Mitochondrial quality control as a central pharmacological target in aging

Area of Science:

• Gerontology
• Mitochondrial Biology
• Pharmacology

Background:

• Mitochondrial dysfunction is a key factor in aging.
• Developing effective gerotherapies targeting mitochondria is challenging due to complex pathways and varied endpoints.
• A unifying framework is needed to advance mitochondrial interventions.

Purpose of the Study:

• To synthesize recent evidence on mitochondrial quality control (MQC) for gerotherapeutic development.
• To map druggable targets within the MQC framework and categorize current therapeutic efforts.
• To propose a translational strategy with improved endpoints for clinical studies.

Main Methods:

• A comprehensive review of original evidence on MQC modules: removal, repair, remodeling, and renewal.
• Mapping of druggable nodes and organization of pharmacological interventions into five classes.
• Analysis of human studies and therapeutic programs to identify practical lessons for translation.
• Outline of a translational strategy prioritizing flux-aware readouts and triangulation of mechanism with function.

Main Results:

• The MQC framework integrates four interdependent modules: removal, repair, remodeling, and renewal.
• Five classes of pharmacological interventions targeting MQC are identified.
• Practical lessons from human studies emphasize dosing, vulnerability, and endpoint harmonization.
• A translational strategy using in vivo bioenergetics, blood-based assays, and stress signals is proposed.

Conclusions:

• The MQC framework provides a unified approach to developing mitochondria-targeted gerotherapies.
• Key bottlenecks in translation include tissue exposure, long-term safety, and endpoint consistency.
• Future directions involve biomarker-guided precision geroscience, combination strategies, and advanced chemical biology.