Antifungals Flashcards
Anti fungal drugs target
Fungal specific processes/structurs
The fungal CW has
Skeletal and matrix components
Skeletal CW components
Glucan
Chitin
Current anti fungals that target cell wall are
Inhibitors of b1-3 glucan biosynthesis
What is the target for the currently used anti fungals
Pm
Pm in fungal cells contain
Ergosterol (without this fungal cells will not survive)
Those of human cells contain cholesterol
Echinocandins
Caspofungin
Micafungin
Inhibit the enzyme b1-3 glucan synthetase
Block synthesis of b1,3 glucan
Drugs are fungicidal
Polyene anti fungals
Amphotericin b
Nystatin
Bind to resident Ergosterol
Prolong use = kidney failure
Mycoses
Disease caused by fungi
Azoles anti fungal
Imiadzoles
Triazoles
Inhibit enzyme lanosterol c-14
Blocks Ergosterol
Allylamines
Teraiafine
Amorolfine
Inhibit earlier step Azoles
Flucytosine
DNA RNA synthesis
Used with Azoles
Fungal cell turn into 5-fu which inhibits NA synthesis