A Pan-ALDH1A Inhibitor Induces Necroptosis in Ovarian Cancer Stem-like Cells

Ilana Chefetz, Edward Grimley, Kun Yang, Linda Hong, Ekaterina V Vinogradova, Radu Suciu, Ilya Kovalenko, David Karnak, Cynthia A Morgan, Mikhail Chtcherbinine, Cameron Buchman, Brandt Huddle, Scott Barraza, Meredith Morgan, Kara A Bernstein, Euisik Yoon, David B Lombard, Andrea Bild, Geeta Mehta, Iris RomeroChun-Yi Chiang, Charles Landen, Benjamin Cravatt, Thomas D Hurley, Scott D Larsen, Ronald J Buckanovich

Research output: Contribution to journalArticlepeer-review

15 Scopus citations

Abstract

Ovarian cancer is typified by the development of chemotherapy resistance. Chemotherapy resistance is associated with high aldehyde dehydrogenase (ALDH) enzymatic activity, increased cancer "stemness," and expression of the stem cell marker CD133. As such, ALDH activity has been proposed as a therapeutic target. Although it remains controversial which of the 19 ALDH family members drive chemotherapy resistance, ALDH1A family members have been primarily linked with chemotherapy resistant and stemness. We identified two ALDH1A family selective inhibitors (ALDH1Ai). ALDH1Ai preferentially kills CD133+ ovarian cancer stem-like cells (CSCs). ALDH1Ai induce necroptotic CSC death, mediated, in part, by the induction of mitochondrial uncoupling proteins and reduction in oxidative phosphorylation. ALDH1Ai is highly synergistic with chemotherapy, reducing tumor initiation capacity and increasing tumor eradication in vivo. These studies link ALDH1A with necroptosis and confirm the family as a critical therapeutic target to overcome chemotherapy resistance and improve patient outcomes.

Original languageEnglish (US)
Pages (from-to)3061-3075.e6
JournalCell reports
Volume26
Issue number11
DOIs
StatePublished - Mar 12 2019

Bibliographical note

Copyright © 2019 The Author(s). Published by Elsevier Inc. All rights reserved.

PubMed: MeSH publication types

  • Journal Article
  • Research Support, U.S. Gov't, Non-P.H.S.
  • Research Support, N.I.H., Extramural
  • Research Support, Non-U.S. Gov't

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