title: How Many Subsets of Innate Lymphoid Cells Do We Need?
abstract: Innate lymphoid cells (ILCs) are composed of three main subsets. In this issue of Immunity, Simoni et al. (2017) show using mass-cytometry that human ILCs are highly heterogeneous between individuals and tissues and lack a previously proposed helper-type ILC1 population.
authors.affiliation: Laboratory for Innate Immune Systems, RIKEN Center for Integrative Medical Sciences, 1-7-22 Suehiro-cho, Tsurumi-ku, Yokohama 230-0045, Japan.
authors.forename: Kafi N
authors.initials: KN
authors.lastname: Ealey
authors.affiliation: Laboratory for Immune Cell Systems, RIKEN Center for Integrative Medical Sciences, 1-7-22 Suehiro-cho, Tsurumi-ku, Yokohama 230-0045, Japan. Electronic address: shigeo.koyasu@riken.jp.
authors.forename: Shigeo
authors.initials: S
authors.lastname: Koyasu
mesh_terms: D006801:Humans; D007113:Immunity, Innate / Q000276:immunology*; D008214:Lymphocytes / Q000276:immunology*