1
|
Kim HL, Min DE, Lee SK, Choi BK, Lee DR. Scrophularia buergeriana Extract (Brainon) Attenuates Neuroinflammation in BV-2 Microglia Cells and Promotes Neuroprotection in SH-SY5Y Neuroblastoma Cells. J Med Food 2023; 26:328-341. [PMID: 37092995 DOI: 10.1089/jmf.2022.k.0132] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/25/2023] Open
Abstract
Microglia-induced neuroinflammation is one of the causative factors in cognitive dysfunction and neurodegenerative disorders. Our previous studies have revealed several benefits of Scrophularia buergeriana extract (Brainon®) in the central nervous system, but the underlying mechanism of action has not been elucidated. This study is purposed to investigate the anti-inflammatory and neuroprotective mechanisms of Brainon in the BV-2 condition SH-SY5Y model. Lipopolysaccharide (LPS)-induced BV-2 conditioned media (CM) were used to treat SH-SY5Y cells to investigate neuroprotective effects of the extract against microglial cytotoxicity. Results demonstrated that pretreated Brainon decreased nitric oxide release, the inducible nitric oxide synthase expression level, and expression of cytokines like interleukin-6, interleukin-1β, and tumor necrosis factor-α by blocking expression of TLR4/MyD88 and NLRP3 and suppressing nuclear factor κB/AP-1 and p38/JNK signaling pathways in LPS-induced BV-2 cells. In addition, when SH-SY5Y cells were treated with CM, pretreatment with Brainon increased neuronal viability by upregulating expression of antioxidant proteins like as SODs and Gpx-1. Increased autophagy and mitophagy-associated proteins also provide important clues for SH-SY5Y to prevent apoptosis by Brainon. Brainon also modulated mTOR/AMPK signaling to clear misfolded proteins or damaged mitochondria via auto/mitophagy to protect SH-SY5Y cells from CM. Taken together, these results indicate that Brainon could reduce inflammatory mediators secreted from BV-2 cells and prevent apoptosis by increasing antioxidant and auto/mitophagy mechanisms by regulating mTOR/AMPK signaling in SH-SY5Y cells. Therefore, Brainon has the potential to be developed as a natural product in a brain health functional food to inhibit cognitive decline and neuronal death.
Collapse
Affiliation(s)
- Hae-Lim Kim
- Research Institute, NUON Co., Ltd., Seongnam, Korea
| | - Da-Eun Min
- Research Institute, NUON Co., Ltd., Seongnam, Korea
| | | | | | | |
Collapse
|
2
|
Koul B, Farooq U, Yadav D, Song M. Phytochemicals: A Promising Alternative for the Prevention of Alzheimer's Disease. Life (Basel) 2023; 13:life13040999. [PMID: 37109528 PMCID: PMC10144079 DOI: 10.3390/life13040999] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Revised: 04/06/2023] [Accepted: 04/09/2023] [Indexed: 04/29/2023] Open
Abstract
Alzheimer's disease (AD) is a neurological condition that worsens with ageing and affects memory and cognitive function. Presently more than 55 million individuals are affected by AD all over the world, and it is a leading cause of death in old age. The main purpose of this paper is to review the phytochemical constituents of different plants that are used for the treatment of AD. A thorough and organized review of the existing literature was conducted, and the data under the different sections were found using a computerized bibliographic search through the use of databases such as PubMed, Web of Science, Google Scholar, Scopus, CAB Abstracts, MEDLINE, EMBASE, INMEDPLAN, NATTS, and numerous other websites. Around 360 papers were screened, and, out of that, 258 papers were selected on the basis of keywords and relevant information that needed to be included in this review. A total of 55 plants belonging to different families have been reported to possess different bioactive compounds (galantamine, curcumin, silymarin, and many more) that play a significant role in the treatment of AD. These plants possess anti-inflammatory, antioxidant, anticholinesterase, and anti-amyloid properties and are safe for consumption. This paper focuses on the taxonomic details of the plants, the mode of action of their phytochemicals, their safety, future prospects, limitations, and sustainability criteria for the effective treatment of AD.
Collapse
Affiliation(s)
- Bhupendra Koul
- Department of Biotechnology, Lovely Professional University, Phagwara 144411, Punjab, India
| | - Usma Farooq
- Department of Botany, Lovely Professional University, Phagwara 144411, Punjab, India
| | - Dhananjay Yadav
- Department of Life Sciences, Yeungnam University, Gyeongsan 38541, Republic of Korea
| | - Minseok Song
- Department of Life Sciences, Yeungnam University, Gyeongsan 38541, Republic of Korea
| |
Collapse
|
3
|
Decandia D, Gelfo F, Landolfo E, Balsamo F, Petrosini L, Cutuli D. Dietary Protection against Cognitive Impairment, Neuroinflammation and Oxidative Stress in Alzheimer's Disease Animal Models of Lipopolysaccharide-Induced Inflammation. Int J Mol Sci 2023; 24:ijms24065921. [PMID: 36982996 PMCID: PMC10051444 DOI: 10.3390/ijms24065921] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Revised: 03/14/2023] [Accepted: 03/16/2023] [Indexed: 03/30/2023] Open
Abstract
Alzheimer's disease (AD) is a rapidly growing epidemic with a heavy social and economic burden. Evidence suggests that systemic inflammation, dysregulation of the immune response and the resulting neuroinflammation and neurodegeneration play a significant role in AD pathogenesis. Currently, given that there is no fully convincing cure for AD, the interest in lifestyle factors (such as diet), which potentially delay onset and reduce the severity of symptoms, is increasing. This review is aimed at summarizing the effects of dietary supplementation on cognitive decline, neuroinflammation and oxidative stress in AD-like animal models with a focus on neuroinflammation induced by lipopolysaccharide (LPS) injection, which mimics systemic inflammation in animals. The compounds reviewed include curcumin, krill oil, chicoric acid, plasmalogens, lycopene, tryptophan-related dipeptides, hesperetin and selenium peptides. Despite the heterogeneity of these compounds, there is a strong consensus on their counteracting action on LPS-induced cognitive deficits and neuroinflammatory responses in rodents by modulating cell-signaling processes, such as the NF-κB pathway. Overall, dietary interventions could represent an important resource to oppose AD due to their influence in neuroprotection and immune regulation.
Collapse
Affiliation(s)
- Davide Decandia
- IRCCS Fondazione Santa Lucia, Via Ardeatina 306, 00179 Rome, Italy
- Department of Psychology, Sapienza University of Rome, Via dei Marsi 78, 00185 Rome, Italy
| | - Francesca Gelfo
- IRCCS Fondazione Santa Lucia, Via Ardeatina 306, 00179 Rome, Italy
- Department of Human Sciences, Guglielmo Marconi University, Via Plinio 44, 00193 Rome, Italy
| | - Eugenia Landolfo
- IRCCS Fondazione Santa Lucia, Via Ardeatina 306, 00179 Rome, Italy
| | - Francesca Balsamo
- IRCCS Fondazione Santa Lucia, Via Ardeatina 306, 00179 Rome, Italy
- Department of Human Sciences, Guglielmo Marconi University, Via Plinio 44, 00193 Rome, Italy
| | - Laura Petrosini
- IRCCS Fondazione Santa Lucia, Via Ardeatina 306, 00179 Rome, Italy
| | - Debora Cutuli
- IRCCS Fondazione Santa Lucia, Via Ardeatina 306, 00179 Rome, Italy
- Department of Psychology, Sapienza University of Rome, Via dei Marsi 78, 00185 Rome, Italy
| |
Collapse
|
4
|
Daroi PA, Dhage SN, Juvekar AR. p-Coumaric acid mitigates lipopolysaccharide induced brain damage via alleviating oxidative stress, inflammation and apoptosis. J Pharm Pharmacol 2021; 74:556-564. [DOI: 10.1093/jpp/rgab077] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2020] [Accepted: 05/14/2021] [Indexed: 12/13/2022]
Abstract
Abstract
Objectives
Systemic administration of lipopolysaccharide induces neuroinflammation leading to cognitive deficit and memory impairment. Herein, we investigated the effects of p-Coumaric acid (PCA) in LPS induced neuroinflammation in mice. PCA is reported to possess free radicle scavenging and neuroprotective action.
Methods
Mice received treatment with PCA (80 mg/kg, and 100 mg/kg, p.o.) for 28 days. LPS (0.25 mg/kg) was administered intraperitoneally from Day 15 to 21, to all groups. Memory impairment and cognitive deficit were assessed by MWM and Y maze test, followed by estimation of ROS, TNF-α, IL-6, caspase-3 and c-Jun in the brain homogenate by ELISA. Histopathological changes were investigated using Nissl and H&E staining.
Key findings
PCA attenuated increased oxidative stress, significantly increasing SOD, GSH levels and decreasing MDA level and AChE activity in mice brain, lowered the levels of TNF-α and IL-6 indicating protection against neuroinflammatory reaction. PCA also suppressed neuronal apoptosis, as indicated by decreased levels of caspase-3 and c-Jun. Further, histopathological findings revealed that PCA attenuated neuronal loss and pathological abnormalities in the hippocampus.
