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Deep sequencing identified serum extracellular vesicle delivered miR-181a-5p as an indicator for bone-metastatic prostate cancer (microarray)

ABSTRACT: Purpose: The goals of this study are to compare the serum extracellular vesicle (EV) delivered miRNA levels of patients with bone-metastatic prostate cancer (PCa), non-bone -metastatic PCa and benign prostatic hyperplasia (BPH), and to identify EV-delivered microRNAs in patient’s serum as indicators for bone-metastatic PCa. Methods:Serum extracellular vesicle delivered miRNA profiles of patients with bone-metastatic PCa or non-bone -metastatic PCa or BPH were generated by miRNA chip array, using Agilent-070156 Human_miRNA_V21.0_Microarray plateform. Results: Differential analysis showed the expressions of 27 EV delivered miRNAs were significantly different between serum of patients with bone-metastatic PCa and non-bone-metastatic PCa with a p value <0.05. the expressions of 5 EV delivered miRNAs were confirmed with qRT–PCR. Conclusions: Serum EV-delivered miR-181a-5p is a promising diagnostic biomarker for bone-metastatic PCa.

ORGANISM(S): Homo sapiens

PROVIDER: GSE134266 | GEO | 2020/01/31

REPOSITORIES: GEO

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Deep sequencing identified serum extracellular vesicle delivered miR-181a-5p as an indicator for bone-metastatic prostate cancer

Project description:Purpose: The goals of this study are to compare the serum extracellular vesicle (EV) delivered miRNA levels of patients with bone-metastatic prostate cancer (PCa), non-bone -metastatic PCa and benign prostatic hyperplasia (BPH), and to identify EV-delivered microRNAs in patient’s serum as indicators for bone-metastatic PCa. Methods:Serum extracellular vesicle delivered miRNA profiles of patients with bone-metastatic PCa or non-bone -metastatic PCa or BPH were generated by deep sequencing, using Illumina HiSeqTM 2500 platform Results: Using an optimized data analysis method, we mapped about 17 million sequence reads per sample. Differential analysis showed the expressions of 35 EV delivered miRNAs were significantly different between serum of patients with PCa and BPH, with a p value <0.05. the expressions of 5 EV delivered miRNAs were confirmed with qRT–PCR. Conclusions: Serum EV-delivered miR-181a-5p is a promising diagnostic biomarker for bone-metastatic PCa.

2020-01-31 | GSE134205 | GEO

Transcriptomic profiling of urine extracellular vesicles reveals alterations of CDH3 in prostate cancer

Project description:One of the challenges of current research in prostate cancer is to improve the differential non-invasive diagnosis of prostate cancer (PCa) and benign prostate hyperplasia (BPH). Extracellular vesicles (EV) are emerging structures with promising properties for intercellular communication. In addition, the characterization of EV in biofluids is an attractive source of non-invasive diagnostic, prognostic and predictive biomarkers. Here we show that urinary EV (uEV) from prostate cancer patients exhibit genuine and differential physical and biological properties. Importantly, transcriptomics characterization of uEVs led us to define the decreased abundance of Cadherin 3, type 1 (CDH3) transcript in uEV from PCa patients. Tissue and cell line analysis strongly suggested that the status of CDH3 in uEVs is a distal reflection of changes in the expression of this cadherin in the prostate tumor. Our results reveal that uEVs could represent a non-invasive tool to inform about the molecular alterations in prostate cancer. RNA extraction was performed in 10 ultracentrifuge-isolated-uEVs samples (4 BPH, 6 Pca)

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Expression profiles in PCa And BPH from Chinese patients

Project description:This SuperSeries is composed of the following subset Series: GSE28204: mRNA expression profile in PCa And BPH from Chinese patients GSE34932: miRNA expression profile in PCa And BPH tissue from Chinese patients Refer to individual Series

2012-02-28 | E-GEOD-34933 | biostudies-arrayexpress

Deep sequencing identified serum extracellular vesicle delivered miR-181a-5p as an indicator for bone-metastatic prostate cancer

