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Transcriptional programs define molecular characteristics of innate lymphoid cell
classes and subsets
#MMPMID25621825
Robinette ML
; Fuchs A
; Cortez VS
; Lee JS
; Wang Y
; Durum SK
; Gilfillan S
; Colonna M
Nat Immunol
2015[Mar]; 16
(3
): 306-17
PMID25621825
show ga
The recognized diversity of innate lymphoid cells (ILCs) is rapidly expanding.
Three ILC classes have emerged, ILC1, ILC2 and ILC3, with ILC1 and ILC3 including
several subsets. The classification of some subsets is unclear, and it remains
controversial whether natural killer (NK) cells and ILC1 cells are distinct cell
types. To address these issues, we analyzed gene expression in ILCs and NK cells
from mouse small intestine, spleen and liver, as part of the Immunological Genome
Project. The results showed unique gene-expression patterns for some ILCs and
overlapping patterns for ILC1 cells and NK cells, whereas other ILC subsets
remained indistinguishable. We identified a transcriptional program shared by
small intestine ILCs and a core ILC signature. We revealed and discuss
transcripts that suggest previously unknown functions and developmental paths for
ILCs.