Human Immunodeficiency Virus Type 1 Tat Accelerates Kaposi Sarcoma-Associated Herpesvirus Kaposin A-Mediated Tumorigenesis of Transformed Fibroblasts In Vitro as well as in Nude and Immunocompetent Mice

Abstract excerpt

Kaposi sarcoma-associated herpesvirus (KSHV) is necessary but not sufficient to cause Kaposi sarcoma (KS). Coinfection with human immunodeficiency virus type 1 (HIV-1), in the absence of antiretroviral suppressive therapy, drastically increases the risk of KS. Previously, we identified that HIV-1 transactivative transcription protein (Tat) was an important cofactor that activated lytic cycle replication of KSHV....

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