Comparison of γ-radiation-induced accumulation of ataxia telangiectasia and control cells in G2 phase
Article
Article Title | Comparison of γ-radiation-induced accumulation of ataxia telangiectasia and control cells in G2 phase |
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Article Category | Article |
Authors | Bates Paul R. and Lavin, Martin F. |
Journal Title | Mutation Research/DNA Repair |
Journal Citation | 218 (2), pp. 165-170 |
Number of Pages | 6 |
Year | 1989 |
Publisher | Elsevier |
Place of Publication | Netherlands |
ISSN | 0921-8777 |
1386-1476 | |
Digital Object Identifier (DOI) | https://doi.org/10.1016/0921-8777(89)90023-2 |
Web Address (URL) | https://www.sciencedirect.com/science/article/abs/pii/0921877789900232 |
Abstract | Recent reports from a number of laboratories have linked radiosensitivity in ataxia telangiectasia (A-T) to a large and prolonged block of some cells in G2 phase. Previous results from this laboratory, largely with one Epstein-Barr virus-transformed A-T lymphoblastoid cell line, presented evidence for a dramatic increase in the number of cells in G2 phase over controls during a 24-h period post irradiation. We describe here a study of the effect of γ-radiation on G2 phase delay in several A-T cell lines. Based on previous results with several cell lines 24 h post irradiation was selected as the optimum time to discriminate between G2 phase delay in control and A-T cells. All A-T homozygotes showed a significantly greater number of cells in G2 phase, 24 h post irradiation, than observed in controls. A more prolonged delay in G2 phase after irradiation was seen in different A-T cell types that included lymphoblastoid cells, fibroblasts and SV40-transformed fibroblasts. At the radiation dose used it was not possible to distinguish A-T heterozygotes from controls. © 1989. |
Keywords | Ataxia telangiectasia; Flow cytometry; G phase accumulation 2; Ionizing radiation |
Contains Sensitive Content | Does not contain sensitive content |
Public Notes | There are no files associated with this item. |
Byline Affiliations | Department of Health, Queensland |
Queensland Institute of Medical Research, Australia |
https://research.usq.edu.au/item/yy809/comparison-of-radiation-induced-accumulation-of-ataxia-telangiectasia-and-control-cells-in-g2-phase
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