Setting up the JIMT-1 Enhanced Fluorescent Protein (EGFP) Spheroid Model
3:43
Coating the HCS Plate
4:33
Transfer of Spheroids to the HCS Plate
4:46
Pre-treatment of JIMT-1-EGFP Spheroids with Test Compounds
5:14
Induction of Antibody-Dependent Cellular Cytotoxicity (ADCC) by Adding the Effector Cells
7:10
Annexin V-647 Staining of Spheroids
7:34
Imaging
11:43
Representative Results
12:52
Conclusion
Transcript
One of the most effective targeted cancer therapy is based on antibodies such as the anti-HER2 antibody trastuzumab. The anti-cancer action of trastuzumab involves antibody-dependent cell-mediated cytotoxicity, ADCC, by natural killer or NK cells.
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Here, we present a method to identify compounds that modulate the ADCC mechanism, an important cancer cell-killing mechanism of antitumor antibodies. The cytotoxic effect of NK cells is measured in breast cancer cell spheroids in the presence of Trastuzumab. Image analysis identifies live and dead killer and target cells in spheroids.