The KIF21A knockout SK-HEP-1 polyclonal cells are a CRISPR/Cas9-edited polyclonal knockout cell population generated to disrupt the KIF21A gene. This human polyclonal knockout model provides a heterogeneous mixture of cells with diverse editing events, enabling robust functional studies without the limitations of single-clone selection. The SK-HEP-1 host cell line, derived from a liver adenocarcinoma ascites sample, maintains adherent epithelial morphology and retains key characteristics of endothelial-like and hepatic tumor cells. The polyclonal format minimizes clonal artifacts and is suitable for pooled functional assays.
The SK-HEP-1 cell line, derived from the ascites of a liver adenocarcinoma patient, is an adherent epithelial model widely used in liver cancer and endothelial-like cell studies. It supports assays for tumor cell migration, invasion, and angiogenesis, and its integration with KIF21A knockout enables investigation of motor protein contributions to cytoskeletal dynamics and intracellular trafficking.
KIF21A encodes a kinesin motor protein that transports intracellular cargo along microtubules via ATP hydrolysis. It is critical for axonal transport, mitotic spindle positioning, and organelle distribution. KIF21A interacts with microtubules and adaptors TRAK1, TRAK2, KLC1, and KLC2 to move mitochondria and vesicles, and its activity is regulated by CDK1 and motor adaptor proteins. In axon guidance, it functions with TUBB3, STRA6, and ROBO3. Knockout of KIF21A in SK-HEP-1 is expected to impair microtubule-based transport, affecting organelle localization and mitotic spindle orientation.
In the SK-HEP-1 liver adenocarcinoma model, KIF21A loss enables dissection of microtubule motor contributions to cancer cell proliferation, migration, and drug resistance. Disrupted organelle positioning may impact cell cycle progression and motility. Although KIF21A mutations cause CFEOM1 and neurodevelopmental disorders, this non-neural model provides a complementary system to study conserved motor-dependent mechanisms. The polyclonal population allows assessment of phenotypic heterogeneity without clonal adaptation artifacts.
This polyclonal knockout cell population is ideal for studying KIF21A-dependent mechanisms in liver cancer cells, including its role in microtubule-mediated vesicle and mitochondrial transport via live-cell imaging. It supports drug screening for kinesin inhibitors using motility and proliferation assays. Researchers can verify KIF21A disruption by Western blotting, assess organelle distribution by immunofluorescence, and analyze cell migration with scratch wound assays. Co-immunoprecipitation can map altered motor?Ccargo interactions. For technical inquiries, contact Ascent Research.
