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Mohammad Piri S, Amin Habibi M, Shool S, Khazaeli Najafabadi M, Ahmadpour S, Alemi F, Aria Nejadghaderi S, Shokri P, Abdi M, Asghari N, Amir Asef-Agah S, Tavakolpour S. Role of T follicular helper cells in autoimmune rheumatic Diseases: A systematic review on immunopathogenesis and response to treatment. Hum Immunol 2024; 85:110838. [PMID: 38970880 DOI: 10.1016/j.humimm.2024.110838] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2024] [Revised: 06/09/2024] [Accepted: 06/28/2024] [Indexed: 07/08/2024]
Abstract
BACKGROUND T follicular helper (Tfh) cells are a subdivision of T helper cells involved in antigen-specific B cell immunity. Tfh cells play an essential role in the interaction of T cells/B cells in the germinal centers (GC), and dysregulation of Tfh actions can offer pathogenic autoantibody formation and lead to the development of autoimmune diseases. This study seeks to evaluate changes in Tfh frequency and its related cytokines in autoimmune disease, its association with disease phase, severity, prognosis, and the effect of immunosuppressive treatment on the Tfh population. METHOD The study adhered to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) 2020 Statement. Electronic databases, including PubMed, Scopus, Web of Science, and Embase, were systematically searched for potentially eligible studies up to January 1, 2024. RESULTS We identified 4998 articles in the initial search, from which 1686 similar titles were removed. A total of 3312 articles were initially screened, and 3051 articles were excluded by title/abstract screening. A total of 261 studies were considered for full-text assessment, and 205 articles were excluded by reason. Finally, a total of 56 studies were included in our review. CONCLUSION The population of Tfh cells is generally higher in autoimmune diseases versus Health control. Moreover, the number of Tfh cells is associated with the disease severity and can be considered for determining the prognosis of studies. Also, peripheral blood circulating Tfh (cTfh) cells are an available sample that can be used as an indicator for diagnosing diseases.
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Affiliation(s)
- Seyed Mohammad Piri
- Department of Pathology, Shariati Hospital, Tehran University of Medical Sciences, Tehran, Iran.
| | - Mohammad Amin Habibi
- Department of Neurosurgery, Shariati Hospital, Tehran University of Medical Sciences, Tehran, Iran.
| | - Sina Shool
- Faculty of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | | | - Sajjad Ahmadpour
- Patient Safety Research Center, Clinical Research Institute, Urmia University of Medical Sciences, Urmia, Iran.
| | - Fakhroddin Alemi
- School of Medicine, Mazandaran University of Medical Sciences, Sari, Iran.
| | - Seyed Aria Nejadghaderi
- Faculty of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran; Systematic Review and Meta-analysis Expert Group (SRMEG), Universal Scientific Education and Research Network (USERN), Tehran, Iran.
| | - Pourya Shokri
- Faculty of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | - Mohtaram Abdi
- Student Research Committe, Faculty of Medicine, North Khorasan University of Medical Sciences, Bonjnurd, Iran.
| | - Negin Asghari
- Student Research Committe, Faculty of Medicine, North Khorasan University of Medical Sciences, Bonjnurd, Iran.
| | - Seyed Amir Asef-Agah
- Student Research Committee, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.
