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Gene expression data from yerba mate treated and non-treated cultured PBMCs activated with phytohemagglutinin

ABSTRACT: Yerba mate (YM) has been shown to have anti-inflammatory properties in several studies. However, this effect has been found mainly in obesity-related in inflammation. The aim of this work was to study the effect of YM in cultured peripheral blood mononuclear cells to see whether it has anti-inflammatory properties. We stimulated peripheral blood mononuclear cells in vitro with phitohemaglutinin in the presence of yerba mate and determined their activation measuring the the expression of CD25 by flow cytometry. We observed that YM treatment produced a dose-dependent reduction in PBMC activation (CD25 positive cells) when they were stimulated with PHA. This effect was also observed in T cells (CD3 positive) subpopulation. Microarray analysis revealed the differential expression of 128 genes in YM-treated cells. According to a protein-protein interaction database, these genes were highly connected and they are involved in inflammatory response. In summary, it was demonstrated that YM produces a reduction in the amount of activated cells under the stimulation of PHA. Therefore, it might be used in diseases with an inflammatory component.

ORGANISM(S): Homo sapiens

PROVIDER: GSE84407 | GEO | 2016/08/15

SECONDARY ACCESSION(S): PRJNA329094

REPOSITORIES: GEO

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Gene expression data from yerba mate treated and non-treated cultured PBMCs activated with phytohemagglutinin

Project description:Yerba mate (YM) has been shown to have anti-inflammatory properties in several studies. However, this effect has been found mainly in obesity-related in inflammation. The aim of this work was to study the effect of YM in cultured peripheral blood mononuclear cells to see whether it has anti-inflammatory properties. We stimulated peripheral blood mononuclear cells in vitro with phitohemaglutinin in the presence of yerba mate and determined their activation measuring the the expression of CD25 by flow cytometry. We observed that YM treatment produced a dose-dependent reduction in PBMC activation (CD25 positive cells) when they were stimulated with PHA. This effect was also observed in T cells (CD3 positive) subpopulation. Microarray analysis revealed the differential expression of 128 genes in YM-treated cells. According to a protein-protein interaction database, these genes were highly connected and they are involved in inflammatory response. In summary, it was demonstrated that YM produces a reduction in the amount of activated cells under the stimulation of PHA. Therefore, it might be used in diseases with an inflammatory component. PBMC samples from a healthy individual were cultured and stimulated with phytohemagglutinin. Gene expression of yerba mate treated and non-treated cells was analyzed in duplicates, having in total four microarrays.

2016-08-15 | E-GEOD-84407 | biostudies-arrayexpress

Atule mate

Project description:Atule mate overview

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Selective modulation of gene expression in activated normal human peripheral blood mononuclear cells by store-operated calcium entry blocker BTP2

Project description:Calcium is a critical signaling molecule in many cell types including immune cells. The calcium-release activated calcium channels (CRAC) responsible for store-operated calcium entry (SOCE) in immune cells are gated by STIM family members functioning as sensors of Ca2+ store content in the endoplasmic reticulum. We investigated the effect of SOCE blocker BTP2 on human peripheral blood mononuclear cells (PBMC) stimulated with the mitogen phytohemagglutinin (PHA).

2023-08-07 | GSE226570 | GEO

Female Drosophila melanogaster gene expression and mate choice: candidate genes underlying sexual isolation

Project description:Background The evolution of female choice mechanisms favouring males of their own kind is considered as crucial step during the early stages of speciation. However, although the genomics of mate choice may influence both the likelihood and speed of speciation, the identity and location of genes underlying assortative mating remain largely unknown. Methods and Findings We used mate choice experiments and gene expression analysis of female D. melanogaster to examine three key components influencing speciation. We show that the 1,498 genes in Zimbabwean female Drosophila melanogaster whose expression levels differ when mating with more (Zimbabwean) versus less (Cosmopolitan strain) preferred males include many with high expression in the central nervous system and ovaries, are disproportionately X-linked and form a number of clusters with low recombination distance. Significant involvement of the brain and ovaries is consistent with the action of a combination of pre- and postcopulatory female choice mechanisms, while sex linkage and clustering of genes lead to high potential evolutionary rate and sheltering against the homogenizing effects of gene exchange between populations. Conclusion Taken together our results imply favourable genomic conditions for the evolution of reproductive isolation through mate choice in Zimbabwean D. melanogaster and suggest that mate choice may, in general, act as an even more important engine of speciation than previously realized.

