Molecular Mechanisms Underlying Heart Failure and Their Therapeutic Potential

Area of Science:

• Cardiovascular Medicine
• Molecular Biology
• Pathophysiology

Background:

• Heart failure (HF) affects 3.4% of adults, necessitating better therapeutic strategies.
• Pathological cardiac remodeling, characterized by hypertrophy and fibrosis, significantly contributes to HF progression.
• Current treatment options for HF remain limited despite advancements.

Purpose of the Study:

• To review the key molecular mechanisms underlying cardiac remodeling and HF development.
• To explore potential therapeutic targets and compounds for preventing or treating HF.
• To provide insights into novel strategies for HF management.

Main Methods:

• Comprehensive review of existing literature on HF pathogenesis.
• Categorization of underlying mechanisms including mitochondrial dysfunction, lipotoxicity, ER stress, autophagy, inflammation, cell death, endothelial dysfunction, and contractility defects.
• Analysis of preclinical data on targeted pathways and compounds.

Main Results:

• Identified eight key categories of molecular mechanisms driving HF: mitochondrial dysfunction, cardiac lipotoxicity, ER stress, impaired autophagy, inflammation, programmed cell death (apoptosis, pyroptosis, ferroptosis), endothelial dysfunction, and defective contractility.
• Preclinical evidence supports targeting these pathways for HF treatment.
• Further clinical investigation is required to validate therapeutic outcomes.

Conclusions:

• Molecular mechanisms of HF are multifactorial, involving complex cellular and molecular pathways.
• Targeting identified pathways shows promise for novel HF therapies.
• Translating preclinical findings into clinical practice is crucial for advancing HF treatment.