Bacterial fatty acid metabolism in modern antibiotic discovery.
Bacterial fatty acid synthesis is essential for many pathogens and different from the mammalian counterpart. These features make bacterial fatty acid synthesis a desirable target for antibiotic discovery. The structural divergence of the conserved enzymes and the presence of different isozymes catalyzing the same reactions in the pathway make bacterial fatty acid synthesis a narrow spectrum target rather than the traditional broad spectrum target. Furthermore, bacterial fatty acid synthesis inhibitors are single-targeting, rather than multi-targeting like traditional monotherapeutic, broad-spectrum antibiotics. The single-targeting nature of bacterial fatty acid synthesis inhibitors makes overcoming fast-developing, target-based resistance a necessary consideration for antibiotic development. Target-based resistance can be overcome through multi-targeting inhibitors, a cocktail of single-targeting inhibitors, or by making the single targeting inhibitor sufficiently high affinity through a pathogen selective approach such that target-based mutants are still susceptible to therapeutic concentrations of drug. Many of the pathogens requiring new antibiotic treatment options encode for essential bacterial fatty acid synthesis enzymes. This review will evaluate the most promising targets in bacterial fatty acid metabolism for antibiotic therapeutics development and review the potential and challenges in advancing each of these targets to the clinic and circumventing target-based resistance. This article is part of a Special Issue entitled: Bacterial Lipids edited by Russell E. Bishop.
Department of Infectious Diseases, St. Jude Children's Research Hospital, Memphis, TN 38105, USA.
Jiangwei
J
Yao
Department of Infectious Diseases, St. Jude Children's Research Hospital, Memphis, TN 38105, USA. Electronic address: charles.rock@stjude.org.
Charles O
CO
Rock
D000818:Animals; D000900:Anti-Bacterial Agents / Q000737:chemistry / Q000494:pharmacology*; D001419:Bacteria / Q000187:drug effects* / Q000201:enzymology; D001426:Bacterial Proteins / Q000037:antagonists & inhibitors* / Q000737:chemistry / Q000378:metabolism; D055808:Drug Discovery / Q000379:methods*; D024881:Drug Resistance, Bacterial; D004791:Enzyme Inhibitors / Q000737:chemistry / Q000494:pharmacology*; D005227:Fatty Acids / Q000096:biosynthesis* / Q000737:chemistry; D006801:Humans; D050155:Lipogenesis / Q000187:drug effects*; D008958:Models, Molecular; D058990:Molecular Targeted Therapy; D011487:Protein Conformation; D013329:Structure-Activity Relationship
D000900:Anti-Bacterial Agents; D001426:Bacterial Proteins; D004791:Enzyme Inhibitors; D005227:Fatty Acids
Antibiotic discovery; Bacterial fatty acid synthesis; Resistance
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