NLRP3 inflammasome has recently attracted much attention as a potentially druggable target to develop potential therapeutics for inflammatory and neurodegenerative disorders. In our continuing studies, structure–activity relationship studies were conducted based on a newly identified NLRP3 inhibitor, YQ-II-128, from our laboratory to understand the structural features and improve aqueous solubility. The results revealed that steric interactions at the propoxyl and amide domain of YQ-II-128 are important for the observed inhibitory potency on the NLRP3 inflammasome. The results also identified the amide domain to incorporate polar moieties to improve solubility and potentially pharmacokinetic properties. As a result, analog 10 was identified as a selective NLRP3 inhibitor with comparable potency while significantly improved aqueous solubility. Collectively, these findings strongly encourage further optmization of 10 to develop analogs with improved pharmacokinetic properties as potential NLRP3-targted therapeutics.

NLRP3炎性小体作为一种潜在的可治疗靶标，最近已引起人们的广泛关注，以开发针对炎症和神经退行性疾病的潜在疗法。在我们的继续研究中，结构与活性之间的关系研究是基于我们实验室新鉴定的NLRP3抑制剂YQ-II-128进行的，以了解其结构特征并改善水溶性。结果表明，YQ-II-128的丙氧基和酰胺结构域的空间相互作用对于观察到的对NLRP3炎性小体的抑制能力很重要。该结果还确定了酰胺结构域结合了极性部分以改善溶解度和潜在的药代动力学性质。结果，模拟量10被鉴定为具有相当效力的选择性NLRP3抑制剂，同时显着改善了水溶性。总的来说，这些发现强烈鼓励进一步优化10种药物以开发具有改善的药代动力学特性的类似物，作为潜在的NLRP3靶向治疗剂。