"Coriolan Dragulescu" Institute of Chemistry, 24 M. Viteazu Ave, 300223 Timisoara, Romania.
Molecules. 2022 Jun 15;27(12):3846. doi: 10.3390/molecules27123846.
Vector-borne infectious diseases are responsible for the deaths of over 700,000 people annually, than 400,000 of them resulting from malaria. The mosquito is one of the dominant vector species of human malaria transmission. A significant issue of the conventional insecticides which target the arthropod borne infectious diseases is their induced resistance. To overcome this inconvenience, insecticides with new modes of action are required. One of the most promising targets for the development of new potential insecticides as evidenced by current studies is the D1-like dopamine receptor (DAR). To get a deeper understanding of the structural information of this receptor, the 3D homology model was built. The possible sites within the protein were identified and the most probable binding site was highlighted. The homology model along with a series of DAR antagonists with known activity against larvae were used in docking experiments to gain insight into their intermolecular interactions. Furthermore, virtual screening of the natural compounds from the SPECS database led to the prediction of toxicity and environmental hazards for one potential new insecticide against the mosquito.
每年有超过 70 万人死于虫媒传染病,其中超过 40 万人死于疟疾。蚊子是人类疟疾传播的主要媒介之一。传统杀虫剂针对节肢动物传播的传染病的一个主要问题是它们的诱导抗性。为了克服这一不便,需要具有新作用模式的杀虫剂。目前的研究表明,D1 样多巴胺受体 (DAR) 是开发新潜在杀虫剂最有希望的靶标之一。为了更深入地了解该受体的结构信息,构建了 3D 同源模型。鉴定了蛋白质内的可能结合位点,并突出显示了最可能的结合位点。该同源模型与一系列对幼虫具有已知活性的 DAR 拮抗剂一起用于对接实验,以深入了解它们的分子间相互作用。此外,对 SPECS 数据库中的天然化合物进行虚拟筛选,预测了一种针对 蚊子的潜在新杀虫剂的毒性和环境危害。