The IGF2BP1 Knockout SK-HEP-1 Polyclonal Cells are a CRISPR/Cas9-edited polyclonal knockout cell population derived from the SK-HEP-1 human liver adenocarcinoma cell line, offering a loss-of-function model for studying the RNA-binding protein IGF2BP1. This product features a polyclonal pool of cells with targeted disruption of the IGF2BP1 gene, enabling investigation of its roles in post-transcriptional regulation and oncogenic signaling without the bias of clonal selection. The polyclonal format maintains genetic heterogeneity while providing a robust platform for functional assays, making it suitable for researchers requiring a population-level knockout model rather than a monoclonal cell line.
The host cell line, SK-HEP-1, is a well-characterized human liver adenocarcinoma cell line with a unique mixed epithelial and endothelial phenotype, commonly employed as a model for hepatocellular carcinoma (HCC) and endothelial biology. Originally isolated from the ascites of a patient with liver adenocarcinoma, SK-HEP-1 cells exhibit features of both tumor cells and vascular endothelial cells, allowing the study of tumor-endothelial interactions and metastatic processes. This dual nature makes SK-HEP-1 an ideal background for examining how IGF2BP1 modulates cancer cell behavior and potential endothelial-like functions.
IGF2BP1 is an oncofetal RNA-binding protein that stabilizes and enhances the translation of target mRNAs, including key oncogenic transcripts such as IGF2, MYC, CD44, LEF1, and KRAS. It functions within critical signaling networks, including mTOR signaling, Wnt signaling, and focal adhesion pathways, and is regulated by upstream factors like MYC, ERK/MAPK signaling, and the let-7 microRNA family. IGF2BP1 interacts with molecular partners such as ACTB, EIF4E, CNOT1, ELAVL1, and YBX1 to form ribonucleoprotein complexes that protect mRNAs from degradation and promote their translation, thereby driving cell proliferation, migration, and tumorigenesis.
In the context of SK-HEP-1 liver adenocarcinoma cells, knockout of IGF2BP1 disrupts the stabilization of oncogenic mRNAs, impairing the cell’s ability to sustain proliferative and migratory phenotypes central to HCC progression. The mixed epithelial/endothelial characteristics of SK-HEP-1 allow researchers to explore IGF2BP1’s role not only in tumor cell autonomy but also in processes such as cytoskeletal reorganization via ACTB and cell adhesion through CD44. This model is particularly relevant for dissecting the molecular mechanisms by which IGF2BP1 contributes to hepatocellular carcinoma and its metastatic dissemination.
This polyclonal knockout cell population is ideally suited for a variety of research applications, including cancer biology, RNA metabolism, and metastasis studies. Researchers can employ representative assays such as RT-qPCR and western blotting for gene expression analysis, RNA immunoprecipitation for protein-RNA interaction studies, and mRNA stability assays to measure transcript half-life. Functional evaluation of cell behavior can be performed using migration, invasion, and proliferation assays, while immunofluorescence enables visualization of protein localization within the mixed epithelial/endothelial context. For further details and ordering information, please contact Ascent Research.
