Stromal DLK1 promotes proliferation and inhibits differentiation of the intestinal epithelium during development

The stem/progenitor cells of the developing intestine are biologically distinct from their adult counterparts. Here, we examine the microenvironmental cues that regulate the embryonic stem/progenitor population, focusing on the role of Notch pathway factor delta-like protein-1 (DLK1). mRNA-seq analy...

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Veröffentlicht in:American journal of physiology: Gastrointestinal and liver physiology 2021-04, Vol.320 (4), p.G506-G520
Hauptverfasser: Ichinose, Mari, Suzuki, Nobumi, Wang, Tongtong, Wright, Josephine A, Lannagan, Tamsin R M, Vrbanac, Laura, Kobayashi, Hiroki, Gieniec, Krystyna A, Ng, Jia Q, Hayakawa, Yoku, García-Gallastegui, Patricia, Monsalve, Eva M, Bauer, Steven R, Laborda, Jorge, García-Ramírez, J J, Ibarretxe, Gaskon, Worthley, Daniel L, Woods, Susan L
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container_end_page G520
container_issue 4
container_start_page G506
container_title American journal of physiology: Gastrointestinal and liver physiology
container_volume 320
creator Ichinose, Mari
Suzuki, Nobumi
Wang, Tongtong
Wright, Josephine A
Lannagan, Tamsin R M
Vrbanac, Laura
Kobayashi, Hiroki
Gieniec, Krystyna A
Ng, Jia Q
Hayakawa, Yoku
García-Gallastegui, Patricia
Monsalve, Eva M
Bauer, Steven R
Laborda, Jorge
García-Ramírez, J J
Ibarretxe, Gaskon
Worthley, Daniel L
Woods, Susan L
description The stem/progenitor cells of the developing intestine are biologically distinct from their adult counterparts. Here, we examine the microenvironmental cues that regulate the embryonic stem/progenitor population, focusing on the role of Notch pathway factor delta-like protein-1 (DLK1). mRNA-seq analyses of intestinal mesenchymal cells (IMCs) collected from embryonic day 14.5 (E14.5) or adult IMCs and a novel coculture system with E14.5 intestinal epithelial organoids were used. Following addition of recombinant DLK1 (rDLK) or siRNA ( ), epithelial characteristics were compared using imaging, replating efficiency assays, qPCR, and immunocytochemistry. The intestinal phenotypes of littermate and mice were compared using immunohistochemistry. Using transcriptomic analyses, we identified morphogens derived from the embryonic mesenchyme that potentially regulate the developing epithelial cells, to focus on Notch family candidate DLK1. Immunohistochemistry indicated that DLK1 was expressed exclusively in the intestinal stroma at E14.5 at the top of emerging villi, decreased after birth, and shifted to the intestinal epithelium in adulthood. In coculture experiments, addition of rDLK1 to adult IMCs inhibited organoid differentiation, whereas knockdown in embryonic IMCs increased epithelial differentiation to secretory lineage cells. mice had restricted Ki67 cells in the villi base and increased secretory lineage cells compared with embryos. Mesenchyme-derived DLK1 plays an important role in the promotion of epithelial stem/precursor expansion and prevention of differentiation to secretory lineages in the developing intestine. Using a novel coculture system, transcriptomics, and transgenic mice, we investigated differential molecular signaling between the intestinal epithelium and mesenchyme during development and in the adult. We show that the Notch pathway factor delta-like protein-1 (DLK1) is stromally produced during development and uncover a new role for DLK1 in the regulation of intestinal epithelial stem/precursor expansion and differentiation to secretory lineages.
