Biological role of NK cells and immunotherapeutic approaches in breast cancer

In recent decades, tumor surveillance by the immune system and its impact on disease outcomes in cancer patients in general and in breast cancer (BC) patients in particular has been documented. Natural killer (NK) cells are central components of the innate immunity and existing data indicate that th...

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Main Authors: María Paula Roberti, José eMordoh, Estrella Mariel Levy
Format: Article
Language:English
Published: Frontiers Media S.A. 2012-12-01
Series:Frontiers in Immunology
Subjects:
Online Access:http://journal.frontiersin.org/Journal/10.3389/fimmu.2012.00375/full
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author María Paula Roberti
José eMordoh
José eMordoh
Estrella Mariel Levy
author_facet María Paula Roberti
José eMordoh
José eMordoh
Estrella Mariel Levy
author_sort María Paula Roberti
collection DOAJ
description In recent decades, tumor surveillance by the immune system and its impact on disease outcomes in cancer patients in general and in breast cancer (BC) patients in particular has been documented. Natural killer (NK) cells are central components of the innate immunity and existing data indicate that they play a role in preventing and controlling tumor growth and metastasis. Their biological significance was first recognized by their ability to exert direct cellular cytotoxicity without prior sensitization. This is important in tumors, as transforming events are likely to result in downregulation of self-ligands and expression of stress-induced ligands which can be recognized by NK cells. Their activation also leads to secretion of stimulatory cytokines which participate in cancer elimination by several direct mechanisms as well as by stimulating the adaptive immune system. In this regard, it was recently revealed a dendritic cell (DC)-NK cell crosstalk which provides another novel pathway linking innate and adaptive immunity. In addition, NK cells are feasible targets of stimulation in immunotherapeutic approaches such as antibody-based strategies and adoptive cell transfer. Nevertheless, NK cells display impaired functionality and capability to infiltrate tumors in BC patients. This review compiles information about NK cell biology in BC and the attempts which aim to manipulate them in novel therapeutic approaches in this pathology.
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spelling doaj.art-c42f8db8e4c14ed9b7be1b85bd4373252022-12-21T22:20:34ZengFrontiers Media S.A.Frontiers in Immunology1664-32242012-12-01310.3389/fimmu.2012.0037536631Biological role of NK cells and immunotherapeutic approaches in breast cancerMaría Paula Roberti0José eMordoh1José eMordoh2Estrella Mariel Levy3Centro de Investigaciones Oncológicas, Fundación Cáncer FUCACentro de Investigaciones Oncológicas, Fundación Cáncer FUCAFundación Instituto Leloir, IIBBA-CONICETCentro de Investigaciones Oncológicas, Fundación Cáncer FUCAIn recent decades, tumor surveillance by the immune system and its impact on disease outcomes in cancer patients in general and in breast cancer (BC) patients in particular has been documented. Natural killer (NK) cells are central components of the innate immunity and existing data indicate that they play a role in preventing and controlling tumor growth and metastasis. Their biological significance was first recognized by their ability to exert direct cellular cytotoxicity without prior sensitization. This is important in tumors, as transforming events are likely to result in downregulation of self-ligands and expression of stress-induced ligands which can be recognized by NK cells. Their activation also leads to secretion of stimulatory cytokines which participate in cancer elimination by several direct mechanisms as well as by stimulating the adaptive immune system. In this regard, it was recently revealed a dendritic cell (DC)-NK cell crosstalk which provides another novel pathway linking innate and adaptive immunity. In addition, NK cells are feasible targets of stimulation in immunotherapeutic approaches such as antibody-based strategies and adoptive cell transfer. Nevertheless, NK cells display impaired functionality and capability to infiltrate tumors in BC patients. This review compiles information about NK cell biology in BC and the attempts which aim to manipulate them in novel therapeutic approaches in this pathology.http://journal.frontiersin.org/Journal/10.3389/fimmu.2012.00375/fullImmunosuppressionImmunotherapybreast cancermonoclonal antibodiesnatural killer (NK) cells
spellingShingle María Paula Roberti
José eMordoh
José eMordoh
Estrella Mariel Levy
Biological role of NK cells and immunotherapeutic approaches in breast cancer
Frontiers in Immunology
Immunosuppression
Immunotherapy
breast cancer
monoclonal antibodies
natural killer (NK) cells
title Biological role of NK cells and immunotherapeutic approaches in breast cancer
title_full Biological role of NK cells and immunotherapeutic approaches in breast cancer
title_fullStr Biological role of NK cells and immunotherapeutic approaches in breast cancer
title_full_unstemmed Biological role of NK cells and immunotherapeutic approaches in breast cancer
title_short Biological role of NK cells and immunotherapeutic approaches in breast cancer
title_sort biological role of nk cells and immunotherapeutic approaches in breast cancer
topic Immunosuppression
Immunotherapy
breast cancer
monoclonal antibodies
natural killer (NK) cells
url http://journal.frontiersin.org/Journal/10.3389/fimmu.2012.00375/full
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