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Fathi D, Elballal MS, Elesawy AE, Abulsoud AI, Elshafei A, Elsakka EG, Ismail A, El-Mahdy HA, Elrebehy MA, Doghish AS. An emphasis on the interaction of signaling pathways highlights the role of miRNAs in the etiology and treatment resistance of gastric cancer. Life Sci 2023; 322:121667. [PMID: 37023952 DOI: 10.1016/j.lfs.2023.121667] [Citation(s) in RCA: 40] [Impact Index Per Article: 40.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Revised: 04/01/2023] [Accepted: 04/03/2023] [Indexed: 04/07/2023]
Abstract
Gastric cancer (GC) is 4th in incidence and mortality rates globally. Several genetic and epigenetic factors, including microRNAs (miRNAs), affect its initiation and progression. miRNAs are short chains of nucleic acids that can regulate several cellular processes by controlling their gene expression. So, dysregulation of miRNAs expressions is associated with GC initiation, progression, invasion capacity, apoptosis evasions, angiogenesis, promotion and EMT enhancement. Of important pathways in GC and controlled by miRNAs are Wnt/β-catenin signaling, HMGA2/mTOR/P-gp, PI3K/AKT/c-Myc, VEGFR and TGFb signaling. Hence, this review was conducted to review an updated view of the role of miRNAs in GC pathogenesis and their modulatory effects on responses to different GC treatment modalities.
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MiR-20a-5p Negatively Regulates NR4A3 to Promote Metastasis in Bladder Cancer. JOURNAL OF ONCOLOGY 2021; 2021:1377989. [PMID: 34925506 PMCID: PMC8677415 DOI: 10.1155/2021/1377989] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/21/2021] [Revised: 10/20/2021] [Accepted: 10/22/2021] [Indexed: 02/05/2023]
Abstract
Metastasis is the leading cause of death in cancer patients. Therefore, the prediction and treatment of metastasis are critical in improving the survival of patients with bladder cancer. In this study, we aimed to investigate the role of miR-20a-5p and NR4A3 in bladder cancer and the regulatory relationship between them. The high expression of miR-20a-5p in the bladder cancer (BCa) tissues and cells was determined by qRT-PCR. Exogenous miR-20a-5p overexpression promoted the proliferation, migration, and invasion of BCa cells. MiR-20a-5p inhibition inhibited the BCa cell proliferation, invasion, and migration. NR4A3 was proved to be the target gene of miR-20a-5p by the double luciferase reporter assay. In addition, the reduction of NR4A3 could promote the proliferation, invasion, and clonal formation of the bladder cancer cells 5637 and T24. NR4A3 overexpression could reverse the carcinogenic effect of miR-20a. We further confirmed that the oncogenic effect of miR-20a was achieved by promoting EMT in tumor cells. MiR-20a-5p promoted the growth and metastasis of the bladder cancer cells by inhibiting the expression of the tumor suppressor gene NR4A3 and played a carcinogenic role in BCa. Thus, miR-20a-5p may become a potential therapeutic target for BCa treatment.
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Peng CW, Yue LX, Zhou YQ, Tang S, Kan C, Xia LM, Yang F, Wang SY. miR-100-3p inhibits cell proliferation and induces apoptosis in human gastric cancer through targeting to BMPR2. Cancer Cell Int 2019; 19:354. [PMID: 31889906 PMCID: PMC6935118 DOI: 10.1186/s12935-019-1060-2] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2019] [Accepted: 12/05/2019] [Indexed: 02/06/2023] Open
Abstract
Background miR-100 has been reported to closely associate with gastric cancer (GC) initiation and progression. However, the underlying mechanism of miR-100-3p in GC is still largely unclear. In this study, we intend to study how miR-100-3p regulates GC malignancy. Methods The expression levels of miR-100-3p in vitro (GES-1 and GC cell lines) and in vivo (cancerous and normal gastric tissues) were examined by quantitative real-time PCR (qRT-PCR). MTT and PE/Annexin V analyses were responsible for measurement of the effects of miR-100-3p on GC cell proliferation and apoptosis. Transwell assay with or without matrigel was used to examine the capacity of migration and invasion in GC cells. The interaction of miR-100-3p with bone morphogenetic protein receptor 2 (BMPR2) was confirmed through transcriptomics analysis and luciferase reporter assay. qRT-PCR and Western blot analyses were applied to determine the expression of ERK/AKT and Bax/Bcl2/Caspase3, which were responsible for the dysfunction of miR-100-3p. Results miR-100-3p was down-regulated in GC cell lines and cancerous tissues, and was negatively correlated with BMPR2. Loss of miR-100-3p promoted tumor growth and BMPR2 expression. Consistently, the effects of miR-100-3p inhibition on GC cells were partially neutralized by knockdown of BMPR2. Over-expression of miR-100-3p simultaneously inhibited tumor growth and down-regulated BMPR2 expression. Consistently, over-expression of BMPR2 partially neutralized the effects of miR-100-3p over-expression. Further study demonstrated that BMPR2 mediated the effects downstream of miR-100-3p, which might indirectly regulate ERK/AKT and Bax/Bcl2/Caspase3 signaling pathways. Conclusion miR-100-3p acted as a tumor-suppressor miRNA that down-regulated BMPR2, which consequently inhibited the ERK/AKT signaling and activated Bax/Bcl2/Caspase3 signaling. This finding provided novel insights into GC and could contribute to identify a new diagnostic and therapeutic target.
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Affiliation(s)
- Chun-Wei Peng
- Department of Pathophysiology, School of Basic Medicine, Anhui Medical University, 81 MeiShan Road, Hefei, 230032 China
| | - Ling-Xiao Yue
- Department of Pathophysiology, School of Basic Medicine, Anhui Medical University, 81 MeiShan Road, Hefei, 230032 China
| | - Yuan-Qin Zhou
- Department of Pathophysiology, School of Basic Medicine, Anhui Medical University, 81 MeiShan Road, Hefei, 230032 China
| | - Sai Tang
- Department of Pathophysiology, School of Basic Medicine, Anhui Medical University, 81 MeiShan Road, Hefei, 230032 China
| | - Chen Kan
- Department of Pathophysiology, School of Basic Medicine, Anhui Medical University, 81 MeiShan Road, Hefei, 230032 China
| | - Lei-Ming Xia
- Department of Pathophysiology, School of Basic Medicine, Anhui Medical University, 81 MeiShan Road, Hefei, 230032 China
| | - Fan Yang
- Department of Pathophysiology, School of Basic Medicine, Anhui Medical University, 81 MeiShan Road, Hefei, 230032 China
| | - Si-Ying Wang
- Department of Pathophysiology, School of Basic Medicine, Anhui Medical University, 81 MeiShan Road, Hefei, 230032 China
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Choi RSY, Lai WYX, Lee LTC, Wong WLC, Pei XM, Tsang HF, Leung JJ, Cho WCS, Chu MKM, Wong EYL, Wong SCC. Current and future molecular diagnostics of gastric cancer. Expert Rev Mol Diagn 2019; 19:863-874. [PMID: 31448971 DOI: 10.1080/14737159.2019.1660645] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Introduction: Gastric cancer (GC) is the fifth most common cancer and confers the second-highest mortality among other cancers. Improving the survival rates of GC patients requires prompt and accurate diagnosis and effective treatment which is often preceded by the poorly understood pathogenic mechanisms. Area covered: This literature review aims to summarize current understanding of genetic and molecular alterations that promote carcinogenesis including (1) activation of oncogenes, (2) overexpression of growth factors, receptors and matrix metalloproteinases, (3) inactivation of tumor suppressor genes, DNA repair genes, and cell adhesion molecules and (4) alterations of cell-cycle regulators that regulate biological characteristics of cancer cells. Moreover, the significance of molecular biomarkers such as micro-RNAs (miRNAs) and long non-coding RNAs (lncRNAs) and advanced molecular techniques including droplet digital polymerase chain reaction (ddPCR), quantitative PCR (qPCR) and next-generation sequencing (NGS) are also discussed. Expert opinion: A GC-specific panel of biomarkers based on the NGS or ddPCR has the potential for diagnosis, prognosis, and monitoring treatment response in GC patients. Despite the requirements for validation in larger population in clinical studies, race-specific differences in the gene panel have also to be examined by performing the clinical trials in subjects with different races.
