Apigenin induces apoptosis via tumor necrosis factor receptor- and Bcl-2-mediated pathway and enhances susceptibility of head and neck squamous cell carcinoma to 5-fluorouracil and cisplatin

详细信息	查看全文 | 推荐本文 |

• 作者：Leong-Perng Chan^a ; ^b ; Tzung-Han Chou^c ; Hsiou-Yu Ding^d ; Pin-Ru Chen^d ; Feng-Yu Chiang^b ; Po-Lin Kuo^a ; ^e ; ^{kuopolin@seed.net.tw} ; Chia-Hua Liang^f ; ^{tinna_ling@mail.chna.edu.tw}
• 关键词：5-Fu ; 5-fluorouracil ; EGFR ; epidermal growth factor receptor ; HNSCC ; human head and neck squamous cell carcinoma ; NF-魏B ; nuclear transcription factor kappa B ; ROS ; reactive oxygen species ; TNF-R ; tumor necrosis factor receptor ; TRAIL-R ; TNF-related apopt
• 刊名：Biochimica et Biophysica Acta (BBA)/General Subjects
• 出版年：2012
• 期刊代码：16_03044165
• 类别：bio
• 出版时间：July, 2012
• 卷：1820
• 期：7
• 页码：1081-1091
• 文件大小：1608 K

摘要

Background

Apigenin, a natural plant flavone, may have chemopreventive and therapeutic potentials for anti-inflammatory, antioxidant, and anti-cancer. Nevertheless, the anti-tumor effect of apigenin on human head and neck squamous cell carcinoma (HNSCC) is not fully understood.

Methods

The antioxidant capacity and protective effects of apigenin against oxidative stress in murine normal embryonic liver BNLCL2 cells are examined. Cell viability, morphologic change, clonogenic survival, cell cycle distribution, reactive oxygen species (ROS) production, glutathione formation, and death receptors- and Bcl-2-mediated caspase pathways of HNSCC SCC25 cells and A431 cells with apigenin are investigated.

Results

Apigenin inhibits the growth of SCC25 and A431 cells and induces cell cycle arrest in the G₂/M phase. Apigenin has an antioxidant capacity as well as the ability to inhibit lipid peroxidation. It protects BNLCL2 cells against oxidative damage, and is potentially able to prevent cancer. Apigenin increases intracellular ROS levels and reduces levels of glutathione; it also induces cell apoptosis via tumor necrosis factor receptor (TNF-R)-, TNF-related apoptosis-inducing ligand receptor (TRAIL-R)-, and Bcl-2-mediated caspase-dependent cell death pathways in SCC25 cells. The combination of apigenin with 5-fluorouracil (5-Fu) or cisplatin induces the dramatic death of SCC25 cells.

Conclusions

Apigenin induces SCC25 cell apoptosis via the up-regulation of both TNF-R and TRAIL-R signaling pathways, and has a synergistic effect on the inhibition of cell proliferation in combination with 5-Fu or cisplatin.

General significance

These analytical findings suggest that apigenin may be a good therapeutic agent against HNSCC cells.