Cited by 51Ferroptosis and cancer prognosisHead and Neck Cancer StudiesCancer Cells and Metastasis

Itraconazole attenuates the stemness of nasopharyngeal carcinoma cells via triggering ferroptosis

Xu, Ying, Wang, Qian, Li, Xiaozhen, Chen, Yingyan, Xu, Gang·2021·Environmental Toxicology

Abstract

Radiotherapy is a common therapy method for nasopharyngeal carcinoma (NPC) treatment; however, radioresistance greatly limits the clinical efficiency and prognosis of NPC patients. Therefore, it is extremely urgent to reveal the underlying mechanism contributing to radioresistance and find possible diagnostic biomarkers. Here, we collected the spheroids formed by NPC cells, which had been confirmed to hold the stem cell‐like traits, and found that these spheroids exhibited a certain degree of radioresistance. Additionally, NPC spheroids displayed a certain degree of ferroptosis resistance, as evident by the decrease of iron concentration in lysosomes and lipid peroxides oxygen, and increase of glutathione (GSH) level. Furthermore, we revealed that itraconazole triggered the ferroptosis of NPC spheroids, which is characterized as the increase of iron concentration and lipid peroxides oxygen, and decrease of GSH level, and decreased the cell viability of NPC spheroids. Notably, itraconazole partially reversed the radioresistance of NPC spheroids. Mechanistically, we found that itraconazole can sequester iron in lysosome and thus trigger ferroptosis; this is essential for itraconazole‐mediated attenuation on NPC spheroid stemness. Therefore, this study provides evidences showing that itraconazole might be used for killing NPC stem cells and thus attenuate radioresistance.

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Crossref · 10.1002/tox.23031

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Authors
Xu, Y., Wang, Q., Li, X., Chen, Y., & Xu, G.
Affiliations
Second Affiliated Hospital of Xi'an Jiaotong University (CN)
Corresponding author
Xu, Gang
Venue
Environmental Toxicology
Publisher
Wiley
Published
2020-09-20
Volume
36
Issue
2
Pages
257-266
ISSN
  • 1520-4081 (ISSN-L)
  • 1522-7278
OpenAlex
W3087461016
Cited by
51
References
35
Citations by year
2026: 3 · 2025: 11 · 2024: 11 · 2023: 12 · 2022: 9 · 2021: 4 · 2020: 1
FWCI
3.66
Type
journal article
Language
en
Open access
closed
Locations
  • Environmental Toxicology (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Pulmonary and Respiratory Medicine › Ferroptosis and cancer prognosis
  • Health Sciences › Medicine › Otorhinolaryngology › Head and Neck Cancer Studies
  • Health Sciences › Medicine › Oncology › Cancer Cells and Metastasis
Keywords
itraconazole, nasopharyngeal carcinoma, ferroptosis, radioresistance (biology), cancer stem cells, tumor spheroids, glutathione, lipid peroxidation, radiosensitization
MeSH terms
Nasopharyngeal Carcinoma, Ferroptosis, Animals, Cell Survival, Female, Humans, Mice, Nude, Nasopharyngeal Neoplasms, Radiation Tolerance, Neoplastic Stem Cells, Itraconazole, Spheroids, Cellular, Xenograft Model Antitumor Assays, Cell Line, Tumor, Mice

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