Doxorubicin immunoconjugates containing bivalent, lysosomally-cleavable dipeptide linkages.
Bioorg Med Chem Lett
; 12(11): 1529-32, 2002 Jun 03.
Article
em En
| MEDLINE
| ID: mdl-12031335
ABSTRACT
Bivalent doxorubicin (DOX)-dipeptides (16a-c) were prepared and conjugated to the monoclonal antibody BR96. The dipeptides are cleaved by lysosomal proteases following internalization of the resulting immunoconjugates. Conjugate 18b demonstrated antigen-specific in vitro tumor cell killing activity (IC(50)=0.2 microM) that was equipotent to DOX with a near doubling of drug molecules/MAb. Size exclusion chromatography showed 18b to be a noncovalent dimer that was formed immediately upon conjugation.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Doxorrubicina
/
Dipeptídeos
/
Anticorpos Monoclonais
Limite:
Humans
Idioma:
En
Revista:
Bioorg Med Chem Lett
Ano de publicação:
2002
Tipo de documento:
Article