Exosomal miRNA profiling of plasma- and saliva-derived exosomes
Ontology highlight
ABSTRACT:
ORGANISM(S): Homo sapiens
PROVIDER: GSE209670 | GEO | 2022/08/31
REPOSITORIES: GEO
Similar Datasets
Project description:Exosomes were isolared from saliva od healthy individuals and head and neck cancer (HNSCC) patients.miRNA profiling of saliva-derived exosomes was perfomred using nCounter SPRINT system. Samples were grouped according to Healthy and Tumor based on their saliva-derived exosomal miRNA profile.
2022-06-28 | GSE207030 | GEO
Project description:Exosomes were isolated from plasma of n = 12 healthy donors (HD) and n = 16 head and neck cancer (HNSCC) patients. miRNA profiling of exosomes was performed using nCounter SPRINT system. miRNAs being predicted to target EMT-related genes (CDH1, VIM, TWIST1 and SNAI1/2) were selected and compared between HD and HNSCC patients.
2022-11-09 | E-MTAB-12408 | biostudies-arrayexpress
Project description:Exosomal miRNA profiling of saliva-derived exosomes
| PRJNA853342 | ENA
Project description:Exosomes are molecular entities derived from membrane vesicles of endocytic origin secreted by most cell types. These vesicles are implicated in cell-to-cell communication, deliver proteins and mRNA molecules between cells. Recent studies have shown that exosomes are found in body fluids such as saliva, blood, urine, amniotic fluid, malignant ascites, bronchoalveolar lavage fluid, synovial fluids and breast milk. Exosomes secreted through human saliva contain mRNA may potentially be useful for diagnostic purposes. Although the exact protective mechanism of saliva RNA is a topic of debate, the consensus is that the enrichment of mRNAs in these nano-vesicles in one of the features of the biomarker discoveries. Our aim was to determine if exosomes are present in human saliva and to nano-characterize their transcriptomic content. Exosomes were purified by differential ultracentrifugation, identified by immunoelectron microscopy, flow cytometry and western blot using a CD-63 antibody. Atomic force microscopy studies revealed ultra structural analysis of both size and density of exosomes. Microarray analysis revealed the presence of 590 mRNA core transcripts are relatively stable inside the exosomes, which can be of saliva mRNA biomarkers. Exosomal mRNA stability was determined by detergent lyses with treatment of RNase. Under in vitro conditions fluorescent dye labeled saliva exosomes were able to communicate between human oral keratinocytes studied by using fluorescence microscopy. The RNA from saliva exosomes can transfer their genetic information to human oral keratinocytes and alters gene expression in the new location. Together, these results suggest that saliva is involved in mRNA trafficking via exosomes, and provides a mechanism for cargoing passenger mRNAs. Our findings are consistent with proposal that exosomes can shuttle RNAs between cells and mRNA is protected inside these vesicles may be a possible resource for biomarker discovery. Experiment Overall Design: Human saliva exosomes were purified through differential centrifugation followed by RNA extraction and hybridization on Affymetrix microarrays. We were able to obtain normal human subjects saliva which are pooled and subjected to ultracentrifugation. The protocol was approved by UCLA Institutional review board. 1 ml of saliva exosomes were used to extract RNA followed by two rounds of amplification by Actorus Amp kit. The amplified RNA was biotin labled and hybridized with Affymetrix protocol.
2008-11-15 | E-GEOD-13494 | biostudies-arrayexpress
Project description:Exosomes are molecular entities derived from membrane vesicles of endocytic origin secreted by most cell types. These vesicles are implicated in cell-to-cell communication, deliver proteins and mRNA molecules between cells. Recent studies have shown that exosomes are found in body fluids such as saliva, blood, urine, amniotic fluid, malignant ascites, bronchoalveolar lavage fluid, synovial fluids and breast milk. Exosomes secreted through human saliva contain mRNA may potentially be useful for diagnostic purposes. Although the exact protective mechanism of saliva RNA is a topic of debate, the consensus is that the enrichment of mRNAs in these nano-vesicles in one of the features of the biomarker discoveries. Our aim was to determine if exosomes are present in human saliva and to nano-characterize their transcriptomic content. Exosomes were purified by differential ultracentrifugation, identified by immunoelectron microscopy, flow cytometry and western blot using a CD-63 antibody. Atomic force microscopy studies revealed ultra structural analysis of both size and density of exosomes. Microarray analysis revealed the presence of 590 mRNA core transcripts are relatively stable inside the exosomes, which can be of saliva mRNA biomarkers. Exosomal mRNA stability was determined by detergent lyses with treatment of RNase. Under in vitro conditions fluorescent dye labeled saliva exosomes were able to communicate between human oral keratinocytes studied by using fluorescence microscopy. The RNA from saliva exosomes can transfer their genetic information to human oral keratinocytes and alters gene expression in the new location. Together, these results suggest that saliva is involved in mRNA trafficking via exosomes, and provides a mechanism for cargoing passenger mRNAs. Our findings are consistent with proposal that exosomes can shuttle RNAs between cells and mRNA is protected inside these vesicles may be a possible resource for biomarker discovery. Keywords: Human saliva, exosomes, mRNA profiling, gene expression, disease diagnosis
2008-11-07 | GSE13494 | GEO
Project description:In this study, we compared microRNA (miRNA) profiles of salivary exosomes of patients with oral lichen planus with those of healthy controls. Saliva samples from 16 patients with oral lichen planus and 8 healthy controls were divided into 2 sets and were examined by performing miRNA microarray analysis. Examination of 8 oral lichen planus patients and 4 healthy controls. Each patient and control represent pooled RNAs from salivary exosomes of 8 patients and 4 healthy controls, respectively. Please note that each set (i.e. set1 and set2) was analysed independently.
2015-04-30 | E-GEOD-68407 | biostudies-arrayexpress
Project description:In this study, we compared microRNA (miRNA) profiles of salivary exosomes of patients with oral lichen planus with those of healthy controls. Saliva samples from 16 patients with oral lichen planus and 8 healthy controls were divided into 2 sets and were examined by performing miRNA microarray analysis. Examination of 8 oral lichen planus patients and 4 healthy controls. Each patient and control represent pooled RNAs from salivary exosomes of 8 patients and 4 healthy controls, respectively. Please note that each set (i.e. set1 and set2) was analysed independently.
2015-04-30 | E-GEOD-68406 | biostudies-arrayexpress
Project description:We compared the transcriptomic content of salivary exosomes vs. whole saliva via microarray (Affymetrix HU133 plus 2.0). Unstimulated saliva samples and derived exosome-like microvesicles were obtained from 3 healthy volunteers and processed for RNA isolation and microarray analysis.
2014-09-10 | E-GEOD-50700 | biostudies-arrayexpress
Project description:In this study, we compared microRNA (miRNA) profiles of salivary exosomes of patients with oral lichen planus with those of healthy controls. Saliva samples from 16 patients with oral lichen planus and 8 healthy controls were divided into 2 sets and were examined by performing miRNA microarray analysis.
2015-04-30 | GSE68407 | GEO
Project description:In this study, we compared microRNA (miRNA) profiles of salivary exosomes of patients with oral lichen planus with those of healthy controls. Saliva samples from 16 patients with oral lichen planus and 8 healthy controls were divided into 2 sets and were examined by performing miRNA microarray analysis.
2015-04-30 | GSE68406 | GEO