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Ma RX. A detective story of intermittent fasting effect on immunity. Immunology 2024. [PMID: 38922825 DOI: 10.1111/imm.13829] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2024] [Accepted: 06/13/2024] [Indexed: 06/28/2024] Open
Abstract
Intermittent fasting (IF) refers to periodic fasting routines, that caloric intake is minimized not by meal portion size reduction but by intermittently eliminating ingestion of one or several consecutive meals. IF can instigate comprehensive and multifaceted alterations in energy metabolism, these metabolic channels may aboundingly function as primordial mechanisms that interface with the immune system, instigating intricate immune transformations. This review delivers a comprehensive understanding of IF, paying particular attention to its influence on the immune system, thus seeking to bridge these two research domains. We explore how IF effects lipid metabolism, hormonal levels, circadian rhythm, autophagy, oxidative stress, gut microbiota, and intestinal barrier integrity, and conjecture about the mechanisms orchestrating the intersect between these factors and the immune system. Moreover, the review includes research findings on the implications of IF on the immune system and patients burdened with autoimmune diseases.
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Affiliation(s)
- Ru-Xue Ma
- School of Medical, Qinghai University, Xining, China
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2
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Lima ADR, Ferrari BB, Pradella F, Carvalho RM, Rivero SLS, Quintiliano RPS, Souza MA, Brunetti NS, Marques AM, Santos IP, Farias AS, Oliveira EC, Santos LMB. Dimethyl fumarate modulates the regulatory T cell response in the mesenteric lymph nodes of mice with experimental autoimmune encephalomyelitis. Front Immunol 2024; 15:1391949. [PMID: 38765015 PMCID: PMC11099268 DOI: 10.3389/fimmu.2024.1391949] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2024] [Accepted: 04/22/2024] [Indexed: 05/21/2024] Open
Abstract
Dimethyl fumarate (DMF, Tecfidera) is an oral drug utilized to treat relapsing-remitting multiple sclerosis (MS). DMF treatment reduces disease activity in MS. Gastrointestinal discomfort is a common adverse effect of the treatment with DMF. This study aimed to investigate the effect of DMF administration in the gut draining lymph nodes cells of C57BL6/J female mice with experimental autoimmune encephalomyelitis (EAE), an animal model of MS. We have demonstrated that the treatment with DMF (7.5 mg/kg) significantly reduces the severity of EAE. This reduction of the severity is accompanied by the increase of both proinflammatory and anti-inflammatory mechanisms at the beginning of the treatment. As the treatment progressed, we observed an increasing number of regulatory Foxp3 negative CD4 T cells (Tr1), and anti-inflammatory cytokines such as IL-27, as well as the reduction of PGE2 level in the mesenteric lymph nodes of mice with EAE. We provide evidence that DMF induces a gradual anti-inflammatory response in the gut draining lymph nodes, which might contribute to the reduction of both intestinal discomfort and the inflammatory response of EAE. These findings indicate that the gut is the first microenvironment of action of DMF, which may contribute to its effects of reducing disease severity in MS patients.
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Affiliation(s)
- Amanda D. R. Lima
- Unidade de Neuroimunologia, Dept.Genética, Evolução, Microbiologia e Imunologia, Universidade Estadual de Campinas (UNICAMP), Campinas, Brazil
| | - Breno B. Ferrari
- Unidade de Neuroimunologia, Dept.Genética, Evolução, Microbiologia e Imunologia, Universidade Estadual de Campinas (UNICAMP), Campinas, Brazil
| | - Fernando Pradella
- Unidade de Neuroimunologia, Dept.Genética, Evolução, Microbiologia e Imunologia, Universidade Estadual de Campinas (UNICAMP), Campinas, Brazil
| | - Rodrigo M. Carvalho
- Unidade de Neuroimunologia, Dept.Genética, Evolução, Microbiologia e Imunologia, Universidade Estadual de Campinas (UNICAMP), Campinas, Brazil
| | - Sandra L. S. Rivero
- Unidade de Neuroimunologia, Dept.Genética, Evolução, Microbiologia e Imunologia, Universidade Estadual de Campinas (UNICAMP), Campinas, Brazil
| | - Raphael P. S. Quintiliano
- Unidade de Neuroimunologia, Dept.Genética, Evolução, Microbiologia e Imunologia, Universidade Estadual de Campinas (UNICAMP), Campinas, Brazil
| | - Matheus A. Souza
- Unidade de Neuroimunologia, Dept.Genética, Evolução, Microbiologia e Imunologia, Universidade Estadual de Campinas (UNICAMP), Campinas, Brazil
| | - Natália S. Brunetti
- Unidade de Neuroimunologia, Dept.Genética, Evolução, Microbiologia e Imunologia, Universidade Estadual de Campinas (UNICAMP), Campinas, Brazil
| | - Ana M. Marques
- Unidade de Neuroimunologia, Dept.Genética, Evolução, Microbiologia e Imunologia, Universidade Estadual de Campinas (UNICAMP), Campinas, Brazil
| | - Irene P. Santos
- Departamento de Citometria do Centro de Hematologia e Hemoterapia da UNICAMP, Universidade Estadual de Campinas (UNICAMP), Campinas, Brazil
| | - Alessandro S. Farias
- Unidade de Neuroimunologia, Dept.Genética, Evolução, Microbiologia e Imunologia, Universidade Estadual de Campinas (UNICAMP), Campinas, Brazil
| | - Elaine C. Oliveira
- Unidade de Neuroimunologia, Dept.Genética, Evolução, Microbiologia e Imunologia, Universidade Estadual de Campinas (UNICAMP), Campinas, Brazil
- Technology Faculty of Sorocaba- Paula Souza State Center of Technological Education, Sorocaba, Brazil
| | - Leonilda M. B. Santos
- Unidade de Neuroimunologia, Dept.Genética, Evolução, Microbiologia e Imunologia, Universidade Estadual de Campinas (UNICAMP), Campinas, Brazil
- Brazilian National Institute of Science and Technology on Neuroimmunomodulation, (INCT-NIM), National Council for Scientific and Technological Development (CNPq), Brasilia, Brazil
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3
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Kulalert W, Wells AC, Link VM, Lim AI, Bouladoux N, Nagai M, Harrison OJ, Kamenyeva O, Kabat J, Enamorado M, Chiu IM, Belkaid Y. The neuroimmune CGRP-RAMP1 axis tunes cutaneous adaptive immunity to the microbiota. Proc Natl Acad Sci U S A 2024; 121:e2322574121. [PMID: 38451947 PMCID: PMC10945812 DOI: 10.1073/pnas.2322574121] [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: 12/27/2023] [Accepted: 01/22/2024] [Indexed: 03/09/2024] Open
Abstract
The somatosensory nervous system surveils external stimuli at barrier tissues, regulating innate immune cells under infection and inflammation. The roles of sensory neurons in controlling the adaptive immune system, and more specifically immunity to the microbiota, however, remain elusive. Here, we identified a mechanism for direct neuroimmune communication between commensal-specific T lymphocytes and somatosensory neurons mediated by the neuropeptide calcitonin gene-related peptide (CGRP) in the skin. Intravital imaging revealed that commensal-specific T cells are in close proximity to cutaneous nerve fibers in vivo. Correspondingly, we observed upregulation of the receptor for the neuropeptide CGRP, RAMP1, in CD8+ T lymphocytes induced by skin commensal colonization. The neuroimmune CGRP-RAMP1 signaling axis functions in commensal-specific T cells to constrain Type 17 responses and moderate the activation status of microbiota-reactive lymphocytes at homeostasis. As such, modulation of neuroimmune CGRP-RAMP1 signaling in commensal-specific T cells shapes the overall activation status of the skin epithelium, thereby impacting the outcome of responses to insults such as wounding. The ability of somatosensory neurons to control adaptive immunity to the microbiota via the CGRP-RAMP1 axis underscores the various layers of regulation and multisystem coordination required for optimal microbiota-reactive T cell functions under steady state and pathology.
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Affiliation(s)
- Warakorn Kulalert
- Metaorganism Immunity Section, Laboratory of Host Immunity and Microbiome, National Institute of Allergy and Infectious Diseases, NIH, Bethesda, MD20892
| | - Alexandria C. Wells
- Metaorganism Immunity Section, Laboratory of Host Immunity and Microbiome, National Institute of Allergy and Infectious Diseases, NIH, Bethesda, MD20892
| | - Verena M. Link
- Metaorganism Immunity Section, Laboratory of Host Immunity and Microbiome, National Institute of Allergy and Infectious Diseases, NIH, Bethesda, MD20892
| | - Ai Ing Lim
- Metaorganism Immunity Section, Laboratory of Host Immunity and Microbiome, National Institute of Allergy and Infectious Diseases, NIH, Bethesda, MD20892
| | - Nicolas Bouladoux
- Metaorganism Immunity Section, Laboratory of Host Immunity and Microbiome, National Institute of Allergy and Infectious Diseases, NIH, Bethesda, MD20892
- National Institute of Allergy and Infectious Diseases Microbiome Program, National Institute of Allergy and Infectious Diseases, NIH, Bethesda, MD20892
| | - Motoyoshi Nagai
- Metaorganism Immunity Section, Laboratory of Host Immunity and Microbiome, National Institute of Allergy and Infectious Diseases, NIH, Bethesda, MD20892
| | - Oliver J. Harrison
- Metaorganism Immunity Section, Laboratory of Host Immunity and Microbiome, National Institute of Allergy and Infectious Diseases, NIH, Bethesda, MD20892
| | - Olena Kamenyeva
- Biological Imaging Section, Research Technology Branch, National Institute of Allergy and Infectious Diseases, NIH, Bethesda, MD20892
| | - Juraj Kabat
- Biological Imaging Section, Research Technology Branch, National Institute of Allergy and Infectious Diseases, NIH, Bethesda, MD20892
| | - Michel Enamorado
- Metaorganism Immunity Section, Laboratory of Host Immunity and Microbiome, National Institute of Allergy and Infectious Diseases, NIH, Bethesda, MD20892
- Kimberly and Eric J. Waldman Department of Dermatology, Mark Lebwohl Center for Neuroinflammation and Sensation, Marc and Jennifer Lipschultz Precision Immunology Institute, and Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, NY10029
| | - Isaac M. Chiu
- Department of Immunology, Harvard Medical School, Boston, MA02115
| | - Yasmine Belkaid
- Metaorganism Immunity Section, Laboratory of Host Immunity and Microbiome, National Institute of Allergy and Infectious Diseases, NIH, Bethesda, MD20892
- National Institute of Allergy and Infectious Diseases Microbiome Program, National Institute of Allergy and Infectious Diseases, NIH, Bethesda, MD20892
- Unite Metaorganisme, Immunology Department, Pasteur Institute, 75015 Paris, France
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4
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Kulalert W, Wells AC, Link VM, Lim AI, Bouladoux N, Nagai M, Harrison OJ, Kamenyeva O, Kabat J, Enamorado M, Chiu IM, Belkaid Y. The neuroimmune CGRP-RAMP1 axis tunes cutaneous adaptive immunity to the microbiota. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.12.26.573358. [PMID: 38234748 PMCID: PMC10793430 DOI: 10.1101/2023.12.26.573358] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/19/2024]
Abstract
The somatosensory nervous system surveils external stimuli at barrier tissues, regulating innate immune cells under infection and inflammation. The roles of sensory neurons in controlling the adaptive immune system, and more specifically immunity to the microbiota, however, remain elusive. Here, we identified a novel mechanism for direct neuroimmune communication between commensal-specific T lymphocytes and somatosensory neurons mediated by the neuropeptide Calcitonin Gene-Related Peptide (CGRP) in the skin. Intravital imaging revealed that commensal-specific T cells are in close proximity to cutaneous nerve fibers in vivo . Correspondingly, we observed upregulation of the receptor for the neuropeptide CGRP, RAMP1, in CD8 + T lymphocytes induced by skin commensal colonization. Neuroimmune CGRP-RAMP1 signaling axis functions in commensal-specific T cells to constrain Type 17 responses and moderate the activation status of microbiota-reactive lymphocytes at homeostasis. As such, modulation of neuroimmune CGRP-RAMP1 signaling in commensal-specific T cells shapes the overall activation status of the skin epithelium, thereby impacting the outcome of responses to insults such as wounding. The ability of somatosensory neurons to control adaptive immunity to the microbiota via the CGRP-RAMP1 axis underscores the various layers of regulation and multisystem coordination required for optimal microbiota-reactive T cell functions under steady state and pathology. Significance statement Multisystem coordination at barrier surfaces is critical for optimal tissue functions and integrity, in response to microbial and environmental cues. In this study, we identified a novel neuroimmune crosstalk mechanism between the sensory nervous system and the adaptive immune response to the microbiota, mediated by the neuropeptide CGRP and its receptor RAMP1 on skin microbiota-induced T lymphocytes. The neuroimmune CGPR-RAMP1 axis constrains adaptive immunity to the microbiota and overall limits the activation status of the skin epithelium, impacting tissue responses to wounding. Our study opens the door to a new avenue to modulate adaptive immunity to the microbiota utilizing neuromodulators, allowing for a more integrative and tailored approach to harnessing microbiota-induced T cells to promote barrier tissue protection and repair.
