ABHD14B Knockout SK-HEP-1 Polyclonal Cells represent a CRISPR/Cas9-mediated polyclonal knockout cell pool designed for functional analysis of the ABHD14B gene. This product is derived from the SK-HEP-1 host cell line and consists of a heterogeneous population of edited cells, enabling robust loss-of-function studies. As a polyclonal population, it circumvents clonal selection bias and provides a versatile tool for interrogating ABHD14B-dependent mitochondrial pathways and apoptotic cascades in a hepatic endothelial context.
The SK-HEP-1 host cell line is a human liver sinusoidal endothelial-like cell line originally isolated from the ascites of a patient with liver adenocarcinoma. It displays a biphenotypic endothelial-epithelial profile, making it a widely used model for hepatic sinusoidal endothelial biology. Its derivation from malignant ascites renders it particularly relevant for investigating hepatocellular carcinoma-associated microenvironments and liver fibrosis. The cells express markers consistent with liver sinusoidal endothelial cells, offering a physiologically relevant backdrop for mitochondrial studies and apoptosis assays.
ABHD14B encodes a mitochondrial protein that suppresses oxidative phosphorylation and promotes intrinsic apoptosis through cytochrome c release. It functions upstream of caspase-9 and caspase-3 activation and is thought to interact with BAX and BAK at the mitochondrial outer membrane, although direct binding partners remain undefined. Upstream regulators are unknown, but ABHD14B may be induced by cellular stress signals. In this knockout model, disruption of ABHD14B is expected to lift respiratory inhibition and block cytochrome c release, conferring resistance to apoptosis.
The ABHD14B knockout in SK-HEP-1 polyclonal cells enables dissection of mitochondrial metabolism and apoptosis in a liver endothelial model. Hepatocellular carcinoma and liver fibrosis are characterized by dysregulated apoptosis and bioenergetics, making this system valuable for studying ABHD14B??s role in cell survival. Loss of ABHD14B may enhance respiration and shift metabolic states, informing how sinusoidal endothelial cells evade apoptosis in the tumor microenvironment. The polyclonal nature captures editing heterogeneity, reflecting physiological diversity.
Researchers can employ these cells in various functional assays. Western blotting verifies ABHD14B knockout, while Seahorse respirometry assesses mitochondrial function. Cytochrome c release ELISA and caspase-3/9 activity assays directly evaluate apoptosis. Flow cytometry (Annexin V/PI) and MTT viability assays further characterize apoptotic resistance and proliferation. These tools enable studies of mitochondrial regulation, apoptosis resistance in liver cancer, hepatic endothelial biology, and screening of mitochondrial dysfunction modulators. For additional information, please contact Ascent Research.
