Gut microbiota and acute graft-versus-host disease

Area of Science:

• Immunology
• Microbiology
• Hematology

Background:

• Allogeneic stem cell transplantation (allo-SCT) offers curative potential for hematological diseases.
• Acute graft-versus-host disease (GVHD) remains a significant challenge, impacting patient morbidity and mortality.
• The gut microbiota's role in modulating immune responses is increasingly recognized.

Purpose of the Study:

• To explore the association between gut microbiota and acute GVHD development in allo-SCT.
• To investigate the potential of modulating gut microbiota as a therapeutic strategy for acute GVHD.
• To review emerging therapies targeting gut dysbiosis for improved transplant outcomes.

Main Methods:

• Review of preclinical and clinical studies on gut microbiota in allo-SCT.
• Analysis of the impact of gut microbiota composition on GVHD pathogenesis.
• Evaluation of current and future therapeutic interventions for gut dysbiosis.

Main Results:

• Preclinical and clinical data strongly link gut microbiota composition to acute GVHD incidence and severity.
• Gut dysbiosis is associated with adverse outcomes following allo-SCT.
• Modulating the gut microbiota presents a potential novel therapeutic avenue.

Conclusions:

• Targeting gut microbiota dysbiosis is a promising strategy for managing acute GVHD.
• Therapies such as probiotics, fecal microbiota transplantation, and nutritional interventions warrant further investigation.
• Optimizing gut microbiota may improve overall transplant success in hematological disease patients.