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. 1975 Jun;15(6):1475–1486. doi: 10.1128/jvi.15.6.1475-1486.1975

Presence of herpes simplex virus-related antigens in transformed L cells.

K C Chadha, W Munyon
PMCID: PMC354615  PMID: 167195

Abstract

Antiserum prepared against herpes simplex virus type 1 (HSV-1)-infected L cells, i.e., lytic antiserum, was shown by an indirect immunofluorescence test to stain 90 percent of HSV-transformed L or HeLa cells. Immunofluorescence in these cells was always most intense in the perinuclear cytoplasmic region. Similar results were obtained with antiserum prepared against HSV-transformed L cells. These data indicate that HSV-transformed cells (both L and HeLa) express HSV-related antigens. Antiserum prepared against HSV-1-transformed L cells, i.e., transformed-cell antiserum, was found to agglutinate purified HSV type 1 virions but failed to neutralize infectivity. This suggests that HSV-1 structural antigens are expressed in HSV-1-transformed L cells. Immunodiffusion studies showed that at least two HSV-related antigens could be demonstrated with antigens from HSV-1-transformed L cells and transformed-cell antiserum. These two antigens were shown to be present in all clonal lines of HSV-1-transformed cells examined, six L cell lines and one HeLa cell line. Therefore, we conclude that transformation of cells by HSV-1, which is known to be associated with acquisition of viral thymidine kinase, must also be associated with the presence of these two antigens. We performed experiments showing that there are species of HSV-related antibody in HSV-transformed cell antiserum that could not be absorbed out with antigens from HSV-infected L cells. Antibodies present in lytic antiserum were completely removed by antigen preparations from cells lytically infected with HSV-1. Also, lytic antiserum failed to block HSV-related staining of transformed L cells in a direct immunofluorescence test. These results are compatible with one of two notions: either (i) certain genes are expressed during transformation that are not expressed during lytic infection, or (ii) these genes are expressed to a much more reduced extent during lytic infection than in transformed cells.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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