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Nagahawatta DP, Liyanage NM, Jayawardena TU, Jeon YJ. Marine Polyphenols in Cardiovascular Health: Unraveling Structure-Activity Relationships, Mechanisms, and Therapeutic Implications. Int J Mol Sci 2024; 25:8419. [PMID: 39125987 PMCID: PMC11312663 DOI: 10.3390/ijms25158419] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2024] [Revised: 07/24/2024] [Accepted: 07/30/2024] [Indexed: 08/12/2024] Open
Abstract
Cardiovascular diseases (CVDs) are responsible for significant mortality rates globally that have been raised due to the limitation of the available treatments and prevalence of CVDs. The innovative research and identification of potential preventives for CVDs are essential to alleviate global deaths and complications. The marine environment is a rich source of bioactive substances and provides a unique chemical arsenal against numerous ailments due to its unrivaled biodiversity. Marine polyphenolic compounds (MPCs) are unique because of their structural variety and biologically significant activity. Further, MPCs are well-reported for their valuable biological activities, such as anti-inflammatory, cardioprotective, and antioxidant, demonstrating encouraging results in preventing and treating CVDs. Therefore, investigation of the structure-activity relationship (SAR) between MPCs and CVDs provides insights that reveal how the structural components of these compounds affect their effectiveness. Further, comprehending this correlation is essential for advancing medications and nutraceuticals sourced from marine sources, which could transform the strategy for treating and preventing cardiovascular diseases. Therefore, this study provides a comprehensive analysis of existing research by emphasizing the role of MPCs in CVD treatments and evaluating the SAR between MPCs and CVDs with challenges and future directions.
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Affiliation(s)
- D. P. Nagahawatta
- Department of Marine Life Sciences, Jeju National University, Jeju 63243, Republic of Korea; (D.P.N.); (N.M.L.)
| | - N. M. Liyanage
- Department of Marine Life Sciences, Jeju National University, Jeju 63243, Republic of Korea; (D.P.N.); (N.M.L.)
| | | | - You-Jin Jeon
- Department of Marine Life Sciences, Jeju National University, Jeju 63243, Republic of Korea; (D.P.N.); (N.M.L.)
- Marine Science Institute, Jeju National University, Jeju 63333, Republic of Korea
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2
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Zhao Z, Yuan Y, Li S, Wang X, Yang X. Natural compounds from herbs and nutraceuticals as glycogen synthase kinase-3β inhibitors in Alzheimer's disease treatment. CNS Neurosci Ther 2024; 30:e14885. [PMID: 39129397 PMCID: PMC11317746 DOI: 10.1111/cns.14885] [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: 03/14/2024] [Revised: 06/21/2024] [Accepted: 07/09/2024] [Indexed: 08/13/2024] Open
Abstract
BACKGROUND Alzheimer's disease (AD) pathogenesis is complex. The pathophysiology is not fully understood, and safe and effective treatments are needed. Glycogen synthase kinase 3β (GSK-3β) mediates AD progression through several signaling pathways. Recently, several studies have found that various natural compounds from herbs and nutraceuticals can significantly improve AD symptoms. AIMS This review aims to provide a comprehensive summary of the potential neuroprotective impacts of natural compounds as inhibitors of GSK-3β in the treatment of AD. MATERIALS AND METHODS We conducted a systematic literature search on PubMed, ScienceDirect, Web of Science, and Google Scholar, focusing on in vitro and in vivo studies that investigated natural compounds as inhibitors of GSK-3β in the treatment of AD. RESULTS The mechanism may be related to GSK-3β activation inhibition to regulate amyloid beta production, tau protein hyperphosphorylation, cell apoptosis, and cellular inflammation. By reviewing recent studies on GSK-3β inhibition in phytochemicals and AD intervention, flavonoids including oxyphylla A, quercetin, morin, icariin, linarin, genipin, and isoorientin were reported as potent GSK-3β inhibitors for AD treatment. Polyphenols such as schisandrin B, magnolol, and dieckol have inhibitory effects on GSK-3β in AD models, including in vivo models. Sulforaphene, ginsenoside Rd, gypenoside XVII, falcarindiol, epibrassinolides, 1,8-Cineole, and andrographolide are promising GSK-3β inhibitors. CONCLUSIONS Natural compounds from herbs and nutraceuticals are potential candidates for AD treatment. They may qualify as derivatives for development as promising compounds that provide enhanced pharmacological characteristics.
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Affiliation(s)
- Zheng Zhao
- Department of Emergency MedicineShengjing Hospital of China Medical UniversityShenyangLiaoningChina
| | - Ye Yuan
- Department of NeurosurgeryShengjing Hospital of China Medical UniversityShenyangLiaoningChina
| | - Shuang Li
- Department of Emergency MedicineShengjing Hospital of China Medical UniversityShenyangLiaoningChina
| | - Xiaofeng Wang
- Department of Emergency MedicineShengjing Hospital of China Medical UniversityShenyangLiaoningChina
| | - Xue Yang
- Department of NeurologyShengjing Hospital of China Medical UniversityShenyangLiaoningChina
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Youn K, Ho CT, Jun M. Investigating the Potential Anti-Alzheimer's Disease Mechanism of Marine Polyphenols: Insights from Network Pharmacology and Molecular Docking. Mar Drugs 2023; 21:580. [PMID: 37999404 PMCID: PMC10672357 DOI: 10.3390/md21110580] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Revised: 10/27/2023] [Accepted: 11/03/2023] [Indexed: 11/25/2023] Open
Abstract
Marine polyphenols, including eckol(EK), dieckol(DK), and 8,8'-bieckol(BK), have attracted attention as bioactive ingredients for preventing Alzheimer's disease (AD). Since AD is a multifactorial disorder, the present study aims to provide an unbiased elucidation of unexplored targets of AD mechanisms and a systematic prediction of effective preventive combinations of marine polyphenols. Based on the omics data between each compound and AD, a protein-protein interaction (PPI) network was constructed to predict potential hub genes. Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analyses were performed to provide further biological insights. In the PPI network of the top 10 hub genes, AKT1, SRC, EGFR, and ESR1 were common targets of EK and BK, whereas PTGS2 was a common target of DK and BK. GO and KEGG pathway analysis revealed that the overlapped genes between each compound and AD were mainly enriched in EGFR tyrosine kinase inhibitor resistance, the MAPK pathway, and the Rap1 and Ras pathways. Finally, docking validation showed stable binding between marine polyphenols and their top hub gene via the lowest binding energy and multiple interactions. The results expanded potential mechanisms and novel targets for AD, and also provided a system-level insight into the molecular targets of marine polyphenols against AD.
