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Terminal differentiation of villus tip enterocytes is governed by distinct Tgfβ superfamily members

Berková, Linda; Fazilaty, Hassan; Yang, Qiutan; Kubovčiak, Jan; Stastna, Monika; Hrckulak, Dusan; Vojtechova, Martina; Dalessi, Tosca; Brügger, Michael David; Hausmann, George; Liberali, Prisca; Korinek, Vladimir; Basler, Konrad; Valenta, Tomas (2023). Terminal differentiation of villus tip enterocytes is governed by distinct Tgfβ superfamily members. EMBO Reports, 24(9):e56454.

Abstract

The protective and absorptive functions of the intestinal epithelium rely on differentiated enterocytes in the villi. The differentiation of enterocytes is orchestrated by sub-epithelial mesenchymal cells producing distinct ligands along the villus axis, in particular Bmps and Tgfβ. Here, we show that individual Bmp ligands and Tgfβ drive distinct enterocytic programs specific to villus zonation. Bmp4 is expressed from the centre to the upper part of the villus and activates preferentially genes connected to lipid uptake and metabolism. In contrast, Bmp2 is produced by villus tip mesenchymal cells and it influences the adhesive properties of villus tip epithelial cells and the expression of immunomodulators. Additionally, Tgfβ induces epithelial gene expression programs similar to those triggered by Bmp2. Bmp2-driven villus tip program is activated by a canonical Bmp receptor type I/Smad-dependent mechanism. Finally, we establish an organoid cultivation system that enriches villus tip enterocytes and thereby better mimics the cellular composition of the intestinal epithelium. Our data suggest that not only a Bmp gradient but also the activity of individual Bmp drives specific enterocytic programs.

Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:07 Faculty of Science > Institute of Molecular Life Sciences
Dewey Decimal Classification:570 Life sciences; biology
Scopus Subject Areas:Life Sciences > Biochemistry
Life Sciences > Molecular Biology
Life Sciences > Genetics
Language:English
Date:6 September 2023
Deposited On:17 Oct 2023 09:42
Last Modified:29 Dec 2024 02:40
Publisher:Nature Publishing Group
ISSN:1469-221X
OA Status:Hybrid
Free access at:Publisher DOI. An embargo period may apply.
Publisher DOI:https://doi.org/10.15252/embr.202256454
PubMed ID:37493498
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  • Language: English
  • Licence: Creative Commons: Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0)

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