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Garrett-Sinha LA. An update on the roles of transcription factor Ets1 in autoimmune diseases. WIREs Mech Dis 2023; 15:e1627. [PMID: 37565573 PMCID: PMC10842644 DOI: 10.1002/wsbm.1627] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2023] [Revised: 07/19/2023] [Accepted: 07/20/2023] [Indexed: 08/12/2023]
Abstract
Transcription factors are crucial to regulate gene expression in immune cells and in other cell types. In lymphocytes, there are a large number of different transcription factors that are known to contribute to cell differentiation and the balance between quiescence and activation. One such transcription factor is E26 oncogene homolog 1 (Ets1). Ets1 expression is high in quiescent B and T lymphocytes and its levels are decreased upon activation. The human ETS1 gene has been identified as a susceptibility locus for many autoimmune and inflammatory diseases. In accord with this, gene knockout of Ets1 in mice leads to development of a lupus-like autoimmune disease, with enhanced activation and differentiation of both B cells and T cells. Prior reviews have summarized functional roles for Ets1 based on studies of Ets1 knockout mice. In recent years, numerous additional studies have been published that further validate ETS1 as a susceptibility locus for human diseases where immune dysregulation plays a causative role. In this update, new information that further links Ets1 to human autoimmune diseases is organized and collated to serve as a resource. This update also describes recent studies that seek to understand molecularly how Ets1 regulates immune cell activation, either using human cells and tissues or mouse models. This resource is expected to be useful to investigators seeking to understand how Ets1 may regulate the human immune response, particularly in terms of its roles in autoimmunity and inflammation. This article is categorized under: Immune System Diseases > Genetics/Genomics/Epigenetics Immune System Diseases > Molecular and Cellular Physiology.
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Affiliation(s)
- Lee Ann Garrett-Sinha
- Department of Biochemistry, Jacobs School of Medicine and Biomedical Sciences, State University of New York, Buffalo, New York, USA
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Zheng HL, Sun SY, Jin T, Zhang M, Zeng Y, Liu Q, Yang K, Wei R, Pan Z, Lin F. Transcription factor ETS proto-oncogene 1 contributes to neuropathic pain by regulating histone deacetylase 1 in primary afferent neurons. Mol Pain 2023; 19:17448069231152125. [PMID: 36604795 PMCID: PMC9909074 DOI: 10.1177/17448069231152125] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Revised: 01/04/2023] [Accepted: 01/04/2023] [Indexed: 01/07/2023] Open
Abstract
Nerve injury can induce aberrant changes in ion channels, enzymes, and cytokines/chemokines in the dorsal root ganglia (DRGs); these changes are due to or at least partly governed by transcription factors that contribute to the genesis of neuropathic pain. However, the involvement of transcription factors in neuropathic pain is poorly understood. In this study, we report that transcription factor (TF) ETS proto-oncogene 1 (ETS1) is required for the initiation and development of neuropathic pain. Sciatic nerve chronic constrictive injury (CCI, a clinical neuropathic pain model) increases ETS1 expression in the injured male mouse DRG. Blocking this upregulation alleviated CCI-induced mechanical allodynia and thermal hyperalgesia, with no apparent effect on locomotor function. Mimicking this upregulation results in the genesis of nociception hypersensitivity; mechanistically, nerve injury-induced ETS1 upregulation promotes the expression of histone deacetylase 1 (HDAC1, a key initiator of pain) via enhancing its binding activity to the HDAC1 promotor, leading to the elevation of spinal central sensitization, as evidenced by increased expression of p-ERK1/2 and GFAP in the dorsal spinal horn. It appears that the ETS1/HDAC1 axis in DRG may have a critical role in the development and maintenance of neuropathic pain, and ETS1 is a potential therapeutic target in neuropathic pain.
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Affiliation(s)
- Hong-Li Zheng
- Graduate School, Wannan Medical College, Wuhu, China
- Department of Pain, Shanghai Tenth People’s Hospital, Tongji University, Shanghai, China
| | - Shi-Yu Sun
- Department of Pain, Shanghai Tenth People’s Hospital, Tongji University, Shanghai, China
| | - Tong Jin
- Department of Pain, Shanghai Tenth People’s Hospital, Tongji University, Shanghai, China
| | - Ming Zhang
- Jiangsu Province Key Laboratory of Anesthesiology, Jiangsu Province Key Laboratory of Anesthesia and Analgesia Application Technology, NMPA Key Laboratory for Research and Evaluation of Narcotic and Psychotropic Drugs, Xuzhou Medical University, Xuzhou, China
| | - Ying Zeng
- Jiangsu Province Key Laboratory of Anesthesiology, Jiangsu Province Key Laboratory of Anesthesia and Analgesia Application Technology, NMPA Key Laboratory for Research and Evaluation of Narcotic and Psychotropic Drugs, Xuzhou Medical University, Xuzhou, China
| | - Qiaoqiao Liu
- Jiangsu Province Key Laboratory of Anesthesiology, Jiangsu Province Key Laboratory of Anesthesia and Analgesia Application Technology, NMPA Key Laboratory for Research and Evaluation of Narcotic and Psychotropic Drugs, Xuzhou Medical University, Xuzhou, China
| | - Kehui Yang
- Jiangsu Province Key Laboratory of Anesthesiology, Jiangsu Province Key Laboratory of Anesthesia and Analgesia Application Technology, NMPA Key Laboratory for Research and Evaluation of Narcotic and Psychotropic Drugs, Xuzhou Medical University, Xuzhou, China
| | - Runa Wei
- Jiangsu Province Key Laboratory of Anesthesiology, Jiangsu Province Key Laboratory of Anesthesia and Analgesia Application Technology, NMPA Key Laboratory for Research and Evaluation of Narcotic and Psychotropic Drugs, Xuzhou Medical University, Xuzhou, China
| | - Zhiqiang Pan
- Jiangsu Province Key Laboratory of Anesthesiology, Jiangsu Province Key Laboratory of Anesthesia and Analgesia Application Technology, NMPA Key Laboratory for Research and Evaluation of Narcotic and Psychotropic Drugs, Xuzhou Medical University, Xuzhou, China
| | - Fuqing Lin
- Graduate School, Wannan Medical College, Wuhu, China
- Department of Pain, Shanghai Tenth People’s Hospital, Tongji University, Shanghai, China
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Suzuki E, Zhang XK, Yashiro-Furuya M, Asano T, Kanno T, Kobayashi H, Migita K, Ohira H. The expression of Ets-1 and Fli-1 is associated with interferon-inducible genes in peripheral blood mononuclear cells from Japanese patients with systemic lupus erythematosus. Medicine (Baltimore) 2022; 101:e31522. [PMID: 36397345 PMCID: PMC9666161 DOI: 10.1097/md.0000000000031522] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Transcription factors E26 transformation-specific-1 (Ets-1) and Friend leukemia insertion site-1 (Fli-1) and type I interferon (IFN) have been implicated in systemic lupus erythematosus (SLE). We examined the expression of these genes in peripheral blood mononuclear cells (PBMCs) from Japanese patients with SLE and analyzed their association with SLE. We enrolled 53 Japanese patients with SLE, 42 patients with rheumatoid arthritis (RA), and 30 healthy donors (HDs) (as controls) in this study. PBMCs were collected from all participants, and the expressions of Ets-1, Fli-1, and three interferon-inducible genes (IFIGs) (interferon-inducible protein with tetratricopeptide 1 [IFIT1], interferon-inducible protein 44 [IFI44], and eukaryotic translation initiation factor 2 alpha kinase 2 [EIF2AK2]) were measured using real-time polymerase chain reaction (PCR). The relationships of each molecule with clinical symptoms, laboratory data, and treatments were analyzed. The expression of Ets-1 and Fli-1 was significantly lower in the PBMCs from patients with SLE than that in the PBMCs from patients with RA and HDs. The expression of the three IFIGs was significantly higher in the PBMCs from patients with SLE than that in the PBMCs from patients with RA and HDs. For patients with SLE, significantly positive correlations were found between Ets-1 and three IFIGs; a similar trend was observed between Fli-1 and IFIGs. IFIG expression in the PBMCs was significantly higher in patients with SLE than that in other participants, and the expression of Ets-1 and Fli-1 was positively associated with IFN expression. Therefore, it was suggested that Ets-1 and Fli-1 were associated with the pathophysiology of SLE by regulating the type I IFN pathway.
