The female germline undergoes a unique line of differentiation processes that endows totipotency to the egg. During these processes, biologically significant events such as meiosis and oocyte growth are controlled in an orderly manner, with any disorder causing infertility and developmental arrest of the next generation. Reconstitution in vitro of the entire process of oogenesis from pluripotent stem cells is a key achievement in stem cell biology and regenerative medicine, but a robust and reproducible culture system has not been established. Here, we report successful reconstitution in vitro throughout the entire process of oogenesis from pluripotent stem cells, yielding in vitro-produced eggs that gave rise to healthy pups. Moreover, the pluripotent stem lines were re-derived from the in vitro-generated eggs, thereby reconstituting one generation on a dish. This culture system will provide a unique platform for elucidating the molecular mechanisms underlying totipotency and could open an avenue to producing vast numbers of eggs in vitro. Overall design: The transcriptomes of ES cells (ESCs), primordial germ cell-like cells at day 6 of differentiation (PGCLCs_d6), PGCLCs aggregated with gonadal somatic cells (PGCLCs_agg3), in vitro-produced primary oocytes in secondary follicles (vitro_2nd_fol_oocyte) and MII oocytes (vitro MII oocytes) are determined by RNA-seq analysis. For comparison, the transcriptomes of E12.5 PGCs (vivo_E12.5_PGCs), P8 primary oocytes (vivo_2nd_fol._oocyte) and MII oocytes (vivo_MII_oocyte) in vivo are also determined. Biologically triplicated (rep1-3) or duplicated (rep1-2) samples are sequnced simultaneously.
Mechanical stress accompanied with nuclear rotation is involved in the dormant state of mouse oocytes.
Specimen part, Cell line, Subject
View SamplesIn the present study, we investigated the effect of CBM 588 on lifespan and multiple-stress resistance using Caenorhabditis elegans as a model animal. When adult C. elegans were fed a standard diet of Escherichia coli OP50 or CBM 588, the lifespan of the animals fed CBM 588 was significantly longer than that of animals fed OP50. Moreover, the worms fed CBM 588 were more resistant to certain stressors, including infections with pathogenic bacteria, UV irradiation, and the metal stressor Cu2+. CBM 588 failed to extend the lifespan of the daf-2/IR, daf-16/FOXO and skn-1/Nrf2 mutants. Transcriptional profiling comparing CBM 588-fed and control-fed animals suggested that DAF-16-dependent class II genes were regulated by CBM 588. In conclusion, CBM 588 extends the lifespan of C. elegans probably through regulation of the insulin/IGF-1 signaling (IIS) pathway and the Nrf2 transcription factor, and CBM 588 improves resistance to several stressors in C. elegans. Overall design: Transcriptional profiling of eight-day-old worms that were fed OP50 or CBM 588 for five days, by deep sequencing, using Illumina HiSeq.
<i>Clostridium butyricum</i> MIYAIRI 588 Increases the Lifespan and Multiple-Stress Resistance of <i>Caenorhabditis elegans</i>.
Sex, Cell line, Treatment, Subject
View SamplesWe performed a microarray experiment to compare gene expression profiles of neural stem/progenitor cells (NS/PCs) isolated form E11.5, E14.5 and E18.5 mouse brain and differentiated cells such as neurons and glial cells (astrocytes and oligodendrocytes).
DNA Methylome Analysis Identifies Transcription Factor-Based Epigenomic Signatures of Multilineage Competence in Neural Stem/Progenitor Cells.
Specimen part
View SamplesGene expression study of human and Chimpanzee iPS cell.
New type of Sendai virus vector provides transgene-free iPS cells derived from chimpanzee blood.
Specimen part
View SamplesTo evaluate gene expression changes in mixed tissue samples used as process controls in male Sprague Dawley rats over time.
Assessment of repeated microarray experiments using mixed tissue RNA reference samples.
No sample metadata fields
View SamplesAnalysis of umbilical vein endothelial cells (HUVEC) treated with Egr-3 siRNA under the VEGF treatment for 0,1, and 4 h. Egr-3, a member of early growth response family, is immediately and dramatically induced by VEGF in HUVEC, which regulates expression of many genes related to endothelial activation.
Vascular endothelial growth factor activation of endothelial cells is mediated by early growth response-3.
No sample metadata fields
View SamplesRhizoctonia solani is an economically important soil-borne necrotrophic fungal pathogen, with a broad host range and for which little effective resistance exists in crop plants. Arabidopsis is resistant to the R. solani AG8 isolate but susceptible to R. solani AG2-1. Affymetrix microarray analysis was performed to determine genes that are affected in common and specifically by AG8 and AG2-1.
Genetic and genomic analysis of Rhizoctonia solani interactions with Arabidopsis; evidence of resistance mediated through NADPH oxidases.
Age, Specimen part, Treatment
View SamplesL-Ser deficiency leads to growth arrest, tissue malformation and embryonic lethality in mice. However, the molecular mechanism by which L-Ser deficiency impairs basic cellular function remains largely unexplored.
Microarray data on altered transcriptional program of Phgdh-deficient mouse embryonic fibroblasts caused by ʟ-serine depletion.
Specimen part
View SamplesAn branched-chain amino acids auxotroph eca39 mutant fission yeast exhibits an unusual adaptive growth phenotype on solid minimal media containing Ile, Leu and Val when other strains are growing nearby.
The SAGA histone acetyltransferase complex regulates leucine uptake through the Agp3 permease in fission yeast.
No sample metadata fields
View SamplesSASL1 is highly metastatic to lymph nodes. ACC2 is not metastatic. We compared gene expression on cultured cells to identify genes associated to metastatic spread patterns.
Premetastatic vasculogenesis in oral squamous cell carcinoma xenograft-draining lymph nodes.
Specimen part, Cell line
View Samples