The GOLGB1 Knockout SK-HEP-1 Polyclonal Cells are a CRISPR/Cas9-edited polyclonal cell population featuring targeted disruption of the GOLGB1 gene within the SK-HEP-1 human hepatic adenocarcinoma host. This knockout model provides researchers with a consistent and biologically relevant tool to investigate the functional consequences of giantin loss in a cancer epithelial context. The polyclonal format preserves a heterogeneous genetic background, circumventing artifacts associated with clonal selection while maintaining robust gene ablation across the culture.
The SK-HEP-1 cell line is an adherent epithelial cell line originally established from the ascitic fluid of a 52-year-old male patient diagnosed with liver adenocarcinoma. It is widely used as a hepatocellular carcinoma model due to its tumorigenic properties and expression of hepatic markers. The cells display typical epithelial morphology and are suitable for studying cell adhesion, migration, invasion, and secretory dynamics.
GOLGB1 encodes giantin, a large Golgi membrane protein integral to cis-Golgi architecture and COPI vesicle tethering. Giantin interacts directly with GM130 (GOLGA2) and p115 (USO1) to facilitate retrograde transport and maintain Golgi ribbon integrity. Its function is regulated by upstream signals, including Src family kinases, protein kinase A, and growth factor signaling, while downstream it influences the organization of GM130 and p115, COPI vesicle trafficking, matrix metalloproteinase (MMP) secretion, and cell surface integrin expression. Key pathway components include COPI coatomer subunits, ARF1, and Rab1, placing giantin at a central node of secretory and endomembrane traffic.
In the SK-HEP-1 hepatocellular carcinoma context, GOLGB1 knockout disrupts Golgi stack organization and impairs polarized secretion, which may attenuate cancer cell migration and invasion. The altered secretory profile??particularly reduced MMP release and integrin trafficking??potentially compromises extracellular matrix remodeling and cell motility. Consequently, this polyclonal knockout model serves as a valuable system for dissecting the contribution of Golgi-mediated trafficking to hepatic tumor progression, metastasis, and drug resistance.
This product is designed for a broad range of experimental applications, including investigations of Golgi morphology via immunofluorescence, quantitative analysis of secretory trafficking with VSVG-GFP reporters, and functional assays such as transwell migration and invasion. Additional uses encompass western blotting for Golgi-associated proteins, ELISA-based measurement of secreted MMPs, cell proliferation assays, and chemosensitivity screening. Researchers can employ these polyclonal knockout cells to interrogate pathways linking Golgi integrity to oncogenic phenotypes. For further details, please contact Ascent Research.
