Anti-cancer effects of disulfiram in head and neck squamous cell carcinoma via autophagic cell death

Young Min Park, Yoon Young Go, Sun Hwa Shin, Jae-Gu Cho, Jeong-Soo Woo, Jae-Jun Song

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Background Disulfiram (DSF), which is used to treat alcohol dependence, has been reported to have anti-cancer effects in various malignant tumors. In this study, we investigated the anti-cancer effects and mechanism of DSF in HNSCC. Methods Head and neck squamous carcinoma cell lines (FaDu and Hep2) were used to analyze the anti-cancer effects of DSF. The anti-cancer effects of DSF were confirmed in vivo using a xenograft tumor model. Results The anti-cancer effects of DSF in HNSCC were found to be copper (Cu) dependent. Specifically, DSF/Cu markedly inhibited HNSCC at a concentration of 1 μM. After DSF/Cu administration, production of reactive oxygen species (ROS) was remarkable starting at 0.5 μM, suggesting that the inhibitory effects of DSF/Cu on HNSCC are mediated through the formation of ROS. The levels of phospho-JNK, phospho-cJun and phospho-p38 were increased after DSF/Cu treatment while levels of phospho-Akt were decreased. These results suggested that the inhibitory effects of DSF/Cu on HNSCC cells involve ROS formation and down-regulation of Akt-signaling. Through these molecular mechanisms, DSF ultimately induce the inhibitory effects on HNSCC cell lines mainly through autophagic cell death, not apoptotic cell death. Lastly, we investigated the clinical relevance of DSF/Cu using a HNSCC xenograft animal model, which showed that tumor growth was remarkably decreased by DSF (50 mg/kg injection). Conclusion In treating patients with HNSCC, DSF may contribute to improved HNSCC patient’s survival. The characteristic anti-cancer effects of DSF on HNSCC may suggest new therapeutic potential for this medication in HNSCC patients.

Original languageEnglish
Article numbere0203069
JournalPLoS One
Volume13
Issue number9
DOIs
Publication statusPublished - 2018 Sep 1

Fingerprint

disulfiram
Disulfiram
autophagy
Autophagy
squamous cell carcinoma
Cell death
neck
Neoplasms
Tumors
reactive oxygen species
Reactive Oxygen Species
antineoplastic activity
Carcinoma, squamous cell of head and neck
Epithelial Cells
Heterografts
neoplasms
cell lines
Cell Line

ASJC Scopus subject areas

  • Biochemistry, Genetics and Molecular Biology(all)
  • Agricultural and Biological Sciences(all)

Cite this

Anti-cancer effects of disulfiram in head and neck squamous cell carcinoma via autophagic cell death. / Park, Young Min; Go, Yoon Young; Shin, Sun Hwa; Cho, Jae-Gu; Woo, Jeong-Soo; Song, Jae-Jun.

In: PLoS One, Vol. 13, No. 9, e0203069, 01.09.2018.

Research output: Contribution to journalArticle

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