The HINT2 Knockout SK-HEP-1 Polyclonal Cells constitute a CRISPR/Cas9-edited polyclonal knockout population targeting the HINT2 gene in the SK-HEP-1 human liver adenocarcinoma cell line. This loss-of-function model enables functional interrogation of HINT2, a mitochondrial tumor suppressor, without clonal bias. The polyclonal format maintains population diversity while ensuring effective gene disruption, providing a reliable tool for comparative studies with unedited controls.
The SK-HEP-1 cell line, originally isolated from the ascitic fluid of a liver adenocarcinoma patient, displays epithelial characteristics and is extensively used in hepatocellular carcinoma research. Despite its atypical endothelial-like traits, SK-HEP-1 remains a standard model for studying liver cancer cell biology, metastasis, and drug responses due to its robust tumorigenic potential.
HINT2 is a mitochondrial hydrolase that promotes intrinsic apoptosis by interacting with cyclophilin D (PPIF), thereby preventing aberrant MPTP opening and maintaining calcium homeostasis. Under apoptotic stimuli, HINT2 dissociation permits MPTP opening, cytochrome c release, and caspase-9/-3 cascade activation. HINT2 expression is transcriptionally upregulated by p53 and is frequently silenced via promoter methylation in cancers. It also engages with HINT1, BCL2 family members, and mitochondrial membrane components VDAC and ANT, integrating upstream death signals to regulate cell fate.
In SK-HEP-1 cells, HINT2 knockout disrupts mitochondrial apoptosis regulation, mimicking the tumorigenic silencing observed in hepatocellular carcinoma and other malignancies. This model provides a unique system to explore how loss of HINT2-mediated MPTP control and calcium signaling facilitates apoptotic resistance, tumor progression, and chemoresistance, making it highly relevant for translational oncology research.
This knockout product supports diverse applications, including apoptosis pathway analysis, mitochondrial function assays, and drug sensitivity screening. Compatible techniques include Western blotting for cleaved caspases, flow cytometry (Annexin V/PI), mitochondrial membrane potential measurement (JC-1/TMRM), and co-immunoprecipitation of HINT2 complexes. Cytochrome c release, colony formation, and viability assays further enable detailed studies of cell death mechanisms. For inquiries, please contact Ascent Research.
