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Wang J, Yan P, Jia Y, Guo Z, Guo Y, Yin R, Wang L, Fan Z, Zhou Y, Yuan J, Yin R. Expression profiles of miRNAs in the lung tissue of piglets infected with Glaesserella parasuis and the roles of ssc-miR-135 and ssc-miR-155-3p in the regulation of inflammation. Comp Immunol Microbiol Infect Dis 2024; 111:102214. [PMID: 39002176 DOI: 10.1016/j.cimid.2024.102214] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2024] [Revised: 06/24/2024] [Accepted: 06/27/2024] [Indexed: 07/15/2024]
Abstract
MicroRNAs (miRNAs) have been shown to play an important regulatory role in the process of pathogenic infection. However, the miRNAs that regulate the pathogenic process of G. parasuis and their functions are still unknown. Here, high-throughput sequencing was used to quantify the expression of miRNA in piglet lung tissue after G. parasuis XX0306 strain infection. A total of 25 differentially expressed microRNAs (DEmiRNAs) were identified. GO and KEGG pathway enrichment analysis showed that many of the functions of genes that may be regulated by DEmiRNA are related to inflammatory response and immune regulation. Further studies found that ssc-miR-135 may promote the expression of inflammatory factors through NF-κB signaling pathway. Whereas, ssc-miR-155-3p inhibited the inflammatory response induced by G. parasuis, and its regulatory mechanism remains to be further investigated. This study provides a valuable reference for revealing the regulatory effects of miRNAs on the pathogenesis of G. parasuis. DATA AVAILABILITY: The datasets generated during the current study are not publicly available due to this study is currently in the ongoing research stage, and some of the data cannot be made public sooner yet, but are available from the corresponding author on reasonable request.
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Affiliation(s)
- Jingyi Wang
- Key Laboratory of Livestock Infectious Diseases, Ministry of Education, College of Animal Science and Veterinary Medicine, Shenyang Agricultural University, Shenyang 110866, China; College of Animal Husbandry and Veterinary Medicine, Jinzhou Medical University, Jinzhou 121000, China.
| | - Ping Yan
- Key Laboratory of Livestock Infectious Diseases, Ministry of Education, College of Animal Science and Veterinary Medicine, Shenyang Agricultural University, Shenyang 110866, China.
| | - Yongchao Jia
- Key Laboratory of Livestock Infectious Diseases, Ministry of Education, College of Animal Science and Veterinary Medicine, Shenyang Agricultural University, Shenyang 110866, China.
| | - Zhongbo Guo
- Key Laboratory of Livestock Infectious Diseases, Ministry of Education, College of Animal Science and Veterinary Medicine, Shenyang Agricultural University, Shenyang 110866, China.
| | - Ying Guo
- Key Laboratory of Livestock Infectious Diseases, Ministry of Education, College of Animal Science and Veterinary Medicine, Shenyang Agricultural University, Shenyang 110866, China.
| | - Ronglan Yin
- Research Academy of Animal Husbandry and Veterinary Medicine Sciences of Jilin Province, Changchun 130062, China.
| | - Linxi Wang
- Key Laboratory of Livestock Infectious Diseases, Ministry of Education, College of Animal Science and Veterinary Medicine, Shenyang Agricultural University, Shenyang 110866, China.
| | - Zenglei Fan
- Key Laboratory of Livestock Infectious Diseases, Ministry of Education, College of Animal Science and Veterinary Medicine, Shenyang Agricultural University, Shenyang 110866, China.
| | - Yuanyuan Zhou
- Key Laboratory of Livestock Infectious Diseases, Ministry of Education, College of Animal Science and Veterinary Medicine, Shenyang Agricultural University, Shenyang 110866, China.
| | - Jing Yuan
- Key Laboratory of Livestock Infectious Diseases, Ministry of Education, College of Animal Science and Veterinary Medicine, Shenyang Agricultural University, Shenyang 110866, China.
| | - Ronghuan Yin
- Key Laboratory of Livestock Infectious Diseases, Ministry of Education, College of Animal Science and Veterinary Medicine, Shenyang Agricultural University, Shenyang 110866, China.
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Liu M, Hu Z, Wang C, Zhang Y. The TLR/MyD88 signalling cascade in inflammation and gastric cancer: the immune regulatory network of Helicobacter pylori. J Mol Med (Berl) 2023; 101:767-781. [PMID: 37195446 DOI: 10.1007/s00109-023-02332-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Revised: 05/02/2023] [Accepted: 05/04/2023] [Indexed: 05/18/2023]
Abstract
Helicobacter pylori-induced chronic gastritis represents a well-established risk factor for gastric cancer (GC). However, the mechanism by which chronic inflammation caused by H. pylori induces the development of GC is unclear. H. pylori can influence host cell signalling pathways to induce gastric disease development and mediate cancer promotion and progression. Toll-like receptors (TLRs), as pattern recognition receptors (PRRs), play a key role in the gastrointestinal innate immune response, and their signalling has been implicated in the pathogenesis of an increasing number of inflammation-associated cancers. The core adapter myeloid differentiation factor-88 (MyD88) is shared by most TLRs and functions primarily in H. pylori-triggered innate immune signalling. MyD88 is envisioned as a potential target for the regulation of immune responses and is involved in the regulation of tumourigenesis in a variety of cancer models. In recent years, the TLR/MyD88 signalling pathway has received increasing attention for its role in regulating innate and adaptive immune responses, inducing inflammatory activation and promoting tumour formation. In addition, TLR/MyD88 signalling can manipulate the expression of infiltrating immune cells and various cytokines in the tumour microenvironment (TME). In this review, we discuss the pathogenetic regulatory mechanisms of the TLR/MyD88 signalling cascade pathway and its downstream molecules in H. pylori infection-induced-associated GC. The focus is to elucidate the immunomolecular mechanisms of pathogen recognition and innate immune system activation of H. pylori in the TME of inflammation-associated GC. Ultimately, this study will provide insight into the mechanism of H. pylori-induced chronic inflammation-induced GC development and provide thoughts for GC prevention and treatment strategies.
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Affiliation(s)
- Meiqi Liu
- Medical School, Cancer Research Institute, University of South China, Chang Sheng Xi Avenue 28, Hengyang City, Hunan, 421001, China
| | - Zhizhong Hu
- Medical School, Cancer Research Institute, University of South China, Chang Sheng Xi Avenue 28, Hengyang City, Hunan, 421001, China
| | - Chengkun Wang
- Medical School, Cancer Research Institute, University of South China, Chang Sheng Xi Avenue 28, Hengyang City, Hunan, 421001, China.
| | - Yang Zhang
- Medical School, Cancer Research Institute, University of South China, Chang Sheng Xi Avenue 28, Hengyang City, Hunan, 421001, China.
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3
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Hicks SD, Zhu D, Sullivan R, Kannikeswaran N, Meert K, Chen W, Suresh S, Sethuraman U. Saliva microRNA Profile in Children with and without Severe SARS-CoV-2 Infection. Int J Mol Sci 2023; 24:ijms24098175. [PMID: 37175883 PMCID: PMC10179619 DOI: 10.3390/ijms24098175] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Revised: 04/27/2023] [Accepted: 04/29/2023] [Indexed: 05/15/2023] Open
Abstract
Severe acute respiratory syndrome corona virus 2 (SARS-CoV-2) may impair immune modulating host microRNAs, causing severe disease. Our objectives were to determine the salivary miRNA profile in children with SARS-CoV-2 infection at presentation and compare the expression in those with and without severe outcomes. Children <18 years with SARS-CoV-2 infection evaluated at two hospitals between March 2021 and February 2022 were prospectively enrolled. Severe outcomes included respiratory failure, shock or death. Saliva microRNAs were quantified with RNA sequencing. Data on 197 infected children (severe = 45) were analyzed. Of the known human miRNAs, 1606 (60%) were measured and compared across saliva samples. There were 43 miRNAs with ≥2-fold difference between severe and non-severe cases (adjusted p-value < 0.05). The majority (31/43) were downregulated in severe cases. The largest between-group differences involved miR-4495, miR-296-5p, miR-548ao-3p and miR-1273c. These microRNAs displayed enrichment for 32 gene ontology pathways including viral processing and transforming growth factor beta and Fc-gamma receptor signaling. In conclusion, salivary miRNA levels are perturbed in children with severe COVID-19, with the majority of miRNAs being down regulated. Further studies are required to validate and determine the utility of salivary miRNAs as biomarkers of severe COVID-19.
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Affiliation(s)
- Steven D Hicks
- Department of Pediatrics, Pennsylvania State University Medical Center, Hershey, PA 17033, USA
| | - Dongxiao Zhu
- Department of Computer Science, Wayne State University, Detroit, MI 48201, USA
| | - Rhea Sullivan
- Department of Pediatrics, Pennsylvania State University Medical Center, Hershey, PA 17033, USA
| | - Nirupama Kannikeswaran
- Division of Emergency Medicine, Department of Pediatrics, Children's Hospital of Michigan, Central Michigan University, Detroit, MI 48201, USA
| | - Kathleen Meert
- Division of Critical Care, Department of Pediatrics, Children's Hospital of Michigan, Central Michigan University, Detroit, MI 48201, USA
| | - Wei Chen
- Population Science, Department of Oncology, School of Medicine, Wayne State University, Detroit, MI 48201, USA
| | - Srinivasan Suresh
- Department of Pediatrics, University of Pittsburgh, UPMC Children's Hospital of Pittsburgh, Pittsburgh, PA 15224, USA
| | - Usha Sethuraman
- Division of Emergency Medicine, Department of Pediatrics, Children's Hospital of Michigan, Central Michigan University, Detroit, MI 48201, USA
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4
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Rastegar-Moghaddam SH, Ebrahimzadeh-Bideskan A, Shahba S, Malvandi AM, Mohammadipour A. Roles of the miR-155 in Neuroinflammation and Neurological Disorders: A Potent Biological and Therapeutic Target. Cell Mol Neurobiol 2023; 43:455-467. [PMID: 35107690 DOI: 10.1007/s10571-022-01200-z] [Citation(s) in RCA: 21] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2021] [Accepted: 01/23/2022] [Indexed: 12/19/2022]
Abstract
Neuroinflammation plays a crucial role in the development and progression of neurological disorders. MicroRNA-155 (miR-155), a miR is known to play in inflammatory responses, is associated with susceptibility to inflammatory neurological disorders and neurodegeneration, including Alzheimer's disease, Parkinson's disease, multiple sclerosis, and amyotrophic lateral sclerosis as well as epilepsy, stroke, and brain malignancies. MiR-155 damages the central nervous system (CNS) by enhancing the expression of pro-inflammatory cytokines, like IL-1β, IL-6, TNF-α, and IRF3. It also disturbs the blood-brain barrier by decreasing junctional complex molecules such as claudin-1, annexin-2, syntenin-1, and dedicator of cytokinesis 1 (DOCK-1), a hallmark of many neurological disorders. This review discusses the molecular pathways which involve miR-155 as a critical component in the progression of neurological disorders, representing miR-155 as a viable therapeutic target.
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Affiliation(s)
- Seyed Hamidreza Rastegar-Moghaddam
- Department of Anatomy and Cell Biology, School of Medicine, Mashhad University of Medical Sciences, PO Box 91779-48564, Mashhad, Iran.,Applied Biomedical Research Center, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Alireza Ebrahimzadeh-Bideskan
- Department of Anatomy and Cell Biology, School of Medicine, Mashhad University of Medical Sciences, PO Box 91779-48564, Mashhad, Iran.,Applied Biomedical Research Center, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Sara Shahba
- Medical Biotechnology Research Center, School of Paramedicine, Guilan University of Medical Sciences, Rasht, Iran
| | - Amir Mohammad Malvandi
- Laboratory of Experimental Biochemistry & Molecular Biology, IRCCS Istituto Ortopedico Galeazzi, Via Riccardo Galeazzi, 4, 20161, Milan, Italy.
| | - Abbas Mohammadipour
- Department of Anatomy and Cell Biology, School of Medicine, Mashhad University of Medical Sciences, PO Box 91779-48564, Mashhad, Iran.
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5
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Stein RA, Thompson LM. Epigenetic changes induced by pathogenic Chlamydia spp. Pathog Dis 2023; 81:ftad034. [PMID: 38031337 DOI: 10.1093/femspd/ftad034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Revised: 11/16/2023] [Accepted: 11/28/2023] [Indexed: 12/01/2023] Open
Abstract
Chlamydia trachomatis, C. pneumoniae, and C. psittaci, the three Chlamydia species known to cause human disease, have been collectively linked to several pathologies, including conjunctivitis, trachoma, respiratory disease, acute and chronic urogenital infections and their complications, and psittacosis. In vitro, animal, and human studies also established additional correlations, such as between C. pneumoniae and atherosclerosis and between C. trachomatis and ovarian cancer. As part of their survival and pathogenesis strategies as obligate intracellular bacteria, Chlamydia spp. modulate all three major types of epigenetic changes, which include deoxyribonucleic acid (DNA) methylation, histone post-translational modifications, and microRNA-mediated gene silencing. Some of these epigenetic changes may be implicated in key aspects of pathogenesis, such as the ability of the Chlamydia spp. to induce epithelial-to-mesenchymal transition, interfere with DNA damage repair, suppress cholesterol efflux from infected macrophages, act as a co-factor in human papillomavirus (HPV)-mediated cervical cancer, prevent apoptosis, and preserve the integrity of mitochondrial networks in infected host cells. A better understanding of the individual and collective contribution of epigenetic changes to pathogenesis will enhance our knowledge about the biology of Chlamydia spp. and facilitate the development of novel therapies and biomarkers. Pathogenic Chlamydia spp. contribute to epigenetically-mediated gene expression changes in host cells by multiple mechanisms.
