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Human iPSC-based cardiac microphysiological system for drug screening applications.


ABSTRACT: Drug discovery and development are hampered by high failure rates attributed to the reliance on non-human animal models employed during safety and efficacy testing. A fundamental problem in this inefficient process is that non-human animal models cannot adequately represent human biology. Thus, there is an urgent need for high-content in vitro systems that can better predict drug-induced toxicity. Systems that predict cardiotoxicity are of uppermost significance, as approximately one third of safety-based pharmaceutical withdrawals are due to cardiotoxicty. Here, we present a cardiac microphysiological system (MPS) with the attributes required for an ideal in vitro system to predict cardiotoxicity: i) cells with a human genetic background; ii) physiologically relevant tissue structure (e.g. aligned cells); iii) computationally predictable perfusion mimicking human vasculature; and, iv) multiple modes of analysis (e.g. biological, electrophysiological, and physiological). Our MPS is able to keep human induced pluripotent stem cell derived cardiac tissue viable and functional over multiple weeks. Pharmacological studies using the cardiac MPS show half maximal inhibitory/effective concentration values (IC??/EC??) that are more consistent with the data on tissue scale references compared to cellular scale studies. We anticipate the widespread adoption of MPSs for drug screening and disease modeling.

SUBMITTER: Mathur A 

PROVIDER: S-EPMC4352848 | biostudies-other | 2015 Mar

REPOSITORIES: biostudies-other

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Human iPSC-based cardiac microphysiological system for drug screening applications.

Mathur Anurag A   Loskill Peter P   Shao Kaifeng K   Huebsch Nathaniel N   Hong SoonGweon S   Marcus Sivan G SG   Marks Natalie N   Mandegar Mohammad M   Conklin Bruce R BR   Lee Luke P LP   Healy Kevin E KE  

Scientific reports 20150309


Drug discovery and development are hampered by high failure rates attributed to the reliance on non-human animal models employed during safety and efficacy testing. A fundamental problem in this inefficient process is that non-human animal models cannot adequately represent human biology. Thus, there is an urgent need for high-content in vitro systems that can better predict drug-induced toxicity. Systems that predict cardiotoxicity are of uppermost significance, as approximately one third of sa  ...[more]

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