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Bier K, Senajova Z, Henrion F, Wang Y, Bruno S, Rauld C, Hörmann LC, Barske C, Delucis-Bronn C, Bergling S, Altorfer M, Hägele J, Knehr J, Junt T, Roediger B, Röhn TA, Kolbinger F. IL-26 Potentiates Type 2 Skin Inflammation in the Presence of IL-1β. J Invest Dermatol 2024; 144:1544-1556.e9. [PMID: 38237730 DOI: 10.1016/j.jid.2023.12.018] [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: 07/07/2023] [Revised: 12/12/2023] [Accepted: 12/16/2023] [Indexed: 06/24/2024]
Abstract
Atopic dermatitis (AD) is a debilitating inflammatory skin disorder. Biologics targeting the IL-4/IL-13 axis are effective in AD, but there is still a large proportion of patients who do not respond to IL-4R blockade. Further exploration of potentially pathogenic T-cell-derived cytokines in AD may lead to new effective treatments. This study aimed to investigate the downstream effects of IL-26 on skin in the context of type 2 skin inflammation. We found that IL-26 alone exhibited limited inflammatory activity in the skin. However, in the presence of IL-1β, IL-26 potentiated the secretion of TSLP, CXCL1, and CCL20 from human epidermis through Jak/signal transducer and activator of transcription signaling. Moreover, in an in vivo AD-like skin inflammation model, IL-26 exacerbated skin pathology and locally increased type 2 cytokines, most notably of IL13 in skin T helper cells. Neutralization of IL-1β abrogated IL-26-mediated effects, indicating that the presence of IL-1β is required for full IL-26 downstream action in vivo. These findings suggest that the presence of IL-1β enables IL-26 to be a key amplifier of inflammation in the skin. As such, IL-26 may contribute to the development and pathogenesis of inflammatory skin disorders such as AD.
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Affiliation(s)
- Katharina Bier
- Immunology Disease Area, Novartis Biomedical Research, Novartis Pharma AG, Basel, Switzerland.
| | - Zuzana Senajova
- Immunology Disease Area, Novartis Biomedical Research, Novartis Pharma AG, Basel, Switzerland
| | - Fanny Henrion
- Immunology Disease Area, Novartis Biomedical Research, Novartis Pharma AG, Basel, Switzerland
| | - Yichen Wang
- Immunology Disease Area, Novartis Biomedical Research, Novartis Pharma AG, Basel, Switzerland
| | - Sandro Bruno
- Immunology Disease Area, Novartis Biomedical Research, Novartis Pharma AG, Basel, Switzerland
| | - Celine Rauld
- Immunology Disease Area, Novartis Biomedical Research, Novartis Pharma AG, Basel, Switzerland
| | - Lisa C Hörmann
- Immunology Disease Area, Novartis Biomedical Research, Novartis Pharma AG, Basel, Switzerland
| | - Carmen Barske
- Immunology Disease Area, Novartis Biomedical Research, Novartis Pharma AG, Basel, Switzerland
| | - Corinne Delucis-Bronn
- Immunology Disease Area, Novartis Biomedical Research, Novartis Pharma AG, Basel, Switzerland
| | - Sebastian Bergling
- Discovery Science, Novartis Biomedical Research, Novartis Pharma AG, Basel, Switzerland
| | - Marc Altorfer
- Discovery Science, Novartis Biomedical Research, Novartis Pharma AG, Basel, Switzerland
| | - Jasmin Hägele
- Discovery Science, Novartis Biomedical Research, Novartis Pharma AG, Basel, Switzerland
| | - Judith Knehr
- Discovery Science, Novartis Biomedical Research, Novartis Pharma AG, Basel, Switzerland
| | - Tobias Junt
- Immunology Disease Area, Novartis Biomedical Research, Novartis Pharma AG, Basel, Switzerland
| | - Ben Roediger
- Immunology Disease Area, Novartis Biomedical Research, Novartis Pharma AG, Basel, Switzerland
| | - Till A Röhn
- Immunology Disease Area, Novartis Biomedical Research, Novartis Pharma AG, Basel, Switzerland
| | - Frank Kolbinger
- Immunology Disease Area, Novartis Biomedical Research, Novartis Pharma AG, Basel, Switzerland
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2
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Gilliet M, Modlin RL. Immunobiology of IL-26. J Invest Dermatol 2024; 144:1217-1222. [PMID: 38206272 DOI: 10.1016/j.jid.2023.10.038] [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: 07/25/2023] [Revised: 10/22/2023] [Accepted: 10/22/2023] [Indexed: 01/12/2024]
Abstract
T helper 17 (Th17) cells produce a set of cytokines that include IL-17 family members, IL-21, IL-22, and IL-26. These cytokines all contribute to the classic function of Th17 cells in combatting extracellular infection and promoting inflammation in autoimmune diseases. However, of the Th17 cytokines, only IL-26 has direct antimicrobial activity against microbes and can activate a broad range of immune cells through its ability to bind DNA and trigger pattern recognition receptors. It is noteworthy that IL-26 is produced by mammalian cells, including human Th17 cells, but is absent in rodents. As such, IL-26 is a potential therapeutic target to augment host immune responses against microbial pathogens but also to prevent inflammation and tissue damage in a variety of autoimmune diseases.
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Affiliation(s)
- Michel Gilliet
- Department of Dermatology, CHUV University Hospital and University of Lausanne (UNIL), Lausanne, Switzerland.
| | - Robert L Modlin
- Division of Dermatology, Department of Medicine, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, California, USA.
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3
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Hammitzsch A, Ossadnik A, Bachmann Q, Merwald-Fraenk H, Lorenz G, Witt M, Wiesent F, Mühlhofer H, Simone D, Bowness P, Heemann U, Arbogast M, Moog P, Schmaderer C. Increased interleukin-26 in the peripheral joints of patients with axial spondyloarthritis and psoriatic arthritis, co-localizing with CD68-positive synoviocytes. Front Immunol 2024; 15:1355824. [PMID: 38799447 PMCID: PMC11127564 DOI: 10.3389/fimmu.2024.1355824] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2023] [Accepted: 04/01/2024] [Indexed: 05/29/2024] Open
Abstract
Objectives IL26 levels are elevated in the blood and synovial fluid of patients with inflammatory arthritis. IL26 can be produced by Th17 cells and locally within joints by tissue-resident cells. IL26 induces osteoblast mineralization in vitro. As osteoproliferation and Th17 cells are important factors in the pathogenesis of axial spondyloarthritis (axSpA), we aimed to clarify the cellular sources of IL26 in spondyloarthritis. Methods Serum, peripheral blood mononuclear cells (n = 15-35) and synovial tissue (n = 3-9) of adult patients with axSpA, psoriatic arthritis (PsA) and rheumatoid arthritis (RA) and healthy controls (HCs, n = 5) were evaluated by ELISA, flow cytometry including PrimeFlow assay, immunohistochemistry and immunofluorescence and quantitative PCR. Results Synovial tissue of axSpA patients shows significantly more IL26-positive cells than that of HCs (p < 0.01), but numbers are also elevated in PsA and RA patients. Immunofluorescence shows co-localization of IL26 with CD68, but not with CD3, SMA, CD163, cadherin-11, or CD90. IL26 is elevated in the serum of RA and PsA (but not axSpA) patients compared with HCs (p < 0.001 and p < 0.01). However, peripheral blood CD4+ T cells from axSpA and PsA patients show higher positivity for IL26 in the PrimeFlow assay compared with HCs. CD4+ memory T cells from axSpA patients produce more IL26 under Th17-favoring conditions (IL-1β and IL-23) than cells from PsA and RA patients or HCs. Conclusion IL26 production is increased in the synovial tissue of SpA and can be localized to CD68+ macrophage-like synoviocytes, whereas circulating IL26+ Th17 cells are only modestly enriched. Considering the osteoproliferative properties of IL26, this offers new therapeutic options independent of Th17 pathways.
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Affiliation(s)
- Ariane Hammitzsch
- Department of Nephrology, Klinikum Rechts der Isar, School of Medicine, Technical University of Munich, Munich, Germany
| | - Andreas Ossadnik
- Department of Nephrology, Klinikum Rechts der Isar, School of Medicine, Technical University of Munich, Munich, Germany
| | - Quirin Bachmann
- Department of Nephrology, Klinikum Rechts der Isar, School of Medicine, Technical University of Munich, Munich, Germany
| | - Helga Merwald-Fraenk
- Amedes Holding AG, Ambulatory Healthcare Center (MVZ) Endokrinologikum München, Munich, Germany
| | - Georg Lorenz
- Department of Nephrology and Rheumatology, Klinik Augustinum München, Munich, Germany
| | | | - Franziska Wiesent
- Amedes Holding AG, Ambulatory Healthcare Center (MVZ) Endokrinologikum München, Munich, Germany
| | - Heinrich Mühlhofer
- Clinic and Policlinic of Orthopaedics and Sports’ Orthopaedics, Klinikum Rechts der Isar, School of Medicine, Technical University of Munich, Munich, Germany
| | - Davide Simone
- Kennedy Institute of Rheumatology, University of Oxford, Oxford, United Kingdom
| | - Paul Bowness
- Botnar Research Centre, Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, Medical Sciences Division, University of Oxford, Oxford, United Kingdom
| | - Uwe Heemann
- Department of Nephrology, Klinikum Rechts der Isar, School of Medicine, Technical University of Munich, Munich, Germany
| | - Martin Arbogast
- Department of Rheumatic Orthopedics and Hand Surgery, Klinik Oberammergau, Waldburg-Zeil Kliniken GmbH und Co KG, Oberammergau, Germany
| | - Philipp Moog
- Department of Nephrology, Klinikum Rechts der Isar, School of Medicine, Technical University of Munich, Munich, Germany
| | - Christoph Schmaderer
- Department of Nephrology, Klinikum Rechts der Isar, School of Medicine, Technical University of Munich, Munich, Germany
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Futosi K, Mócsai A. Neutrophil IL-26 fuels autoinflammation. J Exp Med 2024; 221:e20240229. [PMID: 38557722 PMCID: PMC10983689 DOI: 10.1084/jem.20240229] [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] [Indexed: 04/04/2024] Open
Abstract
Pustular psoriasis is an inflammatory skin disease with features of neutrophil-mediated sterile autoinflammation. In this issue of JEM, Baldo et al. (https://doi.org/10.1084/jem.20231464) show that this autoinflammation is driven by a vicious cycle through neutrophil-derived IL-26.
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Affiliation(s)
- Krisztina Futosi
- Department of Physiology, Semmelweis University School of Medicine, Budapest, Hungary
- HUN-REN–SU Inflammation Physiology Research Group, Hungarian Research Network and Semmelweis University, Budapest, Hungary
| | - Attila Mócsai
- Department of Physiology, Semmelweis University School of Medicine, Budapest, Hungary
- HUN-REN–SU Inflammation Physiology Research Group, Hungarian Research Network and Semmelweis University, Budapest, Hungary
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Baldo A, Di Domizio J, Yatim A, Vandenberghe-Dürr S, Jenelten R, Fries A, Grizzetti L, Kuonen F, Paul C, Modlin RL, Conrad C, Gilliet M. Human neutrophils drive skin autoinflammation by releasing interleukin (IL)-26. J Exp Med 2024; 221:e20231464. [PMID: 38448036 PMCID: PMC10917069 DOI: 10.1084/jem.20231464] [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: 08/18/2023] [Revised: 01/04/2024] [Accepted: 02/09/2024] [Indexed: 03/08/2024] Open
Abstract
Autoinflammation is a sterile inflammatory process resulting from increased neutrophil infiltration and overexpression of IL-1 cytokines. The factors that trigger these events are, however, poorly understood. By investigating pustular forms of psoriasis, we show that human neutrophils constitutively express IL-26 and abundantly release it from granular stores upon activation. In pustular psoriasis, neutrophil-derived IL-26 drives the pathogenic autoinflammation process by inducing the expression of IL-1 cytokines and chemokines that further recruit neutrophils. This occurs via activation of IL-26R in keratinocytes and via the formation of complexes between IL-26 and microbiota DNA, which trigger TLR9 activation of neutrophils. Thus our findings identify neutrophils as an important source of IL-26 and point to IL-26 as the key link between neutrophils and a self-sustaining autoinflammation loop in pustular psoriasis.
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Affiliation(s)
- Alessia Baldo
- Department of Dermatology and Venereology, University Hospital of Lausanne, Lausanne, Switzerland
| | - Jeremy Di Domizio
- Department of Dermatology and Venereology, University Hospital of Lausanne, Lausanne, Switzerland
| | - Ahmad Yatim
- Department of Dermatology and Venereology, University Hospital of Lausanne, Lausanne, Switzerland
| | - Sophie Vandenberghe-Dürr
- Department of Dermatology and Venereology, University Hospital of Lausanne, Lausanne, Switzerland
| | - Raphael Jenelten
- Department of Dermatology and Venereology, University Hospital of Lausanne, Lausanne, Switzerland
| | - Anissa Fries
- Department of Dermatology and Venereology, University Hospital of Lausanne, Lausanne, Switzerland
| | - Lorenzo Grizzetti
- Department of Dermatology and Venereology, University Hospital of Lausanne, Lausanne, Switzerland
| | - François Kuonen
- Department of Dermatology and Venereology, University Hospital of Lausanne, Lausanne, Switzerland
| | - Carle Paul
- Department of Dermatology and Venereology, Centre Hospitalier Universitaire, Toulouse, France
| | - Robert L. Modlin
- Division of Dermatology, University of California, Los Angeles, Los Angeles, CA, USA
| | - Curdin Conrad
- Department of Dermatology and Venereology, University Hospital of Lausanne, Lausanne, Switzerland
| | - Michel Gilliet
- Department of Dermatology and Venereology, University Hospital of Lausanne, Lausanne, Switzerland
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6
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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.
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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
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7
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Suchitha GP, Dagamajalu S, Keshava Prasad TS, Devasahayam Arokia Balaya R. A Comprehensive Network Map of Interleukin-26 Signaling Pathway. J Interferon Cytokine Res 2024. [PMID: 38639111 DOI: 10.1089/jir.2024.0026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/20/2024] Open
Abstract
Interleukin-26 (IL-26) is a cytokine that belongs to the IL-20 subfamily and is primarily expressed in T helper 1 cells and Th17 memory CD4+ cells. Its receptor complex, consisting of IL-20R1 and IL-10R2, activates a signaling pathway involving several proteins such as Janus kinase 1 and tyrosine-protein kinase, signal transducer and activator of transcription (STAT) 1, and STAT3. This leads to the initiation of downstream signaling cascades that play a crucial role in various biological processes, including inflammation, immune response regulation, atopic dermatitis, macrophage differentiation, osteoclastogenesis, antibacterial host defense, anti-apoptosis, and tumor growth. In this study, we curated literature data pertaining to IL-26 signaling. The curated map includes a total of seven activation/inhibition events, 16 catalysis events, 33 gene regulation events, 25 protein expression types, two transport events, and three molecular associations.
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Affiliation(s)
- G P Suchitha
- Center for Systems Biology and Molecular Medicine, Yenepoya Research Centre, Yenepoya (Deemed to Be University), Mangalore, Karnataka, India
| | - Shobha Dagamajalu
- Center for Systems Biology and Molecular Medicine, Yenepoya Research Centre, Yenepoya (Deemed to Be University), Mangalore, Karnataka, India
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8
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Kovach MA, Käck U, Che KF, Brundin B, Konradsen JR, Lindén A. Systemic IL-26 correlates with improved asthma control in children sensitized to dog allergen. Respir Res 2024; 25:163. [PMID: 38622712 PMCID: PMC11020994 DOI: 10.1186/s12931-024-02773-7] [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: 09/29/2023] [Accepted: 03/13/2024] [Indexed: 04/17/2024] Open
Abstract
BACKGROUND Interleukin (IL)-26 is produced by T helper type 17 (Type 17) cells and exerts immunomodulatory plus antimicrobial effects. Previous studies show that local IL-26 concentrations in the airways are higher in patients with uncontrolled than in those with controlled asthma, and that this intriguing cytokine bears biomarker potential. Here, we determined how systemic IL-26 relates to allergen sensitization, asthma severity, and to IL-17 A in children. METHODS Serum samples were obtained from children with (n = 60) and without (n = 17) sensitization to dog allergen, and IL-26 and IL-17 A protein concentrations were measured using ELISA. Self-reported history, including medication use and validated symptom-based questionnaire scores, was recorded. RESULTS The serum concentrations of IL-26 were enhanced in allergen-sensitized subjects and correlated with those of IL-17 A in a positive manner. However, the IL-26 concentrations did not markedly differ between allergen-sensitized subjects with and without asthma, eczema, allergic rhinitis, or a history of food allergy. Notably, IL-26 concentrations correlated with increasing Asthma Control Test (ACT) scores in a positive manner and with inhaled corticosteroid in a negative manner, amongst sensitized subjects with asthma. Moreover, subjects with asthma requiring ≥ 1 course of oral corticosteroids in the preceding 12 months had decreased IL-26 concentrations. CONCLUSION This study forwards evidence that systemic IL-26, just like IL-17 A, is involved in allergen sensitization among children. The association of systemic IL-26 with improved asthma control is compatible with the cellular sources being recruited into the airways in severe asthma, which supports that this kinocidin bears potential as a biomarker and therapeutic target.
