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Open AccessJournal ArticleDOI

Inherited GATA3 variants are associated with Ph-like childhood acute lymphoblastic leukemia and risk of relapse

TLDR
In a genome-wide association study of 511 ALL cases and 6,661 non-ALL controls, a susceptibility locus for Ph-like ALL is identified and genotype at the GATA3 SNP was associated with early treatment response and risk of ALL relapse, providing insights into interactions between inherited and somatic variants and their role in ALL pathogenesis and prognosis.
Abstract
Recent genomic profiling of childhood acute lymphoblastic leukemia (ALL) identified a high-risk subtype with an expression signature resembling that of Philadelphia chromosome-positive ALL and poor prognosis (Ph-like ALL). However, the role of inherited genetic variation in Ph-like ALL pathogenesis remains unknown. In a genome-wide association study (GWAS) of 511 ALL cases and 6,661 non-ALL controls, we identified a susceptibility locus for Ph-like ALL (GATA3, rs3824662; P = 2.17 × 10(-14), odds ratio (OR) = 3.85 for Ph-like ALL versus non-ALL; P = 1.05 × 10(-8), OR = 3.25 for Ph-like ALL versus non-Ph-like ALL), with independent validation. The rs3824662 risk allele was associated with somatic lesions underlying Ph-like ALL (CRLF2 rearrangement, JAK gene mutation and IKZF1 deletion) and with variation in GATA3 expression. Finally, genotype at the GATA3 SNP was also associated with early treatment response and risk of ALL relapse. Our results provide insights into interactions between inherited and somatic variants and their role in ALL pathogenesis and prognosis.

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Citations
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Book ChapterDOI

Molecular origin of childhood acute lymphoblastic leukemia

TL;DR: The genetic basis of a minority of ALL cases remains unknown, and the frequency of these enigmatic cases rises with patient age.
Book ChapterDOI

Pediatric High Risk Leukemia — Molecular Insights

TL;DR: Risk stratification and molecular diagnosis used to identify high risk leukemias and guide treatment are described and specific cytogenetic alterations that contribute to high risk B and T cell acute lymphoblastic leukemia (ALL), as well as infant leukemia are discussed.
Journal ArticleDOI

Immunophenotype of acute lymphoblastic leukemia in minorities- analysis from the SEER database.

TL;DR: This article used the National Cancer Institute Surveillance, Epidemiology, and End Results (SEER) database to delineate the differences in incidence rates of B-ALL and T-ALL across ethnic groups in the United States.
Journal ArticleDOI

New Insights of Human Parvovirus B19 in Modulating Erythroid Progenitor Cell Differentiation.

TL;DR: The bridge between B19 NS1 and Notch signaling pathway or transcriptional factors GATA is summarized to provide a new insight of the potential mechanism of B19-induced differential inhibition of EPCs.
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