The Unfolded Protein Response: Where Metabolism Meets Aging

Edisnap· Feb 25, 2026

This infographic illustrates the Unfolded Protein Response (UPR) in healthy versus aging states, showing how chronic UPR activation in aging leads to inflammation, senescence, and metabolic dysfunction, contributing to cellular decline.

Cells have a built-in quality control system for proteins — and it connects directly to metabolism.

The Unfolded Protein Response (UPR) normally restores homeostasis when proteins misfold. But chronic UPR activation triggers inflammation, senescence, and even cell death. With age, the UPR becomes dysregulated, creating a self-reinforcing cycle of stress and damage.

What if aging is partly a failure of protein quality control that creates metabolic dysfunction?