The HINT3 Knockout SK-HEP-1 Polyclonal Cells product provides a CRISPR/Cas9-edited polyclonal cell population derived from the SK-HEP-1 human hepatocellular carcinoma cell line, engineered to disrupt the HINT3 gene. This polyclonal knockout model introduces a heterogeneous loss-of-function background suitable for pooled and population-based studies of gene function, minimizing clonal artifacts while maintaining reliable disruption of the target locus. The polyclonal format is ideal for researchers requiring robust knockout effects across a genetically diverse cell pool, enabling robust comparison to wild-type controls in functional assays.
The host SK-HEP-1 cell line originates from the ascites of a patient with adenocarcinoma and is widely employed as a hepatocellular carcinoma model with endothelial characteristics. Its unique phenotypic features make it a valuable tool for investigating liver cancer biology, including tumor metabolism, apoptosis, and signal transduction. The cell line??s established use in oncology research supports the discovery of molecular mechanisms relevant to hepatic carcinogenesis.
HINT3 encodes a mitochondrial phosphoramidase that hydrolyzes acyl-AMP and phosphoramidate substrates, thereby regulating adenine nucleotide pools and downstream AMPK signaling. The enzyme functions as a critical node in mitochondrial nucleotide metabolism, linking to the intrinsic apoptosis pathway through modulation of Bax/Bcl-2 balance and caspase-3 activation. Under conditions of oxidative stress or NRF2 pathway induction, HINT3 activity influences cytochrome c release and apoptosome formation, integrating metabolic stress with cell death decisions. Interaction with mitochondrial protein complexes and adenine nucleotides positions HINT3 as a key regulator of energy homeostasis and apoptotic threshold.
In the context of SK-HEP-1 hepatocellular carcinoma cells, disruption of HINT3 by CRISPR/Cas9 is expected to perturb mitochondrial phosphoramidase activity, leading to altered AMPK signaling and shifts in the Bax/Bcl-2 ratio. This can sensitize or desensitize cells to apoptotic stimuli, providing a powerful model to dissect how mitochondrial nucleotide metabolism impacts liver cancer cell survival. The knockout system enables examination of metabolic reprogramming mechanisms that are frequently dysregulated in hepatocellular carcinoma, offering insights into potential therapeutic vulnerabilities.
Researchers can employ this polyclonal knockout model to explore mitochondrial functionality, apoptosis regulation, and energy metabolism in liver cancer. Typical applications include western blotting for cleaved caspase-3, PARP, Bax, and Bcl-2 to assess apoptosis, JC-1 staining to monitor mitochondrial membrane potential, ATP level measurements, and Annexin V/PI flow cytometry for cell death quantification. RT-qPCR confirms HINT3 disruption, while cell viability assays (MTT/CCK-8) and mitochondrial enzyme activity measurements further characterize metabolic outcomes. For further details and ordering information, please contact Ascent Research.
