The NUDT3 Knockout AGS Polyclonal Cells represent a CRISPR/Cas9-edited polyclonal knockout cell population derived from the AGS human gastric adenocarcinoma cell line, engineered to disrupt expression of the NUDT3 gene. This loss-of-function model enables precise interrogation of NUDT3-dependent inositol pyrophosphate signaling without relying on pharmacological inhibition. By generating a heterogeneous pool of edited cells, this product maintains population-level relevance for studying gene function in gastric cancer biology.
The parental AGS cell line was originally isolated from a female patient with gastric adenocarcinoma and serves as a widely employed epithelial model for investigating gastric mucosal biology and tumorigenesis. These cells retain characteristics of gastric adenocarcinoma, including dysregulated proliferative signaling and metabolic adaptation, making them a suitable host for dissecting NUDT3-mediated pathways. The AGS background provides a clinically relevant context for studying the molecular mechanisms underlying gastric cancer progression.
NUDT3 encodes a diphosphoinositol polyphosphate phosphohydrolase that hydrolyzes inositol pyrophosphates, such as diphosphoinositol pentakisphosphate (IP7), thereby reducing intracellular levels of these high-energy signaling molecules. IP7 acts as a metabolic sensor and regulates key cellular processes through direct binding and modulation of downstream effectors. In the AGS context, NUDT3-mediated IP7 hydrolysis can influence the activity of AKT and PDK1, components of the insulin receptor (INSR) signaling axis, as well as intersect with upstream regulators MYC and TP53. The balance of IP7 synthesis by IP6 kinases (IP6K) and PPIP5K, and its turnover by NUDT3, constitutes a critical rheostat for controlling phosphoinositide 3-kinase-dependent signaling and metabolic homeostasis.
Disruption of NUDT3 in AGS polyclonal cells is expected to elevate intracellular IP7 levels, potentially enhancing AKT and PDK1 phosphorylation and promoting downstream proliferative and metabolic reprogramming. This model is particularly valuable for gastric cancer research, where aberrant inositol pyrophosphate metabolism may contribute to oncogenic signaling. By eliminating NUDT3 function, researchers can dissect how IP7-mediated regulation of AKT impacts gastric adenocarcinoma cell proliferation, survival, and migration, and explore crosstalk with the p53 tumor suppressor pathway.
This knockout cell population is ideal for a range of functional studies, including Western blotting for phospho-AKT and total AKT, RT-qPCR validation of NUDT3 disruption, and direct quantification of IP7 and other inositol polyphosphates. Cell-based assays such as proliferation, migration, invasion, and apoptosis analyses, combined with metabolic flux measurements, enable comprehensive phenotypic characterization. The model is also applicable to drug sensitivity screening targeting the IP6K/AKT axis or MYC-driven transcriptional programs. For further technical specifications or customization, please contact Ascent Research.
