IFNG and head and neck squamous cell carcinoma: To confirm Mdivi-1-mediated MHC-I upregulation was independent of secreted IFN-γ, we treated primary HNSCC and NSCLC cells with Mdivi-1 (25–50 μM, 72 h) and incubated the cells with an IFN-γ neutralizing antibody (10 μg/mL, 24 h)26.