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Wei N, Zhang LM, Xu JJ, Li SL, Xue R, Ma SL, Li C, Sun MM, Chen KS. Astaxanthin Rescues Memory Impairments in Rats with Vascular Dementia by Protecting Against Neuronal Death in the Hippocampus. Neuromolecular Med 2024; 26:29. [PMID: 39014255 DOI: 10.1007/s12017-024-08796-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: 05/29/2024] [Accepted: 06/25/2024] [Indexed: 07/18/2024]
Abstract
Vascular dementia (VaD) is a cognitive disorder characterized by a decline in cognitive function resulting from cerebrovascular disease. The hippocampus is particularly susceptible to ischemic insults, leading to memory deficits in VaD. Astaxanthin (AST) has shown potential therapeutic effects in neurodegenerative diseases. However, the mechanisms underlying its protective effects in VaD and against hippocampal neuronal death remain unclear. In this study, We used the bilateral common carotid artery occlusion (BCCAO) method to establish a chronic cerebral hypoperfusion (CCH) rat model of VaD and administered a gastric infusion of AST at 25 mg/kg per day for 4 weeks to explore its therapeutic effects. Memory impairments were assessed using Y-maze and Morris water maze tests. We also performed biochemical analyses to evaluate levels of hippocampal neuronal death and apoptosis-related proteins, as well as the impact of astaxanthin on the PI3K/Akt/mTOR pathway and oxidative stress. Our results demonstrated that AST significantly rescued memory impairments in VaD rats. Furthermore, astaxanthin treatment protected against hippocampal neuronal death and attenuated apoptosis. We also observed that AST modulated the PI3K/Akt/mTOR pathway, suggesting its involvement in promoting neuronal survival and synaptic plasticity. Additionally, AST exhibited antioxidant properties, mitigating oxidative stress in the hippocampus. These findings provide valuable insights into the potential therapeutic effects of AST in VaD. By elucidating the mechanisms underlying the actions of AST, this study highlights the importance of protecting hippocampal neurons and suggests potential targets for intervention in VaD. There are still some unanswered questions include long-term effects and optimal dosage of the use in human. Further research is warranted to fully understand the therapeutic potential of AST and its application in the clinical treatment of VaD.
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Affiliation(s)
- Na Wei
- Department of Pathology, The First Affiliated Hospital of Zhengzhou University, No.1 Jian She Dong Avenue, Zhengzhou, 450002, People's Republic of China.
- Henan Key Laboratory of Tumor Pathology, No.1 Jian She Dong Avenue, Zhengzhou, 450002, People's Republic of China.
- Department of Pathology, School of Basic Medicine, Zhengzhou University, No.100 Ke Xue Avenue, Zhengzhou, 450002, People's Republic of China.
| | - Luo-Man Zhang
- Department of Pathology, The First Affiliated Hospital of Zhengzhou University, No.1 Jian She Dong Avenue, Zhengzhou, 450002, People's Republic of China
- Henan Key Laboratory of Tumor Pathology, No.1 Jian She Dong Avenue, Zhengzhou, 450002, People's Republic of China
- Department of Pathology, School of Basic Medicine, Zhengzhou University, No.100 Ke Xue Avenue, Zhengzhou, 450002, People's Republic of China
| | - Jing-Jing Xu
- Department of Pathology, The First Affiliated Hospital of Zhengzhou University, No.1 Jian She Dong Avenue, Zhengzhou, 450002, People's Republic of China
- Henan Key Laboratory of Tumor Pathology, No.1 Jian She Dong Avenue, Zhengzhou, 450002, People's Republic of China
- Department of Pathology, School of Basic Medicine, Zhengzhou University, No.100 Ke Xue Avenue, Zhengzhou, 450002, People's Republic of China
| | - Sheng-Lei Li
- Department of Pathology, The First Affiliated Hospital of Zhengzhou University, No.1 Jian She Dong Avenue, Zhengzhou, 450002, People's Republic of China
- Henan Key Laboratory of Tumor Pathology, No.1 Jian She Dong Avenue, Zhengzhou, 450002, People's Republic of China
- Department of Pathology, School of Basic Medicine, Zhengzhou University, No.100 Ke Xue Avenue, Zhengzhou, 450002, People's Republic of China
| | - Rui Xue
- Medical Research Center, The First Affiliated Hospital of Zhengzhou University, No.1 Jian She Dong Avenue, Zhengzhou, 450002, People's Republic of China
| | - Sheng-Li Ma
- Department of Emergency, The First Affiliated Hospital of Zhengzhou University, No.1 Jian She Dong Avenue, Zhengzhou, 450002, People's Republic of China
| | - Cai Li
- Department of Pharmacy, The First Affiliated Hospital of Zhengzhou University, No.1 Jianshe Dong Road, Zhengzhou, 450002, People's Republic of China
| | - Miao-Miao Sun
- Department of Pathology, The First Affiliated Hospital of Zhengzhou University, No.1 Jian She Dong Avenue, Zhengzhou, 450002, People's Republic of China
- Henan Key Laboratory of Tumor Pathology, No.1 Jian She Dong Avenue, Zhengzhou, 450002, People's Republic of China
- Department of Pathology, School of Basic Medicine, Zhengzhou University, No.100 Ke Xue Avenue, Zhengzhou, 450002, People's Republic of China
| | - Kui-Sheng Chen
- Department of Pathology, The First Affiliated Hospital of Zhengzhou University, No.1 Jian She Dong Avenue, Zhengzhou, 450002, People's Republic of China
- Henan Key Laboratory of Tumor Pathology, No.1 Jian She Dong Avenue, Zhengzhou, 450002, People's Republic of China
- Department of Pathology, School of Basic Medicine, Zhengzhou University, No.100 Ke Xue Avenue, Zhengzhou, 450002, People's Republic of China
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Yang C, Zheng C, Zhuang Y, Xu S, Li J, Hu C. Synaptic Vesicle-Related Proteins and Ubiquilin 2 in Cortical Synaptosomes Mediate Cognitive Impairment in Vascular Dementia Rats. Mol Neurobiol 2024:10.1007/s12035-024-04327-w. [PMID: 38990251 DOI: 10.1007/s12035-024-04327-w] [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: 03/27/2024] [Accepted: 06/21/2024] [Indexed: 07/12/2024]
Abstract
Synaptic dysfunction is considered the best neuropathological correlate of cognitive decline in vascular dementia (VaD). However, the alterations of synaptic proteins at the synaptosomal level in VaD remain unclear. In this study, a VaD model was established in male rats using bilateral common carotid artery occlusion (2VO). We performed a novel object recognition task to evaluate cognitive impairment. Immunohistochemistry was used to assess the expression of neuron-specific nuclear binding protein (NeuN). Brain synaptosomes were isolated and subjected to label-free proteomic analysis to quantify and identify the synaptic features of differentially expressed proteins (DEPs). Synaptic and hub protein expression was detected in synaptosomes using western blotting. We found that male rats with VaD presented impaired memory and decreased NeuN protein expression in the cortex. Synaptosome proteomic analysis revealed 604 DEPs, with 493 and 111 markedly downregulated and upregulated proteins, respectively. KEGG analysis and SynGO annotation revealed that the synaptic vesicle (SV) cycle may be a key signaling pathway in VaD. Hub protein analysis of the main nodes in the protein network identified UBQLN2 and SV-related proteins, including CLTC, SNAP91, AP2S1, CLTA, VAMP2, EPN1, UBQLN2, AP2B1, AP2A2, and AP2M1. Western blotting showed that the levels of SV2A, CLTC, AP2S1, and VAMP2 decreased in the synaptosomes of 2VO rats, while UBQLN2 expression significantly increased. Our results suggest that the disruption in the presynaptic SV cycle is a key event in male rats with VaD, which could be characterized by the aberrant SV2A expression. SV-related proteins and UBQLN2 may be essential in synaptopathy. Thus, targeting the specific molecular markers in synaptosomes may be critical for the development of mechanism-directed therapies against VaD.
