Implications of Microbiota and Immune System in Development and Progression of Metabolic Dysfunction-Associated

Jelena Popov1, Tijana Despot2, David Avelar Rodriguez3

  • 1Boston Combined Residency Program, Boston Children's Hospital & Boston Medical Center, Boston, MA 02115, USA.

Nutrients
|June 19, 2024
PubMed

Insights

Metabolic dysfunction-associated steatotic liver disease (MASLD) involves liver fat accumulation. Gut microbes influence MASLD and metabolic dysfunction-associated steatohepatitis (MASH), suggesting microbiome-targeted therapies may offer new treatment avenues.

Area of Science:

  • Hepatology
  • Microbiology
  • Immunology

Background:

  • Metabolic dysfunction-associated steatotic liver disease (MASLD) is a global health concern.
  • Its pathophysiology involves multiple factors, including diet, genetics, metabolic issues, and the gut microbiome.
  • Current management relies on lifestyle changes, with no definitive cure available.

Purpose of the Study:

  • To review the role of the intestinal microbiome in MASLD and metabolic dysfunction-associated steatohepatitis (MASH) pathogenesis.
  • To identify key microbial taxa associated with these liver conditions.
  • To discuss the potential of microbiome-targeted therapies for MASLD/MASH management.

Main Methods:

  • Literature review focusing on the interplay between gut microbiota, the immune system, and liver disease.
  • Synthesis of evidence on microbial contributions to lipid accumulation, inflammation, and fibrosis in MASLD/MASH.
  • Analysis of current and emerging microbial-targeted therapeutic strategies.

Main Results:

  • The gut microbiome significantly influences MASLD and MASH development and progression.
  • Specific microbial taxa are implicated in the pathogenesis of these liver diseases.
  • Emerging therapies like probiotics, antibiotics, and fecal microbiota transplantation show promise.

Conclusions:

  • The gut microbiome is a critical factor in MASLD and MASH.
  • Understanding microbial-host interactions is key to developing novel therapeutic strategies.
  • Microbiome-targeted interventions represent a promising frontier for MASLD/MASH treatment.