Suppression of hela cell growth and increase in nuclear size by chemical carcinogens: A possible screening method |
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Authors: | D. Grant P. Grasso |
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Affiliation: | The British Industrial Biological Research Association, Woodmansterne Road, Carshalton, Surrrey, SM5 4DS Great Britain |
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Abstract: | HeLa cell monolayers were “pulse” treated with either carcinogenic or “noncarcinogenic” chemicals. Pre-carcinogens were added with a liver homogenate to provide an appropriate metabolizing system. All proximate carcinogens and a proportion of pre-carcinogens were able to inhibit cell division, and in all cases examined, this was accompanied by nuclear enlargement. Although several “non-carcinogenic” chemicals also arrested cell division, nuclear enlargement was not produced. The possibility that growth inhibition and nuclear enlargement in cells treated briefly with a chemical could provide a rapid indication of carcinogenic activity is discussed. |
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