Analysis of Intestinal Defensin Expression in Acute GVHD

Status Active, not recruiting

Clinical Trial Summary

This study has the aim to analyze intestinal expression of endogenous antimicrobial peptides in patients with acute GVHD. The expression will be compared to intestinal expression of defensins in patients with colitis and patients without intestinal inflammation.

Clinical Trial Description

Acute graft-versus-host disease (GVHD) is a major cause of morbidity and mortality in patients undergoing allogeneic hematopoietic cell transplantation (allo-HCT). Acute GVHD is characterized by complex deficiencies of the mucosal antimicrobial barrier and intestinal dysbiosis, which contribute to disease pathogenesis. Defensins are endogenous epithelial cell-derived antimicrobial peptides, which can protect epithelial barrier integrity, shape the intestinal microbiota composition and contribute to host immunoregulation. Deregulated expression of defensins has been reported in patients with colitis, including Chron's Disease and ulcerative colitis. In this study, the investigators aim to analyze the expression of defensins in the intestine of patients with acute GVHD to study whether it is deregulated. The results will be valuable to study the role of defensins during acute GVHD pathogenesis or as potential biomarkers for disease activity. ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details

NCT number	NCT04522843
Study type	Observational
Source	University of Freiburg
Contact
Status	Active, not recruiting
Phase
Start date	September 1, 2018
Completion date	December 31, 2024

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