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Affiliation(s)
- Cuicui Yang
- Department of Clinical Trial Center, Beijing Tiantan Hospital, Capital Medical University, No.119 South Fourth Ring West Road, Beijing, 100070, China.
- Department of Pharmacy, Xuanwu Hospital of Capital Medical University, Beijing, 100053, China.
| | - Cengceng Zheng
- Department of Pharmacy, Xuanwu Hospital of Capital Medical University, Beijing, 100053, China
| | - Yuming Zhuang
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, 100069, China
| | - Shuhong Xu
- Department of Clinical Trial Center, Beijing Tiantan Hospital, Capital Medical University, No.119 South Fourth Ring West Road, Beijing, 100070, China
| | - Jian Li
- Department of Clinical Trial Center, Beijing Tiantan Hospital, Capital Medical University, No.119 South Fourth Ring West Road, Beijing, 100070, China
| | - Chaoying Hu
- Phase I Clinical Trial Unit, Beijing Ditan Hospital of Capital Medical University, No. 8 East Jingshun Road, Beijing, 100015, China.
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Wang Y, Lu J, Xiao H, Ding L, He Y, Chang C, Wang W. Iridoids rich fraction from Valeriana jatamansi Jones promotes axonal regeneration and motor functional recovery after spinal cord injury through activation of the PI3K/Akt signaling pathway. Front Mol Neurosci 2024; 17:1400927. [PMID: 38756705 PMCID: PMC11097773 DOI: 10.3389/fnmol.2024.1400927] [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: 03/14/2024] [Accepted: 04/16/2024] [Indexed: 05/18/2024] Open
Abstract
Valeriana jatamansi Jones (VJJ), renowned for its extensive history in traditional Chinese medicine and ethnomedicine within China, is prevalently utilized to alleviate ailments such as epigastric distension and pain, gastrointestinal disturbances including food accumulation, diarrhea, and dysentery, as well as insomnia and other diseases. Moreover, the Iridoid-rich fraction derived from Valeriana jatamansi Jones (IRFV) has demonstrated efficacy in facilitating the recuperation of motor functions after spinal cord injury (SCI). This study is aimed to investigate the therapeutic effect of IRFV on SCI and its underlying mechanism. Initially, a rat model of SCI was developed to assess the impact of IRFV on axonal regeneration. Subsequently, employing the PC12 cell model of oxidative damage, the role and mechanism of IRFV in enhancing axonal regeneration were explored using the phosphoinositide-3-kinase (PI3K)/protein kinase B (Akt) signaling pathway inhibitor LY294002. Ultimately, the same inhibitor was administered to SCI rats to confirm the molecular mechanism through which IRFV promotes axonal regeneration by activating the PI3K/Akt signaling pathway. The results showed that IRFV significantly enhanced motor function recovery, reduced pathological injury, and facilitated axonal regeneration in SCI rats. In vitro experiments revealed that IRFV improved PC12 cell viability, augmented axonal regeneration, and activated the PI3K/Akt signaling pathway. Notably, the inhibition of this pathway negated the therapeutic benefits of IRFV in SCI rats. In conclusion, IRFV promote promotes axonal regeneration and recovery of motor function after SCI through activation of the PI3K/Akt signaling pathway.
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Affiliation(s)
- Yunyun Wang
- Department of Rehabilitation Medicine, The General Hospital of Western Theater Command, Affiliated Hospital of Southwest Jiaotong University, Chengdu, Sichuan, China
| | - Jiachun Lu
- Chengdu Eighth People’s Hospital (Geriatric Hospital of Chengdu Medical College), Chengdu, Sichuan, China
| | - Hua Xiao
- Department of Rehabilitation Medicine, The General Hospital of Western Theater Command, Affiliated Hospital of Southwest Jiaotong University, Chengdu, Sichuan, China
| | - Lijuan Ding
- Department of Rehabilitation Medicine, The General Hospital of Western Theater Command, Affiliated Hospital of Southwest Jiaotong University, Chengdu, Sichuan, China
| | - Yongzhi He
- North Sichuan Medical College, Chengdu, Sichuan, China
| | - Cong Chang
- Chengdu Eighth People’s Hospital (Geriatric Hospital of Chengdu Medical College), Chengdu, Sichuan, China
| | - Wenchun Wang
- Department of Rehabilitation Medicine, The General Hospital of Western Theater Command, Affiliated Hospital of Southwest Jiaotong University, Chengdu, Sichuan, China
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Wang X, Chen W, Yuan P, Xu H. RAGE acted as a new anti-inflammatory target for Icariin's treatment against vascular dementia based on network pharmacology-directed verification. J Biomol Struct Dyn 2023:1-21. [PMID: 37768122 DOI: 10.1080/07391102.2023.2256409] [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: 06/26/2023] [Accepted: 08/22/2023] [Indexed: 09/29/2023]
Abstract
Vascular dementia (VaD) ranks as the second most prevalent form of dementia and poses a considerable global health challenge. Icariin has been recognized for its robust neuroprotective effects in combating VaD. Nonetheless, the underlying mechanisms have not been fully elucidated. An integrated approach involving network pharmacology, molecular docking, and molecular dynamics simulations (MDS) was employed to systematically investigate the potential pharmacological actions of Icariin in counteracting VaD. The AGE/RAGE pathway was identified as a promising anti-inflammatory pathway. A chronic cerebral hypoperfusion mouse model was utilized to establish VaD. Both Icariin and FP S-ZM1 (a RAGE inhibitor) were administered through oral gavage and intraperitoneal injection, respectively. The Morris water maze (MWZ) was used to evaluate cognitive functions. Moreover, immunofluorescence, RT-qP CR, and Western blot analyses were carried out to evaluate the effects of FP S-ZM1 on neuroinflammation. Network analysis identified 14 crucial targets and highlighted the AGE-RAGE signaling cascade in diabetic complications as the foremost KEGG pathway with potential anti-neuroinflammatory property. MDS results suggested a stable binding of the RAGE-Icariin complex. Remarkably, Icariin was found to effectively mitigate cognitive deficits in VaD mice, which was correlated with the upregulation of the P I3K/AKT pathway and downregulation of the JNK/cJUN signaling cascade. Critically, co-administration of FP S-ZM1 enhanced Icariin's ameliorative effects on cognitive deficits, owing to bolstered anti-neuroinflammatory action. This study unveils the potential of Icariin in alleviating cognitive dysfunction and neuroinflammation in VaD, which may be attributed to the modulation of the AGE/RAGE pathway.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Xiaohu Wang
- Department of Neurology, The Affiliated Hospital of Guizhou Medical University, Guizhou, China
| | - Wei Chen
- Department of Neurology, The Affiliated Hospital of Guizhou Medical University, Guizhou, China
| | - Ping Yuan
- Department of Neurology, The Affiliated Hospital of Guizhou Medical University, Guizhou, China
| | - Hongbei Xu
- Department of Neurology, The Affiliated Hospital of Guizhou Medical University, Guizhou, China
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Yang Y, Zhang X, Li D, Fang R, Wang Z, Yun D, Wang M, Wang J, Dong H, Fei Z, Li Q, Liu Z, Shen C, Fei J, Yu M, Behnisch T, Huang F. NRSF regulates age-dependently cognitive ability and its conditional knockout in APP/PS1 mice moderately alters AD-like pathology. Hum Mol Genet 2023; 32:2558-2575. [PMID: 36229920 DOI: 10.1093/hmg/ddac253] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2022] [Revised: 09/19/2022] [Accepted: 10/06/2022] [Indexed: 11/12/2022] Open
Abstract
