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Dong Q, Cui Z, Wu X, Li L, Lu F, Liu F. Natural flavonoid hesperetin blocks amyloid β-protein fibrillogenesis, depolymerizes preformed fibrils and alleviates cytotoxicity caused by amyloids. Food Funct 2024; 15:4233-4245. [PMID: 38517352 DOI: 10.1039/d3fo05566c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/23/2024]
Abstract
The aggregation of β-amyloid (Aβ) peptides to form amyloid plaques is one of the primary hallmarks for Alzheimer's disease (AD). Dietary flavonoid supplements containing hesperetin have an ability to decline the risk of developing AD, but the molecular mechanism is still unclear. In this work, hesperetin, a flavanone abundant in citrus fruits, has been proven to prevent the formation of Aβ aggregates and depolymerized preformed fibrils in a concentration-dependent fashion. Hesperetin inhibited the conformational conversion from the natural structure to a β-sheet-rich conformation. It was found that hesperetin significantly reduced the cytotoxicity and relieved oxidative stress eventuated by Aβ aggregates in a concentration-dependent manner. Additionally, the beneficial effects of hesperetin were confirmed in Caenorhabditis elegans, including the inhibition of the formation and deposition of Aβ aggregates and extension of their lifespan. Finally, the results of molecular dynamics simulations showed that hesperetin directly interacted with an Aβ42 pentamer mainly through strong non-polar and electrostatic interactions, which destroyed the structural stability of the preformed pentamer. To summarize, hesperetin exhibits great potential as a prospective dietary supplement for preventing and improving AD.
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Affiliation(s)
- Qinchen Dong
- Key Laboratory of Industrial Fermentation Microbiology, Ministry of Education, Tianjin, 300457, P. R. China
- Tianjin Key Laboratory of Industrial Microbiology, Tianjin, 300457, P. R. China
- College of Biotechnology, Tianjin University of Science and Technology, Tianjin 300457, P. R. China.
| | - Zhan Cui
- Key Laboratory of Industrial Fermentation Microbiology, Ministry of Education, Tianjin, 300457, P. R. China
- Tianjin Key Laboratory of Industrial Microbiology, Tianjin, 300457, P. R. China
- College of Biotechnology, Tianjin University of Science and Technology, Tianjin 300457, P. R. China.
| | - Xinming Wu
- Key Laboratory of Industrial Fermentation Microbiology, Ministry of Education, Tianjin, 300457, P. R. China
- Tianjin Key Laboratory of Industrial Microbiology, Tianjin, 300457, P. R. China
- College of Biotechnology, Tianjin University of Science and Technology, Tianjin 300457, P. R. China.
| | - Li Li
- College of Sciences, Tianjin University of Science and Technology, Tianjin 300457, P. R. China
| | - Fuping Lu
- Key Laboratory of Industrial Fermentation Microbiology, Ministry of Education, Tianjin, 300457, P. R. China
- Tianjin Key Laboratory of Industrial Microbiology, Tianjin, 300457, P. R. China
- College of Biotechnology, Tianjin University of Science and Technology, Tianjin 300457, P. R. China.
| | - Fufeng Liu
- Key Laboratory of Industrial Fermentation Microbiology, Ministry of Education, Tianjin, 300457, P. R. China
- Tianjin Key Laboratory of Industrial Microbiology, Tianjin, 300457, P. R. China
- College of Biotechnology, Tianjin University of Science and Technology, Tianjin 300457, P. R. China.
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Fukuyama Y, Kubo M, Harada K. Neurotrophic Natural Products. PROGRESS IN THE CHEMISTRY OF ORGANIC NATURAL PRODUCTS 2024; 123:1-473. [PMID: 38340248 DOI: 10.1007/978-3-031-42422-9_1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/12/2024]
Abstract
Neurotrophins (NGF, BDNF, NT3, NT4) can decrease cell death, induce differentiation, as well as sustain the structure and function of neurons, which make them promising therapeutic agents for the treatment of neurodegenerative disorders. However, neurotrophins have not been very effective in clinical trials mostly because they cannot pass through the blood-brain barrier owing to being high-molecular-weight proteins. Thus, neurotrophin-mimic small molecules, which stimulate the synthesis of endogenous neurotrophins or enhance neurotrophic actions, may serve as promising alternatives to neurotrophins. Small-molecular-weight natural products, which have been used in dietary functional foods or in traditional medicines over the course of human history, have a great potential for the development of new therapeutic agents against neurodegenerative diseases such as Alzheimer's disease. In this contribution, a variety of natural products possessing neurotrophic properties such as neurogenesis, neurite outgrowth promotion (neuritogenesis), and neuroprotection are described, and a focus is made on the chemistry and biology of several neurotrophic natural products.
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Affiliation(s)
- Yoshiyasu Fukuyama
- Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Tokushima, 770-8514, Japan.
| | - Miwa Kubo
- Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Tokushima, 770-8514, Japan
| | - Kenichi Harada
- Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Tokushima, 770-8514, Japan
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Zhou Y, Luo D, Shi J, Yang X, Xu W, Gao W, Guo Y, Zhao Q, Xie X, He Y, Du G, Pang X. Loganin alleviated cognitive impairment in 3×Tg-AD mice through promoting mitophagy mediated by optineurin. JOURNAL OF ETHNOPHARMACOLOGY 2023; 312:116455. [PMID: 37019163 DOI: 10.1016/j.jep.2023.116455] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Revised: 03/21/2023] [Accepted: 04/01/2023] [Indexed: 05/08/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Corni Fructus is a traditional Chinese herb and widely applied for treatment of age-related disorders in China. Iridoid glycoside was considered as the active ingredient of Corni Fructus. Loganin is one of the major iridoid glycosides and quality control components of Corni Fructus. Emerging evidence emphasized the beneficial effect of loganin on neurodegenerative disorders, such as Alzheimer's disease (AD). However, the detailed mechanism underlying the neuroprotective action of loganin remains to be unraveled. AIM OF THE STUDY To explore the improvement of loganin on cognitive impairment in 3 × Tg-AD mice and reveal the potential mechanism. MATERIALS AND METHODS Eight-month 3 × Tg-AD male mice were intraperitoneally injected with loganin (20 and 40 mg/kg) for consecutive 21 days. Behavioral tests were used to evaluated the cognition-enhancing effects of loganin, and Nissl staining and thioflavine S staining were performed to analyze neuronal survival and Aβ pathology. Western blot analysis, transmission electron microscopy and immunofluorescence were utilized to explore the molecular mechanism of loganin in AD mice involved mitochondrial dynamics and mitophagy. Aβ25-35-induced SH-SY5Y cells were applied to verify the potential mechanism in vitro. RESULTS Loganin significantly mitigated the learning and memory deficit and amyloid β-protein (Aβ) deposition, and recovered synaptic ultrastructure in 3 × Tg-AD mice. Perturbed mitochondrial dynamics characterized by excessive fission and insufficient fusion were restored after loganin treatment. Meanwhile, loganin reversed the increase of mitophagy markers (LC3II, p62, PINK1 and Parkin) and mitochondrial markers (TOM20 and COXIV) in hippocampus of AD mice, and enhanced the location of optineurin (OPTN, a well-known mitophagy receptor) to mitochondria. Accumulated PINK1, Parkin, p62 and LC3II were also revealed in Aβ25-35-induced SH-SY5Y cells, which were ameliorated by loganin. Increased OPTN in Aβ25-35-treated SH-SY5Y cells was further upregulated by loganin incubation, along with the reduction of mitochondrial ROSand elevation ofmitochondrial membrane potential (MMP). Conversely, OPTN silence neutralized the effect of loganin on mitophagy and mitochondrial function, which is consistent with the finding that loganin presented strong affinity with OPTN measured by molecular docking in silico. CONCLUSIONS Our observations confirmed that loganin enhanced cognitive function and alleviated AD pathology probably by promoting OPTN-mediated mitophagy,. Loganin might be a potential drug candidate for AD therapy via targeting mitophagy.
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Affiliation(s)
- Yunfeng Zhou
- School of Pharmacy, Henan University, Kaifeng, 475004, China; Henan Province Engineering Research Center of High Value Utilization to Natural Medical Resource in Yellow River Basin, School of Pharmacy, Henan University, Kaifeng, 475004, China.
| | - Dongmei Luo
- School of Pharmacy, Henan University, Kaifeng, 475004, China.
| | - Junzhuo Shi
- School of Pharmacy, Henan University, Kaifeng, 475004, China.
| | - Xiaojia Yang
- School of Pharmacy, Henan University, Kaifeng, 475004, China.
| | - Wangjun Xu
- School of Pharmacy, Henan University, Kaifeng, 475004, China.
| | - Weiping Gao
- School of Pharmacy, Henan University, Kaifeng, 475004, China.
| | - Yukun Guo
- School of Pharmacy, Henan University, Kaifeng, 475004, China.
| | - Qian Zhao
- School of Pharmacy, Henan University, Kaifeng, 475004, China.
| | - Xinmei Xie
- School of Pharmacy, Henan University, Kaifeng, 475004, China; Henan Province Engineering Research Center of High Value Utilization to Natural Medical Resource in Yellow River Basin, School of Pharmacy, Henan University, Kaifeng, 475004, China.
| | - Yangyang He
- School of Pharmacy, Henan University, Kaifeng, 475004, China; Institutes of Traditional Chinese Medicine, Henan University, Kaifeng, 475004, China.
| | - Guanhua Du
- School of Pharmacy, Henan University, Kaifeng, 475004, China; State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, 100050, China.
| | - Xiaobin Pang
- School of Pharmacy, Henan University, Kaifeng, 475004, China; Institutes of Traditional Chinese Medicine, Henan University, Kaifeng, 475004, China; Henan Province Engineering Research Center of High Value Utilization to Natural Medical Resource in Yellow River Basin, School of Pharmacy, Henan University, Kaifeng, 475004, China.
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Wang L, Meng X, Zhou H, Liu Y, Zhang Y, Liang H, Hou G, Kang W, Liu Z. Iridoids and active ones in patrinia: A review. Heliyon 2023; 9:e16518. [PMID: 37292326 PMCID: PMC10245019 DOI: 10.1016/j.heliyon.2023.e16518] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Revised: 04/27/2023] [Accepted: 05/19/2023] [Indexed: 06/10/2023] Open
Abstract
Iridoid is a special class of monoterpenoids, whose basic skeleton is the acetal derivative of antinodilaldehyde with a bicyclic H-5/H-9β, β-cisfused cyclopentan pyran ring. They were often existed in Valerianaceae, Rubiaceae, Scrophulariaceae and Labiaceae family, and has various biological activities, such as anti-inflammatory, hypoglycemic, neuroprotection, and soon. In this review, iridoids from Patrinia (Valerianaceae family), and the active ones as well as their mechanisms in recent 20 years were summarized. Up to now, a total of 115 iridoids had been identified in Patrinia, among which 48 had extensive biological activities mainly presented in anti-inflammatory, anti-tumor and neuroprotective. And the mechanisms involved in MAPK, NF-κB and JNK signal pathways. The summary for iridoids and their activities will provide the evidence to exploit the iridoids in Patrinia.
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Affiliation(s)
- Li Wang
- National R & D Center for Edible Fungus Processing Technology, Henan University, Kaifeng 475004, China
- Functional Food Engineering Technology Research Center, Henan, Kaifeng, 475004, China
| | - Xinjing Meng
- National R & D Center for Edible Fungus Processing Technology, Henan University, Kaifeng 475004, China
- Functional Food Engineering Technology Research Center, Henan, Kaifeng, 475004, China
| | - Huihui Zhou
- National R & D Center for Edible Fungus Processing Technology, Henan University, Kaifeng 475004, China
- Joint International Research Laboratory of Food & Medicine Resource Function, Henan Province, Kaifeng 475004, China
| | - Yuhang Liu
- National R & D Center for Edible Fungus Processing Technology, Henan University, Kaifeng 475004, China
- Joint International Research Laboratory of Food & Medicine Resource Function, Henan Province, Kaifeng 475004, China
| | - Yadan Zhang
- National R & D Center for Edible Fungus Processing Technology, Henan University, Kaifeng 475004, China
- Joint International Research Laboratory of Food & Medicine Resource Function, Henan Province, Kaifeng 475004, China
| | - Haiyang Liang
- National R & D Center for Edible Fungus Processing Technology, Henan University, Kaifeng 475004, China
- Joint International Research Laboratory of Food & Medicine Resource Function, Henan Province, Kaifeng 475004, China
| | - Gaixia Hou
- National R & D Center for Edible Fungus Processing Technology, Henan University, Kaifeng 475004, China
- College of Physical Education, Henan University, Henan, Kaifeng, 475004, China
| | - Wenyi Kang
- National R & D Center for Edible Fungus Processing Technology, Henan University, Kaifeng 475004, China
- Joint International Research Laboratory of Food & Medicine Resource Function, Henan Province, Kaifeng 475004, China
- Shenzhen Research Institute of Henan University, Shenzhen, 518000, China
| | - Zhenhua Liu
- National R & D Center for Edible Fungus Processing Technology, Henan University, Kaifeng 475004, China
- Joint International Research Laboratory of Food & Medicine Resource Function, Henan Province, Kaifeng 475004, China
- Shenzhen Research Institute of Henan University, Shenzhen, 518000, China
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Huo K, Xu J, Ma K, Wang J, Wei M, Zhang M, Guo Q, Qu Q. Loganin attenuates neuroinflammation after ischemic stroke and fracture by regulating α7nAChR-mediated microglial polarization. ENVIRONMENTAL TOXICOLOGY 2023; 38:926-940. [PMID: 36637150 DOI: 10.1002/tox.23738] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2022] [Revised: 12/26/2022] [Accepted: 12/27/2022] [Indexed: 06/17/2023]
Abstract
Fracture in acute stage of ischemic stroke can increase inflammatory response and enhance stroke injury. Loganin alleviates the symptoms of many inflammatory diseases through its anti-inflammatory effect, but its role in ischemic stroke and fracture remains to be explored. Here, mice were handled with permanent middle cerebral artery occlusion (pMCAO) followed by tibial fracture 1 day later to establish a pMCAO+fracture model. Loganin or Methyllycaconitine (MLA, a specific a7nAchR inhibitor) were intragastrically administered 2 or 0.5 h before pMCAO, respectively. And mouse motor function and infarct volume were evaluated 3 days after pMCAO. We found that loganin alleviated the neurological deficit, cerebral infarction volume, and neuronal apoptosis (NeuN+ TUNEL+ ) in mice with pMCAO+fracture. And loganin suppressed pMCAO+fracture-induced neuroinflammation by promoting M2 microglia polarization (Iba1+ CD206+ ) and inhibiting M1 microglia polarization (Iba1+ CD11b+ ). While administration with MLA reversed the protective effect of loganin on pMCAO+fracture-induced neurological deficit and neuroinflammation. Next, LPS was used to stimulate BV2 microglia to simulate pMCAO+fracture-induced inflammatory microenvironment in vitro. Loganin facilitated the transformation of LPS-stimulated BV2 cells from M1 pro-inflammatory state (CD11b+ ) to M2 anti-inflammatory state (CD206+ ), which was antagonized by treatment with MLA. And loganin induced autophagy activation in LPS-stimulated BV2 cells by activating a7nAchR. Moreover, treatment with rapamycin (an autophagy activator) neutralized the inhibitory effect of MLA on loganin induced transformation of BV2 cells to M2 phenotype. Furthermore, BV2 cells were treated with LPS, LPS + loganin, LPS + loganin+MLA, or LPS + loganin+MLA+ rapamycin to obtain conditioned medium (CM) for stimulating primary neurons. Loganin reduced the damage of primary neurons caused by LPS-stimulated BV2 microglia through activating a7nAchR and inducing autophagy activation. In conclusion, loganin played anti-inflammatory and neuroprotective roles in pMCAO + fracture mice by activating a7nAchR, enhancing autophagy and promoting M2 polarization of microglia.
