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  • Title: Mechanisms of expression of herpes simplex virus-common surface antigens in clonal cells of a herpes simplex virus type 2-transformed line.
    Author: Okazaki K, Ohnishi Y, Yoshida N, Kimura S.
    Journal: J Virol; 1981 May; 38(2):420-9. PubMed ID: 6264119.
    Abstract:
    Rabbit antiserum hyperimmune to herpes simplex virus type 1 was used to study the expression of herpes simplex virus type-common surface antigens (CSA) by indirect immunofluorescence tests in three representative cell clones isolated from a herpes simplex virus type 2-transformed hamster line, 155-4. These three clones showed different phenotypes with respect to CSA expression: (i) a CSA-positive type (clone (155-4-213), in which the antigens increased soon (5 h) after seeding at 37 degrees C, but not after treatment with actinomycin D; (ii) a CSA-inducible type (clone 155-4-03), in which the antigens increased after treatment with actinomycin D (2 micrograms/ml) for 20 h, but not after seeding only; and (iii) a CSA-negative type (clone 155-4-16), in which the antigens did not increase after seeding or after actinomycin D treatment. CSA expression in the CSA-positive type was inhibited by 2-deoxy-D-glucose, but not by puromycin, suggesting that the expression required glycosylation, but not active protein synthesis. CSA expression in this type was insensitive to the protease inhibitors antipain and p-nitrophenyl-p'-guanidinobenzoate. On the other hand, actinomycin D-induced CSA expression in the CSA-inducible type was inhibited by both 2-deoxy-D-glucose and puromycin, suggesting that the induced expression required both glycosylation and protein synthesis. CSA expression induced in this type was sensitive to the two protease inhibitors at concentrations having little effect on overall cellular metabolism or cell viability. These results indicate that CSA expressions in the CSA-positive type and the CSA-inducible type are enhanced by different mechanisms.
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