Integrated Genomic Analysis Identifies UBTF Tandem Duplications as a Recurrent Lesion in Pediatric Acute Myeloid Leukemia

Masayuki Umeda, Jing Ma, Benjamin J. Huang, Kohei Hagiwara, Tamara Westover, Sherif Abdelhamed, Juan M. Barajas, Melvin E. Thomas, Michael P. Walsh, Guangchun Song, Liqing Tian, Yanling Liu, Xiaolong Chen, Pandurang Kolekar, Quang Tran, Scott G. Foy, Jamie L. Maciaszek, Andrew B. Kleist, Amanda R. Leonti, Bengsheng JuJohn Easton, Huiyun Wu, Virginia Valentine, Marcus B. Valentine, Yen Chun Liu, Rhonda E. Ries, Jenny L. Smith, Evan Parganas, Ilaria Iacobucci, Ryan Hiltenbrand, Jonathan Miller, Jason R. Myers, Evadnie Rampersaud, Delaram Rahbarinia, Michael Rusch, Gang Wu, Hiroto Inaba, Yi Cheng Wang, Todd A. Alonzo, James R. Downing, Charles G. Mullighan, Stanley Pounds, M. Madan Babu, Jinghui Zhang, Jeffrey E. Rubnitz, Soheil Meshinchi, Xiaotu Ma, Jeffery M. Klco

Research output: Contribution to journalArticlepeer-review

36 Scopus citations

Abstract

The genetics of relapsed pediatric acute myeloid leukemia (AML) has yet to be comprehensively defined. Here, we present the spectrum of genomic alterations in 136 relapsed pediatric AMLs. We identified recurrent exon 13 tandem duplications (TD) in upstream binding transcription factor (UBTF) in 9% of relapsed AML cases. UBTF-TD AMLs commonly have normal karyotype or trisomy 8 with cooccurring WT1 mutations or FLT3-ITD but not other known oncogenic fusions. These UBTF-TD events are stable during disease progression and are present in the founding clone. In addition, we observed that UBTF-TD AMLs account for approximately 4% of all de novo pediatric AMLs, are less common in adults, and are associated with poor outcomes and MRD positivity. Expression of UBTF-TD in primary hematopoietic cells is sufficient to enhance serial clonogenic activity and to drive a similar transcriptional program to UBTF-TD AMLs. Collectively, these clinical, genomic, and functional data establish UBTF-TD as a new recurrent mutation in AML.

Original languageEnglish (US)
Pages (from-to)194-207
Number of pages14
JournalBlood cancer discovery
Volume3
Issue number3
DOIs
StatePublished - May 1 2022
Externally publishedYes

ASJC Scopus subject areas

  • General Medicine

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