The HMGXB4 Knockout SK-HEP-1 Polyclonal Cells are a CRISPR/Cas9-edited polyclonal knockout cell population derived from the SK-HEP-1 hepatic adenocarcinoma cell line, featuring targeted disruption of the HMGXB4 gene. This product provides a heterogeneous pool of cells with loss-of-function mutations, offering a robust system for functional studies without clonal selection artifacts. The polyclonal format maintains genetic diversity while achieving consistent gene inactivation, rendering it ideal for high-throughput screening and long-term culture experiments.
The host SK-HEP-1 cell line was originally established from the ascitic fluid of a patient with hepatocellular adenocarcinoma and is widely utilized as a model for hepatic tumor biology. These cells display an epithelial morphology and retain hallmark features of their malignant origin, including constitutive activation of oncogenic pathways. SK-HEP-1 cells are extensively used to study liver cancer cell proliferation, migration, invasion, and therapeutic resistance, making them a relevant platform for investigating HMGXB4-dependent processes. The robust growth and genetic tractability of this line facilitate CRISPR-mediated gene knockout and comparative analyses with wild-type controls.
HMGXB4 encodes an HMG-box domain-containing transcription factor that binds DNA and regulates gene expression. It is functionally linked to the canonical Wnt/??-catenin pathway, where it interacts with ??-catenin (CTNNB1) and the TCF/LEF transcription factor TCF7L2. Upstream, Wnt ligands such as WNT3A engage FZD receptors and LRP6 co-receptors, activating DVL to inhibit the AXIN/APC/GSK3B destruction complex, thereby stabilizing ??-catenin. Nuclear ??-catenin partners with TCF7L2 at Wnt-responsive elements, and HMGXB4 is thought to cooperate with this complex to drive transcription of target genes, including CCND1 and MYC. Therefore, loss of HMGXB4 may impair Wnt-dependent transcriptional programs, affecting cell cycle progression and stem cell maintenance.
In SK-HEP-1 hepatocellular carcinoma cells, HMGXB4 knockout serves as a model to dissect the transcription factor??s contribution to Wnt-driven oncogenesis. These cells endogenously express Wnt pathway components and respond to Wnt signals, enabling functional studies of HMGXB4 in ??-catenin-mediated transcription. Disruption of HMGXB4 is expected to attenuate Wnt target gene expression, potentially diminishing colony-forming ability, migration, and proliferation. Thus, this knockout model allows interrogation of HMGXB4 dependency in liver cancer cells and can be used to validate HMGXB4 as a therapeutic target.
Typical applications include Western blotting for HMGXB4 and downstream effectors, RT-qPCR for Wnt target genes such as MYC and CCND1, colony formation assays, and wound healing migration assays. The cells are compatible with luciferase reporter systems like TOP/FOP flash assays and RNA-seq for transcriptomic profiling. These tools facilitate screening for chemical modulators, mapping HMGXB4-dependent gene networks, and studying crosstalk in hepatocellular carcinoma. For further details, experimental support, or to place an order, please contact Ascent Research.
