Intestinal histological findings in patients with spondyloarthritis: a study of the relationship with disease

Juliana Simioni1, Thelma Skare2, Sergio Ioshii3

  • 1Internal Medicine, Federal University of Paraná.

Insights

The gut microbiome and asymptomatic bowel inflammation are linked to spondyloarthritis (SpA) development. This suggests a gut-joint axis where gut-originating immune cells may drive SpA pathogenesis.

Area of Science:

  • Immunology
  • Gastroenterology
  • Rheumatology

Background:

  • The link between the gut microbiome and spondyloarthritis (SpA) is an emerging area of research.
  • Subclinical bowel inflammation is frequently observed in SpA patients, often asymptomatic.
  • The gut-joint axis hypothesis proposes that gut-derived immune cells contribute to SpA.

Purpose of the Study:

  • To explore the role of the intestinal microbiome in the development of spondyloarthritis (SpA).
  • To investigate the significance of subclinical bowel inflammation in SpA etiology.
  • To examine the evidence supporting the gut-joint axis hypothesis in SpA.

Main Methods:

  • Review of current literature on the gut microbiome, bowel inflammation, and SpA.
  • Analysis of findings from ileocolonoscopy in SpA patient cohorts.
  • Examination of immunological studies investigating cell origins in SpA.

Main Results:

  • A significant proportion of SpA patients (around 65%) exhibit asymptomatic ileocolonic inflammation.
  • The intestinal microbiome composition may influence SpA development.
  • Immune cells, including monocytes and T cells, implicated in joint inflammation in SpA may originate from the gut.

Conclusions:

  • The intestinal microbiome and subclinical bowel inflammation are critical factors in spondyloarthritis pathogenesis.
  • The gut-joint axis provides a framework for understanding the connection between gut health and SpA.
  • Further research into gut-targeted therapies for SpA is warranted.

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