ArticleClinical oral investigations2016
Phenethyl isothiocyanate enhances TRAIL-induced apoptosis in oral cancer cells and xenografts.
Article in Clinical oral investigations, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
1 citing paper in PubMed, 10 citations in OpenAlex.
- Oxidative Stress and Dietary Antioxidants in Head and Neck Cancer.Antioxidants (Basel, Switzerland) · 2025Review
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Authors and funding
6 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
objectivesTumor necrosis factor-related apoptosis-inducing ligand (TRAIL) has been regarded as a promising candidate for cancer therapy. However, most of oral cancer cell lines are resistant to the TRAIL-induced cytotoxicity. The aim of this study was to investigate the ability of phenethyl isothiocyanate (PEITC) to sensitize TRAIL-induced apoptosis in TRAIL-resistant oral cancer cells and xenografts. MATERIALS AND
methodsTerminal deoxynucleotidyl transferase-mediated dUTP nick-end labeling assay, Western blotting, and a mouse xenograft model were used to study the effects of PEITC and TRAIL on two TRAIL-resistant human oral cancer cells, SAS and Ca9-22.
resultsPEITC upregulated death receptor 4 (DR4) and DR5 protein expression and increased reactive oxygen species (ROS) production in both SAS and Ca9-22 cells. Antioxidant N-acetyl-L-cysteine (NAC) and c-Jun NH2-terminal kinase (JNK) inhibitor SP600125 inhibited PEITC-induced DR4 and DR5 expression. Inhibitor experiments showed that PEITC induced apoptosis through ROS-mediated JNK activation and upregulation of DR4 and DR5. Furthermore, treatment with PEITC significantly increased TRAIL-induced apoptosis in both cells. Combined treatment with PEITC and TRAIL had greater effect on the inhibition of tumor growth than either agent alone.
conclusionsWe showed for the first time that PEITC overcomes TRAIL resistance in oral cancer cells and enhance the therapeutic potential of TRAIL in vivo. CLINICAL RELEVANCE: PEITC, either alone or in combination with TRAIL, can be used as a new therapeutic approach for the treatment of oral cancers.
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