Structure-based drug design, synthesis and biological assays of P. falciparum Atg3–Atg8 protein–protein interaction inhibitors
作者:Stefania Villa、Laura Legnani、Diego Colombo、Arianna Gelain、Carmen Lammi、Daniele Bongiorno、Denise P. Ilboudo、Kellen E. McGee、Jürgen Bosch、Giovanni Grazioso
DOI:10.1007/s10822-018-0102-5
日期:2018.3
The proteins involved in the autophagy (Atg) pathway have recently been considered promising targets for the development of new antimalarial drugs. In particular, inhibitors of the protein–protein interaction (PPI) between Atg3 and Atg8 of Plasmodium falciparum retarded the blood- and liver-stages of parasite growth. In this paper, we used computational techniques to design a new class of peptidomimetics mimicking the Atg3 interaction motif, which were then synthesized by click-chemistry. Surface plasmon resonance has been employed to measure the ability of these compounds to inhibit the Atg3–Atg8 reciprocal protein–protein interaction. Moreover, P. falciparum growth inhibition in red blood cell cultures was evaluated as well as the cyto-toxicity of the compounds.
近年来,参与自噬(Atg)途径的蛋白质被认为是开发新型抗疟药物的有前景的目标。特别是,抑制恶性疟原虫Atg3与Atg8之间的蛋白质-蛋白质相互作用(PPI)减缓了寄生虫在血液和肝脏阶段的增长。在本论文中,我们利用计算技术设计了一种新的模拟Atg3相互作用基序的肽模拟物类,然后通过点击化学合成这些模拟物。我们采用表面等离子共振技术来测量这些化合物抑制Atg3与Atg8之间的互惠蛋白质-蛋白质相互作用的能力。此外,我们还评估了这些化合物在红细胞培养中对恶性疟原虫生长的抑制作用以及它们的细胞毒性。