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  • Title: RUNX1 gene mutation in primary myelodysplastic syndrome--the mutation can be detected early at diagnosis or acquired during disease progression and is associated with poor outcome.
    Author: Chen CY, Lin LI, Tang JL, Ko BS, Tsay W, Chou WC, Yao M, Wu SJ, Tseng MH, Tien HF.
    Journal: Br J Haematol; 2007 Nov; 139(3):405-14. PubMed ID: 17910630.
    Abstract:
    Mutations of Runt-related transcription factor 1 (RUNX1) have been detected in patients with myelodysplastic syndrome (MDS). However, the prognostic implication of RUNX1 mutations in primary MDS is limited. The stage of the disease at which the mutations are acquired and whether they persist during the disease course also remain unclear. We analysed mutations of RUNX1 exons 3-8 in 132 patients with primary MDS and correlated the results with clinical features. Serial studies were performed during the follow-up period. Sixteen patients (12%) had RUNX1 mutations at the time of diagnosis. All RUNX1 mutations that were detected at diagnosis remained unchanged during the clinical course. Two other patients acquired RUNX1 mutations at leukaemic transformation 34 months and 35 months after the diagnosis of MDS. Patients with RUNX1 mutations at diagnosis had higher neutrophil counts and higher frequency of -7/7q deletion than those without. Furthermore, RUNX1 mutation was closely associated with a short overall survival (P = 0.039). This is the first report to demonstrate that RUNX1 mutation can not only be detected early at diagnosis but also acquired during disease progression and is associated with poor prognosis in patients with primary MDS. It may play a role in the development and progression of a subset of primary MDS.
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