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Jiao JJ, Hu Y, Cui YJ, Tuo CM, Wang YX, Li XY, Zhang Y, Wu MN. Anisomycin alleviates cognitive impairments and pathological features in 3xTg-AD mice. Neuropharmacology 2024; 261:110159. [PMID: 39303856 DOI: 10.1016/j.neuropharm.2024.110159] [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: 07/28/2024] [Revised: 08/29/2024] [Accepted: 09/12/2024] [Indexed: 09/22/2024]
Abstract
Neuroinflammation plays a pivotal role in the pathogenesis of Alzheimer's disease (AD). Anisomycin is a pyrrolidine antibiotic isolated from Streptomyces griseolus, which is an efficient anti-inflammatory agent that functions both in vivo and in vitro. However, it is not clear whether anisomycin can exert neuroprotective effect in AD. In the present study, anisomycin was intragastrically administrated to female triple-transgenic AD (3xTg-AD) model mice, then Morris water maze test was used to observe the long-term spatial memory of mice, the in vivo hippocampal field potential recording was performed to evaluate the synaptic plasticity, the Western blot and immunofluorescence were employed to detect pathological changes, and the bioinformatics analysis was used to predict the potential target of anisomycin exerting effects in AD. The results showed that anisomycin ameliorated the long-term spatial memory deficits, improved LTP depression and increased the expression of PSD-95, reduced the Aβ and tau pathologies, and alleviated the activation of microglia and astrocytes in the brains of 3xTg-AD mice. In addition, the results from bioinformatics analysis showed that the potential target of anisomycin focused on inflammatory pathway. These results indicated that anisomycin exerts neuroprotective effects in 3xTg-AD mice by alleviating neuroinflammation, but the potential mechanism of anisomycin exerting neuroprotective effects needs to be further investigated.
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Affiliation(s)
- Juan-Juan Jiao
- Department of Physiology Shanxi Medical University, Taiyuan, China; Key Laboratory of Cellular Physiology, Ministry of Education, Shanxi Medical University, Taiyuan, China; Key Laboratory of Cellular Physiology in Shanxi Province, Shanxi Medical University, Taiyuan, China
| | - Yang Hu
- Department of Pharmacology, Shanxi Medical University, Taiyuan, China
| | - Yu-Jia Cui
- Department of Physiology Shanxi Medical University, Taiyuan, China; Key Laboratory of Cellular Physiology, Ministry of Education, Shanxi Medical University, Taiyuan, China; Key Laboratory of Cellular Physiology in Shanxi Province, Shanxi Medical University, Taiyuan, China
| | - Chun-Mei Tuo
- Department of Physiology Shanxi Medical University, Taiyuan, China; Key Laboratory of Cellular Physiology, Ministry of Education, Shanxi Medical University, Taiyuan, China; Key Laboratory of Cellular Physiology in Shanxi Province, Shanxi Medical University, Taiyuan, China
| | - Yi-Xuan Wang
- School of Basic Medicine, Shanxi Medical University, Taiyuan, China
| | - Xin-Yi Li
- Department of Neurology, Third Hospital of Shanxi Medical University, Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences Tongji Shanxi Hospital, Taiyuan, China
| | - Yi Zhang
- Department of Pharmacology, Shanxi Medical University, Taiyuan, China.
| | - Mei-Na Wu
- Department of Physiology Shanxi Medical University, Taiyuan, China; Key Laboratory of Cellular Physiology, Ministry of Education, Shanxi Medical University, Taiyuan, China; Key Laboratory of Cellular Physiology in Shanxi Province, Shanxi Medical University, Taiyuan, China.
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2
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Xie D, Ma Y, Gao C, Pan S. Piezo1 activation on microglial cells exacerbates demyelination in sepsis by influencing the CCL25/GRP78 pathway. Int Immunopharmacol 2024; 142:113045. [PMID: 39236454 DOI: 10.1016/j.intimp.2024.113045] [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: 05/20/2024] [Revised: 08/27/2024] [Accepted: 08/27/2024] [Indexed: 09/07/2024]
Abstract
BACKGROUND In sepsis-associated encephalopathy (SAE), the activation of microglial cells and ensuing neuroinflammation are important in the underlying pathological mechanisms. Increasing evidence suggests that the protein Piezo1 functions as a significant regulator of neuroinflammation. However, the influence of Piezo1 on microglial cells in the context of SAE has not yet been determined. This study aims to investigate the role of Piezo1 in microglial cells in the context of SAE. METHODS By inducing cecal ligation and puncture (CLP), a mouse model of SAE was established, while the control group underwent a sham surgery in which the cecum was exposed without ligation and puncture. Piezo1 knockout mice were employed in this study. Morris water maze tests were conducted between Days 14 and 18 postop to assess both the motor activity and cognitive function. A proteomic analysis was conducted to assess the SAE-related pathways, whereas a Mendelian randomization analysis was conducted to identify the pathways associated with cognitive impairment. Dual-label immunofluorescence and flow cytometry were used to assess the secretion of inflammatory factors, microglial status, and oligodendrocyte development. Electron microscopy was used to evaluate axonal myelination. A western blot analysis was conducted to evaluate the influence of Piezo1 on oligodendrocyte ferroptosis. RESULTS The results of the bioinformatics analysis have revealed the significant involvement of CCL25 in the onset and progression of SAE-induced cognitive impairment. SAE leads to cognitive dysfunction by activating the microglial cells. The release of CCL25 by the activated microglia initiates the demyelination of oligodendrocytes in the hippocampus, resulting in ferroptosis and the disruption of hippocampal functional connectivity. Of note, the genetic knockout of the Piezo1 gene mitigates these changes. The treatment with siRNA targeting Piezo1 effectively reduces the secretion of inflammatory mediators CCL25 and IL-18 by inhibiting the p38 pathway, thus preventing the ferroptosis of oligodendrocytes through the modulation of the CCL25/GPR78 axis. CONCLUSION Piezo1 is involved in the activation of microglia and demyelinating oligodendrocytes in the animal models of SAE, resulting in cognitive impairment. Consequently, targeting Piezo1 suppression can be a promising approach for therapeutic interventions aimed at addressing cognitive dysfunction associated with SAE.
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Affiliation(s)
- Di Xie
- Department of Emergency, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Yangpu District, 200092 Shanghai, China
| | - Yanli Ma
- Department of Pediatrics, Shanghai Fourth People's Hospital, Tongji University School of Medicine, Hongkou District, 200434 Shanghai, China
| | - Chengjin Gao
- Department of Emergency, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Yangpu District, 200092 Shanghai, China.
| | - Shuming Pan
- Department of Emergency, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Yangpu District, 200092 Shanghai, China; Department of Emergency, Putuo District Central Hospital, Affiliated with Shanghai University of Traditional Chinese Medicine, Putuo District, 200062 Shanghai, China.
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3
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Soni D, Khan H, Chauhan S, Kaur A, Dhankhar S, Garg N, Singh TG. Exploring therapeutic potential: Targeting TRPM7 in neurodegenerative diseases. Int Immunopharmacol 2024; 142:113142. [PMID: 39298812 DOI: 10.1016/j.intimp.2024.113142] [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: 05/16/2024] [Revised: 08/06/2024] [Accepted: 09/08/2024] [Indexed: 09/22/2024]
Abstract
The ions Ca2+ and Mg2+, which are both present in the body, have been demonstrated to be crucial in the control of a variety of neuronal processes. Transient melastatin-7 (TRPM7) channel plays an important role in controlling Ca2+ and Mg2+ homeostasis, which is crucial for biological processes. The review will also examine how changes in TRPM7 function or expression can lead to neurodegeneration.Even though eight different TRPM channels have been found so far, the channel properties, activation mechanisms, and physiological responses exhibited by these channels can vary greatly from one another. Only TRPM6 and TRPM7 out of the eight TRPM channels were found to have a high permeability to both Ca2+ and Mg2+. In contrast to TRPM6 channels, which are not highly expressed in neuronal cells, TRPM7 channels are widely distributed throughout the nervous system, so they will be the sole focus of this article. It is possible that, in the future, for the treatment of neurodegenerative disorder new therapeutic drug targets will be developed as a direct result of research into the specific roles played by TRPM7 channels in several different neurodegenerative conditions as well as the factors that are responsible for TRPM7 channel regulation.
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Affiliation(s)
- Diksha Soni
- Chitkara College of Pharmacy, Chitkara University, Rajpura, Punjab 140401, India
| | - Heena Khan
- Chitkara College of Pharmacy, Chitkara University, Rajpura, Punjab 140401, India
| | - Samrat Chauhan
- Chitkara College of Pharmacy, Chitkara University, Rajpura, Punjab 140401, India
| | - Amarjot Kaur
- Chitkara College of Pharmacy, Chitkara University, Rajpura, Punjab 140401, India
| | - Sanchit Dhankhar
- Chitkara College of Pharmacy, Chitkara University, Rajpura, Punjab 140401, India
| | - Nitika Garg
- Chitkara College of Pharmacy, Chitkara University, Rajpura, Punjab 140401, India
| | - Thakur Gurjeet Singh
- Chitkara College of Pharmacy, Chitkara University, Rajpura, Punjab 140401, India.
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4
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Li M, Yu Q, Anayyat U, Yang H, Wei Y, Wang X. Rotating magnetic field improved cognitive and memory impairments in a sporadic ad model of mice by regulating microglial polarization. GeroScience 2024; 46:6229-6256. [PMID: 38904930 PMCID: PMC11493917 DOI: 10.1007/s11357-024-01223-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: 10/10/2023] [Accepted: 05/24/2024] [Indexed: 06/22/2024] Open
Abstract
Neuroinflammation, triggered by aberrantly activated microglia, is widely recognized as a key contributor to the initiation and progression of Alzheimer's disease (AD). Microglial activation in the central nervous system (CNS) can be classified into two distinct phenotypes: the pro-inflammatory M1 phenotype and the anti-inflammatory M2 phenotype. In this study, we investigated the effects of a non-invasive rotating magnetic field (RMF) (0.2T, 4Hz) on cognitive and memory impairments in a sporadic AD model of female Kunming mice induced by AlCl3 and D-gal. Our findings revealed significant improvements in cognitive and memory impairments following RMF treatment. Furthermore, RMF treatment led to reduced amyloid-beta (Aβ) deposition, mitigated damage to hippocampal morphology, prevented synaptic and neuronal loss, and alleviated cell apoptosis in the hippocampus and cortex of AD mice. Notably, RMF treatment ameliorated neuroinflammation, facilitated the transition of microglial polarization from M1 to M2, and inhibited the NF-кB/MAPK pathway. Additionally, RMF treatment resulted in reduced aluminum deposition in the brains of AD mice. In cellular experiments, RMF promoted the M1-M2 polarization transition and enhanced amyloid phagocytosis in cultured BV2 cells while inhibiting the TLR4/NF-кB/MAPK pathway. Collectively, these results demonstrate that RMF improves memory and cognitive impairments in a sporadic AD model, potentially by promoting the M1 to M2 transition of microglial polarization through inhibition of the NF-кB/MAPK signaling pathway. These findings suggest the promising therapeutic applications of RMF in the clinical treatment of AD.
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Affiliation(s)
- Mengqing Li
- Shenzhen University School of Basic Medical Sciences, Shenzhen, 518055, Guangdong, China
| | - Qinyao Yu
- Shenzhen University College of Medicine, Shenzhen, 518055, Guangdong, China
| | - Umer Anayyat
- Shenzhen University School of Basic Medical Sciences, Shenzhen, 518055, Guangdong, China
| | - Hua Yang
- Shenzhen University School of Basic Medical Sciences, Shenzhen, 518055, Guangdong, China
| | - Yunpeng Wei
- Shenzhen University School of Basic Medical Sciences, Shenzhen, 518055, Guangdong, China.
| | - Xiaomei Wang
- Shenzhen University School of Basic Medical Sciences, Shenzhen, 518055, Guangdong, China.
- Shenzhen University International Cancer Center, Shenzhen, 518055, Guangdong, China.
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5
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Bian ZY, Li PX, Feng XY, Zhou YR, Cheng FY, Dong WX, Xiang P, Tang JJ. Design, synthesis, and biological evaluation of imidazolylacetophenone oxime derivatives as novel brain-penetrant agents for Alzheimer's disease treatment. Eur J Med Chem 2024; 278:116794. [PMID: 39226707 DOI: 10.1016/j.ejmech.2024.116794] [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: 06/27/2024] [Revised: 08/13/2024] [Accepted: 08/22/2024] [Indexed: 09/05/2024]
Abstract
Alzheimer's disease (AD, also known as dementia) has become a serious global health problem along with population aging, and neuroinflammation is the underlying cause of cognitive impairment in the brain. Nowadays, the development of multitarget anti-AD drugs is considered to be one effective approach. Imidazolylacetophenone oxime ethers or esters (IOEs) were multifunctional agents with neuroinflammation inhibition, metal chelation, antioxidant and neuroprotection properties against Alzheimer's disease. In this study, IOEs derivatives 1-8 were obtained by structural modifications of the oxime and imidazole groups, and the SARs showed that (Z)-oxime ether (derivative 2) had stronger anti-neuroinflammatory and neuroprotective ability than (E)-congener. Then, IOEs derivatives 9-30 were synthesized based on target-directed ligands and activity-based groups hybridization strategy. In vitro anti-AD activity screening revealed that some derivatives exhibited potentially multifunctional effects, among which derivative 28 exhibited the strongest inhibitory activity on NO production with EC50 value of 0.49 μM, and had neuroprotective effects on 6-OHDA-induced cell damage and RSL3-induced ferroptosis. The anti-neuroinflammatory mechanism showed that 28 could inhibit the release of pro-inflammatory factors PGE2 and TNF-α, down-regulate the expression of iNOS and COX-2 proteins, and promote the polarization of BV-2 cells from pro-inflammatory M1 phenotype to anti-inflammatory M2 phenotype. In addition, 28 can dose-dependently inhibit acetylcholinesterase (AChE) and Aβ42 aggregation. Moreover, the selected nuclide [18F]-labeled 28 was synthesized to explore its biodistribution by micro-PET/CT, of which 28 can penetrate the blood-brain barrier (BBB). These results shed light on the potential of 28 as a new multifunctional candidate for AD treatment.
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Affiliation(s)
- Zhao-Yuan Bian
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, No.3 Taicheng Road, Yangling, Shaanxi, 712100, China
| | - Peng-Xiao Li
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, No.3 Taicheng Road, Yangling, Shaanxi, 712100, China
| | - Xu-Yao Feng
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, No.3 Taicheng Road, Yangling, Shaanxi, 712100, China
| | - Yi-Ran Zhou
- Sendelta International Academy Shenzhen H3C1, Shenzhen 518000, China
| | - Fei-Yue Cheng
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, No.3 Taicheng Road, Yangling, Shaanxi, 712100, China
| | - Wei-Xuan Dong
- The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, 710000, China
| | - Ping Xiang
- College of Plant Protection, Northwest A&F University, No.3 Taicheng Road, Yangling, Shaanxi, 712100, China.
| | - Jiang-Jiang Tang
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, No.3 Taicheng Road, Yangling, Shaanxi, 712100, China; Northwest A&F University Shenzhen Research Institute, Shenzhen Virtual University Park Building, High-TechIndustrial Park, Shenzhen, Guangdong, 518000, China.
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6
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Shao J, Deng Q, Feng S, Wu C, Liu X, Yang L. Role of astrocytes in Alzheimer's disease pathogenesis and the impact of exercise-induced remodeling. Biochem Biophys Res Commun 2024; 732:150418. [PMID: 39032410 DOI: 10.1016/j.bbrc.2024.150418] [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: 04/26/2024] [Revised: 07/11/2024] [Accepted: 07/16/2024] [Indexed: 07/23/2024]
Abstract
Alzheimer's disease (AD) is a prevalent and debilitating brain disorder that worsens progressively with age, characterized by cognitive decline and memory impairment. The accumulation of amyloid-beta (Aβ) leading to amyloid plaques and hyperphosphorylation of Tau, resulting in intracellular neurofibrillary tangles (NFTs), are primary pathological features of AD. Despite significant research investment and effort, therapies targeting Aβ and NFTs have proven limited in efficacy for treating or slowing AD progression. Consequently, there is a growing interest in non-invasive therapeutic strategies for AD prevention. Exercise, a low-cost and non-invasive intervention, has demonstrated promising neuroprotective potential in AD prevention. Astrocytes, among the most abundant glial cells in the brain, play essential roles in various physiological processes and are implicated in AD initiation and progression. Exercise delays pathological progression and mitigates cognitive dysfunction in AD by modulating astrocyte morphological and phenotypic changes and fostering crosstalk with other glial cells. This review aims to consolidate the current understanding of how exercise influences astrocyte dynamics in AD, with a focus on elucidating the molecular and cellular mechanisms underlying astrocyte remodeling. The review begins with an overview of the neuropathological changes observed in AD, followed by an examination of astrocyte dysfunction as a feature of the disease. Lastly, the review explores the potential therapeutic implications of exercise-induced astrocyte remodeling in the context of AD.
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Affiliation(s)
- Jie Shao
- Laboratory of Exercise and Neurobiology, School of Physical Education and Sports Science, South China Normal University, Guangzhou, 510006, China
| | - Qianting Deng
- Laboratory of Exercise and Neurobiology, School of Physical Education and Sports Science, South China Normal University, Guangzhou, 510006, China
| | - Shu Feng
- Laboratory of Exercise and Neurobiology, School of Physical Education and Sports Science, South China Normal University, Guangzhou, 510006, China
| | - Chongyun Wu
- Laboratory of Exercise and Neurobiology, School of Physical Education and Sports Science, South China Normal University, Guangzhou, 510006, China.
| | - Xiaocao Liu
- Laboratory of Exercise and Neurobiology, School of Physical Education and Sports Science, South China Normal University, Guangzhou, 510006, China.
| | - Luodan Yang
- Laboratory of Exercise and Neurobiology, School of Physical Education and Sports Science, South China Normal University, Guangzhou, 510006, China.
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7
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Zhang X, Qiao Y, Wang M, Liang X, Wei L, Zhang M, Bi H, Gao T. Study of the immune disorder and metabolic dysregulation underlying mental abnormalities caused by exposure to narrow confined spaces. Brain Res 2024; 1842:149101. [PMID: 38945470 DOI: 10.1016/j.brainres.2024.149101] [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: 02/08/2024] [Revised: 06/16/2024] [Accepted: 06/26/2024] [Indexed: 07/02/2024]
Abstract
Prolonged confinement in cramped spaces can lead to derangements in brain function/structure, yet the underlying mechanisms remain unclear. To investigate, we subjected mice to restraint stress to simulate long-term narrow and enclosed space confinement, assessing their mental state through behavioral tests. Stressed mice showed reduced center travel and dwell time in the Open Field Test and increased immobility in the Tail Suspension Test. We measured lower hippocampal brain-derived neurotrophic factor levels and cortical monoamine neurotransmitters (5-HT and NE) in the stressed group. Further examination of the body's immune levels and serum metabolism revealed immune dysregulation and metabolic imbalance in the stressed group. The results of the metabolic network regulation analysis indicate that the targets affected by these differential metabolites are involved in several metabolic pathways that the metabolites themselves participate in, such as the "long-term depression" and "purine metabolism" pathways. Additionally, these targets are also associated with numerous immune-related pathways, such as the TNF, NF-κB, and IL-17 signaling pathways, and these findings were validated using GEO dataset analysis. Molecular docking results suggest that differential metabolites may regulate specific immune factors such as TNF-α, IL-1β, and IL-6, and these results were confirmed in experiments. Our research findings suggest that long-term exposure to confined and narrow spaces can lead to the development of psychopathologies, possibly mediated by immune system dysregulation and metabolic disruption.
