The blockage of GABA-A ionotropic channels by means of gabazine is a widespread model of plasticity where the increased synaptic activity triggered by Gabazine leads to the up-regulation of a plethora of activity-dependent genes. Here, we sought to characterize the overall transcriptional response of GABA-A blocking of rat hippocampal organotypic cultures.
Early phase of plasticity-related gene regulation and SRF dependent transcription in the hippocampus.
Specimen part, Treatment
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DIDO as a Switchboard that Regulates Self-Renewal and Differentiation in Embryonic Stem Cells.
Specimen part
View SamplesTransition from symmetric to asymmetric cell division requires precise coordination of differential gene expression. Embryonic stem cells (ESC) strongly express Dido3, whose C-terminal truncation impedes ESC differentiation while retaining self-renewal. We show that Dido3 binds to its gene locus via H3K4me3 and RNA pol II and, at differentiation onset, induces expression of its splice variant Dido1, which then leads to Dido3 degradation and downregulation of stemness genes. We propose that Dido isoforms act as a switchboard to regulate genetic programs for ESC transition from pluripotency maintenance to promotion of differentiation.
DIDO as a Switchboard that Regulates Self-Renewal and Differentiation in Embryonic Stem Cells.
Specimen part
View SamplesDifferentially expressed genes in response to the phytohormone auxin in wild type and a conditional auxin signalling mutant
No associated publication
Age, Specimen part, Compound, Time
View SamplesThis SuperSeries is composed of the SubSeries listed below.
Identification of putative TAL effector targets of the citrus canker pathogens shows functional convergence underlying disease development and defense response.
Age, Specimen part, Time
View SamplesExperimental in vtiro approach to molecular pathways implicated in Apert Syndromes craniosynostosis through transcriptomics techniques. FGFR2 activation requires a tridimensional configuration between ligand, receptor and heparan sulfate(HS). Mutations in the extracellular region of this receptor affect the balance between proliferation and differentiation of osteoprogenitor cells, leading to craniosynostosis as Apert Syndrome (AS). We postulate that the degradation of HS in periosteal tissue in patients with AS can modify the gene expression profile and modulate cell behavior. Based on previous evidence we propose that the treatment with an enzyme that degrades HS, as Idursulfase, in periosteal tissue of patients with AS, could be affect the formation of the ternary complex (FGF / FGFR / HS), triggering changes in gene profiles expression in several molecular pathways, regarding their basal state with the mutated receptor.
No associated publication
Sex, Specimen part, Disease
View SamplesMicroarray analyses of sweet orange epicotyls transiently transfected with the pthA2, pthA4 or pthC1 gene, relative to epicotyls transfected with the uid gene (GUS)
Identification of putative TAL effector targets of the citrus canker pathogens shows functional convergence underlying disease development and defense response.
Age, Specimen part, Time
View SamplesResistance to chemotherapy is one of the most relevant aspects of treatment failure in cancer. Cell lines are used as models to study resistance. We analyze the transcriptional profile of two multidrug resistant (MDR) cell lines (Lucena 1 and FEPS) derived from the same drug-sensitive cell K562. Microarray data identified 130 differentially expressed genes (DEG) between K562 vs Lucena, 1,932 between K562 vs FEPS, and 1,211 between Lucena 1 versus FEPS. The NOTCH pathway was affected in FEPS with overexpression of NOTCH2 and HEY1. The highly overexpressed gene in MDR cell was ABCB1, and both presented the ABCB1 promoter unmethylated.
No associated publication
Cell line
View SamplesMicroarray analyses of sweet orange leaves infiltrated with Xc in the presence or absence of Ch, or Ch alone
Identification of putative TAL effector targets of the citrus canker pathogens shows functional convergence underlying disease development and defense response.
Specimen part, Time
View SamplesThis SuperSeries is composed of the SubSeries listed below.
No associated publication
Sex, Specimen part, Cell line, Subject
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