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Carecho R, Marques D, Carregosa D, Masuero D, Garcia-Aloy M, Tramer F, Passamonti S, Vrhovsek U, Ventura MR, Brito MA, Nunes Dos Santos C, Figueira I. Circulating low-molecular-weight (poly)phenol metabolites in the brain: unveiling in vitro and in vivo blood-brain barrier transport. Food Funct 2024. [PMID: 38967492 DOI: 10.1039/d4fo01396d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/06/2024]
Abstract
Circulating metabolites resulting from colonic metabolism of dietary (poly)phenols are highly abundant in the bloodstream, though still marginally explored, particularly concerning their brain accessibility. Our goal is to disclose (poly)phenol metabolites' blood-brain barrier (BBB) transport, in vivo and in vitro, as well as their role at BBB level. For three selected metabolites, benzene-1,2-diol-3-sulfate/benzene-1,3-diol-2-sulfate (pyrogallol-sulfate - Pyr-sulf), benzene-1,3-diol-6-sulfate (phloroglucinol-sulfate - Phlo-sulf), and phenol-3-sulfate (resorcinol-sulfate - Res-sulf), BBB transport was assessed in human brain microvascular endothelial cells (HBMEC). Their potential in modulating in vitro BBB properties at circulating concentrations was also studied. Metabolites' fate towards the brain, liver, kidney, urine, and blood was disclosed in Wistar rats upon injection. Transport kinetics in HBMEC highlighted different BBB permeability rates, where Pyr-sulf emerged as the most in vitro BBB permeable metabolite. Pyr-sulf was also the most potent regarding BBB properties improvement, namely increased beta(β)-catenin membrane expression and reduction of zonula occludens-1 membrane gaps. Whereas no differences were observed for transferrin, increased expression of caveolin-1 upon Pyr-sulf and Res-sulf treatments was found. Pyr-sulf was also capable of modulating gene and protein expression of some solute carrier transporters. Notably, each of the injected metabolites exhibited a unique tissue distribution in vivo, with the remarkable ability to almost immediately reach the brain.
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Affiliation(s)
- Rafael Carecho
- iNOVA4Health, NOVA Medical School, Faculdade de Ciências Médicas, Universidade NOVA de Lisboa, Campo dos Mártires da Pátria, Lisboa, Portugal.
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade NOVA de Lisboa, Avenida da República, Oeiras, Portugal
| | - Daniela Marques
- iNOVA4Health, NOVA Medical School, Faculdade de Ciências Médicas, Universidade NOVA de Lisboa, Campo dos Mártires da Pátria, Lisboa, Portugal.
| | - Diogo Carregosa
- iNOVA4Health, NOVA Medical School, Faculdade de Ciências Médicas, Universidade NOVA de Lisboa, Campo dos Mártires da Pátria, Lisboa, Portugal.
| | - Domenico Masuero
- Metabolomics Unit, Research and Innovation Centre, Fondazione Edmund Mach (FEM), via E. Mach 1, San Michele all'Adige, Italy
| | - Mar Garcia-Aloy
- Metabolomics Unit, Research and Innovation Centre, Fondazione Edmund Mach (FEM), via E. Mach 1, San Michele all'Adige, Italy
| | - Federica Tramer
- Department of Life Sciences, University of Trieste, via L. Giorgieri 1, Trieste, Italy
| | - Sabina Passamonti
- Department of Life Sciences, University of Trieste, via L. Giorgieri 1, Trieste, Italy
| | - Urska Vrhovsek
- Metabolomics Unit, Research and Innovation Centre, Fondazione Edmund Mach (FEM), via E. Mach 1, San Michele all'Adige, Italy
| | - M Rita Ventura
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade NOVA de Lisboa, Avenida da República, Oeiras, Portugal
| | - Maria Alexandra Brito
- Research Institute for Medicines, Faculty of Pharmacy, Universidade de Lisboa, Av. Prof. Gama Pinto, Lisboa, Portugal
- Department of Pharmaceutical Sciences and Medicines, Faculty of Pharmacy, Universidade de Lisboa, Av. Prof. Gama Pinto, Lisboa, Portugal
| | - Cláudia Nunes Dos Santos
- iNOVA4Health, NOVA Medical School, Faculdade de Ciências Médicas, Universidade NOVA de Lisboa, Campo dos Mártires da Pátria, Lisboa, Portugal.
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade NOVA de Lisboa, Avenida da República, Oeiras, Portugal
- iBET, Instituto de Biologia Experimental e Tecnológica, Avenida da República, Apartado 12, Oeiras, Portugal
| | - Inês Figueira
- iNOVA4Health, NOVA Medical School, Faculdade de Ciências Médicas, Universidade NOVA de Lisboa, Campo dos Mártires da Pátria, Lisboa, Portugal.
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Yahyazadeh A. The effectiveness of hesperidin on bisphenol A-induced spinal cord toxicity in a diabetic rat model. Toxicon 2024; 243:107724. [PMID: 38649116 DOI: 10.1016/j.toxicon.2024.107724] [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: 03/18/2024] [Revised: 04/14/2024] [Accepted: 04/16/2024] [Indexed: 04/25/2024]
Abstract
The potential health risks of bisphenol A (BS) and diabetes (DI) has sparked public concern due to be ubiquitous worldwide. The purpose of this study was to investigate the detrimental impact of BS (200 mg/kg) on the spinal cord tissue in a rat diabetic model. We also evaluated the antioxidant capacity of hesperidin (HS) (100 mg/kg) on spinal cord in BS-treated diabetic rat. Seventy male Wistar albino rats, weighing 180-230 g and 8 weeks old, were randomly chosen, and assigned into seven groups of 10 rats: Control (KON), BS, DI, BS + DI, HS + BS, HS + DI, HS + BS + DI. At the end of the 14-day experimental period, all samples were examined using stereological, biochemical, and histopathological techniques. Our biochemical findings revealed that the SOD level was significantly lower in the BS, DI, and BS + DI groups compared to the KON group (p < 0.05). Compared to the KON group, there was a significant decrease in the number of motor neurons and an increase in the mean volume of central canals in the BS, DI, and BS + DI groups (p < 0.05). In the HS + BC group than the BS group and in the HS + DI group than the DI group, SOD activity and the number of motor neurons were significantly higher; also, the mean volume of spinal central canal was significantly lower (p < 0.05). The novel findings gathered from the histopathological assessment supported our quantitative results. Our speculation was that the exposure to BS and DI was the main cause of neurological alteration in the spinal cord tissues. The administration of HS had the therapeutic potential to mitigate spinal cord abnormalities resulting from BS and DI. However, HS supplementation did not alleviate spinal cord complications in BS-treated diabetic rats.
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Affiliation(s)
- Ahmad Yahyazadeh
- Department of Histology and Embryology, Faculty of Medicine, Karabuk University, Karabuk, Turkey.