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5
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Shao F, Liu Z, Wei Q, Yu D, Zhao M, Zhang X, Gao X, Fan Z, Wang S. FOXO1 orchestrates the intestinal homeostasis via neuronal signaling in group 3 innate lymphoid cells. J Exp Med 2023; 220:e20230133. [PMID: 37549024 PMCID: PMC10405431 DOI: 10.1084/jem.20230133] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2023] [Revised: 05/30/2023] [Accepted: 07/20/2023] [Indexed: 08/09/2023] Open
Abstract
The neuro-immune regulation is associated with homeostasis of the intestine. Intestinal group 3 innate lymphoid cells (ILC3s) are tissue-resident lymphocytes whose functions are affected by the intestine niche. However, how a gut neuronal signal coordinates the immune response of ILC3s is largely unknown. Here, we found that cyclic adenosine monophosphate (cAMP) signaling exacerbated the inflammatory response and attenuated the expression level of the transcription factor forkhead box O1 (FOXO1) in ILC3s. Deficiency of FOXO1 drove the hyperactivation of ILC3s and resulted in gut inflammation independently of T cells. Mechanistically, FOXO1 promoted the transcription of neuropeptide receptor VIPR2 and inhibited the transcription of adrenoceptor ADRA2A in ILC3s. FOXO1-related regulation of VIPR2 and ADRA2A signaling balanced the activation of ILC3s under steady condition or during colitis. Moreover, chronic stress elevated cAMP level and downregulated FOXO1 level, exacerbating intestinal inflammation. Our findings reveal that FOXO1 balances the activation of ILC3s via VIP and adrenergic signaling and regulates intestinal homeostasis.
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Affiliation(s)
- Fei Shao
- CAS Key Laboratory of Pathogen Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Zhen Liu
- CAS Key Laboratory of Pathogen Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Qinglin Wei
- Department of Gastroenterology, Seventh Medical Center of PLA General Hospital, Beijing, China
- Department of Cadre Diagnosis and Treatment, Seventh Medical Center of PLA General Hospital, Beijing, China
| | - Dou Yu
- CAS Key Laboratory of Pathogen Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Min Zhao
- CAS Key Laboratory of Pathogen Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China
| | - Xusheng Zhang
- CAS Key Laboratory of Pathogen Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Xintong Gao
- CAS Key Laboratory of Pathogen Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Zusen Fan
- CAS Key Laboratory of Infection and Immunity, CAS Center for Excellence in Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing, China
| | - Shuo Wang
- CAS Key Laboratory of Pathogen Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China
- University of Chinese Academy of Sciences, Beijing, China
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6
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Carvajal Gonczi CM, Hajiaghayi M, Gholizadeh F, Xavier Soares MA, Touma F, Lopez Naranjo C, Rios AJ, Pozzebon C, Daigneault T, Burchell-Reyes K, Darlington PJ. The β2-adrenergic receptor agonist terbutaline upregulates T helper-17 cells in a protein kinase A-dependent manner. Hum Immunol 2023; 84:515-524. [PMID: 37438188 DOI: 10.1016/j.humimm.2023.06.007] [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: 06/09/2023] [Accepted: 06/30/2023] [Indexed: 07/14/2023]
Abstract
BACKGROUND T helper 17 (Th17) cells produce IL-17A cytokine and can exacerbate autoimmune diseases and asthma. The β2 adrenergic receptor is a g protein-coupled receptor that induces cAMP second messenger pathways. We tested the hypothesis that terbutaline, a β2-adrenergic receptor-specific agonist, promotes IL-17 secretion by memory Th17 cells in a cAMP and PKA-dependent manner. METHODS Venous peripheral blood mononuclear cells (PBMC) from healthy human participants were activated with anti-CD3 and anti-CD28 antibodies. Secreted IL-17A was measured by enzyme linked immunosorbent assay, intracellular IL-17A, and RORγ were measured using flow cytometry, and RORC by qPCR. Memory CD3+CD4+CD45RA-CD45RO+ T cells were obtained by immunomagnetic negative selection and activated with tri-antibody complex CD3/CD28/CD2. Secreted IL-17A, intracellular IL-17A, RORC were measured, and phosphorylated-serine133-CREB was measured by western blotting memory Th cells. RESULTS Terbutaline increased IL-17A (p < 0.001), IL-17A+ cells (p < 0.05), and RORC in activated PBMC and memory Th cells. The PKA inhibitors H89 (p < 0.001) and Rp-cAMP (p < 0.01) abrogated the effects of terbutaline on IL-17A secretion in PBMC and memory T cells. Rolipram increased IL-17A (p < 0.01) to a similar extent as terbutaline. P-Ser133-CREB was increased by terbutaline (p < 0.05) in memory T cells. CONCLUSION Terbutaline augments memory Th17 cells in lymphocytes from healthy participants. This could exacerbate autoimmune diseases or asthma, in cases where Th17 cells are considered to be pro-inflammatory.
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Affiliation(s)
| | - Mehri Hajiaghayi
- Department of Biology, PERFORM Centre, Concordia University, Montreal, Quebec, Canada
| | - Fatemeh Gholizadeh
- Department of Biology, PERFORM Centre, Concordia University, Montreal, Quebec, Canada
| | | | - Fadi Touma
- Department of Biology, PERFORM Centre, Concordia University, Montreal, Quebec, Canada
| | | | - Amanda J Rios
- Department of Biology, PERFORM Centre, Concordia University, Montreal, Quebec, Canada
| | - Chelsea Pozzebon
- Department of Psychology, PERFORM Centre, Concordia University, Montreal, Quebec, Canada
| | - Tina Daigneault
- Department of Biology, PERFORM Centre, Concordia University, Montreal, Quebec, Canada
| | - Kelly Burchell-Reyes
- Department of Chemistry and Biochemistry, PERFORM Centre, Concordia University, Montreal, Quebec, Canada
| | - Peter J Darlington
- Department of Biology, PERFORM Centre, Concordia University, Montreal, Quebec, Canada; Department of Psychology, PERFORM Centre, Concordia University, Montreal, Quebec, Canada; Department of Health, Kinesiology & Applied Physiology, PERFORM Centre, Montreal, Quebec, Canada.
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7
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Baßler K, Schmidleithner L, Shakiba MH, Elmzzahi T, Köhne M, Floess S, Scholz R, Ohkura N, Sadlon T, Klee K, Neubauer A, Sakaguchi S, Barry SC, Huehn J, Bonaguro L, Ulas T, Beyer M. Identification of the novel FOXP3-dependent T reg cell transcription factor MEOX1 by high-dimensional analysis of human CD4 + T cells. Front Immunol 2023; 14:1107397. [PMID: 37559728 PMCID: PMC10407399 DOI: 10.3389/fimmu.2023.1107397] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Accepted: 06/27/2023] [Indexed: 08/11/2023] Open
Abstract
CD4+ T cells play a central role in the adaptive immune response through their capacity to activate, support and control other immune cells. Although these cells have become the focus of intense research, a comprehensive understanding of the underlying regulatory networks that orchestrate CD4+ T cell function and activation is still incomplete. Here, we analyzed a large transcriptomic dataset consisting of 48 different human CD4+ T cell conditions. By performing reverse network engineering, we identified six common denominators of CD4+ T cell functionality (CREB1, E2F3, AHR, STAT1, NFAT5 and NFATC3). Moreover, we also analyzed condition-specific genes which led us to the identification of the transcription factor MEOX1 in Treg cells. Expression of MEOX1 was comparable to FOXP3 in Treg cells and can be upregulated by IL-2. Epigenetic analyses revealed a permissive epigenetic landscape for MEOX1 solely in Treg cells. Knockdown of MEOX1 in Treg cells revealed a profound impact on downstream gene expression programs and Treg cell suppressive capacity. These findings in the context of CD4+ T cells contribute to a better understanding of the transcriptional networks and biological mechanisms controlling CD4+ T cell functionality, which opens new avenues for future therapeutic strategies.
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Affiliation(s)
- Kevin Baßler
- Systems Medicine, German Center for Neurodegenerative Diseases (DZNE), Bonn, Germany
- LIMES-Institute, Laboratory for Genomics and Immunoregulation, University of Bonn, Bonn, Germany
| | - Lisa Schmidleithner
- Immunogenomics & Neurodegeneration, German Center for Neurodegenerative Diseases (DZNE), Bonn, Germany
| | | | - Tarek Elmzzahi
- Immunogenomics & Neurodegeneration, German Center for Neurodegenerative Diseases (DZNE), Bonn, Germany
- Department of Microbiology and Immunology, The Peter Doherty Institute for Infection and Immunity, University of Melbourne, Melbourne, VIC, Australia
| | - Maren Köhne
- Immunogenomics & Neurodegeneration, German Center for Neurodegenerative Diseases (DZNE), Bonn, Germany
| | - Stefan Floess
- Experimental Immunology, Helmholtz Centre for Infection Research, Braunschweig, Germany
| | - Rebekka Scholz
- Immunogenomics & Neurodegeneration, German Center for Neurodegenerative Diseases (DZNE), Bonn, Germany
| | - Naganari Ohkura
- Laboratory of Experimental Immunology, WPI Immunology Frontier Research Center, Osaka University, Osaka, Japan
| | - Timothy Sadlon
- Molecular Immunology, Robinson Research Institute, University of Adelaide, Norwich Centre, North Adelaide, SA, Australia
| | - Kathrin Klee
- LIMES-Institute, Laboratory for Genomics and Immunoregulation, University of Bonn, Bonn, Germany
| | - Anna Neubauer
- Immunogenomics & Neurodegeneration, German Center for Neurodegenerative Diseases (DZNE), Bonn, Germany
| | - Shimon Sakaguchi
- Laboratory of Experimental Immunology, WPI Immunology Frontier Research Center, Osaka University, Osaka, Japan
| | - Simon C. Barry
- Molecular Immunology, Robinson Research Institute, University of Adelaide, Norwich Centre, North Adelaide, SA, Australia
| | - Jochen Huehn
- Experimental Immunology, Helmholtz Centre for Infection Research, Braunschweig, Germany
| | - Lorenzo Bonaguro
- Systems Medicine, German Center for Neurodegenerative Diseases (DZNE), Bonn, Germany
- LIMES-Institute, Laboratory for Genomics and Immunoregulation, University of Bonn, Bonn, Germany
| | - Thomas Ulas
- Systems Medicine, German Center for Neurodegenerative Diseases (DZNE), Bonn, Germany
- LIMES-Institute, Laboratory for Genomics and Immunoregulation, University of Bonn, Bonn, Germany
- PRECISE, Platform for Single Cell Genomics and Epigenomics at the German Center for Neurodegenerative Diseases and the University of Bonn, Bonn, Germany
| | - Marc Beyer
- Immunogenomics & Neurodegeneration, German Center for Neurodegenerative Diseases (DZNE), Bonn, Germany
- PRECISE, Platform for Single Cell Genomics and Epigenomics at the German Center for Neurodegenerative Diseases and the University of Bonn, Bonn, Germany
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8
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You J, Reilly MD, Eljalby M, Bareja R, Yusupova M, Vyas NS, Bang J, Ding W, Desman G, Miller LS, Elemento O, Granstein RD, Zippin JH. Soluble adenylyl cyclase contributes to imiquimod-mediated inflammation and is a potential therapeutic target in psoriasis. Exp Dermatol 2023; 32:1051-1062. [PMID: 37039485 PMCID: PMC10523866 DOI: 10.1111/exd.14811] [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: 11/09/2022] [Revised: 03/21/2023] [Accepted: 04/02/2023] [Indexed: 04/12/2023]
Abstract
Cyclic AMP (cAMP) has a key role in psoriasis pathogenesis, as indicated by the therapeutic efficacy of phosphodiesterase inhibitors that prevent the degradation of cAMP. However, whether soluble adenylate cyclase (sAC) (encoded by the ADCY10 gene), which is an important source for cAMP, is involved in Th17 cell-mediated inflammation or could be an alternative therapeutic target in psoriasis is unknown. We have utilized the imiquimod model of murine psoriasiform dermatitis to address this question. Adcy10-/- mice had reduced erythema, scaling and swelling in the skin and reduced CD4+ IL17+ cell numbers in the draining lymph nodes, compared with wild-type mice after induction of psoriasiform dermatitis with imiquimod. Keratinocyte-specific knock out of Adcy10 had no effect on imiquimod-induced ear swelling suggesting keratinocyte sAC has no role in imiquimod-induced inflammation. During Th17 polarization in vitro, naive T cells from Adcy10-/- mice exhibited reduced IL17 secretion and IL-17+ T-cell proliferation suggesting that differentiation into Th17 cells is suppressed without sAC activity. Interestingly, loss of sAC did not impact the expression of Th17 lineage-defining transcription factors (such as Rorc and cMaf) but rather was required for CREB-dependent gene expression, which is known to support Th17 cell gene expression. Finally, topical application of small molecule sAC inhibitors (sACi) reduced imiquimod-induced psoriasiform dermatitis and Il17 gene expression in the skin. Collectively, these findings demonstrate that sAC is important for psoriasiform dermatitis in mouse skin. sACi may provide an alternative class of topical therapeutics for Th17-mediated skin diseases.
