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Journal Article
Research Support, Non-U.S. Gov't
In-depth analysis of the relationship between bovine intestinal organoids and enteroids based on morphology and transcriptome.
Journal of Tissue Engineering and Regenerative Medicine 2022 November
Intestinal organoids and enteroids as excellent models are miniaturized and simplified for studying intestinal physiological and pathological functions, drug screening, and regenerative medicine. Recently, the application demands for organoids and enteroids in organ development and nutrition metabolism, immune and cancer research increased. But there are few comparative studies on both of them, especially in immunity and metabolism, which is also conducive to further clarifying the role of crypt stem cells and stromal cells. In our study, "natural" organoids were obtained by tissue culture from fetal bovine jejunum and enteroids were successfully isolated and cultured from organoids without supplementing exogenous factors and Matrigel. These mini-guts displayed similar features to the intestine through immunohistochemistry and transmission electron microscopy. Organoid and enteroid were systematically compared based on the transcriptome. And some of the results were verified by qRT-PCR. Our results showed KDGs (Key driver genes) (e.g., SLC13A1, HOXA7, HOXA6, HOXA5, and HOXD4) of organoids enriched in signaling pathways related to organ development and morphology and metabolism. KDGs (e.g., IL-6, PTGS2, CDH1, JUN, and EGFR) of enteroid were involved in cancer, MAPK, and immune-related signaling pathways. To the Wnt signaling pathway, highly expressed genes in organoids, including RSPO2, NOTUM, WNT6, and RSPO3, supported the homeostasis of crypt stem cells. Enteroids highly expressed CTNNB1 and WNTs. In addition, we found that organoids and enteroids carried out different functions in immunity and metabolism due to different cell compositions. Therefore, it suggested organoid is more compatible and comprehensive, and enteroid is qualified for the research of immunity and cancer.
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