Journal: Molecular Cancer
Article Title: c-Rel drives pancreatic cancer metastasis through fibronectin-integrin signaling-induced isolation stress resistance and EMT
doi: 10.1186/s12943-025-02486-5
Figure Lengend Snippet: A CUT&RUN analysis to assess c-Rel genomic binding. Fluorescence microscopy imaging of the Rel-pAY15 stably transfected A2929 cell line. c-Rel is tagged with GFP. Lepto-B: Leptomycin-B. Heatmap showing the genomic regions differentially bound by c-Rel. The peak numbers for the genomic locations where c-Rel is bound are given in a pie chart. The CUT&RUN and RNAseq tracks display the expression levels of the Fn1 and Itgb3 genes in mock-transfected (pAY15), c-Rel-overexpressing (Rel-pAY15), and degron-induced c-Rel-overexpressing A2929 (Rel-pAY15 + 5phIAA) cell lines. B Normalized RT‒qPCR analysis for the selected targets. Stably transfected cells are cultured under adherent (2D) or nonadherent conditions (3D) (A2929 c-Rel expression factor, Itgb3 p= 0.0006 , ItgaV p=0.0001 , Itga5 p=0.0069 , total Fn1 p=0.0014 , EDA+ Fn1 p<0.0001 , EDB+ Fn1 p=0.0004; for A2770 c-Rel expression factor Itgb3 p=0.0011 , ItgaV p=0.0032 , Itga5 p=0.0014 , total Fn1 p=0.0027 , EDA+ Fn1 p<0.0001 , EDB+ Fn1 p<0.0001). C Overrepresentation analysis performed by Enrichr for Rel-pAY15 cells. The analysis is performed only with the genes that were differentially expressed in Rel-pAY15 cells compared with those in pAY15-only cells or in Rel-pAY15-induced degron cells. From each set, only the top 5 hits are selected on the basis of their combined scores. D Correlation of the REL with FN1 and ITGB3 mRNA expression in primary tumor samples from the TCGA_PAAD cohort. The graphs are adapted with data from the UCSC-Xena TCGA PAAD dataset. The Pearson r correlations are displayed in the figure for each target. E Patient TMA H-score correlation plots for c-Rel versus ITGB3 or FN1. F) Kaplan–Meier survival curves for patients in the TCGA dataset, divided by the median expression level, on the basis of either FN1 or ITGB3 expression. OS: overall survival, n= 178; DSS: disease-specific survival, n=172; DFI: disease-free interval, n=69; PFI: progression-free interval, n=178. The graphs are adapted with data from the UCSC-Xena TCGA PAAD dataset. G Patient TMA overall survival curves based on ITGB3 and FN1 H-scores. Statistical analysis is performed with the log-rank (Mantel‒Cox) test. Unless otherwise indicated, for all analyses, two-way ANOVA is used. Šídák's multiple comparison tests between genotypes are shown in the figures
Article Snippet: pAY15 (OsTIR1(F74G) mAID-EGFP-NLS) was a gift from Masato Kanemaki (Addgene plasmid # 140534; http://n2t.net/addgene:140534 ; RRID: Addgene_140534) [ ].
Techniques: Binding Assay, Fluorescence, Microscopy, Imaging, Stable Transfection, Transfection, Expressing, Cell Culture, Comparison