Cited by 1,422Acute Lymphoblastic Leukemia researchLymphoma Diagnosis and TreatmentGenomic variations and chromosomal abnormalities

Deletion of IKZF1 and Prognosis in Acute Lymphoblastic Leukemia

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Mullighan, Charles G., Su, Xiaoping, Zhang, Jinghui, Radtke, Ina, Phillips, Letha A.A., Miller, Christopher B., Ma, Jing, Liu, Wei +20 more·2009·New England Journal of Medicine

Abstract

BACKGROUND: Despite best current therapy, up to 20% of pediatric patients with acute lymphoblastic leukemia (ALL) have a relapse. Recent genomewide analyses have identified a high frequency of DNA copy-number abnormalities in ALL, but the prognostic implications of these abnormalities have not been defined. METHODS: We studied a cohort of 221 children with high-risk B-cell-progenitor ALL with the use of single-nucleotide-polymorphism microarrays, transcriptional profiling, and resequencing of samples obtained at diagnosis. Children with known very-high-risk ALL subtypes (i.e., BCR-ABL1-positive ALL, hypodiploid ALL, and ALL in infants) were excluded from this cohort. A copy-number abnormality was identified as a predictor of poor outcome, and it was then tested in an independent validation cohort of 258 patients with B-cell-progenitor ALL. RESULTS: More than 50 recurring copy-number abnormalities were identified, most commonly involving genes that encode regulators of B-cell development (in 66.8% of patients in the original cohort); PAX5 was involved in 31.7% and IKZF1 in 28.6% of patients. Using copy-number abnormalities, we identified a predictor of poor outcome that was validated in the independent validation cohort. This predictor was strongly associated with alteration of IKZF1, a gene that encodes the lymphoid transcription factor IKAROS. The gene-expression signature of the group of patients with a poor outcome revealed increased expression of hematopoietic stem-cell genes and reduced expression of B-cell-lineage genes, and it was similar to the signature of BCR-ABL1-positive ALL, another high-risk subtype of ALL with a high frequency of IKZF1 deletion. CONCLUSIONS: Genetic alteration of IKZF1 is associated with a very poor outcome in B-cell-progenitor ALL.

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Authors
Mullighan, C. G., Su, X., Zhang, J., Radtke, I., Phillips, L. A. A., Miller, C. B., Ma, J., Liu, W., Cheng, C., Schulman, B. A., Harvey, R. C., Chen, I.-M., Clifford, R. J., Carroll, W. L., Reaman, G., Bowman, W. P., Devidas, M., Gerhard, D. S., Yang, W., Relling, M. V., Shurtleff, S. A., Campana, D., Borowitz, M. J., Pui, C.-H., Smith, M., Hunger, S. P., Willman, C. L., & Downing, J. R.
Affiliations
  • St. Jude Children's Research Hospital (US)
  • National Institutes of Health (US)
  • UNM Comprehensive Cancer Center (US)
  • New York University (US)
  • Children's National (US)
  • Cook Children's Medical Center (US)
  • University of Florida Health (US)
  • Children's Hospital Colorado (US)
Venue
New England Journal of Medicine
Published
2009-01-29
Volume
360
Issue
5
Pages
470-480
ISSN
  • 0028-4793 (ISSN-L)
  • 1533-4406
OpenAlex
W2040329520
Cited by
1,422
References
37
Citations by year
2026: 30 · 2025: 50 · 2024: 66 · 2023: 90 · 2022: 66 · 2021: 103 · 2020: 92 · 2019: 69 · 2018: 74 · 2017: 105 · 2016: 96 · 2015: 101 · 2014: 84 · 2013: 90 · 2012: 98
FWCI
101.04
Type
journal article
Language
en
Open access
Locations
  • New England Journal of Medicine (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • U.S. Public Health Service (N01C012400, 21765)
  • National Cancer Institute (CA 098543, R01CA086011, U10CA098413, U01CA157937, R01 CA86011, U10CA098543, U01CA114762, CA114762, P30CA021765)
  • National Institute of General Medical Sciences (U01 GM61393, U01GM061374, U01-GM-61374, U01GM061393)
Topics
  • Health Sciences › Medicine › Public Health, Environmental and Occupational Health › Acute Lymphoblastic Leukemia research
  • Health Sciences › Medicine › Pathology and Forensic Medicine › Lymphoma Diagnosis and Treatment
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genomic variations and chromosomal abnormalities
Keywords
IKZF1 deletion, acute lymphoblastic leukemia, pediatric leukemia, copy number abnormalities, prognosis, PAX5, Ikaros, B cell development, gene expression signatures, relapse
MeSH terms
B-Lymphocytes, Child, DNA Mutational Analysis, Genotype, Hematopoietic Stem Cells, Humans, Prognosis, Recurrence, Cohort Studies, Precursor B-Cell Lymphoblastic Leukemia-Lymphoma, Trans-Activators, Gene Expression, Treatment Outcome, Gene Deletion, Drug Resistance, Neoplasm, Mutation, Missense, Gene Expression Profiling, Ikaros Transcription Factor, PAX5 Transcription Factor

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