Human Innate Lymphoid Cell Subsets Possess Tissue-Type Based Heterogeneity in Phenotype and Frequency

Yannick Simoni, Michael Fehlings, Henrik N. Kløverpris, Naomi McGovern, Si Lin Koo, Chiew Yee Loh, Shawn Lim, Ayako Kurioka, Joannah R. Fergusson, Choong Leong Tang, Ming Hian Kam, Koh Dennis, Tony Kiat Hon Lim, Alexander Chung Yaw Fui, Chan Weng Hoong, Jerry Kok Yen Chan, Maria Curotto de Lafaille, Sriram Narayanan, Sonia Baig, Muhammad ShabeerSue Anne Ee Shiow Toh, Henry Kun Kiaang Tan, Rosslyn Anicete, Eng Huat Tan, Angela Takano, Paul Klenerman, Alasdair Leslie, Daniel S.W. Tan, Iain Beehuat Tan, Florent Ginhoux, Evan W. Newell

Research output: Contribution to journalArticlepeer-review

348 Scopus citations

Abstract

Animal models have highlighted the importance of innate lymphoid cells (ILCs) in multiple immune responses. However, technical limitations have hampered adequate characterization of ILCs in humans. Here, we used mass cytometry including a broad range of surface markers and transcription factors to accurately identify and profile ILCs across healthy and inflamed tissue types. High dimensional analysis allowed for clear phenotypic delineation of ILC2 and ILC3 subsets. We were not able to detect ILC1 cells in any of the tissues assessed, however, we identified intra-epithelial (ie)ILC1-like cells that represent a broader category of NK cells in mucosal and non-mucosal pathological tissues. In addition, we have revealed the expression of phenotypic molecules that have not been previously described for ILCs. Our analysis shows that human ILCs are highly heterogeneous cell types between individuals and tissues. It also provides a global, comprehensive, and detailed description of ILC heterogeneity in humans across patients and tissues.

Original languageEnglish
Pages (from-to)148-161
Number of pages14
JournalImmunity
Volume46
Issue number1
DOIs
StatePublished - 17 Jan 2017
Externally publishedYes

Keywords

  • CyTOF
  • ILC
  • ILC1
  • ILC2
  • ILC3
  • human
  • ieILC1

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