Human NK cells: From development to effector functions

NK cells are the major lymphocyte subset of the innate immune system that mediates antiviral and anti-tumor responses. It is well established that they develop mechanisms to distinguish self from non-self during the process of NK cell education. Unlike T and B cells, natural killer cells lack clonot...

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Main Author: Arosh Shavinda Perera Molligoda Arachchige
Format: Article
Language:English
Published: SAGE Publishing 2021-04-01
Series:Innate Immunity
Online Access:https://doi.org/10.1177/17534259211001512
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author Arosh Shavinda Perera Molligoda Arachchige
author_facet Arosh Shavinda Perera Molligoda Arachchige
author_sort Arosh Shavinda Perera Molligoda Arachchige
collection DOAJ
description NK cells are the major lymphocyte subset of the innate immune system that mediates antiviral and anti-tumor responses. It is well established that they develop mechanisms to distinguish self from non-self during the process of NK cell education. Unlike T and B cells, natural killer cells lack clonotypic receptors and are activated after recognizing their target via germline-encoded receptors through natural cytotoxicity, cytokine stimulation, and Ab-dependent cellular cytotoxicity. Subsequently, they utilize cytotoxic granules, death receptor ligands, and cytokines to perform their effector functions. In this review, we provide a general overview of human NK cells, as opposed to murine NK cells, discussing their ontogeny, maturation, receptor diversity, types of responses, and effector functions. Furthermore, we also describe recent advances in human NK cell biology, including tissue-resident NK cell populations, NK cell memory, and novel approaches used to target NK cells in cancer immunotherapy.
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spelling doaj.art-ae41c43f29b34bb9a02b060e012fb9872022-12-21T22:05:48ZengSAGE PublishingInnate Immunity1753-42591753-42672021-04-012710.1177/17534259211001512Human NK cells: From development to effector functionsArosh Shavinda Perera Molligoda ArachchigeNK cells are the major lymphocyte subset of the innate immune system that mediates antiviral and anti-tumor responses. It is well established that they develop mechanisms to distinguish self from non-self during the process of NK cell education. Unlike T and B cells, natural killer cells lack clonotypic receptors and are activated after recognizing their target via germline-encoded receptors through natural cytotoxicity, cytokine stimulation, and Ab-dependent cellular cytotoxicity. Subsequently, they utilize cytotoxic granules, death receptor ligands, and cytokines to perform their effector functions. In this review, we provide a general overview of human NK cells, as opposed to murine NK cells, discussing their ontogeny, maturation, receptor diversity, types of responses, and effector functions. Furthermore, we also describe recent advances in human NK cell biology, including tissue-resident NK cell populations, NK cell memory, and novel approaches used to target NK cells in cancer immunotherapy.https://doi.org/10.1177/17534259211001512
spellingShingle Arosh Shavinda Perera Molligoda Arachchige
Human NK cells: From development to effector functions
Innate Immunity
title Human NK cells: From development to effector functions
title_full Human NK cells: From development to effector functions
title_fullStr Human NK cells: From development to effector functions
title_full_unstemmed Human NK cells: From development to effector functions
title_short Human NK cells: From development to effector functions
title_sort human nk cells from development to effector functions
url https://doi.org/10.1177/17534259211001512
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