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Updated: Sep 19, 2025

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Proteostasis signatures in human diseases.

Christine M Lim1, Michele Vendruscolo1

  • 1Centre for Misfolding Diseases, Yusuf Hamied Department of Chemistry, University of Cambridge, Cambridge, United Kingdom.

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Summary

This study defines proteostasis signatures, revealing distinct patterns of protein homeostasis network changes across 32 diseases. These signatures help differentiate diseases and track progression, offering new insights into disease mechanisms.

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Area of Science:

  • Molecular Biology
  • Systems Biology
  • Disease Pathogenesis

Background:

  • The protein homeostasis (proteostasis) network is crucial for maintaining cellular function.
  • While the proteostasis network is mapped, its role in disease is not fully understood.
  • Understanding proteostasis disruptions in disease is key to characterizing disease mechanisms.

Purpose of the Study:

  • To define proteostasis signatures for characteristic patterns of change in the proteostasis network associated with disease.
  • To perform a large-scale, pan-disease analysis across diverse human diseases.
  • To investigate the temporal evolution and disease-specific nature of proteostasis disruptions.

Main Methods:

  • Conducted a pan-disease analysis across 32 human diseases spanning 7 disease types.
  • Identified unique proteostasis perturbations specific to disease states.
  • Analyzed the temporal dynamics of proteostasis signatures during disease progression.

Main Results:

  • Defined unique proteostasis signatures across various diseases.
  • Uncovered distinctive signatures that differentiate disease types, highlighting various proteostasis mechanisms.
  • Observed shifts in proteostasis disruption correlating with disease progression.
  • Demonstrated that smoking impairs proteostasis similarly to disease, potentially predisposing individuals to illness.

Conclusions:

  • Proteostasis signatures offer a novel perspective for studying human diseases.
  • Characterizing proteostasis disruptions can elucidate disease mechanisms and progression.
  • Understanding the impact of environmental factors like smoking on proteostasis is crucial for disease prevention.