Does Thermosensitive Liposomal Vinorelbine Improve End-Point Survival after Percutaneous Radiofrequency Ablation of Liver Tumors in a Mouse Model?

Radiology
Song WangWei Yang

Abstract

Purpose To investigate the role of thermosensitive liposome-encapsulated vinorelbine (Thermo-Vin) in combined radiofrequency (RF) ablation of liver tumors. Materials and Methods Approval from the institutional animal care and use committee was obtained before this study. First, the anticancer efficacy of Thermo-Vin was assessed in vitro (H22 cells) for 72 hours at 37°C or 42°C. Next, 203 H22 liver adenocarcinomas were implanted in 191 mice for in vivo study. Tumors were randomized into seven groups: (a) no treatment, (b) treatment with RF ablation alone, (c) treatment with RF ablation followed by free vinorelbine (Free-Vin) at 30 minutes, (d) treatment with RF ablation followed by empty liposomes (Empty-Lip+RF), (e) treatment with RF ablation followed by Thermo-Vin (5 mg/kg), (f) treatment with RF ablation followed by Thermo-Vin (10 mg/kg), and (g) treatment with RF ablation followed by Thermo-Vin (20 mg/kg). Tumor destruction areas and pathologic changes were compared for different groups at 24 and 72 hours after treatment. Kaplan-Meier analysis was used to compare end-point survival (tumor < 30 mm in diameter). Additionally, the effect of initial tumor size on long-term outcome was analyzed. Results In vitro, both Free-Vin an...Continue Reading

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Citations

Sep 8, 2018·Pharmaceutics·Elisabetta MazzottaRita Muzzalupo
Nov 6, 2018·Korean Journal of Radiology : Official Journal of the Korean Radiological Society·Tae-Hyung KimJeong Min Lee
Jun 18, 2021·Nano-micro Letters·Luisa Racca, Valentina Cauda

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