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Affiliation(s)
- Kumju Youn
- Department of Food Science and Nutrition, Dong-A University, Busan 49315, Republic of Korea;
| | - Chi-Tang Ho
- Department of Food Science, Rutgers University, New Brunswick, NJ 08901, USA;
| | - Mira Jun
- Department of Food Science and Nutrition, Dong-A University, Busan 49315, Republic of Korea;
- Department of Health Sciences, The Graduate School of Dong-A University, Busan 49315, Republic of Korea
- Center for Food & Bio Innovation, Dong-A University, Busan 49315, Republic of Korea
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4
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Seong SH, Kim SH, Ryu JH, Jeong JW, Jung HA, Choi JS. Effects of Icariin and Its Metabolites on GPCR Regulation and MK-801-Induced Schizophrenia-Like Behaviors in Mice. Molecules 2023; 28:7300. [PMID: 37959720 PMCID: PMC10647531 DOI: 10.3390/molecules28217300] [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: 09/19/2023] [Revised: 10/24/2023] [Accepted: 10/26/2023] [Indexed: 11/15/2023] Open
Abstract
Icariin, a major bioactive compound found in the Epimedium genus, has been reported to exert protective effects against neurodegenerative disorders. In the current study, we aimed to investigate the regulatory effect of icariin and its active metabolites (icariside II and icaritin) against prime G-protein-coupled receptor targets, considering their association with neuronal disorders. Icariside II exhibited selective agonist activity towards the dopamine D3 receptor (D3R), with half-maximal effective concentrations of 13.29 μM. Additionally, they effectively inhibited the specific binding of radioligands to D3R. Molecular docking analysis revealed that icariside II potentially exerts its agonistic effect through hydrogen-bonding interaction with Asp110 of the D3R, accompanied by negative binding energy. Conversely, icaritin demonstrated selective antagonist effects on the muscarinic acetylcholine M2 receptor (M2R). Radioligand binding assay and molecular docking analysis identified icaritin as an orthosteric ligand for M2R. Furthermore, all three compounds, icariin and its two metabolites, successfully mitigated MK-801-induced schizophrenia-like symptoms, including deficits in prepulse inhibition and social interaction, in mice. In summary, these findings highlight the potential of icariin and its metabolites as promising lead structures for the discovery of new drugs targeting cognitive and neurodegenerative disorders.
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Affiliation(s)
- Su Hui Seong
- Division of Natural Products Research, Honam National Institute of Biological Resources, Mokpo 58762, Republic of Korea; (S.H.S.); (J.-W.J.)
| | - Seo Hyun Kim
- Division of Research Management, Honam National Institute of Biological Resources, Mokpo 58762, Republic of Korea;
| | - Jong Hoon Ryu
- Department of Biomedical and Pharmaceutical Sciences, Kyung Hee University, Seoul 02447, Republic of Korea;
| | - Jin-Woo Jeong
- Division of Natural Products Research, Honam National Institute of Biological Resources, Mokpo 58762, Republic of Korea; (S.H.S.); (J.-W.J.)
| | - Hyun Ah Jung
- Department of Food Science and Human Nutrition, Jeonbuk National University, Jeonju 54896, Republic of Korea
| | - Jae Sue Choi
- Department of Food and Life Science, Pukyong National University, Busan 48513, Republic of Korea
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5
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Pereira L, Cotas J. Therapeutic Potential of Polyphenols and Other Micronutrients of Marine Origin. Mar Drugs 2023; 21:323. [PMID: 37367648 DOI: 10.3390/md21060323] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Revised: 05/22/2023] [Accepted: 05/25/2023] [Indexed: 06/28/2023] Open
Abstract
Polyphenols are compounds found in various plants and foods, known for their antioxidant and anti-inflammatory properties. Recently, researchers have been exploring the therapeutic potential of marine polyphenols and other minor nutrients that are found in algae, fish and crustaceans. These compounds have unique chemical structures and exhibit diverse biological properties, including anti-inflammatory, antioxidant, antimicrobial and antitumor action. Due to these properties, marine polyphenols are being investigated as possible therapeutic agents for the treatment of a wide variety of conditions, such as cardiovascular disease, diabetes, neurodegenerative diseases and cancer. This review focuses on the therapeutic potential of marine polyphenols and their applications in human health, and also, in marine phenolic classes, the extraction methods, purification techniques and future applications of marine phenolic compounds.
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Affiliation(s)
- Leonel Pereira
- MARE-Marine and Environmental Sciences Centre/ARNET-Aquatic Research Network, IATV-Institute of Environment, Technology and Life, Department of Life Sciences, University of Coimbra, Calçada Martim de Freitas, 3000-456 Coimbra, Portugal
- Instituto do Ambiente Tecnologia e Vida, Faculdade de Ciências e Tecnologia, Rua Sílvio Lima, 3030-790 Coimbra, Portugal
| | - João Cotas
- MARE-Marine and Environmental Sciences Centre/ARNET-Aquatic Research Network, IATV-Institute of Environment, Technology and Life, Department of Life Sciences, University of Coimbra, Calçada Martim de Freitas, 3000-456 Coimbra, Portugal
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6
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Kwon YJ, Kwon OI, Hwang HJ, Shin HC, Yang S. Therapeutic effects of phlorotannins in the treatment of neurodegenerative disorders. Front Mol Neurosci 2023; 16:1193590. [PMID: 37305552 PMCID: PMC10249478 DOI: 10.3389/fnmol.2023.1193590] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2023] [Accepted: 04/27/2023] [Indexed: 06/13/2023] Open
Abstract
Phlorotannins are natural polyphenolic compounds produced by brown marine algae and are currently found in nutritional supplements. Although they are known to cross the blood-brain barrier, their neuropharmacological actions remain unclear. Here we review the potential therapeutic benefits of phlorotannins in the treatment of neurodegenerative diseases. In mouse models of Alzheimer's disease, ethanol intoxication and fear stress, the phlorotannin monomer phloroglucinol and the compounds eckol, dieckol and phlorofucofuroeckol A have been shown to improve cognitive function. In a mouse model of Parkinson's disease, phloroglucinol treatment led to improved motor performance. Additional neurological benefits associated with phlorotannin intake have been demonstrated in stroke, sleep disorders, and pain response. These effects may stem from the inhibition of disease-inducing plaque synthesis and aggregation, suppression of microglial activation, modulation of pro-inflammatory signaling, reduction of glutamate-induced excitotoxicity, and scavenging of reactive oxygen species. Clinical trials of phlorotannins have not reported significant adverse effects, suggesting these compounds to be promising bioactive agents in the treatment of neurological diseases. We therefore propose a putative biophysical mechanism of phlorotannin action in addition to future directions for phlorotannin research.
