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Fukui C, Yamana S, Xue Y, Shirane M, Tsutsui H, Asahara K, Yoshitomi K, Ito T, Lestari T, Hasegawa E, Yawata N, Takeda A, Sonoda KH, Shibata K. Functions of mucosal associated invariant T cells in eye diseases. Front Immunol 2024; 15:1341180. [PMID: 38440736 PMCID: PMC10911089 DOI: 10.3389/fimmu.2024.1341180] [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: 11/20/2023] [Accepted: 01/29/2024] [Indexed: 03/06/2024] Open
Abstract
Mucosal-associated invariant T (MAIT) cells are a unique subset of T cells that recognizes metabolites derived from the vitamin B2 biosynthetic pathway. Since the identification of cognate antigens for MAIT cells, knowledge of the functions of MAIT cells in cancer, autoimmunity, and infectious diseases has been rapidly expanding. Recently, MAIT cells have been found to contribute to visual protection against autoimmunity in the eye. The protective functions of MAIT cells are induced by T-cell receptor (TCR)-mediated activation. However, the underlying mechanisms remain unclear. Thus, this mini-review aims to discuss our findings and the complexity of MAIT cell-mediated immune regulation in the eye.
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Affiliation(s)
- Chihiro Fukui
- Department of Ophthalmology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Satoshi Yamana
- Department of Ophthalmology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Yanqi Xue
- Department of Ophthalmology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Mariko Shirane
- Department of Ophthalmology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Hiroki Tsutsui
- Department of Ophthalmology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Kenichiro Asahara
- Department of Ophthalmology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Keiko Yoshitomi
- Department of Ophthalmology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Takako Ito
- Department of Ophthalmology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Tantri Lestari
- Department of Ophthalmology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Eiichi Hasegawa
- Department of Ophthalmology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Nobuyo Yawata
- Department of Ocular Pathology and Imaging Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Atsunobu Takeda
- Department of Ophthalmology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Koh-Hei Sonoda
- Department of Ophthalmology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Kensuke Shibata
- Department of Ocular Pathology and Imaging Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
- Department of Microbiology and Immunology, Graduate School of Medicine, Yamaguchi University, Ube, Japan
- Department of Molecular Immunology, Research Institute for Microbial Diseases, Osaka University, Suita, Japan
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2
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Gray EH, Srenathan U, Durham LE, Lalnunhlimi S, Steel KJA, Catrina A, Kirkham BW, Taams LS. Human in vitro-induced IL-17A+ CD8+ T-cells exert pro-inflammatory effects on synovial fibroblasts. Clin Exp Immunol 2023; 214:103-119. [PMID: 37367825 PMCID: PMC10711358 DOI: 10.1093/cei/uxad068] [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: 03/29/2023] [Revised: 05/25/2023] [Accepted: 06/26/2023] [Indexed: 06/28/2023] Open
Abstract
IL-17A+ CD8+ T-cells, termed Tc17 cells, have been identified at sites of inflammation in several immune-mediated inflammatory diseases. However, the biological function of human IL-17A+ CD8+ T-cells is not well characterized, likely due in part to the relative scarcity of these cells. Here, we expanded IL-17A+ CD8+ T-cells from healthy donor PBMC or bulk CD8+ T-cell populations using an in vitro polarization protocol. We show that T-cell activation in the presence of IL-1β and IL-23 significantly increased the frequencies of IL-17A+ CD8+ T-cells, which was not further enhanced by IL-6, IL-2, or anti-IFNγ mAb addition. In vitro-generated IL-17A+ CD8+ T-cells displayed a distinct type-17 profile compared with IL-17A- CD8+ T-cells, as defined by transcriptional signature (IL17A, IL17F, RORC, RORA, MAF, IL23R, CCR6), high surface expression of CCR6 and CD161, and polyfunctional production of IL-17A, IL-17F, IL-22, IFNγ, TNFα, and GM-CSF. A significant proportion of in vitro-induced IL-17A+ CD8+ T-cells expressed TCRVα7.2 and bound MR1 tetramers indicative of MAIT cells, indicating that our protocol expanded both conventional and unconventional IL-17A+ CD8+ T-cells. Using an IL-17A secretion assay, we sorted the in vitro-generated IL-17A+ CD8+ T-cells for functional analysis. Both conventional and unconventional IL-17A+ CD8+ T-cells were able to induce pro-inflammatory IL-6 and IL-8 production by synovial fibroblasts from patients with psoriatic arthritis, which was reduced upon addition of anti-TNFα and anti-IL-17A neutralizing antibodies. Collectively, these data demonstrate that human in vitro-generated IL-17A+ CD8+ T-cells are biologically functional and that their pro-inflammatory function can be targeted, at least in vitro, using existing immunotherapy.
