For cytotoxicity assays, MCF7, L929, or B16Bl6 cells were plated in
black 96‐well tissue culture plates (Nunc) at 1,000 cells/well 24 h before stimulation. After 72 h of stimulation, cell supernatant was removed and cell viability was determined with
CellTiter‐Glo (Promega).
For the cytopathic effect assay, L929 cells were plated in
black 96‐well tissue culture plates (Nunc) at 8 × 10
4 cells/well in DMEM with 2% FCS. The next day, mIFN‐γ or mAFN‐II was added and cells were incubated overnight. EMC virus (ATCC) was added, and 24 h later, cell viability was determined with
CellTiter‐Glo (Promega).
To assay IL‐8 secretion by HUVECs, cells were plated at 2 × 10
4 cells/well in 96‐well plates the day before stimulation. After 24 h of stimulation, supernatant was collected and IL‐8 concentration was determined via Human IL‐8 ELISA MAX kit (BioLegend).
Huyghe L., Van Parys A., Cauwels A., Van Lint S., De Munter S., Bultinck J., Zabeau L., Hostens J., Goethals A., Vanderroost N., Verhee A., Uzé G., Kley N., Peelman F., Vandekerckhove B., Brouckaert P, & Tavernier J. (2020). Safe eradication of large established tumors using neovasculature‐targeted tumor necrosis factor‐based therapies. EMBO Molecular Medicine, 12(2), e11223.