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Affiliation(s)
- Yoon Ji Kwon
- Department of Neuroscience, City University of Hong Kong, Kowloon, Hong Kong SAR, China
| | - Oh Ig Kwon
- Botamedi Brain Health and Medical Care Company Limited, Central, Hong Kong SAR, China
| | - Hye Jeong Hwang
- Center for Molecular Intelligence, SUNY Korea, Incheon, Republic of Korea
| | - Hyeon-Cheol Shin
- Botamedi Brain Health and Medical Care Company Limited, Central, Hong Kong SAR, China
- Center for Molecular Intelligence, SUNY Korea, Incheon, Republic of Korea
| | - Sungchil Yang
- Department of Neuroscience, City University of Hong Kong, Kowloon, Hong Kong SAR, China
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7
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Nallasamy P, Rajamohamed BS, Jeyaraman J, Kathirvel B, Natarajan S. Regenerative marine waste towards CaCO 3 nanoformulation for Alzheimer's therapy. ENVIRONMENTAL RESEARCH 2023; 225:115631. [PMID: 36889568 DOI: 10.1016/j.envres.2023.115631] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Revised: 02/04/2023] [Accepted: 03/04/2023] [Indexed: 06/18/2023]
Abstract
Alzheimer's disorder (AD) is associated with behavioural and cognitive destruction with due respect to the neurological degeneration. Conventional therapeutic approach for treatment of AD using neuroprotective drugs suffered certain limitations such as poor solubility, insufficient bioavailability, adverse side effects at higher dose and ineffective permeability on blood brain barrier (BBB). Development of nanomaterial based drug delivery system helped to overcome these barriers. Hence the present work focused on encapsulating neuroprotective drug citronellyl acetate within CaCO3 nanoparticles to develop neuroprotective CaCO3 nanoformulation (CA@CaCO3 NFs). CaCO3 was derived from marine conch shell waste, while the neuroprotective drug citronellyl acetate was scrutinized by in-silico high throughput screening. In-vitro findings revealed that CA@CaCO3 nanoformulation exhibited enhanced free radical scavenging activity of 92% (IC50 value - 29.27 ± 2.6 μg/ml), AChE inhibition of 95% (IC50 value - 25.6292 ± 1.5 μg/ml) at its maximum dose (100 μg/ml). CA@CaCO3 NFs attenuated the aggregation of β-amyloid peptide (Aβ) and also disaggregated the preformed mature plaques the major risk factor for AD. Overall, the present study reveals that CaCO3 nanoformulations exhibits potent neuroprotective potential when compared to the CaCO3 nanoparticles alone and citronellyl acetate alone due to the sustained drug release and synergistic effect of CaCO3 nanoparticles and citronellyl acetate depicting the fact that CaCO3 can act as promising drug delivery system for treatment of neurodegenerative and CNS related disorders.
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Affiliation(s)
- Prakashkumar Nallasamy
- Bionanomaterials Research Lab, Department of Nanoscience and Technology, Alagappa University, Tamilnadu, India
| | | | | | - Brindhadevi Kathirvel
- Center for Transdisciplinary Research (CFTR), Department of Pharmacology, Saveethe Dental College, Saveetha Institute of Medical and Technical Sciences, Saveeth University, Chennai, India
| | - Suganthy Natarajan
- Bionanomaterials Research Lab, Department of Nanoscience and Technology, Alagappa University, Tamilnadu, India.
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8
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Effect of Ovocystatin on Amyloid β 1-42 Aggregation—In Vitro Studies. Int J Mol Sci 2023; 24:ijms24065433. [PMID: 36982505 PMCID: PMC10049317 DOI: 10.3390/ijms24065433] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2023] [Revised: 03/07/2023] [Accepted: 03/08/2023] [Indexed: 03/14/2023] Open
Abstract
Amyloid β peptides (Aβ) aggregating in the brain have a potential neurotoxic effect and are believed to be a major cause of Alzheimer’s disease (AD) development. Thus, inhibiting amyloid polypeptide aggregation seems to be a promising approach to the therapy and prevention of this neurodegenerative disease. The research presented here is directed at the determination of the inhibitory activity of ovocystatin, the cysteine protease inhibitor isolated from egg white, on Aβ42 fibril genesis in vitro. Thioflavin-T (ThT) assays, which determine the degree of aggregation of amyloid peptides based on fluorescence measurement, circular dichroism spectroscopy (CD), and transmission electron microscopy (TEM) have been used to assess the inhibition of amyloid fibril formation by ovocystatin. Amyloid beta 42 oligomer toxicity was measured using the MTT test. The results have shown that ovocystatin possesses Aβ42 anti-aggregation activity and inhibits Aβ42 oligomer toxicity in PC12 cells. The results of this work may help in the development of potential substances able to prevent or delay the process of beta-amyloid aggregation—one of the main reasons for Alzheimer’s disease.
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9
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Men X, Han X, Lee SJ, Oh G, Jin H, Oh HJ, Kim E, Kim J, Lee BY, Choi SI, Lee OH. In-Depth Understanding of Ecklonia stolonifera Okamura: A Review of Its Bioactivities and Bioactive Compounds. Mar Drugs 2022; 20:607. [PMID: 36286432 PMCID: PMC9604725 DOI: 10.3390/md20100607] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Revised: 09/24/2022] [Accepted: 09/24/2022] [Indexed: 11/17/2022] Open
Abstract
Ecklonia stolonifera Okamura (ES) is mainly distributed in the coastal areas of the middle Pacific, around Korea and Japan, and has a long-standing edible value. It is rich in various compounds, such as polysaccharides, fatty acids, alginic acid, fucoxanthin, and phlorotannins, among which the polyphenol compound phlorotannins are the main active ingredients. Studies have shown that the extracts and active components of ES exhibit anti-cancer, antioxidant, anti-obesity, anti-diabetic, antibacterial, cardioprotective, immunomodulatory, and other pharmacological properties in vivo and in vitro. Although ES contains a variety of bioactive compounds, it is not widely known and has not been extensively studied. Based on its potential health benefits, it is expected to play an important role in improving the nutritional value of food both economically and medically. Therefore, ES needs to be better understood and developed so that it can be utilized in the development and application of marine medicines, functional foods, bioactive substances, and in many other fields. This review provides a comprehensive overview of the bioactivities and bioactive compounds of ES to promote in-depth research and a reference for the comprehensive utilization of ES in the future.