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Affiliation(s)
- Melissa A Kovach
- Unit for Lung and Airway Research, Institute of Environmental Medicine, Karolinska Institutet, Stockholm, 171 77, Sweden.
| | - Ulrika Käck
- Department of Clinical Science and Education, Södersjukhuset, Karolinska Institutet, Stockholm, Sweden
- Sachs´ Children and Youth Hospital, Södersjukhuset, Stockholm, Sweden
| | - Karlhans F Che
- Unit for Lung and Airway Research, Institute of Environmental Medicine, Karolinska Institutet, Stockholm, 171 77, Sweden
| | - Bettina Brundin
- Unit for Lung and Airway Research, Institute of Environmental Medicine, Karolinska Institutet, Stockholm, 171 77, Sweden
| | - Jon R Konradsen
- Department of Medicine Solna Immunology and Allergy Unit, Karolinska Institutet and Karolinska University Hospital, Stockholm, Sweden
- Department of Women's and Children's Health, Karolinska Institutet, Stockholm, Sweden
| | - Anders Lindén
- Unit for Lung and Airway Research, Institute of Environmental Medicine, Karolinska Institutet, Stockholm, 171 77, Sweden
- Karolinska Severe COPD Center, Department of Respiratory Medicine and Allergy, Karolinska University Hospital, Stockholm, Sweden
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9
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Anooja VV, Archana K, Athira PP, Anju MV, Neelima S, Muhammed Musthafa S, Dhaneesha M, Sajeevan TP, Singh ISB, Philip R. Antibacterial activity and modes of action of a novel hepcidin isoform from the shrimp scad, Alepes djedaba (Forsskål, 1775). FISH & SHELLFISH IMMUNOLOGY 2024; 146:109406. [PMID: 38278338 DOI: 10.1016/j.fsi.2024.109406] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Revised: 01/18/2024] [Accepted: 01/23/2024] [Indexed: 01/28/2024]
Abstract
Hepcidin, initially identified in human blood ultrafiltrate as cysteine rich Liver Expressed Antimicrobial Peptide (LEAP-1), is a core molecular conduit between iron trafficking and immune response. Though a great share of studies has been focused on the iron regulatory function of hepcidins, investigations on the antimicrobial aspects are relatively less. The present study is aimed at identification of hepcidin from a teleost fish, Alepes djedaba followed by its recombinant expression, testing antibacterial property, stability and evaluation of cytotoxicity. Modes of action on bacterial pathogens were also examined. A novel hepcidin isoform, Ad-Hep belonging to the HAMP1 (Hepcidin antimicrobial peptide 1) group of hepcidins was identified from the shrimp scad, Alepes djedaba. Ad-Hep with 2.9 kDa size was found to be a cysteine rich, cationic peptide (+4) with antiparallel beta sheet conformation, a furin cleavage site (RXXR) and 'ATCUN' motif. It was heterologously expressed in E. coli Rosettagami B(DE3)PLysS cells and the recombinant peptide, rAd-Hep was found to have significant antibacterial activity, especially against Edwardsiella tarda, Vibrio parahaemolyticus and Escherichia coli. Membrane depolarization followed by membrane permeabilization and Reactive Oxygen Species (ROS) production were found to be the modes of action of rAd-Hep on bacterial cells. Ad-Hep was found to be non-haemolytic to hRBC and non-cytotoxic in mammalian cell line. Stability of the peptide at varying temperature, pH and metal salts qualify them for applications in vivo. With significant bactericidal activity coupled with direct killing mechanisms, the rAd-Hep can be a promising drug candidate for therapeutic applications in medicine and fish culture systems.
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Affiliation(s)
- V V Anooja
- Department of Marine Biology, Microbiology and Biochemistry, School of Marine Sciences, Cochin University of Science and Technology, Fine Arts Avenue, Kochi, 682016, Kerala, India
| | - K Archana
- Department of Marine Biology, Microbiology and Biochemistry, School of Marine Sciences, Cochin University of Science and Technology, Fine Arts Avenue, Kochi, 682016, Kerala, India
| | - P P Athira
- Department of Marine Biology, Microbiology and Biochemistry, School of Marine Sciences, Cochin University of Science and Technology, Fine Arts Avenue, Kochi, 682016, Kerala, India
| | - M V Anju
- Department of Marine Biology, Microbiology and Biochemistry, School of Marine Sciences, Cochin University of Science and Technology, Fine Arts Avenue, Kochi, 682016, Kerala, India
| | - S Neelima
- Department of Marine Biology, Microbiology and Biochemistry, School of Marine Sciences, Cochin University of Science and Technology, Fine Arts Avenue, Kochi, 682016, Kerala, India
| | - S Muhammed Musthafa
- Department of Marine Biology, Microbiology and Biochemistry, School of Marine Sciences, Cochin University of Science and Technology, Fine Arts Avenue, Kochi, 682016, Kerala, India
| | - M Dhaneesha
- National Center for Aquatic Animal Health, Cochin University of Science and Technology, Fine Arts Avenue, Kochi, 682016, Kerala, India
| | - T P Sajeevan
- National Center for Aquatic Animal Health, Cochin University of Science and Technology, Fine Arts Avenue, Kochi, 682016, Kerala, India
| | - I S Bright Singh
- National Center for Aquatic Animal Health, Cochin University of Science and Technology, Fine Arts Avenue, Kochi, 682016, Kerala, India
| | - Rosamma Philip
- Department of Marine Biology, Microbiology and Biochemistry, School of Marine Sciences, Cochin University of Science and Technology, Fine Arts Avenue, Kochi, 682016, Kerala, India.
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10
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Nakamura Y, Kulkarni NN, Takahashi T, Alimohamadi H, Dokoshi T, Liu E, Shia M, Numata T, Luo EW, Gombart AF, Yang X, Secrest P, Gordts PL, Tsimikas S, Wong GC, Gallo RL. Increased LL37 in psoriasis and other inflammatory disorders promotes LDL uptake and atherosclerosis. J Clin Invest 2024; 134:e172578. [PMID: 38194294 PMCID: PMC10904043 DOI: 10.1172/jci172578] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Accepted: 01/05/2024] [Indexed: 01/10/2024] Open
Abstract
Patients with chronic inflammatory disorders such as psoriasis have an increased risk of cardiovascular disease and elevated levels of LL37, a cathelicidin host defense peptide that has both antimicrobial and proinflammatory properties. To explore whether LL37 could contribute to the risk of heart disease, we examined its effects on lipoprotein metabolism and show that LL37 enhanced LDL uptake in macrophages through the LDL receptor (LDLR), scavenger receptor class B member 1 (SR-B1), and CD36. This interaction led to increased cytosolic cholesterol in macrophages and changes in expression of lipid metabolism genes consistent with increased cholesterol uptake. Structure-function analysis and synchrotron small-angle x-ray scattering showed structural determinants of the LL37-LDL complex that underlie its ability to bind its receptors and promote uptake. This function of LDL uptake is unique to cathelicidins from humans and some primates and was not observed with cathelicidins from mice or rabbits. Notably, Apoe-/- mice expressing LL37 developed larger atheroma plaques than did control mice, and a positive correlation between plasma LL37 and oxidized phospholipid on apolipoprotein B (OxPL-apoB) levels was observed in individuals with cardiovascular disease. These findings provide evidence that LDL uptake can be increased via interaction with LL37 and may explain the increased risk of cardiovascular disease associated with chronic inflammatory disorders.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | - Adrian F. Gombart
- Linus Pauling Institute, Department of Biochemistry and Biophysics, Oregon State University, Corvallis, Oregon, USA
| | | | - Patrick Secrest
- Department of Medicine, Division of Endocrinology and Metabolism, and
| | - Philip L.S.M. Gordts
- Department of Medicine, Division of Endocrinology and Metabolism, and
- Glycobiology Research and Training Center, UCSD, La Jolla, California, USA
| | | | - Gerard C.L. Wong
- Department of Bioengineering, UCLA, Los Angeles, California, USA
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11
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Huang L, Yang S, Yu X, Fang F, Zhu L, Wang L, Zhang X, Yang C, Qian Q, Zhu T. Association of different cell types and inflammation in early acne vulgaris. Front Immunol 2024; 15:1275269. [PMID: 38357543 PMCID: PMC10864487 DOI: 10.3389/fimmu.2024.1275269] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Accepted: 01/17/2024] [Indexed: 02/16/2024] Open
Abstract
Acne vulgaris, one of the most common skin diseases, is a chronic cutaneous inflammation of the upper pilosebaceous unit (PSU) with complex pathogenesis. Inflammation plays a central role in the pathogenesis of acne vulgaris. During the inflammatory process, the innate and adaptive immune systems are coordinately activated to induce immune responses. Understanding the infiltration and cytokine secretion of differential cells in acne lesions, especially in the early stages of inflammation, will provide an insight into the pathogenesis of acne. The purpose of this review is to synthesize the association of different cell types with inflammation in early acne vulgaris and provide a comprehensive understanding of skin inflammation and immune responses.
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Affiliation(s)
- Lei Huang
- Department of Dermatology, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Shuyun Yang
- Department of Dermatology, The People’s Hospital of Baoshan, Baoshan, Yunnan, China
| | - Xiuqin Yu
- Department of Dermatology, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Fumin Fang
- Department of Dermatology, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Liping Zhu
- Department of Dermatology, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Lu Wang
- Department of Dermatology, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Xiaoping Zhang
- Department of Dermatology, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Changzhi Yang
- Department of Dermatology, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Qihong Qian
- Department of Dermatology, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Tingting Zhu
- Department of Dermatology, The First Affiliated Hospital of Soochow University, Suzhou, China
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12
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Hu YZ, Wu CS, Wang J, Han XQ, Si PY, Zhang YA, Zhang XJ. Antimicrobial Protein LECT2-b Helps Maintain Gut Microbiota Homeostasis via Selectively Targeting Certain Pathogenic Bacteria. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2024; 212:81-95. [PMID: 38038392 DOI: 10.4049/jimmunol.2300180] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Accepted: 08/31/2023] [Indexed: 12/02/2023]
Abstract
Antimicrobial peptides/proteins (AMPs) constitute a critical component of gut immunity in animals, protecting the gut from pathogenic bacteria. However, the interactions between AMPs and gut microbiota remain elusive. In this study, we show that leukocyte-derived chemotaxin-2 (LECT2)-b, a recently discovered AMP, helps maintain gut homeostasis in grass carp (Ctenopharyngodon idella), one of the major farmed fish species globally, by directly regulating the gut microbiota. Knockdown of LECT2-b resulted in dysregulation of the gut microbiota. Specifically, LECT2-b deficiency led to the dominance of Proteobacteria, consisting of proinflammatory bacterial species, over Firmicutes, which includes anti-inflammatory bacteria. In addition, the opportunistic pathogenic bacteria genus Aeromonas became the dominant genus replacing the probiotic bacteria Lactobacillus and Bacillus. Further analysis revealed that this effect was due to the direct and selective inhibition of certain pathogenic bacterial species by LECT2-b. Moreover, LECT2-b knockdown promoted biofilm formation by gut microbiota, resulting in tissue damage and inflammation. Importantly, LECT2-b treatment alleviated the negative effects induced by LECT2-b knockdown. These findings highlight the crucial role of LECT2-b in maintaining the gut microbiota homeostasis and mucosal health. Overall, our study provides important data for understanding the roles of AMPs in the regulation of gut homeostasis in animals.
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Affiliation(s)
- Ya-Zhen Hu
- National Key Laboratory of Agricultural Microbiology, Hubei Hongshan Laboratory, Engineering Research Center of Green Development for Conventional Aquatic Biological Industry in the Yangtze River Economic Belt, Ministry of Education, College of Fisheries, Huazhong Agricultural University, Wuhan, China
| | - Chang-Song Wu
- National Key Laboratory of Agricultural Microbiology, Hubei Hongshan Laboratory, Engineering Research Center of Green Development for Conventional Aquatic Biological Industry in the Yangtze River Economic Belt, Ministry of Education, College of Fisheries, Huazhong Agricultural University, Wuhan, China
| | - Jie Wang
- National Key Laboratory of Agricultural Microbiology, Hubei Hongshan Laboratory, Engineering Research Center of Green Development for Conventional Aquatic Biological Industry in the Yangtze River Economic Belt, Ministry of Education, College of Fisheries, Huazhong Agricultural University, Wuhan, China
| | - Xue-Qing Han
- National Key Laboratory of Agricultural Microbiology, Hubei Hongshan Laboratory, Engineering Research Center of Green Development for Conventional Aquatic Biological Industry in the Yangtze River Economic Belt, Ministry of Education, College of Fisheries, Huazhong Agricultural University, Wuhan, China
| | - Pei-Yue Si
- National Key Laboratory of Agricultural Microbiology, Hubei Hongshan Laboratory, Engineering Research Center of Green Development for Conventional Aquatic Biological Industry in the Yangtze River Economic Belt, Ministry of Education, College of Fisheries, Huazhong Agricultural University, Wuhan, China
| | - Yong-An Zhang
- National Key Laboratory of Agricultural Microbiology, Hubei Hongshan Laboratory, Engineering Research Center of Green Development for Conventional Aquatic Biological Industry in the Yangtze River Economic Belt, Ministry of Education, College of Fisheries, Huazhong Agricultural University, Wuhan, China
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, China
- Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China
| | - Xu-Jie Zhang
- National Key Laboratory of Agricultural Microbiology, Hubei Hongshan Laboratory, Engineering Research Center of Green Development for Conventional Aquatic Biological Industry in the Yangtze River Economic Belt, Ministry of Education, College of Fisheries, Huazhong Agricultural University, Wuhan, China
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, China
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13
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Stafuzza NB, Freitas ACD, Mioto MB, Silva RMDO, Fragomeni BDO, Pedrosa VB, Costa RLDD, Paz CCPD. Weighted single-step genome-wide association study and functional enrichment analyses for gastrointestinal nematode resistance traits in Santa Ines sheep. Vet Parasitol 2023; 323:110047. [PMID: 37857178 DOI: 10.1016/j.vetpar.2023.110047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Revised: 10/03/2023] [Accepted: 10/05/2023] [Indexed: 10/21/2023]
Abstract
This study aimed to identify genomic regions, pathways, and putative candidate genes associated with resistance to gastrointestinal nematode in Santa Ines sheep. The phenotypic information comprised 5529 records from 1703 naturally infected animals. After genomic data quality control, 37,511 SNPs from 589 animals were available. The weighted single-step approach for genome-wide association study was performed to estimate the SNP effects and variances accounted by 10-SNP sliding windows. Confirming the polygenic nature of the studied traits, 20, 22, 21, and 19 genomic windows that explained more than 0.5% of the additive genetic variance were identified for fecal egg counts (FEC), Famacha© (FAM), packed cell volume (PCV), and total plasma protein (TPP), respectively. A total of 81, 122, 106, and 101 protein-coding genes were found in windows associated with FEC, FAM, PCV, and TPP, respectively. Several protein-coding genes related to the immune system and inflammatory response functions were identified within those genomic regions, such as ADCY9, ADRB2, BRAF, CADM1, CCL20, CD70, CREBBP, FNBP1, HTR4, IL16, IL22, IL26, MAPK8, NDFIP1, NLRC3, PAK5, PLCB1, PLCB4, ROCK1, TEK, TNFRSF12A, and VAV1. Functional enrichment analysis by DAVID tool also revealed many significant (P < 0.05) pathways and Gene Ontology terms that could be related to resistance to gastrointestinal nematode in Santa Ines sheep, such as chemokine signaling pathway (oas04062), cAMP signaling pathway (oas04024), cGMP-PKG signaling pathway (Oas04022), platelet activation (Oas04611), Rap1 signaling pathway (oas04015), and oxidoreductase activity, acting on paired donors, with incorporation or reduction of molecular oxygen (GO:0016705). These results contribute to improving the knowledge of the genetic architecture of resistance to gastrointestinal nematode in Santa Ines sheep.
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Affiliation(s)
- Nedenia Bonvino Stafuzza
- Sustainable Livestock Research Center, Animal Science Institute, 15130-000 São José do Rio Preto, SP, Brazil.
| | - Ana Claudia de Freitas
- São Paulo Agency of Agribusiness and Technology, Animal Science Institute, 13380-011 Nova Odessa, SP, Brazil; Agricultural Research Agency of the State of Minas Gerais, 38709-899 Patos de Minas, MG, Brazil
| | - Marina B Mioto
- Sustainable Livestock Research Center, Animal Science Institute, 15130-000 São José do Rio Preto, SP, Brazil
| | | | | | - Victor Breno Pedrosa
- Department of Animal Science, State University of Ponta Grossa, 84030-900 Ponta Grossa, PR, Brazil
| | - Ricardo Lopes Dias da Costa
- São Paulo Agency of Agribusiness and Technology, Animal Science Institute, 13380-011 Nova Odessa, SP, Brazil
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14
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Simpson EL, Schlievert PM, Yoshida T, Lussier S, Boguniewicz M, Hata T, Fuxench Z, De Benedetto A, Ong PY, Ko J, Calatroni A, Rudman Spergel AK, Plaut M, Quataert SA, Kilgore SH, Peterson L, Gill AL, David G, Mosmann T, Gill SR, Leung DYM, Beck LA. Rapid reduction in Staphylococcus aureus in atopic dermatitis subjects following dupilumab treatment. J Allergy Clin Immunol 2023; 152:1179-1195. [PMID: 37315812 PMCID: PMC10716365 DOI: 10.1016/j.jaci.2023.05.026] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Revised: 05/05/2023] [Accepted: 05/11/2023] [Indexed: 06/16/2023]
Abstract
BACKGROUND Atopic dermatitis (AD) is an inflammatory disorder characterized by dominant type 2 inflammation leading to chronic pruritic skin lesions, allergic comorbidities, and Staphylococcus aureus skin colonization and infections. S aureus is thought to play a role in AD severity. OBJECTIVES This study characterized the changes in the host-microbial interface in subjects with AD following type 2 blockade with dupilumab. METHODS Participants (n = 71) with moderate-severe AD were enrolled in a randomized (dupilumab vs placebo; 2:1), double-blind study at Atopic Dermatitis Research Network centers. Bioassays were performed at multiple time points: S aureus and virulence factor quantification, 16s ribosomal RNA microbiome, serum biomarkers, skin transcriptomic analyses, and peripheral blood T-cell phenotyping. RESULTS At baseline, 100% of participants were S aureus colonized on the skin surface. Dupilumab treatment resulted in significant reductions in S aureus after only 3 days (compared to placebo), which was 11 days before clinical improvement. Participants with the greatest S aureus reductions had the best clinical outcomes, and these reductions correlated with reductions in serum CCL17 and disease severity. Reductions (10-fold) in S aureus cytotoxins (day 7), perturbations in TH17-cell subsets (day 14), and increased expression of genes relevant for IL-17, neutrophil, and complement pathways (day 7) were also observed. CONCLUSIONS Blockade of IL-4 and IL-13 signaling, very rapidly (day 3) reduces S aureus abundance in subjects with AD, and this reduction correlates with reductions in the type 2 biomarker, CCL17, and measures of AD severity (excluding itch). Immunoprofiling and/or transcriptomics suggest a role for TH17 cells, neutrophils, and complement activation as potential mechanisms to explain these findings.