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Affiliation(s)
- Kang Huo
- Department of Neurology, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi Province, People's Republic of China
- Center of brain health, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi Province, People's Republic of China
| | - Jing Xu
- Department of Emergency, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi Province, People's Republic of China
| | - Kaige Ma
- Department of Neurobiology, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi Province, People's Republic of China
| | - Jianyi Wang
- Department of Neurology, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi Province, People's Republic of China
| | - Meng Wei
- Department of Neurology, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi Province, People's Republic of China
| | - Meng Zhang
- Department of Neurology, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi Province, People's Republic of China
| | - Qinyue Guo
- Department of Critical Care Medicine, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi Province, People's Republic of China
| | - Qiumin Qu
- Department of Neurology, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi Province, People's Republic of China
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Activation of Nrf2/HO-1 antioxidant signaling correlates with the preventive effect of loganin on oxidative injury in ARPE-19 human retinal pigment epithelial cells. Genes Genomics 2023; 45:271-284. [PMID: 36018494 DOI: 10.1007/s13258-022-01302-4] [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: 04/28/2022] [Accepted: 08/03/2022] [Indexed: 11/04/2022]
Abstract
BACKGROUND Loganin, a type of iridoid glycoside derived from Corni Fructus, is known to have beneficial effects various chronic diseases. However, studies on mechanisms related to antioxidant efficacy in human retinal pigment epithelial (RPE) cells have not yet been conducted. OBJECTIVES This study was to investigate whether loganin could inhibit oxidative stress-mediated cellular damage caused by hydrogen peroxide (H2O2) in human RPE ARPE-19 cells. METHODS The preventive effect of loganin on H2O2-induced cytotoxicity, reactive oxygen species (ROS) generation, DNA damage and apoptosis was investigated. In addition, immunofluorescence staining and immunoblotting analysis were applied to evaluate the related mechanisms. RESULTS The loss of cell viability and increased ROS accumulation in H2O2-treated ARPE-19 cells were significantly abrogated by loganin pretreatment, which was associated with activation of nuclear factor erythroid 2-related factor 2 (Nrf2) and increased expression of heme oxygenase-1 (HO-1). Loganin also markedly attenuated H2O2-induced DNA damage, ultimately ameliorating apoptosis. In addition, H2O2-induced mitochondrial dysfunction was reversed in the presence of loganin as indicated by preservation of mitochondrial integrity, decrease of Bax/Bcl-2 expression ratio, reduction of caspase-3 activity and suppression of cytochrome c release into the cytoplasm. However, zinc protoporphyrin, a selective inhibitor of HO-1, remarkably alleviated the preventive effect offered by loganin against H2O2-mediated ARPE-19 cell injury, suggesting a critical role of Nrf2-mediated activation of HO-1 in the antioxidant activity of loganin. CONCLUSION The results of this study suggest that loganin-induced activation of the Nrf2/HO-1 axis is at least involved in protecting at least ARPE-19 cells from oxidative injury.
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Cheng KI, Chang YC, Chu LW, Hsieh SL, An LM, Dai ZK, Wu BN. The Iridoid Glycoside Loganin Modulates Autophagic Flux Following Chronic Constriction Injury-Induced Neuropathic Pain. Int J Mol Sci 2022; 23:ijms232415873. [PMID: 36555516 PMCID: PMC9786894 DOI: 10.3390/ijms232415873] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2022] [Revised: 11/28/2022] [Accepted: 12/11/2022] [Indexed: 12/15/2022] Open
Abstract
Autophagy facilitates the degradation of organelles and cytoplasmic proteins in a lysosome-dependent manner. It also plays a crucial role in cell damage. Whether loganin affects autophagy in chronic constriction injury (CCI)-induced neuropathic pain remains unclear. We investigated the neuroprotective effect of loganin on the autophagic-lysosomal pathway in the rat CCI model. Sprague-Dawley rats were divided into sham, CCI, sham + loganin, and CCI + loganin. Loganin (5 mg/kg/day) was intraperitoneally injected once daily, and rats were sacrificed on day 7 after CCI. This study focused on the mechanism by which loganin modulates autophagic flux after CCI. CCI enhanced the autophagic marker LC3B-II in the ipsilateral spinal cord. The ubiquitin-binding protein p62 binds to LC3B-II and integrates into autophagosomes, which are degraded by autophagy. CCI caused the accumulation of p62, indicating the interruption of autophagosome turnover. Loganin significantly attenuated the expression of Beclin-1, LC3B-II, and p62. Double immunofluorescence staining was used to confirm that LC3B-II and p62 were reduced by loganin in the spinal microglia and astrocytes. Loganin also lessened the CCI-increased colocalization of both proteins. Enhanced lysosome-associated membrane protein 2 (LAMP2) and pro-cathepsin D (pro-CTSD) in CCI rats were also attenuated by loganin, suggesting that loganin improves impaired lysosomal function and autophagic flux. Loganin also attenuated the CCI-increased apoptosis protein Bax and cleaved caspase-3. Loganin prevents CCI-induced neuropathic pain, which could be attributed to the regulation of neuroinflammation, neuronal autophagy, and associated cell death. These data suggest autophagy could be a potential target for preventing neuropathic pain.
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Affiliation(s)
- Kuang-I Cheng
- Department of Anesthesiology, School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
- Department of Anesthesiology, Kaohsiung Medical University Hospital, Kaohsiung 80708, Taiwan
| | - Yu-Chin Chang
- Department of Pharmacology, Graduate Institute of Medicine, College of Medicine, Drug Development and Value Creation Research Center, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
| | - Li-Wen Chu
- Department of Cosmetic Application and Management, Department of Nursing, Yuh-Ing Junior College of Health Care and Management, Kaohsiung 80776, Taiwan
| | - Su-Ling Hsieh
- Department of Pharmacy, Kaohsiung Medical University Hospital, Kaohsiung 80708, Taiwan
| | - Li-Mei An
- Department of Pharmacology, Graduate Institute of Medicine, College of Medicine, Drug Development and Value Creation Research Center, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
| | - Zen-Kong Dai
- Department of Pediatrics, School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
- Department of Pediatrics, Division of Pediatric Cardiology and Pulmonology, Kaohsiung Medical University Hospital, Kaohsiung 80708, Taiwan
- Correspondence: (Z.-K.D.); (B.-N.W.); Fax: +886-7-3208316 (Z.-K.D.); +886-7-3234686 (B.-N.W.)
| | - Bin-Nan Wu
- Department of Pharmacology, Graduate Institute of Medicine, College of Medicine, Drug Development and Value Creation Research Center, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
- Department of Medical Research, Kaohsiung Medical University Hospital, Kaohsiung 80708, Taiwan
- Correspondence: (Z.-K.D.); (B.-N.W.); Fax: +886-7-3208316 (Z.-K.D.); +886-7-3234686 (B.-N.W.)
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Wan H, Li C, Yang Y, Chen D. Loganin attenuates interleukin-1 β-induced chondrocyte inflammation, cartilage degeneration, and rat synovial inflammation by regulating TLR4/MyD88/NF-κB. J Int Med Res 2022; 50:3000605221104764. [PMID: 36000146 PMCID: PMC9421229 DOI: 10.1177/03000605221104764] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Objective Inflammation plays a crucial part in osteoarthritis (OA) development. This
work aimed to explore loganin’s role and molecular mechanism in inflammation
and clarify its anti-inflammatory effects in OA treatment. Methods Chondrocytes were stimulated using interleukin (IL)-1β and loganin at two
concentrations (1 μM and 10 μM). Nitric oxide (NO) and prostaglandin E2
(PGE2) expression was assessed. Real-time polymerase chain reaction was used
to evaluate inducible NO synthase (iNOS), cyclooxygenase (COX)-2, IL-6, and
tumor necrosis factor (TNF)-α mRNA levels. Western blot was used to
investigate TLR4, MyD88, p-p65, and IκB-α expression. p65 nuclear
translocation, synovial inflammatory response, and cartilage degeneration
were also assessed. Results Loganin significantly reduced IL-1β-mediated PGE2, NO, iNOS, and COX-2
expression compared with that of the IL-1β stimulation group. The
TLR4/MyD88/NF-κB pathway was suppressed by loganin, which decreased
inflammatory cytokine (TNF-α and IL-6) levels compared with those of the
IL-1β stimulation group. Loganin inhibited IL-1β-mediated NF-κB p65 nuclear
translocation compared with that of the IL-1β stimulation group. Loganin
partially suppressed cartilage degeneration and the synovial inflammatory
response in vivo. Conclusion This work demonstrated that loganin inhibited IL-1β-mediated inflammation in
rat chondrocytes through TLR4/MyD88/NF-κB pathway regulation, thereby
reducing rat cartilage degeneration and the synovial inflammatory
response.
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Affiliation(s)
- Haishan Wan
- Emergency Trauma Department, The Second Affiliated Hospital of Hainan Medical University, Haikou, Hainan Province, China
| | - Chaoyi Li
- Department of Joint Surgery, The Second Affiliated Hospital of Hainan Medical University, Haikou, Hainan Province, China
| | - Yi Yang
- Department of Spinal Surgery, The Second Affiliated Hospital of Hainan Medical University, Haikou, Hainan Province, China
| | - Dingzhong Chen
- Department of Spinal Surgery, The Second Affiliated Hospital of Hainan Medical University, Haikou, Hainan Province, China
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Park C, Lee H, Jin S, Park JH, Han MH, Jeong JW, Kwon HJ, Kim BW, Park SH, Hong SH, Kim GY, Choi YH. The preventive effect of loganin on oxidative stress-induced cellular damage in human keratinocyte HaCaT cells. Biosci Trends 2022; 16:291-300. [PMID: 35691912 DOI: 10.5582/bst.2022.01116] [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: 11/05/2022]
Abstract
Loganin is a type of iridoid glycosides isolated from Corni fructus and is known to have various pharmacological properties, but studies on its antioxidant activity are still lacking. Therefore, in this study, the preventive effect of loganin on oxidative stress-mediated cellular damage in human keratinocyte HaCaT cells was investigated. Our results show that loganin pretreatment in a non-toxic concentration range significantly improved cell survival in hydrogen peroxide (H2O2)-treated HaCaT cells, which was associated with inhibition of cell cycle arrest at the G2/M phase and induction of apoptosis. H2O2-induced DNA damage and reactive oxygen species (ROS) generation were also greatly reduced in the presence of loganin. Moreover, H2O2 treatment enhanced the cytoplasmic release of cytochrome c, upregulation of the Bax/Bcl-2 ratio and degradation of cleavage of poly (ADP-ribose) polymerase, whereas loganin remarkably suppressed these changes. In addition, loganin obviously attenuated H2O2-induced autophagy while inhibiting the increased accumulation of autophagosome proteins, including as microtubule-associated protein 1 light chain 3-II and Beclin-1, and p62, an autophagy substrate protein, in H2O2-treated cells. In conclusion, our current results suggests that loganin could protect HaCaT keratinocytes from H2O2-induced cellular injury by inhibiting mitochondrial dysfunction, autophagy and apoptosis. This finding indicates the applicability of loganin in the prevention and treatment of skin diseases caused by oxidative damage.
