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Differentiation and Functionality of Bone Marrow-Derived Mast Cells Depend on Varying Physiologic Oxygen Conditions

Mast cells (MCs) are long-living multifunctional innate immune cells that originate from hematopoietic precursors and specifically differentiate in the destination tissue, e.g., skin, respiratory mucosa, intestine, where they mediate immune cell recruitment and antimicrobial defense. In vivo these t...

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Autores principales: Möllerherm, Helene, Meier, Karsten, Schmies, Kathrin, Fuhrmann, Herbert, Naim, Hassan Y., von Köckritz-Blickwede, Maren, Branitzki-Heinemann, Katja
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Frontiers Media S.A. 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5714875/
https://www.ncbi.nlm.nih.gov/pubmed/29250065
http://dx.doi.org/10.3389/fimmu.2017.01665
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author Möllerherm, Helene
Meier, Karsten
Schmies, Kathrin
Fuhrmann, Herbert
Naim, Hassan Y.
von Köckritz-Blickwede, Maren
Branitzki-Heinemann, Katja
author_facet Möllerherm, Helene
Meier, Karsten
Schmies, Kathrin
Fuhrmann, Herbert
Naim, Hassan Y.
von Köckritz-Blickwede, Maren
Branitzki-Heinemann, Katja
author_sort Möllerherm, Helene
collection PubMed
description Mast cells (MCs) are long-living multifunctional innate immune cells that originate from hematopoietic precursors and specifically differentiate in the destination tissue, e.g., skin, respiratory mucosa, intestine, where they mediate immune cell recruitment and antimicrobial defense. In vivo these tissues have characteristic physiological oxygen levels that are considerably lower than the atmospheric oxygen conditions (159 mmHg, 21% O(2); 5% CO(2)) traditionally used to differentiate MCs and to study their functionality in vitro. Only little is known about the impact of physiological oxygen conditions on the differentiation process of MCs. This study aimed to characterize the differentiation of immature murine bone marrow-derived MCs under physioxia in vitro (7% O(2); 53 mmHg; 5% CO(2)). Bone marrow-derived suspension cells were differentiated in the presence of interleukin-3 with continuous, non-invasive determination of the oxygen level using a Fibox4-PSt3 measurement system without technique-caused oxygen consumption. Trypan blue staining confirmed cellular viability during the specified period. Interestingly, MCs cultivated at 7% O(2) showed a significantly delayed differentiation rate defined by CD117-positive cells, analyzed by flow cytometry, and reached >95% CD117 positive population at day 32 after isolation. Importantly, MCs differentiated under physioxia displayed a decreased transcript expression level of hif-1α and selected target genes vegf, il-6, and tnf-α, but an increase of foxo3 and vhl expression compared to MCs cultivated under normoxia. Moreover, the production of reactive oxygen species as well as the amount of intracellular stored histamine was significantly lower in MCs differentiated under low oxygen levels, which might have consequences for their function such as immunomodulation of other immune cells. These results show for the first time that physioxia substantially affect maturation and the properties of MCs and highlight the need to study their function under physiologically relevant oxygen conditions.
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spelling pubmed-57148752017-12-15 Differentiation and Functionality of Bone Marrow-Derived Mast Cells Depend on Varying Physiologic Oxygen Conditions Möllerherm, Helene Meier, Karsten Schmies, Kathrin Fuhrmann, Herbert Naim, Hassan Y. von Köckritz-Blickwede, Maren Branitzki-Heinemann, Katja Front Immunol Immunology Mast cells (MCs) are long-living multifunctional innate immune cells that originate from hematopoietic precursors and specifically differentiate in the destination tissue, e.g., skin, respiratory mucosa, intestine, where they mediate immune cell recruitment and antimicrobial defense. In vivo these tissues have characteristic physiological oxygen levels that are considerably lower than the atmospheric oxygen conditions (159 mmHg, 21% O(2); 5% CO(2)) traditionally used to differentiate MCs and to study their functionality in vitro. Only little is known about the impact of physiological oxygen conditions on the differentiation process of MCs. This study aimed to characterize the differentiation of immature murine bone marrow-derived MCs under physioxia in vitro (7% O(2); 53 mmHg; 5% CO(2)). Bone marrow-derived suspension cells were differentiated in the presence of interleukin-3 with continuous, non-invasive determination of the oxygen level using a Fibox4-PSt3 measurement system without technique-caused oxygen consumption. Trypan blue staining confirmed cellular viability during the specified period. Interestingly, MCs cultivated at 7% O(2) showed a significantly delayed differentiation rate defined by CD117-positive cells, analyzed by flow cytometry, and reached >95% CD117 positive population at day 32 after isolation. Importantly, MCs differentiated under physioxia displayed a decreased transcript expression level of hif-1α and selected target genes vegf, il-6, and tnf-α, but an increase of foxo3 and vhl expression compared to MCs cultivated under normoxia. Moreover, the production of reactive oxygen species as well as the amount of intracellular stored histamine was significantly lower in MCs differentiated under low oxygen levels, which might have consequences for their function such as immunomodulation of other immune cells. These results show for the first time that physioxia substantially affect maturation and the properties of MCs and highlight the need to study their function under physiologically relevant oxygen conditions. Frontiers Media S.A. 2017-11-30 /pmc/articles/PMC5714875/ /pubmed/29250065 http://dx.doi.org/10.3389/fimmu.2017.01665 Text en Copyright © 2017 Möllerherm, Meier, Schmies, Fuhrmann, Naim, von Köckritz-Blickwede and Branitzki-Heinemann. 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
Möllerherm, Helene
Meier, Karsten
Schmies, Kathrin
Fuhrmann, Herbert
Naim, Hassan Y.
von Köckritz-Blickwede, Maren
Branitzki-Heinemann, Katja
Differentiation and Functionality of Bone Marrow-Derived Mast Cells Depend on Varying Physiologic Oxygen Conditions
title Differentiation and Functionality of Bone Marrow-Derived Mast Cells Depend on Varying Physiologic Oxygen Conditions
title_full Differentiation and Functionality of Bone Marrow-Derived Mast Cells Depend on Varying Physiologic Oxygen Conditions
title_fullStr Differentiation and Functionality of Bone Marrow-Derived Mast Cells Depend on Varying Physiologic Oxygen Conditions
title_full_unstemmed Differentiation and Functionality of Bone Marrow-Derived Mast Cells Depend on Varying Physiologic Oxygen Conditions
title_short Differentiation and Functionality of Bone Marrow-Derived Mast Cells Depend on Varying Physiologic Oxygen Conditions
title_sort differentiation and functionality of bone marrow-derived mast cells depend on varying physiologic oxygen conditions
topic Immunology
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5714875/
https://www.ncbi.nlm.nih.gov/pubmed/29250065
http://dx.doi.org/10.3389/fimmu.2017.01665
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