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Affiliation(s)
- Xiao Men
- Department of Food Biotechnology and Environmental Science, Kangwon National University, Chuncheon 24341, Korea
| | - Xionggao Han
- Department of Food Biotechnology and Environmental Science, Kangwon National University, Chuncheon 24341, Korea
| | - Se-Jeong Lee
- Department of Food Biotechnology and Environmental Science, Kangwon National University, Chuncheon 24341, Korea
| | - Geon Oh
- Department of Food Biotechnology and Environmental Science, Kangwon National University, Chuncheon 24341, Korea
| | - Heegu Jin
- Department of Food Science and Biotechnology, College of Life Science, CHA University, Seongnam 13488, Korea
| | - Hyun-Ji Oh
- Department of Food Science and Biotechnology, College of Life Science, CHA University, Seongnam 13488, Korea
| | - Eunjin Kim
- Naturalway Co., Ltd., Pocheon 11160, Korea
| | | | - Boo-Yong Lee
- Department of Food Science and Biotechnology, College of Life Science, CHA University, Seongnam 13488, Korea
| | - Sun-Il Choi
- Department of Food Biotechnology and Environmental Science, Kangwon National University, Chuncheon 24341, Korea
| | - Ok-Hwan Lee
- Department of Food Biotechnology and Environmental Science, Kangwon National University, Chuncheon 24341, Korea
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10
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Sekiguchi M, Shinoda S, Uno A, Masaki T, Sasaki T, Ishiyama H. Structure-activity relationship in advanced glycation end products formation inhibitory activity of phlorotannins. Biosci Biotechnol Biochem 2022; 86:1207-1210. [PMID: 35776953 DOI: 10.1093/bbb/zbac106] [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: 05/31/2022] [Accepted: 06/16/2022] [Indexed: 11/14/2022]
Abstract
The structure and inhibitory activity of advanced glycation end products (AGEs) formation were studied using six model compounds and seven phlorotannins isolated from brown alga Ecklonia stolonifera. As a result, it was inferred that AGEs formation inhibitory activity was stronger when electron-rich groups were present because of the addition of many oxygen atoms to the phlorotannins.
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Affiliation(s)
- Mitsuhiro Sekiguchi
- Faculty of Bioresources and Environmental Sciences, Ishikawa Prefectural University, Nonoichi, Ishikawa, Japan
| | - Seiya Shinoda
- Faculty of Bioresources and Environmental Sciences, Ishikawa Prefectural University, Nonoichi, Ishikawa, Japan
| | - Arisa Uno
- Faculty of Bioresources and Environmental Sciences, Ishikawa Prefectural University, Nonoichi, Ishikawa, Japan
| | - Tomoya Masaki
- Faculty of Bioresources and Environmental Sciences, Ishikawa Prefectural University, Nonoichi, Ishikawa, Japan
| | - Tetsuya Sasaki
- Chemistry/Food Department, Industrial Research Institute of Ishikawa, Kanazawa, Ishikawa, Japan
| | - Haruaki Ishiyama
- School of Pharmaceutical Sciences, Ohu University, Koriyama, Fukushima, Japan
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Natural Products from Plants and Algae for Treatment of Alzheimer’s Disease: A Review. Biomolecules 2022; 12:biom12050694. [PMID: 35625622 PMCID: PMC9139049 DOI: 10.3390/biom12050694] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2022] [Revised: 05/05/2022] [Accepted: 05/06/2022] [Indexed: 12/14/2022] Open
Abstract
Neurodegenerative disorders including Parkinson’s disease (PD), Huntington’s disease (HD) and the most frequent, Alzheimer’s disease (AD), represent one of the most urgent medical needs worldwide. Despite a significantly developed understanding of disease development and pathology, treatments that stop AD progression are not yet available. The recent approval of sodium oligomannate (GV-971) for AD treatment in China emphasized the potential value of natural products for the treatment of neurodegenerative disorders. Many current clinical studies include the administration of a natural compound as a single and combination treatment. The most prominent mechanisms of action are anti-inflammatory and anti-oxidative activities, thus preserving cellular survival. Here, we review current natural products that are either approved or are in testing for a treatment of neurodegeneration in AD. In addition to the most important compounds of plant origin, we also put special emphasis on compounds from algae, given their neuroprotective activity and their underlying mechanisms of neuroprotection.
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12
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Shrestha S, Choi JS, Zhang W, Smid SD. Neuroprotective activity of macroalgal fucofuroeckols against amyloid β peptide‐induced cell death and oxidative stress. Int J Food Sci Technol 2022. [DOI: 10.1111/ijfs.15753] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Srijan Shrestha
- Discipline of Pharmacology School of Biomedicine Faculty of Health Sciences The University of Adelaide Adelaide 5005 SA Australia
| | - Jae Sue Choi
- Institute of Fisheries Sciences Pukyong National University Busan 46041 Korea
| | - Wei Zhang
- Centre for Marine Bioproducts Development (CMBD) College of Medicine and Public Health Flinders University 5001 Adelaide SA Australia
- Department of Medical Biotechnology College of Medicine and Public Health Flinders University 5001 Adelaide SA Australia
| | - Scott D. Smid
- Discipline of Pharmacology School of Biomedicine Faculty of Health Sciences The University of Adelaide Adelaide 5005 SA Australia
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13
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Je JG, Jiang Y, Heo JH, Li X, Jeon YJ, Ryu BM. Mitigative Effects of PFF-A Isolated from Ecklonia cava on Pigmentation in a Zebrafish Model and Melanogenesis in B16F10 Cells. Mar Drugs 2022; 20:123. [PMID: 35200653 PMCID: PMC8877154 DOI: 10.3390/md20020123] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Revised: 01/29/2022] [Accepted: 02/03/2022] [Indexed: 02/01/2023] Open
Abstract
Melanin synthesis is a defense mechanism that prevents skin damage, but excessive accumulation of melanin occurs in the skin in various reactions such as pigmentation, lentigines, and freckles. Although anti-melanogenic effects have been demonstrated for various naturally occurring marine products that inhibit and control tyrosinase activity, most studies have not been extended to in vivo applications. Phlorofucofuroeckol-A (PFF-A, 12.5-100 µM) isolated from Ecklonia cava has previously been shown to have tyrosinase-mitigative effects in B16F10 cells, but it has not been evaluated in an in vivo model, and its underlying mechanism for anti-melanogenic effects has not been studied. In the present study, we evaluated the safety and efficacy of PFF-A for anti-melanogenic effects in an in vivo model. We selected low doses of PFF-A (1.5-15 nM) and investigated their mitigative effects on pigmentation stimulated by α-MSH in vivo and their related-mechanism in an in vitro model. The findings suggest that low-dose PFF-A derived from E. cava suppresses pigmentation in vivo and melanogenesis in vitro. Therefore, this study presents the possibility that PFF-A could be utilized as a new anti-melanogenic agent in the cosmeceutical industries.
