title: ILC1 populations join the border patrol.
abstract: It has been unclear whether an innate lymphoid cell (ILC) counterpart to the T helper 1 cell type exists. New studies, including Fuchs et al. (2013) in this issue of Immunity, identify T-bet(+)IFN-γ(+) ILC1 that accumulate in the inflamed intestine of IBD patients.
authors.affiliation: Sir William Dunn School of Pathology, University of Oxford, South Parks Road, Oxford, UK. kevin.maloy@path.ox.ac.uk
authors.forename: Kevin J
authors.initials: KJ
authors.lastname: Maloy
authors.forename: Holm H
authors.initials: HH
authors.lastname: Uhlig