Modulation of nitric oxide production in RAW 264.7 cells by transforming growth factor-beta and interleukin-10: differential effects on free and encapsulated immunomodulator

The mouse macrophage cell line RAW 264.7 can be stimulated to produce nitric oxide (NO) by muramyltripeptide cholesterol included within biodegradable poly(D,L‐lactide) nanocapsules (NC MTP‐Chol). The aim of this work was to determine whether one or both of the cytokines transforming growth factor‐b...

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Veröffentlicht in:Journal of leukocyte biology 1997-09, Vol.62 (3), p.374-380
Hauptverfasser: Seyler, Isabelle, Appel, Martine, Devissaguet, Jean‐Philippe, Legrand, Philippe, Barratt, Gillian
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container_issue 3
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container_title Journal of leukocyte biology
container_volume 62
creator Seyler, Isabelle
Appel, Martine
Devissaguet, Jean‐Philippe
Legrand, Philippe
Barratt, Gillian
description The mouse macrophage cell line RAW 264.7 can be stimulated to produce nitric oxide (NO) by muramyltripeptide cholesterol included within biodegradable poly(D,L‐lactide) nanocapsules (NC MTP‐Chol). The aim of this work was to determine whether one or both of the cytokines transforming growth factor‐beta (TGF‐β) and interleukin‐10 (IL‐10) could be responsible for feedback control seen at high concentrations. Activated RAW 264.7 cells produced TGF‐β1. When exogenous TGF‐β1 was added during stimulation, a dose‐dependent inhibition of NO production was observed when NC MTP‐Chol was used, whereas activation by the soluble muramyl dipeptide (MDP) was not affected. Furthermore, addition of a blocking antibody to TGF‐β arrested the fall in NO production seen at high concentrations of NC MTP‐Chol. Addition of IL‐10 during RAW 264.7 cell activation also reduced NO production; however, in this case, both NC MTP‐Chol and MDP were equally affected. The presence of anti‐IL‐10 antibody during activation significantly increased NO production. J. Leukoc. Biol. 62: 374–380; 1997.
doi_str_mv 10.1002/jlb.62.3.374
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source Oxford University Press Journals All Titles (1996-Current); MEDLINE; Wiley Online Library Journals Frontfile Complete; Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals
subjects Acetylmuramyl-Alanyl-Isoglutamine - analogs & derivatives
Acetylmuramyl-Alanyl-Isoglutamine - chemistry
Acetylmuramyl-Alanyl-Isoglutamine - pharmacology
Adjuvants, Immunologic - pharmacology
Animals
Cell Line
Cholesterol Esters - pharmacology
Enzyme Induction - drug effects
Interleukin-10 - pharmacology
macrophage activation
Macrophage Activation - drug effects
Macrophages - drug effects
Macrophages - metabolism
Mice
muramyl‐dipeptide
nanocapsules
Nitric Oxide - biosynthesis
Nitric Oxide Synthase - metabolism
NO synthase
Phagocytosis - drug effects
Transforming Growth Factor beta - pharmacology
tumor necrosis factor
title Modulation of nitric oxide production in RAW 264.7 cells by transforming growth factor-beta and interleukin-10: differential effects on free and encapsulated immunomodulator
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