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Toth KA, Schmitt EG, Kolicheski A, Greenberg ZJ, Levendosky E, Saucier N, Trammel K, Oikonomou V, Lionakis MS, Klechevsky E, Kim BS, Schuettpelz LG, Saligrama N, Cooper MA. A human STAT3 gain-of-function variant drives local Th17 dysregulation and skin inflammation in mice. J Exp Med 2024; 221:e20232091. [PMID: 38861030 PMCID: PMC11167377 DOI: 10.1084/jem.20232091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Revised: 04/29/2024] [Accepted: 05/21/2024] [Indexed: 06/12/2024] Open
Abstract
Germline gain-of-function (GOF) variants in STAT3 cause an inborn error of immunity associated with early-onset poly-autoimmunity and immune dysregulation. To study tissue-specific immune dysregulation, we used a mouse model carrying a missense variant (p.G421R) that causes human disease. We observed spontaneous and imiquimod (IMQ)-induced skin inflammation associated with cell-intrinsic local Th17 responses in STAT3 GOF mice. CD4+ T cells were sufficient to drive skin inflammation and showed increased Il22 expression in expanded clones. Certain aspects of disease, including increased epidermal thickness, also required the presence of STAT3 GOF in epithelial cells. Treatment with a JAK inhibitor improved skin disease without affecting local Th17 recruitment and cytokine production. These findings collectively support the involvement of Th17 responses in the development of organ-specific immune dysregulation in STAT3 GOF and suggest that the presence of STAT3 GOF in tissues is important for disease and can be targeted with JAK inhibition.
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Affiliation(s)
- Kelsey A. Toth
- Department of Pediatrics, Division of Rheumatology, Washington University School of Medicine, St. Louis, MO, USA
| | - Erica G. Schmitt
- Department of Pediatrics, Division of Rheumatology, Washington University School of Medicine, St. Louis, MO, USA
| | - Ana Kolicheski
- Department of Pediatrics, Division of Rheumatology, Washington University School of Medicine, St. Louis, MO, USA
| | - Zev J. Greenberg
- Department of Pediatrics, Division of Hematology and Oncology, Washington University School of Medicine, St. Louis, MO, USA
| | - Elizabeth Levendosky
- Department of Neurology, Washington University School of Medicine, St. Louis, MO, USA
| | - Nermina Saucier
- Department of Pediatrics, Division of Rheumatology, Washington University School of Medicine, St. Louis, MO, USA
| | - Kelsey Trammel
- Department of Pediatrics, Division of Rheumatology, Washington University School of Medicine, St. Louis, MO, USA
| | - Vasileios Oikonomou
- Fungal Pathogenesis Section, Laboratory of Clinical Immunology and Microbiology, National Institute of Allergy and Infectious Diseases, Bethesda, MD, USA
| | - Michail S. Lionakis
- Fungal Pathogenesis Section, Laboratory of Clinical Immunology and Microbiology, National Institute of Allergy and Infectious Diseases, Bethesda, MD, USA
| | - Eynav Klechevsky
- Department of Pathology and Immunology, Division of Immunobiology, Washington University School of Medicine, St. Louis, MO, USA
| | - Brian S. Kim
- Kimberly and Eric J. Waldman Department of Dermatology, Icahn School of Medicine at Mount Sinai, Precision Immunology Institute, Friedman Brain Institute, Mark Lebwohl Center for Neuroinflammation and Sensation, New York, NY, USA
- Allen Discovery Center for Neuroimmune Interactions, New York, NY, USA
| | - Laura G. Schuettpelz
- Department of Pediatrics, Division of Hematology and Oncology, Washington University School of Medicine, St. Louis, MO, USA
| | - Naresha Saligrama
- Department of Neurology, Washington University School of Medicine, St. Louis, MO, USA
- Department of Pathology and Immunology, Division of Immunobiology, Washington University School of Medicine, St. Louis, MO, USA
- Bursky Center for Human Immunology & Immunotherapy, Washington University School of Medicine, St. Louis, MO, USA
| | - Megan A. Cooper
- Department of Pediatrics, Division of Rheumatology, Washington University School of Medicine, St. Louis, MO, USA
- Department of Pathology and Immunology, Division of Immunobiology, Washington University School of Medicine, St. Louis, MO, USA
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2
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Yang H, Zhou C, Nie S, Xu S, Li M, Yu Q, Wei Y, Wang X. Anti-ulcerative colitis effect of rotating magnetic field on DSS-induced mice by modulating colonic inflammatory deterioration. Mol Immunol 2024; 172:23-37. [PMID: 38865801 DOI: 10.1016/j.molimm.2024.05.011] [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: 03/25/2024] [Revised: 05/15/2024] [Accepted: 05/29/2024] [Indexed: 06/14/2024]
Abstract
Ulcerative colitis (UC) is a prevalent inflammatory disorder that emerges in the colon and rectum, exhibiting a rising global prevalence and seriously impacting the physical and mental health of patients. Significant challenges remain in UC treatment, highlighting the need for safe and effective long-term therapeutic approaches. Heralded as a promising physical treatment, the rotating magnetic field (RMF) demonstrates safety, stability, manageability, and efficiency. This study delves into RMF's potential in mitigating DSS-induced UC in mice, assessing disease activity indices (DAI) and pathological alterations such as daily body weight, fecal occult blood, colon length, and morphological changes. Besides, several indexes have been detected, including serum concentrations of pro-inflammatory cytokines (IL6, IL-17A, TNF-α, IFN-γ) and anti-inflammatory cytokines (TGF-β, IL-4, IL-10), the ratio of splenic CD3+, CD4+, and CD8+ T cells, the rate of apoptotic colonic cells, the expression of colonic inflammatory and tight junction-associated proteins. The results showed that RMF had beneficial effects on the decrease of intestinal permeability, the restoration of tight junctions, and the mitigation of mitochondrial respiratory complexes (MRCs) by attenuating inflammatory dysfunction in colons of DSS-induced UC model of mice. In conclusion, this study demonstrates that RMF attenuates colonic inflammation, enhances colonic tight junction, and alleviates MRCs impairment by regulating the equilibrium of pro-inflammatory and anti-inflammatory cytokines in UC mice, suggesting the potential application of RMF in the clinical treatment of UC.
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Affiliation(s)
- Hua Yang
- Department of Physiology, School of Basic Medical Sciences, Shenzhen University Medical School, Shenzhen University, Shenzhen 518055, China; International Cancer Center, Shenzhen University Medical School, Shenzhen University, Shenzhen, Guangdong 518055, China
| | - Cai Zhou
- Department of Physiology, School of Basic Medical Sciences, Shenzhen University Medical School, Shenzhen University, Shenzhen 518055, China
| | - Shenglan Nie
- Department of Physiology, School of Basic Medical Sciences, Shenzhen University Medical School, Shenzhen University, Shenzhen 518055, China
| | - Shuling Xu
- School of Pharmacy, School of Basic Medical Sciences, Shenzhen University Medical School, Shenzhen University, Shenzhen 518055, China
| | - Mengqing Li
- Department of Physiology, School of Basic Medical Sciences, Shenzhen University Medical School, Shenzhen University, Shenzhen 518055, China
| | - Qinyao Yu
- School of Pharmacy, School of Basic Medical Sciences, Shenzhen University Medical School, Shenzhen University, Shenzhen 518055, China
| | - Yunpeng Wei
- Department of Physiology, School of Basic Medical Sciences, Shenzhen University Medical School, Shenzhen University, Shenzhen 518055, China.
| | - Xiaomei Wang
- Department of Physiology, School of Basic Medical Sciences, Shenzhen University Medical School, Shenzhen University, Shenzhen 518055, China; International Cancer Center, Shenzhen University Medical School, Shenzhen University, Shenzhen, Guangdong 518055, China; School of Pharmacy, School of Basic Medical Sciences, Shenzhen University Medical School, Shenzhen University, Shenzhen 518055, China.
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3
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Kommoju V, Mariaselvam CM, Bulusu SN, Michael BNR, Kavadichanda C, Thabah MM, Negi VS. Rheumatoid arthritis autologous synovial fluid affects the plasticity and function of peripheral and induced T regulatory cells in vitro. Immunol Lett 2024; 267:106859. [PMID: 38670465 DOI: 10.1016/j.imlet.2024.106859] [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: 08/24/2023] [Revised: 03/01/2024] [Accepted: 04/23/2024] [Indexed: 04/28/2024]
Abstract
The synovial fluid (SF) microenvironment in rheumatoid arthritis (RA) may alter the stability and function of Tregs. In the present study, we assessed cytokine levels and percentage of Tregs, Tregs expressing CXCR3 (Th1-like Treg), CCR6 (Th17-like Treg) in RA peripheral blood (PB) and RA-SF using fluorescence cytometry. Effect of autologous SF on plasticity and function of RA-PB Tregs (pTregs; CD4+CD25hiCD127Lo/-) and induced vimentin-pulsed Tregs (iTregsVIM) was assessed in vitro. Cytokines and percentage of Th1-like and Th17-like Tregs were higher in RA-PB than OA-PB; higher in RA-SF than osteoarthritis (OA)-SF. Compared to OA-SF exposed OA-pTregs, RA-SF exposed RA-pTregs showed higher percentage of Th1-like (11% vs 20%) and Th17-like (16% vs 36%) Tregs; higher T-bet (p = 0.0001), RORγ (p = 0.0001) and lower FOXP3 (p = 0.0001) gene expression; and diminished percentage suppression of autologous T effector cells (36% vs 74%). RA-SF exposed iTregsVIM showed increased percentage of Th1-like and Th17-like Tregs compared to iTregsVIM exposed to AB serum (8% vs 0.1%; 21% vs 0.1%). IL-2, Tocilizumab and 5-azacytidine reduced the conversion of iTregsVIM (8% vs 2.4%; 21% vs 6.9%), when used in combination. To conclude, microenvironment in the RA synovial fluid is possibly responsible for conversion of pTregs into Th-like Tregs and their functional loss. A blockade of cytokine receptors and methyl transferases could inhibit Tregs conversion, providing clinical relevance for future Tregs targeting therapies.
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Affiliation(s)
- Vallayyachari Kommoju
- Department of Clinical Immunology, Jawaharlal Institute of Postgraduate Medical Education and Research (JIPMER), Pondicherry 605 006, India
| | - Christina Mary Mariaselvam
- Department of Clinical Immunology, Jawaharlal Institute of Postgraduate Medical Education and Research (JIPMER), Pondicherry 605 006, India
| | - Sree Nethra Bulusu
- Department of Clinical Immunology, Jawaharlal Institute of Postgraduate Medical Education and Research (JIPMER), Pondicherry 605 006, India
| | - Benita Nancy Reni Michael
- Department of Clinical Immunology, Jawaharlal Institute of Postgraduate Medical Education and Research (JIPMER), Pondicherry 605 006, India
| | - Chengappa Kavadichanda
- Department of Clinical Immunology, Jawaharlal Institute of Postgraduate Medical Education and Research (JIPMER), Pondicherry 605 006, India
| | - Molly Mary Thabah
- Department of Clinical Immunology, Jawaharlal Institute of Postgraduate Medical Education and Research (JIPMER), Pondicherry 605 006, India
| | - Vir Singh Negi
- Department of Clinical Immunology, Jawaharlal Institute of Postgraduate Medical Education and Research (JIPMER), Pondicherry 605 006, India; All India Institute of Medical Sciences (AIIMS), Bilaspur, Himachal Pradesh 174001, India.
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Solà-Ginés M, Miró L, Bellver-Sanchis A, Griñán-Ferré C, Pallàs M, Pérez-Bosque A, Moretó M, Pont L, Benavente F, Barbosa J, Rodríguez C, Polo J. Nutritional, molecular, and functional properties of a novel enzymatically hydrolyzed porcine plasma product. PLoS One 2024; 19:e0301504. [PMID: 38728303 PMCID: PMC11086891 DOI: 10.1371/journal.pone.0301504] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2023] [Accepted: 03/18/2024] [Indexed: 05/12/2024] Open
Abstract
In the present study, an enzymatically hydrolyzed porcine plasma (EHPP) was nutritionally and molecularly characterized. EHPP molecular characterization showed, in contrast to spray-dried plasma (SDP), many peptides with relative molecular masses (Mr) below 8,000, constituting 73% of the protein relative abundance. IIAPPER, a well-known bioactive peptide with anti-inflammatory and antioxidant properties, was identified. In vivo functionality of EHPP was tested in C. elegans and two different mouse models of intestinal inflammation. In C. elegans subjected to lipopolysaccharide exposure, EHPP displayed a substantial anti-inflammatory effect, enhancing survival and motility by 40% and 21.5%, respectively. Similarly, in mice challenged with Staphylococcus aureus enterotoxin B or Escherichia coli O42, EHPP and SDP supplementation (8%) increased body weight and average daily gain while reducing the percentage of regulatory Th lymphocytes. Furthermore, both products mitigated the increase of pro-inflammatory cytokines expression associated with these challenged mouse models. In contrast, some significant differences were observed in markers such as Il-6 and Tnf-α, suggesting that the products may present different action mechanisms. In conclusion, EHPP demonstrated similar beneficial health effects to SDP, potentially attributable to the immunomodulatory and antioxidant activity of its characteristic low Mr bioactive peptides.
