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Interleukin-4 suppresses the proliferation and alters the gene expression in enteroids

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Abstract

Interleukin (IL)-4 is known as a cytokine mainly involved in allergy and inflammation, but recent studies have suggested that IL-4 plays a part in the differentiation process of various cells. Since the effect of IL-4 on intestinal epithelial cells, particularly cryptic cells including stem cells, is poorly understood, we investigated IL-4-induced changes in intestinal epithelial cells using mouse jejunal organoids called enteroids. IL-4 treatment decreased cell proliferation, the expression of the stem cell markers leucine-rich repeat-containing G protein-coupled receptor 5 (Lgr5) and olfactomedin 4 (Olfm4), and Lgr5-positive cells in enteroids. Among the differentiation markers, IL-4 significantly decreased the gene expression levels of the Paneth cell markers lysozyme 1 (Lyz1) and regenerating islet-derived protein 3 gamma (Reg3γ). A fluorescent immunostaining showed that IL-4 attenuated the emission and fluorescence intensity derived from lysozyme, which is enriched in Paneth cells. These results suggest that functional changes in Paneth cells caused by IL-4 may contribute to the reduction in Lgr5-positive cells and proliferative activity. IL-4 may affects gut function by altering the proliferation and the gene expression in enteroids.

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Acknowledgements

We express our gratitude to Dr. Hans Clevers (Hubrecht Institute) for the kind gift of the Noggin-secreting cell line, Dr. Eitaro Aihara (Cincinnati University) for kindly donating the R-spondin-secreting cell line, and Dr. Tokiyoshi Ayabe (Hokkaido University) for kind gift of anti-lysozyme antibody.

Funding

This work was supported by Japan Society for the Promotion of Science (JSPS) Grant-in-Aid for JSPS fellows Grant Number JP18J22466.

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YS, KI, MT, Makoto Shimizu, and KK designed the experiments. YS, Mika Sato, and AI performed the experiments. YS, KI, Makoto Shimizu, and KK wrote the paper.

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Correspondence to Kazuo Kobayashi-Hattori.

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The authors declare that they have no conflict of interest.

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Saito, Y., Iwatsuki, K., Inaba, A. et al. Interleukin-4 suppresses the proliferation and alters the gene expression in enteroids. Cytotechnology 72, 479–488 (2020). https://doi.org/10.1007/s10616-020-00395-7

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  • DOI: https://doi.org/10.1007/s10616-020-00395-7

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