Gene expression profiling identifies FLT3 mutation-like cases in wild-type FLT3 acute myeloid leukemia

Adrián Mosquera Orgueira, Andrés Peleteiro Raíndo, Miguel Cid López, Beatriz Antelo Rodríguez, José Ángel Díaz Arias, Roi Ferreiro Ferro, Natalia Alonso Vence, Ángeles Bendaña López, Aitor Abuín Blanco, Laura Bao Pérez, Paula Melero Valentín, Marta Sonia González Pérez, Claudio Cerchione, Giovanni Martinelli, Pau Montesinos Fernández, Manuel Mateo Pérez Encinas and José Luis Bello López

PLOS ONE, 2021, vol. 16, issue 2, 1-9

Abstract: Background: FLT3 mutation is present in 25–30% of all acute myeloid leukemias (AML), and it is associated with adverse outcome. FLT3 inhibitors have shown improved survival results in AML both as upfront treatment and in relapsed/refractory disease. Curiously, a variable proportion of wild-type FLT3 patients also responded to these drugs. Methods: We analyzed 6 different transcriptomic datasets of AML cases. Differential expression between mutated and wild-type FLT3 AMLs was performed with the Wilcoxon-rank sum test. Hierarchical clustering was used to identify FLT3-mutation like AMLs. Finally, enrichment in recurrent mutations was performed with the Fisher’s test. Results: A FLT3 mutation-like gene expression pattern was identified among wild-type FLT3 AMLs. This pattern was highly enriched in NPM1 and DNMT3A mutants, and particularly in combined NPM1/DNMT3A mutants. Conclusions: We identified a FLT3 mutation-like gene expression pattern in AML which was highly enriched in NPM1 and DNMT3A mutations. Future analysis about the predictive role of this biomarker among wild-type FLT3 patients treated with FLT3 inhibitors is envisaged.

Date: 2021
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Persistent link: https://EconPapers.repec.org/RePEc:plo:pone00:0247093

DOI: 10.1371/journal.pone.0247093

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