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Bahojb Mahdavi SZ, Jebelli A, Aghbash PS, Baradaran B, Amini M, Oroojalian F, Pouladi N, Baghi HB, de la Guardia M, Mokhtarzadeh AA. A comprehensive overview on the crosstalk between microRNAs and viral pathogenesis and infection. Med Res Rev 2024. [PMID: 39185567 DOI: 10.1002/med.22073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2021] [Revised: 04/11/2023] [Accepted: 08/04/2024] [Indexed: 08/27/2024]
Abstract
Infections caused by viruses as the smallest infectious agents, pose a major threat to global public health. Viral infections utilize different host mechanisms to facilitate their own propagation and pathogenesis. MicroRNAs (miRNAs), as small noncoding RNA molecules, play important regulatory roles in different diseases, including viral infections. They can promote or inhibit viral infection and have a pro-viral or antiviral role. Also, viral infections can modulate the expression of host miRNAs. Furthermore, viruses from different families evade the host immune response by producing their own miRNAs called viral miRNAs (v-miRNAs). Understanding the replication cycle of viruses and their relation with host miRNAs and v-miRNAs can help to find new treatments against viral infections. In this review, we aim to outline the structure, genome, and replication cycle of various viruses including hepatitis B, hepatitis C, influenza A virus, coronavirus, human immunodeficiency virus, human papillomavirus, herpes simplex virus, Epstein-Barr virus, Dengue virus, Zika virus, and Ebola virus. We also discuss the role of different host miRNAs and v-miRNAs and their role in the pathogenesis of these viral infections.
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Affiliation(s)
- Seyedeh Zahra Bahojb Mahdavi
- Department of Biology, Faculty of Basic Sciences, Azarbaijan Shahid Madani University, Tabriz, Iran
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Asiyeh Jebelli
- Department of Biological Science, Faculty of Basic Science, Higher Education Institute of Rab-Rashid, Tabriz, Iran
- Tuberculosis and Lung Diseases Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | | | - Behzad Baradaran
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mohammad Amini
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Fatemeh Oroojalian
- Department of Advanced Sciences and Technologies in Medicine, School of Medicine, North Khorasan University of Medical Sciences, Bojnurd, Iran
| | - Nasser Pouladi
- Department of Biology, Faculty of Basic Sciences, Azarbaijan Shahid Madani University, Tabriz, Iran
| | - Hossein Bannazadeh Baghi
- Department of Virology, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Miguel de la Guardia
- Department of Analytical Chemistry, University of Valencia, Burjassot, Valencia, Spain
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Scholte LL, Bethony JM, Xian RR. Diagnosis and monitoring of virus-associated cancer using cell-free DNA. Curr Opin Virol 2023; 60:101331. [PMID: 37187125 PMCID: PMC11411455 DOI: 10.1016/j.coviro.2023.101331] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Revised: 02/14/2023] [Accepted: 04/05/2023] [Indexed: 05/17/2023]
Abstract
Viral-associated cancers are a distinct group of malignancies with a unique pathogenesis and epidemiology. Liquid biopsy is a minimally invasive way to identify tumor-associated abnormalities in blood derivatives, such as plasma, to guide the diagnosis, prognosis, and treatment of patients with cancer. Liquid biopsy encompasses a multitude of circulating analytes with the most extensively studied being cell-free DNA (cfDNA). In recent decades, substantial advances have been made toward the study of circulating tumor DNA in nonviral-associated cancers. Many of these observations have been translated to the clinic to improve the outcomes of patients with cancer. The study of cfDNA in viral-associated cancers is rapidly evolving and reveals tremendous potential for clinical applications. This review provides an overview of the pathogenesis of viral-associated malignancies, the current state of cfDNA analysis in oncology, the current state of cfDNA analysis in viral-associated cancers, and perspectives for the future of liquid biopsies in viral-associated cancers.
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Affiliation(s)
- Larissa Ls Scholte
- Department of Microbiology, Immunology and Tropical Medicine, The George Washington University, Washington DC, United States
| | - Jeffrey M Bethony
- Department of Microbiology, Immunology and Tropical Medicine, The George Washington University, Washington DC, United States
| | - Rena R Xian
- Department of Pathology and Department of Oncology, Johns Hopkins School of Medicine, Baltimore, MD, United States; Department of Oncology, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins School of Medicine, Baltimore, MD, United States.
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Lin M, Hu S, Zhang T, Li J, Gao F, Zhang Z, Zheng K, Li G, Ren C, Chen X, Guo F, Zhang S. Effects of Co-Culture EBV-miR-BART1-3p on Proliferation and Invasion of Gastric Cancer Cells Based on Exosomes. Cancers (Basel) 2023; 15:2841. [PMID: 37345178 DOI: 10.3390/cancers15102841] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Revised: 05/05/2023] [Accepted: 05/12/2023] [Indexed: 06/23/2023] Open
Abstract
AIM EBV encodes at least 44 miRNAs involved in immune regulation and disease progression. Exosomes can be used as carriers of EBV-miRNA-BART intercellular transmission and affect the biological behavior of cells. We characterized exosomes and established a co-culture experiment of exosomes to explore the mechanism of miR-BART1-3p transmission through the exosome pathway and its influence on tumor cell proliferation and invasion. MATERIALS AND METHODS Exosomes of EBV-positive and EBV-negative gastric cancer cells were characterized by transmission electron microscopy. NanoSight and Western blotting, and miRNA expression profiles in exosomes were sequenced with high throughput. Exosomes with high or low expression of miR-BART1-3p were co-cultured with AGS cells to study the effects on proliferation, invasion, and migration of gastric cancer cells. The target genes of EBV-miR-BART1-3p were screened and predicted by PITA, miRanda, RNAhybrid, virBase, and DIANA-TarBase v.8 databases, and the expression of the target genes after co-culture was detected by qPCR. RESULTS The exosomes secreted by EBV-positive and negative gastric cancer cells range in diameter from 30 nm to 150 nm and express the exosomal signature proteins CD9 and CD63. Small RNA sequencing showed that exosomes expressed some human miRNAs, among which hsa-miR-23b-3p, hsa-miR-320a-3p, and hsa-miR-4521 were highly expressed in AGS-exo; hsa-miR-21-5p, hsa-miR-148a-3p, and hsa-miR-7-5p were highly expressed in SNU-719-exo. All EBV miRNAs were expressed in SNU-719 cells and their exosomes, among which EBV-miR-BART1-5p, EBV-miR-BART22, and EBV-miR-BART16 were the highest in SNU-719 cells; EBV-miR-BART1-5p, EBV-miR-BART10-3p, and EBV-miR-BART16 were the highest in SNU-719-exo. After miR-BART1-3p silencing in gastric cancer cells, the proliferation, healing, migration, and invasion of tumor cells were significantly improved. Laser confocal microscopy showed that exosomes could carry miRNA into recipient cells. After co-culture with miR-BART1-3p silenced exosomes, the proliferation, healing, migration, and invasion of gastric cancer cells were significantly improved. The target gene of miR-BART1-3p was FAM168A, MACC1, CPEB3, ANKRD28, and USP37 after screening by a targeted database. CPEB3 was not expressed in all exosome co-cultured cells, while ANKRD28, USP37, MACC1, and FAM168A were all expressed to varying degrees. USP37 and MACC1 were down-regulated after up-regulation of miR-BART1-3p, which may be the key target genes for miR-BART1-3p to regulate the proliferation of gastric cancer cells through exosomes. CONCLUSIONS miR-BART1-3p can affect the growth of tumor cells through the exosome pathway. The proliferation, healing, migration, and invasion of gastric cancer cells were significantly improved after co-culture with exosomes of miR-BART1-3p silenced expression. USP37 and MACC1 may be potential target genes of miR-BART1-3p in regulating cell proliferation.
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Affiliation(s)
- Mengyao Lin
- Department of Pathology, The First Affiliated Hospital, Fujian Medical University, 20 Chazhong Road, Fuzhou 350005, China
- Department of Pathology, National Regional Medical Center, Binhai Campus of the First Affiliated Hospital, Fujian Medical University, 999 Huashan Road, Fuzhou 350212, China
| | - Shun Hu
- Department of Pathology, The First Affiliated Hospital, Fujian Medical University, 20 Chazhong Road, Fuzhou 350005, China
- Department of Pathology, National Regional Medical Center, Binhai Campus of the First Affiliated Hospital, Fujian Medical University, 999 Huashan Road, Fuzhou 350212, China
| | - Tianyi Zhang
- Key Laboratory of Systems Biomedicine (Ministry of Education), Shanghai Center for Systems Biomedicine, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Jiezhen Li
- Department of Pathology, The First Affiliated Hospital, Fujian Medical University, 20 Chazhong Road, Fuzhou 350005, China
| | - Feng Gao
- Department of Pathology, The First Affiliated Hospital, Fujian Medical University, 20 Chazhong Road, Fuzhou 350005, China
- Department of Pathology, National Regional Medical Center, Binhai Campus of the First Affiliated Hospital, Fujian Medical University, 999 Huashan Road, Fuzhou 350212, China
| | - Zhenzhen Zhang
- Department of Pathology, The First Affiliated Hospital, Fujian Medical University, 20 Chazhong Road, Fuzhou 350005, China
- Department of Pathology, National Regional Medical Center, Binhai Campus of the First Affiliated Hospital, Fujian Medical University, 999 Huashan Road, Fuzhou 350212, China
| | - Ke Zheng
- Department of Pathology, The First Affiliated Hospital, Fujian Medical University, 20 Chazhong Road, Fuzhou 350005, China
- Department of Pathology, National Regional Medical Center, Binhai Campus of the First Affiliated Hospital, Fujian Medical University, 999 Huashan Road, Fuzhou 350212, China
| | - Guoping Li
- Department of Pathology, The First Affiliated Hospital, Fujian Medical University, 20 Chazhong Road, Fuzhou 350005, China
- Department of Pathology, National Regional Medical Center, Binhai Campus of the First Affiliated Hospital, Fujian Medical University, 999 Huashan Road, Fuzhou 350212, China
| | - Caihong Ren
- Department of Pathology, The First Affiliated Hospital, Fujian Medical University, 20 Chazhong Road, Fuzhou 350005, China
- Department of Pathology, National Regional Medical Center, Binhai Campus of the First Affiliated Hospital, Fujian Medical University, 999 Huashan Road, Fuzhou 350212, China
| | - Xiangna Chen
- Department of Pathology, The First Affiliated Hospital, Fujian Medical University, 20 Chazhong Road, Fuzhou 350005, China
- Department of Pathology, National Regional Medical Center, Binhai Campus of the First Affiliated Hospital, Fujian Medical University, 999 Huashan Road, Fuzhou 350212, China
| | - Fang Guo
- Key Laboratory of Systems Biomedicine (Ministry of Education), Shanghai Center for Systems Biomedicine, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Sheng Zhang
- Department of Pathology, The First Affiliated Hospital, Fujian Medical University, 20 Chazhong Road, Fuzhou 350005, China
- Department of Pathology, National Regional Medical Center, Binhai Campus of the First Affiliated Hospital, Fujian Medical University, 999 Huashan Road, Fuzhou 350212, China
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Weng S, Li M, Deng J, Xu H, Ren Y, Zhou Z, Wang L, Zhang Y, Xing Z, Li L, Liu Z, Han X. Epigenetically regulated gene expression profiles decipher four molecular subtypes with prognostic and therapeutic implications in gastric cancer. Clin Epigenetics 2023; 15:64. [PMID: 37061743 PMCID: PMC10105476 DOI: 10.1186/s13148-023-01478-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Accepted: 03/31/2023] [Indexed: 04/17/2023] Open
Abstract
BACKGROUND Gastric cancer (GC) is one of the most common malignant tumors of the digestive tract which seriously endangers the health of human beings worldwide. Transcriptomic deregulation by epigenetic mechanisms plays a crucial role in the heterogeneous progression of GC. This study aimed to investigate the impact of epigenetically regulated genes on the prognosis, immune microenvironment, and potential treatment of GC. RESULTS Under the premise of verifying significant co-regulation of the aberrant frequencies of microRNA (miRNA) correlated (MIRcor) genes and DNA methylation-correlated (METcor) genes. Four GC molecular subtypes were identified and validated by comprehensive clustering of MIRcor and METcor GEPs in 1521 samples from five independent multicenter GC cohorts: cluster 1 was characterized by up-regulated cell proliferation and transformation pathways, with good prognosis outcomes, driven by mutations, and was sensitive to 5-fluorouracil and paclitaxel; cluster 2 performed moderate prognosis and benefited more from apatinib and cisplatin; cluster 3 was featured by an up-regulated ligand-receptor formation-related pathways, poor prognosis, an immunosuppression phenotype with low tumor purity, resistant to chemotherapy (e.g., 5-fluorouracil, paclitaxel, and cisplatin), and targeted therapy drug (apatinib) and sensitive to dasatinib; cluster 4 was characterized as an immune-activating phenotype, with advanced tumor stages, benefit more from immunotherapy and displayed worst prognosis. CONCLUSIONS According to the epigenetically regulated GEPs, we developed four robust GC molecular subtypes, which facilitated the understanding of the epigenetic mechanisms underlying GC heterogeneity, offering an optimized decision-making and surveillance platform for GC patients.
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Affiliation(s)
- Siyuan Weng
- Department of Interventional Radiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, Henan, China
- Interventional Treatment and Clinical Research Center of Henan Province, Zhengzhou, 450052, Henan, China
| | - Minghao Li
- Department of Hepatobiliary and Pancreatic Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Jinhai Deng
- Richard Dimbleby Laboratory of Cancer Research, School of Cancer and Pharmaceutical Sciences, King's College London, London, SE1 1UL, UK
| | - Hui Xu
- Department of Interventional Radiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, Henan, China
- Interventional Treatment and Clinical Research Center of Henan Province, Zhengzhou, 450052, Henan, China
| | - Yuqing Ren
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Zhaokai Zhou
- Department of Urologic Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, Henan, China
| | - Libo Wang
- Department of Hepatobiliary and Pancreatic Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Yuyuan Zhang
- Department of Interventional Radiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, Henan, China
- Interventional Treatment and Clinical Research Center of Henan Province, Zhengzhou, 450052, Henan, China
| | - Zhe Xing
- Department of Neurosurgery, The Fifth Affiliated Hospital of Zhengzhou University, Henan, China
| | - Lifeng Li
- Medical School, Huanghe Science and Technology University, 666 Zi Jing Shan Road, Zhengzhou, 450000, Henan, China.
| | - Zaoqu Liu
- Department of Interventional Radiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, Henan, China.
