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Br J Cancer. 2004 Jan 26;90(2):522-5.

Molecular variants of the ATM gene in Hodgkin's disease in children.

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  • 1Molecular Oncology, Felsenstein Medical Research Center, Petah Tikva, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel.


Ataxia telangiectasia is an autosomal recessive disease with a striking predisposition of lymphoid malignancies. ATM mutations have been reported in adult sporadic lymphoma and leukaemia. The aim of this study was to investigate the possible involvement of the ATM gene in the carcinogenesis of Hodgkin disease in children. Tumours were obtained from 23 patients and were subjected to mutation screening and loss of heterozygosity analysis. Eight base substitutions were identified in seven patients. Of them, Y54Y, a silent change, was observed in two patients and a known polymorphism, D1853N, in three patients. Of the other two patients, one harboured a combined genotype P604S/F1463C, identified previously in two patients with Hodgkin lymphoma, and the other a novel missense mutation, V595A. The alterations were present in the germ line, and both had a more aggressive disease. In all, 100 matched normal ethnic controls were screened for these mutations and P604S/F1463C was identified in one healthy control. Loss of heterozygosity was identified in four patients and in three of them it was located centromeric to the ATM gene, and, in one, it spanned a large region, indicating the involvement of other tumour-suppressor genes in this disease. Missense variants of the ATM gene are a rare event in childhood Hodgkin disease.

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