The BAZ2A Knockout SK-HEP-1 Polyclonal Cells represent a CRISPR/Cas9-edited polyclonal knockout cell population designed to disrupt the BAZ2A gene in the human SK-HEP-1 hepatocellular carcinoma line. This engineered population serves as a loss-of-function model for investigating BAZ2A-dependent epigenetic regulation and chromatin remodeling. The polyclonal format ensures a heterogeneous knockout pool, capturing diverse editing outcomes while maintaining the biological complexity required for robust functional studies. By ablating BAZ2A expression, these cells enable researchers to dissect the molecular consequences of NoRC complex disruption without the confounding effects of single-cell clonal variation.
The host SK-HEP-1 cell line is an established adenocarcinoma-derived model with epithelial morphology and tumorigenic properties. Originating from a liver cancer patient, SK-HEP-1 cells are widely employed in hepatocellular carcinoma research, including studies on metastasis, metabolic reprogramming, and drug response. Their adherent growth and stable karyotype make them suitable for a broad range of molecular and cellular assays. The integration of a BAZ2A knockout into this well-characterized background provides a powerful platform to examine how epigenetic dysregulation contributes to liver cancer phenotypes.
BAZ2A is an epigenetic regulator that forms the nucleolar remodeling complex (NoRC) with the ATP-dependent chromatin remodeler SNF2H (SMARCA5). NoRC mediates heterochromatin formation and silencing of ribosomal RNA genes by recruiting histone deacetylase HDAC1 and DNA methyltransferase DNMT1, as well as engaging with transcription termination factor TTF-I. Upstream, BAZ2A expression is regulated by the oncogene MYC and tumor suppressor p53, linking NoRC function to key growth control pathways. Downstream targets include ribosomal RNA genes and heterochromatic repeat regions, which are epigenetically silenced to maintain nucleolar stability and genome integrity. In the knockout cells, loss of BAZ2A disrupts NoRC assembly, impairing histone deacetylation and DNA methylation at these loci.
In the hepatocellular carcinoma context, BAZ2A knockout provides a model system to explore how loss of NoRC-mediated silencing contributes to nucleolar stress and altered cell growth. Because p53 and MYC signaling are frequently dysregulated in liver cancer, the interplay between these pathways and BAZ2A-dependent chromatin remodeling can be directly assessed. The polyclonal knockout population is particularly useful for studying heterogeneity in epigenetic responses and for validating target engagement in translational research aimed at epigenetic therapies for hepatocellular carcinoma and related metabolic disorders.
This knockout cell product is suitable for applications in cancer epigenetics, gene silencing mechanisms, chromatin biology, and nucleolar stress studies. Researchers can employ downstream functional assays such as ChIP-qPCR to examine histone modifications or DNA methylation at rDNA loci, RNA-seq to profile transcriptomic changes, and co-immunoprecipitation to assess NoRC complex integrity. Additional techniques include western blotting for protein expression, RT-qPCR for specific mRNA quantification, immunofluorescence for nucleolar morphology, and cell proliferation assays to evaluate growth phenotypes. Flow cytometry can also be used to analyze cell cycle alterations. For further information or custom requests, contact Ascent Research.
