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J Virol. 1979 December; 32(3): 734-740

Alterations in Glycosphingolipid Patterns in a Line of African Green Monkey Kidney Cells Infected with Herpesvirus

Edward W. Schroder and Joseph M. Merrick

¹ Department of Microbiology, State University of New York at Buffalo, Buffalo, New York 14214

ABSTRACT

The major glycosphingolipids (GSLs) of a line of African green monkey kidney cells (BGM) were characterized as glucosylceramide, lactosylceramide, galactosyl-galactosyl-glucosylceramide, and N-acetylgalactosaminyl-galactosyl-galactosyl-glucosylceramide. Neutral GSLs accounted for approximately 80% of the total GSLs isolated. The predominant gangliosides were N-acetylneuraminyl-galactosyl-glucosylceramide, N-acetylgalactosaminyl-N-acetylneuraminyl-galactosyl- glucosylceramide, and galactosyl-N-acetylgalactosaminyl-N-acetylneuraminyl -galactosyl-glucosylceramide. The incorporation of labeled galactose into GSLs was compared in mock-infected and herpes simplex virus type 1-infected BGM cells. Herpes simplex virus type 1 infection resulted in a three- to four-fold increase in galactose incorporation into glucosylceramide and a decrease in galactose incorporation into galactosyl-galactosyl-glucosylceramide and N-acetyl-galactosaminyl-galactosyl-galactosyl-glucosylceramide. The virus-induced alteration in the GSL labeling pattern occurred early in infection, before the release of infectious virus, and was not prevented by the presence of cytosine arabinoside. Treatment of uninfected BGM cells with cycloheximide resulted in alterations in the GSL pattern which were similar to those observed in herpes simplex virus type 1-infected cells. These observations suggest that an early virus function such as inhibition of host cell protein synthesis is responsible for the observed alterations of GSL metabolism. Experiments with a syncytium-producing strain of herpes simplex virus type 1, herpes simplex virus type 2, and pseudorabies virus indicated that other herpes viruses altered GSL metabolism in a manner similar to herpes simplex virus type 1.

Present address: Infectious Disease Unit, Massachusetts General Hospital, Boston, MA 02114.