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Pivot Concepts:
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Target Concepts:
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Query: UMLS:C0079731 (
B-cell lymphoma
)
16,671
document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)
Similar to most cancers, genome-wide DNA methylation profiles are commonly altered in pediatric acute lymphoblastic leukemia (ALL); however, recent observations highlight that a large portion of malignancy-associated DNA methylation alterations are not accompanied by related gene expression changes. By analyzing and integrating the methylome and transcriptome profiles of pediatric B-cell ALL cases and primary tissue controls, we report 325 genes hypermethylated and downregulated and 45 genes hypomethylated and upregulated in pediatric B-cell ALL, irrespective of subtype. Repressed cation channel subunits and cAMP signaling activators and transducers are overrepresented, potentially indicating a reduced cellular potential to receive and propagate apoptotic signals. Furthermore, we report specific DNA methylation alterations with concurrent gene expression changes within individual ALL subtypes. The ETV6-RUNX1 translocation was associated with downregulation of
ASNS
and upregulation of the EPO-receptor, while Hyperdiploid patients (> 50 chr) displayed upregulation of
B-cell lymphoma
(BCL) members and repression of PTPRG and FHIT. In combination, these data indicate genetically distinct B-cell ALL subtypes contain cooperative epimutations and genome-wide epigenetic deregulation is common across all B-cell ALL subtypes.
...
PMID:Epigenetic deregulation in pediatric acute lymphoblastic leukemia. 2439 48