- Interventional Treatment and Clinical Research Center of Henan Province, Zhengzhou, 450052, Henan, China.
| | - Xinwei Han
- Department of Interventional Radiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, Henan, China.
- Interventional Treatment and Clinical Research Center of Henan Province, Zhengzhou, 450052, Henan, China.
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Yan Y, Wu Z, Chen X. miR-125b Promotes the Proliferation, Migration and Invasion of Oral Squamous Cell Carcinoma (OSCC). J BIOMATER TISS ENG 2022. [DOI: 10.1166/jbt.2022.3185] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
miR-125b is involved in several tumors. However, miR-125b’s role in oral squamous cell carcinoma (OSCC) is unclear. Tumor tissues and oral normal mucosa tissues of OSCC patients were collected to measure miR-125b level. Oral cancer Tca8113 cells were separated into control group,
miR-125b inhibitor group, and miR-125b mimics group, followed by measuring miR-125b level by real time PCR, cell survival, migration and invasion, PI3K/mTOR signaling protein level by Western blot. miR-125b was upregulated in OSCC tumor tissues and related to clinical/TNM stage, metastasis
and overall survival (P < 0.05). miR-125b overexpression significantly promoted tumor cell behaviors and increased PI3K/mTOR phosphorylation (P < 0.05); while inhibiting miR-125b expression significantly inhibited tumor cell biological behaviors, and decreased PI3K/mTOR
phosphorylation (P < 0.05). miR-125b level is increased in OSCC tumor tissues, which is related to clinicopathological characteristics. miR-125b overexpression promotes OSCC cell behaviors by regulating PI3K/mTOR signaling.
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Affiliation(s)
- Yan Yan
- Department of Stomatology, Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan, 637000, China
| | - Zengbo Wu
- Department of Stomatology, Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan, 637000, China
| | - Xianzhuo Chen
- Department of Stomatology, Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan, 637000, China
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Varkalaite G, Vaitkeviciute E, Inciuraite R, Salteniene V, Juzenas S, Petkevicius V, Gudaityte R, Mickevicius A, Link A, Kupcinskas L, Leja M, Kupcinskas J, Skieceviciene J. Atrophic gastritis and gastric cancer tissue miRNome analysis reveals hsa-miR-129-1 and hsa-miR-196a as potential early diagnostic biomarkers. World J Gastroenterol 2022; 28:653-664. [PMID: 35317427 PMCID: PMC8900545 DOI: 10.3748/wjg.v28.i6.653] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Revised: 11/19/2021] [Accepted: 01/20/2022] [Indexed: 01/29/2023] Open
Abstract
BACKGROUND Gastric cancer (GC) is one of the most frequently diagnosed tumor globally. In most cases, GC develops in a stepwise manner from chronic gastritis or atrophic gastritis (AG) to cancer. One of the major issues in clinical settings of GC is diagnosis at advanced disease stages resulting in poor prognosis. MicroRNAs (miRNAs) are small noncoding molecules that play an essential role in a variety of fundamental biological processes. However, clinical potential of miRNA profiling in the gastric cancerogenesis, especially in premalignant GC cases, remains unclear.
AIM To evaluate the AG and GC tissue miRNomes and identify specific miRNAs’ potential for clinical applications (e.g., non-invasive diagnostics).
METHODS Study included a total of 125 subjects: Controls (CON), AG, and GC patients. All study subjects were recruited at the Departments of Surgery or Gastroenterology, Hospital of Lithuanian University of Health Sciences and divided into the profiling (n = 60) and validation (n = 65) cohorts. Total RNA isolated from tissue samples was used for preparation of small RNA sequencing libraries and profiled using next-generation sequencing (NGS). Based on NGS data, deregulated miRNAs hsa-miR-129-1-3p and hsa-miR-196a-5p were analyzed in plasma samples of independent cohort consisting of CON, AG, and GC patients. Expression level of hsa-miR-129-1-3p and hsa-miR-196a-5p was determined using the quantitative real-time polymerase chain reaction and 2-ΔΔCt method.
RESULTS Results of tissue analysis revealed 20 differentially expressed miRNAs in AG group compared to CON group, 129 deregulated miRNAs in GC compared to CON, and 99 altered miRNAs comparing GC and AG groups. Only 2 miRNAs (hsa-miR-129-1-3p and hsa-miR-196a-5p) were identified to be step-wise deregulated in healthy-premalignant-malignant sequence. Area under the curve (AUC)-receiver operating characteristic analysis revealed that expression level of hsa-miR-196a-5p is significant for discrimination of CON vs AG, CON vs GC and AG vs GC and resulted in AUCs: 88.0%, 93.1% and 66.3%, respectively. Compar-ing results in tissue and plasma samples, hsa-miR-129-1-3p was significantly down-regulated in GC compared to AG (P = 0.0021 and P = 0.024, tissue and plasma, respectively). Moreover, analysis revealed that hsa-miR-215-3p/5p and hsa-miR-934 were significantly deregulated in GC based on Helicobacter pylori (H. pylori) infection status [log2 fold change (FC) = -4.52, P-adjusted = 0.02; log2FC = -4.00, P-adjusted = 0.02; log2FC = 6.09, P-adjusted = 0.02, respectively].
CONCLUSION Comprehensive miRNome study provides evidence for gradual deregulation of hsa-miR-196a-5p and hsa-miR-129-1-3p in gastric carcinogenesis and found hsa-miR-215-3p/5p and hsa-miR-934 to be significantly deregulated in H. pylori carrying GC patients.
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Affiliation(s)
- Greta Varkalaite
- Institute for Digestive Research, Lithuanian University of Health Sciences, Kaunas 44307, Lithuania
| | - Evelina Vaitkeviciute
- Institute for Digestive Research, Lithuanian University of Health Sciences, Kaunas 44307, Lithuania
| | - Ruta Inciuraite
- Institute for Digestive Research, Lithuanian University of Health Sciences, Kaunas 44307, Lithuania
| | - Violeta Salteniene
- Institute for Digestive Research, Lithuanian University of Health Sciences, Kaunas 44307, Lithuania
| | - Simonas Juzenas
- Institute for Digestive Research, Lithuanian University of Health Sciences, Kaunas 44307, Lithuania
| | - Vytenis Petkevicius
- Department of Gastroenterology, Lithuanian University of Health Sciences, Kaunas 44307, Lithuania
| | - Rita Gudaityte
- Department of Surgery, Lithuanian University of Health Sciences, Kaunas 44307, Lithuania
| | - Antanas Mickevicius
- Department of Surgery, Lithuanian University of Health Sciences, Kaunas 44307, Lithuania
| | - Alexander Link
- Department of Gastroenterology, Hepatology and Infectious Diseases, Otto-von-Guericke University Hospital, Magdeburg 39120, Germany
| | - Limas Kupcinskas
- Institute for Digestive Research, Lithuanian University of Health Sciences, Kaunas 44307, Lithuania
| | - Marcis Leja
- Institute of Clinical and Preventive Medicine & Faculty of Medicine, University of Latvia, Riga 1586, Latvia
| | - Juozas Kupcinskas
- Department of Gastroenterology, Lithuanian University of Health Sciences, Kaunas 44307, Lithuania
| | - Jurgita Skieceviciene
- Institute for Digestive Research, Lithuanian University of Health Sciences, Kaunas 44307, Lithuania
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Cheng X, Wei H, Zhang S, Zhang F. Predictive and Prognostic Value of an MicroRNA Signature for Gastric Carcinoma Undergoing Adjuvant Chemotherapy. DNA Cell Biol 2021; 40:1428-1444. [PMID: 34767733 DOI: 10.1089/dna.2021.0377] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Gastric carcinoma (GC) is one of the most common cause of tumor-related death. Chemotherapy resistance usually occurs, leading to cancer relapse and poor survival of GC patients. To investigate the role of miRNAs in chemotherapy resistance for GC patients, we conducted an integrated analysis of miRNA expression and survival information using data obtained from The Cancer Genome Atlas project. Genome-wide screening of chemotherapy response-specific miRNAs was performed using Cox proportional hazards regression analyses for patients who received chemotherapy or those who had never received chemotherapy, respectively. A four-miRNA expression signature (involving two protective miRNAs, miR-200b and miR-103a, and two risk ones miR-199 and miR-152) was predicted as a specific indicator for GC chemoresistance (p = 0.00053; hazard ratio = 8.63), outperforming those clinicopathological factors. Functional experiments confirmed the roles of these signature miRNAs in regulation of chemotherapy response. Functional enrichment of these signature miRNAs and risk score revealed positive association with epithelial-mesenchymal transition (EMT), and negative association with cell cycle checkpoint and DNA damage response. Furthermore, the immune infiltration-miRNA functional network analysis revealed transformation from activated effector cells to resting immunosuppressive cells are preferred in GCs with adverse chemotherapy response. In summary, our work identifies a four-miRNA expression signature as a promising chemoresistance biomarker in GC, which provides novel insights into developing new strategies to overcome GC chemoresistance.
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Affiliation(s)
- Xiaowei Cheng
- Department of Medical Oncology, Affiliated Hospital of Jiangnan University, Wuxi City, People's Republic of China
| | - Hongkuang Wei
- The Maternal and Child Health Hospital of Guangxi Zhuang Autonomous Region, Nanning City, People's Republic of China
| | - Sheng Zhang
- Wuxi Eighth People's Hospital, Wuxi City, People's Republic of China
| | - Fuzheng Zhang
- Department of Radiation Oncology, Affiliated Hospital of Jiangnan University, Wuxi City, People's Republic of China
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MicroRNA and Other Non-Coding RNAs in Epstein-Barr Virus-Associated Cancers. Cancers (Basel) 2021; 13:cancers13153909. [PMID: 34359809 PMCID: PMC8345394 DOI: 10.3390/cancers13153909] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Revised: 07/27/2021] [Accepted: 08/01/2021] [Indexed: 12/12/2022] Open
Abstract
EBV is a direct causative agent in around 1.5% of all cancers. The oncogenic properties of EBV are related to its ability to activate processes needed for cellular proliferation, survival, migration, and immune evasion. The EBV latency program is required for the immortalization of infected B cells and involves the expression of non-coding RNAs (ncRNAs), including viral microRNAs. These ncRNAs have different functions that contribute to virus persistence in the asymptomatic host and to the development of EBV-associated cancers. In this review, we discuss the function and potential clinical utility of EBV microRNAs and other ncRNAs in EBV-associated malignancies. This review is not intended to be comprehensive, but rather to provide examples of the importance of ncRNAs.
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9
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Wang Z, Lv Z, Xu Q, Sun L, Yuan Y. Identification of differential proteomics in Epstein-Barr virus-associated gastric cancer and related functional analysis. Cancer Cell Int 2021; 21:368. [PMID: 34247602 PMCID: PMC8274036 DOI: 10.1186/s12935-021-02077-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2021] [Accepted: 07/05/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Epstein-Barr virus-associated gastric cancer (EBVaGC) is the most common EBV-related malignancy. A comprehensive research for the protein expression patterns in EBVaGC established by high-throughput assay remains lacking. In the present study, the protein profile in EBVaGC tissue was explored and related functional analysis was performed. METHODS Epstein-Barr virus-encoded RNA (EBER) in situ hybridization (ISH) was applied to EBV detection in GC cases. Data-independent acquisition (DIA) mass spectrometry (MS) was performed for proteomics assay of EBVaGC. Functional analysis of identified proteins was conducted with bioinformatics methods. Immunohistochemistry (IHC) staining was employed to detect protein expression in tissue. RESULTS The proteomics study for EBVaGC was conducted with 7 pairs of GC cases. A total of 137 differentially expressed proteins in EBV-positive GC group were identified compared with EBV-negative GC group. A PPI network was constructed for all of them, and several proteins with relatively high interaction degrees could be the hub genes in EBVaGC. Gene enrichment analysis showed they might be involved in the biological pathways related to energy and biochemical metabolism. Combined with GEO datasets, a highly associated protein (GBP5) with EBVaGC was screened out and validated with IHC staining. Further analyses demonstrated that GBP5 protein might be associated with clinicopathological parameters and EBV infection in GC. CONCLUSIONS The newly identified proteins with significant differences and potential central roles could be applied as diagnostic markers of EBVaGC. Our study would provide research clues for EBVaGC pathogenesis as well as novel targets for the molecular-targeted therapy of EBVaGC.
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Affiliation(s)
- Zeyang Wang
- Tumor Etiology and Screening Department of Cancer Institute and General Surgery, The First Hospital of China Medical University, No.155 NanjingBei Street, Heping District, Shenyang, 110001, Liaoning Province, China.,Key Laboratory of Cancer Etiology and Prevention in Liaoning Education Department, The First Hospital of China Medical University, Shenyang, 110001, China.,Key Laboratory of GI Cancer Etiology and Prevention in Liaoning Province, The First Hospital of China Medical University, Shenyang, 110001, China
| | - Zhi Lv
- Tumor Etiology and Screening Department of Cancer Institute and General Surgery, The First Hospital of China Medical University, No.155 NanjingBei Street, Heping District, Shenyang, 110001, Liaoning Province, China.,Key Laboratory of Cancer Etiology and Prevention in Liaoning Education Department, The First Hospital of China Medical University, Shenyang, 110001, China.,Key Laboratory of GI Cancer Etiology and Prevention in Liaoning Province, The First Hospital of China Medical University, Shenyang, 110001, China
| | - Qian Xu
- Tumor Etiology and Screening Department of Cancer Institute and General Surgery, The First Hospital of China Medical University, No.155 NanjingBei Street, Heping District, Shenyang, 110001, Liaoning Province, China.,Key Laboratory of Cancer Etiology and Prevention in Liaoning Education Department, The First Hospital of China Medical University, Shenyang, 110001, China.,Key Laboratory of GI Cancer Etiology and Prevention in Liaoning Province, The First Hospital of China Medical University, Shenyang, 110001, China
| | - Liping Sun
- Tumor Etiology and Screening Department of Cancer Institute and General Surgery, The First Hospital of China Medical University, No.155 NanjingBei Street, Heping District, Shenyang, 110001, Liaoning Province, China.,Key Laboratory of Cancer Etiology and Prevention in Liaoning Education Department, The First Hospital of China Medical University, Shenyang, 110001, China.,Key Laboratory of GI Cancer Etiology and Prevention in Liaoning Province, The First Hospital of China Medical University, Shenyang, 110001, China
| | - Yuan Yuan
- Tumor Etiology and Screening Department of Cancer Institute and General Surgery, The First Hospital of China Medical University, No.155 NanjingBei Street, Heping District, Shenyang, 110001, Liaoning Province, China. .,Key Laboratory of Cancer Etiology and Prevention in Liaoning Education Department, The First Hospital of China Medical University, Shenyang, 110001, China. .,Key Laboratory of GI Cancer Etiology and Prevention in Liaoning Province, The First Hospital of China Medical University, Shenyang, 110001, China.
