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Updated: May 13, 2026
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Fecal Microbiota Transplantation via Colonoscopy for Recurrent C. difficile Infection
Published on: December 8, 2014
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Novel Microbial Engraftment Trajectories Following Microbiota Transplant Therapy in Ulcerative Colitis
Daphne Moutsoglou1,2, Aneesh Syal3, Sharon Lopez4
1Department of Gastroenterology, Minneapolis VA Health Care System, MN 55417, USA.
Journal of Crohn'S & Colitis
|September 6, 2024
Summary
Microbiota transplant therapy (MTT) effectively engrafts donor microbes in ulcerative colitis (UC) patients. SourceTracker accurately quantifies this engraftment, aiding mechanistic understanding of MTT for inflammatory conditions.
Area of Science:
- Microbiome research
- Gastroenterology
- Immunology
Background:
- Microbiota transplant therapy (MTT) is a promising treatment for ulcerative colitis (UC).
- The mechanism of MTT, particularly microbial engraftment kinetics, remains unclear.
- Understanding donor microbiota engraftment is crucial for optimizing MTT efficacy.
Purpose of the Study:
- To evaluate SourceTracker as a method for quantifying microbial engraftment in UC patients receiving MTT.
- To investigate the kinetics of donor microbiota engraftment during and after MTT.
- To correlate engraftment with clinical outcomes and microbial community structure.
Main Methods:
- Ulcerative colitis patients received either encapsulated MTT (MTP-101C) or placebo for 8 weeks.
- Amplicon sequence data from donors and patients were analyzed using the Bayesian algorithm SourceTracker.
- Engraftment was quantified by measuring donor similarity and microbial community distance.
Main Results:
- SourceTracker successfully quantified donor microbial engraftment in UC patients.
- Engraftment levels were significantly higher in the MTT group compared to placebo.
- Baseline microbial diversity negatively correlated with engraftment in treated patients.
- Engraftment kinetics were characterized from week 1 to week 12 post-treatment.
Conclusions:
- SourceTracker is a reliable method for quantifying microbial engraftment in MTT for UC.
- This method aids in understanding donor microbial contribution and optimizing therapeutic strategies.
- Findings support further investigation of MTT mechanisms in inflammatory bowel diseases.
Keywords:
EngraftmentSourceTrackerfecal microbiota transplantationmicrobiomemicrobiota transplant therapyulcerative colitisMore Related Videos
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