Laboratory of Molecular & Evolutionary Parasitology, RAPID group, School of Biosciences, University of Kent, Canterbury CT2 7NJ, United Kingdom.
Facultad de Farmacia y Nutrición, Departamento de Tecnología y Química Farmacéuticas, Universidad de Navarra, Irunlarrea, 1, E-31008 Pamplona, Spain.
ACS Infect Dis. 2021 Jun 11;7(6):1727-1738. doi: 10.1021/acsinfecdis.1c00048. Epub 2021 Apr 19.
Chagas disease is a tropical infection caused by the protozoan parasite and a global public health concern. It is a paradigmatic example of a chronic disease without an effective treatment. Current treatments targeting are limited to two obsolete nitroheterocyclic drugs, benznidazole and nifurtimox, which lead to serious drawbacks. Hence, new, more effective, safer, and affordable drugs are urgently needed. Selenium and their derivatives have emerged as an interesting strategy for the treatment of different prozotoan diseases, such as African trypanosomiasis, leishmaniasis, and malaria. In the case of Chagas disease, diverse selenium scaffolds have been reported with antichagasic activity and . On the basis of these premises, we describe the and trypanocidal activity of 41 selenocompounds against the three morphological forms of different strains. For the most active selenocompounds, their effect on the metabolic and mitochondrial levels and superoxide dismutase enzyme inhibition capacity were measured in order to determine the possible mechanism of action. Derivative , with a selenocyanate motif, fulfills the most stringent requirements for potential antichagasic agents and exhibits a better profile than benznidazole . This finding provides a step forward for the development of a new antichagasic agent.
克氏锥虫病是一种由原生动物寄生虫引起的热带感染病,是全球公共卫生关注的问题。它是一种没有有效治疗方法的慢性疾病的典型代表。目前针对克氏锥虫的治疗方法仅限于两种过时的硝基杂环药物,苯并咪唑和硝呋替莫,它们存在严重的缺陷。因此,迫切需要新的、更有效、更安全和更经济实惠的药物。硒及其衍生物已成为治疗不同原生动物疾病的一种有趣策略,如非洲锥虫病、利什曼病和疟疾。在克氏锥虫病的情况下,已经报道了多种具有抗克氏锥虫活性的硒支架。基于这些前提,我们描述了 41 种硒化合物对不同 株三种形态的变形虫的抗变形虫活性和细胞毒性。对于最活跃的硒化合物,我们测量了它们对代谢和线粒体水平以及超氧化物歧化酶抑制能力的影响,以确定可能的作用机制。具有硒氰酸酯基序的衍生物 满足了潜在抗克氏锥虫药物的最严格要求,并表现出比苯并咪唑更好的特性。这一发现为开发新的抗克氏锥虫药物迈出了一步。