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Evans N, Cloward J, Ward RE, van Wietmarschen HA, van Eekeren N, Kronberg SL, Provenza FD, van Vliet S. Pasture-finishing of cattle in Western U.S. rangelands improves markers of animal metabolic health and nutritional compounds in beef. Sci Rep 2024; 14:20240. [PMID: 39215122 PMCID: PMC11364752 DOI: 10.1038/s41598-024-71073-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Accepted: 08/23/2024] [Indexed: 09/04/2024] Open
Abstract
As environmental and health concerns of beef production and consumption mount, there is growing interest in agroecological production methods, including finishing beef cattle on pastures with phytochemically diverse grasses, forbs, and/or shrubs. The goal of this metabolomics, lipidomics, and fatty acid methyl ester profiling study was to compare meat (pectoralis profundus) of Black Angus cattle from two commercial US beef finishing systems (pasture-finished on Western U.S. rangeland; n = 18 and grain-finished in a Midwest U.S. feedlot; n = 18). A total of 907 out of 1575 compounds differed in abundance between pasture-finished and grain-finished beef samples (all, false discovery rate adjusted P < 0.05). Pasture-finished beef contained higher levels of phenolic antioxidants (2.6-fold), alpha-tocopherol (3.1-fold), nicotinate/vitamin B3 (9.4-fold), choline (1.2-fold), myo-inositol (1.8-fold), and omega-3 fatty acids (4.1-fold). Grain-finished beef contained higher levels of gamma-tocopherol (14.6-fold), nicotinamide/vitamin B3 (1.5-fold), pantothenate/vitamin B5 (1.3-fold), and pyridoxine/vitamin B6 (1.3-fold); indicating that feeding some grain (by-products) could be beneficial to increase levels of certain B-vitamins. Pasture-finished beef samples also displayed lower levels of oxidative stress (homocysteine, 0.6-fold; and 4-hydroxy-nonenal-glutathione, 0.4-fold) and improved mitochondrial function (1.3-fold) compared to grain-finished animals. Two potential metabolites of fluoroquinolone antibiotics, 2,8-quinolinediol and 2,8-quinolinediol sulfate, were only observed in grain-finished beef, though the source remains unknown. While pasture-finished cattle displayed improved markers of metabolic health and concentrated additional, potentially health-promoting compounds in their meat, our findings should not be interpreted as that grain-finished beef is unhealthy to consume. Randomized controlled trials in humans are required to further assess whether observed differences between pasture-finished and feedlot-finished beef have an appreciable effect on human health.
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Affiliation(s)
- Nikia Evans
- School of Medicine, Oregon Health & Science University, Portland, OR, 97239, USA
| | - Jennifer Cloward
- Department of Nutrition, Dietetics, and Food Sciences, Center for Human Nutrition Studies, Utah State University, Logan, UT, 84322, USA
| | - Robert E Ward
- Department of Nutrition, Dietetics, and Food Sciences, Center for Human Nutrition Studies, Utah State University, Logan, UT, 84322, USA
| | | | | | - Scott L Kronberg
- Northern Great Plains Research Laboratory, USDA-Agricultural Research Service, Mandan, ND, 58554, USA
| | | | - Stephan van Vliet
- Department of Nutrition, Dietetics, and Food Sciences, Center for Human Nutrition Studies, Utah State University, Logan, UT, 84322, USA.
- Duke Molecular Physiology Institute, Duke University Medical Center, Durham, NC, 27701, USA.
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Noti V, Pontiki E, Hadjipavlou-Litina D. Development of Novel Pyrrole Derivatives and Their Cinnamic Hybrids as Dual COX-2/LOX Inhibitors. Molecules 2023; 28:7958. [PMID: 38138448 PMCID: PMC10746053 DOI: 10.3390/molecules28247958] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2023] [Revised: 11/22/2023] [Accepted: 12/02/2023] [Indexed: 12/24/2023] Open
Abstract
Molecular hybridization has emerged as a promising approach in the treatment of diseases exhibiting multifactorial etiology. With regard to this, dual cyclooxygenase-2/lipoxygenase (COX-2/LOX) inhibitors could be considered a safe alternative to traditional non-steroidal anti-inflammatory drugs (tNSAIDs) and selective COX-2 inhibitors (coxibs) for the treatment of inflammatory conditions. Taking this into account, six novel pyrrole derivatives and pyrrole-cinnamate hybrids were developed as potential COX-2 and soybean LOX (sLOX) inhibitors with antioxidant activity. In silico calculations were performed to predict their ADMET (absorption, distribution, metabolism, excretion, toxicity) properties and drug-likeness, while lipophilicity was experimentally determined as RM values. All synthesized compounds (1-4, 5-8) could be described as drug-like. The results from the docking studies on COX-2 were in accordance with the in vitro studies. According to molecular docking studies on soybean LOX, the compounds displayed allosteric interactions with the enzyme. Pyrrole 2 appeared to be the most potent s-LOX inhibitor (IC50 = 7.5 μM). Hybrids 5 and 6 presented a promising combination of in vitro LOX (IC50 for 5 = 30 μM, IC50 for 6 = 27.5 μM) and COX-2 (IC50 for 5 = 0.55 μM, IC50 for 6 = 7.0 μM) inhibitory activities, and therefore could be used as the lead compounds for the synthesis of more effective multi-target agents.
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Affiliation(s)
| | | | - Dimitra Hadjipavlou-Litina
- Department of Pharmaceutical Chemistry, School of Pharmacy, Faculty of Health Sciences, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (V.N.); (E.P.)
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3
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Dohendou M, Dekamin MG, Namaki D. Pd@l-asparagine-EDTA-chitosan: a highly effective and reusable bio-based and biodegradable catalyst for the Heck cross-coupling reaction under mild conditions. NANOSCALE ADVANCES 2023; 5:2621-2638. [PMID: 37143802 PMCID: PMC10153479 DOI: 10.1039/d3na00058c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/25/2023] [Accepted: 03/17/2023] [Indexed: 05/06/2023]
Abstract
In this research, a novel supramolecular Pd(ii) catalyst supported on chitosan grafted by l-asparagine and an EDTA linker, named Pd@ASP-EDTA-CS, was prepared for the first time. The structure of the obtained multifunctional Pd@ASP-EDTA-CS nanocomposite was appropriately characterized by various spectroscopic, microscopic, and analytical techniques, including FTIR, EDX, XRD, FESEM, TGA, DRS, and BET. The Pd@ASP-EDTA-CS nanomaterial was successfully employed, as a heterogeneous catalytic system, in the Heck cross-coupling reaction (HCR) to afford various valuable biologically-active cinnamic acid derivatives in good to excellent yields. Different aryl halides containing I, Br and even Cl were used in HCR with various acrylates for the synthesis of corresponding cinnamic acid ester derivatives. The catalyst shows a variety of advantages including high catalytic activity, excellent thermal stability, easy recovery by simple filtration, more than five cycles of reusability with no significant decrease in its efficacy, biodegradability, and excellent results in the HCR using low-loaded Pd on the support. In addition, no leaching of Pd into the reaction medium and the final products was observed.
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Affiliation(s)
- Mohammad Dohendou
- Department of Chemistry, Pharmaceutical and Heterocyclic Compounds Research Laboratory, Iran University of Science and Technology Iran
| | - Mohammad G Dekamin
- Department of Chemistry, Pharmaceutical and Heterocyclic Compounds Research Laboratory, Iran University of Science and Technology Iran
| | - Danial Namaki
- Department of Chemistry, Pharmaceutical and Heterocyclic Compounds Research Laboratory, Iran University of Science and Technology Iran
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Georgiou N, Chontzopoulou E, Cheilari A, Katsogiannou A, Karta D, Vavougyiou K, Hadjipavlou-Litina D, Javornik U, Plavec J, Tzeli D, Vassiliou S, Mavromoustakos T. Thiocarbohydrazone and Chalcone-Derived 3,4-Dihydropyrimidinethione as Lipid Peroxidation and Soybean Lipoxygenase Inhibitors. ACS OMEGA 2023; 8:11966-11977. [PMID: 37033811 PMCID: PMC10077549 DOI: 10.1021/acsomega.2c07625] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Accepted: 03/02/2023] [Indexed: 06/19/2023]
Abstract
The potential of the 4,6-diphenyl-3,4-dihydropyrimidine-2(1H)-thione (abbreviated as KKII5) and (E)-N'-benzylidenehydrazinecarbothiohydrazide (abbreviated as DKI5) compounds as possible drug leads is investigated. KKII5 and DKI5 are synthesized in high yield of up to 97%. Their structure, binding in the active site of the LOX-1 enzyme, and their toxicity are studied via joint experimental and computational methodologies. Specifically, the structure assignment and conformational analysis were achieved by applying homonuclear and heteronuclear 2D nuclear magnetic resonance (NMR) spectroscopy (2D-COSY, 2D-NOESY, 2D-HSQC, and 2D-HMBC) and density functional theory (DFT). The obtained DFT lowest energy conformers were in agreement with the NOE correlations observed in the 2D-NOESY spectra. Additionally, docking and molecular dynamics simulations were performed to discover their ability to bind and remain stabile in the active site of the LOX-1 enzyme. These in silico experiments and DFT calculations indicated favorable binding for the enzyme under study. The strongest binding energy, -9.60 kcal/mol, was observed for dihydropyrimidinethione KKII5 in the active site of LOX-1. ADMET calculations showed that the two molecules lack major toxicities and could serve as possible drug leads. The redox potential of the active center of LOX-1 with the binding molecules was calculated via DFT methodology. The results showed a significantly smaller energy attachment of 2.8 eV with KKII5 binding in comparison to DKI5. Thus, KKII5 enhanced the ability of the active center to receive electrons compared to DKI5. This is related to the stronger binding interaction of KKII5 relative to that of DK15 to LOX-1. The two very potent LOX-1 inhibitors exerted IC50 19 μΜ (KKII5) and 22.5 μΜ (DKI5). Furthermore, they both strongly inhibit lipid peroxidation, namely, 98% for KKII5 and 94% for DKI5.
