1
|
Katikaneni D, Morel L, Scindia Y. Animal models of lupus nephritis: the past, present and a future outlook. Autoimmunity 2024; 57:2319203. [PMID: 38477884 PMCID: PMC10981450 DOI: 10.1080/08916934.2024.2319203] [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: 12/10/2023] [Accepted: 02/11/2024] [Indexed: 03/14/2024]
Abstract
Lupus nephritis (LN) is the most severe end-organ pathology in Systemic Lupus Erythematosus (SLE). Research has enhanced our understanding of immune effectors and inflammatory pathways in LN. However, even with the best available therapy, the rate of complete remission for proliferative LN remains below 50%. A deeper understanding of the resistance or susceptibility of renal cells to injury during the progression of SLE is critical for identifying new targets and developing effective long-term therapies. The complex and heterogeneous nature of LN, combined with the limitations of clinical research, make it challenging to investigate the aetiology of this disease directly in patients. Hence, multiple murine models resembling SLE-driven nephritis are utilised to dissect LN's cellular and genetic mechanisms, identify therapeutic targets, and screen novel compounds. This review discusses commonly used spontaneous and inducible mouse models that have provided insights into pathogenic mechanisms and long-term maintenance therapies in LN.
Collapse
Affiliation(s)
- Divya Katikaneni
- Department of Medicine, University of Florida, Gainesville, Florida, USA
| | - Laurence Morel
- Department of Microbiology, Immunology, and Molecular Genetics, UT Health, San Antonio, Texas, USA
| | - Yogesh Scindia
- Department of Medicine, University of Florida, Gainesville, Florida, USA
- Department of Molecular Genetics and Microbiology, University of Florida, Gainesville, Florida, USA
| |
Collapse
|
2
|
Rael VE, Yano JA, Huizar JP, Slayden LC, Weiss MA, Turcotte EA, Terry JM, Zuo W, Thiffault I, Pastinen T, Farrow EG, Jenkins JL, Becker ML, Wong SC, Stevens AM, Otten C, Allenspach EJ, Bonner DE, Bernstein JA, Wheeler MT, Saxton RA, Liu B, Majer O, Barton GM. Large-scale mutational analysis identifies UNC93B1 variants that drive TLR-mediated autoimmunity in mice and humans. J Exp Med 2024; 221:e20232005. [PMID: 38780621 PMCID: PMC11116816 DOI: 10.1084/jem.20232005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2023] [Revised: 03/21/2024] [Accepted: 04/17/2024] [Indexed: 05/25/2024] Open
Abstract
Nucleic acid-sensing Toll-like receptors (TLR) 3, 7/8, and 9 are key innate immune sensors whose activities must be tightly regulated to prevent systemic autoimmune or autoinflammatory disease or virus-associated immunopathology. Here, we report a systematic scanning-alanine mutagenesis screen of all cytosolic and luminal residues of the TLR chaperone protein UNC93B1, which identified both negative and positive regulatory regions affecting TLR3, TLR7, and TLR9 responses. We subsequently identified two families harboring heterozygous coding mutations in UNC93B1, UNC93B1+/T93I and UNC93B1+/R336C, both in key negative regulatory regions identified in our screen. These patients presented with cutaneous tumid lupus and juvenile idiopathic arthritis plus neuroinflammatory disease, respectively. Disruption of UNC93B1-mediated regulation by these mutations led to enhanced TLR7/8 responses, and both variants resulted in systemic autoimmune or inflammatory disease when introduced into mice via genome editing. Altogether, our results implicate the UNC93B1-TLR7/8 axis in human monogenic autoimmune diseases and provide a functional resource to assess the impact of yet-to-be-reported UNC93B1 mutations.
Collapse
Affiliation(s)
- Victoria E. Rael
- Division of Immunology and Molecular Medicine, Department of Molecular and Cell Biology, University of California, Berkeley, Berkeley, CA, USA
| | - Julian A. Yano
- Division of Immunology and Molecular Medicine, Department of Molecular and Cell Biology, University of California, Berkeley, Berkeley, CA, USA
| | - John P. Huizar
- Division of Immunology and Molecular Medicine, Department of Molecular and Cell Biology, University of California, Berkeley, Berkeley, CA, USA
- Division of Rheumatology, Department of Medicine, University of California, San Francisco, San Francisco, CA, USA
| | - Leianna C. Slayden
- Division of Immunology and Molecular Medicine, Department of Molecular and Cell Biology, University of California, Berkeley, Berkeley, CA, USA
- Howard Hughes Medical Institute, University of California, Berkeley, Berkeley, CA, USA
| | - Madeleine A. Weiss
- Division of Immunology and Molecular Medicine, Department of Molecular and Cell Biology, University of California, Berkeley, Berkeley, CA, USA
| | - Elizabeth A. Turcotte
- Division of Immunology and Molecular Medicine, Department of Molecular and Cell Biology, University of California, Berkeley, Berkeley, CA, USA
| | - Jacob M. Terry
- Division of Immunology and Molecular Medicine, Department of Molecular and Cell Biology, University of California, Berkeley, Berkeley, CA, USA
- Howard Hughes Medical Institute, University of California, Berkeley, Berkeley, CA, USA
| | - Wenqi Zuo
- Division of Immunology and Molecular Medicine, Department of Molecular and Cell Biology, University of California, Berkeley, Berkeley, CA, USA
| | - Isabelle Thiffault
- Department of Pathology and Laboratory Medicine, Children’s Mercy Hospital, Kansas City, MO, USA
- Genomic Medicine Center, Children’s Mercy Hospital, Kansas City, MO, USA
- University of Missouri Kansas City School of Medicine, Kansas City, MO, USA
| | - Tomi Pastinen
- Genomic Medicine Center, Children’s Mercy Hospital, Kansas City, MO, USA
- University of Missouri Kansas City School of Medicine, Kansas City, MO, USA
| | - Emily G. Farrow
- Department of Pathology and Laboratory Medicine, Children’s Mercy Hospital, Kansas City, MO, USA
- Genomic Medicine Center, Children’s Mercy Hospital, Kansas City, MO, USA
- University of Missouri Kansas City School of Medicine, Kansas City, MO, USA
| | - Janda L. Jenkins
- Department of Genetics, Children’s Mercy Hospital, Kansas City, MO, USA
| | - Mara L. Becker
- Division of Rheumatology, Department of Pediatrics, Duke University School of Medicine, Durham, NC, USA
| | - Stephen C. Wong
- Division of Rheumatology, Department of Pediatrics, Seattle Children’s Hospital, Seattle, WA, USA
| | - Anne M. Stevens
- Division of Rheumatology, Department of Pediatrics, Seattle Children’s Hospital, Seattle, WA, USA
- Johnson & Johnson Innovative Medicine, Spring House, PA, USA
- Department of Pediatrics, University of Washington School of Medicine, Seattle, WA, USA
| | - Catherine Otten
- Division of Pediatric Neurology, Department of Neurology, Seattle Children’s Hospital, University of Washington, Seattle, WA, USA
| | - Eric J. Allenspach
- Department of Pediatrics, University of Washington School of Medicine, Seattle, WA, USA
- Center for Immunity and Immunotherapies, Seattle Children’s Research Institute, Seattle, WA, USA
| | - Devon E. Bonner
- Stanford Center for Undiagnosed Diseases, Stanford University, Stanford, CA, USA
- Division of Medical Genetics, Department of Pediatrics, Stanford University School of Medicine, Stanford, CA, USA
| | - Jonathan A. Bernstein
- Stanford Center for Undiagnosed Diseases, Stanford University, Stanford, CA, USA
- Division of Medical Genetics, Department of Pediatrics, Stanford University School of Medicine, Stanford, CA, USA
| | - Matthew T. Wheeler
- Stanford Center for Undiagnosed Diseases, Stanford University, Stanford, CA, USA
- Division of Cardiovascular Medicine, Stanford University School of Medicine, Stanford, CA, USA
| | - Robert A. Saxton
- Division of Immunology and Molecular Medicine, Department of Molecular and Cell Biology, University of California, Berkeley, Berkeley, CA, USA
- Department of Chemistry, University of California, Berkeley, CA, USA
| | - Bo Liu
- Key Laboratory of Immune Response and Immunotherapy, Shanghai Institute of Immunity and Infection, Chinese Academy of Sciences, Shanghai, China
| | - Olivia Majer
- Max Planck Institute for Infection Biology, Berlin, Germany
| | - Gregory M. Barton
- Division of Immunology and Molecular Medicine, Department of Molecular and Cell Biology, University of California, Berkeley, Berkeley, CA, USA
- Howard Hughes Medical Institute, University of California, Berkeley, Berkeley, CA, USA
| |
Collapse
|
3
|
David C, Arango-Franco CA, Badonyi M, Fouchet J, Rice GI, Didry-Barca B, Maisonneuve L, Seabra L, Kechiche R, Masson C, Cobat A, Abel L, Talouarn E, Béziat V, Deswarte C, Livingstone K, Paul C, Malik G, Ross A, Adam J, Walsh J, Kumar S, Bonnet D, Bodemer C, Bader-Meunier B, Marsh JA, Casanova JL, Crow YJ, Manoury B, Frémond ML, Bohlen J, Lepelley A. Gain-of-function human UNC93B1 variants cause systemic lupus erythematosus and chilblain lupus. J Exp Med 2024; 221:e20232066. [PMID: 38869500 PMCID: PMC11176256 DOI: 10.1084/jem.20232066] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2023] [Revised: 03/29/2024] [Accepted: 05/15/2024] [Indexed: 06/14/2024] Open
Abstract
UNC93B1 is a transmembrane domain protein mediating the signaling of endosomal Toll-like receptors (TLRs). We report five families harboring rare missense substitutions (I317M, G325C, L330R, R466S, and R525P) in UNC93B1 causing systemic lupus erythematosus (SLE) or chilblain lupus (CBL) as either autosomal dominant or autosomal recessive traits. As for a D34A mutation causing murine lupus, we recorded a gain of TLR7 and, to a lesser extent, TLR8 activity with the I317M (in vitro) and G325C (in vitro and ex vivo) variants in the context of SLE. Contrastingly, in three families segregating CBL, the L330R, R466S, and R525P variants were isomorphic with respect to TLR7 activity in vitro and, for R525P, ex vivo. Rather, these variants demonstrated a gain of TLR8 activity. We observed enhanced interaction of the G325C, L330R, and R466S variants with TLR8, but not the R525P substitution, indicating different disease mechanisms. Overall, these observations suggest that UNC93B1 mutations cause monogenic SLE or CBL due to differentially enhanced TLR7 and TLR8 signaling.
Collapse
Affiliation(s)
- Clémence David
- Laboratory of Neurogenetics and Neuroinflammation, Imagine Institute, INSERM UMR1163, Paris, France
| | - Carlos A. Arango-Franco
- Laboratory of Human Genetics of Infectious Diseases, INSERM UMR1163, Necker Hospital for Sick Children, Paris, France
- Department of Microbiology and Parasitology, Group of Primary Immunodeficiencies, School of Medicine, University of Antioquia, Medellín, Colombia
| | - Mihaly Badonyi
- MRC Human Genetics Unit, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, UK
| | - Julien Fouchet
- Faculté de Médecine Necker, Institut Necker Enfants Malades, INSERM U1151-CNRS UMR 8253, Université Paris Cité, Paris, France
| | - Gillian I. Rice
- Faculty of Biology, Medicine and Health, Division of Evolution and Genomic Sciences, School of Biological Sciences, Manchester Academic Health Science Centre, University of Manchester, Manchester, UK
| | - Blaise Didry-Barca
- Laboratory of Neurogenetics and Neuroinflammation, Imagine Institute, INSERM UMR1163, Paris, France
| | - Lucie Maisonneuve
- Faculté de Médecine Necker, Institut Necker Enfants Malades, INSERM U1151-CNRS UMR 8253, Université Paris Cité, Paris, France
| | - Luis Seabra
- Laboratory of Neurogenetics and Neuroinflammation, Imagine Institute, INSERM UMR1163, Paris, France
| | - Robin Kechiche
- Laboratory of Neurogenetics and Neuroinflammation, Imagine Institute, INSERM UMR1163, Paris, France
- Department of Paediatric Hematology-Immunology and Rheumatology, Necker-Enfants Malades Hospital, Assistance publique–hôpitaux de Paris (AP-HP), Paris, France
| | - Cécile Masson
- Bioinformatics Core Facility, Université Paris Cité-Structure Fédérative de Recherche Necker, INSERM US24/CNRS UMS3633, Paris, France
| | - Aurélie Cobat
- Laboratory of Human Genetics of Infectious Diseases, INSERM UMR1163, Necker Hospital for Sick Children, Paris, France
- St. Giles Laboratory of Human Genetics of Infectious Diseases, Rockefeller Branch, The Rockefeller University, New York, NY, USA
- Imagine Institute, Université Paris Cité, Paris, France
| | - Laurent Abel
- Laboratory of Human Genetics of Infectious Diseases, INSERM UMR1163, Necker Hospital for Sick Children, Paris, France
- St. Giles Laboratory of Human Genetics of Infectious Diseases, Rockefeller Branch, The Rockefeller University, New York, NY, USA
- Imagine Institute, Université Paris Cité, Paris, France
| | - Estelle Talouarn
- Laboratory of Human Genetics of Infectious Diseases, INSERM UMR1163, Necker Hospital for Sick Children, Paris, France
- Imagine Institute, Université Paris Cité, Paris, France
| | - Vivien Béziat
- Laboratory of Human Genetics of Infectious Diseases, INSERM UMR1163, Necker Hospital for Sick Children, Paris, France
- St. Giles Laboratory of Human Genetics of Infectious Diseases, Rockefeller Branch, The Rockefeller University, New York, NY, USA
- Imagine Institute, Université Paris Cité, Paris, France
| | - Caroline Deswarte
- Laboratory of Human Genetics of Infectious Diseases, INSERM UMR1163, Necker Hospital for Sick Children, Paris, France
- Imagine Institute, Université Paris Cité, Paris, France
| | - Katie Livingstone
- MRC Human Genetics Unit, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, UK
| | - Carle Paul
- Université Toulouse Paul Sabatier, Toulouse, France
| | - Gulshan Malik
- Paediatric Rheumatology, Royal Aberdeen Children’s Hospital, Aberdeen, UK
| | - Alison Ross
- Paediatric Rheumatology, Royal Aberdeen Children’s Hospital, Aberdeen, UK
| | - Jane Adam
- Paediatric Rheumatology, Royal Aberdeen Children’s Hospital, Aberdeen, UK
| | - Jo Walsh
- Department of Paediatric Rheumatology, Royal Hospital for Children, Glasgow, UK
| | - Sathish Kumar
- Department of Pediatrics, Pediatric Rheumatology, Christian Medical College, Vellore, India
| | - Damien Bonnet
- Medical and Surgical Unit of Congenital and Paediatric Cardiology, Reference Centre for Complex Congenital Heart Defects—M3C, University Hospital Necker-Enfants Malades, Paris, France
- Université Paris Cité, Paris, France
| | - Christine Bodemer
- Department of Dermatology, Hospital Necker-Enfants Malades, AP-HP. Université Paris Cité, Paris, France
| | - Brigitte Bader-Meunier
- Department of Paediatric Hematology-Immunology and Rheumatology, Necker-Enfants Malades Hospital, Assistance publique–hôpitaux de Paris (AP-HP), Paris, France
- Centre for Inflammatory Rheumatism, AutoImmune Diseases and Systemic Interferonopathies in Children (RAISE), Paris, France
| | - Joseph A. Marsh
- MRC Human Genetics Unit, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, UK
| | - Jean-Laurent Casanova
- Laboratory of Human Genetics of Infectious Diseases, INSERM UMR1163, Necker Hospital for Sick Children, Paris, France
- St. Giles Laboratory of Human Genetics of Infectious Diseases, Rockefeller Branch, The Rockefeller University, New York, NY, USA
- Imagine Institute, Université Paris Cité, Paris, France
- Howard Hughes Medical Institute, New York, NY, USA
- Department of Pediatrics, Necker Hospital for Sick Children, Paris, France
| | - Yanick J. Crow
- Laboratory of Neurogenetics and Neuroinflammation, Imagine Institute, INSERM UMR1163, Paris, France
- MRC Human Genetics Unit, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, UK
- Université Paris Cité, Paris, France
| | - Bénédicte Manoury
- Faculté de Médecine Necker, Institut Necker Enfants Malades, INSERM U1151-CNRS UMR 8253, Université Paris Cité, Paris, France
| | - Marie-Louise Frémond
- Laboratory of Neurogenetics and Neuroinflammation, Imagine Institute, INSERM UMR1163, Paris, France
- Department of Paediatric Hematology-Immunology and Rheumatology, Necker-Enfants Malades Hospital, Assistance publique–hôpitaux de Paris (AP-HP), Paris, France
- Centre for Inflammatory Rheumatism, AutoImmune Diseases and Systemic Interferonopathies in Children (RAISE), Paris, France
| | - Jonathan Bohlen
- Laboratory of Human Genetics of Infectious Diseases, INSERM UMR1163, Necker Hospital for Sick Children, Paris, France
- Imagine Institute, Université Paris Cité, Paris, France
| | - Alice Lepelley
- Laboratory of Neurogenetics and Neuroinflammation, Imagine Institute, INSERM UMR1163, Paris, France
| |
Collapse
|
4
|
Giannakopoulos B, Krilis SA. Domain 5 of Beta 2 glycoprotein I: Friend or foe in health? Context matters. Clin Immunol 2024:110282. [PMID: 38917928 DOI: 10.1016/j.clim.2024.110282] [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: 06/14/2023] [Revised: 06/03/2024] [Accepted: 06/05/2024] [Indexed: 06/27/2024]
Abstract
Beta 2 glycoprotein I (B2GPI) is the major autoantigen in the antiphospholipid syndrome, an autoimmune disorder characterized by thrombotic and obstetric complications. The autoantibodies that target beta 2 glycoprotein I are pathogenic and contribute to disease pathogenesis. The B2GPImolecule is composed of 5 domains that are numbered 1 through to 5. Autoantibodies bind mainly to domain 1 whereas the majority of the biological functions of the B2GPI molecule in diverse processes such as apoptotic cell clearance, complement regulation, lipopolysaccharide clearance, and anticoagulation have been localised to domain 5 and its unique biochemistry which is reviewed in this review article. The role of purified domain 5 peptide as a potential therapeutic agent in APS and ischemia reperfusion injury is discussed.
Collapse
Affiliation(s)
- Bill Giannakopoulos
- Faculty of Medicine and Health, University of New South Wales, St George and Sutherland Campus, Level 2, Pitney Building, Kogarah, Sydney, NSW 2217, Australia; Department of Rheumatology, St George Public Hospital, Kogarah, Sydney, 2217, Australia.
| | - Steven A Krilis
- Faculty of Medicine and Health, University of New South Wales, St George and Sutherland Campus, Level 2, Pitney Building, Kogarah, Sydney, NSW 2217, Australia; Department of Infectious Diseases, Immunology, and Sexual Health, St George Public Hospital, Kogarah, Sydney 2217, Australia.
| |
Collapse
|
5
|
Vejvisithsakul PP, Thumarat C, Leelahavanichkul A, Hirankan N, Pisitkun T, Paludan SR, Pisitkun P. Elucidating the function of STING in systemic lupus erythematosus through the STING Goldenticket mouse mutant. Sci Rep 2024; 14:13968. [PMID: 38886451 PMCID: PMC11183220 DOI: 10.1038/s41598-024-64495-6] [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: 12/09/2023] [Accepted: 06/09/2024] [Indexed: 06/20/2024] Open
Abstract
The complexity of systemic lupus erythematosus (SLE) arises from intricate genetic and environmental interactions, with STING playing a pivotal role. This study aims to comprehend the function of STING using the pristane-induced lupus (PIL) model in Sting missense mutant mice (Goldenticket or StingGt), which contrasts with previous research using Sting knockout mice. Investigating two-month-old StingGt mice over six months post-PIL induction, we observed a profound reduction in autoimmune markers, including antinuclear and anti-dsDNA antibodies, germinal center B cells, and plasma cells, compared to their wild-type counterparts. A pivotal finding was the marked decrease in IL-17-producing T cells. Notably, the severity of lupus nephritis and pulmonary hemorrhages was significantly diminished in StingGt mice. These findings demonstrate that different genetic approaches to interfere with STING signaling can lead to contrasting outcomes in SLE pathogenesis, which highlights the need for a nuanced understanding of the role of STING in drug development for SLE. In summary, the loss of Sting function in Goldenticket mutant mice rescued autoimmune phenotypes in PIL. This study reveals the critical nature of STING in SLE, suggesting that the method of STING modulation significantly influences disease phenotypes and should be a key consideration in developing targeted therapies.
