What is the hepcidin gene?

What is the hepcidin gene?

The HAMP gene provides instructions for the production of a protein called hepcidin. Hepcidin, which is produced primarily in the liver, plays a major role in maintaining iron balance in the body. When blood iron levels are high, iron enters liver cells and triggers them to increase production of hepcidin.

What is the role of hepcidin?

Hepcidin is the central regulator of systemic iron homeostasis. Dysregulation of hepcidin production results in a variety of iron disorders. Hepcidin deficiency is the cause of iron overload in hereditary hemochromatosis, iron-loading anemias, and hepatitis C.

Where is Hjv gene located?

Hemojuvelin

What does Hamp gene stand for?

HAMP (Hepcidin Antimicrobial Peptide) is a Protein Coding gene. Diseases associated with HAMP include Hemochromatosis, Type 2B and Hemochromatosis Type 2. Among its related pathways are Iron metabolism in placenta and Hfe effect on hepcidin production.

How does hepcidin cause anemia?

In chronic diseases, high hepcidin production inhibits iron release from macrophages and intestinal absorption of iron. This consequently induces an anemic condition. The interaction between hepcidin and ferroportin determines the plasma iron transport.

Is hepcidin good or bad?

Hepcidin transcription is negatively regulated by soluble HJV (s-HJV), which acts as an antagonist of the BMP pathway, competing with m-HJV for BMP ligands. When matriptase-2 is mutated, hepcidin increases, resulting in the chronic inhibition of iron absorption and consequent anemia [21-23].

How is hepcidin controlled?

Plasma hepcidin levels are regulated by different stimuli, including cytokines, plasma iron, anemia, and hypoxia. Dysregulation of hepcidin expression results in iron disorders.

What is Type 2 hemochromatosis?

Hemochromatosis type 2 is a disease in which too much iron builds up in the body. This is also called iron overload. Accumulation of iron in the organs is toxic and can cause organ damage. While many organs can be affected, iron overload is especially likely to affect the liver, heart, and pancreas.

What is high iron called?

Hemochromatosis, or iron overload, is a condition in which your body stores too much iron.

What does the HFE gene do?

The HFE gene provides instructions for producing a protein that is located on the surface of cells, primarily liver and intestinal cells. The HFE protein is also found on some immune system cells. The HFE protein interacts with other proteins on the cell surface to detect the amount of iron in the body.

How does the hepcidin gene affect iron levels?

It is a negative modulator of iron levels in the body; it decreases iron absorption and release of iron from macrophages by inactivating ferroportins. The hepcidin gene is transcriptionally activated by hemojuvelin (HJV), HFE protein, and transferrin receptor 2 (TFR2).

What happens when hepcidin is elevated in the blood?

Aberrantly increased hepcidin leads to systemic iron deficiency and/or iron restricted erythropoiesis. Furthermore, insufficiently elevated hepcidin occurs in multiple diseases associated with iron overload.

What are the mutations in the HAMP hepcidin gene?

Mutations in this gene cause hemochromatosis type 2B, also known as juvenile hemochromatosis, a disease caused by severe iron overload that results in cardiomyopathy, cirrhosis, and endocrine failure. [provided by RefSeq, Oct 2014] HAMP hepcidin antimicrobial peptide [ (human)] Gene ID: 57817, updated on 20-Dec-2019 Summary

How is the hepcidin family related to endocytosis?

Belongs to the hepcidin family. Liver-produced hormone that constitutes the main circulating regulator of iron absorption and distribution across tissues. Acts by promoting endocytosis and degradation of ferroportin, leading to the retention of iron in iron-exporting cells and decreased flow of iron into plasma.