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Affiliation(s)
- Nikitas Georgiou
- Laboratory
of Organic Chemistry, Department of Chemistry, National and Kapodistrian University of Athens, Panepistimioupolis Zografou, 11571 Athens, Greece
| | - Eleni Chontzopoulou
- Laboratory
of Organic Chemistry, Department of Chemistry, National and Kapodistrian University of Athens, Panepistimioupolis Zografou, 11571 Athens, Greece
| | - Antigoni Cheilari
- Department
of Pharmacognosy and Natural Products Chemistry, Faculty of Pharmacy, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, 15771 Athens, Greece
| | - Aikaterini Katsogiannou
- Laboratory
of Organic Chemistry, Department of Chemistry, National and Kapodistrian University of Athens, Panepistimioupolis Zografou, 11571 Athens, Greece
| | - Danai Karta
- Laboratory
of Organic Chemistry, Department of Chemistry, National and Kapodistrian University of Athens, Panepistimioupolis Zografou, 11571 Athens, Greece
| | - Kyriaki Vavougyiou
- Laboratory
of Organic Chemistry, Department of Chemistry, National and Kapodistrian University of Athens, Panepistimioupolis Zografou, 11571 Athens, Greece
| | - Dimitra Hadjipavlou-Litina
- Department
of Pharmaceutical Chemistry, School of Pharmacy, Faculty of Health
Sciences,, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
| | - Uroš Javornik
- Slovenian
NMR Centre, National Institute of Chemistry, SI-1001 Ljubljana, Slovenia
| | - Janez Plavec
- Slovenian
NMR Centre, National Institute of Chemistry, SI-1001 Ljubljana, Slovenia
| | - Demeter Tzeli
- Laboratory
of Physical Chemistry, Department of Chemistry, National and Kapodistrian University of Athens, Panepistimioupolis Zografou, 11571 Athens, Greece
- Theoretical
and Physical Chemistry Institute, National
Hellenic Research Foundation, 48 Vassileos Constantinou Avenue, 11635 Athens, Greece
| | - Stamatia Vassiliou
- Laboratory
of Organic Chemistry, Department of Chemistry, National and Kapodistrian University of Athens, Panepistimioupolis Zografou, 11571 Athens, Greece
| | - Thomas Mavromoustakos
- Laboratory
of Organic Chemistry, Department of Chemistry, National and Kapodistrian University of Athens, Panepistimioupolis Zografou, 11571 Athens, Greece
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5
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van Vliet S, Blair AD, Hite LM, Cloward J, Ward RE, Kruse C, van Wietmarchsen HA, van Eekeren N, Kronberg SL, Provenza FD. Pasture-finishing of bison improves animal metabolic health and potential health-promoting compounds in meat. J Anim Sci Biotechnol 2023; 14:49. [PMID: 37004100 PMCID: PMC10067211 DOI: 10.1186/s40104-023-00843-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Accepted: 01/31/2023] [Indexed: 04/03/2023] Open
Abstract
BACKGROUND With rising concerns regarding the effects of red meat on human and environmental health, a growing number of livestock producers are exploring ways to improve production systems. A promising avenue includes agro-ecological practices such as rotational grazing of locally adapted ruminants. Additionally, growing consumer interest in pasture-finished meat (i.e., grass-fed) has raised questions about its nutritional composition. Thus, the goal of this study was to determine the impact of two common finishing systems in North American bison-pasture-finished or pen-finished on concentrates for 146 d-on metabolomic, lipidomic, and fatty acid profiles of striploins (M. longissimus lumborum). RESULTS Six hundred and seventy-one (671) out of 1570 profiled compounds (43%) differed between pasture- and pen-finished conditions (n = 20 animals per group) (all, P < 0.05). Relative to pasture-finished animals, the muscle of pen-finished animals displayed elevated glucose metabolites (~ 1.6-fold), triglycerides (~ 2-fold), markers of oxidative stress (~ 1.5-fold), and proteolysis (~ 1.2-fold). In contrast, pasture-finished animals displayed improved mitochondrial (~ 1.3-fold higher levels of various Krebs cycle metabolites) and carnitine metabolism (~ 3-fold higher levels of long-chain acyl carnitines) (all P < 0.05). Pasture-finishing also concentrated higher levels of phenolics (~ 2.3-fold), alpha-tocopherol (~ 5.8-fold), carotene (~ 2.0-fold), and very long-chain fatty acids (~ 1.3-fold) in their meat, while having lower levels of a common advanced lipoxidation (4-hydroxy-nonenal-glutathione; ~ 2-fold) and glycation end-product (N6-carboxymethyllysine; ~ 1.7-fold) (all P < 0.05). In contrast, vitamins B5, B6, and C, gamma/beta-tocopherol, and three phenolics commonly found in alfalfa were ~ 2.5-fold higher in pen-finished animals (all P < 0.05); suggesting some concentrate feeding, or grazing plants rich in those compounds, may be beneficial. CONCLUSIONS Pasture-finishing (i.e., grass-fed) broadly improves bison metabolic health and accumulates additional potential health-promoting compounds in their meat compared to concentrate finishing in confinement (i.e., pen-finished). Our data, however, does not indicate that meat from pen-finished bison is therefore unhealthy. The studied bison meat-irrespective of finishing practice-contained favorable omega 6:3 ratios (< 3.2), and amino acid and vitamin profiles. Our study represents one of the deepest meat profiling studies to date (> 1500 unique compounds), having revealed previously unrecognized differences in animal metabolic health and nutritional composition because of finishing mode. Whether observed nutritional differences have an appreciable effect on human health remains to be determined.
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Affiliation(s)
- Stephan van Vliet
- Center for Human Nutrition Studies, Department of Nutrition, Dietetics, and Food Sciences, College of Agriculture and Applied Sciences, Utah State University, Logan, UT, 84322, USA.
- Department of Wildland Resources, Utah State University, Logan, UT, 84332, USA.
| | - Amanda D Blair
- Department of Animal Science, South Dakota State University, Brookings, SD, 57707, USA
| | - Lydia M Hite
- Department of Animal Science, South Dakota State University, Brookings, SD, 57707, USA
| | - Jennifer Cloward
- Center for Human Nutrition Studies, Department of Nutrition, Dietetics, and Food Sciences, College of Agriculture and Applied Sciences, Utah State University, Logan, UT, 84322, USA
| | - Robert E Ward
- Center for Human Nutrition Studies, Department of Nutrition, Dietetics, and Food Sciences, College of Agriculture and Applied Sciences, Utah State University, Logan, UT, 84322, USA
| | - Carter Kruse
- Turner Institute of Ecoagriculture, Bozeman, MT, 59718, USA
| | | | | | - Scott L Kronberg
- Northern Great Plains Research Laboratory, USDA-Agricultural Research Service, Mandan, ND, 58554, USA
| | - Frederick D Provenza
- Department of Wildland Resources, Utah State University, Logan, UT, 84332, USA
- Northern Great Plains Research Laboratory, USDA-Agricultural Research Service, Mandan, ND, 58554, USA
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6
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Bułakowska A, Sławiński J, Hałasa R, Hering A, Gucwa M, Ochocka JR, Stefanowicz-Hajduk J. An In Vitro Antimicrobial, Anticancer and Antioxidant Activity of N–[(2–Arylmethylthio)phenylsulfonyl]cinnamamide Derivatives. Molecules 2023; 28:molecules28073087. [PMID: 37049849 PMCID: PMC10096175 DOI: 10.3390/molecules28073087] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Revised: 03/25/2023] [Accepted: 03/28/2023] [Indexed: 04/03/2023] Open
Abstract
Cinnamic acid is a plant metabolite with antimicrobial, anticancer, and antioxidant properties. Its synthetic derivatives are often more effective in vitro than parent compounds due to stronger biological activities. In our study, we synthesized ten new N–(4–chloro–2–mercapto–5–methylphenylsulfonyl)cinnamamide derivatives, containing two pharmacophore groups: cinnamic acid moiety and benzenesulfonamide. The antimicrobial activity of the obtained compounds was estimated using different types of Gram-positive and Gram-negative bacteria, fungus species of Candida albicans, as well as clinical strains. The compounds were evaluated on biofilm formation and biofilm formed by Staphylococcus clinical strains (methicillin–resistance S. aureus MRSA and methicillin–resistance coagulase–negative Staphylococcus MRCNS). Furthermore, blood bacteriostatic activity test was performed using S. aureus and S. epidermidis. In cytotoxic study, we performed in vitro hemolysis assay on domestic sheep peripheral blood and MTT [3–(4,5–dimethylthiazol–2–yl)–2,5–diphenyltetrazolium bromide] assay on human cervical HeLa, ovarian SKOV-3, and breast MCF-7 cancer cell lines. We also estimated antioxidant activity of ten compounds with 2,2-diphenyl-1-picrylhydrazyl (DPPH) and 2,2′–azino–bis(3–ethylbenzthiazoline–6–sulfonic acid) (ABTS) assays. Our results showed a significant antimicrobial activity of the compounds. All of them were active on Staphylococcus and Enterococcus species (MIC was 1–4 µg/mL). The compounds 16d and 16e were the most active on staphylococci clinical strains and efficiently inhibited the biofilm formation and biofilm already formed by the clinical staphylococci. Moreover, the hemolytic properties of the tested compounds occurred in higher quantities (>32.5 µg/mL) than the concentrations that inhibited both the growth of bacteria in the blood and the formation and growth of biofilm. The results of MTT assay showed that compounds 16c, 16d, 17a, and 17d demonstrated the best activity on the cancer cells (the IC50 values were below 10 µg/mL). Compound 16f was the least active on the cancer cells (IC50 was > 60 µg/mL). Antiradical tests revealed that compounds 16f and 17d had the strongest antioxidant properties within the tested group (IC50 was 310.50 ± 0.73 and 574.41 ± 1.34 µg/mL in DPPH, respectively, and 597.53 ± 1.3 and 419.18 ± 2.72 µg/mL in ABTS assay, respectively). Our study showed that the obtained cinnamamide derivatives can be used as potential antimicrobial therapeutic agents.
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Affiliation(s)
- Anita Bułakowska
- Department of Organic Chemistry, Medical University of Gdańsk, Al. Gen. J. Hallera 107, 80-416 Gdansk, Poland;
- Correspondence: (A.B.); (J.S.-H.)
| | - Jarosław Sławiński
- Department of Organic Chemistry, Medical University of Gdańsk, Al. Gen. J. Hallera 107, 80-416 Gdansk, Poland;
| | - Rafał Hałasa
- Department of Pharmaceutical Microbiology, Medical University of Gdańsk, Al. Gen. J. Hallera 107, 80-416 Gdansk, Poland;
| | - Anna Hering
- Department of Biology and Pharmaceutical Botany, Medical University of Gdańsk, Al. Gen. J. Hallera 107, 80-416 Gdansk, Poland; (A.H.); (M.G.); (J.R.O.)
| | - Magdalena Gucwa
- Department of Biology and Pharmaceutical Botany, Medical University of Gdańsk, Al. Gen. J. Hallera 107, 80-416 Gdansk, Poland; (A.H.); (M.G.); (J.R.O.)
| | - J. Renata Ochocka
- Department of Biology and Pharmaceutical Botany, Medical University of Gdańsk, Al. Gen. J. Hallera 107, 80-416 Gdansk, Poland; (A.H.); (M.G.); (J.R.O.)
| | - Justyna Stefanowicz-Hajduk
- Department of Biology and Pharmaceutical Botany, Medical University of Gdańsk, Al. Gen. J. Hallera 107, 80-416 Gdansk, Poland; (A.H.); (M.G.); (J.R.O.)
- Correspondence: (A.B.); (J.S.-H.)
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7
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Kaczmarek-Szczepańska B, Grabska-Zielińska S, Michalska-Sionkowska M. The Application of Phenolic Acids in The Obtainment of Packaging Materials Based on Polymers-A Review. Foods 2023; 12:foods12061343. [PMID: 36981267 PMCID: PMC10048273 DOI: 10.3390/foods12061343] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Revised: 03/15/2023] [Accepted: 03/20/2023] [Indexed: 03/30/2023] Open
Abstract
This article provides a summarization of present knowledge on the fabrication and characterization of polymeric food packaging materials that can be an alternative to synthetic ones. The review aimed to explore different studies related to the use of phenolic acids as cross-linkers, as well as bioactive additives, to the polymer-based materials upon their application as packaging. This article further discusses additives such as benzoic acid derivatives (sinapic acid, gallic acid, and ellagic acid) and cinnamic acid derivatives (p-coumaric acid, caffeic acid, and ferulic acid). These phenolic acids are mainly used as antibacterial, antifungal, and antioxidant agents. However, their presence also improves the physicochemical properties of materials based on polymers. Future perspectives in polymer food packaging are discussed.