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Affiliation(s)
- Eric L Simpson
- Department of Dermatology, Oregon Health and Science University, Portland, Ore
| | | | - Takeshi Yoshida
- Department of Dermatology, University of Rochester School of Medicine and Dentistry, Rochester, NY
| | | | - Mark Boguniewicz
- Division of Allergy-Immunology, Department of Pediatrics, National Jewish Health and University of Colorado School of Medicine, Denver, Colo
| | - Tissa Hata
- Department of Dermatology, University of California, San Diego, Calif
| | - Zelma Fuxench
- Department of Dermatology, University of Pennsylvania, Philadelphia, Pa
| | - Anna De Benedetto
- Department of Dermatology, University of Rochester School of Medicine and Dentistry, Rochester, NY
| | - Peck Y Ong
- Department of Pediatrics, University Southern California, Los Angeles, Calif
| | - Justin Ko
- Department of Dermatology, Stanford University, Stanford, Calif
| | | | - Amanda K Rudman Spergel
- Division of Allergy, Immunology, and Transplantation, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Md
| | - Marshall Plaut
- Division of Allergy, Immunology, and Transplantation, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Md
| | - Sally A Quataert
- Center for Vaccine Biology and Immunology, University of Rochester Medical Center, Rochester, NY
| | - Samuel H Kilgore
- Department of Microbiology and Immunology, University of Iowa, Iowa City, Iowa
| | - Liam Peterson
- Department of Dermatology, University of Rochester School of Medicine and Dentistry, Rochester, NY
| | - Ann L Gill
- Department of Microbiology and Immunology, University of Rochester Medical Center, Rochester, NY
| | | | - Tim Mosmann
- Center for Vaccine Biology and Immunology, University of Rochester Medical Center, Rochester, NY
| | - Steven R Gill
- Department of Microbiology and Immunology, University of Rochester Medical Center, Rochester, NY
| | - Donald Y M Leung
- Division of Allergy-Immunology, Department of Pediatrics, National Jewish Health and University of Colorado School of Medicine, Denver, Colo.
| | - Lisa A Beck
- Department of Dermatology, University of Rochester School of Medicine and Dentistry, Rochester, NY.
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15
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Zheng Y, Han F, Ho A, Xue Y, Wu Z, Chen X, Sandberg JK, Ma S, Leeansyah E. Role of MAIT cells in gastrointestinal tract bacterial infections in humans: More than a gut feeling. Mucosal Immunol 2023; 16:740-752. [PMID: 37353006 DOI: 10.1016/j.mucimm.2023.06.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Revised: 06/12/2023] [Accepted: 06/15/2023] [Indexed: 06/25/2023]
Abstract
Mucosa-associated invariant T (MAIT) cells are the largest population of unconventional T cells in humans. These antimicrobial T cells are poised with rapid effector responses following recognition of the cognate riboflavin (vitamin B2)-like metabolite antigens derived from microbial riboflavin biosynthetic pathway. Presentation of this unique class of small molecule metabolite antigens is mediated by the highly evolutionarily conserved major histocompatibility complex class I-related protein. In humans, MAIT cells are widely found along the upper and lower gastrointestinal tracts owing to their high expression of chemokine receptors and homing molecules directing them to these tissue sites. In this review, we discuss recent findings regarding the roles MAIT cells play in various gastrointestinal bacterial infections, and how their roles appear to differ depending on the etiological agents and the anatomical location. We further discuss the potential mechanisms by which MAIT cells contribute to pathogen control, orchestrate adaptive immunity, as well as their potential contribution to inflammation and tissue damage during gastrointestinal bacterial infections, and the ensuing tissue repair following resolution. Finally, we propose and discuss the use of the emerging three-dimensional organoid technology to test different hypotheses regarding the role of MAIT cells in gastrointestinal bacterial infections, inflammation, and immunity.
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Affiliation(s)
- Yichao Zheng
- Institute of Biopharmaceutical and Health Engineering, Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen, China; Precision Medicine and Healthcare Research Centre, Tsinghua-Berkeley Shenzhen Institute, Tsinghua University, Shenzhen, China
| | - Fei Han
- Institute of Biopharmaceutical and Health Engineering, Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen, China
| | - Amanda Ho
- Institute of Biopharmaceutical and Health Engineering, Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen, China; Precision Medicine and Healthcare Research Centre, Tsinghua-Berkeley Shenzhen Institute, Tsinghua University, Shenzhen, China
| | - Yiting Xue
- Institute of Biopharmaceutical and Health Engineering, Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen, China; Precision Medicine and Healthcare Research Centre, Tsinghua-Berkeley Shenzhen Institute, Tsinghua University, Shenzhen, China
| | - Zhengyu Wu
- Institute of Biopharmaceutical and Health Engineering, Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen, China
| | - Xingchi Chen
- Institute of Biopharmaceutical and Health Engineering, Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen, China
| | - Johan K Sandberg
- Center for Infectious Medicine, Department of Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Shaohua Ma
- Institute of Biopharmaceutical and Health Engineering, Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen, China; Precision Medicine and Healthcare Research Centre, Tsinghua-Berkeley Shenzhen Institute, Tsinghua University, Shenzhen, China
| | - Edwin Leeansyah
- Institute of Biopharmaceutical and Health Engineering, Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen, China.
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16
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Fries A, Saidoune F, Kuonen F, Dupanloup I, Fournier N, Guerra de Souza AC, Haniffa M, Ma F, Gudjonsson JE, Roesner L, Li Y, Werfel T, Conrad C, Gottardo R, Modlin RL, Di Domizio J, Gilliet M. Differentiation of IL-26 + T H17 intermediates into IL-17A producers via epithelial crosstalk in psoriasis. Nat Commun 2023; 14:3878. [PMID: 37391412 PMCID: PMC10313793 DOI: 10.1038/s41467-023-39484-4] [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: 01/24/2023] [Accepted: 06/15/2023] [Indexed: 07/02/2023] Open
Abstract
Interleukin (IL)-26 is a TH17 cytokine with known antimicrobial and pro-inflammatory functions. However, the precise role of IL-26 in the context of pathogenic TH17 responses is unknown. Here we identify a population of blood TH17 intermediates that produce high levels of IL-26 and differentiate into IL-17A-producing TH17 cells upon TGF-β1 exposure. By combining single cell RNA sequencing, TCR sequencing and spatial transcriptomics we show that this process occurs in psoriatic skin. In fact, IL-26+ TH17 intermediates infiltrating psoriatic skin induce TGF-β1 expression in basal keratinocytes and thereby promote their own differentiation into IL-17A-producing cells. Thus, our study identifies IL-26-producing cells as an early differentiation stage of TH17 cells that infiltrates psoriatic skin and controls its own maturation into IL17A-producing TH17 cells, via epithelial crosstalk involving paracrine production of TGF-β1.
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Affiliation(s)
- Anissa Fries
- Department of Dermatology, CHUV University Hospital and University of Lausanne (UNIL), Lausanne, Switzerland
| | - Fanny Saidoune
- Department of Dermatology, CHUV University Hospital and University of Lausanne (UNIL), Lausanne, Switzerland
| | - François Kuonen
- Department of Dermatology, CHUV University Hospital and University of Lausanne (UNIL), Lausanne, Switzerland
| | - Isabelle Dupanloup
- Translational Data Science Facility, Agora Cancer Research Center, Swiss Institute of Bioinformatics, Lausanne, Switzerland
| | - Nadine Fournier
- Translational Data Science Facility, Agora Cancer Research Center, Swiss Institute of Bioinformatics, Lausanne, Switzerland
| | - Ana Cristina Guerra de Souza
- Translational Data Science Facility, Agora Cancer Research Center, Swiss Institute of Bioinformatics, Lausanne, Switzerland
| | - Muzlifah Haniffa
- Department of Dermatology and NIHR Newcastle Biomedical Research Centre, Newcastle Hospitals NHS Foundation Trust, Newcastle upon Tyne, NE2 4LP, UK
| | - Feiyang Ma
- Department of Dermatology, University of Michigan, Ann Arbor, MI, 48109, USA
| | - Johann E Gudjonsson
- Department of Dermatology, University of Michigan, Ann Arbor, MI, 48109, USA
| | - Lennart Roesner
- Department of Dermatology, Hannover Medical School, Hannover, Germany
- Cluster of Excellence RESIST (EXC 2155), Hannover Medical School, Hannover, Germany
| | - Yang Li
- Department of Computational Biology for Individualised Medicine, Centre for Individualised Infection Medicine (CiiM), Helmholtz Centre for Infection Research (HZI), Hannover Medical School (MHH), Hannover, Germany
| | - Thomas Werfel
- Department of Dermatology, Hannover Medical School, Hannover, Germany
- Cluster of Excellence RESIST (EXC 2155), Hannover Medical School, Hannover, Germany
| | - Curdin Conrad
- Department of Dermatology, CHUV University Hospital and University of Lausanne (UNIL), Lausanne, Switzerland
| | - Raphael Gottardo
- Biomedical Data Sciences Center, CHUV, UNIL, and SIB, Lausanne, Switzerland
| | - Robert L Modlin
- Division of Dermatology, Department of Medicine, University of California, Los Angeles, CA, 90095, USA
| | - Jeremy Di Domizio
- Department of Dermatology, CHUV University Hospital and University of Lausanne (UNIL), Lausanne, Switzerland.
| | - Michel Gilliet
- Department of Dermatology, CHUV University Hospital and University of Lausanne (UNIL), Lausanne, Switzerland.
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17
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Paulsson M, Cardenas EI, Che KF, Brundin B, Smith M, Qvarfordt I, Lindén A. TLR4-mediated release of heparin-binding protein in human airways: a co-stimulatory role for IL-26. Front Immunol 2023; 14:1178135. [PMID: 37234157 PMCID: PMC10206387 DOI: 10.3389/fimmu.2023.1178135] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Accepted: 04/25/2023] [Indexed: 05/27/2023] Open
Abstract
Background Bacterial infection causes accumulation of neutrophils that release antimicrobial proteins including heparin-binding protein (HBP). In human airways, this neutrophil accumulation can be re-capitulated via intrabronchial exposure to lipopolysaccharide (LPS), a Toll-like receptor 4 (TLR4) agonist, that also causes a local increase in the neutrophil-mobilizing cytokine IL-26. Although LPS is considered a weak stimulus for HBP release ex vivo, its effect on HBP release in human airways in vivo has not been characterized. Methods We determined whether intrabronchial exposure to LPS causes concomitant release of HBP and IL-26 in human airways, and whether IL-26 can enhance LPS-induced release of HBP in isolated human neutrophils. Results We found that the concentration of HBP was markedly increased in bronchoalveolar lavage (BAL) fluid 12, 24, and 48 hours after LPS exposure, and that it displayed a strong and positive correlation with that of IL-26. Moreover, the concentration of HBP in conditioned media from isolated neutrophils was enhanced only after co-stimulation with LPS and IL-26. Conclusions Taken together, our findings indicate that TLR4 stimulation causes concomitant release of HBP and IL-26 in human airways, and that IL-26 may constitute a required co-stimulant for HBP release in neutrophils, thus enabling the concerted action of HBP and IL-26 in local host defense.
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Affiliation(s)
- Magnus Paulsson
- Division of Infection Medicine, Department of Clinical Sciences, Faculty of Medicine, Lund University, Lund, Sweden
- Department of Clinical Microbiology, Laboratory Medicine, Skåne University Hospital, Lund, Sweden
| | - Eduardo I. Cardenas
- Division of Lung and Airway Research, Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Karlhans F. Che
- Division of Lung and Airway Research, Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Bettina Brundin
- Division of Lung and Airway Research, Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Margaretha Smith
- Division of Respiratory Medicine and Allergology, Department of Internal Medicine and Clinical Nutrition, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Ingemar Qvarfordt
- Division of Respiratory Medicine and Allergology, Department of Internal Medicine and Clinical Nutrition, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Anders Lindén
- Division of Lung and Airway Research, Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
- Karolinska Severe COPD Center, Department of Respiratory Medicine and Allergy, Karolinska University Hospital Solna, Stockholm, Sweden
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18
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Abstract
IL-17 cytokine family members have diverse biological functions, promoting protective immunity against many pathogens but also driving inflammatory pathology during infection and autoimmunity. IL-17A and IL-17F are produced by CD4+ and CD8+ T cells, γδ T cells, and various innate immune cell populations in response to IL-1β and IL-23, and they mediate protective immunity against fungi and bacteria by promoting neutrophil recruitment, antimicrobial peptide production and enhanced barrier function. IL-17-driven inflammation is normally controlled by regulatory T cells and the anti-inflammatory cytokines IL-10, TGFβ and IL-35. However, if dysregulated, IL-17 responses can promote immunopathology in the context of infection or autoimmunity. Moreover, IL-17 has been implicated in the pathogenesis of many other disorders with an inflammatory basis, including cardiovascular and neurological diseases. Consequently, the IL-17 pathway is now a key drug target in many autoimmune and chronic inflammatory disorders; therapeutic monoclonal antibodies targeting IL-17A, both IL-17A and IL-17F, the IL-17 receptor, or IL-23 are highly effective in some of these diseases. However, new approaches are needed to specifically regulate IL-17-mediated immunopathology in chronic inflammation and autoimmunity without compromising protective immunity to infection.
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Affiliation(s)
- Kingston H G Mills
- School of Biochemistry and Immunology, Trinity Biomedical Science Institute, Trinity College Dublin, Dublin, Ireland.
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19
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Hatano R, Itoh T, Otsuka H, Saeki H, Yamamoto A, Song D, Shirakawa Y, Iyama S, Sato T, Iwao N, Harada N, Aune TM, Dang NH, Kaneko Y, Yamada T, Morimoto C, Ohnuma K. Humanized anti-IL-26 monoclonal antibody as a novel targeted therapy for chronic graft-versus-host disease. Am J Transplant 2022; 22:2804-2820. [PMID: 35997569 DOI: 10.1111/ajt.17178] [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: 05/06/2022] [Revised: 07/12/2022] [Accepted: 08/17/2022] [Indexed: 01/25/2023]
Abstract
IL-26 is a Th17 cytokine, with its gene being absent in rodents. To characterize the in vivo immunological effects of IL-26 in chronic systemic inflammation, we used human IL26 transgenic (hIL-26Tg) mice and human umbilical cord blood mononuclear cells (hCBMC) in mouse allogeneic-graft-versus-host disease (GVHD) and chronic xenogeneic-GVHD model, respectively. Transfer of bone marrow and spleen T cells from hIL-26Tg mice into B10.BR mice resulted in GVHD progression, with clinical signs of tissue damage in multiple organs. IL-26 markedly increased neutrophil levels both in the GVHD-target tissues and peripheral blood. Expression levels of Th17 cytokines in hIL-26Tg mice-derived donor CD4 T cells were significantly increased, whereas IL-26 did not affect cytotoxic function of donor CD8 T cells. In addition, granulocyte-colony stimulating factor, IL-1β, and IL-6 levels were particularly enhanced in hIL-26Tg mice. We also developed a humanized neutralizing anti-IL-26 monoclonal antibody (mAb) for therapeutic use, and its administration after onset of chronic xenogeneic-GVHD mitigated weight loss and prolonged survival, with preservation of graft-versus-leukemia effect. Taken together, our data elucidate the in vivo immunological effects of IL-26 in chronic GVHD models and suggest that a humanized anti-IL-26 mAb may be a potential therapeutic agent for the treatment of chronic GVHD.
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Affiliation(s)
- Ryo Hatano
- Department of Therapy Development and Innovation for Immune Disorders and Cancers, Graduate School of Medicine, Juntendo University, Tokyo, Japan
| | - Takumi Itoh
- Department of Therapy Development and Innovation for Immune Disorders and Cancers, Graduate School of Medicine, Juntendo University, Tokyo, Japan.,Atopy (Allergy) Research Center, Graduate School of Medicine, Juntendo University, Tokyo, Japan
| | - Haruna Otsuka
- Department of Therapy Development and Innovation for Immune Disorders and Cancers, Graduate School of Medicine, Juntendo University, Tokyo, Japan
| | - Harumi Saeki
- Department of Human Pathology, Graduate School of Medicine, Juntendo University, Tokyo, Japan
| | - Ayako Yamamoto
- Department of Therapy Development and Innovation for Immune Disorders and Cancers, Graduate School of Medicine, Juntendo University, Tokyo, Japan
| | - Dan Song
- Department of Therapy Development and Innovation for Immune Disorders and Cancers, Graduate School of Medicine, Juntendo University, Tokyo, Japan
| | - Yuki Shirakawa
- Department of Therapy Development and Innovation for Immune Disorders and Cancers, Graduate School of Medicine, Juntendo University, Tokyo, Japan
| | - Satoshi Iyama
- Department of Hematology, Sapporo Medical University School of Medicine, Hokkaido, Japan
| | - Tsutomu Sato
- Department of Hematology, Toyama University Hospital, Toyama, Japan
| | - Noriaki Iwao
- Department of Hematology, Juntendo University Shizuoka Hospital, Shizuoka, Japan
| | - Norihiro Harada
- Department of Respiratory Medicine, Juntendo University Faculty of Medicine and Graduate School of Medicine, Tokyo, Japan
| | - Thomas M Aune
- Department of Medicine, Vanderbilt University School of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Nam H Dang
- Division of Hematology/Oncology, University of Florida, Gainesville, Florida, USA
| | | | - Taketo Yamada
- Department of Pathology, Saitama Medical University, Saitama, Japan.,Department of Pathology, Keio University School of Medicine, Tokyo, Japan
| | - Chikao Morimoto
- Department of Therapy Development and Innovation for Immune Disorders and Cancers, Graduate School of Medicine, Juntendo University, Tokyo, Japan
| | - Kei Ohnuma
- Department of Therapy Development and Innovation for Immune Disorders and Cancers, Graduate School of Medicine, Juntendo University, Tokyo, Japan
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20
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Cardenas EI, Ekstedt S, Piersiala K, Petro M, Karlsson A, Kågedal Å, Kumlien Georén S, Cardell LO, Lindén A. Increased IL-26 associates with markers of hyperinflammation and tissue damage in patients with acute COVID-19. Front Immunol 2022; 13:1016991. [DOI: 10.3389/fimmu.2022.1016991] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Accepted: 10/26/2022] [Indexed: 11/18/2022] Open
Abstract
Interleukin-26 (IL-26) is released by several immune and structural cells following stimulation of toll-like receptors (TLRs), whereupon it can directly inhibit viral replication and enhance neutrophil chemotaxis. Given these unique properties, IL-26 has emerged as an intriguing mediator of host defense in the lungs. However, the role of IL-26 in COVID-19 has not been thoroughly investigated. Here, we characterized the involvement of IL-26 in the hyperinflammation and tissue damage that occurs in patients with acute COVID-19. We found that IL-26 is markedly increased in blood samples from these patients, and that the concentration of IL-26 correlates with those of the neutrophil-mobilizing cytokines IL-8 and TNFα, respectively. Moreover, the increase in blood IL-26 correlates with enhanced surface expression of the “don’t eat me” signal CD47 on blood neutrophils isolated from patients with acute COVID-19. Finally, we found that the blood concentration of IL-26 correlates with that of increased lactate dehydrogenase, an established marker of tissue damage, and decreased mean corpuscular hemoglobin (MCH), a previously verified hematological aberration in COVID-19, both of which are associated with severe disease. Thus, our findings indicate that increased systemic IL-26 associates with markers of hyperinflammation and tissue damage in patients with acute COVID-19, thereby forwarding the kinocidin IL-26 as a potential target for diagnosis, monitoring, and therapy in this deadly disease.
