Tao
- Center for Drug Metabolism and Pharmacokinetics, College of Pharmaceutical Sciences, Soochow University, Ren-ai Road 199, Suzhou, 215123, China
- Department of Gastroenterology, The First Affiliated Hospital of Soochow University, Shizhi Street 188, Suzhou, 215006, China
| | - Xin-Ru Zhou
- Center for Drug Metabolism and Pharmacokinetics, College of Pharmaceutical Sciences, Soochow University, Ren-ai Road 199, Suzhou, 215123, China
| | - Fu-Chao Li
- Department of Gastroenterology, The First Affiliated Hospital of Soochow University, Shizhi Street 188, Suzhou, 215006, China
| | - Qi Chen
- Center for Drug Metabolism and Pharmacokinetics, College of Pharmaceutical Sciences, Soochow University, Ren-ai Road 199, Suzhou, 215123, China
| | - Fan-Yi Meng
- Center for Drug Metabolism and Pharmacokinetics, College of Pharmaceutical Sciences, Soochow University, Ren-ai Road 199, Suzhou, 215123, China
| | - Yong Mao
- Department of Oncology, The Fourth Affiliated Hospital of Soochow University, Wuxi, 214062, China
| | - Rui Li
- Department of Gastroenterology, The First Affiliated Hospital of Soochow University, Shizhi Street 188, Suzhou, 215006, China
| | - Dong Hua
- Department of Oncology, The Fourth Affiliated Hospital of Soochow University, Wuxi, 214062, China
| | - Hong-Jian Zhang
- Center for Drug Metabolism and Pharmacokinetics, College of Pharmaceutical Sciences, Soochow University, Ren-ai Road 199, Suzhou, 215123, China
| | - Wei-Peng Wang
- Center for Drug Metabolism and Pharmacokinetics, College of Pharmaceutical Sciences, Soochow University, Ren-ai Road 199, Suzhou, 215123, China.
| | - Wei-Chang Chen
- Department of Gastroenterology, The First Affiliated Hospital of Soochow University, Shizhi Street 188, Suzhou, 215006, China.
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34
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MiR-1307 promotes ovarian cancer cell chemoresistance by targeting the ING5 expression. J Ovarian Res 2017; 10:1. [PMID: 28086946 PMCID: PMC5234104 DOI: 10.1186/s13048-016-0301-4] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2016] [Accepted: 12/29/2016] [Indexed: 11/10/2022] Open
Abstract
Background We aimed to investigate the function of miR-1307 in chemoresistance and to explore its chemoresistance mechanism in ovarian cancer. Methods IC50 determination was used to test the chemoresistance profling in ovarian cancer cells. QRT-PCR or western blot was used to validate the expression level of miR-1307 and candidate gene or protein. Colony formation assay and FITC-labeled enhanced Annexin V immunofluorescence were used to compare cell proliferation and apoptosis ability, respectively. The potential target gene and its biological function of miRNA-1307 were also analyzed. Bioinformatics and Luciferase Reporter Gene Assay were conducted to validate the regulation of miRNA-1307 on the ING5 expression. Xenografts assay was used to demonstrate the inhibiting effect of miR-1307 ASO and Taxol therapy against ovarian cancer in vivo. Results MiR-1307 was over-expressed in chemoresistant ovarian cancer cell line A2780/Taxol, and over-expression or loss of miR-1307 promoted or inhabited chemoresistance. And we also found that the over-expression of miR-1307 promoted proliferation and inhibited apoptosis in ovarian cancer cells. Besides, we demonstrated that ING5 was a direct target of miR-1307 and miR-1307 down-regulated the ING5 expression in ovarian cancer cells. Additionally, we showed that ING5 inhibited cell proliferation, promoted cell apoptosis and inhabited chemoresistance reversely. Furthermore, the up-regulated ability of cell apoptosis and down-regulated ability of chemoresistance following the loss of miR-1307 was reversed by adding ING5 siRNA in vitro. Finally, we proved the inhibiting effect of miR-1307 ASO and Taxol therapy by increasing the ING5 expression against ovarian cancer through xenografts assay in vivo. Conclusion Our results suggested that miR-1307 could promote ovarian cancer chemoresistance by targeting the ING5 expression and miR-1307 might serve as a therapeutic target for ovarian cancer.
