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Brockie S, Zhou C, Fehlings MG. Resident immune responses to spinal cord injury: role of astrocytes and microglia. Neural Regen Res 2024; 19:1678-1685. [PMID: 38103231 PMCID: PMC10960308 DOI: 10.4103/1673-5374.389630] [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: 05/04/2023] [Revised: 09/08/2023] [Accepted: 10/18/2023] [Indexed: 12/18/2023] Open
Abstract
Spinal cord injury can be traumatic or non-traumatic in origin, with the latter rising in incidence and prevalence with the aging demographics of our society. Moreover, as the global population ages, individuals with co-existent degenerative spinal pathology comprise a growing number of traumatic spinal cord injury cases, especially involving the cervical spinal cord. This makes recovery and treatment approaches particularly challenging as age and comorbidities may limit regenerative capacity. For these reasons, it is critical to better understand the complex milieu of spinal cord injury lesion pathobiology and the ensuing inflammatory response. This review discusses microglia-specific purinergic and cytokine signaling pathways, as well as microglial modulation of synaptic stability and plasticity after injury. Further, we evaluate the role of astrocytes in neurotransmission and calcium signaling, as well as their border-forming response to neural lesions. Both the inflammatory and reparative roles of these cells have eluded our complete understanding and remain key therapeutic targets due to their extensive structural and functional roles in the nervous system. Recent advances have shed light on the roles of glia in neurotransmission and reparative injury responses that will change how interventions are directed. Understanding key processes and existing knowledge gaps will allow future research to effectively target these cells and harness their regenerative potential.
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Affiliation(s)
- Sydney Brockie
- Division of Genetics and Development, Krembil Research Institute, University Health Network, Toronto, ON, Canada
- Institute of Medical Science, University of Toronto, Toronto, ON, Canada
| | - Cindy Zhou
- Division of Genetics and Development, Krembil Research Institute, University Health Network, Toronto, ON, Canada
- Institute of Medical Science, University of Toronto, Toronto, ON, Canada
| | - Michael G. Fehlings
- Division of Genetics and Development, Krembil Research Institute, University Health Network, Toronto, ON, Canada
- Institute of Medical Science, University of Toronto, Toronto, ON, Canada
- Division of Neurosurgery and Spine Program, Department of Surgery, University of Toronto, Toronto, ON, Canada
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2
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Zheng Y, Shi D, Song D, Chen K, Wen F, Zhang J, Xue W, Wu Z. Novel mandelic acid derivatives containing piperazinyls as potential candidate fungicides against Monilinia fructicola: Design, synthesis and mechanism study. Bioorg Chem 2024; 151:107647. [PMID: 39024805 DOI: 10.1016/j.bioorg.2024.107647] [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: 05/05/2024] [Revised: 07/12/2024] [Accepted: 07/14/2024] [Indexed: 07/20/2024]
Abstract
Brown rot of stone fruit, a disease caused by the ascomycete fungus Monilinia fructicola, has caused significant losses to the agricultural industry. In order to explore and discover potential fungicides against M. fructicola, thirty-one novel mandelic acid derivatives containing piperazine moieties were designed and synthesized based on the amide skeleton. Among them, target compound Z31 exhibited obvious in vitro antifungal activity with the EC50 value of 11.8 mg/L, and significant effects for the postharvest pears (79.4 % protective activity and 70.5 % curative activity) at a concentration of 200 mg/L. Antifungal activity for the target compounds was found to be significantly improved by the large steric hindrance of the R1 groups and the electronegative of the piperazines in the molecular structure, according to a three-dimensional quantitative structure-activity relationship (3D-QSAR) analysis. Further mechanism studies have demonstrated that the compound Z31 can disrupt cell membrane integrity, resulting in increased membrane permeability, release of intracellular electrolytes, and affect the normal growth of hyphae. Additional, morphological study also indicated that Z31 may disrupt the integrity of the membrane by inducing generate excess endogenous reactive oxygen species (ROS) and resulting in the peroxidation of cellular lipids, which was further verified by the detection of malondialdehyde (MDA) content. These studies have provided the basis for the creation of novel fungicides to prevent brown rot in stone fruits.
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Affiliation(s)
- Ya Zheng
- State Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Detan Shi
- State Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Dandan Song
- State Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Kuai Chen
- State Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Fanglin Wen
- State Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Jinlian Zhang
- Microbiology Research Institute, Guangxi Academy of Agricultural Sciences, Nanning, Guangxi 530007, China.
| | - Wei Xue
- State Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China.
| | - Zhibing Wu
- State Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China.
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Kumar Saini S, Singh D. Mitochondrial mechanisms in Cerebral Ischemia-Reperfusion Injury: Unravelling the intricacies. Mitochondrion 2024; 77:101883. [PMID: 38631511 DOI: 10.1016/j.mito.2024.101883] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2024] [Revised: 04/05/2024] [Accepted: 04/13/2024] [Indexed: 04/19/2024]
Abstract
Cerebral ischemic stroke is a major contributor to physical impairments and premature death worldwide. The available reperfusion therapies for stroke in the form of mechanical thrombectomy and intravenous thrombolysis increase the risk of cerebral ischemia-reperfusion (I-R) injury due to sudden restoration of blood supply to the ischemic region. The injury is manifested by hemorrhagic transformation, worsening of neurological impairments, cerebral edema, and progression to infarction in surviving patients. A complex network of multiple pathological processes has been known to be involved in the pathogenesis of I-R injury. Primarily, 3 major contributors namely oxidative stress, neuroinflammation, and mitochondrial failure have been well studied in I-R injury. A transcription factor, Nrf2 (Nuclear factor erythroid 2-related factor 2) plays a crucial defensive role in resisting the deleterious effects of I-R injury and potentiating the cellular protective mechanisms. In this review, we delve into the critical function of mitochondria and Nrf2 in the context of cerebral I-R injury. We summarized how oxidative stress, neuroinflammation, and mitochondrial anomaly contribute to the pathophysiology of I-R injury and further elaborated the role of Nrf2 as a pivotal guardian of cellular integrity. The review further highlighted Nrf2 as a putative therapeutic target for mitochondrial dysfunction in cerebral I-R injury management.
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Affiliation(s)
- Shiv Kumar Saini
- Pharmacology and Toxicology Laboratory, Dietetics and Nutrition Technology Division, CSIR-Institute of Himalayan Bioresource Technology, Palampur 176061, Himachal Pradesh, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Damanpreet Singh
- Pharmacology and Toxicology Laboratory, Dietetics and Nutrition Technology Division, CSIR-Institute of Himalayan Bioresource Technology, Palampur 176061, Himachal Pradesh, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India.
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4
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Gu L, Wang Q, Xu G, Liu D. Functional genetic variation in 3'UTR of PARP1 indicates a decreased risk and a better severity of ischemic stroke. Int J Neurosci 2024; 134:804-809. [PMID: 36448327 DOI: 10.1080/00207454.2022.2151907] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2021] [Revised: 01/17/2022] [Accepted: 03/17/2022] [Indexed: 12/05/2022]
Abstract
Aim of the study: Polymorphisms of DNA repair enzyme gene may alter the ability of damage repair, ischemic stroke susceptibility and outcome. This study aimed to explore the association of polymorphisms in PARP1 and the effects of interactions between genes in Chinese.Materials and methods: A total of 500 patients and 500 healthy controls were enrolled for genotyping. Results: Clinical information analysis revealed higher levels of alcohol and smoking exposure in patients with ischemic stroke, as well as chronic conditions such as diabetes, hypertension, and higher serum triglycerides concentration. In addition, Polymorphism in PARP1 rs8679 was significantly associated with the decreased ischemic stroke risk. Patients harboring the PARP1 rs8679 AG/GG genotype had a better initial stroke, and as for the mRNA level of PARP1, it was suppressed with mutant genotype in comparison with the wild genotype. Finally, the suppressed of PARP1 was induced by gain-binding ability of miR-124-5p through 3'UTR directly binding.Conclusions: In conclusion, our study demonstrates that the SNP rs8679 in PARP1 3'-UTR might act as a protective factor for the outcome of patients with ischemic stroke.
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Affiliation(s)
- Lujun Gu
- Department of Physical Medicine and Rehabilitation, Jiangyin Fifth People's Hospital, Wuxi, China
| | - Qingguang Wang
- Department of Neurology, The Affiliated Jiangyin People's Hospital of Southeast University Medical College, Wuxi, China
| | - Gangtao Xu
- Department of Physical Medicine and Rehabilitation, Jiangyin Fifth People's Hospital, Wuxi, China
| | - Dinghua Liu
- Department of Neurology, The Affiliated Jiangyin People's Hospital of Southeast University Medical College, Wuxi, China
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Zhang Y, Zhang N, Xing J, Sun Y, Jin X, Shen C, Cheng L, Wang Y, Wang X. In situ hydrogel based on Cu-Fe 3O 4 nanoclusters exploits oxidative stress and the ferroptosis/cuproptosis pathway for chemodynamic therapy. Biomaterials 2024; 311:122675. [PMID: 38943822 DOI: 10.1016/j.biomaterials.2024.122675] [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: 04/08/2024] [Revised: 06/07/2024] [Accepted: 06/15/2024] [Indexed: 07/01/2024]
Abstract
Chemodynamic therapy (CDT) involving the use of metal nanozymes presents new opportunities for the treatment of deep-seated tumors. However, the lower ROS catalytic rate and dependence on high H2O2 concentrations affect therapeutic efficacy. To address this issue, a hydrogel was constructed for the treatment of osteosarcoma by combining Cu-Fe3O4 nanozymes (NCs) and artemisinin (AS) coencapsulated in situ with sodium alginate (ALG) and calcium ions. This hydrogel can release nanoparticles and AS within tumor tissue for an extended period of time, utilizing the multienzyme activity of NCs to achieve ROS accumulation. The carbon radicals (•C) generated from the interaction of Fe2+/Cu2+ with AS amplify oxidative stress, leading to tumor cell damage. Simultaneously, the NCs activate ferroptosis via the GPX4 pathway by depleting GSH and activate cuproptosis via the DLAT pathway by causing intracellular copper overload, enhancing therapeutic efficacy. In vitro experiments confirmed that the NCs-AS-ALG hydrogel has an excellent tumor cell killing effect, while in vivo experimental results demonstrated that it can effectively eliminate tumors with excellent biocompatibility, providing a new approach for osteosarcoma treatment.
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Affiliation(s)
- Yiqun Zhang
- Department of Orthopedics, The First Affiliated Hospital of Anhui Medical University, Hefei, 230022, PR China; College and Hospital of Stomatology, Anhui Medical University, Key Lab. of Oral Diseases Research of Anhui Province, Hefei, 230032, PR China
| | - Ni Zhang
- Department of Thoracic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, PR China
| | - Jianghao Xing
- School of Biomedical Engineering, Research and Engineering Center of Biomedical Materials, Anhui Provincial Institute of Translational Medicine, Anhui Medical University, Hefei, 230032, PR China
| | - Yiwei Sun
- School of Biomedical Engineering, Research and Engineering Center of Biomedical Materials, Anhui Provincial Institute of Translational Medicine, Anhui Medical University, Hefei, 230032, PR China
| | - Xu Jin
- School of Biomedical Engineering, Research and Engineering Center of Biomedical Materials, Anhui Provincial Institute of Translational Medicine, Anhui Medical University, Hefei, 230032, PR China
| | - Cailiang Shen
- Department of Orthopedics, The First Affiliated Hospital of Anhui Medical University, Hefei, 230022, PR China
| | - Liang Cheng
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, Suzhou, 215123, PR China
| | - Yuanyin Wang
- College and Hospital of Stomatology, Anhui Medical University, Key Lab. of Oral Diseases Research of Anhui Province, Hefei, 230032, PR China.
| | - Xianwen Wang
- College and Hospital of Stomatology, Anhui Medical University, Key Lab. of Oral Diseases Research of Anhui Province, Hefei, 230032, PR China; School of Biomedical Engineering, Research and Engineering Center of Biomedical Materials, Anhui Provincial Institute of Translational Medicine, Anhui Medical University, Hefei, 230032, PR China.