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Affiliation(s)
- Jaewon You
- Department of Dermatology, Weill Cornell Medicine, NY NY
| | | | | | - Rohan Bareja
- Englander Institute of Precision Medicine, Weill Cornell Medicine, NY NY
| | | | - Nikki S. Vyas
- Departments of Pathology and Dermatology, Icahn School of Medicine at Mount Sinai, NY NY
| | - Jakyung Bang
- Department of Dermatology, Weill Cornell Medicine, NY NY
| | - Wanhong Ding
- Department of Dermatology, Weill Cornell Medicine, NY NY
| | - Garrett Desman
- Departments of Pathology and Dermatology, Icahn School of Medicine at Mount Sinai, NY NY
- ProHEALTH Care Associates, OptumCare, New Hyde Park, NY
| | - Lloyd S. Miller
- Department of Dermatology, Johns Hopkins University School of Medicine, Baltimore, MD
- Immunology, Janssen Research and Development, Spring House, PA
| | - Olivier Elemento
- Englander Institute of Precision Medicine, Weill Cornell Medicine, NY NY
| | | | - Jonathan H. Zippin
- Department of Dermatology, Weill Cornell Medicine, NY NY
- Englander Institute of Precision Medicine, Weill Cornell Medicine, NY NY
- Department of Pharmacology, Weill Cornell Medicine, NY NY
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9
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Compton SE, Kitchen-Goosen SM, DeCamp LM, Lau KH, Mabvakure B, Vos M, Williams KS, Wong KK, Shi X, Rothbart SB, Krawczyk CM, Jones RG. LKB1 controls inflammatory potential through CRTC2-dependent histone acetylation. Mol Cell 2023:S1097-2765(23)00288-5. [PMID: 37172591 DOI: 10.1016/j.molcel.2023.04.017] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Revised: 03/17/2023] [Accepted: 04/18/2023] [Indexed: 05/15/2023]
Abstract
Deregulated inflammation is a critical feature driving the progression of tumors harboring mutations in the liver kinase B1 (LKB1), yet the mechanisms linking LKB1 mutations to deregulated inflammation remain undefined. Here, we identify deregulated signaling by CREB-regulated transcription coactivator 2 (CRTC2) as an epigenetic driver of inflammatory potential downstream of LKB1 loss. We demonstrate that LKB1 mutations sensitize both transformed and non-transformed cells to diverse inflammatory stimuli, promoting heightened cytokine and chemokine production. LKB1 loss triggers elevated CRTC2-CREB signaling downstream of the salt-inducible kinases (SIKs), increasing inflammatory gene expression in LKB1-deficient cells. Mechanistically, CRTC2 cooperates with the histone acetyltransferases CBP/p300 to deposit histone acetylation marks associated with active transcription (i.e., H3K27ac) at inflammatory gene loci, promoting cytokine expression. Together, our data reveal a previously undefined anti-inflammatory program, regulated by LKB1 and reinforced through CRTC2-dependent histone modification signaling, that links metabolic and epigenetic states to cell-intrinsic inflammatory potential.
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Affiliation(s)
- Shelby E Compton
- Department of Metabolism and Nutritional Programming, Van Andel Institute, Grand Rapids, MI, USA
| | - Susan M Kitchen-Goosen
- Department of Metabolism and Nutritional Programming, Van Andel Institute, Grand Rapids, MI, USA; Metabolism and Nutrition (MeNu) Program, Van Andel Institute, Grand Rapids, MI, USA
| | - Lisa M DeCamp
- Department of Metabolism and Nutritional Programming, Van Andel Institute, Grand Rapids, MI, USA; Metabolism and Nutrition (MeNu) Program, Van Andel Institute, Grand Rapids, MI, USA
| | - Kin H Lau
- Bioinformatics and Biostatistics Core, Van Andel Institute, Grand Rapids, MI, USA
| | - Batsirai Mabvakure
- Department of Metabolism and Nutritional Programming, Van Andel Institute, Grand Rapids, MI, USA
| | - Matthew Vos
- Department of Metabolism and Nutritional Programming, Van Andel Institute, Grand Rapids, MI, USA; Metabolism and Nutrition (MeNu) Program, Van Andel Institute, Grand Rapids, MI, USA
| | - Kelsey S Williams
- Department of Metabolism and Nutritional Programming, Van Andel Institute, Grand Rapids, MI, USA; Metabolism and Nutrition (MeNu) Program, Van Andel Institute, Grand Rapids, MI, USA
| | - Kwok-Kin Wong
- Laura and Isaac Perlmutter Cancer Center, NYU Langone Health, New York, NY, USA
| | - Xiaobing Shi
- Department of Epigenetics, Van Andel Institute, Grand Rapids, MI, USA
| | - Scott B Rothbart
- Department of Epigenetics, Van Andel Institute, Grand Rapids, MI, USA
| | - Connie M Krawczyk
- Department of Metabolism and Nutritional Programming, Van Andel Institute, Grand Rapids, MI, USA; Metabolism and Nutrition (MeNu) Program, Van Andel Institute, Grand Rapids, MI, USA
| | - Russell G Jones
- Department of Metabolism and Nutritional Programming, Van Andel Institute, Grand Rapids, MI, USA; Metabolism and Nutrition (MeNu) Program, Van Andel Institute, Grand Rapids, MI, USA.
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10
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Kawano M, Takagi R, Tokano M, Matsushita S. Adenosine induces IL-31 secretion by T-helper 2 cells: Implication for the effect of adenosine on atopic dermatitis and its therapeutic strategy. Biochem Biophys Res Commun 2023; 645:47-54. [PMID: 36680936 DOI: 10.1016/j.bbrc.2023.01.038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Revised: 01/04/2023] [Accepted: 01/13/2023] [Indexed: 01/15/2023]
Abstract
Interleukin (IL)-31 is a recently-identified cytokine with a well-defined role in the pathogenesis of pruritus. Previously, we reported that adenosine upregulates IL-17A secretion by T-helper (Th)17 cells; however, the effect of adenosine on T cell subsets other than Th17 remains unclear. In this report, we show that adenosine upregulated production of IL-31 by cluster of differentiation (CD)4+ T cells. IL-31 was also upregulated by administration of an adenosine A2a receptor (A2aR) agonist (PSB0777), and adenosine-mediated IL-31 production was inhibited by an A2aR antagonist (istradefylline). Production of Th2-related cytokines (IL-4, IL-10, and IL-13) by CD4+ T cells showed the same tendency. Immune subset analyses revealed that adenosine upregulated IL-31 secretion by CD4+ chemokine receptor 3high T cells, and that Th2 cells differentiated from naïve CD4+ T cells. Administration of istradefylline to mice with atopic dermatitis suppressed the symptoms, suggesting that A2aR antagonists are an effective treatment for inflammatory dermatitis. Taken together, the results indicate that adenosine upregulates secretion of Th2-related cytokines by effector T cells in the skin, thereby triggering atopic dermatitis and associated pruritus.
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Affiliation(s)
- Masaaki Kawano
- Department of Allergy and Immunology, Faculty of Medicine, Saitama Medical University, 38 Morohongo, Moroyama, Saitama, 350-0495, Japan; Allergy Center, Saitama Medical University, 38 Morohongo, Moroyama, Saitama, 350-0495, Japan
| | - Rie Takagi
- Department of Allergy and Immunology, Faculty of Medicine, Saitama Medical University, 38 Morohongo, Moroyama, Saitama, 350-0495, Japan
| | - Mieko Tokano
- Department of Allergy and Immunology, Faculty of Medicine, Saitama Medical University, 38 Morohongo, Moroyama, Saitama, 350-0495, Japan; Allergy Center, Saitama Medical University, 38 Morohongo, Moroyama, Saitama, 350-0495, Japan; Department of Infectious Disease and Infection Control, Saitama Medical University, 38 Morohongo, Moroyama, Saitama, 350-0495, Japan
| | - Sho Matsushita
- Department of Allergy and Immunology, Faculty of Medicine, Saitama Medical University, 38 Morohongo, Moroyama, Saitama, 350-0495, Japan; Allergy Center, Saitama Medical University, 38 Morohongo, Moroyama, Saitama, 350-0495, Japan.
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11
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The role of PGE2 and EP receptors on lung's immune and structural cells; possibilities for future asthma therapy. Pharmacol Ther 2023; 241:108313. [PMID: 36427569 DOI: 10.1016/j.pharmthera.2022.108313] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2022] [Revised: 10/06/2022] [Accepted: 11/17/2022] [Indexed: 11/27/2022]
Abstract
Asthma is the most common airway chronic disease with treatments aimed mainly to control the symptoms. Adrenergic receptor agonists, corticosteroids and anti-leukotrienes have been used for decades, and the development of more targeted asthma treatments, known as biological therapies, were only recently established. However, due to the complexity of asthma and the limited efficacy as well as the side effects of available treatments, there is an urgent need for a new generation of asthma therapies. The anti-inflammatory and bronchodilatory effects of prostaglandin E2 in asthma are promising, yet complicated by undesirable side effects, such as cough and airway irritation. In this review, we summarize the most important literature on the role of all four E prostanoid (EP) receptors on the lung's immune and structural cells to further dissect the relevance of EP2/EP4 receptors as potential targets for future asthma therapy.