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21
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Mizuno Y, Shibata S, Ito Y, Taira H, Sugimoto E, Awaji K, Sato S. Interleukin-26–DNA complexes promote inflammation and dermal-epidermal separation in a modified human cryosection model of bullous pemphigoid. Front Immunol 2022; 13:1013382. [PMID: 36311716 PMCID: PMC9599390 DOI: 10.3389/fimmu.2022.1013382] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2022] [Accepted: 09/22/2022] [Indexed: 11/16/2022] Open
Abstract
Bullous pemphigoid (BP) is an autoimmune disease characterized by autoantibody-mediated activation of immune cells and subepidermal blister formation. Excess amounts of extracellular DNA are produced in BP, however, it remains unclear how extracellular DNA contributes to BP pathogenesis. Here we show a possible mechanism by which interleukin (IL)-26 binds to extracellular DNA released from neutrophils and eosinophils to support DNA sensing. Patients with BP exhibited high circulating levels of IL-26, forming IL-26–DNA complexes in the upper dermis and inside the blisters. IL-26–DNA complexes played a dual role in regulating local immunity and blister formation. First, they enhanced the production of inflammatory cytokines in monocytes and neutrophils. Second, and importantly, the complexes augmented the production and activity of proteases from co-cultured monocytes and neutrophils, which induced BP180 cleavage in keratinocytes and dermal-epidermal separation in a modified human cryosection model. Collectively, we propose a model in which IL-26 and extracellular DNA synergistically act on immune cells to enhance autoantibody-driven local immune responses and protease-mediated fragility of dermal-epidermal junction in BP.
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22
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Bartziokas K, Fouka E, Loukides S, Steiropoulos P, Bakakos P, Papaioannou AI. IL-26 in the Lung and Its Role in COPD Inflammation. J Pers Med 2022; 12:jpm12101685. [PMID: 36294822 PMCID: PMC9605572 DOI: 10.3390/jpm12101685] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2022] [Revised: 10/02/2022] [Accepted: 10/07/2022] [Indexed: 11/05/2022] Open
Abstract
IL-26 is a cytokine expressed by infiltrating pro-inflammatory IL-17-producing T cells in the tissues of patients with chronic lung inflammation. IL-26 induces the chemotactic response of human neutrophils to bacteria and other inflammatory stimuli. In recent years, the innovative properties of IL-26 have been described. Studies have shown that, as DNA is released from damaged cells, it binds to IL-26, which plays the role of a carrier molecule for extracellular DNA, further contributing to its binding to the site of inflammation. This mechanism of action indicates that IL-26 may serve both as a driver as well as a stimulus of the inflammatory process, leading to the installation of a noxious amplification loop and, eventually, persistent inflammation. IL-26 also demonstrates direct antimicrobial effects derived from its capability to create pores and disrupt bacterial membranes, as indicated by the presence of membrane blebs on the surface of the bacteria and cytosolic leakage pores in bacterial walls, produced in response to microbial stimuli in human airways by several different immune and structural cells. Surprisingly, while this particular cytokine induces the gathering of neutrophils in areas of infection, it also exhibits inhibitory and pro-inflammatory effects on airway epithelial and immune cells. These remarkable effects underline the necessity of a better understating of its biological behavior and its role in the pathophysiology and disease burden in several smoking-related airway inflammatory disorders, such as Chronic Obstructive Pulmonary Disease (COPD) and chronic bronchitis. In this review, we aim to discuss the current role of IL-26 in the lung, with an emphasis on systemic inflammation in patients suffering from COPD and chronic bronchitis.
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Affiliation(s)
| | - Evangelia Fouka
- Respiratory Medicine Department, George Papanikolaou Hospital, University of Thessaloniki, 57010 Thessaloniki, Greece
| | - Stelios Loukides
- 2nd Respiratory Medicine Department, “Attikon” University Hospital, National and Kapodistrian University of Athens, 12462 Athens, Greece
| | - Paschalis Steiropoulos
- Department of Respiratory Medicine, Medical School, University General Hospital Dragana, Democritus University of Thrace, 68100 Alexandroupolis, Greece
| | - Petros Bakakos
- 1st University Department of Respiratory Medicine, “Sotiria” Hospital, National and Kapodistrian University of Athens, 15772 Athens, Greece
| | - Andriana I. Papaioannou
- 1st University Department of Respiratory Medicine, “Sotiria” Hospital, National and Kapodistrian University of Athens, 15772 Athens, Greece
- Correspondence: ; Tel.: +30-21-0583-1163; Fax: +30-21-0583-1184
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23
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Meermeier EW, Zheng CL, Tran JG, Soma S, Worley AH, Weiss DI, Modlin RL, Swarbrick G, Karamooz E, Khuzwayo S, Wong EB, Gold MC, Lewinsohn DM. Human lung-resident mucosal-associated invariant T cells are abundant, express antimicrobial proteins, and are cytokine responsive. Commun Biol 2022; 5:942. [PMID: 36085311 PMCID: PMC9463188 DOI: 10.1038/s42003-022-03823-w] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Accepted: 08/09/2022] [Indexed: 12/02/2022] Open
Abstract
Mucosal-associated Invariant T (MAIT) cells are an innate-like T cell subset that recognize a broad array of microbial pathogens, including respiratory pathogens. Here we investigate the transcriptional profile of MAIT cells localized to the human lung, and postulate that MAIT cells may play a role in maintaining homeostasis at this mucosal barrier. Using the MR1/5-OP-RU tetramer, we identified MAIT cells and non-MAIT CD8+ T cells in lung tissue not suitable for transplant from human donors. We used RNA-sequencing of MAIT cells compared to non-MAIT CD8+ T cells to define the transcriptome of MAIT cells in the human lung. We show that, as a population, lung MAIT cells are polycytotoxic, secrete the directly antimicrobial molecule IL-26, express genes associated with persistence, and selectively express cytokine and chemokine- related molecules distinct from other lung-resident CD8+ T cells, such as interferon-γ- and IL-12- receptors. These data highlight MAIT cells' predisposition to rapid pro-inflammatory cytokine responsiveness and antimicrobial mechanisms in human lung tissue, concordant with findings of blood-derived counterparts, and support a function for MAIT cells as early sensors in the defense of respiratory barrier function.
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Affiliation(s)
- Erin W Meermeier
- Department of Pulmonary and Critical Care Medicine, Oregon Health & Science University, Portland, OR, 97239, USA
- Department of Medicine, Division of Hematology/Oncology, Mayo Clinic, Scottsdale, AZ, 85259, USA
| | - Christina L Zheng
- Department of Medical Informatics and Clinical Epidemiology, Oregon Health & Science University, Portland, OR, 97239, USA
| | - Jessica G Tran
- VA Portland Health Care System, Portland, OR, 97239, USA
| | - Shogo Soma
- Department of Pulmonary and Critical Care Medicine, Oregon Health & Science University, Portland, OR, 97239, USA
| | - Aneta H Worley
- VA Portland Health Care System, Portland, OR, 97239, USA
| | - David I Weiss
- David Geffen School of Medicine at UCLA, Los Angeles, CA, 90095, USA
| | - Robert L Modlin
- Division of Dermatology, Department of Medicine, David Geffen School of Medicine at University of California, Los Angeles, Los Angeles, CA, 90095, USA
| | - Gwendolyn Swarbrick
- Department of Pulmonary and Critical Care Medicine, Oregon Health & Science University, Portland, OR, 97239, USA
- VA Portland Health Care System, Portland, OR, 97239, USA
| | - Elham Karamooz
- Department of Pulmonary and Critical Care Medicine, Oregon Health & Science University, Portland, OR, 97239, USA
- VA Portland Health Care System, Portland, OR, 97239, USA
| | - Sharon Khuzwayo
- Africa Health Research Institute, Durban, South Africa
- School of Laboratory Medicine and Medical Sciences, University of KwaZulu-Natal, Durban, South Africa
| | - Emily B Wong
- Africa Health Research Institute, Durban, South Africa
- School of Laboratory Medicine and Medical Sciences, University of KwaZulu-Natal, Durban, South Africa
- Division of Infectious Diseases, Massachusetts General Hospital, Boston, MA, USA
- Harvard Medical School, Boston, MA, USA
- Division of Infection and Immunity, University College London, London, UK
| | - Marielle C Gold
- Department of Pulmonary and Critical Care Medicine, Oregon Health & Science University, Portland, OR, 97239, USA
- VA Portland Health Care System, Portland, OR, 97239, USA
| | - David M Lewinsohn
- Department of Pulmonary and Critical Care Medicine, Oregon Health & Science University, Portland, OR, 97239, USA.
- VA Portland Health Care System, Portland, OR, 97239, USA.
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24
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Du Y, Ah Kioon MD, Laurent P, Chaudhary V, Pierides M, Yang C, Oliver D, Ivashkiv LB, Barrat FJ. Chemokines form nanoparticles with DNA and can superinduce TLR-driven immune inflammation. J Exp Med 2022; 219:213252. [PMID: 35640018 DOI: 10.1084/jem.20212142] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2021] [Revised: 03/24/2022] [Accepted: 05/12/2022] [Indexed: 12/13/2022] Open
Abstract
Chemokines control the migratory patterns and positioning of immune cells to organize immune responses to pathogens. However, many chemokines have been associated with systemic autoimmune diseases that have chronic IFN signatures. We report that a series of chemokines, including CXCL4, CXCL10, CXCL12, and CCL5, can superinduce type I IFN (IFN-I) by TLR9-activated plasmacytoid DCs (pDCs), independently of their respective known chemokine receptors. Mechanistically, we show that chemokines such as CXCL4 mediate transcriptional and epigenetic changes in pDCs, mostly targeted to the IFN-I pathways. We describe that chemokines physically interact with DNA to form nanoparticles that promote clathrin-mediated cellular uptake and delivery of DNA in the early endosomes of pDCs. Using two separate mouse models of skin inflammation, we observed the presence of CXCL4 associated with DNA in vivo. These data reveal a noncanonical role for chemokines to serve as nucleic acid delivery vectors to modulate TLR signaling, with implications for the chronic presence of IFN-I by pDCs in autoimmune diseases.
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Affiliation(s)
- Yong Du
- HSS Research Institute, Hospital for Special Surgery, New York, NY.,Department of Microbiology and Immunology, Weill Cornell Medical College of Cornell University, New York, NY
| | | | - Paoline Laurent
- HSS Research Institute, Hospital for Special Surgery, New York, NY.,Department of Microbiology and Immunology, Weill Cornell Medical College of Cornell University, New York, NY
| | - Vidyanath Chaudhary
- HSS Research Institute, Hospital for Special Surgery, New York, NY.,Department of Microbiology and Immunology, Weill Cornell Medical College of Cornell University, New York, NY
| | - Michael Pierides
- HSS Research Institute, Hospital for Special Surgery, New York, NY
| | - Chao Yang
- HSS Research Institute, Hospital for Special Surgery, New York, NY
| | - David Oliver
- HSS Research Institute, Hospital for Special Surgery, New York, NY.,David Z. Rosensweig Genomics Research Center, Hospital for Special Surgery, New York, NY
| | - Lionel B Ivashkiv
- HSS Research Institute, Hospital for Special Surgery, New York, NY.,David Z. Rosensweig Genomics Research Center, Hospital for Special Surgery, New York, NY.,Department of Medicine, Weill Cornell Medical College of Cornell University, New York, NY
| | - Franck J Barrat
- HSS Research Institute, Hospital for Special Surgery, New York, NY.,Department of Microbiology and Immunology, Weill Cornell Medical College of Cornell University, New York, NY.,David Z. Rosensweig Genomics Research Center, Hospital for Special Surgery, New York, NY
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25
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Ouyang K, Oparaugo N, Nelson AM, Agak GW. T Cell Extracellular Traps: Tipping the Balance Between Skin Health and Disease. Front Immunol 2022; 13:900634. [PMID: 35795664 PMCID: PMC9250990 DOI: 10.3389/fimmu.2022.900634] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Accepted: 05/23/2022] [Indexed: 11/30/2022] Open
Abstract
The role of extracellular traps (ETs) in the innate immune response against pathogens is well established. ETs were first identified in neutrophils and have since been identified in several other immune cells. Although the mechanistic details are not yet fully understood, recent reports have described antigen-specific T cells producing T cell extracellular traps (TETs). Depending on their location within the cutaneous environment, TETs may be beneficial to the host by their ability to limit the spread of pathogens and provide protection against damage to body tissues, and promote early wound healing and degradation of inflammatory mediators, leading to the resolution of inflammatory responses within the skin. However, ETs have also been associated with worse disease outcomes. Here, we consider host-microbe ET interactions by highlighting how cutaneous T cell-derived ETs aid in orchestrating host immune responses against Cutibacterium acnes (C. acnes), a commensal skin bacterium that contributes to skin health, but is also associated with acne vulgaris and surgical infections following joint-replacement procedures. Insights on the role of the skin microbes in regulating T cell ET formation have broad implications not only in novel probiotic design for acne treatment, but also in the treatment for other chronic inflammatory skin disorders and autoimmune diseases.
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Affiliation(s)
- Kelsey Ouyang
- Cleveland Clinic Lerner College of Medicine of Case Western Reserve University, Cleveland, OH, United States
- Division of Dermatology, Department of Medicine, University of California, Los Angeles (UCLA), Los Angeles, CA, United States
- David Geffen School of Medicine at University of California, Los Angeles (UCLA), Los Angeles, CA, United States
| | - Nicole Oparaugo
- David Geffen School of Medicine at University of California, Los Angeles (UCLA), Los Angeles, CA, United States
| | - Amanda M. Nelson
- Department of Dermatology, Penn State University College of Medicine, Hershey, PA, United States
| | - George W. Agak
- Division of Dermatology, Department of Medicine, University of California, Los Angeles (UCLA), Los Angeles, CA, United States
- *Correspondence: George W. Agak,
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26
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Hawerkamp HC, Fahy CMR, Fallon PG, Schwartz C. Break on through: The role of innate immunity and barrier defence in atopic dermatitis and psoriasis. SKIN HEALTH AND DISEASE 2022; 2:e99. [PMID: 35677926 PMCID: PMC9168024 DOI: 10.1002/ski2.99] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Revised: 01/07/2022] [Accepted: 01/23/2022] [Indexed: 12/20/2022]
Abstract
The human skin can be affected by a multitude of diseases including inflammatory conditions such as atopic dermatitis and psoriasis. Here, we describe how skin barrier integrity and immunity become dysregulated during these two most common inflammatory skin conditions. We summarise recent advances made in the field of the skin innate immune system and its interaction with adaptive immunity. We review gene variants associated with atopic dermatitis and psoriasis that affect innate immune mechanisms and skin barrier integrity. Finally, we discuss how current and future therapies may affect innate immune responses and skin barrier integrity in a generalized or more targeted approach in order to ameliorate disease in patients.
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Affiliation(s)
- H C Hawerkamp
- Trinity Biomedical Sciences Institute, School of Medicine, Trinity College Dublin Dublin Ireland
| | - C M R Fahy
- Paediatric Dermatology Children's Health Ireland at Crumlin Dublin Ireland.,Royal United Hospitals NHS Foundation Trust Bath UK
| | - P G Fallon
- Trinity Biomedical Sciences Institute, School of Medicine, Trinity College Dublin Dublin Ireland.,National Children's Research Centre Our Lady's Children's Hospital Dublin Ireland.,Clinical Medicine Trinity College Dublin Dublin Ireland
| | - C Schwartz
- Trinity Biomedical Sciences Institute, School of Medicine, Trinity College Dublin Dublin Ireland.,Mikrobiologisches Institut - Klinische Mikrobiologie, Immunologie und Hygiene Universitätsklinikum Erlangen and Friedrich-Alexander Universität (FAU) Erlangen-Nürnberg Erlangen Germany.,Medical Immunology Campus Erlangen FAU Erlangen-Nürnberg Erlangen Germany
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27
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Xiao X, Lu H, Zhu W, Zhang Y, Huo X, Yang C, Xiao S, Zhang Y, Su J. A Novel Antimicrobial Peptide Derived from Bony Fish IFN1 Exerts Potent Antimicrobial and Anti-Inflammatory Activity in Mammals. Microbiol Spectr 2022; 10:e0201321. [PMID: 35289673 PMCID: PMC9045357 DOI: 10.1128/spectrum.02013-21] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2021] [Accepted: 02/15/2022] [Indexed: 11/22/2022] Open
Abstract
Type I interferons (IFN-Is) are critical antiviral cytokine in innate immunity but with limited direct defense ability against bacterial infections in mammals. In bony fish, despite all the IFN-Is (IFN1-4) act in antiviral immunity, studies demonstrate that IFN1 can remarkably contribute to host defense against bacterial infections. In this study, we found that IFN1 from grass carp (Ctenopharyngodon idella) contains an unusual cationic and amphipathic α-helical region (named as gcIFN-20, sequence: SYEKKINRHFKILKKNLKKK). The synthesized peptide gcIFN-20 could form α-helical structure in a membrane environment and exerts potent antimicrobial activity against multiple species of Gram-negative (G-) and Gram-positive (G+) bacteria with negligible toxicity. Mechanism studies showed gcIFN-20 kills G+ bacteria through membrane disruption and cytoplasm outflow while G- bacteria through membrane permeation and protein synthesis inhibition. In two mouse bacterial infection models, gcIFN-20 therapy could significantly reduce tissue bacterial loads and mortalities. In addition to the direct antibacterial activity, we also found that gcIFN-20 could significantly suppress the lipopolysaccharide (LPS)-induced pro-inflammatory cytokines in vitro and in vivo, obviously alleviated lung lesions in a mouse endotoxemia model. The mechanism is that gcIFN-20 interacts with LPS, causes LPS aggregation and neutralization. The antimicrobial and anti-inflammatory activities in vivo of gcIFN-20 in mammalian models suggested a promising agent for developing peptide-based antibacterial therapy. IMPORTANCE Type I interferons play crucial role in antiviral immunity in both vertebrates and invertebrates. The powerful antimicrobial activity is recently reported in nonmammalian vertebrates. The present study identified a novel antimicrobial peptide (gcIFN-20) derived from grass carp interferon 1, found gcIFN-20 exhibits forceful bactericidal and anti-inflammatory activity in mammals, and efficient therapeutic effect against two clinical severe extraintestinal pathogenic Escherichia coli and a mouse endotoxemia models. The antimicrobial mechanisms are membrane disruption and cytoplasm overflow for Gram-positive bacteria, while membrane permeation and protein synthesis inhibition for Gram-negative bacteria. The anti-inflammatory mechanisms can be aggregating and neutralizing lipopolysaccharide to attenuate the binding with receptors and facilitate phagocytosis. The results indicate that gcIFN-20 can be a promising novel therapeutic agent for bacterial diseases and inflammatory disorders, especially as a potential weapon for multidrug resistant strain infections.
