图西拉贡抑制MRGPRX2介导的杆细胞脱粒化,并抑制伪过敏反应
Pingping Yan1, Tingting Huang2, Mawusse K I Attiogbe2
1Department of Pharmacology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi 710061, China; Department of Pharmacy, Xi'an Children's Hospital, Xi'an Jiaotong University, Xi'an 710003, China.
Toxicology and applied pharmacology
|February 18, 2026
概括
图西拉 (Tus) 通过抑制巨细胞激活和下游信号通路,有效地抑制伪过敏反应. 这种天然化合物显示出治疗诸如伪过敏等疾病的治疗潜力.
科学领域:
- 药理学 药理学是指药理学的学科.
- 免疫学 免疫学 免疫学
- 自然产品 自然产品
背景情况:
- 与Mas相关的G蛋白结合受体X2 (MRGPRX2) 与伪过敏反应有关.
- 来自Tussilago farfara的Tussilagone (Tus) 具有抗炎性质,但其在伪过敏中的作用尚不清楚.
研究的目的:
- 为了研究图西拉 (Tus) 对伪过敏反应的抑制作用.
- 阐明Tus作用的潜在分子机制.
主要方法:
- 使用系统性伪过敏和被动皮肤过敏反应 (PCA) 模型的体内研究.
- 在体外分析瘤细胞脱粒化,细胞因子释放 (TNF-α,IL-8,MCP-1) 和信号通路 (Lyn/Btk,p38 MAPK,NF-κB).
- 评估MRGPRX2表达细胞中的 (Ca2+) 流入.
主要成果:
- 图斯在体内显著降低了伪过敏反应和PCA.
- 它抑制了巨细胞降粒和炎症性细胞因子的产生.
- 图斯抑制了Ca2+流入和下游信号分子,包括Lyn,Btk,PLCγ1,p38 MAPK和NF-κB.
结论:
- 图西拉贡通过准MRGPRX2-介导的瘤细胞激活来减轻伪过敏反应.
- 图斯调节关键信号通路 (Lyn/Btk/PLCγ1和p38/NF-κB),证明了伪过敏的治疗潜力.
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