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12
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Tokano M, Matsushita S, Takagi R, Yamamoto T, Kawano M. Extracellular adenosine induces hypersecretion of IL-17A by T-helper 17 cells through the adenosine A2a receptor. Brain Behav Immun Health 2022; 26:100544. [DOI: 10.1016/j.bbih.2022.100544] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Revised: 10/12/2022] [Accepted: 10/23/2022] [Indexed: 11/07/2022] Open
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13
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Zhang S, Mao C, Li X, Miao W, Teng J. Advances in Potential Cerebrospinal Fluid Biomarkers for Autoimmune Encephalitis: A Review. Front Neurol 2022; 13:746653. [PMID: 35937071 PMCID: PMC9355282 DOI: 10.3389/fneur.2022.746653] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2021] [Accepted: 06/20/2022] [Indexed: 12/24/2022] Open
Abstract
Autoimmune encephalitis (AE) is a severe inflammatory disease of the brain. Patients with AE demonstrate amnesia, seizures, and psychosis. Recent studies have identified numerous associated autoantibodies (e.g., against NMDA receptors (NMDARs), LGI1, etc.) involved in the pathogenesis of AE, and the levels of diagnosis and treatment are thus improved dramatically. However, there are drawbacks of clinical diagnosis and treatment based solely on antibody levels, and thus the application of additional biomarkers is urgently needed. Considering the important role of immune mechanisms in AE development, we summarize the relevant research progress in identifying cerebrospinal fluid (CSF) biomarkers with a focus on cytokines/chemokines, demyelination, and nerve damage.
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14
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Xia J, Chen S, Li Y, Li H, Gan M, Wu J, Prohaska CC, Bai Y, Gao L, Gu L, Zhang D. Immune Response Is Key to Genetic Mechanisms of SARS-CoV-2 Infection With Psychiatric Disorders Based on Differential Gene Expression Pattern Analysis. Front Immunol 2022; 13:798538. [PMID: 35185890 PMCID: PMC8854505 DOI: 10.3389/fimmu.2022.798538] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2021] [Accepted: 01/13/2022] [Indexed: 12/11/2022] Open
Abstract
Existing evidence demonstrates that coronavirus disease 2019 (COVID-19) leads to psychiatric illness, despite its main clinical manifestations affecting the respiratory system. People with mental disorders are more susceptible to COVID-19 than individuals without coexisting mental health disorders, with significantly higher rates of severe illness and mortality in this population. The incidence of new psychiatric diagnoses after infection with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is also remarkably high. SARS-CoV-2 has been reported to use angiotensin-converting enzyme-2 (ACE2) as a receptor for infecting susceptible cells and is expressed in various tissues, including brain tissue. Thus, there is an urgent need to investigate the mechanism linking psychiatric disorders to COVID-19. Using a data set of peripheral blood cells from patients with COVID-19, we compared this to data sets of whole blood collected from patients with psychiatric disorders and used bioinformatics and systems biology approaches to identify genetic links. We found a large number of overlapping immune-related genes between patients infected with SARS-CoV-2 and differentially expressed genes of bipolar disorder (BD), schizophrenia (SZ), and late-onset major depressive disorder (LOD). Many pathways closely related to inflammatory responses, such as MAPK, PPAR, and TGF-β signaling pathways, were observed by enrichment analysis of common differentially expressed genes (DEGs). We also performed a comprehensive analysis of protein-protein interaction network and gene regulation networks. Chemical-protein interaction networks and drug prediction were used to screen potential pharmacologic therapies. We hope that by elucidating the relationship between the pathogenetic processes and genetic mechanisms of infection with SARS-CoV-2 with psychiatric disorders, it will lead to innovative strategies for future research and treatment of psychiatric disorders linked to COVID-19.
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Affiliation(s)
- Jing Xia
- Department of Pharmacognosy, School of Pharmacy, China Medical University, Shenyang, China
| | - Shuhan Chen
- Department of Pharmacognosy, School of Pharmacy, China Medical University, Shenyang, China
| | - Yaping Li
- Department of Pharmacognosy, School of Pharmacy, China Medical University, Shenyang, China
| | - Hua Li
- Department of Pharmacognosy, School of Pharmacy, China Medical University, Shenyang, China
| | - Minghong Gan
- Department of Pharmacognosy, School of Pharmacy, China Medical University, Shenyang, China
| | - Jiashuo Wu
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Clare Colette Prohaska
- Division of Pulmonary, Critical Care, Sleep, and Occupational Medicine, Department of Medicine, Indiana University, Indianapolis, IN, United States
| | - Yang Bai
- Department of Clinical Pharmacology, School of Pharmacy, China Medical University, Shenyang, China
| | - Lu Gao
- Department of Pharmacognosy, School of Pharmacy, China Medical University, Shenyang, China
| | - Li Gu
- Department of Pharmacognosy, School of Pharmacy, China Medical University, Shenyang, China
| | - Dongfang Zhang
- Department of Pharmacognosy, School of Pharmacy, China Medical University, Shenyang, China
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15
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The analysis of a subset of HLA region associations in type 1 diabetes and multiple sclerosis suggests the involvement mechanisms other than antigen presentation in the pathogenesis. INFORMATICS IN MEDICINE UNLOCKED 2022. [DOI: 10.1016/j.imu.2021.100831] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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16
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Salt inducible kinases 2 and 3 are required for thymic T cell development. Sci Rep 2021; 11:21550. [PMID: 34732767 PMCID: PMC8566462 DOI: 10.1038/s41598-021-00986-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Accepted: 10/15/2021] [Indexed: 12/22/2022] Open
Abstract
Salt Inducible Kinases (SIKs), of which there are 3 isoforms, are established to play roles in innate immunity, metabolic control and neuronal function, but their role in adaptive immunity is unknown. To address this gap, we used a combination of SIK knockout and kinase-inactive knock-in mice. The combined loss of SIK1 and SIK2 activity did not block T cell development. Conditional knockout of SIK3 in haemopoietic cells, driven by a Vav-iCre transgene, resulted in a moderate reduction in the numbers of peripheral T cells, but normal B cell numbers. Constitutive knockout of SIK2 combined with conditional knockout of SIK3 in the haemopoietic cells resulted in a severe reduction in peripheral T cells without reducing B cell number. A similar effect was seen when SIK3 deletion was driven via CD4-Cre transgene to delete at the DP stage of T cell development. Analysis of the SIK2/3 Vav-iCre mice showed that thymocyte number was greatly reduced, but development was not blocked completely as indicated by the presence of low numbers CD4 and CD8 single positive cells. SIK2 and SIK3 were not required for rearrangement of the TCRβ locus, or for low level cell surface expression of the TCR complex on the surface of CD4/CD8 double positive thymocytes. In the absence of both SIK2 and SIK3, progression to mature single positive cells was greatly reduced, suggesting a defect in negative and/or positive selection in the thymus. In agreement with an effect on negative selection, increased apoptosis was seen in thymic TCRbeta high/CD5 positive cells from SIK2/3 knockout mice. Together, these results show an important role for SIK2 and SIK3 in thymic T cell development.
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17
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Lai KKY, Hu X, Chosa K, Nguyen C, Lin DP, Lai KK, Kato N, Higuchi Y, Highlander SK, Melendez E, Eriguchi Y, Fueger PT, Ouellette AJ, Chimge NO, Ono M, Kahn M. p300 Serine 89: A Critical Signaling Integrator and Its Effects on Intestinal Homeostasis and Repair. Cancers (Basel) 2021; 13:cancers13061288. [PMID: 33799418 PMCID: PMC7999107 DOI: 10.3390/cancers13061288] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Revised: 03/07/2021] [Accepted: 03/10/2021] [Indexed: 12/14/2022] Open
Abstract
Simple Summary Given their high degree of identity and even greater similarity at the amino acid level, Kat3 coactivators, CBP (Kat3A) and p300 (Kat3B), have long been considered redundant. We describe the generation of novel p300 S89A knock-in mice carrying a single site directed amino acid mutation in p300, changing the highly evolutionarily conserved serine 89 to alanine, thus enhancing Wnt/CBP/catenin signaling (at the expense of Wnt/p300/catenin signaling). p300 S89A knock-in mice exhibit multiple organ system, immunologic and metabolic differences, compared with their wild type counterparts. In particular, these p300 S89A knock-in mice are highly sensitive to intestinal injury resulting in colitis which is known to significantly predispose to colorectal cancer. Our results highlight the critical role of this region in p300 as a signaling nexus and provide further evidence that p300 and CBP are non-redundant, playing definite and distinctive roles in development and disease. Abstract Differential usage of Kat3 coactivators, CBP and p300, by β-catenin is a fundamental regulatory mechanism in stem cell maintenance and initiation of differentiation and repair. Based upon our earlier pharmacologic studies, p300 serine 89 (S89) is critical for controlling differential coactivator usage by β-catenin via post-translational phosphorylation in stem/progenitor populations, and appears to be a target for a number of kinase cascades. To further investigate mechanisms of signal integration effected by this domain, we generated p300 S89A knock-in mice. We show that S89A mice are extremely sensitive to intestinal insult resulting in colitis, which is known to significantly increase the risk of developing colorectal cancer. We demonstrate cell intrinsic differences, and microbiome compositional differences and differential immune responses, in intestine of S89A versus wild type mice. Genomic and proteomic analyses reveal pathway differences, including lipid metabolism, oxidative stress response, mitochondrial function and oxidative phosphorylation. The diverse effects on fundamental processes including epithelial differentiation, metabolism, immune response and microbiome colonization, all brought about by a single amino acid modification S89A, highlights the critical role of this region in p300 as a signaling nexus and the rationale for conservation of this residue and surrounding region for hundreds of million years of vertebrate evolution.
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Affiliation(s)
- Keane K. Y. Lai
- Department of Molecular Medicine, Beckman Research Institute of City of Hope, Duarte, CA 91010, USA; (K.K.Y.L.); (X.H.); (K.C.); (C.N.); (D.P.L.); (Y.H.); (E.M.); (N.-O.C.)
- City of Hope Comprehensive Cancer Center, Duarte, CA 91010, USA;
| | - Xiaohui Hu
- Department of Molecular Medicine, Beckman Research Institute of City of Hope, Duarte, CA 91010, USA; (K.K.Y.L.); (X.H.); (K.C.); (C.N.); (D.P.L.); (Y.H.); (E.M.); (N.-O.C.)
| | - Keisuke Chosa
- Department of Molecular Medicine, Beckman Research Institute of City of Hope, Duarte, CA 91010, USA; (K.K.Y.L.); (X.H.); (K.C.); (C.N.); (D.P.L.); (Y.H.); (E.M.); (N.-O.C.)
| | - Cu Nguyen
- Department of Molecular Medicine, Beckman Research Institute of City of Hope, Duarte, CA 91010, USA; (K.K.Y.L.); (X.H.); (K.C.); (C.N.); (D.P.L.); (Y.H.); (E.M.); (N.-O.C.)
| | - David P. Lin
- Department of Molecular Medicine, Beckman Research Institute of City of Hope, Duarte, CA 91010, USA; (K.K.Y.L.); (X.H.); (K.C.); (C.N.); (D.P.L.); (Y.H.); (E.M.); (N.-O.C.)
| | - Keith K. Lai
- Department of Anatomic Pathology, Cleveland Clinic, Cleveland, OH 44195, USA;
| | - Nobuo Kato
- The Institute of Scientific and Industrial Research, Osaka University, Osaka 567-0047, Japan;
| | - Yusuke Higuchi
- Department of Molecular Medicine, Beckman Research Institute of City of Hope, Duarte, CA 91010, USA; (K.K.Y.L.); (X.H.); (K.C.); (C.N.); (D.P.L.); (Y.H.); (E.M.); (N.-O.C.)
| | - Sarah K. Highlander
- Clinical Microbiome Service Center and Pathogen and Microbiome Division, Translational Genomics Research Institute, Flagstaff, AZ 86005, USA;
| | - Elizabeth Melendez
- Department of Molecular Medicine, Beckman Research Institute of City of Hope, Duarte, CA 91010, USA; (K.K.Y.L.); (X.H.); (K.C.); (C.N.); (D.P.L.); (Y.H.); (E.M.); (N.-O.C.)
| | - Yoshihiro Eriguchi
- Department of Pathology and Laboratory Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA; (Y.E.); (A.J.O.)
| | - Patrick T. Fueger
- City of Hope Comprehensive Cancer Center, Duarte, CA 91010, USA;
- Department of Molecular and Cellular Endocrinology, Beckman Research Institute of City of Hope, Duarte, CA 91010, USA
| | - Andre J. Ouellette
- Department of Pathology and Laboratory Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA; (Y.E.); (A.J.O.)