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Affiliation(s)
- Beata Kaczmarek-Szczepańska
- Department of Biomaterials and Cosmetics Chemistry, Faculty of Chemistry, Nicolaus Copernicus University in Toruń, 87-100 Toruń, Poland
| | - Sylwia Grabska-Zielińska
- Department of Biomaterials and Cosmetics Chemistry, Faculty of Chemistry, Nicolaus Copernicus University in Toruń, 87-100 Toruń, Poland
| | - Marta Michalska-Sionkowska
- Department of Environmental Microbiology and Biotechnology, Faculty of Biological and Veterinary Sciences, Nicolaus Copernicus University in Toruń, 87-100 Toruń, Poland
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8
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Georgiou N, Gouleni N, Chontzopoulou E, Skoufas GS, Gkionis A, Tzeli D, Vassiliou S, Mavromoustakos T. Structure assignment, conformational properties and discovery of potential targets of the Ugi cinnamic adduct NGI25. J Biomol Struct Dyn 2023; 41:1253-1266. [PMID: 34963425 DOI: 10.1080/07391102.2021.2017356] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
The structure assignment and conformational analysis of cinnamic derivative N-benzyl-N-(2-(cyclohexylamino)-2-oxoethyl) cinnamamide (NGI25) was carried out through Nuclear Magnetic Resonance (NMR) spectroscopy, Molecular Dynamics (MD) and Quantum Mechanics (QM), i.e. semiempirical and Density Functional Theory (DFT) calculations. Moreover, Homonuclear (COSY, NOESY) and heteronuclear (HSQC, HMBC) experiments were applied to assign its protons and carbons. After structure identification, NGI25 was subjected to computational calculations to reveal its most favorable conformations. In particular, MD studies were performed in two different solvents, DMSO of intermediate polarity and hydrophobic CHCl3. The obtained results suggest that NGI25 adopts similar conformations in both environments. In particular, the two aromatic rings of the molecule reside in spatial vicinity, while they remain quite distant from the cyclohexane. 2D NOESY experiments confirmed the in silico MD and QM calculations. Finally, molecular docking calculations were performed in order to reveal possible enzyme-targets for NGI25. Swiss target module was used to guide the discovery of new targets based on the structure of NGI. Indeed, it was predicted that NGI25 inhibited butyrylcholinesterase (BCHE) and lipoxygenase (LOX). Molecular docking experiments, followed by Molecular Dynamics studies, confirmed the favorable binding of NGI25 to both enzymes.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Nikitas Georgiou
- Department of Chemistry, Laboratory of Organic Chemistry, National and Kapodistrian University of Athens, Athens, Greece
| | - Niki Gouleni
- Department of Chemistry, Laboratory of Organic Chemistry, National and Kapodistrian University of Athens, Athens, Greece
| | - Eleni Chontzopoulou
- Department of Chemistry, Laboratory of Organic Chemistry, National and Kapodistrian University of Athens, Athens, Greece
| | - George S Skoufas
- Department of Chemistry, Laboratory of Organic Chemistry, National and Kapodistrian University of Athens, Athens, Greece
| | - Anastasios Gkionis
- Department of Chemistry, Laboratory of Organic Chemistry, National and Kapodistrian University of Athens, Athens, Greece
| | - Demeter Tzeli
- Department of Chemistry, Laboratory of Physical Chemistry, National and Kapodistrian University of Athens, Athens, Greece.,Theoretical and Physical Chemistry Institute, National Hellenic Research Foundation, Athens, Greece
| | - Stamatia Vassiliou
- Department of Chemistry, Laboratory of Organic Chemistry, National and Kapodistrian University of Athens, Athens, Greece
| | - Thomas Mavromoustakos
- Department of Chemistry, Laboratory of Organic Chemistry, National and Kapodistrian University of Athens, Athens, Greece
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9
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Tsai MF, Huang SM, Huang HY, Tsai SW, Kuo CH, Shieh CJ. Ultrasound Plus Vacuum-System-Assisted Biocatalytic Synthesis of Octyl Cinnamate and Response Surface Methodology Optimization. Molecules 2022; 27:molecules27217148. [PMID: 36363974 PMCID: PMC9657652 DOI: 10.3390/molecules27217148] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2022] [Revised: 10/18/2022] [Accepted: 10/20/2022] [Indexed: 11/05/2022] Open
Abstract
Cinnamic acid is one of the phenolic compounds that is isolated from cinnamon, or other natural plants, and has a wide range of physiological activities. However, the application of cinnamic acid is limited due to its poor solubility and low oral bioavailability. In this study, the feasibility of producing octyl cinnamate by ultrasonic assistance, combined with a rotary evaporation under vacuum, was studied using methyl cinnamate and octanol as the starting materials. A Box–Behnken design (BBD) was employed to evaluate the effects of the operation parameters, including reaction temperature (55–75 °C), reaction time (4–12 h), and ultrasonic power (90–150 W) on the production of octyl cinnamate. Meanwhile, the synthesis process was further optimized by the modeling response surface methodology (RSM). The data indicated that octyl cinnamate was efficiently synthesized from methyl cinnamate and octanol using the ultrasound plus vacuum system; further, this system was superior to the conventional method. According to the RSM model for the actual experiments, a reaction temperature of 74.6 °C, a reaction time of 11.1 h, and an ultrasound power of 150 W were determined to be the best conditions for the maximum molar conversion of octyl cinnamate (93.8%). In conclusion, the highly efficient synthesis of octyl cinnamate by a rotary evaporator with an ultrasound plus vacuum system was achieved via RSM optimization.
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Affiliation(s)
- Ming-Fang Tsai
- Department of Food Science and Biotechnology, National Chung Hsing University, Taichung 402, Taiwan
- Biotechnology Center, National Chung Hsing University, Taichung 402, Taiwan
| | - Shang-Ming Huang
- Department of Nutrition, China Medical University, Taichung 406, Taiwan
| | - Hsin-Yi Huang
- Biotechnology Center, National Chung Hsing University, Taichung 402, Taiwan
| | - Shuo-Wen Tsai
- Department of Food Science and Biotechnology, National Chung Hsing University, Taichung 402, Taiwan
- Correspondence: (S.-W.T.); (C.-H.K.); (C.-J.S.)
| | - Chia-Hung Kuo
- Department of Seafood Science, National Kaohsiung University of Science and Technology, Kaohsiung 811, Taiwan
- Center for Aquatic Products Inspection Service, National Kaohsiung University of Science and Technology, Kaohsiung 811, Taiwan
- Correspondence: (S.-W.T.); (C.-H.K.); (C.-J.S.)
| | - Chwen-Jen Shieh
- Biotechnology Center, National Chung Hsing University, Taichung 402, Taiwan
- Correspondence: (S.-W.T.); (C.-H.K.); (C.-J.S.)
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10
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Li Z, Xu X, Wang Y, Kong L, Han C. Carrier-free nanoplatforms from natural plants for enhanced bioactivity. J Adv Res 2022:S2090-1232(22)00215-6. [PMID: 36208834 PMCID: PMC10403678 DOI: 10.1016/j.jare.2022.09.013] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2022] [Revised: 09/15/2022] [Accepted: 09/28/2022] [Indexed: 06/16/2023] Open
Abstract
BACKGROUND Natural plants as well as traditional Chinese medicine have made outstanding contributions to the health and reproduction of human beings and remain the basis and major resource for drug innovation. Carrier-free nanoplatforms completely self-assembled by pure molecules or therapeutic components have attracted increasing attention due to their advantages of improved pharmacodynamics/pharmacokinetics, reduced toxicity, and high drug loading. In recent years, carrier-free nanoplatforms produced by self-assembly from natural plants have contributed to progress in a variety of therapeutic modalities. Notably, these nanoplatforms based on the interactions of components from different natural plants improve efficiency and depress toxicity. AIM OF REVIEW In this review, different types of self-assembled nanoplatforms are first summarized, mainly including nanoassemblies of pure small molecules isolated from different plants, extracellular vesicles separated from fresh plants, charcoal nanocomponents obtained from charred plants, and nanoaggregates from plants formulae decoctions. Key Scientific Concepts of Review: We mainly focus on composition, self-assembly mechanisms, biological activity and modes of action. Finally, a future perspective of existing challenges with respect to the clinical application of plant-based carrier-free nanoplatforms is discussed, which may be instructive to further develop effective carrier-free nanoplatforms from natural plants in the future.
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Affiliation(s)
- Zhongrui Li
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Bioactive Natural Product Research, School of Traditional Chinese Pharmacy, China Pharmaceutical University, 24 Tong Jia Xiang, Nanjing 210009, PR China; Department of Medicinal Chemistry, School of Pharmacy, Nanjing Medical University, 101 longmian Avenue, Nanjing 211166, PR China
| | - Xiao Xu
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Bioactive Natural Product Research, School of Traditional Chinese Pharmacy, China Pharmaceutical University, 24 Tong Jia Xiang, Nanjing 210009, PR China
| | - Yun Wang
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Bioactive Natural Product Research, School of Traditional Chinese Pharmacy, China Pharmaceutical University, 24 Tong Jia Xiang, Nanjing 210009, PR China
| | - Lingyi Kong
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Bioactive Natural Product Research, School of Traditional Chinese Pharmacy, China Pharmaceutical University, 24 Tong Jia Xiang, Nanjing 210009, PR China.
| | - Chao Han
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Bioactive Natural Product Research, School of Traditional Chinese Pharmacy, China Pharmaceutical University, 24 Tong Jia Xiang, Nanjing 210009, PR China.
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11
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Georgiou N, Cheilari A, Karta D, Chontzopoulou E, Plavec J, Tzeli D, Vassiliou S, Mavromoustakos T. Conformational Properties and Putative Bioactive Targets for Novel Thiosemicarbazone Derivatives. Molecules 2022; 27:molecules27144548. [PMID: 35889421 PMCID: PMC9324535 DOI: 10.3390/molecules27144548] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Revised: 07/07/2022] [Accepted: 07/14/2022] [Indexed: 12/04/2022] Open
Abstract
The structure assignment and conformational analysis of the thiosemicarbazones, DKI21 and DKI24, were performed through homonuclear and heteronuclear 2D Nuclear Magnetic Resonance (NMR) spectroscopy (2D-COSY, 2D-NOESY, 2D-ROESY, 2D-HSQC, and 2D-HMBC) and quantum mechanics (QM) calculations, using Functional Density Theory (DFT). In addition, utilizing a combination of 2D-NOESY and 2D-ROESY spectra an exo structure was established for both of the analogs. This experimental results were confirmed by theoretical mechanistic studies, as the lowest minima conformations derived through DFT calculations were compatible with the spatial correlations observed in the 2D-NOESY and 2D-ROESY spectra. Finally, molecular binding experiments were performed to detect the potential targets for DKI21 and DKI24, derived from SwissAdme. In silico molecular binding experiments showed favorable binding energy values for the most of the enzymes studied. The ADMET calculations, using the preADMET and pKCSm software, showed that the two molecules appear as possible drug leads.
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Affiliation(s)
- Nikitas Georgiou
- Laboratory of Organic Chemistry, Department of Chemistry, National and Kapodistrian University of Athens, Panepistimioupolis Zografou, 11571 Athens, Greece; (N.G.); (D.K.); (E.C.)
| | - Antigoni Cheilari
- Department of Pharmacognosy and Natural Products Chemistry, Faculty of Pharmacy, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, 15771 Athens, Greece;
| | - Danai Karta
- Laboratory of Organic Chemistry, Department of Chemistry, National and Kapodistrian University of Athens, Panepistimioupolis Zografou, 11571 Athens, Greece; (N.G.); (D.K.); (E.C.)
| | - Eleni Chontzopoulou
- Laboratory of Organic Chemistry, Department of Chemistry, National and Kapodistrian University of Athens, Panepistimioupolis Zografou, 11571 Athens, Greece; (N.G.); (D.K.); (E.C.)
| | - Janez Plavec
- Slovenian NMR Centre, National Institute of Chemistry, SI-1001 Ljubljana, Slovenia;
| | - Demeter Tzeli
- Laboratory of Physical Chemistry, Department of Chemistry, National and Kapodistrian University of Athens, Panepistimioupolis Zografou, 11571 Athens, Greece;
- Theoretical and Physical Chemistry Institute, National Hellenic Research Foundation, 48 Vassileos Constantinou Ave., 11635 Athens, Greece
| | - Stamatia Vassiliou
- Laboratory of Organic Chemistry, Department of Chemistry, National and Kapodistrian University of Athens, Panepistimioupolis Zografou, 11571 Athens, Greece; (N.G.); (D.K.); (E.C.)
