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

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posted on 2023-04-04, 01:23 authored by 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 Ju, John 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
Supplementary Data from Integrated Genomic Analysis Identifies UBTF Tandem Duplications as a Recurrent Lesion in Pediatric Acute Myeloid Leukemia

Funding

American Lebanese Syrian Associated Charities (ALSAC)

National Cancer Institute (NCI)

United States Department of Health and Human Services

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Fund for Innovation in Cancer Informatics (ICI)

St. Baldrick's Foundation (SBF)

Leukemia and Lymphoma Society (LLS)

Children's Oncology Group (COG)

Andrew McDonough B+ Foundation (AMBF)

Hyundai Hope On Wheels (Hope On Wheels)

Fred Hutchinson Cancer Research Center (FHCRC)

Burroughs Wellcome Fund (BWF)

History

ARTICLE 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. We defined the spectrum of mutations in relapsed pediatric AML and identified UBTF-TDs as a new recurrent genetic alteration. These duplications are more common in children and define a group of AMLs with intermediate-risk cytogenetic abnormalities, FLT3-ITD and WT1 alterations, and are associated with poor outcomes.See related commentary by Hasserjian and Nardi, p. 173.This article is highlighted in the In This Issue feature, p. 171.

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