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Affiliation(s)
| | - Lluïsa Miró
- APC Europe S.L.U., Granollers, Spain
- Departament de Bioquímica i Fisiologia (Secció de Fisiologia), Facultat de Farmàcia i Ciències de l’Alimentació and Institut de Nutrició i Seguretat Alimentària, Universitat de Barcelona (INSA·UB), Barcelona, Spain
| | - Aina Bellver-Sanchis
- Departament de Farmacologia, Toxicologia i Química Terapèutica (Secció de Farmacologia) Facultat de Farmàcia i Ciències de l’Alimentació and Institut de Neurociències (CIBERNED), Universitat de Barcelona, Barcelona, Spain
| | - Christian Griñán-Ferré
- Departament de Farmacologia, Toxicologia i Química Terapèutica (Secció de Farmacologia) Facultat de Farmàcia i Ciències de l’Alimentació and Institut de Neurociències (CIBERNED), Universitat de Barcelona, Barcelona, Spain
| | - Mercè Pallàs
- Departament de Farmacologia, Toxicologia i Química Terapèutica (Secció de Farmacologia) Facultat de Farmàcia i Ciències de l’Alimentació and Institut de Neurociències (CIBERNED), Universitat de Barcelona, Barcelona, Spain
| | - Anna Pérez-Bosque
- Departament de Bioquímica i Fisiologia (Secció de Fisiologia), Facultat de Farmàcia i Ciències de l’Alimentació and Institut de Nutrició i Seguretat Alimentària, Universitat de Barcelona (INSA·UB), Barcelona, Spain
| | - Miquel Moretó
- Departament de Bioquímica i Fisiologia (Secció de Fisiologia), Facultat de Farmàcia i Ciències de l’Alimentació and Institut de Nutrició i Seguretat Alimentària, Universitat de Barcelona (INSA·UB), Barcelona, Spain
| | - Laura Pont
- Department of Chemical Engineering and Analytical Chemistry, Institute for Research on Nutrition and Food Safety (INSA·UB), University of Barcelona, Barcelona, Spain
- Serra Húnter Programe, Generalitat de Catalunya, Barcelona, Spain
| | | | - José Barbosa
- Serra Húnter Programe, Generalitat de Catalunya, Barcelona, Spain
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Agulla B, Villaescusa A, Sainz Á, Díaz‐Regañón D, Rodríguez‐Franco F, Calleja‐Bueno L, Olmeda P, García‐Sancho M. Peripheral and intestinal T lymphocyte subsets in dogs with chronic inflammatory enteropathy. J Vet Intern Med 2024; 38:1437-1448. [PMID: 38472110 PMCID: PMC11099799 DOI: 10.1111/jvim.17036] [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: 09/13/2023] [Accepted: 02/26/2024] [Indexed: 03/14/2024] Open
Abstract
BACKGROUND Dysregulated T lymphocyte response is thought to play a key role in chronic intestinal inflammation (CIE). OBJECTIVES To evaluate the presence of changes in peripheral and intestinal T lymphocyte subsets and to describe potential immune and inflammatory biomarkers in dogs with CIE. ANIMALS Sixteen healthy dogs and 26 dogs were diagnosed with CIE. METHODS Prospective case-control study evaluating peripheral and intestinal T lymphocytes using flow cytometry and inflammatory markers obtained from complete blood cell counts. RESULTS Dogs with CIE had higher peripheral activated T helper (Th) lymphocytes (87/μL [18-273] CIE, 44/μL [16-162] healthy control (HC, P = .013) and regulatory T cells (Treg; 108/μL [2-257] CIE, 34/μL [1-114] HC, P = .004). In the intestinal epithelium, CIE dogs presented lower percentages of Th (4.55% [1.75-18.67] CIE, 8.77% [3.79-25.03] HC, P = .002), activated Th cells (0.16% [0.02-0.83] CIE, 0.33% [0.05-0.57] HC, P = .03) and CD4/CD8 ratio (0.08 [0.02-0.39] CIE, 0.21 [0.07-0.85] HC, P = .003). Conversely, higher percentage of activated T cytotoxic cells (20.24% [3.12-77.12] CIE, 12.32% [1.21-39.22] HC, P = .04) and interferon-gamma (IFN-γ) producing T lymphocytes (7.36% [0.63-55.83] CIE, 1.44% [0.00-10.56] HC, P = .01) within the epithelium was observed. In the lamina propria the percentage of Treg lymphocytes was higher (6.02% [1.00-21.48] CIE, 3.52% [0.18-10.52] HC, P = .02). CONCLUSIONS AND CLINICAL IMPORTANCE Systemic and intestinal immune alterations occur in dogs with CIE suggesting that blood IFN-γ producing T lymphocytes and the systemic immune-inflamation index (SII) could potentially serve as biomarkers for the disease.
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Affiliation(s)
- Beatriz Agulla
- Department Medicina i Cirurgia Animals, Facultat de VeterinàriaUniversitat Autònoma de BarcelonaBarcelonaSpain
| | - Alejandra Villaescusa
- Department of Animal Medicine and Surgery, College of Veterinary MedicineComplutense University of MadridMadridSpain
| | - Ángel Sainz
- Department of Animal Medicine and Surgery, College of Veterinary MedicineComplutense University of MadridMadridSpain
| | - David Díaz‐Regañón
- Department of Animal Medicine and Surgery, College of Veterinary MedicineComplutense University of MadridMadridSpain
| | - Fernando Rodríguez‐Franco
- Department of Animal Medicine and Surgery, College of Veterinary MedicineComplutense University of MadridMadridSpain
| | - Lydia Calleja‐Bueno
- Facultad de VeterinariaUniversidad Alfonso X El Sabio (UAX), Avenida de la Universidad 1MadridSpain
| | - Patricia Olmeda
- Department of Animal Medicine and Surgery, College of Veterinary MedicineComplutense University of MadridMadridSpain
| | - Mercedes García‐Sancho
- Department of Animal Medicine and Surgery, College of Veterinary MedicineComplutense University of MadridMadridSpain
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Rivas-Arancibia S, Rodríguez-Martínez E, Valdés-Fuentes M, Miranda-Martínez A, Hernández-Orozco E, Reséndiz-Ramos C. Changes in SOD and NF-κB Levels in Substantia Nigra and the Intestine through Oxidative Stress Effects in a Wistar Rat Model of Ozone Pollution. Antioxidants (Basel) 2024; 13:536. [PMID: 38790641 PMCID: PMC11117973 DOI: 10.3390/antiox13050536] [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: 03/19/2024] [Revised: 04/19/2024] [Accepted: 04/23/2024] [Indexed: 05/26/2024] Open
Abstract
This work aimed to elucidate how O3 pollution causes a loss of regulation in the immune response in both the brain and the intestine. In this work, we studied the effect of exposing rats to low doses of O3 based on the association between the antioxidant response of superoxide dismutase (SOD) levels and the nuclear factor kappa light chains of activated B cells (NFκB) as markers of inflammation. Method: Seventy-two Wistar rats were used, divided into six groups that received the following treatments: Control and 7, 15, 30, 60, and 90 days of O3. After treatment, tissues were extracted and processed using Western blotting, biochemical, and immunohistochemical techniques. The results indicated an increase in 4-hydroxynonenal (4HNE) and Cu/Zn-SOD and a decrease in Mn-SOD, and SOD activity in the substantia nigra, jejunum, and colon decreased. Furthermore, the translocation of NFκB to the nucleus increased in the different organs studied. In conclusion, repeated exposure to O3 alters the regulation of the antioxidant and inflammatory response in the substantia nigra and the intestine. This indicates that these factors are critical in the loss of regulation in the inflammatory response; they respond to ozone pollution, which can occur in chronic degenerative diseases.
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Affiliation(s)
- Selva Rivas-Arancibia
- Departamento de Fisiología, Facultad de Medicina, Universidad Nacional Autónoma de México, Mexico City 04510, Mexico; (E.R.-M.); (M.V.-F.); (A.M.-M.); (E.H.-O.); (C.R.-R.)
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Tubau-Juni N, Hontecillas R, Leber AJ, Alva SS, Bassaganya-Riera J. Treating Autoimmune Diseases With LANCL2 Therapeutics: A Novel Immunoregulatory Mechanism for Patients With Ulcerative Colitis and Crohn's Disease. Inflamm Bowel Dis 2024; 30:671-680. [PMID: 37934790 DOI: 10.1093/ibd/izad258] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/03/2023] [Indexed: 11/09/2023]
Abstract
Lanthionine synthetase C-like 2 (LANCL2) therapeutics have gained increasing recognition as a novel treatment modality for a wide range of autoimmune diseases. Genetic ablation of LANCL2 in mice results in severe inflammatory phenotypes in inflammatory bowel disease (IBD) and lupus. Pharmacological activation of LANCL2 provides therapeutic efficacy in mouse models of intestinal inflammation, systemic lupus erythematosus, rheumatoid arthritis, multiple sclerosis, and psoriasis. Mechanistically, LANCL2 activation enhances regulatory CD4 + T cell (Treg) responses and downregulates effector responses in the gut. The stability and suppressive capacities of Treg cells are enhanced by LANCL2 activation through engagement of immunoregulatory mechanisms that favor mitochondrial metabolism and amplify IL-2/CD25 signaling. Omilancor, the most advanced LANCL2 immunoregulatory therapeutic in late-stage clinical development, is a phase 3 ready, first-in-class, gut-restricted, oral, once-daily, small-molecule therapeutic in clinical development for the treatment of UC and CD. In this review, we discuss this novel mechanism of mucosal immunoregulation and how LANCL2-targeting therapeutics could help address the unmet clinical needs of patients with autoimmune diseases, starting with IBD.
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Wen Y, Wang H, Tian D, Wang G. TH17 cell: a double-edged sword in the development of inflammatory bowel disease. Therap Adv Gastroenterol 2024; 17:17562848241230896. [PMID: 38390028 PMCID: PMC10883129 DOI: 10.1177/17562848241230896] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/16/2023] [Accepted: 01/17/2024] [Indexed: 02/24/2024] Open
Abstract
Inflammatory bowel disease (IBD) is a chronic nonspecific inflammatory disease of the gastrointestinal tract, and its pathogenesis has not been fully understood. Extensive dysregulation of the intestinal mucosal immune system is critical in the development and progression of IBD. T helper (Th) 17 cells have the characteristics of plasticity. They can transdifferentiate into subpopulations with different functions in response to different factors in the surrounding environment, thus taking on different roles in regulating the intestinal immune responses. In this review, we will focus on the plasticity of Th17 cells as well as the function of Th17 cells and their related cytokines in IBD. We will summarize their pathogenic and protective roles in IBD under different conditions, respectively, hoping to further deepen the understanding of the pathological mechanisms underlying IBD and provide insights for future treatment.
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Affiliation(s)
- Yue Wen
- Department of Gastroenterology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Han Wang
- Department of Gastroenterology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Dean Tian
- Department of Gastroenterology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430000, China
| | - Ge Wang
- Department of Gastroenterology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430000, China
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9
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Sasaki K, Kubo M, Wang YC, Lu L, Vujevich V, Wood-Trageser MA, Golnoski K, Lesniak A, Gunabushanam V, Ganoza A, Wijkstrom MJ, Humar A, Demetris AJ, Thomson AW, Ezzelarab MB. Multiple infusions of ex vivo-expanded regulatory T cells promote CD163 + myeloid cells and kidney allograft survival in non-lymphodepleted non-human primates. Kidney Int 2024; 105:84-98. [PMID: 37839695 DOI: 10.1016/j.kint.2023.09.021] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2023] [Revised: 08/18/2023] [Accepted: 09/15/2023] [Indexed: 10/17/2023]
Abstract
Clinical verification of adoptively transferred regulatory T cell (Treg) efficacy in transplantation remains challenging. Here, we examined the influence of autologous ex vivo-expanded polyclonal Tregs on kidney graft survival in a clinically relevant non-human primate model. Peripheral blood Tregs were isolated and expanded using artificial antigen presenting cells. Immunosuppression was comprised of tapered tacrolimus and CTLA4 immunoglobulin, in five animals each without or with Treg infusions. Escalating Treg doses were administered 6, 10, 13, 16, 20, 23, 27 and 30 days after transplant. Infused Tregs were monitored for Treg signature, anti-apoptotic (Bcl-2) and proliferation (Ki67) marker expression. Treg infusions prolonged median graft survival time significantly from 35 to 70 days. Treg marker (Ki67 and Bcl-2) expression by infused Tregs diminished after their infusion but remained comparable to that of circulating native Tregs. No major changes in circulating donor-reactive T cell responses or total Treg percentages, or in graft-infiltrating T cell subsets were observed with Treg infusion. However, Treg infusion was associated with significant increases in CD163 expression by circulating HLA-DR+ myeloid cells and elevated levels of circulating soluble CD163. Further, graft-infiltrating CD163+ cells were increased with Treg infusion. Thus, multiple Treg infusions were associated with M2-like myeloid cell enhancement that may mediate immunomodulatory, anti-inflammatory and graft reparative effects.
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Affiliation(s)
- Kazuki Sasaki
- Starzl Transplantation Institute, Department of Surgery, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
| | - Masahiko Kubo
- Starzl Transplantation Institute, Department of Surgery, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
| | - Yu-Chao Wang
- Starzl Transplantation Institute, Department of Surgery, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
| | - Lien Lu
- Starzl Transplantation Institute, Department of Surgery, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
| | - Veronica Vujevich
- Starzl Transplantation Institute, Department of Surgery, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
| | - Michelle A Wood-Trageser
- Department of Pathology, Starzl Transplantation Institute, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
| | - Kayla Golnoski
- Department of Pathology, Starzl Transplantation Institute, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
| | - Andrew Lesniak
- Department of Pathology, Starzl Transplantation Institute, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
| | - Vikraman Gunabushanam
- Starzl Transplantation Institute, Department of Surgery, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
| | - Armando Ganoza
- Starzl Transplantation Institute, Department of Surgery, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
| | - Martin J Wijkstrom
- Starzl Transplantation Institute, Department of Surgery, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
| | - Abhinav Humar
- Starzl Transplantation Institute, Department of Surgery, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
| | - Anthony J Demetris
- Department of Pathology, Starzl Transplantation Institute, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
| | - Angus W Thomson
- Starzl Transplantation Institute, Department of Surgery, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA; Department of Immunology, Starzl Transplantation Institute, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
| | - Mohamed B Ezzelarab
- Starzl Transplantation Institute, Department of Surgery, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA.
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10
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Ye X, Zhang M, Zhang N, Wei H, Wang B. Gut-brain axis interacts with immunomodulation in inflammatory bowel disease. Biochem Pharmacol 2024; 219:115949. [PMID: 38036192 DOI: 10.1016/j.bcp.2023.115949] [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: 07/27/2023] [Revised: 11/23/2023] [Accepted: 11/27/2023] [Indexed: 12/02/2023]
Abstract
The brain and the gastrointestinal (GI) tract are important sensory organs in the body and the two-way interaction that exists between them regulates key physiological and homeostatic functions. A growing body of research suggests that this bidirectional communication influences the development and progression of functional GI disorders and plays an important role in the treatment of central nervous system (CNS) disorders. Inflammatory bowel disease (IBD) is a classic intestinal disorder with a high prevalence but still unclear pathogenesis that has been widely discussed in recent years. However, in the studies available to date, we find that many authors have chosen to discuss the influence of the brain on intestinal disorders from the top down, starting with physical and psychological disorders. Coming very naturally, based on these substantial research evidence, we focus on exploring the links between bidirectional communication in the gut-brain axis and IBD, and highlight the role of the gut microbiota, vagus nerve (VN), receptors and immune cells involved in regulating IBD through the gut-brain axis in this review.
