By R. D. Callander (auth.), Colin S. Cooper Ph. D., Philip L. Grover D. Sc. (eds.)
I were privileged to witness and perform the nice progress of data on chemical carcinogenesis and mutagenesis when you consider that 1939 whilst I entered graduate university in biochemistry on the collage of Wisconsin Madison. I instantly began to paintings with the carcinogenic aminoazo dyes un der the course of Professor CARL BAUMANN. In 1942 I joined a fellow graduate scholar, ELIZABETH CA VERT, in marriage and we quickly started out a joyous half nership in learn on chemical carcinogenesis on the McArdle Laboratory for melanoma examine within the college of Wisconsin scientific tuition in Madison. This collaboration lasted forty five years. i'm very thankful that this quantity is dedi cated to the reminiscence of Elizabeth. the $64000 and sundry themes which are reviewed the following attest to the continuing progress of the fields of chemical motor vehicle cinogenesis and mutagenesis, together with their fresh and fruitful union with viral oncology. i believe very positive concerning the software of information in those fields to the eventual resolution of various difficulties, together with the detection and estimation of the hazards to people of environmental chemical cancer causing agents and re lated factors.
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Additional resources for Chemical Carcinogenesis and Mutagenesis II
As with the spot test, this method allows more than one dose level to be tested per plate by forming a diffusion gradient across each test plate. More recently, a variant of this assay has been developed (HOUK et al. 1988), in which a continuous concentration gradient is created on a spiral plate, allowing testing of a 1S-fold concentration range on a single plate. Although both methods allow more rapid testing of compounds, the results obtained are strictly qualitative and the data produced cannot be analysed using conventional statistical techniques, primarily due to the inability to define the exact dose level at which a response is observed.
Acad Sci USA 75:410-414 Styles JA, Richardson CR, Callander RD, Cross MF, Bennett IP, LongstaffE (1985) Activity of bromochlorodifluoromethane (BCF) in three mutation tests. Mutat Res 142:187-192 Tanooka H (1977) Development and applications of Bacillus subtilis test systems for mutagens, involving DNA-repair deficiency and suppressible auxotrophic mutations. Mutat Res 42:19-32 Tennant RW, Margolin BH, Shelby MD, Zeiger E, Haseman JK, Spalding J, Caspary W, Resnick M, Stasiewicz S, Anderson B, Minor R (1987) Prediction of chemical carcinogenicity in rodents from in vitro genetic toxicity assays.
CALLANDER F. Summary and Conclusions A properly conducted, well-validated, bacterial mutagenicity assay can give a definite indication of the in vivo genotoxic potential of a test compound. g. VICTORIN and STAHLBERG 1988) and increase the potential use of the assay in hazard assessment. The limitations of bacterial mutation assay systems in extrapolating to carcinogenic potential of are now well-defined and can therefore be used to rationalise the use of bacterial assays in screening for potential carcinogens.