- USC Norris Comprehensive Cancer Center, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
| | - Nyam-Osor Chimge
- Department of Molecular Medicine, Beckman Research Institute of City of Hope, Duarte, CA 91010, USA; (K.K.Y.L.); (X.H.); (K.C.); (C.N.); (D.P.L.); (Y.H.); (E.M.); (N.-O.C.)
| | - Masaya Ono
- Department of Clinical Proteomics, National Cancer Center Research Institute, Tokyo 104-0045, Japan;
| | - Michael Kahn
- Department of Molecular Medicine, Beckman Research Institute of City of Hope, Duarte, CA 91010, USA; (K.K.Y.L.); (X.H.); (K.C.); (C.N.); (D.P.L.); (Y.H.); (E.M.); (N.-O.C.)
- City of Hope Comprehensive Cancer Center, Duarte, CA 91010, USA;
- USC Norris Comprehensive Cancer Center, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
- Department of Biochemistry and Molecular Biology, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
- Correspondence:
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18
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Wu J, Zhao R, Dai J, Lai G, Khan AU, Yu X, Wu S, Ouyang J, Sang H. Analysis of differential expression of long non‑coding RNAs in exosomes derived from mature and immature dendritic cells. Mol Med Rep 2021; 23:132. [PMID: 33313954 PMCID: PMC7751491 DOI: 10.3892/mmr.2020.11771] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Accepted: 11/09/2020] [Indexed: 12/12/2022] Open
Abstract
Dendritic cells release bioactive exosomes involved in immune regulation. Long non‑coding RNAs (lncRNAs) are implicated in a number of immunoregulatory mechanisms. However, the roles of lncRNAs in dendritic cell‑derived exosomes remain to be elucidated. The present study aimed to investigate the roles of lncRNAs in exosomes derived from mature and immature dendritic cells and to find specific lncRNAs with immunoregulatory function. The expression profiles of lncRNAs in exosomes derived from bone marrow dendritic cells of C57 mice were illustrated. Gene Ontology (GO), Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analyses and Gene Set Enrichment Analysis were performed to identify potential targets correlated with immune regulation. In addition, lncRNA‑miRNA‑mRNA networks were predicted using bioinformatics methods. Representative lncRNAs were further validated via reverse transcription‑quantitative PCR. A total of 437 lncRNAs were analyzed using RNA‑seq. Among these, the expression of ~87 lncRNAs was upregulated and 21 lncRNAs was downregulated in mature dendritic cell‑derived exosomes (Dex) compared with immature Dex. GO analyses indicated the involvement of upregulated lncRNAs in multiple biological functions, such as the immune system process, while downregulated lncRNAs were involved in poly(A) RNA binding. Analysis of the KEGG pathway identified the relationship of TNF signaling and ribosome pathway with upregulated lncRNAs and downregulated lncRNAs, respectively. The results of gene set enrichment analysis identified that three lncRNA‑associated transcripts (Procr‑203, Clec4e‑202 and Traf1‑203) were highly associated with immunoregulatory functions including T helper cell differentiation and Janus kinase‑STAT signaling pathway. The results indicated the involvement of candidate lncRNAs in immunoregulation and suggested a new perspective on the modulation of lncRNAs in Dex.
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Affiliation(s)
- Jiachang Wu
- Department of Orthopedic Surgery, Shenzhen Hospital of Southern Medical University, Shenzhen, Guangdong 518000, P.R. China
- The Third School of Clinical Medicine, Southern Medical University, Guangzhou, Guangdong 510515, P.R. China
| | - Renli Zhao
- Department of Orthopedic Surgery, Shenzhen Hospital of Southern Medical University, Shenzhen, Guangdong 518000, P.R. China
- The Third School of Clinical Medicine, Southern Medical University, Guangzhou, Guangdong 510515, P.R. China
| | - Jingxing Dai
- Department of Anatomy, School of Basic Medical Sciences, Southern Medical University, Guangdong Provincial Medical Biomechanical Key Laboratory, Guangzhou, Guangdong 510515, P.R. China
| | - Guohua Lai
- Department of Orthopedic Surgery, Shenzhen Hospital of Southern Medical University, Shenzhen, Guangdong 518000, P.R. China
- The Third School of Clinical Medicine, Southern Medical University, Guangzhou, Guangdong 510515, P.R. China
| | - Asmat Ullah Khan
- Department of Anatomy, School of Basic Medical Sciences, Southern Medical University, Guangdong Provincial Medical Biomechanical Key Laboratory, Guangzhou, Guangdong 510515, P.R. China
| | - Xiao Yu
- Department of Immunology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, Guangdong 510515, P.R. China
| | - Sha Wu
- Department of Immunology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, Guangdong 510515, P.R. China
| | - Jun Ouyang
- Department of Anatomy, School of Basic Medical Sciences, Southern Medical University, Guangdong Provincial Medical Biomechanical Key Laboratory, Guangzhou, Guangdong 510515, P.R. China
| | - Hongxun Sang
- Department of Orthopedic Surgery, Shenzhen Hospital of Southern Medical University, Shenzhen, Guangdong 518000, P.R. China
- The Third School of Clinical Medicine, Southern Medical University, Guangzhou, Guangdong 510515, P.R. China
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19
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CREB Coactivator CRTC2 Plays a Crucial Role in Endothelial Function. J Neurosci 2020; 40:9533-9546. [PMID: 33127851 DOI: 10.1523/jneurosci.0407-20.2020] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2020] [Revised: 10/20/2020] [Accepted: 10/22/2020] [Indexed: 11/21/2022] Open
Abstract
The cAMP pathway is known to stabilize endothelial barrier function and maintain vascular physiology. The family of cAMP-response element binding (CREB)-regulated transcription coactivators (CRTC)1-3 activate transcription by targeting the basic leucine zipper domain of CREB. CRTC2 is a master regulator of glucose metabolism in liver and adipose tissue. However, the role of CRTC2 in endothelium remains unknown. The aim of this study was to evaluate the effect of CRTC2 on endothelial function. We focused the effect of CRTC2 in endothelial cells and its relationship with p190RhoGAP-A. We examined the effect of CRTC2 on endothelial function using a mouse aorta ring assay ex vivo and with photothrombotic stroke in endothelial cell-specific CRTC2-knock-out male mice in vivo CRTC2 was highly expressed in endothelial cells and related to angiogenesis. Among CRTC1-3, only CRTC2 was activated under ischemic conditions at endothelial cells, and CRTC2 maintained endothelial barrier function through p190RhoGAP-A expression. Ser171 was a pivotal regulatory site for CRTC2 intracellular localization, and Ser307 functioned as a crucial phosphorylation site. Endothelial cell-specific CRTC2-knock-out mice showed reduced angiogenesis ex vivo, exacerbated stroke via endothelial dysfunction, and impaired neurologic recovery via reduced vascular beds in vivo These findings suggest that CRTC2 plays a crucial protective role in vascular integrity of the endothelium via p190RhoGAP-A under ischemic conditions.SIGNIFICANCE STATEMENT Previously, the role of CRTC2 in endothelial cells was unknown. In this study, we firstly clarified that CRTC2 was expressed in endothelial cells and among CRTC1-3, only CRTC2 was related to endothelial function. Most importantly, only CRTC2 was activated under ischemic conditions at endothelial cells and maintained endothelial barrier function through p190RhoGAP-A expression. Ser307 in CRTC2 functioned as a crucial phosphorylation site. Endothelial cell-specific CRTC2-knock-out mice showed reduced angiogenesis ex vivo, exacerbated stroke via endothelial dysfunction, and impaired neurologic recovery via reduced vascular beds in vivo These results suggested that CRTC2 maybe a potential therapeutic target for reducing blood-brain barrier (BBB) damage and improving recovery.
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20
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Decker CW, Garcia J, Gatchalian K, Arceneaux D, Choi C, Han D, Hernandez JB. Mitofusin-2 mediates doxorubicin sensitivity and acute resistance in Jurkat leukemia cells. Biochem Biophys Rep 2020; 24:100824. [PMID: 33204855 PMCID: PMC7648112 DOI: 10.1016/j.bbrep.2020.100824] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Revised: 09/18/2020] [Accepted: 09/21/2020] [Indexed: 12/17/2022] Open
Abstract
Mitochondria oscillate along a morphological continuum from fragmented individual units to hyperfused tubular networks. Their position at the junction of catabolic and anabolic metabolism couples this morphological plasticity, called mitochondrial dynamics, to larger cellular metabolic programs, which in turn implicate mitochondria in a number of disease states. In many cancers, fragmented mitochondria engage the cell with the biosynthetic capacity of aerobic glycolysis in service of proliferation and progression. Chemo-resistant cancers, however, favor remodeling dynamics that yield fused mitochondrial assemblies utilizing oxidative phosphorylation (OXPHOS) through the electron transport chain (ETC). In this study, expression of Mitofusin-2 (MFN-2), a GTPase protein mediator of mitochondrial fusion, was found to closely correlate to Jurkat leukemia cell survival post doxorubicin (DxR) assault. Moreover, this was accompanied by dramatically increased expression of OXPHOS respiratory complexes and ATP Synthase, as well as a commensurate escalation of state III respiration and respiratory control ratio (RCR). Importantly, CRISPR knockout of MFN-2 resulted in a considerable decrease of doxorubicin (DxR) median lethal dose compared to a treated wildtype control, suggesting an important role of mitochondrial fusion in chemotherapy sensitivity and acute resistance. Doxorubicin induces mitochondrial fusion in surviving jurkat cells Fused mitochondria in surviving cells increase respiration and mitochondria coupling Mitofusin-2 knockout sensitizes cells to doxorubicin
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Affiliation(s)
- Carl W Decker
- Keck Graduate Institute, Henry E. Riggs School of Applied Life Sciences, 535 Watson Drive, Claremont, CA, 91711, USA
| | - Jerome Garcia
- University of La Verne, Department of Biology, 1950 3rd Street, La Verne, CA, 91750, USA
| | - Kristelle Gatchalian
- Keck Graduate Institute, Henry E. Riggs School of Applied Life Sciences, 535 Watson Drive, Claremont, CA, 91711, USA
| | | | - Clarice Choi
- Keck Graduate Institute, Henry E. Riggs School of Applied Life Sciences, 535 Watson Drive, Claremont, CA, 91711, USA
| | - Derick Han
- Keck Graduate Institute, Department of Pharmaceutical Sciences, School of Pharmacy and Health Sciences, 535 Watson Drive, Claremont, CA, 91711, USA
| | - Jeniffer B Hernandez
- Keck Graduate Institute, Department of Pharmaceutical Sciences, School of Pharmacy and Health Sciences, 535 Watson Drive, Claremont, CA, 91711, USA
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Vigano S, Alatzoglou D, Irving M, Ménétrier-Caux C, Caux C, Romero P, Coukos G. Targeting Adenosine in Cancer Immunotherapy to Enhance T-Cell Function. Front Immunol 2019; 10:925. [PMID: 31244820 PMCID: PMC6562565 DOI: 10.3389/fimmu.2019.00925] [Citation(s) in RCA: 261] [Impact Index Per Article: 52.2] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2019] [Accepted: 04/10/2019] [Indexed: 12/13/2022] Open
Abstract
T cells play a critical role in cancer control, but a range of potent immunosuppressive mechanisms can be upregulated in the tumor microenvironment (TME) to abrogate their activity. While various immunotherapies (IMTs) aiming at re-invigorating the T-cell-mediated anti-tumor response, such as immune checkpoint blockade (ICB), and the adoptive cell transfer (ACT) of natural or gene-engineered ex vivo expanded tumor-specific T cells, have led to unprecedented clinical responses, only a small proportion of cancer patients benefit from these treatments. Important research efforts are thus underway to identify biomarkers of response, as well as to develop personalized combinatorial approaches that can target other inhibitory mechanisms at play in the TME. In recent years, adenosinergic signaling has emerged as a powerful immuno-metabolic checkpoint in tumors. Like several other barriers in the TME, such as the PD-1/PDL-1 axis, CTLA-4, and indoleamine 2,3-dioxygenase (IDO-1), adenosine plays important physiologic roles, but has been co-opted by tumors to promote their growth and impair immunity. Several agents counteracting the adenosine axis have been developed, and pre-clinical studies have demonstrated important anti-tumor activity, alone and in combination with other IMTs including ICB and ACT. Here we review the regulation of adenosine levels and mechanisms by which it promotes tumor growth and broadly suppresses protective immunity, with extra focus on the attenuation of T cell function. Finally, we present an overview of promising pre-clinical and clinical approaches being explored for blocking the adenosine axis for enhanced control of solid tumors.