NRSF/REST (neuron-restrictive silencer element, also known as repressor element 1-silencing transcription factor), plays a key role in neuronal homeostasis as a transcriptional repressor of neuronal genes. NRSF/REST relates to cognitive preservation and longevity of humans, but its specific functions in age-dependent and Alzheimer's disease (AD)-related memory deficits remain unclear. Here, we show that conditional NRSF/REST knockout either in the dorsal telencephalon or specially in neurons induced an age-dependently diminished retrieval performance in spatial or fear conditioning memory tasks and altered hippocampal synaptic transmission and activity-dependent synaptic plasticity. The NRSF/REST deficient mice were also characterized by an increase of activated glial cells, complement C3 protein and the transcription factor C/EBPβ in the cortex and hippocampus. Reduction of NRSF/REST by conditional depletion upregulated the activation of astrocytes in APP/PS1 mice, and increased the C3-positive glial cells, but did not alter the Aβ loads and memory retrieval performances of 6- and 12-month-old APP/PS1 mice. Simultaneously, overexpression of NRSF/REST improved cognitive abilities of aged wild type, but not in AD mice. These findings demonstrated that NRSF/REST is essential for the preservation of memory performance and activity-dependent synaptic plasticity during aging and takes potential roles in the onset of age-related memory impairments. However, while altering the glial activation, NRSF/REST deficiency does not interfere with the Aβ deposits and the electrophysiological and cognitive AD-like pathologies.
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Affiliation(s)
- Yufang Yang
- Department of Translational Neuroscience, Jing'an District Centre Hospital of Shanghai, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institutes of Brain Science, Fudan University, 138 Yixueyuan Road, Shanghai 200032, China
- School of Basic Medical Sciences, Shanghai University of Traditional Chinese Medicine, 1200 Cailun Road, Shanghai 201203, China
| | - Xiaoshuang Zhang
- Department of Translational Neuroscience, Jing'an District Centre Hospital of Shanghai, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institutes of Brain Science, Fudan University, 138 Yixueyuan Road, Shanghai 200032, China
| | - Dongxue Li
- Department of Translational Neuroscience, Jing'an District Centre Hospital of Shanghai, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institutes of Brain Science, Fudan University, 138 Yixueyuan Road, Shanghai 200032, China
- Department of Endocrinology and Metabolism, School of Medicine, Shanghai Tenth People's Hospital of Tongji University, No. 301 Middle Yanchang Road, Shanghai 200072, China
| | - Rong Fang
- Department of Translational Neuroscience, Jing'an District Centre Hospital of Shanghai, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institutes of Brain Science, Fudan University, 138 Yixueyuan Road, Shanghai 200032, China
| | - Zishan Wang
- Department of Translational Neuroscience, Jing'an District Centre Hospital of Shanghai, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institutes of Brain Science, Fudan University, 138 Yixueyuan Road, Shanghai 200032, China
| | - Di Yun
- Department of Translational Neuroscience, Jing'an District Centre Hospital of Shanghai, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institutes of Brain Science, Fudan University, 138 Yixueyuan Road, Shanghai 200032, China
| | - Mo Wang
- Department of Translational Neuroscience, Jing'an District Centre Hospital of Shanghai, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institutes of Brain Science, Fudan University, 138 Yixueyuan Road, Shanghai 200032, China
| | - Jinghui Wang
- Department of Translational Neuroscience, Jing'an District Centre Hospital of Shanghai, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institutes of Brain Science, Fudan University, 138 Yixueyuan Road, Shanghai 200032, China
| | - Hongtian Dong
- Department of Translational Neuroscience, Jing'an District Centre Hospital of Shanghai, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institutes of Brain Science, Fudan University, 138 Yixueyuan Road, Shanghai 200032, China
| | - Zhaoliang Fei
- State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Ren Ji Hospital, Shanghai Jiao Tong University of Medicine, Shanghai 200240, China
| | - Qing Li
- Department of Translational Neuroscience, Jing'an District Centre Hospital of Shanghai, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institutes of Brain Science, Fudan University, 138 Yixueyuan Road, Shanghai 200032, China
| | - Zhaolin Liu
- Department of Translational Neuroscience, Jing'an District Centre Hospital of Shanghai, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institutes of Brain Science, Fudan University, 138 Yixueyuan Road, Shanghai 200032, China
| | - Chenye Shen
- Department of Translational Neuroscience, Jing'an District Centre Hospital of Shanghai, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institutes of Brain Science, Fudan University, 138 Yixueyuan Road, Shanghai 200032, China
| | - Jian Fei
- Shanghai Engineering Research Center for Model Organisms, Shanghai Model Organisms Center, INC., Shanghai 201203, China
- School of Life Science and Technology, Tongji University, 1239 Siping Road, Shanghai 200092, China
| | - Mei Yu
- Department of Translational Neuroscience, Jing'an District Centre Hospital of Shanghai, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institutes of Brain Science, Fudan University, 138 Yixueyuan Road, Shanghai 200032, China
| | - Thomas Behnisch
- Department of Translational Neuroscience, Jing'an District Centre Hospital of Shanghai, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institutes of Brain Science, Fudan University, 138 Yixueyuan Road, Shanghai 200032, China
| | - Fang Huang
- Department of Translational Neuroscience, Jing'an District Centre Hospital of Shanghai, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institutes of Brain Science, Fudan University, 138 Yixueyuan Road, Shanghai 200032, China
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Zhang Y, Huang H, Yao C, Sun X, He Q, Choudharyc MI, Chen S, Liu X, Jiang N. Fresh Gastrodia elata Blume alleviates simulated weightlessness-induced cognitive impairment by regulating inflammatory and apoptosis-related pathways. Front Pharmacol 2023; 14:1173920. [PMID: 37205911 PMCID: PMC10188943 DOI: 10.3389/fphar.2023.1173920] [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: 02/25/2023] [Accepted: 04/05/2023] [Indexed: 05/21/2023] Open
Abstract
In aerospace medicine, the influence of microgravity on cognition has always been a risk factor threatening astronauts' health. The traditional medicinal plant and food material Gastrodia elata Blume has been used as a therapeutic drug for neurological diseases for a long time due to its unique neuroprotective effect. To study the effect of fresh Gastrodia elata Blume (FG) on cognitive impairment caused by microgravity, hindlimb unloading (HU) was used to stimulate weightlessness in mice. The fresh Gastrodia elata Blume (0.5 g/kg or 1.0 g/kg) was intragastrically administered daily to mice exposed to HU and behavioral tests were conducted after four weeks to detect the cognitive status of animals. The behavioral tests results showed that fresh Gastrodia elata Blume therapy significantly improved the performance of mice in the object location recognition test, Step-Down test, and Morris Water Maze test, including short-term and long-term spatial memory. According to the biochemical test results, fresh Gastrodia elata Blume administration not only reduced serum factor levels of oxidative stress but also maintained the balance of pro-inflammatory and anti-inflammatory factors in the hippocampus, reversing the abnormal increase of NLRP3 and NF-κB. The apoptosis-related proteins were downregulated which may be related to the activation of the PI3K/AKT/mTOR pathway by fresh Gastrodia elata Blume therapy, and the abnormal changes of synapse-related protein and glutamate neurotransmitter were corrected. These results identify the improvement effect of fresh Gastrodia elata Blume as a new application form of Gastrodia elata Blume on cognitive impairment caused by simulated weightlessness and advance our understanding of the mechanism of fresh Gastrodia elata Blume on the neuroprotective effect.
