PubMed · 13615124
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J TABERNAT. 1958-11-21. [Herpes].. https://pubmed.ncbi.nlm.nih.gov/13615124/
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Kaposi's sarcoma-associated herpesvirus (KSHV) is etiologically associated with several cancers including Kaposi's sarcoma (KS), primary effusion lymphoma, and multicentric Castleman's disease. KSHV-mediated pathogenesis is dependent mainly on KSHV infection as well as on the microenvironment provided by the growth factors (GFs)/inflammatory cytokines (ICs). Recently, we determined that oncoprotein Raf enhances KSHV infection of target cells. Interestingly, Raf regulates the expression of a variety of GFs/ICs including those involved in angiogenesis such as vascular endothelial growth factor (VEGF). In this review, we discuss the effect of the Raf-GF/IC autocrine/paracrine loop on KSHV infection of both hematopoietic and nonhematopietic cells, and associated disease conditions.
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Nasopharyngeal carcinoma is a human malignancy consistently associated with the Epstein-Barr virus. Exposure to non-viral carcinogens and genetic predisposition are other crucial etiologic factors. Tumor development appears to require the expression of a small subset of transforming viral RNAs and proteins with concomitant silencing of most other viral genes. Impairment of the interactions of viral proteins with cellular partners or disruption of viral latency might prove to be useful for novel therapeutic strategies.