Dextran-polyethylene glycol (PEG) conjugates were synthesized by activating dextran hydroxy groups with carbonyldiimidazole, introducing amino groups by attaching ethylenediamine, and reacting amino groups with a succinimidyl-activated derivative of PEG. Conjugates with an average of 12 and 21 PEG (5 kDa) residues per single dextran (73 kDa) molecule were prepared. These conjugates have circulation half-lives of 5.3 h and 7.0 h, respectively, compared to 4.0 h for non-PEGylated dextran. The modification of dextran with PEG inhibits the uptake of polymer by the major organ of the reticuloendothelial system, the liver. Dextran-PEG conjugates may represent a convenient platform for long-circulating pharmaceutical preparations.
PEGylated dextran as long-circulating pharmaceutical carrier. Publishing Authors By Initials
PEGylated dextran as long-circulating pharmaceutical carrier. Journal Published:
PUBLICATION TYPE: Research Support, U.S. Gov't,
Journal: Journal of biomaterials science. Polymer edition
VOLUME: 15
Page Numbers: 621-30
Journal Abbreviation:
ISSN: 0920-5063
DAY: 20
MONTH: 02
YEAR: 2004
PEGylated dextran as long-circulating pharmaceutical carrier. Information
Number of References:
LANGUAGE: eng
NlmUniqueID: 9007393
PEGylated dextran as long-circulating pharmaceutical carrier. Keywords Mesh Terms:
KEYWORDS: Tissue Distribution
MESH TERMS: pharmacokinetics
Chemical & Substance for Abstract: PEGylated dextran as long-circulating pharmaceutical carrier. Information
Substance Name: Dextrans
Registry Number: 9004-54-0
Grant and Affiliation Information for PEGylated dextran as long-circulating pharmaceutical carrier.
AFFILIATION: Department of Pharmaceutical Sciences, Bouve College of Health Sciences, 312 Mugar Building, Northeastern University, Boston, MA 02115, USA.
Country: Netherlands
AGENCY: United States NHLBI
GRANT: HL64395
ACRONYM: HL
MEDLINETA: J Biomater Sci Polym Ed
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DATABASENAME:
ACCESSION NUMBER:
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