Unrepaired DNA strand breaks in irradiated ataxia telangiectasia lymphocytes suggested from cytogenetic observations
- PMID: 672922
- DOI: 10.1016/0027-5107(78)90045-3
Unrepaired DNA strand breaks in irradiated ataxia telangiectasia lymphocytes suggested from cytogenetic observations
Abstract
It is suggested here that the unusually high level of radiation-induced chromosome and chromatid-type aberrations in cells from patients with ataxia telangiectasia, compared with normals, is due to a significantly increased fraction of unrepaired double and single strand breaks. A hypothesis is proposed to explain how unrepaired and misrepaired DNA single or double strand breaks might be the basic lesion leading to the typical chromosome aberrations seen following X-irradiation of both normal or AT cells.
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