1887

Abstract

Summary

Interaction of [H]-labelled poly(rI).poly(rC) with the cell has been studied in several cell cultures which differ markedly in their sensitivity to the antiviral activity of the polynucleotide (in order of decreasing sensitivity): primary rabbit kidney (PRK) cells, human skin fibroblasts (HSF), mouse embryo fibroblasts (MEF), mouse L-929 cells, rabbit kidney (RK 13) cells, HeLa, BSC-1 and VERO cells.

No significant differences were noted in the amounts of either total or acid-insoluble radioactivity associated with the cell at various times, following exposure of [H]-poly(rI).poly(rC) to these different cell cultures. No significant differences were noted in the fate of cell-bound [H]-poly(rI).poly(rC) in four out of the eight cell cultures tested. However, significant differences were observed in the sensitivity of cell-bound [H]-poly(rI).poly(rC) to extraneous ribonuclease treatment: [H]-poly(rI).poly(rC) bound to the cells that are most sensitive to the antiviral activity of the polynucleotide (PRK, HSF, MEF, L-929, RK 13) appeared to be markedly more accessible to ribonuclease treatment than [H]-poly(rI).poly(rC) bound to cells that are rather insensitive to the antiviral activity of the polynucleotide (HeLa, BSC-1, VERO).

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/content/journal/jgv/10.1099/0022-1317-19-1-113
1973-04-01
2019-11-19
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http://instance.metastore.ingenta.com/content/journal/jgv/10.1099/0022-1317-19-1-113
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