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Proceedings of the National Academy of Sciences of the United States of America logoLink to Proceedings of the National Academy of Sciences of the United States of America
. 1971 Dec;68(12):2958–2961. doi: 10.1073/pnas.68.12.2958

Transformation of Hamster Cells In Vitro by Polycyclic Hydrocarbons without Cytotoxicity

J A Dipaolo 1, P J Donovan 1, R L Nelson 1
PMCID: PMC389569  PMID: 5289241

Abstract

Treatment with either a flavone or benz(α)anthracene before the addition of a potent carcinogen, benzo(α)pyrene or 3-methylcholanthrene, enhanced the transformation of Syrian hamster cells that are seeded in order to form colonies. 7,8-benzoflavone and benz(α)anthracene prevented the cytotoxicity by the carcinogens, while 5,6-benzoflavone did not. The results clearly indicate that it is possible to dissociate the transforming from the toxic metabolic properties of benzo(α)pyrene and 3-methylcholanthrene.

Keywords: cloning efficiency, carcinogen, protective agents, frequency of transformation

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

  1. Berwald Y., Sachs L. In vitro transformation of normal cells to tumor cells by carcinogenic hydrocarbons. J Natl Cancer Inst. 1965 Oct;35(4):641–661. [PubMed] [Google Scholar]
  2. Chen T. T., Heidelberger C. Quantitative studies on the malignant transformation of mouse prostate cells by carcinogenic hydrocarbons in vitro. Int J Cancer. 1969 Mar 15;4(2):166–178. doi: 10.1002/ijc.2910040207. [DOI] [PubMed] [Google Scholar]
  3. Connell D. I., Riechers L. A., DiPaolo J. A. Radioautographic analysis of 7,12-dimethyl-benz(a)anthracene-3H incorporation and cell survival of Syrian hamster embryo cells during exposure to nucleic acid inhibitors. J Natl Cancer Inst. 1971 Jan;46(1):183–193. [PubMed] [Google Scholar]
  4. DiPaolo J. A., Donovan P. J., Nelson R. L. In vitro transformation of hamster cells by polycyclic hydrocarbons: factors influencing the number of cells transformed. Nat New Biol. 1971 Apr 21;230(16):240–242. doi: 10.1038/newbio230240a0. [DOI] [PubMed] [Google Scholar]
  5. DiPaolo J. A., Donovan P., Nelson R. Quantitative studies of in vitro transformation by chemical carcinogens. J Natl Cancer Inst. 1969 May;42(5):867–874. [PubMed] [Google Scholar]
  6. Diamond L., Gelboin H. V. Alpha-naphthoflavone: an inhibitor of hydrocarbon cytotoxicity and microsomal hydroxylase. Science. 1969 Nov 21;166(3908):1023–1025. doi: 10.1126/science.166.3908.1023. [DOI] [PubMed] [Google Scholar]
  7. Dipaolo J. A., Donovan P. J. Properties of Syrian hamster cells transformed in the presence of carcinogenic hydrocarbons. Exp Cell Res. 1967 Nov;48(2):361–377. doi: 10.1016/0014-4827(67)90361-8. [DOI] [PubMed] [Google Scholar]
  8. Gelboin H. V. A microsome-dependent binding of benzo[a]pyrene to DNA. Cancer Res. 1969 Jun;29(6):1272–1276. [PubMed] [Google Scholar]
  9. Gelboin H. V., Wiebel F., Diamond L. Dimethylbenzanthracene tumorigenesis and aryl hydrocarbon hydroxylase in mouse skin: inhibition by 7,8-benzoflavone. Science. 1970 Oct 9;170(3954):169–171. doi: 10.1126/science.170.3954.169. [DOI] [PubMed] [Google Scholar]
  10. Grover P. L., Sims P. Enzyme-catalysed reactions of polycyclic hydrocarbons with deoxyribonucleic acid and protein in vitro. Biochem J. 1968 Nov;110(1):159–160. doi: 10.1042/bj1100159. [DOI] [PMC free article] [PubMed] [Google Scholar]
  11. Grover P. L., Sims P., Huberman E., Marquardt H., Kuroki T., Heidelberger C. In vitro transformation of rodent cells by K-region derivatives of polycyclic hydrocarbons. Proc Natl Acad Sci U S A. 1971 Jun;68(6):1098–1101. doi: 10.1073/pnas.68.6.1098. [DOI] [PMC free article] [PubMed] [Google Scholar]
  12. HILL W. T., STANGER D. W., PIZZO A., RIEGEL B., SHUBIK P., WARTMAN W. B. Inhibition of 9,10-dimethyl-1,2-benzanthracene skin carcinogenesis in mice by polycyclic hydrocarbons. Cancer Res. 1951 Nov;11(11):892–897. [PubMed] [Google Scholar]
  13. Huberman E., Sachs L. Cell susceptibility to transformation and cytotoxicity by the carcinogenic hydrocarbon benzo[a]pyrene. Proc Natl Acad Sci U S A. 1966 Oct;56(4):1123–1129. doi: 10.1073/pnas.56.4.1123. [DOI] [PMC free article] [PubMed] [Google Scholar]
  14. Nebert D. W., Gelboin H. V. Substrate-inducible microsomal aryl hydroxylase in mammalian cell culture. II. Cellular responses during enzyme induction. J Biol Chem. 1968 Dec 10;243(23):6250–6261. [PubMed] [Google Scholar]
  15. Selkirk J. K., Huberman E., Heidelberger C. An epoxide is an intermediate in the microsomal metabolism of the chemical carcinogen, dibenz(a,h)anthracene. Biochem Biophys Res Commun. 1971 Jun 4;43(5):1010–1016. doi: 10.1016/0006-291x(71)90562-6. [DOI] [PubMed] [Google Scholar]
  16. Wattenberg L. W., Leong J. L. Inhibition of the carcinogenic action of benzo(a)pyrene by flavones. Cancer Res. 1970 Jul;30(7):1922–1925. [PubMed] [Google Scholar]
  17. Wheatley D. N. Enhancement and inhibition of the induction by 7,12-dimethylbenz(a)anthracene of mammary tumours in female Sprague-Dawley rats. Br J Cancer. 1968 Dec;22(4):787–797. doi: 10.1038/bjc.1968.93. [DOI] [PMC free article] [PubMed] [Google Scholar]

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