Abstract
The technique of labelled mitoses was used to examine cell proliferation within grafts of human colonic and rectal tumours in immune deprived mice. Most of the data were obtained on the first passage but in some cases up to the third passage was used. It was found to be difficult to obtain precise kinetic data on this type of tumour material, but the results did allow some estimates to be made, particularly of the duration of the G2 and S phases of the mitotic cycle. The average G2 duration was 6 h and the average S phase was 14 h. It is concluded that whilst xenografts may differ in a number of respects from the tumour in the patient, they nevertheless constitute a type of experimental tumour that is worthy of further study.
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Pickard, R., Cobb, L. & Steel, G. The growth kinetics of xenografts of human colorectal tumours in immune deprived mice. Br J Cancer 31, 36–45 (1975). https://doi.org/10.1038/bjc.1975.5
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DOI: https://doi.org/10.1038/bjc.1975.5
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