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Zhou P, Jiang N, Zhang GX, Sun Q. MiR-203 inhibits tumor invasion and metastasis in gastric cancer by ATM. Acta Biochim Biophys Sin (Shanghai) 2016; 48:696-703. [PMID: 27542403 DOI: 10.1093/abbs/gmw063] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2015] [Accepted: 05/25/2016] [Indexed: 12/11/2022] Open
Abstract
Gastric cancer is one of the most common malignancies in the world. A number of miRNAs are aberrantly expressed during the progression of gastric cancer. In this study, we aimed to investigate the role of miR-203 in the invasion and metastasis of gastric cancer and the potential mechanism of the effect of miR-203 on the tumor progression of gastric cancer. Our results showed that miR-203 was significantly downregulated in gastric cancer tissues and cells, while ataxia telangiectasia mutated kinase (ATM) was upregulated in gastric cancer tissues and cells and was directly regulated by miR-203. Ectopic overexpression of miR-203 inhibited the colony formation, migration, and invasion of gastric cancer cells. In addition, miR-203 overexpression significantly suppressed the protein level of Snail and obviously promoted the protein level of E-cadherin in gastric cancer cells. ATM knockdown phenocopied the effect of miR-203 overexpression. These results suggested that miR-203 suppressed the migration and invasion of gastric cancer through regulating the level of ATM-mediated-Snail and E-cadherin. MiR-203 might be a novel therapeutic strategy for the treatment of gastric cancer.
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Li S, Zeng A, Hu Q, Yan W, Liu Y, You Y. miR-423-5p contributes to a malignant phenotype and temozolomide chemoresistance in glioblastomas. Neuro Oncol 2016; 19:55-65. [PMID: 27471108 DOI: 10.1093/neuonc/now129] [Citation(s) in RCA: 96] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Gliomas are based on a genetic abnormality and present with a dismal prognosis. MicroRNAs (miRNAs) are considered to be important mediators of gene expression in glioma tissues. METHODS Real-time PCR was used to analyze the expression of microRNA-423-5p (miR-423-5p) in human glioma samples and normal brain tissue. Apoptosis, cell cycle, proliferation, immunostaining, transwell, in vitro 2D and 3D migration, and chemosensitivity assays were performed to assess the phenotypic changes in glioma cells overexpressing miRNA-423-5p. Western blotting was used to determine the expression of inhibitor of growth 4 (ING-4)in glioma tissues, and a luciferase reporter assay was conducted to confirm whether ING-4 is a direct target of miR-423-5p. Western blotting was used to identify the potential signaling pathways that are affected in glioma cell growth by miR-423-5p. Xenograft tumors were examined in vivo for the carcinogenic effects of miR-423-5p in glioma tissues. RESULTS We first reported that miR-423-5p expression was increased in gliomas and was a potential tumor promoter via targeting ING-4. The overexpression of miR-423-5p resulted in upregulation of important signaling molecules such as p-AKT and p-ERK1/2. In clinical samples, miR-423-5p was dysregulated, and a corresponding alteration in ING-4 expression was observed (P = .0207). Furthermore, the overexpression of miR-423-5p strengthened glioma cell proliferation, angiogenesis, and invasion. Finally, miR-423-5p overexpression also strengthened GBM neurosphere formation and rendered glioma cells resistant to temozolomide (TMZ). CONCLUSION This study establishes that miR-423-5p functions as an oncogene in glioma tissues by suppressing ING-4 and suggests that it has therapeutic potential for glioma.
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Affiliation(s)
- Shouwei Li
- Department of Neurosurgery, Sanbo Brain Hospital, Capital Medical University, Beijing, China (S.L.); Department of Neurosurgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China (A.Z., Q.H., W.Y., Y.Y.); Beijing Neurosurgical Institute, Capital Medical University, Beijing, China (Y.L.)
| | - Ailiang Zeng
- Department of Neurosurgery, Sanbo Brain Hospital, Capital Medical University, Beijing, China (S.L.); Department of Neurosurgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China (A.Z., Q.H., W.Y., Y.Y.); Beijing Neurosurgical Institute, Capital Medical University, Beijing, China (Y.L.)
| | - Qi Hu
- Department of Neurosurgery, Sanbo Brain Hospital, Capital Medical University, Beijing, China (S.L.); Department of Neurosurgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China (A.Z., Q.H., W.Y., Y.Y.); Beijing Neurosurgical Institute, Capital Medical University, Beijing, China (Y.L.)
| | - Wei Yan
- Department of Neurosurgery, Sanbo Brain Hospital, Capital Medical University, Beijing, China (S.L.); Department of Neurosurgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China (A.Z., Q.H., W.Y., Y.Y.); Beijing Neurosurgical Institute, Capital Medical University, Beijing, China (Y.L.)
| | - Yanwei Liu
- Department of Neurosurgery, Sanbo Brain Hospital, Capital Medical University, Beijing, China (S.L.); Department of Neurosurgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China (A.Z., Q.H., W.Y., Y.Y.); Beijing Neurosurgical Institute, Capital Medical University, Beijing, China (Y.L.)
| | - Yongping You
- Department of Neurosurgery, Sanbo Brain Hospital, Capital Medical University, Beijing, China (S.L.); Department of Neurosurgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China (A.Z., Q.H., W.Y., Y.Y.); Beijing Neurosurgical Institute, Capital Medical University, Beijing, China (Y.L.)
