Gene expression profile in CD14+ monocytes in patients with SSc or healthy controls
Ontology highlight
ABSTRACT:
ORGANISM(S): Homo sapiens
SUBMITTER: Hidekata Yasuoka
PROVIDER: E-GEOD-44999 | biostudies-arrayexpress |
REPOSITORIES: biostudies-arrayexpress
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Project description:To clarify the role of monocyte in the pathogenesis of SSc, we analyzed gene and protein expression in monocyte from SSc and healthy controls in order to identify the molecules which were associated with pathogenesis of SSc. After the screeining using gene and protein expression profiles, functional role of the candidate molecules were further analyzed to clarify the role in the pathogenesis of SSc.
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Project description:To clarify the role of monocyte in the pathogenesis of SSc, we analyzed gene and protein expression in monocyte from SSc and healthy controls in order to identify the molecules which were associated with pathogenesis of SSc. After the screeining using gene and protein expression profiles, functional role of the candidate molecules were further analyzed to clarify the role in the pathogenesis of SSc.
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Project description:To clarify the role of monocyte in the pathogenesis of SSc, we analyzed gene and protein expression in monocyte from SSc and healthy controls in order to identify the molecules which were associated with pathogenesis of SSc. After the screeining using gene and protein expression profiles, functional role of the candidate molecules were further analyzed to clarify the role in the pathogenesis of SSc.
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Project description:From the analysis of all genes included in the array a number of individual genes were identified as dys-regulated in HIV-1 infected patients compared to healthy controls. In particular, increased CXCL13 expression in all individual patient samples. Abstract from publication: HIV-1 infection is associated with B-cell abnormalities such as hypergammaglobulinemia, poor immunisation responses and loss of serological memory. To determine whether altered expression of chemokine receptors and their ligands may play a role in B-cell dysfunctions during HIV-1 infection, the expression of CXCR4, CXCR5 and CCR7 receptors and their respective ligands on CD19+ B-cells were examined in HIV-1 infected patients and controls. We report a decreased CXCR5 expression on B-cells from patients (p<0.05), a phenomenon associated with a low CD4 T-cell count (<350 cells/µl). Interestingly, an increased expression of CXCL13, the ligand for CXCR5, was found in peripheral B-cells from HIV-1 infected patients. Moreover upon B-cell activation in vitro, CXCL13 was secreted in culture. In addition, CXCL13 positive B-cells were also found in the lymph nodes of HIV-1 infected patients, but not in control tissue. B-cell migration towards CXCL13, CXCL12 and CCL21, ligands for CXCR5, CXCR4 and CCR7, was also evaluated. In patients with a low CD4 Tcell count, migration towards all ligands was increased. Our findings indicate that altered expression of the chemokine receptor-ligand pair, CXCR5/CXCL13 may participate in the establishment of B-cell dysfunctions during HIV-1 infection. Total RNA was extracted from purified peripheral B-cells from 4 controls and 4 patients.
2010-06-25 | E-GEOD-12597 | biostudies-arrayexpress
Project description:Samples E12/E13/E14/E16/E18: We aims to screen out different gene expression profile in Embryo kidney on different gestation stages of the Notch signaling pathway Results from the various study components can help to screening important candidate genes during embryonic kidney development. Keywords: Embryo kidney, Development, Notch signaling pathway, Oligonucleotide Array Sequence Analysis The Oligo GEArray Assay comprises various components: RNA isolation,Assesing RNA yield and quality,cRNA labeling and synthesis,Hybridization,Chemiluminescent detection and Image acquisition and data analysis. Samples E12: This study has been accomplished with Embryo kidney on gestation 12, 3 techinical replicates. Samples E13: This study has been accomplished with Embryo kidney on gestation 13, 3 techinical replicates. Samples E14: This study has been accomplished with Embryo kidney on gestation 14, 2 techinical replicates. Samples E16: This study has been accomplished with 1Embryo kidney on gestation 16, 2 techinical replicates. Samples E18: This study has been accomplished with Embryo kidney on gestation 18, 2 techinical replicates.
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