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Zhao J, Wei M, Guo M, Wang M, Niu H, Xu T, Zhou Y. GSK3: A potential target and pending issues for treatment of Alzheimer's disease. CNS Neurosci Ther 2024; 30:e14818. [PMID: 38946682 PMCID: PMC11215492 DOI: 10.1111/cns.14818] [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: 04/22/2024] [Revised: 05/21/2024] [Accepted: 05/27/2024] [Indexed: 07/02/2024] Open
Abstract
Glycogen synthase kinase-3 (GSK3), consisting of GSK3α and GSK3β subtypes, is a complex protein kinase that regulates numerous substrates. Research has observed increased GSK3 expression in the brains of Alzheimer's disease (AD) patients and models. AD is a neurodegenerative disorder with diverse pathogenesis and notable cognitive impairments, characterized by Aβ aggregation and excessive tau phosphorylation. This article provides an overview of GSK3's structure and regulation, extensively analyzing its relationship with AD factors. GSK3 overactivation disrupts neural growth, development, and function. It directly promotes tau phosphorylation, regulates amyloid precursor protein (APP) cleavage, leading to Aβ formation, and directly or indirectly triggers neuroinflammation and oxidative damage. We also summarize preclinical research highlighting the inhibition of GSK3 activity as a primary therapeutic approach for AD. Finally, pending issues like the lack of highly specific and affinity-driven GSK3 inhibitors, are raised and expected to be addressed in future research. In conclusion, GSK3 represents a target in AD treatment, filled with hope, challenges, opportunities, and obstacles.
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Affiliation(s)
- Jiahui Zhao
- School of Basic Medical SciencesZhejiang Chinese Medical UniversityHangzhouChina
| | - Mengying Wei
- College of Pharmaceutical SciencesZhejiang UniversityHangzhouChina
- Future Health Laboratory, Innovation Center of Yangtze River DeltaZhejiang UniversityJiaxingChina
| | - Minsong Guo
- College of Pharmaceutical SciencesZhejiang UniversityHangzhouChina
- Cangnan County Qiushi Innovation Research Institute of Traditional Chinese MedicineWenzhouChina
| | - Mengyao Wang
- School of Basic Medical SciencesZhejiang Chinese Medical UniversityHangzhouChina
| | - Hongxia Niu
- School of Basic Medical SciencesZhejiang Chinese Medical UniversityHangzhouChina
- Key Laboratory of Blood‐stasis‐toxin Syndrome of Zhejiang ProvinceHangzhouChina
| | - Tengfei Xu
- College of Pharmaceutical SciencesZhejiang UniversityHangzhouChina
- Cangnan County Qiushi Innovation Research Institute of Traditional Chinese MedicineWenzhouChina
| | - Yuan Zhou
- School of Basic Medical SciencesZhejiang Chinese Medical UniversityHangzhouChina
- Key Laboratory of Blood‐stasis‐toxin Syndrome of Zhejiang ProvinceHangzhouChina
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2
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Gaber A, Ahmed OM, Khadrawy YA, Zoheir KMA, Abo-ELeneen RE, Alblihed MA, Elbakry AM. Mesenchymal Stem Cells and Begacestat Mitigate Amyloid-β 25-35-Induced Cognitive Decline in Rat Dams and Hippocampal Deteriorations in Offspring. BIOLOGY 2023; 12:905. [PMID: 37508337 PMCID: PMC10376406 DOI: 10.3390/biology12070905] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2023] [Revised: 06/11/2023] [Accepted: 06/21/2023] [Indexed: 07/30/2023]
Abstract
Alzheimer's disease (AD) is the most common cause of age-related neurodegeneration and cognitive decline. AD more commonly occurs in females than in males, so it is necessary to consider new treatments specifically targeting this population. The present study investigated the protective effects of Begacestat (γ-secretase inhibitor-953, GSI-953) and bone marrow-derived mesenchymal stem cells (BM-MSCs) during pregnancy on cognitive impairment in rat dams and neurodegeneration in offspring caused by the intracerebroventricular injection of Aβ 25-35 before pregnancy. The performances of dams injected with amyloid-β 25-35 (Aβ 25-35) during behavioral tests were significantly impaired. The offspring of Aβ 25-35-injected dams treated with BM-MSCs or GSI-953 showed a dramatically reduced number and size of activated microglial cells, enhancement in the processes length, and a decrease in the proinflammatory cytokine levels. Additionally, BM-MSC or GSI-953 therapy reduced Aβ 25-35-induced increases in tau phosphorylation and amyloid precursor protein levels in the neonates' hippocampus and elevated the lower levels of glycogen synthase kinase-3 and brain-derived neurotrophic factor; moreover, reversed Aβ 25-35-induced alterations in gene expression in the neonatal hippocampus. Finally, the treatments with BM-MSC or GSI-953 are globally beneficial against Aβ 25-35-induced brain alterations, particularly by suppressing neural inflammation, inhibiting microglial cell activation, restoring developmental plasticity, and increasing neurotrophic signaling.
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Affiliation(s)
- Asmaa Gaber
- Comparative Anatomy and Embryology Division, Department of Zoology, Faculty of Science, Beni-Suef University, Beni-Suef P.O. Box 62521, Egypt
| | - Osama M Ahmed
- Physiology Division, Department of Zoology, Faculty of Science, Beni-Suef University, Beni-Suef P.O. Box 62521, Egypt
| | - Yasser A Khadrawy
- Medical Physiology Department, National Research Center, Giza P.O. Box 12622, Egypt
| | - Khairy M A Zoheir
- Cell Biology Department, National Research Center, Giza P.O. Box 12622, Egypt
| | - Rasha E Abo-ELeneen
- Comparative Anatomy and Embryology Division, Department of Zoology, Faculty of Science, Beni-Suef University, Beni-Suef P.O. Box 62521, Egypt
| | - Mohamed A Alblihed
- Department of Medical Microbiology, college of medicine, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia
| | - Ahlam M Elbakry
- Comparative Anatomy and Embryology Division, Department of Zoology, Faculty of Science, Beni-Suef University, Beni-Suef P.O. Box 62521, Egypt
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3
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Gaber A, Elbakry AM, Aljarari RM, Jaber FA, Khadrawy YA, Sabry D, Abo-ELeneen RE, Ahmed OM. Bone Marrow-Derived Mesenchymal Stem Cells and γ-Secretase Inhibitor Treatments Suppress Amyloid- β25-35-Induced Cognitive Impairment in Rat Dams and Cortical Degeneration in Offspring. Stem Cells Int 2023; 2023:2690949. [PMID: 37274020 PMCID: PMC10234728 DOI: 10.1155/2023/2690949] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Revised: 04/02/2023] [Accepted: 05/02/2023] [Indexed: 06/06/2023] Open
Abstract
Alzheimer's disease (AD) is the most frequent cause of age-related neurodegeneration and ensuing cognitive impairment. Progressive deposition of extracellular amyloid beta (Aβ) aggregates (plaques) and intracellular hyperphosphorylated Tau protein (p-Tau) are the core pathological markers of AD but may precede clinical symptoms by many years, presenting a therapeutic window of opportunity. Females are more frequently afflicted by AD than males, necessitating evaluation of novel treatments for the female population. The current study examined the protective efficacies of intravenous bone marrow-derived mesenchymal stem cells (BM-MSCs) and oral gamma-secretase inhibitor-953 (GSI-953) during pregnancy on cognitive impairment in rat dams and neurodegeneration in offspring induced by intracerebroventricular injection of Aβ25-35 prior to pregnancy. The Aβ25-35 (AD) group exhibited significant (P < 0.001) impairments in the Y-maze and novel object recognition test performance prior to conception. Histological analysis of the offspring cortex revealed substantial dendritic shrinkage and activation of microglial cells, while neurochemical analysis demonstrated significant increases in the proinflammatory cytokine interleukin-1β (IL-1β) and tumor necrosis factor-α (TNF-α). In contrast, BM-MSC or GSI-953 treatment of dams following Aβ25-35 injection significantly (P < 0.001) reduced the number and size of activated microglial cells, markedly increased dendrite length, and reversed proinflammatory cytokine elevations in offspring. Moreover, BM-MSC or GSI-953 treatment reversed the Aβ25-35-induced amyloid precursor protein and p-Tau elevations in the offspring brain; these changes were accompanied by upregulation of the brain-derived neurotrophic factor and downregulation of glycogen synthase kinase-3β in the serum and brain. Treatment with BM-MSCs or GSI-953 also reversed Aβ25-35-induced elevations in different gene expressions in the neonatal cortex. Finally, treatment of dams with BM-MSCs or GSI-953 prevented the Aβ25-35-induced disruption of newborn brain development. Thus, BM-MSC and GSI-953 treatments have broad-spectrum effects against Aβ25-35-induced brain pathology, including the suppression of neural inflammation, restoration of developmental plasticity, and promotion of neurotrophic signaling.
