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Wang L, Li M, Liu B, Zheng R, Zhang X, Yu S. miR-30a-5p mediates ferroptosis of hippocampal neurons in chronic cerebral hypoperfusion-induced cognitive dysfunction by modulating the SIRT1/NRF2 pathway. Brain Res Bull 2024; 212:110953. [PMID: 38636610 DOI: 10.1016/j.brainresbull.2024.110953] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2024] [Revised: 04/07/2024] [Accepted: 04/16/2024] [Indexed: 04/20/2024]
Abstract
OBJECTIVE Chronic cerebral hypoperfusion (CCH) is a common cause of brain dysfunction. As a microRNA (also known as miRNAs or miRs), miR-30a-5p participates in neuronal damage and relates to ferroptosis. We explored the in vivo and in vitro effects and functional mechanism of miR-30a-5p in CCH-triggered cognitive impairment through the silent information regulator 1 (SIRT1)/nuclear factor erythroid 2-related factor 2 (NRF2) pathway. METHODS After 1 month of CCH modeling through bilateral common carotid artery stenosis, mice were injected with 2 μL antagomir (also known as anti-miRNAs) miR-30a-5p, with cognitive function evaluated by Morris water maze and novel object recognition tests. In vitro HT-22 cell oxygen glucose deprivation (OGD) model was established, followed by miR-30a-5p inhibitor and/or si-SIRT1 transfections, with Fe2+ concentration, malonaldehyde (MDA) and glutathione (GSH) contents, reactive oxygen species (ROS), miR-30a-5p and SIRT1 and glutathione peroxidase 4 (GPX4) protein levels, NRF2 nuclear translocation, and miR-30a-5p-SIRT1 targeting relationship assessed. RESULTS CCH-induced mice showed obvious cognitive impairment, up-regulated miR-30a-5p, and down-regulated SIRT1. Ferroptosis occurred in hippocampal neurons, manifested by elevated Fe2+ concentration and ROS and MDA levels, mitochondrial atrophy, and diminished GSH content. Antagomir miR-30a-5p or miR-30a-5p inhibitor promoted SIRT1 expression and NRF2 nuclear translocation, increased GPX4, cell viability and GSH content, and reduced Fe2+ concentration and ROS and MDA levels. miR-30a-5p negatively regulated SIRT1. In vitro, miR-30a-5p knockout increased NRF2 nuclear translocation by up-regulating SIRT1, inhibiting OGD-induced ferroptosis in HT-22 cells. CONCLUSION miR-30a-5p induces hippocampal neuronal ferroptosis and exacerbates post-CCH cognitive dysfunction by targeting SIRT1 and reducing NRF2 nuclear translocation.
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Affiliation(s)
- Lihua Wang
- Department of Neurology, The Second Affiliated Hospital of Harbin Medical University, 246 Xuefu Road, Nangang District, Harbin, Heilongjiang 150086, China.
| | - Mingjie Li
- Department of Neurology, The Second Affiliated Hospital of Harbin Medical University, 246 Xuefu Road, Nangang District, Harbin, Heilongjiang 150086, China
| | - Bing Liu
- Department of Neurology, The Second Affiliated Hospital of Harbin Medical University, 246 Xuefu Road, Nangang District, Harbin, Heilongjiang 150086, China
| | - Ruihan Zheng
- Department of Neurology, The Second Affiliated Hospital of Harbin Medical University, 246 Xuefu Road, Nangang District, Harbin, Heilongjiang 150086, China
| | - Xinyi Zhang
- Department of Neurology, The Second Affiliated Hospital of Harbin Medical University, 246 Xuefu Road, Nangang District, Harbin, Heilongjiang 150086, China
| | - Shuoyi Yu
- Department of Neurology, The Second Affiliated Hospital of Harbin Medical University, 246 Xuefu Road, Nangang District, Harbin, Heilongjiang 150086, China
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Lan H, Dong Z, Zhang M, Li W, Chong C, Wu Y, Wang Z, Liu J, Liu Z, Qin X, Jiang T, Song J. Sinapic acid modulates oxidative stress and metabolic disturbances to attenuate ovarian fibrosis in letrozole-induced polycystic ovary syndrome SD rats. Food Sci Nutr 2024; 12:2917-2931. [PMID: 38628198 PMCID: PMC11016395 DOI: 10.1002/fsn3.3973] [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: 10/04/2023] [Revised: 01/04/2024] [Accepted: 01/09/2024] [Indexed: 04/19/2024] Open
Abstract
Sinapic acid (SA) is renowned for its many pharmacological activities as a polyphenolic compound. The cause of polycystic ovary syndrome (PCOS), a commonly encountered array of metabolic and hormonal abnormalities in females, has yet to be determined. The present experiment was performed to evaluate the antifibrotic properties of SA in rats with letrozole-induced PCOS-related ovarian fibrosis. SA treatment successfully mitigated the changes induced by letrozole in body weight (BW) (p < .01) and relative ovary weight (p < .05). Histological observation revealed that SA reduced the number of atretic and cystic follicles (AFs) and (CFs) (p < .01), as well as ovarian fibrosis, in PCOS rats. Additionally, SA treatment impacted the serum levels of sex hormones in PCOS rats. Luteinizing hormone (LH) and testosterone (T) levels were decreased (p < .01, p < .05), and follicle-stimulating hormone (FSH) levels were increased (p < .05). SA administration also decreased triglyceride (TG) (p < .01) and total cholesterol (TC) levels (p < .05) and increased high-density lipoprotein cholesterol (HDL-C) levels (p < .01), thereby alleviating letrozole-induced metabolic dysfunction in PCOS rats. Furthermore, SA treatment targeted insulin resistance (IR) and increased the messenger RNA (mRNA) levels of antioxidant enzymes in the ovaries of PCOS rats. Finally, SA treatment enhanced the activity of peroxisome proliferator-activated receptor-γ (PPAR-γ), reduced the activation of transforming growth factor-β1 (TGF-β1)/Smads, and decreased collagen I, α-smooth muscle actin (α-SMA), and connective tissue growth factor (CTGF) levels in the ovaries of PCOS rats. These observations suggest that SA significantly ameliorates metabolic dysfunction and oxidative stress and ultimately reduces ovarian fibrosis in rats with letrozole-induced PCOS.