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10
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Ernst LM, Mithal LB, Mestan K, Wang V, Mangold KA, Freedman A, Das S. Umbilical cord miRNAs to predict neonatal early onset sepsis. PLoS One 2021; 16:e0249548. [PMID: 33961620 PMCID: PMC8104380 DOI: 10.1371/journal.pone.0249548] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Accepted: 03/21/2021] [Indexed: 11/19/2022] Open
Abstract
OBJECTIVE To determine if miRNA (miR) expression in umbilical cord blood and umbilical cord tissue differs between neonates with early onset sepsis (EOS) versus neonates without true infection. METHODS Retrospective case-control study design of human patients with EOS (n = 8), presumed sepsis (N = 12) and non-infected control patients (N = 21). Differential expression of >300 miRs was examined using the MIHS-3001ZE-miScript miRNA PCR Array Human miFinder 384HC. Expression levels of miRs were normalized using the global Ct mean of expressed miR and compared between groups. Data analysis was performed using GeneGlobe data analysis software. Ratios of over and under-expressed miRs were calculated and compared between groups using receiver operating characteristic (ROC) curves. RESULTS Both umbilical cord plasma and umbilical cord tissue revealed several miRs with differential expression with little overlap between the two specimen types. The most overexpressed miR in plasma of EOS patients was miR-211-5p and the most overexpressed in EOS cord tissue was miR-223-5p. ROC curves comparing the ratios of over and under-expressed miRs for EOS patients and controls resulted in an area under the curve of 0.787 for cord plasma (miR-211-5p/miR-142-3p) and 0.988 for umbilical cord tissue (miR-223-5p/miR-22-3p), indicating good discrimination. CONCLUSIONS miRs show differential expression in EOS versus non-infected controls and presumed sepsis. A ratio of over and under-expressed miRs can provide a potentially sensitive and specific diagnostic test for EOS.
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Affiliation(s)
- Linda M. Ernst
- Department of Pathology and Laboratory Medicine, NorthShore University HealthSystem, Evanston, IL, United States of America
- Department of Pathology, University of Chicago Pritzker School of Medicine, Chicago, IL, United States of America
| | - Leena B. Mithal
- Division of Infectious Diseases, Department of Pediatrics, Northwestern University Feinberg School of Medicine, Ann & Robert H. Lurie Children’s Hospital of Chicago, Chicago, IL, United States of America
| | - Karen Mestan
- Division of Neonatology, Department of Pediatrics, Northwestern University Feinberg School of Medicine, Ann & Robert H. Lurie Children’s Hospital of Chicago, Chicago, IL, United States of America
| | - Vivien Wang
- Department of Pathology and Laboratory Medicine, NorthShore University HealthSystem, Evanston, IL, United States of America
| | - Kathy A. Mangold
- Department of Pathology and Laboratory Medicine, NorthShore University HealthSystem, Evanston, IL, United States of America
- Department of Pathology, University of Chicago Pritzker School of Medicine, Chicago, IL, United States of America
| | - Alexa Freedman
- Institute for Policy Research, Northwestern University, Evanston, IL, United States of America
- Department of Obstetrics and Gynecology, NorthShore University HealthSystem, Evanston, IL, United States of America
| | - Sanchita Das
- Department of Pathology and Laboratory Medicine, NorthShore University HealthSystem, Evanston, IL, United States of America
- Department of Pathology, University of Chicago Pritzker School of Medicine, Chicago, IL, United States of America
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11
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Rahnama S, Bakhshinejad B, Farzam F, Bitaraf A, Ghazimoradi MH, Babashah S. Identification of dysregulated competing endogenous RNA networks in glioblastoma: A way toward improved therapeutic opportunities. Life Sci 2021; 277:119488. [PMID: 33862117 DOI: 10.1016/j.lfs.2021.119488] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Revised: 03/16/2021] [Accepted: 04/04/2021] [Indexed: 12/17/2022]
Abstract
Glioblastoma is recognized as one of the leading causes of death worldwide. Although there have been considerable advancements in understanding the causative molecular mechanisms of this malignancy, effective therapeutic strategies are still in limited use. It has been revealed that non-coding RNAs (ncRNAs) play critical roles in glioblastoma development, while interactions between the regulatory molecules such as long ncRNAs (lncRNAs), microRNAs (miRNAs), transcribed pseudogenes, and circular RNAs (circRNAs) remain to be fully deciphered. Over the recent years, researchers have discovered a new category of RNA molecules called competing endogenous RNA (ceRNA). This kind of RNA can contribute to molecular interactions in the form of ceRNA networks (ceRNETs). Multiple lines of evidence have demonstrated that dysregulation of various ceRNA networks is involved in glioblastoma development. Therefore, gaining insights into these dysregulations might offer potential for the early diagnosis of glioblastoma patients and identification of efficient therapeutic targets. In this review, we provide an overview of recent discoveries on ceRNA networks and the involvement of dysregulated networks in posing limitations to temozolomide therapy. We also describe signaling pathways relevant to the progression of glioblastoma.
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Affiliation(s)
- Saghar Rahnama
- Department of Molecular Genetics, Faculty of Biological Sciences, Tarbiat Modares University, Tehran, Iran
| | - Babak Bakhshinejad
- Department of Molecular Genetics, Faculty of Biological Sciences, Tarbiat Modares University, Tehran, Iran
| | - Farnoosh Farzam
- Department of Biochemistry, Faculty of Biological Sciences, Tarbiat Modares University, Tehran, Iran
| | - Amirreza Bitaraf
- Department of Molecular Genetics, Faculty of Biological Sciences, Tarbiat Modares University, Tehran, Iran
| | | | - Sadegh Babashah
- Department of Molecular Genetics, Faculty of Biological Sciences, Tarbiat Modares University, Tehran, Iran.
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12
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Jonaitis P, Kiudelis V, Streleckiene G, Gedgaudas R, Skieceviciene J, Kupcinskas J. Novel Biomarkers in the Diagnosis of Benign and Malignant Gastrointestinal Diseases. Dig Dis 2021; 40:1-13. [PMID: 33647906 DOI: 10.1159/000515522] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Accepted: 02/26/2021] [Indexed: 02/02/2023]
Abstract
BACKGROUND Various noninvasive biomarkers have been used in the diagnosis, prognosis, and treatment of different gastrointestinal (GI) diseases for years. Novel technological developments and profound perception of molecular processes related to GI diseases over the last decade have allowed researchers to evaluate genetic, epigenetic, and many other potential molecular biomarkers in different diseases and clinical settings. Here, we present a review of recent and most relevant articles in order to summarize major findings on novel biomarkers in the diagnosis of benign and malignant GI diseases. SUMMARY Genetic variations, noncoding RNAs (ncRNAs), cell-free DNA (cfDNA), and microbiome-based biomarkers have been extensively analyzed as potential biomarkers in benign and malignant GI diseases. Multiple single-nucleotide polymorphisms have been linked with a number of GI diseases, and these observations are further being used to build up disease-specific genetic risk scores. Micro-RNAs and long ncRNAs have a large potential as noninvasive biomarkers in the management of inflammatory bowel diseases and GI tumors. Altered microbiome profiles were observed in multiple GI diseases, but most of the findings still lack translational clinical application. As of today, cfDNA appears to be the most potent biomarker for early detection and screening of GI cancers. Key Messages: Novel noninvasive molecular biomarkers show huge potential as useful tools in the diagnostics and management of different GI diseases. However, the use of these biomarkers in real-life clinical practice still remains limited, and further large studies are needed to elucidate the ultimate role of these potential noninvasive clinical tools.
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Affiliation(s)
- Paulius Jonaitis
- Department of Gastroenterology and Institute for Digestive Research, Lithuanian University of Health Sciences, Kaunas, Lithuania
| | - Vytautas Kiudelis
- Department of Gastroenterology and Institute for Digestive Research, Lithuanian University of Health Sciences, Kaunas, Lithuania
| | - Greta Streleckiene
- Department of Gastroenterology and Institute for Digestive Research, Lithuanian University of Health Sciences, Kaunas, Lithuania
| | - Rolandas Gedgaudas
- Department of Gastroenterology and Institute for Digestive Research, Lithuanian University of Health Sciences, Kaunas, Lithuania
| | - Jurgita Skieceviciene
- Department of Gastroenterology and Institute for Digestive Research, Lithuanian University of Health Sciences, Kaunas, Lithuania
| | - Juozas Kupcinskas
- Department of Gastroenterology and Institute for Digestive Research, Lithuanian University of Health Sciences, Kaunas, Lithuania
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13
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Torres K, Landeros N, Wichmann IA, Polakovicova I, Aguayo F, Corvalan AH. EBV miR-BARTs and human lncRNAs: Shifting the balance in competing endogenous RNA networks in EBV-associated gastric cancer. Biochim Biophys Acta Mol Basis Dis 2021; 1867:166049. [PMID: 33401001 DOI: 10.1016/j.bbadis.2020.166049] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Revised: 12/04/2020] [Accepted: 12/14/2020] [Indexed: 02/06/2023]
Abstract
Non-coding RNAs (ncRNAs) contribute to the regulation of gene expression. By acting as competing endogenous RNA (ceRNA), long non-coding RNAs (lncRNAs) hijack microRNAs (miRNAs) and inhibit their ability to bind their coding targets. Viral miRNAs can compete with and target the same transcripts as human miRNAs, shifting the balance in networks associated with multiple cellular processes and diseases. Epstein-Barr virus (EBV) is an example of how a subset of viral coding RNA and non-coding RNAs can cause deregulation of human transcripts and contribute to the development of EBV-associated malignancies. EBV non-coding transforming genes include lncRNAs (i.e circular RNAs), and small ncRNAs (i.e. miRNAs). Among the latter, most ongoing research has focused on miR-BARTs whereas target many genes associated with apoptosis and epithelial-mesenchymal transition, in EBV-associated gastric cancer (GC). In this review, we propose to include the interactions between EBV ncRNAs human transcripts in the hypothesis known as "competitive viral and host RNAs". These interactions may shift the balance in biological pathways such as apoptosis and epithelial-mesenchymal transition in EBV-associated gastric cancer.
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Affiliation(s)
- Keila Torres
- Advanced Center for Chronic Diseases, Pontificia Universidad Católica de Chile, Santiago, Chile; UC Center for Investigational Oncology, Pontificia Universidad Católica de Chile, Santiago, Chile; Department of Hematology-Oncology, School of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Natalia Landeros
- Advanced Center for Chronic Diseases, Pontificia Universidad Católica de Chile, Santiago, Chile; UC Center for Investigational Oncology, Pontificia Universidad Católica de Chile, Santiago, Chile; Department of Hematology-Oncology, School of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Ignacio A Wichmann
- Advanced Center for Chronic Diseases, Pontificia Universidad Católica de Chile, Santiago, Chile; UC Center for Investigational Oncology, Pontificia Universidad Católica de Chile, Santiago, Chile; Department of Hematology-Oncology, School of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Iva Polakovicova
- Advanced Center for Chronic Diseases, Pontificia Universidad Católica de Chile, Santiago, Chile; UC Center for Investigational Oncology, Pontificia Universidad Católica de Chile, Santiago, Chile; Department of Hematology-Oncology, School of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Francisco Aguayo
- Advanced Center for Chronic Diseases, Universidad de Chile, Santiago, Chile; Virology Program, Institute of Biomedical Sciences, Faculty of Medicine, Universidad de Chile, Santiago, Chile
| | - Alejandro H Corvalan
- Advanced Center for Chronic Diseases, Pontificia Universidad Católica de Chile, Santiago, Chile; UC Center for Investigational Oncology, Pontificia Universidad Católica de Chile, Santiago, Chile; Department of Hematology-Oncology, School of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile.
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14
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Sun K, Jia K, Lv H, Wang SQ, Wu Y, Lei H, Chen X. EBV-Positive Gastric Cancer: Current Knowledge and Future Perspectives. Front Oncol 2020; 10:583463. [PMID: 33381453 PMCID: PMC7769310 DOI: 10.3389/fonc.2020.583463] [Citation(s) in RCA: 85] [Impact Index Per Article: 21.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Accepted: 09/09/2020] [Indexed: 12/16/2022] Open
Abstract
Gastric cancer is the fifth most common malignant tumor and second leading cause of cancer-related deaths worldwide. With the improved understanding of gastric cancer, a subset of gastric cancer patients infected with Epstein–Barr virus (EBV) has been identified. EBV-positive gastric cancer is a type of tumor with unique genomic aberrations, significant clinicopathological features, and a good prognosis. After EBV infects the human body, it first enters an incubation period in which the virus integrates its DNA into the host and expresses the latent protein and then affects DNA methylation through miRNA under the action of the latent protein, which leads to the occurrence of EBV-positive gastric cancer. With recent developments in immunotherapy, better treatment of EBV-positive gastric cancer patients appears achievable. Moreover, studies show that treatment with immunotherapy has a high effective rate in patients with EBV-positive gastric cancer. This review summarizes the research status of EBV-positive gastric cancer in recent years and indicates areas for improvement of clinical practice.