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García-Donas J, Beuselinck B, Inglada-Pérez L, Graña O, Schöffski P, Wozniak A, Bechter O, Apellániz-Ruiz M, Leandro-García LJ, Esteban E, Castellano DE, González Del Alba A, Climent MA, Hernando S, Arranz JA, Morente M, Pisano DG, Robledo M, Rodriguez-Antona C. Deep sequencing reveals microRNAs predictive of antiangiogenic drug response. JCI Insight 2016; 1:e86051. [PMID: 27699216 DOI: 10.1172/jci.insight.86051] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
The majority of metastatic renal cell carcinoma (RCC) patients are treated with tyrosine kinase inhibitors (TKI) in first-line treatment; however, a fraction are refractory to these antiangiogenic drugs. MicroRNAs (miRNAs) are regulatory molecules proven to be accurate biomarkers in cancer. Here, we identified miRNAs predictive of progressive disease under TKI treatment through deep sequencing of 74 metastatic clear cell RCC cases uniformly treated with these drugs. Twenty-nine miRNAs were differentially expressed in the tumors of patients who progressed under TKI therapy (P values from 6 × 10-9 to 3 × 10-3). Among 6 miRNAs selected for validation in an independent series, the most relevant associations corresponded to miR-1307-3p, miR-155-5p, and miR-221-3p (P = 4.6 × 10-3, 6.5 × 10-3, and 3.4 × 10-2, respectively). Furthermore, a 2 miRNA-based classifier discriminated individuals with progressive disease upon TKI treatment (AUC = 0.75, 95% CI, 0.64-0.85; P = 1.3 × 10-4) with better predictive value than clinicopathological risk factors commonly used. We also identified miRNAs significantly associated with progression-free survival and overall survival (P = 6.8 × 10-8 and 7.8 × 10-7 for top hits, respectively), and 7 overlapped with early progressive disease. In conclusion, this is the first miRNome comprehensive study, to our knowledge, that demonstrates a predictive value of miRNAs for TKI response and provides a new set of relevant markers that can help rationalize metastatic RCC treatment.
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Affiliation(s)
- Jesús García-Donas
- Oncology Unit, HM Hospitales - Centro Integral Oncológico HM Clara Campal, Madrid, Spain.,Spanish Oncology Genitourinary Group, Madrid, Spain
| | - Benoit Beuselinck
- Department of General Medical Oncology, University Hospitals Leuven, and.,Laboratory for Experimental Oncology, KU Leuven, Leuven, Belgium
| | - Lucía Inglada-Pérez
- Hereditary Endocrine Cancer Group, Human Cancer Genetics Programme, Spanish National Cancer Research Centre, Madrid, Spain.,Centro de Investigación Biomédica en Red de Enfermedades Raras, Madrid, Spain
| | - Osvaldo Graña
- Bioinformatics Unit, Structural Biology and Biocomputing Programme, Spanish National Cancer Research Centre, Madrid, Spain
| | - Patrick Schöffski
- Department of General Medical Oncology, University Hospitals Leuven, and.,Laboratory for Experimental Oncology, KU Leuven, Leuven, Belgium
| | | | - Oliver Bechter
- Department of General Medical Oncology, University Hospitals Leuven, and.,Laboratory for Experimental Oncology, KU Leuven, Leuven, Belgium
| | - Maria Apellániz-Ruiz
- Hereditary Endocrine Cancer Group, Human Cancer Genetics Programme, Spanish National Cancer Research Centre, Madrid, Spain
| | - Luis Javier Leandro-García
- Hereditary Endocrine Cancer Group, Human Cancer Genetics Programme, Spanish National Cancer Research Centre, Madrid, Spain
| | - Emilio Esteban
- Spanish Oncology Genitourinary Group, Madrid, Spain.,Hospital Universitario Central de Asturias, Oviedo, Spain
