1
|
Zhao Y, Li T, Jiang Z, Gai C, Yu S, Xin D, Li T, Liu D, Wang Z. The miR-9-5p/CXCL11 pathway is a key target of hydrogen sulfide-mediated inhibition of neuroinflammation in hypoxic ischemic brain injury. Neural Regen Res 2024; 19:1084-1094. [PMID: 37862212 PMCID: PMC10749591 DOI: 10.4103/1673-5374.382860] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Revised: 11/05/2022] [Accepted: 07/11/2023] [Indexed: 10/22/2023] Open
Abstract
We previously showed that hydrogen sulfide (H2S) has a neuroprotective effect in the context of hypoxic ischemic brain injury in neonatal mice. However, the precise mechanism underlying the role of H2S in this situation remains unclear. In this study, we used a neonatal mouse model of hypoxic ischemic brain injury and a lipopolysaccharide-stimulated BV2 cell model and found that treatment with L-cysteine, a H2S precursor, attenuated the cerebral infarction and cerebral atrophy induced by hypoxia and ischemia and increased the expression of miR-9-5p and cystathionine β synthase (a major H2S synthetase in the brain) in the prefrontal cortex. We also found that an miR-9-5p inhibitor blocked the expression of cystathionine β synthase in the prefrontal cortex in mice with brain injury caused by hypoxia and ischemia. Furthermore, miR-9-5p overexpression increased cystathionine-β-synthase and H2S expression in the injured prefrontal cortex of mice with hypoxic ischemic brain injury. L-cysteine decreased the expression of CXCL11, an miR-9-5p target gene, in the prefrontal cortex of the mouse model and in lipopolysaccharide-stimulated BV-2 cells and increased the levels of proinflammatory cytokines BNIP3, FSTL1, SOCS2 and SOCS5, while treatment with an miR-9-5p inhibitor reversed these changes. These findings suggest that H2S can reduce neuroinflammation in a neonatal mouse model of hypoxic ischemic brain injury through regulating the miR-9-5p/CXCL11 axis and restoring β-synthase expression, thereby playing a role in reducing neuroinflammation in hypoxic ischemic brain injury.
Collapse
Affiliation(s)
- Yijing Zhao
- Department of Physiology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong Province, China
| | - Tong Li
- Department of Neurosurgery, Qingdao Municipal Hospital, Qingdao, Shandong Province, China
| | - Zige Jiang
- Department of Physiology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong Province, China
| | - Chengcheng Gai
- Department of Physiology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong Province, China
| | - Shuwen Yu
- Department of Medical Psychology and Ethics, School of Basic Medicine Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong Province, China
| | - Danqing Xin
- Department of Physiology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong Province, China
| | - Tingting Li
- Department of Physiology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong Province, China
| | - Dexiang Liu
- Department of Medical Psychology and Ethics, School of Basic Medicine Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong Province, China
| | - Zhen Wang
- Department of Physiology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong Province, China
- Key Laboratory of Birth Regulation and Control Technology of National Health Commission of China, Maternal and Child Health Care Hospital of Shandong Province Affiliated to Qingdao University, Jinan, Shandong Province, China
| |
Collapse
|
2
|
Jiang Z, Wang W, Zhao Y, Li T, Xin D, Gai C, Liu D, Wang Z. Mitochondria-targeted cerium vanadate nanozyme suppressed hypoxia-ischemia injury in neonatal mice via intranasal administration. J Control Release 2024; 365:1074-1088. [PMID: 38101752 DOI: 10.1016/j.jconrel.2023.12.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Revised: 12/06/2023] [Accepted: 12/08/2023] [Indexed: 12/17/2023]
Abstract
Oxidative stress is a major obstacle for neurological functional recovery after hypoxia-ischemia (HI) brain damage. Nanozymes with robust anti-oxidative stress properties offer a therapeutic option for HI injury. However, insufficiency of nanozyme accumulation in the HI brain by noninvasive administration hinders their application. Herein, we reported a cerium vanadate (CeVO4) nanozyme to realize a noninvasive therapy for HI brain in neonatal mice by targeting brain neuron mitochondria. CeVO4 nanozyme with superoxide dismutase activity mainly co-located with neuronal mitochondria 1 h after administration. Pre- and post-HI administrations of CeVO4 nanozyme were able to attenuate acute brain injury, by inhibiting caspase-3 activation, microglia activation, and proinflammation cytokine production in the lesioned cortex 2 d after HI injury. Moreover, CeVO4 nanozyme administration led to short- and long-term functional recovery following HI insult without any potential toxicities in peripheral organs of mice even after prolonged delivery for 4 weeks. These beneficial effects of CeVO4 nanozyme were associated with suppressed oxidative stress and up-regulated nuclear factor erythroid-2-related factor 2 (Nrf2) expression. Finally, we found that Nrf2 inhibition with ML385 abolished the protective effects of CeVO4 nanozyme on HI injury. Collectively, this strategy may provide an applicative perspective for CeVO4 nanozyme therapy in HI brain damage via noninvasive delivery.
Collapse
Affiliation(s)
- Zige Jiang
- Department of Physiology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, PR China
| | - Wenhan Wang
- State Key Laboratory of Crystal Materials, Shandong University, 27 Shanda Nanlu, Jinan, Shandong 250100, PR China
| | - Yijing Zhao
- Department of Physiology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, PR China
| | - Tingting Li
- Department of Physiology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, PR China
| | - Danqing Xin
- Department of Physiology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, PR China
| | - Chengcheng Gai
- Department of Physiology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, PR China
| | - Dexiang Liu
- Department of Medical Psychology and Ethics, School of Basic Medicine Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, PR China.
| | - Zhen Wang
- Department of Physiology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, PR China.
| |
Collapse
|
3
|
Shaposhnikov MV, Gorbunova AA, Zemskaya NV, Ulyasheva NS, Pakshina NR, Yakovleva DV, Moskalev A. Simultaneous activation of the hydrogen sulfide biosynthesis genes (CBS and CSE) induces sex-specific geroprotective effects in Drosophila melanogaster. Biogerontology 2023; 24:275-292. [PMID: 36662374 DOI: 10.1007/s10522-023-10017-2] [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: 10/06/2022] [Accepted: 01/11/2023] [Indexed: 01/21/2023]
Abstract
Hydrogen sulfide (H2S) is one of the most important gasotransmitters that affect lifespan and provide resistance to adverse environmental conditions. Here we investigated geroprotective effects of the individual and simultaneous overexpression of genes encoding key enzymes of H2S biosynthesis - cystathionine-β-synthase (CBS) and cystathionine-γ-lyase (CSE) on D. melanogaster model. Simultaneous overexpression of CBS and CSE resulted in additive (in males) and synergistic (in females) beneficial effects on median lifespan. Individual overexpression of CBS was associated with increased thermotolerance and decreased transcription level of genes encoding stress-responsive transcription factors HIF1 and Hsf, while individual overexpression of CSE was associated with increased resistance to paraquat. Simultaneous overexpression of both genes increased resistance to hyperthermia in old females or paraquat in old males. The obtained results suggest sex-specific epistatic interaction of CBS and CSE overexpression effects on longevity and stress resistance.
Collapse
Affiliation(s)
- Mikhail V Shaposhnikov
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow, Russian Federation, 119991
- Institute of Biology of Komi Science Center of Ural Branch of RAS, Syktyvkar, Russian Federation, 167982
| | - Anastasia A Gorbunova
- Institute of Biology of Komi Science Center of Ural Branch of RAS, Syktyvkar, Russian Federation, 167982
| | - Nadezhda V Zemskaya
- Institute of Biology of Komi Science Center of Ural Branch of RAS, Syktyvkar, Russian Federation, 167982
| | - Natalia S Ulyasheva
- Institute of Biology of Komi Science Center of Ural Branch of RAS, Syktyvkar, Russian Federation, 167982
| | - Natalya R Pakshina
- Institute of Biology of Komi Science Center of Ural Branch of RAS, Syktyvkar, Russian Federation, 167982
| | - Daria V Yakovleva
- Institute of Biology of Komi Science Center of Ural Branch of RAS, Syktyvkar, Russian Federation, 167982
| | - Alexey Moskalev
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow, Russian Federation, 119991.
- Institute of Biology of Komi Science Center of Ural Branch of RAS, Syktyvkar, Russian Federation, 167982.
| |
Collapse
|
4
|
Huang Y, Omorou M, Gao M, Mu C, Xu W, Xu H. Hydrogen sulfide and its donors for the treatment of cerebral ischaemia-reperfusion injury: A comprehensive review. Biomed Pharmacother 2023; 161:114506. [PMID: 36906977 DOI: 10.1016/j.biopha.2023.114506] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Revised: 03/06/2023] [Accepted: 03/07/2023] [Indexed: 03/12/2023] Open
Abstract
As an endogenous gas signalling molecule, hydrogen sulfide (H2S) is frequently present in a variety of mammals and plays a significant role in the cardiovascular and nervous systems. Reactive oxygen species (ROS) are produced in large quantities as a result of cerebral ischaemia-reperfusion, which is a very serious class of cerebrovascular diseases. ROS cause oxidative stress and induce specific gene expression that results in apoptosis. H2S reduces cerebral ischaemia-reperfusion-induced secondary injury via anti-oxidative stress injury, suppression of the inflammatory response, inhibition of apoptosis, attenuation of cerebrovascular endothelial cell injury, modulation of autophagy, and antagonism of P2X7 receptors, and it plays an important biological role in other cerebral ischaemic injury events. Despite the many limitations of the hydrogen sulfide therapy delivery strategy and the difficulty in controlling the ideal concentration, relevant experimental evidence demonstrating that H2S plays an excellent neuroprotective role in cerebral ischaemia-reperfusion injury (CIRI). This paper examines the synthesis and metabolism of the gas molecule H2S in the brain as well as the molecular mechanisms of H2S donors in cerebral ischaemia-reperfusion injury and possibly other unknown biological functions. With the active development in this field, it is expected that this review will assist researchers in their search for the potential value of hydrogen sulfide and provide new ideas for preclinical trials of exogenous H2S.
