Broad microbial targets

Broad microbial targets is a collective designation for a variety of molecular structures and biochemical pathways that are highly conserved across multiple classes of microorganisms, including bacteria, fungi, and viruses (StatPearls, 2023). These targets are the focus of broad-spectrum antimicrobial agents, which are essential for treating empirical infections where the specific pathogen has not yet been identified (PubMed, PMC7120468). Examples of such targets include the bacterial 30S and 50S ribosomal subunits, DNA gyrase, and enzymes involved in cell wall synthesis like penicillin-binding proteins (NIH, 2021). Because these targets are present in a wide range of species, drugs acting upon them can provide rapid therapeutic coverage but often lead to the unintended destruction of the host's beneficial commensal microbiota (Nature Reviews Microbiology, 2017). This disruption can result in clinical complications such as dysbiosis and secondary infections like Clostridioides difficile (CDC, 2022). Furthermore, the extensive use of therapies directed at broad microbial targets is a significant driver of global antimicrobial resistance, as it exerts selective pressure on a vast array of microbial populations (WHO, 2021). Consequently, while clinically useful, the term refers to a functional category rather than a specific, discrete molecular target (PubChem).

Other names

Broad-spectrum antimicrobial targetsPan-microbial targetsConserved microbial pathwaysMulti-species microbial targets

Inhibition of highly conserved microbial processes such as protein translation, nucleic acid replication, or cell wall assembly across multiple taxa.