The effect of colorectal cancer (CRC) organoid-derived extracellular vesicles on the expression profile of fibroblasts
Ontology highlight
ABSTRACT:
PROVIDER: PRJNA473425 | ENA |
REPOSITORIES: ENA
Similar Datasets
Project description:Extracellular vesicles (EV) are membrane-surrounded vesicles secreted by cells that carry biologically important molecules to the target cells. EVs form a heterogenous group and they represent a novel way of intercellular communication. To study the importance of colorectal cancer (CRC)-derived EVs on stromal fibroblasts, we applied CRC patient-derived 3D organoid cultures and commercially available human colon fibroblasts. We studied the gene expression changes in fibroblasts in the presence and absence pf CRC-derived EVs.
2019-02-25 | GSE114979 | GEO
Project description:Background: There is some evidence demonstrating the effect of psychological interventions in improvements in health biological parameters. To best of our knowledge, no study had addressed the impact of any psychological intervention on extracellular vesicles. In addition, Mindfulness-Based Cognitive Therapy (MBCT) and Emotion Focused Therapy for Cancer Recovery (EFT-CR) in the group have never been explored regarding extracellular vesicles and the effectiveness of these was not compared yet.
Objectives:
1. To explore and compare the effect of MBCT and EFT-CR on biological parameters and psychological variables in distressed people who have had breast, prostate and colorectal cancer;
2. In addition, we will explore the acceptability through recruitment and retention rates of MBCT and EFT-CR in group and evaluate whether these interventions are appropriate for a larger clinical trial.
Methods: The design of this study is a parallel randomized controlled trial. Participants will be randomized into MBCT, EFT-CR or usual care. Outcome measures will be assessed before, at the end of the intervention (8 weeks) and follow-ups (24 and 52 weeks from the baseline moment).
Hypotheses: The researchers expected that both interventions will have an effect on extracellular vesicles and other study biomarkers as well as improvements in psychological outcomes, compared to treatment as usual (TAU) group. Regarding the comparative effectiveness, we did not have evidence to hypothesize which one of the interventions will be superior in both biological (extracellular vesicles) and psychological outcomes.
Contribution for practice: The results of this preliminary study would permit to know if there are benefits of these psychological interventions on changes in extracellular vesicles and on psychological outcomes related to health. In addition, this study will permit to determine the acceptability of conducting a larger randomized controlled trial.
| 2332322 | ecrin-mdr-crc
Project description:IMP1/IGF2BP1 enters extracellular vesicles in colorectal cancer
2022-09-30 | GSE198804 | GEO
Project description:To further investigate the molecular mechanisms by which EVs mediated the abnormal localization of tight junction proteins and adherence junction protein, we performed miRNA microarray analysis of extracellular vesicles isolated from breast cancer cells. miRNA expression in extracellular vesicles was collected from MDA-MB-231-D3H1, MDA-MB-231-D3H2LN, BMD2a and BMD2b breast cancer cell lines.
2015-04-02 | E-GEOD-63445 | biostudies-arrayexpress
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
Project description:comparison miRNA content between extracellular vesicles from AAV-transduced or intact cells
2021-08-07 | E-MTAB-10858 | biostudies-arrayexpress
Project description:Colon and liver have an inseparable relationship since embryological development. More than half of colorectal cancer patients developed liver metastases accompanied with poor prognosis. Recent evidence suggests that distant metastatic organs are “educated” by primary tumor-derived extracellular vesicles. Here we found that the liver-specific pro-metastatic effect of colorectal cancer (CRC)-derived small extracellular vesicles (sEVs). In vivo experiments showed that the injected fluorescence-labeled CRC-derived sEVs were accumulated and taken up by macrophages in the mouse liver. MicroRNA sequencing revealed the highest expression of microRNA (miR)-21-5p in CRC-derived sEVs. In vitro co-culture experiments showed that the sEVs polarized macrophages toward an interleukin-6(IL-6)-secreting type of macrophages. Further mouse experiments and microarray studies indicated that the CRC-sEVs increased macrophage invasion and induced an inflammatory microenvironment in the liver, which promoted liver metastasis of orthotropic- transplanted CRC cells. Most importantly, the TCGA data analysis and clinical sample examinations demonstrated that miR-21-5p expressions were sharply raised in the CRC tissues. We apply Tethered Cationic Lipoplex Nanoparticles (tCLN) technology in detecting CRC patients’ sEVs miR-21 in plasma and found strong correlation between sEVs-miR-21 and CRC liver metastasis. The serum IL-6 level was much higher in CRC patients with liver metastasis, and the liver metastasis relevance of MiR-21, macrophages, and IL-6 in CRC patients. Thus, we propose the role of CRC-derived sEVs in the formation of an inflammatory pre-metastatic niche in liver for CRC metastasis through macrophage polarization via a miR-21/TLRs pro-inflammation pathway.
2019-07-01 | GSE100435 | GEO
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
Project description:Exosomes/microvesicles (hereafter referred to as extracellular vesicles) were isolated from the ULF of day 14 cyclic and pregnant ewes using ExoQuick-TC. Extracellular vesicle RNA was pooled (n=4 per status) and analyzed for small RNAs by sequencing on the Ion Torrent PGM platform and analysis with CLC Genomics Workbench small RNA workflow based on the miRBase (Release 19) Bos taurus database. Small RNA analysis of day 14 uterine luminal fluid extracellular vesicles isolated from pregnant and cyclic ewes.
2014-01-11 | E-GEOD-53974 | biostudies-arrayexpress
Project description:In Rspondin-based 3D cultures, Lgr5 stem cells from multiple organs form ever-expanding epithelial organoids that retain their tissue identity. We report the establishment of tumor organoid cultures from 20 consecutive colorectal (CRC) patients. For most, organoids were also generated from adjacent normal tissue. The organoids closely resemble the original tumor. The spectrum of genetic changes observed within the 'living biobank' agrees well with previous large-scale mutational analyses of CRC. Gene expression analysis indicates that the major CRC molecular subtypes are represented. Tumor organoids are amenable to robotized, high-throughput drug screens allowing detection of gene-drug associations. As an example, a single organoid culture was exquisitely sensitive to Wnt secretion (porcupine) inhibitors and carried a mutation in the negative Wnt feedback regulator RNF43 (rather than in APC). Organoid technology may fill the gap between cancer genetics and patient trials, complement cell line- and xenograft-based drug studies and allow personalized therapy design. We generated organoids from healthy tissue and coloncarcinoma tissue. The organoids were trypsinized, plated in matrigel and overlaid with medium. After three days, RNA was isolated using Qiagen RNAeasy. Medium conditions are the same for all organoids, irrespective of their origin.
2015-05-07 | E-GEOD-64392 | biostudies-arrayexpress