Please use this identifier to cite or link to this item: https://doi.org/10.1016/j.biomaterials.2013.06.010
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dc.titleDevelopment of a gene/drug dual delivery system for brain tumor therapy: Potent inhibition via RNA interference and synergistic effects
dc.contributor.authorLei, C.
dc.contributor.authorCui, Y.
dc.contributor.authorZheng, L.
dc.contributor.authorKah-Hoe Chow, P.
dc.contributor.authorWang, C.-H.
dc.date.accessioned2014-10-09T06:45:57Z
dc.date.available2014-10-09T06:45:57Z
dc.date.issued2013-10
dc.identifier.citationLei, C., Cui, Y., Zheng, L., Kah-Hoe Chow, P., Wang, C.-H. (2013-10). Development of a gene/drug dual delivery system for brain tumor therapy: Potent inhibition via RNA interference and synergistic effects. Biomaterials 34 (30) : 7483-7494. ScholarBank@NUS Repository. https://doi.org/10.1016/j.biomaterials.2013.06.010
dc.identifier.issn01429612
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/88756
dc.description.abstractMalignant brain tumors are characterized by three major physiological processes: proliferation, angiogenesis, and invasion. Traditional cytotoxic chemotherapies (e.g. Paclitaxel) control the tumor by blocking growth and proliferation mechanisms, but leave angiogenesis and invasion unchecked. We identified Matrix metalloproteinase-2 (MMP-2), an essential proteinase regulating brain tumor invasion and angiogenesis, as one of the therapeutic target. A designer RNAi plasmid was developed, and complexed with the gene carrier polyethylenimine (PEI), in an effort to specifically suppress MMP-2 expression in tumor cells. The gene and a cytotoxic drug Paclitaxel were then dual-encapsulated in PLGA based submicron implants to achieve a sustained release of both agents. Potent inhibition effects on MMP-2 mRNA and protein expression, invitro cell angiogenesis and invasion were demonstrated both on the PEI/DNA nanoparticles alone, and on the PEI/DNA nanoparticles embedded in microfibers. Most importantly, through invivo test on intracranial xenograft tumor model in BALB/c nude mice, it was proved that the gene/drug dual delivery microfibers are able to impose significant tumor regression compared with single drug delivery microfibers and commercial drug treatment, showing evidence for synergistic therapeutic efficacy. © 2013 Elsevier Ltd.
dc.description.urihttp://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1016/j.biomaterials.2013.06.010
dc.sourceScopus
dc.subjectDrug/gene delivery
dc.subjectIntracranial glioblastoma
dc.subjectMicrofiber
dc.subjectMMPs
dc.subjectRNA interference
dc.typeArticle
dc.contributor.departmentCHEMICAL & BIOMOLECULAR ENGINEERING
dc.description.doi10.1016/j.biomaterials.2013.06.010
dc.description.sourcetitleBiomaterials
dc.description.volume34
dc.description.issue30
dc.description.page7483-7494
dc.description.codenBIMAD
dc.identifier.isiut000322931900028
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