Collapse
Affiliation(s)
- Pichpisith Pierre Vejvisithsakul
- Program in Translational Medicine, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
- Department of Biomedicine, Aarhus University, Aarhus, Denmark
| | - Chisanu Thumarat
- Program in Translational Medicine, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
| | - Asada Leelahavanichkul
- Department of Microbiology, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
- Translational Research in Inflammation and Immunology Research Unit (TRIRU), Department of Microbiology, Chulalongkorn University, Bangkok, Thailand
| | - Nattiya Hirankan
- Centre of Excellent in Immunology and Immune-Mediated Diseases, Department of Microbiology, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - Trairak Pisitkun
- Center of Excellence in Systems Biology, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | | | - Prapaporn Pisitkun
- Program in Translational Medicine, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, Thailand.
- Division of Allergy, Immunology, and Rheumatology, Department of Medicine, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, Thailand.
| |
Collapse
|
6
|
Li TM, Zyulina V, Seltzer ES, Dacic M, Chinenov Y, Daamen AR, Veiga KR, Schwartz N, Oliver DJ, Cabahug-Zuckerman P, Lora J, Liu Y, Shipman WD, Ambler WG, Taber SF, Onel KB, Zippin JH, Rashighi M, Krueger JG, Anandasabapathy N, Rogatsky I, Jabbari A, Blobel CP, Lipsky PE, Lu TT. The interferon-rich skin environment regulates Langerhans cell ADAM17 to promote photosensitivity in lupus. eLife 2024; 13:e85914. [PMID: 38860651 DOI: 10.7554/elife.85914] [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: 01/02/2023] [Accepted: 06/10/2024] [Indexed: 06/12/2024] Open
Abstract
The autoimmune disease lupus erythematosus (lupus) is characterized by photosensitivity, where even ambient ultraviolet radiation (UVR) exposure can lead to development of inflammatory skin lesions. We have previously shown that Langerhans cells (LCs) limit keratinocyte apoptosis and photosensitivity via a disintegrin and metalloprotease 17 (ADAM17)-mediated release of epidermal growth factor receptor (EGFR) ligands and that LC ADAM17 sheddase activity is reduced in lupus. Here, we sought to understand how the lupus skin environment contributes to LC ADAM17 dysfunction and, in the process, differentiate between effects on LC ADAM17 sheddase function, LC ADAM17 expression, and LC numbers. We show through transcriptomic analysis a shared IFN-rich environment in non-lesional skin across human lupus and three murine models: MRL/lpr, B6.Sle1yaa, and imiquimod (IMQ) mice. IFN-I inhibits LC ADAM17 sheddase activity in murine and human LCs, and IFNAR blockade in lupus model mice restores LC ADAM17 sheddase activity, all without consistent effects on LC ADAM17 protein expression or LC numbers. Anti-IFNAR-mediated LC ADAM17 sheddase function restoration is associated with reduced photosensitive responses that are dependent on EGFR signaling and LC ADAM17. Reactive oxygen species (ROS) is a known mediator of ADAM17 activity; we show that UVR-induced LC ROS production is reduced in lupus model mice, restored by anti-IFNAR, and is cytoplasmic in origin. Our findings suggest that IFN-I promotes photosensitivity at least in part by inhibiting UVR-induced LC ADAM17 sheddase function and raise the possibility that anifrolumab ameliorates lupus skin disease in part by restoring this function. This work provides insight into IFN-I-mediated disease mechanisms, LC regulation, and a potential mechanism of action for anifrolumab in lupus.
Collapse
Affiliation(s)
- Thomas Morgan Li
- Autoimmunity and Inflammation Program, Hospital for Special Surgery Research Institute, New York, United States
| | - Victoria Zyulina
- Autoimmunity and Inflammation Program, Hospital for Special Surgery Research Institute, New York, United States
- Department of Microbiology and Immunology, Weill Cornell Medical College, New York, United States
| | - Ethan S Seltzer
- Autoimmunity and Inflammation Program, Hospital for Special Surgery Research Institute, New York, United States
| | - Marija Dacic
- David Z. Rosensweig Genomics Research Center, Hospital for Special Surgery Research Institute, New York, United States
- Arthritis and Tissue Degeneration Program, Hospital for Special Surgery Research Institute, New York, United States
- Physiology, Biophysics, and Systems Biology Program, Weill Cornell Graduate School of Medical Sciences, New York, United States
| | - Yurii Chinenov
- David Z. Rosensweig Genomics Research Center, Hospital for Special Surgery Research Institute, New York, United States
| | - Andrea R Daamen
- Department of Medicine, AMPEL BioSolutions, Charlottesville, United States
| | - Keila R Veiga
- Autoimmunity and Inflammation Program, Hospital for Special Surgery Research Institute, New York, United States
- Pediatric Rheumatology, Department of Medicine, Hospital for Special Surgery, New York, United States
- Department of Pediatrics, Weill Cornell Medical College, New York, United States
| | - Noa Schwartz
- Autoimmunity and Inflammation Program, Hospital for Special Surgery Research Institute, New York, United States
- Rheumatology, Department of Medicine, Hospital for Special Surgery, New York, United States
| | - David J Oliver
- David Z. Rosensweig Genomics Research Center, Hospital for Special Surgery Research Institute, New York, United States
| | - Pamela Cabahug-Zuckerman
- Autoimmunity and Inflammation Program, Hospital for Special Surgery Research Institute, New York, United States
| | - Jose Lora
- Arthritis and Tissue Degeneration Program, Hospital for Special Surgery Research Institute, New York, United States
- Physiology, Biophysics, and Systems Biology Program, Weill Cornell Graduate School of Medical Sciences, New York, United States
| | - Yong Liu
- Department of Dermatology, Weill Cornell Medical College, New York, United States
| | - William D Shipman
- Autoimmunity and Inflammation Program, Hospital for Special Surgery Research Institute, New York, United States
- Weill Cornell/Rockefeller/Sloan-Kettering Tri-Institutional MD-PhD Program, Weill Cornell Medical College, New York, United States
- Immunology and Microbial Pathogenesis Program, Weill Cornell Graduate School of Medical Sciences, New York, United States
| | - William G Ambler
- Autoimmunity and Inflammation Program, Hospital for Special Surgery Research Institute, New York, United States
- Pediatric Rheumatology, Department of Medicine, Hospital for Special Surgery, New York, United States
- Department of Pediatrics, Weill Cornell Medical College, New York, United States
| | - Sarah F Taber
- Pediatric Rheumatology, Department of Medicine, Hospital for Special Surgery, New York, United States
- Department of Pediatrics, Weill Cornell Medical College, New York, United States
| | - Karen B Onel
- Pediatric Rheumatology, Department of Medicine, Hospital for Special Surgery, New York, United States
- Department of Pediatrics, Weill Cornell Medical College, New York, United States
| | - Jonathan H Zippin
- Department of Dermatology, Weill Cornell Medical College, New York, United States
| | - Mehdi Rashighi
- Department of Dermatology, University of Massachusetts Medical School, Worcester, United States
| | - James G Krueger
- Laboratory of Investigative Dermatology, Rockefeller University, New York, United States
| | - Niroshana Anandasabapathy
- Department of Dermatology, Weill Cornell Medical College, New York, United States
- Weill Cornell/Rockefeller/Sloan-Kettering Tri-Institutional MD-PhD Program, Weill Cornell Medical College, New York, United States
- Immunology and Microbial Pathogenesis Program, Weill Cornell Graduate School of Medical Sciences, New York, United States
| | - Inez Rogatsky
- Department of Microbiology and Immunology, Weill Cornell Medical College, New York, United States
- David Z. Rosensweig Genomics Research Center, Hospital for Special Surgery Research Institute, New York, United States
- Arthritis and Tissue Degeneration Program, Hospital for Special Surgery Research Institute, New York, United States
- Immunology and Microbial Pathogenesis Program, Weill Cornell Graduate School of Medical Sciences, New York, United States
| | - Ali Jabbari
- Laboratory of Investigative Dermatology, Rockefeller University, New York, United States
| | - Carl P Blobel
- Arthritis and Tissue Degeneration Program, Hospital for Special Surgery Research Institute, New York, United States
- Physiology, Biophysics, and Systems Biology Program, Weill Cornell Graduate School of Medical Sciences, New York, United States
- Department of Physiology, Biophysics, and Systems Biology, Weill Cornell Medical College, New York, United States
| | - Peter E Lipsky
- Department of Medicine, AMPEL BioSolutions, Charlottesville, United States
| | - Theresa T Lu
- Autoimmunity and Inflammation Program, Hospital for Special Surgery Research Institute, New York, United States
- Department of Microbiology and Immunology, Weill Cornell Medical College, New York, United States
- Pediatric Rheumatology, Department of Medicine, Hospital for Special Surgery, New York, United States
- Department of Pediatrics, Weill Cornell Medical College, New York, United States
- Immunology and Microbial Pathogenesis Program, Weill Cornell Graduate School of Medical Sciences, New York, United States
| |
Collapse
|
7
|
Lorant AK, Yoshida AE, Gilbertson EA, Chu T, Stefani C, Acharya M, Hamerman JA, Lacy-Hulbert A. Integrin αvβ3 Limits Cytokine Production by Plasmacytoid Dendritic Cells and Restricts TLR-Driven Autoimmunity. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2024; 212:1680-1692. [PMID: 38607278 PMCID: PMC11105983 DOI: 10.4049/jimmunol.2300290] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Accepted: 03/20/2024] [Indexed: 04/13/2024]
Abstract
Plasmacytoid dendritic cells (pDCs) are strongly implicated as a major source of IFN-I in systemic lupus erythematosus (SLE), triggered through TLR-mediated recognition of nucleic acids released from dying cells. However, relatively little is known about how TLR signaling and IFN-I production are regulated in pDCs. In this article, we describe a role for integrin αvβ3 in regulating TLR responses and IFN-I production by pDCs in mouse models. We show that αv and β3-knockout pDCs produce more IFN-I and inflammatory cytokines than controls when stimulated through TLR7 and TLR9 in vitro and in vivo. Increased cytokine production was associated with delayed acidification of endosomes containing TLR ligands, reduced LC3 conjugation, and increased TLR signaling. This dysregulated TLR signaling results in activation of B cells and promotes germinal center (GC) B cell and plasma cell expansion. Furthermore, in a mouse model of TLR7-driven lupus-like disease, deletion of αvβ3 from pDCs causes accelerated autoantibody production and pathology. We therefore identify a pDC-intrinsic role for αvβ3 in regulating TLR signaling and preventing activation of autoreactive B cells. Because αvβ3 serves as a receptor for apoptotic cells and cell debris, we hypothesize that this regulatory mechanism provides important contextual cues to pDCs and functions to limit responses to self-derived nucleic acids.
Collapse
Affiliation(s)
- Alina K Lorant
- Benaroya Research Institute at Virginia Mason; Seattle, WA, USA 98101
- Department of Immunology, University of Washington; Seattle, WA, USA 98109
| | - Anna E Yoshida
- Benaroya Research Institute at Virginia Mason; Seattle, WA, USA 98101
| | | | - Talyn Chu
- Benaroya Research Institute at Virginia Mason; Seattle, WA, USA 98101
| | - Caroline Stefani
- Benaroya Research Institute at Virginia Mason; Seattle, WA, USA 98101
| | - Mridu Acharya
- Seattle Children’s Research Institute, Seattle, WA, USA 98105
| | - Jessica A Hamerman
- Benaroya Research Institute at Virginia Mason; Seattle, WA, USA 98101
- Department of Immunology, University of Washington; Seattle, WA, USA 98109
| | - Adam Lacy-Hulbert
- Benaroya Research Institute at Virginia Mason; Seattle, WA, USA 98101
- Department of Immunology, University of Washington; Seattle, WA, USA 98109
| |
Collapse
|
8
|
Liparulo TS, Shoemaker JE. Mathematical Modeling Suggests That Monocyte Activity May Drive Sex Disparities during Influenza Infection. Viruses 2024; 16:837. [PMID: 38932131 PMCID: PMC11209518 DOI: 10.3390/v16060837] [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: 04/15/2024] [Revised: 05/15/2024] [Accepted: 05/17/2024] [Indexed: 06/28/2024] Open
Abstract
In humans, females of reproductive age often experience a more severe disease during influenza A virus infection, which may be due to differences in their innate immune response. Sex-specific outcomes to influenza infection have been recapitulated in mice, enabling researchers to study viral and immune dynamics in vivo in order to identify immune mechanisms that are differently regulated between the sexes. This study is based on the hypothesis that sex-specific outcomes emerge due to differences in the rates/speeds that select immune components respond. Using publicly available sex-specific murine data, we utilized dynamic mathematical models of the innate immune response to identify candidate mechanisms that may lead to increased disease severity in female mice. We implemented a large computational screen using the Bayesian information criterion (BIC), wherein the goodness of fit of the competing model scenarios is balanced against complexity (i.e., the number of parameters). Our results suggest that having sex-specific rates for proinflammatory monocyte induction by interferon and monocyte inhibition of virus replication provides the simplest (lowest BIC) explanation for the difference observed in the male and female immune responses. Markov-chain Monte Carlo (MCMC) analysis and global sensitivity analysis of the top performing scenario were performed to provide rigorous estimates of the sex-specific parameter distributions and to provide insight into which parameters most affect innate immune responses. Simulations using the top-performing model suggest that monocyte activity could be a key target to reduce influenza disease severity in females. Overall, our Bayesian statistical and dynamic modeling approach suggests that monocyte activity and induction parameters are sex-specific and may explain sex-differences in influenza disease immune dynamics.
Collapse
Affiliation(s)
- Tatum S. Liparulo
- Department of Chemical & Petroleum Engineering, University of Pittsburgh, Pittsburgh, PA 15260, USA
| | - Jason E. Shoemaker
- Department of Chemical & Petroleum Engineering, University of Pittsburgh, Pittsburgh, PA 15260, USA
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA 15260, USA
- Department of Computational and Systems Biology, University of Pittsburgh, Pittsburgh, PA 15260, USA
- Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA 15260, USA
| |
Collapse
|
9
|
Alee I, Chantawichitwong P, Leelahavanichkul A, Paludan SR, Pisitkun T, Pisitkun P. The STING inhibitor (ISD-017) reduces glomerulonephritis in 129.B6.Fcgr2b-deficient mice. Sci Rep 2024; 14:11020. [PMID: 38745067 PMCID: PMC11094069 DOI: 10.1038/s41598-024-61597-z] [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: 12/17/2023] [Accepted: 05/07/2024] [Indexed: 05/16/2024] Open
Abstract
The absence of stimulator of interferon genes (STING) in 129.B6.Fcgr2b-deficient mice rescue lupus phenotypes. The administration of a STING inhibitor (ISD017) into the young 129.B6.Fcgr2b-deficient mice prevents lupus nephritis development. This study mainly aimed to evaluate the effects of STING inhibition (ISD107) on established SLE in mice to prove that ISD017 could be a good therapeutic drug to reverse the already set-up autoimmunity and kidney impairment. Twenty-four-week-old Fcgr2b-deficient mice were treated with cyclophosphamide (25 mg/kg, intraperitoneal, once per week), ISD017 (10 mg/kg, intraperitoneal, three times per week), or control vehicle for 8 weeks, and were analyzed for phenotypes. Both ISD017 and cyclophosphamide treatment increased long-term survival and reduced the severity of glomerulonephritis in Fcgr2b-deficient mice. While cyclophosphamide reduced activated B cells (B220+GL-7+), ISD017 decreased activated T cells (CD4+CD69+) and neutrophils (Ly6c+Ly6g+) in Fcgr2b-deficient mice. In addition, ISD017 reduced IL-1β and interferon-inducible genes. In summary, ISD017 treatment in symptomatic 129.B6.Fcgr2b-deficient mice reduced the severity of glomerulonephritis and increased long-term survival. ISD017 worked comparably to cyclophosphamide for treating lupus nephritis in 129.B6.Fcgr2b-deficient mice. ISD017 reduced activated T cells and neutrophils, while cyclophosphamide targeted activated B cells. These results suggested that STING inhibitors can potentially be a new therapeutic drug for treating lupus.
Collapse
Affiliation(s)
- Isara Alee
- Center of Excellence in Systems Biology, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
- Medical Sciences Program, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - Papasara Chantawichitwong
- Center of Excellence in Systems Biology, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
- Graduated Program in Molecular Medicine, Faculty of Science, Mahidol University, Salaya, Thailand
| | - Asada Leelahavanichkul
- Center of Excellence in Translational Research in Inflammation and Immunology (CETRII), Department of Microbiology, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
- Department of Microbiology, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - Søren R Paludan
- Department of Biomedicine, Aarhus University, Aarhus, Denmark
| | - Trairak Pisitkun
- Center of Excellence in Systems Biology, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand.
- Epithelial Systems Biology Laboratory, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD, USA.
| | - Prapaporn Pisitkun
- Division of Allergy, Immunology, and Rheumatology, Department of Medicine, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, Thailand.
| |
Collapse
|
10
|
Andrews JS, Boonyaratanakornkit JB, Krusinska E, Allen S, Posada JA. Assessment of the Impact of RNase in Patients With Severe Fatigue Related to Post-Acute Sequelae of SARS-CoV-2 Infection (PASC): A Randomized Phase 2 Trial of RSLV-132. Clin Infect Dis 2024:ciae205. [PMID: 38728385 DOI: 10.1093/cid/ciae205] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2024] [Indexed: 05/12/2024] Open
Abstract
BACKGROUND Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) RNA and RNA debris persist in viral reservoirs for weeks to months following infection, potentially triggering interferon production and chronic inflammation. RSLV-132 is a biologic drug composed of catalytically active human RNase1 fused to human IgG1 Fc and is designed to remain in circulation and digest extracellular RNA. We hypothesized that removal of SARS-CoV-2 viral RNA from latent reservoirs may improve inflammation, neuroinflammation, and fatigue associated with post-acute sequelae of SARS-CoV-2 infection (PASC). METHODS This was a phase 2, double-blind, placebo-controlled randomized clinical trial in participants with a 24-week history of PASC and severe fatigue. The primary endpoint of the trial assessed the impact of 6 intravenous doses of RSLV-132 on the mean change from baseline at day 71 in the Patient-Reported Outcomes Measurement Information System Fatigue Short Form 7a (PROMIS Fatigue SF 7a). RESULTS A statistically significant difference on day 71 was not observed with respect to the primary or secondary endpoints. This was likely due to a placebo response that increased during the trial. Statistically significant improvement in fatigue as measured by the PROMIS Fatigue SF 7a, Functional Assessment of Chronic Illness Therapy-Fatigue (FACIT-Fatigue), and Physicians Global Assessment (PGA) instruments were observed earlier in the trial, with women demonstrating greater responses to RSLV-132 than men. CONCLUSION While fatigue was not statistically significantly improved at Day 71, earlier timepoints revealed statistically significant improvement in fatigue and physician global assessment. The data suggest eliminating latent viral RNA by increasing serum RNase activity may improve fatigue in PASC patients. Women may respond better to this approach than men. Future studies will aim to confirm these findings.
