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Carnosic Acid and Carnosol Display Antioxidant and Anti-Prion Properties in In Vitro and Cell-Free Models of Prion Diseases.
Karagianni, Korina; Pettas, Spyros; Kanata, Eirini; Lioulia, Elisavet; Thune, Katrin; Schmitz, Matthias; Tsamesidis, Ioannis; Lymperaki, Evgenia; Xanthopoulos, Konstantinos; Sklaviadis, Theodoros; Dafou, Dimitra.
Affiliation
  • Karagianni K; Department of Genetics, Development and Molecular Biology, School of Biology, Aristotle University of Thessaloniki, 541 24 Thessaloniki, Greece.
  • Pettas S; Department of Genetics, Development and Molecular Biology, School of Biology, Aristotle University of Thessaloniki, 541 24 Thessaloniki, Greece.
  • Kanata E; Neurodegenerative Diseases Research Group, Department of Pharmacy, School of Health Sciences, Aristotle University of Thessaloniki, 541 24 Thessaloniki, Greece.
  • Lioulia E; Department of Genetics, Development and Molecular Biology, School of Biology, Aristotle University of Thessaloniki, 541 24 Thessaloniki, Greece.
  • Thune K; Department of Neurology, German Center for Neurodegenerative Diseases (DZNE), University Medicine Goettingen, 37075 Goettingen, Germany.
  • Schmitz M; Department of Neurology, German Center for Neurodegenerative Diseases (DZNE), University Medicine Goettingen, 37075 Goettingen, Germany.
  • Tsamesidis I; Department of Prosthodontics, School of Dentistry, Faculty of Health Sciences, Aristotle University of Thessaloniki, 541 24 Thessaloniki, Greece.
  • Lymperaki E; Department of Biomedical Sciences, International Hellenic University, 570 01 Thessaloniki, Greece.
  • Xanthopoulos K; Neurodegenerative Diseases Research Group, Department of Pharmacy, School of Health Sciences, Aristotle University of Thessaloniki, 541 24 Thessaloniki, Greece.
  • Sklaviadis T; Neurodegenerative Diseases Research Group, Department of Pharmacy, School of Health Sciences, Aristotle University of Thessaloniki, 541 24 Thessaloniki, Greece.
  • Dafou D; Department of Genetics, Development and Molecular Biology, School of Biology, Aristotle University of Thessaloniki, 541 24 Thessaloniki, Greece.
Antioxidants (Basel) ; 11(4)2022 Apr 06.
Article in En | MEDLINE | ID: mdl-35453411
Prion diseases are transmissible encephalopathies associated with the conversion of the physiological form of the prion protein (PrPC) to the disease-associated (PrPSc). Despite intense research, no therapeutic or prophylactic agent is available. The catechol-type diterpene Carnosic acid (CA) and its metabolite Carnosol (CS) from Rosmarinus officinalis have well-documented anti-oxidative and neuroprotective effects. Since oxidative stress plays an important role in the pathogenesis of prion diseases, we investigated the potential beneficial role of CA and CS in a cellular model of prion diseases (N2a22L cells) and in a cell-free prion amplification assay (RT-QuIC). The antioxidant effects of the compounds were confirmed when N2a22L were incubated with CA or CS. Furthermore, CA and CS reduced the accumulation of the disease-associated form of PrP, detected by Western Blotting, in N2a22L cells. This effect was validated in RT-QuIC assays, indicating that it is not associated with the antioxidant effects of CA and CS. Importantly, cell-free assays revealed that these natural products not only prevent the formation of PrP aggregates but can also disrupt already formed aggregates. Our results indicate that CA and CS have pleiotropic effects against prion diseases and could evolve into useful prophylactic and/or therapeutic agents against prion and other neurodegenerative diseases.
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Full text: 1 Collection: 01-internacional Database: MEDLINE Language: En Journal: Antioxidants (Basel) Year: 2022 Document type: Article Affiliation country: Greece Country of publication: Switzerland

Full text: 1 Collection: 01-internacional Database: MEDLINE Language: En Journal: Antioxidants (Basel) Year: 2022 Document type: Article Affiliation country: Greece Country of publication: Switzerland