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Affiliation(s)
- Huan Lan
- Guangxi Key Laboratory of Environmental Exposureomics and Entire Lifecycle HealthGuilin Medical UniversityGuilinGuangxiChina
- College of Chinese Material MedicaGuangzhou University of Chinese MedicineGuangzhouGuangzhouChina
| | - Zhe‐Wen Dong
- Guangxi Key Laboratory of Environmental Exposureomics and Entire Lifecycle HealthGuilin Medical UniversityGuilinGuangxiChina
- College of PharmacyShenyang Pharmaceutical UniversityShenyangLiaoningChina
| | - Ming‐Yu Zhang
- Guangxi Key Laboratory of Environmental Exposureomics and Entire Lifecycle HealthGuilin Medical UniversityGuilinGuangxiChina
| | - Wan‐Ying Li
- Guangxi Key Laboratory of Environmental Exposureomics and Entire Lifecycle HealthGuilin Medical UniversityGuilinGuangxiChina
| | - Chao‐Jie Chong
- Guangxi Key Laboratory of Environmental Exposureomics and Entire Lifecycle HealthGuilin Medical UniversityGuilinGuangxiChina
| | - Ya‐Qi Wu
- Guangxi Key Laboratory of Environmental Exposureomics and Entire Lifecycle HealthGuilin Medical UniversityGuilinGuangxiChina
| | - Zi‐Xian Wang
- Guangxi Key Laboratory of Environmental Exposureomics and Entire Lifecycle HealthGuilin Medical UniversityGuilinGuangxiChina
| | - Jun‐Yang Liu
- Guangxi Key Laboratory of Environmental Exposureomics and Entire Lifecycle HealthGuilin Medical UniversityGuilinGuangxiChina
| | - Zhi‐Qiang Liu
- Guangxi Key Laboratory of Environmental Exposureomics and Entire Lifecycle HealthGuilin Medical UniversityGuilinGuangxiChina
| | - Xiao‐Hui Qin
- Guangxi Key Laboratory of Environmental Exposureomics and Entire Lifecycle HealthGuilin Medical UniversityGuilinGuangxiChina
| | - Tie‐Min Jiang
- South Asia Branch of National Engineering Center of Dairy for Maternal and Child HealthGuilin University of TechnologyGuilinGuangxiChina
| | - Jia‐Le Song
- Guangxi Key Laboratory of Environmental Exposureomics and Entire Lifecycle HealthGuilin Medical UniversityGuilinGuangxiChina
- South Asia Branch of National Engineering Center of Dairy for Maternal and Child HealthGuilin University of TechnologyGuilinGuangxiChina
- Department of Obstetrics and Clinical NutritionThe Second Affiliated Hospital of Guilin Medical UniversityGuilinGuangxiChina
- Guangxi Key Laboratory of Health Care Food Science and TechnologyHezhou UniversityHezhouGuangxiChina
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Song J, Li M, Kang N, Jin W, Xiao Y, Li Z, Qi Q, Zhang J, Duan Y, Feng X, Lv P. Baicalein ameliorates cognitive impairment of vascular dementia rats via suppressing neuroinflammation and regulating intestinal microbiota. Brain Res Bull 2024; 208:110888. [PMID: 38295883 DOI: 10.1016/j.brainresbull.2024.110888] [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: 10/16/2023] [Revised: 12/21/2023] [Accepted: 01/22/2024] [Indexed: 02/03/2024]
Abstract
Neuroinflammation induced by chronic cerebral hypoperfusion (CCH) plays a crucial role in the pathophysiologic mechanisms of vascular dementia (VD). A growing body of research has found that intestinal microbiota is associated with a variety of central nervous system disorders and that there is a relationship between intestinal microbiota dysbiosis and cognitive dysfunction and inflammatory responses. Baicalein belongs to the class of flavonoids and has a variety of biological functions, including anti-inflammatory, antioxidant and anti-apoptotic. Baicalein has a significant improvement in memory and learning, and can be used as a potential drug for the protection and treatment of central nervous system disorders. Whether baicalein has an ameliorative effect on cognitive impairment in VD, and whether its mechanism is related to the inhibition of inflammatory response and regulation of intestinal microbiota has not been reported. We used bilateral common carotid artery occlusion (BCCAO) to establish a VD rat model. Morris water maze (MWM) test showed that baicalein improved cognitive dysfunction in VD rats. We applied HE staining, immunofluorescence and ELISA to observe that baicalein treatment significantly improved CCH-induced neuronal damage in the CA1 region of the hippocampus, and reduced glial cell activation and release of pro-inflammatory factors. Western blot showed that baicalein inhibited the activation of the TLR4/MyD88/NF-κB signaling pathway in VD rats. We applied 16 S rDNA sequencing to analyze the composition of the intestinal microbiota. The results showed that baicalein modulated the diversity and composition of the intestinal microbiota, and suppressed the relative abundance of inflammation-associated microbiota in VD rats. In conclusion, this study found that baicalein ameliorated cognitive impairment, attenuated hippocampal inflammatory responses, inhibited the TLR4/MyD88/NF-κB signaling pathway, and modulated intestinal microbiota in VD rats.
