The KLC1 Knockout HT29 Polyclonal Cells are a CRISPR/Cas9-edited polyclonal knockout cell population with disruption of the KLC1 gene in HT29 colorectal adenocarcinoma cells. This heterogeneous pool of edited alleles provides a robust loss-of-function model for studying kinesin-1 light chain functions in epithelial biology. The knockout disrupts microtubule-dependent transport processes without requiring clonal isolation, enabling population-level assays in oncogenic and polarized cellular contexts.
HT29 cells are a human colorectal adenocarcinoma line carrying a truncating APC mutation, resulting in constitutive Wnt signaling and tumorigenicity. These epithelial cells retain the capacity to polarize and form tight junctions, making them valuable for intestinal biology and cancer research. Their well-characterized signaling landscape facilitates dissection of oncogenic pathways and intracellular trafficking in an epithelial background.
KLC1 encodes the light chain of kinesin-1, which binds cargos and links them to the kinesin heavy chain (KIF5) for microtubule plus-end-directed transport. KLC1 interacts with adaptors including JIP1, JIP3, Milton, and APC, mediating movement of vesicles, mitochondria, and signaling complexes. It is phosphorylated by GSK3?? and operates downstream of JNK kinase, integrating signaling with cargo trafficking. KLC1 knockout impairs mitochondrial distribution, alters APP processing, and modulates JNK signaling, coupling transport to neurodegeneration-related pathways. Its association with APC connects microtubule-based transport to Wnt signaling and cell polarity.
In APC-mutant HT29 cells, KLC1 knockout perturbs intracellular trafficking in a colorectal cancer context, potentially affecting Wnt and JNK pathways through disrupted APC or JIP interactions. This model enables investigation of how kinesin-1-dependent transport influences epithelial cell polarity, migration, and tumorigenicity. The HT29 line??s polarizable nature allows studies of apical-basal transport and barrier function defects arising from KLC1 loss, relevant to understanding colorectal cancer metastasis.
Applications include live-cell imaging of mitochondrial and vesicular motility, scratch wound migration assays, co-immunoprecipitation with KIF5, and phospho-JNK analysis. The polyclonal pool is suited for high-content screening of modulators rescuing transport defects, with relevance to neurodegeneration and oncology. For lot-specific data and custom options, please contact Ascent Research.
