Sequencing of salivary exosomal small RNA from patients with ovarian tumor
Ontology highlight
ABSTRACT: Salivary exosomes were collected from healthy people and patients with benign and malignant tumors, and small RNA sequencing was performed to screen differential small Rnas for tumor screening
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.
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.
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.
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.
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.
Project description:Salivary gland myoepithelial tumors are relatively uncommon tumors with an unpredictable clinical course. More knowledge about their genetic profiles is necessary to identify novel predictors of disease. In this study, we subjected 27 primary tumors (15 myoepitheliomas and 12 myoepithelial carcinomas) to genome-wide microarray-based comparative genomic hybridization (array CGH). We set out to delineate known chromosomal aberrations in more detail and to unravel chromosomal differences between benign myoepitheliomas and myoepithelial carcinomas. Patterns of DNA copy number aberrations were analyzed by unsupervised hierarchical cluster analysis. Both benign and malignant tumors revealed a limited amount of chromosomal alterations (median of 5 and 7.5 respectively). In both tumor groups, high frequency gains (≥20%) were found mainly at loci of growth factors and growth factor receptors (e.g. PDGF, FGF(R)s, and EGFR). In myoepitheliomas, high frequency losses (≥20%) were detected at regions of proto-cadherins. Cluster analysis of the array CGH data identified three clusters. Differential copy numbers on chromosome arm 8q and chromosome 17 set the clusters apart. Cluster 1 contained a mixture of the two phenotypes (n=10), cluster 2 included mostly benign tumors (n=10), and cluster 3 only contained carcinomas (n=7). Supervised analysis between malignant and benign tumors revealed a 36 Mbp-region at 8q being more frequently gained in malignant tumors (p=0.007, FDR=0.05). This is the first study investigating genomic differences between benign and malignant myoepithelial tumors of the salivary glands at a genomic level. Both unsupervised and supervised analysis of the genomic profiles revealed chromosome arm 8q to be involved in the malignant phenotype of salivary gland myoepitheliomas.
Project description:Prostate cancer is one of the major cancers that seriously affect men's health. The low specificity of prostate-specific antigen (PSA) for prostate cancer has resulted in the overdiagnosis and subsequent overtreatment of clinically indolent tumors. There is an urgent need for noninvasive and easy diagnostic assays to help evaluate whether a prostate biopsy is warranted. Many non-coding RNAs (eg, microRNAs, long non-coding RNAs, circular RNAs) have been reported to play key roles in prostate cancer progression, showing great potential to impact cancer diagnostics and therapies. Remarkably, exosomes secreted by cells into body fluids contain molecules that reflect the disease information, and urinary exosomes could be used to detect prostate cancer as a new type of liquid biopsies. Non-coding RNAs are enriched and stable in exosomes. We performed high-throughput sequencing on urine-derived exosomes of 11 patients with high-grade (Gleason score 7 or greater) prostate cancer and 11 patients with benign prostatic hyperplasia to screen differentially expressed non-coding RNAs.