- Correspondence: (S.V.); (T.M.)
| | - Thomas Mavromoustakos
- Laboratory of Organic Chemistry, Department of Chemistry, National and Kapodistrian University of Athens, Panepistimioupolis Zografou, 11571 Athens, Greece; (N.G.); (D.K.); (E.C.)
- Correspondence: (S.V.); (T.M.)
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12
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(E)-1-(3-Benzoyl-4-phenyl-1H-pyrrol-1-yl)-3-phenylprop-2-en-1-one. MOLBANK 2022. [DOI: 10.3390/m1314] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Over the last decade, there has been an increasing effort to fight inflammatory conditions establishing new multitarget approaches. Chronic inflammation is implicated in many multifactorial diseases, constituting a great economic burden and a chronic health problem. In an attempt to develop new potent multifunctional anti-inflammatory agents, a cinnamic-pyrrole hybrid (6) was synthesized and screened for its antioxidant and anti-Lipoxygenase potential. The new compound, in comparison with its pyrrole precursor (4), showed improved biological activities. In silico calculations were performed to predict its drug-likeness. The examined derivative is considered orally bioavailable according to Lipinski’s rule of five. Compound 6 could be used as a lead for the synthesis of more effective hybrids.
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13
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Intensified green-based extraction process as a circular economy approach to recover bioactive compounds from soursop seeds ( Annona muricata L.). Food Chem X 2021; 12:100164. [PMID: 35024607 PMCID: PMC8724856 DOI: 10.1016/j.fochx.2021.100164] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2021] [Revised: 11/12/2021] [Accepted: 11/13/2021] [Indexed: 12/11/2022] Open
Abstract
SFE and SWE in single or combined mode allow extraction of value-added compounds. SFE modifies the cell wall, and the oil fraction is rich in fatty acids. PCA is used to correlate phenolic compounds with extraction methods. Vanillic acid is the major phenolic compound quantified in all extracts. First report of detection of 29 new phenolic compounds from soursop seed extracts.
Soursop (Annona muricata L.) seeds, which is a residue obtained from juice agro-industries, were subjected to supercritical fluid extraction (SFE) and subcritical water extraction (SWE) in single or combined mode to extract the potential value-added compounds. Different extraction methods were evaluated in terms of the extraction yield, phenolics content, antioxidant activity (DPPH, ABTS, and FRAP), and Maillard reaction products. The extracts were analyzed using SEM, GC-MS, and LC-MS/MS techniques. The temperature and a combination of high-pressure techniques positively affected the overall results (SFE + SWE), affording nonpolar and polar extracts rich in phenolics and antioxidant compounds. SEM analysis showed that the use of SFE caused modifications in the cell wall, and the oil fraction was rich in fatty acids. Twenty-nine compounds associated with soursop seed extracts were detected for the first time using LC-MS/MS, showing the potential of the raw material as well as promoting resource re-utilization in circular economy.
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14
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Tsopka IC, Hadjipavlou-Litina D. Hybrids as NO Donors. Int J Mol Sci 2021; 22:9788. [PMID: 34575950 PMCID: PMC8469192 DOI: 10.3390/ijms22189788] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Revised: 09/08/2021] [Accepted: 09/08/2021] [Indexed: 11/16/2022] Open
Abstract
Cinnamic acid and its derivatives have been studied for a variety of biological properties, including anti-inflammatory, antioxidant, anticancer, antihypertensive, and antibacterial. Many hybrids of cinnamic derivatives with other bioactive molecules have been synthesized and evaluated as nitric oxide (NO) donors. Since NO plays a significant role in various biological processes, including vasodilation, inflammation, and neurotransmission, NO donor groups are incorporated into the structures of already-known bioactive molecules to enhance their biological properties. In this review, we present cinnamic hybrids with NO-donating ability useful in the treatment of several diseases.
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Affiliation(s)
| | - Dimitra Hadjipavlou-Litina
- Department of Pharmaceutical Chemistry, School of Pharmacy, Faculty of Health Sciences, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece;
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15
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Wongso H. Natural product-based Radiopharmaceuticals:Focus on curcumin and its analogs, flavonoids, and marine peptides. J Pharm Anal 2021; 12:380-393. [PMID: 35811617 PMCID: PMC9257450 DOI: 10.1016/j.jpha.2021.07.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2020] [Revised: 05/19/2021] [Accepted: 07/19/2021] [Indexed: 02/07/2023] Open
Abstract
Natural products provide a bountiful supply of pharmacologically relevant precursors for the development of various drug-related molecules, including radiopharmaceuticals. However, current knowledge regarding the importance of natural products in developing new radiopharmaceuticals remains limited. To date, several radionuclides, including gallium-68, technetium-99m, fluorine-18, iodine-131, and iodine-125, have been extensively studied for the synthesis of diagnostic and therapeutic radiopharmaceuticals. The availability of various radiolabeling methods allows the incorporation of these radionuclides into bioactive molecules in a practical and efficient manner. Of the radiolabeling methods, direct radioiodination, radiometal complexation, and halogenation are generally suitable for natural products owing to their simplicity and robustness. This review highlights the pharmacological benefits of curcumin and its analogs, flavonoids, and marine peptides in treating human pathologies and provides a perspective on the potential use of these bioactive compounds as molecular templates for the design and development of new radiopharmaceuticals. Additionally, this review provides insights into the current strategies for labeling natural products with various radionuclides using either direct or indirect methods. Potential use of natural products for the development of diagnostic and therapeutic radiopharmaceuticals. Profile of potential natural products as molecular templates for the synthesis of new radiopharmaceuticals: Focus on curcumin and its closely related substances, flavonoids, and marine peptides. Radiolabeling strategies, challenges, and examples of natural product-based radiopharmaceuticals under investigation.
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16
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2-((4-((E)-1-(Hydroxyimino)ethyl)phenyl)amino)-2-oxoethyl Cinnamate. MOLBANK 2021. [DOI: 10.3390/m1239] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Cinnamic acid-nitric oxide (NO) donor hybrids have attracted attention, in recent years, as new pharmacological agents to treat multifactorial diseases. In the present study, hybrid oxime 5 was synthesized and its anti-lipid peroxidation and anti-lipoxygenase activities were evaluated. The new compound showed remarkable anti-LOX activity, while its antioxidant activity was quite good in comparison to the appropriate reference compounds. The examined derivative seems to be orally active in accordance to Lipinski’s rule of five. Compound 5 can be considered as a leading structure for the design and synthesis of new hybrids.
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17
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Scheiner M, Hoffmann M, He F, Poeta E, Chatonnet A, Monti B, Maurice T, Decker M. Selective Pseudo-irreversible Butyrylcholinesterase Inhibitors Transferring Antioxidant Moieties to the Enzyme Show Pronounced Neuroprotective Efficacy In Vitro and In Vivo in an Alzheimer's Disease Mouse Model. J Med Chem 2021; 64:9302-9320. [PMID: 34152756 DOI: 10.1021/acs.jmedchem.1c00534] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
A series of multitarget-directed ligands (MTDLs) was designed by functionalizing a pseudo-irreversible butyrylcholinesterase (BChE) inhibitor. The obtained hybrids were investigated in vitro regarding their hBChE and hAChE inhibition, their enzyme kinetics, and their antioxidant physicochemical properties (DPPH, ORAC, metal chelating). In addition, in vitro assays were applied to investigate antioxidant effects using murine hippocampal HT22 cells and immunomodulatory effects on the murine microglial N9 cell line. The MTDLs retained their antioxidative properties compared to the parent antioxidant-moieties in vitro and the inhibition of hBChE was maintained in the submicromolar range. Representative compounds were tested in a pharmacological Alzheimer's disease (AD) mouse model and demonstrated very high efficacy at doses as low as 0.1 mg/kg. The most promising compound was also tested in BChE-/- mice and showed reduced efficacy. In vivo neuroprotection by BChE inhibition can be effectively enhanced by incorporation of structurally diverse antioxidant moieties.
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Affiliation(s)
- Matthias Scheiner
- Pharmaceutical and Medicinal Chemistry, Institute of Pharmacy and Food Chemistry, Julius Maximilian University of Würzburg, Am Hubland, 97074 Würzburg, Germany
| | - Matthias Hoffmann
- Pharmaceutical and Medicinal Chemistry, Institute of Pharmacy and Food Chemistry, Julius Maximilian University of Würzburg, Am Hubland, 97074 Würzburg, Germany
| | - Feng He
- Pharmaceutical and Medicinal Chemistry, Institute of Pharmacy and Food Chemistry, Julius Maximilian University of Würzburg, Am Hubland, 97074 Würzburg, Germany
| | - Eleonora Poeta
- Department of Pharmacy and Biotechnology, University of Bologna, Via Selmi 3, 40126 Bologna, Italy
| | - Arnaud Chatonnet
- DMEM, University of Montpellier, INRAE, 34060 Montpellier, France
| | - Barbara Monti
- Department of Pharmacy and Biotechnology, University of Bologna, Via Selmi 3, 40126 Bologna, Italy
| | - Tangui Maurice
- MMDN, University of Montpellier, INSERM, EPHE, 34095 Montpellier, France
| | - Michael Decker
- Pharmaceutical and Medicinal Chemistry, Institute of Pharmacy and Food Chemistry, Julius Maximilian University of Würzburg, Am Hubland, 97074 Würzburg, Germany
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18
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Myeloperoxidase Inhibitory and Antioxidant Activities of ( E)-2-Hydroxy-α-aminocinnamic Acids Obtained through Microwave-Assisted Synthesis. Pharmaceuticals (Basel) 2021; 14:ph14060513. [PMID: 34071735 PMCID: PMC8229396 DOI: 10.3390/ph14060513] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Revised: 05/07/2021] [Accepted: 05/11/2021] [Indexed: 01/15/2023] Open
Abstract
Myeloperoxidase (MPO) is an enzyme present in human neutrophils, whose main role is to provide defenses against invading pathogens. However, highly reactive oxygen species (ROS), such as HOCl, are generated from MPO activity, leading to chronic diseases. Herein, we report the microwave-assisted synthesis of a new series of stable (E)-(2-hydroxy)-α-aminocinnamic acids, in good yields, which are structurally analogous to the natural products (Z)-2-hydroxycinnamic acids. The radical scavenging activity (RSA), MPO inhibitory activity and cytotoxicity of the reported compounds were evaluated. The hydroxy derivatives showed the most potent RSA, reducing the presence of DPPH and ABTS radicals by 77% at 0.32 mM and 100% at 0.04 mM, respectively. Their mechanism of action was modeled with BDEOH, IP and ΔEH-L theoretical calculations at the B3LYP/6 − 31 + G(d,p) level. Compounds showed in vitro inhibitory activity of MPO with IC50 values comparable to indomethacin and 5-ASA, but cytotoxicities below 15% at 100–200 µM. Docking calculations revealed that they reach the amino acid residues present in the distal cavity of the MPO active site, where both the amino and carboxylic acid groups of the α-aminopropenoic acid arm are structural requirements for anchoring. (E)-2-hydroxy-α-aminocinnamic acids have been synthesized for the first time with a reliable method and their antioxidant properties demonstrated.
