New Mandelalides Expand a Macrolide Series of Mitochondrial Inhibitors.

New Mandelalides Expand a Macrolide Series of Mitochondrial Inhibitors.
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新的曼德拉内酯扩展了大环内酯系列线粒体抑制剂。

DOI:
10.1021/acs.jmedchem.7b00990
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发表时间:
2017
影响因子:
7.3
通讯作者:
McPhail,KerryL
McPhail,KerryL
中科院分区:
医学1区
文献类型:
--
作者:
Nazari,Mohamad;Serrill,JeffreyD;Wan,Xuemei;Nguyen,MinhH;Anklin,Clemens;Gallegos,DavidA;Smith3rd,AmosB;Ishmael,JaneE;McPhail,KerryL

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Mandelalides A-D(1-4)是一种已知的大环聚酮,具有不同寻常的生物活性,受复合糖基化和培养细胞生长阶段的影响。其他天然同族化合物——扁桃醛E-L(5-12)的分离和鉴定,以及合成化合物1和12,以及副扁桃醛A甲酯(13)的供应,现已促进了作用机制和构效关系的研究。糖基化扁桃醛是活细胞中有氧呼吸的有效抑制剂。macrolides1和2抑制线粒体功能类似于寡霉素A和apoptolidin A,寡霉素A和apoptolidin A是哺乳动物ATP合成酶(复合物V)的选择性抑制剂。1抑制分离线粒体的ATP合成酶活性,并在HeLa细胞中触发caspase依赖性凋亡,HeLa细胞在糖酵解抑制剂2-脱氧葡萄糖存在时对1的抑制更敏感。因此,扁桃醛的细胞毒性取决于基础代谢表型;具有氧化表型的细胞最有可能被扁桃醛类药物抑制。
Mandelalides A–D (1–4) are macrocyclic polyketides known to have an unusual bioactivity profile influenced by compound glycosylation and growth phase of cultured cells. The isolation and characterization of additional natural congeners, mandelalides E–L (5–12), and the supply of synthetic compounds1and12, as well asseco-mandelalide A methyl ester (13), have now facilitated mechanism of action and structure–activity relationship studies. Glycosylated mandelalides are effective inhibitors of aerobic respiration in living cells. Macrolides1and2inhibit mitochondrial function similar to oligomycin A and apoptolidin A, selective inhibitors of the mammalian ATP synthase (complex V).1inhibits ATP synthase activity from isolated mitochondria and triggers caspase-dependent apoptosis in HeLa cells, which are more sensitive to inhibition by1in the presence of the glycolysis inhibitor 2-deoxyglucose. Thus, mandelalide cytotoxicity depends on basal metabolic phenotype; cells with an oxidative phenotype are most likely to be inhibited by the mandelalides.
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