Can we teach heart cells to grow up?

https://ift.tt/2xVjdtP Scientists have been trying to replace damaged heart tissue using lab-made heart-muscle cells, either injected or in patch form. But the resulting muscle doesn’t work very well because the cells are stuck in an immature stage. Using a novel CRISPR/Cas9 technique, a new study finds a master gene, Srf, that’s required for the cells to become fully fledged, contractile adult cells.

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