ArticleVirus genes2012
Phylogenetic and biological analysis of a laboratory-generated gammaretrovirus xenotropic murine leukemia virus-related virus (XMRV).
Article in Virus genes, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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8 authors at 2 institutions in 1 country.
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Abstract
A xenotropic murine leukemia virus-related virus (XMRV) has been reported to be an emerging pathogen associated with prostate cancer (PC) and chronic fatigue syndrome (CFS). However, recent studies have demonstrated that XMRV is a laboratory-derived virus resulting from genetic recombination between two mouse viral genomes during serial xenograft tissue transplantation. This study describes a phylogenetic analysis that compared XMRV with the ecotropic murine leukemia viruses (E-MLV), xenotropic MLV (X-MLV), and other retroviruses, including HTLV-1 and HIV-1. We found that sequences corresponding to three XMRV structural proteins (Env, Gag, and Pol) exhibited high degrees of homology with X-MLV (>91 %) and E-MLV (67-96 %), but not HTLV-1 (13-16 %) or HIV-1 (10-15 %), indicating that XMRV was derived from X-MLV and/or E-MLV. We then compared the infectivity of XMRV and E-MLV for human and murine lymphocytes, respectively. Results showed that human PBMCs were not susceptible to XMRV infection, suggesting that XMRV exhibits host cell tropism similar to E-MLV that only infects murine PBMCs. These data suggest that it is unlikely that this laboratory-generated retrovirus could cause disease in humans.
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