title: Natural "helper" cells in the lung: good or bad help?
abstract: The natural helper (NH) cell comprises a newly identified Th2 cell-type innate lymphocyte population. In this issue of Immunity, Halim et al. (2012) provide evidence that NH cells reside in the lung and play a critical role in protease allergen-induced airway inflammation.
authors.affiliation: Department of Microbiology and Immunology, Keio University School of Medicine, Tokyo 160-8582, Japan. koyasu@z3.keio.jp
authors.forename: Shigeo
authors.initials: S
authors.lastname: Koyasu
authors.forename: Kazuyo
authors.initials: K
authors.lastname: Moro