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Affiliation(s)
- Keran Sun
- Department of Oncology, The Affiliated Cancer Hospital of Zhengzhou University, Henan Cancer Hospital, Zhengzhou, China
| | - Keqi Jia
- Department of Pathology, Pathology Department of Hebei Medical University, Shijiazhuang, China
| | - Huifang Lv
- Department of Oncology, The Affiliated Cancer Hospital of Zhengzhou University, Henan Cancer Hospital, Zhengzhou, China
| | - Sai-Qi Wang
- Department of Oncology, The Affiliated Cancer Hospital of Zhengzhou University, Henan Cancer Hospital, Zhengzhou, China
| | - Yan Wu
- Department of Oncology, The Affiliated Cancer Hospital of Zhengzhou University, Henan Cancer Hospital, Zhengzhou, China
| | - Huijun Lei
- Department of Oncology, The Affiliated Cancer Hospital of Zhengzhou University, Henan Cancer Hospital, Zhengzhou, China
| | - Xiaobing Chen
- Department of Oncology, The Affiliated Cancer Hospital of Zhengzhou University, Henan Cancer Hospital, Zhengzhou, China
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15
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Abdi E, Latifi-Navid S, Abdi F, Taherian-Esfahani Z. Emerging circulating MiRNAs and LncRNAs in upper gastrointestinal cancers. Expert Rev Mol Diagn 2020; 20:1121-1138. [DOI: 10.1080/14737159.2020.1842199] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Esmat Abdi
- Department of Biology, Faculty of Sciences, University of Mohaghegh Ardabili, Ardabil, Iran
| | - Saeid Latifi-Navid
- Department of Biology, Faculty of Sciences, University of Mohaghegh Ardabili, Ardabil, Iran
| | - Fatemeh Abdi
- Department of Engineering Sciences, Faculty of Advanced Technologies, University of Mohaghegh Ardabili, Namin, Iran
| | - Zahra Taherian-Esfahani
- Medical Genetics Laboratory, Alzahra University Hospital, Isfahan University of Medical Sciences, Isfahan, Iran
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16
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Dong A, Zhang J, Sun W, Hua H, Sun Y. Upregulation of miR-421 predicts poor prognosis and promotes proliferation, migration, and invasion of papillary thyroid cancer cells. J Chin Med Assoc 2020; 83:991-996. [PMID: 32881717 PMCID: PMC7647428 DOI: 10.1097/jcma.0000000000000426] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
BACKGROUND Papillary thyroid carcinoma (PTC) represents the most frequent subtype of thyroid cancer (TC) with poor prognosis mainly due to the severe invasion and metastasis. As an oncogene, microRNA-421 (miR-421) is involved in the development of various cancers. This study was to investigate the clinical significance of miR-421 in PTC and its effects on the biological function of PTC cells. METHODS The expression level of miR-421 in all tissues and PTC cell lines was measured by quantitative real-time polymerase chain reaction (qRT-PCR). Subsequently, the relationship between miR-421 expression and the clinicopathological feature was detected by chi-square analysis in 106 patients with PTC. In addition, Kaplan-Meier and multivariate Cox regression analysis were used to detect the survival time and the prognostic value of miR-421. Finally, the regulatory effect of miR-421 on the proliferation, migration, and invasion ability of PTC cells was detected by Cell Counting Kit (CCK-8) and Transwell assay. RESULTS Compared with all control groups, the expression of miR-421 was significantly increased in 106 patients tissues and PTC cell lines (p < 0.001). In addition, patients with miR-421 upregulated in PTC showed more positive lymph node metastasis (p = 0.011), positive tumor infiltration (p = 0.031), and TNM stage III/IV (p = 0.019), and when miR-421 expression level was elevated, the survival rate of PTC patients was poor (log-rank test, p = 0.023). Furthermore, miR-421 might be an independent prognostic biomarker for PTC (hazard ratio [HR] = 3.172, 95% CI = 1.071-9.393, p = 0.037). Finally, increased levels of miR-421 can significantly promote cell proliferation, migration, and invasion (p < 0.01). CONCLUSION miR-421 is a novel oncogene of PTC and is a valuable prognostic biomarker. Moreover, the upregulation of miR-421 enhances the proliferation, migration, and invasion of PTC cells.
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Affiliation(s)
- Anbing Dong
- Department of Thyroid Surgery, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
| | - Jianhua Zhang
- Department of Thyroid Surgery, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
| | - Wenhai Sun
- Department of Thyroid Surgery, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
| | - Hui Hua
- Department of Thyroid Surgery, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
| | - Yinghe Sun
- Department of Thyroid Surgery, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
- Address correspondence. Dr. Yinghe Sun, Department of Thyroid Surgery, The Affiliated Hospital of Qingdao University, 16, Jiangsu Road, Qingdao, Shandong 266071, China. E-mail address: (Y. Sun)
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Kipkeeva F, Muzaffarova T, Korotaeva A, Nikulin M, Grishina K, Mansorunov D, Apanovich P, Karpukhin A. MicroRNA in Gastric Cancer Development: Mechanisms and Biomarkers. Diagnostics (Basel) 2020; 10:E891. [PMID: 33142817 PMCID: PMC7692123 DOI: 10.3390/diagnostics10110891] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2020] [Revised: 10/20/2020] [Accepted: 10/29/2020] [Indexed: 12/11/2022] Open
Abstract
Gastric cancer (GC) is one of the most common and difficult diseases to treat. The study of signaling pathway regulation by microRNA provides information on the mechanisms of GC development and is the basis for biomarker creation. In this study, a circuit of microRNA interactions with signaling pathways was constructed. The microRNAs, associated with metastasis and chemoresistance, are described. In most cases, microRNAs in GC regulate the Wnt/β-catenin, PI3K/AKT/mTOR, RAS/RAF/ERK/MAPK, NF-kB, TGF-β, and JAK/STAT pathways. Part of the microRNA acts on several target genes that function in different pathways. This often leads to an intensification of the induced processes. MicroRNAs have also been described that have the opposite effect on different pathways, causing different functional consequences. By acting on several target genes, or genes associated with several pathways, microRNAs can function in a signaling network. MicroRNAs associated with metastasis most often interact with the Wnt/β-catenin pathway. MicroRNAs affecting chemoresistance, in most cases, affect the regulators of apoptosis and are associated with the PI3K/AKT/mTOR pathway. The characteristics of microRNAs proposed as candidates for GC biomarkers were analyzed. The currently developed diagnostic and prognostic panels of microRNAs are also considered.
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Affiliation(s)
- Fatimat Kipkeeva
- Research Centre for Medical Genetics, 1 Moskvorechye St., Moscow 115522, Russia; (F.K.); (T.M.); (A.K.); (K.G.); (D.M.); (P.A.)
| | - Tatyana Muzaffarova
- Research Centre for Medical Genetics, 1 Moskvorechye St., Moscow 115522, Russia; (F.K.); (T.M.); (A.K.); (K.G.); (D.M.); (P.A.)
| | - Alexandra Korotaeva
- Research Centre for Medical Genetics, 1 Moskvorechye St., Moscow 115522, Russia; (F.K.); (T.M.); (A.K.); (K.G.); (D.M.); (P.A.)
| | - Maxim Nikulin
- N.N. Blokhin National Medical Research Center of Oncology of the Ministry of Health of Russia, 24 Kashirskoe Shosse, Moscow 115478, Russia;
| | - Kristina Grishina
- Research Centre for Medical Genetics, 1 Moskvorechye St., Moscow 115522, Russia; (F.K.); (T.M.); (A.K.); (K.G.); (D.M.); (P.A.)
| | - Danzan Mansorunov
- Research Centre for Medical Genetics, 1 Moskvorechye St., Moscow 115522, Russia; (F.K.); (T.M.); (A.K.); (K.G.); (D.M.); (P.A.)
| | - Pavel Apanovich
- Research Centre for Medical Genetics, 1 Moskvorechye St., Moscow 115522, Russia; (F.K.); (T.M.); (A.K.); (K.G.); (D.M.); (P.A.)
| | - Alexander Karpukhin
- Research Centre for Medical Genetics, 1 Moskvorechye St., Moscow 115522, Russia; (F.K.); (T.M.); (A.K.); (K.G.); (D.M.); (P.A.)
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18
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Construction and Investigation of MicroRNA-mRNA Regulatory Network of Gastric Cancer with Helicobacter pylori Infection. Biochem Res Int 2020; 2020:6285987. [PMID: 32802507 PMCID: PMC7410007 DOI: 10.1155/2020/6285987] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2020] [Revised: 06/04/2020] [Accepted: 06/19/2020] [Indexed: 12/29/2022] Open
Abstract
Background Helicobacter pylori (H. pylori) is a common human pathogen, which is closely correlated with gastric cancer (GC). However, the mechanism of H. pylori-related GC has not been elucidated. This study aimed to explore the role of H. pylori infection in GC and find biomarkers for early diagnosis of H. pylori-related GC. Methods We identified differentially expressed microRNAs (DEMs) and genes (DEGs) from the Gene Expression Omnibus (GEO) dataset, constructed microRNA-(miRNA-)mRNA expression networks, analyzed the function and signal pathway of cross-genes, analyzed the relations between cross-genes and GC prognosis with the Cancer Genome Atlas (TCGA) data, and verified the expression of cross-genes in patients with H. pylori infection. Results 22 DEMs and 68 DEGs were identified in GSE197694 and GSE27411 dataset. 16 miRNAs and 509 genes were involved in the expression network, while the cross-genes of the network were mainly enriched in MAP kinase (MAPK) signaling pathway and TGF-beta signaling pathway. Patients with higher expression of hsa-miR-196b-3p, CALML4, or SMAD6 or lower expression of PITX2 or TGFB2 had better outcomes than those with lower expression of hsa-miR-196b-3p, CALML4, or SMAD6 or higher expression of PITX2 or TGFB2 (P < 0.05). Patients with H. pylori infection had a higher expression of hsa-miR-196b-3p and CALML4 than those without H. pylori infection (P < 0.05). Conclusion The study of miRNA-mRNA expression network would provide molecular support for early diagnosis and treatment of H. pylori-related GC.
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19
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De Re V, Caggiari L, De Zorzi M, Fanotto V, Miolo G, Puglisi F, Cannizzaro R, Canzonieri V, Steffan A, Farruggia P, Lopci E, d'Amore ESG, Burnelli R, Mussolin L, Mascarin M. Epstein-Barr virus BART microRNAs in EBV- associated Hodgkin lymphoma and gastric cancer. Infect Agent Cancer 2020; 15:42. [PMID: 32582365 PMCID: PMC7310352 DOI: 10.1186/s13027-020-00307-6] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2020] [Accepted: 06/11/2020] [Indexed: 12/19/2022] Open
Abstract
Background EBV produces miRNAs with important functions in cancer growth, tumor invasion and host immune surveillance. The discovery of EBV miR-BARTs is recent, and most of their functions are still unknown. Nonetheless, some new studies underline their key roles in EBV-associated malignancies. Main body In EBV-associated tumors, the expression profile of miR-BARTs varies according to the cell type, autophagic process and signals received from the tumor microenvironment. By the same way of interest is the interaction between tumor cells and the tumor environment by the release of selected EBV miR-BARTs in addition to the tumor proteins trough tumor exosomes. Conclusion In this review, we discuss new findings regarding EBV miR-BARTs in Hodgkin lymphoma and gastric cancer. The recent discovery that miRNAs are released by exosomes, including miR-BARTs, highlights the importance of tumor and microenvironment interplay with more specific effects on the host immune response.
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Affiliation(s)
- Valli De Re
- Immunopathology and Cancer Biomarkers, Department of Translational Research, Centro di Riferimento Oncologico di Aviano (CRO), IRCCS, Aviano, PN Italy
| | - Laura Caggiari
- Immunopathology and Cancer Biomarkers, Department of Translational Research, Centro di Riferimento Oncologico di Aviano (CRO), IRCCS, Aviano, PN Italy
| | - Mariangela De Zorzi
- Immunopathology and Cancer Biomarkers, Department of Translational Research, Centro di Riferimento Oncologico di Aviano (CRO), IRCCS, Aviano, PN Italy
| | - Valentina Fanotto
- Medical Oncology and Cancer Prevention, Department of Medical Oncology, IRCCS, Centro di Riferimento Oncologico di Aviano (CRO), Aviano, PN Italy
| | - Gianmaria Miolo
- Medical Oncology and Cancer Prevention, Department of Medical Oncology, IRCCS, Centro di Riferimento Oncologico di Aviano (CRO), Aviano, PN Italy
| | - Fabio Puglisi
- Medical Oncology and Cancer Prevention, Department of Medical Oncology, IRCCS, Centro di Riferimento Oncologico di Aviano (CRO), Aviano, PN Italy.,Department of Medicine, University of Udine, Udine, Italy
| | - Renato Cannizzaro
- Gastroenterology, Department of Medical Oncology, Centro di Riferimento Oncologico di Aviano (CRO), IRCCS, Aviano, PN Italy.,Pathology, Department of Translational Research, Centro di Riferimento Oncologico di Aviano (CRO), Aviano, PN Italy
| | - Vincenzo Canzonieri
- Department of Medical, Surgical and Health Sciences, University of Trieste Medical School, Trieste, Italy
| | - Agostino Steffan
- Immunopathology and Cancer Biomarkers, Department of Translational Research, Centro di Riferimento Oncologico di Aviano (CRO), IRCCS, Aviano, PN Italy
| | - Piero Farruggia
- Pediatric Hematology and Oncology Unit, Oncology, Department, A.R.N.A.S. Ospedali Civico Di Cristina e Benfratelli, Palermo, PN Italy
| | - Egesta Lopci
- Nuclear Medicine Department, Humanitas Clinical and Research Hospital, Via Manzoni 56, 20089 Rozzano, MI Italy
| | | | - Roberta Burnelli
- Pediatric Hematology-Oncology, Azienda Ospedaliera Universitaria, Ospedale Sant'Anna, Ferrara, FE Italy
| | - Lara Mussolin
- Pediatric Hemato-Oncology Clinic, Department of Women's and Children's Health, University of Padua, Institute of Paediatric Research Fondazione Città della Speranza, Padua, PD Italy
| | - Maurizio Mascarin
- Pediatric Radiotherapy Unit, Centro di Riferimento Oncologico di Aviano (CRO), IRCCS, Aviano, PN Italy
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20
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EBV-miR-BART10-3p and EBV-miR-BART22 promote metastasis of EBV-associated gastric carcinoma by activating the canonical Wnt signaling pathway. Cell Oncol (Dordr) 2020; 43:901-913. [PMID: 32533512 DOI: 10.1007/s13402-020-00538-0] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2019] [Revised: 05/20/2020] [Accepted: 05/22/2020] [Indexed: 02/06/2023] Open
Abstract
PURPOSE Epstein-Barr virus (EBV)-associated gastric carcinoma (EBVaGC) constitutes the largest subpopulation in EBV-associated tumors worldwide. To date, 44 mature EBV-encoded microRNAs (EBV miRNAs) have been identified, but their roles in EBVaGC development are still poorly understood. In this study, we aimed to investigate the roles and targets of ebv-miR-BART10-3p (BART10-3p) and ebv-miR-BART22 (BART22) in EBVaGC. METHODS EBV miRNA expression in EBVaGCs was evaluated by deep sequencing and qRT-PCR, and relationships between BART10-3p or BART22 expression and clinicolpathological characteristics and survival rates of patients with EBVaGC were analyzed. The roles of BART10-3p and BART22 and their underlying mechanisms were further investigated through exogenous overexpression or silencing in EBVaGC cells, and validated in clinical EBVaGC tissue samples. RESULTS BART10-3p and BART22 were found to be highly expressed in the EBVaGC cell lines SNU719 and YCCEL1. Higher expression of BART10-3p or BART22 in primary EBVaGC samples was significantly associated with lymph node metastasis and a worse 5-year overall survival. BART10-3p and BART22 promoted cell migration and invasion by targeting adenomatous polyposis coli (APC) and Dickkopf 1 (DKK1), thereby activating the Wnt signaling pathway and, consequently, upregulating downstream Twist and downregulating downstream E-cadherin. In 874 primary gastric carcinoma samples, APC and DKK1 were found to be lower expressed in EBVaGC than in EBV-negative samples, and their expression levels were inversely correlated with those of BART10-3p and BART22 in 71 EBVaGC samples. CONCLUSIONS From our data we conclude that BART10-3p and BART22 play vital roles in promoting EBVaGC metastasis by targeting APC and DKK1 and, subsequently, activating the Wnt signaling pathway, thereby providing novel prognostic biomarkers and potential therapeutic targets for EBVaGC.
