Zhuang Xiangli, Wu Bo, Qiu Caixia, Ai Si, Zheng Jian
Academy of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou 350122, China.
Second People's Hospital, Affiliated to Fujian University of Traditional Chinese Medicine, Fuzhou 350003, China.
Evid Based Complement Alternat Med. 2021 Mar 20;2021:6686815. doi: 10.1155/2021/6686815. eCollection 2021.
Fyn-STAT5 is considered to be the frontier signaling pathway of IgE-mediated allergic reactions related to mast cell activation, but research on allergic rhinitis (AR) has been rarely reported. Xingbi gel nasal drops (XGND) are a compound preparation of traditional Chinese medicine, which has the exact therapeutic efficacy on AR. The current study aimed to observe the effects of XGND on Fyn-STAT5 pathway in AR guinea pig nasal mucosal fibroblasts and further illuminate the possible therapeutic mechanism of XGND on AR. The isolated and cultured nasal mucosa fibroblasts from AR guinea pigs were identified by immunocytochemical staining. Real-time PCR and western blot were performed to detect the mRNA and protein levels of the Fyn-STAT5 pathway and related cytokines in AR guinea pig nasal mucosal fibroblasts. The results indicated that XGND may interfere with the Fyn-STAT5 pathway by reducing the expression of Fyn and SCF and upregulating STAT5 and IL-10, thereby inhibiting proliferation and degranulation of mast cells, correcting Th1/Th2 immune imbalance, and then alleviating the immune response of AR fibroblasts. Our study revealed the possible regulatory mechanism of XGND in AR and laid an experimental foundation for improving the clinical efficacy of AR and enriching the clinical medication for AR.
Fyn-STAT5被认为是与肥大细胞活化相关的IgE介导的过敏反应的前沿信号通路,但关于变应性鼻炎(AR)的研究报道很少。辛荜滴鼻凝胶(XGND)是一种中药复方制剂,对AR具有确切的治疗效果。本研究旨在观察XGND对AR豚鼠鼻黏膜成纤维细胞中Fyn-STAT5通路的影响,并进一步阐明XGND对AR的可能治疗机制。采用免疫细胞化学染色法对从AR豚鼠中分离培养的鼻黏膜成纤维细胞进行鉴定。运用实时荧光定量PCR和蛋白质印迹法检测AR豚鼠鼻黏膜成纤维细胞中Fyn-STAT5通路及相关细胞因子的mRNA和蛋白水平。结果表明,XGND可能通过降低Fyn和SCF的表达,上调STAT5和IL-10来干扰Fyn-STAT5通路,从而抑制肥大细胞的增殖和脱颗粒,纠正Th1/Th2免疫失衡,进而减轻AR成纤维细胞的免疫反应。我们的研究揭示了XGND在AR中的可能调控机制,为提高AR的临床疗效和丰富AR的临床用药奠定了实验基础。