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3
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El Oirdi M. Harnessing the Power of Polyphenols: A New Frontier in Disease Prevention and Therapy. Pharmaceuticals (Basel) 2024; 17:692. [PMID: 38931359 PMCID: PMC11206774 DOI: 10.3390/ph17060692] [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: 04/28/2024] [Revised: 05/19/2024] [Accepted: 05/23/2024] [Indexed: 06/28/2024] Open
Abstract
There are a wide variety of phytochemicals collectively known as polyphenols. Their structural diversity results in a broad range of characteristics and biological effects. Polyphenols can be found in a variety of foods and drinks, including fruits, cereals, tea, and coffee. Studies both in vitro and in vivo, as well as clinical trials, have shown that they possess potent antioxidant activities, numerous therapeutic effects, and health advantages. Dietary polyphenols have demonstrated the potential to prevent many health problems, including obesity, atherosclerosis, high blood sugar, diabetes, hypertension, cancer, and neurological diseases. In this paper, the protective effects of polyphenols and the mechanisms behind them are investigated in detail, citing the most recent available literature. This review aims to provide a comprehensive overview of the current knowledge on the role of polyphenols in preventing and managing chronic diseases. The cited publications are derived from in vitro, in vivo, and human-based studies and clinical trials. A more complete understanding of these naturally occurring metabolites will pave the way for the development of novel polyphenol-rich diet and drug development programs. This, in turn, provides further evidence of their health benefits.
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Affiliation(s)
- Mohamed El Oirdi
- Department of Life Sciences, College of Science, King Faisal University, Al Ahsa 31982, Saudi Arabia;
- Department of Basic Sciences, Preparatory Year, King Faisal University, Al Ahsa 31982, Saudi Arabia
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Fan Z, Wang K, Zhao X, Sun X. P2X7 receptor: A receptor closely linked with sepsis-associated encephalopathy. Open Life Sci 2024; 19:20220775. [PMID: 38585633 PMCID: PMC10998679 DOI: 10.1515/biol-2022-0775] [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: 07/14/2023] [Revised: 09/15/2023] [Accepted: 10/27/2023] [Indexed: 04/09/2024] Open
Abstract
Sepsis is defined as a dysregulated host response to infection resulting in life-threatening organ dysfunction. Sepsis-associated encephalopathy (SAE) is the main manifestation of sepsis. Inflammation, peroxidation stress injury, and apoptosis are the main factors involved in the pathogenesis of SAE. A growing body of evidence has proved that P2X7 receptor (P2X7R), a cationic channel receptor that is widely distributed in the body, plays a major role in the occurrence and development of inflammatory injury. Therefore, this review mainly describes the activation of P2X7R in sepsis, which leads to the recruitment of inflammatory cells to the cerebral vasculature, the destruction of the blood-brain barrier, the activation of microglial cells in the brain, the apoptosis of brain cells, and other damage processes. This review also illustrates the potential therapeutic value of P2X7R inhibition in SAE.
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Affiliation(s)
- Zhao Fan
- Shandong Provincial Medicine and Health Key Laboratory of Clinical Anesthesia, School of Anesthesiology, Weifang Medical University, Weifang261053, Shandong, China
| | - Kaifang Wang
- Shandong Provincial Medicine and Health Key Laboratory of Clinical Anesthesia, School of Anesthesiology, Weifang Medical University, Weifang261053, Shandong, China
| | - Xiaoyong Zhao
- Shandong Provincial Medicine and Health Key Laboratory of Clinical Anesthesia, School of Anesthesiology, Weifang Medical University, Weifang261053, Shandong, China
- The Affiliated Hospital of Weifang Medical University, Weifang261021, Shandong, China
| | - Xude Sun
- Shandong Provincial Medicine and Health Key Laboratory of Clinical Anesthesia, School of Anesthesiology, Weifang Medical University, Weifang261053, Shandong, China
- Department of Anesthesiology, Tangdu Hospital, Air Force Military Medical University, Xian710038, Shanxi, China
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Nájera-Maldonado JM, Salazar R, Alvarez-Fitz P, Acevedo-Quiroz M, Flores-Alfaro E, Hernández-Sotelo D, Espinoza-Rojo M, Ramírez M. Phenolic Compounds of Therapeutic Interest in Neuroprotection. J Xenobiot 2024; 14:227-246. [PMID: 38390994 PMCID: PMC10885129 DOI: 10.3390/jox14010014] [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: 01/02/2024] [Revised: 01/28/2024] [Accepted: 01/31/2024] [Indexed: 02/24/2024] Open
Abstract
The number of elderly people is projected to double in the next 50 years worldwide, resulting in an increased prevalence of neurodegenerative diseases. Aging causes changes in brain tissue homeostasis, thus contributing to the development of neurodegenerative disorders. Current treatments are not entirely effective, so alternative treatments or adjuvant agents are being actively sought. Antioxidant properties of phenolic compounds are of particular interest for neurodegenerative diseases whose psychopathological mechanisms strongly rely on oxidative stress at the brain level. Moreover, phenolic compounds display other advantages such as the permeability of the blood-brain barrier (BBB) and the interesting molecular mechanisms that we reviewed in this work. We began by briefly outlining the physiopathology of neurodegenerative diseases to understand the mechanisms that result in irreversible brain damage, then we provided an overall classification of the phenolic compounds that would be addressed later. We reviewed in vitro and in vivo studies, as well as some clinical trials in which neuroprotective mechanisms were demonstrated in models of different neurodegenerative diseases such as amyotrophic lateral sclerosis (ALS), Alzheimer's disease (AD), Parkinson's disease (PD), ischemia, and traumatic brain injury (TBI).
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Affiliation(s)
| | - Ricardo Salazar
- CONAHCYT National Council of Humanities, Sciences and Technologies, Autonomous University of Guerrero, Chilpancingo 39087, Mexico
| | - Patricia Alvarez-Fitz
- CONAHCYT National Council of Humanities, Sciences and Technologies, Autonomous University of Guerrero, Chilpancingo 39087, Mexico
| | - Macdiel Acevedo-Quiroz
- National Technological Institute of Mexico, Technological/IT Institute of Zacatepec, Zacatepec 62780, Mexico
| | - Eugenia Flores-Alfaro
- Faculty of Chemical Biological Sciences, Autonomous University of Guerrero, Chilpancingo 39087, Mexico
| | - Daniel Hernández-Sotelo
- Faculty of Chemical Biological Sciences, Autonomous University of Guerrero, Chilpancingo 39087, Mexico
| | - Mónica Espinoza-Rojo
- Faculty of Chemical Biological Sciences, Autonomous University of Guerrero, Chilpancingo 39087, Mexico
| | - Mónica Ramírez
- CONAHCYT National Council of Humanities, Sciences and Technologies, Autonomous University of Guerrero, Chilpancingo 39087, Mexico
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Tang J, Yan B, Tang Y, Zhou X, Ji Z, Xu F. Baicalein ameliorates oxidative stress and brain injury after intracerebral hemorrhage by activating the Nrf2/ARE pathway via miR-106a-5p/PHLPP2 axis. Int J Neurosci 2023; 133:1380-1393. [PMID: 35612366 DOI: 10.1080/00207454.2022.2080676] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Accepted: 05/12/2022] [Indexed: 12/14/2022]
Abstract
Intracerebral hemorrhage (ICH) is a devastating stroke subtype. Baicalein (BAI) has been reported to be effective in ischemic stroke. The aim of the present study was to investigate the mechanism of BAI on brain injury after ICH. Firstly, ICH mouse models were established by injecting collagenase into the right of basal ganglia, followed by detection of neurobehavioral scores, brain edema, oxidative stress (OS) level, neuronal apoptosis and pathological changes. Average neurologic scores, brain water content, and blood-brain barrier permeability and MDA level in ICH mice were reduced after BAI treatment, while serum SOD and GSH-Px levels were increased and neuronal apoptosis and pathological injury of the brain tissues were mitigated. miR-106a-5p downregulation averted the effect of BAI on ICH mice. miR-106a-5p targeted PHLPP2 and PHLPP2 overexpression reversed the effect of BAI on ICH mice. BAI activated the Nrf2/ARE pathway by inhibiting PHLPP2 expression. In conclusion, BAI inhibited OS and protected against brain injury after ICH by activating the Nrf2/ARE pathway through the miR-106a-5p/PHLPP2 axis.
