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The microbiome and IgA nephropathy.

Kei Haniuda1, Jennifer L Gommerman1, Heather N Reich2

  • 1Department of Immunology, University of Toronto, Toronto, ON, Canada.

Seminars in Immunopathology
|October 19, 2021
PubMed
Summary
This summary is machine-generated.

Immunoglobulin A nephropathy (IgAN), a common cause of kidney failure, may be linked to gut microbiota. Aberrant immune responses to these microbes could drive IgAN immunopathogenesis.

Keywords:
APRILB cellBAFFGlomerulonephritisIgA nephropathyMicrobiomePlasma cell

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Area of Science:

  • Nephrology
  • Immunology
  • Microbiology

Background:

  • Immunoglobulin A nephropathy (IgAN) is a leading cause of kidney failure worldwide, with unclear immunopathogenic mechanisms.
  • A link between infections and IgAN onset is suggested by symptoms like synpharyngitic gross hematuria, but no specific pathogen is identified.

Purpose of the Study:

  • To review the current understanding of the relationship between microbiota and IgAN development.
  • To focus on recent research linking aberrant mucosal IgA-biased immune responses to microbiota in IgAN.

Main Methods:

  • Review of current scientific literature and recent studies.
  • Focus on advances in sequencing technology for microbial community characterization.
  • Analysis of host-microbiota-immune interactions in IgAN.

Main Results:

  • Sequencing technologies reveal intricate host-microbiota interactions influencing immune responses.
  • Aberrant mucosal IgA responses to specific microbiota are increasingly implicated in IgAN.
  • These findings suggest a potential pathway for IgAN immunopathogenesis.

Conclusions:

  • The gut microbiota plays a significant role in the development of IgAN.
  • Understanding the interplay between microbiota and mucosal immunity is crucial for deciphering IgAN pathogenesis.
  • Further research into microbiota-targeted therapies may offer new treatment strategies for IgAN.