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Affiliation(s)
- Rachel Sin-Yu Choi
- Department of Health Technology and Informatics, Faculty of Health and Social Sciences, Hong Kong Polytechnic University , Hong Kong , Hong Kong Special Administrative Region, China
| | - Wing Yin Xenia Lai
- Department of Health Technology and Informatics, Faculty of Health and Social Sciences, Hong Kong Polytechnic University , Hong Kong , Hong Kong Special Administrative Region, China
| | - Lok Ting Claire Lee
- Department of Health Technology and Informatics, Faculty of Health and Social Sciences, Hong Kong Polytechnic University , Hong Kong , Hong Kong Special Administrative Region, China
| | - Wing Lam Christa Wong
- Department of Health Technology and Informatics, Faculty of Health and Social Sciences, Hong Kong Polytechnic University , Hong Kong , Hong Kong Special Administrative Region, China
| | - Xiao Meng Pei
- Department of Health Technology and Informatics, Faculty of Health and Social Sciences, Hong Kong Polytechnic University , Hong Kong , Hong Kong Special Administrative Region, China
| | - Hin Fung Tsang
- Department of Health Technology and Informatics, Faculty of Health and Social Sciences, Hong Kong Polytechnic University , Hong Kong , Hong Kong Special Administrative Region, China
| | - Joel Johnson Leung
- Department of Health Technology and Informatics, Faculty of Health and Social Sciences, Hong Kong Polytechnic University , Hong Kong , Hong Kong Special Administrative Region, China
| | - William Chi Shing Cho
- Department of Clinical Oncology, Queen Elizabeth Hospital , Kowloon , Hong Kong Special Administrative Region, China
| | - Man Kee Maggie Chu
- Division of Life Science, The Hong Kong University of Science and Technology , Clear Water Bay , Hong Kong Special Administrative Region, China
| | - Elaine Yue Ling Wong
- Department of Health Technology and Informatics, Faculty of Health and Social Sciences, Hong Kong Polytechnic University , Hong Kong , Hong Kong Special Administrative Region, China
| | - Sze Chuen Cesar Wong
- Department of Health Technology and Informatics, Faculty of Health and Social Sciences, Hong Kong Polytechnic University , Hong Kong , Hong Kong Special Administrative Region, China
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Guo L, Zhu Y, Li L, Zhou S, Yin G, Yu G, Cui H. Breast cancer cell-derived exosomal miR-20a-5p promotes the proliferation and differentiation of osteoclasts by targeting SRCIN1. Cancer Med 2019; 8:5687-5701. [PMID: 31385464 PMCID: PMC6745844 DOI: 10.1002/cam4.2454] [Citation(s) in RCA: 79] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2019] [Revised: 06/22/2019] [Accepted: 07/15/2019] [Indexed: 12/17/2022] Open
Abstract
Bone metastasis of breast cancer makes patients suffer from pain, fractures, spinal cord compression, and hypercalcemia, and is almost incurable. Although the mechanisms of bone metastasis in breast cancers have been studied intensively, novel specific target will be helpful to the development of new therapeutic strategy of breast cancer. Herein, we focused on the microRNA of tumor cell-derived exosomes to investigate the communication between the bone microenvironment and tumor cells. The expression of miR-20a-5p in the primary murine bone marrow macrophages (BMMs), MCF-10A, MCF-7, and MDA-MB-231 cell lines, as well as the cell-derived exosomes were assessed by qRT-PCR. Transwell assays were used to evaluate the effects of miR-20a-5p on tumor cell migration and invasion. The expression of exosomes marker including CD63and TSG101 was detected by Western Blot. Cell cycle distribution of BMMs was analyzed by flow cytometry. 3-UTR luciferase reporter assays were used to validate the putative binding between miR-20a-5p and SRCIN1. MiR-20a-5p was highly expressed in breast tumor tissues and the exosomes of MDA-MB-231 cells. MiR-20a-5p promoted migration and invasion in MDA-MB-231 cells, and the proliferation and differentiation of osteoclasts. MDA-MB-231 cell-derived exosomes transferred miR-20a-5p to BMMs and facilitated the osteoclastogenesis via targeting SRCIN1. The present work provides evidence that miR-20a-5p transferred from breast cancer cell-derived exosomes promotes the proliferation and differentiation of osteoclasts by targeting SRCIN1, providing scientific foundations for the development of exosome or miR-20a-5p targeted therapeutic intervention in breast cancer progression.
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Affiliation(s)
- Ling Guo
- Department of Pathology, The Affiliated Second Hospital Mudanjiang Medical University, Mudanjiang, Heilongjiang, China
| | - Ye Zhu
- Department of Obstetrics, Gynecology Peking University People's Hospital, Beijing, China
| | - Liandi Li
- Department of Anesthesiology, The Affiliated Second Hospital Mudanjiang Medical University, Mudanjiang, Heilongjiang, China
| | - Shufen Zhou
- Department of Gerontology, The Affiliated Second Hospital Mudanjiang Medical University, Mudanjiang, Heilongjiang, China
| | - Guohua Yin
- Department of Nursing, The Affiliated Second Hospital Mudanjiang Medical University, Mudanjiang, Heilongjiang, China
| | - Guanghao Yu
- Department of Medical Imaging, Mudanjiang Medical University, Mudanjiang, Heilongjiang, China
| | - Hujun Cui
- Department of Oncology, The Affiliated Hongqi Hospital, Mudanjiang Medical University, Mudanjiang, Heilongjiang, China
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Solé C, Tramonti D, Schramm M, Goicoechea I, Armesto M, Hernandez LI, Manterola L, Fernandez-Mercado M, Mujika K, Tuneu A, Jaka A, Tellaetxe M, Friedländer MR, Estivill X, Piazza P, Ortiz-Romero PL, Middleton MR, Lawrie CH. The Circulating Transcriptome as a Source of Biomarkers for Melanoma. Cancers (Basel) 2019; 11:cancers11010070. [PMID: 30634628 PMCID: PMC6356785 DOI: 10.3390/cancers11010070] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2018] [Revised: 01/02/2019] [Accepted: 01/04/2019] [Indexed: 12/18/2022] Open
Abstract
The circulating transcriptome is a valuable source of cancer biomarkers, which, with the exception of microRNAs (miRNAs), remains relatively unexplored. To elucidate which RNAs are present in plasma from melanoma patients and which could be used to distinguish cancer patients from healthy individuals, we used next generation sequencing (NGS), and validation was carried out by qPCR and/or ddPCR. We identified 442 different microRNAs in samples, eleven of which were differentially expressed (p < 0.05). Levels of miR-134-5p and miR-320a-3p were significantly down-regulated (p < 0.001) in melanoma samples (n = 96) compared to healthy controls (n = 28). Differentially expressed protein-encoding mRNA 5'-fragments were enriched for the angiopoietin, p21-activated kinase (PAK), and EIF2 pathways. Levels of ATM1, AMFR, SOS1, and CD109 gene fragments were up-regulated (p < 0.001) in melanoma samples (n = 144) compared to healthy controls (n = 41) (AUC = 0.825). Over 40% of mapped reads were YRNAs, a class of non-coding RNAs that to date has been little explored. Expression levels of RNY3P1, RNY4P1, and RNY4P25 were significantly higher in patients with stage 0 disease than either healthy controls or more advanced stage disease (p < 0.001). In conclusion, we have identified a number of novel RNA biomarkers, which, most importantly, we validated in multi-center retrospective and prospective cohorts, suggesting potential diagnostic use of these RNA species.
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Affiliation(s)
- Carla Solé
- Molecular Oncology group, Biodonostia Research Institute, San Sebastián 20012, Spain.
| | - Daniela Tramonti
- Department of Oncology, University of Oxford, Oxford OX3 9DU, UK.
| | - Maike Schramm
- Molecular Oncology group, Biodonostia Research Institute, San Sebastián 20012, Spain.
- Faculty of Biosciences, University of Heidelberg, Heidelberg 69120, Germany.
| | - Ibai Goicoechea
- Molecular Oncology group, Biodonostia Research Institute, San Sebastián 20012, Spain.
| | - María Armesto
- Molecular Oncology group, Biodonostia Research Institute, San Sebastián 20012, Spain.
| | - Luiza I Hernandez
- Molecular Oncology group, Biodonostia Research Institute, San Sebastián 20012, Spain.
| | - Lorea Manterola
- Molecular Oncology group, Biodonostia Research Institute, San Sebastián 20012, Spain.
| | | | - Karmele Mujika
- Onkologikoa-Oncology Institute Gipuzkoa, Gipuzkoa 20012, Spain.
| | - Anna Tuneu
- Department of Dermatology, Hospital Universitario de Donostia, San Sebastian 20012, Spain.
| | - Ane Jaka
- Department of Dermatology, Hospital Universitario de Donostia, San Sebastian 20012, Spain.
| | - Maitena Tellaetxe
- Molecular Oncology group, Biodonostia Research Institute, San Sebastián 20012, Spain.
| | - Marc R Friedländer
- Genomics and Disease group, Centre for Genomic Regulation (CRG), Barcelona 08003, Spain.
- Universitat Pompeu Fabra (UPF), Barcelona 08002, Spain.
- Centro de Investigación Biomédica en Red Epidemiología y Salud Pública (CIBERESP), Barcelona 08002, Spain.
- Hospital del Mar Research Institute (IMIM), Barcelona 08003, Spain.
- Science for Life Laboratory, The Wenner-Gren Institute, Stockholm University, Stockholm SE-106 9, Sweden.
| | - Xavier Estivill
- Genomics and Disease group, Centre for Genomic Regulation (CRG), Barcelona 08003, Spain.
- Universitat Pompeu Fabra (UPF), Barcelona 08002, Spain.
- Centro de Investigación Biomédica en Red Epidemiología y Salud Pública (CIBERESP), Barcelona 08002, Spain.
- Hospital del Mar Research Institute (IMIM), Barcelona 08003, Spain.
| | - Paolo Piazza
- Wellcome Trust Centre for Human Genetics, University of Oxford, Oxford OX3 7BN, UK.
- Imperial BRC Genomics Facility, Imperial College London, London SW7 2AZ, UK.
| | - Pablo L Ortiz-Romero
- Department of Dermatology, 12 de Octubre Hospital, Madrid 28041, Spain.
- Medical School, Universidad Complutense, Institute i+12, Centro de Investigación Biomédica en Red en Oncologia (CIBERONC), Madrid 28040, Spain.
| | - Mark R Middleton
- Department of Oncology, University of Oxford, Oxford OX3 9DU, UK.
| | - Charles H Lawrie
- Molecular Oncology group, Biodonostia Research Institute, San Sebastián 20012, Spain.
- Radcliffe Department of Medicine, University of Oxford, Oxford OX3 9DU, UK.
- IKERBASQUE, Basque Foundation for Science, Bilbao 48013, Spain.
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Yan L, Li J, Wu Q, Chen L. Specific miRNA expression profile in the blood serum of cardiac myxoma patients. Oncol Lett 2018; 16:4235-4242. [PMID: 30250535 PMCID: PMC6144211 DOI: 10.3892/ol.2018.9209] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2017] [Accepted: 05/22/2018] [Indexed: 12/18/2022] Open
Abstract
The profile of differentially expressed microRNAs (miRNAs) in the serum of patients with cardiac myxoma (CM) (n=30) and healthy people (n=30) was studied using miRNA microarray analysis. The expression of the candidate miRNAs was validated by reverse transcription-quantitative polymerase chain reaction (RT-qPCR) in the serum of 30 CM patients and 30 healthy control individuals. TargetScan, PicTar and miRanda were used to predict the possible target gene of miR-320a. The Gene Ontology database and Kyoto Encyclopedia of Genes and Genomes database were used to enrich the functions and signaling pathways of the target genes, respectively. The results showed that 4 differentially expressed miRNAs were identified, the expression levels of miR-320a and miR-1249-5p were upregulated, and those of miR-634 and miR-6870-3p were downregulated in CM patients (P<0.05). The expression levels of miR-320a and miR-634 selected for verification by RT-qPCR were in high concordance with the results of microarray analysis. Through bioinformatics, we identified 487 target genes predicted from miR-320a, that were mostly enriched in the bone morphogenetic protein signaling pathway, nicotinamide adenine dinucleotide pathway and de novo ceramide biosynthetic pathway. In our study, we reported for the first time the circulating miRNA profile of CM patients and suggested that miR-320a may participate in CM development through the ceramide signaling pathway.
