Abstract
The observation that cells often respond to carcinogens by nuclear enlargement has suggested that this property might be useful to develop a short-term screening test for such compounds. Previous methods for detecting nuclear size increases have used an image analyzer system to detect nuclear changes in individual cells. This paper details a more rapid method for obtaining nuclei by use of a stromalyzing procedure following by analysis of nuclear volumes, using a Coulter Counter Channelyzer. This new and simplified nuclear sizing method should facilitate the use of the assay as a possible carcinogenesis screen by permitting rapid and efficient testing of large numbers of compounds.
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