BIN3 Knockout Jurkat Polyclonal Cells are a CRISPR/Cas9-edited polyclonal knockout population of the Jurkat human T cell leukemia line, targeting the BIN3 gene. This polyclonal pool arises from CRISPR/Cas9-mediated gene disruption, creating a heterogeneous knockout model that avoids clonal selection artifacts. It is designed for loss-of-function studies of BIN3 in T cell biology, cancer research, and cytoskeletal dynamics.
Jurkat cells, an immortalized CD4+ T cell line from acute T cell leukemia, grow in suspension and recapitulate key TCR signaling pathways. They serve as a widely used model for leukemia and T cell activation studies. The BIN3 knockout in this context enables dissection of cytoskeleton-dependent processes such as migration, adhesion, and cytokinesis within a T cell environment.
BIN3 encodes a BAR domain-containing protein that links membrane curvature to actin cytoskeletal remodeling. Through direct interaction with DOCK7, BIN3 activates Rac1 GTPase, promoting actin polymerization, lamellipodia formation, and Arp2/3 complex recruitment. This BIN3?CDOCK7?CRac1?CArp2/3 axis drives membrane dynamics essential for cytokinesis, endocytosis, and cell migration. BIN3 expression may be regulated in a cell cycle-dependent manner, although upstream signals remain poorly characterized.
Disruption of BIN3 in Jurkat T cells provides a model for investigating how BAR-domain proteins integrate membrane and cytoskeletal dynamics during T cell morphological changes, including activation, adhesion, and transendothelial migration. Since aberrant migration and cytokinesis contribute to leukemogenesis, this knockout aids in defining BIN3??s role in leukemia biology. The polyclonal nature ensures that observed phenotypes are attributed to gene disruption rather than clonal variation.
Representative experimental approaches include western blotting and RT-qPCR to confirm BIN3 ablation, flow cytometry for cell cycle distribution, transwell migration assays to evaluate chemotaxis, and immunofluorescence microscopy for actin and BIN3 localization. T cell activation can be assessed via CD69 expression, while apoptosis assays probe sensitivity to death stimuli. These applications facilitate research in T cell signaling, cancer invasion, and cytoskeletal regulation. For additional technical information, please contact Ascent Research.
