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过敏性哮喘患者存在呼吸道上皮屏障功能的破坏，吸入性过敏原对呼吸道上皮屏障存在破坏作用，气道屏障相关基因突变及表观修饰也参与气道上皮屏障的破坏。许多研究认为上皮屏障功能破坏为哮喘发病的基础。研究过敏性哮喘与呼吸道上皮屏障之间的关系有助于了解过敏性哮喘的发病机制，并为治疗提供新思路。“,”Airway epithelial barrier dysfunction has been observed in allergic asthma patients.Inhaled allergens have shown a disruptive effect on the airway epithelial barrier.Airway barrier related genetic variation and epigenetics are also involved in the airway epithelial barrier dysfunction.A lot of studies believe that airway epithelial barrier dysfunction underlie the development of asthma.The study of the relationship between allergic asthma and airway epithelial barrier function will be helpful to understand the pathogenesis of allergic asthma and provide new ideas for the treatment of allergic asthma.