The GNG12 Knockout SK-HEP-1 Polyclonal Cells represent a CRISPR/Cas9-edited polyclonal knockout population targeting the GNG12 gene, which encodes the gamma 12 subunit of heterotrimeric G proteins. This product comprises a heterogeneous pool of SK-HEP-1 cells harboring disruptions at the GNG12 locus, enabling loss-of-function studies without clonal isolation. The polyclonal format retains natural biological variability and is well suited for biochemical, signaling, and phenotypic assays where population-level knockout effects are desired.
The parental SK-HEP-1 cell line was derived from the ascitic fluid of a patient with liver adenocarcinoma and has since been characterized as a liver sinusoidal endothelial cell (LSEC) model. These cells exhibit hallmark endothelial features, including fenestrae formation and scavenger activity, and respond to angiogenic and inflammatory stimuli. SK-HEP-1 provides a relevant in vitro system for investigating hepatic sinusoidal function, tumor angiogenesis, and the microenvironment of hepatocellular carcinoma.
GNG12 is an essential component of the G?¦? dimer that transduces signals from G protein-coupled receptors (GPCRs) to intracellular effectors. In SK-HEP-1 cells, GNG12 associates with G?? subunits like GNB1 and couples to G?? proteins such as GNAQ. Upon receptor activation by ligands including LPA, S1P, and chemokines, the G?¦? complex stimulates PLC-?? and receptor kinases, leading to phosphorylation of ERK1/2 (MAPK3) and AKT (AKT1), activation of Rho GTPases, and regulation of integrin-mediated adhesion. These pathways control critical endothelial functions including proliferation, migration, and survival.
Disruption of GNG12 in this polyclonal population abrogates formation of functional G?¦? dimers, thereby uncoupling GPCR activation from downstream ERK and AKT signaling. The resulting loss of signal transduction impairs GPCR-driven endothelial cell proliferation, migration, and survival, providing a clear loss-of-function model for studying G??12-dependent biology. As SK-HEP-1 cells retain key LSEC characteristics, the knockout phenotype reveals contributions of G??12 to hepatic endothelial pathophysiology without interference from other gamma subunits. This system enables dissection of GNG12-specific roles in LSEC functions such as sinusoidal permeability, angiogenesis, and inflammatory responses, with particular relevance to hepatocellular carcinoma progression.
Researchers can employ the GNG12 Knockout SK-HEP-1 Polyclonal Cells in diverse experimental workflows, including western blotting for phospho-ERK and phospho-AKT, RT-qPCR analysis of downstream gene expression, and transwell migration or invasion assays to assess angiogenic and metastatic behaviors. These cells are particularly valuable for studying GPCR signaling in the liver endothelium, screening compounds that target G?¦?-mediated pathways, and investigating the role of GNG12 in inflammation-associated hepatocellular carcinoma. For additional product details or to inquire about pricing, please contact Ascent Research.