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Affiliation(s)
- Xianglu Ye
- Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Miao Zhang
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China; Experiment Center for Science and Technology, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Ning Zhang
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China.
| | - Hai Wei
- Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China.
| | - Bing Wang
- Center for Pharmaceutics Research, Shanghai Institute of Materia Medica Chinese Academy of Sciences, 501 Hai-ke Rd, Shanghai 201203, China.
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11
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Yin Y, Ouyang S, Li Q, Du Y, Xiong S, Zhang M, Wang W, Zhang T, Liu C, Gao Y. Salivary interleukin-17A and interferon-γ levels are elevated in children with food allergies in China. Front Immunol 2023; 14:1232187. [PMID: 38090557 PMCID: PMC10715589 DOI: 10.3389/fimmu.2023.1232187] [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: 05/31/2023] [Accepted: 11/10/2023] [Indexed: 12/18/2023] Open
Abstract
Introduction Food allergies have a substantial impact on patient health, but their mechanisms are poorly understood, and strategies for diagnosing, preventing, and treating food allergies are not optimal. This study explored the levels of and relationship between IL-17A and IFN-γ in the saliva of children with food allergies, which will form the basis for further mechanistic discoveries as well as prevention and treatment measures for food allergies. Methods A case-control study with 1:1 matching was designed. Based on the inclusion criteria, 20 case-control pairs were selected from patients at the Skin and Allergy Clinic and children of employees. IL-17A and IFN-γ levels in saliva were measured with a Luminex 200 instrument. A general linear model was used to analyze whether the salivary IL-17A and IFN-γ levels in the food allergy group differed from those in the control group. Results The general linear model showed a significant main effect of group (allergy vs. healthy) on the levels of IL-17A and IFN-γ. The mean IL-17A level (0.97 ± 0.09 pg/ml) in the food allergy group was higher than that in the healthy group (0.69 ± 0.09 pg/ml). The mean IFN-γ level (3.0 ± 0.43 pg/ml) in the food allergy group was significantly higher than that in the healthy group (1.38 ± 0.43 pg/ml). IL-17A levels were significantly positively related to IFN-γ levels in children with food allergies (r=0.79) and in healthy children (r=0.98). Discussion The salivary IL-17A and IFN-γ levels in children with food allergies were higher than those in healthy children. This finding provides a basis for research on new methods of diagnosing food allergies and measuring the effectiveness of treatment.
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Affiliation(s)
- Yan Yin
- Department of Integrated Early Childhood Development, Capital Institute of Pediatrics, Beijing, China
| | - Shengrong Ouyang
- Department of Biochemistry and Immunology, Capital Institute of Pediatrics, Beijing, China
| | - Qin Li
- Environmental Standards Institute, Chinese Research Academy of Environmental Sciences, Beijing, China
| | - Yuyang Du
- Department of Allergy, Affiliated Children’s Hospital of Capital Institute of Pediatrics, Beijing, China
| | - Shiqiu Xiong
- Department of Allergy, Affiliated Children’s Hospital of Capital Institute of Pediatrics, Beijing, China
| | - Min Zhang
- Department of Biochemistry and Immunology, Capital Institute of Pediatrics, Beijing, China
| | - Wei Wang
- Department of Biochemistry and Immunology, Capital Institute of Pediatrics, Beijing, China
| | - Ting Zhang
- Department of Biochemistry and Immunology, Capital Institute of Pediatrics, Beijing, China
| | - Chuanhe Liu
- Department of Allergy, Affiliated Children’s Hospital of Capital Institute of Pediatrics, Beijing, China
| | - Ying Gao
- Department of Dermatology, Affiliated Children’s Hospital of Capital Institute of Pediatrics, Beijing, China
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12
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Li C, Peng K, Xiao S, Long Y, Yu Q. The role of Lactobacillus in inflammatory bowel disease: from actualities to prospects. Cell Death Discov 2023; 9:361. [PMID: 37773196 PMCID: PMC10541886 DOI: 10.1038/s41420-023-01666-w] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Revised: 09/18/2023] [Accepted: 09/22/2023] [Indexed: 10/01/2023] Open
Abstract
Inflammatory Bowel Disease (IBD), a chronic nonspecific intestinal inflammatory disease, is comprised of Ulcerative Colitis (UC) and Crohn's Disease (CD). IBD is closely related to a systemic inflammatory reaction and affects the progression of many intestinal and extraintestinal diseases. As one of the representative bacteria for probiotic-assisted therapy in IBD, multiple strains of Lactobacillus have been proven to alleviate intestinal damage and strengthen the intestinal immunological barrier, epithelial cell barrier, and mucus barrier. Lactobacillus also spares no effort in the alleviation of IBD-related diseases such as Colitis-associated Colorectal cancer (CAC), Alzheimer's Disease (AD), Depression, Anxiety, Autoimmune Hepatitis (AIH), and so on via gut-brain axis and gut-liver axis. This article aims to discuss the role of Lactobacillus in IBD and IBD-related diseases, including its underlying mechanisms and related curative strategies from the present to the future.
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Affiliation(s)
- Congxin Li
- Department of Gastroenterology, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan, P. R. China
- Institute of Liver and Gastrointestinal Diseases, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan, P. R. China
| | - Kaixin Peng
- Department of Gastroenterology, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan, P. R. China
- Institute of Liver and Gastrointestinal Diseases, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan, P. R. China
| | - Siqi Xiao
- Department of Gastroenterology, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan, P. R. China
- Institute of Liver and Gastrointestinal Diseases, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan, P. R. China
| | - Yuanyuan Long
- Department of Gastroenterology, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan, P. R. China
- Institute of Liver and Gastrointestinal Diseases, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan, P. R. China
| | - Qin Yu
- Department of Gastroenterology, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan, P. R. China.
- Institute of Liver and Gastrointestinal Diseases, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan, P. R. China.
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13
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Nakase H. Understanding the efficacy of individual Janus kinase inhibitors in the treatment of ulcerative colitis for future positioning in inflammatory bowel disease treatment. Immunol Med 2023; 46:121-130. [PMID: 37036140 DOI: 10.1080/25785826.2023.2195522] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Accepted: 03/19/2023] [Indexed: 04/11/2023] Open
Abstract
Recent studies have gradually elucidated the pathogenesis of inflammatory bowel disease; thus, the Janus kinase (JAK)-signal transducers and activators of transcription pathway are strongly involved in the pathophysiology of inflammatory bowel disease. Generally, Janus kinase inhibitors are being used for the treatment of rheumatoid arthritis and other immunological diseases, with the therapeutic promising effects. Currently, in Japan, three Janus kinase inhibitors, namely tofacitinib, filgotinib, and upadacitinib, are available for the treatment of patients with active ulcerative colitis. Therefore, evaluating the efficacy and safety of each JAK inhibitor is essential for determining the role of JAK inhibitors in future therapeutic strategies for inflammatory bowel disease (IBD).
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Affiliation(s)
- Hiroshi Nakase
- Department of Gastroenterology and Hepatology, Sapporo Medical University School of Medicine, Sapporo, Japan
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14
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Duan S, Cao Y, Chen P, Yang Y, Zhang Y. Circulating and intestinal regulatory T cells in inflammatory bowel disease: A systemic review and meta-analysis. Int Rev Immunol 2023; 43:83-94. [PMID: 37615427 DOI: 10.1080/08830185.2023.2249525] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Accepted: 07/17/2023] [Indexed: 08/25/2023]
Abstract
Regulatory T cells (Tregs) play an important immunosuppressive role in inflammatory bowel disease (IBD). However, findings on the quantitative and functional changes of intestinal and circulating Tregs in patients with IBD are rather contradictory. We therefore conducted a meta-analysis on this issue. The pooled effect was assessed using the standardized mean difference (SMD) with a 95% confidence interval (CI), and subgroup analyses were performed to investigate heterogeneity. This analysis included 764 IBD (402 UC and 362 CD) patients and 341 healthy controls (HCs) pooled from 17 eligible studies. The percentage of circulating Tregs was significantly decreased in active IBD patients compared to HCs (SMD = -0.95, p < 0.001) and inactive IBD patients (SMD = -0.80, p < 0.001). There was no difference in the percentage of circulating Tregs between inactive IBD patients and HCs. The suppressive function of circulating Tregs was impaired in active IBD patients according to limited data (SMD = -0.75, p = 0.02). Besides, the percentage of intestinal Tregs was significantly higher in inflamed regions than in non-inflamed regions (SMD = 0.85, p < 0.001). Our study quantitatively summarized the quantitative and functional changes of Tregs and supported the therapeutic potential of Tregs in IBD. Moreover, additional research into the functions and characteristics of intestinal Tregs in IBD is needed.
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Affiliation(s)
- Shihao Duan
- Department of Gastroenterology, West China Hospital, Sichuan University, Chengdu, China
| | - Yubin Cao
- Department of Gastroenterology, West China Hospital, Sichuan University, Chengdu, China
| | - Pingrun Chen
- Department of Gastroenterology, West China Hospital, Sichuan University, Chengdu, China
| | - Yi Yang
- Department of Gastroenterology, West China Hospital, Sichuan University, Chengdu, China
| | - Yan Zhang
- Department of Gastroenterology, West China Hospital, Sichuan University, Chengdu, China
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15
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Fadlallah S, Bitar ER, Hussein H, Jallad MA, Matar GM, Rahal EA. The interplay between Epstein-Barr virus DNA and gut microbiota in the development of arthritis in a mouse model. Microbiol Spectr 2023; 11:e0204223. [PMID: 37615438 PMCID: PMC10581075 DOI: 10.1128/spectrum.02042-23] [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: 05/17/2023] [Accepted: 07/02/2023] [Indexed: 08/25/2023] Open
Abstract
Epstein-Barr virus (EBV) DNA may influence the development of autoimmune diseases by increasing the production of proinflammatory cytokines. Such cytokines have been associated with inducing the dysbiosis of colonic microbiota, which, in turn, is a risk factor for autoimmune diseases such as rheumatoid arthritis (RA). Therefore, we investigated the role that EBV DNA may play in modulating the intestinal microbiota and consequent exacerbation of arthritis in a mouse model. Mice were treated with collagen (arthritis-inducing agent), EBV DNA and collagen, EBV DNA, or water. Fecal samples were collected from arthritic and control mice, and 16S rRNA sequencing was performed to determine the effect of EBV DNA on the composition of colonic microbiota. EBV DNA causes a change in the alpha diversity of the microbiota resulting in an increased Chao1 microbial richness and decreased Shannon diversity index in the RA mouse model. In addition, the abundance of particular genera/genus clusters was significantly altered among the various groups, with the EBV DNA-exacerbated arthritic group having the highest number of altered genera/genus cluster abundances. This group also had the highest number of cells co-expressing IL-17A, FOXP3, and IFNγ in the colons. Antimicrobial-cleared mice transplanted with fecal samples from EBV DNA-exacerbated arthritic mice showed a higher incidence and enhanced severity of RA compared to those transplanted with fecal samples from water or collagen-treated mice. IMPORTANCE Epstein-Barr virus (EBV) DNA alters the composition and diversity of the gut microbiota in a rheumatoid arthritis (RA) mouse model. These induced changes are associated with enhanced severity of symptoms. This better understanding of the various factors involved in the development of RA will possibly help in creating individualized treatments for RA patients including target mediators triggered by viral DNA. Given that a large swathe of the population harbors EBV, a significant proportion of subjects with arthritis may benefit from possible approaches that target EBV or mediators triggered by this virus.
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Affiliation(s)
- Sukayna Fadlallah
- Department of Experimental Pathology, Immunology, and Microbiology, American University of Beirut, Beirut, Lebanon
| | - Elio R. Bitar
- Department of Experimental Pathology, Immunology, and Microbiology, American University of Beirut, Beirut, Lebanon
| | - Hadi Hussein
- Department of Experimental Pathology, Immunology, and Microbiology, American University of Beirut, Beirut, Lebanon
- Center for Infectious Diseases Research, American University of Beirut, Beirut, Lebanon
| | - Mary-Ann Jallad
- Department of Experimental Pathology, Immunology, and Microbiology, American University of Beirut, Beirut, Lebanon
| | - Ghassan M. Matar
- Department of Experimental Pathology, Immunology, and Microbiology, American University of Beirut, Beirut, Lebanon
- Center for Infectious Diseases Research, American University of Beirut, Beirut, Lebanon
| | - Elias A. Rahal
- Department of Experimental Pathology, Immunology, and Microbiology, American University of Beirut, Beirut, Lebanon
- Center for Infectious Diseases Research, American University of Beirut, Beirut, Lebanon
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16
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Hou M, Leng Y, Shi Y, Tan Z, Min X. Astragalus membranaceus as a Drug Candidate for Inflammatory Bowel Disease: The Preclinical Evidence. THE AMERICAN JOURNAL OF CHINESE MEDICINE 2023; 51:1501-1526. [PMID: 37530507 DOI: 10.1142/s0192415x23500684] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/03/2023]
Abstract
Inflammatory bowel disease (IBD) is a group of chronic inflammatory disorders that include Crohn's disease (CD) and ulcerative colitis (UC). Today, IBD has no successful treatment. As a result, it is of paramount importance to develop novel therapeutic agents for IBD prevention and treatment. Astragalus membranaceus (AMS) is a traditional Chinese medicine found in the AMS root. Modern pharmacological studies indicate that AMS and its constituents exhibit multiple bioactivities, such as anti-inflammatory, anti-oxidant, immune regulatory, anticancer, hypolipidemic, hypoglycemic, hepatoprotective, expectorant, and diuretic effects. AMS and its active constituents, which have been reported to be effective in IBD treatment, are believed to be viable candidate drugs for IBD treatment. These underlying mechanisms are associated with anti-inflammation, anti-oxidation, immunomodulation, intestinal epithelial repair, gut microbiota homeostasis, and improved energy metabolism. In this review, we summarize the efficacy and underlying mechanisms involved in IBD treatment with AMS and its active constituents in preclinical studies.