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Affiliation(s)
- Asmaa Gaber
- Comparative Anatomy and Embryology Division, Department of Zoology, Faculty of Science, Beni-Suef University, P.O. Box 62521, Beni Suef, Egypt
| | - Ahlam M. Elbakry
- Comparative Anatomy and Embryology Division, Department of Zoology, Faculty of Science, Beni-Suef University, P.O. Box 62521, Beni Suef, Egypt
| | - Rabab M. Aljarari
- Department of Biology, College of Science, University of Jeddah, Jeddah 21589, Saudi Arabia
| | - Fatima A. Jaber
- Department of Biology, College of Science, University of Jeddah, Jeddah 21589, Saudi Arabia
| | - Yasser A. Khadrawy
- Medical Physiology Department, Medical Branch Department, National Research Center, Giza, Egypt
| | - Dina Sabry
- Medical Biochemistry and Molecular Biology Department, Faculty of Medicine, Badr University in Cairo, Cairo 11829, Egypt
- Medical Biochemistry and Molecular Biology Department, Faculty of Medicine, Cairo University, Cairo 11562, Egypt
| | - Rasha E. Abo-ELeneen
- Comparative Anatomy and Embryology Division, Department of Zoology, Faculty of Science, Beni-Suef University, P.O. Box 62521, Beni Suef, Egypt
| | - Osama M. Ahmed
- Physiology Division, Department of Zoology, Faculty of Science, Beni-Suef University, P.O. Box 62521, Beni Suef, Egypt
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4
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Zhang RL, Lei BX, Wu GY, Wang YY, Huang QH. Protective effects of berberine against β-amyloid-induced neurotoxicity in HT22 cells via the Nrf2/HO-1 pathway. Bioorg Chem 2023; 133:106210. [PMID: 36724611 DOI: 10.1016/j.bioorg.2022.106210] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Revised: 09/21/2022] [Accepted: 10/11/2022] [Indexed: 02/03/2023]
Abstract
Neuronal apoptosis has been found to have a pivotal role in the course of Alzheimer's disease (AD). Berberine (BBR), a potent antioxidant, occurs in plants such as Berberis, Phellodendron chinense, and Hydrastis canadensis. In this study, a neuronal apoptotic model was established in vitro using HT22 cells induced by Aβ25-35 to explore whether BBR contributes to protecting neurons against Aβ25-35-induced neurotoxicity, as well as its potential mechanisms. BBR was applied to HT22 cells for 1 h prior to exposing the cells to Aβ25-35 for 24 h. A CCK-8 assay was utilized to assess cell viability, and Annexin V - fluorescein isothiocyanate (FITC)/propidium iodide and Hoechst 33342 fluorescence staining were used to measure the rate of cell apoptosis. Existing scientific literature was also reviewed to further determine the effects of BBR on ROS production and mitochondrial function in HT22 cells. Furthermore, the expressions of proteins, including cytochrome C, cleaved caspase-3, p-p65, p65, and Nrf2/HO-1 antioxidant axis were assessed by Western blotting. The data indicated that BBR markedly improved cell viability, inhibited apoptosis and intracellular ROS levels, improved mitochondrial membrane potentials, decreased the rate of p-p65/p65, cytochrome C, and cleaved caspase-3, and intensified the activity of Nrf2/HO-1 antioxidants in HT22 cells. Overall, the findings indicated that BBR provides a certain level of neuroprotectiveness in HT22 cells exposed to Aβ25-35 via relieving oxidative stress, as well as by restraining the mitochondrial pathway of cellular apoptosis. In addition, the restraint of NF-κB activity and sensitization of the Nrf2/HO-1 antioxidant axis, which together are intimately involved in the neuroprotection of BBR, may be possible mechanisms accounting for its effectiveness against Aβ25-35in vitro.
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Affiliation(s)
- Ru-Lan Zhang
- Department of Chinese Medicine, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong Province 510080, China
| | - Bing-Xi Lei
- Department of Neurosurgery, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong Province 510120, China
| | - Guo-Yong Wu
- Department of Thoracic Surgery, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong Province 510080, China
| | - Yuan-Yuan Wang
- Department of Chinese Medicine, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong Province 510080, China
| | - Qi-Hui Huang
- Department of Chinese Medicine, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong Province 510120, China.
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5
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Punmiya A, Prabhu A. Structural fingerprinting of pleiotropic flavonoids for multifaceted Alzheimer's disease. Neurochem Int 2023; 163:105486. [PMID: 36641110 DOI: 10.1016/j.neuint.2023.105486] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2022] [Revised: 12/13/2022] [Accepted: 01/09/2023] [Indexed: 01/13/2023]
Abstract
Alzheimer's disease has emerged as one of the most challenging neurodegenerative diseases associated with dementia, loss of cognitive functioning and memory impairment. Despite enormous efforts to identify disease modifying technologies, the repertoire of currently approved drugs consists of a few symptomatic candidates that are not capable of halting disease progression. Moreover, these single mechanism drugs target only a small part of the pathological cascade and do not address most of the etiological basis of the disease. Development of therapies that are able to simultaneously tackle all the multiple interlinked causative factors such as amyloid protein aggregation, tau hyperphosphorylation, cholinergic deficit, oxidative stress, metal dyshomeostasis and neuro-inflammation has become the focus of intensive research in this domain. Flavonoids are natural phytochemicals that have demonstrated immense potential as medicinal agents due to their multiple beneficial therapeutic effects. The polypharmacological profile of flavonoids aligns well with the multifactorial pathological landscape of Alzheimer's disease, making them promising candidates to overcome the challenges of this neurodegenerative disorder. This review presents a detailed overview of the pleiotropic biology of flavonoids favourable for Alzheimer therapeutics and the structural basis for these effects. Structure activity trends for several flavonoid classes such as flavones, flavonols, flavanones, isoflavones, flavanols and anthocyanins are comprehensively analyzed in detail and presented.
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Affiliation(s)
- Amisha Punmiya
- Department of Quality Assurance, SVKM's Dr. Bhanuben Nanavati College of Pharmacy, Mumbai, India
| | - Arati Prabhu
- Department of Quality Assurance, SVKM's Dr. Bhanuben Nanavati College of Pharmacy, Mumbai, India.
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6
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Kola A, Lamponi S, Currò F, Valensin D. A Comparative Study between Lycorine and Galantamine Abilities to Interact with AMYLOID β and Reduce In Vitro Neurotoxicity. Int J Mol Sci 2023; 24:ijms24032500. [PMID: 36768823 PMCID: PMC9916559 DOI: 10.3390/ijms24032500] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Revised: 01/22/2023] [Accepted: 01/23/2023] [Indexed: 01/31/2023] Open
Abstract
Galantamine is a natural alkaloid extracted from the Amaryllidaceae plants and is used as the active ingredient of a drug approved for the treatment of the early stages of Alzheimer's disease. It mainly acts as an acetylcholinesterase (AChE) inhibitor, increasing concentrations of the acetylcholine neurotransmitter. Recent cellular studies have also shown the ability of galantamine to protect SH-SY5Y cell lines against amyloid-β (Aβ)-induced toxicity. Such investigations have supported and validated further in-depth studies for understanding the chemical and molecular features associated with galantamine-protective abilities. In addition to galantamine, other natural alkaloids are known to possess AChE inhibitory activity; among them lycorine has been extensively investigated for its antibacterial, anti-inflammatory and antitumoral activities as well. Despite its interesting biological properties, lycorine's neuroprotective functions against Aβ-induced damages have not been explored so far. In this research study, the ability of galantamine and lycorine to suppress Aβ-induced in vitro neuronal toxicity was evaluated by investigating the chemical interactions of the two alkaloids with Aβ peptide. A multi-technique spectroscopic analysis and cellular cytotoxicity assays were applied to obtain new insights on these molecular associations. The comparison between the behaviors exhibited by the two alkaloids indicates that both compounds possess analogue abilities to interact with the amyloidogenic peptide and protect cells.
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Affiliation(s)
- Arian Kola
- Department of Biotechnology, Chemistry and Pharmacy, University of Siena, Via Aldo Moro 2, 53100 Siena, Italy
| | - Stefania Lamponi
- Department of Biotechnology, Chemistry and Pharmacy, University of Siena, Via Aldo Moro 2, 53100 Siena, Italy
| | - Francesco Currò
- Department of Biotechnology, Chemistry and Pharmacy, University of Siena, Via Aldo Moro 2, 53100 Siena, Italy
| | - Daniela Valensin
- Department of Biotechnology, Chemistry and Pharmacy, University of Siena, Via Aldo Moro 2, 53100 Siena, Italy
- CIRMMP, Via Luigi Sacconi 6, 50019 Firenze, Italy
- Correspondence: ; Tel.: +39-0577-232428
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7
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Varesi A, Campagnoli LIM, Carrara A, Pola I, Floris E, Ricevuti G, Chirumbolo S, Pascale A. Non-Enzymatic Antioxidants against Alzheimer's Disease: Prevention, Diagnosis and Therapy. Antioxidants (Basel) 2023; 12:antiox12010180. [PMID: 36671042 PMCID: PMC9855271 DOI: 10.3390/antiox12010180] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Revised: 01/06/2023] [Accepted: 01/08/2023] [Indexed: 01/13/2023] Open
Abstract
Alzheimer's disease (AD) is a neurodegenerative disorder characterized by progressive memory loss and cognitive decline. Although substantial research has been conducted to elucidate the complex pathophysiology of AD, the therapeutic approach still has limited efficacy in clinical practice. Oxidative stress (OS) has been established as an early driver of several age-related diseases, including neurodegeneration. In AD, increased levels of reactive oxygen species mediate neuronal lipid, protein, and nucleic acid peroxidation, mitochondrial dysfunction, synaptic damage, and inflammation. Thus, the identification of novel antioxidant molecules capable of detecting, preventing, and counteracting AD onset and progression is of the utmost importance. However, although several studies have been published, comprehensive and up-to-date overviews of the principal anti-AD agents harboring antioxidant properties remain scarce. In this narrative review, we summarize the role of vitamins, minerals, flavonoids, non-flavonoids, mitochondria-targeting molecules, organosulfur compounds, and carotenoids as non-enzymatic antioxidants with AD diagnostic, preventative, and therapeutic potential, thereby offering insights into the relationship between OS and neurodegeneration.