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Affiliation(s)
- Elizabeth H Gray
- Centre for Inflammation Biology and Cancer Immunology, Department of Inflammation Biology, School of Immunology & Microbial Sciences, King's College London, London, UK
| | - Ushani Srenathan
- Centre for Inflammation Biology and Cancer Immunology, Department of Inflammation Biology, School of Immunology & Microbial Sciences, King's College London, London, UK
| | - Lucy E Durham
- Centre for Inflammation Biology and Cancer Immunology, Department of Inflammation Biology, School of Immunology & Microbial Sciences, King's College London, London, UK
| | - Sylvine Lalnunhlimi
- Centre for Inflammation Biology and Cancer Immunology, Department of Inflammation Biology, School of Immunology & Microbial Sciences, King's College London, London, UK
| | - Kathryn J A Steel
- Centre for Inflammation Biology and Cancer Immunology, Department of Inflammation Biology, School of Immunology & Microbial Sciences, King's College London, London, UK
| | - Anca Catrina
- Rheumatology Unit, Department of Medicine (Solna), Karolinska Institute, Stockholm, Sweden
| | - Bruce W Kirkham
- Department of Rheumatology, Guy's Hospital, Guy's and St. Thomas' NHS Foundation Trust Hospital, London, UK
| | - Leonie S Taams
- Centre for Inflammation Biology and Cancer Immunology, Department of Inflammation Biology, School of Immunology & Microbial Sciences, King's College London, London, UK
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3
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Koprivica I, Stanisavljević S, Mićanović D, Jevtić B, Stojanović I, Miljković Đ. ILC3: a case of conflicted identity. Front Immunol 2023; 14:1271699. [PMID: 37915588 PMCID: PMC10616800 DOI: 10.3389/fimmu.2023.1271699] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Accepted: 10/02/2023] [Indexed: 11/03/2023] Open
Abstract
Innate lymphoid cells type 3 (ILC3s) are the first line sentinels at the mucous tissues, where they contribute to the homeostatic immune response in a major way. Also, they have been increasingly appreciated as important modulators of chronic inflammatory and autoimmune responses, both locally and systemically. The proper identification of ILC3 is of utmost importance for meaningful studies on their role in immunity. Flow cytometry is the method of choice for the detection and characterization of ILC3. However, the analysis of ILC3-related papers shows inconsistency in ILC3 phenotypic definition, as different inclusion and exclusion markers are used for their identification. Here, we present these discrepancies in the phenotypic characterization of human and mouse ILC3s. We discuss the pros and cons of using various markers for ILC3 identification. Furthermore, we consider the possibilities for the efficient isolation and propagation of ILC3 from different organs and tissues for in-vitro and in-vivo studies. This paper calls upon uniformity in ILC3 definition, isolation, and propagation for the increased possibility of confluent interpretation of ILC3's role in immunity.
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Affiliation(s)
| | | | | | | | | | - Đorđe Miljković
- Department of Immunology, Institute for Biological Research “Siniša Stanković” - National Institute of Republic of Serbia, University of Belgrade, Belgrade, Serbia
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4
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Navarro-Compán V, Puig L, Vidal S, Ramírez J, Llamas-Velasco M, Fernández-Carballido C, Almodóvar R, Pinto JA, Galíndez-Aguirregoikoa E, Zarco P, Joven B, Gratacós J, Juanola X, Blanco R, Arias-Santiago S, Sanz Sanz J, Queiro R, Cañete JD. The paradigm of IL-23-independent production of IL-17F and IL-17A and their role in chronic inflammatory diseases. Front Immunol 2023; 14:1191782. [PMID: 37600764 PMCID: PMC10437113 DOI: 10.3389/fimmu.2023.1191782] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Accepted: 07/05/2023] [Indexed: 08/22/2023] Open
Abstract
Interleukin-17 family (IL-17s) comprises six structurally related members (IL-17A to IL-17F); sequence homology is highest between IL-17A and IL-17F, displaying certain overlapping functions. In general, IL-17A and IL-17F play important roles in chronic inflammation and autoimmunity, controlling bacterial and fungal infections, and signaling mainly through activation of the nuclear factor-kappa B (NF-κB) pathway. The role of IL-17A and IL-17F has been established in chronic immune-mediated inflammatory diseases (IMIDs), such as psoriasis (PsO), psoriatic arthritis (PsA), axial spondylarthritis (axSpA), hidradenitis suppurativa (HS), inflammatory bowel disease (IBD), multiple sclerosis (MS), and asthma. CD4+ helper T cells (Th17) activated by IL-23 are well-studied sources of IL-17A and IL-17F. However, other cellular subtypes can also produce IL-17A and IL-17F, including gamma delta (γδ) T cells, alpha beta (αβ) T cells, type 3 innate lymphoid cells (ILC3), natural killer T cells (NKT), or mucosal associated invariant T cells (MAIT). Interestingly, the production of IL-17A and IL-17F by innate and innate-like lymphocytes can take place in an IL-23 independent manner in addition to IL-23 classical pathway. This would explain the limitations of the inhibition of IL-23 in the treatment of patients with certain rheumatic immune-mediated conditions such as axSpA. Despite their coincident functions, IL-17A and IL-17F contribute independently to chronic tissue inflammation having somehow non-redundant roles. Although IL-17A has been more widely studied, both IL-17A and IL-17F are overexpressed in PsO, PsA, axSpA and HS. Therefore, dual inhibition of IL-17A and IL-17F could provide better outcomes than IL-23 or IL-17A blockade.
