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Regulation of inflammation- and infection-driven hematopoiesis


Boettcher, Steffen; Manz, Markus G (2017). Regulation of inflammation- and infection-driven hematopoiesis. Trends in Immunology, 38(5):345-357.

Abstract

Innate myeloid immune cells, and neutrophils in particular, serve as first line of defense against pathogenic microorganisms including bacteria and fungi. Given their short life span during steady-state conditions, myeloid cells - with, in some cases, the exception of tissue macrophages - need to be constantly regenerated from hematopoietic stem and progenitor cells. During severe systemic bacterial infection, myeloid cell turnover is dramatically increased due to their unique modus operandi in combating invading pathogens involving release of lytic enzymes and neutrophil extracellular traps. Consequently, steady-state hematopoiesis is switched to emergency hematopoiesis by launching a unique hematopoietic response program that is aimed at greatly increasing myeloid cell output to meet the higher demand. In this review, we will discuss well-established as well as recently emerging concepts around the regulation of this fundamental process.

Abstract

Innate myeloid immune cells, and neutrophils in particular, serve as first line of defense against pathogenic microorganisms including bacteria and fungi. Given their short life span during steady-state conditions, myeloid cells - with, in some cases, the exception of tissue macrophages - need to be constantly regenerated from hematopoietic stem and progenitor cells. During severe systemic bacterial infection, myeloid cell turnover is dramatically increased due to their unique modus operandi in combating invading pathogens involving release of lytic enzymes and neutrophil extracellular traps. Consequently, steady-state hematopoiesis is switched to emergency hematopoiesis by launching a unique hematopoietic response program that is aimed at greatly increasing myeloid cell output to meet the higher demand. In this review, we will discuss well-established as well as recently emerging concepts around the regulation of this fundamental process.

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Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:04 Faculty of Medicine > University Hospital Zurich > Clinic for Hematology
Dewey Decimal Classification:610 Medicine & health
Language:English
Date:2017
Deposited On:06 Nov 2017 14:48
Last Modified:19 Feb 2018 09:09
Publisher:Elsevier
ISSN:1471-4906
OA Status:Closed
Publisher DOI:https://doi.org/10.1016/j.it.2017.01.004.
PubMed ID:28216309

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