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Zhao Q, Chen L, Zhang X, Yang H, Li Y, Li P. β-elemene promotes microglial M2-like polarization against ischemic stroke via AKT/mTOR signaling axis-mediated autophagy. Chin Med 2024; 19:86. [PMID: 38879549 PMCID: PMC11179363 DOI: 10.1186/s13020-024-00946-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2024] [Accepted: 05/14/2024] [Indexed: 06/19/2024] Open
Abstract
BACKGROUND Resident microglia- and peripheric macrophage-mediated neuroinflammation plays a predominant role in the occurrence and development of ischemic stroke. Microglia undergo polarization to M1/M2-like phenotype under stress stimulation, which mediates intracellular inflammatory response. β-elemene is a natural sesquiterpene and possesses potent anti-inflammatory activity. This study aimed to investigate the anti-inflammatory efficacy and mechanism of β-elemene in ischemic stroke from the perspective of balancing microglia M1/M2-like polarization. METHODS The middle cerebral artery occlusion (MCAO) model and photothrombotic stroke model were established to explore the regulation effect of β-elemene on the cerebral ischemic injury. The LPS and IFN-γ stimulated BV-2 cells were used to demonstrate the anti-inflammatory effects and potential mechanism of β-elemene regulating M1/M2-like polarization in vitro. RESULTS In C57BL/6 J mice subjected to MCAO model and photothrombotic stroke model, β-elemene attenuated neurological deficit, reduced the infarction volume and neuroinflammation, thus improving ischemic stroke injury. β-elemene promoted the phenotype transformation of microglia from M1-like to M2-like, which prevented neurons from oxygen and glucose deprivation/reoxygenation (OGD/R) injury by inhibiting inflammatory factor release, thereby reducing neuronal apoptosis. Mechanically, β-elemene prevented the activation of TLR4/NF-κΒ and MAPK signaling pathway and increased AKT/mTOR mediated-autophagy, thereby promoting M2-like polarization of microglia. CONCLUSIONS These results indicated that β-elemene improved cerebral ischemic injury and promoted the transformation of microglia phenotype from M1-like to M2-like, at least in part, through AKT/mTOR-mediated autophagy. This study demonstrated that β-elemene might serve as a promising drug for alleviating ischemic stroke injury.
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Affiliation(s)
- Qiong Zhao
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, #639 Longmian Dadao, Nanjing, 211198, China
| | - Lu Chen
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, #639 Longmian Dadao, Nanjing, 211198, China
| | - Xin Zhang
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, #639 Longmian Dadao, Nanjing, 211198, China
| | - Hua Yang
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, #639 Longmian Dadao, Nanjing, 211198, China
| | - Yi Li
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, #639 Longmian Dadao, Nanjing, 211198, China.
| | - Ping Li
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, #639 Longmian Dadao, Nanjing, 211198, China.
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Chen HQ, Zhang QG, Zhang XY, Zeng XB, Xu JW, Ling S. 4'-O-methylbavachalcone alleviates ischemic stroke injury by inhibiting parthanatos and promoting SIRT3. Eur J Pharmacol 2024; 972:176557. [PMID: 38574839 DOI: 10.1016/j.ejphar.2024.176557] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2024] [Revised: 03/28/2024] [Accepted: 04/02/2024] [Indexed: 04/06/2024]
Abstract
Cerebral ischemia-reperfusion injury (CIRI) can induce massive death of ischemic penumbra neurons via oxygen burst, exacerbating brain damage. Parthanatos is a form of caspase-independent cell death involving excessive activation of PARP-1, closely associated with intense oxidative stress following CIRI. 4'-O-methylbavachalcone (MeBavaC), an isoprenylated chalcone component in Fructus Psoraleae, has potential neuroprotective effects. This study primarily investigates whether MeBavaC can act on SIRT3 to alleviate parthanatos of ischemic penumbra neurons induced by CIRI. MeBavaC was oral gavaged to the middle cerebral artery occlusion-reperfusion (MCAO/R) rats after occlusion. The effects of MeBavaC on cerebral injury were detected by the neurological deficit score and cerebral infarct volume. In vitro, PC-12 cells were subjected to oxygen and glucose deprivation/reoxygenation (OGD/R), and assessed cell viability and cell injury. Also, the levels of ROS, mitochondrial membrane potential (MMP), and intracellular Ca2+ levels were detected to reflect mitochondrial function. We conducted western blotting analyses of proteins involved in parthanatos and related signaling pathways. Finally, the exact mechanism between the neuroprotection of MeBavaC and parthanatos was explored. Our results indicate that MeBavaC reduces the cerebral infarct volume and neurological deficit scores in MCAO/R rats, and inhibits the decreased viability of PC-12 cells induced by OGD/R. MeBavaC also downregulates the expression of parthanatos-related death proteins PARP-1, PAR, and AIF. However, this inhibitory effect is weakened after the use of a SIRT3 inhibitor. In conclusion, the protective effect of MeBavaC against CIRI may be achieved by inhibiting parthanatos of ischemic penumbra neurons through the SIRT3-PARP-1 axis.
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Affiliation(s)
- Hong-Qing Chen
- School of Integrative Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China.
| | - Qing-Guang Zhang
- Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China.
| | - Xin-Yuan Zhang
- School of Integrative Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China.
| | - Xiang-Bing Zeng
- School of Integrative Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China.
| | - Jin-Wen Xu
- Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China.
| | - Shuang Ling
- School of Integrative Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China; Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China.
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Park HW, Lee CE, Kim S, Jeong WJ, Kim K. Ex Vivo Peptide Decoration Strategies on Stem Cell Surfaces for Augmenting Endothelium Interaction. TISSUE ENGINEERING. PART B, REVIEWS 2024; 30:327-339. [PMID: 37830185 DOI: 10.1089/ten.teb.2023.0210] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/14/2023]
Abstract
Ischemic vascular diseases remain leading causes of disability and death. Although various clinical therapies have been tried, reperfusion injury is a major issue, occurring when blood recirculates at the damaged lesion. As an alternative approach, cell-based therapy has emerged. Mesenchymal stem cells (MSCs) are attractive cellular candidates due to their therapeutic capacities, including differentiation, safety, angiogenesis, and tissue repair. However, low levels of receptors/ligands limit targeted migration of stem cells. Thus, it is important to improve homing efficacy of transplanted MSCs toward damaged endothelium. Among various MSC modulations, ex vivo cell surface engineering could effectively augment homing efficiency by decorating MSC surfaces with alternative receptors/ligands, thereby facilitating intercellular interactions with the endothelium. Especially, exogenous decoration of peptides onto stem cell surfaces could provide appropriate functional signaling moieties to achieve sufficient MSC homing. Based on their protein-like functionalities, high modularity in molecular design, and high specific affinities and multivalency to target receptors, peptides could be representative surface-presentable moieties. Moreover, peptides feature a mild synthetic process, enabling precise control of amino acid composition and sequence. Such ex vivo stem cell surface engineering could be achieved primarily by hydrophobic interactions of the cellular bilayer with peptide-conjugated anchor modules and by covalent conjugation between peptides and available compartments in membranes. To this end, this review provides an overview of currently available peptide-mediated, ex vivo stem cell surface engineering strategies for enhancing MSC homing efficiency by facilitating interactions with endothelial cells. Stem cell surface engineering techniques using peptide-based bioconjugates have the potential to revolutionize current vascular disease treatments while addressing their technical limitations.
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Affiliation(s)
- Hee Won Park
- Department of Chemical and Biochemical Engineering, Dongguk University, Seoul, Republic of Korea
| | - Chae Eun Lee
- Department of Chemical and Biochemical Engineering, Dongguk University, Seoul, Republic of Korea
| | - Sungjun Kim
- Department of Chemical and Biochemical Engineering, Dongguk University, Seoul, Republic of Korea
| | - Woo-Jin Jeong
- Department of Biological Engineering, Inha University, Incheon, Republic of Korea
| | - Kyobum Kim
- Department of Chemical and Biochemical Engineering, Dongguk University, Seoul, Republic of Korea
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Wang W, Zhao J, Li Z, Kang X, Li T, Isaev NK, Smirnova EA, Shen H, Liu L, Yu Y. L-DOPA ameliorates hippocampus-based mitochondria respiratory dysfunction caused by GCI/R injury. Biomed Pharmacother 2024; 175:116664. [PMID: 38678966 DOI: 10.1016/j.biopha.2024.116664] [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: 02/05/2024] [Revised: 04/14/2024] [Accepted: 04/24/2024] [Indexed: 05/01/2024] Open
Abstract
Mitochondrial dysmorphology/dysfunction follow global cerebral ischemia-reperfusion (GCI/R) injury, leading to neuronal death. Our previous researches demonstrated that Levodopa (L-DOPA) improves learning and memory impairment in GCI/R rats by increasing synaptic plasticity of hippocampal neurons. This study investigates if L-DOPA, used in Parkinson's disease treatment, alleviates GCI/R-induced cell death by enhancing mitochondrial quality. Metabolomics and transcriptomic results showed that GCI/R damage affected the Tricarboxylic acid (TCA) cycle in the hippocampus. The results of this study show that L-DOPA stabilized mitochondrial membrane potential and ultrastructure in hippocampus of GCI/R rats, increased dopamine level in hippocampus, decreased succinic acid level, and stabilized Ca2+ level in CA1 subregion of hippocampus. As a precursor of dopamine, L-DOPA is presumed to improves mitochondrial function in hippocampus of GCI/R rats. However, dopamine cannot cross the blood-brain barrier, so L-DOPA is used in clinical therapy to supplement dopamine. In this investigation, OGD/R models were established in isolated mouse hippocampal neurons (HT22) and primary rat hippocampal neurons. Notably, dopamine exhibited a multifaceted impact, demonstrating inhibition of mitochondrial reactive oxygen species (mitoROS) production, stabilization of mitochondrial membrane potential and Ca2+ level, facilitation of TCA circulation, promotion of aerobic respiratory metabolism, and downregulation of succinic acid-related gene expression. Consistency between in vitro and in vivo results underscores dopamine's significant neuroprotective role in mitigating mitochondrial dysfunction following global cerebral hypoxia and ischemia injury. Supplement dopamine may represent a promising therapy to the cognitive impairment caused by GCI/R injury.
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Affiliation(s)
- Wenzhu Wang
- China Rehabilitation Science Institute, China Rehabilitation Research Center, Beijing, PR China; Wenzhou Medical University, Wenzhou, PR China; Beijing Key Laboratory of Neural Injury and Rehabilitation, Beijing, PR China
| | - Jingyu Zhao
- School of Biomedical Engineering and Technology, Tianjin Medical University, Tianjin, PR China
| | - Zihan Li
- China Rehabilitation Science Institute, China Rehabilitation Research Center, Beijing, PR China; Beijing Key Laboratory of Neural Injury and Rehabilitation, Beijing, PR China
| | - Xiaoyu Kang
- China Rehabilitation Science Institute, China Rehabilitation Research Center, Beijing, PR China
| | - Ting Li
- China Rehabilitation Science Institute, China Rehabilitation Research Center, Beijing, PR China; Beijing Key Laboratory of Neural Injury and Rehabilitation, Beijing, PR China
| | - Nickolay K Isaev
- Biological Faculty, M.V. Lomonosov Moscow State University, Moscow, Russia; Research Center of Neurology, Moscow, Russia
| | - Elena A Smirnova
- Biological Faculty, M.V. Lomonosov Moscow State University, Moscow, Russia; Department of Biology, MSU-BIT University, Shenzhen, PR China
| | - Hui Shen
- Dept of Cellular Biology, School of Basic Medical Science, Tianjin Medical University, Tianjin, PR China.
| | - Lixu Liu
- China Rehabilitation Science Institute, China Rehabilitation Research Center, Beijing, PR China; School of Rehabilitation Medicine, Capital Medical University, Beijing, PR China.
| | - Yan Yu
- China Rehabilitation Science Institute, China Rehabilitation Research Center, Beijing, PR China; Beijing Key Laboratory of Neural Injury and Rehabilitation, Beijing, PR China; Center of Neural Injury and Repair, Beijing Institute for Brain Disorders, Beijing, PR China; School of Rehabilitation Medicine, Capital Medical University, Beijing, PR China.
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10
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Guo K, Lu Y. Acupuncture modulates the AMPK/PGC-1 signaling pathway to facilitate mitochondrial biogenesis and neural recovery in ischemic stroke rats. Front Mol Neurosci 2024; 17:1388759. [PMID: 38813438 PMCID: PMC11133568 DOI: 10.3389/fnmol.2024.1388759] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2024] [Accepted: 04/30/2024] [Indexed: 05/31/2024] Open
Abstract
Aims The main objective of this study was to investigate the role and mechanism of acupuncture on anti-nerve injury in the acute phase by regulating mitochondrial energy metabolism via monophosphate-activated protein kinase (AMPK)/peroxisome proliferator-activated receptor-γ coactivator 1α (PGC-1α) axis in rat ischemic stroke. Main methods Middle cerebral artery occlusion (MCAO) was established by middle cerebral artery occlusion/reperfusion. One-week of acupuncture was performed during the acute phase of ischemic stroke. The neurological function and brain tissue integrity were evaluated. Mitochondrial function (intracellular ATP level and the activity of mitochondrial respiratory chain complex I) and the level of NADH oxidase (NOX) were detected by enzymatic chemistry. Next, the potential molecular mechanisms were explored by western blotting, fluorescence quantitative PCR and immunohistochemistry method. Key findings (1) Acupuncture treatment for MCAO/R rats showed a significant improvement in the infarcted tissue accompanied by functional recovery in Zea-Longa score and balance beam score outcomes, motor function performances. (2) Acupuncture increased the levels of ATP and mitochondrial respiratory chain complex I, decreased the NOX levels in cerebral ischemia established by suture-occluded method. (3) Acupuncture reduced the necrosis dissolution of neuronal cells and meningeal edema, while promoting angiogenesis. (4) Quantitative immunohistochemical staining results showed acupuncture can increase the expression of AMPK, p-AMPK and the mitochondrial transcription factor PGC-1α, NRF2, TFAM and uncoupling protein 2 (UCP2). Meanwhile, acupuncture treatment up-regulated the expression of the corresponding protein. (5) Subsequently, acupuncture enhanced AMPK phosphorylation as well as the expression of PGC-1α, NRF2, TFAM and UCP2, implicated in mitochondrial synthesis and cellular apoptosis. (6) Finally, injections of AMPK antagonists and activators confirmed AMPK as a therapeutic target for the anti-nerve damage effects of acupuncture. Significance Acupuncture intervention relieved ischemic stroke progression in MCAO rats by promoting energy metabolism and mitochondrial biogenesis in the brain and alleviating neuronal apoptosis, which was mediated by eliciting AMPK/PGC-1α axis, among them AMPK is a therapeutic target.
