Document Detail


Near-infrared fluorescent labeled peptosome for application to cancer imaging.
MedLine Citation:
PMID:  18163535     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Nonionic amphiphilic copolypeptides, which were composed of hydrophilic poly(sarcosine) and hydrophobic poly(gamma-methyl L-glutamate) blocks, were synthesized with varying chain lengths of the blocks. The polypeptides having a suitable hydrophilic and hydrophobic balance were found to form vesicular assemblies of 100 nm size in buffer, which was evidenced by the TEM observation, the DLS analysis, and the encapsulation experiment. The genuine peptide vesicles, peptosomes, were labeled with a near-infrared fluorescence (NIRF) probe. In vivo retention in blood experiment showed long circulation of the peptosome in rat blood as stable as the PEGylated liposome. NIRF imaging of a small cancer on mouse by using the peptosome as a nanocarrier was successful due to the EPR effect of the peptosome. Peptosome is shown here as a novel excellent nanocarrier for molecular imaging.
Authors:
Hiroki Tanisaka; Shinae Kizaka-Kondoh; Akira Makino; Shotaro Tanaka; Masahiro Hiraoka; Shunsaku Kimura
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Publication Detail:
Type:  Journal Article     Date:  2007-12-29
Journal Detail:
Title:  Bioconjugate chemistry     Volume:  19     ISSN:  1043-1802     ISO Abbreviation:  Bioconjug. Chem.     Publication Date:  2008 Jan 
Date Detail:
Created Date:  2008-01-17     Completed Date:  2008-04-03     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9010319     Medline TA:  Bioconjug Chem     Country:  United States    
Other Details:
Languages:  eng     Pagination:  109-17     Citation Subset:  IM    
Affiliation:
Department of Material Chemistry, Graduate School of Engineering, Kyoto University, Kyoto-Daigaku-Katsura, Nishikyo-ku, Kyoto 615-8510, Japan.
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MeSH Terms
Descriptor/Qualifier:
Animals
Circular Dichroism
Drug Carriers / metabolism
Fluorescein-5-isothiocyanate / chemistry
Fluorescent Dyes / analysis*,  chemistry
Infrared Rays*
Male
Mice
Micelles
Nanostructures / chemistry
Neoplasms / metabolism*
Peptides / analysis*,  chemistry
Permeability
Polyglutamic Acid / analogs & derivatives,  chemistry
Rats
Sarcosine / analogs & derivatives,  chemistry
Chemical
Reg. No./Substance:
0/Drug Carriers; 0/Fluorescent Dyes; 0/Micelles; 0/Peptides; 107-97-1/Sarcosine; 25086-16-2/poly-gamma-methylglutamate; 25513-46-6/Polyglutamic Acid; 25951-24-0/polysarcosine; 3326-32-7/Fluorescein-5-isothiocyanate

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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