Modeling cardiac pathology in Duchenne muscular dystrophy in iPSC-derived engineered heart tissue

Investigators: Samantha Bremner, David Mack, Nathan Sniadecki

Cardiac disease is the leading cause of death in Duchenne muscular dystrophy. We differentiate human induced pluripotent stem cells bearing DMD dystrophin mutations to create 3-dimensional cardiac tissue. These are mounted suspended between rigid and flexible posts, so that extent of deflection of the flexible post provides a measure of the force of muscle contraction, revealing DMD-associated defects in contractile force and beat rate.

Beating human cardiomyocytes differentiated from induced pluripotent stem cells
Calcium transients in contracting post-mounted human 3D engineered heart tissue differentiated from induced pluripotent stem cells