The ANXA7 Knockout HeLa Polyclonal Cells are a CRISPR/Cas9-edited polyclonal knockout cell population engineered to disrupt the ANXA7 gene in the HeLa human cervical adenocarcinoma epithelial cell line. This pooled population provides a genetically heterogeneous loss-of-function model, enabling robust investigation of ANXA7-dependent mechanisms without clonal artifacts. The knockout cells are designed for applications requiring native cellular context, offering a versatile tool for studying tumor suppression, apoptosis, and membrane dynamics in a widely used cancer model.
The host HeLa cell line is derived from a human cervical adenocarcinoma and is positive for human papillomavirus type 18 (HPV-18). These immortalized epithelial cells are a cornerstone of cancer research due to their rapid proliferation, ease of culture, and well-characterized signaling networks. Their tumorigenic origin and HPV-driven transformation make them particularly relevant for dissecting oncogenic pathways and evaluating therapeutic responses in a cervical carcinoma background.
ANXA7 is a Ca2?-dependent phospholipid-binding protein that governs membrane fusion, exocytosis, and apoptotic signaling. Its function is activated by Ca2? influx and modulated via PKC downstream of EGF and Ras signaling. ANXA7 interacts with membranes, Annexin A2, S100A10, the SNARE complex, and actin to promote SNARE-mediated exocytosis and regulate apoptosis effectors such as Bcl-2 and Caspase-3. Disruption of ANXA7 uncouples these interactions, potentially impairing membrane repair and apoptotic execution, thereby contributing to tumorigenesis and drug resistance.
In the HeLa context, ablation of ANXA7 enables systematic dissection of its tumor suppressor functions against the backdrop of HPV-18-driven cervical adenocarcinoma. This model allows researchers to examine how loss of ANXA7 alters Ca2? signaling, exocytotic trafficking, and apoptotic thresholds, while also probing crosstalk with viral oncoproteins. The resultant phenotypes can shed light on mechanisms of apoptosis evasion and enhanced survival that are clinically relevant to cervical cancer progression.
This polyclonal knockout population is suitable for diverse assays including Western blotting and RT-qPCR for expression validation, immunofluorescence for protein localization, flow cytometry (Annexin V/PI) for apoptosis quantification, calcium imaging for signaling dynamics, proliferation assays (MTT, BrdU), migration/invasion studies, co-immunoprecipitation for interacting partners, and drug sensitivity screens. It serves as an essential platform for tumor suppressor research, exocytosis analysis, and calcium pathway investigation. For further information or custom knockout inquiries, please contact Ascent Research.
