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Characterization of exosomes from highly metastatic pancreatic adenocarcinoma line: ASML and a CD44v kd of ASML based on their miRNA content

ABSTRACT: Comparing the miRNA profile of exosomes from ASML vs ASML CD44v kd pancreatic adenocarcinoma line revealed that the expression level of 33 from the 40 most abundant miRNA differed significantly between ASMLwt and ASML-CD44vkd exosomes

ORGANISM(S): Human gammaherpesvirus 8 Rattus norvegicus Mus musculus Human alphaherpesvirus 1 JC polyomavirus Betapolyomavirus macacae Murid gammaherpesvirus 4 Homo sapiens Human immunodeficiency virus 1 Human betaherpesvirus 5 Betapolyomavirus hominis human gammaherpesvirus 4 Murid betaherpesvirus 1

PROVIDER: GSE34738 | GEO | 2011/12/28

SECONDARY ACCESSION(S): PRJNA156217

REPOSITORIES: GEO

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Characterization of exosomes from highly metastatic pancreatic adenocarcinoma line: ASML and a CD44v kd of ASML based on their miRNA content

Project description:Comparing the miRNA profile of exosomes from ASML vs ASML CD44v kd pancreatic adenocarcinoma line revealed that the expression level of 33 from the 40 most abundant miRNA differed significantly between ASMLwt and ASML-CD44vkd exosomes In this study tumor cell exosomes, deemed important for intercellular communication were analysed for their miRNA content. Exosomes from a highly metastatic pancreatic adenocarcinoma cell line, ASML and from a CD44v kd of ASML were used for RNA preparation using Trizol reagent, and the total RNA was sent to Genomics core facility,EMBL, Heidelberg for miRCURY LNA microRNA Array, v.11.0 - hsa, mmu & rno

2011-12-28 | E-GEOD-34738 | biostudies-arrayexpress

Comparative analysis of mRNA expression in untreated lymph node stroma cells and upon treatment with exosomes derived from ASMLwt, ASML cd44v knockdown cells.

Project description:Comparison of total RNA isolated from ASML and ASML CD44v knockdown exosomes; and RNA from untreated B12 lymph node stroma cells vs. cells treated for 24h with ASML wt or ASML CD44v kd exosomes The array consists of 12 samples. Samples 1-3 consist of total RNA from exosomes derived from ASML cells; samples 4-6 : total RNA from exosomes derived from ASML CD44v knockdown cell; samples 7,8 are total RNA from untreated B12 lymph node stroma cells; samples 9,10 are RNA from B12 cells treated for 24h with ASML wt exosomes and samples 11, 12 are RNA from B12 cells treated with ASML CD44v kd exosomes

2011-12-28 | E-GEOD-34737 | biostudies-arrayexpress

Comparative analysis of mRNA expression in untreated lymph node stroma cells and upon treatment with exosomes derived from ASMLwt, ASML cd44v knockdown cells.

2011-12-28 | GSE34737 | GEO

Exosomal tumor miRNA modulates premetastatic organ cells

Project description:This SuperSeries is composed of the following subset Series: GSE34737: Comparative analysis of mRNA expression in untreated lymph node stroma cells and upon treatment with exosomes derived from ASMLwt, ASML cd44v knockdown cells. GSE34738: Characterization of exosomes from highly metastatic pancreatic adenocarcinoma line: ASML and a CD44v kd of ASML based on their miRNA content Refer to individual Series

2011-12-28 | E-GEOD-34739 | biostudies-arrayexpress

Differential miRNA expression profiling of urinary exosomes from normo- and microalbuminuric type 1 diabetic patients

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

Differential miRNA expression profiling of urinary exosomes from normo- and microalbuminuric type 1 diabetic patients

2014-02-14 | GSE48318 | GEO

miRNA expression profile of cells and exosomes

Project description:We hypothesized that miRNAs in the bone maroow mesenchymal stem cells (BM-MSC)-derived exosomes contributed to the phenotype change of breast cancer cells through exosome transfer. We analyzed the miRNA expression signature in BM-MSC-derived exosomes. We compared the miRNA expression levels in exosomes between BM-MSCs and adult fibroblasts (as a control). In this study, miRNA expression including in bone-marrow mesenchymal cell (BM-MSC)-derived exosomes was examined, and compared with that of exosomes derived from adult fibroblast cells or the BM-MSC cells. In addition, miRNA expression of BM-MSC exosomes was also compared with that of breast cancer cells with or without cancer stem cell marker.

