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SRP032173
Zea mays
18 Downloadable Samples
Illumina HiSeq 2000
Description
Transformation of the Arabidopsis ATHB17 gene into maize results in the expression of a truncated protein (smaller by 113 amino acids) that functions as a dominant-negative regulator that can modify activity of endogenous maize HD-Zip II transcription factors. This RNASeq experiment indicates that the observed effects of ATHB17d113 on the maize ear inflorescence and ear transcriptome are very small. Expression of ATHB17delta113 protein in maize leads to changes in ear growth resulting in increased ear size at early reproductive stages and, potentially increased sink size. Overall design: Two ATHB17delta113 expressing events (Event 1 and Event 2) were compared to control plants (herein referred to as WT) in the context of Monsanto Elite Maize hybrid line NN6306. Three bioreps of both Ear inflorescence and Ear tissues were sampled for the WT and each of the two transgenic events.
Publication Title
Expression of a truncated ATHB17 protein in maize increases ear weight at silking.
Sample Metadata Fields
Specimen part, Subject
View Samples- Mus musculus
- 6 Downloadable Samples
Affymetrix Mouse Gene 1.0 ST Array (mogene10st)
Description
Somatic cell nuclear transfer (SCNT) and induced pluripotent stem cells (iPSCs) represent two major approaches for somatic cell reprogramming. However, little attention has been paid to the ability of these two strategies in rejuvenating cells from donors with aging associated syndrome. Here, we utilized telomerase deficient (Terc-/-) mice to probe this question. SCNT-derived embryonic stem cells (ntESCs) and iPSCs were successfully derived from second generation (G2) and third generation (G3) of Terc-/- mice, and ntESCs showed better differentiation potential and self-renewal ability. Telomeres lengthened extensively in cloned embryos while remained or slightly increased in the process of iPSCs induction. Furthermore, G3 ntESCs exhibited improvement of telomere capping function as evidenced by decreased signal free ends and chromosome end-to-end fusion events. In contrast, there was a further decline of telomere capping function in G3 iPSCs. In addition to telomere dysfunction, mitochondria function was severely impaired in G3 iPSCs as evidenced by oxygen consumption rate (OCR) decline, reactive oxygen species (ROS) accumulation and dramatically increased mitochondria genome mutations while these deficiencies were greatly mitigated in G3 ntESCs. Our data proved the principle that SCNT-mediated reprogramming appears more superior than transcription factors induced reprogramming in terms of the resetting of telomere quality and mitochondria function, and thus, providing valuable information for further improvement of transcription factors mediated reprogramming.
Publication Title
Enhanced telomere rejuvenation in pluripotent cells reprogrammed via nuclear transfer relative to induced pluripotent stem cells.
Sample Metadata Fields
Specimen part
View Samples- Mus musculus
- 25 Downloadable Samples
- Illumina HiSeq 4000
Description
mRNA profiles of 8 weeks old C57BL/6 mice 2 days after infections with 5e7 pfu of various strains of murine norovirus (MNV) or 1e8 pfu of T1L reovirus were evauated Overall design: mRNA profiles of 8 weeks old C57BL/6 mice 2 days after infections with 5e7 pfu of various strains of murine norovirus (MNV) or 1e8 pfu of T1L reovirus were evauated
Publication Title
Murine Norovirus Infection Induces T<sub>H</sub>1 Inflammatory Responses to Dietary Antigens.
Sample Metadata Fields
Age, Specimen part, Cell line, Subject
View Samples- Homo sapiens
- 4 Downloadable Samples
- Affymetrix Human Genome U133 Plus 2.0 Array (hgu133plus2)
Description
Differential gene expression profiling in KMT2D-depleted MIA PaCa-2 cells was performed using Human Genome U133 Plus 2.0 Array
Publication Title
Lysine methyltransferase 2D regulates pancreatic carcinogenesis through metabolic reprogramming.
Sample Metadata Fields
Treatment
View Samples- Homo sapiens
- 8 Downloadable Samples
- IlluminaHiSeq2000
Description
Tightly controlled gene expression orchestrated by the transcription factor p63 during epithelial differentiation is important for development of epithelial-related structures such as epidermis, limb and craniofacial regions. How p63 regulates spatial and temporal expression of its target genes during these developmental processes is however not yet clear. By epigenomics profiling in stem cells established from one of these epithelial structures, the epidermis, we provide a global map of p63-bound regulatory elements that are categorized as single enhancers and clustered enhancers during epidermal differentiation. Transcriptomics analysis shows dynamic gene expression patterns during epidermal differentiation that correlates with the activity of p63-bound enhancers rather than with p63 binding itself. Only a subset of p63-bound enhancers is active in epidermal stem cells, and inactive p63-bound enhancers appear to function in gene regulation during the development of other epithelial tissues. Our data suggest a paradigm that p63 bookmarks genomic loci during the commitment of the epithelial lineage and regulates gene expression in different epithelial tissues through tissue-specific active enhancers. The catalogue of differentially expressed epidermal genes including non-coding RNAs and epithelial enhancers reported here provides a rich resource for studies of epithelial development and related diseases. Overall design: Comparison of gene expression at different stages of keratinocyte differentiation
Publication Title
Genome-wide p63-regulated gene expression in differentiating epidermal keratinocytes.
