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Published on: July 10, 2019
Blocking Extracellular Chaperones to Improve Cardiac Regeneration
Laura Seclì1, Matteo Sorge1, Alessandro Morotti2
1Department of Molecular Biotechnology and Health Sciences, University of Turin, Turin, Italy.
Insights
Blocking extracellular chaperone proteins can improve heart function after damage. This approach, combined with tissue engineering, offers a promising future for cardiac regenerative medicine.
Area of Science:
- Cardiovascular Biology
- Molecular Cardiology
- Regenerative Medicine
Background:
- Myocardial insults cause cardiomyopathy and heart failure due to limited cardiomyocyte regeneration.
- Chaperone proteins are vital for cardiomyocyte health, regulating protein folding and turnover.
- Extracellular chaperone proteins released during cell damage can promote inflammation and apoptosis, harming heart function.
Purpose of the Study:
- To investigate the detrimental role of extracellular chaperone proteins in myocardial damage.
- To evaluate the therapeutic potential of blocking extracellular chaperone activity in cardiac conditions.
- To explore the combination of chaperone inhibition and tissue engineering for cardiac repair.
Main Methods:
- Preclinical models of myocardial infarction and cardiomyopathy were utilized.
- The effects of blocking extracellular chaperone activity on heart function were assessed.
- Investigated the potential synergy between chaperone inhibition and tissue engineering strategies.
Main Results:
- Blocking extracellular chaperone activity demonstrated beneficial effects on heart function in preclinical models.
- Evidence suggests extracellular chaperones contribute to inflammation and cardiomyocyte apoptosis post-insult.
- The study highlights the dual role of chaperone proteins in cardiac health and disease.
Conclusions:
- Inhibition of extracellular chaperone proteins represents a potential therapeutic strategy for heart failure.
- Combining chaperone blockade with tissue engineering may advance cardiac regenerative medicine.
- Understanding extracellular chaperone function is crucial for developing novel cardiac therapies.
Abstract:
Chronic or acute insults to the myocardium are responsible for the onset of cardiomyopathy and heart failure. Due to the poor regenerative ability of the human adult heart, the survival of cardiomyocytes is a prerequisite to support heart function. Chaperone proteins, by regulating sarcomeric protein folding, function, and turnover in the challenging environment of the beating heart, play a fundamental role in myocardial physiology. Nevertheless, a number of evidences indicate that, under stress conditions or during cell damage, myocardial cells release chaperone proteins that, from the extracellular milieu, play a detrimental function, by perpetuating inflammation and inducing cardiomyocyte apoptosis. Blocking the activity of extracellular chaperones has been proven to have beneficial effects on heart function in preclinical models of myocardial infarction and cardiomyopathy. The application of this approach in combination with tissue engineering strategies may represent a future innovation in cardiac regenerative medicine.
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