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Affiliation(s)
- Cheol Park
- Division of Basic Sciences, College of Liberal Studies, Dong-eui University, Busan, Korea
| | - Hyesook Lee
- Department of Convergence Medicine, Pusan National University School of Medicine, Yangsan, Korea
| | - Soojung Jin
- Core-Facility Center for Tissue Regeneration, Dong-eui University, Busan, Korea
| | - Jung-Ha Park
- Core-Facility Center for Tissue Regeneration, Dong-eui University, Busan, Korea.,Biopharmaceutical Engineering Major, Division of Applied Bioengineering, College of Engineering, Dong-eui University, Busan, Korea
| | - Min Ho Han
- National Marine Biodiversity Institute of Korea, Seocheon, Korea
| | - Jin-Woo Jeong
- Nakdonggang National Institute of Biological Resources, Sangju, Korea
| | - Hyun Ju Kwon
- Core-Facility Center for Tissue Regeneration, Dong-eui University, Busan, Korea.,Biopharmaceutical Engineering Major, Division of Applied Bioengineering, College of Engineering, Dong-eui University, Busan, Korea
| | - Byung Woo Kim
- Core-Facility Center for Tissue Regeneration, Dong-eui University, Busan, Korea.,Biopharmaceutical Engineering Major, Division of Applied Bioengineering, College of Engineering, Dong-eui University, Busan, Korea
| | - Shin-Hyung Park
- Department of Pathology, Dong-eui University College of Korean Medicine, Busan, Korea
| | - Su Hyun Hong
- Anti-Aging Research Center, Dong-eui University, Busan, Korea.,Department of Biochemistry, Dong-eui University College of Korean Medicine, Busan, Korea
| | - Gi-Young Kim
- Department of Marine Life Science, Jeju National University, Jeju, Korea
| | - Yung Hyun Choi
- Core-Facility Center for Tissue Regeneration, Dong-eui University, Busan, Korea.,Anti-Aging Research Center, Dong-eui University, Busan, Korea.,Department of Biochemistry, Dong-eui University College of Korean Medicine, Busan, Korea
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10
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Zhang F, Yan Y, Zhang J, Li L, Wang YW, Xia CY, Lian WW, Peng Y, Zheng J, He J, Xu JK, Zhang WK. Phytochemistry, synthesis, analytical methods, pharmacological activity, and pharmacokinetics of loganin: A comprehensive review. Phytother Res 2022; 36:2272-2299. [PMID: 35583806 DOI: 10.1002/ptr.7347] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Revised: 11/13/2021] [Accepted: 11/21/2021] [Indexed: 10/18/2022]
Abstract
Iridoid glycosides (IGs) are found in many medicinal and edible plants, such as Gardenia jasminoides, Cistanche tubulosa, Eucommia ulmoides, Rehmanniae Radix, Lonicera japonica, and Cornus officinalis. Loganin, an IG, is one of the main active ingredient of Cornus officinalis Sieb. et Zucc., which approved as a medicinal and edible plant in China. Loganin has been widely concerned due to its extensive pharmacological effects, including anti-diabetic, antiinflammatory, neuroprotective, and anti-tumor activities, etc. Studies have shown that these underlying mechanisms include anti-oxidation, antiinflammation and anti-apoptosis by regulating a variety of signaling pathways, such as STAT3/NF-κB, JAK/STAT3, TLR4/NF-κB, PI3K/Akt, MCP-1/CCR2, and RAGE/Nox4/p65 NF-κB signaling pathways. In order to better understand the research status of loganin and promote its application in human health, this paper systematically summarized the phytochemistry, analysis methods, synthesis, pharmacological properties and related mechanisms, and pharmacokinetics based on the research in the past decades.
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Affiliation(s)
- Fan Zhang
- Department of Pharmacy & Institute of Clinical Medical Sciences, China-Japan Friendship Hospital, Beijing, People's Republic of China.,Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, People's Republic of China
| | - Yu Yan
- Department of Pharmacy & Institute of Clinical Medical Sciences, China-Japan Friendship Hospital, Beijing, People's Republic of China
| | - Jia Zhang
- School of Life Sciences & School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, People's Republic of China
| | - Li Li
- Key Laboratory of Cosmetic, China National Light Industry, Beijing Technology and Business University, Beijing, People's Republic of China
| | - Yu-Wei Wang
- School of Life Sciences & School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, People's Republic of China
| | - Cong-Yuan Xia
- Department of Pharmacy & Institute of Clinical Medical Sciences, China-Japan Friendship Hospital, Beijing, People's Republic of China
| | - Wen-Wen Lian
- Department of Pharmacy & Institute of Clinical Medical Sciences, China-Japan Friendship Hospital, Beijing, People's Republic of China
| | - Ying Peng
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, People's Republic of China
| | - Jiang Zheng
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, People's Republic of China.,State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Provincial Key Laboratory of Pharmaceutics, Guizhou Medical University, Guiyang, People's Republic of China
| | - Jun He
- Department of Pharmacy & Institute of Clinical Medical Sciences, China-Japan Friendship Hospital, Beijing, People's Republic of China
| | - Jie-Kun Xu
- School of Life Sciences & School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, People's Republic of China
| | - Wei-Ku Zhang
- Department of Pharmacy & Institute of Clinical Medical Sciences, China-Japan Friendship Hospital, Beijing, People's Republic of China
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11
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Nie L, He K, Xie F, Xiao S, Li S, Xu J, Zhang K, Yang C, Zhou L, Liu J, Zou L, Yang X. Loganin substantially ameliorates molecular deficits, pathologies and cognitive impairment in a mouse model of Alzheimer's disease. Aging (Albany NY) 2021; 13:23739-23756. [PMID: 34689137 PMCID: PMC8580356 DOI: 10.18632/aging.203646] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2021] [Accepted: 06/14/2021] [Indexed: 11/25/2022]
Abstract
Alzheimer’s disease (AD) is the most common age-related neurodegenerative disease threatening the health of the elderly, but the available therapeutic and preventive drugs remain suboptimal. Loganin, an iridoid glycoside extracted from Cornus officinalis, is reported to have anti-inflammatory and memory-enhancing properties. This study is aimed to explore the influence of loganin on cognitive function in 3xTg-AD mice and the underlying mechanism associated with its neuroprotection. According to the results of behavioral tests, we found that administration of loganin could significantly alleviate anxiety behavior and improve memory deficits of 3xTg-AD mice. Furthermore, immunohistochemical analysis displayed that there were decreased Aβ deposition in the hippocampus and cortex of 3xTg-AD mice treated with loganin compared with the control mice. Importantly, the Aβ-related pathological change was mainly involved in altering APP expression and processing. And loganin was also found to reduce the levels of phosphorylated tau (i.e. pTauS396 and pTauS262) in 3xTg-AD mice. By performing 2D-DIGE combined with MALDI-TOF-MS/MS, we revealed 28 differentially expressed proteins in the 3xTg-AD mice treated with loganin compared with the control mice. Notably, 10 proteins largely involved in energy metabolism, synaptic proteins, inflammatory response, and ATP binding were simultaneously detected in 3xTg-AD mice compared to WT mice. The abnormal changes of energy metabolism (PAGM1 and ENO1), synaptic proteins (SYN2 and Cplx2), inflammatory response (1433Z) were verified by western blot. Overall, our study suggested that loganin could be used as a feasible candidate drug to ameliorate molecular deficits, pathologies and cognitive impairment for prevention and treatment of AD.
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Affiliation(s)
- Lulin Nie
- Shenzhen Key Laboratory of Modern Toxicology, Shenzhen Medical Key Discipline of Health Toxicology (2020-2024), Shenzhen Center for Disease Control and Prevention, Shenzhen 518055, China
| | - Kaiwu He
- Shenzhen Key Laboratory of Modern Toxicology, Shenzhen Medical Key Discipline of Health Toxicology (2020-2024), Shenzhen Center for Disease Control and Prevention, Shenzhen 518055, China.,School of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School, Shenzhen 518055, China
| | - Fengzhu Xie
- Shenzhen Center for Chronic Disease Control and Prevention, Shenzhen 518020, China
| | - Shifeng Xiao
- Shenzhen Key Laboratory of Marine Biotechnology and Ecology, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen 518060, China
| | - Shupeng Li
- School of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School, Shenzhen 518055, China
| | - Jia Xu
- Shenzhen Key Laboratory of Modern Toxicology, Shenzhen Medical Key Discipline of Health Toxicology (2020-2024), Shenzhen Center for Disease Control and Prevention, Shenzhen 518055, China.,Department of Pathophysiology, Guangzhou Medical University, Guangzhou 510182, China
| | - Kaiqin Zhang
- Shenzhen Key Laboratory of Modern Toxicology, Shenzhen Medical Key Discipline of Health Toxicology (2020-2024), Shenzhen Center for Disease Control and Prevention, Shenzhen 518055, China.,College of Public Health, University of South China, Hengyang 421001, China
| | - Chen Yang
- Shenzhen Key Laboratory of Modern Toxicology, Shenzhen Medical Key Discipline of Health Toxicology (2020-2024), Shenzhen Center for Disease Control and Prevention, Shenzhen 518055, China
| | - Li Zhou
- Shenzhen Key Laboratory of Modern Toxicology, Shenzhen Medical Key Discipline of Health Toxicology (2020-2024), Shenzhen Center for Disease Control and Prevention, Shenzhen 518055, China
| | - Jianjun Liu
- Shenzhen Key Laboratory of Modern Toxicology, Shenzhen Medical Key Discipline of Health Toxicology (2020-2024), Shenzhen Center for Disease Control and Prevention, Shenzhen 518055, China
| | - Liangyu Zou
- Department of Neurology, Shenzhen People's Hospital, Second Clinical College, Jinan University, Shenzhen 518020, China
| | - Xifei Yang
- Shenzhen Key Laboratory of Modern Toxicology, Shenzhen Medical Key Discipline of Health Toxicology (2020-2024), Shenzhen Center for Disease Control and Prevention, Shenzhen 518055, China
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12
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Han B, Sun H, Yang X, Wang T, He C, Zhao K, An S, Guo C, Niu D, Xue X, Kang J. Ultrasound-assisted enzymatic extraction of Corni Fructus alpha-glucosidase inhibitors improves insulin resistance in HepG2 cells. Food Funct 2021; 12:9808-9819. [PMID: 34664576 DOI: 10.1039/d1fo01002f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Corni Fructus (CF) is a traditional medicine and beneficial food with multifaceted protective effects against diabetes and its complications. Since alpha-glucosidase inhibitors (GIs) are promising first-choice oral antihyperglycemic drugs for diabetes, we examined whether GIs from CF (GICF) are useful for diabetes treatment. Therefore, GICF was extracted by ultrasound-assisted enzymatic extraction (UAEE) that is optimized by a three-level, four-factor Box-Behnken design and determined by ultra-performance liquid chromatography. Compared to 36.31 mg g-1 without enzyme treatment, the GICF yield increased to 70.44 mg g-1via UAEE under optimum conditions (0.5% compound enzyme extracted in 23 min at 46 °C and pH 4.8). The activity (91.99%) of GICF was as predicted (93.28%). When GICF was used in an insulin-resistant HepG2 cell model, it significantly ameliorated the glucose metabolism in a dose-dependent manner. Our findings indicate that UAEE may be an innovative method for functional food extraction and a potential strategy for high-quality food ingredient (such as GI) production with high efficiency and productivity.
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Affiliation(s)
- Binkai Han
- National Engineering Laboratory for Resource Development of Endangered Crude Drugs in Northwest China, The Key Laboratory of Medicinal Resources and Natural Pharmaceutical Chemistry, The Ministry of Education, College of Life Sciences, Shaanxi Normal University, Xi'an, Shaanxi 710119, The People's Republic of China.
| | - Haoqiang Sun
- National Engineering Laboratory for Resource Development of Endangered Crude Drugs in Northwest China, The Key Laboratory of Medicinal Resources and Natural Pharmaceutical Chemistry, The Ministry of Education, College of Life Sciences, Shaanxi Normal University, Xi'an, Shaanxi 710119, The People's Republic of China.
| | - Xiaolin Yang
- National Engineering Laboratory for Resource Development of Endangered Crude Drugs in Northwest China, The Key Laboratory of Medicinal Resources and Natural Pharmaceutical Chemistry, The Ministry of Education, College of Life Sciences, Shaanxi Normal University, Xi'an, Shaanxi 710119, The People's Republic of China.
| | - Ting Wang
- National Engineering Laboratory for Resource Development of Endangered Crude Drugs in Northwest China, The Key Laboratory of Medicinal Resources and Natural Pharmaceutical Chemistry, The Ministry of Education, College of Life Sciences, Shaanxi Normal University, Xi'an, Shaanxi 710119, The People's Republic of China.
| | - Changfen He
- National Engineering Laboratory for Resource Development of Endangered Crude Drugs in Northwest China, The Key Laboratory of Medicinal Resources and Natural Pharmaceutical Chemistry, The Ministry of Education, College of Life Sciences, Shaanxi Normal University, Xi'an, Shaanxi 710119, The People's Republic of China.
| | - Ke Zhao
- National Engineering Laboratory for Resource Development of Endangered Crude Drugs in Northwest China, The Key Laboratory of Medicinal Resources and Natural Pharmaceutical Chemistry, The Ministry of Education, College of Life Sciences, Shaanxi Normal University, Xi'an, Shaanxi 710119, The People's Republic of China.
| | - Shujing An
- National Engineering Laboratory for Resource Development of Endangered Crude Drugs in Northwest China, The Key Laboratory of Medicinal Resources and Natural Pharmaceutical Chemistry, The Ministry of Education, College of Life Sciences, Shaanxi Normal University, Xi'an, Shaanxi 710119, The People's Republic of China.
| | - Chen Guo
- National Engineering Laboratory for Resource Development of Endangered Crude Drugs in Northwest China, The Key Laboratory of Medicinal Resources and Natural Pharmaceutical Chemistry, The Ministry of Education, College of Life Sciences, Shaanxi Normal University, Xi'an, Shaanxi 710119, The People's Republic of China.
| | - Dou Niu
- National Engineering Laboratory for Resource Development of Endangered Crude Drugs in Northwest China, The Key Laboratory of Medicinal Resources and Natural Pharmaceutical Chemistry, The Ministry of Education, College of Life Sciences, Shaanxi Normal University, Xi'an, Shaanxi 710119, The People's Republic of China.
| | - Xiaochang Xue
- National Engineering Laboratory for Resource Development of Endangered Crude Drugs in Northwest China, The Key Laboratory of Medicinal Resources and Natural Pharmaceutical Chemistry, The Ministry of Education, College of Life Sciences, Shaanxi Normal University, Xi'an, Shaanxi 710119, The People's Republic of China.
| | - Jiefang Kang
- National Engineering Laboratory for Resource Development of Endangered Crude Drugs in Northwest China, The Key Laboratory of Medicinal Resources and Natural Pharmaceutical Chemistry, The Ministry of Education, College of Life Sciences, Shaanxi Normal University, Xi'an, Shaanxi 710119, The People's Republic of China.