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Affiliation(s)
- Selena Vigano
- Department of Oncology, Ludwig Institute for Cancer Research Lausanne, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland
| | - Dimitrios Alatzoglou
- Department of Oncology, Ludwig Institute for Cancer Research Lausanne, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland
| | - Melita Irving
- Department of Oncology, Ludwig Institute for Cancer Research Lausanne, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland
| | - Christine Ménétrier-Caux
- Department of Immunology Virology and Inflammation, INSERM 1052, CNRS 5286, Léon Bérard Cancer Center, Cancer Research Center of Lyon, University of Lyon, University Claude Bernard Lyon 1, Lyon, France
| | - Christophe Caux
- Department of Immunology Virology and Inflammation, INSERM 1052, CNRS 5286, Léon Bérard Cancer Center, Cancer Research Center of Lyon, University of Lyon, University Claude Bernard Lyon 1, Lyon, France
| | - Pedro Romero
- Department of Oncology, University of Lausanne, Lausanne, Switzerland
| | - George Coukos
- Department of Oncology, Ludwig Institute for Cancer Research Lausanne, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland
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Bartolotti N, Lazarov O. CREB signals as PBMC-based biomarkers of cognitive dysfunction: A novel perspective of the brain-immune axis. Brain Behav Immun 2019; 78:9-20. [PMID: 30641141 PMCID: PMC6488430 DOI: 10.1016/j.bbi.2019.01.004] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/04/2018] [Revised: 12/21/2018] [Accepted: 01/10/2019] [Indexed: 12/26/2022] Open
Abstract
To date, there is no reliable biomarker for the assessment or determination of cognitive dysfunction in Alzheimer's disease and related dementia. Such a biomarker would not only aid in diagnostics, but could also serve as a measure of therapeutic efficacy. It is widely acknowledged that the hallmarks of Alzheimer's disease, namely, amyloid deposits and neurofibrillary tangles, as well as their precursors and metabolites, are poorly correlated with cognitive function and disease stage and thus have low diagnostic or prognostic value. A lack of biomarkers is one of the major roadblocks in diagnosing the disease and in assessing the efficacy of potential therapies. The phosphorylation of cAMP Response Element Binding protein (pCREB) plays a major role in memory acquisition and consolidation. In the brain, CREB activation by phosphorylation at Ser133 and the recruitment of transcription cofactors such as CREB binding protein (CBP) is a critical step for the formation of memory. This set of processes is a prerequisite for the transcription of genes thought to be important for synaptic plasticity, such as Egr-1. Interestingly, recent work suggests that the expression of pCREB in peripheral blood mononuclear cells (PBMC) positively correlates with pCREB expression in the postmortem brain of Alzheimer's patients, suggesting not only that pCREB expression in PBMC might serve as a biomarker of cognitive dysfunction, but also that the dysfunction of CREB signaling may not be limited to the brain in AD, and that a link may exist between the regulation of CREB in the blood and in the brain. In this review we consider the evidence suggesting a correlation between the level of CREB signals in the brain and blood, the current knowledge about CREB in PBMC and its association with CREB in the brain, and the implications and mechanisms for a neuro-immune cross talk that may underlie this communication. This Review will discuss the possibility that peripheral dysregulation of CREB is an early event in AD pathogenesis, perhaps as a facet of immune system dysfunction, and that this impairment in peripheral CREB signaling modifies CREB signaling in the brain, thus exacerbating cognitive decline in AD. A more thorough understanding of systemic dysregulation of CREB in AD will facilitate the search for a biomarker of cognitive function in AD, and also aid in the understanding of the mechanisms underlying cognitive decline in AD.
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Affiliation(s)
- Nancy Bartolotti
- Department of Anatomy and Cell Biology, College of Medicine, The University of Illinois at Chicago, Chicago, IL 60612, USA
| | - Orly Lazarov
- Department of Anatomy and Cell Biology, College of Medicine, The University of Illinois at Chicago, Chicago, IL 60612, USA.
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Yao C, Narumiya S. Prostaglandin-cytokine crosstalk in chronic inflammation. Br J Pharmacol 2019; 176:337-354. [PMID: 30381825 PMCID: PMC6329627 DOI: 10.1111/bph.14530] [Citation(s) in RCA: 133] [Impact Index Per Article: 26.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2018] [Revised: 10/13/2018] [Accepted: 10/17/2018] [Indexed: 12/28/2022] Open
Abstract
Chronic inflammation underlies various debilitating disorders including autoimmune, neurodegenerative, vascular and metabolic diseases as well as cancer, where aberrant activation of the innate and acquired immune systems is frequently seen. Since non-steroidal anti-inflammatory drugs exert their effects by inhibiting COX and suppressing PG biosynthesis, PGs have been traditionally thought to function mostly as mediators of acute inflammation. However, an inducible COX isoform, COX-2, is often highly expressed in tissues of the chronic disorders, suggesting an as yet unidentified role of PGs in chronic inflammation. Recent studies have shown that in addition to their short-lived actions in acute inflammation, PGs crosstalk with cytokines and amplify the cytokine actions on various types of inflammatory cells and drive pathogenic conversion of these cells by critically regulating their gene expression. One mode of such PG-mediated amplification is to induce the expression of relevant cytokine receptors, which is typically observed in Th1 cell differentiation and Th17 cell expansion, events leading to chronic immune inflammation. Another mode of amplification is cooperation of PGs with cytokines at the transcription level. Typically, PGs and cytokines synergistically activate NF-κB to induce the expression of inflammation-related genes, one being COX-2 itself, which makes PG-mediated positive feedback loops. This signalling consequently enhances the expression of various NF-κB-induced genes including chemokines to macrophages and neutrophils, which enables sustained infiltration of these cells and further amplifies chronic inflammation. In addition, PGs are also involved in tissue remodelling such as fibrosis and angiogenesis. In this article, we review these findings and discuss their relevance to human diseases.
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Affiliation(s)
- Chengcan Yao
- Centre for Inflammation Research, Queen's Medical Research InstituteThe University of EdinburghEdinburghUK
| | - Shuh Narumiya
- Alliance Laboratory for Advanced Medical Research and Department of Drug Discovery Medicine, Medical Innovation CenterKyoto University Graduate School of MedicineKyotoJapan
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24
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Lee J, Aoki T, Thumkeo D, Siriwach R, Yao C, Narumiya S. T cell-intrinsic prostaglandin E 2-EP2/EP4 signaling is critical in pathogenic T H17 cell-driven inflammation. J Allergy Clin Immunol 2019; 143:631-643. [PMID: 29935220 PMCID: PMC6354914 DOI: 10.1016/j.jaci.2018.05.036] [Citation(s) in RCA: 72] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2017] [Revised: 05/03/2018] [Accepted: 05/25/2018] [Indexed: 12/20/2022]
Abstract
BACKGROUND IL-23 is the key cytokine for generation of pathogenic IL-17-producing helper T (TH17) cells, which contribute critically to autoimmune diseases. However, how IL-23 generates pathogenic TH17 cells remains to be elucidated. OBJECTIVES We sought to examine the involvement, molecular mechanisms, and clinical implications of prostaglandin (PG) E2-EP2/EP4 signaling in induction of IL-23-driven pathogenic TH17 cells. METHODS The role of PGE2 in induction of pathogenic TH17 cells was investigated in mouse TH17 cells in culture in vitro and in an IL-23-induced psoriasis mouse model in vivo. Clinical relevance of the findings in mice was examined by using gene expression profiling of IL-23 and PGE2-EP2/EP4 signaling in psoriatic skin from patients. RESULTS IL-23 induces Ptgs2, encoding COX2 in TH17 cells, and produces PGE2, which acts back on the PGE receptors EP2 and EP4 in these cells and enhances IL-23-induced expression of an IL-23 receptor subunit gene, Il23r, by activating signal transducer and activator of transcription (STAT) 3, cAMP-responsive element binding protein 1, and nuclear factor κ light chain enhancer of activated B cells (NF-κB) through cyclic AMP-protein kinase A signaling. This PGE2 signaling also induces expression of various inflammation-related genes, which possibly function in TH17 cell-mediated pathology. Combined deletion of EP2 and EP4 selectively in T cells suppressed accumulation of IL-17A+ and IL-17A+IFN-γ+ pathogenic Th17 cells and abolished skin inflammation in an IL-23-induced psoriasis mouse model. Analysis of human psoriatic skin biopsy specimens shows positive correlation between PGE2 signaling and the IL-23/TH17 pathway. CONCLUSIONS T cell-intrinsic EP2/EP4 signaling is critical in IL-23-driven generation of pathogenic TH17 cells and consequent pathogenesis in the skin.
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MESH Headings
- Animals
- Cells, Cultured
- Cyclic AMP/metabolism
- Dinoprostone/metabolism
- Disease Models, Animal
- Gene Expression Profiling
- Humans
- Imiquimod
- Inflammation/immunology
- Interleukin-23/metabolism
- Mice
- Mice, Inbred C57BL
- Mice, Knockout
- Psoriasis/immunology
- Receptors, Prostaglandin E, EP2 Subtype/genetics
- Receptors, Prostaglandin E, EP2 Subtype/metabolism
- Receptors, Prostaglandin E, EP4 Subtype/genetics
- Receptors, Prostaglandin E, EP4 Subtype/metabolism
- Signal Transduction
- Th17 Cells/immunology
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Affiliation(s)
- Jinju Lee
- Core Research for Evolutional Science and Technology (CREST), Medical Innovation Center, Kyoto, Japan; Kyoto University, Graduate School of Biostudies, Kyoto, Japan
| | - Tomohiro Aoki
- Core Research for Evolutional Science and Technology (CREST), Medical Innovation Center, Kyoto, Japan; Center for Innovation in Immunoregulation Technology and Therapeutics, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Dean Thumkeo
- Core Research for Evolutional Science and Technology (CREST), Medical Innovation Center, Kyoto, Japan; Center for Innovation in Immunoregulation Technology and Therapeutics, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Ratklao Siriwach
- Center for Innovation in Immunoregulation Technology and Therapeutics, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Chengcan Yao
- Medical Research Council (MRC) Centre for Inflammation Research, Queen's Medical Research Institute, University of Edinburgh, Edinburgh, United Kingdom.
| | - Shuh Narumiya
- Core Research for Evolutional Science and Technology (CREST), Medical Innovation Center, Kyoto, Japan; Center for Innovation in Immunoregulation Technology and Therapeutics, Kyoto University Graduate School of Medicine, Kyoto, Japan.
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Tasoulas J, Rodon L, Kaye FJ, Montminy M, Amelio AL. Adaptive Transcriptional Responses by CRTC Coactivators in Cancer. Trends Cancer 2019; 5:111-127. [PMID: 30755304 DOI: 10.1016/j.trecan.2018.12.002] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2018] [Revised: 12/03/2018] [Accepted: 12/07/2018] [Indexed: 01/09/2023]
Abstract
Adaptive stress signaling networks directly influence tumor development and progression. These pathways mediate responses that allow cancer cells to cope with both tumor cell-intrinsic and cell-extrinsic insults and develop acquired resistance to therapeutic interventions. This is mediated in part by constant oncogenic rewiring at the transcriptional level by integration of extracellular cues that promote cell survival and malignant transformation. The cAMP-regulated transcriptional coactivators (CRTCs) are a newly discovered family of intracellular signaling integrators that serve as the conduit to the basic transcriptional machinery to regulate a host of adaptive response genes. Thus, somatic alterations that lead to CRTC activation are emerging as key driver events in the development and progression of many tumor subtypes.
