Journal: International Journal of Biological Sciences
Article Title: Targeting QRICH1 suppresses epithelial-mesenchymal transition and tumor growth in liver cancer through the Connexin43/USP1 mediated Snail1 stabilization
doi: 10.7150/ijbs.133080
Figure Lengend Snippet: USP1 dependent regulation of Snail1 ubiquitination and specification of ubiquitin chain linkages. (A) Detection of Snail1 ubiquitination in Huh7 and SK-Hep-1 cells transfected with siQRICH1 and treated with MG132. (B) Assessment of ubiquitinated Snail1 in SNU-449 and HEK293 cells coexpressing the indicated vectors following a 4 h MG132 treatment, using Flag IP and subsequent IB analysis. (C) Determination of Snail1 ubiquitin-chain linkage patterns in HEK293 cells cotransfected with Flag-Snail1, Myc-USP1, and the designated His-Ub variants (WT, K48-only or K63-only). (D) Validation of ubiquitin-linkage in HEK293 cells expressing Flag-Snail1, Myc-USP1, and the indicated His-Ub plasmid (K6, K11, K27, K29, K33).
Article Snippet: The liver cancer cell lines Huh7, SK-Hep-1, HepG2, SNU-449 and human embryonic kidney cell line HEK293 were obtained from the Korean Cell Line Bank (KCLB, Seoul, Korea).
Techniques: Ubiquitin Proteomics, Transfection, Biomarker Discovery, Expressing, Plasmid Preparation