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Affiliation(s)
- Angelica Varesi
- Department of Biology and Biotechnology, University of Pavia, 27100 Pavia, Italy
| | | | - Adelaide Carrara
- Department of Internal Medicine and Therapeutics, University of Pavia, 27100 Pavia, Italy
| | - Ilaria Pola
- Department of Drug Sciences, University of Pavia, 27100 Pavia, Italy
| | - Elena Floris
- Department of Internal Medicine and Therapeutics, University of Pavia, 27100 Pavia, Italy
| | - Giovanni Ricevuti
- Department of Drug Sciences, University of Pavia, 27100 Pavia, Italy
| | - Salvatore Chirumbolo
- Department of Neurosciences, Biomedicine and Movement Sciences, University of Verona, 37129 Verona, Italy
| | - Alessia Pascale
- Department of Drug Sciences, Section of Pharmacology, University of Pavia, 27100 Pavia, Italy
- Correspondence:
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8
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Recent Progress in Research on Mechanisms of Action of Natural Products against Alzheimer's Disease: Dietary Plant Polyphenols. Int J Mol Sci 2022; 23:ijms232213886. [PMID: 36430365 PMCID: PMC9695301 DOI: 10.3390/ijms232213886] [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: 09/28/2022] [Revised: 11/05/2022] [Accepted: 11/07/2022] [Indexed: 11/16/2022] Open
Abstract
Alzheimer's disease (AD) is an incurable degenerative disease of the central nervous system and the most common type of dementia in the elderly. Despite years of extensive research efforts, our understanding of the etiology and pathogenesis of AD is still highly limited. Nevertheless, several hypotheses related to risk factors for AD have been proposed. Moreover, plant-derived dietary polyphenols were also shown to exert protective effects against neurodegenerative diseases such as AD. In this review, we summarize the regulatory effects of the most well-known plant-derived dietary polyphenols on several AD-related molecular mechanisms, such as amelioration of oxidative stress injury, inhibition of aberrant glial cell activation to alleviate neuroinflammation, inhibition of the generation and promotion of the clearance of toxic amyloid-β (Aβ) plaques, inhibition of cholinesterase enzyme activity, and increase in acetylcholine levels in the brain. We also discuss the issue of bioavailability and the potential for improvement in this regard. This review is expected to encourage further research on the role of natural dietary plant polyphenols in the treatment of AD.
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9
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Sekikawa A, Wharton W, Butts B, Veliky CV, Garfein J, Li J, Goon S, Fort A, Li M, Hughes TM. Potential Protective Mechanisms of S-equol, a Metabolite of Soy Isoflavone by the Gut Microbiome, on Cognitive Decline and Dementia. Int J Mol Sci 2022; 23:11921. [PMID: 36233223 PMCID: PMC9570153 DOI: 10.3390/ijms231911921] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Revised: 09/27/2022] [Accepted: 10/01/2022] [Indexed: 11/16/2022] Open
Abstract
S-equol, a metabolite of soy isoflavone daidzein transformed by the gut microbiome, is the most biologically potent among all soy isoflavones and their metabolites. Soy isoflavones are phytoestrogens and exert their actions through estrogen receptor-β. Epidemiological studies in East Asia, where soy isoflavones are regularly consumed, show that dietary isoflavone intake is inversely associated with cognitive decline and dementia; however, randomized controlled trials of soy isoflavones in Western countries did not generally show their cognitive benefit. The discrepant results may be attributed to S-equol production capability; after consuming soy isoflavones, 40-70% of East Asians produce S-equol, whereas 20-30% of Westerners do. Recent observational and clinical studies in Japan show that S-equol but not soy isoflavones is inversely associated with multiple vascular pathologies, contributing to cognitive impairment and dementia, including arterial stiffness and white matter lesion volume. S-equol has better permeability to the blood-brain barrier than soy isoflavones, although their affinity to estrogen receptor-β is similar. S-equol is also the most potent antioxidant among all known soy isoflavones. Although S-equol is available as a dietary supplement, no long-term trials in humans have examined the effect of S-equol supplementation on arterial stiffness, cerebrovascular disease, cognitive decline, or dementia.
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Affiliation(s)
- Akira Sekikawa
- Department of Epidemiology, School of Public Health, University of Pittsburgh, Pittsburgh, PA 15213, USA
| | - Whitney Wharton
- School of Nursing and Medicine, Emory University, Atlanta, GA 30322, USA
| | - Brittany Butts
- School of Nursing and Medicine, Emory University, Atlanta, GA 30322, USA
| | - Cole V. Veliky
- Department of Epidemiology, School of Public Health, University of Pittsburgh, Pittsburgh, PA 15213, USA
| | - Joshua Garfein
- Department of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA 15213, USA
| | - Jiatong Li
- Department of Epidemiology, School of Public Health, University of Pittsburgh, Pittsburgh, PA 15213, USA
| | - Shatabdi Goon
- Department of Epidemiology, School of Public Health, University of Pittsburgh, Pittsburgh, PA 15213, USA
| | - Annamaria Fort
- Department of Epidemiology, School of Public Health, University of Pittsburgh, Pittsburgh, PA 15213, USA
| | - Mengyi Li
- Department of Epidemiology, School of Public Health, University of Pittsburgh, Pittsburgh, PA 15213, USA
| | - Timothy M. Hughes
- Department of Internal Medicine, Wake Forest School of Medicine, Winston-Salem, NC 27157, USA
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10
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Li R, Robinson M, Ding X, Geetha T, Al-Nakkash L, Broderick TL, Babu JR. Genistein: A focus on several neurodegenerative diseases. J Food Biochem 2022; 46:e14155. [PMID: 35460092 DOI: 10.1111/jfbc.14155] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Revised: 03/15/2022] [Accepted: 03/17/2022] [Indexed: 12/14/2022]
Abstract
Neurodegenerative diseases are caused by the progressive loss of function or structure of nerve cells in the central nervous system. The most common neurodegenerative diseases include Alzheimer's disease, Huntington's disease, motor neuron disease, and Parkinson's disease. Although the physical or mental symptoms of neurodegenerative disease may be relieved by various treatment combinations, there are currently no strategies to directly slow or prevent neurodegeneration. Given the demographic evidence of a rapidly growing aging population and the associated prevalence of these common neurodegenerative diseases, it is paramount to develop safe and effective ways to protect against neurodegenerative diseases. Most neurodegenerative diseases share some common etiologies such as oxidative stress, neuroinflammation, and mitochondrial dysfunction. Genistein is an isoflavone found in soy products that have been shown to exhibit antioxidant, anti-inflammation, and estrogenic properties. Increasing evidence indicates the protective potential of genistein in neurodegenerative disorders. In this review, we aim to provide an overview of the role that genistein plays in delaying the development of neurodegenerative disease. PRACTICAL APPLICATIONS: Genistein is a naturally occurring isoflavone found mainly in soybean, but also green peas, legumes, and peanuts. Genistein is found to pass through the blood-brain barrier and possess a neuroprotective effect. In this review, we discuss studies in support of these actions and the underlying biological mechanisms. Together, these data indicate that genistein may hold neuroprotective effects in either delaying the onset or relieving the symptoms of neurodegenerative disease.
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Affiliation(s)
- Rongzi Li
- Department of Nutrition, Dietetics, and Hospitality Management, Auburn University, Auburn, Alabama, USA
| | - Megan Robinson
- Department of Nutrition, Dietetics, and Hospitality Management, Auburn University, Auburn, Alabama, USA
| | - Xiaowen Ding
- Department of Nutrition, Dietetics, and Hospitality Management, Auburn University, Auburn, Alabama, USA
| | - Thangiah Geetha
- Department of Nutrition, Dietetics, and Hospitality Management, Auburn University, Auburn, Alabama, USA
- Boshell Metabolic Diseases and Diabetes Program, Auburn University, Auburn, Alabama, USA
| | - Layla Al-Nakkash
- Department of Physiology, College of Graduate Studies, Midwestern University, Glendale, Arizona, USA
| | - Tom L Broderick
- Department of Physiology, Laboratory of Diabetes and Exercise Metabolism College of Graduate Studies, Midwestern University, Glendale, Arizona, USA
| | - Jeganathan Ramesh Babu
- Department of Nutrition, Dietetics, and Hospitality Management, Auburn University, Auburn, Alabama, USA
- Boshell Metabolic Diseases and Diabetes Program, Auburn University, Auburn, Alabama, USA
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11
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Fang M, Zhang Q, Wang X, Su K, Guan P, Hu X. Inhibition Mechanisms of (-)-Epigallocatechin-3-gallate and Genistein on Amyloid-beta 42 Peptide of Alzheimer's Disease via Molecular Simulations. ACS OMEGA 2022; 7:19665-19675. [PMID: 35721940 PMCID: PMC9202277 DOI: 10.1021/acsomega.2c01412] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2022] [Accepted: 05/18/2022] [Indexed: 05/06/2023]
Abstract
The misfolding and self-assembly of amyloid-beta (Aβ) peptides are one of the most important factors contributing to Alzheimer's disease (AD). This study aims to reveal the inhibition mechanisms of (-)-epigallocatechin-3-gallate (EGCG) and genistein on the conformational changes of Aβ42 peptides by using molecular docking and molecular dynamics (MD) simulation. The results indicate that both EGCG and genistein have inhibitory effects on the conformational transition of Aβ42 peptide. EGCG and genistein reduce the ratio of β-sheet secondary structures of Aβ42 peptide while inducing random coil structures. In terms of hydrophobic interactions in the central hydrophobic core of Aβ42 peptide, the binding affinities of EGCG are significantly larger in comparison with that of genistein. Our findings illustrate the inhibition mechanisms of EGCG and genistein on the Aβ42 peptides and prove that EGCG is a very promising inhibitor in impeding the conformational change of Aβ42 peptide.
