Mechanical signals in aging: mechanisms and therapeutic strategies

Area of Science:

• Gerontology and Cellular Biology
• Biophysics and Mechanobiology

Background:

• Cellular senescence is a key factor in aging and age-related diseases.
• Emerging evidence highlights the critical role of cellular mechanics in regulating senescence.
• Mechanical signals influence cytoskeletal organization, nuclear mechanics, and chromatin structure.

Purpose of the Study:

• To review the multi-scale mechanical alterations associated with cellular senescence.
• To discuss mechanosensitive pathways involved in senescence.
• To explore mechanical approaches for senescence identification and therapeutic interventions.

Main Methods:

• Review of existing literature on cellular mechanics and senescence.
• Analysis of how mechanical signals regulate senescence initiation and progression.
• Examination of emerging mechanical strategies for therapeutic applications.

Main Results:

• Senescence involves significant changes in cellular mechanics, including altered traction forces and cytoskeletal disorganization.
• Impaired nuclear mechanotransduction is a hallmark of senescent cells.
• Key mechanosensitive pathways are identified as regulators of senescence.

Conclusions:

• Cellular mechanics are integral to understanding and targeting senescence.
• Mechanical interventions show promise for identifying senescent cells and developing therapies for aging and regenerative medicine.
• Future research should focus on mechanics-based approaches for healthspan extension.