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Affiliation(s)
- Jilei Tang
- Department of Neurosurgery, The First People'Hospital of Xuzhou, Xuzhou, Jiangsu, China
| | - Bingchao Yan
- Department of Neurosurgery, The First People'Hospital of Xuzhou, Xuzhou, Jiangsu, China
| | - Yangyang Tang
- Department of Nursing Basic Medicine Teaching and Research Section, Jiangsu Provincial Xuzhou Pharmaceutical Vocational College, Xuzhou, Jiangsu, China
| | - Xin Zhou
- Xuzhou College of Industrial Technolog, Xuzhou, Jiangsu, China
| | - Ziteng Ji
- Department of Neurosurgery, The First People'Hospital of Xuzhou, Xuzhou, Jiangsu, China
| | - Feng Xu
- Department of Neurosurgery, The First People'Hospital of Xuzhou, Xuzhou, Jiangsu, China
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Muzammil K, Kzar MH, Mohammed F, Mohammed ZI, Hamood SA, Hussein TK, Hanoon SJ, Qasim MT, Hussien Alawadi A, Alsalamy A. Methanol extract of Iraqi Kurdistan Region Daphne mucronata as a potent source of antioxidant, antimicrobial, and anticancer agents for the synthesis of novel and bioactive polyvinylpyrrolidone nanofibers. Front Chem 2023; 11:1287870. [PMID: 37954957 PMCID: PMC10634434 DOI: 10.3389/fchem.2023.1287870] [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: 09/02/2023] [Accepted: 10/02/2023] [Indexed: 11/14/2023] Open
Abstract
In this study, aqueous, ethanol, methanol, and hexane extracts from Iraqi Kurdistan Region Daphne mucronata were prepared due to the numerous applications and development of nanofibers in biological and medical fields, including food packaging, enzyme stabilization, and wound dressing. In the initial evaluation of the extracts, the antioxidant properties against DPPH, antimicrobial properties against 3-gram-positive bacterial species, 3-gram negative bacterial species, 3-common bacterial species between aquatic and human, and 3-fungal species, and anticancer properties against breast cancer cells were performed. The results proved that the methanol extract has the highest antimicrobial, antifungal, antioxidant, and anticancer properties. After identifying the compounds of prepared methanol extract using GC/MS, polyvinylpyrrolidone nanofibers containing methanol extract of Daphne mucronata were prepared. The structure and characteristics of prepared nanofibers were confirmed and determined using FTIR, TGA, BET, SEM, flexural strength, compressive strength, and hydrophilicity. Synthesized polyvinylpyrrolidone nanofibers containing methanol extract of D. mucronata were subjected to antimicrobial properties on the strains studied in methanol extract of D. mucronata. The antimicrobial properties of synthesized polyvinylpyrrolidone nanofibers containing methanol extract of D. mucronata were compared. The results showed that synthesized polyvinylpyrrolidone nanofibers containing methanol extract of D. mucronata have the potential to introduction bioactive natural synthesis nanoparticles.
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Affiliation(s)
- Khursheed Muzammil
- Department of Public Health, College of Applied Medical Sciences, Khamis Mushait Campus, King Khalid University, Abha, Saudi Arabia
| | - Mazin Hadi Kzar
- College of Physical Education and Sport Sciences, Al-Mustaqbal University, Hillah, Iraq
| | - Faraj Mohammed
- Department of Medical Laboratories, Al-Manara College For Medical Sciences, Maysan, Iraq
| | | | - Sarah A. Hamood
- Department of Medical Engineering, Al-Esraa University College, Baghdad, Iraq
| | - Talib Kh. Hussein
- Department of Medical Laboratories, Al-Hadi University College, Baghdad, Iraq
| | - Saheb Jubeir Hanoon
- Department of Medical Laboratories, College of Health and Medical Technology, Sawa University, Almuthana, Iraq
| | - Maytham T. Qasim
- Department of Anesthesia, College of Health and Medical Technololgy, Al-Ayen University, Thi-Qar, Iraq
| | - Ahmed Hussien Alawadi
- College of Technical Engineering, The Islamic University, Najaf, Iraq
- College of Technical Engineering, The Islamic University of Al Diwaniyah, Al Diwaniyah, Iraq
- College of Technical Engineering, The Islamic University of Babylon, Babylon, Iraq
| | - Ali Alsalamy
- College of Technical Engineering, Imam Ja’afar Al-Sadiq University, Al-Muthanna, Iraq
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Alam P, Imran M, Jahan S, Akhtar A, Hasan Z. Formulation and Characterization of Hesperidin-Loaded Transethosomal Gel for Dermal Delivery to Enhance Antibacterial Activity: Comprehension of In Vitro, Ex Vivo, and Dermatokinetic Analysis. Gels 2023; 9:791. [PMID: 37888364 PMCID: PMC10606654 DOI: 10.3390/gels9100791] [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: 08/29/2023] [Revised: 09/25/2023] [Accepted: 09/27/2023] [Indexed: 10/28/2023] Open
Abstract
In this study, hesperidin was loaded into a transethosome and was developed employing the rotary evaporator method. The formulation was optimized using the Box-Behnken design (BBD). The optimized HSD-TE formulation has a spherical shape, vesicle size, polydispersity index, entrapment efficiency, and zeta potential within the range of 178.98 nm; the PDI was 0.259 with a zeta potential of -31.14 mV and % EE of 89.51%, respectively. The in vitro drug release shows that HSD-TE exhibited the release of 81.124 ± 3.45% in comparison to HSD suspension. The ex vivo skin permeation showed a 2-fold increase in HSD-TE gel permeation. The antioxidant activity of HSD-TE was found to be 79.20 ± 1.77% higher than that of the HSD solution. The formulation showed 2-fold deeper HSD-TE penetration across excised rat skin membranes in confocal laser microscopy scanning, indicating promising in vivo prospects. In a dermatokinetic study, HSD-TE gel was compared to HSD conventional gel where TE significantly boosted HSD transport in the epidermis and dermal layers. The formulation showed greater efficacy than free HSD in the inhibition of microbial growth, as evidenced by antibacterial activity on the Gram-negative and positive bacteria. These investigations found that the HSD-TE formulation could enhance the topical application in the management of cutaneous bacterial infections.
