Iron ion and copper ion (Fe²⁺/Fe³⁺ and Cu⁺/Cu²⁺)

Iron ion (Fe²⁺/Fe³⁺) and copper ion (Cu⁺/Cu²⁺) are essential trace metal ions required for critical physiological processes in nearly all living organisms. Iron is vital for oxygen transport (as part of hemoglobin and myoglobin), electron transfer (mitochondrial respiratory complexes), and DNA synthesis. Copper acts as a cofactor in enzymes mediating antioxidant defense (e.g., superoxide dismutase), cellular respiration (cytochrome c oxidase), and redox signaling. These ions often function in tandem within metalloproteins, and their homeostasis is tightly regulated at the level of absorption, transport, storage, and export. Disruption in iron or copper metabolism leads to a range of human diseases, from anemia and neurodegeneration to hepatic and cardiac dysfunction. Due to their fundamental biochemical roles, "iron and copper ions" as such are not considered therapeutic targets in the conventional sense (they are not receptors, enzymes, or transporters themselves), but their levels or the proteins regulating their metabolism are the real pharmacological targets in clinical intervention[1][2][3][5][7]. Further context: - The phrase "iron and copper ions" is not a canonical name for a therapeutic target and refers instead to chemical species or cofactors, not specific molecular entities like a receptor or enzyme. - The true clinical targets are the proteins governing iron and copper homeostasis (e.g., divalent metal transporter 1, ceruloplasmin, ATP7A/B, transferrin). - Drugs modulate iron or copper levels indirectly, rather than binding directly to the ions in a manner typical of receptor-ligand pharmacology. Thus, this query describes important biological cofactors, not a conventional drug target, so is_incorrect is true for target annotation purposes[1][2][5].

Other names

IronCopperFe ionCu ionFerric ionFerrous ionCupric ionCuprous ion

Chelation (for both iron and copper chelators), Supplementation (iron or copper), Modulation of uptake and storage