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Affiliation(s)
- Liangliang Yan
- Department of Cardiac Surgery, Union Hospital of Fujian Medical University, Fuzhou, Fujian 350001, P.R. China
| | - Jiahui Li
- Department of Cardiac Surgery, Union Hospital of Fujian Medical University, Fuzhou, Fujian 350001, P.R. China
| | - Qingsong Wu
- Department of Cardiac Surgery, Union Hospital of Fujian Medical University, Fuzhou, Fujian 350001, P.R. China
| | - Liangwan Chen
- Department of Cardiac Surgery, Union Hospital of Fujian Medical University, Fuzhou, Fujian 350001, P.R. China
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Zhao W, Sun Q, Yu Z, Mao S, Jin Y, Li J, Jiang Z, Zhang Y, Chen M, Chen P, Chen D, Xu H, Ding S, Yu Z. MiR-320a-3p/ELF3 axis regulates cell metastasis and invasion in non-small cell lung cancer via PI3K/Akt pathway. Gene 2018; 670:31-37. [PMID: 29803922 DOI: 10.1016/j.gene.2018.05.100] [Citation(s) in RCA: 54] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2018] [Accepted: 05/23/2018] [Indexed: 11/29/2022]
Abstract
MicroRNAs (miRNAs) play important roles in tumorigenesis and tumor progression. In this study, we investigated the role of miR-320a-3p in non-small cell lung cancer (NSCLC). Expressions of miR-320a-3p were firstly determined in 80 NSCLC patients' cancer tissues and adjacent normal lung tissues by qRT-PCR. Then MTT assay, cell migration and invasion assays were performed in vitro. Potential binding sites on target gene of miR-320a-3p were predicted and luciferase reporter assay was used to identify the potential binding sites. Tumorigenesis assay were performed in nude mice by injecting A549 cells which stably express miR-320a-3p. Results indicated that high expression of miR-320a-3p suppresses cell proliferation, migration and invasion through the inactivation of PI3K/Akt signaling pathway in NSCLC cells. Smaller tumor size and lighter weight were also found in nude mice which had miR-320a-3p higher expressed. Furthermore, data from luciferase reporter assay proved the direct binding of miR-320a-3p on the 3'UTR region of ELF3 mRNA, this could further decrease ELF3 expression transcriptionally. We provided evidence that miR-320a-3p might work as a tumor suppressor in NSCLC both in vivo and in vitro.
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Affiliation(s)
- Wen Zhao
- Department of Respiratory Medicine, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong 510120, PR China
| | - Qiang Sun
- Zhongshan School of Medicine, Sun Yat-sen University-Michigan State University Joint Center of Vector Control for Tropical Diseases, Guangzhou, Guangdong 510080, PR China
| | - Zepeng Yu
- Department of Respiratory Medicine, The second Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong 510260, PR China
| | - Shuai Mao
- Department of Critical Care Medicine, Guangdong Provincial Hospital of Chinese Medicine, Guangzhou, Guangdong 510120, PR China
| | - Yingkang Jin
- Department of Respiratory Medicine, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong 510120, PR China
| | - Jiajun Li
- Department of Respiratory Medicine, The second Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong 510260, PR China
| | - Zhiyi Jiang
- Department of Respiratory Medicine, The second Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong 510260, PR China
| | - Yongqiang Zhang
- Department of Respiratory Medicine, The second Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong 510260, PR China
| | - Mian Chen
- Department of Respiratory Medicine, The second Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong 510260, PR China
| | - Peiran Chen
- Department of Respiratory Medicine, The second Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong 510260, PR China
| | - Dongdong Chen
- Department of Respiratory Medicine, The second Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong 510260, PR China
| | - Hailin Xu
- Department of Respiratory Medicine, The second Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong 510260, PR China
| | - Shangwei Ding
- Department of Ultrasonography, Dongguan People's Hospital Affiliated to Southern Medical University, Dongguan, Guangdong 523059, PR China.
| | - Zhiqi Yu
- Department of Respiratory Medicine, The second Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong 510260, PR China.
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9
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Zhao F, Pu Y, Cui M, Wang H, Cai S. MiR-20a-5p represses the multi-drug resistance of osteosarcoma by targeting the SDC2 gene. Cancer Cell Int 2017; 17:100. [PMID: 29118673 PMCID: PMC5668954 DOI: 10.1186/s12935-017-0470-2] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2017] [Accepted: 10/24/2017] [Indexed: 12/21/2022] Open
Abstract
Background As one of the hallmarks of cancer, chemoresistance hinders curative cancer chemotherapy in osteosarcoma (OS). MicroRNAs (miRNAs) act as key regulators of gene expression in diverse biological processes including the multi-chemoresistance of cancers. Methods Based on the CCK8 experiments, we performed an RNA-seq-based miR-omic analysis of osteosarcoma (OS) cells (a multi-chemosensitive OS cell line G-292 and a multi-chemoresistant OS cell line SJSA-1) to detect the levels of miR-20a-5p. We predicted Homo sapiens syndecan 2 (SDC2) as one of the target genes of miR-20a-5p via several websites, which was further validated by detecting their expression of both mRNA and protein level in both the miR-20a-5p-mimic transfected G-292 and miR-20a-5p-antagomiR transfected SJSA-1 cells. The involvement of SDC2 with OS chemoresistance was checked by siRNA-mediated repression or overexpression of SDC2 gene. Cell viability was assessed by CCK8 assay. Results We found that the miR-20a-5p level was higher in G-292 cells than in SJSA-1 cells. Forced expression of miR-20a-5p counteracted OS chemoresistance in both cell culture and tumor xenografts in nude mice. As one of miR-20a-5p’s targets, SDC2 was found to mediate the miR-20a-5p-induced repression of OS chemoresistance. Conclusions Our results suggest that miR-20a-5p and SDC2 contribute to OS chemoresistance. The key players in the miR-20a-5p/SDC2 axis may be a potential diagnostic biomarker and therapeutic target for OS patients.
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Affiliation(s)
- Fangfang Zhao
- Cancer Epigenetics Program, Anhui Cancer Hospital, West Branch of Anhui Provincial Hospital, Anhui Medical University, Hefei, 230031 Anhui China
| | - Youguang Pu
- Cancer Epigenetics Program, Anhui Cancer Hospital, West Branch of Anhui Provincial Hospital, Anhui Medical University, Hefei, 230031 Anhui China
| | - Mingda Cui
- Xinxiang Medical University, Xinxiang, 453003 Henan China
| | - Haiyan Wang
- Department of Clinical Geriatrics, Anhui Provincial Hospital, Anhui Medical University, Hefei, 230031 Anhui China
| | - Shanbao Cai
- Cancer Epigenetics Program, Anhui Cancer Hospital, West Branch of Anhui Provincial Hospital, Anhui Medical University, Hefei, 230031 Anhui China.,Xinxiang Medical University, Xinxiang, 453003 Henan China.,Department of Orthopedic Surgery and Cancer Epigenetics Program, Anhui Cancer Hospital, West Branch of Affiliated Provincial Hospital, Anhui Medical University, Hefei, 230031 Anhui China
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10
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Yang L, Li Y, Wang X, Liu Y, Yang L. MicroRNA‑320a inhibition decreases insulin‑induced KGN cell proliferation and apoptosis by targeting PCGF1. Mol Med Rep 2017; 16:5706-5712. [PMID: 28849208 DOI: 10.3892/mmr.2017.7270] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2016] [Accepted: 05/22/2017] [Indexed: 11/05/2022] Open
Abstract
MicroRNAs (miRNAs) are widely involved in regulation of cellular processes of polycystic ovary syndrome (PCOS). However, the function of miR‑320a in PCOS remains unclear. The present study aimed to explore the effect of miR‑320a on PCOS cell proliferation and apoptosis following treatment with insulin, and to clarify the underlying mechanism. PCOS tissues and corresponding normal tissues were collected from 16 female patients with PCOS. KGN cells were pre‑treated with insulin, and KGN cells were transfected with ASO‑miR‑320a, miR‑320a mimics and polycomb group ring finger 1 (PCGF1) overexpression plasmids. Expressions of miR‑320a and PCGF1 were detected using the reverse transcription‑quantitative polymerase chain reaction (RT‑qPCR). Dual‑Luciferase reporter assays were performed to investigate the target gene of miR‑320a. MTS, colony formation and flow cytometry assays were performed to determine cell viability, colony formation, and apoptosis, respectively. Furthermore, mRNA and protein expression levels of B‑cell lymphoma 2 apoptosis regulator (Bcl‑2) and Bcl‑2 associated protein X apoptosis regulator (Bax) were examined using RT‑qPCR and western blotting. The results demonstrated that miR‑320a expression was significantly increased in PCOS tissues compared with normal tissues. Moreover, miR‑320a was upregulated in insulin‑induced cells in a dose‑dependent manner. Inhibition of miR‑320a suppressed insulin‑induced cell viability and colony formation, and promoted apoptosis. Luciferase reporter assays demonstrated that PCGF1 was a target of miR‑320a. Additionally, PCGF1 overexpression inhibited cell viability and colony formation and promoted apoptosis. Additionally, the mRNA and protein levels of Bcl‑2 were inhibited by miR‑320a suppression and PCGF1 overexpression, while Bax expression was promoted by them in insulin‑induced cells. The results of the present study demonstrated that miR‑320a inhibition decreased insulin‑induced KGN cell proliferation and apoptosis by targeting PCGF1. These data indicated that miR‑320a may serve as a potential diagnostic biomarker for PCOS.
