PMID: 29762983Feb 1, 2017Paper

Interferon regulatory factor 5(IRF5) regulates the differentiation of bone marrow-derived macrophages in mice

Xi bao yu fen zi mian yi xue za zhi = Chinese journal of cellular and molecular immunology
Kang SunJian-Xin Zhang

Abstract

To investigate the expression differences of interferon regulatory factor 5( IRF5) between M1 and M2 macrophages derived from mouse bone marrow and the effects of small interfering RNA targeting IRF5 gene( IRF5siRNA) on macrophage differentiation. With the treatment of IFN-γ and lipopolysaccharide( LPS),mouse bone marrow-derived macrophages were differentiated into M1 macrophages; while with the treatment of IL-4,mouse bone marrow-derived macrophages were differentiated into M2 macrophages. Differentiation efficiency was measured by flow cytometry. The expressions of IRF5,IL-12,tumor necrosis factor-α( TNF-α),inducible nitric oxide synthase( i NOS),arginase 1( Arg1),macrophage mannose receptor( MMR) mRNAs in M1 and M2 macrophages were analyzed by quantitative real-time PCR( RT-PCR). Furthermore,macrophages were infected with IRF5 siRNA,and then the mRNA expressions of the above proteins in M1 and M2 were tested by RT-PCR,and the protein expressions were detected by Western blotting.The results were analyzed to evaluate the polarization state of macrophages. The differentiation proportion of macrophages measured by flow cytometry was 81. 7%. RT-PCR showed that the expressions of IRF5,IL-12,i NOS mRNAs were obviously higher in M1...Continue Reading

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