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Aladag T, Acar G, Mogulkoc R, Baltaci AK. Improvement of neuronal and cognitive functions following treatment with 3',4' dihydroxyflavonol in experimental focal cerebral ischemia-reperfusion injury in rats. Eur J Pharmacol 2024; 976:176670. [PMID: 38795755 DOI: 10.1016/j.ejphar.2024.176670] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2024] [Revised: 05/22/2024] [Accepted: 05/23/2024] [Indexed: 05/28/2024]
Abstract
INTRODUCTION Ischemia/reperfusion is a pathological condition by the restoration of perfusion and oxygenation following a period of restricted blood flow to an organ. To address existing uncertainty in the literature regarding the effects of 3', 4'-dihydroxy flavonol (DiOHF) on cerebral ischemia/reperfusion injury, our study aims to investigate the impact of DiOHF on neurological parameters, apoptosis (Caspase-3), aquaporin 4 (AQP4), and interleukin-10 (IL-10) levels in an experimental rat model of brain ischemia-reperfusion injury. MATERIALS/METHODS A total of 28 Wistar-albino male rats were used in this study. Experimental groups were formed as 1-Control, 2-Sham, 3-Ischemia-reperfusion, 4-Ischemia-reperfusion + DiOHF (10 mg/kg). The animals were anaesthetized, and the carotid arteries were ligated (ischemia) for 30 min, followed by reperfusion for 30 min. Following reperfusion, DiOHF was administered intraperitoneally to the animals at a dose of 10 mg/kg for 1 week. During the one-week period neurological scores and new object recognition tests were performed. Then, caspase 3 and AQP4 levels were determined by PCR method and IL-10 by ELISA method in hippocampus tissue samples taken from animals sacrificed under anaesthesia. RESULTS Brain ischemia reperfusion significantly increased both caspase 3 and AQP4 values in the hippocampus tissue, while decreasing IL-10 levels. However, 1-week DiOHF supplementation significantly suppressed increased caspase 3 and AQP4 levels and increased IL-10 values. While I/R also increased neurological score values, it suppressed the ability to recognize new objects, and the administered treatment effectively ameliorated the adverse effects observed, resulting in a positive outcome. CONCLUSIONS The results of the study show that brain ischemia caused by bilateral carotid occlusion in rats and subsequent reperfusion causes tissue damage, but 1-week DiOHF application has a healing effect on both hippocampus tissue and neurological parameters.
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Affiliation(s)
- Tugce Aladag
- Selcuk University, Medical Faculty, Department of Physiology, Konya, Turkey
| | - Gozde Acar
- Selcuk University, Medical Faculty, Department of Physiology, Konya, Turkey
| | - Rasim Mogulkoc
- Selcuk University, Medical Faculty, Department of Physiology, Konya, Turkey.
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Shan X, Tao W, Li J, Tao W, Li D, Zhou L, Yang X, Dong C, Huang S, Chu X, Zhang C. Kai-Xin-San ameliorates Alzheimer's disease-related neuropathology and cognitive impairment in APP/PS1 mice via the mitochondrial autophagy-NLRP3 inflammasome pathway. JOURNAL OF ETHNOPHARMACOLOGY 2024; 329:118145. [PMID: 38582153 DOI: 10.1016/j.jep.2024.118145] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2024] [Revised: 03/26/2024] [Accepted: 04/01/2024] [Indexed: 04/08/2024]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Kai-Xin-San (KXS) is a classic famous prescription that has been utilized for centuries to address dementia. New investigations have shown that the anti-dementia effect of KXS is connected with improved neuroinflammation. Nevertheless, the underlying mechanism is not well elucidated. AIM OF THE STUDY We propose to discover the ameliorative impact of KXS on Alzheimer's disease (AD) and its regulatory role on the mitochondrial autophagy-nod-like receptor protein 3 (NLRP3) inflammasome pathway. MATERIALS AND METHODS The Y maze, Morris water maze, and new objection recognition tests were applied to ascertain the spatial learning and memory capacities of amyloid precursor protein/presenilin 1 (APP/PS1) mice after KXS-treatment. Meanwhile, the biochemical indexes of the hippocampus were detected by reagent kits. The pathological alterations and mitochondrial autophagy in the mice' hippocampus were detected utilizing hematoxylin and eosin (H&E), immunohistochemistry, immunofluorescence staining, and transmission electron microscopy. Besides, the PTEN-induced putative kinase 1 (PINK1)/Parkin and NLRP3 inflammasome pathways protein expressions were determined employing the immunoblot analysis. RESULTS The results of behavioral tests showed that KXS significantly enhanced the AD mice' spatial learning and memory capacities. Furthermore, KXS reversed the biochemical index levels and reduced amyloid-β protein deposition in AD mice brains. Besides, H&E staining showed that KXS remarkably ameliorated the neuronal damage in AD mice. Concurrently, the results of transmission electron microscopy suggest that KXS ameliorated the mitochondrial damage in microglia and promoted mitochondrial autophagy. Moreover, the immunofluorescence outcomes exhibited that KXS promoted the expression of protein 1 light chain 3B (LC3B) associated with microtubule and the generation of autophagic flux. Notably, the immunofluorescence co-localization results confirmed the presence of mitochondrial autophagy in microglia. Finally, KXS promoted the protein expressions of the PINK1/Parkin pathway and reduced the activation of NLRP3 inflammasome. Most importantly, these beneficial effects of KXS were attenuated by the mitochondrial autophagy inhibitor chloroquine. CONCLUSION KXS ameliorates AD-related neuropathology and cognitive impairment in APP/PS1 mice by enhancing the mitochondrial autophagy and suppressing the NLRP3 inflammasome pathway.
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Affiliation(s)
- Xiaoxiao Shan
- Anhui Province Key Laboratory of Pharmaceutical Preparation Technology and Application, School of Pharmacy, Anhui University of Chinese Medicine, Hefei, 230012, China; Center for Xin'an Medicine and Modernization of Traditional Chinese Medicine of IHM, Grand Health Research Institute of Hefei Comprehensive National Science Center, Anhui University of Chinese Medicine, Hefei, 230012, China; Engineering Technology Research Center of Modernized Pharmaceutics, Anhui Education Department (AUCM), Hefei, 230012, Anhui, China; Anhui Genuine Chinese Medicinal Materials Quality Improvement Collaborative Innovation Center, Anhui Academy of Chinese Medicine, China.
| | - Wenwen Tao
- Anhui Province Key Laboratory of Pharmaceutical Preparation Technology and Application, School of Pharmacy, Anhui University of Chinese Medicine, Hefei, 230012, China; Center for Xin'an Medicine and Modernization of Traditional Chinese Medicine of IHM, Grand Health Research Institute of Hefei Comprehensive National Science Center, Anhui University of Chinese Medicine, Hefei, 230012, China; Engineering Technology Research Center of Modernized Pharmaceutics, Anhui Education Department (AUCM), Hefei, 230012, Anhui, China; Anhui Genuine Chinese Medicinal Materials Quality Improvement Collaborative Innovation Center, Anhui Academy of Chinese Medicine, China.
| | - Junying Li
- Anhui Province Key Laboratory of Pharmaceutical Preparation Technology and Application, School of Pharmacy, Anhui University of Chinese Medicine, Hefei, 230012, China; Center for Xin'an Medicine and Modernization of Traditional Chinese Medicine of IHM, Grand Health Research Institute of Hefei Comprehensive National Science Center, Anhui University of Chinese Medicine, Hefei, 230012, China; Engineering Technology Research Center of Modernized Pharmaceutics, Anhui Education Department (AUCM), Hefei, 230012, Anhui, China; Anhui Genuine Chinese Medicinal Materials Quality Improvement Collaborative Innovation Center, Anhui Academy of Chinese Medicine, China.
| | - Wenkang Tao
- Anhui Province Key Laboratory of Pharmaceutical Preparation Technology and Application, School of Pharmacy, Anhui University of Chinese Medicine, Hefei, 230012, China; Center for Xin'an Medicine and Modernization of Traditional Chinese Medicine of IHM, Grand Health Research Institute of Hefei Comprehensive National Science Center, Anhui University of Chinese Medicine, Hefei, 230012, China; Engineering Technology Research Center of Modernized Pharmaceutics, Anhui Education Department (AUCM), Hefei, 230012, Anhui, China; Anhui Genuine Chinese Medicinal Materials Quality Improvement Collaborative Innovation Center, Anhui Academy of Chinese Medicine, China; Hefei Innovation Pharmaceutical Technology Co.ltd., Hefei, 230031, China.
| | - Dawei Li
- Anhui Province Key Laboratory of Pharmaceutical Preparation Technology and Application, School of Pharmacy, Anhui University of Chinese Medicine, Hefei, 230012, China; Center for Xin'an Medicine and Modernization of Traditional Chinese Medicine of IHM, Grand Health Research Institute of Hefei Comprehensive National Science Center, Anhui University of Chinese Medicine, Hefei, 230012, China; Engineering Technology Research Center of Modernized Pharmaceutics, Anhui Education Department (AUCM), Hefei, 230012, Anhui, China; Anhui Genuine Chinese Medicinal Materials Quality Improvement Collaborative Innovation Center, Anhui Academy of Chinese Medicine, China; Hefei Innovation Pharmaceutical Technology Co.ltd., Hefei, 230031, China.
| | - Lele Zhou
- Anhui Province Key Laboratory of Pharmaceutical Preparation Technology and Application, School of Pharmacy, Anhui University of Chinese Medicine, Hefei, 230012, China; Center for Xin'an Medicine and Modernization of Traditional Chinese Medicine of IHM, Grand Health Research Institute of Hefei Comprehensive National Science Center, Anhui University of Chinese Medicine, Hefei, 230012, China; Engineering Technology Research Center of Modernized Pharmaceutics, Anhui Education Department (AUCM), Hefei, 230012, Anhui, China; Anhui Genuine Chinese Medicinal Materials Quality Improvement Collaborative Innovation Center, Anhui Academy of Chinese Medicine, China; Hefei Innovation Pharmaceutical Technology Co.ltd., Hefei, 230031, China.
| | - Xuan Yang
- Anhui Province Key Laboratory of Pharmaceutical Preparation Technology and Application, School of Pharmacy, Anhui University of Chinese Medicine, Hefei, 230012, China; Center for Xin'an Medicine and Modernization of Traditional Chinese Medicine of IHM, Grand Health Research Institute of Hefei Comprehensive National Science Center, Anhui University of Chinese Medicine, Hefei, 230012, China; Engineering Technology Research Center of Modernized Pharmaceutics, Anhui Education Department (AUCM), Hefei, 230012, Anhui, China; Anhui Genuine Chinese Medicinal Materials Quality Improvement Collaborative Innovation Center, Anhui Academy of Chinese Medicine, China; Hefei Innovation Pharmaceutical Technology Co.ltd., Hefei, 230031, China.
| | - Chong Dong
- Hefei Innovation Pharmaceutical Technology Co.ltd., Hefei, 230031, China.
| | - Shunwang Huang
- Hefei Innovation Pharmaceutical Technology Co.ltd., Hefei, 230031, China.
| | - Xiaoqin Chu
- Anhui Province Key Laboratory of Pharmaceutical Preparation Technology and Application, School of Pharmacy, Anhui University of Chinese Medicine, Hefei, 230012, China; Center for Xin'an Medicine and Modernization of Traditional Chinese Medicine of IHM, Grand Health Research Institute of Hefei Comprehensive National Science Center, Anhui University of Chinese Medicine, Hefei, 230012, China; Engineering Technology Research Center of Modernized Pharmaceutics, Anhui Education Department (AUCM), Hefei, 230012, Anhui, China; Anhui Genuine Chinese Medicinal Materials Quality Improvement Collaborative Innovation Center, Anhui Academy of Chinese Medicine, China.
| | - Caiyun Zhang
- Anhui Province Key Laboratory of Pharmaceutical Preparation Technology and Application, School of Pharmacy, Anhui University of Chinese Medicine, Hefei, 230012, China; Center for Xin'an Medicine and Modernization of Traditional Chinese Medicine of IHM, Grand Health Research Institute of Hefei Comprehensive National Science Center, Anhui University of Chinese Medicine, Hefei, 230012, China; Engineering Technology Research Center of Modernized Pharmaceutics, Anhui Education Department (AUCM), Hefei, 230012, Anhui, China; Anhui Genuine Chinese Medicinal Materials Quality Improvement Collaborative Innovation Center, Anhui Academy of Chinese Medicine, China.
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Chuang YT, Yen CY, Tang JY, Chang FR, Tsai YH, Wu KC, Chien TM, Chang HW. Protein phosphatase 2A modulation and connection with miRNAs and natural products. ENVIRONMENTAL TOXICOLOGY 2024; 39:3612-3627. [PMID: 38491812 DOI: 10.1002/tox.24199] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/31/2023] [Revised: 01/28/2024] [Accepted: 02/10/2024] [Indexed: 03/18/2024]
Abstract
Protein phosphatase 2A (PP2A), a heterotrimeric holoenzyme (scaffolding, catalytic, and regulatory subunits), regulates dephosphorylation for more than half of serine/threonine phosphosites and exhibits diverse cellular functions. Although several studies on natural products and miRNAs have emphasized their impacts on PP2A regulation, their connections lack systemic organization. Moreover, only part of the PP2A family has been investigated. This review focuses on the PP2A-modulating effects of natural products and miRNAs' interactions with potential PP2A targets in cancer and non-cancer cells. PP2A-modulating natural products and miRNAs were retrieved through a literature search. Utilizing the miRDB database, potential PP2A targets of these PP2A-modulating miRNAs for the whole set (17 members) of the PP2A family were retrieved. Finally, PP2A-modulating natural products and miRNAs were linked via a literature search. This review provides systemic directions for assessing natural products and miRNAs relating to the PP2A-modulating functions in cancer and disease treatments.
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Affiliation(s)
- Ya-Ting Chuang
- Department of Biomedical Science and Environmental Biology, PhD Program in Life Sciences, College of Life Science, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Ching-Yu Yen
- School of Dentistry, Taipei Medical University, Taipei, Taiwan
- Department of Oral and Maxillofacial Surgery, Chi-Mei Medical Center, Tainan, Taiwan
| | - Jen-Yang Tang
- School of Post-Baccalaureate Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
- Department of Radiation Oncology, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Fang-Rong Chang
- Graduate Institute of Natural Products, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Yi-Hong Tsai
- Department of Pharmacy and Master Program, College of Pharmacy and Health Care, Tajen University, Pingtung, Taiwan
| | - Kuo-Chuan Wu
- Department of Computer Science and Information Engineering, National Pingtung University, Pingtung, Taiwan
| | - Tsu-Ming Chien
- Department of Urology, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
| | - Hsueh-Wei Chang
- Department of Biomedical Science and Environmental Biology, PhD Program in Life Sciences, College of Life Science, Kaohsiung Medical University, Kaohsiung, Taiwan
- Center for Cancer Research, Kaohsiung Medical University, Kaohsiung, Taiwan
- Department of Medical Research, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
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Han T, Xu Y, Sun L, Hashimoto M, Wei J. Microglial response to aging and neuroinflammation in the development of neurodegenerative diseases. Neural Regen Res 2024; 19:1241-1248. [PMID: 37905870 DOI: 10.4103/1673-5374.385845] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Accepted: 07/17/2023] [Indexed: 11/02/2023] Open
Abstract
ABSTRACT Cellular senescence and chronic inflammation in response to aging are considered to be indicators of brain aging; they have a great impact on the aging process and are the main risk factors for neurodegeneration. Reviewing the microglial response to aging and neuroinflammation in neurodegenerative diseases will help understand the importance of microglia in neurodegenerative diseases. This review describes the origin and function of microglia and focuses on the role of different states of the microglial response to aging and chronic inflammation on the occurrence and development of neurodegenerative diseases, including Alzheimer's disease, Huntington's chorea, and Parkinson's disease. This review also describes the potential benefits of treating neurodegenerative diseases by modulating changes in microglial states. Therefore, inducing a shift from the neurotoxic to neuroprotective microglial state in neurodegenerative diseases induced by aging and chronic inflammation holds promise for the treatment of neurodegenerative diseases in the future.
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Affiliation(s)
- Tingting Han
- Institute for Brain Sciences Research, School of Life Sciences, Henan University, Kaifeng, Henan Province, China
| | - Yuxiang Xu
- Institute for Brain Sciences Research, School of Life Sciences, Henan University, Kaifeng, Henan Province, China
| | - Lin Sun
- Institute for Brain Sciences Research, School of Life Sciences, Henan University, Kaifeng, Henan Province, China
- College of Chemistry and Molecular Sciences, Henan University, Kaifeng, Henan Province, China
| | - Makoto Hashimoto
- Department of Basic Technology, Tokyo Metropolitan Institute of Medical Science, Tokyo, Japan
| | - Jianshe Wei
- Institute for Brain Sciences Research, School of Life Sciences, Henan University, Kaifeng, Henan Province, China
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Lin P, Lin C, Diao L. RBM3 Ameliorates Acute Brain Injury-induced Inflammation and Oxidative Stress by Stabilizing GAS6 mRNA Through Nrf2 Signaling Pathway. Neuroscience 2024; 547:74-87. [PMID: 38555015 DOI: 10.1016/j.neuroscience.2024.03.028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2024] [Revised: 03/21/2024] [Accepted: 03/26/2024] [Indexed: 04/02/2024]
Abstract
RNA-binding motif protein 3 (RBM3), as a cold-inducible protein, exhibits neuroprotective function in brain disorders. This study was conducted to investigate the effects of RBM3 on acute brain injury (ABI) and its underlying mechanism. The cerebral injury (CI) rat model and oxygen-glucose deprivation (OGD) cell model were established. The neurological severity score, wire-grip score, morris water maze test, and Y-maze test were used to detect the neurological damage, vestibular motor, learning, and memory functions. Cerebral injury, apoptosis, oxidative stress, and inflammatory level were evaluated by hematoxylin-eosin and TUNEL staining and specific kits. Flow cytometry was used to analyze the apoptosis rate. The relationship between RBM3 and growth arrest specific (GAS) 6 was analyzed by RNA immunoprecipitation assay. The results indicated that RBM3 recovered of neurological function and behaviour impairment of CI rats. Additionally, RBM3 reversed the increased oxidative stress, inflammatory level, and apoptosis induced by CI and OGD. RBM3 interacted with GAS6 to activate the Nrf2 signaling pathway, thus playing neuroprotection on ABI. Besides, the results of RBM3 treatment were similar to those of mild hypothermia treatment. In summary, RBM3 exerted neuroprotection and ameliorated inflammatory levels and oxidative stress by stabilizing GAS6 mRNA through the Nrf2 signaling pathway, suggesting that RBM3 might be a potential therapeutic candidate for treating ABI.
