Filters
Technology
Platform
Homo sapiens
4 Downloadable Samples
Affymetrix Human Genome U133 Plus 2.0 Array (hgu133plus2)
Description
Exosomes are molecular entities derived from membrane vesicles of endocytic origin secreted by most cell types. These vesicles are implicated in cell-to-cell communication, deliver proteins and mRNA molecules between cells. Recent studies have shown that exosomes are found in body fluids such as saliva, blood, urine, amniotic fluid, malignant ascites, bronchoalveolar lavage fluid, synovial fluids and breast milk. Exosomes secreted through human saliva contain mRNA may potentially be useful for diagnostic purposes. Although the exact protective mechanism of saliva RNA is a topic of debate, the consensus is that the enrichment of mRNAs in these nano-vesicles in one of the features of the biomarker discoveries. Our aim was to determine if exosomes are present in human saliva and to nano-characterize their transcriptomic content. Exosomes were purified by differential ultracentrifugation, identified by immunoelectron microscopy, flow cytometry and western blot using a CD-63 antibody. Atomic force microscopy studies revealed ultra structural analysis of both size and density of exosomes. Microarray analysis revealed the presence of 590 mRNA core transcripts are relatively stable inside the exosomes, which can be of saliva mRNA biomarkers. Exosomal mRNA stability was determined by detergent lyses with treatment of RNase. Under in vitro conditions fluorescent dye labeled saliva exosomes were able to communicate between human oral keratinocytes studied by using fluorescence microscopy. The RNA from saliva exosomes can transfer their genetic information to human oral keratinocytes and alters gene expression in the new location. Together, these results suggest that saliva is involved in mRNA trafficking via exosomes, and provides a mechanism for cargoing passenger mRNAs. Our findings are consistent with proposal that exosomes can shuttle RNAs between cells and mRNA is protected inside these vesicles may be a possible resource for biomarker discovery.
Publication Title
No associated publication
Sample Metadata Fields
No sample metadata fields
View Samples- Homo sapiens
- 9 Downloadable Samples
- Affymetrix Human Genome U133 Plus 2.0 Array (hgu133plus2)
Description
To investigate how histone demethylases KDM4B and KDM6B may be involved in osteogenic commitment of mesenchymal stem cells (MSCs), we performed gene expression profiling and comparison on control, KDM4B- and KDM6B-knockdown MSCs at different stages of osteogenic differentiation.
Publication Title
Histone demethylases KDM4B and KDM6B promotes osteogenic differentiation of human MSCs.
Sample Metadata Fields
Specimen part, Treatment, Time
View Samples- Homo sapiens
- 1 Downloadable Sample
- Affymetrix Human Genome U133 Plus 2.0 Array (hgu133plus2)
Description
Breast cancer invasive growth, metastasis and therapeutic resistance affects the clinical ourcome. We explored the epigenetic mechanisms that control these process in breast cancer cell line, MDA-MB-231 by knocking down a lysine specific demethylase KDM3A
Publication Title
No associated publication
Sample Metadata Fields
Specimen part, Cell line
View Samples- Mus musculus
- 872 Downloadable Samples
Affymetrix HT Mouse Genome 430A Array (htmg430a), Illumina MouseRef-8 v2.0 expression beadchip
Description
This SuperSeries is composed of the SubSeries listed below.
Publication Title
Genetic architecture of insulin resistance in the mouse.
