The discovery of antitumor Lead drugs from the national herbal medicine is an important method in antitumor drug research. Salvia roborowskii Maxim, named JiZi-GaBao,is a characteristic national herbal medicine of Tibetan nationality. In our previous systematical research of chemical components, we have got more than 30 terpenes compounds, including two new sesquiterpanes. This project is the systematical research of antitumor activity ingredients about Salvia roborowskii Maxim. Antitumor active component had been isolated from the Salvia roborowskii Maxim,using the method of antitumor activities test in vitro tumor experimental tracer of silica gel column chromatography and HPLC half preparation step separation. Furthermore, we well take full advantage of chromatographic technique, such as UPLC/MS, semi-MPLC and prep-HPLC, to realize the rapid separation and enrichment drug ingredients. For the pharmacodynamic component with corroborant activity and structure, we will explore antitumor activities test in vitro and in vivo and comprehensive evaluate its antitumor activity and mechanisms. It can as a guide to find 1-2 good antitumor activity ingredients or leading drugs and can provide material base for the development of new cancer drugs. This project implementation can lays the foundation for national drug development and he plant resource utilization.
从民族药物中寻找抗肿瘤成分或先导分子是发现抗肿瘤药物的重要途径。粘毛鼠尾草藏药名吉子嘎保,是藏族民间药物。前期已对其化学成分进行了研究,分离了20多个萜类化合物,其中有2个新倍半萜化合物。本项目拟对粘毛鼠尾草萜类抗肿瘤活性成分进行深入研究,采用体外活性示踪下的硅胶柱层析和HPLC半制备梯级分离方法,分离抗肿瘤活性成分,重点关注活性成分分和先导性成分,充分利用UPLC/MS、semi-MPLC和prep-HPLC等先进技术,实现药效成分的快速分离富集;对于活性和结构确证的药效物质,进一步进行体内、体外抗肿瘤活性对比研究,综合评价其抗肿瘤活性,探讨其诱导细胞凋亡及细胞周期阻滞,抗血管新生等抗肿瘤作用机制,进而寻找出1-2个结构新颖、高效低毒、选择性好的抗肿瘤活性药物或先导化合物,为开发新型抗癌药物提供物质基础,为民族药物开发及该植物资源利用奠定基础。
粘毛鼠尾草藏药名吉子嘎保,是藏族民间药物。本项目对粘毛鼠尾草萜类抗肿瘤活性成分进行系统研究,采用硅胶柱层析和HPLC半制备梯级分离方法,利用UPLC/MS、semi-MPLC和prep-HPLC等先进技术,分离抗肿瘤活性成分,分离鉴定了54个化合物,其中萜类化合物44个,包含有2个新倍半萜化合物8β-acetoxy-3β,4α;9β,10α-biepoxygermacr-7(11)-ene-12,6αolide,3β,6α,8α- triacetoxy-4α-hydroxyguai-10(14)-ene和一个新三萜化合物Epocy-17-epi-cycloartan-6β, 15,25-triol-3,6-dione,10个黄酮甾体等其他化合物。对粘毛鼠尾草中的一对异构体1β,10α:4α,5β-Diepoxy-6β-acetoxy-8β-hydroxy glechoman olide和1β,10α:4α,5β-diepoxy-6β-acetoxy-8α-hydroxyglech omanolide进行了气相色谱,X-单晶衍射等化学表征,研究了其在不同溶剂中的平衡成分和溶剂效应。对其中的31个化合物进行了MTT,MTS抗肿瘤活性研究,发现化合物4,5,7,10,11,12,19,20,21,27对HL-60细胞有很好的抑制作用, 化合物1,5,6,7,8,10,12,13,14,15,22,23对 Hela细胞有很好的抑制作用,化合物6,7,8,10,13,14,15,22,27对CMMC-7721细胞有很好的抑制作用。抗肿瘤机制研究发现化合物15可以通过活化Caspase3途径来抑制肿瘤细胞增殖。本项目为寻找出结构新颖、高效低毒、选择性好的抗肿瘤活性药物或先导化合物,为开发新型抗癌药物提供物质基础,为民族药物开发及该植物资源利用奠定了物质基础。
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数据更新时间:2023-05-31
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