Journal: bioRxiv
Article Title: YAP/TEAD drives treatment-induced adaptive immunosuppression in EGFR-mutant lung cancer
doi: 10.64898/2026.01.22.701073
Figure Lengend Snippet: A) Experimental set-up to generate DTP cells, collection of CM, and exposure to monocytes and macrophages. B) HCC827 cells expressing pLEX307-FUCCI cell cycle reporter were treated with either DMSO, 100 nM osimertinib alone, or in combination with 30 nM trametinib for 10 days. C) THP-1 cells were treated as in (B), and the expression of M2 marker genes (CD163 and MRC1/CD206) was analyzed with RT-qPCR. D) CM was collected as in (B), with the addition of either short (48 h) or long (13 days) drug holidays, followed by THP-1 incubation as in (C). E) CD14⁺ monocyte chemotaxis toward CM from DMSO- or osimertinib/trametinib–treated cancer cells. Chemotaxis was measured using Incucyte live-cell imaging. Data shown as a percentage of cells migrated after 24 hours. F) RNA-sequencing of monocyte-derived macrophages treated according to (A), with M1 and M2 gene set expression scored relative to expression of all genes. G) GSEA of REACTOME pathways in monocyte-derived macrophages treated as in (F). H) Relative expression of genes driving the enrichment of binding and uptake of ligands by scavenger receptors -gene set (G). I) Flow cytometry analysis of cell surface expression of CD163 in monocytes and monocyte-derived macrophages (J) exposed to DTP CM. DTP = drug-tolerant persister cells, achieved with osimertinib/trametinib treatment for 12 days, CM = conditioned medium, GSEA = gene set enrichment analysis. Data shown as mean ± SD in C and D. One-way ANOVA (C, D) or paired t-test (E, F, I, J) was used to assess statistical significance. ***, P-value <0.001; **, P-value <0.01; *, P-value < 0.05
Article Snippet: The following reagents were used to determine gene expression levels; Taqman 2X Universal master mix (cat# 4440047), and 20X gene expression assays GAPDH (Hs02758991_g1), ACTB (Hs99999903_m1), TBP (Hs00427620_m1), MRC1/CD206 (Hs00267207_m1), and CD163 (Hs00174705_m1).
Techniques: Expressing, Marker, Quantitative RT-PCR, Incubation, Chemotaxis Assay, Live Cell Imaging, RNA Sequencing, Derivative Assay, Binding Assay, Flow Cytometry