PubAg

Main content area

Synthesis and biological evaluation of quercetin and resveratrol peptidyl derivatives as potential anticancer and antioxidant agents

Author:
Mrkus, Ljiljana, Batinić, Jelena, Bjeliš, Nina, Jakas, Andreja
Source:
Amino acids 2019 v.51 no.2 pp. 319-329
ISSN:
0939-4451
Subject:
antineoplastic activity, antioxidant activity, antioxidants, esters, fruits, models, monitoring, peptides, polyphenols, quercetin, resveratrol, tea, vegetables, wines
Abstract:
Quercetin and resveratrol are polyphenolic compounds, members of the flavonoid and the stilbene family, respectively, both medicinally important as dietary anticancer and antioxidant agents. They are present in a variety of foods—including fruits, vegetables, tea, wine, as well as other dietary supplements—and are responsible for various health benefits. Different quercetin and resveratrol esters of Leu/Met-enkephalin and tetrapeptide Leu-Ser-Lys-Leu (LSKL) were synthesized as model systems for monitoring the influence of the peptides on biological activity of resveratrol and quercetin. General formula of the main peptidyl-quercetin derivatives is 2-[3-(aa)ₙ-4-hydroxyphenyl]-3,5,7-tri-hydroxy-4H-1-benzopyran-4-on, and the general formula of the main peptidyl-resveratrol derivatives is (E)-5-[4-(aa)ₙ)styryl]benzene-1,3-diol. The antioxidant and anticancer activities of prepared compounds were investigated. Significant anticancer activity was obtained for the LSKL-based both quercetin and resveratrol derivatives. All prepared compounds exhibit antioxidant activity, in particular quercetin derivative containing Met-enkephalin.
Agid:
6314606