Generation of PDGFRα+ Cardioblasts from Pluripotent Stem Cells.
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ABSTRACT: Isolating actively proliferating cardioblasts is the first crucial step for cardiac regeneration through cell implantation. However, the origin and identity of putative cardioblasts are still unclear. Here, we uncover a novel class of cardiac lineage cells, PDGFRα+Flk1- cardioblasts (PCBs), from mouse and human pluripotent stem cells induced using CsAYTE, a combination of the small molecules Cyclosporin A, the rho-associated coiled-coil kinase inhibitor Y27632, the antioxidant Trolox, and the ALK5 inhibitor EW7197. This novel population of actively proliferating cells is cardiac lineage-committed but in a morphologically and functionally immature state compared to mature cardiomyocytes. Most important, most of CsAYTE-induced PCBs spontaneously differentiated into functional αMHC+ cardiomyocytes (M+CMs) and could be a potential cellular resource for cardiac regeneration.
SUBMITTER: Hong SP
PROVIDER: S-EPMC5292955 | biostudies-literature |
REPOSITORIES: biostudies-literature
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