ANO6 Knockout HT29 Polyclonal Cells represent a CRISPR/Cas9-edited polyclonal knockout cell population derived from the HT29 human colorectal adenocarcinoma cell line, designed for targeted disruption of the ANO6 gene. This loss-of-function model utilizes CRISPR/Cas9-mediated gene editing to eliminate functional expression of ANO6, enabling researchers to interrogate the role of this calcium-activated phospholipid scramblase in intestinal epithelial biology and disease contexts. The polyclonal format provides a genetically heterogeneous pool of edited cells, avoiding clonal artifacts while maintaining robust knockout efficiency for population-based analyses. This product is ideally suited for acute and chronic studies of ANO6-dependent processes, including phosphatidylserine dynamics, coagulation factor assembly, and tumor-relevant signaling pathways, without the need for single-cell isolation.
HT29 cells, originating from a human colon adenocarcinoma, exhibit an epithelial morphology and are widely employed as an in vitro model of the intestinal epithelium. This cell line is extensively characterized for studies of colorectal cancer progression, absorptive and secretory functions, and cellular responses to therapeutic agents. The colorectal origin of HT29 makes it particularly relevant for investigating ANO6 in the context of colon tumorigenesis, where aberrant scramblase activity has been implicated in tumor cell migration, invasion, and immune evasion. The epithelial nature of these cells also allows exploration of ANO6??s contribution to barrier integrity, apoptosis-induced cell surface changes, and interactions with the microenvironment, establishing a physiologically meaningful platform for functional genomics.
ANO6 encodes a dual-function protein that acts as a calcium-activated phospholipid scramblase and a nonselective ion channel. Its primary role is to externalize phosphatidylserine to the outer leaflet of the plasma membrane in response to elevated intracellular calcium, a process triggered by calcium influx via STIM/ORAI pathways, GPCR agonists, ionomycin, or during apoptosis by caspases. Externalized phosphatidylserine serves as a critical scaffold for the assembly of tenase and prothrombinase complexes, thereby linking ANO6 to the blood coagulation cascade. Beyond coagulation, ANO6-mediated phosphatidylserine exposure promotes cell fusion, microvesicle release, and exosome secretion. The scramblase interacts with Annexin A5, S100A10, coagulation factor VIII, and the actin cytoskeleton, and functions as a homodimer. Downstream, it facilitates signaling for phagocytosis and influences actin remodeling, positioning ANO6 at the nexus of lipid dynamics and cellular communication.
In the HT29 cellular context, disruption of ANO6 provides a powerful tool to dissect the contributions of phosphatidylserine externalization to colorectal cancer pathology. Studies have suggested that ANO6-dependent scramblase activity modulates tumor cell invasiveness and chemoresistance by altering membrane lipid asymmetry and affecting exosome-dependent paracrine signaling. This knockout model allows direct investigation of how loss of ANO6 impacts hallmarks of colon cancer, including migration, adhesion, and immune cell recognition through phosphatidylserine-mediated ??eat-me?? signals. Additionally, the blockade of calcium-stimulated ion conductance and scramblase function can be assessed in relation to epithelial homeostasis, making the model valuable for exploring novel therapeutic targets within the calcium signaling?Cphospholipid scrambling axis.
Researchers can utilize ANO6 Knockout HT29 Polyclonal Cells in a broad repertoire of functional assays. Calcium-induced scramblase activity can be measured using Annexin V flow cytometry to quantify phosphatidylserine externalization, while prothrombinase assays reveal functional consequences on coagulation. For cancer biology applications, cell migration and invasion assays using Boyden chambers or scratch wounds can assess the role of ANO6 in motility. Apoptosis studies employing caspase activation markers and exosome isolation protocols further extend the utility of this model to drug response and intercellular communication research. We invite inquiries about custom applications and welcome users to contact Ascent Research to explore how this knockout population can advance your experimental goals.
