Journal: Cell Death & Disease
Article Title: Identification of targetable epigenetic vulnerabilities for uveal melanoma
doi: 10.1038/s41419-025-08295-4
Figure Lengend Snippet: A Mean viability of the three UM cell lines following 72 h treatment with 932 epigenetic modulators at a concentration of 1 μM ( n = 2) relative to the negative control (0.1% DMSO treatment). Hit cut-offs (dashed lines) were determined as the mean percentage viability of the negative controls in each cell line minus three standard deviations. Yellow dashed line is the hit cut-off for MP41 cells (65.8% viability), purple dashed line is the hit cut-off for MP46 cells (74.0% viability), and the green dashed line is the hit cut-off for MP38 cells (58.9% viability). For full list of compounds and average UM cell viabilities, see Supplementary Data . B Radar plot showing the mean difference in percent of cell viability of UM cells caused by 72 h 1 μM treatment with 932 compounds, relative to the DMSO control. Negative values, shown in gray, indicate ineffective compounds leading to greater cell viability than the negative control. The positive values, shown in color, indicate compounds that induced cell death, with higher peaks indicating greater cell death. Compounds are grouped by drug mechanism of action. C Pie charts of the molecular activities of all screened compounds ( n = 932) (left) and the hits identified ( n = 24) (right). D Concentration-response experiments for the 24 hit compounds (10 concentrations, n = 4 per concentration per cell line). Center values represent mean viability, error bars represent standard error of mean (SEM). E Log IC 50 (M) values of the top hit compounds for each cell line. Error bars represent 95% confidence interval. F Log IC 50 (M) of BAP1 mutant cell lines (MP46 and MP38) plotted against the log IC 50 (M) of the BAP1 wildtype cell line (MP41) for each drug treatment.
Article Snippet: Given the global epigenetic changes elicited by BAP1 loss, we performed a comprehensive epigenetic compound screen on UM cells, using a well-characterized drug library consisting of 932 cell-permeable, small-molecule modulators (TargetMol, L1200, July 2022; Supplementary Data ).
Techniques: Concentration Assay, Negative Control, Control, Mutagenesis