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Changing p53 mutations with the evolution of chronic myeloid leukaemia from the chronic phase to blast crisis

Guinn, B. A., Smith, Melissa, Padua, R. A., Burnett, Alan Kenneth and Mills, K. 1995. Changing p53 mutations with the evolution of chronic myeloid leukaemia from the chronic phase to blast crisis. Leukemia Research 19 (8) , pp. 519-525. 10.1016/0145-2126(95)00024-i

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Abstract

The frequent involvement of chromosome 17p abnormalities in the progression of chronic myeloid leukaemia (CML) led us to investigate the involvement of the p53 tumour suppressor gene located on chromosome 17p. We analysed 31 samples from four patients sequentially, and 16 patients in blast crisis only, using single stranded conformational polymorphism (SSCP) analysis of exons 5-8, followed by cloning and sequencing. The sequential samples ranged from diagnosis through to late disease. We found that 15% of our blast crisis samples had p53 abnormalities. In our sequential studies we found two of the four patients analysed in more detail had p53 mutations in the late chronic phase of disease (11 and 5 months prior to blast crisis becoming apparent). These chronic phase mutations differed from the p53 abnormalities found in the blast crisis samples from these patients. One patient also had the same chronic phase mutation at post bone marrow transplant relapse. Our results suggest that, in some cases, sequential investigations through CML disease progression of p53 mutations and other oncogenes/proto-oncogenes may provide early indications of the routes of disease progression to blast crisis.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Medicine
Subjects: R Medicine > R Medicine (General)
Publisher: Elsevier
ISSN: 0145-2126
Last Modified: 25 Jun 2017 04:41
URI: http://orca.cf.ac.uk/id/eprint/58516

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