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首页> 外文期刊>Cellular immunology >Roxithromycin inhibits compound 48/80-induced pseudo-allergy via the MrgprX2 pathway both in vitro and in vivo
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Roxithromycin inhibits compound 48/80-induced pseudo-allergy via the MrgprX2 pathway both in vitro and in vivo

机译:罗西霉素在体外和体内通过MRGPRX2途径抑制化合物48 / 80-诱导的伪过敏。

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摘要

Roxithromycin (ROX) is a macrolide antibiotic with a variety of immunological effects. Mast cells (MCs) play a key role in host defense, mediating hypersensitivity and pseudo-allergic reactions. Mas-related G protein-coupled receptor X2 (MrgprX2) is the main receptor related to pseudo-allergy. In this study, we investigated the antipseudo-allergy effect of ROX and its underlying mechanism. The effects of ROX on passive cutaneous anaphylaxis (PCA) and active systemic allergy were examined, degranulation, Ca2+ influx, and cytokine release were studied in vivo and in vitro. Interactions between ROX and MrgprX2 protein were also detected through surface plasmon resonance. The PCA and active systemic allergy induced by compound 48/80 were inhibited by ROX. An intermolecular interaction was detected between the ROX and MrgprX2 protein. In conclusion, ROX could inhibit pseudo-allergic reactions, and this effect involves the Ca2+/PLC/IP3 pathway of MrgprX2. This study provides new insight into the anti-pseudo-allergy effects of ROX.
机译:罗红霉素(ROX)是一种大环内酯类抗生素,具有多种免疫作用。肥大细胞(MC)在宿主防御、介导超敏反应和假过敏反应中起着关键作用。Mas相关G蛋白偶联受体X2(MrgprX2)是与假性变态反应相关的主要受体。在本研究中,我们研究了ROX的抗假性变态反应作用及其潜在机制。研究了ROX对被动皮肤过敏反应(PCA)和主动全身过敏反应的影响,并在体内和体外研究了脱颗粒、Ca2+内流和细胞因子释放。还通过表面等离子体共振检测了ROX和MrgprX2蛋白之间的相互作用。ROX可抑制化合物48/80诱导的PCA和活动性全身过敏反应。检测到ROX和MrgprX2蛋白之间存在分子间相互作用。总之,ROX可以抑制假性过敏反应,这种作用涉及MrgprX2的Ca2+/PLC/IP3通路。这项研究为ROX的抗假性过敏作用提供了新的见解。

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