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19
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El-Tablawy NH, Mansour HA, Shaaban AESM. Antioxidant activities of some edaphic algae in Egypt. BENI-SUEF UNIVERSITY JOURNAL OF BASIC AND APPLIED SCIENCES 2020. [DOI: 10.1186/s43088-020-00060-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Abstract
Background
Algae in general characterized by their rich content of biological compounds. However, few studies were conducted on the soil-inhabiting algae and their antioxidant characteristics.
Results
The present study was designed to evaluate the antioxidant activity of four edaphic algae including one on-soil alga (Vaucheria geminata) and three axenic isolated in-soil algae (Pleurochloris pyrenoidosa, Botrydiopsis eriensis, and Scenedesmus obliquus). Total antioxidant activity by Phosphomolybdenum assay ranged from 6.66 to 36.33 mg of Asc/g dwt; meanwhile, the percentage inhibition of DPPH radical was up to 97.37%. Antioxidant activity of each alga was assessed also by measuring their contents of total phenols, flavonoids, and pigments (chlorophyll a and carotenoids). B. eriensis and S. obliquus recorded the highest levels of phenols, flavonoids, and chlorophyll a followed by P. pyrenoidosa and V. geminata, while B. eriensis showed the highest carotenoids content. Moreover, about seven types of each phenol and flavonoid compound were identified by HPLC chromatography in the four algae under investigation. The most common detected phenols were gallic, chlorogenic, caffeic, and ferulic, while rutin, quercetin, apigenin, and quercitrin were the most abundant flavonoids among all algae under investigation.
Conclusion
All the tested algae were characterized with high antioxidant activities besides the rich contents of compounds with antioxidant properties which recommend their further potential using in nutritional, pharmaceutical, and medicinal implications.
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20
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Li XN, Hua LX, Zhou TS, Wang KB, Wu YY, Emam M, Bao XZ, Chen J, Wei B. Cinnamic acid derivatives: inhibitory activity against Escherichia coli β-glucuronidase and structure-activity relationships. J Enzyme Inhib Med Chem 2020; 35:1372-1378. [PMID: 32571102 PMCID: PMC7717682 DOI: 10.1080/14756366.2020.1780225] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Revised: 04/24/2020] [Accepted: 05/26/2020] [Indexed: 01/27/2023] Open
Abstract
Gut microbial β-glucuronidase (GUS) is a potential therapeutic target to reduce gastrointestinal toxicity caused by irinotecan. In this study, the inhibitory effects of 17 natural cinnamic acid derivatives on Escherichia coli GUS (EcGUS) were characterised. Seven compounds, including caffeic acid ethyl ester (CAEE), had a stronger inhibitory effect (IC50 = 3.2-22.2 µM) on EcGUS than the positive control, D-glucaric acid-1,4-lactone. Inhibition kinetic analysis revealed that CAEE acted as a competitive inhibitor. The results of molecular docking analysis suggested that CAEE bound to the active site of EcGUS through interactions with Asp163, Tyr468, and Glu504. In addition, structure-activity relationship analysis revealed that the presence of a hydrogen atom at R1 and bulky groups at R9 in cinnamic acid derivatives was essential for EcGUS inhibition. These data are useful to design more potent cinnamic acid-type inhibitors of EcGUS.
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Affiliation(s)
- Xing-Nuo Li
- College of Pharmaceutical Science & Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, Hangzhou, P. R. China
| | - Lu-Xia Hua
- College of Pharmaceutical Science & Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, Hangzhou, P. R. China
| | - Tao-Shun Zhou
- College of Pharmaceutical Science & Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, Hangzhou, P. R. China
| | - Ke-Bo Wang
- College of Pharmaceutical Science & Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, Hangzhou, P. R. China
| | - Yuan-Yuan Wu
- College of Pharmaceutical Science & Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, Hangzhou, P. R. China
| | - Mahmoud Emam
- College of Pharmaceutical Science & Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, Hangzhou, P. R. China
- Shanghai Hadal Biomedical Engineering Co., Ltd, Shanghai, P. R. China
- Department of Phytochemistry and Plant Systematics, National Research Centre, Giza, Egypt
| | - Xiao-Ze Bao
- College of Pharmaceutical Science & Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, Hangzhou, P. R. China
| | - Jun Chen
- Shanghai Hadal Biomedical Engineering Co., Ltd, Shanghai, P. R. China
| | - Bin Wei
- College of Pharmaceutical Science & Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, Hangzhou, P. R. China
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21
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Chainoglou E, Siskos A, Pontiki E, Hadjipavlou-Litina D. Hybridization of Curcumin Analogues with Cinnamic Acid Derivatives as Multi-Target Agents Against Alzheimer's Disease Targets. Molecules 2020; 25:E4958. [PMID: 33114751 PMCID: PMC7662280 DOI: 10.3390/molecules25214958] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2020] [Revised: 10/19/2020] [Accepted: 10/20/2020] [Indexed: 12/13/2022] Open
Abstract
The synthesis of the new hybrids followed a hybridization with the aid of hydroxy-benzotriazole (HOBT) and 1-Ethyl-3-(3-dimethylaminopropyl)carbodiimide (EDCI.HCL) in dry DMF or thionyl chloride between curcumin analogues and cinnamic acid derivatives. IR, 1H-NMR, 13C-NMR, LC/MS ESI+, and elemental analysis were used for the confirmation of the structures of the novel hybrids. The lipophilicity values of compounds were calculated theoretically and experimentally via the reversed chromatography method as RM values. The novel derivatives were studied through in vitro experiments for their activity as antioxidant agents and as inhibitors of lipoxygenase, cyclooxygenase-2, and acetyl-cholinesterase. All the compounds showed satisfying anti-lipid peroxidation activity of linoleic acid induced by 2,2'-azobis(2-amidinopropane) hydrochloride (AAPH). Hybrid 3e was the most significant pleiotropic derivative, followed by 3a. According to the predicted results, all hybrids could be easily transported, diffused, and absorbed through the blood-brain barrier (BBB). They presented good oral bioavailability and very high absorption with the exception of 3h. No inhibition for CYP1A2, CYP2C9, CYP2C19, CYP2D6, and CYP3A4 was noticed. According to the Ames test, all the hybrids induced mutagenicity with the exception of 3d. Efforts were conducted a) to correlate the in vitro results with the most important physicochemical properties of the structural components of the molecules and b) to clarify the correlation of actions among them to propose a possible mechanism of action. Docking studies were performed on soybean lipoxygenase (LOX) and showed hydrophobic interactions with amino acids. Docking studies on acetylcholinesterase (AChE) exhibited: (a) hydrophobic interactions with TRP281, LEU282, TYR332, PHE333, and TYR336 and (b) π-stacking interactions with TYR336.
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Affiliation(s)
| | | | | | - Dimitra Hadjipavlou-Litina
- Department of Pharmaceutical Chemistry, School of Pharmacy, Faculty of Health Sciences, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (E.C.); (A.S.); (E.P.)
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A Template-Based Approach for Guiding and Refining the Development of Cinnamon-Based Phenylpropanoids as Drugs. Molecules 2020; 25:molecules25204629. [PMID: 33050677 PMCID: PMC7587175 DOI: 10.3390/molecules25204629] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2020] [Revised: 10/06/2020] [Accepted: 10/09/2020] [Indexed: 11/17/2022] Open
Abstract
Background: Structure-activity relationships describe the relationship between chemical structure and biologic activity and are capable of informing deliberate structural modifications to a molecule in order enhance drug properties. Methods: Here, we present a subtle, yet unique twist on structure-activity relationships in which a collective biologic activity was measured among five cinnamon constituents with a shared phenylpropanoid template (cinnamic acid, cinnamaldehyde, chlorogenic acid, caffeic acid, and ferulic acid). This template-based approach utilized publicly available transcriptomic data through the Gene Expression Omnibus (GEO) to identify a fundamental biologic effect; in essence, a phenylpropanoid template effect. Results: The recurrent identification of cytokine-cytokine receptor interaction and neuroactive ligand receptor pathways in each individual treatment condition strongly supports the fact that changes in gene expression within these pathways is a hallmark of the phenylpropanoid template. With a template effect identified, future structural modifications can be performed in order to overcome pharmacokinetic barriers to clinical use (i.e., traditional structure-activity relationship experiments). Moreover, these modifications can be implemented with a high degree of confidence knowing that a consistent and robust template effect is likely to persist. Conclusion: We believe this template-based approach offers researchers an attractive and cost-effective means for evaluating multicomponent natural products during drug development.
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da Silva Mesquita R, Kyrylchuk A, Costa de Oliveira R, Costa Sá IS, Coutinho Borges Camargo G, Soares Pontes G, Moura Araújo da Silva F, Saraiva Nunomura RDC, Grafov A. Alkaloids of Abuta panurensis Eichler: In silico and in vitro study of acetylcholinesterase inhibition, cytotoxic and immunomodulatory activities. PLoS One 2020; 15:e0239364. [PMID: 32991579 PMCID: PMC7523975 DOI: 10.1371/journal.pone.0239364] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2020] [Accepted: 09/07/2020] [Indexed: 12/19/2022] Open
Abstract
Natural products obtained from species of the genus Abuta (Menispermaceae) are known as ethnobotanicals that are attracting increasing attention due to a wide range of their pharmacological properties. In this study, the alkaloids stepharine and 5-N-methylmaytenine were first isolated from branches of Abuta panurensis Eichler, an endemic species from the Amazonian rainforest. Structure of the compounds was elucidated by a combination of 1D and 2D NMR spectroscopic and MS and HRMS spectrometric techniques. Interaction of the above-mentioned alkaloids with acetylcholinesterase enzyme and interleukins IL-6 and IL-8 was investigated in silico by molecular docking. The molecules under investigation were able to bind effectively with the active sites of the AChE enzyme, IL-6, and IL-8 showing affinity towards the proteins. Along with the theoretical study, acetylcholinesterase enzyme inhibition, cytotoxic, and immunomodulatory activity of the compounds were assessed by in vitro assays. The data obtained in silico corroborate the results of AChE enzyme inhibition, the IC50 values of 61.24μM for stepharine and 19.55μM for 5-N-methylmaytenine were found. The compounds showed cytotoxic activity against two tumor cell lines (K562 and U937) with IC50 values ranging from 11.77 μM to 28.48 μM. The in vitro assays revealed that both alkaloids were non-toxic to Vero and human PBMC cells. As for the immunomodulatory activity, both compounds inhibited the production of IL-6 at similar levels. Stepharine inhibited considerably the production of IL-8 in comparison to 5-N-methylmaytenine, which showed a dose dependent action (inhibitory at the IC50 dose, and stimulatory at the twofold IC50 one). Such a behavior may possibly be explained by different binding modes of the alkaloids to the interleukin structural fragments. Occurrence of the polyamine alkaloid 5-N-methylmaytenine was reported for the first time for the Menispermaceae family, as well as the presence of stepharine in A. panurensis.