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Affiliation(s)
- Jiaxi Song
- Department of Neurology, Hebei Medical University, Shijiazhuang, Hebei, People's Republic of China; Department of Neurology, Hebei General Hospital, Shijiazhuang, Hebei, People's Republic of China; Hebei Provincial Key Laboratory of Cerebral Networks and Cognitive Disorders, Shijiazhuang, Hebei, People's Republic of China
| | - Meixi Li
- Department of Neurology, Hebei General Hospital, Shijiazhuang, Hebei, People's Republic of China; Hebei Provincial Key Laboratory of Cerebral Networks and Cognitive Disorders, Shijiazhuang, Hebei, People's Republic of China
| | - Ning Kang
- Department of Neurology, Hebei General Hospital, Shijiazhuang, Hebei, People's Republic of China; Hebei Provincial Key Laboratory of Cerebral Networks and Cognitive Disorders, Shijiazhuang, Hebei, People's Republic of China
| | - Wei Jin
- Department of Neurology, Hebei General Hospital, Shijiazhuang, Hebei, People's Republic of China; Hebei Provincial Key Laboratory of Cerebral Networks and Cognitive Disorders, Shijiazhuang, Hebei, People's Republic of China
| | - Yining Xiao
- Department of Neurology, Hebei General Hospital, Shijiazhuang, Hebei, People's Republic of China; Hebei Provincial Key Laboratory of Cerebral Networks and Cognitive Disorders, Shijiazhuang, Hebei, People's Republic of China
| | - Zhe Li
- Department of Neurology, Hebei General Hospital, Shijiazhuang, Hebei, People's Republic of China
| | - Qianqian Qi
- Department of Neurology, Hebei Medical University, Shijiazhuang, Hebei, People's Republic of China; Department of Neurology, Hebei General Hospital, Shijiazhuang, Hebei, People's Republic of China; Hebei Provincial Key Laboratory of Cerebral Networks and Cognitive Disorders, Shijiazhuang, Hebei, People's Republic of China
| | - Jiayu Zhang
- Department of Neurology, Hebei General Hospital, Shijiazhuang, Hebei, People's Republic of China; Hebei Provincial Key Laboratory of Cerebral Networks and Cognitive Disorders, Shijiazhuang, Hebei, People's Republic of China
| | - Yaxin Duan
- Department of Neurology, Hebei General Hospital, Shijiazhuang, Hebei, People's Republic of China; Hebei Provincial Key Laboratory of Cerebral Networks and Cognitive Disorders, Shijiazhuang, Hebei, People's Republic of China
| | - Xiaoxiao Feng
- Department of Neurology, Shijiazhuang People's Hospital, Shijiazhuang, Hebei, People's Republic of China
| | - Peiyuan Lv
- Department of Neurology, Hebei Medical University, Shijiazhuang, Hebei, People's Republic of China; Department of Neurology, Hebei General Hospital, Shijiazhuang, Hebei, People's Republic of China; Hebei Provincial Key Laboratory of Cerebral Networks and Cognitive Disorders, Shijiazhuang, Hebei, People's Republic of China.
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Lv S, Wang Q, Zhang X, Ning F, Liu W, Cui M, Xu Y. Mechanisms of multi-omics and network pharmacology to explain traditional chinese medicine for vascular cognitive impairment: A narrative review. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2024; 123:155231. [PMID: 38007992 DOI: 10.1016/j.phymed.2023.155231] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Revised: 11/07/2023] [Accepted: 11/18/2023] [Indexed: 11/28/2023]
Abstract
BACKGROUND The term "vascular cognitive impairment" (VCI) describes various cognitive conditions that include vascular elements. It increases the risk of morbidity and mortality in the elderly population and is the most common cognitive impairment associated with cerebrovascular disease. Understanding the etiology of VCI may aid in identifying approaches to target its possible therapy for the condition. Treatment of VCI has focused on vascular risk factors. There are no authorized conventional therapies available right now. The medications used to treat VCI are solely approved for symptomatic relief and are not intended to prevent or slow the development of VCI. PURPOSE The function of Chinese medicine in treating VCI has not yet been thoroughly examined. This review evaluates the preclinical and limited clinical evidence to comprehend the "multi-component, multi-target, multi-pathway" mechanism of Traditional Chinese medicine (TCM). It investigates the various multi-omics approaches in the search for the pathological mechanisms of VCI, as well as the new research strategies, in the hopes of supplying supportive evidence for the clinical treatment of VCI. METHODS This review used the Preferred Reporting Items for Preferred reporting items for systematic reviews and meta-analyses (PRISMA) statements. Using integrated bioinformatics and network pharmacology approaches, a thorough evaluation and analysis of 25 preclinical studies published up to July 1, 2023, were conducted to shed light on the mechanisms of TCM for vascular cognitive impairment. The studies for the systematic review were located using the following databases: PubMed, Web of Science, Scopus, Cochrane, and ScienceDirect. RESULTS We discovered that the multi-omics analysis approach would hasten the discovery of the role of TCM in the treatment of VCI. It will explore components, compounds, targets, and pathways, slowing the progression of VCI from the perspective of inhibiting oxidative stress, stifling neuroinflammation, increasing cerebral blood flow, and inhibiting iron deposition by a variety of molecular mechanisms, which have significant implications for the treatment of VCI. CONCLUSION TCM is a valuable tool for developing dementia therapies, and further research is needed to determine how TCM components may affect the operation of the neurovascular unit. There are still some limitations, although several research have offered invaluable resources for searching for possible anti-dementia medicines and treatments. To gain new insights into the molecular mechanisms that precisely modulate the key molecules at different levels during pharmacological interventions-a prerequisite for comprehending the mechanism of action and determining the potential therapeutic value of the drugs-further research should employ more standardized experimental methods as well as more sophisticated science and technology. Given the results of this review, we advocate integrating chemical and biological component analysis approaches in future research on VCI to provide a more full and objective assessment of the standard of TCM. With the help of bioinformatics, a multi-omics analysis approach will hasten the discovery of the role of TCM in the treatment of VCI, which has significant implications for the treatment of VCI.
