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CNS & Neurological Disorders - Drug Targets

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ISSN (Print): 1871-5273
ISSN (Online): 1996-3181

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General Research Article

T Lymphocyte Interferon-gamma Response to Anaplasmataceae-related Major Surface Proteins and Ankyrin A in Fibromyalgia

Author(s): Basant K. Puri*, Rosemarie Preyer, Gary S. Lee and Armin Schwarzbach

Volume 23, Issue 11, 2024

Published on: 16 February, 2024

Page: [1392 - 1399] Pages: 8

DOI: 10.2174/0118715273274091231207101522

Price: $65

Abstract

Background: The aetiology of fibromyalgia is unknown; its symptoms may be related to a T-lymphocyte-mediated response to infectious organisms.

Objectives: First, to test the hypothesis that fibromyalgia is associated with increased interferon (IFN)-γ-secreting T-lymphocytes after stimulation with Anaplasmataceae-related major surface proteins (MSPs) and the macromolecular translocation type IV secretion system effector ankyrin repeat domain-containing protein A (AnkA). Second, to ascertain the relationship in fibromyalgia between (i) the IFN-γ-secreting T-lymphocyte response to stimulation with Anaplasmataceae-related MSPs and AnkA, and (ii) co-infection by Borrelia and Yersinia spp., and antinuclear antibodies.

Methods: Using a case-control design, patients fulfilling the American College of Rheumatology revised criteria for fibromyalgia, and controls, underwent the following blinded assessments: (i) enzyme- linked immune absorbent spot (ELISpot) IFN-γ release assay of T-lymphocyte reactivity to Anaplasmataceae-related MSPs and AnkA; (ii) ELISpot IFN-γ release assays of T-lymphocyte reactivity to three Borrelia antigens, namely Borrelia burgdorferi full antigen (B31); peptide mix (from Borrelia burgdorferi sensu stricto, Borrelia afzelii, Borrelia garinii); and Borrelia burgdorferi lymphocyte function-associated antigen-1; (iii) immunoglobulin (Ig) A assay by enzyme-linked immunosorbent assay (ELISA) of antibodies to Yersinia spp.; (iv) IgG (ELISA) antibodies to Yersinia spp.; (v) serum antinuclear antibodies (immunofluorescence).

Results: The groups were age- and sex-matched. The mean (standard error) value of IFN-γ release for the fibromyalgia group was 1.52 (0.26), compared with 1.00 (0.22) for the controls. Generalised linear modelling (p<0.001) of IFN-γ release in the fibromyalgia patients showed significant main effects of all three indices of Borrelia infection and of antinuclear antibodies.

Conclusion: Anaplasmataceae may play an aetiological role in fibromyalgia.

Keywords: Anaplasma, Anaplasmataceae, antinuclear antibodies, Ehrlichia, enzyme-linked immune absorbent spot, fibromyalgia.

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