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Journal of Biological Physics

, Volume 44, Issue 3, pp 237–243 | Cite as

Fe(II) formation after interaction of the amyloid β-peptide with iron-storage protein ferritin

  • Lucia Balejcikova
  • Katarina Siposova
  • Peter Kopcansky
  • Ivo Safarik
Brief Communication

Abstract

The interaction of amyloid β-peptide (Aβ) with the iron-storage protein ferritin was studied in vitro. We have shown that Aβ during fibril formation process is able to reduce Fe(III) from the ferritin core (ferrihydrite) to Fe(II). The Aβ-mediated Fe(III) reduction yielded a two-times-higher concentration of free Fe(II) than the spontaneous formation of Fe(II) by the ferritin itself. We suggest that Aβ can also act as a ferritin-specific metallochaperone-like molecule capturing Fe(III) from the ferritin ferrihydrite core. Our observation may partially explain the formation of Fe(II)-containing minerals in human brains suffering by neurodegenerative diseases.

Keywords

Ferritin Aβ Iron reduction Alzheimer’s disease Magnetite Metallochaperone 

Notes

Acknowledgements

This work was supported by VEGA Grant Agency (project No. 2/0062/16, 2/0016/17, 0045, 2/0062/14, 2/0009/17), the Slovak Research and Development Agency (contract No. APVV-015-0453) and the Ministry of Education Agency for European Structural Funds (projects No. 26220120021, 2622012033, 26220220061, and 26220220186).

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Copyright information

© Springer Science+Business Media B.V., part of Springer Nature 2018

Authors and Affiliations

  • Lucia Balejcikova
    • 1
  • Katarina Siposova
    • 1
  • Peter Kopcansky
    • 1
  • Ivo Safarik
    • 2
    • 3
  1. 1.Institute of Experimental PhysicsSASKosiceSlovakia
  2. 2.Department of NanobiotechnologyBiology Centre, ISB, CASCeske BudejoviceCzech Republic
  3. 3.Regional Centre of Advanced Technologies and MaterialsPalacky UniversityOlomoucCzech Republic

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