Collapse
Affiliation(s)
- Yiwei Huang
- Basic Medical College, Jiamusi University, Jiamusi 154007, Heilongjiang, China; Key Laboratory of Microecology-Immune Regulatory Network and Related Diseases, Jiamusi 154007, Heilongjiang, China.
| | - Moussa Omorou
- Key Laboratory of Microecology-Immune Regulatory Network and Related Diseases, Jiamusi 154007, Heilongjiang, China; Basic Medical College, Jiamusi University, Jiamusi 154007, Heilongjiang, China.
| | - Meng Gao
- Key Laboratory of Microecology-Immune Regulatory Network and Related Diseases, Jiamusi 154007, Heilongjiang, China; Basic Medical College, Jiamusi University, Jiamusi 154007, Heilongjiang, China.
| | - Chenxi Mu
- Key Laboratory of Microecology-Immune Regulatory Network and Related Diseases, Jiamusi 154007, Heilongjiang, China; Basic Medical College, Jiamusi University, Jiamusi 154007, Heilongjiang, China.
| | - Weijing Xu
- School of Public Health, Jiamusi University, Jiamusi 154007, Heilongjiang, China.
| | - Hui Xu
- Key Laboratory of Microecology-Immune Regulatory Network and Related Diseases, Jiamusi 154007, Heilongjiang, China.
| |
Collapse
|
5
|
Mechanistic Insights into the Role of OPN in Mediating Brain Damage via Triggering Lysosomal Damage in Microglia/Macrophage. Cells 2023; 12:cells12060854. [PMID: 36980197 PMCID: PMC10046941 DOI: 10.3390/cells12060854] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Revised: 03/02/2023] [Accepted: 03/07/2023] [Indexed: 03/12/2023] Open
Abstract
We previously found that osteopontin (OPN) played a role in hypoxia–ischemia (HI) brain damage. However, its underlying mechanism is still unknown. Bioinformatics analysis revealed that the OPN protein was linked to the lysosomal cathepsin B (CTSB) and galectin-3 (GAL-3) proteins after HI exposure. In the present study, we tested the hypothesis that OPN was able to play a critical role in the lysosomal damage of microglia/macrophages following HI insult in neonatal mice. The results showed that OPN expression was enhanced, especially in microglia/macrophages, and colocalized with lysosomal-associated membrane protein 1 (LAMP1) and GAL-3; this was accompanied by increased LAMP1 and GAL-3 expression, CTSB leakage, as well as impairment of autophagic flux in the early stage of the HI process. In addition, the knockdown of OPN expression markedly restored lysosomal function with significant improvements in the autophagic flux after HI insult. Interestingly, cleavage of OPN was observed in the ipsilateral cortex following HI. The wild-type OPN and C-terminal OPN (Leu152-Asn294), rather than N-terminal OPN (Met1-Gly151), interacted with GAL-3 to induce lysosomal damage. Furthermore, the secreted OPN stimulated lysosomal damage by binding to CD44 in microglia in vitro. Collectively, this study demonstrated that upregulated OPN in microglia/macrophages and its cleavage product was able to interact with GAL-3, and secreted OPN combined with CD44, leading to lysosomal damage and exacerbating autophagosome accumulation after HI exposure.
Collapse
|
6
|
Bushra, Maha IF, Xie X, Yin F. Integration of transcriptomic and metabolomic profiling of encystation in Cryptocaryon irritans regulated by rapamycin. Vet Parasitol 2023; 314:109868. [PMID: 36603452 DOI: 10.1016/j.vetpar.2022.109868] [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: 08/23/2022] [Revised: 12/20/2022] [Accepted: 12/21/2022] [Indexed: 12/24/2022]
Abstract
Encystation in Cryptocaryon irritans is a fundamental process for environmental resistance and development. Autophagy participates in the encystation of ciliates, and rapamycin can induce autophagy in the cells. A set of genes and metabolites related to autophagy and encystation are highly elaborative. The existence of these genes and metabolites and their role are well characterized. However, little is known about their role in protozoans such as ciliates. The newly produced C. irritans protomonts were exposed to an optimal concentration of rapamycin (1400 nM), and the survival, encystation, microstructure/ultrastructure, transcriptomic and metabolomic profile in treated and control protomonts were investigated. The results showed that exposure of protomonts to rapamycin at 4 h significantly lowered the survival and encystation rates to 91.62 % and 98.44 % compared to the control group (100 %, p ≤ 0.05). Morphological alterations observed in light microscopy and transmission electron microscopy (TEM) demonstrated that the drug significantly changed cell symmetry by causing the formation of various autophagic vacuoles/vesicles. The transcriptome sequencing of rapamycin-treated protomont revealed that 2249 (1837 up-regulated and 977 down-regulated) differentially expressed genes (DEGs) were identified. Kyoto Encyclopedia of Genes and Genomes (KEGG) analysis showed that 226 DEGs were successfully annotated in 21 pathways (p˂0.05), including most enriched pathways apoptosis and phagosome with 25 and 24 DEGs, respectively. Most unigenes were assigned to autophagy-related pathways; 24 DEGs were classified into phagosomes, and 15 DEGs were assigned to lysosome pathways. Cytoskeleton and cell progression-associated genes were down-regulated. Besides, cell death-inducing proteins were up-regulated. The metabolomic analysis revealed exposure to rapamycin treatment enhanced protomont metabolites, including L-Cysteine, which is related to autophagy. Rapamycin had influenced the gene and metabolites of protomont; activating autophagy with inhibition of mechanistic target of rapamycin, (mTOR). The process negatively influences protomont morphology, encystation, and survival. Further autophagy-related gene silencing can be investigated via genome sequencing of C. irritans to study encystation.
Collapse
Affiliation(s)
- Bushra
- School of Marine Sciences, Ningbo University, 818 Fenghua Road, Ningbo 315211, PR China; State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Ningbo University, 818 Fenghua Road, Ningbo 315211, PR China; Key Laboratory of Applied Marine Biotechnology, Ministry of Education, Ningbo University, 818 Fenghua Road, Ningbo 315211, PR China
| | - Ivon F Maha
- School of Marine Sciences, Ningbo University, 818 Fenghua Road, Ningbo 315211, PR China; State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Ningbo University, 818 Fenghua Road, Ningbo 315211, PR China; Key Laboratory of Applied Marine Biotechnology, Ministry of Education, Ningbo University, 818 Fenghua Road, Ningbo 315211, PR China
| | - Xiao Xie
- School of Marine Sciences, Ningbo University, 818 Fenghua Road, Ningbo 315211, PR China; State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Ningbo University, 818 Fenghua Road, Ningbo 315211, PR China; Key Laboratory of Applied Marine Biotechnology, Ministry of Education, Ningbo University, 818 Fenghua Road, Ningbo 315211, PR China.
| | - Fei Yin
- School of Marine Sciences, Ningbo University, 818 Fenghua Road, Ningbo 315211, PR China; State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Ningbo University, 818 Fenghua Road, Ningbo 315211, PR China; Key Laboratory of Applied Marine Biotechnology, Ministry of Education, Ningbo University, 818 Fenghua Road, Ningbo 315211, PR China.
| |
Collapse
|
7
|
Zhang Y, Jelleschitz J, Grune T, Chen W, Zhao Y, Jia M, Wang Y, Liu Z, Höhn A. Methionine restriction - Association with redox homeostasis and implications on aging and diseases. Redox Biol 2022; 57:102464. [PMID: 36152485 PMCID: PMC9508608 DOI: 10.1016/j.redox.2022.102464] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Revised: 08/26/2022] [Accepted: 08/30/2022] [Indexed: 10/31/2022] Open
Abstract
Methionine is an essential amino acid, involved in the promotion of growth, immunity, and regulation of energy metabolism. Over the decades, research has long focused on the beneficial effects of methionine supplementation, while data on positive effects of methionine restriction (MR) were first published in 1993. MR is a low-methionine dietary intervention that has been reported to ameliorate aging and aging-related health concomitants and diseases, such as obesity, type 2 diabetes, and cognitive disorders. In addition, MR seems to be an approach to prolong lifespan which has been validated extensively in various animal models, such as Caenorhabditis elegans, Drosophila, yeast, and murine models. MR appears to be associated with a reduction in oxidative stress via so far mainly undiscovered mechanisms, and these changes in redox status appear to be one of the underlying mechanisms for lifespan extension and beneficial health effects. In the present review, the association of methionine metabolism pathways with redox homeostasis is described. In addition, the effects of MR on lifespan, age-related implications, comorbidities, and diseases are discussed.
Collapse
Affiliation(s)
- Yuyu Zhang
- Laboratory of Functional Chemistry and Nutrition of Food, College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Julia Jelleschitz
- German Institute of Human Nutrition (DIfE) Potsdam-Rehbruecke, Department of Molecular Toxicology, Arthur-Scheunert-Allee 114-116, 14558, Nuthetal, Germany
| | - Tilman Grune
- German Institute of Human Nutrition (DIfE) Potsdam-Rehbruecke, Department of Molecular Toxicology, Arthur-Scheunert-Allee 114-116, 14558, Nuthetal, Germany; German Center for Diabetes Research (DZD), 85764, Muenchen-Neuherberg, Germany; NutriAct-Competence Cluster Nutrition Research Berlin-Potsdam, Nuthetal, Germany; German Center for Cardiovascular Research (DZHK), Berlin, Germany; Institute of Nutrition, University of Potsdam, Nuthetal, 14558, Germany
| | - Weixuan Chen
- Laboratory of Functional Chemistry and Nutrition of Food, College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Yihang Zhao
- Laboratory of Functional Chemistry and Nutrition of Food, College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Mengzhen Jia
- Laboratory of Functional Chemistry and Nutrition of Food, College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Yajie Wang
- Laboratory of Functional Chemistry and Nutrition of Food, College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Zhigang Liu
- Laboratory of Functional Chemistry and Nutrition of Food, College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi, 712100, China; German Institute of Human Nutrition (DIfE) Potsdam-Rehbruecke, Department of Molecular Toxicology, Arthur-Scheunert-Allee 114-116, 14558, Nuthetal, Germany.
| | - Annika Höhn
- German Institute of Human Nutrition (DIfE) Potsdam-Rehbruecke, Department of Molecular Toxicology, Arthur-Scheunert-Allee 114-116, 14558, Nuthetal, Germany; German Center for Diabetes Research (DZD), 85764, Muenchen-Neuherberg, Germany.
| |
Collapse
|
8
|
Chen M, Zhang H, Chu YH, Tang Y, Pang XW, Qin C, Tian DS. Microglial autophagy in cerebrovascular diseases. Front Aging Neurosci 2022; 14:1023679. [PMID: 36275005 PMCID: PMC9582432 DOI: 10.3389/fnagi.2022.1023679] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2022] [Accepted: 09/20/2022] [Indexed: 11/25/2022] Open
Abstract
Microglia are considered core regulators for monitoring homeostasis in the brain and primary responders to central nervous system (CNS) injuries. Autophagy affects the innate immune functions of microglia. Recently some evidence suggests that microglial autophagy is closely associated with brain function in both ischemic stroke and hemorrhagic stroke. Herein, we will discuss the interaction between autophagy and other biological processes in microglia under physiological and pathological conditions and highlight the interaction between microglial metabolism and autophagy. In the end, we focus on the effect of microglial autophagy in cerebrovascular diseases.
Collapse
|
9
|
The Role of Hydrogen Sulfide Targeting Autophagy in the Pathological Processes of the Nervous System. Metabolites 2022; 12:metabo12090879. [PMID: 36144282 PMCID: PMC9502065 DOI: 10.3390/metabo12090879] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Revised: 09/13/2022] [Accepted: 09/15/2022] [Indexed: 11/16/2022] Open
Abstract
Autophagy is an important cellular process, involving the transportation of cytoplasmic contents in the double membrane vesicles to lysosomes for degradation. Autophagy disorder contributes to many diseases, such as immune dysfunction, cancers and nervous system diseases. Hydrogen sulfide (H2S) is a volatile and toxic gas with a rotten egg odor. For a long time, it was considered as an environmental pollution gas. In recent years, H2S is regarded as the third most important gas signal molecule after NO and CO. H2S has a variety of biological functions and can play an important role in a variety of physiological and pathological processes. Increasingly more evidences show that H2S can regulate autophagy to play a protective role in the nervous system, but the mechanism is not fully understood. In this review, we summarize the recent literatures on the role of H2S in the pathological process of the nervous system by regulating autophagy, and analyze the mechanism in detail, hoping to provide the reference for future related research.