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Morales S, Gulppi F, Gonzalez-Hormazabal P, Fernandez-Ramires R, Bravo T, Reyes JM, Gomez F, Waugh E, Jara L. Association of single nucleotide polymorphisms in Pre-miR-27a, Pre-miR-196a2, Pre-miR-423, miR-608 and Pre-miR-618 with breast cancer susceptibility in a South American population. BMC Genet 2016; 17:109. [PMID: 27421647 PMCID: PMC4946190 DOI: 10.1186/s12863-016-0415-0] [Citation(s) in RCA: 53] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2016] [Accepted: 07/08/2016] [Indexed: 02/07/2023] Open
Abstract
Background MicroRNAs (miRNAs) are a novel class of endogenous, non-coding, single-stranded RNAs capable of regulating gene expression by suppressing translation or degrading mRNAs. Single nucleotide polymorphisms (SNP) can alter miRNA expression, resulting in diverse functional consequences. Previous studies have examined the association of miRNA SNPs with breast cancer (BC) susceptibility. The contribution of miRNA gene variants to BC susceptibility in South American women had been unexplored. Our study evaluated the association of the SNPs rs895819 in pre-miR27a, rs11614913 in pre-miR-196a2, rs6505162 in pre-miR-423, rs4919510 in miR-608, and rs2682818 in pre-mir-618 with familial BC and early-onset non-familial BC in non-carriers of BRCA1/2 mutations from a South American population. Results We evaluated the association of five SNPs with BC risk in 440 cases and 807 controls. Our data do not support an association of rs11614913:C > T and rs4919510:C > G with BC risk. The rs6505162:C > A was significantly associated with increased risk of familial BC in persons with a strong family history of BC (OR = 1.7 [95 % CI 1.0–2.0] p = 0.05). The rs2682818:C > A genotype C/A is associated with an increased BC risk in non-familial early-onset BC. For the rs895819:A > G polymorphism, the genotype G/G is significantly associated with reduced BC risk in families with a moderate history of BC (OR = 0.3 [95 % CI 0.1–0.8] p = 0.01). Conclusions The contribution of variant miRNA genes to BC in South American women had been unexplored. Our findings support the following conclusions: a) rs6505162:C > A in pre-miR-423 increases risk of familial BC in families with a strong history of BC; b) the C/A genotype at rs2682818:C > A (pre-miR-618) increases BC risk in non-familial early-onset BC; and c) the G/G genotype at rs895819:A > G (miR-27a) reduces BC risk in families with a moderate history of BC.
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Affiliation(s)
- Sebastián Morales
- Human Genetics Program, Institute of Biomedical Sciences (ICBM), School of Medicine, University of Chile, Av. Independencia 1027, Santiago, Chile.,Universidad Andres Bello, Facultad de Ciencias Biológicas, República N°217, Santiago, Chile
| | - Felipe Gulppi
- Hospital Clínico San Borja Arriaran, Avenida Santa Rosa 1234, Santiago, Chile
| | - Patricio Gonzalez-Hormazabal
- Human Genetics Program, Institute of Biomedical Sciences (ICBM), School of Medicine, University of Chile, Av. Independencia 1027, Santiago, Chile
| | - Ricardo Fernandez-Ramires
- Pathology and Oral Medicine, School of Odontology, University of Chile, Sergio Livingstone Pohlhammer 943, Santiago, Chile
| | - Teresa Bravo
- National Cancer Society Corporación Nacional del Cáncer CONAC, Santiago, Chile
| | | | | | | | - Lilian Jara
- Human Genetics Program, Institute of Biomedical Sciences (ICBM), School of Medicine, University of Chile, Av. Independencia 1027, Santiago, Chile. .,Laboratorio de Genética Molecular Humana, Facultad de Medicina, Instituto de Ciencias Biomédicas (ICBM), Programa de Genética, Universidad de Chile, Independencia 1027, Santiago, Chile.
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Pavkovic M, Robinson-Cohen C, Chua AS, Nicoara O, Cárdenas-González M, Bijol V, Ramachandran K, Hampson L, Pirmohamed M, Antoine DJ, Frendl G, Himmelfarb J, Waikar SS, Vaidya VS. Detection of Drug-Induced Acute Kidney Injury in Humans Using Urinary KIM-1, miR-21, -200c, and -423. Toxicol Sci 2016; 152:205-13. [PMID: 27122240 DOI: 10.1093/toxsci/kfw077] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Drug-induced acute kidney injury (AKI) is often encountered in hospitalized patients. Although serum creatinine (SCr) is still routinely used for assessing AKI, it is known to be insensitive and nonspecific. Therefore, our objective was to evaluate kidney injury molecule 1 (KIM-1) in conjunction with microRNA (miR)-21, -200c, and -423 as urinary biomarkers for drug-induced AKI in humans. In a cross-sectional cohort of patients (n = 135) with acetaminophen (APAP) overdose, all 4 biomarkers were significantly (P < .004) higher not only in APAP-overdosed (OD) patients with AKI (based on SCr increase) but also in APAP-OD patients without clinical diagnosis of AKI compared with healthy volunteers. In a longitudinal cohort of patients with malignant mesothelioma receiving intraoperative cisplatin (Cp) therapy (n = 108) the 4 biomarkers increased significantly (P < .0014) over time after Cp administration, but could not be used to distinguish patients with or without AKI. Evidence for human proximal tubular epithelial cells (HPTECs) being the source of miRNAs in urine was obtained first, by in situ hybridization based confirmation of increase in miR-21 expression in the kidney sections of AKI patients and second, by increased levels of miR-21, -200c, and -423 in the medium of cultured HPTECs treated with Cp and 4-aminophenol (APAP degradation product). Target prediction analysis revealed 1102 mRNA targets of miR-21, -200c, and -423 that are associated with pathways perturbed in diverse pathological kidney conditions. In summary, we report noninvasive detection of AKI in humans by combining the sensitivity of KIM-1 along with mechanistic potentials of miR-21, -200c, and -423.
