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ABSTRACT: CRC urine microbiome from extra-vesicles (pharma)

PROVIDER: PRJNA747733 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR15182703_1.fastq.gz	Fastqsanger.gz
	SRR15182703_2.fastq.gz	Fastqsanger.gz
	SRR15182704_1.fastq.gz	Fastqsanger.gz
	SRR15182704_2.fastq.gz	Fastqsanger.gz
	SRR15182705_1.fastq.gz	Fastqsanger.gz

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Project description:CRC fecal microbiome from extra-vesicles (pharma)

| PRJNA747732 | ENA

RNA-associated to Urinary Vesicles as a Suitable Non-invasive Source for Diagnostic Purposes in Bladder Cancer

Project description:Bladder cancer is one of the most common cancers. Since prognosis ameliorates with early detection, it is a challenge to develop techniques that could replace or complement the current diagnosis protocols. The study of extracellular vesicles (EVs) that are present in urine samples has become an attractive alternative. The present study describes the mRNA content of vesicles isolated from voided urine samples within bladder cancer context. To discover a genetic signature of cancer, RNA associated to EVs was analyzed by microarray technique. Total RNA isolated from Extracellular Vesicles obtained from urine of bladder cancer patients was compared with RNA isolated from urinary vesicles of non-cancer patients.

2014-01-29 | E-GEOD-51843 | biostudies-arrayexpress

RNA in extracellular vesicles during adolescence reveal immune, energetic and microbial imprints of early life adversity

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Spatial extracellular vesicle microRNA profiles in ovarian cancer

Project description:We newly invented the EV sheet, which is a unique nanofiber paper to capture extracellular vesicles from around 10 uL of bio-fluids. In this study, we investigated miRNA profiles of tumor-surface ascites, serum, and urine using the EV sheet.

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Project description:Urine microbiome

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Project description:Urine microbiome

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Project description:urine microbiome

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Cell and microvesicle urine microRNA deep sequencing profiles from healthy individuals

Project description:Background: Urine is a potential source of biomarkers for diseases of the kidneys and urinary tract. RNA, including microRNA, is present in the urine enclosed in detached cells or in extracellular vesicles (EVs) or bound and protected by extracellular proteins. Detection of cell- and disease-specific microRNA in urine may aid early diagnosis of organ-specific pathology. In this study, we applied barcoded deep sequencing to profile microRNAs in urine of healthy volunteers, and characterized the effects of sex, urine fraction (cells vs. EVs) and repeated voids by the same individuals. Results: Compared to urine-cell-derived small RNA libraries, urine-EV-derived libraries were relatively enriched with miRNA, and accordingly had lesser content of other small RNA such as rRNA, tRNA and sn/snoRNA. Unsupervised clustering of specimens in relation to miRNA expression levels showed prominent bundling by specimen type (urine cells or EVs) and by sex, as well as a tendency of repeated (first and second void) samples to neighbor closely. Likewise, miRNA profile correlations between void repeats, as well as fraction counterparts (cells and EVs from the same specimen) were distinctly higher than correlations between miRNA profiles overall. Differential miRNA expression by sex was similar in cells and EVs. Conclusions: miRNA profiling of both urine EVs and sediment cells can convey biologically important differences between individuals. However, to be useful as urine biomarkers, careful consideration is needed for biofluid fractionation and sex-specific analysis, while the time of voiding appears to be less important.

2016-01-28 | GSE72183 | GEO

The effect of colorectal cancer (CRC) organoid-derived extracellular vesicles on the expression profile of fibroblasts

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.

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Altered fecal small RNA profiles in colorectal cancer reflect gut microbiome composition in stool samples

Project description:Dysbiotic configurations of the human gut microbiota have been linked with colorectal cancer (CRC). Human small non-coding RNAs are also implicated in CRC and recent findings suggest that their release in the gut lumen contributes to shape the gut microbiota. Bacterial small RNAs (bsRNAs) may also play a role in carcinogenesis but their role is less explored. Here, we performed small RNA and shotgun sequencing on 80 stool specimens of patients with CRC, or adenomas, and healthy subjects collected in a cross-sectional study to evaluate their combined use as a predictive tool for disease detection. We reported a considerable overlap and correlation between metagenomic and bsRNA quantitative taxonomic profiles obtained from the two approaches. Furthermore, we identified a combined predictive signature composed by 32 features from human and microbial small RNAs and DNA-based microbiome able to accurately classify CRC from healthy and adenoma samples (AUC= 0.87). In summary we reported evidence that host-microbiome dysbiosis in CRC can be observed also by altered small RNA stool profiles. Integrated analyses of the microbiome and small RNAs in the human stool may provide insights for designing more accurate tools for diagnostic purposes.

2019-08-30 | GSE132236 | GEO

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