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2015 ; 83
(10
): 3838-46
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Fecal Microbiota Transplantation Eliminates Clostridium difficile in a Murine
Model of Relapsing Disease
#MMPMID26169276
Seekatz AM
; Theriot CM
; Molloy CT
; Wozniak KL
; Bergin IL
; Young VB
Infect Immun
2015[Oct]; 83
(10
): 3838-46
PMID26169276
show ga
Recurrent Clostridium difficile infection (CDI) is of particular concern among
health care-associated infections. The role of the microbiota in disease recovery
is apparent given the success of fecal microbiota transplantation (FMT) for
recurrent CDI. Here, we present a murine model of CDI relapse to further define
the microbiota recovery following FMT. Cefoperazone-treated mice were infected
with C. difficile 630 spores and treated with vancomycin after development of
clinical disease. Vancomycin treatment suppressed both C. difficile colonization
and cytotoxin titers. However, C. difficile counts increased within 7 days of
completing treatment, accompanied by relapse of clinical signs. The
administration of FMT immediately after vancomycin cleared C. difficile and
decreased cytotoxicity within 1 week. The effects of FMT on the gut microbiota
community were detectable in recipients 1-day posttransplant. Conversely, mice
not treated with FMT remained persistently colonized with high levels of C.
difficile, and the gut microbiota in these mice persisted at low diversity. These
results suggest that full recovery of colonization resistance against C.
difficile requires the restoration of a specific community structure.