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Affiliation(s)
- Pingqing Lin
- Department Of Emergency, Fuzhou Second General Hospital, Fuzhou City, Fujian Province 350007, China.
| | - Chengshi Lin
- Department Of Emergency, Fuzhou Second General Hospital, Fuzhou City, Fujian Province 350007, China
| | - Liangbiao Diao
- Department Of Nephrology, Fuzhou Second General Hospital, Fuzhou City, Fujian Province 350007, China
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Zhang L, Cao K, Xie J, Liang X, Gong H, Luo Q, Luo H. Aβ 42 and ROS dual-targeted multifunctional nanocomposite for combination therapy of Alzheimer's disease. J Nanobiotechnology 2024; 22:278. [PMID: 38783363 PMCID: PMC11112798 DOI: 10.1186/s12951-024-02543-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2023] [Accepted: 05/09/2024] [Indexed: 05/25/2024] Open
Abstract
Amyloid-β (Aβ) readily misfolds into neurotoxic aggregates, generating high levels of reactive oxygen species (ROS), leading to progressive oxidative damage and ultimately cell death. Therefore, simultaneous inhibition of Aβ aggregation and scavenging of ROS may be a promising therapeutic strategy to alleviate Alzheimer's disease pathology. Based on the previously developed antibody 1F12 that targets all forms of Aβ42, we developed an Aβ42 and ROS dual-targeting nanocomposite using biodegradable mesoporous silica nanoparticles as carriers to load ultra-small cerium oxide nanocrystals (bMSNs@Ce-1F12). By modifying the brain-targeted rabies virus glycoprotein 29 (RVG29-bMSNs@Ce-1F12), this intelligent nanocomposite can efficiently target brain Aβ-rich regions. Combined with peripheral and central nervous system treatments, RVG29-bMSNs@Ce-1F12 can significantly alleviate AD symptoms by inhibiting Aβ42 misfolding, accelerating Aβ42 clearance, and scavenging ROS. Furthermore, this synergistic effect of ROS scavenging and Aβ clearance exhibited by this Aβ42 and ROS dual-targeted strategy also reduced the burden of hyperphosphorylated tau, alleviated glial cell activation, and ultimately improved cognitive function in APP/PS1 mice. Our findings indicate that RVG29-bMSNs@Ce-1F12 is a promising nanodrug that can facilitate multi-target treatment of AD.
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Affiliation(s)
- Liding Zhang
- State Key Laboratory of Digital Medical Engineering, Key Laboratory of Biomedical Engineering of Hainan Province, School of Biomedical Engineering, Hainan University, Haikou, 570228, China
| | - Kai Cao
- Britton Chance Center for Biomedical Photonics, Wuhan National Laboratory for Optoelectronics, MoE Key Laboratory for Biomedical Photonics, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Jun Xie
- Britton Chance Center for Biomedical Photonics, Wuhan National Laboratory for Optoelectronics, MoE Key Laboratory for Biomedical Photonics, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Xiaohan Liang
- Britton Chance Center for Biomedical Photonics, Wuhan National Laboratory for Optoelectronics, MoE Key Laboratory for Biomedical Photonics, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Hui Gong
- Britton Chance Center for Biomedical Photonics, Wuhan National Laboratory for Optoelectronics, MoE Key Laboratory for Biomedical Photonics, Huazhong University of Science and Technology, Wuhan, 430074, China
- Research Unit of Multimodal Cross Scale Neural Signal Detection and Imaging, Chinese Academy of Medical Sciences, HUST-Suzhou Institute for Brainsmatics, JITRI, Suzhou, 215123, China
| | - Qingming Luo
- State Key Laboratory of Digital Medical Engineering, Key Laboratory of Biomedical Engineering of Hainan Province, School of Biomedical Engineering, Hainan University, Haikou, 570228, China.
- Research Unit of Multimodal Cross Scale Neural Signal Detection and Imaging, Chinese Academy of Medical Sciences, HUST-Suzhou Institute for Brainsmatics, JITRI, Suzhou, 215123, China.
| | - Haiming Luo
- State Key Laboratory of Digital Medical Engineering, Key Laboratory of Biomedical Engineering of Hainan Province, School of Biomedical Engineering, Hainan University, Haikou, 570228, China.
- Britton Chance Center for Biomedical Photonics, Wuhan National Laboratory for Optoelectronics, MoE Key Laboratory for Biomedical Photonics, Huazhong University of Science and Technology, Wuhan, 430074, China.
- Research Unit of Multimodal Cross Scale Neural Signal Detection and Imaging, Chinese Academy of Medical Sciences, HUST-Suzhou Institute for Brainsmatics, JITRI, Suzhou, 215123, China.
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Liu C, Zhao Y, Zhao WJ. Positive Effect of 6-Gingerol on Functional Plasticity of Microglia in a rat Model of LPS-induced Depression. J Neuroimmune Pharmacol 2024; 19:20. [PMID: 38758335 DOI: 10.1007/s11481-024-10123-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2024] [Accepted: 05/09/2024] [Indexed: 05/18/2024]
Abstract
Neuroinflammation has emerged as a crucial factor in the development of depression. Despite the well-known anti-inflammatory properties of 6-gingerol, its potential impact on depression remains poorly understood. This study aimed to investigate the antidepressant effects of 6-gingerol by suppressing microglial activation. In vivo experiments were conducted to evaluate the effect of 6-gingerol on lipopolysaccharide (LPS)-induced behavioral changes and neuroinflammation in rat models. In vitro studies were performed to examine the neuroprotective properties of 6-gingerol against LPS-induced microglial activation. Furthermore, a co-culture system of microglia and neurons was established to assess the influence of 6-gingerol on the expression of synaptic-related proteins, namely synaptophysin (SYP) and postsynaptic density protein 95 (PSD95), which are influenced by microglial activation. In the in vivo experiments, administration of 6-gingerol effectively alleviated LPS-induced depressive behavior in rats. Moreover, it markedly suppressed the activation of rat prefrontal cortex (PFC) microglia induced by LPS and the activation of the NF-κB/NLRP3 inflammatory pathway, while also reducing the levels of inflammatory cytokines IL-1β and IL-18. In the in vitro experiments, 6-gingerol mitigated nuclear translocation of NF-κB p65, NLRP3 activation, and maturation of IL-1β and IL-18, all of which were induced by LPS. Furthermore, in the co-culture system of microglia and neurons, 6-gingerol effectively restored the decreased expression of SYP and PSD95. The findings of this study demonstrate the neuroprotective effects of 6-gingerol in the context of LPS-induced depression-like behavior. These effects are attributed to the inhibition of microglial hyperactivation through the suppression of the NF-κB/NLRP3 inflammatory pathway.
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Affiliation(s)
- Chong Liu
- Department of Cell Biology, Wuxi School of Medicine, Jiangnan University, 1800 Lihu Dadao, Binhu District, Wuxi, Jiangsu, 214122, P.R. China
| | - Yan Zhao
- College of Environmental Science and Engineering, Qingdao University, Qingdao, 266071, China
| | - Wei-Jiang Zhao
- Department of Cell Biology, Wuxi School of Medicine, Jiangnan University, 1800 Lihu Dadao, Binhu District, Wuxi, Jiangsu, 214122, P.R. China.
- Center for Neuroscience, Shantou University Medical College, Shantou, Guangdong, 515041, P.R. China.
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Tian J, Peng Q, Shen Y, Liu X, Li D, Li J, Guo S, Meng C, Xiao Y. Chondroitin sulphate modified MoS 2 nanoenzyme with multifunctional activities for treatment of Alzheimer's disease. Int J Biol Macromol 2024; 266:131425. [PMID: 38583830 DOI: 10.1016/j.ijbiomac.2024.131425] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2024] [Revised: 03/18/2024] [Accepted: 04/04/2024] [Indexed: 04/09/2024]
Abstract
Nano-MoS2 exhibit oxidoreductase-like activities, and has been shown to effectively eliminate excessive intracellular ROS and inhibit Aβ aggregation, thus demonstrating promising potential for anti-Alzheimer's disease (anti-AD) intervention. However, the low water dispersibility and high toxicity of nano-MoS2 limits its further application. In this study, we developed a chondroitin sulphate (CS)-modified MoS2 nanoenzyme (CS@MoS2) by harnessing the excellent biocompatibility of CS and the exceptional activities of nano-MoS2 to explore its potential in anti-AD research. Promisingly, CS@MoS2 significantly inhibited Aβ1-40 aggregation and prevented toxic injury in SH-SY5Y cells caused by Aβ1-40. In addition, CS@MoS2 protected these cells from oxidative stress damage by regulating ROS production, as well as promoting the activities of SOD and GSH-Px. CS@MoS2 also modulated the intracellular Ca2+ imbalance and downregulated Tau hyperphosphorylation by activating GSK-3β. CS@MoS2 suppressed p-NF-κB (p65) translocation to the nucleus by inhibiting MAPK phosphorylation, and modulated the expression of downstream anti- and proinflammatory cytokines. Owing to its multifunctional activities, CS@MoS2 effectively improved spatial learning, memory, and anxiety in D-gal/AlCl3-induced AD mice. Taken together, these results indicate that CS@MoS2 has significant potential for improving the therapeutic efficacy of the prevention and treatment of AD, while also presenting a novel framework for the application of nanoenzymes.
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Affiliation(s)
- Jialei Tian
- School of Pharmaceutical Sciences & Institute of Materia Medica, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan 250117, Shandong, China; Shandong Institute of Brain Science and Brain-inspired Research, Jinan 250117, Shandong, China
| | - Qian Peng
- School of Pharmaceutical Sciences & Institute of Materia Medica, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan 250117, Shandong, China; Shandong Institute of Brain Science and Brain-inspired Research, Jinan 250117, Shandong, China
| | - Yuzhen Shen
- School of Pharmaceutical Sciences & Institute of Materia Medica, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan 250117, Shandong, China; Shandong Institute of Brain Science and Brain-inspired Research, Jinan 250117, Shandong, China
| | - Xuan Liu
- Department of Hematology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, China
| | - Delong Li
- School of Pharmaceutical Sciences & Institute of Materia Medica, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan 250117, Shandong, China
| | - Jian Li
- School of Pharmaceutical Sciences & Institute of Materia Medica, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan 250117, Shandong, China; Shandong Institute of Brain Science and Brain-inspired Research, Jinan 250117, Shandong, China
| | - Shuyuan Guo
- School of Pharmaceutical Sciences & Institute of Materia Medica, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan 250117, Shandong, China; Shandong Institute of Brain Science and Brain-inspired Research, Jinan 250117, Shandong, China
| | - Caicai Meng
- The Second Affiliated Hospital, Shandong First Medical University and Shandong Academy of Medical Sciences, Taian 271000, Shandong, China.
| | - Yuliang Xiao
- The Second Affiliated Hospital, Shandong First Medical University and Shandong Academy of Medical Sciences, Taian 271000, Shandong, China.
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Yong YY, Yan L, Wang BD, Fan DS, Guo MS, Yu L, Wu JM, Qin DL, Law BYK, Wong VKW, Yu CL, Zhou XG, Wu AG. Penthorum chinense Pursh inhibits ferroptosis in cellular and Caenorhabditis elegans models of Alzheimer's disease. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2024; 127:155463. [PMID: 38452694 DOI: 10.1016/j.phymed.2024.155463] [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: 06/23/2023] [Revised: 01/31/2024] [Accepted: 02/15/2024] [Indexed: 03/09/2024]
Abstract
BACKGROUND Ferroptosis, a unique type of cell death triggered by iron-dependent lipid peroxidation, plays a critical role in the pathogenesis of Alzheimer's disease (AD), a debilitating condition marked by memory loss and cognitive impairment due to the accumulation of beta-amyloid (Aβ) and hyperphosphorylated Tau protein. Increasing evidence suggests that inhibitors of ferroptosis could be groundbreaking in the treatment of AD. METHOD In this study, we established in vitro ferroptosis using erastin-, RSL-3-, hemin-, and iFSP1-induced PC-12 cells. Using MTT along with Hoechst/PI staining, we assessed cell viability and death. To determine various aspects of ferroptosis, we employed fluorescence probes, including DCFDA, JC-1, C11 BODIPY, Mito-Tracker, and PGSK, to measure ROS production, mitochondrial membrane potential, lipid peroxidation, mitochondrial morphology, and intracellular iron levels. Additionally, Western blotting, biolayer interferometry technology, and shRNA were utilized to investigate the underlying molecular mechanisms. Furthermore, p-CAX APP Swe/Ind- and pRK5-EGFP-Tau P301L overexpressing PC-12 cells, along with Caenorhabditis elegans (C. elegans) strains CL4176, CL2331, and BR5270, were employed to examine ferroptosis in AD models. RESULTS Here, we conducted a screening of our natural medicine libraries and identified the ethanol extract of Penthorum chinense Pursh (PEE), particularly its ethyl acetate fraction (PEF), displayed inhibitory effects on ferroptosis in cells. Specifically, PEF inhibited the generation of ROS, lipid peroxidation, and intracellular iron levels. Furthermore, PEF demonstrated protective effects against H2O2-induced cell death, ROS production, and mitochondrial damage. Mechanistic investigations unveiled PEF's modulation of intracellular iron accumulation, GPX4 expression and activity, and FSP1 expression. In p-CAX APP Swe/Ind and pRK5-EGFP-Tau P301L overexpressing PC-12 cells, PEF significantly reduced cell death, as well as ROS and lipid peroxidase production. Moreover, PEF ameliorated paralysis and slowing rate in Aβ and Tau transgenic C. elegans models, while inhibiting ferroptosis, as evidenced by decreased DHE intensity, lipid peroxidation levels, iron accumulation, and expression of SOD-3 and gst-4. CONCLUSION Our findings highlight the suppressive effects of PEF on ferroptosis in AD cellular and C. elegans models. This study helps us better understand how ferroptosis affects AD and emphasizes the potential of PCP as a candidate for AD intervention.
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Affiliation(s)
- Yuan-Yuan Yong
- Sichuan Key Medical Laboratory of New Drug Discovery and Drugability Evaluation, Luzhou Key Laboratory of Activity Screening and Druggability Evaluation for Chinese Materia Medica, Key Laboratory of Medical Electrophysiology of Ministry of Education, School of Pharmacy, Southwest Medical University, Luzhou 646000, China
| | - Lu Yan
- Sichuan Key Medical Laboratory of New Drug Discovery and Drugability Evaluation, Luzhou Key Laboratory of Activity Screening and Druggability Evaluation for Chinese Materia Medica, Key Laboratory of Medical Electrophysiology of Ministry of Education, School of Pharmacy, Southwest Medical University, Luzhou 646000, China
| | - Bin-Ding Wang
- Sichuan Key Medical Laboratory of New Drug Discovery and Drugability Evaluation, Luzhou Key Laboratory of Activity Screening and Druggability Evaluation for Chinese Materia Medica, Key Laboratory of Medical Electrophysiology of Ministry of Education, School of Pharmacy, Southwest Medical University, Luzhou 646000, China
| | - Dong-Sheng Fan
- Department of Pharmacy, The First Affiliated Hospital of Guizhou University of Traditional Chinese Medicine, Gui Yang, 550000, China
| | - Min-Song Guo
- Sichuan Key Medical Laboratory of New Drug Discovery and Drugability Evaluation, Luzhou Key Laboratory of Activity Screening and Druggability Evaluation for Chinese Materia Medica, Key Laboratory of Medical Electrophysiology of Ministry of Education, School of Pharmacy, Southwest Medical University, Luzhou 646000, China
| | - Lu Yu
- Sichuan Key Medical Laboratory of New Drug Discovery and Drugability Evaluation, Luzhou Key Laboratory of Activity Screening and Druggability Evaluation for Chinese Materia Medica, Key Laboratory of Medical Electrophysiology of Ministry of Education, School of Pharmacy, Southwest Medical University, Luzhou 646000, China
| | - Jian-Ming Wu
- Sichuan Key Medical Laboratory of New Drug Discovery and Drugability Evaluation, Luzhou Key Laboratory of Activity Screening and Druggability Evaluation for Chinese Materia Medica, Key Laboratory of Medical Electrophysiology of Ministry of Education, School of Pharmacy, Southwest Medical University, Luzhou 646000, China
| | - Da-Lian Qin
- Sichuan Key Medical Laboratory of New Drug Discovery and Drugability Evaluation, Luzhou Key Laboratory of Activity Screening and Druggability Evaluation for Chinese Materia Medica, Key Laboratory of Medical Electrophysiology of Ministry of Education, School of Pharmacy, Southwest Medical University, Luzhou 646000, China
| | - Betty Yuen-Kwan Law
- State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Taipa, Macau 99078, China
| | - Vincent Kam-Wai Wong
- State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Taipa, Macau 99078, China
| | - Chong-Lin Yu
- Sichuan Key Medical Laboratory of New Drug Discovery and Drugability Evaluation, Luzhou Key Laboratory of Activity Screening and Druggability Evaluation for Chinese Materia Medica, Key Laboratory of Medical Electrophysiology of Ministry of Education, School of Pharmacy, Southwest Medical University, Luzhou 646000, China.
| | - Xiao-Gang Zhou
- Sichuan Key Medical Laboratory of New Drug Discovery and Drugability Evaluation, Luzhou Key Laboratory of Activity Screening and Druggability Evaluation for Chinese Materia Medica, Key Laboratory of Medical Electrophysiology of Ministry of Education, School of Pharmacy, Southwest Medical University, Luzhou 646000, China.
| | - An-Guo Wu
- Sichuan Key Medical Laboratory of New Drug Discovery and Drugability Evaluation, Luzhou Key Laboratory of Activity Screening and Druggability Evaluation for Chinese Materia Medica, Key Laboratory of Medical Electrophysiology of Ministry of Education, School of Pharmacy, Southwest Medical University, Luzhou 646000, China.
