Glabrescione-B and Pancreatic-Neoplasms

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.. 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.. 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.. 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.

Topics: Animals; Antineoplastic Agents; Cell Line, Tumor; Cell Survival; Chromones; Drug Carriers; Female; Hedgehog Proteins; Heterografts; Humans; Mice; Mice, SCID; Molecular Targeted Therapy; Nanocapsules; Neoplasm Transplantation; Neoplastic Stem Cells; Pancreatic Neoplasms; Particle Size; Polyethylene Glycols; Surface Properties; Tissue Distribution