TY - JOUR T1 -骨膜蛋白:哮喘气道上皮功能异常的原因?摩根富林明-欧洲呼吸杂志》乔和J - 10.1183/13993003.01286 -2020欧元六世- 57 - 2 SP - 2001286 AU -伯吉斯,珍妮k . AU - Jonker Marnix r . AU - Berg Marijn盟——十Hacken,尼克T.H. AU -迈耶,Kerstin b . AU - van den Berge Maarten盟,Nawijn卡坦c . AU - HeijinkIrene H. Y1 - 2021/02/01 UR - //www.qdcxjkg.com/content/57/2/2001286.abstract N2 - Periostin (POSTN)可能作为哮喘2型介导的嗜酸性气道炎症的生物标志物。我们假设,一种2型细胞因子,白介素(IL)-13,诱导气道上皮细胞POSTN的表达,这反过来有助于哮喘中观察到的上皮细胞变化。我们研究了IL-13对BEAS-2B和气液界面分化的原发性支气管上皮细胞(PBECs)中POSTN表达的影响。此外,我们还评估了重组人POSTN对上皮-间质转化(EMT)标记物和粘蛋白基因的影响。在哮喘患者和健康对照组的支气管活检和诱导痰中分析POSTN单细胞基因表达和蛋白水平。IL-13在两种细胞类型中均增加了POSTN的表达,并且在BEAS-2B中伴有emt相关的特征。在气液界面分化的PBECs中,IL-13增加了基底外侧和根尖后n释放。在根尖给药后,MMP-9、MUC5B和MUC5AC的表达增加。在支气管活检中,POSTN表达主要局限于基底上皮细胞、离子细胞、内皮细胞和成纤维细胞,哮喘患者的基底上皮细胞表达高于对照组。与健康对照组相比,哮喘患者的支气管活检证实其上皮和上皮下层的POSTN蛋白表达水平较高。 Although sputum POSTN levels were not higher in asthma, levels correlated with eosinophil numbers and with the coughing-up of mucus.POSTN expression is increased by IL-13 in bronchial epithelial cells and is higher in bronchial biopsies from asthma patients. This may have important consequences, as administration of POSTN increases epithelial expression of mucin genes, supporting the relationship of POSTN with Type-2 mediated asthma and mucus secretion.High levels of IL-13 in Type-2 driven asthma play a crucial role in the development of the abnormal epithelial phenotype by induction of periostin (POSTN) secretion. POSTN induces mucin production in airway epithelial cells. https://bit.ly/3hg7ETu ER -