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Affiliation(s)
- Eiji Suzuki
- Department of Rheumatology, Fukushima Medical University School of Medicine, Fukushima, Japan
- Department of Rheumatology, Ohta-Nishinouchi Hospital, Fukushima, Japan
- * Correspondence: Eiji Suzuki, Department of Rheumatology, Fukushima Medical University, School of Medicine, 1 Hikarigaoka, Fukushima-shi, Fukushima 960-1295, Japan (e-mail: )
| | - Xian K. Zhang
- Division of Rheumatology and Immunology, Department of Medicine, Medical University of South Carolina, Charleston, SC, USA
| | - Makiko Yashiro-Furuya
- Department of Rheumatology, Fukushima Medical University School of Medicine, Fukushima, Japan
| | - Tomoyuki Asano
- Department of Rheumatology, Fukushima Medical University School of Medicine, Fukushima, Japan
| | - Takashi Kanno
- Division of Rheumatology and Immunology, Department of Medicine, Medical University of South Carolina, Charleston, SC, USA
| | - Hiroko Kobayashi
- Department of Rheumatology, Fukushima Medical University School of Medicine, Fukushima, Japan
| | - Kiyoshi Migita
- Department of Rheumatology, Fukushima Medical University School of Medicine, Fukushima, Japan
| | - Hiromasa Ohira
- Department of Gastroenterology, Fukushima Medical University School of Medicine, Fukushima, Japan
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Meyer A, Parmar PJ, Shahrara S. Significance of IL-7 and IL-7R in RA and autoimmunity. Autoimmun Rev 2022; 21:103120. [PMID: 35595051 PMCID: PMC9987213 DOI: 10.1016/j.autrev.2022.103120] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Accepted: 05/15/2022] [Indexed: 11/02/2022]
Abstract
While physiological levels of IL-7 are essential for T cell proliferation, survival and co-stimulation, its escalated concentration has been associated with autoimmune diseases such as Rheumatoid arthritis (RA). Expression of IL-7 and IL-7R in RA monocytes is linked to disease activity score and TNF transcription. TNF stimulation can modulate IL-7 secretion and IL-7R frequency in myeloid cells, however, only IL-7R transcription levels are downregulated in anti-TNF responsive patients. Elevated levels of IL-7 in RA synovial tissue and fluid are involved in attracting RA monocytes into the inflammatory joints and remodeling them into proinflammatory macrophages and mature osteoclasts. Further, IL-7 amplification of RA Th1 cell differentiation and IFNγ secretion, can directly prime myeloid IL-7R expression and thereby exacerbate IL-7-mediated joint inflammatory and erosive imprints. In parallel, IL-7 accentuates joint angiogenesis by expanding the production of proangiogenic factors from RA macrophages and endothelial cells. In preclinical models, blockade of IL-7 or IL-7R can effectively impair joint inflammation, osteoclast formation, and neovascularization primarily by impeding monocyte and endothelial cell infiltration as well as inhibition of pro-inflammatory macrophage and Th1/Th17 cell differentiation. In conclusion, disruption of IL-7/IL-7R signaling can uniquely intercept the crosstalk between RA myeloid and lymphoid cells in their ability to trigger neovascularization.
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Affiliation(s)
- Anja Meyer
- Jesse Brown VA Medical Center, Chicago, IL, USA; Department of Medicine, Division of Rheumatology, the University of Illinois at Chicago, IL, USA
| | - Prashant J Parmar
- Department of Medicine, Division of Rheumatology, the University of Illinois at Chicago, IL, USA
| | - Shiva Shahrara
- Jesse Brown VA Medical Center, Chicago, IL, USA; Department of Medicine, Division of Rheumatology, the University of Illinois at Chicago, IL, USA.
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Catar R, Herse-Naether M, Zhu N, Wagner P, Wischnewski O, Kusch A, Kamhieh-Milz J, Eisenreich A, Rauch U, Hegner B, Heidecke H, Kill A, Riemekasten G, Kleinau G, Scheerer P, Dragun D, Philippe A. Autoantibodies Targeting AT 1- and ET A-Receptors Link Endothelial Proliferation and Coagulation via Ets-1 Transcription Factor. Int J Mol Sci 2021; 23:244. [PMID: 35008670 PMCID: PMC8745726 DOI: 10.3390/ijms23010244] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2021] [Revised: 12/20/2021] [Accepted: 12/23/2021] [Indexed: 12/20/2022] Open
Abstract
Scleroderma renal crisis (SRC) is an acute life-threatening manifestation of systemic sclerosis (SSc) caused by obliterative vasculopathy and thrombotic microangiopathy. Evidence suggests a pathogenic role of immunoglobulin G (IgG) targeting G-protein coupled receptors (GPCR). We therefore dissected SRC-associated vascular obliteration and investigated the specific effects of patient-derived IgG directed against angiotensin II type 1 (AT1R) and endothelin-1 type A receptors (ETAR) on downstream signaling events and endothelial cell proliferation. SRC-IgG triggered endothelial cell proliferation via activation of the mitogen-activated protein kinase (MAPK) pathway and subsequent activation of the E26 transformation-specific-1 transcription factor (Ets-1). Either AT1R or ETAR receptor inhibitors/shRNA abrogated endothelial proliferation, confirming receptor activation and Ets-1 signaling involvement. Binding of Ets-1 to the tissue factor (TF) promoter exclusively induced TF. In addition, TF inhibition prevented endothelial cell proliferation. Thus, our data revealed a thus far unknown link between SRC-IgG-induced intracellular signaling, endothelial cell proliferation and active coagulation in the context of obliterative vasculopathy and SRC. Patients' autoantibodies and their molecular effectors represent new therapeutic targets to address severe vascular complications in SSc.
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Affiliation(s)
- Rusan Catar
- Department of Nephrology and Medical Intensive Care, Charité—Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, 10117 Berlin, Germany; (M.H.-N.); (N.Z.); (P.W.); (O.W.); (A.K.); (B.H.)
- Center for Cardiovascular Research, Charité—Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, 10117 Berlin, Germany
| | - Melanie Herse-Naether
- Department of Nephrology and Medical Intensive Care, Charité—Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, 10117 Berlin, Germany; (M.H.-N.); (N.Z.); (P.W.); (O.W.); (A.K.); (B.H.)
- Center for Cardiovascular Research, Charité—Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, 10117 Berlin, Germany
| | - Nan Zhu
- Department of Nephrology and Medical Intensive Care, Charité—Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, 10117 Berlin, Germany; (M.H.-N.); (N.Z.); (P.W.); (O.W.); (A.K.); (B.H.)
- Shanghai General Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai 200025, China
| | - Philine Wagner
- Department of Nephrology and Medical Intensive Care, Charité—Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, 10117 Berlin, Germany; (M.H.-N.); (N.Z.); (P.W.); (O.W.); (A.K.); (B.H.)
- Center for Cardiovascular Research, Charité—Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, 10117 Berlin, Germany
| | - Oskar Wischnewski
- Department of Nephrology and Medical Intensive Care, Charité—Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, 10117 Berlin, Germany; (M.H.-N.); (N.Z.); (P.W.); (O.W.); (A.K.); (B.H.)
- Center for Cardiovascular Research, Charité—Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, 10117 Berlin, Germany
| | - Angelika Kusch
- Department of Nephrology and Medical Intensive Care, Charité—Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, 10117 Berlin, Germany; (M.H.-N.); (N.Z.); (P.W.); (O.W.); (A.K.); (B.H.)
- Center for Cardiovascular Research, Charité—Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, 10117 Berlin, Germany
- Berlin Institute of Health, Charité—Universitätsmedizin Berlin, BIH Biomedical Innovation Academy, 10117 Berlin, Germany
| | - Julian Kamhieh-Milz
- Department of Transfusion Medicine, Charité—Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, 10117 Berlin, Germany;
| | - Andreas Eisenreich
- Department of Cardiology, Charité—Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, 10117 Berlin, Germany; (A.E.); (U.R.)
| | - Ursula Rauch
- Department of Cardiology, Charité—Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, 10117 Berlin, Germany; (A.E.); (U.R.)
| | - Björn Hegner
- Department of Nephrology and Medical Intensive Care, Charité—Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, 10117 Berlin, Germany; (M.H.-N.); (N.Z.); (P.W.); (O.W.); (A.K.); (B.H.)
- Center for Cardiovascular Research, Charité—Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, 10117 Berlin, Germany
- Vitanas Klinik für Geriatrie, 13435 Berlin, Germany
| | | | - Angela Kill
- Deutsches Rheuma-Forschungszentrum (DRFZ), A. Leibniz Institute, 10117 Berlin, Germany; (A.K.); (G.R.)
- Department of Rheumatology and Clinical Immunology, CCM, Charité—Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, 10117 Berlin, Germany
| | - Gabriela Riemekasten
- Deutsches Rheuma-Forschungszentrum (DRFZ), A. Leibniz Institute, 10117 Berlin, Germany; (A.K.); (G.R.)
- Department of Rheumatology and Clinical Immunology, CCM, Charité—Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, 10117 Berlin, Germany
- Priority Area Asthma & Allergy, Research Center Borstel, Airway Research Center North (ARCN), Members of the German Center for Lung Research (DZL), 23845 Borstel, Germany
| | - Gunnar Kleinau
- Group Protein X-ray Crystallography and Signal Transduction, Institute of Medical Physics and Biophysics, Charité—Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, 10117 Berlin, Germany; (G.K.); (P.S.)
| | - Patrick Scheerer
- Group Protein X-ray Crystallography and Signal Transduction, Institute of Medical Physics and Biophysics, Charité—Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, 10117 Berlin, Germany; (G.K.); (P.S.)
- DZHK (Deutsches Zentrum für Herz-Kreislauf Forschung), Partner Site Berlin, 13353 Berlin, Germany
| | - Duska Dragun
- Department of Nephrology and Medical Intensive Care, Charité—Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, 10117 Berlin, Germany; (M.H.-N.); (N.Z.); (P.W.); (O.W.); (A.K.); (B.H.)
