Senotherapeutic strategies for ovarian aging: Mechanistic insights and translational perspectives

Alaa M Alsirhani1, Mohammad El-Nablaway2, Tarek A Yousef3

  • 1Department of Chemistry, College of Science, Jouf University, Sakaka, Aljouf 72341, Saudi Arabia.

Insights

Cellular senescence drives ovarian aging and menopause. Senolytic and senomorphic drugs show promise in preclinical studies for preserving ovarian reserve and reproductive lifespan.

Area of Science:

  • Geroscience
  • Reproductive Biology
  • Cellular Biology

Background:

  • Ovarian aging involves follicle depletion and oocyte quality decline, leading to menopause and comorbidities.
  • Cellular senescence, characterized by cell-cycle arrest and a pro-inflammatory senescence-associated secretory phenotype (SASP), is a key driver of ovarian aging.
  • Current senotherapeutic interventions for ovarian aging are primarily in preclinical stages with uncertain human applicability.

Purpose of the Study:

  • To synthesize the molecular hallmarks of ovarian senescence into a framework for therapeutic intervention.
  • To critically evaluate the preclinical efficacy of senolytics and senomorphics in combating ovarian aging.
  • To outline a roadmap for clinical translation of senotherapeutics for ovarian aging.

Main Methods:

  • Review and synthesis of molecular hallmarks of ovarian senescence, including genomic instability, mitochondrial dysfunction, and inflammasome activation.
  • Critical evaluation of preclinical data on senolytics (e.g., dasatinib + quercetin) and senomorphics (e.g., rapamycin, metformin).
  • Assessment of multimodal biomarkers (e.g., AMH, AFC, SASP analytes) and ovary-directed delivery systems for clinical translation.

Main Results:

  • Senolytics and senomorphics demonstrate preclinical potential in preserving ovarian reserve and mitigating SASP-driven inflammation and fibrosis.
  • Specific senotherapeutics like dasatinib + quercetin, fisetin, rapamycin, and metformin show promise in preclinical models.
  • Multimodal biomarkers and targeted delivery systems are crucial for advancing senotherapeutics to clinical application.

Conclusions:

  • Cellular senescence is a central mechanism in ovarian aging, offering therapeutic targets.
  • Senolytics and senomorphics represent a promising strategy to combat ovarian aging, preserve reproductive lifespan, and improve women's health.
  • Bridging geroscience and senotherapeutics, with a focus on biomarkers and delivery, is key for clinical translation.