Cardiomyocyte Generation
Cardiomyocyte Generation - Related Videos
13:18
Generation of Human Cardiomyocytes: A Differentiation Protocol from Feeder-free Human Induced Pluripotent Stem Cells
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Cited by 15 •
2013
Pluripotent stem cells, either embryonic or induced pluripotent stem (iPS) cells, constitute a valuable source of human differentiated cells, including cardiomyocytes. Here, we will focus on cardiac induction of iPS cells, showing how to use them to obtain functional human cardiomyocytes through an embryoid bodies-based protocol.
10:05
Improved Generation of Induced Cardiomyocytes Using a Polycistronic Construct Expressing Optimal Ratio of Gata4, Mef2c and Tbx5
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Cited by 35 •
2015
We describe here a protocol for the generation of iCMs using retrovirus-mediated delivery of Gata4, Tbx5 and Mef2c in a polycistronic construct. This protocol yields a relatively homogeneous population of reprogrammed cells with improved efficiency and quality and is valuable for future studies of iCM reprogramming.
08:03
Simultaneous Assessment of Cardiomyocyte DNA Synthesis and Ploidy: A Method to Assist Quantification of Cardiomyocyte Regeneration and Turnover
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Cited by 25 •
2016
Quantification of cardiomyocyte turnover is challenging. The protocol described here makes an important contribution to this challenge by enabling accurate and sensitive quantification of neo-cardiomyocyte nuclei generation and nuclei ploidy.
07:50
Isolation and Culture of Neonatal Mouse Cardiomyocytes
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Cited by 187 •
2013
Primary mouse cardiomyocyte cultures are one of the pivotal tools for the investigation of myofibrillar organization and function. The following protocol describes the isolation and culture of primary cardiomyocytes from neonatal mouse hearts. The resulting cardiomyocyte cultures may be subsequently used for a variety of biomechanical, biochemical and cell-biological assays.
07:05
Isolation and Cryopreservation of Neonatal Rat Cardiomyocytes
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Cited by 49 •
2015
The isolation of neonatal rat cardiomyocytes is a time consuming and unpredictable procedure. This study describes methods for cryopreservation and thawing of neonatal rat cardiomyocytes that allows for more efficient use of cells. The thawed NRCMs can be used for various experiments without the need for performing isolations each time.
FAQs
Wnt signaling must be regulated in sequence rather than held constantly active or inactive. Its activation supports progression toward mesoderm formation, while subsequent inhibition helps direct cells toward cardiac specification. The timing and intensity of these changes influence how efficiently cultures acquire a cardiac identity, making Wnt control a central variable in experimental differentiation systems.
Mesoderm formation is an early developmental transition that places cells within a broad embryonic lineage capable of producing several tissue types. Cardiac specification follows by narrowing that potential toward heart muscle cells. Separating these stages helps researchers organize signaling conditions according to developmental progression instead of attempting to induce cardiomyocyte characteristics in a single undifferentiated step.
Maturation conditions encourage newly specified cells to develop beyond an initial cardiac identity. Defined culture conditions are used to guide this later phase and influence the properties of the resulting cardiomyocytes. This stage is especially important because laboratory-generated cells may remain less mature than native heart muscle, limiting how accurately they reproduce adult cardiac structure and function.
Laboratory systems can begin with stem cells, progenitor cells, or other differentiated cell types, depending on the experimental design. These sources may differ in how researchers guide them through mesoderm formation and cardiac specification. Identifying the starting population is therefore important when interpreting generation efficiency, cell characteristics, and the relevance of the resulting model to a particular biological question.
A typical workflow guides the starting cells through mesoderm formation, adjusts Wnt pathway activity to promote cardiac specification, and then places the developing cells under defined maturation conditions. Researchers evaluate the resulting cardiomyocytes in relation to the intended experiment. This staged approach connects developmental signaling with later cell maturation rather than treating generation as a single culture step.
Generated cardiomyocytes provide experimental models for studying heart development, inherited cardiac disease, acquired cardiac disease, and drug-induced toxicity. They can also support therapy testing and investigations in tissue engineering or regenerative medicine. Their value depends on how closely they reproduce relevant cardiac features, since limited maturity, structural organization, and functional integration can affect interpretation.