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Affiliation(s)
- Richard A Stein
- NYU Tandon School of Engineering, Department of Chemical and Biomolecular Engineering, 6 MetroTech Center, Brooklyn, NY 11201, United States
| | - Lily M Thompson
- NYU Tandon School of Engineering, Department of Chemical and Biomolecular Engineering, 6 MetroTech Center, Brooklyn, NY 11201, United States
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6
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Infection and Immunity. Clin Immunol 2023. [DOI: 10.1016/b978-0-12-818006-8.00007-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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7
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Kalkusova K, Taborska P, Stakheev D, Smrz D. The Role of miR-155 in Antitumor Immunity. Cancers (Basel) 2022; 14:5414. [PMID: 36358832 PMCID: PMC9659277 DOI: 10.3390/cancers14215414] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 10/30/2022] [Accepted: 10/31/2022] [Indexed: 09/19/2023] Open
Abstract
MicroRNAs belong to a group of short non-coding RNA molecules that are involved in the regulation of gene expression at multiple levels. Their function was described two decades ago, and, since then, microRNAs have become a rapidly developing field of research. Their participation in the regulation of cellular processes, such as proliferation, apoptosis, cell growth, and migration, made microRNAs attractive for cancer research. Moreover, as a single microRNA can simultaneously target multiple molecules, microRNAs offer a unique advantage in regulating multiple cellular processes in different cell types. Many of these cell types are tumor cells and the cells of the immune system. One of the most studied microRNAs in the context of cancer and the immune system is miR-155. MiR-155 plays a role in modulating innate and adaptive immune mechanisms in distinct immune cell types. As such, miR-155 can be part of the communication between the tumor and immune cells and thus impact the process of tumor immunoediting. Several studies have already revealed its effect on antitumor immune responses, and the targeting of this molecule is increasingly implemented in cancer immunotherapy. In this review, we discuss the current knowledge of miR-155 in the regulation of antitumor immunity and the shaping of the tumor microenvironment, and the plausible implementation of miR-155 targeting in cancer therapy.
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Affiliation(s)
- Katerina Kalkusova
- Department of Immunology, Second Faculty of Medicine, Charles University and Motol University Hospital, 150 06 Prague, Czech Republic
| | - Pavla Taborska
- Department of Immunology, Second Faculty of Medicine, Charles University and Motol University Hospital, 150 06 Prague, Czech Republic
| | - Dmitry Stakheev
- Department of Immunology, Second Faculty of Medicine, Charles University and Motol University Hospital, 150 06 Prague, Czech Republic
- Laboratory of Immunotherapy, Institute of Microbiology of the Czech Academy of Sciences, 142 20 Prague, Czech Republic
| | - Daniel Smrz
- Department of Immunology, Second Faculty of Medicine, Charles University and Motol University Hospital, 150 06 Prague, Czech Republic
- Laboratory of Immunotherapy, Institute of Microbiology of the Czech Academy of Sciences, 142 20 Prague, Czech Republic
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8
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Impact of microRNA Regulated Macrophage Actions on Adipose Tissue Function in Obesity. Cells 2022; 11:cells11081336. [PMID: 35456015 PMCID: PMC9024513 DOI: 10.3390/cells11081336] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 04/12/2022] [Accepted: 04/12/2022] [Indexed: 02/06/2023] Open
Abstract
Obesity-induced adipose tissue dysfunction is bolstered by chronic, low-grade inflammation and impairs systemic metabolic health. Adipose tissue macrophages (ATMs) perpetuate local inflammation but are crucial to adipose tissue homeostasis, exerting heterogeneous, niche-specific functions. Diversified macrophage actions are shaped through finely regulated factors, including microRNAs, which post-transcriptionally alter macrophage activation. Numerous studies have highlighted microRNAs’ importance to immune function and potential as inflammation-modulatory. This review summarizes current knowledge of regulatory networks governed by microRNAs in ATMs in white adipose tissue under obesity stress.
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9
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Tanga BM, Fang X, Bang S, Seong G, De Zoysa M, Saadeldin IM, Lee S, Cho J. MiRNA-155 inhibition enhances porcine embryo preimplantation developmental competence by upregulating ZEB2 and downregulating ATF4. Theriogenology 2022; 183:90-97. [DOI: 10.1016/j.theriogenology.2022.02.019] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Revised: 02/02/2022] [Accepted: 02/20/2022] [Indexed: 12/11/2022]
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10
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Liu AR, Yan ZW, Jiang LY, Lv Z, Li YK, Wang BG. The role of non-coding RNA in the diagnosis and treatment of Helicobacter pylori-related gastric cancer, with a focus on inflammation and immune response. Front Med (Lausanne) 2022; 9:1009021. [PMID: 36314013 PMCID: PMC9606473 DOI: 10.3389/fmed.2022.1009021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Accepted: 09/20/2022] [Indexed: 02/05/2023] Open
Abstract
Helicobacter pylori (H. pylori) is one of the globally recognized causative factors of gastric cancer (GC). Currently, no definite therapy and drugs for H. pylori-related GC have been widely acknowledged although H. pylori infection could be eradicated in early stage. Inflammation and immune response are spontaneous essential stages during H. pylori infection. H pylori may mediate immune escape by affecting inflammation and immune response, leading to gastric carcinogenesis. As an important component of transcriptome, non-coding RNAs (ncRNAs) have been proven to play crucial roles in the genesis and development of H. pylori-induced GC. This review briefly described the effects of ncRNAs on H. pylori-related GC from the perspective of inflammation and immune response, as well as their association with inflammatory reaction and immune microenvironment. We aim to explore the potential of ncRNAs as markers for the early diagnosis, prognosis, and treatment of H. pylori-related GC. The ncRNAs involved in H. pylori-related GC may all hold promise as novel therapeutic targets for immunotherapy.
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Affiliation(s)
- Ao-ran Liu
- Tumor Etiology and Screening Department of Cancer Institute and General Surgery, The First Affiliated Hospital of China Medical University, Key Laboratory of Cancer Etiology and Prevention, China Medical University, Liaoning Provincial Education Department, Shenyang, China
| | - Zi-wei Yan
- Tumor Etiology and Screening Department of Cancer Institute and General Surgery, The First Affiliated Hospital of China Medical University, Key Laboratory of Cancer Etiology and Prevention, China Medical University, Liaoning Provincial Education Department, Shenyang, China
| | - Li-yue Jiang
- Tangdu Hospital of the Fourth Military Medical University, Xi’an, China
| | - Zhi Lv
- Tumor Etiology and Screening Department of Cancer Institute and General Surgery, The First Affiliated Hospital of China Medical University, Key Laboratory of Cancer Etiology and Prevention, China Medical University, Liaoning Provincial Education Department, Shenyang, China
- Department of General Surgery, The First Hospital of China Medical University, Shenyang, China
- Zhi Lv,
| | - Yan-ke Li
- Tumor Etiology and Screening Department of Cancer Institute and General Surgery, The First Affiliated Hospital of China Medical University, Key Laboratory of Cancer Etiology and Prevention, China Medical University, Liaoning Provincial Education Department, Shenyang, China
- Department of General Surgery, The First Hospital of China Medical University, Shenyang, China
- Yan-ke Li,
| | - Ben-gang Wang
- Tumor Etiology and Screening Department of Cancer Institute and General Surgery, The First Affiliated Hospital of China Medical University, Key Laboratory of Cancer Etiology and Prevention, China Medical University, Liaoning Provincial Education Department, Shenyang, China
- Department of Hepatobiliary Surgery, Institute of General Surgery, The First Hospital of China Medical University, Shenyang, China
- *Correspondence: Ben-gang Wang,
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11
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Jankauskas SS, Gambardella J, Sardu C, Lombardi A, Santulli G. Functional Role of miR-155 in the Pathogenesis of Diabetes Mellitus and Its Complications. Noncoding RNA 2021; 7:ncrna7030039. [PMID: 34287359 PMCID: PMC8293470 DOI: 10.3390/ncrna7030039] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Revised: 06/30/2021] [Accepted: 07/03/2021] [Indexed: 12/11/2022] Open
Abstract
Substantial evidence indicates that microRNA-155 (miR-155) plays a crucial role in the pathogenesis of diabetes mellitus (DM) and its complications. A number of clinical studies reported low serum levels of miR-155 in patients with type 2 diabetes (T2D). Preclinical studies revealed that miR-155 partakes in the phenotypic switch of cells within the islets of Langerhans under metabolic stress. Moreover, miR-155 was shown to regulate insulin sensitivity in liver, adipose tissue, and skeletal muscle. Dysregulation of miR-155 expression was also shown to predict the development of nephropathy, neuropathy, and retinopathy in DM. Here, we systematically describe the reports investigating the role of miR-155 in DM and its complications. We also discuss the recent results from in vivo and in vitro models of type 1 diabetes (T1D) and T2D, discussing the differences between clinical and preclinical studies and shedding light on the molecular pathways mediated by miR-155 in different tissues affected by DM.
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Affiliation(s)
- Stanislovas S. Jankauskas
- Department of Medicine, Fleischer Institute for Diabetes and Metabolism (FIDAM), Einstein-Mount Sinai Diabetes Research Center (ES-DRC), Albert Einstein College of Medicine, New York, NY 10461, USA; (S.S.J.); (J.G.); (A.L.)
- Department of Molecular Pharmacology, Wilf Family Cardiovascular Research Institute, Einstein Institute for Aging Research, Albert Einstein College of Medicine, New York, NY 10461, USA
| | - Jessica Gambardella
- Department of Medicine, Fleischer Institute for Diabetes and Metabolism (FIDAM), Einstein-Mount Sinai Diabetes Research Center (ES-DRC), Albert Einstein College of Medicine, New York, NY 10461, USA; (S.S.J.); (J.G.); (A.L.)
- Department of Molecular Pharmacology, Wilf Family Cardiovascular Research Institute, Einstein Institute for Aging Research, Albert Einstein College of Medicine, New York, NY 10461, USA
- International Translational Research and Medical Education Consortium (ITME), Department of Advanced Biomedical Science, “Federico II” University, 80131 Naples, Italy
| | - Celestino Sardu
- Department of Advanced Medical and Surgical Sciences, University of Campania “Luigi Vanvitelli”, 80138 Naples, Italy;
| | - Angela Lombardi
- Department of Medicine, Fleischer Institute for Diabetes and Metabolism (FIDAM), Einstein-Mount Sinai Diabetes Research Center (ES-DRC), Albert Einstein College of Medicine, New York, NY 10461, USA; (S.S.J.); (J.G.); (A.L.)
| | - Gaetano Santulli
- Department of Medicine, Fleischer Institute for Diabetes and Metabolism (FIDAM), Einstein-Mount Sinai Diabetes Research Center (ES-DRC), Albert Einstein College of Medicine, New York, NY 10461, USA; (S.S.J.); (J.G.); (A.L.)
- Department of Molecular Pharmacology, Wilf Family Cardiovascular Research Institute, Einstein Institute for Aging Research, Albert Einstein College of Medicine, New York, NY 10461, USA
- International Translational Research and Medical Education Consortium (ITME), Department of Advanced Biomedical Science, “Federico II” University, 80131 Naples, Italy
- Correspondence:
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12
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Prinz C, Mese K, Weber D. MicroRNA Changes in Gastric Carcinogenesis: Differential Dysregulation during Helicobacter pylori and EBV Infection. Genes (Basel) 2021; 12:genes12040597. [PMID: 33921696 PMCID: PMC8073778 DOI: 10.3390/genes12040597] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Revised: 04/05/2021] [Accepted: 04/14/2021] [Indexed: 12/11/2022] Open
Abstract
Despite medical advances, gastric-cancer (GC) mortality remains high in Europe. Bacterial infection with Helicobacter pylori (H. pylori) and viral infection with the Epstein–Barr virus (EBV) are associated with the development of both distal and proximal gastric cancer. Therefore, the detection of these infections and the prediction of further cancer development could be clinically significant. To this end, microRNAs (miRNAs) could serve as promising new tools. MiRNAs are highly conserved noncoding RNAs that play an important role in gene silencing, mainly acting via translational repression and the degradation of mRNA targets. Recent reports demonstrate the downregulation of numerous miRNAs in GC, especially miR-22, miR-145, miR-206, miR-375, and miR-490, and these changes seem to promote cancer-cell invasion and tumor spreading. The dysregulation of miR-106b, miR-146a, miR-155, and the Let-7b/c complex seems to be of particular importance during H. pylori infection or gastric carcinogenesis. In contrast, many reports describe changes in host miRNA expression and outline the effects of bamHI-A region rightward transcript (BART) miRNA in EBV-infected tissue. The differential regulation of these miRNA, acting alone or in close interaction when both infections coexist, may therefore enable us to detect cancer earlier. In this review, we focus on the two different etiologies of gastric cancer and outline the molecular pathways through which H. pylori- or EBV-induced changes might synergistically act via miR-155 dysregulation to potentiate cancer risk. The three markers, namely, H. pylori presence, EBV infection, and miR-155 expression, may be checked in routine biopsies to evaluate the risk of developing gastric cancer.
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Affiliation(s)
- Christian Prinz
- Medizinische Klinik 2, Helios Universitätsklinikum Wuppertal, 42283 Wuppertal, Germany;
- Lehrstuhl Innere Medizin 1, University of Witten/Herdecke gGmbH, 42283 Wuppertal, Germany;
- Correspondence: ; Tel.: +49-202-896-2243; Fax: +49-202-896-2740
| | - Kemal Mese
- Lehrstuhl Innere Medizin 1, University of Witten/Herdecke gGmbH, 42283 Wuppertal, Germany;
- Institute of Virology, University of Göttingen, 37075 Göttingen, Germany
| | - David Weber
- Medizinische Klinik 2, Helios Universitätsklinikum Wuppertal, 42283 Wuppertal, Germany;
- Lehrstuhl Innere Medizin 1, University of Witten/Herdecke gGmbH, 42283 Wuppertal, Germany;
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13
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Riahi Rad Z, Riahi Rad Z, Goudarzi H, Goudarzi M, Mahmoudi M, Yasbolaghi Sharahi J, Hashemi A. MicroRNAs in the interaction between host-bacterial pathogens: A new perspective. J Cell Physiol 2021; 236:6249-6270. [PMID: 33599300 DOI: 10.1002/jcp.30333] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2020] [Revised: 02/04/2021] [Accepted: 02/08/2021] [Indexed: 12/17/2022]
Abstract
Gene expression regulation plays a critical role in host-pathogen interactions, and RNAs function is essential in this process. miRNAs are small noncoding, endogenous RNA fragments that affect stability and/or translation of mRNAs, act as major posttranscriptional regulators of gene expression. miRNA is involved in regulating many biological or pathological processes through targeting specific mRNAs, including development, differentiation, apoptosis, cell cycle, cytoskeleton organization, and autophagy. Deregulated microRNA expression is associated with many types of diseases, including cancers, immune disturbances, and infection. miRNAs are a vital section of the host immune response to bacterial-made infection. Bacterial pathogens suppress host miRNA expression for their benefit, promoting survival, replication, and persistence. The role played through miRNAs in interaction with host-bacterial pathogen has been extensively studied in the past 10 years, and knowledge about these staggering molecules' function can clarify the complicated and ambiguous interactions of the host-bacterial pathogen. Here, we review how pathogens prevent the host miRNA expression. We briefly discuss emerging themes in this field, including their role as biomarkers in identifying bacterial infections, as part of the gut microbiota, on host miRNA expression.
