The ANLN Knockout HeLa Polyclonal Cells are a CRISPR/Cas9-edited polyclonal knockout cell population derived from the HeLa cell line, designed to disrupt the anillin (ANLN) gene. This heterogeneous pool of edited cells provides a robust loss-of-function model, enabling population-level studies of ANLN-dependent processes without clonal artifacts.
HeLa cells are a human cervical adenocarcinoma line immortalized by HPV18, characterized by functional inactivation of p53 and Rb tumor suppressors. They exhibit high proliferation rates and an aneuploid karyotype, making them a foundational system for epithelial cell biology and cancer research. The host cell??s inherent genomic instability and deregulated cell cycle make it particularly suitable for investigating cytokinesis defects, as ANLN knockout may exacerbate multinucleation and polyploidy.
Anillin, encoded by ANLN, is an actin-binding scaffold protein essential for cytokinesis. During anaphase, it is recruited to the equatorial cortex by active RhoA GTPase, where it organizes F-actin and non-muscle myosin II into the contractile ring, promoting furrow ingression. Anillin further stabilizes the cleavage furrow through direct interactions with septins (SEPT2, SEPT6, SEPT7) and coordinates abscission via the centralspindlin complex (Ect2/MgcRacGAP). Its expression is transcriptionally regulated by E2F factors and is responsive to upstream pathways including PI3K/AKT, TGF-??, and Wnt/??-catenin. Downstream, Anillin engages formins such as mDia2 and interacts with the RhoA effector Citron kinase, placing it at a critical node in actomyosin remodeling and mitotic exit.
In the HeLa carcinoma context, ANLN knockout provides a powerful tool to dissect how cytokinesis failure contributes to aneuploidy and tumorigenesis. Given that ANLN is frequently overexpressed in breast, lung, ovarian, and colorectal cancers, its depletion allows researchers to explore loss-of-function effects, synthetic lethal interactions, and the dependency of cancer cells on intact cytokinesis. The interplay between ANLN loss and HPV18-driven cell cycle deregulation further enables studies into multinucleation, genomic evolution, and cell migration.
Typical research applications include time-lapse live-cell imaging to monitor cytokinesis dynamics, immunofluorescence localization of anillin and septins, and flow cytometry-based ploidy analysis. Standard proliferation (MTT, BrdU), cell cycle synchronization, and wound-healing or Transwell assays enable functional assessment of growth and motility. The polyclonal format supports drug screening campaigns targeting the RhoA?Canillin pathway and sensitivity profiling of anti-mitotic compounds. For technical support or product inquiries, please contact Ascent Research.
