The KIF2A Knockout HeLa Polyclonal Cells are a CRISPR/Cas9-edited polyclonal knockout cell population designed for investigating KIF2A function. This product consists of a heterogeneous pool of HeLa cells harboring targeted disruptions in the KIF2A gene, providing a loss-of-function model without clonal selection. The polyclonal format preserves genetic diversity while eliminating wild-type KIF2A expression, enabling robust phenotypic analyses in mitotic and cytoskeletal research.
HeLa cells are a widely used human cervical adenocarcinoma line, originally derived from an HPV-18-positive tumor. Their immortalized nature, rapid doubling time, and characteristic aneuploid karyotype make them a cornerstone of cancer research. Inactivation of the p53 and retinoblastoma (Rb) tumor suppressors contributes to their unchecked proliferation and genomic instability, providing a relevant background for studying mitotic regulators.
KIF2A encodes a kinesin-13 family microtubule depolymerase essential for mitotic spindle assembly and chromosome segregation. The protein localizes to centrosomes and spindle microtubules, where it catalyzes ATP-dependent depolymerization to control microtubule dynamics. Its activity is regulated by Aurora A, Aurora B, Plk1, and CDK1/cyclin B kinases, and it interacts with factors such as KIF18A, MCAK/KIF2C, EB1, MAP1B, and TIP150 to modulate kinetochore?Cmicrotubule attachments and spindle length. KIF2A functions within the mitotic spindle assembly checkpoint and microtubule cytoskeleton organization pathways.
Given HeLa cells’ reliance on precise mitotic control despite their aneuploidy, disruption of KIF2A is expected to induce pronounced spindle defects, aberrant chromosome alignment, and mitotic delay or catastrophe. This sensitization underscores the dependence of chromosomally unstable cancer cells on microtubule-regulating enzymes. Coupled with the loss of G1/S checkpoint integrity via p53 and Rb inactivation, KIF2A knockout HeLa cells provide a powerful system to interrogate the interplay between spindle dynamics and cell cycle progression in a tumor-relevant context.
These polyclonal knockout cells facilitate diverse research applications including cancer biology, cell cycle checkpoint studies, microtubule dynamics research, neuronal migration, and epilepsy investigation. They are compatible with Western blotting for protein level assessment, immunofluorescence staining of ??-tubulin for spindle morphology, and live-cell imaging using SiR-tubulin to monitor real-time mitotic events. Flow cytometry with propidium iodide enables cell cycle distribution analysis, while co-immunoprecipitation identifies KIF2A interaction partners. Additional assays include qRT-PCR for KIF2A transcript levels, scratch wound healing for migration, and paclitaxel sensitivity testing to evaluate chemotherapeutic response. For further information, contact Ascent Research.