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Affiliation(s)
- Zohreh Riahi Rad
- Department of Microbiology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Zahra Riahi Rad
- Department of Microbiology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Hossein Goudarzi
- Department of Microbiology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mehdi Goudarzi
- Department of Microbiology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mohammad Mahmoudi
- Department of Immunology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Javad Yasbolaghi Sharahi
- Department of Microbiology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Ali Hashemi
- Department of Microbiology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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14
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Săsăran MO, Meliț LE, Dobru ED. MicroRNA Modulation of Host Immune Response and Inflammation Triggered by Helicobacter pylori. Int J Mol Sci 2021; 22:ijms22031406. [PMID: 33573346 PMCID: PMC7866828 DOI: 10.3390/ijms22031406] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Revised: 01/26/2021] [Accepted: 01/26/2021] [Indexed: 12/15/2022] Open
Abstract
Helicobacter pylori (H. pylori) remains the most-researched etiological factor for gastric inflammation and malignancies. Its evolution towards gastric complications is dependent upon host immune response. Toll-like receptors (TLRs) recognize surface and molecular patterns of the bacterium, especially the lipopolysaccharide (LPS), and act upon pathways, which will finally lead to activation of the nuclear factor-kappa B (NF-kB), a transcription factor that stimulates release of inflammatory cytokines. MicroRNAs (MiRNAs) finely modulate TLR signaling, but their expression is also modulated by activation of NF-kB-dependent pathways. This review aims to focus upon several of the most researched miRNAs on this subject, with known implications in host immune responses caused by H. pylori, including let-7 family, miRNA-155, miRNA-146, miRNA-125, miRNA-21, and miRNA-221. TLR-LPS interactions and their afferent pathways are regulated by these miRNAs, which can be considered as a bridge, which connects gastric inflammation to pre-neoplastic and malignant lesions. Therefore, they could serve as potential non-invasive biomarkers, capable of discriminating H. pylori infection, as well as its associated complications. Given that data on this matter is limited in children, as well as for as significant number of miRNAs, future research has yet to clarify the exact involvement of these entities in the progression of H. pylori-associated gastric conditions.
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Affiliation(s)
- Maria Oana Săsăran
- Department of Pediatrics III, “George Emil Palade” University of Medicine, Pharmacy, Sciences and Technology of Târgu Mureș, Gheorghe Marinescu Street no 38, 540136 Târgu Mureș, Romania;
| | - Lorena Elena Meliț
- Department of Pediatrics I, “George Emil Palade” University of Medicine, Pharmacy, Sciences and Technol-ogy of Târgu Mureș, Gheorghe Marinescu Street no 38, 540136 Târgu Mureș, Romania
- Correspondence: ; Tel.: +40-742-984744
| | - Ecaterina Daniela Dobru
- Department of Internal Medicine VII, “George Emil Palade” University of Medicine, Pharmacy, Sciences and Technology of Târgu Mureș, Gheorghe Marinescu Street no 38, 540136 Târgu Mureș, Romania;
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15
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Fitzsimons S, Oggero S, Bruen R, McCarthy C, Strowitzki MJ, Mahon NG, Ryan N, Brennan EP, Barry M, Perretti M, Belton O. microRNA-155 Is Decreased During Atherosclerosis Regression and Is Increased in Urinary Extracellular Vesicles During Atherosclerosis Progression. Front Immunol 2020; 11:576516. [PMID: 33391256 PMCID: PMC7773661 DOI: 10.3389/fimmu.2020.576516] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Accepted: 10/22/2020] [Indexed: 12/16/2022] Open
Abstract
Background Atherosclerosis is a chronic inflammatory disease driven by macrophage accumulation in medium and large sized arteries. Macrophage polarization and inflammation are governed by microRNAs (miR) that regulate the expression of inflammatory proteins and cholesterol trafficking. Previous transcriptomic analysis led us to hypothesize that miR-155-5p (miR-155) is regulated by conjugated linoleic acid (CLA), a pro-resolving mediator which induces regression of atherosclerosis in vivo. In parallel, as extracellular vesicles (EVs) and their miR content have potential as biomarkers, we investigated alterations in urinary-derived EVs (uEVs) during the progression of human coronary artery disease (CAD). Methods miR-155 expression was quantified in aortae from ApoE−/− mice fed a 1% cholesterol diet supplemented with CLA blend (80:20, cis-9,trans-11:trans-10,cis-12 respectively) which had been previously been shown to induce atherosclerosis regression. In parallel, human polarized THP-1 macrophages were used to investigate the effects of CLA blend on miR-155 expression. A miR-155 mimic was used to investigate its inflammatory effects on macrophages and on ex vivo human carotid endarterectomy (CEA) plaque specimens (n = 5). Surface marker expression and miR content were analyzed in urinary extracellular vesicles (uEVs) obtained from patients diagnosed with unstable (n = 12) and stable (n = 12) CAD. Results Here, we report that the 1% cholesterol diet increased miR-155 expression while CLA blend supplementation decreased miR-155 expression in the aorta during atherosclerosis regression in vivo. CLA blend also decreased miR-155 expression in vitro in human THP-1 polarized macrophages. Furthermore, in THP-1 macrophages, miR-155 mimic decreased the anti-inflammatory signaling proteins, BCL-6 and phosphorylated-STAT-3. In addition, miR-155 mimic downregulated BCL-6 in CEA plaque specimens. uEVs from patients with unstable CAD had increased expression of miR-155 in comparison to patients with stable CAD. While the overall concentration of uEVs was decreased in patients with unstable CAD, levels of CD45+ uEVs were increased. Additionally, patients with unstable CAD had increased CD11b+ uEVs and decreased CD16+ uEVs. Conclusion miR-155 suppresses anti-inflammatory signaling in macrophages, is decreased during regression of atherosclerosis in vivo and is increased in uEVs from patients with unstable CAD suggesting miR-155 has potential as a prognostic indicator and a therapeutic target.
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Affiliation(s)
- Stephen Fitzsimons
- Diabetes Complications Research Centre, School of Biomolecular and Biomedical Science, Conway Institute, University College Dublin, Dublin, Ireland
| | - Silvia Oggero
- William Harvey Research Institute, Barts and the London School of Medicine, Queen Mary University of London, London, United Kingdom
| | - Robyn Bruen
- Diabetes Complications Research Centre, School of Biomolecular and Biomedical Science, Conway Institute, University College Dublin, Dublin, Ireland
| | - Cathal McCarthy
- Department of Pharmacology and Therapeutics, University College Cork, Cork, Ireland
| | - Moritz J Strowitzki
- School of Medicine and Medical Science, University College Dublin, Dublin, Ireland
| | - Niall G Mahon
- School of Medicine and Medical Science, University College Dublin, Dublin, Ireland.,Department of Cardiology, Mater Misericordiae University Hospital, Dublin, Ireland
| | - Nicola Ryan
- Department of Cardiology, Mater Misericordiae University Hospital, Dublin, Ireland
| | - Eoin P Brennan
- Diabetes Complications Research Centre, School of Biomolecular and Biomedical Science, Conway Institute, University College Dublin, Dublin, Ireland
| | - Mary Barry
- Department of Vascular Surgery, St. Vincent's University Hospital, Dublin, Ireland
| | - Mauro Perretti
- William Harvey Research Institute, Barts and the London School of Medicine, Queen Mary University of London, London, United Kingdom
| | - Orina Belton
- Diabetes Complications Research Centre, School of Biomolecular and Biomedical Science, Conway Institute, University College Dublin, Dublin, Ireland
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16
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Fischer W, Tegtmeyer N, Stingl K, Backert S. Four Chromosomal Type IV Secretion Systems in Helicobacter pylori: Composition, Structure and Function. Front Microbiol 2020; 11:1592. [PMID: 32754140 PMCID: PMC7366825 DOI: 10.3389/fmicb.2020.01592] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2020] [Accepted: 06/18/2020] [Indexed: 12/14/2022] Open
Abstract
The pathogenic bacterium Helicobacter pylori is genetically highly diverse and a major risk factor for the development of peptic ulcer disease and gastric adenocarcinoma in humans. During evolution, H. pylori has acquired multiple type IV secretion systems (T4SSs), and then adapted for various purposes. These T4SSs represent remarkable molecular transporter machines, often associated with an extracellular pilus structure present in many bacteria, which are commonly composed of multiple structural proteins spanning the inner and outer membranes. By definition, these T4SSs exhibit central functions mediated through the contact-dependent conjugative transfer of mobile DNA elements, the contact-independent release and uptake of DNA into and from the extracellular environment as well as the secretion of effector proteins in mammalian host target cells. In recent years, numerous features on the molecular functionality of these T4SSs were disclosed. H. pylori encodes up to four T4SSs on its chromosome, namely the Cag T4SS present in the cag pathogenicity island (cagPAI), the ComB system, as well as the Tfs3 and Tfs4 T4SSs, some of which exhibit unique T4SS functions. The Cag T4SS facilitates the delivery of the CagA effector protein and pro-inflammatory signal transduction through translocated ADP-heptose and chromosomal DNA, while various structural pilus proteins can target host cell receptors such as integrins or TLR5. The ComB apparatus mediates the import of free DNA from the extracellular milieu, whereas Tfs3 may accomplish the secretion or translocation of effector protein CtkA. Both Tfs3 and Tfs4 are furthermore presumed to act as conjugative DNA transfer machineries due to the presence of tyrosine recombinases with cognate recognition sequences, conjugational relaxases, and potential origins of transfer (oriT) found within the tfs3 and tfs4 genome islands. In addition, some extrachromosomal plasmids, transposons and phages have been discovered in multiple H. pylori isolates. The genetic exchange mediated by DNA mobilization events of chromosomal genes and plasmids combined with recombination events could account for much of the genetic diversity found in H. pylori. In this review, we highlight our current knowledge on the four T4SSs and the involved mechanisms with consequences for H. pylori adaptation to the hostile environment in the human stomach.
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Affiliation(s)
- Wolfgang Fischer
- Max von Pettenkofer-Institut für Hygiene und Medizinische Mikrobiologie, Medizinische Fakultät, LMU München, Munich, Germany
| | - Nicole Tegtmeyer
- Department Biologie, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Kerstin Stingl
- Department of Biological Safety, National Reference Laboratory for Campylobacter, German Federal Institute for Risk Assessment (BfR), Berlin, Germany
| | - Steffen Backert
- Department Biologie, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
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17
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Guo P, Qiao F, Huang D, Wu Q, Chen T, Badawy S, Cheng G, Hao H, Xie S, Wang X. MiR-155-5p plays as a "janus" in the expression of inflammatory cytokines induced by T-2 toxin. Food Chem Toxicol 2020; 140:111258. [PMID: 32240701 DOI: 10.1016/j.fct.2020.111258] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2019] [Revised: 03/05/2020] [Accepted: 03/10/2020] [Indexed: 12/20/2022]
Abstract
Although many studies have shown that inflammatory response plays a crucial role in the various toxic effects of T-2 toxin, there are relatively few reports on the mechanism of this phenomenon. Meanwhile, accumulating evidence has shown that miR-155-5p is activated in the inflammatory response. As molecular pathways and mechanisms involved in T-2 toxin-induced inflammatory response are poorly elucidated, we assessed whether miR-155-5p is involved in the inflammation effects mediated by T-2 toxin. Treatment of RAW264.7 cells with T-2 toxin (14 nM and 12 h) resulted in inflammatory response and associated with alteration of the gene expression signature of miR-155-5p. Knockdown or overexpression of miR-155-5p both indicated that miR-155-5p positively regulated the expression of the inflammation factors. Moreover, bioinformatics prediction and luciferase assay indicated that atg3 and rheb are targets of miR-155-5p. However, atg3 and SOCS1 play positive roles in the inflammatory response regulated by miR-155-5p, while rheb plays a negative role. In addition, the in vivo study showed that single administration of T-2 toxin in mice enhances spleen immune response, which was accompanied by an overexpression of miR-155-5p. These findings indicate that miR-155-5p might have an important role associated with the inflammatory response induced by T-2 toxin. In conclusion, a dual character of miR-155-5p in inflammation response was revealed, which might exist in other reactions in which miR-155-5p is involved.
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Affiliation(s)
- Pu Guo
- National Reference Laboratory of Veterinary Drug Residues (HZAU) and MAO Key Laboratory for Detection of Veterinary Drug Residues, Huazhong Agricultural University, Wuhan, China; College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
| | - Fang Qiao
- National Reference Laboratory of Veterinary Drug Residues (HZAU) and MAO Key Laboratory for Detection of Veterinary Drug Residues, Huazhong Agricultural University, Wuhan, China
| | - Deyu Huang
- MOA Laboratory for Risk Assessment of Quality and Safety of Livestock and Poultry Products, Wuhan, China
| | - Qinghua Wu
- College of Life Science, Yangtze University, Jingzhou, China; Department of Chemistry, Faculty of Science, University of Hradec Kralove, Hradec Kralove, Czech Republic
| | - Tianlun Chen
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
| | - Sara Badawy
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
| | - Guyue Cheng
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
| | - Haihong Hao
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
| | - Shuyu Xie
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
| | - Xu Wang
- National Reference Laboratory of Veterinary Drug Residues (HZAU) and MAO Key Laboratory for Detection of Veterinary Drug Residues, Huazhong Agricultural University, Wuhan, China; MOA Laboratory for Risk Assessment of Quality and Safety of Livestock and Poultry Products, Wuhan, China; College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China.
