To get more insight in cause and consequences of proteinuria, we studied glomerular gene expression patterns before and after the onset of increased urinary albumin excretion in a proteinuric rat strain.
Increased dynamin expression precedes proteinuria in glomerular disease.
No sample metadata fields
View SamplesThe similarity in gene-expression profiles suggest that PGL2, like SDHD, is involved in the functionality of the SDH complex, and that tumor formation in these three subgroups involves the same pathways as in SDH linked paragangliomas. We were not able to clarify the identity of PGL2 on 11q13. The lack of differential gene-expression of chromosome 11 genes might indicate that chromosome 11 loss, as demonstrated in SDHD-linked paragangliomas, is an important feature in the formation of a paraganglioma regardless of the genetic background.
Similar gene expression profiles of sporadic, PGL2-, and SDHD-linked paragangliomas suggest a common pathway to tumorigenesis.
No sample metadata fields
View SamplesThis SuperSeries is composed of the SubSeries listed below.
Integrative analysis reveals relationships of genetic and epigenetic alterations in osteosarcoma.
Sex, Age, Specimen part, Cell line
View SamplesOsteosarcomas are the most common primary malignant tumours of bone, and almost all conventional osteosarcomas are high-grade tumours showing complex genomic aberrations. We have integrated genome-wide genetic and epigenetic profiles from the EuroBoNeT panel of 19 human osteosarcoma cell lines based on microarray technologies. The cell lines showed complex patterns of DNA copy number changes, where copy number gains were significantly associated with gene-rich regions of the genome and losses with gene-poor areas. Integration of the datasets showed that the mRNA levels were regulated by either alterations in DNA copy number or DNA methylation. Using a recurrence threshold of 6/19 (> 30 %) cell lines, 348 genes were identified as having alterations of two data types (gain or hypo-methylation/over-expression, loss or hyper-methylation/under-expression). These genes are involved in embryonic skeletal system development and morphogenesis, as well as remodelling of extracellular matrix. Several genes were hyper-methylated and under-expressed compared to normal osteoblasts, and expression could be reactivated by demethylation using 5-Aza-2-deoxycytidine treatment for all four genes tested. Globally, there was as expected a significant positive association between gain and over-expression, loss and under-expression as well as hyper-methylation and under-expression, but gain was also associated with hyper-methylation and under-expression, suggesting that hyper-methylation may oppose the effects of increased copy number for some genes. Integrative analysis of genome-wide genetic and epigenetic alterations identified mechanistic dependencies and relationships between DNA copy number and DNA methylation in terms of regulating mRNA expression levels in osteosarcomas, contributing to better understanding of osteosarcoma biology.
Integrative analysis reveals relationships of genetic and epigenetic alterations in osteosarcoma.
Sex, Specimen part, Cell line
View SamplesCircadian profiling of total RNA collected from wildtype and NPY KO murine liver. Liver RNA collected every 4 hours in a 12hr light:12hr dark cycle.
Neural clocks and Neuropeptide F/Y regulate circadian gene expression in a peripheral metabolic tissue.
No sample metadata fields
View SamplesRNA-seq analysis of zebrafish foxc1a mutant Overall design: For RNA-seq, mRNA was extracted from 38-40 hpf old embryos. We isolated wild type and foxc1a mutant samples by dissecting the entire first 6 anterior somitic segments (AS) through which the fin nerves migrate, and the adjacent posterior segments (PS; segments 7 through ~12) devoid of fin innervating nerves. Heads and yolks were excluded from all samples. Tissues were stored in RNAlater solution (Life Technologies) for up to 2 days at 4 degree before RNA was extracted using the RNAeasy kit (Qiagen) according to the manufacture’s protocol. RNA was tested for integrity using a Bioanalyzer (Agilent technologies). RNA samples showing RIN value of 8 or higher were used for generating cDNA libraries as described in the TruSeq® Stranded mRNA sample preparation guide. At the final stage, 15 cycles of PCR amplifications was performed. Barcoded libraries representing duplicates of AS and PS samples of wild type and mutants were validated using Bionalyzer (Agilent Technology) and finally sequenced in Illumina HiSeq 2500 yielding paired end reads of 100bp. The RNA-seq Unified Mapper (RUM) (Grant et al., 2011) was used to align the reads to the Zv9/danRer7 reference genome and to assign each read uniquely to a transcript. We investigated transcripts that showed the highest fold changes of expression between the different groups. For Gene Ontology annotations, genes tagged by the GO term “axon guidance” were obtained from the gene ontology database (http://www.geneontology.org/). Next we filtered this list for the “Danio rerio” taxon (resulting in 116 unique genes) and used them to annotate our RNA-seq results.
Zebrafish foxc1a drives appendage-specific neural circuit development.
No sample metadata fields
View SamplesThis is to determine in vivo kidney tissue gene expression regulated by acetate feeding in drinking water into mice for 6 weeks.
Chronically Elevated Levels of Short-Chain Fatty Acids Induce T Cell-Mediated Ureteritis and Hydronephrosis.
Specimen part
View SamplesThis SuperSeries is composed of the SubSeries listed below.
1q gain and CDT2 overexpression underlie an aggressive and highly proliferative form of Ewing sarcoma.
Sex, Age, Specimen part, Disease, Cell line
View SamplesThe 1q gain is related to poor survival, and to a profile of cell cycle deregulation in Ewing's Sarcoma (ES). Tumor samples with 1q gain overexpress the gene DTL.
1q gain and CDT2 overexpression underlie an aggressive and highly proliferative form of Ewing sarcoma.
Disease, Cell line
View SamplesThis SuperSeries is composed of the SubSeries listed below.
A circadian gene expression atlas in mammals: implications for biology and medicine.
Specimen part
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