Anti-aging effect of Hedgehog signaling

Area of Science:

• Gerontology
• Developmental Biology
• Regenerative Medicine

Background:

• Aging involves progressive loss of physiological integrity and increased disease vulnerability.
• The Hedgehog (Hh) signaling pathway is crucial for development and cancer, with emerging roles in adult tissue maintenance and regeneration.
• These Hh pathway functions are closely linked to the aging process.

Purpose of the Study:

• To synthesize recent findings on the role of Hedgehog (Hh) signaling in aging.
• To explore the potential of Hh pathway modulation as an anti-aging intervention.
• To highlight therapeutic strategies and challenges for targeting Hh signaling in aging.

Main Methods:

• Review of preclinical models and scientific literature.
• Analysis of Hh signaling's impact on hallmark features of aging across diverse tissues.
• Evaluation of therapeutic approaches for Hh pathway modulation.

Main Results:

• Controlled Hh signaling activation counteracts aging features like stem cell exhaustion, mitochondrial dysfunction, and inflammation.
• Hh pathway modulation enhances tissue regeneration and progenitor cell function in preclinical models.
• Therapeutic strategies show efficacy in mitigating age-related decline, but face challenges.

Conclusions:

• Hedgehog (Hh) signaling is a promising target for interventions aimed at preserving organ function and extending healthspan.
• Further research is needed to address challenges like tissue specificity, safety, and tumorigenic risk.
• Integrating insights from multiple fields positions Hh signaling as a key player in geroscience.