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Semin Immunol. 2014 Apr;26(2):107-13. doi: 10.1016/j.smim.2014.01.006. Epub 2014 Feb 18.

Development of human natural killer cells and other innate lymphoid cells.

Author information

1
Dipartimento di Medicina Sperimentale, Università di Genova, Via L.B. Alberti 2, 16132 Genova, Italy. Electronic address: montaldo.elisa@gmail.com.
2
Dipartimento di Medicina Sperimentale, Università di Genova, Via L.B. Alberti 2, 16132 Genova, Italy. Electronic address: paola.vacca@unige.it.
3
Istituto Giannina Gaslini, Via Gerolamo Gaslini 5, 16147 Genova, Italy. Electronic address: lorenzomoretta@ospedale-gaslini.ge.it.
4
Dipartimento di Medicina Sperimentale, Università di Genova, Via L.B. Alberti 2, 16132 Genova, Italy; IRCCS AOU San Martino-IST, L.go R. Benzi 10, 16132 Genova, Italy. Electronic address: mariacristina.mingari@unige.it.

Abstract

Innate lymphoid cells (ILC) have recently gained much attention in immunology. They represent a novel developmentally related family. Three distinct subsets have been identified on the basis of phenotypic and functional criteria and termed ILC1, ILC2, and ILC3. The available data suggest that ILC play an important role in innate defenses against different pathogens, in lymphoid organogenesis, and in tissue remodeling. All these aspects are relevant in hematopoietic stem cell transplantation (HSCT), particularly in the haplo-HSCT setting, in which donor NK cells are known to play a major therapeutic role, while the involvement of other ILC is still undefined. In this context, it has been postulated that all ILC share a common precursor expressing the ID2 transcription factor. While the differentiation of human NK cells (belonging to ILC1) is now well characterized both in vitro and in vivo, limited information is available on the development of human ILC2 and ILC3 and of their relationships with NK cells. In this review, we will summarize the present knowledge on the developmental relationship among different ILC, with particular focus on early stages of NK cell differentiation, and their features shared with ILC2 and ILC3.

KEYWORDS:

ILC development; ILC2; ILC3; NCR; NK cells

PMID:
24559836
DOI:
10.1016/j.smim.2014.01.006
[Indexed for MEDLINE]

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