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Affiliation(s)
| | - Andrii Kyrylchuk
- Institute of Organic Chemistry, National Academy of Sciences (NAS), Kyiv, Ukraine
| | - Regiane Costa de Oliveira
- Post-Graduate Program in Hematology, University of the State of Amazonas (UEA), Manaus, Amazonas, Brazil
| | | | | | - Gemilson Soares Pontes
- Post-Graduate Program in Hematology, University of the State of Amazonas (UEA), Manaus, Amazonas, Brazil
- Laboratory of Virology, National Institute of Amazonian Research (INPA), Manaus, Amazonas, Brazil
| | - Felipe Moura Araújo da Silva
- Analytical Center –Multidisciplinary Support Center (CAM), Federal University of Amazonas (UFAM), Manaus, Amazonas, Brazil
| | | | - Andriy Grafov
- Department of Chemistry, University of Helsinki, Helsinki, Finland
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Kos J, Bak A, Kozik V, Jankech T, Strharsky T, Swietlicka A, Michnova H, Hosek J, Smolinski A, Oravec M, Devinsky F, Hutta M, Jampilek J. Biological Activities and ADMET-Related Properties of Novel Set of Cinnamanilides. Molecules 2020; 25:molecules25184121. [PMID: 32916979 PMCID: PMC7570544 DOI: 10.3390/molecules25184121] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Revised: 09/03/2020] [Accepted: 09/08/2020] [Indexed: 12/12/2022] Open
Abstract
A series of nineteen novel ring-substituted N-arylcinnamanilides was synthesized and characterized. All investigated compounds were tested against Staphylococcus aureus as the reference strain, two clinical isolates of methicillin-resistant S. aureus (MRSA), and Mycobacterium tuberculosis. (2E)-N-[3-Fluoro-4-(trifluoromethyl)phenyl]-3-phenylprop-2-enamide showed even better activity (minimum inhibitory concentration (MIC) 25.9 and 12.9 µM) against MRSA isolates than the commonly used ampicillin (MIC 45.8 µM). The screening of the cell viability was performed using THP1-Blue™ NF-κB cells and, except for (2E)-N-(4-bromo-3-chlorophenyl)-3-phenylprop-2-enamide (IC50 6.5 µM), none of the discussed compounds showed any significant cytotoxic effect up to 20 μM. Moreover, all compounds were tested for their anti-inflammatory potential; several compounds attenuated the lipopolysaccharide-induced NF-κB activation and were more potent than the parental cinnamic acid. The lipophilicity values were specified experimentally as well. In addition, in silico approximation of the lipophilicity values was performed employing a set of free/commercial clogP estimators, corrected afterwards by the corresponding pKa calculated at physiological pH and subsequently cross-compared with the experimental parameters. The similarity-driven property space evaluation of structural analogs was carried out using the principal component analysis, Tanimoto metrics, and Kohonen mapping.
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Affiliation(s)
- Jiri Kos
- Regional Centre of Advanced Technologies and Materials, Faculty of Science, Palacky University, Slechtitelu 27, 78371 Olomouc, Czech Republic; (J.K.); (T.S.); (H.M.); (J.H.)
| | - Andrzej Bak
- Department of Chemistry, University of Silesia, Szkolna 9, 40007 Katowice, Poland; (V.K.); (A.S.)
- Correspondence: (A.B.); (J.J.)
| | - Violetta Kozik
- Department of Chemistry, University of Silesia, Szkolna 9, 40007 Katowice, Poland; (V.K.); (A.S.)
| | - Timotej Jankech
- Department of Analytical Chemistry, Faculty of Natural Sciences, Comenius University, Ilkovicova 6, 84215 Bratislava, Slovakia; (T.J.); (M.H.)
| | - Tomas Strharsky
- Regional Centre of Advanced Technologies and Materials, Faculty of Science, Palacky University, Slechtitelu 27, 78371 Olomouc, Czech Republic; (J.K.); (T.S.); (H.M.); (J.H.)
| | - Aleksandra Swietlicka
- Department of Chemistry, University of Silesia, Szkolna 9, 40007 Katowice, Poland; (V.K.); (A.S.)
| | - Hana Michnova
- Regional Centre of Advanced Technologies and Materials, Faculty of Science, Palacky University, Slechtitelu 27, 78371 Olomouc, Czech Republic; (J.K.); (T.S.); (H.M.); (J.H.)
| | - Jan Hosek
- Regional Centre of Advanced Technologies and Materials, Faculty of Science, Palacky University, Slechtitelu 27, 78371 Olomouc, Czech Republic; (J.K.); (T.S.); (H.M.); (J.H.)
| | - Adam Smolinski
- Central Mining Institute, Pl. Gwarkow 1, 40166 Katowice, Poland;
| | - Michal Oravec
- Global Change Research Institute CAS, Belidla 986/4a, 60300 Brno, Czech Republic;
| | - Ferdinand Devinsky
- Faculty of Pharmacy, Comenius University, Odbojarov 10, 83232 Bratislava, Slovakia;
| | - Milan Hutta
- Department of Analytical Chemistry, Faculty of Natural Sciences, Comenius University, Ilkovicova 6, 84215 Bratislava, Slovakia; (T.J.); (M.H.)
| | - Josef Jampilek
- Department of Analytical Chemistry, Faculty of Natural Sciences, Comenius University, Ilkovicova 6, 84215 Bratislava, Slovakia; (T.J.); (M.H.)
- Correspondence: (A.B.); (J.J.)
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Chen Y, Li X, Mamouni K, Yang Y, Danaher A, White J, Liu H, Kucuk O, Gera L, Wu D. Novel small-molecule LG1836 inhibits the in vivo growth of castration-resistant prostate cancer. Prostate 2020; 80:993-1005. [PMID: 32559345 DOI: 10.1002/pros.24032] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/14/2019] [Accepted: 06/08/2020] [Indexed: 12/25/2022]
Abstract
BACKGROUND Androgen deprivation therapy (ADT) is the mainstay of treatment for castration-resistant prostate cancer (CRPC). Unfortunately, although ADT initially prolongs survival, most patients relapse and develop resistance. Clinical failure of these treatments in CRPC highlights the urgent need to develop novel strategies to more effectively block androgen receptor (AR) signaling and target other oncogenic factors responsible for ADT resistance. METHODS We developed a small-molecule compound LG1836 and investigated the in vitro and in vivo activity of LG1836 against CRPC in cellular and animal models. RESULTS LG1836 exhibits potent in vitro cytotoxicity in CRPC cells. Mechanistic studies demonstrated that LG1836 inhibits the expression of AR and AR variant 7, partially mediated via proteasome-dependent protein degradation. LG1836 also suppresses survivin expression and effectively induces apoptosis in CRPC cells. Significantly, as a single agent, LG1836 is therapeutically efficacious in suppressing the in vivo growth of CRPC in the subcutaneous and intraosseous models and extends the survival of tumor-bearing mice. CONCLUSIONS These preclinical studies indicate that LG1836 is a promising lead compound for the treatment of CRPC.
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Affiliation(s)
- Yanhua Chen
- Department of Hand Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Department of Biochemistry and Molecular Biology, Molecular Oncology and Biomarkers Program, Georgia Cancer Center, Medical College of Georgia, Augusta University, Augusta, Georgia
| | - Xin Li
- Department of Biochemistry and Molecular Biology, Molecular Oncology and Biomarkers Program, Georgia Cancer Center, Medical College of Georgia, Augusta University, Augusta, Georgia
- Center for Cancer Research and Therapeutic Development and Department of Biological Sciences, Clark Atlanta University, Atlanta, Georgia
| | - Kenza Mamouni
- Department of Biochemistry and Molecular Biology, Molecular Oncology and Biomarkers Program, Georgia Cancer Center, Medical College of Georgia, Augusta University, Augusta, Georgia
| | - Yang Yang
- Department of Biochemistry and Molecular Biology, Molecular Oncology and Biomarkers Program, Georgia Cancer Center, Medical College of Georgia, Augusta University, Augusta, Georgia
- Department of Otorhinolaryngology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Alira Danaher
- Center for Cancer Research and Therapeutic Development and Department of Biological Sciences, Clark Atlanta University, Atlanta, Georgia
| | - Joseph White
- Department of Pathology, Medical College of Georgia, Augusta University, Augusta, Georgia
| | - HongYan Liu
- Dotquant LLC, CoMotion Labs at University of Washington, Seattle, Washington
| | - Omer Kucuk
- Department of Hematology and Medical Oncology, Winship Cancer Institute, Emory University School of Medicine, Atlanta, Georgia
- Department of Urology, Emory University School of Medicine, Atlanta, Georgia
| | - Lajos Gera
- Department of Biochemistry and Molecular Genetics, Anschutz Medical Campus, School of Medicine, University of Colorado Denver, Aurora, Colorado
| | - Daqing Wu
- Department of Biochemistry and Molecular Biology, Molecular Oncology and Biomarkers Program, Georgia Cancer Center, Medical College of Georgia, Augusta University, Augusta, Georgia
- Center for Cancer Research and Therapeutic Development and Department of Biological Sciences, Clark Atlanta University, Atlanta, Georgia
- Department of Urology, Emory University School of Medicine, Atlanta, Georgia
- MetCure Therapeutics LLC, Atlanta, Georgia
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5-(4 H)-Oxazolones and Their Benzamides as Potential Bioactive Small Molecules. Molecules 2020; 25:molecules25143173. [PMID: 32664550 PMCID: PMC7397336 DOI: 10.3390/molecules25143173] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Revised: 07/09/2020] [Accepted: 07/10/2020] [Indexed: 11/21/2022] Open
Abstract
The five membered heterocyclic oxazole group plays an important role in drug discovery. Oxazolones present a wide range of biological activities. In this article the synthesis of 4-substituted-2-phenyloxazol-5(4H)-ones from the appropriate substituted aldehydes via an Erlenmeyer–Plochl reaction is reported. Subsequently, the corresponding benzamides were produced via a nucleophilic attack of a secondary amine on the oxazolone ring applying microwave irradiation. The compounds are obtained in good yields up to 94% and their structures were confirmed using IR, 1H-NMR, 13C-NMR and LC/MS data. The in vitro anti-lipid peroxidation activity and inhibitory activity against lipoxygenase and trypsin induced proteolysis of the novel derivatives were studied. Inhibition of carrageenin-induced paw edema (CPE) and nociception was also determined for compounds 4a and 4c. Oxazolones 2a and 2c strongly inhibit lipid peroxidation, followed by oxazolones 2b and 2d with an average inhibition of 86.5%. The most potent lipoxygenase inhibitor was the bisbenzamide derivative 4c, with IC50 41 μM. The benzamides 3c, 4a–4e and 5c were strong inhibitors of proteolysis. The replacement of the thienyl moiety by a phenyl group does not favor the protection. Compound 4c inhibited nociception higher than 4a. The replacement of thienyl groups by phenyl ring led to reduced biological activity. Docking studies of the most potent LOX inhibitor highlight interactions through allosteric mechanism. All the potent derivatives present good oral bioavailability.
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MOHAMMED FS, GÜNAL S, PEHLİVAN M, DOĞAN M, SEVİNDİK M, AKGÜL H. Phenolic Content, Antioxidant and Antimicrobial Potential of Endemic Ferulago platycarpa. GAZI UNIVERSITY JOURNAL OF SCIENCE 2020. [DOI: 10.35378/gujs.707555] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Fotopoulos I, Pontiki E, Litina DH. Targeting Inflammation with Conjugated Cinnamic Amides, Ethers and Esters. LETT DRUG DES DISCOV 2019. [DOI: 10.2174/1570180816666181129125511] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Background:
Cinnamic acid is a key intermediate in shikimate and phenylpropanoid
pathways. It is found both in free form, and especially in the form of esters in various essential oils,
resins and balsams which are very important intermediates in the biosynthetic pathway of several
natural products. The cinnamic derivatives play a vital role in the formation of commercially important
intermediate molecules which are necessary for the production of different bioactive compounds
and drugs. Different substitutions on basic moiety lead to various biological activities. Furthermore,
combination of appropriate pharmacophore groups with cinnamic acid derivatives were
developed to give hybrids in order to find out promising drug candidates as inhibitors of multiple
biological targets associated with inflammation. We found interesting to continue our efforts to design
and synthesise three series of novel cinnamic acid-based hybrids: a) nitrooxy esters of cinnamic
acid, b) ethers and c) amides of cinnamic acids with arginine, as pleiotropic candidates against multiple
targets of inflammation.