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Affiliation(s)
- Mei Fang
- Department
of Chemistry, School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi’an, Shaanxi 710072, China
| | - Quan Zhang
- Department
of Biomedical Engineering, School of Life Science and Technology, Xi’an Jiaotong University, Xi’an, Shaanxi 710049, China
| | - Xin Wang
- Department
of Chemistry, School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi’an, Shaanxi 710072, China
| | - Kehe Su
- Department
of Chemistry, School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi’an, Shaanxi 710072, China
| | - Ping Guan
- Department
of Chemistry, School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi’an, Shaanxi 710072, China
| | - Xiaoling Hu
- Department
of Chemistry, School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi’an, Shaanxi 710072, China
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12
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Pradhan LK, Sahoo PK, Chauhan S, Das SK. Recent Advances Towards Diagnosis and Therapeutic Fingerprinting for Alzheimer's Disease. J Mol Neurosci 2022; 72:1143-1165. [PMID: 35553375 DOI: 10.1007/s12031-022-02009-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Accepted: 04/02/2022] [Indexed: 12/12/2022]
Abstract
Since the report of "a peculiar severe disease process of the cerebral cortex" by Alois Alzheimer in 1906, it was considered to be a rare condition characterized by loss of cognition, memory impairment, and pathological markers such as senile plaques or neurofibrillary tangles (NFTs). Later on, the report was published in the textbook "Psychiatrie" and the disease was named as Alzheimer's disease (AD) and was known to be the consequences of aging; however, owing to its complex etiology, there is no cure for the progressive neurodegenerative disorder. Our current understanding of the mechanisms involved in the pathogenesis of AD is still at the mechanistic level. The treatment strategies applied currently only alleviate the symptoms and co-morbidities. For instance, the available treatments such as the usage of acetylcholinesterase inhibitors and N-methyl D-aspartate antagonists have minimal impact on the disease progression and target the later aspects of the disease. The recent advancements in the last two decades have made us more clearly understand the pathophysiology of the disease which has led to the development of novel therapeutic strategies. This review gives a brief idea about the various facets of AD pathophysiology and its management through modern investigational therapies to give a new direction for development of targeted therapeutic measures.
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Affiliation(s)
- Lilesh Kumar Pradhan
- Neurobiology Laboratory, Centre for Biotechnology, Siksha 'O' Anusandhan (Deemed to Be University), Kalinga Nagar, Bhubaneswar-751003, India
| | - Pradyumna Kumar Sahoo
- Neurobiology Laboratory, Centre for Biotechnology, Siksha 'O' Anusandhan (Deemed to Be University), Kalinga Nagar, Bhubaneswar-751003, India
| | - Santosh Chauhan
- Autophagy Laboratory, Infectious Disease Biology Division, Institute of Life Sciences, Bhubaneswar-751023, India.
| | - Saroj Kumar Das
- Neurobiology Laboratory, Centre for Biotechnology, Siksha 'O' Anusandhan (Deemed to Be University), Kalinga Nagar, Bhubaneswar-751003, India.
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13
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Xi YD, Chi YF, Han J, Li HR, Wang XY, Wang X, Li TT, Yu HY, Xiao R. Keap1 as Target of Genistein on Nrf2 Signaling Pathway Antagonizing Aβ induced Oxidative Damage of Cerebrovascular Endothelial Cells. Curr Neurovasc Res 2022; 19:73-82. [PMID: 35388754 DOI: 10.2174/1567202619666220406100320] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Revised: 01/28/2022] [Accepted: 02/02/2022] [Indexed: 11/22/2022]
Abstract
BACKGROUND β-amyloid peptides (Aβ) induced oxidative damage contributes to the pathogenesis of neurodegenerative diseases and cerebrovascular system is more vulnerable to oxidative stress. Our earlier study showed a clue that Genistein (Gen) might activate Nf-E2 related factor 2 (Nrf2) pathway to protect cerebrovascular cells from oxidative damage induced by Aβ, but the specific mechanisms and regulation targets are unclear. OBJECTIVE In this study, the anti-oxidative effects and the possible targets of Gen on regulating Nrf2 pathway in bEnd.3 cells were investigated. Cells were divided into control, Aβ25-35, Gen and Gen+Aβ25-35 groups. METHODS Cell viability, levels of malondialdehyde (MDA), Superoxide Dismutase (SOD) activity and nitrotyrosine were evaluated. Moreover, mRNA and/or protein expressions of Nrf2 and kelch-like ECH-associated protein 1 (Keap1) were measured. Then we transfected Keap1 over-expressed plasmid into bEnd.3 cells and measured the protein expressions of Nrf2 pathway related factors. Data showed that Gen could inhibit the over-production of MDA and nitrotyrosine and activate SOD activity. Besides we got the phenomenon that Gen could up-regulate the mRNA and protein expressions of Nrf2 and down-regulate Keap1 protein expression, the Keap1 over-expressed plasmid study indicated that the up-regulation of Nrf2 protein expression induced by pretreatment of Gen could be blocked by the transfection of Keap1 over-expressed plasmid, and the same results also occurred in Nrf2 downstream factors. CONCLUSION Gen could alleviate the cerebrovascular cells oxidative damage induced by Aβ25-35 through regulating Nrf2 pathway, and Keap1 might be one of the targets of Gen on activating Nrf2 pathway.
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Affiliation(s)
- Yuan-Di Xi
- Department of Nutrition and Food Hygiene, School of Public Health, Capital Medical University, Beijing 100069, China
| | - Ya-Fei Chi
- Laboratory Animal Center, Capital Medical University, No.10 Xitoutiao, You An Men Wai, Beijing, P.R.China
| | - Jing Han
- Department of Nutrition and Food Hygiene, School of Public Health, Capital Medical University, Beijing 100069, China
| | - Hong-Rui Li
- Department of Nutrition and Food Hygiene, School of Public Health, Capital Medical University, Beijing 100069, China
| | - Xian-Yun Wang
- Department of Nutrition and Food Hygiene, School of Public Health, Capital Medical University, Beijing 100069, China
| | - Xuan Wang
- Department of Nutrition and Food Hygiene, School of Public Health, Capital Medical University, Beijing 100069, China
| | - Tian-Tian Li
- Department of Nutrition and Food Hygiene, School of Public Health, Capital Medical University, Beijing 100069, China
| | - Hui-Yan Yu
- Department of Nutrition and Food Hygiene, School of Public Health, Capital Medical University, Beijing 100069, China
| | - Rong Xiao
- Department of Nutrition and Food Hygiene, School of Public Health, Capital Medical University, Beijing 100069, China
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14
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Kim JM, Heo HJ. The roles of catechins in regulation of systemic inflammation. Food Sci Biotechnol 2022; 31:957-970. [PMID: 35345441 PMCID: PMC8943496 DOI: 10.1007/s10068-022-01069-0] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Revised: 03/11/2022] [Accepted: 03/14/2022] [Indexed: 02/08/2023] Open
Abstract
Catechins are a phytochemical present in plants such as tea leaves, beans, black grapes, cherries, and cacao, and have various physiological activities. It is reported that catechins have a health improvement effect and ameliorating effect against various diseases. In addition, antioxidant activity, liver damage prevention, cholesterol lowering effect, and anti-obesity activity were confirmed through in vivo animal and clinical studies. Although most diseases are reported as ones mediating various inflammations, the mechanism for improving inflammation remains unclear. Therefore, the current review article evaluates the physiological activity and various pharmacological actions of catechins and conclude by confirming an improvement effect on the inflammatory response.
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Affiliation(s)
- Jong Min Kim
- Division of Applied Life Science (BK21), Institute of Agriculture and Life Science, Gyeongsang National University, Jinju, 52828 Republic of Korea
| | - Ho Jin Heo
- Division of Applied Life Science (BK21), Institute of Agriculture and Life Science, Gyeongsang National University, Jinju, 52828 Republic of Korea
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15
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Quercetin inhibits cytotoxicity of PC12 cells induced by amyloid-beta 25–35 via stimulating estrogen receptor α, activating ERK1/2, and inhibiting apoptosis. Open Life Sci 2022. [DOI: 10.1515/biol-2021-0014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Abstract
The accumulation of β-amyloid (Aβ) in the brain plays an important role in the pathogenesis of Alzheimer’s disease (AD). The lack of estrogen is one of the risk factors for AD. Quercetin is a phytoestrogen with a chemical structure similar to that of estrogen. However, the mechanism by which quercetin prevents AD is unclear. PC12 cells were cultured with Aβ25–35 for 24 h. Then the cells were further treated with 17β-estradiol, genistein, and quercetin for another 24 h, respectively. Next, ICI182780 and U0126 were used to study the mechanisms of estrogen-like neuroprotection. Methyl thiazolyl tetrazolium (MTT) assay was performed to detect cell survival. The protein expression was analyzed by immunofluorescence and western blot. The survival of PC12 cells induced by Aβ25–35 was increased by quercetin. The levels of estrogen receptor α (ERα) and p-extracellular signal-regulated kinase (ERK)1/2 were improved by quercetin, but not those of ERβ. On the contrary, Bcl-2/Bax was increased and the expression of Caspase-3 was decreased. When the cell was pretreated with ICI182780, the p-ERK1/2 and Bcl-2/Bax ratio was decreased, but Caspase-3 expression was increased. In addition, pretreatment with U0126 would reduce Bcl-2/Bax ratio and increase Caspase-3 protein expression. Conclusively, quercetin plays a neuroprotective role through the ER pathway and the mitogen-activated protein kinase (MAPK) pathway. The MAPK signaling pathways could also be activated by quercetin via the mediation of ERα.
