Journal: Frontiers in Pharmacology
Article Title: Euphorbia Factor L2 ameliorates the Progression of K/BxN Serum-Induced Arthritis by Blocking TLR7 Mediated IRAK4/IKKβ/IRF5 and NF-kB Signaling Pathways
doi: 10.3389/fphar.2021.773592
Figure Lengend Snippet: EFL2 reduced IL-1β and IL-6 production via robustly inhibiting TLR7-IKKβ-IRF5 signalling pathway (A-C) Western blot bands (A) and quantification of p -IRAK4, IRAK4 (B) , p -IKKβ and IKKβ expression (C) in RAW264.7 cells (D-F) Western blot bands (D) and effects of EFL2 on R837-induced IRF5 phosphorylation (E) and IRF5 expression in cytoplasm and nucleus (F) (G) IRF5 localization determined by immunofluorescence staining (Magnification: ×40) (H) IRF5 expression in cytoplasm and nucleus after IRF5 overexpression (I) Quantification of IRF5 expression after transfection (J, K) The levels of IL-1β (J) and IL-6 (K) produced by RAW264.7 cells before and after IRF5 overexpression (n = 3 for each group in an independent experiment). Data represent the mean values ±SEM of three independent experiments. * p < 0.05, ** p < 0.01, *** p < 0.001 were considered as significant.
Article Snippet: The antibodies used in the experiments were as follows: rabbit anti-mouse IKKα/β polyclonal antibody (1:1,000, Abways, China), rabbit anti-mouse IκBα polyclonal antibody (1:1,000, Abgent, China), rabbit anti-mouse p65 polyclonal antibody (1:1,000, Abgent, China), rabbit anti-mouse phosphorylated IKKα (Ser176)/β (Ser177) (1:1,000, Abways, China), rabbit anti-mouse phosphorylated IκBα (1:1,000, Abcam, United States), rabbit anti-mouse phosphorylated p65 (1:1,000, Abcam, United States), rabbit anti-mouse IRAK4 polyclonal antibody (1:1,000, Proteintech, United States), rabbit anti-mouse phosphorylated IRAK4 (Thr345/Ser346) (1:1,000, Affinity, United States), rabbit anti-mouse IKKβ polyclonal antibody (1:1,000, Abbkine, United States), rabbit anti-mouse phosphorylated IKKβ (Ser177) (1:1,000, Abways, China), rabbit anti-mouse IRF5 polyclonal antibody (1:1,000, Immunoway, United States), rabbit anti-mouse phosphorylated IRF5 (Ser437) (1:1,000, Affinity, United States), anti-mouse actin monoclonal antibody (1:20,000, Transgen, China) and rabbit anti-mouse LaminB monoclonal antibody (1:5,000, Abways, China).
Techniques: Western Blot, Expressing, Phospho-proteomics, Immunofluorescence, Staining, Over Expression, Transfection, Produced