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13
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Mamun AA, Wu Y, Nasrin F, Akter A, Taniya MA, Munir F, Jia C, Xiao J. Role of Pyroptosis in Diabetes and Its Therapeutic Implications. J Inflamm Res 2021; 14:2187-2206. [PMID: 34079327 PMCID: PMC8164340 DOI: 10.2147/jir.s291453] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2020] [Accepted: 01/14/2021] [Indexed: 12/13/2022] Open
Abstract
Pyroptosis is mainly considered as a new pro-inflammatory mediated-programmed cell death. In addition, pyroptosis is described by gasdermin-induced pore formation on the membrane, cell swelling and rapid lysis, and several pro-inflammatory mediators interleukin-1β (IL-1β) and interleukin-18 (IL-18) release. Extensive studies have shown that pyroptosis is commonly involved by activating the caspase-1-dependent canonical pathway and caspase-4/5/11-dependent non-canonical pathway. However, pyroptosis facilitates local inflammation and inflammatory responses. Current researches have reported that pyroptosis promotes the progression of several diabetic complications. Emerging studies have suggested that some potential molecules targeting the pyroptosis and inflammasome signaling pathways could be a novel therapeutic avenue for managing and treating diabetes and its complications in the near future. Our narrative review concisely describes the possible mechanism of pyroptosis and its progressive understanding of the development of diabetic complications.
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Affiliation(s)
- Abdullah Al Mamun
- Department of Hand Surgery and Peripheral Neurosurgery, The First Affiliated Hospital and School of Pharmaceutical Sciences, Wenzhou, Zhejiang Province, 325035, People's Republic of China
| | - Yanqing Wu
- Institute of Life Sciences, Wenzhou University, Wenzhou, Zhejiang Province, 325035, People's Republic of China
| | - Fatema Nasrin
- Institute of Health and Biomedical Innovation, Translational Research Institute, Brisbane, Australia.,School of Clinical Sciences, Queensland University of Technology, Brisbane, Australia
| | - Afroza Akter
- Department of Microbiology, Noakhali Science and Technology University, Noakhali, Bangladesh
| | - Masuma Afrin Taniya
- Department of Life Sciences, School of Environment and Life Sciences, Independent University, Bangladesh, Dhaka, 1229, Bangladesh
| | - Fahad Munir
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000, Zhejiang Province, People's Republic of China
| | - Chang Jia
- Pediatric Research Institute, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, 325027, Zhejiang Province, People's Republic of China
| | - Jian Xiao
- Department of Hand Surgery and Peripheral Neurosurgery, The First Affiliated Hospital and School of Pharmaceutical Sciences, Wenzhou, Zhejiang Province, 325035, People's Republic of China
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14
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Zhang J, Wang C, Wang H, Li X, Xu J, Yu K. Loganin alleviates sepsis-induced acute lung injury by regulating macrophage polarization and inhibiting NLRP3 inflammasome activation. Int Immunopharmacol 2021; 95:107529. [PMID: 33744777 DOI: 10.1016/j.intimp.2021.107529] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2020] [Revised: 02/21/2021] [Accepted: 02/22/2021] [Indexed: 10/21/2022]
Abstract
Sepsis is a systemic inflammatory response syndrome resulted from severe infection. Excessive inflammation response plays an important role in sepsis-induced acute lung injury (ALI). Loganin is an iridoid glycoside isolated from Corni fructus and exerts an anti-inflammatory effect in multiple inflammatory diseases; however, the role of loganin in sepsis-induced ALI remains unknown. In the current study, the cecal ligation and puncture (CLP)-induced murine sepsis model was constructed to investigate the anti-inflammatory property of loganin in sepsis-induced ALI. Lipopolysaccharide (LPS)-treated Raw 264.7 cells and primary murine peritoneal macrophages were established to further explore underlying mechanism of loganin. Results showed that intragastrical administration of loganin significantly increased murine survival, reduced the alveolar structure damage and inflammatory cell infiltration. Loganin suppressed the release of the M1 macrophage-associated pro-inflammatory cytokines and induced the activation of M2-type anti-inflammatory cytokines. Besides, loganin dramatically inhibited NLRP3 inflammasome-mediated caspase-1 activation and subsequent IL-1β secretion. Further in vitro studies confirmed that loganin efficiently inhibited M1 macrophage polarization and NLRP3 inflammasome activation by blocking the extra-cellular signal-regulated kinase (ERK) and nuclear factor-kappa B (NF-κB) pathways. Taken together, the anti-inflammatory effect of loganin in sepsis-induced ALI was associated with the ERK and NF-κB pathway-mediated macrophage polarization and NLRP3 inflammasome activation. Our study offers a favorable mechanistic basis to support the therapeutic potential of loganin in anti-inflammatory diseases, such as sepsis-induced ALI.
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Affiliation(s)
- Jin Zhang
- Department of Critical Care Medicine, The First Affiliated Hospital of Harbin Medical University, Harbin Medical University, Harbin, Heilongjiang 150001, China
| | - Changsong Wang
- Department of Critical Care Medicine, Harbin Medical University Cancer Hospital, Harbin Medical University, Harbin, Heilongjiang 150081, China
| | - Hongliang Wang
- Department of Critical Care Medicine, The Second Affiliated Hospital of Harbin Medical University, Harbin Medical University, Harbin, Heilongjiang 150001, China
| | - Xueting Li
- Department of Critical Care Medicine, Harbin Medical University Cancer Hospital, Harbin Medical University, Harbin, Heilongjiang 150081, China
| | - Jingjing Xu
- Department of Critical Care Medicine, Harbin Medical University Cancer Hospital, Harbin Medical University, Harbin, Heilongjiang 150081, China
| | - Kaijiang Yu
- Department of Critical Care Medicine, The First Affiliated Hospital of Harbin Medical University, Harbin Medical University, Harbin, Heilongjiang 150001, China.
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15
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Zhang J, Wang C, Kang K, Liu H, Liu X, Jia X, Yu K. Loganin Attenuates Septic Acute Renal Injury with the Participation of AKT and Nrf2/HO-1 Signaling Pathways. DRUG DESIGN DEVELOPMENT AND THERAPY 2021; 15:501-513. [PMID: 33603340 PMCID: PMC7886113 DOI: 10.2147/dddt.s294266] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/04/2020] [Accepted: 01/12/2021] [Indexed: 01/23/2023]
Abstract
Purpose Sepsis, a destructive inflammatory response syndrome, is the principal reason to induce death in the intensive care unit. Loganin has been proved to possess the property of anti-inflammation, antioxidant, neuroprotection, and sedation. The primary aim of this study was to evaluate whether Loganin could alleviate acute kidney injury (AKI) during sepsis and investigate the latent mechanisms. Methods Septic AKI models were established by cecal ligation and puncture (CLP) surgery in mice and given Loganin (20, 40, 80 mg/kg) by gavage. Lipopolysaccharides (LPS)-stimulated human kidney proximal tubular (HK2) cells incubated in Loganin (5, 10, 20 μ M) were used to explore the accurate mechanisms. Survival rate, renal function (creatinine and blood urea nitrogen), and renal pathological changes were detected in septic mice. Oxidative stress markers (SOD, GSH-Px, MDA, and SOD), mitochondrial membrane potential, mitochondrial calcium overload, and nuclear factor E2-related factor 2 (Nrf2)/heme-oxygenase 1 (HO-1) pathway activation in vivo and in vitro were determined by commercial kits and Western blot. Cell apoptosis, apoptotic-related protein (cleaved caspase-3, Bcl-2, and Bax) expression and protein kinase B (AKT) phosphorylation in vivo and in vitro were measured by TUNEL staining and Western blot. Finally, AKT blockage by 10 μM LY294002 or Nrf2 inhibition by10 μ M ML385 were utilized to prove the involvement of AKT and Nrf2/HO-1 pathway in AKI during sepsis. Results We found Loganin treatment (20, 40, 80 mg/kg) mitigated septic AKI reflected by elevated renal function and palliative pathological changes. Oxidative stress and apoptosis in the kidney and LPS-treated HK2 cells were also inhibited by Loganin administration, which was accompanied by AKT and Nrf2/HO-1 pathway activation. Besides, the protective effects of Loganin could be diminished by AKT or Nrf2 blockage, indicating the involvement of AKT and Nrf2/HO-1 pathway. Conclusion The results suggested that the protective effects of Loganin on AKI during sepsis might be mediated by AKT and Nrf2/HO-1 pathway signaling activation in kidney proximal tubular cells.
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Affiliation(s)
- Jin Zhang
- Department of Critical Care Medicine, The First Affiliated Hospital of Harbin Medical University, Harbin Medical University, Harbin, Heilongjiang 150001, People's Republic of China
| | - Changsong Wang
- Department of Critical Care Medicine, Harbin Medical University Cancer Hospital, Harbin Medical University, Harbin, Heilongjiang 150081, People's Republic of China
| | - Kai Kang
- Department of Critical Care Medicine, The First Affiliated Hospital of Harbin Medical University, Harbin Medical University, Harbin, Heilongjiang 150001, People's Republic of China
| | - Haitao Liu
- Department of Critical Care Medicine, Harbin Medical University Cancer Hospital, Harbin Medical University, Harbin, Heilongjiang 150081, People's Republic of China
| | - Xiaowei Liu
- Department of Critical Care Medicine, The First Affiliated Hospital of Harbin Medical University, Harbin Medical University, Harbin, Heilongjiang 150001, People's Republic of China
| | - Xiaonan Jia
- Department of Critical Care Medicine, The First Affiliated Hospital of Harbin Medical University, Harbin Medical University, Harbin, Heilongjiang 150001, People's Republic of China
| | - Kaijiang Yu
- Department of Critical Care Medicine, The First Affiliated Hospital of Harbin Medical University, Harbin Medical University, Harbin, Heilongjiang 150001, People's Republic of China
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16
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Han B, Niu D, Wang T, An S, Wang Y, Chen X, Bi H, Xue X, Kang J. Ultrasonic-microwave assisted extraction of total triterpenoid acids from Corni Fructus and hypoglycemic and hypolipidemic activities of the extract in mice. Food Funct 2020; 11:10709-10723. [PMID: 33226385 DOI: 10.1039/d0fo02568b] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Triterpene acids, the main component of Corni Fructus, could improve diabetes mellitus, for which the underlying hypoglycemic mechanism is still unclear, in patients. In this study, total triterpenoid acids were extracted by ultrasonic-microwave assisted extraction optimized by the response surface methodology. The extract was then purified with an X-5 macroporous resin, and the yield of total triterpenoid acids increased to 281.24 mg g-1 as compared with the 35.71 mg g-1 obtained by unassisted extraction. The contents of five components were determined by ultrafast performance liquid chromatography. In addition, the hypoglycemic and hypolipidemic activities of total triterpenoid acids in diabetic mice induced by streptozotocin and a high fat diet were studied. The results indicated that all parameters (oral glucose tolerance, insulin resistance and liver damage) related to diabetes were significantly improved by total triterpenoid acids. Furthermore, total triterpenoid acids significantly recovered the expression level of AMP-activated protein kinase and its downstream proteins, including acetyl-CoA carboxylase, carnitine palmityltransferase-1, peroxisome proliferator-activated receptor alpha, sterol regulatory element-binding protein 1c and fatty acid synthase. Altogether, total triterpenoid acids could ameliorate hyperlipidemia and hyperglycemia in diabetic mice, probably by activating the AMP-activated protein kinase-peroxisome proliferator-activated receptor signaling pathway and inhibiting the sterol regulatory element-binding protein 1c and fatty acid synthase signaling pathways. Therefore, total triterpene acids, isolated from Corni Fructus which is a prevailing health food, could be a functional food ingredient with therapeutic and commercial values.
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Affiliation(s)
- Binkai Han
- National Engineering Laboratory for Resource Development of Endangered Crude Drugs in Northwest China, The Key Laboratory of Medicinal Resources and Natural Pharmaceutical Chemistry, The Ministry of Education, College of Life Sciences, Shaanxi Normal University, Xi'an, Shaanxi 710119, The People's Republic of China.
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17
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Hu J, Zhou J, Wu J, Chen Q, Du W, Fu F, Yu H, Yao S, Jin H, Tong P, Chen D, Wu C, Ruan H. Loganin ameliorates cartilage degeneration and osteoarthritis development in an osteoarthritis mouse model through inhibition of NF-κB activity and pyroptosis in chondrocytes. JOURNAL OF ETHNOPHARMACOLOGY 2020; 247:112261. [PMID: 31577939 DOI: 10.1016/j.jep.2019.112261] [Citation(s) in RCA: 74] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Revised: 09/04/2019] [Accepted: 09/29/2019] [Indexed: 05/25/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Corni Fructus (CF), the red fruit of Cornus officinalis Siebold & Zucc, has been used both as food and medicinal herb in traditional Chinese medicine (TCM). Loganin is a major iridoid glycoside and one of the quality control indexes of CF. In TCM clinical practice, prescription containing CF is commonly used to treat osteoarthritis (OA), but the underlying mechanisms of loganin are not yet utterly understood. AIM OF THE STUDY The aims of the present study are to confirm the therapeutic effects of loganin in an OA mouse model and to determine the mechanisms involved in the OA protective effects. MATERIALS AND METHODS The destabilization of the medial meniscus (DMM) procedure was performed on the right knee of 8-week-old C57BL/6 male mice. 30 or 100 μg/ml of loganin was then injected into articular space twice a week for 8 and 12-week. Safranin O/Fast green staining, H&E staining, micro-CT analysis were performed to analyze structural and morphological changes. The protein expression of collagen type II (Col2), metalloproteinase-3 (Mmp3), matrix metalloproteinase 13 (Mmp13) collagen type X (Col10), cryopyrin and caspase-1 were detected by immunochemistry staining. Immuno-fluorescence assay was performed to assess changes in expression of CD31, endomucin, p65 and p-I-κB. RESULTS Results of histomorphometry showed that loganin delays the progression of OA in the DMM model. In cartilage, loganin decreased the OARSI score, increasing hyaline cartilage (HC) thickness and decreasing calcified cartilage (CC) thickness. Moreover, loganin inhibited osteophyte formation, reduced the bone volume fraction (BV/TV), lowered trabecular thickness (Tb.Th) and increased trabecular separation (Tb.Sp) in subchondral bone. Mechanistically, loganin increased the expressions of Col2, decreases the expression of Mmp3, Mmp13, Col10, cryopyrin and caspase-1 in cartilage. In parallel, loganin inhibited the expression of CD31 and endomucin in subchondral bone. Furthermore, loganin suppressed nuclear translocation of p65 protein, and decreased the amount of p-I-κB in chondrocytes. CONCLUSIONS In summary, these results uncovered that loganin inhibits NF-κB signaling and attenuates cartilage matrix catabolism and pyroptosis of chondrocytes in articular cartilage. Loganin may serve as a potential therapeutic agent for OA treatment.