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Affiliation(s)
- Yiwen Zhang
- Research Center for Pharmacology and Toxicology, Institute of Medicinal Plant Development (IMPLAD), Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Hong Huang
- Research Center for Pharmacology and Toxicology, Institute of Medicinal Plant Development (IMPLAD), Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Caihong Yao
- Research Center for Pharmacology and Toxicology, Institute of Medicinal Plant Development (IMPLAD), Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Xinran Sun
- Research Center for Pharmacology and Toxicology, Institute of Medicinal Plant Development (IMPLAD), Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Qinghu He
- Sino-Pakistan Center on Traditional Chinese Medicine, Hunan University of Medicine, Huaihua, China
| | - Muhammad Iqbal Choudharyc
- H.E.J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi, Pakistan
| | - Shanguang Chen
- National Laboratory of Human Factors Engineering, The State Key Laboratory of Space Medicine Fundamentals and Application, China Astronaut Research and Training Center, Beijing, China
| | - Xinmin Liu
- Sino-Pakistan Center on Traditional Chinese Medicine, Hunan University of Medicine, Huaihua, China
- Institute of Drug Discovery Technology, Ningbo University, Ningbo, China
- Healthy & Intelligent Kitchen Engineering Research Center of Zhejiang Province, Zhejiang, China
- *Correspondence: Xinmin Liu, ; Ning Jiang,
| | - Ning Jiang
- Research Center for Pharmacology and Toxicology, Institute of Medicinal Plant Development (IMPLAD), Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
- *Correspondence: Xinmin Liu, ; Ning Jiang,
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Zheng C, Yang C, Gao D, Zhang L, Li Y, Li L, Zhang L. Cornel Iridoid Glycoside Alleviates Microglia-Mediated Inflammatory Response via the NLRP3/Calpain Pathway. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2022; 70:11967-11980. [PMID: 36104266 DOI: 10.1021/acs.jafc.2c03851] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Vascular dementia (VaD) is associated with cerebral hypoperfusion, which results in long-term cognitive impairment and memory loss. Cornel iridoid glycoside (CIG) is the major active constituent isolated from the ripe fruit of Cornus officinalis. Previous studies have shown that CIG enhances neurological function in VaD rats. In the present research, we attempted to clarify the molecular processes underlying the role of CIG in neuroinflammation in VaD. We created a chronic cerebral ischemia rat model by ligation of the bilateral common carotid arteries (2VO) and then treated rats with different concentrations of CIG. Comprehensive analyses revealed that CIG ameliorated myelin integrity and neuronal loss. Furthermore, we also found that CIG inhibited polarized microglia activation and attenuated inflammasome-mediated production of proinflammatory cytokines in BV2 microglia cells induced by LPS/IFN-γ and in the brains of 2VO rats. To further elucidate the role of CIG in microglia-mediated inflammatory response, we investigated the expression and activity of calpain. CIG inhibited the expression and activity of calpain 1/2, which was characterized by decreased calpastatin and spectrin αII expression. In particular, intra- and extracellular calpain 1 levels were reduced by CIG. However, CIG showed weak interaction with calpain 1. In addition, we found that CG administration significantly repressed the assembly of the NOD-like receptor protein 3 (NLRP3) inflammasome, including NLRP3, ASC, and caspase-1. In conclusion, our knowledge of the mechanisms by which CIG regulates NLRP3/calpain signaling to influence inflammatory responses offers further insights into potential therapeutic strategies to treat VaD.