- Center for Cardiovascular Research, Charité—Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, 10117 Berlin, Germany
- Berlin Institute of Health, Charité—Universitätsmedizin Berlin, BIH Biomedical Innovation Academy, 10117 Berlin, Germany
| | - Aurelie Philippe
- Department of Nephrology and Medical Intensive Care, Charité—Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, 10117 Berlin, Germany; (M.H.-N.); (N.Z.); (P.W.); (O.W.); (A.K.); (B.H.)
- Center for Cardiovascular Research, Charité—Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, 10117 Berlin, Germany
- Berlin Institute of Health, Charité—Universitätsmedizin Berlin, BIH Biomedical Innovation Academy, 10117 Berlin, Germany
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Etchegaray-Morales I, Jiménez-Herrera EA, Mendoza-Pinto C, Rojas-Villarraga A, Macías-Díaz S, Osorio-Peña ÁD, Munguía-Realpozo P, García-Carrasco M. Helicobacter pylori and its association with autoimmune diseases: systemic lupus erythematosus, rheumatoid arthritis and Sjögren syndrome. J Transl Autoimmun 2021; 4:100135. [PMID: 34825158 PMCID: PMC8605081 DOI: 10.1016/j.jtauto.2021.100135] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2021] [Accepted: 11/12/2021] [Indexed: 02/07/2023] Open
Abstract
Helicobacter pylori (H. pylori) is a gram-negative bacterium that adapts to the gastric mucosa and provokes symptoms associated with gastritis. Chronic H. pylori infection in patients with a genetic predisposition can trigger autoimmune diseases due to the immune interaction of cellular and humoral responses. Infections are a triggering factor for systemic lupus erythematosus (SLE), rheumatoid arthritis (RA), and Sjögren syndrome (SS), although the association between H. pylori and these diseases is unclear. Therefore, we reviewed this interaction and its clinical importance.
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Affiliation(s)
- Ivet Etchegaray-Morales
- Department of Rheumatology, Medicine School, Meritorious Autonomous University of Puebla, 13 Sur 2702, 72420, Puebla, Mexico
| | | | - Claudia Mendoza-Pinto
- Department of Rheumatology, Medicine School, Meritorious Autonomous University of Puebla, 13 Sur 2702, 72420, Puebla, Mexico
- Systemic Autoimmune Diseases Research, Unit of Specialties, Hospital UMAE, Mexican Social Security Institute, 2 Norte 2004, 72000, Puebla, Mexico
| | - Adriana Rojas-Villarraga
- Research Institute, Fundación Universitaria De Ciencias De La Salud, University of Health Sciences, Cra. 19 N 8a-32, Bogota, Colombia
| | - Salvador Macías-Díaz
- Internal Medicine Service, Hospital General de Zona N°1, Instituto Mexicano del Seguro Social, Avenida Francisco I. Madero 407, 42070, Hidalgo, Mexico
- Department of Medical Oncology. Medicine School. Meritorious Autonomous University of Puebla, 13 Sur 2702, 72420, Puebla, Mexico
| | - Ángel David Osorio-Peña
- Department of Rheumatology, Medicine School, Meritorious Autonomous University of Puebla, 13 Sur 2702, 72420, Puebla, Mexico
| | - Pamela Munguía-Realpozo
- Department of Rheumatology, Medicine School, Meritorious Autonomous University of Puebla, 13 Sur 2702, 72420, Puebla, Mexico
| | - Mario García-Carrasco
- Department of Rheumatology, Medicine School, Meritorious Autonomous University of Puebla, 13 Sur 2702, 72420, Puebla, Mexico
- Corresponding author.
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7
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Teng Y, Cang B, Mao F, Chen W, Cheng P, Peng L, Luo P, Lu D, You N, Zou Q, Zhuang Y. Expression of ETS1 in gastric epithelial cells positively regulate inflammatory response in Helicobacter pylori-associated gastritis. Cell Death Dis 2020; 11:498. [PMID: 32612120 PMCID: PMC7329872 DOI: 10.1038/s41419-020-2705-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2019] [Revised: 06/04/2020] [Accepted: 06/19/2020] [Indexed: 11/09/2022]
Abstract
Gastric epithelial cells (GECs) provide the first point of contact of the host by Helicobacter pylori (H. pylori), and the interaction between H. pylori and GECs plays a critical role in H. pylori-associated diseases. Aberrant expression of transcription factors (TFs) contributes to the pathogenesis of inflammatory disorders, including H. pylori-associated gastritis. ETS (E26 transformation specific) transcription factor family is one of the largest families of evolutionarily conserved TFs, regulating critical functions during cell homeostasis. We screened ETS family gene expression in H. pylori-infected mouse and human GECs and found that ETS1 (ETS proto-oncogene 1, transcription factor) expression was highly affected by H. pylori infection. Then, we reported that ETS1 was induced in GECs by H. pylori via cagA activated NF-κB pathway. Notably, we demonstrated that proinflammatory cytokines IL-1β and TNFα have synergistic effects on ETS1 expression during H. pylori infection in an NF-κB-pathway-dependent manner. RNA-seq assay and Gene-ontology functional analysis revealed that ETS1 positively regulate inflammatory response during H. pylori infection. Increased ETS1 is also detected in the gastric mucosa of mice and patients with H. pylori infection. Collectively, these data showed that ETS1 may play an important role in the pathogenesis of H. pylori-associated gastritis.
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Affiliation(s)
- Yongsheng Teng
- National Engineering Research Centre of Immunological Products, Department of Microbiology and Biochemical Pharmacy, College of Pharmacy and Laboratory Medicine, Third Military Medical University, Chongqing, China
| | | | - Fangyuan Mao
- National Engineering Research Centre of Immunological Products, Department of Microbiology and Biochemical Pharmacy, College of Pharmacy and Laboratory Medicine, Third Military Medical University, Chongqing, China
| | - Weisan Chen
- La Trobe Institute of Molecular Science, La Trobe University, Bundoora, VIC, 3086, Australia
| | - Ping Cheng
- National Engineering Research Centre of Immunological Products, Department of Microbiology and Biochemical Pharmacy, College of Pharmacy and Laboratory Medicine, Third Military Medical University, Chongqing, China
| | - Liusheng Peng
- National Engineering Research Centre of Immunological Products, Department of Microbiology and Biochemical Pharmacy, College of Pharmacy and Laboratory Medicine, Third Military Medical University, Chongqing, China
| | - Ping Luo
- National Engineering Research Centre of Immunological Products, Department of Microbiology and Biochemical Pharmacy, College of Pharmacy and Laboratory Medicine, Third Military Medical University, Chongqing, China
| | - Dongshui Lu
- National Engineering Research Centre of Immunological Products, Department of Microbiology and Biochemical Pharmacy, College of Pharmacy and Laboratory Medicine, Third Military Medical University, Chongqing, China
| | - Nan You
- Department of Hepatobiliary Surgery, Xinqiao Hospital, Third Military Medical University, Chongqing, China.
| | - Quanming Zou
- National Engineering Research Centre of Immunological Products, Department of Microbiology and Biochemical Pharmacy, College of Pharmacy and Laboratory Medicine, Third Military Medical University, Chongqing, China.
| | - Yuan Zhuang
- National Engineering Research Centre of Immunological Products, Department of Microbiology and Biochemical Pharmacy, College of Pharmacy and Laboratory Medicine, Third Military Medical University, Chongqing, China.
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8
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Miraldi ER, Pokrovskii M, Watters A, Castro DM, De Veaux N, Hall JA, Lee JY, Ciofani M, Madar A, Carriero N, Littman DR, Bonneau R. Leveraging chromatin accessibility for transcriptional regulatory network inference in T Helper 17 Cells. Genome Res 2019; 29:449-463. [PMID: 30696696 PMCID: PMC6396413 DOI: 10.1101/gr.238253.118] [Citation(s) in RCA: 60] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2018] [Accepted: 01/15/2019] [Indexed: 12/13/2022]
Abstract
Transcriptional regulatory networks (TRNs) provide insight into cellular behavior by describing interactions between transcription factors (TFs) and their gene targets. The assay for transposase-accessible chromatin (ATAC)–seq, coupled with TF motif analysis, provides indirect evidence of chromatin binding for hundreds of TFs genome-wide. Here, we propose methods for TRN inference in a mammalian setting, using ATAC-seq data to improve gene expression modeling. We test our methods in the context of T Helper Cell Type 17 (Th17) differentiation, generating new ATAC-seq data to complement existing Th17 genomic resources. In this resource-rich mammalian setting, our extensive benchmarking provides quantitative, genome-scale evaluation of TRN inference, combining ATAC-seq and RNA-seq data. We refine and extend our previous Th17 TRN, using our new TRN inference methods to integrate all Th17 data (gene expression, ATAC-seq, TF knockouts, and ChIP-seq). We highlight newly discovered roles for individual TFs and groups of TFs (“TF–TF modules”) in Th17 gene regulation. Given the popularity of ATAC-seq, which provides high-resolution with low sample input requirements, we anticipate that our methods will improve TRN inference in new mammalian systems, especially in vivo, for cells directly from humans and animal models.