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Affiliation(s)
| | - Yan Lu
- Department of Acupuncture, Shandong University of Traditional Chinese Medicine, Jinan, China
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Cheng F, Zhang J, Yang P, Chen Z, Fu Y, Mi J, Xie X, Liu S, Sheng Y. Exploring the neuroprotection of the combination of astragaloside A, chlorogenic acid and scutellarin in treating chronic cerebral ischemia via network analysis and experimental validation. Heliyon 2024; 10:e29162. [PMID: 38655299 PMCID: PMC11036006 DOI: 10.1016/j.heliyon.2024.e29162] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Revised: 03/29/2024] [Accepted: 04/02/2024] [Indexed: 04/26/2024] Open
Abstract
Chronic cerebral ischemia (CCI) primarily causes cognitive dysfunction and other neurological impairments, yet there remains a lack of ideal therapeutic medications. The preparation combination of Astragalus membranaceus (Fisch.) Bunge and Erigeron breviscapus (Vant.) Hand.-Mazz have been utilized to ameliorate neurological dysfunction following cerebral ischemia, but material basis of its synergy remains unclear. The principal active ingredients and their optimal proportions in this combination have been identified through the oxygen and glucose deprivation (OGD) cell model, including astragaloside A, chlorogenic acid and scutellarin (ACS), and its efficacy in enhancing the survival of OGD PC12 cells surpasses that of the combination preparation. Nevertheless, mechanism of ACS against CCI remains elusive. In this study, 63 potential targets of ACS against CCI injury were obtained by network pharmacology, among which AKT1, CASP3 and TNF are the core targets. Subsequent analysis utilizing KEGG and GO suggested that PI3K/AKT pathway may play a crucial role for ACS in ameliorating CCI injury. Then, a right unilateral common carotid artery occlusion (rUCCAO) mouse model and an OGD PC12 cell model were established to replicate the pathological processes of CCI in vivo and in vitro. These models were utilized to explore the anti-CCI effects of ACS and its regulatory mechanisms, particularly focusing on PI3K/AKT pathway. The results showed that ACS facilitated the restoration of cerebral blood flow in CCI mice, enhanced the function of the central cholinergic nervous system, protected against ischemic nerve cell and mitochondrial damage, and improved cognitive function and other neurological impairments. Additionally, ACS upregulated the expression of p-PI3K, p-AKT, p-GSK3β and Bcl-2, and diminished the expression of Cyto-c, cleaved Caspase-3 and Bax significantly. However, the PI3K inhibitor (LY294002) partially reversed the downregulation of Bax, Cyto-c and cleaved Caspase-3 expression as well as the upregulation of p-AKT/AKT, p-GSK3β/GSK3β, and Bcl-2/Bax ratios. These findings suggest that ACS against neuronal damage in cerebral ischemia may be closely related to the activation of PI3K/AKT pathway. These results declared first time ACS may become an ideal candidate drug against CCI due to its neuroprotective effects, which are mediated by the activated PI3K/AKT pathway mitigates mitochondrial damage and prevents cell apoptosis.
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Affiliation(s)
- Fang Cheng
- Department of Pharmacology, School of Pharmacy, Chengdu Medical College, Chengdu, Sichuan, 610500, China
| | - Jie Zhang
- Department of Pharmacology, School of Pharmacy, Chengdu Medical College, Chengdu, Sichuan, 610500, China
| | - Pan Yang
- Department of Pharmacology, School of Pharmacy, Chengdu Medical College, Chengdu, Sichuan, 610500, China
| | - Zufei Chen
- Department of Pharmacology, School of Pharmacy, Chengdu Medical College, Chengdu, Sichuan, 610500, China
| | - Yinghao Fu
- Department of Pharmacology, School of Pharmacy, Chengdu Medical College, Chengdu, Sichuan, 610500, China
| | - Jiajia Mi
- Department of Pharmacology, School of Pharmacy, Chengdu Medical College, Chengdu, Sichuan, 610500, China
| | - Xingliang Xie
- The Second Class Laboratory of Traditional Chinese Medicine Pharmaceutics, National Administration of Traditional Chinese Medicine, Chengdu Medical College, Chengdu, Sichuan, 610500, China
| | - Sha Liu
- Department of Pharmacology, School of Pharmacy, Chengdu Medical College, Chengdu, Sichuan, 610500, China
| | - Yanmei Sheng
- Department of Pharmacology, School of Pharmacy, Chengdu Medical College, Chengdu, Sichuan, 610500, China
- The Second Class Laboratory of Traditional Chinese Medicine Pharmaceutics, National Administration of Traditional Chinese Medicine, Chengdu Medical College, Chengdu, Sichuan, 610500, China
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12
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Jin DJ, Yang ZH, Qiu YG, Zheng YM, Cui ZN, Gu W. Design, synthesis, antifungal evaluation and mechanism study of novel norbornene derivatives as potential laccase inhibitors. PEST MANAGEMENT SCIENCE 2024. [PMID: 38625031 DOI: 10.1002/ps.8133] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2023] [Revised: 03/09/2024] [Accepted: 04/16/2024] [Indexed: 04/17/2024]
Abstract
BACKGROUND To discover novel fungicide candidates, five series of novel norbornene hydrazide, bishydrazide, oxadiazole, carboxamide and acylthiourea derivatives (2a-2t, 3a-3f, 4a-4f, 5a-5f and 7a-7f) were designed, synthesized and assayed for their antifungal activity toward seven representative plant fungal pathogens. RESULTS In the in vitro antifungal assay, some title norbornene derivatives presented good antifungal activity against Botryosphaeria dothidea, Sclerotinia sclerotiorum and Fusarium graminearum. Especially, compound 2b exhibited the best inhibitory activity toward B. dothidea with the median effective concentration (EC50) of 0.17 mg L-1, substantially stronger than those of the reference fungicides boscalid and carbendazim. The in vivo antifungal assay on apples revealed that 2b had significant curative and protective effects, both of which were superior to boscalid. In the preliminary antifungal mechanism study, 2b was able to injure the surface morphology of hyphae, destroy the cell membrane integrity and increase the intracellular reactive oxygen species (ROS) level of B. dothidea. In addition, 2b could considerably inhibit the laccase activity with the median inhibitory concentration (IC50) of 1.02 μM, much stronger than that of positive control cysteine (IC50 = 35.50 μM). The binding affinity and interaction mode of 2b with laccase were also confirmed by molecular docking. CONCLUSION This study presented a promising lead compound for the study of novel laccase inhibitors as fungicidal agrochemicals, which demonstrate significant anti-B. dothidea activity and laccase inhibitory activity. © 2024 Society of Chemical Industry.
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Affiliation(s)
- Dao-Jun Jin
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Jiangsu Provincial Key Lab for the Chemistry and Utilization of Agro-forest Biomass, Jiangsu Key Lab of Biomass-based Green Fuels and Chemicals, College of Chemical Engineering, Nanjing Forestry University, Nanjing, China
| | - Zi-Hui Yang
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Jiangsu Provincial Key Lab for the Chemistry and Utilization of Agro-forest Biomass, Jiangsu Key Lab of Biomass-based Green Fuels and Chemicals, College of Chemical Engineering, Nanjing Forestry University, Nanjing, China
| | - Yi-Gui Qiu
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Jiangsu Provincial Key Lab for the Chemistry and Utilization of Agro-forest Biomass, Jiangsu Key Lab of Biomass-based Green Fuels and Chemicals, College of Chemical Engineering, Nanjing Forestry University, Nanjing, China
| | - Yi-Ming Zheng
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Jiangsu Provincial Key Lab for the Chemistry and Utilization of Agro-forest Biomass, Jiangsu Key Lab of Biomass-based Green Fuels and Chemicals, College of Chemical Engineering, Nanjing Forestry University, Nanjing, China
| | - Zhen-Nan Cui
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Jiangsu Provincial Key Lab for the Chemistry and Utilization of Agro-forest Biomass, Jiangsu Key Lab of Biomass-based Green Fuels and Chemicals, College of Chemical Engineering, Nanjing Forestry University, Nanjing, China
| | - Wen Gu
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Jiangsu Provincial Key Lab for the Chemistry and Utilization of Agro-forest Biomass, Jiangsu Key Lab of Biomass-based Green Fuels and Chemicals, College of Chemical Engineering, Nanjing Forestry University, Nanjing, China
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13
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Nakamura E, Aoki T, Endo Y, Kazmi J, Hagiwara J, Kuschner CE, Yin T, Kim J, Becker LB, Hayashida K. Organ-Specific Mitochondrial Alterations Following Ischemia-Reperfusion Injury in Post-Cardiac Arrest Syndrome: A Comprehensive Review. Life (Basel) 2024; 14:477. [PMID: 38672748 PMCID: PMC11050834 DOI: 10.3390/life14040477] [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: 03/16/2024] [Revised: 04/01/2024] [Accepted: 04/03/2024] [Indexed: 04/28/2024] Open
Abstract
BACKGROUND Mitochondrial dysfunction, which is triggered by systemic ischemia-reperfusion (IR) injury and affects various organs, is a key factor in the development of post-cardiac arrest syndrome (PCAS). Current research on PCAS primarily addresses generalized mitochondrial responses, resulting in a knowledge gap regarding organ-specific mitochondrial dynamics. This review focuses on the organ-specific mitochondrial responses to IR injury, particularly examining the brain, heart, and kidneys, to highlight potential therapeutic strategies targeting mitochondrial dysfunction to enhance outcomes post-IR injury. METHODS AND RESULTS We conducted a narrative review examining recent advancements in mitochondrial research related to IR injury. Mitochondrial responses to IR injury exhibit considerable variation across different organ systems, influenced by unique mitochondrial structures, bioenergetics, and antioxidative capacities. Each organ demonstrates distinct mitochondrial behaviors that have evolved to fulfill specific metabolic and functional needs. For example, cerebral mitochondria display dynamic responses that can be both protective and detrimental to neuronal activity and function during ischemic events. Cardiac mitochondria show vulnerability to IR-induced oxidative stress, while renal mitochondria exhibit a unique pattern of fission and fusion, closely linked to their susceptibility to acute kidney injury. This organ-specific heterogeneity in mitochondrial responses requires the development of tailored interventions. Progress in mitochondrial medicine, especially in the realms of genomics and metabolomics, is paving the way for innovative strategies to combat mitochondrial dysfunction. Emerging techniques such as mitochondrial transplantation hold the potential to revolutionize the management of IR injury in resuscitation science. CONCLUSIONS The investigation into organ-specific mitochondrial responses to IR injury is pivotal in the realm of resuscitation research, particularly within the context of PCAS. This nuanced understanding holds the promise of revolutionizing PCAS management, addressing the unique mitochondrial dysfunctions observed in critical organs affected by IR injury.
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Affiliation(s)
- Eriko Nakamura
- Laboratory for Critical Care Physiology, Feinstein Institutes for Medical Research, Northwell Health System, Manhasset, NY 11030, USA; (E.N.); (T.A.); (Y.E.); (J.K.); (J.H.); (C.E.K.); (T.Y.); (J.K.); (L.B.B.)
| | - Tomoaki Aoki
- Laboratory for Critical Care Physiology, Feinstein Institutes for Medical Research, Northwell Health System, Manhasset, NY 11030, USA; (E.N.); (T.A.); (Y.E.); (J.K.); (J.H.); (C.E.K.); (T.Y.); (J.K.); (L.B.B.)
| | - Yusuke Endo
- Laboratory for Critical Care Physiology, Feinstein Institutes for Medical Research, Northwell Health System, Manhasset, NY 11030, USA; (E.N.); (T.A.); (Y.E.); (J.K.); (J.H.); (C.E.K.); (T.Y.); (J.K.); (L.B.B.)
| | - Jacob Kazmi
- Laboratory for Critical Care Physiology, Feinstein Institutes for Medical Research, Northwell Health System, Manhasset, NY 11030, USA; (E.N.); (T.A.); (Y.E.); (J.K.); (J.H.); (C.E.K.); (T.Y.); (J.K.); (L.B.B.)
| | - Jun Hagiwara
- Laboratory for Critical Care Physiology, Feinstein Institutes for Medical Research, Northwell Health System, Manhasset, NY 11030, USA; (E.N.); (T.A.); (Y.E.); (J.K.); (J.H.); (C.E.K.); (T.Y.); (J.K.); (L.B.B.)
| | - Cyrus E. Kuschner
- Laboratory for Critical Care Physiology, Feinstein Institutes for Medical Research, Northwell Health System, Manhasset, NY 11030, USA; (E.N.); (T.A.); (Y.E.); (J.K.); (J.H.); (C.E.K.); (T.Y.); (J.K.); (L.B.B.)
