期刊
BRITISH JOURNAL OF HAEMATOLOGY
卷 127, 期 4, 页码 425-428出版社
WILEY
DOI: 10.1111/j.1365-2141.2004.05223.x
关键词
chronic lymphocytic leukaemia; p53; flow cytometry; prognostic factors
类别
In chronic lymphocytic leukaemia (CLL) cells, functional impairment of the p53 pathway is detectable by Western blotting as impaired up-regulation of p21 (a transcriptional target of p53) in response to ionizing radiation (IR). The type A defect is characterized by baseline p53 overexpression and is associated with TP53 mutation. The type B defect is characterized by impaired IR-induced p53 up-regulation and is associated with inactivation of the ataxia telangiectasia-mutated gene (ATM). Both abnormalities are strongly associated with adverse clinical outcome. In the present study, flow cytometry was found to be an effective alternative to Western blotting in the detection of p53 dysfunction in CLL.
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