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Affiliation(s)
- Mira Pavkovic
- *Laboratory of Systems Pharmacology, Harvard Medical School, Boston, Massachusetts 02115 Department of Medicine, Brigham and Women's Hospital, Boston, Massachusetts 02115
| | | | - Alicia S Chua
- Department of Neurology, Brigham and Women's Hospital, Boston, Massachusetts 02115
| | - Oana Nicoara
- Boston Children's Hospital, Nephrology, Boston, Massachusetts 02115
| | | | - Vanesa Bijol
- Department of Pathology, Brigham and Women's Hospital, Boston, Massachusetts 02115
| | | | - Lucy Hampson
- Molecular and Clinical Pharmacology, University of Liverpool, Liverpool, L69 3BX, UK
| | - Munir Pirmohamed
- Molecular and Clinical Pharmacology, University of Liverpool, Liverpool, L69 3BX, UK
| | - Daniel J Antoine
- Molecular and Clinical Pharmacology, University of Liverpool, Liverpool, L69 3BX, UK
| | - Gyorgy Frendl
- Department of Anesthesiology, Brigham and Women's Hospital, Boston, Massachusetts 02115
| | - Jonathan Himmelfarb
- Kidney Research Institute, University of Washington, Seattle, Washington 98195
| | - Sushrut S Waikar
- Department of Medicine, Brigham and Women's Hospital, Boston, Massachusetts 02115
| | - Vishal S Vaidya
- *Laboratory of Systems Pharmacology, Harvard Medical School, Boston, Massachusetts 02115 Department of Medicine, Brigham and Women's Hospital, Boston, Massachusetts 02115 Harvard School of Public Health, Environmental Health, Boston, MA, 02115
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Momose F, Seo N, Akahori Y, Sawada SI, Harada N, Ogura T, Akiyoshi K, Shiku H. Guanine-Rich Sequences Are a Dominant Feature of Exosomal microRNAs across the Mammalian Species and Cell Types. PLoS One 2016; 11:e0154134. [PMID: 27101102 PMCID: PMC4839687 DOI: 10.1371/journal.pone.0154134] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2016] [Accepted: 04/08/2016] [Indexed: 12/19/2022] Open
Abstract
Exosome is an extracellular vesicle released from multivesicular endosomes and contains micro (mi) RNAs and functional proteins derived from the donor cells. Exosomal miRNAs act as an effector during communication with appropriate recipient cells, this can aid in the utilization of the exosomes in a drug delivery system for various disorders including malignancies. Differences in the miRNA distribution pattern between exosomes and donor cells indicate the active translocation of miRNAs into the exosome cargos in a miRNA sequence-dependent manner, although the molecular mechanism is little known. In this study, we statistically analyzed the miRNA microarray data and revealed that the guanine (G)-rich sequence is a dominant feature of exosome-dominant miRNAs, across the mammalian species-specificity and the cell types. Our results provide important information regarding the potential use of exosome cargos to develop miRNA-based drugs for the treatment of human diseases.
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Affiliation(s)
- Fumiyasu Momose
- Department of Immuno-Gene Therapy, Mie University Graduate School of Medicine, Edobashi, Tsu, Mie 514–8507, Japan
- ERATO Bio-Nanotransporter Project, Japan Science and Technology Agency (JST), Tokyo 102–0076, Japan
| | - Naohiro Seo
- Department of Immuno-Gene Therapy, Mie University Graduate School of Medicine, Edobashi, Tsu, Mie 514–8507, Japan
- ERATO Bio-Nanotransporter Project, Japan Science and Technology Agency (JST), Tokyo 102–0076, Japan
- * E-mail: (NS); (HS)
| | - Yasushi Akahori
- Department of Immuno-Gene Therapy, Mie University Graduate School of Medicine, Edobashi, Tsu, Mie 514–8507, Japan
- ERATO Bio-Nanotransporter Project, Japan Science and Technology Agency (JST), Tokyo 102–0076, Japan
| | - Shin-ichi Sawada
- Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615–8510, Japan
- ERATO Bio-Nanotransporter Project, Japan Science and Technology Agency (JST), Tokyo 102–0076, Japan
| | - Naozumi Harada
- Department of Immuno-Gene Therapy, Mie University Graduate School of Medicine, Edobashi, Tsu, Mie 514–8507, Japan
- ERATO Bio-Nanotransporter Project, Japan Science and Technology Agency (JST), Tokyo 102–0076, Japan
| | - Toru Ogura
- Clinical Research Support Center, Mie University Hospital, Tsu Mie 514–8507, Japan
| | - Kazunari Akiyoshi
- Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615–8510, Japan
- ERATO Bio-Nanotransporter Project, Japan Science and Technology Agency (JST), Tokyo 102–0076, Japan
| | - Hiroshi Shiku
- Department of Immuno-Gene Therapy, Mie University Graduate School of Medicine, Edobashi, Tsu, Mie 514–8507, Japan
- ERATO Bio-Nanotransporter Project, Japan Science and Technology Agency (JST), Tokyo 102–0076, Japan
- * E-mail: (NS); (HS)
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Pastorkova Z, Skarda J, Andel J. The role of microRNA in metastatic processes of non-small cell lung carcinoma. Biomed Pap Med Fac Univ Palacky Olomouc Czech Repub 2016; 160:343-57. [PMID: 27108604 DOI: 10.5507/bp.2016.021] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2015] [Accepted: 04/08/2016] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND MicroRNAs are small non-coding one-stranded RNA molecules that play an important role in the post-transcriptional regulation of genes. Bioinformatic predictions indicate that each miRNA can regulate hundreds of target genes. MicroRNA expression can be associated with various cellular processes leading to the metastasis of malignant tumours including non-small cell lung carcinoma. This review summarizes current knowledge on the role of microRNAs in NSCLC metastasis to the brain and lymph nodes. METHODS A search of the NCBI/PubMed database for publications on expression levels and the mechanisms of microRNA action in NSCLC metastasis. RESULTS AND CONCLUSION Dysregulation of microRNAs in NSCLC can be associated with brain and lymph node metastasis. There are differences in microRNA expression profiling between NSCLC with and without metastases but it is currently not possible to reliably predict the site of metastasis in NSCLC. Based on data from RNAmicroarrays, bioinformatics analysis is able to predict the target genes of highlighted microRNAs, providing us with complex information about cancer cell features such as enhanced proliferation, migration and invasion. Such microRNAs may then be knocked-down using siRNAs or substituted with miRNA mimics. RNA microarray profiling may thus be a useful tool to select up- or down-regulated microRNAs. A number of authors suggest that microRNAs could serve as biomarkers and therapeutic targets in the treatment of NSCLC metastasis.
