Intestinal epithelia maintain T cellsImmune surveillance of the intestinal epithelium is crucial for intestinal homeostasis and protecting against infection. However, how the intestinal epithelium helps induce immune surveilling intraepithelial T cells (IET) is unclear. Here, Seo, Takahashi, and Wang et al. used mouse knockout models to demonstrate that herpes virus entry mediator (HVEM), a TNFR …
Category: Gastroenterology
Modifications of Behavior and Inflammation in Mice Following Transplant with Fecal Microbiota from Children with Autism
Highlights•Modifications of behavior and inflammatory factors in mice gut-brain axis.•Key role of gut microbiota during the different developmental phases of ASD.•Fecal microbiota transplant improves ASD symptoms.AbstractAutism spectrum disorder (ASD) is a neurodevelopmental disorder displaying the modification of complex human behaviors, characterized by social interaction impairments, stereotypical/repetitive activities and emotional dysregulation. In this study, fecal microbiota …
Dual stromal targeting sensitizes pancreatic adenocarcinoma for anti-PD-1 therapy
Background and AimsThe stroma in pancreatic ductal adenocarcinoma (PDAC) contributes to its immunosuppressive nature and therapeutic resistance. Herein we sought to modify signaling and enhance immunotherapy efficacy by targeting multiple stromal components through both intracellular and extracellular mechanisms.MethodsA murine liver metastasis syngeneic model of PDAC was treated with focal adhesion kinase inhibitor (FAKi), anti-PD-1 antibody …
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Western-style Diet, pks Island-Carrying Escherichia coli, and Colorectal Cancer: Analyses from Two Large Prospective Cohort Studies
BACKGROUND AND AIMSEvidence supports a carcinogenic role of Escherichia coli carrying the polyketide synthase (pks) island that encodes enzymes for colibactin biosynthesis. We hypothesized that the association of western-style diet (rich in red and processed meat) with colorectal cancer incidence might be stronger for tumors containing higher amounts of pks+ E. coli.METHODSWestern diet score was …
Robust variation in infant gut microbiome assembly across a spectrum of lifestyles
Establishing early diversityHumans living an urbanized lifestyle in industrialized countries tend to have less diverse microbiota than people living more rural existences. Using fecal 16S ribosomal RNA sequencing, Olm et al. found that after the first 6 months of life, the microbiome of infants living in contrasting environments diverged from Bifidobacteria-dominated assemblages. Deep metagenomic sequencing …
Continue reading Robust variation in infant gut microbiome assembly across a spectrum of lifestyles
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