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18
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Blosse A, Levy M, Robe C, Staedel C, Copie-Bergman C, Lehours P. Deregulation of miRNA in Helicobacter pylori-Induced Gastric MALT Lymphoma: From Mice to Human. J Clin Med 2019; 8:jcm8060845. [PMID: 31200531 PMCID: PMC6616415 DOI: 10.3390/jcm8060845] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2019] [Revised: 06/05/2019] [Accepted: 06/06/2019] [Indexed: 12/12/2022] Open
Abstract
Gastric MALT lymphoma (GML) is directly caused by Helicobacter pylori infection but occurs only in a small number of infected subjects. Mechanisms underlying the initiation and progression of GML remain unclear. MicroRNAs (miRNAs) are small non-coding RNAs that are now considered as major players in inflammation and carcinogenesis, acting as oncogenes or tumor suppressors. Previous laboratory studies have shown in a GML mouse model that overexpression of a distinct set of five miRNAs (miR-21a, miR-135b, miR-142a, miR-150, miR-155) could play a critical role in the pathogenesis of GML. Our goal was to compare the miRNA expression profile obtained in the GML mouse model to that in human GML (11 cases of GML compared to 17 cases of gastritis control population). RTqPCR on the five dysregulated miRNAs in the GML mouse model and PCR array followed by RTqPCR confirmation showed that four miRNAs were up-regulated (miR-150, miR-155, miR-196a, miR-138) and two miRNAs down-regulated (miR-153, miR-7) in the stomachs of GML patients vs. gastritis control population. The analysis of their validated targets allowed us to postulate that these miRNAs (except miR-138) could act synergistically in a common signaling cascade promoting lymphomagenesis and could be involved in the pathogenesis of GML.
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Affiliation(s)
- Alice Blosse
- INSERM, Université Bordeaux, UMR1053 Bordeaux Research in Translational Oncology, BaRITOn, 33000 Bordeaux, France.
| | - Michael Levy
- EC2M3: Department of Academic Research (EA7375), Université Paris Est Créteil (UPEC), Val de Marne, 94000 Créteil, France.
- Department of Gastroenterology, Henri Mondor Hospital, APHP, 94000 Créteil, France.
| | | | - Cathy Staedel
- INSERM U1212, ARNA Laboratory, Université de Bordeaux, 33000 Bordeaux, France.
| | - Christiane Copie-Bergman
- Department of Pathology, Henri Mondor Hospital, APHP, INSERM U955, Equipe 9, Université Paris-Est, 94000 Créteil, France.
| | - Philippe Lehours
- INSERM, Université Bordeaux, UMR1053 Bordeaux Research in Translational Oncology, BaRITOn, 33000 Bordeaux, France.
- French National Reference Center for Campylobacters & Helicobacters, 33000 Bordeaux, France.
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19
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Bayraktar R, Bertilaccio MTS, Calin GA. The Interaction Between Two Worlds: MicroRNAs and Toll-Like Receptors. Front Immunol 2019; 10:1053. [PMID: 31139186 PMCID: PMC6527596 DOI: 10.3389/fimmu.2019.01053] [Citation(s) in RCA: 69] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2018] [Accepted: 04/24/2019] [Indexed: 12/12/2022] Open
Abstract
MicroRNAs (miRNAs) are critical mediators of posttranscriptional regulation via their targeting of the imperfect antisense complementary regions of coding and non-coding transcripts. Recently, researchers have shown that miRNAs play roles in many aspects of regulation of immune cell function by targeting of inflammation-associated genes, including Toll-like receptors (TLRs). Besides this indirect regulatory role of miRNAs, they can also act as physiological ligands of specific TLRs and initiate the signaling cascade of immune response. In this review, we summarize the potential roles of miRNAs in regulation of TLR gene expression and TLR signaling, with a focus on the ability of miRNAs bind to TLRs.
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Affiliation(s)
- Recep Bayraktar
- Department of Experimental Therapeutics, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | | | - George A Calin
- Department of Experimental Therapeutics, The University of Texas MD Anderson Cancer Center, Houston, TX, United States.,Center for RNA Interference and Non-Coding RNAs, The University of Texas MD Anderson Cancer Center, Houston, TX, United States.,Department of Leukemia, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
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20
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Aguilar C, Mano M, Eulalio A. Multifaceted Roles of microRNAs in Host-Bacterial Pathogen Interaction. Microbiol Spectr 2019; 7:10.1128/microbiolspec.bai-0002-2019. [PMID: 31152522 PMCID: PMC11026079 DOI: 10.1128/microbiolspec.bai-0002-2019] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2018] [Indexed: 02/06/2023] Open
Abstract
MicroRNAs (miRNAs) are a well-characterized class of small noncoding RNAs that act as major posttranscriptional regulators of gene expression. Accordingly, miRNAs have been associated with a wide range of fundamental biological processes and implicated in human diseases. During the past decade, miRNAs have also been recognized for their role in the complex interplay between the host and bacterial pathogens, either as part of the host response to counteract infection or as a molecular strategy employed by bacteria to subvert host pathways for their own benefit. Importantly, the characterization of downstream miRNA targets and their underlying mechanisms of action has uncovered novel molecular factors and pathways relevant to infection. In this article, we review the current knowledge of the miRNA response to bacterial infection, focusing on different bacterial pathogens, including Salmonella enterica, Listeria monocytogenes, Mycobacterium spp., and Helicobacter pylori, among others.
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Affiliation(s)
- Carmen Aguilar
- Host RNA Metabolism Group, Institute for Molecular Infection Biology (IMIB), University of Würzburg, Würzburg, Germany
| | - Miguel Mano
- Functional Genomics and RNA-Based Therapeutics Group, Center for Neuroscience and Cell Biology (CNC), University of Coimbra, Coimbra, Portugal
| | - Ana Eulalio
- Host RNA Metabolism Group, Institute for Molecular Infection Biology (IMIB), University of Würzburg, Würzburg, Germany
- RNA & Infection Group, Center for Neuroscience and Cell Biology (CNC), University of Coimbra, Coimbra, Portugal
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21
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Curtale G, Rubino M, Locati M. MicroRNAs as Molecular Switches in Macrophage Activation. Front Immunol 2019; 10:799. [PMID: 31057539 PMCID: PMC6478758 DOI: 10.3389/fimmu.2019.00799] [Citation(s) in RCA: 125] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2018] [Accepted: 03/26/2019] [Indexed: 12/25/2022] Open
Abstract
The efficacy of macrophage- mediated inflammatory response relies on the coordinated expression of key factors, which expression is finely regulated at both transcriptional and post-transcriptional level. Several studies have provided compelling evidence that microRNAs play pivotal roles in modulating macrophage activation, polarization, tissue infiltration, and resolution of inflammation. In this review, we highlight the essential molecular mechanisms underlying the different phases of inflammation that are targeted by microRNAs to inhibit or accelerate restoration to tissue integrity and homeostasis. We further review the impact of microRNA-dependent regulation of tumor-associated macrophages and the relative implication for tumor biology.
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Affiliation(s)
- Graziella Curtale
- Department of Medical Biotechnologies and Translational Medicine, University of Milan, Milan, Italy.,Humanitas Clinical and Research Center - IRCCS, Rozzano, Italy
| | - Marcello Rubino
- Humanitas Clinical and Research Center - IRCCS, Rozzano, Italy
| | - Massimo Locati
- Department of Medical Biotechnologies and Translational Medicine, University of Milan, Milan, Italy.,Humanitas Clinical and Research Center - IRCCS, Rozzano, Italy
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22
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Nie L, Cai SY, Sun J, Chen J. MicroRNA-155 promotes pro-inflammatory functions and augments apoptosis of monocytes/macrophages during Vibrio anguillarum infection in ayu, Plecoglossus altivelis. FISH & SHELLFISH IMMUNOLOGY 2019; 86:70-81. [PMID: 30447432 DOI: 10.1016/j.fsi.2018.11.030] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/03/2018] [Revised: 11/07/2018] [Accepted: 11/13/2018] [Indexed: 06/09/2023]
Abstract
Upon recognition of pathogen-associated molecular patterns by pattern-recognition receptors, immune cells are recruited, and multiple antibacterial/viral signaling pathways are activated, leading to the production of immune-related cytokines, chemokines, and interferons along with further activation of the adaptive immune response. MicroRNAs (miRs) play essential roles in regulating such immune signaling pathways, as well as the biological activities of immune cells; however, knowledge regarding the roles of miRs in the immune-related function of monocytes/macrophages (MO/MΦ) remains limited in teleosts. In the present study, we addressed the effects of miR-155 on Vibrio anguillarum-infected MO/MΦ. Our results showed that miR-155 augmented MO/MΦ expression of proinflammatory cytokines and attenuated the expression of anti-inflammatory cytokines. Additionally, the phagocytosis and bacteria-killing abilities of these cells were boosted by miR-155 administration, which also promoted M1-type polarization but inhibited M2-type polarization. Furthermore, the V. anguillarum-infection-induced apoptosis was also enhanced by miR-155 mimic transfection, which might have been due to excessive inflammation or the accumulation of reactive oxygen species. These results represent the first report providing a detailed account of the regulatory roles of miR-155 on MO/MΦ functions in teleosts and offer insight into the evolutionary history of miR-155-mediated regulation of host immune responses.
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Affiliation(s)
- Li Nie
- Laboratory of Biochemistry and Molecular Biology, School of Marine Sciences, Meishan Campus, Ningbo University, Ningbo, 315800, China
| | - Shi-Yu Cai
- Laboratory of Biochemistry and Molecular Biology, School of Marine Sciences, Meishan Campus, Ningbo University, Ningbo, 315800, China
| | - Jiao Sun
- Laboratory of Biochemistry and Molecular Biology, School of Marine Sciences, Meishan Campus, Ningbo University, Ningbo, 315800, China
| | - Jiong Chen
- Laboratory of Biochemistry and Molecular Biology, School of Marine Sciences, Meishan Campus, Ningbo University, Ningbo, 315800, China; Key Laboratory of Applied Marine Biotechnology of Ministry of Education, Meishan Campus, Ningbo University, Ningbo, 315800, China.
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23
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Zou D, Xu L, Li H, Ma Y, Gong Y, Guo T, Jing Z, Xu X, Zhang Y. Role of abnormal microRNA expression in Helicobacter pylori associated gastric cancer. Crit Rev Microbiol 2019; 45:239-251. [PMID: 30776938 DOI: 10.1080/1040841x.2019.1575793] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Epidemiological studies have shown that Helicobacter pylori (HP) infection is a risk factor for gastric cancer (GC). HP infection may induce the release of pro-inflammatory mediators, and abnormally increase the level of reactive oxygen species (ROS), nitric oxide (NO), and cytokines in mucosal epithelial cells of the stomach. However, the specific mechanism underlying the pathogenesis of HP-associated GC is still poorly understood. Recent studies have revealed that abnormal microRNA expression may affect the proliferation, differentiation, and apoptosis of mucosal epithelial cells of the stomach to further influence GC occurrence, development, and metastasis. Herein, we summarize the role of abnormal microRNAs in the regulation of HP-associated GC progression. Abnormal microRNA expression in HP-positive GC may be a biomarker for GC diagnosis, occurrence, and development as well as its targeted treatment and prognosis.
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Affiliation(s)
- Dan Zou
- a The First laboratory of cancer institute , First Hospital of China Medical University , Shenyang , China
| | - Ling Xu
- b Department of Medical Oncology , First Hospital of China Medical University , Shenyang , China
| | - Heming Li
- b Department of Medical Oncology , First Hospital of China Medical University , Shenyang , China.,c Department of Oncology , Affiliated Zhongshan Hospital of Dalian University , Dalian , China
| | - Yanju Ma
- b Department of Medical Oncology , First Hospital of China Medical University , Shenyang , China.,d Department of Medical Oncology , Cancer Hospital of China Medical University , Shenyang , China
| | - Yuehua Gong
- e Department of Tumor Etiology and Screening Department of Cancer Institute and General Surgery, First Hospital of China Medical University , Key Laboratory of Cancer Etiology and Prevention (China Medical University), Liaoning Provincial Education Department , Shenyang , China
| | - Tianshu Guo
- b Department of Medical Oncology , First Hospital of China Medical University , Shenyang , China
| | - Zhitao Jing
- f Department of Neurosurgery , First Hospital of China Medical University , Shenyang , China
| | - Xiuying Xu
- g Department of Gastroenterology , First Hospital of China Medical University , Shenyang , China
| | - Ye Zhang
- a The First laboratory of cancer institute , First Hospital of China Medical University , Shenyang , China
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Yu J, Xu Q, Zhang X, Zhu M. Circulating microRNA signatures serve as potential diagnostic biomarkers for Helicobacter pylori infection. J Cell Biochem 2019; 120:1735-1741. [PMID: 30324743 DOI: 10.1002/jcb.27462] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2018] [Accepted: 07/19/2018] [Indexed: 01/24/2023]
Abstract
Helicobacter pylor (H pylori), a Gram-negative, microaerobic human pathogen, has been found to be involved in many gastroduodenal diseases. Accurate diagnosis of H pylori infection is a vital part of the effective management of gastroduodenal diseases. Circulating microRNAs (miRNAs) have shown the potential to be used as noninvasive biomarkers for the diagnosis of infectious diseases. The aim of this study was to explore plasma miRNAs as noninvasive biomarkers for H pylori infection. We performed a plasma miRNA expression profile using Illumina high-throughput sequencing and validated the levels of differentially expressed miRNAs in the plasma of 63 H pylori-infected patients and 41 healthy volunteers by quantitative real-time polymerase chain reaction (qRT-PCR). The sequencing results showed that 37 miRNAs were upregulated in the H pylori-infected patients compared with that in the healthy volunteers, while six miRNAs were downregulated. qRT-PCR and receiver operator characteristic analysis suggested that the expression of miR-28-3p, miR-143-3p, miR-151a-3p, and miR-148a-3p were closely associated with H pylori infection. Therefore, the four plasma miRNA panels mentioned above could serve as promising noninvasive biomarkers of H pylori infection.