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Affiliation(s)
- Perwez Alam
- Department of Pharmacognosy, College of Pharmacy, King Saud University, P.O. Box 2457, Riyadh 11451, Saudi Arabia;
| | - Mohd Imran
- Department of Pharmacognosy, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi 110062, India;
| | - Samreen Jahan
- Department of Pharmaceutics, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi 110062, India;
| | - Ali Akhtar
- Department of Pharmacognosy, College of Pharmacy, King Saud University, P.O. Box 2457, Riyadh 11451, Saudi Arabia;
| | - Zafrul Hasan
- Department of Medical Surgical Nursing, College of Nursing, King Saud University, Riyadh 11451, Saudi Arabia;
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Bellavite P. Neuroprotective Potentials of Flavonoids: Experimental Studies and Mechanisms of Action. Antioxidants (Basel) 2023; 12:antiox12020280. [PMID: 36829840 PMCID: PMC9951959 DOI: 10.3390/antiox12020280] [Citation(s) in RCA: 20] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Revised: 01/23/2023] [Accepted: 01/25/2023] [Indexed: 01/31/2023] Open
Abstract
Neurological and neurodegenerative diseases, particularly those related to aging, are on the rise, but drug therapies are rarely curative. Functional disorders and the organic degeneration of nervous tissue often have complex causes, in which phenomena of oxidative stress, inflammation and cytotoxicity are intertwined. For these reasons, the search for natural substances that can slow down or counteract these pathologies has increased rapidly over the last two decades. In this paper, studies on the neuroprotective effects of flavonoids (especially the two most widely used, hesperidin and quercetin) on animal models of depression, neurotoxicity, Alzheimer's disease (AD) and Parkinson's disease are reviewed. The literature on these topics amounts to a few hundred publications on in vitro and in vivo models (notably in rodents) and provides us with a very detailed picture of the action mechanisms and targets of these substances. These include the decrease in enzymes that produce reactive oxygen and ferroptosis, the inhibition of mono-amine oxidases, the stimulation of the Nrf2/ARE system, the induction of brain-derived neurotrophic factor production and, in the case of AD, the prevention of amyloid-beta aggregation. The inhibition of neuroinflammatory processes has been documented as a decrease in cytokine formation (mainly TNF-alpha and IL-1beta) by microglia and astrocytes, by modulating a number of regulatory proteins such as Nf-kB and NLRP3/inflammasome. Although clinical trials on humans are still scarce, preclinical studies allow us to consider hesperidin, quercetin, and other flavonoids as very interesting and safe dietary molecules to be further investigated as complementary treatments in order to prevent neurodegenerative diseases or to moderate their deleterious effects.
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Xue Y, Wang X, Wan B, Wang D, Li M, Cheng K, Luo Q, Wang D, Lu Y, Zhu L. Caveolin-1 accelerates hypoxia-induced endothelial dysfunction in high-altitude cerebral edema. Cell Commun Signal 2022; 20:160. [PMID: 36253854 PMCID: PMC9575296 DOI: 10.1186/s12964-022-00976-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Accepted: 09/18/2022] [Indexed: 11/29/2022] Open
Abstract
Background High-altitude cerebral edema (HACE) is a serious and potentially fatal brain injury that is caused by acute hypobaric hypoxia (HH) exposure. Vasogenic edema is the main pathological factor of this condition. Hypoxia-induced disruptions of tight junctions in the endothelium trigger blood‒brain barrier (BBB) damage and induce vasogenic edema. Nuclear respiratory factor 1 (NRF1) acts as a major regulator of hypoxia-induced endothelial cell injury, and caveolin-1 (CAV-1) is upregulated as its downstream gene in hypoxic endothelial cells. This study aimed to investigate whether CAV-1 is involved in HACE progression and the underlying mechanism. Methods C57BL/6 mice were exposed to HH (7600 m above sea level) for 24 h, and BBB injury was assessed by brain water content, Evans blue staining and FITC-dextran leakage. Immunofluorescence, transmission electron microscope, transendothelial electrical resistance (TEER), transcytosis assays, and western blotting were performed to confirm the role and underlying mechanism of CAV-1 in the disruption of tight junctions and BBB permeability. Mice or bEnd.3 cells were pretreated with MβCD, a specific blocker of CAV-1, and the effect of CAV-1 on claudin-5 internalization under hypoxic conditions was detected by immunofluorescence, western blotting, and TEER. The expression of NRF1 was knocked down, and the regulation of CAV-1 by NRF1 under hypoxic conditions was examined by qPCR, western blotting, and immunofluorescence. Results The BBB was severely damaged and was accompanied by a significant loss of vascular tight junction proteins in HACE mice. CAV-1 was significantly upregulated in endothelial cells, and claudin-5 explicitly colocalized with CAV-1. During the in vitro experiments, hypoxia increased cell permeability, CAV-1 expression, and claudin-5 internalization and downregulated tight junction proteins. Simultaneously, hypoxia induced the upregulation of CAV-1 by activating NRF1. Blocking CAV-1-mediated intracellular transport improved the integrity of TJs in hypoxic endothelial cells and effectively inhibited the increase in BBB permeability and brain water content in HH animals. Conclusions Hypoxia upregulated CAV-1 transcription via the activation of NRF1 in endothelial cells, thus inducing the internalization and autophagic degradation of claudin-5. These effects lead to the destruction of the BBB and trigger HACE. Therefore, CAV-1 may be a potential therapeutic target for HACE. Video abstract
Supplementary Information The online version contains supplementary material available at 10.1186/s12964-022-00976-3.
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Affiliation(s)
- Yan Xue
- Institute of Special Environmental Medicine, Co-Innovation Center of Neuroregeneration, Nantong University, Nantong, 226019, China.,Medical School of Nantong University, Nantong, 226007, China.,Nantong Health College of Jiangsu Province, Nantong, 226010, China
| | - Xueting Wang
- Institute of Special Environmental Medicine, Co-Innovation Center of Neuroregeneration, Nantong University, Nantong, 226019, China
| | - Baolan Wan
- Institute of Special Environmental Medicine, Co-Innovation Center of Neuroregeneration, Nantong University, Nantong, 226019, China
| | - Dongzhi Wang
- Department of Hepatobiliary and Pancreatic Surgery, Affiliated Hospital of Nantong University, Nantong, 226006, China
| | - Meiqi Li
- Institute of Special Environmental Medicine, Co-Innovation Center of Neuroregeneration, Nantong University, Nantong, 226019, China
| | - Kang Cheng
- Institute of Special Environmental Medicine, Co-Innovation Center of Neuroregeneration, Nantong University, Nantong, 226019, China
| | - Qianqian Luo
- Institute of Special Environmental Medicine, Co-Innovation Center of Neuroregeneration, Nantong University, Nantong, 226019, China
| | - Dan Wang
- Institute of Special Environmental Medicine, Co-Innovation Center of Neuroregeneration, Nantong University, Nantong, 226019, China
| | - Yapeng Lu
- Institute of Special Environmental Medicine, Co-Innovation Center of Neuroregeneration, Nantong University, Nantong, 226019, China
| | - Li Zhu
- Institute of Special Environmental Medicine, Co-Innovation Center of Neuroregeneration, Nantong University, Nantong, 226019, China.
