Abstract:The significance of the nonspecific esterases of human mononuclear leukocytes (HMLs) in arylamine carcinogenesis is suggested by data showing that the metabolically formed hydroxamic acid derivative of 2-acetylaminofluorene, N-hydroxy-2-acetylaminofluorene, is a substrate for this class of enzymes. A viable cell assay for the nonspecific esterases using alpha-naphthyl acetate as substrate is described, and data showing this activity to be sensitive to already known substrates for HML esterases as measured by t… Show more
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