Abstract：
:Allergic asthma is a highly prevalent airway disease triggered by hyperresponsiveness to inhaled allergens. Interferon regulatory factor 7 (IRF7) has been shown to be highly expressed in nasal aspirates from children with asthma. Type 2 innate lymphoid cells (ILC2s) represent the major player in allergic airway inflammation. The role of IRF7 in ILC2-driven asthma remains to be explored. Here, we report that IRF7 expression in murine lung ILC2s is dramatically induced upon papain or interleukin-33 (IL-33) stimulation. ILC2s from asthma patients display a much higher level of IRF7 than those from healthy donors. Deficiency of IRF7 in mice significantly impairs the expansion and function of lung ILC2s in multiple models of allergic asthma. Furthermore, the regulation of ILC2s by IRF7 is cell intrinsic and mediated by the transcription factor Bcl11b. These observations identify IRF7 as a regulator of lung ILC2s, which may have immunotherapeutic value in allergic asthma.
journal_name
Cell Repjournal_title
Cell reportsauthors
He J,Yang Q,Xiao Q,Lei A,Li X,Zhou P,Liu T,Zhang L,Shi K,Yang Q,Dong J,Zhou Jdoi
10.1016/j.celrep.2019.10.077subject
Has Abstractpub_date
2019-11-26 00:00:00pages
2718-2730.e6issue
9issn
2211-1247pii
S2211-1247(19)31399-3journal_volume
29pub_type
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