The ANKS1A Knockout HT29 Polyclonal Cells are a CRISPR/Cas9-edited polyclonal knockout cell population derived from the HT29 colorectal adenocarcinoma cell line, featuring targeted disruption of the ANKS1A gene. This loss-of-function model enables functional studies of ANKS1A-dependent signaling without the artifacts often associated with clonal selection, and the polyclonal format retains the genetic heterogeneity of the parental line, providing a robust population for reproducible phenotypic assays.
HT29 cells are epithelial cells isolated from a primary colon adenocarcinoma of a 44-year-old female. They are widely used as an adherent, polarized model of intestinal epithelium and are extensively characterized for colorectal cancer research. Their well-established signaling networks and growth properties make them an ideal host background for interrogating gene functions relevant to adenocarcinoma biology, including pathways governing proliferation, adhesion, and differentiation.
ANKS1A encodes an adaptor protein that links Eph receptor tyrosine kinases, primarily EPHB2, to focal adhesion kinase (PTK2/FAK) and actin cytoskeletal remodeling. Upon ephrin-B ligand stimulation, ANKS1A recruits PTK2 and paxillin (PXN) to receptor complexes, enabling downstream activation of RAC1, RHOA, MAPK1, and AKT1. ANKS1A also interacts with GRB2 and NCK1, integrating input from integrin and EGF receptors. This scaffolding function coordinates ephrin-B-induced focal adhesion turnover and actin polymerization, thereby regulating directional cell migration. Integrin and EGF receptor cross-talk further modulates ANKS1A-containing complexes, highlighting its central role in converging extracellular signals onto cytoskeletal dynamics.
In HT29 colorectal adenocarcinoma cells, ANKS1A knockout disrupts the ephrin-B/EPHB2 bidirectional signaling axis critical for tumor cell invasion and metastasis. Loss of ANKS1A function impairs focal adhesion dynamics and actin polymerization, altering responses to extracellular matrix cues. Thus, ANKS1A knockout in HT29 cells provides a physiologically relevant system to dissect how adaptor-mediated signal integration contributes to adenocarcinoma phenotypes. By studying the loss of ANKS1A in this model, researchers can identify vulnerabilities in pathways commonly altered in colorectal, gastric, and ovarian adenocarcinomas, offering insights into potential therapeutic targets.
Typical experimental workflows include quantitative analysis of ANKS1A mRNA and protein levels by RT-qPCR and Western blot, visualization of focal adhesion complexes by immunofluorescence staining for phosphorylated FAK and paxillin, and functional evaluation of cell migration using scratch wound assays. Cell adhesion assays and phospho-FAK ELISAs after EphB2 stimulation provide direct readouts of ephrin-B signaling strength. These knockout cells are also valuable for co-culture metastasis models and high-throughput screening of compounds targeting focal adhesion and cytoskeletal pathways. For further information or technical support, please contact Ascent Research.
