Identification of candidate miRNAs in early-onset and late-onset prostate cancer by network analysis.

Abstract:

:The incidence of patients under 55 years old diagnosed with Prostate Cancer (EO-PCa) has increased during recent years. The molecular biology of PCa cancer in this group of patients remains unclear. Here, we applied weighted gene coexpression network analysis of the expression of miRNAs from 24 EO-PCa patients (38-45 years) and 25 late-onset PCa patients (LO-PCa, 71-74 years) to identify key miRNAs in EO-PCa patients. In total, 69 differentially expressed miRNAs were identified. Specifically, 26 and 14 miRNAs were exclusively deregulated in young and elderly patients, respectively, and 29 miRNAs were shared. We identified 20 hub miRNAs for the network built for EO-PCa. Six of these hub miRNAs exhibited prognostic significance in relapse-free or overall survival. Additionally, two of the hub miRNAs were coexpressed with mRNAs of genes previously identified as deregulated in EO-PCa and in the most aggressive forms of PCa in African-American patients compared with Caucasian patients. These genes are involved in activation of immune response pathways, increased rates of metastasis and poor prognosis in PCa patients. In conclusion, our analysis identified miRNAs that are potentially important in the molecular pathology of EO-PCa. These genes may serve as biomarkers in EO-PCa and as possible therapeutic targets.

journal_name

Sci Rep

journal_title

Scientific reports

authors

Parra-Medina R,López-Kleine L,Ramírez-Clavijo S,Payán-Gómez C

doi

10.1038/s41598-020-69290-7

subject

Has Abstract

pub_date

2020-07-23 00:00:00

pages

12345

issue

1

issn

2045-2322

pii

10.1038/s41598-020-69290-7

journal_volume

10

pub_type

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