Conclusions
Our findings give compulsive evidence suggesting a protective effect of PCA in neuroinflammation, cognitive impairment and neuronal apoptosis induced by LPS, through its antioxidant, AChE inhibitory, anti-inflammatory and antiapoptotic activity determined by behavioural, biochemical and histopathological measures.
Collapse
Affiliation(s)
- Pratibha Atul Daroi
- Department of Pharmaceutical Sciences and Technology, Institute of Chemical Technology, Matunga, Mumbai, India
| | - Shrikant Ninaji Dhage
- Department of Pharmaceutical Sciences and Technology, Institute of Chemical Technology, Matunga, Mumbai, India
| | - Archana Ramesh Juvekar
- Department of Pharmaceutical Sciences and Technology, Institute of Chemical Technology, Matunga, Mumbai, India
| |
Collapse
|
5
|
Alausa A, Ogundepo S, Olaleke B, Adeyemi R, Olatinwo M, Ismail A. Chinese nutraceuticals and physical activity; their role in neurodegenerative tauopathies. Chin Med 2021; 16:1. [PMID: 33407732 PMCID: PMC7789572 DOI: 10.1186/s13020-020-00418-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Accepted: 12/22/2020] [Indexed: 12/12/2022] Open
Abstract
The onset of neurodegenerative disease has not only been a major cause of scientific worry, but of economic burden to the health system. This condition has been further attributed to mis-stability, deletion or mutation of tau protein, causing the onset of Corticobasal degeneration, Pick's diseases, Progressive supranuclear palsy, Argyrophilic grains disease, Alzheimer's diseases etc. as scientifically renowned. This is mainly related to dysregulation of translational machinery, upregulation of proinflammatory cytokines and inhibition of several essential cascades such as ERK signaling cascade, GSK3β, CREB, and PKA/PKB (Akt) signaling cascades that enhances protein processing, normal protein folding, cognitive function, and microtubule associated tau stability. Administration of some nutrients and/or bioactive compounds has a high tendency to impede tau mediated inflammation at neuronal level. Furthermore, prevention and neutralization of protein misfolding through modulation of microtubule tau stability and prevention of protein misfolding is by virtue few of the numerous beneficial effects of physical activity. Of utmost important in this study is the exploration of promising bioactivities of nutraceuticals found in china and the ameliorating potential of physical activity on tauopathies, while highlighting animal and in vitro studies that have been investigated for comprehensive understanding of its potential and an insight into the effects on human highly probable to tau mediated neurodegeneration.
Collapse
Affiliation(s)
- Abdullahi Alausa
- Department of Biochemistry, Faculty of Basic Medical Sciences, Ladoke Akintola University of Technology, Ogbomoso, Oyo, Nigeria
| | - Sunday Ogundepo
- Department of Biochemistry, Faculty of Basic Medical Sciences, Ladoke Akintola University of Technology, Ogbomoso, Oyo, Nigeria
| | - Barakat Olaleke
- Department of Biochemistry, Faculty of Basic Medical Sciences, Ladoke Akintola University of Technology, Ogbomoso, Oyo, Nigeria
| | - Rofiat Adeyemi
- Department of Biochemistry, Faculty of Basic Medical Sciences, Ladoke Akintola University of Technology, Ogbomoso, Oyo, Nigeria.
| | - Mercy Olatinwo
- Department of Biochemistry, Faculty of Basic Medical Sciences, Ladoke Akintola University of Technology, Ogbomoso, Oyo, Nigeria
| | - Aminat Ismail
- Department of Science Laboratory Technology, Faculty of Pure & Applied Sciences, Ladoke Akintola University of Technology, Ogbomoso, Oyo, Nigeria
| |
Collapse
|
6
|
Interplay between Oxidative Stress, Inflammation, and Amyloidosis in the Anterior Segment of the Eye; Its Pathological Implications. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2020; 2020:6286105. [PMID: 32566091 PMCID: PMC7291327 DOI: 10.1155/2020/6286105] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Revised: 05/02/2020] [Accepted: 05/11/2020] [Indexed: 12/11/2022]
Abstract
There are different pathologies associated with amyloidogenic processes caused by the increase of reactive oxygen species (ROS) and the overactivation of inflammatory responses. These alterations are present in different regions of the anterior segment of the eye, and they have been associated with the development and progression of ocular pathologies, such as glaucoma, dry eye syndrome, keratitis, and cataracts among other pathologies. Aim. To discuss briefly the anatomical characteristics of the anterior segment of the eye and describe the interaction between oxidative stress (OS) and inflammatory responses, emphasizing the misfolding of several proteins leading to amyloidogenic processes occurring in the anterior segment and their implications in the development of ocular diseases. We performed a search on PubMed, CINAHL, and Embase using the MeSH terms “eye,” “anterior segment”, “inflammation”, “oxidative stress”, and “amyloidosis”. The search encompassed manuscripts published up to April 2019. A hundred forty-four published studies met the inclusion criteria. We present the current knowledge regarding the interaction between OS and the activation of inflammatory processes and how both can cause conformational changes in several peptides and proteins in each compartment of the anterior segment. However, we found that there is no consensus about which factor is the first to cause amyloidosis. Our conclusions suggest that there is an interplay among these factors forming a vicious cycle that leads to the loss of protein structure in ocular pathologies, and multifactorial therapies should be developed to avoid protein misfolding and to stop the progression of ocular pathologies.
Collapse
|
7
|
Ju Hwang C, Choi DY, Park MH, Hong JT. NF-κB as a Key Mediator of Brain Inflammation in Alzheimer's Disease. CNS & NEUROLOGICAL DISORDERS-DRUG TARGETS 2020; 18:3-10. [PMID: 28782486 DOI: 10.2174/1871527316666170807130011] [Citation(s) in RCA: 100] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2016] [Revised: 04/24/2017] [Accepted: 04/24/2017] [Indexed: 12/22/2022]
Abstract
Alzheimer's disease is the most common form of dementia. It is characterized by betaamyloid peptide fibrils which are extracellular deposition of a specific protein, accompanied by extensive neuroinflammation. Various studies show the presence of a number of inflammation markers in the AD brain: elevated inflammatory cytokines and chemokines, and an accumulation of activated microglia in the damaged regions. NF-κB is a family of redox sensitive transcriptional factors, and it is known that NF-κB has binding sites in the promoter region of the genes involved in amyloidogenesis and inflammation. Long-term use of non-steroidal anti-inflammatory drugs prevents progression of AD and delays its onset, suggesting that there is a close correlation between NF-κB and AD pathogenesis. This study aims to (1) assess the association between NF-κB activity and AD through discussion of a variety of experimental and clinical studies on AD and (2) review treatment strategies designed to treat or prevent AD with NF-κB inhibitors.
Collapse
Affiliation(s)
- Chul Ju Hwang
- College of Pharmacy and Medical Research Center, Chungbuk National University, Osongsaengmyeong 1-ro 194-31, Osong-eup, Heungduk-gu, Cheongju, Chungbuk, 361-951, Korea
| | - Dong-Young Choi
- College of Pharmacy, Yeungnam University, 280 Daehak-ro, Gyeongsan, Gyeongbuk 38541, Korea
| | - Mi Hee Park
- College of Pharmacy and Medical Research Center, Chungbuk National University, Osongsaengmyeong 1-ro 194-31, Osong-eup, Heungduk-gu, Cheongju, Chungbuk, 361-951, Korea
| | - Jin Tae Hong
- College of Pharmacy and Medical Research Center, Chungbuk National University, Osongsaengmyeong 1-ro 194-31, Osong-eup, Heungduk-gu, Cheongju, Chungbuk, 361-951, Korea
| |
Collapse
|
8
|
Neuroinflammation in CNS diseases: Molecular mechanisms and the therapeutic potential of plant derived bioactive molecules. PHARMANUTRITION 2020. [DOI: 10.1016/j.phanu.2020.100176] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
|
9
|
Dutta S, Roy S, Roy S. Functional foods for mental health promotion. JOURNAL OF MAHATMA GANDHI INSTITUTE OF MEDICAL SCIENCES 2020. [DOI: 10.4103/jmgims.jmgims_15_20] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
|
10
|
He P, Yan S, Zheng J, Gao Y, Zhang S, Liu Z, Liu X, Xiao C. Eriodictyol Attenuates LPS-Induced Neuroinflammation, Amyloidogenesis, and Cognitive Impairments via the Inhibition of NF-κB in Male C57BL/6J Mice and BV2 Microglial Cells. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2018; 66:10205-10214. [PMID: 30208700 DOI: 10.1021/acs.jafc.8b03731] [Citation(s) in RCA: 71] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Eriodictyol, a natural flavonoid mainly distributed in citrus fruits and peanut, has been well-documented with possession of excellent anti-inflammatory, antioxidant, and anticancer bioactivities. This work focus on the protective effects of eriodictyol on LPS-induced neuroinflammation, amyloidogenesis, cognitive impairment, and the potential mechanisms involved. Behavioral tests and histological examinations showed that eriodictyol significantly prevented the memory and neuronal damage triggered by LPS. Consistently, eriodictyol (100 mg/kg) reduced the formation of Aβ1-42 by 28.37 ± 16.71 pg/mL compared to the LPS group. In addition, high dose eriodictyol (100 mg/kg) also equilibrated the cholinergic system via suppressing AChE activity (0.1996 ± 0.0831 U/mgprot) and elevating ChAT activity (41.81 ± 24.72 U/g) as well as ACh level (5.093 ± 3.531 μg/mgprot) compared to the LPS group. Western blot results indicated that compared to the LPS group, eriodictyol suppressed LPS-induced glial overactivation (84.29% ± 27.21%) and regulated inflammatory mediators and cytokines by inhibiting the NF-κB and MAPK pathways. These results indicated that eriodictyol alleviated amyloidogenesis and memory impairment triggered by LPS via inhibiting TLR4, MAPKs, and PI3K/Akt, and activating Sirt1 pathways and thus blocking downstream translocation of NF-κB, which offers a potential nutritional preventive strategy for neuroinflammation diseases such as Alzheimer's disease (AD).
