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Dysregulation of Natural Killer Cells in Obesity

by 1,2 and 2,3,*
1
Department of Endocrinology, St. Vincent’s University Hospital & University College Dublin, Dublin 4, Ireland
2
National Children’s Research Centre, Crumlin, Dublin 12, Ireland
3
Human Health Institute, Maynooth University, Co. W23 F2K8 Kildare, Ireland
*
Author to whom correspondence should be addressed.
Cancers 2019, 11(4), 573; https://doi.org/10.3390/cancers11040573
Received: 6 February 2019 / Revised: 8 April 2019 / Accepted: 10 April 2019 / Published: 23 April 2019
(This article belongs to the Special Issue Natural Killer Cells and Cancer Therapy)
Natural killer (NK) cells are a population of lymphocytes which classically form part of the innate immune system. They are defined as innate lymphocytes, due to their ability to kill infected or transformed cells without prior activation. In addition to their cytotoxic abilities, NK cells are also rapid producers of inflammatory cytokines such as interferon gamma (IFN-γ) and are therefore a critical component of early immune responses. Due to these unique abilities, NK cells are a very important component of host protection, especially anti-tumour and anti-viral immunity. Obesity is a worldwide epidemic, with over 600 million adults and 124 million children now classified as obese. It is well established that individuals who are obese are at a higher risk of many acute and chronic conditions, including cancer and viral infections. Over the past 10 years, many studies have investigated the impact of obesity on NK cell biology, detailing systemic dysregulation of NK cell functions. More recently, several studies have investigated the role of NK cells in the homeostasis of adipose tissue and the pathophysiology of obesity. In this review, we will discuss in detail these studies and focus on emerging data detailing the metabolic mechanisms altering NK cells in obesity. View Full-Text
Keywords: cancer; NK cell; obesity; metabolism; adipose tissue cancer; NK cell; obesity; metabolism; adipose tissue
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MDPI and ACS Style

O’Shea, D.; Hogan, A.E. Dysregulation of Natural Killer Cells in Obesity. Cancers 2019, 11, 573. https://doi.org/10.3390/cancers11040573

AMA Style

O’Shea D, Hogan AE. Dysregulation of Natural Killer Cells in Obesity. Cancers. 2019; 11(4):573. https://doi.org/10.3390/cancers11040573

Chicago/Turabian Style

O’Shea, Donal; Hogan, Andrew E. 2019. "Dysregulation of Natural Killer Cells in Obesity" Cancers 11, no. 4: 573. https://doi.org/10.3390/cancers11040573

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