Abstract:
:There is an urgent need to identify new treatments for fungal infections. By combining sub-lethal concentrations of the known antifungals fluconazole, caspofungin, amphotericin B, terbinafine, benomyl, and cyprodinil with ∼3,600 compounds in diverse fungal species, we generated a deep reservoir of chemical-chemical interactions termed the Antifungal Combinations Matrix (ACM). Follow-up susceptibility testing against a fluconazole-resistant isolate of C. albicans unveiled ACM combinations capable of potentiating fluconazole in this clinical strain. We used chemical genetics to elucidate the mode of action of the antimycobacterial drug clofazimine, a compound with unreported antifungal activity that synergized with several antifungals. Clofazimine induces a cell membrane stress for which the Pkc1 signaling pathway is required for tolerance. Additional tests against additional fungal pathogens, including Aspergillus fumigatus, highlighted that clofazimine exhibits efficacy as a combination agent against multiple fungi. Thus, the ACM is a rich reservoir of chemical combinations with therapeutic potential against diverse fungal pathogens.
journal_name
Cell Repjournal_title
Cell reportsauthors
Robbins N,Spitzer M,Yu T,Cerone RP,Averette AK,Bahn YS,Heitman J,Sheppard DC,Tyers M,Wright GDdoi
10.1016/j.celrep.2015.10.018subject
Has Abstractpub_date
2015-11-17 00:00:00pages
1481-1492issue
7issn
2211-1247pii
S2211-1247(15)01172-9journal_volume
13pub_type
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