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Affiliation(s)
- Shi Lv
- Department of Rehabilitation, The Second Affiliated Hospital of Shandong First Medical University, Taian 271000, China
| | - Qian Wang
- Department of Central Laboratory, The Affiliated Taian City Central Hospital of Qingdao University, Taian 271000, China
| | - Xinlei Zhang
- Department of Rehabilitation, The Second Affiliated Hospital of Shandong First Medical University, Taian 271000, China
| | - Fangli Ning
- Department of Rehabilitation, The Second Affiliated Hospital of Shandong First Medical University, Taian 271000, China
| | - Wenxin Liu
- Department of Rehabilitation, The Second Affiliated Hospital of Shandong First Medical University, Taian 271000, China
| | - Mengmeng Cui
- Department of Rehabilitation, The Second Affiliated Hospital of Shandong First Medical University, Taian 271000, China
| | - Yuzhen Xu
- Department of Rehabilitation, The Second Affiliated Hospital of Shandong First Medical University, Taian 271000, China.
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Zhou HQ, Zhang LM, Li X, Huang ZH. Crosstalk Between Autophagy and Inflammation in Chronic Cerebral Ischaemia. Cell Mol Neurobiol 2023:10.1007/s10571-023-01336-6. [PMID: 36952071 DOI: 10.1007/s10571-023-01336-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Accepted: 03/04/2023] [Indexed: 03/24/2023]
Abstract
Chronic cerebral ischaemia (CCI) is a high-incidence cardiovascular and cerebrovascular disease that is very common in clinical practice. Although many pathogenic mechanisms have been explored, there is still great controversy among neuroscientists regarding the pathogenesis of CCI. Therefore, it is important to elucidate the mechanisms of CCI occurrence and progression for the prevention and treatment of ischaemic cerebrovascular disorders. Autophagy and inflammation play vital roles in CCI, but the relationship between these two processes in this disease remains unknown. Here, we review the progression and discuss the functions, actions and pathways of autophagy and inflammation in CCI, including a comprehensive view of the transition from acute disease to CCI through ischaemic repair mechanisms. This review may provide a reference for future research and treatment of CCI. Schematic diagram of the interplay between autophagy and inflammation in CCI. CCI lead to serious, life-threatening complications. This review summarizes two factors in CCI, including autophagy and inflammation, which have been focused for the mechanisms of CCI. In short, the possible points of intersection are shown in the illustration. CCI, Chronic cerebral ischaemia; ER stress, Endoplasmic reticulum stress; ROS, Reactive oxygen species.
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Affiliation(s)
- Hai-Qian Zhou
- Key Laboratory of Prevention and Treatment of Cardiovascular and Cerebrovascular Diseases of Ministry of Education, Gannan Medical University, 1st Hexie Road, Ganzhou, 341000, China
- Ganzhou Key Laboratory of Neuroinflammation Research, Gannan Medical University, 1st Hexie Road, Ganzhou, 341000, China
| | - Li-Mei Zhang
- Key Laboratory of Prevention and Treatment of Cardiovascular and Cerebrovascular Diseases of Ministry of Education, Gannan Medical University, 1st Hexie Road, Ganzhou, 341000, China
- Department of Physiology, School of Basic Medical Sciences, Gannan Medical University, 1st Hexie Road, Ganzhou, 341000, China
- Ganzhou Key Laboratory of Neuroinflammation Research, Gannan Medical University, 1st Hexie Road, Ganzhou, 341000, China
| | - Xiao Li
- Key Laboratory of Prevention and Treatment of Cardiovascular and Cerebrovascular Diseases of Ministry of Education, Gannan Medical University, 1st Hexie Road, Ganzhou, 341000, China.
- Department of Physiology, School of Basic Medical Sciences, Gannan Medical University, 1st Hexie Road, Ganzhou, 341000, China.
- Ganzhou Key Laboratory of Neuroinflammation Research, Gannan Medical University, 1st Hexie Road, Ganzhou, 341000, China.
| | - Zhi-Hua Huang
- Key Laboratory of Prevention and Treatment of Cardiovascular and Cerebrovascular Diseases of Ministry of Education, Gannan Medical University, 1st Hexie Road, Ganzhou, 341000, China.
