Identification of four novel associations for B-cell acute lymphoblastic leukaemia risk.

Vijayakrishnan, Jayaram; Qian, Maoxiang; Studd, James B; Yang, Wenjian; Kinnersley, Ben; Law, Philip J; Broderick, Peter; Raetz, Elizabeth A et al. · Nat Commun · 2019

meta_analysis · Level I

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Abstract

There is increasing evidence for a strong inherited genetic basis of susceptibility to acute lymphoblastic leukaemia (ALL) in children. To identify new risk variants for B-cell ALL (B-ALL) we conducted a meta-analysis with four GWAS (genome-wide association studies), totalling 5321 cases and 16,666 controls of European descent. We herein describe novel risk loci for B-ALL at 9q21.31 (rs76925697, P = 2.11 × 10<sup>-8</sup>), for high-hyperdiploid ALL at 5q31.1 (rs886285, P = 1.56 × 10<sup>-8</sup>) and 6p21.31 (rs210143 in BAK1, P = 2.21 × 10<sup>-8</sup>), and ETV6-RUNX1 ALL at 17q21.32 (rs10853104 in IGF2BP1, P = 1.82 × 10<sup>-8</sup>). Particularly notable are the pleiotropic effects of the BAK1 variant on multiple haematological malignancies and specific effects of IGF2BP1 on ETV6-RUNX1 ALL evidenced by both germline and somatic genomic analyses. Integration of GWAS signals with transcriptomic/epigenomic profiling and 3D chromatin interaction data for these leukaemia risk loci suggests deregulation of B-cell development and the cell cycle as central mechanisms governing genetic susceptibility to ALL.

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