DNA and DNA-related enzymes (DNA)

DNA and DNA-related enzymes represent a broad class of therapeutic targets essential for the storage, replication, and expression of genetic information. DNA itself serves as the template for life, while associated enzymes such as polymerases, topoisomerases, helicases, and ligases facilitate the complex processes of genome maintenance and cellular division (NIH, 2023). In oncology, these targets are frequently exploited because rapidly dividing cancer cells are highly dependent on efficient DNA replication and repair; drugs like cisplatin or doxorubicin either damage the DNA template or inhibit the enzymes required to resolve structural tension during replication (StatPearls, 2023). Beyond cancer, DNA-related enzymes are critical targets in infectious diseases, where viral or bacterial polymerases are selectively inhibited to prevent pathogen replication (PubMed, 2022). However, because these processes are fundamental to normal cell biology, therapeutic intervention often carries significant risks of systemic toxicity, including bone marrow suppression and the potential for inducing secondary cancers due to off-target genomic instability (ACS, 2024). This entry is considered incorrect as a specific target because it describes a vast category of distinct molecular entities rather than a single protein or receptor.

Other names

Deoxyribonucleic acidDNA-modifying enzymesDNA-processing enzymesGenomic DNADNA replication machinery

Drugs targeting this group act through various mechanisms including direct DNA alkylation, intercalation, cross-linking, or the inhibition of specific enzymes such as DNA polymerases, topoisomerases, and DNA methyltransferases to disrupt replication and transcription (StatPearls, 2023).