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Affiliation(s)
- Emily R Miraldi
- Divisions of Immunobiology and Biomedical Informatics, Cincinnati Children's Hospital, Cincinnati, Ohio 45229, USA.,Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio 45257, USA
| | - Maria Pokrovskii
- Molecular Pathogenesis Program, The Kimmel Center for Biology and Medicine of the Skirball Institute, New York, New York 10016, USA
| | - Aaron Watters
- Center for Computational Biology, Flatiron Institute, New York, New York 10010, USA
| | - Dayanne M Castro
- Department of Biology, New York University, New York, New York 10012, USA
| | - Nicholas De Veaux
- Center for Computational Biology, Flatiron Institute, New York, New York 10010, USA
| | - Jason A Hall
- Molecular Pathogenesis Program, The Kimmel Center for Biology and Medicine of the Skirball Institute, New York, New York 10016, USA
| | - June-Yong Lee
- Molecular Pathogenesis Program, The Kimmel Center for Biology and Medicine of the Skirball Institute, New York, New York 10016, USA
| | - Maria Ciofani
- Department of Immunology, Duke University School of Medicine, Durham, North Carolina 27710, USA
| | - Aviv Madar
- Department of Biology, New York University, New York, New York 10012, USA
| | - Nick Carriero
- Center for Computational Biology, Flatiron Institute, New York, New York 10010, USA
| | - Dan R Littman
- Molecular Pathogenesis Program, The Kimmel Center for Biology and Medicine of the Skirball Institute, New York, New York 10016, USA.,The Howard Hughes Medical Institute
| | - Richard Bonneau
- Center for Computational Biology, Flatiron Institute, New York, New York 10010, USA.,Department of Biology, New York University, New York, New York 10012, USA.,Center for Data Science, New York University, New York, New York 10010, USA
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9
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Xia Y, Tao JH, Fang X, Xiang N, Dai XJ, Jin L, Li XM, Wang YP, Li XP. MicroRNA-326 Upregulates B Cell Activity and Autoantibody Production in Lupus Disease of MRL/lpr Mice. MOLECULAR THERAPY-NUCLEIC ACIDS 2018; 11:284-291. [PMID: 29858063 PMCID: PMC5992445 DOI: 10.1016/j.omtn.2018.02.010] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/27/2017] [Revised: 02/26/2018] [Accepted: 02/27/2018] [Indexed: 11/19/2022]
Abstract
B cells are recognized as key participants in various autoimmune diseases, including systemic lupus erythematosus (SLE). Although sets of transcription factors and cytokines are known to regulate B cell differentiation, the roles of microRNAs are poorly understood. Our previous study proved that microRNA-326 (miR-326) was markedly upregulated in SLE patients; however, the biological function of miR-326 during SLE pathogenesis remained unknown. In this study, we found that miR-326 overexpression in MRL/lpr mice led to B cell hyperactivity and severe SLE. Moreover, E26 transformation-specific-1 (Ets-1), a negative regulator of B cell differentiation, was identified as a target of miR-326. Therefore, a novel mechanism has been found in which the elevated miR-326 in B cells of SLE promotes plasmablast development and antibody production through downregulation of Ets-1.
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Affiliation(s)
- Yuan Xia
- Department of Rheumatology and Immunology, Anhui Provincial Hospital Affiliated with Anhui Medical University, Hefei 230001, China
| | - Jin-Hui Tao
- Department of Rheumatology and Immunology, Anhui Provincial Hospital Affiliated with Anhui Medical University, Hefei 230001, China
| | - Xuan Fang
- Department of Rheumatology and Immunology, Anhui Provincial Hospital Affiliated with Anhui Medical University, Hefei 230001, China
| | - Nan Xiang
- Department of Rheumatology and Immunology, Anhui Provincial Hospital Affiliated with Anhui Medical University, Hefei 230001, China
| | - Xiao-Juan Dai
- Department of Rheumatology and Immunology, Anhui Provincial Hospital Affiliated with Anhui Medical University, Hefei 230001, China
| | - Li Jin
- Department of Rheumatology and Immunology, Anhui Provincial Hospital Affiliated with Anhui Medical University, Hefei 230001, China
| | - Xiao-Mei Li
- Department of Rheumatology and Immunology, Anhui Provincial Hospital Affiliated with Anhui Medical University, Hefei 230001, China
| | - Yi-Ping Wang
- Centre for Transplantation and Renal Research, Westmead Institute for Medical Research, The University of Sydney, Sydney, NSW, Australia
| | - Xiang-Pei Li
- Department of Rheumatology and Immunology, Anhui Provincial Hospital Affiliated with Anhui Medical University, Hefei 230001, China.
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10
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Zhao N, Zou H, Qin J, Fan C, Liu Y, Wang S, Shan Z, Teng W, Li Y. MicroRNA-326 contributes to autoimmune thyroiditis by targeting the Ets-1 protein. Endocrine 2018; 59:120-129. [PMID: 29181619 DOI: 10.1007/s12020-017-1465-4] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/21/2017] [Accepted: 10/26/2017] [Indexed: 10/18/2022]
Abstract
PURPOSE MicroRNA-326 (miR-326), as a member of the microRNA (miRNA) family, which includes endogenous single-stranded, conserved, noncoding small RNAs, has been reported to play important roles in autoimmune diseases such as multiple sclerosis and systemic lupus erythematosus. However, few studies of the role of miR-326 in autoimmune thyroiditis (AIT) have been published. Here, we explored the roles of miR-326 and the involved pathway in iodine-induced AIT. METHODS NOD.H-2h4 mice, which are a model of human AIT, were randomly divided into a normal water control group and a high-iodine group. Mice in the high-iodine group were administered 0.05% NaI (~1000 times the normal daily iodine intake), and mice in the control group received sterile water. Furthermore, we evaluated small interfering RNA (siRNA) interference in spleen mononuclear cell experiments in vitro. RESULTS In this study, we found that Th17 cells were significantly increased with a high expression of miR-326 in an iodine-induced thyroiditis NOD.H-2h4 mouse model. In addition, the expression of Ets-1 protein, a negative regulator of Th17 differentiation, was significantly decreased. Intriguingly, our analysis showed that Ets-1 protein expression was negatively correlated with miR-326 levels in AIT mice (r = -0.814, p < 0.01). Our study indicated that miR-326 inhibited Ets-1 protein expression and promoted the differentiation of Th17 cells during the onset and development of AIT. The addition of a miR-326 inhibitor reversed Th17 cell production and Ets-1 protein expression, supporting this hypothesis. CONCLUSIONS The results of our study suggest that miR-326 may target the Ets-1 protein to contribute to iodide-induced thyroiditis, providing a new theoretical basis for the use of miRNA targeting therapy for the treatment of autoimmune diseases.
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Affiliation(s)
- Na Zhao
- Department of Endocrinology and Metabolism, Institute of Endocrinology, Liaoning Provincial Key Laboratory of Endocrine Diseases, The First Affiliated Hospital of China Medical University, Shenyang, 110001, PR China
| | - Hongjin Zou
- Department of Endocrinology and Metabolism, Institute of Endocrinology, Liaoning Provincial Key Laboratory of Endocrine Diseases, The First Affiliated Hospital of China Medical University, Shenyang, 110001, PR China
| | - Jing Qin
- Department of Endocrinology and Metabolism, Institute of Endocrinology, Liaoning Provincial Key Laboratory of Endocrine Diseases, The First Affiliated Hospital of China Medical University, Shenyang, 110001, PR China
| | - Chenling Fan
- Department of Endocrinology and Metabolism, Institute of Endocrinology, Liaoning Provincial Key Laboratory of Endocrine Diseases, The First Affiliated Hospital of China Medical University, Shenyang, 110001, PR China
| | - Yongping Liu
- Department of Endocrinology and Metabolism, Institute of Endocrinology, Liaoning Provincial Key Laboratory of Endocrine Diseases, The First Affiliated Hospital of China Medical University, Shenyang, 110001, PR China
| | - Shuo Wang
- Department of Endocrinology and Metabolism, Institute of Endocrinology, Liaoning Provincial Key Laboratory of Endocrine Diseases, The First Affiliated Hospital of China Medical University, Shenyang, 110001, PR China
| | - Zhongyan Shan
- Department of Endocrinology and Metabolism, Institute of Endocrinology, Liaoning Provincial Key Laboratory of Endocrine Diseases, The First Affiliated Hospital of China Medical University, Shenyang, 110001, PR China
| | - Weiping Teng
- Department of Endocrinology and Metabolism, Institute of Endocrinology, Liaoning Provincial Key Laboratory of Endocrine Diseases, The First Affiliated Hospital of China Medical University, Shenyang, 110001, PR China
| | - Yushu Li
- Department of Endocrinology and Metabolism, Institute of Endocrinology, Liaoning Provincial Key Laboratory of Endocrine Diseases, The First Affiliated Hospital of China Medical University, Shenyang, 110001, PR China.
