INVESTIGADORES
EDREIRA Martin Miguel
artículos
Título:
Optimisation of antibody labeling with rhenium-188 using a prelabeled MAG3 chelate
Autor/es:
JOSÉ L. CRUDO, MARTIN M. EDREIRA, ESTEBAN R. OBENAUS, MARCO CHINOL, GIOVANNI PAGANELLI AND SILVIA G. DE CASTIGLIA
Revista:
INTERNATIONAL JOURNAL OF PHARMACEUTICS
Referencias:
Año: 2002 vol. 248 p. 173 - 182
ISSN:
0378-5173
Resumen:
We report the optimization of polyclonal IgG labeling by 188Re using S-benzoylMAG3
as a model for labeling monoclonal antibodies (MoAb). We examined the
in vitro stability of the labeled protein and its localization and
excretion in mice with induced focal inflammation. Stability in serum
was greater than 85.5% after 24 h. Biodistribution and imaging studies
following administration to mice showed mainly renal and hepatic
excretion and high IT/NT ratios (4.5 and 4.6) at 24 and 48 h,
respectively. This indirect method of labeling antibodies using a 188Re-labeled active ester of MAG3 produced 188ReMAG3IgG of high in vitro stability and favorable uptake at sites of focal inflammation.