Collapse
|
10
|
L-Cysteine attenuates osteopontin-mediated neuroinflammation following hypoxia-ischemia insult in neonatal mice by inducing S-sulfhydration of Stat3. Acta Pharmacol Sin 2022; 43:1658-1669. [PMID: 34737419 PMCID: PMC9253102 DOI: 10.1038/s41401-021-00794-2] [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: 06/08/2021] [Accepted: 10/12/2021] [Indexed: 11/08/2022] Open
Abstract
We previously show that L-Cysteine administration significantly suppresses hypoxia-ischemia (HI)-induced neuroinflammation in neonatal mice through releasing H2S. In this study we conducted proteomics analysis to explore the potential biomarkers or molecular therapeutic targets associated with anti-inflammatory effect of L-Cysteine in neonatal mice following HI insult. HI brain injury was induced in postnatal day 7 (P7) neonatal mice. The pups were administered L-Cysteine (5 mg/kg) at 24, 48, and 72 h post-HI. By conducting TMT-based proteomics analysis, we confirmed that osteopontin (OPN) was the most upregulated protein in ipsilateral cortex 72 h following HI insult. Moreover, OPN was expressed in CD11b+/CD45low cells and infiltrating CD11b+/CD45high cells after HI exposure. Intracerebroventricular injection of OPN antibody blocked OPN expression, significantly attenuated brain damage, reduced pro-inflammatory cytokine levels and suppressed cerebral recruitment of CD11b+/CD45high immune cells following HI insult. L-Cysteine administration reduced OPN expression in CD11b+/CD45high immune cells, concomitant with improving the behavior in Y-maze test and suppressing cerebral recruitment of CD11b+/CD45high immune cells post-HI insult. Moreover, L-Cysteine administration suppressed the Stat3 activation by inducing S-sulfhydration of Stat3. Intracerebroventricular injection of Stat3 siRNA not only decreased OPN expression, but also reversed HI brain damage. Our data demonstrate that L-Cysteine administration effectively attenuates the OPN-mediated neuroinflammation by inducing S-sulfhydration of Stat3, which contributes to its anti-inflammatory effect following HI insult in neonatal mice. Blocking OPN expression may serve as a new target for therapeutic intervention for perinatal HI brain injury.
Collapse
|
11
|
Gao Y, Zhang H, Wang Y, Han T, Jin J, Li J, Tang Y, Liu C. L-Cysteine Alleviates Myenteric Neuron Injury Induced by Intestinal Ischemia/Reperfusion via Inhibitin the Macrophage NLRP3-IL-1β Pathway. Front Pharmacol 2022; 13:899169. [PMID: 35754513 PMCID: PMC9213754 DOI: 10.3389/fphar.2022.899169] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Accepted: 04/26/2022] [Indexed: 11/13/2022] Open
Abstract
Ischemia/reperfusion injury is a common pathophysiological process in the clinic. It causes various injuries, multiple organ dysfunction, and even death. There are several possible mechanisms about ischemia/reperfusion injury, but the influence on intestinal myenteric neurons and the underlying mechanism are still unclear. C57BL6/J mice were used to establish the ischemia/reperfusion model in vivo. Peritoneal macrophages were used for ATP depletion and hypoxia/reoxygenation experiment in vitro. L-cysteine, as the substrate of hydrogen sulfide, is involved in many physiological and pathological processes, including inflammation, metabolism, neuroprotection, and vasodilation. In the current study, we confirmed that intestinal ischemia/reperfusion led to the injury of myenteric neurons. From experiments in vitro and in vivo, we demonstrated that L-cysteine protected myenteric neurons from the injury. AOAA reversed the protective effect of L-cysteine. Also, L-cysteine played a protective role mainly by acting on intestinal macrophages via decreasing the expression of NLRP3, cleaved caspase-1, and mature IL-1β. L-cysteine increased cystathionine beta synthase and H2S produced by intestinal macrophages to protect myenteric mature neurons and enteric neural precursor cells from apoptosis. Moreover, the addition of IL-1β-neutralizing antibody alleviated the injury of myenteric neurons and enteric neural precursor cells caused by intestinal ischemia/reperfusion. Our study provided a new target for the protection of myenteric neurons in clinical intestinal ischemia/reperfusion injury.
Collapse
Affiliation(s)
- Yifei Gao
- Department of Physiology, School of Basic Medical Sciences, Cheeloo Medical College, Shandong University, Jinan, China
| | - Haojie Zhang
- Department of Physiology, School of Basic Medical Sciences, Cheeloo Medical College, Shandong University, Jinan, China
| | - Yujin Wang
- Department of Physiology, School of Basic Medical Sciences, Cheeloo Medical College, Shandong University, Jinan, China
| | - Ting Han
- Department of Gastroenterology, Qilu Hospital (Qingdao), Cheeloo College of Medicine, Shandong University, Qingdao, China
| | - Jing Jin
- Department of TCM Rheumatology, China-Japan Friendship Hospital, Beijing, China
| | - Jingxin Li
- Department of Physiology, School of Basic Medical Sciences, Cheeloo Medical College, Shandong University, Jinan, China
| | - Yan Tang
- Department of Gastroenterology, Qilu Hospital (Qingdao), Cheeloo College of Medicine, Shandong University, Qingdao, China
| | - Chuanyong Liu
- Department of Physiology, School of Basic Medical Sciences, Cheeloo Medical College, Shandong University, Jinan, China.,Provincial Key Lab of Mental Disorders, Shandong University, Jinan, China
| |
Collapse
|
12
|
Pozzi G, Gobbi G, Masselli E, Carubbi C, Presta V, Ambrosini L, Vitale M, Mirandola P. Buffering Adaptive Immunity by Hydrogen Sulfide. Cells 2022; 11:cells11030325. [PMID: 35159135 PMCID: PMC8834412 DOI: 10.3390/cells11030325] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Revised: 01/14/2022] [Accepted: 01/16/2022] [Indexed: 02/06/2023] Open
Abstract
T cell-mediated adaptive immunity is designed to respond to non-self antigens and pathogens through the activation and proliferation of various T cell populations. T helper 1 (Th1), Th2, Th17 and Treg cells finely orchestrate cellular responses through a plethora of paracrine and autocrine stimuli that include cytokines, autacoids, and hormones. Hydrogen sulfide (H2S) is one of these mediators able to induce/inhibit immunological responses, playing a role in inflammatory and autoimmune diseases, neurological disorders, asthma, acute pancreatitis, and sepsis. Both endogenous and exogenous H2S modulate numerous important cell signaling pathways. In monocytes, polymorphonuclear, and T cells H2S impacts on activation, survival, proliferation, polarization, adhesion pathways, and modulates cytokine production and sensitivity to chemokines. Here, we offer a comprehensive review on the role of H2S as a natural buffer able to maintain over time a functional balance between Th1, Th2, Th17 and Treg immunological responses.
Collapse
Affiliation(s)
- Giulia Pozzi
- Anatomy Unit, Department of Medicine and Surgery, University of Parma, Via Gramsci 14, 43126 Parma, Italy; (G.P.); (G.G.); (C.C.); (V.P.); (L.A.); (M.V.)
| | - Giuliana Gobbi
- Anatomy Unit, Department of Medicine and Surgery, University of Parma, Via Gramsci 14, 43126 Parma, Italy; (G.P.); (G.G.); (C.C.); (V.P.); (L.A.); (M.V.)
| | - Elena Masselli
- Anatomy Unit, Department of Medicine and Surgery, University of Parma, Via Gramsci 14, 43126 Parma, Italy; (G.P.); (G.G.); (C.C.); (V.P.); (L.A.); (M.V.)
- University Hospital of Parma, AOU-PR, Via Gramsci 14, 43126 Parma, Italy
- Correspondence: (E.M.); (P.M.)
| | - Cecilia Carubbi
- Anatomy Unit, Department of Medicine and Surgery, University of Parma, Via Gramsci 14, 43126 Parma, Italy; (G.P.); (G.G.); (C.C.); (V.P.); (L.A.); (M.V.)
| | - Valentina Presta
- Anatomy Unit, Department of Medicine and Surgery, University of Parma, Via Gramsci 14, 43126 Parma, Italy; (G.P.); (G.G.); (C.C.); (V.P.); (L.A.); (M.V.)
| | - Luca Ambrosini
- Anatomy Unit, Department of Medicine and Surgery, University of Parma, Via Gramsci 14, 43126 Parma, Italy; (G.P.); (G.G.); (C.C.); (V.P.); (L.A.); (M.V.)
| | - Marco Vitale
- Anatomy Unit, Department of Medicine and Surgery, University of Parma, Via Gramsci 14, 43126 Parma, Italy; (G.P.); (G.G.); (C.C.); (V.P.); (L.A.); (M.V.)
- University Hospital of Parma, AOU-PR, Via Gramsci 14, 43126 Parma, Italy
- Italian Foundation for the Research in Balneology, Via Po 22, 00198 Rome, Italy
| | - Prisco Mirandola
- Anatomy Unit, Department of Medicine and Surgery, University of Parma, Via Gramsci 14, 43126 Parma, Italy; (G.P.); (G.G.); (C.C.); (V.P.); (L.A.); (M.V.)
- Correspondence: (E.M.); (P.M.)
| |
Collapse
|
13
|
Zhao M, Yao Y, Du J, Kong L, Zhao T, Wu D, Man L, Zhou W. 6-Gingerol Alleviates Neonatal Hypoxic-Ischemic Cerebral and White Matter Injury and Contributes to Functional Recovery. Front Pharmacol 2021; 12:707772. [PMID: 34630084 PMCID: PMC8492979 DOI: 10.3389/fphar.2021.707772] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Accepted: 09/08/2021] [Indexed: 12/19/2022] Open
Abstract
Hypoxic-ischemic encephalopathy (HIE) is one main cause of neonatal death and disability, causing substantial injury to white and gray matter, which can lead to severe neurobehavioral dysfunction, including intellectual disability and dyskinesia. Inflammation, nerve cell death, and white matter injury are important factors in the pathological process of HIE. 6-Gingerol is a ginger extract, which reduces inflammatory response and cell death. However, the role of 6-Gingerol in neonatal hypoxic-ischemic brain injury (HIBI) remains unknown. In this study, we constructed a mouse HIBI model and analyzed the protective effect of 6-Gingerol on HIBI by using behavioral tests, histological staining, qPCR and western blot. Here, we found that 6-Gingerol treatment could alleviate HIBI and improve short-term reflex performance, which is closely related to cell death and neuroinflammation. Additionally, 6-Gingerol reduced neuronal apoptosis, pro-inflammatory factor release, as well as microglial activation. Furthermore, 6-Gingerol significantly improved motor disability, which is associated with white matter damage. Thus, our results showed that 6-Gingerol could reduce the loss of myelin sheaths, alleviate cell death of oligodendrocytes, and stimulate the maturation of oligodendrocytes. In terms of mechanism, we found that 6-Gingerol decreased histone H3K27me3 levels, activated AKT pathway and inhibited the activation of ERK and NF-κB pathway at 3 days post-HIBI. Taken together, our data clearly indicate that 6-Gingerol plays a neuroprotective role against HIBI by epigenetic modification and regulation of AKT, ERK, and NF-κB pathways, inhibiting inflammatory responses and reducing cell death.
