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Metabolic Maturation Media Improve Physiological Function of Human iPSC-Derived Cardiomyocytes

  • Dries A M Feyen
  • , Wesley L McKeithan
  • , Arne A N Bruyneel
  • , Sean Spiering
  • , Larissa Hörmann
  • , Bärbel Ulmer
  • , Hui Zhang
  • , Francesca Briganti
  • , Michaela Schweizer
  • , Bence Hegyi
  • , Zhandi Liao
  • , Risto-Pekka Pölönen
  • , Kenneth S Ginsburg
  • , Chi Keung Lam
  • , Ricardo Serrano
  • , Christine Wahlquist
  • , Alexander Kreymerman
  • , Michelle Vu
  • , Prashila L Amatya
  • , Charlotta S Behrens
  • Sara Ranjbarvaziri, Renee G C Maas, Matthew Greenhaw, Daniel Bernstein, Joseph C Wu, Donald M Bers, Thomas Eschenhagen, Christian M Metallo, Mark Mercola

Research output: Contribution to journalArticleAcademicpeer-review

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Abstract

Induced pluripotent stem cell-derived cardiomyocytes (iPSC-CMs) have enormous potential for the study of human cardiac disorders. However, their physiological immaturity severely limits their utility as a model system and their adoption for drug discovery. Here, we describe maturation media designed to provide oxidative substrates adapted to the metabolic needs of human iPSC (hiPSC)-CMs. Compared with conventionally cultured hiPSC-CMs, metabolically matured hiPSC-CMs contract with greater force and show an increased reliance on cardiac sodium (Na+) channels and sarcoplasmic reticulum calcium (Ca2+) cycling. The media enhance the function, long-term survival, and sarcomere structures in engineered heart tissues. Use of the maturation media made it possible to reliably model two genetic cardiac diseases: long QT syndrome type 3 due to a mutation in the cardiac Na+ channel SCN5A and dilated cardiomyopathy due to a mutation in the RNA splicing factor RBM20. The maturation media should increase the fidelity of hiPSC-CMs as disease models.

Original languageEnglish
Article number107925
JournalCell Reports
Volume32
Issue number3
DOIs
Publication statusPublished - 21 Jul 2020

Keywords

  • cardiomyocyte
  • dilated cardiomyopathy
  • disease modeling
  • engineered heart tissues
  • induced pluripotent stem cells
  • long QT syndrome 3
  • maturation
  • physiology

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