Gene/Protein
Disease
Symptom
Drug
Enzyme
Compound
Pivot Concepts:
Gene/Protein
Disease
Symptom
Drug
Enzyme
Compound
Target Concepts:
Gene/Protein
Disease
Symptom
Drug
Enzyme
Compound
Query: UMLS:C0023418 (
leukemia
)
93,477
document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)
We report a novel translocation t(17;19)(q22;q13.32) found in 100% of blast cells from a pediatric acute myeloid leukemia (AML) patient. Fluorescence in situ hybridization and vectorette polymerase chain reaction were used to precisely map the chromosomal breakpoint located on the derivative chromosome 17 at 352 bp 5' of MPO, encoding myeloperoxidase a highly expressed protein in myeloid cells, and 2,085 bp 5' of
ZNF342
on 19q, encoding a transcription factor expressed in human stem cells and previously implicated in mouse models of
leukemia
. Analysis of RNA levels from the patient sample revealed significant overexpression of
ZNF342
, potentially contributing to AML formation. This is the first report of a translocation in myeloid leukemia occurring only in the promoter/enhancer regions of the two genes involved, similar to translocations commonly found in lymphoid malignancies. Analysis of
ZNF342
protein levels in a large dataset of
leukemia
samples by reverse phase protein array showed that higher levels of
ZNF342
expression in acute lymphoblastic leukemia was associated with poorer outcome (P = 0.033). In the myeloid leukemia samples with the highest
ZNF342
expression, there was overrepresentation of FLT3 internal tandem duplication (P = 0.0016) and AML subtype M7 (P = 0.0002). Thus, overexpression of
ZNF342
by translocation or other mechanisms contributes to
leukemia
biology in multiple hematopoietic compartments.
...
PMID:Overexpression of ZNF342 by juxtaposition with MPO promoter/enhancer in the novel translocation t(17;19)(q23;q13.32) in pediatric acute myeloid leukemia and analysis of ZNF342 expression in leukemia. 1925 75
