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. 1978 Apr;20(1):173–179. doi: 10.1128/iai.20.1.173-179.1978

Ultrastructural studies on dengue virus infection of human lymphoblasts.

S Sriurairatna, N Bhamarapravati, A R Diwan, S B Halstead
PMCID: PMC421569  PMID: 669791

Abstract

Ultrastructural studies of dengue-2 virus-infected lymphoblastoid Raji cells showed that the virus induced an increase in the size of the rough endoplasmic reticula (RER) and that the replication of the virus was confined to the cisternae of these RER. The proliferating RER formed cytoplasmic inclusions that could be seen by light microscopy. This observation could be used as evidence of a cytopathogenic effect of dengue virus on infected Rajii cells in routine cultures. Accumulation of virions in the infected cells was minimal in comparison with other cell systems, however. Sporadic clusters of mature virions were often seen on the plasma membrane. These extracellular virions were distributed adjacent to the virus-bearing RER and were presumably released virions. Vertical transmission of the virus was evident in mitotic lymphoblasts. The replication pattern of dengue virus in lymphoblastoid cells suggests that efforts should be made to determine whether blast-transformed lymphocytes, numerous in secondary dengue infections, support dengue virus replication in vivo.

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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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