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  • Title: The binding of poly(rI) - poly(rC) to human fibroblasts and the induction of interferon.
    Author: Johnston MD, Atherton KT, Hutchinson DW, Burke DC.
    Journal: Biochim Biophys Acta; 1976 Jun 02; 435(1):69-75. PubMed ID: 1276202.
    Abstract:
    Human embryonic fibroblasts produce interferon when incubated at 37 degrees C after being treated at 4 degrees C with poly(rI) - poly(rC), either by addition of the double-stranded duplex or by sequential addition of the constitutent single-stranded polynucleotides. Cells which have been incubated with double-stranded poly(rI) - poly(rC) can be prevented from forming interferon by washing the cells with high concentrations of salt, immediately after adsorption of polynucleotides, or by incubation of the cells with single-stranded polynucleotides. The inhibition is probably due to displacement of the inducing molecule from the cell surface. Interferon production by cells treated sequentially with poly(rI) and poly(rC) is not inhibited by either of these treatments and the polynucleotides are not easily displaced from the cell surface.
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