TY - GEN AB - This dissertation identifies novel roles for the insulin-like growth factor (IGF) system and cathepsin B in Kaposi sarcoma–associated herpesvirus (KSHV)-mediated tumorigenesis. Using a physiologically relevant tissue culture model of KSHV-infected endothelial cells and global transcriptional profiling, key components of the IGF system—including IGFBP-1, -2, and -6, the insulin receptor, and the IGF-II receptor—were found to be dysregulated and functionally important in Kaposi sarcoma. Additionally, cathepsin B was shown to regulate tumor invasion, and a previously unrecognized functional link between the IGF-II receptor and cathepsin B was identified as essential for KSHV-driven tumorigenesis. These findings reveal new mechanisms underlying Kaposi sarcoma and suggest potential therapeutic targets. AD - Oregon Health and Science University AU - Rose, Patrick DA - 2007 DO - 10.6083/M4SB43R1 DO - DOI ED - Fruh, Klaus ED - Advisor ED - Mentor ID - 819 KW - Cathepsin B KW - Insulin-Like Growth Factor II KW - Insulin KW - Insulin-Like Growth Factor Binding Protein 1 KW - Carcinogenesis KW - Herpesvirus 8, Human KW - Receptor, IGF Type 2 KW - Sarcoma, Kaposi L1 - https://digitalcollections.ohsu.edu/record/819/files/822_etd.pdf L2 - https://digitalcollections.ohsu.edu/record/819/files/822_etd.pdf L4 - https://digitalcollections.ohsu.edu/record/819/files/822_etd.pdf LK - https://digitalcollections.ohsu.edu/record/819/files/822_etd.pdf N2 - This dissertation identifies novel roles for the insulin-like growth factor (IGF) system and cathepsin B in Kaposi sarcoma–associated herpesvirus (KSHV)-mediated tumorigenesis. Using a physiologically relevant tissue culture model of KSHV-infected endothelial cells and global transcriptional profiling, key components of the IGF system—including IGFBP-1, -2, and -6, the insulin receptor, and the IGF-II receptor—were found to be dysregulated and functionally important in Kaposi sarcoma. Additionally, cathepsin B was shown to regulate tumor invasion, and a previously unrecognized functional link between the IGF-II receptor and cathepsin B was identified as essential for KSHV-driven tumorigenesis. These findings reveal new mechanisms underlying Kaposi sarcoma and suggest potential therapeutic targets. PB - Oregon Health and Science University PY - 2007 T1 - Mechanisms of Kaposi sarcoma-associated herpesvirus induced tumorigenesis TI - Mechanisms of Kaposi sarcoma-associated herpesvirus induced tumorigenesis UR - https://digitalcollections.ohsu.edu/record/819/files/822_etd.pdf Y1 - 2007 ER -