Pathophysiology of the Belgrade rat

Area of Science:

• Physiology
• Genetics
• Biochemistry

Background:

• The Belgrade rat, originating from X-irradiation in 1966, serves as a model for divalent metal transporter 1 (DMT1) deficiency.
• Pathophysiological studies of this strain have been crucial in understanding iron balance and DMT1's role.

Purpose of the Study:

• To review current knowledge of iron transport homeostasis.
• To summarize molecular details of DMT1 function.
• To highlight the Belgrade rat's contribution to understanding iron metabolism.

Main Methods:

• Review of existing literature and studies involving the Belgrade rat model.
• Analysis of pathophysiological data related to DMT1 deficiency.
• Molecular characterization of DMT1 function.

Main Results:

• Studies using the Belgrade rat have elucidated DMT1's critical roles in red blood cell iron distribution and duodenal iron absorption.
• The model has expanded understanding of iron handling in the liver, lungs, olfactory system, brain, and kidneys.
• Key relationships between iron and manganese metabolism have been identified due to their shared transport by DMT1.

Conclusions:

• The Belgrade rat is an invaluable animal model for investigating iron homeostasis.
• DMT1 plays a fundamental role in the transport of essential metals, including iron and manganese.
• Further research utilizing this model promises deeper insights into metal transport disorders.