口腔鳞状细胞癌细胞TLR3表达及其配体poly(I:C)的诱导凋亡作用

目的研究口腔鳞状细胞癌细胞中Toll样受体3(TLR3)的表达及其配体poly(I:C)的生物学作用。方法 RT-PCR和流式细胞术检测口腔鳞状细胞癌细胞系CAL-27和HB中TLR3mRNA和蛋白表达。以100μg/mLpoly(I:C)处理CAL-27,分别于刺激后24、48和72h时点采用MTT比色法测定细胞活力,24h时点采用流式细胞术检测细胞凋亡;并设立空白对照。结果 CAL-27和HB中TLR3mRNA和蛋白均呈高表达。CAL-27经poly(I:C)处理后,各检测时点的细胞活力均显著低于空白对照细胞(P<0.05);细胞凋亡率明显高于空白对照细胞[(16.67±1.202)...

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Published in上海交通大学学报(医学版) Vol. 31; no. 1; pp. 5 - 8
Main Author 罗清琼 陈万涛 胡水清 陈福祥
Format Journal Article
LanguageChinese
Published 上海交通大学,医学院附属第九人民医院,检验科,上海,200011%上海交通大学,医学院附属第九人民医院,上海市口腔医学重点实验室,上海,200011 2011
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Summary:目的研究口腔鳞状细胞癌细胞中Toll样受体3(TLR3)的表达及其配体poly(I:C)的生物学作用。方法 RT-PCR和流式细胞术检测口腔鳞状细胞癌细胞系CAL-27和HB中TLR3mRNA和蛋白表达。以100μg/mLpoly(I:C)处理CAL-27,分别于刺激后24、48和72h时点采用MTT比色法测定细胞活力,24h时点采用流式细胞术检测细胞凋亡;并设立空白对照。结果 CAL-27和HB中TLR3mRNA和蛋白均呈高表达。CAL-27经poly(I:C)处理后,各检测时点的细胞活力均显著低于空白对照细胞(P<0.05);细胞凋亡率明显高于空白对照细胞[(16.67±1.202)%vs(7.00±1.155)%](P<0.05)。结论口腔鳞状细胞癌细胞内高表达TLR3,其配体poly(I:C)能诱导口腔鳞状细胞癌细胞凋亡。
Bibliography:LUO Qing-qiong1; CHEN Wan-tao2; HU Shui-qing1; CHEN Fu-xiang1(1.Department of Laboratory; 2.Shanghai Key Laboratory of Stomatology; The Ninth People's Hospital; Shanghai Jiaotong University School of Medicine; Shanghai 200011; China)
31-1259/R
Objective To investigate the expression of Toll-like receptor 3(TLR3) and the biological characteristics of its ligand poly(I:C) in oral squamous carcinoma cells.Methods The expression of TLR3 mRNA and protein in oral squamous carcinoma CAL-27 cells and HB cells was detected by RT-PCR and flow cytometry.CAL-27 cells were treated with 100 μg/mL poly(I:C),cell viability was determined by MTT assay at 24,48 and 72 h after stimulation,and cell apoptosis was detected by flow cytometry.Besides,blank controls were...
poly(I:C); Toll-like receptor; oral squamous carcinoma; apoptosis
ISSN:1674-8115
DOI:10.3969/j.issn.1674-8115.2011.01.002