Genetic and functional analyses of 120 mouse strains have identified a heart regeneration candidate gene that modulates the contractile sarcomeric apparatus. This gene, Tnni3k, controls the frequency of the mononuclear, diploid cardiomyocyte population, which affects cardiomyocyte proliferative potential after injury.
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Vujic, A., Bassaneze, V. & Lee, R. Genetic insights into mammalian heart regeneration. Nat Genet 49, 1292–1293 (2017). https://doi.org/10.1038/ng.3942
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DOI: https://doi.org/10.1038/ng.3942