2B4 dysfunction in XLP1 NK cells : More than inability to control EBV infection

Copyright © 2018 Elsevier Inc. All rights reserved.

Bibliographische Detailangaben
Veröffentlicht in:Clinical immunology (Orlando, Fla.). - 1999. - 204(2019) vom: 15. Juli, Seite 31-36
1. Verfasser: Pende, Daniela (VerfasserIn)
Weitere Verfasser: Meazza, Raffaella, Marcenaro, Stefania, Aricò, Maurizio, Bottino, Cristina
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2019
Zugriff auf das übergeordnete Werk:Clinical immunology (Orlando, Fla.)
Schlagworte:Journal Article Research Support, Non-U.S. Gov't Review 2B4 NK cells NK receptors NK-cell education SAP XLP1 CD244 protein, human Signaling Lymphocytic Activation Molecule Family
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520 |a X-linked lymphoproliferative disease 1 (XLP1) is a monogenic disorder caused by mutations in SH2D1A, resulting in the absence/dysfunction of the signaling lymphocyte activation molecule (SLAM)-associated protein (SAP). Consequently, SLAM receptors as 2B4 (CD244) and NTB-A (SLAMF6), upon ligand engagement, exert inhibitory instead of activating function. This causes an immune dysfunction that is worsened by the selective inability of NK and T cells to kill EBV-infected B cells with dramatic clinical sequelae (e.g. fulminant mononucleosis, hyperinflammation, lymphoma). Here we outline recent findings on the interplay between inhibitory 2B4 and the various activating receptors in NK cells. 2B4 engagement selectively blocks ITAM-dependent activating receptors as NCR and CD16, while it does not affect NKG2D and DNAM-1. Furthermore, inhibitory 2B4 participates to NK cell education, as highlighted by the existence in XLP1 patients of a large subset of fully functional NK cells that lack self-HLA specific inhibitory receptors and exert autoreactivity against mature dendritic cells 
650 4 |a Journal Article 
650 4 |a Research Support, Non-U.S. Gov't 
650 4 |a Review 
650 4 |a 2B4 
650 4 |a NK cells 
650 4 |a NK receptors 
650 4 |a NK-cell education 
650 4 |a SAP 
650 4 |a XLP1 
650 7 |a CD244 protein, human  |2 NLM 
650 7 |a Signaling Lymphocytic Activation Molecule Family  |2 NLM 
700 1 |a Meazza, Raffaella  |e verfasserin  |4 aut 
700 1 |a Marcenaro, Stefania  |e verfasserin  |4 aut 
700 1 |a Aricò, Maurizio  |e verfasserin  |4 aut 
700 1 |a Bottino, Cristina  |e verfasserin  |4 aut 
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773 1 8 |g volume:204  |g year:2019  |g day:15  |g month:07  |g pages:31-36 
856 4 0 |u http://dx.doi.org/10.1016/j.clim.2018.10.022  |3 Volltext 
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