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Affiliation(s)
- Zuzana Pastorkova
- Department of Clinical and Molecular Pathology, Faculty of Medicine and Dentistry, Palacky University Olomouc, Czech Republic
| | - Jozef Skarda
- Department of Clinical and Molecular Pathology, Faculty of Medicine and Dentistry, Palacky University Olomouc, Czech Republic
| | - Jozef Andel
- Department of Oncology, Faculty of Medicine and Dentistry, Palacky University Olomouc, Czech Republic
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Feeding of Enterococcus faecium NCIMB 10415 Leads to Intestinal miRNA-423-5p-Induced Regulation of Immune-Relevant Genes. Appl Environ Microbiol 2016; 82:2263-2269. [PMID: 26826223 DOI: 10.1128/aem.04044-15] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2015] [Accepted: 01/20/2016] [Indexed: 11/20/2022] Open
Abstract
Probiotics are widely used in human and animal health, but little is known about the mode of action of probiotics. One possible mechanism at the molecular level could be an influence on microRNAs (miRNAs) and the related immune-relevant target genes. Here, we analyzed differential expression of miRNA and potential target genes of ileal and jejunal lymphatic tissues from Enterococcus faeciumNCIMB 10415-fed piglets versus untreated controls by using next-generation sequencing. We identified miR-423-5p as being greatly affected by the treatment group (2.32-fold;P= 0.014). Validation by reverse transcription-quantitative PCR (RT-qPCR) confirmed a significant upregulation of miR-423-5p (2.11-fold;P= 0.03) and, additionally, downregulation of the important immune-relevant immunoglobulin lambda light C region (IGLC) (0.61-fold;P= 0.03) and immunoglobulin kappa constant (IGKC) (0.69-fold;P= 0.04) target genes. Expression analysis of miR-423-5p and IGLC at different age points shows a clear anti correlated relationship. Luciferase reporter assays with a HeLa cell line verified IGLC as a target of miR-423-5p. The results provided evidence for an effect of feeding of E. faeciumon the expression of miR-423-5p and on the regulation of the IGLC gene through miR-423-5p. This might be a possible mode of action of E. faeciumon immune cell regulation in the small intestine.
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Xie S, Batnasan E, Zhang Q, Li Y. MicroRNA Expression is Altered in Granulosa Cells of Ovarian Hyperresponders. Reprod Sci 2016; 23:1001-10. [PMID: 26763554 DOI: 10.1177/1933719115625849] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Controlled ovarian stimulation plays an integral role in assisted reproduction technology, but individual patients have different responses to exogenous gonadotropins. In order to determine whether microRNAs (miRNAs) have a regulatory role in ovarian response, we profiled the expression of microRNAs in isolated ovarian granulosa cells collected from ovarian hyperresponders and normal responders using microarrays and validated the expression of selected miRNAs using quantitative polymerase chain reaction (PCR). There were 81 miRNAs differentially expressed between the 2 groups, with 45 increased and 36 decreased in the high response group. Bioinformatics analysis of these altered miRNAs and their target genes revealed some significantly enriched pathways, including regulation of the cell cycle, transcription, cell proliferation, and gonadotrophin releasing hormone signaling pathway. The expression of hsa-miR-513a-5p, hsa-miR-27b-3p, hsa-miR-19b-3p, hsa-miR-3201, hsa-miR-423-5p, hsa-miR-193b-5p, and hsa-miR-202-3p was validated by real-time PCR. Hsa-miR-423-5p, predicted to target anti-Mullerian hormone, cytochrome P450, family 19, subfamily A, polypeptide 1, methylenetetrahydrofolate reductase, progesterone receptor, and follicle stimulating hormone, β-polypeptide was found to have significantly decreased expression in the hyperresponders (P = .023). Hsa-miR-193b-5p also showed a tendency to be significantly decreased in the hyperresponders (P = .093). In conclusion, our findings provide evidence for altered miRNA expression in granulosa cells of women with ovarian hyperresponse, suggesting a role of miRNAs in regulating ovarian response to gonadotropins.
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Affiliation(s)
- Shi Xie
- Reproductive Medicine Center, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Enkhzaya Batnasan
- Reproductive Medicine Center, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Qiong Zhang
- Reproductive Medicine Center, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Yanping Li
- Reproductive Medicine Center, Xiangya Hospital, Central South University, Changsha, Hunan, China
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Abstract
BACKGROUND It has been found that microRNA-423-5p (miR423-5p) is an oncogenic factor and frequently upregulated in gastric carcinoma. However, the involvement of miR423-5p in hepatocellular carcinoma (HCC) has been rarely reported. The aim of this study was to assess whether miR423-5p is aberrantly expressed in HCC tissues, and to characterize its roles in the cancerous biology of HCC. METHODS HCC and corresponding nonmalignant tissues were obtained from 115 patients during liver transplantation to detect the expression level of miR423-5p. The miR423-5p mimic and inhibitor were transfected into LM3 cell line. Cell viability assay, cell cycle analysis, transwell invasion and migration experiments were used to evaluate the oncogenic role of miR423-5p. RESULTS miR423-5p was significantly upregulated in HCC compared with nonmalignant tissues, and this upregulation was negatively associated with recurrence-free survival. For patients beyond the Milan criteria, low expression of miR423-5p was correlated with better prognosis. Functional analysis showed that miR423-5p enhanced the proliferative, invasive and migratory capacity of HCC cells. CONCLUSIONS miR423-5p contributed to the tumorigenesis and progression of HCC. It could be a new predictor in HCC patients beyond the Milan criteria and would help to improve patient outcomes and enlarge recipient pools of liver transplantation.