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11
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Chen S, Wen X, Li L, Li J, Li Y, Wang Q, Yuan H, Zhang F, Li Y. Single nucleotide polymorphisms in the ETS1 gene are associated with idiopathic inflammatory myopathies in a northern Chinese Han population. Sci Rep 2017; 7:13128. [PMID: 29030598 PMCID: PMC5640673 DOI: 10.1038/s41598-017-13385-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2017] [Accepted: 09/22/2017] [Indexed: 11/28/2022] Open
Abstract
Single-nucleotide polymorphisms (SNPs) in the ETS1 gene are associated with several auto-inflammatory diseases. In this study, we determined whether ETS1 gene polymorphisms confer susceptibility to idiopathic inflammatory myopathies (IIMs) in a northern Chinese Han population. DNA samples were collected from 1017 IIM patients: 363 PM cases and 654 DM cases. The results were compared with those of 1280 healthy controls. Five SNPs in the ETS1 region (rs7117932, rs6590330, rs4937362, rs10893845 and rs1128334) were assessed and genotyped using the Sequenom platform. Our data indicated that the rs7117932 alleles and genotypes are associated with DM and IIMs (Pc = 6.0 × 10−3 and Pc = 0.029; Pc = 0.013 and Pc = 0.019, respectively). We found a significantly greater percentage of DM and IIM patients with an A allele of rs6590330 than that in the control population (Pc = 0.033 and Pc = 0.013). Additionally, the rs6590330 genotype was associated with IIMs (Pc = 0.020). The percentages of rs7117932 and rs6590330 SNPs were significantly greater in DM and IIM patients with interstitial lung disease (ILD) (all Pc < 0.05). This is the first study to reveal that ETS1 polymorphisms are associated with IIMs alone and IIMs with ILD in a northern Chinese Han population.
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Affiliation(s)
- Si Chen
- Department of Rheumatology and Clinical Immunology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Beijing, China.,Department of Clinical Laboratory, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| | - Xiaoting Wen
- Department of Rheumatology and Clinical Immunology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Beijing, China
| | - Liubing Li
- Department of Rheumatology and Clinical Immunology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Beijing, China
| | - Jing Li
- Department of Rheumatology and Clinical Immunology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Beijing, China
| | - Yuan Li
- Department of Rheumatology and Clinical Immunology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Beijing, China
| | - Qian Wang
- Department of Rheumatology and Clinical Immunology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Beijing, China
| | - Hui Yuan
- Department of Clinical Laboratory, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| | - Fengchun Zhang
- Department of Rheumatology and Clinical Immunology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Beijing, China
| | - Yongzhe Li
- Department of Rheumatology and Clinical Immunology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Beijing, China.
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12
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Liu M, Gao W, van Velkinburgh JC, Wu Y, Ni B, Tian Y. Role of Ets Proteins in Development, Differentiation, and Function of T-Cell Subsets. Med Res Rev 2015; 36:193-220. [PMID: 26301869 DOI: 10.1002/med.21361] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2014] [Revised: 07/12/2015] [Accepted: 07/23/2015] [Indexed: 12/18/2022]
Abstract
Through positive selection, double-positive cells in the thymus differentiate into CD4(+) or CD8(+) T single-positive cells that subsequently develop into different types of effective T cells, such as T-helper and cytotoxic T lymphocyte cells, that play distinctive roles in the immune system. Development, differentiation, and function of thymocytes and CD4(+) and CD8(+) T cells are controlled by a multitude of secreted and intracellular factors, ranging from cytokine signaling modules to transcription factors and epigenetic modifiers. Members of the E26 transformation specific (Ets) family of transcription factors, in particular, are potent regulators of these CD4(+) or CD8(+) T-cell processes. In this review, we summarize and discuss the functions and underlying mechanisms of the Ets family members that have been characterized as involved in these processes. Ongoing research of these factors is expected to identify practical applications for the Ets family members as novel therapeutic targets for inflammation-related diseases.
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Affiliation(s)
- Mian Liu
- Institute of Immunology, PLA, Third Military Medical University, Chongqing, 400038, P.R. China.,Battalion 10 of Cadet Brigade, Third Military Medical University, Chongqing, 400038, P.R. China
| | - Weiwu Gao
- Institute of Immunology, PLA, Third Military Medical University, Chongqing, 400038, P.R. China
| | | | - Yuzhang Wu
- Institute of Immunology, PLA, Third Military Medical University, Chongqing, 400038, P.R. China
| | - Bing Ni
- Institute of Immunology, PLA, Third Military Medical University, Chongqing, 400038, P.R. China
| | - Yi Tian
- Institute of Immunology, PLA, Third Military Medical University, Chongqing, 400038, P.R. China
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13
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Lu X, Zoller E, Weirauch M, Wu Z, Namjou B, Williams A, Ziegler J, Comeau M, Marion M, Glenn S, Adler A, Shen N, Nath S, Stevens A, Freedman B, Tsao B, Jacob C, Kamen D, Brown E, Gilkeson G, Alarcón G, Reveille J, Anaya JM, James J, Sivils K, Criswell L, Vilá L, Alarcón-Riquelme M, Petri M, Scofield R, Kimberly R, Ramsey-Goldman R, Joo Y, Choi J, Bae SC, Boackle S, Graham D, Vyse T, Guthridge J, Gaffney P, Langefeld C, Kelly J, Greis K, Kaufman K, Harley J, Kottyan L. Lupus Risk Variant Increases pSTAT1 Binding and Decreases ETS1 Expression. Am J Hum Genet 2015; 96:731-9. [PMID: 25865496 DOI: 10.1016/j.ajhg.2015.03.002] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2014] [Accepted: 03/05/2015] [Indexed: 01/19/2023] Open
Abstract
Genetic variants at chromosomal region 11q23.3, near the gene ETS1, have been associated with systemic lupus erythematosus (SLE), or lupus, in independent cohorts of Asian ancestry. Several recent studies have implicated ETS1 as a critical driver of immune cell function and differentiation, and mice deficient in ETS1 develop an SLE-like autoimmunity. We performed a fine-mapping study of 14,551 subjects from multi-ancestral cohorts by starting with genotyped variants and imputing to all common variants spanning ETS1. By constructing genetic models via frequentist and Bayesian association methods, we identified 16 variants that are statistically likely to be causal. We functionally assessed each of these variants on the basis of their likelihood of affecting transcription factor binding, miRNA binding, or chromatin state. Of the four variants that we experimentally examined, only rs6590330 differentially binds lysate from B cells. Using mass spectrometry, we found more binding of the transcription factor signal transducer and activator of transcription 1 (STAT1) to DNA near the risk allele of rs6590330 than near the non-risk allele. Immunoblot analysis and chromatin immunoprecipitation of pSTAT1 in B cells heterozygous for rs6590330 confirmed that the risk allele increased binding to the active form of STAT1. Analysis with expression quantitative trait loci indicated that the risk allele of rs6590330 is associated with decreased ETS1 expression in Han Chinese, but not other ancestral cohorts. We propose a model in which the risk allele of rs6590330 is associated with decreased ETS1 expression and increases SLE risk by enhancing the binding of pSTAT1.
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14
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Berggren O, Alexsson A, Morris DL, Tandre K, Weber G, Vyse TJ, Syvanen AC, Ronnblom L, Eloranta ML. IFN- production by plasmacytoid dendritic cell associations with polymorphisms in gene loci related to autoimmune and inflammatory diseases. Hum Mol Genet 2015; 24:3571-81. [DOI: 10.1093/hmg/ddv095] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2014] [Accepted: 03/12/2015] [Indexed: 12/12/2022] Open
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15
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MicroRNA-146a and Ets-1 gene polymorphisms are associated with pediatric uveitis. PLoS One 2014; 9:e91199. [PMID: 24658012 PMCID: PMC3962359 DOI: 10.1371/journal.pone.0091199] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2013] [Accepted: 02/09/2014] [Indexed: 12/31/2022] Open
Abstract
Background MicroRNA-146a (miR-146a) was a key negative regulator of autoimmunity. V-Ets oncogene homolog 1 (Ets-1) was demonstrated to bind to the miR-146a promoter region and markedly affects miR-146a promoter activity. This study aimed to investigate the association of miR-146a and Ets-1 gene polymorphisms with pediatric uveitis in a Han Chinese population. Methodology/Principal Findings A total of 520 patients and 1204 healthy controls were included in the present study. Five single-nucleotide polymorphisms (SNPs), miR-146a/rs2910164, miR-146a/rs57095329, miR-146a/rs6864584, ets-1/rs1128334 and ets-1/rs10893872 were genotyped using a polymerase chain reaction-restriction fragment length polymorphism assay. The expression of Ets-1 in peripheral blood mononuclear cells from genotyped healthy controls was tested by real-time PCR. Two SNPs (rs2910164 and rs10893872) were associated with pediatric uveitis in this study. The frequencies of the rs2910164 GG genotype and G allele were significantly increased (Pc = 3.11×10−4; Pc = 2.75×10−6) while the CC genotype and C allele were significantly decreased (Pc = 0.001; Pc = 2.75×10−6) in patients compared with normal controls. The frequencies of the rs10893872 CC genotype and C allele were significantly increased (Pc = 3.89×10−4; Pc = 0.01) while the CT genotype and T allele were significantly decreased (Pc = 0.004; Pc = 0.01) in patients compared with normal controls. The SNP rs2910164 GG genotype and G/C allele were also associated with the presence of microvascular leakage as detected by fundus fluorescein angiography in pediatric uveitis (Pc = 0.01; Pc = 0.005, respectively). Ets-1 expression in rs10893872 CC carriers was significantly higher than in CT and TT individuals (Pc = 0.013). There was no association of the other three SNPs with pediatric uveitis. Conclusions This study shows that miR-146a and Ets-1 are both associated with pediatric uveitis in Han Chinese. SNP rs10893872 may affect the genetic predisposition to pediatric uveitis by modulating expression of Ets-1.