- Department of Emergency Medicine, Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, Hempstead, NY 11549, USA
| | - Tai Yin
- Laboratory for Critical Care Physiology, Feinstein Institutes for Medical Research, Northwell Health System, Manhasset, NY 11030, USA; (E.N.); (T.A.); (Y.E.); (J.K.); (J.H.); (C.E.K.); (T.Y.); (J.K.); (L.B.B.)
| | - Junhwan Kim
- Laboratory for Critical Care Physiology, Feinstein Institutes for Medical Research, Northwell Health System, Manhasset, NY 11030, USA; (E.N.); (T.A.); (Y.E.); (J.K.); (J.H.); (C.E.K.); (T.Y.); (J.K.); (L.B.B.)
| | - Lance B. Becker
- Laboratory for Critical Care Physiology, Feinstein Institutes for Medical Research, Northwell Health System, Manhasset, NY 11030, USA; (E.N.); (T.A.); (Y.E.); (J.K.); (J.H.); (C.E.K.); (T.Y.); (J.K.); (L.B.B.)
- Department of Emergency Medicine, Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, Hempstead, NY 11549, USA
| | - Kei Hayashida
- Laboratory for Critical Care Physiology, Feinstein Institutes for Medical Research, Northwell Health System, Manhasset, NY 11030, USA; (E.N.); (T.A.); (Y.E.); (J.K.); (J.H.); (C.E.K.); (T.Y.); (J.K.); (L.B.B.)
- Department of Emergency Medicine, Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, Hempstead, NY 11549, USA
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14
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Morse PT, Arroum T, Wan J, Pham L, Vaishnav A, Bell J, Pavelich L, Malek MH, Sanderson TH, Edwards BFP, Hüttemann M. Phosphorylations and Acetylations of Cytochrome c Control Mitochondrial Respiration, Mitochondrial Membrane Potential, Energy, ROS, and Apoptosis. Cells 2024; 13:493. [PMID: 38534337 DOI: 10.3390/cells13060493] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2024] [Revised: 03/07/2024] [Accepted: 03/09/2024] [Indexed: 03/28/2024] Open
Abstract
Cytochrome c (Cytc) has both life-sustaining and cellular death-related functions, depending on subcellular localization. Within mitochondria, Cytc acts as a single electron carrier as part of the electron transport chain (ETC). When released into the cytosol after cellular insult, Cytc triggers the assembly of the apoptosome, committing the cell to intrinsic apoptosis. Due to these dual natures, Cytc requires strong regulation by the cell, including post-translational modifications, such as phosphorylation and acetylation. Six phosphorylation sites and three acetylation sites have been detected on Cytc in vivo. Phosphorylations at T28, S47, Y48, T49, T58, and Y97 tend to be present under basal conditions in a tissue-specific manner. In contrast, the acetylations at K8, K39, and K53 tend to be present in specific pathophysiological conditions. All of the phosphorylation sites and two of the three acetylation sites partially inhibit respiration, which we propose serves to maintain an optimal, intermediate mitochondrial membrane potential (ΔΨm) to minimize reactive oxygen species (ROS) production. Cytc phosphorylations are lost during ischemia, which drives ETC hyperactivity and ΔΨm hyperpolarization, resulting in exponential ROS production thus causing reperfusion injury following ischemia. One of the acetylation sites, K39, shows a unique behavior in that it is gained during ischemia, stimulating respiration while blocking apoptosis, demonstrating that skeletal muscle, which is particularly resilient to ischemia-reperfusion injury compared to other organs, possesses a different metabolic strategy to handle ischemic stress. The regulation of Cytc by these post-translational modifications underscores the importance of Cytc for the ETC, ΔΨm, ROS production, apoptosis, and the cell as a whole.
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Affiliation(s)
- Paul T Morse
- Center for Molecular Medicine and Genetics, Wayne State University, Detroit, MI 48201, USA
| | - Tasnim Arroum
- Center for Molecular Medicine and Genetics, Wayne State University, Detroit, MI 48201, USA
| | - Junmei Wan
- Center for Molecular Medicine and Genetics, Wayne State University, Detroit, MI 48201, USA
| | - Lucynda Pham
- Center for Molecular Medicine and Genetics, Wayne State University, Detroit, MI 48201, USA
| | - Asmita Vaishnav
- Department of Biochemistry, Microbiology, and Immunology, Wayne State University, Detroit, MI 48201, USA
| | - Jamie Bell
- Center for Molecular Medicine and Genetics, Wayne State University, Detroit, MI 48201, USA
- Division of Pediatric Critical Care, Children's Hospital of Michigan, Central Michigan University, Detroit, MI 48201, USA
| | - Lauren Pavelich
- Center for Molecular Medicine and Genetics, Wayne State University, Detroit, MI 48201, USA
- Department of Biochemistry, Microbiology, and Immunology, Wayne State University, Detroit, MI 48201, USA
| | - Moh H Malek
- Department of Health Care Sciences, Eugene Applebaum College of Pharmacy & Health Sciences, Wayne State University, Detroit, MI 48201, USA
| | - Thomas H Sanderson
- Department of Emergency Medicine, University of Michigan Medical School, Ann Arbor, MI 48109, USA
| | - Brian F P Edwards
- Department of Biochemistry, Microbiology, and Immunology, Wayne State University, Detroit, MI 48201, USA
| | - Maik Hüttemann
- Center for Molecular Medicine and Genetics, Wayne State University, Detroit, MI 48201, USA
- Department of Biochemistry, Microbiology, and Immunology, Wayne State University, Detroit, MI 48201, USA
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15
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Zhao R, Zhou X, Zhao Z, Liu W, Lv M, Zhang Z, Wang C, Li T, Yang Z, Wan Q, Xu R, Cui Y. Farrerol Alleviates Cerebral Ischemia-Reperfusion Injury by Promoting Neuronal Survival and Reducing Neuroinflammation. Mol Neurobiol 2024:10.1007/s12035-024-04031-9. [PMID: 38376762 DOI: 10.1007/s12035-024-04031-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2023] [Accepted: 02/10/2024] [Indexed: 02/21/2024]
Abstract
Ischemia-reperfusion (I/R) injury is a key influencing factor in the outcome of stroke. Inflammatory response, oxidative stress, and neuronal apoptosis are among the main factors that affect the progression of I/R injury. Farrerol (FAR) is a natural compound that can effectively inhibit the inflammatory response and oxidative stress. However, the role of FAR in cerebral I/R injury remains unknown. In this study, we found that FAR reduced brain injury and neuronal viability after cerebral I/R injury. Meanwhile, administration of FAR also reduced the inflammatory response of microglia after brain injury. Mechanistically, FAR treatment directly reduced neuronal death after oxygen glucose deprivation/re-oxygenation (OGD/R) through enhancing cAMP-response element binding protein (CREB) activation to increase the expression of downstream neurotrophic factors and anti-apoptotic genes. Moreover, FAR decreased the activation of nuclear factor kappa-B (NF-κB) and mitogen-activated protein kinase (MAPK) signaling pathways, inhibited microglia activation, and reduced the production of inflammatory cytokines in microglia after OGD/R treatment or LPS stimulation. The compromised inflammatory response by FAR directly promoted the survival of neurons after OGD/R. In conclusion, FAR exerted a protective effect on cerebral I/R injury by directly decreasing neuronal death through upregulating CREB expression and attenuating neuroinflammation. Therefore, FAR could be a potentially effective drug for the treatment of cerebral I/R injury.
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Affiliation(s)
- Rui Zhao
- Department of Interventional Radiology, The Affiliated Hospital of Qingdao University, Jiangsu Road 16, Qingdao, 266000, Shandong, China
- Qingdao Medical College, Qingdao University, Qingdao, 266071, China
| | - Xin Zhou
- Institute of Neuroregeneration and Neurorehabilitation, Qingdao University, Ningxia Road 308, Qingdao, 266071, Shandong, China
- Qingdao Medical College, Qingdao University, Qingdao, 266071, China
| | - Zhiyuan Zhao
- Department of Interventional Radiology, The Affiliated Hospital of Qingdao University, Jiangsu Road 16, Qingdao, 266000, Shandong, China
- Qingdao Medical College, Qingdao University, Qingdao, 266071, China
| | - Wenhao Liu
- Department of Interventional Radiology, The Affiliated Hospital of Qingdao University, Jiangsu Road 16, Qingdao, 266000, Shandong, China
- Qingdao Medical College, Qingdao University, Qingdao, 266071, China
| | - Mengfei Lv
- Institute of Neuroregeneration and Neurorehabilitation, Qingdao University, Ningxia Road 308, Qingdao, 266071, Shandong, China
- Qingdao Medical College, Qingdao University, Qingdao, 266071, China
| | - Zhaolong Zhang
- Department of Interventional Radiology, The Affiliated Hospital of Qingdao University, Jiangsu Road 16, Qingdao, 266000, Shandong, China
| | - Changxin Wang
- Department of Interventional Radiology, The Affiliated Hospital of Qingdao University, Jiangsu Road 16, Qingdao, 266000, Shandong, China
- Qingdao Medical College, Qingdao University, Qingdao, 266071, China
| | - Tianli Li
- Department of Interventional Radiology, The Affiliated Hospital of Qingdao University, Jiangsu Road 16, Qingdao, 266000, Shandong, China
- Qingdao Medical College, Qingdao University, Qingdao, 266071, China
| | - Zixiong Yang
- Qingdao Medical College, Qingdao University, Qingdao, 266071, China
| | - Qi Wan
- Institute of Neuroregeneration and Neurorehabilitation, Qingdao University, Ningxia Road 308, Qingdao, 266071, Shandong, China
| | - Rui Xu
- Department of Interventional Radiology, The Affiliated Hospital of Qingdao University, Jiangsu Road 16, Qingdao, 266000, Shandong, China.
- Qingdao Medical College, Qingdao University, Qingdao, 266071, China.
| | - Yu Cui
- Institute of Neuroregeneration and Neurorehabilitation, Qingdao University, Ningxia Road 308, Qingdao, 266071, Shandong, China.
- Qingdao Medical College, Qingdao University, Qingdao, 266071, China.
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16
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André-Lévigne D, Pignel R, Boet S, Jaquet V, Kalbermatten DF, Madduri S. Role of Oxygen and Its Radicals in Peripheral Nerve Regeneration: From Hypoxia to Physoxia to Hyperoxia. Int J Mol Sci 2024; 25:2030. [PMID: 38396709 PMCID: PMC10888612 DOI: 10.3390/ijms25042030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2023] [Revised: 02/02/2024] [Accepted: 02/05/2024] [Indexed: 02/25/2024] Open
Abstract
Oxygen is compulsory for mitochondrial function and energy supply, but it has numerous more nuanced roles. The different roles of oxygen in peripheral nerve regeneration range from energy supply, inflammation, phagocytosis, and oxidative cell destruction in the context of reperfusion injury to crucial redox signaling cascades that are necessary for effective axonal outgrowth. A fine balance between reactive oxygen species production and antioxidant activity draws the line between physiological and pathological nerve regeneration. There is compelling evidence that redox signaling mediated by the Nox family of nicotinamide adenine dinucleotide phosphate (NADPH) oxidases plays an important role in peripheral nerve regeneration. Further research is needed to better characterize the role of Nox in physiological and pathological circumstances, but the available data suggest that the modulation of Nox activity fosters great therapeutic potential. One of the promising approaches to enhance nerve regeneration by modulating the redox environment is hyperbaric oxygen therapy. In this review, we highlight the influence of various oxygenation states, i.e., hypoxia, physoxia, and hyperoxia, on peripheral nerve repair and regeneration. We summarize the currently available data and knowledge on the effectiveness of using hyperbaric oxygen therapy to treat nerve injuries and discuss future directions.
