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Systems biology reveals contractile dysfunction in 3D heart tissue models of diabetic cardiomyopathy, suggesting metformin may reverse changes.
Human-centric cardiac models are needed that recapitulate mechanistic and functional changes in the type 2 diabetic myocardium for understanding disease pathogenesis and developing new therapies. Using human induced pluripotent stem cell-derived cardiomyocytes (hiPSC-CM) in 2D and 3D as engineered heart tissue (EHT), we aimed to model diabetic cardiomyopathy in cellulo. Taking an unbiased systems biology approach, our cellular models recapitulated the dysregulated pathways and functional derangement of diabetic cardiomyopathy. Three-dimensional EHT models showed contractile dysfunction akin to that seen in patients, with mechanistic and functional changes reversed with metformin. It is possible to generate translationally relevant hiPSC-CM models that mimic diabetic cardiomyopathy.
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Carter et al. (2025) studied this question.
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