Collapse
Affiliation(s)
- James S Andrews
- Department of Rheumatology, University of Alabama, Birmingham, Alabama, USA
| | - Jim B Boonyaratanakornkit
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Center, Seattle, Washington, USA
- Department of Infectious Disease, University of Washington, Seattle, Washington, USA
| | | | | | | |
Collapse
|
11
|
Huret C, Ferrayé L, David A, Mohamed M, Valentin N, Charlotte F, Savignac M, Goodhardt M, Guéry JC, Rougeulle C, Morey C. Altered X-chromosome inactivation predisposes to autoimmunity. SCIENCE ADVANCES 2024; 10:eadn6537. [PMID: 38701219 PMCID: PMC11068014 DOI: 10.1126/sciadv.adn6537] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Accepted: 04/03/2024] [Indexed: 05/05/2024]
Abstract
In mammals, males and females show marked differences in immune responses. Males are globally more sensitive to infectious diseases, while females are more susceptible to systemic autoimmunity. X-chromosome inactivation (XCI), the epigenetic mechanism ensuring the silencing of one X in females, may participate in these sex biases. We perturbed the expression of the trigger of XCI, the noncoding RNA Xist, in female mice. This resulted in reactivation of genes on the inactive X, including members of the Toll-like receptor 7 (TLR7) signaling pathway, in monocyte/macrophages and dendritic and B cells. Consequently, female mice spontaneously developed inflammatory signs typical of lupus, including anti-nucleic acid autoantibodies, increased frequencies of age-associated and germinal center B cells, and expansion of monocyte/macrophages and dendritic cells. Mechanistically, TLR7 signaling is dysregulated in macrophages, leading to sustained expression of target genes upon stimulation. These findings provide a direct link between maintenance of XCI and female-biased autoimmune manifestations and highlight altered XCI as a cause of autoimmunity.
Collapse
Affiliation(s)
- Christophe Huret
- Université Paris Cité, CNRS, Epigenetics and Cell Fate, F-75013 Paris, France
| | - Léa Ferrayé
- Toulouse Institute for Infectious and Inflammatory Diseases (Infinity), INSERM UMR1291, CNRS UMR5051, University Paul Sabatier, Toulouse, France
| | - Antoine David
- Université Paris Cité, INSERM UMRS 976, Institut de Recherche Saint Louis, F-75010, Paris, France
| | - Myriame Mohamed
- Université Paris Cité, CNRS, Epigenetics and Cell Fate, F-75013 Paris, France
| | - Nicolas Valentin
- Université Paris Cité, CNRS, Institut Jacques Monod, F-75013, Paris, France
| | - Frédéric Charlotte
- Sorbonne University, Department of Pathological Anatomy and Cytology, Hôpital Pitié-Salpêtrière Charles Foix, F-75013, Paris, France
| | - Magali Savignac
- Toulouse Institute for Infectious and Inflammatory Diseases (Infinity), INSERM UMR1291, CNRS UMR5051, University Paul Sabatier, Toulouse, France
| | - Michele Goodhardt
- Université Paris Cité, INSERM UMRS 976, Institut de Recherche Saint Louis, F-75010, Paris, France
| | - Jean-Charles Guéry
- Toulouse Institute for Infectious and Inflammatory Diseases (Infinity), INSERM UMR1291, CNRS UMR5051, University Paul Sabatier, Toulouse, France
| | - Claire Rougeulle
- Université Paris Cité, CNRS, Epigenetics and Cell Fate, F-75013 Paris, France
| | - Céline Morey
- Université Paris Cité, CNRS, Epigenetics and Cell Fate, F-75013 Paris, France
| |
Collapse
|
12
|
Renaudineau Y, Charras A, Natoli V, Fusaro M, Smith EMD, Beresford MW, Hedrich CM. Type I interferon associated epistasis may contribute to early disease-onset and high disease activity in juvenile-onset lupus. Clin Immunol 2024; 262:110194. [PMID: 38508295 DOI: 10.1016/j.clim.2024.110194] [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: 12/04/2023] [Revised: 03/01/2024] [Accepted: 03/10/2024] [Indexed: 03/22/2024]
Abstract
Pathologic type I interferon (T1IFN) expression is a key feature in systemic lupus erythematosus (SLE) that associates with disease activity. When compared to adult-onset disease, juvenile-onset (j)SLE is characterized by increased disease activity and damage, which likely relates to increased genetic burden. To identify T1IFN-associated gene polymorphisms (TLR7, IRAK1, miR-3142/miR-146a, IRF5, IRF7, IFIH1, IRF8, TYK2, STAT4), identify long-range linkage disequilibrium and gene:gene interrelations, 319 jSLE patients were genotyped using panel sequencing. Coupling phenotypic quantitative trait loci (QTL) analysis identified 10 jSLE QTL that associated with young age at onset (<12 years; IRAK1 [rs1059702], TLR7 [rs3853839], IFIH1 [rs11891191, rs1990760, rs3747517], STAT4 [rs3021866], TYK2 [rs280501], IRF8 [rs1568391, rs6638]), global disease activity (SLEDAI-2 K >10; IFIH1 [rs1990760], STAT4 [rs3021866], IRF8 [rs903202, rs1568391, rs6638]), and mucocutaneous involvement (TLR7 [rs3853839], IFIH1 [rs11891191, rs1990760]). This study suggests T1IFN-associated polymorphisms and gene:gene interrelations in jSLE. Genotyping of jSLE patients may allow for individualized treatment and care.
Collapse
Affiliation(s)
- Yves Renaudineau
- Immunology Department Laboratory, Referral Medical Biology Laboratory, Institut Fédératif de Biologie, Toulouse University Hospital Center, France; INFINITy, Toulouse Institute for Infectious and Inflammatory Diseases, INSERM U1291, CNRS U5051, University Toulouse III, Toulouse, France
| | - Amandine Charras
- Department of Women's & Children's Health, Institute of Life Course and Medical Sciences, University of Liverpool, UK
| | - Valentina Natoli
- Department of Women's & Children's Health, Institute of Life Course and Medical Sciences, University of Liverpool, UK; Università degli Studi di Genova, Dipartimento di Neuroscienze, riabilitazione, oftalmologia, genetica e scienze materno-infantili, DINOGMI, Genoa, Italy
| | - Mathieu Fusaro
- Immunology Department Laboratory, Referral Medical Biology Laboratory, Institut Fédératif de Biologie, Toulouse University Hospital Center, France; INFINITy, Toulouse Institute for Infectious and Inflammatory Diseases, INSERM U1291, CNRS U5051, University Toulouse III, Toulouse, France
| | - Eve M D Smith
- Department of Women's & Children's Health, Institute of Life Course and Medical Sciences, University of Liverpool, UK; Department of Rheumatology, Alder Hey Children's NHS Foundation Trust, Liverpool, UK
| | - Michael W Beresford
- Department of Women's & Children's Health, Institute of Life Course and Medical Sciences, University of Liverpool, UK; Department of Rheumatology, Alder Hey Children's NHS Foundation Trust, Liverpool, UK
| | - Christian M Hedrich
- Department of Women's & Children's Health, Institute of Life Course and Medical Sciences, University of Liverpool, UK; Department of Rheumatology, Alder Hey Children's NHS Foundation Trust, Liverpool, UK.
| |
Collapse
|
13
|
Ah Kioon MD, Laurent P, Chaudhary V, Du Y, Crow MK, Barrat FJ. Modulation of plasmacytoid dendritic cells response in inflammation and autoimmunity. Immunol Rev 2024; 323:241-256. [PMID: 38553621 DOI: 10.1111/imr.13331] [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] [Indexed: 05/18/2024]
Abstract
The discovery of toll-like receptors (TLRs) and the subsequent recognition that endogenous nucleic acids (NAs) could serve as TLR ligands have led to essential insights into mechanisms of healthy immune responses as well as pathogenic mechanisms relevant to systemic autoimmune and inflammatory diseases. In systemic lupus erythematosus, systemic sclerosis, and rheumatoid arthritis, NA-containing immune complexes serve as TLR ligands, with distinct implications depending on the additional immune stimuli available. Plasmacytoid dendritic cells (pDCs), the robust producers of type I interferon (IFN-I), are providing critical insights relevant to TLR-mediated healthy immune responses and tissue repair, as well as generation of inflammation, autoimmunity and fibrosis, processes central to the pathogenesis of many autoimmune diseases. In this review, we describe recent data characterizing the role of platelets and NA-binding chemokines in modulation of TLR signaling in pDCs, as well as implications for how the IFN-I products of pDCs contribute to the generation of inflammation and wound healing responses by monocyte/macrophages. Chemokine modulators of TLR-mediated B cell tolerance mechanisms and interactions between TLR signaling and metabolic pathways are also considered. The modulators of TLR signaling and their contribution to the pathogenesis of systemic autoimmune diseases suggest new opportunities for identification of novel therapeutic targets.
Collapse
Affiliation(s)
| | - Paôline Laurent
- HSS Research Institute, Hospital for Special Surgery, New York, New York, USA
- Department of Microbiology and Immunology, Weill Cornell Medical College of Cornell University, New York, New York, USA
| | - Vidyanath Chaudhary
- HSS Research Institute, Hospital for Special Surgery, New York, New York, USA
- Department of Microbiology and Immunology, Weill Cornell Medical College of Cornell University, New York, New York, USA
| | - Yong Du
- HSS Research Institute, Hospital for Special Surgery, New York, New York, USA
- Department of Microbiology and Immunology, Weill Cornell Medical College of Cornell University, New York, New York, USA
| | - Mary K Crow
- HSS Research Institute, Hospital for Special Surgery, New York, New York, USA
- Mary Kirkland Center for Lupus Research, Hospital for Special Surgery, New York, New York, USA
- Department of Medicine, Weill Cornell Medicine, New York, New York, USA
| | - Franck J Barrat
- HSS Research Institute, Hospital for Special Surgery, New York, New York, USA
- Department of Microbiology and Immunology, Weill Cornell Medical College of Cornell University, New York, New York, USA
- David Z. Rosensweig Genomics Research Center, Hospital for Special Surgery, New York, New York, USA
| |
Collapse
|
14
|
He Y, Vinuesa CG. Germinal center versus extrafollicular responses in systemic autoimmunity: Who turns the blade on self? Adv Immunol 2024; 162:109-133. [PMID: 38866437 PMCID: PMC7616122 DOI: 10.1016/bs.ai.2024.02.002] [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] [Indexed: 06/14/2024]
Abstract
Spontaneously formed germinal centers (GCs) have been reported in most mouse models of human autoimmune disease and autoimmune patients, and have long been considered a source of somatically-mutated and thus high affinity autoantibodies, but their role in autoimmunity is becoming increasingly controversial, particularly in the context of systemic autoimmune diseases like lupus. On the one hand, there is good evidence that some pathogenic lupus antibodies have acquired somatic mutations that increase affinity for self-antigens. On the other hand, recent studies that have genetically prevented GC formation, suggest that GCs are dispensable for systemic autoimmunity, pointing instead to pathogenic extrafollicular (EF) B-cell responses. Furthermore, several lines of evidence suggest germinal centers may in fact be somewhat protective in the context of autoimmunity. Here we review how some of the conflicting evidence arose, and current views on the role of GCs in autoimmunity, outlining mechanisms by which GC may eliminate self-reactivity. We also discuss recent advances in understanding extrafollicular B cell subsets that participate in autoimmunity.
Collapse
Affiliation(s)
- Yuke He
- China-Australia Centre for Personalised Immunology, Department of Rheumatology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, P.R. China
| | - Carola G Vinuesa
- China-Australia Centre for Personalised Immunology, Department of Rheumatology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, P.R. China; Francis Crick Institute, London, United Kingdom.
| |
Collapse
|
15
|
Shirahama Y, Hashimoto A, Ono N, Takeyama Y, Maruyama A, Inoue T, Tada Y, Niiro H. Relationships between Type 1 interferon signatures and clinical features of the new-onset lupus patients in Japan. Mod Rheumatol 2024; 34:346-351. [PMID: 36695430 DOI: 10.1093/mr/road015] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Revised: 01/13/2023] [Accepted: 01/23/2023] [Indexed: 01/26/2023]
Abstract
OBJECTIVES The objective of the study is to investigate the relationships between Type 1 interferon (T1-IFN) signatures and clinical characteristics of lupus patients. METHODS We examined 49 new-onset lupus patients who were diagnosed between 1999 and 2017. The patients treated with >10 mg of prednisolone or hydroxychloroquine were excluded from this study. Serum T1-IFN signatures were revealed by a functional reporter assay and standardized by recombinant IFN-α. Patient backgrounds, clinical findings, and treatments were retrospectively extracted from their electrical medical records. Clinical data were also available, including SLE Disease Activity Index of SLE patients on admission. RESULTS T1-IFN signatures of lupus patients closely correlated with lupus disease activities, such as SLE Disease Activity Index-2K, white blood cell, C3 levels, and the titre of double-strand DNA antibody. We found fever and acute lupus dermatitis closely associated with T1-IFN signature. CONCLUSIONS In lupus patients, fever and acute lupus dermatitis are good indicators of a strong T1-IFN signature.
Collapse
Affiliation(s)
- Yuri Shirahama
- Department of Rheumatology, Saga University Hospital, Saga, Japan
| | - Aki Hashimoto
- Department of Dermatology, Saga University Hospital, Saga, Japan
| | - Nobuyuki Ono
- Department of Rheumatology, Saga University Hospital, Saga, Japan
- Department of Clinical Immunology and Rheumatology/Infectious Disease, Kyushu University Hospital, Fukuoka, Japan
| | - Yukiko Takeyama
- Department of Rheumatology, Saga University Hospital, Saga, Japan
| | - Akihito Maruyama
- Department of Rheumatology, Saga University Hospital, Saga, Japan
| | - Takuya Inoue
- Department of Dermatology, Saga University Hospital, Saga, Japan
| | - Yoshifumi Tada
- Department of Rheumatology, Saga University Hospital, Saga, Japan
| | - Hiroaki Niiro
- Department of Clinical Immunology and Rheumatology/Infectious Disease, Kyushu University Hospital, Fukuoka, Japan
- Department of Medical Education, Graduate School of Medical Sciences, Faculty of Medicine, Kyushu University, Fukuoka, Japan
| |
Collapse
|
16
|
Mishra H, Schlack-Leigers C, Lim EL, Thieck O, Magg T, Raedler J, Wolf C, Klein C, Ewers H, Lee-Kirsch MA, Meierhofer D, Hauck F, Majer O. Disrupted degradative sorting of TLR7 is associated with human lupus. Sci Immunol 2024; 9:eadi9575. [PMID: 38207015 DOI: 10.1126/sciimmunol.adi9575] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Accepted: 12/22/2023] [Indexed: 01/13/2024]
Abstract
Hyperactive TLR7 signaling has long been appreciated as driver of autoimmune disease in mouse models. Recently, gain-of-function mutations in TLR7 were identified as a monogenic cause of human lupus. TLR7 is an intracellular transmembrane receptor, sensing RNA breakdown products within late endosomes. Here, we show that endosome dysfunction leads to unrestricted TLR7 signaling and is associated with human lupus. The late endosomal BORC complex together with the small GTPase Arl8b controls intracellular TLR7 levels by regulating receptor turnover. This requires a direct interaction between the TLR7-associated trafficking factor Unc93b1 and Arl8b. We identified an UNC93B1 mutation in a patient with childhood-onset lupus, which results in reduced BORC interaction and endosomal TLR7 accumulation. Therefore, a failure to control TLR7 turnover is sufficient to break immunological tolerance to nucleic acids. Our results highlight the importance of an intact endomembrane system in preventing pathological TLR7 signaling and autoimmune disease.
Collapse
Affiliation(s)
- Harshita Mishra
- Max Planck Institute for Infection Biology, Berlin 10117, Germany
| | - Claire Schlack-Leigers
- Institute for Chemistry and Biochemistry, Freie Universität Berlin, Berlin 14195, Germany
| | - Ee Lyn Lim
- Max Planck Institute for Infection Biology, Berlin 10117, Germany
| | - Oliver Thieck
- Max Planck Institute for Infection Biology, Berlin 10117, Germany
| | - Thomas Magg
- Department of Pediatrics, Dr. von Hauner Children's Hospital, University Hospital, Ludwig-Maximilians-Universität München, Munich 80337, Germany
| | - Johannes Raedler
- Department of Pediatrics, Dr. von Hauner Children's Hospital, University Hospital, Ludwig-Maximilians-Universität München, Munich 80337, Germany
| | - Christine Wolf
- Department of Pediatrics, Medizinische Fakultät Carl Gustav Carus, Technische Universität Dresden, Dresden 01307, Germany
| | - Christoph Klein
- Department of Pediatrics, Dr. von Hauner Children's Hospital, University Hospital, Ludwig-Maximilians-Universität München, Munich 80337, Germany
| | - Helge Ewers
- Institute for Chemistry and Biochemistry, Freie Universität Berlin, Berlin 14195, Germany
| | - Min Ae Lee-Kirsch
- Department of Pediatrics, Medizinische Fakultät Carl Gustav Carus, Technische Universität Dresden, Dresden 01307, Germany
| | - David Meierhofer
- Max Planck Institute for Molecular Genetics, Berlin 14195, Germany
| | - Fabian Hauck
- Department of Pediatrics, Dr. von Hauner Children's Hospital, University Hospital, Ludwig-Maximilians-Universität München, Munich 80337, Germany
| | - Olivia Majer
- Max Planck Institute for Infection Biology, Berlin 10117, Germany
| |
Collapse
|
17
|
Wolf C, Lim EL, Mokhtari M, Kind B, Odainic A, Lara-Villacanas E, Koss S, Mages S, Menzel K, Engel K, Dückers G, Bernbeck B, Schneider DT, Siepermann K, Niehues T, Goetzke CC, Durek P, Minden K, Dörner T, Stittrich A, Szelinski F, Guerra GM, Massoud M, Bieringer M, de Oliveira Mann CC, Beltrán E, Kallinich T, Mashreghi MF, Schmidt SV, Latz E, Klughammer J, Majer O, Lee-Kirsch MA. UNC93B1 variants underlie TLR7-dependent autoimmunity. Sci Immunol 2024; 9:eadi9769. [PMID: 38207055 DOI: 10.1126/sciimmunol.adi9769] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Accepted: 12/22/2023] [Indexed: 01/13/2024]
Abstract
UNC93B1 is critical for trafficking and function of nucleic acid-sensing Toll-like receptors (TLRs) TLR3, TLR7, TLR8, and TLR9, which are essential for antiviral immunity. Overactive TLR7 signaling induced by recognition of self-nucleic acids has been implicated in systemic lupus erythematosus (SLE). Here, we report UNC93B1 variants (E92G and R336L) in four patients with early-onset SLE. Patient cells or mouse macrophages carrying the UNC93B1 variants produced high amounts of TNF-α and IL-6 and upon stimulation with TLR7/TLR8 agonist, but not with TLR3 or TLR9 agonists. E92G causes UNC93B1 protein instability and reduced interaction with TLR7, leading to selective TLR7 hyperactivation with constitutive type I IFN signaling. Thus, UNC93B1 regulates TLR subtype-specific mechanisms of ligand recognition. Our findings establish a pivotal role for UNC93B1 in TLR7-dependent autoimmunity and highlight the therapeutic potential of targeting TLR7 in SLE.