Collapse
Affiliation(s)
- Pandi He
- Laboratory of Functional Chemistry and Nutrition of Food, College of Food Science and Engineering , Northwest A&F University , Yangling , China
| | - Shikai Yan
- Laboratory of Functional Chemistry and Nutrition of Food, College of Food Science and Engineering , Northwest A&F University , Yangling , China
| | - Jiaojiao Zheng
- Laboratory of Functional Chemistry and Nutrition of Food, College of Food Science and Engineering , Northwest A&F University , Yangling , China
| | - Yuxing Gao
- Laboratory of Functional Chemistry and Nutrition of Food, College of Food Science and Engineering , Northwest A&F University , Yangling , China
| | - Shuhan Zhang
- Laboratory of Functional Chemistry and Nutrition of Food, College of Food Science and Engineering , Northwest A&F University , Yangling , China
| | - Zhigang Liu
- Laboratory of Functional Chemistry and Nutrition of Food, College of Food Science and Engineering , Northwest A&F University , Yangling , China
| | - Xuebo Liu
- Laboratory of Functional Chemistry and Nutrition of Food, College of Food Science and Engineering , Northwest A&F University , Yangling , China
| | - Chunxia Xiao
- Laboratory of Functional Chemistry and Nutrition of Food, College of Food Science and Engineering , Northwest A&F University , Yangling , China
| |
Collapse
|
11
|
Ding RR, Chen W, Guo CY, Liao WT, Yang X, Liao FE, Lin JM, Mei HF, Zeng Y. Dangguishaoyao-San attenuates LPS-induced neuroinflammation via the TLRs/NF-κB signaling pathway. Biomed Pharmacother 2018; 105:187-194. [PMID: 29857298 DOI: 10.1016/j.biopha.2018.05.108] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2017] [Revised: 05/23/2018] [Accepted: 05/23/2018] [Indexed: 12/11/2022] Open
Abstract
INTRODUCTION Dangguishaoyao-San (DSS) is composed of six traditional Chinese medicines, including Angelica sinensis, Paeoniae radix, Rhizoma Ligusticum, Poria cocos, Rhizoma Atractylodis Macrocephalae, and Rhizoma Alismatis. DSS has been reported to be effective in alleviating the symptoms of Alzheimer's disease (AD). The aim of this study was to investigate the mechanism of action of DSS in vitro using lipopolysaccharide (LPS)-stimulated BV-2 microglia cells. MATERIALS AND METHODS BV-2 cells were pretreated with 0.58-1.16 mg/mL of DSS for 2 h and then treated with 1 μg/mL LPS for 24 h. Cell viability was determined by an 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay. The protein expression levels were measured by Western blots. Inflammatory factors were detected by enzyme-linked immunosorbent assays (ELISAs). The mRNA levels of inflammatory factors were analyzed by quantitative real-time PCR (qRT-PCR). RESULTS DSS treatment at concentrations of 0.58-1.16 mg/mL resulted in no significant cytotoxicity. DSS attenuated the release of pro-inflammatory factors, such as interleukin-1β (IL-1β), iNOS and tumor necrosis factor-α (TNF-α) in LPS-induced BV-2 cells. DSS attenuated the mRNA expression of pro-inflammatory cytokines, TLR2, and TLR4 and decreased TLR4 and TLR protein levels as well as the phosphorylation of IκB in LPS-induced BV-2 cells. DSS also down-regulated the nuclear translocation of p65. CONCLUSION This study demonstrated that DSS has a protective effect on neuroinflammation in LPS-induced BV-2 microglia cells through the TLRs/NF-κB signaling pathway.
Collapse
Affiliation(s)
- Rui-Rui Ding
- State Administration of TCM, PR China; Key Laboratory of Digital Quality Evaluation of Chinese Materia Medica, College of Traditional Chinese Medicine, Guangdong Pharmaceutical University, Guangzhou, Guangdong 510006, PR China
| | - Wang Chen
- State Administration of TCM, PR China; Key Laboratory of Digital Quality Evaluation of Chinese Materia Medica, College of Traditional Chinese Medicine, Guangdong Pharmaceutical University, Guangzhou, Guangdong 510006, PR China
| | - Cong-Ying Guo
- State Administration of TCM, PR China; Key Laboratory of Digital Quality Evaluation of Chinese Materia Medica, College of Traditional Chinese Medicine, Guangdong Pharmaceutical University, Guangzhou, Guangdong 510006, PR China
| | - Wei-Tao Liao
- State Administration of TCM, PR China; Key Laboratory of Digital Quality Evaluation of Chinese Materia Medica, College of Traditional Chinese Medicine, Guangdong Pharmaceutical University, Guangzhou, Guangdong 510006, PR China
| | - Xia Yang
- Department of Biochemistry and Molecular Biology, Guangdong Pharmaceutical University, Guangzhou, Guangdong, PR China
| | - Feng-Er Liao
- The First Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou, Guangdong, PR China
| | - Jing-Ming Lin
- Zhu Jiang Hospital of Southern Medical University, Guangzhou, Guangdong, PR China.
| | - Han-Fang Mei
- Department of Biochemistry and Molecular Biology, Guangdong Pharmaceutical University, Guangzhou, Guangdong, PR China.
| | - Yu Zeng
- State Administration of TCM, PR China; Key Laboratory of Digital Quality Evaluation of Chinese Materia Medica, College of Traditional Chinese Medicine, Guangdong Pharmaceutical University, Guangzhou, Guangdong 510006, PR China.
| |
Collapse
|
12
|
Gu SM, Lee HP, Ham YW, Son DJ, Kim HY, Oh KW, Han SB, Yun J, Hong JT. Piperlongumine Improves Lipopolysaccharide-Induced Amyloidogenesis by Suppressing NF-KappaB Pathway. Neuromolecular Med 2018; 20:312-327. [PMID: 29802525 PMCID: PMC6097046 DOI: 10.1007/s12017-018-8495-9] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2018] [Accepted: 05/19/2018] [Indexed: 01/02/2023]
Abstract
Amyloidogenesis is known to cause Alzheimer's disease. Our previous studies have found that lipopolysaccharide (LPS) causes neuroinflammation and amyloidogenesis through activation of nuclear factor kappaB (NF-κB). Piperlongumine (PL) is an alkaloid amide found naturally in long pepper (Piper longum) isolates; it was reported to have inhibitory effects on NF-κB activity. We therefore investigated whether PL exhibits anti-inflammatory and anti-amyloidogenic effects by inhibiting NF-κB. A murine model of LPS-induced memory impairment was made via the intraperitoneal (i.p.) injection of LPS (0.25 mg/kg/day, i.p.). We then injected PL (1.5 or 3.0 mg/kg/day, i.p.) for 7 days in three groups of mice to observe effects on memory. We also conducted an in vitro study with astrocytes and microglial BV-2 cells, which were treated with LPS (1 µg/mL) or PL (0.5 or 1.0 or 2.5 µM). Results from our behavioral tests showed that PL inhibited LPS-induced memory. PL also prevented LPS-induced beta-amyloid (Aβ) accumulation and inhibited the activities of β- and γ-secretases. The expression of inflammatory proteins also was decreased in PL-treated mice, cultured BV-2, and primary astrocyte cells. These effects were associated with the inhibition of NF-κB activity. A docking model analysis and pull-down assay showed that PL binds to p50. Taken together, our findings suggest that PL diminishes LPS-induced amyloidogenesis and neuroinflammation by inhibiting NF-κB signaling; PL therefore demonstrates potential for the treatment of Alzheimer's disease.
