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Anti-Ageing Potential of S. euboea Heldr. Phenolics. Molecules 2021; 26:molecules26113151. [PMID: 34070495 PMCID: PMC8198620 DOI: 10.3390/molecules26113151] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 05/14/2021] [Accepted: 05/17/2021] [Indexed: 11/26/2022] Open
Abstract
In recent years, the use of Sideritis species as bioactive agents is increasing exponentially. The present study aimed to investigate the chemical constituents, as well as the anti-ageing potential of the cultivated Sideritis euboea Heldr. The chemical fingerprinting of the ethyl acetate residue of this plant was studied using 1D and 2D-NMR spectra. Isomeric compounds belonging to acylated flavone derivatives and phenylethanoid glycosides were detected in the early stage of the experimental process through 2D-NMR techniques. Overall, thirty-three known compounds were isolated and identified. Some of them are reported for the first time not only in S. euboea, but also in genus Sideritis L. The anti-ageing effect of the ethyl acetate residue and the isolated specialized products was assessed as anti-hyaluronidase activity. In silico docking simulation revealed the interactions of the isolated compounds with hyaluronidase. Furthermore, the in vitro study on the inhibition of hyaluronidase unveiled the potent inhibitory properties of ethyl acetate residue and apigenin 7-O-β-d-glucopyranoside. Though, the isomers of apigenin 7-O-p-coumaroyl-glucosides and also the 4′-methyl-hypolaetin 7-O-[6′′′-O-acetyl-β-d-allopyranosyl]-(1→2)-β-d-glucopyranoside exerted moderate hyaluronidase inhibition. This research represents the first study to report on the anti-hyaluronidase activity of Sideritis species, confirming its anti-inflammatory, cytotoxic and anti-ageing effects and its importance as an agent for cosmetic formulations as also anticancer potential.
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Lytra K, Tomou EM, Chrysargyris A, Christofi MD, Miltiadous P, Tzortzakis N, Skaltsa H. Bio-Guided Investigation of Sideritis cypria Methanol Extract Driven by in Vitro Antioxidant and Cytotoxic Assays. Chem Biodivers 2021; 18:e2000966. [PMID: 33594798 DOI: 10.1002/cbdv.202000966] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2020] [Accepted: 01/19/2021] [Indexed: 12/15/2022]
Abstract
Sideritis cypria Post is an endemic and endangered species of Northern Cyprus. The overall aim of the present study was to evaluate the total phenolic content, the antioxidant, the cytotoxic and the antimicrobial activity of the methanol extract obtained from the aerial parts of cultivated S. cypria. A bio-guided approach led to the isolation of 27 chemical compounds by using various analytical techniques. Their structures were elucidated on the basis of 1D and 2D NMR spectroscopy. The crude extract exerted strong antioxidant activity (DPPH and FRAP assays) which was attributed to its high total phenolic content. Furthermore, groups rich in phenolic content showed highest antioxidant property, whereas groups with phytosterols, diterpenoids and apigenin derivatives exerted cytotoxic effects in MDA-MB231 cancer cell line by the MTT method. Moreover, the cytotoxic activity of four isolated apigenin derivatives was evaluated in the same cancer cells. The antimicrobial activity of the extract and groups were measured, demonstrating lack of activity. To the best of our knowledge, this survey is the first report on the biological activities of the methanol extract of S. cypria.
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Affiliation(s)
- Krystalia Lytra
- Department of Pharmacognosy and Chemistry of Natural Products, School of Pharmacy, National and Kapodistrian University of Athens, Panepistimiopolis, Zografou, 15771, Athens, Greece
| | - Ekaterina-Michaela Tomou
- Department of Pharmacognosy and Chemistry of Natural Products, School of Pharmacy, National and Kapodistrian University of Athens, Panepistimiopolis, Zografou, 15771, Athens, Greece
| | - Antonios Chrysargyris
- Department of Agricultural Sciences, Biotechnology and Food Science, Cyprus University of Technology, 3036, Limassol, Cyprus
| | - Maria-Dolores Christofi
- Department of Nursing, School of Health Sciences, Cyprus University of Technology, 3041, Limassol, Cyprus
| | - Panagiota Miltiadous
- Department of Nursing, School of Health Sciences, Cyprus University of Technology, 3041, Limassol, Cyprus
| | - Nikolaos Tzortzakis
- Department of Agricultural Sciences, Biotechnology and Food Science, Cyprus University of Technology, 3036, Limassol, Cyprus
| | - Helen Skaltsa
- Department of Pharmacognosy and Chemistry of Natural Products, School of Pharmacy, National and Kapodistrian University of Athens, Panepistimiopolis, Zografou, 15771, Athens, Greece
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Machado VR, Jacques AV, Marceli NS, Biavatti MW, Santos-Silva MC. Anti-leukemic activity of semisynthetic derivatives of lupeol. Nat Prod Res 2020; 35:4494-4501. [PMID: 32178533 DOI: 10.1080/14786419.2020.1737051] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
In our previous work, lupeol was isolated from aerial parts of V. scorpioides and modified by semisynthetic approach. The purpose of this study was to investigate the cytotoxicity of lupeol and its derivatives previously prepared on the human K562 acute myeloid leukemia cell and human Jurkat acute lymphoid leukemia cell in vitro. Compounds 3β-hydroxylup-20(29)-en-30-al (2), lup-20(30)-en-3β,29-diol (3), 3β-acetoxylup-20(29)-en-30-al (5) and 3β-acetoxy-30-hydroxylup-20(29)-ene (6) presented cytotoxicity with IC50 ranging from 11.72 to 56.15 µM at 24 h of incubation for both cell lines. Most of the active compounds (3, 5 and 6) were selective to leukemia cells, in compare with healthy cells. The hemolysis assay showed high blood compatibility of the cytotoxic lupeol derivatives which makes possible an intravenous administration of these compounds aiming to the potential to development of anti-leukemic drugs.
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Affiliation(s)
- Vanessa Rocha Machado
- Department of Pharmaceutical Sciences, Federal University of Santa Catarina (UFSC), Florianópolis, Brazil
| | - Amanda Virtuoso Jacques
- Department of Clinical Analysis, Federal University of Santa Catarina (UFSC), Florianópolis, Brazil
| | - Natália Stefanes Marceli
- Department of Clinical Analysis, Federal University of Santa Catarina (UFSC), Florianópolis, Brazil
| | - Maique Weber Biavatti
- Department of Pharmaceutical Sciences, Federal University of Santa Catarina (UFSC), Florianópolis, Brazil
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