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Affiliation(s)
- Min Hou
- The First Clinical Medical College, Lanzhou University, Lanzhou 730000, P. R. China
| | - Yufang Leng
- The First Clinical Medical College, Lanzhou University, Lanzhou 730000, P. R. China
- Department of Anesthesiology, The First Hospital of Lanzhou University, Lanzhou 730000, P. R. China
| | - Yajing Shi
- The First Clinical Medical College, Lanzhou University, Lanzhou 730000, P. R. China
| | - Zhiguo Tan
- The First Clinical Medical College, Lanzhou University, Lanzhou 730000, P. R. China
| | - Xiangzhen Min
- Department of Anesthesiology, The First Hospital of Lanzhou University, Lanzhou 730000, P. R. China
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17
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Rivas-Arancibia S, Miranda-Martínez A, Rodríguez-Martínez E, Hernández-Orozco E, Valdés-Fuentes M, De la Rosa-Sierra R. Ozone Environmental Pollution: Relationship between the Intestine and Neurodegenerative Diseases. Antioxidants (Basel) 2023; 12:1323. [PMID: 37507863 PMCID: PMC10376557 DOI: 10.3390/antiox12071323] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Revised: 06/16/2023] [Accepted: 06/16/2023] [Indexed: 07/30/2023] Open
Abstract
Repeated exposure to environmental ozone causes a chronic state of oxidative stress. This state is present in chronic degenerative diseases and induces a loss of control of the inflammatory response. Redox system dysfunction and failures in control of inflammatory responses are involved in a vicious circle that maintains and increases the degenerative process. The intestine also responds to secondary reactive species formed by exposure to ozone doses, generating noxious stimuli that increase degenerative damage. This review aims to elucidate how environmental pollution, mainly by ozone, induces a state of chronic oxidative stress with the loss of regulation of the inflammatory response, both in the intestine and in the brain, where the functionality of both structures is altered and plays a determining role in some neurodegenerative and chronic degenerative diseases. For this purpose, we searched for information on sites such as the Cochrane Library Database, PubMed, Scopus, and Medscape. Reviewing the data published, we can conclude that environmental pollutants are a severe health problem. Ozone pollution has different pathways of action, both molecular and systemic, and participates in neurodegenerative diseases such as Parkinson's and Alzheimer's disease as well in bowel diseases as Inflammatory Bowel Disease, Crohn's Disease, and Irritable Bowel Syndrome.
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Affiliation(s)
- Selva Rivas-Arancibia
- Departamento de Fisiología, Facultad de Medicina, Universidad Nacional Autónoma de México, Mexico City 04510, Mexico
| | - Alfredo Miranda-Martínez
- Departamento de Fisiología, Facultad de Medicina, Universidad Nacional Autónoma de México, Mexico City 04510, Mexico
| | - Erika Rodríguez-Martínez
- Departamento de Fisiología, Facultad de Medicina, Universidad Nacional Autónoma de México, Mexico City 04510, Mexico
| | - Eduardo Hernández-Orozco
- Departamento de Fisiología, Facultad de Medicina, Universidad Nacional Autónoma de México, Mexico City 04510, Mexico
| | - Marlen Valdés-Fuentes
- Departamento de Fisiología, Facultad de Medicina, Universidad Nacional Autónoma de México, Mexico City 04510, Mexico
| | - Roberto De la Rosa-Sierra
- Departamento de Fisiología, Facultad de Medicina, Universidad Nacional Autónoma de México, Mexico City 04510, Mexico
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18
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Fang Y, Zhang Q, Lv C, Guo Y, He Y, Guo P, Wei Z, Xia Y, Dai Y. Mitochondrial fusion induced by transforming growth factor-β1 serves as a switch that governs the metabolic reprogramming during differentiation of regulatory T cells. Redox Biol 2023; 62:102709. [PMID: 37116255 PMCID: PMC10165137 DOI: 10.1016/j.redox.2023.102709] [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: 01/31/2023] [Revised: 04/19/2023] [Accepted: 04/20/2023] [Indexed: 04/30/2023] Open
Abstract
Although metabolic reprogramming during the differentiation of regulatory T cells (Treg cells) has been extensively studied, the molecular switch to alter energy metabolism remains undefined. The present study explores the critical role of mitochondrial dynamics in the reprogramming and consequent generation of Treg cells. The results showed that during Treg cell differentiation, mitochondrial fusion but not fission led to elevation of oxygen consumption rate values, facilitation of metabolic reprogramming, and increase of number of Treg cells and expression of Foxp3 in vitro and in vivo. Mechanistically, mitochondrial fusion favored fatty acid oxidation but restricted glycolysis in Treg cells through down-regulating the expression of HIF-1α. Transforming growth factor-β1 (TGF-β1) played a crucial role in the induction of mitochondrial fusion, which activated Smad2/3, promoted the expression of PGC-1α and therefore facilitated the expression of mitochondrial fusion proteins. In conclusion, during Treg cell differentiation, TGF-β1 promotes PGC-1α-mediated mitochondrial fusion, which drives metabolic reprogramming from glycolysis to fatty acid oxidation via suppressing HIF-1α expression, and therefore favors the generation of Treg cells. The signals and proteins involved in mitochondrial fusion are potential therapeutic targets for Treg cell-related diseases.
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Affiliation(s)
- Yulai Fang
- Department of Pharmacology of Chinese Materia Medica, School of Traditional Chinese Pharmacy, China Pharmaceutical University, 639 Long Mian Avenue, Nanjing, 211198, China; Department of Pharmacognosy, School of Traditional Chinese Pharmacy, China Pharmaceutical University, 639 Long Mian Avenue, Nanjing, 211198, China
| | - Qin Zhang
- Department of Pharmacology of Chinese Materia Medica, School of Traditional Chinese Pharmacy, China Pharmaceutical University, 639 Long Mian Avenue, Nanjing, 211198, China
| | - Changjun Lv
- Department of Pharmacology of Chinese Materia Medica, School of Traditional Chinese Pharmacy, China Pharmaceutical University, 639 Long Mian Avenue, Nanjing, 211198, China
| | - Yilei Guo
- Department of Pharmacology of Chinese Materia Medica, School of Traditional Chinese Pharmacy, China Pharmaceutical University, 639 Long Mian Avenue, Nanjing, 211198, China
| | - Yue He
- Department of Pharmacology of Chinese Materia Medica, School of Traditional Chinese Pharmacy, China Pharmaceutical University, 639 Long Mian Avenue, Nanjing, 211198, China
| | - Pengxiang Guo
- Department of Pharmacology of Chinese Materia Medica, School of Traditional Chinese Pharmacy, China Pharmaceutical University, 639 Long Mian Avenue, Nanjing, 211198, China
| | - Zhifeng Wei
- Department of Pharmacology of Chinese Materia Medica, School of Traditional Chinese Pharmacy, China Pharmaceutical University, 639 Long Mian Avenue, Nanjing, 211198, China
| | - Yufeng Xia
- Department of Pharmacognosy, School of Traditional Chinese Pharmacy, China Pharmaceutical University, 639 Long Mian Avenue, Nanjing, 211198, China.
| | - Yue Dai
- Department of Pharmacology of Chinese Materia Medica, School of Traditional Chinese Pharmacy, China Pharmaceutical University, 639 Long Mian Avenue, Nanjing, 211198, China.
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19
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Kim MH, Lee CW. Phosphatase Ssu72 Is Essential for Homeostatic Balance Between CD4 + T Cell Lineages. Immune Netw 2023; 23:e12. [PMID: 37179750 PMCID: PMC10166661 DOI: 10.4110/in.2023.23.e12] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2022] [Revised: 12/01/2022] [Accepted: 12/21/2022] [Indexed: 05/15/2023] Open
Abstract
Ssu72, a dual-specificity protein phosphatase, not only participates in transcription biogenesis, but also affects pathophysiological functions in a tissue-specific manner. Recently, it has been shown that Ssu72 is required for T cell differentiation and function by controlling multiple immune receptor-mediated signals, including TCR and several cytokine receptor signaling pathways. Ssu72 deficiency in T cells is associated with impaired fine-tuning of receptor-mediated signaling and a defect in CD4+ T cell homeostasis, resulting in immune-mediated diseases. However, the mechanism by which Ssu72 in T cells integrates the pathophysiology of multiple immune-mediated diseases is still poorly elucidated. In this review, we will focus on the immunoregulatory mechanism of Ssu72 phosphatase in CD4+ T cell differentiation, activation, and phenotypic function. We will also discuss the current understanding of the correlation between Ssu72 in T cells and pathological functions which suggests that Ssu72 might be a therapeutic target in autoimmune disorders and other diseases.
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Affiliation(s)
- Min-Hee Kim
- Department of Molecular Cell Biology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Suwon 16419, Korea
| | - Chang-Woo Lee
- Department of Molecular Cell Biology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Suwon 16419, Korea
- SKKU Institute for Convergence, Sungkyunkwan University, Suwon 16419, Korea
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20
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Kou Y, Jiang Y, Liu S, Yang P, Lu Y, Liu H, Li M. Regulatory T cells showed characteristics of T helper-17(Th17) cells in mice periodontitis model. Oral Dis 2023; 29:1149-1162. [PMID: 34741371 DOI: 10.1111/odi.14072] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2021] [Revised: 09/29/2021] [Accepted: 10/29/2021] [Indexed: 01/05/2023]
Abstract
OBJECTIVES This study aimed to clarify the regulatory role of Th17-Treg balance in periodontitis and further reveal Treg plasticity. MATERIALS AND METHODS An experimental periodontitis model was established by ligation and injection of Pg-LPS. Inflammatory factors were measured by ELISA and RT-PCR. Alveolar bone absorption was evaluated by micro-CT and histomorphology. Quantities of Treg and Th17 cell and their related gene expression were examined. Furthermore, after magnetic bead-sorting spleen Treg cells, Treg/Th17 characteristic genes were explored. Immunofluorescence double staining of Foxp3 and IL-17 was conducted to further reveal Treg plasticity. RESULTS Inflammatory cytokines in serum and gingival tissue increased significantly in periodontitis, which revealed obvious crestal bone loss. Further analysis showed that the number of Th17 cells and expression of related genes increased more significantly than Treg cells, demonstrating Treg-Th17 imbalance. Flow cytometry showed that the proportions of Treg cells in the blood and spleen were lower in periodontitis group. Furthermore, Foxp3 was downregulated, and Rorc/ IL-17A were increased in Treg cells of periodontitis group. Immunofluorescence double staining showed significantly increased number of IL-17+Foxp3+ cells in periodontitis. CONCLUSIONS These results provided evidence that Treg cells showed characteristics of Th17 cells in mice with periodontitis, although its mechanisms require further study.
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Affiliation(s)
- Yuying Kou
- Department of Bone Metabolism, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Jinan, Shandong, China
| | - Yujun Jiang
- Department of Bone Metabolism, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Jinan, Shandong, China
| | - Shanshan Liu
- Department of Bone Metabolism, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Jinan, Shandong, China
| | - Panpan Yang
- Department of Bone Metabolism, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Jinan, Shandong, China
| | - Yupu Lu
- Department of Bone Metabolism, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Jinan, Shandong, China
| | - Hongrui Liu
- Department of Bone Metabolism, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Jinan, Shandong, China
- Department of Periodontology, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Jinan, Shandong, China
| | - Minqi Li
- Department of Bone Metabolism, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Jinan, Shandong, China
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21
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Ding Y, Yang Y, Xue L. Immune cells and their related genes provide a new perspective on the common pathogenesis of ankylosing spondylitis and inflammatory bowel diseases. Front Immunol 2023; 14:1137523. [PMID: 37063924 PMCID: PMC10101339 DOI: 10.3389/fimmu.2023.1137523] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Accepted: 03/21/2023] [Indexed: 04/03/2023] Open
Abstract
BackgroundThe close relationship between ankylosing spondylitis (AS) and inflammatory bowel diseases (IBD) has been supported by many aspects, including but not limited to clinical manifestations, epidemiology and pathogenesis. Some evidence suggests that immune cells actively participated in the pathogenesis of both diseases. However, information on which cells are primarily involved in this process and how these cells mobilize, migrate and interact is still limited.MethodsDatasets were downloaded from Gene Expression Omnibus (GEO) database. Common differentially expressed genes (coDEGs) were identified by package “limma”. The protein-protein interaction (PPI) network and Weighted Gene Co-Expression Network Analysis (WGCNA) were used to analyze the interactions between coDEGs. KEGG pathway enrichment analysis and inverse cumulative distribution function were applied to identify common differential pathways, while Gene Set Enrichment Analysis (GSEA) was used to confirm the significance. Correlation analysis between coDEGs and immune cells led to the identification of critical immune-cell-related coDEGs. The diagnostic models were established based on least absolute shrinkage and selection operator (LASSO) regression, while receiver operating characteristic (ROC) analysis was used to identify the ability of the model. Validation datasets were imported to demonstrate the significant association of coDEGs with specific immune cells and the capabilities of the diagnostic model.ResultsIn total, 67 genes were up-regulated and 185 genes were down-regulated in both diseases. Four down-regulated pathways and four up-regulated pathways were considered important. Up-regulated coDEGs were firmly associated with neutrophils, while down-regulated genes were significantly associated with CD8+ T−cells and CD4+ T−cells in both AS and IBD datasets. Five up-regulated and six down-regulated key immue-cell-related coDEGs were identified. Diagnostic models based on key immue-cell-related coDEGs were established and tested. Validation datasets confirmed the significance of the correlation between coDEGs and specific immune cells.ConclusionThis study provides fresh insights into the co-pathogenesis of AS and IBD. It is proposed that neutrophils and T cells may be actively involved in this process, however, in opposite ways. The immue-cell-related coDEGs, revealed in this study, may be relevant to their regulation, although relevant research is still lacking.
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22
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Jalalvand M, Enayati S, Akhtari M, Madreseh E, Jamshidi A, Farhadi E, Mahmoudi M, Amirzargar A. Blood regulatory T cells in inflammatory bowel disease, a systematic review, and meta-analysis. Int Immunopharmacol 2023; 117:109824. [PMID: 36827916 DOI: 10.1016/j.intimp.2023.109824] [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: 08/16/2022] [Revised: 01/07/2023] [Accepted: 01/28/2023] [Indexed: 02/24/2023]
Abstract
INTRODUCTION Inflammatory bowel disease (IBD) is an autoimmune disease involving various parts of the gastrointestinal (GI) tract, which includes Crohn's disease (CD) and ulcerative colitis (UC). Due to the contradictory results regarding the percentage of peripheral blood (PB) regulatory T cells (Tregs) in IBD patients, this meta-analysis aimed to determine the Tregs frequency in IBD patients. METHOD We searched PubMed, Web of Science, SCOPUS, and Google Scholar databases for relevant observational articles that analyzed and reported the frequency of PB Tregs in IBD patients and healthy control groups. After choosing the related articles by two reviewers, the data regarding the definition of Tregs and their frequencies in different groups were recorded. RESULT In 22 studies, the results showed a nonsignificant difference in the frequency of PB Tregs between IBD cases and control subjects (SMD: -0.27, 95 % CI: -0.78, 0.23). However, the frequency of CD4+CD25+CD127- (SMD: -0.89, 95 % CI: -1.52, -0.26) and CD4+CD25+FoxP3+ (SMD: -1.32, 95 % CI: -2.37, -0.26) Tregs were significantly lower in IBD cases, compared to healthy subjects. Also, UC cases and active IBD cases showed a significantly lower frequency of Treg cells, compared to controls and remission IBD cases, respectively (SMD: -0.68, 95 % CI: -1.24, -0.11 and SMD: -0.60, 95 % CI: -0.93, -0.27). CONCLUSION Our study highlighted a probable decrease of Tregs in IBD patients, especially the patients with active states of the disease. The decrease of Treg cells might cause an imbalance in the immune system and the over-activation of auto-immune responses against the digestive tract.
