Cellular Senescence and Inflammaging in the Bone: Pathways, Genetics, Anti-Aging Strategies and Interventions

Area of Science:

• Gerontology
• Cellular Biology
• Orthopedics

Background:

• Advancing age is linked to age-related diseases (ARDs), particularly musculoskeletal conditions affecting millions globally.
• Cellular senescence and its associated secretory phenotype (SASP) are key drivers of bone aging.
• SASP contributes to chronic inflammation (inflammaging), a hallmark of aging.

Purpose of the Study:

• To explore the molecular mechanisms of bone aging, cellular senescence, and inflammaging.
• To identify pathways common to senescence, inflammaging, cancer, and other ARDs like osteoarthritis.
• To investigate potential interventions for bone regeneration and senescence reduction.

Main Methods:

• Review of current literature on bone aging, senescence, and inflammaging.
• Identification of shared genes, pathways, and molecular mechanisms.
• Exploration of sequencing techniques for factor identification.

Main Results:

• Cellular senescence and SASP accumulation drive bone aging and inflammaging.
• Shared pathways exist between senescence, inflammaging, cancer, and ARDs.
• Interventions like pharmacological, non-pharmacological, and lifestyle changes show promise.

Conclusions:

• Understanding bone senescence and inflammaging is crucial for healthy aging and ARD detection.
• Targeting senescence and inflammation may serve as anti-aging strategies for bone.
• Further research into these pathways is essential for developing effective interventions.