Abstract
SINCE the pioneer work of Lwoff et al.1 it is well known that in certain lysogenic strains of bacteria the phage formation leading to cell lysis can be induced by various agents such as ultra-violet, ionizing radiation, nitrogen mustard, ‘Mitomycin C’ (ref. 2), etc. According to Lwoff's argument, all the water-soluble carcinogens may exhibit more or less prophage-inducing action. From this point of view, it may be of interest that 4-nitroquinoline l-oxide (4-NQO), which was recently demonstrated as a powerful carcinogen by Nakahara et al.3, was found to exert an inducing effect on phage formation in Escherichia coli K12(λ). Of further interest is the fact that the ability of several derivatives of 4-NQO to induce the phage formation is coincident with their carcinogenic action.
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References
Lwoff, A., Bact. Rev., 17, 269 (1953).
Otsuji, N., Sekiguchi, M., Iijima, T., and Takagi, Y., Nature, 184, 1079 (1959).
Nakahara, W., Fukuoka, F., and Sugimura, T., Gann, 48, 124 (1957).
Kaiser, A. D., Virology, 1, 424 (1955).
Nakahara, W., Fukuoka, F., and Sakai, S., Gann., 49, 33 (1958).
Endo, H., Ishizawa, M., Kamiya, T., and Sonoda, T., Nature (in the press).
Okabayashi, T., Chem. Pharm. Bull., 10, 1127 (1962).
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ENDO, H., ISHIZAWA, M. & KAMIYA, T. Induction of Bacteriophage Formation in Lysogenic Bacteria by a Potent Carcinogen, 4-Nitroquinoline l-oxide, and its Derivatives. Nature 198, 195–196 (1963). https://doi.org/10.1038/198195a0
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DOI: https://doi.org/10.1038/198195a0
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