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Review
. 2009 Dec;102(6):1057-63.
doi: 10.1160/TH09-04-0213.

Endothelial cells in human cytomegalovirus infection: one host cell out of many or a crucial target for virus spread?

Barbara Adler  1 , Christian Sinzger
Affiliations
Review

Endothelial cells in human cytomegalovirus infection: one host cell out of many or a crucial target for virus spread?

Barbara Adler et al. Thromb Haemost. 2009 Dec.

Abstract

Endothelial cells (EC) are assumed to play a central role in the spread of human cytomegalovirus (HCMV) throughout the body. Results from in-situ analyses of infected tissues and data from cell culture systems together strongly suggest that vascular EC can support productive replication of HCMV and thus contribute to its haematogeneous dissemination. By inducing an angiogenic response, HCMV may even promote growth of its own habitat. The particular role of EC is further supported by the fact that entry of HCMV into EC is dependent on a complex of the envelope glycoproteins gH and gL with a set of proteins (UL128-131A) which is dispensable for HCMV entry into most other cell types. These molecular requirements may also be reflected by cell type-dependent differences in entry routes, i.e. endocytosis versus fusion at the plasma membrane. An animal model with trackable murine CMV is now available to clarify the pathogenetic role of EC during haematogeneous dissemination of this virus.

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