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Affiliation(s)
- Jun-Geon Je
- Department of Marine Life Sciences, Jeju National University, Jeju 63243, Korea; (J.-G.J.); (J.-H.H.); (Y.-J.J.)
| | - Yunfei Jiang
- School of Food Engineering, Jilin Agriculture Science and Technology University, Jilin 132101, China;
| | - Jun-Ho Heo
- Department of Marine Life Sciences, Jeju National University, Jeju 63243, Korea; (J.-G.J.); (J.-H.H.); (Y.-J.J.)
| | - Xining Li
- School of Life Sciences, Northeast Normal University, Changchun 130024, China;
| | - You-Jin Jeon
- Department of Marine Life Sciences, Jeju National University, Jeju 63243, Korea; (J.-G.J.); (J.-H.H.); (Y.-J.J.)
- Marine Science Institute, Jeju National University, Jeju 63333, Korea
| | - Bo-Mi Ryu
- Department of Marine Life Sciences, Jeju National University, Jeju 63243, Korea; (J.-G.J.); (J.-H.H.); (Y.-J.J.)
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Mantas I, Saarinen M, Xu ZQD, Svenningsson P. Update on GPCR-based targets for the development of novel antidepressants. Mol Psychiatry 2022; 27:534-558. [PMID: 33589739 PMCID: PMC8960420 DOI: 10.1038/s41380-021-01040-1] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Revised: 01/22/2021] [Accepted: 01/25/2021] [Indexed: 01/31/2023]
Abstract
Traditional antidepressants largely interfere with monoaminergic transport or degradation systems, taking several weeks to have their therapeutic actions. Moreover, a large proportion of depressed patients are resistant to these therapies. Several atypical antidepressants have been developed which interact with G protein coupled receptors (GPCRs) instead, as direct targeting of receptors may achieve more efficacious and faster antidepressant actions. The focus of this review is to provide an update on how distinct GPCRs mediate antidepressant actions and discuss recent insights into how GPCRs regulate the pathophysiology of Major Depressive Disorder (MDD). We also discuss the therapeutic potential of novel GPCR targets, which are appealing due to their ligand selectivity, expression pattern, or pharmacological profiles. Finally, we highlight recent advances in understanding GPCR pharmacology and structure, and how they may provide new avenues for drug development.
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Affiliation(s)
- Ioannis Mantas
- Department of Clinical Neuroscience, Karolinska Institute, Stockholm, Sweden
| | - Marcus Saarinen
- Department of Clinical Neuroscience, Karolinska Institute, Stockholm, Sweden
| | - Zhi-Qing David Xu
- Department of Neurobiology, Beijing Key Laboratory of Neural Regeneration and Repair, Beijing Institute for Brain Disorders, Capital Medical University, Beijing, China
| | - Per Svenningsson
- Department of Clinical Neuroscience, Karolinska Institute, Stockholm, Sweden.
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15
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Kim Y, Shin J, Shin H, Park K. Regioselective syntheses and analyses of
phlorofucofuroeckol‐A
derivatives. B KOREAN CHEM SOC 2021. [DOI: 10.1002/bkcs.12414] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Yongkyun Kim
- School of Chemical Engineering and Material Science, Chung‐Ang University Dongjak‐gu, Seoul Republic of Korea
| | - Jooseok Shin
- School of Chemical Engineering and Material Science, Chung‐Ang University Dongjak‐gu, Seoul Republic of Korea
| | - Hyeon‐cheol Shin
- Center for Molecular Intelligence The State University of New York Korea Incheon Republic of Korea
| | - Kwangyong Park
- School of Chemical Engineering and Material Science, Chung‐Ang University Dongjak‐gu, Seoul Republic of Korea
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16
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Natural α-Glucosidase and Protein Tyrosine Phosphatase 1B Inhibitors: A Source of Scaffold Molecules for Synthesis of New Multitarget Antidiabetic Drugs. Molecules 2021; 26:molecules26164818. [PMID: 34443409 PMCID: PMC8400511 DOI: 10.3390/molecules26164818] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Revised: 08/05/2021] [Accepted: 08/07/2021] [Indexed: 12/13/2022] Open
Abstract
Diabetes mellitus (DM) represents a group of metabolic disorders that leads to acute and long-term serious complications and is considered a worldwide sanitary emergence. Type 2 diabetes (T2D) represents about 90% of all cases of diabetes, and even if several drugs are actually available for its treatment, in the long term, they show limited effectiveness. Most traditional drugs are designed to act on a specific biological target, but the complexity of the current pathologies has demonstrated that molecules hitting more than one target may be safer and more effective. The purpose of this review is to shed light on the natural compounds known as α-glucosidase and Protein Tyrosine Phosphatase 1B (PTP1B) dual-inhibitors that could be used as lead compounds to generate new multitarget antidiabetic drugs for treatment of T2D.
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17
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Ghosh S, Verma S. Carvedilol inhibits Aβ 25-35 fibrillation by intervening the early stage helical intermediate formation: A biophysical investigation. Int J Biol Macromol 2021; 188:263-271. [PMID: 34371042 DOI: 10.1016/j.ijbiomac.2021.08.028] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2021] [Revised: 07/16/2021] [Accepted: 08/03/2021] [Indexed: 12/28/2022]
Abstract
Self-assembly of disordered amyloid-beta (Aβ) peptides results in highly ordered amyloid fibrils. The structural information of the early-stage events and also in the presence of inhibitors is of great significance. It is challenging to acquire due to the nature of the amyloids and experimental constraints. Here, we demonstrate the cascade of aggregation (early to late) of the Aβ25-35 peptide in the absence and presence of carvedilol, a nonselective β-adrenergic receptor blocker. The aggregation process of Aβ25-35 peptide is monitored using Thioflavin T (ThT) fluorescence, dynamic light scattering (DLS), circular dichroism (CD), Raman spectroscopic techniques, and imaging experiments. We find that the Aβ25-35 peptide undergoes an early-stage (3-6 h) helical intermediate formation across the fibrillation pathway using CD and Raman measurements. Carvedilol obstructs the helical intermediate formation of Aβ25-35 peptide resulting in inhibition. CD spectra and deconvolution of the Raman bands suggest the β-sheet formation (24-100 h) in the absence of carvedilol. Spectroscopic results indicate a disordered structure for the peptide in the presence of carvedilol (24-100 h). Electron microscopy (EM) shows the formation of polymorphic fibrils for the peptide alone and non-amyloidal aggregates in the presence of carvedilol. Molecular docking study suggests that the plausible mode of interaction with carvedilol involves the C-terminal residues of the peptide.
