Bhk-21 Cells
Bhk-21 Cells - Related Videos
11:02
Natural Killer (NK) and CAR-NK Cell Expansion Method using Membrane Bound-IL-21-Modified B Cell Line
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Here, we present a method to expand peripheral blood natural killer (PBNK), NK cells from liver tissues, and chimeric antigen receptor (CAR)-NK cells derived from peripheral blood mononuclear cells (PBMCs) or cord blood (CB). This protocol demonstrates the expansion of NK and CAR-NK cells using 221-mIL-21 feeder cells in addition to the optimized purity of expanded NK cells.
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03:14
Ex Vivo Expansion of Natural Killer Cells from Peripheral Blood Mononuclear Cells
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2025
This video demonstrates a technique for the expansion of natural killer (NK) cells directly from peripheral blood mononuclear cells (PBMCs) using a feeder cell line. PBMCs are co-cultured with genetically modified lymphoblastoid feeder cells expressing membrane-bound interleukin-21 (mIL-21), and the culture is supplemented with the cytokines interleukin-2 (IL-2) and interleukin-15 (IL-15). Together, this cocktail of ligands leads to the prolonged expansion of NK cells with high purity.
FAQs
Attachment to treated culture surfaces provides a stable cellular platform for growth and experimentation. Because BHK-21 cells are adherent, researchers can maintain them as an organized layer while observing proliferation or introducing experimental treatments. This physical growth behavior supports reproducible handling and helps connect changes in cell state with measured biological outcomes.
Transfection gives BHK-21 cells access to introduced genetic material, after which their cellular machinery can express the corresponding genes. This makes the line useful for testing whether a gene-delivery system works and for examining expression in a mammalian cellular context. The resulting signal or product can serve as an experimental readout.
Viral replication in BHK-21 cells creates a controlled cell-based setting for examining virus–host interactions. Researchers can use the culture to study how viral processes relate to host-cell biology, rather than treating the virus as an isolated system. This capability also explains the line’s relevance to virology and vaccine-related research.
A basic experiment begins by growing the adherent cells on treated surfaces in nutrient-supplemented medium. Researchers then introduce genetic material through a transfection system and evaluate gene expression or related cellular responses. Keeping culture conditions consistent is important because the line’s value depends on dependable growth and comparable observations between experimental groups.
For recombinant-protein work, investigators introduce the relevant genetic information into BHK-21 cells and use the cells’ expression machinery to generate the target product. This application links molecular biology with biotechnology: transfection tests delivery and expression, while the resulting recombinant protein supports research or development. The same logic contributes to vaccine-related process development.
The choice of BHK-21 cells is especially useful when a project needs both consistent growth and experimental versatility. A single culture system can support studies of gene expression, viral replication, recombinant-protein production, and vaccine-related processes. In biology, this breadth helps researchers connect cellular mechanisms with practical outcomes across virology, biotechnology, and biomedical research.