Mitochondria-targeted senotherapeutic interventions

Area of Science:

• Gerontology
• Cellular Biology
• Mitochondrial Medicine

Background:

• Aging is characterized by age-related disorders, with mitochondrial dysfunction playing a key role.
• Cellular senescence and its associated secretory phenotype (SASP) are linked to age-related diseases and immune weakening.
• The precise mechanisms linking mitochondrial dysfunction to SASP in aging remain under investigation.

Purpose of the Study:

• To explore senotherapeutic strategies targeting mitochondrial dysfunction for age-related disorders.
• To investigate the role of mitochondria in cellular senescence and SASP.
• To evaluate mitochondria-directed approaches for combating age-related diseases.

Main Methods:

• Review of senotherapeutic strategies, including senolytics and senomorphics/senostatics.
• Analysis of the link between mitochondrial dysfunction, cellular senescence, and SASP.
• Exploration of mitochondria-targeted senolytic and redox modulator senomorphic approaches.

Main Results:

• Mitochondrial dysfunction is central to age-related disorders and cellular senescence.
• Senotherapeutics, targeting senescent cells, can be classified as senolytics or senomorphics.
• Mitochondria are crucial for senescent cell survival, making them targets for gerotherapeutics.

Conclusions:

• Mitochondria-directed gerotherapeutic approaches, including senolytics and senomorphics, show promise for treating age-related disorders.
• Targeting mitochondria in senescent cells offers a dual strategy: killing senescent cells or mitigating their SASP.
• These strategies aim to extend healthspan and potentially lifespan by combating detrimental consequences of cellular senescence.