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DNA double-strand break repair functions defend against parvovirus infection
T J Tauer1, M H Schneiderman, J K Vishwanatha
1Department of Pathology and Microbiology, University of Nebraska Medical Center, Omaha 68198-6495, USA.
Journal of Virology
|September 1, 1996
Abstract:
We measured parvovirus replication and sensitivity to X-ray damage in nine CHO cell lines representing a variety of DNA repair deficiencies. We found that parvovirus replication efficiency increases with radiosensitivity. Parvovirus replication is disrupted at an early stage of infection in DNA repair-proficient cells, before conversion of the single-stranded viral DNA genome into the double-stranded replicative form. Thus, status of the DNA repair machinery inversely correlates with parvovirus replication and is proportional to the host's ability to repair X-ray-induced damage.