Multiple cellular macromolecules

Multiple cellular macromolecules refers to the broad set of biological polymers—including DNA, RNA, proteins, and lipids—that serve as non-specific targets for highly reactive chemical agents (DrugBank, 2024). This classification is typically applied to drugs or toxins that lack a specific binding pocket and instead react covalently with various functional groups throughout the cell (NCBI, 2023). For instance, alkylating agents like nitrogen mustards or sterilants like ethylene oxide exert their effects by cross-linking these macromolecules, leading to the inhibition of essential processes like DNA replication and protein synthesis (StatPearls, 2023). While this multi-target approach is effective for achieving rapid cytotoxicity in cancer treatment or microbial disinfection, it is inherently associated with a high risk of off-target effects. The lack of selectivity often results in significant safety concerns, including mutagenicity, carcinogenicity, and severe systemic toxicity in humans (PubMed, 2022). Therefore, in drug development and toxicology, this term identifies agents that produce widespread cellular damage rather than modulating a specific signaling pathway (NIH, 2023).

Other names

Cellular macromoleculesBiological macromoleculesNon-specific cellular targets

Non-specific covalent modification, including alkylation and cross-linking, of various cellular components such as DNA, RNA, and proteins.