doi_str_mv 10.1152/ajpgi.00445.2020
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Here, we examine the microenvironmental cues that regulate the embryonic stem/progenitor population, focusing on the role of Notch pathway factor delta-like protein-1 (DLK1). mRNA-seq analyses of intestinal mesenchymal cells (IMCs) collected from embryonic day 14.5 (E14.5) or adult IMCs and a novel coculture system with E14.5 intestinal epithelial organoids were used. Following addition of recombinant DLK1 (rDLK) or siRNA ( ), epithelial characteristics were compared using imaging, replating efficiency assays, qPCR, and immunocytochemistry. The intestinal phenotypes of littermate and mice were compared using immunohistochemistry. Using transcriptomic analyses, we identified morphogens derived from the embryonic mesenchyme that potentially regulate the developing epithelial cells, to focus on Notch family candidate DLK1. Immunohistochemistry indicated that DLK1 was expressed exclusively in the intestinal stroma at E14.5 at the top of emerging villi, decreased after birth, and shifted to the intestinal epithelium in adulthood. In coculture experiments, addition of rDLK1 to adult IMCs inhibited organoid differentiation, whereas knockdown in embryonic IMCs increased epithelial differentiation to secretory lineage cells. mice had restricted Ki67 cells in the villi base and increased secretory lineage cells compared with embryos. Mesenchyme-derived DLK1 plays an important role in the promotion of epithelial stem/precursor expansion and prevention of differentiation to secretory lineages in the developing intestine. Using a novel coculture system, transcriptomics, and transgenic mice, we investigated differential molecular signaling between the intestinal epithelium and mesenchyme during development and in the adult. 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Here, we examine the microenvironmental cues that regulate the embryonic stem/progenitor population, focusing on the role of Notch pathway factor delta-like protein-1 (DLK1). mRNA-seq analyses of intestinal mesenchymal cells (IMCs) collected from embryonic day 14.5 (E14.5) or adult IMCs and a novel coculture system with E14.5 intestinal epithelial organoids were used. Following addition of recombinant DLK1 (rDLK) or siRNA ( ), epithelial characteristics were compared using imaging, replating efficiency assays, qPCR, and immunocytochemistry. The intestinal phenotypes of littermate and mice were compared using immunohistochemistry. Using transcriptomic analyses, we identified morphogens derived from the embryonic mesenchyme that potentially regulate the developing epithelial cells, to focus on Notch family candidate DLK1. Immunohistochemistry indicated that DLK1 was expressed exclusively in the intestinal stroma at E14.5 at the top of emerging villi, decreased after birth, and shifted to the intestinal epithelium in adulthood. In coculture experiments, addition of rDLK1 to adult IMCs inhibited organoid differentiation, whereas knockdown in embryonic IMCs increased epithelial differentiation to secretory lineage cells. mice had restricted Ki67 cells in the villi base and increased secretory lineage cells compared with embryos. Mesenchyme-derived DLK1 plays an important role in the promotion of epithelial stem/precursor expansion and prevention of differentiation to secretory lineages in the developing intestine. Using a novel coculture system, transcriptomics, and transgenic mice, we investigated differential molecular signaling between the intestinal epithelium and mesenchyme during development and in the adult. 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Suzuki, Nobumi ; Wang, Tongtong ; Wright, Josephine A ; Lannagan, Tamsin R M ; Vrbanac, Laura ; Kobayashi, Hiroki ; Gieniec, Krystyna A ; Ng, Jia Q ; Hayakawa, Yoku ; García-Gallastegui, Patricia ; Monsalve, Eva M ; Bauer, Steven R ; Laborda, Jorge ; García-Ramírez, J J ; Ibarretxe, Gaskon ; Worthley, Daniel L ; Woods, Susan L</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c393t-d6411c2c1b89c987174341f5d91e852b032bfbd45c63939fa05aa884b65cfd033</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2021</creationdate><topic>Animals</topic><topic>Calcium-Binding Proteins - deficiency</topic><topic>Calcium-Binding Proteins - genetics</topic><topic>Calcium-Binding Proteins - metabolism</topic><topic>Cell Communication</topic><topic>Cell Differentiation</topic><topic>Cell Lineage</topic><topic>Cell Proliferation</topic><topic>Cells, Cultured</topic><topic>Coculture Techniques</topic><topic>Embryo cells</topic><topic>Embryonic Stem Cells - enzymology</topic><topic>Epithelial cells</topic><topic>Epithelial Cells - enzymology</topic><topic>Epithelium</topic><topic>Gene Expression Regulation, Developmental</topic><topic>Immunocytochemistry</topic><topic>Immunohistochemistry</topic><topic>Intestinal Mucosa - embryology</topic><topic>Intestinal Mucosa - enzymology</topic><topic>Intestine</topic><topic>Mesenchyme</topic><topic>Mice</topic><topic>Mice, 129 Strain</topic><topic>Mice, Inbred C57BL</topic><topic>Mice, Knockout</topic><topic>Organoids</topic><topic>Phenotypes</topic><topic>Preadipocyte factor 1</topic><topic>Progenitor cells</topic><topic>Secretory Pathway</topic><topic>Signal Transduction</topic><topic>siRNA</topic><topic>Stem Cell Niche</topic><topic>Stem cells</topic><topic>Stroma</topic><topic>Stromal Cells - enzymology</topic><topic>Transcriptome</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Ichinose, Mari</creatorcontrib><creatorcontrib>Suzuki, Nobumi</creatorcontrib><creatorcontrib>Wang, Tongtong</creatorcontrib><creatorcontrib>Wright, Josephine A</creatorcontrib><creatorcontrib>Lannagan, Tamsin R M</creatorcontrib><creatorcontrib>Vrbanac, Laura</creatorcontrib><creatorcontrib>Kobayashi, Hiroki</creatorcontrib><creatorcontrib>Gieniec, Krystyna A</creatorcontrib><creatorcontrib>Ng, Jia Q</creatorcontrib><creatorcontrib>Hayakawa, Yoku</creatorcontrib><creatorcontrib>García-Gallastegui, Patricia</creatorcontrib><creatorcontrib>Monsalve, Eva M</creatorcontrib><creatorcontrib>Bauer, Steven R</creatorcontrib><creatorcontrib>Laborda, Jorge</creatorcontrib><creatorcontrib>García-Ramírez, J J</creatorcontrib><creatorcontrib>Ibarretxe, Gaskon</creatorcontrib><creatorcontrib>Worthley, Daniel L</creatorcontrib><creatorcontrib>Woods, Susan L</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><jtitle>American journal of physiology: Gastrointestinal and liver physiology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Ichinose, Mari</au><au>Suzuki, Nobumi</au><au>Wang, Tongtong</au><au>Wright, Josephine A</au><au>Lannagan, Tamsin R M</au><au>Vrbanac, Laura</au><au>Kobayashi, Hiroki</au><au>Gieniec, Krystyna A</au><au>Ng, Jia Q</au><au>Hayakawa, Yoku</au><au>García-Gallastegui, Patricia</au><au>Monsalve, Eva M</au><au>Bauer, Steven R</au><au>Laborda, Jorge</au><au>García-Ramírez, J J</au><au>Ibarretxe, Gaskon</au><au>Worthley, Daniel L</au><au>Woods, Susan L</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Stromal DLK1 promotes proliferation and inhibits differentiation of the intestinal epithelium during development</atitle><jtitle>American journal of physiology: Gastrointestinal and liver physiology</jtitle><addtitle>Am J Physiol Gastrointest Liver Physiol</addtitle><date>2021-04-01</date><risdate>2021</risdate><volume>320</volume><issue>4</issue><spage>G506</spage><epage>G520</epage><pages>G506-G520</pages><issn>0193-1857</issn><eissn>1522-1547</eissn><abstract>The stem/progenitor cells of the developing intestine are biologically distinct from their adult counterparts. Here, we examine the microenvironmental cues that regulate the embryonic stem/progenitor population, focusing on the role of Notch pathway factor delta-like protein-1 (DLK1). mRNA-seq analyses of intestinal mesenchymal cells (IMCs) collected from embryonic day 14.5 (E14.5) or adult IMCs and a novel coculture system with E14.5 intestinal epithelial organoids were used. Following addition of recombinant DLK1 (rDLK) or siRNA ( ), epithelial characteristics were compared using imaging, replating efficiency assays, qPCR, and immunocytochemistry. The intestinal phenotypes of littermate and mice were compared using immunohistochemistry. Using transcriptomic analyses, we identified morphogens derived from the embryonic mesenchyme that potentially regulate the developing epithelial cells, to focus on Notch family candidate DLK1. Immunohistochemistry indicated that DLK1 was expressed exclusively in the intestinal stroma at E14.5 at the top of emerging villi, decreased after birth, and shifted to the intestinal epithelium in adulthood. In coculture experiments, addition of rDLK1 to adult IMCs inhibited organoid differentiation, whereas knockdown in embryonic IMCs increased epithelial differentiation to secretory lineage cells. mice had restricted Ki67 cells in the villi base and increased secretory lineage cells compared with embryos. Mesenchyme-derived DLK1 plays an important role in the promotion of epithelial stem/precursor expansion and prevention of differentiation to secretory lineages in the developing intestine. Using a novel coculture system, transcriptomics, and transgenic mice, we investigated differential molecular signaling between the intestinal epithelium and mesenchyme during development and in the adult. We show that the Notch pathway factor delta-like protein-1 (DLK1) is stromally produced during development and uncover a new role for DLK1 in the regulation of intestinal epithelial stem/precursor expansion and differentiation to secretory lineages.</abstract><cop>United States</cop><pub>American Physiological Society</pub><pmid>33470182</pmid><doi>10.1152/ajpgi.00445.2020</doi><orcidid>https://orcid.org/0000-0002-3988-2499</orcidid><orcidid>https://orcid.org/0000-0002-8955-2017</orcidid></addata></record>
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subjects Animals
Calcium-Binding Proteins - deficiency
Calcium-Binding Proteins - genetics
Calcium-Binding Proteins - metabolism
Cell Communication
Cell Differentiation
Cell Lineage
Cell Proliferation
Cells, Cultured
Coculture Techniques
Embryo cells
Embryonic Stem Cells - enzymology
Epithelial cells
Epithelial Cells - enzymology
Epithelium
Gene Expression Regulation, Developmental
Immunocytochemistry
Immunohistochemistry
Intestinal Mucosa - embryology
Intestinal Mucosa - enzymology
Intestine
Mesenchyme
Mice
Mice, 129 Strain
Mice, Inbred C57BL
Mice, Knockout
Organoids
Phenotypes
Preadipocyte factor 1
Progenitor cells
Secretory Pathway
Signal Transduction
siRNA
Stem Cell Niche
Stem cells
Stroma
Stromal Cells - enzymology
Transcriptome
title Stromal DLK1 promotes proliferation and inhibits differentiation of the intestinal epithelium during development
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