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. 1992 Jul-Aug;3(4):295-301.
doi: 10.1021/bc00016a007.

Preparation of micelle-forming polymer-drug conjugates

M Yokoyama  1 , G S Kwon, T Okano, Y Sakurai, T Seto, K Kataoka
Affiliations

Preparation of micelle-forming polymer-drug conjugates

M Yokoyama et al. Bioconjug Chem. 1992 Jul-Aug.

Erratum in

  • Bioconjug Chem 1993 Jan-Feb;4(1):103

Abstract

Adriamycin, a hydrophobic anticancer drug, was conjugated with poly(ethylene oxide)-poly(aspartic acid) block copolymers composed of various lengths of each block copolymer segment ranging from 1000 to 12,000 in molecular weight and from 10 to 80 units, respectively. Conjugation was achieved without precipitation by adjusting the ratio of adriamycin to aspartic acid residues of the block copolymer and the quantity of DMF used for the reaction. Thus obtained conjugates showed high water solubility irrespective of a large amount of the conjugated adriamycin. Furthermore, these conjugates were found to form micellar structures with a hydrophobic inner core and a hydrophilic outer shell. This micellar architecture may be utilized for effective drug targeting.

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