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TranscriptomicsGene signature of CLL cells cultured with activated T cells or CD40L-expressing cells
Chronic Lymphocytic Leukemia (CLL) cells multiply in secondary lymphoid tissue but the mechanisms leading to their proliferation are still uncertain. In addition to BCR-triggered signals, other microenvironmental factors might well be involved. In proliferation centres, leukemic B cells are in close...
ORGANISM(S): Homo sapiens 
2013-10-07 | E-GEOD-50572 | biostudies-arrayexpress
TranscriptomicsA Pathobiological Role of the Insulin Receptor in CLL.
Purpose: The chromosomal deletion 11q affects biology and clinical outcome in CLL but del11q-deregulated genes remain incompletely characterized. Results: We have identified differential expression of the insulin receptor (INSR) in CLL, including high-level INSR expression in the majority of CLL wi...
ORGANISM(S): Homo sapiens 
2011-05-05 | E-GEOD-26526 | biostudies-arrayexpress
TranscriptomicsComparative genomic hybridization of human chronic lymphocytic leukemia CLL patients and subtypes of del13q14
Chronic lymphocytic leukemia (CLL) is a biologically heterogeneous illness with a variable clinical course. Loss of chromosomal material on chromosome 13 at cytoband 13q14 is the most frequent genetic abnormality in CLL, but the molecular aberrations underlying del13q14 in CLL remain incompletely...
ORGANISM(S): Homo sapiens 
2008-06-16 | E-GEOD-9250 | biostudies-arrayexpress
TranscriptomicsDefinition and characterization of the systemic T cell dysregulation in untreated indolent B cell lymphoma and very early CLL
Epidemiological data show that the immune system may control or promote emergence and growth of a neoplastic lymphomatous clone. Conversely, systemic lymphomas, especially myeloma and CLL, are associated with clinical immunodeficiency. This prospective controlled study demonstrates substantially red...
ORGANISM(S): Homo sapiens 
2011-03-01 | E-GEOD-23293 | biostudies-arrayexpress
TranscriptomicsAcquired genomic copy number aberrations and survival in chronic lymphocytic leukemia
Genomic aberrations are of predominant importance to the biology and clinical outcome of patients with chronic lymphocytic leukemia (CLL), and FISH-based genomic risk classifications are routinely used in clinical decision making in CLL. One of the known limitations of CLL FISH is the inability to ...
ORGANISM(S): Homo sapiens 
2011-11-29 | E-GEOD-30777 | biostudies-arrayexpress
TranscriptomicsDetection of chromothripsis-like patterns from custom array platform for chronic lymphocytic leukemia diagnosis (qchip Hemo custom array v3)
Chronic lymphocytic leukemia (CLL) is the most frequent leukemia in Western countries. The main genetic alterations associated to this disease are loss of 13q14, loss of 11q23, trisomy 12 and, less frequently, 17p13 losses, and are routinely studied using fluorescence in situ hybridization. These ge...
ORGANISM(S): Homo sapiens 
2015-08-31 | E-GEOD-66922 | biostudies-arrayexpress
TranscriptomicsTranscription profiling of human chronic lymphocytic leukemia samples from patients with stable or progressive disease
Chronic lymphocytic leukemia (CLL) is a heterogeneous malignancy, characterized by a variable clinical course. While clinical and laboratory parameters are increasingly being used to refine prognosis, they do not accurately predict response to commonly used therapy. We used gene expression profilin...
ORGANISM(S): Homo sapiens 
2009-11-11 | E-GEOD-10138 | biostudies-arrayexpress
GenomicsGenome-wide DNA methylation maps in chronic lymphocytic leukemia cells determined by next-generation sequencing
We conducted a genome-wide DNA methylation analysis in CD19+ B-cells from CLL patient and normal control samples using reduced representation bisulfite sequencing (RRBS). The methylation status of 1.8-2.3 million CpGs in the CLL genome was determined; about 45% of these CpGs were located in more tha...
ORGANISM(S): Homo sapiens 
2012-05-10 | E-GEOD-32698 | biostudies-arrayexpress
TranscriptomicsExpression analysis of genes located in the minimally deleted regions of 13q14 and 11q22-23 in chronic lymphocytic leukemia – unexpected expression pattern of the RHO GTPase activator ARHGAP20
In chronic lymphocytic leukemia (CLL), 13q14 and 11q22-23 deletions are found in 2/3 of the cases. 11q22-23 deletions are associated with poor survival, whereas 13q14 deletions as single abnormality are often found in indolent disease forms. The molecular basis for this difference in prognosis is no...
ORGANISM(S): Homo sapiens 
2011-10-13 | E-GEOD-25571 | biostudies-arrayexpress
TranscriptomicsTranscription profiling of human chronic lymphocytic leukemia samples to improve prognosis and predict therapeutic response
Chronic lymphocytic leukemia (CLL) is a heterogeneous malignancy, characterized by a variable clinical course. While clinical and laboratory parameters are increasingly being used to refine prognosis, they do not accurately predict response to commonly used therapy. We used gene expression profilin...
ORGANISM(S): Homo sapiens 
2009-11-11 | E-GEOD-10137 | biostudies-arrayexpress
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