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  • Title: Polymeric glabrescione B nanocapsules for passive targeting of Hedgehog-dependent tumor therapy in vitro.
    Author: Ingallina C, Costa PM, Ghirga F, Klippstein R, Wang JT, Berardozzi S, Hodgins N, Infante P, Pollard SM, Botta B, Al-Jamal KT.
    Journal: Nanomedicine (Lond); 2017 Apr; 12(7):711-728. PubMed ID: 28322108.
    Abstract:
    AIM: With the purpose of delivering high doses of glabrescione B (GlaB) to solid tumors after systemic administration, long-circulating GlaB-loaded oil-cored polymeric nanocapsules (NC-GlaB) were formulated. MATERIALS & METHODS: Synthesis of GlaB and its encapsulation in nanocapsules (NCs) was performed. Empty and GlaB-loaded NCs were assessed for their physico-chemical properties, in vitro cytotoxicity and in vivo biodistribution. RESULTS: GlaB was efficiently loaded into NCs (∽90%), which were small (∽160 nm), homogeneous and stable upon storage. Further, GlaB and NC-GlaB demonstrated specific activities against the cancer stem cells. Preliminary studies in tumor-bearing mice supported the ability of NC to accumulate in pancreatic tumors. CONCLUSION: This study provides early evidence that NC-GlaB has the potential to be utilized in a preclinical setting and justifies the need to perform therapeutic experiments in mice.
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