PF-1163B is an antifungal agent form Penicillium sp. II. PF-1163B inhibits ergosterol (ERG) synthesis with IC50 value of 34 ng ml. PF-1163B showed potent growth inhibitory activity against pathogenic fungal strain Candida albicans but did not show cytotox
PF-1163A, a depsipeptide antifungal compound isolated from Penicillium, blocks ergosterol synthesis with an IC50 of 12 ng/ml. This compound specifically inhibits the enzyme ERG25p, a C-4 methyl oxidase in the ergosterol biosynthetic pathway, leading to its antifungal activity. Notably, in Saccharomyces cerevisiae modified to express ERG biosynthesis genes, PF-1163A exhibits an inhibition concentration (MIC value) of 12.5 µg/ml against ERG25p, though strains overexpressing ERG25p show resistance. Additionally, PF-1163A effectively suppresses the growth of Candida albicans (MIC = 8 µg/ml), without affecting other Candida species, Aspergillus fumigatus, or HepG2 cells. Remarkably, it enhances the efficacy of fluconazole against azole-resistant C. albicans strains, showing a significant decrease in MICs (1 and 0.0078 µg/ml alone and in combination, respectively). PF-1163A distinguishes itself from PF-1163B by its more polar nature.
SF1126 is a relevant pan and dual first-in-class PI3K BRD4 inhibitor. SF1126 is an RGDS-conjugated LY294002 prodrug, which is designed to exhibit increased solubility and bind to specific integrins within the tumor compartment.
Fructo-oligosaccharide DP12 GF11 is a member of fructooligosaccharides (FOS) characterized by a degree of polymerization (DP) of 12. FOS compounds consist of 11 fructose units connected by (2→1)-β-glycosidic bonds, with a lone D-glucosyl unit located at the non-reducing end.