Pathogenic Potential of Hic1-Expressing Cardiac Stromal Progenitors

Hesham Soliman, Ben Paylor, R. Wilder Scott, Dario R. Lemos, Chih Kai Chang, Martin Arostegui, Marcela Low, Christina Lee, Daniela Fiore, Paola Braghetta, Vendula Pospichalova, Christina E. Barkauskas, Vladimir Korinek, Alessandra Rampazzo, Kathleen MacLeod, T. Michael Underhill, Fabio M.V. Rossi*

*Autor correspondiente de este trabajo

Producción científica: Contribución a una revistaArtículorevisión exhaustiva

51 Citas (Scopus)

Resumen

The cardiac stroma contains multipotent mesenchymal progenitors. However, lineage relationships within cardiac stromal cells are poorly defined. Here, we identified heart-resident PDGFRa+ SCA-1+ cells as cardiac fibro/adipogenic progenitors (cFAPs) and show that they respond to ischemic damage by generating fibrogenic cells. Pharmacological blockade of this differentiation step with an anti-fibrotic tyrosine kinase inhibitor decreases post-myocardial infarction (post-MI) remodeling and leads to improvement in cardiac function. In the undamaged heart, activation of cFAPs through lineage-specific deletion of the gene encoding the quiescence-associated factor HIC1 reveals additional pathogenic potential, causing fibrofatty infiltration within the myocardium and driving major pathological features pathognomonic in arrhythmogenic cardiomyopathy (AC). In this regard, cFAPs contribute to multiple pathogenic cell types within cardiac tissue and therapeutic strategies aimed at modifying their activity are expected to have tremendous benefit for the treatment of diverse cardiac diseases.

Idioma originalInglés
Páginas (desde-hasta)205-220.e8
PublicaciónCell Stem Cell
Volumen26
N.º2
DOI
EstadoPublicada - 2020
Publicado de forma externa

Nota bibliográfica

Publisher Copyright:
© 2019 Elsevier Inc.

Áreas temáticas de ASJC Scopus

  • Medicina molecular
  • Genética
  • Biología celular

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