Cytokines and regulatory T cells in ankylosing spondylitis

Aims: To investigate the correlations among cytokines and regulatory T cells (T-regs) in ankylosing spondylitis (AS) patients, and their changes after anti-tumour necrosis factor-α (TNF-α) treatment. Methods: We included 72 AS patients with detailed medical records, disease activity score (Bath Ankylosing Spondylitis Disease Activity Index), functional index (Bath Ankylosing Spondylitis Functional Index), and laboratory data (interleukin (IL)-2, IL-4, IL-10, TNF-α, interferon (IFN)-γ, transforming growth factor (TGF)-β, ESR, and CRP). Their peripheral blood mononuclear cells (PBMCs) were marked with anti-CD4, anti-CD25, and anti-FoxP3 antibodies, and triple positive T cells were gated by flow cytometry as T-regs. Their correlations were calculated and the changes after anti-TNF-α therapy were compared. Results: The frequency of T-regs in PBMCs was positively correlated to ESR and CRP in AS (r = 0.35 and 0.43; p = 0.032 and 0.027, respectively), and there was also a significant correlation between serum level of TNF-α and CRP (p = 0.041). The frequency of T-regs in PBMCs positively correlated to serum levels of TNF-α, IL-10, and TGF-β, while IL-2, IL-4, and IFN-γ showed opposite results. After anti-TNF-α treatment, there were significantly lower serum levels of TNF-α, IL-10, TGF-β, and frequency of T-regs in PBMCs among these AS patients (p = 0.026, 0.032, 0.029, and 0.037, respectively). Conclusion: In AS patients, proinflammatory cytokine may give positive feedback to induce more T-reg production and anti-inflammatory cytokine secretion to suppress this inflammatory status, and they can be reversed by anti-TNF-α therapy. However, the detailed interactions among T-regs and complex cytokine networks in autoinflammatory diseases still need more studies and further functional assay. Cite this article: Bone Joint Res 2023;12(2):133–137..

Medienart:

E-Artikel

Erscheinungsjahr:

2023

Erschienen:

2023

Enthalten in:

Zur Gesamtaufnahme - volume:12

Enthalten in:

Bone & Joint Research - 12(2023), 2, Seite 133-137

Sprache:

Englisch

Beteiligte Personen:

Hsien-Tzung Liao [VerfasserIn]
Chang-Youh Tsai [VerfasserIn]

Links:

doi.org [kostenfrei]
doaj.org [kostenfrei]
online.boneandjoint.org.uk [kostenfrei]
Journal toc [kostenfrei]

Themen:

Ankylosing spondylitis
Ankylosing spondylitis (as)
Anti-tumour necrosis factor
Anti-tumour necrosis factor-α
Blood
Crp
Cytokine
Cytokines
Diseases of the musculoskeletal system
Il-10
Inflammatory cytokines
Interleukin
Mononuclear cells
Regulatory t cell
Serum

doi:

10.1302/2046-3758.122.BJR-2022-0195.R1

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

DOAJ081061544