Oncogenic Viruses in Skull Base Chordomas

Autor: Axel zur Hausen, Sreedhar Pujari, Youssef Yakkioui, Jacobus J. van Overbeeke, Ernst-Jan M. Speel, Petra F. G. Wolffs, Merel J.M. Boderie, Yasin Temel
Přispěvatelé: RS: MHeNs - R3 - Neuroscience, Neurochirurgie, Promovendi MHN, MUMC+: MA AIOS Neurochirurgie (9), RS: GROW - R2 - Basic and Translational Cancer Biology, Pathologie, MUMC+: MA Neurochirurgie (3), MUMC+: MA Med Staf Artsass Interne Geneeskunde (9), Promovendi ODB, MUMC+: DA Klinische Pathologie (5), RS: NUTRIM - R3 - Respiratory & Age-related Health, RS: CAPHRI - R4 - Health Inequities and Societal Participation, Med Microbiol, Infect Dis & Infect Prev, MUMC+: MA Med Staf Spec Neurochirurgie (9)
Jazyk: angličtina
Rok vydání: 2018
Předmět:
Zdroj: World Neurosurgery, 112, E7-E13. Elsevier Science
ISSN: 1878-8750
Popis: Background Chordomas are rare tumors assumed to derive from notochordal remnants. We believe that a molecular switch is responsible for their malignant behavior. The involvement of oncogenic viruses has not been studied, however. Thus, in the present study, we investigated the presence of oncogenic viruses in chordomas. Methods DNA and RNA from snap-frozen chordoma (n = 18) and chondrosarcoma (n = 15) specimens were isolated. Real-time PCR or RT-PCR was performed to assess the presence of multiple oncogenic viruses, including herpesviridea (herpes simplex virus [HSV]-1, HSV-2, Epstein-Barr virus [EBV], cytomegalovirus, human herpesvirus [HHV]- 6, HHV-7, and Kaposi's sarcoma–associated herpesvirus), polyomaviridea (parvovirus B19 [PVB19], BK virus, JC virus, Simian virus 40, Merkel cell polyomavirus, human polyomavirus [HPyV]-6, and HPyV-7), papillomaviridae, and respiratory viruses. Immunohistochemistry (IHC) and in situ hybridization (ISH) were used to validate the positive results. Results PVB19 DNA was detected in 4 of 18 chordomas (22%) and in 1 of 15 chondrosarcomas (7%). IHC recognizing the VP2 capsid protein of PVB19 showed a positive cytoplasmic staining in 44% of the cases (14 of 32). HHV7 DNA was present in 6 of the 18 chordomas (33%). Genomic DNA of EBV was found in 22% of the samples; however, no positive results were found on ISH. None of the chordoma cases showed any presence of DNA from the remaining viruses. Conclusions Viral involvement in the etiology of chordomas is likely, with PVB19 the most distinguishing.
Databáze: OpenAIRE
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