ArticleModern pathology : an official journal of the United States and Canadian Academy of Pathology, Inc2020
iAMP21 in acute myeloid leukemia is associated with complex karyotype, TP53 mutation and dismal outcome.
Article in Modern pathology : an official journal of the United States and Canadian Academy of Pathology, Inc, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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5 citing papers in PubMed, 13 citations in OpenAlex.
- Genomic landscape of childhood acute lymphoblastic leukemia in Malaysia: insights from array-CGH.Molecular cytogenetics · 2025Article
- Insights into the Clinical, Biological and Therapeutic Impact of Copy Number Alteration in Cancer.International journal of molecular sciences · 2024Review
- Prospective evaluation of genome sequencing to compare conventional cytogenetics in acute myeloid leukemia.Blood cancer journal · 2023Article
- Optical genome mapping refines cytogenetic diagnostics, prognostic stratification and provides new molecular insights in adult MDS/AML patients.Blood cancer journal · 2022Article
- 21q22 amplification detection in three patients with acute myeloid leukemia: cytogenomic profiling and literature review.Molecular cytogenetics · 2022Article
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10 authors at 1 institution in 1 country.
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Abstract
Acute myeloid leukemia (AML) with intrachromosomal amplification of chromosome 21 (iAMP21) is rare and has not been well characterized. We report 13 patients, 7 men and 6 women, with a median age of 65 years. Eleven patients presented with AML with myelodysplasia-related changes, and two patients had therapy-related AML. Cytopenias were detected in all patients (11 pancytopenia and two bi-lineage cytopenia). Myelodysplastic changes were observed in all 11 patients with adequate cells to evaluate. Myelofibrosis was present in ten patients. All patients had a complex karyotype, including abnormalities of chromosomes 5, 7, 17, and hsr(21)(q22), and ten patients showed TP53 deletion and/or mutation. Eleven patients received AML-based chemotherapy, one of whom also received hematopoietic stem cell transplant. By the end of the last follow-up, eight patients died with median survival of 3.2 months, four patients were alive with persistent AML, and one was in complete remission. The median overall survival was 6 months for all patients. We conclude that AML with iAMP21 is often associated with cytopenias, myelodysplasia, a complex karyotype, TP53 mutation/deletion, and a poor prognosis despite current therapies.
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