Fungal Dysbiosis in Children with Celiac Disease

Mohammad El Mouzan1, Abdulrahman Al-Hussaini2, Brian Fanelli3

  • 1Department of Pediatrics (Gastroenterology), King Saud University, P O Box 2925, Riyadh, 11461, Saudi Arabia. melmouzan@ksu.edu.sa.

Abstract

Insights

Children with new-onset celiac disease (CeD) show altered gut fungi, indicating potential fungal dysbiosis. This suggests fungi may play a role in the development of CeD in children.

Area of Science:

  • Gastroenterology
  • Immunology
  • Microbiome Research

Background:

  • Intestinal fungi interact with the immune system.
  • The link between gut fungi and childhood celiac disease (CeD) is understudied.
  • CeD is an immune-mediated condition affecting the small intestine.

Purpose of the Study:

  • To characterize the gut fungal microbiota in children with newly diagnosed CeD.
  • To compare fungal profiles between children with CeD and healthy controls.

Main Methods:

  • Metagenomics analysis of mucosal and fecal samples from children with CeD and controls.
  • Illumina HiSeq sequencing for fungal microbiota community analysis.
  • Bioinformatic analysis including diversity metrics (Shannon, PCoA) and differential abundance testing (DESeq).

Main Results:

  • Fungal dysbiosis observed in children with CeD.
  • Increased abundance of taxa such as Tricholomataceae, Saccharomyces cerevisiae, and Candida in CeD patients.
  • Decreased abundance of Pichia kudriavzevii and Pneumocystis jirovecii in CeD patients.
  • No significant difference in alpha diversity; distinct separation between mucosal and fecal fungal communities.

Conclusions:

  • Gut fungal dysbiosis is associated with new-onset childhood celiac disease.
  • Fungi may contribute to the pathogenesis of CeD.
  • Further longitudinal studies are required to confirm these findings and elucidate the functional role of fungi in CeD.

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