DRC8 Knockout HeLa Polyclonal Cells are a CRISPR/Cas9-edited polyclonal knockout cell population derived from HeLa cells, featuring targeted disruption of the DRC8 gene. This pooled polyclonal format comprises a heterogeneous mixture of cells carrying diverse DRC8 loss-of-function alleles, providing a genetically diverse background that minimizes clonal biases and enhances the robustness of functional studies. The knockout model serves as a versatile tool for dissecting the molecular roles of DRC8 in ciliary biology and related disease mechanisms.
HeLa cells are an immortalized human cervical adenocarcinoma epithelial cell line originally established in 1951 from Henrietta Lacks and are positive for human papillomavirus 18 (HPV18). As one of the most widely used cell models in biomedical research, HeLa cells offer a well-characterized genetic and epigenetic landscape, facilitating reproducible experiments in cell biology, drug screening, and cancer research. While they do not constitutively form cilia, HeLa cells can be induced to generate primary cilia upon serum starvation, making them a valuable system for investigating ciliogenesis and ciliary protein function in a human epithelial context.
DRC8 encodes a structural subunit of the nexin?dynein regulatory complex (N?DRC), an essential macromolecular assembly that coordinates the activity of inner and outer dynein arms to control ciliary beat frequency and waveform. At the molecular level, DRC8 interacts directly with other N?DRC components including CCDC39 and CCDC40, as well as with outer dynein arm subunits such as DNAI1 and DNAH5. Upstream, DRC8 expression is transcriptionally regulated by ciliogenic factors RFX2 and FOXJ1, and its assembly into the N?DRC is facilitated by DNAAF family cytoplasmic preassembly factors. Downstream, loss of DRC8 disrupts N?DRC integrity, leading to uncoupled dynein arm activity, aberrant ciliary beating, and defective mucociliary clearance.
In the HeLa cell background, DRC8 knockout provides a physiologically relevant model to study N?DRC assembly and ciliary motility defects associated with primary ciliary dyskinesia (PCD), Kartagener syndrome, chronic respiratory infections, and infertility. The ability to trigger ciliation in HeLa cells by serum deprivation allows researchers to examine DRC8?dependent ciliogenesis and beat regulation in a human epithelial cancer cell context, bridging fundamental cell biology and disease pathology. This system complements primary cell models and enables genetic manipulation and biochemical studies that are challenging in primary ciliated tissues.
Typical research applications include co?immunoprecipitation and proteomics to map DRC8 interaction networks, immunofluorescence with ciliary markers (e.g., acetylated ???tubulin, ARL13B) post?serum starvation to assess ciliogenesis efficiency, and high?speed video microscopy for quantitative analysis of ciliary beat frequency and waveform. Additionally, this polyclonal knockout population is ideally suited for genetic interaction screens with other ciliary motility genes and for complementation assays to validate DRC8 functional domains. For further details or to discuss custom projects, please contact Ascent Research.
