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In vitro polarization of bovine macrophages

Puech Carinne, Chantal Isabelle, Rodrigues Valérie, Berthier David. 2016. In vitro polarization of bovine macrophages. In : Xth Symposium of the French network for domestic animal immunology = 10es Journées du réseau français Immunologie des Animaux Domestiques (IAD2016). ANSES. Maisons-Alfort : ANSES, Résumé, p. 45. Symposium on the French Network for Domestic Animal Immunology (IAD 2016). 10, Ploufragan, France, 17 March 2016/18 March 2016.

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Abstract : Macrophages are major cells of the innate immunity. Macrophages derived from monocyte precursors undergo specific differentiation depending on the local tissue environment. Similar to the T helper type 1 and T helper type 2 polarization, two distinct states of polarized activation for macrophages have been defined in mouse and humans: the classically activated (M1) macrophage and the alternatively activated (M2) macrophage phenotypes. On the other hand, these different patterns of macrophage differentiation drive adaptive responses during the stages of infection, hence restraining inflammation and favoring tissue repair. In vitro generation and characterization of these subpopulations are essential to perform relevant studies understanding the host-pathogen interactions. Currently, several in vitro differentiation and polarization protocols are used to induce M1 or M2 mouse and human macrophages but none have been developed for the bovine species. We developed a method for in vitro differentiation and polarization of bovine macrophages using GM-CSF and IFNg to induce M1, and IL-4 to induce M2 phenotype. We characterized M1/M2 macrophages by specific morphology, production of cytokines (IL-10, IL-12, TNF-a), NO production, and phenotypic markers such as CD206 and TLR2. (Résumé d'auteur)

Classification Agris : L50 - Animal physiology and biochemistry
L73 - Animal diseases

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Source : Cirad-Agritrop (https://agritrop.cirad.fr/581134/)

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