Lessons from Polyomavirus Immunofluorescence Staining of Urinary Decoy Cells by Sahra Pajenda, Zsofia Hevesi, Michael Eder, Daniela Gerges, Monika Aiad, Oliver Koldyka, Wolfgang Winnicki, Ludwig Wagner, Farsad Eskandary, Alice Schmidt

“…Decoy cells that can be detected in the urine sediment of immunosuppressed patients are often caused by the uncontrolled replication of polyomaviruses, such as BK-Virus (BKV) and John Cunningham (JC)-Virus (JCV), within the upper urinary tract. Due to the wide availability of highly sensitive BKV and JCV PCR, the diagnostic utility of screening for decoy cells in urine as an indicator of polyomavirus-associated nephropathy (PyVAN) has been questioned by some institutions. …”
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Molecular characterization of high-risk human papillomaviruses in renal cell carcinoma by Ali Farhadi Andar Abi

“…The prevalence of co-infection of HR-HPV with oncogenic viruses including Epstein–Barr virus, BK virus, JC virus or Human Herpesvirus 6 was determined as well. …”
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Demonstrating the reduction of enteric viruses by drinking water treatment during snowmelt episodes in urban areas by Émile Sylvestre, Michèle Prévost, Jean-Baptiste Burnet, Xiaoli Pang, Yuanyuan Qiu, Patrick Smeets, Gertjan Medema, Mounia Hachad, Sarah Dorner

“…During these peaks, sequential grab samples were collected at the source and throughout the treatment train to evaluate concentrations of rotavirus, adenovirus, norovirus, enterovirus, JC virus, reovirus, astrovirus and sapovirus by reverse transcription and real-time quantitative PCR. …”
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IMUNO-HISTOQUÍMICA CONTRIBUINDO PARA DIAGNÓSTICO ETIOLÓGICO DE LESÃO FOCAL CEREBRAL EM HIV/AIDS by Valéria Borges Domingues Batista, Adriana Oliveira Guilarde, Juliana de Souza Couto Eckert, Pamella Wander Rosa, Diego Gonçalves Camargo, Taiguara Fraga Guimaraes, Adriano Martins Lino Filho, Camila Xavier Cabral, João Victor Soares Coriolano Coutinho, Luiz Alves Ferreira Filho, Moara Alves Santa Bárbara Borges

“…As lesões expansivas cerebrais em indivíduos com AIDS têm diversas causas: toxoplasmose, linfoma primário, tuberculose, criptococose e JC vírus (JCV), incluindo possibilidade de coinfecções. …”
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Progression of a series of patients with relapsing-remitting multiple sclerosis treated for 7 years with natalizumab using the “no evidence of disease activity” parameter by A. Pato Pato, E. Costa Arpín, A. Rodríguez Regal, I. Rodríguez Constenla, I. Cimas Hernando, I. Muñoz Pousa, L. Naya Ríos, J.R. Lorenzo González, M.C. Amigo Jorrín, J.M. Prieto González

“…Fourteen of these patients (56%) dropped out due to the appearance of anti–JC virus antibodies, either in isolation or associated with another cause. …”
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Real-World Effectiveness of Natalizumab Extended Interval Dosing in a French Cohort by Juliette Pelle, Anais R. Briant, Pierre Branger, Nathalie Derache, Charlotte Arnaud, Christine Lebrun-Frenay, Mikael Cohen, Lydiane Mondot, Jerome De Seze, Kevin Bigaut, Nicolas Collongues, Laurent Kremer, Damien Ricard, Flavie Bompaire, Charlotte Ohlmann, Magali Sallansonnet-Froment, Jonathan Ciron, Damien Biotti, Beatrice Pignolet, Jean-Jacques Parienti, Gilles Defer

“…There were no significant differences between relapse rates (0.043 vs. 0.083 per year, respectively; p = 0.14) or Expanded Disability Status Scale mean scores (2.43 vs. 2.72, respectively; p = 0.18); anti-JC virus index values were similar (p = 0.23); and no instances of PML were reported. …”
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HIV Viremia Is Associated With APOL1 Variants and Reduced JC-Viruria by Etty Kruzel-Davila, Etty Kruzel-Davila, Barbara Mensah Sankofi, Barbara Mensah Sankofi, Ernestine Kubi Amos-Abanyie, Anita Ghansah, Alexander Nyarko, Seth Agyemang, Seth Agyemang, Gordon A. Awandare, Moran Szwarcwort-Cohen, Anat Reiner-Benaim, Basem Hijazi, Ifeoma Ulasi, Yemi Raheem Raji, Vincent Boima, Charlotte Osafo, Victoria May Adabayeri, Michael Matekole, Timothy O. Olanrewaju, Samuel Ajayi, Manmak Mamven, Sampson Antwi, Adebowale D. Ademola, Jacob Plange-Rhule, Fatiu Arogundade, Priscilla Abena Akyaw, Cheryl A. Winkler, Babatunde L. Salako, Akinlolu Ojo, Karl Skorecki, Karl Skorecki, Karl Skorecki, Dwomoa Adu

“…HIV viremia was associated with increased CKD risk (OR 7.45, 95% CI 1.66–33.35, P = 0.009) and with a significant reduction of JC virus urine shedding (OR 0.35, 95% CI 0.12–0.98, p = 0.046). …”
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Spanish consensus on the use of natalizumab (Tysabri®) – 2011 by O. Fernández, J.A. García-Merino, R. Arroyo, J.C. Álvarez-Cermeño, T. Arbizu, G. Izquierdo, A. Saiz, J. Olascoaga, A. Rodríguez-Antigüedad, J.M. Prieto, C. Oreja-Guevara, M.A. Hernández, X. Montalbán

“…The risk of PML should be stratified into high, medium and low risk groups according to antibodies against JC virus status, prior immunosuppressive therapy, and treatment duration. …”
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Intercellular Transmission of Naked Viruses through Extracellular Vesicles: Focus on Polyomaviruses by Francois Helle, Lynda Handala, Marine Bentz, Gilles Duverlie, Etienne Brochot

“…This has been shown for several RNA viruses that belong to the Picornaviridae, Hepeviridae, Reoviridae, and Caliciviridae families; however, recent studies also demonstrated that the BK and JC viruses, two DNA viruses that belong to the Polyomaviridae family, use a similar strategy. …”
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The prevalence of human polyomaviruses in urine samples of immunocompetent individuals in the Serbian population by Karalić Danijela, Lazarević Ivana, Ćupić Maja, Jovanović Tanja

“…The BK (BKV) and JC viruses (JCV) are human polyomaviruses. After primary infection, they persist as latent infection in the kidneys. …”
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Characterization of self-assembled virus-like particles of Merkel cell polyomavirus. by Tian-Cheng Li, Kenji Iwasaki, Harutaka Katano, Michiyo Kataoka, Noriyo Nagata, Kazumi Kobayashi, Tetsuya Mizutani, Naokazu Takeda, Takaji Wakita, Tetsuro Suzuki

“…The MCPyV-LPs did not share antigenic determinants with BK- and JC viruses (BKPyV and JCPyV). The VLP-based enzyme immunoassay was applied to investigate age-specific prevalence of MCPyV infection in the general Japanese population aged 1-70 years. …”
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Induction of Brain Tumors by the Archetype Strain of Human Neurotropic JCPyV in a Transgenic Mouse Model by Luis Del Valle, Kamel Khalili

“…JC Virus (JCPyV), a member of the <i>Polyomaviridiæ</i> family, is a human neurotropic virus with world-wide distribution. …”
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