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Zhang H, Qu Y, Duan J, Deng T, Liu R, Zhang L, Bai M, Li J, Zhou L, Ning T, Li H, Ge S, Li H, Ying G, Huang D, Ba Y. Integrated analysis of the miRNA, gene and pathway regulatory network in gastric cancer. Oncol Rep 2015; 35:1135-46. [PMID: 26719093 DOI: 10.3892/or.2015.4451] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2015] [Accepted: 10/26/2015] [Indexed: 11/05/2022] Open
Abstract
Gastric cancer is one of the most common malignant tumors worldwide; however, the efficacy of clinical treatment is limited. MicroRNAs (miRNAs) are a class of small non-coding RNAs that have been reported to play a key role in the development of cancer. They also provide novel candidates for targeted therapy. To date, in-depth studies on the molecular mechanisms of gastric cancer involving miRNAs are still absent. We previously reported that 5 miRNAs were identified as being significantly increased in gastric cancer, and the role of these miRNAs was investigated in the present study. By using bioinformatics tools, we found that more than 4,000 unique genes are potential downstream targets of gastric cancer miRNAs, and these targets belong to the protein class of nucleic acid binding, transcription factor, enzyme modulator, transferase and receptor. Pathway mapping showed that the targets of gastric cancer miRNAs are involved in the MAPK signaling pathway, pathways in cancer, the PI3K-Akt signaling pathway, the HTLV-1 signaling pathway and Ras signaling pathway, thus regulating cell growth, differentiation, apoptosis and metastasis. Analysis of the pathways related to miRNAs may provides potential drug targets for future therapy of gastric cancer.
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Affiliation(s)
- Haiyang Zhang
- Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin 300060, P.R. China
| | - Yanjun Qu
- Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin 300060, P.R. China
| | - Jingjing Duan
- Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin 300060, P.R. China
| | - Ting Deng
- Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin 300060, P.R. China
| | - Rui Liu
- Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin 300060, P.R. China
| | - Le Zhang
- Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin 300060, P.R. China
| | - Ming Bai
- Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin 300060, P.R. China
| | - Jialu Li
- Department of Gastroenterology, Tianjin First Center Hospital, Tianjin 300192, P.R. China
| | - Likun Zhou
- Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin 300060, P.R. China
| | - Tao Ning
- Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin 300060, P.R. China
| | - Hongli Li
- Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin 300060, P.R. China
| | - Shaohua Ge
- Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin 300060, P.R. China
| | - Hua Li
- Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin 300060, P.R. China
| | - Guoguang Ying
- Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin 300060, P.R. China
| | - Dingzhi Huang
- Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin 300060, P.R. China
| | - Yi Ba
- Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin 300060, P.R. China
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Yang Q, Zhang RW, Sui PC, He HT, Ding L. Dysregulation of non-coding RNAs in gastric cancer. World J Gastroenterol 2015; 21:10956-10981. [PMID: 26494954 PMCID: PMC4607897 DOI: 10.3748/wjg.v21.i39.10956] [Citation(s) in RCA: 57] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/28/2015] [Revised: 08/28/2015] [Accepted: 09/15/2015] [Indexed: 02/07/2023] Open
Abstract
Gastric cancer (GC) is one of the most common cancers in the world and a significant threat to the health of patients, especially those from China and Japan. The prognosis for patients with late stage GC receiving the standard of care treatment, including surgery, chemotherapy and radiotherapy, remains poor. Developing novel treatment strategies, identifying new molecules for targeted therapy, and devising screening techniques to detect this cancer in its early stages are needed for GC patients. The discovery of non-coding RNAs (ncRNAs), primarily microRNAs (miRNAs) and long non-coding RNAs (lncRNAs), helped to elucidate the mechanisms of tumorigenesis, diagnosis and treatment of GC. Recently, significant research has been conducted on non-coding RNAs and how the regulatory dysfunction of these RNAs impacts the tumorigenesis of GC. In this study, we review papers published in the last five years concerning the dysregulation of non-coding RNAs, especially miRNAs and lncRNAs, in GC. We summarize instances of aberrant expression of the ncRNAs in GC and their effect on survival-related events, including cell cycle regulation, AKT signaling, apoptosis and drug resistance. Additionally, we evaluate how ncRNA dysregulation affects the metastatic process, including the epithelial-mesenchymal transition, stem cells, transcription factor activity, and oncogene and tumor suppressor expression. Lastly, we determine how ncRNAs affect angiogenesis in the microenvironment of GC. We further discuss the use of ncRNAs as potential biomarkers for use in clinical screening, early diagnosis and prognosis of GC. At present, no ideal ncRNAs have been identified as targets for the treatment of GC.
