The DLGAP5 Knockout HeLa Polyclonal Cells comprise a CRISPR/Cas9-edited polyclonal population derived from HeLa cells, designed to disrupt the DLGAP5 gene. This knockout model provides a loss-of-function system for investigating DLGAP5-dependent processes in mitotic regulation and oncogenesis. The polyclonal format ensures a heterogeneous pool of edited alleles, reflecting the genomic diversity typical of CRISPR-mediated gene disruption without selection of a single clone.
HeLa cells, isolated from a cervical adenocarcinoma of a 31-year-old female, are a foundational model in cancer research owing to their robust proliferation, HPV18 oncogene expression, and ease of genetic manipulation. Their epithelial origin and aneuploid karyotype make them particularly relevant for studying chromosomal instability and mitotic defects. These characteristics provide a physiologically relevant context for evaluating the tumorigenic consequences of DLGAP5 loss in cervical cancer.
DLGAP5 encodes a microtubule-associated spindle assembly factor that is essential for kinetochore fiber formation and faithful chromosome segregation. It is activated through phosphorylation by Aurora A kinase and functions in a complex with TPX2 to promote microtubule stabilization at kinetochores. In this network, DLGAP5 acts downstream of Aurora A and PLK1 signaling, interacting with kinesin-5 (Eg5) and the HURP complex to facilitate chromosome congression. Disruption of DLGAP5 perturbs mitotic progression, leading to chromosome misalignment and activation of the spindle assembly checkpoint.
In HeLa cells, which exhibit inherent chromosomal instability, DLGAP5 knockout provides a powerful tool to dissect mitotic vulnerabilities. Overexpression of DLGAP5 has been reported in cervical, hepatocellular, breast, colorectal, and gastric cancers, often correlating with poor prognosis. Therefore, this polyclonal knockout model enables the study of DLGAP5 as a potential therapeutic target and its role in sustaining aneuploidy in cancer cells. Combined with HeLa??s HPV18 positivity, it offers insights into how viral oncoproteins may intersect with mitotic regulatory networks.
Researchers can employ this knockout model in functional mitotic studies using immunofluorescence microscopy to visualize spindle morphology defects, Western blotting for DLGAP5 and phospho-Aurora A levels, and flow cytometry for cell cycle distribution analysis. It supports colony formation assays to assess clonogenic survival and xenograft tumor growth studies to evaluate tumorigenic potential in vivo. Time-lapse imaging of mitosis can reveal real-time segregation errors. These applications make the DLGAP5 Knockout HeLa Polyclonal Cells an essential resource for target validation in mitotic inhibitor development and cancer biomarker research. For further technical details, please contact Ascent Research.
