The EHD2 Knockout K-562 Polyclonal Cells product is a CRISPR/Cas9-edited polyclonal knockout cell population derived from the K-562 host cell line, providing a loss-of-function model for investigating EHD2-dependent processes in a leukemic background. This polyclonal population enables robust disruption of the EHD2 gene via CRISPR/Cas9-mediated gene targeting, offering a versatile tool for studying caveolae-mediated endocytosis, integrin recycling, and cell migration signaling without the need for clonal selection.
The host K-562 cell line is a human chronic myelogenous leukemia (CML) blast crisis lymphoblastoid cell line originally derived from the pleural effusion of a Philadelphia chromosome-positive patient. K-562 cells serve as a well-established suspension model for hematopoietic malignancy, differentiation, and signal transduction research. Their undifferentiated, blast-like phenotype and expression of the BCR-ABL fusion protein make them particularly relevant for dissecting pathways governing leukemic progression and therapeutic resistance.
EHD2 functions as a critical regulator of caveolae stability and endocytic recycling, governing the surface expression and trafficking of membrane receptors, including integrins. At the molecular level, EHD2 localizes to caveolae where it interacts with caveolin-1, EHBP1, actin, and the related EHD family members EHD1 and EHD4. Upstream, EHD2 is regulated by epidermal growth factor (EGF) and integrin engagement through EGFR signaling. Downstream, it modulates key effectors such as Rac1, integrin ??1, focal adhesion kinase (FAK), and Src, thereby coordinating cell adhesion, migration, and focal adhesion dynamics.
In the K-562 context, EHD2 knockout provides unique insights into how caveolae-dependent trafficking influences leukemic cell behavior. Although these cells are typically non-adherent, they retain integrin-mediated signaling machinery, and stimulus-induced adhesion can be studied. Disruption of EHD2 allows researchers to decouple caveolar recycling from downstream Rac1 activation and FAK/Src phosphorylation, clarifying its contribution to anchorage-independent growth, migration, and drug sensitivity in CML.
Typical research applications include analysis of caveolae-dependent trafficking in leukemia cells, functional studies of integrin-mediated adhesion and signaling in hematopoietic models, and investigation of EHD2??s role in cancer cell migration and drug resistance. Compatible assays encompass western blotting, RT-qPCR, flow cytometry, endocytosis/recycling assays, cell adhesion assays, migration assays, integrin surface expression analysis, and apoptosis assays. For additional details or customized support, please contact Ascent Research.