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Affiliation(s)
- Xingfang Zhang
- Department of Pharmacy, Faculty of Medicine, Qinghai University, Xining 810001, China; School of Psychology, Chengdu Medical College, Chengdu 610500, China; Qinghai Provincial Key Laboratory of Tibetan Medicine Pharmacology and Safety Evaluation, Northwest Institute of Plateau Biology, Chinese Academy of Science, Xining 810008, China
| | - Yajun Qiao
- Department of Pharmacy, Faculty of Medicine, Qinghai University, Xining 810001, China; School of Psychology, Chengdu Medical College, Chengdu 610500, China; Qinghai Provincial Key Laboratory of Tibetan Medicine Pharmacology and Safety Evaluation, Northwest Institute of Plateau Biology, Chinese Academy of Science, Xining 810008, China
| | - Mengyuan Wang
- Department of Pharmacy, Faculty of Medicine, Qinghai University, Xining 810001, China
| | - Xinxin Liang
- School of Psychology, Chengdu Medical College, Chengdu 610500, China; Qinghai Provincial Key Laboratory of Tibetan Medicine Pharmacology and Safety Evaluation, Northwest Institute of Plateau Biology, Chinese Academy of Science, Xining 810008, China
| | - Lixin Wei
- Qinghai Provincial Key Laboratory of Tibetan Medicine Pharmacology and Safety Evaluation, Northwest Institute of Plateau Biology, Chinese Academy of Science, Xining 810008, China; CAS Key Laboratory of Tibetan Medicine Research, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining 810001, China
| | - Ming Zhang
- Qinghai Provincial Key Laboratory of Tibetan Medicine Pharmacology and Safety Evaluation, Northwest Institute of Plateau Biology, Chinese Academy of Science, Xining 810008, China; CAS Key Laboratory of Tibetan Medicine Research, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining 810001, China
| | - Hongtao Bi
- Department of Pharmacy, Faculty of Medicine, Qinghai University, Xining 810001, China; Qinghai Provincial Key Laboratory of Tibetan Medicine Pharmacology and Safety Evaluation, Northwest Institute of Plateau Biology, Chinese Academy of Science, Xining 810008, China.
| | - Tingting Gao
- School of Psychology, Chengdu Medical College, Chengdu 610500, China; Department of Psychiatry, the People's Hospital of Jiangmen, Southern Medical University, Jiangmen 529000, China.
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8
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Zhang H, Zhang C, Wang Q, Fu W, Xing W, Jin P, Wu H, Bu Y, Xu D, Xu D. PFOS sub-chronic exposure selectively activates Aβ clearance pathway to improve the cognitive ability of AD mice. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024:125031. [PMID: 39454812 DOI: 10.1016/j.envpol.2024.125031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2024] [Revised: 09/10/2024] [Accepted: 09/24/2024] [Indexed: 10/28/2024]
Abstract
Perfluorooctane sulfonate (PFOS), an emerging persistent organic pollutant, has been controversial in its impact on cognitive functions. Our previous research has confirmed that the sub-chronic PFOS exposure leads to neuronal apoptosis in the cerebral cortex, impairing cognitive functions in normal mice. However, our current study presents a surprising finding: sub-chronic exposure to PFOS effectively reduces cognitive impairments in Alzheimer's disease (AD) mice and significantly retards the disease's progression. Our results indicate that PFOS exposure upregulates the expression level of insulin-degrading enzyme (IDE) in the prefrontal cortex (PFC) of AD mice, thereby selectively enhancing the amyloid-beta (Aβ) clearance pathway without affecting the Aβ production. Moreover, PFOS exposure inhibits microglial proliferation and reduces inflammatory cytokines levels in the PFC of AD mice, providing further supporting for the pivotal role of IDE in attenuating AD progression under PFOS exposure. Collectively, our study is the first to demonstrate that sub-chronic PFOS exposure can alleviates cognitive impairments in AD pathology, with the IDE-mediated Aβ clearance pathway potentially playing a critical role.
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Affiliation(s)
- Haijing Zhang
- China CDC Key Laboratory of Environment and Population Health, National Institute of Environmental Health, Chinese Center for Disease Control and Prevention, Beijing, 100021, China
| | - Chao Zhang
- Beijing Institute of Basic Medical Sciences, Beijing, 100039, China
| | - Qin Wang
- China CDC Key Laboratory of Environment and Population Health, National Institute of Environmental Health, Chinese Center for Disease Control and Prevention, Beijing, 100021, China
| | - Wenliang Fu
- Beijing Institute of Basic Medical Sciences, Beijing, 100039, China
| | - Weiwei Xing
- Beijing Institute of Basic Medical Sciences, Beijing, 100039, China
| | - Peng Jin
- Beijing Institute of Basic Medical Sciences, Beijing, 100039, China
| | - Haowei Wu
- Beijing Institute of Basic Medical Sciences, Beijing, 100039, China
| | - Yuanjing Bu
- Beijing Institute of Basic Medical Sciences, Beijing, 100039, China
| | - Dongqun Xu
- China CDC Key Laboratory of Environment and Population Health, National Institute of Environmental Health, Chinese Center for Disease Control and Prevention, Beijing, 100021, China.
| | - Donggang Xu
- Beijing Institute of Basic Medical Sciences, Beijing, 100039, China.
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Yin Q, Chen G, Hao J, Lin B, Meng Q, Xu L, Zhou D, Hou Y, Li N. Flavaglines with anti-neuroinflammatory activity from Aglaia edulis (Roxb.) Wall. and structure revision of related flavaglines. PHYTOCHEMISTRY 2024; 229:114298. [PMID: 39419315 DOI: 10.1016/j.phytochem.2024.114298] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2024] [Revised: 10/06/2024] [Accepted: 10/14/2024] [Indexed: 10/19/2024]
Abstract
Eight cyclopenta[b]benzofurans (1, 2, 4, and 5-9) and eight cyclopenta[bc]benzopyrans (3, 10-16), including a revised (4) and three undescribed compounds (1-3), were isolated from the twigs and leaves of Aglaia edulis (Roxb.) Wall. Their structures were determined by a combination of spectral analysis in conjunction with NMR and ECD calculations. Moreover, based on the findings from 13C NMR calculations and DP4+ statistical analysis, an empirical guideline was established to differentiate the structures of cyclopenta[bc]benzopyrans and cyclopenta[b]benzofurans by aggregating chemical shift data from known compounds. This guideline facilitated the proposal of structural revisions for three previously reported analogs (R-1, R-2, R-3). Biological assay indicated that cyclopenta[b]benzofuran flavalines (2, and 4-8) could significantly inhibit NO production in LPS-induced BV-2 cells with IC50 values from 0.002 to 0.05 μM.
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Affiliation(s)
- Qianqian Yin
- School of Traditional Chinese Materia Medica, Key Laboratory of Innovative Traditional Chinese Medicine for Major Chronic Diseases of Liaoning province, Key Laboratory for TCM Material Basis Study and Innovative Drug Development of Shenyang City, Shenyang Pharmaceutical University, Shenyang, 110016, PR China
| | - Gang Chen
- School of Traditional Chinese Materia Medica, Key Laboratory of Innovative Traditional Chinese Medicine for Major Chronic Diseases of Liaoning province, Key Laboratory for TCM Material Basis Study and Innovative Drug Development of Shenyang City, Shenyang Pharmaceutical University, Shenyang, 110016, PR China
| | - Jinle Hao
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, 110016, PR China
| | - Bin Lin
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, 110016, PR China
| | - Qingqi Meng
- Key Laboratory of Bioresource Research and Development of Liaoning Province, College of Life and Health Sciences, National Frontiers Science Center for Industrial Intelligence and Systems Optimization, Key Laboratory of Data Analytics and Optimization for Smart Industry, Ministry of Education, Northeastern University, Shenyang, 110167, PR China
| | - Libin Xu
- Key Laboratory of Bioresource Research and Development of Liaoning Province, College of Life and Health Sciences, National Frontiers Science Center for Industrial Intelligence and Systems Optimization, Key Laboratory of Data Analytics and Optimization for Smart Industry, Ministry of Education, Northeastern University, Shenyang, 110167, PR China
| | - Di Zhou
- School of Traditional Chinese Materia Medica, Key Laboratory of Innovative Traditional Chinese Medicine for Major Chronic Diseases of Liaoning province, Key Laboratory for TCM Material Basis Study and Innovative Drug Development of Shenyang City, Shenyang Pharmaceutical University, Shenyang, 110016, PR China; State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Guangxi Normal University, Guilin, 541000, PR China
| | - Yue Hou
- Key Laboratory of Bioresource Research and Development of Liaoning Province, College of Life and Health Sciences, National Frontiers Science Center for Industrial Intelligence and Systems Optimization, Key Laboratory of Data Analytics and Optimization for Smart Industry, Ministry of Education, Northeastern University, Shenyang, 110167, PR China.
| | - Ning Li
- School of Traditional Chinese Materia Medica, Key Laboratory of Innovative Traditional Chinese Medicine for Major Chronic Diseases of Liaoning province, Key Laboratory for TCM Material Basis Study and Innovative Drug Development of Shenyang City, Shenyang Pharmaceutical University, Shenyang, 110016, PR China.
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10
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Wang R, Ren L, Wang Y, Hu N, Tie F, Dong Q, Wang H. Multi-Protective Effects of Petunidin-3-O-( trans-p-coumaroylrutinoside)-5-O-glucoside on D-Gal-Induced Aging Mice. Int J Mol Sci 2024; 25:11014. [PMID: 39456797 PMCID: PMC11506951 DOI: 10.3390/ijms252011014] [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: 08/14/2024] [Revised: 09/24/2024] [Accepted: 09/30/2024] [Indexed: 10/28/2024] Open
Abstract
Petunidin-3-O-(trans-p-coumaroylrutinoside)-5-O-glucoside (PtCG), the primary anthocyanin ingredient in Lycium ruthenicum Murr., possesses a range of biological activities, including antioxidative properties and melanin inhibition. This study aimed to investigate the protective effect of PtCG on D-galactose (D-gal)-induced aging in female mice and elucidate the underlying molecular pathways. Behavioral experiments, including the MWW and Y-maze tests, revealed that PtCG significantly ameliorated cognitive decline and enhanced learning and memory abilities in aging mice. Regarding biochemical indicators, PtCG considerably improved superoxide dismutase (SOD) and glutathione (GSH) activity while reducing malondialdehyde (MDA) and acetylcholinesterase (AChE) levels in the hippocampus and serum. Furthermore, PtCG ingestion alleviated liver injury by decreasing alanine transaminase (ALT), aspartate transaminase (AST), and alkaline phosphatase (AKP) levels, and attenuated renal damage by reducing blood urea nitrogen (BUN) and uric acid (UA) levels. Transmission electron microscopy (TEM) results demonstrated that PtCG restored the function and quantity of synapses in the hippocampus. Hematoxylin and eosin (H&E), Masson's trichrome, and Nissl staining revealed that PtCG significantly improved the relevant pathological characteristics of liver and hippocampal tissues in aging mice. The molecular mechanism investigation showed that PtCG downregulated the protein expression of microglial marker ionized calcium-binding adapter molecule 1 (Iba1), astrocytic marker glial fibrillary acidic protein (GFAP), β-secretase 1 (BACE-1), and amyloid-beta1-42 (Aβ1-42) in the hippocampus of aging mice. The protein expression of inflammatory pathway components, including nuclear factor-kappa B (NF-κB), cyclooxygenase-2 (COX2), inducible nitric oxide synthase (iNOS), and interleukin-1 beta (IL-1β), was also suppressed. These findings suggest that PtCG may possess anti-aging properties, with its mechanism of action potentially linked to the attenuation of neuroinflammation, oxidative stress, and liver and kidney damage. PtCG may have future applications as a functional food for the treatment of aging-related disorders.
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Affiliation(s)
- Ruinan Wang
- Qinghai Provincial Key Laboratory of Tibetan Medicine Research and CAS Key Laboratory of Tibetan Medicine Research, Northwest Institute of Plateau Biology, Xining 810008, China; (R.W.); (L.R.); (Y.W.); (N.H.); (F.T.); (Q.D.)
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Lichengcheng Ren
- Qinghai Provincial Key Laboratory of Tibetan Medicine Research and CAS Key Laboratory of Tibetan Medicine Research, Northwest Institute of Plateau Biology, Xining 810008, China; (R.W.); (L.R.); (Y.W.); (N.H.); (F.T.); (Q.D.)
| | - Yue Wang
- Qinghai Provincial Key Laboratory of Tibetan Medicine Research and CAS Key Laboratory of Tibetan Medicine Research, Northwest Institute of Plateau Biology, Xining 810008, China; (R.W.); (L.R.); (Y.W.); (N.H.); (F.T.); (Q.D.)
| | - Na Hu
- Qinghai Provincial Key Laboratory of Tibetan Medicine Research and CAS Key Laboratory of Tibetan Medicine Research, Northwest Institute of Plateau Biology, Xining 810008, China; (R.W.); (L.R.); (Y.W.); (N.H.); (F.T.); (Q.D.)
| | - Fangfang Tie
- Qinghai Provincial Key Laboratory of Tibetan Medicine Research and CAS Key Laboratory of Tibetan Medicine Research, Northwest Institute of Plateau Biology, Xining 810008, China; (R.W.); (L.R.); (Y.W.); (N.H.); (F.T.); (Q.D.)
| | - Qi Dong
- Qinghai Provincial Key Laboratory of Tibetan Medicine Research and CAS Key Laboratory of Tibetan Medicine Research, Northwest Institute of Plateau Biology, Xining 810008, China; (R.W.); (L.R.); (Y.W.); (N.H.); (F.T.); (Q.D.)
| | - Honglun Wang
- Qinghai Provincial Key Laboratory of Tibetan Medicine Research and CAS Key Laboratory of Tibetan Medicine Research, Northwest Institute of Plateau Biology, Xining 810008, China; (R.W.); (L.R.); (Y.W.); (N.H.); (F.T.); (Q.D.)
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11
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Rai V, Deepu V, Agrawal DK. Targeting RAGE-signaling pathways in the repair of rotator-cuff injury. Mol Cell Biochem 2024:10.1007/s11010-024-05132-8. [PMID: 39395136 DOI: 10.1007/s11010-024-05132-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2024] [Accepted: 10/01/2024] [Indexed: 10/14/2024]
Abstract
Rotator cuff injury (RCI) is a common musculoskeletal problem that can have a significant impact on the quality of life and functional abilities of those affected. Novel therapies, including proteomics-based, stem cells, platelet-rich plasma, and exosomes, are being developed to promote rotator-cuff healing. The receptor for advanced glycation end-products (RAGE) is a multifunctional receptor that is expressed on several cell types and is implicated in several physiologic and pathological processes, such as tissue repair, inflammation, and degeneration. Because of its capacity to bind with a variety of ligands and initiate signaling pathways that lead to inflammatory responses in RCI, RAGE plays a crucial role in inflammation. In this critical review article, we discussed the role of RAGE-mediated persistent inflammation in RCI followed by novel factors including PKCs, TIRAP, DIAPH1, and factors related to muscle injury with their therapeutic potential in RCI. These factors involve various aspects of muscle injury and signaling and the possibility of targeting these factors to improve the clinical outcomes in RCI still needs further investigation.
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Affiliation(s)
- Vikrant Rai
- Department of Translational Research, Western University of Health Sciences, 309 E. Second Street, Pomona, CA, 91766-1854, USA
| | - Vinitha Deepu
- Department of Translational Research, Western University of Health Sciences, 309 E. Second Street, Pomona, CA, 91766-1854, USA
| | - Devendra K Agrawal
- Department of Translational Research, Western University of Health Sciences, 309 E. Second Street, Pomona, CA, 91766-1854, USA.
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12
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Zhang Q, Liu X, Ma Q, Zhang J. Melanin concentrating hormone regulates the JNK/ERK signaling pathway to alleviate influenza A virus infection-induced neuroinflammation. J Neuroinflammation 2024; 21:259. [PMID: 39390522 PMCID: PMC11468281 DOI: 10.1186/s12974-024-03251-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: 02/17/2024] [Accepted: 09/30/2024] [Indexed: 10/12/2024] Open
Abstract
Melanin concentrating hormone (MCH) controls many brain functions, such as sleep/wake cycle and memory, and modulates the inflammation response. Previous studies have shown that influenza A virus (IAV) infection-induced neuroinflammation leads to central nervous damage. This study investigated the potential effects of MCH against neuroinflammation induced by IAV infection and its mechanism. MCH (1 and 2 mg/ml) was administrated for 5 consecutive days before IAV infection. Pentobarbital-induced sleep tests, an open-field test, and a Morris water maze were performed to measure sleep quality, spatial learning and memory ability. Neuronal loss and microglial activation were observed with Nissl staining and immunofluorescence assay. The levels of inflammatory cytokines and the expression of the JNK/ERK signaling pathway were examined by ELISA and western blot. IAV infection led to poor sleep quality, impaired the ability of spatial learning and memory, caused neuronal loss and microglial activation in mice's hippocampus and cortex. Meanwhile the level of inflammatory cytokines increased, and the JNK/ERK signaling pathway was activated after IAV infection. MCH administration significantly alleviated IAV-induced neuroinflammation, cognitive impairment, and sleep disorder, decreased the levels of inflammatory cytokines, and inhibited neuronal loss and microglial activation in the hippocampus and cortex by regulating the JNK/ERK signaling pathway. Therefore, MCH alleviated the neuroinflammation, spatial learning and memory impairment, and sleep disorder in IAV-infected mice by regulating the JNK/ERK signaling pathway.
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Affiliation(s)
- Qianlin Zhang
- Neurology Department, Henan Provincial People's Hospital, Zhengzhou University People's Hospital, Henan University People's Hospital, No.7 Weiwu Road, Zhengzhou, Henan Province, 450003, China
| | - Xiaoyang Liu
- Neurology Department, Henan Provincial People's Hospital, Zhengzhou University People's Hospital, Henan University People's Hospital, No.7 Weiwu Road, Zhengzhou, Henan Province, 450003, China
| | - Qiankun Ma
- Neurology Department, Henan Provincial People's Hospital, Zhengzhou University People's Hospital, Henan University People's Hospital, No.7 Weiwu Road, Zhengzhou, Henan Province, 450003, China
| | - Jiewen Zhang
- Neurology Department, Henan Provincial People's Hospital, Zhengzhou University People's Hospital, Henan University People's Hospital, No.7 Weiwu Road, Zhengzhou, Henan Province, 450003, China.
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13
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Zhao J, Qiu YK, Xie YX, Li XY, Li YB, Wu B, Wang YW, Tian XY, Lv YL, Zhang LH, Li WL, Yang HF. Imbalance of mitochondrial quality control regulated by STING and PINK1 affects cyfluthrin-induced neuroinflammation. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 946:174313. [PMID: 38964406 DOI: 10.1016/j.scitotenv.2024.174313] [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: 04/03/2024] [Revised: 06/11/2024] [Accepted: 06/24/2024] [Indexed: 07/06/2024]
Abstract
Nervous system diseases are a global health problem, and with the increase in the elderly population around the world, their incidence will also increase. Harmful substances in the environment are closely related to the occurrence of nervous system diseases. China is a large agricultural country, and thus the insecticide cyfluthrin has been widely used. Cyfluthrin is neurotoxic, but the mechanism of this injury is not clear. Inflammation is an important mechanism for the occurrence of nervous system diseases. Mitochondria are the main regulators of the inflammatory response, and various cellular responses, including autophagy, directly affect the regulation of inflammatory processes. Mitochondrial damage is related to mitochondrial quality control (MQC) and PTEN-induced kinase 1 (PINK1). As an anti-inflammatory factor, stimulator of interferon genes (STING) participates in the regulation of inflammation. However, the relationship between STING and mitochondria in the process of cyfluthrin-induced nerve injury is unclear. This study established in vivo and in vitro models of cyfluthrin exposure to explore the role of MQC and to clarify the mechanism of action of STING and PINK1. Our results showed that cyfluthrin can increase the reactive oxygen species (ROS) level, resulting in mitochondrial damage and inflammation. In this process, an imbalance in MQC leads to the aggravation of mitochondrial damage, and high STING expression drives the occurrence of inflammation. We established a differential expression model of STING and PINK1 to further determine the underlying mechanism and found that the interaction between STING and PINK1 regulates MQC to affect the levels of mitochondrial damage and inflammation. When STING and PINK1 expression are downregulated, mitochondrial damage and STING-induced inflammation are significantly alleviated. In summary, a synergistic effect between STING and PINK1 on cyfluthrin-induced neuroinflammation may exist, which leads to an imbalance in MQC by inhibiting mitochondrial biogenesis and division/fusion, and PINK1 can reduce STING-driven inflammation.
