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Evaluation of selective tumor detection by clinical magnetic resonance imaging using antibody-conjugated superparamagnetic iron oxide.
MedLine Citation:
PMID:  22300621     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Active targeting by monoclonal antibodies (mAbs) combined with nanosize superparamagnetic iron oxide (SPIO) is a promising technology for magnetic resonance imaging (MRI) diagnosis. However, the clinical applicability of this technology has not been investigated using appropriate controls. It is important to evaluate the targeting technology using widely used clinical 1.5-Tesla MRI in addition to the high-Tesla experimental MRI. In this study, we measured mAb-conjugated dextran-coated SPIO nanoparticles (CMDM) in vivo using clinical 1.5-Tesla MRI. MRI of tumor-bearing mice was performed using a simple comparison between positive and negative tumors derived from the same genetic background in each mouse. The system provided significant tumor-targeting specificity of the target tumor. To the best of our knowledge, this is the first report on the specific detection of target tumors by mAb-conjugated SPIO using clinical 1.5-Tesla MRI. Our observations provide clues for reliable active targeting using mAb-conjugated SPIO in clinical applications.
Authors:
Takayoshi Koyama; Mari Shimura; Yuzuru Minemoto; Satoshi Nohara; Sayaka Shibata; Yutaka Iida; Shinki Iwashita; Masakatsu Hasegawa; Tohru Kurabayashi; Hirofumi Hamada; Kenji Kono; Eiichi Honda; Ichio Aoki; Yukihito Ishizaka
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-1-26
Journal Detail:
Title:  Journal of controlled release : official journal of the Controlled Release Society     Volume:  -     ISSN:  1873-4995     ISO Abbreviation:  -     Publication Date:  2012 Jan 
Date Detail:
Created Date:  2012-2-3     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8607908     Medline TA:  J Control Release     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2012. Published by Elsevier B.V.
Affiliation:
Department of Intractable Diseases, Research Institute, National Center for Global Health and Medicine, 1-21-1 Toyama, Shinjuku-ku, Tokyo 162-8655, Japan.
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