Generic placeholder image

Current Pharmaceutical Biotechnology


ISSN (Print): 1389-2010
ISSN (Online): 1873-4316

Involvement of Trace Elements in the Pathogenesis of Prion Diseases

Author(s): Dai Mizuno, Hironari Koyama, Susumu Ohkawara, Yutaka Sadakane and Masahiro Kawahara

Volume 15, Issue 11, 2014

Page: [1049 - 1057] Pages: 9

DOI: 10.2174/1389201015666141103020625

Price: $65


Prion diseases are progressive neurodegenerative diseases that are associated with conformational changes that convert normal cellular prion protein (PrPC) into an abnormal pathogenic prion protein (PrPSc). It is widely recognized that prion diseases are forms of transmissible amyloidosis and are considered to be protein-misfolding diseases (conformational diseases), a category that also includes Alzheimer’s disease. Trace elements play crucial roles in the conformational change affecting PrPC, and increasing evidence suggests that PrPC is a metal-binding protein that is involved in the homeostasis of Cu, Zn, and Fe. In this article, we review the current understanding of links between trace elements and the conformational change to PrPSc, based on our studies using synthetic prion peptides, as well as other new findings. We also focus on PrPSc-induced disruption of Ca homeostasis as a molecular mechanism for neurodegeneration in prion diseases. Possible roles of carnosine (ß-alanyl histidine) as a candidate neuroprotective substance use in prion diseases are also discussed.

Keywords: Amyloid, combinaconformational disease, calcium homeostasis, synapse.

Rights & Permissions Print Cite
© 2024 Bentham Science Publishers | Privacy Policy