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Shao Z, Lu Y, Xing A, He X, Xie H, Hu M. Effect of outer membrane vesicles of Lactobacillus pentosus on Tau phosphorylation and CDK5-Calpain pathway in mice. Exp Gerontol 2024; 189:112400. [PMID: 38484904 DOI: 10.1016/j.exger.2024.112400] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2023] [Revised: 02/16/2024] [Accepted: 03/11/2024] [Indexed: 03/18/2024]
Abstract
Alzheimer's disease (AD) stands as a neurodegenerative disorder causing cognitive decline, posing a significant health concern for the elderly population in China. This study explored the effects of outer membrane vesicles (OMVs) from the gut microbiota of AD patients on learning and memory abilities and Tau protein phosphorylation in mice. In contrast to the OMVs from healthy controls and the PBS treatment group, mice treated with AD-OMVs exhibited notable declines in learning and memory capabilities, as evidenced by results from the Morris water maze, Y-maze, and novel object recognition tests. Immunohistochemistry and Western blot assessments unveiled elevated levels of hyperphosphorylated Tau in the cortex and hippocampus of mice treated with AD-OMVs. However, there were no alterations observed in the total Tau levels. In addition, AD-OMVs treated mice showed increased neuroinflammation indicated by elevated astrocytes and microglia. Molecular mechanism studies demonstrated that AD-OMVs could activate GSK3β, CDK5-Calpain and NF-κB pathways in mice hippocampus. These studies suggest AD patient gut microbiota derived OMVs can promote host Tau phosphorylation and improved neuroinflammation.
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Affiliation(s)
- Zhongying Shao
- Department of liver diseases, Tai'an Traditional Chinese Medicine Hospital, Tai'an City, Shandong Province, China
| | - Yanjun Lu
- Department of liver diseases, Tai'an Traditional Chinese Medicine Hospital, Tai'an City, Shandong Province, China
| | - Aihong Xing
- TCM Prevent&Health Care Dept Tai'an Traditional Chinese Medicine Hospital, Tai'an City, Shandong Province, China
| | - Xiying He
- Department of Neurology, The Second Affiliated Hospital of Shandong First Medical University, Tai'an City, Shandong Province, China
| | - Hongyan Xie
- Department of Neurology, The Second Affiliated Hospital of Shandong First Medical University, Tai'an City, Shandong Province, China
| | - Ming Hu
- Department of Neurology, The Second Affiliated Hospital of Shandong First Medical University, Tai'an City, Shandong Province, China.
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Karunarathne WAHM, Lee KT, Choi YH, Kang CH, Lee MH, Kim SH, Kim GY. Investigating rutin as a potential transforming growth factor-β type I receptor antagonist for the inhibition of bleomycin-induced lung fibrosis. Biofactors 2024; 50:477-492. [PMID: 38006284 DOI: 10.1002/biof.2020] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Accepted: 08/26/2023] [Indexed: 11/27/2023]
Abstract
Idiopathic pulmonary fibrosis (IPF) is a chronic lung condition characterized by the abnormal regulation of extracellular matrix (ECM) and epithelial-mesenchymal transition (EMT). In this study, we investigated the potential of rutin, a natural flavonoid, in attenuating transforming growth factor-β (TGF-β)-induced ECM regulation and EMT through the inhibition of the TGF-β type I receptor (TβRI)-mediated suppressor of mothers against decapentaplegic (SMAD) signaling pathway. We found that non-toxic concentrations of rutin attenuated TGF-β-induced ECM-related genes, including fibronectin, elastin, collagen 1 type 1, and TGF-β, as well as myoblast differentiation from MRC-5 lung fibroblast cells accompanied by the downregulation of α-smooth muscle actin. Rutin also inhibited TGF-β-induced EMT processes, such as wound healing, migration, and invasion by regulating EMT-related gene expression. Additionally, rutin attenuated bleomycin-induced lung fibrosis in mice, thus providing a potential therapeutic option for IPF. The molecular docking analyses in this study predict that rutin occludes the active site of TβRI and inhibits SMAD-mediated fibrotic signaling pathways in lung fibrosis. These findings highlight the potential of rutin as a promising anti-fibrotic prodrug for lung fibrosis and other TGF-β-induced fibrotic and cancer-related diseases; however, further studies are required to validate its safety and effectiveness in other experimental models.
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Affiliation(s)
| | - Kyoung Tae Lee
- Forest Bioresources Department, Forest Microbiology Division, National Institute of Forest Science, Suwon, Republic of Korea
| | - Yung Hyun Choi
- Department of Biochemistry, College of Korean Medicine, Dong-Eui University, Busan, Republic of Korea
| | - Chang-Hee Kang
- Nakdonggang National Institute of Biological Resources, Sangju, Republic of Korea
| | - Mi-Hwa Lee
- Nakdonggang National Institute of Biological Resources, Sangju, Republic of Korea
| | - Sang-Hun Kim
- Section of Pulmonary, Critical Care and Sleep Medicine, Department of Internal Medicine, Yale University School of Medicine, New Haven, USA
| | - Gi-Young Kim
- Department of Marine Life Science, Jeju National University, Jeju, Republic of Korea
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12
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Liu Y, Qin Y, Zhang Y. circRNA-PTPN4 mediated regulation of FOXO3 and ZO-1 expression: implications for blood-brain barrier integrity and cognitive function in uremic encephalopathy. Cell Biol Toxicol 2024; 40:22. [PMID: 38630149 PMCID: PMC11024022 DOI: 10.1007/s10565-024-09865-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2023] [Accepted: 03/25/2024] [Indexed: 04/19/2024]
Abstract
Uremic encephalopathy (UE) poses a significant challenge in neurology, leading to the need to investigate the involvement of non-coding RNA (ncRNA) in its development. This study employed ncRNA-seq and RNA-seq approaches to identify fundamental ncRNAs, specifically circRNA and miRNA, in the pathogenesis of UE using a mouse model. In vitro and in vivo experiments were conducted to explore the circRNA-PTPN4/miR-301a-3p/FOXO3 axis and its effects on blood-brain barrier (BBB) function and cognitive abilities. The research revealed that circRNA-PTPN4 binds to and inhibits miR-301a-3p, leading to an increase in FOXO3 expression. This upregulation results in alterations in the transcriptional regulation of ZO-1, affecting the permeability of human brain microvascular endothelial cells (HBMECs). The axis also influences the growth, proliferation, and migration of HBMECs. Mice with UE exhibited cognitive deficits, which were reversed by overexpression of circRNA-PTPN4, whereas silencing FOXO3 exacerbated these deficits. Furthermore, the uremic mice showed neuronal loss, inflammation, and dysfunction in the BBB, with the expression of circRNA-PTPN4 demonstrating therapeutic effects. In conclusion, circRNA-PTPN4 plays a role in promoting FOXO3 expression by sequestering miR-301a-3p, ultimately leading to the upregulation of ZO-1 expression and restoration of BBB function in mice with UE. This process contributes to the restoration of cognitive abilities.
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Affiliation(s)
- Yuhan Liu
- Department of Nephrology, General Hospital of the Northern Theatre, No. 83, Wenhua Road, Shenhe District, Shenyang, 110000, Liaoning Province, People's Republic of China
| | - Yanling Qin
- Department of Nephrology, General Hospital of the Northern Theatre, No. 83, Wenhua Road, Shenhe District, Shenyang, 110000, Liaoning Province, People's Republic of China
| | - Yanning Zhang
- Department of Nephrology, General Hospital of the Northern Theatre, No. 83, Wenhua Road, Shenhe District, Shenyang, 110000, Liaoning Province, People's Republic of China.
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Rani A, Zia-Ul-Sabah, Tabassum F, Sharma AK. Molecular interplay between phytoconstituents of Ficus Racemosa and neurodegenerative diseases. Eur J Neurosci 2024; 59:1833-1847. [PMID: 38217338 DOI: 10.1111/ejn.16250] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Revised: 12/13/2023] [Accepted: 12/21/2023] [Indexed: 01/15/2024]
Abstract
Neurodegenerative diseases (NDs) are a significant global health concern, primarily affecting middle and older populations. Recently, there has been growing interest in herbal therapeutics as a potential approach to address diverse neuropathological conditions. Despite the widespread prevalence of NDs, limited phytochemical has been reported for their promising therapeutic potential with distinct underlying mechanisms. Additionally, the intricate molecular pathways influenced by herbal phytoconstituents, particularly in neurodegenerative disorders, are also not well documented. This report explores the phytoconstituents of Ficus racemosa (F. racemosa), an unfamiliar plant of the Moraceae family, for their potential interactions with pathological pathways of NDs. The influential phytoconstituents of F. racemosa, including polyphenols, glycosides, terpenoids, and furocoumarin, have been reported for targeting diverse pathological states. We proposed the most convincing molecular interplay between leading phytoconstituents and detrimental signalling cascades. However, extensive research is required to thoroughly understand the phytochemical persuaded intricate molecular pathway. The comprehensive evidence strongly suggests that F. racemosa and its natural compounds could be valuable in treating NDs. This points towards an exciting path for future research and the development of potential treatments based on a molecular level.
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Affiliation(s)
- Anu Rani
- Department of Cardiovascular Pharmacology, Amity Institute of Pharmacy, Amity University, Gurugram, Haryana, India
| | - Zia-Ul-Sabah
- Department of Medicine, College of Medicine, King Khalid University, Abha, Saudi Arabia
| | - Fauzia Tabassum
- Department of Pharmacology, Vision College, Riyadh, Saudi Arabia
| | - Arun K Sharma
- Department of Cardiovascular Pharmacology, Amity Institute of Pharmacy, Amity University, Gurugram, Haryana, India
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Gao L, Wang D, Ren J, Tan X, Chen J, Kong Z, Nie Y, Yan M. Acteoside ameliorates learning and memory impairment in APP/PS1 transgenic mice by increasing Aβ degradation and inhibiting tau hyperphosphorylation. Phytother Res 2024; 38:1735-1744. [PMID: 37661763 DOI: 10.1002/ptr.8006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Revised: 06/27/2023] [Accepted: 08/20/2023] [Indexed: 09/05/2023]
Abstract
Alzheimer's disease (AD) is a neurodegenerative disease. Senile plaques and intracellular neurofibrillary tangles are pathological hallmarks of AD. Recent studies have described the improved cognitive and neuroprotective functions of acteoside (AS). This study aimed to investigate whether the improved cognition of AS was mediated by Aβ degradation and tau phosphorylation in APP/PS1 mice. The open field, Y maze, and novel object recognition tests were used to assess cognitive behavioral changes. We evaluated the levels of Aβ40 and Aβ42 in serum, cortex, and hippocampus, and Aβ-related scavenging enzymes, phosphorylated GSK3β and hyperphosphorylated tau in the cortex and hippocampus of APP/PS1 mice by western blotting. Our results revealed that AS treatment ameliorated anxious behaviors, spatial learning, and memory impairment in APP/PS1 mice and significantly reduced Aβ deposition in their serum, cortex, and hippocampus. AS significantly increased Aβ degradation, inhibited the hyperphosphorylation of tau, and significantly decreased the activity of GSK3β, which is involved in tau phosphorylation. Altogether, these findings indicated that the beneficial effects of AS on AD-associated anxious behaviors and cognitive impairments could be attributed to promoting Aβ degradation and inhibiting tau hyperphosphorylation, which might be partly mediated by GSK3β.
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Affiliation(s)
- Li Gao
- Prescription Laboratory of Xinjiang Traditional Uyghur Medicine, Xinjiang Institute of Traditional Uyghur Medicine, Urumqi, China
| | - Dongqing Wang
- Prescription Laboratory of Xinjiang Traditional Uyghur Medicine, Xinjiang Institute of Traditional Uyghur Medicine, Urumqi, China
| | - Jia Ren
- Prescription Laboratory of Xinjiang Traditional Uyghur Medicine, Xinjiang Institute of Traditional Uyghur Medicine, Urumqi, China
| | - Xue Tan
- Prescription Laboratory of Xinjiang Traditional Uyghur Medicine, Xinjiang Institute of Traditional Uyghur Medicine, Urumqi, China
| | - Jiayuan Chen
- Prescription Laboratory of Xinjiang Traditional Uyghur Medicine, Xinjiang Institute of Traditional Uyghur Medicine, Urumqi, China
| | - Zheng Kong
- Prescription Laboratory of Xinjiang Traditional Uyghur Medicine, Xinjiang Institute of Traditional Uyghur Medicine, Urumqi, China
| | - Yunan Nie
- Prescription Laboratory of Xinjiang Traditional Uyghur Medicine, Xinjiang Institute of Traditional Uyghur Medicine, Urumqi, China
| | - Ming Yan
- Prescription Laboratory of Xinjiang Traditional Uyghur Medicine, Xinjiang Institute of Traditional Uyghur Medicine, Urumqi, China
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Du Y, Ma H, Liu Y, Gong R, Lan Y, Zhao J, Liu G, Lu Y, Wang S, Jia H, Li N, Zhang R, Wang J, Sun G. Major quality regulation network of flavonoid synthesis governing the bioactivity of black wolfberry. THE NEW PHYTOLOGIST 2024; 242:558-575. [PMID: 38396374 DOI: 10.1111/nph.19602] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2023] [Accepted: 01/26/2024] [Indexed: 02/25/2024]
Abstract
Black wolfberry (Lycium ruthenicum Murr.) contains various bioactive metabolites represented by flavonoids, which are quite different among production regions. However, the underlying regulation mechanism of flavonoid biosynthesis governing the bioactivity of black wolfberry remains unclear. Presently, we compared the bioactivity of black wolfberry from five production regions. Multi-omics were performed to construct the regulation network associated with the fruit bioactivity. The detailed regulation mechanisms were identified using genetic and molecular methods. Typically, Qinghai (QH) fruit exhibited higher antioxidant and anti-inflammatory activities. The higher medicinal activity of QH fruit was closely associated with the accumulation of eight flavonoids, especially Kaempferol-3-O-rutinoside (K3R) and Quercetin-3-O-rutinoside (rutin). Flavonoid biosynthesis was found to be more active in QH fruit, and the upregulation of LrFLS, LrCHS, LrF3H and LrCYP75B1 caused the accumulation of K3R and rutin, leading to high medicinal bioactivities of black wolfberry. Importantly, transcription factor LrMYB94 was found to regulate LrFLS, LrCHS and LrF3H, while LrWRKY32 directly triggered LrCYP75B1 expression. Moreover, LrMYB94 interacted with LrWRKY32 to promote LrWRKY32-regulated LrCYP75B1 expression and rutin synthesis in black wolfberry. Transgenic black wolfberry overexpressing LrMYB94/LrWRKY32 contained higher levels of K3R and rutin, and exhibited high medicinal bioactivities. Importantly, the LrMYB94/LrWRKY32-regulated flavonoid biosynthesis was light-responsive, showing the importance of light intensity for the medicinal quality of black wolfberry. Overall, our results elucidated the regulation mechanisms of K3R and rutin synthesis, providing the basis for the genetic breeding of high-quality black wolfberry.
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Affiliation(s)
- Youwei Du
- State Key Laboratory of Crop Stress Biology for Arid Areas and College of Plant Protection, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Huiya Ma
- College of Chemistry and Pharmacy, Northwest A&F University, Yangling, Shaanxi, 712100, China
- Department of Basic Medicine, Qinghai University, Xining, Qinghai, 810016, China
| | - Yuanyuan Liu
- State Key Laboratory of Crop Stress Biology for Arid Areas and College of Plant Protection, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Rui Gong
- College of Chemistry and Pharmacy, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Yu Lan
- College of Chemistry and Pharmacy, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Jianhua Zhao
- National Wolfberry Engineering Center, Ningxia Academy of Agriculture and Forestry Sciences, Yinchuan, 750002, China
| | - Guangli Liu
- State Key Laboratory of Crop Stress Biology for Arid Areas and College of Plant Protection, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Yiming Lu
- State Key Laboratory of Crop Stress Biology for Arid Areas and College of Plant Protection, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Shuanghong Wang
- State Key Laboratory of Crop Stress Biology for Arid Areas and College of Plant Protection, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Hongchen Jia
- State Key Laboratory of Crop Stress Biology for Arid Areas and College of Plant Protection, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Na Li
- Instrumental Analysis Center, Xi'an Jiaotong University, Xi'an, Shaanxi, 710000, China
| | - Rong Zhang
- State Key Laboratory of Crop Stress Biology for Arid Areas and College of Plant Protection, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Junru Wang
- College of Chemistry and Pharmacy, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Guangyu Sun
- State Key Laboratory of Crop Stress Biology for Arid Areas and College of Plant Protection, Northwest A&F University, Yangling, Shaanxi, 712100, China
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Umeda T, Shigemori K, Uekado R, Matsuda K, Tomiyama T. Hawaiian native herb Mamaki prevents dementia by ameliorating neuropathology and repairing neurons in four different mouse models of neurodegenerative diseases. GeroScience 2024; 46:1971-1987. [PMID: 37783918 PMCID: PMC10828292 DOI: 10.1007/s11357-023-00950-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Accepted: 09/18/2023] [Indexed: 10/04/2023] Open
Abstract
Neurodegenerative diseases including Alzheimer's disease, frontotemporal dementia, and dementia with Lewy bodies are age-related disorders and the main cause of dementia. They are characterized by the cerebral accumulation of Aβ, tau, α-synuclein, and TDP-43. Because the accumulation begins decades before disease onset, treatment should be started in the preclinical stage. Such intervention would be long-lasting, and therefore, prophylactic agents should be safe, non-invasively taken by the patients, and inexpensive. In addition, the agents should be broadly effective against etiologic proteins and capable of repairing neurons damaged by toxic oligomers. These requirements are difficult to meet with single-ingredient pharmaceuticals but may be feasible by taking proper diets composed of multiple ingredients. As a source of such diets, we focused on the Hawaiian native herb Mamaki. From its dried leaves and fruits, we made three preparations: hot water extract of the leaves, non-extracted simple crush powder of the leaves, and simple crush powder of the fruits, and examined their effects on the cognitive function and neuropathologies in four different mouse models of neurodegenerative dementia. Hot water extract of the leaves attenuated neuropathologies, restored synaptophysin levels, suppressed microglial activation, and improved memory when orally administered for 1 month. Simply crushed leaf powder showed a higher efficacy, but simply crushed fruit powder displayed the strongest effects. Moreover, the fruit powder significantly enhanced the levels of brain-derived neurotrophic factor expression and neurogenesis, indicating its ability to repair neurons. These results suggest that crushed Mamaki leaves and fruits are promising sources of dementia-preventive diets.
