Angiogenic and HIV-Inhibitory Functions of KSHV-Encoded Chemokines
- 10 October 1997
- journal article
- other
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 278 (5336), 290-294
- https://doi.org/10.1126/science.278.5336.290
Abstract
Unique among known human herpesviruses, Kaposi's sarcoma–associated herpesvirus (KSHV or HHV-8) encodes chemokine-like proteins (vMIP-I and vMIP-II). vMIP-II was shown to block infection of human immunodeficiency virus–type 1 (HIV-1) on a CD4-positive cell line expressing CCR3 and to a lesser extent on one expressing CCR5, whereas both vMIP-I and vMIP-II partially inhibited HIV infection of peripheral blood mononuclear cells. Like eotaxin, vMIP-II activated and chemoattracted human eosinophils by way of CCR3. vMIP-I and vMIP-II, but not cellular MIP-1α or RANTES, were highly angiogenic in the chorioallantoic assay, suggesting a possible pathogenic role in Kaposi's sarcoma.Keywords
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