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Affiliation(s)
- Ji Zhao
- College of Public Health, Ningxia Medical University, Yinchuan 750004, PR China; Key Laboratory of Environmental Factors and Chronic Disease Control, Yinchuan 750004, PR China; Department of Toxicology, Shaanxi Provincial Key Lab of Free Radical Biology and Medicine, Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, School of Public Health, Fourth Military Medical University, Xi'an 710032, PR China
| | - Yi-Kai Qiu
- Key Laboratory of Fertility Preservation and Maintenance of Ministry of Eduction, Yinchuan 750004, PR China
| | - Yong-Xing Xie
- College of Public Health, Ningxia Medical University, Yinchuan 750004, PR China; Key Laboratory of Environmental Factors and Chronic Disease Control, Yinchuan 750004, PR China
| | - Xiao-Yu Li
- College of Public Health, Ningxia Medical University, Yinchuan 750004, PR China; Key Laboratory of Environmental Factors and Chronic Disease Control, Yinchuan 750004, PR China
| | - Yu-Bin Li
- College of Public Health, Ningxia Medical University, Yinchuan 750004, PR China; Key Laboratory of Environmental Factors and Chronic Disease Control, Yinchuan 750004, PR China
| | - Bing Wu
- College of Public Health, Ningxia Medical University, Yinchuan 750004, PR China; Key Laboratory of Environmental Factors and Chronic Disease Control, Yinchuan 750004, PR China
| | - Yu-Wen Wang
- College of Public Health, Ningxia Medical University, Yinchuan 750004, PR China; Key Laboratory of Environmental Factors and Chronic Disease Control, Yinchuan 750004, PR China
| | - Xue-Yan Tian
- College of Public Health, Ningxia Medical University, Yinchuan 750004, PR China; Key Laboratory of Environmental Factors and Chronic Disease Control, Yinchuan 750004, PR China
| | - Yan-Ling Lv
- College of Public Health, Ningxia Medical University, Yinchuan 750004, PR China; Key Laboratory of Environmental Factors and Chronic Disease Control, Yinchuan 750004, PR China
| | - Ling-He Zhang
- College of Public Health, Ningxia Medical University, Yinchuan 750004, PR China; Key Laboratory of Environmental Factors and Chronic Disease Control, Yinchuan 750004, PR China
| | - Wen-Li Li
- Department of Toxicology, Shaanxi Provincial Key Lab of Free Radical Biology and Medicine, Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, School of Public Health, Fourth Military Medical University, Xi'an 710032, PR China.
| | - Hui-Fang Yang
- College of Public Health, Ningxia Medical University, Yinchuan 750004, PR China; Key Laboratory of Environmental Factors and Chronic Disease Control, Yinchuan 750004, PR China.
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14
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Wei RM, Zhang MY, Fang SK, Liu GX, Hu F, Li XY, Zhang KX, Zhang JY, Liu XC, Zhang YM, Chen GH. Melatonin attenuates intermittent hypoxia-induced cognitive impairment in aged mice: The role of inflammation and synaptic plasticity. Psychoneuroendocrinology 2024; 171:107210. [PMID: 39378690 DOI: 10.1016/j.psyneuen.2024.107210] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/29/2023] [Revised: 09/08/2024] [Accepted: 10/02/2024] [Indexed: 10/10/2024]
Abstract
Intermittent hypoxia (IH), a major pathophysiologic alteration in obstructive sleep apnea syndrome (OSAS), is an important contributor to cognitive impairment. Increasing research suggests that melatonin has anti-inflammatory properties and improves functions related to synaptic plasticity. However, it is unclear whether melatonin has a protective effect against OSAS-induced cognitive dysfunction in aged individuals and the involved mechanisms are also unclear. Therefore, in the study, the effects of exposure to IH alone and IH in combination with daily melatonin treatment were investigated in C57BL/6 J mice aged 18 months. Assessment of the cognitive ability of mice in a Morris water maze showed that melatonin attenuated IH-induced impairment of learning and memory in aged mice. Enzyme-linked immunosorbent assay, polymerase chain reaction, and western blotting molecular techniques showed that melatonin treatment reduced the levels of the proinflammatory cytokines, interleukin-1β, interleukin-6, and tumor necrosis factor-α, decreased the levels of NOD-like receptor thermal protein domain associated protein 3 and nuclear factor kappa-B, lowered the levels of ionized calcium-binding adapter molecule 1 and glial fibrillary acidic protein, and increased the levels of the synaptic proteins, activity-regulated cytoskeleton-associated protein, growth-associated protein-43, postsynaptic density protein 95, and synaptophysin in IH-exposed mice. Moreover, electrophysiological results showed that melatonin ameliorated the decline in long-term potentiation induced by IH. The results suggest that melatonin can ameliorate IH-induced cognitive deficits by inhibiting neuroinflammation and improving synaptic plasticity in aged mice.
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Affiliation(s)
- Ru-Meng Wei
- Department of Neurology (sleep disorders), the Affiliated Chaohu Hospital of Anhui Medical University, Hefei, Anhui 238001, PR China.
| | - Meng-Ying Zhang
- Department of Anesthesiology, the Affiliated Chaohu Hospital of Anhui Medical University, Hefei, Anhui 238001, PR China.
| | - Shi-Kun Fang
- Department of Neurology (sleep disorders), the Affiliated Chaohu Hospital of Anhui Medical University, Hefei, Anhui 238001, PR China.
| | - Gao-Xia Liu
- Department of Neurology (sleep disorders), the Affiliated Chaohu Hospital of Anhui Medical University, Hefei, Anhui 238001, PR China.
| | - Fei Hu
- Department of Neurology (sleep disorders), the Affiliated Chaohu Hospital of Anhui Medical University, Hefei, Anhui 238001, PR China.
| | - Xue-Yan Li
- Department of Neurology (sleep disorders), the Affiliated Chaohu Hospital of Anhui Medical University, Hefei, Anhui 238001, PR China.
| | - Kai-Xuan Zhang
- Department of Neurology (sleep disorders), the Affiliated Chaohu Hospital of Anhui Medical University, Hefei, Anhui 238001, PR China.
| | - Jing-Ya Zhang
- Department of Neurology (sleep disorders), the Affiliated Chaohu Hospital of Anhui Medical University, Hefei, Anhui 238001, PR China.
| | - Xue-Chun Liu
- Department of Neurology, the Second People's Hospital of Hefei, Hefei Hospital Affiliated to Anhui Medical University, Hefei, Anhui, China.
| | - Yue-Ming Zhang
- Department of Neurology (sleep disorders), the Affiliated Chaohu Hospital of Anhui Medical University, Hefei, Anhui 238001, PR China.
| | - Gui-Hai Chen
- Department of Neurology (sleep disorders), the Affiliated Chaohu Hospital of Anhui Medical University, Hefei, Anhui 238001, PR China.
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15
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Zhao J, Guo P, Fang J, Wang C, Yan C, Bai Y, Wang Z, Du G, Liu A. Neuroinflammation inhibition and neuroprotective effects of purpurin, a potential anti-AD compound, screened via network proximity and gene enrichment analyses. Phytother Res 2024. [PMID: 39351804 DOI: 10.1002/ptr.8064] [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: 06/16/2023] [Revised: 10/18/2023] [Accepted: 10/22/2023] [Indexed: 10/03/2024]
Abstract
Alzheimer's disease (AD) is a complex neurodegenerative disease without any effective preventive or therapeutic drugs. Natural products with stable structures and pharmacological characteristics are valuable sources for the development of novel drugs for many complex diseases. This study aimed to discover potential natural compounds for the treatment of AD using new technologies and methods and explore the efficacy and mechanism of candidate compounds. AD-related large-scale genetic datasets were collated to construct disease-PPIs and natural products were collected from six databases to construct compound-protein interactions (CPIs). Potential relationships between natural compounds and AD were predicted via network proximity and gene enrichment analyses. Then, five AD-related cell models and d-galactose-induced aging rat model were established to evaluate the neuroprotective effects of candidate compounds in vitro and in vivo. We identified that 267 natural compounds were predicted to have close connections with AD and 19 compounds could exert protective effect in at least one cell model. Notably, purpurin exerted protective effect in three cell models and significantly improved the cognitive learning and memory functions, reduced the oxidative stress injuries and neuroinflammation, and enhanced the synaptic plasticity and neurotrophic effect in the brain of d-galactose-treated rats. In this study, AD-related natural compounds were identified via network proximity and gene enrichment analyses. In vivo and in vitro experiments revealed the therapeutic potential of purpurin for AD treatment, laying the foundation for further in-depth research and providing valuable information for the development of novel anti-AD drugs.
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Affiliation(s)
- Jun Zhao
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
- Beijing Key Lab of Drug Target Identification and Drug Screening, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Pengfei Guo
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
- Beijing Key Lab of Drug Target Identification and Drug Screening, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Jiansong Fang
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Chao Wang
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
- Beijing Key Lab of Drug Target Identification and Drug Screening, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Caiqin Yan
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
- Beijing Key Lab of Drug Target Identification and Drug Screening, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Yiming Bai
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
- Beijing Key Lab of Drug Target Identification and Drug Screening, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Zhe Wang
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
- Beijing Key Lab of Drug Target Identification and Drug Screening, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Guanhua Du
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
- Beijing Key Lab of Drug Target Identification and Drug Screening, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Ailin Liu
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
- Beijing Key Lab of Drug Target Identification and Drug Screening, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
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16
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Meng F, Song J, Huang X, Zhang M, Sun X, Jing Q, Cao S, Xie Z, Liu Q, Zhang H, Li C. Inhibiting endoplasmic reticulum stress alleviates perioperative neurocognitive disorders by reducing neuroinflammation mediated by NLRP3 inflammasome activation. CNS Neurosci Ther 2024; 30:e70049. [PMID: 39432407 PMCID: PMC11493103 DOI: 10.1111/cns.70049] [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: 03/12/2024] [Revised: 08/12/2024] [Accepted: 09/04/2024] [Indexed: 10/23/2024] Open
Abstract
AIM The aim of this study is to explore the key mechanisms of perioperative neurocognitive dysfunction (PND) after anesthesia/surgery (A/S) by screening hub genes. METHODS Transcriptome sequencing was conducted on hippocampal samples obtained from 18-month-old C57BL/6 mice assigned to control (Ctrl) and A/S groups. The functionality of differentially expressed genes (DEGs) was investigated using Metascape. Hub genes associated with changes between the two groups were screened by combining weighted gene coexpression network analysis within CytoHubba. Reverse transcription PCR and western blotting were used to validate changes in mRNA and protein expression, respectively. NLRP3 inflammasome activation was detected by western blotting and ELISA. Tauroursodeoxycholic acid (TUDCA), an inhibitor of endoplasmic reticulum (ER) stress, was administrated preoperatively to explore its effects on the occurrence of PND. Immunofluorescence analysis was performed to evaluate the activation of astrocytes and microglia in the hippocampus, and hippocampus-dependent learning and memory were assessed using behavioral experiments. RESULTS In total, 521 DEGs were detected between the control and A/S groups. These DEGs were significantly enriched in biological processes related to metabolic processes and their regulation. Four hub genes (Hspa5, Igf1r, Sfpq, and Xbp1) were identified. Animal experiments have shown that mice in the A/S group exhibited cognitive impairments accompanied by increased Hspa5 and Xbp1 expression, ER stress, and activation of NLRP3 inflammasome. CONCLUSIONS Inhibiting ER stress alleviated cognitive impairment in A/S mice; particularly, ER stress induced by A/S results in NLRP3 inflammasome activation and neuroinflammation. Moreover, the preoperative administration of TUDCA inhibited ER stress, NLRP3 inflammasome activation, and neuroinflammation.
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Affiliation(s)
- Fanbing Meng
- Department of Anesthesiology and Perioperative Medicine, Shanghai Key Laboratory of Anesthesiology and Brain Functional Modulation, Clinical Research Center for Anesthesiology and Perioperative Medicine, Translational Research Institute of Brain and Brain‐Like IntelligenceShanghai Fourth People's Hospital, School of Medicine, Tongji UniversityShanghaiChina
| | - Jian Song
- Department of Anesthesiology and Perioperative Medicine, Shanghai Key Laboratory of Anesthesiology and Brain Functional Modulation, Clinical Research Center for Anesthesiology and Perioperative Medicine, Translational Research Institute of Brain and Brain‐Like IntelligenceShanghai Fourth People's Hospital, School of Medicine, Tongji UniversityShanghaiChina
| | - Xinwei Huang
- Department of Anesthesiology and Perioperative Medicine, Shanghai Key Laboratory of Anesthesiology and Brain Functional Modulation, Clinical Research Center for Anesthesiology and Perioperative Medicine, Translational Research Institute of Brain and Brain‐Like IntelligenceShanghai Fourth People's Hospital, School of Medicine, Tongji UniversityShanghaiChina
| | - Meixian Zhang
- Department of Anesthesiology and Perioperative Medicine, Shanghai Key Laboratory of Anesthesiology and Brain Functional Modulation, Clinical Research Center for Anesthesiology and Perioperative Medicine, Translational Research Institute of Brain and Brain‐Like IntelligenceShanghai Fourth People's Hospital, School of Medicine, Tongji UniversityShanghaiChina
| | - Xiaoxiao Sun
- Department of Anesthesiology and Perioperative Medicine, Shanghai Key Laboratory of Anesthesiology and Brain Functional Modulation, Clinical Research Center for Anesthesiology and Perioperative Medicine, Translational Research Institute of Brain and Brain‐Like IntelligenceShanghai Fourth People's Hospital, School of Medicine, Tongji UniversityShanghaiChina
| | - Qi Jing
- Department of Anesthesiology and Perioperative Medicine, Shanghai Key Laboratory of Anesthesiology and Brain Functional Modulation, Clinical Research Center for Anesthesiology and Perioperative Medicine, Translational Research Institute of Brain and Brain‐Like IntelligenceShanghai Fourth People's Hospital, School of Medicine, Tongji UniversityShanghaiChina
| | - Silu Cao
- Department of Anesthesiology and Perioperative Medicine, Shanghai Key Laboratory of Anesthesiology and Brain Functional Modulation, Clinical Research Center for Anesthesiology and Perioperative Medicine, Translational Research Institute of Brain and Brain‐Like IntelligenceShanghai Fourth People's Hospital, School of Medicine, Tongji UniversityShanghaiChina
| | - Zheng Xie
- Department of Anesthesiology and Perioperative Medicine, Shanghai Key Laboratory of Anesthesiology and Brain Functional Modulation, Clinical Research Center for Anesthesiology and Perioperative Medicine, Translational Research Institute of Brain and Brain‐Like IntelligenceShanghai Fourth People's Hospital, School of Medicine, Tongji UniversityShanghaiChina
| | - Qiong Liu
- Department of Anesthesiology and Perioperative Medicine, Shanghai Key Laboratory of Anesthesiology and Brain Functional Modulation, Clinical Research Center for Anesthesiology and Perioperative Medicine, Translational Research Institute of Brain and Brain‐Like IntelligenceShanghai Fourth People's Hospital, School of Medicine, Tongji UniversityShanghaiChina
| | - Hui Zhang
- Department of Anesthesiology and Perioperative Medicine, Shanghai Key Laboratory of Anesthesiology and Brain Functional Modulation, Clinical Research Center for Anesthesiology and Perioperative Medicine, Translational Research Institute of Brain and Brain‐Like IntelligenceShanghai Fourth People's Hospital, School of Medicine, Tongji UniversityShanghaiChina
| | - Cheng Li
- Department of Anesthesiology and Perioperative Medicine, Shanghai Key Laboratory of Anesthesiology and Brain Functional Modulation, Clinical Research Center for Anesthesiology and Perioperative Medicine, Translational Research Institute of Brain and Brain‐Like IntelligenceShanghai Fourth People's Hospital, School of Medicine, Tongji UniversityShanghaiChina
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17
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Tate M, Wijeratne HRS, Kim B, Philtjens S, You Y, Lee DH, Gutierrez DA, Sharify D, Wells M, Perez-Cardelo M, Doud EH, Fernandez-Hernando C, Lasagna-Reeves C, Mosley AL, Kim J. Deletion of miR-33, a regulator of the ABCA1-APOE pathway, ameliorates neuropathological phenotypes in APP/PS1 mice. Alzheimers Dement 2024. [PMID: 39345217 DOI: 10.1002/alz.14243] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2024] [Revised: 08/15/2024] [Accepted: 08/15/2024] [Indexed: 10/01/2024]
Abstract
INTRODUCTION Rare variants in ABCA1 increase the risk of developing Alzheimer's disease (AD). ABCA1 facilitates the lipidation of apolipoprotein E (apoE). This study investigated whether microRNA-33 (miR-33)-mediated regulation of this ABCA1-APOE pathway affects phenotypes of an amyloid mouse model. METHODS We generated mir-33+/+;APP/PS1 and mir-33-/-;APP/PS1 mice to determine changes in amyloid pathology using biochemical and histological analyses. We used RNA sequencing and mass spectrometry to identify the transcriptomic and proteomic changes between our genotypes. We also performed mechanistic experiments by determining the role of miR-33 in microglial migration and amyloid beta (Aβ) phagocytosis. RESULTS Mir-33 deletion increases ABCA1 levels and reduces Aβ accumulation and glial activation. Multi-omics studies suggested miR-33 regulates the activation and migration of microglia. We confirm that the inhibition of miR-33 significantly increases microglial migration and Aβ phagocytosis. DISCUSSION These results suggest that miR-33 might be a potential drug target by modulating ABCA1 level, apoE lipidation, Aβ level, and microglial function. HIGHLIGHTS Loss of microRNA-33 (miR-33) increased ABCA1 protein levels and the lipidation of apolipoprotein E. Loss of miR-33 reduced amyloid beta (Aβ) levels, plaque deposition, and gliosis. mRNAs and proteins dysregulated by miR-33 loss relate to microglia and Alzheimer's disease. Inhibition of miR-33 increased microglial migration and Aβ phagocytosis in vitro.
