The DSC2 Knockout K-562 Polyclonal Cells are a CRISPR/Cas9-edited polyclonal knockout cell population designed to disrupt the human DSC2 gene in K-562 lymphoblasts. This product delivers a heterogeneous pool of edited cells, enabling robust loss-of-function analysis without the need for single-cell cloning. The polyclonal format is ideal for rapid functional screening and pathway dissection, providing a highly efficient model for studying desmocollin-2-dependent processes.
K-562 cells were originally isolated from a female patient with chronic myeloid leukemia in blast crisis. They grow as suspension cultures with lymphoblast morphology and retain the capacity to undergo differentiation along erythroid, granulocytic, or monocytic pathways upon stimulation. Owing to their well-characterized biology, genetic amenability, and extensive use in cancer and hematopoietic research, K-562 serves as a versatile host for CRISPR-mediated knockout studies, offering a controlled system to examine gene function in a non-adherent, leukemia-derived background.
DSC2 codes for desmocollin-2, a calcium-dependent cadherin essential for desmosome-mediated cell-cell adhesion. It assembles into adhesive complexes with plakoglobin (JUP), plakophilin-2 (PKP2), and desmoplakin (DSP) to link intermediate filaments to the plasma membrane. Upstream regulators include WNT/??-catenin signaling via LEF1/TCF transcription factors and TGF-?? pathways. Knockout of DSC2 disrupts desmosome integrity, impairing adhesion and altering downstream molecules such as JUP and PKP2, thereby affecting cadherin signaling and cytoskeletal dynamics. Collectively, these interactions underpin tissue cohesion and morphogenesis, and their disruption is linked to cardiomyopathies and skin barrier defects.
In the K-562 lymphoblast context, this knockout allows dissection of DSC2 function outside typical epithelial or cardiac tissues. While desmosomal components are not prominently expressed in suspension cells, the clean genetic background of this polyclonal knockout population is well-suited for reconstitution or overexpression experiments. Moreover, it may uncover non-canonical roles of desmocollin-2 in hematopoietic cells, potentially linking desmosomal genes to differentiation programs or leukemia pathogenesis.
Researchers can utilize standard validation assays such as western blotting, RT-qPCR, immunofluorescence, co-immunoprecipitation, and flow cytometry, while RNA-seq enables transcriptome-wide analysis. The model supports studies on desmosomal adhesion, WNT/TGF-?? crosstalk, drug screening for desmosomeopathies, and mechanistic investigations of arrhythmogenic right ventricular cardiomyopathy and palmoplantar keratoderma. For further details or project-specific inquiries, please contact Ascent Research.