2014-07-03 | E-GEOD-58027 | biostudies-arrayexpress

Next-generation sequencing analyzes EPC-drived exosome miRNA content and alterations of mRNA expression in exosomes treated HUVEC

Project description:Purpose: To dissect the mechanisms of EPC-drived exosome in promoting endothelial cells reendothelialization, next-generation sequencing was used to determine exosome miRNA content and alterations in mRNA expression in HUVEC. Methods: The miRNA of EPC-drived exosomes sequencing was carried out on the HiSeq 2500 Platform (NovelBio Corp. Laboratory, Shanghai). The data analysis was carried out with the QIAseq miRNA quantification platform using unique molecular index (UMI) counts according to the manufacturer’s instructions. The mRNA analysis of three independent samples of PBS or EPC exosomes treated HUVEC was performed using the the HiSeq 2500 Platform (NovelBio Corp. Laboratory, Shanghai) following the manufacturer’s instructions. qRT–PCR validation was performed using TaqMan and SYBR Green assays. Results: The 20 most highly expressed microRNAs identified in EPC exosomes s are listed in Table 1. The genes predicted to be targeted by those microRNAs most highly expressed in EPC exosomes (top 20 microRNAs comprising ~75% of all reads, Table 1) are most significantly enriched in the functional category ‘blood vessel development’within the top 10 categories. Further, endothelial-specific miR-21-5P was the most highly expressed microRNA in EPC exosomes. Conclusions:EPC exosomes promote vascular endothelial repair by delivering functional miR-21-5p.

2022-01-03 | GSE124692 | GEO

Expression data from exosomes

Project description:Bone marrow (BM) niches provide an optimal substrate for multiple myeloma (MM) cell lodgement and growth. Nevertheless, little is known about the putative mechanisms by which the BM microenvironment can lead to initiation or progression of oncogenesis in this disease. We have demonstrated that BM mesenchymal stromal cell-derived exosomes transfer their miRNA and protein content to clonal plasma cells, thus acting as synaptic vesicles responsible for molding the microenvironment surrounding multiple myeloma (MM) cells, leading to MM growth, dissemination and, therefore, disease progression. We used microarray to detail the changes in microRNA expression in MM-BM mesenchymal stromal cell (MSC)-derived exosomes, compared to normal- and monoclonal gammopathy of undetermined significance- BM-MSC-derived exosomes. Exosomes have been isolated from cell culture supernatant of BM-MSCs (MM=7; MGUS=2; Normal=4), and subsequently evaluated at ultrastructural level by using electron microscopy and immunogolf labeling. RNA was extracted; and miRNA profiling has been assessed by using TaqMan human miRNA profiling. Mean miRNA expression value has been used for miRNA RT-qPCR data normalization, as described (Mestdagh et al., 2009).

2013-07-24 | E-GEOD-39571 | biostudies-arrayexpress

Exosomal-miRNA sequencing of optineurin gene knockdown BV2 cells and wild type BV2 cells

Project description:To compare the miRNA profiles in exosomes derived from optineurin gene knockdown (Optn-KD)BV2s cells and wild type (WT) BV2 cells, BV2 cells were divided into two groups, Optn-KD group or WT group. We treated the Optn-KD group with Optn siRNA for 24 hours. Then, MiRNA profiles for each group were examined by Illumina HiSeq4000. We found differentiated miRNA profiles in the two groups. Compared with WT BV2 cell-derived exosomes, 4 miRNAs (miR-125b-5p, miR-351-5p, miR-505-5p, miR-novel-chr8_37700) were up-regulated and 2 miRNAs (miR-574-5p, miR-99b-5p) were down-regulated in Optn-KD BV2 cell-derived exosomes. This study provides a framework for characterizing the exosomal-miRNAs in Optn-KD BV2 cells.

2021-03-19 | GSE169175 | GEO

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