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Affiliation(s)
- Tomohiro Umeda
- Department of Translational Neuroscience, Osaka Metropolitan University Graduate School of Medicine, 1-4-3 Asahimachi, Osaka, Abeno-ku, 545-8585, Japan
- Cerebro Pharma Inc, 4-5-6-3F Minamikyuhojimachi, Osaka, Chuo-ku, 541-0058, Japan
| | - Keiko Shigemori
- Department of Translational Neuroscience, Osaka Metropolitan University Graduate School of Medicine, 1-4-3 Asahimachi, Osaka, Abeno-ku, 545-8585, Japan
| | - Rumi Uekado
- Department of Translational Neuroscience, Osaka Metropolitan University Graduate School of Medicine, 1-4-3 Asahimachi, Osaka, Abeno-ku, 545-8585, Japan
| | - Kazunori Matsuda
- Cerebro Pharma Inc, 4-5-6-3F Minamikyuhojimachi, Osaka, Chuo-ku, 541-0058, Japan
| | - Takami Tomiyama
- Department of Translational Neuroscience, Osaka Metropolitan University Graduate School of Medicine, 1-4-3 Asahimachi, Osaka, Abeno-ku, 545-8585, Japan.
- Cerebro Pharma Inc, 4-5-6-3F Minamikyuhojimachi, Osaka, Chuo-ku, 541-0058, Japan.
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Wang N, Li F, Du J, Hao J, Wang X, Hou Y, Luo Z. Quercetin Protects Against Global Cerebral ischemia‒reperfusion Injury by Inhibiting Microglial Activation and Polarization. J Inflamm Res 2024; 17:1281-1293. [PMID: 38434580 PMCID: PMC10906675 DOI: 10.2147/jir.s448620] [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: 11/10/2023] [Accepted: 02/20/2024] [Indexed: 03/05/2024] Open
Abstract
Background This study aims to investigate the protective effect of quercetin against global cerebral ischemia‒reperfusion (GCI/R) injury in rats and elucidate the underlying mechanism. Methods A GCI/R injury rat model was established using a four-vessel occlusion (4-VO) method. An oxygen-glucose deprivation/reoxygenation (OGD/R) injury model was induced in BV2 cells. The extent of injury was assessed by evaluating neurological deficit scores (NDS) and brain water content and conducting behavioral tests. Pathomorphological changes in the prefrontal cortex were examined. Additionally, the study measured the levels of inflammatory cytokines, the degree of microglial activation and polarization, and the protein expression of Toll-like receptor 4 (TLR4) and TIR-domain-containing adaptor inducing interferon-β (TRIF). Results Quercetin pretreatment significantly ameliorated neurological impairment, improved learning and memory abilities, and reduced anxiety in rats subjected to GCI/R injury. Furthermore, quercetin administration effectively mitigated neuronal injury and brain edema. Notably, it suppressed microglial activation and hindered polarization toward the M1 phenotype. Simultaneously, quercetin downregulated the expression of TLR4 and TRIF proteins and attenuated the release of IL-1β and TNF-α. Conclusion This study highlights the novel therapeutic potential of quercetin in alleviating GCI/R injury. Quercetin demonstrates its neuroprotective effects by inhibiting neuroinflammation and microglial activation while impeding their transformation into the M1 phenotype through modulation of the TLR4/TRIF pathway.
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Affiliation(s)
- Naigeng Wang
- Department of Anesthesiology, Honghui Hospital, Xi’an Jiaotong University, Xi’an, Shaanxi, People’s Republic of China
| | - Fei Li
- Department of Neurosurgery, Tangdu Hospital, The Fourth Military Medical University, Xi’an, Shaanxi, People’s Republic of China
| | - Jing Du
- Second Clinical Medical College, Shaanxi University of Chinese Medicine, Xianyang, Shaanxi, People’s Republic of China
| | - Jianhong Hao
- Department of Anesthesiology, Honghui Hospital, Xi’an Jiaotong University, Xi’an, Shaanxi, People’s Republic of China
| | - Xin Wang
- Department of Neurosurgery, Tangdu Hospital, The Fourth Military Medical University, Xi’an, Shaanxi, People’s Republic of China
| | - Yueru Hou
- Second Clinical Medical College, Shaanxi University of Chinese Medicine, Xianyang, Shaanxi, People’s Republic of China
| | - Zhenguo Luo
- Department of Anesthesiology, Honghui Hospital, Xi’an Jiaotong University, Xi’an, Shaanxi, People’s Republic of China
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18
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Wang T, Lv L, Feng H, Gu W. Unlocking the Potential: Quercetin and Its Natural Derivatives as Promising Therapeutics for Sepsis. Biomedicines 2024; 12:444. [PMID: 38398046 PMCID: PMC10887054 DOI: 10.3390/biomedicines12020444] [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: 12/14/2023] [Revised: 02/06/2024] [Accepted: 02/13/2024] [Indexed: 02/25/2024] Open
Abstract
Sepsis is a syndrome of organ dysfunction caused by an uncontrolled inflammatory response, which can seriously endanger life. Currently, there is still a shortage of specific therapeutic drugs. Quercetin and its natural derivatives have received a lot of attention recently for their potential in treating sepsis. Here, we provide a comprehensive summary of the recent research progress on quercetin and its derivatives, with a focus on their specific mechanisms of antioxidation and anti-inflammation. To obtain the necessary information, we conducted a search in the PubMed, Web of Science, EBSCO, and Cochrane library databases using the keywords sepsis, anti-inflammatory, antioxidant, anti-infection, quercetin, and its natural derivatives to identify relevant research from 6315 articles published in the last five years. At present, quercetin and its 11 derivatives have been intensively studied. They primarily exert their antioxidation and anti-inflammation effects through the PI3K/AKT/NF-κB, Nrf2/ARE, and MAPK pathways. The feasibility of these compounds in experimental models and clinical application were also discussed. In conclusion, quercetin and its natural derivatives have good application potential in the treatment of sepsis.
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Affiliation(s)
- Tian Wang
- Center of Smart Laboratory and Molecular Medicine, School of Medicine, Chongqing University, Chongqing 400030, China; (T.W.); (L.L.)
| | - Linxi Lv
- Center of Smart Laboratory and Molecular Medicine, School of Medicine, Chongqing University, Chongqing 400030, China; (T.W.); (L.L.)
| | - Hui Feng
- Center of Smart Laboratory and Molecular Medicine, School of Medicine, Chongqing University, Chongqing 400030, China; (T.W.); (L.L.)
| | - Wei Gu
- Center of Smart Laboratory and Molecular Medicine, School of Medicine, Chongqing University, Chongqing 400030, China; (T.W.); (L.L.)
- College of Bioengineering, Chongqing University, Chongqing 400044, China
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Amir A, Shahid M, Farooq Khan S, Nisar U, Faizi S, Usman Simjee S. Nicotinic acid modulates microglial TREM-2 gene in Phytohaemagglutinin-Induced in vitro model of Alzheimer's disease like pathology. Brain Res 2024; 1824:148686. [PMID: 38008243 DOI: 10.1016/j.brainres.2023.148686] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Revised: 11/18/2023] [Accepted: 11/21/2023] [Indexed: 11/28/2023]
Abstract
Alzheimer's disease (AD) is a multifactorial,neurodegenerative disorder linked withextracellular amyloid beta (Aβ) plaques deposition and formation of intracellular neurofibrillary tangles (NFTs). Currently, no effective therapies are available to cure AD. Neuroinflammation isa well-known hallmark in the onset and advancement of AD and triggering receptor expressed on myeloid cells-2 (TREM-2), a microglial gene, is responsible for regulating inflammatory responses and clearance of cellular debris. Loss of TREM-2functionincreases neuroinflammation associated expression of pro-inflammatory markersthus resultingin reduced clearance of Aβ that further aid in disease progression.Therefore, targeting neuroinflammation is a good therapeutic approach for AD. This study aimed to determine the neuroprotective effect of nicotinic acid (NA) in vitro model of AD-like pathology induced in F-98 cell line using Phytohemagglutinin (PHA). MTT assay was employed for checking the cell viability as well as the proliferation of the cells following treatment with NA. PHA at the concentration of 10 μg/mL produces maximum plaques. The neuroprotective effect of NA was next evaluated against PHA-induced plaques and it was observed that NA reverses the damages induced by PHA i.e., by inhibiting the clustering of the cells and replacing the damaged cells with the new ones. Further, NA also increased the expression of TREM-2/DAP-12 with parallel decreased in the expression of IL-1β, TNF-α and iNOS. It also successfully altered disease associated ADAM-10 and BACE-1 compared to PHA control. These findings suggest that NA might be considered as a good therapeutic candidate for the treatment of neurodegenerative disorders like AD.
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Affiliation(s)
- Aiman Amir
- Dr. Panjwani Center for Molecular Medicine and Drug Research, International Center for Chemical and Biological Sciences, University of Karachi, Karachi 75270, Pakistan
| | - Maha Shahid
- H.E.J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi 75270, Pakistan
| | - Sarosh Farooq Khan
- Dr. Panjwani Center for Molecular Medicine and Drug Research, International Center for Chemical and Biological Sciences, University of Karachi, Karachi 75270, Pakistan
| | - Uzair Nisar
- H.E.J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi 75270, Pakistan
| | - Shaheen Faizi
- H.E.J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi 75270, Pakistan.
| | - Shabana Usman Simjee
- Dr. Panjwani Center for Molecular Medicine and Drug Research, International Center for Chemical and Biological Sciences, University of Karachi, Karachi 75270, Pakistan; H.E.J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi 75270, Pakistan.
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20
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Ji Y, Ma Y, Ma Y, Wang Y, Zhao X, Jin D, Xu L, Ge S. Rutin prevents pyroptosis and M1 microglia via Nrf2/Mac-1/caspase-1-mediated inflammasome axis to improve POCD. Int Immunopharmacol 2024; 127:111290. [PMID: 38064815 DOI: 10.1016/j.intimp.2023.111290] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Revised: 11/05/2023] [Accepted: 11/22/2023] [Indexed: 01/18/2024]
Abstract
BACKGROUND Neuroinflammation following peripheral surgery plays a key role in postoperative cognitive dysfunction (POCD) development and there is no effective therapy to inflammation-mediated cognitive impairment. Recent studies showed that rutin, a natural flavonoid compound, conferred neuroprotection. However, the effects and mechanisms of rutin on cognition of surgical and aged mice and LPS-induced BV2 need deeper exploration. METHODS The effect of rutin in vivo and vitro were evaluated by Morris water maze test, HE stainin, Golgi-Cox staining, IF, IHC, RT-PCR, Flow Cytometer and Western blotting. In vivo, aged mice were treated with rutin and surgery. In vitro, rutin, Nrf2 knockdown, MAC-1 overexpression and VX765, a caspase-1 inhibitor, were administration on BV2 microglial cells. RESULTS Surgery led to compensatory increase in nuclear Nrf2 and rutin could further increase it. Neural damage was accompanied with high level in MAC-1, caspase-1-mediated pyroptosis and M1 microglia, while rutin recovered the process. Nrf2 inhibition abolished the effect of rutin with the increase of MAC-1, caspase-1-mediated pyroptosis and M1 microglia. Activation of MAC-1 abrogated protection of rutin by increase in pyroptosis and M1 microglia. Finally, we found that treatment with VX765 improved injury and increased M2 microglia against overexpression of MAC-1. CONCLUSIONS Our study indicated that rutin may be a potential therapy in POCD and exerted neural protection via Nrf2/ Mac-1/ caspase-1-mediated inflammasome axis to regulate pyroptosis and microglial polarization.
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Affiliation(s)
- Yelong Ji
- Department of Anaesthesia, Zhongshan Hospital, Fudan University, No. 180 Fenglin Road, Shanghai 200032 China
| | - Yuanyuan Ma
- Department of Anaesthesia, Zhongshan Hospital, Fudan University, No. 180 Fenglin Road, Shanghai 200032 China
| | - Yimei Ma
- Department of Anaesthesia, Zhongshan Hospital, Fudan University, No. 180 Fenglin Road, Shanghai 200032 China
| | - Ying Wang
- Department of Anaesthesia, Zhongshan Hospital, Fudan University, No. 180 Fenglin Road, Shanghai 200032 China
| | - Xining Zhao
- Department of Anaesthesia, Zhongshan Hospital, Fudan University, No. 180 Fenglin Road, Shanghai 200032 China
| | - Danfeng Jin
- Department of Anaesthesia, Zhongshan Hospital, Fudan University, No. 180 Fenglin Road, Shanghai 200032 China
| | - Li Xu
- Department of Anaesthesia, Zhongshan Hospital, Fudan University, No. 180 Fenglin Road, Shanghai 200032 China
| | - Shengjin Ge
- Department of Anaesthesia, Zhongshan Hospital, Fudan University, No. 180 Fenglin Road, Shanghai 200032 China.
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21
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Shi H, Zhao Y. Modulation of Tau Pathology in Alzheimer's Disease by Dietary Bioactive Compounds. Int J Mol Sci 2024; 25:831. [PMID: 38255905 PMCID: PMC10815728 DOI: 10.3390/ijms25020831] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Revised: 01/02/2024] [Accepted: 01/02/2024] [Indexed: 01/24/2024] Open
Abstract
Tau is a microtubule-associated protein essential for microtubule assembly and stability in neurons. The abnormal intracellular accumulation of tau aggregates is a major characteristic of brains from patients with Alzheimer's disease (AD) and other tauopathies. In AD, the presence of neurofibrillary tangles (NFTs), which is composed of hyperphosphorylated tau protein, is positively correlated with the severity of the cognitive decline. Evidence suggests that the accumulation and aggregation of tau cause synaptic dysfunction and neuronal degeneration. Thus, the prevention of abnormal tau phosphorylation and elimination of tau aggregates have been proposed as therapeutic strategies for AD. However, currently tau-targeting therapies for AD and other tauopathies are limited. A number of dietary bioactive compounds have been found to modulate the posttranslational modifications of tau, including phosphorylation, small ubiquitin-like modifier (SUMO) mediated modification (SUMOylation) and acetylation, as well as inhibit tau aggregation and/or promote tau degradation. The advantages of using these dietary components over synthetic substances in AD prevention and intervention are their safety and accessibility. This review summarizes the mechanisms leading to tau pathology in AD and highlights the effects of bioactive compounds on the hyperphosphorylation, aggregation and clearance of tau protein. The potential of using these bioactive compounds for AD prevention and intervention is also discussed.
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Affiliation(s)
- Huahua Shi
- Department of Bioengineering, Harbin Institute of Technology, Weihai 264209, China;
- School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, China
| | - Yan Zhao
- Department of Bioengineering, Harbin Institute of Technology, Weihai 264209, China;
- School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, China
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22
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Zhou Z, Jiang WJ, Li L, Si JQ. The effects of noise exposure on hippocampal cognition in C57BL/6 mice via transcriptomics. Biochem Biophys Res Commun 2024; 690:149257. [PMID: 38016245 DOI: 10.1016/j.bbrc.2023.149257] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Revised: 10/27/2023] [Accepted: 11/14/2023] [Indexed: 11/30/2023]
Abstract
BACKGROUND Noise is an important environmental stressor in the industrialized world and has received increasing attention in recent years. Although epidemiological research has extensively demonstrated the relationship between noise and cognitive impairment, the specific molecular mechanisms and targets remain to be fully explored and understood. METHODS To address this issue, 5-month-old C57BL/6 mice were divided into two groups, with one group exposed to white noise at 98 dB. The effects of noise on cognition in mice were investigated through molecular biology and behavioral experiments. Subsequently, transcriptomic sequencing of the hippocampus in both groups of mice was performed and enrichment analysis of differentially expressed genes (DEGs) was conducted using KEGG and GO databases. Furthermore, LASSO analysis was used to further narrow down the relevant DEGs, followed by enrichment analysis of these genes using KEGG and GO databases. The DEGs were further validated by rt-qPCR. RESULTS Following noise exposure, the hippocampus levels of inflammation-related factors increased, the phosphorylation of Tau protein increased, the postsynaptic density protein decreased, the number of Nissl bodies decreased, and cell shrinkage in the hippocampus increased. Moreover, the behavioral experiments manifest characteristics indicative of a decline in cognitive.A total of 472 DEGs were identified through transcriptomic analysis, and seven relevant genes were screened by the LASSO algorithm, which were further validated by PCR to confirm their consistency with the omics results. CONCLUSION In conclusion, noise exposure affects cognitive function in mice through multiple pathways, and the omics results provide new evidence for the cognitive impairment induced by noise exposure.