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Affiliation(s)
| | - Luis Puig
- Department of Dermatology, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain
| | - Silvia Vidal
- Immunology-Inflammatory Diseases, Institut de Recerca de l’Hospital de la Santa Creu i Sant Pau, Biomedical Research Institute Sant Pau (IIB Sant Pau), Barcelona, Spain
| | - Julio Ramírez
- Arthritis Unit, Department of Rheumatology, Hospital Clínic and Instituto de Investigaciones Biomédicas August Pi i Sunyer (IDIBAPS), Barcelona, Spain
| | - Mar Llamas-Velasco
- Department of Dermatology, Hospital Universitario La Princesa, Madrid, Spain
| | | | - Raquel Almodóvar
- Department of Rheumatology, Hospital Universitario Fundación Alcorcón, Alcorcón, Madrid, Spain
| | - José Antonio Pinto
- Department of Rheumatology, Complejo Hospitalario Universitario de A Coruña, Instituto de Investigación Biomédica de A Coruña (INIBIC), A Coruña, Spain
| | | | - Pedro Zarco
- Department of Rheumatology, Hospital Universitario Fundación Alcorcón, Alcorcón, Madrid, Spain
| | - Beatriz Joven
- Department of Rheumatology, Hospital Universitario 12 de Octubre, Madrid, Spain
| | - Jordi Gratacós
- Department of Rheumatology, Medicine Department Autonomus University of Barcelona (UAB), I3PT, University Hospital Parc Taulí Sabadell, Barcelona, Spain
| | - Xavier Juanola
- Department of Rheumatology, University Hospital Bellvitge, Instituto de Investigación Biomédica de Bellvitge (IDIBELL), Barcelona, Spain
| | - Ricardo Blanco
- Department of Rheumatology, Hospital Universitario Marqués de Valdecilla, Instituto de Investigación Marqués de Valdecilla (IDIVAL), Santander, Spain
| | - Salvador Arias-Santiago
- Department of Dermatology, Hospital Universitario Virgen de las Nieves, Granada, Spain
- Instituto de Investigación Biosanitaria ibs.GRANADA, Granada, Spain
- Department of Dermatology, Facultad de Medicina, Universidad de Granada, Spain
| | - Jesús Sanz Sanz
- Department of Rheumatology, Hospital Universitario Puerta del Hierro Majadahonda, Madrid, Spain
| | - Rubén Queiro
- Department of Rheumatology, Hospital Universitario Central de Asturias, Oviedo, Asturias, Spain
| | - Juan D. Cañete
- Arthritis Unit, Department of Rheumatology, Hospital Clínic and Instituto de Investigaciones Biomédicas August Pi i Sunyer (IDIBAPS), Barcelona, Spain
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5
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Slouma M, Kharrat L, Tezegdenti A, Metoui L, Dhahri R, Ghazouani E, Cheour E, Gharsallah I, Louzir B. Increased serum interleukin 22 levels in patients with axial spondyloarthritis. Expert Rev Clin Immunol 2023; 19:123-129. [PMID: 36326666 DOI: 10.1080/1744666x.2023.2142563] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
OBJECTIVES The role of IL-22 in radiographic axial spondyloarthritis is not fully elucidated. Thus, there is a need for new insights into this cytokine in this disease. We aimed to compare interleukin (IL)-22 level between spondyloarthritis, nonspecific-low back pain patients, and pain-free controls, and to evaluate associations between this cytokine and spondyloarthritis characteristics. METHODS We conducted a case-control study including 62 patients with radiographic axial spondyloarthritis (G1), 46 with nonspecific low back pain (G2), and 42 healthy volunteers (G3). IL-22 was measured using Enzyme-linked immunosorbent assay. We evaluate disease activity and structural damage of spondyloarthritis. RESULTS IL-22 level was higher in G1 than in G2 and G3 (38±40 versus14.42±8.17 versus14.3±18.67 pg/mL, p<0.01). IL-22 discriminated patients in G1 from G2 with a cutoff of 22.28pg/mL (Sensitivity: 62.9%, Specificity: 97.8%, area under the curve (AUC): 0.808). IL-22 cutoff of 19.27pg/mL discriminated patients in G1 from G3 (Sensitivity: 67%, Specificity: 94.3%, AUC: 0.855). No associations were found between IL-22 levels and disease activity and structural damage. CONCLUSIONS Our study showed that IL-22 level was higher in radiographic axial spondyloarthritis patients compared to controls. It was also able to differentiate G1 patients from G2 and G3. This finding suggests that the IL-22 pathway showed to play a pathological role in spondyloarthritis.