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Affiliation(s)
- Jason Tasoulas
- Lineberger Comprehensive Cancer Center, UNC School of Medicine, The University of North Carolina at Chapel Hill, Chapel Hill, NC, USA; These authors contributed equally
| | - Laura Rodon
- Peptide Biology Laboratories, Salk Institute, La Jolla, CA, USA; These authors contributed equally
| | - Frederic J Kaye
- Department of Medicine, College of Medicine, University of Florida, Gainesville, FL, USA; UF Health Cancer Center, University of Florida, Gainesville, FL, USA
| | - Marc Montminy
- Peptide Biology Laboratories, Salk Institute, La Jolla, CA, USA
| | - Antonio L Amelio
- Department of Oral and Craniofacial Health Sciences, UNC School of Dentistry, The University of North Carolina at Chapel Hill, Chapel Hill, NC, USA; Lineberger Comprehensive Cancer Center, Cancer Cell Biology Program, UNC School of Medicine, The University of North Carolina at Chapel Hill, Chapel Hill, NC, USA.
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26
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Kim KM, Jeon WJ, Kim EJ, Jang WG. CRTC2 suppresses BMP2-induced osteoblastic differentiation via Smurf1 expression in MC3T3-E1 cells. Life Sci 2018; 214:70-76. [PMID: 30449452 DOI: 10.1016/j.lfs.2018.10.052] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2018] [Revised: 10/18/2018] [Accepted: 10/25/2018] [Indexed: 12/14/2022]
Abstract
AIMS CREB (cAMP response element-binding protein)-regulated transcription coactivator (CRTC2) has been reported to act as a coactivator of CREB during gluconeogenesis. The role of CRTC2 in osteoblastic differentiation has not yet been elucidated. The aim of this study is to identify the mechanism of CRTC2 in osteoblast differentiation. MAIN METHODS The mRNA expression was determined by RT-PCR and qPCR. Protein levels were measured using Western blot assay. Alkaline phosphatase (ALP) staining was performed to evaluate ALP activity. Alizarin red S (ARS) staining was performed to measure extracellular mineralization. Transcriptional activity was detected using a luciferase assay. KEY FINDINGS In the present study, TNF-α was found to stimulate CRTC2 expression. However, TNF-α did not increase the gene expression of osteoblast differentiation markers and inhibited BMP2-induced osteoblastic differentiation. Overexpression of CRTC2 decreased the expression of osteogenic genes, ALP activity and extracellular matrix mineralization. Knockdown of CRTC2 restored BMP2-induced osteogenic gene expression and ALP activity. CRTC2 increased Smurf1 mRNA expression, Smurf 1 promoter activity, and protein level. Furthermore, Smurf 1 decreased Smad 1/5/9 protein levels. These results suggest that CRTC2 decreased BMP2-induced osteoblastic differentiation via Smurf 1 expression. SIGNIFICANCE Our results indicate that CRTC2 regulates the expression of Smurf1 in osteoblast differentiation.
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Affiliation(s)
- Kyeong-Min Kim
- Department of Biotechnology, School of Engineering, Daegu University, Gyeongbuk 38453, Republic of Korea; Research Institute of Anti-Aging, Daegu University, Gyeongbuk 38453, Republic of Korea
| | - Wan-Jin Jeon
- Department of Biotechnology, School of Engineering, Daegu University, Gyeongbuk 38453, Republic of Korea; Research Institute of Anti-Aging, Daegu University, Gyeongbuk 38453, Republic of Korea
| | - Eun-Jung Kim
- Research Institute of Anti-Aging, Daegu University, Gyeongbuk 38453, Republic of Korea; Department of Immunology, Kyungpook National University School of Medicine, Daegu 41944, Republic of Korea.
| | - Won-Gu Jang
- Department of Biotechnology, School of Engineering, Daegu University, Gyeongbuk 38453, Republic of Korea; Research Institute of Anti-Aging, Daegu University, Gyeongbuk 38453, Republic of Korea.
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27
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Intestinal Immunomodulatory Cells (T Lymphocytes): A Bridge between Gut Microbiota and Diabetes. Mediators Inflamm 2018; 2018:9830939. [PMID: 29713241 PMCID: PMC5866888 DOI: 10.1155/2018/9830939] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2017] [Revised: 01/10/2018] [Accepted: 01/28/2018] [Indexed: 12/20/2022] Open
Abstract
Diabetes mellitus (DM) is one of the most familiar chronic diseases threatening human health. Recent studies have shown that the development of diabetes is closely related to an imbalance of the gut microbiota. Accordingly, there is increasing interest in how changes in the gut microbiota affect diabetes and its underlying mechanisms. Immunomodulatory cells play important roles in maintaining the normal functioning of the human immune system and in maintaining homeostasis. Intestinal immunomodulatory cells (IICs) are located in the intestinal mucosa and are regarded as an intermediary by which the gut microbiota affects physiological and pathological properties. Diabetes can be regulated by IICs, which act as a bridge linking the gut microbiota and DM. Understanding this bridge role of IICs may clarify the mechanisms by which the gut microbiota contributes to DM. Based on recent research, we summarize this process, thereby providing a basis for further studies of diabetes and other similar immune-related diseases.
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28
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Molecular mechanisms underpinning T helper 17 cell heterogeneity and functions in rheumatoid arthritis. J Autoimmun 2018; 87:69-81. [DOI: 10.1016/j.jaut.2017.12.006] [Citation(s) in RCA: 90] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2017] [Accepted: 12/05/2017] [Indexed: 12/24/2022]
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29
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Pacholewska A, Kraft MF, Gerber V, Jagannathan V. Differential Expression of Serum MicroRNAs Supports CD4⁺ T Cell Differentiation into Th2/Th17 Cells in Severe Equine Asthma. Genes (Basel) 2017; 8:E383. [PMID: 29231896 PMCID: PMC5748701 DOI: 10.3390/genes8120383] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2017] [Revised: 11/21/2017] [Accepted: 12/01/2017] [Indexed: 01/06/2023] Open
Abstract
MicroRNAs (miRNAs) regulate post-transcriptional gene expression and may be exported from cells via exosomes or in partnership with RNA-binding proteins. MiRNAs in body fluids can act in a hormone-like manner and play important roles in disease initiation and progression. Hence, miRNAs are promising candidates as biomarkers. To identify serum miRNA biomarkers in the equine model of asthma we investigated small RNA derived from the serum of 34 control and 37 asthmatic horses. These samples were used for next generation sequencing, novel miRNA identification and differential miRNA expression analysis. We identified 11 significantly differentially expressed miRNAs between case and control horses: eca-miR-128, eca-miR-744, eca-miR-197, eca-miR-103, eca-miR-107a, eca-miR-30d, eca-miR-140-3p, eca-miR-7, eca-miR-361-3p, eca-miR-148b-3p and eca-miR-215. Pathway enrichment using experimentally validated target genes of the human homologous miRNAs showed a significant enrichment in the regulation of epithelial-to-mesenchymal transition (key player in airway remodeling in asthma) and the phosphatidylinositol (3,4,5)-triphosphate (PIP3) signaling pathway (modulator of CD4⁺ T cell maturation and function). Downregulated miR-128 and miR-744 supports a Th2/Th17 type immune response in severe equine asthma.
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Affiliation(s)
- Alicja Pacholewska
- Department of Clinical Veterinary Medicine, Swiss Institute of Equine Medicine, Vetsuisse Faculty, University of Bern and Agroscope, Länggassstrasse 124, 3012 Bern, Switzerland.
- Department of Clinical Research and Veterinary Public Health, Institute of Genetics, Vetsuisse Faculty, University of Bern, Bremgartenstrasse 109A, 3012 Bern, Switzerland.
| | - Matthias F Kraft
- Department of Clinical Veterinary Medicine, Swiss Institute of Equine Medicine, Vetsuisse Faculty, University of Bern and Agroscope, Länggassstrasse 124, 3012 Bern, Switzerland.
- Department of Clinical Research and Veterinary Public Health, Institute of Genetics, Vetsuisse Faculty, University of Bern, Bremgartenstrasse 109A, 3012 Bern, Switzerland.
| | - Vincent Gerber
- Department of Clinical Veterinary Medicine, Swiss Institute of Equine Medicine, Vetsuisse Faculty, University of Bern and Agroscope, Länggassstrasse 124, 3012 Bern, Switzerland.
| | - Vidhya Jagannathan
- Department of Clinical Research and Veterinary Public Health, Institute of Genetics, Vetsuisse Faculty, University of Bern, Bremgartenstrasse 109A, 3012 Bern, Switzerland.
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30
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Grassi E, Mariella E, Forneris M, Marotta F, Catapano M, Molineris I, Provero P. A functional strategy to characterize expression Quantitative Trait Loci. Hum Genet 2017; 136:1477-1487. [PMID: 29101457 DOI: 10.1007/s00439-017-1849-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2017] [Accepted: 09/20/2017] [Indexed: 02/08/2023]
Abstract
The study of genetic variation has been revolutionized by the advent of high-throughput technologies able to determine the complete genomic sequence of thousands of individuals. Understanding the functional relevance of variants is, however, still a difficult task, especially when focusing on non-coding variants. Most of the variants associated with disease by Genome-Wide Association Studies (GWAS) are indeed non-coding, and presumably exert their effects by altering gene regulation. Expression Quantitative Trait Loci (eQTL) studies represent an important step in understanding the functional relevance of regulatory variants. We propose a new strategy to detect and characterize eQTLs, based on the effect of variants on the Total Binding Affinity (TBA) profiles of regulatory regions. Using a large dataset of coupled genome and expression data, we show that TBA-based inference allows the identification of eQTLs not revealed by traditional methods and helps in their interpretation in terms of altered transcription factor binding.
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Affiliation(s)
- Elena Grassi
- Department of Molecular Biotechnology and Health Sciences, Molecular Biotechnology Center, University of Turin, Turin, Italy
| | - Elisa Mariella
- Department of Molecular Biotechnology and Health Sciences, Molecular Biotechnology Center, University of Turin, Turin, Italy
| | - Mattia Forneris
- Department of Molecular Biotechnology and Health Sciences, Molecular Biotechnology Center, University of Turin, Turin, Italy.,Genome Biology Unit, European Molecular Biology Laboratory, Heidelberg, Germany
| | - Federico Marotta
- Department of Molecular Biotechnology and Health Sciences, Molecular Biotechnology Center, University of Turin, Turin, Italy
| | - Marika Catapano
- Department of Molecular Biotechnology and Health Sciences, Molecular Biotechnology Center, University of Turin, Turin, Italy.,Deptartment of Medical and Molecular Genetics, King's College, London, UK
| | - Ivan Molineris
- Center for Translational Genomics and Bioinformatics, San Raffaele Scientific Institute IRCCS, Milan, Italy
| | - Paolo Provero
- Department of Molecular Biotechnology and Health Sciences, Molecular Biotechnology Center, University of Turin, Turin, Italy. .,Center for Translational Genomics and Bioinformatics, San Raffaele Scientific Institute IRCCS, Milan, Italy.
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31
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Cyclic AMP-Responsive Element-Binding Protein (CREB) is Critical in Autoimmunity by Promoting Th17 but Inhibiting Treg Cell Differentiation. EBioMedicine 2017; 25:165-174. [PMID: 29050947 PMCID: PMC5704088 DOI: 10.1016/j.ebiom.2017.10.010] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2016] [Revised: 09/30/2017] [Accepted: 10/09/2017] [Indexed: 12/12/2022] Open
Abstract
The molecular mechanisms that govern differential T cell development into pro-inflammatory Th17 vs. regulatory T (Treg) cells remain unclear. Here, we show that selective deletion of CREB in T cells or Th17 cells impaired Th17 cell differentiation in vitro and in vivo, and led to resistance to autoimmune diseases. Mechanistically, CREB, activated by CD3-PKC-ϴ signaling, plays a key role in regulating Th17 cell differentiation, at least in part through directly binding to the Il17-Il17f gene locus. Unexpectedly, although dispensable for FOXP3 expression and for the homeostasis and suppressive function of thymus-derived Treg cells, CREB negatively regulates the survival of TGF-β-induced Treg cells, and deletion of CREB resulted in increased FOXP3 + Treg cells in the intestine and protection in a colitis model. Thus, CREB is critical in autoimmune diseases by promoting Th17 cell and inhibiting de novo Treg cell generation. CREB is critical for autoimmunity. CREB plays a T cell- and Th17 cell-instrinsic role in controlling IL-17 expression and Th17 cell differentiation. CREB is dispensable for FOXP3 expression and the homeostasis of nTreg cells. CREB negatively regulates the survival of iTreg cells.