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Affiliation(s)
- Zan Zhou
- Department of Physiology, Medical College of Shihezi University, Shihezi, Xinjiang, 832000, China; Department of Physiology, Medical College of Jiaxing University, Jiaxing, Zhejiang, 314000, China; The Key Laboratory of Xinjiang Endemic and Ethnic Diseases, Medical College of Shihezi University, Shihezi, 832000, Xinjiang, China
| | - Wen-Jun Jiang
- Department of Physiology, Medical College of Jiaxing University, Jiaxing, Zhejiang, 314000, China; Department of Physiology, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, 310051, China
| | - Li Li
- Department of Physiology, Medical College of Jiaxing University, Jiaxing, Zhejiang, 314000, China.
| | - Jun-Qiang Si
- Department of Physiology, Medical College of Shihezi University, Shihezi, Xinjiang, 832000, China; The Key Laboratory of Xinjiang Endemic and Ethnic Diseases, Medical College of Shihezi University, Shihezi, 832000, Xinjiang, China.
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Singh S, Chib S, Akhtar MJ, Kumar B, Chawla PA, Bhatia R. Paradigms and Success Stories of Natural Products in Drug Discovery Against Neurodegenerative Disorders (NDDs). Curr Neuropharmacol 2024; 22:992-1015. [PMID: 36606589 DOI: 10.2174/1570159x21666230105110834] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Revised: 10/17/2022] [Accepted: 10/19/2022] [Indexed: 01/07/2023] Open
Abstract
Neurodegenerative disorders (NDDs) are multifaceted complex disorders that have put a great health and economic burden around the globe nowadays. The multi-factorial nature of NDDs has presented a great challenge in drug discovery and continuous efforts are in progress in search of suitable therapeutic candidates. Nature has a great wealth of active principles in its lap that has cured the human population since ancient times. Natural products have revealed several benefits over conventional synthetic medications and scientists have shifted their vision towards exploring the therapeutic potentials of natural products in the past few years. The structural mimicking of natural compounds to endogenous ligands has presented them as a potential therapeutic candidate to prevent the development of NDDs. In the presented review, authors have summarized demographical facts about various NDDs including Alzheimer's disease (AD), Parkinson's disease (PD), Huntington's disease (HD) and various types of sclerosis in the brain. The significant findings of new active principles of natural origin along with their therapeutic potentials on NDDs have been included. Also, a description of clinical trials and patents on natural products has been enlisted in this compilation. Although natural products have shown promising success in drug discovery against NDDs, still their use is associated with several ethical issues which need to be solved in the upcoming time.
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Affiliation(s)
- Sukhwinder Singh
- Department of Pharmaceutical Chemistry and Analysis, ISF College of Pharmacy Moga, Punjab, 142001, India
| | - Shivani Chib
- Department of Pharmacology, ISF College of Pharmacy Moga, Punjab, 142001, India
| | - Md Jawaid Akhtar
- Department of Pharmaceutical Chemistry, College of Pharmacy, National University of Science and Technology, PO620, PC 130 Azaiba, Bousher, Muscat, Oman
| | - Bhupinder Kumar
- Department of Pharmaceutical Chemistry and Analysis, ISF College of Pharmacy Moga, Punjab, 142001, India
- Department of Pharmaceutical Sciences, HNB Garhwal University, Chauras Campus, Srinagar, Garhwal, Uttarakhand, 246174, India
| | - Pooja A Chawla
- Department of Pharmaceutical Chemistry and Analysis, ISF College of Pharmacy Moga, Punjab, 142001, India
| | - Rohit Bhatia
- Department of Pharmaceutical Chemistry and Analysis, ISF College of Pharmacy Moga, Punjab, 142001, India
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Ma X, Ren X, Zhang X, Wang G, Liu H, Wang L. Rutin ameliorate PFOA induced renal damage by reducing oxidative stress and improving lipid metabolism. J Nutr Biochem 2024; 123:109501. [PMID: 37890710 DOI: 10.1016/j.jnutbio.2023.109501] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Revised: 10/09/2023] [Accepted: 10/22/2023] [Indexed: 10/29/2023]
Abstract
Perfluorooctanoic acid (PFOA) is a persistent environmental pollutant that can accumulate in the kidneys and eventually cause kidney damage. Rutin (RUTIN) is a natural flavonoid with multiple biological activities, and its use in against kidney damage has been widely studied in recent years. It is not yet known whether rutin protects against kidney damage caused by PFOA. In this study, 30 ICR mice were randomly divided into three groups: CTRL group, PFOA group and PFOA+RUTIN group. The mice were fed continuously by gavage for 28 days. Renal pathological changes were assessed by HE and PASM staining, and serum renal function and lipid indicators were measured. RNA-seq and enrichment analysis using GO, KEGG and PPI to detect differential expression of genes in treatment groups. Kidney tissue protein expression was determined by Western blot. Research has shown that rutin can improve glomerular and tubular structural damage, and increase serum CREA, HDL-C levels and decrease LDH, LDL-C levels. The expression of AQP1 and ACOT1 was up-regulated after rutin treatment. Transcriptomic analysis indicated that PFOA and rutin affect the transcriptional expression of genes related to lipid metabolism and oxidative stress, and may affected by PI3K-Akt, PPAR, NRF2/KEAP1 signaling pathways. In conclusion, rutin ameliorated renal damage caused by PFOA exposure, and this protective effect may be exerted by ameliorating oxidative stress and regulating lipid metabolism.
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Affiliation(s)
- Xinzhuang Ma
- School of Public Health, Bengbu Medical College, Bengbu, PR China
| | - Xijuan Ren
- School of Public Health, Bengbu Medical College, Bengbu, PR China
| | - Xuemin Zhang
- Department of Biochemistry and Molecular Biology, School of Laboratory Medicine; Anhui Province Key Laboratory of Immunology in Chronic Diseases, Bengbu Medical College, Bengbu, PR China
| | - Guangyin Wang
- School of Public Health, Bengbu Medical College, Bengbu, PR China
| | - Hui Liu
- Department of Biochemistry and Molecular Biology, School of Laboratory Medicine; Anhui Province Key Laboratory of Immunology in Chronic Diseases, Bengbu Medical College, Bengbu, PR China.
| | - Li Wang
- School of Public Health, Bengbu Medical College, Bengbu, PR China.
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25
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Zhang Q, Yan Y. The role of natural flavonoids on neuroinflammation as a therapeutic target for Alzheimer's disease: a narrative review. Neural Regen Res 2023; 18:2582-2591. [PMID: 37449593 DOI: 10.4103/1673-5374.373680] [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: 07/18/2023] Open
Abstract
Alzheimer's disease is a neurodegenerative disease that affects a large proportion of older adult people and is characterized by memory loss, progressive cognitive impairment, and various behavioral disturbances. Although the pathological mechanisms underlying Alzheimer's disease are complex and remain unclear, previous research has identified two widely accepted pathological characteristics: extracellular neuritic plaques containing amyloid beta peptide, and intracellular neurofibrillary tangles containing tau. Furthermore, research has revealed the significant role played by neuroinflammation over recent years. The inflammatory microenvironment mainly consists of microglia, astrocytes, the complement system, chemokines, cytokines, and reactive oxygen intermediates; collectively, these factors can promote the pathological process and aggravate the severity of Alzheimer's disease. Therefore, the development of new drugs that can target neuroinflammation will be a significant step forward for the treatment of Alzheimer's disease. Flavonoids are plant-derived secondary metabolites that possess various bioactivities. Previous research found that multiple natural flavonoids could exert satisfactory treatment effects on the neuroinflammation associated with Alzheimer's disease. In this review, we describe the pathogenesis and neuroinflammatory processes of Alzheimer's disease, and summarize the effects and mechanisms of 13 natural flavonoids (apigenin, luteolin, naringenin, quercetin, morin, kaempferol, fisetin, isoquercitrin, astragalin, rutin, icariin, mangiferin, and anthocyanin) derived from plants or medicinal herbs on neuroinflammation in Alzheimer's disease. As an important resource for the development of novel compounds for the treatment of critical diseases, it is essential that we focus on the exploitation of natural products. In particular, it is vital that we investigate the effects of flavonoids on the neuroinflammation associated with Alzheimer's disease in greater detail.
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Affiliation(s)
- Qian Zhang
- National Engineering Laboratory for Resource Development of Endangered Crude Drugs in Northwest China; Key Laboratory of Medicinal Resources and Natural Pharmaceutical Chemistry, The Ministry of Education; College of Life Sciences, Shaanxi Normal University, Xi'an, Shaanxi Province, China
| | - Yaping Yan
- National Engineering Laboratory for Resource Development of Endangered Crude Drugs in Northwest China; Key Laboratory of Medicinal Resources and Natural Pharmaceutical Chemistry, The Ministry of Education; College of Life Sciences, Shaanxi Normal University, Xi'an, Shaanxi Province, China
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Phukan BC, Roy R, Gahatraj I, Bhattacharya P, Borah A. Therapeutic considerations of bioactive compounds in Alzheimer's disease and Parkinson's disease: Dissecting the molecular pathways. Phytother Res 2023; 37:5657-5699. [PMID: 37823581 DOI: 10.1002/ptr.8012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Revised: 08/22/2023] [Accepted: 08/24/2023] [Indexed: 10/13/2023]
Abstract
Leading neurodegenerative diseases Alzheimer's disease (AD) and Parkinson's disease (PD) are characterized by the impairment of memory and motor functions, respectively. Despite several breakthroughs, there exists a lack of disease-modifying treatment strategies for these diseases, as the available drugs provide symptomatic relief and bring along side effects. Bioactive compounds are reported to bear neuroprotective properties with minimal toxicity, however, a detailed elucidation of their modes of neuroprotection is lacking. The review elucidates the neuroprotective mechanism(s) of some of the major phyto-compounds in pre-clinical and clinical studies of AD and PD to understand their potential in combating these diseases. Curcumin, eugenol, resveratrol, baicalein, sesamol and so on have proved efficient in countering the pathological hallmarks of AD and PD. Curcumin, resveratrol, caffeine and so on have reached the clinical phases of these diseases, while aromadendrin, delphinidin, cyanidin and xanthohumol are yet to be extensively explored in pre-clinical phases. The review highlights the need for extensive investigation of these compounds in the clinical stages of these diseases so as to utilize their disease-modifying abilities in the real field of treatment. Moreover, poor pharmacokinetic properties of natural compounds are constraints to their therapeutic yields and this review suggests a plausible contribution of nanotechnology in overcoming these limitations.
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Affiliation(s)
| | - Rubina Roy
- Department of Life Science and Bioinformatics, Assam University, Silchar, Assam, India
| | - Indira Gahatraj
- Department of Life Science and Bioinformatics, Assam University, Silchar, Assam, India
| | - Pallab Bhattacharya
- Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Gandhinagar, Gujarat, India
| | - Anupom Borah
- Department of Life Science and Bioinformatics, Assam University, Silchar, Assam, India
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Khan T, Waseem R, Shahid M, Ansari J, Ahanger IA, Hassan I, Islam A. Recent advancement in therapeutic strategies for Alzheimer's disease: Insights from clinical trials. Ageing Res Rev 2023; 92:102113. [PMID: 37918760 DOI: 10.1016/j.arr.2023.102113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Revised: 10/16/2023] [Accepted: 10/27/2023] [Indexed: 11/04/2023]
Abstract
Alzheimer's disease (AD) is the most prevalent form of dementia, characterized by the presence of plaques of amyloid beta and Tau proteins. There is currently no permanent cure for AD; the only medications approved by the FDA for mild to moderate AD are cholinesterase inhibitors, NMDA receptor antagonists, and immunotherapies against core pathophysiology, that provide temporary relief only. Researchers worldwide have made significant attempts to find new targets and develop innovative therapeutic molecules to treat AD. The FDA-approved drugs are palliative and couldn't restore the damaged neuron cells of AD. Stem cells have self-differentiation properties, making them prospective therapeutics to treat AD. The promising results in pre-clinical studies of stem cell therapy for AD seek attention worldwide. Various stem cells, mainly mesenchymal stem cells, are currently in different phases of clinical trials and need more advancements to take this therapy to the translational level. Here, we review research from the past decade that has identified several hypotheses related to AD pathology. Moreover, this article also focuses on the recent advancement in therapeutic strategies for AD treatment including immunotherapy and stem cell therapy detailing the clinical trials that are currently undergoing development.
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Affiliation(s)
- Tanzeel Khan
- Centre for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia, Jamia Nagar, New Delhi 110025, India
| | - Rashid Waseem
- Centre for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia, Jamia Nagar, New Delhi 110025, India
| | - Mohammad Shahid
- Department of Basic Medical Sciences, College of Medicine, Prince Sattam Bin Abdulaziz University, Al-Kharj 11942, Saudi Arabia
| | - Jaoud Ansari
- Centre for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia, Jamia Nagar, New Delhi 110025, India
| | - Ishfaq Ahmad Ahanger
- Centre for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia, Jamia Nagar, New Delhi 110025, India; Department of Clinical Biochemistry, University of Kashmir,190006, India
| | - Imtaiyaz Hassan
- Centre for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia, Jamia Nagar, New Delhi 110025, India
| | - Asimul Islam
- Centre for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia, Jamia Nagar, New Delhi 110025, India.
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Wu W, Huang J, Han P, Zhang J, Wang Y, Jin F, Zhou Y. Research Progress on Natural Plant Molecules in Regulating the Blood-Brain Barrier in Alzheimer's Disease. Molecules 2023; 28:7631. [PMID: 38005352 PMCID: PMC10674591 DOI: 10.3390/molecules28227631] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2023] [Revised: 11/07/2023] [Accepted: 11/14/2023] [Indexed: 11/26/2023] Open
Abstract
Alzheimer's disease (AD) is a prevalent neurodegenerative disorder. With the aging population and the continuous development of risk factors associated with AD, it will impose a significant burden on individuals, families, and society. Currently, commonly used therapeutic drugs such as Cholinesterase inhibitors, N-methyl-D-aspartate antagonists, and multiple AD pathology removal drugs have been shown to have beneficial effects on certain pathological conditions of AD. However, their clinical efficacy is minimal and they are associated with certain adverse reactions. Furthermore, the underlying pathological mechanism of AD remains unclear, posing a challenge for drug development. In contrast, natural plant molecules, widely available, offer multiple targeting pathways and demonstrate inherent advantages in modifying the typical pathologic features of AD by influencing the blood-brain barrier (BBB). We provide a comprehensive review of recent in vivo and in vitro studies on natural plant molecules that impact the BBB in the treatment of AD. Additionally, we analyze their specific mechanisms to offer novel insights for the development of safe and effective targeted drugs as well as guidance for experimental research and the clinical application of drugs for the prevention and treatment of AD.
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Affiliation(s)
- Weidong Wu
- Basic Theory of Chinese Medicine, Heilongjiang University of Chinese Medicine, Harbin 150040, China; (W.W.); (J.Z.); (Y.W.)
| | - Jiahao Huang
- Department of Chinese Pharmacology, Heilongjiang University of Chinese Medicine, Harbin 150040, China;
| | - Pengfei Han
- Science and Education Section, Zhangjiakou First Hospital, Zhangjiakou 075041, China;
| | - Jian Zhang
- Basic Theory of Chinese Medicine, Heilongjiang University of Chinese Medicine, Harbin 150040, China; (W.W.); (J.Z.); (Y.W.)
| | - Yuxin Wang
- Basic Theory of Chinese Medicine, Heilongjiang University of Chinese Medicine, Harbin 150040, China; (W.W.); (J.Z.); (Y.W.)
| | - Fangfang Jin
- Department of Internal Medicine, Heilongjiang University of Chinese Medicine, Harbin 150040, China
| | - Yanyan Zhou
- Basic Theory of Chinese Medicine, Heilongjiang University of Chinese Medicine, Harbin 150040, China; (W.W.); (J.Z.); (Y.W.)
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Yan H, Feng L, Li M. The Role of Traditional Chinese Medicine Natural Products in β-Amyloid Deposition and Tau Protein Hyperphosphorylation in Alzheimer's Disease. Drug Des Devel Ther 2023; 17:3295-3323. [PMID: 38024535 PMCID: PMC10655607 DOI: 10.2147/dddt.s380612] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Accepted: 11/02/2023] [Indexed: 12/01/2023] Open
Abstract
Alzheimer's disease is a prevalent form of dementia among elderly individuals and is characterized by irreversible neurodegeneration. Despite extensive research, the exact causes of this complex disease remain unclear. Currently available drugs for Alzheimer's disease treatment are limited in their effectiveness, often targeting a single aspect of the disease and causing significant adverse effects. Moreover, these medications are expensive, placing a heavy burden on patients' families and society as a whole. Natural compounds and extracts offer several advantages, including the ability to target multiple pathways and exhibit high efficiency with minimal toxicity. These attributes make them promising candidates for the prevention and treatment of Alzheimer's disease. In this paper, we provide a summary of the common natural products used in Chinese medicine for different pathogeneses of AD. Our aim is to offer new insights and ideas for the further development of natural products in Chinese medicine and the treatment of AD.
