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Multipotent Embryonic Isl1+ Progenitor Cells Lead to Cardiac, Smooth Muscle, and Endothelial Cell Diversification

  • Alessandra Moretti
  • , Leslie Caron
  • , Atsushi Nakano
  • , Jason T. Lam
  • , Alexandra Bernshausen
  • , Yinhong Chen
  • , Yibing Qyang
  • , Lei Bu
  • , Mika Sasaki
  • , Silvia Martin-Puig
  • , Yunfu Sun
  • , Sylvia M. Evans
  • , Karl Ludwig Laugwitz
  • , Kenneth R. Chien
  • Massachusetts General Hospital
  • Technical University of Munich
  • University of California San Diego
  • University of California
  • Harvard Medical School
  • Harvard Stem Cell Institute

Research output: Contribution to journalArticlepeer-review

893 Scopus citations

Abstract

Cardiogenesis requires the generation of endothelial, cardiac, and smooth muscle cells, thought to arise from distinct embryonic precursors. We use genetic fate-mapping studies to document that isl1+ precursors from the second heart field can generate each of these diverse cardiovascular cell types in vivo. Utilizing embryonic stem (ES) cells, we clonally amplified a cellular hierarchy of isl1+ cardiovascular progenitors, which resemble the developmental precursors in the embryonic heart. The transcriptional signature of isl1+/Nkx2.5+/flk1+ defines a multipotent cardiovascular progenitor, which can give rise to cells of all three lineages. These studies document a developmental paradigm for cardiogenesis, where muscle and endothelial lineage diversification arises from a single cell-level decision of a multipotent isl1+ cardiovascular progenitor cell (MICP). The discovery of ES cell-derived MICPs suggests a strategy for cardiovascular tissue regeneration via their isolation, renewal, and directed differentiation into specific mature cardiac, pacemaker, smooth muscle, and endothelial cell types.

Original languageEnglish
Pages (from-to)1151-1165
Number of pages15
JournalCell
Volume127
Issue number6
DOIs
StatePublished - 15 Dec 2006

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