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Affiliation(s)
- Jie Yu
- Colorectal Surgery, Jingzhou Central Hospital, The Second Clinical Medical College, Yangtze University, Jingzhou, China
| | - Qiaoxia Xu
- Nursing Department, Huaiyin Hospital of Huai'an City, Huai'an, Jiangsu, China
| | - Xiaoyu Zhang
- Department of General Surgery, Huai'an Second People's Hospital and The Affiliated Huai'an Hospital of Xuzhou Medical University, Huai'an, Jiangsu, China
| | - Miao Zhu
- Department of Surgical Oncology, Affiliated Hospital of Nanjing University of TCM, Nanjing, Jiangsu, China
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Legionella pneumophila infection-mediated regulation of RICTOR via miR-218 in U937 macrophage cells. Biochem Biophys Res Commun 2019; 508:608-613. [PMID: 30509489 DOI: 10.1016/j.bbrc.2018.11.093] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2018] [Accepted: 11/14/2018] [Indexed: 11/20/2022]
Abstract
BACKGROUND Inhalation of aerosolized Legionella pneumophila, a Gram-negative bacterium, can cause severe pneumonia. During infection, L. pneumophila replicates intracellularly in macrophages. The involvement of host microRNAs (miRNAs) in L. pneumophila infection is not fully understood. METHODS The human macrophage-like cell line U937 was infected with L. pneumophila. The levels of miRNA and messenger RNA (mRNA) were measured using reverse transcriptase polymerase chain reaction. Release of lactate dehydrogenase was used to evaluate cytotoxicity. The expression of RICTOR and related proteins was examined by western blotting of cell lysates. RESULTS L. pneumophila infection upregulated the expression of miR-218 and the host genes SLIT2 and SLIT3 in U937 cells. The expression of RICTOR, a component of the mechanistic target of rapamycin complex 2 (mTORC2), decreased during L. pneumophila infection. RICTOR protein expression was inhibited by the overexpression of miR-218, whereas knockdown of miR-218 restored the downregulation of RICTOR by L. pneumophila. L. pneumophila infection induced the expression of the proinflammatory cytokines IL-6 and TNF-alpha, which was modulated by knockdown of miR-218 or RICTOR. CONCLUSIONS Our study revealed the involvement of miR-218 in regulating the inflammatory response of macrophages against L. pneumophila infection. These findings suggest potential novel roles for miR-218 and RICTOR as therapeutic targets of L. pneumophila infection.
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Mechanisms of Inflammasome Signaling, microRNA Induction and Resolution of Inflammation by Helicobacter pylori. Curr Top Microbiol Immunol 2019; 421:267-302. [PMID: 31123893 DOI: 10.1007/978-3-030-15138-6_11] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Inflammasome-controlled transcription and subsequent cleavage-mediated activation of mature IL-1β and IL-18 cytokines exemplify a crucial innate immune mechanism to combat intruding pathogens. Helicobacter pylori represents a predominant persistent infection in humans, affecting approximately half of the population worldwide, and is associated with the development of chronic gastritis, peptic ulcer disease, and gastric cancer. Studies in knockout mice have demonstrated that the pro-inflammatory cytokine IL-1β plays a central role in gastric tumorigenesis. Infection by H. pylori was recently reported to stimulate the inflammasome both in cells of the mouse and human immune systems. Using mouse models and in vitro cultured cell systems, the bacterial pathogenicity factors and molecular mechanisms of inflammasome activation have been analyzed. On the one hand, it appears that H. pylori-stimulated IL-1β production is triggered by engagement of the immune receptors TLR2 and NLRP3, and caspase-1. On the other hand, microRNA hsa-miR-223-3p is induced by the bacteria, which controls the expression of NLRP3. This regulating effect by H. pylori on microRNA expression was also described for more than 60 additionally identified microRNAs, indicating a prominent role for inflammatory and other responses. Besides TLR2, TLR9 becomes activated by H. pylori DNA and further TLR10 stimulated by the bacteria induce the secretion of IL-8 and TNF, respectively. Interestingly, TLR-dependent pathways can accelerate both pro- and anti-inflammatory responses during H. pylori infection. Balancing from a pro-inflammation to anti-inflammation phenotype results in a reduction in immune attack, allowing H. pylori to persistently colonize and to survive in the gastric niche. In this chapter, we will pinpoint the role of H. pylori in TLR- and NLRP3 inflammasome-dependent signaling together with the differential functions of pro- and anti-inflammatory cytokines. Moreover, the impact of microRNAs on H. pylori-host interaction will be discussed, and its role in resolution of infection versus chronic infection, as well as in gastric disease development.
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Wang W, Zhang Y, Wang L, Li J, Li Y, Yang X, Wu Y. mircroRNA-152 prevents the malignant progression of atherosclerosis via down-regulation of KLF5. Biomed Pharmacother 2018; 109:2409-2414. [PMID: 30551500 DOI: 10.1016/j.biopha.2018.08.014] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2018] [Accepted: 08/05/2018] [Indexed: 11/29/2022] Open
Abstract
Macrophages' function play a vital role in the progression of atherosclerosis (AS), and miRNAs can modulate inflammatory cytokine secretion, lipid uptake and apoptosis of macrophages. miR-152 is down-regulated in the serum samples of AS patients and inhibits the migration of human umbilical vein endothelial cell, suggesting that miR-152 exerts a role in the atherogenesis. Nevertheless, the function of miR-152 in the inflammatory reaction of macrophages remains unexplored. Besides, bioinformatics shows that KLF5 is a direct target of miR-152. As a result, the objective of this study is to investigate the effects and mechanism of miR-152/KLF5 in the inflammatory reaction of macrophages. ApoE knockdown mouse (ApoE-/-) fed with high fat diet (HFD) was used as animal AS models. Ox-LDL treated RAW264.7 cell was used as cell model. Results showed that miR-152 expression was reduced, while KLF5 expression was elevated in the aortic tissues of AS mice, as compared with that of the control mice. Up-regulation of miR-152 significantly reduced the elevated expression of IL-1, IL-6 and TNF-α mediated by ox-LDL in the cultural supernatant of RAW264.7 cells and reduced β-catenin expression, whereas these effects were all neutralized when KLF5 was up-regulated in the base of miR-152 up-regulation. In conclusion, this study illustrates that miR-152 alleviates the pathogenesis of AS through inhibiting inflammatory responses by targeting KLF5, in which β-catenin might involves in. Our study provides a possibility of consideration of miR-152/KLF5 as a target for AS treatment.
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Affiliation(s)
- Wei Wang
- Department of Emergency and Critical Care Medicine, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - Ye Zhang
- Department of Emergency and Critical Care Medicine, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - Ling Wang
- Department of Medicine Lab, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - Jin Li
- Department of Emergency and Critical Care Medicine, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - Yongxi Li
- Department of Cardiovascular Medicine, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - Xiaoyan Yang
- Department of Cardiovascular Medicine, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - Yanqing Wu
- Department of Cardiovascular Medicine, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China.
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28
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Dyer V, Brüggemann H, Sörensen M, Kühl AA, Hoffman K, Brinkmann V, Reines MDM, Zimmerman S, Meyer TF, Koch M. Genomic features of the Helicobacter pylori strain PMSS1 and its virulence attributes as deduced from its in vivo colonisation patterns. Mol Microbiol 2018; 110:761-776. [PMID: 30230643 DOI: 10.1111/mmi.14123] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2018] [Revised: 08/27/2018] [Accepted: 09/05/2018] [Indexed: 12/19/2022]
Abstract
The human gastric pathogen Helicobacter pylori occurs in two basic variants, either exhibiting a functional cagPAI-encoded type-4-secretion-system (T4SS) or not. Only a few cagPAI-positive strains have been successfully adapted for long-term infection of mice, including the pre-mouse Sydney strain 1 (PMSS1). Here we confirm that PMSS1 induces gastric inflammation and neutrophil infiltration in mice, progressing to intestinal metaplasia. Complete genome analysis of PMSS1 revealed 1,423 coding sequences, encompassing the cagPAI gene cluster and, unusually, the location of the cytotoxin-associated gene A (cagA) approximately 15 kb downstream of the island. PMSS1 harbours three genetically exchangeable loci that are occupied by the hopQ coding sequences. HopQ represents a critical co-factor required for the translocation of CagA into the host cell and activation of NF-κB via the T4SS. Long-term colonisation of mice led to an impairment of cagPAI functionality. One of the bacterial clones re-isolated at four months post-infection revealed a mutation in the cagPAI gene cagW, resulting in a frame shift mutation, which prevented CagA translocation, possibly due to an impairment of T4SS function. Rescue of the mutant cagW re-established CagA translocation. Our data reveal intriguing insights into the adaptive abilities of PMSS1, suggesting functional modulation of the H. pylori cagPAI virulence attribute.
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Affiliation(s)
- Victoria Dyer
- Department of Molecular Biology, Max Planck Institute for Infection Biology, Berlin, 10117, Germany
| | - Holger Brüggemann
- Department of Biomedicine, Aarhus University, Aarhus C, 8000, Denmark
| | - Meike Sörensen
- Department of Molecular Biology, Max Planck Institute for Infection Biology, Berlin, 10117, Germany
| | - Anja A Kühl
- Division of Gastroenterology, Infectiology and Rheumatology, Medical Department, Campus Benjamin Franklin, Charité, Berlin, 12200, Germany
| | - Kirstin Hoffman
- Department of Molecular Biology, Max Planck Institute for Infection Biology, Berlin, 10117, Germany
| | - Volker Brinkmann
- Department of Molecular Biology, Max Planck Institute for Infection Biology, Berlin, 10117, Germany
| | - Maria Del Mar Reines
- Department of Molecular Biology, Max Planck Institute for Infection Biology, Berlin, 10117, Germany
| | - Stephanie Zimmerman
- Department of Molecular Biology, Max Planck Institute for Infection Biology, Berlin, 10117, Germany
| | - Thomas F Meyer
- Department of Molecular Biology, Max Planck Institute for Infection Biology, Berlin, 10117, Germany
| | - Manuel Koch
- Department of Molecular Biology, Max Planck Institute for Infection Biology, Berlin, 10117, Germany
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29
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Ro Y, Jo G, Jung S, Lee E, Shin J, Lee J. Salmonella‑induced miR‑155 enhances necroptotic death in macrophage cells via targeting RIP1/3. Mol Med Rep 2018; 18:5133-5140. [DOI: 10.3892/mmr.2018.9525] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2018] [Accepted: 09/21/2018] [Indexed: 11/06/2022] Open
Affiliation(s)
- Young‑Tae Ro
- Laboratory of Biochemistry, Graduate School of Medicine, Konkuk University, Chungju, Chungcheong 27478, Republic of Korea
| | - Guk‑Heui Jo
- Laboratory of Cell Biology, Myunggok Eye Research Institute, Konyang University College of Medicine, Seoul 07301, Republic of Korea
| | - Sun‑Ah Jung
- Laboratory of Cell Biology, Myunggok Eye Research Institute, Konyang University College of Medicine, Seoul 07301, Republic of Korea
| | - Eunjoo Lee
- Graduate School of East‑West Medical Science, Kyung Hee University, Yongin, Gyeonggi 17104, Republic of Korea
| | - Jongdae Shin
- Laboratory of Cell Biology, Myunggok Eye Research Institute, Konyang University College of Medicine, Seoul 07301, Republic of Korea
| | - Joon Lee
- Laboratory of Cell Biology, Myunggok Eye Research Institute, Konyang University College of Medicine, Seoul 07301, Republic of Korea
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30
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miRNAs reshape immunity and inflammatory responses in bacterial infection. Signal Transduct Target Ther 2018; 3:14. [PMID: 29844933 PMCID: PMC5968033 DOI: 10.1038/s41392-018-0006-9] [Citation(s) in RCA: 88] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2017] [Revised: 11/20/2017] [Accepted: 12/10/2017] [Indexed: 12/15/2022] Open
Abstract
Pathogenic bacteria cause various infections worldwide, especially in immunocompromised and other susceptible individuals, and are also associated with high infant mortality rates in developing countries. MicroRNAs (miRNAs), small non-coding RNAs with evolutionarily conserved sequences, are expressed in various tissues and cells that play key part in various physiological and pathologic processes. Increasing evidence implies roles for miRNAs in bacterial infectious diseases by modulating inflammatory responses, cell penetration, tissue remodeling, and innate and adaptive immunity. This review highlights some recent intriguing findings, ranging from the correlation between aberrant expression of miRNAs with bacterial infection progression to their profound impact on host immune responses. Harnessing of dysregulated miRNAs in bacterial infection may be an approach to improving the diagnosis, prevention and therapy of infectious diseases. Changes in production of tiny cellular RNAs in response to bacterial infection could guide the development of better diagnostics and therapies. MicroRNAs regulate other genes by binding to messenger RNA strands and controlling their translation into proteins. Xikun Zhou, Min Wu and colleagues of the University of North Dakota have now reviewed current knowledge about how microRNA levels shift during infection with various bacterial pathogens. These microRNAs can modulate the immune response as well as pathways that influence metabolic activity and cell survival. Increasing studies have indicated that shifts in microRNA levels in response to different infections could provide a potential bacterial ‘fingerprint’ for achieving accurate diagnosis. With deeper insight into how different microRNAs influence infection, it might one day day become possible to target these molecules with ‘antisense’ or ‘agonist’ drugs that modulate their activity.
