Feasibility of the AML profiler Skyline (TM) Array) for patient risk stratification in a multicentre trial: a preliminary comparison with the conventional approach

Autor: Nomdedeu, JF, Puigdecanet, E, Bussaglia, E, Hernandez, JJ, Carricondo, M, Estivill, C, Marti-Tutusaus, JM, Tormo, M, Zamora, L, Serrano, E, Perea, G, de Llano, MPQ, Garcia, A, Sanchez-Ortega, I, Ribera, JM, Nonell, L, Aventin, A, Francesc Solé, Brunet, MS, Sierra, J
Rok vydání: 2017
Předmět:
Zdroj: HEMATOLOGICAL ONCOLOGY
r-IIB SANT PAU. Repositorio Institucional de Producción Científica del Instituto de Investigación Biomédica Sant Pau
instname
Hematological Oncology
r-IGTP. Repositorio Institucional de Producción Científica del Instituto de Investigación Germans Trias i Pujol
ISSN: 0278-0232
1099-1069
Popis: Deoxyribonucleic acid microarrays allow researchers to measure mRNA levels of thousands of genes in a single experiment and could be useful for diagnostic purposes in patients with acute myeloid leukaemia (AML). We assessed the feasibility of the AML profiler (Skyline (TM) Array) in genetic stratification of patients with de novo AML and compared the results with those obtained using the standard cytogenetic and molecular approach.Diagnostic bone marrow from 31 consecutive de novo AML cases was used to test MLL-PTD, FLT3-ITD and TKD, NPMI and CEBPAdm mutations. Purified RNA was used to assess RUNX1-RUNXITI, PML-RARa and CBF beta-MYII11 rearrangements. RNA remnants underwent gene expression profiling analysis using the AML profiler, which detects chromosomal aberrations: t(8;21), t(15;17), inv(16), mutations (CEBPAdm, ABD-NPMI) and BAALC and EVIL expression. Thirty cases were successfully analysed with both methods. Five cases had FLT3-ITD. In one case, a t(8;21) was correctly detected by both methods. Four cases had inv(16); in one, the RNA quality was unsatisfactory , and it was not hybridized, and in the other three, the AML profiler detected the genetic lesion - this being a rare type I translocation in one case. Two cases with acute promyelocytic leukaemia were diagnosed by both methods. Results for NPMI mutations were concordant in all but two cases (2/11, non-ABD mutations). Analysis of costs and turnaround times showed that the AML profiler was no more expensive than the conventional molecular approach. These results suggest that the AML profiler could be useful in multicentre trials to rapidly identify patients with AML with a good prognosis. Copyright (C) 2016 John Wiley & Sons, Ltd.
Databáze: OpenAIRE
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