Cytotoxic Chemotherapy Mechanisms of Action
Cytotoxic chemotherapy refers to agents whose mechanisms of action cause cell death or prevent cell growth, generally through inhibiting microtubule function, protein function, or DNA synthesis. Cytotoxic chemotherapy mechanisms of action may be cell cycle-dependent—arresting cancer cell growth at specific phases in the cell cycle.
Figure 1. Many cytotoxic chemotherapy mechanisms of action may be cell cycle-dependent—arresting cancer cell growth at specific phases in the cell cycle. However, chemotherapies such as alkylating agents act independently of the phases of the cell cycle. Specific nodes in the pathway that are therapeutically actionable are noted. Click here to open a larger version of this image in a new window.
Therapies That Target This Pathway
- Alkylating agents
- Antimetabolites
- Antimicrotubule agents
- Antitumor antibiotics
- Topoisomerase II inhibitors
Last Updated: May 24, 2016

