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Physically Isolated OptiPrep (TM) Fractions for exRNA Analysis

ABSTRACT: Physically Isolated OptiPrep (TM) Fractions for exRNA Analysis

PROVIDER: PRJNA510087 | ENA |

REPOSITORIES: ENA

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Physically Isolated OptiPrep (TM) Fractions for exRNA Analysis

Project description:An integrative analysis of human biofluid data in the exRNA Atlas revealed the existence of distinct extracellular RNA cargo types. In order to detect differences in density between cargo types, cushioned density gradient ultracentrifugation (C-DGUC) of serum and plasma was performed using OptiPrem (TM) density gradient.

2018-12-15 | GSE123864 | GEO

Lipoprotein Particle (LPP) exRNA Profiles Isolated from Plasma

Project description:An integrative analysis of human biofluid data in the exRNA Atlas revealed the existence of distinct extracellular RNA cargo types. To gain further insight on the biological nature of these cargo types, we correlated exRNA Atlas cargo profiles with a variety of other RNA-seq profiles. This study focuses on lipoprotein particle (LPP) exRNA profiles obtained via sequential density ultracentrifugation (SD-UC) and fast protein liquid chromatography (FPLC).

2018-12-20 | GSE124131 | GEO

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Project description:The Michael J. Fox Foundation (MJFF) collected AGO2 exRNA samples for distribution to interested individuals.

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Gene expression of the human trabecular meshwork (TM) of the eye

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Project description:An integrative analysis of human biofluid data in the exRNA Atlas revealed the existence of distinct extracellular RNA cargo types. To determine whether different RNA isolation kits biased detection of certain exRNA cargo types, an integrative analysis was performed using pooled plasma and serum samples, where 10 different RNA isolation kits were applied.

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Project description:An integrative analysis of human biofluid data in the exRNA Atlas revealed the existence of distinct extracellular RNA cargo types. To gain further insight on the biological nature of these cargo types, we correlated exRNA Atlas cargo profiles with a variety of other RNA-seq profiles. This study focuses on those samples obtained via ultracentrifugation and nanoscale deterministic lateral displacement (nanoDLD).

2018-12-13 | GSE123736 | GEO

Two distinct extracellular RNA signatures released by a single cell type identified by microarray and next-generation sequencing [miRNA]

Project description:Cells secrete extracellular RNA (exRNA) to their surrounding environment and exRNA has been found in many body fluids such as blood, breast milk and cerebrospinal fluid. However, there are conflicting results regarding the nature of exRNA. Here, we have separated two distinct exRNA profiles released by mast cells, here termed high-density (HD) and low-density (LD) exRNA. The exRNA in both fractions was characterized by microarray and next-generation sequencing. Both exRNA fractions contained mRNA and miRNA, and the mRNAs in the LD exRNA correlated closely with the cellular mRNA, whereas the HD mRNA did not. Furthermore, the HD exRNA was enriched in lincRNA, antisense RNA, vault RNA, snoRNA, and snRNA with little or no evidence of full-length 18S and 28S rRNA. The LD exRNA was enriched in mitochondrial rRNA, mitochondrial tRNA, tRNA, piRNA, Y RNA, and full-length 18S and 28S rRNA. The proteomes of the HD and LD exRNA-containing fractions were determined with LC-MS/MS and analysed with Gene Ontology term finder, which showed that both proteomes were associated with the term extracellular vesicles and electron microscopy suggests that at least a part of the exRNA is associated with exosome-like extracellular vesicles. Additionally, the proteins in the HD fractions tended to be associated with the nucleus and ribosomes, whereas the LD fraction proteome tended to be associated with the mitochondrion. We show that the two exRNA signatures released by a single cell type can be separated by floatation on a density gradient. These results show that cells can release multiple types of exRNA with substantial differences in RNA species content. This is important for any future studies determining the nature and function of exRNA released from different cells under different conditions.

2016-10-31 | GSE88754 | GEO

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