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16
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dos Santos Petry F, Hoppe JB, Klein CP, dos Santos BG, Hözer RM, Salbego CG, Trindade VMT. Genistein prevents the decrease in ganglioside levels induced by amyloid-beta in the frontal cortex of rats. Neurol Res 2022; 44:598-604. [DOI: 10.1080/01616412.2021.2024731] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Fernanda dos Santos Petry
- Programa de Pós-Graduação em Ciências Biológicas: Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Juliana Bender Hoppe
- Programa de Pós-Graduação em Ciências Biológicas: Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Caroline Peres Klein
- Programa de Pós-Graduação em Ciências Biológicas: Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Bernardo Gindri dos Santos
- Programa de Pós-Graduação em Ciências Biológicas: Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Régis Mateus Hözer
- Programa de Pós-Graduação em Ciências Biológicas: Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Christianne Gazzana Salbego
- Programa de Pós-Graduação em Ciências Biológicas: Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
- Departamento de Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Vera Maria Treis Trindade
- Programa de Pós-Graduação em Ciências Biológicas: Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
- Departamento de Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
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17
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Huang Z, Jin S, Lv Z. Dietary genistein supplementation alters mRNA expression profile and alternative splicing signature in the thymus of chicks with lipopolysaccharide challenge. Poult Sci 2021; 101:101561. [PMID: 34896964 PMCID: PMC8666715 DOI: 10.1016/j.psj.2021.101561] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Revised: 09/22/2021] [Accepted: 09/26/2021] [Indexed: 12/25/2022] Open
Abstract
Genistein is abundant in the soybean products, which exerts prominent effects on immune function. Little information is available about the effect of dietary genistein on thymic transcriptome, especially when suffering from lipopolysaccharide challenge. In this study, 180 one-day-old male broilers were randomly allocated to 3 groups: nonchallenged chicks given a basal diet (CON), and lipopolysaccharide-challenged chicks fed a basal diet (LPS), or lipopolysaccharide-challenged chicks fed a basal diet supplemented with 40 mg/kg genistein (GEN). Lipopolysaccharide injection induced thymocyte apoptosis and inflammatory reactions in the chicks. The results showed dietary genistein significantly reduced the percentage of CD3+ T lymphocytes by 10.04% and CD4+/CD8+ T lymphocyte ratio by 21.88% in the peripheral blood induced by lipopolysaccharide injection (P < 0.05). In addition, genistein significantly reduced the thymus index by 50% and apoptotic index by 12.34% induced by LPS challenge (P < 0.05). Transcriptomic analysis identified 1,926 DEGs (1,014 upregulated and 912 downregulated, P < 0.05) between GEN and LPS groups, which altered the mRNA expression profile and signaling pathways (Toll-like receptor, and NOD-like receptor signaling pathway) in the thymus. Furthermore, 5 splicing (AS) isoforms of the Drosophila Disabled-2 (DAB2) gene were detected, which were significantly upregulated in the GEN group compared with that in the LPS group. In summary, dietary genistein supplementation altered the RNA expression profile and AS signatures in the thymus, and alleviated immune response against lipopolysaccharide challenge.
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Affiliation(s)
- Zhenwu Huang
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - Song Jin
- Animal Disease Control Center of Changzhou, Jiangsu 213003, China
| | - Zengpeng Lv
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China.
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18
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The Beneficial Role of Natural Endocrine Disruptors: Phytoestrogens in Alzheimer's Disease. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2021; 2021:3961445. [PMID: 34527172 PMCID: PMC8437597 DOI: 10.1155/2021/3961445] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/17/2021] [Accepted: 08/17/2021] [Indexed: 01/14/2023]
Abstract
Alzheimer's disease (AD) is the most common form of dementia with a growing incidence rate primarily among the elderly. It is a neurodegenerative, progressive disorder leading to significant cognitive loss. Despite numerous pieces of research, no cure for halting the disease has been discovered yet. Phytoestrogens are nonestradiol compounds classified as one of the endocrine-disrupting chemicals (EDCs), meaning that they can potentially disrupt hormonal balance and result in developmental and reproductive abnormalities. Importantly, phytoestrogens are structurally, chemically, and functionally akin to estrogens, which undoubtedly has the potential to be detrimental to the organism. What is intriguing, although classified as EDCs, phytoestrogens seem to have a beneficial influence on Alzheimer's disease symptoms and neuropathologies. They have been observed to act as antioxidants, improve visual-spatial memory, lower amyloid-beta production, and increase the growth, survival, and plasticity of brain cells. This review article is aimed at contributing to the collective understanding of the role of phytoestrogens in the prevention and treatment of Alzheimer's disease. Importantly, it underlines the fact that despite being EDCs, phytoestrogens and their use can be beneficial in the prevention of Alzheimer's disease.
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19
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Fakhri S, Iranpanah A, Gravandi MM, Moradi SZ, Ranjbari M, Majnooni MB, Echeverría J, Qi Y, Wang M, Liao P, Farzaei MH, Xiao J. Natural products attenuate PI3K/Akt/mTOR signaling pathway: A promising strategy in regulating neurodegeneration. PHYTOMEDICINE 2021; 91:153664. [PMID: 34391082 DOI: 10.1016/j.phymed.2021.153664] [Citation(s) in RCA: 52] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2021] [Revised: 07/04/2021] [Accepted: 07/12/2021] [Indexed: 02/06/2023]
Abstract
BACKGROUND As common, progressive, and chronic causes of disability and death, neurodegenerative diseases (NDDs) significantly threaten human health, while no effective treatment is available. Given the engagement of multiple dysregulated pathways in neurodegeneration, there is an imperative need to target the axis and provide effective/multi-target agents to tackle neurodegeneration. Recent studies have revealed the role of phosphoinositide 3-kinase (PI3K)/Akt/mammalian target of rapamycin (mTOR) in some diseases and natural products with therapeutic potentials. PURPOSE This is the first systematic and comprehensive review on the role of plant-derived secondary metabolites in managing and/or treating various neuronal disorders via the PI3K/Akt/mTOR signaling pathway. STUDY DESIGN AND METHODS A systematic and comprehensive review was done based on the PubMed, Scopus, Web of Science, and Cochrane electronic databases. Two independent investigators followed the PRISMA guidelines and included papers on PI3K/Akt/mTOR and interconnected pathways/mediators targeted by phytochemicals in NDDs. RESULTS Natural products are multi-target agents with diverse pharmacological and biological activities and rich sources for discovering and developing novel therapeutic agents. Accordingly, recent studies have shown increasing phytochemicals in combating Alzheimer's disease, aging, Parkinson's disease, brain/spinal cord damages, depression, and other neuronal-associated dysfunctions. Amongst the emerging targets in neurodegeneration, PI3K/Akt/mTOR is of great importance. Therefore, attenuation of these mediators would be a great step towards neuroprotection in such NDDs. CONCLUSION The application of plant-derived secondary metabolites in managing and/or treating various neuronal disorders through the PI3K/Akt/mTOR signaling pathway is a promising strategy towards neuroprotection.
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Affiliation(s)
- Sajad Fakhri
- Pharmaceutical Sciences Research Center, Health Institute, Kermanshah University of Medical Sciences, Kermanshah 6734667149, Iran.
| | - Amin Iranpanah
- Student Research Committee, Kermanshah University of Medical Sciences, Kermanshah, Iran.
| | | | - Seyed Zachariah Moradi
- Pharmaceutical Sciences Research Center, Health Institute, Kermanshah University of Medical Sciences, Kermanshah 6734667149, Iran; Medical Biology Research Center, Kermanshah University of Medical Sciences, Kermanshah 6734667149, Iran.
| | - Mohammad Ranjbari
- Student Research Committee, Kermanshah University of Medical Sciences, Kermanshah, Iran.
| | | | - Javier Echeverría
- Departamento de Ciencias del Ambiente, Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago, Chile.
| | - Yaping Qi
- Purdue Quantum Science and Engineering Institute, Purdue University, West Lafayette, IN 47907, USA.
| | - Mingfu Wang
- School of Biological Sciences, The University of Hong Kong, Hong Kong, PR China.
| | - Pan Liao
- Department of Biochemistry, Purdue University, West Lafayette, IN 47907, USA.
| | - Mohammad Hosein Farzaei
- Pharmaceutical Sciences Research Center, Health Institute, Kermanshah University of Medical Sciences, Kermanshah 6734667149, Iran.
| | - Jianbo Xiao
- International Research Center for Food Nutrition and Safety, Jiangsu University, Zhenjiang, China; Department of Analytical Chemistry and Food Science, Faculty of Food Science and Technology, University of Vigo - Ourense Campus, E-32004 Ourense, Spain.
