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  1. Somatic mutations at the T-cell antigen receptor in antineoplastic drug-exposed populations : comparison with sister chromatid exchange frequency.

    Article - En anglais

    Objective 

    The objective of this study was to assess the genetic effect of occupational exposure to antineoplastic agents.

    Method 

    The influence of occupational handling of cytotoxic drugs was investigated by monitoring the frequency of sister chromatid exchanges (SCE), the percentage of cells with high frequencies of SCE (high-frequency cells, HFC), and the frequency of somatic mutation at the T-cell receptor (TCR) locus in mononuclear cells of exposed hospital nurses.

    These parameters were also measured in healthy donors and in cancer patients at the time of the diagnosis and following the administration of high doses of cytotoxic drugs requiring stem cell support.

    Results 

    Our results show that (a) SCE and HFC values in occupationally exposed nurses do not differ from controls, (b) patients with newly diagnosed cancer or following chemotherapy show a number of SCE comparable to those of healthy donors, but a significantly different percentage of HFC, (c) cigarette smokers of all categories studied show higher frequencies of SCE and HFC as compared to nonsmokers, but the differences are not statistically significant, (d) the mutation frequency at the TCR locus in oncology nurses is higher, but not significantly different from the frequency in the control group, and (e) the increase of mutation frequency is statistically significant and seems to be dose dependent in patients treated with high-dose chemotherapy. (...)

    Mots-clés Pascal : Anticancéreux, Toxicité, Exposition professionnelle, Médecine travail, Homme, Infirmier, Personnel sanitaire, Test mutagénicité, Etude comparative, Echange chromatide soeur, Mutation, Récepteur cellule T, Gène

    Mots-clés Pascal anglais : Antineoplastic agent, Toxicity, Occupational exposure, Occupational medicine, Human, Nurse, Health staff, Mutagenicity testing, Comparative study, Sister chromatid exchange, Mutation, T cell receptor, Gene

    Logo du centre Notice produite par :
    Inist-CNRS - Institut de l'Information Scientifique et Technique

    Cote : 99-0474506

    Code Inist : 002B02U10. Création : 22/03/2000.