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Hsp90: the vulnerable chaperone

Gabriela Chiosis1, Maria Vilenchik, Joungnam Kim

  • 1Department of Medicine, Memorial Sloan-Kettering Cancer Center, New York, NY 10021, USA. chiosisg@mskcc.org <chiosisg@mskcc.org>

Drug Discovery Today
|October 12, 2004
PubMed

Insights

Heat shock protein 90 (Hsp90) is a cancer target. New inhibitors target Hsp90's C-terminus or post-translational modifications, offering novel therapeutic strategies.

Area of Science:

  • Oncology
  • Molecular Biology
  • Biochemistry

Background:

  • Heat shock protein 90 (Hsp90) is a crucial molecular chaperone involved in cancer progression.
  • Hsp90 regulates key proteins in apoptotic, survival, and growth pathways, making it a significant cancer target.
  • Current Hsp90 inhibitors primarily target the N-terminal ATP pocket.

Purpose of the Study:

  • To review emerging classes of Hsp90 inhibitors.
  • To discuss novel modes of action for interfering with Hsp90 chaperone activity.
  • To highlight alternative strategies beyond N-terminal ATP pocket inhibition.

Main Methods:

  • Literature review of emerging Hsp90 inhibitor classes.
  • Analysis of Hsp90 inhibitor mechanisms of action.
  • Discussion of agents targeting Hsp90's C-terminus and post-translational modifications.

Main Results:

  • Several emerging classes of Hsp90 inhibitors have been identified.
  • Inhibitors targeting the C-terminus and post-translational modifications represent viable alternative strategies.
  • These novel approaches offer new ways to disrupt Hsp90 chaperone activity.

Conclusions:

  • Targeting Hsp90 remains a promising strategy in cancer therapy.
  • Exploring alternative binding sites and modification strategies expands the therapeutic potential of Hsp90 inhibitors.
  • Emerging Hsp90 inhibitors offer novel avenues for cancer treatment.

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