Cited by 309Iron Metabolism and DisordersTGF-β signaling in diseasesPlant Micronutrient Interactions and Effects

Bone morphogenetic proteins 2, 4, and 9 stimulate murine hepcidin 1 expression independently of Hfe, transferrin receptor 2 (Tfr2), and IL-6

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Truksa, Jaroslav, Peng, Hongfan, Lee, Pauline, Beutler, Ernest·2006·Proceedings of the National Academy of Sciences

Abstract

Recently, it has been suggested that hepcidin, a peptide involved in iron homeostasis, is regulated by bone morphogenetic proteins (BMPs), apparently by binding to hemojuvelin (Hjv) as a coreceptor and signaling through Smad4. We investigate the role of Hfe, Tfr2 (transferrin receptor 2), and IL-6 in BMP2-, BMP4-, and BMP9-stimulated up-regulation of murine hepcidin, because these molecules, like Hjv, are known to be involved in hepcidin signaling. We show that the BMP signaling pathway acts independently of Hfe, Tfr2, and IL-6: The response to BMP2, BMP4, and BMP9 is similar in isolated hepatocytes of wild-type, Hfe −/− , IL-6 −/− , and Tfr2 m mutant mice. The potency of different human BMPs in stimulating hepcidin transcription by murine primary hepatocytes is BMP9 > BMP4 > BMP2. However, in human HepG2 cells, BMP4 and BMP9 are equally potent, whereas BMP2 requires a higher dose to become an effective hepcidin activator. Moreover, all of the tested BMPs are more potent regulators of hepcidin than IL-6 and thus are the most potent known stimulators of hepcidin transcription.

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  1. [14]Nicolas G., Chauvet C., Viatte L., Danan J. L., Bigard X., Devaux I., Beaumont C., Kahn A., Vaulont S. J. Clin. Invest. 2002;110:1037–1044. doi: 10.1172/JCI15686. [DOI] [PMC free article] [PubMed] [Google Scholar] · DOI · Paper page
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Authors
Truksa, J., Peng, H., Lee, P., & Beutler, E.
Affiliations
Scripps Research Institute (US)
Venue
Proceedings of the National Academy of Sciences
Published
2006-07-05
Volume
103
Issue
27
Pages
10289-10293
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W2064708319
Cited by
309
References
26
Citations by year
2026: 3 · 2025: 1 · 2024: 7 · 2023: 10 · 2022: 3 · 2021: 10 · 2020: 3 · 2019: 11 · 2018: 9 · 2017: 10 · 2016: 14 · 2015: 10 · 2014: 16 · 2013: 19 · 2012: 19
FWCI
21.56
Type
journal article
Language
en
Open access
Locations
  • Proceedings of the National Academy of Sciences (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
National Institute of Diabetes and Digestive and Kidney Diseases (DK 53505, R01DK053505)
Topics
  • Health Sciences › Medicine › Hematology › Iron Metabolism and Disorders
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › TGF-β signaling in diseases
  • Life Sciences › Agricultural and Biological Sciences › Plant Science › Plant Micronutrient Interactions and Effects
Keywords
hepcidin, bone morphogenetic proteins, BMP-2, BMP4, BMP9, iron homeostasis, hemojuvelin, HFE gene, transferrin receptor 2, interleukin-6, SMAD4, hepatocytes, BMP signaling
MeSH terms
Hemochromatosis Protein, Animals, Cells, Cultured, Humans, Lipopolysaccharides, Membrane Proteins, Mice, Inbred C57BL, Mice, Transgenic, Mutation, Receptors, Transferrin, Histocompatibility Antigens Class I, Interleukin-6, Up-Regulation, Transforming Growth Factor beta, Bone Morphogenetic Proteins, Hepatocytes, Antimicrobial Cationic Peptides, Mice, Bone Morphogenetic Protein 2, Growth Differentiation Factors, Bone Morphogenetic Protein 4, Growth Differentiation Factor 2, Hepcidins

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