The antimalarial natural product symplostatin 4 is a nanomolar inhibitor of the food vacuole falcipains.

The antimalarial natural product symplostatin 4 is a nanomolar inhibitor of the food vacuole falcipains.
复制标题

DOI:
10.1016/j.chembiol.2012.09.020
复制
发表时间:
2012-12-21
影响因子:
--
通讯作者:
Kaiser M
Kaiser M
中科院分区:
生物1区
文献类型:
--
作者:
Stolze SC;Deu E;Kaschani F;Li N;Florea BI;Richau KH;Colby T;van der Hoorn RA;Overkleeft HS;Bogyo M;Kaiser M

文献摘要

参考文献

被引文献

相似文献

海洋天然产物Symplostatin 4(Sym4)已被认为是一种有效的抗疟疾剂。然而,其行动方式,特别是其直接目标,迄今为止仍然难以捉摸。我们报告了Sym4的化学合成,并表明Sym4治疗恶性疟原虫感染的红细胞(RBC)导致产生肿胀的食物空泡表型和减少寄生虫血症在纳摩尔浓度。我们进一步证明,Sym4是感染的红细胞中恶性疟原虫恶性蛋白酶的纳摩尔抑制剂,表明抑制血红蛋白降解途径是Sym4的作用模式。最后,我们揭示了一个关键的影响,不寻常的甲基甲氧基吡咯啉酮(MMP)组的Sym4有效的抑制,表明Sym4衍生物与这样的MMP部分可能代表可行的铅结构的发展抗疟疾falcipain抑制剂。
The marine natural product symplostatin 4 (Sym4) has been recognized as a potent antimalarial agent. However, its mode of action and, in particular, direct targets have to date remained elusive. We report a chemical synthesis of Sym4 and show that Sym4-treatment of P. falciparum-infected red blood cells (RBCs) results in the generation of a swollen food vacuole phenotype and a reduction of parasitemia at nanomolar concentrations. We furthermore demonstrate that Sym4 is a nanomolar inhibitor of the P. falciparum falcipains in infected RBCs, suggesting inhibition of the hemoglobin degradation pathway as Sym4’s mode of action. Finally, we reveal a critical influence of the unusual methylmethoxypyrrolinone (mmp) group of Sym4 for potent inhibition, indicating that Sym4 derivatives with such a mmp moiety might represent viable lead structures for the development of antimalarial falcipain inhibitors.
DOI: 10.1073/pnas.0901982106
发表时间: 2009-04-21
影响因子: 11.1
作者:
Clerc, Jerome;Groll, Michael;Kaiser, Markus
通讯作者: Kaiser, Markus
DOI: 10.1016/s1074-5521(00)00014-4
发表时间: 2000-08-01
影响因子: --
作者:
Greenbaum, D;Medzihradszky, KF;Bogyo, M
通讯作者: Bogyo, M
DOI: 10.1073/pnas.1105601108
发表时间: 2011-08-23
影响因子: 11.1
作者:
Harbut, Michael B.;Velmourougane, Geetha;Greenbaum, Doron C.
通讯作者: Greenbaum, Doron C.
DOI: 10.1586/14789450.5.5.721
发表时间: 2008-10
影响因子: 3.4
作者:
Fonović M;Bogyo M
通讯作者: Bogyo M
DOI: 10.1021/ol1024663
发表时间: 2010-12-03
期刊: ORGANIC LETTERS
影响因子: 5.2
作者:
Conroy, Trent;Guo, Jin T.;Payne, Richard J.
通讯作者: Payne, Richard J.