Research Article

Monitoring the Early Response of Fulvestrant Plus Tanshinone IIA Combination Therapy to Estrogen Receptor-Positive Breast Cancer by Longitudinal 18F-FES PET/CT

Figure 1

Experimental design for treatment protocols, 18F-FES microPET/CT imaging, and immunohistochemistry staining. Vehicle (0.9% sodium chloride, 50 μl/mouse/week, s.c.), Tan IIA (30 mg/kg, every other day, injected via tail vein), FUL (250 mg/kg, weekly, s.c.), and FUL + Tan IIA combination therapy. The entire period of treatment was 21 days. •: 18F-FES microPET/CT imaging; IHC staining of ERα.