Diminishing Hepcidin via Reducing IL-6/STAT3 Pathway by Utilizing Ferulic Acid: An In Vitro Study

Area of Science:

• Biochemistry
• Molecular Biology
• Pharmacology

Background:

• Hepcidin regulates iron absorption and is implicated in anemia associated with inflammation and cancer.
• The pro-inflammatory cytokine IL-6/STAT3 pathway influences hepcidin levels.
• Ferulic acid (FA), a phenolic compound, possesses anti-inflammatory properties, but its effect on hepcidin is unknown.

Purpose of the Study:

• To investigate the impact of Ferulic acid (FA) on hepcidin secretion.
• To elucidate the underlying molecular mechanisms of FA's effect on hepcidin.

Main Methods:

• HepG2 cells were treated with varying concentrations of FA.
• Cell viability was assessed using the MTT assay.
• Gene expression (IL-6, HAMP) and protein levels (IL-6, STAT3, hepcidin) were measured via qRT-PCR and ELISA.

Main Results:

• FA demonstrated an inverse relationship with HepG2 cell proliferation (IC50 = 0.07669%).
• LPS treatment increased IL-6 and HAMP expression and IL-6, STAT3, and hepcidin secretion.
• FA significantly reduced LPS-induced increases in IL-6, HAMP, STAT3, and hepcidin levels.

Conclusions:

• Ferulic acid modulates inflammatory pathways, specifically the IL-6/STAT3 pathway.
• FA effectively lowers hepcidin levels.
• FA shows potential as a therapeutic agent for hypoferremia and anemia in inflammatory and oncological conditions.