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Affiliation(s)
- Maroua Slouma
- Department of Rheumatology, Military Hospital, Tunis, Tunisia.,Faculty of medecine of Tunis, Tunis El Manar University, Tunis, Tunisia.,Faculté des sciences de Tunis, Mycology, Pathologies, and Biomarkers Laboratory, Tunis, Tunisia
| | - Lobna Kharrat
- Department of Rheumatology, Military Hospital, Tunis, Tunisia.,Faculty of medecine of Tunis, Tunis El Manar University, Tunis, Tunisia
| | - Aymen Tezegdenti
- Faculty of medecine of Tunis, Tunis El Manar University, Tunis, Tunisia.,Department of Immunology, Military Hospital, Tunis, Tunisia
| | - Leila Metoui
- Department of Rheumatology, Military Hospital, Tunis, Tunisia.,Faculty of medecine of Tunis, Tunis El Manar University, Tunis, Tunisia
| | - Rim Dhahri
- Department of Rheumatology, Military Hospital, Tunis, Tunisia.,Faculty of medecine of Tunis, Tunis El Manar University, Tunis, Tunisia
| | - Ezzeddine Ghazouani
- Faculty of medecine of Tunis, Tunis El Manar University, Tunis, Tunisia.,Department of Immunology, Military Hospital, Tunis, Tunisia
| | - Elhem Cheour
- Faculty of medecine of Tunis, Tunis El Manar University, Tunis, Tunisia.,Pain Treatment Center, La Rabta Hospital, Tunis, Tunisia
| | - Imen Gharsallah
- Department of Rheumatology, Military Hospital, Tunis, Tunisia.,Faculty of medecine of Tunis, Tunis El Manar University, Tunis, Tunisia
| | - Bassem Louzir
- Faculty of medecine of Tunis, Tunis El Manar University, Tunis, Tunisia.,Department of Internal Medicine, Military Hospital, Tunis, Tunisia
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6
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Bittar M, Mease P. Novel therapies in axial spondyloarthritis. Best Pract Res Clin Rheumatol 2022; 36:101811. [PMID: 36566165 DOI: 10.1016/j.berh.2022.101811] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Over the past two decades, advancements in understanding the pathogenesis of axial spondyloarthritis have led to discoveries of new therapeutic targets, particularly the interleukin-17, tumor necrosis factor axis, and Janus kinase-signal transducer and activator of transcription pathway. While many of the available agents have proven to be efficacious and safe for the treatment of axial spondyloarthritis, a remarkable percentage of patients either fail or cannot tolerate these medications. This has prompted researchers to look for new targets that would maximize efficacy and minimize toxicity. In this article, we review novel agents that were recently approved, in trials, and possible future targets or mechanisms. We also discuss their role as it pertains to the prevention of radiographic progression and the management of extra-musculoskeletal manifestations.
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Affiliation(s)
- Mohamad Bittar
- The University of Tennessee Health Science Center, Division of Connective Tissue Disease (Rheumatology), 956 Court Avenue, Coleman Building, Suite G326, Memphis, TN 38163, USA.
| | - Philip Mease
- Swedish Medical Center/Providence St. Joseph Health and University of Washington School of Medicine, Seattle Rheumatology Associates, 601 Broadway, Suite 600, Seattle, WA 98102, USA.
