Additional acquisition of t(1;21)(p32;q22) in a patient relapsing with acute myelogenous leukemia with NUP98-HOXA9

Takatoshi Aoki, Toshihiro Miyamoto, Shuro Yoshida, Asataro Yamamoto, Takuji Yamauchi, Goichi Yoshimoto, Yasuo Mori, Kenjiro Kamezaki, Hiromi Iwasaki, Katsuto Takenaka, Naoki Harada, Koji Nagafuji, Takanori Teshima, Koichi Akashi

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4 Citations (Scopus)

Abstract

We report a 29-year-old Japanese male with acute myelogenous leukemia (AML)-M4 with a cryptic t(7;11)(p15;p15), in which a chimeric NUP98-HOXA9 fusion was detected by polymerase chain reaction analysis and a chromosomal analysis showed 46,XY. The patient received intensive chemotherapy and underwent autologous stem cell transplantation, and remission was confirmed by the disappearance of NUP98-HOXA9. However, 6 months after transplantation, the patient relapsed; NUP98-HOXA9 was detected again and karyotypic analysis revealed 46,XY, t(1;21)(p32;q22). Fluorescent in situ hybridization (FISH) analysis using an AML1-ETO translocation dual probe, showed that the 21q22 breakpoint involved AML1 locus. A retrospective FISH analysis showed that t(1;21) was absent at onset. This is the first reported case with AML who had a cryptic t(7;11)(p15;p15), and additionally acquired t(1;21)(p32;q22) at relapse.

Original languageEnglish
Pages (from-to)571-574
Number of pages4
JournalInternational journal of hematology
Volume88
Issue number5
DOIs
Publication statusPublished - Dec 2009

All Science Journal Classification (ASJC) codes

  • Hematology

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