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    S-Nitrosated human serum albumin dimer as novel nano-EPR enhancer applied to macromolecular anti-tumor drugs such as micelles and liposomes

    Access Status
    Fulltext not available
    Authors
    Kinoshita, R.
    Ishima, Y.
    Ikeda, M.
    Kragh-Hansen, U.
    Fang, J.
    Nakamura, H.
    Chuang, Victor
    Tanaka, R.
    Maeda, H.
    Kodama, A.
    Watanabe, H.
    Maeda, H.
    Otagiri, M.
    Maruyama, T.
    Date
    2015
    Type
    Journal Article
    
    Metadata
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    Citation
    Kinoshita, R. and Ishima, Y. and Ikeda, M. and Kragh-Hansen, U. and Fang, J. and Nakamura, H. and Chuang, V. et al. 2015. S-Nitrosated human serum albumin dimer as novel nano-EPR enhancer applied to macromolecular anti-tumor drugs such as micelles and liposomes. Journal of Controlled Release. 217: pp. 1-9.
    Source Title
    Journal of Controlled Release
    DOI
    10.1016/j.jconrel.2015.08.036
    ISSN
    0168-3659
    School
    School of Pharmacy
    URI
    http://hdl.handle.net/20.500.11937/14345
    Collection
    • Curtin Research Publications
    Abstract

    © 2015 Elsevier B.V. All rights reserved. The enhanced permeability and retention (EPR) effect is a unique phenomenon of solid tumors, and it can serve as a basis for the development of macromolecular anticancer therapy. We have previously found that recombinant human serum albumin dimer, and especially its S-nitrosated form (SNO-HSA-Dimer), is an enhancer of the EPR effect. In this study, we investigated the influence of SNO-HSA-Dimer on the anti-tumor effect of two types of macromolecular anti-tumor drugs, namely N-(2-hydroxypropyl)methacrylamide polymer conjugated with zinc protoporphyrin, which forms micelles and can be used for fluorescence studies. The other was PEGylated liposomal doxorubicin (Doxil), a typical example of a stealth liposome approved for medical usage. In mice having C26 tumors with highly permeable vasculature, SNO-HSA-Dimer increases tumor accumulation of the drugs by a factor 3-4 and thereby their anti-tumor effects. Experiments with Evans blue revealed increased EPR effect in all parts of the tumor. Furthermore, SNO-HSA-Dimer improves the anti-metastatic effects of Doxil and reduces its minor uptake in non-tumorous organs such as liver and kidney. Tumor accumulation of Doxil in B16 tumors, which are characterized by a low permeable vasculature, increased even more (6-fold) in the presence of SNO-HSA-Dimer, and the improved accumulation lead to decreased tumor volume and increased survival of the animals. The administration of SNO-HSA-Dimer itself is safe, because it has no effect on blood pressure, heart rate or on several biochemical parameters. The present findings indicate that SNO-HSA-Dimer is promising for enhancing the EPR effect and consequently the specific, therapeutic effects of macromolecular anticancer drugs.

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