| | - Daniel E Castellano
- Spanish Oncology Genitourinary Group, Madrid, Spain.,Hospital Universitario 12 de Octubre, Madrid, Spain
| | - Aranzazu González Del Alba
- Spanish Oncology Genitourinary Group, Madrid, Spain.,Hospital Universitario Son Espases, Palma de Mallorca, Spain
| | - Miguel Angel Climent
- Spanish Oncology Genitourinary Group, Madrid, Spain.,Fundación Instituto Valenciano de Oncología, Valencia, Spain
| | - Susana Hernando
- Spanish Oncology Genitourinary Group, Madrid, Spain.,Hospital Universitario Fundación Alcorcón, Madrid, Spain
| | - José Angel Arranz
- Spanish Oncology Genitourinary Group, Madrid, Spain.,Hospital General Universitario Gregorio Marañón, Madrid, Spain
| | - Manuel Morente
- Tumour Bank Unit, Spanish National Cancer Research Centre, Madrid, Spain
| | - David G Pisano
- Bioinformatics Unit, Structural Biology and Biocomputing Programme, Spanish National Cancer Research Centre, Madrid, Spain
| | - Mercedes Robledo
- Hereditary Endocrine Cancer Group, Human Cancer Genetics Programme, Spanish National Cancer Research Centre, Madrid, Spain.,Centro de Investigación Biomédica en Red de Enfermedades Raras, Madrid, Spain
| | - Cristina Rodriguez-Antona
- Hereditary Endocrine Cancer Group, Human Cancer Genetics Programme, Spanish National Cancer Research Centre, Madrid, Spain.,Centro de Investigación Biomédica en Red de Enfermedades Raras, Madrid, Spain
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36
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Pipan V, Zorc M, Kunej T. MicroRNA Polymorphisms in Cancer: A Literature Analysis. Cancers (Basel) 2015; 7:1806-14. [PMID: 26371044 PMCID: PMC4586796 DOI: 10.3390/cancers7030863] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2015] [Revised: 08/26/2015] [Accepted: 09/02/2015] [Indexed: 12/26/2022] Open
Abstract
Single nucleotide polymorphisms (SNPs) located in microRNA (miRNA) genes (miR-SNPs) have attracted increasing attention in recent years due to their involvement in the development of various types of cancer. Therefore, a systematic review on this topic was needed. From 55 scientific publications we collected 20 SNPs, which are located within 18 miRNA encoding genes and have been associated with 16 types of cancer. Among 20 miRNA gene polymorphisms 13 are located within the premature miRNA region, five within mature, and two within mature seed miRNA region. We graphically visualized a network of miRNA-cancer associations which revealed miRNA genes and cancer types with the highest number of connections. Our study showed that, despite a large number of variations currently known to be located within miRNA genes in humans, most of them have not yet been tested for association with cancer. MicroRNA SNPs collected in this study represent only 0.43% of known miRNA gene variations (20/4687). Results of the present study will be useful to researchers investigating the clinical use of miRNAs, such as the roles of miRNAs as diagnostic markers and therapeutic targets.
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Affiliation(s)
- Veronika Pipan
- Department of Animal Science, Biotechnical Faculty, University of Ljubljana,Groblje 3, SI-1230 Domzale, Slovenia.
| | - Minja Zorc
- Department of Animal Science, Biotechnical Faculty, University of Ljubljana,Groblje 3, SI-1230 Domzale, Slovenia.
| | - Tanja Kunej
- Department of Animal Science, Biotechnical Faculty, University of Ljubljana,Groblje 3, SI-1230 Domzale, Slovenia.
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