Collapse
Affiliation(s)
- Christine Wolf
- Department of Pediatrics, Medizinische Fakultät Carl Gustav Carus, Technische Universität Dresden, Dresden 01307, Germany
| | - Ee Lyn Lim
- Max Planck Institute for Infection Biology, Berlin 10117, Germany
| | - Mohammad Mokhtari
- Gene Center, Systems Immunology, Ludwig-Maximilians-Universität Munich, Munich 81377, Germany
| | - Barbara Kind
- Department of Pediatrics, Medizinische Fakultät Carl Gustav Carus, Technische Universität Dresden, Dresden 01307, Germany
| | - Alexandru Odainic
- Institute of Innate Immunity, University of Bonn, Bonn 53127, Germany
- Department of Microbiology and Immunology, Peter Doherty Institute for Infection & Immunity, University of Melbourne, Melbourne, VIC 3010, Australia
| | - Eusebia Lara-Villacanas
- Department of Pediatrics, Klinikum Dortmund, University Witten/Herdecke, Dortmund 44145, Germany
| | - Sarah Koss
- Department of Pediatrics, Medizinische Fakultät Carl Gustav Carus, Technische Universität Dresden, Dresden 01307, Germany
| | - Simon Mages
- Gene Center, Systems Immunology, Ludwig-Maximilians-Universität Munich, Munich 81377, Germany
| | - Katharina Menzel
- Department of Pediatrics, Medizinische Fakultät Carl Gustav Carus, Technische Universität Dresden, Dresden 01307, Germany
| | - Kerstin Engel
- Department of Pediatrics, Medizinische Fakultät Carl Gustav Carus, Technische Universität Dresden, Dresden 01307, Germany
| | - Gregor Dückers
- Department of Pediatrics, Helios Klinik Krefeld, Krefeld 47805, Germany
| | - Benedikt Bernbeck
- Department of Pediatrics, Klinikum Dortmund, University Witten/Herdecke, Dortmund 44145, Germany
| | - Dominik T Schneider
- Department of Pediatrics, Klinikum Dortmund, University Witten/Herdecke, Dortmund 44145, Germany
| | | | - Tim Niehues
- Department of Pediatrics, Helios Klinik Krefeld, Krefeld 47805, Germany
| | - Carl Christoph Goetzke
- Department of Pediatric Respiratory Medicine, Immunology and Critical Care Medicine, Charité-Universitätsmedizin Berlin, Berlin 10117, Germany
- Deutsches Rheuma-Forschungszentrum (DRFZ), an institute of the Leibniz Association, Berlin 10117, Germany
- Berlin Institute of Health at Charité-Universitätsmedizin Berlin, Berlin 10178, Germany
| | - Pawel Durek
- Deutsches Rheuma-Forschungszentrum (DRFZ), an institute of the Leibniz Association, Berlin 10117, Germany
| | - Kirsten Minden
- Department of Pediatric Respiratory Medicine, Immunology and Critical Care Medicine, Charité-Universitätsmedizin Berlin, Berlin 10117, Germany
- Deutsches Rheuma-Forschungszentrum (DRFZ), an institute of the Leibniz Association, Berlin 10117, Germany
| | - Thomas Dörner
- Deutsches Rheuma-Forschungszentrum (DRFZ), an institute of the Leibniz Association, Berlin 10117, Germany
- Department of Medicine, Rheumatology and Clinical Immunology, Charite-Universitätsmedizin Berlin, Berlin 10117, Germany
| | - Anna Stittrich
- Labor Berlin Charité-Vivantes GmbH, Department of Human Genetics, Berlin 13353, Germany
| | - Franziska Szelinski
- Deutsches Rheuma-Forschungszentrum (DRFZ), an institute of the Leibniz Association, Berlin 10117, Germany
- Department of Medicine, Rheumatology and Clinical Immunology, Charite-Universitätsmedizin Berlin, Berlin 10117, Germany
| | - Gabriela Maria Guerra
- Deutsches Rheuma-Forschungszentrum (DRFZ), an institute of the Leibniz Association, Berlin 10117, Germany
| | - Mona Massoud
- Deutsches Rheuma-Forschungszentrum (DRFZ), an institute of the Leibniz Association, Berlin 10117, Germany
| | - Markus Bieringer
- Department of Cardiology and Nephrology, HELIOS Klinikum Berlin-Buch, Berlin 13125, Germany
| | | | - Eduardo Beltrán
- Institute for Clinical Neuroimmunology, BioMedizinisches Zentrum, Ludwig-Maximilians-Universität Munich, Munich 82152, Germany
| | - Tilmann Kallinich
- Department of Pediatric Respiratory Medicine, Immunology and Critical Care Medicine, Charité-Universitätsmedizin Berlin, Berlin 10117, Germany
- Deutsches Rheuma-Forschungszentrum (DRFZ), an institute of the Leibniz Association, Berlin 10117, Germany
- Berlin Institute of Health at Charité-Universitätsmedizin Berlin, Berlin 10178, Germany
| | - Mir-Farzin Mashreghi
- Deutsches Rheuma-Forschungszentrum (DRFZ), an institute of the Leibniz Association, Berlin 10117, Germany
| | - Susanne V Schmidt
- Institute of Innate Immunity, University of Bonn, Bonn 53127, Germany
| | - Eicke Latz
- Institute of Innate Immunity, University of Bonn, Bonn 53127, Germany
- German Center for Neurodegenerative Diseases (DZNE), Bonn 53175, Germany
| | - Johanna Klughammer
- Gene Center, Systems Immunology, Ludwig-Maximilians-Universität Munich, Munich 81377, Germany
| | - Olivia Majer
- Max Planck Institute for Infection Biology, Berlin 10117, Germany
| | - Min Ae Lee-Kirsch
- Department of Pediatrics, Medizinische Fakultät Carl Gustav Carus, Technische Universität Dresden, Dresden 01307, Germany
- University Center for Rare Diseases, Medizinische Fakultät Carl Gustav Carus, Technische Universität Dresden, Dresden 01307, Germany
| |
Collapse
|
18
|
Punnanitinont A, Kasperek EM, Zhu C, Yu G, Miecznikowski JC, Kramer JM. TLR7 activation of age-associated B cells mediates disease in a mouse model of primary Sjögren's disease. J Leukoc Biol 2024; 115:497-510. [PMID: 37930711 PMCID: PMC10990110 DOI: 10.1093/jleuko/qiad135] [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: 07/25/2023] [Revised: 10/16/2023] [Accepted: 10/23/2023] [Indexed: 11/07/2023] Open
Abstract
Primary Sjögren's disease (pSD) (also referred to as Sjögren's syndrome) is an autoimmune disease that primarily occurs in women. In addition to exocrine gland dysfunction, pSD patients exhibit B cell hyperactivity. B cell-intrinsic TLR7 activation is integral to the pathogenesis of systemic lupus erythematosus, a disease that shares similarities with pSD. The role of TLR7-mediated B cell activation in pSD, however, remains poorly understood. We hypothesized that age-associated B cells (ABCs) were expanded in pSD and that TLR7-stimulated ABCs exhibited pathogenic features characteristic of disease. Our data revealed that ABC expansion and TLR7 expression were enhanced in a pSD mouse model in a Myd88-dependent manner. Splenocytes from pSD mice showed enhanced sensitivity to TLR7 agonism as compared with those derived from control animals. Sort-purified marginal zone B cells and ABCs from pSD mice showed enhanced inflammatory cytokine secretion and were enriched for antinuclear autoantibodies following TLR7 agonism. Finally, IgG from pSD patient sera showed elevated antinuclear autoantibodies, many of which were secreted preferentially by TLR7-stimulated murine marginal zone B cells and ABCs. These data indicate that pSD B cells are hyperresponsive to TLR7 agonism and that TLR7-activated B cells contribute to pSD through cytokine and autoantibody production. Thus, therapeutics that target TLR7 signaling cascades in B cells may have utility in pSD patients.
Collapse
Affiliation(s)
- Achamaporn Punnanitinont
- Department of Oral Biology, School of Dental Medicine, The University at Buffalo, State University of New York, Buffalo, NY USA
| | - Eileen M. Kasperek
- Department of Oral Biology, School of Dental Medicine, The University at Buffalo, State University of New York, Buffalo, NY USA
| | - Chengsong Zhu
- Department of Immunology, Microarray & Immune Phenotyping Core Facility, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Guan Yu
- Department of Biostatistics, School of Public Health and Health Professions, The University at Buffalo, State University of New York, Buffalo, NY USA
| | - Jeffrey C. Miecznikowski
- Department of Biostatistics, School of Public Health and Health Professions, The University at Buffalo, State University of New York, Buffalo, NY USA
| | - Jill M. Kramer
- Department of Oral Biology, School of Dental Medicine, The University at Buffalo, State University of New York, Buffalo, NY USA
| |
Collapse
|
19
|
Forsyth KS, Jiwrajka N, Lovell CD, Toothacre NE, Anguera MC. The conneXion between sex and immune responses. Nat Rev Immunol 2024:10.1038/s41577-024-00996-9. [PMID: 38383754 DOI: 10.1038/s41577-024-00996-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/18/2024] [Indexed: 02/23/2024]
Abstract
There are notable sex-based differences in immune responses to pathogens and self-antigens, with female individuals exhibiting increased susceptibility to various autoimmune diseases, and male individuals displaying preferential susceptibility to some viral, bacterial, parasitic and fungal infections. Although sex hormones clearly contribute to sex differences in immune cell composition and function, the presence of two X chromosomes in female individuals suggests that differential gene expression of numerous X chromosome-linked immune-related genes may also influence sex-biased innate and adaptive immune cell function in health and disease. Here, we review the sex differences in immune system composition and function, examining how hormones and genetics influence the immune system. We focus on the genetic and epigenetic contributions responsible for altered X chromosome-linked gene expression, and how this impacts sex-biased immune responses in the context of pathogen infection and systemic autoimmunity.
Collapse
Affiliation(s)
- Katherine S Forsyth
- Department of Biomedical Sciences, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Nikhil Jiwrajka
- Department of Biomedical Sciences, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, PA, USA
- Division of Rheumatology, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA
| | - Claudia D Lovell
- Department of Biomedical Sciences, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Natalie E Toothacre
- Department of Biomedical Sciences, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Montserrat C Anguera
- Department of Biomedical Sciences, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, PA, USA.
| |
Collapse
|
20
|
David C, Badonyi M, Kechiche R, Insalaco A, Zecca M, De Benedetti F, Orcesi S, Chiapparini L, Comoli P, Federici S, Gattorno M, Ginevrino M, Giorgio E, Matteo V, Moran-Alvarez P, Politano D, Prencipe G, Sirchia F, Volpi S, Masson C, Rice GI, Frémond ML, Lepelley A, Marsh JA, Crow YJ. Interface Gain-of-Function Mutations in TLR7 Cause Systemic and Neuro-inflammatory Disease. J Clin Immunol 2024; 44:60. [PMID: 38324161 PMCID: PMC10850255 DOI: 10.1007/s10875-024-01660-6] [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: 12/06/2023] [Accepted: 01/17/2024] [Indexed: 02/08/2024]
Abstract
TLR7 recognizes pathogen-derived single-stranded RNA (ssRNA), a function integral to the innate immune response to viral infection. Notably, TLR7 can also recognize self-derived ssRNA, with gain-of-function mutations in human TLR7 recently identified to cause both early-onset systemic lupus erythematosus (SLE) and neuromyelitis optica. Here, we describe two novel mutations in TLR7, F507S and L528I. While the L528I substitution arose de novo, the F507S mutation was present in three individuals from the same family, including a severely affected male, notably given that the TLR7 gene is situated on the X chromosome and that all other cases so far described have been female. The observation of mutations at residues 507 and 528 of TLR7 indicates the importance of the TLR7 dimerization interface in maintaining immune homeostasis, where we predict that altered homo-dimerization enhances TLR7 signaling. Finally, while mutations in TLR7 can result in SLE-like disease, our data suggest a broader phenotypic spectrum associated with TLR7 gain-of-function, including significant neurological involvement.
Collapse
Affiliation(s)
- Clémence David
- Laboratory of Neurogenetics and NeuroinflammationImagine Institute, INSERM UMR1163, Paris, France
| | - Mihaly Badonyi
- MRC Human Genetics Unit, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, UK
| | - Robin Kechiche
- Laboratory of Neurogenetics and NeuroinflammationImagine Institute, INSERM UMR1163, Paris, France
- Department of Paediatric Hematology-Immunology and Rheumatology, Necker-Enfants Malades Hospital, AP-HP, Paris, France
| | - Antonella Insalaco
- Division of Rheumatology, IRCCS Ospedale Pediatrico Bambino Gesù, Rome, Italy
| | - Marco Zecca
- Pediatric Haematology/Oncology, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
| | | | - Simona Orcesi
- Department of Brain and Behavioural Sciences, University of Pavia, Pavia, Italy
- Child Neurology and Psychiatry Unit, IRCCS Mondino Foundation, Pavia, Italy
| | - Luisa Chiapparini
- Neuroradiology Unit, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
| | - Patrizia Comoli
- Cell Factory, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
| | - Silvia Federici
- Division of Rheumatology, IRCCS Ospedale Pediatrico Bambino Gesù, Rome, Italy
| | - Marco Gattorno
- UOC Reumatologia E Malattie Autoinfiammatorie, IRCCS Istituto Giannina Gaslini, Genoa, Italy
| | - Monia Ginevrino
- Translational Cytogenomics Research Unit, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy
| | - Elisa Giorgio
- Department of Molecular Medicine, University of Pavia, Pavia, Italy
- Medical Genetics Unit, IRCCS Mondino Foundation, Pavia, Italy
| | - Valentina Matteo
- Laboratory of Immuno-Rheumatology, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy
| | | | - Davide Politano
- Department of Brain and Behavioural Sciences, University of Pavia, Pavia, Italy
- Child Neurology and Psychiatry Unit, IRCCS Mondino Foundation, Pavia, Italy
| | - Giusi Prencipe
- Laboratory of Immuno-Rheumatology, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy
| | - Fabio Sirchia
- Department of Molecular Medicine, University of Pavia, Pavia, Italy
- Medical Genetics Unit, IRCCS Mondino Foundation, Pavia, Italy
| | - Stefano Volpi
- UOC Reumatologia E Malattie Autoinfiammatorie, IRCCS Istituto Giannina Gaslini, Genoa, Italy
- Dipartimento Di Neuroscienze, Riabilitazione, Oftalmologia, Genetica e Scienze Materno-Infantili (DINOGMI), Università Degli Studi Di Genova, Genoa, Italy
| | - Cécile Masson
- Bioinformatics Core Facility, Paris-Cité University-Structure Fédérative de Recherche Necker, INSERM US24/CNRS UMS3633, Paris, France
| | - Gillian I Rice
- Division of Evolution and Genomic Sciences, School of Biological Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Manchester, UK
| | - Marie-Louise Frémond
- Laboratory of Neurogenetics and NeuroinflammationImagine Institute, INSERM UMR1163, Paris, France
- Department of Paediatric Hematology-Immunology and Rheumatology, Necker-Enfants Malades Hospital, AP-HP, Paris, France
- Reference Center for Rheumatic, AutoImmune and Systemic Diseases in Children (RAISE), Paris, France
| | - Alice Lepelley
- Laboratory of Neurogenetics and NeuroinflammationImagine Institute, INSERM UMR1163, Paris, France
| | - Joseph A Marsh
- MRC Human Genetics Unit, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, UK
| | - Yanick J Crow
- Laboratory of Neurogenetics and NeuroinflammationImagine Institute, INSERM UMR1163, Paris, France.
- MRC Human Genetics Unit, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, UK.
- University Paris Cité, Paris, France.
| |
Collapse
|
21
|
Kalliolias GD, Basdra EK, Papavassiliou AG. Targeting TLR Signaling Cascades in Systemic Lupus Erythematosus and Rheumatoid Arthritis: An Update. Biomedicines 2024; 12:138. [PMID: 38255243 PMCID: PMC10813148 DOI: 10.3390/biomedicines12010138] [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: 12/16/2023] [Revised: 01/06/2024] [Accepted: 01/08/2024] [Indexed: 01/24/2024] Open
Abstract
Evidence from animal models and human genetics implicates Toll-like Receptors (TLRs) in the pathogenesis of Systemic Lupus Erythematosus (SLE) and Rheumatoid Arthritis (RA). Endosomal TLRs sensing nucleic acids were proposed to induce lupus-promoting signaling in dendritic cells, B cells, monocytes, and macrophages. Ligation of TLR4 in synovial macrophages and fibroblast-like synoviocytes (FLSs) by endogenous ligands was suggested to induce local production of mediators that amplify RA synovitis. Inhibition of TLRs using antagonists or monoclonal antibodies (mAbs) that selectively prevent extracellular or endosomal TLR ligation has emerged as an attractive treatment strategy for SLE and RA. Despite the consistent success of selective inhibition of TLR ligation in animal models, DV-1179 (dual TLR7/9 antagonist) failed to achieve pharmacodynamic effectiveness in SLE, and NI-0101 (mAb against TLR4) failed to improve arthritis in RA. Synergistic cooperation between TLRs and functional redundancy in human diseases may require pharmacologic targeting of intracellular molecules that integrate signaling downstream of multiple TLRs. Small molecules inhibiting shared kinases involved in TLR signaling and peptidomimetics disrupting the assembly of common signalosomes ("Myddosome") are under development. Targeted degraders (proteolysis-targeting chimeras (PROTACs)) of intracellular molecules involved in TLR signaling are a new class of TLR inhibitors with promising preliminary data awaiting further clinical validation.
Collapse
Affiliation(s)
- George D. Kalliolias
- Hospital for Special Surgery, Arthritis & Tissue Degeneration, New York, NY 10021, USA;
- Department of Medicine, Weill Cornell Medical College, New York, NY 10065, USA
- Regeneron Pharmaceuticals, Inc., Tarrytown, NY 10591, USA
| | - Efthimia K. Basdra
- Department of Biological Chemistry, Medical School, National and Kapodistrian University of Athens, 11527 Athens, Greece;
| | - Athanasios G. Papavassiliou
- Department of Biological Chemistry, Medical School, National and Kapodistrian University of Athens, 11527 Athens, Greece;
| |
Collapse
|
22
|
Ni H, Wang Y, Yao K, Wang L, Huang J, Xiao Y, Chen H, Liu B, Yang CY, Zhao J. Cyclical palmitoylation regulates TLR9 signalling and systemic autoimmunity in mice. Nat Commun 2024; 15:1. [PMID: 38169466 PMCID: PMC10762000 DOI: 10.1038/s41467-023-43650-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Accepted: 11/15/2023] [Indexed: 01/05/2024] Open
Abstract
Toll-like receptor 9 (TLR9) recognizes self-DNA and plays intricate roles in systemic lupus erythematosus (SLE). However, the molecular mechanism regulating the endosomal TLR9 response is incompletely understood. Here, we report that palmitoyl-protein thioesterase 1 (PPT1) regulates systemic autoimmunity by removing S-palmitoylation from TLR9 in lysosomes. PPT1 promotes the secretion of IFNα by plasmacytoid dendritic cells (pDCs) and TNF by macrophages. Genetic deficiency in or chemical inhibition of PPT1 reduces anti-nuclear antibody levels and attenuates nephritis in B6.Sle1yaa mice. In healthy volunteers and patients with SLE, the PPT1 inhibitor, HDSF, reduces IFNα production ex vivo. Mechanistically, biochemical and mass spectrometry analyses demonstrated that TLR9 is S-palmitoylated at C258 and C265. Moreover, the protein acyltransferase, DHHC3, palmitoylates TLR9 in the Golgi, and regulates TLR9 trafficking to endosomes. Subsequent depalmitoylation by PPT1 facilitates the release of TLR9 from UNC93B1. Our results reveal a posttranslational modification cycle that controls TLR9 response and autoimmunity.
Collapse
Affiliation(s)
- Hai Ni
- Department of Rheumatology and Immunology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
- Department of Immunology and Microbiology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Yinuo Wang
- CAS Key Laboratory of Molecular Virology and Immunology, Shanghai Institute of Immunity and Infection, Chinese Academy of Sciences, Shanghai, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Kai Yao
- Department of Immunology and Microbiology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Ling Wang
- Department of Immunology and Microbiology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Jiancheng Huang
- Department of Immunology and Microbiology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Yongfang Xiao
- Department of Immunology and Microbiology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Hongyao Chen
- Department of Immunology and Microbiology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Bo Liu
- CAS Key Laboratory of Molecular Virology and Immunology, Shanghai Institute of Immunity and Infection, Chinese Academy of Sciences, Shanghai, China.
- Shanghai Huashen Institute of Microbes and Infections, Shanghai, China.
| | - Cliff Y Yang
- Department of Immunology and Microbiology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, Guangdong, China.
- Key Laboratory of Tropical Disease Control (Sun Yat-sen University), Ministry of Education, Guangzhou, China.
| | - Jijun Zhao
- Department of Rheumatology and Immunology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China.
| |
Collapse
|
23
|
Miyake K, Shibata T, Fukui R, Murakami Y, Sato R, Hiranuma R. Endosomal Toll-Like Receptors as Therapeutic Targets for Autoimmune Diseases. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2024; 1444:97-108. [PMID: 38467975 DOI: 10.1007/978-981-99-9781-7_7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/13/2024]
Abstract
Nucleic acid (NA)-sensing Toll-like receptors (TLRs) reside in the endosomal compartment of innate immune cells, such as macrophages and dendritic cells. NAs transported to the endosomal compartment are degraded by DNases and RNases. Degradation products, including single-stranded DNA, oligoRNA, and nucleosides, are recognized by TLR7, TLR8, and TLR9 to drive the defense responses against pathogens. NA degradation influences endosomal TLR responses by generating and degrading TLR ligands. TLR ligand accumulation because of impaired NA degradation causes constitutive TLR activation, leading to autoinflammatory and autoimmune diseases. Furthermore, some genes associated with these diseases promote endosomal TLR responses. Therefore, endosomal TLRs are promising therapeutic targets for TLR-mediated inflammatory diseases, and novel drugs targeting TLRs are being developed.
