Impact of gut microbiota on gut-distal autoimmunity

a focus on T cells

Maran L. Sprouse, Nicholas A. Bates, Krysta M. Felix, Hsin-Jung Joyce Wu

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

The immune system is essential for maintaining a delicate balance between eliminating pathogens and maintaining tolerance to self-tissues to avoid autoimmunity. An enormous and complex community of gut microbiota provides essential health benefits to the host, particularly by regulating immune homeostasis. Many of the metabolites derived from commensals can impact host health by directly regulating the immune system. Many autoimmune diseases arise from an imbalance between pathogenic effector T cells and regulatory T (Treg) cells. Recent interest has emerged in understanding how cross-talk between gut microbiota and the host immune system promotes autoimmune development by controlling the differentiation and plasticity of T helper and Treg cells. At the molecular level, our recent study, along with others, demonstrates that asymptomatic colonization by commensal bacteria in the gut is capable of triggering autoimmune disease by molecular mimicking self-antigen and skewing the expression of dual T-cell receptors on T cells. Dysbiosis, an imbalance of the gut microbiota, is involved in autoimmune development in both mice and humans. Although it is well known that dysbiosis can impact diseases occurring within the gut, growing literature suggests that dysbiosis also causes the development of gut-distal/non-gut autoimmunity. In this review, we discuss recent advances in understanding the potential molecular mechanisms whereby gut microbiota induces autoimmunity, and the evidence that the gut microbiota triggers gut-distal autoimmune diseases.

Original languageEnglish (US)
JournalImmunology
DOIs
StateAccepted/In press - Jan 1 2019

Fingerprint

Autoimmunity
Dysbiosis
Regulatory T-Lymphocytes
T-Lymphocytes
Autoimmune Diseases
Immune System
Autoantigens
Insurance Benefits
Helper-Inducer T-Lymphocytes
T-Cell Antigen Receptor
Homeostasis
Gastrointestinal Microbiome
Bacteria
Health

Keywords

  • autoimmunity
  • microbiota
  • mucosal immunology
  • T cell

ASJC Scopus subject areas

  • Immunology and Allergy
  • Immunology

Cite this

Impact of gut microbiota on gut-distal autoimmunity : a focus on T cells. / Sprouse, Maran L.; Bates, Nicholas A.; Felix, Krysta M.; Wu, Hsin-Jung Joyce.

In: Immunology, 01.01.2019.

Research output: Contribution to journalArticle

Sprouse, Maran L. ; Bates, Nicholas A. ; Felix, Krysta M. ; Wu, Hsin-Jung Joyce. / Impact of gut microbiota on gut-distal autoimmunity : a focus on T cells. In: Immunology. 2019.
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