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Affiliation(s)
- Huiying Yan
- Department of Neurology, the Third Affiliated Clinical Hospital of the Changchun University of Chinese Medicine, Changchun, Jilin Province, People’s Republic of China
| | - Lina Feng
- Shandong Key Laboratory of TCM Multi-Targets Intervention and Disease Control, the Second Affiliated Hospital of Shandong First Medical University, Taian, Shandong Province, People’s Republic of China
| | - Mingquan Li
- Department of Neurology, the Third Affiliated Clinical Hospital of the Changchun University of Chinese Medicine, Changchun, Jilin Province, People’s Republic of China
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Zheng Y, Zhang X, Zhang R, Wang Z, Gan J, Gao Q, Yang L, Xu P, Jiang X. Inflammatory signaling pathways in the treatment of Alzheimer's disease with inhibitors, natural products and metabolites (Review). Int J Mol Med 2023; 52:111. [PMID: 37800614 PMCID: PMC10558228 DOI: 10.3892/ijmm.2023.5314] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Accepted: 09/11/2023] [Indexed: 10/07/2023] Open
Abstract
The intricate nature of Alzheimer's disease (AD) pathogenesis poses a persistent obstacle to drug development. In recent times, neuroinflammation has emerged as a crucial pathogenic mechanism of AD, and the targeting of inflammation has become a viable approach for the prevention and management of AD. The present study conducted a comprehensive review of the literature between October 2012 and October 2022, identifying a total of 96 references, encompassing 91 distinct pharmaceuticals that have been investigated for their potential impact on AD by inhibiting neuroinflammation. Research has shown that pharmaceuticals have the potential to ameliorate AD by reducing neuroinflammation mainly through regulating inflammatory signaling pathways such as NF‑κB, MAPK, NLRP3, PPARs, STAT3, CREB, PI3K/Akt, Nrf2 and their respective signaling pathways. Among them, tanshinone IIA has been extensively studied for its anti‑inflammatory effects, which have shown significant pharmacological properties and can be applied clinically. Thus, it may hold promise as an effective drug for the treatment of AD. The present review elucidated the inflammatory signaling pathways of pharmaceuticals that have been investigated for their therapeutic efficacy in AD and elucidates their underlying mechanisms. This underscores the auspicious potential of pharmaceuticals in ameliorating AD by impeding neuroinflammation.
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Affiliation(s)
| | | | - Ruifeng Zhang
- Tianjin University of Traditional Chinese Medicine, Tianjin 301617, P.R. China
| | - Ziyu Wang
- Tianjin University of Traditional Chinese Medicine, Tianjin 301617, P.R. China
| | - Jiali Gan
- Tianjin University of Traditional Chinese Medicine, Tianjin 301617, P.R. China
| | - Qing Gao
- Tianjin University of Traditional Chinese Medicine, Tianjin 301617, P.R. China
| | - Lin Yang
- Tianjin University of Traditional Chinese Medicine, Tianjin 301617, P.R. China
| | - Pengjuan Xu
- Tianjin University of Traditional Chinese Medicine, Tianjin 301617, P.R. China
| | - Xijuan Jiang
- Tianjin University of Traditional Chinese Medicine, Tianjin 301617, P.R. China
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Wang F, Wan J, Liao Y, Liu S, Wei Y, Ouyang Z. Dendrobium species regulate energy homeostasis in neurodegenerative diseases: a review. FOOD SCIENCE AND HUMAN WELLNESS 2023. [DOI: 10.1016/j.fshw.2023.03.029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/08/2023]
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Rana AK, Kumar R, Shukla DN, Singh D. Lithium co-administration with rutin improves post-stroke neurological outcomes via suppressing Gsk-3β activity in a rat model. Free Radic Biol Med 2023; 207:107-119. [PMID: 37414348 DOI: 10.1016/j.freeradbiomed.2023.07.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Revised: 06/24/2023] [Accepted: 07/03/2023] [Indexed: 07/08/2023]
Abstract
Cerebral ischemic stroke is one of the leading causes of adult disability worldwide. Reperfusion is the only therapeutic option with a lot of side effects. In the current study, we investigated the efficacy of rutin and lithium co-treatment in improving post-stroke neurological outcomes in a transient global cerebral ischemia-reperfusion injury rat model. Middle-aged male rats were subjected to transient global cerebral ischemia-reperfusion. NORT and Y-maze were used to assess the cognitive processes. Lipid peroxidation, protein carbonylation, and nitric oxide assays were performed to study oxidative stress. The excitotoxicity index was calculated by HPLC. Real time-PCR and western blotting were performed to study gene and protein expressions. The co-administration of rutin and lithium improved the overall survival, recognition memory, spatial working memory, and neurological score following cerebral ischemia-reperfusion in rats. Further, a marked decrease in malonaldehyde, protein carbonyls, and nitric oxide levels was observed following combined treatment. The mRNA expression of antioxidant (Hmox1 and Nqo1) and pro-inflammatory (Il2, Il6, and Il1β) markers were significantly attenuated in the rutin and lithium co-administrated group. The treatment inhibited the Gsk-3β and maintained a normal pool of the downstream β-catenin and Nrf2 proteins. The results revealed that co-administration of rutin and lithium had a neuroprotective potential, suggesting it to be a viable treatment to overcome post-stroke deaths and neurological complications.
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Affiliation(s)
- Anil Kumar Rana
- Pharmacology and Toxicology Laboratory, Dietetics and Nutrition Technology Division, CSIR-Institute of Himalayan Bioresource Technology, Palampur, 176061, Himachal Pradesh, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Rajneesh Kumar
- Pharmacology and Toxicology Laboratory, Dietetics and Nutrition Technology Division, CSIR-Institute of Himalayan Bioresource Technology, Palampur, 176061, Himachal Pradesh, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Durgesh Nandan Shukla
- Pharmacology and Toxicology Laboratory, Dietetics and Nutrition Technology Division, CSIR-Institute of Himalayan Bioresource Technology, Palampur, 176061, Himachal Pradesh, India
| | - Damanpreet Singh
- Pharmacology and Toxicology Laboratory, Dietetics and Nutrition Technology Division, CSIR-Institute of Himalayan Bioresource Technology, Palampur, 176061, Himachal Pradesh, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India.
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Sionkowska A, Lewandowska K, Kurzawa M. Chitosan-Based Films Containing Rutin for Potential Cosmetic Applications. Polymers (Basel) 2023; 15:3224. [PMID: 37571118 PMCID: PMC10422548 DOI: 10.3390/polym15153224] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2023] [Revised: 07/23/2023] [Accepted: 07/27/2023] [Indexed: 08/13/2023] Open
Abstract
Chitosan is a polysaccharide with film-forming properties. Such properties are widely used for the preparation of beauty masks and wound-healing materials. In this work, chitosan-based films containing hyaluronic acid and rutin have been researched for potential cosmetic applications. Rutin was added to a chitosan solution in lactic acid, and then thin films were fabricated. The structure of the films was studied using FTIR spectroscopy. Surface properties were studied using an AFM microscope. The release of rutin from chitosan-based film was researched by the HPLC method. The properties of the skin, such as elasticity and moisturization, were studied using the Aramo TS 2 apparatus. It was found that the addition of rutin did not have an influence on the chitosan structure but affected its thermal stability. The roughness of the films was bigger after the addition of rutin to chitosan-based films. Skin elasticity and skin moisturization were somewhat improved after the topical application of the proposed chitosan-rutin mask. The maximum release of rutin was found after 20 min at pH 5.5, related to the pH of normal human skin. The average percentage of release from chitosan-based film containing hyaluronic acid was smaller than from chitosan-based films.
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Affiliation(s)
- Alina Sionkowska
- Department of Biomaterials and Cosmetic Chemistry, Faculty of Chemistry, Nicolaus Copernicus University in Torun, Gagarin 7 Street, 87100 Torun, Poland;
| | - Katarzyna Lewandowska
- Department of Biomaterials and Cosmetic Chemistry, Faculty of Chemistry, Nicolaus Copernicus University in Torun, Gagarin 7 Street, 87100 Torun, Poland;
| | - Marzanna Kurzawa
- Department of Analytical Chemistry and Applied Spectroscopy, Faculty of Chemistry, Nicolaus Copernicus University in Torun, Gagarin 7 Street, 87100 Torun, Poland;
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Zhang Y, Chen H, Li R, Sterling K, Song W. Amyloid β-based therapy for Alzheimer's disease: challenges, successes and future. Signal Transduct Target Ther 2023; 8:248. [PMID: 37386015 PMCID: PMC10310781 DOI: 10.1038/s41392-023-01484-7] [Citation(s) in RCA: 58] [Impact Index Per Article: 58.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2023] [Revised: 05/05/2023] [Accepted: 05/09/2023] [Indexed: 07/01/2023] Open
Abstract
Amyloid β protein (Aβ) is the main component of neuritic plaques in Alzheimer's disease (AD), and its accumulation has been considered as the molecular driver of Alzheimer's pathogenesis and progression. Aβ has been the prime target for the development of AD therapy. However, the repeated failures of Aβ-targeted clinical trials have cast considerable doubt on the amyloid cascade hypothesis and whether the development of Alzheimer's drug has followed the correct course. However, the recent successes of Aβ targeted trials have assuaged those doubts. In this review, we discussed the evolution of the amyloid cascade hypothesis over the last 30 years and summarized its application in Alzheimer's diagnosis and modification. In particular, we extensively discussed the pitfalls, promises and important unanswered questions regarding the current anti-Aβ therapy, as well as strategies for further study and development of more feasible Aβ-targeted approaches in the optimization of AD prevention and treatment.
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Affiliation(s)
- Yun Zhang
- National Clinical Research Center for Geriatric Disorders, Xuanwu Hospital, Capital Medical University, Beijing, China.
| | - Huaqiu Chen
- National Clinical Research Center for Geriatric Disorders, Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Ran Li
- The Second Affiliated Hospital and Yuying Children's Hospital, Institute of Aging, Key Laboratory of Alzheimer's Disease of Zhejiang Province, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Keenan Sterling
- Townsend Family Laboratories, Department of Psychiatry, The University of British Columbia, Vancouver, BC, V6T 1Z3, Canada
| | - Weihong Song
- National Clinical Research Center for Geriatric Disorders, Xuanwu Hospital, Capital Medical University, Beijing, China.
- The Second Affiliated Hospital and Yuying Children's Hospital, Institute of Aging, Key Laboratory of Alzheimer's Disease of Zhejiang Province, Wenzhou Medical University, Wenzhou, Zhejiang, China.
- Townsend Family Laboratories, Department of Psychiatry, The University of British Columbia, Vancouver, BC, V6T 1Z3, Canada.
- Oujiang Laboratory (Zhejiang Lab for Regenerative Medicine, Vision and Brain Health), Wenzhou, Zhejiang, China.
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Park JH, Hwang JW, Lee HJ, Jang GM, Jeong YJ, Cho J, Seo J, Hoe HS. Lomerizine inhibits LPS-mediated neuroinflammation and tau hyperphosphorylation by modulating NLRP3, DYRK1A, and GSK3α/β. Front Immunol 2023; 14:1150940. [PMID: 37435081 PMCID: PMC10331167 DOI: 10.3389/fimmu.2023.1150940] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2023] [Accepted: 06/05/2023] [Indexed: 07/13/2023] Open
Abstract
Introduction Lomerizine is a calcium channel blocker that crosses the blood-brain barrier and is used clinically in the treatment of migraines. However, whether lomerizine is beneficial in modulating neuroinflammatory responses has not been tested yet. Methods To assess the potential of lomerizine for repurposing as a treatment for neuroinflammation, we investigated the effects of lomerizine on LPS-induced proinflammatory responses in BV2 microglial cells, Alzheimer's disease (AD) excitatory neurons differentiated from induced pluripotent stem cells (iPSCs), and in LPS-treated wild type mice. Results In BV2 microglial cells, lomerizine pretreatment significantly reduced LPS-evoked proinflammatory cytokine and NLRP3 mRNA levels. Similarly, lomerizine pretreatment significantly suppressed the increases in Iba-1, GFAP, proinflammatory cytokine and NLRP3 expression induced by LPS in wild-type mice. In addition, lomerizine posttreatment significantly decreased LPS-stimulated proinflammatory cytokine and SOD2 mRNA levels in BV2 microglial cells and/or wild-type mice. In LPS-treated wild-type mice and AD excitatory neurons differentiated from iPSCs, lomerizine pretreatment ameliorated tau hyperphosphorylation. Finally, lomerizine abolished the LPS-mediated activation of GSK3α/β and upregulation of DYRK1A, which is responsible for tau hyperphosphorylation, in wild-type mice. Discussion These data suggest that lomerizine attenuates LPS-mediated neuroinflammatory responses and tau hyperphosphorylation and is a potential drug for neuroinflammation- or tauopathy-associated diseases.
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Affiliation(s)
- Jin-Hee Park
- Department of Neural Development and Disease, Korea Brain Research Institute (KBRI), Daegu, Republic of Korea
- Department of Brain Sciences, Daegu Gyeongbuk Institute of Science & Technology, Daegu, Republic of Korea
| | - Jeong-Woo Hwang
- Department of Neural Development and Disease, Korea Brain Research Institute (KBRI), Daegu, Republic of Korea
| | - Hyun-ju Lee
- Department of Neural Development and Disease, Korea Brain Research Institute (KBRI), Daegu, Republic of Korea
| | - Geum Mi Jang
- Department of Brain Sciences, Daegu Gyeongbuk Institute of Science & Technology, Daegu, Republic of Korea
| | - Yoo Joo Jeong
- Department of Neural Development and Disease, Korea Brain Research Institute (KBRI), Daegu, Republic of Korea
- Department of Brain Sciences, Daegu Gyeongbuk Institute of Science & Technology, Daegu, Republic of Korea
| | - Joonho Cho
- Department of Brain Sciences, Daegu Gyeongbuk Institute of Science & Technology, Daegu, Republic of Korea
| | - Jinsoo Seo
- Department of Brain Sciences, Daegu Gyeongbuk Institute of Science & Technology, Daegu, Republic of Korea
| | - Hyang-Sook Hoe
- Department of Neural Development and Disease, Korea Brain Research Institute (KBRI), Daegu, Republic of Korea
- Department of Brain Sciences, Daegu Gyeongbuk Institute of Science & Technology, Daegu, Republic of Korea
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Li S, Li Y, Sun W, Qin Z, Lu Y, Song Y, Ga M, Yuan F, Liu Q. Sanwei DouKou Decoction ameliorate Alzheimer disease by increasing endogenous neural stem cells proliferation through the Wnt/β-catenin signalling pathway. JOURNAL OF ETHNOPHARMACOLOGY 2023; 309:116364. [PMID: 36921910 DOI: 10.1016/j.jep.2023.116364] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Revised: 03/03/2023] [Accepted: 03/04/2023] [Indexed: 06/18/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Sanwei DouKou decoction (SDKD) is a traditional Chinese medicine (TCM) prescription derived from the Tibetan medical book "Si Bu Yi Dian" and is clinically used for the treatment of Alzheimer's disease (AD). However, the potential mechanism of SDKD treatment for AD remains elusive. AIM OF THE STUDY This study aims to explore the potential mechanism by which SDKD alleviates AD. MATERIALS AND METHODS Extracts of SDKD were identified with Gas chromatograph-mass spectrometer (GC-MS). 5 × FAD mice were treated with SDKD for 8 weeks. The efficacy of SDKD against AD was evaluated by in-vivo experiments. Morris water maze and contextual fear conditioning tests were used to detect the learning and memory ability of mice. Hematoxylin-eosin staining (H&E) staining was used to observe the pathological changes of brain tissue. Immunohistochemistry was used to detect the positive expression of Nestin in hippocampus. In in-vitro experiments, the Cell Counting Kit 8 (CCK-8) technique was used to detect cell viability, the proliferation of neural stem cells was detected by immunofluorescence staining, the intracellular protein expression was detected by Western Blot. RESULTS The results of this study suggested that SDKD may ameliorate AD. SDKD significantly shortened the escape latency of mice in the Morris water maze experiment, increased the number of times the mice crossed the target quadrant, and prolonged freezing time in the contextual fear memory experiment. SDKD also improved neuronal pathology in the hippocampus, decreased neuronal loss, and increased Nestin protein levels. Furthermore, in in-vitro experiments, SDKD could significantly increase Neural stem cells (NSCs) viability, promoted NSCs proliferation, and also effectively activated the Wnt/β-catenin signalling pathway, increased Wnt family member 3A (Wnt3a), β-catenin and CyclinD1 protein levels, activated the NSCs proliferation pathways in AD model mouse brain tissue. CONCLUSIONS The present study demonstrated that sanwei doukou decoction can ameliorate AD by increasing endogenous neural stem cells proliferation through the Wnt/β-catenin signalling pathway. Our observations justify the traditional use of SDKD for a treatment of AD in nervous system.
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Affiliation(s)
- Shuran Li
- Key Laboratory of Ethnomedicine of Ministry of Education, School of Pharmacy and Center on Translational Neuroscience, Minzu University of China, Beijing, China; Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, China
| | - Yongbiao Li
- Key Laboratory of Ethnomedicine of Ministry of Education, School of Pharmacy and Center on Translational Neuroscience, Minzu University of China, Beijing, China
| | - Wenjing Sun
- Key Laboratory of Ethnomedicine of Ministry of Education, School of Pharmacy and Center on Translational Neuroscience, Minzu University of China, Beijing, China
| | - Zhiping Qin
- Key Laboratory of Ethnomedicine of Ministry of Education, School of Pharmacy and Center on Translational Neuroscience, Minzu University of China, Beijing, China
| | - Yangyang Lu
- Key Laboratory of Ethnomedicine of Ministry of Education, School of Pharmacy and Center on Translational Neuroscience, Minzu University of China, Beijing, China
| | - Yujia Song
- Key Laboratory of Ethnomedicine of Ministry of Education, School of Pharmacy and Center on Translational Neuroscience, Minzu University of China, Beijing, China
| | - Man Ga
- Institue of Materia Medica, Chinese Academy of Medical Science & Peking Union Medical College, Beijing, China
| | - Farong Yuan
- Jinhe Tibetan Medicine Co., Ltd, Xining, China
| | - Qingshan Liu
- Key Laboratory of Ethnomedicine of Ministry of Education, School of Pharmacy and Center on Translational Neuroscience, Minzu University of China, Beijing, China.