Collapse
Affiliation(s)
- Man Zhao
- Key Laboratory for Experimental Teratology of Ministry of Education, Shandong Key Laboratory of Mental Disorders, Key Laboratory of Birth Regulation and Control Technology of National Health Commission of China, Department of Anatomy and Histoembryology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Yuan Yao
- Centre for Sports and Exercise Science, School of Sport, Rehabilitation and Exercise Sciences, University of Essex, Colchester, United Kingdom
| | - Jingyi Du
- Key Laboratory for Experimental Teratology of Ministry of Education, Shandong Key Laboratory of Mental Disorders, Key Laboratory of Birth Regulation and Control Technology of National Health Commission of China, Department of Anatomy and Histoembryology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Liang Kong
- Department of Clinical Laboratory, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Tiantian Zhao
- Key Laboratory for Experimental Teratology of Ministry of Education, Shandong Key Laboratory of Mental Disorders, Key Laboratory of Birth Regulation and Control Technology of National Health Commission of China, Department of Anatomy and Histoembryology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Dong Wu
- Key Laboratory for Experimental Teratology of Ministry of Education, Shandong Key Laboratory of Mental Disorders, Key Laboratory of Birth Regulation and Control Technology of National Health Commission of China, Department of Anatomy and Histoembryology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Lajie Man
- Key Laboratory for Experimental Teratology of Ministry of Education, Shandong Key Laboratory of Mental Disorders, Key Laboratory of Birth Regulation and Control Technology of National Health Commission of China, Department of Anatomy and Histoembryology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Wenjuan Zhou
- Key Laboratory for Experimental Teratology of Ministry of Education, Shandong Key Laboratory of Mental Disorders, Key Laboratory of Birth Regulation and Control Technology of National Health Commission of China, Department of Anatomy and Histoembryology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, China
| |
Collapse
|
14
|
Zhang Y, Li K, Wang X, Ding Y, Ren Z, Fang J, Sun T, Guo Y, Chen Z, Wen J. CSE-Derived H 2S Inhibits Reactive Astrocytes Proliferation and Promotes Neural Functional Recovery after Cerebral Ischemia/Reperfusion Injury in Mice Via Inhibition of RhoA/ROCK 2 Pathway. ACS Chem Neurosci 2021; 12:2580-2590. [PMID: 34252278 DOI: 10.1021/acschemneuro.0c00674] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
The effect of cystathionine-γ-lyase (CSE)-derived hydrogen sulfide (H2S) on the reactive proliferation of astrocytes and neural functional recovery over 30 d after acute cerebral ischemia and reperfusion (I/R) was determined by applying wild-type (WT) and CSE knockout (KO) mice. The changes of glial fibrillary acidic protein (GFAP) expression in hippocampal tissues was tested. Besides, we assessed the changes of mice spatial learning memory ability, neuronal damage, RhoA, Rho kinase 2 (ROCK2), and myelin basic protein (MBP) expressions in hippocampal tissues. The results revealed that cerebral I/R resulted in obvious increase of GFAP expression in hippocampal tissues. Besides, we found the neuronal damage, learning, and memory deficits of mice induced by cerebral I/R as well as revealed the upregulation of RhoA and ROCK2 expressions and reduced MBP expression in hipppcampal tissues of mice following cerebral I/R. Not surprisingly, the GFAP expression and cerebral injury as well as the upregulation of the RhoA/ROCK2 pathway were more remarkable in CSE KO mice, compared with those in WT mice over 30 d following acute cerebral I/R, which could be blocked by NaHS treatment, a donor of exogenous H2S. In addition, the ROCK inhibitor Fasudil also inhibited the reactive proliferation of astrocytes and ameliorated the recovery of neuronal function over 30 d after cerebral I/R. For the purpose of further confirmation of the role of H2S on the astrocytes proliferation following cerebral I/R, the immunofluorescence double staining: bromodeoxyuridine (BrdU) and GFAP was evaluated. There was a marked upregulation of BrdU-labeled cells coexpressed with GFAP in hippocampal tissues at 30 d after acute cerebral I/R; however, the increment of astrocytes proliferation could be ameliorated by both NaHS and Fasudil. These findings indicated that CSE-derived H2S could inhibit the reactive proliferation of astrocytes and promote the recovery of mice neural functional deficits induced by a cerebral I/R injury via inhibition of the RhoA/ROCK2 signal pathway.
Collapse
Affiliation(s)
- Yang Zhang
- Department of Pharmacology, School of Basic Medical Sciences, Anhui Medical University, Hefei 230032, China
| | - Kexin Li
- Department of Pharmacology, School of Basic Medical Sciences, Anhui Medical University, Hefei 230032, China
| | - Xiangyi Wang
- Department of Pharmacology, School of Basic Medical Sciences, Anhui Medical University, Hefei 230032, China
| | - Yanyu Ding
- Department of Pharmacology, School of Basic Medical Sciences, Anhui Medical University, Hefei 230032, China
| | - Zhiruo Ren
- Department of Pharmacology, School of Basic Medical Sciences, Anhui Medical University, Hefei 230032, China
| | - Jinglong Fang
- Department of Pharmacology, School of Basic Medical Sciences, Anhui Medical University, Hefei 230032, China
| | - Tao Sun
- Department of Cardiovascular Surgery, First Affiliated Hospital of Anhui Medical University, Hefei 230032, China
| | - Yan Guo
- Department of Pharmacology, School of Basic Medical Sciences, Anhui Medical University, Hefei 230032, China
| | - Zhiwu Chen
- Department of Pharmacology, School of Basic Medical Sciences, Anhui Medical University, Hefei 230032, China
| | - Jiyue Wen
- Department of Pharmacology, School of Basic Medical Sciences, Anhui Medical University, Hefei 230032, China
| |
Collapse
|
15
|
Li M, Hua S, Huang X, Yue H, Chen C, Liu S. Non-targeted metabonomics to investigate the differences in the properties of ginseng and American ginseng based on rapid resolution liquid chromatography coupled with quadrupole-time-of-flight mass spectrometry. J Sep Sci 2021; 44:3497-3505. [PMID: 34269520 DOI: 10.1002/jssc.202100376] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Revised: 07/01/2021] [Accepted: 07/14/2021] [Indexed: 01/16/2023]
Abstract
The basic properties of herbal medicines are cold, hot, warm, and cool. The differentiation of these properties is important for the diagnosis and treatment of diseases. Ginseng and American ginseng possess opposite properties of warm and cool, respectively. At present, the mechanisms and the influence of steaming leading to the differences in their properties are not clear and require further investigation. Therefore, nontargeted metabonomics based on liquid chromatography-mass spectrometry was applied to investigate the effects of ginseng, American ginseng, and their variants on the changes in endogenous metabolites in rat urine. A total of 19 potential biomarkers were screened out and identified, of which 17, 7, and 5, were respectively related to warm, cool, and both warm and cool properties with opposite effects. The metabolic pathways corresponded to fatty acids, lipids, glycolysis, and energy metabolisms. The warm and tonic effects of red ginseng are stronger than those of ginseng and consistent with the theory of traditional Chinese medicine. The red American ginseng has cool property; however, the degree of coolness is less than that of American ginseng. This study provides a reference methodology to understand the effects of processing and mechanisms associated with the differences in the properties of herbal medicines.
Collapse
Affiliation(s)
- Mengmeng Li
- Jilin Ginseng Academy, Changchun University of Chinese Medicine, Changchun, 130117, P.R. China
| | - Shengyan Hua
- Jilin Ginseng Academy, Changchun University of Chinese Medicine, Changchun, 130117, P.R. China
| | - Xin Huang
- Jilin Ginseng Academy, Changchun University of Chinese Medicine, Changchun, 130117, P.R. China
| | - Hao Yue
- Jilin Ginseng Academy, Changchun University of Chinese Medicine, Changchun, 130117, P.R. China
| | - Changbao Chen
- Jilin Ginseng Academy, Changchun University of Chinese Medicine, Changchun, 130117, P.R. China
| | - Shuying Liu
- Jilin Ginseng Academy, Changchun University of Chinese Medicine, Changchun, 130117, P.R. China.,Chinese Academy of Sciences, Changchun Institute of Applied Chemistry, Changchun, 130022, P.R. China
| |
Collapse
|
16
|
Li T, Chu X, Xin D, Ke H, Wang S, Liu D, Chen W, Wang Z. H 2S prevents peripheral immune cell invasion, increasing [Ca 2+]i and excessive phagocytosis following hypoxia-ischemia injury in neonatal mice. Biomed Pharmacother 2021; 135:111207. [PMID: 33460958 DOI: 10.1016/j.biopha.2020.111207] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Revised: 12/15/2020] [Accepted: 12/26/2020] [Indexed: 12/24/2022] Open
Abstract
We previously reported that L-Cysteine, H2S donor, remarkably attenuated neuroinflammation following hypoxia-ischemia (HI) brain injury in neonatal mice. However, its anti-inflammatory mechanism for HI insult is still unknown. The study focus on the effects of L-Cysteine on immune cell populations, Ca2+ mobilization and phagocytosis after neonatal HI. We found that L-Cysteine treatment skewed CD11b+/CD45low microglia and CD11b+/CD45high brain monocytes/macrophages towards a more anti-inflammatory property 72 h after HI-injured brain. Moreover, L-Cysteine treatment reduced cerebral infiltration of CD4 T cells 7 days following HI insult. Furthermore, CD4 T cell subset analysis revealed that L-Cysteine treatment decreased Th1 and Th2 counts, while increased Th17/Th2 ratio. Moreover, L-Cysteine treatment suppressed LPS-induced cytosolic Ca2+ and LPS-stimulated phagocytosis in primary microglia. The anti-inflammatory effect of L-Cysteine was associated with improving neurobehavioral impairment following HI insult. Our results demonstrate L-Cysteine treatment suppressed the invasion of peripheral immune cells, increasing [Ca2+]i and excessive phagocytosis to improve neurobehavioral deficits following hypoxia-ischemia injury in neonatal mice by H2S release.