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Huang YK, Yu JC. Circulating microRNAs and long non-coding RNAs in gastric cancer diagnosis: An update and review. World J Gastroenterol 2015; 21:9863-9886. [PMID: 26379393 PMCID: PMC4566381 DOI: 10.3748/wjg.v21.i34.9863] [Citation(s) in RCA: 94] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/03/2015] [Revised: 05/15/2015] [Accepted: 07/18/2015] [Indexed: 02/06/2023] Open
Abstract
Gastric cancer (GC) is the fourth most common cancer and the third leading cause of cancer mortality worldwide. MicroRNAs (miRNAs) and long non-coding RNAs (lncRNAs) are the most popular non-coding RNAs in cancer research. To date, the roles of miRNAs and lncRNAs have been extensively studied in GC, suggesting that miRNAs and lncRNAs represent a vital component of tumor biology. Furthermore, circulating miRNAs and lncRNAs are found to be dysregulated in patients with GC compared with healthy individuals. Circulating miRNAs and lncRNAs may function as promising biomarkers to improve the early detection of GC. Multiple possibilities for miRNA secretion have been elucidated, including active secretion by microvesicles, exosomes, apoptotic bodies, high-density lipoproteins and protein complexes as well as passive leakage from cells. However, the mechanism underlying lncRNA secretion and the functions of circulating miRNAs and lncRNAs have not been fully illuminated. Concurrently, to standardize results of global investigations of circulating miRNAs and lncRNAs biomarker studies, several recommendations for pre-analytic considerations are put forward. In this review, we summarize the known circulating miRNAs and lncRNAs for GC diagnosis. The possible mechanism of miRNA and lncRNA secretion as well as methodologies for identification of circulating miRNAs and lncRNAs are also discussed. The topics covered here highlight new insights into GC diagnosis and screening.
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Permuth-Wey J, Fulp WJ, Reid BM, Chen Z, Georgeades C, Cheng JQ, Magliocco A, Chen DT, Lancaster JM. STAT3 polymorphisms may predict an unfavorable response to first-line platinum-based therapy for women with advanced serous epithelial ovarian cancer. Int J Cancer 2015; 138:612-9. [PMID: 26264211 DOI: 10.1002/ijc.29799] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2015] [Revised: 07/30/2015] [Accepted: 07/31/2015] [Indexed: 01/09/2023]
Abstract
Cancer stem cells (CSC) contribute to epithelial ovarian cancer (EOC) progression and therapeutic response. We hypothesized that germline single nucleotide polymorphisms (SNPs) in CSC-related genes may predict an initial therapeutic response for women newly diagnosed with EOC. A nested case-control design was used to study 361 women with advanced-stage serous EOC treated with surgery followed by first-line platinum-based combination therapy at Moffitt Cancer Center or as part of The Cancer Genome Atlas Study. "Cases" included 102 incomplete responders (IRs) and "controls" included 259 complete clinical responders (CRs) to therapy. Using Illumina genotyping arrays and imputation, DNA samples were evaluated for 5,509 SNPs in 24 ovarian CSC-related genes. We also evaluated the overall significance of each CSC gene using the admixture maximum likelihood (AML) test, and correlated genotype with EOC tumor tissue expression. The strongest SNP-level associations with an IR to therapy were identified for correlated (r(2) > 0.80) SNPs within signal transducer and activator of transcription 3 (STAT3) [odds ratio (OR), 2.24; 95% confidence interval (CI), 1.32-3.78; p = 0.0027], after adjustment for age, population stratification, grade and residual disease. At the gene level, STAT3 was significantly associated with an IR to therapy (pAML = 0.006). rs1053004, a STAT3 SNP in a putative miRNA-binding site, was associated with STAT3 expression (p = 0.057). This is the first study to identify germline STAT3 variants as independent predictors of an unfavorable therapeutic response for EOC patients. Findings suggest that STAT3 genotype may identify high-risk women likely to respond more favorably to novel therapeutic combinations that include STAT3 inhibitors.
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Affiliation(s)
| | - William J Fulp
- Statistical Center for HIV/AIDS Research and Prevention (SCHARP), Fred Hutchinson Cancer Research Center, Seattle, WA
| | - Brett M Reid
- Department of Cancer Epidemiology, Moffitt Cancer Center, Tampa, FL
| | - Zhihua Chen
- Department of Biostatistics and Bioinformatics, Moffitt Cancer Center, Tampa, FL
| | | | - Jin Q Cheng
- Department of Molecular Oncology, Moffitt Cancer Center, Tampa, FL
| | | | - Dung-Tsa Chen
- Department of Biostatistics and Bioinformatics, Moffitt Cancer Center, Tampa, FL
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Xiao P, Ling H, Lan G, Liu J, Hu H, Yang R. Trefoil factors: Gastrointestinal-specific proteins associated with gastric cancer. Clin Chim Acta 2015; 450:127-34. [PMID: 26265233 DOI: 10.1016/j.cca.2015.08.004] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2015] [Revised: 08/07/2015] [Accepted: 08/07/2015] [Indexed: 12/11/2022]
Abstract
Trefoil factor family (TFF), composed of TFF1, TFF2, and TFF3, is a cluster of secreted peptides characterized by trefoil domain (s) and C-terminal dimerization domain. TFF1, a gastric tumor suppressor, is a single trefoil peptide originally detected in breast cancer cell lines but expressed mainly in the stomach; TFF2, a candidate of gastric cancer suppressor with two trefoil domains, is abundant in the stomach and duodenal Brunner's glands; and TFF3 is another single trefoil peptide expressed throughout the intestine which can promote the development of gastric carcinoma. According to multiple studies, TFFs play a regulatory function in the mammals' digestive system, namely in mucosal protection and epithelial cell reconstruction, tumor suppression or promotion, signal transduction and the regulation of proliferation and apoptosis. Action mechanisms of TFFs remain unresolved, but the recent demonstration of a GKN (gastrokine) 2-TFF1 heterodimer implicates structural and functional interplay with gastrokines. This review aims to encapsulate the structural and biological characteristics of TFF.
