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Alt a 1 Promotes Allergic Asthma Through TLR4-Alveolar Macrophages. | LitMetric

Alt a 1 Promotes Allergic Asthma Through TLR4-Alveolar Macrophages.

Front Immunol

Centre for Plant Biotechnology and Genomics Universidad Politécnica de Madrid, Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria, Consejo Superior de Investigaciones Cientificas (UPM -INIA/CSIC), Universidad Politécnica de Madrid, Madrid, Spain.

Published: July 2022

AI Article Synopsis

Article Abstract

The mold is one of the main sources of asthma exacerbation, being its major allergen, Alt a 1, indispensable for its development. The main objective of this work was to answer two main questions: 1) can Alt a 1 by itself (without any other context) induce an asthmatic profile ?; and 2) Which molecular mechanisms take place during this phenomenon? To answer both questions, we have developed a mouse model of allergic asthma using only Alt a 1 for mice sensitization. We also made use of cellular models and computational studies to support some aspects of our hypothesis. Our results showed that Alt a 1 can induce an asthmatic phenotype, promoting tissue remodeling and infiltration of CD45+ cells, especially eosinophils and macrophages (Siglec F+ and F4/80+). Also, we have found that Alt a 1 sensitization is mediated by the TLR4-macrophage axis.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9280186PMC
http://dx.doi.org/10.3389/fimmu.2022.877383DOI Listing

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