The DSC2 Knockout Huh-7 Polyclonal Cells are a polyclonal population of Huh-7 cells engineered via CRISPR/Cas9-mediated gene disruption to ablate expression of the DSC2 gene. This knockout model provides a powerful tool for investigating the functional consequences of desmocollin-2 loss in a human hepatocellular carcinoma background, enabling studies of cell adhesion, desmosome biology, and cancer progression.
The Huh-7 host cell line is a well-differentiated hepatocellular carcinoma line derived from a 57-year-old Japanese male. These epithelial liver carcinoma cells retain many hepatocyte features, including expression of liver-specific markers and the capacity for liver-specific functions, making them a widely used model for hepatic biology, drug metabolism, and liver cancer research.
DSC2 encodes desmocollin-2, a calcium-dependent desmosomal cadherin that mediates homophilic cell?Ccell adhesion and desmosome assembly. Desmocollin-2 functionally interacts with plakoglobin (JUP), desmoplakin (DSP), plakophilin-2 (PKP2), and plakophilin-3 (PKP3) to anchor keratin intermediate filaments such as KRT8 and KRT18, maintaining epithelial integrity. Its expression is regulated by upstream factors including TP63, Wnt ligands, TGF-??, SNAI1, and SNAI2. Downstream, DSC2 contributes to the stabilization of ??-catenin and plakoglobin, influencing Wnt/??-catenin signaling. Disruption of DSC2 therefore alters desmosome structure, weakens intercellular adhesion, and can promote epithelial?Cmesenchymal transition (EMT) and migratory behavior.
In the Huh-7 hepatocellular carcinoma context, DSC2 knockout mimics the loss of desmosomal adhesion often observed during cancer progression and metastasis. Hepatocellular carcinoma frequently exhibits dysregulation of adhesion molecules, and DSC2 downregulation correlates with invasive phenotypes. This model allows researchers to dissect how desmosome disassembly contributes to EMT, enhanced motility, and altered signaling through ??-catenin, providing a physiologically relevant system for liver cancer studies.
Applications include the detailed examination of cell adhesion dynamics using cell aggregation and hanging-drop assays; quantification of migration and invasion via Transwell and wound-healing assays; analysis of desmosome protein localization by immunofluorescence; assessment of signaling changes through Western blotting, co-immunoprecipitation, and ??-catenin/TCF reporter assays; and transcriptomic profiling with RNA-seq. This knockout tool is also applicable for modeling aspects of arrhythmogenic right ventricular cardiomyopathy and palmoplantar keratoderma in a hepatic cell system. For further technical information, please contact Ascent Research.
