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Changes in glycogene expression during maturation of dendritic cells

ABSTRACT: Dr. van Kooyk's laboratory is interested in investigating the expression of glycosyltransferases in dendritic cells and the changes in expression associated with maturation. Dr. van Kooyk's laboratory is exploring the function of antigen presenting cells, such as dendritic cells (DC), that regulate viral-antigen recognition, DC trafficking and T cell binding--all processes that initiate immunity or tolerance. Essential in this is the recognition of ligands by C-type lectins and the functional consequences of differential terminal glycosylation that may regulate DC function. RNA preparations from monocytes and dendritic cells (DC) from Ai and Bi (immature DC), Am and Bm (mature DC), and C (monocyte) from healthy human donors were sent to the Microarray Core (E). The RNA was amplified, labeled, and hybridized to the GLYCOv3 microarrays

ORGANISM(S): Homo sapiens

SUBMITTER: Steven Head

PROVIDER: E-GEOD-28933 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Changes in glycogene expression during maturation of dendritic cells

Project description:Dr. van Kooyk's laboratory is interested in investigating the expression of glycosyltransferases in dendritic cells and the changes in expression associated with maturation. Dr. van Kooyk's laboratory is exploring the function of antigen presenting cells, such as dendritic cells (DC), that regulate viral-antigen recognition, DC trafficking and T cell binding--all processes that initiate immunity or tolerance. Essential in this is the recognition of ligands by C-type lectins and the functional consequences of differential terminal glycosylation that may regulate DC function.

2011-04-29 | GSE28933 | GEO

Glycogene expression during maturation of human antigen-presenting cells

2011-04-29 | GSE28946 | GEO

Glycogene expression during maturation of human antigen-presenting cells

Project description:Dr. van Kooyk's laboratory is exploring the function of antigen presenting cells, such as dendritic cells (DC), that regulate viral-antigen recognition, DC trafficking and T cell binding--all processes that initiate immunity or tolerance. Essential in this is the recognition of ligands by C-type lectins and the functional consequences of differential terminal glycosylation that may regulate DC function. In this study, the gene expression profile of glycosylation-related genes is examined in relation to the maturation of human antigen-presenting cells. Two pooled RNA samples, one each from immature and mature human monocyte-derived dendritic cells, were prepared and sent to Microarray Core (E). The RNA was amplified, labeled, and hybridized to the GLYCOv3 microarrays.

2011-04-29 | E-GEOD-28946 | biostudies-arrayexpress

Changes in glycogene expression during maturation of dendritic cells

Project description:To investigate the expression of glycosyltransferases in dendritic cells and the changes in expression associated with maturation. RNA preparations from monocytes (Mo), immature dendritic cells (iDC) and mature dendritic cells (mDC), from different healthy human donors were sent to both Microarray Core (E) and Core(C). The RNA was put on an RNeasy Column, amplified, labeled, and hybridized to the Glycov3 microarrays. Data was sent to Dr. van Kooyk's lab for analysis. The RNA was put on an RNeasy Column, amplified, labeled, and hybridized to the Glycov3 microarrays. Data was sent to Dr. van Kooyk's lab for analysis.

2011-06-14 | E-GEOD-29942 | biostudies-arrayexpress

Changes in glycogene expression during maturation of dendritic cells

Project description:To investigate the expression of glycosyltransferases in dendritic cells and the changes in expression associated with maturation.

2011-06-14 | GSE29944 | GEO

Changes in glycogene expression during maturation of dendritic cells

Project description:To investigate the expression of glycosyltransferases in dendritic cells and the changes in expression associated with maturation.

2011-04-29 | GSE28934 | GEO

Changes in glycogene expression during maturation of dendritic cells

Project description:To investigate the expression of glycosyltransferases in dendritic cells and the changes in expression associated with maturation.

2011-06-14 | GSE29942 | GEO

Changes in glycogene expression during maturation of dendritic cells

Project description:To investigate the expression of glycosyltransferases in dendritic cells and the changes in expression associated with maturation. Healthy normal donor RNA preparations from Resting macrophages (Macro), LPS-mature dendritic cells (LPSMDC), IL-15 immature dendritic cells (IL15DC), Dexamethasone immature dendritic cells (DxMDC) from 2 different donors.

2011-04-29 | E-GEOD-28934 | biostudies-arrayexpress

Changes in glycogene expression during maturation of dendritic cells

Project description:To investigate the expression of glycosyltransferases in dendritic cells and the changes in expression associated with maturation. RNA preparations from 5 different immature and mature dendritic cells subsets, with and without LPS from 2 different donors (20 different samples); (iDC, IL-10 iDC, Dexamethason iDC, Vitamin D3 iDC, im. macrophage), (mDC, IL-10 mDC, Dexamethason mDC, Vitamin D3 mDC, m. macrophage) were sent to both Microarray Core (E) and Core(C). The RNA was purified on an RNeasy Column, amplified, labeled, and hybridized to the Glycov3 microarrays.

2011-06-14 | E-GEOD-29944 | biostudies-arrayexpress

Sampling from proteome to HLA-DR ligandome

Project description:Comprehensive analysis of the complex nature of the Human Leukocyte Antigen (HLA) class II ligandome is of utmost importance to understand the basis for CD4+ T cell mediated immunity and tolerance. Here, we implemented important improvements in the analysis of the repertoire of HLA-DR-presented peptides, using hybrid mass spectrometry-based peptide fragmentation techniques on a ligandome sample isolated from matured human monocyte-derived dendritic cells (DC). The reported data set constitutes nearly 14 thousand unique high-confident peptides, i.e. the largest single inventory of human DC derived HLA-DR ligands to date. From a technical viewpoint the most prominent finding is that no single peptide fragmentation technique could elucidate the majority of HLA-DR ligands, due to the wide range of physical chemical properties displayed by the HLA-DR ligandome. Our in-depth profiling allowed us to reveal a strikingly modest correlation between the abundance levels of surface-presented peptides and the cellular expression of their source proteins. Important selective sieving from the sampled proteome to the ligandome, was evidenced by specificity in the sequences of the core regions both at their N- and C- termini, hence not only reflecting binding motifs but also dominant protease activity associated to the endolysosomal compartments. Moreover, we demonstrate that the HLA-DR ligandome reflects a surface representation of cell-compartments specific for biological events linked to the maturation of monocytes into antigen presenting cells. Our results present new perspectives into the complex nature of the HLA class II system and will aid future immunological studies in characterizing the full breadth of potential CD4+ T cell epitopes relevant in health and disease.

2016-01-25 | PXD002951 | Pride

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