C. difficile colonization in infants reshapes gut development, challenging a long-held assumption
Since its discovery, the highly contagious bacterium Clostridioides difficile (C. difficile or C. diff) has been reported not to cause symptoms in infants, leading to the assumption that colonization was not a serious health issue. In a new study, researchers at Children's Hospital of Philadelphia (CHOP) are challenging that long-held assumption, with findings suggesting that the bacterium can…
A new study challenges the long-held belief that Clostridioides difficile (C. difficile) colonization in infants is harmless. Researchers at Children's Hospital of Philadelphia found that asymptomatic C. difficile infection during infancy can reshape gut development and may have long-term consequences. The study used preclinical models, human infant intestinal biopsies, and lab-grown organoids to observe the effects of early-life C. difficile colonization.
The findings, published in the journal Science, suggest that the presence of C. difficile in a healthy neonatal model caused remodeling of the gut epithelium and reshaping of the mucosal immune system, with these effects persisting into adulthood and increasing susceptibility to certain viral infections. The researchers also found similar epithelial changes in colonized human infants.
While the long-term consequences need further investigation, the study highlights the potential benefits of a maternal vaccination strategy to protect newborns against the toxin-mediated effects on the developing gut.
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