Cutting edge: A critical role for the G protein-coupled receptor mFPR2 in airway inflammation and immune responses

Keqiang Chen, Yingying Le, Ying Liu, Wanghua Gong, Guoguang Ying, Jian Huang, Teizo Yoshimura, Lino Tessarollo, Ji Ming Wang

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81 Citations (Scopus)


The formylpeptide receptor-like 1, now officially termed FPR2, in human and its mouse homolog mFPR2 mediate leukocyte migration in response to agonists associated with inflammation and immune responses. To clarify the in vivo role of the receptor, we generated mice deficient in mFPR2. mFPR2-/- mice showed markedly reduced severity in OVA/alum-induced allergic airway inflammation. This was associated with diminished recruitment of CD11c + dendritic cells into the airway mucosa and secondary lymphoid organs, as well as reduced production of Type 2 cytokines and Igs. We also found that the bronchoalveolar lavage fluid from wild type mice with airway inflammation contained mFPR2 agonist activity. This study reveals a critical role for mFPR2 in the progression of allergic airway inflammation and immune responses.

Original languageEnglish
Pages (from-to)3331-3335
Number of pages5
JournalJournal of Immunology
Issue number7
Publication statusPublished - Apr 1 2010
Externally publishedYes


ASJC Scopus subject areas

  • Immunology and Allergy
  • Immunology

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