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An image-based transcriptomic atlas of the mouse gut reveals spatial, regional, and microbiota-dependent fine-tuning

GSE297799 Mus musculus Expression profiling by high throughput sequencing 4 samples Submitted 2025/07/18 Platform GPL19057
Summary
The gastrointestinal tract (GI) is a remarkably complex environment comprising a diverse array of cell types, microbes, and bioactive small molecules. To shed new light on how the gut is organized and senses its environment, we constructed a spatially resolved single-cell atlas of the mouse lower digestive tract using MERFISH with a specific focus on the thousands of receptors involved in small molecule sensation and microbial pattern recognition. We identified expected and novel cell types and charted their spatial organization across four GI regions. In addition, we discovered receptor expression gradients and heterogeneity cued by spatial location, and overall revealed divergent sensing capabilities across gut cell types, regions, and spatial contexts. In addition, we charted the remodeling of these features that occurs in the absence of the microbiome. Our atlas opens a new window into the molecular and cellular organization of gut sensation, which, given the pharmacological relevance of many receptors, may provide a clinically relevant resource.
Published in
An image-based transcriptomics atlas reveals the regional and microbiota-dependent molecular, cellular, and spatial structure of the murine gut
Xu RJ, Zhang H, Cadinu P et al. · Cell host & microbe 2026 · PMID 41720094 · doi:10.1016/j.chom.2026.01.018
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Also filed as BioProject PRJNA1266202 and SRA study SRP586917. Searching any of these in the dataset finder brings you back here.

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