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16
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Kim K, Bang SY, Lee HS, Cho SK, Choi CB, Sung YK, Kim TH, Jun JB, Yoo DH, Kang YM, Kim SK, Suh CH, Shim SC, Lee SS, Lee J, Chung WT, Choe JY, Shin HD, Lee JY, Han BG, Nath SK, Eyre S, Bowes J, Pappas DA, Kremer JM, Gonzalez-Gay MA, Rodriguez-Rodriguez L, Ärlestig L, Okada Y, Diogo D, Liao KP, Karlson EW, Raychaudhuri S, Rantapää-Dahlqvist S, Martin J, Klareskog L, Padyukov L, Gregersen PK, Worthington J, Greenberg JD, Plenge RM, Bae SC. High-density genotyping of immune loci in Koreans and Europeans identifies eight new rheumatoid arthritis risk loci. Ann Rheum Dis 2014; 74:e13. [PMID: 24532676 DOI: 10.1136/annrheumdis-2013-204749] [Citation(s) in RCA: 87] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
OBJECTIVE A highly polygenic aetiology and high degree of allele-sharing between ancestries have been well elucidated in genetic studies of rheumatoid arthritis. Recently, the high-density genotyping array Immunochip for immune disease loci identified 14 new rheumatoid arthritis risk loci among individuals of European ancestry. Here, we aimed to identify new rheumatoid arthritis risk loci using Korean-specific Immunochip data. METHODS We analysed Korean rheumatoid arthritis case-control samples using the Immunochip and genome-wide association studies (GWAS) array to search for new risk alleles of rheumatoid arthritis with anticitrullinated peptide antibodies. To increase power, we performed a meta-analysis of Korean data with previously published European Immunochip and GWAS data for a total sample size of 9299 Korean and 45,790 European case-control samples. RESULTS We identified eight new rheumatoid arthritis susceptibility loci (TNFSF4, LBH, EOMES, ETS1-FLI1, COG6, RAD51B, UBASH3A and SYNGR1) that passed a genome-wide significance threshold (p<5×10(-8)), with evidence for three independent risk alleles at 1q25/TNFSF4. The risk alleles from the seven new loci except for the TNFSF4 locus (monomorphic in Koreans), together with risk alleles from previously established RA risk loci, exhibited a high correlation of effect sizes between ancestries. Further, we refined the number of single nucleotide polymorphisms (SNPs) that represent potentially causal variants through a trans-ethnic comparison of densely genotyped SNPs. CONCLUSIONS This study demonstrates the advantage of dense-mapping and trans-ancestral analysis for identification of potentially causal SNPs. In addition, our findings support the importance of T cells in the pathogenesis and the fact of frequent overlap of risk loci among diverse autoimmune diseases.
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Affiliation(s)
- Kwangwoo Kim
- Department of Rheumatology, Hanyang University Hospital for Rheumatic Diseases, Seoul, Republic of Korea Division of Rheumatology, Immunology and Allergy, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA Division of Genetics, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA Program in Medical and Population Genetics, Broad Institute, Cambridge, Massachusetts, USA
| | - So-Young Bang
- Department of Rheumatology, Hanyang University Hospital for Rheumatic Diseases, Seoul, Republic of Korea
| | - Hye-Soon Lee
- Department of Rheumatology, Hanyang University Hospital for Rheumatic Diseases, Seoul, Republic of Korea
| | - Soo-Kyung Cho
- Department of Rheumatology, Hanyang University Hospital for Rheumatic Diseases, Seoul, Republic of Korea
| | - Chan-Bum Choi
- Department of Rheumatology, Hanyang University Hospital for Rheumatic Diseases, Seoul, Republic of Korea
| | - Yoon-Kyoung Sung
- Department of Rheumatology, Hanyang University Hospital for Rheumatic Diseases, Seoul, Republic of Korea
| | - Tae-Hwan Kim
- Department of Rheumatology, Hanyang University Hospital for Rheumatic Diseases, Seoul, Republic of Korea
| | - Jae-Bum Jun
- Department of Rheumatology, Hanyang University Hospital for Rheumatic Diseases, Seoul, Republic of Korea
| | - Dae Hyun Yoo
- Department of Rheumatology, Hanyang University Hospital for Rheumatic Diseases, Seoul, Republic of Korea
| | - Young Mo Kang
- Division of Rheumatology, Department of Internal Medicine, Kyungpook National University School of Medicine, Daegu, Republic of Korea
| | - Seong-Kyu Kim
- Division of Rheumatology, Department of Internal Medicine, Arthritis & Autoimmunity Research Center, Catholic University of Daegu School of Medicine, Daegu, Republic of Korea
| | - Chang-Hee Suh
- Department of Rheumatology, Ajou University School of Medicine, Suwon, Republic of Korea
| | - Seung-Cheol Shim
- Division of Rheumatology, Daejeon Rheumatoid & Degenerative Arthritis Center, Chungnam National University Hospital, Daejeon, Republic of Korea
| | - Shin-Seok Lee
- Division of Rheumatology, Department of Internal Medicine, Chonnam National University Medical School and Hospital, Gwangju, Republic of Korea
| | - Jisoo Lee
- Division of Rheumatology, Department of Internal Medicine, Ewha Womans University School of Medicine, Seoul, Republic of Korea
| | - Won Tae Chung
- Division of Rheumatology, Department of internal medicine, Dong-A University, Busan, Republic of Korea
| | - Jung-Yoon Choe
- Division of Rheumatology, Department of Internal Medicine, Arthritis & Autoimmunity Research Center, Catholic University of Daegu School of Medicine, Daegu, Republic of Korea
| | - Hyoung Doo Shin
- Department of Life Science, Sogang University, Seoul, Republic of Korea
| | - Jong-Young Lee
- Center for Genome Science, Korea National Institute of Health, Osong Health Technology, Chungcheongbuk-do, Republic of Korea
| | - Bok-Ghee Han
- Center for Genome Science, Korea National Institute of Health, Osong Health Technology, Chungcheongbuk-do, Republic of Korea
| | - Swapan K Nath
- Arthritis and Clinical Immunology Research Program, Oklahoma Medical Research Foundation, Oklahoma City, Oklahoma, USA
| | - Steve Eyre
- Arthritis Research UK Epidemiology Unit, University of Manchester, Manchester Academic Health Sciences Centre, Manchester, UK
| | - John Bowes
- Arthritis Research UK Epidemiology Unit, University of Manchester, Manchester Academic Health Sciences Centre, Manchester, UK
| | - Dimitrios A Pappas
- Department of Medicine, Division of Rheumatology, Columbia University, New York, New York, USA
| | | | - Miguel A Gonzalez-Gay
- Department of Rheumatology, Hospital Marques de Valdecilla, IFIMAV, Santander, Spain
| | | | - Lisbeth Ärlestig
- Department of Clinical Medicine/Rheumatoloy, Umeå University, Umeå, Sweden
| | - Yukinori Okada
- Division of Rheumatology, Immunology and Allergy, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA Division of Genetics, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA Program in Medical and Population Genetics, Broad Institute, Cambridge, Massachusetts, USA Department of Human Genetics and Disease Diversity, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan Laboratory for Statistical Analysis, RIKEN Center for Integrative Medical Sciences, Yokohama, Japan
| | - Dorothée Diogo
- Division of Rheumatology, Immunology and Allergy, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA Division of Genetics, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA Program in Medical and Population Genetics, Broad Institute, Cambridge, Massachusetts, USA
| | - Katherine P Liao
- Division of Rheumatology, Immunology and Allergy, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Elizabeth W Karlson
- Division of Rheumatology, Immunology and Allergy, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Soumya Raychaudhuri
- Division of Rheumatology, Immunology and Allergy, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA Division of Genetics, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA Program in Medical and Population Genetics, Broad Institute, Cambridge, Massachusetts, USA Arthritis Research UK Epidemiology Unit, University of Manchester, Manchester Academic Health Sciences Centre, Manchester, UK
| | | | - Javier Martin
- Instituto de Parasitologia y Biomedicina Lopez-Neyra, CSIC, Granada, Spain
| | - Lars Klareskog
- Rheumatology Unit, Department of Medicine, Karolinska Institutet and Karolinska University Hospital Solna, Stockholm, Sweden
| | - Leonid Padyukov
- Rheumatology Unit, Department of Medicine, Karolinska Institutet and Karolinska University Hospital Solna, Stockholm, Sweden
| | - Peter K Gregersen
- The Feinstein Institute for Medical Research, North Shore-Long Island Jewish Health System, Manhasset, New York, USA
| | - Jane Worthington
- Arthritis and Clinical Immunology Research Program, Oklahoma Medical Research Foundation, Oklahoma City, Oklahoma, USA
| | - Jeffrey D Greenberg
- Division of Rheumatology, New York University School of Medicine, New York, New York, USA
| | - Robert M Plenge
- Division of Rheumatology, Immunology and Allergy, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA Division of Genetics, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA Program in Medical and Population Genetics, Broad Institute, Cambridge, Massachusetts, USA
| | - Sang-Cheol Bae
- Department of Rheumatology, Hanyang University Hospital for Rheumatic Diseases, Seoul, Republic of Korea
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Influenza and pneumococcal vaccinations of patients with systemic lupus erythematosus: Current views upon safety and immunogenicity. Autoimmun Rev 2014; 13:75-84. [DOI: 10.1016/j.autrev.2013.07.007] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2013] [Accepted: 07/09/2013] [Indexed: 11/18/2022]
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18
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Analysis of gender differences in genetic risk: association of TNFAIP3 polymorphism with male childhood-onset systemic lupus erythematosus in the Japanese population. PLoS One 2013; 8:e72551. [PMID: 24023622 PMCID: PMC3758304 DOI: 10.1371/journal.pone.0072551] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2013] [Accepted: 07/11/2013] [Indexed: 01/23/2023] Open
Abstract
BACKGROUND Systemic lupus erythematosus (SLE) is a systemic multisystem autoimmune disorder influenced by genetic background and environmental factors. Our aim here was to replicate findings of associations between 7 of the implicated single nucleotide polymorphisms (SNPs) in IRF5, BLK, STAT4, TNFAIP3, SPP1, TNIP1 and ETS1 genes with susceptibility to childhood-onset SLE in the Japanese population. In particular, we focused on gender differences in allelic frequencies. METHODOLOGY/PRINCIPAL FINDINGS The 7 SNPs were genotyped using TaqMan assays in 75 patients with childhood-onset SLE and in 190 healthy controls. The relationship between the cumulative number of risk alleles and SLE manifestations was explored in childhood-onset SLE. Logistic regression was used to test the effect of each polymorphism on susceptibility to SLE, and Wilcoxon rank sum testing was used for comparison of total risk alleles. Data on rs7574865 in the STAT4 gene and rs9138 in SPP1 were replicated for associations with SLE when comparing cases and controls (corrected P values ranging from 0.0043 to 0.027). The rs2230926 allele of TNFAIP3 was associated with susceptibility to SLE in males, but after Bonferroni correction there were no significant associations with any of the other four SNPs in IRF5, BLK, TNIP1 and ETS1 genes. The cumulative number of risk alleles was significantly increased in childhood-onset SLE relative to healthy controls (P = 0.0000041). Male SLE patients had a slightly but significantly higher frequency of the TNFAIP3 (rs2230926G) risk allele than female patients (odds ratio [OR] = 4.05, 95% confidence interval [95%CI] = 1.46-11.2 P<0.05). CONCLUSIONS Associations of polymorphisms in STAT4 and SPP1 with childhood-onset SLE were confirmed in a Japanese population. Although these are preliminary results for a limited number of cases, TNFAIP3 rs2230926G may be an important predictor of disease onset in males. We also replicated findings that the cumulative number of risk alleles was significantly increased in childhood-onset SLE.
