Iron absorption regulation

Iron absorption regulation refers to the physiological processes that control the uptake of dietary iron from the intestine, its storage, utilization, and export, ensuring sufficient supply for cellular and systemic needs while preventing toxicity from excess iron. This regulation is mediated primarily by the hormone hepcidin, the iron exporter ferroportin, iron storage protein ferritin, and transporters such as divalent metal transporter 1 (DMT1) as well as the transferrin receptor (TFR1). Hepcidin, produced in the liver, is the master regulator: it binds to ferroportin on enterocytes and macrophages, causing its degradation, thereby reducing iron absorption and release from stores. At the cellular level, iron-responsive element/iron regulatory proteins (IRE/IRP system) control the translation of key mRNAs involved in iron import (TFR1, DMT1), export (ferroportin), and storage (ferritin). Dysregulation of this system can lead to iron deficiency or overload disorders, inflammatory anemia, and contribute to the pathogenesis of infection and neurological diseases. "Iron absorption regulation" itself is not a canonical single target. Any structured information should instead address the specific molecular mediators (particularly hepcidin, ferroportin, DMT1, transferrin receptor, ferritin, IRPs), each of which may be mapped as an individual target or receptor according to your schema.

Other names

Iron homeostasis regulationregulation of iron uptake

Drugs targeting this process primarily act by altering hepcidin production or blocking hepcidin-ferroportin interaction, modifying intestinal iron transporter expression, or modulating iron regulatory proteins (IRP/IRE pathway). Iron chelators, for instance, lower iron by binding it for excretion.