Sample Metadata Fields
No sample metadata fields
View Samples- Homo sapiens
- 101 Downloadable Samples
- Illumina HumanHT-12 V4.0 expression beadchip
Description
Carboplatin and paclitaxel are the most widely prescribed chemotherapeutic agents for ovarian cancer. Not all patients respond to treatment, so there is a need for biomarkers that reliably predict resistance in ovarian tumors. Expression of such biomarkers may be dynamically controlled. Gene expression was assessed for a period of 14 days after treatment with carboplatin or combined carboplatin-paclitaxel in xenografts from two ovarian cancer models: chemosensitive serous adenocarcinoma derived OV1002 and slow growing, chemoresistant HOX424 of clear cell origin. Tumour volume reduction was observed in both cell lines post treatment, with a more prominent effect in OV1002, which subsided in late time points. In OV1002, hierarchical clustering classified differentially expressed genes into four time-related patterns, upregulated and downregulated groups for each early and late expressed genes. Upregulated genes were involved in DNA repair, cell cycle and apoptosis, while downregulated groups were involved in oxygen consuming metabolic processes and apoptosis control. Carboplatin-paclitaxel treatment triggered a more comprehensive response. HOX424 responded only to the combined treatment, while the observed reduction in tumour growth was limited. Several apoptosis and cell cycle genes were upregulated, while Wnt signaling was downregulated in the exclusively late expression pattern observed in this cell line. Late downregulated gene groups post carboplatin-taxane treatment were capable of predicting overall survival in two independent clinical datesets. Pathways overrepresented in these clusters were also predictive of outcome. This longitudinal gene expression study may help characterization of chemotherapy response, identification of resistance biomarkers and guiding timing of biopsies.
Publication Title
Chemotherapy-induced dynamic gene expression changes in vivo are prognostic in ovarian cancer.
Sample Metadata Fields
Disease, Disease stage, Time
View Samples- Homo sapiens
- 9 Downloadable Samples
- Affymetrix Human Genome U133 Plus 2.0 Array (hgu133plus2)
Description
Analysis of the gene expression pattern in the caput, corpus and cauda epididymides of three donors of 26-50 years of age with no medical pathologies that could affect reproductive function. The data generated in this study demonstrate a region specific gene expression pattern along the human epididymis that seems to coincide with the morphological distinctive features of the excurrent duct.
Publication Title
Region-specific gene expression profiling along the human epididymis.
Sample Metadata Fields
No sample metadata fields
View Samples- Homo sapiens
- 12 Downloadable Samples
- Affymetrix Human Genome U133A 2.0 Array (hgu133a2)
Description
The PI3K/mammalian target of rapamycin (mTOR) pathway is dysregulated in over 50% of human GBM but remains a challenging clinical target. Inhibitors against PI3K/mTOR mediators have limited clinical efficacy as single agents. Gene expression profiling after PI3K/mTOR inhibition treatment was analyzed by Affymetrix microarrays.
Publication Title
MSK1-Mediated β-Catenin Phosphorylation Confers Resistance to PI3K/mTOR Inhibitors in Glioblastoma.
Sample Metadata Fields
Specimen part, Cell line
View Samples- Homo sapiens
- 9 Downloadable Samples
- Affymetrix Human Genome U133 Plus 2.0 Array (hgu133plus2)
Description
Worldwide, almost 100 millions men rely on vasectomy for male contraceptive purposes. Due to changes in their personal life, an increasing number of these men request surgical vasectomy reversal. Unfortunately, a significant proportion of these men remain infertile, despite the reestablishment of patent ducts, possibly due to epididymal damages caused by vasectomy. In animal models, vasectomy affects different epididymal physiological and biochemical parameters. However, consequences of vasectomy on these biochemical parameters are poorly understood at the molecular level. Furthermore, results obtained with animal models cannot by extrapolated to human to understand the consequences of vasectomy on epididymal functions. Gene expression pattern of epididimydis is highly regulated. We previously showed that the human epididymal expression pattern of two genes is altered under vasectomy. To complete the list of epididymal genes affected by vasectomy, we analysed the epididymal gene expression profile of three vasectomised donors, using the affymetrix human GeneChip U133 Plus 2. These results were compared with gene expression pattern of three normal donors. The data generated allowed the identification of many human epididymal genes for which the expression is modified under vasectomy. Qt-PCR and western-blot analysis of six selected genes known to be expressed in specific epididymal segments were performed. The Qt-PCR results confirmed the selected transcripts expression pattern deduced from microarrays data, while the western-blot analysis revealed some differences in protein distribution along the epididymis when compared to the transcripts expression pattern. These results contribute to the understanding of the causes of the persistent of infertility even though spermogram values suggest surgical success of vasovasostomy.
Publication Title
Effects of vasectomy on gene expression profiling along the human epididymis.
Sample Metadata Fields
No sample metadata fields
View Samples- Mus musculus
- 9 Downloadable Samples
- Affymetrix Mouse Gene 1.0 ST Array (mogene10st)
Description
Differentiated somatic cells can be reprogrammed into induced pluripotent stem (iPS) cells by forced expression of four transcription factorsOct4, Sox2, Klf4, and c-Myc. However, it remains undetermined whether the reprogrammed iPS cells are fully pluripotent, resembling normal embryonic stem (ES) cells, given that no iPS cell lines have been shown to possess the capability to autonomously generate full-term mice after injection into tetraploid blastocysts. Here, we provide evidence demonstrating that iPS cells induced by the four transcription factors can be fully pluripotent and that full-term mice can be produced from complemented tetraploid blastocysts. This work serves as a proof of principle that iPS cells can generate full term embryos by tetraploid complementation.
Publication Title
iPS cells can support full-term development of tetraploid blastocyst-complemented embryos.
Sample Metadata Fields
Specimen part, Cell line
View Samples