ArticleInternational journal of pharmaceutics2010
Biodistribution of HuCC49DeltaCH2-beta-galactosidase in colorectal cancer xenograft model.
Article in International journal of pharmaceutics, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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0 citing papers in PubMed, 8 citations in OpenAlex.
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3 authors at 1 institution in 1 country.
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Abstract
Antibody-enzyme conjugate (AbE) has been widely studied for site-specific prodrug activation in tumors. The purpose of this study is to characterize the pharmacokinetics and tissue distribution of HuCC49DeltaCH2-beta-galactosidase conjugate. HuCC49DeltaCH2 and beta-galactosidase were chemically conjugated and injected into a LS 174T colon cancer xenograft model. A colorimetric assay was developed to quantify the HuCC49DeltaCH2-beta-galactosidase levels in plasma and tissues. The HuCC49DeltaCH2-beta-galactosidase conjugate distributed into tumor tissue as early as 6h with the tumor/blood ratio of 5. This favored distribution of conjugate activity in the tumor tissue which was maintained up to 4 days post conjugate injection, while the conjugate was cleared rapidly from blood and other normal tissues (heart, spleen, lung, liver, kidney and stomach). At a high dose of 3000 U/kg, HuCC49DeltaCH2-beta-galactosidase conjugate saturated the antigen binding sites and yielded decreased tumor/normal tissue ratios compared to 1500 U/kg. These data suggest that HuCC49DeltaCH2-beta-galactosidase specifically target to the tumors to increase tumor selectivity.
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