Methods:
The synthesis of cinnamic was established by a Knoevenagel-Doebner condensation of
the suitable aldehyde either with malonic acid in the presence of pyridine and piperidine, or with
phenylacetic acid in the precence of triethylamine in acetic anhydride. The synthesis of the corresponding
esters was conducted in two steps. The ethers were synthesized in low yields, with 1,2 –
dibromoethane in dry acetone, in the presence of K2CO3, to give oily products. The corresponding
cinnamic amides were synthesised in a single step. The synthesised hybrids were tested as lipoxygenase
(LOX) and cyclooxygenase (COX) inhibitors in vitro. In silico docking was applied to all the
novel derivatives. Several molecular properties of the hybrids were calculated in order to evaluate
their drug likeness.
Results:
A number of esters, ethers and amides of selected cinnamic acids, either phenyl substituted
or not, has been synthesised and subjected to modelling studies. The compounds were studied in
vitro/in vivo for their inhibitory activities on cox and lox, and as antioxidants. Log P values of all the
title compounds except of 3a (5.38) were found to be less than 5 and are in agreement to Lipinski’s
rule of five, suggesting satisfactory permeability across cell membrane. The molecular modelling
study seems to be in accordance with the experimental results for LOX and COX-2. The result of
antioxidant activity for amide 3b supports the anti-lox activity. Compound 5d presents the higher in
vivo anti-inflammatory.
Conclusion:
According to the experimental findings compounds 3b and 5d can be used as lead
compounds for the design of new molecules to target inflammation.
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Affiliation(s)
- Ioannis Fotopoulos
- Department of Pharmaceutical Chemistry, School of Pharmacy, Faculty of Health Sciences, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece
| | - Eleni Pontiki
- Department of Pharmaceutical Chemistry, School of Pharmacy, Faculty of Health Sciences, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece
| | - Dimitra Hadjipavlou Litina
- Department of Pharmaceutical Chemistry, School of Pharmacy, Faculty of Health Sciences, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece
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Cinnamic Acid Conjugates in the Rescuing and Repurposing of Classical Antimalarial Drugs. Molecules 2019; 25:molecules25010066. [PMID: 31878190 PMCID: PMC6982862 DOI: 10.3390/molecules25010066] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2019] [Revised: 12/13/2019] [Accepted: 12/20/2019] [Indexed: 12/13/2022] Open
Abstract
Cinnamic acids are compounds of natural origin that can be found in many different parts of a wide panoply of plants, where they play the most diverse biological roles, often in a conjugated form. For a long time, this has been driving Medicinal Chemists towards the investigation of the therapeutic potential of natural, semi-synthetic, or fully synthetic cinnamic acid conjugates. These efforts have been steadily disclosing promising drug leads, but a wide chemical space remains that deserves to be further explored. Amongst different reported approaches, the combination or conjugation of cinnamic acids with known drugs has been addressed in an attempt to produce either synergistic or multi-target action. In this connection, the present review will focus on efforts of the past decade regarding conjugation with cinnamic acids as a tool for the rescuing or the repurposing of classical antimalarial drugs, and also on future perspectives in this particular field of research.
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30
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Neelam, Khatkar A, Sharma KK. Phenylpropanoids and its derivatives: biological activities and its role in food, pharmaceutical and cosmetic industries. Crit Rev Food Sci Nutr 2019; 60:2655-2675. [PMID: 31456411 DOI: 10.1080/10408398.2019.1653822] [Citation(s) in RCA: 82] [Impact Index Per Article: 16.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Phenylpropanoids and their derivatives are plant secondary metabolites widely present in fruits, vegetables, cereal grains, beverages, spices and herbs. They are known to have multifaceted effects which include antimicrobial, antioxidant, anti-inflammatory, antidiabetic, anticancer activities and as well as exhibits renoprotective, neuroprotective, cardioprotective and hepatoprotective effects. Owing to their antioxidant, antimicrobial and photoprotective properties, these compounds have wide application in the food (preservation, packaging films and edible coating), pharmaceutical, cosmetic and other industries such as textile (colorant), biofuel (antioxidant additive) and sensors (sensing biologically relevant molecules). Phenylpropanoids are present in commercially available dietary supplements and skin care products. In this review, we have presented the current knowledge on the biosynthesis, occurrence, biological activities of phenylpropanoids and their derivatives, along with the mechanism of action and their potential applications in various industries.
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Affiliation(s)
- Neelam
- Department of Microbiology, Maharshi Dayanand University, Rohtak, Haryana, India
| | - Anurag Khatkar
- Department of Pharmaceutical sciences, Maharshi Dayanand University, Rohtak, Haryana, India
| | - Krishna Kant Sharma
- Department of Microbiology, Maharshi Dayanand University, Rohtak, Haryana, India
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Belyaeva KV, Nikitina LP, Mal'kina AG, Afonin AV, Vashchenko AV, Trofimov BA. Cyanoacetylenes as Triggers and Partners in KOH-Assisted Assemblies of Quinoline-Based Dihydropyrimido[1,2- a]quinolin-3-ones on Water. J Org Chem 2019; 84:9726-9733. [PMID: 31262176 DOI: 10.1021/acs.joc.9b01482] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Arylcyanoacetylenes trigger the assembly of dihydropyrimido[1,2-a]quinolin-3-ones in good to excellent yields on the platform of quinolines in the presence of KOH in aqueous media at room temperature. This green on-water methodology provides a simple one-pot access to a novel family of the pharmaceutically prospective compounds.
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Affiliation(s)
- Kseniya V Belyaeva
- A. E. Favorsky Irkutsk Institute of Chemistry, Siberian Branch , Russian Academy of Sciences , 1 Favorsky Str. , Irkutsk 664033 , Russian Federation
| | - Lina P Nikitina
- A. E. Favorsky Irkutsk Institute of Chemistry, Siberian Branch , Russian Academy of Sciences , 1 Favorsky Str. , Irkutsk 664033 , Russian Federation
| | - Anastasiya G Mal'kina
- A. E. Favorsky Irkutsk Institute of Chemistry, Siberian Branch , Russian Academy of Sciences , 1 Favorsky Str. , Irkutsk 664033 , Russian Federation
| | - Andrei V Afonin
- A. E. Favorsky Irkutsk Institute of Chemistry, Siberian Branch , Russian Academy of Sciences , 1 Favorsky Str. , Irkutsk 664033 , Russian Federation
| | - Alexander V Vashchenko
- A. E. Favorsky Irkutsk Institute of Chemistry, Siberian Branch , Russian Academy of Sciences , 1 Favorsky Str. , Irkutsk 664033 , Russian Federation
| | - Boris A Trofimov
- A. E. Favorsky Irkutsk Institute of Chemistry, Siberian Branch , Russian Academy of Sciences , 1 Favorsky Str. , Irkutsk 664033 , Russian Federation
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Santhosh Kumar S, Sajeli Begum A, Hira K, Niazi S, Prashantha Kumar BR, Araya H, Fujimoto Y. Structure-based design and synthesis of new 4-methylcoumarin-based lignans as pro-inflammatory cytokines (TNF-α, IL-6 and IL-1β) inhibitors. Bioorg Chem 2019; 89:102991. [PMID: 31153100 DOI: 10.1016/j.bioorg.2019.102991] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2018] [Revised: 04/21/2019] [Accepted: 05/17/2019] [Indexed: 12/13/2022]
Abstract
Suppression of pro-inflammatory cytokines (TNF-α, IL-1β and IL-6) along with nitric oxide reduction in RAW 264.7 cells by 7,8-dihydroxy-4-methylcoumarin, ethyl p-coumarate, ethyl caffeate and ethyl ferulate drove us to search structural-analogues of the aforementioned compounds through structure-based drug design. Docking studies revealed that substituted cinnamic acids and their ethyl esters (2-7c) showed higher GoldScore-fitness (GSF) and non-bonding interactions with target proteins than 7,8-dihydroxy-4-methylcoumarin (1a) and 7,8-dihydroxy-5-methylcoumarin (1b). With this background, the methylcoumarins (1a and 1b) and the cinnamic acid derivatives (2-7c) were fused in different permutations and combinations to generate sixty novel fused-cyclic coumarinolignans (FCLs) (8-13k). Docking studies on 8-13k indicated that several FCLs possess higher GSF, interesting active site interactions and distinctive π-π interactions compared to the standards (cleomiscosin A, diclofenac Na and prednisolone). Based on these findings, four novel FCLs (9d, 10d, 11d and 11e) were synthesized and tested for inhibition effect on TNF-α, IL-1β and IL-6 expressions in LPS and oxalate crystal-induced in-vitro models. Compound 10d exhibited significant effect (P < 0.0001 at 100 μM) with an IC50 value of 8.5 μM against TNF-α. Compound 11e possessed IC50 values of 13.29 μM and 17.94 μM against IL-6 and IL-1β, respectively. Study on SAR corroborated the requirement of C-4-methyl substituent in the coumarin moiety, dihydroxyl groups in the phenyl ring, and esterification of lignans for potent activity. Additionally, the reported excellent anti-inflammatory activity of cleomiscosin-A-glucoside was corroborated by from the higher GSF and better hydrophobic interactions than cleomsicosin A in the docking study. As an outcome, some novel and potentially active FCLs acting through NFκB and caspase 1 signaling pathways have been discovered as multiple cytokine inhibitors.
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Affiliation(s)
- S Santhosh Kumar
- Department of Pharmacy, Birla Institute of Technology & Science - Pilani, Hyderabad Campus, Jawahar Nagar, Shameerpet, Hyderabad 500078, Telangana State, India
| | - Ahil Sajeli Begum
- Department of Pharmacy, Birla Institute of Technology & Science - Pilani, Hyderabad Campus, Jawahar Nagar, Shameerpet, Hyderabad 500078, Telangana State, India.
