Cardiomyocyte Specification
Cardiomyocyte Specification - Related Videos
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.
12:10
Measuring Fast Calcium Fluxes in Cardiomyocytes
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Cited by 3 •
2011
We present a method to isolate rapid (microsecond) calcium events from slower fluxes in living cells using laser scanning confocal microscopy. The method measures fluorescence intensity fluctuations of calcium indicators by recording line scans of several hundred pixels in a cell. Histogram analysis allows us to isolate the time scales of different calcium fluxes.
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.
08:42
Isolation, Culture and Transduction of Adult Mouse Cardiomyocytes
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Cited by 35 •
2016
This protocol describes a step-by-step method for the reproducible isolation and long-term culture of adult mouse cardiomyocytes with high yield, purity, and viability.
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, BMP, and FGF pathways act as coordinated developmental signals that guide mesodermal cells toward a cardiac fate. Their combined activity helps establish the conditions in which cardiac progenitor cells begin the molecular transition toward heart muscle identity. This signaling framework is important for understanding how embryonic heart formation is directed and for designing stem-cell differentiation strategies.
NKX2-5, GATA4, and MEF2C function as transcription factors that activate cardiomyocyte-specific genes. Their activity converts signaling information received by cardiac progenitor cells into a gene-expression program associated with heart muscle cells. Examining these factors therefore helps researchers track cardiac fate acquisition and study the molecular control of heart development.
Coordination links extracellular developmental signals with the activation of cardiac genes. Wnt, BMP, and FGF signaling guide mesodermal cells toward a cardiac fate, while transcription factors such as NKX2-5, GATA4, and MEF2C establish the corresponding molecular program. Studying this relationship clarifies how embryonic patterning contributes to the formation of cells required for heart function.
The specification process establishes the cellular and molecular foundation needed for heart formation and function. Cardiac progenitor cells must acquire a heart muscle identity through pathway-driven signaling and activation of cardiomyocyte-specific genes. In biology research, this connection allows investigators to examine early developmental events that ultimately support the structure and activity of the heart.
Directed differentiation applies developmental knowledge to guide pluripotent stem cells toward a cardiomyocyte fate. Researchers use the signaling and transcriptional principles identified in embryonic development as a framework for producing heart muscle cells in the laboratory. This approach provides cells for investigating cardiac development, modeling disease, and evaluating potential therapies.
Studies of cardiomyocyte specification can examine how cardiac progenitors acquire heart muscle identity and how disruptions in that process relate to inherited or acquired cardiac disease. Laboratory-generated cardiomyocytes also support disease modeling and the screening of potential therapies. These applications connect developmental biology with experimental efforts to understand and address cardiac disorders.
Cardiomyocyte specification is relevant to regenerative medicine because it provides a developmental framework for producing cardiomyocytes from pluripotent stem cells. Understanding the signals and transcription factors associated with cardiac fate can support efforts to generate suitable heart muscle cells for research and future therapeutic development, while also linking basic embryology to strategies for addressing cardiac damage.