- Department of Physiology, School of Basic Medical Sciences, Gannan Medical University, 1st Hexie Road, Ganzhou, 341000, China.
- Ganzhou Key Laboratory of Neuroinflammation Research, Gannan Medical University, 1st Hexie Road, Ganzhou, 341000, China.
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Therapeutic potential of natural molecules against Alzheimer's disease via SIRT1 modulation. Biomed Pharmacother 2023; 161:114474. [PMID: 36878051 DOI: 10.1016/j.biopha.2023.114474] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2023] [Revised: 03/01/2023] [Accepted: 03/02/2023] [Indexed: 03/06/2023] Open
Abstract
Alzheimer's disease (AD) is a neurodegenerative disease mainly characterized by progressive cognitive dysfunction and memory impairment. Recent studies have shown that regulating silent information regulator 1 (SIRT1) expression has a significant neuroprotective effect, and SIRT1 may become a new therapeutic target for AD. Natural molecules are an important source of drug development for use in AD therapy and may regulate a wide range of biological events by regulating SIRT1 as well as other SIRT1-mediated signaling pathways. This review aims to summarize the correlation between SIRT1 and AD and to identify in vivo and in vitro studies investigating the anti-AD properties of natural molecules as modulators of SIRT1 and SIRT1-mediated signaling pathways. A literature search was conducted for studies published between January 2000 and October 2022 using various literature databases, including Web of Science, PubMed, Google Scholar, Science Direct, and EMBASE. Natural molecules, such as resveratrol, quercetin, icariin, bisdemethoxycurcumin, dihydromyricetin, salidroside, patchouli, sesamin, rhein, ligustilide, tetramethoxyflavanone, 1-theanine, schisandrin, curcumin, betaine, pterostilbene, ampelopsin, schisanhenol, and eriodictyol, have the potential to modulate SIRT1 and SIRT1 signaling pathways, thereby combating AD. The natural molecules modulating SIRT1 discussed in this review provide a potentially novel multi-mechanistic therapeutic strategy for AD. However, future clinical trials need to be conducted to further investigate their beneficial properties and to determine the safety and efficacy of SIRT1 natural activators against AD.
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Wang Z, Li T, Du M, Zhang L, Xu L, Song H, Zhang J. β-hydroxybutyrate improves cognitive impairment caused by chronic cerebral hypoperfusion via amelioration of neuroinflammation and blood-brain barrier damage. Brain Res Bull 2023; 193:117-130. [PMID: 36577190 DOI: 10.1016/j.brainresbull.2022.12.011] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Revised: 12/23/2022] [Accepted: 12/25/2022] [Indexed: 12/27/2022]
Abstract
BACKGROUND Vascular cognitive impairment (VCI) is the second most common type of dementia after Alzheimer's disease (AD) in elderly people. Chronic cerebral hypoperfusion (CCH) is the early pathophysiological basis of VCI. β-Hydroxybutyrate (BHB) is one of the important components of ketone bodies, an intermediate product of endogenous energy metabolism, which can mitigate neuroinflammation in stroke and neurodegenerative diseases. The present study aimed to investigate whether BHB can improve cognitive impairment caused by CCH and the underlying mechanism. METHODS The CCH model was established by permanent bilateral common carotid artery occlusion (2VO). CCH rats were intraperitoneally injected with BHB (1.5 mmol/kg/d) every day for 8 consecutive weeks from 2 weeks before surgery. The hippocampal blood flow of rats was measured by using a laser Doppler velocimetry. Used the Morris water maze test (MWM) to assess spatial learning and memory of rats, and harvested brain tissues for molecular, biochemical, and pathological tests. RESULTS We found that BHB intervention for 8 weeks could effectively restore hippocampal blood flow and improve spatial learning and memory in CCH rats. BHB can protect the blood-brain barrier (BBB), as manifested by reducing the ultrastructural damage and leakage of the BBB, restoring the expression of tight junction-related proteins and reducing the expression of Matrix Metalloproteinases-9 (MMP-9). Additionally, after BHB intervention, microglia activation was reduced, oligodendrocyte motility was active, and the expression levels of pro-inflammatory factors such as tumor necrosis factor (TNF-α), interleukin-1β (IL-1β), nuclear factor-κB (NF-κB) and advanced glycation end-products (RAGE) were lower, which also indicated that BHB had a beneficial effect in mitigating neuroinflammation. CONCLUSION BHB can improve the cognitive impairment caused by CCH. The potential mechanisms of BHB may be through reducing neuroinflammation and protecting BBB.
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Affiliation(s)
- Zhitian Wang
- Department of Neurology, Zhongnan Hospital, Wuhan University, No.169, Donghu Road, Wuhan, Hubei 430071, China.
| | - Tian Li
- Department of Neurology, Zhongnan Hospital, Wuhan University, No.169, Donghu Road, Wuhan, Hubei 430071, China.
| | - Miaoyu Du
- Department of Neurology, Zhongnan Hospital, Wuhan University, No.169, Donghu Road, Wuhan, Hubei 430071, China.
| | - Lei Zhang
- Department of Neurology, Zhongnan Hospital, Wuhan University, No.169, Donghu Road, Wuhan, Hubei 430071, China.
| | - Linling Xu
- Department of Neurology, Zhongnan Hospital, Wuhan University, No.169, Donghu Road, Wuhan, Hubei 430071, China.
| | - Hao Song
- Department of Neurology, Zhongnan Hospital, Wuhan University, No.169, Donghu Road, Wuhan, Hubei 430071, China.
| | - Junjian Zhang
- Department of Neurology, Zhongnan Hospital, Wuhan University, No.169, Donghu Road, Wuhan, Hubei 430071, China.
