Distribution of intact and Fab1 2 fragments of anti-human chorionic gonadotrophin antibodies in nude mice bearing human choriocarcinoma xenografts

Abstract
A direct comparative study of the distribution of intact and Fab1 2 fragments of mouse monoclonal anti-human chorionic gonadotrophin antibody, W14A, in nude mice bearing a human choriocarcinoma xenograft, indicates that the tumour:blood ratio is generally improved with fragments. Some parameters which may determine the distribution are outlined.