Thioglycollate-elicited Peritoneal Macrophages Preparation and Arginase Activity Measurement in IL-4 Stimulated Macrophages

Macrophages are an essential cell population of innate immunity that plays important roles in inflammatory processes. Two main different phenotypes have been described with opposing activities: The classically activated macrophages (M1) and the alternatively activated macrophages (M2). Alternative a...

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Published in:Bio-protocol 2015, Vol.5 (17)
Main Authors: Jim nez-Garc a, Lidia, Herr nz, Sandra, Luque, Alfonso, Hortelano, Sonsoles
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Luque, Alfonso
Hortelano, Sonsoles
description Macrophages are an essential cell population of innate immunity that plays important roles in inflammatory processes. Two main different phenotypes have been described with opposing activities: The classically activated macrophages (M1) and the alternatively activated macrophages (M2). Alternative activation of mouse macrophages can be induced by type 2 cytokines such as IL-4 and it is characterized by the regulation of the L-arginine metabolism. M2 macrophages convert arginine to ornithine and urea through the action of Arginase-1. Here we described a method for the isolation of peritoneal macrophages from thioglycollate-elicited mice and alternative activation by stimulation with IL-4. Intraperitoneal injection of thioglycollate elicits large numbers of macrophages into peritoneal cavity.
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title Thioglycollate-elicited Peritoneal Macrophages Preparation and Arginase Activity Measurement in IL-4 Stimulated Macrophages
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