Whole-transcriptome analysis reveals established and novel associations with TMPRSS2:ERG fusion in prostate cancer.

Abstract:

BACKGROUND/AIM:Shortcomings of current methods of prostate cancer detection call for improved biomarkers. The transmembrane protease, serine 2:ets-related gene (TMPRSS2:ERG) gene fusion leads to the overexpression of ERG, an E-twenty six (ETS) family transcription factor, and is the most prevalent genetic lesion in prostate cancer, but its clinical utility remains unclear. MATERIALS AND METHODS:Two radical prostatectomy samples were analysed by next-generation whole-transcriptome sequencing. The chosen samples differed in fusion gene status, as previously determined by reverse transcription polymerase chain reaction (RT-PCR). RESULTS:Next-generation sequencing identified the involvement of novel and previously reported prostate cancer-related transcripts, the WNT signalling pathway, evasion of p53-mediated anti-proliferation and several ETS-regulated pathways in the prostate cancer cases examined. Overexpression of Rho GDP-dissociation inhibitor (RhoGDIB), a gene associated with fusion-positive prostate cancer, was found to elicit spindle-shaped morphology, faster cell migration and increased cell proliferation, phenotypic changes suggestive of cancer progression. CONCLUSION:The present findings confirm the value of comprehensive sequencing for biomarker development and provide potential avenues of future study.

journal_name

Anticancer Res

journal_title

Anticancer research

authors

Chow A,Amemiya Y,Sugar L,Nam R,Seth A

subject

Has Abstract

pub_date

2012-09-01 00:00:00

pages

3629-41

issue

9

eissn

0250-7005

issn

1791-7530

pii

32/9/3629

journal_volume

32

pub_type

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