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- W4200493335 abstract "The three types of interferon (IFN) have roles in antimicrobial immunity and inflammation that must be properly balanced to maintain tissue homeostasis. For example, IFNs are elevated in the context of inflammatory bowel disease and may synergize with inflammatory cytokines such as tumor necrosis factor alpha (TNFα) to promote tissue damage. Prior studies suggest that in mouse intestinal epithelial cells (IECs), type III IFNs are preferentially produced during viral infections and are less cytotoxic than type I IFN. Here, we generated human IEC organoid lines from biopsies of ileum, ascending colon, and sigmoid colon of three healthy subjects to establish the baseline responses of normal human IECs to types I, II, and III IFN. We found that all IFN types elicited responses that were qualitatively consistent across intestinal biopsy sites. However, IFN types differed in magnitude of STAT1 phosphorylation and identity of genes in their downstream transcriptional programs. Specifically, there was a core transcriptional module shared by IFN types, but types I and II IFN stimulated unique transcriptional modules beyond this core gene signature. The transcriptional modules of type I and II IFN included pro-apoptotic genes, and expression of these genes correlated with potentiation of TNFα cytotoxicity. These data define the response profiles of healthy human IEC organoids across IFN types, and suggest that cytotoxic effects mediated by TNFα in inflamed tissues may be amplified by a simultaneous high-magnitude IFN response." @default.
- W4200493335 created "2021-12-31" @default.
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- W4200493335 date "2021-12-13" @default.
- W4200493335 modified "2023-09-26" @default.
- W4200493335 title "Transcriptional and Cytotoxic Responses of Human Intestinal Organoids to Interferon Types I, II, and III" @default.
- W4200493335 doi "https://doi.org/10.1101/2021.12.11.472223" @default.
- W4200493335 hasPublicationYear "2021" @default.
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