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20
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He Z, Song J, Li X, Li X, Zhu H, Wu C, Xiao W, Du X, Ni J, Li N, Liu Q. Bis(ethylmaltolato)oxidovanadium (IV) alleviates neuronal apoptosis through regulating peroxisome proliferator-activated receptor γ in a triple transgenic animal model of Alzheimer's disease. J Biol Inorg Chem 2021; 26:551-568. [PMID: 34240269 DOI: 10.1007/s00775-021-01874-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Accepted: 05/16/2021] [Indexed: 12/27/2022]
Abstract
Endoplasmic reticulum stress (ER stress) plays a critical role in neuronal apoptosis along with the aggravation of Alzheimer's disease (AD). Nuclear receptor peroxisome proliferator-activated receptor gamma (PPARγ) is a ligand-activated transcription factor that is involved in regulating ER stress in Alzheimer's disease (AD), therefore, this protein could be a promising therapeutic target for AD. Vanadium compounds, such as vanadyl acetylacetonate, sodium metavanadate and bis(maltolato)oxovanadium, are well-known as puissant PPARγ modulators. Thus, we are curious whether bis(ethylmaltolato)oxidovanadium (IV) (BEOV) can ameliorate ER stress and subsequent neuronal apoptosis by regulating PPARγ in AD models. To this end, we determined the effect of BEOV on behavioral performance, ER stress and neuronal apoptosis in the triple transgenic mouse AD model (3×Tg-AD). Our results showed that BEOV improved cognitive abilities and reduced the ER stress- and apoptosis-associated proteins in the brains of 3×Tg-AD mice. In vitro administration of BEOV in primary hippocampal neurons and N2asw cells achieved similar results in repressing ER stress. In addition, cotreatment with GW9662 (an antagonist of PPARγ) effectively blocked these neuroprotective effects of BEOV, which provided strong evidence that PPARγ-dependent signaling plays a key role in protecting against ER stress and neuronal apoptosis in AD. In conclusion, our data demonstrated that BEOV alleviated neuronal apoptosis triggered by ER stress by regulating PPARγ in a 3×Tg-AD model.
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Affiliation(s)
- Zhijun He
- Shenzhen Key Laboratory of Marine Biotechnology and Ecology, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen, 518055, Guangdong, China.,Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China
| | - Jianxi Song
- Shenzhen Key Laboratory of Marine Biotechnology and Ecology, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen, 518055, Guangdong, China
| | - Xuexia Li
- Shenzhen Key Laboratory of Marine Biotechnology and Ecology, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen, 518055, Guangdong, China.,Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China
| | - Xiaoqian Li
- Shenzhen Key Laboratory of Marine Biotechnology and Ecology, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen, 518055, Guangdong, China
| | - Huazhang Zhu
- Shenzhen Key Laboratory of Marine Biotechnology and Ecology, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen, 518055, Guangdong, China
| | - Chong Wu
- Shenzhen Key Laboratory of Marine Biotechnology and Ecology, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen, 518055, Guangdong, China
| | - Wen Xiao
- Shenzhen Key Laboratory of Marine Biotechnology and Ecology, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen, 518055, Guangdong, China
| | - Xiubo Du
- Shenzhen Key Laboratory of Marine Biotechnology and Ecology, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen, 518055, Guangdong, China
| | - Jiazuan Ni
- Shenzhen Key Laboratory of Marine Biotechnology and Ecology, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen, 518055, Guangdong, China.,Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China
| | - Nan Li
- Shenzhen Key Laboratory of Marine Biotechnology and Ecology, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen, 518055, Guangdong, China. .,Shenzhen Bay Laboratory, Shenzhen, 518055, China.
| | - Qiong Liu
- Shenzhen Key Laboratory of Marine Biotechnology and Ecology, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen, 518055, Guangdong, China. .,Shenzhen-Hong Kong Institute of Brain Science, Shenzhen, 518033, China.
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21
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The Potential Effects of Phytoestrogens: The Role in Neuroprotection. Molecules 2021; 26:molecules26102954. [PMID: 34065647 PMCID: PMC8156305 DOI: 10.3390/molecules26102954] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2021] [Revised: 05/12/2021] [Accepted: 05/13/2021] [Indexed: 12/20/2022] Open
Abstract
Phytoestrogens are naturally occurring non-steroidal phenolic plant compounds. Their structure is similar to 17-β-estradiol, the main female sex hormone. This review offers a concise summary of the current literature on several potential health benefits of phytoestrogens, mainly their neuroprotective effect. Phytoestrogens lower the risk of menopausal symptoms and osteoporosis, as well as cardiovascular disease. They also reduce the risk of brain disease. The effects of phytoestrogens and their derivatives on cancer are mainly due to the inhibition of estrogen synthesis and metabolism, leading to antiangiogenic, antimetastatic, and epigenetic effects. The brain controls the secretion of estrogen (hypothalamus-pituitary-gonads axis). However, it has not been unequivocally established whether estrogen therapy has a neuroprotective effect on brain function. The neuroprotective effects of phytoestrogens seem to be related to both their antioxidant properties and interaction with the estrogen receptor. The possible effects of phytoestrogens on the thyroid cause some concern; nevertheless, generally, no serious side effects have been reported, and these compounds can be recommended as health-promoting food components or supplements.
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22
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Xie X, Cong L, Liu S, Xiang L, Fu X. Genistein alleviates chronic vascular inflammatory response via the miR‑21/NF‑κB p65 axis in lipopolysaccharide‑treated mice. Mol Med Rep 2021; 23:192. [PMID: 33495831 PMCID: PMC7809901 DOI: 10.3892/mmr.2021.11831] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Accepted: 12/09/2020] [Indexed: 12/24/2022] Open
Abstract
Chronic vascular inflammatory response is an important pathological basis of cardiovascular disease. Genistein (GEN), a natural compound, exhibits anti‑inflammatory effects. The aim of the present study was to investigate the effects of GEN on lipopolysaccharide (LPS)‑induced chronic vascular inflammatory response in mice and explore the underlying anti‑inflammatory mechanisms. C57BL/6 mice were fed with a high‑fat diet combined with intraperitoneal injection of LPS to induce chronic vascular inflammation. The expression levels of TNF‑α, IL‑6 and microRNA (miR)‑21 in the vasculature were detected via reverse transcription‑quantitative (RT‑q)PCR. The protein levels of inducible nitric oxide synthase (iNOS) and NF‑κB p65 were detected via western blotting. NF‑κB p65 was also analyzed via immunohistochemistry and immunofluorescence (IF). In addition, after transfection with miR‑21 mimic or inhibitor for 24 h, vascular endothelial cells (VECs) were treated with GEN and LPS. RT‑qPCR and western blot analyses were performed to detect the expression of TNF‑α, IL‑6, miR‑21 and iNOS, and the protein levels of iNOS and NF‑κB p65, respectively. IF was used to measure NF‑κB p65 nuclear translocation. The results revealed that GEN significantly decreased the expression of inflammation‑associated vascular factors in LPS‑treated C57BL/6 mice, including TNF‑α, IL‑6, iNOS, NF‑κB p65 and miR‑21. Furthermore, miR‑21 antagomir enhanced the anti‑inflammatory effects of GEN. In LPS‑induced VECs, miR‑21 mimic increased inflammation‑associated factor expression and attenuated the anti‑inflammatory effects of GEN, whereas miR‑21 inhibitor induced opposing effects. Therefore, the results of the present study suggested that GEN inhibited chronic vascular inflammatory response in mice, which may be associated with the inhibition of VEC inflammatory injury via the miR‑21/NF‑κB p65 pathway.
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Affiliation(s)
- Xiaolin Xie
- Key Laboratory of Study and Discovery of Small Targeted Molecules of Hunan Province, Hunan Normal University, Changsha, Hunan 410013, P.R. China
- Department of Basic Medicine, School of Medicine, Hunan Normal University, Changsha, Hunan 410013, P.R. China
| | - Li Cong
- Key Laboratory of Study and Discovery of Small Targeted Molecules of Hunan Province, Hunan Normal University, Changsha, Hunan 410013, P.R. China
| | - Sujuan Liu
- Department of Basic Medicine, School of Medicine, Hunan Normal University, Changsha, Hunan 410013, P.R. China
| | - Liping Xiang
- Department of Pathology, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, P.R. China
| | - Xiaohua Fu
- Key Laboratory of Study and Discovery of Small Targeted Molecules of Hunan Province, Hunan Normal University, Changsha, Hunan 410013, P.R. China
- Department of Basic Medicine, School of Medicine, Hunan Normal University, Changsha, Hunan 410013, P.R. China
- Correspondence to: Professor Xiaohua Fu, Department of Basic Medicine, School of Medicine, Hunan Normal University, 371 Tongzipo Road, Changsha, Hunan 410013, P.R. China, E-mail:
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Cheng J, Wang G, Zhang N, Li F, Shi L, Li H. Isovitexin modulates autophagy in Alzheimer's disease via miR-107 signalling. Transl Neurosci 2020; 11:391-401. [PMID: 33335779 PMCID: PMC7718616 DOI: 10.1515/tnsci-2020-0109] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2020] [Revised: 04/07/2020] [Accepted: 04/07/2020] [Indexed: 12/12/2022] Open
Abstract
Background: Alzheimer’s disease (AD) is an ultimately fatal, degenerative brain disease in the elderly people. In the current work, we assessed the defensive capability of isovitexin (IVX) through an intracerebroventricular injection of streptozotocin (STZ)-induced AD mouse model. Methods: Mice were separated into four cohorts: sham-operated control mice; STZ-intoxicated Alzheimer’s mice; IVX cohort, IVX + STZ; and Ant-107 cohort, antagomiR-107 + IVX/STZ as in the IVX cohort. Results: The outcomes indicated that IVX administration ameliorated spatial memory loss and blunted a cascade of neuro-noxious episodes – including increased amyloid-beta (Aβ) and degraded myelin basic protein burden, neuroinflammation (represented by elevated caspase-1, TNF-α and IL-6 levels) and autophagic dysfunction (represented by altered LC3-II, Atg7 and beclin-1 expressions) – via the inhibition of PI3K/Akt/mTOR signalling axis. We considered the question of whether the epigenetic role of microRNA-107 (miR-107) has any impact on these events, by using antagomiR-107. Conclusion: This probing underscored that miR-107 could be a pivotal regulatory button in the activation of molecular signals linked with the beneficial autophagic process and anti-inflammatory activities in relation to IVX treatment. Hence, this report exemplifies that IVX could guard against Aβ toxicity and serve as an effectual treatment for patients afflicted with AD.