Collapse
Affiliation(s)
- Tingting Li
- Department of Physiology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, 250012, PR China
| | - Xili Chu
- Department of Physiology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, 250012, PR China
| | - Danqing Xin
- Department of Physiology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, 250012, PR China
| | - Hongfei Ke
- Department of Physiology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, 250012, PR China; Department of Medical Psychology and Ethics, School of Basic Medicine Sciences, Cheeloo College of Medicine, Shandong University, Jinan, 250012, Shandong, PR China
| | - Shuhan Wang
- Department of Physiology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, 250012, PR China
| | - Dexiang Liu
- Department of Medical Psychology and Ethics, School of Basic Medicine Sciences, Cheeloo College of Medicine, Shandong University, Jinan, 250012, Shandong, PR China
| | - Wenqiang Chen
- Qilu Hospital, Shandong University, Jinan, Shandong, PR China
| | - Zhen Wang
- Department of Physiology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, 250012, PR China.
| |
Collapse
|
17
|
Li T, Li J, Li T, Zhao Y, Ke H, Wang S, Liu D, Wang Z. L-Cysteine Provides Neuroprotection of Hypoxia-Ischemia Injury in Neonatal Mice via a PI3K/Akt-Dependent Mechanism. DRUG DESIGN DEVELOPMENT AND THERAPY 2021; 15:517-529. [PMID: 33603342 PMCID: PMC7886094 DOI: 10.2147/dddt.s293025] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/19/2020] [Accepted: 01/26/2021] [Indexed: 01/15/2023]
Abstract
Background Previous work within our laboratory has revealed that hydrogen sulfide (H2S) can serve as neuroprotectant against brain damage caused by hypoxia-ischemia (HI) exposure in neonatal mice. After HI insult, activation of the phosphatidylinositol-3-kinase (PI3K)/protein kinase B (Akt) signaling pathway has been shown to be implicated in neuro-restoration processes. The goal of the current study was to determine whether the neuroprotective effects of H2S were mediated by the PI3K/Akt signaling pathway. Methods The mouse HI model was built at postnatal day 7 (P7), and the effects of L-Cysteine treatment on acute brain damage (72 h post-HI) and long-term neurological responses (28 days post-HI) were evaluated. Nissl staining and Transmission electron microscopy were used to evaluate the neuronal loss and apoptosis. Immunofluorescence imaging and dihydroethidium staining were utilized to determine glial cell activation and ROS content, respectively. Results Quantitative results revealed that L-Cysteine treatment significantly prevented the acute effects of HI on apoptosis, glial cell activation and oxidative injury as well as the long-term effects upon memory impairment in neonatal mice. This protective effect of L-Cysteine was found to be associated with the phosphorylation of Akt and phosphatase and a tensin homolog deletion on chromosome 10 (PTEN). Following treatment with the PI3K inhibitor, LY294002, the neuroprotective effects of L-Cysteine were attenuated. Conclusion PTEN/PI3K/Akt signaling was involved in mediating the neuroprotective effects of exogenous H2S against HI exposure in neonatal mice.
Collapse
Affiliation(s)
- Tingting Li
- Department of Physiology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, People's Republic of China
| | - Jiangbing Li
- Department of Physiology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, People's Republic of China.,Department of Cardiology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, Shandong, People's Republic of China
| | - Tong Li
- Department of Neurosurgery Surgery, Qingdao Municipal Hospital, Shandong Province, People's Republic of China
| | - Yijing Zhao
- Department of Physiology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, People's Republic of China
| | - Hongfei Ke
- Department of Physiology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, People's Republic of China
| | - Shuanglian Wang
- Department of Physiology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, People's Republic of China
| | - Dexiang Liu
- Department of Medical Psychology and Ethics, School of Basic Medicine Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, People's Republic of China
| | - Zhen Wang
- Department of Physiology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, People's Republic of China
| |
Collapse
|
18
|
Shaposhnikov MV, Zemskaya NV, Koval LA, Schegoleva EV, Yakovleva DV, Ulyasheva NS, Gorbunova AA, Minnikhanova NR, Moskalev AA. Geroprotective potential of genetic and pharmacological interventions to endogenous hydrogen sulfide synthesis in Drosophila melanogaster. Biogerontology 2021; 22:197-214. [PMID: 33544267 DOI: 10.1007/s10522-021-09911-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Accepted: 01/22/2021] [Indexed: 12/11/2022]
Abstract
Endogenous hydrogen sulfide (H2S) is a gasotransmitter with a wide range of physiological functions. Aging is accompanied by disruption of H2S homeostasis, therefore, interventions to the processes of H2S metabolism to maintain its balance may have geroprotective potential. Here we demonstrated the additive geroprotective effect of combined genetic and pharmacological interventions to the hydrogen sulfide biosynthesis system by overexpression of cystathionine-β-synthase and cystathionine-γ-lyase genes and treatment with precursors of H2S synthesis cysteine (Cys) and N-acetyl-L-cysteine (NAC). The obtained results suggest that additive effects of genetic and pharmacological interventions to H2S metabolism may be associated with the complex interaction between beneficial action of H2S production and prevention of adverse effects of excess H2S production by Cys and NAC treatment.
Collapse
Affiliation(s)
- Mikhail V Shaposhnikov
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, 119991, Moscow, Russian Federation.,Institute of Biology of Komi Science Center, Ural Branch of RAS, 167982, Syktyvkar, Russian Federation
| | - Nadezhda V Zemskaya
- Institute of Biology of Komi Science Center, Ural Branch of RAS, 167982, Syktyvkar, Russian Federation
| | - Liubov A Koval
- Institute of Biology of Komi Science Center, Ural Branch of RAS, 167982, Syktyvkar, Russian Federation
| | - Eugenia V Schegoleva
- Institute of Biology of Komi Science Center, Ural Branch of RAS, 167982, Syktyvkar, Russian Federation
| | - Daria V Yakovleva
- Institute of Biology of Komi Science Center, Ural Branch of RAS, 167982, Syktyvkar, Russian Federation
| | - Natalia S Ulyasheva
- Institute of Biology of Komi Science Center, Ural Branch of RAS, 167982, Syktyvkar, Russian Federation
| | - Anastasia A Gorbunova
- Institute of Biology of Komi Science Center, Ural Branch of RAS, 167982, Syktyvkar, Russian Federation
| | - Natalya R Minnikhanova
- Institute of Biology of Komi Science Center, Ural Branch of RAS, 167982, Syktyvkar, Russian Federation
| | - Alexey A Moskalev
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, 119991, Moscow, Russian Federation. .,Institute of Biology of Komi Science Center, Ural Branch of RAS, 167982, Syktyvkar, Russian Federation.
| |
Collapse
|
19
|
Xin D, Li T, Chu X, Ke H, Liu D, Wang Z. MSCs-extracellular vesicles attenuated neuroinflammation, synapse damage and microglial phagocytosis after hypoxia-ischemia injury by preventing osteopontin expression. Pharmacol Res 2021; 164:105322. [PMID: 33279596 DOI: 10.1016/j.phrs.2020.105322] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Revised: 10/26/2020] [Accepted: 11/24/2020] [Indexed: 02/07/2023]
Abstract
Extracellular vesicles (EVs) derived from mesenchymal stem cells (MSCs) significantly suppressed hypoxia-ischemia (HI)-induced neuroinflammation in neonatal mice. However, its underlying mechanism is still unknown. Osteopontin (OPN) is one of the key molecules involved in neuroinflammation. We demonstrate here for the first time a key role of OPN in EVs-mediated neuroinflammation following HI. Firstly, HI exposure upregulated OPN expression in Iba-1+/ TMEM119+ microglia and Iba-1+/TMEM119- monocytes/macrophages. Blocking OPN mRNA expression with LV-shOPN attenuated edema, infarct volumes, and the levels of inflammatory cytokines following HI exposure. MSCs-EVs treatment remarkably restored synaptic reorganization and up-regulated synaptic protein expression post-HI, concomitant with reducing OPN levels. Moreover, MSCs-EVs treatment rescued microglial phagocytosis of viable neurons following HI, concomitant with decreasing OPN expression. In addition, blocking NF-κB activation with pyrrolidine dithiocarbamate (PDTC, NF-κB inhibitor) or MSCs-EVs attenuated HI-induced OPN expression in the ipsilateral cortex. This study demonstrates that upregulation of OPN expression in cerebral immune cells aggravated brain damage and inflammation following HI insult. MSCs-EVs suppressed neuroinflammation, synaptic damage and microglial phagocytosis after HI injury by preventing NF-κB-mediated OPN expression in neonate mice.
Collapse
Affiliation(s)
- Danqing Xin
- Department of Physiology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, 44# Wenhua Xi Road, Jinan, Shandong, 250012, PR China
| | - Tingting Li
- Department of Physiology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, 44# Wenhua Xi Road, Jinan, Shandong, 250012, PR China
| | - Xili Chu
- Department of Physiology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, 44# Wenhua Xi Road, Jinan, Shandong, 250012, PR China
| | - Hongfei Ke
- Department of Physiology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, 44# Wenhua Xi Road, Jinan, Shandong, 250012, PR China
| | - Dexiang Liu
- Department of Medical Psychology and Ethics, School of Basic Medicine Sciences, Cheeloo College of Medicine, Shandong University, Jinan, 250012, Shandong, PR China
| | - Zhen Wang
- Department of Physiology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, 44# Wenhua Xi Road, Jinan, Shandong, 250012, PR China.
| |
Collapse
|
20
|
Chu X, Liu D, Li T, Ke H, Xin D, Wang S, Cao Y, Xue H, Wang Z. Hydrogen sulfide-modified extracellular vesicles from mesenchymal stem cells for treatment of hypoxic-ischemic brain injury. J Control Release 2020; 328:13-27. [DOI: 10.1016/j.jconrel.2020.08.037] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2019] [Revised: 08/14/2020] [Accepted: 08/20/2020] [Indexed: 02/06/2023]
|
21
|
Ke H, Liu D, Li T, Chu X, Xin D, Han M, Wang S, Wang Z. Hydrogen-Rich Saline Regulates Microglial Phagocytosis and Restores Behavioral Deficits Following Hypoxia-Ischemia Injury in Neonatal Mice via the Akt Pathway. Drug Des Devel Ther 2020; 14:3827-3839. [PMID: 33061290 PMCID: PMC7526477 DOI: 10.2147/dddt.s264684] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Accepted: 08/13/2020] [Indexed: 12/19/2022] Open
Abstract
INTRODUCTION We have reported previously that hydrogen-rich saline (HS) plays a neuroprotective role in hypoxia-ischemia (HI) brain damage in newborn mice. However, the mechanisms for this neuroprotection resulting from HS remain unknown. In this study, we examined the potential for HS to exert effects upon microglial phagocytosis via involvement of the Akt signaling pathway as one of the neuroprotective mechanisms in response to neonatal HI. METHODS The HI brain injury model was performed on postnatal day (PND) 7 (modified Vannucci model). The acute brain damage was detected at 3 days after HI exposure. The behavioral and functional screening of the pups at PND11 and PND13 and their long-term outcomes (PND35, 28-days post-HI) were evaluated sensorimotor performance and cognitive functions, respectively. RESULTS The result showed that HS administration alleviated HI-induced edema, infract volume and cellular apoptosis within the cortex of neonatal mice. Accompanying these indices of neuroprotection from HS were reductions in HI-induced phagocytosis in microglia as demonstrated in vivo and in vitro, effects that were associated with increasing levels of Akt phosphorylation and improvements in neurobehavioral responses. These beneficial effects of HS were abolished in mice treated with an Akt inhibitor. DISCUSSION These results demonstrate that HS treatment attenuates neurobehavioral deficits and apoptosis resulting from HI, effects which were associated with reductions in phagocytosis and appear to involve the Akt signaling pathway.
