Project description:We reported the tumor total gene expression TRAF4-overexpressing castration-resistant xenograft tumors and the control castration-responsive tumors
Project description:TRAF4 is highly expressed in the epithelial bladder cancer cell line, HT1376 and poorly expressed in the mesenchymal cell line, T24. We evaluated the genetic changes in HT1376 upon TRAF4 knockdown using two independent shRNAs targetting TRAF4. The changes were documented with respect to the control cell line transduced with empty vector shRNA plasmid. Also, we over-expressed (myc-tagged) TRAF4 in T24 and evaluated mRNA changes with respect to cell line over-expressing empty vector with a myc-tag.
Project description:Ovarian high-grade serous carcinoma (HGSC) accounts for the majority of deaths caused by epithelial ovarian cancer. The precise molecular changes attributable for the pathogenesis of HGSC are still largely unknown. TRAF4 has been identified to be up-regulated in some cancers. However, the association between TRAF4 and the malignancy of HGSC has not been elucidated before. In this study, we aim to explore the prognostic value and function of TRAF4 in HGSC. The results of immunohistochemistry in 174 cases of HGSC showed that high expression of TRAF4 was significantly associated with a shorter overall survival (p=0.005) and recurrence-free survival (p=0.003) in HGSC. Knock-down of TRAF4 inhibited the malignancy of ovarian cancer cells, and over-expression of TRAF4 increased cell malignancy both in vitro and in vivo. Moreover, mechanism studies demonstrated that TRAF4 promoted cell malignancy by activating YAP pathway in HGSC. In conclusion, TRAF4 could be a prognostic biomarker for HGSC and increase HGSC cell malignancy by activating YAP pathway, which may serve as a potential therapeutic target for HGSC.
Project description:To explore the mechanism underlying the negative regulation of adipogenesis by TRAF4, we performed the LC-MS/MS experiments to identify the proteins that interact with TRAF4 during adipogenic differentiation.
Project description:SOX4 is a critical developmental transcription factor in vertebrates and is required for precise differentiation and proliferation in multiple tissues. In addition, SOX4 is overexpressed in many human malignancies, but the precise role of SOX4 in cancer progression is not well understood. Here we have performed an expression profiling experiment of LNCaP cells either overexpressing SOX4 or GFP to identify SOX4 target genes. Keywords: Gene expression