Journal: NAR Cancer
Article Title: Ribosome biogenesis is increased in hepatocellular carcinoma and represents a potential therapeutic target
doi: 10.1093/narcan/zcaf058
Figure Lengend Snippet: Nucleolar-targeting compounds inhibit nucleolar activity and induce selective DNA damage. ( A ) Representative images of EU incorporation (green) in THLE-3, PLC/PRF/5, and SNU-449 cells 24 h after treatment with four anti-cancer drugs targeting the nucleolus: CX-5461, BMH-21, Oxaliplatin, and JP-1302, or targeted therapy Sorafenib. Cells were treated with DMSO as control and were stained with DAPI (blue) and Pol II (yellow). ( B ) Mean nucleolar EU intensity per nucleus as a readout for rDNA transcription in THLE-3, PLC/PRF/5, and SNU-449 cells 24 h after treatment with four anti-cancer drugs targeting the nucleolus: CX-5461, BMH-21, Oxaliplatin, and JP-1302, or targeted therapy Sorafenib. Cells were treated with DMSO as control. The graph depicts one representative biological replicate ( n = 3), with data points representing individual cells, and the median indicated by the red line. A Kruskal–Wallis test was applied to assess differences between groups for the replicates combined, and statistical significance is indicated by numerical P -values. ( C ) Representative images of nuclear 53BP1 and γH2AX foci accumulation in THLE-3, PLC/PRF/5, and SNU-449 cells 24 h after treatment with four anti-cancer drugs targeting the nucleolus: CX-5461, BMH-21, Oxaliplatin, and JP-1302, or targeted therapy Sorafenib. Cells were treated with DMSO as control, and stained with DAPI (blue), 53BP1 (yellow), and γH2AX (red). ( D ) Fold change of nuclear 53BP1 foci per cell relative to DMSO. Individual points in the graph represent biological replicates ( n = 3). The graph depicts the mean ± SD and statistical significance was assessed by one sample t test and indicated by numerical P -values. ( E ) Fold change of nuclear γH2AX foci per cell relative to DMSO otherwise as in panel (D).
Article Snippet: Human osteosarcoma U2OS cells (#HTB-96), HCC cell lines PLC/PRF/5 (#CRL-8024), SNU-449 (#CRL-2234), and normal liver epithelial cells THLE-3 (#CRL-3583) were purchased from the American Type Culture Collection.
Techniques: Activity Assay, Control, Staining