The Hippo Pathway Orchestrates Mitochondrial Quality Control: A Novel Focus on Cardiovascular Diseases

Area of Science:

• Cardiovascular Biology
• Mitochondrial Medicine
• Cell Signaling

Background:

• Mitochondria are central to cellular metabolism and cardiomyocyte survival, with dysfunction implicated in cardiovascular diseases (CVDs).
• Mitochondrial quality control (MQC) is crucial for maintaining cardiac health and homeostasis.
• The Hippo pathway is a key regulator of cell fate, organ size, and mitochondrial function, particularly in the heart.

Purpose of the Study:

• To review the intricate relationship between the Hippo pathway and MQC in the context of cardiovascular health and disease.
• To elucidate the mechanisms by which the Hippo pathway influences mitochondrial dynamics, mitophagy, biogenesis, apoptosis, and metabolism.
• To explore the therapeutic potential of targeting the Hippo pathway for managing CVDs.

Main Methods:

• Literature review focusing on the molecular interplay between the Hippo pathway and mitochondrial regulation.
• Analysis of studies investigating Hippo pathway components and their effects on mitochondrial morphology and function.
• Synthesis of evidence linking Hippo pathway-mediated MQC to various cardiovascular pathologies.

Main Results:

• The Hippo pathway directly and indirectly modulates mitochondrial proteins, affecting mitochondrial morphology and function.
• Specific aspects of MQC, including mitochondrial dynamics, mitophagy, and metabolism, are regulated by the Hippo pathway.
• Dysregulation of Hippo pathway-controlled MQC contributes to the pathophysiology of CVDs like ischemia-reperfusion injury, septic cardiomyopathy, and diabetic cardiomyopathy.

Conclusions:

• The Hippo pathway is a critical regulator of MQC, essential for maintaining cardiac homeostasis.
• Understanding the Hippo pathway's role in MQC provides insights into the mechanisms underlying CVDs.
• Targeting the Hippo pathway presents a promising novel therapeutic avenue for treating cardiovascular diseases.