Collapse
Affiliation(s)
- Hongfei Ke
- Department of Physiology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong250012, People’s Republic of China
| | - Dexiang Liu
- Department of Medical Psychology and Ethics, School of Basic Medicine Sciences, Cheeloo College of Medicine, Shandong University, Jinan250012, Shandong, People’s Republic of China
| | - Tingting Li
- Department of Physiology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong250012, People’s Republic of China
| | - Xili Chu
- Department of Physiology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong250012, People’s Republic of China
| | - Danqing Xin
- Department of Physiology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong250012, People’s Republic of China
| | - Min Han
- Department of Physiology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong250012, People’s Republic of China
| | - Shuanglian Wang
- Department of Physiology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong250012, People’s Republic of China
| | - Zhen Wang
- Department of Physiology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong250012, People’s Republic of China
| |
Collapse
|
22
|
Xin D, Li T, Chu X, Ke H, Yu Z, Cao L, Bai X, Liu D, Wang Z. Mesenchymal stromal cell-derived extracellular vesicles modulate microglia/macrophage polarization and protect the brain against hypoxia-ischemic injury in neonatal mice by targeting delivery of miR-21a-5p. Acta Biomater 2020; 113:597-613. [PMID: 32619670 DOI: 10.1016/j.actbio.2020.06.037] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2020] [Revised: 06/01/2020] [Accepted: 06/25/2020] [Indexed: 12/19/2022]
Abstract
Mesenchymal stromal cell (MSC)-derived extracellular vesicles (EVs) (MSC-EVs) exhibit protective effects in damaged or diseased tissues. However, the role of EVs secreted by MSC in hypoxia-ischemic (HI) injury in neonatal mice remains unknown. Systemic administration of MSC-EVs attenuated acute brain damage and neuroinflammation, and skewed CD11b+/CD45low microglia and CD11b+/CD45high brain monocyte/macrophage towards a more anti-inflammatory property as determined at 72 h post-HI. In addition, MSC-EVs remarkably improve the injury outcomes pups prior to weaning (P21), while no effect on long-term memory impairment (P42). Importantly, these effects were preceded by incorporation of MSC-EVs into a large number of neurons and microglia within HI group. Abundant levels of miR-21a-5p were present in EVs as determined with next-generation sequencing. Notably, MSC-EVs treatment further increased miR-21a-5p levels at 72 h post HI. Knockdown analyses revealed that miR-21a-5p, and its target-Timp3, were essential for this neuroprotective property of MSC-EVs following HI exposure as demonstrated in both in vitro and in vivo models. These findings suggest that a systemic administration of EVs derived from MSC, have the capacity to incorporated into neurons and microglia where they can then exert neuroprotection against HI-induced injury in neonates through the delivery of miR-21a-5p.
Collapse
Affiliation(s)
- Danqing Xin
- Department of Physiology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, PR China
| | - Tingting Li
- Department of Physiology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, PR China
| | - Xili Chu
- Department of Physiology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, PR China
| | - Hongfei Ke
- Department of Physiology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, PR China
| | - Zhuoya Yu
- Department of Physiology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, PR China
| | - Lili Cao
- Department of Physiology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, PR China
| | - Xuemei Bai
- Department of Physiology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, PR China
| | - Dexiang Liu
- Department of Medical Psychology and Ethics, School of Basic Medicine Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, PR China
| | - Zhen Wang
- Department of Physiology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, PR China.
| |
Collapse
|
23
|
Dilek N, Papapetropoulos A, Toliver-Kinsky T, Szabo C. Hydrogen sulfide: An endogenous regulator of the immune system. Pharmacol Res 2020; 161:105119. [PMID: 32781284 DOI: 10.1016/j.phrs.2020.105119] [Citation(s) in RCA: 121] [Impact Index Per Article: 30.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Revised: 07/30/2020] [Accepted: 07/30/2020] [Indexed: 12/12/2022]
Abstract
Hydrogen sulfide (H2S) is now recognized as an endogenous signaling gasotransmitter in mammals. It is produced by mammalian cells and tissues by various enzymes - predominantly cystathionine β-synthase (CBS), cystathionine γ-lyase (CSE) and 3-mercaptopyruvate sulfurtransferase (3-MST) - but part of the H2S is produced by the intestinal microbiota (colonic H2S-producing bacteria). Here we summarize the available information on the production and functional role of H2S in the various cell types typically associated with innate immunity (neutrophils, macrophages, dendritic cells, natural killer cells, mast cells, basophils, eosinophils) and adaptive immunity (T and B lymphocytes) under normal conditions and as it relates to the development of various inflammatory and immune diseases. Special attention is paid to the physiological and the pathophysiological aspects of the oral cavity and the colon, where the immune cells and the parenchymal cells are exposed to a special "H2S environment" due to bacterial H2S production. H2S has many cellular and molecular targets. Immune cells are "surrounded" by a "cloud" of H2S, as a result of endogenous H2S production and exogenous production from the surrounding parenchymal cells, which, in turn, importantly regulates their viability and function. Downregulation of endogenous H2S producing enzymes in various diseases, or genetic defects in H2S biosynthetic enzyme systems either lead to the development of spontaneous autoimmune disease or accelerate the onset and worsen the severity of various immune-mediated diseases (e.g. autoimmune rheumatoid arthritis or asthma). Low, regulated amounts of H2S, when therapeutically delivered by small molecule donors, improve the function of various immune cells, and protect them against dysfunction induced by various noxious stimuli (e.g. reactive oxygen species or oxidized LDL). These effects of H2S contribute to the maintenance of immune functions, can stimulate antimicrobial defenses and can exert anti-inflammatory therapeutic effects in various diseases.
Collapse
Affiliation(s)
- Nahzli Dilek
- Chair of Pharmacology, Section of Medicine, University of Fribourg, Switzerland
| | - Andreas Papapetropoulos
- Laboratory of Pharmacology, Faculty of Pharmacy, National and Kapodistrian University of Athens, Greece
| | - Tracy Toliver-Kinsky
- Department of Anesthesiology, University of Texas Medical Branch, Galveston, TX, USA
| | - Csaba Szabo
- Chair of Pharmacology, Section of Medicine, University of Fribourg, Switzerland; Department of Anesthesiology, University of Texas Medical Branch, Galveston, TX, USA.
| |
Collapse
|
24
|
Kumar M, Arora P, Sandhir R. Hydrogen Sulfide Reverses LPS-Induced Behavioral Deficits by Suppressing Microglial Activation and Promoting M2 Polarization. J Neuroimmune Pharmacol 2020; 16:483-499. [DOI: 10.1007/s11481-020-09920-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2020] [Accepted: 04/21/2020] [Indexed: 01/01/2023]
|
25
|
Liu D, Bai X, Ma W, Xin D, Chu X, Yuan H, Qiu J, Ke H, Yin S, Chen W, Wang Z. Purmorphamine Attenuates Neuro-Inflammation and Synaptic Impairments After Hypoxic-Ischemic Injury in Neonatal Mice via Shh Signaling. Front Pharmacol 2020; 11:204. [PMID: 32194421 PMCID: PMC7064623 DOI: 10.3389/fphar.2020.00204] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2019] [Accepted: 02/14/2020] [Indexed: 01/05/2023] Open
Abstract
Purmorphamine (PUR), an agonist of the Smoothened (Smo) receptor, has been shown to function as a neuroprotectant in acute experimental ischemic stroke. Its role in hypoxic-ischemic (HI) brain injury in neonatal mice remains unknown. Here we show that PUR attenuated acute brain injury, with a decrease in Bax/Bcl-2 ratio as well as inhibition of caspase-3 activation. These beneficial effects of PUR were associated with suppressing neuro-inflammation and oxidative stress. PUR exerted long-term protective effects upon tissue loss and improved neurobehavioral outcomes as determined at 14 and 28 days post-HI insult. Moreover, PUR increased synaptophysin (Syn) and postsynaptic density (PSD) protein 95 expression in HI-treated mice and attenuated synaptic loss. PUR upregulated the expression of Shh pathway mediators, while suppression of the Shh signaling pathway with cyclopamine (Cyc) reversed these beneficial effects of PUR on HI insult. Our study suggests a therapeutic potential for short-term PUR administration in HI-induced injury as a result of its capacity to exert multiple protective actions upon acute brain injury, long-term memory deficits, and impaired synapses. Moreover, we provide evidence indicating that one of the mechanisms underlying these beneficial effects of PUR involves activation of the Shh signaling pathway.
Collapse
Affiliation(s)
- Dexiang Liu
- Department of Medical Psychology and Ethics, School of Basic Medicine Sciences, Shandong University, Jinan, China
| | - Xuemei Bai
- Department of Physiology, School of Basic Medical Sciences, Shandong University, Jinan, China
| | - Weiwei Ma
- Department of Medical Psychology and Ethics, School of Basic Medicine Sciences, Shandong University, Jinan, China.,Department of Physiology, School of Basic Medical Sciences, Shandong University, Jinan, China
| | - Danqing Xin
- Department of Physiology, School of Basic Medical Sciences, Shandong University, Jinan, China
| | - Xili Chu
- Department of Physiology, School of Basic Medical Sciences, Shandong University, Jinan, China
| | - Hongtao Yuan
- Department of Physiology, School of Basic Medical Sciences, Shandong University, Jinan, China
| | - Jie Qiu
- Department of Medical Psychology and Ethics, School of Basic Medicine Sciences, Shandong University, Jinan, China.,Department of Physiology, School of Basic Medical Sciences, Shandong University, Jinan, China
| | - HongFei Ke
- Department of Physiology, School of Basic Medical Sciences, Shandong University, Jinan, China
| | - Sen Yin
- Qilu Hospital, Shandong University, Jinan, China
| | | | - Zhen Wang
- Department of Physiology, School of Basic Medical Sciences, Shandong University, Jinan, China
| |
Collapse
|
26
|
Xiong Y, Xin DQ, Hu Q, Wang LX, Qiu J, Yuan HT, Chu XL, Liu DX, Li G, Wang Z. Neuroprotective mechanism of L-cysteine after subarachnoid hemorrhage. Neural Regen Res 2020; 15:1920-1930. [PMID: 32246641 PMCID: PMC7513988 DOI: 10.4103/1673-5374.280321] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Hydrogen sulfide, which can be generated in the central nervous system from the sulfhydryl-containing amino acid, L-cysteine, by cystathionine-β-synthase, may exert protective effects in experimental subarachnoid hemorrhage; however, the mechanism underlying this effect is unknown. This study explored the mechanism using a subarachnoid hemorrhage rat model induced by an endovascular perforation technique. Rats were treated with an intraperitoneal injection of 100 mM L-cysteine (30 μL) 30 minutes after subarachnoid hemorrhage. At 48 hours after subarachnoid hemorrhage, hematoxylin-eosin staining was used to detect changes in prefrontal cortex cells. L-cysteine significantly reduced cell edema. Neurological function was assessed using a modified Garcia score. Brain water content was measured by the wet-dry method. L-cysteine significantly reduced neurological deficits and cerebral edema after subarachnoid hemorrhage. Immunofluorescence was used to detect the number of activated microglia. Reverse transcription-polymerase chain reaction (RT-PCR) was used to detect the levels of interleukin 1β and CD86 mRNA in the prefrontal cortex. L-cysteine inhibited microglial activation in the prefrontal cortex and reduced the mRNA levels of interleukin 1β and CD86. RT-PCR and western blot analysis of the complement system showed that L-cysteine reduced expression of the complement factors, C1q, C3α and its receptor C3aR1, and the deposition of C1q in the prefrontal cortex. Dihydroethidium staining was applied to detect changes in reactive oxygen species, and immunohistochemistry was used to detect the number of NRF2- and HO-1-positive cells. L-cysteine reduced the level of reactive oxygen species in the prefrontal cortex and the number of NRF2- and HO-1-positive cells. Western blot assays and immunohistochemistry were used to detect the protein levels of CHOP and GRP78 in the prefrontal cortex and the number of CHOP- and GRP78-positive cells. L-cysteine reduced CHOP and GRP78 levels and the number of CHOP- and GRP78-positive cells. The cystathionine-β-synthase inhibitor, aminooxyacetic acid, significantly reversed the above neuroprotective effects of L-cysteine. Taken together, L-cysteine can play a neuroprotective role by regulating neuroinflammation, complement deposition, oxidative stress and endoplasmic reticulum stress. The study was approved by the Animals Ethics Committee of Shandong University, China on February 22, 2016 (approval No. LL-201602022).