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Evaluating IL-21 as a Potential Therapeutic Target in Crohn's Disease. Gastroenterol Res Pract 2018; 2018:5962624. [PMID: 29849593 PMCID: PMC5914125 DOI: 10.1155/2018/5962624] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/09/2017] [Revised: 02/05/2018] [Accepted: 02/13/2018] [Indexed: 12/20/2022] Open
Abstract
Background and Aim Interleukin-21 (IL-21) is primarily a T cell-derived cytokine; it is upregulated in patients with Crohn's Disease (CD) and could be a potential new therapeutic target in CD. Methods In human material, IL-21 and IL-21R expression was investigated by in situ hybridization (ISH) and immunohistochemistry (IHC) in noninflammatory bowel disease (non-IBD) controls and patients with CD. The pathologic role of IL-21 was examined in murine models of T cell-dependent and T cell-independent colitis, either with a neutralizing monoclonal antibody against IL-21 or with the transfer of CD4+CD45RBhighIL-21R-/- T cells. Colonic pathology was examined by endoscopy, histopathology, IHC, ELISA, and Luminex. Results In the human intestine, IL-21 and IL-21R mRNA and protein-expressing cells were observed in the mucosa, in lymphoid aggregates of submucosa in non-IBD controls, and in lymphoid aggregates of muscularis externa in patients with CD. IL-21 expression was most abundant in germinal centers (GCs) of the lymphoid aggregates, and IL-21R expression assessed semiquantitatively, was significantly higher in patients with CD compared to non-IBD controls. Following prophylactic and interventive anti-IL-21 mAb treatment in the adoptive transfer (AdTr) model, clinical and pathological parameters were significantly reduced. The most persistent finding was a reduction in colonic infiltrating neutrophils. As well, Rag2-/- mice receiving CD4+CD45RBhighIL-21R-/- T cells developed less severe colitis compared to Rag2-/- mice receiving CD4+CD45RBhighIL-21R+/+ T cells. No effect of reduced IL-21 signalling was observed in T cell-independent colitis. Conclusion Our study shows that patients with CD have significant expression of IL-21 and IL-21R in the gut. As well, we show that neutralization of IL-21 in experimental T cell-driven colitis is associated with a reduction in clinical and pathological findings. This amelioration seems to be associated with a reduction in colon-infiltrating neutrophils.
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Zhang D, Wu Y, Sun G. miR-192 suppresses T follicular helper cell differentiation by targeting CXCR5 in childhood asthma. Scandinavian Journal of Clinical and Laboratory Investigation 2018; 78:236-242. [PMID: 29490514 DOI: 10.1080/00365513.2018.1440628] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
The aim of this study was to investigate the role of miR-192 in differentiation of T follicular helper cells in childhood asthma. Blood samples were taken from eighteen children with acute asthma attacks and fifteen healthy children (HC). Quantitative real-time PCR and Western blotting were used to detect the expression levels of miR-192, C-X-C chemokine receptor type 5 (CXCR5), B-cell lymphoma 6 (BCL-6) and inducible T-cell costimulator (ICOS). The flow cytometry was performed to detect the proportion of CD4 + CXCR5+ Tfh cells on CD4 + T lymphocytes. The enzyme-linked immunosorbent assay (ELISA) was carried out to determine the plasma concentrations of total IgE and IL-21. The effect of miR-192 on the T follicular helper cells differentiation by targeting CXCR5 was determined by dual-luciferase reporter assay. Children with asthma had lower levels of miR-192 than HC. The proportion of CD4 + CXCR + Tfh cells was significantly higher in the acute asthma group than HC. Similarly, the plasma concentration of total IgE and IL-21 in the acute group markedly increased compared with the HC, and IgE concentration was positively correlated with the proportion of CD4 + CXCR5 + Tfh cells. Furthermore, the expression levels of CXCR5, Bcl-6 and ICOS were significantly higher in the acute group than in the HC. While the proportion of CD4 + CXCR5 + Tfh cells, IL-21, CXCR5, Bcl-6 and ICOS were obviously lower in the CD4 + T cells transfected with miR-192 plasmid than that in miR-192 + CXCR5 group and control group. In conclusion, miR-192 blocks the activation pathway of Tfh cells by targeting CXCR5, which is a reasonable cellular target for therapeutic intervention.
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Affiliation(s)
- Defeng Zhang
- a Department of Pediatrics , Anhui Provincial Hospital, Anhui Medical University , Hefei , Anhui , China
| | - Yuanbo Wu
- b Department of Neurology , Anhui Provincial Hospital, Anhui Medical University , Hefei , Anhui , China
| | - Gengyun Sun
- c Department of Respiration , First Affiliated Hospital of Anhui Medical University , Hefei , Anhui , China
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Zhao S, Fang F, Tang X, Dou J, Wang W, Zheng X, Sun L, Zhang A. An in-depth analysis identifies two new independent signals in 11q23.3 associated with vitiligo in the Chinese Han population. J Dermatol Sci 2017; 88:103-109. [DOI: 10.1016/j.jdermsci.2017.05.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2016] [Revised: 03/24/2017] [Accepted: 05/02/2017] [Indexed: 01/02/2023]
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