Review Article

The Molecular Biology of Soft-Tissue Sarcomas and Current Trends in Therapy

Table 2

HIV and Kaposi Sarcoma. HHV-8 genes activated by HIV-Tat.

HHV-8 genesEffectsOther properties

vGPCR (ORF 74)Constitutively activates GPCR
Promotes synthesis of VEGF
Oncogenic
Angiogenic
vBcI2 (ORF 16)Antiapoptotic activity
Inhibits bax
Oncogenic
vIRF-1 (ORF K9)Interferon regulatory factor homolog
Activates the c-myc oncogene
Antagonizes IFN-mediated antiviral immunity