This work focuses on understanding the molecular basis of the immune dysfunctions in Idiopathic CD4+ T cells lymphocytopenia (ICL). ICL is a rare haematological disorder of unknown origin, characterized by a profound and persistent CD4+ T-cell defect, which predisposes to life threatening opportunistic infections very similar to those seen in AIDS. To analyse more in depth the functional pathways involved in ICL pathogenesis, we conducted gene expression profiling of CD4+ T-cells isolated from blood samples from ICL, sarcoidosis and healthy individuals. Our analyses have revealed specific CD4+ T-cells gene expression signatures in ICL associated with defective TCR activation threshold, expansion of the Treg-cell compartment and interestingly with accelerated immune aging.
DUSP4-mediated accelerated T-cell senescence in idiopathic CD4 lymphopenia.
Sex
View SamplesPatients with Klinefelter Syndrome have the karyotype 47,XXY. These men are suffering from hypergonadotropic hypogonadism and are infertile. It is debated whether the different hormonal constitution observed in these patients or different gene expression
Gene expression patterns in relation to the clinical phenotype in Klinefelter syndrome.
Sex, Specimen part
View SamplesDespite much investigation, mechanisms conferring stage specific responsiveness of the corpus luteum (CL) to prostaglandin F2 (PG) are unknown. The objective of this study was to identify PG- induced changes in transcriptome of bovine CL specific to d 11 ( PG responsive) but not d 4 (PG refractory) CL associated with luteolysis. CL were collected from heifers at 0, 4 and 24 h following PG injection on d 4 and 11 of the estrous cycle (n = 5 animals/treatment) and isolated RNA labeled and hybridized to Affymetrix GeneChip Bovine Genome Arrays. At 4 and 24 h post PG respectively, 221 (d 4) and 661 (d 11) and 248 (d 4) and 1419 (d 11) regulated genes were identified.
Regulation of angiogenesis-related prostaglandin f2alpha-induced genes in the bovine corpus luteum.
Specimen part, Treatment
View SamplesExpression data from CD34+ hematopoietic cells transduced with control or anti-SLPI shRNA, serum starved and treated with G-CSF.
A lack of secretory leukocyte protease inhibitor (SLPI) causes defects in granulocytic differentiation.
Specimen part
View SamplesThis SuperSeries is composed of the SubSeries listed below.
Radiogenomic Analysis of F-18-Fluorodeoxyglucose Positron Emission Tomography and Gene Expression Data Elucidates the Epidemiological Complexity of Colorectal Cancer Landscape.
Specimen part
View SamplesGene expression patterns of testicular seminoma were analysed applying oligonucleotide microarrays in 40 specimens of different tumour stages (pT1, pT2, pT3) and in 3 normal testes.
Gene signatures of testicular seminoma with emphasis on expression of ets variant gene 4.
No sample metadata fields
View SamplesColorectal cancer is a highly heterogeneous disease, with variable molecular pathogenesis, involving multiple genomic and epigenetic alterations. Despite the significant advances in the diagnosis and treatment of colorectal cancer, it remains a major cause of morbidity and mortality, especially for countries in Northern America and Europe, as also in New Zealand & Australia. In this direction, the introduction of gene expression signatures derived from multiple layers of molecular & clinical dissection, may resolve the problems of heterogeneity and improve robust disease stratification
Radiogenomic Analysis of F-18-Fluorodeoxyglucose Positron Emission Tomography and Gene Expression Data Elucidates the Epidemiological Complexity of Colorectal Cancer Landscape.
Specimen part
View SamplesColorectal cancer is a highly heterogeneous disease, with variable molecular pathogenesis, involving multiple genomic and epigenetic alterations. Despite the significant advances in the diagnosis and treatment of colorectal cancer, it remains a major cause of morbidity and mortality, especially for countries in Northern America and Europe, as also in New Zealand & Australia. In this direction, the introduction of gene expression signatures derived from multiple layers of molecular & clinical dissection, may resolve the problems of heterogeneity and improve robust disease stratification.
Radiogenomic Analysis of F-18-Fluorodeoxyglucose Positron Emission Tomography and Gene Expression Data Elucidates the Epidemiological Complexity of Colorectal Cancer Landscape.
Specimen part
View SamplesConrad et al. Nature 456, 344349 (2008) have generated human adult germline stem cells (haGSCs) from human testicular tissue, which they claim have similar pluripotent properties to human embryonic stem cells (hESCs). Here we investigate the pluripotency of haGSCs by using global gene-expression analysis based on their gene array data and comparing the expression of pluripotency marker genes in haGSCs and hESCs, and in haGSCs and human fibroblast samples derived from different laboratories, including our own. We find that haGSCs and fibroblasts have a similar gene-expression profile, but that haGSCs and hESCs do not. The pluripotency of Conrad and colleagues haGSCs is therefore called into question.
Human adult germline stem cells in question.
Specimen part
View SamplesConventional anti-cancer drug screening is typically performed in the absence of accessory cells (e.g. stromal cells) of the tumor microenvironment, which can profoundly alter anti-tumor drug activity. To address this major limitation, we have developed assays (e.g. the tumor cell-specific in vitro bioluminescence imaging (CS-BLI) assay) to selectively quantify tumor cell viability, in presence vs. absence of non-malignant stromal cells or drug treatment. These assays have allowed us to identify that neoplastic cells from diverse malignancies exhibit stroma-induced resistance to different anti-tumor agents. In this analysis, we evaluated the molecular changes triggered in myeloma cells by their in vitro interaction with stromal cells. The transcriptional profile of 3 human multiple myeloma (MM) cell lines (MM.1S, MM.1R, INA-6) co-cultured with stromal cells vs. when cultured alone was characterized by oligonucleotide microarray analysis, using the human U133 plus 2.0 Affymetrix GeneChip.
Tumor cell-specific bioluminescence platform to identify stroma-induced changes to anticancer drug activity.
Cell line
View Samples