Stability and localization of biotin-labeled murine monoclonal antibody to human gastric cancer in normal mice and nude mice-human tumor modelsT Yokota, T Yamaguchi, K Kitamura, E Otsuji, K Sawai and T Takahashi First Department of Surgery, Kyoto Prefectural University of Medicine, Japan. We examined the tissue localization of biotin-labeled murine monoclonal antibody (MAb) S202 directed against the human scirrhous gastric carcinoma cell line MK-01 in normal and tumor-bearing mice after intravenous (IV) administration. The biotin-labeled MAb proved to be stable in vivo under normal conditions, antibody titer being 1:256 at 4 hr after IV injection. At 24 hr after injection, the tumor was stained by the avidin-biotin-peroxidase complex (ABC) method. Biotin-labeled MAb was found to be suitable for detection of the xenografted tumor of nude mice. This study provides new information concerning the dynamics of the distribution of biotin-labeled MAb in vivo.
Volume 38,
Issue 4,
pp. 585-588,
04/01/1990
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