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31
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Zhou Y, Song Y, Shaikh Z, Li H, Zhang H, Caudle Y, Zheng S, Yan H, Hu D, Stuart C, Yin D. MicroRNA-155 attenuates late sepsis-induced cardiac dysfunction through JNK and β-arrestin 2. Oncotarget 2018; 8:47317-47329. [PMID: 28525390 PMCID: PMC5564567 DOI: 10.18632/oncotarget.17636] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2017] [Accepted: 04/19/2017] [Indexed: 12/21/2022] Open
Abstract
Cardiac dysfunction is correlated with detrimental prognosis of sepsis and contributes to a high risk of mortality. After an initial hyperinflammatory reaction, most patients enter a protracted state of immunosuppression (late sepsis) that alters both innate and adaptive immunity. The changes of cardiac function in late sepsis are not yet known. MicroRNA-155 (miR-155) is previously found to play important roles in both regulations of immune activation and cardiac function. In this study, C57BL/6 mice were operated to develop into early and late sepsis phases, and miR-155 mimic was injected through the tail vein 48 h after cecal ligation and puncture (CLP). The effect of miR-155 on CLP-induced cardiac dysfunction was explored in late sepsis. We found that increased expression of miR-155 in the myocardium protected against cardiac dysfunction in late sepsis evidenced by attenuating sepsis-reduced cardiac output and enhancing left ventricular systolic function. We also observed that miR-155 markedly reduced the infiltration of macrophages and neutrophils into the myocardium and attenuated the inflammatory response via suppression of JNK signaling pathway. Moreover, overexpression of β-arrestin 2 (Arrb2) exacerbated the mice mortality and immunosuppression in late sepsis. Furthermore, transfection of miR-155 mimic reduced Arrb2 expression, and then restored immunocompetence and improved survival in late septic mice. We conclude that increased miR-155 expression through systemic administration of miR-155 mimic attenuates cardiac dysfunction and improves late sepsis survival by targeting JNK associated inflammatory signaling and Arrb2 mediated immunosuppression.
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Affiliation(s)
- Yu Zhou
- Department of Internal Medicine, College of Medicine, East Tennessee State University, Johnson City, TN 37614, USA.,Department of Neurology, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - Yan Song
- Department of Vascular Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China.,Department of Internal Medicine, College of Medicine, East Tennessee State University, Johnson City, TN 37614, USA
| | - Zahir Shaikh
- Department of Internal Medicine, College of Medicine, East Tennessee State University, Johnson City, TN 37614, USA
| | - Hui Li
- Department of Internal Medicine, College of Medicine, East Tennessee State University, Johnson City, TN 37614, USA
| | - Haiju Zhang
- Department of Internal Medicine, College of Medicine, East Tennessee State University, Johnson City, TN 37614, USA
| | - Yi Caudle
- Department of Internal Medicine, College of Medicine, East Tennessee State University, Johnson City, TN 37614, USA
| | - Shouhua Zheng
- Department of Thyroid Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - Hui Yan
- Department of Internal Medicine, College of Medicine, East Tennessee State University, Johnson City, TN 37614, USA
| | - Dan Hu
- Department of Neurology, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - Charles Stuart
- Department of Internal Medicine, College of Medicine, East Tennessee State University, Johnson City, TN 37614, USA
| | - Deling Yin
- Department of Internal Medicine, College of Medicine, East Tennessee State University, Johnson City, TN 37614, USA
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32
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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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33
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Qin Y, Wade PA. Crosstalk between the microbiome and epigenome: messages from bugs. J Biochem 2018; 163:105-112. [PMID: 29161429 PMCID: PMC5892391 DOI: 10.1093/jb/mvx080] [Citation(s) in RCA: 125] [Impact Index Per Article: 20.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2017] [Accepted: 10/31/2017] [Indexed: 01/07/2023] Open
Abstract
Mammals exist in a complicated symbiotic relationship with their gut microbiome, which is postulated to have broad impacts on host health and disease. As omics-based technologies have matured, the potential mechanisms by which the microbiome affects host physiology are being addressed. The gut microbiome, which provides environmental cues, can modify host cell responses to stimuli through alterations in the host epigenome and, ultimately, gene expression. Increasing evidence highlights microbial generation of bioactive compounds that impact the transcriptional machinery in host cells. Here, we review current understanding of the crosstalk between gut microbiota and the host epigenome, including DNA methylation, histone modification and non-coding RNAs. These studies are providing insights into how the host responds to microbial signalling and are predicted to provide information for the application of precision medicine.
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Affiliation(s)
- Yufeng Qin
- Epigenetics and Stem Cell Biology Laboratory, National Institute of Environmental Health Sciences, Research Triangle Park, NC 27709, USA
| | - Paul A Wade
- Epigenetics and Stem Cell Biology Laboratory, National Institute of Environmental Health Sciences, Research Triangle Park, NC 27709, USA
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34
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Czimmerer Z, Horvath A, Daniel B, Nagy G, Cuaranta-Monroy I, Kiss M, Kolostyak Z, Poliska S, Steiner L, Giannakis N, Varga T, Nagy L. Dynamic transcriptional control of macrophage miRNA signature via inflammation responsive enhancers revealed using a combination of next generation sequencing-based approaches. BIOCHIMICA ET BIOPHYSICA ACTA-GENE REGULATORY MECHANISMS 2018; 1861:14-28. [DOI: 10.1016/j.bbagrm.2017.11.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/2017] [Revised: 10/23/2017] [Accepted: 11/09/2017] [Indexed: 12/26/2022]
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35
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Zheng Y, Li Y, Liu G, Qi X, Cao X. MicroRNA-24 inhibits the proliferation and migration of endothelial cells in patients with atherosclerosis by targeting importin-α3 and regulating inflammatory responses. Exp Ther Med 2017; 15:338-344. [PMID: 29250154 DOI: 10.3892/etm.2017.5355] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2016] [Accepted: 05/19/2017] [Indexed: 12/25/2022] Open
Abstract
The aim of the present study was to measure the level of microRNA (miRNA or miR)-24 in the serum of patients with atherosclerosis and to investigate the effect of miR-24 on the expression of importin-α3 and tumor necrosis factor (TNF)-α, as well as the proliferation and migration of vascular endothelial cells. A total of 30 patients with atherosclerosis admitted to hospital between January and June 2016 were enrolled in the present study; 30 healthy subjects with a similar age range were enrolled as controls. Peripheral blood (10 ml) was collected from all participants. Human umbilical vein endothelial cells (HUVECs) were transfected with miR-24 mimic using Lipofectamine 2000. TargetScan was used to elucidate whether importin-α3 (KPNA4) was a target gene of miR-24. Expression levels of miR-24 and mRNAs were measured using reverse transcription-quantitative polymerase chain reaction, and protein expression was determined using western blotting. Cell Counting Kit 8 assay was used to assess the proliferation of HUVECs, and a Transwell assay was performed to detect the migration of HUVECs. Expression of miR-24 in peripheral blood from patients with atherosclerosis was significantly lower when compared with healthy subjects (P<0.05). Overexpression of miR-24 was demonstrated to significantly inhibit the transcription and translation of the importin-α3 gene (P<0.05) and negatively regulate the expression of endothelial inflammatory factor TNF-α (P<0.05). Furthermore, overexpression of miR-24 significantly inhibited the proliferation and migration of HUVECs (P<0.05), and miR-24 knockdown significantly promoted these processes (P<0.05). The results of the present study suggest that miR-24 exerts its effect in atherosclerosis by blocking the nuclear factor-κB signaling pathway, regulating inflammation in endothelial cells, and inhibiting the proliferation and migration of vascular endothelial cells.
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Affiliation(s)
- Ye Zheng
- Graduate School of Tianjin Medical University, Tianjin 300070, P.R. China.,Department of Cardiovascular Medicine, Cangzhou Central Hospital, Cangzhou, Hebei 061001, P.R. China
| | - Yongxing Li
- Department of Cardiovascular Medicine, Cangzhou Central Hospital, Cangzhou, Hebei 061001, P.R. China
| | - Gang Liu
- Department of Cardiovascular Medicine, First Hospital of Hebei Medical University, Shijiazhuang, Hebei 050000, P.R. China
| | - Xiangqian Qi
- Department of Cardiovascular Medicine, Tianjin TEDA International Cardiovascular Hospital, Tianjin 300000, P.R. China
| | - Xufen Cao
- Department of Cardiovascular Medicine, Cangzhou Central Hospital, Cangzhou, Hebei 061001, P.R. China
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36
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Keck J, Gupta R, Christenson LK, Arulanandam BP. MicroRNA mediated regulation of immunity against gram-negative bacteria. Int Rev Immunol 2017; 36:287-299. [PMID: 28800263 PMCID: PMC6904929 DOI: 10.1080/08830185.2017.1347649] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Evidence over the last couple decades has comprehensively established that short, highly conserved, non-coding RNA species called microRNA (miRNA) exhibit the ability to regulate expression and function of host genes at the messenger RNA (mRNA) level. MicroRNAs play key regulatory roles in immune cell development, differentiation, and protective function. Intrinsic host immune response to invading pathogens rely on intricate orchestrated events in the development of innate and adaptive arms of immunity. We discuss the involvement of miRNAs in regulating these processes against gram negative pathogens in this review.
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Affiliation(s)
- Jonathon Keck
- South Texas Center for Emerging Infectious Diseases and Center of Excellence in Infection Genomics, University of Texas at San Antonio, One UTSA Circle, San Antonio, TX 78249
| | - Rishein Gupta
- South Texas Center for Emerging Infectious Diseases and Center of Excellence in Infection Genomics, University of Texas at San Antonio, One UTSA Circle, San Antonio, TX 78249
| | - Lane K. Christenson
- Department of Molecular and Integrative Physiology, University of Kansas Medical Center, Kansas City, Kansas 66160
| | - Bernard P. Arulanandam
- South Texas Center for Emerging Infectious Diseases and Center of Excellence in Infection Genomics, University of Texas at San Antonio, One UTSA Circle, San Antonio, TX 78249
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Abstract
An increasing number of diseases are being newly closely associated with inflammation, where microRNAs seem to play a critical role in the whole disease process from initiation to development. MicroRNAs are small non-coding RNAs that govern gene expression and modulation by means of mRNA degradation or translational repression. After several profound research studies, new correlations between microRNA-155 and inflammation-related diseases are strongly emerging. Hence, we review in this paper the possible molecular mechanisms of microRNA-155 in inflammatory disorders. Furthermore, we also consider the feasibility of targeting it as a bright alternative to improve the early diagnose statistics and treatments in those diseases. MicroRNA-155 features a novel breakthrough in fine-tuning inflammatory responses and, thereby, in treating a wide spectrum of diseases with inflammation as a common denominator.
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Liu C, Sun Z, Xu Z, Liu T, Pan T, Li S. Down-regulation of microRNA-155 promotes selenium deficiency-induced apoptosis by tumor necrosis factor receptor superfamily member 1B in the broiler spleen. Oncotarget 2017; 8:58513-58525. [PMID: 28938575 PMCID: PMC5601671 DOI: 10.18632/oncotarget.17222] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2017] [Accepted: 03/22/2017] [Indexed: 12/18/2022] Open
Abstract
The aim of this work was to explore the microRNA profile and the effect of microRNA-155 on apoptosis in the spleen of selenium-deficient broilers. We replicated the splenic-apoptotic model in selenium-deficient broilers. In vitro, microRNA-155 oligonucleotides were transfected into lymphocytes and subsequently treated with H2O2. We observed that selenium deficiency altered the microRNA profile and decreased the expression of microRNA-155 in the broiler spleens. Tumor necrosis factor receptor superfamily member 1B was verified as a target of microRNA-155 in the splenocytes. Morphological changes, increased levels of tumor necrosis factor receptor superfamily member 1B, c-Jun N-terminal kinase, Bak, Bax, Cyt-c, caspase9 and caspase3 and decreased levels of Bcl-2 demonstrated that selenium deficiency induced apoptosis in the spleen tissues. In vitro, microRNA-155 m inhibited the levels of ROS and reduced apoptosis compared with microRNA-155i in the lymphocytes. These results suggested that the reduced levels of microRNA-155 due to selenium deficiency could promote oxidative stress-induced apoptosis by increased tumor necrosis factor receptor superfamily member 1B in splenic cells.
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Affiliation(s)
- Ci Liu
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, P. R. China
| | - Zhepeng Sun
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, P. R. China
| | - Zhe Xu
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, P. R. China
| | - Tianqi Liu
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, P. R. China
| | - Tingru Pan
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, P. R. China
| | - Shu Li
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, P. R. China
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Purified Streptococcus pneumoniae Endopeptidase O (PepO) Enhances Particle Uptake by Macrophages in a Toll-Like Receptor 2- and miR-155-Dependent Manner. Infect Immun 2017; 85:IAI.01012-16. [PMID: 28193634 DOI: 10.1128/iai.01012-16] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2016] [Accepted: 02/03/2017] [Indexed: 12/12/2022] Open
Abstract
Insights into the host-microbial virulence factor interaction, especially the immune signaling mechanisms, could provide novel prevention and treatment options for pneumococcal diseases. Streptococcus pneumoniae endopeptidase O (PepO) is a newly discovered and ubiquitously expressed pneumococcal virulence protein. A PepO-mutant strain showed impaired adherence to and invasion of host cells compared with the isogenic wild-type strain. It is still unknown whether PepO is involved in the host defense response to pneumococcal infection. Here, we demonstrated that PepO could enhance phagocytosis of Streptococcus pneumoniae and Staphylococcus aureus by peritoneal exudate macrophages (PEMs). Further studies showed that PepO stimulation upregulated the expression of microRNA-155 (miR-155) in PEMs in a time- and dose-dependent manner. PepO-induced enhanced phagocytosis was decreased in cells transfected with an inhibitor of miR-155, while it was increased in cells transfected with a mimic of miR-155. We also revealed that PepO-induced upregulation of miR-155 in PEMs was mediated by Toll-like receptor 2 (TLR2)-NF-κB signaling and that the increased expression of miR-155 downregulated expression of SHIP1. Taken together, these results indicate that PepO induces upregulation of miR-155 in PEMs, contributing to enhanced phagocytosis and host defense response to pneumococci and Staphylococcus aureus.
