Cellular Antioxidant Effect of an Aronia Extract and Its Polyphenolic Fractions Enriched in Proanthocyanidins, Phenolic Acids, and Anthocyanins.
(poly)phenols
NRF2
anthocyanins
antioxidant cell bioassays
aronia
chokeberry
oxidative stress
phenolic acids
proanthocyanidins
Journal
Antioxidants (Basel, Switzerland)
ISSN: 2076-3921
Titre abrégé: Antioxidants (Basel)
Pays: Switzerland
ID NLM: 101668981
Informations de publication
Date de publication:
12 Aug 2022
12 Aug 2022
Historique:
received:
07
07
2022
revised:
03
08
2022
accepted:
03
08
2022
entrez:
26
8
2022
pubmed:
27
8
2022
medline:
27
8
2022
Statut:
epublish
Résumé
Oxidative stress and chronic inflammation contribute to some chronic diseases. Aronia berries are rich in polyphenols. The aim of the present study was to characterize the cellular antioxidant effect of an aronia extract to reflect the potential physiological in vivo effect. Cellular in vitro assays in three cell lines (Caco-2, HepG2, and SH-SY5Y) were used to measure the antioxidant effect of AE, in three enriched polyphenolic fractions (A1: anthocyanins and phenolic acids; A2: oligomeric proanthocyanidins; A3: polymeric proanthocyanidins), pure polyphenols and microbial metabolites. Both direct (intracellular and membrane radical scavenging, catalase-like effect) and indirect (NRF2/ARE) antioxidant effects were assessed. AE exerted an intracellular free radical scavenging activity in the three cell lines, and A2 and A3 fractions showed a higher effect in HepG2 and Caco-2 cells. AE also exhibited a catalase-like activity, with the A3 fraction having a significant higher activity. Only A1 fraction activated the NRF2/ARE pathway. Quercetin and caffeic acid are the most potent antioxidant polyphenols, whereas cyanidin and 5-(3',4'-dihydroxyphenyl)-γ-valerolactone showed the highest antioxidant effect among polyphenol metabolites. AE rich in polyphenols possesses broad cellular antioxidant effects, and proanthocyanidins are major contributors. Polyphenol metabolites may contribute to the overall antioxidant effect of such extract in vivo.
Identifiants
pubmed: 36009281
pii: antiox11081561
doi: 10.3390/antiox11081561
pmc: PMC9405024
pii:
doi:
Types de publication
Journal Article
Langues
eng
Subventions
Organisme : Symrise TN&H
ID : Not applicable
Organisme : NSERC-Diana Food Industrial Chair on prebiotic effects of polyphenols 450
ID : 401240871
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