ABSTRACT
Although the parasitic infection Chagas' disease was described over 100 years ago, even now there are not suitable drugs. The available drugs nifurtimox and benznidazole have limited efficacies and tolerances, with proven mutagenic effects. Attempting to find appropriate drugs to deal with this problem, here we report on the development and pharmacological characterization of new amide-containing thiazoles. In the present study, we evaluated the
in vitro
and
in vivo
effects of new candidates against
Trypanosoma cruzi
, the etiological agent of Chagas' disease. The lead amide-containing thiazole derivative had potent
in vitro
activity, an absence of both
in vitro
mutagenic and
in vivo
clastogenic effects, and excellent
in vitro
selectivity and
in vivo
tolerance. The compound suppressed parasitemia in mice, modifying the anti-
T. cruzi
antibodies like the reference drug, benznidazole, and displayed the lowest mortality among the tested drugs. The present evidence suggests that this compound is a promising anti-
T. cruzi
agent surpassing the lead optimization stage in drug development and leading to a candidate for preclinical study.
摘要
尽管南美锥虫病早在 100 多年前就被描述出来,但至今仍没有合适的药物。现有药物硝呋太醇和苯并咪唑的疗效和耐受性有限,而且已证实具有诱变作用。为了找到合适的药物来解决这一问题,我们在此报告了新的含酰胺噻唑类药物的开发和药理学特征。在本研究中,我们评估了
体外
和
体内
新候选化合物对
克鲁斯锥虫
的体外和体内作用。含酰胺的噻唑先导衍生物具有强效的
体外
活性
体外
致突变性和
体内
体外活性,既无体外致突变效应,也无体内致克隆效应
体外
选择性和
体内
耐受性。该化合物抑制了小鼠的寄生虫血症,改变了抗
克鲁斯绦虫
抗体,而且在所有测试药物中死亡率最低。目前的证据表明,该化合物是一种很有前景的抗
克鲁斯
该化合物是一种很有前途的抗克鲁斯绦虫药物,它已超越了药物开发的先导优化阶段,成为临床前研究的候选药物。