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Affiliation(s)
- Dominik André-Lévigne
- Division of Plastic, Reconstructive and Aesthetic Surgery, Geneva University Hospitals, 1205 Geneva, Switzerland
| | - Rodrigue Pignel
- Subaquatic and Hyperbaric Medicine Unit, Division of Emergency Medicine, Department of Anesthesiology, Clinical Pharmacology, Intensive Care and Emergency Medicine, Geneva University Hospitals and Faculty of Medicine, University of Geneva, 1205 Geneva, Switzerland
| | - Sylvain Boet
- Subaquatic and Hyperbaric Medicine Unit, Division of Emergency Medicine, Department of Anesthesiology, Clinical Pharmacology, Intensive Care and Emergency Medicine, Geneva University Hospitals and Faculty of Medicine, University of Geneva, 1205 Geneva, Switzerland
- Department of Anesthesiology and Pain Medicine, The Ottawa Hospital, Ottawa, ON K1H 8L6, Canada
- Ottawa Hospital Research Institute, Clinical Epidemiology Program, Department of Innovation in Medical Education, University of Ottawa, Ottawa, ON K1H 8L6, Canada
- Institut du Savoir Montfort, Ottawa, ON K1K 0T2, Canada
| | - Vincent Jaquet
- Department of Cell Physiology and Metabolism, University of Geneva, 1205 Geneva, Switzerland
- READS Unit, Faculty of Medicine, University of Geneva, 1205 Geneva, Switzerland
| | - Daniel F. Kalbermatten
- Division of Plastic, Reconstructive and Aesthetic Surgery, Geneva University Hospitals, 1205 Geneva, Switzerland
- Bioengineering and Neuroregeneration Laboratory, Department of Surgery, University of Geneva, 1205 Geneva, Switzerland
| | - Srinivas Madduri
- Division of Plastic, Reconstructive and Aesthetic Surgery, Geneva University Hospitals, 1205 Geneva, Switzerland
- Bioengineering and Neuroregeneration Laboratory, Department of Surgery, University of Geneva, 1205 Geneva, Switzerland
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17
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Lin H, Li D, Zhu J, Liu S, Li J, Yu T, Tuchin VV, Semyachkina-Glushkovskaya O, Zhu D. Transcranial photobiomodulation for brain diseases: review of animal and human studies including mechanisms and emerging trends. NEUROPHOTONICS 2024; 11:010601. [PMID: 38317779 PMCID: PMC10840571 DOI: 10.1117/1.nph.11.1.010601] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Revised: 12/07/2023] [Accepted: 01/05/2024] [Indexed: 02/07/2024]
Abstract
The brain diseases account for 30% of all known diseases. Pharmacological treatment is hampered by the blood-brain barrier, limiting drug delivery to the central nervous system (CNS). Transcranial photobiomodulation (tPBM) is a promising technology for treating brain diseases, due to its effectiveness, non-invasiveness, and affordability. tPBM has been widely used in pre-clinical experiments and clinical trials for treating brain diseases, such as stroke and Alzheimer's disease. This review provides a comprehensive overview of tPBM. We summarize emerging trends and new discoveries in tPBM based on over one hundred references published in the past 20 years. We discuss the advantages and disadvantages of tPBM and highlight successful experimental and clinical protocols for treating various brain diseases. A better understanding of tPBM mechanisms, the development of guidelines for clinical practice, and the study of dose-dependent and personal effects hold great promise for progress in treating brain diseases.
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Affiliation(s)
- Hao Lin
- Huazhong University of Science and Technology, Britton Chance Center for Biomedical Photonics, Wuhan National Laboratory for Optoelectronics – Advanced Biomedical Imaging Facility, Wuhan, China
| | - Dongyu Li
- Huazhong University of Science and Technology, Britton Chance Center for Biomedical Photonics, Wuhan National Laboratory for Optoelectronics – Advanced Biomedical Imaging Facility, Wuhan, China
- Huazhong University of Science and Technology, School of Optical Electronic Information, Wuhan, China
| | - Jingtan Zhu
- Huazhong University of Science and Technology, Britton Chance Center for Biomedical Photonics, Wuhan National Laboratory for Optoelectronics – Advanced Biomedical Imaging Facility, Wuhan, China
| | - Shaojun Liu
- Huazhong University of Science and Technology, Britton Chance Center for Biomedical Photonics, Wuhan National Laboratory for Optoelectronics – Advanced Biomedical Imaging Facility, Wuhan, China
| | - Jingting Li
- Huazhong University of Science and Technology, School of Engineering Sciences, Wuhan, China
| | - Tingting Yu
- Huazhong University of Science and Technology, Britton Chance Center for Biomedical Photonics, Wuhan National Laboratory for Optoelectronics – Advanced Biomedical Imaging Facility, Wuhan, China
| | - Valery V. Tuchin
- Saratov State University, Science Medical Center, Saratov, Russia
- Research Center of Biotechnology of the Russian Academy of Sciences, Bach Institute of Biochemistry, Moscow, Russia
- Tomsk State University, Laboratory of Laser Molecular Imaging and Machine Learning, Tomsk, Russia
| | - Oxana Semyachkina-Glushkovskaya
- Saratov State University, Science Medical Center, Saratov, Russia
- Humboldt University, Department of Physics, Berlin, Germany
| | - Dan Zhu
- Huazhong University of Science and Technology, Britton Chance Center for Biomedical Photonics, Wuhan National Laboratory for Optoelectronics – Advanced Biomedical Imaging Facility, Wuhan, China
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18
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Wider JM, Gruley E, Morse PT, Wan J, Lee I, Anzell AR, Fogo GM, Mathieu J, Hish G, O'Neil B, Neumar RW, Przyklenk K, Hüttemann M, Sanderson TH. Modulation of mitochondrial function with near-infrared light reduces brain injury in a translational model of cardiac arrest. Crit Care 2023; 27:491. [PMID: 38098060 PMCID: PMC10720207 DOI: 10.1186/s13054-023-04745-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Accepted: 11/18/2023] [Indexed: 12/18/2023] Open
Abstract
BACKGROUND Brain injury is a leading cause of morbidity and mortality in patients resuscitated from cardiac arrest. Mitochondrial dysfunction contributes to brain injury following cardiac arrest; therefore, therapies that limit mitochondrial dysfunction have the potential to improve neurological outcomes. Generation of reactive oxygen species (ROS) during ischemia-reperfusion injury in the brain is a critical component of mitochondrial injury and is dependent on hyperactivation of mitochondria following resuscitation. Our previous studies have provided evidence that modulating mitochondrial function with specific near-infrared light (NIR) wavelengths can reduce post-ischemic mitochondrial hyperactivity, thereby reducing brain injury during reperfusion in multiple small animal models. METHODS Isolated porcine brain cytochrome c oxidase (COX) was used to investigate the mechanism of NIR-induced mitochondrial modulation. Cultured primary neurons from mice expressing mitoQC were utilized to explore the mitochondrial mechanisms related to protection with NIR following ischemia-reperfusion. Anesthetized pigs were used to optimize the delivery of NIR to the brain by measuring the penetration depth of NIR to deep brain structures and tissue heating. Finally, a model of out-of-hospital cardiac arrest with CPR in adult pigs was used to evaluate the translational potential of NIR as a noninvasive therapeutic approach to protect the brain after resuscitation. RESULTS Molecular evaluation of enzyme activity during NIR irradiation demonstrated COX function was reduced in an intensity-dependent manner with a threshold of enzyme inhibition leading to a moderate reduction in activity without complete inhibition. Mechanistic interrogation in neurons demonstrated that mitochondrial swelling and upregulation of mitophagy were reduced with NIR treatment. NIR therapy in large animals is feasible, as NIR penetrates deep into the brain without substantial tissue heating. In a translational porcine model of CA/CPR, transcranial NIR treatment for two hours at the onset of return of spontaneous circulation (ROSC) demonstrated significantly improved neurological deficit scores and reduced histologic evidence of brain injury after resuscitation from cardiac arrest. CONCLUSIONS NIR modulates mitochondrial function which improves mitochondrial dynamics and quality control following ischemia/reperfusion. Noninvasive modulation of mitochondria, achieved by transcranial treatment of the brain with NIR, mitigates post-cardiac arrest brain injury and improves neurologic functional outcomes.
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Affiliation(s)
- Joseph M Wider
- Department of Emergency Medicine, University of Michigan, 1500 East Medical Center Drive, Ann Arbor, MI, 48109-5014, USA
- Max Harry Weil Institute for Critical Care Research and Innovation, University of Michigan, B10-103A, NCRC 2800 Plymouth Road, Ann Arbor, MI, 48109, USA
- Department of Molecular and Integrative Physiology, University of Michigan, 7744 MS II, 1137 E. Catherine St., Ann Arbor, MI, 48109-5622, USA
| | - Erin Gruley
- Department of Emergency Medicine, University of Michigan, 1500 East Medical Center Drive, Ann Arbor, MI, 48109-5014, USA
- Max Harry Weil Institute for Critical Care Research and Innovation, University of Michigan, B10-103A, NCRC 2800 Plymouth Road, Ann Arbor, MI, 48109, USA
| | - Paul T Morse
- Center for Molecular Medicine and Genetics, Wayne State University, 3214 Scott Hall, 540 E. Canfield Ave., Detroit, MI, 48201, USA
| | - Junmei Wan
- Center for Molecular Medicine and Genetics, Wayne State University, 3214 Scott Hall, 540 E. Canfield Ave., Detroit, MI, 48201, USA
| | - Icksoo Lee
- College of Medicine, Dankook University, Cheonan-Si, Chungcheongnam-Do, 31116, Republic of Korea
| | - Anthony R Anzell
- Department of Human Genetics, University of Pittsburgh, 130 De Soto Street, Pittsburgh, PA, 15261, USA
| | - Garrett M Fogo
- Department of Emergency Medicine, University of Michigan, 1500 East Medical Center Drive, Ann Arbor, MI, 48109-5014, USA
- Neuroscience Graduate Program, University of Michigan, 204 Washtenaw Ave, Ann Arbor, MI, 48109, USA
| | - Jennifer Mathieu
- Department of Emergency Medicine, University of Michigan, 1500 East Medical Center Drive, Ann Arbor, MI, 48109-5014, USA
- Max Harry Weil Institute for Critical Care Research and Innovation, University of Michigan, B10-103A, NCRC 2800 Plymouth Road, Ann Arbor, MI, 48109, USA
- Department of Molecular and Integrative Physiology, University of Michigan, 7744 MS II, 1137 E. Catherine St., Ann Arbor, MI, 48109-5622, USA
| | - Gerald Hish
- Unit for Laboratory Animal Medicine, University of Michigan, North Campus Research Complex, 2800 Plymouth Rd, Ann Arbor, MI, 48109, USA
| | - Brian O'Neil
- Department of Emergency Medicine, Wayne State University, 4201 St. Antoine St., University Health Center - 6G, Detroit, MI, 48201, USA
| | - Robert W Neumar
- Department of Emergency Medicine, University of Michigan, 1500 East Medical Center Drive, Ann Arbor, MI, 48109-5014, USA
- Max Harry Weil Institute for Critical Care Research and Innovation, University of Michigan, B10-103A, NCRC 2800 Plymouth Road, Ann Arbor, MI, 48109, USA
| | - Karin Przyklenk
- Clinical Research Institute, Children's Hospital of Michigan, 3901 Beaubien Blvd, Detroit, MI, USA
- Department of Pediatrics, Central Michigan University, 1280 S. East Campus Drive, Mount Pleasant, MI, 48859, USA
| | - Maik Hüttemann
- Center for Molecular Medicine and Genetics, Wayne State University, 3214 Scott Hall, 540 E. Canfield Ave., Detroit, MI, 48201, USA
| | - Thomas H Sanderson
- Department of Emergency Medicine, University of Michigan, 1500 East Medical Center Drive, Ann Arbor, MI, 48109-5014, USA.
- Max Harry Weil Institute for Critical Care Research and Innovation, University of Michigan, B10-103A, NCRC 2800 Plymouth Road, Ann Arbor, MI, 48109, USA.
- Department of Molecular and Integrative Physiology, University of Michigan, 7744 MS II, 1137 E. Catherine St., Ann Arbor, MI, 48109-5622, USA.
- Neuroscience Graduate Program, University of Michigan, 204 Washtenaw Ave, Ann Arbor, MI, 48109, USA.
- Department of Emergency Medicine, Wayne State University, 4201 St. Antoine St., University Health Center - 6G, Detroit, MI, 48201, USA.
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Wu Y, Zhou K, Liu B, Xu J, Lei L, Hu J, Cheng X, Zhong F, Wang S. Glial Activation, Mitochondrial Imbalance, and Akt/mTOR Signaling May Be Potential Mechanisms of Cognitive Impairment in Heart Failure Mice. Neurotox Res 2023; 41:589-603. [PMID: 37668877 DOI: 10.1007/s12640-023-00655-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Revised: 06/16/2023] [Accepted: 06/20/2023] [Indexed: 09/06/2023]
Abstract
Heart failure (HF) is a major health burden worldwide, with approximately half of HF patients having a comorbid cognitive impairment (CI). However, it is still unclear how CI develops in patients with HF. In the present study, a mice model of heart failure was established by ligating the left anterior descending coronary artery. Echocardiography 1 month later confirmed the decline in ejection fraction and ventricular remodeling. Cognitive function was examined by the Pavlovian fear conditioning and the Morris water maze. HF group cued fear memory, spatial memory, and learning impairment, accompanied by activation of glial cells (astrocytes, microglia, and oligodendrocytes) in the hippocampus. In addition, the mitochondrial biogenesis genes TFAM and SIRT1 decreased, and the fission gene DRP1 increased in the hippocampus. Damaged mitochondria release excessive ROS, and the ability to produce ATP decreases. Damaged swollen mitochondria with altered morphology and aberrant inner-membrane crista were observed under a transmission electron microscope. Finally, Akt/mTOR signaling was upregulated in the hippocampus of heart failure mice. These findings suggest that activation of Akt/mTOR signaling, glial activation, and mitochondrial dynamics imbalance could trigger cognitive impairment in the pathological process of heart failure mice.
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Affiliation(s)
- Yanan Wu
- Department of Anesthesiology, Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
- School of Medicine, South China University of Technology, Guangzhou, 510006, China
| | - Kaiyi Zhou
- Department of Anesthesiology, Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
- School of Medicine, South China University of Technology, Guangzhou, 510006, China
| | - Baiyang Liu
- Department of Pulmonary Oncology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - Jindong Xu
- Department of Anesthesiology, Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Liming Lei
- Department of Anesthesiology, Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Jiaqi Hu
- Department of Anesthesiology, Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Xiao Cheng
- Department of Neurology, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China.
