体外研究
PHPS1 (30 μM; 6 days) inhibits proliferation of human tumor cells. PHPS1 (5-20 μM; 5-360 minutes) inhibits Erk1/2 but not Akt and Stat3 phosphorylation in a dose-dependent manner. Cell Viability Assay Cell Line: Human cancer cell lines MDA-MB-435, HCT-116 (colon carcinoma), HCT-15 (colon carcinoma), PC-3 (prostate carcinoma), HT-29 (colon carcinoma), NCI-H661 (lung carcinoma), and Caki-1 (kidney carcinoma) Concentration: 30 μM Incubation Time: 6 days Result: Resulted in a reduction in cell number of between 0% (Caki-1) to 74% (HT-29). Western Blot Analysis Cell Line: Madin-Darby canine kidney (MDCK) cells Concentration: 5, 10, 20 μM Incubation Time: 5, 15, 60, 120, 360 minutes Result: Inhibited HGF/SF (1 unit/mL)-induced phosphorylation and thus activation of Erk1/2 over a time period of 15 min to 6 h. In contrast, transient phosphorylation of Erk1/2 after 5 min was not affected. Exhibited no effect on HGF/SF-induced activation of PI3K/Akt or Stat3.