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TranscriptomicsHigh-resolution genetic analysis of cancer cell lines with near normal karyotypes
Cancer development is associated with multiple genetic alterations and genomic instability either at the chromosomal or base pair level is generally thought to underlie these changes. However, it is still unknown whether genetic instability is absolutely required for tumorigenesis. Here we investig...
ORGANISM(S): Homo sapiens 
2008-03-14 | E-GEOD-8649 | biostudies-arrayexpress
GenomicsLoss of imprinting at the CTCF binding sites in the DLK1-DIO3 domain reactivates microRNA expression in acute promyelocytic leukaemia
We report the DNA-methylation profiling of 10 regions selected from the DLK1-DIO3 domain on chromosome 14q32 in BM/PB samples from patients with acute promyelocytic leukaemia (APL), other subclasses of acute myeloid leukaemia and healthy donors, using high-throughput amplicon bisulfite sequencing wi...
ORGANISM(S): Homo sapiens 
2014-02-13 | E-GEOD-42543 | biostudies-arrayexpress
TranscriptomicsAffymetrix SNP array data for low-grade astrocytoma samples
Copy number analysis of 21 paediatric low-grade astrocytomas identified a discrete copy number gain of 1.9Mb in chromosome band 7q34. The gain was present in 12/14 cerebellar pilocytic astrocytomas. Subsequent analysis of tumour cDNA indentified a novel gene fusion between KIAA1549 and BRAF in these...
ORGANISM(S): Homo sapiens 
2010-04-09 | E-GEOD-14960 | biostudies-arrayexpress
TranscriptomicsGenotyping of human diagnosic AML samples reveals frequent partial uniparental disomy due to somatic recombination in acute myeloid leukemias
Genome-wide analysis of single nucleotide polymorphisms in 64 acute myeloid leukemias has revealed that 20% exhibited large regions of homozygosity that could not be accounted for by visible chromosomal abnormalities in the karyotype. Further analysis confirmed that these patterns were due to partia...
ORGANISM(S): Homo sapiens 
2008-06-15 | E-GEOD-7490 | biostudies-arrayexpress
TranscriptomicsIdentification of novel sub-microscopic copy number aberrations in adult acute myeloid leukemia
In this study we have screened 56 pairs of AML samples for cryptic copy number aberration and loss-of-heterozygosity. We have identified 80 CNAs among 56 patient samples; 21 containing <5 genes while 11 contained or were present within a single gene. Four (7%) patients carried gains at sub-telomeres...
ORGANISM(S): Homo sapiens 
2012-03-08 | E-GEOD-20672 | biostudies-arrayexpress
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