Collapse
Affiliation(s)
- Sun Mi Gu
- College of Pharmacy and Medical Research Center, Chungbuk National University, 194-31 Osongsaemgmyeong 1-ro, Osong-eup, Heungdeok-gu, Cheongju-si, Chungbuk, 28160, Republic of Korea
| | - Hee Pom Lee
- College of Pharmacy and Medical Research Center, Chungbuk National University, 194-31 Osongsaemgmyeong 1-ro, Osong-eup, Heungdeok-gu, Cheongju-si, Chungbuk, 28160, Republic of Korea
| | - Young Wan Ham
- Department of Chemistry, Utah Valley University, 800W University Pkwy, Orem, UT, 84058, USA
| | - Dong Ju Son
- College of Pharmacy and Medical Research Center, Chungbuk National University, 194-31 Osongsaemgmyeong 1-ro, Osong-eup, Heungdeok-gu, Cheongju-si, Chungbuk, 28160, Republic of Korea
| | - Hoi Yeong Kim
- Department of Food Science and Technology, Korea National University of Transportation, 61 Daehak-ro, Jeungpyeong-eup, Jeungpyeong-gun, Chungbuk, 27909, Republic of Korea
| | - Ki Wan Oh
- College of Pharmacy and Medical Research Center, Chungbuk National University, 194-31 Osongsaemgmyeong 1-ro, Osong-eup, Heungdeok-gu, Cheongju-si, Chungbuk, 28160, Republic of Korea
| | - Sang-Bae Han
- College of Pharmacy and Medical Research Center, Chungbuk National University, 194-31 Osongsaemgmyeong 1-ro, Osong-eup, Heungdeok-gu, Cheongju-si, Chungbuk, 28160, Republic of Korea
| | - Jaesuk Yun
- Department of Neuroimmunology, College of Pharmacy, Wonkwang University, 460 Iksan-daero, Iksan-si, Jeonbuk, 54538, Republic of Korea.
| | - Jin Tae Hong
- College of Pharmacy and Medical Research Center, Chungbuk National University, 194-31 Osongsaemgmyeong 1-ro, Osong-eup, Heungdeok-gu, Cheongju-si, Chungbuk, 28160, Republic of Korea.
| |
Collapse
|
13
|
You MM, Chen YF, Pan YM, Liu YC, Tu J, Wang K, Hu FL. Royal Jelly Attenuates LPS-Induced Inflammation in BV-2 Microglial Cells through Modulating NF- κB and p38/JNK Signaling Pathways. Mediators Inflamm 2018; 2018:7834381. [PMID: 29849495 PMCID: PMC5911318 DOI: 10.1155/2018/7834381] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2017] [Revised: 02/05/2018] [Accepted: 03/08/2018] [Indexed: 12/13/2022] Open
Abstract
Royal jelly (RJ), a hive product with versatile pharmacological activities, has been used as a traditional functional food to prevent or treat inflammatory diseases. However, little is known about the anti-inflammatory effect of RJ in microglial cells. The aim of this study is to assess the anti-inflammatory effects of RJ in lipopolysaccharide- (LPS-) induced murine immortalized BV-2 cells and to explore the underlying molecular mechanisms. Our results showed that in LPS-stimulated BV-2 cells, RJ significantly inhibited iNOS and COX-2 expression at mRNA and protein levels. The mRNA expression of IL-6, IL-1β, and TNF-α was also downregulated by RJ in a concentration-dependent manner. Additionally, RJ protected BV-2 cells against oxidative stress by upregulating heme oxygenase-1 (HO-1) expression and by reducing reactive oxygen species (ROS) and nitric oxide (NO) production. Mechanistically, we found that RJ could alleviate inflammatory response in microglia by suppressing the phosphorylation of IκBα, p38, and JNK and by inhibiting the nucleus translocation of NF-κB p65. These findings suggest that RJ might be a promising functional food to delay inflammatory progress by influencing the microglia function.
Collapse
Affiliation(s)
- Meng-Meng You
- College of Animal Sciences, Zhejiang University, Hangzhou 310058, China
| | - Yi-Fan Chen
- College of Animal Sciences, Zhejiang University, Hangzhou 310058, China
| | - Yong-Ming Pan
- College of Animal Sciences, Zhejiang University, Hangzhou 310058, China
- Comparative Medical Research Center, Experimental Animal Research Center, Zhejiang Chinese Medical University, Hangzhou 310053, China
| | - Yi-Chen Liu
- College of Animal Sciences, Zhejiang University, Hangzhou 310058, China
| | - Jue Tu
- Comparative Medical Research Center, Experimental Animal Research Center, Zhejiang Chinese Medical University, Hangzhou 310053, China
| | - Kai Wang
- Institute of Apicultural Research, Chinese Academy of Agricultural Sciences, Beijing 100093, China
| | - Fu-Liang Hu
- College of Animal Sciences, Zhejiang University, Hangzhou 310058, China
| |
Collapse
|
14
|
Wang J, Li L, Wang Z, Cui Y, Tan X, Yuan T, Liu Q, Liu Z, Liu X. Supplementation of lycopene attenuates lipopolysaccharide-induced amyloidogenesis and cognitive impairments via mediating neuroinflammation and oxidative stress. J Nutr Biochem 2018; 56:16-25. [PMID: 29454265 DOI: 10.1016/j.jnutbio.2018.01.009] [Citation(s) in RCA: 96] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2017] [Revised: 12/19/2017] [Accepted: 01/16/2018] [Indexed: 01/13/2023]
Abstract
Neuroinflammation is documented to be the major culprit of Alzheimer's disease. Lycopene (LYC), a fat soluble carotenoid, exhibits neuroprotective function in several neurodegenerative disorders. However, the effects of LYC to countering systemic inflammation-induced amyloidogenesis and memory deficiency remain to be elucidated. In current study, 3-month-old male C57BL/6J mice were treated with 0.03% LYC (w/w, mixed into normal chow) for 5 weeks. The mice were then treated by intraperitoneal injection of LPS (0.25mg/kg) for 9 days. It was found that LYC inhibited LPS-induced memory loss by behavior tests including Y-maze test and Morris water test. Meanwhile, LYC prevented LPS-induced accumulation of Aβ, levels of amyloid precursor protein (APP), and suppressed neuronal β-secretase BACE1 and elevated the expressions of α-secretase ADAM10. Furthermore, LYC down-regulated the expression of IBA-1 (a marker of microglia activation), reduced the levels of inflammatory mediators and inhibited oxidative stress in LPS-treated mice. Moreover, LYC suppressed the phosphorylation of MAPKs, NFκB, and activated Nrf2 signaling pathways in LPS-treated BV2 microglial cells. Therefore, our study indicated that LYC could ameliorate LPS-induced neuroinflammation, oxidative stress, amyloidogenesis and cognitive impairments possibly through mediating MAPKs, NFκB and Nrf2 signaling pathways, indicating that LYC might be a nutritional preventive strategy in neuroinflammation-related diseases such as AD.
Collapse
Affiliation(s)
- Jia Wang
- Laboratory of Functional Chemistry and Nutrition of Food, College of Food Science and Engineering, Northwest A&F University, Yangling, China
| | - Lixia Li
- Laboratory of Functional Chemistry and Nutrition of Food, College of Food Science and Engineering, Northwest A&F University, Yangling, China
| | - Zhuo Wang
- Laboratory of Functional Chemistry and Nutrition of Food, College of Food Science and Engineering, Northwest A&F University, Yangling, China
| | - Yifan Cui
- Laboratory of Functional Chemistry and Nutrition of Food, College of Food Science and Engineering, Northwest A&F University, Yangling, China
| | - Xintong Tan
- Laboratory of Functional Chemistry and Nutrition of Food, College of Food Science and Engineering, Northwest A&F University, Yangling, China
| | - Tian Yuan
- Laboratory of Functional Chemistry and Nutrition of Food, College of Food Science and Engineering, Northwest A&F University, Yangling, China
| | - Qian Liu
- Laboratory of Functional Chemistry and Nutrition of Food, College of Food Science and Engineering, Northwest A&F University, Yangling, China
| | - Zhigang Liu
- Laboratory of Functional Chemistry and Nutrition of Food, College of Food Science and Engineering, Northwest A&F University, Yangling, China.
| | - Xuebo Liu
- Laboratory of Functional Chemistry and Nutrition of Food, College of Food Science and Engineering, Northwest A&F University, Yangling, China.
| |
Collapse
|
15
|
Hwang CJ, Lee HP, Choi DY, Jeong HS, Kim TH, Lee TH, Kim YM, Moon DB, Park SS, Kim SY, Oh KW, Hwang DY, Han SB, Lee HJ, Hong JT. Inhibitory effect of thiacremonone on MPTP-induced dopaminergic neurodegeneration through inhibition of p38 activation. Oncotarget 2018; 7:46943-46958. [PMID: 27409674 PMCID: PMC5216915 DOI: 10.18632/oncotarget.10504] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2016] [Accepted: 06/30/2016] [Indexed: 12/11/2022] Open
Abstract
Neuroinflammation is implicated for dopaminergic neurodegeneration. Sulfur compounds extracted from garlic have been shown to have anti-inflammatory properties. Previously, we have investigated that thiacremonone, a sulfur compound isolated from garlic has anti-inflammatory effects on several inflammatory disease models. To investigate the protective effect of thiacremonone against 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP)-induced behavioral impairment and dopaminergic neurodegeneration, 8 week old ICR mice were given thiacremonone (10 mg/kg) in drinking water for 1 month and received intraperitoneal injection of MPTP (15 mg/kg, four times with 2 h interval) during the last 7 days of treatment. Our data showed that thiacremonone decreased MPTP-induced behavioral impairments (Rotarod test, Pole test, and Gait test), dopamine depletion and microglia and astrocytes activations as well as neuroinflammation. Higher activation of p38 was found in the substantia nigra and striatum after MPTP injection, but p38 activation was reduced in thiacremonone treated group. In an in vitro study, thiacremonone (1, 2, and 5 μg/ml) effectively decreased MPP+ (0.5 mM)-induced glial activation, inflammatory mediators generation and dopaminergic neurodegeneration in cultured astrocytes and microglial BV-2 cells. Moreover, treatment of p38 MAPK inhibitor SB203580 (10 μM) further inhibited thiacremonone induced reduction of neurodegeneration and neuroinflammation. These results indicated that the anti-inflammatory compound, thiacremonone, inhibited neuroinflammation and dopaminergic neurodegeneration through inhibition of p38 activation.