Collapse
Affiliation(s)
- Kensuke Miyake
- Division of Innate Immunity, Department of Microbiology and Immunology, The Institute of Medical Science, The University of Tokyo, Tokyo, Japan.
| | - Takuma Shibata
- Division of Innate Immunity, Department of Microbiology and Immunology, The Institute of Medical Science, The University of Tokyo, Tokyo, Japan
| | - Ryutaro Fukui
- Division of Innate Immunity, Department of Microbiology and Immunology, The Institute of Medical Science, The University of Tokyo, Tokyo, Japan
| | - Yusuke Murakami
- Faculty of Pharmacy, Department of Pharmaceutical Sciences and Research Institute of Pharmaceutical Sciences, Musashino University, Tokyo, Japan
| | - Ryota Sato
- Division of Innate Immunity, Department of Microbiology and Immunology, The Institute of Medical Science, The University of Tokyo, Tokyo, Japan
| | - Ryosuke Hiranuma
- Division of Innate Immunity, Department of Microbiology and Immunology, The Institute of Medical Science, The University of Tokyo, Tokyo, Japan
| |
Collapse
|
24
|
Ranjan S, Panda AK. Association of Toll-Like Receptor 7 (TLR7) Polymorphisms with Predisposition to Systemic Lupus Erythematosus (SLE): A Meta and Trial Sequential Analysis. Biochem Genet 2023:10.1007/s10528-023-10600-9. [PMID: 38103124 DOI: 10.1007/s10528-023-10600-9] [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: 06/25/2023] [Accepted: 11/13/2023] [Indexed: 12/17/2023]
Abstract
Systemic Lupus Erythematosus (SLE) is an autoimmune disorder characterized by autoantibody production and organ involvement. The role of toll-like receptor-7 in SLE is well established. Although genetic variations in the TLR-7 gene have been associated with an increased risk of developing SLE, the findings are not consistent. We performed a meta-analysis of previously published articles on four important single nucleotide polymorphisms in the TLR-7 gene (rs3853839, rs179008, rs179019, and rs179010) to reach a valid conclusion. Various literature databases, including PubMed, Science Direct, and Scopus, were scoured for eligible reports until May 10, 2023. GPower software v.3 was used to assess the power of individual reports included in the meta-analysis. Comprehensive Meta-analysis v3 software was used to perform all statistics. The publication biases in each genetic comparison model were investigated using funnel plots and Egger's regression test. To test heterogeneity, Cochrane Q statistics, probability value and I2 were used. Considering the predefined inclusion and exclusion criteria, the current study included a total of 10 eligible studies that included 15,472 SLE cases and 16,721 healthy controls. The meta-analysis revealed a significant association between TLR7 polymorphisms (rs179019 and rs179010) and susceptibility to SLE development. Other TLR7 polymorphisms (rs3853839 and rs179008), on the other hand, showed no significant association. Furthermore, the trial sequential analysis identified the need for additional case control studies for TLR-7 polymorphisms (rs3853839, rs179008, and rs179019) other than the rs179010 polymorphism. TLR7 variants for rs179010 and rs179019 are risk factor for the development of SLE. Further investigations are required to reach a valid conclusion.
Collapse
Affiliation(s)
- Shovit Ranjan
- University Department of Zoology, Kolhan University, Chaibasa, Jharkhand, 833202, India
| | - Aditya K Panda
- ImmGen EvSys Laboratory, Department of Biotechnology, Berhampur University, Bhanja Bihar, Berhampur, Odisha, 760007, India.
- Centre of Excellence on Bioprospecting of Ethnopharmaceuticals of Southern Odisha (CoE-BESO), Berhampur University, Bhanja Bihar, Berhampur, Odisha, India.
| |
Collapse
|
25
|
Rackaityte E, Proekt I, Miller HS, Ramesh A, Brooks JF, Kung AF, Mandel-Brehm C, Yu D, Zamecnik CR, Bair R, Vazquez SE, Sunshine S, Abram CL, Lowell CA, Rizzuto G, Wilson MR, Zikherman J, Anderson MS, DeRisi JL. Validation of a murine proteome-wide phage display library for identification of autoantibody specificities. JCI Insight 2023; 8:e174976. [PMID: 37934865 PMCID: PMC10795829 DOI: 10.1172/jci.insight.174976] [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: 08/21/2023] [Accepted: 10/25/2023] [Indexed: 11/09/2023] Open
Abstract
Autoimmunity is characterized by loss of tolerance to tissue-specific as well as systemic antigens, resulting in complex autoantibody landscapes. Here, we introduce and extensively validate the performance characteristics of a murine proteome-wide library for phage display immunoprecipitation and sequencing (PhIP-seq) in profiling mouse autoantibodies. This library was validated using 7 genetically distinct mouse lines across a spectrum of autoreactivity. Mice deficient in antibody production (Rag2-/- and μMT) were used to model nonspecific peptide enrichments, while cross-reactivity was evaluated using anti-ovalbumin B cell receptor-restricted OB1 mice as a proof of principle. The PhIP-seq approach was then utilized to interrogate 3 distinct autoimmune disease models. First, serum from Lyn-/- IgD+/- mice with lupus-like disease was used to identify nuclear and apoptotic bleb reactivities. Second, serum from nonobese diabetic (NOD) mice, a polygenic model of pancreas-specific autoimmunity, was enriched in peptides derived from both insulin and predicted pancreatic proteins. Lastly, Aire-/- mouse sera were used to identify numerous autoantigens, many of which were also observed in previous studies of humans with autoimmune polyendocrinopathy syndrome type 1 carrying recessive mutations in AIRE. These experiments support the use of murine proteome-wide PhIP-seq for antigenic profiling and autoantibody discovery, which may be employed to study a range of immune perturbations in mouse models of autoimmunity profiling.
Collapse
Affiliation(s)
| | | | - Haleigh S. Miller
- Department of Biochemistry and Biophysics
- Biological and Medical Informatics Program
| | - Akshaya Ramesh
- Weill Institute for Neurosciences, Department of Neurology, School of Medicine
| | - Jeremy F. Brooks
- Division of Rheumatology, Rosalind Russell and Ephraim P. Engleman Rheumatology Research Center, Department of Medicine, and
| | - Andrew F. Kung
- Department of Biochemistry and Biophysics
- Biological and Medical Informatics Program
| | | | - David Yu
- Diabetes Center, School of Medicine
| | - Colin R. Zamecnik
- Weill Institute for Neurosciences, Department of Neurology, School of Medicine
| | - Rebecca Bair
- Weill Institute for Neurosciences, Department of Neurology, School of Medicine
| | - Sara E. Vazquez
- Department of Biochemistry and Biophysics
- Diabetes Center, School of Medicine
| | | | - Clare L. Abram
- Department of Laboratory Medicine, UCSF, San Francisco, California, USA
| | | | - Gabrielle Rizzuto
- Human Oncology & Pathogenesis Program and Department of Pathology & Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, New York, USA
| | - Michael R. Wilson
- Weill Institute for Neurosciences, Department of Neurology, School of Medicine
| | - Julie Zikherman
- Division of Rheumatology, Rosalind Russell and Ephraim P. Engleman Rheumatology Research Center, Department of Medicine, and
| | | | - Joseph L. DeRisi
- Department of Biochemistry and Biophysics
- Chan Zuckerberg Biohub, San Francisco, California, USA
| |
Collapse
|
26
|
Junrui-Fu, Rong Z, Huang X, Wang J, Long X, Feng Q, Deng H. Gut dysbacteriosis induces expression differences in the adult head transcriptome of Spodoptera frugiperda in a sex-specific manner. BMC Microbiol 2023; 23:388. [PMID: 38057708 DOI: 10.1186/s12866-023-03089-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Accepted: 10/25/2023] [Indexed: 12/08/2023] Open
Abstract
Mounting evidence indicates that the gut microbiota influences the neurodevelopment and behavior of insects through the gut-brain axis. However, it is currently unclear whether the gut microbiota affect the head profiles and immune pathway in pests. Here, we find that gut bacteria is essential for the immune and neural development of adult Spodoptera frugiperda, which is an extremely destructive agricultural pest worldwide. 16 S rRNA sequencing analysis showed that antibiotics exposure significantly disturbed the composition and diversity of gut bacteria. Further transcriptomic analysis revealed that the adult head transcripts were greatly affected by gut dysbacteriosis, and differently expression genes critical for brain and neural development including A4galt, Tret1, nsun4, Galt, Mitofilin, SLC2A3, snk, GABRB3, Oamb and SLC6A1 were substantially repressed. Interestingly, the dysbacteriosis caused sex-specific differences in immune response. The mRNA levels of pll (serine/threonine protein kinase Pelle), PGRP (peptidoglycan-sensing receptor), CECA (cecropin A) and CECB (cecropin B) involved in Toll and Imd signaling pathway were drastically decreased in treated male adults' heads but not in female adults; however, genes of HIVEP2, ZNF131, inducible zinc finger protein 1-like and zinc finger protein 99-like encoding zinc-finger antiviral protein (ZAP) involved in the interferon (IFNα/β) pathway were significantly inhibited in treated female adults' heads. Collectively, these results demonstrate that gut microbiota may regulate head transcription and impact the S. frugiperda adults' heads through the immune pathway in a sex-specific manner. Our finding highlights the relationship between the gut microbiota and head immune systems of S. frugiperda adults, which is an astonishing similarity with the discoveries of other animals. Therefore, this is the basis for further research to understand the interactions between hosts and microorganisms via the gut-brain axis in S. frugiperda and other insects.
Collapse
Affiliation(s)
- Junrui-Fu
- Guangdong Key Laboratory of Insect Developmental Biology and Applied Technology, Guangzhou Key Laboratory of Insect Development Regulation and Application Research, Institute of Insect Science and Technology & School of Life Sciences, South China Normal University, Guangzhou, 510631, China
| | - Zixia Rong
- Guangdong Key Laboratory of Insect Developmental Biology and Applied Technology, Guangzhou Key Laboratory of Insect Development Regulation and Application Research, Institute of Insect Science and Technology & School of Life Sciences, South China Normal University, Guangzhou, 510631, China
| | - Ximei Huang
- Guangdong Key Laboratory of Insect Developmental Biology and Applied Technology, Guangzhou Key Laboratory of Insect Development Regulation and Application Research, Institute of Insect Science and Technology & School of Life Sciences, South China Normal University, Guangzhou, 510631, China
| | - Junhan Wang
- Guangdong Key Laboratory of Insect Developmental Biology and Applied Technology, Guangzhou Key Laboratory of Insect Development Regulation and Application Research, Institute of Insect Science and Technology & School of Life Sciences, South China Normal University, Guangzhou, 510631, China
| | - Xiaoyan Long
- Guangdong Key Laboratory of Insect Developmental Biology and Applied Technology, Guangzhou Key Laboratory of Insect Development Regulation and Application Research, Institute of Insect Science and Technology & School of Life Sciences, South China Normal University, Guangzhou, 510631, China
| | - Qili Feng
- Guangdong Key Laboratory of Insect Developmental Biology and Applied Technology, Guangzhou Key Laboratory of Insect Development Regulation and Application Research, Institute of Insect Science and Technology & School of Life Sciences, South China Normal University, Guangzhou, 510631, China
| | - Huimin Deng
- Guangdong Key Laboratory of Insect Developmental Biology and Applied Technology, Guangzhou Key Laboratory of Insect Development Regulation and Application Research, Institute of Insect Science and Technology & School of Life Sciences, South China Normal University, Guangzhou, 510631, China.
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, 510631, China.
- Guangmeiyuan R&D Center, Guangdong Provincial Key Laboratory of Insect Developmental Biology and Applied Technology, South China Normal University, Meizhou, 514779, China.
| |
Collapse
|
27
|
Venanzi FM, Bini M, Nuccio A, De Toma A, Lambertini M, Ogliari FR, Oresti S, Viganò MG, Brioschi E, Polignano M, Naldini MM, Riva S, Ferrara M, Fogale N, Damiano G, Russo V, Reni M, Veronesi G, Foggetti G, Conforti F, Bulotta A, Ferrara R. Sex dimorphism and cancer immunotherapy: May pregnancy solve the puzzle? Cancer Treat Rev 2023; 121:102648. [PMID: 37918169 DOI: 10.1016/j.ctrv.2023.102648] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Revised: 10/09/2023] [Accepted: 10/25/2023] [Indexed: 11/04/2023]
Abstract
In the immunoncology era, growing evidence has shown a clear sex dimorphism in antitumor immune response with a potential impact on outcomes upon immunecheckpoint blockade (ICI) in patients with cancer. Sex dimorphism could affect tumor microenvironment composition and systemic anticancer immunity; however, the modifications induced by sex are heterogeneous. From a clinical perspective, six metanalyses have explored the role of sex in cancer patients receiving ICI with conflicting results. Environmental and reproductive factors may further jeopardize the sex-related heterogeneity in anticancer immune response. In particular, pregnancy is characterized by orchestrated changes in the immune system, some of which could be long lasting. A persistence of memory T-cells with a potential fetal-antigen specificity has been reported both in human and mice, suggesting that a previous pregnancy may positively impact cancer development or response to ICI, in case of fetal-antigen sharing from tumor cells. On the other hand, a previous pregnancy may also be associated with a regulatory memory characterized by increased tolerance and anergy towards cancer-fetal common antigens. Finally, fetal-maternal microchimerism could represent an additional source of chronic exposure to fetal antigens and may have important immunological implications on cancer development and ICI activity. So far, the role of pregnancy dimorphism (nulliparous vs parous) in women and the impact of pregnancy-related variables remain largely underexplored in cancer patients. In this review, we summarize the evidence regarding sex and pregnancy dimorphism in the context of immune response and anticancer immunotherapy and advocate the importance of analyzing pregnancy variables on ICIs clinical trials.
Collapse
Affiliation(s)
- Francesco Maria Venanzi
- Department of Oncology, IRCCS San Raffaele Scientific Institute, Milan, Italy; Università Vita-Salute San Raffaele, Milan, Italy
| | - Marta Bini
- Medical Oncology Department, Fondazione IRCCS Istituto Nazionale Dei Tumori, Milan, Italy
| | - Antonio Nuccio
- Department of Oncology, IRCCS San Raffaele Scientific Institute, Milan, Italy; Università Vita-Salute San Raffaele, Milan, Italy
| | | | - Matteo Lambertini
- Department of Medical Oncology, Clinical di Oncologia Medica, IRCCS Ospedale Policlinico San Martino, Genova, Italy; Department of Internal Medicine and Medical Specialties (DiMI), School of Medicine, University of Genova, Genoa, Italy
| | - Francesca Rita Ogliari
- Department of Oncology, IRCCS San Raffaele Scientific Institute, Milan, Italy; Università Vita-Salute San Raffaele, Milan, Italy
| | - Sara Oresti
- Department of Oncology, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Maria Grazia Viganò
- Department of Oncology, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Elena Brioschi
- Department of Oncology, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Maggie Polignano
- Medical Oncology Department, Fondazione IRCCS Istituto Nazionale Dei Tumori, Milan, Italy
| | - Matteo Maria Naldini
- Department of Oncology, IRCCS San Raffaele Scientific Institute, Milan, Italy; Università Vita-Salute San Raffaele, Milan, Italy
| | - Silvia Riva
- Department of Oncology, IRCCS San Raffaele Scientific Institute, Milan, Italy; Università Vita-Salute San Raffaele, Milan, Italy
| | - Michele Ferrara
- Department of Oncology, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Nicola Fogale
- Department of Oncology, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Giuseppe Damiano
- Department of Oncology, IRCCS San Raffaele Scientific Institute, Milan, Italy; Università Vita-Salute San Raffaele, Milan, Italy
| | - Vincenzo Russo
- Department of Oncology, IRCCS San Raffaele Scientific Institute, Milan, Italy; Università Vita-Salute San Raffaele, Milan, Italy
| | - Michele Reni
- Department of Oncology, IRCCS San Raffaele Scientific Institute, Milan, Italy; Università Vita-Salute San Raffaele, Milan, Italy
| | - Giulia Veronesi
- Università Vita-Salute San Raffaele, Milan, Italy; Division of Thoracic Surgery, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Giorgia Foggetti
- Department of Oncology, IRCCS San Raffaele Scientific Institute, Milan, Italy; Università Vita-Salute San Raffaele, Milan, Italy
| | - Fabio Conforti
- Oncology Unit, Humanitas Gavazzeni, 24125 Bergamo, Italy
| | - Alessandra Bulotta
- Department of Oncology, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Roberto Ferrara
- Department of Oncology, IRCCS San Raffaele Scientific Institute, Milan, Italy; Università Vita-Salute San Raffaele, Milan, Italy.
| |
Collapse
|
28
|
Englert KA, Dyduch G, Kłosowicz A, Spałkowska M, Jaworek AK, Migacz-Gruszka K, Jarosz-Chudek A, Mercuri SR, Szpor J, Mazzoccoli G, Damiani G, Wojas-Pelc A. Cutaneous Toll-like Receptor 9 Pre-Defines Hydroxychloroquine Dosage in Patients with Both Discoid and Subacute Lupus Erythematosus. MEDICINA (KAUNAS, LITHUANIA) 2023; 59:2022. [PMID: 38004071 PMCID: PMC10673105 DOI: 10.3390/medicina59112022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Revised: 10/02/2023] [Accepted: 11/01/2023] [Indexed: 11/26/2023]
Abstract
Background and Objectives: Cutaneous lupus erythematosus (CLE) presents clinically heterogeneous manifestations, partially explained by the different expression of Toll-like receptors (TLRs) type 8 and 9, located to endosomal compartments where they are poised to recognize microbial nucleic acids. This disease is empirically treated with hydroxychloroquine (HCQ), which is hallmarked with a safe and effective profile, but induces a slow and sometimes clinically insufficient therapeutic response. Currently, no biomarkers predictive of response are validated or even proposed in the scientific literature. We aimed to evaluate endosomal TLR type 7, 8 and 9 as predictive biomarkers of HCQ efficacy. Materials and Methods: We conducted a case-control study comparing CLE patients retrospectively assigned to three subgroups based on 3-6-month Cutaneous LE Disease Area and Severity Index (CLASI) reduction upon treatment with HCQ (I = <40% vs. II = 40-80% vs. III = >80%). Before HCQ, lesional skin specimens were collected in untreated CLE and through immunohistochemistry; TLR-7, -8 and -9 expression was evaluated in the epidermis and the lymphocytic infiltrate was evaluated in the dermis. Results: Sixty-six lesional skin biopsies were compared with healthy controls. CLE patients displayed lower epidermal expression of total TLR 8 and 9 as well as infiltrating TLR-8, TLR9 + lymphocytes compared to controls. High HCQ responders differed from low responders for TLR-9 positivity (high vs. low) and for the lymphocytic dermal infiltrate (high vs. low). Conclusions: TLR9 could be envisaged as a possible biomarker to predict HCQ response level and dosage in CLE patients.
