The ITGA6 Knockout HAP1 Polyclonal Cells represent a CRISPR/Cas9-edited polyclonal knockout cell population designed for loss-of-function studies of the human ITGA6 gene. This product consists of a heterogeneous pool of HAP1 cells carrying disrupted ITGA6 alleles, providing a robust model system to interrogate integrin ??6 function without the need for single-cell clone isolation. The polyclonal format ensures efficient knockout at the population level, minimizing clonal artifacts and enabling reproducible phenotypic analysis in functional genomics applications.
HAP1 is a near-haploid human cell line originally derived from the chronic myeloid leukemia cell line KBM-7. Its haploid karyotype simplifies genetic manipulation and enables high-efficiency CRISPR/Cas9 genome editing, making it an ideal platform for generating knockout models. HAP1 cells retain functional integrin adhesion and signaling pathways, including laminin-dependent adhesion mediated by integrin ??6??1 and ??6??4 heterodimers, providing a physiologically relevant background for studying ITGA6-dependent processes. The near-haploid state also removes diploid allelic variability, ensuring unambiguous genotype-phenotype correlations in loss-of-function studies.
The ITGA6 gene encodes integrin ??6, a transmembrane adhesion receptor that heterodimerizes with integrin ??1 (ITGB1) or ??4 (ITGB4) to bind laminin extracellular matrix proteins. Laminin engagement triggers integrin clustering, leading to activation of focal adhesion kinase (FAK) and Src family kinases, which in turn stimulate downstream PI3K-Akt and MAP kinase pathways. These signaling cascades regulate cytoskeletal reorganization through Rho GTPases, and influence gene expression programs controlling cell migration, survival, and differentiation. In hemidesmosomes, ITGA6/ITGB4 complexes connect laminin to intermediate filaments, maintaining epithelial integrity. Integrin ??6 function is further modulated by growth factors such as TGF-?? and EGF, and transcriptionally regulated by p63 and MYC, integrating external cues with adhesive signaling.
In HAP1 cells, ITGA6 is functionally expressed and mediates adhesion to laminin matrices. CRISPR/Cas9-mediated disruption of ITGA6 in this polyclonal population abrogates laminin-dependent cell attachment and attenuates downstream signaling events, including FAK autophosphorylation at Y397 and Akt activation. This knockout model is particularly valuable for studying cancer cell adhesion and migration, as HAP1 cells recapitulate aspects of leukemic cell behavior. Moreover, the haploid background enables combinatorial gene disruption screens, facilitating identification of synthetic lethal interactions or functional partners in the integrin adhesion network.
Typical applications include integrin-mediated adhesion assays on laminin substrates, real-time cell migration and invasion monitoring, phospho-FAK analysis by western blotting, and flow cytometric quantification of integrin surface expression changes. The polyclonal knockout population is suitable for haploid genetic screens to uncover genes that interact with ITGA6 in focal adhesion dynamics, ECM-receptor interactions, hemidesmosome assembly, and cancer metastasis pathways. In biomedical research, this model supports studies of epidermolysis bullosa with pyloric atresia, congenital nephrotic syndrome, and muscular dystrophy mechanisms, as well as drug target validation and functional genomics approaches. For further inquiries and ordering information, please contact Ascent Research.
