Journal: Cancer Research
Article Title: Targeting BCL2 with Venetoclax Enhances the Efficacy of the KRAS G12D Inhibitor MRTX1133 in Pancreatic Cancer
doi: 10.1158/0008-5472.CAN-23-3574
Figure Lengend Snippet: MRTX1133 inhibits the growth of PDAC cells in “low”- but not “high”-confluent collagen cultures. A, PDAC cells (1 × 10 5 ) were grown in floating collagen gels (1.2 mg/mL) for 48 hours to generate “low”-confluent cultures. Depiction of “low”-confluent floating collagen cultures. B, PDAC cell lines (2138, 3213, 1245, PANC1) grown in “low”-confluent collagen cultures were treated with MRTX1133 (0.5 µmol/L) for 8 hours, and the effect on ERK1/2 phosphorylation was analyzed by Western blotting. Blots are representative of at least three biological replicates. C, PDAC cell lines grown in “low”-confluent collagen cultures were treated with DMSO or 0.5 µmol/L MRTX1133 for 72 hours. The cells were imaged at baseline and after 1, 2, and 3 days of treatment, and the relative growth was quantified. Error bars, ± SD; n = 3, unpaired t test. **, P < 0.01; ***, P < 0.001. Scale bar, 100 μm. D, PDAC cells (1 × 10 5 ) were grown in floating collagen gels (1.2 mg/mL) for 96 to 120 hours to generate “high-confluent” cultures. Depiction of “high-confluent” floating collagen cultures. E, PDAC cell lines grown in “high-confluent” collagen cultures were treated with MRTX1133 (0.5 µmol/L) for 8 hours, and the effect on ERK1/2 phosphorylation was analyzed by Western blotting. Blots are representative of at least three biological replicates. F, PDAC cell lines grown in “high-confluent” collagen cultures were treated with DMSO or 0.5 µmol/L MRTX1133 for 72 hours. The cells were imaged at baseline and after 1, 2, and 3 days of treatment, and the relative growth was quantified. Error bars, ± SD; n = 3, unpaired t test. ns, not significant. Scale bar, 100 μm.
Article Snippet: The human PDAC cell line PANC1 was obtained from ATCC (CRL-1469).
Techniques: Phospho-proteomics, Western Blot