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Affiliation(s)
- Xun Xiao
- Department of Aquatic Animal Medicine, College of Fisheries, Huazhong Agricultural University, Wuhan, China
- Laboratory for Marine Biology and Biotechnology, Pilot National Laboratory for Marine Science and Technology, Qingdao, China
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
| | - Hao Lu
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
| | - Wentao Zhu
- Department of Aquatic Animal Medicine, College of Fisheries, Huazhong Agricultural University, Wuhan, China
| | - Yanqi Zhang
- Department of Aquatic Animal Medicine, College of Fisheries, Huazhong Agricultural University, Wuhan, China
| | - Xingchen Huo
- Department of Aquatic Animal Medicine, College of Fisheries, Huazhong Agricultural University, Wuhan, China
| | - Chunrong Yang
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
| | - Shaobo Xiao
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
| | - Yongan Zhang
- Department of Aquatic Animal Medicine, College of Fisheries, Huazhong Agricultural University, Wuhan, China
- Hubei Hongshan Laboratory, Engineering Research Center of Green development for Conventional Aquatic Biological Industry in the Yangtze River Economic Belt, Ministry of Education, Wuhan, China
| | - Jianguo Su
- Department of Aquatic Animal Medicine, College of Fisheries, Huazhong Agricultural University, Wuhan, China
- Laboratory for Marine Biology and Biotechnology, Pilot National Laboratory for Marine Science and Technology, Qingdao, China
- Hubei Hongshan Laboratory, Engineering Research Center of Green development for Conventional Aquatic Biological Industry in the Yangtze River Economic Belt, Ministry of Education, Wuhan, China
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28
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Song D, Lai L, Lu J, Tong J, Ran Z. Interleukin-26 Expression in Inflammatory Bowel Disease and Its Immunoregulatory Effects on Macrophages. Front Med (Lausanne) 2022; 9:797135. [PMID: 35463017 PMCID: PMC9019154 DOI: 10.3389/fmed.2022.797135] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2021] [Accepted: 02/28/2022] [Indexed: 11/13/2022] Open
Abstract
Background and Aim Interleukin-26 (IL-26) has been implicated in several chronic inflammatory diseases. However, its role in inflammatory bowel disease (IBD) remains to be elucidated. We aimed to investigate IL-26 expression in IBD and its immunoregulatory effects on macrophages. Methods We assessed IL-26 expression in the intestinal mucosa and blood samples of IBD patients and healthy controls (HC). The associations between the clinical characteristics of IBD and IL-26 expression levels in serum and peripheral blood mononuclear cells (PBMCs) were investigated. In addition, the transcriptional changes in THP-1 macrophages exposed to IL-26 were determined by RNA sequencing and validated with qRT-PCR, ELISA and western blots. Results Compared with HC, in IBD patients, IL-26 expression levels were elevated in the inflamed intestinal mucosa, and reduced in serum and PBMCs. IL-26 mRNA levels in PBMCs, but not serum IL-26 levels, were inversely correlated with disease activity in IBD. Furthermore, IL-26 mRNA levels in PBMCs were significantly lower in patients with complicated Crohn's disease. A total of 1,303 differentially expressed protein-coding genes were identified between untreated and IL-26-treated macrophages. The up-regulated genes showed enrichment in some inflammatory and immune-related processes and pathways. Additionally, GSEA showed that neutrophil, monocyte, and lymphocyte chemotaxis was significantly enriched in IL-26-treated macrophages. Further validation revealed that IL-26 promotes the secretion of multiple inflammatory cytokines and chemokines and upregulates the expression of adhesion molecules, MMP-8, and MMP-9 while inhibiting MMP-1 in macrophages. Conclusion Compared with HC, in IBD patients, IL-26 levels were elevated in the inflamed intestinal mucosa, and reduced in the peripheral blood. The transcriptional changes in macrophages exposed to IL-26 suggest that IL-26 may amplify the aberrant immune response in IBD by activating macrophages.
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Affiliation(s)
- Dongjuan Song
- Division of Gastroenterology and Hepatology, Key Laboratory of Gastroenterology and Hepatology, Ministry of Health, Inflammatory Bowel Disease Research Center, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai Institute of Digestive Disease, Shanghai, China
| | - Lijie Lai
- Division of Gastroenterology and Hepatology, Key Laboratory of Gastroenterology and Hepatology, Ministry of Health, Inflammatory Bowel Disease Research Center, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai Institute of Digestive Disease, Shanghai, China
| | - Juntao Lu
- Division of Gastroenterology and Hepatology, Key Laboratory of Gastroenterology and Hepatology, Ministry of Health, Inflammatory Bowel Disease Research Center, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai Institute of Digestive Disease, Shanghai, China
| | - Jinlu Tong
- Division of Gastroenterology and Hepatology, Key Laboratory of Gastroenterology and Hepatology, Ministry of Health, Inflammatory Bowel Disease Research Center, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai Institute of Digestive Disease, Shanghai, China
| | - Zhihua Ran
- Division of Gastroenterology and Hepatology, Key Laboratory of Gastroenterology and Hepatology, Ministry of Health, Inflammatory Bowel Disease Research Center, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai Institute of Digestive Disease, Shanghai, China
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29
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Hu YZ, Ma ZY, Wu CS, Wang J, Zhang YA, Zhang XJ. LECT2 Is a Novel Antibacterial Protein in Vertebrates. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2022; 208:2037-2053. [PMID: 35365566 DOI: 10.4049/jimmunol.2100812] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Accepted: 02/09/2022] [Indexed: 06/14/2023]
Abstract
In vertebrates, leukocyte-derived chemotaxin-2 (LECT2) is an important immunoregulator with conserved chemotactic and phagocytosis-stimulating activities to leukocytes during bacterial infection. However, whether LECT2 possesses direct antibacterial activity remains unknown. In this article, we show that, unlike tetrapods with a single LECT2 gene, two LECT2 genes exist in teleost fish, named LECT2-a and LECT2-b Using grass carp as a research model, we found that the expression pattern of grass carp LECT2-a (gcLECT2-a) is more similar to that of LECT2 in tetrapods, while gcLECT2-b has evolved to be highly expressed in mucosal immune organs, including the intestine and skin. Interestingly, we found that gcLECT2-b, with conserved chemotactic and phagocytosis-stimulating activities, can also kill Gram-negative and Gram-positive bacteria directly in a membrane-dependent and a non-membrane-dependent manner, respectively. Moreover, gcLECT2-b could prevent the adherence of bacteria to epithelial cells through agglutination by targeting peptidoglycan and lipoteichoic acid. Further study revealed that gcLECT2-b can protect grass carp from Aeromonas hydrophila infection in vivo, because it significantly reduces intestinal necrosis and tissue bacterial load. More importantly, we found that LECT2 from representative tetrapods, except human, also possesses direct antibacterial activities, indicating that the direct antibacterial property of LECT2 is generally conserved in vertebrates. Taken together, to our knowledge, our study discovered a novel function of LECT2 in the antibacterial immunity of vertebrates, especially teleost fish, greatly enhancing our knowledge of this important molecule.
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Affiliation(s)
- Ya-Zhen Hu
- State Key Laboratory of Agricultural Microbiology, College of Fisheries, Huazhong Agricultural University, Wuhan, China
- Engineering Research Center of Green Development for Conventional Aquatic Biological Industry in the Yangtze River Economic Belt, Ministry of Education, Wuhan, China
| | - Zi-You Ma
- State Key Laboratory of Agricultural Microbiology, College of Fisheries, Huazhong Agricultural University, Wuhan, China
- Engineering Research Center of Green Development for Conventional Aquatic Biological Industry in the Yangtze River Economic Belt, Ministry of Education, Wuhan, China
| | - Chang-Song Wu
- State Key Laboratory of Agricultural Microbiology, College of Fisheries, Huazhong Agricultural University, Wuhan, China
- Engineering Research Center of Green Development for Conventional Aquatic Biological Industry in the Yangtze River Economic Belt, Ministry of Education, Wuhan, China
| | - Jie Wang
- State Key Laboratory of Agricultural Microbiology, College of Fisheries, Huazhong Agricultural University, Wuhan, China
- Engineering Research Center of Green Development for Conventional Aquatic Biological Industry in the Yangtze River Economic Belt, Ministry of Education, Wuhan, China
| | - Yong-An Zhang
- State Key Laboratory of Agricultural Microbiology, College of Fisheries, Huazhong Agricultural University, Wuhan, China;
- Engineering Research Center of Green Development for Conventional Aquatic Biological Industry in the Yangtze River Economic Belt, Ministry of Education, Wuhan, China
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, China
- Hubei Hongshan Laboratory, Wuhan, China; and
- Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China
| | - Xu-Jie Zhang
- State Key Laboratory of Agricultural Microbiology, College of Fisheries, Huazhong Agricultural University, Wuhan, China;
- Engineering Research Center of Green Development for Conventional Aquatic Biological Industry in the Yangtze River Economic Belt, Ministry of Education, Wuhan, China
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IL-26 inhibits hepatitis C virus replication in hepatocytes. J Hepatol 2022; 76:822-831. [PMID: 34952035 DOI: 10.1016/j.jhep.2021.12.011] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Revised: 11/15/2021] [Accepted: 12/07/2021] [Indexed: 12/17/2022]
Abstract
BACKGROUND & AIMS Interleukin-26 (IL-26) is a proinflammatory cytokine that has properties atypical for a cytokine, such as direct antibacterial activity and DNA-binding capacity. We previously observed an accumulation of IL-26 in fibrotic and inflammatory lesions in the livers of patients with chronic HCV infection and showed that infiltrating CD3+ lymphocytes were the principal source of IL-26. Surprisingly, IL-26 was also detected in the cytoplasm of hepatocytes from HCV-infected patients, even though these cells do not produce IL-26, even when infected with HCV. Based on this observation and possible interactions between IL-26 and nucleic acids, we investigated the possibility that IL-26 controlled HCV infection independently of the immune system. METHODS We evaluated the ability of IL-26 to interfere with HCV replication in hepatocytes and investigated the mechanisms by which IL-26 exerts its antiviral activity. RESULTS We showed that IL-26 penetrated HCV-infected hepatocytes, where it interacted directly with HCV double-stranded RNA replication intermediates, thereby inhibiting viral replication. IL-26 interfered with viral RNA-dependent RNA polymerase activity, preventing the de novo synthesis of viral genomic single-stranded RNA. CONCLUSIONS These findings reveal a new role for IL-26 in direct protection against HCV infection, independently of the immune system, and increase our understanding of the antiviral defense mechanisms controlling HCV infection. Future studies should evaluate the possible use of IL-26 for treating other chronic disorders caused by RNA viruses, for which few treatments are currently available, or emerging RNA viruses. LAY SUMMARY This study sheds new light on the body's arsenal for controlling hepatitis C virus (HCV) infection and identifies interleukin-26 (IL-26) as an antiviral molecule capable of blocking HCV replication. IL-26, which has unique biochemical and structural characteristics, penetrates infected hepatocytes and interacts directly with viral RNA, thereby blocking viral replication. IL-26 is, therefore, a new player in antiviral defenses, operating independently of the immune system. It is of considerable potential interest for treating HCV infection and other chronic disorders caused by RNA viruses for which few treatments are currently available, and for combating emerging RNA viruses.
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Muhsin A, Rangel R, Vien L, Bover L. Monoclonal Antibodies Generation: Updates and Protocols on Hybridoma Technology. METHODS IN MOLECULAR BIOLOGY (CLIFTON, N.J.) 2022; 2435:73-93. [PMID: 34993940 DOI: 10.1007/978-1-0716-2014-4_6] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
Since its inception in 1975, the hybridoma technology revolutionized science and medicine, facilitating discoveries in almost any field from the laboratory to the clinic. Many technological advancements have been developed since then, to create these "magical bullets." Phage and yeast display libraries expressing the variable heavy and light domains of antibodies, single B-cell cloning from immunized animals of different species including humans or in silico approaches, all have rendered a myriad of newly developed antibodies or improved design of existing ones. However, still the majority of these antibodies or their recombinant versions are from hybridoma origin, a preferred methodology that trespass species barriers, due to the preservation of the natural functions of immune cells in producing the humoral response: antigen specific immunoglobulins. Remarkably, this methodology can be reproduced in small laboratories without the need of sophisticate equipment. In this chapter, we will describe the most recent methods utilized by our Monoclonal Antibodies Core Facility at the University of Texas-M.D. Anderson Cancer Center. During the last 10 years, the methods, techniques, and expertise implemented in our core had generated more than 350 antibodies for various applications.
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Affiliation(s)
- Ahmed Muhsin
- Department of Immunology, The University of Texas MD Anderson Cancer Center (MDACC), Houston, TX, USA.,Center for Translational Cancer Research, Institute of Biosciences and Technology, Texas A&M University, Houston, TX, USA
| | - Roberto Rangel
- Department of Head and Neck Surgery, The University of Texas MD Anderson Cancer Center (MDACC), Houston, TX, USA
| | - Long Vien
- Department of Immunology, The University of Texas MD Anderson Cancer Center (MDACC), Houston, TX, USA
| | - Laura Bover
- Department of Immunology, The University of Texas MD Anderson Cancer Center (MDACC), Houston, TX, USA. .,Department of Genomic Medicine, The University of Texas MD Anderson Cancer Center (MDACC), Houston, TX, USA.
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Abstract
INTRODUCTION New targets are needed to enable more accurate diagnosis, monitoring and effective therapy in uncontrolled asthma and chronic obstructive pulmonary disease (COPD), two disorders characterized by pathogenic alterations in the innate immune response. Interestingly, the IL-10-related cytokine IL-26 has been found to be abundantly expressed in human airways and alterations in its expression have been linked to reduced lung function and markers of neutrophilic inflammation in patients with uncontrolled asthma or COPD. AREAS COVERED Literature search was conducted on PubMed to identify articles in the field of IL-26 immunology, as well as clinical studies on IL-26 in asthma and COPD, published between 2000 and 2021. We outline the main sources of IL-26 in human airways, as well as the effect of this cytokine on relevant immune and structural cells. Finally, we discuss the potential involvement of IL-26 in the pathophysiology of uncontrolled asthma and COPD. EXPERT OPINION IL-26 constitutes a potential target for diagnostic purposes and therapeutic modulation of the innate immune response in the airways of patients with asthma and COPD. It seems reasonable to expect more conclusive evidence of its clinical utility for personalized medicine within the coming 5-year period.
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Affiliation(s)
- Eduardo I Cardenas
- Division of Lung and Airway Research, Institute of Environmental Medicine, Karolinska Institute, Stockholm, Sweden
| | - Karlhans Fru Che
- Division of Lung and Airway Research, Institute of Environmental Medicine, Karolinska Institute, Stockholm, Sweden
| | - Jon R Konradsen
- Division of Clinical Immunology and Allergy, Department of Medicine Solna, Karolinska Institute, Stockholm, Sweden.,Center for Allergy Research, Karolinska Institute, Stockholm, Sweden.,Astrid Lindgren Children's Hospital, Karolinska University Hospital Solna, Stockholm, Sweden
| | - Aihua Bao
- Division of Lung and Airway Research, Institute of Environmental Medicine, Karolinska Institute, Stockholm, Sweden.,Department of Respiratory and Critical Care Medicine, Shanghai General Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, P. R. China
| | - Anders Lindén
- Division of Lung and Airway Research, Institute of Environmental Medicine, Karolinska Institute, Stockholm, Sweden.,Karolinska Severe COPD Center, Department of Respiratory Medicine and Allergy, Karolinska University Hospital Solna, Stockholm, Sweden
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Liu L, Hu J, Wang Y, Lei H, Xu D. The role and research progress of the balance and interaction between regulatory T cells and other immune cells in obesity with insulin resistance. Adipocyte 2021; 10:66-79. [PMID: 33472506 PMCID: PMC7834085 DOI: 10.1080/21623945.2021.1876375] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Metabolic homoeostasis in adipose tissue plays a major role in obesity-related insulin resistance (IR). Regulatory T (Treg) cells have been recorded to regulate metabolic homoeostasis in adipose tissue. However, their specific mechanism is not yet known. This review aims to present the role of Treg cells and other immune cells in obesity-associated IR, focusing on the balance of numbers and functions of Treg cells and other immune cells as well as the crucial role of their interactions in maintaining adipose tissue homoeostasis. Th1 cells, Th17 cells, CD8+ T cells, and pro-inflammatory macrophages mediate the occurrence of obesity and IR by antagonizing Treg cells, while anti-inflammatory dendritic cells, eosinophils and type 2 innate lymphoid cells (ILC2s) regulate the metabolic homoeostasis of adipose tissue by promoting the proliferation and differentiation of Treg cells. γ δ T cells and invariant natural killer T (iNKT) cells have complex effects on Treg cells, and their roles in obesity-associated IR are controversial. The balance of Treg cells and other immune cells can help maintain the metabolic homoeostasis of adipose tissue. Further research needs to explore more specific molecular mechanisms, thus providing more precise directions for the treatment of obesity with IR.