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Affiliation(s)
- Jiaming Hu
- The First Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, 310053, Zhejiang, China; The First Clinical Medical College of Zhejiang Chinese Medical University, Hangzhou, 310053, Zhejiang, China
| | - Jinyi Zhou
- The First Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, 310053, Zhejiang, China; The First Clinical Medical College of Zhejiang Chinese Medical University, Hangzhou, 310053, Zhejiang, China
| | - Jinting Wu
- The First Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, 310053, Zhejiang, China; The First Clinical Medical College of Zhejiang Chinese Medical University, Hangzhou, 310053, Zhejiang, China
| | - Quan Chen
- The First Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, 310053, Zhejiang, China; The First Clinical Medical College of Zhejiang Chinese Medical University, Hangzhou, 310053, Zhejiang, China
| | - Weibin Du
- Research Institute of Orthopedics, The Affiliated JiangNan Hospital of Zhejiang Chinese Medical University, Hangzhou, 310053, China
| | - Fangda Fu
- The First Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, 310053, Zhejiang, China; The First Clinical Medical College of Zhejiang Chinese Medical University, Hangzhou, 310053, Zhejiang, China
| | - Huan Yu
- The First Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, 310053, Zhejiang, China; The First Clinical Medical College of Zhejiang Chinese Medical University, Hangzhou, 310053, Zhejiang, China
| | - Sai Yao
- The First Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, 310053, Zhejiang, China; The First Clinical Medical College of Zhejiang Chinese Medical University, Hangzhou, 310053, Zhejiang, China
| | - Hongting Jin
- The First Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, 310053, Zhejiang, China; The First Clinical Medical College of Zhejiang Chinese Medical University, Hangzhou, 310053, Zhejiang, China; Longhua Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, 200032, China
| | - Peijian Tong
- The First Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, 310053, Zhejiang, China; The First Clinical Medical College of Zhejiang Chinese Medical University, Hangzhou, 310053, Zhejiang, China; Institute of Orthopedics and Traumatology, The First Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, 310053, Zhejiang, China
| | - Di Chen
- The First Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, 310053, Zhejiang, China; Institute of Orthopedics and Traumatology, The First Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, 310053, Zhejiang, China; Department of Orthopedic Surgery, Rush University Medical Center, Chicago, IL, USA
| | - Chengliang Wu
- The First Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, 310053, Zhejiang, China; The First Clinical Medical College of Zhejiang Chinese Medical University, Hangzhou, 310053, Zhejiang, China.
| | - Hongfeng Ruan
- The First Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, 310053, Zhejiang, China; The First Clinical Medical College of Zhejiang Chinese Medical University, Hangzhou, 310053, Zhejiang, China; Longhua Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, 200032, China; Institute of Orthopedics and Traumatology, The First Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, 310053, Zhejiang, China.
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EGb 761 inhibits Aβ1-42-induced neuroinflammatory response by suppressing P38 MAPK signaling pathway in BV-2 microglial cells. Neuroreport 2019; 30:434-440. [PMID: 30817685 DOI: 10.1097/wnr.0000000000001223] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Ginkgo biloba extract EGb 761 possesses a variety of biological effects and has been proved to be beneficial in Alzheimer's disease. This study aimed to explore the anti-inflammatory mechanisms of EGb 761 on the Aβ1-42-induced BV-2 microglial cells. We analyzed the production and gene expression of proinflammatory cytokines by enzyme-linked immunosorbent assay and qRT-PCR, examined phosphorylation of MAPKs by western blot and measured nuclear factor-κB nuclear translocation. Compared with Aβ1-42-treated group, EGb 761 inhibited release and gene expression of tumor necrosis factor-α and interleukin-1β, suppressed nuclear translocation of nuclear factor-κB and attenuated phosphorylation of p38 MAPK in a concentration-dependent manner, but not ERK and JNK. In summary, the results suggested that EGb 761 could attenuate Aβ1-42-induced neuroinflammatory response.
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Gong WX, Zhou YZ, Qin XM, DU GH. Involvement of mitochondrial apoptotic pathway and MAPKs/NF-κ B inflammatory pathway in the neuroprotective effect of atractylenolide III in corticosterone-induced PC12 cells. Chin J Nat Med 2019; 17:264-274. [PMID: 31076130 DOI: 10.1016/s1875-5364(19)30030-5] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2018] [Indexed: 12/20/2022]
Abstract
Atractylenolide III (ATL-III), a sesquiterpene compound isolated from Rhizoma Atractylodis Macrocephalae, has revealed a number of pharmacological properties including anti-inflammatory, anti-cancer activity, and neuroprotective effect. This study aimed to evaluate the cytoprotective efficiency and potential mechanisms of ATL-III on corticosterone injured rat phaeochromocytoma (PC12) cells. Our results demonstrate that ATL-III increases cell viability and reduces the release of lactate dehydrogenase (LDH). The results suggest that ATL-III protects PC12 cells from corticosterone-induced injury by inhibiting the intracellular Ca2+ overloading, inhibiting the mitochondrial apoptotic pathway and modulating the MAPK/NF-ΚB inflammatory pathways. These findings provide a novel insight into the molecular mechanism by which ATL-III protected the PC12 cells against corticosterone-induced injury for the first time. Our results provide the evidence that ATL-III may serve as a therapeutic agent in the treatment of depression.
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Affiliation(s)
- Wen-Xia Gong
- Modern Research Center for Traditional Chinese Medicine, Shanxi University, Taiyuan 030006, China
| | - Yu-Zhi Zhou
- Modern Research Center for Traditional Chinese Medicine, Shanxi University, Taiyuan 030006, China.
| | - Xue-Mei Qin
- Modern Research Center for Traditional Chinese Medicine, Shanxi University, Taiyuan 030006, China.
| | - Guan-Hua DU
- Modern Research Center for Traditional Chinese Medicine, Shanxi University, Taiyuan 030006, China; Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100050, China
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20
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Meng J, Li Y, Zhang M, Li W, Zhou L, Wang Q, Lin L, Jiang L, Zhu W. A combination of curcumin, vorinostat and silibinin reverses A β-induced nerve cell toxicity via activation of AKT-MDM2-p53 pathway. PeerJ 2019; 7:e6716. [PMID: 31086728 PMCID: PMC6487801 DOI: 10.7717/peerj.6716] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2018] [Accepted: 03/05/2019] [Indexed: 01/10/2023] Open
Abstract
Alzheimer’s disease (AD) is a significant health issue for the elderly and becoming increasingly common as the global population ages. Although many efforts have been made to elucidate its pathology, there is still a lack of effective clinical anti-AD agents. Previous research has shown the neuroprotective properties of a combination of curcumin and vorinostat. In this study, nine other neuroprotective agents were investigated to examine whether a three-drug combination of curcumin, vorinostat, and a new drug is more advantageous than the previous two-drug combination in alleviating amyloid beta (Aβ)-induced nerve cell toxicity. Cell viability assay was performed to screen these agents, and further validation tests, including determination of cellular oxidative stress, apoptosis, and activity of the AKT/MDM2/p53 pathway, were performed. Among the nine candidate compounds, only silibinin at 1 µM reduced Aβ25–35-induced toxicity in PC12 cells. The neuroprotective effects of 1 µM silibinin in combination with 5 µM curcumin and 0.5 µM vorinostat (CVS) was shown in PC12 cells, in which it decreased apoptosis and oxidative stress marker levels that were increased by 20 µM Aβ25–35. Western blotting results showed that CVS pretreatment significantly increased the phosphorylation of AKT, BAD, and MDM2, which resulted in decreased intracellular expression of p53. Further, immunofluorescence results showed reduced p53 levels in the nuclei of PC12 cells following CVS pretreatment, indicating a reduction in the p53-mediated transcriptional activity associated with Aβ25–35 exposure. In conclusion, our findings suggested that pretreatment with CVS protected PC12 cells from Aβ25–35-induced toxicity through modulation of the AKT/MDM2/p53 pathway. Thus, CVS may present a new therapeutic option for treating AD.
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Affiliation(s)
- Jia Meng
- Department of General Medicine, Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Yan Li
- Department of Pharmacy, Fourth Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Mingming Zhang
- Department of General Medicine, Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Wenjing Li
- Department of General Medicine, Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Lin Zhou
- Department of General Medicine, Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Qiujun Wang
- Department of General Medicine, Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Lin Lin
- Department of General Medicine, Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Lihong Jiang
- Department of General Medicine, Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Wenliang Zhu
- Department of Pharmacy, Second Affiliated Hospital of Harbin Medical University, Harbin, China
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21
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Park JY, Park SD, Koh YJ, Kim DI, Lee JH. Aqueous extract of Dipsacus asperoides suppresses lipopolysaccharide-stimulated inflammatory responses by inhibiting the ERK1/2 signaling pathway in RAW 264.7 macrophages. JOURNAL OF ETHNOPHARMACOLOGY 2019; 231:253-261. [PMID: 30415062 DOI: 10.1016/j.jep.2018.11.010] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/28/2018] [Revised: 11/03/2018] [Accepted: 11/05/2018] [Indexed: 06/09/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Dipsaci Radix, which is the dried root of Dipsacus asperoides C. Y. Cheng and T. M. Ai (Dipsacaceae), is used to treat back pain and blood stasis syndrome in Korean traditional medicine. AIM OF THE STUDY To understand the mechanisms responsible for the pharmacological activities of D. asperoides, we investigated the inhibitory effect of D. asperoides on lipopolysaccharide (LPS)-induced inflammation in mouse macrophages RAW 264.7 cells. MATERIALS AND METHODS Aqueous extract of D. asperoides (AEDA) was prepared by boiling D. asperoides in water and then administered to LPS treated RAW 264.7 cells. Cell viabilities were measured using an MTT assay, and protein levels were determined by western blotting. The ROS scavenging activity of AEDA was measured using a DCFH-DA assay and levels of nitric oxide (NO) were determined using a NO assay. The nuclear translocations of NF-κB and Nrf2 were investigated immunocytochemically, and pro-inflammatory cytokines in supernatant were evaluated by ELISA. RESULTS Treatment with AEDA suppressed the expressions of inducible nitric oxide synthase (iNOS) and cyclooxygenase-2 (COX-2) in LPS-stimulated RAW 264.7 macrophages. AEDA also reduced ROS, pro-inflammatory cytokine (IL-6 and IL-1β) levels, and iNOS-derived NO and COX-2-derived prostaglandin E2 release to medium, and suppressed the phosphorylation and degradation of IκB and the activation of NF-κB in macrophages. Furthermore, treatment with AEDA inhibited the ERK1/2 pathway but not the JNK or p38 MAPK pathways. In addition, AEDA significantly promoted Nrf2 translocation from cytoplasm to nucleus and up-regulated the expression of HO-1. CONCLUSION These results suggest that AEDA has anti-inflammatory and anti-oxidative effects through the inhibition of NF-κB and ERK1/2 and the activation of Nrf2/HO-1 in macrophages.
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Affiliation(s)
- Ju-Yeon Park
- College of Korean Medicine, Dongguk University, Goyang 10326, Republic of Korea
| | - Sun-Dong Park
- College of Korean Medicine, Dongguk University, Goyang 10326, Republic of Korea
| | - Young Jun Koh
- College of Korean Medicine, Dongguk University, Goyang 10326, Republic of Korea
| | - Dong-Il Kim
- College of Korean Medicine, Dongguk University, Goyang 10326, Republic of Korea.
| | - Ju-Hee Lee
- College of Korean Medicine, Dongguk University, Goyang 10326, Republic of Korea.
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Xu R, Yuan Y, Qi J, Zhou J, Guo X, Zhang J, Zhan R. Elucidation of the Intestinal Absorption Mechanism of Loganin in the Human Intestinal Caco-2 Cell Model. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE : ECAM 2018; 2018:8340563. [PMID: 30671130 PMCID: PMC6323428 DOI: 10.1155/2018/8340563] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/25/2018] [Revised: 08/26/2018] [Accepted: 12/04/2018] [Indexed: 11/17/2022]
Abstract
Loganin, iridoid glycosides, is the main bioactive ingredients in the plant Strychnos nux-vomica L. and demonstrates various pharmacological effects, though poor oral bioavailability in rats. In this study, the intestinal absorption mechanism of loganin was investigated using the human intestinal Caco-2 cell monolayer model in both the apical-to-basolateral (A-B) and the basolateral-to-apical (B-A) direction; additionally, transport characteristics were systematically investigated at different concentrations, pHs, temperatures, and potential transporters. The absorption permeability (PappAB) of loganin, which ranged from 12.17 to 14.78 × 10-6cm/s, was high at four tested concentrations (5, 20, 40, and 80μM), while the major permeation mechanism of loganin was found to be passive diffusion with active efflux mediated by multidrug resistance-associated protein (MRP) and breast cancer resistance protein (BCRP). In addition, it was found that loganin was not the substrate of efflux transporter P-glycoprotein (P-gp) since the selective inhibitor (verapamil) of the efflux transporter exhibited little effects on the transport of loganin in the human intestinal Caco-2 cells. Meanwhile, transport from the apical to the basolateral side increased 2.09-fold after addition of a MRP inhibitor and 2.32-fold after addition of a BCRP inhibitor. In summary, our results clearly demonstrate, for the first time, a good permeability of loganin in the human intestinal Caco-2 cell model and elucidate, in detail, the intestinal absorption mechanism and the effects of transporters on iridoid glycosides compounds.