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Affiliation(s)
- Mason Tate
- Stark Neuroscience Research Institute, Indiana University School of Medicine, Indianapolis, Indiana, USA
- Medical Neuroscience Graduate Program, Indiana University School of Medicine, Indianapolis, Indiana, USA
| | - H R Sagara Wijeratne
- Stark Neuroscience Research Institute, Indiana University School of Medicine, Indianapolis, Indiana, USA
- Medical Neuroscience Graduate Program, Indiana University School of Medicine, Indianapolis, Indiana, USA
- Department of Biochemistry and Molecular Biology, Indiana University School of Medicine, Indianapolis, Indiana, USA
| | - Byungwook Kim
- Stark Neuroscience Research Institute, Indiana University School of Medicine, Indianapolis, Indiana, USA
- Department of Medical & Molecular Genetics, Indiana University School of Medicine, Indianapolis, Indiana, USA
| | - Stéphanie Philtjens
- Stark Neuroscience Research Institute, Indiana University School of Medicine, Indianapolis, Indiana, USA
- Department of Medical & Molecular Genetics, Indiana University School of Medicine, Indianapolis, Indiana, USA
| | - Yanwen You
- Stark Neuroscience Research Institute, Indiana University School of Medicine, Indianapolis, Indiana, USA
| | - Do-Hun Lee
- Department of Medical & Molecular Genetics, Indiana University School of Medicine, Indianapolis, Indiana, USA
| | - Daniela A Gutierrez
- Stark Neuroscience Research Institute, Indiana University School of Medicine, Indianapolis, Indiana, USA
- Department of Medical & Molecular Genetics, Indiana University School of Medicine, Indianapolis, Indiana, USA
| | - Daniel Sharify
- Stark Neuroscience Research Institute, Indiana University School of Medicine, Indianapolis, Indiana, USA
| | - Megan Wells
- Stark Neuroscience Research Institute, Indiana University School of Medicine, Indianapolis, Indiana, USA
| | - Magdalena Perez-Cardelo
- Vascular Biology and Therapeutics Program, Yale University School of Medicine, New Haven, Connecticut, USA
- Department of Comparative Medicine, Yale University School of Medicine, New Haven, Connecticut, USA
- Yale Center for Molecular and System Metabolism, Yale University School of Medicine, New Haven, Connecticut, USA
| | - Emma H Doud
- Department of Biochemistry and Molecular Biology, Indiana University School of Medicine, Indianapolis, Indiana, USA
- Center for Proteome Analysis, Indiana University School of Medicine, Indianapolis, Indiana, USA
| | - Carlos Fernandez-Hernando
- Vascular Biology and Therapeutics Program, Yale University School of Medicine, New Haven, Connecticut, USA
- Department of Comparative Medicine, Yale University School of Medicine, New Haven, Connecticut, USA
- Yale Center for Molecular and System Metabolism, Yale University School of Medicine, New Haven, Connecticut, USA
| | - Cristian Lasagna-Reeves
- Stark Neuroscience Research Institute, Indiana University School of Medicine, Indianapolis, Indiana, USA
- Department of Medical & Molecular Genetics, Indiana University School of Medicine, Indianapolis, Indiana, USA
| | - Amber L Mosley
- Stark Neuroscience Research Institute, Indiana University School of Medicine, Indianapolis, Indiana, USA
- Department of Biochemistry and Molecular Biology, Indiana University School of Medicine, Indianapolis, Indiana, USA
- Center for Proteome Analysis, Indiana University School of Medicine, Indianapolis, Indiana, USA
| | - Jungsu Kim
- Stark Neuroscience Research Institute, Indiana University School of Medicine, Indianapolis, Indiana, USA
- Medical Neuroscience Graduate Program, Indiana University School of Medicine, Indianapolis, Indiana, USA
- Department of Medical & Molecular Genetics, Indiana University School of Medicine, Indianapolis, Indiana, USA
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Zhao Y, Huang Y, Cao Y, Yang J. Astrocyte-Mediated Neuroinflammation in Neurological Conditions. Biomolecules 2024; 14:1204. [PMID: 39456137 PMCID: PMC11505625 DOI: 10.3390/biom14101204] [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: 08/09/2024] [Revised: 09/15/2024] [Accepted: 09/18/2024] [Indexed: 10/28/2024] Open
Abstract
Astrocytes are one of the key glial types of the central nervous system (CNS), accounting for over 20% of total glial cells in the brain. Extensive evidence has established their indispensable functions in the maintenance of CNS homeostasis, as well as their broad involvement in neurological conditions. In particular, astrocytes can participate in various neuroinflammatory processes, e.g., releasing a repertoire of cytokines and chemokines or specific neurotrophic factors, which result in both beneficial and detrimental effects. It has become increasingly clear that such astrocyte-mediated neuroinflammation, together with its complex crosstalk with other glial cells or immune cells, designates neuronal survival and the functional integrity of neurocircuits, thus critically contributing to disease onset and progression. In this review, we focus on the current knowledge of the neuroinflammatory responses of astrocytes, summarizing their common features in neurological conditions. Moreover, we highlight several vital questions for future research that promise novel insights into diagnostic or therapeutic strategies against those debilitating CNS diseases.
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Affiliation(s)
- Yanxiang Zhao
- State Key Laboratory of Membrane Biology, School of Life Sciences, Peking University, Beijing 100871, China
- The Affiliated High School, Peking University, Beijing 100080, China
| | - Yingying Huang
- State Key Laboratory of Membrane Biology, School of Life Sciences, Peking University, Beijing 100871, China
| | - Ying Cao
- Center for Life Sciences, Academy for Advanced Interdisciplinary Studies, Peking University, Beijing 100871, China
| | - Jing Yang
- State Key Laboratory of Membrane Biology, School of Life Sciences, Peking University, Beijing 100871, China
- Center for Life Sciences, Academy for Advanced Interdisciplinary Studies, Peking University, Beijing 100871, China
- Peking University Third Hospital Cancer Center, Beijing 100191, China
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19
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Bhatt A, Bhardwaj H, Srivastava P. Mesenchymal stem cell therapy for Alzheimer's disease: A novel therapeutic approach for neurodegenerative diseases. Neuroscience 2024; 555:52-68. [PMID: 39032806 DOI: 10.1016/j.neuroscience.2024.07.019] [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: 04/22/2024] [Revised: 07/10/2024] [Accepted: 07/11/2024] [Indexed: 07/23/2024]
Abstract
Alzheimer's disease (AD) is one of the most progressive and prevalent types of neurodegenerative diseases in the aging population (aged >65 years) and is considered a major factor for dementia, affecting 55 million people worldwide. In the current scenario, drug-based therapies have been employed for the treatment of Alzheimer's disease but are only able to provide symptomatic relief to patients rather than a permanent solution from Alzheimer's. Recent advancements in stem cell research unlock new horizons for developing effective and highly potential therapeutic approaches due to their self-renewal, self-replicating, regenerative, and high differentiation capabilities. Stem cells come in multiple lineages such as embryonic, neural, and induced pluripotent, among others. Among different kinds of stem cells, mesenchymal stem cells are the most investigated for Alzheimer's treatment due to their multipotent nature, low immunogenicity, ability to penetrate the blood-brain barrier, and low risk of tumorigenesis, immune & inflammatory modulation, etc. They have been seen to substantially promote neurogenesis, synaptogenesis by secreting neurotrophic growth factors, as well as in ameliorating the Aβ and tau-mediated toxicity. This review covers the pathophysiology of AD, new medications, and therapies. Further, it will focus on the advancements and benefits of Mesenchymal Stem Cell therapies, their administration methods, clinical trials concerning AD progression, along with their future prospective.
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Affiliation(s)
- Aditya Bhatt
- Department of Biosciences, Institute of Management Studies Ghaziabad (University Courses Campus), NH09, Adhyatmik Nagar, Ghaziabad, Uttar Pradesh, India
| | - Harshita Bhardwaj
- Department of Biosciences, Institute of Management Studies Ghaziabad (University Courses Campus), NH09, Adhyatmik Nagar, Ghaziabad, Uttar Pradesh, India
| | - Priyanka Srivastava
- Department of Biosciences, Institute of Management Studies Ghaziabad (University Courses Campus), NH09, Adhyatmik Nagar, Ghaziabad, Uttar Pradesh, India.
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20
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Xie Y, Fang C, Lu L, Wang J, Wu L, Wang S, Guo Q, Yan W, Wei J, Duan F, Huang L. Extract of Tinospora sinensis alleviates LPS-induced neuroinflammation in mice by regulating TLR4/NF-κB/NLRP3 signaling pathway. JOURNAL OF ETHNOPHARMACOLOGY 2024; 337:118807. [PMID: 39245241 DOI: 10.1016/j.jep.2024.118807] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2024] [Revised: 09/03/2024] [Accepted: 09/06/2024] [Indexed: 09/10/2024]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE The dried rattan stem of Tinospora sinensis (Lour.) Merr. is valued for its efficacy of clearing heat and removing toxicity, calming and soothing the nerves. It is widely used in Tibetan medicine for the treatment of rheumatic and aging diseases. Studies have confirmed its anti-inflammatory and ameliorating effects on Alzheimer's disease; however, the anti-neuroinflammation efficacy and mechanism remain unclear. AIM This study aimed to explore the anti-neuroinflammation efficacy, major effective ingredients, and potential mechanism of extract of Tinosporae sinenisis (TIS). METHODS UPLC-Q-TOF/MS was used to identify the compounds of TIS and the plasma components of rats after gastric administration of TIS. C57BL/6 J mice were continuously intraperitoneally injected with lipopolysaccharide (LPS) (250 μg/kg) for 14 d to establish a neuroinflammation model. The effects of TIS (4.5 g/kg, 9 g/kg) on the learning and memory abilities in mice with neuroinflammation was evaluated using spontaneous activity, novel object recognition, and Morris water maze tests. Pathological changes in the hippocampus were observed using hematoxylin and eosin staining. Gene and protein levels of inflammatory factors in the brain were detected using qRT-PCR and ELISA kits. Iba-1 levels in the brain were detected using immunofluorescence to assess the degree of microglial activation. Network pharmacology, based on the components absorbed into plasma of TIS, was used to predict potential targets and pathways. Proteomics was used to study the differentially expressed proteins and related pathways in the brain tissue of mice with neuroinflammation. Finally, correlation analysis was performed on the results of network pharmacology and proteomics, and proteins related the anti-neuroinflammatory effect of TIS were detected by western blot. RESULTS A total of 39 compounds were identified in TIS: genipingentiobioside, isocorydin, reticuline, (-)-argemonine, tinosineside A, tinosinenside A, and costunolide were absorbed into the plasma. After continuous intraperitoneal injection of LPS into C57BL/6 J mice, microglia in the brain tissue were activated and the gene and protein levels of IL-1β, TNF-α, IL-6, and iNOS were increased in the brain tissue, suggesting that the neuroinflammation model was successfully established. TIS reduced Iba-1 levels and gene expression and protein levels of inflammatory factors in the brain of mice with neuroinflammation. Furthermore, TIS improved the pathological changes in the hippocampus and learning and memory abilities caused by neuroinflammation. Network pharmacology has predicted that TNF, IL-1β, and IκBKB are closely related to neuroinflammation. Proteomics identified key differentially expressed proteins, including TNF, NF-κB2, NF-κBIA, and TLR4. Toll-like receptor (TLR), NF-κB, and NOD-like receptor (NLR) signaling pathways are involved in neuroinflammation-related pathways. Correlation analysis revealed TLR, TNF and NLR signaling pathways were closely related to the anti-neuroinflammatory effects of TIS. We observed that TIS alleviated neuroinflammation by inhibiting the TLR4/NF-κB/NLRP3 pathway. CONCLUSION Thirty-nine compounds were identified from TIS, among which seven were absorbed into the plasma as prototype components. TIS alleviated LPS-induced neuroinflammation in mice, and its mechanism was related to inhibition of TLR4/NF-κB/NLRP3 signaling pathway.
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Affiliation(s)
- Yongyan Xie
- School of Pharmacy, Jiangxi University of Chinese Medicine, Nanchang, China; College of Traditional Chinese Medicine, Jiangxi University of Chinese Medicine, Nanchang, China
| | - Cong Fang
- School of Pharmacy, Jiangxi University of Chinese Medicine, Nanchang, China
| | - Longhui Lu
- School of Pharmacy, Jiangxi University of Chinese Medicine, Nanchang, China
| | - Jingjing Wang
- School of Pharmacy, Jiangxi University of Chinese Medicine, Nanchang, China
| | - Li Wu
- School of Pharmacy, Jiangxi University of Chinese Medicine, Nanchang, China; College of Traditional Chinese Medicine, Jiangxi University of Chinese Medicine, Nanchang, China
| | - Shuaikang Wang
- School of Pharmacy, Jiangxi University of Chinese Medicine, Nanchang, China
| | - Qiujing Guo
- School of Pharmacy, Jiangxi University of Chinese Medicine, Nanchang, China
| | - Wenyan Yan
- School of Pharmacy, Jiangxi University of Chinese Medicine, Nanchang, China
| | - Jinghua Wei
- School of Pharmacy, Jiangxi University of Chinese Medicine, Nanchang, China
| | - Feipeng Duan
- School of Pharmacy, Jiangxi University of Chinese Medicine, Nanchang, China.
| | - Liping Huang
- School of Pharmacy, Jiangxi University of Chinese Medicine, Nanchang, China; Jiangxi Province Key Laboratory of Pharmacology of Traditional Chinese Medicine, Nanchang, China.
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21
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Liu E, Zhang Y, Wang JZ. Updates in Alzheimer's disease: from basic research to diagnosis and therapies. Transl Neurodegener 2024; 13:45. [PMID: 39232848 PMCID: PMC11373277 DOI: 10.1186/s40035-024-00432-x] [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: 03/12/2024] [Accepted: 07/11/2024] [Indexed: 09/06/2024] Open
Abstract
Alzheimer's disease (AD) is the most common neurodegenerative disorder, characterized pathologically by extracellular deposition of β-amyloid (Aβ) into senile plaques and intracellular accumulation of hyperphosphorylated tau (pTau) as neurofibrillary tangles. Clinically, AD patients show memory deterioration with varying cognitive dysfunctions. The exact molecular mechanisms underlying AD are still not fully understood, and there are no efficient drugs to stop or reverse the disease progression. In this review, we first provide an update on how the risk factors, including APOE variants, infections and inflammation, contribute to AD; how Aβ and tau become abnormally accumulated and how this accumulation plays a role in AD neurodegeneration. Then we summarize the commonly used experimental models, diagnostic and prediction strategies, and advances in periphery biomarkers from high-risk populations for AD. Finally, we introduce current status of development of disease-modifying drugs, including the newly officially approved Aβ vaccines, as well as novel and promising strategies to target the abnormal pTau. Together, this paper was aimed to update AD research progress from fundamental mechanisms to the clinical diagnosis and therapies.
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Affiliation(s)
- Enjie Liu
- Department of Pathology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China
| | - Yao Zhang
- Department of Endocrine, Liyuan Hospital, Key Laboratory of Ministry of Education for Neurological Disorders, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430077, China
| | - Jian-Zhi Wang
- Department of Pathology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China.
- Department of Pathophysiology, Key Laboratory of Ministry of Education for Neurological Disorders, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China.
- Co-Innovation Center of Neuroregeneration, Nantong University, Nantong, 226000, China.
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22
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Kostic M, Zivkovic N, Cvetanovic A, Basic J, Stojanovic I. Dissecting the immune response of CD4 + T cells in Alzheimer's disease. Rev Neurosci 2024:revneuro-2024-0090. [PMID: 39238424 DOI: 10.1515/revneuro-2024-0090] [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: 07/04/2024] [Accepted: 08/18/2024] [Indexed: 09/07/2024]
Abstract
The formation of amyloid-β (Aβ) plaques is a neuropathological hallmark of Alzheimer's disease (AD), however, these pathological aggregates can also be found in the brains of cognitively unimpaired elderly population. In that context, individual variations in the Aβ-specific immune response could be key factors that determine the level of Aβ-induced neuroinflammation and thus the propensity to develop AD. CD4+ T cells are the cornerstone of the immune response that coordinate the effector functions of both adaptive and innate immunity. However, despite intensive research efforts, the precise role of these cells during AD pathogenesis is still not fully elucidated. Both pathogenic and beneficial effects have been observed in various animal models of AD, as well as in humans with AD. Although this functional duality of CD4+ T cells in AD can be simply attributed to the vast phenotype heterogeneity of this cell lineage, disease stage-specific effect have also been proposed. Therefore, in this review, we summarized the current understanding of the role of CD4+ T cells in the pathophysiology of AD, from the aspect of their antigen specificity, activation, and phenotype characteristics. Such knowledge is of practical importance as it paves the way for immunomodulation as a therapeutic option for AD treatment, given that currently available therapies have not yielded satisfactory results.
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Affiliation(s)
- Milos Kostic
- Department of Immunology, Medical Faculty of Nis, University of Nis, Blvd. dr Zorana Djindjica 81, Nis, 18000, Serbia
| | - Nikola Zivkovic
- Department of Pathology, Medical Faculty of Nis, University of Nis, Blvd. dr Zorana Djindjica 81, Nis, 18000, Serbia
| | - Ana Cvetanovic
- Department of Oncology, Medical Faculty of Nis, University of Nis, Blvd. dr Zorana Djindjica 81, Nis, 18000, Serbia
| | - Jelena Basic
- Department of Biochemistry, Medical Faculty of Nis, University of Nis, Blvd. dr Zorana Djindjica 81, Nis, 18000, Serbia
| | - Ivana Stojanovic
- Department of Biochemistry, Medical Faculty of Nis, University of Nis, Blvd. dr Zorana Djindjica 81, Nis, 18000, Serbia
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23
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Carrero L, Antequera D, Municio C, Carro E. Circadian rhythm disruption and retinal dysfunction: a bidirectional link in Alzheimer's disease? Neural Regen Res 2024; 19:1967-1972. [PMID: 38227523 DOI: 10.4103/1673-5374.390962] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Accepted: 11/07/2023] [Indexed: 01/17/2024] Open
Abstract
Dysfunction in circadian rhythms is a common occurrence in patients with Alzheimer's disease. A predominant function of the retina is circadian synchronization, carrying information to the brain through the retinohypothalamic tract, which projects to the suprachiasmatic nucleus. Notably, Alzheimer's disease hallmarks, including amyloid-β, are present in the retinas of Alzheimer's disease patients, followed/associated by structural and functional disturbances. However, the mechanistic link between circadian dysfunction and the pathological changes affecting the retina in Alzheimer's disease is not fully understood, although some studies point to the possibility that retinal dysfunction could be considered an early pathological process that directly modulates the circadian rhythm.
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Affiliation(s)
- Laura Carrero
- Group of Neurodegenerative Diseases, Hospital Universitario 12 de Octubre Research Institute (imas12), Madrid, Spain; Network Center for Biomedical Research in Neurodegenerative Diseases (CIBERNED), ISCIII, Madrid, Spain
- PhD Program in Neuroscience, Autonoma de Madrid University, Madrid, Spain
| | - Desireé Antequera
- Neurobiology of Alzheimer's Disease Unit, Functional Unit for Research into Chronic Diseases, Instituto de Salud Carlos III, Madrid, Spain; Network Centre for Biomedical Research in Neurodegenerative Diseases (CIBERNED), ISCIII, Madrid, Spain
| | - Cristina Municio
- Group of Neurodegenerative Diseases, Hospital Universitario 12 de Octubre Research Institute (imas12), Madrid, Spain; Network Center for Biomedical Research in Neurodegenerative Diseases (CIBERNED), ISCIII, Madrid, Spain
| | - Eva Carro
- Neurobiology of Alzheimer's Disease Unit, Functional Unit for Research into Chronic Diseases, Instituto de Salud Carlos III, Madrid, Spain; Network Centre for Biomedical Research in Neurodegenerative Diseases (CIBERNED), ISCIII, Madrid, Spain
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24
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Xu K, Huang Q, Lyu Y, Wang S, Lu Y, Qian G. Phosphatidylserine improves aging sepsis survival, modulates gut microbiome, and prevents sepsis-associated encephalopathy. Biomed Pharmacother 2024; 178:117200. [PMID: 39053420 DOI: 10.1016/j.biopha.2024.117200] [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: 04/11/2024] [Revised: 07/17/2024] [Accepted: 07/22/2024] [Indexed: 07/27/2024] Open
Abstract
Aged adults are prone to both short- and long-term complications following sepsis due to ineffective therapy. Phosphatidylserine (PS) is a membrane nutrient supplement known to enhance cognition and brain function, but its potential effects in treating sepsis are not well-documented. Our study aimed to explore the potential of PS in improving outcomes in sepsis and sepsis-associated encephalopathy (SAE). Middle-aged mice were administered PS for two months following induction of sepsis by lipopolysaccharides. The results indicated a significant increase in the survival rate of mice treated with PS after sepsis. Surviving mice underwent open field and shuttle box tests 45 days post-sepsis, revealing potential alleviation of neurobehavioral impairments due to PS pretreatment. Analysis at 60 days post-sepsis euthanasia showed reduced cleaved-caspase 3 in neurons and glial cell markers in the PS-treated group compared to the untreated sepsis group. Furthermore, PS administration effectively reduced proinflammatory cytokine gene expression in the hippocampus of mice with SAE, potentially inhibiting the TBK1/NLRP3/ASC signaling pathway. In the gut, PS pretreatment modulated β-diversity while maintaining jejunal morphology and colon ZO-1 expression, without significantly affecting α-diversity indices. Our findings suggest that PS administration improves survival rates, modulates the gut microbiome, preserves gut integrity, and ameliorates brain pathology in survived mice after sepsis. Importantly, these findings have significant implications for sepsis treatment and cognitive function preservation in aging individuals, providing new insights and sparking further interest and investigation into the potential of PS in sepsis treatment.
