Zheng Guo Dong, Hu Ping Jun, Chao Ying Xin, Zhou Ying, Yang Xiu Juan, Chen Bai Zhong, Yu Xi Yong, Cai Yi
Key Laboratory of Molecular Target & Clinical Pharmacology State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences & the Fifth Affiliated Hospital Guangzhou Medical University Guangzhou 511436 China.
Guangdong Xinbaotang Biological Technology Co, Ltd Jiangmen China.
Food Sci Nutr. 2019 Feb 10;7(3):1104-1112. doi: 10.1002/fsn3.953. eCollection 2019 Mar.
BACKGROUND/AIM: Nobiletin, a major polymethoxyflavones (PMFs) from citri reticulatae pericarpium (CRP), can inhibit several forms of cancer proliferation. However, the effects of nobiletin on nasopharyngeal carcinoma (NPC) C666-1 cells remain largely unknown.
Cell counting kit 8 (CCK8) assay was used to measure cell vitality. Flow cytometry was performed to measure the apoptosis rate. Quantitative real-time polymerase chain reaction (qRT-PCR) and Western blot analysis were applied to determine the expression of mRNA and protein, respectively.
We showed that the proliferation rate of C666-1 cells was inhibited and the apoptosis rate was raised after treating with nobiletin. Moreover, nobiletin inhibited the expression of poly(ADP-ribose)polymerase-2 (PARP-2), and the tumor suppression effect of nobiletin on C666-1 is associated with PARP-2-dependent pathway.
We demonstrated for the first time that nobiletin inhibited the growth of C666-1 cells, which may be relative to its regulation on PARP-2/SIRT1/AMPK signaling pathway. Our result implied that nobiletin may serve as a strategy to treat nasopharyngeal carcinoma.
背景/目的:川陈皮素是一种从陈皮中提取的主要多甲氧基黄酮(PMFs),能够抑制多种癌症的增殖。然而,川陈皮素对鼻咽癌(NPC)C666-1细胞的影响仍不清楚。
采用细胞计数试剂盒8(CCK8)检测细胞活力。通过流式细胞术检测细胞凋亡率。分别应用定量实时聚合酶链反应(qRT-PCR)和蛋白质免疫印迹法检测mRNA和蛋白质的表达。
我们发现川陈皮素处理后,C666-1细胞的增殖率受到抑制,凋亡率升高。此外,川陈皮素抑制了聚(ADP-核糖)聚合酶-2(PARP-2)的表达,川陈皮素对C666-1细胞的肿瘤抑制作用与PARP-2依赖的信号通路有关。
我们首次证明川陈皮素抑制C666-1细胞的生长,这可能与其对PARP-2/沉默信息调节因子1/腺苷酸活化蛋白激酶(PARP-2/SIRT1/AMPK)信号通路的调控有关。我们的研究结果表明川陈皮素可能是一种治疗鼻咽癌的策略。