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Affiliation(s)
- Sudeshna Ghosh
- Department of Chemistry, Indian Institute of Technology Kanpur, UP 208016, India.
| | - Sandeep Verma
- Department of Chemistry, Indian Institute of Technology Kanpur, UP 208016, India.
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18
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Hafez Ghoran S, Kijjoa A. Marine-Derived Compounds with Anti-Alzheimer's Disease Activities. Mar Drugs 2021; 19:410. [PMID: 34436249 PMCID: PMC8399123 DOI: 10.3390/md19080410] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2021] [Revised: 07/17/2021] [Accepted: 07/22/2021] [Indexed: 12/21/2022] Open
Abstract
Alzheimer's disease (AD) is an irreversible and progressive brain disorder that slowly destroys memory and thinking skills, and, eventually, the ability to perform simple tasks. As the aging population continues to increase exponentially, AD has become a big concern for society. Therefore, neuroprotective compounds are in the spotlight, as a means to tackle this problem. On the other hand, since it is believed-in many cultures-that marine organisms in an individual diet cannot only improve brain functioning, but also slow down its dysfunction, many researchers have focused on identifying neuroprotective compounds from marine resources. The fact that the marine environment is a rich source of structurally unique and biologically and pharmacologically active compounds, with unprecedented mechanisms of action, marine macroorganisms, such as tunicates, corals, sponges, algae, as well as microorganisms, such as marine-derived bacteria, actinomycetes, and fungi, have been the target sources of these compounds. Therefore, this literature review summarizes and categorizes various classes of marine-derived compounds that are able to inhibit key enzymes involved in AD, including acetylcholinesterase (AChE), butyrylcholinesterase (BuChE), β-secretase (BACE-1), and different kinases, together with the related pathways involved in the pathogenesis of AD. The compounds discussed herein are emerging as promising anti-AD activities for further in-depth in vitro and in vivo investigations, to gain more insight of their mechanisms of action and for the development of potential anti-AD drug leads.
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Affiliation(s)
- Salar Hafez Ghoran
- Department of Chemistry, Faculty of Science, Golestan University, Gorgan 439361-79142, Iran;
- Medicinal Plants Research Center, Yasuj University of Medical Sciences, Yasuj 75919-94779, Iran
| | - Anake Kijjoa
- ICBAS-Instituto de Ciências Biomédicas Abel Salazar and CIIMAR, Rua de Jorge Viterbo Ferreira 228, 4050-313 Porto, Portugal
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19
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Szunerits S, Melinte S, Barras A, Pagneux Q, Voronova A, Abderrahmani A, Boukherroub R. The impact of chemical engineering and technological advances on managing diabetes: present and future concepts. Chem Soc Rev 2021; 50:2102-2146. [PMID: 33325917 DOI: 10.1039/c9cs00886a] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Monitoring blood glucose levels for diabetic patients is critical to achieve tight glycaemic control. As none of the current antidiabetic treatments restore lost functional β-cell mass in diabetic patients, insulin injections and the use of insulin pumps are most widely used in the management of glycaemia. The use of advanced and intelligent chemical engineering, together with the incorporation of micro- and nanotechnological-based processes have lately revolutionized diabetic management. The start of this concept goes back to 1974 with the description of an electrode that repeatedly measures the level of blood glucose and triggers insulin release from an infusion pump to enter the blood stream from a small reservoir upon need. Next to the insulin pumps, other drug delivery routes, including nasal, transdermal and buccal, are currently investigated. These processes necessitate competences from chemists, engineers-alike and innovative views of pharmacologists and diabetologists. Engineered micro and nanostructures hold a unique potential when it comes to drug delivery applications required for the treatment of diabetic patients. As the technical aspects of chemistry, biology and informatics on medicine are expanding fast, time has come to step back and to evaluate the impact of technology-driven chemistry on diabetics and how the bridges from research laboratories to market products are established. In this review, the large variety of therapeutic approaches proposed in the last five years for diabetic patients are discussed in an applied context. A survey of the state of the art of closed-loop insulin delivery strategies in response to blood glucose level fluctuation is provided together with insights into the emerging key technologies for diagnosis and drug development. Chemical engineering strategies centered on preserving and regenerating functional pancreatic β-cell mass are evoked in addition as they represent a permanent solution for diabetic patients.
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Affiliation(s)
- Sabine Szunerits
- Univ. Lille, CNRS, Centrale Lille, Univ. Polytechnique Hauts-de-France, UMR 8520-IEMN, F-59000 Lille, France.
| | - Sorin Melinte
- Institute of Information and Communication Technologies, Electronics and Applied Mathematics, Université catholique de Louvain, 1348 Louvain-la-Neuve, Belgium
| | - Alexandre Barras
- Univ. Lille, CNRS, Centrale Lille, Univ. Polytechnique Hauts-de-France, UMR 8520-IEMN, F-59000 Lille, France.
| | - Quentin Pagneux
- Univ. Lille, CNRS, Centrale Lille, Univ. Polytechnique Hauts-de-France, UMR 8520-IEMN, F-59000 Lille, France.
| | - Anna Voronova
- Univ. Lille, CNRS, Centrale Lille, Univ. Polytechnique Hauts-de-France, UMR 8520-IEMN, F-59000 Lille, France.
| | - Amar Abderrahmani
- Univ. Lille, CNRS, Centrale Lille, Univ. Polytechnique Hauts-de-France, UMR 8520-IEMN, F-59000 Lille, France.
| | - Rabah Boukherroub
- Univ. Lille, CNRS, Centrale Lille, Univ. Polytechnique Hauts-de-France, UMR 8520-IEMN, F-59000 Lille, France.