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Affiliation(s)
- Jiang Cheng
- Department of Neurology, General Hospital of Ningxia Medical University, Ningxia Key Laboratory of Cerebrocranial Diseases, Incubation Base of National Key Laboratory, Yinchuan, 750004, China
| | - Guowei Wang
- School of Clinical Medicine, Ningxia Medical University, Yinchuan, 750004, China
| | - Na Zhang
- Department of Neurology, General Hospital of Ningxia Medical University, Ningxia Key Laboratory of Cerebrocranial Diseases, Incubation Base of National Key Laboratory, Yinchuan, 750004, China.,School of Clinical Medicine, Ningxia Medical University, Yinchuan, 750004, China
| | - Fang Li
- Department of Neurology, General Hospital of Ningxia Medical University, Ningxia Key Laboratory of Cerebrocranial Diseases, Incubation Base of National Key Laboratory, Yinchuan, 750004, China
| | - Lina Shi
- Department of Neurology, General Hospital of Ningxia Medical University, Ningxia Key Laboratory of Cerebrocranial Diseases, Incubation Base of National Key Laboratory, Yinchuan, 750004, China
| | - Haining Li
- Department of Neurology, General Hospital of Ningxia Medical University, Ningxia Key Laboratory of Cerebrocranial Diseases, Incubation Base of National Key Laboratory, Yinchuan, 750004, China
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Wang YX, Xia ZH, Jiang X, Li LX, Wang HG, An D, Liu YQ. Genistein inhibits amyloid peptide 25-35-induced neuronal death by modulating estrogen receptors, choline acetyltransferase and glutamate receptors. Arch Biochem Biophys 2020; 693:108561. [PMID: 32857999 DOI: 10.1016/j.abb.2020.108561] [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: 01/03/2020] [Revised: 07/31/2020] [Accepted: 08/22/2020] [Indexed: 01/06/2023]
Abstract
PURPOSE To explore genistein, the most active component of soy isoflavones, on viability, expression of estrogen receptor (ER) subtypes, choline acetyltransferase (ChAT), and glutamate receptor subunits in amyloid peptide 25-35-induced hippocampal neurons, providing valuable data and basic information for neuroprotective effect of genistein in Aβ25-35-induced neuronal injury. METHODS We established an in vitro model of Alzheimer's disease by exposing primary hippocampal neurons of newborn rats to amyloid peptide 25-35 (20 μM) for 24 h and observing the effects of genistein (10 μM, 3 h) on viability, expression of ER subtypes, ChAT, NMDA receptor subunit NR2B and AMPA receptor subunit GluR2 in Aβ25-35-induced hippocampal neurons. RESULTS We found that amyloid peptide 25-35 exposure reduced the viability of hippocampal neurons. Meanwhile, amyloid peptide 25-35 exposure decreased the expression of ER subtypes, ChAT and GluR2, and increased the expression of NR2B. Genistein at least partially reversed the effects of amyloid peptide 25-35 in hippocampal neurons. CONCLUSION Genistein could increase the expression of ChAT as a consequence of activating estrogen receptor subtypes, modulating the expression of NR2B and GluR2, and thereby ameliorating the status of hippocampal neurons and exerting neuroprotective effects against amyloid peptide 25-35. Our data suggest that genistein might represent a potential cell-targeted therapy which could be a promising approach to treating AD.
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Affiliation(s)
- Yu-Xiang Wang
- Department of Zoology and Developmental Biology, College of Life Sciences, Nankai University, Tianjin, 300071, China; Department of Immunology and Pathogenic Biology, School of Basic Medical Sciences, Hebei University of Chinese Medicine, Shijiazhuang, Hebei, 050200, China
| | - Zhen-Hong Xia
- Department of Zoology and Developmental Biology, College of Life Sciences, Nankai University, Tianjin, 300071, China
| | - Xue Jiang
- Department of Zoology and Developmental Biology, College of Life Sciences, Nankai University, Tianjin, 300071, China
| | - Li-Xia Li
- Department of Zoology and Developmental Biology, College of Life Sciences, Nankai University, Tianjin, 300071, China
| | - Hong-Gang Wang
- Department of Zoology and Developmental Biology, College of Life Sciences, Nankai University, Tianjin, 300071, China
| | - Di An
- Department of Zoology and Developmental Biology, College of Life Sciences, Nankai University, Tianjin, 300071, China
| | - Yan-Qiang Liu
- Department of Zoology and Developmental Biology, College of Life Sciences, Nankai University, Tianjin, 300071, China.
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Petry FDS, Hoppe JB, Klein CP, Dos Santos BG, Hözer RM, Bifi F, Matté C, Salbego CG, Trindade VMT. Genistein attenuates amyloid-beta-induced cognitive impairment in rats by modulation of hippocampal synaptotoxicity and hyperphosphorylation of Tau. J Nutr Biochem 2020; 87:108525. [PMID: 33065257 DOI: 10.1016/j.jnutbio.2020.108525] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2020] [Revised: 07/07/2020] [Accepted: 10/07/2020] [Indexed: 11/26/2022]
Abstract
Alzheimer's disease is a progressive neurodegenerative disorder characterized by extracellular accumulation of amyloid-beta (Aβ) peptide, which induces synaptic dysfunction, alteration of intracellular signaling pathways, hyperphosphorylation of the Tau protein, and cognitive impairment. Genistein, one of the major isoflavones present in soy and soy products, has been shown to modulate some of the pathogenic events associated with the neurodegeneration process. However, its underlying mechanisms remain to be clarified. Therefore, the objectives of the present study were to evaluate the ability of genistein to protect against Aβ1-42-induced cognitive impairment in rats and to elucidate some of the possible mechanisms involved in its neuroprotective effects in the hippocampus. Male Wistar rats received bilateral intracerebroventricular infusions of Aβ1-42 (2 nmol) and genistein 10 mg/kg orally for 10 days. The Aβ-infused animals showed significant impairment of memory, which was accompanied by the following neurochemical alterations in the hippocampus: decreased levels of the synaptic proteins synaptophysin and postsynaptic density protein 95 (PSD-95), hyperphosphorylation of Tau with increased activation of glycogen synthase kinase-3β and c-Jun N-terminal kinase, and inactivation of ERK. Treatment with genistein improved Aβ-induced cognitive impairment by attenuation of synaptotoxicity, hyperphosphorylation of Tau, and inactivation of ERK. Furthermore, treatment with this soy isoflavone did not cause systemic toxicity. These findings provide further evidence of the neuroprotective effect of genistein in an in vivo model of Aβ toxicity and, importantly, extend the current knowledge concerning the mechanisms associated with the neuroprotective effects of this compound in the hippocampus.
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Affiliation(s)
- Fernanda Dos Santos Petry
- Programa de Pós-Graduação em Ciências Biológicas: Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil.
| | - Juliana Bender Hoppe
- Programa de Pós-Graduação em Ciências Biológicas: Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | - Caroline Peres Klein
- Programa de Pós-Graduação em Ciências Biológicas: Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | - Bernardo Gindri Dos Santos
- Programa de Pós-Graduação em Ciências Biológicas: Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | - Régis Mateus Hözer
- Programa de Pós-Graduação em Ciências Biológicas: Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | - Felippo Bifi
- Programa de Pós-Graduação em Ciências Biológicas: Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | - Cristiane Matté
- Programa de Pós-Graduação em Ciências Biológicas: Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil; Departamento de Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | - Christianne Gazzana Salbego
- Programa de Pós-Graduação em Ciências Biológicas: Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil; Departamento de Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | - Vera Maria Treis Trindade
- Programa de Pós-Graduação em Ciências Biológicas: Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil; Departamento de Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
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Han KM, Kang RJ, Jeon H, Lee HJ, Lee JS, Park H, Gak Jeon S, Suk K, Seo J, Hoe HS. Regorafenib Regulates AD Pathology, Neuroinflammation, and Dendritic Spinogenesis in Cells and a Mouse Model of AD. Cells 2020; 9:cells9071655. [PMID: 32660121 PMCID: PMC7408082 DOI: 10.3390/cells9071655] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Revised: 06/27/2020] [Accepted: 07/06/2020] [Indexed: 12/19/2022] Open
Abstract
The oral multi-target kinase inhibitor regorafenib, which targets the oncogenic receptor tyrosine kinase (RTK), is an effective therapeutic for patients with advanced gastrointestinal stromal tumors or metastatic colorectal cancer. However, whether regorafenib treatment has beneficial effects on neuroinflammation and Alzheimer’s disease (AD) pathology has not been carefully addressed. Here, we report the regulatory function of regorafenib in neuroinflammatory responses and AD-related pathology in vitro and in vivo. Regorafenib affected AKT signaling to attenuate lipopolysaccharide (LPS)-mediated expression of proinflammatory cytokines in BV2 microglial cells and primary cultured microglia and astrocytes. In addition, regorafenib suppressed LPS-induced neuroinflammatory responses in LPS-injected wild-type mice. In 5x FAD mice (a mouse model of AD), regorafenib ameliorated AD pathology, as evidenced by increased dendritic spine density and decreased Aβ plaque levels, by modulating APP processing and APP processing-associated proteins. Furthermore, regorafenib-injected 5x FAD mice displayed significantly reduced tau phosphorylation at T212 and S214 (AT100) due to the downregulation of glycogen synthase kinase-3 beta (GSK3β) activity. Taken together, our results indicate that regorafenib has beneficial effects on neuroinflammation, AD pathology, and dendritic spine formation in vitro and in vivo.