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Affiliation(s)
- Lei Yang
- Department of Obstetrics and Gynecology Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, P.R. China
| | - Yan Li
- Department of Obstetrics and Gynecology Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, P.R. China
| | - Xiaojing Wang
- Department of Obstetrics and Gynecology Surgery, The Second Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450014, P.R. China
| | - Yuling Liu
- Department of Obstetrics and Gynecology Surgery, The Second Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450014, P.R. China
| | - Lingzhu Yang
- Department of Obstetrics and Gynecology Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, P.R. China
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11
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Wang BG, Li JS, Liu YF, Xu Q. MicroRNA-200b suppresses the invasion and migration of hepatocellular carcinoma by downregulating RhoA and circRNA_000839. Tumour Biol 2017; 39:1010428317719577. [PMID: 28695771 DOI: 10.1177/1010428317719577] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
MicroRNAs could mediate the targeted coding gene and the targeted non-coding RNA to form endogenous competition, which have an important regulatory role in tumorigenesis of many types of cancer, including hepatocellular carcinoma. The goal of this study was to characterize the role of miR-200b in the pathogenesis of hepatocellular carcinoma. We identified miR-200b that was predicted to regulate RhoA and circ_000839. Our data establish that miR-200b is expressed at a relatively low level in hepatocellular carcinoma ( p < 0.001). RhoA and circ_000839 are expressed at a relatively high level in hepatocellular carcinoma ( p < 0.001, respectively). Our mechanistic data indicate that RhoA is a direct target of miR-200b ( p < 0.001), binding of which affects the expression of invasion and migration in hepatocellular carcinoma cell lines ( p < 0.05). And correlation analysis showed that miR-200b was inversely correlated with RhoA and circ_000839 ( p = 0.012, p = 0.002, respectively), while RhoA was positively correlated with circ_000839 ( p < 0.001). Taken together, our data suggest that miR-200b could mediate RhoA gene and circ_000839 to form endogenous competition. And this is a direction for the association study of miR-200b and RhoA in the future.
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Affiliation(s)
- Ben-Gang Wang
- 1 Hepatobiliary Surgery Department of General Surgery Institute, The First Affiliated Hospital of China Medical University, Shenyang, China
| | - Jun-Shuai Li
- 1 Hepatobiliary Surgery Department of General Surgery Institute, The First Affiliated Hospital of China Medical University, Shenyang, China
| | - Yong-Feng Liu
- 1 Hepatobiliary Surgery Department of General Surgery Institute, The First Affiliated Hospital of China Medical University, Shenyang, China
| | - Qian Xu
- 2 Tumor Etiology and Screening Department of General Surgery Institute, The First Affiliated Hospital of China Medical University, Shenyang, China
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12
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Hao NB, He YF, Li XQ, Wang K, Wang RL. The role of miRNA and lncRNA in gastric cancer. Oncotarget 2017; 8:81572-81582. [PMID: 29113415 PMCID: PMC5655310 DOI: 10.18632/oncotarget.19197] [Citation(s) in RCA: 166] [Impact Index Per Article: 23.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2017] [Accepted: 06/20/2017] [Indexed: 12/14/2022] Open
Abstract
Gastric cancer is one of the most common cancers and has the highest mortality rate worldwide. It is worthwhile to explore the mechanism of gastric cancer progression. An increasing number of studies have found that non-coding RNAs including miRNA and lncRNA play important roles in gastric cancer progression. This review summarized the role of ectopic miRNA in gastric cancer proliferation, growth, migration, invasion and apoptosis. Meantime, aberrantly expressed miRNA also received a great deal of attention as potential biomarker for gastric cancer diagnosis and therapy. Over the last decade, lncRNA was considered to regulate gastric cancer progression at the transcript and post-transcript level. At the transcript level, lncRNA induced gastric cancer progression by changing chromatin modification and mRNA stabilization to regulate mRNA and miRNA expression. Furthermore, lncRNA regulated gastric cancer progression by completely combining with miRNA to produce ceRNA or promote protein stabilization at the post-transcript level. Greater attention of miRNA and lncRNA in gastric cancer can provide new insight of mechanism of cancer development and may be acted as a new anticancer target.
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Affiliation(s)
- Ning-Bo Hao
- Department of Gastroenterology, General Hospital of the PLA Rocket Force, Beijing, China
| | - Ya-Fei He
- Intensive Medical Center, 302 Hospital of PLA, Beijing, China
| | - Xiao-Qin Li
- Department of Ophthalmology, General Hospital of the PLA Rocket Force, Beijing, China
| | - Kai Wang
- New Era Stoke Care and Research Institute, General Hospital of the PLA Rocket Force, Beijing, China
| | - Rui-Ling Wang
- Department of Gastroenterology, General Hospital of the PLA Rocket Force, Beijing, China
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13
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Li Y, Liu H, Shao J, Xing G. miR-320a serves as a negative regulator in the progression of gastric cancer by targeting RAB14. Mol Med Rep 2017; 16:2652-2658. [PMID: 28713899 PMCID: PMC5547933 DOI: 10.3892/mmr.2017.6937] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2016] [Accepted: 05/02/2017] [Indexed: 12/24/2022] Open
Abstract
Gastric cancer (GC) is one of the most common types of malignancy worldwide, with high morbidity and mortality rates. The dysregulation of microRNAs (miRs) has been found to be involved in the carcinogenesis of GC. The present study aimed to investigate the underlying association between GC and miR-320a. Analysis using reverse transcription quantitative polymerase chain reaction indicated that the expression of miR-320a was downregulated and the expression of RAB14 was upregulated in GC tissues and cells, compared with the corresponding controls. MTT, colony formation assays, and flow cytometric analyses were used to evaluate the effect of miR-320a on cell proliferation and the cell cycle. The ectopic expression of miR-320a using miR-320a mimics suppressed cell viability, inhibited G1/S transition, and induced apoptosis in AGS and MKN45 cells. In addition, RAB14 was identified as a direct target gene of miR-320a, according to the results of bioinformatics analysis and a luciferase reporter assay. Downregulation of RAB14 by RAB14-small interfering RNA inhibited the viability of GC cells, which was similar to the phenotype of miR-320a mimics. Furthermore, the reintroduction of RAB14 partially abrogated the miR-320a-mediated downregulation of RAB14 and rescued the miR-320a-induced effects on GC cell growth. These findings suggest a potential novel therapeutic target for the treatment of GC.
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Affiliation(s)
- Yongyuan Li
- Department of General Surgery, The Fifth Central Hospital of Tianjin, Tianjin 300450, P.R. China
| | - Hongjie Liu
- Department of Radiology, The Fifth Central Hospital of Tianjin, Tianjin 300450, P.R. China
| | - Jianping Shao
- Department of General Surgery, The Fifth Central Hospital of Tianjin, Tianjin 300450, P.R. China
| | - Guoqiang Xing
- Department of General Surgery, The Fifth Central Hospital of Tianjin, Tianjin 300450, P.R. China
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14
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Shen S, Jiang J, Yuan Y. Pepsinogen C expression, regulation and its relationship with cancer. Cancer Cell Int 2017; 17:57. [PMID: 28546787 PMCID: PMC5442862 DOI: 10.1186/s12935-017-0426-6] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2017] [Accepted: 05/12/2017] [Indexed: 12/13/2022] Open
Abstract
Pepsinogen C (PGC) belongs to the aspartic protease family and is secreted by gastric chief cells. PGC could be activated to pepsin C and digests polypeptides and amino acids, but as a zymogen PGC’s functions is unclear. In normal physiological conditions, PGC is initially detected in the late embryonic stage and is mainly expressed in gastric mucosa. The in situ expression of PGC in gastric mucosa is decreased considerably in the process of superficial gastritis → atrophic gastritis → gastric cancer (GC), proving that PGC is a comparatively ideal negative marker of GC. Serum PGC, and PGA levels and the PGA/PGC ratio have satisfactory sensitivity, specificity and price–quality ratio for predicting high GC risk. Ectopic PGC expression is significantly increased in prostate cancer, breast cancer, ovary cancer and endometrial cancer. In those sex-related cancers high level PGC expression indicates better prognosis and longer survival. The regulation of PGC expression involves genetic and epigenetic alteration of the encoding PGC gene, hormones modulation and interactions between PGC with other transcription factors and protein kinases. More and more research evidence hinted that PGC has strong correlation with cancer. In the systematic review, we respectively elaborate the structure, potential physiological functions, expression characteristics and regulation of PGC, and especially focus on the relationship between PGC expression and cancer to highlight the role of PGC in the tumorigenesis and its application value in clinical practice.
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Affiliation(s)
- Shixuan Shen
- Tumor Etiology and Screening Department of Cancer Institute and General Surgery, The First Affiliated Hospital of China Medical University, Key Laboratory of Cancer Etiology and Prevention of Liaoning Provincial Education Department, Shenyang, 110001 China
| | - Jingyi Jiang
- Tumor Etiology and Screening Department of Cancer Institute and General Surgery, The First Affiliated Hospital of China Medical University, Key Laboratory of Cancer Etiology and Prevention of Liaoning Provincial Education Department, Shenyang, 110001 China
| | - Yuan Yuan
- Tumor Etiology and Screening Department of Cancer Institute and General Surgery, The First Affiliated Hospital of China Medical University, Key Laboratory of Cancer Etiology and Prevention of Liaoning Provincial Education Department, Shenyang, 110001 China
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15
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Huang D, Bian G, Pan Y, Han X, Sun Y, Wang Y, Shen G, Cheng M, Fang X, Hu S. MiR-20a-5p promotes radio-resistance by targeting Rab27B in nasopharyngeal cancer cells. Cancer Cell Int 2017; 17:32. [PMID: 28265202 PMCID: PMC5333421 DOI: 10.1186/s12935-017-0389-7] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2016] [Accepted: 01/28/2017] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND MicroRNAs (miRNAs) was reported to be involved in cancer radio-resistance, which remains a major obstacle for effective cancer therapy. METHODS The differently expressed miRNAs were detected by RNA-seq experiment in nasopharyngeal cancer (NPC) cells. MiR-20a-5p was selected as our target, which was subject to finding its target gene Rab27B via bioinformatics analysis. The qRT-PCR, western blot and the luciferase reporter assays were performed to confirm Rab27B as the target of miR-20a-5p. In addition, the roles of miR-20a-5p in NPC radio-resistance were detected by transfection of either miR-20a-5p-mimic or miR-20a-5p-antagomiR. The involvement of Rab27B with NPC radio-resistance was also detected by the experiments with siRNA-mediated repression of Rab27B or over-expression of GFP-Rab27B. Wound healing and invasion assays were performed to detect the roles of both miR-20a-5p and Rab27B. RESULTS MiR-20a-5p promotes NPC radio-resistance. We identified that its target gene Rab27B negatively correlates with miR-20a-5p-mediated NPC radio-resistance by systematic studies of a radio-sensitive (CNE-2) and resistant (CNE-1) NPC cell lines. Repression of Rab27B by siRNA suppresses cell apoptosis and passivates CNE-2 cells, whereas over-expression of Rab27B triggered cell apoptosis and sensitizes CNE-1 cells. CONCLUSIONS MiR-20a-5p and its target gene Rab27B might be involved in the NPC radio-resistance. Thus the key players and regulators involved in this pathway might be the potential targets for developing effective therapeutic strategies against NPC.
