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Table 1.

Mouse and human innate lymphoid cell (ILC) phenotypes

Group Progenitor Mouse
Human
Cytokines
Cell-surface molecules TFs Cell-surface molecules TFs
1 cNK CD122, CD49b, NK1.1, NKG2A, NKp46, IL-12RB1, CD25, KLRG1 EOMES T-bet CD122, NKG2A, NKp46, NKp44+/−, IL-12RB1, CD25, KLRG1 EOMES T-bet IFN-γ, TNF
ieILC1 CD122, CD90, NK1.1, NKG2A, NKp46, IL-12RB1 EOMES T-bet CD122, NKG2A, NKp46, NKp44, IL-12RB1 EOMES T-bet IFN-γ
ILC1 CD127, CD122, CD90, CD49a, NK1.1, NKp46, IL-12RB1 T-bet CD127, CD161, IL-12RB1, KLRG1, ICOS, CD4+/− T-bet IFN-γ, TNF
2 ILC2 CD127, CD90, CRTH2, CD117+/−, CD25, ST2, TSLPR, IL-17RB, KLRG1, ICOS, MHCII GATA3 CD127, CD161, CRTH2, CD117+/−, CD25, ST2, TSLPR, IL17RB, KLRG1, ICOS, CCR6, MHCII GATA3 IL-4, IL-5, IL-9, IL-13
3 ILC3 NCR+ CD127, CD90, CD117, NKp46, CD25, ICOS, IL-23R, L-1R1 RORγt T-bet CD127, CD161, CD117, NKp46, NKp44, IL-12RB1, CD25, ICOS, CCR6, IL-23R, IL-1R1, MHCII RORγt IL-22
ILC3 NCR CD127, CD90, CD25, ICOS, IL-23R, IL-1R1, MHCII RORγt T-bet CD127, CD161, CD117, IL-12RB1, CD25, ICOS, CCR6, IL-23R, IL-1R1 RORγt IL-17A
LTi CD127, CD90, CD117, CD25, CCR6, IL-23R, IL-1R1, MCHII, CD4+/−, NRP1 RORγt CD127, CD161, CD117, CD25, CCR6, IL-23R, IL-1R1, NRP1 RORγt IL-17A, IL-22

ICOS, Inducible T-cell costimulator; KLRG1, killer cell lectin-like receptor subfamily G member 1; NCR, natural cytotoxicity receptor; GATA3, GATA-binding factor 3; EOMES, eomesodermin; TSLPR, thymic stromal lymphopoietin receptor; TFs; transcription factors; IFN, interferon; TNF, tumor necrosis factor; IL, interleukin; RORγt, RAR-related orphan receptor γt.