to investigate the RA regulated genes in 2 dpp thy1+ gonocytes
Expression of stimulated by retinoic acid gene 8 (Stra8) and maturation of murine gonocytes and spermatogonia induced by retinoic acid in vitro.
No sample metadata fields
View SamplesPurpose:This work aimed to identify the genetic profiles of piriform projection neurons and characterize their spatial organization within the piriform cortex. Methods: We microdissected the three layers of pirifrom cortex by laser capture (LMD) and performed RNA deep sequencing in order to identify layer-specific molecular markers, we then validated these data by using RNA in situ hybridization and immunohistochemistry.We next performed anterograde neural tracing experiments to identify piriform target regions, and retrograde neural tracing experiments to analyze how piriform projection neurons are organized within piriform cortex.We then combined the analysis of patterns of gene expression with retrograde tracing experiments to identify molecular signatures of the different subclasses of piriform projecting neurons. Results:We show that layers and sub-layers of the piriform cortex can be discriminated by gene expression patterns in adult piriform cortex. We observe that neurons projecting to distinct target areas are localized in distinct layers and express specific genes. We demonstrate that these molecular signatures of piriform projection neurons are maintained in reeler mice, in which cortical lamination is lost and neural positioning is scrambled, suggesting that piriform output connectivity strictly depends on the molecular programm, rather than a proper lamination of the cortex. Conclusion:These results provide important insights into the principles underling the piriform connectivity. Overall design: 3 replicates per each layer (three layers) of piriform cotrex were used for the RNA deep sequancing
Molecular signatures of neural connectivity in the olfactory cortex.
No sample metadata fields
View SamplesWe used microarrays to detail the global programme of gene expression by circulating TCRVgamma9+ gamma delta T cells isolated from healthy individuals,tested either as resting cells or cells activated by phosphoantigen BrHPP and IL-2at an early(+6hrs) and a late (+7days) timepoint.
The gene expression profile of phosphoantigen-specific human γδ T lymphocytes is a blend of αβ T-cell and NK-cell signatures.
Specimen part, Disease, Treatment, Subject, Time
View SamplesDifferentially expressed genes along the paraxial mesoderm of 12 somite stage zebrafish embryos are identified
Spatiotemporal compartmentalization of key physiological processes during muscle precursor differentiation.
Specimen part
View SamplesWe have previously shown that Heparin (Hep) significantly inhibited Enterovirus 71 (EV71) infection and binding in both Vero and a human neural cell line, SK-N-SH, in vitro. Therefore, in this study we intended to gain insight into the cellular and molecular mechanisms of action of Hep against clinical EV71 infection in neural cells. Instead of stating a long list of gene functions and pathways, we tried to select for EV71-induced genes that were exclusively affected by antiviral activity of Hep through a multi-level comparison and characterization.
Global impact of heparin on gene expression profiles in neural cells infected by enterovirus 71.
Specimen part, Cell line
View SamplesTo try to identify the mechanism of STAT3s indirect action we have used a genomic approach to map the binding sites of STAT3 within the genome and also used RNA-seq technology to map the changes in RNA expression and transcript isoform abundance in response to IL-10. Overall design: Examination of transcriptome changes in peritoneal macrophages when treated with IL-10 for 4 hours. RNA was extracted and sequenced.
Genome-wide analysis of STAT3 binding in vivo predicts effectors of the anti-inflammatory response in macrophages.
Sex, Specimen part, Cell line, Subject
View SamplesRNA-seq was used to look at the transcriptome changes and the early events of T cell receptor stimulation in CD4+ T cells Overall design: CD4+ T cells were stimulated with immobilised anti-CD3/CD28 antibodies for 4 hours and RNA was extracted and subjected to RNA-seq analysis.
Discovery and characterization of new transcripts from RNA-seq data in mouse CD4(+) T cells.
Sex, Specimen part, Cell line, Treatment, Subject
View SamplesPlant growth promoting rhizobacteria (PGPR) induce positive effects in plants, such as increased growth or reduced stress susceptibility. The mechanisms behind PGPR/plant interaction are poorly understood, as most studies have described short- term responses on plants and only a few studies have analyzed plant molecular responses under PGPR colonization.
Effects of the plant growth-promoting bacterium Burkholderia phytofirmans PsJN throughout the life cycle of Arabidopsis thaliana.
Specimen part, Time
View SamplesEffective immune responses depend upon appropriate T cell differentiation in accord with the nature of an infectious agent, and the contingency of differentiation depends minimally on T cell antigen receptor, co-receptor, and cytokine signals. In this reverse genetic study we show that the Map Kinase, Erk2, is nonessential for T cell proliferation in the presence of optimum co-stimulation. Instead, it has opposite polar effects on T-bet and Gata3 expression and hence on Th1 and Th2 differentiation. Alternatively, in the presence of TGFbeta, the Erk pathway suppresses a large program of gene expression effectively limiting the differentiation of Foxp3+ T reg cells. In the latter case, the mechanisms involved include suppression of Gata3 and Foxp3, induction of Tbx21, phosphorylation of Smad2,3, and possibly suppression of Socs2, a positive inducer of Stat5 signaling. Consequently, loss of Erk2 severely impeded Th1 differentiation while enhancing the development of Foxp3+ induced T regulatory cells. Selected profiles of gene expression under multiple conditions of T cell activation illustrate the opposing consequences of Erk pathway signaling.
Polar opposites: Erk direction of CD4 T cell subsets.
Specimen part, Time
View SamplesThe androgen receptor (AR) is a mediator of both androgen-dependent and castration- resistant prostate cancers. Identification of cellular factors affecting AR transcriptional activity could in principle yield new targets that reduce AR activity and combat prostate cancer, yet a comprehensive analysis of the genes required for AR-dependent transcriptional activity has not been determined. Using an unbiased genetic approach that takes advantage of the evolutionary conservation of AR signaling, we have conducted a genome-wide RNAi screen in Drosophila cells for genes required for AR transcriptional activity and applied the results to human prostate cancer cells. We identified 45 AR-regulators, which include known pathway components and genes with functions not previously linked to AR regulation, such as HIPK2 (a protein kinase) and MED19 (a subunit of the Mediator complex). Depletion of HIPK2 and MED19 in human prostate cancer cells decreased AR target gene expression and, importantly, reduced the proliferation of androgen-dependent and castration-resistant prostate cancer cells. We also systematically analyzed additional Mediator subunits and uncovered a small subset of Mediator subunits that interpret AR signaling and affect AR-dependent transcription and prostate cancer cell proliferation. Importantly, targeting of HIPK2 by an FDA approved kinase inhibitor phenocopied the effect of depletion by RNAi and reduced the growth of AR-positive, but not AR negative, treatment-resistant prostate cancer cells. Thus, our screen has yielded new AR regulators including drugable targets that reduce the proliferation of castration-resistant prostate cancer cells.
A genome-wide RNA interference screen identifies new regulators of androgen receptor function in prostate cancer cells.
Cell line
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