- State Key Laboratory of Dampness, Syndrome of Chinese Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China.
- Guangdong Provincial Key Laboratory of Research On Emergency in TCM, Guangzhou, China.
| | - Feng Zhong
- Department of Anesthesiology, Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China.
| | - Sheng Wang
- Department of Anesthesiology, Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China.
- Department of Anesthesiology, Beijing Anzhen Hospital, Capital Medical University, Beijing, China.
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20
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Babich LG, Shlykov SG, Bavelska-Somak AO, Zagoruiko AG, Horid'ko TM, Kosiakova HV, Hula NM, Kosterin SO. Extramitochondrial ATP as [Ca 2+] m and cardiolipin content regulator. BIOCHIMICA ET BIOPHYSICA ACTA. BIOMEMBRANES 2023; 1865:184213. [PMID: 37582415 DOI: 10.1016/j.bbamem.2023.184213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Revised: 08/07/2023] [Accepted: 08/09/2023] [Indexed: 08/17/2023]
Abstract
An ATP-induced increase of [Ca2+]m in myometrium mitochondria matrix at the absence of exogenous Ca2+ was shown. An ATP-induced increase of Сa2+ efflux from mitochondria ([Сa2+]o) has also been shown. Mitochondria membranes were polarized upon incubation in both Mg2+- and Mg2+,ATP-medium. Cardiolipin (CL) content in mitochondria membranes decreased upon incubation of organelles in Mg2+,ATP-medium as compared to Mg2+-medium. It was suggested that ATP could play the role of a signaling molecule regulating the Ca2+ exchange in the mitochondria.
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Affiliation(s)
- Lidiya G Babich
- Department of Muscle Biochemistry, Palladin Institute of Biochemistry, NAS of Ukraine, 9, Leontovich Str., Kyiv 01054, Ukraine.
| | - Sergiy G Shlykov
- Department of Muscle Biochemistry, Palladin Institute of Biochemistry, NAS of Ukraine, 9, Leontovich Str., Kyiv 01054, Ukraine.
| | - Anastasia O Bavelska-Somak
- Department of Muscle Biochemistry, Palladin Institute of Biochemistry, NAS of Ukraine, 9, Leontovich Str., Kyiv 01054, Ukraine
| | - Anastasia G Zagoruiko
- Department of Muscle Biochemistry, Palladin Institute of Biochemistry, NAS of Ukraine, 9, Leontovich Str., Kyiv 01054, Ukraine
| | - Tetyana M Horid'ko
- Department of Lipid Biochemistry, Palladin Institute of Biochemistry, NAS of Ukraine, 9, Leontovich Str., Kyiv 01054, Ukraine
| | - Halyna V Kosiakova
- Department of Lipid Biochemistry, Palladin Institute of Biochemistry, NAS of Ukraine, 9, Leontovich Str., Kyiv 01054, Ukraine
| | - Nadiya M Hula
- Department of Lipid Biochemistry, Palladin Institute of Biochemistry, NAS of Ukraine, 9, Leontovich Str., Kyiv 01054, Ukraine
| | - Sergiy O Kosterin
- Department of Muscle Biochemistry, Palladin Institute of Biochemistry, NAS of Ukraine, 9, Leontovich Str., Kyiv 01054, Ukraine.
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21
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Ziakova K, Kovalska M, Pilchova I, Dibdiakova K, Brodnanova M, Pokusa M, Kalenska D, Racay P. Involvement of Proteasomal and Endoplasmic Reticulum Stress in Neurodegeneration After Global Brain Ischemia. Mol Neurobiol 2023; 60:6316-6329. [PMID: 37452223 PMCID: PMC10533597 DOI: 10.1007/s12035-023-03479-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Accepted: 07/03/2023] [Indexed: 07/18/2023]
Abstract
A brief period of transient global brain ischemia leads to selective ischemic neurodegeneration associated with death of hippocampal CA1 pyramidal neurons days after reperfusion. The mechanism of such selective and delayed neurodegeneration is still uncertain. Our work aimed to study the involvement of proteasomal and endoplasmic reticulum (ER) stress in ischemic neurodegeneration. We have performed laser scanning confocal microscopy analysis of brain slices from control and experimental animals that underwent global brain ischemia for 15 min and varying times of reperfusion. We have focused on ubiquitin, PUMA, a proapoptotic protein of the Bcl-2 family overexpressed in response to both proteasomal and ER stress, and p53, which controls expression of PUMA. We have also examined the expression of HRD1, an E3 ubiquitin ligase that was shown to be overexpressed after ER stress. We have also examined potential crosstalk between proteasomal and ER stress using cellular models of both proteasomal and ER stress. We demonstrate that global brain ischemia is associated with an appearance of distinct immunoreactivity of ubiquitin, PUMA and p53 in pyramidal neurons of the CA1 layer of the hippocampus 72 h after ischemic insults. Such changes correlate with a delay and selectivity of ischemic neurodegeneration. Immunoreactivity of HRD1 observed in all investigated regions of rat brain was transiently absent in both CA1 and CA3 pyramidal neurones 24 h after ischemia in the hippocampus, which does not correlate with a delay and selectivity of ischemic neurodegeneration. We do not document significant crosstalk between proteasomal and ER stress. Our results favour dysfunction of the ubiquitin proteasome system and consequent p53-induced expression of PUMA as the main mechanisms responsible for selective and delayed degeneration of pyramidal neurons of the hippocampal CA1 layer in response to global brain ischemia.
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Affiliation(s)
- Katarina Ziakova
- Biomedical Center, Jessenius Faculty of Medicine in Martin, Comenius University in Bratislava, Martin, Slovakia
| | - Maria Kovalska
- Department of Histology and Embryology, Jessenius Faculty of Medicine in Martin, Comenius University in Bratislava, Martin, Slovakia
| | - Ivana Pilchova
- Biomedical Center, Jessenius Faculty of Medicine in Martin, Comenius University in Bratislava, Martin, Slovakia
| | - Katarina Dibdiakova
- Department of Medical Biochemistry, Jessenius Faculty of Medicine in Martin, Comenius University in Bratislava, Mala Hora 4D, SK-03601, Martin, Slovak Republic
| | - Maria Brodnanova
- Biomedical Center, Jessenius Faculty of Medicine in Martin, Comenius University in Bratislava, Martin, Slovakia
| | - Michal Pokusa
- Biomedical Center, Jessenius Faculty of Medicine in Martin, Comenius University in Bratislava, Martin, Slovakia
| | - Dagmar Kalenska
- Department of Anatomy, Jessenius Faculty of Medicine in Martin, Comenius University in Bratislava, Martin, Slovakia
| | - Peter Racay
- Department of Medical Biochemistry, Jessenius Faculty of Medicine in Martin, Comenius University in Bratislava, Mala Hora 4D, SK-03601, Martin, Slovak Republic.
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22
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Harvey-Jones K, Lange F, Verma V, Bale G, Meehan C, Avdic-Belltheus A, Hristova M, Sokolska M, Torrealdea F, Golay X, Parfentyeva V, Durduran T, Bainbridge A, Tachtsidis I, Robertson NJ, Mitra S. Early assessment of injury with optical markers in a piglet model of neonatal encephalopathy. Pediatr Res 2023; 94:1675-1683. [PMID: 37308684 PMCID: PMC10624614 DOI: 10.1038/s41390-023-02679-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Revised: 04/25/2023] [Accepted: 05/08/2023] [Indexed: 06/14/2023]
Abstract
BACKGROUND Opportunities for adjunct therapies with cooling in neonatal encephalopathy are imminent; however, robust biomarkers of early assessment are lacking. Using an optical platform of broadband near-infrared spectroscopy and diffuse correlation spectroscopy to directly measure mitochondrial metabolism (oxCCO), oxygenation (HbD), cerebral blood flow (CBF), we hypothesised optical indices early (1-h post insult) after hypoxia-ischaemia (HI) predicts insult severity and outcome. METHODS Nineteen newborn large white piglets underwent continuous neuromonitoring as controls or following moderate or severe HI. Optical indices were expressed as mean semblance (phase difference) and coherence (spectral similarity) between signals using wavelet analysis. Outcome markers included the lactate/N-acetyl aspartate (Lac/NAA) ratio at 6 h on proton MRS and TUNEL cell count. RESULTS CBF-HbD semblance (cerebrovascular dysfunction) correlated with BGT and white matter (WM) Lac/NAA (r2 = 0.46, p = 0.004, r2 = 0.45, p = 0.004, respectively), TUNEL cell count (r2 = 0.34, p = 0.02) and predicted both initial insult (r2 = 0.62, p = 0.002) and outcome group (r2 = 0.65 p = 0.003). oxCCO-HbD semblance (cerebral metabolic dysfunction) correlated with BGT and WM Lac/NAA (r2 = 0.34, p = 0.01 and r2 = 0.46, p = 0.002, respectively) and differentiated between outcome groups (r2 = 0.43, p = 0.01). CONCLUSION Optical markers of both cerebral metabolic and vascular dysfunction 1 h after HI predicted injury severity and subsequent outcome in a pre-clinical model. IMPACT This study highlights the possibility of using non-invasive optical biomarkers for early assessment of injury severity following neonatal encephalopathy, relating to the outcome. Continuous cot-side monitoring of these optical markers can be useful for disease stratification in the clinical population and for identifying infants who might benefit from future adjunct neuroprotective therapies beyond cooling.
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Affiliation(s)
| | - Frederic Lange
- Department of Medical Physics and Biomedical Engineering, University College London, London, UK
| | - Vinita Verma
- Institute for Women's Health, University College London, London, UK
| | - Gemma Bale
- Department of Engineering and Department of Physics, University of Cambridge, Cambridge, UK
| | | | | | - Mariya Hristova
- Institute for Women's Health, University College London, London, UK
| | - Magdalena Sokolska
- Medical Physics and Biomedical Engineering, University College London Hospital, London, UK
| | - Francisco Torrealdea
- Medical Physics and Biomedical Engineering, University College London Hospital, London, UK
| | - Xavier Golay
- Institute of Neurology, University College London, London, UK
| | - Veronika Parfentyeva
- ICFO-Institut de Ciències Fotòniques, The Barcelona Institute of Science and Technology, Castelldefels (Barcelona), Spain
| | - Turgut Durduran
- ICFO-Institut de Ciències Fotòniques, The Barcelona Institute of Science and Technology, Castelldefels (Barcelona), Spain
- Institució Catalana de Recerca i Estudis Avançats (ICREA), Barcelona, Spain
| | - Alan Bainbridge
- Medical Physics and Biomedical Engineering, University College London Hospital, London, UK
| | - Ilias Tachtsidis
- Department of Medical Physics and Biomedical Engineering, University College London, London, UK
| | | | - Subhabrata Mitra
- Institute for Women's Health, University College London, London, UK.
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23
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Li Y, Liu SB, Ni W, Gurzadyan GG, Wu Y, Wang J, Kuang GC, Jiang W. Near-Infrared BODIPY Photosensitizer for Modulating Mitochondrial Fusion Proteins and Inhibiting Choroidal Neovascularization. ACS APPLIED MATERIALS & INTERFACES 2023; 15:48027-48037. [PMID: 37812497 DOI: 10.1021/acsami.3c11053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/11/2023]
Abstract
Photosensitizers have emerged as cytotoxic reactive oxygen species (ROS) activators in photodynamic therapy (PDT), which induced cell apoptosis. As the major contributors to ROS and oxidative stress, mitochondria play an important role in cell apoptosis. Although there are many reports about near-infrared 4,4-difluoro-4-bora-3a,4a-diaza-s-indacene (BODIPY) as photosensitizers (PSs) for PDT, this kind of PS has rarely been used for treating mitochondrial function and choroidal neovascularization application at the same time. Herein, a novel near-infrared PS (BDP2) characterized by good water solubility, long wavelength excitation, and high ROS quantum yield has been made. Under near-infrared light irradiation, BDP2 would generate ROS with high yield, induce a mitochondrial morphology change, and trigger cell apoptosis by changing the fusion protein level. Deep investigation revealed that BDP2 can cause oxidative stress, break the balance between fusion and fission of mitochondrial dynamics protein through decreasing fusion protein MFN2 and OPA1 expression, and finally cause cell apoptosis. Due to these characteristics, the BDP2 PS was used to treat choroidal neovascularization in animal models and can inhibit neovascularization.