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7
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Wang Y, Yu H, Li J, Liu W, Yu S, Lv P, Zhao L, Wang X, Zuo Z, Liu X. Th22 cells induce Müller cell activation via the Act1/TRAF6 pathway in diabetic retinopathy. Cell Tissue Res 2022; 390:367-383. [PMID: 36201050 DOI: 10.1007/s00441-022-03689-8] [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: 04/27/2022] [Accepted: 09/14/2022] [Indexed: 11/02/2022]
Abstract
T helper 22 (Th22) cells have been implicated in diabetic retinopathy (DR), but it remains unclear whether Th22 cells involve in the pathogenesis of DR. To investigate the role of Th22 cells in DR mice, the animal models were established by intraperitoneal injection of STZ and confirmed by fundus fluorescein angiography and retinal haematoxylin-eosin staining. IL-22BP was administered by intravitreal injection. IL-22 level was measured by ELISA in vivo and in vitro. The expression of IL-22Rα1 in the retina was assessed by immunofluorescence. We assessed GFAP, VEGF, ICAM-1, inflammatory-associated factors and the integrity of blood-retinal barrier in control, DR, IL-22BP, and sham group. Müller cells were co-cultured with Th22 cells, and the expression of the above proteins was measured by immunoblotting. Plasmid transfection technique was used to silence Act1 gene in Müller cells. Results in vivo and in vitro indicated that Th22 cells infiltrated into the DR retinal and IL-22Rα1 expressed in Müller cells. Th22 cells promoted Müller cells activation and inflammatory factor secretion by secreting IL-22 compared with high-glucose stimulation alone. In addition, IL-22BP ameliorated the pathological alterations of the retina in DR. Inhibition of the inflammatory signalling cascade through Act1 knockdown alleviated DR-like pathology. All in all, the results suggested that Th22 cells infiltrated into the retina and secreted IL-22 in DR, and then IL-22 binding with IL-22Rα1 activated the Act1/TRAF6 signal pathway, and promoted the inflammatory of Müller cells and involved the pathogenesis of DR.
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Affiliation(s)
- Yufei Wang
- Liaoning Key Laboratory of Diabetic Cognitive and Perceptive Dysfunction, Jinzhou Medical University, Jinzhou, China.,Department of Anatomy, Histology and Embryology, Jinzhou Medical University, Jinzhou, China
| | - Hongdan Yu
- Liaoning Key Laboratory of Diabetic Cognitive and Perceptive Dysfunction, Jinzhou Medical University, Jinzhou, China.,Department of Anatomy, Histology and Embryology, Jinzhou Medical University, Jinzhou, China
| | - Jing Li
- Liaoning Key Laboratory of Diabetic Cognitive and Perceptive Dysfunction, Jinzhou Medical University, Jinzhou, China
| | - Wenqiang Liu
- Liaoning Key Laboratory of Diabetic Cognitive and Perceptive Dysfunction, Jinzhou Medical University, Jinzhou, China.,Department of Anatomy, Histology and Embryology, Jinzhou Medical University, Jinzhou, China
| | - Shengxue Yu
- Liaoning Key Laboratory of Diabetic Cognitive and Perceptive Dysfunction, Jinzhou Medical University, Jinzhou, China.,Department of Anatomy, Histology and Embryology, Jinzhou Medical University, Jinzhou, China
| | - Pan Lv
- Liaoning Key Laboratory of Diabetic Cognitive and Perceptive Dysfunction, Jinzhou Medical University, Jinzhou, China.,Department of Anatomy, Histology and Embryology, Jinzhou Medical University, Jinzhou, China
| | - Lipan Zhao
- Liaoning Key Laboratory of Diabetic Cognitive and Perceptive Dysfunction, Jinzhou Medical University, Jinzhou, China.,Department of Anatomy, Histology and Embryology, Jinzhou Medical University, Jinzhou, China
| | - Xiaobai Wang
- Liaoning Key Laboratory of Diabetic Cognitive and Perceptive Dysfunction, Jinzhou Medical University, Jinzhou, China.,Department of Anatomy, Histology and Embryology, Jinzhou Medical University, Jinzhou, China
| | - Zhongfu Zuo
- Liaoning Key Laboratory of Diabetic Cognitive and Perceptive Dysfunction, Jinzhou Medical University, Jinzhou, China. .,Department of Anatomy, Histology and Embryology, Jinzhou Medical University, Jinzhou, China. .,Department of Anatomy, Histology and Embryology, Postdoctoral Research Station, Guangxi Medical University, Nanning, China.
| | - Xuezheng Liu
- Liaoning Key Laboratory of Diabetic Cognitive and Perceptive Dysfunction, Jinzhou Medical University, Jinzhou, China. .,Department of Anatomy, Histology and Embryology, Jinzhou Medical University, Jinzhou, China.