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11
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Balland E, Lafenetre P, Vauzour D. Editorial: Polyphenols' action on the brain. Front Neurosci 2022; 16:947761. [PMID: 35937883 PMCID: PMC9349348 DOI: 10.3389/fnins.2022.947761] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Accepted: 07/08/2022] [Indexed: 11/13/2022] Open
Affiliation(s)
- Eglantine Balland
- Department of Nutrition, Dietetics and Food, School of Clinical Sciences at Monash Health, Faculty of Medicine, Nursing and Health Sciences, Monash University, Notting Hill, VIC, Australia
- *Correspondence: Eglantine Balland
| | - Pauline Lafenetre
- Bordeaux INP, Nutrition and Integrative Neurobiology, UMR1286, Bordeaux, France
- CNRS, Interdisciplinary Institute for Neuroscience, UMR 5297, Bordeaux, France
| | - David Vauzour
- Norwich Medical School, Biomedical Research Centre, Faculty of Medicine and Health Sciences, University of East Anglia, Norwich, United Kingdom
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12
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Electroacupuncture Increases the Hippocampal Synaptic Transmission Efficiency and Long-Term Plasticity to Improve Vascular Cognitive Impairment. Mediators Inflamm 2022; 2022:5985143. [PMID: 35784174 PMCID: PMC9246579 DOI: 10.1155/2022/5985143] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Revised: 05/02/2022] [Accepted: 05/18/2022] [Indexed: 11/18/2022] Open
Abstract
Studies have shown that electroacupuncture (EA) can effectively improve vascular cognitive impairment (VCI), but its mechanisms have not been clearly elucidated. This study is aimed at investigating the mechanisms underlying the effects of EA treatment on hippocampal synaptic transmission efficiency and plasticity in rats with VCI. Methods. Sprague–Dawley rats were subjected to VCI with bilateral common carotid occlusion (2VO). EA stimulation was applied to Baihui (GV20) and Shenting (GV24) acupoints for 30 min once a day, five times a week, for four weeks. Our study also included nonacupoint groups to confirm the specificity of EA therapy. The Morris water maze (MWM) was used to assess cognitive function. Electrophysiological techniques were used to detect the field characteristics of the hippocampal CA3–CA1 circuit in each group of rats, including input-output (I/O), paired-pulse facilitation ratios (PPR), field excitatory postsynaptic potential (fEPSP), and excitatory postsynaptic current (EPSC). The expression of synapse- and calcium-mediated signal transduction associated proteins was detected through western blotting. Results. The MWM behavioural results showed that EA significantly improved cognitive function in VCI model rats. EA increased the I/O curve of VCI model rats from 20 to 90 μA. No significant differences were observed in hippocampal PPR. The fEPSP of the hippocampal CA3–CA1 circuit was significantly increased after EA treatment compared with that after nonacupuncture treatment. We found that EA led to an increase in the EPSC amplitude and frequency, especially in the decay and rise times. In addition, the protein expression and phosphorylation levels of N-methyl-D-aspartate receptor 2B, α-amino-3-hydroxy-5-methyl-4-isoxazole propionate receptor 1, and Ca2+-calmodulin-dependent protein kinase II increased to varying degrees in the hippocampus of VCI model rats. Conclusion. EA at GV20 and GV24 acupoints increased the basic synaptic transmission efficiency and synaptic plasticity of the hippocampal CA3–CA1 circuit, thereby improving learning and memory ability in rats with VCI.
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Jung YS. Natural Antioxidant in Cardiovascular and Cerebrovascular Diseases. Antioxidants (Basel) 2022; 11:antiox11061159. [PMID: 35740056 PMCID: PMC9220211 DOI: 10.3390/antiox11061159] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Accepted: 06/10/2022] [Indexed: 02/01/2023] Open
Affiliation(s)
- Yi-Sook Jung
- College of Pharmacy, Research Institute of Pharmaceutical Sciences and Technology, Ajou University, Suwon 16499, Korea
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14
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Kim Y, Cho AY, Kim HC, Ryu D, Jo SA, Jung YS. Effects of Natural Polyphenols on Oxidative Stress-Mediated Blood–Brain Barrier Dysfunction. Antioxidants (Basel) 2022; 11:antiox11020197. [PMID: 35204080 PMCID: PMC8868362 DOI: 10.3390/antiox11020197] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Revised: 01/14/2022] [Accepted: 01/17/2022] [Indexed: 02/01/2023] Open
Abstract
The blood-brain barrier (BBB), which consists mainly of brain microvascular endothelial cells and astrocytes connected by tight junctions (TJs) and adhesion molecules (AMs), maintains the homeostatic balance between brain parenchyma and extracellular fluid. Accumulating evidence shows that BBB dysfunction is a common feature of neurodegenerative diseases, including stroke, traumatic brain injury, and Alzheimer’s disease. Among the various pathological pathways of BBB dysfunction, reactive oxygen species (ROS) are known to play a key role in inducing BBB disruption mediated via TJ modification, AM induction, cytoskeletal reorganization, and matrix metalloproteinase activation. Thus, antioxidants have been suggested to exert beneficial effects on BBB dysfunction-associated brain diseases. In this review, we summarized the sources of ROS production in multiple cells that constitute or surround the BBB, such as BBB endothelial cells, astrocytes, microglia, and neutrophils. We also reviewed various pathological mechanisms by which BBB disruption is caused by ROS in these cells. Finally, we summarized the effects of various natural polyphenols on BBB dysfunction to suggest a therapeutic strategy for BBB disruption-related brain diseases.
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Affiliation(s)
- Yeonjae Kim
- College of Pharmacy, Ajou University, Suwon 16499, Korea; (Y.K.); (A.Y.C.); (H.C.K.); (D.R.)
- Research Institute of Pharmaceutical Sciences and Technology, Ajou University, Suwon 16499, Korea
| | - A Yeon Cho
- College of Pharmacy, Ajou University, Suwon 16499, Korea; (Y.K.); (A.Y.C.); (H.C.K.); (D.R.)
| | - Hong Cheol Kim
- College of Pharmacy, Ajou University, Suwon 16499, Korea; (Y.K.); (A.Y.C.); (H.C.K.); (D.R.)
| | - Dajung Ryu
- College of Pharmacy, Ajou University, Suwon 16499, Korea; (Y.K.); (A.Y.C.); (H.C.K.); (D.R.)
