Reactive Oxygen Species Generation (Artesunate) (ROS Generation (Artesunate))

Reactive oxygen species (ROS) generation is a key pharmacological target and mechanism of action for artesunate. Artesunate exerts its biological effects—most notably antimalarial and anticancer activities—through the production of ROS within target cells. In the presence of ferrous iron (Fe²⁺), the endoperoxide bridge of artesunate undergoes cleavage, leading to the formation of free radicals and various reactive oxygen species. These ROS cause oxidative damage to cellular components such as DNA, proteins, and lipids in susceptible cells. This disrupts parasite membranes and enzymes in malaria or induces cell death pathways in cancer via oxidative stress. Cytotoxicity depends on increased intracellular iron levels and subsequent ROS production.

Other names

Artesunate-induced ROS productionArtesunate Mechanism of ActionArtesunate endoperoxide cleavageArtesunate-mediated oxidative stress

Artesunate contains an endoperoxide bridge that is cleaved by ferrous iron (Fe²⁺), leading to the formation of free radicals and reactive oxygen species (ROS). These ROS cause oxidative damage to cellular components such as DNA, proteins, and lipids in susceptible cells. In *Plasmodium* parasites, ROS generation leads to inhibition of protein and nucleic acid synthesis. In mammalian systems, Artesunate-induced ROS can trigger apoptosis or other forms of programmed cell death in cancer cells. The cytotoxicity mediated by artesunate is highly dependent on both increased intracellular iron levels and subsequent ROS production.