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Title: Paclitaxel delivery from PLGA foams for controlled release in post-surgical chemotherapy against glioblastoma multiforme
Authors: Ong, B.Y.S.
Ranganath, S.H. 
Lee, L.Y. 
Lu, F.
Lee, H.-S.
Sahinidis, N.V.
Wang, C.-H. 
Keywords: Foams
In vivo bio-distribution
Sustained release
Issue Date: Jun-2009
Citation: Ong, B.Y.S., Ranganath, S.H., Lee, L.Y., Lu, F., Lee, H.-S., Sahinidis, N.V., Wang, C.-H. (2009-06). Paclitaxel delivery from PLGA foams for controlled release in post-surgical chemotherapy against glioblastoma multiforme. Biomaterials 30 (18) : 3189-3196. ScholarBank@NUS Repository.
Abstract: Paclitaxel loaded biodegradable poly-(dl-lactic-co-glycolic) acid (PLGA) foams with microporous matrix were fabricated by a novel pressure quenching approach to provide a sustained paclitaxel release. The foams with micropores provided increased surface area to volume ratio and were also implantable for post-surgical chemotherapy applications. The two formulations 5% (w/w) paclitaxel loaded PLGA 85:15 foam (F1) and 10% (w/w) paclitaxel loaded PLGA 50:50 foam (F2), were evaluated in vitro and in vivo. Both the foams were found to provide a paclitaxel release beyond a month in vitro with a near zero-order kinetics and with minimum burst release. Furthermore, apoptosis of C6 glioma cells in vitro demonstrated the benefits of sustained paclitaxel release by the foams in comparison to acute Taxol® exposure. Both the foams exhibited continuous paclitaxel release in an in vivo (subcutaneous) environment up to a month which correlated well with the in vitro release profiles. Bio-distribution results in the rat brain showed paclitaxel penetration at therapeutic levels up to 3 mm into the tissue from the site of foam implantation. Hence these foams could be employed as potential implants for post-surgical chemotherapy against malignant glioma. © 2009 Elsevier Ltd. All rights reserved.
Source Title: Biomaterials
ISSN: 01429612
DOI: 10.1016/j.biomaterials.2009.02.030
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