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. 1984 Jan;49(1):25–32. doi: 10.1038/bjc.1984.5

Death of intestinal crypts and of their constituent cells after treatment by chemotherapeutic drugs.

J V Moore
PMCID: PMC1976685  PMID: 6691898

Abstract

The number and spatial distribution of necrotic cells in the jejunal crypts of mice, has been measured after treatment by each of 6 cytotoxic drugs. At the LD10/8 day dose of each drug, the majority of necrotic cells were found below position 9 and numbers per crypt were similar for all drugs (approximately 8). These findings resemble those for radiation. However, major differences between agents were found in the calculated numbers of the microcolony-forming units (MFU) that determine overall crypt survival or ablation after high doses of cytotoxic agent. Numbers of MFU as assayed by radiation were approximately 80 per crypt, but only 2 when assayed by mechlorethamine hydrochloride, adriamycin and 5-fluorouracil, and 7 using BCNU. No crypts were destroyed by either cyclophosphamide or actinomycin D, despite the appearance of numerous necrotic cells in the lower part of the crypt. We conclude that in drug-treated intestine, necrotic cells may arise from a non-MFU compartment and the incidence and distributions of such cells are likely to be poor indicators of the response of the MFU.

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Selected References

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

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