Suppression of Interleukin 6 and 8 Production in Head and Neck Cancer Cells With Curcumin via Inhibition of Iκβ Kinase

被引:59
作者
Cohen, Alen N.
Veena, Mysore S. [2 ]
Srivatsan, Eri S. [2 ]
Wang, Marilene B. [1 ,2 ]
机构
[1] Univ Calif Los Angeles, David Geffen Sch Med, Dept Surg, Div Head & Neck Surg, Los Angeles, CA 90095 USA
[2] Vet Affairs Greater Los Angeles Healthcare Syst, Dept Surg, Los Angeles, CA USA
关键词
B KINASE; TRANSCRIPTION FACTOR; CYTOKINE EXPRESSION; TUMOR-GROWTH; CARCINOMA; SURVIVAL; ACTIVATION; PROLIFERATION; ANGIOGENESIS; DIFERULOYLMETHANE;
D O I
10.1001/archotol.135.2.190
中图分类号
R76 [耳鼻咽喉科学];
学科分类号
100213 ;
摘要
Objectives: To evaluate the effect of curcumin on production of interleukin 6 (IL-6) and 8 (IL-8) in head and neck squamous cell carcinoma (HNSCC) cell lines and to determine the mechanism by which these effects are modulated. Curcumin suppression of HNSCC is believed to be partly due to inhibition of the transcription factor nuclear factor-kappa beta (NF-kappa beta). Interleukin 6 and IL-8 are cytokines induced by NF-kappa beta activation with elevated levels in the serum of patients with HNSCC. Design: We treated HNSCC cell lines CCL23, CAL27, UM-SCC1, and UM-SCC14A with increasing doses of curcumin and measured IL-6 and IL-8 levels using an enzyme-linked immunosorbent assay. Setting: Levels of NF-omicron beta, I kappa beta kinase (IKK), and phosphorylated I kappa beta were analyzed bymeans of Western blot. The IKK activity was measured in UM-SCC14A cells using an IKK-specific I kappa beta alpha substrate after treatment with curcumin. Main Outcome Measures: Reverse transcription polymerase chain reaction was performed to determine the effect of curcumin on the expression of IL-6 and IL-8. Results: Curcumin treatment resulted in dose-dependent inhibition of IL-6 and IL-8 in all cell lines. All cell lines had similar NF-kappa beta levels; however, UM-SCC1 and UM-SCC14A had significantly higher I kappa beta kinase levels and required considerably higher doses of curcumin before inhibition of IL-6 and IL-8 occurred. Curcumin treatment resulted in inhibition of IKK activity and inhibition of IL-6 and IL-8 expression. Conclusions: Curcumin significantly reduces IL-6 and IL-8 levels in HNSCC cell lines. This mechanism appears to be mediated via inhibition of I kappa beta-kinase activity in the NF-kappa beta pathway. Interleukins 6 and 8 have potential use as biomarkers to measure the efficacy of treatment with curcumin.
引用
收藏
页码:190 / 197
页数:8
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