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Affiliation(s)
- Mobina Jalalvand
- Rheumatology Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Samaneh Enayati
- Rheumatology Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Maryam Akhtari
- Rheumatology Research Center, Tehran University of Medical Sciences, Tehran, Iran; Inflammation Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Elham Madreseh
- Rheumatology Research Center, Tehran University of Medical Sciences, Tehran, Iran; Inflammation Research Center, Tehran University of Medical Sciences, Tehran, Iran; Department of Epidemiology and Biostatistics, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Ahmadreza Jamshidi
- Rheumatology Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Elham Farhadi
- Rheumatology Research Center, Tehran University of Medical Sciences, Tehran, Iran; Inflammation Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Mahdi Mahmoudi
- Rheumatology Research Center, Tehran University of Medical Sciences, Tehran, Iran; Inflammation Research Center, Tehran University of Medical Sciences, Tehran, Iran.
| | - Aliakbar Amirzargar
- Department of Immunology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran.
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23
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Laukova M, Glatman Zaretsky A. Regulatory T cells as a therapeutic approach for inflammatory bowel disease. Eur J Immunol 2023; 53:e2250007. [PMID: 36562391 PMCID: PMC10107179 DOI: 10.1002/eji.202250007] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Revised: 11/20/2022] [Accepted: 12/22/2022] [Indexed: 12/24/2022]
Abstract
Foxp3+ T regulatory (Treg) cells suppress inflammation and are essential for maintaining tissue homeostasis. A growing appreciation of tissue-specific Treg functions has built interest in leveraging the endogenous suppressive mechanisms of these cells into cellular therapeutics in organ-specific diseases. Notably, Treg cells play a critical role in maintaining the intestinal environment. As a barrier site, the gut requires Treg cells to mediate interactions with the microbiota, support barrier integrity, and regulate the immune system. Without fully functional Treg cells, intestinal inflammation and microbial dysbiosis ensue. Thus, there is a particular interest in developing Treg cellular therapies for intestinal inflammatory disease, such as inflammatory bowel disease (IBD). This article reviews some of the critical pathways that are dysregulated in IBD, Treg cell mechanisms of suppression, and the efforts and approaches in the field to develop these cells as a cellular therapy for IBD.
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24
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Pouw JNJ, Nordkamp MAMMO, van Kempen TT, Concepcion ANA, van Laar JMJ, van Wijk FF, Spierings JJ, Leijten EFAE, Boes MM. Regulatory T cells in psoriatic arthritis: an IL-17A-producing, Foxp3 intCD161 + RORγt + ICOS + phenotype, that associates with the presence of ADAMTSL5 autoantibodies. Sci Rep 2022; 12:20675. [PMID: 36450783 PMCID: PMC9712434 DOI: 10.1038/s41598-022-24924-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2022] [Accepted: 11/22/2022] [Indexed: 12/02/2022] Open
Abstract
In psoriatic arthritis (PsA), predisposing class I HLA alleles, the presence of synovial clonally proliferated CD8 + T cells and autoantibodies all point towards the loss of immune tolerance. However, the key mechanisms that lead to immune dysregulation are not fully understood. In other types of inflammatory arthritis, T regulatory cell (Treg) dysfunction and plasticity at sites of inflammation were suggested to negatively affect peripheral tolerance. We here addressed if Treg variances associate with psoriatic disease. We collected clinical data, sera and peripheral blood mononuclear cells from 13 healthy controls, 21 psoriasis and 21 PsA patients. In addition, we obtained synovial fluid mononuclear cells from 6 PsA patients. We studied characteristics of CD4 + CD25 + CD127loFoxp3 + Tregs by flow cytometry and used ELISA to quantify antibodies against ADAMTSL5, a recently discovered autoantigen in psoriatic disease. In comparison with their circulating counterparts, Tregs from inflamed joints express increased levels of ICOS, CTLA-4 and TIGIT. Furthermore, synovial fluid-derived Tregs have a distinct phenotype, characterized by IL-17A production and upregulation of CD161 and RORγt. We identified a subset of Tregs with intermediate Foxp3 expression as the major cytokine producer. Furthermore, ICOS + Tregs associate with PsA disease activity as measured by PASDAS. Lastly, we observed that presence of the Foxp3int Tregs associates with an increased abundance of anti-ADAMTSL5 autoantibodies. Tregs derived from the inflammatory environment of inflamed PsA joints exhibit a distinct phenotype, which associates with loss of peripheral immune tolerance in psoriatic disease.
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Affiliation(s)
- J. N. Juliëtte Pouw
- grid.5477.10000000120346234Department of Rheumatology and Clinical Immunology, University Medical Center Utrecht, Utrecht University, H03.103, P.O. Box 85500, 3508 GA Utrecht, The Netherlands ,grid.5477.10000000120346234Center for Translational Immunology, University Medical Center Utrecht, Utrecht University, 3508 AB Utrecht, The Netherlands
| | - M. A. M. Michel Olde Nordkamp
- grid.5477.10000000120346234Center for Translational Immunology, University Medical Center Utrecht, Utrecht University, 3508 AB Utrecht, The Netherlands
| | - T. Tessa van Kempen
- grid.440506.30000 0000 9631 4629Biomedical Laboratory Sciences, Avans University of Applied Sciences, 4800 RA Breda, The Netherlands
| | - A. N. Arno Concepcion
- grid.5477.10000000120346234Department of Rheumatology and Clinical Immunology, University Medical Center Utrecht, Utrecht University, H03.103, P.O. Box 85500, 3508 GA Utrecht, The Netherlands
| | - J. M. Jacob van Laar
- grid.5477.10000000120346234Department of Rheumatology and Clinical Immunology, University Medical Center Utrecht, Utrecht University, H03.103, P.O. Box 85500, 3508 GA Utrecht, The Netherlands
| | - F. Femke van Wijk
- grid.5477.10000000120346234Center for Translational Immunology, University Medical Center Utrecht, Utrecht University, 3508 AB Utrecht, The Netherlands
| | - J. Julia Spierings
- grid.5477.10000000120346234Department of Rheumatology and Clinical Immunology, University Medical Center Utrecht, Utrecht University, H03.103, P.O. Box 85500, 3508 GA Utrecht, The Netherlands
| | - E. F. A. Emmerik Leijten
- grid.452818.20000 0004 0444 9307Department of Rheumatology, Sint Maartenskliniek, 6500 GM Nijmegen, The Netherlands
| | - M. Marianne Boes
- grid.5477.10000000120346234Center for Translational Immunology, University Medical Center Utrecht, Utrecht University, 3508 AB Utrecht, The Netherlands ,grid.5477.10000000120346234Department of Pediatric Immunology, Wilhelmina Children’s Hospital, Utrecht University, 3508 AB Utrecht, The Netherlands
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Duclaux-Loras R, Boschetti G, Flourie B, Roblin X, Leluduec JB, Paul S, Almeras T, Ruel K, Buisson A, Bienvenu J, Josson C, Jasnowski R, Legastelois S, Foussat A, Meunier C, Viret C, Rozieres A, Faure M, Kaiserlian D, Nancey S. Relationships of circulating CD4+ T cell subsets and cytokines with the risk of relapse in patients with Crohn’s disease. Front Immunol 2022; 13:864353. [DOI: 10.3389/fimmu.2022.864353] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Accepted: 09/13/2022] [Indexed: 11/06/2022] Open
Abstract
Background and aimsWe aimed to analyze circulating CD4+ T cell subsets and cytokines during the course of Crohn’s disease (CD).Methods and resultsCD4+ T cell subsets, ultrasensitive C-reactive protein (usCRP), and various serum cytokines (IL-6, IL-8, IL-10, IL-13, IL-17A, IL-23, TNFα, IFNγ, and TGFβ) were prospectively monitored every 3 months for 1 year, using multicolor flow cytometry and an ultrasensitive Erenna method in CD patients in remission at inclusion. Relapse occurred in 35 out of the 113 consecutive patients (31%). For patients in remission within 4 months prior to relapse and at the time of relapse, there was no significant difference in Th1, Th17, Treg, and double-positive CD4+ T cell subsets co-expressing either IFNγ and FOXP3, IL-17A and FOXP3, or IFNγ and IL-17A. On the contrary, in patients who remained in remission, the mean frequency and number of double-positive IL-17A+FOXP3+ CD4+ T cells and the level of usCRP were significantly higher (p ≤ 0.01) 1 to 4 months prior to relapse. At the time of relapse, only the IL-6 and usCRP levels were significantly higher (p ≤ 0.001) compared with those patients in remission. On multivariate analysis, a high number of double-positive IL-17A+FOXP3+ CD4+ T cells (≥1.4 cells/mm3) and elevated serum usCRP (≥3.44 mg/L) were two independent factors associated with risk of relapse.ConclusionsDetection of circulating double-positive FOXP3+IL-17A+ CD4+ T cell subsets supports that T cell plasticity may reflect the inflammatory context of Crohn’s disease. Whether this subset contributes to the pathogenesis of CD relapse needs further studies.
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Metabolic regulation and function of T helper cells in neuroinflammation. Semin Immunopathol 2022; 44:581-598. [PMID: 36068310 DOI: 10.1007/s00281-022-00959-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Accepted: 07/19/2022] [Indexed: 12/12/2022]
Abstract
Neuroinflammatory conditions such as multiple sclerosis (MS) are initiated by pathogenic immune cells invading the central nervous system (CNS). Autoreactive CD4+ T helper cells are critical players that orchestrate the immune response both in MS and in other neuroinflammatory autoimmune diseases including animal models that have been developed for MS. T helper cells are classically categorized into different subsets, but heterogeneity exists within these subsets. Untangling the more complex regulation of these subsets will clarify their functional roles in neuroinflammation. Here, we will discuss how differentiation, immune checkpoint pathways, transcriptional regulation and metabolic factors determine the function of CD4+ T cell subsets in CNS autoimmunity. T cells rely on metabolic reprogramming for their activation and proliferation to meet bioenergetic demands. This includes changes in glycolysis, glutamine metabolism and polyamine metabolism. Importantly, these pathways were recently also implicated in the fine tuning of T cell fate decisions during neuroinflammation. A particular focus of this review will be on the Th17/Treg balance and intra-subset functional states that can either promote or dampen autoimmune responses in the CNS and thus affect disease outcome. An increased understanding of factors that could tip CD4+ T cell subsets and populations towards an anti-inflammatory phenotype will be critical to better understand neuroinflammatory diseases and pave the way for novel treatment paradigms.
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27
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Bednar KJ, Lee JH, Ort T. Tregs in Autoimmunity: Insights Into Intrinsic Brake Mechanism Driving Pathogenesis and Immune Homeostasis. Front Immunol 2022; 13:932485. [PMID: 35844555 PMCID: PMC9280893 DOI: 10.3389/fimmu.2022.932485] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Accepted: 05/16/2022] [Indexed: 11/16/2022] Open
Abstract
CD4+CD25highFoxp3+ regulatory T-cells (Tregs) are functionally characterized for their ability to suppress the activation of multiple immune cell types and are indispensable for maintaining immune homeostasis and tolerance. Disruption of this intrinsic brake system assessed by loss of suppressive capacity, cell numbers, and Foxp3 expression, leads to uncontrolled immune responses and tissue damage. The conversion of Tregs to a pathogenic pro-inflammatory phenotype is widely observed in immune mediated diseases. However, the molecular mechanisms that underpin the control of Treg stability and suppressive capacity are incompletely understood. This review summarizes the concepts of Treg cell stability and Treg cell plasticity highlighting underlying mechanisms including translational and epigenetic regulators that may enable translation to new therapeutic strategies. Our enhanced understanding of molecular mechanism controlling Tregs will have important implications into immune homeostasis and therapeutic potential for the treatment of immune-mediated diseases.
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28
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Nair VS, Heredia M, Samsom J, Huehn J. Impact of gut microenvironment on epigenetic signatures of intestinal T helper cell subsets. Immunol Lett 2022; 246:27-36. [DOI: 10.1016/j.imlet.2022.04.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Revised: 04/10/2022] [Accepted: 04/26/2022] [Indexed: 11/30/2022]
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29
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Lee J, Kim D, Min B. Tissue Resident Foxp3+ Regulatory T Cells: Sentinels and Saboteurs in Health and Disease. Front Immunol 2022; 13:865593. [PMID: 35359918 PMCID: PMC8963273 DOI: 10.3389/fimmu.2022.865593] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2022] [Accepted: 02/22/2022] [Indexed: 01/04/2023] Open
Abstract
Foxp3+ regulatory T (Treg) cells are a CD4 T cell subset with unique immune regulatory function that are indispensable in immunity and tolerance. Their indisputable importance has been investigated in numerous disease settings and experimental models. Despite the extensive efforts in determining the cellular and molecular mechanisms operating their functions, our understanding their biology especially in vivo remains limited. There is emerging evidence that Treg cells resident in the non-lymphoid tissues play a central role in regulating tissue homeostasis, inflammation, and repair. Furthermore, tissue-specific properties of those Treg cells that allow them to express tissue specific functions have been explored. In this review, we will discuss the potential mechanisms and key cellular/molecular factors responsible for the homeostasis and functions of tissue resident Treg cells under steady-state and inflammatory conditions.
