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In utero origin of t(8;21) AML1-ETO translocations in childhood acute myeloid leukemia
Abstract
Recent reports have established the prenatal origin of leukemia translocations and resultant fusion genes in some patients, including MLL-AF4 translocations in infants and TEL-AML1 translocations in children. We now report evidence for the prenatal origin of a translocation in childhood acute myeloid leukemia (AML). The t(8;21) AML1-ETO translocations were sequenced at the genomic level in 10 diagnostic leukemia samples from children with available neonatal Guthrie blood spots. Clonotypic genomic AML1-ETO sequences were detected in the Guthrie spots for 5 individuals, providing unambiguous evidence of prenatal origin in these cases. Two of these patients were older than 10 years of age at diagnosis, indicative of a protracted postnatal latency. Three of the patients were assessed for the persistence of genomic fusion sequences in complete clinical remission samples and were found to be positive. These data indicate that t(8;21) in childhood AML can arise in utero, possibly as an initiating event in childhood AML, and may establish a long-lived or stable parental clone that requires additional secondary genetic alterations to cause leukemia.
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Metadata
- Authors
- Wiemels, J. L.
- Venue
- Blood
- Publisher
- American Society of Hematology
- Published
- 2002-05-15
- Volume
- 99
- Issue
- 10
- Pages
- 3801-3805
- ISSN
- 0006-4971 (ISSN-L)
- 1528-0020
- OpenAlex
- W2129141759
- Cited by
- 290
- References
- 0
- FWCI
- 10.26
- Type
- journal article
- Language
- en
- Open access
- closed
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