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Miliotis CN, Slack FJ. Multi-layered control of PD-L1 expression in Epstein-Barr virus-associated gastric cancer. ACTA ACUST UNITED AC 2020; 6. [PMID: 34212113 PMCID: PMC8244904 DOI: 10.20517/2394-4722.2020.12] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Gastric cancer (GC) is the fifth most common cancer worldwide. In approximately 10% of GC cases, cancer cells show ubiquitous and monoclonal Epstein-Barr virus (EBV) infection. A significant feature of EBV-associated GC (EBVaGC) is high lymphocytic infiltration and high expression of immune checkpoint proteins, including programmed death-ligand 1 (PD-L1). This highlights EBVaGC as a strong candidate for immune checkpoint blockade therapy. Indeed, several recent studies have shown that EBV positivity in GC correlates with positive response to programmed cell death protein 1 (PD-1)/PD-L1 blockade therapy. Understanding the mechanisms that control PD-L1 expression in EBVaGC can indicate new predictive biomarkers for immunotherapy, as well as therapeutic targets for combination therapy. Various mechanisms have been implicated in PD-L1 expression regulation, including structural variations, post-transcriptional control, oncogenic activation of intrinsic signaling pathways, and increased sensitivity to extrinsic signals. This review provides the most recent updates on the multilayered control of PD-L1 expression in EBVaGC.
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Affiliation(s)
- Christos N Miliotis
- HMS Initiative for RNA Medicine, Department of Pathology, Cancer Center, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02115, USA
| | - Frank J Slack
- HMS Initiative for RNA Medicine, Department of Pathology, Cancer Center, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02115, USA
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22
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Li Y, Liu Y, Yao J, Li R, Fan X. Downregulation of miR-484 is associated with poor prognosis and tumor progression of gastric cancer. Diagn Pathol 2020; 15:25. [PMID: 32192507 PMCID: PMC7082931 DOI: 10.1186/s13000-020-00946-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2019] [Accepted: 03/10/2020] [Indexed: 12/13/2022] Open
Abstract
Background Gastric cancer is one of the most common cancers leading to high cancer mortality. MicroRNA-484 (miR-484) has been evaluated as a biomarker for various types of cancers. The subject of this study is to investigate the functional role of miR-484 in gastric cancer. Methods The expression of miR-484 in gastric cancer was analyzed by quantitative real-time polymerase chain reaction (qRT-PCR) assay. Kaplan-Meier survival and Cox regression analyses were employed to explore the prognostic significance of miR-484 in gastric cancer. The functional role of miR-484 in gastric cancer was determined by CCK-8 and Transwell assays. Results The results showed that miR-484 was significantly downregulated in gastric cancer tissues and cell lines. The downregulation of miR-484 was closely related to differentiation, lymph node metastasis, TNM stage, and poor prognosis. Cox regression analyses demonstrated that miR-484 was an independent prognosis indicator for gastric cancer patients. Additionally, the downregulation of miR-484 enhanced cell proliferation, migration, and invasion in gastric cancer cells. Conclusion These data demonstrated that miR-484 can serve as a potential prognostic biomarker and therapeutic target for gastric cancer and it may be involved in the progression of gastric cancer.
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Affiliation(s)
- Ying Li
- Department of Oncology, Jining Hospital of Traditional Chinese Medicine, Jining, Shandong, 272000, China
| | - Yusong Liu
- Department of Oncology, Jining Hospital of Traditional Chinese Medicine, Jining, Shandong, 272000, China
| | - Jie Yao
- Department of Oncology, Jining Hospital of Traditional Chinese Medicine, Jining, Shandong, 272000, China
| | - Rui Li
- Department of Oncology, Jining Hospital of Traditional Chinese Medicine, Jining, Shandong, 272000, China
| | - Xiaocheng Fan
- Department of Oncology, Jining Hospital of Traditional Chinese Medicine, Jining, Shandong, 272000, China.
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23
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Ghasemi F, Gameiro SF, Tessier TM, Maciver AH, Mymryk JS. High Levels of Class I Major Histocompatibility Complex mRNA Are Present in Epstein-Barr Virus-Associated Gastric Adenocarcinomas. Cells 2020; 9:E499. [PMID: 32098275 PMCID: PMC7072773 DOI: 10.3390/cells9020499] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2020] [Revised: 02/12/2020] [Accepted: 02/18/2020] [Indexed: 12/13/2022] Open
Abstract
Epstein-Barr virus (EBV) is responsible for approximately 9% of stomach adenocarcinomas. EBV-encoded microRNAs have been reported as reducing the function of the class I major histocompatibility complex (MHC-I) antigen presentation apparatus, which could allow infected cells to evade adaptive immune responses. Using data from nearly 400 human gastric carcinomas (GCs), we assessed the impact of EBV on MHC-I heavy and light chain mRNA levels, as well as multiple other components essential for antigen processing and presentation. Unexpectedly, mRNA levels of these genes were as high, or higher, in EBV-associated gastric carcinomas (EBVaGCs) compared to normal control tissues or other GC subtypes. This coordinated upregulation could have been a consequence of the higher intratumoral levels of interferon γ in EBVaGCs, which correlated with signatures of increased infiltration by T and natural killer (NK) cells. These results indicate that EBV-encoded products do not effectively reduce mRNA levels of the MHC-I antigen presentation apparatus in human GCs.
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Affiliation(s)
- Farhad Ghasemi
- Department of Surgery, Western University, London, ON N6A 3K7, Canada;
| | - Steven F. Gameiro
- Department of Microbiology and Immunology, Western University, London, ON N6A 3K7, Canada; (S.F.G.); (T.M.T.)
| | - Tanner M. Tessier
- Department of Microbiology and Immunology, Western University, London, ON N6A 3K7, Canada; (S.F.G.); (T.M.T.)
| | - Allison H. Maciver
- Department of Surgery and Oncology, Western University, London, ON N6A 3K7, Canada;
| | - Joe S. Mymryk
- Department of Microbiology & Immunology, Oncology and Otolaryngology, Head & Neck Surgery, The Western University, London, ON N6A 3K7, Canada
- London Regional Cancer Program, Lawson Health Research Institute, London, ON N6C 2R5, Canada
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24
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Zhu X, Zhang A, Dong J, Yao Y, Zhu M, Xu K, Al Hamda MH. MicroRNA-23a contributes to hippocampal neuronal injuries and spatial memory impairment in an experimental model of temporal lobe epilepsy. Brain Res Bull 2019; 152:175-183. [PMID: 31336125 DOI: 10.1016/j.brainresbull.2019.07.021] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2019] [Revised: 07/05/2019] [Accepted: 07/18/2019] [Indexed: 10/26/2022]
Abstract
Temporal lobe epilepsy (TLE) is the most common form of epilepsy characterized by spontaneous recurrent seizures. It has been widely accepted that individuals with TLE tend to have neuronal injuries and memory impairment. However, little is known about the underlying molecular mechanisms. MicroRNAs (miRNAs) are small noncoding RNAs that regulate the expression of target genes at the posttranscriptional level. An increasing body of evidence suggests that miRNAs play pivotal roles in the pathogenesis of epilepsy. Here, we sought to determine the role of miR-23a, one of the most common miRNAs involved in various cancer types, in hippocampal neuronal injuries and spatial memory impairment in an experimental model of TLE. We found that miR-23a is upregulated in the hippocampus after status epilepticus (SE) in kanic acid (KA)-induced TLE mice. Furthermore, the upregulation of miR-23a is accompanied by hippocampal oxidative damage, neuronal injuries and spatial memory impairment in TLE mice. Inhibition of miR-23a expression by miR-23a antagomirs reduced hippocampal oxidative stress, neuronal injuries and improved spatial memory, while an increase in miR-23a expression by miR-23a agomir exacerbated hippocampal oxidative stress, neuronal injuries and spatial memory impairment in TLE mice. Our findings suggest that miR-23a contributes to hippocampal oxidative damage and neuronal injuries, which may consequently contribute to spatial memory impairment in TLE mice. Thus, targeting miR-23a in the epileptic brain may provide a novel strategy for protecting against hippocampal neuronal injuries and improving spatial memory in TLE patients.
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Affiliation(s)
- Xinjian Zhu
- Department of Pharmacology, Medical School of Southeast University, Nanjing, China.
| | - Aifeng Zhang
- Department of Pathology, Medical School of Southeast University, Nanjing, China
| | - Jingde Dong
- Department of Geriatric Neurology, Nanjing Brain Hospital Affiliated with Nanjing Medical University, Nanjing, China
| | - Yuanyuan Yao
- Department of Pharmacology, Medical School of Southeast University, Nanjing, China
| | - Mengyi Zhu
- Department of Pharmacology, Medical School of Southeast University, Nanjing, China
| | - Kangni Xu
- Department of Pharmacology, Medical School of Southeast University, Nanjing, China
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25
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Chen HY, Lang YD, Lin HN, Liu YR, Liao CC, Nana AW, Yen Y, Chen RH. miR-103/107 prolong Wnt/β-catenin signaling and colorectal cancer stemness by targeting Axin2. Sci Rep 2019; 9:9687. [PMID: 31273221 PMCID: PMC6609830 DOI: 10.1038/s41598-019-41053-z] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2018] [Accepted: 01/14/2019] [Indexed: 12/19/2022] Open
Abstract
Cancer stemness drives tumor initiation, progression, metastasis, recurrence, and therapy resistance. However, mechanisms that potentiate the acquisition and maintenance of stemness fate of cancer cells remain incompletely understood. Here, we show that miR-103/107 stimulate multiple stem-like features in colorectal cancer, including expression of stem-like markers, appearance of side-population cells, and capabilities in self-renewal, tumor initiation, recurrence, and chemoresistance. Mechanistically, these stemness-promoting functions are mediated by miR-103/107-dependent repression of Axin2, a negative feedback regulator of Wnt/β-catenin signaling. Through inhibiting Axin2, miR-103/107 trigger a prolonged duration of Wnt/β-catenin signaling and a sustained induction of Wnt responsive genes. In colorectal cancer patients, miR-103/107 expression correlates inversely with Axin2 expression and a signature of miR-103/107 high and Axin2 low expression profile correlates with poor prognosis. Together, our study identifies a novel function of miR-103/107 in promoting colorectal cancer stemness by targeting Axin2 and elucidates the clinical relevance and prognostic value of this axis in colorectal cancer.
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Affiliation(s)
- Hsin-Yi Chen
- Ph.D Program for Cancer Molecular Biology and Drug Discovery, College of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan. .,Institute of Biological Chemistry, Academia Sinica, Taipei, Taiwan. .,Graduate Institute of Cancer Biology and Drug Discovery, College of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan. .,TMU Research Center of Cancer Translational Medicine, Taipei, Taiwan.
| | - Yaw-Dong Lang
- Institute of Biomedical Science, Academia Sinica, Taipei, Taiwan
| | - Han-Nan Lin
- Ph.D Program for Cancer Molecular Biology and Drug Discovery, College of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan
| | - Yun-Ru Liu
- Office of Human Research, Taipei Medical University, Taipei, Taiwan
| | - Chun-Chieh Liao
- Institute of Biological Chemistry, Academia Sinica, Taipei, Taiwan.,Institute of Molecular Medicine, College of Medicine, National Taiwan University, Taipei, Taiwan
| | - André Wendindondé Nana
- Ph.D Program for Cancer Molecular Biology and Drug Discovery, College of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan
| | - Yun Yen
- Ph.D Program for Cancer Molecular Biology and Drug Discovery, College of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan.,TMU Research Center of Cancer Translational Medicine, Taipei, Taiwan
| | - Ruey-Hwa Chen
- Institute of Biological Chemistry, Academia Sinica, Taipei, Taiwan. .,Institute of Molecular Medicine, College of Medicine, National Taiwan University, Taipei, Taiwan. .,Institute of Biochemical Sciences, College of Life Science, National Taiwan University, Taipei, Taiwan.