Collapse
Affiliation(s)
- Chul Ju Hwang
- College of Pharmacy and Medical Research Center, Chungbuk National University, Osongsaengmyeong, Osong-eup, Heungduk-gu, Cheongju, Chungbuk, Republic of Korea
| | - Hee Pom Lee
- College of Pharmacy and Medical Research Center, Chungbuk National University, Osongsaengmyeong, Osong-eup, Heungduk-gu, Cheongju, Chungbuk, Republic of Korea
| | - Dong-Young Choi
- College of Pharmacy, Yeungnam University, Daehak-Ro, Gyeongsan, Gyeongbuk, Republic of Korea
| | - Heon Sang Jeong
- College of Agriculture, Life and Environments Sciences, Chungbuk National University, Osongsaengmyeong, Osong-eup, Heungduk-gu, Cheongju, Chungbuk, Republic of Korea
| | - Tae Hoon Kim
- College of Pharmacy and Medical Research Center, Chungbuk National University, Osongsaengmyeong, Osong-eup, Heungduk-gu, Cheongju, Chungbuk, Republic of Korea
| | - Tae Hyung Lee
- College of Pharmacy and Medical Research Center, Chungbuk National University, Osongsaengmyeong, Osong-eup, Heungduk-gu, Cheongju, Chungbuk, Republic of Korea
| | - Young Min Kim
- College of Pharmacy and Medical Research Center, Chungbuk National University, Osongsaengmyeong, Osong-eup, Heungduk-gu, Cheongju, Chungbuk, Republic of Korea
| | - Dae Bong Moon
- College of Pharmacy and Medical Research Center, Chungbuk National University, Osongsaengmyeong, Osong-eup, Heungduk-gu, Cheongju, Chungbuk, Republic of Korea
| | - Sung Sik Park
- College of Pharmacy and Medical Research Center, Chungbuk National University, Osongsaengmyeong, Osong-eup, Heungduk-gu, Cheongju, Chungbuk, Republic of Korea
| | - Sun Young Kim
- College of Pharmacy and Medical Research Center, Chungbuk National University, Osongsaengmyeong, Osong-eup, Heungduk-gu, Cheongju, Chungbuk, Republic of Korea
| | - Ki-Wan Oh
- College of Pharmacy and Medical Research Center, Chungbuk National University, Osongsaengmyeong, Osong-eup, Heungduk-gu, Cheongju, Chungbuk, Republic of Korea
| | - Dae Yeon Hwang
- College of Natural Resources & Life Science, Pusan National University, Pusan, Republic of Korea
| | - Sang-Bae Han
- College of Pharmacy and Medical Research Center, Chungbuk National University, Osongsaengmyeong, Osong-eup, Heungduk-gu, Cheongju, Chungbuk, Republic of Korea
| | - Hwa-Jeong Lee
- College of Pharmacy and Medical Research Center, Chungbuk National University, Osongsaengmyeong, Osong-eup, Heungduk-gu, Cheongju, Chungbuk, Republic of Korea
| | - Jin Tae Hong
- College of Pharmacy and Medical Research Center, Chungbuk National University, Osongsaengmyeong, Osong-eup, Heungduk-gu, Cheongju, Chungbuk, Republic of Korea
| |
Collapse
|
16
|
Choi JY, Jang JS, Son DJ, Im HS, Kim JY, Park JE, Choi WR, Han SB, Hong JT. Antarctic Krill Oil Diet Protects against Lipopolysaccharide-Induced Oxidative Stress, Neuroinflammation and Cognitive Impairment. Int J Mol Sci 2017; 18:ijms18122554. [PMID: 29182579 PMCID: PMC5751157 DOI: 10.3390/ijms18122554] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2017] [Revised: 11/19/2017] [Accepted: 11/22/2017] [Indexed: 12/15/2022] Open
Abstract
Oxidative stress and neuroinflammation are implicated in the development and pathogenesis of Alzheimer’s disease (AD). Here, we investigated the anti-inflammatory and antioxidative effects of krill oil. Oil from Euphausia superba (Antarctic krill), an Antarctic marine species, is rich in eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA). We examined whether krill oil diet (80 mg/kg/day for one month) prevents amyloidogenesis and cognitive impairment induced by intraperitoneal lipopolysaccharide (LPS) (250 µg/kg, seven times daily) injections in AD mice model and found that krill oil treatment inhibited the LPS-induced memory loss. We also found that krill oil treatment inhibited the LPS-induced expression of inducible nitric oxide synthase (iNOS) and cyclooxygenase-2 (COX-2) and decreased reactive oxygen species (ROS) and malondialdehyde levels. Krill oil also suppresses IκB degradation as well as p50 and p65 translocation into the nuclei of LPS-injected mice brain cells. In association with the inhibitory effect on neuroinflammation and oxidative stress, krill oil suppressed amyloid beta (1–42) peptide generation by the down-regulating APP and BACE1 expression in vivo. We found that eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) (50 and 100 µM) dose-dependently decreased LPS-induced nitric oxide and ROS generation, and COX-2 and iNOS expression as well as nuclear factor-κB activity in cultured microglial BV-2 cells. These results suggest that krill oil ameliorated impairment via anti-inflammatory, antioxidative, and anti-amyloidogenic mechanisms.
Collapse
Affiliation(s)
- Ji Yeon Choi
- College of Pharmacy and Medical Research Center, Chungbuk National University, 194-31 Osongsaemgmyeong 1-ro, Osong-eup, Heungdeok-gu, Cheongju 28160, Chungbuk, Korea.
| | - Jun Sung Jang
- College of Pharmacy and Medical Research Center, Chungbuk National University, 194-31 Osongsaemgmyeong 1-ro, Osong-eup, Heungdeok-gu, Cheongju 28160, Chungbuk, Korea.
| | - Dong Ju Son
- College of Pharmacy and Medical Research Center, Chungbuk National University, 194-31 Osongsaemgmyeong 1-ro, Osong-eup, Heungdeok-gu, Cheongju 28160, Chungbuk, Korea.
| | - Hyung-Sik Im
- College of Pharmacy and Medical Research Center, Chungbuk National University, 194-31 Osongsaemgmyeong 1-ro, Osong-eup, Heungdeok-gu, Cheongju 28160, Chungbuk, Korea.
| | - Ji Yeong Kim
- College of Pharmacy and Medical Research Center, Chungbuk National University, 194-31 Osongsaemgmyeong 1-ro, Osong-eup, Heungdeok-gu, Cheongju 28160, Chungbuk, Korea.
| | - Joung Eun Park
- College of Pharmacy and Medical Research Center, Chungbuk National University, 194-31 Osongsaemgmyeong 1-ro, Osong-eup, Heungdeok-gu, Cheongju 28160, Chungbuk, Korea.
| | - Won Rak Choi
- College of Pharmacy and Medical Research Center, Chungbuk National University, 194-31 Osongsaemgmyeong 1-ro, Osong-eup, Heungdeok-gu, Cheongju 28160, Chungbuk, Korea.
| | - Sang-Bae Han
- College of Pharmacy and Medical Research Center, Chungbuk National University, 194-31 Osongsaemgmyeong 1-ro, Osong-eup, Heungdeok-gu, Cheongju 28160, Chungbuk, Korea.
| | - Jin Tae Hong
- College of Pharmacy and Medical Research Center, Chungbuk National University, 194-31 Osongsaemgmyeong 1-ro, Osong-eup, Heungdeok-gu, Cheongju 28160, Chungbuk, Korea.
| |
Collapse
|
17
|
Choi JY, Hwang CJ, Lee HP, Kim HS, Han SB, Hong JT. Inhibitory effect of ethanol extract of Nannochloropsis oceanica on lipopolysaccharide-induced neuroinflammation, oxidative stress, amyloidogenesis and memory impairment. Oncotarget 2017; 8:45517-45530. [PMID: 28489589 PMCID: PMC5542205 DOI: 10.18632/oncotarget.17268] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2017] [Accepted: 03/26/2017] [Indexed: 12/20/2022] Open
Abstract
Oxidative stress and neuroinflammation is implicated in the pathogenesis and development of Alzheimer's disease (AD). Here, we investigated the suppressive possibility of ethanol extract of Nannochloropsis oceanica (N. oceanica) on memory deficiency along with the fundamental mechanisms in lipopolysaccharide (LPS)-treated mice model. Among several extracts of 32 marine microalgae, ethanol extract of N. oceanica showed the most significant inhibitory effect on nitric oxide (NO) generation, NF-κB activity and β-secretase activity in cultured BV-2 cells, neuronal cells and Raw 264.7 cells. Ethanol extract of N. oceanica (50, 100 mg/kg) also ameliorated LPS (250 μg/kg)-induced memory impairment. We also found that ethanol extract of N. oceanica inhibited the LPS-induced expression of iNOS and COX-2. Furthermore, the production of reactive oxygen species (ROS), malondialdehyde (MDA) level as well as glutathione (GSH) level was also decreased by treatment of ethanol extract of N.oceanica. The ethanol extract of N. oceanica also suppresses IκB degradation as well as p50 and p65 translocation into the nucleus in LPS-treated mice brain. Associated with the inhibitory effect on neuroinflammation and oxidative stress, ethanol extract of N. oceanica suppressed Aβ1-42 generation through down-regulation of APP and BACE1 expression in in vivo. These results suggest that ethanol extract of N. oceanica ameliorated memory impairment via anti-inflammatory, anti-oxidant and anti-amyloidogenic mechanisms.