- Research Institute of Pharmaceutical Sciences and Technology, Ajou University, Suwon 16499, Korea
| | - Sangmee Ahn Jo
- Department of Nanobiomedical Science & BK21 NBM Global Research Center for Regenerative Medicine, Dankook University, Cheonan 31116, Korea;
- Department of Pharmacology, College of Pharmacy, Dankook University, Cheonan 31116, Korea
| | - Yi-Sook Jung
- College of Pharmacy, Ajou University, Suwon 16499, Korea; (Y.K.); (A.Y.C.); (H.C.K.); (D.R.)
- Research Institute of Pharmaceutical Sciences and Technology, Ajou University, Suwon 16499, Korea
- Correspondence: ; Tel.: +82-31-219-3444
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15
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Amiri P, DeCastro J, Littig J, Lu H, Liu C, Conboy I, Aran K. Erythrocytes, a New Contributor to Age-Associated Loss of Blood-Brain Barrier Integrity. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2021; 8:e2101912. [PMID: 34396716 PMCID: PMC8529433 DOI: 10.1002/advs.202101912] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Revised: 07/26/2021] [Indexed: 05/06/2023]
Abstract
Blood exchanges between young and old partners demonstrate old blood has a detrimental effect on brain health of young animals. Previous studies primarily investigate soluble blood factors, such as transforming growth factor-beta, on the brain and the blood-brain barrier (BBB). However, the role of blood cellular components, particularly erythrocytes, has not been defined. Erythrocyte morphology and rigidity change as mammals age, altering their transport within the capillary bed. This impacts downstream biological events, such as the release of reactive oxygen species and hemoglobin, potentially compromising the BBB. Here, a micro electrical BBB (µE-BBB), with cocultured endothelial and astrocytic cells, and a built-in trans-endothelial electrical resistance (TEER) system is described to monitor the effect of capillary shear stress on erythrocytes derived from young and old mice and people and the subsequent effects of these cells on BBB integrity. This is monitored by the passage of fluorescein isothiocyanate-dextran and real-time profiling of TEER across the BBB after old and young erythrocyte exposure. Compared to young erythrocytes, old erythrocytes induce an increased permeability by 42% and diminished TEER by 2.9% of the µE-BBB. These results suggest that changes in circulating erythrocytes are a biomarker of aging in the context of BBB integrity.
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Affiliation(s)
- Payam Amiri
- Henry E. Riggs School of Applied Life SciencesKeck Graduate InstituteClaremontCA91711USA
| | - Jonalyn DeCastro
- Henry E. Riggs School of Applied Life SciencesKeck Graduate InstituteClaremontCA91711USA
| | - Joshua Littig
- Henry E. Riggs School of Applied Life SciencesKeck Graduate InstituteClaremontCA91711USA
| | - Hsiang‐Wei Lu
- Henry E. Riggs School of Applied Life SciencesKeck Graduate InstituteClaremontCA91711USA
| | - Chao Liu
- Department of BioengineeringUniversity of California, BerkeleyBerkeleyCA94720USA
| | - Irina Conboy
- Department of BioengineeringUniversity of California, BerkeleyBerkeleyCA94720USA
| | - Kiana Aran
- Henry E. Riggs School of Applied Life SciencesKeck Graduate InstituteClaremontCA91711USA
- Department of BioengineeringUniversity of California, BerkeleyBerkeleyCA94720USA
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16
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Wen S, Wang L, Zou H, Gu J, Song R, Bian J, Yuan Y, Liu Z. Puerarin Attenuates Cadmium-Induced Neuronal Injury via Stimulating Cadmium Excretion, Inhibiting Oxidative Stress and Apoptosis. Biomolecules 2021; 11:biom11070978. [PMID: 34356602 PMCID: PMC8301907 DOI: 10.3390/biom11070978] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Revised: 06/29/2021] [Accepted: 06/30/2021] [Indexed: 12/29/2022] Open
Abstract
Cadmium (Cd) is a potential pathogenic factor in the nervous system associated with various neurodegenerative disorders. Puerarin (Pur) is an isoflavone purified from the Chinese medical herb, kudzu root, and exhibits antioxidant and antiapoptotic properties in the brain. In this study, the detailed mechanisms underlying the neuroprotective potential of Pur against Cd-induced neuronal injury was evaluated for the first time in vivo in a rat model and in vitro using primary rat cerebral cortical neurons. The results of the in vivo experiments showed that Pur ameliorated Cd-induced neuronal injury, reduced Cd levels in the cerebral cortices, and stimulated Cd excretion in Cd-treated rats. We also observed that the administration of Pur rescued Cd-induced oxidative stress, and attenuated Cd-induced apoptosis by concomitantly suppressing both the Fas/FasL and mitochondrial pathways in the cerebral cortical neurons of rats both in vivo and in vitro. Our results demonstrate that Pur exerted its neuroprotective effects by stimulating Cd excretion, ameliorating Cd-induced oxidative stress and apoptosis in rat cerebral cortical neurons.
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Affiliation(s)
- Shuangquan Wen
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China; (S.W.); (L.W.); (H.Z.); (J.G.); (R.S.); (J.B.)
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 225009, China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, The Ministry of Education of China, Yangzhou University, Yangzhou 225009, China
| | - Li Wang
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China; (S.W.); (L.W.); (H.Z.); (J.G.); (R.S.); (J.B.)
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 225009, China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, The Ministry of Education of China, Yangzhou University, Yangzhou 225009, China
| | - Hui Zou
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China; (S.W.); (L.W.); (H.Z.); (J.G.); (R.S.); (J.B.)
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 225009, China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, The Ministry of Education of China, Yangzhou University, Yangzhou 225009, China
| | - Jianhong Gu
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China; (S.W.); (L.W.); (H.Z.); (J.G.); (R.S.); (J.B.)
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 225009, China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, The Ministry of Education of China, Yangzhou University, Yangzhou 225009, China
| | - Ruilong Song
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China; (S.W.); (L.W.); (H.Z.); (J.G.); (R.S.); (J.B.)
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 225009, China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, The Ministry of Education of China, Yangzhou University, Yangzhou 225009, China
| | - Jianchun Bian
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China; (S.W.); (L.W.); (H.Z.); (J.G.); (R.S.); (J.B.)
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 225009, China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, The Ministry of Education of China, Yangzhou University, Yangzhou 225009, China
| | - Yan Yuan
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China; (S.W.); (L.W.); (H.Z.); (J.G.); (R.S.); (J.B.)
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 225009, China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, The Ministry of Education of China, Yangzhou University, Yangzhou 225009, China
- Correspondence: (Y.Y.); (Z.L.)
| | - Zongping Liu
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China; (S.W.); (L.W.); (H.Z.); (J.G.); (R.S.); (J.B.)
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 225009, China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, The Ministry of Education of China, Yangzhou University, Yangzhou 225009, China
- Correspondence: (Y.Y.); (Z.L.)
