Viral nucleic acid synthesis in HSV infected neural cells

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Abstract
HSV-1 replication and synthesis of viral DNA and RNA have been examined in gliomas of human (COX) and rat origin (C6) and in mouse neuroblastomas (D2). COX cells fully support HSV-1 replication and show patterns of viral DNA and RNA synthesis similar to those seen in continuous line cells. HSV-1 also grows to high titers in D2 cells but without concomitant high levels of viral DNA and RNA synthesis in the infected cells. Finally, HSV-1 established a persistent infection in C6 cells. Viral mRNA and DNA synthesis could not be detected in these cultures. At cycles of approximately 15–20 days, the persistently infected cultures exhibited massive CPE and relatively high production of infectious HSV.