Homo sapiens
Ontology highlight
ABSTRACT:
PROVIDER: PRJNA398237 | ENA |
REPOSITORIES: ENA
Similar Datasets
Project description:Urinary extracellular vesicles (uEVs) are a promising source for biomarker discovery, including miRNAs. The optimal isolation method of uEVs for miRNA profiling in patients with proteinuria is unknown. Six different methods were compared for the isolation of microvesicles and these were compared to raw urine (method A). 2 methods failed and further analysis was performed with the following methods: ExoRNeasy (method C), modified protocol for ExoRNeasy (method E) and ultracentrifugation (method F). Different miRNAs are enriched by method C and F. No differences were observed between method C and E.
2020-08-01 | GSE102627 | GEO
Project description:Purpose: Next-generation sequencing (NGS) has revolutionized systems-based analysis of cellular pathways. The goals of this study are to compare NGS-derived retinal transcriptome profiling (RNA-seq) to microarray and quantitative reverse transcription polymerase chain reaction (qRT–PCR) methods and to evaluate protocols for optimal high-throughput data analysis Methods: The serum microvesicles of five acute ischemic stroke (AIS) and healthy controls was purified using Ribo™ Exosome Isolation Reagent (C10110-2, RIBOBIO, Guangzhou, China) and analyzed by flow cytometry and nanoparticle tracking analysis (NTA).The miRNA expression profiles of serum microvesicles of five acute ischemic stroke (AIS) and healthy controls were detected by RNA-seq using llumina HiSeqTM 2500. Results: Using an optimized data analysis workflow, 732 miRNA species were detected in total. The levels of 51 individual miRNA species were significantly different between AIS patients and healthy controls. Conclusions: Our study represents the first detailed analysis of miRNA expression profiles of serum microvesicles in AIS and healthy controls, generated by RNA-seq technology. The optimized data analysis workflows reported here should provide a framework for comparative investigations of expression profiles. Our results show that NGS offers a comprehensive and more accurate quantitative and qualitative evaluation of miRNA content in serum microvesicles. We conclude that RNA-seq based non-coding RNA characterization would expedite genetic network analyses and permit the dissection of complex biologic functions.
2022-04-04 | GSE199942 | GEO
Project description:miRNA profiles of adipocyte-derived microvesicles (ADMs) on the Day 2-4 and Day 8-10 were compared. ADMs were prepared from the 48h-conditioned medium of 3T3-L1 adipocytes (Day 2-4 and Day 8-10) followed by RNA isolation.
2010-07-06 | E-GEOD-17977 | biostudies-arrayexpress
Project description:Microvesicles (MV) are small membrane-bound particles comprised of exosomes and various sized extracellular vesicles. These are released by a number of cell types. Microvesicles have a variety of cellular functions from communication to mediating growth and differentiation. Microvesicles contain proteins and nucleic acids. Previously, we showed that plasma microvesicles contain microRNAs (miRNAs). Based on our previous report, the majority of peripheral blood microvesicles are derived from platelets while mononuclear phagocytes, including macrophages, are the second most abundant population. Here, we characterized macrophage-derived microvesicles and whether they influenced the differentiation of naM-CM-/ve monocytes. We also identified the miRNA content of the macrophage-derived microvesicles. We found that RNA molecules contained in the macrophage-derived microvesicles were transported to target cells, including monocytes, endothelial cells, epithelial cells and fibroblasts. Furthermore, we found that miR-223 was transported to target cells and was functionally active. Based on our observations, we hypothesize that microvesicles bind to and activate target cells. Furthermore, we find that microvesicles induce the differentiation of macrophages. Thus, defining key components of this response may identify novel targets to regulate host defense and inflammation. We used GeneChip microarrays to examine changes in gene expression induced by MV in primary monocyte-derived macrophages (MDM) and in THP1 cells, and compare this to cells treated with GM-CSF and PMA, respectively. All experiments were done in triplicates. Primary monocytes were collected from buffy coats (BC). The freshly isolated monocytes from three donors (Mono1-3) were either treated with GM-CSF or subjected to RNA isolation. Following treatment, MVs were isolated from the GM-CSF-treated macrophage cultures. RNA was isolated from the remaining cells for profiling (GM1-3). The isolated MVs were then used to treat new BC monocytes for 24 h (BC-GMCSF-MV24). A fraction of the new BC monocytes was subjected to RNA extraction for profiling (BC1-3). For THP1 cells, they were treated with either DMSO or PMA to produce MVs. The MVs were collected and the remaining cells lyzed for RNA extraction and profiling (DMSO1-3 and PMA1-3). The collected MVs from the DMSO or PMA-treated THP1 cells were incubated with new THP1 for 24 h and designated DMSO-MV24 or PMA-MV24. We had a total of 24 samples.
2013-03-08 | E-GEOD-41889 | biostudies-arrayexpress
Project description:Urinary exosomal miRNA profiling was conducted in urinary exosomes obtained from 8 healthy controls (C), 8 patients with type II diabetes (T2D) and 8 patients with type II diabetic nephropathy (DN) using Agilent´s miRNA microarrays.
2016-11-03 | E-MTAB-4166 | biostudies-arrayexpress
Project description:The aim of this study was to compare miRNA expression in urinary exosomes from type 1 diabetic patients with and without incipient diabetic nephropathy. Overnight urine collections were obtained from normo- and microalbuminuric type 1 diabetic patients. Urines were pre-cleared by both centrifugation and filtration, urinary exosomes were isolated by two consecutive ultracentrifugation steps and total RNA extracted. Differential miRNA profiling was performed using a Human TaqMan miRNA Array A on an 7900HT Fast Real-Time PCR System. Results showed that expression of 22 urinary exosomal miRNAs differed in incipient diabetic nephropathy. Differential qPCR miRNA profiling was performed on urinary exosomes from 2 pairs of micro/normoalbuminuric type 1 diabetic patients comparable for age, sex, diabetes duration, and tightly matched for HbA1c (1° pair: 8.1 vs. 8.1, 2° pair: 8.7 vs. 8.7). MiRNAs were considered differentially expressed if they exhibited greater than twofold expression differences in both pairs.
2014-02-14 | E-GEOD-48318 | biostudies-arrayexpress
Project description:Determine differences between RNA isolation methods. Keywords: Comparison of RNA isolation techniques
2005-12-01 | GSE3684 | GEO
Project description:The aim of this study was to compare miRNA expression in urinary exosomes from type 1 diabetic patients with and without incipient diabetic nephropathy. Overnight urine collections were obtained from normo- and microalbuminuric type 1 diabetic patients. Urines were pre-cleared by both centrifugation and filtration, urinary exosomes were isolated by two consecutive ultracentrifugation steps and total RNA extracted. Differential miRNA profiling was performed using a Human TaqMan miRNA Array A on an 7900HT Fast Real-Time PCR System. Results showed that expression of 22 urinary exosomal miRNAs differed in incipient diabetic nephropathy.
2014-02-14 | GSE48318 | GEO