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Affiliation(s)
- Juyeun Lee
- Department of Cardiovascular and Metabolic Sciences, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, United States
| | - Dongkyun Kim
- Department of Microbiology and Immunology, Feinberg School of Medicine, Northwestern University, Chicago, IL, United States
| | - Booki Min
- Department of Microbiology and Immunology, Feinberg School of Medicine, Northwestern University, Chicago, IL, United States
- *Correspondence: Booki Min,
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30
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Wang YJ, Li QM, Zha XQ, Luo JP. Dendrobium fimbriatum Hook polysaccharide ameliorates dextran-sodium-sulfate-induced colitis in mice via improving intestinal barrier function, modulating intestinal microbiota, and reducing oxidative stress and inflammatory responses. Food Funct 2022; 13:143-160. [PMID: 34874039 DOI: 10.1039/d1fo03003e] [Citation(s) in RCA: 44] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
The ameliorative effect of Dendrobium fimbriatum polysaccharide (cDFPW1) on ulcerative colitis (UC) was investigated using a dextran-sodium-sulfate-induced (DSS-induced) mouse model in the present study. The results showed that cDFPW1 effectively improved colitis in mice by ameliorating weight loss, disease activity index (DAI) and colonic pathological damage, and by protecting the intestinal barrier function integrity. Moreover, cDFPW1 modulated the composition and metabolism of intestinal microbiota through enhancing Romboutsia, Lactobacillus and Odoribacter, and reducing Parasutterella, Burkholderia-Caballeronia-Paraburkholderia and Acinetobacter in colitis mice. Notably, cDFPW1 significantly restored the homeostasis of Th17/regulatory T (Treg) cells and the expression of specific cytokines. Western blotting of colon tissues showed that cDFPW1 markedly up-regulated the expression of Nrf2 and inhibited the phosphorylation of NF-κB signaling. These results indicated that cDFPW1 possesses the potential of improving UC and its effect on palliating colitis may be connected with the regulation of Nrf2/NF-κB signaling.
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Affiliation(s)
- Yu-Jing Wang
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, 230009, China. .,Engineering Research Center of Bio-process, Ministry of Education, Hefei University of Technology, Hefei, 230009, China
| | - Qiang-Ming Li
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, 230009, China. .,Engineering Research Center of Bio-process, Ministry of Education, Hefei University of Technology, Hefei, 230009, China
| | - Xue-Qiang Zha
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, 230009, China. .,Engineering Research Center of Bio-process, Ministry of Education, Hefei University of Technology, Hefei, 230009, China
| | - Jian-Ping Luo
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, 230009, China. .,Engineering Research Center of Bio-process, Ministry of Education, Hefei University of Technology, Hefei, 230009, China
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31
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Porter RJ, Arends MJ, Churchhouse AMD, Din S. Inflammatory Bowel Disease-Associated Colorectal Cancer: Translational Risks from Mechanisms to Medicines. J Crohns Colitis 2021; 15:2131-2141. [PMID: 34111282 PMCID: PMC8684457 DOI: 10.1093/ecco-jcc/jjab102] [Citation(s) in RCA: 43] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The cumulative impact of chronic inflammation in patients with inflammatory bowel diseases predisposes to the development of inflammatory bowel disease-associated colorectal cancer [IBD-CRC]. Inflammation can induce mutagenesis, and the relapsing-remitting nature of this inflammation, together with epithelial regeneration, may exert selective pressure accelerating carcinogenesis. The molecular pathogenesis of IBD-CRC, termed the 'inflammation-dysplasia-carcinoma' sequence, is well described. However, the immunopathogenesis of IBD-CRC is less well understood. The impact of novel immunosuppressive therapies, which aim to achieve deep remission, is mostly unknown. Therefore, this timely review summarizes the clinical context of IBD-CRC, outlines the molecular and immunological basis of disease pathogenesis, and considers the impact of novel biological therapies.
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Affiliation(s)
- Ross J Porter
- Centre for Inflammation Research, Queen’s Medical Research Institute, University of Edinburgh, UK
- NHS Lothian Edinburgh IBD Unit, Western General Hospital, UK
| | - Mark J Arends
- Division of Pathology, Cancer Research UK Edinburgh Centre, Institute of Cancer & Genetics, Western General Hospital, University of Edinburgh, UK
| | | | - Shahida Din
- NHS Lothian Edinburgh IBD Unit, Western General Hospital, UK
- Corresponding author: Dr Shahida Din, Edinburgh IBD Unit, Anne Ferguson Building, Western General Hospital, Edinburgh EH4 2XU, UK. Tel: +44 (0) 131 537 1758;
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Frigerio S, Lartey DA, D’Haens GR, Grootjans J. The Role of the Immune System in IBD-Associated Colorectal Cancer: From Pro to Anti-Tumorigenic Mechanisms. Int J Mol Sci 2021; 22:12739. [PMID: 34884543 PMCID: PMC8657929 DOI: 10.3390/ijms222312739] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2021] [Revised: 11/18/2021] [Accepted: 11/23/2021] [Indexed: 12/12/2022] Open
Abstract
Patients with inflammatory bowel disease (IBD) have increased incidence of colorectal cancer (CRC). IBD-associated cancer follows a well-characterized sequence of intestinal epithelial changes, in which genetic mutations and molecular aberrations play a key role. IBD-associated cancer develops against a background of chronic inflammation and pro-inflammatory immune cells, and their products contribute to cancer development and progression. In recent years, the effect of the immunosuppressive microenvironment in cancer development and progression has gained more attention, mainly because of the unprecedented anti-tumor effects of immune checkpoint inhibitors in selected groups of patients. Even though IBD-associated cancer develops in the background of chronic inflammation which is associated with activation of endogenous anti-inflammatory or suppressive mechanisms, the potential role of an immunosuppressive microenvironment in these cancers is largely unknown. In this review, we outline the role of the immune system in promoting cancer development in chronic inflammatory diseases such as IBD, with a specific focus on the anti-inflammatory mechanisms and suppressive immune cells that may play a role in IBD-associated tumorigenesis.
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Affiliation(s)
- Sofía Frigerio
- Department of Gastroenterology and Hepatology, Amsterdam University Medical Centers, Location AMC, 1105 AZ Amsterdam, The Netherlands; (S.F.); (D.A.L.); (G.R.D.)
- Tytgat Institute for Liver and Intestinal Research, Amsterdam University Medical Centers, Location AMC, 1105 AZ Amsterdam, The Netherlands
| | - Dalia A. Lartey
- Department of Gastroenterology and Hepatology, Amsterdam University Medical Centers, Location AMC, 1105 AZ Amsterdam, The Netherlands; (S.F.); (D.A.L.); (G.R.D.)
- Tytgat Institute for Liver and Intestinal Research, Amsterdam University Medical Centers, Location AMC, 1105 AZ Amsterdam, The Netherlands
| | - Geert R. D’Haens
- Department of Gastroenterology and Hepatology, Amsterdam University Medical Centers, Location AMC, 1105 AZ Amsterdam, The Netherlands; (S.F.); (D.A.L.); (G.R.D.)
| | - Joep Grootjans
- Department of Gastroenterology and Hepatology, Amsterdam University Medical Centers, Location AMC, 1105 AZ Amsterdam, The Netherlands; (S.F.); (D.A.L.); (G.R.D.)
- Tytgat Institute for Liver and Intestinal Research, Amsterdam University Medical Centers, Location AMC, 1105 AZ Amsterdam, The Netherlands
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Abstract
Current practice in IBD is to classify patients based on clinical signs and symptoms and provide treatments accordingly. However, the response of IBD patients to available treatments is highly variable, highlighting clinically significant heterogeneity among patients. Thus, more accurate patient stratification is urgently needed to more effectively target therapeutic interventions to specific patients. Here we review the degree of heterogeneity in IBD, discussing how the microbiota, genetics, and immune system may contribute to the variation among patients. We highlight how molecular heterogeneity may relate to clinical phenotype, but in other situations may be independent of clinical phenotype, encouraging future studies to fill the gaps. Finally, we discuss novel stratification methodologies as a foundation for precision medicine, in particular a novel stratification strategy based on conserved genes across species. All of these dimensions of heterogeneity have potential to provide strategies for patient stratification and move IBD practice towards personalised medicine.
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Affiliation(s)
- Katja A Selin
- Division of Immunology and Allergy, Department of Medicine, Solna, Karolinska Institutet and University Hospital, Stockholm, Sweden
- Center for Molecular Medicine, Karolinska Institutet, Stockholm, Sweden
- Gastroenterology Unit, Patient Area Gastroenterology, Dermatovenereology and Rheumatology, Karolinska University Hospital, Stockholm, Sweden
- Department of Medicine, Solna, Division of Clinical Medicine, Karolinska Institutet, Solna, Sweden
| | - Charlotte R H Hedin
- Gastroenterology Unit, Patient Area Gastroenterology, Dermatovenereology and Rheumatology, Karolinska University Hospital, Stockholm, Sweden
- Department of Medicine, Solna, Division of Clinical Medicine, Karolinska Institutet, Solna, Sweden
| | - Eduardo J Villablanca
- Division of Immunology and Allergy, Department of Medicine, Solna, Karolinska Institutet and University Hospital, Stockholm, Sweden
- Center for Molecular Medicine, Karolinska Institutet, Stockholm, Sweden
- Department of Medicine, Solna, Division of Clinical Medicine, Karolinska Institutet, Solna, Sweden
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Porphyromonas gingivalis exacerbates ulcerative colitis via Porphyromonas gingivalis peptidylarginine deiminase. Int J Oral Sci 2021; 13:31. [PMID: 34593756 PMCID: PMC8484350 DOI: 10.1038/s41368-021-00136-2] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Revised: 08/18/2021] [Accepted: 08/29/2021] [Indexed: 11/09/2022] Open
Abstract
Ulcerative Colitis (UC) has been reported to be related to Porphyromonas gingivalis (P. gingivalis). Porphyromonas gingivalis peptidylarginine deiminase (PPAD), a virulence factor released by P. gingivalis, is known to induce inflammatory responses. To explore the pathological relationships between PPAD and UC, we used homologous recombination technology to construct a P. gingivalis strain in which the PPAD gene was deleted (Δppad) and a Δppad strain in which the PPAD gene was restored (comΔppad). C57BL/6 mice were orally gavaged with saline, P. gingivalis, Δppad, or comΔppad twice a week for the entire 40 days (days 0-40), and then, UC was induced by dextran sodium sulfate (DSS) solution for 10 days (days 31-40). P. gingivalis and comΔppad exacerbated DDS-induced colitis, which was determined by assessing the parameters of colon length, disease activity index, and histological activity index, but Δppad failed to exacerbate DDS-induced colitis. Flow cytometry and ELISA revealed that compared with Δppad, P. gingivalis, and comΔppad increased T helper 17 (Th17) cell numbers and interleukin (IL)-17 production but decreased regulatory T cells (Tregs) numbers and IL-10 production in the spleens of mice with UC. We also cocultured P. gingivalis, Δppad, or comΔppad with T lymphocytes in vitro and found that P. gingivalis and comΔppad significantly increased Th17 cell numbers and decreased Treg cell numbers. Immunofluorescence staining of colon tissue paraffin sections also confirmed these results. The results suggested that P. gingivalis exacerbated the severity of UC in part via PPAD.
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Linares R, Francés R, Gutiérrez A, Juanola O. Bacterial Translocation as Inflammatory Driver in Crohn's Disease. Front Cell Dev Biol 2021; 9:703310. [PMID: 34557484 PMCID: PMC8452966 DOI: 10.3389/fcell.2021.703310] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Accepted: 07/30/2021] [Indexed: 12/26/2022] Open
Abstract
Crohn’s disease (CD) is a chronic inflammatory disorder of the gastrointestinal tract responsible for intestinal lesions. The multifactorial etiology attributed to CD includes a combination of environmental and host susceptibility factors, which result in an impaired host–microbe gut interaction. Bacterial overgrowth and dysbiosis, increased intestinal barrier permeability, and altered inflammatory responses in patients with CD have been described in the past. Those events explain the pathogenesis of luminal translocation of bacteria or its products into the blood, a frequent event in CD, which, in turn, favors a sustained inflammatory response in these patients. In this review, we navigate through the interaction between bacterial antigen translocation, permeability of the intestinal barrier, immunologic response of the host, and genetic predisposition as a combined effect on the inflammatory response observed in CD. Several lines of evidence support that translocation of bacterial products leads to uncontrolled inflammation in CD patients, and as a matter of fact, the presence of gut bacterial genomic fragments at a systemic level constitutes a marker for increased risk of relapse among CD patients. Also, the significant percentage of CD patients who lose response to biologic therapies may be influenced by the translocation of bacterial products, which are well-known drivers of proinflammatory cytokine production by host immune cells. Further mechanistic studies evaluating cellular and humoral immune responses, gut microbiota alterations, and genetic predisposition will help clinicians to better control and personalize the management of CD patients in the future.
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Affiliation(s)
- Raquel Linares
- Hepatic and Intestinal Immunobiology Group, Department of Clinical Medicine, Miguel Hernández University, San Juan de Alicante, Spain
| | - Rubén Francés
- Hepatic and Intestinal Immunobiology Group, Department of Clinical Medicine, Miguel Hernández University, San Juan de Alicante, Spain.,CIBERehd, Instituto de Salud Carlos III, Madrid, Spain.,Instituto ISABIAL, Hospital General Universitario de Alicante, Alicante, Spain
| | - Ana Gutiérrez
- CIBERehd, Instituto de Salud Carlos III, Madrid, Spain.,Instituto ISABIAL, Hospital General Universitario de Alicante, Alicante, Spain.,Servicio de Medicina Digestiva, Hospital General Universitario de Alicante, Alicante, Spain
| | - Oriol Juanola
- Translational Research Laboratory, Gastroenterology and Hepatology, Ente Ospedaliero Cantonale, Lugano, Switzerland.,Faculty of Biomedical Sciences, Universitá della Svizzera Italiana, Lugano, Switzerland
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Shen X, Zhang H, Xie H, Chen L, Li S, Zheng J, Chai R, Wang Z, Zang Y, He S. Reduced CCR6 +IL-17A +Treg Cells in Blood and CCR6-Dependent Accumulation of IL-17A +Treg Cells in Lungs of Patients With Allergic Asthma. Front Immunol 2021; 12:710750. [PMID: 34497608 PMCID: PMC8419235 DOI: 10.3389/fimmu.2021.710750] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2021] [Accepted: 08/05/2021] [Indexed: 12/12/2022] Open
Abstract
Human regulatory T (Treg) cells play a central role in controlling allergic inflammation in the airways. A reduced number of peripheral Treg cells and decreased suppressive function have been previously reported in the pathogenesis of allergic asthma. However, the characteristic role of specific Treg cell subsets and their mechanisms in the pathogenesis of allergic asthma remain unclear. In this study, we examined the proportion of different Treg cell subsets in both healthy subjects and patients with allergic asthma using flow cytometry and single-cell RNA sequencing. The migration function of the cells was compared using cell sorting and Transwell experiments. Furthermore, two allergen-challenged mouse models and a cell transfer experiment were used to examine the role of these Treg subsets. We found that the proportion of CD25+Foxp3+CD127- Treg cells in the peripheral blood of patients with allergic asthma was lower than in those of healthy subjects. Furthermore, the circulating Treg cells expressed lower levels of CCR6 and IL-17 compared with healthy subjects. The chemokine from the airway mucosa, CCL20, was abundantly expressed, and Transwell experiments further proved that this chemokine promoted CCR6+ Treg cell migration in vitro. A mouse model induced by house dust mite (HDM) revealed that the number of CCR6+ Treg cells in the lung tissue increased remarkably. The incidence of allergic asthma may be related to an increase in Treg cells secreting IL-17 in the lung tissue. Recruited CCR6+ Treg cells are likely to differentiate into Th17-like cells under the Th17 environment present in the lungs. IL-17 derived from Th17-like cells could be associated with the pathology of allergic asthma by promoting Th17 responses, thereby favoring HDM-induced asthma exacerbations.
