Platinum-induced free radicals

"Platinum-induced free radicals" refers to the **reactive oxygen species** (ROS) generated as a result of treatment with platinum-based chemotherapeutic agents such as cisplatin, carboplatin, and oxaliplatin. These drugs undergo redox reactions within cells that lead to mitochondrial dysfunction and increased production of superoxide anion (O_2^-), hydroxyl radical (OH·), hydrogen peroxide (H_2O_2), among other ROS. The accumulation of these reactive molecules causes cellular damage through lipid peroxidation, protein oxidation, DNA strand breaks, modulation/oxidation of ion channels (such as potassium or calcium channels), activation/inhibition of various receptors including ryanodine receptor and transient receptor potential ankyrin 1 (TRPA1), downregulation or inhibition of antioxidant enzymes like superoxide dismutase or catalase—and ultimately leads to cell death or tissue injury. This process is central both to the anti-tumor efficacy against cancer cells *and* the development of significant side effects like peripheral neuropathy ("platinum-induced peripheral neuropathy"), nephrotoxicity, ototoxicity, etc.[1][3][5] **Note:** "Platinum-induced free radicals" is not itself a molecular target but rather describes a pathological process resulting from drug action; thus it should not be considered a canonical therapeutic target like an enzyme or receptor. If you are seeking information about specific molecular targets modulated by these processes—such as TRPA1 channel or ryanodine receptor—those should be referenced directly instead[1].

Other names

Reactive oxygen species generated by platinum drugsPlatinum drug-induced ROSPt-induced oxidative stressPlatinum-based chemotherapy free radicals

Platinum-based chemotherapeutic agents such as cisplatin, carboplatin, and oxaliplatin can generate free radicals—primarily reactive oxygen species (ROS)—through redox reactions in biological systems. These ROS contribute to both the cytotoxic effects on tumor cells and the development of dose-limiting toxicities such as peripheral neuropathy and organ damage[1][2][3]. The generation of these free radicals is not itself a therapeutic target but rather an adverse effect or mechanistic consequence.