The HNRNPAB Knockout SK-HEP-1 Polyclonal Cells are a CRISPR/Cas9-edited polyclonal knockout cell population derived from the human hepatocellular carcinoma line SK-HEP-1. This product features targeted disruption of the HNRNPAB gene, which encodes an RNA-binding protein with critical roles in pre-mRNA processing. The polyclonal format represents a heterogeneous pool of cells bearing diverse loss-of-function alleles, providing a robust model for studying gene function without clonal selection bias. The gene-editing approach enables efficient gene disruption in the SK-HEP-1 background, facilitating functional genomics studies in liver cancer research.
The parental SK-HEP-1 cell line originates from the ascites of a patient diagnosed with liver adenocarcinoma and exhibits a unique endothelial-like phenotype. Widely employed as a model for hepatocellular carcinoma and endothelial biology, SK-HEP-1 cells retain characteristic features of malignant liver cells while displaying properties of vascular endothelium. This dual nature makes the line particularly valuable for investigating tumor?Cendothelial interactions, angiogenesis, and metastatic mechanisms. The cells grow as an adherent monolayer and are amenable to standard culture conditions and transfection protocols, ensuring compatibility with a broad range of downstream assays.
HNRNPAB is a core component of heterogeneous nuclear ribonucleoprotein complexes governing mRNA metabolism. Downstream of transcriptional regulation and stress signals, HNRNPAB interacts with spliceosome components and RNA polymerase II, modulating pre-mRNA splicing, mRNA stability, and transport. Post-translational modifications further shape its affinity for target transcripts. Key downstream targets include mRNAs encoding cell cycle regulators and apoptosis factors, placing HNRNPAB at the nexus of gene expression and cell fate. HNRNPAB disruption thus perturbs processing and expression of these transcripts, potentially affecting proliferation and survival.
In hepatocellular carcinoma, HNRNPAB is implicated in progression and metastasis via regulation of oncogenic and tumour?suppressive transcript networks. The SK-HEP-1 line??s combined hepatic and endothelial features offer a platform to examine how HNRNPAB loss affects proliferation, migration, and apoptosis. The polyclonal knockout population provides a broader representation of loss-of-function effects than a single clone, enabling the identification of robust, population-level phenotypes. This model is thus well-suited to exploring the contribution of HNRNPAB to liver cancer pathogenesis and to the interface between tumour cells and the vascular microenvironment.
Researchers can employ the HNRNPAB Knockout SK-HEP-1 Polyclonal Cells in a variety of functional studies. RT-qPCR and RNA sequencing can be used to profile splicing alterations and transcriptome-wide changes resulting from HNRNPAB disruption, while western blotting confirms protein ablation. Proliferation, colony formation, and transwell migration assays reveal phenotypic consequences on growth and invasiveness, and apoptosis assays quantify cell death responses. The cells also serve as a valuable tool for identifying HNRNPAB target genes and for validating chemical or genetic modulators of RNA processing pathways. For additional technical details and ordering assistance, please contact Ascent Research.
