期刊
CELL BIOLOGY AND TOXICOLOGY
卷 39, 期 1, 页码 145-163出版社
SPRINGER
DOI: 10.1007/s10565-022-09742-0
关键词
Cardiac reporter; Drug toxicity screening; Biomaterial tracking and cytocompatibility tool; 2D/3D cardiotoxicity testing
Human induced pluripotent stem cell derived cardiomyocytes (hiPSC-CMs) have great potential in the cardiovascular field. By using CRISPR-Cas9 genome editing technology, researchers have generated a cardiac-specific hiPSC reporter line that differentiates into fluorescent CMs, allowing for non-invasive tracking and functional phenotyping. This versatile imaging tool has significant potential in disease modeling, drug screening, and cytocompatibility analysis of hiPSC-CMs cultured in biomaterial scaffolds.
Human induced pluripotent stem cell derived cardiomyocytes (hiPSC-CMs) hold great potential in the cardiovascular field for human disease modeling, drug development, and regenerative medicine. However, multiple hurdles still exist for the effective utilization of hiPSC-CMs as a human-based experimental platform that can be an alternative to the current animal models. To further expand their potential as a research tool and bridge the translational gap, we have generated a cardiac-specific hiPSC reporter line that differentiates into fluorescent CMs using CRISPR-Cas9 genome editing technology. The CMs illuminated with the mScarlet fluorescence enable their non-invasive continuous tracking and functional cellular phenotyping, offering a real-time 2D/3D imaging platform. Utilizing the reporter CMs, we developed an imaging-based cardiotoxicity screening system that can monitor distinct drug-induced structural toxicity and CM viability in real time. The reporter fluorescence enabled visualization of sarcomeric disarray and displayed a drug dose-dependent decrease in its fluorescence. The study also has demonstrated the reporter CMs as a biomaterial cytocompatibility analysis tool that can monitor dynamic cell behavior and maturity of hiPSC-CMs cultured in various biomaterial scaffolds. This versatile cardiac imaging tool that enables real time tracking and high-resolution imaging of CMs has significant potential in disease modeling, drug screening, and toxicology testing.
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