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Affiliation(s)
- Dabing Huang
- Shandong University School of Medicine, Jinan, 250012 China.,Department of Geriatrics, Anhui Provincial Hospital, Anhui Medical University, Hefei, 230031 Anhui China.,Department of Oncology, Anhui Provincial Hospital, Anhui Medical University, Hefei, 230001 China
| | - Geng Bian
- Department of Geriatrics, Anhui Provincial Hospital, Anhui Medical University, Hefei, 230031 Anhui China
| | - Yueyin Pan
- Department of Oncology, Anhui Provincial Hospital, Anhui Medical University, Hefei, 230001 China
| | - Xinghua Han
- Department of Oncology, Anhui Provincial Hospital, Anhui Medical University, Hefei, 230001 China
| | - Yubei Sun
- Department of Oncology, Anhui Provincial Hospital, Anhui Medical University, Hefei, 230001 China
| | - Yong Wang
- Department of Oncology, Anhui Provincial Hospital, Anhui Medical University, Hefei, 230001 China
| | - Guodong Shen
- Anhui Provincial Key Laboratory of Tumor Immunotherapy and Nutrition Therapy, Hefei, 230001 China
| | - Min Cheng
- Anhui Provincial Key Laboratory of Tumor Immunotherapy and Nutrition Therapy, Hefei, 230001 China
| | - Xiang Fang
- Department of Geriatrics, Anhui Provincial Hospital, Anhui Medical University, Hefei, 230031 Anhui China
| | - Shilian Hu
- Shandong University School of Medicine, Jinan, 250012 China.,Department of Geriatrics, Anhui Provincial Hospital, Anhui Medical University, Hefei, 230031 Anhui China.,Anhui Provincial Key Laboratory of Tumor Immunotherapy and Nutrition Therapy, Hefei, 230001 China
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16
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Xu Q, Chen TJ, He CY, Sun LP, Liu JW, Yuan Y. MiR-27a rs895819 is involved in increased atrophic gastritis risk, improved gastric cancer prognosis and negative interaction with Helicobacter pylori. Sci Rep 2017; 7:41307. [PMID: 28150722 PMCID: PMC5288699 DOI: 10.1038/srep41307] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2016] [Accepted: 12/19/2016] [Indexed: 12/15/2022] Open
Abstract
MiR-27a rs895819 is a loop-stem structure single nucleotide polymorphism affecting mature miR-27a function. In this study, we performed a comprehensive analysis about the association of rs895819 with gastric cancer risk and prognosis, atrophic gastritis risk, as well as the interactions with environmental factors. A total of 939 gastric cancer patients, 1,067 atrophic gastritis patients and 1,166 healthy controls were screened by direct sequencing and MALDI-TOF-MS. The association of rs895819 with clinical pathological parameters and prognostic survival in 357 gastric cancer patients was also been analyzed. The rs895819 variant genotype increased the risk for atrophic gastritis (1.58-fold) and gastric cancer (1.24-fold). While in stratified analysis, the risk effect was demonstrated more significantly in the female, age >60y, Helicobacter pylori (H. pylori) negative and non-drinker subgroups. Rs895819 and H. pylori showed an interaction effect for atrophic gastritis risk. In the survival analysis, the rs895819 AG heterozygosis was associated with better survival than the AA wild-type in the TNM stage I–II subgroup. In vitro study by overexpressing miR-27a, cells carrying polymorphic-type G allele expressed lower miR-27a than wild-type A allele. In conclusion, miR-27a rs895819 is implicated as a biomarker for gastric cancer and atrophic gastritis risk, and interacts with H. pylori in gastric carcinogenesis.
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Affiliation(s)
- Qian Xu
- Tumor Etiology and Screening Department of Cancer Institute and General Surgery, the First Affiliated Hospital of China Medical University, and Key Laboratory of Cancer Etiology and Prevention (China Medical University), Liaoning Provincial Education Department, Shenyang 110001, China
| | - Tie-Jun Chen
- Tumor Etiology and Screening Department of Cancer Institute and General Surgery, the First Affiliated Hospital of China Medical University, and Key Laboratory of Cancer Etiology and Prevention (China Medical University), Liaoning Provincial Education Department, Shenyang 110001, China
| | - Cai-Yun He
- Department of Molecular Diagnostics, Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, China
| | - Li-Ping Sun
- Tumor Etiology and Screening Department of Cancer Institute and General Surgery, the First Affiliated Hospital of China Medical University, and Key Laboratory of Cancer Etiology and Prevention (China Medical University), Liaoning Provincial Education Department, Shenyang 110001, China
| | - Jing-Wei Liu
- Tumor Etiology and Screening Department of Cancer Institute and General Surgery, the First Affiliated Hospital of China Medical University, and Key Laboratory of Cancer Etiology and Prevention (China Medical University), Liaoning Provincial Education Department, Shenyang 110001, China
| | - Yuan Yuan
- Tumor Etiology and Screening Department of Cancer Institute and General Surgery, the First Affiliated Hospital of China Medical University, and Key Laboratory of Cancer Etiology and Prevention (China Medical University), Liaoning Provincial Education Department, Shenyang 110001, China
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17
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CCL20/CCR6 promotes cell proliferation and metastasis in laryngeal cancer by activating p38 pathway. Biomed Pharmacother 2017; 85:486-492. [DOI: 10.1016/j.biopha.2016.11.055] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2016] [Revised: 10/23/2016] [Accepted: 11/14/2016] [Indexed: 01/25/2023] Open
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18
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Yu J, Wang L, Yang H, Ding D, Zhang L, Wang J, Chen Q, Zou Q, Jin Y, Liu X. Rab14 Suppression Mediated by MiR-320a Inhibits Cell Proliferation, Migration and Invasion in Breast Cancer. J Cancer 2016; 7:2317-2326. [PMID: 27994670 PMCID: PMC5166543 DOI: 10.7150/jca.15737] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2016] [Accepted: 09/17/2016] [Indexed: 12/11/2022] Open
Abstract
We found that microRNA-320a (miR-320a) was an attractive prognostic biomarker in breast cancer (BC) previously, whereas its regulatory mechanism in BC was not well understood. Our aim was to identify miR-320a target gene, examine the clinical relationship between miR-320a and its target, and further explore the functions of its target in BC. In this study, miR-320a downstream target gene was determined in HEK-293T cells by dual luciferase reporter assay. Then western blotting and immunohistochemistry were used to assess miR-320a target gene expression in fresh frozen (n=19, breast cancer and matched non-malignant adjacent tissue samples) and formalin-fixed paraffin-embedded (FFPE) (n=130, invasive BC tissues, the same panel detected for miR-320a expression previously) breast tissues, respectively. The results suggested that miR-320a could significantly suppressed Rab14 3'-untranslated region luciferase-reporter activity, and thus Rab14 was first identified as miR-320a target in BC. In 19 matched breast tissues, 12 (63%) breast cancer tissues showed high expression of Rab14 compared with the corresponding normal tissues. Rab14 immunoreactivity was mainly detected in the cytoplasm, 77/130 (59.2%) showed high expression. Furthermore, Rab14 expression was found to be inversely correlated with miR-320a expression in fresh-frozen breast tissues as well as in FFPE invasive breast cancer samples. In addition, Rab14 expression levels were positively related to tumor size (P = 0.034), lymph node metastasis (P < 0.001), distant metastasis (P = 0.001), histological grade (P = 0.035) and clinical tumor lymph-node metastasis stage (P = 0.001). Patients with higher Rab14 expression showed shorter overall survival time. Moreover, silencing of Rab14 could suppress proliferation, migration and invasion in breast cancer cell lines. Collectively, our results indicate that miR-320a could target Rab14 and that they could interact biologically in BC.
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Affiliation(s)
- Juan Yu
- Department of Pathology, School of Basic Medical Sciences, Fudan University, Shanghai 200032, China
| | - Lei Wang
- Department of Pathology, School of Basic Medical Sciences, Fudan University, Shanghai 200032, China
| | - Haiping Yang
- Department of Pathology, People's Hospital, Linzi District, Zibo City, Shandong 255400, China
| | - Di Ding
- Department of Pathology, School of Basic Medical Sciences, Fudan University, Shanghai 200032, China
| | - Lei Zhang
- Department of Pathology, School of Basic Medical Sciences, Fudan University, Shanghai 200032, China
| | - Jigang Wang
- Department of Pathology, School of Basic Medical Sciences, Fudan University, Shanghai 200032, China
| | - Qi Chen
- Department of Pathology, School of Basic Medical Sciences, Fudan University, Shanghai 200032, China
| | - Qiang Zou
- Department of Surgery, Huashan Hospital, Fudan University, Shanghai 200040, China
| | - Yiting Jin
- Department of Surgery, Huashan Hospital, Fudan University, Shanghai 200040, China
| | - Xiuping Liu
- Department of Pathology, the Fifth People's Hospital, Fudan University, Shanghai 200240, China
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19
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Pu Y, Yi Q, Zhao F, Wang H, Cai W, Cai S. MiR-20a-5p represses multi-drug resistance in osteosarcoma by targeting the KIF26B gene. Cancer Cell Int 2016; 16:64. [PMID: 27499703 PMCID: PMC4974744 DOI: 10.1186/s12935-016-0340-3] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2016] [Accepted: 07/19/2016] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND Chemoresistance hinders curative cancer chemotherapy in osteosarcoma (OS), resulting in only an approximately 20 % survival rate in patients with metastatic disease at diagnosis. Identifying the mechanisms responsible for regulating chemotherapy resistance is crucial for improving OS treatment. METHODS This study was performed in two human OS cell lines (the multi-chemosensitive OS cell line G-292 and the multi-chemoresistant OS cell line SJSA-1). The levels of miR-20a-5p and KIF26B mRNA expression were determined by quantitative real-time PCR. KIF26B protein levels were determined by western blot analysis. Cell viability was assessed by MTT assay. Apoptosis was evaluated by flow cytometry. RESULTS We found that miR-20a-5p was more highly expressed in G-292 cells than in SJSA-1 cells. Forced expression of miR-20a-5p counteracted OS cell chemoresistance in both cell culture and tumor xenografts in nude mice. One of miR-20a-5p's targets, kinesin family member 26B (KIF26B), was found to mediate the miR-20a-5p-induced reduction in OS chemoresistance by modulating the activities of the MAPK/ERK and cAMP/PKA signaling pathways. CONCLUSIONS In addition to providing mechanistic insights, our study revealed that miR-20a-5p and KIF26B contribute to OS chemoresistance and determined the roles of these genes in this process, which may be critical for characterizing drug responsiveness and overcoming chemoresistance in OS patients.
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Affiliation(s)
- Youguang Pu
- Cancer Epigenetics Program, Anhui Cancer Hospital, West District of Affiliated Provincial Hospital of Anhui Medical University, Hefei, 230031 Anhui China
| | - Qiyi Yi
- Department of Nuclear Medicine, School of Basic Medical Sciences, Anhui Medical University, Hefei, 230031 Anhui China
| | - Fangfang Zhao
- Cancer Epigenetics Program, Anhui Cancer Hospital, West District of Affiliated Provincial Hospital of Anhui Medical University, Hefei, 230031 Anhui China
| | - Haiyan Wang
- Department of Clinical Geriatrics, Anhui Provincial Hospital of Anhui Medical University, Hefei, 230031 Anhui China
| | - Wenjing Cai
- Indiana University School of Medicine, Indianapolis, IN 46202 USA
| | - Shanbao Cai
- Cancer Epigenetics Program, Anhui Cancer Hospital, West District of Affiliated Provincial Hospital of Anhui Medical University, Hefei, 230031 Anhui China.,Department of Orthopedic Surgery, Anhui Cancer Hospital, West District of Affiliated Provincial Hospital of Anhui Medical University, Hefei, 230031 Anhui China
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20
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Fang W, Guo J, Cao Y, Wang S, Pang C, Li M, Dou L, Man Y, Huang X, Shen T, Li J. MicroRNA-20a-5p contributes to hepatic glycogen synthesis through targeting p63 to regulate p53 and PTEN expression. J Cell Mol Med 2016; 20:1467-1480. [PMID: 27019188 PMCID: PMC4956936 DOI: 10.1111/jcmm.12835; epub 2016] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2015] [Accepted: 02/14/2016] [Indexed: 08/31/2023] Open
Abstract
Recently, it is implicated that aberrant expression of microRNAs (miRs) is associated with insulin resistance. However, the role of miR-17 family in hepatic insulin resistance and its underlying mechanisms remain unknown. In this study, we provided mechanistic insight into the effects of miR-20a-5p, a member of miR-17 family, on the regulation of AKT/GSK pathway and glycogenesis in hepatocytes. MiR-20a-5p was down-regulated in the liver of db/db mice, and NCTC1469 cells and Hep1-6 cells treated with high glucose, accompanied by reduced glycogen content and impaired insulin signalling. Notably, inhibition of miR-20a-5p significantly reduced glycogen synthesis and AKT/GSK activation, whereas overexpression of miR-20a-5p led to elevated glycogenesis and activated AKT/GSK signalling pathway. In addition, miR-20a-5p mimic could reverse high glucose-induced impaired glycogenesis and AKT/GSK activation in NCTC1469 and Hep1-6 cells. P63 was identified as a target of miR-20a-5p by bioinformatics analysis and luciferase reporter assay. Knockdown of p63 in the NCTC1469 cells and the Hep1-6 cells by transfecting with siRNA targeting p63 could increase glycogen content and reverse miR-20a-5p inhibition-induced reduced glycogenesis and activation of AKT and GSK, suggesting that p63 participated in miR-20a-5p-mediated glycogenesis in hepatocytes. Moreover, our results indicate that p63 might directly bind to p53, thereby regulating PTEN expression and in turn participating in glycogenesis. In conclusion, we found novel evidence suggesting that as a member of miR-17 family, miR-20a-5p contributes to hepatic glycogen synthesis through targeting p63 to regulate p53 and PTEN expression.
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Affiliation(s)
- Weiwei Fang
- Graduate School of Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China
- The Key Laboratory of Geriatrics, Beijing Institute of Geriatrics and Beijing Hospital, Ministry of Health, Beijing, China
| | - Jun Guo
- The Key Laboratory of Geriatrics, Beijing Institute of Geriatrics and Beijing Hospital, Ministry of Health, Beijing, China
| | - Yuan Cao
- The Key Laboratory of Geriatrics, Beijing Institute of Geriatrics and Beijing Hospital, Ministry of Health, Beijing, China
| | - Shuyue Wang
- The Key Laboratory of Geriatrics, Beijing Institute of Geriatrics and Beijing Hospital, Ministry of Health, Beijing, China
| | - Cheng Pang
- The Key Laboratory of Geriatrics, Beijing Institute of Geriatrics and Beijing Hospital, Ministry of Health, Beijing, China
| | - Meng Li
- The Key Laboratory of Geriatrics, Beijing Institute of Geriatrics and Beijing Hospital, Ministry of Health, Beijing, China
| | - Lin Dou
- The Key Laboratory of Geriatrics, Beijing Institute of Geriatrics and Beijing Hospital, Ministry of Health, Beijing, China
| | - Yong Man
- The Key Laboratory of Geriatrics, Beijing Institute of Geriatrics and Beijing Hospital, Ministry of Health, Beijing, China
| | - Xiuqing Huang
- The Key Laboratory of Geriatrics, Beijing Institute of Geriatrics and Beijing Hospital, Ministry of Health, Beijing, China
| | - Tao Shen
- The Key Laboratory of Geriatrics, Beijing Institute of Geriatrics and Beijing Hospital, Ministry of Health, Beijing, China
| | - Jian Li
- Graduate School of Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China
- The Key Laboratory of Geriatrics, Beijing Institute of Geriatrics and Beijing Hospital, Ministry of Health, Beijing, China
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Fang W, Guo J, Cao Y, Wang S, Pang C, Li M, Dou L, Man Y, Huang X, Shen T, Li J. MicroRNA-20a-5p contributes to hepatic glycogen synthesis through targeting p63 to regulate p53 and PTEN expression. J Cell Mol Med 2016; 20:1467-80. [PMID: 27019188 PMCID: PMC4956936 DOI: 10.1111/jcmm.12835] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2015] [Accepted: 02/14/2016] [Indexed: 12/15/2022] Open
Abstract
Recently, it is implicated that aberrant expression of microRNAs (miRs) is associated with insulin resistance. However, the role of miR‐17 family in hepatic insulin resistance and its underlying mechanisms remain unknown. In this study, we provided mechanistic insight into the effects of miR‐20a‐5p, a member of miR‐17 family, on the regulation of AKT/GSK pathway and glycogenesis in hepatocytes. MiR‐20a‐5p was down‐regulated in the liver of db/db mice, and NCTC1469 cells and Hep1‐6 cells treated with high glucose, accompanied by reduced glycogen content and impaired insulin signalling. Notably, inhibition of miR‐20a‐5p significantly reduced glycogen synthesis and AKT/GSK activation, whereas overexpression of miR‐20a‐5p led to elevated glycogenesis and activated AKT/GSK signalling pathway. In addition, miR‐20a‐5p mimic could reverse high glucose‐induced impaired glycogenesis and AKT/GSK activation in NCTC1469 and Hep1‐6 cells. P63 was identified as a target of miR‐20a‐5p by bioinformatics analysis and luciferase reporter assay. Knockdown of p63 in the NCTC1469 cells and the Hep1‐6 cells by transfecting with siRNA targeting p63 could increase glycogen content and reverse miR‐20a‐5p inhibition‐induced reduced glycogenesis and activation of AKT and GSK, suggesting that p63 participated in miR‐20a‐5p‐mediated glycogenesis in hepatocytes. Moreover, our results indicate that p63 might directly bind to p53, thereby regulating PTEN expression and in turn participating in glycogenesis. In conclusion, we found novel evidence suggesting that as a member of miR‐17 family, miR‐20a‐5p contributes to hepatic glycogen synthesis through targeting p63 to regulate p53 and PTEN expression.