Collapse
Affiliation(s)
- Ji Yeon Choi
- College of Pharmacy and Medical Research Center, Chungbuk National University, Osong-eup, Heungdeok-gu, Cheongju, Chungbuk 28160, Republic of Korea
| | - Chul Ju Hwang
- College of Pharmacy and Medical Research Center, Chungbuk National University, Osong-eup, Heungdeok-gu, Cheongju, Chungbuk 28160, Republic of Korea
| | - Hee Pom Lee
- College of Pharmacy and Medical Research Center, Chungbuk National University, Osong-eup, Heungdeok-gu, Cheongju, Chungbuk 28160, Republic of Korea
| | - Hee Sik Kim
- Sustainable Bioresource Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Yuseoung, Daejeon 305-806, Republic of Korea
| | - Sang-Bae Han
- College of Pharmacy and Medical Research Center, Chungbuk National University, Osong-eup, Heungdeok-gu, Cheongju, Chungbuk 28160, Republic of Korea
| | - Jin Tae Hong
- College of Pharmacy and Medical Research Center, Chungbuk National University, Osong-eup, Heungdeok-gu, Cheongju, Chungbuk 28160, Republic of Korea
| |
Collapse
|
18
|
Kim YE, Hwang CJ, Lee HP, Kim CS, Son DJ, Ham YW, Hellström M, Han SB, Kim HS, Park EK, Hong JT. Inhibitory effect of punicalagin on lipopolysaccharide-induced neuroinflammation, oxidative stress and memory impairment via inhibition of nuclear factor-kappaB. Neuropharmacology 2017; 117:21-32. [DOI: 10.1016/j.neuropharm.2017.01.025] [Citation(s) in RCA: 69] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2016] [Revised: 01/23/2017] [Accepted: 01/25/2017] [Indexed: 12/13/2022]
|
19
|
Park KR, Kim JY, Hong JT, Yun HM. A novel organosulfur compound, thiacremonone, regulates RANKL-induced osteoclast differentiation. RSC Adv 2017. [DOI: 10.1039/c7ra02049j] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The medicinal properties of functionally active organosulfur compounds have received great attention for applications in treating various diseases.
Collapse
Affiliation(s)
- Kyung-Ran Park
- Department of Oral & Maxillofacial Regeneration
- Graduate School
- Kyung Hee University
- Seoul 130-701
- Republic of Korea
| | - Ji-Youn Kim
- Department of Dental Hygiene
- College of Health Science
- Gachon University
- Incheon
- Republic of Korea
| | - Jin Tae Hong
- College of Pharmacy and Medical Research Center
- Chungbuk National University
- Chungbuk 361-763
- Republic of Korea
| | - Hyung-Mun Yun
- Department of Oral and Maxillofacial Pathology
- School of Dentistry
- Kyung Hee University
- Seoul 130-701
- Republic of Korea
| |
Collapse
|
20
|
Liu Z, Chen Y, Qiao Q, Sun Y, Liu Q, Ren B, Liu X. Sesamol supplementation prevents systemic inflammation-induced memory impairment and amyloidogenesis via inhibition of nuclear factor kappaB. Mol Nutr Food Res 2016; 61. [DOI: 10.1002/mnfr.201600734] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2016] [Revised: 11/06/2016] [Accepted: 11/08/2016] [Indexed: 02/04/2023]
Affiliation(s)
- Zhigang Liu
- Laboratory of Functional Chemistry and Nutrition of Food; College of Food Science and Engineering; Northwest A&F University; Yangling China
| | - Yuwei Chen
- Laboratory of Functional Chemistry and Nutrition of Food; College of Food Science and Engineering; Northwest A&F University; Yangling China
| | - Qinglian Qiao
- Laboratory of Functional Chemistry and Nutrition of Food; College of Food Science and Engineering; Northwest A&F University; Yangling China
| | - Yali Sun
- Laboratory of Functional Chemistry and Nutrition of Food; College of Food Science and Engineering; Northwest A&F University; Yangling China
| | - Qian Liu
- Laboratory of Functional Chemistry and Nutrition of Food; College of Food Science and Engineering; Northwest A&F University; Yangling China
| | - Bo Ren
- Laboratory of Functional Chemistry and Nutrition of Food; College of Food Science and Engineering; Northwest A&F University; Yangling China
| | - Xuebo Liu
- Laboratory of Functional Chemistry and Nutrition of Food; College of Food Science and Engineering; Northwest A&F University; Yangling China
| |
Collapse
|
21
|
Park S, Kang S, Kim DS, Moon BR. Agrimonia pilosa Ledeb., Cinnamomum cassia Blume, and Lonicera japonica Thunb. protect against cognitive dysfunction and energy and glucose dysregulation by reducing neuroinflammation and hippocampal insulin resistance in β-amyloid-infused rats. Nutr Neurosci 2016; 20:77-88. [DOI: 10.1080/1028415x.2015.1135572] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Sunmin Park
- Department of Food and Nutrition, Obesity/Diabetes Center, Hoseo University, 165 Sechul-Ri, BaeBang-Yup, Asan-Si, ChungNam-Do 336–795, South Korea
| | - Suna Kang
- Department of Food and Nutrition, Obesity/Diabetes Center, Hoseo University, 165 Sechul-Ri, BaeBang-Yup, Asan-Si, ChungNam-Do 336–795, South Korea
| | - Da Sol Kim
- Department of Food and Nutrition, Obesity/Diabetes Center, Hoseo University, 165 Sechul-Ri, BaeBang-Yup, Asan-Si, ChungNam-Do 336–795, South Korea
| | - Bo Rerum Moon
- Department of Food and Nutrition, Obesity/Diabetes Center, Hoseo University, 165 Sechul-Ri, BaeBang-Yup, Asan-Si, ChungNam-Do 336–795, South Korea
| |
Collapse
|
22
|
Gu SM, Park MH, Hwang CJ, Song HS, Lee US, Han SB, Oh KW, Ham YW, Song MJ, Son DJ, Hong JT. Bee venom ameliorates lipopolysaccharide-induced memory loss by preventing NF-kappaB pathway. J Neuroinflammation 2015; 12:124. [PMID: 26112466 PMCID: PMC4501073 DOI: 10.1186/s12974-015-0344-2] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2015] [Accepted: 06/15/2015] [Indexed: 12/11/2022] Open
Abstract
Background Accumulation of beta-amyloid and neuroinflammation trigger Alzheimer’s disease. We previously found that lipopolysaccharide (LPS) caused neuroinflammation with concomitant accumulation of beta-amyloid peptides leading to memory loss. A variety of anti-inflammatory compounds inhibiting nuclear factor kappaB (NF-κB) activation have showed efficacy to hinder neuroinflammation and amyloidogenesis. We also found that bee venom (BV) inhibits NF-κB. Methods A mouse model of LPS-induced memory loss used administration of BV (0.8 and 1.6 μg/kg/day, i.p.) to ICR mice for 7 days before injection of LPS (2.5 mg/kg/day, i.p.). Memory loss was assessed using a Morris water maze test and passive avoidance test. For in vitro study, we treated BV (0.5, 1, and 2 μg/mL) to astrocytes and microglial BV-2 cells with LPS (1 μg/mL). Results We found that BV inhibited LPS-induced memory loss determined by behavioral tests as well as cell death. BV also inhibited LPS-induced increases in the level of beta-amyloid (Aβ), β-and γ-secretases activities, NF-κB and its DNA-binding activity and expression of APP, and BACE1 and neuroinflammation proteins (COX-2, iNOS, GFAP and IBA-1) in the brain and cultured cells. In addition, pull-down assay and molecular modeling showed that BV binds to NF-κB. Conclusions BV attenuates LPS-induced amyloidogenesis, neuroinflammation, and therefore memory loss via inhibiting NF-κB signaling pathway. Thus, BV could be useful for treatment of Alzheimer’s disease.
