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. 1973 Dec;12(6):1442-5.
doi: 10.1128/JVI.12.6.1442-1445.1973.

Effect of dibutyryl cyclic AMP on the induction of Epstein-Barr virus in hybrid cells

J E Zimmerman Jr, R Glaser, F Rapp

Effect of dibutyryl cyclic AMP on the induction of Epstein-Barr virus in hybrid cells

J E Zimmerman Jr et al. J Virol. 1973 Dec.

Abstract

Treatment of Epstein-Barr virus (EBV) negative somatic cell hybrids with 5'-iododeoxyuridine (IUdR) induced synthesis of EBV antigens and virus particles. When dibutyryl cAMP (Bt(2)-cAMP) was present in medium after exposure of cultures to IUdR, the incidence of cells synthesizing EBV early and virus capsid antigens was increased. The time necessary for appearance of EBV particles after induction by IUdR was significantly reduced in the presence of Bt(2)-cAMP. This enhancement was evident to a lesser degree with 3':5' cAMP than with Bt(2)-cAMP and did not occur with any other of the related compounds tested. The response observed was dose dependent. Untreated (no IUdR) EBV negative hybrid cells exposed to Bt(2)-cAMP also synthesized EBV antigens. The concentration of intracellular cAMP may act as one of the control mechanisms selecting for gene expression in this system.

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References

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