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S1PR2-miR-212反循环调节过敏反应
Jaewhoon Jeoung1, Hyein Jo1, Wonho Kim1
1Department of Biochemistry, Kangwon National University, Chuncheon 24341, South Korea.
氨酸-1-酸盐受体2 (S1PR2) 在过敏反应中起着关键作用. 在S1PR2和miR-212之间的负反循环调节了这些体外和体内免疫反应.
科学领域:
- 免疫学 免疫学 免疫学
- 分子生物学分子生物学
- 药理学 药理学是指药理学的学科.
背景情况:
- 洛卡格拉米德-A (roc-A) 具有抗过敏作用.
- 分子对接建议roc-A与基-1-酸盐受体2 (S1PR2) 相结合.
- 这表明S1PR2在过敏反应中的潜在作用.
研究的目的:
- 研究S1PR2在过敏反应中的作用.
- 阐明涉及S1PR2和microRNA-212 (miR-212) 的调节机制.
主要方法:
- 使用大鼠基白血病 (RBL2H3) 细胞和被动系统性过敏反应 (PSA) 和被动皮肤性过敏反应 (PCA) 的动物模型.
- 通过西方抹黑和RT-qPCR评估S1PR2和CXCL1的表达.
- 进行了分子对接,化酶测定和miR-212模仿转染.
主要成果:
- 抗原刺激增加了RBL2H3细胞中S1PR2的表达;S1P也独立于抗原上调S1PR2.
- 在体外过敏反应和体内过敏反应中,S1PR2是必不可少的.
- 斯芬戈辛抑制了抗原诱导的S1PR2上调和过敏特征,包括反应性氧物种 (ROS) 生产.
- 在PSA期间CXCL1表达增加,调解过敏反应.
- 目标扫描预测miR-212与S1PR2 3′ UTR结合;miR-212模仿转染抑制了S1PR2和PCA.
- 降低S1PR2调节在抗原刺激细胞中增加了miR-212,这表明了负反循环.
结论:
- S1PR2是过敏反应的关键媒介.
- 在S1PR2和miR-212之间的负反循环调节过敏反应.
- 这个S1PR2-miR-212轴代表了对过敏性疾病的潜在治疗目标.
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