TY - JOUR TI - Protocol for Isolation, Stimulation and Functional Profiling of Primary and iPSC-derived Human NK Cells AU - Melsen, Janine AU - Themeli, Maria AU - van Ostaijen-ten Dam, Monique AU - van Beelen, Els AU - Lugthart, Gertjan AU - Hoeben, Rob AU - Schilham, Marco AU - Mikkers, Harald VL - 10 IS - 23 PY - 2020 DA - 2020/12/05 SP - e3845 C1 - Bio-protocol 2020;10:e3845 DO - 10.21769/BioProtoc.3845 UR - https://doi.org/10.21769/BioProtoc.3845 AB - Natural killer (NK) cells are innate immune cells, characterized by their cytotoxic capacity, and chemokine and cytokine secretion upon activation. Human NK cells are identified by CD56 expression. Circulating NK cells can be further subdivided into the CD56bright (~10%) and CD56dim NK cell subsets (~90%). NK cell-like cells can also be derived from human induced pluripotent stem cells (iPSC). To study the chemokine and cytokine secretion profile of the distinct heterogenous NK cell subsets, intracellular flow cytometry staining can be performed. However, this assay is challenging when the starting material is limited. Alternatively, NK cell subsets can be enriched, sorted, stimulated, and functionally profiled by measuring secreted effector molecules in the supernatant by Luminex. Here, we provide a rapid and straightforward protocol for the isolation and stimulation of primary NK cells or iPSC-derived NK cell-like cells, and subsequent detection of secreted cytokines and chemokines, which is also applicable for a low number of cells. KW - CD56 KW - Natural killer cells KW - Induced pluripotent stem cells KW - Cytokines KW - Chemokines KW - Peripheral blood KW - Luminex JF - Bio-protocol SN - 2331-8325 PB - Bio-protocol LLC. BIO101 - False