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Loss of murine Paneth cell function alters the immature intestinal microbiome and mimics changes seen in neonatal necrotizing enterocolitis
Journal article   Open access

Loss of murine Paneth cell function alters the immature intestinal microbiome and mimics changes seen in neonatal necrotizing enterocolitis

Steven J Mcelroy, Shiloh R Lueschow, Jessica Stumphy, Huiyu Gong, Stacy L Kern, Timothy G Elgin, Mark A Underwood, Karen M Kalanetra, David A Mills, Melissa H Wong, …
PLoS One, Vol.13(10), pp.e0204967-e0204967
10/01/2018
DOI: 10.1371/journal.pone.0204967
PMCID: PMC6166990
PMID: 30273395
url
https://doi.org/10.1371/journal.pone.0204967View
Published (Version of record) Open Access

Abstract

Necrotizing enterocolitis (NEC) remains the leading cause of gastrointestinal morbidity and mortality in premature infants. Human and animal studies suggest a role for Paneth cells in NEC pathogenesis. Paneth cells play critical roles in host-microbial interactions and epithelial homeostasis. The ramifications of eliminating Paneth cell function on the immature host-microbial axis remains incomplete. Paneth cell function was depleted in the immature murine intestine using chemical and genetic models, which resulted in intestinal injury consistent with NEC. Paneth cell depletion was confirmed using histology, electron microscopy, flow cytometry, and real time RT-PCR. Cecal samples were analyzed at various time points to determine the effects of Paneth cell depletion with and without Klebsiella gavage on the microbiome. Deficient Paneth cell function induced significant compositional changes in the cecal microbiome with a significant increase in Enterobacteriacae species. Further, the bloom of Enterobacteriaceae species that occurs is phenotypically similar to what is seen in human NEC. This further strengthens our understanding of the importance of Paneth cells to intestinal homeostasis in the immature intestine.
Medical Microbiology Digestive System Microbiology Genomics Bacteria Genetics Anatomy Cell Biology Klebsiella Gastrointestinal Tract Science Paneth Cells Organisms Microbial Genomics Bacterial Pathogens Pathology and Laboratory Medicine Cell Processes Cell Death Research Article Enterobacteriaceae Pathogens Cellular Types Medicine and Health Sciences Epithelial Cells Microbial Pathogens Epithelium Medicine Autophagic Cell Death Biology and Life Sciences Biological Tissue Animal Cells Microbiome Small Intestine

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