The rich history surrounding Diamond-Blackfan anaemia (DBA), originally described in 1938 as congenital hypoplastic anaemia reflects the evolution of paediatric haematology. In their paper, the authors present the results of a clinical trial using the thrombopoietin-mimetic agent eltrombopag to treat red cell failure in DBA. A low response rate belies the importance of this work. Commentary on: Duncan et al. Treatment of refractory/relapsed Diamond-Blackfan anaemia with eltrombopag. Br J Haematol 2024;204:2077-2085.
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http://dx.doi.org/10.1111/bjh.19404 | DOI Listing |
Am J Med Genet A
December 2024
Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, New York, New York, USA.
Diamond Blackfan anemia (DBA) is an autosomal dominant disorder with a heterogeneous clinical presentation which may include macrocytic anemia typically presenting in the first year of life, growth retardation, and congenital malformations in 30%-50% of patients. This phenotypic variability is partially explained by genotype-phenotype correlations, with several ribosomal protein genes implicated in this disorder. Most cases are due to de novo variants, but familial occurrences highlight variable expressivity and reduced penetrance.
View Article and Find Full Text PDFOrphanet J Rare Dis
December 2024
Hematology Unit, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy.
Diamond-Blackfan anemia (DBA) is a rare constitutional inherited bone marrow failure syndrome (iBMF) characterized by progressive severe non-regenerative anemia and congenital abnormalities. Diagnosis is made by identification of a DBA-causing variant, typically in a ribosomal protein gene. More than 99% of patients are diagnosed in the pediatric age, but clinical manifestation may be mild and severe anemia can occur later in the patient's life.
View Article and Find Full Text PDFEJHaem
December 2024
Clinical Genetics Branch, Division of Cancer Epidemiology and Genetics National Cancer Institute, NIH, Rockville Bethesda Maryland USA.
Introduction: Diamond Blackfan anaemia (DBA) is a rare disorder characterized by failure of red blood cell production, congenital abnormalities and cancer predisposition, primarily caused by pathogenic germline variants in genes encoding ribosomal proteins.
Methods: We conducted a genotype-phenotype and outcome study of 121 patients with DBA spanning the 20-year history of the National Cancer Institute's Inherited Bone Marrow Failure Syndromes study. Patient phenotypes were compared by large versus small ribosomal protein genes, across genes with >5 cases (, , and ) and by type of pathogenic variants (hypomorphic versus null, large deletions versus others).
Mol Ther
December 2024
Department of Hematology, St. Jude Children's Research Hospital, Memphis, TN 38105, USA. Electronic address:
Diamond-Blackfan anemia syndrome (DBAS) is an inherited bone marrow failure disorder caused by haploinsufficiency of ribosomal protein genes, most commonly RPS19. Limited access to patient hematopoietic stem/progenitor cells (HSPCs) is a major roadblock to developing novel therapies for DBAS. We developed a novel self-inactivating third-generation RPS19-encoding lentiviral vector (LV), termed "SJEFS-S19", for DBAS gene therapy.
View Article and Find Full Text PDFSignal Transduct Target Ther
December 2024
The MOE Key Laboratory of Cell Proliferation and Differentiation, School of Life Sciences, Peking University, Beijing, 100871, China.
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