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26
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Bhat SA, Majid S, Rehman MU. Scenario and future prospects of microRNAs in gastric cancer: A review. IRANIAN JOURNAL OF BASIC MEDICAL SCIENCES 2019; 22:345-352. [PMID: 31168337 PMCID: PMC6535194 DOI: 10.22038/ijbms.2019.32399.7765] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/01/2018] [Accepted: 12/11/2018] [Indexed: 12/19/2022]
Abstract
Carcinoma of the stomach is one of the major prevalent and principal causes of cancer-related deaths worldwide. Current advancement in technology has improved the understanding of the pathogenesis and pathology of gastric cancers (GC). But, high mortality rates, unfavorable prognosis and lack of clinical predictive biomarkers provide an impetus to investigate novel early diagnostic/prognostic markers and therapeutic targets for GC, which are sufficiently sensitive to GC. Current biomedical investigations have explored several budding GC biomarker by utilizing serum proteins, natural oncogenic genes during improvement in molecular technologies as microarray, and RNA/DNA-Seq. Recently, small non-coding microRNAs (miRNAs) are becoming vital regulators in oncogenesis pathways and can act as handy clinical biomarkers. The newly introduced class of biomarkers is rising as new molecules for cancer diagnosis and prognosis. For better understanding of the gastric carcinogenesis, miRNAs may help to elucidate the mechanisms of tumor growth and can help to discover novel untimely potent markers for early detection of GC. Here in this review, we summarize the recent research studies supporting the utility of miRNAs as novel early diagnostic/prognostic tools and therapeutic targets. Thus, here we introduce potential future treatment strategies for gastrointestinal (GI) cancers, which indicate the practicality and clinical applications of miRNAs in GC.
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Affiliation(s)
- Showkat Ahmad Bhat
- Department of Biochemistry, Govt. Medical College, Srinagar Jammu & Kashmir, India
| | - Sabhiya Majid
- Department of Biochemistry, Govt. Medical College, Srinagar Jammu & Kashmir, India
| | - Muneeb U Rehman
- Department of Biochemistry, Govt. Medical College, Srinagar Jammu & Kashmir, India
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27
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Wu X, Shen J, Xiao Z, Li J, Zhao Y, Zhao Q, Cho CH, Li M. An overview of the multifaceted roles of miRNAs in gastric cancer: Spotlight on novel biomarkers and therapeutic targets. Biochem Pharmacol 2019; 163:425-439. [PMID: 30857828 DOI: 10.1016/j.bcp.2019.03.011] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2018] [Accepted: 03/07/2019] [Indexed: 02/07/2023]
Abstract
MicroRNAs (miRNAs) are a group of small non-coding RNAs that have displayed strong association with gastric cancer (GC). Through the repression of target mRNAs, miRNAs regulate many biological pathways that are involved in cell proliferation, apoptosis, migration, invasion, metastasis as well as drug resistance. The detection of miRNAs in tissues and in body fluids emerges as a promising method in the diagnosis and prognosis of GC, due to their unique expression pattern in correlation with GC. Notably, miRNAs are also identified as potential therapeutic targets for GC therapy. The present review is thus to highlight the multifaceted roles of miRNAs in GC and in GC therapies, which would give indications for future research.
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Affiliation(s)
- Xu Wu
- Laboratory of Molecular Pharmacology, Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou 646000, Sichuan, China; South Sichuan Institute of Translational Medicine, Luzhou 646000, Sichuan, China
| | - Jing Shen
- Laboratory of Molecular Pharmacology, Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou 646000, Sichuan, China; South Sichuan Institute of Translational Medicine, Luzhou 646000, Sichuan, China
| | - Zhangang Xiao
- Laboratory of Molecular Pharmacology, Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou 646000, Sichuan, China; South Sichuan Institute of Translational Medicine, Luzhou 646000, Sichuan, China
| | - Jing Li
- Department of Oncology and Hematology, Hospital (T.C.M.) Affiliated to Southwest Medical University, Luzhou 646000, Sichuan, China
| | - Yueshui Zhao
- Laboratory of Molecular Pharmacology, Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou 646000, Sichuan, China; South Sichuan Institute of Translational Medicine, Luzhou 646000, Sichuan, China
| | - Qijie Zhao
- Laboratory of Molecular Pharmacology, Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou 646000, Sichuan, China; South Sichuan Institute of Translational Medicine, Luzhou 646000, Sichuan, China
| | - Chi Hin Cho
- Laboratory of Molecular Pharmacology, Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou 646000, Sichuan, China; South Sichuan Institute of Translational Medicine, Luzhou 646000, Sichuan, China.
| | - Mingxing Li
- Laboratory of Molecular Pharmacology, Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou 646000, Sichuan, China; South Sichuan Institute of Translational Medicine, Luzhou 646000, Sichuan, China.
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28
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Pereira AL, Magalhães L, Moreira FC, Reis-das-Mercês L, Vidal AF, Ribeiro-Dos-Santos AM, Demachki S, Anaissi AKM, Burbano RMR, Albuquerque P, Dos Santos SEB, de Assumpção PP, Ribeiro-Dos-Santos ÂKC. Epigenetic Field Cancerization in Gastric Cancer: microRNAs as Promising Biomarkers. J Cancer 2019; 10:1560-1569. [PMID: 31031866 PMCID: PMC6485221 DOI: 10.7150/jca.27457] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2018] [Accepted: 11/21/2018] [Indexed: 12/17/2022] Open
Abstract
Background: The biological role of microRNAs (miRNAs) in field cancerization is unknown. To investigate the involvement of miRNAs in gastric field cancerization, we evaluated the expression profile of ten miRNAs and their diagnostic value. Methods: We used three groups of FFPE gastric samples: non-cancer (NC), cancer adjacent (ADJ) and gastric cancer (GC). The expression profiles of hsa-miR-10a, -miR-21, -miR-29c, -miR-135b, -miR-148a, -miR-150, -miR-204, -miR-215, -miR-483 and -miR-664a were investigated using qRT-PCR. The results obtained by qRT-PCR were validated in Small RNA-Seq data from the TCGA database. The search for target genes of the studied miRNAs was performed in the miRTarBase public database and miRTargetLink tool, using experimentally validated interactions. In addition, we also performed the functional analysis of these genes using enrichment in KEGG pathways. The potential as biomarker was evaluated using a receiver operating characteristic (ROC) curve and the derived area under the curve (AUC>0.85) analysis. Results: The miRNAs hsa-miR-10a, -miR-21, -miR-135b, hsa-miR-148a, -miR-150, -miR-215, -miR-204, -miR-483 and -miR-664a were up-regulated in ADJ and GC compared to NC (P<0.03); and hsa-miR-21 and -miR-135b were up-regulated in GC compared to ADJ (P<0.01). Hsa-miR-148a, -miR-150, -miR-215, -miR-483 and -miR-664a were not differentially expressed between GC and ADJ, suggesting that both share similar changes (P>0.1). The TS-miR hsa-miR-29c was up-regulated in ADJ compared to NC and GC (P<0.01); we did not observe a significant difference in the expression of this miRNA between NC and GC. This feature may be an antitumor mechanism used by cancer-adjacent tissue because this miRNA regulates the BCL-2, CDC42 and DMNT3A oncogenes. The expression level of hsa-miR-204 was associated with Helicobacter pylori infection status (P<0.05). Functional analysis using the genes regulated by the studied miRNAs showed that they are involved in biological pathways and cellular processes that are critical for the establishment of H. pylori infection and for the onset, development and progression of GC. hsa-miR-10a, -miR-21, -miR-135b, -miR-148a, -miR-150, -miR-215, -miR-483 and -miR-664a were able to discriminate NC from other tissues with great accuracy (AUC>0.85). Conclusion: The studied miRNAs are closely related to field cancerization, regulate genes important for gastric carcinogenesis and can be potentially useful as biomarkers in GC.
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Affiliation(s)
- Adenilson Leão Pereira
- Laboratory of Human and Medical Genetics, Institute of Biological Sciences, Federal University of Pará, Augusto Corrêa Avenue, 66075-110, Belém, Pará, Brazil
| | - Leandro Magalhães
- Laboratory of Human and Medical Genetics, Institute of Biological Sciences, Federal University of Pará, Augusto Corrêa Avenue, 66075-110, Belém, Pará, Brazil
| | - Fabiano Cordeiro Moreira
- Research Center on Oncology, Institute of Health Sciences, Federal University of Pará, Mundurucus Street, 66073-000, Belém, Pará, Brazil
| | - Laís Reis-das-Mercês
- Laboratory of Human and Medical Genetics, Institute of Biological Sciences, Federal University of Pará, Augusto Corrêa Avenue, 66075-110, Belém, Pará, Brazil
| | - Amanda Ferreira Vidal
- Laboratory of Human and Medical Genetics, Institute of Biological Sciences, Federal University of Pará, Augusto Corrêa Avenue, 66075-110, Belém, Pará, Brazil
| | - André Maurício Ribeiro-Dos-Santos
- Laboratory of Human and Medical Genetics, Institute of Biological Sciences, Federal University of Pará, Augusto Corrêa Avenue, 66075-110, Belém, Pará, Brazil
| | - Samia Demachki
- Research Center on Oncology, Institute of Health Sciences, Federal University of Pará, Mundurucus Street, 66073-000, Belém, Pará, Brazil
| | - Ana Karyssa Mendes Anaissi
- Research Center on Oncology, Institute of Health Sciences, Federal University of Pará, Mundurucus Street, 66073-000, Belém, Pará, Brazil
| | - Rommel Mario Rodríguez Burbano
- Research Center on Oncology, Institute of Health Sciences, Federal University of Pará, Mundurucus Street, 66073-000, Belém, Pará, Brazil
| | - Paulo Albuquerque
- São Camilo and São Luís Hospital, Dr. Marcello Cândia Street, 68901-901, Macapá, Amapá, Brazil
| | - Sidney Emanuel Batista Dos Santos
- Laboratory of Human and Medical Genetics, Institute of Biological Sciences, Federal University of Pará, Augusto Corrêa Avenue, 66075-110, Belém, Pará, Brazil.,Research Center on Oncology, Institute of Health Sciences, Federal University of Pará, Mundurucus Street, 66073-000, Belém, Pará, Brazil
| | - Paulo Pimentel de Assumpção
- Research Center on Oncology, Institute of Health Sciences, Federal University of Pará, Mundurucus Street, 66073-000, Belém, Pará, Brazil
| | - Ândrea Kely Campos Ribeiro-Dos-Santos
- Laboratory of Human and Medical Genetics, Institute of Biological Sciences, Federal University of Pará, Augusto Corrêa Avenue, 66075-110, Belém, Pará, Brazil.,Research Center on Oncology, Institute of Health Sciences, Federal University of Pará, Mundurucus Street, 66073-000, Belém, Pará, Brazil
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29
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Cao S, Zheng J, Liu X, Liu Y, Ruan X, Ma J, Liu L, Wang D, Yang C, Cai H, Li Z, Feng Z, Xue Y. FXR1 promotes the malignant biological behavior of glioma cells via stabilizing MIR17HG. JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2019; 38:37. [PMID: 30691465 PMCID: PMC6348679 DOI: 10.1186/s13046-018-0991-0] [Citation(s) in RCA: 53] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/11/2018] [Accepted: 12/04/2018] [Indexed: 02/04/2023]
Abstract
Background Accumulating evidence has highlighted the potential role of RNA binding proteins (RBPs) in the biological behaviors of glioblastoma cells. Herein, the expression and function of RNA binding proteins FXR1 were investigated in human glioma cells. Methods Quantitative real-time PCR were conducted to evaluate the expression of MIR17HG and miR-346, miRNA-425-5p in glioma tissues and cells. Western blot were used to explore the expression of FXR1, TAL1 and DEC1 in glioma tissues and cells. Stable knockdown of FXR1 and MIR17HG in glioma cells were established to explore the function of FXR1, MIR17HG in glioma cells. Further, RIP and RNA pull-down assays were used to investigate the correlation between FXR1 and MIR17HG. Cell Counting Kit-8, transwell assays, and flow cytometry were used to investigate the function of FXR1 and MIR17HG in malignant biological behaviors of glioma cells. ChIP assays were employed to ascertain the correlations between TAL1 and MIR17HG. Results FXR1and MIR17HG were upregulated in glioma tissues and cell lines. Downregulation of FXR1 or MIR17HG resulted in inhibition of glioma cells progression. We also found that FXR1 regulates the biological behavior of glioma cells via stabilizing MIR17HG. In addition, downregulated MIR17HG increased miR-346/miR-425-5p expression and MIR17HG acted as ceRNA to sponge miR-346/miR-425-5p. TAL1 was a direct target of miR-346/miR-425-5p, and played oncogenic role in glioma cells. More importantly, TAL1 activated MIR17HG promoter and upregulated its expression, forming a feedback loop. Remarkably, FXR1 knockdown combined with inhibition of MIR17HG resulted in the smallest tumor volumes and the longest survivals of nude mice in vivo. Conclusions FXR1/MIR17HG/miR-346(miR-425-5p)/TAL1/DEC1 axis plays a novel role in regulating the malignant behavior of glioma cells, which may be a new potential therapeutic strategy for glioma therapy. Electronic supplementary material The online version of this article (10.1186/s13046-018-0991-0) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Shuo Cao
- Department of Neurobiology, School of Life Sciences, China Medical University, Shenyang, 110122, People's Republic of China.,Key Laboratory of Cell Biology, Ministry of Public Health of China, China Medical University, Shenyang, 110122, China.,Key Laboratory of Medical Cell Biology, Ministry of Education of China, China Medical University, Shenyang, 110122, China
| | - Jian Zheng
- Department of Neurosurgery, Shengjing Hospital of China Medical University, Shenyang, 110004, China.,Liaoning Clinical Medical Research Center in Nervous System Disease, Shenyang, 110004, China.,Key Laboratory of Neuro-oncology in Liaoning Province, Shenyang, 110004, China
| | - Xiaobai Liu
- Department of Neurosurgery, Shengjing Hospital of China Medical University, Shenyang, 110004, China.,Liaoning Clinical Medical Research Center in Nervous System Disease, Shenyang, 110004, China.,Key Laboratory of Neuro-oncology in Liaoning Province, Shenyang, 110004, China
| | - Yunhui Liu
- Department of Neurosurgery, Shengjing Hospital of China Medical University, Shenyang, 110004, China.,Liaoning Clinical Medical Research Center in Nervous System Disease, Shenyang, 110004, China.,Key Laboratory of Neuro-oncology in Liaoning Province, Shenyang, 110004, China
| | - Xuelei Ruan
- Department of Neurobiology, School of Life Sciences, China Medical University, Shenyang, 110122, People's Republic of China.,Key Laboratory of Cell Biology, Ministry of Public Health of China, China Medical University, Shenyang, 110122, China.,Key Laboratory of Medical Cell Biology, Ministry of Education of China, China Medical University, Shenyang, 110122, China
| | - Jun Ma
- Department of Neurobiology, School of Life Sciences, China Medical University, Shenyang, 110122, People's Republic of China.,Key Laboratory of Cell Biology, Ministry of Public Health of China, China Medical University, Shenyang, 110122, China.,Key Laboratory of Medical Cell Biology, Ministry of Education of China, China Medical University, Shenyang, 110122, China
| | - Libo Liu
- Department of Neurobiology, School of Life Sciences, China Medical University, Shenyang, 110122, People's Republic of China.,Key Laboratory of Cell Biology, Ministry of Public Health of China, China Medical University, Shenyang, 110122, China.,Key Laboratory of Medical Cell Biology, Ministry of Education of China, China Medical University, Shenyang, 110122, China
| | - Di Wang
- Department of Neurosurgery, Shengjing Hospital of China Medical University, Shenyang, 110004, China.,Liaoning Clinical Medical Research Center in Nervous System Disease, Shenyang, 110004, China.,Key Laboratory of Neuro-oncology in Liaoning Province, Shenyang, 110004, China
| | - Chunqing Yang
- Department of Neurosurgery, Shengjing Hospital of China Medical University, Shenyang, 110004, China.,Liaoning Clinical Medical Research Center in Nervous System Disease, Shenyang, 110004, China.,Key Laboratory of Neuro-oncology in Liaoning Province, Shenyang, 110004, China
| | - Heng Cai
- Department of Neurosurgery, Shengjing Hospital of China Medical University, Shenyang, 110004, China.,Liaoning Clinical Medical Research Center in Nervous System Disease, Shenyang, 110004, China.,Key Laboratory of Neuro-oncology in Liaoning Province, Shenyang, 110004, China
| | - Zhen Li
- Department of Neurosurgery, Shengjing Hospital of China Medical University, Shenyang, 110004, China.,Liaoning Clinical Medical Research Center in Nervous System Disease, Shenyang, 110004, China.,Key Laboratory of Neuro-oncology in Liaoning Province, Shenyang, 110004, China
| | - Ziyi Feng
- Department of Neurobiology, School of Life Sciences, China Medical University, Shenyang, 110122, People's Republic of China.,The 102th Class, experimental class of clinical medicine discipline, China Medical University, Shenyang, 110122, Liaoning Province, China
| | - Yixue Xue
- Department of Neurobiology, School of Life Sciences, China Medical University, Shenyang, 110122, People's Republic of China. .,Key Laboratory of Cell Biology, Ministry of Public Health of China, China Medical University, Shenyang, 110122, China. .,Key Laboratory of Medical Cell Biology, Ministry of Education of China, China Medical University, Shenyang, 110122, China.