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Affiliation(s)
- Yue Li
- Department of Ophthalmology, The Second Xiangya Hospital, Central South University, Changsha 410011, Hunan, The People's Republic of China
- Hunan Clinical Research Center of Ophthalmic Disease, Changsha 410011, Hunan, The People's Republic of China
| | - Shi-Bo Liu
- State Key Laboratory of Powder Metallurgy, Central South University, Lushan South Road 932, Yuelu District, Changsha 410083, Hunan, The People's Republic of China
| | - Wenjun Ni
- Institute of Artificial Photosynthesis, State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024, Liaoning, The People's Republic of China
| | - Gagik G Gurzadyan
- Institute of Artificial Photosynthesis, State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024, Liaoning, The People's Republic of China
| | - Yongquan Wu
- Key Laboratory of Organo-pharmaceutical Chemistry, School of Chemistry and Chemical Engineering, Gannan Normal University, Ganzhou 341000, Jiangxi, The People's Republic of China
| | - Jun Wang
- Department of Ophthalmology, The Second Xiangya Hospital, Central South University, Changsha 410011, Hunan, The People's Republic of China
- Hunan Clinical Research Center of Ophthalmic Disease, Changsha 410011, Hunan, The People's Republic of China
| | - Gui-Chao Kuang
- State Key Laboratory of Powder Metallurgy, Central South University, Lushan South Road 932, Yuelu District, Changsha 410083, Hunan, The People's Republic of China
| | - Wenmin Jiang
- Department of Ophthalmology, The Second Xiangya Hospital, Central South University, Changsha 410011, Hunan, The People's Republic of China
- Hunan Clinical Research Center of Ophthalmic Disease, Changsha 410011, Hunan, The People's Republic of China
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24
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Korczowska-Łącka I, Słowikowski B, Piekut T, Hurła M, Banaszek N, Szymanowicz O, Jagodziński PP, Kozubski W, Permoda-Pachuta A, Dorszewska J. Disorders of Endogenous and Exogenous Antioxidants in Neurological Diseases. Antioxidants (Basel) 2023; 12:1811. [PMID: 37891890 PMCID: PMC10604347 DOI: 10.3390/antiox12101811] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Revised: 09/19/2023] [Accepted: 09/27/2023] [Indexed: 10/29/2023] Open
Abstract
In diseases of the central nervous system, such as Alzheimer's disease (AD), Parkinson's disease (PD), stroke, amyotrophic lateral sclerosis (ALS), Huntington's disease (HD), and even epilepsy and migraine, oxidative stress load commonly surpasses endogenous antioxidative capacity. While oxidative processes have been robustly implicated in the pathogenesis of these diseases, the significance of particular antioxidants, both endogenous and especially exogenous, in maintaining redox homeostasis requires further research. Among endogenous antioxidants, enzymes such as catalase, superoxide dismutase, and glutathione peroxidase are central to disabling free radicals, thereby preventing oxidative damage to cellular lipids, proteins, and nucleic acids. Whether supplementation with endogenously occurring antioxidant compounds such as melatonin and glutathione carries any benefit, however, remains equivocal. Similarly, while the health benefits of certain exogenous antioxidants, including ascorbic acid (vitamin C), carotenoids, polyphenols, sulforaphanes, and anthocyanins are commonly touted, their clinical efficacy and effectiveness in particular neurological disease contexts need to be more robustly defined. Here, we review the current literature on the cellular mechanisms mitigating oxidative stress and comment on the possible benefit of the most common exogenous antioxidants in diseases such as AD, PD, ALS, HD, stroke, epilepsy, and migraine. We selected common neurological diseases of a basically neurodegenerative nature.
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Affiliation(s)
- Izabela Korczowska-Łącka
- Laboratory of Neurobiology, Department of Neurology, Poznan University of Medical Sciences, 61-701 Poznan, Poland (M.H.)
| | - Bartosz Słowikowski
- Department of Biochemistry and Molecular Biology, Poznan University of Medical Sciences, 61-701 Poznan, Poland; (B.S.); (P.P.J.)
| | - Thomas Piekut
- Laboratory of Neurobiology, Department of Neurology, Poznan University of Medical Sciences, 61-701 Poznan, Poland (M.H.)
| | - Mikołaj Hurła
- Laboratory of Neurobiology, Department of Neurology, Poznan University of Medical Sciences, 61-701 Poznan, Poland (M.H.)
| | - Natalia Banaszek
- Laboratory of Neurobiology, Department of Neurology, Poznan University of Medical Sciences, 61-701 Poznan, Poland (M.H.)
| | - Oliwia Szymanowicz
- Laboratory of Neurobiology, Department of Neurology, Poznan University of Medical Sciences, 61-701 Poznan, Poland (M.H.)
| | - Paweł P. Jagodziński
- Department of Biochemistry and Molecular Biology, Poznan University of Medical Sciences, 61-701 Poznan, Poland; (B.S.); (P.P.J.)
| | - Wojciech Kozubski
- Chair and Department of Neurology, Poznan University of Medical Sciences, 61-701 Poznan, Poland
| | - Agnieszka Permoda-Pachuta
- Department of Psychiatry, Psychotherapy and Early Intervention, Medical University of Lublin, 20-059 Lublin, Poland
| | - Jolanta Dorszewska
- Laboratory of Neurobiology, Department of Neurology, Poznan University of Medical Sciences, 61-701 Poznan, Poland (M.H.)
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25
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Tian HY, Huang BY, Nie HF, Chen XY, Zhou Y, Yang T, Cheng SW, Mei ZG, Ge JW. The Interplay between Mitochondrial Dysfunction and Ferroptosis during Ischemia-Associated Central Nervous System Diseases. Brain Sci 2023; 13:1367. [PMID: 37891735 PMCID: PMC10605666 DOI: 10.3390/brainsci13101367] [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: 08/01/2023] [Revised: 09/12/2023] [Accepted: 09/22/2023] [Indexed: 10/29/2023] Open
Abstract
Cerebral ischemia, a leading cause of disability and mortality worldwide, triggers a cascade of molecular and cellular pathologies linked to several central nervous system (CNS) disorders. These disorders primarily encompass ischemic stroke, Alzheimer's disease (AD), Parkinson's disease (PD), epilepsy, and other CNS conditions. Despite substantial progress in understanding and treating the underlying pathological processes in various neurological diseases, there is still a notable absence of effective therapeutic approaches aimed specifically at mitigating the damage caused by these illnesses. Remarkably, ischemia causes severe damage to cells in ischemia-associated CNS diseases. Cerebral ischemia initiates oxygen and glucose deprivation, which subsequently promotes mitochondrial dysfunction, including mitochondrial permeability transition pore (MPTP) opening, mitophagy dysfunction, and excessive mitochondrial fission, triggering various forms of cell death such as autophagy, apoptosis, as well as ferroptosis. Ferroptosis, a novel type of regulated cell death (RCD), is characterized by iron-dependent accumulation of lethal reactive oxygen species (ROS) and lipid peroxidation. Mitochondrial dysfunction and ferroptosis both play critical roles in the pathogenic progression of ischemia-associated CNS diseases. In recent years, growing evidence has indicated that mitochondrial dysfunction interplays with ferroptosis to aggravate cerebral ischemia injury. However, the potential connections between mitochondrial dysfunction and ferroptosis in cerebral ischemia have not yet been clarified. Thus, we analyzed the underlying mechanism between mitochondrial dysfunction and ferroptosis in ischemia-associated CNS diseases. We also discovered that GSH depletion and GPX4 inactivation cause lipoxygenase activation and calcium influx following cerebral ischemia injury, resulting in MPTP opening and mitochondrial dysfunction. Additionally, dysfunction in mitochondrial electron transport and an imbalanced fusion-to-fission ratio can lead to the accumulation of ROS and iron overload, which further contribute to the occurrence of ferroptosis. This creates a vicious cycle that continuously worsens cerebral ischemia injury. In this study, our focus is on exploring the interplay between mitochondrial dysfunction and ferroptosis, which may offer new insights into potential therapeutic approaches for the treatment of ischemia-associated CNS diseases.
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Affiliation(s)
- He-Yan Tian
- School of Medical Technology and Nursing, Shenzhen Polytechnic University, Xili Lake, Nanshan District, Shenzhen 518000, China;
| | - Bo-Yang Huang
- Key Laboratory of Hunan Province for Integrated Traditional Chinese and Western Medicine on Prevention and Treatment of Cardio-Cerebral Diseases, Hunan University of Chinese Medicine, Changsha 410208, China
| | - Hui-Fang Nie
- Key Laboratory of Hunan Province for Integrated Traditional Chinese and Western Medicine on Prevention and Treatment of Cardio-Cerebral Diseases, Hunan University of Chinese Medicine, Changsha 410208, China
| | - Xiang-Yu Chen
- Key Laboratory of Hunan Province for Integrated Traditional Chinese and Western Medicine on Prevention and Treatment of Cardio-Cerebral Diseases, Hunan University of Chinese Medicine, Changsha 410208, China
| | - Yue Zhou
- Key Laboratory of Hunan Province for Integrated Traditional Chinese and Western Medicine on Prevention and Treatment of Cardio-Cerebral Diseases, Hunan University of Chinese Medicine, Changsha 410208, China
| | - Tong Yang
- Key Laboratory of Hunan Province for Integrated Traditional Chinese and Western Medicine on Prevention and Treatment of Cardio-Cerebral Diseases, Hunan University of Chinese Medicine, Changsha 410208, China
| | - Shao-Wu Cheng
- Key Laboratory of Hunan Province for Integrated Traditional Chinese and Western Medicine on Prevention and Treatment of Cardio-Cerebral Diseases, Hunan University of Chinese Medicine, Changsha 410208, China
| | - Zhi-Gang Mei
- Key Laboratory of Hunan Province for Integrated Traditional Chinese and Western Medicine on Prevention and Treatment of Cardio-Cerebral Diseases, Hunan University of Chinese Medicine, Changsha 410208, China
| | - Jin-Wen Ge
- Key Laboratory of Hunan Province for Integrated Traditional Chinese and Western Medicine on Prevention and Treatment of Cardio-Cerebral Diseases, Hunan University of Chinese Medicine, Changsha 410208, China
- Hunan Academy of Traditional Chinese Medicine, Changsha 410208, China
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Wei L, Li X, Wei Q, Chen L, Xu L, Zhou P. Oxidative Stress-mediated Sprouty-related Protein with an EVH1 Domain 1 Down-regulation Contributes to Resisting Oxidative Injury in Microglia. Neuroscience 2023; 526:13-20. [PMID: 37343716 DOI: 10.1016/j.neuroscience.2023.06.012] [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: 02/22/2023] [Revised: 06/11/2023] [Accepted: 06/13/2023] [Indexed: 06/23/2023]
Abstract
Microglia play an ambiguous role in injury or repair after ischemia-reperfusion, and the induced oxidative stress serves as an important signal, mediates direct toxicity to nerve cells, and eventually simulates complex physiological processes such as activation of microglia to repair the damaged area. Herein, we show that sprouty-related protein with an EVH1 domain 1 (SPRED1) may act as a regulatory node in this phenomenon. The ischemic brain of an ischemia-reperfusion rat model constructed by middle cerebral artery occlusion (MCAO) showed an increase in oxidative stress and downregulation of SPRED1 expression. Hydrogen peroxide (H2O2)-simulated oxidative damage exerted a fluctuating regulatory effect on SPRED1 level in BV2 microglia, which is highly consistent with its regulatory effect on nuclear factor kappa B (NF-κB) transcription factor p65. Interestingly, SPRED1 overexpressed in BV2 cells did not exert any regulatory effect on p38 mitogen-activated protein kinase (MAPK), NF-κB p65, and pro-inflammatory cytokines. However, treatment of BV2 cells overexpressing SPRED1 with H2O2 led to significant changes in the above phenomena as well as their viability and apoptosis. In the absence of H2O2 induction, SPRED overexpression alone did not mediate such an effect. These findings indicate that SPRED1 tends to maintain intracellular homeostasis of signals, but the oxidative stress derived from ischemia-reperfusion can easily degrade SPRED1 and consequently re-activate these restricted signals and alter the behavior of microglia. Thus, our study reveals a novel role of SPRED1 in microglia in response to cerebral ischemia-induced oxidative stress.
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Affiliation(s)
- Li Wei
- Department of Blood Transfusion, the Third Affiliated Hospital of Soochow University, Changzhou, China
| | - Xin Li
- Department of Anesthesiology, The Third Affiliated Hospital of Soochow University, Changzhou, China
| | - Qianfeng Wei
- Department of Neurosurgery, The Third Affiliated Hospital of Soochow University, Changzhou, China
| | - Lin Chen
- Department of Neurosurgery, The Third Affiliated Hospital of Soochow University, Changzhou, China
| | - Li Xu
- Institute of Translational Medicine, School of Medicine, Yangzhou University, Yangzhou, Jiangsu 225001, China.
| | - Peng Zhou
- Department of Neurosurgery, The Third Affiliated Hospital of Soochow University, Changzhou, China.
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Yan Z, Li S, Wang Y, Guo Y, Zhang L. Protective effects of a novel glycogen phosphorylase inhibitor against cerebral ischemia-reperfusion injury in mice. Future Med Chem 2023; 15:587-597. [PMID: 37097106 DOI: 10.4155/fmc-2023-0038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/26/2023] Open
Abstract
Aim: To evaluate the effects of a novel glycogen phosphorylase inhibitor (NGPI) on cerebral ischemia-reperfusion injury (CIRI). Methods: Cerebral ischemia was induced in mice using a modified bilateral common carotid artery ligation model. To assess the effects of NGPI against CIRI, mice which had been administered with different doses of NGPI (1.25, 2.5, 5 mg/kg/day) for 7 days before the injury were evaluated for infarct volume, the apoptosis level of brain tissue, integrity of brain tissue and oxidative stress level. Results: NGPI effectively improved the infarct area, apoptosis of neurons, integrity of brain tissue and oxidative stress level of mice with CIRI. Conclusion: NGPI could effectively improve CIRI and deserves further study.
