Inz-1 is an effective and fungal-selective inhibitor of mitochondrial cytochrome bc1 with IC50s of 8.092 and 45.320 μM for yeast and human. Inz-1 reverses Fluconazole or other triazole antifungals’ resistance in the pathogenic fungus Candida albicans.
Inz-1 against Candida and HepG2 respiring growth with IC50 values of 1.655 uM and >32 μM, respectively. Inz-1 (0-16 μM; 24 hours) inhibits the growth of the model yeast S. cerevisiae (strain BY4741) and C. albicans (SC5314) in media containing glucose or glycerol as the sole carbon source, while only mildly slowing growth in glucose. Inz-1 (0-100 μM; 24 hours) shows inhibition of yeast cytochrome B enzymatic activity in a concentration -dependent manner in both wild-type and F90Y mutant mitochondria. It exhibits inhibition of cytochrome bc1 from both S. cerevisiae and C. albicans with IC50 value of 2.5 μM and 8.0 μM, respectively. Inz-1 (0-100 μM; 24 hours) inhibits proliferation under forced respiration conditions only at 32 μM and only mildly at that concentration.