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Affiliation(s)
- Kejia Xu
- Department of Anesthesiology and Hongqiao International Institute of Medicine, Tongren Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200336, China
| | - Qiong Huang
- Department of Neurology, Tongren Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200336, China
| | - Ying Lyu
- Department of Traditional Chinese Medicine, Tongren Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200336, China
| | - Shuyan Wang
- Department of Anesthesiology and Hongqiao International Institute of Medicine, Tongren Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200336, China
| | - Yinzhong Lu
- Department of Anesthesiology and Hongqiao International Institute of Medicine, Tongren Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200336, China.
| | - Gang Qian
- Department of Anesthesiology and Hongqiao International Institute of Medicine, Tongren Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200336, China; Shanghai Changning Maternity and Infant Health Hospital, Shanghai 200050, China.
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25
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Xu Y, Lin F, Liao G, Sun J, Chen W, Zhang L. Ripks and Neuroinflammation. Mol Neurobiol 2024; 61:6771-6787. [PMID: 38349514 DOI: 10.1007/s12035-024-03981-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Accepted: 01/20/2024] [Indexed: 08/22/2024]
Abstract
Neuroinflammation is an immune response in the central nervous system and poses a significant threat to human health. Studies have shown that the receptor serine/threonine protein kinase family (RIPK) family, a popular research target in inflammation, has been shown to play an essential role in neuroinflammation. It is significant to note that the previous reviews have only examined the link between RIPK1 and neuroinflammation. However, it has yet to systematically analyze the relationship between the RIPK family and neuroinflammation. Activation of RIPK1 promotes neuroinflammation. RIPK1 and RIPK3 are responsible for the control of cell death, including apoptosis, necrosis, and inflammation. RIPK1 and RIPK3 regulate inflammatory responses through the release of damage in necroptosis. RIPK1 and RIPK3 regulate inflammatory responses by releasing damage-associated molecular patterns (DAMPs) during necrosis. In addition, activated RIPK1 nuclear translocation and its interaction with the BAF complex leads to upregulation of chromatin modification and inflammatory gene expression, thereby triggering inflammation. Although RIPK2 is not directly involved in regulating cell death, it is considered an essential target for treating neurological inflammation. When the peptidoglycan receptor detects peptidoglycan IE-DAP or MDP in bacteria, it prompts NOD1 and NOD2 to recruit RIPK2 and activate the XIAP E3 ligase. This leads to the K63 ubiquitination of RIPK2. This is followed by LUBAC-mediated linear ubiquitination, which activates NF-KB and MAPK pathways to produce cytokines and chemokines. In conclusion, there are seven known members of the RIPK family, but RIPK4, RIPK5, RIPK6, and RIPK7 have not been linked to neuroinflammation. This article seeks to explore the potential of RIPK1, RIPK2, and RIPK3 kinases as therapeutic interventions for neuroinflammation, which is associated with Alzheimer's disease (AD), amyotrophic lateral sclerosis (ALS), ischemic stroke, Parkinson's disease (PD), multiple sclerosis (MS), and traumatic brain injury (TBI).
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Affiliation(s)
- Yue Xu
- Department of Cerebrovascular Disease, Sun Yat-Sen University, The Fifth Affiliated Hospital, Zhuhai, 519000, Guangdong, People's Republic of China
| | - Feng Lin
- Department of Cerebrovascular Disease, Sun Yat-Sen University, The Fifth Affiliated Hospital, Zhuhai, 519000, Guangdong, People's Republic of China
| | - Guolei Liao
- Department of Cerebrovascular Disease, Sun Yat-Sen University, The Fifth Affiliated Hospital, Zhuhai, 519000, Guangdong, People's Republic of China
| | - Jiaxing Sun
- Department of Cerebrovascular Disease, Sun Yat-Sen University, The Fifth Affiliated Hospital, Zhuhai, 519000, Guangdong, People's Republic of China
| | - Wenli Chen
- Department of Pharmacy, Sun Yat-Sen University, The Fifth Affiliated Hospital, Zhuhai, 519000, Guangdong, People's Republic of China.
| | - Lei Zhang
- Department of Cerebrovascular Disease, Sun Yat-Sen University, The Fifth Affiliated Hospital, Zhuhai, 519000, Guangdong, People's Republic of China.
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Shen Y, Liu F, Zhang M. Therapeutic potential of plant-derived natural compounds in Alzheimer's disease: Targeting microglia-mediated neuroinflammation. Biomed Pharmacother 2024; 178:117235. [PMID: 39094545 DOI: 10.1016/j.biopha.2024.117235] [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: 06/12/2024] [Revised: 07/27/2024] [Accepted: 07/30/2024] [Indexed: 08/04/2024] Open
Abstract
Microglia are resident immune cells of the central nervous system (CNS) with roles in sensing, housekeeping, and defense. Exploring the role of microglia in the occurrence and development of Alzheimer's disease (AD) and the possible therapeutic mechanism of plant-derived natural compounds (PDNCs) that regulate microglia-associated neuroinflammation may potentially help in elucidating the pathogenesis of AD and provide novel insights for its treatment. This review explores the role of abnormal microglial activation and its dominant neuroinflammatory response, as well as the activation of their target receptors and signaling pathways in AD pathogenesis. Additionally, we report an update on the potential pharmacological mechanisms of multiple PDNCs in modulating microglia-associated neuroinflammation in AD treatment. Dysregulated activation of microglial receptors and their downstream pathways impaired immune homeostasis in animal models of AD. Multiple signaling pathways, such as mitogen-activated protein kinase (MAPK), nuclear factor kappa light chain enhancer of activated B cells (NF-κB), and Toll-like receptors, play important roles in microglial activation and can exacerbate microglia-mediated neuroinflammation. PDNCs, such as magnolol, stigmasterol, matrine, naringenin, naringin, and resveratrol, can delay the progression of AD by inhibiting the proinflammatory receptors of microglia, activating its anti-inflammatory receptors, regulating the receptors related to β-amyloid (Aβ) clearance, reversing immune dysregulation, and maintaining the immune homeostasis of microglial downstream pathways. This review summarizes the mechanisms by which microglia cause chronic inflammation in AD and evaluates the beneficial effects of PDNCs on immune regulation in AD by regulating microglial receptors and their downstream pathways.
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Affiliation(s)
- Yanyan Shen
- Department of Neurosurgery, Shengjing Hospital of China Medical University, China.
| | - Fang Liu
- Department of Neurology, The First Affiliated Hospital of China Medical University, China
| | - Mingjie Zhang
- Department of Neurosurgery, Shengjing Hospital of China Medical University, China.
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Xiao Z, Hu R, Liu WL, He XX, Dong MY, Huang ZS. Identification and immunological characterization of genes associated with ferroptosis in Alzheimer's disease and experimental demonstration. Mol Med Rep 2024; 30:155. [PMID: 38963039 PMCID: PMC11240865 DOI: 10.3892/mmr.2024.13279] [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: 03/19/2024] [Accepted: 06/20/2024] [Indexed: 07/05/2024] Open
Abstract
The incidence of Alzheimer's disease (AD) is rising globally, yet its treatment and prediction of this condition remain challenging due to the complex pathophysiological mechanisms associated with it. Consequently, the objective of the present study was to analyze and characterize the molecular mechanisms underlying ferroptosis‑related genes (FEGs) in the pathogenesis of AD, as well as to construct a prognostic model. The findings will provide new insights for the future diagnosis and treatment of AD. First, the AD dataset GSE33000 from the Gene Expression Omnibus database and the FEGs from FerrDB were obtained. Next, unsupervised cluster analysis was used to obtain the FEGs that were most relevant to AD. Subsequently, enrichment analyses were performed on the FEGs to explore biological functions. Subsequently, the role of these genes in the immune microenvironment was elucidated through CIBERSORT. Then, the optimal machine learning was selected by comparing the performance of different machine learning models. To validate the prediction efficiency, the models were validated using nomograms, calibration curves, decision curve analysis and external datasets. Furthermore, the expression of FEGs between different groups was verified using reverse transcription quantitative PCR and western blot analysis. In AD, alterations in the expression of FEGs affect the aggregation and infiltration of certain immune cells. This indicated that the occurrence of AD is strongly associated with immune infiltration. Finally, the most appropriate machine learning models were selected, and AD diagnostic models and nomograms were built. The present study provided novel insights that enhance understanding with regard to the molecular mechanism of action of FEGs in AD. Moreover, the present study provided biomarkers that may facilitate the diagnosis of AD.
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Affiliation(s)
- Zhen Xiao
- School of Basic Medical Sciences, Youjiang Medical University for Nationalities, Baise, Guangxi 533000, P.R. China
| | - Rui Hu
- School of Basic Medical Sciences, Youjiang Medical University for Nationalities, Baise, Guangxi 533000, P.R. China
| | - Wan-Lu Liu
- School of Basic Medical Sciences, Youjiang Medical University for Nationalities, Baise, Guangxi 533000, P.R. China
| | - Xiao-Xuan He
- College of Pharmacy, Guangxi University of Chinese Medicine, Qingxiu, Nanning, Guangxi 530200, P.R. China
| | - Ming-You Dong
- Guangxi Key Laboratory of Molecular Pathology of Hepatobiliary Diseases, Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, Guangxi 533000, P.R. China
| | - Zhong-Shi Huang
- School of Basic Medical Sciences, Youjiang Medical University for Nationalities, Baise, Guangxi 533000, P.R. China
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28
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Lasure VU, Singh Gautam A, Singh RK. Quercetin ameliorates neuroinflammatory and neurodegenerative biomarkers in the brain and improves neurobehavioral parameters in a repeated intranasal amyloid-beta exposed model of Alzheimer's disease. Food Funct 2024; 15:8712-8728. [PMID: 39087409 DOI: 10.1039/d4fo02602k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/02/2024]
Abstract
Objectives: The aim of the present study was to study the potential therapeutic effects of quercetin in protection against repeated intranasal exposure of an amyloid-beta-induced mouse model. Methods: Mice received intranasal Aβ1-42 (5 μg/10 μL) exposure once daily for seven consecutive days. Quercetin was orally administered to them at 30 mg kg-1 and 100 mg kg-1 doses for one week starting from day five following Aβ1-42 peptide administration. Following this, the animals were evaluated for neurobehavioral parameters using a Morris water maze test and a novel object recognition test. Further to this, the biomarkers for neuroinflammation and neurodegeneration were evaluated in the hippocampus and cortex regions of the brain in these animals. Results: Multiple exposures to intranasal Aβ led to a significant decline in the learning and cognitive memory of the animals, whereas oral treatment with quercetin at dosages of 30 and 100 mg kg-1 alleviated Aβ-induced effects. Quercetin treatment significantly reduced Aβ accumulation, oxidative stress and proinflammatory cytokine biomarkers in the brain. In addition, it also alleviated the activation of astrocytic biomarkers, amyloid precursor protein and phosphorylated-tau proteins in the brain. Conclusion: Quercetin was found to be a potent antioxidant, anti-inflammatory compound with protection against neurodegenerative damage and improved learning and cognitive memory in a repeated Aβ-exposure model of AD.
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Affiliation(s)
- Vaibhav Uttamrao Lasure
- Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research (NIPER) - Raebareli, Transit Campus, Bijnour-Sisendi Road, Sarojini Nagar, Lucknow-226002, Uttar Pradesh, India.
| | - Avtar Singh Gautam
- Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research (NIPER) - Raebareli, Transit Campus, Bijnour-Sisendi Road, Sarojini Nagar, Lucknow-226002, Uttar Pradesh, India.
| | - Rakesh Kumar Singh
- Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research (NIPER) - Raebareli, Transit Campus, Bijnour-Sisendi Road, Sarojini Nagar, Lucknow-226002, Uttar Pradesh, India.
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29
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Pocevičiūtė D, Wennström M, Ohlsson B. Okinawa-Based Nordic Diet Decreases Plasma Glial Fibrillary Acidic Protein Levels in Type 2 Diabetes Patients. Nutrients 2024; 16:2847. [PMID: 39275164 PMCID: PMC11396978 DOI: 10.3390/nu16172847] [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: 08/08/2024] [Revised: 08/16/2024] [Accepted: 08/19/2024] [Indexed: 09/16/2024] Open
Abstract
Elevated levels of glial fibrillary acidic protein (GFAP) in plasma reflect neuroinflammation and are linked to cognitive decline. Preclinical studies show that dietary change can attenuate astrocyte reactivity and neuroinflammation. In the current study, we investigate if the Okinawa-based Nordic (O-BN) diet alters plasma GFAP levels in patients with Type 2 Diabetes (T2D), a metabolic disorder associated with cognitive disturbances and an increased risk of dementia. Plasma GFAP levels were measured in T2D patients (n = 30) at baseline, after 3 months of the diet, and after a subsequent 4 months of unrestricted diets. The GFAP levels decreased significantly after 3 months of the diet (p = 0.048) but reverted to baseline levels after 4 months of unrestricted diets. At baseline, the GFAP levels correlated significantly with levels of the neurodegeneration marker neurofilament light polypeptide (r = 0.400*) and, after correcting for age, sex, and body mass index, with proinflammatory plasma cytokines (ranging from r = 0.440* to r = 0.530**) and the metabolic hormone islet amyloid polypeptide (r = 0.478*). We found no correlation with psychological well-being. These results suggest that the O-BN diet reduces neuroinflammation in T2D patients and may thus be an important preventive measure for managing T2D and reducing the risk of neurodegenerative disorders.
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Affiliation(s)
- Dovilė Pocevičiūtė
- Cognitive Disorder Research Unit, Department of Clinical Sciences Malmö, Lund University, 214 28 Malmö, Sweden
| | - Malin Wennström
- Cognitive Disorder Research Unit, Department of Clinical Sciences Malmö, Lund University, 214 28 Malmö, Sweden
| | - Bodil Ohlsson
- Department of Internal Medicine, Lund University, Skåne University Hospital, 214 28 Malmö, Sweden
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30
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Hu J, Huang B, Chen K. The impact of physical exercise on neuroinflammation mechanism in Alzheimer's disease. Front Aging Neurosci 2024; 16:1444716. [PMID: 39233828 PMCID: PMC11371602 DOI: 10.3389/fnagi.2024.1444716] [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: 06/21/2024] [Accepted: 08/07/2024] [Indexed: 09/06/2024] Open
Abstract
Introduction Alzheimer's disease (AD), a major cause of dementia globally, imposes significant societal and personal costs. This review explores the efficacy of physical exercise as a non-pharmacological intervention to mitigate the impacts of AD. Methods This review draws on recent studies that investigate the effects of physical exercise on neuroinflammation and neuronal enhancement in individuals with AD. Results Consistent physical exercise alters neuroinflammatory pathways, enhances cognitive functions, and bolsters brain health among AD patients. It favorably influences the activation states of microglia and astrocytes, fortifies the integrity of the blood-brain barrier, and attenuates gut inflammation associated with AD. These changes are associated with substantial improvements in cognitive performance and brain health indicators. Discussion The findings underscore the potential of integrating physical exercise into comprehensive AD management strategies. Emphasizing the necessity for further research, this review advocates for the refinement of exercise regimens to maximize their enduring benefits in decelerating the progression of AD.
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Affiliation(s)
- Junhui Hu
- School of Physical Education, West Anhui University, Lu'an, China
| | - Baiqing Huang
- School of Physical Education, Yunnan Minzu University, Kunming, China
| | - Kang Chen
- Tianjin Key Laboratory of Exercise Physiology and Sports Medicine, Tianjin University of Sport, Tianjin, China
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31
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Liu N, Haziyihan A, Zhao W, Chen Y, Chao H. Trajectory of brain-derived amyloid beta in Alzheimer's disease: where is it coming from and where is it going? Transl Neurodegener 2024; 13:42. [PMID: 39160618 PMCID: PMC11331646 DOI: 10.1186/s40035-024-00434-9] [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: 01/30/2024] [Accepted: 07/25/2024] [Indexed: 08/21/2024] Open
Abstract
Alzheimer's disease (AD) is a progressive neurological disorder that primarily impacts cognitive function. Currently there are no disease-modifying treatments to stop or slow its progression. Recent studies have found that several peripheral and systemic abnormalities are associated with AD, and our understanding of how these alterations contribute to AD is becoming more apparent. In this review, we focuse on amyloid‑beta (Aβ), a major hallmark of AD, summarizing recent findings on the source of brain-derived Aβ and discussing where and how the brain-derived Aβ is cleared in vivo. Based on these findings, we propose future strategies for AD prevention and treatment, from a novel perspective on Aβ metabolism.
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Affiliation(s)
- Ni Liu
- Zhengzhou University, Zhengzhou, 450001, China
- Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, 430074, China
| | | | - Wei Zhao
- Zhengzhou University, Zhengzhou, 450001, China
| | - Yu Chen
- Zhengzhou University, Zhengzhou, 450001, China
| | - Hongbo Chao
- Zhengzhou University, Zhengzhou, 450001, China.
- Huazhong University of Science and Technology, Wuhan, 430074, China.
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32
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Bian Y, Qiao N, Han S, Gao J, Lv X, Yuan L, Zhang L, Wei Z. Anti-Neuroinflammatory Effect of Ombuin from Rhamnus erythroxylon Pall. Leaves in LPS-Induced BV-2 Microglia by Targeting Src and Suppressing the PI3K-AKT/NF-κB Signaling Pathway. Int J Mol Sci 2024; 25:8789. [PMID: 39201475 PMCID: PMC11354356 DOI: 10.3390/ijms25168789] [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: 07/03/2024] [Revised: 07/26/2024] [Accepted: 07/29/2024] [Indexed: 09/02/2024] Open
Abstract
The leaves of Rhamnus erythroxylon Pall. are widely used as tea substitutes in northwest China for their fragrant aroma, anti-irritability, and digestion-enhancing properties. Ombuin, a main flavonoid compound found in the leaves, exhibited notable anti-inflammatory and antioxidant effects. However, its potential role in treating neuroinflammatory-related diseases remains unexplored. Thus, this study aims to evaluate the anti-neuroinflammatory effects of ombuin and to explore the underlying molecular mechanisms. According to our findings, ombuin dramatically reduced the release of interleukin-6 (IL-6), tumor necrosis factor-α (TNF-α), IL-1β, nitric oxide (NO), and reactive oxygen species (ROS) in lipopolysaccharide (LPS)-stimulated BV-2 microglia. Further analysis, including transcriptomics, network pharmacology, molecular docking, and cellular heat transfer assays, revealed that Src was a direct target of ombuin. Western blot analysis showed that ombuin effectively suppressed Src phosphorylation and inhibited the downstream expressions of p-PI3K p85, p-AKT1, p-IKKα/β, p-IκBα, and nuclear factor κB (NF-κB). Meanwhile, the repression of Src significantly reversed the anti-neuroinflammatory activity of ombuin. Our results identified Src as a direct target of ombuin and implied that ombuin exerted an anti-neuroinflammatory effect by inhibiting Src phosphorylation and suppressing the activation of the PI3K-AKT and NF-κB pathways, which might provide an alternative therapeutic strategy for neurodegenerative diseases.
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Affiliation(s)
| | | | | | | | | | | | - Linjing Zhang
- School of Life Science, Shanxi Normal University, Taiyuan 030006, China
| | - Zuofu Wei
- School of Life Science, Shanxi Normal University, Taiyuan 030006, China
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33
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Li S, Wang Z, Liu G, Chen M. Neurodegenerative diseases and catechins: (-)-epigallocatechin-3-gallate is a modulator of chronic neuroinflammation and oxidative stress. Front Nutr 2024; 11:1425839. [PMID: 39149548 PMCID: PMC11326534 DOI: 10.3389/fnut.2024.1425839] [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: 05/23/2024] [Accepted: 07/11/2024] [Indexed: 08/17/2024] Open
Abstract
Catechins, a class of phytochemicals found in various fruits and tea leaves, have garnered attention for their diverse health-promoting properties, including their potential in combating neurodegenerative diseases. Among these catechins, (-)-epigallocatechin-3-gallate (EGCG), the most abundant polyphenol in green tea, has emerged as a promising therapeutic agent due to its potent antioxidant and anti-inflammatory effects. Chronic neuroinflammation and oxidative stress are key pathological mechanisms in neurodegenerative diseases such as Alzheimer's disease (AD) and Parkinson's disease (PD). EGCG has neuroprotective efficacy due to scavenging free radicals, reducing oxidative stress and attenuating neuroinflammatory processes. This review discusses the molecular mechanisms of EGCG's anti-oxidative stress and chronic neuroinflammation, emphasizing its effects on autoimmune responses, neuroimmune system interactions, and focusing on the related effects on AD and PD. By elucidating EGCG's mechanisms of action and its impact on neurodegenerative processes, this review underscores the potential of EGCG as a therapeutic intervention for AD, PD, and possibly other neurodegenerative diseases. Overall, EGCG emerges as a promising natural compound for combating chronic neuroinflammation and oxidative stress, offering novel avenues for neuroprotective strategies in the treatment of neurodegenerative disorders.
