Adaptive inter-tissue proteostasis networks in aging and neurodegeneration

Area of Science:

• Cellular Biology
• Neuroscience
• Aging Research

Background:

• Proteostasis maintenance is vital for cellular and organismal health.
• Decline in proteostasis with age contributes to neurodegenerative and metabolic diseases.
• Cells employ specific stress responses like HSR, UPRER, and UPRmt.

Purpose of the Study:

• Review classical and emerging concepts of proteostasis stress-response pathways.
• Discuss the integration of these pathways with neural signaling.
• Explore how modulation of these pathways impacts aging and disease.

Main Methods:

• Literature review of cell-autonomous and cell-non-autonomous proteostasis mechanisms.
• Analysis of neuronal and glial cell signaling in stress response coordination.
• Synthesis of current data on proteostasis, aging, and neurodegeneration.

Main Results:

• Cell-non-autonomous mechanisms coordinate proteostasis across tissues via neuronal signals.
• Neuronal signals modulate lipid metabolism and longevity.
• Glial cells play a role in systemic proteostasis, with mechanisms under investigation.

Conclusions:

• Intercellular communication is key to governing proteostasis.
• Understanding these communication networks can reveal therapeutic strategies for age-related disorders.
• Targeting intercellular proteostasis regulation may offer novel treatments for neurodegenerative diseases.