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Affiliation(s)
- Cengceng Zheng
- Department of Pharmacy, Xuanwu Hospital of Capital Medical University, National Clinical Research Center for Geriatric Diseases, Beijing Engineering Research Center for Nervous System Drugs, Beijing Institute for Brain Disorders, Key Laboratory for Neurodegenerative Diseases of Ministry of Education, Beijing 100053, China
| | - Cuicui Yang
- Department of Pharmacy, Xuanwu Hospital of Capital Medical University, National Clinical Research Center for Geriatric Diseases, Beijing Engineering Research Center for Nervous System Drugs, Beijing Institute for Brain Disorders, Key Laboratory for Neurodegenerative Diseases of Ministry of Education, Beijing 100053, China
| | - Dan Gao
- Department of Pharmacy, Xuanwu Hospital of Capital Medical University, National Clinical Research Center for Geriatric Diseases, Beijing Engineering Research Center for Nervous System Drugs, Beijing Institute for Brain Disorders, Key Laboratory for Neurodegenerative Diseases of Ministry of Education, Beijing 100053, China
| | - Li Zhang
- Department of Pharmacy, Xuanwu Hospital of Capital Medical University, National Clinical Research Center for Geriatric Diseases, Beijing Engineering Research Center for Nervous System Drugs, Beijing Institute for Brain Disorders, Key Laboratory for Neurodegenerative Diseases of Ministry of Education, Beijing 100053, China
| | - Yali Li
- Department of Pharmacy, Xuanwu Hospital of Capital Medical University, National Clinical Research Center for Geriatric Diseases, Beijing Engineering Research Center for Nervous System Drugs, Beijing Institute for Brain Disorders, Key Laboratory for Neurodegenerative Diseases of Ministry of Education, Beijing 100053, China
| | - Lin Li
- Department of Pharmacy, Xuanwu Hospital of Capital Medical University, National Clinical Research Center for Geriatric Diseases, Beijing Engineering Research Center for Nervous System Drugs, Beijing Institute for Brain Disorders, Key Laboratory for Neurodegenerative Diseases of Ministry of Education, Beijing 100053, China
| | - Lan Zhang
- Department of Pharmacy, Xuanwu Hospital of Capital Medical University, National Clinical Research Center for Geriatric Diseases, Beijing Engineering Research Center for Nervous System Drugs, Beijing Institute for Brain Disorders, Key Laboratory for Neurodegenerative Diseases of Ministry of Education, Beijing 100053, China
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Miao BB, Gao D, Hao JP, Li YL, Li L, Wang JB, Xiao XH, Yang CC, Zhang L. Tetrahydroxy stilbene glucoside alters neurogenesis and neuroinflammation to ameliorate radiation-associated cognitive disability via AMPK/Tet2. Int Immunopharmacol 2022; 110:108928. [DOI: 10.1016/j.intimp.2022.108928] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Revised: 05/23/2022] [Accepted: 06/05/2022] [Indexed: 11/26/2022]
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9
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Huang H, Zhang Y, Yao C, He Q, Chen F, Yu H, Lu G, Jiang N, Liu X. The effects of fresh Gastrodia elata Blume on the cognitive deficits induced by chronic restraint stress. Front Pharmacol 2022; 13:890330. [PMID: 36105220 PMCID: PMC9464977 DOI: 10.3389/fphar.2022.890330] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Accepted: 08/03/2022] [Indexed: 12/03/2022] Open
Abstract
Chronic restraint stress (CRS) is a classic animal model of stress that can lead to various physiological and psychological dysfunctions, including systemic neuroinflammation and memory deficits. Fresh Gastrodia elata Blume (FG), the unprocessed raw tuber of Gastrodia elata Blume, has been reported to alleviate the symptoms of headache, convulsions, and neurodegenerative diseases, while the protective effects of FG on CRS-induced cognitive deficits remain unclear. This work aimed to evaluate the effects of FG on CRS-induced cognitive deficits through multiplex animal behavior tests and to further explore the related mechanism by observing the expression of mitochondrial apoptosis-related proteins in the mouse hippocampus. In in vivo experiments, mice were subjected to the object location recognition test (OLRT), new object recognition test (NORT), Morris water maze test (MWMT), and passive avoidance test (PAT) to evaluate the learning and memory ability. In in vitro experiments, the expression of the AKT/CREB pathway, the fission- and apoptosis-related proteins (Drp1, Cyt C, and BAX), and the proinflammatory cytokines’ (TNF‐α and IL‐1β) level in the hippocampus was examined. Our results demonstrated that in spontaneous behavior experiments, FG significantly improved the cognitive performance of CRS model mice in OLRT (p < 0.05) and NORT (p < 0.05). In punitive behavior experiments, FG shortened the escape latency in long-term spatial memory test (MWMT, p < 0.01) and prolonged the latency into the dark chamber in non-spatial memory test (PAT, p < 0.01). Biochemical analysis showed that FG treatment significantly suppressed CRS‐induced Cyt C, Drp1, and BAX activation (p < 0.001, p < 0.01 and p < 0.05), promoted the CREB, p-CREB, AKT, and p-AKT level (p < 0.05, p < 0.01 and p < 0.001), and inhibited the CRS‐induced proinflammatory cytokines (TNF‐α and IL‐1β, p < 0.05 and p < 0.001) level in the hippocampus. Taken together, these results suggested that FG could attenuate cognitive deficits induced by CRS on multiple learning and memory behavioral tests.
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Affiliation(s)
- Hong Huang
- Research Center for Pharmacology and Toxicology, Institute of Medicinal Plant Development (IMPLAD), Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Yiwen Zhang
- Research Center for Pharmacology and Toxicology, Institute of Medicinal Plant Development (IMPLAD), Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Caihong Yao
- Research Center for Pharmacology and Toxicology, Institute of Medicinal Plant Development (IMPLAD), Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Qinghu He
- Sino-Pakistan Center on Traditional Chinese Medicine, Hunan University of Medicine, Huaihua, China
| | - Fang Chen
- Hunan University of Chinese Medicine, College of Traditional Chinese Medicine, Changsha, China
| | - Han Yu
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Guanghua Lu
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Ning Jiang
- Research Center for Pharmacology and Toxicology, Institute of Medicinal Plant Development (IMPLAD), Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
- *Correspondence: Ning Jiang, ; Xinmin Liu,
| | - Xinmin Liu
- Research Center for Pharmacology and Toxicology, Institute of Medicinal Plant Development (IMPLAD), Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
- Institute of Drug Discovery Technology, Ningbo University, Ningbo, China
- *Correspondence: Ning Jiang, ; Xinmin Liu,
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10
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Piperine Provides Neuroprotection against Kainic Acid-Induced Neurotoxicity via Maintaining NGF Signalling Pathway. Molecules 2022; 27:molecules27092638. [PMID: 35565989 PMCID: PMC9104445 DOI: 10.3390/molecules27092638] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2022] [Revised: 04/19/2022] [Accepted: 04/19/2022] [Indexed: 12/21/2022] Open
Abstract
The neuroprotective properties of piperine, the major alkaloid extracted from black pepper, have been under investigation, but its mechanism of action in excitotoxicity is still poorly understood. This study aimed to evaluate the protective effects of piperine with a focus on nerve growth factor (NGF) signalling in a kainic acid (KA) rat model of excitotoxicity. Rats were administered intraperitoneally (i.p.) piperine (10 or 50 mg/kg) before KA injection (15 mg/kg, i.p.). Our results show that KA exposure in rats caused seizure behaviour, intrinsic neuronal hyperactivity, glutamate elevation, hippocampal neuronal damage, and cognitive impairment. These KA-induced alterations could be restored to the normal state by piperine treatment. In addition, piperine decreased the expression of the NGF precursor proNGF and NGF-degrading protease matrix metalloproteinase 9, whereas it increased the expression of proNGF processing enzyme matrix metalloproteinase 7, NGF, and NGF-activated receptor TrkA in the hippocampus of KA-treated rats. Furthermore, KA decreased phosphorylation of the protein kinase B (Akt) and glycogen synthase kinase 3β (GSK3β) in the hippocampus, and piperine reversed these changes. Our data suggest that piperine protects hippocampal neurons against KA-induced excitotoxicity by upregulating the NGF/TrkA/Akt/GSK3β signalling pathways.
