Proteomics Research Center, Faculty of Paramedical Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
Proteomics Research Center, Faculty of Paramedical Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
Comp Immunol Microbiol Infect Dis. 2021 Apr;75:101617. doi: 10.1016/j.cimid.2021.101617. Epub 2021 Jan 27.
Cutaneous leishmaniasis (CL) is an infectious disease that commonly caused by Leishmania (L.) major and L.tropica. Recently there has been a growing interest in proteomics analysis on Leishmania for drug target discovery. Therefore, we aimed to distinguish proteins which might be characteristic for each of the species from those shared by both to the detection of drug targets, which may become helpful for designing new drugs for CL. To identify differences in protein profiles of L. major and L. tropica, we conducted a Sequential window acquisition of all theoretical fragment ion spectra mass spectrometry (SWATH-MS) analysis. Totally 67 differentially expressed proteins (DEPs) (fold change> 2 and p < 0.05) were identified between species. Of these, 42 and 25 proteins were up-regulated in L. major and L. tropica, respectively. Several enriched GO terms were identified via biological process of up-regulated proteins. Furthermore, the small molecule metabolic process and translation were detected as significant biological processes for up-regulated proteins in L. major, while translation was identified for L. tropica. Also, KEGG analysis has revealed glycolysis/gluconeogenesis and translation as the top pathways in the proteins up-regulated in L. major and L. tropica, respectively. Finally glycosomal malate dehydrogenase was identified as putative drug target using network and homology analyses. The DEPs between the species are essential in host-pathogen interactions and parasite survival in the macrophage. Furthermore, L. major and L. tropica possibly uses different pathogenicity mechanisms that leads to anthroponotic or zoonotic CL. Our results may help in the drug discovery and chemotherapeutic interventions.
皮肤利什曼病(CL)是一种传染病,通常由利什曼原虫(L.)major 和 L.tropica 引起。最近,人们对利什曼原虫的蛋白质组学分析越来越感兴趣,以发现药物靶点。因此,我们旨在从物种之间共享的蛋白质中区分出可能对每种物种都具有特征的蛋白质,以检测药物靶点,这可能有助于为 CL 设计新药。为了识别 L. major 和 L. tropica 蛋白质图谱的差异,我们进行了连续窗口获取所有理论片段离子谱质谱(SWATH-MS)分析。在物种之间共鉴定出 67 个差异表达蛋白(DEPs)(倍数变化> 2,p < 0.05)。其中,L. major 和 L. tropica 分别上调了 42 种和 25 种蛋白质。通过上调蛋白的生物过程鉴定了几个富集的 GO 术语。此外,小分子代谢过程和翻译被检测为 L. major 上调蛋白的显著生物学过程,而翻译被鉴定为 L. tropica。KEGG 分析还揭示了糖酵解/糖异生和翻译分别是 L. major 和 L. tropica 上调蛋白的主要途径。最后,使用网络和同源性分析鉴定出糖质体苹果酸脱氢酶为潜在的药物靶点。物种之间的差异表达蛋白在宿主-病原体相互作用和寄生虫在巨噬细胞中的生存中至关重要。此外,L. major 和 L. tropica 可能使用不同的致病性机制导致人源或动物源 CL。我们的研究结果可能有助于药物发现和化学治疗干预。