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Affiliation(s)
- Siying Li
- Hunan Provincial Engineering Research Center of Applied Microbial Resources Development for Livestock and Poultry, College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha, China
- Department of Neurology, The Yuhuan People's Hospital, Taizhou, Zhejiang, China
| | - Zaoyi Wang
- Hunan Provincial Engineering Research Center of Applied Microbial Resources Development for Livestock and Poultry, College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha, China
| | - Gang Liu
- Hunan Provincial Engineering Research Center of Applied Microbial Resources Development for Livestock and Poultry, College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha, China
| | - Meixia Chen
- Department of Neurology, The Yuhuan People's Hospital, Taizhou, Zhejiang, China
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34
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Jia Y, Dang W, Zhang X, Mi Y, Guo T, Mu D, Zhou D, Chen G, Hou Y, Li N. Characteristic terpenylated coumarins from Ferula ferulaeoides as potential inhibitors on overactivation of microglia. Bioorg Chem 2024; 149:107484. [PMID: 38810482 DOI: 10.1016/j.bioorg.2024.107484] [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: 03/30/2024] [Revised: 05/07/2024] [Accepted: 05/20/2024] [Indexed: 05/31/2024]
Abstract
A total of 37 characteristic terpenylated coumarins (1-25), including 17 undescribed compounds (1-5, 6a/6b, 7-10, 11a/11b-13a/13b), have been isolated from the root of Ferula ferulaeoides. Meanwhile, twelve pairs of enantiomers (6a/6b, 11a/11b-15a/15b, 17a/17b, 18a/18b, 20a/20b-22a/22b, and 25a/25b) were chirally purified. The structures of these new compounds were elucidated using HRESIMS, UV, NMR, and calculated 13C NMR with a custom DP4 + analysis. The absolute configurations of all the compounds were determined for the first time using electronic circular dichroism (ECD). Then, their inhibitory effects on nitric oxide (NO) production were evaluated with LPS-induced BV-2 microglia. Compared with the positive control minocycline (IC50 = 59.3 μM), ferulaferone B (2) exhibited stronger inhibitory potency with an IC50 value of 12.4 μM. The immunofluorescence investigation indicated that ferulaferone B (2) could inhibit Iba-1 expression in LPS-stimulated BV-2 microglia.
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Affiliation(s)
- Yewen Jia
- School of Traditional Chinese Materia Medica, Key Laboratory of Innovative Traditional Chinese Medicine for Major Chronic Diseases of Liaoning Province, Key Laboratory for TCM Material Basis Study and Innovative Drug Development of Shenyang City, Shenyang Pharmaceutical University, Shenyang 110016, PR China
| | - Wen Dang
- School of Traditional Chinese Materia Medica, Key Laboratory of Innovative Traditional Chinese Medicine for Major Chronic Diseases of Liaoning Province, Key Laboratory for TCM Material Basis Study and Innovative Drug Development of Shenyang City, Shenyang Pharmaceutical University, Shenyang 110016, PR China
| | - Xueni Zhang
- School of Traditional Chinese Materia Medica, Key Laboratory of Innovative Traditional Chinese Medicine for Major Chronic Diseases of Liaoning Province, Key Laboratory for TCM Material Basis Study and Innovative Drug Development of Shenyang City, Shenyang Pharmaceutical University, Shenyang 110016, PR China
| | - Yan Mi
- Key Laboratory of Bioresource Research and Development of Liaoning Province, College of Life and Health Sciences, Northeastern University, Shenyang 110016, PR China; National Frontiers Science Center for Industrial Intelligence and Systems Optimization, Key Laboratory of Data Analytics and Optimization for Smart Industry, Ministry of Education, Northeastern University, Shenyang 110016, PR China
| | - Tingting Guo
- School of Traditional Chinese Materia Medica, Key Laboratory of Innovative Traditional Chinese Medicine for Major Chronic Diseases of Liaoning Province, Key Laboratory for TCM Material Basis Study and Innovative Drug Development of Shenyang City, Shenyang Pharmaceutical University, Shenyang 110016, PR China
| | - Danyang Mu
- Key Laboratory of Bioresource Research and Development of Liaoning Province, College of Life and Health Sciences, Northeastern University, Shenyang 110016, PR China; National Frontiers Science Center for Industrial Intelligence and Systems Optimization, Key Laboratory of Data Analytics and Optimization for Smart Industry, Ministry of Education, Northeastern University, Shenyang 110016, PR China
| | - Di Zhou
- School of Traditional Chinese Materia Medica, Key Laboratory of Innovative Traditional Chinese Medicine for Major Chronic Diseases of Liaoning Province, Key Laboratory for TCM Material Basis Study and Innovative Drug Development of Shenyang City, Shenyang Pharmaceutical University, Shenyang 110016, PR China
| | - Gang Chen
- School of Traditional Chinese Materia Medica, Key Laboratory of Innovative Traditional Chinese Medicine for Major Chronic Diseases of Liaoning Province, Key Laboratory for TCM Material Basis Study and Innovative Drug Development of Shenyang City, Shenyang Pharmaceutical University, Shenyang 110016, PR China
| | - Yue Hou
- Key Laboratory of Bioresource Research and Development of Liaoning Province, College of Life and Health Sciences, Northeastern University, Shenyang 110016, PR China; National Frontiers Science Center for Industrial Intelligence and Systems Optimization, Key Laboratory of Data Analytics and Optimization for Smart Industry, Ministry of Education, Northeastern University, Shenyang 110016, PR China.
| | - Ning Li
- School of Traditional Chinese Materia Medica, Key Laboratory of Innovative Traditional Chinese Medicine for Major Chronic Diseases of Liaoning Province, Key Laboratory for TCM Material Basis Study and Innovative Drug Development of Shenyang City, Shenyang Pharmaceutical University, Shenyang 110016, PR China.
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35
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You M, Chen N, Yang Y, Cheng L, He H, Cai Y, Liu Y, Liu H, Hong G. The gut microbiota-brain axis in neurological disorders. MedComm (Beijing) 2024; 5:e656. [PMID: 39036341 PMCID: PMC11260174 DOI: 10.1002/mco2.656] [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: 07/24/2023] [Revised: 06/15/2024] [Accepted: 06/17/2024] [Indexed: 07/23/2024] Open
Abstract
Previous studies have shown a bidirectional communication between human gut microbiota and the brain, known as the microbiota-gut-brain axis (MGBA). The MGBA influences the host's nervous system development, emotional regulation, and cognitive function through neurotransmitters, immune modulation, and metabolic pathways. Factors like diet, lifestyle, genetics, and environment shape the gut microbiota composition together. Most research have explored how gut microbiota regulates host physiology and its potential in preventing and treating neurological disorders. However, the individual heterogeneity of gut microbiota, strains playing a dominant role in neurological diseases, and the interactions of these microbial metabolites with the central/peripheral nervous systems still need exploration. This review summarizes the potential role of gut microbiota in driving neurodevelopmental disorders (autism spectrum disorder and attention deficit/hyperactivity disorder), neurodegenerative diseases (Alzheimer's and Parkinson's disease), and mood disorders (anxiety and depression) in recent years and discusses the current clinical and preclinical gut microbe-based interventions, including dietary intervention, probiotics, prebiotics, and fecal microbiota transplantation. It also puts forward the current insufficient research on gut microbiota in neurological disorders and provides a framework for further research on neurological disorders.
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Affiliation(s)
- Mingming You
- Xiamen Key Laboratory of Genetic TestingThe Department of Laboratory MedicineThe First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen UniversityXiamenChina
| | - Nan Chen
- Master of Public HealthSchool of Public HealthXiamen UniversityXiamenChina
| | - Yuanyuan Yang
- Xiamen Key Laboratory of Genetic TestingThe Department of Laboratory MedicineThe First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen UniversityXiamenChina
| | - Lingjun Cheng
- Xiamen Key Laboratory of Genetic TestingThe Department of Laboratory MedicineThe First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen UniversityXiamenChina
| | - Hongzhang He
- Xiamen Key Laboratory of Genetic TestingThe Department of Laboratory MedicineThe First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen UniversityXiamenChina
| | - Yanhua Cai
- Master of Public HealthSchool of Public HealthXiamen UniversityXiamenChina
| | - Yating Liu
- Xiamen Key Laboratory of Genetic TestingThe Department of Laboratory MedicineThe First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen UniversityXiamenChina
| | - Haiyue Liu
- Xiamen Key Laboratory of Genetic TestingThe Department of Laboratory MedicineThe First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen UniversityXiamenChina
| | - Guolin Hong
- Xiamen Key Laboratory of Genetic TestingThe Department of Laboratory MedicineThe First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen UniversityXiamenChina
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Shang G, Shao Q, Lv K, Xu W, Ji J, Fan S, Kang X, Cheng F, Wang X, Wang Q. Hypercholesterolemia and the Increased Risk of Vascular Dementia: a Cholesterol Perspective. Curr Atheroscler Rep 2024; 26:435-449. [PMID: 38814418 DOI: 10.1007/s11883-024-01217-3] [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] [Accepted: 05/17/2024] [Indexed: 05/31/2024]
Abstract
PURPOSE OF REVIEW Vascular dementia (VaD) is the second most prevalent type of dementia after Alzheimer's disease.Hypercholesterolemia may increase the risk of dementia, but the association between cholesterol and cognitive function is very complex. From the perspective of peripheral and brain cholesterol, we review the relationship between hypercholesterolemia and increased risk of VaD and how the use of lipid-lowering therapies affects cognition. RECENT FINDINGS Epidemiologic studies show since 1980, non-HDL-C levels of individuals has increased rapidly in Asian countries.The study has suggested that vascular risk factors increase the risk of VaD, such as disordered lipid metabolism. Dyslipidemia has been found to interact with chronic cerebral hypoperfusion to promote inflammation resulting in cognitive dysfunction in the brain.Hypercholesterolemia may be a risk factor for VaD. Inflammation could potentially serve as a link between hypercholesterolemia and VaD. Additionally, the potential impact of lipid-lowering therapy on cognitive function is also worth considering. Finding strategies to prevent and treat VaD is critical given the aging of the population to lessen the load on society. Currently, controlling underlying vascular risk factors is considered one of the most effective methods of preventing VaD. Understanding the relationship between abnormal cholesterol levels and VaD, as well as discovering potential serum biomarkers, is important for the early prevention and treatment of VaD.
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Affiliation(s)
- Guojiao Shang
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, No.11 East Beisanhuan Road, Chaoyang District, Beijing, China
| | - Qi Shao
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, No.11 East Beisanhuan Road, Chaoyang District, Beijing, China
| | - Kai Lv
- Department of Geratology, The Third Affiliated Hospital of Beijing University of Traditional Chinese Medicine, No.51 Xiaoguan Street, Andingmenwai, Chaoyang District, Beijing, China
| | - Wenxiu Xu
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, No.11 East Beisanhuan Road, Chaoyang District, Beijing, China
| | - Jing Ji
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, No.11 East Beisanhuan Road, Chaoyang District, Beijing, China
| | - Shuning Fan
- Dongzhimen Hospital of Beijing University of Chinese Medicine, No.5 Haiyuncang, Dongcheng District, Beijing, China
| | - Xiangdong Kang
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, No.11 East Beisanhuan Road, Chaoyang District, Beijing, China
| | - Fafeng Cheng
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, No.11 East Beisanhuan Road, Chaoyang District, Beijing, China.
| | - Xueqian Wang
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, No.11 East Beisanhuan Road, Chaoyang District, Beijing, China.
| | - Qingguo Wang
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, No.11 East Beisanhuan Road, Chaoyang District, Beijing, China.
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Zhou Y, Zhang Y, Jin S, Lv J, Li M, Feng N. The gut microbiota derived metabolite trimethylamine N-oxide: Its important role in cancer and other diseases. Biomed Pharmacother 2024; 177:117031. [PMID: 38925016 DOI: 10.1016/j.biopha.2024.117031] [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: 04/26/2024] [Revised: 06/21/2024] [Accepted: 06/21/2024] [Indexed: 06/28/2024] Open
Abstract
An expanding body of research indicates a correlation between the gut microbiota and various diseases. Metabolites produced by the gut microbiota act as mediators between the gut microbiota and the host, interacting with multiple systems in the human body to regulate physiological or pathological functions. However, further investigation is still required to elucidate the underlying mechanisms. One such metabolite involved in choline metabolism by gut microbes is trimethylamine (TMA), which can traverse the intestinal epithelial barrier and enter the bloodstream, ultimately reaching the liver where it undergoes oxidation catalyzed by flavin-containing monooxygenase 3 (FMO3) to form trimethylamine N-oxide (TMAO). While some TMAO is eliminated through renal excretion, remaining amounts circulate in the bloodstream, leading to systemic inflammation, endoplasmic reticulum (ER) stress, mitochondrial stress, and disruption of normal physiological functions in humans. As a representative microbial metabolite originating from the gut, TMAO has significant potential both as a biomarker for monitoring disease occurrence and progression and for tailoring personalized treatment strategies for patients. This review provides an extensive overview of TMAO sources and its metabolism in human blood, as well as its impact on several major human diseases. Additionally, we explore the latest research areas related to TMAO along with future directions.
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Affiliation(s)
- Yuhua Zhou
- Wuxi School of Medicine, Jiangnan University, Wuxi, China
| | - Yuwei Zhang
- Nantong University Medical School, Nantong, China
| | - Shengkai Jin
- Wuxi School of Medicine, Jiangnan University, Wuxi, China
| | - Jing Lv
- Wuxi School of Medicine, Jiangnan University, Wuxi, China
| | - Menglu Li
- Department of Urology, Jiangnan University Medical Center, Wuxi, China.
| | - Ninghan Feng
- Wuxi School of Medicine, Jiangnan University, Wuxi, China; Nantong University Medical School, Nantong, China; Department of Urology, Jiangnan University Medical Center, Wuxi, China.
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Soraci L, Corsonello A, Paparazzo E, Montesanto A, Piacenza F, Olivieri F, Gambuzza ME, Savedra EV, Marino S, Lattanzio F, Biscetti L. Neuroinflammaging: A Tight Line Between Normal Aging and Age-Related Neurodegenerative Disorders. Aging Dis 2024; 15:1726-1747. [PMID: 38300639 PMCID: PMC11272206 DOI: 10.14336/ad.2023.1001] [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: 08/12/2023] [Accepted: 10/01/2023] [Indexed: 02/02/2024] Open
Abstract
Aging in the healthy brain is characterized by a low-grade, chronic, and sterile inflammatory process known as neuroinflammaging. This condition, mainly consisting in an up-regulation of the inflammatory response at the brain level, contributes to the pathogenesis of age-related neurodegenerative disorders. Development of this proinflammatory state involves the interaction between genetic and environmental factors, able to induce age-related epigenetic modifications. Indeed, the exposure to environmental compounds, drugs, and infections, can contribute to epigenetic modifications of DNA methylome, histone fold proteins, and nucleosome positioning, leading to epigenetic modulation of neuroinflammatory responses. Furthermore, some epigenetic modifiers, which combine and interact during the life course, can contribute to modeling of epigenome dynamics to sustain, or dampen the neuroinflammatory phenotype. The aim of this review is to summarize current knowledge about neuroinflammaging with a particular focus on epigenetic mechanisms underlying the onset and progression of neuroinflammatory cascades in the central nervous system; furthermore, we describe some diagnostic biomarkers that may contribute to increase diagnostic accuracy and help tailor therapeutic strategies in patients with neurodegenerative diseases.
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Affiliation(s)
- Luca Soraci
- Unit of Geriatric Medicine, Italian National Research Center of Aging (IRCCS INRCA), Cosenza, Italy.
| | - Andrea Corsonello
- Unit of Geriatric Medicine, Italian National Research Center of Aging (IRCCS INRCA), Cosenza, Italy.
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, Rende, Italy.
| | - Ersilia Paparazzo
- Department of Biology, Ecology and Earth Sciences, University of Calabria, Rende, Italy.
| | - Alberto Montesanto
- Department of Biology, Ecology and Earth Sciences, University of Calabria, Rende, Italy.
| | - Francesco Piacenza
- Advanced Technology Center for Aging Research, Italian National Research Center of Aging (IRCCS INRCA), IRCCS INRCA, Ancona, Italy.
| | - Fabiola Olivieri
- Department of Clinical and Molecular Sciences, Università Politecnica delle Marche, Ancona, Italy.
- Clinic of Laboratory and Precision Medicine, Italian National Research Center of Aging (IRCCS INRCA), Ancona, Italy.
| | | | | | - Silvia Marino
- IRCCS Centro Neurolesi "Bonino-Pulejo”, Messina, Italy.
| | | | - Leonardo Biscetti
- Section of Neurology, Italian National Research Center on Aging (IRCCS INRCA), Ancona, Italy.
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Hernández-Contreras KA, Martínez-Díaz JA, Hernández-Aguilar ME, Herrera-Covarrubias D, Rojas-Durán F, Chi-Castañeda LD, García-Hernández LI, Aranda-Abreu GE. Alterations of mRNAs and Non-coding RNAs Associated with Neuroinflammation in Alzheimer's Disease. Mol Neurobiol 2024; 61:5826-5840. [PMID: 38236345 DOI: 10.1007/s12035-023-03908-5] [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: 04/12/2023] [Accepted: 12/27/2023] [Indexed: 01/19/2024]
Abstract
Alzheimer's disease is a neurodegenerative pathology whose pathognomonic hallmarks are increased generation of β-amyloid (Aβ) peptide, production of hyperphosphorylated (pTau), and neuroinflammation. The last is an alteration closely related to the progression of AD and although it is present in multiple neurodegenerative diseases, the pathophysiological events that characterize neuroinflammatory processes vary depending on the disease. In this article, we focus on mRNA and non-coding RNA alterations as part of the pathophysiological events characteristic of neuroinflammation in AD and the influence of these alterations on the course of the disease through interaction with multiple RNAs related to the generation of Aβ, pTau, and neuroinflammation itself.
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Affiliation(s)
- Karla Aketzalli Hernández-Contreras
- Doctorado en Investigaciones Cerebrales/Universidad Veracruzana, Av. Luis Castelazo Ayala S/N, Carr. Xalapa-Veracruz, Km 3.5, C.P. 91190, Xalapa, Veracruz, México
| | - Jorge Antonio Martínez-Díaz
- Instituto de Investigaciones Cerebrales/Universidad Veracruzana, Av. Luis Castelazo Ayala S/N, Carr. Xalapa-Veracruz, Km 3.5, C.P. 91190, Xalapa, Veracruz, México
| | - María Elena Hernández-Aguilar
- Instituto de Investigaciones Cerebrales/Universidad Veracruzana, Av. Luis Castelazo Ayala S/N, Carr. Xalapa-Veracruz, Km 3.5, C.P. 91190, Xalapa, Veracruz, México
| | - Deissy Herrera-Covarrubias
- Instituto de Investigaciones Cerebrales/Universidad Veracruzana, Av. Luis Castelazo Ayala S/N, Carr. Xalapa-Veracruz, Km 3.5, C.P. 91190, Xalapa, Veracruz, México
| | - Fausto Rojas-Durán
- Instituto de Investigaciones Cerebrales/Universidad Veracruzana, Av. Luis Castelazo Ayala S/N, Carr. Xalapa-Veracruz, Km 3.5, C.P. 91190, Xalapa, Veracruz, México
| | - Lizbeth Donají Chi-Castañeda
- Instituto de Investigaciones Cerebrales/Universidad Veracruzana, Av. Luis Castelazo Ayala S/N, Carr. Xalapa-Veracruz, Km 3.5, C.P. 91190, Xalapa, Veracruz, México
| | - Luis Isauro García-Hernández
- Instituto de Investigaciones Cerebrales/Universidad Veracruzana, Av. Luis Castelazo Ayala S/N, Carr. Xalapa-Veracruz, Km 3.5, C.P. 91190, Xalapa, Veracruz, México
| | - Gonzalo Emiliano Aranda-Abreu
- Instituto de Investigaciones Cerebrales/Universidad Veracruzana, Av. Luis Castelazo Ayala S/N, Carr. Xalapa-Veracruz, Km 3.5, C.P. 91190, Xalapa, Veracruz, México.
