2012
DOI: 10.1111/j.1399-3062.2012.00760.x
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Cytomegalovirus infection and ganciclovir resistance caused by UL97 mutations in pediatric transplant recipients

Abstract: UL97 drug-resistant mutations occur in pediatric transplant recipients with CMV viremia and can cause serious disease. Screening for mutations conferring resistance to CMV antivirals should be considered for patients with persistent viremia during therapy and the sequences of UL97 mutations evaluated.

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Cited by 34 publications
(23 citation statements)
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“…CMV-infected infants after HSCT were found to develop ganciclovir resistance associated with the UL97 protein kinase (Ohta et al, 2001;Gohring et al, 2009;Kim et al, 2012;Erice et al, 1989). However, in some cases, multiple UL97 and UL54 (DNA polymerase) mutations that conferred resistance to ganciclovir and foscarnet (Choi et al, 2014) or to all three currently available anti-CMV drugs (i.e.…”
Section: Introductionmentioning
confidence: 99%
“…CMV-infected infants after HSCT were found to develop ganciclovir resistance associated with the UL97 protein kinase (Ohta et al, 2001;Gohring et al, 2009;Kim et al, 2012;Erice et al, 1989). However, in some cases, multiple UL97 and UL54 (DNA polymerase) mutations that conferred resistance to ganciclovir and foscarnet (Choi et al, 2014) or to all three currently available anti-CMV drugs (i.e.…”
Section: Introductionmentioning
confidence: 99%
“…Hanz ve arkadaşlarının 14 çalışmasında, M460V (3/17), A594V (2/17), L595S (6/17) ve L595F (2/17) direnç mutasyonlarını; Boivin ve arkadaşları 15 ise GCV'ye dirençli klinik izolatların yaklaşık %70'inin UL97 kodonundaki üç mutasyondan (460, 594 ve 595) birini içerdiğini gösterilmiştir. Kim ve arkadaşla-rı 16 da, pediatrik kemik iliği transplant hastalarında GCV direncini %5.1 oranında tespit etmişlerdir. Rapor edilmiş GCV'ye dirençli CMV hastalığının insidansı, transplantasyon sonrası yetişkin kalp transplant alıcılarında %1.5, pediatrik AKİT alıcılarında %3.8 olarak bulunmuştur 17 .…”
Section: Discussionunclassified
“…CMV antiviral ilaç direncinin, uzun süreli antiviral tedavi sonrasında görüldüğü ça-lışmalarla gösterilmiştir 16 . Yapılan çalışmalarda, beş UL54 gen bölgesinde antiviral ilaç direnç mutasyonu doğrulanmış; N408K, D413E ve A987G'nin GCV ve sidofovir (CDV) direncine; L802M'nin GCV ve FOS direncine ve A834P mutasyonunun çoklu ilaç direncine yol açtığı belirlenmiştir 14,[21][22][23] .…”
Section: Discussionunclassified
“…Mutation within the Ul97 and Ul54 genes encoding protein kinase and DNA polymerase, respectively, are main causes of resistance [3,4]. The most likely reason for advent of drug-resistant human CMV disease is that patients receive prolonged high-dose therapy [3,4].…”
mentioning
confidence: 99%