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8
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JAK-STAT Signaling Pathway in Non-Infectious Uveitis. Biochem Pharmacol 2022; 204:115236. [PMID: 36041544 DOI: 10.1016/j.bcp.2022.115236] [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: 07/20/2022] [Revised: 08/21/2022] [Accepted: 08/23/2022] [Indexed: 11/22/2022]
Abstract
Non-infectious uveitis (NIU) refers to various intraocular inflammatory disorders responsible for severe visual loss. Cytokines participate in the regulation of ocular homeostasis and NIU pathological processes. Cytokine receptors transmit signals by activating Janus kinase (JAK) and signal transducer and activator of transcription (STAT) proteins. Increasing evidence from human NIU and experimental models reveals the involvement of the JAK-STAT signaling pathway in NIU pathogenesis. Several small-molecule drugs that potentially inhibit multiple cytokine-dependent pathways are under investigation for treating autoimmune diseases, implicating possible applications for NIU treatment. This review summarizes the current understanding of the diverse roles of the JAK-STAT signaling pathway in ocular homeostasis and NIU pathology, providing a rationale for targeting JAKs and STATs for NIU treatment. Moreover, available evidence for the safety and efficacy of JAK inhibitors for refractory uveitis and potential approaches for treatment optimization are discussed.
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9
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Wu S, Ma R, Zhong Y, Chen Z, Zhou H, Zhou M, Chong W, Chen J. Deficiency of IL-27 Signaling Exacerbates Experimental Autoimmune Uveitis with Elevated Uveitogenic Th1 and Th17 Responses. Int J Mol Sci 2021; 22:ijms22147517. [PMID: 34299138 PMCID: PMC8305313 DOI: 10.3390/ijms22147517] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Revised: 06/24/2021] [Accepted: 07/11/2021] [Indexed: 01/31/2023] Open
Abstract
Human uveitis is an autoimmune disease of the central nervous system that is characterized by ocular inflammation with the involvement of uveitogenic Th1 and Th17 responses. In experimental autoimmune uveitis (EAU), the animal model for human uveitis, both responses are proven to be critical in disease development. Therefore, targeting both Th1 and Th17 cells has therapeutic implication for disease resolution. IL-27 is a multifunctional cytokine that can either promote or inhibit T cell responses and is implicated in both autoimmune and infectious diseases. The aim of this study is to characterize the role of IL-27/IL-27R signaling in regulating uveitogenic Th1/Th17 responses in EAU. By immunizing IL-27Rα-/- mice and their wild-type (WT) littermates for EAU, we demonstrated that IL-27 signaling deficiency exacerbated EAU with severe ocular inflammation and impairment of visual function. Furthermore, there was a significant increase in the eye-infiltrating Th1 and Th17 cells in IL-27Rα-/- EAU mice compared to WT. Their retinal antigen-specific Th1 and Th17 responses were also significantly increased, as represented by the elevation of their signature cytokines, IFN-γ and IL-17A, respectively. We also observed the upregulation of another pathogenic cytokine, granulocyte-macrophage colony-stimulating factor (GM-CSF), from effector T cells in IL-27Rα-/- EAU mice. Mechanistic studies confirmed that IL-27 inhibited GM-CSF production from Th17 cells. In addition, the induction of IL-10 producing type 1 regulatory T (Tr1) cells was impaired in IL-27Rα-/- EAU mice. These results identified that IL-27 signaling plays a suppressive role in EAU by regulating multiple CD4+ cell subsets, including the effector Th1 and Th17 cells and the regulatory Tr1 cells. Our findings provide new insights for therapeutic potential in controlling uveitis by enhancing IL-27 signaling.
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10
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Wakefield D, Clarke D, McCluskey P. Recent Developments in HLA B27 Anterior Uveitis. Front Immunol 2021; 11:608134. [PMID: 33469457 PMCID: PMC7813675 DOI: 10.3389/fimmu.2020.608134] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2020] [Accepted: 11/23/2020] [Indexed: 02/03/2023] Open
Abstract
There has been steady progress in understanding the pathogenesis, clinical features, and effective treatment of acute anterior uveitis (AU) over the past 5 years. Large gene wide association studies have confirmed that AU is a polygenic disease, with overlaps with the seronegative arthropathies and inflammatory bowel diseases, associations that have been repeatedly confirmed in clinical studies. The role of the microbiome in AU has received increased research attention, with recent evidence indicating that human leukocyte antigen B27 (HLA B27) may influence the composition of the gut microbiome in experimental animals. Extensive clinical investigations have confirmed the typical features of acute AU (AAU) and its response to topical, regional and systemic immunosuppressive treatment. Increased understanding of the role of cytokines has resulted in studies confirming the value of anti-cytokine therapy [anti-tumor necrosis factor (anti-TNF) and interleukin 6 (IL-6) therapy] in severe and recurrent cases of AAU, particularly in subjects with an associated spondyloarthopathy (SpA) and in juvenile idiopathic arthritis (JIA)-associated AAU.
