| 两种牛蛙活性肽结构及体外抗肿瘤细胞增殖作用的研究 |
| |
| 引用本文： | 王选,马吉飞,赵瑞利,胡烨,申杰,林东东.两种牛蛙活性肽结构及体外抗肿瘤细胞增殖作用的研究[J].中国畜牧兽医,2015,42(5):1211-1217. |
| |
| 作者姓名： | 王选 马吉飞 赵瑞利 胡烨 申杰 林东东 |
| |
| 作者单位： | 1. 天津农学院动物科学与动物医学学院, 天津 300384;2. 中国科学院天津工业生物技术研究所, 天津 300308 |
| |
| 基金项目： | 国家自然科学基金资助项目(31201886);天津市应用基础与前沿技术研究计划一般项目(14JCYBJC30000);天津农学院科技发展基金计划(2011D03、2012N18) |
| |
| 摘 要： | 试验旨在研究新发现的两种牛蛙活性肽对人肺癌细胞NCI-H446、人乳腺癌细胞MCF-7及小鼠白血病细胞K562 3种肿瘤细胞体外增殖的影响,为新的多肽抗肿瘤药筛选提供依据。本试验利用圆二色谱(CD)法检测两种新牛蛙活性肽的二级结构,通过MTS细胞毒试验测定不同浓度的两种新牛蛙活性肽对人肺癌细胞NCI-H446、人乳腺癌细胞MCF-7及小鼠白血病细胞K562 3种瘤细胞体外增殖的影响。圆二色谱法结果显示,Temporin-Lb的二级空间结构为聚脯氨酸Ⅱ型螺旋(PPⅡ)结构,Catesbeianin-1a的二级空间结构为无规则卷曲。MTS细胞毒试验结果显示,给予Catesbeianin-1a的3种瘤细胞培养24 h后,瘤细胞形态无明显变化,正常增殖,而给予Temporin-Lb的3种瘤细胞培养24 h后,瘤细胞发生皱缩、细胞变圆、脱落甚至死亡,增殖受到抑制,其中对Temporin-Lb在4~40 μmol/L浓度范围内对小鼠白血病细胞K562的抑制效果最为明显。结果表明,新牛蛙活性肽Temporin-Lb具有一定的抑瘤作用,Catesbeianin-1a对瘤细胞的体外增殖没有明显影响。
|
| 关 键 词： | 活性肽Temporin-Lb 活性肽Catesbeianin-1a 圆二色谱法(CD) MTS细胞毒试验 体外抑瘤 |
Study on the Structure of Two New Bioactive Peptides from Rana catesbeiana and their Antitumor Effects in vitro |
| |
| WANG Xuan,MA Ji-fei,ZHAO Rui-li,HU Ye,SHEN Jie,LIN Dong-dong.Study on the Structure of Two New Bioactive Peptides from Rana catesbeiana and their Antitumor Effects in vitro[J].China Animal Husbandry & Veterinary Medicine,2015,42(5):1211-1217. |
| |
| Authors: | WANG Xuan MA Ji-fei ZHAO Rui-li HU Ye SHEN Jie LIN Dong-dong |
| |
| Institution: | 1. Department of Animal Science and Animal Medicine, Tianjin Agricultural University, Tianjin 300384, China;2. Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin 300308, China |
| |
| Abstract: | The study was aimed to research the growth inhibitory effects of two new bioactive peptides Temporin-Lb and Catesbeianin-1a from Rana catesbeiana on human lung cancer NCI-H446 cells, breast cancer MCF-7 cells and mice leukemia K562 cells, and provide the basis for selecting the new peptide antitumor drugs.The second structures of two bioactive peptides were tested by circular dichroism spectrum (CD), and the effects of the two new bioactive peptides on human lung cancer NCI-H446 cells, breast cancer MCF-7 cells and mice leukemia K562 cells were examined with MTS cytotoxicity assay.The circular dichroism spectrum results showed the secondary structure of Temporin-Lb was PPⅡ, and the secondary structure of Catesbeianin-1a was random coil.Using MTS cytotoxicity assay, it was found that given Catesbeianin-1a, the sharp of the three cancer cells above had little changed after culturing for 24 h, and the three cancer cells promoted normal.Given Temporin-Lb, the cell morphology of three cancer cells had changed after culturing for 24 h, the growth of the three cancer cells above had been inhibited, especially the bioactive peptide Temporin-Lb had a sharp antitumor effect to mice leukemia K562 cells between the concentration of 4 and 40 μmol/L.Bioactive peptide Catesbeianin-1a had no obvious effect on proliferation of the three cancer cells above.Bioactive peptide Temporin-Lb had a certain inhibitory effect to tumor cells. |
| |
| Keywords: | bioactive peptide Temporin-Lb bioactive peptide Catesbeianin-1a circular dichroism spectrum (CD) MTS cytotoxicity assay antitumor effect in vitro |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《中国畜牧兽医》浏览原始摘要信息 |
| 点击此处可从《中国畜牧兽医》下载免费的PDF全文 |
|
