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. 2008 Jul 1;99(1):118–125. doi: 10.1038/sj.bjc.6604465

Figure 7.

Figure 7

p53 function is impaired in stromal cells from PC3 and TRAMP prostate tumours. (A) Both PC3SC and TRAMPSC had a fibroblast-like morphology (a) and uniformly expressed FSP-1 (b). (B) After treatment with etoposide (10 μM, 8 h) or vincristine (1 nM, 24 h), p53 accumulation was diminished in TRAMPSC and PC3SC compared to normal SkSC (a). Western blotting for pSER15 and pSER20 after vincristine (b) (1 nM, 24 h) or etoposide (8 h) treatment (c). Blots were striped and re-probed with p53 or β-actin antibodies. (C) Viabilities of TRAMPSC and PC3SC after treatment with etoposide (a) or vincristine (b). Cells were plated in triplicate and treated with each drug for 72 h before dispersing in trypsin and counting. Asterisk (*) indicates results are statistically significant (P<0.05) by Student's t-test when comparing SkSC vs PC3 SC and a dagger (†) when comparing SkSc vs TRAMP SC.