Cited by 530Ferroptosis and cancer prognosisCell death mechanisms and regulationPancreatic and Hepatic Oncology Research

Identification of artesunate as a specific activator of ferroptosis in pancreatic cancer cells

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Eling, Nils, Reuter, Lukas, Hazin, John, Hamacher-Brady, Anne, Brady, Nathan R.·2015·Oncoscience

Abstract

Oncogenic KRas reprograms pancreatic ductal adenocarcinoma (PDAC) cells to states which are highly resistant to apoptosis. Thus, a major preclinical goal is to identify effective strategies for killing PDAC cells. Artesunate (ART) is an anti-malarial that specifically induces programmed cell death in different cancer cell types, in a manner initiated by reactive oxygen species (ROS)-generation. In this study we demonstrate that ART specifically induced ROS- and lysosomal iron-dependent cell death in PDAC cell lines. Highest cytotoxicity was obtained in PDAC cell lines with constitutively-active KRas, and ART did not affect non-neoplastic human pancreatic ductal epithelial (HPDE) cells. We determined that ART did not induce apoptosis or necroptosis. Instead, ART induced ferroptosis, a recently described mode of ROS- and iron-dependent programmed necrosis which can be activated in Ras-transformed cells. Co-treatment with the ferroptosis inhibitor ferrostatin-1 blocked ART-induced lipid peroxidation and cell death, and increased long-term cell survival and proliferation. Importantly, analysis of PDAC patient mRNA expression indicates a dependency on antioxidant homeostasis and increased sensitivity to free intracellular iron, both of which correlate with Ras-driven sensitivity to ferroptosis. Overall, our findings suggest that ART activation of ferroptosis is an effective, novel pathway for killing PDAC cells.

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  • Artemisinin derivatives induce iron-dependent cell death, specifically ferroptosis.

    “Of note, artemisinin derivatives have been reported to induce iron-dependent cell death, and specifically ferroptosis”

    From Ferroptosis: Death by Lipid Peroxidation (2016) · cites this paper as [85]

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Authors
Eling, N., Reuter, L., Hazin, J., Hamacher-Brady, A., & Brady, N. R.
Affiliations
  • German Cancer Research Center (DE)
  • Lysosomal Systems Biology, German Cancer Research Center (DKFZ), Heidelberg, Germany
Venue
Oncoscience
Published
2015-05-02
Volume
2
Issue
5
Pages
517-532
ISSN
2331-4737 (ISSN-L)
OpenAlex
W2418439210
Cited by
524
References
59
Citations by year
2026: 22 · 2025: 41 · 2024: 57 · 2023: 71 · 2022: 92 · 2021: 91 · 2020: 60 · 2019: 26 · 2018: 21 · 2017: 23 · 2016: 15 · 2015: 2 · 2014: 1
FWCI
16.10
Type
journal article
Language
en
Open access
Licence
cc-by
Locations
  • Oncoscience (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
Funders
  • Deutsches Krebsforschungszentrum
  • Bundesministerium für Bildung und Forschung
  • University of Toronto
  • Tianjin Medical University
Topics
  • Health Sciences › Medicine › Pulmonary and Respiratory Medicine › Ferroptosis and cancer prognosis
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Cell death mechanisms and regulation
  • Health Sciences › Medicine › Oncology › Pancreatic and Hepatic Oncology Research
Keywords
artesunate, ferroptosis, pancreatic ductal adenocarcinoma, reactive oxygen species, lysosomal iron, lipid peroxidation, ferrostatin-1, antioxidant homeostasis, necroptosis, apoptosis resistance, anticancer drug repurposing

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