hIGH THROUGHOUT SCREENING Flashcards
•How do antibiotics work?
Bactericidal vs bacteriostatic
Target cell wall, dna synthesis, protein synthesis, cell membrane
Antibiotic resistance factors
efflux
immunity and bypass
target modifications
inactivativing enzymes
Conjugation
transfer of genetic material between bacterial cells of same or different species by direct cell-to-cell contact.
WHO Priority Pathogens
campylobacter
salmonella species
shigella spp
staphylococcis aureus
Antibacterial drug discovery Main approaches
Target-based design
Whole cell screening
Target-based design
Pick target Design inhibitors screen inhibitor
Ethical Responsibilities
Replacement RefinementReduction
Whole-cell screening –
screen for inhibitors against whole bacterial cells. Advantage: if get activity, know it is active against organism. Disadvantage: if active, don’t know mechanism of action/target