title: Conjugation of 1-naphthol by human bronchus and bronchoscopy samples.
abstract: Human bronchus, in short-term explant culture, metabolized 1-naphthol to both its sulphate ester and glucuronic acid conjugates. At low concentrations of 1-naphthol (20 microM), more 1-naphthyl sulphate than 1-naphthyl-beta-D-glucuronide was formed. At similar substrate concentrations, short-term explant cultures of both bronchus without cartilage and bronchoscopy samples, which consisted largely of bronchial epithelium, formed predominantly 1-naphthyl-beta-D-glucuronide. Thus cartilage, which alone did not significantly metabolize 1-naphthol, may in some way influence the metabolism of 1-naphthol by intact bronchus. A large inter-individual variation was observed in the conjugation of 1-naphthol by cultured human bronchus. Such variations in the conjugation of chemicals may be of importance in determining individual susceptibility to chemically induced damage.
mesh_terms: D001980:Bronchi / Q000378:metabolism*; D001999:Bronchoscopy; D002356:Cartilage / Q000378:metabolism; D005965:Glucuronates / Q000378:metabolism; D006801:Humans; D008175:Lung Neoplasms / Q000378:metabolism; D009284:Naphthols / Q000378:metabolism*; D009924:Organ Culture Techniques; D013463:Sulfuric Acid Esters / Q000378:metabolism
chemical_list: D005965:Glucuronates; D009284:Naphthols; D013463:Sulfuric Acid Esters; C029092:naphthyl sulfate; C029350:1-naphthol; C029091:naphthyl glucuronide