| | - Kirti Hira
- Department of Pharmacy, Birla Institute of Technology & Science - Pilani, Hyderabad Campus, Jawahar Nagar, Shameerpet, Hyderabad 500078, Telangana State, India
| | - Sarfaraj Niazi
- Department of Pharmaceutical Chemistry, JSS College of Pharmacy-Mysuru, JSS Academy of Higher Education and Research, Mysuru 570015, Karnataka, India
| | - B R Prashantha Kumar
- Department of Pharmaceutical Chemistry, JSS College of Pharmacy-Mysuru, JSS Academy of Higher Education and Research, Mysuru 570015, Karnataka, India
| | - Hiroshi Araya
- School of Agriculture, Meiji University, Kawasaki, Kanagawa 214-8571, Japan
| | - Yoshinori Fujimoto
- School of Agriculture, Meiji University, Kawasaki, Kanagawa 214-8571, Japan
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Multi-Target Cinnamic Acids for Oxidative Stress and Inflammation: Design, Synthesis, Biological Evaluation and Modeling Studies. Molecules 2018; 24:molecules24010012. [PMID: 30577525 PMCID: PMC6337588 DOI: 10.3390/molecules24010012] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2018] [Revised: 12/17/2018] [Accepted: 12/18/2018] [Indexed: 11/29/2022] Open
Abstract
Inflammation is a complex phenomenon that results as a healing response of organisms to different factors, exerting immune signaling, excessive free radical activity and tissue destruction. Lipoxygenases and their metabolites e.g., LTB4, are associated with allergy, cell differentiation and carcinogenesis. Lipoxygenase 12/15 has been characterized as a mucosal-specific inhibitor of IgA and a contributor to the development of allergic sensitization and airway inflammation. Development of drugs that interfere with the formation or effects of these metabolites would be important for the treatment of various diseases like asthma, psoriasis, ulcerative colitis, rheumatoid arthritis, atherosclerosis, cancer and blood vessel disorders. In this study we extended our previous research synthesizing a series of multi-target cinnamic acids from the corresponding aldehydes with suitable 4-OH/Br substituted phenyl acetic acid by Knoevenagel condensation. The final products 1i, 3i, 3ii, 4i, 6i, 6ii, and 7i were obtained in high yields (52–98%) Their structures were verified spectrometrically, while their experimentally lipophilicity was determined as RM values. The novel derivatives were evaluated for their antioxidant activity using DPPH, hydroxyl radical, superoxide anion and ABTS+•, anti-lipid peroxidation and soybean lipoxygenase inhibition assays. The compounds presented medium interaction with DPPH (30–48% at 100 µM). In contrast all the synthesized derivatives strongly scavenge OH radicals (72–100% at 100 µM), ABTS+• (24–83% at 100 µM) and presented remarkable inhibition (87–100% at 100 µM) in linoleic acid peroxidation (AAPH). The topological polar surface of the compounds seems to govern the superoxide anion scavenging activity. Molecular docking studies were carried out on cinnamic acid derivative 3i and found to be in accordance with experimental biological results. All acids presented interesting lipoxygenase inhibition (IC50 = 7.4–100 µM) with compound 3i being the most potent LOX inhibitor with IC50 = 7.4 µM combining antioxidant activities. The antioxidant results support the LOX inhibitory activities. The recorded in vitro results highlight compound 3i as a lead compound for the design of new potent lipoxygenase inhibitors for the treatment of asthma, psoriasis, ulcerative colitis, rheumatoid arthritis, atherosclerosis, cancer and blood vessel disorders.
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Pavan B, Dalpiaz A. Retinal pigment epithelial cells as a therapeutic tool and target against retinopathies. Drug Discov Today 2018; 23:1672-1679. [DOI: 10.1016/j.drudis.2018.06.009] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2018] [Revised: 05/15/2018] [Accepted: 06/08/2018] [Indexed: 01/19/2023]
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Synthesis and Spectrum of Biological Activities of Novel N-arylcinnamamides. Int J Mol Sci 2018; 19:ijms19082318. [PMID: 30087309 PMCID: PMC6121455 DOI: 10.3390/ijms19082318] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2018] [Revised: 08/01/2018] [Accepted: 08/03/2018] [Indexed: 01/17/2023] Open
Abstract
A series of sixteen ring-substituted N-arylcinnamamides was prepared and characterized. Primary in vitro screening of all the synthesized compounds was performed against Staphylococcus aureus, three methicillin-resistant S. aureus strains, Mycobacterium tuberculosis H37Ra, Fusarium avenaceum, and Bipolaris sorokiniana. Several of the tested compounds showed antistaphylococcal, antitubercular, and antifungal activities comparable with or higher than those of ampicillin, isoniazid, and benomyl. (2E)-N-[3,5-bis(trifluoromethyl)phenyl]-3-phenylprop-2-enamide and (2E)-3-phenyl-N-[3-(trifluoromethyl)phenyl]prop-2-enamide showed the highest activities (MICs = 22.27 and 27.47 µM, respectively) against all four staphylococcal strains and against M. tuberculosis. These compounds showed an activity against biofilm formation of S. aureus ATCC 29213 in concentrations close to MICs and an ability to increase the activity of clinically used antibiotics with different mechanisms of action (vancomycin, ciprofloxacin, and tetracycline). In time-kill studies, a decrease of CFU/mL of >99% after 8 h from the beginning of incubation was observed. (2E)-N-(3,5-Dichlorophenyl)- and (2E)-N-(3,4-dichlorophenyl)-3-phenylprop-2-enamide had a MIC = 27.38 µM against M. tuberculosis, while a significant decrease (22.65%) of mycobacterial cell metabolism determined by the MTT assay was observed for the 3,5-dichlorophenyl derivative. (2E)-N-(3-Fluorophenyl)- and (2E)-N-(3-methylphenyl)-3-phenylprop-2-enamide exhibited MICs = 16.58 and 33.71 µM, respectively, against B. sorokiniana. The screening of the cytotoxicity of the most effective antimicrobial compounds was performed using THP-1 cells, and these chosen compounds did not shown any significant lethal effect. The compounds were also evaluated for their activity related to the inhibition of photosynthetic electron transport (PET) in spinach (Spinacia oleracea L.) chloroplasts. (2E)-N-(3,5-dichlorophenyl)-3-phenylprop-2-enamide (IC50 = 5.1 µM) was the most active PET inhibitor. Compounds with fungicide potency did not show any in vivo toxicity against Nicotiana tabacum var. Samsun. The structure–activity relationships are discussed.
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Synthesis of (E)-cinnamyl ester derivatives via a greener Steglich esterification. Bioorg Med Chem 2018; 26:5291-5298. [PMID: 29703423 DOI: 10.1016/j.bmc.2018.04.007] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2018] [Revised: 03/30/2018] [Accepted: 04/03/2018] [Indexed: 12/19/2022]
Abstract
Cinnamic acid derivatives are known antifungal, antimicrobial, antioxidant, and anticancer compounds. We have developed a facile and mild methodology for the synthesis of (E)-cinnamate derivatives using a modified Steglich esterification of (E)-cinnamic acid. Using acetonitrile as the solvent, rather than the typical chlorinated solvent, and 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide (EDC) as the coupling agent enables ester conversion in 45 min with mild heating (40-45 °C) and an average yield of 70% without need for further purification. These conditions were used to couple (E)-cinnamic acid with 1° and 2° aliphatic alcohols, benzylic and allylic alcohols, and phenols. This work demonstrates a facile and greener methodology for Steglich esterification reactions.
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Peperidou A, Bua S, Bozdag M, Hadjipavlou-Litina D, Supuran CT. Novel 6- and 7-Substituted Coumarins with Inhibitory Action against Lipoxygenase and Tumor-Associated Carbonic Anhydrase IX. Molecules 2018; 23:E153. [PMID: 29329232 PMCID: PMC6017447 DOI: 10.3390/molecules23010153] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2017] [Revised: 01/05/2018] [Accepted: 01/11/2018] [Indexed: 11/16/2022] Open
Abstract
A series of carboxamide derivatives of 6- and 7-substituted coumarins have been prepared by an original procedure starting from the corresponding 6- or 7-hydroxycoumarins which were alkylated with ethyl iodoacetate, and the obtained ester was converted to the corresponding carboxylic acids which were thereafter reacted with a series of aromatic/aliphatic/heterocyclic amines leading to the desired amides. The new derivatives were investigated as inhibitors of two enzymes, human carbonic anhydrases (hCAs) and soy bean lipoxygenase (LOX). Compounds 4a and 4b were potent LOX inhibitors, whereas many effective hCA IX inhibitors (KIs in the range of 30.2-30.5 nM) were detected in this study. Two compounds, 4b and 5b, showed the phenomenon of dual inhibition. Furthermore, these coumarins did not significantly inhibit the widespread cytosolic isoforms hCA I and II, whereas they were weak hCA IV inhibitors, making them hCA IX-selective inhibitors. As hCA IX and LOX are validated antitumor targets, these results are promising for the investigation of novel drug targets involved in tumorigenesis.
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Affiliation(s)
- Aikaterini Peperidou
- Dipartimento Neurofarba, Sezione di Scienze Farmaceutiche e Nutraceutiche, Università degli Studi di Firenze, Via Ugo Schiff 6, 50019 Sesto Fiorentino (Firenze), Italy.
- Department of Pharmaceutical Chemistry, School of Pharmacy, Faculty of Health Sciences, 54124 Thessaloniki, Greece.
| | - Silvia Bua
- Dipartimento Neurofarba, Sezione di Scienze Farmaceutiche e Nutraceutiche, Università degli Studi di Firenze, Via Ugo Schiff 6, 50019 Sesto Fiorentino (Firenze), Italy.
| | - Murat Bozdag
- Dipartimento di Chimica, Laboratorio di Chimica Bioinorganica, Università degli Studi di Firenze, Via della Lastruccia 3, 50019 Sesto Fiorentino (Firenze), Italy.
| | - Dimitra Hadjipavlou-Litina
- Department of Pharmaceutical Chemistry, School of Pharmacy, Faculty of Health Sciences, 54124 Thessaloniki, Greece.
| | - Claudiu T Supuran
- Dipartimento Neurofarba, Sezione di Scienze Farmaceutiche e Nutraceutiche, Università degli Studi di Firenze, Via Ugo Schiff 6, 50019 Sesto Fiorentino (Firenze), Italy.
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Adhikari D, Panthi VK, Pangeni R, Kim HJ, Park JW. Preparation, Characterization, and Biological Activities of Topical Anti-Aging Ingredients in a Citrus junos Callus Extract. Molecules 2017; 22:molecules22122198. [PMID: 29232889 PMCID: PMC6149992 DOI: 10.3390/molecules22122198] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2017] [Revised: 12/08/2017] [Accepted: 12/09/2017] [Indexed: 02/07/2023] Open
Abstract
In this study, we prepared and characterized a callus extract from Citrus junos and assessed its utility as a source of topical anti-aging ingredients. Callus extract was produced by aqueous extraction from Citrus junos grown on Murashige and Skoog medium with picloram as a growth regulator. After measuring the total phenolic and flavonoid contents, the major phenolic compound in calli was identified as p-hydroxycinnamoylmalic acid (1) by spectroscopic analysis. The total phenol content in the extract was determined to be 24.50 ± 0.43 mg/g of gallic acid equivalents; however, the total flavonoid content of the extract was not determined. The biological activities of the callus extract, in terms of skin anti-aging, were assessed by measuring the anti-tyrosinase activity in, and melanogenesis by, melanoma cells; and proliferation of, and procollagen synthesis by, human fibroblasts. The callus extract was incorporated into nanoliposomes (NLs) to improve its percutaneous absorption. Addition of the callus extract resulted in a 1.85-fold decrease in the melanin content of melanocytes compared with that with arbutin. The extract (500 μg/mL) significantly promoted the proliferation of, and procollagen synthesis by, fibroblasts (by 154% and 176%, respectively). In addition, the flux through the human epidermis of Citrus junos callus extract incorporated into NLs was 17.67-fold higher than that of the callus extract alone. These findings suggest that Citrus junos callus extract-loaded NLs have promise as an anti-aging cosmetic, as well as having a skin-lightening effect.
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Affiliation(s)
- Deepak Adhikari
- College of Pharmacy and Natural Medicine Research Institute, Mokpo National University, Muan-gun, Jeonnam 58554, Korea.
| | - Vijay Kumar Panthi
- College of Pharmacy and Natural Medicine Research Institute, Mokpo National University, Muan-gun, Jeonnam 58554, Korea.
| | - Rudra Pangeni
- College of Pharmacy and Natural Medicine Research Institute, Mokpo National University, Muan-gun, Jeonnam 58554, Korea.
| | - Hyun Jung Kim
- College of Pharmacy and Natural Medicine Research Institute, Mokpo National University, Muan-gun, Jeonnam 58554, Korea.
| | - Jin Woo Park
- College of Pharmacy and Natural Medicine Research Institute, Mokpo National University, Muan-gun, Jeonnam 58554, Korea.
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