Journal: Frontiers in Immunology
Article Title: Metabolic Reprograming of Cystic Fibrosis Macrophages via the IRE1α Arm of the Unfolded Protein Response Results in Exacerbated Inflammation
doi: 10.3389/fimmu.2019.01789
Figure Lengend Snippet: ER Stress and UPR activation in CF HBECs. (A) mRNA relative expression of ER stress and UPR markers BiP, IRE1α, ATF6, PERK, XBP1s, XBP1u, ATF4, CHOP, GADD34, and IL-6 in BEAS-2B, CuFi-1, and CuFi-4 cell lines. (B–D) Single cells were gated and used to measure the mean fluorescent intensity of each cell line though flow cytometry; IRE1α (B) and phosphorylated IRE1α (C) protein expression was measured with monoclonal conjugated antibodies (PE, PerCP) in BEAS-2B, CuFi-1, and CuFi-4 cell lines (D) . All antibodies were normalized with their respective isotype controls, in each cell line. (E–G) XBP1s and IL-6 were measured in response to LPS (100 ng/ml) and Tg (300 nM) for 4 h measuring XBP1s mRNA (E), IL-6 mRNA (F) and IL-6 cytokine levels (G) ; when referred, the IRE1α inhibitor, 4 μ8c (50 μM), was used 30 min before each stimulation. All data is presented as mean ± SEM and mRNA data represented by logarithmic scale base 10. Statistical significance was determined using 2way-ANOVA, Dunnett's test (A) , unpaired (D) or paired (E–G) independent student's t -test. * p < 0.05, ** p < 0.01, *** p < 0.001. n = 4 biological replicates for all cell lines.
Article Snippet: CuFi-1 cell line , ATCC , ATCC CRL-4013.
Techniques: Activation Assay, Expressing, Flow Cytometry