Sample Metadata Fields
Sex, Age, Specimen part
View Samples- Homo sapiens
- 770 Downloadable Samples
- Affymetrix Human Genome U219 Array (hgu219)
Description
We analyzed samples from 770 male human subjects who are part of the METSIM study. Ethics Committee of the Northern Savo Hospital District approved the study. All participants gave written informed consent. The population-based cross-sectional METSIM study included 10 197 men, aged from 45 to 73 years, who were randomly selected from the population register of the Kuopio town in eastern Finland (population 95000). Every participant had a 1-day outpatient visit to the Clinical Research Unit at the University of Kuopio, including an interview on the history of previous diseases and current drug treatment and an evaluation of glucose tolerance and cardiovascular risk factors. After 12 h of fasting, a 2 h oral 75 g glucose tolerance test was performed and the blood samples were drawn at 0, 30 and 120 min. Plasma glucose was measured by enzymatic hexokinase photometric assay (Konelab Systems reagents; Thermo Fischer Scientific, Vantaa, Finland). Insulin was determined by immunoassay (ADVIA Centaur Insulin IRI no. 02230141; Siemens Medical Solutions Diagnostics, Tarrytown, NY, USA). Height and weight were measured to the nearest 0.5 cm and 0.1 kg, respectively. Waist circumference (at the midpoint between the lateral iliac crest and lowest rib) and hip circumference (at the level of the trochanter major) were measured to the nearest 0.5 cm. Body composition was determined by bioelectrical impedance (RJL Systems) in subjects in the supine position.
Publication Title
Genetic Regulation of Adipose Gene Expression and Cardio-Metabolic Traits.
Sample Metadata Fields
Sex, Age, Specimen part
View Samples
GSE38705- Mus musculus
- 510 Downloadable Samples
- Affymetrix HT Mouse Genome 430A Array (htmg430a)
Description
Identify genes involved in regulation of inflammatory responses and gene-environemnt interactions, in macrophages from a set of mouse inbred strains termed the HMDP. The HMDP is a genetically diverse mapping panel comprised of classical inbred and recombinant inbred wild type mice. The RMA values of genes were used for genome wide association as described in Bennett et al Genome Research 2010.
Publication Title
Unraveling inflammatory responses using systems genetics and gene-environment interactions in macrophages.
Sample Metadata Fields
Sex, Age, Specimen part
View Samples- Mus musculus
- 439 Downloadable Samples
- Affymetrix HT Mouse Genome 430A Array (htmg430a), Illumina MouseRef-8 v2.0 expression beadchip
Description
Identify genes in the gonadal adipose tissue whose expression is under genetic regulation in the Hybrid Mouse Diversity Panel (HMDP). The HMDP comprises classical inbred and recombinant inbred wild type mice. The RMA values of genes were used for genome wide association as described in Parks et al Cell Metabolism 2015. These data are used to identify candidate genes at loci associated with obesity and dietary responsiveness.
Publication Title
Genetic architecture of insulin resistance in the mouse.
Sample Metadata Fields
Sex, Age, Specimen part
View Samples- Mus musculus
- 424 Downloadable Samples
- Affymetrix Mouse Genome 430 2.0 Array (mouse4302)
Description
In several models of obesity-induced diabetes, increased lipid accumulation in the liver has been associated with decreased diabetes susceptibility. For instance, deficiency in leptin receptor (db/db) leads to hyperphagia and obesity in both C57BL/6 and C57BLKS mice but, only on the C57BLKS background do the mice develop beta-cell loss leading to severe diabetes while C57BL/6 mice are relatively resistant. Liver triglyceride levels in the resistant C57BL/6 mice are 3 to 4 fold higher than in C57BLKS.
Publication Title
Systems genetics of susceptibility to obesity-induced diabetes in mice.
Sample Metadata Fields
Sex, Age
View Samples- Mus musculus
- 433 Downloadable Samples
- Affymetrix HT Mouse Genome 430A Array (htmg430a), Illumina MouseRef-8 v2.0 expression beadchip
Description
Identify genes in the liver whose expression is under genetic regulation in the Hybrid Mouse Diversity Panel (HMDP). The HMDP comprises classical inbred and recombinant inbred wild type mice. The RMA values of genes were used for genome wide association as described in Parks et al Cell Metabolism 2015. These data are used to identify candidate genes at loci associated with obesity and dietary responsiveness.
Publication Title
Genetic architecture of insulin resistance in the mouse.
Sample Metadata Fields
Sex, Age, Specimen part
View Samples- Homo sapiens
- 125 Downloadable Samples
- Illumina HumanHT-12 V4.0 expression beadchip
Description
This SuperSeries is composed of the SubSeries listed below.
Publication Title
Epipolymorphisms associated with the clinical outcome of autoimmune arthritis affect CD4+ T cell activation pathways.
Sample Metadata Fields
Sex
View Samples