Project description:Deep sequencing identified serum extracellular vesicle delivered miR-181a-5p as an indicator for bone-metastatic prostate cancer

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Altered expression of microRNAs in bone metastasis compared with human prostate cancer

Project description:The principal problem arising from prostate cancer (PCa) is its propensity to metastasize to bone. MicroRNAs (miRNAs) play a crucial role in many tumor metastases.The importance of miRNAs in bone metastasis of PCa has not been elucidated to date. We investigated whether the expression of certain miRNAs was associated with bone metastasis of PCa. We examined the miRNA expression profiles of 6 primary and 7 bone metastatic PCa samples by miRNA microarray analysis. Total RNA was taken from the specimens, low molecular weight RNA was seperate and labeled , and then hybridized to capitalbio V3.0 biochip representing about 924 microRNA.

2011-01-31 | E-GEOD-26964 | biostudies-arrayexpress

Deep sequencing identified serum extracellular vesicle delivered miR-181a-5p as an indicator for bone-metastatic prostate cancer (microarray)

Project description:Deep sequencing identified serum extracellular vesicle delivered miR-181a-5p as an indicator for bone-metastatic prostate cancer (microarray)

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Identification of microRNAs differentially expressed in prostatic secretions of patients with prostate cancer

Project description:In this study, we aimed to identify a miRNA expression signature that could be used to distinguish PCa from BPH. We have shown for the first time in the literature the presence of miRNAs in the PSS. We suggest PSS as a powerful non-invasive source for evaluation of prognosis in PCa, since prostate massages can be easily applied during routine examination. Our results showed that certain differentially expressed miRNAs in PSS could be used as diagnostics markers. Prostate secretion samples (PSS) from 23 PCa and 25 benign prostate hyperplasia (BPH) patients were obtained from Urology Department of Bagcilar Educational and Research Hospital (Istanbul). MicroRNA (miRNA) profiling of eight PSS (four from BPH, four from PCa patients) were performed using microarray. Four of significantly deregulated miRNAs were further confirmed using quantitative reverse-transcription PCR (qRT-PCR). Statistical analysis was performed using Student’s t-test. ROC curves were plotted with SPSS-15.0.

2013-09-27 | E-GEOD-49298 | biostudies-arrayexpress

Evaluation of microRNAs in urine samples as indicators of prostate cancer occurrence

2012-07-12 | GSE39314 | GEO

Evaluation of microRNAs in urine samples as indicators of prostate cancer occurrence

Project description:miRNAs have been proven to be very useful biomarkers, readily detectable in body fluids, particularly urine may be a valuable source to identify changes in miRNA levels that contribute to better differentiate prostate cancer (PCa) from benign prostate hyperplasia (BPH) cases. In order to characterize microRNA expression in urine samples from PCa, we analyzed expression of 376 microRNAs in 9 samples of PCa and 9 of BPH. The Normalized Ct values were compared between PCa and BPH. Statistical comparisons were made using Mann-Whitney U test, considering two different distributions. We found statiscally differences n expression for 21 miRNAs (Fold change >2 and P value<0.05). For the initial screening of all the studied samples, we selected only those with a concentration above 100 ng/ml, for a total of 9 samples of group of PCa and 9 BPH group. The isolated RNA was evaluated by measuring the absorbance at 260 nm and 280 nm. RNA aliquots from specimens were pooled and reverse transcription (RT) reaction was pweformed. In total, we formed 3 pools from BPH specimens and 3 from PCa ones. The RT product was used to perform a preamplification reaction. The product of preamplification teaction was loaded into the Taqman Homo sapiens microRNA Low density arrays (TLDA) panel A and amplification signal was detected using the 7900 FAST real time thermal cycler (ABI).

2012-07-12 | E-GEOD-39314 | biostudies-arrayexpress

Extracellular vesicle-based cancer panels diagnose glioblastomas with high sensitivity and specificity

Project description:This study focused on the development of serum extracellular vesicle (EV)-based glioblastoma tumor marker panels that can be used in the clinic to diagnose glioblastomas.

2023-08-21 | GSE228512 | GEO

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