A research team led by Jared Churko, PhD, director of the University of Arizona iPSC Core in the UA Sarver Heart Center, used a transcriptomic approach — studying what genes are expressed — to identify gene signatures of cell subpopulations identified as atrial-like or ventricular-like. This understanding could lead to regenerative therapy discoveries for the millions of people living with damaged heart muscle caused by heart attacks or other chronic heart conditions.