Heat Shock Protein 90 Inhibitors: An Update on Achievements, Challenges, and Future Directions

J Med Chem. 2020 Mar 12;63(5):1798-1822. doi: 10.1021/acs.jmedchem.9b00940. Epub 2019 Nov 12.

Abstract

Hsp90 is one of the most important chaperones involved in regulating the maturation of more than 300 client proteins, many of which are closely associated with refractory diseases, including cancer, neurodegenerative diseases, and viral infections. Clinical Hsp90 inhibitors bind to the ATP pocket in the N-terminal domain of Hsp90 and subsequently suppress the ATPase activity of Hsp90. Recently, with the increased understanding of the discrepancies in the isoforms of Hsp90 and the modes of Hsp90-co-chaperone-client complex interactions, some new strategies for Hsp90 inhibition have emerged. Novel Hsp90 inhibitors that offer selective suppression of Hsp90 isoforms or specific disruption of Hsp90-co-chaperone protein-protein interactions are expected to show with satisfactory efficacy and safety profiles. This review summarizes the recent progress in Hsp90 inhibitors. Additionally, Hsp90 inhibitory strategies are emphasized in this review.

Publication types

  • Research Support, Non-U.S. Gov't
  • Review

MeSH terms

  • Animals
  • Antineoplastic Agents / chemistry
  • Antineoplastic Agents / pharmacology
  • Antineoplastic Agents / therapeutic use
  • Autoimmune Diseases / drug therapy
  • Autoimmune Diseases / metabolism
  • Benzoquinones / chemistry
  • Benzoquinones / pharmacology
  • Benzoquinones / therapeutic use
  • Forecasting
  • HSP90 Heat-Shock Proteins / antagonists & inhibitors*
  • HSP90 Heat-Shock Proteins / chemistry
  • HSP90 Heat-Shock Proteins / metabolism*
  • Humans
  • Immunosuppressive Agents / chemistry
  • Immunosuppressive Agents / pharmacology
  • Immunosuppressive Agents / therapeutic use
  • Lactams, Macrocyclic / chemistry
  • Lactams, Macrocyclic / pharmacology
  • Lactams, Macrocyclic / therapeutic use
  • Molecular Chaperones / pharmacology
  • Molecular Chaperones / therapeutic use
  • Neoplasms / drug therapy
  • Neoplasms / metabolism
  • Protein Binding / physiology
  • Protein Structure, Secondary
  • Protein Structure, Tertiary

Substances

  • Antineoplastic Agents
  • Benzoquinones
  • HSP90 Heat-Shock Proteins
  • Immunosuppressive Agents
  • Lactams, Macrocyclic
  • Molecular Chaperones
  • 17-(dimethylaminoethylamino)-17-demethoxygeldanamycin
  • geldanamycin