國家衛生研究院 NHRI:Item 3990099045/8841
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    Please use this identifier to cite or link to this item: http://ir.nhri.org.tw/handle/3990099045/8841


    Title: Targeting microbubbles-carrying TGFbeta1 inhibitor combined with ultrasound sonication induce BBB/BTB disruption to enhance nanomedicine treatment for brain tumors
    Other Titles: Targeting microbubbles-carrying TGFβ1 inhibitor combined with ultrasound sonication induce BBB/BTB disruption to enhance nanomedicine treatment for brain tumors
    Authors: Chen, YC;Chiang, CF;Wu, SK;Chen, LF;Hsieh, WY;Lin, WL
    Contributors: Institute of Biomedical Engineering and Nanomedicine
    Abstract: The clinical application of chemotherapy for brain cancer tumors remains a challenge due to difficulties in the transport of therapeutic agents across the blood–brain barrier/blood–tumor barrier (BBB/BTB). In this study, we developed des-octanoyl ghrelin-conjugated microbubbles (GMB) loaded with TGFβ1 inhibitor (LY364947) (GMBL) to induce BBB/BTB disruption for ultrasound (US) sonication with GMBL. The in-vitro stability study showed that GMB was pretty stable over one month. The in-vivo study showed that the accumulation of superparamagnetic iron oxide nanoparticles (SPION) in the sonicated tumor was significantly higher for focused US sonication in the presence of GMBL, indicating that GMBL/US can locally disrupt BBB/BTB to promote vascular permeability of nanoparticles. In addition, the combination of folate-conjugated polymersomal doxorubicin (FPD) and GMBL/US (FPD + GMBL/US) achieved the best anti-glioma effect and significant improvement in the overall survival time for brain tumor-bearing mice. When combined with focused US, GMBL facilitated local BBB/BTB disruption and simultaneously released LY364947 to decrease the pericyte coverage of the endothelium at the targeted brain tumor sites, resulting in enhanced accumulation and antitumor activity of FPD. The overall results indicate that GMBL/US owns a great potential for non-invasive targeting delivery of nanomedicine across the BBB to treat central nervous system (CNS) diseases.
    Date: 2015-08-10
    Relation: Journal of Controlled Release. 2015 Aug 10;211:53-62.
    Link to: http://dx.doi.org/10.1016/j.jconrel.2015.05.288
    JIF/Ranking 2023: http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=NHRI&SrcApp=NHRI_IR&KeyISSN=0168-3659&DestApp=IC2JCR
    Cited Times(WOS): https://www.webofscience.com/wos/woscc/full-record/WOS:000357049800007
    Cited Times(Scopus): https://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=84930938169
    Appears in Collections:[Others] Periodical Articles

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