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Wu Q, Han T, Sheng X, Zhang N, Wang P. Downregulation of EB virus miR-BART4 inhibits proliferation and aggressiveness while promoting radiosensitivity of nasopharyngeal carcinoma. Biomed Pharmacother 2018; 108:741-751. [DOI: 10.1016/j.biopha.2018.08.146] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2018] [Revised: 08/22/2018] [Accepted: 08/28/2018] [Indexed: 01/10/2023] Open
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Varga MG, Cai H, Waterboer T, Murphy G, Shimazu T, Taylor PR, Qiao YL, Park SK, Yoo KY, Jee SH, Cho ER, Kim J, Abnet CC, Tsugane S, Cai Q, Zheng W, Pawlita M, Shu XO, Epplein M. Epstein-Barr Virus Antibody Titers Are Not Associated with Gastric Cancer Risk in East Asia. Dig Dis Sci 2018; 63:2765-2772. [PMID: 29948559 PMCID: PMC6139270 DOI: 10.1007/s10620-018-5154-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/24/2017] [Accepted: 05/30/2018] [Indexed: 12/30/2022]
Abstract
BACKGROUND Epstein-Barr virus (EBV)-positive gastric cancers represent a distinct subtype of gastric cancers and account for nearly 10% of the gastric cancer burden, yet risk detection strategies for this cancer subtype are lacking. METHODS We conducted a nested case-control study where we assayed 4 EBV antigens [viral capsid antigen (VCA), early antigen (EA), Epstein-Barr nuclear antigen (EBNA), and BZLF1-encoded replication activator protein (ZEBRA)] in either sera or plasma from 1447 gastric cancer cases and 1797 controls obtained from seven prospective cohorts representing individuals from the high gastric cancer-risk countries of China, Japan, and Korea. RESULTS The prevalence of EBV sero-positivity was universal with the exception of one sero-negative individual, and the highest titers of the EBV antigens VCA (OR 0.95, 95% CI 0.78-1.17), EBNA (OR 0.88, 95% CI 0.72-1.08), EA (OR 0.97, 95% CI 0.79-1.19), and ZEBRA (OR 0.87, 95% CI 0.71-1.07) were not associated with risk of incident gastric cancer. When we stratified these data by H. pylori status, there was no change in the association. CONCLUSIONS Multiplex serology of the aforementioned EBV antigens in serum may not be a suitable biomarker for predicting gastric cancer risk in East Asian populations.
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Affiliation(s)
- Matthew G. Varga
- Department of Epidemiology, Gillings School of Global Public Health
and Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel
Hill, 3207B Michael Hooker Research Center, Chapel Hill, NC 27599, USA,Division of Epidemiology, Department of Medicine, Vanderbilt
Epidemiology Center and Ingram Cancer Center, Vanderbilt University Medical Center,
Nashville, TN 37203, USA
| | - Hui Cai
- Division of Epidemiology, Department of Medicine, Vanderbilt
Epidemiology Center and Ingram Cancer Center, Vanderbilt University Medical Center,
Nashville, TN 37203, USA
| | - Tim Waterboer
- Division of Molecular Diagnostics of Oncogenic Infections, Research
Program in Infection, Inflammation, and Cancer, German Cancer Research Center
(DFKZ), 69120 Heidelberg, Germany
| | - Gwen Murphy
- Division of Cancer Epidemiology and Genetics, National Cancer
Institute, Bethesda, MD 20892, USA
| | - Taichi Shimazu
- Epidemiology and Prevention Group, National Cancer Center, Tokyo
104-0045, Japan
| | - Phil R. Taylor
- Division of Cancer Epidemiology and Genetics, National Cancer
Institute, Bethesda, MD 20892, USA
| | - You-Lin Qiao
- Department of Cancer Epidemiology, Chinese Academy of Medical
Sciences and Peking Union Medial College, Beijing 100021, China
| | - Sue K. Park
- Department of Biomedical Sciences, Cancer Research Institute, Seoul
National University College of Medicine, Seoul 110-799, Korea
| | - Keun-Young Yoo
- Department of Preventive Medicine, Seoul National University College
of Medicine, Seoul 110-799, Korea
| | - Sun Ha Jee
- Department of Epidemiology and Health Promotion, Institute for
Health Promotion, Yonsei University, Seoul 120-752, Korea
| | - Eo Rin Cho
- Department of Epidemiology and Health Promotion, Institute for
Health Promotion, Yonsei University, Seoul 120-752, Korea
| | - Jeongseon Kim
- Division of Cancer Epidemiology and Prevention, Research Institute,
National Cancer Center, Goyang 410-769, Korea
| | - Christian C. Abnet
- Division of Cancer Epidemiology and Genetics, National Cancer
Institute, Bethesda, MD 20892, USA
| | - Shoichiro Tsugane
- Epidemiology and Prevention Group, National Cancer Center, Tokyo
104-0045, Japan
| | - Qiuyin Cai
- Division of Epidemiology, Department of Medicine, Vanderbilt
Epidemiology Center and Ingram Cancer Center, Vanderbilt University Medical Center,
Nashville, TN 37203, USA
| | - Wei Zheng
- Division of Epidemiology, Department of Medicine, Vanderbilt
Epidemiology Center and Ingram Cancer Center, Vanderbilt University Medical Center,
Nashville, TN 37203, USA
| | - Michael Pawlita
- Division of Molecular Diagnostics of Oncogenic Infections, Research
Program in Infection, Inflammation, and Cancer, German Cancer Research Center
(DFKZ), 69120 Heidelberg, Germany
| | - Xiao-Ou Shu
- Division of Epidemiology, Department of Medicine, Vanderbilt
Epidemiology Center and Ingram Cancer Center, Vanderbilt University Medical Center,
Nashville, TN 37203, USA
| | - Meira Epplein
- Division of Epidemiology, Department of Medicine, Vanderbilt
Epidemiology Center and Ingram Cancer Center, Vanderbilt University Medical Center,
Nashville, TN 37203, USA,Department of Population Health Sciences, Duke University and
Cancer Control and Population Sciences Program, Duke Cancer Institute, Durham, NC
27705, USA
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Link A, Kupcinskas J. MicroRNAs as non-invasive diagnostic biomarkers for gastric cancer: Current insights and future perspectives. World J Gastroenterol 2018; 24:3313-3329. [PMID: 30122873 PMCID: PMC6092583 DOI: 10.3748/wjg.v24.i30.3313] [Citation(s) in RCA: 80] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/04/2018] [Revised: 06/10/2018] [Accepted: 06/28/2018] [Indexed: 02/06/2023] Open
Abstract
Non-invasive diagnostic biomarkers may contribute to an early identification of gastric cancer (GC) and improve the clinical management. Unfortunately, no sensitive and specific screening biomarkers are available yet and the currently available approaches are limited by the nature of the disease. GC is a heterogenic disease with various distinct genetic and epigenetic events that occur during the multifactorial cascade of carcinogenesis. MicroRNAs (miRNAs) are commonly deregulated in gastric mucosa during the Helicobacter pylori infection and in stepwise manner from chronic gastritis, through preneoplastic conditions such as atrophic gastritis and intestinal metaplasia, to early dysplasia and invasive cancer. Identification of miRNAs in blood in 2008 led to a great interest on miRNA-based diagnostic, prognostic biomarkers in GC. In this review, we provide the most recent systematic review on the existing studies related to miRNAs as diagnostic biomarkers for GC. Here, we systematically evaluate 75 studies related to differential expression of circulating miRNAs in GC patients and provide novel view on various heterogenic aspects of the existing data and summarize the methodological differences. Finally, we highlight several important aspects crucial to improve the future translational and clinical research in the field.
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Affiliation(s)
- Alexander Link
- Department of Gastroenterology, Hepatology and Infectious Diseases, Otto-von-Guericke University, Magdeburg 39120, Germany
| | - Juozas Kupcinskas
- Institute for Digestive Research and Department of Gastroenterology, Lithuanian University of Health Sciences, Kaunas LT-44307, Lithuania
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Duan F, Yang Y, Liu W, Zhao J, Song X, Li L, Li F. Quantifying the prognostic significance of microRNA-17/17-5P in cancers: a meta-analysis based on published studies. Cancer Manag Res 2018; 10:2055-2069. [PMID: 30140158 PMCID: PMC6054760 DOI: 10.2147/cmar.s163415] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Objective The aim of this study was to investigate the prognostic value of mircoRNA-17 and mircoRNA-17-5P (miR-17/17-5P) in patients with cancer. Materials and methods We conducted a comprehensive search on published literature following the guidelines of the meta-analysis of observational studies in epidemiology group for design, implementation, and reporting. The methodological qualities for included studies were assessed using the quality in prognosis studies. The pooled hazard ratios (HRs) with 95% CIs for overall survival (OS) and progression-free survival/recurrence-free survival/disease-free survival (PFS/RFS/DFS) were calculated to appraise the associations between miR-17/17-5P expression and cancer prognosis. Results A total of 21 studies involving 2099 subjects were analyzed in evidence synthesis. The results showed that high expression of miR-17 was associated with poor OS (HR=2.14; 95% CI: 1.69-2.71, P<0.001) in patients with cancer, especially in Caucasian (HR=2.23; 95% CI: 1.58-3.14, P<0.001) and digestive tract cancer (HR=1.29, 95% CI: 1.03-1.63, P=0.03), and miR-17 expression was significantly correlated with PFS/RFS in cancer patients (HR=1.69, 95% CI: 1.29-2.22, P<0.001). miR-17-5P overexpression was significantly linked with poor OS in cancer patients (HR=1.66; 95% CI: 1.31-2.09, P=0.00), especially in Asian (HR=1.81; 95% CI: 1.37-2.40, P<0.001), digestive tract cancer (HR=1.80; 95% CI: 1.29-2.50, P<0.001), and serum sample (HR=1.76; 95% CI: 1.29-2.41, P<0.001). miR-17-5P expression was significantly associated with DFS in cancer patients (HR=1.58, 95% CI: 1.07-2.35, P=0.02). Conclusion High expression of miR-17 and miR-17-5P are significantly associated with poor survival in patients with cancer. This indicated that miR-17/17-5P may be a novel prognostic indicator in cancer.
