Iron homeostasis: An anthropocentric perspective

Area of Science:

• Biochemistry
• Physiology
• Molecular Biology

Background:

• Iron is essential for cellular function but toxic in excess.
• Mammals lack an active iron excretion mechanism, necessitating tight regulatory control.
• Systemic and cellular mechanisms manage iron acquisition, storage, and distribution.

Purpose of the Study:

• To review recent advances in understanding iron metabolism and its regulation.
• To highlight the role of hepcidin as the master regulator of iron homeostasis.
• To discuss the feedback mechanisms and modulators of hepcidin.

Main Methods:

• Literature review of recent scientific publications.
• Analysis of studies on iron metabolism and homeostasis.
• Synthesis of current knowledge on hepcidin and ferroportin interactions.

Main Results:

• Hepcidin is identified as the central regulator of systemic iron levels.
• Hepcidin inhibits ferroportin, the primary cellular iron exporter.
• Hepcidin regulation is influenced by iron status, inflammation, and erythropoietic activity.

Conclusions:

• Recent advances have significantly improved our understanding of iron metabolism.
• Hepcidin's role in iron homeostasis is complex and multifactorial.
• Further research continues to elucidate the intricacies of iron regulation.