Bufadienolides and ecdysteroids from the whole plants of Helleborus niger and their cytotoxicity

Bufadienolides and ecdysteroids from the whole plants of Helleborus niger and their cytotoxicity
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黑铁卢全草中蟾蜍二烯内酯和蜕皮甾醇及其细胞毒性

DOI:
10.1007/s11418-021-01481-6
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发表时间:
2021
影响因子:
3.3
通讯作者:
Mimaki Yoshihiro
Mimaki Yoshihiro
中科院分区:
医学3区
文献类型:
--
作者:
Yokosuka Akihito;Inomata Mina;Yoshizawa Yuka;Iguchi Tomoki;Mimaki Yoshihiro

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从Helleborus nigerL 的全草中分离出一种新的蟾蜍二烯内酯(1)、两种新的蟾蜍二烯内酯苷(2和3)、一种新的蜕皮甾类(4)和四种已知化合物(5-8)。 (毛茛科)。新化合物 (1-4) 的结构通过光谱分析确定,包括 2D NMR 光谱数据和水解研究。化合物 1-6 对 HL-60 人白血病细胞、A549 人肺腺癌细胞和 SBC-3 人小细胞肺癌细胞表现出细胞毒性,IC50 值范围为 0.0055 至 1.9 µM。用3或4处理的HL-60细胞表现出细胞凋亡特征,如核染色质浓缩、亚G1细胞积聚和caspase-3/7激活。
A new bufadienolide (1), two new bufadienolide glycosides (2and3), a new ecdysteroid (4), and four known compounds (5–8), were isolated from the whole plants ofHelleborus nigerL. (Ranunculaceae). The structures of the new compounds (1–4) were determined by spectroscopic analysis, including 2D NMR spectral data, and hydrolytic studies. Compounds1–6showed cytotoxicity against HL-60 human leukemia cells, A549 human lung adenocarcinoma cells, and SBC-3 human small-cell lung cancer cells, with IC50values ranging from 0.0055 to 1.9 µM. HL-60 cells treated with either3or4showed apoptosis characteristics, such as nuclear chromatin condensation, accumulation of sub-G1cells, and activation of caspase-3/7.
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