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Research Areas

Using Cardiosphere-Derived Stem Cells (CDC)


The research using cardiosphere-derived stem cells (CDCs) has demonstrated cells that are better in their functional repair capacity and in their angiogenic ability to secrete favorable paracrine factors, than other cells currently in clinical use. The regenerative medicine work took an unexpected and exciting turn when we realized the effects of CDCs are mediated not by canonical stem cell mechanisms, but rather by the secretion of nanovesicles called exosomes.

Exosomes Mediate the Benefits of CDC Therapy


As a result of our work, there is now virtually universal acceptance of the hypothesis that exosomes mediate the benefits of CDC therapy. Indeed, the concepts we first articulated for heart-derived cells have since been generalized to virtually all other cell types in the clinical development pathway; even pluripotent stem cell products are now acknowledged to act largely via exosome secretion. As a corollary of our work to define mechanisms of action of cardiac cell therapy, we have come to realize that exosomes are themselves viable next-generation therapeutic candidates, including treatment for various forms of muscular dystrophy.

Preserved Ejection Fraction


We initially defined the engraftment, differentiation and functional benefit of CDCs in a murine and a porcine model of myocardial infarction, then went on to publish extensively on translational and clinical aspects of CDCs, including in models of heart failure with preserved ejection fraction.

Contact the Marbán Lab

8700 Beverly Blvd.
Davis Research Building, Room 1090
Los Angeles, CA 90048