Human lung cancer (A549) cells were treated 50uM of the metal cation-containing chemotherapeutic drug motexafin gadolinium (MGd) for 4, 12, and 24 hrs and expression compared to control cells (treated with 5% mannitol for the same length of time)
Motexafin gadolinium disrupts zinc metabolism in human cancer cell lines.
No sample metadata fields
View SamplesFlower maturation consists of several events that contribute to reproductive success as flowers open, including petal expansion, stamen filament elongation, pollen release, nectary maturation, stigma growth, and gynoecium maturation to support pollen tube growth. The Arabidopsis transcription factors ARF6 (Auxin Response Factor 6) and ARF8 regulate all of these processes, in part by activating jasmonate biosynthesis. Jasmonates in turn activate genes encoding the transcription factors MYB21 and MYB24, which mediate a subset of the processes controlled by ARF6 and ARF8. This experiment was designed to characterize gene expression in flowers before and after they open, and to determine how arf6 arf8 and myb21 myb24 mutation combinations affect these gene expression patterns.
A regulatory network for coordinated flower maturation.
No sample metadata fields
View SamplesThe aim of this study was to examine the contribution of ARF6 and ARF8 to flower gene expression. Flowers from arf6 arf8 plants undergo a developmental arrest at approximately stage 12, just prior to flower opening. Flowers from wild-type, ARF6/arf6 arf8/arf8, and arf6 arf8 plants were separated into stage 1-10 flowers, stage 11+12 flowers, and stage 13-14 flowers to define the developmental stages at which ARF6 and ARF8 are required for gene expression.
Auxin response factors ARF6 and ARF8 promote jasmonic acid production and flower maturation.
No sample metadata fields
View SamplesWe performed microarray analysis to derive gene signatures down-stream of soluble CD40 ligand stimulation in human naive B cells. Nave B cells were purified from healthy donor PBMC using negative selection beads (Miltenyi) and cultured with sCD40L at 2.5ug/ml for 6hr before microarray analysis. In the same study, cells were also harvested at day 5 post-stimulation to confirm sCD40L-induced B cell activation and proliferation. FACS analysis confirmed soluble CD40L induced up-regulation of CD86 and CD69 at 24hr. B cell proliferation was measured at day 4 post-stimulation by EdU incorporation.
CD40L-Dependent Pathway Is Active at Various Stages of Rheumatoid Arthritis Disease Progression.
Specimen part, Treatment, Subject
View SamplesWe performed microarray analysis of sCD40L-stimulated iDC to derive a signature of CD40 activation. Human monocytes from normal healthy donors were differentiated to iDCs with GM-CSF and IL4. FACS analysis demonstrated the immature status of these cells, illustrated by low expression of CD80, CD40, and CD86. We confirmed that sCD40L induces the maturation of DCs, characterized by higher expression of CD80, HLA-DR, CD86, CD83 and CD40 and secretion of pro-inflammatory cytokines at 24hr post-stimulation. Cells were harvested at 1, 3 and 24hr post-stimulation for microarray analysis.
CD40L-Dependent Pathway Is Active at Various Stages of Rheumatoid Arthritis Disease Progression.
Specimen part, Treatment, Subject
View SamplesIn polygenic disorders we do not know exactly, how many genes are involved in the pathomechanism, but the analysis of fetal gene expression can get us closer to the solution. In our study we were searching for the genetic background of the polygenic neural tube defect, which is the second most common birth defect in the world (1 in 1000 live births). Our data revealed novel candidate genes, like SLAP, LST1 and BENE, which can play an important role in the pathogenesis of neural tube defects. We created a data warehouse from the results, suitable for further analysis. This study also demonstrates that a routinely collected amount of amniotic fluid (as small as 6 mL) is enough to successfully hybridize isolated RNA to expression arrays, making the ability to use the technique from normally collected amniotic fluid samples.
Use of routinely collected amniotic fluid for whole-genome expression analysis of polygenic disorders.
Specimen part, Disease, Disease stage
View SamplesThis SuperSeries is composed of the SubSeries listed below.
Genome wide mapping reveals PDE4B as an IL-2 induced STAT5 target gene in activated human PBMCs and lymphoid cancer cells.
Specimen part, Cell line
View SamplesIdentify IL-2 mediated genes in Kit225 cells.
Genome wide mapping reveals PDE4B as an IL-2 induced STAT5 target gene in activated human PBMCs and lymphoid cancer cells.
Specimen part, Cell line
View SamplesThis SuperSeries is composed of the SubSeries listed below.
The IL-4/STAT6 signaling axis establishes a conserved microRNA signature in human and mouse macrophages regulating cell survival via miR-342-3p.
Specimen part, Cell line
View SamplesRAW264.7 mouse macrophages were transfected with negative control and miR-342-3p mimics and subjected to microarray analysis 18 hours after the transfection.
The IL-4/STAT6 signaling axis establishes a conserved microRNA signature in human and mouse macrophages regulating cell survival via miR-342-3p.
Specimen part, Cell line
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