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Zhang ZM, Zhang AR, Xu M, Lou J, Qiu WQ. TLR-4/miRNA-32-5p/FSTL1 signaling regulates mycobacterial survival and inflammatory responses in Mycobacterium tuberculosis-infected macrophages. Exp Cell Res 2017; 352:313-321. [PMID: 28215633 DOI: 10.1016/j.yexcr.2017.02.025] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2016] [Revised: 02/13/2017] [Accepted: 02/15/2017] [Indexed: 02/06/2023]
Abstract
Macrophages play a pivotal role in host immune response against mycobacterial infection, which is tightly modulated by multiple factors, including microRNAs. The purpose of the present study was to investigate the biological function and potential mechanism of miR-32-5p in human macrophages during Mycobacterium tuberculosis (M.tb) infection. The results demonstrated that miR-32-5p was robustly enhanced in THP-1 and U937 cells in response to M.tb infection. TLR-4 signaling was required for upregulation of miR-32-5p induced by M.tb infection. Additionally, the introduction of miR-32-5p strongly increased the survival rate of intracellular mycobacteria, whereas inhibition of miR-32-5p suppressed intracellular growth of mycobacteria during M.tb challenged. Furthermore, forced expression of miR-32-5p dramatically attenuated the accumulation of inflammatory cytokines IL-1β, IL-6 and TNF-α induced by M.tb infection. Conversely, downregulated expression of miR-32-5p led to enhancement in these inflammatory cytokines. More importantly, our study explored that Follistatin-like protein 1 (FSTL1) was a direct and functional target of miR-32-5p. qRT-PCR and western blot analysis further validated that miR-32-5p negatively regulated the expression of FSTL1. Mechanistically, re-expression of FSTL1 attenuated the ability of miR-32-5p to promote mycobacterial survival. Meanwhile, miR-32-5p-mediated inhibition of the inflammatory cytokine production were completely reversed by overexpression of FSTL1. Collectively, our findings demonstrated a novel role of TLR-4/miRNA-32-5p/FSTL1 in the modulation of host defense against mycobacterial infection, which may provide a better understanding of the pathogenesis of tuberculosis and useful information for developing potential therapeutic interventions against the disease.
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Affiliation(s)
- Zhi-Min Zhang
- Department of Clinical Laboratory, the Central Hospital of Zhumadian, Zhumadian, Henan 463000, PR China.
| | - Ai-Rong Zhang
- Department of Clinical Laboratory, the Central Hospital of Zhumadian, Zhumadian, Henan 463000, PR China
| | - Min Xu
- Department of Clinical Laboratory, the Central Hospital of Zhumadian, Zhumadian, Henan 463000, PR China
| | - Jun Lou
- Department of Clinical Laboratory, the Central Hospital of Zhumadian, Zhumadian, Henan 463000, PR China
| | - Wei-Qiang Qiu
- Department of Clinical Laboratory, the Central Hospital of Zhumadian, Zhumadian, Henan 463000, PR China
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Chen Y, Salem M, Boyd M, Bornholdt J, Li Y, Coskun M, Seidelin JB, Sandelin A, Nielsen OH. Relation between NOD2 genotype and changes in innate signaling in Crohn's disease on mRNA and miRNA levels. NPJ Genom Med 2017; 2:3. [PMID: 29263823 PMCID: PMC5642384 DOI: 10.1038/s41525-016-0001-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2016] [Revised: 11/11/2016] [Accepted: 11/11/2016] [Indexed: 02/07/2023] Open
Abstract
Crohn’s disease is associated with an altered innate immune response of pathogenic importance. This altered response can be associated to loss-of-function polymorphisms in the NOD2 (nucleotide-binding oligomerization domain-containing protein 2) gene, but also changes in transcriptional and post-transcriptional regulatory layers, including microRNA activity. Here, we characterized the link between NOD2 genotype and inflammatory-mediated changes in innate signaling by studying transcriptional and post-transcriptional activity in response to NOD2-agonist muramyl dipeptide in monocytes from healthy controls, and Crohn’s disease patients with and without NOD2 loss-of-function polymorphisms. We measured the expression of genes and microRNAs in monocytes from these subjects after stimulation with muramyl dipeptide. Gene expression profiles mainly distinguished the actual muramyl dipeptide response, but not the genotype. A hyper-responsive phenotype was found in Crohn’s disease patients without NOD2 mutations, characterized by upregulated cytokine receptors and general downregulation of microRNA expression. Conversely, microRNA expression could identify genotype-specific differences between subject groups but exhibited little change upon muramyl dipeptide treatment. Only two microRNAs showed muramyl dipeptide-induced response, including miR-155, which was found to regulate multiple genes and whose host gene was one of the highest muramyl dipeptide responders. miR-155 was upregulated in Crohn’s disease patients with NOD2 mutations following lipopolysaccharide and Escherichia coli treatment, but the upregulation was substantially reduced upon muramyl dipeptide treatment. While Crohn’s disease patients with NOD2 mutations on average showed a reduced muramyl dipeptide response, the cohort exhibited large individual variance: a small subset had inflammatory responses almost comparable to wild-type patients on both gene and miR-155 regulatory levels. The genetics of people with Crohn’s disease affects the molecular drivers of their dysregulated immune responses. Some individuals with Crohn’s harbor mutations in the NOD2 gene, which encodes a pathogen recognition receptor that binds to a molecule called muramyl dipeptide (MDP). To better understand how alternations in NOD2 can lead to increased susceptibility to gut inflammation, Yun Chen, Mohammad Salem and colleagues from the University of Copenhagen and Herlev Hospital, Denmark, analyzed the expression patterns of both genes and small, regulatory microRNAs in blood cells from healthy controls and from Crohn’s patients with and without NOD2 mutations. They exposed the cells to MDP, and saw that although gene acticity changed dramatically as a response, there was little difference between subjects, regardless of genetics. Conversely, microRNA expression showed genotype-specific differences that weren not impacted by MDP treatment. The findings underscore the importance of microRNAs in Crohn’s disease.
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Affiliation(s)
- Yun Chen
- The Bioinformatics Centre, Department of Biology and Biotech Research and Innovation Centre, University of Copenhagen, Ole Maaloes Vej 5, DK-2200 Copenhagen, Denmark
| | - Mohammad Salem
- Department of Gastroenterology, Medical Section, Herlev Hospital, University of Copenhagen, Herlev Ringvej 75, DK-2730 Herlev, Denmark
| | - Mette Boyd
- The Bioinformatics Centre, Department of Biology and Biotech Research and Innovation Centre, University of Copenhagen, Ole Maaloes Vej 5, DK-2200 Copenhagen, Denmark
| | - Jette Bornholdt
- The Bioinformatics Centre, Department of Biology and Biotech Research and Innovation Centre, University of Copenhagen, Ole Maaloes Vej 5, DK-2200 Copenhagen, Denmark
| | - Yuan Li
- Department of Gastroenterology, Medical Section, Herlev Hospital, University of Copenhagen, Herlev Ringvej 75, DK-2730 Herlev, Denmark
| | - Mehmet Coskun
- The Bioinformatics Centre, Department of Biology and Biotech Research and Innovation Centre, University of Copenhagen, Ole Maaloes Vej 5, DK-2200 Copenhagen, Denmark.,Department of Gastroenterology, Medical Section, Herlev Hospital, University of Copenhagen, Herlev Ringvej 75, DK-2730 Herlev, Denmark
| | - Jakob Benedict Seidelin
- Department of Gastroenterology, Medical Section, Herlev Hospital, University of Copenhagen, Herlev Ringvej 75, DK-2730 Herlev, Denmark
| | - Albin Sandelin
- The Bioinformatics Centre, Department of Biology and Biotech Research and Innovation Centre, University of Copenhagen, Ole Maaloes Vej 5, DK-2200 Copenhagen, Denmark
| | - Ole Haagen Nielsen
- Department of Gastroenterology, Medical Section, Herlev Hospital, University of Copenhagen, Herlev Ringvej 75, DK-2730 Herlev, Denmark
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42
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Zhang K, Jing X, Wang G. MicroRNAs as regulators of drug abuse and immunity. Cent Eur J Immunol 2017; 41:426-434. [PMID: 28450806 PMCID: PMC5382888 DOI: 10.5114/ceji.2016.65142] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2015] [Accepted: 05/02/2016] [Indexed: 01/01/2023] Open
Abstract
MicroRNAs (miRNAs) are 20-22 nucleotide non-coding RNAs that participate in gene regulation. They bind to 3'-untranslated regions of their mRNA targets, inhibiting the transcripts' translation and/or destabilizing them. Chronic drug abuse induces changes of miRNAs expression in the brain, which is thought to contribute to addictive behaviors. Lots of miRNAs have been identified to play critical roles in the development of drug addiction. Moreover, miRNAs have been shown to play critical roles in a broad array of biologic processes, including regulation of the cell cycle, oncogenic transformation, immune cell regeneration and differentiation, and psychiatry disorders. We hypothesized that chronic drug abuse leads to aberrant expression of several miRNAs, and then aberrant miRNAs influence the innate and adaptive immunity, especially differentiation and function of T cells and B cells, through down-regulated miRNAs' target gene expression. Characterization of miRNA actions is important and has high potential effect for the management of drug addiction and immunity diseases. miRNAs are potential biomarkers, and the modulation of their expression can be used for therapeutic purposes.
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Affiliation(s)
- Kai Zhang
- Wuxi Mental Health Center, Nanjing Medical University, Wuxi, China
| | - Xuxiu Jing
- Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Guoqiang Wang
- Wuxi Mental Health Center, Nanjing Medical University, Wuxi, China
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43
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Santos JC, Brianti MT, Almeida VR, Ortega MM, Fischer W, Haas R, Matheu A, Ribeiro ML. Helicobacter pylori infection modulates the expression of miRNAs associated with DNA mismatch repair pathway. Mol Carcinog 2016; 56:1372-1379. [PMID: 27862371 DOI: 10.1002/mc.22590] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2016] [Revised: 10/27/2016] [Accepted: 11/11/2016] [Indexed: 02/06/2023]
Abstract
Genetic and epigenetic inactivation of DNA mismatch repair (MMR) genes might lead to modifications in cancer-related gene expression and cancer development. Recently, it has been shown that the infection by Helicobacter pylori, the major causative agent of gastric cancer, induces DNA damage and inhibits MMR DNA repair. Also, it has been reported that microRNAs (miRs) have an important role in regulating genomic stability and MMR DNA repair. Thus, the aim of this study was to identify miRs regulating MMR pathway in H. pylori-associated gastric carcinogenesis. To address this question, a gastric epithelial cell line and AGS cancer gastric cells were infected with several H. pylori strains. MMR gene expression and miRs correlating with H. pylori strain infection were evaluated. The results showed that H. pylori infection significantly down-regulated the expression of all selected MMR genes. Also, H. pylori infection modulated the expression of several miRs (including miR-150-5p, miR-155-5p, and miR-3163), after 4, 8, and 12 h of infection. Computational prediction of candidate miRs and their predicted MMR targeting sites were obtained from TargetScan, mirDB, and MetaCore. The generated data indicated that the selected miRs (miR-150-5p, miR-155-5p, and miR-3163) could possibly target and modulate MMR genes (POLD3, MSH2, and MSH3, respectively). The target validation was performed using mimics and luciferase gene reporter assays. Briefly, this study shows that H. pylori impairs MMR DNA repair pathway and identifies miRs that regulate MMR gene expression in gastric cancer. © 2016 Wiley Periodicals, Inc.
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Affiliation(s)
- Juliana C Santos
- Clinical Pharmacology and Gastroenterology Unit, São Francisco University Medical School, São Francisco University, Bragança Paulista, São Paulo, Brazil.,Women's Integrated Healthcare Center (CAISM), State University of Campinas, (UNICAMP) Campinas, São Paulo, Brazil
| | - Mitsue T Brianti
- Clinical Pharmacology and Gastroenterology Unit, São Francisco University Medical School, São Francisco University, Bragança Paulista, São Paulo, Brazil
| | - Victor R Almeida
- Clinical Pharmacology and Gastroenterology Unit, São Francisco University Medical School, São Francisco University, Bragança Paulista, São Paulo, Brazil
| | - Manoela M Ortega
- Clinical Pharmacology and Gastroenterology Unit, São Francisco University Medical School, São Francisco University, Bragança Paulista, São Paulo, Brazil
| | - Wolfgang Fischer
- Max von Pettenkofer-Institut, Ludwig-Maximilians-Universität, München, Germany
| | - Rainer Haas
- Max von Pettenkofer-Institut, Ludwig-Maximilians-Universität, München, Germany
| | - Ander Matheu
- Cellular Oncology Group, Biodonostia Health Research Institute, San Sebastian, and IKERBASQUE, Basque Foundation, Bilbao, Spain
| | - Marcelo L Ribeiro
- Clinical Pharmacology and Gastroenterology Unit, São Francisco University Medical School, São Francisco University, Bragança Paulista, São Paulo, Brazil
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44
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Wei Y, Schober A. MicroRNA regulation of macrophages in human pathologies. Cell Mol Life Sci 2016; 73:3473-95. [PMID: 27137182 PMCID: PMC11108364 DOI: 10.1007/s00018-016-2254-6] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2016] [Revised: 04/15/2016] [Accepted: 04/26/2016] [Indexed: 12/19/2022]
Abstract
Macrophages play a crucial role in the innate immune system and contribute to a broad spectrum of pathologies, like in the defence against infectious agents, in inflammation resolution, and wound repair. In the past several years, microRNAs (miRNAs) have been demonstrated to play important roles in immune diseases by regulating macrophage functions. In this review, we will summarize the role of miRNAs in the differentiation of monocytes into macrophages, in the classical and alternative activation of macrophages, and in the regulation of phagocytosis and apoptosis. Notably, miRNAs preferentially target genes related to the cellular cholesterol metabolism, which is of key importance for the inflammatory activation and phagocytic activity of macrophages. miRNAs functionally link various mechanisms involved in macrophage activation and contribute to initiation and resolution of inflammation. miRNAs represent promising diagnostic and therapeutic targets in different conditions, such as infectious diseases, atherosclerosis, and cancer.
