DNA and other cellular components (DNA)

DNA and other cellular components represent a broad category of biological targets that are not specific proteins, but rather the fundamental building blocks of the cell, most notably deoxyribonucleic acid (DNA). DNA serves as the primary repository of genetic information, and its integrity is essential for cellular function, replication, and survival (Source: NIH). Many traditional chemotherapeutic agents, such as alkylating agents and platinum-based compounds, target DNA by forming covalent bonds or intercalating between base pairs, which inhibits replication and triggers programmed cell death (Source: StatPearls). While highly effective against rapidly proliferating cancer cells, these interactions are generally non-specific and can damage the DNA of healthy tissues, leading to significant toxicities (Source: PubMed). Beyond DNA, this category may include other macromolecules like RNA or structural lipids that are affected by certain non-specific cytotoxic or antiseptic agents. Consequently, while these targets are clinically validated, the lack of specificity remains a major challenge in modern drug design (Source: NIH).

Other names

Deoxyribonucleic acidGenomic DNACellular macromoleculesNon-specific cellular targets

Drugs targeting DNA typically act through covalent modification (alkylation), cross-linking of strands, or non-covalent intercalation between base pairs, all of which physically obstruct the machinery required for DNA replication and transcription (Source: StatPearls). These actions lead to the formation of DNA adducts and double-strand breaks, which activate DNA damage response pathways and, if the damage is irreparable, trigger apoptosis (Source: PubMed). Some agents also generate reactive oxygen species that cause oxidative damage to DNA and other cellular components like lipids and proteins (Source: NIH).