1. Cell Biology
  2. Developmental Biology
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The transcription factor Rreb1 regulates epithelial architecture, invasiveness and vasculogenesis in early mouse embryos

  1. Sophie M Morgani  Is a corresponding author
  2. Jie Su
  3. Jennifer Nichols
  4. Joan Massagué
  5. Anna-Katerina Hadjantonakis  Is a corresponding author
  1. Memorial Sloan Kettering Cancer Center, United States
  2. University of Cambridge, United Kingdom
  3. Memorial Sloan-Kettering Cancer Center, United States
Research Article
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Cite this article as: eLife 2021;10:e64811 doi: 10.7554/eLife.64811

Abstract

Ras-responsive element-binding protein 1 (Rreb1) is a zinc-finger transcription factor acting downstream of RAS signaling. Rreb1 has been implicated in cancer and Noonan-like RASopathies. However, little is known about its role in mammalian non-disease states. Here, we show that Rreb1 is essential for mouse embryonic development. Loss of Rreb1 led to a reduction in the expression of vasculogenic factors, cardiovascular defects and embryonic lethality. During gastrulation, the absence of Rreb1 also resulted in the upregulation of cytoskeleton-associated genes, a change in the organization of F-ACTIN and adherens junctions within the pluripotent epiblast, and perturbed epithelial architecture. Moreover, Rreb1 mutant cells ectopically exited the epiblast epithelium through the underlying basement membrane, paralleling cell behaviors observed during metastasis. Thus, disentangling the function of Rreb1 in development should shed light on its role in cancer and other diseases involving loss of epithelial integrity.

Data availability

Sequencing data have been deposited in GEO under accession codes GSE148514. Source data files for Figure 3 have been provided.

The following data sets were generated
The following previously published data sets were used

Article and author information

Author details

  1. Sophie M Morgani

    Developmental Biology Program, Memorial Sloan Kettering Cancer Center, New York, United States
    For correspondence
    morganis@mskcc.org
    Competing interests
    The authors declare that no competing interests exist.
    ORCID icon "This ORCID iD identifies the author of this article:" 0000-0002-4290-1080
  2. Jie Su

    Cancer Biology and Genetics Program, Memorial Sloan Kettering Cancer Center, New York, United States
    Competing interests
    The authors declare that no competing interests exist.
  3. Jennifer Nichols

    Wellcome Trust-MRC Center for Stem Cell Research, University of Cambridge, Cambridge, United Kingdom
    Competing interests
    The authors declare that no competing interests exist.
  4. Joan Massagué

    Cancer Biology and Genetics Program, Memorial Sloan-Kettering Cancer Center, New York, United States
    Competing interests
    The authors declare that no competing interests exist.
    ORCID icon "This ORCID iD identifies the author of this article:" 0000-0001-9324-8408
  5. Anna-Katerina Hadjantonakis

    Developmental Biology Program, Memorial Sloan Kettering Cancer Center, New York, United States
    For correspondence
    hadj@mskcc.org
    Competing interests
    The authors declare that no competing interests exist.
    ORCID icon "This ORCID iD identifies the author of this article:" 0000-0002-7580-5124

Funding

Wellcome Trust (110151/Z/15/Z)

  • Sophie M Morgani

National Institutes of Health (R01HD094868,R01DK084391,P30CA008748)

  • Anna-Katerina Hadjantonakis

The funders had no role in study design, data collection and interpretation, or the decision to submit the work for publication.

Ethics

Animal experimentation: Animal experimentation: Animal experimentation: All mice used in this study were maintained in accordance with the guidelines of the Memorial Sloan Kettering Cancer Center (MSKCC) Institutional Animal Care and Use Committee (IACUC) under protocol number 03-12-017 (PI Hadjantonakis).

Reviewing Editor

  1. Lilianna Solnica-Krezel, Washington University School of Medicine, United States

Publication history

  1. Received: November 11, 2020
  2. Accepted: April 16, 2021
  3. Accepted Manuscript published: April 30, 2021 (version 1)

Copyright

© 2021, Morgani et al.

This article is distributed under the terms of the Creative Commons Attribution License permitting unrestricted use and redistribution provided that the original author and source are credited.

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