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Affiliation(s)
- Denis Wakefield
- Faculty of Medicine, University of NSW Sydney, Kensington, NSW, Australia
- NSW Health Pathology and South Eastern Sydney, LHD, Sydney, NSW, Australia
| | - Daniel Clarke
- Department of Medicine, South Eastern Sydney, LHD, Sydney, NSW, Australia
| | - Peter McCluskey
- Save Sight Institute, The University of Sydney, Sydney, NSW, Australia
- Discipline of Clinical Ophthalmology and Eye Health, Faculty of Medicine and Health, The University of Sydney, Sydney, NSW, Australia
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11
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Napier RJ, Lee EJ, Davey MP, Vance EE, Furtado JM, Snow PE, Samson KA, Lashley SJ, Brown BR, Horai R, Mattapallil MJ, Xu B, Callegan MC, Uebelhoer LS, Lancioni CL, Vehe RK, Binstadt BA, Smith JR, Caspi RR, Rosenzweig HL. T cell-intrinsic role for Nod2 in protection against Th17-mediated uveitis. Nat Commun 2020; 11:5406. [PMID: 33106495 PMCID: PMC7589501 DOI: 10.1038/s41467-020-18961-0] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2018] [Accepted: 09/20/2020] [Indexed: 12/21/2022] Open
Abstract
Mutations in nucleotide-binding oligomerization domain-containing protein 2 (NOD2) cause Blau syndrome, an inflammatory disorder characterized by uveitis. The antimicrobial functions of Nod2 are well-established, yet the cellular mechanisms by which dysregulated Nod2 causes uveitis remain unknown. Here, we report a non-conventional, T cell-intrinsic function for Nod2 in suppression of Th17 immunity and experimental uveitis. Reconstitution of lymphopenic hosts with Nod2-/- CD4+ T cells or retina-specific autoreactive CD4+ T cells lacking Nod2 reveals a T cell-autonomous, Rip2-independent mechanism for Nod2 in uveitis. In naive animals, Nod2 operates downstream of TCR ligation to suppress activation of memory CD4+ T cells that associate with an autoreactive-like profile involving IL-17 and Ccr7. Interestingly, CD4+ T cells from two Blau syndrome patients show elevated IL-17 and increased CCR7. Our data define Nod2 as a T cell-intrinsic rheostat of Th17 immunity, and open new avenues for T cell-based therapies for Nod2-associated disorders such as Blau syndrome.
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Affiliation(s)
- Ruth J Napier
- VA Portland Health Care System, Portland, OR, 97239, USA.,Department of Molecular Microbiology and Immunology, Oregon Health and Science University, Portland, OR, 97239, USA
| | - Ellen J Lee
- VA Portland Health Care System, Portland, OR, 97239, USA.,Department of Molecular Microbiology and Immunology, Oregon Health and Science University, Portland, OR, 97239, USA
| | - Michael P Davey
- VA Portland Health Care System, Portland, OR, 97239, USA.,Department of Medicine, Oregon Health and Science University, Portland, OR, 97239, USA
| | - Emily E Vance
- VA Portland Health Care System, Portland, OR, 97239, USA.,Department of Molecular Microbiology and Immunology, Oregon Health and Science University, Portland, OR, 97239, USA
| | - João M Furtado
- Division of Ophthalmology, Ribeirão Preto Medical School, University of São Paulo, Butanta, Ribeirão Preto, Brazil
| | - Paige E Snow
- Department of Public Health, Oregon Health and Science University, Portland, OR, 97239, USA
| | | | - Sydney J Lashley
- VA Portland Health Care System, Portland, OR, 97239, USA.,Department of Molecular Microbiology and Immunology, Oregon Health and Science University, Portland, OR, 97239, USA
| | | | - Reiko Horai
- Laboratory of Immunology, NEI, NIH, Bethesda, MD, 20814, USA
| | | | - Biying Xu
- Laboratory of Immunology, NEI, NIH, Bethesda, MD, 20814, USA
| | - Michelle C Callegan
- Department of Ophthalmology, University of Oklahoma Health Sciences Center, Oklahoma, OK, 73104, USA.,Dean A. McGee Institute, Oklahoma City, OK, 73104, USA
| | - Luke S Uebelhoer
- Department of Pediatrics, Oregon Health and Science University, Portland, OR, 97239, USA
| | - Christina L Lancioni
- Department of Pediatrics, Oregon Health and Science University, Portland, OR, 97239, USA
| | - Richard K Vehe
- Department of Pediatrics, University of Minnesota and the University of Minnesota Masonic Children's Hospital, Minneapolis, MN, 55455, USA
| | - Bryce A Binstadt
- Department of Pediatrics, University of Minnesota and the University of Minnesota Masonic Children's Hospital, Minneapolis, MN, 55455, USA.,Center for Immunology and Department of Pediatrics, University of Minnesota, Minneapolis, MN, 55455, USA
| | - Justine R Smith
- College of Medicine and Public Health, Flinders University, Adelaide, SA, 5042, Australia
| | - Rachel R Caspi
- Laboratory of Immunology, NEI, NIH, Bethesda, MD, 20814, USA
| | - Holly L Rosenzweig
- VA Portland Health Care System, Portland, OR, 97239, USA. .,Department of Molecular Microbiology and Immunology, Oregon Health and Science University, Portland, OR, 97239, USA.
