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TLR4 activation alters labile heme levels to regulate BACH1 and heme oxygenase-1 expression in macrophages.
In conclusion, alterations of labile heme levels in macrophages following TLR4 stimulation play a crucial role in BACH1-mediated regulation of HO-1 expression. PMID: 31026585 [PubMed - as supplied by publisher]
Source: Free Radical Biology and Medicine - April 22, 2019 Category: Biology Authors: Sudan K, Vijayan V, Madyaningrana K, Gueler F, Igarashi K, Foresti R, Motterlini R, Immenschuh S Tags: Free Radic Biol Med Source Type: research

Hypoxia enhances H2O2-mediated upregulation of hepcidin: Evidence for NOX4-mediated iron regulation
Publication date: June 2018 Source:Redox Biology, Volume 16 Author(s): Inês Silva, Vanessa Rausch, Teresa Peccerella, Gunda Millonig, Helmut-Karl Seitz, Sebastian Mueller The exact regulation of the liver-secreted peptide hepcidin, the key regulator of systemic iron homeostasis, is still poorly understood. It is potently induced by iron, inflammation, cytokines or H2O2 but conflicting results have been reported on hypoxia. In our current study, we first show that pronounced (1%) and mild (5%) hypoxia strongly induces hepcidin in human Huh7 hepatoma and primary liver cells predominantly at the transcriptional level via ST...
Source: Redox Biology - February 20, 2018 Category: Biology Source Type: research

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