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Affiliation(s)
- Leiling Liu
- Department of Cardiovascular Medicine, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Jiahui Hu
- Department of Cardiovascular Medicine, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Yating Wang
- Department of Cardiovascular Medicine, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Hao Lei
- Department of Cardiovascular Medicine, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Danyan Xu
- Department of Cardiovascular Medicine, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
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Che KF, Paulsson M, Piersiala K, Sax J, Mboob I, Rahman M, Rekha RS, Säfholm J, Adner M, Bergman P, Cardell LO, Riesbeck K, Lindén A. Complex Involvement of Interleukin-26 in Bacterial Lung Infection. Front Immunol 2021; 12:761317. [PMID: 34777376 PMCID: PMC8581676 DOI: 10.3389/fimmu.2021.761317] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2021] [Accepted: 10/12/2021] [Indexed: 01/16/2023] Open
Abstract
Pneumonia is a global cause of mortality, and this provides a strong incentive to improve the mechanistic understanding of innate immune responses in the lungs. Here, we characterized the involvement of the cytokine interleukin (IL)-26 in bacterial lung infection. We observed markedly increased concentrations of IL-26 in lower airway samples from patients with bacterial pneumonia and these correlated with blood neutrophil concentrations. Moreover, pathogen-associated molecular patterns (PAMPs) from both Gram-negative and -positive bacteria increased extracellular IL-26 concentrations in conditioned media from human models of alveolar epithelial cells, macrophages, and neutrophils in vitro. Stimulation with IL-26 inhibited the inherent release of neutrophil elastase and myeloperoxidase in unexposed neutrophils. This stimulation also inhibited the expression of activity makers in neutrophils exposed to Klebsiella pneumoniae. In addition, priming of human lung tissue ex vivo with exogenous IL-26 potentiated the endotoxin-induced increase in mRNA for other cytokines involved in the innate immune response, including the master Th17-regulator IL-23 and the archetype inhibitory cytokine IL-10. Finally, neutralization of endogenous IL-26 clearly increased the growth of Klebsiella pneumoniae in the macrophage culture. These findings suggest that IL-26 is involved in bacterial lung infection in a complex manner, by modulating critical aspects of innate immune responses locally and systemically in a seemingly purposeful manner and by contributing to the killing of bacteria in a way that resembles an antimicrobial peptide. Thus, IL-26 displays both diagnostic and therapeutic potential in pneumonia and deserves to be further evaluated in these respects.
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Affiliation(s)
- Karlhans F Che
- Unit for Lung and Airway Research, Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden.,Karolinska Severe Chronic Obstructive Pulmonary Disease (COPD) Center, Department of Respiratory Medicine and Allergy, Karolinska University Hospital Solna, Stockholm, Sweden
| | - Magnus Paulsson
- Clinical Microbiology, Department of Translational Medicine, Faculty of Medicine, Lund University, Malmö, Sweden.,Division of Infection Medicine, Department of Clinical Sciences, Faculty of Medicine, Lund University, Lund, Sweden.,Department of Infectious Diseases, Skåne University Hospital, Lund, Sweden
| | - Krzysztof Piersiala
- Division of Ear Nose and Throat (ENT) Diseases, Department of Clinical Sciences, Intervention and Technology, Karolinska Institutet, Stockholm, Sweden.,Department of Ear Nose and Throat (ENT) Diseases, Karolinska University Hospital, Stockholm, Sweden
| | - Jakob Sax
- Unit for Lung and Airway Research, Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Ibrahim Mboob
- Unit for Lung and Airway Research, Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Mizanur Rahman
- Unit of Integrative Toxicology, Institute of Environmental Medicine (IMM), Karolinska Institutet, Stockholm, Sweden
| | - Rokeya S Rekha
- Division of Clinical Microbiology, Department of Laboratory Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Jesper Säfholm
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden.,Centre for Allergy Research, Karolinska Institutet, Stockholm, Sweden
| | - Mikael Adner
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden.,Centre for Allergy Research, Karolinska Institutet, Stockholm, Sweden
| | - Peter Bergman
- Division of Clinical Microbiology, Department of Laboratory Medicine, Karolinska Institutet, Stockholm, Sweden.,Immunodeficiency Unit, Department of Infectious Disease, Karolinska University Hospital, Stockholm, Sweden
| | - Lars-Olaf Cardell
- Division of Ear Nose and Throat (ENT) Diseases, Department of Clinical Sciences, Intervention and Technology, Karolinska Institutet, Stockholm, Sweden.,Department of Ear Nose and Throat (ENT) Diseases, Karolinska University Hospital, Stockholm, Sweden
| | - Kristian Riesbeck
- Clinical Microbiology, Department of Translational Medicine, Faculty of Medicine, Lund University, Malmö, Sweden
| | - Anders Lindén
- Unit for Lung and Airway Research, Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden.,Karolinska Severe Chronic Obstructive Pulmonary Disease (COPD) Center, Department of Respiratory Medicine and Allergy, Karolinska University Hospital Solna, Stockholm, Sweden
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Hansen BT, Maschkowitz G, Podschun R, Fickenscher H. The Kinocidin Interleukin-26 Shows Immediate Antimicrobial Effects Even to Multi-resistant Isolates. Front Microbiol 2021; 12:757215. [PMID: 34733265 PMCID: PMC8558509 DOI: 10.3389/fmicb.2021.757215] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2021] [Accepted: 09/28/2021] [Indexed: 11/24/2022] Open
Abstract
The cationic proinflammatory cytokine Interleukin 26 (IL-26) shows antibacterial activity and inhibits the replication of cytomegalovirus and hepatitis C virus. This study evaluates the early microbicidal activities of IL-26 against major bacterial species including multi-resistant variants and Candida albicans. Recombinant IL-26 was bacterially expressed and studied for its microbicidal effects in culture. We show that IL-26 has strong 90% bactericidal activities against Enterococcus faecalis, Enterococcus faecium, Staphylococcus aureus, and Acinetobacter baumannii. Similarly, IL-26 sensitivity was also detectable in vancomycin-resistant Enterococcus species, methicillin-resistant S. aureus, and carbapenem-resistant A. baumannii clinical isolates. Additionally, a significant, albeit weak fungicidal effect against Candida albicans was observed. Activities against Escherichia coli, Klebsiella pneumoniae, and Pseudomonas aeruginosa were not detectable. The proinflammatory cytokine and kinocidin IL-26 shows strong bactericidal activities against A. baumannii and, almost selectively, against Gram-positive bacteria.
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Affiliation(s)
- Bjoern-Thore Hansen
- Institute for Infection Medicine, Christian-Albrecht University of Kiel and University Hospital Schleswig-Holstein, Kiel, Germany
| | - Gregor Maschkowitz
- Institute for Infection Medicine, Christian-Albrecht University of Kiel and University Hospital Schleswig-Holstein, Kiel, Germany
| | - Rainer Podschun
- Institute for Infection Medicine, Christian-Albrecht University of Kiel and University Hospital Schleswig-Holstein, Kiel, Germany
| | - Helmut Fickenscher
- Institute for Infection Medicine, Christian-Albrecht University of Kiel and University Hospital Schleswig-Holstein, Kiel, Germany
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Gowhari Shabgah A, Abdelbasset WK, Sulaiman Rahman H, Bokov DO, Suksatan W, Thangavelu L, Ahmadi M, Malekahmadi M, Gheibihayat SM, Gholizadeh Navashenaq J. A comprehensive review of IL-26 to pave a new way for a profound understanding of the pathobiology of cancer, inflammatory diseases and infections. Immunology 2021; 165:44-60. [PMID: 34716913 DOI: 10.1111/imm.13424] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2021] [Revised: 09/24/2021] [Accepted: 10/21/2021] [Indexed: 11/29/2022] Open
Abstract
Cytokines are considered vital mediators of the immune system. Down- or upregulation of these mediators is linked to several inflammatory and pathologic situations. IL-26 is referred to as an identified member of the IL-10 family and IL-20 subfamily. Due to having a unique cationic structure, IL-26 exerts diverse functions in several diseases. Since IL-26 is mainly secreted from Th17, it is primarily considered a pro-inflammatory cytokine. Upon binding to its receptor complex (IL-10R1/IL-20R2), IL-26 activates multiple signalling mediators, especially STAT1/STAT3. In cancer, IL-26 induces IL-22-producing cells, which consequently decrease cytotoxic T-cell functions and promote tumour growth through activating anti-apoptotic proteins. In hypersensitivity conditions such as rheumatoid arthritis, multiple sclerosis, psoriasis and allergic disease, this cytokine functions primarily as the disease-promoting mediator and might be considered a biomarker for disease prognosis. Although IL-26 exerts antimicrobial function in infections such as hepatitis, tuberculosis and leprosy, it has also been shown that IL-26 might be involved in the pathogenesis and exacerbation of sepsis. Besides, the involvement of IL-26 has been confirmed in other conditions, including graft-versus-host disease and chronic obstructive pulmonary disease. Therefore, due to the multifarious function of this cytokine, it is proposed that the underlying mechanism regarding IL-26 function should be elucidated. Collectively, it is hoped that the examination of IL-26 in several contexts might be promising in predicting disease prognosis and might introduce novel approaches in the treatment of various diseases.
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Affiliation(s)
- Arezoo Gowhari Shabgah
- School of Medicine, Bam University of Medical Sciences, Bam, Iran.,Student Research Committee, Bam University of Medical Sciences, Bam, Iran
| | - Walid Kamal Abdelbasset
- Department of Health and Rehabilitation Sciences, College of Applied Medical Sciences, Prince Sattam bin Abdulaziz University, Al Kharj, Saudi Arabia.,Department of Physical Therapy, Kasr Al-Aini Hospital, Cairo University, Giza, Egypt
| | - Heshu Sulaiman Rahman
- Department of Physiology, College of Medicine, University of Sulaimani, Sulaymaniyah, Iraq.,Department of Medical Laboratory Sciences, Komar University of Science and Technology, Sulaymaniyah, Iraq
| | - Dmitry O Bokov
- Institute of Pharmacy, Sechenov First Moscow State Medical University, Moscow, Russia.,Laboratory of Food Chemistry, Federal Research Center of Nutrition, Biotechnology and Food Safety, Moscow, Russia
| | - Wanich Suksatan
- Faculty of Nursing, HRH Princess Chulabhorn College of Medical Science, Chulabhorn Royal Academy, Bangkok, Thailand
| | - Lakshmi Thangavelu
- Department of Pharmacology, Saveetha institute of medical and Technical Sciences, Saveetha Dental College and Hospital, Saveetha University, Chennai, India
| | - Majid Ahmadi
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mahsa Malekahmadi
- Research Center for Gastroenterology and Liver Disease, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Seyed Mohammad Gheibihayat
- Department of Biotechnology, Faculty of Medicine, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
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Interleukin-26 Has Synergistic Catabolic Effects with Palmitate in Human Articular Chondrocytes via the TLR4-ERK1/2-c-Jun Signaling Pathway. Cells 2021; 10:cells10092500. [PMID: 34572149 PMCID: PMC8471695 DOI: 10.3390/cells10092500] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Revised: 09/17/2021] [Accepted: 09/18/2021] [Indexed: 12/24/2022] Open
Abstract
The inflammatory cytokine interleukin-26 (IL-26) is highly expressed in the serum and synovial fluid of patients with inflammatory arthritis. The effect of IL-26 on human articular chondrocytes (HACs) remains unclear. Obesity is associated with disability of patients with rheumatoid arthritis and disease activity in those with ankylosing spondylitis. The saturated free fatty acid palmitate with IL-1β can synergistically induce catabolic effects in HACs. The aim of this study was to evaluate the effects of IL-26 and palmitate in HACs. In this study, palmitate markedly synergizes the IL-26-induced proinflammatory effects and matrix protease, including COX-2, IL-6, and MMP-1, in HACs via the toll-like receptor 4 (TLR4)-ERK1/2-c-Jun signal transduction pathway. The synergistic catabolic effects of palmitate and IL-26 were attenuated by inhibitors of TLR4 (TAK242), ERK1/2 (U0126), or c-Jun (SP600125) in HACs and cartilage matrix. In addition, metformin, a potential inhibitor of TLR4, also decreased expression of COX-2 and IL-6 induced by co-incubation with IL-26 and palmitate. IL-26 and palmitate synergistically induced expression of inflammatory and catabolic mediators, resulting in articular cartilage matrix breakdown. The present study also revealed a possible mechanism and therapeutic targets against articular cartilage degradation by increased saturated fatty acids in patients with inflammatory arthritis.
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Agak GW, Mouton A, Teles RM, Weston T, Morselli M, Andrade PR, Pellegrini M, Modlin RL. Extracellular traps released by antimicrobial TH17 cells contribute to host defense. J Clin Invest 2021; 131:141594. [PMID: 33211671 DOI: 10.1172/jci141594] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2020] [Accepted: 11/12/2020] [Indexed: 12/19/2022] Open
Abstract
TH17 cell subpopulations have been defined that contribute to inflammation and homeostasis, yet the characteristics of TH17 cells that contribute to host defense against infection are not clear. To elucidate the antimicrobial machinery of the TH17 subset, we studied the response to Cutibacterium acnes, a skin commensal that is resistant to IL-26, the only known TH17-secreted protein with direct antimicrobial activity. We generated C. acnes-specific antimicrobial TH17 clones (AMTH17) with varying antimicrobial activity against C. acnes, which we correlated by RNA sequencing to the expression of transcripts encoding proteins that contribute to antimicrobial activity. Additionally, we validated that AMTH17-mediated killing of C. acnes and bacterial pathogens was dependent on the secretion of granulysin, granzyme B, perforin, and histone H2B. We found that AMTH17 cells can release fibrous structures composed of DNA decorated with histone H2B that entangle C. acnes that we call T cell extracellular traps (TETs). Within acne lesions, H2B and IL-17 colocalized in CD4+ T cells, in proximity to TETs in the extracellular space composed of DNA decorated with H2B. This study identifies a functionally distinct subpopulation of TH17 cells with an ability to form TETs containing secreted antimicrobial proteins that capture and kill bacteria.
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Affiliation(s)
- George W Agak
- Division of Dermatology, Department of Medicine, David Geffen School of Medicine, UCLA, Los Angeles, California, USA
| | - Alice Mouton
- Department of Ecology and Evolutionary Biology, UCLA, Los Angeles, California, USA
| | - Rosane Mb Teles
- Division of Dermatology, Department of Medicine, David Geffen School of Medicine, UCLA, Los Angeles, California, USA
| | - Thomas Weston
- Department of Medicine, David Geffen School of Medicine, UCLA, Los Angeles, California, USA
| | - Marco Morselli
- Department of Molecular, Cell and Developmental Biology, and.,Institute for Quantitative and Computational Biosciences - The Collaboratory, UCLA, Los Angeles, California, USA
| | - Priscila R Andrade
- Division of Dermatology, Department of Medicine, David Geffen School of Medicine, UCLA, Los Angeles, California, USA
| | - Matteo Pellegrini
- Department of Molecular, Cell and Developmental Biology, and.,Institute for Quantitative and Computational Biosciences - The Collaboratory, UCLA, Los Angeles, California, USA
| | - Robert L Modlin
- Division of Dermatology, Department of Medicine, David Geffen School of Medicine, UCLA, Los Angeles, California, USA.,Department of Microbiology, Immunology and Molecular Genetics, David Geffen School of Medicine, UCLA, Los Angeles, California, USA
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Wallace K, El Nahas GJ, Bookhout C, Thaxton JE, Lewin DN, Nikolaishvili-Feinberg N, Cohen SM, Brazeal JG, Hill EG, Wu JD, Baron JA, Alekseyenko AV. Immune Responses Vary in Preinvasive Colorectal Lesions by Tumor Location and Histology. Cancer Prev Res (Phila) 2021; 14:885-892. [PMID: 34341013 PMCID: PMC8811707 DOI: 10.1158/1940-6207.capr-20-0592] [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: 11/13/2020] [Revised: 03/30/2021] [Accepted: 05/12/2021] [Indexed: 11/16/2022]
Abstract
Immune responses vary in colorectal cancers, which strongly influence prognosis. However, little is known about the variance in immune response within preinvasive lesions. The study aims to investigate how the immune contexture differs by clinicopathologic features (location, histology, dysplasia) associated with progression and recurrence in early carcinogenesis. We performed a cross-sectional study using preinvasive lesions from the surgical pathology laboratory at the Medical University of South Carolina. We stained the tissues with immunofluorescence antibodies, then scanned and analyzed expression using automated image analysis software. We stained CD117 as a marker of mast cells, CD4/RORC to indicate Th17 cells, MICA/B as a marker of NK-cell ligands, and also used antibodies directed against cytokines IL6, IL17A, and IFNγ. We used negative binomial regression analysis to compare analyte density counts by location, histology, degree of dysplasia adjusted for age, sex, race, and batch. All immune markers studied (except IL17a) had significantly higher density counts in the proximal colon than distal colon and rectum. Increases in villous histology were associated with significant decreases in immune responses for IL6, IL17a, NK ligand, and mast cells. No differences were observed in lesions with low- and high-grade dysplasia, except in mast cells. The lesions of the proximal colon were rich in immune infiltrate, paralleling the responses observed in normal mucosa and invasive disease. The diminishing immune response with increasing villous histology suggests an immunologically suppressive tumor environment. Our findings highlight the heterogeneity of the immune responses in preinvasive lesions, which may have implications for prevention strategies. PREVENTION RELEVANCE: Our study is focused on immune infiltrate expression in preinvasive colorectal lesions; our results suggest important differences by clinicopathologic features that have implications for immune prevention research.
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Affiliation(s)
- Kristin Wallace
- Hollings Cancer Center, Medical University of South Carolina (MUSC), Charleston, South Carolina.
