Journal: Journal of Neuroinflammation
Article Title: Infiltrating myeloid cell-derived properdin markedly promotes microglia-mediated neuroinflammation after ischemic stroke
doi: 10.1186/s12974-023-02946-z
Figure Lengend Snippet: Properdin knockout ameliorates microglial activation and inflammation in tMCAO mice. a qPCR assessment of differentially expressed inflammatory genes, including Il1a , Il1b , Il4 , Il6 , Il10 , Nos2 , Ccl2 and Tnf, in the ischemic penumbra 1 d and 3 d after tMCAO. n = 5 mice per group. * P < 0.05 versus the sham group, ** P < 0.01 versus the sham group, # P < 0.05 versus the WT group, ## P < 0.01 versus the WT group, one-way ANOVA with Bonferroni post hoc test. b Immunostaining for TMEM119 (green) and Iba1 (red) and 3D-reconstructed images of TMEM119 + Iba1 + microglia 1 d and 3 d after tMCAO. Scale bar: 50 µm. n = 5 mice per group. * P < 0.05 versus the WT group, ** P < 0.01 versus the WT group, unpaired Student’s t test. c Quantification of Iba1 MFI. d Quantification of average branch length, branch numbers and junctions of 3D-reconstructed microglia in the peri-infarct region. e One day after tMCAO, microglia sorted based on the CD45 int and CD11b + strategy were subjected to PCR array analysis. f FACS analysis of IL-1β, TNF-α and IL-6 expression in microglia 1 d after tMCAO. MFI was quantified. n = 5 mice per group. *** P < 0.001 versus the sham group, ## P < 0.01 versus the WT group, one-way ANOVA with Bonferroni post hoc test
Article Snippet: To evaluate the levels of inflammatory factors in microglia in vivo and in vitro, the cells were further incubated with the following antibodies: PE-anti-TNF-α (Rat, 1:200, Thermo Fisher Scientific, OH, USA, Cat# 12-7321-81, RRID:AB_466198), PE-anti-IL-6 (Rat, 1:200, BioLegend, CA, USA, Cat# 504503, RRID:AB_315337) and APC-anti-IL-1β. (Rabbit, 1:500, Cell Signaling Technology, MA, USA, Cat# 31202, RRID:AB_2799001) All the samples were analyzed by a BD LSRFortessa flow cytometer (BD, NJ, USA), and the data were further analyzed using FlowJo software (Ashland, OR, USA, RRID:SCR_008520).
Techniques: Knock-Out, Activation Assay, Immunostaining, Expressing