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Surya K, Manickam N, Jayachandran KS, Kandasamy M, Anusuyadevi M. Resveratrol Mediated Regulation of Hippocampal Neuroregenerative Plasticity via SIRT1 Pathway in Synergy with Wnt Signaling: Neurotherapeutic Implications to Mitigate Memory Loss in Alzheimer's Disease. J Alzheimers Dis 2023; 94:S125-S140. [PMID: 36463442 PMCID: PMC10473144 DOI: 10.3233/jad-220559] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Alzheimer's disease (AD) is a major form of dementia. Abnormal amyloidogenic event-mediated degeneration of cholinergic neurons in the cognitive centers of the brain has been attributed to neuropathological sequelae and behavioral deficits in AD. Besides, impaired adult neurogenesis in the hippocampus has experimentally been realized as an underlying cause of dementia regardless of neurodegeneration. Therefore, nourishing the neurogenic process in the hippocampus has been considered an effective therapeutic strategy to mitigate memory loss. In the physiological state, the Wnt pathway has been identified as a potent mitogenic generator in the hippocampal stem cell niche. However, downstream components of Wnt signaling have been noticed to be downregulated in AD brains. Resveratrol (RSV) is a potent Sirtuin1 (SIRT1) enhancer that facilitates neuroprotection and promotes neurogenesis in the hippocampus of the adult brain. While SIRT1 is an important positive regulator of Wnt signaling, ample reports indicate that RSV treatment strongly mediates the fate determination of stem cells through Wnt signaling. However, the possible therapeutic roles of RSV-mediated SIRT1 enhancement on the regulation of hippocampal neurogenesis and reversal of memory loss through the Wnt signaling pathway have not been addressed yet. Taken together, this review describes RSV-mediated effects on the regulation of hippocampal neurogenesis via the activation of SIRT1 in synergy with the Wnt signaling. Further, the article emphasizes a hypothesis that RSV treatment can provoke the activation of quiescent neural stem cells and prime their neurogenic capacity in the hippocampus via Wnt signaling in AD.
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Affiliation(s)
- Kumar Surya
- Department of Biochemistry, Molecular Neuro-gerontology Laboratory, School of Life Sciences, Bharathidasan University, Tiruchirappalli, Tamil Nadu, India
| | - Nivethitha Manickam
- Department of Animal Science, Laboratory of Stem Cells and Neuroregeneration, School of Life Sciences, Bharathidasan University, Tiruchirappalli, Tamil Nadu, India
| | - Kesavan Swaminathan Jayachandran
- Department of Bioinformatics, Molecular Cardiology and Drug Discovery Laboratory, School of Life Sciences, Bharathidasan University, Tiruchirappalli, Tamil Nadu, India
| | - Mahesh Kandasamy
- Department of Animal Science, Laboratory of Stem Cells and Neuroregeneration, School of Life Sciences, Bharathidasan University, Tiruchirappalli, Tamil Nadu, India
- University Grants Commission-Faculty Recharge Programme (UGC-FRP), New Delhi, India
| | - Muthuswamy Anusuyadevi
- Department of Biochemistry, Molecular Neuro-gerontology Laboratory, School of Life Sciences, Bharathidasan University, Tiruchirappalli, Tamil Nadu, India
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Su SH, Wu YF, Lin Q, Zhang L, Wang DP, Hai J. Fecal microbiota transplantation and replenishment of short-chain fatty acids protect against chronic cerebral hypoperfusion-induced colonic dysfunction by regulating gut microbiota, differentiation of Th17 cells, and mitochondrial energy metabolism. J Neuroinflammation 2022; 19:313. [PMID: 36567333 PMCID: PMC9791754 DOI: 10.1186/s12974-022-02675-9] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Accepted: 12/17/2022] [Indexed: 12/27/2022] Open
Abstract
BACKGROUND Little is known about the association between gut microbiota and intestinal injury under a state of chronic cerebral hypoperfusion (CCH). Here, the effects of gut microbiota and short-chain fatty acids (SCFAs), as important metabolic products, on intestinal function and potential mechanisms after CCH were investigated. METHODS Rats were subjected to bilateral common carotid artery occlusion (BCCAo) to induce CCH. The gut microbiota and metabolites of SCFAs were assessed by 16S rRNA sequencing and targeted metabolomics, respectively. Transcriptomic analysis of colon tissues was also conducted. Subsequently, potential molecular pathways and differentially expressed genes were verified by western blot, immunoprecipitation, and immunofluorescence analyses. Furthermore, the integrity of the colonic barrier was evaluated by hematoxylin and eosin and mucin 2 staining and expression levels of tight junction proteins. Besides, colonic inflammation was further assessed by flow cytometry and expression levels of inflammatory cytokines. In addition, colonic mitochondrial dysfunction was analyzed via membrane potential, reactive oxygen species, electron transport chain (ETC) activities, adenosine triphosphate content, and mitochondrial ultrastructure. RESULTS CCH modified gut microbial composition and microbial metabolism of SCFAs, which may be associated with inhibition of mitochondrial ETC activities and oxidative phosphorylation, leading to dysregulation of mitochondrial energy metabolism. Furthermore, CCH induced differentiation of pathogenic Th17 cells, promoted the formation of complexes of interferon regulatory factor 4 and signal transducer and activator of transcription 3 (STAT3), and increased the phosphorylation of STAT3. This was associated with an impairment of colonic barrier function and chronic colonic inflammation. In contrast, FMT and SCFA replenishment ameliorated CCH-induced gut microbial dysbiosis by increasing the intestinal content of Ruminococcus_sp_N15_MGS_57 and modulating microbial metabolism of SCFAs by increasing acetic acid contents associated with an improvment of the balance between Tregs and Th17 cells, mitochondrial ETC activities, and oxidative phosphorylation to prevent colonic inflammation and dysregulation of mitochondrial energy metabolism. CONCLUSION These findings indicate that FMT and SCFA replenishment present a promising therapeutic strategy against colonic dysfunction under a state of chronic cerebral ischemia.