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Affiliation(s)
- Yuanyuan Wei
- Experimental Vascular Medicine, Institute for Cardiovascular Prevention, Ludwig-Maximilians-University Munich, Pettenkoferstrasse 9, 80336, Munich, Germany
- DZHK (German Center for Cardiovascular Research), Partner Site Munich Heart Alliance, 80802, Munich, Germany
| | - Andreas Schober
- Experimental Vascular Medicine, Institute for Cardiovascular Prevention, Ludwig-Maximilians-University Munich, Pettenkoferstrasse 9, 80336, Munich, Germany.
- DZHK (German Center for Cardiovascular Research), Partner Site Munich Heart Alliance, 80802, Munich, Germany.
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45
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Control of the Inflammatory Macrophage Transcriptional Signature by miR-155. PLoS One 2016; 11:e0159724. [PMID: 27447824 PMCID: PMC4957803 DOI: 10.1371/journal.pone.0159724] [Citation(s) in RCA: 105] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2016] [Accepted: 07/07/2016] [Indexed: 12/24/2022] Open
Abstract
Inflammatory M1 spectrum macrophages protect from infection but can cause inflammatory disease and tissue damage, whereas alternatively activated/M2 spectrum macrophages reduce inflammation and promote tissue repair. Modulation of macrophage phenotype may be therapeutically beneficial and requires further understanding of the molecular programs that control macrophage differentiation. A potential mechanism by which macrophages differentiate may be through microRNA (miRNA), which bind to messenger RNA and post-transcriptionally modify gene expression, cell phenotype and function. We hypothesized that the inflammation-associated miRNA, miR-155, would be required for typical development of macrophage inflammatory state. miR-155 was rapidly up-regulated over 100-fold in inflammatory M1(LPS + IFN-γ), but not M2(IL-4), macrophages. Inflammatory genes Inos, Il1b and Tnfa and their corresponding protein or enzymatic products were reduced up to 72% in miR-155 knockout mouse M1(LPS + IFN-γ) macrophages, but miR-155 deficiency did not affect expression of the M2-associated gene Arg1 in M2(IL-4) macrophages. Additionally, a miR-155 oligonucleotide inhibitor efficiently suppressed Inos and Tnfa gene expression in wild-type M1(LPS + IFN-γ) macrophages. Comparative transcriptional profiling of unstimulated and M1(LPS + IFN-γ) macrophages derived from wild-type (WT) and miR-155 knockout (KO) mice revealed that half (approximately 650 genes) of the signature we previously identified in WT M1(LPS + IFN-γ) macrophages was dependent on miR-155. Real-Time PCR of independent datasets confirmed that miR-155 contributed to suppression of its validated mRNA targets Inpp5d, Tspan14, Ptprj and Mafb and induction of Inos, Il1b, Tnfa, Il6 and Il12. Overall, these data indicate that miR-155 plays an essential role in driving the inflammatory phenotype of M1(LPS+ IFN-γ) macrophages.
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46
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Agustinho DP, de Oliveira MA, Tavares AH, Derengowski L, Stolz V, Guilhelmelli F, Mortari MR, Kuchler K, Silva-Pereira I. Dectin-1 is required for miR155 upregulation in murine macrophages in response to Candida albicans. Virulence 2016; 8:41-52. [PMID: 27294852 DOI: 10.1080/21505594.2016.1200215] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
The commensal fungal pathogen Candida albicans is a leading cause of lethal systemic infections in immunocompromised patients. One of the main mechanisms of host immune evasion and virulence by this pathogen is the switch from yeast form to hyphal growth morphologies. Micro RNAs (miRNAs), a small regulatory non-coding RNA, has been identified as an important part of the immune response to a wide variety of pathogens. In general, miRNAs act by modulating the intensity of inflammatory responses. miRNAs act by base-paring binding to specific sequences of target mRNAs, generally causing their silencing through mRNA degradation or translational repression. To study the impact of C. albicans cell morphology upon host miRNA expression, we investigated the differential modulation of 9 different immune response-related miRNAs in primary murine bone marrow-derived macrophages (BMDMs) exposed to either yeasts or hyphal forms of Candida albicans. Here, we show that the different growth morphologies induce distinct miRNA expression patterns in BMDMs. Interestingly, our data suggest that the C-Type lectin receptor Dectin-1 is a major PRR that orchestrates miR155 upregulation in a Syk-dependent manner. Our results suggest that PRR-mediating signaling events are key drivers of miRNA-mediated gene regulation during fungal pathogenesis.
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Affiliation(s)
- Daniel Paiva Agustinho
- a Departamento de Biologia Celular , Laboratório de Biologia Molecular, Universidade de Brasília , Brasília , DF , Brasil
| | - Marco Antônio de Oliveira
- a Departamento de Biologia Celular , Laboratório de Biologia Molecular, Universidade de Brasília , Brasília , DF , Brasil
| | - Aldo Henrique Tavares
- b Departamento de Biologia Celular , Laboratório de Imunologia Aplicada, Instituto de Biologia, Universidade de Brasília , Brasília , DF , Brasil
| | - Lorena Derengowski
- a Departamento de Biologia Celular , Laboratório de Biologia Molecular, Universidade de Brasília , Brasília , DF , Brasil
| | - Valentina Stolz
- c Department of Molecular Genetics , Max F. Perutz Laboratories, Medical University of Vienna , Vienna , Austria
| | - Fernanda Guilhelmelli
- a Departamento de Biologia Celular , Laboratório de Biologia Molecular, Universidade de Brasília , Brasília , DF , Brasil
| | - Márcia Renata Mortari
- d Departamento de Ciências Fisiológicas , Laboratório de Neurofarmacologia, Universidade de Brasília , Brasília , DF , Brasil
| | - Karl Kuchler
- c Department of Molecular Genetics , Max F. Perutz Laboratories, Medical University of Vienna , Vienna , Austria
| | - Ildinete Silva-Pereira
- a Departamento de Biologia Celular , Laboratório de Biologia Molecular, Universidade de Brasília , Brasília , DF , Brasil
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47
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Yin S, Li M, Rao X, Yao X, Zhong Q, Wang M, Wang J, Peng Y, Tang J, Hu F, Zhao Y. Subtilisin-like protease-1 secreted through type IV secretion system contributes to high virulence of Streptococcus suis 2. Sci Rep 2016; 6:27369. [PMID: 27270879 PMCID: PMC4897608 DOI: 10.1038/srep27369] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2015] [Accepted: 05/18/2016] [Indexed: 11/24/2022] Open
Abstract
Streptococcus suis serotype 2 is an emerging zoonotic pathogen that triggered two outbreaks of streptococcal toxic shock syndrome (STSS) in China. Our previous research demonstrated that a type IV secretion system (T4SS) harbored in the 89K pathogenicity island contributes to the pathogenicity of S. suis 2. In the present study, a shotgun proteomics approach was employed to identify the effectors secreted by T4SS in S. suis 2, and surface-associated subtilisin-like protease-1 (SspA-1) was identified as a potential virulence effector. Western blot analysis and pull-down assay revealed that SspA-1 secretion depends on T4SS. Knockout mutations affecting sspA-1 attenuated S. suis 2 and impaired the pathogen’s ability to trigger inflammatory response in mice. And purified SspA-1 induced the secretion of IL-6, TNF-α, and IL-12p70 in THP-1 cells directly. SspA-1 is the first T4SS virulence effector reported in Gram-positive bacteria. Overall, these findings allow us to gain further insights into the pathogenesis of T4SS and STSS.
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Affiliation(s)
- Supeng Yin
- Department of Microbiology, Third Military Medical University, Chongqing, China
| | - Ming Li
- Department of Microbiology, Third Military Medical University, Chongqing, China
| | - Xiancai Rao
- Department of Microbiology, Third Military Medical University, Chongqing, China
| | - Xinyue Yao
- Department of Microbiology, Third Military Medical University, Chongqing, China
| | - Qiu Zhong
- Department of Microbiology, Third Military Medical University, Chongqing, China
| | - Min Wang
- Department of Microbiology, Third Military Medical University, Chongqing, China
| | - Jing Wang
- Department of Microbiology, Third Military Medical University, Chongqing, China
| | - Yizhi Peng
- Institute of Burn Research, Southwest Hospital, Third Military Medical University, Chongqing, China
| | - Jiaqi Tang
- PLA Research Institute of Clinical Laboratory Medicine, Nanjing general hospital of Nanjing Military command, Nanjing 210002, China
| | - Fuquan Hu
- Department of Microbiology, Third Military Medical University, Chongqing, China
| | - Yan Zhao
- Department of Microbiology, Third Military Medical University, Chongqing, China
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48
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Expression and Function of miR-155 in Diseases of the Gastrointestinal Tract. Int J Mol Sci 2016; 17:ijms17050709. [PMID: 27187359 PMCID: PMC4881531 DOI: 10.3390/ijms17050709] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2016] [Revised: 04/25/2016] [Accepted: 05/03/2016] [Indexed: 12/30/2022] Open
Abstract
MicroRNAs (miRNAs) are a type of small noncoding RNA that can regulate the expression of target genes under physiological and pathophysiological conditions. miR-155 is a multifunctional miRNA with inflammation-related and oncogenic roles. In particular, the dysregulation of miR-155 has been strongly implicated in Helicobacter pylori-related gastric disease, inflammatory bowel disease, and colorectal cancer in addition to being involved in molecular changes of important targets and signaling pathways. This review focuses on the expression and function of miR-155 during inflammation and carcinogenesis and its potential use as an effective therapeutic target for certain gastrointestinal diseases.
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49
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Zha H, Sun H, Li X, Duan L, Li A, Gu Y, Zeng Z, Zhao J, Xie J, Yuan S, Li H, Zhou L. S100A8 facilitates the migration of colorectal cancer cells through regulating macrophages in the inflammatory microenvironment. Oncol Rep 2016; 36:279-90. [PMID: 27176480 DOI: 10.3892/or.2016.4790] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2016] [Accepted: 03/16/2016] [Indexed: 11/05/2022] Open
Abstract
Previous studies have shown that S100 calcium-binding protein A8 (S100A8) contributes to the survival and migration of colorectal cancer (CRC) cells. However, whether S100A8 participates in the progression and metastasis of CRC via the regulation of macrophages in the tumor inflammatory microenvironment remains unknown. In this study, phorbol myristate acetate (PMA) was used to induce the differentiation of THP-1 monocytes to macrophages. MTT assay, western blot analysis, immunofluorescence staining, semi-quantitative RT-PCR (semi-PCR), quantitative real-time PCR (qPCR), Gaussia luciferase activity assay and ELISA were performed to analyze the roles and molecular mechanisms of S100A8 in the modulation of macrophages. MTT assay, flow cytometric analysis, Hoechst staining, wound healing and Transwell migration assay were used to test the effect of S100A8 on the viability and migration of CRC cells co-cultured with macrophages in the inflammatory microenvironment. We found that THP-1 monocytes were induced by PMA and differentiated to macrophages. S100A8 activated the NF-κB pathway in the macrophages and promoted the expression of miR-155 and inflammatory cytokines IL-1β and TNF-α in the inflammatory microenvironment mimicked by lipopolysaccharides (LPS). Furthermore, S100A8 contributed to augment the migration but not the viability of the CRC cells co-cultured with the macrophages in the inflammatory microenvironment. Altogether, our study demonstrated that S100A8 facilitated the migration of CRC cells in the inflammatory microenvironment, and the underlying molecular mechanisms may be partially attributed to the overexpression of miR-155, IL-1β and TNF-α through activation of the NF-κB pathway in macrophages.
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Affiliation(s)
- He Zha
- Key Laboratory of Clinical Diagnosis, Ministry of Education, College of Laboratory Medicine, Chongqing Medical University, Chongqing 400016, P.R. China
| | - Hui Sun
- Key Laboratory of Clinical Diagnosis, Ministry of Education, College of Laboratory Medicine, Chongqing Medical University, Chongqing 400016, P.R. China
| | - Xueru Li
- Key Laboratory of Clinical Diagnosis, Ministry of Education, College of Laboratory Medicine, Chongqing Medical University, Chongqing 400016, P.R. China
| | - Liang Duan
- Department of Laboratory Medicine, The Second Affiliated Hospital of Chongqing Medical University, Chongqing 400010, P.R. China
| | - Aifang Li
- Key Laboratory of Clinical Diagnosis, Ministry of Education, College of Laboratory Medicine, Chongqing Medical University, Chongqing 400016, P.R. China
| | - Yue Gu
- Key Laboratory of Clinical Diagnosis, Ministry of Education, College of Laboratory Medicine, Chongqing Medical University, Chongqing 400016, P.R. China
| | - Zongyue Zeng
- Key Laboratory of Clinical Diagnosis, Ministry of Education, College of Laboratory Medicine, Chongqing Medical University, Chongqing 400016, P.R. China
| | - Jiali Zhao
- Key Laboratory of Clinical Diagnosis, Ministry of Education, College of Laboratory Medicine, Chongqing Medical University, Chongqing 400016, P.R. China
| | - Jiaqing Xie
- Key Laboratory of Clinical Diagnosis, Ministry of Education, College of Laboratory Medicine, Chongqing Medical University, Chongqing 400016, P.R. China
| | - Shimei Yuan
- Key Laboratory of Clinical Diagnosis, Ministry of Education, College of Laboratory Medicine, Chongqing Medical University, Chongqing 400016, P.R. China
| | - Huan Li
- Key Laboratory of Clinical Diagnosis, Ministry of Education, College of Laboratory Medicine, Chongqing Medical University, Chongqing 400016, P.R. China
| | - Lan Zhou
- Key Laboratory of Clinical Diagnosis, Ministry of Education, College of Laboratory Medicine, Chongqing Medical University, Chongqing 400016, P.R. China
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Messina A, Langlet F, Chachlaki K, Roa J, Rasika S, Jouy N, Gallet S, Gaytan F, Parkash J, Tena-Sempere M, Giacobini P, Prevot V. A microRNA switch regulates the rise in hypothalamic GnRH production before puberty. Nat Neurosci 2016; 19:835-44. [DOI: 10.1038/nn.4298] [Citation(s) in RCA: 140] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2016] [Accepted: 04/01/2016] [Indexed: 12/12/2022]
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