Collapse
Affiliation(s)
- Karolina A. Englert
- Department of Dermatology, University Hospital in Krakow, 31-501 Kraków, Poland; (K.A.E.); (A.K.); (M.S.); (A.K.J.); (K.M.-G.); (A.J.-C.); (A.W.-P.)
| | - Grzegorz Dyduch
- Department of Pathomorphology, Jagiellonian University Medical College in Krakow, 33-332 Kraków, Poland; (G.D.); (J.S.)
| | - Agata Kłosowicz
- Department of Dermatology, University Hospital in Krakow, 31-501 Kraków, Poland; (K.A.E.); (A.K.); (M.S.); (A.K.J.); (K.M.-G.); (A.J.-C.); (A.W.-P.)
| | - Magdalena Spałkowska
- Department of Dermatology, University Hospital in Krakow, 31-501 Kraków, Poland; (K.A.E.); (A.K.); (M.S.); (A.K.J.); (K.M.-G.); (A.J.-C.); (A.W.-P.)
| | - Andrzej Kazimierz Jaworek
- Department of Dermatology, University Hospital in Krakow, 31-501 Kraków, Poland; (K.A.E.); (A.K.); (M.S.); (A.K.J.); (K.M.-G.); (A.J.-C.); (A.W.-P.)
| | - Kamila Migacz-Gruszka
- Department of Dermatology, University Hospital in Krakow, 31-501 Kraków, Poland; (K.A.E.); (A.K.); (M.S.); (A.K.J.); (K.M.-G.); (A.J.-C.); (A.W.-P.)
| | - Aleksandra Jarosz-Chudek
- Department of Dermatology, University Hospital in Krakow, 31-501 Kraków, Poland; (K.A.E.); (A.K.); (M.S.); (A.K.J.); (K.M.-G.); (A.J.-C.); (A.W.-P.)
| | - Santo Raffaele Mercuri
- Unit of Dermatology, IRCCS San Raffaele Hospital, 20132 Milan, Italy;
- Italian Center of Precision Medicine and Chronic Inflammation, 20122 Milan, Italy
| | - Joanna Szpor
- Department of Pathomorphology, Jagiellonian University Medical College in Krakow, 33-332 Kraków, Poland; (G.D.); (J.S.)
| | - Gianluigi Mazzoccoli
- Division of Internal Medicine and Chronobiology Laboratory, Department of Medical Sciences, Fondazione IRCCS “Casa Sollievo della Sofferenza”, 71013 San Giovanni Rotondo, Italy
| | - Giovanni Damiani
- Unit of Dermatology, IRCCS San Raffaele Hospital, 20132 Milan, Italy;
- Italian Center of Precision Medicine and Chronic Inflammation, 20122 Milan, Italy
- Department of Biomedical, Surgical and Dental Sciences, University of Milan, 20122 Milan, Italy
| | - Anna Wojas-Pelc
- Department of Dermatology, University Hospital in Krakow, 31-501 Kraków, Poland; (K.A.E.); (A.K.); (M.S.); (A.K.J.); (K.M.-G.); (A.J.-C.); (A.W.-P.)
| |
Collapse
|
29
|
Hosseinzadeh S, Afshari S, Molaei S, Rezaei N, Dadkhah M. The role of genetics and gender specific differences in neurodegenerative disorders: Insights from molecular and immune landscape. J Neuroimmunol 2023; 384:578206. [PMID: 37813041 DOI: 10.1016/j.jneuroim.2023.578206] [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: 07/31/2023] [Revised: 09/09/2023] [Accepted: 09/23/2023] [Indexed: 10/11/2023]
Abstract
Neurodegenerative disorders (NDDs) are the most common neurological disorders with high prevalence and have significant socioeconomic implications. Understanding the underlying cellular and molecular mechanisms associated with the immune system can be effective in disease etiology, leading to more effective therapeutic approaches for both females and males. The central nervous system (CNS) actively participates in immune responses, both within and outside the CNS. Immune system activation is a common feature in NDDs. Gender-specific factors play a significant role in the prevalence, progression, and manifestation of NDDs. Neuroinflammation, in both inflammatory neurological and neurodegenerative conditions, is defined by the triggering of microglia and astrocyte cell activation. This results in the secretion of pro-inflammatory cytokines and chemokines. Numerous studies have documented the role of neuroinflammation in neurological diseases, highlighting the involvement of immune signaling pathways in disease development. Converging evidence support immune system involvement during neurodegeneration in NDDs. In this review, we summarize emerging evidence that reveals gender-dependent differences in immune responses related to NDDs. Also, we highlight sex differences in immune responses and discuss how these sex-specific influences can increase the risk of NDDs. Understanding the role of gender-specific factors can aid in developing targeted therapeutic strategies and improving patient outcomes. Ultimately, the better understanding of these mechanisms contributed to sex-dependent immune response in NDDs, can be critically usful in targeting of immune signaling cascades in such disorders. In this regard, sex-related immune responses in NDDs may be promising and effective targets in therapeutic strategies.
Collapse
Affiliation(s)
- Shahnaz Hosseinzadeh
- Department of Microbiology & Immunology, School of Medicine, Ardabil University of Medical Sciences, Iran; Cancer Immunology and Immunotherapy Research Center, Ardabil University of Medical Sciences, Ardabil, Iran
| | - Salva Afshari
- Students Research Committee, Pharmacy School, Ardabil University of Medical Sciences, Ardabil, Iran
| | - Soheila Molaei
- Zoonoses Research Center, Ardabil University of Medical Sciences, Ardabil, Iran
| | - Nima Rezaei
- Research Center for Immunodeficiencies, Children's Medical Center Hospital, Tehran University of Medical Sciences, Tehran 1419733151, Iran; Department of Immunology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran; Network of Immunity in Infection, Malignancy and Autoimmunity (NIIMA), Universal Scientific Education Research Network (USERN), Tehran, Iran
| | - Masoomeh Dadkhah
- Pharmaceutical Sciences Research Center, Ardabil University of Medical Sciences, Ardabil, Iran.
| |
Collapse
|
30
|
Pellerin A, Tan Y, Lu S, Bonegio RG, Rifkin IR. Genetic Reduction of IRF5 Expression after Disease Initiation Reduces Disease in a Mouse Lupus Model by Impacting Systemic and End-Organ Pathogenic Pathways. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2023; 211:1308-1319. [PMID: 37721418 DOI: 10.4049/jimmunol.2300298] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/01/2023] [Accepted: 08/28/2023] [Indexed: 09/19/2023]
Abstract
Gain-of-function polymorphisms in the transcription factor IFN regulatory factor 5 (IRF5) are associated with an increased risk of developing systemic lupus erythematosus. Global homozygous or heterozygous deficiency of IRF5 from birth confers protection in many lupus mouse models. However, less is known about the effects of IRF5 targeting after autoimmunity has already developed. This is an important point to clarify when considering IRF5 as a potential therapeutic target in lupus. In this study, we demonstrate that genetic reduction of IRF5 expression after disease initiation reduces disease severity in the FcγRIIB-/- Y-linked autoimmune accelerating mouse lupus model. Reduction of IRF5 expression resulted in a decrease in splenomegaly and lymphadenopathy and a reduction in splenic B cell activation and plasmablast numbers. Splenic T cell activation and differentiation were also impacted as demonstrated by an increase in the number of naive CD4+ and CD8+ T cells and a reduction in the number of memory/effector CD4+ and CD8+ T cells. Although serum antinuclear autoantibody levels were not altered, reduction in IRF5 expression led to decreased immune complex deposition and complement activation, diminished glomerular and interstitial disease, and a reduction in immune cell infiltrate in the kidney. Mechanistically, myeloid cells in the kidney produced less inflammatory cytokines after TLR7 and TLR9 activation. Overall, we demonstrate that genetic reduction of IRF5 expression during an active autoimmune process is sufficient to reduce disease severity. Our data support consideration of IRF5 as a therapeutic target and suggest that approaches targeting IRF5 in systemic lupus erythematosus may need to impact IRF5 activity both systemically and in target organs.
Collapse
Affiliation(s)
- Alex Pellerin
- Renal Section, Department of Medicine, Boston Medical Center, Boston, MA
| | - Ying Tan
- Renal Section, Department of Medicine, Boston Medical Center, Boston, MA
| | - Simon Lu
- Renal Section, Department of Medicine, Boston Medical Center, Boston, MA
| | - Ramon G Bonegio
- Renal Section, Department of Medicine, Boston Medical Center, Boston, MA
- Renal Section, Department of Medicine, VA Boston Healthcare System, Boston
| | - Ian R Rifkin
- Renal Section, Department of Medicine, Boston Medical Center, Boston, MA
- Renal Section, Department of Medicine, VA Boston Healthcare System, Boston
| |
Collapse
|
31
|
Abstract
Systemic lupus erythematosus (SLE) is a severe multisystem autoimmune disease that can cause injury in almost every body system. While considered a classic example of autoimmunity, it is still relatively poorly understood. Treatment with immunosuppressive agents is challenging, as many agents are relatively non-specific, and the underlying disease is characterized by unpredictable flares and remissions. This State of The Art Review provides a comprehensive current summary of systemic lupus erythematosus based on recent literature. In basic and translational science, this summary includes the current state of genetics, epigenetics, differences by ancestry, and updates about the molecular and immunological pathogenesis of systemic lupus erythematosus. In clinical science, the summary includes updates in diagnosis and classification, clinical features and subphenotypes, and current guidelines and strategies for treatment. The paper also provides a comprehensive review of the large number of recent clinical trials in systemic lupus erythematosus. Current knowns and unknowns are presented, and potential directions for the future are suggested. Improved knowledge of immunological pathogenesis and the molecular differences that exist between patients should help to personalize treatment, minimize side effects, and achieve better outcomes in this difficult disease.
Collapse
Affiliation(s)
- Eric F Morand
- School of Clinical Sciences, Monash University, Melbourne, VIC, Australia
- Department of Rheumatology, Monash Health, Melbourne, VIC, Australia
| | | | | | | |
Collapse
|
32
|
Maria NI, Papoin J, Raparia C, Sun Z, Josselsohn R, Lu A, Katerji H, Syeda MM, Polsky D, Paulson R, Kalfa T, Barnes BJ, Zhang W, Blanc L, Davidson A. Human TLR8 induces inflammatory bone marrow erythromyeloblastic islands and anemia in SLE-prone mice. Life Sci Alliance 2023; 6:e202302241. [PMID: 37495396 PMCID: PMC10372407 DOI: 10.26508/lsa.202302241] [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: 06/27/2023] [Revised: 07/04/2023] [Accepted: 07/06/2023] [Indexed: 07/28/2023] Open
Abstract
Anemia commonly occurs in systemic lupus erythematosus, a disease characterized by innate immune activation by nucleic acids. Overactivation of cytoplasmic sensors by self-DNA or RNA can cause erythroid cell death, while sparing other hematopoietic cell lineages. Whereas chronic inflammation is involved in this mechanism, less is known about the impact of systemic lupus erythematosus on the BM erythropoietic niche. We discovered that expression of the endosomal ssRNA sensor human TLR8 induces fatal anemia in Sle1.Yaa lupus mice. We observed that anemia was associated with a decrease in erythromyeloblastic islands and a block in differentiation at the CFU-E to proerythroblast transition in the BM. Single-cell RNAseq analyses of isolated BM erythromyeloblastic islands from human TLR8-expressing mice revealed that genes associated with essential central macrophage functions including adhesion and provision of nutrients were down-regulated. Although compensatory stress erythropoiesis occurred in the spleen, red blood cell half-life decreased because of hemophagocytosis. These data implicate the endosomal RNA sensor TLR8 as an additional innate receptor whose overactivation causes acquired failure of erythropoiesis via myeloid cell dysregulation.
Collapse
Affiliation(s)
- Naomi I Maria
- Institute of Molecular Medicine, Feinstein Institutes for Medical Research, Manhasset, NY, USA
- Donald and Barbara Zucker School of Medicine at Northwell Health, Hempstead, NY, USA
| | - Julien Papoin
- Institute of Molecular Medicine, Feinstein Institutes for Medical Research, Manhasset, NY, USA
- Donald and Barbara Zucker School of Medicine at Northwell Health, Hempstead, NY, USA
| | - Chirag Raparia
- Institute of Molecular Medicine, Feinstein Institutes for Medical Research, Manhasset, NY, USA
- Donald and Barbara Zucker School of Medicine at Northwell Health, Hempstead, NY, USA
| | - Zeguo Sun
- Department of Medicine, Mount Sinai Medical Center, New York, NY, USA
| | - Rachel Josselsohn
- Institute of Molecular Medicine, Feinstein Institutes for Medical Research, Manhasset, NY, USA
| | - Ailing Lu
- Institute of Molecular Medicine, Feinstein Institutes for Medical Research, Manhasset, NY, USA
| | - Hani Katerji
- Department of Pathology, University of Rochester, Rochester, NY, USA
| | - Mahrukh M Syeda
- The Ronald O. Perelman Department of Dermatology, New York University Grossman School of Medicine, New York, NY, USA
| | - David Polsky
- The Ronald O. Perelman Department of Dermatology, New York University Grossman School of Medicine, New York, NY, USA
| | - Robert Paulson
- Department of Veterinary and Biomedical Sciences, Penn State College of Agricultural Sciences, University Park, PA, USA
| | - Theodosia Kalfa
- Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - Betsy J Barnes
- Institute of Molecular Medicine, Feinstein Institutes for Medical Research, Manhasset, NY, USA
- Donald and Barbara Zucker School of Medicine at Northwell Health, Hempstead, NY, USA
| | - Weijia Zhang
- Department of Medicine, Mount Sinai Medical Center, New York, NY, USA
| | - Lionel Blanc
- Institute of Molecular Medicine, Feinstein Institutes for Medical Research, Manhasset, NY, USA
- Donald and Barbara Zucker School of Medicine at Northwell Health, Hempstead, NY, USA
| | - Anne Davidson
- Institute of Molecular Medicine, Feinstein Institutes for Medical Research, Manhasset, NY, USA
- Donald and Barbara Zucker School of Medicine at Northwell Health, Hempstead, NY, USA
| |
Collapse
|
33
|
Youness A, Cenac C, Faz-López B, Grunenwald S, Barrat FJ, Chaumeil J, Mejía JE, Guéry JC. TLR8 escapes X chromosome inactivation in human monocytes and CD4 + T cells. Biol Sex Differ 2023; 14:60. [PMID: 37723501 PMCID: PMC10506212 DOI: 10.1186/s13293-023-00544-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Accepted: 09/04/2023] [Indexed: 09/20/2023] Open
Abstract
BACKGROUND Human endosomal Toll-like receptors TLR7 and TLR8 recognize self and non-self RNA ligands, and are important mediators of innate immunity and autoimmune pathogenesis. TLR7 and TLR8 are, respectively, encoded by adjacent X-linked genes. We previously established that TLR7 evades X chromosome inactivation (XCI) in female immune cells. Whether TLR8 also evades XCI, however, has not yet been explored. METHOD In the current study, we used RNA fluorescence in situ hybridization (RNA FISH) to directly visualize, on a single-cell basis, primary transcripts of TLR7 and TLR8 relative to X chromosome territories in CD14+ monocytes and CD4+ T lymphocytes from women, Klinefelter syndrome (KS) men, and euploid men. To assign X chromosome territories in cells lacking robust expression of a XIST compartment, we designed probes specific for X-linked genes that do not escape XCI and therefore robustly label the active X chromosome. We also assessed whether XCI escape of TLR8 was associated with sexual dimorphism in TLR8 protein expression by western blot and flow cytometry. RESULTS Using RNA FISH, we show that TLR8, like TLR7, evades XCI in immune cells, and that cells harboring simultaneously TLR7 and TLR8 transcript foci are more frequent in women and KS men than in euploid men, resulting in a sevenfold difference in frequency. This transcriptional bias was again observable when comparing the single X of XY males with the active X of cells from females or KS males. Interestingly, TLR8 protein expression was significantly higher in female mononuclear blood cells, including all monocyte subsets, than in male cells. CONCLUSIONS TLR8, mirroring TLR7, escapes XCI in human monocytes and CD4+ T cells. Co-dependent transcription from the active X chromosome and escape from XCI could both contribute to higher TLR8 protein abundance in female cells, which may have implications for the response to viruses and bacteria, and the risk of developing inflammatory and autoimmune diseases.
Collapse
Affiliation(s)
- Ali Youness
- Institut Toulousain des Maladies Infectieuses et Inflammatoires (INFINITY), UMR 1291 INSERM, CNRS, Hôpital Purpan, Université de Toulouse, 31024 Toulouse, France
| | - Claire Cenac
- Institut Toulousain des Maladies Infectieuses et Inflammatoires (INFINITY), UMR 1291 INSERM, CNRS, Hôpital Purpan, Université de Toulouse, 31024 Toulouse, France
| | - Berenice Faz-López
- Institut Toulousain des Maladies Infectieuses et Inflammatoires (INFINITY), UMR 1291 INSERM, CNRS, Hôpital Purpan, Université de Toulouse, 31024 Toulouse, France
| | - Solange Grunenwald
- Service d’Endocrinologie, Maladies Métaboliques et Nutrition, Hôpital Larrey, Centre Hospitalier Universitaire (CHU) de Toulouse, 31059 Toulouse, France
| | - Franck J. Barrat
- Hospital for Special Surgery, HSS Research Institute and David Z. Rosensweig Genomics Research Center, New York, NY 10021 USA
- Department of Microbiology and Immunology, Weill Cornell Medical College of Cornell University, New York, NY 10021 USA
| | - Julie Chaumeil
- INSERM, CNRS, Université Paris Cité, Institut Cochin, 75014 Paris, France
| | - José Enrique Mejía
- Institut Toulousain des Maladies Infectieuses et Inflammatoires (INFINITY), UMR 1291 INSERM, CNRS, Hôpital Purpan, Université de Toulouse, 31024 Toulouse, France
| | - Jean-Charles Guéry
- Institut Toulousain des Maladies Infectieuses et Inflammatoires (INFINITY), UMR 1291 INSERM, CNRS, Hôpital Purpan, Université de Toulouse, 31024 Toulouse, France
| |
Collapse
|
34
|
Ren W, Zhao L, Sun Y, Wang X, Shi X. HMGB1 and Toll-like receptors: potential therapeutic targets in autoimmune diseases. Mol Med 2023; 29:117. [PMID: 37667233 PMCID: PMC10478470 DOI: 10.1186/s10020-023-00717-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2023] [Accepted: 08/14/2023] [Indexed: 09/06/2023] Open
Abstract
HMGB1, a nucleoprotein, is expressed in almost all eukaryotic cells. During cell activation and cell death, HMGB1 can function as an alarm protein (alarmin) or damage-associated molecular pattern (DAMP) and mediate early inflammatory and immune response when it is translocated to the extracellular space. The binding of extracellular HMGB1 to Toll-like receptors (TLRs), such as TLR2 and TLR4 transforms HMGB1 into a pro-inflammatory cytokine, contributing to the occurrence and development of autoimmune diseases. TLRs, which are members of a family of pattern recognition receptors, can bind to endogenous DAMPs and activate the innate immune response. Additionally, TLRs are key signaling molecules mediating the immune response and play a critical role in the host defense against pathogens and the maintenance of immune balance. HMGB1 and TLRs are reported to be upregulated in several autoimmune diseases, such as rheumatoid arthritis, systemic lupus erythematosus, type 1 diabetes mellitus, and autoimmune thyroid disease. The expression levels of HMGB1 and some TLRs are upregulated in tissues of patients with autoimmune diseases and animal models of autoimmune diseases. The suppression of HMGB1 and TLRs inhibits the progression of inflammation in animal models. Thus, HMGB1 and TLRs are indispensable biomarkers and important therapeutic targets for autoimmune diseases. This review provides comprehensive strategies for treating or preventing autoimmune diseases discovered in recent years.
