Long- and short-term effects of fecal microbiota transplantation on antibiotic resistance genes : results from a randomized placebo-controlled trial

In small series, third-party fecal microbiota transplantation (FMT) has been successful in decolonizing the gut from clinically relevant antibiotic resistance genes (ARGs). Less is known about the short- and long-term effects of FMT on larger panels of ARGs. We analyzed 226 pre- and post-treatment stool samples from a randomized placebo-controlled trial of FMT in 100 patients undergoing allogeneic hematopoietic cell transplantation or receiving anti-leukemia induction chemotherapy for 47 ARGs. These patients have heavy antibiotic exposure and a high incidence of colonization with multidrug-resistant organisms. Samples from each patient spanned a period of up to 9 months, allowing us to describe both short- and long-term effects of FMT on ARGs, while the randomized design allowed us to distinguish between spontaneous changes vs. FMT effect. We find an overall bimodal pattern. In the first phase (days to weeks after FMT), low-level transfer of ARGs largely associated with commensal healthy donor microbiota occurs. This phase is followed by long-term resistance to new ARGs as stable communities with colonization resistance are formed after FMT. The clinical implications of these findings are likely context-dependent and require further research. In the setting of cancer and intensive therapy, long-term ARG decolonization could translate into fewer downstream infections.

Medienart:

E-Artikel

Erscheinungsjahr:

2024

Erschienen:

2024

Enthalten in:

Zur Gesamtaufnahme - volume:16

Enthalten in:

Gut microbes - 16(2024), 1 vom: 15. Jan., Seite 2327442

Sprache:

Englisch

Beteiligte Personen:

Rashidi, Armin [VerfasserIn]
Ebadi, Maryam [VerfasserIn]
Rehman, Tauseef Ur [VerfasserIn]
Elhusseini, Heba [VerfasserIn]
Kazadi, David [VerfasserIn]
Halaweish, Hossam [VerfasserIn]
Khan, Mohammad H [VerfasserIn]
Hoeschen, Andrea [VerfasserIn]
Cao, Qing [VerfasserIn]
Luo, Xianghua [VerfasserIn]
Kabage, Amanda J [VerfasserIn]
Lopez, Sharon [VerfasserIn]
Holtan, Shernan G [VerfasserIn]
Weisdorf, Daniel J [VerfasserIn]
Liu, Chang [VerfasserIn]
Ishii, Satoshi [VerfasserIn]
Khoruts, Alexander [VerfasserIn]
Staley, Christopher [VerfasserIn]

Links:

Volltext

Themen:

Acute myeloid leukemia
Anti-Bacterial Agents
Antibiotic resistance gene
Fecal microbiota transplantation
Hematopoietic cell transplantation
Journal Article
Randomized Controlled Trial

Anmerkungen:

Date Completed 15.03.2024

Date Revised 16.03.2024

published: Print-Electronic

Citation Status MEDLINE

doi:

10.1080/19490976.2024.2327442

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM369681819