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Affiliation(s)
- Kyung-Min Han
- Department of Neural Development and Disease, Korea Brain Research Institute (KBRI), 61, Cheomdan-ro, Dong-gu, Daegu 41068, Korea; (K.-M.H.); (R.J.K.); (H.J.); (H.-j.L.); (J.-S.L.); (H.P.); (S.G.J.)
- Department of Brain and Cognitive Sciences, Daegu Gyeongbuk Institute of Science & Technology, Daegu 42988, Korea
| | - Ri Jin Kang
- Department of Neural Development and Disease, Korea Brain Research Institute (KBRI), 61, Cheomdan-ro, Dong-gu, Daegu 41068, Korea; (K.-M.H.); (R.J.K.); (H.J.); (H.-j.L.); (J.-S.L.); (H.P.); (S.G.J.)
- Department of Pharmacology, Brain Science & Engineering Institute, School of Medicine, Kyungpook National University, Daegu 41944, Korea;
| | - Hyongjun Jeon
- Department of Neural Development and Disease, Korea Brain Research Institute (KBRI), 61, Cheomdan-ro, Dong-gu, Daegu 41068, Korea; (K.-M.H.); (R.J.K.); (H.J.); (H.-j.L.); (J.-S.L.); (H.P.); (S.G.J.)
| | - Hyun-ju Lee
- Department of Neural Development and Disease, Korea Brain Research Institute (KBRI), 61, Cheomdan-ro, Dong-gu, Daegu 41068, Korea; (K.-M.H.); (R.J.K.); (H.J.); (H.-j.L.); (J.-S.L.); (H.P.); (S.G.J.)
| | - Ji-Soo Lee
- Department of Neural Development and Disease, Korea Brain Research Institute (KBRI), 61, Cheomdan-ro, Dong-gu, Daegu 41068, Korea; (K.-M.H.); (R.J.K.); (H.J.); (H.-j.L.); (J.-S.L.); (H.P.); (S.G.J.)
| | - HyunHee Park
- Department of Neural Development and Disease, Korea Brain Research Institute (KBRI), 61, Cheomdan-ro, Dong-gu, Daegu 41068, Korea; (K.-M.H.); (R.J.K.); (H.J.); (H.-j.L.); (J.-S.L.); (H.P.); (S.G.J.)
| | - Seong Gak Jeon
- Department of Neural Development and Disease, Korea Brain Research Institute (KBRI), 61, Cheomdan-ro, Dong-gu, Daegu 41068, Korea; (K.-M.H.); (R.J.K.); (H.J.); (H.-j.L.); (J.-S.L.); (H.P.); (S.G.J.)
| | - Kyoungho Suk
- Department of Pharmacology, Brain Science & Engineering Institute, School of Medicine, Kyungpook National University, Daegu 41944, Korea;
| | - Jinsoo Seo
- Department of Brain and Cognitive Sciences, Daegu Gyeongbuk Institute of Science & Technology, Daegu 42988, Korea
- Correspondence: (J.S.); (H.-S.H.); Tel.: +82-53-420-4835 (J.S.); +82-53-980-8310 (H.-S.H.)
| | - Hyang-Sook Hoe
- Department of Neural Development and Disease, Korea Brain Research Institute (KBRI), 61, Cheomdan-ro, Dong-gu, Daegu 41068, Korea; (K.-M.H.); (R.J.K.); (H.J.); (H.-j.L.); (J.-S.L.); (H.P.); (S.G.J.)
- Department of Brain and Cognitive Sciences, Daegu Gyeongbuk Institute of Science & Technology, Daegu 42988, Korea
- Correspondence: (J.S.); (H.-S.H.); Tel.: +82-53-420-4835 (J.S.); +82-53-980-8310 (H.-S.H.)
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Genistein and Galantamine Combinations Decrease β-Amyloid Peptide (1-42)-Induced Genotoxicity and Cell Death in SH-SY5Y Cell Line: an In Vitro and In Silico Approach for Mimic of Alzheimer's Disease. Neurotox Res 2020; 38:691-706. [PMID: 32613603 DOI: 10.1007/s12640-020-00243-8] [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: 03/25/2020] [Revised: 06/09/2020] [Accepted: 06/12/2020] [Indexed: 01/09/2023]
Abstract
Alzheimer's disease (AD) is the primary dementia-causing disease worldwide, involving a multifactorial combination of environmental, genetic, and epigenetic factors, with essential participation of age and sex. Biochemically, AD is characterized by the presence of abnormal deposition of beta amyloid peptide (Aβ(1-42)), which in the brain is strongly correlated with oxidative stress, inflammation, DNA damage, and cholinergic impairment. The multiple mechanisms involved in its etiology create significant difficulty in producing an effective treatment. Neuroprotective properties of genistein and galantamine have been widely demonstrated through different mechanisms; however, it is unknown a possible synergistic neuroprotective effect against Aβ(1-42). In order to understand how genistein and galantamine combinations regulate the mechanisms of neuroprotection, we conducted a set of bioassays in vitro to evaluate cell viability, clonogenic survival, cell death, and anti-genotoxicity. Through molecular docking and therapeutic viability assays, we analyzed the inhibitory activity exerted by genistein on three major protein targets (AChE, BChE, and NMDA) involved in AD. The results showed that genistein and galantamine afforded significant protection at higher concentrations; however, combinations of sub-effective concentrations of both compounds provided marked neuroprotection when they were combined. In silico approaches showed that genistein has higher scores than the positive controls and low toxicity levels; nevertheless, the therapeutic viability indicated that unlike galantamine, genistein cannot undergo the action by P glycoprotein (PGP) and probably may be unable to cross the blood-brain barrier. In conclusion, our results show that genistein and galantamine exert neuroprotective by decreasing genotoxicity and cell death. In silico analysis, suggest that genistein modulates positively the expression of AChE, BChE, and NMDA. In this context, a combination of two or more drugs could inspire an attractive therapeutic strategy.
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Tang C, Liu X, Zhu H, Lu Q. Antagonizing effect of icaritin on apoptosis and injury of hippocampal neurocytes induced by amyloid beta via GR/BDNF signaling pathway. J Recept Signal Transduct Res 2020; 40:550-559. [PMID: 32476534 DOI: 10.1080/10799893.2020.1768547] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
Purpose: Amyloid beta is the main component of senile plaques deposited in the hippocampus of people with Alzheimer's disease (AD), with neurotoxicity and pro-apoptotic characteristics. Icaritin (ICA) has been found to have the properties of plerosis, regeneration, and anti-apoptosis in the neurocytes, its effects on Aβ-induced hippocampal neurocytes were studied in this research.Methods: Different concentrations of Aβ25-35 were used to treat mouse hippocampal neuron HT22 cells to determine the optimal concentration for constructing AD model; different concentrations of ICA were used to pretreat HT22 cells to explore their effects on cell activity. Cell injury was evaluated by measuring the viability and apoptosis of HT22 cells using MTT assay, and Annexin V/PI and Hoechst 33342 staining, respectively. Western blot and qPCR were performed to detect the expressions of glucocorticoid receptor (GR), brain-derived neurotrophic factor (BDNF), and apoptosis-related factors. Oxidative stress was assessed by the biochemical analysis of Lactate dehydrogenase (LDH) release and superoxidase dismutase (SOD) activity.Results: Aβ25-35 inhibited the viability of HT22 cells and the expression of GR and BDNF in HT22 cells in a concentration-dependent manner. ICA at 20 µmol/L (ICA20) the most significantly increased the viability of HT22 cells and the expressions of GR and BDNF in HT22 cells. ICA20 increased viability, inhibited apoptosis and LDH release, promoted SOD activity and the expressions of GR, BDNF and Bcl-2, and inhibited the expressions of Bax and C Caspase-3 in AD. More importantly, shRNA-GR reversed the positive effects of ICA20 on AD.Conclusions: ICA protected hippocampal neurocytes against Aβ25-35 via GR/BDNF signaling pathway.
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Affiliation(s)
- Congfeng Tang
- Department of Neurology, Jingmen No.1 People's Hospital, Jingmen, PR China
| | - Xuejiao Liu
- Department of Blood Purification, Jingmen No.1 People's Hospital, Jingmen, PR China
| | - Hailing Zhu
- Department of Emergency, Jingmen No.1 People's Hospital, Jingmen, PR China
| | - Quan Lu
- Department of Neurology, Jingmen No.1 People's Hospital, Jingmen, PR China
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