Document Detail

Prevalence of human xenotropic murine leukemia virus-related gammaretrovirus (XMRV) in dutch prostate cancer patients.
MedLine Citation:
PMID:  20878949     Owner:  NLM     Status:  In-Data-Review    
BACKGROUND: The occurrence of the retrovirus xenotropic murine leukemia virus (MLV)-related virus (XMRV) has been reported in prostate tissue of patients with prostate cancer (PrCa). Considering the potential great medical and social relevance of this discovery, we investigated whether this finding could be confirmed in an independent group of Dutch sporadic PrCa cases.
METHODS: We investigated the occurrence of XMRV in fresh-frozen PrCa specimens of 74 PrCa patients from The Netherlands. Total RNA and DNA were isolated, subjected to cDNA synthesis, and analyzed by real-time PCR targeting conserved XMRV sequences.
RESULTS: Spiking experiments showed that we were able to detect at least 10 copies of XMRV sequences in 100,000 cells by real-time PCR, demonstrating high sensitivity of the assay. XMRV sequences were detected in 3 out of 74 (i.e., 4%) PrCa specimens. The number of XMRV containing cells was extremely low (1 in 600-7,000 cells). This was corroborated by the fact that XMRV could not be detected in consecutive tissue sections of the initial XMRV-positive cases.
CONCLUSIONS: XMRV was rarely detected, and at extremely low levels, in sporadic PrCa samples from Dutch patients. When XMRV would play a causal role in prostate carcinogenesis, integration of the provirus could be expected to be present in, at least, a proportion of tumor cells. Therefore, our data do not support the claim that there is an association between XMRV infection and PrCa in Dutch PrCa patients. Prostate 77:415-420, 2011. © 2010 Wiley-Liss, Inc.
Gerald W Verhaegh; Arjan S de Jong; Frank P Smit; Sander A Jannink; Willem J G Melchers; Jack A Schalken
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Publication Detail:
Type:  Journal Article     Date:  2010-09-28
Journal Detail:
Title:  The Prostate     Volume:  71     ISSN:  1097-0045     ISO Abbreviation:  Prostate     Publication Date:  2011 Mar 
Date Detail:
Created Date:  2011-01-21     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8101368     Medline TA:  Prostate     Country:  United States    
Other Details:
Languages:  eng     Pagination:  415-20     Citation Subset:  IM    
Copyright Information:
Copyright © 2010 Wiley-Liss, Inc.
Department of Urology, Radboud University Nijmegen Medical Centre, Nijmegen, The Netherlands; Nijmegen Centre for Molecular Life Sciences, Nijmegen, The Netherlands.
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