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SRP108050
Danio rerio
6 Downloadable Samples
Illumina HiSeq 2500
Description
Puberty is a special transition period in sexual maturation, and it has been extensively studied in vertebrates in the past decades. In mammals, the initiation of puberty involves activation of numerous genes; however, there have been few comprehensive reports in small model teleosts such as the zebrafish. In the zebrafish, the onset of puberty in females is marked by the appearance of the first wave of pre-vitellogenic (PV) follicles in the ovary during sexual maturation. Using transcriptomics and real-time qPCR, this study was undertaken to investigate temporal gene expression differences between the primary growth (PG) follicles and pre-vitellogenic (PV) follicles, with particular emphasis on oocyte and follicular cell specific genes as well as several closely associated signaling pathways. Our results showed that totally 1082 genes were significantly upregulated and 530 evidently downregulated during the PG-PV transition, and among them were some well recognized biomarkers such as cyp19a1a, fshr, inha and inhbaa and some novel genes like notch3, amh, gadd45ga and lpl. Further gene ontology analysis showed that egg coat formation and steroid hormone mediated signaling pathway might be critical for follicle activation from PG to PV stage. In addition, KEGG identified several signaling pathways that might play pivotal roles in early folliculogenesis, including phosphatidylinositol signaling system, glycolsaminoglycan biosynthesis, RNA transport, and p53 signaling pathways. Overall, this study reported a comprehensive analysis for biomarker genes and potential pathways involved in PG-PV transition or follicle activation, which also marks female puberty onset in the zebrafish when occurring for the first time in sexual maturation. Overall design: Examination of gene expression patterns in 2 different stage follicles (PG and PV follicles)
Publication Title
Transcriptomic Analysis for Differentially Expressed Genes in Ovarian Follicle Activation in the Zebrafish.
Sample Metadata Fields
Specimen part, Cell line, Subject
View Samples- Mus musculus
- 4 Downloadable Samples
Affymetrix Mouse Gene 2.0 ST Array (mogene20st)
Description
Identification of intrathymic Eomes+ natural Th1 cells creates a novel idea that there is more than one way for the generation of innate CD4 T cells. To more deeply characterize this type of innate T cells, we compared the gene expression profile between nTh1 cells generated in CIITAtg mice and classic Th1 cells differentiated from naive CD4 T cells in Th1-polarizing condition.
Publication Title
Thymic low affinity/avidity interaction selects natural Th1 cells.
Sample Metadata Fields
Age, Specimen part
View Samples- Homo sapiens
- 15 Downloadable Samples
- Affymetrix Human Genome U133A 2.0 Array (hgu133a2)
Description
Human dendritic cells (DC) are suppressed by tumor-derived alpha fetoprotein (AFP), but less so by cord blood-derived normal AFP.
Publication Title
Tumor-derived α-fetoprotein impairs the differentiation and T cell stimulatory activity of human dendritic cells.
Sample Metadata Fields
Specimen part, Subject
View Samples- Homo sapiens
- 20 Downloadable Samples
- Affymetrix Human Genome U219 Array (hgu219)
Description
Primary mielofibrosis (PMF) is a rare chronic myeloproliferative disorder characterized by the accumulation of abnormal megakaryocytes (Mks) in the bone marrow (BM), variable degrees of BM fibrosis, osteosclerosis and angiogenesis, immature myeloid and erythroid cells, and tear-drop erythrocytes in the peripheral blood (PB), and extramedullary hematopoiesis. The identification of the JAK2V617F mutation represented a seminal discovery in the field of Philadelphia-chromosomenegative chronic myeloproliferative neoplasms (MPNs), providing clues to the pathogenesis, prompting a revision of the diagnostic criteria, and culminating in the development of clinical trials with JAK2 (and JAK1) inhibitors. The JAK2V617F mutation occurs in almost all patients with polycythemia vera (PV) and in 50%-70% of those with essential thrombocythemia (ET) and primary myelofibrosis (PMF). Soon after the identification of the JAK2V617F mutation, mutations in JAK2 exon 12 were described in rare patients with JAK2V617F-negative PV and mutations in MPL were reported in 5%-10% of ET or PMF subjects. The complexity of the molecular pathogenesis of MPNs is reinforced by discovery of additional mutations in TET2, ASXL1, CBL, IDH1/IDH2, EZH2 and IKZF1. These mutations are detected in a minority of patients at different phases of the disorder, including leukemic transformation, and are variably associated each other and with JAK2 or MPL mutations.
Publication Title
Mutations and prognosis in primary myelofibrosis.
Sample Metadata Fields
Specimen part, Disease
View Samples- Mus musculus
- 6 Downloadable Samples
- Affymetrix Mouse Gene 1.0 ST Array (mogene10st)
Description
Terahertz (THz) technology has emerged for biomedical applications such as scanning, molecular spectroscopy, and medical imaging. However, the biological effect of THz radiation is not fully understood. Non-thermal effects of THz radiation were investigated by applying a femtosecond-terahertz (fs-THz) pulse to mouse skin. Analysis of the genome-wide expression profile in fs-THz-irradiated skin indicated that wound responses were predominantly through NFB1- and Smad3/4-mediated transcriptional activation. Repeated fs-THz radiation delayed the closure of mouse skin punch wounds due to up-regulation of transforming growth factor-beta (TGF-). These findings suggest that fs-THz radiation provokes a wound-like signal in skin with increased expression of TGF- and activation of its downstream target genes, which perturbs the wound healing process in vivo.
