Barazorda-Ccahuana Haruna Luz, Cárcamo-Rodriguez Eymi Gladys, Centeno-Lopez Angela Emperatriz, Galdino Alexsandro Sobreira, Machado-de-Ávila Ricardo Andrez, Giunchetti Rodolfo Cordeiro, Coelho Eduardo Antonio Ferraz, Chávez-Fumagalli Miguel Angel
Computational Biology and Chemistry Research Group, Vicerrectorado de Investigación, Universidad Católica de Santa María, Arequipa 04000, Peru.
Facultad de Ciencias Farmacéuticas, Bioquímicas y Biotecnológicas, Universidad Católica de Santa María, Arequipa 04000, Peru.
Trop Med Infect Dis. 2024 Feb 3;9(2):41. doi: 10.3390/tropicalmed9020041.
Visceral Leishmaniasis (VL) has a high death rate, with 500,000 new cases and 50,000 deaths occurring annually. Despite the development of novel strategies and technologies, there is no adequate treatment for the disease. Therefore, the purpose of this study is to find structural analogs of natural products as potential novel drugs to treat VL. We selected structural analogs from natural products that have shown antileishmanial activities, and that may impede the purine salvage pathway using computer-aided drug-design (CADD) approaches. For these, we started with the vastly studied target in the pathway, the adenine phosphoribosyl transferase (APRT) protein, which alone is non-essential for the survival of the parasite. Keeping this in mind, we search for a substance that can bind to multiple targets throughout the pathway. Computational techniques were used to study the purine salvage pathway from , and molecular dynamic simulations were used to gather information on the interactions between ligands and proteins. Because of its low homology to human proteins and its essential role in the purine salvage pathway proteins network interaction, the findings further highlight the significance of adenylosuccinate lyase protein (ADL) as a therapeutic target. An analog of the alkaloid Skimmianine, N,N-diethyl-4-methoxy-1-benzofuran-6-carboxamide, demonstrated a good binding affinity to APRT and ADL targets, no expected toxicity, and potential for oral route administration. This study indicates that the compound may have antileishmanial activity, which was granted and experiments to settle this finding in the future.
内脏利什曼病(VL)死亡率很高,每年有50万新发病例和5万例死亡。尽管开发了新的策略和技术,但该疾病仍缺乏有效的治疗方法。因此,本研究的目的是寻找天然产物的结构类似物作为治疗VL的潜在新药。我们从具有抗利什曼原虫活性且可能通过计算机辅助药物设计(CADD)方法阻碍嘌呤补救途径的天然产物中选择结构类似物。为此,我们从该途径中经过大量研究的靶点腺嘌呤磷酸核糖转移酶(APRT)蛋白入手,该蛋白本身对寄生虫的存活并非必需。考虑到这一点,我们寻找一种能够与整个途径中的多个靶点结合的物质。使用计算技术研究嘌呤补救途径,并用分子动力学模拟收集配体与蛋白质之间相互作用的信息。由于其与人类蛋白质的同源性较低,且在嘌呤补救途径蛋白质网络相互作用中具有重要作用,研究结果进一步凸显了腺苷酸琥珀酸裂解酶蛋白(ADL)作为治疗靶点的重要性。生物碱Skimmianine的类似物N,N -二乙基-4-甲氧基-1-苯并呋喃-6-甲酰胺对APRT和ADL靶点表现出良好的结合亲和力,无预期毒性,且有口服给药的潜力。本研究表明该化合物可能具有抗利什曼原虫活性,未来将通过 和 实验来确定这一发现。
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