Mitochondrial Proteases as Emerging Pharmacological Targets

Area of Science:

• Mitochondrial biology
• Molecular medicine
• Enzymology

Background:

• Mitochondrial dysfunction and protein aggregation impair cell viability under stress.
• Mechanisms like the mitochondrial unfolded protein response (UPRmt), fusion/fission, and mitophagy maintain mitochondrial proteostasis.
• Mitochondrial proteases are key regulators of these stress responses.

Purpose of the Study:

• To review the functions of six specific mitochondrial proteases.
• To explore their roles in human disease pathogenesis.
• To summarize current knowledge on inhibitors targeting these proteases.

Main Methods:

• Literature review of mitochondrial proteases.
• Analysis of their involvement in cellular stress responses.
• Examination of disease associations and therapeutic strategies.

Main Results:

• Mitochondrial proteases are essential for UPRmt and overall mitochondrial health.
• Dysfunctional proteases are implicated in inherited diseases, neurodegeneration, and cancer.
• Specific proteases like CLPP, HTRA2, and LONP1 have defined roles in these pathologies.

Conclusions:

• Mitochondrial proteases are critical therapeutic targets.
• Understanding their function is vital for developing treatments for various human diseases.
• Inhibitors of these proteases hold promise for future therapeutic interventions.