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Wang J, Yu Z, Peng Y, Xu B. Insights into prevention mechanisms of bioactive components from healthy diets against Alzheimer's disease. J Nutr Biochem 2023:109397. [PMID: 37301484 DOI: 10.1016/j.jnutbio.2023.109397] [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: 12/26/2022] [Revised: 05/01/2023] [Accepted: 05/30/2023] [Indexed: 06/12/2023]
Abstract
Alzheimer's disease (AD) is a progressive neurodegenerative disease in which senile plaques, neurofibrillary tangles, insulin resistance, oxidative stress, chronic neuroinflammation, and abnormal neurotransmission are the potential mechanisms involved in its onset and development. Although it is still an intractable disorder, diet intervention has been developed as an innovative strategy for AD prevention. Some bioactive compounds and micronutrients from food, including soy isoflavones, rutin, vitamin B1, etc., have exhibited numerous neuronal health-promoting effects in both in vivo and in vitro studies. It is well known that their antiapoptotic, antioxidative, and anti-inflammatory properties prevent the neuronal or glial cells from injury or death, minimize oxidative damage, inhibit the production of proinflammatory cytokines by modulating typical signaling pathways of MAPK, NF-kβ, and TLR, and further reduce Aβ genesis and tau hyperphosphorylation. However, parts of the dietary components trigger AD-related proteins productions and inflammasome as well as inflammatory gene upregulation. This review summarized the neuroprotective or nerve damage-promoting role and underlying molecular mechanisms of flavonoids, vitamins, and fatty acids via the data from library databases, PubMed, and journal websites, which provides a comprehensive analysis of the prevention potential of these dietary components against AD.
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Affiliation(s)
- Jingwen Wang
- Food Science and Technology Program, Department of Life Sciences, BNU-HKBU United International College, Zhuhai, Guangdong 519087, China
| | - Zhiling Yu
- Centre for Cancer and Inflammation Research, School of Chinese Medicine, Hong Kong Baptist University, Hong Kong, China
| | - Ye Peng
- Faculty of Medicine, Macau University of Science and Technology, Taipa, Macao SAR, China
| | - Baojun Xu
- Food Science and Technology Program, Department of Life Sciences, BNU-HKBU United International College, Zhuhai, Guangdong 519087, China.
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Barreca MM, Alessandro R, Corrado C. Effects of Flavonoids on Cancer, Cardiovascular and Neurodegenerative Diseases: Role of NF-κB Signaling Pathway. Int J Mol Sci 2023; 24:ijms24119236. [PMID: 37298188 DOI: 10.3390/ijms24119236] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Revised: 05/17/2023] [Accepted: 05/23/2023] [Indexed: 06/12/2023] Open
Abstract
Flavonoids are polyphenolic phytochemical compounds found in many plants, fruits, vegetables, and leaves. They have a multitude of medicinal applications due to their anti-inflammatory, antioxidative, antiviral, and anticarcinogenic properties. Furthermore, they also have neuroprotective and cardioprotective effects. Their biological properties depend on the chemical structure of flavonoids, their mechanism of action, and their bioavailability. The beneficial effects of flavonoids have been proven for a variety of diseases. In the last few years, it is demonstrated that the effects of flavonoids are mediated by inhibiting the NF-κB (Nuclear Factor-κB) pathway. In this review, we have summarized the effects of some flavonoids on the most common diseases, such as cancer, cardiovascular, and human neurodegenerative diseases. Here, we collected all recent studies describing the protective and prevention role of flavonoids derived from plants by specifically focusing their action on the NF-κB signaling pathway.
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Affiliation(s)
- Maria Magdalena Barreca
- Department of Biomedicine, Neuroscience and Advanced Diagnostics (Bi.N.D.), Section of Biology and Genetics, University of Palermo, 90133 Palermo, Italy
| | - Riccardo Alessandro
- Department of Biomedicine, Neuroscience and Advanced Diagnostics (Bi.N.D.), Section of Biology and Genetics, University of Palermo, 90133 Palermo, Italy
| | - Chiara Corrado
- Department of Biomedicine, Neuroscience and Advanced Diagnostics (Bi.N.D.), Section of Biology and Genetics, University of Palermo, 90133 Palermo, Italy
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Zhang Y, Chen Y, Yuan S, Yu Q, Fu J, Chen L, Liu J, He Y. Effect of gastrodin against cognitive impairment and neurodegeneration in APP/PS1 mice via regulating gut microbiota-gut-brain axis. Exp Brain Res 2023; 241:1661-1673. [PMID: 37199774 DOI: 10.1007/s00221-023-06632-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Accepted: 05/10/2023] [Indexed: 05/19/2023]
Abstract
Gastrodin (Gas) has exhibited protective activity in neurological disorders. Here, we investigated the neuroprotective effect and potential mechanisms of Gas against cognitive impairment via regulating gut microbiota. APPswe/PSEN1dE9 transgenic (APP/PS1) mice were treated intragastrically with Gas for 4 weeks, and then cognitive deficits, deposits of amyloid-β (Aβ) and phosphorylation of tau were analyzed. The expression levels of insulin-like growth factor-1 (IGF-1) pathway-related proteins, such as cAMP response element-binding protein (CREB), were detected. Meanwhile, gut microbiota composition was evaluated. Our results showed that Gas treatment significantly improved cognitive deficits and Aβ deposition in APP/PS1 mice. Moreover, Gas treatment increased the level of Bcl-2 and decreased level of Bax and ultimately inhibited neuronal apoptosis. Gas treatment markedly increased the expression levels of IGF-1 and CREB in APP/PS1 mice. Moreover, Gas treatment improved abnormal composition and structure of gut microbiota in APP/PS1 mice. These findings revealed that Gas actively participated in regulating the IGF-1 pathway to inhibit neuronal apoptosis via the gut-brain axis and that it can be considered a new therapeutic strategy against Alzheimer's disease.
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Affiliation(s)
- Yuhe Zhang
- Department of Preventive Medicine, School of Public Health and Management, Wenzhou Medical University, Wenzhou, 325035, Zhejiang, China
| | - Yan Chen
- Department of Neurology, Zhuji Affiliated Hospital of Wenzhou Medical University, Shaoxing, 311899, Zhejiang, China
| | - Shushu Yuan
- Department of Preventive Medicine, School of Public Health and Management, Wenzhou Medical University, Wenzhou, 325035, Zhejiang, China
| | - Qingxia Yu
- Department of Preventive Medicine, School of Public Health and Management, Wenzhou Medical University, Wenzhou, 325035, Zhejiang, China
| | - Jianjiong Fu
- Department of Neurology, Zhuji Affiliated Hospital of Wenzhou Medical University, Shaoxing, 311899, Zhejiang, China
| | - Luyun Chen
- Department of Neurology, Zhuji Affiliated Hospital of Wenzhou Medical University, Shaoxing, 311899, Zhejiang, China
| | - Jiaming Liu
- Department of Preventive Medicine, School of Public Health and Management, Wenzhou Medical University, Wenzhou, 325035, Zhejiang, China.
| | - Yuping He
- Department of Neurology, Zhuji Affiliated Hospital of Wenzhou Medical University, Shaoxing, 311899, Zhejiang, China.
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Dong R, Zhang X, Liu Y, Zhao T, Sun Z, Liu P, Xiang Q, Xiong J, Du X, Yang X, Gui D, Xu Y. Rutin alleviates EndMT by restoring autophagy through inhibiting HDAC1 via PI3K/AKT/mTOR pathway in diabetic kidney disease. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2023; 112:154700. [PMID: 36774842 DOI: 10.1016/j.phymed.2023.154700] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Revised: 01/09/2023] [Accepted: 02/03/2023] [Indexed: 06/18/2023]
Abstract
BACKGROUND Diabetic kidney disease (DKD) is a primary microvascular complication of diabetes. However, a complete cure for DKD has not yet been found. Although there is evidence that Rutin can delay the onset of DKD, the underlying mechanism remains unclear. PURPOSE To investigate the renoprotective effect of Rutin in the process of DKD and to explore its potential molecular mechanisms. METHODS Db/db mice and high glucose (HG)-induced human renal glomerular endothelial cells (GEnCs) were used as in vivo and in vitro models, respectively. Western blot (WB), Immunohistochemistry (IHC)and Immunofluorescence (IF) staining were used to identify the expression level of proteins associated with endothelial-to-mesenchymal transition (EndMT) and autophagy. Tandem Mass Tag (TMT)-based proteomics analysis was utilized to reveal the mechanism of Rutin in DKD. Transfection with small interfering RNA (siRNA) to reveal the role of histone deacetylase 1 (HDAC1) in HG-induced GEnCs. RESULTS Following 8 weeks of Rutin administration, db/db mice's kidney function and structure significantly improved. In HG-induced GEnCs, activation of autophagy attenuates cellular EndMT. Rutin could alleviate EndMT and restore autophagy in vivo and in vitro models. Proteomics analysis results showed that HDAC1 significantly downregulated in the 200 mg/kg/d Rutin group compared with the db/db group. Transfection with si-HDAC1 in GEnCs partially blocked HG-induced EndMT and restored autophagy. Furthermore, Rutin inhibits the phosphorylation of the PI3K / AKT/ mTOR pathway. HDAC1 overexpression was suppressed in HG-induced GEnCs after using Rapamycin, a specific mTOR inhibitor, verifying the correlation between mTOR and HDAC1. CONCLUSION Rutin alleviates EndMT by restoring autophagy through inhibiting HDAC1 via the PI3K/AKT/mTOR pathway in DKD.
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Affiliation(s)
- Ruixue Dong
- Faculty of Pharmacy, Macau University of Science and Technology, Avenida Wai Long, Taipa, Macao, China
| | - Xi Zhang
- Faculty of Chinese Medicine, Macau University of Science and Technology, Avenida Wai Long, Taipa, Macao, China
| | - Yadi Liu
- Faculty of Chinese Medicine, Macau University of Science and Technology, Avenida Wai Long, Taipa, Macao, China
| | - Tingting Zhao
- Faculty of Chinese Medicine, Macau University of Science and Technology, Avenida Wai Long, Taipa, Macao, China
| | - Zhongyan Sun
- Faculty of Chinese Medicine, Macau University of Science and Technology, Avenida Wai Long, Taipa, Macao, China
| | - Peiyu Liu
- Faculty of Chinese Medicine, Macau University of Science and Technology, Avenida Wai Long, Taipa, Macao, China
| | - Qian Xiang
- Faculty of Chinese Medicine, Macau University of Science and Technology, Avenida Wai Long, Taipa, Macao, China
| | - Jianfeng Xiong
- Faculty of Chinese Medicine, Macau University of Science and Technology, Avenida Wai Long, Taipa, Macao, China
| | - Xinwen Du
- Faculty of Chinese Medicine, Macau University of Science and Technology, Avenida Wai Long, Taipa, Macao, 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
| | - Dingkun Gui
- Department of Nephrology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China.
| | - Youhua Xu
- Faculty of Pharmacy, Macau University of Science and Technology, Avenida Wai Long, Taipa, Macao, China; Faculty of Chinese Medicine, Macau University of Science and Technology, Avenida Wai Long, Taipa, Macao, China; Department of Endocrinology, Zhuhai Hospital of Integrated Traditional Chinese and Western Medicine, Zhuhai, China; Zhuhai MUST Science and Technology Research Institute, Macau University of Science and Technology, Hengqin, Zhuhai, China.
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Zhang M, Ding ZX, Huang W, Luo J, Ye S, Hu SL, Zhou P, Cai B. Chrysophanol exerts a protective effect against Aβ 25-35-induced Alzheimer's disease model through regulating the ROS/TXNIP/NLRP3 pathway. Inflammopharmacology 2023; 31:1511-1527. [PMID: 36976486 DOI: 10.1007/s10787-023-01201-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Accepted: 03/18/2023] [Indexed: 03/29/2023]
Abstract
BACKGROUND The primary pathogenic factors of Alzheimer's disease (AD) have been identified as oxidative stress, inflammatory damage, and apoptosis. Chrysophanol (CHR) has a good neuroprotective effect on AD, however, the potential mechanism of CHR remains unclear. PURPOSE In this study, we focused on the ROS/TXNIP/NLRP3 pathway to determine whether CHR regulates oxidative stress and neuroinflammation. METHODS D-galactose and Aβ25-35 combination were used to build an in vivo model of AD, and the Y-maze test was used to evaluate the learning and memory function of rats. Morphological changes of neurons in the rat hippocampus were observed using hematoxylin and eosin (HE) staining. AD cell model was established by Aβ25-35 in PC12 cells. The DCFH-DA test identified reactive oxygen species (ROS). The apoptosis rate was determined using Hoechst33258 and flow cytometry. In addition, the levels of MDA, LDH, T-SOD, CAT, and GSH in serum, cell, and cell culture supernatant were detected by colorimetric method. The protein and mRNA expressions of the targets were detected by Western blot and RT-PCR. Finally, molecular docking was used to further verify the in vivo and in vitro experimental results. RESULTS CHR could significantly improve learning and memory impairment, reduce hippocampal neuron damage, and reduce ROS production and apoptosis in AD rats. CHR could improve the survival rate, and reduce the oxidative stress and apoptosis in the AD cell model. Moreover, CHR significantly decreased the levels of MDA and LDH, and increased the activities of T-SOD, CAT, and GSH in the AD model. Mechanically, CHR significantly reduced the protein and mRNA expression of TXNIP, NLRP3, Caspase-1, IL-1β, and IL-18, and increase TRX. CONCLUSIONS CHR exerts neuroprotective effects on the Aβ25-35-induced AD model mainly by reducing oxidative stress and neuroinflammation, and the mechanism may be related to ROS/TXNIP/NLRP3 signaling pathway.
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Affiliation(s)
- Meng Zhang
- Department of Integrated Traditional Chinese and Western Medicine, Key Laboratory of Xin'an Medicine (Anhui University of Chinese Medicine), Ministry of Education, Anhui University of Chinese Medicine, Hefei, 230012, People's Republic of China
| | - Zhi-Xian Ding
- Department of Integrated Traditional Chinese and Western Medicine, Key Laboratory of Xin'an Medicine (Anhui University of Chinese Medicine), Ministry of Education, Anhui University of Chinese Medicine, Hefei, 230012, People's Republic of China
| | - Wei Huang
- Department of Integrated Traditional Chinese and Western Medicine, Key Laboratory of Xin'an Medicine (Anhui University of Chinese Medicine), Ministry of Education, Anhui University of Chinese Medicine, Hefei, 230012, People's Republic of China
| | - Jing Luo
- Department of Integrated Traditional Chinese and Western Medicine, Key Laboratory of Xin'an Medicine (Anhui University of Chinese Medicine), Ministry of Education, Anhui University of Chinese Medicine, Hefei, 230012, People's Republic of China
| | - Shu Ye
- Department of Integrated Traditional Chinese and Western Medicine, Key Laboratory of Xin'an Medicine (Anhui University of Chinese Medicine), Ministry of Education, Anhui University of Chinese Medicine, Hefei, 230012, People's Republic of China
| | - Sheng-Lin Hu
- Department of Integrated Traditional Chinese and Western Medicine, Key Laboratory of Xin'an Medicine (Anhui University of Chinese Medicine), Ministry of Education, Anhui University of Chinese Medicine, Hefei, 230012, People's Republic of China
| | - Peng Zhou
- Department of Integrated Traditional Chinese and Western Medicine, Key Laboratory of Xin'an Medicine (Anhui University of Chinese Medicine), Ministry of Education, Anhui University of Chinese Medicine, Hefei, 230012, People's Republic of China.
| | - Biao Cai
- Department of Integrated Traditional Chinese and Western Medicine, Key Laboratory of Xin'an Medicine (Anhui University of Chinese Medicine), Ministry of Education, Anhui University of Chinese Medicine, Hefei, 230012, People's Republic of China.
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Tau-aggregation inhibitors derived from Streptomyces tendae MCCC 1A01534 protect HT22 cells against okadaic acid-induced damage. Int J Biol Macromol 2023; 231:123170. [PMID: 36621732 DOI: 10.1016/j.ijbiomac.2023.123170] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Revised: 12/20/2022] [Accepted: 01/03/2023] [Indexed: 01/07/2023]
Abstract
Alzheimer's disease (AD) is an age-related neurodegenerative disease characterized by tau aggregating into neurofibrillary tangles. Targeting tau aggregation is one of the most critical strategies for AD treatment and prevention. Herein, a high-throughput screening of tau-aggregation inhibitors was performed by thioflavin T (ThT) fluorescence assay and tauR3 peptides. According to bioactivity-guided isolation, homoprejadomycin (1) was obtained from the marine bacterium Streptomyces tendae MCCC 1A01534. Two new stable derivatives, 2 and 3, were yielded in a one-step reaction. By ThT assay, transmission electron microscopy, and circular dichroism, we demonstrated that the angucyclinones 2 and 3 inhibited tau aggregation and disaggregated tau fibrils. In the presence of 2, native tauR3 peptides maintained the disorder conformation, whereas the tauR3 aggregates reduced β-sheet structures. And compound 2 was confirmed to inhibit the aggregation of full-length 2N4R tau protein. Furthermore, 2 with low cytotoxicity protected HT22 cells from okadaic acid-induced damage by suppressing tau aggregates. These results indicated that 2 was a promising lead structure with tau therapeutic potency for AD treatment.