Collapse
Affiliation(s)
- Wenxuan Ren
- Department of Endocrinology, Shengjing Hospital of China Medical University, Shenyang, 110001, Liaoning, China
| | - Lei Zhao
- Department of Laboratory Medicine, The First Hospital of China Medical University, Shenyang, 110001, Liaoning, China
| | - Ying Sun
- Department of Endocrinology, Shengjing Hospital of China Medical University, Shenyang, 110001, Liaoning, China
| | - Xichang Wang
- Department of Endocrinology, Shengjing Hospital of China Medical University, Shenyang, 110001, Liaoning, China
| | - Xiaoguang Shi
- Department of Endocrinology, Shengjing Hospital of China Medical University, Shenyang, 110001, Liaoning, China.
| |
Collapse
|
35
|
Dhalech AH, Condotta SA, Pattnaik A, Corn C, Richer MJ, Robinson CM. Coxsackievirus B3 elicits a sex-specific CD8+ T cell response which protects female mice. PLoS Pathog 2023; 19:e1011465. [PMID: 37669302 PMCID: PMC10503745 DOI: 10.1371/journal.ppat.1011465] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Revised: 09/15/2023] [Accepted: 06/06/2023] [Indexed: 09/07/2023] Open
Abstract
Sex is a significant contributor to the outcome of human infections. Males are frequently more susceptible to viral, bacterial, and fungal infections, often attributed to weaker immune responses. In contrast, a heightened immune response in females enables better pathogen elimination but leaves females more predisposed to autoimmune diseases. Unfortunately, the underlying basis for sex-specific immune responses remains poorly understood. Here, we show a sex difference in the CD8+ T cell response to an enteric virus, Coxsackievirus B3 (CVB3). We found that CVB3 induced expansion of CD8+ T cells in female mice but not in male mice. CVB3 also increased the proportion and number of CD11ahiCD62Llo CD8+ T cells in female mice, indicative of activation. This response was independent of the inoculation route and type I interferon. Using a recombinant CVB3 virus expressing a model CD8+ T cell epitope, we found that the expansion of CD8+ T cells in females is viral-specific and not due to bystander activation. Finally, the depletion of CD8+ T cells, prior to infection, led to enhanced mortality, indicating that CD8+ T cells are protective against CVB3 in female mice. These data demonstrate that CVB3 induces a CD8+ T cell response in female mice and highlight the importance of sex-specific immune responses to viral pathogens.
Collapse
Affiliation(s)
- Adeeba H. Dhalech
- Department of Microbiology and Immunology, Indiana University School of Medicine, Indianapolis, Indiana, United States of America
| | - Stephanie A. Condotta
- Department of Microbiology and Immunology, Indiana University School of Medicine, Indianapolis, Indiana, United States of America
| | - Aryamav Pattnaik
- Department of Microbiology and Immunology, Indiana University School of Medicine, Indianapolis, Indiana, United States of America
| | - Caleb Corn
- Department of Microbiology and Immunology, Indiana University School of Medicine, Indianapolis, Indiana, United States of America
| | - Martin J. Richer
- Department of Microbiology and Immunology, Indiana University School of Medicine, Indianapolis, Indiana, United States of America
| | - Christopher M. Robinson
- Department of Microbiology and Immunology, Indiana University School of Medicine, Indianapolis, Indiana, United States of America
| |
Collapse
|
36
|
Sadighi Akha AA, Csomós K, Ujházi B, Walter JE, Kumánovics A. Evolving Approach to Clinical Cytometry for Immunodeficiencies and Other Immune Disorders. Clin Lab Med 2023; 43:467-483. [PMID: 37481324 DOI: 10.1016/j.cll.2023.05.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/24/2023]
Abstract
Primary immunodeficiencies were initially identified on the basis of recurrent, severe or unusual infections. Subsequently, it was noted that these diseases can also manifest with autoimmunity, autoinflammation, allergy, lymphoproliferation and malignancy, hence a conceptual change and their renaming as inborn errors of immunity. Ongoing advances in flow cytometry provide the opportunity to expand or modify the utility and scope of existing laboratory tests in this field to mirror this conceptual change. Here we have used the B cell subset, variably known as CD21low B cells, age-associated B cells and T-bet+ B cells, as an example to demonstrate this possibility.
Collapse
Affiliation(s)
- Amir A Sadighi Akha
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA
| | - Krisztián Csomós
- Division of Pediatric Allergy/Immunology, University of South Florida, Johns Hopkins All Children's Hospital, St. Petersburg, FL, USA
| | - Boglárka Ujházi
- Division of Pediatric Allergy/Immunology, University of South Florida, Johns Hopkins All Children's Hospital, St. Petersburg, FL, USA
| | - Jolán E Walter
- Division of Pediatric Allergy/Immunology, University of South Florida, Johns Hopkins All Children's Hospital, St. Petersburg, FL, USA
| | - Attila Kumánovics
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA.
| |
Collapse
|
37
|
Roth L, Michl P, Rosendahl J. [Sex-specific differences in gastroenterological diseases]. INNERE MEDIZIN (HEIDELBERG, GERMANY) 2023; 64:736-743. [PMID: 36884055 DOI: 10.1007/s00108-023-01491-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 01/31/2023] [Indexed: 03/09/2023]
Abstract
Diseases of the gastrointestinal tract present with substantial sex differences that have a potential impact on patient outcome. This fact is not sufficiently addressed either in basic research or in clinical studies. For example, most animal studies utilize male animals. Despite differences in incidence, sex may affect complication rates, prognosis, or therapeutic response. The incidence of gastrointestinal cancers is frequently higher in males, but this observation cannot solely rely on a distinct risk behaviour. Here, differences in immune response and p53 signalling may be factors responsible for this finding. Nevertheless, taking sex differences into account and improving our understanding of relevant mechanisms is crucial and will most likely have a substantial impact on disease outcome. This overview aims to highlight sex differences in the context of various gastroenterological diseases, primarily to enhance awareness. Attention to sex-specific differences is essential to improve individualized treatment.
Collapse
Affiliation(s)
- Laura Roth
- Universitätsklinik und Poliklinik für Innere Medizin I, Martin-Luther-Universität Halle-Wittenberg, Ernst-Grube-Str. 40, 06120, Halle (Saale), Deutschland.
- Department of Cancer Biology, Dana Farber Cancer Institute, Boston, MA, USA.
- Department of Cell Biology, Harvard Medical School, Boston, MA, USA.
| | - Patrick Michl
- Universitätsklinik und Poliklinik für Innere Medizin I, Martin-Luther-Universität Halle-Wittenberg, Ernst-Grube-Str. 40, 06120, Halle (Saale), Deutschland
- Klinik für Innere Medizin IV, Universitätsklinikum Heidelberg, Heidelberg, Deutschland
| | - Jonas Rosendahl
- Universitätsklinik und Poliklinik für Innere Medizin I, Martin-Luther-Universität Halle-Wittenberg, Ernst-Grube-Str. 40, 06120, Halle (Saale), Deutschland.
| |
Collapse
|
38
|
Gavin AL, Blane TR, Thinnes TC, Gerlt E, Marshak-Rothstein A, Huang D, Nemazee D. Disease in the Pld4thss/thss Model of Murine Lupus Requires TLR9. Immunohorizons 2023; 7:577-586. [PMID: 37555846 PMCID: PMC10441812 DOI: 10.4049/immunohorizons.2300058] [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: 07/21/2023] [Accepted: 07/24/2023] [Indexed: 08/10/2023] Open
Abstract
Phospholipase D4 (PLD4) is an endolysosomal exonuclease of ssRNA and ssDNA, rather than a phospholipase as its name suggests. Human polymorphisms in the PLD4 gene have been linked by genome-wide association studies to systemic sclerosis, rheumatoid arthritis, and systemic lupus erythematosus. However, B6.129 Pld4-/- mice develop features of a distinct disease, macrophage activation syndrome, which is reversed in mice mutated in TLR9. In this article, we compare a Pld4 null mutant identified on the BALB/c background, Pld4thss/thss, which has distinct phenotypes: short stature, thin hair, and features of systemic lupus erythematosus. All phenotypes analyzed were largely normalized in Pld4thss/thssTlr9-/- mice. Thus, Pld4thss/thss represents a rare model in which mouse lupus etiology is TLR9 dependent. Compared with PLD4-deficient B6 mice, Pld4thss/thss mice had elevated levels of serum IgG, IgG anti-dsDNA autoantibodies, BAFF, and IFN-γ and elevated B cell numbers. Overall, the data suggest that PLD4 deficiency can lead to a diverse array of rheumatological abnormalities depending upon background-modifying genes, and that these diseases of PLD4 deficiency are largely driven by TLR9 recognition of ssDNA.
Collapse
Affiliation(s)
- Amanda L. Gavin
- Department of Immunology and Microbiology, The Scripps Research Institute, La Jolla, CA 92037, USA
| | - Tanya R. Blane
- Department of Immunology and Microbiology, The Scripps Research Institute, La Jolla, CA 92037, USA
| | - Theresa C. Thinnes
- Department of Immunology and Microbiology, The Scripps Research Institute, La Jolla, CA 92037, USA
| | | | | | - Deli Huang
- Department of Immunology and Microbiology, The Scripps Research Institute, La Jolla, CA 92037, USA
- Life Sciences Institute, Zhejiang University, Hangzhou, China
| | - David Nemazee
- Department of Immunology and Microbiology, The Scripps Research Institute, La Jolla, CA 92037, USA
| |
Collapse
|
39
|
Lehnen N, Hallek M. [Sex-specific differences of special tumor diseases]. INNERE MEDIZIN (HEIDELBERG, GERMANY) 2023; 64:717-726. [PMID: 37458764 PMCID: PMC10366284 DOI: 10.1007/s00108-023-01551-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 06/02/2023] [Indexed: 07/25/2023]
Abstract
BACKGROUND Numerous data show that sex and gender have gained increasing importance in precision medicine as relevant modulators of specific oncological and hematological diseases. The purpose of this article is to provide a summary of the current state of knowledge on sex differences in the incidence and outcome of specific malignancies and to further elucidate possible underlying causes. MATERIAL AND METHODS Evaluation and discussion of basic research studies, meta-analyses, and clinical trials. RESULTS There are significant sex-specific differences in the incidence, response rates, and mortality for a variety of oncological diseases. For the most part, men have poorer outcomes, whereas women have higher treatment-associated toxicities and distinct presentations at younger ages. Hormonal, immunological, and pharmacological causes are suspected. CONCLUSION Advanced patient-individualized treatment in oncology and hematology will be measured in the future by the implementation of the existing relevant sex differences in the clinical practice and further investigations on underlying mechanisms in studies in order to guarantee and to optimize the best possible treatment for oncological patients in the future.
Collapse
Affiliation(s)
- Nathalie Lehnen
- Klinik I für Innere Medizin, Universitätsklinikum Köln (AöR), Kerpener Str. 62, 50937, Köln, Deutschland.
| | - Michael Hallek
- Klinik I für Innere Medizin, Universitätsklinikum Köln (AöR), Kerpener Str. 62, 50937, Köln, Deutschland
| |
Collapse
|
40
|
Crow MK. Pathogenesis of systemic lupus erythematosus: risks, mechanisms and therapeutic targets. Ann Rheum Dis 2023; 82:999-1014. [PMID: 36792346 DOI: 10.1136/ard-2022-223741] [Citation(s) in RCA: 59] [Impact Index Per Article: 59.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Accepted: 02/01/2023] [Indexed: 02/17/2023]
Abstract
Research elucidating the pathogenesis of systemic lupus erythematosus (SLE) has defined two critical families of mediators, type I interferon (IFN-I) and autoantibodies targeting nucleic acids and nucleic acid-binding proteins, as fundamental contributors to the disease. On the fertile background of significant genetic risk, a triggering stimulus, perhaps microbial, induces IFN-I, autoantibody production or most likely both. When innate and adaptive immune system cells are engaged and collaborate in the autoimmune response, clinical SLE can develop. This review describes recent data from genetic analyses of patients with SLE, along with current studies of innate and adaptive immune function that contribute to sustained IFN-I pathway activation, immune activation and autoantibody production, generation of inflammatory mediators and tissue damage. The goal of these studies is to understand disease mechanisms, identify therapeutic targets and stimulate development of therapeutics that can achieve improved outcomes for patients.
Collapse
Affiliation(s)
- Mary K Crow
- Mary Kirkland Center for Lupus Research, Hospital for Special Surgery, New York, New York, USA
| |
Collapse
|
41
|
Polcz VE, Barrios EL, Chapin B, Price C, Nagpal R, Chakrabarty P, Casadesus G, Foster T, Moldawer L, Efron PA. Sex, sepsis and the brain: defining the role of sexual dimorphism on neurocognitive outcomes after infection. Clin Sci (Lond) 2023; 137:963-978. [PMID: 37337946 PMCID: PMC10285043 DOI: 10.1042/cs20220555] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Revised: 05/30/2023] [Accepted: 06/07/2023] [Indexed: 06/21/2023]
Abstract
Sexual dimorphisms exist in multiple domains, from learning and memory to neurocognitive disease, and even in the immune system. Male sex has been associated with increased susceptibility to infection, as well as increased risk of adverse outcomes. Sepsis remains a major source of morbidity and mortality globally, and over half of septic patients admitted to intensive care are believed to suffer some degree of sepsis-associated encephalopathy (SAE). In the short term, SAE is associated with an increased risk of in-hospital mortality, and in the long term, has the potential for significant impairment of cognition, memory, and acceleration of neurocognitive disease. Despite increasing information regarding sexual dimorphism in neurologic and immunologic systems, research into these dimorphisms in sepsis-associated encephalopathy remains critically understudied. In this narrative review, we discuss how sex has been associated with brain morphology, chemistry, and disease, sexual dimorphism in immunity, and existing research into the effects of sex on SAE.
Collapse
Affiliation(s)
- Valerie E. Polcz
- Department of Surgery and Sepsis and Critical Illness Research Center, University of Florida College of Medicine, Gainesville, Florida, U.S.A
| | - Evan L. Barrios
- Department of Surgery and Sepsis and Critical Illness Research Center, University of Florida College of Medicine, Gainesville, Florida, U.S.A
| | - Benjamin Chapin
- Department of Neurology, University of Florida College of Medicine, Gainesville, Florida, U.S.A
| | - Catherine C. Price
- Department of Clinical and Health Psychology, University of Florida College of Public Health and Health Professions, Gainesville, Florida, U.S.A
| | - Ravinder Nagpal
- Florida State University College of Health and Human Sciences, Tallahassee, Florida, U.S.A
| | - Paramita Chakrabarty
- Department of Neuroscience, University of Florida College of Medicine, Gainesville, Florida, U.S.A
| | - Gemma Casadesus
- Department of Pharmacology and Therapeutics, University of Florida College of Medicine, Gainesville, Florida, U.S.A
| | - Thomas Foster
- Department of Neuroscience, University of Florida College of Medicine, Gainesville, Florida, U.S.A
| | - Lyle L. Moldawer
- Department of Surgery and Sepsis and Critical Illness Research Center, University of Florida College of Medicine, Gainesville, Florida, U.S.A
| | - Philip A. Efron
- Department of Surgery and Sepsis and Critical Illness Research Center, University of Florida College of Medicine, Gainesville, Florida, U.S.A
| |
Collapse
|
42
|
Krueger K, Lamenza F, Gu H, El-Hodiri H, Wester J, Oberdick J, Fischer AJ, Oghumu S. Sex differences in susceptibility to substance use disorder: Role for X chromosome inactivation and escape? Mol Cell Neurosci 2023; 125:103859. [PMID: 37207894 PMCID: PMC10286730 DOI: 10.1016/j.mcn.2023.103859] [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: 12/26/2022] [Revised: 05/01/2023] [Accepted: 05/08/2023] [Indexed: 05/21/2023] Open
Abstract
There is a sex-based disparity associated with substance use disorders (SUDs) as demonstrated by clinical and preclinical studies. Females are known to escalate from initial drug use to compulsive drug-taking behavior (telescoping) more rapidly, and experience greater negative withdrawal effects than males. Although these biological differences have largely been attributed to sex hormones, there is evidence for non-hormonal factors, such as the influence of the sex chromosome, which underlie sex disparities in addiction behavior. However, genetic and epigenetic mechanisms underlying sex chromosome influences on substance abuse behavior are not completely understood. In this review, we discuss the role that escape from X-chromosome inactivation (XCI) in females plays in sex-associated differences in addiction behavior. Females have two X chromosomes (XX), and during XCI, one X chromosome is randomly chosen to be transcriptionally silenced. However, some X-linked genes escape XCI and display biallelic gene expression. We generated a mouse model using an X-linked gene specific bicistronic dual reporter mouse as a tool to visualize allelic usage and measure XCI escape in a cell specific manner. Our results revealed a previously undiscovered X-linked gene XCI escaper (CXCR3), which is variable and cell type dependent. This illustrates the highly complex and context dependent nature of XCI escape which is largely understudied in the context of SUD. Novel approaches such as single cell RNA sequencing will provide a global molecular landscape and impact of XCI escape in addiction and facilitate our understanding of the contribution of XCI escape to sex disparities in SUD.
Collapse
Affiliation(s)
- Kate Krueger
- Department of Pharmacy, The Ohio State University, Columbus, OH, USA
| | - Felipe Lamenza
- Department of Pathology, The Ohio State University Wexner Medical Center, Columbus, OH, USA; Department of Microbiology, The Ohio State University, Columbus, OH, USA
| | - Howard Gu
- Department of Biological Chemistry and Pharmacology, The Ohio State University, Columbus, OH, USA
| | - Heithem El-Hodiri
- Department of Neuroscience, The Ohio State University, Columbus, OH, USA
| | - Jason Wester
- Department of Neuroscience, The Ohio State University, Columbus, OH, USA
| | - John Oberdick
- Department of Neuroscience, The Ohio State University, Columbus, OH, USA
| | - Andy J Fischer
- Department of Neuroscience, The Ohio State University, Columbus, OH, USA
| | - Steve Oghumu
- Department of Pathology, The Ohio State University Wexner Medical Center, Columbus, OH, USA.
| |
Collapse
|
43
|
Ruan P, Wang S, Yi P, Yang M, Chen Y, Yang M. Identification of the potential TLR7 antagonists by virtual screening and experimental validation. Mol Divers 2023:10.1007/s11030-023-10660-4. [PMID: 37217769 DOI: 10.1007/s11030-023-10660-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Accepted: 05/15/2023] [Indexed: 05/24/2023]
Abstract
Toll-like receptor 7 (TLR7) is highly expressed in dendritic cells (DCs) and B cells, and its aberrant activation can promote disease progression in systemic lupus erythematosus (SLE). We utilized structure-based virtual screening and experimental validation to screen natural products from TargetMol for potential TLR7 antagonists. Our results of molecular docking and molecular dynamics simulation showed that Mogroside V (MV) strongly interacted with TLR7, with stable open-TLR7-MV and close-TLR7-MV complexes. Furthermore, in vitro experiments demonstrated that MV significantly inhibited B cell differentiation in a concentration-dependent manner. In addition to TLR7, we also revealed a strong interaction of MV with all TLRs, including TLR4. The above results suggested that MV might be a potential TLR7 antagonist deserving of further study.
Collapse
Affiliation(s)
- Pinglang Ruan
- Department of Dermatology, Second Xiangya Hospital, Central South University, Hunan Key Laboratory of Medical Epigenomics, Changsha, Hunan, China
| | - Susu Wang
- Department of Anesthesiology, Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Ping Yi
- Department of Pediatrics, The Third Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Miao Yang
- Department of Dermatology, Second Xiangya Hospital, Central South University, Hunan Key Laboratory of Medical Epigenomics, Changsha, Hunan, China
| | - Yongjian Chen
- Department of Dermatology, Hunan Provincial People's Hospital, Changsha, 410078, Hunan, China
| | - Ming Yang
- Department of Dermatology, Second Xiangya Hospital, Central South University, Hunan Key Laboratory of Medical Epigenomics, Changsha, Hunan, China.
| |
Collapse
|
44
|
García-Martínez K, Chen J, Jones J, Woo A, Aucapina A, Brito I, Leifer CA. Stimulator of interferon genes is required for Toll-Like Receptor-8 induced interferon response. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.05.15.540812. [PMID: 37292640 PMCID: PMC10245589 DOI: 10.1101/2023.05.15.540812] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The innate immune system is equipped with multiple receptors to detect microbial nucleic acids and induce type I interferon (IFN) to restrict viral replication. When dysregulated these receptor pathways induce inflammation in response to host nucleic acids and promote development and persistence of autoimmune diseases like Systemic Lupus Erythematosus (SLE). IFN production is regulated by the Interferon Regulatory Factor (IRF) transcription factor family of proteins that function downstream of several innate immune receptors such as Toll-like receptors (TLRs) and Stimulator of Interferon Genes (STING). Although both TLRs and STING activate the same downstream molecules, the pathway by which TLRs and STING activate IFN response are thought to be independent. Here we show that STING plays a previously undescribed role in human TLR8 signaling. Stimulation with the TLR8 ligands induced IFN secretion in primary human monocytes, and inhibition of STING reduced IFN secretion from primary monocytes from 8 healthy donors. We demonstrate that TLR8-induced IRF activity was reduced by STING inhibitors. Moreover, TLR8-induced IRF activity was blocked by inhibition or loss of IKKε, but not TBK1. Bulk RNA transcriptomic analysis supported a model where TLR8 induces transcriptional responses associated with SLE that can be downregulated by inhibition of STING. These data demonstrate that STING is required for full TLR8-to-IRF signaling and provide evidence for a new framework of crosstalk between cytosolic and endosomal innate immune receptors, which could be leveraged to treat IFN driven autoimmune diseases. Background High levels of type I interferon (IFN) is characteristic of multiple autoimmune diseases, and while TLR8 is associated with autoimmune disease and IFN production, the mechanisms of TLR8-induced IFN production are not fully understood. Results STING is phosphorylated following TLR8 signaling, which is selectively required for the IRF arm of TLR8 signaling and for TLR8-induced IFN production in primary human monocytes. Conclusion STING plays a previously unappreciated role in TLR8-induced IFN production. Significance Nucleic acid-sensing TLRs contribute to development and progression of autoimmune disease including interferonopathies, and we show a novel role for STING in TLR-induced IFN production that could be a therapeutic target.