- Department of Public Health Sciences, MUSC, Charleston, South Carolina
| | - Georges J El Nahas
- Hollings Cancer Center, Medical University of South Carolina (MUSC), Charleston, South Carolina
- Department of Psychiatry and Behavioral Sciences, MUSC, Charleston, South Carolina
| | - Christine Bookhout
- Department of Pathology, University of North Carolina School of Medicine, Chapel Hill, North Carolina
| | - Jessica E Thaxton
- Hollings Cancer Center, Medical University of South Carolina (MUSC), Charleston, South Carolina
- Department of Microbiology and Immunology, MUSC, Charleston, South Carolina
- Department of Orthopedics and Physical Medicine, MUSC, Charleston, South Carolina
| | - David N Lewin
- Department of Pathology and Laboratory Medicine, MUSC, Charleston, South Carolina
| | | | - Stephanie M Cohen
- Lineberger Cancer Center, University of North Carolina School of Medicine, Chapel Hill, North Carolina
| | - J Grant Brazeal
- Department of Public Health Sciences, MUSC, Charleston, South Carolina
| | - Elizabeth G Hill
- Hollings Cancer Center, Medical University of South Carolina (MUSC), Charleston, South Carolina
- Department of Public Health Sciences, MUSC, Charleston, South Carolina
| | - Jennifer D Wu
- Feinberg School of Medicine, Northwestern University, Chicago, Illinois
| | - John A Baron
- Department of Medicine, University of North Carolina School of Medicine, Chapel Hill, North Carolina
| | - Alexander V Alekseyenko
- Hollings Cancer Center, Medical University of South Carolina (MUSC), Charleston, South Carolina
- Department of Public Health Sciences, MUSC, Charleston, South Carolina
- Department of Oral Health Sciences, The Biomedical Informatics Center, MUSC, Charleston, South Carolina
- Department of Healthcare Leadership and Management, MUSC, Charleston, South Carolina
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Niu Y, Ye L, Peng W, Wang Z, Wei X, Wang X, Li Y, Zhang S, Xiang X, Zhou Q. IL-26 promotes the pathogenesis of malignant pleural effusion by enhancing CD4 + IL-22 + T-cell differentiation and inhibiting CD8 + T-cell cytotoxicity. J Leukoc Biol 2021; 110:39-52. [PMID: 33847412 DOI: 10.1002/jlb.1ma0221-479rr] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Revised: 02/05/2021] [Accepted: 03/03/2021] [Indexed: 01/21/2023] Open
Abstract
IL-26 is a newly discovered IL-10 cytokine family member mainly secreted by Th17 cells. However, the relationship between IL-26 and lung cancer remains unclear. The present study reported that IL-26 is involved in the production and promotion of malignant pleural effusion (MPE) for the first time. The concentrations of IL-26 and several Th17-related cytokines in MPE and peripheral blood (PB) from MPE patients were measured. IL-26, IL-10, and IL-6 were elevated in MPE compared to PB. The cell resource of IL-26 was primary Th17 cells measured by flow cytometry, whereas Tc17 cells and macrophages could also contribute to higher concentration of IL-26 in MPE. Abundant IL-6 and IL-23 in MPE could promote the frequency of IL-26 expressed by CD4+ T cells through phosphorylating STAT3 signaling pathway and promoting the expression of a specific Th17 lineage marker RORγt subsequently. IL-26 could selectively increase Th22 proportion through up-regulating the percentage of Ki-67 expressed by CD4+ T cells and the expression of IL-22 secreted by memory CD4+ T cells. In addition, IL-26 could decrease secretion of granzyme B. The tumor-killing activity of CD8+ T cells were inhibited as well when cocultured with malignant cells. Furthermore, the accumulation of IL-26 protein in MPE predicted poor patient survival. In summary, our results indicated that IL-26 was involved in the pathogenesis of MPE by exerting its impacts on both CD4+ T cells and CD8+ T cells.
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Affiliation(s)
- Yiran Niu
- Department of Respiratory and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Linlin Ye
- Department of Respiratory and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Wenbei Peng
- Department of Respiratory and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Zihao Wang
- Department of Respiratory and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Xiaoshan Wei
- Department of Respiratory and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Xu Wang
- Department of Respiratory and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Yu Li
- Department of Respiratory and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Siyu Zhang
- Department of Respiratory and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Xuan Xiang
- Department of Respiratory and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Qiong Zhou
- Department of Respiratory and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
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Ma F, Hughes TK, Teles RMB, Andrade PR, de Andrade Silva BJ, Plazyo O, Tsoi LC, Do T, Wadsworth MH, Oulee A, Ochoa MT, Sarno EN, Iruela-Arispe ML, Klechevsky E, Bryson B, Shalek AK, Bloom BR, Gudjonsson JE, Pellegrini M, Modlin RL. The cellular architecture of the antimicrobial response network in human leprosy granulomas. Nat Immunol 2021; 22:839-850. [PMID: 34168371 DOI: 10.1038/s41590-021-00956-8] [Citation(s) in RCA: 50] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2020] [Accepted: 05/11/2021] [Indexed: 12/20/2022]
Abstract
Granulomas are complex cellular structures composed predominantly of macrophages and lymphocytes that function to contain and kill invading pathogens. Here, we investigated the single-cell phenotypes associated with antimicrobial responses in human leprosy granulomas by applying single-cell and spatial sequencing to leprosy biopsy specimens. We focused on reversal reactions (RRs), a dynamic process whereby some patients with disseminated lepromatous leprosy (L-lep) transition toward self-limiting tuberculoid leprosy (T-lep), mounting effective antimicrobial responses. We identified a set of genes encoding proteins involved in antimicrobial responses that are differentially expressed in RR versus L-lep lesions and regulated by interferon-γ and interleukin-1β. By integrating the spatial coordinates of the key cell types and antimicrobial gene expression in RR and T-lep lesions, we constructed a map revealing the organized architecture of granulomas depicting compositional and functional layers by which macrophages, T cells, keratinocytes and fibroblasts can each contribute to the antimicrobial response.
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Affiliation(s)
- Feiyang Ma
- Division of Dermatology, Department of Medicine, University of California Los Angeles, Los Angeles, CA, USA.,Department of Microbiology, Immunology and Molecular Genetics, University of California Los Angeles, Los Angeles, CA, USA.,Department of Molecular, Cell and Developmental Biology, University of California Los Angeles, Los Angeles, CA, USA
| | - Travis K Hughes
- Institute for Medical Engineering & Science and Department of Chemistry, MIT, Cambridge, MA, USA.,Department of Immunology, Harvard Medical School, Boston, MA, USA.,Broad Institute of MIT and Harvard, Cambridge, MA, USA.,Ragon Institute of Massachusetts General Hospital MIT and Harvard, Cambridge, MA, USA
| | - Rosane M B Teles
- Division of Dermatology, Department of Medicine, University of California Los Angeles, Los Angeles, CA, USA
| | - Priscila R Andrade
- Division of Dermatology, Department of Medicine, University of California Los Angeles, Los Angeles, CA, USA
| | - Bruno J de Andrade Silva
- Division of Dermatology, Department of Medicine, University of California Los Angeles, Los Angeles, CA, USA
| | - Olesya Plazyo
- Department of Dermatology, University of Michigan, Ann Arbor, MI, USA
| | - Lam C Tsoi
- Department of Dermatology, University of Michigan, Ann Arbor, MI, USA
| | - Tran Do
- Division of Dermatology, Department of Medicine, University of California Los Angeles, Los Angeles, CA, USA
| | - Marc H Wadsworth
- Institute for Medical Engineering & Science and Department of Chemistry, MIT, Cambridge, MA, USA.,Broad Institute of MIT and Harvard, Cambridge, MA, USA.,Ragon Institute of Massachusetts General Hospital MIT and Harvard, Cambridge, MA, USA
| | - Aislyn Oulee
- Division of Dermatology, Department of Medicine, University of California Los Angeles, Los Angeles, CA, USA
| | - Maria Teresa Ochoa
- Department of Dermatology, University of Southern California, Los Angeles, CA, USA
| | - Euzenir N Sarno
- Leprosy Laboratory, Oswaldo Cruz Foundation, Rio de Janeiro, Brazil
| | - M Luisa Iruela-Arispe
- Department of Cell and Developmental Biology, Northwestern University, Feinberg School of Medicine, Chicago, IL, USA
| | - Eynav Klechevsky
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO, USA
| | - Bryan Bryson
- Ragon Institute of Massachusetts General Hospital MIT and Harvard, Cambridge, MA, USA.,Department of Biological Engineering, MIT, Cambridge, MA, USA
| | - Alex K Shalek
- Institute for Medical Engineering & Science and Department of Chemistry, MIT, Cambridge, MA, USA.,Department of Immunology, Harvard Medical School, Boston, MA, USA.,Broad Institute of MIT and Harvard, Cambridge, MA, USA.,Ragon Institute of Massachusetts General Hospital MIT and Harvard, Cambridge, MA, USA
| | - Barry R Bloom
- Department of Immunology and Infectious Diseases, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | | | - Matteo Pellegrini
- Department of Molecular, Cell and Developmental Biology, University of California Los Angeles, Los Angeles, CA, USA
| | - Robert L Modlin
- Division of Dermatology, Department of Medicine, University of California Los Angeles, Los Angeles, CA, USA. .,Department of Microbiology, Immunology and Molecular Genetics, University of California Los Angeles, Los Angeles, CA, USA.
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42
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Itoh T, Hatano R, Horimoto Y, Yamada T, Song D, Otsuka H, Shirakawa Y, Mastuoka S, Iwao N, Aune TM, Dang NH, Kaneko Y, Okumura K, Morimoto C, Ohnuma K. IL-26 mediates epidermal growth factor receptor-tyrosine kinase inhibitor resistance through endoplasmic reticulum stress signaling pathway in triple-negative breast cancer cells. Cell Death Dis 2021; 12:520. [PMID: 34021125 PMCID: PMC8139965 DOI: 10.1038/s41419-021-03787-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2021] [Revised: 05/01/2021] [Accepted: 05/03/2021] [Indexed: 12/12/2022]
Abstract
Triple-negative breast cancer (TNBC) has a poor prognosis compared to other breast cancer subtypes. Although epidermal growth factor receptor (EGFR) is overexpressed in TNBC, clinical trials with EGFR inhibitors including tyrosine kinase inhibitors (EGFR-TKI) in TNBC have heretofore been unsuccessful. To develop effective EGFR-targeted therapy for TNBC, the precise mechanisms of EGFR-TKI resistance in TNBC need to be elucidated. In this study, to understand the molecular mechanisms involved in the differences in EGFR-TKI efficacy on TNBC between human and mouse, we focused on the effect of IL-26, which is absent in mice. In vitro analysis showed that IL-26 activated AKT and JNK signaling of bypass pathway of EGFR-TKI in both murine and human TNBC cells. We next investigated the mechanisms involved in IL-26-mediated EGFR-TKI resistance in TNBC. We identified EphA3 as a novel functional receptor for IL-26 in TNBC. IL-26 induced dephosphorylation and downmodulation of EphA3 in TNBC, which resulted in increased phosphorylation of AKT and JNK against EGFR-TKI-induced endoplasmic reticulum (ER) stress, leading to tumor growth. Meanwhile, the blockade of IL-26 overcame EGFR-TKI resistance in TNBC. Since the gene encoding IL-26 is absent in mice, we utilized human IL-26 transgenic (hIL-26Tg) mice as a tumor-bearing murine model to characterize the role of IL-26 in the differential effect of EGFR-TKI in human and mice and to confirm our in vitro findings. Our findings indicate that IL-26 activates the bypass pathway of EGFR-TKI, while blockade of IL-26 overcomes EGFR-TKI resistance in TNBC via enhancement of ER stress signaling. Our work provides novel insights into the mechanisms of EGFR-TKI resistance in TNBC via interaction of IL-26 with its newly identified receptor EphA3, while also suggesting IL-26 as a possible therapeutic target in TNBC.
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Affiliation(s)
- Takumi Itoh
- Department of Therapy Development and Innovation for Immune Disorders and Cancers, Graduate School of Medicine, Juntendo University, 2-1-1, Hongo, Bunkyo-ku, Tokyo, 113-8421, Japan.,Atopy (Allergy) Research Center, Graduate School of Medicine, Juntendo University, 2-1-1, Hongo, Bunkyo-ku, Tokyo, 113-8421, Japan
| | - Ryo Hatano
- Department of Therapy Development and Innovation for Immune Disorders and Cancers, Graduate School of Medicine, Juntendo University, 2-1-1, Hongo, Bunkyo-ku, Tokyo, 113-8421, Japan
| | - Yoshiya Horimoto
- Department of Breast Oncology, School of Medicine, Juntendo University, 2-1-1, Hongo, Bunkyo-ku, Tokyo, 113-8421, Japan
| | - Taketo Yamada
- Department of Pathology, Saitama Medical University, 38 Morohongo, Moroyama-machi, Iruma-gun, Saitama, 350-0495, Japan.,Department of Pathology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Dan Song
- Department of Therapy Development and Innovation for Immune Disorders and Cancers, Graduate School of Medicine, Juntendo University, 2-1-1, Hongo, Bunkyo-ku, Tokyo, 113-8421, Japan
| | - Haruna Otsuka
- Department of Therapy Development and Innovation for Immune Disorders and Cancers, Graduate School of Medicine, Juntendo University, 2-1-1, Hongo, Bunkyo-ku, Tokyo, 113-8421, Japan
| | - Yuki Shirakawa
- Department of Therapy Development and Innovation for Immune Disorders and Cancers, Graduate School of Medicine, Juntendo University, 2-1-1, Hongo, Bunkyo-ku, Tokyo, 113-8421, Japan
| | - Shuji Mastuoka
- Department of Immunological Diagnosis, Graduate School of Medicine, Juntendo University, 2-1-1, Hongo, Bunkyo-ku, Tokyo, 113-8421, Japan
| | - Noriaki Iwao
- Department of Hematology, Juntendo University Shizuoka Hospital, 1129 Nagaoka, Izunokuni, Shizuoka, 410-2295, Japan
| | - Thomas M Aune
- Department of Medicine, Vanderbilt University School of Medicine, Vanderbilt University Medical Center, Nashville, TN, 37232, USA
| | - Nam H Dang
- Division of Hematology/Oncology, University of Florida, 1600 SW Archer Road-Box 100278, Room MSB M410A, Gainesville, FL, 32610, USA
| | - Yutaro Kaneko
- Y's AC Co., Ltd., 2-6-8 Kudanminami, Chiyoda-ku, Tokyo, 102-0074, Japan
| | - Ko Okumura
- Atopy (Allergy) Research Center, Graduate School of Medicine, Juntendo University, 2-1-1, Hongo, Bunkyo-ku, Tokyo, 113-8421, Japan
| | - Chikao Morimoto
- Department of Therapy Development and Innovation for Immune Disorders and Cancers, Graduate School of Medicine, Juntendo University, 2-1-1, Hongo, Bunkyo-ku, Tokyo, 113-8421, Japan
| | - Kei Ohnuma
- Department of Therapy Development and Innovation for Immune Disorders and Cancers, Graduate School of Medicine, Juntendo University, 2-1-1, Hongo, Bunkyo-ku, Tokyo, 113-8421, Japan.
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Brilland B, Bach-Bunner M, Gomes CN, Larochette V, Foucher E, Plaisance M, Saulnier P, Costedoat-Chalumeau N, Ghillani P, Belizna C, Delneste Y, Augusto JF, Jeannin P. Serum Interleukin-26 Is a New Biomarker for Disease Activity Assessment in Systemic Lupus Erythematosus. Front Immunol 2021; 12:663192. [PMID: 34054830 PMCID: PMC8160525 DOI: 10.3389/fimmu.2021.663192] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Accepted: 05/04/2021] [Indexed: 12/02/2022] Open
Abstract
Objective Interleukin-26 (IL-26) has a unique ability to activate innate immune cells due to its binding to circulating double-stranded DNA. High levels of IL-26 have been reported in patients with chronic inflammation. We aimed to investigate IL-26 levels in patients with systemic lupus erythematosus (SLE). Methods IL-26 serum levels were quantified by ELISA for 47 healthy controls and 109 SLE patients previously enrolled in the PLUS study. Performance of IL-26 levels and classical markers (autoantibodies or complement consumption) to identify an active SLE disease (SLE disease activity index (SLEDAI) score > 4) were compared. Results IL-26 levels were significantly higher in SLE patients than in controls (4.04 ± 11.66 and 0.74 ± 2.02 ng/mL; p = 0.005). IL-26 levels were also significantly higher in patients with active disease than those with inactive disease (33.08 ± 21.06 vs 1.10 ± 3.80 ng/mL, p < 0.0001). IL-26 levels correlated with SLEDAI score and the urine protein to creatinine ratio (uPCR) (p < 0.001). Patients with high IL-26 levels had higher SLEDAI score, anti-DNA antibodies levels, and uPCR (p < 0.05). They presented more frequently with C3 or C4 complement consumption. Lastly, IL-26 showed stronger performance than classical markers (complement consumption or autoantibodies) for active disease identification. Conclusions Our results suggest that, in addition to classical SLE serological markers, the measurement of IL-26 levels may be a useful biomarker for active disease identification in SLE patients.
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Affiliation(s)
- Benoit Brilland
- CHU Angers, Service de Néphrologie-Dialyse-Transplantation, Angers, France.,Univ Angers, CHU Angers, INSERM, CRCINA, Angers, France
| | | | | | | | | | - Marc Plaisance
- Service de Pharmacologie et d'Immunoanalyse, Commissariat à l'Energie Atomique Saclay, iBiTec-S, Gif sur Yvette, France
| | - Patrick Saulnier
- Univ Angers, INSERM, CNRS, MINT, Angers, France.,CHU Angers, Département de Bio-Statistiques et de Méthodologie, Angers, France
| | - Nathalie Costedoat-Chalumeau
- Internal Medicine Department, Referral Center for Rare Autoimmune and Systemic Diseases, Hospital Cochin, Paris, France
| | - Pascale Ghillani
- Internal Medicine Department, Referral Center for Rare Autoimmune and Systemic Diseases, Hospital Cochin, Paris, France
| | - Cristina Belizna
- CHU Angers, Service de Médecine interne, Angers, France.,Univ Angers, INSERM, CNRS, MitoVasc, Angers, France
| | - Yves Delneste
- Univ Angers, CHU Angers, INSERM, CRCINA, Angers, France.,CHU Angers, Service d'Immunologie et Allergologie, Angers, France
| | - Jean-François Augusto
- CHU Angers, Service de Néphrologie-Dialyse-Transplantation, Angers, France.,Univ Angers, CHU Angers, INSERM, CRCINA, Angers, France
| | - Pascale Jeannin
- Univ Angers, CHU Angers, INSERM, CRCINA, Angers, France.,CHU Angers, Service d'Immunologie et Allergologie, Angers, France
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Paiva IA, Badolato-Corrêa J, Familiar-Macedo D, de-Oliveira-Pinto LM. Th17 Cells in Viral Infections-Friend or Foe? Cells 2021; 10:cells10051159. [PMID: 34064728 PMCID: PMC8151546 DOI: 10.3390/cells10051159] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Revised: 04/20/2021] [Accepted: 04/28/2021] [Indexed: 12/12/2022] Open
Abstract
Th17 cells are recognized as indispensable in inducing protective immunity against bacteria and fungi, as they promote the integrity of mucosal epithelial barriers. It is believed that Th17 cells also play a central role in the induction of autoimmune diseases. Recent advances have evaluated Th17 effector functions during viral infections, including their critical role in the production and induction of pro-inflammatory cytokines and in the recruitment and activation of other immune cells. Thus, Th17 is involved in the induction both of pathogenicity and immunoprotective mechanisms seen in the host's immune response against viruses. However, certain Th17 cells can also modulate immune responses, since they can secrete immunosuppressive factors, such as IL-10; these cells are called non-pathogenic Th17 cells. Here, we present a brief review of Th17 cells and highlight their involvement in some virus infections. We cover these notions by highlighting the role of Th17 cells in regulating the protective and pathogenic immune response in the context of viral infections. In addition, we will be describing myocarditis and multiple sclerosis as examples of immune diseases triggered by viral infections, in which we will discuss further the roles of Th17 cells in the induction of tissue damage.
