ArticleMolecular diagnosis & therapy2007
Identification of leukemia-specific fusion gene transcripts with a novel oligonucleotide array.
Article in Molecular diagnosis & therapy, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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Who cites it
3 citing papers in PubMed.
- MICB Allele Genotyping on Microarrays by Improving the Specificity of Extension Primers.PloS one · 2015Article
- Analyzing the gene expression profile of pediatric acute myeloid leukemia with real-time PCR arrays.Cancer cell international · 2012Article
- Diagnostic microarrays in hematologic oncology: applications of high- and low-density arrays.Molecular diagnosis & therapy · 2009Review
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Authors and funding
11 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundIdentification of specific chromosomal translocations is essential for the diagnosis and prognosis of leukemia. In this study, we employ DNA microarray technology to detect chromosomal aberrations in patients with chronic myeloid leukemia (CML) and acute myeloid leukemia (AML), as well as in leukemic cell lines.
methodsReverse transcription using a random 9-mer primer was performed with total RNA from patients and leukemic cells lines. Multiplex PCR reactions using four groups of primer sets were then performed for amplification of cDNA from reverse-transcribed total RNA samples. Normal and fusion sequences were distinguished by hybridization of the amplified cDNA to a selective oligonucleotide array (SOA) containing 20-30mer synthetic probes. A total of 23 sets of oligomers were fabricated on glass slides for the detection of normal and fusion genes, as follows: BCR/ABL, AML/EAP, AML/ETO, AML/MDS, PML/RARA, NUMA1/RARA, PLZF/RARA, and CBFB/MYH.
resultsGene translocation in leukemia was effectively identified with the SOA containing various leukemia-specific fusion and normal control sequences. Leukemic fusion sequences from patients and cell lines hybridized specifically to their complementary probes. The probe sets differing by approximately 50% at their 5' or 3' ends could distinguish between normal and fusion sequences. The entire process of detection was completed within 8 hours using the SOA method.
conclusionsProbe sets on SOA can effectively discriminate between leukemia-specific fusion and normal sequences with a chip hybridization procedure. The oligonucleotide array presents several advantages in identifying leukemic gene translocations, such as multiplex screening, relatively low cost, and speed.
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