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19
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Wen Z, Xu L, Chen X, Xu W, Yin Z, Gao X, Xiong S. Autoantibody induction by DNA-containing immune complexes requires HMGB1 with the TLR2/microRNA-155 pathway. THE JOURNAL OF IMMUNOLOGY 2013; 190:5411-22. [PMID: 23616573 DOI: 10.4049/jimmunol.1203301] [Citation(s) in RCA: 83] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Anti-dsDNA Ab is reported to be the central pathogenic autoantibody involved in systemic lupus erythematosus (SLE) pathogenesis. However, the mechanisms involved in anti-dsDNA Ab production remain unclear. Recent evidence indicated that DNA-containing immune complexes (ICs) in circulation (termed "circulating DNA-containing ICs"), which are one of the hallmarks of SLE, might be involved in autoantibody production. In this study, we explored their potential role in anti-dsDNA Ab production and the underlying mechanisms in patients with SLE. We demonstrated that circulating DNA-containing ICs were able to induce anti-dsDNA Ab. Of note, HMGB1 in circulating DNA-containing ICs was crucial for anti-dsDNA Ab induction. The HMGB1 content of circulating DNA-containing ICs also correlated positively with anti-dsDNA Ab production in patients with SLE. Further, we revealed that the TLR2/MyD88/microRNA-155 (miR-155) pathway was pivotal for HMGB1 to confer anti-dsDNA Ab induction, and Ets-1 was a functional target of miR-155 in the induction of anti-dsDNA Ab by circulating DNA-containing ICs. Finally, we validated the expression of miR-155 and Ets-1 and their correlation with anti-dsDNA Ab production in patients with SLE. To our knowledge, this is the first report of the crucial role of HMGB1 in autoantibody production mediated by the TLR2/MyD88/miR-155/Ets-1 pathway. These findings identify a novel mechanism to account for the persistent production of anti-dsDNA Ab in SLE and a clue for developing a novel therapeutic strategy against SLE.
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Affiliation(s)
- Zhenke Wen
- Institute for Immunobiology, Shanghai Medical College of Fudan University, Shanghai 200032, China
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20
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Li J, Gu L, Zhang H, Liu T, Tian D, Zhou M, Zhou S. Berberine represses DAXX gene transcription and induces cancer cell apoptosis. J Transl Med 2013; 93:354-64. [PMID: 23295648 PMCID: PMC3961588 DOI: 10.1038/labinvest.2012.172] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
Death-domain-associated protein (DAXX) is a multifunctional protein that regulates a wide range of cellular signaling pathways for both cell survival and apoptosis. Regulation of DAXX gene expression remains largely obscure. We recently reported that berberine (BBR), a natural product derived from a plant used in Chinese herbal medicine, downregulates DAXX expression at the transcriptional level. Here, we further investigate the mechanisms underlying the transcriptional suppression of DAXX by BBR. By analyzing and mapping the putative DAXX gene promoter, we identified the core promoter region (from -161 to -1), which contains consensus sequences for the transcriptional factors Sp1 and Ets1. We confirmed that Sp1 and Ets1 bound to the core promoter region of DAXX and stimulated DAXX transcriptional activity. In contrast, BBR bound to the DAXX core promoter region and suppressed its transcriptional activity. Following studies demonstrated a possible mechanism that BBR inhibited the DAXX promoter activity through blocking or disrupting the association of Sp1 or Ets1 and their consensus sequences in the promoter. Downregulation of DAXX by BBR resulted in inhibition of MDM2 and subsequently, activation of p53, leading to cancer cell death. Our results reveal a novel possible mechanism: by competitively binding to the Sp1 and Ets1 consensus sequences, BBR inhibits the transcription of DAXX, thus inducing cancer cell apoptosis through a p53-dependent pathway.
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Affiliation(s)
- Jiansha Li
- Institute of Pathology, Tongji hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Lubing Gu
- Departments of Pediatrics, Aflac Center and Blood Disorders Center, Emory University School of Medicine, Atlanta, GA, USA
| | - Hailong Zhang
- Departments of Pediatrics, Aflac Center and Blood Disorders Center, Emory University School of Medicine, Atlanta, GA, USA
| | - Tao Liu
- Departments of Pediatrics, Aflac Center and Blood Disorders Center, Emory University School of Medicine, Atlanta, GA, USA
| | - Dan Tian
- Departments of Pediatrics, Aflac Center and Blood Disorders Center, Emory University School of Medicine, Atlanta, GA, USA
| | - Muxiang Zhou
- Departments of Pediatrics, Aflac Center and Blood Disorders Center, Emory University School of Medicine, Atlanta, GA, USA
| | - Sheng Zhou
- Institute of Pathology, Tongji hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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Abstract
The mechanisms leading to the onset and perpetuation of systemic and tissue-specific autoimmune diseases are complex, and numerous hypotheses have been proposed or confirmed over the past 12 months. It is particularly of note that the number of articles published during 2011 in the major immunology and autoimmunity journals increased by 3 % compared to the previous year. The present article is dedicated to a brief review of the reported data and, albeit not comprehensive of all articles, is aimed at identifying common and future themes. First, clinical researchers were particularly dedicated to defining refractory forms of diseases and to discuss the use and switch of therapeutic monoclonal antibodies in everyday practice. Second, following the plethora of genome-wide association studies reported in most multifactorial diseases, it became clear that genomics cannot fully explain the individual susceptibility and additional environmental or epigenetic factors are necessary. Both these components were widely investigated, both in organ-specific (i.e., type 1 diabetes) and systemic (i.e., systemic lupus erythematosus) diseases. Third, a large number of 2011 works published in the autoimmunity area are dedicated to dissect pathogenetic mechanisms of tolerance breakdown in general or in specific conditions. While our understanding of T regulatory and Th17 cells has significantly increased in 2011, it is of note that most of the proposed lines of evidence identify potential targets for future treatments and should not be overlooked.
