The ACTC1 Knockout HeLa Polyclonal Cells are a CRISPR/Cas9-edited polyclonal knockout population targeting the ACTC1 gene in HeLa cells. This heterogeneous pool offers a robust loss-of-function model free from clonal selection artifacts, suitable for pooled functional studies of cardiac alpha-actin disruption in a human epithelial context.
HeLa cells are an immortalized human cervical adenocarcinoma epithelial line, extensively utilized in cancer biology, cell signaling, and drug discovery. Their rapid proliferation, high transfection efficiency, and well-characterized genomic landscape make them an ideal host for CRISPR-mediated gene editing and reproducible downstream assays.
ACTC1 encodes alpha-cardiac actin, a core component of sarcomeric thin filaments in cardiac muscle, where it interacts with tropomyosin, the troponin complex, alpha-actinin, cofilin, and profilin to mediate actin filament dynamics and stability. Its transcription is activated by cardiogenic transcription factors including SRF, GATA4, NKX2-5, and MEF2C, downstream of TGF-beta, mechanical stress, and calcium signaling. ACTC1 is integral to sarcomere assembly and links to intercalated disc components such as N-cadherin and connexins, as well as myofibrillar proteins like myosin heavy chain. In the HeLa context, ACTC1 knockout is predicted to alter actin polymerization and cytoskeletal mechanics, potentially inducing compensatory upregulation of other actin isoforms like ACTB and ACTG1.
In this non-muscle epithelial background, ACTC1 knockout provides a unique model to dissect isoform-specific actin functions without the confounding presence of sarcomeric structures. The polyclonal pool allows for the evaluation of heterogeneous gene disruption effects on cellular processes such as adhesion, migration, and proliferation, which are critical in cancer progression. It also facilitates study of how cancer cells compensate for loss of a minor actin isoform, shedding light on cytoskeletal plasticity.
This knockout model is applicable to a variety of functional assays, including immunofluorescence microscopy for actin cytoskeleton visualization, wound healing and migration assays, co-immunoprecipitation of interacting partners, and RNA-seq transcriptome analysis to map gene expression changes. It is suitable for studying compensatory actin isoform responses and for screening small molecules that target actin dynamics. For additional product details, please contact Ascent Research.
