Intracellular devastation in heart failure
Federica Del Monte1, Roger J Hajjar
1Cardiovascular Research, Beth Israel Deaconess Medical Center, 330 Brookline Ave., Boston, MA 02215, USA. fdelmont@bidmc.harvard.edu
Insights
End-stage heart failure involves cellular changes like impaired calcium cycling and protein misfolding. Targeting these abnormalities offers potential therapeutic strategies for cardiac dysfunction.
Area of Science:
- Cardiology
- Cellular Biology
- Biochemistry
Background:
- End-stage heart failure presents complex cellular abnormalities.
- These include altered excitation-contraction coupling and signaling pathways.
- While some changes are adaptive, many are detrimental to cardiac cells.
Purpose of the Study:
- To review cellular calcium cycling changes in myopathic hearts.
- To explore therapeutic targeting of these calcium cycling abnormalities.
- To focus on the role of protein misfolding in cardiac dysfunction.
Main Methods:
- Literature review of cellular mechanisms in heart failure.
- Analysis of calcium cycling alterations in cardiac cells.
- Examination of protein misfolding in myocardial disease.
Main Results:
- Significant alterations in calcium cycling are observed in heart failure.
- Protein misfolding contributes to cardiac dysfunction.
- These cellular changes impact overall cardiac performance.
Conclusions:
- Targeting aberrant calcium cycling presents a promising therapeutic avenue.
- Addressing protein misfolding is crucial for managing cardiac dysfunction.
- Understanding cellular changes is key to developing effective heart failure treatments.
Abstract:
End-stage heart failure is characterized by a number of abnormalities at the cellular level, which include changes in excitation-contraction coupling, alterations in contractile proteins and activation/deactivation of signaling pathways. Even though many of these changes are adaptive to the high workload and stress in heart failure, a significant number of these alterations are deeply deleterious to the cardiac cell. In this article, we will review the changes in calcium cycling that occur in myopathic hearts and how they can be effectively targeted. We will also focus on protein misfolding in the setting of cardiac dysfunction.
Related Concept Videos
Pathophysiology of Heart Failure
Heart Failure II: Pathophysiology
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