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20
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Paudel P, Seong SH, Park SE, Ryu JH, Jung HA, Choi JS. In Vitro and In Silico Characterization of G-Protein Coupled Receptor (GPCR) Targets of Phlorofucofuroeckol-A and Dieckol. Mar Drugs 2021; 19:326. [PMID: 34199834 PMCID: PMC8228075 DOI: 10.3390/md19060326] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Revised: 05/25/2021] [Accepted: 06/02/2021] [Indexed: 12/12/2022] Open
Abstract
Phlorotannins are polyphenolic compounds in marine alga, especially the brown algae. Among numerous phlorotannins, dieckol and phlorofucofuroeckol-A (PFF-A) are the major ones and despite a wider biological activity profile, knowledge of the G protein-coupled receptor (GPCR) targets of these phlorotannins is lacking. This study explores prime GPCR targets of the two phlorotannins. In silico proteocheminformatics modeling predicted twenty major protein targets and in vitro functional assays showed a good agonist effect at the α2C adrenergic receptor (α2CAR) and an antagonist effect at the adenosine 2A receptor (A2AR), δ-opioid receptor (δ-OPR), glucagon-like peptide-1 receptor (GLP-1R), and 5-hydroxytryptamine 1A receptor (5-TH1AR) of both phlorotannins. Besides, dieckol showed an antagonist effect at the vasopressin 1A receptor (V1AR) and PFF-A showed a promising agonist effect at the cannabinoid 1 receptor and an antagonist effect at V1AR. In silico molecular docking simulation enabled us to investigate and identify distinct binding features of these phlorotannins to the target proteins. The docking results suggested that dieckol and PFF-A bind to the crystal structures of the proteins with good affinity involving key interacting amino acid residues comparable to reference ligands. Overall, the present study suggests α2CAR, A2AR, δ-OPR, GLP-1R, 5-TH1AR, CB1R, and V1AR as prime receptor targets of dieckol and PFF-A.
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Affiliation(s)
- Pradeep Paudel
- Department of Food and Life Science, Pukyong National University, Busan 48513, Korea; (P.P.); (S.H.S.); (S.E.P.)
- National Center for Natural Products Research, Research Institute of Pharmaceutical Sciences, The University of Mississippi, Oxford, MS 38677, USA
| | - Su Hui Seong
- Department of Food and Life Science, Pukyong National University, Busan 48513, Korea; (P.P.); (S.H.S.); (S.E.P.)
- Natural Products Research Division, Honam National Institute of Biological Resource, Mokpo 58762, Korea
| | - Se Eun Park
- Department of Food and Life Science, Pukyong National University, Busan 48513, Korea; (P.P.); (S.H.S.); (S.E.P.)
- Department of Biomedical Science, Asan Medical Institute of Convergence Science and Technology, Seoul 05505, Korea
| | - Jong Hoon Ryu
- Department of Life and Nanopharmaceutical Science, Kyung Hee University, Seoul 02447, Korea;
| | - Hyun Ah Jung
- Department of Food Science and Human Nutrition, Jeonbuk National University, Jeonju 54896, Korea
| | - Jae Sue Choi
- Department of Food and Life Science, Pukyong National University, Busan 48513, Korea; (P.P.); (S.H.S.); (S.E.P.)
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21
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Seong SH, Jung HA, Choi JS. Discovery of Flazin, an Alkaloid Isolated from Cherry Tomato Juice, As a Novel Non-Enzymatic Protein Glycation Inhibitor via in Vitro and in Silico Studies. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2021; 69:3647-3657. [PMID: 33739098 DOI: 10.1021/acs.jafc.0c07486] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Both overproduced reactive oxygen species/reactive nitrogen species and hyperglycemic conditions accompany a significant increase in protein glycation and nitration that contribute to the initiation and progression of diabetic complications and neuronal disorders. In this study, 19 compounds, including steroidal saponins, alkaloids, cerebroside, phenolic compounds, sterols, and nucleosides, were isolated from cherry tomato (Solanum lycopersicum var. cerasiforme) juice, of which flazin showed good inhibition on monosaccharide-induced non-enzymatic bovine pancreas insulin and bovine serum albumin (BSA) glycation. Molecular dynamics simulations revealed that flazin continuously interacts with Phe1, Val2, Tyr26, and Lys29 insulin residues, which play a key role in insulin glycation/dimerization. In addition, depending upon the flazin dose, this blocked the tyrosine nitration of BSA via scavenging peroxynitrite anions. Taken together, our novel findings suggest that flazin could be a lead compound for the treatment of diabetes and neuronal disorders via the inhibition of non-enzymatic protein glycation and the elimination of peroxynitrite.
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Affiliation(s)
- Su Hui Seong
- Institute of Fisheries Sciences, Pukyong National University, Busan 46041, Republic of Korea
| | - Hyun Ah Jung
- Department of Food Science and Human Nutrition, Jeonbuk National University, Jeonju 54896, Republic of Korea
| | - Jae Sue Choi
- Institute of Fisheries Sciences, Pukyong National University, Busan 46041, Republic of Korea
- Department of Food and Life Science, Pukyong National University, Busan 48513, Republic of Korea
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22
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Yoon JH, Lee N, Youn K, Jo MR, Kim HR, Lee DS, Ho CT, Jun M. Dieckol Ameliorates Aβ Production via PI3K/Akt/GSK-3β Regulated APP Processing in SweAPP N2a Cell. Mar Drugs 2021; 19:md19030152. [PMID: 33804171 PMCID: PMC8001366 DOI: 10.3390/md19030152] [Citation(s) in RCA: 6] [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: 01/19/2021] [Revised: 03/06/2021] [Accepted: 03/11/2021] [Indexed: 02/07/2023] Open
Abstract
The proteolytic processing of amyloid precursor protein (APP) by β-secretase (BACE1) and γ-secretase releases amyloid-β peptide (Aβ), which deposits in amyloid plaques and contributes to the initial causative events of Alzheimer’s disease (AD). In the present study, the regulatory mechanism of APP processing of three phlorotannins was elucidated in Swedish mutant APP overexpressed N2a (SweAPP N2a) cells. Among the tested compounds, dieckol exhibited the highest inhibitory effect on both intra- and extracellular Aβ accumulation. In addition, dieckol regulated the APP processing enzymes, such as α-secretase (ADAM10), β-secretase, and γ-secretase, presenilin-1 (PS1), and their proteolytic products, sAPPα and sAPPβ, implying that the compound acts on both the amyloidogenic and non-amyloidogenic pathways. In addition, dieckol increased the phosphorylation of protein kinase B (Akt) at Ser473 and GSK-3β at Ser9, suggesting dieckol induced the activation of Akt, which phosphorylated GSK-3β. The specific phosphatidylinositol 3-kinase (PI3K) inhibitor LY294002 triggered GSK-3β activation and Aβ expression. In addition, co-treatment with LY294002 noticeably blocked the effect of dieckol on Aβ production, demonstrating that dieckol promoted the PI3K/Akt signaling pathway, which in turn inactivated GSK-3β, resulting in the reduction in Aβ levels.