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Affiliation(s)
- Xiaokun Shen
- Institute of Translation Medicine, First Affiliated Hospital of Jinzhou Medical University, Jinzhou, China
| | - Huiyun Zhang
- Institute of Translation Medicine, Shenyang Medical College, Shenyang, China
| | - Hua Xie
- People's Liberation Army (PLA) Center of Respiratory and Allergic Disease Diagnosing Management, General Hospital of Shenyang Military Area Command, Shenyang, China
| | - Liping Chen
- Respiratory Medicine Department, Second Affiliated Hospital of Shenyang Medical College, Shenyang, China
| | - Shinan Li
- Institute of Translation Medicine, First Affiliated Hospital of Jinzhou Medical University, Jinzhou, China
| | - Junjuan Zheng
- State Key Laboratory of Genetic Resources and Evolution/Key Laboratory of Healthy Aging Research of Yunnan Province, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, China
| | - Ruonan Chai
- People's Liberation Army (PLA) Center of Respiratory and Allergic Disease Diagnosing Management, General Hospital of Shenyang Military Area Command, Shenyang, China
| | - Zhao Wang
- Institute of Translation Medicine, First Affiliated Hospital of Jinzhou Medical University, Jinzhou, China
| | - Yanyan Zang
- Institute of Translation Medicine, First Affiliated Hospital of Jinzhou Medical University, Jinzhou, China
| | - Shaoheng He
- Institute of Translation Medicine, First Affiliated Hospital of Jinzhou Medical University, Jinzhou, China.,Institute of Translation Medicine, Shenyang Medical College, Shenyang, China
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Chen YH, Lightman S, Calder VL. CD4 + T-Cell Plasticity in Non-Infectious Retinal Inflammatory Disease. Int J Mol Sci 2021; 22:ijms22179584. [PMID: 34502490 PMCID: PMC8431487 DOI: 10.3390/ijms22179584] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Revised: 08/27/2021] [Accepted: 08/31/2021] [Indexed: 01/14/2023] Open
Abstract
Non-infectious uveitis (NIU) is a potentially sight-threatening disease. Effector CD4+ T cells, especially interferon-γ-(IFNγ) producing Th1 cells and interleukin-17-(IL-17) producing Th17 cells, are the major immunopathogenic cells, as demonstrated by adoptive transfer of disease in a model of experimental autoimmune uveitis (EAU). CD4+FoxP3+CD25+ regulatory T cells (Tregs) were known to suppress function of effector CD4+ T cells and contribute to resolution of disease. It has been recently reported that some CD4+ T-cell subsets demonstrate shared phenotypes with another CD4+ T-cell subset, offering the potential for dual function. For example, Th17/Th1 (co-expressing IFNγ and IL-17) cells and Th17/Treg (co-expressing IL-17 and FoxP3) cells have been identified in NIU and EAU. In this review, we have investigated the evidence as to whether these ‘plastic CD4+ T cells’ are functionally active in uveitis. We conclude that Th17/Th1 cells are generated locally, are resistant to the immunosuppressive effects of steroids, and contribute to early development of EAU. Th17/Treg cells produce IL-17, not IL-10, and act similar to Th17 cells. These cells were considered pathogenic in uveitis. Future studies are needed to better clarify their function, and in the future, these cell subsets may in need to be taken into consideration for designing treatment strategies for disease.
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Affiliation(s)
- Yi-Hsing Chen
- UCL Institute of Ophthalmology, University College London, London EC1V 9EL, UK; (Y.-H.C.); (S.L.)
- Department of Ophthalmology, Chang Gung Memorial Hospital, Taoyuan 33305, Taiwan
- College of Medicine, Chang Gung University, Taoyuan 33302, Taiwan
| | - Sue Lightman
- UCL Institute of Ophthalmology, University College London, London EC1V 9EL, UK; (Y.-H.C.); (S.L.)
| | - Virginia L. Calder
- UCL Institute of Ophthalmology, University College London, London EC1V 9EL, UK; (Y.-H.C.); (S.L.)
- NIHR Biomedical Research Centre, Moorfields Eye Hospital NHS Foundation Trust, London EC1V 2PD, UK
- Correspondence:
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Truong SL, Chin J, Liew DFL, Zahir SF, Ryan EG, Rubel D, Radford-Smith G, Robinson PC. Systematic Review and Meta-Analysis of Inflammatory Bowel Disease Adverse Events with Anti-Interleukin 17A Agents and Tumor Necrosis Factor Inhibitors in Rheumatic Disease and Skin Psoriasis. Rheumatol Ther 2021; 8:1603-1616. [PMID: 34449067 PMCID: PMC8572260 DOI: 10.1007/s40744-021-00360-6] [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: 07/17/2021] [Accepted: 08/11/2021] [Indexed: 11/21/2022] Open
Abstract
Introduction The aim of this work is to perform a systematic review and meta-analysis of anti-tumor necrosis factor (anti-TNF) and anti-interleukin-17 (anti-IL-17) trials for spondyloarthritis, psoriatic arthritis, and psoriasis comparing rates of inflammatory bowel disease (IBD) events compared to placebo. Methods MEDLINE, EMBASE, and The Cochrane Library were searched for double-blind, randomized placebo-controlled anti-TNF and anti-IL-17 trials of included diseases. Inflammatory bowel disease events from the RCT period were pooled and meta-analyzed using statistical methods suitable for low-event-rate meta-analysis (Peto’s, Mantel–Haenszel, hypergeometric-normal model, and Shuster-Guo-Skyler). When observed data were insufficient, we performed an exploratory sensitivity analysis to compare methods. Results We identified 9551 original papers, and included 96 publications: 65 anti-TNF and 31 anti-IL-17 trials, containing 21 new and 12 flare IBD events in 28,209 participants. New IBD on anti-IL-17 occurred 0.23/100 patient-years (PY) in psoriasis, 0.61/100 PY in PsA and 1.63/100 PY in spondyloarthritis, rates similar to observational cohorts, and less commonly on anti-TNF (0/100 PY, 0/100 PY, 0.32/100 PY, respectively). No evidence of difference between groups was found, with wide CI from many pooled counts of zero, especially in placebo arms. Conclusions IBD events were rare, occurring at rates similar to biologic-naive groups. We could not find statistically significant differences in risk of new or recurrent IBD between treatment and control groups using selected meta-analytical methods for low event rate scenarios. Meta-analyses of this topic require more IBD events, ideally without pooling heterogeneous groups. Larger, thoroughly reported trials with systematic and detailed safety reporting are required to improve risk estimation and to make accurate inferences. Supplementary Information The online version contains supplementary material available at 10.1007/s40744-021-00360-6.
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Affiliation(s)
- Steven L Truong
- Department of Medicine, Griffith University, Brisbane, QLD, Australia.,Coast Joint Care, Maroochydore, QLD, Australia
| | - Jasmine Chin
- Faculty of Medicine, University of Queensland, Brisbane, QLD, Australia
| | - David F L Liew
- Department of Medicine, University of Melbourne, Parkville, Australia.,Department of Clinical Pharmacology and Therapeutics, Austin Health, Heidelberg, VIC, Australia.,Department of Rheumatology, Austin Health, Heidelberg, VIC, Australia
| | - Syeda Farah Zahir
- QCIF Facility for Advanced Bioinformatics, Institute for Molecular Bioscience, The University of Queensland, Brisbane, QLD, Australia
| | - Elizabeth G Ryan
- Faculty of Medicine, University of Queensland, Brisbane, QLD, Australia.,QCIF Facility for Advanced Bioinformatics, Institute for Molecular Bioscience, The University of Queensland, Brisbane, QLD, Australia
| | - Diana Rubel
- Australian National University and Woden Dermatology, Canberra, Australia
| | | | - Philip C Robinson
- Faculty of Medicine, University of Queensland, Brisbane, QLD, Australia. .,Royal Brisbane and Women's Hospital, Metro North Hospital and Health Service, Brisbane, QLD, Australia. .,School of Clinical Medicine, University of Queensland, Royal Brisbane and Women's Hospital, Bowen Bridge Road, Herston, QLD, 4006, Australia.
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Abstract
The focus of this review is to examine the role of ITK signaling in multiple diseases and investigate the clinical potential of ITK inhibition. The diseases and potential interventions reviewed include T cell-derived malignancies as well as other neoplastic diseases, allergic diseases such as asthma and atopic dermatitis, certain infectious diseases, several autoimmune disorders such as rheumatoid arthritis and psoriasis, and finally the use of ITK inhibition in both solid organ and bone marrow transplantation recipients.
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Affiliation(s)
- Samuel Weeks
- Department of Microbiology and Immunology, SUNY Upstate Medical University, 766 Irving Avenue Weiskotten Hall Suite 2281, Syracuse, NY 13210, USA
| | - Rebecca Harris
- Department of Microbiology and Immunology, SUNY Upstate Medical University, 766 Irving Avenue Weiskotten Hall Suite 2281, Syracuse, NY 13210, USA
| | - Mobin Karimi
- Department of Microbiology and Immunology, SUNY Upstate Medical University, 766 Irving Avenue Weiskotten Hall Suite 2281, Syracuse, NY 13210, USA
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Negi S, Saini S, Tandel N, Sahu K, Mishra RP, Tyagi RK. Translating Treg Therapy for Inflammatory Bowel Disease in Humanized Mice. Cells 2021; 10:cells10081847. [PMID: 34440615 PMCID: PMC8393385 DOI: 10.3390/cells10081847] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Revised: 07/06/2021] [Accepted: 07/07/2021] [Indexed: 02/07/2023] Open
Abstract
Crohn's disease and ulcerative colitis, two major forms of inflammatory bowel disease (IBD) in humans, afflicted in genetically predisposed individuals due to dysregulated immune response directed against constituents of gut flora. The defective immune responses mounted against the regulatory mechanisms amplify and maintain the IBD-induced mucosal inflammation. Therefore, restoring the balance between inflammatory and anti-inflammatory immunepathways in the gut may contribute to halting the IBD-associated tissue-damaging immune response. Phenotypic and functional characterization of various immune-suppressive T cells (regulatory T cells; Tregs) over the last decade has been used to optimize the procedures for in vitro expansion of these cells for developing therapeutic interventional strategies. In this paper, we review the mechanisms of action and functional importance of Tregs during the pathogenesis of IBD and modulating the disease induced inflammation as well as role of mouse models including humanized mice repopulated with the human immune system (HIS) to study the IBD. "Humanized" mouse models provide new tools to analyze human Treg ontogeny, immunobiology, and therapy and the role of Tregs in developing interventional strategies against IBD. Overall, humanized mouse models replicate the human conditions and prove a viable tool to study molecular functions of human Tregs to harness their therapeutic potential.
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MESH Headings
- Adoptive Transfer
- Animals
- Colitis, Ulcerative/genetics
- Colitis, Ulcerative/immunology
- Colitis, Ulcerative/metabolism
- Colitis, Ulcerative/therapy
- Crohn Disease/genetics
- Crohn Disease/immunology
- Crohn Disease/metabolism
- Crohn Disease/therapy
- Disease Models, Animal
- Hematopoietic Stem Cell Transplantation
- Humans
- Mice, Transgenic
- T-Lymphocytes, Regulatory/immunology
- T-Lymphocytes, Regulatory/metabolism
- T-Lymphocytes, Regulatory/transplantation
- Transplantation, Heterologous
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Affiliation(s)
- Sushmita Negi
- Biomedical Parasitology and Nano-Immunology Lab, Division of Cell Biology and Immunology, CSIR-Institute of Microbial Technology (IMTECH), Chandigarh 160036, India; (S.N.); (S.S.); (K.S.)
- BERPDC Department, CSIR-Institute of Microbial Technology (IMTECH), Chandigarh 160036, India
| | - Sheetal Saini
- Biomedical Parasitology and Nano-Immunology Lab, Division of Cell Biology and Immunology, CSIR-Institute of Microbial Technology (IMTECH), Chandigarh 160036, India; (S.N.); (S.S.); (K.S.)
| | - Nikunj Tandel
- Institute of Science, Nirma University, Ahmedabad, Gujarat 382481, India;
| | - Kiran Sahu
- Biomedical Parasitology and Nano-Immunology Lab, Division of Cell Biology and Immunology, CSIR-Institute of Microbial Technology (IMTECH), Chandigarh 160036, India; (S.N.); (S.S.); (K.S.)
| | - Ravi P.N. Mishra
- BERPDC Department, CSIR-Institute of Microbial Technology (IMTECH), Chandigarh 160036, India
- Correspondence: (R.P.N.M.); or (R.K.T.)
| | - Rajeev K. Tyagi
- Biomedical Parasitology and Nano-Immunology Lab, Division of Cell Biology and Immunology, CSIR-Institute of Microbial Technology (IMTECH), Chandigarh 160036, India; (S.N.); (S.S.); (K.S.)
- Correspondence: (R.P.N.M.); or (R.K.T.)
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The Roles of IL-17, IL-21, and IL-23 in the Helicobacter pylori Infection and Gastrointestinal Inflammation: A Review. Toxins (Basel) 2021; 13:toxins13050315. [PMID: 33924897 PMCID: PMC8147029 DOI: 10.3390/toxins13050315] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2021] [Revised: 04/19/2021] [Accepted: 04/21/2021] [Indexed: 12/17/2022] Open
Abstract
Although millions of people have been infected by Helicobacter pylori (H. pylori), only a small proportion of infected individuals will develop adverse outcomes, ranging from chronic gastritis to gastric cancer. Advanced development of the disease has been well-linked with chronic inflammation, which is significantly impacted by the adaptive and humoral immunity response. From the perspective of cellular immunity, this review aims to clarify the intricate axis between IL-17, IL-21, and IL-23 in H. pylori-related diseases and the pathogenesis of inflammatory gastrointestinal diseases. CD4+ helper T (Th)-17 cells, with the hallmark pleiotropic cytokine IL-17, can affect antimicrobial activity and the pathogenic immune response in the gut environment. These circumstances cannot be separated, as the existence of affiliated cytokines, including IL-21 and IL-23, help maintain Th17 and accommodate humoral immune cells. Comprehensive understanding of the dynamic interaction between molecular host responses in H. pylori-related diseases and the inflammation process may facilitate further development of immune-based therapy.
