K562 Cell Line
K562 Cell Line - Related Videos
04:41
Killing K562 Cells by Peripheral Blood Mononuclear Cells Exposed to Tobacco Product Preparations
0 Views •
2025
In this video, we study the effect of a whole smoke-conditioned medium, a combustible tobacco product preparation, on K562 cell killing by effector peripheral blood mononuclear cells.
09:56
Epigenetic Engineering of K562 Cells: Dual-Vector Episomal Strategy for Stable Targeted DNA Methylation using dCas9-DNMT3A and -HDAC1 Fusion Proteins
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2025
This protocol describes a non-integrative, episomal CRISPR/dCas9-based system for targeted epigenetic editing in K562 cells, combining dCas9-DNMT3A and dCas9-HDAC1 effectors with specific sgRNAs to induce locus-specific DNA methylation with precision and reduced off-target effects.
10:33
Assessing Cell Viability and Death in 3D Spheroid Cultures of Cancer Cells
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Cited by 34 •
2019
Here, we present several simple methods for evaluating viability and death in 3D cancer cell spheroids, which mimic the physico-chemical gradients of in vivo tumors much better than the 2D culture. The spheroid model, therefore, allows evaluation of the cancer drug efficacy with improved translation to in vivo conditions.
08:17
Flow Cytometry-based Assay for the Monitoring of NK Cell Functions
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Cited by 12 •
2016
A simple and reliable method is described here to analyze a set of NK cell functions such as degranulation, cytokine and chemokine production within different NK cell subsets.
05:27
An In Vitro Assay to Study the Cytotoxic Capability of Cytokine-Induced Killer Cells
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2025
This video demonstrates an in vitro technique to measure the cytotoxic ability of cytokine-induced killer (CIK) cells against cancer cells. Upon co-culturing target cancer cells with CIK cells, the dead cancer cells are identified using a fluorescent viability dye and are quantified using flow cytometry, estimating the cytotoxic effect of CIK cells.
FAQs
The reduced surface display of MHC class I molecules is central to K562 sensitivity in natural killer cell assays. When NK cells encounter these targets, their cytotoxic response can be examined under controlled conditions, allowing investigators to compare how strongly different immune contexts or treatments promote target-cell killing.
The BCR-ABL1 tyrosine kinase remains constitutively active, driving abnormal proliferation in this model. That signaling background is important because immune-response experiments use a biologically defined leukemia target rather than an unspecified blood-cell population. It helps frame cytotoxicity or treatment results against the cellular context being investigated.
The same target platform supports distinct assay formats. In direct natural killer cell cytotoxicity assays, target killing reflects NK-mediated activity. In antibody-dependent cellular cytotoxicity studies, investigators evaluate responses in an antibody-dependent setting. Using K562 cells across both formats creates a common target framework for comparing the cytotoxic mechanisms under investigation.
A typical experimental workflow uses K562 cells as the standardized target component while investigators examine immune-cell cytotoxicity or treatment effects. Keeping the target model consistent supports controlled comparisons across conditions, including different immune contexts or immune-modulating treatments. The resulting readout is interpreted as evidence about target-cell killing and the mechanisms being tested.
K562 cells are particularly useful when the question centers on whether an immune-modulating treatment changes cytotoxic activity against a leukemia-associated target. Researchers can compare treatment conditions using the same target system, helping distinguish altered immune killing from differences caused by changing target models. This makes the line relevant to evaluations of host-defense responses.
In infection-related immunology, K562 assays provide a controlled way to examine cytotoxic mechanisms that contribute to host defense. Although the target is a leukemia model, its standardized behavior in natural killer cell assays allows investigators to compare immune responses across experimental conditions. This supports studies of how immune activity is measured, modulated, and interpreted.