Isoform-Selective and Stereoselective Inhibition of Hypoxia Inducible Factor-2

Thomas H. Scheuermann, Daniel Stroud, Christopher E. Sleet, Liela Bayeh, Cameron Shokri, Hanzhi Wang, Charles G. Caldwell, Jamie Longgood, John B. MacMillan, Richard K. Bruick, Kevin H. Gardner, Uttam K. Tambar

Research output: Contribution to journalArticle

32 Scopus citations

Abstract

Hypoxia inducible factor (HIF) transcription factors reside at the center of signaling pathways used by mammalian cells to sense and respond to low oxygen levels. While essential to maintain oxygen homeostasis, misregulation of HIF protein activity correlates with tumor development and metastasis. To provide artificial routes to target misregulated HIF activity, we identified small molecule antagonists of the HIF-2 transcription factor that bind an internal cavity within the C-terminal PAS domain of the HIF-2α subunit. Here we describe a new class of chiral small molecule ligands that provide the highest affinity binding, the most effective, isoform-selective inhibition of HIF-2 in cells, and trigger the largest protein conformation changes reported to date. The current results further illuminate the molecular mechanism of HIF-2 antagonism and suggest additional routes to develop higher affinity and potency HIF-2 antagonists.

Original languageEnglish (US)
Pages (from-to)5930-5941
Number of pages12
JournalJournal of Medicinal Chemistry
Volume58
Issue number15
DOIs
StatePublished - Jul 30 2015

ASJC Scopus subject areas

  • Molecular Medicine
  • Drug Discovery

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