Cited by 35Congenital heart defects researchDevelopmental Biology and Gene RegulationPluripotent Stem Cells Research

Myocardial Bmp2 gain causes ectopic EMT and promotes cardiomyocyte proliferation and immaturity

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Prados, Belén, Gómez-Apiñániz, Paula, Papoutsi, Tania, Luxán, Guillermo, Zaffran, Stephane, Pérez-Pomares, José María, de la Pompa, José Luis·2018·Cell Death & Disease

Abstract

During mammalian heart development, restricted myocardial Bmp2 expression is a key patterning signal for atrioventricular canal specification and the epithelial–mesenchyme transition that gives rise to the valves. Using a mouse transgenic line conditionally expressing Bmp2 , we show that widespread Bmp2 expression in the myocardium leads to valve and chamber dysmorphogenesis and embryonic death by E15.5. Transgenic embryos show thickened valves, ventricular septal defect, enlarged trabeculae and dilated ventricles, with an endocardium able to undergo EMT both in vivo and in vitro. Gene profiling and marker analysis indicate that cellular proliferation is increased in transgenic embryos, whereas chamber maturation and patterning are impaired. Similarly, forced Bmp2 expression stimulates proliferation and blocks cardiomyocyte differentiation of embryoid bodies. These data show that widespread myocardial Bmp2 expression directs ectopic valve primordium formation and maintains ventricular myocardium and cardiac progenitors in a primitive, proliferative state, identifying the potential of Bmp2 in the expansion of immature cardiomyocytes.

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Crossref · 10.1038/s41419-018-0442-z

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  • In the Bmp2fl/fl;Nkx2-5-cre phenotype, AV cushions and mesenchyme are absent due to failure to initiate EndMT.

    “This is in line with the Bmp2fl/fl;Nkx2-5-cre phenotype, where AV cushions and mesenchyme are absent due to the failure to initiate EndMT10,58.”

    From Cell diversity and plasticity during atrioventricular heart valve EMTs (2023) · cites this paper as [58]

    The Results section on rescue of AVC specification reports an AVC specification defect in Nkx2.5Cre;Bmp2flox/flox mutants and shows that restoring Bmp2 rescues it (page unavailable). It does not state that AV cushions and mesenchyme are absent in those mutants or establish failure to initiate EndMT as the cause. The reported abundant cushion mesenchyme belongs to a different, Bmp2-overexpressing genotype. (LLM, conf=0.83)

    Experimental — accuracy not yet measured
  • Myocardial cues are predicted as the main drivers of EndMT.

    “Of note, myocardial cues are predicted as the main drivers of EndMT (Supplementary Fig. 7b), which agrees with previous analyses that assessed AV identity induction7,58.”

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Research works printed but not linked: 1

  1. [19]Luna-Zurita L Integration of a Notch-dependent mesenchymal gene program and Bmp2-driven cell invasiveness regulates murine cardiac valve formation J. Clin. Invest. 2010 120 3493 3507 10.1172/JCI42666 20890042 PMC2947227 · DOI

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Authors
Prados, B., Gómez-Apiñániz, P., Papoutsi, T., Luxán, G., Zaffran, S., Pérez-Pomares, J. M., & de la Pompa, J. L.
Affiliations
  • Spanish National Centre for Cardiovascular Research (ES)
  • Inserm (FR)
  • Andalusian Centre for Nanomedicine and Biotechnology (ES)
Venue
Cell Death & Disease
Published
2018-03-14
Volume
9
Issue
3
Pages
399-399
ISSN
2041-4889 (ISSN-L)
OpenAlex
W2791856025
Cited by
35
References
49
Citations by year
2026: 3 · 2025: 2 · 2024: 6 · 2023: 5 · 2022: 7 · 2021: 7 · 2020: 2 · 2019: 2 · 2018: 1
FWCI
1.07
Type
journal article
Language
en
Open access
Locations
  • Cell Death and Disease (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • RISalud Institutional Health Repository of Andalucía (submittedVersion, cc-by)
  • HAL (submittedVersion, other-oa)
  • LA Referencia (Red Federada de Repositorios Institucionales de Publicaciones Científicas) (submittedVersion, cc-by)
  • LA Referencia (Red Federada de Repositorios Institucionales de Publicaciones Científicas) (submittedVersion, other-oa)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion)
Funders
  • Fundación BBVA (BIO14_298)
  • Banco Bilbao Vizcaya Argentaria
  • Centro Nacional de Investigaciones Cardiovasculares (SEV‐2015‐0505)
  • Ministerio de Asuntos Económicos y Transformación Digital, Gobierno de España (RD16/0011/0021, SAF2016-78370-R, CB16/11/00399, SEV-2015-0505)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Congenital heart defects research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Developmental Biology and Gene Regulation
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Pluripotent Stem Cells Research
Keywords
BMP-2, myocardium, epithelial-mesenchymal transition, valve development, atrioventricular canal, ventricular septal defect, cardiomyocyte proliferation, cardiomyocyte differentiation, cardiac progenitor cells, heart development, embryonic lethality, embryoid bodies
MeSH terms
Animals, Heart, Mice, Transgenic, Myocardium, Signal Transduction, Gene Expression Regulation, Developmental, Myocytes, Cardiac, Cell Proliferation, Mice, Bone Morphogenetic Protein 2, Epithelial-Mesenchymal Transition

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