Title : Intestinal DMT1 is critical for iron absorption in the mouse but is not required for the absorption of copper or manganese.

Pub. Date : 2015 Oct 15

PMID : 26294671






9 Functional Relationships(s)
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1 Intestinal DMT1 is critical for iron absorption in the mouse but is not required for the absorption of copper or manganese. Iron solute carrier family 11 (proton-coupled divalent metal ion transporters), member 2 Mus musculus
2 Divalent metal-ion transporter-1 (DMT1) is a widely expressed iron-preferring membrane-transport protein that serves a critical role in erythroid iron utilization. Iron solute carrier family 11 (proton-coupled divalent metal ion transporters), member 2 Mus musculus
3 Divalent metal-ion transporter-1 (DMT1) is a widely expressed iron-preferring membrane-transport protein that serves a critical role in erythroid iron utilization. Iron solute carrier family 11 (proton-coupled divalent metal ion transporters), member 2 Mus musculus
4 Divalent metal-ion transporter-1 (DMT1) is a widely expressed iron-preferring membrane-transport protein that serves a critical role in erythroid iron utilization. Iron solute carrier family 11 (proton-coupled divalent metal ion transporters), member 2 Mus musculus
5 Divalent metal-ion transporter-1 (DMT1) is a widely expressed iron-preferring membrane-transport protein that serves a critical role in erythroid iron utilization. Iron solute carrier family 11 (proton-coupled divalent metal ion transporters), member 2 Mus musculus
6 That the anemia was due to iron deficiency was demonstrated by the following observations in DMT1(int/int) mice: 1) blood iron and tissue nonheme-iron stores were depleted; 2) mRNA expression of liver hepcidin (Hamp1) was depressed; and 3) intraperitoneal iron injection corrected the anemia, and reversed the changes in blood iron, nonheme-iron stores, and hepcidin expression levels. Iron solute carrier family 11 (proton-coupled divalent metal ion transporters), member 2 Mus musculus
7 We observed decreased total iron content in multiple tissues from DMT1(int/int) mice compared with DMT1(+/+) mice but no meaningful change in copper, manganese, or zinc. Iron solute carrier family 11 (proton-coupled divalent metal ion transporters), member 2 Mus musculus
8 DMT1(int/int) mice absorbed (64)Cu and (54)Mn from an intragastric dose to the same extent as did DMT1(+/+) mice but the absorption of (59)Fe was virtually abolished in DMT1(int/int) mice. Iron solute carrier family 11 (proton-coupled divalent metal ion transporters), member 2 Mus musculus
9 This study reveals a critical function for DMT1 in intestinal nonheme-iron absorption for normal growth and development. Iron solute carrier family 11 (proton-coupled divalent metal ion transporters), member 2 Mus musculus