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. 1978 Apr;26(1):102–109. doi: 10.1128/jvi.26.1.102-109.1978

Herpes simplex virus and human cytomegalovirus replication in WI-38 cells. III. Cytochemical localization of lysosomal enzymes in infected cells.

J D Smith, E de Harven
PMCID: PMC354038  PMID: 206717

Abstract

Cytochemical localization of the lysosomal enzymes acid phosphatase and arylsulfatase in cells infected by herpes simplex virus (HSV) or human cytomegalovirus (CMV) showed the following interactions between viruses and host cell lysosomes: (i) many enveloped progeny viruses were located within cytoplasmic vacuoles containing lysosomal enzyme activity; (ii) naked cytoplasmic capsids appeared to acquire an envelope by budding directly into lysosomes; and (iii) many of the cytoplasmic dense bodies that are characteristic of CMV-infected cells and are thought to represent noninfectious aggregates of CMV structural proteins (I. Sarov and I. Abady, Virology 66:464-473, 1975) also acquired a limiting membrane by budding into lysosomes. Autophagy of other cytoplasmic elements was not observed, suggesting that there is some specificity involved in the association of viral particles and CMV dense bodies with lysosomes. Despite the presence of potentially destructive hydrolases, there was little evidence of significant morphological damage to intralysosomal viruses, and high titers of infectious particles were released into the medium. It would therefore appear that significant levels of HSV and CMV infectivity normally persist even though many progeny particles are directly exposed to lysosomal enzymes.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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