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11
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Wang B, Qin Y, Wu Q, Li X, Xie D, Zhao Z, Duan S. mTOR Signaling Pathway Regulates the Release of Proinflammatory Molecule CCL5 Implicated in the Pathogenesis of Autism Spectrum Disorder. Front Immunol 2022; 13:818518. [PMID: 35422816 PMCID: PMC9002353 DOI: 10.3389/fimmu.2022.818518] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Accepted: 03/04/2022] [Indexed: 11/29/2022] Open
Abstract
Autism spectrum disorder (ASD) is a complex pervasive neurodevelopmental disorder and neuroinflammation may contribute to the pathogenesis of ASD. However, the exact mechanisms of abnormal release of proinflammatory mediators in ASD remain poorly understood. This study reports elevated plasma levels of the proinflammatory chemokine (C-C motif) ligand 5 (CCL5) in children with ASD, suggesting an aberrant inflammatory response appearing in the development of ASD. Mining of the expression data of brain or blood tissue from individuals with ASD reveals that mTOR signaling is aberrantly activated in ASD patients. Our in vitro study shows that suppression of mTOR reduces the gene expression and release of CCL5 from human microglia, supporting that CCL5 expression is regulated by mTOR activity. Furthermore, bacterial lipopolysaccharide (LPS)-induced CCL5 expression can be counteracted by siRNA against NF-κB, suggests a determining role of NF-κB in upregulating CCL5 expression. However, a direct regulatory relationship between the NF-κB element and the mTOR signaling pathway was not observed in rapamycin-treated cells. Our results show that the phosphorylated CREB can be induced to suppress CCL5 expression by outcompeting NF-κB in binding to CREB-binding protein (CREBBP) once the mTOR signaling pathway is inhibited. We propose that the activation of mTOR signaling in ASD may induce the suppression of phosphorylation of CREB, which in turn results in the increased binding of CREBBP to NF-κB, a competitor of phosphorylated CREB to drive expression of CCL5. Our study sheds new light on the inflammatory mechanisms of ASD and paves the way for the development of therapeutic strategy for ASD.
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Affiliation(s)
- Baojiang Wang
- Institute of Maternal and Child Medicine, Affiliated Shenzhen Maternity and Child Healthcare Hospital, Southern Medical University, Shenzhen, China.,Laboratory of Medical Genetics, Shenzhen Health Development Research and Data Management Center, Shenzhen, China
| | - Yueyuan Qin
- Institute of Maternal and Child Medicine, Affiliated Shenzhen Maternity and Child Healthcare Hospital, Southern Medical University, Shenzhen, China
| | - Qunyan Wu
- Institute of Maternal and Child Medicine, Affiliated Shenzhen Maternity and Child Healthcare Hospital, Southern Medical University, Shenzhen, China
| | - Xi Li
- Laboratory of Medical Genetics, Shenzhen Health Development Research and Data Management Center, Shenzhen, China
| | - Dongying Xie
- Department of Biology, Faculty of Science, Hong Kong Baptist University, Kowloon Tong, Hong Kong SAR, China
| | - Zhongying Zhao
- Department of Biology, Faculty of Science, Hong Kong Baptist University, Kowloon Tong, Hong Kong SAR, China
| | - Shan Duan
- Institute of Maternal and Child Medicine, Affiliated Shenzhen Maternity and Child Healthcare Hospital, Southern Medical University, Shenzhen, China
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12
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Wang H, Zheng B, Che K, Han X, Li L, Wang H, Liu Y, Shi J, Sun S. Protective effects of safranal on hypoxia/reoxygenation-induced injury in H9c2 cardiac myoblasts via the PI3K/AKT/GSK3β signaling pathway. Exp Ther Med 2021; 22:1400. [PMID: 34675994 PMCID: PMC8524664 DOI: 10.3892/etm.2021.10836] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2021] [Accepted: 09/14/2021] [Indexed: 12/22/2022] Open
Abstract
Safranal (SFR), an active ingredient extracted from saffron, exhibits a protective effect on the cardiovascular system. However, the mechanism of SFR against hypoxia/reoxygenation (H/R)-induced cardiomyocyte injury has previously not been investigated in vitro. The aim of the present study was therefore to observe the protective effects of SFR on H/R-induced cardiomyocyte injury and to explore its mechanisms. A H/R injury model of H9c2 cardiac myoblasts was established by administering 800 µmol/l CoCl2 to H9c2 cells for 24 h and reoxygenating the cells for 4 h to induce hypoxia. H9c2 cardiac myoblasts were pretreated with SFR for 12 h to evaluate the associated protective effects. A Cell Counting Kit-8 assay was used for cell viability detection, and the expression levels of lactate dehydrogenase (LDH), creatine kinase-MB (CK-MB), glutathione peroxidase (GSH-px), catalase (CAT), superoxide dismutase (SOD), malondialdehyde (MDA) and caspase-3, and the intracellular Ca2+ concentration were measured using the corresponding commercial kits. Levels of reactive oxygen species (ROS) in the cells were detected using 2,7-dichlorodihydrofluorescein diacetate. Flow cytometry was used to determine the degree of apoptosis and the level of mitochondrial membrane potential (MMP). Moreover, the expression levels of phosphorylated (p-)PI3K, AKT, p-AKT, glycogen synthase kinase 3β (GSK3β), p-GSK3β, Bcl-2, Bax, caspase-3 and cleaved caspase-3 were measured using western blot analysis. Results of the present study demonstrated that the H9c2 cardiac myoblasts treated with SFR exhibited significantly improved levels of viability and significantly reduced levels of ROS, compared with the H/R group. Furthermore, compared with the H/R group, SFR treatment significantly increased the MMP levels and antioxidant enzyme levels, including CAT, SOD and GSH-px; whereas the levels of CK-MB, LDH, MDA and intracellular Ca2+ concentration were significantly decreased. Moreover, the results of the present study demonstrated that SFR significantly reduced caspase-3, cleaved caspase-3 and Bax protein expression levels, but upregulated the Bcl-2 protein expression levels. SFR also increased the protein expressions of PI3K/AKT/GSK3β. In summary, the results suggested that SFR may exert a protective effect against H/R-induced cardiomyocyte injury, which occurs in connection with the inhibition of oxidative stress and apoptosis via regulation of the PI3K/AKT/GSK3β signaling pathway.