Collapse
Affiliation(s)
- Sun Mi Gu
- College of Pharmacy and Medical Research Center, Chungbuk National University, 194-31 Osongsaemgmyeong 1-ro, Osong-eup, Heungdeok-gu, Cheongju, Chungbuk, 361-951, Republic of Korea
| | - Mi Hee Park
- College of Pharmacy and Medical Research Center, Chungbuk National University, 194-31 Osongsaemgmyeong 1-ro, Osong-eup, Heungdeok-gu, Cheongju, Chungbuk, 361-951, Republic of Korea
| | - Chul Ju Hwang
- College of Pharmacy and Medical Research Center, Chungbuk National University, 194-31 Osongsaemgmyeong 1-ro, Osong-eup, Heungdeok-gu, Cheongju, Chungbuk, 361-951, Republic of Korea
| | - Ho Sueb Song
- College of Oriental Medicine, Gachon University, San 65, Bokjeong-dong, Sujeong-gu, Seongnam, Gyeonggii-do, 461-701, Republic of Korea
| | - Ung Soo Lee
- Department of Food Science & Technology, Korea National University of Transportation, Jeungpyeong, 368-701, Republic of Korea
| | - Sang Bae Han
- College of Pharmacy and Medical Research Center, Chungbuk National University, 194-31 Osongsaemgmyeong 1-ro, Osong-eup, Heungdeok-gu, Cheongju, Chungbuk, 361-951, Republic of Korea
| | - Ki Wan Oh
- College of Pharmacy and Medical Research Center, Chungbuk National University, 194-31 Osongsaemgmyeong 1-ro, Osong-eup, Heungdeok-gu, Cheongju, Chungbuk, 361-951, Republic of Korea
| | - Young Wan Ham
- Department of Chemistry, Utah Valley University, 800 W University Pkwy, Orem, UT, 84058, USA
| | - Min Jong Song
- Department of Obstetrics and Gynecology, Daejeon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, 64 Daeheung-ro, Jung gu, Daejeon, 301-723, Republic of Korea
| | - Dong Ju Son
- College of Pharmacy and Medical Research Center, Chungbuk National University, 194-31 Osongsaemgmyeong 1-ro, Osong-eup, Heungdeok-gu, Cheongju, Chungbuk, 361-951, Republic of Korea.
| | - Jin Tae Hong
- College of Pharmacy and Medical Research Center, Chungbuk National University, 194-31 Osongsaemgmyeong 1-ro, Osong-eup, Heungdeok-gu, Cheongju, Chungbuk, 361-951, Republic of Korea.
| |
Collapse
|
23
|
Zhang HR, Peng JH, Cheng XB, Shi BZ, Zhang MY, Xu RX. Paeoniflorin Atttenuates Amyloidogenesis and the Inflammatory Responses in a Transgenic Mouse Model of Alzheimer's Disease. Neurochem Res 2015; 40:1583-92. [PMID: 26068144 DOI: 10.1007/s11064-015-1632-z] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2014] [Revised: 05/28/2015] [Accepted: 06/01/2015] [Indexed: 01/05/2023]
Abstract
Alzheimer's disease (AD) is associated with the inflammatory response in response to amyloid β-peptide (Aβ). Previous studies have suggested that paeoniflorin (PF) shows anti-inflammatory and neuroprotective effects in inflammation-related diseases. However, the impacts of PF on AD have not been investigated. In the present study, we showed that a 4-week treatment with PF could significantly inhibit Aβ burden, Aβ-induced over activation of astrocytes and microglia, downregulation of proinflammatory cytokines, and upregulation of anti-inflammatory cytokines in the brain. In addition, we demonstrated that chronic treatment with PF inhibited the activation of glycogen synthase kinase 3β (GSK-3β) and reversed neuroinflammtory-induced activation of nuclear factor-kappa B (NF-κB) signaling pathways. Moreover, PF exerted inhibitory effects on NALP3 inflammasome, caspase-1, and IL-1β. Collectively, in the present study, we demonstrated that PF exhibits neuroprotective effects in amyloid precursor protein (APP) and presenilin 1 (PS1) double-transgenic (APP/PS1) mice via inhibiting neuroinflammation mediated by the GSK-3β and NF-κB signaling pathways and nucleotide-binding domain-like receptor protein 3 inflammasome. Thus, these results suggest that PF might be useful to intervene in development or progression of neurodegeneration in AD through its anti-inflammatory and anti-amyloidogenic effects.
Collapse
Affiliation(s)
- Hong-Ri Zhang
- Department of Neurosurgery, The First Affiliated Hospital, Henan University of Science and Technology, Luoyang, 471003, Henan, China
| | | | | | | | | | | |
Collapse
|
24
|
Yun HM, Jin P, Park KR, Hwang J, Jeong HS, Kim EC, Jung JK, Oh KW, Hwang BY, Han SB, Hong JT. Thiacremonone Potentiates Anti-Oxidant Effects to Improve Memory Dysfunction in an APP/PS1 Transgenic Mice Model. Mol Neurobiol 2015; 53:2409-20. [DOI: 10.1007/s12035-015-9208-0] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2014] [Accepted: 05/03/2015] [Indexed: 01/01/2023]
|
25
|
Frühauf PKS, Ineu RP, Tomazi L, Duarte T, Mello CF, Rubin MA. Spermine reverses lipopolysaccharide-induced memory deficit in mice. J Neuroinflammation 2015; 12:3. [PMID: 25573647 PMCID: PMC4302583 DOI: 10.1186/s12974-014-0220-5] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2014] [Accepted: 12/11/2014] [Indexed: 12/16/2022] Open
Abstract
Background Lipopolysaccharide (LPS) induces neuroinflammation and memory deficit. Since polyamines improve memory in various cognitive tasks, we hypothesized that spermine administration reverses LPS-induced memory deficits in an object recognition task in mice. The involvement of the polyamine binding site at the N-methyl-D-aspartate (NMDA) receptor and cytokine production in the promnesic effect of spermine were investigated. Methods Adult male mice were injected with LPS (250 μg/kg, intraperitoneally) and spermine (0.3 to 1 mg/kg, intraperitoneally) or ifenprodil (0.3 to 10 mg/kg, intraperitoneally), or both, and their memory function was evaluated using a novel object recognition task. In addition, cortical and hippocampal cytokines levels were measured by ELISA four hours after LPS injection. Results Spermine increased but ifenprodil decreased the recognition index in the novel object recognition task. Spermine, at doses that did not alter memory (0.3 mg/kg, intraperitoneally), reversed the cognitive impairment induced by LPS. Ifenprodil (0.3 mg/kg, intraperitoneally) reversed the protective effect of spermine against LPS-induced memory deficits. However, spermine failed to reverse the LPS-induced increase of cortical and hippocampal cytokine levels. Conclusions Spermine protects against LPS-induced memory deficits in mice by a mechanism that involves GluN2B receptors.
Collapse
Affiliation(s)
- Pâmella Karina Santana Frühauf
- Graduation Program in Pharmacology, Center of Health Sciences, Federal University of Santa Maria, Santa Maria, RS, 97105-900, Brazil.
| | - Rafael Porto Ineu
- Graduation Program in Pharmacology, Center of Health Sciences, Federal University of Santa Maria, Santa Maria, RS, 97105-900, Brazil.
| | - Lediane Tomazi
- Graduation Program in Pharmacology, Center of Health Sciences, Federal University of Santa Maria, Santa Maria, RS, 97105-900, Brazil.
| | - Thiago Duarte
- Graduation Program in Pharmacology, Center of Health Sciences, Federal University of Santa Maria, Santa Maria, RS, 97105-900, Brazil.
| | - Carlos Fernando Mello
- Graduation Program in Pharmacology, Center of Health Sciences, Federal University of Santa Maria, Santa Maria, RS, 97105-900, Brazil. .,Department of Physiology and Pharmacology, Center of Health Sciences, Federal University of Santa Maria, Santa Maria, RS, 97105-900, Brazil.
| | - Maribel Antonello Rubin
- Graduation Program in Pharmacology, Center of Health Sciences, Federal University of Santa Maria, Santa Maria, RS, 97105-900, Brazil. .,Department of Biochemistry and Molecular Biology, Natural and Exact Sciences Center, Federal University of Santa Maria, Camobi, CEP: 97105900, Santa Maria, RS, Brazil.
