Influence of Microbes on Neutrophil Life and Death

Neutrophils are the most abundant leukocyte in humans and they are among the first white cells recruited to infected tissues. These leukocytes are essential for the innate immune response to bacteria and fungi. Inasmuch as neutrophils produce or contain potent microbicides that can be toxic to the h...

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Main Authors: Frank R. DeLeo, Scott D. Kobayashi, Natalia Malachowa
Format: Article
Language:English
Published: Frontiers Media S.A. 2017-05-01
Series:Frontiers in Cellular and Infection Microbiology
Subjects:
Online Access:http://journal.frontiersin.org/article/10.3389/fcimb.2017.00159/full
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author Frank R. DeLeo
Scott D. Kobayashi
Natalia Malachowa
author_facet Frank R. DeLeo
Scott D. Kobayashi
Natalia Malachowa
author_sort Frank R. DeLeo
collection DOAJ
description Neutrophils are the most abundant leukocyte in humans and they are among the first white cells recruited to infected tissues. These leukocytes are essential for the innate immune response to bacteria and fungi. Inasmuch as neutrophils produce or contain potent microbicides that can be toxic to the host, neutrophil turnover and homeostasis is a highly regulated process that prevents unintended host tissue damage. Indeed, constitutive neutrophil apoptosis and subsequent removal of these cells by mononuclear phagocytes is a primary means by which neutrophil homeostasis is maintained in healthy individuals. Processes that alter normal neutrophil turnover and removal of effete cells can lead to host tissue damage and disease. The interaction of neutrophils with microbes and molecules produced by microbes often alters neutrophil turnover. The ability of microbes to alter the fate of neutrophils is highly varied, can be microbe-specific, and ranges from prolonging the neutrophil lifespan to causing rapid neutrophil lysis after phagocytosis. Here we provide a brief overview of these processes and their associated impact on innate host defense.
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spelling doaj.art-ec5d751ed4f64a55a6686934292f88f72022-12-21T18:47:05ZengFrontiers Media S.A.Frontiers in Cellular and Infection Microbiology2235-29882017-05-01710.3389/fcimb.2017.00159263145Influence of Microbes on Neutrophil Life and DeathFrank R. DeLeoScott D. KobayashiNatalia MalachowaNeutrophils are the most abundant leukocyte in humans and they are among the first white cells recruited to infected tissues. These leukocytes are essential for the innate immune response to bacteria and fungi. Inasmuch as neutrophils produce or contain potent microbicides that can be toxic to the host, neutrophil turnover and homeostasis is a highly regulated process that prevents unintended host tissue damage. Indeed, constitutive neutrophil apoptosis and subsequent removal of these cells by mononuclear phagocytes is a primary means by which neutrophil homeostasis is maintained in healthy individuals. Processes that alter normal neutrophil turnover and removal of effete cells can lead to host tissue damage and disease. The interaction of neutrophils with microbes and molecules produced by microbes often alters neutrophil turnover. The ability of microbes to alter the fate of neutrophils is highly varied, can be microbe-specific, and ranges from prolonging the neutrophil lifespan to causing rapid neutrophil lysis after phagocytosis. Here we provide a brief overview of these processes and their associated impact on innate host defense.http://journal.frontiersin.org/article/10.3389/fcimb.2017.00159/fullphagocytosishost defenseapoptosisnecroptosisprogrammed cell deathnecrosis
spellingShingle Frank R. DeLeo
Scott D. Kobayashi
Natalia Malachowa
Influence of Microbes on Neutrophil Life and Death
Frontiers in Cellular and Infection Microbiology
phagocytosis
host defense
apoptosis
necroptosis
programmed cell death
necrosis
title Influence of Microbes on Neutrophil Life and Death
title_full Influence of Microbes on Neutrophil Life and Death
title_fullStr Influence of Microbes on Neutrophil Life and Death
title_full_unstemmed Influence of Microbes on Neutrophil Life and Death
title_short Influence of Microbes on Neutrophil Life and Death
title_sort influence of microbes on neutrophil life and death
topic phagocytosis
host defense
apoptosis
necroptosis
programmed cell death
necrosis
url http://journal.frontiersin.org/article/10.3389/fcimb.2017.00159/full
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AT nataliamalachowa influenceofmicrobesonneutrophillifeanddeath