The rate of sister chromatid exchanges parallel to spontaneous chromosome breakage in Fanconi's anemia and to trenimon-induced aberrations in human lymphocytes and fibroblasts
- PMID: 1165100
- DOI: 10.1007/BF00297624
The rate of sister chromatid exchanges parallel to spontaneous chromosome breakage in Fanconi's anemia and to trenimon-induced aberrations in human lymphocytes and fibroblasts
Abstract
The incidence of structural chromosome aberrations and the rate of sister chromatid exchanges (SCE) was investigated in lymphocyte cultures from a patient with typical Fanconi's anemia and his parents. The rate of SCEs was found to be normal. In experiments with the alkylating agent Trenimon the SCE rates proved to be a sensitive indicator for the induction of structural aberrations: in presence of an induced aberration rate half as high as the spontaneous rate in the Fanconi's anemia case, the rate of SCEs was found to be quintupled. Dose-effect relationships for the induction of SCE rates by Trenimon were studied over a wide dose range in lymphocyte and fibroblast cultures. The results reflect the same difference in sensitivity earlier observed in the induction of structural chromosome aberrations, fibroblasts being far more sensitive.
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