Cellular DNA and mitotic machinery

Cellular DNA and mitotic machinery refers to a broad set of therapeutic targets primarily addressed by cytotoxic chemotherapy. Cellular DNA serves as the genetic blueprint, and its integrity is essential for cell survival and replication; drugs targeting DNA include alkylating agents that form cross-links and antimetabolites that interfere with synthesis (NIH, 2023). The mitotic machinery consists of the protein-based apparatus, including microtubules and centrosomes, responsible for physical chromosome segregation during mitosis (Pihan & Doxsey, 1999). Drugs like taxanes and vinca alkaloids disrupt this machinery by altering microtubule dynamics, leading to mitotic arrest and apoptosis (Jordan & Wilson, 2004). This dual targeting is a hallmark of many traditional anticancer agents, such as estramustine, which combines DNA-alkylating properties with microtubule-disrupting activity (DrugBank, 2024). While highly effective at killing rapidly dividing cancer cells, these targets are also present in healthy tissues, leading to significant side effects like myelosuppression and neurotoxicity (StatPearls, 2023).

Other names

DNA and microtubulesDNA and spindle apparatusGenetic material and mitotic spindleCellular DNA and mitotic spindle

DNA alkylation, DNA intercalation, inhibition of DNA synthesis, microtubule stabilization, and microtubule destabilization