Abstract
Docetaxel, an advanced taxoid, has been widely used as an anti-mitotic agent, but further augmentation of its properties is still required, including improvement in low aqueous solubility. Herein, we report the development of bio-eliminable low molecular weight methylcellulose-based surfactant-free injectable formulation for the delivery of docetaxel. Crude methylcellulose, a hydrophobically modified cellulose derivative, was hydrolyzed by an enzymatic degradation method to obtain low molecular weight methylcellulose (LMwMC). Docetaxel was successfully loaded in micelles with small particle sizes high drug loading and sustained release profile. The in vivo anti-cancer effects of intravenously injected nanoparticle systems in B16F10 melanoma xenograft mice were evaluated and demonstrated a significantly enhanced therapeutic effect with the docetaxel-LMwMC micellar aggregates compared to a commercially available docetaxel, Taxotere®. Surfactant-free solubilization of docetaxel could be a promising delivery method for effective insoluble drug delivery for anti-tumor efficacy.
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