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Affiliation(s)
- Ping Xiao
- Key Laboratory of Tumor Cellular and Molecular Pathology, University of South China, College of Hunan Province, Cancer Research Institute, Hengyang, Hunan 421001, PR China; Center for Gastric Cancer Research of Hunan Province, University of South China, Hengyang, Hunan 421001, PR China
| | - Hui Ling
- Key Laboratory of Tumor Cellular and Molecular Pathology, University of South China, College of Hunan Province, Cancer Research Institute, Hengyang, Hunan 421001, PR China; Center for Gastric Cancer Research of Hunan Province, University of South China, Hengyang, Hunan 421001, PR China.
| | - Gang Lan
- Key Laboratory for Atherosclerology of Hunan Province, Cardiovascular Research Institute, University of South China, Hengyang, Hunan 421001, PR China
| | - Jiao Liu
- Key Laboratory of Tumor Cellular and Molecular Pathology, University of South China, College of Hunan Province, Cancer Research Institute, Hengyang, Hunan 421001, PR China; Center for Gastric Cancer Research of Hunan Province, University of South China, Hengyang, Hunan 421001, PR China
| | - Haobin Hu
- Key Laboratory of Tumor Cellular and Molecular Pathology, University of South China, College of Hunan Province, Cancer Research Institute, Hengyang, Hunan 421001, PR China; Center for Gastric Cancer Research of Hunan Province, University of South China, Hengyang, Hunan 421001, PR China
| | - Ruirui Yang
- Key Laboratory of Tumor Cellular and Molecular Pathology, University of South China, College of Hunan Province, Cancer Research Institute, Hengyang, Hunan 421001, PR China; Center for Gastric Cancer Research of Hunan Province, University of South China, Hengyang, Hunan 421001, PR China
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65
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Remon J, Alvarez-Berdugo D, Majem M, Moran T, Reguart N, Lianes P. miRNA-197 and miRNA-184 are associated with brain metastasis in EGFR-mutant lung cancers. Clin Transl Oncol 2015. [DOI: 10.1007/s12094-015-1347-2] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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66
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Ishimoto T, Baba H, Izumi D, Sugihara H, Kurashige J, Iwatsuki M, Tan P. Current perspectives toward the identification of key players in gastric cancer microRNA dysregulation. Int J Cancer 2015; 138:1337-49. [DOI: 10.1002/ijc.29627] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2015] [Accepted: 05/27/2015] [Indexed: 12/21/2022]
Affiliation(s)
- Takatsugu Ishimoto
- Cancer and Stem Cell Biology; Duke-NUS Graduate Medical School Singapore; Singapore Singapore
- Department of Gastroenterological Surgery, Graduate School of Medical Science; Kumamoto University; Kumamoto Japan
| | - Hideo Baba
- Department of Gastroenterological Surgery, Graduate School of Medical Science; Kumamoto University; Kumamoto Japan
| | - Daisuke Izumi
- Department of Gastroenterological Surgery, Graduate School of Medical Science; Kumamoto University; Kumamoto Japan
| | - Hidetaka Sugihara
- Department of Gastroenterological Surgery, Graduate School of Medical Science; Kumamoto University; Kumamoto Japan
| | - Junji Kurashige
- Department of Gastroenterological Surgery, Graduate School of Medical Science; Kumamoto University; Kumamoto Japan
| | - Masaaki Iwatsuki
- Department of Gastroenterological Surgery, Graduate School of Medical Science; Kumamoto University; Kumamoto Japan
| | - Patrick Tan
- Cancer and Stem Cell Biology; Duke-NUS Graduate Medical School Singapore; Singapore Singapore
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67
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Zhao H, Gao A, Zhang Z, Tian R, Luo A, Li M, Zhao D, Fu L, Fu L, Dong JT, Zhu Z. Genetic analysis and preliminary function study of miR-423 in breast cancer. Tumour Biol 2015; 36:4763-71. [PMID: 25663458 DOI: 10.1007/s13277-015-3126-7] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2014] [Accepted: 01/19/2015] [Indexed: 10/24/2022] Open
Abstract
Common genetic variants (single nucleotide polymorphisms SNPs) in microRNA (miRNA) genes may alter their maturation or expression and play a role in the formation of human cancer. Recently, the association between the SNP rs6505162 in pre-miR-423 and cancer risk has been frequently evaluated in diverse populations and in a range of cancers. In this study, we determined the genotypes of SNP rs6505162 in 5 matched cell lines (breast cancer cell lines and their corresponding peripheral blood cell lines) and 114 matched clinical specimens (clinical breast carcinoma specimens and their corresponding normal tissues), compared the processing efficiency of pri-miRNA to mature forms between pre-miR-423-12C (wild-type) and pre-miR-423-12A (mutant-type) expression vectors, and evaluated the function of miR-423 on cell proliferation. Our data showed that two out of five breast cancer cell lines and 8.77 % (10/114) of tumors underwent somatic mutations of the rs6505162 SNP, and somatic mutation state was significantly correlated with the expression of clinicopathologic variables, proliferating cell nuclear antigen (PCNA) and mutant p53. The pre-miR-423-12C SNP blocked the endogenous processing of pri-miR-423 to its two mature miRNAs. Interestingly, selected pre-miR-423-12C stable cell population had lower proliferation ability than pre-miR-423-12A stable cell population. Moreover, miR-423 promoted cell proliferation in breast cancer cell lines through its miR-423-3p strand, not miR-423-5p. Taken together, these results suggest that the SNP rs6505162 in pre-miR-423 affects the mature miR expression, and miR-423 plays a potentially oncogenic role in breast tumorigenesis.
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Affiliation(s)
- Huanhuan Zhao
- State Key Laboratory of Medicinal Chemical Biology, Department of Genetics and Cell Biology, College of Life Sciences, Nankai University, Tianjin, China
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Shi Y, Chen GB, Huang QW, Chen X, Liu JJ, Xu W, Huang XX, Liu YP, Xiao CX, Wu DC, Guleng B, Ren JL. miR218-5p regulates the proliferation of gastric cancer cells by targeting TFF1 in an Erk1/2-dependent manner. Biochim Biophys Acta Mol Basis Dis 2015; 1852:970-9. [PMID: 25652124 DOI: 10.1016/j.bbadis.2015.01.016] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2014] [Revised: 01/19/2015] [Accepted: 01/23/2015] [Indexed: 01/06/2023]
Abstract
Trefoil factor 1 (TFF1), a member of the trefoil peptide family, is not only associated with mucosal protection and restoration but is also correlated with tumorigenesis of the gastrointestinal tract. In an early study, we performed sequence analysis and identified one potential miR423-5p binding site within the 3'-untranslated region of TFF1 using microRNA target prediction tools. In the current study, we demonstrated that the coding DNA region within TFF1 is also a candidate for miR218-5p targeting. We used real-time PCR and in situ hybridization to analyze the correlation between miR218-5p and TFF1 expression in tumor lesions and paracancerous tissue in gastric cancer (GC) samples. Additionally, endogenous and exogenous TFF1 were suppressed by miR218-5p in gastric cancer cells and influenced the progression of GC in an Erk1/2-dependent manner. Targeting miR218-5p may provide a novel strategy for the treatment of GC.
