Detection of urinary metabolites of 2‐acetylaminofuorene by cultured hamster embryo cells and high performance liquid chromatography

Abstract
Urine was collected from Sprague‐Dawley rats injected intraperitoneally with a suspension of 2‐acetylaminofluorene (AAF) or with an inert suspension vehicle. Morphological transformation was observed in clonal cultures of secondary passage hamster embryo cells (HEC) after the addition of AAF‐treated rat urine or concentrated urine extracts prepared by incubating the urine with β‐glucuronidase. No morphological alteration was observed in cultures treated with urine (or urine extracts) from rats injected with the suspension vehicle alone. The presence of N‐hydroxy‐ and ring‐hydroxylated metabolites of AAF in the AAF‐treated concentrated urine extract was confirmed by highperformance liquid chromatography (HPLC).