Multiple bacterial macromolecules (DNA, RNA, ribosomal proteins, metabolic enzymes)

This target profile represents a collective group of essential bacterial components, including genomic DNA, various RNA species, ribosomal proteins, and metabolic enzymes, which are simultaneously affected by certain broad-spectrum antimicrobial agents. Drugs like nitrofurantoin act as prodrugs that are reduced by bacterial flavoproteins (nitroreductases) into highly reactive, short-lived electrophilic intermediates [1]. These intermediates exert their bactericidal effect by attacking multiple cellular sites, leading to the simultaneous inhibition of protein synthesis, aerobic energy metabolism, DNA synthesis, and RNA synthesis [2]. Because the drug hits multiple targets at once, the development of bacterial resistance is significantly more difficult compared to drugs that target a single enzyme or receptor [3]. This multi-targeted approach is particularly effective in treating uncomplicated urinary tract infections where high concentrations of the active drug can be achieved in the bladder [4]. However, the reactive nature of the drug intermediates also contributes to potential host toxicities, such as pulmonary and hepatic adverse effects [2].

Other names

Bacterial macromoleculesBacterial cellular componentsMulti-target bacterial sites

Reduction by bacterial enzymes (e.g., nitroreductases) into highly reactive electrophilic intermediates that cause non-specific oxidative damage and covalent binding to DNA, RNA, and proteins.