Increased Frequency of CD4 + Follicular Helper T and CD8 + Follicular T Cells in Human Lymph Node Biopsies during the Earliest Stages of Rheumatoid Arthritis.

Autor:	Anang DC; Amsterdam Rheumatology & Immunology Center (ARC), Department of Rheumatology & Clinical Immunology, 1007 MB Amsterdam, The Netherlands.; Department of Experimental Immunology, Amsterdam Infection & Immunity Institute, Amsterdam UMC, University of Amsterdam, 1007 MB Amsterdam, The Netherlands., Ramwadhdoebe TH; Amsterdam Rheumatology & Immunology Center (ARC), Department of Rheumatology & Clinical Immunology, 1007 MB Amsterdam, The Netherlands.; Department of Experimental Immunology, Amsterdam Infection & Immunity Institute, Amsterdam UMC, University of Amsterdam, 1007 MB Amsterdam, The Netherlands., Hähnlein JS; Amsterdam Rheumatology & Immunology Center (ARC), Department of Rheumatology & Clinical Immunology, 1007 MB Amsterdam, The Netherlands.; Department of Experimental Immunology, Amsterdam Infection & Immunity Institute, Amsterdam UMC, University of Amsterdam, 1007 MB Amsterdam, The Netherlands., van Kuijk B; Amsterdam Rheumatology & Immunology Center (ARC), Department of Rheumatology & Clinical Immunology, 1007 MB Amsterdam, The Netherlands.; Department of Experimental Immunology, Amsterdam Infection & Immunity Institute, Amsterdam UMC, University of Amsterdam, 1007 MB Amsterdam, The Netherlands., Smits N; Amsterdam Rheumatology & Immunology Center (ARC), Department of Rheumatology & Clinical Immunology, 1007 MB Amsterdam, The Netherlands.; Department of Experimental Immunology, Amsterdam Infection & Immunity Institute, Amsterdam UMC, University of Amsterdam, 1007 MB Amsterdam, The Netherlands., van Lienden KP; Department of Radiology, Amsterdam UMC, University of Amsterdam, 1007 MB Amsterdam, The Netherlands., Maas M; Department of Radiology, Amsterdam UMC, University of Amsterdam, 1007 MB Amsterdam, The Netherlands., Gerlag DM; Amsterdam Rheumatology & Immunology Center (ARC), Department of Rheumatology & Clinical Immunology, 1007 MB Amsterdam, The Netherlands.; UCB Pharma, Slough SL1 3XE, UK., Tak PP; Amsterdam Rheumatology & Immunology Center (ARC), Department of Rheumatology & Clinical Immunology, 1007 MB Amsterdam, The Netherlands.; Candel Therapeutics, Needham, MA 02494, USA.; Department of Internal Medicine, Cambridge University, Cambridge CB2 0QQ, UK., de Vries N; Amsterdam Rheumatology & Immunology Center (ARC), Department of Rheumatology & Clinical Immunology, 1007 MB Amsterdam, The Netherlands.; Department of Experimental Immunology, Amsterdam Infection & Immunity Institute, Amsterdam UMC, University of Amsterdam, 1007 MB Amsterdam, The Netherlands., van Baarsen LGM; Amsterdam Rheumatology & Immunology Center (ARC), Department of Rheumatology & Clinical Immunology, 1007 MB Amsterdam, The Netherlands.; Department of Experimental Immunology, Amsterdam Infection & Immunity Institute, Amsterdam UMC, University of Amsterdam, 1007 MB Amsterdam, The Netherlands.
Jazyk:	angličtina
Zdroj:	Cells [Cells] 2022 Mar 24; Vol. 11 (7). Date of Electronic Publication: 2022 Mar 24.
DOI:	10.3390/cells11071104
Abstrakt:	Follicular T helper cells (Tfh cells) provide key B-cell help and are essential in germinal center formation and (auto) antibody generation. To gain more insight into their role during the earliest phase of rheumatoid arthritis (RA), we analyzed their frequencies, phenotypes, and cytokine profiles in peripheral blood and lymph node biopsies of healthy controls (HCs), autoantibody-positive individuals at risk for developing RA (RA-risk individuals), and early RA patients. Subsequently, we confirmed their presence in lymph nodes and synovial tissue of RA patients using immunofluorescence microscopy. In the blood, the frequency of Tfh cells did not differ between study groups. In lymphoid and synovial tissues, Tfh cells were localized in B-cell areas, and their frequency correlated with the frequency of CD19 + B cells. Compared to lymphoid tissues of healthy controls, those of RA patients and RA-risk individuals showed more CD19 + B cells, CD4 + CXCR5 + follicular helper T cells, and CD8 + CXCR5 + follicular T cells. These Tfh cells produced less IL-21 upon ex vivo stimulation. These findings suggest that Tfh cells may present a novel rationale for therapeutic targeting during the preclinical stage of RA to prevent further disease progression.
Databáze:	MEDLINE
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