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40
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Deng Q, Wu C, Parker E, Liu TCY, Duan R, Yang L. Microglia and Astrocytes in Alzheimer's Disease: Significance and Summary of Recent Advances. Aging Dis 2024; 15:1537-1564. [PMID: 37815901 PMCID: PMC11272214 DOI: 10.14336/ad.2023.0907] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Accepted: 09/07/2023] [Indexed: 10/12/2023] Open
Abstract
Alzheimer's disease, one of the most common forms of dementia, is characterized by a slow progression of cognitive impairment and neuronal loss. Currently, approved treatments for AD are hindered by various side effects and limited efficacy. Despite considerable research, practical treatments for AD have not been developed. Increasing evidence shows that glial cells, especially microglia and astrocytes, are essential in the initiation and progression of AD. During AD progression, activated resident microglia increases the ability of resting astrocytes to transform into reactive astrocytes, promoting neurodegeneration. Extensive clinical and molecular studies show the involvement of microglia and astrocyte-mediated neuroinflammation in AD pathology, indicating that microglia and astrocytes may be potential therapeutic targets for AD. This review will summarize the significant and recent advances of microglia and astrocytes in the pathogenesis of AD in three parts. First, we will review the typical pathological changes of AD and discuss microglia and astrocytes in terms of function and phenotypic changes. Second, we will describe microglia and astrocytes' physiological and pathological role in AD. These roles include the inflammatory response, "eat me" and "don't eat me" signals, Aβ seeding, propagation, clearance, synapse loss, synaptic pruning, remyelination, and demyelination. Last, we will review the pharmacological and non-pharmacological therapies targeting microglia and astrocytes in AD. We conclude that microglia and astrocytes are essential in the initiation and development of AD. Therefore, understanding the new role of microglia and astrocytes in AD progression is critical for future AD studies and clinical trials. Moreover, pharmacological, and non-pharmacological therapies targeting microglia and astrocytes, with specific studies investigating microglia and astrocyte-mediated neuronal damage and repair, may be a promising research direction for future studies regarding AD treatment and prevention.
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Affiliation(s)
- Qianting Deng
- Laboratory of Exercise and Neurobiology, School of Physical Education and Sports Science, South China Normal University, Guangzhou 510006, China.
| | - Chongyun Wu
- Laboratory of Exercise and Neurobiology, School of Physical Education and Sports Science, South China Normal University, Guangzhou 510006, China.
- Laboratory of Regenerative Medicine in Sports Science, School of Physical Education and Sports Science, South China Normal University, Guangzhou 510006, China.
| | - Emily Parker
- Medical College of Georgia at Augusta University, Augusta, GA 30912, USA.
| | - Timon Cheng-Yi Liu
- Laboratory of Laser Sports Medicine, School of Physical Education and Sports Science, South China Normal University, Guangzhou 510006, China.
| | - Rui Duan
- Laboratory of Regenerative Medicine in Sports Science, School of Physical Education and Sports Science, South China Normal University, Guangzhou 510006, China.
| | - Luodan Yang
- Laboratory of Exercise and Neurobiology, School of Physical Education and Sports Science, South China Normal University, Guangzhou 510006, China.
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Liu XH, Liu XT, Wu Y, Li SA, Ren KD, Cheng M, Huang B, Yang Y, Liu PP. Broadening Horizons: Exploring the Cathepsin Family as Therapeutic Targets for Alzheimer's Disease. Aging Dis 2024:AD.2024.0456. [PMID: 39122455 DOI: 10.14336/ad.2024.0456] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2024] [Accepted: 06/02/2024] [Indexed: 08/12/2024] Open
Abstract
Alzheimer's disease (AD) is an intricate neurodegenerative disorder characterized by the accumulation of misfolded proteins, including beta-amyloid (Aβ) and tau, leading to cognitive decline. Despite decades of research, the precise mechanisms underlying its onset and progression remain elusive. Cathepsins are a family of lysosomal enzymes that play vital roles in cellular processes, including protein degradation and regulation of immune responses. Emerging evidence suggests that cathepsins may be involved in AD pathogenesis. Cathepsins can influence the activation of microglia and astrocytes, the resident immune cells in the brain. However, cathepsin dysfunction may lead to the accumulation of misfolded proteins, notably Aβ and tau. In addition, dysregulated cathepsin activity may induce an exaggerated immune response, promoting chronic inflammation and neuronal dysfunction in patients with AD. By unraveling the classification, functions, and roles of cathepsins in AD's pathogenesis, this review sheds light on their intricate involvement in this devastating disease. Targeting cathepsin activity could be a promising and novel approach for mitigating the pathological processes that contribute to AD, providing new avenues for its treatment and prevention.
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Affiliation(s)
- Xiao-Hui Liu
- Clinical Systems Biology Laboratories, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
- Department of Neurology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
- The Academy of Medical Sciences, Zhengzhou University, Zhengzhou, Henan, China
| | - Xiao-Tong Liu
- Clinical Laboratory, the First Hospital of Yongnian District, Yongnian, Hebei, China
| | - Yue Wu
- Clinical Systems Biology Laboratories, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
- Department of Neurology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
- The Academy of Medical Sciences, Zhengzhou University, Zhengzhou, Henan, China
| | - Shu-Ang Li
- Clinical Systems Biology Laboratories, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
- Department of Neurology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Kai-Di Ren
- Department of Pharmacy, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Meng Cheng
- Translational Medical Center, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Bing Huang
- Brain Function and Disease Laboratory, Shantou University Medical College, Shantou, China
| | - Yang Yang
- Clinical Systems Biology Laboratories, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
- Department of Neurology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Pei-Pei Liu
- Clinical Systems Biology Laboratories, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
- Department of Neurology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
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Wu X, Liu M, Zhang X, Pan X, Cui X, Jin J, Sun H, Xiao C, Tong X, Ren L, Wang Y, Cao X. Elucidating Microglial Heterogeneity and Functions in Alzheimer's Disease Using Single-cell Analysis and Convolutional Neural Network Disease Model Construction. Sci Rep 2024; 14:17271. [PMID: 39068182 PMCID: PMC11283484 DOI: 10.1038/s41598-024-67537-1] [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: 01/02/2024] [Accepted: 07/12/2024] [Indexed: 07/30/2024] Open
Abstract
In this study, we conducted an in-depth exploration of Alzheimer's Disease (AD) by integrating state-of-the-art methodologies, including single-cell RNA sequencing (scRNA-seq), weighted gene co-expression network analysis (WGCNA), and a convolutional neural network (CNN) model. Focusing on the pivotal role of microglia in AD pathology, our analysis revealed 11 distinct microglial subclusters, with 4 exhibiting obviously alterations in AD and HC groups. The investigation of cell-cell communication networks unveiled intricate interactions between AD-related microglia and various cell types within the central nervous system (CNS). Integration of WGCNA and scRNA-seq facilitated the identification of critical genes associated with AD-related microglia, providing insights into their involvement in processes such as peptide chain elongation, synapse-related functions, and cell adhesion. The identification of 9 hub genes, including USP3, through the least absolute shrinkage and selection operator (LASSO) and COX regression analyses, presents potential therapeutic targets. Furthermore, the development of a CNN-based model showcases the application of deep learning in enhancing diagnostic accuracy for AD. Overall, our findings significantly contribute to unraveling the molecular intricacies of microglial responses in AD, offering promising avenues for targeted therapeutic interventions and improved diagnostic precision.
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Affiliation(s)
- Xinyi Wu
- Department of Anesthesiology, The First Hospital of China Medical University, 155 Nanjing North Street, Shenyang, 110001, China
| | - Mingyu Liu
- Department of Vascular and Thyroid Surgery, The First Hospital of China Medical University, Shenyang, China
| | - Xinyue Zhang
- Department of Anesthesiology, The First Hospital of China Medical University, 155 Nanjing North Street, Shenyang, 110001, China
| | - Xue Pan
- Department of Anesthesiology, The First Hospital of China Medical University, 155 Nanjing North Street, Shenyang, 110001, China
| | - Xiaotong Cui
- Department of Anesthesiology, The First Hospital of China Medical University, 155 Nanjing North Street, Shenyang, 110001, China
| | - Jiahui Jin
- Department of Anesthesiology, The First Hospital of China Medical University, 155 Nanjing North Street, Shenyang, 110001, China
| | - Huanan Sun
- Department of Anesthesiology, The First Hospital of China Medical University, 155 Nanjing North Street, Shenyang, 110001, China
| | - Chuyu Xiao
- Department of Anesthesiology, The First Hospital of China Medical University, 155 Nanjing North Street, Shenyang, 110001, China
| | - Xiangyi Tong
- Department of Anesthesiology, The First Hospital of China Medical University, 155 Nanjing North Street, Shenyang, 110001, China
| | - Liou Ren
- Department of Anesthesiology, The First Hospital of China Medical University, 155 Nanjing North Street, Shenyang, 110001, China
| | - Yaxuan Wang
- Department of Anesthesiology, The First Hospital of China Medical University, 155 Nanjing North Street, Shenyang, 110001, China
| | - Xuezhao Cao
- Department of Anesthesiology, The First Hospital of China Medical University, 155 Nanjing North Street, Shenyang, 110001, China.
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Rabl M, Zullo L, Lewczuk P, Kornhuber J, Karikari TK, Blennow K, Zetterberg H, Bavato F, Quednow BB, Seifritz E, von Gunten A, Clark C, Popp J. Plasma neurofilament light, glial fibrillary acid protein, and phosphorylated tau 181 as biomarkers for neuropsychiatric symptoms and related clinical disease progression. Alzheimers Res Ther 2024; 16:165. [PMID: 39054505 PMCID: PMC11270946 DOI: 10.1186/s13195-024-01526-4] [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: 03/17/2024] [Accepted: 07/09/2024] [Indexed: 07/27/2024]
Abstract
BACKGROUND Neuropsychiatric symptoms (NPS) are common in older people, may occur early in the development of dementia disorders, and have been associated with faster cognitive decline. Here, our objectives were to investigate whether plasma levels of neurofilament light chain (NfL), glial fibrillary acid protein (GFAP), and tau phosphorylated at threonine 181 (pTau181) are associated with current NPS and predict future NPS in non-demented older people. Furthermore, we tested whether the presence of NPS combined with plasma biomarkers are useful to predict Alzheimer's disease (AD) pathology and cognitive decline. METHODS One hundred and fifty-one participants with normal cognition (n = 76) or mild cognitive impairment (n = 75) were examined in a longitudinal brain aging study at the Memory Centers, University Hospital of Lausanne, Switzerland. Plasma levels of NfL, GFAP, and pTau181 along with CSF biomarkers of AD pathology were measured at baseline. NPS were assessed through the Neuropsychiatric Inventory Questionnaire (NPI-Q), along with the cognitive and functional performance at baseline and follow-up (mean: 20 months). Different regression and ROC analyses were used to address the associations of interest. RESULTS None of the three plasma biomarker was associated with NPS at baseline. Higher GFAP levels were associated with the presence of NPS at follow-up (OR = 2.8, p = .002) and both, higher NfL and higher GFAP with an increase in the NPI-Q severity score over time (β = 0.25, p = .034 and β = 0.30, p = .013, respectively). Adding NPS and the plasma biomarkers to a reference model improved the prediction of future NPS (AUC 0.72 to 0.88, p = .002) and AD pathology (AUC 0.78 to 0.87, p = .010), but not of cognitive decline (AUC 0.79 to 0.85, p = .081). CONCLUSION Plasma NfL and GFAP are both associated with future NPS and NPS severity change. Considering the presence of NPS along with blood-based AD-biomarkers may improve the prediction of clinical progression of NPS over time and inform clinical decision-making in non-demented older people.
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Affiliation(s)
- Miriam Rabl
- Department of Adult Psychiatry and Psychotherapy, University Hospital of Psychiatry Zurich, University of Zurich, Lenggstrasse 31, Zurich, 8032, Switzerland.
| | - Leonardo Zullo
- Old-Age Psychiatry Service, Department of Psychiatry, Lausanne University Hospital, Lausanne, 1005, Switzerland
- Leenaards Memory Clinic, Lausanne University Hospital, Lausanne, 1005, Switzerland
| | - Piotr Lewczuk
- Department of Psychiatry and Psychotherapy, Universitätsklinikum Erlangen and Friedrich-Alexander Universität Erlangen-Nürnberg, 91054, Erlangen, Germany
- Department of Neurodegeneration Diagnostics, Medical University of Białystok, Białystok, 15-269, Poland
| | - Johannes Kornhuber
- Department of Psychiatry and Psychotherapy, Universitätsklinikum Erlangen and Friedrich-Alexander Universität Erlangen-Nürnberg, 91054, Erlangen, Germany
| | - Thomas K Karikari
- Department of Psychiatry and Neurochemistry, Institute of Neuroscience & Physiology, Sahlgrenska Academy, University of Gothenburg, Mölndal, 431 41, Sweden
- Clinical Neurochemistry Laboratory, Sahlgrenska University Hospital, Mölndal, 431 41, Sweden
- Department of Psychiatry, School of Medicine, University of Pittsburgh, Pittsburgh, PA, 15219, USA
| | - Kaj Blennow
- Department of Psychiatry and Neurochemistry, Institute of Neuroscience & Physiology, Sahlgrenska Academy, University of Gothenburg, Mölndal, 431 41, Sweden
- Clinical Neurochemistry Laboratory, Sahlgrenska University Hospital, Mölndal, 431 41, Sweden
- Paris Brain Institute, ICM, Pitié-Salpêtrière Hospital, Sorbonne University, Paris, France
- Neurodegenerative Disorder Research Center, Division of Life Sciences and Medicine, Department of Neurology, Institute on Aging and Brain Disorders, University of Science and Technology of China and First Affiliated Hospital of USTC, Hefei, P.R. China
| | - Henrik Zetterberg
- Department of Psychiatry and Neurochemistry, Institute of Neuroscience & Physiology, Sahlgrenska Academy, University of Gothenburg, Mölndal, 431 41, Sweden
- Clinical Neurochemistry Laboratory, Sahlgrenska University Hospital, Mölndal, 431 41, Sweden
- Department of Neurodegenerative Disease, UCL Institute of Neurology, London, WC1E 6BT, UK
- UK Dementia Research Institute at University College London, London, W1T 7NF, UK
- Hong Kong Center for Neurodegenerative Diseases, Clear Water Bay, Hong Kong, 999077, China
- Wisconsin Alzheimer's Disease Research Center, School of Medicine and Public Health, University of Wisconsin, University of Wisconsin-Madison, Madison, WI, 53792, USA
| | - Francesco Bavato
- Department of Adult Psychiatry and Psychotherapy, University Hospital of Psychiatry Zurich, University of Zurich, Lenggstrasse 31, Zurich, 8032, Switzerland
- Experimental and Clinical Pharmacopsychology, Department of Adult Psychiatry and Psychotherapy, University Hospital of Psychiatry Zurich, University of Zurich, Zurich, 8032, Switzerland
| | - Boris B Quednow
- Experimental and Clinical Pharmacopsychology, Department of Adult Psychiatry and Psychotherapy, University Hospital of Psychiatry Zurich, University of Zurich, Zurich, 8032, Switzerland
- Neuroscience Center Zurich, University of Zurich and Swiss Federal Institute of Technology Zurich, Zurich, 8057, Switzerland
| | - Erich Seifritz
- Department of Adult Psychiatry and Psychotherapy, University Hospital of Psychiatry Zurich, University of Zurich, Lenggstrasse 31, Zurich, 8032, Switzerland
| | - Armin von Gunten
- Old-Age Psychiatry Service, Department of Psychiatry, Lausanne University Hospital, Lausanne, 1005, Switzerland
| | - Christopher Clark
- Department of Adult Psychiatry and Psychotherapy, University Hospital of Psychiatry Zurich, University of Zurich, Lenggstrasse 31, Zurich, 8032, Switzerland
| | - Julius Popp
- Department of Adult Psychiatry and Psychotherapy, University Hospital of Psychiatry Zurich, University of Zurich, Lenggstrasse 31, Zurich, 8032, Switzerland
- Old-Age Psychiatry Service, Department of Psychiatry, Lausanne University Hospital, Lausanne, 1005, Switzerland
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Hou J, Wang X, Zhang J, Shen Z, Li X, Yang Y. Chuanxiong Renshen Decoction Inhibits Alzheimer's Disease Neuroinflammation by Regulating PPARγ/NF-κB Pathway. Drug Des Devel Ther 2024; 18:3209-3232. [PMID: 39071817 PMCID: PMC11283787 DOI: 10.2147/dddt.s462266] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2024] [Accepted: 07/12/2024] [Indexed: 07/30/2024] Open
Abstract
Background and Aim Previous studies of our research group have shown that Chuanxiong Renshen Decoction (CRD) has the effect of treating AD, but the exact mechanism of its effect is still not clarified. The aim of this study was to investigate the effect and mechanism of CRD on AD neuroinflammation. Materials and Methods Morris Water Maze (MWM) tests were employed to assess the memory and learning capacity of AD mice. HE and Nissl staining were used to observe the neural cells of mice. The expression of Iba-1 and CD86 were detected by immunohistochemical staining. Utilize UHPLC-MS/MS metabolomics techniques and the KEGG to analyze the metabolic pathways of CRD against AD. Lipopolysaccharide (LPS) induced BV2 microglia cells to construct a neuroinflammatory model. The expression of Iba-1 and CD86 were detected by immunofluorescence and flow cytometry. The contents of TNF-α and IL-1β were detected by ELISA. Western blot assay was used to detect the expression of PPARγ, p-NF-κB p65, NF-κB p65 proteins and inflammatory cytokines iNOS and COX-2 in PPARγ/NF-κB pathway with and without PPARγ inhibitor GW9662. Results CRD ameliorated the learning and memory ability of 3×Tg-AD mice, repaired the damaged nerve cells in the hippocampus, reduced the area of Iba-1 and CD86 positive areas in both the hippocampus and cortex regions, as well as attenuated serum levels of IL-1β and TNF-α in mice. CRD-containing serum significantly decreased the expression level of Iba-1, significantly reduced the levels of TNF-α and IL-1β, significantly increased the protein expression of PPARγ, and significantly decreased the proteins expression of iNOS, COX-2 and p-NF-κB p65 in BV2 microglia cells. After addition of PPARγ inhibitor GW9662, the inhibitory effect of CRD-containing serum on NF-κB activation was significantly weakened. Conclusion CRD can activate PPARγ, regulating PPARγ/NF-κB signaling pathway, inhibiting microglia over-activation and reducing AD neuroinflammation.
