Mechanisms of tolerance and allergic sensitization in the airways and the lungs.

Mechanisms of tolerance and allergic sensitization in the airways and the lungs.
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DOI:
10.1016/j.coi.2010.08.014
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发表时间:
2010-10
影响因子:
7
通讯作者:
Graça L
Graça L
中科院分区:
医学2区
文献类型:
--
作者:
Curotto de Lafaille MA;Lafaille JJ;Graça L

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呼吸道粘膜经常暴露于可能引发炎症的非感染性物质。虽然许多颗粒被排除在外,但可溶性分子可以到达上皮表面,在那里它们可以被树突细胞摄取并刺激适应性免疫应答。大多数粘膜应答导致对随后的抗原遭遇的耐受,这是由Foxp3+调节性T细胞介导的。遗传和环境因素,加上某些过敏原诱导先天性反应的能力,可以使人易患过敏性致敏。在这篇综述中,我们讨论了最近的进展,了解的耐受性和过敏性致敏的机制,空气中的过敏原。
The respiratory mucosa is constantly exposed to non-infectious substances that have the potential of triggering inflammation. While many particles are excluded, soluble molecules can reach the epithelium surface, where they can be uptaken by dendritic cells and stimulate an adaptive immune response. Most mucosal responses result in tolerance to subsequent antigen encounters, which is mediated by Foxp3+ regulatory Tcells. Genetic and environmental factors, added to the ability of certain allergens to induce innate responses, can predispose to allergic sensitization. In this review we discuss recent advances in the understanding of the mechanisms of tolerance and allergic sensitization to airborne allergens.
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