Relationship between Hepatitis C Virus Infection and Iron Overload

Area of Science:

• Hepatology
• Virology
• Iron Metabolism

Background:

• Chronic hepatitis C (CHC) is frequently associated with iron overload.
• The interplay between iron metabolism and hepatitis C virus (HCV) infection is complex and not fully understood.

Purpose of the Study:

• To review the interactions between HCV infection and iron overload.
• To elucidate the mechanisms of iron overload in CHC.
• To understand iron's role in the HCV life cycle.

Main Methods:

• Literature review of PubMed articles up to January 28, 2017.
• Keywords included: "hepatitis C virus", "iron overload", "iron metabolism", "hepcidin", "translation", and "replication".

Main Results:

• HCV infection leads to iron overload through decreased hepcidin levels via specific signaling pathways (STAT3, MAPK, BMP/SMAD).
• Iron's effect on HCV replication is debated, with conflicting findings in studies.
• Most evidence suggests iron positively impacts HCV translation by upregulating factors like eIF3 and La protein.

Conclusions:

• CHC contributes to iron overload, which in turn influences the HCV life cycle.
• Further research is needed to fully clarify the intricate mechanisms governing the iron-HCV interaction.