Abstract
Chronic myelomonocytic leukemia (CMML) is a myelodysplastic syndrome characterized by abnormal clonal myeloid proliferation and by progression to acute myelogenous leukemia (AML). CMML thus offers an opportunity to study early genetic events in the transition to AML. A recently recognized subgroup of CMML has a t(5;12)(q33;p13) balanced translocation. We report that the consequence of the t(5;12) translocation is expression of a fusion transcript in which the tyrosine kinase domain of the platelet-derived growth factor receptor beta (PDGFR beta) on chromosome 5 is coupled to a novel ets-like gene, tel, on chromosome 12. The tel-PDGFR beta fusion demonstrates the oncogenic potential of PDGFR beta and may provide a paradigm for early events in the pathogenesis of AML.
Publication types
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Research Support, Non-U.S. Gov't
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Research Support, U.S. Gov't, P.H.S.
MeSH terms
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Amino Acid Sequence
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Base Sequence
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Cell Transformation, Neoplastic
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Chromosome Mapping
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Chromosomes, Human, Pair 12*
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Chromosomes, Human, Pair 5*
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DNA-Binding Proteins / chemistry
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DNA-Binding Proteins / genetics*
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DNA-Binding Proteins / physiology
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ETS Translocation Variant 6 Protein
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Humans
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Karyotyping
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Leukemia, Myeloid, Acute / genetics
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Leukemia, Myelomonocytic, Chronic / genetics*
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Molecular Sequence Data
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Polymerase Chain Reaction
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Proto-Oncogene Proteins c-ets
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RNA, Messenger / analysis
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Receptors, Platelet-Derived Growth Factor / genetics*
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Receptors, Platelet-Derived Growth Factor / physiology
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Repressor Proteins*
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Sequence Analysis, DNA
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Transcription Factors / chemistry
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Transcription Factors / genetics*
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Transcription Factors / physiology
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Transcription, Genetic
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Translocation, Genetic / genetics*
Substances
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DNA-Binding Proteins
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Proto-Oncogene Proteins c-ets
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RNA, Messenger
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Repressor Proteins
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Transcription Factors
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Receptors, Platelet-Derived Growth Factor
Associated data
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GENBANK/U11732
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GENBANK/Z35761