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17
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Baek SJ, Hammock BD, Hwang IK, Li Q, Moustaid-Moussa N, Park Y, Safe S, Suh N, Yi SS, Zeldin DC, Zhong Q, Bradbury JA, Edin ML, Graves JP, Jung HY, Jung YH, Kim MB, Kim W, Lee J, Li H, Moon JS, Yoo ID, Yue Y, Lee JY, Han HJ. Natural Products in the Prevention of Metabolic Diseases: Lessons Learned from the 20th KAST Frontier Scientists Workshop. Nutrients 2021; 13:1881. [PMID: 34072678 PMCID: PMC8227583 DOI: 10.3390/nu13061881] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Revised: 05/20/2021] [Accepted: 05/20/2021] [Indexed: 12/29/2022] Open
Abstract
The incidence of metabolic and chronic diseases including cancer, obesity, inflammation-related diseases sharply increased in the 21st century. Major underlying causes for these diseases are inflammation and oxidative stress. Accordingly, natural products and their bioactive components are obvious therapeutic agents for these diseases, given their antioxidant and anti-inflammatory properties. Research in this area has been significantly expanded to include chemical identification of these compounds using advanced analytical techniques, determining their mechanism of action, food fortification and supplement development, and enhancing their bioavailability and bioactivity using nanotechnology. These timely topics were discussed at the 20th Frontier Scientists Workshop sponsored by the Korean Academy of Science and Technology, held at the University of Hawaii at Manoa on 23 November 2019. Scientists from South Korea and the U.S. shared their recent research under the overarching theme of Bioactive Compounds, Nanoparticles, and Disease Prevention. This review summarizes presentations at the workshop to provide current knowledge of the role of natural products in the prevention and treatment of metabolic diseases.
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Affiliation(s)
- Seung J. Baek
- College of Veterinary Medicine, Seoul National University, Seoul 08826, Korea; (S.J.B.); (I.-K.H.); (H.-Y.J.); (Y.-H.J.); (W.K.); (J.L.)
| | - Bruce D. Hammock
- Department of Entomology, University of California, Davis, CA 95616, USA;
| | - In-Koo Hwang
- College of Veterinary Medicine, Seoul National University, Seoul 08826, Korea; (S.J.B.); (I.-K.H.); (H.-Y.J.); (Y.-H.J.); (W.K.); (J.L.)
| | - Qingxiao Li
- Department of Molecular Biosciences and Bioengineering, University of Hawaii at Manoa, Honolulu, HI 96822, USA;
| | - Naima Moustaid-Moussa
- Department of Nutritional Sciences & Obesity Research Institute, Texas Tech University, Lubbock, TX 79409, USA;
| | - Yeonhwa Park
- Department of Food Science, University of Massachusetts, Amherst, MA 01003, USA; (Y.P.); (Y.Y.)
| | - Stephen Safe
- Department of Biochemistry & Biophysics, Texas A & M University, College Station, TX 77843, USA;
| | - Nanjoo Suh
- Department of Chemical Biology, Ernest Mario School of Pharmacy, Rutgers University, Piscataway, NJ 08854, USA;
| | - Sun-Shin Yi
- Department of Medical Sciences, Soonchunhyang University, Asan 31538, Korea; (S.-S.Y.); (J.-S.M.); (I.-D.Y.)
| | - Darryl C. Zeldin
- National Institutes of Environmental Health, National Institutes of Health, Research Triangle Park, NC 27709, USA; (D.C.Z.); (J.A.B.); (M.L.E.); (J.P.G.); (H.L.)
| | - Qixin Zhong
- Department of Food Sciences, University of Tennessee, Knoxville, TN 37996, USA;
| | - Jennifer Alyce Bradbury
- National Institutes of Environmental Health, National Institutes of Health, Research Triangle Park, NC 27709, USA; (D.C.Z.); (J.A.B.); (M.L.E.); (J.P.G.); (H.L.)
| | - Matthew L. Edin
- National Institutes of Environmental Health, National Institutes of Health, Research Triangle Park, NC 27709, USA; (D.C.Z.); (J.A.B.); (M.L.E.); (J.P.G.); (H.L.)
| | - Joan P. Graves
- National Institutes of Environmental Health, National Institutes of Health, Research Triangle Park, NC 27709, USA; (D.C.Z.); (J.A.B.); (M.L.E.); (J.P.G.); (H.L.)
| | - Hyo-Young Jung
- College of Veterinary Medicine, Seoul National University, Seoul 08826, Korea; (S.J.B.); (I.-K.H.); (H.-Y.J.); (Y.-H.J.); (W.K.); (J.L.)
| | - Young-Hyun Jung
- College of Veterinary Medicine, Seoul National University, Seoul 08826, Korea; (S.J.B.); (I.-K.H.); (H.-Y.J.); (Y.-H.J.); (W.K.); (J.L.)
| | - Mi-Bo Kim
- Department of Nutritional Sciences, University of Connecticut, Storrs, CT 06269, USA;
| | - Woosuk Kim
- College of Veterinary Medicine, Seoul National University, Seoul 08826, Korea; (S.J.B.); (I.-K.H.); (H.-Y.J.); (Y.-H.J.); (W.K.); (J.L.)
| | - Jaehak Lee
- College of Veterinary Medicine, Seoul National University, Seoul 08826, Korea; (S.J.B.); (I.-K.H.); (H.-Y.J.); (Y.-H.J.); (W.K.); (J.L.)
| | - Hong Li
- National Institutes of Environmental Health, National Institutes of Health, Research Triangle Park, NC 27709, USA; (D.C.Z.); (J.A.B.); (M.L.E.); (J.P.G.); (H.L.)
| | - Jong-Seok Moon
- Department of Medical Sciences, Soonchunhyang University, Asan 31538, Korea; (S.-S.Y.); (J.-S.M.); (I.-D.Y.)
| | - Ik-Dong Yoo
- Department of Medical Sciences, Soonchunhyang University, Asan 31538, Korea; (S.-S.Y.); (J.-S.M.); (I.-D.Y.)
| | - Yiren Yue
- Department of Food Science, University of Massachusetts, Amherst, MA 01003, USA; (Y.P.); (Y.Y.)
| | - Ji-Young Lee
- Department of Nutritional Sciences, University of Connecticut, Storrs, CT 06269, USA;
| | - Ho-Jae Han
- College of Veterinary Medicine, Seoul National University, Seoul 08826, Korea; (S.J.B.); (I.-K.H.); (H.-Y.J.); (Y.-H.J.); (W.K.); (J.L.)
