The ARPC2 Knockout HeLa Polyclonal Cells are a polyclonal population of HeLa cells carrying CRISPR/Cas9-mediated disruptions in the ARPC2 gene. This knockout model provides a loss-of-function pool for studying Arp2/3 complex-dependent processes, avoiding the limitations of clonal selection and better reflecting biological variability in actin dynamics research.
The HeLa host cell line is an HPV18-positive cervical adenocarcinoma-derived immortalized epithelial line, extensively used in cancer and cell motility studies. HeLa cells offer robust proliferation, well-characterized migration and invasion behavior, and suitability for high-resolution imaging of the actin cytoskeleton. Their stable karyotype and extensive literature background provide a reliable context for interpreting gene-editing outcomes.
ARPC2 is a non-catalytic subunit of the Arp2/3 complex, essential for nucleating branched actin filaments. Upon activation by NPFs WASP and N-WASP (encoded by WAS/WASL) and the WAVE complex downstream of Rho GTPases Cdc42 and Rac1 and PI3K signaling, ARPC2-containing Arp2/3 binds pre-existing filaments to generate lamellipodial protrusions, driving migration, endocytosis, phagocytosis, and focal adhesion dynamics. The complex interacts with cortactin, actin monomers, and ARPC subunits (ARPC1A/1B, ARPC3, ARPC4, ARPC5) to stabilize branched networks required for force generation and membrane remodeling.
ARPC2 knockout in HeLa cells directly impairs actin-based motility, given the line??s inherent migratory and invasive properties. Since dysregulated Arp2/3 function drives metastatic progression in cervical carcinoma, this model enables dissection of ARPC2??s contribution to cancer cell dissemination. It also serves as a system for studying actinopathies like Wiskott-Aldrich syndrome, where the WASP-Arp2/3 axis is deficient. The polyclonal knockout provides a physiologically relevant loss-of-function context for investigating ARPC2-dependent versus independent actin regulation.
The ARPC2 Knockout HeLa Polyclonal Cells are well-suited for wound healing and Transwell migration/invasion assays, complemented by phalloidin staining for F-actin. Live-cell imaging of lamellipodia and TIRF microscopy of focal adhesions are facilitated by the loss of Arp2/3 function. Knockout status can be confirmed by RT-qPCR and western blotting of Arp2/3 subunits, while co-immunoprecipitation assesses complex integrity. The cells further support drug discovery targeting actin regulators by providing a null background for compound testing. For additional information, please contact Ascent Research.
