This product is a polyclonal knockout cell population derived from the SK-HEP-1 human hepatic adenocarcinoma cell line, engineered via CRISPR/Cas9-mediated disruption of the KTN1 gene. KTN1 encodes kinectin, a kinesin receptor integral to microtubule-dependent organelle transport. The polyclonal nature provides a heterogeneous mixture of edited alleles, facilitating the study of gene function without clonal selection bias. This cell model is designed for researchers investigating the role of kinectin in cellular processes such as organelle distribution, ER dynamics, and cell adhesion.
SK-HEP-1 is a well-characterized cell line originating from the ascitic fluid of a male patient with liver adenocarcinoma. These cells exhibit a unique hybrid phenotype, displaying both mesenchymal and endothelial-like properties, which makes them particularly valuable for studying hepatocellular carcinoma progression and the tumor microenvironment. The cell line is frequently employed in liver angiogenesis research, as it retains characteristics of liver sinusoidal endothelial cells. The availability of a KTN1 knockout in this background enables precise dissection of kinectin-dependent mechanisms in a model that recapitulates key aspects of hepatic malignancy and vascular mimicry.
Kinectin functions as a receptor for kinesin-1 (KIF5B) on the cytoplasmic face of the endoplasmic reticulum, mediating the microtubule-dependent transport of ER tubules and other organelles. KTN1 is regulated by ER stress sensors IRE1 and PERK, as well as Rho family GTPases such as RhoA and Rac1, which influence cytoskeletal dynamics and adhesion signaling. Downstream, KTN1 impacts the spatial organization of the ER, the positioning of lysosomes, and the assembly of cell adhesion complexes. Accordingly, the knockout disrupts normal organelle trafficking and ER stress responses, providing a platform to examine how these defects contribute to hepatocellular carcinoma cell behavior.
In the context of hepatic adenocarcinoma, KTN1-mediated organelle positioning is critical for maintaining cellular homeostasis, migration, and stress adaptation. Disruption of KTN1 in SK-HEP-1 cells is predicted to impair ER distribution and lysosome dynamics, leading to altered ER stress signaling and cell adhesion. Given the mesenchymal and endothelial-like properties of SK-HEP-1, this knockout model is particularly suited for investigating how kinectin deficiency affects metastatic potential and the tumor’s interaction with the hepatic microenvironment. Studies with these polyclonal cells can illuminate the role of microtubule-dependent trafficking in the progression of hepatocellular carcinoma and in the cellular response to therapeutic ER stress.
KTN1 knockout cells are ideal for experimental applications including evaluation of kinectin’s role in ER stress and organelle transport by quantitative PCR of stress markers (CHOP, BiP) and immunofluorescence localization of ER and lysosomal compartments. Researchers can employ Transwell and wound healing migration assays to assess changes in cell motility and metastatic-related phenotypes. Co-immunoprecipitation and live-cell imaging studies permit investigation of kinectin interactions with kinesin-1 and microtubules. For technical support, contact Ascent Research.
