Biomonitoring human exposure to environmental carcinogenic chemicals

Autor: J. Stone, G. Rowley, Soterios A. Kyrtopoulos, R.C. Garner, Jane Cole, Peter B. Farmer, Franco Merlo, D. Beare, Robert A. Baan, K.S. Amaning, D.E.G. Shuker, Steinar Øvrebø, P. Van Hummelen, C. Leuratti, Herman Autrup, O. Sepai, J.H.M. van Delft, Åshild Andreassen, P.Sabro Nielsen, K.H. Dingley, M.J.S.T. Steenwinkel, Nikos Theodorakopoulos, Ad D. Tates, Nigel J. Jones, A. Ellul, Aage Haugen, K. Aldrich, A.B. Vestergård, A. Schouft, Angelo Abbondandolo, R. Lawrence, Micheline Kirsch-Volders, Adayapalam T. Natarajan, Naoum C. Bacalis, Alastair P.W. Waugh, Kemal Haque, Andrew C. Povey, Emily Capulas, P Castelain, Vassilis L. Souliotis, Raymond Waters
Rok vydání: 1996
Předmět:
Zdroj: Farmer, P B, Sepai, O, Lawrence, R, Autrup, H, Nielsen, P S, Vestergård, A B, Waters, R, Leuratti, C, Jones, N J, Stone, J, Baan, R A, van Delft, J H M, Steenwinkel, M J S T, Kyrtopoulos, S A, Souliotis, V L, Theodorakopoulos, N, Bacalis, N C, Natarajan, A T, Tates, A D, Haugen, A, Andreassen, Å, Øvrebø, S, Shuker, D E G, Amaning, K S, Schouft, A, Ellul, A, Garner, R C, Dingley, K H, Abbondandolo, A, Merlo, F, Cole, J, Aldrich, K, Beare, D, Capulas, E, Rowley, G, Waugh, A P W, Povey, A C, Haque, K, Kirsch-Volders, M, Van Hummelen, P & Castelain, P 1996, ' Biomonitoring human exposure to environmental carcinogenic chemicals ', Mutagenesis, vol. 11, no. 4, pp. 363-381 .
ISSN: 1464-3804
0267-8357
DOI: 10.1093/mutage/11.4.363
Popis: A coordinated study was carried out on the development, evaluation and application of biomonitoring procedures for populations exposed to environmental genotoxic pollutants. The procedures used involved both direct measurement of DNA or protein damage (adducts) and assessment of secondary biological effects (mutation and cytogenetic damage). Adduct detection at the level of DNA or protein (haemoglobin) was carried out by 32P-postlabelling, immunochemical, HPLC or mass spectrometric methods. Urinary excretion products resulting from DNA damage were also estimated (immunochemical assay, mass spectrometry). The measurement of adducts was focused on those from genotoxicants that result from petrochemical combustion or processing, e.g. low-molecular-weight alkylating agents, PAHs and compounds that cause oxidative DNA damage. Cytogenetic analysis of lymphocytes was undertaken (micronuclei, chromosome aberrations and sister chromatid exchanges) and mutation frequency was estimated at a number of loci including the hprt gene and genes involved in cancer development. Blood and urine samples from individuals exposed to urban pollution were collected. Populations exposed through occupational or medical sources to larger amounts of some of the genotoxic compounds present in the environmental samples were used as positive controls for the environmentally exposed population. Samples from rural areas were used as negative controls. The project has led to new, more sensitive and more selective approaches for detecting carcinogen-induced damage to DNA and proteins, and subsequent biological effects. These methods were validated with the occupational exposures, which showed evidence of DNA and/or protein and/or chromosome damage in workers in a coke oven plant, garage workers exposed to diesel exhaust and workers exposed to ethylene oxide in a sterilization plant. Dose response and adduct repair were studied for methylated adducts in patients treated with methylating cytostatic drugs. The biomonitoring methods have also demonstrated their potential for detecting environmental exposure to genotoxic compounds in nine groups of non-smoking individuals, 32P-postlabelling of DNA adducts being shown to have the greatest sensitivity. Chemicals/CAS: Antineoplastic Agents, Alkylating; Blood Proteins; Carcinogens, Environmental; DNA Adducts; Epichlorohydrin, 106-89-8; Ethylene Oxide, 75-21-8; Methylene Chloride, 75-09-2; Mutagens; Nitrogen Oxides; Petroleum; Polycyclic Hydrocarbons, Aromatic; Styrene, 100-42-5; Styrenes
Databáze: OpenAIRE
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