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Affiliation(s)
- Renjie Xu
- Department of Pharmacy, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai200092, China
| | - Yichu Yuan
- Department of Urology, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai200127, China
| | - Jia Qi
- Department of Pharmacy, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai200092, China
| | - Jia Zhou
- Department of Pharmacy, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai200092, China
| | - Xiaowen Guo
- Department of Pharmacy, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai200092, China
| | - Jian Zhang
- Department of Pharmacy, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai200092, China
| | - Ruanjuan Zhan
- Department of Pharmacy, The First Affiliated Hospital, Wenzhou Medical University, Wenzhou325035, China
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Cui Y, Wang Y, Zhao D, Feng X, Zhang L, Liu C. Loganin prevents BV-2 microglia cells from Aβ 1-42 -induced inflammation via regulating TLR4/TRAF6/NF-κB axis. Cell Biol Int 2018; 42:1632-1642. [PMID: 30288860 DOI: 10.1002/cbin.11060] [Citation(s) in RCA: 49] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2018] [Accepted: 09/29/2018] [Indexed: 12/14/2022]
Abstract
Neuroinflammation is closely related with the pathogenesis and progress of neurodegenerative diseases including Alzheimer's disease (AD). Loganin, an iridoid glycoside obtained from traditional Chinese medicine Cornus officinalis, has properties of inhibiting inflammation and improving memory. The present study was aimed to investigate effects of loganin on Aβ-induced inflammation and to explore the underlying mechanisms. BV-2 microglia cells were stimulated with 10 µM Aβ1-42 for 24 h to induce inflammatory damage. According to results of CCK-8 assay, the doses of loganin in present work were 10 and 30 µM. We found that treatment with loganin could inhibit Aβ1-42 -induced microglia activation. Furthermore, loganin treatment prevented the over-production of Tumor necrosis factor-α (TNF-α), Interleukin-6 (IL-6), Macrophage Chemotactic Protein 1(MCP-1), Nitric oxide (NO), Prostaglandin E2 (PGE2) and the up-regulation of inducible nitric oxide synthase (iNOS) and Cyclooxygenase 2 (COX-2) in Aβ1-42 -stimulated BV-2 cells. Results from Western blots demonstrated that loganin inhibited Aβ1-42 -induced elevation in Toll-like receptor 4 (TLR4), Myeloid Differentiation Factor 88 (MyD88) and TNF receptor-associated factor 6 (TRAF6). Loganin treatment also attenuated the increased phosphorylation level of IRAK4 caused by Aβ1-42 . Additionally, loganin alleviated nuclear translocation of NF-κB p65 subunit in Aβ1-42 -stimulated BV-2 cells, and this phenomenon could be reversed by TLR4 agonist LPS. Further, the anti-inflammatory effects of loganin were attenuated when TLR4 signaling pathway was re-activated by LPS. Taken together, our data indicated that loganin could attenuate inflammatory response induced by Aβ in BV-2 microglia cells, partially through deactivating the TLR4/TRAF6/NF-κB axis.
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Affiliation(s)
- Yong Cui
- Department of Human Anatomy, School of Basic Medical Sciences, Liaoning University of Traditional Chinese Medicine, Shenyang, 110847, People's Republic of China
| | - Yanjie Wang
- Department of Biochemistry, School of Basic Medical Sciences, Liaoning University of Traditional Chinese Medicine, 79 East Chongshan Road, Shenyang, 110847, People's Republic of China
| | - Danyu Zhao
- Department of Biochemistry, School of Basic Medical Sciences, Liaoning University of Traditional Chinese Medicine, 79 East Chongshan Road, Shenyang, 110847, People's Republic of China
| | - Xiaofan Feng
- Department of Biochemistry, School of Basic Medical Sciences, Liaoning University of Traditional Chinese Medicine, 79 East Chongshan Road, Shenyang, 110847, People's Republic of China
| | - Lin Zhang
- Department of Biochemistry, School of Basic Medical Sciences, Liaoning University of Traditional Chinese Medicine, 79 East Chongshan Road, Shenyang, 110847, People's Republic of China
| | - Chun Liu
- Department of Biochemistry, School of Basic Medical Sciences, Liaoning University of Traditional Chinese Medicine, 79 East Chongshan Road, Shenyang, 110847, People's Republic of China
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Yang ZY, Yuan CX. IL-17A promotes the neuroinflammation and cognitive function in sevoflurane anesthetized aged rats via activation of NF-κB signaling pathway. BMC Anesthesiol 2018; 18:147. [PMID: 30342469 PMCID: PMC6195755 DOI: 10.1186/s12871-018-0607-4] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2018] [Accepted: 10/05/2018] [Indexed: 12/12/2022] Open
Abstract
Background To investigate the role of IL-17A in the neuroinflammation and cognitive function of aged rats anaesthetized with sevoflurane through NF-κB pathway. Method The aged and young adult rats were randomly divided into Control (inhale oxygen only), Sevoflurane (inhale oxygen and sevoflurane), Sevo (Sevoflurane) + anti-IL-17A (injected with IL-17A antibody, inhale oxygen and sevoflurane), and Sevo + NC groups (injected with IgG2a antibody, inhale oxygen and sevoflurane). Cognitive function was evaluated by Morris water maze and contextual fear conditioning tests. Tumor necrosis factor (TNF)-α, Interleukin (IL)-1β, IL-6 and monocyte chemoattractant protein (MCP)-1 expressions in the hippocampus of rats were detected by ELISA (enzyme-linked immunosorbent assay) assay, and Nuclear factor (NF)-κB pathway-related proteins by Western blot. Results Sevoflurane anaesthetized aged rats showed longer escape latency and swimming distance, fewer platform crossing times, shortened stay time in the platform quadrant compared to Control rats; In addition, increased levels in hippocampal expression of malondialdehyde (MDA), IL-17A, NF-κB p65, inducible nitric oxide synthase (iNOS) and COX-2, as well as a reduced level of superoxide dismutase (SOD) were also observed in these animals. However, the sevoflurane anesthetized aged rats treated with anti-IL-17A presented a completely opposite tendency concerning the above factors (all P < 0.05). Nevertheless, there was no significant difference in the acquisition of learning or memory, neuroinflammation and oxidative stress of young adult rats in all groups (all P > 0.05). Conclusion Anti-IL-17A may alleviate neuroinflammation and oxidative stress via inhibiting NF-κB pathway, thereby attenuating post-operative cognitive dysfunction (POCD) in aged rats anaesthetized with sevoflurane.
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Affiliation(s)
- Zhan-Yun Yang
- Department of Anesthesia Surgery, Jining NO.1 People's Hospital, No.6, Jiankang Road, Rencheng District, Jining, 272000, Shandong, China
| | - Chang-Xiu Yuan
- Department of Anesthesia Surgery, Jining NO.1 People's Hospital, No.6, Jiankang Road, Rencheng District, Jining, 272000, Shandong, China.
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Thummayot S, Tocharus C, Jumnongprakhon P, Suksamrarn A, Tocharus J. Cyanidin attenuates Aβ 25-35-induced neuroinflammation by suppressing NF-κB activity downstream of TLR4/NOX4 in human neuroblastoma cells. Acta Pharmacol Sin 2018; 39:1439-1452. [PMID: 29671417 DOI: 10.1038/aps.2017.203] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2017] [Accepted: 12/08/2017] [Indexed: 12/21/2022] Open
Abstract
Cyanidin is polyphenolic pigment found in plants. We have previously demonstrated that cyanidin protects nerve cells against Aβ25-35-induced toxicity by decreasing oxidative stress and attenuating apoptosis mediated by both the mitochondrial apoptotic pathway and the ER stress pathway. To further elucidate the molecular mechanisms underlying the neuroprotective effects of cyanidin, we investigated the effects of cyanidin on neuroinflammation mediated by the TLR4/NOX4 pathway in Aβ25-35-treated human neuroblastoma cell line (SK-N-SH). SK-N-SH cells were exposed to Aβ25-35 (10 μmol/L) for 24 h. Pretreatment with cyanidin (20 μmol/L) or NAC (20 μmol/L) strongly inhibited the NF-κB signaling pathway in the cells evidenced by suppressing the degradation of IκBα, translocation of the p65 subunit of NF-κB from the cytoplasm to the nucleus, and thereby reducing the expression of iNOS protein and the production of NO. Furthermore, pretreatment with cyanidin greatly promoted the translocation of the Nrf2 protein from the cytoplasm to the nucleus; upregulating cytoprotective enzymes, including HO-1, NQO-1 and GCLC; and increased the activity of SOD enzymes. Pretreatment with cyanidin also decreased the expression of TLR4, directly improved intracellular ROS levels and regulated the activity of inflammation-related downstream pathways including NO production and SOD activity through TLR4/NOX4 signaling. These results demonstrate that TLR4 is a primary receptor in SK-N-SH cells, by which Aβ25-35 triggers neuroinflammation, and cyanidin attenuates Aβ-induced inflammation and ROS production mediated by the TLR4/NOX4 pathway, suggesting that inhibition of TLR4 by cyanidin could be beneficial in preventing neuronal cell death in the process of Alzheimer's disease.
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Habtemariam S. Iridoids and Other Monoterpenes in the Alzheimer's Brain: Recent Development and Future Prospects. Molecules 2018; 23:molecules23010117. [PMID: 29316661 PMCID: PMC6017424 DOI: 10.3390/molecules23010117] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2017] [Revised: 01/04/2018] [Accepted: 01/05/2018] [Indexed: 12/14/2022] Open
Abstract
Iridoids are a class of monoterpenoid compounds constructed from 10-carbon skeleton of isoprene building units. These compounds in their aglycones and glycosylated forms exist in nature to contribute to mechanisms related to plant defenses and diverse plant-animal interactions. Recent studies have also shown that iridoids and other structurally related monoterpenes display a vast array of pharmacological effects that make them potential modulators of the Alzheimer’s disease (AD). This review critically evaluates the therapeutic potential of these natural products by assessing key in vitro and in vivo data published in the scientific literature. Mechanistic approach of scrutiny addressing their effects in the Alzheimer’s brain including the τ-protein phosphorylation signaling, amyloid beta (Aβ) formation, aggregation, toxicity and clearance along with various effects from antioxidant to antiinflammatory mechanisms are discussed. The drug likeness of these compounds and future prospects to consider in their development as potential leads are addressed.
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Affiliation(s)
- Solomon Habtemariam
- Pharmacognosy Research Laboratories & Herbal Analysis Services, University of Greenwich, Central Avenue, Chatham-Maritime, Kent ME4 4TB, UK.
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27
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Xu YD, Cui C, Sun MF, Zhu YL, Chu M, Shi YW, Lin SL, Yang XS, Shen YQ. Neuroprotective Effects of Loganin on MPTP-Induced Parkinson's Disease Mice: Neurochemistry, Glial Reaction and Autophagy Studies. J Cell Biochem 2017; 118:3495-3510. [PMID: 28338241 DOI: 10.1002/jcb.26010] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2017] [Accepted: 03/22/2017] [Indexed: 02/05/2023]
Abstract
Parkinson's disease (PD) is a progressive neurodegenerative disease, involving resting tremor and bradykinesia, for which no recognized therapies or drugs are available to halt or slow progression. In recent years, natural botanic products have been considered relatively safe, with limited side effects, and are expected to become an important source for clinical mediation of PD in the future. Our study focuses on the ability of loganin, a compound derived from fruits of cornus, to mediate neuroprotection in a mouse model of PD. Mice were administered 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP) with a dosage of 30 mg/kg daily for 5 days to establish a subacute PD model and treated with loganin. Locomotor activity was assessed by a pole test, then mice were euthanized at 1 and 3 days after the last treatment, and brain tissue was prepared for subsequent assays. Loganin rescued decrease of dopamine levels and tyrosine hydroxylase (TH) expression in the striatum, and shortened total locomotor activity (TLA) time of mice. Furthermore, loganin alleviated microglia and astrocyte activation, and suppressed TNF-α and caspase-3 expression through a c-Abl-p38-NFκB pathway. Loganin also downregulated LC3-II and Drp1 expression, and decreased the level of acidic vesicular organelles (AVOs). Loganin exerts neuroprotective effects on MPTP-induced PD mice by decreasing inflammation, autophagy, and apoptosis, suggesting that loganin could serve as a therapeutic drug to ameliorate PD. J. Cell. Biochem. 118: 3495-3510, 2017. © 2017 Wiley Periodicals, Inc.
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Affiliation(s)
- Yi-Da Xu
- Wuxi Medical School, Jiangnan University, Wuxi 214122, China
| | - Chun Cui
- Wuxi Medical School, Jiangnan University, Wuxi 214122, China
| | - Meng-Fei Sun
- Wuxi Medical School, Jiangnan University, Wuxi 214122, China
| | - Ying-Li Zhu
- Wuxi Medical School, Jiangnan University, Wuxi 214122, China
| | - Min Chu
- Wuxi Medical School, Jiangnan University, Wuxi 214122, China
| | - Yun-Wei Shi
- Medical School of Nantong University, Nantong 226019, China
| | - Stanley Li Lin
- Department of Cell Biology, Shantou University Medical College, Shantou 515041, China
| | | | - Yan-Qin Shen
- Wuxi Medical School, Jiangnan University, Wuxi 214122, China
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28
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Zhang Y, Chen C, Jiang Y, Wang S, Wu X, Wang K. PPARγ coactivator-1α (PGC-1α) protects neuroblastoma cells against amyloid-beta (Aβ) induced cell death and neuroinflammation via NF-κB pathway. BMC Neurosci 2017; 18:69. [PMID: 28946859 PMCID: PMC5612334 DOI: 10.1186/s12868-017-0387-7] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2017] [Accepted: 09/17/2017] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Alzheimer's disease is characterized by the accumulation of amyloid beta (Aβ) and the formation of neurofibrillary tangles. Aβ is the main constituent of senile plaques and is largely involved in neuronal death and neuroinflammation. Peroxisome proliferator-activated receptor gamma coactivator-1 alpha (PGC-1α) is one of the main transcriptional coactivator and has been related to many fields such as energy metabolism, cardiovascular disease, neurodegenerative disorders, and so on. RESULTS Treatment with Aβ1-42 reduced the expression of PGC-1α in both protein and RNA levels of neuroblastoma N2a cells. Aβ1-42 induced a robust activation of cleaved caspase-3 while PGC-1α suppressed this activation and protected N2a cells from Aβ-induced cell death. Overexpression of PGC-1α significantly reduced the level of main proinflammatory cytokines. In addition, PGC-1α inhibited the transportation of NF-κB p65 from cytoplasm to nucleus and IκBα degradation induced by Aβ1-42. CONCLUSION Our results have demonstrated that PGC-1α can protect neuroblastoma cells against Aβ-induced neuronal death and neuroinflammation. Moreover, this neuroprotective effect of PGC-1α is regulated through NF-κB pathway. Taken together, our work provides evidence that PGC-1α could be beneficial in targeting Aβ neurotoxicity.
