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GSE21784
Caenorhabditis elegans
9 Downloadable Samples
Affymetrix C. elegans Genome Array (celegans)
Description
Aging has been shown to be under genetic control in C. elegans. We performed Affymetrix micorarray-based transcriptional profililng of wild type C. elegans strain Bristol N2 during aging to detect temporal changes in gene expression.
Publication Title
A decline in p38 MAPK signaling underlies immunosenescence in Caenorhabditis elegans.
Sample Metadata Fields
Specimen part
View Samples- Mus musculus
- 8 Downloadable Samples
- Affymetrix Mouse Gene 1.0 ST Array (mogene10st)
Description
Sox3 has been shown to be expressed within neural progenitors of the developing mouse central nervous system. However, identification of Sox3 targets within neural progenitors has remained elusive.
Publication Title
Dbx1 is a direct target of SOX3 in the spinal cord.
Sample Metadata Fields
Specimen part, Cell line
View Samples- Rattus norvegicus
- 4 Downloadable Samples
- Affymetrix Rat Genome 230 2.0 Array (rat2302)
Description
The oocytes found within the primordial follicles of mammalian ovaries remain quiescent for months to years until they receive the appropriate signals to undergo the primordial to primary follicle transition and initiate folliculogenesis. The molecular mechanisms and extracellular signaling factors that regulate this process remain to be fully elucidated. The current study investigates the mechanisms utilized by anti-Mllerian hormone (AMH; i.e. Mllerian inhibitory substance) to inhibit the primordial to primary follicle transition. Ovaries from 4-day-old rats were placed into organ culture and incubated in the absence or presence of AMH, either alone or in combination with known stimulators of follicle transition, including basic fibroblast growth factor (bFGF), kit ligand (KITL), or keratinocyte growth factor (KGF). Following 10 days of culture, the ovaries were sectioned, stained, and morphologically evaluated to determine the percentage of primordial versus developing follicles. As previously demonstrated, AMH treatment decreased primordial to primary follicle transition. Interestingly, AMH inhibited the stimulatory actions of KITL, bFGF, and KGF. Therefore, AMH can inhibit the basal and stimulated development of primordial follicles. To investigate the mechanism of AMH actions, the influence AMH has on the ovarian transcriptome was analyzed. AMH treatment when compared with controls was found to alter the expression of 707 genes. The overall effect of AMH exposure is to decrease the expression of stimulatory factors, increase the expression of inhibitory factors, and regulate cellular pathways (e.g. transforming growth factor beta signaling pathway) that result in the inhibition of primordial follicle development. Analysis of the regulatory factors and cellular pathways altered by AMH provides a better understanding of the molecular control of primordial follicle development.
Publication Title
Actions of anti-Mullerian hormone on the ovarian transcriptome to inhibit primordial to primary follicle transition.
Sample Metadata Fields
No sample metadata fields
View Samples- Mus musculus
- 47 Downloadable Samples
- Affymetrix Mouse Genome 430 2.0 Array (mouse4302)
Description
Transcriptome analysis of mRNA samples from a cohort of mice with histopathologically diagnosed Undifferentiated Myeloid Leukemia.
Publication Title
Analyzing tumor heterogeneity and driver genes in single myeloid leukemia cells with SBCapSeq.
Sample Metadata Fields
Sex, Age, Specimen part, Disease, Disease stage
View Samples- Mus musculus
- 5 Downloadable Samples
Ion Torrent Proton
Description
Mus musculus (house mouse) Myeloid Leukemia RNA-Seq
Publication Title
Analyzing tumor heterogeneity and driver genes in single myeloid leukemia cells with SBCapSeq.