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Affiliation(s)
- Weiwei Fang
- Graduate School of Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China.,The Key Laboratory of Geriatrics, Beijing Institute of Geriatrics and Beijing Hospital, Ministry of Health, Beijing, China
| | - Jun Guo
- The Key Laboratory of Geriatrics, Beijing Institute of Geriatrics and Beijing Hospital, Ministry of Health, Beijing, China
| | - Yuan Cao
- The Key Laboratory of Geriatrics, Beijing Institute of Geriatrics and Beijing Hospital, Ministry of Health, Beijing, China
| | - Shuyue Wang
- The Key Laboratory of Geriatrics, Beijing Institute of Geriatrics and Beijing Hospital, Ministry of Health, Beijing, China
| | - Cheng Pang
- The Key Laboratory of Geriatrics, Beijing Institute of Geriatrics and Beijing Hospital, Ministry of Health, Beijing, China
| | - Meng Li
- The Key Laboratory of Geriatrics, Beijing Institute of Geriatrics and Beijing Hospital, Ministry of Health, Beijing, China
| | - Lin Dou
- The Key Laboratory of Geriatrics, Beijing Institute of Geriatrics and Beijing Hospital, Ministry of Health, Beijing, China
| | - Yong Man
- The Key Laboratory of Geriatrics, Beijing Institute of Geriatrics and Beijing Hospital, Ministry of Health, Beijing, China
| | - Xiuqing Huang
- The Key Laboratory of Geriatrics, Beijing Institute of Geriatrics and Beijing Hospital, Ministry of Health, Beijing, China
| | - Tao Shen
- The Key Laboratory of Geriatrics, Beijing Institute of Geriatrics and Beijing Hospital, Ministry of Health, Beijing, China
| | - Jian Li
- Graduate School of Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China.,The Key Laboratory of Geriatrics, Beijing Institute of Geriatrics and Beijing Hospital, Ministry of Health, Beijing, China
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Eybpoosh S, Talebkhan Y, Saberi S, Esmaeili M, Oghalaie A, Ebrahimzadeh F, Karimi T, Abdirad A, Nahvijou A, Mohagheghi MA, Eshagh Hosseini M, Mohammadi M. Age-Specific Gastric Cancer Risk Indicated by the Combination of Helicobacter pylori Sero-Status and Serum Pepsinogen Levels. IRANIAN BIOMEDICAL JOURNAL 2015; 19:133-42. [PMID: 26117138 PMCID: PMC4571008 DOI: 10.7508/ibj.2015.03.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
BACKGROUND Serologic screening of gastric cancer (GC) by serum pepsinogens (sPG) levels and Helicobacter pylori (Hp) sero-status, though highly informative, has provided heterogeneous results. Here, we have evaluated the modifying effects of demographic factors on the risk impact of Hp sero-status/sPG levels in gastric cancer, with particular emphasis on age. METHODS A cross-sectional study was carried out on 1341 individuals (GC = 578, healthy = 763), who were stratified into two age groups: 35-59 years (middle-aged, n = 830) and ≥ 60 years (60 years-plus, n = 511). Demographic factors and serological states (Hp sero-staus and sPG levels) were recorded by subject interview and serum ELISAs, respectively. Covariate-specific odds ratios were calculated by multivariable logistic regression. RESULTS Hp infection was consistently associated with increased sPGI and sPGII levels in the 60 year-plus, but not the middle-aged group. The joint examination of the variable states of the three serum biomarkers (Hp serology, sPGI, and sPGI/II ratio), in the 60 year-plus age group, demonstrated a stepwise escalation of risk from the single (sPGI low; OR = 2.6), to double (sPGI low/sPGI/II low; OR = 3.55, and Hp positive/sPGI low; OR = 5.0) and ultimately triple (Hp positive/PGI low/PGI/II low; OR = 10.48) positive states, in reference to the triple negatives. However, this pattern was not exhibited in the middle-aged subjects. CONCLUSION Age was clearly identified as a modifying factor on the risk projection of the combined states of Hp serology and sPG levels in gastric cancer screening, reflected by the augmented (~10.5 fold) risk of GC in the triple positive (Hp positive/sPGI low/sPGI/II low) 60 year-plus subjects, which was not evident in the middle-aged group.
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Affiliation(s)
- Sana Eybpoosh
- HPGC Group, Dept. of Medical Biotechnology, Biotechnology Research Center, Pasteur Institute of Iran, Tehran, Iran.,Research Center for Modeling in Health, Institute for Futures Studies in Health, Kerman University of Medical Sciences, Kerman, Iran
| | - Yeganeh Talebkhan
- HPGC Group, Dept. of Medical Biotechnology, Biotechnology Research Center, Pasteur Institute of Iran, Tehran, Iran
| | - Samaneh Saberi
- HPGC Group, Dept. of Medical Biotechnology, Biotechnology Research Center, Pasteur Institute of Iran, Tehran, Iran
| | - Maryam Esmaeili
- HPGC Group, Dept. of Medical Biotechnology, Biotechnology Research Center, Pasteur Institute of Iran, Tehran, Iran
| | - Akbar Oghalaie
- HPGC Group, Dept. of Medical Biotechnology, Biotechnology Research Center, Pasteur Institute of Iran, Tehran, Iran
| | - Fatemeh Ebrahimzadeh
- HPGC Group, Dept. of Medical Biotechnology, Biotechnology Research Center, Pasteur Institute of Iran, Tehran, Iran
| | - Toktam Karimi
- HPGC Group, Dept. of Medical Biotechnology, Biotechnology Research Center, Pasteur Institute of Iran, Tehran, Iran
| | - Afshin Abdirad
- Cancer Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Azin Nahvijou
- Cancer Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | | | - Mahmoud Eshagh Hosseini
- Dept. of Gastroenterology, Amiralam Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Marjan Mohammadi
- HPGC Group, Dept. of Medical Biotechnology, Biotechnology Research Center, Pasteur Institute of Iran, Tehran, Iran
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Shah P, Choi SW, Kim HJ, Cho SK, Thulstrup PW, Bjerrum MJ, Bhang YJ, Ahn JC, Yang SW. DNA/RNA chimera templates improve the emission intensity and target the accessibility of silver nanocluster-based sensors for human microRNA detection. Analyst 2015; 140:3422-30. [PMID: 25759134 DOI: 10.1039/c5an00093a] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
In recent years microRNAs (miRNAs) have been established as important biomarkers in a variety of diseases including cancer, diabetes, cardiovascular disease, aging, Alzheimer's disease, asthma, autoimmune disease and liver diseases. As a consequence, a variety of monitoring methods for miRNAs have been developed, including a fast and simple method for miRNA detection by exploitation of the unique photoluminescence of DNA-templated silver nanoclusters (DNA/AgNCs). To increase the versatility of the AgNC-based method, we have adopted DNA/RNA chimera templates for AgNC-based probes, allowing response from several human miRNAs which are hardly detectable with DNA-based probes. Here, we demonstrate in detail the power of DNA/RNA chimera/AgNC probes in detecting two human miRNAs, let-7a and miR-200c. The DNA/RNA chimera-based probes are highly efficient to determine the level of miRNAs in several human cell lines.
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Affiliation(s)
- Pratik Shah
- UNIK Center for Synthetic Biology, University of Copenhagen, Thorvaldsensvej 40, DK-1871 Frederiksberg C, Copenhagen, Denmark.
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24
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Expression of BKV and JCV encoded microRNA in human cerebrospinal fluid, plasma and urine. J Clin Virol 2015; 65:1-5. [PMID: 25766978 DOI: 10.1016/j.jcv.2015.01.019] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2014] [Revised: 11/30/2014] [Accepted: 01/26/2015] [Indexed: 12/16/2022]
Abstract
BACKGROUND BK and JC polyomaviruses encode microRNAs which may facilitate the establishment of persistent infection. MicroRNAs contribute to disease pathogenesis, and may provide useful tools in laboratory diagnostics and patient management. OBJECTIVES In this pilot work we studied whether viral and cellular microRNAs can be extracted and detected from body fluids to provide added value in a diagnostic laboratory. STUDY DESIGN Altogether 120 human plasma, urine, and cerebrospinal fluid samples from individuals diagnosed with, or suspected of, a severe polyomavirus associated disease, were included in the study. The samples were spiked with unrelated synthetic microRNA to control for sample quality and inhibition. BKV specific bkv-miR-B1-5p, JCV specific jcv-miR-J1-5p, and bkv-miR-B1-3p/jcv-miR-J1-3p, sharing identical sequences between the two viruses, were amplified from human samples using specific TaqMan assays. Expression of 84 circulating human microRNAs was studied in four selected plasma samples in microarray. RESULTS jcv-miR-J1-5p and bkv-miR-B1-3p/jcv-miR-J1-3p were frequently amplified from human plasma, urine, and cerebrospinal fluid samples. bkv-miR-B1-5p was amplified from one-third of the samples, which often contained high viral DNA loads. A microarray screen of human microRNAs in plasma samples suggested regulation of several human microRNA expression in BKV positive vs negative samples. CONCLUSIONS Viral and cellular microRNAs can be processed and detected from human body fluids. They may prove useful in the diagnosis and management of severe polyomavirus associated diseases, calling for further clinical evaluation.
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25
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Expression of serum let-7c, let-7i, and let-7f microRNA with its target gene, pepsinogen C, in gastric cancer and precancerous disease. Tumour Biol 2014; 36:3337-43. [PMID: 25549793 DOI: 10.1007/s13277-014-2967-9] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2014] [Accepted: 12/09/2014] [Indexed: 02/07/2023] Open
Abstract
This study examined the expression patterns of serum let-7 microRNA (miRNA) and its target gene, pepsinogen C (PGC), in gastric cancer (GC) and precancerous disease patients to evaluate their diagnostic efficiency for GC and its precursor and to investigate any correlation between the two. Serum samples were taken from 638 patients, including 214 GC patients, 222 atrophic gastritis (AG) patients, and 202 controls (CON). The expression of serum let-7 miRNA was detected in control-AG (precancerous disease) through to GC patients using quantitative reverse-transcription polymerase chain reaction. Serum PGC was determined by enzyme-linked immuno-sorbent assay. PGC expression in situ was detected by immunohistochemistry staining. The luciferase reporter gene system was used to verify correlation between let-7 miRNA and its predicted target gene. The results showed that serum let-7c, let-7i, and let-7f demonstrated significant differences in the CON-AG-GC sequence (P = 0.017, P < 0.001, P = 0.003, respectively); let-7c was significantly lower in the AG group, and let-7i and let-7f were significantly higher in the GC group. Significantly different expressions of serum PGC were found among the three diseases, and also between AG vs. CON, and GC vs. CON (P = 0.027, P = 0.001, respectively). Linear-regression analysis suggested that serum let-7c was negatively correlated to the expression of PGC (r = -0.096, P = 0.047), and serum let-7c, let-7i, and let-7f showed no association with PGC expression in tissue. In addition, serum let-7c, let-7f, and let-7i showed significant correlations with environment factors. Serum let-7c, let-7i, and let-7f demonstrated significant differences in the CON-AG-GC disease sequence indicating that let-7 miRNA might have value by serving as potential biomarker in the diagnosis of GC or its precancerous diseases. There were significant negative correlations between serum let-7c and its target gene PGC expression.