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Affiliation(s)
- Hefei Wang
- Department of Traditional Chinese Medicine and Medical History Literature, School of Basic Medicine, Shijiazhuang, Hebei 050200, P.R. China
| | - Bin Zheng
- Department of Traditional Chinese Medicine, School of Pharmacy, Hebei University of Chinese Medicine, Shijiazhuang, Hebei 050200, P.R. China
| | - Kaimeng Che
- Department of Traditional Chinese Medicine and Medical History Literature, School of Basic Medicine, Shijiazhuang, Hebei 050200, P.R. China
| | - Xue Han
- Department of Traditional Chinese Medicine and Medical History Literature, School of Basic Medicine, Shijiazhuang, Hebei 050200, P.R. China
| | - Li Li
- Department of Pharmacognosy, School of Pharmacy, Hebei Medical University, Shijiazhuang, Hebei 050200, P.R. China
| | - Hongfang Wang
- Department of Traditional Chinese Medicine, School of Pharmacy, Hebei University of Chinese Medicine, Shijiazhuang, Hebei 050200, P.R. China
| | - Yanshuang Liu
- Department of Diagnostics, Hebei Key Laboratory of Integrative Medicine on Liver-Kidney Patterns, Institute of Integrative Medicine, College of Integrative Medicine, Hebei University of Chinese Medicine, Shijiazhuang, Hebei 050200, P.R. China
| | - Jing Shi
- Department of Scientific Research Management, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei 050011, P.R. China
| | - Shijiang Sun
- Department of Hospital Management and Medical History Literature, Hebei Province Hospital of Chinese Medicine, The First Affiliated Hospital, Hebei University of Chinese Medicine, Shijiazhuang, Hebei 050200, P.R. China
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13
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Iarkov A, Mendoza C, Echeverria V. Cholinergic Receptor Modulation as a Target for Preventing Dementia in Parkinson's Disease. Front Neurosci 2021; 15:665820. [PMID: 34616271 PMCID: PMC8488354 DOI: 10.3389/fnins.2021.665820] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2021] [Accepted: 08/26/2021] [Indexed: 12/20/2022] Open
Abstract
Parkinson’s disease (PD) is a neurodegenerative condition characterized by the loss of dopaminergic neurons in the substantia nigra pars compacta (SNpc) in the midbrain resulting in progressive impairment in cognitive and motor abilities. The physiological and molecular mechanisms triggering dopaminergic neuronal loss are not entirely defined. PD occurrence is associated with various genetic and environmental factors causing inflammation and mitochondrial dysfunction in the brain, leading to oxidative stress, proteinopathy, and reduced viability of dopaminergic neurons. Oxidative stress affects the conformation and function of ions, proteins, and lipids, provoking mitochondrial DNA (mtDNA) mutation and dysfunction. The disruption of protein homeostasis induces the aggregation of alpha-synuclein (α-SYN) and parkin and a deficit in proteasome degradation. Also, oxidative stress affects dopamine release by activating ATP-sensitive potassium channels. The cholinergic system is essential in modulating the striatal cells regulating cognitive and motor functions. Several muscarinic acetylcholine receptors (mAChR) and nicotinic acetylcholine receptors (nAChRs) are expressed in the striatum. The nAChRs signaling reduces neuroinflammation and facilitates neuronal survival, neurotransmitter release, and synaptic plasticity. Since there is a deficit in the nAChRs in PD, inhibiting nAChRs loss in the striatum may help prevent dopaminergic neurons loss in the striatum and its pathological consequences. The nAChRs can also stimulate other brain cells supporting cognitive and motor functions. This review discusses the cholinergic system as a therapeutic target of cotinine to prevent cognitive symptoms and transition to dementia in PD.
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Affiliation(s)
- Alexandre Iarkov
- Laboratorio de Neurobiología, Facultad de Ciencias de la Salud, Universidad San Sebastián, Concepción, Chile
| | - Cristhian Mendoza
- Laboratorio de Neurobiología, Facultad de Ciencias de la Salud, Universidad San Sebastián, Concepción, Chile
| | - Valentina Echeverria
- Laboratorio de Neurobiología, Facultad de Ciencias de la Salud, Universidad San Sebastián, Concepción, Chile.,Research & Development Service, Bay Pines VA Healthcare System, Bay Pines, FL, United States
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14
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Natural compounds modulate the autophagy with potential implication of stroke. Acta Pharm Sin B 2021; 11:1708-1720. [PMID: 34386317 PMCID: PMC8343111 DOI: 10.1016/j.apsb.2020.10.018] [Citation(s) in RCA: 48] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Revised: 08/12/2020] [Accepted: 08/21/2020] [Indexed: 12/12/2022] Open
Abstract
Stroke is considered a leading cause of mortality and neurological disability, which puts a huge burden on individuals and the community. To date, effective therapy for stroke has been limited by its complex pathological mechanisms. Autophagy refers to an intracellular degrading process with the involvement of lysosomes. Autophagy plays a critical role in maintaining the homeostasis and survival of cells by eliminating damaged or non-essential cellular constituents. Increasing evidence support that autophagy protects neuronal cells from ischemic injury. However, under certain circumstances, autophagy activation induces cell death and aggravates ischemic brain injury. Diverse naturally derived compounds have been found to modulate autophagy and exert neuroprotection against stroke. In the present work, we have reviewed recent advances in naturally derived compounds that regulate autophagy and discussed their potential application in stroke treatment.
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Key Words
- AD, Alzheimer's disease
- ALS, amyotrophic lateral sclerosis
- AMPK, 5′-adenosine monophosphate-activated protein kinase
- ATF6, activating transcription factor 6
- ATG, autophagy related genes
- Autophagy
- BCL-2, B-cell lymphoma 2
- BNIP3L, BCL2/adenovirus
- COPII, coat protein complex II
- Cerebral ischemia
- ER, endoplasmic reticulum
- FOXO, forkhead box O
- FUNDC1, FUN14 domain containing 1
- GPCR, G-protein coupled receptor
- HD, Huntington's disease
- IPC, ischemic preconditioning
- IRE1, inositol-requiring enzyme 1
- JNK, c-Jun N-terminal kinase
- LAMP, lysosomal-associated membrane protein
- LC3, light chain 3
- LKB1, liver kinase B1
- Lysosomal activation
- Mitochondria
- Mitophagy
- Natural compounds
- Neurological disorders
- Neuroprotection
- OGD/R, oxygen and glucose deprivation-reperfusion
- PD, Parkinson's disease
- PERK, protein kinase R (PKR)-like endoplasmic reticulum kinase
- PI3K, phosphatidylinositol 3-kinase
- ROS, reactive oxygen species
- SQSTM1, sequestosome 1
- TFEB, transcription factor EB
- TIGAR, TP53-induced glycolysis and apoptosis regulator
- ULK, Unc-51- like kinase
- Uro-A, urolithin A
- eIF2a, eukaryotic translation-initiation factor 2
- mTOR, mechanistic target of rapamycin
- ΔΨm, mitochondrial membrane potential
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15
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Ma D, Huang R, Guo K, Zhao Z, Wei W, Gu L, Li L, Zhang L. Cornel Iridoid Glycoside Protects Against STAT1-Dependent Synapse and Memory Deficits by Increasing N-Methyl-D-aspartate Receptor Expression in a Tau Transgenic Mice. Front Aging Neurosci 2021; 13:671206. [PMID: 34113246 PMCID: PMC8185567 DOI: 10.3389/fnagi.2021.671206] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Accepted: 04/13/2021] [Indexed: 12/14/2022] Open
Abstract
P301S transgenic mice are an animal model of tauopathy and Alzheimer’s disease (AD), exhibiting tau pathology and synaptic dysfunction. Cornel iridoid glycoside (CIG) is an active ingredient extracted from Cornus officinalis, a traditional Chinese herb. In the present study, the purpose was to investigate the effects and mechanisms of CIG on tau pathology and synaptic dysfunction using P301S transgenic mice. The results showed that intragastric administration of CIG for 3.5 months improved cognitive impairments and the survival rate of P301S mice. Electrophysiological recordings and transmission electron microscopy study showed that CIG improved synaptic plasticity and increased the ultrastructure and number of synapse. Moreover, CIG increased the expression levels of N-methyl-D-aspartate receptors (NMDAR) subunits GluN1, GluN2A, and GluN2B, and α-amino-3-hydroxy-5-methyl-4-isoxazole propionic acid receptor (AMPAR) subunit GluA1. We inferred that the major mechanism of CIG involving in the regulation of synaptic dysfunctions was inhibiting the activation of Janus kinase-2 (JAK2)/signal transducer and activator of transcription 1 (STAT1) signaling pathway and alleviating STAT1-induced suppression of NMDAR expressions. Based on our findings, we thought CIG might be a promising candidate for the therapy of tauopathy such as AD.
