During organogenesis, PAX6 is required for establishment of various progenitor subtypes within the central nervous system, eye and pancreas. PAX6 expression is maintained in a variety of cell types within each organ, although its role in each lineage and how it acquires cell-specific activity remain elusive. Herein, we aimed to determine the roles and the hierarchical organization of the PAX6-dependent gene regulatory network during the differentiation of the retinal pigmented epithelium (RPE). Somatic mutagenesis of Pax6 in the differentiating RPE revealed that PAX6 functions in a feed-forward regulatory loop with MITF during onset of melanogenesis. PAX6 both controls the expression of an RPE isoform of Mitf and synergizes with MITF to activate expression of genes involved in pigment biogenesis. This study exemplifies how one kernel gene pivotal in organ formation accomplishes a lineage-specific role during terminal differentiation of a single lineage.
PAX6 regulates melanogenesis in the retinal pigmented epithelium through feed-forward regulatory interactions with MITF.
Specimen part
View SamplesWe report molecular characterization of human brown and white adipocytes. We showed that PAZ6 and SW872 cells exhibit classical molecular and phenotypic markers of brown and white adipocytes, respectively. However, SGBS cells presented a versatile phenotype of adipocyte Overall design: Sequencing of three human adipocytes cell lines (SGBS, SW872 and PAZ6) in undifferentiated and differentiated stages.
Comprehensive molecular characterization of human adipocytes reveals a transient brown phenotype.
No sample metadata fields
View SamplesARGLU1 was identified in a screen for new modulators of glucocorticoid signaling in the CNS. RNA-seq of neuronal cells ±siARGLU1 revealed significant changes in the expression and alternative splicing of distinct genes involved in neurogenesis. Treatment with dexamethasone, a GR activator, also induced changes in the pattern of alternatively spliced genes, highlighting an underappreciated global mechanism of glucocorticoid action in neuronal cells. Thus, in addition to its basal role, ARGLU1 links glucocorticoid-mediated transcription and alternative splicing in neural cells, providing new avenues from which to investigate the molecular underpinnings of cognitive stress disorders. Overall design: N2a cells were transfected with non-targeting control and ARGLU1 siRNAs for 48 hrs followed by Vehicle (EtOH) or 100 nM Dexamethasone treatment for 4 hrs. RNA was extracted and pooled by treatment group (n=3/group) and mRNA enriched Illumina TruSeq V2 RNA libraries were prepared. Samples were sequenced on Illumina HiSeq2500.
ARGLU1 is a transcriptional coactivator and splicing regulator important for stress hormone signaling and development.
Specimen part, Cell line, Subject
View SamplesChildren with acute measles were admitted to the University Teaching Hospital in Lusaka, Zambia. Peripheral blood was collected at hospital entry, discharge and 1-month follow-up. Control samples were also collected from uninfected children. All children were HIV negative.
Gene expression changes in peripheral blood mononuclear cells during measles virus infection.
No sample metadata fields
View SamplesHuman CD14+ monocytes were isolated and grown in GM-CSF and IL-4 for six days. The cells were then infected with measles virus, Chicago-1 strain, and RNA was isolated at 3, 6, 12, and 24 hours post-infection.
Gene expression patterns in dendritic cells infected with measles virus compared with other pathogens.
No sample metadata fields
View SamplesSpontaneous neural repair from endogenous neural stem cells (NSCs) occurs in response to central nervous system (CNS) injuries or diseases to only a limited extent from endogenous NSCs niches. Uncovering the mechanisms that control neural repair and can be further manipulated to promote towards oligodendrocyte progenitors cells (OPCs) and myelinating oligodendrocytes is a major objective.
Prickle1 as positive regulator of oligodendrocyte differentiation.
Sex, Age, Specimen part, Time
View SamplesThis SuperSeries is composed of the SubSeries listed below.
The Gene Expression Barcode: leveraging public data repositories to begin cataloging the human and murine transcriptomes.
Treatment
View SamplesWe used yeast RNA to estimate background binding for each probe on the human U133 plus 2.0 array.
The Gene Expression Barcode: leveraging public data repositories to begin cataloging the human and murine transcriptomes.
Treatment
View SamplesWe hybridized yeast RNA to the mouse 430 2.0 array to estimate the background binding for each probe.
The Gene Expression Barcode: leveraging public data repositories to begin cataloging the human and murine transcriptomes.
Treatment
View SamplesThis SuperSeries is composed of the SubSeries listed below.
MicroRNAs reprogram normal fibroblasts into cancer-associated fibroblasts in ovarian cancer.
Specimen part, Time
View Samples