Inhibition of angiogenesis by the antifungal drug itraconazole

Curtis R. Chong, Jing Xu, Jun Lu, Shridhar Bhat, David J. Sullivan, Jun O. Liu

Research output: Contribution to journalArticle

Abstract

Angiogenesis, the formation of new blood vessels, is implicated in a number of important human diseases, including cancer, diabetic retinopathy, and rheumatoid arthritis. To identify clinically useful angiogenesis inhibitors, we assembled and screened a library of mostly Food and Drug Administration-approved drugs for inhibitors of human endothelial cell proliferation. One of the most promising and unexpected hits was itraconazole, a known antifungal drug. Itraconazole inhibits endothelial cell cycle progression at the G1 phase in vitro and blocks vascular endothelial growth factor/basic fibroblast growth factor-dependent angiogenesis in vivo. In attempts to delineate the mechanism of action of itraconazole, we found that human lanosterol 14α-demethylase (14DM) is essential for endothelial cell proliferation and may partially mediate the inhibition of endothelial cells by itraconazole. Together, these findings suggest that itraconazole has the potential to serve as an antiangiogenic drug and that lanosterol 14DM is a promising new target for discovering new angiogenesis inhibitors.

Original languageEnglish (US)
Pages (from-to)263-270
Number of pages8
JournalACS chemical biology
Volume2
Issue number4
DOIs
StatePublished - Apr 1 2007

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ASJC Scopus subject areas

  • Biochemistry
  • Molecular Medicine

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