The balance of Th17 and Treg cells dictates development of numerous autoimmune and inflammatory diseases, and targeting Th17 cell-related pathways has been proved to be effective in treatment of related diseases. Here, we identified CREB as a critical transcription factor in regulating the differentiation of Th17 cells and survival of Treg cells in both in vitro experimental systems and mouse models of autoimmune diseases. The findings in this study might be useful for developing therapeutics against Th17 cell-related immune diseases.
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32
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Escoubas CC, Silva-García CG, Mair WB. Deregulation of CRTCs in Aging and Age-Related Disease Risk. Trends Genet 2017; 33:303-321. [PMID: 28365140 DOI: 10.1016/j.tig.2017.03.002] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2016] [Revised: 03/01/2017] [Accepted: 03/02/2017] [Indexed: 12/15/2022]
Abstract
Advances in public health in the past century have seen a sharp increase in human life expectancy. With these changes have come an increased prevalence of age-related pathologies and health burdens in the elderly. Patient age is the biggest risk factor for multiple chronic conditions that often occur simultaneously within a single individual. An alternative to disease-centric therapeutic approaches is that of 'geroscience', which aims to define molecular mechanisms that link age to overall disease risk. One such mechanism is deregulation of CREB-regulated transcriptional coactivators (CRTCs). Initially identified for their role in modulating CREB transcription, the past 5 years has seen an expansion in knowledge of new cellular regulators and roles of CRTCs beyond CREB. CRTCs have been shown to modulate organismal aging in Caenorhabditis elegans and to impact on age-related diseases in humans. We discuss CRTC deregulation as a new driver of aging that integrates the link between age and disease risk.
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Affiliation(s)
- Caroline C Escoubas
- Department of Genetics and Complex Diseases, Harvard T. H. Chan School of Public Health, Harvard University, Boston, MA 02115, USA
| | - Carlos G Silva-García
- Department of Genetics and Complex Diseases, Harvard T. H. Chan School of Public Health, Harvard University, Boston, MA 02115, USA
| | - William B Mair
- Department of Genetics and Complex Diseases, Harvard T. H. Chan School of Public Health, Harvard University, Boston, MA 02115, USA.
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Matsui-Hasumi A, Sato Y, Uto-Konomi A, Yamashita S, Uehori J, Yoshimura A, Yamashita M, Asahara H, Suzuki S, Kubo M. E3 ubiquitin ligases SIAH1/2 regulate hypoxia-inducible factor-1 (HIF-1)-mediated Th17 cell differentiation. Int Immunol 2017; 29:133-143. [DOI: 10.1093/intimm/dxx014] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2017] [Accepted: 03/16/2017] [Indexed: 12/11/2022] Open
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Yoshida N, Comte D, Mizui M, Otomo K, Rosetti F, Mayadas TN, Crispín JC, Bradley SJ, Koga T, Kono M, Karampetsou MP, Kyttaris VC, Tenbrock K, Tsokos GC. ICER is requisite for Th17 differentiation. Nat Commun 2016; 7:12993. [PMID: 27680869 PMCID: PMC5056420 DOI: 10.1038/ncomms12993] [Citation(s) in RCA: 59] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2016] [Accepted: 08/24/2016] [Indexed: 12/25/2022] Open
Abstract
Inducible cAMP early repressor (ICER) has been described as a transcriptional repressor isoform of the cAMP response element modulator (CREM). Here we report that ICER is predominantly expressed in Th17 cells through the IL-6–STAT3 pathway and binds to the Il17a promoter, where it facilitates the accumulation of the canonical enhancer RORγt. In vitro differentiation from naive ICER/CREM-deficient CD4+ T cells to Th17 cells is impaired but can be rescued by forced overexpression of ICER. Consistent with a role of Th17 cells in autoimmune and inflammatory diseases, ICER/CREM-deficient B6.lpr mice are protected from developing autoimmunity. Similarly, both anti-glomerular basement membrane-induced glomerulonephritis and experimental encephalomyelitis are attenuated in ICER/CREM-deficient mice compared with their ICER/CREM-sufficient littermates. Importantly, we find ICER overexpressed in CD4+ T cells from patients with systemic lupus erythematosus. Collectively, our findings identify a unique role for ICER, which affects both organ-specific and systemic autoimmunity in a Th17-dependent manner. ICER is a CREM splice variant that represses CREM/CREB signalling. Here the authors use human cells and mouse models of various autoimmune diseases to show that ICER is central to pathogenic Th17 cell differentiation in autoimmunity.
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Affiliation(s)
- Nobuya Yoshida
- Division of Rheumatology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts 02215, USA
| | - Denis Comte
- Division of Rheumatology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts 02215, USA.,Division of Immunology and Allergy, Centre Hospitalier Universitaire Vaudois, 1011 Lausanne, Switzerland
| | - Masayuki Mizui
- Division of Rheumatology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts 02215, USA
| | - Kotaro Otomo
- Division of Rheumatology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts 02215, USA
| | - Florencia Rosetti
- Center for Excellence in Vascular Biology, Department of Pathology, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts 02215, USA
| | - Tanya N Mayadas
- Center for Excellence in Vascular Biology, Department of Pathology, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts 02215, USA
| | - José C Crispín
- Division of Rheumatology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts 02215, USA
| | - Sean J Bradley
- Division of Rheumatology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts 02215, USA
| | - Tomohiro Koga
- Division of Rheumatology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts 02215, USA
| | - Michihito Kono
- Division of Rheumatology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts 02215, USA
| | - Maria P Karampetsou
- Division of Rheumatology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts 02215, USA
| | - Vasileios C Kyttaris
- Division of Rheumatology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts 02215, USA
| | - Klaus Tenbrock
- Department of Pediatrics, Division of Allergology and Immunology, RWTH University of Aachen, 52056 Aachen, Germany
| | - George C Tsokos
- Division of Rheumatology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts 02215, USA
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Sándor K, Daniel B, Kiss B, Kovács F, Szondy Z. Transcriptional control of transglutaminase 2 expression in mouse apoptotic thymocytes. BIOCHIMICA ET BIOPHYSICA ACTA-GENE REGULATORY MECHANISMS 2016; 1859:964-74. [PMID: 27262403 DOI: 10.1016/j.bbagrm.2016.05.011] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 02/23/2016] [Revised: 05/20/2016] [Accepted: 05/31/2016] [Indexed: 01/06/2023]
Abstract
Transglutaminase 2 (TGM2) is a ubiquitously expressed multifunctional protein, which participates in various biological processes including thymocyte apoptosis. As a result, the transcriptional regulation of the gene is complex and must depend on the cell type. Previous studies from our laboratory have shown that in dying thymocytes the expression of Tgm2 is induced by external signals derived from engulfing macrophages, such as retinoids, transforming growth factor (TGF)-β and adenosine, the latter triggering the adenylate cyclase signaling pathway. The existence of TGF-β and retinoid responsive elements in the promoter region of Tgm2 has already been reported, but the intergenic regulatory elements participating in the regulation of Tgm2 have not yet been identified. Here we used publicly available results from DNase I hypersensitivity analysis followed by deep sequencing and chromatin immunoprecipitation followed by deep sequencing against CCCTC-binding factor (CTCF), H3K4me3, H3K4me1 and H3K27ac to map a putative regulatory element set for Tgm2 in thymocytes. By measuring eRNA expressions of these putative enhancers in retinoid, rTGF-β or dibutiryl cAMP-exposed thymocytes we determined which of them are functional. By applying ChIP-qPCR against SMAD4, retinoic acid receptor, retinoid X receptor, cAMP response element binding protein, P300 and H3K27ac under the same conditions, we identified two enhancers of Tgm2, which seem to act as integrators of the TGF-β, retinoid and adenylate cyclase signaling pathways in dying thymocytes. Our study describes a novel strategy to identify and characterize the signal-specific functional enhancer set of a gene by integrating genome-wide datasets and measuring the production of enhancer specific RNA molecules.
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Affiliation(s)
- Katalin Sándor
- Division of Dental Biochemistry, Signaling and Apoptosis Research Group, Department of Biochemistry and Molecular Biology, University of Debrecen, Nagyerdei krt.98., Debrecen H-4012, Hungary
| | - Bence Daniel
- Nuclear Receptor Research Group, Research Center of Molecular Medicine, Department of Biochemistry and Molecular Biology, University of Debrecen, Nagyerdei krt. 98, Debrecen H-4012, Hungary
| | - Bea Kiss
- Division of Dental Biochemistry, Signaling and Apoptosis Research Group, Department of Biochemistry and Molecular Biology, University of Debrecen, Nagyerdei krt.98., Debrecen H-4012, Hungary
| | - Fruzsina Kovács
- Division of Dental Biochemistry, Signaling and Apoptosis Research Group, Department of Biochemistry and Molecular Biology, University of Debrecen, Nagyerdei krt.98., Debrecen H-4012, Hungary
| | - Zsuzsa Szondy
- Division of Dental Biochemistry, Signaling and Apoptosis Research Group, Department of Biochemistry and Molecular Biology, University of Debrecen, Nagyerdei krt.98., Debrecen H-4012, Hungary.
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Rothaug M, Becker-Pauly C, Rose-John S. The role of interleukin-6 signaling in nervous tissue. BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH 2016; 1863:1218-27. [PMID: 27016501 DOI: 10.1016/j.bbamcr.2016.03.018] [Citation(s) in RCA: 300] [Impact Index Per Article: 37.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 01/19/2016] [Revised: 03/18/2016] [Accepted: 03/21/2016] [Indexed: 12/21/2022]
Abstract
The cytokine interleukin-6 (IL-6) plays a critical role in the pathogenesis of inflammatory disorders and in the physiological homeostasis of neural tissue. Profound neuropathological changes, such as multiple sclerosis (MS), Parkinson's and Alzheimer's disease are associated with increased IL-6 expression in brain. Increased nocturnal concentrations of serum IL-6 are found in patients with impaired sleep whereas IL-6-deficient mice spend more time in rapid eye movement sleep associated with dreaming. IL-6 is crucial in the differentiation of oligodendrocytes, regeneration of peripheral nerves and acts as a neurotrophic factor. It exerts its cellular effects through two distinct pathways which include the anti-inflammatory pathway involving the membrane-bound IL-6 receptor (IL-6R) expressed on selective cells, including microglia, in a process known as classical signaling that is also critical for bacterial defense. In classical signaling binding of IL-6 to the membrane-bound IL-6R activates the β-receptor glycoprotein 130 (gp130) and subsequent down-stream signaling. The alternative, rather pro-inflammatory pathway, shown to mediate neurodegeneration in mice, termed trans-signaling, depends on a soluble form of the IL-6R that is capable of binding IL-6 to stimulate a response on distal cells that express gp130. A naturally occurring soluble form of gp130 (sgp130) has been identified that can specifically bind and neutralize the IL-6R/IL-6 complex. Thus, trans-signaling is blocked but classical signaling is completely unaffected. A modified, recombinant dimerized version of sgp130 (sgp130Fc) has successfully been used to block inflammatory processes in mice and may also be used in the clarification of IL-6 trans-signaling in neurological diseases.
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Affiliation(s)
- Michelle Rothaug
- Institute of Biochemistry, Christian-Albrechts-Universität zu Kiel, Olshausenstrasse 40, D-24098 Kiel, Germany
| | - Christoph Becker-Pauly
- Institute of Biochemistry, Christian-Albrechts-Universität zu Kiel, Olshausenstrasse 40, D-24098 Kiel, Germany
| | - Stefan Rose-John
- Institute of Biochemistry, Christian-Albrechts-Universität zu Kiel, Olshausenstrasse 40, D-24098 Kiel, Germany.
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