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Genomic Analysis of Benign Prostatic Hyperplasia

ABSTRACT: Genomic Analysis of Benign Prostatic Hyperplasia

PROVIDER: PRJNA492376 | ENA |

REPOSITORIES: ENA

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Genomic Analysis of Benign Prostatic Hyperplasia

Project description:Genomic Analysis of Benign Prostatic Hyperplasia

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Expression data from benign prostatic hyperplasia samples and normal controls

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Different expressed genes in epithelium and stromal of Benign Prostatic Hyperplasia

Project description:To identify the genes differently expressed in the epithelium and the stromal of Benign Prostatic Hyperplasia (BPH), we collect the epithelium and the stromal from the patients with benign prostatic hyperplasia by laser micro-dissection. And then, Affymetrix HG-U133_Plus_2 gene-chip was used to detect and compare the expression level of genes. To find which genes are most abundantly expressed in epithelium and stromal and what is the role of these genes in the pathogenesis of BPH. 8 prostate tissues were collected from patients undergone transurethral resection of the prostate (TURP) with informed consent. Each tissue was embedded in O.C.T and subsequently used for laser micro-dissection. The total RNA was isolated from each sample and equally mixed for gene-chip assay.

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Combination of autoantibody signature with PSA level enables a highly accurate blood-based differentiation of prostate cancer patients from patients with benign prostatic hyperplasia

Project description:Although an increased level of the prostate-specific antigen can be an indication for prostate cancer, other reasons often lead to a high rate of false positive results. Therefore, an additional serological screening of autoantibodies in patients’ sera could improve the detection of prostate cancer. We performed protein macroarray screening with sera from 49 prostate cancer patients, 70 patients with benign prostatic hyperplasia and 28 healthy controls and compared the autoimmune response in those groups. We were able to distinguish prostate cancer patients from normal controls with an accuracy of 83.2%, patients with benign prostatic hyperplasia from normal controls with an accuracy of 86.0% and prostate cancer patients from patients with benign prostatic hyperplasia with an accuracy of 70.3%. Combining seroreactivity pattern with a PSA level of higher than 4.0 ng/ml this classification could be improved to an accuracy of 84.1%. For selected proteins we were able to confirm the differential expression by using Lluminex on 84 samples. We provide a minimally invasive serological method to reduce false positive results in detection of prostate cancer and according to PSA screening to distinguish men with prostate cancer from men with benign prostatic hyperplasia.

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Genome-wide analysis of prostatic tissue gene expression from patients with benign prostatic hyperplasia

Project description:Analysis of gene expression in prostatic tissue from BPH patients with and without SRD5A2 gene methylation. The hypothesis is that BPH patients with DNA methylation of the SRD5A2 gene promoter have impaired conversion of testosterone to dihydrotestosterone, and therefore may use an alternative signaling pathway for prostatic tissue growth. Here, we compare gene expression profiles of SRD5A2-methylated vs. unmethylated prostatic tissue to nominate alternative biological pathways relevant in each molecular subtype of BPH.

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Gene expression in human basal, luminal, and stromal cell populations from benign prostatic hyperplasia tissues and comparisons with cultured basal cells.

Project description:The understanding of common prostatic disorders has been restricted by both cellular heterogeneity and the scarcity of established cell lines, although organoid technology, based on primary cultures, promises much for the future. In particular, little is known about the aetiology of benign prostatic hyperplasia (BPH), for which culture of single cell types might not accurately not reflect the stromal and epithelial overgrowths observed in tissues. To address the applicability of primary cell culture models of prostate disease, we compared cell type-specific mRNA expression patterns in BPH tissues and primary basal cells cultured from the same transurethral biopsies.

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CNV Identification: Prostate Cancer (PCa) vs Benign Prostatic Hyperplasia (BPH) Human DNA Samples

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