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12
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Liu YX, Guo N, Xu MH, Ren GF. Association of Killer Cell Immunoglobulin-like Receptor and Human Leukocyte antigen-C Genotype with HLA-B27 Associated Acute Anterior Uveitis and Idiopathic Acute Anterior Uveitis in a Chinese Han Population. Ocul Immunol Inflamm 2020; 30:451-456. [PMID: 32946319 DOI: 10.1080/09273948.2020.1808228] [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] [Indexed: 10/23/2022]
Abstract
Purpose whether killer cell immunoglobulin-like receptors (KIRs) and human leukocyte antigens C (HLA-C) are associated with HLA-B27 associated acute anterior uveitis (B27AAU) and idiopathic AAU (IAAU) remains unclear.Methods PCR with sequence-specific primers was used to analyze KIR genes and HLA-C alleles in a Chinese Han population of 196AAU patients and 210 control subjects.Results The higher frequencies of HLA-C2 and KIR2DL1/HLA-C2 (p = .009 and p = .044, respectively) and the lower frequencies of HLA-C1C1 and HLA-C1 (p = .034 and p = .009, respectively) were observed in B27AAU than control group. The higher frequencies of KIR2DL2 and KIR2DL2/HLA-C1 (p = .009 and p = .044, respectively) and the lower frequencies of KIR2DL3 and KIR2DL3/HLA-C1 (p = .000 and p = .001, respectively) were observed in IAAU than control group.Conclusions HLA-C2 and KIR2DL1/HLA-C2, KIR2DL2, and KIR2DL2/HLA-C1 might be susceptible for B27AAU and IAAU, respectively. HLA-C1C1 and HLA-C1, KIR2DL3 and KIR2DL3/HLA-C1 might protect from B27AAU and IAAU, respectively.
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Affiliation(s)
- Yun-Xia Liu
- Department of Ophthalmology, The 4th People's Hospital of Jinan, Jinan, Shandong Province, P. R. China
| | - Nan Guo
- Quality Control and Laboratory Department, Yantai Central Blood Station, Yantai, Shandong Province, P. R. China
| | - Ming-Hua Xu
- Quality Control and Laboratory Department, Yantai Central Blood Station, Yantai, Shandong Province, P. R. China
| | - Gui-Fang Ren
- Department of Ophthalmology, The 4th People's Hospital of Jinan, Jinan, Shandong Province, P. R. China
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The Protective Effect of Low Dose of Lipopolysaccharide Pretreatment on Endotoxin-Induced Uveitis in Rats Is Associated with Downregulation of CSF-1 and Upregulation of LRR-1. J Immunol Res 2020; 2020:9314756. [PMID: 32671118 PMCID: PMC7350171 DOI: 10.1155/2020/9314756] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2019] [Revised: 05/26/2020] [Accepted: 06/05/2020] [Indexed: 02/06/2023] Open
Abstract
Purpose To observe the effect of low dose of lipopolysaccharide (LPS) pretreatment on the expression of CSF-1 and LRR-1 in rats with endotoxin-induced uveitis (EIU), and to explore the possible role of TLR4. Method EIU was induced by a single subcutaneous injection of 200 μg LPS. For the endotoxin tolerance group, the induction of EIU was preceded by a daily subcutaneous injection of 0.1 mg/kg LPS for five days. Clinical scores were graded at 24 h after EIU under a slit lamp microscope. HE stain was performed to observe the histopathology. The concentrations of IL-17, INF-γ, and IL-6 in aqueous humor were quantified with enzyme-linked immunosorbent assay. Real-time PCR, Western blot, and immunofluorescence analysis were used to determine the expression of NF-κB P65 and the activation of CSF-1, LRR-1. Results : Low dose of LPS pretreatment produced a suppressive effect by significantly reducing the inflammatory reaction of anterior segment as measured by slit lamp and histopathology. It also significantly reduced the concentrations of IL-17, INF-γ, and IL-6 in aqueous humor and the expression of CSF-1 and NF-κB P65, while increased the expression of LRR-1 compared to the EIU group. Conclusions Low dose of LPS pretreatment can ameliorate endotoxin-induced uveitis in rats. This protection may be associated with upregulation of LRR-1 and downregulation of CSF-1, which is regulated by TLR4 signaling pathway.
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