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Affiliation(s)
- Ying Shi
- Department of Gastroenterology, Zhongshan Hospital affiliated to Xiamen University, 201 Hubin South Road, Xiamen 361004, Fujian, China
| | - Guo-Bin Chen
- Department of Gastroenterology, Zhongshan Hospital affiliated to Xiamen University, 201 Hubin South Road, Xiamen 361004, Fujian, China; Department of Gastroenterology, Xiamen Zhongshan Teaching Hospital of Fujian Medical University, Xiamen 361004, Fujian, China
| | - Qing-Wen Huang
- Department of Gastroenterology, Zhongshan Hospital affiliated to Xiamen University, 201 Hubin South Road, Xiamen 361004, Fujian, China
| | - Xu Chen
- Department of Gastroenterology, Zhongshan Hospital affiliated to Xiamen University, 201 Hubin South Road, Xiamen 361004, Fujian, China
| | - Jing-Jing Liu
- Department of Gastroenterology, Zhongshan Hospital affiliated to Xiamen University, 201 Hubin South Road, Xiamen 361004, Fujian, China
| | - Wei Xu
- Department of Gastroenterology, Zhongshan Hospital affiliated to Xiamen University, 201 Hubin South Road, Xiamen 361004, Fujian, China
| | - Xiao-Xiao Huang
- Department of Gastroenterology, Zhongshan Hospital affiliated to Xiamen University, 201 Hubin South Road, Xiamen 361004, Fujian, China
| | - Yun-Peng Liu
- Department of Gastroenterology, Zhongshan Hospital affiliated to Xiamen University, 201 Hubin South Road, Xiamen 361004, Fujian, China
| | - Chuan-Xing Xiao
- Department of Gastroenterology, Zhongshan Hospital affiliated to Xiamen University, 201 Hubin South Road, Xiamen 361004, Fujian, China
| | - Deng-Chyang Wu
- Division of Gastroenterology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung City 807, Taiwan; Division of Internal Medicine, Kaohsiung Municipal Hsiao-Kang Hospital, Kaohsiung City 812, Taiwan
| | - Bayasi Guleng
- Department of Gastroenterology, Zhongshan Hospital affiliated to Xiamen University, 201 Hubin South Road, Xiamen 361004, Fujian, China; Faculty of Clinical Medicine, Medical College of Xiamen University, 168 University Road, Xiamen 361005, Fujian, China; State Key Laboratory of Cellular Stress Biology, Xiamen University, 168 University Road, Xiamen 361005, Fujian, China.
| | - Jian-Lin Ren
- Department of Gastroenterology, Zhongshan Hospital affiliated to Xiamen University, 201 Hubin South Road, Xiamen 361004, Fujian, China.
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Xu X, Wang W, Su N, Zhu X, Yao J, Gao W, Hu Z, Sun Y. miR-374a promotes cell proliferation, migration and invasion by targeting SRCIN1 in gastric cancer. FEBS Lett 2014; 589:407-13. [PMID: 25554419 DOI: 10.1016/j.febslet.2014.12.027] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2014] [Revised: 12/11/2014] [Accepted: 12/18/2014] [Indexed: 12/25/2022]
Abstract
MicroRNAs (miRNAs) play a prominent role in gastric cancer (GC) initiation and progression. In this study, we found that miR-374a expression was up-regulated in human GC cell lines and tissues. Inhibition of miR-374a suppressed GC cell proliferation, migration and invasion in vitro and slowed tumor growth in vivo. SRC kinase signaling inhibitor 1 (SRCIN1) was identified as a direct target of miR-374a. Silencing of SRCIN1 significantly enhanced cell proliferation, migration and invasion, whereas SRCIN1 reintroduction partially abrogated the oncogenic effects of miR-374a. Taken together, these findings suggest that miR-374a functions as a candidate oncogene in GC by directly targeting SRCIN1. miR-374a may therefore be useful as a promising therapeutic target for malignant GC.
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Affiliation(s)
- Xinyun Xu
- Department of General Surgery, Shanghai Changzheng Hospital, Second Military Medical University, Shanghai, PR China
| | - Weijun Wang
- Department of General Surgery, Shanghai Changzheng Hospital, Second Military Medical University, Shanghai, PR China
| | - Ning Su
- Department of General Surgery, Shanghai Changzheng Hospital, Second Military Medical University, Shanghai, PR China
| | - Xujun Zhu
- Department of General Surgery, Shanghai Changzheng Hospital, Second Military Medical University, Shanghai, PR China
| | - Jun Yao
- Department of General Surgery, Shanghai Changzheng Hospital, Second Military Medical University, Shanghai, PR China
| | - Wenchao Gao
- Department of General Surgery, Shanghai Changzheng Hospital, Second Military Medical University, Shanghai, PR China
| | - Zhiqian Hu
- Department of General Surgery, Shanghai Changzheng Hospital, Second Military Medical University, Shanghai, PR China
| | - Yanping Sun
- Department of General Surgery, Shanghai Changzheng Hospital, Second Military Medical University, Shanghai, PR China.
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