Assertion: transplanted stem cell | /r/CapableOf | release other molecules
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text: However, this model has been recently supplanted by the idea that transplanted stem cells release growth factors and other molecules that promote blood vessel formation (angiogenesis) or stimulate quot;residentquot; cardiac stem cells to repair damage.12–14 Additional mechanisms for stem-cell mediated heart repair, including strengthening of the post-infarct scar15 and the fusion of donor cells with host cardiomyocytes,16 have also been proposed.