Collapse
Affiliation(s)
- Ye Xiong
- Department of Physiology, School of Basic Medical Sciences; Department of Neurosurgery, Qilu Hospital of Shandong University and Brain Science Research Institute, Shandong University, Jinan, Shandong Province, China
| | - Dan-Qing Xin
- Department of Physiology, School of Basic Medical Sciences, Shandong University, Jinan, Shandong Province, China
| | - Quan Hu
- Department of Physiology, School of Basic Medical Sciences, Shandong University, Jinan; Department of Neurosurgery, Taian Central Hospital, Taian, Shandong Province, China
| | - Ling-Xiao Wang
- Department of Physiology, School of Basic Medical Sciences; Department of Neurosurgery, Qilu Hospital of Shandong University and Brain Science Research Institute, Shandong University, Jinan, Shandong Province, China
| | - Jie Qiu
- Department of Physiology, School of Basic Medical Sciences, Shandong University, Jinan, Shandong Province, China
| | - Hong-Tao Yuan
- Department of Physiology, School of Basic Medical Sciences, Shandong University, Jinan, Shandong Province, China
| | - Xi-Li Chu
- Department of Physiology, School of Basic Medical Sciences, Shandong University, Jinan, Shandong Province, China
| | - De-Xiang Liu
- Department of Medical Psychology and Ethics, School of Basic Medicine Sciences, Shandong University, Jinan, Shandong Province, China
| | - Gang Li
- Department of Neurosurgery, Qilu Hospital of Shandong University and Brain Science Research Institute, Shandong University, Jinan, Shandong Province, China
| | - Zhen Wang
- Department of Physiology, School of Basic Medical Sciences, Shandong University, Jinan, Shandong Province, China
| |
Collapse
|
27
|
Li Y, Song AM, Fu Y, Walayat A, Yang M, Jian J, Liu B, Xia L, Zhang L, Xiao D. Perinatal nicotine exposure alters Akt/GSK-3β/mTOR/autophagy signaling, leading to development of hypoxic-ischemic-sensitive phenotype in rat neonatal brain. Am J Physiol Regul Integr Comp Physiol 2019; 317:R803-R813. [PMID: 31553625 DOI: 10.1152/ajpregu.00218.2019] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Maternal cigarette smoking is a major perinatal insult that contributes to an increased risk of cardiovascular and neurodevelopmental diseases in offspring. Our previous studies revealed that perinatal nicotine exposure reprograms a sensitive phenotype in neonatal hypoxic-ischemic encephalopathy (HIE), yet the underlying molecular mechanisms remain largely elusive. The present study tested the hypothesis that perinatal nicotine exposure impacts autophagy signaling in the developing brain, resulting in enhanced susceptibility to neonatal HIE. Nicotine was administered to pregnant rats via subcutaneous osmotic minipumps. Neonatal HIE was conducted in 9-day-old male rat pups. Protein kinase B/glycogen synthase kinase-3β/mammalian target of rapamycin (Akt/GSK-3β/mTOR) signaling and key autophagy markers were determined by Western blotting analysis. Rapamycin and MK2206 were administered via intracerebroventricular injection. Nicotine exposure significantly inhibited autophagy activities in neonatal brain tissues, characterized by an increased ratio of phosphoylated (p-) to total mTOR protein expression but reduced levels of autophagy-related 5, Beclin 1, and LC3βI/II. Treatment with mTOR inhibitor rapamycin effectively blocked nicotine-mediated autophagy deficiency and, more importantly, reversed the nicotine-induced increase in HI brain infarction. In addition, nicotine exposure significantly upregulated p-Akt and p-GSK-3β. Treatment with the Akt selective inhibitor MK2206 reversed the enhanced p-Akt and p-GSK-3β, restored basal autophagic flux, and abolished nicotine-mediated HI brain injury. These findings suggest that perinatal nicotine-mediated alteration of Akt/GSK-3β/mTOR signaling plays a key role in downregulation of autophagic flux, which contributes to the development of hypoxia/ischemia-sensitive phenotype in the neonatal brain.
Collapse
Affiliation(s)
- Yong Li
- Lawrence D. Longo MD Center for Perinatal Biology, Division of Pharmacology, Department of Basic Sciences, Loma Linda University School of Medicine, Loma Linda, California
| | - Andrew M Song
- Lawrence D. Longo MD Center for Perinatal Biology, Division of Pharmacology, Department of Basic Sciences, Loma Linda University School of Medicine, Loma Linda, California
| | - Yingjie Fu
- Lawrence D. Longo MD Center for Perinatal Biology, Division of Pharmacology, Department of Basic Sciences, Loma Linda University School of Medicine, Loma Linda, California
| | - Andrew Walayat
- Lawrence D. Longo MD Center for Perinatal Biology, Division of Pharmacology, Department of Basic Sciences, Loma Linda University School of Medicine, Loma Linda, California
| | - Meizi Yang
- Lawrence D. Longo MD Center for Perinatal Biology, Division of Pharmacology, Department of Basic Sciences, Loma Linda University School of Medicine, Loma Linda, California.,Department of Pharmacology, Binzhou Medical University, Yantai, China
| | - Jie Jian
- Lawrence D. Longo MD Center for Perinatal Biology, Division of Pharmacology, Department of Basic Sciences, Loma Linda University School of Medicine, Loma Linda, California.,Department of Cardiac Surgery, Guangdong Cardiovascular Institute, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangdong, China
| | - Bailin Liu
- Lawrence D. Longo MD Center for Perinatal Biology, Division of Pharmacology, Department of Basic Sciences, Loma Linda University School of Medicine, Loma Linda, California
| | - Liang Xia
- Lawrence D. Longo MD Center for Perinatal Biology, Division of Pharmacology, Department of Basic Sciences, Loma Linda University School of Medicine, Loma Linda, California.,Department of Surgical Intensive Care Unit, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Lubo Zhang
- Lawrence D. Longo MD Center for Perinatal Biology, Division of Pharmacology, Department of Basic Sciences, Loma Linda University School of Medicine, Loma Linda, California
| | - Daliao Xiao
- Lawrence D. Longo MD Center for Perinatal Biology, Division of Pharmacology, Department of Basic Sciences, Loma Linda University School of Medicine, Loma Linda, California
| |
Collapse
|
28
|
Hortensius LM, van Elburg RM, Nijboer CH, Benders MJNL, de Theije CGM. Postnatal Nutrition to Improve Brain Development in the Preterm Infant: A Systematic Review From Bench to Bedside. Front Physiol 2019; 10:961. [PMID: 31404162 PMCID: PMC6677108 DOI: 10.3389/fphys.2019.00961] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2019] [Accepted: 07/11/2019] [Indexed: 12/12/2022] Open
Abstract
Background: Preterm infants are at high risk for Encephalopathy of Prematurity and successive adverse neurodevelopmental outcome. Adequate nutrition is crucial for healthy brain development. Maternal breast milk is first choice of post-natal enteral nutrition for preterm infants. However, breast milk contains insufficient nutrient quantities to meet the greater nutritional needs of preterm infants, meaning that supplementation is recommended. Aim: To provide an overview of current literature on potential nutritional interventions for improvement of neurodevelopmental outcome in preterm infants, by taking a bench to bedside approach from pre-clinical models of neonatal brain injury to randomized controlled clinical trials (RCTs) in preterm infants. Methods: Separate clinical and pre-clinical searches were performed in Medline and Embase for English written papers published between 08/2008 and 08/2018 that studied a single nutritional component. Papers were included if one of the following components was studied: lipids, carbohydrates, proteins, vitamins, minerals, probiotics, prebiotics, oligosaccharides, fatty acids, or amino acids, with brain injury, brain development or neurodevelopmental outcome as outcome measure in preterm infants (gestational age <32 weeks and/or birth weight <1,500 g) or in animal models of neonatal brain injury. Results: In total, 2,671 pre-clinical studies and 852 RCTs were screened, of which 24 pre-clinical and 22 RCTs were included in this review. In these trials supplementation with amino acids and protein, lipids, probiotics (only clinical), prebiotics (only clinical), vitamins, and minerals was studied. All included pre-clinical studies show positive effect of supplementation on brain injury and/or neurodevelopment. Although some nutrients, such as glutamine, show promising short term outcome in clinical studies, no evident long term effect of any supplemented nutrient was found. Main limitations were inclusion of studies no older than 10 years at time of search and studies that focused on single nutritional components only. Conclusion: Even though many pre-clinical trials demonstrate promising effects of different nutritional interventions on reducing brain injury and/or improving neurodevelopmental outcome, these positive effects have so far not evidently been demonstrated in RCTs. More clinically relevant animal models and long term follow up after clinical trials are needed to move novel nutritional therapies from bench to bedside of preterm infants.