| |
Collapse
|
26
|
Song SY, Jung YY, Hwang CJ, Lee HP, Sok CH, Kim JH, Lee SM, Seo HO, Hyun BK, Choi DY, Han SB, Ham YW, Hwang BY, Hong JT. Inhibitory effect of ent-Sauchinone on amyloidogenesis via inhibition of STAT3-mediated NF-κB activation in cultured astrocytes and microglial BV-2 cells. J Neuroinflammation 2014; 11:118. [PMID: 24985096 PMCID: PMC4090659 DOI: 10.1186/1742-2094-11-118] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2014] [Accepted: 05/12/2014] [Indexed: 12/17/2022] Open
Abstract
Background ent-Sauchinone is a polyphenolic compound found in plants belonging to the lignan family. ent-Sauchinone has been shown to modulate the expression of inflammatory factors through the nuclear factor-kappa B (NF-κB) signaling pathway. It is well known that neuroinflammation is associated with amyloidogenesis. Thus, in the present study, we investigated whether ent-Sauchinone could have anti-amyloidogenic effects through the inhibition of NF-κB pathways via its anti-inflammatory property. Methods To investigate the potential effect of ent-Sauchinone on anti-neuroinflammation and anti-amyloidogenesis in in vitro studies, we used microglial BV-2 cells and cultured astrocytes treated with ent-Sauchinone (1, 5, and 10 μM) for 24 hours. For the detection of anti-neuro-inflammatory responses, reative oxygen species (ROS) and Nitric oxide (NO) generation and inducible nitric oxide synthase (iNOS) and cyclooxygenase-2 (COX-2) expression were measured with assay kits and western blotting. β-secretase and β-secretase activities and β-amyloid levels were determined for measuring the anti-amyloidogenic effects of ent-Sauchinone by enzyme assay kits. NF-κB and STAT3 signals were detected with electromobility shift assay (EMSA) to study the related signaling pathways. The binding of ent-Sauchinone to STAT3 was evaluated by a pull-down assay and by a docking model using Autodock VINA software (Hoover’s Inc., Texas, United states). Results ent-Sauchinone (1, 5, and 10 μM) effectively decreased lipopolysaccharide (LPS)-(1 μg/ml) induced inflammatory responses through the reduction of ROS and NO generations and iNOS and COX-2 expressions in cultured astrocytes and microglial BV-2 cells. ent-Sauchinone also inhibited LPS-induced amyloidogenesis through the inhibition of β-secretase and β-secretase activity. NF- κB amyloid and STAT3, critical transcriptional factors regulating not only inflammation but also amyloidogenesis, were also inhibited in a concentration dependent manner by ent-Sauchinone by blocking the phosphorylation of I κB and STAT3 in cultured astrocytes and microglial BV-2 cells. The docking model approach showed that ent-Sauchinone binds to STAT3, and the employment of a STAT3 inhibitor and siRNA reversed ent-Sauchinone-induced inhibition NF-κB activation and Aβ generation. Conclusions These results indicated that ent-Sauchinone inhibited neuroinflammation and amyloidogenesis through the inhibition of STAT3-mediated NF-κB activity, and thus could be applied in the treatment of neuro-inflammatory diseases, including Alzheimer’s disease.
Collapse
Affiliation(s)
- Suk-Young Song
- College of Pharmacy and MRC, Chungbuk National University, 52 Naesudong-ro, Heungduk-gu, Cheongju, Chungbuk 361-763, Republic of Korea.
| | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
27
|
Yun HM, Ban JO, Park KR, Lee CK, Jeong HS, Han SB, Hong JT. Potential therapeutic effects of functionally active compounds isolated from garlic. Pharmacol Ther 2013; 142:183-95. [PMID: 24333688 DOI: 10.1016/j.pharmthera.2013.12.005] [Citation(s) in RCA: 84] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2013] [Accepted: 11/13/2013] [Indexed: 01/01/2023]
Abstract
The medicinal properties of functionally active organosulfur compounds such as allin, diallyl disulfide, S-allylmercaptocysteine, and S-trityl-L-cysteine isolated from garlic have received great attention from a large number of investigators who have studied their pharmacological effects for the treatment of various diseases. These organosulfur compounds are able to prevent for development of cancer, cardiovascular, neurological, and liver diseases as well as allergy and arthritis. There have been also many reports on toxicities and pharmacokinetics of these compounds. The aim of this study is to review a variety of experimental and clinical reports, and describe the effectiveness, toxicities and pharmacokinetics, and possible mechanisms of pharmaceutical actions of functionally active compounds isolated from garlic.
Collapse
Affiliation(s)
- Hyung-Mun Yun
- College of Pharmacy and Medical Research Center, Chungbuk National University, 48 Gaeshin-dong, Heungduk-gu, Cheongju, Chungbuk 361-763, Republic of Korea
| | - Jung Ok Ban
- College of Pharmacy and Medical Research Center, Chungbuk National University, 48 Gaeshin-dong, Heungduk-gu, Cheongju, Chungbuk 361-763, Republic of Korea
| | - Kyung-Ran Park
- College of Pharmacy and Medical Research Center, Chungbuk National University, 48 Gaeshin-dong, Heungduk-gu, Cheongju, Chungbuk 361-763, Republic of Korea
| | - Chong Kil Lee
- College of Pharmacy and Medical Research Center, Chungbuk National University, 48 Gaeshin-dong, Heungduk-gu, Cheongju, Chungbuk 361-763, Republic of Korea
| | - Heon-Sang Jeong
- Department of Food Science and Technology, Chungbuk National University, Chungbuk 361-763, Republic of Korea
| | - Sang Bae Han
- College of Pharmacy and Medical Research Center, Chungbuk National University, 48 Gaeshin-dong, Heungduk-gu, Cheongju, Chungbuk 361-763, Republic of Korea
| | - Jin Tae Hong
- College of Pharmacy and Medical Research Center, Chungbuk National University, 48 Gaeshin-dong, Heungduk-gu, Cheongju, Chungbuk 361-763, Republic of Korea.
| |
Collapse
|
28
|
Inhibitory effect of a 2,4-bis(4-hydroxyphenyl)-2-butenal diacetate on neuro-inflammatory reactions via inhibition of STAT1 and STAT3 activation in cultured astrocytes and microglial BV-2 cells. Neuropharmacology 2013; 79:476-87. [PMID: 23891616 DOI: 10.1016/j.neuropharm.2013.06.032] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2013] [Revised: 06/02/2013] [Accepted: 06/19/2013] [Indexed: 11/21/2022]
Abstract
2,4-Bis(p-hydroxyphenyl)-2-butenal (Butenal), a tyrosine-fructose Maillard reaction product has been demonstrated as an effective compound for prevention of neuroinflammatory diseases. However, this compound was vulnerable to environmental factors. Our research has been continuously made to improve druggability of Butenal and identified 2,4-bis(4-hydroxyphenyl)but-2-enal diacetate (HPBD) as an alternative. Herein, to investigate potential anti-neuroinflammatory and anti-amyloidogenic effects of HPBD, we treated HPBD (0.5, 1, and 2 μg/ml) on the lipopolysaccharides (LPS) (1 μg/ml) stimulated astrocytes and microglial BV-2 cell. HPBD inhibited LPS-induced NO and ROS production, and LPS-elevated expression of iNOS, COX2, β-site APP-cleaving enzyme 1 (BACE1), C99, and Aβ1-42 levels as well as attenuation of β-secretase activities. The activation of nuclear factor-kappaB (NF-κB), signal transducer and activator of transcription1 (STAT1), and STAT3 was concomitantly inhibited by HPBD. Moreover, siRNA targeting STAT3 abolished HPBD-induced inhibitory effects on neuro-inflammation and amyloidogenesis. In addition, pull down assay and docking model showed interaction of HPBD with STAT3. These findings suggest that HPBD may be useful and potentially therapeutic choices for the treatment of neuroinflammatory diseases.
Collapse
|
29
|
Jin P, Kim JA, Choi DY, Lee YJ, Jung HS, Hong JT. Anti-inflammatory and anti-amyloidogenic effects of a small molecule, 2,4-bis(p-hydroxyphenyl)-2-butenal in Tg2576 Alzheimer's disease mice model. J Neuroinflammation 2013; 10:2. [PMID: 23289709 PMCID: PMC3547726 DOI: 10.1186/1742-2094-10-2] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2012] [Accepted: 12/23/2012] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND Alzheimer's disease (AD) is pathologically characterized by excessive accumulation of amyloid-beta (Aβ) fibrils within the brain and activation of astrocytes and microglial cells. In this study, we examined anti-inflammatory and anti-amyloidogenic effects of 2,4-bis(p-hydroxyphenyl)-2-butenal (HPB242), an anti-inflammatory compound produced by the tyrosine-fructose Maillard reaction. METHODS 12-month-old Tg2576 mice were treated with HPB242 (5 mg/kg) for 1 month and then cognitive function was assessed by the Morris water maze test and passive avoidance test. In addition, western blot analysis, Gel electromobility shift assay, immunostaining, immunofluorescence staining, ELISA and enzyme activity assays were used to examine the degree of Aβ deposition in the brains of Tg2576 mice. The Morris water maze task was analyzed using two-way ANOVA with repeated measures. Otherwise were analyzed by one-way ANOVA followed by Dunnett's post hoc test. RESULTS Treatment of HPB242 (5 mg/kg for 1 month) significantly attenuated cognitive impairments in Tg2576 transgenic mice. HPB242 also prevented amyloidogenesis in Tg2576 transgenic mice brains. This can be evidenced by Aβ accumulation, BACE1, APP and C99 expression and β-secretase activity. In addition, HPB242 suppresses the expression of inducible nitric oxide synthase (iNOS) and cyclooxygenase-2 (COX-2) as well as activation of astrocytes and microglial cells. Furthermore, activation of nuclear factor-kappaB (NF-κB) and signal transducer and activator of transcription 1/3 (STAT1/3) in the brain was potently inhibited by HPB242. CONCLUSIONS Thus, these results suggest that HPB242 might be useful to intervene in development or progression of neurodegeneration in AD through its anti-inflammatory and anti-amyloidogenic effects.
Collapse
Affiliation(s)
- Peng Jin
- College of Pharmacy, Chungbuk National University, Cheongju, Chungbuk, Korea
| | | | | | | | | | | |
Collapse
|
30
|
Epigallocatechin-3-gallate prevents systemic inflammation-induced memory deficiency and amyloidogenesis via its anti-neuroinflammatory properties. J Nutr Biochem 2013; 24:298-310. [DOI: 10.1016/j.jnutbio.2012.06.011] [Citation(s) in RCA: 133] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2011] [Revised: 05/14/2012] [Accepted: 06/12/2012] [Indexed: 12/27/2022]
|