<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Pancaldi, Cecilia</style></author><author><style face="normal" font="default" size="100%">Corazzari, Valentina</style></author><author><style face="normal" font="default" size="100%">Maniero, Stefania</style></author><author><style face="normal" font="default" size="100%">Mazzoni, Elisa</style></author><author><style face="normal" font="default" size="100%">Comar, Manola</style></author><author><style face="normal" font="default" size="100%">Martini, Fernanda</style></author><author><style face="normal" font="default" size="100%">Tognon, Mauro</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Merkel cell polyomavirus DNA sequences in the buffy coats of healthy blood donors.</style></title><secondary-title><style face="normal" font="default" size="100%">Blood</style></secondary-title><alt-title><style face="normal" font="default" size="100%">Blood</style></alt-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Adult</style></keyword><keyword><style  face="normal" font="default" size="100%">Aged</style></keyword><keyword><style  face="normal" font="default" size="100%">Base Sequence</style></keyword><keyword><style  face="normal" font="default" size="100%">Blood Buffy Coat</style></keyword><keyword><style  face="normal" font="default" size="100%">Carcinoma, Merkel Cell</style></keyword><keyword><style  face="normal" font="default" size="100%">Databases, Nucleic Acid</style></keyword><keyword><style  face="normal" font="default" size="100%">DNA, Viral</style></keyword><keyword><style  face="normal" font="default" size="100%">Expressed Sequence Tags</style></keyword><keyword><style  face="normal" font="default" size="100%">Humans</style></keyword><keyword><style  face="normal" font="default" size="100%">Italy</style></keyword><keyword><style  face="normal" font="default" size="100%">Middle Aged</style></keyword><keyword><style  face="normal" font="default" size="100%">Molecular Sequence Data</style></keyword><keyword><style  face="normal" font="default" size="100%">Polymerase Chain Reaction</style></keyword><keyword><style  face="normal" font="default" size="100%">Polyomavirus</style></keyword><keyword><style  face="normal" font="default" size="100%">Polyomavirus Infections</style></keyword><keyword><style  face="normal" font="default" size="100%">Prevalence</style></keyword><keyword><style  face="normal" font="default" size="100%">Reverse Transcriptase Polymerase Chain Reaction</style></keyword><keyword><style  face="normal" font="default" size="100%">Sequence Alignment</style></keyword><keyword><style  face="normal" font="default" size="100%">Sequence Analysis, DNA</style></keyword><keyword><style  face="normal" font="default" size="100%">Tumor Virus Infections</style></keyword><keyword><style  face="normal" font="default" size="100%">Viral Load</style></keyword><keyword><style  face="normal" font="default" size="100%">Young Adult</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2011</style></year><pub-dates><date><style  face="normal" font="default" size="100%">2011 Jun 30</style></date></pub-dates></dates><volume><style face="normal" font="default" size="100%">117</style></volume><pages><style face="normal" font="default" size="100%">7099-101</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;Merkel cell polyomavirus (MCPyV), a DNA tumor virus, has been found to be associated with Merkel cell carcinoma and chronic lymphocytic leukemia. MCPyV sequences have also been detected in various normal tissues in tumor-affected patients. Immunologic studies have detected MCPyV antibodies in as many as 80% of healthy blood donors. This high seroprevalence suggests that MCPyV infection is widespread in humans. In our study, buffy coats, which were examined for MCPyV DNA Tag sequences, showed a prevalence of 22%. Viral DNA load was revealed in blood samples from 10 to 100 molecules/100 000 cells. DNA sequencing confirmed that polymerase chain reaction amplicons belong to the MCPyV strain, MKL-1. To interpret the putative role of MCPyV in chronic lymphocytic leukemia, we may infer that, during a long period of viral persistence in blood cells, this DNA tumor virus may generate mutants, which are able to participate as cofactors in the multistep process of cell transformation.&lt;/p&gt;</style></abstract><issue><style face="normal" font="default" size="100%">26</style></issue><custom1><style face="normal" font="default" size="100%">http://www.ncbi.nlm.nih.gov/pubmed/21464370?dopt=Abstract</style></custom1></record></records></xml>