Collapse
Affiliation(s)
- Lisa M. Hortensius
- Department of Neonatology, University Medical Center Utrecht, Utrecht University, Utrecht, Netherlands
| | - Ruurd M. van Elburg
- Emma Children's Hospital, Amsterdam UMC, University of Amsterdam, Amsterdam, Netherlands
- Danone Nutricia Research, Utrecht, Netherlands
| | - Cora H. Nijboer
- Laboratory of Neuroimmunology and Developmental Origins of Disease, University Medical Center Utrecht, Utrecht University, Utrecht, Netherlands
| | - Manon J. N. L. Benders
- Department of Neonatology, University Medical Center Utrecht, Utrecht University, Utrecht, Netherlands
- Laboratory of Neuroimmunology and Developmental Origins of Disease, University Medical Center Utrecht, Utrecht University, Utrecht, Netherlands
| | - Caroline G. M. de Theije
- Laboratory of Neuroimmunology and Developmental Origins of Disease, University Medical Center Utrecht, Utrecht University, Utrecht, Netherlands
| |
Collapse
|
29
|
Hydrogen-rich saline promotes microglia M2 polarization and complement-mediated synapse loss to restore behavioral deficits following hypoxia-ischemic in neonatal mice via AMPK activation. J Neuroinflammation 2019; 16:104. [PMID: 31103039 PMCID: PMC6525972 DOI: 10.1186/s12974-019-1488-2] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2019] [Accepted: 04/25/2019] [Indexed: 12/23/2022] Open
Abstract
Background Hypoxia-ischemia (HI) during the perinatal period is one of the most common causes of acute mortality and chronic neurologic morbidity. Hydrogen-rich saline (HS) treatment in neonatal mice has been reported to alleviate brain injury following HI, but the mechanisms involved are not known. Methods A modified version of the Rice-Vannucci method for the induction of neonatal HI brain injury was performed on postnatal day 7 mouse pups. Animals or BV2-cells received HS and an AMPK inhibitor at indicative time post-injury. Results In the current study, we show that HS treatment attenuated the accumulation of CD11b+/CD45high cells, suppressed HI-induced neuro-inflammation, induced microglial anti-inflammatory M2 polarization, was associated with promoting AMPK activation, and inhibited nuclear factor-κB activation as demonstrated both in vivo and in vitro. In addition, HS treatment reversed HI-induced neurological disabilities, was associated with improving damaged synapses, and restored the expression levels of synaptophysin and postsynaptic density protein 95 following HI insult. Furthermore, HI insult which increased levels of complement component C1q, C3, and C3aR1 was observed. Importantly, C1q deposited in the infarct core and lesion boundary zone following HI injury, was found to co-localize within regions of synapse loss, whereas HS treatment reversed these effects of HI on synapse loss and complement component levels. Notably, the AMPK inhibitor reversed the beneficial effects of HS as described above. Conclusions These results demonstrate that HS restored behavioral deficits after HI in neonatal mice. These beneficial effects, in part, involve promoting microglia M2 polarization and complement-mediated synapse loss via AMPK activation. Electronic supplementary material The online version of this article (10.1186/s12974-019-1488-2) contains supplementary material, which is available to authorized users.
Collapse
|
30
|
Wang J, Wu D, Wang H. Hydrogen sulfide plays an important protective role by influencing autophagy in diseases. Physiol Res 2019; 68:335-345. [PMID: 30904008 DOI: 10.33549/physiolres.933996] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Abstract
Autophagy can regulate cell growth, proliferation, and stability of cell environment. Its dysfunction can be involved in a variety of diseases. Hydrogen sulfide (H(2)S) is an important signaling molecule that regulates many physiological and pathological processes. Recent studies indicate that H(2)S plays an important protective role in many diseases through influencing autophagy, but its mechanism is not fully understood. This article reviewed the progress about the effect of H(2)S on autophagy in diseases in recent years in order to provide theoretical basis for the further research on the interaction of H(2)S and autophagy and the mechanisms involved.
Collapse
Affiliation(s)
- J Wang
- School of Basic Medical Science, Henan University, Kaifeng, Henan, China.
| | | | | |
Collapse
|
31
|
Zhou X, Chu X, Xin D, Li T, Bai X, Qiu J, Yuan H, Liu D, Wang D, Wang Z. L-Cysteine-Derived H 2S Promotes Microglia M2 Polarization via Activation of the AMPK Pathway in Hypoxia-Ischemic Neonatal Mice. Front Mol Neurosci 2019; 12:58. [PMID: 30914921 PMCID: PMC6421291 DOI: 10.3389/fnmol.2019.00058] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2018] [Accepted: 02/15/2019] [Indexed: 12/19/2022] Open
Abstract
We have reported previously that L-cysteine-derived hydrogen sulfide (H2S) demonstrates a remarkable neuroprotective effect against hypoxia-ischemic (HI) insult in neonatal animals. Here, we assessed some of the mechanisms of this protection as exerted by L-cysteine. Specifically, we examined the capacity for L-cysteine to stimulate microglial polarization of the M2 phenotype and its modulation of complement expression in response to HI in neonatal mice. L-cysteine treatment suppressed the production of inflammatory cytokines, while dramatically up-regulating levels of anti-inflammatory cytokines in the damaged cortex. This L-cysteine administration promoted the conversion of microglia from an inflammatory M1 to an anti-inflammatory M2 phenotype, an effect which was associated with inhibiting the p38 and/or JNK pro-inflammatory pathways, nuclear factor-κB activation and a decrease in HI-derived levels of the C1q, C3a and C3a complement receptor proteins. Notably, blockade of H2S-production clearly prevented L-cysteine-mediated M2 polarization and complement expression. L-cysteine also inhibited neuronal apoptosis as induced by conditioned media from activated M1 microglia in vitro. We also show that L-cysteine promoted AMP-activated protein kinase (AMPK) activation and the AMPK inhibitor abolished these anti-apoptotic and anti-inflammatory effects of L-cysteine. Taken together, our findings demonstrate that L-cysteine-derived H2S attenuated neuronal apoptosis after HI and suggest that these effects, in part, result from enhancing microglia M2 polarization and modulating complement expression via AMPK activation.
Collapse
Affiliation(s)
- Xin Zhou
- Department of Physiology, Shandong University School of Basic Medical Sciences, Jinan, China.,Department of Spinal Surgery, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, China
| | - Xili Chu
- Department of Physiology, Shandong University School of Basic Medical Sciences, Jinan, China
| | - Danqing Xin
- Department of Physiology, Shandong University School of Basic Medical Sciences, Jinan, China
| | - Tingting Li
- Department of Physiology, Shandong University School of Basic Medical Sciences, Jinan, China
| | - Xuemei Bai
- Department of Physiology, Shandong University School of Basic Medical Sciences, Jinan, China
| | - Jie Qiu
- Department of Physiology, Shandong University School of Basic Medical Sciences, Jinan, China.,Department of Spinal Surgery, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, China
| | - Hongtao Yuan
- Department of Physiology, Shandong University School of Basic Medical Sciences, Jinan, China.,Department of Medical Psychology, Shandong University School of Basic Medical Sciences, Jinan, China
| | - Dexiang Liu
- Department of Medical Psychology, Shandong University School of Basic Medical Sciences, Jinan, China
| | - Dachuan Wang
- Department of Spinal Surgery, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, China
| | - Zhen Wang
- Department of Physiology, Shandong University School of Basic Medical Sciences, Jinan, China
| |
Collapse
|
32
|
Zhang B, Chen X, Lv Y, Wu X, Gui L, Zhang Y, Qiu J, Song G, Yao W, Wan L, Zhang C. Cdh1 overexpression improves emotion and cognitive-related behaviors via regulating hippocampal neuroplasticity in global cerebral ischemia rats. Neurochem Int 2019; 124:225-237. [PMID: 30677437 DOI: 10.1016/j.neuint.2019.01.015] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2018] [Revised: 12/06/2018] [Accepted: 01/15/2019] [Indexed: 01/08/2023]
Abstract
Post-stroke survivors exhibited cognitive deficits and performed emotional impairment. However, the effect of global cerebral ischemia on standard behavioral measures of emotionality and underlying mechanism remain largely unknown. Our previous work identified that down-regulation of Cdh1 contributed to ischemic neuronal death in rat, thus we hypothesized that Cdh1 exerts a role in emotionality after cerebral ischemia, and we investigated the effect of Cdh1 overexpression on neurogenic behaviors and possible mechanisms in transient global cerebral ischemia reperfusion (tGCI/R) rats. A series of behavioral tests were used to evaluate emotion and cognitive related behaviors, and molecular biological techniques were employed to investigate hippocampal neuroplasticity. The results showed that tGCI/R rats displayed anxiety- and depression-like behaviors and a certain degree of cognitive impairment, and these abnormal behaviors accompanied with a loss of hippocampal synapses and dendritic spines, disruption of dendrite arborization and decline in the level of GAP-43, synaptophysin, synapsin and PSD-95. However, Cdh1 overexpression improved negative emotionality, ameliorated cognitive deficits, rescued hippocampal synapses loss, prevented dendritic network disorganization, and increased the level of synaptic-associated proteins after tGCI/R. Taken together, these findings suggest that Cdh1 overexpression exerts a neuroprotective effect by regulating hippocampal neuroplasticity thus improving negative emotionality and cognitive deficits after tGCI/R.
Collapse
Affiliation(s)
- Bo Zhang
- Department of Anesthesiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China; Department of Anesthesiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Xuhui Chen
- Department of Anesthesiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Youyou Lv
- Department of Anesthesiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China; Department of Anesthesiology, The Fifth Affiliated Hospital of Sun Yat-Sen University, Zhuhai, 510275, China
| | - Xi Wu
- Department of Anesthesiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China; Department of Anesthesiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Lingli Gui
- Department of Anesthesiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Yue Zhang
- Department of Anesthesiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Jin Qiu
- Department of Anesthesiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Guizhi Song
- Department of Quality Inspection, Wuhan Institute of Biological Products, Wuhan, 430060, China
| | - Wenlong Yao
- Department of Anesthesiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Li Wan
- Department of Anesthesiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China.
| | - Chuanhan Zhang
- Department of Anesthesiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China.
| |
Collapse
|
33
|
Autophagy and Akt in the protective effect of erythropoietin helix B surface peptide against hepatic ischaemia/reperfusion injury in mice. Sci Rep 2018; 8:14703. [PMID: 30279567 PMCID: PMC6168561 DOI: 10.1038/s41598-018-33028-3] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2017] [Accepted: 09/17/2018] [Indexed: 12/27/2022] Open
Abstract
Helix B surface peptide (HBSP) is an erythropoietin (EPO)-derived peptide that protects tissue from the risks of elevated blood pressure and thrombosis. This study focused on the protection of HBSP in hepatic ischaemia/reperfusion (I/R) by enhancing the level of autophagy. In detail, we randomly divided C57BL/6 mice into sham-operated, hepatic ischaemia/reperfusion (I/R), I/R + HBSP, I/R + HBSP + 3-methyladenine (autophagy inhibitor), I/R + HBSP + rapamycin (mTOR inhibitor), and I/R + HBSP + Ly294002 (Akt inhibitor) groups. We assessed alanine aminotransferase (ALT), aspartate aminotransferase (AST) and lactate dehydrogenase (LDH) levels in mouse sera, and performed haematoxylin/eosin (HE) staining, immunohistochemistry, electron microscopy, immunofluorescence microscopy, and western blotting on liver tissue to detect the degree of liver injury, liver apoptosis, autophagy, and the expression of microtubule associated protein 1 light chain 3 alpha (Map1lc3, or LC3), Beclin 1, phospho-mTOR, mTOR, phospho-Akt (P-Akt), and Akt. HBSP relieved hepatic I/R injury in a concentration-independent manner. The expression of LC3II, LC3I, and Beclin 1, and the formation of autophagosomes, in the I/R + HBSP group were higher than those in the I/R group. The protective effects of HBSP were abolished by 3-methyladenine and, to a lesser extent, Ly294002, but enhanced by rapamycin. Furthermore, In vivo, HBSP also protected against hypoxia injury induced by cobalt chloride (CoCl2) through improving the level of autophagy. Therefore, HBSP protected against hepatic I/R injury, mainly via regulating autophagy by targeting mTOR.
Collapse
|