Sample Metadata Fields
No sample metadata fields
View Samples- Mus musculus
- 8 Downloadable Samples
- Illumina HiSeq 2000
Description
We report the impact of side-stream cigarette smoking on baseline tracriptional status of enriched epithelium from the distal lung of both male and female control mice or mice harboring a mutation in the nicotinc alpha7 recptor that selectivley diminshes the calcium current (E260A). Overall design: Mice (male or female) of each nicotinic recptor alpha7 genotype (Control (c) or mutant (E260A)) were exposed to side-stream cigarette smoke 5 days per week for four months. The distal lung epithelium was enriched and poly-adenylated strand-specific RNA-Seq libraries using Illumina TruSeq stranded mRNA were preared for analysis.
Publication Title
Lung epithelial response to cigarette smoke and modulation by the nicotinic alpha 7 receptor.
Sample Metadata Fields
Sex, Specimen part, Cell line, Subject
View Samples- Saccharomyces cerevisiae
- 6 Downloadable Samples
- Affymetrix Yeast Genome 2.0 Array (yeast2)
Description
Reactive oxygen species, generated in vivo or exogenously encountered, constantly challenge living organisms. Oxidation of polyunsaturated fatty acids (PUFA), which are susceptible to oxidant attack, can lead to initiation of lipid peroxidation and in turn rapid production of toxic lipid hydroperoxides. Eukaryotic microorganisms such as Saccharomyces cerevisiae can survive harsh industrial conditions that contain high levels of the PUFA linoleic acid and its oxidised derivative, linoleic acid hydroperoxide (LoaOOH). The precise signalling and response mechanisms induced by yeast to overcome lipid hydroperoxide stress are ill understood.
Publication Title
Transcriptomic insights into the molecular response of Saccharomyces cerevisiae to linoleic acid hydroperoxide.
Sample Metadata Fields
No sample metadata fields
View Samples- Rattus norvegicus
- 27 Downloadable Samples
- Ion Torrent Proton
Description
It is possible to identify the key genes and pathways involved in specific physiological processes using transcriptome analyses. However, these powerful new deep sequencing-based methods have rarely been applied to studies of memory function. We used the bow-tie maze to train rats by exposing them to highly familiar objects or to novel objects. Total RNA sequencing was then used to compare the transcriptome of the perirhinal cortices of naïve control rats and rats exposed to novel and familiar stimuli. Differentially expressed genes were identified between group Novel and group Familiar rats and these included genes coding for transcription factors and extracellular matrix-related proteins. Moreover, differences in alternative splicing were also detected between the two groups. To conclude, this study shows that RNA sequencing can be used as a tool to identify differences in gene expression in behaving animals undergoing the same task but encountering different exposures. Overall design: RNA profiles of perirhinal cortex from rats exposed to novel objects (n=5) or familiar objects (n=5) in a recognition memory task were investigated using the Ion Proton System. Controls were naïve rats that had not undergone any behavioural testing (n=4).
Publication Title
Recognition memory-induced gene expression in the perirhinal cortex: A transcriptomic analysis.
Sample Metadata Fields
No sample metadata fields
View Samples- Homo sapiens
- 22 Downloadable Samples
- Affymetrix Human Genome U133 Plus 2.0 Array (hgu133plus2)
Description
Central nervous system primitive neuroectodermal tumors (CNS PNET) and medulloblastomas are both embryonal tumors that predominantly occur in children.
Publication Title
The role of the WNT/β-catenin pathway in central nervous system primitive neuroectodermal tumours (CNS PNETs).
Sample Metadata Fields
No sample metadata fields
View Samples- Homo sapiens
- 20 Downloadable Samples
- Affymetrix Human Genome U133A Array (hgu133a)
Description
We perform microarray analysis of HUVECs upon stimulation with virulent wildtype C. albicans strain SC5314 or its efg1/efg1 cph1/cph1 hyphal-deficient derivative strain CAN34 to compare the gene expression profiles elicited from HUVECs in response to these strains. In addition, these responses are compared to that of TNF-alpha induced responses to determine which responses are Candida-specific.
Publication Title
Transcriptome profile of the vascular endothelial cell response to Candida albicans.
Sample Metadata Fields
No sample metadata fields
View Samples