Alteration of Natural Killer cell phenotype and function in obese individuals

Copyright © 2016 Elsevier Inc. All rights reserved.

Bibliographische Detailangaben
Veröffentlicht in:Clinical immunology (Orlando, Fla.). - 1999. - 177(2017) vom: 01. Apr., Seite 12-17
1. Verfasser: Viel, Sébastien (VerfasserIn)
Weitere Verfasser: Besson, Laurie, Charrier, Emily, Marçais, Antoine, Disse, Emmanuel, Bienvenu, Jacques, Walzer, Thierry, Dumontet, Charles
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2017
Zugriff auf das übergeordnete Werk:Clinical immunology (Orlando, Fla.)
Schlagworte:Journal Article Research Support, Non-U.S. Gov't Body mass index Cytotoxicity Degranulation Multiparameter FACS Natural Killer cells Obesity
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520 |a Obesity is associated with increased cancer rates and higher susceptibility to infections. The adipose tissue of obese individuals is inflammatory and may negatively impact on innate and adaptive immunity in a systemic way. Here, we explored the phenotype and function of peripheral Natural Killer (NK) cells of patients in correlation with their body mass index (BMI). We found that high BMI was associated with an increased activation status of peripheral NK cells, as measured by surface levels of CD69 and levels of granzyme-B. However, these activated NK cells had an impaired capacity to degranulate or to produce cytokines/chemokines when exposed to tumor cell lines deficient in MHC-I expression or coated with antibodies. This suggests that chronic stimulation of NK cells during obesity may lead to their incapacity to respond normally and eliminate target cells, which could contribute to the greater susceptibility of obese individuals to develop cancers or infectious diseases 
650 4 |a Journal Article 
650 4 |a Research Support, Non-U.S. Gov't 
650 4 |a Body mass index 
650 4 |a Cytotoxicity 
650 4 |a Degranulation 
650 4 |a Multiparameter FACS 
650 4 |a Natural Killer cells 
650 4 |a Obesity 
700 1 |a Besson, Laurie  |e verfasserin  |4 aut 
700 1 |a Charrier, Emily  |e verfasserin  |4 aut 
700 1 |a Marçais, Antoine  |e verfasserin  |4 aut 
700 1 |a Disse, Emmanuel  |e verfasserin  |4 aut 
700 1 |a Bienvenu, Jacques  |e verfasserin  |4 aut 
700 1 |a Walzer, Thierry  |e verfasserin  |4 aut 
700 1 |a Dumontet, Charles  |e verfasserin  |4 aut 
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