Approaches for defining the Hsp90-dependent proteome

Area of Science:

• Biochemistry
• Molecular Biology
• Proteomics

Background:

• Heat Shock Protein 90 (Hsp90) is a crucial molecular chaperone involved in cellular proteostasis.
• Hsp90 is a validated drug target for cancer, neurodegenerative diseases, and protein-folding disorders.
• Understanding Hsp90's protein interactions is key to elucidating its cellular functions and therapeutic potential.

Purpose of the Study:

• To comprehensively review and synthesize findings from Hsp90-focused proteomics studies.
• To evaluate the strengths and limitations of various proteomics methodologies used to identify Hsp90 interactors.
• To provide a consolidated resource of Hsp90-interacting proteins and associated bioinformatic data.

Main Methods:

• Systematic literature review of proteomics studies investigating Hsp90 interactions.
• Compilation and cross-referencing of identified Hsp90-interacting proteins from over 23 studies.
• Bioinformatic analysis including pathway enrichment and annotation of the Hsp90 interactome.

Main Results:

• A comprehensive catalog of Hsp90-interacting proteins identified across numerous studies.
• Summary of the diverse cellular functions and pathways associated with Hsp90.
• Identification of gaps in current knowledge regarding Hsp90-mediated proteostasis.

Conclusions:

• Proteomics studies have significantly advanced our understanding of Hsp90's role in cellular health and disease.
• The compiled resources facilitate further investigation into Hsp90's functional network.
• Further research is needed to fully elucidate Hsp90's contribution to proteostasis and disease pathogenesis.