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Microengineered platforms for characterizing the contractile function of in vitro cardiac models

期刊

MICROSYSTEMS & NANOENGINEERING
卷 8, 期 1, 页码 -

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SPRINGERNATURE
DOI: 10.1038/s41378-021-00344-0

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资金

  1. Canadian Institutes of Health Research (CIHR)
  2. Natural Sciences and Engineering Research Council of Canada (NSERC)
  3. National Natural Science Foundation of China (NSFC) [61933008]
  4. Canada Research Chairs Program
  5. Ted Rogers Centre for Heart Research Education Fund
  6. Wasser Family
  7. SickKids Foundation

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Heart-on-a-chip platforms show promise for establishing cardiac cell/tissue models in vitro. However, challenges remain in accurately evaluating the contractile functions of these models. Developing new platforms and technologies is essential for understanding cell/tissue physiologies, drug responses, and cardiac diseases. This review discusses recent advances in biosensing platforms and their applications in fundamental research, drug testing, and disease modeling. The challenges and future prospects of heart-on-a-chip platforms for measuring cardiac functional properties are also discussed.
Emerging heart-on-a-chip platforms are promising approaches to establish cardiac cell/tissue models in vitro for research on cardiac physiology, disease modeling and drug cardiotoxicity as well as for therapeutic discovery. Challenges still exist in obtaining the complete capability of in situ sensing to fully evaluate the complex functional properties of cardiac cell/tissue models. Changes to contractile strength (contractility) and beating regularity (rhythm) are particularly important to generate accurate, predictive models. Developing new platforms and technologies to assess the contractile functions of in vitro cardiac models is essential to provide information on cell/tissue physiologies, drug-induced inotropic responses, and the mechanisms of cardiac diseases. In this review, we discuss recent advances in biosensing platforms for the measurement of contractile functions of in vitro cardiac models, including single cardiomyocytes, 2D monolayers of cardiomyocytes, and 3D cardiac tissues. The characteristics and performance of current platforms are reviewed in terms of sensing principles, measured parameters, performance, cell sources, cell/tissue model configurations, advantages, and limitations. In addition, we highlight applications of these platforms and relevant discoveries in fundamental investigations, drug testing, and disease modeling. Furthermore, challenges and future outlooks of heart-on-a-chip platforms for in vitro measurement of cardiac functional properties are discussed.

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