The DYNLT1 Knockout AGS Polyclonal Cells product provides a CRISPR/Cas9-edited polyclonal knockout cell population in which the DYNLT1 gene has been disrupted, generating a loss-of-function model to investigate cytoplasmic dynein-1 functions. This polyclonal pool offers a genetically heterogeneous background suitable for functional assays that require population-level analysis, avoiding clonal selection artifacts inherent to single-cell-derived clones.
The AGS host cell line is a human gastric epithelial adenocarcinoma cell line originally derived from a 54-year-old female patient. It serves as an established in vitro model for gastric adenocarcinoma, widely used in cancer biology to study signaling pathways, tumor cell proliferation, and metastasis mechanisms.
DYNLT1 encodes Tctex-1, a light chain subunit of the cytoplasmic dynein-1 motor complex, essential for retrograde microtubule-based transport of organelles, vesicles, and signaling components, as well as for mitotic spindle organization. DYNLT1 activity is regulated by upstream kinases FOXM1 and CDK1, and it directly interacts with multiple dynein complex partners, including intermediate chain DYNC1I1, light intermediate chain DYNC1LI1, roadblock light chain DYNLRB1, and the accessory light chain DYNLT3. Furthermore, DYNLT1 associates with dynactin subunit DCTN1 and cargo adaptors such as BICD2, FIP3, and RAB5A, which mediate specific cargo recognition. Downstream of DYNLT1, disruption of dynein function impairs the intracellular trafficking of Wnt/??-catenin pathway components, leading to altered signaling, and compromises spindle assembly checkpoint protein localization, resulting in mitotic defects. Additionally, DYNLT1 knockout inhibits autophagosome-lysosome fusion, connecting it to autophagy regulation. Collectively, these molecular interactions position DYNLT1 at the intersection of cell cycle control, autophagy, and cell migration.
In the context of AGS gastric adenocarcinoma cells, DYNLT1 knockout provides a physiologically relevant model to dissect dynein-dependent processes in gastric cancer. Given DYNLT1??s role in mitotic spindle positioning and retrograde transport, its loss impairs accurate chromosome segregation and disrupts vesicular trafficking, which can affect gastric cancer cell proliferation and survival. Moreover, because dynein-mediated trafficking of signaling factors, including components of the Wnt/??-catenin pathway, is critical for cell migration and invasion, this knockout model is particularly suited for investigating metastatic mechanisms. Additionally, links between dynein dysfunction and ciliopathies suggest potential applications in ciliary dyskinesia research.
Researchers can apply this polyclonal DYNLT1 knockout AGS cell population in a variety of experimental approaches. Standard characterization includes western blotting and RT-qPCR to confirm DYNLT1 disruption and assess downstream gene expression. Immunofluorescence microscopy can visualize dynein complex localization and mitotic spindle morphology. Functional studies may employ live-cell imaging to track organelle transport dynamics, cell proliferation and migration assays to evaluate phenotypic consequences, and co-immunoprecipitation to map protein interaction networks. Phospho-signaling analyses further enable dissection of affected signaling pathways. For additional product details, please contact Ascent Research.
