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Title 

Development of natural killer cells from hematopoietic stem cells

Authors 

Suk Ran YoonJin Woong ChungIn Pyo Choi

Publisher 

Springer Verlag (Germany)

Issue Date 

2007

Citation 

Molecules and Cells, vol. 24, no. 1, pp. 1-8

Keywords 

hematopoietic stem cellsnatural killer cell differentiationNK cell therapyNK receptor repertoireallogeneic hematopoietic stem cell transplantationbone marrow cellcell activationcell differentiationcell functioncell killing

Abstract 

Natural killer (NK) cells play a crucial role in innate immune system and tumor surveillance. NK cells are derived from CD34+hematopoietic stem cells and undergo differentiation via precursor NK cells in bone marrow (BM) through sequential acquisition of functional surface receptors. During differentiation of NK cells, many factors are involved including cytokines, membrane factors and transcription factors as well as microenvironment of BM. NK cells express their own repertoire of receptors including activating and inhibitory receptors that bind to major histocompatibility complex (MHC) class I or class I-related molecules. The balance between activating and inhibitory receptors determines the function of NK cells to kill targets. Binding of NK cell inhibitory receptors to their MHC class I-ligand renders the target cells to be protected from NK cell-mediated cytotoxicity. Thus, NK cells are able to discriminate self from non-self through MHC class I-binding inhibitory receptor. Using intrinsic properties of NK cells, NK cells are emerging to apply as therapeutic agents against many types of cancers. Recently, NK cell alloactivity has also been exploited in killer cell immunoglobulin-like receptor mismatched haploidentical stem cell transplantation to reduce the rate of relapse and graft versus host disease. In this review, we discuss the basic mechanisms of NK cell differentiation, diversity of NK cell receptors, and clinical applications of NK cells for anti-cancer immunotherapy.

ISSN 

1016-8478

Appears in Collections

1. Journal Articles > Journal Articles

Registered Date

2019-05-02


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