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Affiliation(s)
- Fujiao Duan
- Medical Research Office, Affiliated Cancer Hospital of Zhengzhou University, Zhengzhou 450008, Henan, China,
| | - Yang Yang
- Department of Nosocomial Infection Management, First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China
| | - Weigang Liu
- Medical Record Statistics Office, Affiliated Hospital of Hebei University of Engineering, Handan, Hebei 056002, China
| | - Jie Zhao
- Center of Telemedicine, First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450008, China
| | - Xiaoqin Song
- Center of Telemedicine, First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450008, China
| | - Lifeng Li
- Center of Telemedicine, First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450008, China
| | - Fuqin Li
- Department of Nosocomial Infection Management, First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China
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Sun Y, Duan F, Liu W, Peng Z, Dai L, Feng Y, Yang Z, Shang J, Wang K. Comprehensive Assessment of the Relationship Between MicroRNA-124 and the Prognostic Significance of Cancer. Front Oncol 2018; 8:252. [PMID: 30062087 PMCID: PMC6055006 DOI: 10.3389/fonc.2018.00252] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2018] [Accepted: 06/21/2018] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Numerous studies have demonstrated the presence of microRNA-124 abnormalities involving gene expression, methylation, and single nucleotide polymorphism (SNP) in multiple and diverse cancers, but the prognostic value of these abnormalities in cancer remains inconclusive. OBJECTIVE The aim of this study is to determine the prognostic value of miR-124 in cancer. METHODS We scrutinized the electronic databases and estimate the association between miR-124 expression, methylation and single nucleotide polymorphisms (SNPs), and prognosis in cancers. The pooled hazard ratios with 95% confidence intervals (CIs) for overall survival (OS), and disease-free survival/recurrence-free survival (RFS)/progression-free survival (PFS) were calculated to estimate the effects of miR-124 expression, methylation, and SNPs on cancer prognosis. The Quality in Prognosis Studies and Newcastle-Ottawa Scale were utilized to assess the quality of included studies. RESULTS A total of 20 studies involving 3,574 participants were analyzed in evidence synthesis. Our findings showed that the low expression of miR-124 was significantly associated with poor OS (HR = 2.37, 95% CI: 1.91-2.94, P = 0.00; HR = 3.10, 95% CI: 2.04-4.70, P = 0.00) and PFS/RFS (HR = 2.21, 95% CI: 1.50-3.26, P = 0.00; HR = 2.12, 95% CI: 1.20-3.74, P = 0.00). The hyper-methylation of miR-124 was associated with poor OS (HR = 2.09, 95% CI: 1.48-2.95, P = 0.00) and PFS (HR = 3.70, 95% CI: 1.72-7.97, P = 0.00) (Table 3). The patients carrying with Allele C of miR-124 rs5315649 had a worse OS (HR = 1.50, 95% CI: 1.09-2.07, P = 0.00) and PFS (HR = 1.67, 95% CI: 1.20-2.33, P = 0.00) than the carriers with Allele G. CONCLUSION The low expression and hyper-methylation of miR-124 was strongly associated with poor prognosis, and genetic variations of miR-124 rs531564 affected prognosis in cancer patients.
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Affiliation(s)
- Yadong Sun
- Department of Breast and Medical Research Office, Affiliated Cancer Hospital of Zhengzhou University, Zhengzhou, China
| | - Fujiao Duan
- Department of Breast and Medical Research Office, Affiliated Cancer Hospital of Zhengzhou University, Zhengzhou, China
- College of Public Health, Zhengzhou University, Zhengzhou, China
| | - Weigang Liu
- Medical Record Statistics Office, Affiliated Hospital of Hebei University of Engineering, Handan, China
| | - Zhen Peng
- Department of Infectious Disease, People’s Hospital of Zhengzhou University, Henan Provincial People’s Hospital, Zhengzhou, China
| | - Liping Dai
- College of Public Health, Zhengzhou University, Zhengzhou, China
| | - Yajing Feng
- Department of Nosocomial Infection Management, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Zhenxing Yang
- Department of Breast and Medical Research Office, Affiliated Cancer Hospital of Zhengzhou University, Zhengzhou, China
| | - Jia Shang
- Department of Infectious Disease, People’s Hospital of Zhengzhou University, Henan Provincial People’s Hospital, Zhengzhou, China
| | - Kaijuan Wang
- College of Public Health, Zhengzhou University, Zhengzhou, China
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Navari M, Etebari M, Ibrahimi M, Leoncini L, Piccaluga PP. Pathobiologic Roles of Epstein-Barr Virus-Encoded MicroRNAs in Human Lymphomas. Int J Mol Sci 2018; 19:E1168. [PMID: 29649101 PMCID: PMC5979337 DOI: 10.3390/ijms19041168] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2018] [Revised: 04/01/2018] [Accepted: 04/03/2018] [Indexed: 02/07/2023] Open
Abstract
Epstein-Barr virus (EBV) is a human γ-herpesvirus implicated in several human malignancies, including a wide range of lymphomas. Several molecules encoded by EBV in its latent state are believed to be related to EBV-induced lymphomagenesis, among which microRNAs-small RNAs with a posttranscriptional regulating role-are of great importance. The genome of EBV encodes 44 mature microRNAs belonging to two different classes, including BamHI-A rightward transcript (BART) and Bam HI fragment H rightward open reading frame 1 (BHRF1), with different expression levels in different EBV latency types. These microRNAs might contribute to the pathogenetic effects exerted by EBV through targeting self mRNAs and host mRNAs and interfering with several important cellular mechanisms such as immunosurveillance, cell proliferation, and apoptosis. In addition, EBV microRNAs can regulate the surrounding microenvironment of the infected cells through exosomal transportation. Moreover, these small molecules could be potentially used as molecular markers. In this review, we try to present an updated and extensive view of the role of EBV-encoded miRNAs in human lymphomas.
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Affiliation(s)
- Mohsen Navari
- Research Center of Advanced Technologies in Medicine, Torbat Heydariyeh University of Medical Sciences, Torbat Heydariyeh 9516915169, Iran.
- Department of Experimental, Diagnostic, and Experimental Medicine, Bologna University School of Medicine, 40126 Bologna, Italy.
| | - Maryam Etebari
- Research Center of Advanced Technologies in Medicine, Torbat Heydariyeh University of Medical Sciences, Torbat Heydariyeh 9516915169, Iran.
- Department of Experimental, Diagnostic, and Experimental Medicine, Bologna University School of Medicine, 40126 Bologna, Italy.
| | - Mostafa Ibrahimi
- Department of Clinical Biochemistry, Faculty of Medical Sciences, Tarbiat Modares University, P.O. Box 14115-111, Tehran, Iran.
| | - Lorenzo Leoncini
- Section of Pathology, Department of Medical Biotechnology, University of Siena, 53100 Siena, Italy.
| | - Pier Paolo Piccaluga
- Department of Experimental, Diagnostic, and Experimental Medicine, Bologna University School of Medicine, 40126 Bologna, Italy.
- Euro-Mediterranean Institute of Science and Technology (IEMEST), 90139 Palermo, Italy.
- Department of Pathology, Jomo Kenyatta University of Agriculture and Technology, P.O. Box 62000-00200, Nairobi, Kenya.
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Polakovicova I, Jerez S, Wichmann IA, Sandoval-Bórquez A, Carrasco-Véliz N, Corvalán AH. Role of microRNAs and Exosomes in Helicobacter pylori and Epstein-Barr Virus Associated Gastric Cancers. Front Microbiol 2018; 9:636. [PMID: 29675003 PMCID: PMC5895734 DOI: 10.3389/fmicb.2018.00636] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2017] [Accepted: 03/19/2018] [Indexed: 12/17/2022] Open
Abstract
Emerging evidence suggests that chronic inflammation caused by pathogen infection is connected to the development of various types of cancer. It is estimated that up to 20% of all cancer deaths is linked to infections and inflammation. In gastric cancer, such triggers can be infection of the gastric epithelium by either Helicobacter pylori (H. pylori), a bacterium present in half of the world population; or by Epstein-Barr virus (EBV), a double-stranded DNA virus which has recently been associated with gastric cancer. Both agents can establish lifelong inflammation by evolving to escape immune surveillance and, under certain conditions, contribute to the development of gastric cancer. Non-coding RNAs, mainly microRNAs (miRNAs), influence the host innate and adaptive immune responses, though long non-coding RNAs and viral miRNAs also alter these processes. Reports suggest that chronic infection results in altered expression of host miRNAs. In turn, dysregulated miRNAs modulate the host inflammatory immune response, favoring bacterial survival and persistence within the gastric mucosa. Given the established roles of miRNAs in tumorigenesis and innate immunity, they may serve as an important link between H. pylori- and EBV-associated inflammation and carcinogenesis. Example of this is up-regulation of miR-155 in H. pylori and EBV infection. The tumor environment contains a variety of cells that need to communicate with each other. Extracellular vesicles, especially exosomes, allow these cells to deliver certain type of information to other cells promoting cancer growth and metastasis. Exosomes have been shown to deliver not only various types of genetic information, mainly miRNAs, but also cytotoxin-associated gene A (CagA), a major H. pylori virulence factor. In addition, a growing body of evidence demonstrates that exosomes contain genetic material of viruses and viral miRNAs and proteins such as EBV latent membrane protein 1 (LMP1) which are delivered into recipient cells. In this review, we focus on the dysregulated H. pylori- and EBV-associated miRNAs while trying to unveil possible causal mechanisms. Moreover, we discuss the role of exosomes as vehicles for miRNA delivery in H. pylori- and EBV-related carcinogenesis.
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Affiliation(s)
- Iva Polakovicova
- Advanced Center for Chronic Diseases, Pontificia Universidad Católica de Chile, Santiago, Chile.,UC Center for Investigational Oncology, Pontificia Universidad Católica de Chile, Santiago, Chile.,Department of Hematology-Oncology, Faculty of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Sofia Jerez
- Department of Hematology-Oncology, Faculty of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Ignacio A Wichmann
- Advanced Center for Chronic Diseases, Pontificia Universidad Católica de Chile, Santiago, Chile.,UC Center for Investigational Oncology, Pontificia Universidad Católica de Chile, Santiago, Chile.,Department of Hematology-Oncology, Faculty of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile
| | | | - Nicolás Carrasco-Véliz
- Advanced Center for Chronic Diseases, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Alejandro H Corvalán
- Advanced Center for Chronic Diseases, Pontificia Universidad Católica de Chile, Santiago, Chile.,UC Center for Investigational Oncology, Pontificia Universidad Católica de Chile, Santiago, Chile.,Department of Hematology-Oncology, Faculty of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile
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A novel microRNA signature predicts survival in stomach adenocarcinoma. Oncotarget 2018; 8:28144-28153. [PMID: 28423653 PMCID: PMC5438638 DOI: 10.18632/oncotarget.15961] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2016] [Accepted: 02/22/2017] [Indexed: 01/07/2023] Open
Abstract
Recent microRNA (miRNA) expression profiling studies suggest the clinical use of miRNAs as potential prognostic biomarkers in various malignancies. In this study, aiming to identify microRNAs with prognostic value for overall survival (OS) in stomach adenocarcinoma (STAD) patients, we analyzed the miRNA expression profiles and the associated clinical characteristics in 380 STAD samples from The Cancer Genome Atlas (TCGA) dataset. An eight-miRNA signature for predicting OS in STAD patients was identified and self-validated by survival analysis and semi-supervised principal components method. We developed a linear prognostic model composed of these miRNAs to divide patients into high- and low-risk groups according to the calculated prognostic scores. Kaplan-Meier analysis demonstrated that patients in the high-risk group had worse OS compared with patients in the low-risk group. Notably, this miRNA prognostic model showed prognostic significance to the STAD patients in early stages and the chemo-resistant patients, who would potentially benefit from additional medical interventions. Finally, this eight-miRNA signature is an independent prognostic biomarker and demonstrates a good predictive performance for 5-year survival. Thus, this signature may serve as a novel biomarker for predicting survival as well as chemotherapy response in STAD patients.
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Alarcón A, Figueroa U, Espinoza B, Sandoval A, Carrasco-Aviño G, Aguayo FR, Corvalan AH. Epstein-Barr Virus–Associated Gastric Carcinoma: The Americas’ Perspective. Gastric Cancer 2017. [DOI: 10.5772/intechopen.70201] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Yang F, Li Y, Xu L, Zhu Y, Gao H, Zhen L, Fang L. miR-17 as a diagnostic biomarker regulates cell proliferation in breast cancer. Onco Targets Ther 2017; 10:543-550. [PMID: 28203087 PMCID: PMC5293507 DOI: 10.2147/ott.s127723] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Background MicroRNAs (miRNAs) have been shown to be involved in the initiation and progression of cancers in the literature. In this study, we aimed to evaluate the clinicopathological role of miR-17 in breast cancer. Materials and methods The expression of miR-17 was measured in 132 breast cancer tissues and paired adjacent normal tissues by using real-time quantitative polymerase chain reaction. The association between miR-17 expression levels and clinicopathological parameters was also analyzed. 3-(4,5-Dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide and flow cytometry assays were used to investigate the role of miR-17 in the regulation of breast cancer cells. Results The expression of miR-17 was remarkably increased in breast cancer tissues and cell lines. Clinical association analysis revealed that a high expression of miR-17 was prominently associated with poor survival time in breast cancer. Overexpression of miR-17 promoted cell proliferation and induced tumor growth. Conclusion Our findings clarified that the upregulation of miR-17 played a vital role in breast cancer progression and suggested that miR-17 could be used as a prognostic biomarker for breast cancer.
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Affiliation(s)
- Fangliang Yang
- Department of Thyroid and Breast Surgery, Changzhou No 2 People's Hospital Affiliated to Nanjing Medical University, Changzhou; Department of Thyroid and Breast Surgery, Shanghai No 10 People's Hospital, Clinical College of Nanjing Medical University, Shanghai, People's Republic of China
| | - Yuan Li
- Department of Thyroid and Breast Surgery, Changzhou No 2 People's Hospital Affiliated to Nanjing Medical University, Changzhou
| | - Lingyun Xu
- Department of Thyroid and Breast Surgery, Changzhou No 2 People's Hospital Affiliated to Nanjing Medical University, Changzhou
| | - Yulan Zhu
- Department of Thyroid and Breast Surgery, Changzhou No 2 People's Hospital Affiliated to Nanjing Medical University, Changzhou
| | - Haiyan Gao
- Department of Thyroid and Breast Surgery, Changzhou No 2 People's Hospital Affiliated to Nanjing Medical University, Changzhou
| | - Lin Zhen
- Department of Thyroid and Breast Surgery, Changzhou No 2 People's Hospital Affiliated to Nanjing Medical University, Changzhou
| | - Lin Fang
- Department of Thyroid and Breast Surgery, Shanghai No 10 People's Hospital, Clinical College of Nanjing Medical University, Shanghai, People's Republic of China
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