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Rinsho Ketsueki. 2017;58(8):1031-1037. doi: 10.11406/rinketsu.58.1031.

Acute lymphoblastic leukemia of adolescents and young adults: from the viewpoint of physicians.

[Article in Japanese]

Author information

1
Clinical Research Center, Nagoya Medical Center, National Hospital Organization.
2
Department of Hematology, Nagoya University Hospital.

Abstract

Fusion genes found in cases of acute lymphoblastic leukemia (ALL) are reported to be associated with age, such as MLL rearrangements in neonates and BCR-ABL1 in adults. However, the pathogenesis of ALL in adolescents and young adults (AYA) remains largely unknown. To investigate the potential role of fusion genes, we performed RNA-sequencing on 73 BCR-ABL1-negative ALL patients who were all AYA. Interestingly, DUX4-IGH was the most frequent fusion gene detected in B-ALL (18.5%) and was preferentially detected in the AYA generation. ZNF384 and MEF2D genes were also recurrently identified as functionally relevant fusion genes in 16.7% and 9.3% of AYA with B-ALL, respectively. Patients with DUX4 and ZNF384 fusion genes displayed better prognosis, while those with the MEF2D fusion gene displayed a worse outcome. To improve treatment outcome, the fusion genes detected in this study will be useful for risk stratification and target therapy.

KEYWORDS:

DUX4; Fusion genes; MEF2D; ZNF384

PMID:
28883266
DOI:
10.11406/rinketsu.58.1031
[Indexed for MEDLINE]

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