The HIP1 Knockout SK-HEP-1 Polyclonal Cells are a CRISPR/Cas9-edited polyclonal knockout cell pool with disruption of the HIP1 gene. Derived from the SK-HEP-1 hepatic adenocarcinoma line, this polyclonal population avoids clonal selection, providing a heterogeneous loss-of-function model for studying HIP1-dependent processes. The polyclonal format is immediately usable for bulk assays without the need for clone isolation, making it ideal for applications such as signaling analysis and functional screens.
SK-HEP-1 is an immortalized human hepatic adenocarcinoma cell line from ascitic fluid, serving as a widely used model for hepatocellular carcinoma research. It retains active MAPK/ERK and PI3K/AKT pathways critical for cancer cell proliferation and survival. The cell line’s epithelial origin and genetic manipulability make it a suitable host for gene editing, offering a relevant background for investigating oncogenic mechanisms in liver cancer.
HIP1 encodes an endocytic adaptor that couples clathrin-coated pits to actin dynamics, facilitating internalization of receptors such as EGFR. Growth factor stimulation and MYC transcriptionally regulate HIP1, while it interacts with clathrin, the AP2 complex, F-actin, and huntingtin. Knockout of HIP1 impairs EGFR endocytosis, leading to altered downstream signaling through MAPK/ERK and PI3K/AKT pathways. Additionally, HIP1 participates in apoptosis regulation, implicating it in survival decisions.
In SK-HEP-1 cells, HIP1 disruption likely perturbs EGFR trafficking and sustained oncogenic signaling. Prolonged MAPK/ERK and PI3K/AKT activation may enhance proliferation or unveil dependencies on these pathways. The model is valuable for exploring the intersection of endocytic deregulation and hepatocellular carcinoma, including studies of drug sensitivity and resistance. As HCC often exhibits aberrant EGFR signaling, this knockout provides a tool to dissect receptor-mediated contributions to tumor biology.
Applications include immunofluorescence-based internalization assays to monitor EGFR trafficking, Western blotting for phospho-ERK and phospho-AKT, and flow cytometric cell cycle and apoptosis analyses. Migration and invasion assays can assess metastatic properties, while co-immunoprecipitation validates altered protein complexes. This polyclonal knockout model supports research in cancer biology, endocytosis, and neurodegeneration. For more information or to discuss experimental design, contact Ascent Research.
