Centro de Biología Celular y Molecular de Enfermedades, Instituto de Investigaciones Científicas y Servicios de Alta Tecnología (INDICASAT AIP), Edificio 208, Ciudad del Saber, Apartado 0843-01103, Panama, 0801, Panama; Department of Biotechnology, Acharya Nagarjuna University, Nagarjuna Nagar, Guntur, Andhra Pradesh, 522510, India.
Escuela de Biología, Facultad de Ciencias Naturales, Exactas y Tecnología, Universidad de Panamá. Panama, 0801, Panama.
Int J Parasitol Drugs Drug Resist. 2020 Dec;14:56-61. doi: 10.1016/j.ijpddr.2020.08.002. Epub 2020 Aug 15.
Leishmania panamensis is a relevant causative agent of tegumentary leishmaniasis in several Latin American countries. Available antileishmanial drugs have several limitations including relatively high toxicity, difficult administration, high production costs and the emergence of resistance in circulating strains. Therefore, the identification of new molecules as potential therapeutics for leishmaniasis is of great relevance. Here, we developed a murine model of L. panamensis infection and evaluated the effect of a new compound in vivo. After treatment of animals with the compound, we observed a significant reduction of inflammation and parasite load at the inoculation site, in a dose-dependent manner. We observed a reduction in IL-10 production by popliteal lymph nodes cells of infected mice. These results pave the way for future evaluation of this compound as a potential antileishmanial drug or as a suitable scaffold for lead optimization strategies.
巴拿马利什曼原虫是拉丁美洲多个国家皮肤利什曼病的重要病原体。现有的抗利什曼原虫药物存在多种局限性,包括毒性相对较高、给药困难、生产成本高以及循环菌株出现耐药性等。因此,鉴定新的分子作为治疗利什曼病的潜在药物具有重要意义。在这里,我们建立了一种巴拿马利什曼原虫感染的小鼠模型,并在体内评估了一种新化合物的效果。用该化合物处理动物后,我们观察到炎症和接种部位寄生虫负荷呈剂量依赖性显著减少。我们观察到感染小鼠的后肢淋巴结细胞中白细胞介素 10 的产生减少。这些结果为进一步评估该化合物作为一种潜在的抗利什曼原虫药物或作为一种合适的先导优化策略的支架奠定了基础。