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Expansions of CD4+CD28-and CD8+CD28-T cells in Granulomatosis with Polyangiitis and Microscopic Polyangiitis Are Associated with Cytomegalovirus Infection But Not with Disease Activity
Linköping University, Department of Clinical and Experimental Medicine, Rheumatology. Linköping University, Faculty of Health Sciences. Östergötlands Läns Landsting, Heart and Medicine Centre, Department of Nephrology UHL.ORCID iD: 0000-0002.3555-7162
Linköping University, Department of Clinical and Experimental Medicine. Linköping University, Faculty of Health Sciences.
Linköping University, Department of Clinical and Experimental Medicine, Clinical Immunology. Linköping University, Faculty of Health Sciences. Östergötlands Läns Landsting, Centre for Diagnostics, Department of Clinical Immunology and Transfusion Medicine.
2012 (English)In: Journal of Rheumatology, ISSN 0315-162X, E-ISSN 1499-2752, Vol. 39, no 9, 1840-1843 p.Article in journal (Refereed) Published
Abstract [en]

Objective. T helper cells lacking CD28 (CD4+CD28-) have been implicated in the pathogenesis of granulomatosis with polyangiitis (Wegener; GPA) and microscopic polyangiitis (MPA). Expansions of CD4+CD28- and CD8+CD28- T cells have also been associated with latent cytomegalovirus (CMV) infection. We assessed these T cells with and without coexpression of CD56 and CD57 in relation to vasculitis as well as CMV status. less thanbrgreater than less thanbrgreater thanMethods. Blood from 16 patients in remission (12 GPA, 4 MPA), 18 patients with active vasculitis (12 GPA, 6 MPA), and 20 healthy controls was examined by flow cytometry for expression of CD4, CD8, CD56, CD57, and CD28 on T cells. The influence of age, CMV status, presence of disease, and disease activity on T cell subpopulations was tested with multiple regression analyses. less thanbrgreater than less thanbrgreater thanResults. In active vasculitis, the total numbers and proportion of lymphocytes were decreased. Total numbers of CD4+, CD8+, CD4+CD28-, CD8+CD28-, CD4+CD57+, and CD8+CD57+ T subpopulations were decreased to the same extent, implying unchanged proportions. Multivariate analyses showed no associations between vasculitis and CD28- or CD57+ T subpopulations, whereas immunoglobulin G antibodies to CMV were associated with expanded proportions of CD28 and CD57+ T cells, in both the CD4+ and the CD8+ compartments. less thanbrgreater than less thanbrgreater thanConclusion. CD28- and CD57+ T cells were associated with latent CMV infection and not with a diagnosis of GPA or MPA. Vasculitis assessment should include CMV status.

Place, publisher, year, edition, pages
Journal of Rheumatology , 2012. Vol. 39, no 9, 1840-1843 p.
Keyword [en]
VASCULITIS, T CELL, CD28, CD56, CYTOMEGALOVIRUS, ANTINEUTROPHIL CYTOPLASMIC ANTIBODIES
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Medical and Health Sciences
Identifiers
URN: urn:nbn:se:liu:diva-84744DOI: 10.3899/jrheum.120060ISI: 000308774000014OAI: oai:DiVA.org:liu-84744DiVA: diva2:561491
Note

Funding Agencies|Ingrid Asp||Broderna Karlsson foundations for medical research||County Council of Ostergotland||Linkoping University Hospital||

Available from: 2012-10-19 Created: 2012-10-19 Last updated: 2017-12-07

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Eriksson, PerErnerudh, Jan

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RheumatologyFaculty of Health SciencesDepartment of Nephrology UHLDepartment of Clinical and Experimental MedicineClinical ImmunologyDepartment of Clinical Immunology and Transfusion Medicine
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