Genome-Wide Association Study of Susceptibility Loci for TCF3-PBX1 Acute Lymphoblastic Leukemia in Children

Shawn H.R. Lee, Maoxiang Qian, Wentao Yang, Jonathan D. Diedrich, Elizabeth Raetz, Wenjian Yang, Qian Dong, Meenakshi Devidas, Deqing Pei, Allen Yeoh, Cheng Cheng, Ching Hon Pui, William E. Evans, Charles G. Mullighan, Stephen P. Hunger, Daniel Savic, Mary V. Relling, Mignon L. Loh, Jun J. Yang

Research output: Contribution to journalArticlepeer-review

12 Scopus citations

Abstract

Acute lymphoblastic leukemia (ALL) is the most common cancer in children. TCF3-PBX1 fusion defines a common molecular subtype of ALL with unique clinical features, but the molecular basis of its inherited susceptibility is unknown. In a genome-wide association study of 1494 ALL cases and 2057 non-ALL controls, we identified a germline risk locus located in an intergenic region between BCL11A and PAPOLG: rs2665658, P = 1.88 × 10-8 for TCF3-PBX1 ALL vs non-ALL, and P = 1.70 × 10-8 for TCF3-PBX1 ALL vs other-ALL. The lead variant was validated in a replication cohort, and conditional analyses pointed to a single causal variant with subtype-specific effect. The risk variant is located in a regulatory DNA element uniquely activated in ALL cells with the TCF3-PBX1 fusion and may distally modulate the transcription of the adjacent gene REL. Our results expand the understanding of subtype-specific ALL susceptibility and highlight plausible interplay between germline variants and somatic genomic abnormalities in ALL pathogenesis.

Original languageEnglish
Pages (from-to)933-937
Number of pages5
JournalJournal of the National Cancer Institute
Volume113
Issue number7
DOIs
StatePublished - 1 Jul 2021
Externally publishedYes

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