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Small RNA sequencing of small extracellular vesicles derived from senescent vs. nonsenescent human dermal fibroblasts (HDFs)

ABSTRACT: We report small RNA sequencing technology for high-throughput profiling of microRNA content within small extracellular vesicles isolated from nonsenescent and senescent human dermal fibroblasts.

ORGANISM(S): Homo sapiens

PROVIDER: GSE184084 | GEO | 2021/09/16

REPOSITORIES: GEO

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Small RNA sequencing of small extracellular vesicles derived from senescent vs. nonsenescent human dermal fibroblasts (HDFs)

Project description:Small RNA sequencing of small extracellular vesicles derived from senescent vs. nonsenescent human dermal fibroblasts (HDFs)

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Small RNA sequencing of small extracellular vesicles secreted by nonsenescent vs. senescent human umbilical cord mesenchymal stem cells

Project description:We report small RNA sequencing technology for high-throughput profiling of microRNA content within small extracellular vesicles isolated from nonsenescent and senescent human umbilical cord mesenchymal stem cells (hUCMSCs)

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Small extracellular vesicles secreted from senescent cells promote cancer cell proliferation through EphA2.

Project description:Cellular senescence prevents the proliferation of cells at risk for neoplastic transformation. However, the altered secretome of senescent cells can promote the growth of the surrounding cancer cells. Although extracellular vesicles (EVs) have emerged as new players in intercellular communication, their role in the function of senescent cell secretome has been largely unexplored. Here, we show that exosome-like small EVs (sEVs) are important mediators of the pro-tumorigenic function of senescent cells. sEV-associated EphA2 secreted from senescent cells binds to ephrin-A1 that is highly expressed in several types of cancer cells and promotes cell proliferation through EphA2/ephrin-A1 reverse signalling. sEV sorting of EphA2 is increased in senescent cells due to its enhanced phosphorylation resulting from oxidative inactivation of PTP1B phosphatase. Our results demonstrate a novel mechanism of reactive oxygen species (ROS)-regulated cargo sorting into sEVs, which is critical for the potentially deleterious growth-promoting effect of the senescent cell secretome.

2017-02-28 | GSE81373 | GEO

Characterization of the small RNA content of Trypanosoma cruzi extracellular vesicles

Project description:A growing body of evidence in mammalian cells indicates that secreted vesicles can be used to mediate intercellular communication processes by transferring various bioactive molecules, including mRNAs and microRNAs. Based on these findings, we decided to analyze whether T. cruzi-derived extracellular vesicles contain RNA molecules and performed a deep sequencing and genome-wide analysis of a size-fractioned cDNA library (16M-bM-^@M-^S40 nt) from extracellular vesicles secreted by noninfective epimastigote and infective metacyclic trypomastigote forms. Our data show that the small RNAs contained in these extracellular vesicles originate from multiple sources, including tRNAs. In addition, our results reveal that the variety and expression of small RNAs are different between parasite stages, suggesting diverse functions. Taken together, these observations call attention to the potential regulatory functions that these RNAs might play once transferred between parasites and/or to mammalian host cells. Small RNAs profiles (16-40 nt) of epimastigote-derived extracellular vesicles, metacyclic trypomastigote-derived extracellular vesicles and metacyclic trypomastigote parental cells.

2014-07-15 | E-GEOD-54111 | biostudies-arrayexpress

Small RNA sequencing of small extracellular vesicles secreted by nonsenescent vs. senescent human umbilical cord mesenchymal stem cells

Project description:Small RNA sequencing of small extracellular vesicles secreted by nonsenescent vs. senescent human umbilical cord mesenchymal stem cells

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Tumor-derived Small Extracellular Vesicles Inhibit CAR T Cells

Project description:To examine the effect of tumor-derived small extracellular vesicles on Meso-CAR T cells. Series of genes of CAR T cells treated with or without tumor-derived small extracellular vesicles were detected.

2023-04-25 | GSE230000 | GEO

sRNAs from Neisseria extracellular vesicles

Project description:Similar to bacterial proteins that are targeted to distinct macrophages organelles via extracellular vesicles, we propose that these vesicles also traffic small RNAs to modulate specific host factors. To test this, we aim to sequence extracellular vesicle derived sRNA, and whole bacterial small RNAs to determine selectivity, and to identify their bacterial and mammalian targets (Experimental Plan in Table-1). For this we will collect highly purified vesicles from N. gonorrhoeae (strain MS11A). We will also treat mouse derived primary macrophages with extracellular vesicles and compare their RNA response to untreated macrophages (Table-2). This will provide novel insights into how macrophages respond to N. gonorrhoeae infections. This data is part of a pre-publication release. For information on the proper use of pre-publication data shared by the Wellcome Trust Sanger Institute (including details of any publication moratoria), please see http://www.sanger.ac.uk/datasharing/

2016-03-01 | E-ERAD-439 | biostudies-arrayexpress

Signatures of protein and small RNA cargoes in extracellular vesicles of mouse testis

Project description:We report the small RNA transcriptome of testicular extracellular vesicles in mouse testis. We established a testis dissociation protocol to isolate testicular extracellular vesicles. After treatment with proteinase K and RNase A, the RNA inside the extracellular vesicles was extracted and sequenced by small RNA-seq.

2022-01-31 | GSE158402 | GEO

Profiling of LNCaP-SL after circulating small extracellular vesicles treatment

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Project description:Exosomes and microvesicles (i.e., extracellular vesicles; EVs) have been identified within ovarian follicular fluid, and recent evidence suggests that EVs are able to elicit profound effects on ovarian cell function. While existence of miRNA within EVs has been reported, it remains unknown if EV size and concentration as well as their cargos (i.e., proteins and RNA) change during antral follicle growth. Extracellular vesicles isolated from follicular fluid of small, medium and large bovine follicles were similar in size, while concentration of EVs decreased progressively as follicle size increased. Electron microscopy indicated a highly purified population of the lipid bilayer enclosed vesicles that were enriched in exosome biomarkers including CD81 and Alix. Small RNA sequencing identified a large number of known and novel miRNAs that changed in the EVs of different size follicles. Ingenuity Pathway Analysis (IPA) indicated that miRNA abundant in small follicle EV preparations were associated with cell proliferation pathways, while those miRNA abundant in large follicle preparations were related to inflammatory response pathways. These studies are the first to demonstrate that EVs change in their levels and makeup during antral follicle development and point to the potential for a unique vesicle-mediated cell-to-cell communication network within the ovarian follicle. Examination of small RNA population in bovine follicular fluid extracellular vesicles isolated from antral follicles

2016-02-09 | E-GEOD-74879 | biostudies-arrayexpress

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