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Early-life EV-A71 infection augments allergen-induced airway inflammation in asthma through trained macrophage immunity

引用

Cellular & Molecular Immunology 2021年第2期18卷 472-483页

作者： Pei-Chi Chen Yu-Ting Shao Miao-Hsi Hsieh Hui-Fang Kao Wen-Shuo Kuo Shih-Min Wang Shun-Hua Chen Lawrence Shih Hsin Wu Hui-Ju Tsai Jiu-Yao Wang Institute of Basic Medical Sciences College of MedicineNational Cheng Kung UniversityTainanTaiwanChina Department of Microbiology and Immunology College of MedicineNational Cheng Kung UniversityTainanTaiwanChina Center for Allergy and Clinical Immunology Research College of MedicineNational Cheng Kung UniversityTainanTaiwanChina Department of Nursing National Tainan Junior College of NursingTainanTaiwanChina School of Chemistry and Materials Science Nanjing University of Information Science and TechnologyNanjingChina Department of Pediatrics National Cheng Kung University HospitalTainanTaiwanChina Graduate Institute of Biomedical Sciences China Medical UniversityTaichungTaiwanChina Division of Biostatistics and Bioinformatics Institute of Population Health SciencesNational Health Research InstitutesZhunanTaiwanChina Department of Pediatrics National Cheng Kung University HospitalNo139Sheng-Li RoadTainan 70428 TaiwanChina

Virus-induced asthma is prevalent among children,but its underlying mechanisms are unclear.Accumulated evidence indicates that early-life respiratory virus infection increases susceptibility to allergic asthma.Nonetheless,the relationship between systemic virus infections,such as enterovirus infection,and the ensuing effects on allergic asthma development is unknown.Early-life enterovirus infection was correlated with higher risks of allergic diseases in children.Adult mice exhibited exacerbated mite allergen-induced airway inflammation following recovery from EV-A71 infection in the neonatal period.Bone marrow-derived macrophages(BMDMs)from recovered EV-A71-infected mice showed sustained innate immune memory(trained immunity)that could drive naïve T helper cells toward Th2 and Th17 cell differentiation when in contact with mites.Adoptive transfer of EV-A71-trained BMDMs induced augmented allergic inflammation in naïve recipient mice,which was inhibited by 2-deoxy-D-glucose(2-DG)pretreatment,suggesting that trained macrophages following enterovirus infection are crucial in the progression of allergic asthma later in life.

关键词： trained immunity allergy asthma

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