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Affiliation(s)
- Shao-Hua Su
- grid.24516.340000000123704535Department of Neurosurgery, School of Medicine, Tongji Hospital, Tongji University, 389 Xincun Road, Shanghai, 200065 China
| | - Yi-Fang Wu
- grid.24516.340000000123704535Department of Neurosurgery, School of Medicine, Tongji Hospital, Tongji University, 389 Xincun Road, Shanghai, 200065 China
| | - Qi Lin
- grid.16821.3c0000 0004 0368 8293Department of Pharmacy, School of Medicine, Institutes of Medical Sciences, Shanghai Jiao Tong University, Shanghai, 200025 China
| | - Lin Zhang
- grid.16821.3c0000 0004 0368 8293Department of Neurosurgery, School of Medicine, Shanghai Sixth People’s Hospital, Shanghai Jiao Tong University, Shanghai, 200003 China
| | - Da-Peng Wang
- grid.24516.340000000123704535Department of Neurosurgery, School of Medicine, Tongji Hospital, Tongji University, 389 Xincun Road, Shanghai, 200065 China
| | - Jian Hai
- grid.24516.340000000123704535Department of Neurosurgery, School of Medicine, Tongji Hospital, Tongji University, 389 Xincun Road, Shanghai, 200065 China
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10
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Ligustilide Improves Cognitive Impairment via Regulating the SIRT1/IRE1α/XBP1s/CHOP Pathway in Vascular Dementia Rats. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022; 2022:6664990. [PMID: 36017237 PMCID: PMC9398841 DOI: 10.1155/2022/6664990] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Revised: 07/20/2022] [Accepted: 07/29/2022] [Indexed: 11/24/2022]
Abstract
Vascular dementia (VaD), the second cause of dementia, is caused by chronic cerebral hypoperfusion, producing progressive damage to cerebral cortex, hippocampus, and white matter. Ligustilide (LIG), one of the main active ingredients of Angelica sinensis, exerts the neuroprotective effect on neurodegenerative diseases. However, the mechanism remains unclear. An in vivo model of bilateral common carotid artery occlusion and in vitro model of oxygen glucose deprivation (OGD) were employed in this study. LIG (20 or 40 mg/kg/day) was intragastrically administered to the VaD rats for four weeks. The results of the Morris water maze test demonstrated that LIG effectively ameliorated learning and memory deficiency in VaD rats. LIG obviously relieved neuronal oxidative stress damage by increasing the activities of catalase (CAT), superoxide dismutase (SOD), and glutathione peroxidase (GSH-PX) and decreasing the level of malondialdehyde (MDA) in VaD rats. Nissl staining showed that LIG increased the number of the Nissl body in VaD rats. After LIG administration, the apoptotic-related protein, Bax, was decreased and Bcl-2 was increased in the hippocampus of VaD rats. Moreover, the expressions of sirtuin 1 (SIRT1) and protein disulfide isomerase (PDI) were decreased, binding immunoglobulin protein (BIP) and phospho-inositol-requiring enzyme-1α (P-IRE1α), X-box binding protein 1 (XBP1s), and C/EBP-homologous protein (CHOP) were increased in VaD rats. After LIG treatment, these changes were reversed. The immunofluorescence results further showed that LIG upregulated the expression of SIRT1 and downregulated the expression of P-IRE1α in VaD rats. In addition, in vitro experiment showed that EX-527 (SIRT1 inhibitor) partly abolished the inhibitory effect of LIG on the IRE1α/XBP1s/CHOP pathway. In conclusion, these studies indicated that LIG could improve cognitive impairment by regulating the SIRT1/IRE1α/XBP1s/CHOP pathway in VaD rats.
