Design, synthesis, and evaluation of substance P analogue with potential anti-pseudoallergic activity
作者:Xiangjun Wang、Jiayu Lu、Ting Zhang、Shuai Ge、Yuexin Lv、Yajing Hou、Xinyue Yang、Cheng Wang、Huaizhen He
DOI:10.1039/d1nj02751d
日期:——
endogenous agonist of the receptor as a competitive inhibitor through structural modifications. Substance P induces mast cell activation through the MRGPRX2. Therefore, we designed and synthesized a new substance P analogue, and a β-hexaminosidase assay and Ca2+ mobilization assay were performed to evaluate the anti-allergic effect of the substance P analogue, while its binding characteristic to MRGPRX2
肥大细胞 (MC) 是可引起过敏反应的先天免疫细胞。假性过敏反应是一种具有过敏临床症状的反应,不涉及免疫 MC 的 IgE 途径。一些研究发现 MRGPRX2 对介导此类过敏反应至关重要,因为一些拮抗剂和激动剂具有相同的结合位点。一个有希望的方向是通过结构修饰使用受体的内源性激动剂作为竞争性抑制剂。物质 P 通过 MRGPRX2 诱导肥大细胞活化。因此,我们设计并合成了一种新的物质P类似物,以及β-己氨基苷酶测定和Ca 2+进行动员试验以评估物质P类似物的抗过敏作用,同时通过分子对接和细胞膜层析分析其与MRGPRX2的结合特性。结果表明,P 物质类似物可能是治疗假性过敏反应的潜在治疗剂。