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Khan S, Hassan MI, Shahid M, Islam A. Nature's Toolbox Against Tau Aggregation: An Updated Review of Current Research. Ageing Res Rev 2023; 87:101924. [PMID: 37004844 DOI: 10.1016/j.arr.2023.101924] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Revised: 03/21/2023] [Accepted: 03/30/2023] [Indexed: 04/03/2023]
Abstract
Tau aggregation is a hallmark of several neurodegenerative disorders, such as Alzheimer's disease (AD), frontotemporal dementia, and progressive supranuclear palsy. Hyperphosphorylated tau is believed to contribute to the degeneration of neurons and the development of these complex diseases. Therefore, one potential treatment for these illnesses is to prevent or counteract tau aggregation. In recent years, interest has been increasing in developing nature-derived tau aggregation inhibitors as a potential treatment for neurodegenerative disorders. Researchers have become increasingly interested in natural compounds with multifunctional features, such as flavonoids, alkaloids, resveratrol, and curcumin, since these molecules can interact simultaneously with the various targets of AD. Recent studies have demonstrated that several natural compounds can inhibit tau aggregation and promote the disassembly of pre-formed tau aggregates. Nature-derived tau aggregation inhibitors hold promise as a potential treatment for neurodegenerative disorders. However, it is important to note that more research is needed to fully understand the mechanisms by which these compounds exert their effects and their safety and efficacy in preclinical and clinical studies. Nature-derived inhibitors of tau aggregation are a promising new direction in the research of neurodegenerative complexities. This review focuses on the natural products that have proven to be a rich supply for inhibitors in tau aggregation and their uses in neurodegenerative complexities, including AD.
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44
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Rutin, a Flavonoid Compound Derived from Garlic, as a Potential Immunomodulatory and Anti-Inflammatory Agent against Murine Schistosomiasis mansoni. Nutrients 2023; 15:nu15051206. [PMID: 36904204 PMCID: PMC10005531 DOI: 10.3390/nu15051206] [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: 01/10/2023] [Revised: 02/15/2023] [Accepted: 02/26/2023] [Indexed: 03/08/2023] Open
Abstract
Schistosomiasis is a tropical disease caused by trematode worms. The inflammatory response of the host to schistosome eggs leads to formation of granuloma in the liver and intestine. Praziquantel (PZQ) is still an effective treatment for schistosomiasis, however resistance development may reduce its efficacy. The current study investigated the possible immunomodulatory and anti-inflammatory action of rutin, a natural flavonoid compound isolated from garlic, on liver fibrotic markers in mice infected with S. mansoni in comparison to PZQ. Male albino CD1 mice were infected with 100 ± 2 S. mansoni cercariae/mouse and treated with garlic, rutin, or PZQ. At the end of the experiment, the liver and intestines were harvested for parasitological and histological assessment and to analyze the proinflammatory cytokine. Rutin significantly affects the pathological alterations caused by Schistosoma in the liver. This may be partially explained by a decrease in the number of eggs trapped in the tissues of the liver and a modification in the serum levels of certain cytokines, which are implicated in the formation of Schistosoma granuloma. In conclusion, rutin has strong anti-schistosome properties in vivo, raising the possibility that rutin might be further investigated as a therapy for S. mansoni.
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Tau; One Protein, So Many Diseases. BIOLOGY 2023; 12:biology12020244. [PMID: 36829521 PMCID: PMC9953016 DOI: 10.3390/biology12020244] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Revised: 01/30/2023] [Accepted: 01/31/2023] [Indexed: 02/08/2023]
Abstract
Tau, a member of the microtubule-associated proteins, is a known component of the neuronal cytoskeleton; however, in the brain tissue, it is involved in other vital functions beyond maintaining the cellular architecture. The pathologic tau forms aggregates inside the neurons and ultimately forms the neurofibrillary tangles. Intracellular and extracellular accumulation of different tau isoforms, including dimers, oligomers, paired helical filaments and tangles, lead to a highly heterogenous group of diseases named "Tauopathies". About twenty-six different types of tauopathy diseases have been identified that have different clinical phenotypes or pathophysiological characteristics. Although all these diseases are identified by tau aggregation, they are distinguishable based on the specific tau isoforms, the affected cell types and the brain regions. The neuropathological and phenotypical heterogeneity of these diseases impose significant challenges for discovering new diagnostic and therapeutic strategies. Here, we review the recent literature on tau protein and the pathophysiological mechanisms of tauopathies. This article mainly focuses on physiologic and pathologic tau and aims to summarize the upstream and downstream events and discuss the current diagnostic approaches and therapeutic strategies.
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46
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Punmiya A, Prabhu A. Structural fingerprinting of pleiotropic flavonoids for multifaceted Alzheimer's disease. Neurochem Int 2023; 163:105486. [PMID: 36641110 DOI: 10.1016/j.neuint.2023.105486] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2022] [Revised: 12/13/2022] [Accepted: 01/09/2023] [Indexed: 01/13/2023]
Abstract
Alzheimer's disease has emerged as one of the most challenging neurodegenerative diseases associated with dementia, loss of cognitive functioning and memory impairment. Despite enormous efforts to identify disease modifying technologies, the repertoire of currently approved drugs consists of a few symptomatic candidates that are not capable of halting disease progression. Moreover, these single mechanism drugs target only a small part of the pathological cascade and do not address most of the etiological basis of the disease. Development of therapies that are able to simultaneously tackle all the multiple interlinked causative factors such as amyloid protein aggregation, tau hyperphosphorylation, cholinergic deficit, oxidative stress, metal dyshomeostasis and neuro-inflammation has become the focus of intensive research in this domain. Flavonoids are natural phytochemicals that have demonstrated immense potential as medicinal agents due to their multiple beneficial therapeutic effects. The polypharmacological profile of flavonoids aligns well with the multifactorial pathological landscape of Alzheimer's disease, making them promising candidates to overcome the challenges of this neurodegenerative disorder. This review presents a detailed overview of the pleiotropic biology of flavonoids favourable for Alzheimer therapeutics and the structural basis for these effects. Structure activity trends for several flavonoid classes such as flavones, flavonols, flavanones, isoflavones, flavanols and anthocyanins are comprehensively analyzed in detail and presented.
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Affiliation(s)
- Amisha Punmiya
- Department of Quality Assurance, SVKM's Dr. Bhanuben Nanavati College of Pharmacy, Mumbai, India
| | - Arati Prabhu
- Department of Quality Assurance, SVKM's Dr. Bhanuben Nanavati College of Pharmacy, Mumbai, India.
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Hauser KF, Ohene-Nyako M, Knapp PE. Accelerated brain aging with opioid misuse and HIV: New insights on the role of glially derived pro-inflammation mediators and neuronal chloride homeostasis. Curr Opin Neurobiol 2023; 78:102653. [PMID: 36584655 PMCID: PMC9933139 DOI: 10.1016/j.conb.2022.102653] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Revised: 10/26/2022] [Accepted: 11/10/2022] [Indexed: 12/29/2022]
Abstract
Opioid use disorder (OUD) has become a national crisis and contributes to the spread of human immunodeficiency virus (HIV) infection. Emerging evidence and advances in experimental models, methodology, and our understanding of disease processes at the molecular and cellular levels reveal that opioids per se can directly exacerbate the pathophysiology of neuroHIV. Despite substantial inroads, the impact of OUD on the severity, development, and prognosis of neuroHIV and HIV-associated neurocognitive disorders is not fully understood. In this review, we explore current evidence that OUD and neuroHIV interact to accelerate cognitive deficits and enhance the neurodegenerative changes typically seen with aging, through their effects on neuroinflammation. We suggest new thoughts on the processes that may underlie accelerated brain aging, including dysregulation of neuronal inhibition, and highlight findings suggesting that opioids, through actions at the μ-opioid receptor, interact with HIV in the central nervous system to promote unique structural and functional comorbid deficits not seen in either OUD or neuroHIV alone.
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Affiliation(s)
- Kurt F Hauser
- Department of Pharmacology and Toxicology, School of Medicine, Virginia Commonwealth University, Richmond, VA 23298-0613, USA; Department of Anatomy and Neurobiology, School of Medicine, Virginia Commonwealth University, Richmond, VA 23298-0709, USA; Institute for Drug and Alcohol Studies, Virginia Commonwealth University, 203 East Cary Street, Richmond, Virginia 23298-0059, USA
| | - Michael Ohene-Nyako
- Department of Pharmacology and Toxicology, School of Medicine, Virginia Commonwealth University, Richmond, VA 23298-0613, USA
| | - Pamela E Knapp
- Department of Pharmacology and Toxicology, School of Medicine, Virginia Commonwealth University, Richmond, VA 23298-0613, USA; Department of Anatomy and Neurobiology, School of Medicine, Virginia Commonwealth University, Richmond, VA 23298-0709, USA; Institute for Drug and Alcohol Studies, Virginia Commonwealth University, 203 East Cary Street, Richmond, Virginia 23298-0059, USA.
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Sun XY, Yu XL, Zhu J, Li LJ, Zhang L, Huang YR, Liu DQ, Ji M, Sun X, Zhang LX, Zhou WW, Zhang D, Jiao J, Liu RT. Fc effector of anti-Aβ antibody induces synapse loss and cognitive deficits in Alzheimer's disease-like mouse model. Signal Transduct Target Ther 2023; 8:30. [PMID: 36693826 PMCID: PMC9873795 DOI: 10.1038/s41392-022-01273-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Revised: 11/10/2022] [Accepted: 11/16/2022] [Indexed: 01/26/2023] Open
Abstract
Passive immunotherapy is one of the most promising interventions for Alzheimer's disease (AD). However, almost all immune-modulating strategies fail in clinical trials with unclear causes although they attenuate neuropathology and cognitive deficits in AD animal models. Here, we showed that Aβ-targeting antibodies including their lgG1 and lgG4 subtypes induced microglial engulfment of neuronal synapses by activating CR3 or FcγRIIb via the complex of Aβ, antibody, and complement. Notably, anti-Aβ antibodies without Fc fragment, or with blockage of CR3 or FcγRIIb, did not exert these adverse effects. Consistently, Aβ-targeting antibodies, but not their Fab fragments, significantly induced acute microglial synapse removal and rapidly exacerbated cognitive deficits and neuroinflammation in APP/PS1 mice post-treatment, whereas the memory impairments in mice were gradually rescued thereafter. Since the recovery rate of synapses in humans is much lower than that in mice, our findings may clarify the variances in the preclinical and clinical studies assessing AD immunotherapies. Therefore, Aβ-targeting antibodies lack of Fc fragment, or with reduced Fc effector function, may not induce microglial synaptic pruning, providing a safer and more efficient therapeutic alternative for passive immunotherapy for AD.
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Affiliation(s)
- Xiao-ying Sun
- grid.9227.e0000000119573309State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190 China ,grid.410726.60000 0004 1797 8419School of Chemistry and Chemical Engineering, University of Chinese Academy of Science, Beijing, 100049 China
| | - Xiao-lin Yu
- grid.9227.e0000000119573309State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190 China ,grid.9227.e0000000119573309Innovation Academy for Green Manufacture Institute, Chinese Academy of Sciences, Beijing, 100190 China
| | - Jie Zhu
- grid.9227.e0000000119573309State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190 China ,grid.410726.60000 0004 1797 8419School of Chemistry and Chemical Engineering, University of Chinese Academy of Science, Beijing, 100049 China
| | - Ling-jie Li
- grid.9227.e0000000119573309State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190 China ,grid.410726.60000 0004 1797 8419School of Chemistry and Chemical Engineering, University of Chinese Academy of Science, Beijing, 100049 China
| | - Lun Zhang
- grid.9227.e0000000119573309State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190 China ,grid.9227.e0000000119573309Innovation Academy for Green Manufacture Institute, Chinese Academy of Sciences, Beijing, 100190 China
| | - Ya-ru Huang
- grid.9227.e0000000119573309State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190 China ,grid.410726.60000 0004 1797 8419School of Chemistry and Chemical Engineering, University of Chinese Academy of Science, Beijing, 100049 China
| | - Dong-qun Liu
- grid.9227.e0000000119573309State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190 China
| | - Mei Ji
- grid.9227.e0000000119573309State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190 China
| | - Xun Sun
- grid.9227.e0000000119573309State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190 China
| | - Ling-xiao Zhang
- grid.9227.e0000000119573309State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190 China
| | - Wei-wei Zhou
- grid.9227.e0000000119573309State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190 China ,grid.9227.e0000000119573309Innovation Academy for Green Manufacture Institute, Chinese Academy of Sciences, Beijing, 100190 China
| | - Dongming Zhang
- grid.9227.e0000000119573309State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, 100101 China
| | - Jianwei Jiao
- grid.9227.e0000000119573309State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, 100101 China
| | - Rui-tian Liu
- grid.9227.e0000000119573309State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190 China ,grid.9227.e0000000119573309Innovation Academy for Green Manufacture Institute, Chinese Academy of Sciences, Beijing, 100190 China
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Xu X, Xu H, Zhang Z. Cerebral amyloid angiopathy-related cardiac injury: Focus on cardiac cell death. Front Cell Dev Biol 2023; 11:1156970. [PMID: 36910141 PMCID: PMC9998697 DOI: 10.3389/fcell.2023.1156970] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Accepted: 02/16/2023] [Indexed: 03/14/2023] Open
Abstract
Cerebral amyloid angiopathy (CAA) is a kind of disease in which amyloid β (Aβ) and other amyloid protein deposits in the cerebral cortex and the small blood vessels of the brain, causing cerebrovascular and brain parenchymal damage. CAA patients are often accompanied by cardiac injury, involving Aβ, tau and transthyroxine amyloid (ATTR). Aβ is the main injury factor of CAA, which can accelerate the formation of coronary artery atherosclerosis, aortic valve osteogenesis calcification and cardiomyocytes basophilic degeneration. In the early stage of CAA (pre-stroke), the accompanying locus coeruleus (LC) amyloidosis, vasculitis and circulating Aβ will induce first hit to the heart. When the CAA progresses to an advanced stage and causes a cerebral hemorrhage, the hemorrhage leads to autonomic nervous function disturbance, catecholamine surges, and systemic inflammation reaction, which can deal the second hit to the heart. Based on the brain-heart axis, CAA and its associated cardiac injury can create a vicious cycle that accelerates the progression of each other.
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Affiliation(s)
- Xiaofang Xu
- Department of Critical Care Medicine, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Huikang Xu
- Department of Critical Care Medicine, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Zhaocai Zhang
- Department of Critical Care Medicine, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China.,Key Laboratory of the Diagnosis and Treatment for Severe Trauma and Burn of Zhejiang Province, Hangzhou, China.,Zhejiang Province Clinical Research Center for Emergency and Critical care medicine, Hangzhou, China
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Shen ZJ, Fu YB, Hou JL, Lin LN, Wang XY, Li CY, Yang YX. Integrating network pharmacology, UPLC-Q-TOF-MS and molecular docking to investigate the effect and mechanism of Chuanxiong Renshen decoction against Alzheimer's disease. Chin Med 2022; 17:143. [PMID: 36566207 PMCID: PMC9789652 DOI: 10.1186/s13020-022-00698-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2022] [Accepted: 12/08/2022] [Indexed: 12/25/2022] Open
Abstract
BACKGROUND AND AIM Chuanxiong Renshen decoction (CRD) is a traditional Chinese medicine compound used to treat Alzheimer's disease (AD). However, the effects and active ingredients of CRD and its mechanism have not been clarified. We aimed to determine the neuroprotective effects of CRD in a triple-transgenic mouse model of AD (3 × Tg-AD) and investigate the possible active ingredients and their mechanisms. METHODS Morris water maze (MWM) tests were used to determine the protective effect of CRD on learning and memory ability. Afterward, we used brain tissue staining, immunofluorescent staining and western blotting to detect the neuroprotective effects of CRD. Ultraperformance liquid-chromatography-quadrupole-time-of-flight tandem mass spectrometry (UPLC-Q-TOF-MS) was applied to determine the ingredients of CRD, and the potential AD targets were obtained from DisGeNET and the GeneCards database. The protein‒protein interaction (PPI) network was built with the additional use of STRING 11.0. Metascape was used in the pathway enrichment analysis. Discovery Studio 2016 (DS) software was used to analyze the binding ability of CRD and AD-related genes. Finally, we verified the regulatory effect of CRD on the predicted core targets EGFR and CASP3 by western blotting. RESULTS Our study indicated that CRD can significantly improve learning and memory, reduce the expression of Aβ and protect neurons. A total of 95 ingredients were identified in the CRD. Then, 25 ingredients were identified in serum, and 5 ingredients were identified in the brain tissue homogenate. PPI network analysis identified CASP3, EGFR, APP, CNR1, HIF1A, PTGS2 and MTOR as hub targets. KEGG and GO analyses revealed that the TNF signaling pathway and MAPK signaling pathway were enriched in multiple targets. The results of molecular docking proved that the binding of the ingredients with potential key targets was excellent. The western blotting results showed that CRD could significantly reduce the expression of CASP3 and EGFR in the hippocampus of 3 × Tg-AD mice. Combined with literature analysis, we assumed the neuroprotective effect of CRD on AD may occur through regulation of the MAPK signaling pathway. CONCLUSION CRD significantly alleviated injury in 3 × Tg-AD mice. The possible active ingredients are ferulic acid, rutin, ginsenoside Rg1 and panaxydol. The therapeutic effect of CRD on AD is achieved through the downregulation of CASP3 and EGFR. The neuroprotective effect of CRD on AD may occur through regulation of the MAPK signaling pathway.
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Affiliation(s)
- Zhuo Jun Shen
- grid.506977.a0000 0004 1757 7957School of Pharmacy, Hangzhou Medical College, Hangzhou, China
| | - Yun Bo Fu
- grid.268505.c0000 0000 8744 8924Department of Pharmacy, Zhejiang Chinese Medical University, Hangzhou, China
| | - Jin Ling Hou
- grid.506977.a0000 0004 1757 7957School of Pharmacy, Hangzhou Medical College, Hangzhou, China
| | - Lu Ning Lin
- grid.268505.c0000 0000 8744 8924Department of Pharmacy, Zhejiang Chinese Medical University, Hangzhou, China
| | - Xiao Yan Wang
- grid.506977.a0000 0004 1757 7957School of Pharmacy, Hangzhou Medical College, Hangzhou, China
| | - Chang Yu Li
- grid.268505.c0000 0000 8744 8924Department of Pharmacy, Zhejiang Chinese Medical University, Hangzhou, China
| | - Yuan Xiao Yang
- grid.506977.a0000 0004 1757 7957School of Basic Medical Sciences and Forensic Medicine, Hangzhou Medical College, Hangzhou, China
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