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11
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Maresin 1 improves cognitive decline and ameliorates inflammation and blood-brain barrier damage in rats with chronic cerebral hypoperfusion. Brain Res 2022; 1788:147936. [DOI: 10.1016/j.brainres.2022.147936] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Revised: 04/25/2022] [Accepted: 05/01/2022] [Indexed: 11/20/2022]
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12
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Wang R, Wu Y, Liu R, Liu M, Li Q, Ba Y, Huang H. Deciphering therapeutic options for neurodegenerative diseases: insights from SIRT1. J Mol Med (Berl) 2022; 100:537-553. [PMID: 35275221 DOI: 10.1007/s00109-022-02187-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Revised: 03/01/2022] [Accepted: 03/03/2022] [Indexed: 12/23/2022]
Abstract
Silent information regulator 1 (SIRT1) is a nicotinamide adenine dinucleotide (NAD +)-dependent protein deacetylase that exerts biological effects through nucleoplasmic transfer. Recent studies have highlighted that SIRT1 deacetylates protein substrates to exert its neuroprotective effects, including decreased oxidative stress and inflammatory, increases autophagy, increases levels of nerve growth factors (correlated with behavioral changes), and maintains neural integrity (affects neuronal development and function) in aging or neurological disorder. In this review, we highlight the molecular mechanisms underlying the protective role of SIRT1 in modulating neurodegeneration, focusing on protein homeostasis, aging-related signaling pathways, neurogenesis, and synaptic plasticity. Meanwhile, the potential of targeting SIRT1 to block the occurrence and progression of neurodegenerative diseases is also discussed. Taken together, this review provides an up-to-date evaluation of our current understanding of the neuroprotective mechanisms of SIRT1 and also be involved in the potential therapeutic opportunities of AD and related neurodegenerative diseases.
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Affiliation(s)
- Ruike Wang
- Department of Environmental Health, College of Public Health, Zhengzhou University, No.100 Kexue Avenue, Henan province, Zhengzhou, 450001, China.,Environment and Health Innovation Team, College of Public Health, Zhengzhou University, Henan province, Zhengzhou, 450001, China
| | - Yingying Wu
- Department of Environmental Health, College of Public Health, Zhengzhou University, No.100 Kexue Avenue, Henan province, Zhengzhou, 450001, China.,Environment and Health Innovation Team, College of Public Health, Zhengzhou University, Henan province, Zhengzhou, 450001, China
| | - Rundong Liu
- Department of Environmental Health, College of Public Health, Zhengzhou University, No.100 Kexue Avenue, Henan province, Zhengzhou, 450001, China.,Environment and Health Innovation Team, College of Public Health, Zhengzhou University, Henan province, Zhengzhou, 450001, China
| | - Mengchen Liu
- Department of Environmental Health, College of Public Health, Zhengzhou University, No.100 Kexue Avenue, Henan province, Zhengzhou, 450001, China.,Environment and Health Innovation Team, College of Public Health, Zhengzhou University, Henan province, Zhengzhou, 450001, China
| | - Qiong Li
- Department of Environmental Health, College of Public Health, Zhengzhou University, No.100 Kexue Avenue, Henan province, Zhengzhou, 450001, China.,Environment and Health Innovation Team, College of Public Health, Zhengzhou University, Henan province, Zhengzhou, 450001, China
| | - Yue Ba
- Department of Environmental Health, College of Public Health, Zhengzhou University, No.100 Kexue Avenue, Henan province, Zhengzhou, 450001, China.,Environment and Health Innovation Team, College of Public Health, Zhengzhou University, Henan province, Zhengzhou, 450001, China
| | - Hui Huang
- Department of Environmental Health, College of Public Health, Zhengzhou University, No.100 Kexue Avenue, Henan province, Zhengzhou, 450001, China. .,Environment and Health Innovation Team, College of Public Health, Zhengzhou University, Henan province, Zhengzhou, 450001, China.
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Hyperoside Attenuate Inflammation in HT22 Cells via Upregulating SIRT1 to Activities Wnt/ β-Catenin and Sonic Hedgehog Pathways. Neural Plast 2021; 2021:8706400. [PMID: 34221003 PMCID: PMC8213468 DOI: 10.1155/2021/8706400] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2021] [Accepted: 06/03/2021] [Indexed: 02/05/2023] Open
Abstract
Neuroinflammation plays important roles in the pathogenesis and progression of altered neurodevelopment, sensorineural hearing loss, and certain neurodegenerative diseases. Hyperoside (quercetin-3-O-β-D-galactoside) is an active compound isolated from Hypericum plants. In this study, we investigate the protective effect of hyperoside on neuroinflammation and its possible molecular mechanism. Lipopolysaccharide (LPS) and hyperoside were used to treat HT22 cells. The cell viability was measured by MTT assay. The cell apoptosis rate was measured by flow cytometry assay. The mRNA expression levels of interleukin-1β (IL-1β), interleukin-6 (IL-6), interleukin-8 (IL-8), and tumor necrosis factor-α (TNF-α) were determined by quantitative reverse transcription polymerase chain reaction. The levels of oxidative stress indices superoxide dismutase (SOD), reactive oxygen species (ROS), catalase (CAT), glutathione (GSH), and malondialdehyde (MDA) were measured by the kits. The expression of neurotrophic factor and the relationship among hyperoside, silent mating type information regulation 2 homolog-1 (SIRT1) and Wnt/β-catenin, and sonic hedgehog was examined by western blotting. In the LPS-induced HT22 cells, hyperoside promotes cell survival; alleviates the level of IL-1β, IL-6, IL-8, TNF-α, ROS, MDA, Bax, and caspase-3; and increases the expression of CAT, SOD, GSH, Bcl-2, BDNF, TrkB, and NGF. In addition, hyperoside upregulated the expression of SIRT1. Further mechanistic investigation showed that hyperoside alleviated LPS-induced inflammation, oxidative stress, and apoptosis by upregulating SIRT1 to activate Wnt/β-catenin and sonic hedgehog pathways. Taken together, our data suggested that hyperoside acts as a protector in neuroinflammation.
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