Priority Research Papers: Immunology:
Zbtb1 controls NKp46+ ROR-gamma-T+ innate lymphoid cell (ILC3) development
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Abstract
Ying Lu1, Xianyu Zhang1, Nicolas Bouladoux2, Saransh Neel Kaul3, Kangxin Jin4, Derek Sant’Angelo5, Yasmine Belkaid2 and Damian Kovalovsky1,6
1 Experimental Immunology Branch, NCI, NIH, Bethesda, MD, USA
2 Mucosal Immunology Section, Laboratory of Parasitic Diseases, NIAID, NIH, Bethesda, MD, USA
3 University of Maryland, College Park, MD, USA
4 Zhongshan Ophthalmic Center, State Key Laboratory for Ophthalmic Researches, Sun Yat-Sen University, Guangzhou, Guangdong, China
5 Cancer Metabolism and Growth Program, Rutgers, Child Health Institute of New Jersey, New Brunswick, NJ, USA
6 Experimental Transplantation and Immunology Branch, NCI, NIH, Bethesda, MD, USA
Correspondence to:
Damian Kovalovsky, email:
Keywords: innate lymphoid cells, ILC, ILC3, Zbtb1, IFN-γ, Immunology and Microbiology Section, Immune response, Immunity
Received: May 16, 2017 Accepted: July 14, 2017 Published: July 27, 2017
Abstract
Innate lymphoid cells (ILCs) play a central role conferring protection at the mucosal frontier. In this study, we have identified a requirement of the transcription factor Zbtb1 for the development of RORγt+ ILCs (ILC3s). Zbtb1-deficient mice lacked NKp46+ ILC3 cells in the lamina propria of the small and large intestine. This requirement of Zbtb1 was cell intrinsic, as NKp46+ ILC3s were not generated from Zbtb1-deficient progenitors in bone marrow chimeras and Zbtb1-deficient RORγt+ CCR6-NKp46- ILC3s didn’t generate NKp46+ ILC3s in co-cultures with OP9-DL1 stroma. In correlation with this impairment, Zbtb1-deficient ILC3 cells failed to upregulate T-bet expression, and to acquire IFN-γ production characteristic of NKp46+ cells. Finally, absence of NKp46+ILC3 cells combined with the absence of T-cells in Zbtb1-deficient mice, led to a transient susceptibility to C. rodentium infections. Altogether, these results establish that Zbtb1 is essential for the development of NKp46+ ILC3 cells.
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