Cited by 272Blood disorders and treatmentsGenomics and Rare DiseasesImmunodeficiency and Autoimmune Disorders

The Genetic Landscape of Diamond-Blackfan Anemia

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Ulirsch, Jacob C., Verboon, Jeffrey M., Kazerounian, Shideh, Guo, Michael H., Yuan, Daniel, Ludwig, Leif S., Handsaker, Robert E., Abdulhay, Nour J. +34 more·2018·The American Journal of Human Genetics

Published version of a preprint

Abstract

Diamond-Blackfan anemia (DBA) is a rare bone marrow failure disorder that affects 7 out of 1,000,000 live births and has been associated with mutations in components of the ribosome. In order to characterize the genetic landscape of this heterogeneous disorder, we recruited a cohort of 472 individuals with a clinical diagnosis of DBA and performed whole-exome sequencing (WES). We identified relevant rare and predicted damaging mutations for 78% of individuals. The majority of mutations were singletons, absent from population databases, predicted to cause loss of function, and located in 1 of 19 previously reported ribosomal protein (RP)-encoding genes. Using exon coverage estimates, we identified and validated 31 deletions in RP genes. We also observed an enrichment for extended splice site mutations and validated their diverse effects using RNA sequencing in cell lines obtained from individuals with DBA. Leveraging the size of our cohort, we observed robust genotype-phenotype associations with congenital abnormalities and treatment outcomes. We further identified rare mutations in seven previously unreported RP genes that may cause DBA, as well as several distinct disorders that appear to phenocopy DBA, including nine individuals with biallelic CECR1 mutations that result in deficiency of ADA2. However, no new genes were identified at exome-wide significance, suggesting that there are no unidentified genes containing mutations readily identified by WES that explain >5% of DBA-affected case subjects. Overall, this report should inform not only clinical practice for DBA-affected individuals, but also the design and analysis of rare variant studies for heterogeneous Mendelian disorders.

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  • Diamond-Blackfan anemia is a rare disorder characterized by impaired erythropoiesis; most patients have loss-of-function mutations in one of twenty-six distinct ribosome protein genes.

    “For instance, Diamond-Blackfan anemia (DBA) is a rare disorder that is characterized by impaired erythropoiesis; most patients have loss-of-function mutations in one of twenty-six distinct ribosome protein genes (Ulirsch et al., 2018).”

    From Unraveling Hematopoiesis through the Lens of Genomics (2020) · cites this paper as Ulirsch et al., 2018

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  1. Lord, J., Gallone, G., Short, P.J., McRae, J.F., Ironfield, H., Wynn, E.H., Gerety, S.S., He, L., Kerr, B., Johnson, D.S., et al. (2018). The contribution of non-canonical splicing mutations to severe dominant developmental disorders. bioRxiv. https:// doi.org/10.1101/256636. · DOI

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Authors
Ulirsch, J. C., Verboon, J. M., Kazerounian, S., Guo, M. H., Yuan, D., Ludwig, L. S., Handsaker, R. E., Abdulhay, N. J., Fiorini, C., Genovese, G., Lim, E. T., Cheng, A., Cummings, B. B., Chao, K. R., Beggs, A. H., Genetti, C. A., Sieff, C. A., Newburger, P. E., Niewiadomska, E., Matysiak, M., Vlachos, A., Lipton, J. M., Atsidaftos, E., Glader, B., Narla, A., Gleizes, P.-E., O’Donohue, M.-F., Montel-Lehry, N., Amor, D. J., McCarroll, S. A., O’Donnell-Luria, A. H., Gupta, N., Gabriel, S. B., MacArthur, D. G., Lander, E. S., Lek, M., Da Costa, L., Nathan, D. G., Korostelev, A. A., Do, R., Sankaran, V. G., & Gazda, H. T.
Affiliations
  • Broad Institute (US)
  • Boston Children's Hospital (US)
  • University of Massachusetts Chan Medical School (US)
  • Medical University of Warsaw (PL)
  • Feinstein Institute for Medical Research (US)
  • Stanford Medicine (US)
  • Centre National de la Recherche Scientifique (FR)
  • The University of Melbourne (AU)
  • Icahn School of Medicine at Mount Sinai (US)
Corresponding author
  • Sankaran, Vijay G.
  • Gazda, Hanna T.
Venue
The American Journal of Human Genetics
Publisher
Elsevier BV
Published
2018-12
Volume
103
Issue
6
Pages
930-947
ISSN
0002-9297 (ISSN-L)
OpenAlex
W2952358073
Cited by
272
References
88
Citations by year
2026: 25 · 2025: 29 · 2024: 27 · 2023: 32 · 2022: 38 · 2021: 46 · 2020: 49 · 2019: 23 · 2018: 2 · 2017: 1
FWCI
18.40
Type
journal article
Language
en
Update notices
erratum (2019-02-07)
Open access
Locations
  • The American Journal of Human Genetics (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • HAL (submittedVersion, other-oa)
Funders
  • National Institutes of Health (R01 DK103794, R33 HL120791, R01 HL107558, K02 HL111156, UM1 HG008900, R01 HG009141)
  • DBA Foundation
  • New York Stem Cell Foundation
  • ANR
  • ERA-NET programme E-RARE3 (ANR-15-RAR3-0007-04)
  • NIH (5T32 GM007226-43)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Blood disorders and treatments
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genomics and Rare Diseases
  • Life Sciences › Immunology and Microbiology › Immunology › Immunodeficiency and Autoimmune Disorders
Keywords
Diamond-Blackfan anemia, bone marrow failure, ribosomal protein genes, ribosome, genotype-phenotype correlation, CECR1, ADA2 deficiency, phenocopy, splice site mutation, gene deletion, congenital malformations, treatment outcomes, monogenic disorders
MeSH terms
Exome Sequencing, Adolescent, Child, Child, Preschool, Exons, Female, Humans, Male, Mutation, Phenotype, Ribosomal Proteins, Ribosomes, Cohort Studies, Gene Deletion, Sequence Analysis, RNA, Anemia, Diamond-Blackfan, Intercellular Signaling Peptides and Proteins, Genetic Association Studies, Exome

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