bioRxiv preprint doi: https://doi.org/10.1101/388926; this version posted August 9, 2018. The copyright holder for this preprint (which was not certified by peer review) is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity. It is made available under aCC-BY-NC-ND 4.0 International license. Resource Are these cardiomyocytes? Protocol development reveals impact of sample preparation on the accuracy of identifying cardiomyocytes by flow cytometry Matthew Waas1, Ranjuna Weerasekera1, Erin M. Kropp1, Marisol Romero-Tejeda2,3, Ellen Poon4, Kenneth R. Boheler4,5,6, Paul W. Burridge2,3, Rebekah L. Gundry1,7 1Department of Biochemistry, Medical College of Wisconsin, Milwaukee, WI 53226, USA 2Department of Pharmacology, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA 3Center for Pharmacogenomics, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA 4School of Biomedical Sciences, LKS Faculty of Medicine, The University of Hong Kong, Hong Kong, China. 5Division of Cardiology, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA. 6Department of Biomedical Engineering, The Johns Hopkins University, Baltimore, MD 21205, USA. 7Center for Biomedical Mass Spectrometry Research, Medical College of Wisconsin, Milwaukee, WI 53226, USA Corresponding author: Rebekah L. Gundry, PhD Department of Biochemistry Medical College of Wisconsin 8701 Watertown Plank Road Milwaukee, WI, 53226 Telephone: 414-955-2825 Fax: 414-955-6568 Email:
[email protected] Running Title: Standard flow cytometry protocol for assessing stem cell-derived cardiomyocytes bioRxiv preprint doi: https://doi.org/10.1101/388926; this version posted August 9, 2018. The copyright holder for this preprint (which was not certified by peer review) is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity.