Partial tandem duplication of MLL gene in acute myeloid leukemia with translocation (11;17)(q23;q12-21).
Translocation 11q23 and MLL gene rearrangements are commonly observed in acute myeloid leukemia (AML) in association with the myelomonocytic or monocytic feature. We describe a case involving a 15-year-old patient with AML characterized by leukemic cells exhibiting translocation (11;17)(q23;q12-21) and MLL gene rearrangement. No fusion partner gene of the MLL gene was identified, including RARalpha(17q12) or AF17 (17q21); however, a partial tandem duplication of the MLL exon 11/exon 10 was detected in leukemic cells via a 3'RACE method for detection of unknown partner genes. The patient has been in remission for more than 2 years without hematopoietic stem cell transplantation.
Yamamoto
Shuichi
S
Department of Pediatrics, Faculty of Medicine, Saga University, Japan.
Nishi
Masanori
M
Taniguchi
Kazuto
K
Imayoshi
Miyoko
M
Ogata
Yoshiyasu
Y
Iwanaga
Manabu
M
Sakai
Nana
N
Hamasaki
Yuhei
Y
Ishii
Eiichi
E
D000293:Adolescent; D001483:Base Sequence; D002874:Chromosome Mapping; D002880:Chromosomes, Human, Pair 11; D002886:Chromosomes, Human, Pair 17; D004268:DNA-Binding Proteins / Q000235:genetics*; D005260:Female; D020440:Gene Duplication; D015321:Gene Rearrangement; D011495:Histone-Lysine N-Methyltransferase; D006801:Humans; D007621:Karyotyping; D015470:Leukemia, Myeloid, Acute / Q000235:genetics*; D051788:Myeloid-Lymphoid Leukemia Protein; D011519:Proto-Oncogenes / Q000235:genetics*; D014157:Transcription Factors / Q000235:genetics*; D014178:Translocation, Genetic
D004268:DNA-Binding Proteins; C497422:KMT2A protein, human; D014157:Transcription Factors; D051788:Myeloid-Lymphoid Leukemia Protein; D011495:Histone-Lysine N-Methyltransferase