The AATK Knockout HeLa Polyclonal Cells are a CRISPR/Cas9-edited polyclonal cell population derived from the HeLa human cervical adenocarcinoma cell line, carrying targeted disruption of the AATK gene. This loss-of-function model enables investigation of AATK??s roles in apoptosis, differentiation, and kinase signaling. The polyclonal format consists of a heterogeneous pool of edited cells that collectively ablate AATK protein expression, minimizing clonal artifacts and preserving genetic diversity for bulk functional studies. Researchers can employ this model to dissect AATK-dependent pathways in a human cancer cell background.
HeLa cells, an immortalized cervical adenocarcinoma line, are a cornerstone of cancer research. They are HPV-18-positive epithelial cells with dysregulated p53 and active telomerase, exhibiting robust proliferation while retaining key intrinsic apoptotic machinery. Their well-characterized genome and ease of transfection make them ideal for CRISPR-mediated knockout. HeLa cells maintain stress-responsive signaling and can undergo apoptosis upon appropriate challenge, providing a relevant model to study AATK??s role in cancer cell survival.
The AATK gene encodes a kinase critical for apoptosis under conditions of cellular stress or growth factor deprivation. AATK activity is triggered by upstream stress signals, converging on the mitochondrial pathway. It interacts with 14-3-3 proteins and signaling adaptors to activate pro-apoptotic BAX, causing cytochrome c release. This leads to caspase-3 (CASP3) activation and cell death, positioning AATK as a switch linking deprivation cues to the core apoptotic machinery.
In HeLa cells, disruption of AATK impairs apoptotic responses to stress signals??such as serum withdrawal or genotoxic damage??enhancing cell survival. This phenotype renders the knockout model a powerful tool for studying apoptosis resistance, a hallmark of cervical carcinoma and other cancers. By comparing wild-type and AATK-null populations, researchers can delineate AATK??s role in cellular homeostasis and evaluate its potential as a therapeutic vulnerability. The inability of AATK knockout cells to properly engage the intrinsic apoptotic pathway provides insights into how tumor cells evade death during oncogenesis.
This polyclonal knockout model supports a broad range of experimental applications, including detailed apoptosis analysis via Annexin V staining, caspase activity assays, and Western blotting for cleaved caspase-3 and cytochrome c release. Cell viability and proliferation assays enable quantification of AATK-dependent survival under stress, facilitating drug sensitivity screening. Kinase activity assays further allow exploration of AATK??s enzymatic properties. These uses make the product valuable for cancer research, neuroblastoma studies, and kinase-targeted drug discovery. For more information or technical support, please contact Ascent Research.
