2010
DOI: 10.1021/ci100128k
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Discovery of New Inhibitors of Schistosoma mansoni PNP by Pharmacophore-Based Virtual Screening

Abstract: Schistosomiasis is considered the second most important tropical parasitic disease, with severe socioeconomic consequences for millions of people worldwide. Schistosoma mansoni , one of the causative agents of human schistosomiasis, is unable to synthesize purine nucleotides de novo, which makes the enzymes of the purine salvage pathway important targets for antischistosomal drug development. In the present work, we describe the development of a pharmacophore model for ligands of S. mansoni purine nucleoside p… Show more

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Cited by 56 publications
(32 citation statements)
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“…In this work, a structure-based pharmacophore model was employed for the virtual screening of a huge library of compounds, leading to the identification of three thioxothiazolidinones derivatives with substantial in vitro inhibitory activity against SmPNP (Fig. 6A) [55]. Convenient synthesis, biochemical evaluation, and SAR studies led to the successful development of a set of thioxothiazolidinone derivatives harboring a novel chemical scaffold as new competitive inhibitors of SmPNP in the low micromolar range.…”
Section: R V C Guido Et Almentioning
confidence: 99%
“…In this work, a structure-based pharmacophore model was employed for the virtual screening of a huge library of compounds, leading to the identification of three thioxothiazolidinones derivatives with substantial in vitro inhibitory activity against SmPNP (Fig. 6A) [55]. Convenient synthesis, biochemical evaluation, and SAR studies led to the successful development of a set of thioxothiazolidinone derivatives harboring a novel chemical scaffold as new competitive inhibitors of SmPNP in the low micromolar range.…”
Section: R V C Guido Et Almentioning
confidence: 99%
“…Diversos exemplos de sucesso da aplicação da SBVS são descritos na literatura, demonstrando sua versatilidade, alto desempenho e grande utilidade em programas de descoberta fármacos. 12,25,45,[71][72][73] É interessante observar a rica variedade de classes químicas identificadas para uma igualmente abastada diversidade de alvos biológicos.…”
Section: Figura 4 Cuidados Na Preparação Do Receptor Para Sbvsunclassified
“…Kinetic measurements were carried out spectrophotometrically with the aid of a Cary100 UV-Vis spectrophotometer, using a standard coupled assay as previously described. 10,[13][14][15][16] The reaction mixture contained 5 nmol L -1 SmPNP (as the monomer), 50 mmol L -1 phosphate buffer (K 3 PO 4 , pH 7.4), 10 µmol L -1 inosine, and xanthine oxidase 40 milliunits mL -1 . Uric acid formation was monitored at 293 nm, in triplicate at 25 o C (extinction coefficient for uric acid, e 293 = 12.9 L mmol -1 cm -1 ).…”
Section: Biochemical Assays and Data Set Compositionmentioning
confidence: 99%