Proteostasis signatures in human diseases

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.