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18
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Lee MJ, Jang Y, Zhu J, Namgung E, Go D, Seo C, Ju X, Cui J, Lee YL, Kang H, Kim H, Chung W, Heo JY. Auraptene Enhances Junction Assembly in Cerebrovascular Endothelial Cells by Promoting Resilience to Mitochondrial Stress through Activation of Antioxidant Enzymes and mtUPR. Antioxidants (Basel) 2021; 10:475. [PMID: 33802930 PMCID: PMC8002628 DOI: 10.3390/antiox10030475] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2021] [Revised: 03/04/2021] [Accepted: 03/15/2021] [Indexed: 02/06/2023] Open
Abstract
Junctional proteins in cerebrovascular endothelial cells are essential for maintaining the barrier function of the blood-brain barrier (BBB), thus protecting the brain from the infiltration of pathogens. The present study showed that the potential therapeutic natural compound auraptene (AUR) enhances junction assembly in cerebrovascular endothelial cells by inducing antioxidant enzymes and the mitochondrial unfolded protein response (mtUPR). Treatment of mouse cerebrovascular endothelial cells with AUR enhanced the expression of junctional proteins, such as occludin, zonula occludens-1 (ZO-1) and vascular endothelial cadherin (VE-cadherin), by increasing the levels of mRNA encoding antioxidant enzymes. AUR treatment also resulted in the depolarization of mitochondrial membrane potential and activation of mtUPR. The ability of AUR to protect against ischemic conditions was further assessed using cells deprived of oxygen and glucose. Pretreatment of these cells with AUR protected against damage to junctional proteins, including occludin, claudin-5, ZO-1 and VE-cadherin, accompanied by a stress resilience response regulated by levels of ATF5, LONP1 and HSP60 mRNAs. Collectively, these results indicate that AUR promotes resilience against oxidative stress and improves junction assembly, suggesting that AUR may help maintain intact barriers in cerebrovascular endothelial cells.
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Affiliation(s)
- Min Joung Lee
- Department of Medical Science, Chungnam National University School of Medicine, Daejeon 35015, Korea
- Department of Biochemistry, Chungnam National University School of Medicine, Daejeon 35015, Korea
- Infection Control Convergence Research Center, Chungnam National University School of Medicine, Daejeon 35015, Korea
| | - Yunseon Jang
- Department of Medical Science, Chungnam National University School of Medicine, Daejeon 35015, Korea
- Department of Biochemistry, Chungnam National University School of Medicine, Daejeon 35015, Korea
- Infection Control Convergence Research Center, Chungnam National University School of Medicine, Daejeon 35015, Korea
| | - Jiebo Zhu
- Department of Medical Science, Chungnam National University School of Medicine, Daejeon 35015, Korea
- Department of Biochemistry, Chungnam National University School of Medicine, Daejeon 35015, Korea
- Infection Control Convergence Research Center, Chungnam National University School of Medicine, Daejeon 35015, Korea
| | - Eunji Namgung
- Department of Medical Science, Chungnam National University School of Medicine, Daejeon 35015, Korea
- Department of Biochemistry, Chungnam National University School of Medicine, Daejeon 35015, Korea
- Infection Control Convergence Research Center, Chungnam National University School of Medicine, Daejeon 35015, Korea
| | - Dahyun Go
- Department of Medical Science, Chungnam National University School of Medicine, Daejeon 35015, Korea
- Department of Biochemistry, Chungnam National University School of Medicine, Daejeon 35015, Korea
- Infection Control Convergence Research Center, Chungnam National University School of Medicine, Daejeon 35015, Korea
| | - Changjun Seo
- Department of Medical Science, Chungnam National University School of Medicine, Daejeon 35015, Korea
- Department of Biochemistry, Chungnam National University School of Medicine, Daejeon 35015, Korea
- Infection Control Convergence Research Center, Chungnam National University School of Medicine, Daejeon 35015, Korea
| | - Xianshu Ju
- Department of Medical Science, Chungnam National University School of Medicine, Daejeon 35015, Korea
- Infection Control Convergence Research Center, Chungnam National University School of Medicine, Daejeon 35015, Korea
| | - Jianchen Cui
- Department of Medical Science, Chungnam National University School of Medicine, Daejeon 35015, Korea
- Infection Control Convergence Research Center, Chungnam National University School of Medicine, Daejeon 35015, Korea
| | - Yu Lim Lee
- Department of Medical Science, Chungnam National University School of Medicine, Daejeon 35015, Korea
- Infection Control Convergence Research Center, Chungnam National University School of Medicine, Daejeon 35015, Korea
| | - Hyoeun Kang
- Department of Medical Science, Chungnam National University School of Medicine, Daejeon 35015, Korea
- Department of Biochemistry, Chungnam National University School of Medicine, Daejeon 35015, Korea
| | - Hyeongseok Kim
- Department of Medical Science, Chungnam National University School of Medicine, Daejeon 35015, Korea
- Department of Biochemistry, Chungnam National University School of Medicine, Daejeon 35015, Korea
| | - Woosuk Chung
- Department of Medical Science, Chungnam National University School of Medicine, Daejeon 35015, Korea
- Department of Anesthesiology and Pain Medicine, Chungnam National University School of Medicine, Daejeon 35015, Korea
- Department of Anesthesiology and Pain Medicine, Chungnam National University Hospital, Daejeon 35015, Korea
| | - Jun Young Heo
- Department of Medical Science, Chungnam National University School of Medicine, Daejeon 35015, Korea
- Department of Biochemistry, Chungnam National University School of Medicine, Daejeon 35015, Korea
- Infection Control Convergence Research Center, Chungnam National University School of Medicine, Daejeon 35015, Korea
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19
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Pontifex MG, Malik MMAH, Connell E, Müller M, Vauzour D. Citrus Polyphenols in Brain Health and Disease: Current Perspectives. Front Neurosci 2021; 15:640648. [PMID: 33679318 PMCID: PMC7933480 DOI: 10.3389/fnins.2021.640648] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2020] [Accepted: 01/25/2021] [Indexed: 12/17/2022] Open
Abstract
In addition to essential micronutrients such as vitamin C, citrus fruits represent a considerably rich source of non-essential bioactive compounds, in particular flavanones which form a sub-set of the flavonoid group. Preclinical studies have demonstrated the neuroprotective potential of citrus flavonoids and have highlighted both the well-established (anti-inflammatory and anti-oxidative properties), and newly emerging (influence upon blood-brain barrier function/integrity) mechanistic actions by which these neurological effects are mediated. Encouragingly, results from human studies, although limited in number, appear to support this preclinical basis, with improvements in cognitive performance and disease risk observed across healthy and disease states. Therefore, citrus fruits - both as whole fruit and 100% juices - should be encouraged within the diet for their potential neurological benefit. In addition, there should be further exploration of citrus polyphenols to establish therapeutic efficacy, particularly in the context of well-designed human interventions.
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Affiliation(s)
- Matthew G Pontifex
- Norwich Medical School, Biomedical Research Centre, Faculty of Medicine and Health Sciences, University of East Anglia, Norwich, United Kingdom
| | - Mohammad M A H Malik
- Norwich Medical School, Biomedical Research Centre, Faculty of Medicine and Health Sciences, University of East Anglia, Norwich, United Kingdom
| | - Emily Connell
- Norwich Medical School, Biomedical Research Centre, Faculty of Medicine and Health Sciences, University of East Anglia, Norwich, United Kingdom
| | - Michael Müller
- Norwich Medical School, Biomedical Research Centre, Faculty of Medicine and Health Sciences, University of East Anglia, Norwich, United Kingdom
| | - David Vauzour
- Norwich Medical School, Biomedical Research Centre, Faculty of Medicine and Health Sciences, University of East Anglia, Norwich, United Kingdom
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