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Abstract
Autoimmune diseases are primary immune diseases in which autoreactive antibodies or sensitized lymphocytes destroy and damage tissue and cellular components, resulting in tissue damage and organ dysfunction. Helper T cells may be involved in the pathogenesis of autoimmune diseases under certain conditions. This review summarizes recent research on the role of helper T cells in autoimmune diseases from two aspects, helper T cell-mediated production of autoantibodies by B cells and helper T cell-induced activation of abnormal lymphocytes, and provides ideas for the treatment of autoimmune diseases. The abnormal expression of helper T cells promotes the differentiation of B cells that produce autoantibodies, which leads to the development of different diseases. Among them, abnormal expression of Th2 cells and T follicular helper cells is more likely to cause antibody-mediated autoimmune diseases. In addition, abnormal activation of helper T cells also mediates autoimmune diseases through the production of abnormal cytokines and chemokines. Helper T cells play an essential role in the pathogenesis of autoimmune diseases, and a full understanding of their role in autoimmune diseases is helpful for providing ideas for the treatment of autoimmune diseases.
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Th17 Cells in Inflammatory Bowel Disease: Cytokines, Plasticity, and Therapies. J Immunol Res 2021; 2021:8816041. [PMID: 33553436 PMCID: PMC7846404 DOI: 10.1155/2021/8816041] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Revised: 12/15/2020] [Accepted: 01/12/2021] [Indexed: 12/22/2022] Open
Abstract
Autoimmune diseases (such as rheumatoid arthritis, asthma, autoimmune bowel disease) are a complex disease. Improper activation of the immune system or imbalance of immune cells can cause the immune system to transform into a proinflammatory state, leading to autoimmune pathological damage. Recent studies have shown that autoimmune diseases are closely related to CD4+ T helper cells (Th). The original CD4 T cells will differentiate into different T helper (Th) subgroups after activation. According to their cytokines, the types of Th cells are different to produce lineage-specific cytokines, which play a role in autoimmune homeostasis. When Th differentiation and its cytokines are not regulated, it will induce autoimmune inflammation. Autoimmune bowel disease (IBD) is an autoimmune disease of unknown cause. Current research shows that its pathogenesis is closely related to Th17 cells. This article reviews the role and plasticity of the upstream and downstream cytokines and signaling pathways of Th17 cells in the occurrence and development of autoimmune bowel disease and summarizes the new progress of IBD immunotherapy.
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Abstract
Mucosal surfaces are distinctive sites exposed to environmental, dietary, and microbial antigens. Particularly in the gut, the host continuously actively adapts via complex interactions between the microbiota and dietary compounds and immune and other tissue cells. Regulatory T cells (Tregs) are critical for tuning the intestinal immune response to self- and non-self-antigens in the intestine. Its importance in intestinal homeostasis is illustrated by the onset of overt inflammation caused by deficiency in Treg generation, function, or stability in the gut. A substantial imbalance in Tregs has been observed in intestinal tissue during pathogenic conditions, when a tightly regulated and equilibrated system becomes dysregulated and leads to unimpeded and chronic immune responses. In this chapter, we compile and critically discuss the current knowledge on the key factors that promote Treg-mediated tolerance in the gut, such as those involved in intestinal Treg differentiation, specificity and suppressive function, and their immunophenotype during health and disease. We also discuss the current state of knowledge on Treg dysregulation in human intestine during pathological states such as inflammatory bowel disease (IBD), necrotizing enterocolitis (NEC), graft-versus-host disease (GVHD), and colorectal cancer (CRC), and how that knowledge is guiding development of Treg-targeted therapies to treat or prevent intestinal disorders.
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Miró L, Amat C, Polo J, Moretó M, Pérez-Bosque A. Anti-inflammatory effects of animal plasma protein supplementation in mice undergoing simultaneous gut and lung inflammation. FOOD AGR IMMUNOL 2020. [DOI: 10.1080/09540105.2020.1786669] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
Affiliation(s)
- L. Miró
- Departament de Bioquímica i Fisiologia (Secció de Fisiologia), Facultat de Farmàcia i Ciències de l’Alimentació and Institut de Nutrició i Seguretat Alimentària, Universitat de Barcelona, Barcelona, Spain
- APC Europe-S.L.U., Granollers, Spain
| | - C. Amat
- Departament de Bioquímica i Fisiologia (Secció de Fisiologia), Facultat de Farmàcia i Ciències de l’Alimentació and Institut de Nutrició i Seguretat Alimentària, Universitat de Barcelona, Barcelona, Spain
| | - J. Polo
- APC Europe-S.L.U., Granollers, Spain
| | - M. Moretó
- Departament de Bioquímica i Fisiologia (Secció de Fisiologia), Facultat de Farmàcia i Ciències de l’Alimentació and Institut de Nutrició i Seguretat Alimentària, Universitat de Barcelona, Barcelona, Spain
| | - A. Pérez-Bosque
- Departament de Bioquímica i Fisiologia (Secció de Fisiologia), Facultat de Farmàcia i Ciències de l’Alimentació and Institut de Nutrició i Seguretat Alimentària, Universitat de Barcelona, Barcelona, Spain
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Retinoid-Related Orphan Receptor RORγt in CD4 + T-Cell-Mediated Intestinal Homeostasis and Inflammation. THE AMERICAN JOURNAL OF PATHOLOGY 2020; 190:1984-1999. [PMID: 32735890 DOI: 10.1016/j.ajpath.2020.07.010] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2019] [Revised: 07/13/2020] [Accepted: 07/17/2020] [Indexed: 02/07/2023]
Abstract
Retinoic acid-related orphan receptor (ROR)-γt, the master transcription factor of the Th17 subset of CD4+ Th cells, is a promising target for treating a host of autoimmune diseases. RORγt plays a vital role in the pathogenesis of inflammatory bowel diseases-Crohn disease and ulcerative colitis-caused by untoward reactivity of the immune system to the components of the intestinal microbiome. The mammalian intestinal tract is a highly complex and compartmentalized organ with specialized functions, and is a privileged site for the generation of both peripherally induced regulatory CD4+ T cells (Tregs) and effector Th17 cells. As Th17 cells can be proinflammatory in nature, the equilibrium between effector Th17 and Treg cells is crucial for balancing intestinal homeostasis and inflammation. Recent findings suggest that RORγt, in addition to Th17 cells, is also expressed in peripherally induced, colonic regulatory CD4+ T cells. Therefore, RORγt is expressed in both effector and regulatory subsets of CD4+ T cells in the intestine. The present review discusses the role of RORγt in cellular and molecular differentiation of Th17 and Treg, and examines how targeting RORγt in inflammatory bowel disease therapy could influence the development of these two diverse subsets of immune cells with opposing functions.
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Cordes F, Foell D, Ding JN, Varga G, Bettenworth D. Differential regulation of JAK/STAT-signaling in patients with ulcerative colitis and Crohn’s disease. World J Gastroenterol 2020; 26:4055-4075. [PMID: 32821070 PMCID: PMC7403801 DOI: 10.3748/wjg.v26.i28.4055] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/03/2020] [Revised: 05/24/2020] [Accepted: 06/17/2020] [Indexed: 02/06/2023] Open
Abstract
In 2018, the pan-Janus kinase (JAK) inhibitor tofacitinib was launched for the treatment of ulcerative colitis (UC). Although tofacitinib has proven efficacious in patients with active UC, it failed in patients with Crohn’s disease (CD). This finding strongly hints at a different contribution of JAK signaling in both entities. Here, we review the current knowledge on the interplay between the JAK/signal transducer and activator of transcription (STAT) pathway and inflammatory bowel diseases (IBD). In particular, we provide a detailed overview of the differences and similarities of JAK/STAT-signaling in UC and CD, highlight the impact of the JAK/STAT pathway in experimental colitis models and summarize the published evidence on JAK/STAT-signaling in immune cells of IBD as well as the genetic association between the JAK/STAT pathway and IBD. Finally, we describe novel treatment strategies targeting JAK/STAT inhibition in UC and CD and comment on the limitations and challenges of the new drug class.
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Affiliation(s)
- Friederike Cordes
- Department of Medicine B, Gastroenterology and Hepatology, University Hospital Münster, Münster D-48149, Germany
| | - Dirk Foell
- Department of Pediatric Rheumatology and Immunology, University Children’s Hospital Münster, Münster D-48149, Germany
| | - John Nik Ding
- Department of Gastroenterology, St. Vincent’s Hospital, Melbourne 3002, Australia
- Department of Medicine, University of Melbourne, East Melbourne 3002, Australia
| | - Georg Varga
- Department of Pediatric Rheumatology and Immunology, University Children’s Hospital Münster, Münster D-48149, Germany
| | - Dominik Bettenworth
- Department of Medicine B, Gastroenterology and Hepatology, University Hospital Münster, Münster D-48149, Germany
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48
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Ayroldi E, Grohmann U. Exemplifying complexity of immune suppression by a "canonical" speech: A glimpse into TNFRSF-activated signaling pathways in Treg cells. Eur J Immunol 2020; 50:944-948. [PMID: 32428262 DOI: 10.1002/eji.202048711] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2020] [Indexed: 01/03/2023]
Abstract
Regulatory T (Treg) cells are crucial mediators of immune tolerance suppressing self-reactive T cells and preventing autoimmune diseases. Besides activation of the T cell receptor (TCR), empowerment of Treg cell functions requires co-accessory signals, such as those released by the TNF receptor superfamily (TNFRSF) that, however, can also promote immunostimulatory responses when engaged by effector T cells. In this issue of European Journal of Immunology, Lubrano di Ricco et al. [Eur. J. Immunol. 2020. 50: 972-985] have taken a closer look at the important question of the functional meaning of TNFRSF-activated signaling pathways in Treg cells. They have demonstrated that costimulation by TNFR2, 4-1BB, GITR, DR3, but not OX40 in mouse Foxp3+ Treg cells activates the same and unique signaling pathway, i.e., canonical NF-κB, which in turn leads to Foxp3 gene upregulation, cell expansion in vitro and in vivo, and suppressive activity in an experimental model of colitis. Moreover, induction of markers of T helper 2 (Th2) and Th17 as well as of genes encoding proteins involved in noncanonical NF-κΒ was also observed. We here discussed how these findings further highlight the emerging concept of Treg cell plasticity in immune tolerance.
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Affiliation(s)
- Emira Ayroldi
- Department of Medicine, University of Perugia, Perugia, Italy
| | - Ursula Grohmann
- Department of Experimental Medicine, University of Perugia, Perugia, Italy
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Chiba T, Endo M, Miura S, Hayashi Y, Asakura Y, Oyama K, Matsumoto T. Regulatory T cells in Crohn's disease following anti-TNF-α therapy. JGH Open 2020; 4:378-381. [PMID: 32514440 PMCID: PMC7273727 DOI: 10.1002/jgh3.12259] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2019] [Revised: 08/21/2019] [Accepted: 08/27/2019] [Indexed: 02/05/2023]
Abstract
BACKGROUND AND AIM Anti-tumor necrosis factor alpha (TNF-α) therapy is an effective therapy for Crohn's disease (CD). We investigated FoxP3+ and CD127- regulatory T cells (Tregs) before and after administration of anti-TNF-α therapy in CD. METHODS Eight patients with active CD who had received anti-TNF-α antibodies were enrolled. Treatment responses were followed by physical examination and Crohn's disease activity index (CDAI) scoring before and 2 weeks after the initial administration of anti-TNF-α antibodies. Peripheral blood samples were collected before and 2 weeks after treatment. White blood cell count and serum levels of C-reactive protein (CRP) and albumin were measured. FoxP3+ expression and CD127- Tregs were measured by fluorescence activated cell sorting (FACS) analysis of whole blood samples. RESULTS Median values of CDAI decreased significantly after treatment. The proportion of FoxP3+ Tregs increased significantly after treatment. There was a significant negative correlation between ΔCD127- Tregs and Δlymphocyte. CONCLUSIONS Anti-TNF-α therapy would enhance Tregs, which may account for the mechanism underlying the positive effect of the anti-TNF-α treatment in CD patients.
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Affiliation(s)
- Toshimi Chiba
- Division of Internal Medicine, Department of Oral MedicineIwate Medical UniversityMoriokaJapan
| | - Mikiya Endo
- Department of PediatricsIwate Medical UniversityMoriokaJapan
| | - Shoko Miura
- Department of PediatricsIwate Medical UniversityMoriokaJapan
| | - Yuko Hayashi
- Department of PediatricsIwate Medical UniversityMoriokaJapan
| | - Yoshiko Asakura
- Department of PediatricsIwate Medical UniversityMoriokaJapan
| | - Kotaro Oyama
- Department of PediatricsIwate Medical UniversityMoriokaJapan
| | - Takayuki Matsumoto
- Division of Gastroenterology, Department of Internal MedicineIwate Medical UniversityMoriokaJapan
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50
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Interplay between Cytokine Circuitry and Transcriptional Regulation Shaping Helper T Cell Pathogenicity and Plasticity in Inflammatory Bowel Disease. Int J Mol Sci 2020; 21:ijms21093379. [PMID: 32403220 PMCID: PMC7247009 DOI: 10.3390/ijms21093379] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Revised: 05/07/2020] [Accepted: 05/09/2020] [Indexed: 12/12/2022] Open
Abstract
Inflammatory bowel disease (IBD) is a chronic disorder manifested as Crohn’s disease (CD) and ulcerative colitis (UC) characterized by intestinal inflammation and involves a dysregulated immune response against commensal microbiota through the activation of CD4 T helper cells. T helper cell differentiation to effector or regulatory phenotypes is controlled by cytokine networks and transcriptional regulators. Distinct polarized T helper cells are able to alter their phenotypes to adapt to diverse and fluctuating physiological environments. T helper cells exhibit intrinsic instability and flexibility to express cytokines of other lineages or transdifferentiate from one T helper cell type to another in response to various perturbations from physiological cytokine milieu as a means of promoting local immunity in response to injury or ensure tissue homeostasis. Furthermore, functional plasticity and diversity of T helper cells are associated with pathogenicity and are critical for immune homeostasis and prevention of autoimmunity. In this review, we provide deeper insights into the combinatorial extrinsic and intrinsic signals that control plasticity and transdifferentiation of T helper cells and also highlight the potential of exploiting the genetic reprogramming plasticity of T helper cells in the treatment of IBD.
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