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Affiliation(s)
- Yuqin Zhang
- Department of Neurology, The First Affiliated Hospital of Anhui Medical University, Hefei, 230032, Anhui, China.,Department of Neurology, The Second People's Hospital of Anhui Province, Hefei, 230011, Anhui, China
| | - Changchun Chen
- Department of Neurology, The Second People's Hospital of Anhui Province, Hefei, 230011, Anhui, China
| | - Yanliu Jiang
- Department of Neurology, The Second People's Hospital of Anhui Province, Hefei, 230011, Anhui, China
| | - Shupei Wang
- Department of Neurology, The Second People's Hospital of Anhui Province, Hefei, 230011, Anhui, China
| | - Xiaoyu Wu
- Department of Neurology, The Second People's Hospital of Anhui Province, Hefei, 230011, Anhui, China
| | - Kai Wang
- Department of Neurology, The First Affiliated Hospital of Anhui Medical University, Hefei, 230032, Anhui, China.
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Ahn JH, Mo EJ, Jo YH, Kim SB, Hwang BY, Lee MK. Variation of loganin content in Cornus officinalis fruits at different extraction conditions and maturation stages. Biosci Biotechnol Biochem 2017; 81:1973-1977. [PMID: 28828930 DOI: 10.1080/09168451.2017.1361807] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
Efficient preparation of loganin from Cornus officinalis fruits was investigated. First, effect of extraction conditions on loganin yield was measured. The loganin content in C. officinalis extract was greatly affected by ethanol concentration and extraction time whereas extraction temperature exerted relatively little effect. Response surface methodology with Box-Behnken design suggested optimized extraction condition for maximum loganin yield as ethanol concentration, 32.0%; temperature 46.2 °C and extraction time, 46.7 min, which yielded 10.4 μg loganin/mg dried fruit. Next, the effect of maturation stage of C. officinalis fruits on loganin content was investigated. The loganin content in the extract of C. officinalis fruits was decreased as the maturation process. The loganin content in the unripe fruits was 18.0 μg/mg extract whereas reduced to 13.3 μg/mg extract for ripe fruits. Taken together, our present study suggested the importance of extraction condition and maturation stages for efficient preparation of loganin from C. officinalis fruits.
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Affiliation(s)
- Jong Hoon Ahn
- a College of Pharmacy , Chungbuk National University , Cheongju , Korea
| | - Eun Jin Mo
- a College of Pharmacy , Chungbuk National University , Cheongju , Korea
| | - Yang Hee Jo
- a College of Pharmacy , Chungbuk National University , Cheongju , Korea
| | - Seon Beom Kim
- a College of Pharmacy , Chungbuk National University , Cheongju , Korea
| | - Bang Yeon Hwang
- a College of Pharmacy , Chungbuk National University , Cheongju , Korea
| | - Mi Kyeong Lee
- a College of Pharmacy , Chungbuk National University , Cheongju , Korea
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30
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Chao G, Tian X, Zhang W, Ou X, Cong F, Song T. Blocking Smad2 signalling with loganin attenuates SW10 cell cycle arrest induced by TNF-α. PLoS One 2017; 12:e0176965. [PMID: 28475649 PMCID: PMC5419568 DOI: 10.1371/journal.pone.0176965] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2017] [Accepted: 04/19/2017] [Indexed: 11/19/2022] Open
Abstract
The activity of Schwann cells (SWCs) is very important in trauma-induced nerve repair, and tumour necrosis factor-α (TNF-α) produced during tissue injury inhibits the viability of SWCs, which delays the repair of peripheral nerves. Loganin is an iridoid glycoside that has been shown to alleviate a variety of cytotoxic effects. In the current study, we evaluated the potential efficacy and the mechanism of action of loganin in TNF-α-induced cytotoxicity in SW10 cells. The experimental results indicated that loganin blocked TNF-α-mediated Smad2 activation, downregulated the expression of the G1 phase cell cycle inhibitor p15IN4KB, and upregulated the expression of the G1 phase cell cycle activator cyclin D1-CDK4/6, which upregulated E2F-1-dependent survivin expression and relieved TNF-α-induced apoptosis in SW10 cells. The protective effect of loganin on SWCs has potential medicinal value in the promotion of peripheral nerve repair and is significant for studies in the field of tissue regeneration.
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Affiliation(s)
- Gao Chao
- Department of Bone Microsurgery, Honghui Hospital, Xi'an Jiaotong University College of Medicine, Xi'an, China
| | - Xiaoning Tian
- Department of Bone Microsurgery, Honghui Hospital, Xi'an Jiaotong University College of Medicine, Xi'an, China
| | - Wentao Zhang
- Department of Bone Microsurgery, Honghui Hospital, Xi'an Jiaotong University College of Medicine, Xi'an, China
| | - Xuehai Ou
- Department of Bone Microsurgery, Honghui Hospital, Xi'an Jiaotong University College of Medicine, Xi'an, China
| | - Fei Cong
- Department of Bone Microsurgery, Honghui Hospital, Xi'an Jiaotong University College of Medicine, Xi'an, China
| | - Tao Song
- Department of Bone Microsurgery, Honghui Hospital, Xi'an Jiaotong University College of Medicine, Xi'an, China
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31
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Yao L, Peng SX, Xu YD, Lin SL, Li YH, Liu CJ, Zhao HD, Wang LF, Shen YQ. Unexpected Neuroprotective Effects of Loganin on 1-Methyl-4-Phenyl-1,2,3,6-Tetrahydropyridine-Induced Neurotoxicity and Cell Death in Zebrafish. J Cell Biochem 2017; 118:615-628. [PMID: 27662601 DOI: 10.1002/jcb.25749] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2016] [Accepted: 09/21/2016] [Indexed: 02/05/2023]
Abstract
1-methyl-4-phenyl-1,2,3,6 tetrahydropyridine (MPTP), which induces the pathological characteristics of Parkinson's disease in rodents, also specifically targets dopaminergic neurons in zebrafish embryos and larvae. Loganin, a traditional Chinese drug, was reported to regulate immune function and possess anti-inflammatory and anti-shock effects. Here, we investigate the role of loganin in MPTP-induced Parkinson-like abnormalities in zebrafish. MPTP treatment-induced abnormal development, in larvae, such as pericardium edema, increased yolk color, yolk sac edema, and retarded yolk sac resorption, as well as defects in brain development. Loganin could block MPTP-induced defects, with little toxicity to the eggs. Results of whole mount in situ hybridization showed loganin prevented the loss of both dopaminergic neurons and locomotor activity, exhibited by larvae treated with MPTP. In addition, loganin significantly rescued MPTP-induced neurotoxicity on PC12 cells, possibly through the suppression of PI3K/Akt/mTOR axis and JNK signaling pathways. In conclusion, loganin blocks MPTP-induced neurotoxicity and abnormal development in zebrafish. J. Cell. Biochem. 118: 615-628, 2017. © 2016 Wiley Periodicals, Inc.
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Affiliation(s)
- Li Yao
- Wuxi Medical College, Jiangnan University, Wuxi, Jiangsu, 214122, People's Republic of China
| | - Shi-Xiao Peng
- Wuxi Medical College, Jiangnan University, Wuxi, Jiangsu, 214122, People's Republic of China
| | - Yi-Da Xu
- Wuxi Medical College, Jiangnan University, Wuxi, Jiangsu, 214122, People's Republic of China
| | - Stanley Li Lin
- Department of Cell Biology, Shantou University Medical College, Shantou, Guangdong, 515041, People's Republic of China
| | - Yu-Hong Li
- Wuxi Medical College, Jiangnan University, Wuxi, Jiangsu, 214122, People's Republic of China
| | - Chun-Jie Liu
- Wuxi Medical College, Jiangnan University, Wuxi, Jiangsu, 214122, People's Republic of China
| | - Hou-De Zhao
- Wuxi Medical College, Jiangnan University, Wuxi, Jiangsu, 214122, People's Republic of China
| | - Lin-Fang Wang
- Wuxi Medical College, Jiangnan University, Wuxi, Jiangsu, 214122, People's Republic of China
| | - Yan-Qin Shen
- Wuxi Medical College, Jiangnan University, Wuxi, Jiangsu, 214122, People's Republic of China
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Hwang ES, Kim HB, Lee S, Kim MJ, Lee SO, Han SM, Maeng S, Park JH. Loganin enhances long-term potentiation and recovers scopolamine-induced learning and memory impairments. Physiol Behav 2017; 171:243-248. [PMID: 28069458 DOI: 10.1016/j.physbeh.2016.12.043] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2016] [Revised: 12/04/2016] [Accepted: 12/21/2016] [Indexed: 12/17/2022]
Abstract
Although the incidence rate of dementia is rapidly growing in the aged population, therapeutic and preventive reagents are still suboptimal. Various model systems are used for the development of such reagents in which scopolamine is one of the favorable pharmacological tools widely applied. Loganin is a major iridoid glycoside obtained from Corni fructus (Cornusofficinalis et Zucc) and demonstrated to have anti-inflammatory, anti-tumor and osteoporosis prevention effects. It has also been found to attenuate Aβ-induced inflammatory reactions and ameliorate memory deficits induced by scopolamine. However, there has been limited information available on how loganin affects learning and memory both electrophysiologically and behaviorally. To assess its effect on learning and memory, we investigated the influence of acute loganin administration on long-term potentiation (LTP) using organotypic cultured hippocampal tissues. In addition, we measured the effects of loganin on the behavior performance related to avoidance memory, short-term spatial navigation memory and long-term spatial learning and memory in the passive avoidance, Y-maze, and Morris water maze learning paradigms, respectively. Loganin dose-dependently increased the total activity of fEPSP after high frequency stimulation and attenuated scopolamine-induced blockade of fEPSP in the hippocampal CA1 area. In accordance with these findings, loganin behaviorally attenuated scopolamine-induced shortening of step-through latency in the passive avoidance test, reduced the percent alternation in the Y-maze, and increased memory retention in the Morris water maze test. These results indicate that loganin can effectively block cholinergic muscarinic receptor blockade -induced deterioration of LTP and memory related behavioral performance. Based on these findings, loganin may aid in the prevention and treatment of Alzheimer's disease and learning and memory-deficit disorders in the future.
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Affiliation(s)
- Eun-Sang Hwang
- Department of East-West Medical Science, Graduate School of East-West Medical Science, Kyung Hee University, Deogyeong-daero, Giheung-gu, Yongin-si, Gyeonggi-do 446-701, Republic of Korea
| | - Hyun-Bum Kim
- Department of East-West Medical Science, Graduate School of East-West Medical Science, Kyung Hee University, Deogyeong-daero, Giheung-gu, Yongin-si, Gyeonggi-do 446-701, Republic of Korea
| | - Seok Lee
- Department of East-West Medical Science, Graduate School of East-West Medical Science, Kyung Hee University, Deogyeong-daero, Giheung-gu, Yongin-si, Gyeonggi-do 446-701, Republic of Korea
| | - Min-Ji Kim
- Department of East-West Medicine, Graduate School of East-West Medical Science, Kyung Hee University, Deogyeong-daero, Giheung-gu, Yongin 446-701, Republic of Korea
| | - Sung-Ok Lee
- Department of Oriental Medicinal Materials and Processing, College of Life Science, Kyung Hee University, Deogyeong-daero, Giheung-gu, Yongin-si, Gyeonggi-do 446-701, Republic of Korea
| | - Seung-Moo Han
- Department of Biomedical Engineering, Kyung Hee University, 1 Seocheon-dong, Giheung-gu, Yongin 446-701, Republic of Korea
| | - Sungho Maeng
- Department of East-West Medicine, Graduate School of East-West Medical Science, Kyung Hee University, Deogyeong-daero, Giheung-gu, Yongin 446-701, Republic of Korea.
| | - Ji-Ho Park
- Department of East-West Medicine, Graduate School of East-West Medical Science, Kyung Hee University, Deogyeong-daero, Giheung-gu, Yongin 446-701, Republic of Korea.
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Xu W, Yang L, Li J. Protection against β-amyloid-induced neurotoxicity by naturally occurring Z-ligustilide through the concurrent regulation of p38 and PI3-K/Akt pathways. Neurochem Int 2016; 100:44-51. [PMID: 27580711 DOI: 10.1016/j.neuint.2016.08.012] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2016] [Revised: 08/12/2016] [Accepted: 08/26/2016] [Indexed: 01/06/2023]
Abstract
Alzheimer's disease (AD) is primarily characterized by the progressive loss of functional neurons in the brain. Therefore, compounds with neuroprotective property may have therapeutic value in treating AD. Z-ligustilide (Z-LIG) is an essential oil originally isolated from umbelliferous plants. In the current study, the neuroprotective effects and underlying mechanisms of Z-LIG against fibrillar aggregates of Aβ25-35 and Aβ1-42-induced neurotoxicity were investigated in both SH-SY5Y cells and differentiated PC12 cells. Z-LIG at 1-30 μM provided an effective neuroprotection, as evidenced by the increase in cell viability, as well as the decrease in LDH release and intracellular accumulation of reactive oxygen species. Additionally, Z-LIG markedly blocked Aβ fibrils-induced condensed nuclei and sub-G1 accumulation suggestive of apoptosis. Furthermore, Z-LIG substantially reversed the activation of phosphorylated p38 and the inhibition of phosphorylated Akt caused by Aβ25-35. LY294002, the specific inhibitor of PI3-K, significantly abrogated the protein expression of up-regulated phosphorylated Akt offered by Z-LIG. Most importantly, siRNA-mediated knockdown of PI3-K and p38 significantly abolished the neuroprotective effects of Z-LIG. The results taken together indicate that Z-LIG protects against Aβ fibrils-induced neurotoxicity possibly through the inhibition of p38 and activation of PI3-K/Akt signaling pathways concurrently. Z-LIG might be a potential candidate for further preclinical study aimed at the prevention and treatment of AD.
