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Microbiol Immunol. 1997;41(2):121-9.

Alterations in the expression of ELAM-1, ICAM-1 and VCAM-1 after in vitro infection of endothelial cells with a clinical isolate of human cytomegalovirus.

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Department of Biological Sciences, University of Wollongong, New South Wales, Australia.


Human cytomegalovirus (HCMV) infection of endothelial cells resulted in increased adhesion of the cells to peripheral blood leukocytes. It was demonstrated by flow cytometry that increased adhesiveness parallels the increased expression of cell surface adhesion molecules (ELAM-1, ICAM-1, VCAM-1). The increased adhesion of PMN and T-lymphocytes was due to upregulation in the expression of ELAM-1 and ICAM-1. The upregulation of VCAM-1 resulted in the increased adhesiveness of monocytes and T-lymphocytes to HCMV-infected HUVEC. The increased adhesiveness to leukocytes was caused by HCMV replication since endothelial cells exposed to HCMV-free supernatants and UV-inactivated HCMV did not show any increase in adhesiveness to any of the leukocytes tested.

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