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上海中医药大学创新中药研究院,中药功效成分发掘与利用全国重点实验室(上海 201203)
陈昊元,男,硕士研究生,主要从事三尖杉碱类化合物的分离和生物合成研究工作
贺庆利,研究员,博士研究生导师; E-mail:qinglihe@shutcm.edu.cn
收稿:2025-04-22,
纸质出版:2025-12-10
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陈昊元,秦加旭,闫洪玲,等.三尖杉中5个生物碱类化合物的分离和生物活性研究[J].上海中医药杂志,2025,59(12):76-82.
CHEN Haoyuan,QIN Jiaxu,YAN Hongling,et al.Isolation and biological activities study of five alkaloid compounds from Cephalotaxus fortunei[J].Shanghai Journal of Traditional Chinese Medicine,2025,59(12):76-82.
陈昊元,秦加旭,闫洪玲,等.三尖杉中5个生物碱类化合物的分离和生物活性研究[J].上海中医药杂志,2025,59(12):76-82. DOI: 10.16305/j.1007-1334.2025.z20250422001.
CHEN Haoyuan,QIN Jiaxu,YAN Hongling,et al.Isolation and biological activities study of five alkaloid compounds from Cephalotaxus fortunei[J].Shanghai Journal of Traditional Chinese Medicine,2025,59(12):76-82. DOI: 10.16305/j.1007-1334.2025.z20250422001.
目的
2
发掘三尖杉的生物碱类成分,并探索其生物活性。
方法
2
利用硅胶色谱、葡聚糖凝胶LH-20色谱及半制备高效液相色谱等多种色谱技术,从三尖杉二氯甲烷部位分离生物碱类化合物;利用一维/二维核磁共振(1D/2D NMR)、高分辨电喷雾电离质谱(HR-ESI-MS)和电子圆二色谱(ECD)分析确定化合物结构;利用刃天青(Alamar Blue)法检测化合物对宫颈癌细胞HeLa的细胞毒性,以及化合物对过氧化氢(H
2
O
2
)诱导的人角质形成细胞(HaCaT)氧化损伤的保护作用。
结果
2
从三尖杉中共分离得到5个生物碱类化合物Cephalocyclidin A-
N
-oxide(1)、(
R
)-Fortunine(2)、4-Hydroxycephalotaxine(3)、Cephalocyclidin A(4)和Wilsonine(5),其中1为新化合物。体外活性检测显示,生物碱类化合物1~5没有明显的抗宫颈癌活性,其对HeLa细胞的半数抑制浓度(IC
50
)均
>
100 μmol/L。化合物1~5对H
2
O
2
诱导的HaCaT氧化损伤均具有显著的保护作用(
P
<
0.01),且能抑制H
2
O
2
刺激引起的活性氧(ROS)水平升高,其中化合物2、4和5的差异具有统计学意义(
P
<
0.05)。
结论
2
从三尖杉中分离得到的5种无侧链的生物碱类化合物对宫颈癌细胞无明显的抑制作用,但对H₂O₂诱导的HaCaT氧化损伤具有显著的保护作用。这些发现为三尖杉来源天然产物的功效研究提供了新的方向。
Objective
2
To investigate the alkaloid components of
Cephalotaxus fortunei
and explore their biological activities.
Methods
2
Alkaloids compounds were isolated from the dichloromethane fraction of
Cephalotaxus fortunei
using chromatographic techniques such as silica gel, glucan gel LH-20, and semi-preparative high-performance liquid chromatography. The structures of the compounds were elucidated via one-dimensional/two-dimensional nuclear magnetic resonance (1D/2D NMR), high-resolution electrospray ionization mass spectrometry (HR-ESI-MS), and electronic circular dichroism (ECD) analyses. The cytotoxic effect against HeLa cervical cancer cells and protective activity against H
2
O
2
-induced oxidative damage in Human keratinocytes (HaCaT) were assessed using the Alamar Blue assay.
Results
2
Five alkaloids compounds Cephalocyclidin A-
N
-oxide (1), (
R
)-Fortunine (2), 4-Hydroxycephalotaxine (3), Cephalocyclidin A (4), and Wilsonine (5) were isolated, of which compounds 1 is a new compound.
In vitro
activity assays showed that alkaloid compounds 1~5 had no significant anti-cervical cancer activity, and the median inhibitory concentration (IC
50
) values for these compounds against HeLa cells were all
>
100 μmol/L. Compounds 1~5 all exhibited significant protective effects against H
2
O
2
-induced oxidative damage in HaCaT (
P
<
0.01), and were able to inhibit the increase of reactive oxygen (ROS) levels caused by H
2
O
2
stimulation, among which the differences of compounds 2, 4 and 5 were statistically significant (
P
<
0.05).
Conclusions
2
The five alkaloid compounds without side chains isolated from
Cephalotaxus fortunei
had no significant inhibitory effect on cervical cancer cells. However, they demonstrated notable protective activity against H₂O₂-induced oxidative damage in HaCaT. These findings suggest a new direction for the efficacy study of natural products derived from
Cephalotaxus fortunei
.
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