Journal: The Journal of Biological Chemistry
Article Title: Elongator is required for pattern recognition receptor and type I interferon signaling in macrophages
doi: 10.1016/j.jbc.2025.110916
Figure Lengend Snippet: Impaired LPS-IFN I signalling axis in Elp3 −/− BMDMs . A , schematic of LPS- IFN-I signalling axis. Figure created in BioRender ( B – K ) Label free quantification intensity values detected by mass spectrometry in WT and Elp3 −/− cells stimulated for 0, 6 or 12 h with LPS for peptides from transcription factor proteins IRF3 ( B ), IRF5 ( C ), IRF7 ( D ), IRF9 ( E ), RELA ( F ), NFKB1 ( G ), NFKB2 ( H ), STAT1 ( I ), STAT3 ( J ) and STAT6 ( K ). ND, not detected. Data are mean ± SD for quadruplicate (or triplicate for WT 0 h sample) measurements. ∗ p < 0.05 compared to WT, based on Mann-Whitney test. L – N , WT and Elp3 −/− cells were stimulated with LPS (100 ng/ml) for 3, 6 and 24 h. Ifnb ( L ), Irf7 ( M ) and Ifna ( N ) mRNA were assayed by qRT-PCR, expressed relative to the untreated WT control and normalized to the housekeeping gene β-actin. Data are mean ± SD of three independent experiments. Data significance was tested with a 2-way ANOVA using Šídák's multiple comparisons test. ∗ p < 0.05 and ∗∗ p < 0.0001 compared to WT. O , cells were stimulated with LPS for the indicated times and supernatants assayed by ELISA for IFN-β. Data are mean ± SD for three independent experiments, each performed on three WT or Elp3 −/− clones in triplicate. ∗∗∗ p < 0.001. LPS, lipopolysaccharide.
Article Snippet: ELISA plates were coated with a monoclonal rat anti-mouse IFNβ capture antibody (Santa Cruz, Cat#SC-57201) in carbonate buffer overnight at 4 °C.
Techniques: Quantitative Proteomics, Mass Spectrometry, MANN-WHITNEY, Quantitative RT-PCR, Control, Enzyme-linked Immunosorbent Assay, Clone Assay