Myocardial Renewal
Myocardial Renewal - Related Videos
05:58
The use of SC1 (Pluripotin) to Support mESC Self-renewal in the Absence of LIF
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Cited by 7 •
2009
SC1 functions through dual inhibition of Ras- GAP and ERK1. We tested the function of SC1 in supporting mouse ES cell self-renewal in the absence of LIF and showed that SC1 is able to maintain self-renewal of mouse ES cell cultures.
07:45
Acute Myocardial Infarction in Rats
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Cited by 103 •
2011
The rat model of acute myocardial infarction (AMI) is useful to study the consequence of a MI on cardiac pathophysiological and physiological function.
11:09
Generation of Aligned Functional Myocardial Tissue Through Microcontact Printing
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Cited by 19 •
2013
The generation of aligned myocardial tissue is a key requirement for adapting the recent advances in stem cell biology to clinically useful purposes. Herein we describe a microcontact printing approach for the precise control of cell shape and function. Using highly purified populations of embryonic stem cell derived cardiac progenitors, we then generate anisotropic functional myocardial tissue.
08:23
LAD-Ligation: A Murine Model of Myocardial Infarction
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Cited by 81 •
2009
This video demonstrates how to use a fast and reliable model to study pathobiological and pathophysiological processes of myocardial ischemia.
09:45
Histological Quantification of Chronic Myocardial Infarct in Rats
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Cited by 13 •
2016
The post-mortem assessment of myocardial infarction (MI) in rodents is based on quantification of the infarct on stained heart sections. We describe an accurate method to quantify the infarct size using systematic sampling of harvested rat hearts from base to apex and image analyses of trichrome-stained histological sections.
FAQs
During heart development, coordinated signals regulate three linked cardiomyocyte behaviors: proliferation, differentiation, and maturation. Proliferation expands the cell population, differentiation establishes cardiac cell identity, and maturation helps developing cells become functionally specialized. Studying their timing and interaction helps explain how functional cardiac tissue is assembled and why altered regulation can affect myocardial formation.
The reduction of regenerative activity after birth suggests that developmental programs supporting cardiomyocyte renewal are not maintained at the same level throughout life. Comparing developing and postnatal myocardium allows researchers to identify which cellular behaviors or tissue signals change over time. That comparison is important for understanding why injured heart muscle has limited renewal capacity.
Cardiac progenitor populations provide a specific cellular focus for investigating how cardiac tissue may arise during development or participate in repair. Researchers examine these populations alongside cardiomyocyte proliferation, differentiation, and maturation and the signals present in cardiac tissue. This integrated view connects potential cellular sources with the processes that establish or restore myocardial structure and function.
Researchers examine cellular behaviors, cardiac progenitor populations, and tissue signaling, then relate those observations to heart formation, growth, or responses to injury. Organizing an investigation around these components helps distinguish whether a finding concerns cell number, cell state, maturation, or surrounding signals that influence cardiac tissue. Together, these observations provide a broader picture of renewal.
In developmental biology, renewal research connects cardiomyocyte behavior with the construction of functional cardiac tissue. Findings about proliferation, differentiation, maturation, progenitor populations, and tissue signaling can clarify processes involved in congenital heart development. The same framework links developmental changes to later questions about myocardial repair, because both concern how cardiac tissue is formed or restored.
This research asks whether cellular behaviors and signaling processes associated with developmental cardiac growth can inform myocardial repair after injury. Its longer-term relevance lies in regenerative therapies designed to restore contractile function, rather than simply describing tissue damage. By studying why renewal declines and how it might be enhanced, researchers can investigate approaches for restoring injured heart muscle.