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Affiliation(s)
- Denglei Ma
- Key Laboratory for Neurodegenerative Diseases of Ministry of Education, Department of Pharmacy, Beijing Institute for Brain Disorders, Beijing Engineering Research Center for Nerve System Drugs, National Clinical Research Center for Geriatric Diseases, Xuanwu Hospital of Capital Medical University, Beijing, China
| | - Rui Huang
- Key Laboratory for Neurodegenerative Diseases of Ministry of Education, Department of Pharmacy, Beijing Institute for Brain Disorders, Beijing Engineering Research Center for Nerve System Drugs, National Clinical Research Center for Geriatric Diseases, Xuanwu Hospital of Capital Medical University, Beijing, China
| | - Kaiwen Guo
- Key Laboratory for Neurodegenerative Diseases of Ministry of Education, Department of Pharmacy, Beijing Institute for Brain Disorders, Beijing Engineering Research Center for Nerve System Drugs, National Clinical Research Center for Geriatric Diseases, Xuanwu Hospital of Capital Medical University, Beijing, China
| | - Zirun Zhao
- Renaissance School of Medicine at Stony Brook University, Stony Brook, NY, United States
| | - Weipeng Wei
- Key Laboratory for Neurodegenerative Diseases of Ministry of Education, Department of Pharmacy, Beijing Institute for Brain Disorders, Beijing Engineering Research Center for Nerve System Drugs, National Clinical Research Center for Geriatric Diseases, Xuanwu Hospital of Capital Medical University, Beijing, China
| | - Lihong Gu
- Key Laboratory for Neurodegenerative Diseases of Ministry of Education, Department of Pharmacy, Beijing Institute for Brain Disorders, Beijing Engineering Research Center for Nerve System Drugs, National Clinical Research Center for Geriatric Diseases, Xuanwu Hospital of Capital Medical University, Beijing, China
| | - Lin Li
- Key Laboratory for Neurodegenerative Diseases of Ministry of Education, Department of Pharmacy, Beijing Institute for Brain Disorders, Beijing Engineering Research Center for Nerve System Drugs, National Clinical Research Center for Geriatric Diseases, Xuanwu Hospital of Capital Medical University, Beijing, China
| | - Lan Zhang
- Key Laboratory for Neurodegenerative Diseases of Ministry of Education, Department of Pharmacy, Beijing Institute for Brain Disorders, Beijing Engineering Research Center for Nerve System Drugs, National Clinical Research Center for Geriatric Diseases, Xuanwu Hospital of Capital Medical University, Beijing, China
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16
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Zhan Y, Li MZ, Yang L, Feng XF, Lei JF, Zhang N, Zhao YY, Zhao H. The three-phase enriched environment paradigm promotes neurovascular restorative and prevents learning impairment after ischemic stroke in rats. Neurobiol Dis 2020; 146:105091. [DOI: 10.1016/j.nbd.2020.105091] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Revised: 08/30/2020] [Accepted: 09/21/2020] [Indexed: 02/06/2023] Open
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17
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Hu J, Jin J, Qu Y, Liu W, Ma Z, Zhang J, Chen F. ERO1α inhibits cell apoptosis and regulates steroidogenesis in mouse granulosa cells. Mol Cell Endocrinol 2020; 511:110842. [PMID: 32376276 DOI: 10.1016/j.mce.2020.110842] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/21/2019] [Revised: 04/27/2020] [Accepted: 04/27/2020] [Indexed: 12/30/2022]
Abstract
ER oxidoreduclin 1α (ERO1α), an oxidase that exists in the ER, participates in protein folding and secretion and inhibiting apoptosis, and regulates tumor progression, which is a novel factor of poor cancer prognosis. However, the other physiological functions of ERO1α remain undiscovered. Although our preliminary results of this study indicated that ERO1α revealed the robust expression in ovary, especially in granulosa cells, the role of ERO1α in follicular development is not well known. Therefore, the aims of the present study were to explore the role of ERO1α and the possible mechanisms in regulating cell apoptosis and steroidogenesis in ovarian granulosa cells. ERO1α was mainly localized in granulosa cells and oocytes in the adult ovary by immunohistochemistry. Western blot analysis showed that the expression of ERO1α was highest at oestrous stage during the estrous cycle. The effect of ERO1α on cell apoptosis and steroidogenesis was detected by transduction of ERO1α overexpression and knockdown lentiviruses into primary cultured granulosa cells. Flow cytometry analysis showed that ERO1α decreased granulosa cells apoptosis. Western bolt and RT-qPCR analysis found that ERO1α increased the ratio of BCL-2/BAX, and decreased BAD and Caspase-3 expression. ELISA analysis showed that ERO1α enhanced estrogen (E2) secretion. Western bolt and RT-qPCR analysis found that ERO1α increased StAR, CYP11A1, 3β-HSD, CYP17A1, and CYP19A1 expression, and decreased CYP1B1 expression. Furthermore, Western bolt analysis found that ERO1αincreased PDI and PRDX 4 expression, and activated the PI3K/AKT/mTOR signaling pathway through increasing the phosphorylation of AKT and P70 S6 kinase. In summary, these results suggested that ERO1α might play an anti-apoptotic role and regulate steroidogenesis in granulosa cells, at least partly, via activation of the PI3K/AKT/mTOR signaling pathway.
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Affiliation(s)
- Jiahui Hu
- College of Veterinary Medicine, Yangzhou University, Yangzhou, 225009, Jiangsu, China; Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, 225009, Jiangsu, China
| | - Jiaqi Jin
- College of Veterinary Medicine, Yangzhou University, Yangzhou, 225009, Jiangsu, China; Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, 225009, Jiangsu, China
| | - Yuxing Qu
- College of Veterinary Medicine, Yangzhou University, Yangzhou, 225009, Jiangsu, China
| | - Wanyang Liu
- College of Veterinary Medicine, Yangzhou University, Yangzhou, 225009, Jiangsu, China
| | - Zhiyu Ma
- College of Veterinary Medicine, Yangzhou University, Yangzhou, 225009, Jiangsu, China; Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, 225009, Jiangsu, China
| | - Jinlong Zhang
- College of Veterinary Medicine, Yangzhou University, Yangzhou, 225009, Jiangsu, China; Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, 225009, Jiangsu, China
| | - Fenglei Chen
- College of Veterinary Medicine, Yangzhou University, Yangzhou, 225009, Jiangsu, China; Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, 225009, Jiangsu, China.
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