Collapse
|
45
|
Johnson D, Jiang W. Infectious diseases, autoantibodies, and autoimmunity. J Autoimmun 2023; 137:102962. [PMID: 36470769 PMCID: PMC10235211 DOI: 10.1016/j.jaut.2022.102962] [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: 11/27/2022] [Accepted: 11/27/2022] [Indexed: 12/04/2022]
Abstract
Infections are known to trigger flares of autoimmune diseases in humans and serve as an inciting cause of autoimmunity in animals. Evidence suggests a causative role of infections in triggering antigen-specific autoimmunity, previous thought mainly through antigen mimicry. However, an infection can induce bystander autoreactive T and B cell polyclonal activation, believed to result in non-pathogenic and pathogenic autoimmune responses. Lastly, epitope spreading in autoimmunity is a mechanism of epitope changes of autoreactive cells induced by infection, promoting the targeting of additional self-epitopes. This review highlights recent research findings, emphasizes infection-mediated autoimmune responses, and discusses the possible mechanisms involved.
Collapse
Affiliation(s)
- Douglas Johnson
- Department of Microbiology and Immunology, Medical University of South Carolina, 173 Ashley Ave., Charleston, SC, USA; Ralph H. Johnson VA Medical Center, Charleston, SC, USA
| | - Wei Jiang
- Department of Microbiology and Immunology, Medical University of South Carolina, 173 Ashley Ave., Charleston, SC, USA; Ralph H. Johnson VA Medical Center, Charleston, SC, USA; Divison of Infectious Disease, Department of Medicine, Medical University of South Carolina, Charleston, SC, USA.
| |
Collapse
|
46
|
Seth A, Yokokura Y, Choi JY, Shyer JA, Vidyarthi A, Craft J. AP-1-independent NFAT signaling maintains follicular T cell function in infection and autoimmunity. J Exp Med 2023; 220:e20211110. [PMID: 36820828 PMCID: PMC9998660 DOI: 10.1084/jem.20211110] [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: 05/20/2021] [Revised: 09/05/2022] [Accepted: 02/01/2023] [Indexed: 02/24/2023] Open
Abstract
Coordinated gene expression programs enable development and function of T cell subsets. Follicular helper T (Tfh) cells coordinate humoral immune responses by providing selective and instructive cues to germinal center B cells. Here, we show that AP-1-independent NFAT gene expression, a program associated with hyporesponsive T cell states like anergy or exhaustion, is also a distinguishing feature of Tfh cells. NFAT signaling in Tfh cells, maintained by NFAT2 autoamplification, is required for their survival. ICOS signaling upregulates Bcl6 and induces an AP-1-independent NFAT program in primary T cells. Using lupus-prone mice, we demonstrate that genetic disruption or pharmacologic inhibition of NFAT signaling specifically impacts Tfh cell maintenance and leads to amelioration of autoantibody production and renal injury. Our data provide important conceptual and therapeutic insights into the signaling mechanisms that regulate Tfh cell development and function.
Collapse
Affiliation(s)
- Abhinav Seth
- Department of Internal Medicine, Section of Rheumatology, Allergy and Immunology, School of Medicine, Yale University, New Haven, CT, USA
| | - Yoshiyuki Yokokura
- Department of Internal Medicine, Section of Rheumatology, Allergy and Immunology, School of Medicine, Yale University, New Haven, CT, USA
| | - Jin-Young Choi
- Department of Internal Medicine, Section of Rheumatology, Allergy and Immunology, School of Medicine, Yale University, New Haven, CT, USA
| | - Justin A. Shyer
- Department of Immunobiology, School of Medicine, Yale University, New Haven, CT, USA
| | - Aurobind Vidyarthi
- Department of Internal Medicine, Section of Rheumatology, Allergy and Immunology, School of Medicine, Yale University, New Haven, CT, USA
| | - Joe Craft
- Department of Internal Medicine, Section of Rheumatology, Allergy and Immunology, School of Medicine, Yale University, New Haven, CT, USA
- Department of Immunobiology, School of Medicine, Yale University, New Haven, CT, USA
| |
Collapse
|
47
|
Miquel CH, Faz-Lopez B, Guéry JC. Influence of X chromosome in sex-biased autoimmune diseases. J Autoimmun 2023; 137:102992. [PMID: 36641351 DOI: 10.1016/j.jaut.2023.102992] [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: 01/03/2023] [Accepted: 01/03/2023] [Indexed: 01/13/2023]
Abstract
Females have better ability to resolve infections, compared to males, but also, a greater susceptibility to develop autoimmunity. Besides the initial interest on the contribution of sex-steroid hormone signaling, the role of genetic factors linked to X chromosome has recently focused much attention. In human and mouse, the number of X chromosomes, rather than sex-steroid hormones, have been found associated with higher risk or susceptibility to develop autoimmunity, particularly rheumatic diseases, such as SLE, Sjögren's syndrome or Scleroderma. For all of these diseases, the Toll-like receptor TLR7 and TLR8, encoded on the same locus in the human Xp, have been demonstrated to be causal in disease development through gene dosage effect or gain of function mutations. During embryonic development in female mammals, one X chromosome is stochastically inactivated to balance X-linked gene expression between males and females, a process known as X chromosome inactivation (XCI). Nevertheless, some genes including immune related genes can escape XCI to variable degree and penetrance, resulting in a bi-allelic expression in some immune cells, such as TLR7. Because tight regulation of TLR expression is necessary for a healthy, self-tolerant immune environment, XCI escape has been proposed as a mechanism contributing to this sexual dimorphism. In this review, we will summarize general mechanisms of XCI, and describe the known escapee's genes in immune cells, the cellular diversity created by such mechanisms and its potential implication in autoimmune diseases, with a particular focus on the X-linked genes and immune cell populations involved in SLE. Whether dysregulated expression of X-linked genes could contribute to the enhanced susceptibility of females to develop such diseases remains to be proven. Shedding lights onto the X-linked genetic mechanisms contributing to modulation of immune cell functions will undoubtedly provide new insights into the intricate mechanisms underlying sex differences in immunity and autoimmunity.
Collapse
Affiliation(s)
- Charles-Henry Miquel
- Toulouse Institute for Infectious and Inflammatory Diseases (INFINITY), Université de Toulouse, INSERM, CNRS, UPS, 31300, France; Arthritis R&D, Neuilly-Sur-Seine, France
| | - Berenice Faz-Lopez
- Toulouse Institute for Infectious and Inflammatory Diseases (INFINITY), Université de Toulouse, INSERM, CNRS, UPS, 31300, France
| | - Jean-Charles Guéry
- Toulouse Institute for Infectious and Inflammatory Diseases (INFINITY), Université de Toulouse, INSERM, CNRS, UPS, 31300, France.
| |
Collapse
|
48
|
Rackaityte E, Proekt I, Miller HS, Ramesh A, Brooks JF, Kung AF, Mandel-Brehm C, Yu D, Zamecnik C, Bair R, Vazquez SE, Sunshine S, Abram CL, Lowell CA, Rizzuto G, Wilson MR, Zikherman J, Anderson MS, DeRisi JL. Validation of a murine proteome-wide phage display library for the identification of autoantibody specificities. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.04.07.535899. [PMID: 37066405 PMCID: PMC10104109 DOI: 10.1101/2023.04.07.535899] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/18/2023]
Abstract
Autoimmunity is characterized by loss of tolerance to tissue-specific as well as systemic antigens, resulting in complex autoantibody landscapes. Here, we introduce and extensively validate the performance characteristics of a murine proteome-wide library for phage display immunoprecipitation and sequencing (PhIP-seq), to profile mouse autoantibodies. This system and library were validated using seven genetic mouse models across a spectrum of autoreactivity. Mice deficient in antibody production (Rag2-/- and μMT) were used to model non-specific peptide enrichments, while cross-reactivity was evaluated using anti-ovalbumin B cell receptor (BCR)-restricted OB1 mice as a proof of principle. The PhIP-seq approach was then utilized to interrogate three distinct autoimmune disease models. First, serum from Lyn-/- IgD+/- mice with lupus-like disease was used to identify nuclear and apoptotic bleb reactivities, lending support to the hypothesis that apoptosis is a shared origin of these antigens. Second, serum from non-obese diabetic (NOD) mice, a polygenic model of pancreas-specific autoimmunity, enriched peptides derived from both insulin and predicted pancreatic proteins. Lastly, Aire-/- mouse sera were used to identify numerous auto-antigens, many of which were also observed in previous studies of humans with autoimmune polyendocrinopathy syndrome type 1 (APS1) carrying recessive mutations in AIRE. Among these were peptides derived from Perilipin-1, a validated autoimmune biomarker of generalized acquired lipodystrophy in humans. Autoreactivity to Perilipin-1 correlated with lymphocyte infiltration in adipose tissue and underscores the approach in revealing previously unknown specificities. These experiments support the use of murine proteome-wide PhIP-seq for antigenic profiling and autoantibody discovery, which may be employed to study a range of immune perturbations in mouse models of autoimmunity.
Collapse
Affiliation(s)
- Elze Rackaityte
- Department of Biochemistry and Biophysics, University of California San Francisco, San Francisco, CA USA
| | - Irina Proekt
- Diabetes Center, School of Medicine, University of California San Francisco, San Francisco, CA USA
| | - Haleigh S. Miller
- Department of Biochemistry and Biophysics, University of California San Francisco, San Francisco, CA USA
- Biological and Medical Informatics Program, University of California San Francisco, San Francisco, CA USA
| | - Akshaya Ramesh
- Weill Institute for Neurosciences, Department of Neurology, School of Medicine, University of California San Francisco, San Francisco, CA USA
| | - Jeremy F. Brooks
- Division of Rheumatology, Rosalind Russell and Ephraim P. Engleman Rheumatology Research Center, Department of Medicine, University of California San Francisco, San Francisco, CA USA
| | - Andrew F. Kung
- Department of Biochemistry and Biophysics, University of California San Francisco, San Francisco, CA USA
- Biological and Medical Informatics Program, University of California San Francisco, San Francisco, CA USA
| | - Caleigh Mandel-Brehm
- Department of Biochemistry and Biophysics, University of California San Francisco, San Francisco, CA USA
| | - David Yu
- Diabetes Center, School of Medicine, University of California San Francisco, San Francisco, CA USA
| | - Colin Zamecnik
- Weill Institute for Neurosciences, Department of Neurology, School of Medicine, University of California San Francisco, San Francisco, CA USA
| | - Rebecca Bair
- Weill Institute for Neurosciences, Department of Neurology, School of Medicine, University of California San Francisco, San Francisco, CA USA
| | - Sara E. Vazquez
- Department of Biochemistry and Biophysics, University of California San Francisco, San Francisco, CA USA
- Diabetes Center, School of Medicine, University of California San Francisco, San Francisco, CA USA
| | - Sara Sunshine
- Department of Biochemistry and Biophysics, University of California San Francisco, San Francisco, CA USA
| | - Clare L. Abram
- Department of Laboratory Medicine, University of California, San Francisco, San Francisco, CA, USA
| | - Clifford A. Lowell
- Department of Laboratory Medicine, University of California, San Francisco, San Francisco, CA, USA
| | - Gabrielle Rizzuto
- Human Oncology & Pathogenesis Program and Department of Pathology & Laboratory Medicine, Memorial Sloan Kettering Cancer Center, NY, NY
| | - Michael R. Wilson
- Weill Institute for Neurosciences, Department of Neurology, School of Medicine, University of California San Francisco, San Francisco, CA USA
| | - Julie Zikherman
- Division of Rheumatology, Rosalind Russell and Ephraim P. Engleman Rheumatology Research Center, Department of Medicine, University of California San Francisco, San Francisco, CA USA
| | - Mark S. Anderson
- Diabetes Center, School of Medicine, University of California San Francisco, San Francisco, CA USA
| | - Joseph L. DeRisi
- Department of Biochemistry and Biophysics, University of California San Francisco, San Francisco, CA USA
- Chan Zuckerberg Biohub, San Francisco, CA, USA
| |
Collapse
|
49
|
Cheng D, Luo Z, Fitting S, Stoops W, Heath SL, Ndhlovu LC, Jiang W. The link between chronic cocaine use, B cell perturbations, and blunted immune recovery in HIV-infected individuals on suppressive ART. NEUROIMMUNE PHARMACOLOGY AND THERAPEUTICS 2023; 2:71-79. [PMID: 37027536 PMCID: PMC10070012 DOI: 10.1515/nipt-2022-0019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Accepted: 01/27/2023] [Indexed: 06/04/2023]
Abstract
Background We recently reveal that anti-CD4 autoantibodies contribute to blunted CD4+ T cell reconstitution in HIV+ individuals on antiretroviral therapy (ART). Cocaine use is common among HIV+ individuals and is associated with accelerated disease progression. However, the mechanisms underlying cocaine-induced immune perturbations remain obscure. Methods We evaluated plasma levels of anti-CD4 IgG and markers of microbial translocation, as well as B-cell gene expression profiles and activation in HIV+ chronic cocaine users and non-users on suppressive ART, as well as uninfected controls. Plasma purified anti-CD4 IgGs were assessed for antibody-dependent cytotoxicity (ADCC). Results HIV+ cocaine users had increased plasma levels of anti-CD4 IgGs, lipopolysaccharide (LPS), and soluble CD14 (sCD14) versus non-users. An inverse correlation was observed in cocaine users, but not non-drug users. Anti-CD4 IgGs from HIV+ cocaine users mediated CD4+ T cell death through ADCC in vitro. B cells from HIV+ cocaine users exhibited activation signaling pathways and activation (cycling and TLR4 expression) related to microbial translocation versus non-users. Conclusions This study improves our understanding of cocaine associated B cell perturbations and immune failure and the new appreciation for autoreactive B cells as novel therapeutic targets.
Collapse
Affiliation(s)
- Da Cheng
- Department of Microbiology and Immunology, Medical University of South Carolina, Charleston, SC, USA
| | - Zhenwu Luo
- Department of Microbiology and Immunology, Medical University of South Carolina, Charleston, SC, USA
| | - Sylvia Fitting
- Department of Psychology & Neuroscience, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - William Stoops
- Department of Behavioral Science, Department of Psychiatry, Center on Drug and Alcohol Research, Department of Psychology, University of Kentucky College of Medicine and College of Arts and Sciences, Lexington, KY, USA
| | - Sonya L. Heath
- Department of Medicine, Division of Infectious Diseases, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Lishomwa C. Ndhlovu
- Department of Medicine, Division of Infectious Diseases, Weill Cornell Medicine, New York, NY, USA
| | - Wei Jiang
- Department of Microbiology and Immunology, Medical University of South Carolina, Charleston, SC, USA
- Ralph H. Johnson VA Medical Center, Charleston, SC, USA
- Divison of Infectious Diseases, Department of Medicine, Medical University of South Carolina, Charleston, USA
| |
Collapse
|
50
|
Tsao YP, Tseng FY, Chao CW, Chen MH, Yeh YC, Abdulkareem BO, Chen SY, Chuang WT, Chang PC, Chen IC, Wang PH, Wu CS, Tsai CY, Chen ST. NLRP12 is an innate immune checkpoint for repressing IFN signatures and attenuating lupus nephritis progression. J Clin Invest 2023; 133:157272. [PMID: 36719379 PMCID: PMC9888378 DOI: 10.1172/jci157272] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Accepted: 11/29/2022] [Indexed: 02/01/2023] Open
Abstract
Signaling driven by nucleic acid sensors participates in interferonopathy-mediated autoimmune diseases. NLRP12, a pyrin-containing NLR protein, is a negative regulator of innate immune activation and type I interferon (IFN-I) production. Peripheral blood mononuclear cells (PBMCs) derived from systemic lupus erythematosus (SLE) patients expressed lower levels of NLRP12, with an inverse correlation with IFNA expression and high disease activity. NLRP12 expression was transcriptionally suppressed by runt-related transcription factor 1-dependent (RUNX1-dependent) epigenetic regulation under IFN-I treatment, which enhanced a negative feedback loop between low NLRP12 expression and IFN-I production. Reduced NLRP12 protein levels in SLE monocytes was linked to spontaneous activation of innate immune signaling and hyperresponsiveness to nucleic acid stimulations. Pristane-treated Nlrp12-/- mice exhibited augmented inflammation and immune responses; and substantial lymphoid hypertrophy was characterized in NLRP12-deficient lupus-prone mice. NLRP12 deficiency mediated the increase of autoantibody production, intensive glomerular IgG deposition, monocyte recruitment, and the deterioration of kidney function. These were bound in an IFN-I signature-dependent manner in the mouse models. Collectively, we reveal a remarkable link between low NLRP12 expression and lupus progression, which suggests the impact of NLRP12 on homeostasis and immune resilience.
Collapse
Affiliation(s)
- Yen-Po Tsao
- Institute of Clinical Medicine, National Yang Ming Chiao Tung University, Hsinchu, Taiwan.,Division of Allergy, Immunology and Rheumatology, Department of Medicine, and,Division of Holistic and Multidisciplinary Medicine, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Fang-Yu Tseng
- Program in Molecular Medicine, National Yang Ming Chiao Tung University and Academia Sinica, Taipei, Taiwan
| | - Chih-Wei Chao
- Institute of Clinical Medicine, National Yang Ming Chiao Tung University, Hsinchu, Taiwan.,Program in Molecular Medicine, National Yang Ming Chiao Tung University and Academia Sinica, Taipei, Taiwan
| | - Ming-Han Chen
- Division of Allergy, Immunology and Rheumatology, Department of Medicine, and
| | - Yi-Chen Yeh
- Department of Pathology and Laboratory Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Babamale Olarewaju Abdulkareem
- Taiwan International Graduate Program in Molecular Medicine, National Yang Ming Chiao Tung University and Academia Sinica, Taipei, Taiwan
| | - Se-Yi Chen
- Department of Neurosurgery, and,School of Medicine, Chung-Shan Medical University, Taichung, Taiwan
| | - Wen-Ting Chuang
- Institute of Clinical Medicine, National Yang Ming Chiao Tung University, Hsinchu, Taiwan
| | - Pei-Ching Chang
- Institute of Microbiology and Immunology, National Yang Ming Chiao Tung University, Hsinchu, Taiwan
| | - I-Chun Chen
- Institute of Clinical Medicine, National Yang Ming Chiao Tung University, Hsinchu, Taiwan
| | - Pin-Hsuan Wang
- Institute of Clinical Medicine, National Yang Ming Chiao Tung University, Hsinchu, Taiwan
| | - Chien-Sheng Wu
- Department of Internal Medicine, Far Eastern Memorial Hospital, New Taipei City, Taiwan
| | - Chang-Youh Tsai
- Division of Allergy, Immunology and Rheumatology, Department of Medicine, and
| | - Szu-Ting Chen
- Institute of Clinical Medicine, National Yang Ming Chiao Tung University, Hsinchu, Taiwan.,Department of Pathology and Laboratory Medicine, Taipei Veterans General Hospital, Taipei, Taiwan.,Taiwan International Graduate Program in Molecular Medicine, National Yang Ming Chiao Tung University and Academia Sinica, Taipei, Taiwan.,Cancer Progression Research Center, National Yang Ming Chiao Tung University, Hsinchu, Taiwan
| |
Collapse
|