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45
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Tolnay M. Lymphocytes sense antibodies through human FCRL proteins: Emerging roles in mucosal immunity. J Leukoc Biol 2021; 111:477-487. [PMID: 33884658 DOI: 10.1002/jlb.4ru0221-102rr] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2021] [Revised: 04/08/2021] [Accepted: 04/09/2021] [Indexed: 12/23/2022] Open
Abstract
Members of the Fc receptor-like (FCRL) family modulate B and T cell responses, yet their functional roles remain enigmatic. Nevertheless, FCRL3 promoter polymorphism that alters gene expression has been associated with autoimmune disease risk, indicating physiologic importance. Providing essential functional context, human FCRL3, FCRL4, and FCRL5 have recently been identified as secretory IgA (SIgA), dimeric IgA, and IgG receptors, respectively, revealing novel ways lymphocytes can interact with antibodies. FCRL3 and FCRL4 are able to distinguish the mucosal and systemic origin of IgA-containing immune complexes, respectively, with clear implications in guiding mucosal responses. SIgA can signal mucosal breach through FCRL3, driving the functional plasticity of regulatory T cells toward inflammatory to help control invading pathogens. Conversely, recognition of dimeric IgA by FCRL4 on memory B cells located in mucosa-associated lymphoid tissues could promote tolerance to commensals. Memory B cells that accumulate under conditions of chronic antigen presence frequently express FCRL4 and FCRL5, and antibody ligands could provide functional feedback to the cells. FCRL5 apparently recognizes the age of the IgG molecule, using deamidation as a molecular clock, conceivably playing regulatory roles in chronic antibody responses. A framework of FCRL3, FCRL4, and FCRL5 operating as sensors of antibodies in immune complexes is proposed. Sensing the spatial origin and age of immune complexes can shape lymphocyte functional attributes and inform their participation in mucosal immune responses. The potential contributions of FCRL3 and SIgA to the pathogenesis of autoimmune diseases are discussed.
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Affiliation(s)
- Mate Tolnay
- Office of Biotechnology Products, Center for Drug Evaluation and Research, US Food and Drug Administration, Silver Spring, Maryland, USA
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46
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Ciarlo E, Heinonen T, Théroude C, Asgari F, Le Roy D, Netea MG, Roger T. Trained Immunity Confers Broad-Spectrum Protection Against Bacterial Infections. J Infect Dis 2021; 222:1869-1881. [PMID: 31889191 PMCID: PMC7653089 DOI: 10.1093/infdis/jiz692] [Citation(s) in RCA: 76] [Impact Index Per Article: 25.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2019] [Accepted: 12/30/2019] [Indexed: 12/29/2022] Open
Abstract
Background The innate immune system recalls a challenge to adapt to a secondary challenge, a phenomenon called trained immunity. Training involves cellular metabolic, epigenetic and functional reprogramming, but how broadly trained immunity protects from infections is unknown. For the first time, we addressed whether trained immunity provides protection in a large panel of preclinical models of infections. Methods Mice were trained and subjected to systemic infections, peritonitis, enteritis, and pneumonia induced by Staphylococcus aureus, Listeria monocytogenes, Escherichia coli, Citrobacter rodentium, and Pseudomonas aeruginosa. Bacteria, cytokines, leukocytes, and hematopoietic precursors were quantified in blood, bone marrow, and organs. The role of monocytes/macrophages, granulocytes, and interleukin 1 signaling was investigated using depletion or blocking approaches. Results Induction of trained immunity protected mice in all preclinical models, including when training and infection were initiated in distant organs. Trained immunity increased bone marrow hematopoietic progenitors, blood Ly6Chigh inflammatory monocytes and granulocytes, and sustained blood antimicrobial responses. Monocytes/macrophages and interleukin 1 signaling were required to protect trained mice from listeriosis. Trained mice were efficiently protected from peritonitis and listeriosis for up to 5 weeks. Conclusions Trained immunity confers broad-spectrum protection against lethal bacterial infections. These observations support the development of trained immunity-based strategies to improve host defenses.
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Affiliation(s)
- Eleonora Ciarlo
- Infectious Diseases Service, Department of Medicine, Lausanne University Hospital and University of Lausanne, Epalinges, Switzerland
| | - Tytti Heinonen
- Infectious Diseases Service, Department of Medicine, Lausanne University Hospital and University of Lausanne, Epalinges, Switzerland
| | - Charlotte Théroude
- Infectious Diseases Service, Department of Medicine, Lausanne University Hospital and University of Lausanne, Epalinges, Switzerland
| | - Fatemeh Asgari
- Department of Biomedical Sciences, Humanitas University, Milan, Italy
| | - Didier Le Roy
- Infectious Diseases Service, Department of Medicine, Lausanne University Hospital and University of Lausanne, Epalinges, Switzerland
| | - Mihai G Netea
- Radboud Center for Infectious Diseases, and Department of Internal Medicine, Radboud University Medical Center, Nijmegen, The Netherlands.,Department for Genomics & Immunoregulation, Life and Medical Sciences Institute, University of Bonn, Bonn, Germany
| | - Thierry Roger
- Infectious Diseases Service, Department of Medicine, Lausanne University Hospital and University of Lausanne, Epalinges, Switzerland
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Schinocca C, Rizzo C, Fasano S, Grasso G, La Barbera L, Ciccia F, Guggino G. Role of the IL-23/IL-17 Pathway in Rheumatic Diseases: An Overview. Front Immunol 2021; 12:637829. [PMID: 33692806 PMCID: PMC7937623 DOI: 10.3389/fimmu.2021.637829] [Citation(s) in RCA: 134] [Impact Index Per Article: 44.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2020] [Accepted: 01/25/2021] [Indexed: 12/14/2022] Open
Abstract
Interleukin-23 (IL-23) is a pro-inflammatory cytokine composed of two subunits, IL-23A (p19) and IL-12/23B (p40), the latter shared with Interleukin-12 (IL-12). IL-23 is mainly produced by macrophages and dendritic cells, in response to exogenous or endogenous signals, and drives the differentiation and activation of T helper 17 (Th17) cells with subsequent production of IL-17A, IL-17F, IL-6, IL-22, and tumor necrosis factor α (TNF-α). Although IL-23 plays a pivotal role in the protective immune response to bacterial and fungal infections, its dysregulation has been shown to exacerbate chronic immune-mediated inflammation. Well-established experimental data support the concept that IL-23/IL-17 axis activation contributes to the development of several inflammatory diseases, such as PsA, Psoriasis, Psoriatic Arthritis; AS, Ankylosing Spondylitis; IBD, Inflammatory Bowel Disease; RA, Rheumatoid Arthritis; SS, Sjogren Syndrome; MS, Multiple Sclerosis. As a result, emerging clinical studies have focused on the blockade of this pathogenic axis as a promising therapeutic target in several autoimmune disorders; nevertheless, a greater understanding of its contribution still requires further investigation. This review aims to elucidate the most recent studies and literature data on the pathogenetic role of IL-23 and Th17 cells in inflammatory rheumatic diseases.
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Affiliation(s)
- Claudia Schinocca
- Rheumatology Section, Department of Health Promotion, Mother and Child Care, Internal Medicine and Medical Specialties, University Hospital "P. Giaccone", Palermo, Italy
| | - Chiara Rizzo
- Rheumatology Section, Department of Health Promotion, Mother and Child Care, Internal Medicine and Medical Specialties, University Hospital "P. Giaccone", Palermo, Italy
| | - Serena Fasano
- Department of Precision Medicine, University of Campania "Luigi Vanvitelli", Naples, Italy
| | - Giulia Grasso
- Rheumatology Section, Department of Health Promotion, Mother and Child Care, Internal Medicine and Medical Specialties, University Hospital "P. Giaccone", Palermo, Italy
| | - Lidia La Barbera
- Rheumatology Section, Department of Health Promotion, Mother and Child Care, Internal Medicine and Medical Specialties, University Hospital "P. Giaccone", Palermo, Italy
| | - Francesco Ciccia
- Department of Precision Medicine, University of Campania "Luigi Vanvitelli", Naples, Italy
| | - Giuliana Guggino
- Rheumatology Section, Department of Health Promotion, Mother and Child Care, Internal Medicine and Medical Specialties, University Hospital "P. Giaccone", Palermo, Italy
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Xiao X, Zhu W, Zhang Y, Liao Z, Wu C, Yang C, Zhang Y, Xiao S, Su J. Broad-Spectrum Robust Direct Bactericidal Activity of Fish IFNφ1 Reveals an Antimicrobial Peptide-like Function for Type I IFNs in Vertebrates. THE JOURNAL OF IMMUNOLOGY 2021; 206:1337-1347. [PMID: 33568398 DOI: 10.4049/jimmunol.2000680] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2020] [Accepted: 01/11/2021] [Indexed: 12/13/2022]
Abstract
Type I IFNs (IFN-Is) play pivotal roles in host defense against viral infections but remain enigmatic against bacterial pathogens. In this study, we recombinantly expressed and purified intact grass carp (Ctenopharyngodon idella) IFNφ1 (gcIFNφ1), a teleost IFN-I. gcIFNφ1 widely powerfully directly kills both Gram-negative and Gram-positive bacteria in a dose-dependent manner. gcIFNφ1 binds to LPS or peptidoglycan and provokes bacterial membrane depolarization and disruption, resulting in bacterial death. Furthermore, gcIFNφ1 can efficiently protect zebrafish against Aeromonas hydrophila infection and significantly reduce the bacterial loads in tissues by an infection model. In addition, we wonder whether antibacterial IFN-I members exist in other vertebrates. The amino acid compositions of representative IFN-Is with strong positive charges from Pisces, Amphibia, reptiles, Aves, and Mammalia demonstrate high similarities with those of 2237 reported cationic antimicrobial peptides in antimicrobial peptide database. Recombinant intact representative IFN-I members from the nonmammalian sect exhibit potent broad-spectrum robust bactericidal activity through bacterial membrane depolarization; in contrast, the bactericidal activity is very weak from mammalian IFN-Is. The findings display a broad-spectrum potent direct antimicrobial function for IFN-Is, to our knowledge previously unknown. The results highlight that IFN-Is are important and robust in host defense against bacterial pathogens, and unify direct antibacterial and indirect antiviral bifunction in nonmammalian jawed vertebrates.
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Affiliation(s)
- Xun Xiao
- Department of Aquatic Animal Medicine, College of Fisheries, Huazhong Agricultural University, Wuhan 430070, China.,Laboratory for Marine Biology and Biotechnology, Pilot National Laboratory for Marine Science and Technology, Qingdao 266237, China; and.,College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, China
| | - Wentao Zhu
- Department of Aquatic Animal Medicine, College of Fisheries, Huazhong Agricultural University, Wuhan 430070, China
| | - Yanqi Zhang
- Department of Aquatic Animal Medicine, College of Fisheries, Huazhong Agricultural University, Wuhan 430070, China
| | - Zhiwei Liao
- Department of Aquatic Animal Medicine, College of Fisheries, Huazhong Agricultural University, Wuhan 430070, China
| | - Changsong Wu
- Department of Aquatic Animal Medicine, College of Fisheries, Huazhong Agricultural University, Wuhan 430070, China
| | - Chunrong Yang
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, China
| | - Yongan Zhang
- Department of Aquatic Animal Medicine, College of Fisheries, Huazhong Agricultural University, Wuhan 430070, China
| | - Shaobo Xiao
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, China
| | - Jianguo Su
- Department of Aquatic Animal Medicine, College of Fisheries, Huazhong Agricultural University, Wuhan 430070, China; .,Laboratory for Marine Biology and Biotechnology, Pilot National Laboratory for Marine Science and Technology, Qingdao 266237, China; and
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49
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Lee EY, Chan LC, Wang H, Lieng J, Hung M, Srinivasan Y, Wang J, Waschek JA, Ferguson AL, Lee KF, Yount NY, Yeaman MR, Wong GCL. PACAP is a pathogen-inducible resident antimicrobial neuropeptide affording rapid and contextual molecular host defense of the brain. Proc Natl Acad Sci U S A 2021; 118:e1917623117. [PMID: 33372152 PMCID: PMC7817161 DOI: 10.1073/pnas.1917623117] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
Defense of the central nervous system (CNS) against infection must be accomplished without generation of potentially injurious immune cell-mediated or off-target inflammation which could impair key functions. As the CNS is an immune-privileged compartment, inducible innate defense mechanisms endogenous to the CNS likely play an essential role in this regard. Pituitary adenylate cyclase-activating polypeptide (PACAP) is a neuropeptide known to regulate neurodevelopment, emotion, and certain stress responses. While PACAP is known to interact with the immune system, its significance in direct defense of brain or other tissues is not established. Here, we show that our machine-learning classifier can screen for immune activity in neuropeptides, and correctly identified PACAP as an antimicrobial neuropeptide in agreement with previous experimental work. Furthermore, synchrotron X-ray scattering, antimicrobial assays, and mechanistic fingerprinting provided precise insights into how PACAP exerts antimicrobial activities vs. pathogens via multiple and synergistic mechanisms, including dysregulation of membrane integrity and energetics and activation of cell death pathways. Importantly, resident PACAP is selectively induced up to 50-fold in the brain in mouse models of Staphylococcus aureus or Candida albicans infection in vivo, without inducing immune cell infiltration. We show differential PACAP induction even in various tissues outside the CNS, and how these observed patterns of induction are consistent with the antimicrobial efficacy of PACAP measured in conditions simulating specific physiologic contexts of those tissues. Phylogenetic analysis of PACAP revealed close conservation of predicted antimicrobial properties spanning primitive invertebrates to modern mammals. Together, these findings substantiate our hypothesis that PACAP is an ancient neuro-endocrine-immune effector that defends the CNS against infection while minimizing potentially injurious neuroinflammation.
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Affiliation(s)
- Ernest Y Lee
- Department of Bioengineering, University of California, Los Angeles, CA 90095
- UCLA-Caltech Medical Scientist Training Program, David Geffen School of Medicine at UCLA, Los Angeles, CA 90095
| | - Liana C Chan
- Lundquist Institute for Biomedical Innovation, Harbor-UCLA Medical Center, Torrance, CA 90509
- Division of Molecular Medicine, Los Angeles County, Harbor-UCLA Medical Center, Torrance, CA 90509
- Division of Infectious Diseases, Los Angeles County, Harbor-UCLA Medical Center, Torrance, CA 90509
| | - Huiyuan Wang
- Lundquist Institute for Biomedical Innovation, Harbor-UCLA Medical Center, Torrance, CA 90509
- Division of Molecular Medicine, Los Angeles County, Harbor-UCLA Medical Center, Torrance, CA 90509
| | - Juelline Lieng
- Department of Bioengineering, University of California, Los Angeles, CA 90095
| | - Mandy Hung
- Department of Bioengineering, University of California, Los Angeles, CA 90095
| | - Yashes Srinivasan
- Department of Bioengineering, University of California, Los Angeles, CA 90095
| | - Jennifer Wang
- Department of Bioengineering, University of California, Los Angeles, CA 90095
| | - James A Waschek
- Semel Institute for Neuroscience and Human Behavior, Intellectual Development and Disabilities Research Center, David Geffen School of Medicine, University of California, Los Angeles, CA 90095
| | - Andrew L Ferguson
- Pritzker School of Molecular Engineering, University of Chicago, Chicago, IL 60637
| | - Kuo-Fen Lee
- Peptide Biology Laboratories, Salk Institute for Biological Studies, La Jolla, CA 92037
| | - Nannette Y Yount
- Lundquist Institute for Biomedical Innovation, Harbor-UCLA Medical Center, Torrance, CA 90509
- Division of Molecular Medicine, Los Angeles County, Harbor-UCLA Medical Center, Torrance, CA 90509
| | - Michael R Yeaman
- Division of Molecular Medicine, Los Angeles County, Harbor-UCLA Medical Center, Torrance, CA 90509;
- Division of Infectious Diseases, Los Angeles County, Harbor-UCLA Medical Center, Torrance, CA 90509
- Semel Institute for Neuroscience and Human Behavior, Intellectual Development and Disabilities Research Center, David Geffen School of Medicine, University of California, Los Angeles, CA 90095
| | - Gerard C L Wong
- Department of Bioengineering, University of California, Los Angeles, CA 90095;
- Department of Chemistry and Biochemistry, University of California, Los Angeles, CA 90095
- California NanoSystems Institute, University of California, Los Angeles, CA 90095
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50
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Emerging Role for MAIT Cells in Control of Antimicrobial Resistance. Trends Microbiol 2020; 29:504-516. [PMID: 33353796 DOI: 10.1016/j.tim.2020.11.008] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Revised: 11/24/2020] [Accepted: 11/25/2020] [Indexed: 12/14/2022]
Abstract
Antimicrobial resistance is a serious threat to global public health as antibiotics are losing effectiveness due to rapid development of resistance. The human immune system facilitates control and clearance of resistant bacterial populations during the course of antimicrobial therapy. Here we review current knowledge of mucosa-associated invariant T (MAIT) cells, an arm of the immune system on the border between innate and adaptive, and their critical place in human antibacterial immunity. We propose that MAIT cells play important roles against antimicrobial-resistant infections through their capacity to directly clear multidrug-resistant bacteria and overcome mechanisms of antimicrobial resistance. Finally, we discuss outstanding questions pertinent to the possible advancement of host-directed therapy as an alternative intervention strategy for antimicrobial-resistant bacterial infections.
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