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Chondroitin Sulphate Decorated Nanoparticulate Carriers of 5-Fluorouracil: Development and In Vitro Characterization

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The present study investigates prospective of tailored nanoparticles as vectors to provide improved therapeutic efficacy of encapsulated anti-cancer drug 5-FU. Condritin Sulphate (CS) conjugated PLGA nanoparticles were prepared using PEG-bis-amine and adipic dihydrazide as spacers and loaded with an anti-cancer drug 5-FU (CS-PEG-PLGA-FU and CS-ADH-PLGA-FU). The formulations were then compared with non CS-anchored monomethoxy(polyethylene glycol) (MPEGPLGA-FU) nanoparticles. Nanoparticlulate systems were further characterized by FTIR, NMR, TEM studies and particle size/polydispersity index (PDI) analysis. DSC and XRD were also performed to assess the nature of 5-FU inside the nanoparticles. The nanoparticles prepared using amphiphilic block copolymer CS-PEG-PLGA were able to sustain the release of 5-FU up to 48 h whereas those of CS-ADH-PLGA and MPEG-PLGA released the drug up to 24 h. The CSPEG-PLGA-FU nanoparticles were found to be least haemolytic when compared to free drug, CS-ADH-PLGA-FU and MPEG-PLGA-FU nanoparticles. Cytotoxicity studies were performed on MCF-7/MDA-MD 231 breast cancer cells. PLGA nanoparticles exhibited more potent cytotoxic effect on MCF-7/MDA-MD 231 cells than free doxorubicin. Further, enhanced cytotoxicity and lower hemolytic potential of CS-PEG-PLGA-FU nanoparticles suggest a potential application in cancer chemotherapy.
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Keywords: 5-FLUOROURACIL; CHONDROITIN SULPHATE; PLGA; TARGETED DRUG DELIVERY; TUMOR

Document Type: Research Article

Publication date: August 1, 2010

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  • Journal of Biomedical Nanotechnology (JBN) is a peer-reviewed multidisciplinary journal providing broad coverage in all research areas focused on the applications of nanotechnology in medicine, drug delivery systems, infectious disease, biomedical sciences, biotechnology, and all other related fields of life sciences.
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