p53 tumour suppressor gene and RAS oncogenes: molecular analysis in the chronic and leukaemic phases of essential thrombocythaemia.

Abstract:

:A panel of 51 cases of essential thrombocythaemia (ET), in chronic or leukaemic phase, was investigated for p53 gene and RAS oncogenes mutations by PCR-SSCP-direct sequencing. No RAS oncogenes mutations were detected, but p53 mutations were identified in three cases: 1/27 cases (approximately 4%) in chronic phase not undergoing chemotherapy, 1/19 cases (approximately 5%) in chronic phase undergoing chemotherapy, and 1/5 cases (20%) which had progressed to leukaemia. Our results suggest that: (1) p53 gene mutations occur sporadically in the chronic phase of ET, independent of chemotherapy, and may contribute to the progression to the leukaemic phase in a limited number of ET patients; (2) the RAS genes family does not seem to be involved in the pathogenesis of ET, unlike other bcr/abl negative chronic myeloproliferative diseases (CMPDs).

journal_name

Br J Haematol

authors

Neri A,Fracchiolla NS,Radaelli F,Boletini A,Ribera S,Migliorini C,Trecca D,Maiolo AT

doi

10.1046/j.1365-2141.1996.d01-1690.x

subject

Has Abstract

pub_date

1996-06-01 00:00:00

pages

670-3

issue

3

eissn

0007-1048

issn

1365-2141

journal_volume

93

pub_type

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