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二氢鞘氨醇联合佛波酯增强NB4细胞中miRNA-21的表达    

Induction of miRNA-21 expression by a combination of sphinganine and 12-O-tetradecanoylphorbol 13-acetate in human promyelocytic leukemia(NB4)cells

文献类型:期刊文献

中文题名:二氢鞘氨醇联合佛波酯增强NB4细胞中miRNA-21的表达

英文题名:Induction of miRNA-21 expression by a combination of sphinganine and 12-O-tetradecanoylphorbol 13-acetate in human promyelocytic leukemia(NB4)cells

作者:王晶[1];柳立军[2];楚慧媛[1];李海龙[1];陈彻[1]

第一作者:王晶

机构:[1]甘肃中医学院临床医学系,甘肃兰州730000;[2]兰州大学第一医院生殖医学中心,甘肃兰州730000

第一机构:甘肃中医药大学临床医学院

年份:2013

卷号:49

期号:5

起止页码:79

中文期刊名:西北师范大学学报(自然科学版)

外文期刊名:Journal of Northwest Normal University(Natural Science)

收录:CSTPCD;;北大核心:【北大核心2011】;

基金:甘肃中医学院引进入才项目(BH2013-001)

语种:中文

中文关键词:二氢鞘氨醇;佛波酯;早幼粒白血病细胞系NB4;microRNA;细胞凋亡

外文关键词:sphinganine; 12-O-tetradecanoylphorbol 13-acetate; human promyelocytic leukemia cells;microRNA; cell apoptosis

摘要:为了研究二氢鞘氨醇(Sphingonine,SA)和佛波酯(12一◇Tetradecanoylphorbol 13-acetate,TPA)联合使用后对人早幼粒白血病细胞NB4的生物学影响,利用四唑盐(3-(4,5-Dimethylthiahiazol-2-yl)-2,5-diphenytetrazolium bromide,MTT)比色法、流式细胞术和实时定量PCR等方法检测了细胞形态、生长凋亡和肿瘤相关基因miRNA-21的表达变化情况.结果显示,SA2.15mmol·L-1+TPA10nmol·L^-联合用药组与TPA10nmol·L^-1单独处理组相比,细胞出现体积变小、膜皱缩和出芽等明显凋亡特征;SA2.15mm01·L^-1+TPA10nmo·L^-1联合用药组细胞生长抑制率和凋亡率均明显高于SA或TPA单药组(P〈0.05);miRNA-21成熟体和初级转录本的表达在SA2.15mmol·L^-1+TPA10nmol·L^-1联合用药组均比SA或TPA单药组高2~4倍(P〈0.05).结果表明sA联合TPA能显著增强抗白血病效应,其作用机制与miRNA-21的诱导表达相关.
To investigate the effects of sphinganine(SA) and 12-O-tetradecanoylphorbol 13-acetate(TPA) on human promyelocytic leukemia(NB4) cells, this study analyze the cell morphorlogies, growth and the expression of cancer-related gene miRNA-21 using MTT colorimetric assay, flow cytometry analysis, and real-time RT-PCR. The results show that the cells treated with SA 2.15 mmol·L^-1 +TPA 10 nmol·L^-1displayed apopotositic features compared with TPA single treated cells, including smaller, shriveled and vacuolate the inhibition rate and apopotosis of SA 2.15 mrnol. L 1 + TPA 10 nmol·L^-1 group are signaificantly higher than that of SA or TPA single group(P〈0.05) ; moreover, the expression levels of mature miRNA-21 and primary transcript in cells treated with SA 2.15 mmol·L^-1+ TPA 10 nmol·L^-1 are increased 2-4 folds than in SA or TPA single group (P〈0.05). Thus, SA enhanced the antileukemia activity of TPA, which is correlated with the induction of miRNA-21.

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