Discovery of Nanomolar Desmuramylpeptide Agonists of the Innate Immune Receptor Nucleotide-Binding Oligomerization Domain-Containing Protein 2 (NOD2) Possessing Immunostimulatory Properties
作者:Martina Gobec、Tihomir Tomašič、Adela Štimac、Ruža Frkanec、Jurij Trontelj、Marko Anderluh、Irena Mlinarič-Raščan、Žiga Jakopin
DOI:10.1021/acs.jmedchem.7b01052
日期:2018.4.12
need for novel adjuvants, and NOD2 agonists provide an untapped source of potential candidates. Here, we report the design, synthesis, and characterization of a series of novel acyl tripeptides. A pivotal structural element for molecular recognition by NOD2 has been identified, culminating in the discovery of compound 9, the most potent desmuramylpeptide NOD2 agonist to date. Compound 9 augmented pro-inflammatory
一直以来,细菌肽聚糖的一个片段,即Muramyl二肽(MDP),由于其对含有核苷酸结合的寡聚化域的蛋白质2(NOD2)的激动作用,一直被认为是具有佐剂活性的最小片段。迫切需要新型佐剂,而NOD2激动剂提供了尚未开发的潜在候选物。在这里,我们报告一系列新型酰基三肽的设计,合成和表征。已经确定了用于NOD2分子识别的关键结构元素,最终发现了化合物9(迄今为止最有效的去muramylpeptide NOD2激动剂)。化合物9与脂多糖协同作用,增加了人类外周血单核细胞促炎细胞因子的释放。此外,它能够在佐剂小鼠模型中诱导卵清蛋白特异性IgG滴度。这些发现为desmuramylpeptides的结构需求提供了更深入的见解,以激活NOD2,并突出了NOD2激动剂作为疫苗佐剂的潜在用途。