Fuente: WIPO "tomato" The present invention relates to the Asparagine Synthetase (Asns) gene and the role it plays in cardiomyocyte dedifferentiation and cardiac regeneration. More particularly, the invention is directed to the detection of ASNS expression as a diagnostic marker for cardiomyocyte dedifferentiation and cardiac regeneration; therapeutic up- and downregulation of ASNS expression to augment dedifferentiation-regeneration or suppress dedifferentiation-regeneration; and methods of screening for ASNS inhibitors, activators and regulators of cardiomyocyte dedifferentiation activity. Also disclosed are vectors, probes, therapeutics and kits.