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26
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Xie J, Tan ZH, Tang X, Mo MS, Liu YP, Gan RL, Li Y, Zhang L, Li GQ. miR-374b-5p suppresses RECK expression and promotes gastric cancer cell invasion and metastasis. World J Gastroenterol 2014; 20:17439-17447. [PMID: 25516656 PMCID: PMC4265603 DOI: 10.3748/wjg.v20.i46.17439] [Citation(s) in RCA: 54] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/17/2014] [Revised: 06/23/2014] [Accepted: 07/30/2014] [Indexed: 02/06/2023] Open
Abstract
AIM: To profile expression of microRNAs (miRNAs) in gastric cancer cells and investigate the effect of miR-374b-5p on gastric cancer cell invasion and metastasis.
METHODS: An miRNA microarray assay was performed to identify miRNAs differentially expressed in gastric cancer cell lines (MGC-803 and SGC-7901) compared with a normal gastric epithelial cell line. Upregulation of miR-374b-5p was newly identified and confirmed via quantitative real-time reverse transcription-PCR (qRT-PCR). MGC-803 cells were transfected with a synthesized anti-miR-374b-5p sequence or a control vector using Lipofectamine reagent, or treated with transfection reagent alone or phosphate-buffered saline as controls. Rate of transfection was verified after 48 h by qRT-PCR. Cells were then subjected to transwell migration, wound scratch and cell counting kit-8 assays. A bioinformatic analysis to identify miR-374b-5p target genes was performed using miRanda, PicTar and TargetScan software. A dual luciferase reporter assay was performed to evaluate the influence of miR-374b-5p on target gene activation, and qRT-PCR and Western blot were used to evaluate the levels of target mRNA and protein following transfection with miR-374b-5p antisense oligonucleotides.
RESULTS: The microarray profiling revealed downregulation of 14 (fold change < 0.667; P < 0.05) and upregulation of 12 (fold change > 1.50; P < 0.05) miRNAs in MGC-803 and SGC-7901 cells compared with GES-1 controls. The upregulation of miR-374b-5p (fold change = 1.75 and 1.64 in MGC-803 and SGC-7901, respectively; P < 0.05) was confirmed by qRT-PCR. Compared with the control groups, the restoration of miR-374b-5p expression with anti-miR-374b-5p significantly suppressed the metastasis, invasion and proliferation of MGC-803 cells. The bioinformatic analysis predicted that the 3’ untranslated region (UTR) of reversion-inducing cysteine-rich protein with Kazal motif (RECK) contains three miR-374b-5p target sequences. RECK was verified as a target gene in a dual luciferase reporter assay showing that activation of RECK 3’UTR-pmirGLO was increased by co-transfection with miR-374b-5p. Finally, transfection of miR-374b-5p antisense oligonucleotides increased mRNA and protein levels of RECK in MGC-803 cells (P < 0.05).
CONCLUSION: These findings indicate that upregulation of miR-374b-5p contributes to gastric cancer cell metastasis and invasion through inhibition of RECK expression.
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Wang R, Wen H, Xu Y, Chen Q, Luo Y, Lin Y, Luo Y, Xu A. Circulating microRNAs as a novel class of diagnostic biomarkers in gastrointestinal tumors detection: a meta-analysis based on 42 articles. PLoS One 2014; 9:e113401. [PMID: 25406082 PMCID: PMC4236157 DOI: 10.1371/journal.pone.0113401] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2014] [Accepted: 10/23/2014] [Indexed: 01/12/2023] Open
Abstract
OBJECTIVE MicroRNAs (miRNAs) have become the focus of most recent efforts in cancer research. However, there have been inconsistencies in the literature regarding the suitability of circulating miRNAs for early detection of gastrointestinal cancers. This study aims to assess the diagnostic performance of circulating miRNAs in detection of gastrointestinal cancer through a meta-analysis. METHODS Eligible studies were selected by conducting a systematic literature search of public databases. The sensitivity and specificity were used to plot the summary receiver operator characteristic (SROC) curve and calculate the area under the SROC curve (AUC). The between-study heterogeneity was evaluated by Q test and I2 statistics. Subgroup analyses and meta-regression were further performed to explore the potential sources of heterogeneity. All analyses were performed using the STATA 12.0 software. RESULTS A total of 107 studies from 42 articles were included for the meta-analysis according to the inclusion criteria. The overall analysis of all gastrointestinal cancers showed that circulating miRNAs have a relatively good diagnostic performance in gastrointestinal cancers, with a sensitivity of 0.75, a specificity of 0.81 and an AUC of 0.85. In addition, subgroup analyses based on different type of miRNA assay suggested that single-miRNA assay displayed a relatively low diagnostic performance with the AUC values of 0.84 for gastric cancer (GC) and 0.79 for colorectal cancer (CRC), while multiple-miRNAs assay significantly improved the diagnosing accuracy with AUC rising to 0.92 for GC and 0.89 for CRC. Another interesting finding was that plasma-based miRNA assay reach a higher accuracy compared with serum-based one for GC, while opposite conclusion was drawn for CRC. CONCLUSIONS In conclusion, circulating miRNAs, particularly the combination of multiple miRNAs, may present as promising biomarkers for the diagnosis of gastrointestinal cancers. Further large-scale prospective studies are necessary to validate their potential applicability in human cancer diagnosis.
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Affiliation(s)
- Ran Wang
- Department of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou, China
- Department of Ultrasound, HuiZhou Municipal Central Hospital, Huizhou, China
| | - Hong Wen
- Department of Ultrasound, HuiZhou Municipal Central Hospital, Huizhou, China
| | - Yongcheng Xu
- Department of Gastroenterology, HuiZhou Municipal Central Hospital, Huizhou, China
| | - Qiulan Chen
- Department of Ultrasound, HuiZhou Municipal Central Hospital, Huizhou, China
| | - Yi Luo
- Department of Ultrasound, HuiZhou Municipal Central Hospital, Huizhou, China
| | - Yiqin Lin
- Department of Ultrasound, HuiZhou Municipal Central Hospital, Huizhou, China
| | - Yu Luo
- Department of Ultrasound, HuiZhou Municipal Central Hospital, Huizhou, China
| | - Angao Xu
- Department of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou, China
- Department of Gastroenterology, HuiZhou Municipal Central Hospital, Huizhou, China
- * E-mail:
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28
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Diagnostic value of circulating microRNAs for gastric cancer in Asian populations: a meta-analysis. Tumour Biol 2014; 35:11995-2004. [DOI: 10.1007/s13277-014-2498-4] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2014] [Accepted: 08/13/2014] [Indexed: 12/21/2022] Open
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Yang H, Yu J, Wang L, Ding DI, Zhang L, Chu C, Chen Q, Xu Z, Zou Q, Liu X. miR-320a is an independent prognostic biomarker for invasive breast cancer. Oncol Lett 2014; 8:1043-1050. [PMID: 25120655 PMCID: PMC4114662 DOI: 10.3892/ol.2014.2298] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2013] [Accepted: 06/12/2014] [Indexed: 12/24/2022] Open
Abstract
Breast cancer is one of the most common malignancies worldwide and is the second leading cause of cancer-related mortality among females. miRNAs are a class of small noncoding RNAs that are aberrantly expressed in human cancers. Due to their small size and stability, miRNAs have the potential to be efficacious clinical targets. MicroRNA-320a (miR-320a) has been shown to be dysregulated in multiple malignancies. In the present study, the expression levels of miR-320a were investigated in 15 paraffin-embedded in situ breast carcinoma and 130 invasive breast cancer tissues, and the prognostic value for breast cancer patients was assessed. Chromogenic in situ hybridization revealed that 60/130 (46%) invasive breast cancer tissues exhibited high expression levels of miR-320a (staining index score of ≥4). Furthermore, miR-320a staining was found to significantly correlate with tumor size (P=0.046), clinical stage (P<0.001), lymph node metastasis (P<0.001) and distant metastasis (P=0.006). In addition, patients exhibiting low miR-320a expression levels had shorter overall survival times (P<0.001). Univariate and multivariate analyses revealed that miR-320a was an independent prognostic biomarker for invasive breast cancer (hazard ratio, 0.221; 95% confidence interval, 0.050–0.979; P=0.047). Receiver operator characteristic curves revealed that the prognostic value of miR-320a was enhanced when compared with the widely used prognostic biomarkers (estrogen receptor, progesterone receptor and human epidermal growth factor-2) in invasive breast cancer. The results of the present study suggest that miR-320a presents a potential biomarker for the prognosis of invasive breast cancer, and dysregulation of miR-320a may be involved in invasive breast cancer progression.
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Affiliation(s)
- Haiping Yang
- Department of Pathology, School of Basic Medical Sciences, Fudan University, Shanghai 200032, P.R. China
| | - Juan Yu
- Department of Pathology, School of Basic Medical Sciences, Fudan University, Shanghai 200032, P.R. China
| | - Lei Wang
- Department of Pathology, School of Basic Medical Sciences, Fudan University, Shanghai 200032, P.R. China
| | - DI Ding
- Department of Pathology, School of Basic Medical Sciences, Fudan University, Shanghai 200032, P.R. China
| | - Lei Zhang
- Department of Pathology, School of Basic Medical Sciences, Fudan University, Shanghai 200032, P.R. China
| | - Chengyu Chu
- Department of Surgery, Huashan Hospital, Fudan University, Shanghai 200040, P.R. China
| | - Qi Chen
- Department of Pathology, School of Basic Medical Sciences, Fudan University, Shanghai 200032, P.R. China
| | - Zude Xu
- Department of Pathology, School of Basic Medical Sciences, Fudan University, Shanghai 200032, P.R. China
| | - Qiang Zou
- Department of Surgery, Huashan Hospital, Fudan University, Shanghai 200040, P.R. China
| | - Xiuping Liu
- Department of Pathology, School of Basic Medical Sciences, Fudan University, Shanghai 200032, P.R. China ; Department of Pathology, The Fifth People's Hospital of Shanghai, Fudan University, Shanghai 200240, P.R. China
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