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Gene-gene and gene-sex epistatic interactions of MiR146a, IRF5, IKZF1, ETS1 and IL21 in systemic lupus erythematosus. PLoS One 2012; 7:e51090. [PMID: 23236436 PMCID: PMC3517573 DOI: 10.1371/journal.pone.0051090] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2012] [Accepted: 10/29/2012] [Indexed: 11/21/2022] Open
Abstract
Several confirmed genetic susceptibility loci involved in the interferon signaling and Th17/B cell response for SLE in Chinese Han populations have been described. Available data also indicate that sex-specific genetic differences contribute to SLE susceptibility. The aim of this study was to test for gene–gene/gene-sex epistasis (interactions) in these known lupus susceptibility loci. Six single-nucleotide polymorphisms (SNPs) in MiR146a, IRF5, IKZF1, ETS1 and IL21 were genotyped by Sequenom MassArray system. A total of 1,825 subjects (858 SLE patients and 967 controls) were included in the final analysis. Epistasis was tested by additive model, multiplicative model and multifactor dimensionality reduction (MDR) method. Additive interaction analysis revealed interactions between IRF5 and IKZF1 (OR 2.26, 95% CI 1.48–3.44 [P = 1.21×104]). A similar tendency was also observed between IL21 and ETS1 by parametric methods. In addition, multiple high dimensional gene-gene or gene-sex interactions (three-and four-way) were identified by MDR analysis. Our study identified novel gene–gene/gene-sex interactions in lupus. Furthermore, these findings highlight sex, interferon pathway, and Th17/B cells as important contributors to the pathogenesis of SLE.
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Guerra SG, Vyse TJ, Cunninghame Graham DS. The genetics of lupus: a functional perspective. Arthritis Res Ther 2012; 14:211. [PMID: 22640752 PMCID: PMC3446495 DOI: 10.1186/ar3844] [Citation(s) in RCA: 93] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Systemic lupus erythematosus (SLE) is an autoimmune disease with a strong genetic component and is characterized by chronic inflammation and the production of anti-nuclear auto-antibodies. In the era of genome-wide association studies (GWASs), elucidating the genetic factors present in SLE has been a very successful endeavor; 28 confirmed disease susceptibility loci have been mapped. In this review, we summarize the current understanding of the genetics of lupus and focus on the strongest associated risk loci found to date (P <1.0 × 10−8). Although these loci account for less than 10% of the genetic heritability and therefore do not account for the bulk of the disease heritability, they do implicate important pathways, which contribute to SLE pathogenesis. Consequently, the main focus of the review is to outline the genetic variants in the known associated loci and then to explore the potential functional consequences of the associated variants. We also highlight the genetic overlap of these loci with other autoimmune diseases, which indicates common pathogenic mechanisms. The importance of developing functional assays will be discussed and each of them will be instrumental in furthering our understanding of these associated variants and loci. Finally, we indicate that performing a larger SLE GWAS and applying a more targeted set of methods, such as the ImmunoChip and next generation sequencing methodology, are important for identifying additional loci and enhancing our understanding of the pathogenesis of SLE.
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Affiliation(s)
- Sandra G Guerra
- Department of Medical and Molecular Genetics, Division of Genetics and Molecular Medicine, King's College London, Great Maze Pond, London, SE1 9RT, UK
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24
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Maddur MS, Miossec P, Kaveri SV, Bayry J. Th17 cells: biology, pathogenesis of autoimmune and inflammatory diseases, and therapeutic strategies. THE AMERICAN JOURNAL OF PATHOLOGY 2012; 181:8-18. [PMID: 22640807 DOI: 10.1016/j.ajpath.2012.03.044] [Citation(s) in RCA: 427] [Impact Index Per Article: 35.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2011] [Revised: 02/07/2012] [Accepted: 03/15/2012] [Indexed: 12/22/2022]
Abstract
Th17 cells that secrete the cytokines IL-17A and IL-17F and express lineage-specific transcription factor RORC (RORγt in mice) represent a distinct lineage of CD4(+) T cells. Transforming growth factor-β and inflammatory cytokines, such as IL-6, IL-21, IL-1β, and IL-23, play central roles in the generation of Th17 cells. Th17 cells are critical for the clearance of extracellular pathogens, including Candida and Klebsiella. However, under certain conditions, these cells and their effector molecules, such as IL-17, IL-21, IL-22, GM-CSF, and CCL20, are associated with the pathogenesis of several autoimmune and inflammatory diseases, such as rheumatoid arthritis, systemic lupus erythematosus, multiple sclerosis, psoriasis, inflammatory bowel disease, and allergy and asthma. This review discusses these disease states and the various therapeutic strategies under investigation to target Th17 cells, which include blocking the differentiation and amplification of Th17 cells, inhibiting or neutralizing the cytokines of Th17 cells, and suppressing the transcription factors specific for Th17 cells.
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25
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Karolak A, van der Vaart A. Importance of local interactions for the stability of inhibitory helix 1 in apo Ets-1. Biophys Chem 2012; 165-166:74-8. [DOI: 10.1016/j.bpc.2012.03.007] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2012] [Revised: 03/10/2012] [Accepted: 03/18/2012] [Indexed: 11/27/2022]
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IL-17/IL-17 receptor system in autoimmune disease: mechanisms and therapeutic potential. Clin Sci (Lond) 2012; 122:487-511. [PMID: 22324470 DOI: 10.1042/cs20110496] [Citation(s) in RCA: 201] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
IL-17 (interleukin-17), a hallmark cytokine of Th17 (T-helper 17) cells, plays critical roles in host defence against bacterial and fungal infections, as well as in the pathogenesis of autoimmune diseases. The present review focuses on current knowledge of the regulation, functional mechanisms and targeting strategies of IL-17 in the context of inflammatory autoimmune diseases. Evidence shows that IL-17 is highly up-regulated at sites of inflammatory tissues of autoimmune diseases and amplifies the inflammation through synergy with other cytokines, such as TNF (tumour necrosis factor) α. Although IL-17 was originally thought to be produced mainly by Th17 cells, a newly defined T-cell subset with a specific differentiation programme and tight regulation, several other cell types (especially innate immune cells) are also found as important sources for IL-17 production. Although IL-17 activates common downstream signalling, including NF-κB (nuclear factor κB), MAPKs (mitogen-activated protein kinases), C/EBPs (CCAAT/enhancer-binding proteins) and mRNA stability, the immediate receptor signalling has been shown to be quite unique and tightly regulated. Mouse genetic studies have demonstrated a critical role for IL-17 in the pathogenesis of variety of inflammatory autoimmune diseases, such as RA (rheumatoid arthritis) and MS (multiple sclerosis). Importantly, promising results have been shown in initial clinical trials of monoclonal antibodies against IL-17 or its receptor (IL-17R) to block IL-17-mediated function in treating autoimmune patients with psoriasis, RA and MS. Therefore targeting IL-17/IL-17R, IL-17-producing pathways or IL-17-mediated signalling pathways can be considered for future therapy in autoimmune diseases.
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Murdaca G, Colombo BM, Puppo F. Emerging biological drugs: A new therapeutic approach for Systemic Lupus Erythematosus. An update upon efficacy and adverse events. Autoimmun Rev 2011; 11:56-60. [DOI: 10.1016/j.autrev.2011.07.006] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2011] [Accepted: 07/21/2011] [Indexed: 12/20/2022]
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28
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Genes, epigenetic regulation and environmental factors: which is the most relevant in developing autoimmune diseases? Autoimmun Rev 2011; 11:604-9. [PMID: 22041580 DOI: 10.1016/j.autrev.2011.10.022] [Citation(s) in RCA: 154] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Autoimmune diseases such as rheumatoid arthritis, systemic lupus erythematosus, multiple sclerosis and inflammatory bowel disease, have complex pathogeneses and likely multifactorial etiologies. The current paradigm for understanding their development is that the disease is triggered in genetically-susceptible individuals by exposure to environmental factors. Some of these environmental factors have been specifically identified, while others are hypothesized and not yet proven, and it is likely that most have yet to be identified. One interesting hypothesis is that environmental effects on immune responses could be mediated by changes in epigenetic regulation. Major mechanisms of epigenetic gene regulation include DNA methylation and histone modification. In these cases, gene expression is modified without involving changes in DNA sequence. Epigenetics is a new and interesting research field in autoimmune diseases. We review the roles of genetic factors, epigenetic regulation and the most studied environmental risk factors such as cigarette smoke, crystalline silica, Epstein-Barr virus, and reproductive hormones in the pathogenesis of autoimmune disease.
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29
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Leng RX, Pan HF, Qin WZ, Chen GM, Ye DQ. Role of microRNA-155 in autoimmunity. Cytokine Growth Factor Rev 2011; 22:141-7. [PMID: 21703910 DOI: 10.1016/j.cytogfr.2011.05.002] [Citation(s) in RCA: 99] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2011] [Revised: 05/23/2011] [Accepted: 05/24/2011] [Indexed: 11/29/2022]
Abstract
MicroRNAs (miRNAs) have recently emerged as a major class of gene expression regulators linked to most biological functions. MiR-155 is encoded within a region known as B cell integration cluster (Bic) gene, identified originally as a frequent integration site for the avian leukosis virus. Disregulation of endogenous miR-155 has been implicated in the pathogenesis of human cancers. Recently, aberrant expression of miR-155 was observed in many autoimmune conditions, including rheumatoid arthritis (RA), multiple sclerosis (MS), and systemic lupus erythematosus (SLE). Moreover, functional analysis demonstrated that miR-155 has powerful regulatory potential in a wide variety of immune cells through targeting specific mRNAs. Since pathogenic immune cells play a pivotal role in pathogenesis of human autoimmune diseases, miR-155 might be a versatile therapeutic target. This review will discuss the current understandings for the role of miR-155 in autoimmunity.
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Affiliation(s)
- Rui-Xue Leng
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, Hefei, Anhui, 230032, PR China
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