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Affiliation(s)
- Jinling Hou
- School of Pharmacy, Hangzhou Medical College, Hangzhou, People’s Republic of China
| | - Xiaoyan Wang
- School of Pharmacy, Hangzhou Medical College, Hangzhou, People’s Republic of China
| | - Jian Zhang
- School of Pharmacy, Hangzhou Medical College, Hangzhou, People’s Republic of China
| | - Zhuojun Shen
- School of Pharmacy, Hangzhou Medical College, Hangzhou, People’s Republic of China
| | - Xiang Li
- School of Basic Medical Sciences and Forensic Medicine, Hangzhou Medical College, Hangzhou, People’s Republic of China
| | - Yuanxiao Yang
- School of Basic Medical Sciences and Forensic Medicine, Hangzhou Medical College, Hangzhou, People’s Republic of China
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Demetriou A, Lindqvist B, Ali HG, Shamekh MM, Maioli S, Inzunza J, Varshney M, Nilsson P, Nalvarte I. ERβ mediates sex-specific protection in the App-NL-G-F mouse model of Alzheimer's disease. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.07.22.604543. [PMID: 39091856 PMCID: PMC11291054 DOI: 10.1101/2024.07.22.604543] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/04/2024]
Abstract
Menopausal loss of neuroprotective estrogen is thought to contribute to the sex differences in Alzheimer's disease (AD). Activation of estrogen receptor beta (ERβ) can be clinically relevant since it avoids the negative systemic effects of ERα activation. However, very few studies have explored ERβ-mediated neuroprotection in AD, and no information on its contribution to the sex differences in AD exists. In the present study we specifically explored the role of ERβ in mediating sex-specific protection against AD pathology in the clinically relevant App NL-G-F knock-in mouse model of amyloidosis, and if surgical menopause (ovariectomy) modulates pathology in this model. We treated male and female App NL-G-F mice with the selective ERβ agonist LY500307 and subset of the females was ovariectomized prior to treatment. Memory performance was assessed and a battery of biochemical assays were used to evaluate amyloid pathology and neuroinflammation. Primary microglial cultures from male and female wild-type and ERβ-knockout mice were used to assess ERβ's effect on microglial activation and phagocytosis. We find that ERβ activation protects against amyloid pathology and cognitive decline in male and female App NL-G-F mice. Ovariectomy increased soluble amyloid beta (Aβ) in cortex and insoluble Aβ in hippocampus, but had otherwise limited effects on pathology. We further identify that ERβ does not alter APP processing, but rather exerts its protection through amyloid scavenging that at least in part is mediated via microglia in a sex-specific manner. Combined, we provide new understanding to the sex differences in AD by demonstrating that ERβ protects against AD pathology differently in males and females, warranting reassessment of ERβ in combating AD.
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Affiliation(s)
- Aphrodite Demetriou
- Department of Neurobiology, Care Sciences and Society, Division of Neurogeriatrics, Karolinska Institutet, 171 77 Stockholm, Sweden
- Department of Biosciences and Nutrition, Karolinska Institutet, 141 57 Huddinge, Sweden
| | - Birgitta Lindqvist
- Department of Biosciences and Nutrition, Karolinska Institutet, 141 57 Huddinge, Sweden
| | - Heba G. Ali
- Department of Neurobiology, Care Sciences and Society, Division of Neurogeriatrics, Karolinska Institutet, 171 77 Stockholm, Sweden
- Department of Biosciences and Nutrition, Karolinska Institutet, 141 57 Huddinge, Sweden
- Department of Biochemistry, Faculty of Veterinary Medicine, Assiut University, Assiut 71526, Egypt
| | - Mohamed M. Shamekh
- Department of Neurobiology, Care Sciences and Society, Division of Neurogeriatrics, Karolinska Institutet, 171 77 Stockholm, Sweden
- Department of Biosciences and Nutrition, Karolinska Institutet, 141 57 Huddinge, Sweden
- Department of Biochemistry, Faculty of Veterinary Medicine, Assiut University, Assiut 71526, Egypt
| | - Silvia Maioli
- Department of Neurobiology, Care Sciences and Society, Division of Neurogeriatrics, Karolinska Institutet, 171 77 Stockholm, Sweden
| | - Jose Inzunza
- Department of Biosciences and Nutrition, Karolinska Institutet, 141 57 Huddinge, Sweden
- Department of Laboratory Medicine, Karolinska Institutet, 141 52 Huddinge, Sweden
| | - Mukesh Varshney
- Department of Biosciences and Nutrition, Karolinska Institutet, 141 57 Huddinge, Sweden
- Department of Laboratory Medicine, Karolinska Institutet, 141 52 Huddinge, Sweden
| | - Per Nilsson
- Department of Neurobiology, Care Sciences and Society, Division of Neurogeriatrics, Karolinska Institutet, 171 77 Stockholm, Sweden
| | - Ivan Nalvarte
- Department of Neurobiology, Care Sciences and Society, Division of Neurogeriatrics, Karolinska Institutet, 171 77 Stockholm, Sweden
- Department of Biosciences and Nutrition, Karolinska Institutet, 141 57 Huddinge, Sweden
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46
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Liu M, Li T, Liang H, Zhong P. Herbal medicines in Alzheimer's disease and the involvement of gut microbiota. Front Pharmacol 2024; 15:1416502. [PMID: 39081953 PMCID: PMC11286407 DOI: 10.3389/fphar.2024.1416502] [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: 04/12/2024] [Accepted: 06/19/2024] [Indexed: 08/02/2024] Open
Abstract
Alzheimer's disease (AD) is a progressive neurodegenerative disorder characterized by memory loss and cognitive impairment. It severely affects the quality of life of victims. The prevalence of AD has been increasing in recent years. Therefore, it is of great importance to elucidate the pathogenic mechanism of AD and search for effective therapeutic approaches. Gut microbiota dysbiosis, an altered state of gut microbiota, has been well known for its involvement in the pathogenesis of AD. Much effort has been made in searching for approaches capable of modulating the composition of gut microbiota in recent years. Herbal medicines have attracted extensive attention in recent decades for the prevention and treatment of AD. Here, we gave an overview of the recent research progress on the modulatory effects of herbal medicines and herbal formulae on gut microbiota as well as the possible beneficial effects on AD, which may provide new insights into the discovery of anti-AD agents and their therapeutic potential for AD through modulating the composition of gut microbiota.
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Affiliation(s)
- Mingli Liu
- Department of Neurology, Yangpu District Shidong Hospital Affiliated to University of Shanghai for Science and Technology, Shanghai, China
| | - Tuming Li
- Department of Neurology, Yangpu District Shidong Hospital Affiliated to University of Shanghai for Science and Technology, Shanghai, China
| | - Huazheng Liang
- Shanghai Key Laboratory of Anesthesiology and Brain Functional Modulation, Clinical Research Center for Anesthesiology and Perioperative Medicine, Shanghai Fourth People’s Hospital, School of Medicine, Tongji University, Shanghai, China
- Monash Suzhou Research Institute, Suzhou, China
| | - Ping Zhong
- Department of Neurology, Yangpu District Shidong Hospital Affiliated to University of Shanghai for Science and Technology, Shanghai, China
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Sun W, Gong J, Li S, Wang P, Han X, Xu C, Luan H, Li R, Wen B, Wei C. Bibliometric analysis of neuroinflammation and Alzheimer's disease. Front Aging Neurosci 2024; 16:1423139. [PMID: 39076205 PMCID: PMC11284157 DOI: 10.3389/fnagi.2024.1423139] [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: 05/01/2024] [Accepted: 07/02/2024] [Indexed: 07/31/2024] Open
Abstract
Background Alzheimer's disease (AD) is the predominant cause of dementia on a global scale, significantly impacting the health of the elderly population. The pathogenesis of AD is closely linked to neuroinflammation. The present study employs a bibliometric analysis to examine research pertaining to neuroinflammation and AD within the last decade, with the objective of providing a comprehensive overview of the current research profile, hotspots and trends. Methods This research conducted a comprehensive review of publications within the Science Citation Index Expanded of the Web of Science Core Collection Database spanning the years 2014 to 2024. Bibliometric analyses were performed using VOSviewer (version 1.6.19) and CiteSpace (version 6.3.R1) software to visualize data on countries, institutions, authors, journals, keywords, and references. Results A total of 3,833 publications on neuroinflammation and AD were included from January 2014 to January 2024. Publications were mainly from the United States and China. Zetterberg, Henrik emerged as the author with the highest publication output, while Edison, Paul was identified as the most cited author. The most productive journal was Journal of Alzheimers Disease, and the most co-cited was Journal of Neuroinflammation. Research hotspot focused on microglia, mouse models, oxidative stress, and amyloid-beta through keyword analysis. Additionally, keywords such as blood-brain barrier and tau protein exhibited prolonged citation bursts from 2022 to 2024. Conclusion This study provides a comprehensive review of the last 10 years of research on neuroinflammation and AD, including the number and impact of research findings, research hotspots, and future trends. The quantity of publications in this field is increasing, mainly in the United States and China, and there is a need to further strengthen close cooperation with different countries and institutions worldwide. Presently, research hotspots are primarily concentrated on microglia, with a focus on inhibiting their pro-inflammatory responses and promoting their anti-inflammatory functions as a potential direction for future investigations.
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Affiliation(s)
- Wenxian Sun
- Innovation Center for Neurological Disorders and Department of Neurology, Xuanwu Hospital, Capital Medical University, National Clinical Research Center for Geriatric Diseases, Beijing, China
| | - Jin Gong
- College of Integrated Traditional Chinese and Western Medicine, Changchun University of Chinese Medicine, Changchun, China
| | - Shaoqi Li
- College of Integrated Traditional Chinese and Western Medicine, Changchun University of Chinese Medicine, Changchun, China
| | - Pin Wang
- Innovation Center for Neurological Disorders and Department of Neurology, Xuanwu Hospital, Capital Medical University, National Clinical Research Center for Geriatric Diseases, Beijing, China
| | - Xiaodong Han
- Innovation Center for Neurological Disorders and Department of Neurology, Xuanwu Hospital, Capital Medical University, National Clinical Research Center for Geriatric Diseases, Beijing, China
| | - Chang Xu
- Innovation Center for Neurological Disorders and Department of Neurology, Xuanwu Hospital, Capital Medical University, National Clinical Research Center for Geriatric Diseases, Beijing, China
| | - Heya Luan
- Innovation Center for Neurological Disorders and Department of Neurology, Xuanwu Hospital, Capital Medical University, National Clinical Research Center for Geriatric Diseases, Beijing, China
| | - Ruina Li
- School of Biological Science and Medical Engineering, Beihang University, Beijing, China
| | - Boye Wen
- Innovation Center for Neurological Disorders and Department of Neurology, Xuanwu Hospital, Capital Medical University, National Clinical Research Center for Geriatric Diseases, Beijing, China
| | - Cuibai Wei
- Innovation Center for Neurological Disorders and Department of Neurology, Xuanwu Hospital, Capital Medical University, National Clinical Research Center for Geriatric Diseases, Beijing, China
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Galland F, de Espindola JS, Sacilotto ES, Almeida LGVC, Morari J, Velloso LA, Dos Santos LD, Rossini BC, Bertoldo Pacheco MT. Digestion of whey peptide induces antioxidant and anti-inflammatory bioactivity on glial cells: Sequences identification and structural activity analysis. Food Res Int 2024; 188:114433. [PMID: 38823827 DOI: 10.1016/j.foodres.2024.114433] [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: 12/19/2023] [Revised: 04/22/2024] [Accepted: 04/24/2024] [Indexed: 06/03/2024]
Abstract
Whey derived peptides have shown potential activity improving brain function in pathological condition. However, there is little information about their mechanism of action on glial cells, which have important immune functions in brain. Astrocytes and microglia are essential in inflammatory and oxidative defense that take place in neurodegenerative disease. In this work we evaluate antioxidant and anti-inflammatory potential bioactivity of whey peptide in glial cells. Peptides were formed during simulated gastrointestinal digestion (Infogest protocol), and low molecular weight (<5kDA) peptides (WPHf) attenuated reactive oxygen species (ROS) production induced by hydrogen peroxide stimulus in both cells in dose-dependent manner. WPHf induced an increase in the antioxidant glutathione (GSH) content and prevented GSH reduction induced by lipopolysaccharides (LPS) stimulus in astrocytes cells in a cell specific form. An increase in cytokine mRNA expression (TNFα and IL6) and nitric oxide secretion induced by LPS was attenuated by WPHf pre-treatment in both cells. The inflammatory pathway was dependent on NFκB activation. Bioactive peptide ranking analysis showed positive correlation with hydrophobicity and negative correlation with high molecular weights. The sequence identification revealed 19 peptides cross-referred with bioactive database. Whey peptides were rich in leucine, valine and tyrosine in the C-terminal region and lysine in the N-terminal region. The anti-inflammatory and antioxidant potential of whey peptides were assessed in glia cells and its mechanisms of action were related, such as modulation of antioxidant enzymes and anti-inflammatory pathways. Features of the peptide structure, such as molecular size, hydrophobicity and types of amino acids present in the terminal region are associated to bioactivity.
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Affiliation(s)
- Fabiana Galland
- Quality and Science Center of Food, Institute of Food Technology (ITAL), Brazil Ave. 2880, P.O. Box 139, Campinas, SP 13070-178, Brazil.
| | - Juliana Santos de Espindola
- Quality and Science Center of Food, Institute of Food Technology (ITAL), Brazil Ave. 2880, P.O. Box 139, Campinas, SP 13070-178, Brazil
| | - Eduarda Spagnol Sacilotto
- Quality and Science Center of Food, Institute of Food Technology (ITAL), Brazil Ave. 2880, P.O. Box 139, Campinas, SP 13070-178, Brazil
| | - Lilian Gabriely V C Almeida
- Quality and Science Center of Food, Institute of Food Technology (ITAL), Brazil Ave. 2880, P.O. Box 139, Campinas, SP 13070-178, Brazil
| | - Joseane Morari
- Obesity and Comorbidities Research Center (OCRC), University of Campinas, São Paulo, Brazil
| | - Lício Augusto Velloso
- Obesity and Comorbidities Research Center (OCRC), University of Campinas, São Paulo, Brazil.
| | | | - Bruno Cesar Rossini
- Institute of Biotechnology, São Paulo State University (UNESP), Botucatu, SP 18607-440, Brazil.
| | - Maria Teresa Bertoldo Pacheco
- Quality and Science Center of Food, Institute of Food Technology (ITAL), Brazil Ave. 2880, P.O. Box 139, Campinas, SP 13070-178, Brazil.
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Singhaarachchi PH, Antal P, Calon F, Culmsee C, Delpech JC, Feldotto M, Geertsema J, Hoeksema EE, Korosi A, Layé S, McQualter J, de Rooij SR, Rummel C, Slayo M, Sominsky L, Spencer SJ. Aging, sex, metabolic and life experience factors: Contributions to neuro-inflammaging in Alzheimer's disease research. Neurosci Biobehav Rev 2024; 162:105724. [PMID: 38762130 DOI: 10.1016/j.neubiorev.2024.105724] [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: 02/28/2024] [Revised: 04/24/2024] [Accepted: 05/12/2024] [Indexed: 05/20/2024]
Abstract
Alzheimer's disease (AD) is prevalent around the world, yet our understanding of the disease is still very limited. Recent work suggests that the cornerstone of AD may include the inflammation that accompanies it. Failure of a normal pro-inflammatory immune response to resolve may lead to persistent central inflammation that contributes to unsuccessful clearance of amyloid-beta plaques as they form, neuronal death, and ultimately cognitive decline. Individual metabolic, and dietary (lipid) profiles can differentially regulate this inflammatory process with aging, obesity, poor diet, early life stress and other inflammatory factors contributing to a greater risk of developing AD. Here, we integrate evidence for the interface between these factors, and how they contribute to a pro-inflammatory brain milieu. In particular, we discuss the importance of appropriate polyunsaturated fatty acids (PUFA) in the diet for the metabolism of specialised pro-resolving mediators (SPMs); raising the possibility for dietary strategies to improve AD outlook.
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Affiliation(s)
| | - Peter Antal
- Department of Measurement and Information Systems, Budapest University of Technology and Economics, 1111, Hungary
| | - Frédéric Calon
- Faculty of Pharmacy, Centre de Recherche du CHU de Québec-Laval University, Quebec G1V0A6, Canada; International Associated Laboratory OptiNutriBrain-NutriNeuro, Bordeaux F-33000, France; INAF, Quebec G1V0A6, Canada
| | - Carsten Culmsee
- Institute of Pharmacology and Clinical Pharmacy, Philipps University of Marburg, Marburg D-35032, Germany; Center for Mind, Brain and Behavior-CMBB, Giessen, D-35392, Marburg D-35032, Germany
| | - Jean-Christophe Delpech
- International Associated Laboratory OptiNutriBrain-NutriNeuro, Bordeaux F-33000, France; Université de Bordeaux, INRAE, Bordeaux INP, NutriNeurO, UMR 1286, Bordeaux F-33000, France; INAF, Quebec G1V0A6, Canada
| | - Martin Feldotto
- Institute of Veterinary Physiology and Biochemistry, Justus Liebig University Giessen, Giessen D-35392, Germany
| | - Jorine Geertsema
- Center for Neuroscience, Swammerdam Institute for Life Sciences, University of Amsterdam, Amsterdam 1018, the Netherlands
| | - Emmy E Hoeksema
- Center for Neuroscience, Swammerdam Institute for Life Sciences, University of Amsterdam, Amsterdam 1018, the Netherlands
| | - Aniko Korosi
- Center for Neuroscience, Swammerdam Institute for Life Sciences, University of Amsterdam, Amsterdam 1018, the Netherlands
| | - Sophie Layé
- International Associated Laboratory OptiNutriBrain-NutriNeuro, Bordeaux F-33000, France; Université de Bordeaux, INRAE, Bordeaux INP, NutriNeurO, UMR 1286, Bordeaux F-33000, France; INAF, Quebec G1V0A6, Canada
| | - Jonathan McQualter
- School of Health and Biomedical Sciences, RMIT University, Bundoora, Melbourne, Victoria 3083, Australia
| | - Susanne R de Rooij
- Department of Epidemiology and Data Science, Amsterdam University Medical Centers, University of Amsterdam, 1018, the Netherlands
| | - Christoph Rummel
- Center for Mind, Brain and Behavior-CMBB, Giessen, D-35392, Marburg D-35032, Germany; Institute of Veterinary Physiology and Biochemistry, Justus Liebig University Giessen, Giessen D-35392, Germany
| | - Mary Slayo
- School of Health and Biomedical Sciences, RMIT University, Bundoora, Melbourne, Victoria 3083, Australia; Center for Mind, Brain and Behavior-CMBB, Giessen, D-35392, Marburg D-35032, Germany; Institute of Veterinary Physiology and Biochemistry, Justus Liebig University Giessen, Giessen D-35392, Germany
| | - Luba Sominsky
- Barwon Health, Geelong, Victoria 3220, Australia; IMPACT - the Institute for Mental and Physical Health and Clinical Translation, School of Medicine, Deakin University, Geelong, Victoria 3217, Australia
| | - Sarah J Spencer
- School of Health and Biomedical Sciences, RMIT University, Bundoora, Melbourne, Victoria 3083, Australia.
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50
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Iram F, Shahid M, Ansari J, Ashraf GM, Hassan MI, Islam A. Navigating the Maze of Alzheimer's disease by exploring BACE1: Discovery, current scenario, and future prospects. Ageing Res Rev 2024; 98:102342. [PMID: 38762102 DOI: 10.1016/j.arr.2024.102342] [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: 03/07/2024] [Revised: 05/04/2024] [Accepted: 05/13/2024] [Indexed: 05/20/2024]
Abstract
Alzheimer's disease (AD) is a chronic neurological condition that has become a leading cause of cognitive decline in elder individuals. Hardly any effective medication has been developed to halt the progression of AD due to the disease's complexity. Several theories have been put forward to clarify the mechanisms underlying AD etiology. The identification of amyloid plaques as a hallmark of AD has sparked the development of numerous drugs targeting the players involved in the amyloidogenic pathway, such as the β-site of amyloid precursor protein cleavage enzyme 1 (BACE1) blockers. Over the last ten years, preclinical and early experimental research has led several pharmaceutical companies to prioritize producing BACE1 inhibitors. Despite all these efforts, earlier discovered inhibitors were discontinued in consideration of another second-generation small molecules and recent BACE1 antagonists failed in the final stages of clinical trials because of the complications associated either with toxicity or effectiveness. In addition to discussing the difficulties associated with development of BACE1 inhibitors, this review aims to provide an overview of BACE1 and offer perspectives on the causes behind the failure of five recent BACE1 inhibitors, that would be beneficial for choosing effective treatment approaches in the future.
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Affiliation(s)
- Faiza Iram
- 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, Saudi Arabia
| | - Jaoud Ansari
- Centre for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia, Jamia Nagar, New Delhi 110025, India
| | - Ghulam Md Ashraf
- University of Sharjah, College of Health Sciences, and Research Institute for Medical and Health Sciences, Department of Medical Laboratory Sciences, Sharjah 27272, United Arab Emirates
| | - Md 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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