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NK Cells: Uncertain Allies against Malaria

Until recently, studies of natural killer (NK) cells in infection have focused almost entirely on their role in viral infections. However, there is an increasing awareness of the potential for NK cells to contribute to the control of a wider range of pathogens, including intracellular parasites such...

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Autores principales: Wolf, Asia-Sophia, Sherratt, Samuel, Riley, Eleanor M.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Frontiers Media S.A. 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5343013/
https://www.ncbi.nlm.nih.gov/pubmed/28337195
http://dx.doi.org/10.3389/fimmu.2017.00212
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author Wolf, Asia-Sophia
Sherratt, Samuel
Riley, Eleanor M.
author_facet Wolf, Asia-Sophia
Sherratt, Samuel
Riley, Eleanor M.
author_sort Wolf, Asia-Sophia
collection PubMed
description Until recently, studies of natural killer (NK) cells in infection have focused almost entirely on their role in viral infections. However, there is an increasing awareness of the potential for NK cells to contribute to the control of a wider range of pathogens, including intracellular parasites such as Plasmodium spp. Given the high prevalence of parasitic diseases in the developing world and the devastating effects these pathogens have on large numbers of vulnerable people, investigating interactions between NK cells and parasitized host cells presents the opportunity to reveal novel immunological mechanisms with the potential to aid efforts to eradicate these diseases. The capacity of NK cells to produce inflammatory cytokines early after malaria infection, as well as a possible role in direct cytotoxic killing of malaria-infected cells, suggests a beneficial impact of NK cells in this disease. However, NK cells may also contribute to overproduction of pro-inflammatory cytokines and the consequent immunopathology. As comparatively little is known about the role of NK cells later in the course of infection, and growing evidence suggests that heterogeneity in NK cell responses to malaria may be influenced by KIR/HLA interactions, a better understanding of the mechanisms by which NK cells might directly interact with parasitized cells may reveal a new role for these cells in the course of malaria infection.
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spelling pubmed-53430132017-03-23 NK Cells: Uncertain Allies against Malaria Wolf, Asia-Sophia Sherratt, Samuel Riley, Eleanor M. Front Immunol Immunology Until recently, studies of natural killer (NK) cells in infection have focused almost entirely on their role in viral infections. However, there is an increasing awareness of the potential for NK cells to contribute to the control of a wider range of pathogens, including intracellular parasites such as Plasmodium spp. Given the high prevalence of parasitic diseases in the developing world and the devastating effects these pathogens have on large numbers of vulnerable people, investigating interactions between NK cells and parasitized host cells presents the opportunity to reveal novel immunological mechanisms with the potential to aid efforts to eradicate these diseases. The capacity of NK cells to produce inflammatory cytokines early after malaria infection, as well as a possible role in direct cytotoxic killing of malaria-infected cells, suggests a beneficial impact of NK cells in this disease. However, NK cells may also contribute to overproduction of pro-inflammatory cytokines and the consequent immunopathology. As comparatively little is known about the role of NK cells later in the course of infection, and growing evidence suggests that heterogeneity in NK cell responses to malaria may be influenced by KIR/HLA interactions, a better understanding of the mechanisms by which NK cells might directly interact with parasitized cells may reveal a new role for these cells in the course of malaria infection. Frontiers Media S.A. 2017-03-09 /pmc/articles/PMC5343013/ /pubmed/28337195 http://dx.doi.org/10.3389/fimmu.2017.00212 Text en Copyright © 2017 Wolf, Sherratt and Riley. http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
spellingShingle Immunology
Wolf, Asia-Sophia
Sherratt, Samuel
Riley, Eleanor M.
NK Cells: Uncertain Allies against Malaria
title NK Cells: Uncertain Allies against Malaria
title_full NK Cells: Uncertain Allies against Malaria
title_fullStr NK Cells: Uncertain Allies against Malaria
title_full_unstemmed NK Cells: Uncertain Allies against Malaria
title_short NK Cells: Uncertain Allies against Malaria
title_sort nk cells: uncertain allies against malaria
topic Immunology
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5343013/
https://www.ncbi.nlm.nih.gov/pubmed/28337195
http://dx.doi.org/10.3389/fimmu.2017.00212
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