Expression of BCR-ABL1 oncogene relative to ABL1 gene changes overtime in chronic myeloid leukemia

• Using a quantitative single nucleotide polymorphism (SNP) assay we have investigated the changes in the expression of the BCR-ABL1 oncogene relative to the wild-type ABL1 and BCR alleles in cells from chronic myeloid leukemia (CML) patients not responding to therapy. The results show a progressive increase in the BCR-ABL1 oncogene expression at the expense of decreased expression of the ABL1 allele, not involved in the fusion. No relative changes in the expression of the two BCR alleles were found. These results demonstrate that allele-specific charities in gene expression, with selective, progressive silencing of the wild-type A BL1 allele in favor of the oncogenic BCR-ABL1 allele occur in CML patients with therapy-resistant disease.

Keyword

imbalanced allelic expression

quantitative SNP assay

oncogene

BCR-ABL1 expression

disease progression

MEDICINE

MEDICIN

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pop (subject category)

art (subject category)