Anti-CD24 Nano-targeted Delivery of Docetaxel for the Treatment of Prostate Cancer

Nanoparticle (NP)-mediated, noninvasively targeted and image-guided therapies have potential to improve efficacy and safety of cancer therapeutics. We report synthesis and use of poly(lactide-co-glycolide)-polyethylene glycol (PLGA-PEG) NPs for targeted delivery of docetaxel. We synthesized docetaxel encapsulated NPs conjugated to anti-CD24 (for targeting) and/or an optical probe (for tracking) and evaluated efficacy in a prostate cancer mouse model. We observed preferential accumulation of anti-CD24 conjugated NPs (encapsulating docetaxel) compared to the non-conjugated NPs 24hours after a single injection into luciferase-expressing PC3M prostate cancer tumor. In the same mouse model, we found significant (P<0.01) accumulation of docetaxel (~10-fold higher) in tumor after treatment with PLGA-PEG NPs encapsulating docetaxel and conjugated to anti-CD24 compared to non-conjugated NPs. Enhanced accumulation was associated with reduced tumor mass and tumor viability. These data support the potential impact of nano-targeted delivery of chemotherapy in enhancing the differential tumor delivery and anticancer efficacy in prostate cancer.

Nanomedicine : nanotechnology, biology, and medicine. 2016 Aug 23 [Epub ahead of print]

Dhruba J Bharali, Thangirala Sudha, Huadong Cui, Badar M Mian, Shaker A Mousa

The Pharmaceutical Research Institute, Albany College of Pharmacy and Health Sciences, Rensselaer, NY, USA., Division of Urology, Albany Medical College, Albany, NY, USA., The Pharmaceutical Research Institute, Albany College of Pharmacy and Health Sciences, Rensselaer, NY, USA. Electronic address: .

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