Replication of simian virus 40 DNA in normal human fibroblasts and in fibroblasts from xeroderma pigmentosum

H. L. Ozer, M. L. Slater, James Dermody, M. Mandel

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

Simian virus 40 infection of semipermissive human diploid fibroblasts (HG), at early passage in cell culture, was compared with that of permissive established monkey cell lines. Viral DNA can be readily detected at 24 to 48 h postinfection at 37°C with a high multiplicity of infection, approaching 10% of that of monkey cells (TC7). The length of time necessary for replication of an average molecule of viral DNA was found to be indistinguishable in HF and TC7 cells. Strand elongation plus termination was assessed by following the accumulation of DNA I at 40°C from replicative intermediates of tsA30 prelabeled at 33°C, obviating isotope pool problems. Combined initiation and elongation of wild-type viral DNA was measured by density shift experiments involving a 5-bromodeoxyuridine chase of prelabeled [3H]thymidine-labeled viral DNA. Determination of accumulation of viral T and V antigens supports the conclusion that the most likely basis for the reduced virus yield in HF cells results from the inefficiency of an early stage in virus infection, before or during uncoating. Similar results were obtained in fibroblasts derived from patients with xeroderma pigmentosum, suggesting that enzymes of UV repair are not required in unirradiated simian virus 40 DNA synthesis.

Original languageEnglish (US)
Pages (from-to)481-489
Number of pages9
JournalJournal of virology
Volume39
Issue number2
StatePublished - Jan 1 1981

Fingerprint

Simian virus 40
Xeroderma Pigmentosum
Viral DNA
fibroblasts
Fibroblasts
DNA
Virus Diseases
Haplorhini
monkeys
Viral Tumor Antigens
Bromodeoxyuridine
Diploidy
Isotopes
infection
Thymidine
viruses
Cell Culture Techniques
cells
thymidine
Viruses

All Science Journal Classification (ASJC) codes

  • Microbiology
  • Immunology
  • Insect Science
  • Virology

Cite this

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title = "Replication of simian virus 40 DNA in normal human fibroblasts and in fibroblasts from xeroderma pigmentosum",
abstract = "Simian virus 40 infection of semipermissive human diploid fibroblasts (HG), at early passage in cell culture, was compared with that of permissive established monkey cell lines. Viral DNA can be readily detected at 24 to 48 h postinfection at 37°C with a high multiplicity of infection, approaching 10{\%} of that of monkey cells (TC7). The length of time necessary for replication of an average molecule of viral DNA was found to be indistinguishable in HF and TC7 cells. Strand elongation plus termination was assessed by following the accumulation of DNA I at 40°C from replicative intermediates of tsA30 prelabeled at 33°C, obviating isotope pool problems. Combined initiation and elongation of wild-type viral DNA was measured by density shift experiments involving a 5-bromodeoxyuridine chase of prelabeled [3H]thymidine-labeled viral DNA. Determination of accumulation of viral T and V antigens supports the conclusion that the most likely basis for the reduced virus yield in HF cells results from the inefficiency of an early stage in virus infection, before or during uncoating. Similar results were obtained in fibroblasts derived from patients with xeroderma pigmentosum, suggesting that enzymes of UV repair are not required in unirradiated simian virus 40 DNA synthesis.",
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Replication of simian virus 40 DNA in normal human fibroblasts and in fibroblasts from xeroderma pigmentosum. / Ozer, H. L.; Slater, M. L.; Dermody, James; Mandel, M.

In: Journal of virology, Vol. 39, No. 2, 01.01.1981, p. 481-489.

Research output: Contribution to journalArticle

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