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Affiliation(s)
- Wei Xu
- Department of Neurology, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, China.
| | - Li Yang
- Department of Neurology, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, China
| | - Ji Li
- Department of Neurology, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, China
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Li XH, Deng YY, Li F, Shi JS, Gong QH. Neuroprotective effects of sodium hydrosulfide against β-amyloid-induced neurotoxicity. Int J Mol Med 2016; 38:1152-60. [PMID: 27511125 PMCID: PMC5029968 DOI: 10.3892/ijmm.2016.2701] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2015] [Accepted: 07/28/2016] [Indexed: 12/27/2022] Open
Abstract
Alzheimer's disease (AD) is known to be caused by the accumulation of amyloid-β peptide (Aβ). The accumulation of Aβ has been shown to cause learning and memory impairment in rats, and it has been shown that hydrogen sulfide donors, such as sodium hydrosulfide (NaHS) can attenuate these effects. However, the underlying mechanisms have not yet been fully eludicated. This study was designed to investigate whether NaHS attenuates the inflammation and apoptosis induced by Aβ. We demonstrated that NaHS attenuated Aβ25–35-induced neuronal reduction and apoptosis, and inhibited the activation of pro-caspase-3. It also decreased the protein expresion of phosphodiesterase 5 (PDE5) in the hippocampus of the rats. In addition, NaHS upregulated the expression of peroxisome proliferator-activated receptor (PPAR)-α and PPAR-γ, but it did not affect the expression of PPAR-β. Moreover, the Aβ25–35-exposed rats exhibited a decrease in IκB-α degradation and an increase in nuclear factor-κB (NF-κB) p65 phosphorylation levels, whereas these effects were attenuated by NaHS. Our data suggest that NaHS prevents Aβ-induced neurotoxicity via the upregulation of PPAR-α and PPAR-γ and the inhibition of PDE5. Hence NaHS may prove to be beneficial in the treatment of AD.
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Affiliation(s)
- Xiao-Hui Li
- Department of Pharmacology and Key Laboratory of Basic Pharmacology of Ministry of Education, Zunyi Medical University, Zunyi, Guizhou 563000, P.R. China
| | - Yuan-Yuan Deng
- Department of Pharmacology and Key Laboratory of Basic Pharmacology of Ministry of Education, Zunyi Medical University, Zunyi, Guizhou 563000, P.R. China
| | - Fei Li
- Department of Pharmacology and Key Laboratory of Basic Pharmacology of Ministry of Education, Zunyi Medical University, Zunyi, Guizhou 563000, P.R. China
| | - Jing-Shan Shi
- Department of Pharmacology and Key Laboratory of Basic Pharmacology of Ministry of Education, Zunyi Medical University, Zunyi, Guizhou 563000, P.R. China
| | - Qi-Hai Gong
- Department of Pharmacology and Key Laboratory of Basic Pharmacology of Ministry of Education, Zunyi Medical University, Zunyi, Guizhou 563000, P.R. China
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35
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Ji X, Liu H, An C, Wang Y, Zhao H, Zhang Q, Li M, Qi F, Chen Z, Wang X, Wang L. You-Gui pills promote nerve regeneration by regulating netrin1, DCC and Rho family GTPases RhoA, Racl, Cdc42 in C57BL/6 mice with experimental autoimmune encephalomyelitis. JOURNAL OF ETHNOPHARMACOLOGY 2016; 187:123-133. [PMID: 27106785 DOI: 10.1016/j.jep.2016.04.025] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2015] [Revised: 03/14/2016] [Accepted: 04/19/2016] [Indexed: 06/05/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE You-Gui pills (YGPs) are an effective traditional Chinese formula being used clinically for the treatment of multiple sclerosis (MS). Previous studies demonstrated that YGPs exerted the potent neuroprotective effects in murine models of experimental autoimmune encephalomyelitis (EAE), which is an equivalent animal model for multiple sclerosis (MS). However, the mechanism of YGPs functions remained unclear. AIM OF THIS STUDY The aim of this study was to evaluate the therapeutic effect of YGPs in MOG35-55-induced EAE mice and to further elucidate the underlying molecular mechanism. METHODS Female C57BL/6 mice were divided into six groups, including the non-treated EAE model, prednisone acetate- and 1.2, 2.4 or 4.8g/kg YGPs-treated EAE groups, and a normal control group. The EAE model was established by injecting the mice subcutaneously with MOG35-55 antigen. The body weights were measured and the neurological functions were scored in each group. The pathology and morphology of the brain and spinal cord was examined. The expression of MAP-2 was detected by immunofluorescent staining. The levels of netrin1, DCC, RhoA, Rac1, and Cdc42 were assayed by immunohistochemistry, qRT-PCR and Western blot on day 40 post-immunization (PI). RESULTS YGPs treatments significantly reduced neurological function scores in EAE mice, where the inflammatory infiltration was reduced and the axon and myelin damage in both brain and spinal cord was alleviated. In the brain and spinal cord tissues, YGPs increased the expression of neuronal factors MAP-2, netrin1 and DCC. The expression of Rac1 and Cdc42 were increased, while RhoA was reduced following YGPs treatments. CONCLUSION Our results demonstrated that YGPs exhibited a neuroprotective effect on promoting nerve regeneration at the brain and spinal cord in EAE mice induced by MOG35-55. Netrin1, DCC and the Rho family GTPases of RhoA, Racl, Cdc42 were involved in mediating the effects of YGPs on nerve regeneration.
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MESH Headings
- Animals
- Brain/drug effects
- Brain/pathology
- Brain/ultrastructure
- DCC Receptor
- Drugs, Chinese Herbal/pharmacology
- Drugs, Chinese Herbal/therapeutic use
- Encephalomyelitis, Autoimmune, Experimental/drug therapy
- Encephalomyelitis, Autoimmune, Experimental/metabolism
- Encephalomyelitis, Autoimmune, Experimental/pathology
- Female
- Mice, Inbred C57BL
- Microscopy, Electron, Transmission
- Myelin-Oligodendrocyte Glycoprotein
- Nerve Growth Factors/genetics
- Nerve Growth Factors/metabolism
- Nerve Regeneration/drug effects
- Netrin-1
- Neuroprotective Agents/pharmacology
- Neuroprotective Agents/therapeutic use
- Peptide Fragments
- Phytotherapy
- RNA, Messenger/metabolism
- Receptors, Cell Surface/genetics
- Receptors, Cell Surface/metabolism
- Spinal Cord/drug effects
- Spinal Cord/pathology
- Spinal Cord/ultrastructure
- Tablets
- Tumor Suppressor Proteins/genetics
- Tumor Suppressor Proteins/metabolism
- rho GTP-Binding Proteins/genetics
- rho GTP-Binding Proteins/metabolism
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Affiliation(s)
- Xiaomin Ji
- School of Traditional Chinese Medicine, Beijing Key Lab of TCM Collateral Disease Theory Research, Capital Medical University, Beijing 100069, PR China
| | - Haolong Liu
- School of Traditional Chinese Medicine, Beijing Key Lab of TCM Collateral Disease Theory Research, Capital Medical University, Beijing 100069, PR China
| | - Chen An
- School of Traditional Chinese Medicine, Beijing Key Lab of TCM Collateral Disease Theory Research, Capital Medical University, Beijing 100069, PR China
| | - Yongqiang Wang
- School of Traditional Chinese Medicine, Beijing Key Lab of TCM Collateral Disease Theory Research, Capital Medical University, Beijing 100069, PR China
| | - Hui Zhao
- School of Traditional Chinese Medicine, Beijing Key Lab of TCM Collateral Disease Theory Research, Capital Medical University, Beijing 100069, PR China
| | - Qiuxia Zhang
- School of Traditional Chinese Medicine, Beijing Key Lab of TCM Collateral Disease Theory Research, Capital Medical University, Beijing 100069, PR China
| | - Ming Li
- School of Traditional Chinese Medicine, Beijing Key Lab of TCM Collateral Disease Theory Research, Capital Medical University, Beijing 100069, PR China
| | - Fang Qi
- School of Traditional Chinese Medicine, Beijing Key Lab of TCM Collateral Disease Theory Research, Capital Medical University, Beijing 100069, PR China
| | - Zhenzhen Chen
- School of Traditional Chinese Medicine, Beijing Key Lab of TCM Collateral Disease Theory Research, Capital Medical University, Beijing 100069, PR China
| | - Xiujuan Wang
- School of Traditional Chinese Medicine, Beijing Key Lab of TCM Collateral Disease Theory Research, Capital Medical University, Beijing 100069, PR China.
| | - Lei Wang
- School of Traditional Chinese Medicine, Beijing Key Lab of TCM Collateral Disease Theory Research, Capital Medical University, Beijing 100069, PR China.
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36
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Kinetics and molecular docking studies of loganin, morroniside and 7-O-galloyl-d-sedoheptulose derived from Corni fructus as cholinesterase and β-secretase 1 inhibitors. Arch Pharm Res 2016; 39:794-805. [DOI: 10.1007/s12272-016-0745-5] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2015] [Accepted: 04/17/2016] [Indexed: 12/11/2022]
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37
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Saikosaponin-D Reduces H 2O 2-Induced PC12 Cell Apoptosis by Removing ROS and Blocking MAPK-Dependent Oxidative Damage. Cell Mol Neurobiol 2016; 36:1365-1375. [PMID: 26961382 DOI: 10.1007/s10571-016-0336-5] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2015] [Accepted: 01/25/2016] [Indexed: 10/22/2022]
Abstract
Neuronal oxidative stress (OS) injury has been proven to be associated with many neurodegenerative diseases, and thus, antioxidation treatment is an effective method for treating these diseases. Saikosaponin-D (SSD) is a sapogenin extracted from Bupleurum falcatum and has been shown to have many pharmacological activities. The main purpose of this study was to investigate whether and how SSD protects PC12 cells from H2O2-induced apoptosis. The non-toxic level of SSD significantly mitigated the H2O2-induced decrease in cell viability, reduced the apoptosis rate, improved the nuclear morphology, and reduced caspase-3 activation and poly ADP-ribose polymerase (PARP) cleavage. Additionally, exogenous H2O2-induced apoptosis by damaging the intracellular antioxidation system. SSD significantly slowed the H2O2-induced release of malonic dialdehyde (MDA) and lactate dehydrogenase and increased the activity of superoxide dismutase (SOD) and the total antioxidant capacity, thereby reducing apoptosis. More importantly, SSD effectively blocked H2O2-induced phosphorylation of extracellular-regulated kinase (ERK), c-Jun N-terminal kinase (JNK), and p38 mitogen-activated protein kinase (p38MAPK), and specific inhibitors of ERK, JNK, and p38-reduced OS injury and apoptosis, suggesting that SSD reduces OS injury and apoptosis via MAPK signalling pathways. Finally, we confirmed that SSD significantly reduced H2O2-induced reactive oxygen species (ROS) accumulation, and the ROS inhibitor blocked the apoptosis caused by MAPK activation and cellular oxidative damage. In short, our study confirmed that SSD reduces H2O2-induced PC12 cell apoptosis by removing ROS and blocking MAPK-dependent oxidative damage.
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Fu Z, Yang J, Wei Y, Li J. Effects of piceatannol and pterostilbene against β-amyloid-induced apoptosis on the PI3K/Akt/Bad signaling pathway in PC12 cells. Food Funct 2016; 7:1014-23. [DOI: 10.1039/c5fo01124h] [Citation(s) in RCA: 60] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Piceatannol and pterostilbene both showed protective effect against Aβ-induced apoptosis in PC12 cells, however, with different PI3K/Akt signaling pathways.
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Affiliation(s)
- Zheng Fu
- Center for Viticulture and Enology
- College of Food Science and Nutritional Engineering
- China Agricultural University
- Beijing 100083
- China
| | - Jiufang Yang
- Center for Viticulture and Enology
- College of Food Science and Nutritional Engineering
- China Agricultural University
- Beijing 100083
- China
| | - Yangji Wei
- Center for Viticulture and Enology
- College of Food Science and Nutritional Engineering
- China Agricultural University
- Beijing 100083
- China
| | - Jingming Li
- Center for Viticulture and Enology
- College of Food Science and Nutritional Engineering
- China Agricultural University
- Beijing 100083
- China
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39
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Zheng Y, You F, Li Q, Chen J, Yang H. The effect of geniste on Aβ25–35-induced PC12 cell apoptosis through the JNK-dependent Fas pathway. Food Funct 2016; 7:4702-4708. [DOI: 10.1039/c6fo00071a] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The β-amyloid protein (Aβ) is considered to be the key factor for inducing Alzheimer's disease (AD).
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Affiliation(s)
- Yaojie Zheng
- Institute of Basic Medical Sciences
- Guangdong Pharmaceutical University
- Guangzhou
- China
| | - Fuling You
- Institute of Basic Medical Sciences
- Guangdong Pharmaceutical University
- Guangzhou
- China
| | - Qiao Li
- Institute of Basic Medical Sciences
- Guangdong Pharmaceutical University
- Guangzhou
- China
| | - Jingrong Chen
- Institute of Basic Medical Sciences
- Guangdong Pharmaceutical University
- Guangzhou
- China
| | - Hong Yang
- Institute of Basic Medical Sciences
- Guangdong Pharmaceutical University
- Guangzhou
- China
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