2011-02-05 | GSE27076 | GEO

Transcription profiling of human PBMC treated with anti-CD25 mAb

Project description:CD25 monoclonal antibody binding to the alpha-chain of the Interleukin-2 (IL-2) receptor, blocks high affinity IL-2 binding thereby preventing complete T cell activation and being of ample importance in transplantation medicine and potentially the treatment of autoimmune disease. However, CD25 antibodies do not only block T cell activation but also prevent activation induced cell death (AICD) attributing a dual function to IL-2. In this study, the modulation of the genomic expression profile of human peripheral blood mononuclear cells (PBMC) with therapeutic concentrations of humanized anti-CD25 mAb was investigated. PBMC were stimulated with CD3 antibody OKT-3 together with recombinant IL-2 in the absence or presence of anti-CD25 mAb. RNA was extracted and subjected to microarray analysis on U133A microarrays (Affymetrix). The expression profile revealed the up-regulation of 62 genes and down-regulation of 38 genes by anti-CD25 mAb, respectively. Experiment Overall Design: Peripheral blood mononuclear cells (PBMC) were stimulated for 8 or 16 hrs with 100 ng/ml OKT-3 together with 100 U/ml recombinant human interleukin-2 (rhIL-2) in the absence or presence of 30 Âµg/ml anti-CD25 antibody. RNA from cells under such treatment was isolated with Trizol and subjected to microarray analysis onto human U133A microarray following the Affymetrix protocol.

2009-05-11 | E-GEOD-15928 | biostudies-arrayexpress

Extra-long mate-pair sequenicng of genome of BN Rats

Project description:Extra-long mate-pair sequenicng of genome of BN Rats to improve scaffolding of reference rat genome

2012-05-15 | E-MTAB-1082 | biostudies-arrayexpress

Individual variation in preference behavior in sailfin fish refines the neurotranscriptomic pathway for mate preference

Project description:Social interactions can drive distinct gene expression profiles which may vary by social context. Here we use female sailfin molly fish (Poecilia latipinna) to identify genomic profiles associated with preference behavior in distinct social contexts: male-interactions (mate choice) versus female-interactions (shoaling partner preference). We measured behavior of 15 females interacting in a non-contact environment with either two males or two females for 30 minutes followed by whole brain transcriptomic profiling by RNA sequencing. We profiled females that exhibited high levels of social affiliation and great variation in preference behavior to identify an order of magnitude more differentially expressed genes associated with behavioral variation than by differences in social context. Using linear modeling (limma), we took advantage of the individual variation in preference behavior to identify unique gene sets that exhibited distinct correlational patterns of expression with preference behavior in each social context. By combining limma and weighted gene co-expression network analyses (WGCNA) approaches we identify a refined set of 401 genes robustly associated with mate preference that is independent of shoaling partner preference or general social affiliation. While our refined gene set confirmed neural plasticity pathways involved in moderating female preference behavior, we also identified a significant proportion of discovered that our preference-associated genes were enriched for ‘immune system’ gene ontology categories. We hypothesize that the association between mate preference and transcriptomic immune function is driven by the less well-known role of these genes in neural plasticity which is likely involved in higher-order learning and processing during mate choice decisions.

2023-07-01 | GSE233523 | GEO

Immune response eQTL study in human neonatal myeloid cells and T cells

Project description:Gene expression microarray data in resting myeloid cells and CD4+ T cells, as well as in response to lipopolysaccharide (LPS) or phytohemagglutinin (PHA) stimulation for 24 hours, respectively. Myeloid cells and CD4+ T cells were purified from resting and stimulated peripheral blood mononuclear cells from cord blood samples of 152 individuals at birth. Raw array data and quantile normalised gene expression data are available. Full summary statistics of eQTL analysis and interaction tests for response eQTLs are available. Information such as sample attributes and experimental variables are available in the \\"Microarray_sample_info.txt\\".

2020-04-20 | E-MTAB-8977 | biostudies-arrayexpress

Influence of anti-CD25 mAb on the transcriptome of activated PBMC

2009-05-02 | GSE15928 | GEO

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