Page 180 - 《广西植物》2023年第11期
P. 180
2 1 4 0 广 西 植 物 43 卷
( 1. Department of Pharmacyꎬ People’s Hospital of Anshun Cityꎬ Anshun 561000ꎬ Guizhouꎬ Chinaꎻ 2. Guizhou University of
Traditional Chinese Medicineꎬ Guiyang 550025ꎬ Chinaꎻ 3. The Key Laboratory of Chemistry for Natural
Products of Guizhou Province and Chinese Academy of Sciencesꎬ Guiyang 550014ꎬ China )
Abstract: In order to study the chemical constituents from Carpesium cernuum and their inhibitory effects on leukemia
cells in vitro. The chemical constituents from ethyl acetate fraction of C. cernuum were isolated and purified by silica gel
column chromatographyꎬ Sephadex LH ̄20 column chromatography and macroporous adsorption resinꎬ and their structures
1 13
were identified by means of various spectroscopic techniques such as H NMRꎬ C NMR and MS. The inhibitory effects
of compounds 1- 10 on leukemia cells (K562ꎬ HEL) in vitro were determined by MTT assay. The results were as
follows: ( 1 ) Eleven compounds were isolated and identified as 2ꎬ 9 ̄epoxy ̄5ꎬ 9 ̄dihydroxy ̄8 ̄angeloyloxy ̄11 ̄
methoxymethyl ̄4(15) ̄germacraen ̄6ꎬ 12 ̄olide (1)ꎬ cardivin D (2)ꎬ cernuumolide I (3)ꎬ cernuumolide J (4)ꎬ 8 ̄
hydroxy ̄9ꎬ 10 ̄diisobutyryloxythymol (5)ꎬ (2Eꎬ 6Zꎬ 10Eꎬ 12R) ̄7 ̄[(acetyloxy)methyl] ̄3ꎬ 11ꎬ 15 ̄trimethylhexadeca ̄
2ꎬ 6ꎬ 10ꎬ 14 ̄tetraene ̄1ꎬ 12 ̄diol ( 6 )ꎬ 9ꎬ 10 ̄dihydroxyoctadecanoate ( 7 )ꎬ 1ꎬ 6 ̄dihydroxy ̄8 ̄hydroxymethyl ̄
anthraquinone (8)ꎬ emodin (9)ꎬ 4 ̄megastigmen ̄3ꎬ 9 ̄dione (10)ꎬ β ̄sitosterol (11). Among themꎬ Compound 1 was
identified as a new compoundꎬ compounds 5ꎬ 7-10 were isolated from Carpesium for the first timeꎬ compounds 2ꎬ 5-10
were isolated from C. cernuum for the first time. ( 2) The results of activity test showed that cardivin D ( 2)ꎬ
cernuumolide I ( 3) and cernuumolide J ( 4) had good inhibitory effects on leukemia cells in vitro. The IC of
50
 ̄1
compounds 2-4 against K562 cells and HEL cells were (2.27 ± 0.46)ꎬ (5.53 ± 0.41)ꎬ (3.90 ± 0.80) μmolL and
 ̄1
(1.84 ± 0.14)ꎬ (2.36 ± 0.90)ꎬ (2.31 ± 1.17) μmolL ꎬ respectively. The study enriches the chemical constituents
of C. cernuumꎬ and provides a material basis for the development of anti ̄leukemia drugs.
Key words: Carpesium cernuumꎬ chemical constituentsꎬ isolation and purificationꎬ structure identificationꎬ leukemia
cellsꎬ inhibition effect
烟管头草( Carpesium cernuum) 又名杓儿菜、 al.ꎬ 2021ꎻ 杨 宝 嘉 等ꎬ 2021ꎻ Zhong et al.ꎬ 2022ꎻ
烟袋草ꎬ是天名精属( Carpesium) 植物的模式种ꎬ Wang et al.ꎬ 2022ꎻYang et al.ꎬ 2022ꎻShen et al.ꎬ
主要分布在我国四川、云南、贵州、湖南及陕西等 2022ꎻ陈洁等ꎬ2022)ꎮ 课题组前期运用多种色谱
地ꎬ生于路边荒地及山坡、沟边等处ꎬ在民间把其 及波谱技术从烟管头草中分离鉴定了 5 个新吉玛
与金挖耳当作同一种使用( 中国科学院中国植物 烷型倍半萜类化合物ꎬ活性测试表明其具有一定
志编辑委员会ꎬ1979) ꎮ 全草入药ꎬ性湿微苦ꎬ有 的抗肿瘤活性ꎬ特别是对白血病细胞具有较强的
小毒ꎬ治疟疾ꎬ喉炎ꎻ鲜叶外用治疮痛ꎬ根治痢疾、 抑制作用( Yan et al.ꎬ 2018ꎬ2021)ꎮ 然而ꎬ本文发
牙痛、子宫 脱 垂、 脱 肛 ( 张 志 刚 等ꎬ2005) ꎮ 现 代 现的新化合物与近两年国内外学者以及课题组前
药 理 学 研 究 表 明ꎬ 其 具 有 抗 肿 瘤 ( Kim et al.ꎬ 期分到的新吉玛烷型倍半萜在结构上有一定的差
2007ꎻLiu et al.ꎬ 2016ꎻDang et al.ꎬ 2019) 、抗炎 异ꎬ主要表现为该化合物在环外有一个氧桥ꎮ 此
( Liu et al.ꎬ 2010) 和 抗 寄 生 虫 ( Chung & Moonꎬ 外ꎬ活性 测 试 发 现 该 新 化 合 物 无 明 显 的 抗 肿 瘤
2009ꎻKim et al.ꎬ 2009) 等药理作用ꎮ 相关研究 活性ꎮ
表明ꎬ烟管头草的化学成分包括倍半萜、单萜、二 研发高效低毒的抗肿瘤药物是医疗行业亟须
萜、三萜、香豆素、木脂素、挥发油、黄酮、甾醇、苯 解决的关键性问题ꎮ 基于本课题组前期研究ꎬ为
酚、糖苷类等ꎬ其中主要成分为倍半萜类化合物 深入阐明烟管头草的抗肿瘤活性物质基础ꎬ本研
( Ma et al.ꎬ 2008ꎻ Zhang et al.ꎬ 2015ꎻ 王 坤 等ꎬ 究以烟管头草为研究对象ꎬ依托贵州民族医药研
2019ꎻ冯树慧等ꎬ2022) ꎮ 发平台和现代先进的仪器设备ꎬ采用多种色谱分
天名精属植物中含有丰富的倍半萜类成分ꎬ 离技术、现代波谱学鉴定技术以及现代药理学技
近两年国内外学者从中共分离得到 51 个倍半萜 术ꎬ拟探讨以下问题:(1) 烟管头草乙酸乙酯部位
类化合物ꎬ包括 5 个新的吉玛烷型倍半萜ꎬ并研究 的化学成分ꎻ(2)分离得到的部分化合物对白血病
了其抗肿瘤、抗炎等活性( Wu et al.ꎬ 2021ꎻYan et 细胞的体外抑制作用ꎮ