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Affiliation(s)
- Jeong-Hyun Yoon
- Department of Health Sciences, The graduate School of Dong-A University, Busan 49315, Korea; (J.-H.Y.); (N.L.)
| | - Nayoung Lee
- Department of Health Sciences, The graduate School of Dong-A University, Busan 49315, Korea; (J.-H.Y.); (N.L.)
| | - Kumju Youn
- Department of Food Science and Nutrition, Dong-A University, Busan 49315, Korea;
| | - Mi Ra Jo
- Division of Food Safety and Processing Research, National Institute of Fisheries Science, Busan 46083, Korea;
| | - Hyeung-Rak Kim
- Department of Food Science and Nutrition, Pukyong National University, Busan 48513, Korea;
| | - Dong-Seok Lee
- School of Life Sciences & Biotechnology, College of Natural Sciences, Kyungpook National University, Daegu 41566, Korea;
| | - Chi-Tang Ho
- Department of Food Science, Rutgers University, New Brunswick, NJ 08901, USA;
| | - Mira Jun
- Department of Health Sciences, The graduate School of Dong-A University, Busan 49315, Korea; (J.-H.Y.); (N.L.)
- Department of Food Science and Nutrition, Dong-A University, Busan 49315, Korea;
- Correspondence: ; Tel.: +82-51-200-7323
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23
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Anti-insulin resistance effect of constituents from Senna siamea on zebrafish model, its molecular docking, and structure-activity relationships. J Nat Med 2021; 75:520-531. [PMID: 33620670 DOI: 10.1007/s11418-021-01490-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2020] [Accepted: 01/20/2021] [Indexed: 01/24/2023]
Abstract
Senna siamea has been used as an antidiabetic drug since antiquity. With regard to traditional Thai medicine, the use of S. siamea was described for diabetes therapy. To understand the molecular mechanism regarding insulin resistance. Pure compounds were isolated from wood extract. We studied their biological activities on insulin-resistance using an in vivo zebrafish model. We also performed an in silico study; molecular docking, and in vitro study by taking advantage of the enzyme inhibitory activities of α-glucosidase, PTP1B, and DPP-IV. Based on the preliminary investigation that ethyl acetate and ethanol extracts have potent effects against insulin resistance on zebrafish larvae, five compounds were isolated from two fractions following: resveratrol, piceatannol, dihydropiceatannol, chrysophanol, and emodin. All of the isolated compounds had anti-insulin resistance effects on zebrafish larvae. Resveratrol, piceatannol, and dihydropiceatannol also demonstrated inhibitory effects against α-glucosidase. Chrysophanol and emodin inhibited PTP1B activity, while resveratrol showed a DPP-IV inhibition effect via the molecular docking. The results of enzyme assay were similar. In conclusions, S. siamea components demonstrated effects against insulin resistance. The chemical structure displayed identical biological activity to that of the compounds. Therefore, S. siamea wood extract and their components are potential therapeutic options in the treatment of diabetes.
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24
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Barbosa M, Valentão P, Andrade PB. Polyphenols from Brown Seaweeds (Ochrophyta, Phaeophyceae): Phlorotannins in the Pursuit of Natural Alternatives to Tackle Neurodegeneration. Mar Drugs 2020; 18:E654. [PMID: 33353007 PMCID: PMC7766193 DOI: 10.3390/md18120654] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2020] [Revised: 12/14/2020] [Accepted: 12/16/2020] [Indexed: 12/11/2022] Open
Abstract
Globally, the burden of neurodegenerative disorders continues to rise, and their multifactorial etiology has been regarded as among the most challenging medical issues. Bioprospecting for seaweed-derived multimodal acting products has earned increasing attention in the fight against neurodegenerative conditions. Phlorotannins (phloroglucinol-based polyphenols exclusively produced by brown seaweeds) are amongst the most promising nature-sourced compounds in terms of functionality, and though research on their neuroprotective properties is still in its infancy, phlorotannins have been found to modulate intricate events within the neuronal network. This review comprehensively covers the available literature on the neuroprotective potential of both isolated phlorotannins and phlorotannin-rich extracts/fractions, highlighting the main key findings and pointing to some potential directions for neuro research ramp-up processes on these marine-derived products.
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Affiliation(s)
| | | | - Paula B. Andrade
- REQUIMTE/LAQV, Laboratório de Farmacognosia, Departamento de Química, Faculdade de Farmácia, Universidade do Porto, Rua de Jorge Viterbo Ferreira n.º 228, 4050-313 Porto, Portugal; (M.B.); (P.V.)
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25
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Mateos R, Pérez-Correa JR, Domínguez H. Bioactive Properties of Marine Phenolics. Mar Drugs 2020; 18:E501. [PMID: 33007997 PMCID: PMC7601137 DOI: 10.3390/md18100501] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2020] [Revised: 09/15/2020] [Accepted: 09/25/2020] [Indexed: 02/07/2023] Open
Abstract
Phenolic compounds from marine organisms are far less studied than those from terrestrial sources since their structural diversity and variability require powerful analytical tools. However, both their biological relevance and potential properties make them an attractive group deserving increasing scientific interest. The use of efficient extraction and, in some cases, purification techniques can provide novel bioactives useful for food, nutraceutical, cosmeceutical and pharmaceutical applications. The bioactivity of marine phenolics is the consequence of their enzyme inhibitory effect and antimicrobial, antiviral, anticancer, antidiabetic, antioxidant, or anti-inflammatory activities. This review presents a survey of the major types of phenolic compounds found in marine sources, as well as their reputed effect in relation to the occurrence of dietary and lifestyle-related diseases, notably type 2 diabetes mellitus, obesity, metabolic syndrome, cancer and Alzheimer's disease. In addition, the influence of marine phenolics on gut microbiota and other pathologies is also addressed.
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Affiliation(s)
- Raquel Mateos
- Institute of Food Science, Technology and Nutrition (ICTAN-CSIC), Spanish National Research Council (CSIC), José Antonio Nováis 10, 28040 Madrid, Spain;
| | - José Ricardo Pérez-Correa
- Department of Chemical and Bioprocess Engineering, Pontificia Universidad Católica de Chile, Macul, Santiago 7810000, Chile;
| | - Herminia Domínguez
- CINBIO, Department of Chemical Engineering, Faculty of Sciences, Campus Ourense, Universidade de Vigo, As Lagoas, 32004 Ourense, Spain
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26
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Impact of Ecklonia radiata extracts on the neuroprotective activities against amyloid beta (Aβ1-42) toxicity and aggregation. J Funct Foods 2020. [DOI: 10.1016/j.jff.2020.103893] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
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