Figure 4. Antitumor effects of SAR405838 in DDLPS xenograft models.
A) mRNA expression levels from DDLPS xenografts following SAR405838 treatment. B) Protein expression levels of selected genes in response to time (6–72 h) and a single dose (100 and 200 mg/kg, p.o.) of SAR405838 or vehicle. Data represents mean ± SEM, n=3. Oral administration of SAR405838 (50, 100 or 200 mg/kg) or vehicle control in nude mice (n=7–8 per group) bearing s.c. Lipo863 (C) and Lipo246 (D) xenograft tumors, which significantly decreased tumor volumes (± SEM) and (E) tumor weights (mean tumor weight at termination for each group of mice was recorded ± SEM; t-test: *=P<0.05, **=P<0.01, ***=P<0.001). (F) 200 mg/kg/wk was orally administered to Lipo246 xenograft bearing mice (n=5); robust in vivo antitumor activity was seen, and after two treatments tumors were completely eradicated in mice.
