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Title

Simultaneous analysis of the expression of 14 genes with individual prognostic value in myelodysplastic syndrome patients at diagnosis: WT1 detection in peripheral blood adversely affects survival

AuthorsSantamaría, Carlos; Cañizo, María Consuelo del; Díez-Campelo, María; Chillón, M. del Carmen; García-Sanz, Ramón; San Miguel, Jesús F. ; González, Marcos
Issue Date2012
PublisherSpringer
CitationAnnals of Hematology 91(12): 1887-1895 (2012)
AbstractSeveral studies have evaluated the prognostic value of the individual expression of certain genes in patients with myelodysplastic syndromes (MDS). However, none of them includes their simultaneous analysis by quantitative polymerase chain reaction (PCR). We evaluated relative expression levels of 14 molecular markers in 193 peripheral blood samples from untreated MDS patients using real-time PCR. Detectable WT1 expression levels, low TET2, and low IER3 gene expression were the only markers showing in univariate analysis a poor prognostic value for all treatment-free (TFS), progression-free (PFS), and overall survival (OS). In multivariate analysis, molecular parameters associated with a shorter TFS were: WT1 detection (p=0.014), low TET2 (p=0.002), and low IER3 expression (p=0.025). WT1 detection (p=0.006) and low TET2 (p=0.006) expression were associated with a shorter PFS when multivariate analysis was carried out by including only molecular markers. Molecular values with an independent value in OS were: WT1 detection (p=0.003), high EVI1 expression (p=0.001), and undetectatable p15-CDKN2B (p=0.037). WT1 expressers were associated with adverse clinical-biological features, high IPSS and WPSS scoring, and unfavorable molecular expression profile. In summary, detectable WT1 expression levels, and low TET2 and low IER3 expression in peripheral blood showed a strong association with adverse prognosis in MDS patients at diagnosis. However, WT1 was the only molecular marker displaying an independent prognostic value in both OS and TFS.
URIhttp://hdl.handle.net/10261/134204
DOI10.1007/s00277-012-1538-7
Identifiersdoi: 10.1007/s00277-012-1538-7
issn: 0939-5555
e-issn: 1432-0584
Appears in Collections:(IBMCC) Artículos
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