Publication Title
High-power femtosecond-terahertz pulse induces a wound response in mouse skin.
Sample Metadata Fields
Sex, Specimen part
View Samples- Homo sapiens
- 3 Downloadable Samples
- NextSeq 500
Description
To determine the genes potentially responsible for the lactate-mediated gene expression regulation in hepatocellular carcinoma, we performed RNA-seq analyses on parental HepG2, HepG2/metR and oxamate-treated HepG2/metR cells. To gain mechanistic insights into the lactate-induced pro-migratory phenotypes, we established a cell model that acquired a resistance to metformin while producing lactate at a high level by selecting HepG2 cells that survived a chronic exposure to metformin for more than 5 months (HepG2/metR). In HepG2/metR cells, glycolysis rates were increased by more than 3 folds compared with parental cells, and consequently, lactate production was also highly enhanced. To clarify the gene expression regulation between the lactate level in the HepG2/metR model, we treated the cells with oxamate, an inhibitor of lactate dehydrogenase, and found that it significantly. Using a 2-fold change cut-off value in transcriptome, we selected 1,757 genes significantly up-regulated in HepG2/metR vs parental HepG2 cells. 690 genes were down-regulated by oxamate treatment in HepG2/metR cells. Eventually, we selected 136 genes that are common in the two gene sets, which may directly respond to lactate signaling Overall design: mRNA profiles of HepG2 cells, HepG2/metR (hyper-glycolytic cell model), oxamate treated HepG2/metR (decreased lactate concentration cell) were generated by deep sequencing using Illumina Nextseq 500
Publication Title
Lactate Activates the E2F Pathway to Promote Cell Motility by Up-Regulating Microtubule Modulating Genes.
Sample Metadata Fields
Specimen part, Cell line, Treatment, Subject
View Samples- Drosophila melanogaster
- 8 Downloadable Samples
- Illumina HiSeq 2000
Description
We used RNA-seq to investigate gene expression variation in Malpighian tubules, which have a function analogous to that of human kidneys. In order to characterize population differentiation, we sequenced the Malpighian tubule transcriptomes of flies derived from two populations, one from sub-Saharan Africa (Zimbabwe) and one from Europe (the Netherlands). Males and females were examined separately. Overall, we found a high amount of differential expression between sexes (2,308 genes) and populations (2,474 genes). Although most of the differentially expressed genes were consistent between sexes and populations, there were 615 genes showed sex-biased expression in only one population and 557 genes showed population-biased expression in only one sex. Overall design: mRNA expression profiles of Drosophila melanogaster Malpighian tubules from adult males and females from a European and an African population (2 biological replicates per sex and population)
Publication Title
Population- and sex-biased gene expression in the excretion organs of Drosophila melanogaster.
Sample Metadata Fields
Sex, Subject
View Samples- Mus musculus
- 91 Downloadable Samples
- Illumina MouseWG-6 v2.0 expression beadchip
Description
Time-course analysis of adipocyte gene expression profiles response to high fat diet. The hypothesis tested in the present study was that in diet-induced obesity, early activation of TLR-mediated inflammatory signaling cascades by CD antigen genes, leads to increased expression of pro-inflammatory cytokines and chemokines, resulting in chronic low-grade inflammation. Early changes in collagen genes may trigger the accumulation of ECM components, promoting fibrosis in the later stages of diet-induced obesity. New therapeutic approaches targeting visceral adipose tissue genes altered early by HFD feeding may help ameliorate the deleterious effects of a diet-induced obesity.
Publication Title
Time-course microarrays reveal early activation of the immune transcriptome and adipokine dysregulation leads to fibrosis in visceral adipose depots during diet-induced obesity.
Sample Metadata Fields
Age, Specimen part, Treatment, Time
View Samples- Homo sapiens
- 4 Downloadable Samples
- Illumina HumanHT-12 V4.0 expression beadchip
Description
This SuperSeries is composed of the SubSeries listed below.
Publication Title
Characterization of gene expression and activated signaling pathways in solid-pseudopapillary neoplasm of pancreas.
Sample Metadata Fields
Sex, Age, Specimen part
View Samples- Homo sapiens
- 4 Downloadable Samples
- Illumina HumanHT-12 V4.0 expression beadchip
Description
Solid-pseudopapillary neoplasm of pancreas(SPN), ductal adenocarcinoma(PCA), neuroendocrine tumor(NET) and non-neoplastic pancreas.
Publication Title
Characterization of gene expression and activated signaling pathways in solid-pseudopapillary neoplasm of pancreas.
Sample Metadata Fields
Sex, Age, Specimen part
View Samples