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Affiliation(s)
- Zhiwei Yan
- Key Laboratory of Traditional Chinese Medicine Research & Development of Hebei Province, Institute of Traditional Chinese Medicine, Chengde Medical University, Chengde, Hebei, 067000, China
| | - Shuai Li
- Key Laboratory of Traditional Chinese Medicine Research & Development of Hebei Province, Institute of Traditional Chinese Medicine, Chengde Medical University, Chengde, Hebei, 067000, China
| | - Youde Wang
- Key Laboratory of Traditional Chinese Medicine Research & Development of Hebei Province, Institute of Traditional Chinese Medicine, Chengde Medical University, Chengde, Hebei, 067000, China
| | - Yachun Guo
- Department of Pathogen Biology, Chengde Medical University, Chengde, Hebei, 067000, China
| | - Liying Zhang
- Key Laboratory of Traditional Chinese Medicine Research & Development of Hebei Province, Institute of Traditional Chinese Medicine, Chengde Medical University, Chengde, Hebei, 067000, China
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28
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Kang X, Liu L, Wang W, Wang Y. Effects of different doses of dopamine receptor agonist pramipexole on neurobehaviors and changes of mitochondrial membrane potentials in rats with global cerebral ischemia-reperfusion injury. J Stroke Cerebrovasc Dis 2023; 32:107142. [PMID: 37105127 DOI: 10.1016/j.jstrokecerebrovasdis.2023.107142] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Revised: 04/12/2023] [Accepted: 04/14/2023] [Indexed: 04/29/2023] Open
Abstract
OBJECTIVE To explore the effects of different doses of dopamine receptor agonist pramipexole on neurobehaviors and changes of mitochondrial membrane potential in rats with global cerebral ischemia-reperfusion injury. METHODS A total of 75 SPF Sprague-Dawley male rats were randomly divided into sham group (n=20), model group (n=20), pramipexole administration group (n=35). The rat model of global cerebral ischemia-reperfusion injury was prepared by the modified Pulsinelli's four-vessel occlusion method. Pramipexole administration group was administered intraperitoneally in rats with global cerebral ischemia-reperfusion injury at different doses of pramipexole 0.25 mg/kg, 0.5 mg/kg, 1 mg/kg, 2 mg/kg, once a day for 14 consecutive days. Based on the results of modified neurological severity scores, open field test and morphology by Nissl's staining to determine the optimal dose of pramipexole. Mitochondrial membrane potential in the optimal dose of pramipexole administration group were measured by the JC-1 fluorescent probe staining method. RESULTS 1. Different doses of pramipexole 0.25 mg/kg, 0.5 mg/kg, 1 mg/kg, and 2 mg/kg, were used as drug administration in rats with global cerebral ischemia-reperfusion injury for 14 consecutive days, and we found that all four doses of pramipexole could improve the modified neurological severity scores of rats with global cerebral ischemia-reperfusion injury to varying degrees, but only 0.5 mg/kg pramipexole at 1, 3, 7 and 14 days consistently reduced modified neurological severity scores and improved neurological function in rats with global cerebral ischemia-reperfusion injury. In the open-field test, only 0.5 mg/kg pramipexole increased the number of entries into the central zone, duration spent in the central zone, total distance travelled in the open field and average velocity, which improved the spontaneous activities and reduced anxiety and depression of rats with global cerebral ischemia-reperfusion injury. 2. Different doses of pramipexole 0.25 mg/kg, 0.5 mg/kg, 1 mg/kg, and 2 mg/kg for 14 consecutive days significantly increased the number of surviving neurons in the hippocampal CA1 subfield in rats with global cerebral ischemia-reperfusion injury to varying degrees. Based on these results, we tentatively found that 0.5 mg/kg pramipexole may be the optimal dose in all of the above. 3. We found that 0.5 mg/kg pramipexole significantly increased the mitochondrial membrane potential in rats after global cerebral ischemia-reperfusion injury. CONCLUSION Different doses of dopamine receptor agonist pramipexole improved neurological function of rats with global cerebral ischemia-reperfusion injury to varying degrees, and 0.5 mg/kg pramipexole may be the optimal dose in all of the above. Pramipexole may produce neuroprotective effects by protecting neurons in the hippocampus and improving the mitochondrial membrane potential after global cerebral ischemia-reperfusion injury.
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Affiliation(s)
- Xiaoyu Kang
- School of Rehabilitation, Capital Medical University, Beijing, China; Beijing Boai hospital, China Rehabilitation Research Center, No. 10, Jiao Men Bei Road, Fengtai District, 100068 Beijing, China
| | - Lixu Liu
- School of Rehabilitation, Capital Medical University, Beijing, China; Beijing Boai hospital, China Rehabilitation Research Center, No. 10, Jiao Men Bei Road, Fengtai District, 100068 Beijing, China; Beijing Key Laboratory of Neural Injury and Rehabilitation, Beijing, China.
| | - Wenzhu Wang
- Beijing Key Laboratory of Neural Injury and Rehabilitation, Beijing, China; Institute of Rehabilitation Medicine of China, Chinese Institute of Rehabilitation Science, China Rehabilitation Research Center, Beijing, China
| | - Yunlei Wang
- School of Rehabilitation, Capital Medical University, Beijing, China; Beijing Boai hospital, China Rehabilitation Research Center, No. 10, Jiao Men Bei Road, Fengtai District, 100068 Beijing, China
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Liu JF, Su G, Chen LX, Zhou JP, Gao J, Zhang JJ, Wu QH, Chen W, Chen DY, Zhang ZC. Irisin Attenuates Apoptosis Following Ischemia-Reperfusion Injury Through Improved Mitochondria Dynamics and ROS Suppression Mediated Through the PI3K/Akt/mTOR Axis. Mol Neurobiol 2023:10.1007/s12035-023-03336-5. [PMID: 37060502 DOI: 10.1007/s12035-023-03336-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2022] [Accepted: 04/03/2023] [Indexed: 04/16/2023]
Abstract
Irisin is a muscle-derived hormone that promotes the survival of motor neurons and enhances muscle size following injury. In this study, we investigated the beneficial effects and mechanism(s) of action of irisin in response to cerebral ischemia-reperfusion injury (CIRI). Right-middle cerebral artery occlusion (MCAO) and hypoxia/reoxygenation (H/R) models were generated in C57BL/6 J mice. Mouse neuronal cell lines (NSC-34) were used to confirm the molecular mechanisms of the protection afforded by irisin in response to CIRI. We found that irisin (250 μg/kg) improved cerebral function and reduced the cerebral infarct volume following CIRI. Irisin also protected neuronal cells against ischemia-reperfusion (I/R) induced apoptosis, assessed via TUNEL, and cleaved Caspase-3 staining. Western blotting of neuronal tissue from irisin treated I/R mice showed lower expression of pro-apoptotic Bax and caspase-9 (P < 0.001 and P < 0.01) and increased levels of the pro-survival protein Bcl-2 (P < 0.01 & P < 0.001 vs. I/R). Irisin also reduced the levels of reactive oxygen species (ROS) characterized through malondialdehyde (MDA) assays. Irisin was found to maintain mitochondrial homeostasis through the suppression of mitochondrial fission-linked dynamin-related protein 1 in CIRI mice (P < 0.01 and P < 0.05 v. I/R cohort). Moreover, mitochondrial fusion-related protein (Mfn2) and Opa1 expression were rescued following irisin treatment (P < 0.001 and P < 0.01 v. I/R cohort). Cell-based assays showed that irisin activates PI3K/AKT/mTOR signaling in the neurons of CIRI mice. Furthermore, the beneficial effects of irisin on NSC-34 cell-survival, mitochondrial function, and ROS generation were reversed by VS-5584, a highly specific PI3K/AKT/mTOR inhibitor. Collectively, these data highlight the ability of irisin to alleviate CIRI in vivo and in vitro. The mechanisms of action of irisin include the attenuation of apoptosis through the prevention of mitochondrial fission and increased mitochondrial fusion and the alleviation of oxidative stress through activation of the PI3K/AKT/mTOR axis. We therefore identify irisin as a much-needed therapeutic for CIRI.
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Affiliation(s)
- Ji-Fei Liu
- Department of Neurology, Lanzhou University Second Hospital, No.82, Cuiyingmen, Lanzhou, 730030, Gansu, China
| | - Gang Su
- Institute of Genetics, School of Basic Medical Sciences, Lanzhou University, Lanzhou, 730000, Gansu, China
| | - Li-Xia Chen
- Department of Neurology, Lanzhou University Second Hospital, No.82, Cuiyingmen, Lanzhou, 730030, Gansu, China
| | - Juan-Ping Zhou
- Department of Neurology, Lanzhou University Second Hospital, No.82, Cuiyingmen, Lanzhou, 730030, Gansu, China
| | - Juan Gao
- Department of Neurology, Lanzhou University Second Hospital, No.82, Cuiyingmen, Lanzhou, 730030, Gansu, China
| | - Jia-Jia Zhang
- Department of Neurology, Lanzhou University Second Hospital, No.82, Cuiyingmen, Lanzhou, 730030, Gansu, China
| | - Qiong-Hui Wu
- Department of Neurology, Lanzhou University Second Hospital, No.82, Cuiyingmen, Lanzhou, 730030, Gansu, China
| | - Wei Chen
- Department of Neurology, Lanzhou University Second Hospital, No.82, Cuiyingmen, Lanzhou, 730030, Gansu, China
| | - De-Yi Chen
- Department of Neurology, Lanzhou University Second Hospital, No.82, Cuiyingmen, Lanzhou, 730030, Gansu, China
| | - Zhen-Chang Zhang
- Department of Neurology, Lanzhou University Second Hospital, No.82, Cuiyingmen, Lanzhou, 730030, Gansu, China.
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30
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Tusa I, Menconi A, Tubita A, Rovida E. Pathophysiological Impact of the MEK5/ERK5 Pathway in Oxidative Stress. Cells 2023; 12:cells12081154. [PMID: 37190064 DOI: 10.3390/cells12081154] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2023] [Revised: 03/22/2023] [Accepted: 04/06/2023] [Indexed: 05/17/2023] Open
Abstract
Oxidative stress regulates many physiological and pathological processes. Indeed, a low increase in the basal level of reactive oxygen species (ROS) is essential for various cellular functions, including signal transduction, gene expression, cell survival or death, as well as antioxidant capacity. However, if the amount of generated ROS overcomes the antioxidant capacity, excessive ROS results in cellular dysfunctions as a consequence of damage to cellular components, including DNA, lipids and proteins, and may eventually lead to cell death or carcinogenesis. Both in vitro and in vivo investigations have shown that activation of the mitogen-activated protein kinase kinase 5/extracellular signal-regulated kinase 5 (MEK5/ERK5) pathway is frequently involved in oxidative stress-elicited effects. In particular, accumulating evidence identified a prominent role of this pathway in the anti-oxidative response. In this respect, activation of krüppel-like factor 2/4 and nuclear factor erythroid 2-related factor 2 emerged among the most frequent events in ERK5-mediated response to oxidative stress. This review summarizes what is known about the role of the MEK5/ERK5 pathway in the response to oxidative stress in pathophysiological contexts within the cardiovascular, respiratory, lymphohematopoietic, urinary and central nervous systems. The possible beneficial or detrimental effects exerted by the MEK5/ERK5 pathway in the above systems are also discussed.
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Affiliation(s)
- Ignazia Tusa
- Department of Experimental and Clinical Biomedical Sciences "Mario Serio", University of Florence, 50134 Florence, Italy
| | - Alessio Menconi
- Department of Experimental and Clinical Biomedical Sciences "Mario Serio", University of Florence, 50134 Florence, Italy
| | - Alessandro Tubita
- Department of Experimental and Clinical Biomedical Sciences "Mario Serio", University of Florence, 50134 Florence, Italy
| | - Elisabetta Rovida
- Department of Experimental and Clinical Biomedical Sciences "Mario Serio", University of Florence, 50134 Florence, Italy
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31
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Chavda V, Lu B. Reverse Electron Transport at Mitochondrial Complex I in Ischemic Stroke, Aging, and Age-Related Diseases. Antioxidants (Basel) 2023; 12:antiox12040895. [PMID: 37107270 PMCID: PMC10135819 DOI: 10.3390/antiox12040895] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2023] [Revised: 03/28/2023] [Accepted: 03/31/2023] [Indexed: 04/09/2023] Open
Abstract
Stroke is one of the leading causes of morbidity and mortality worldwide. A main cause of brain damage by stroke is ischemia-reperfusion (IR) injury due to the increased production of reactive oxygen species (ROS) and energy failure caused by changes in mitochondrial metabolism. Ischemia causes a build-up of succinate in tissues and changes in the mitochondrial NADH: ubiquinone oxidoreductase (complex I) activity that promote reverse electron transfer (RET), in which a portion of the electrons derived from succinate are redirected from ubiquinol along complex I to reach the NADH dehydrogenase module of complex I, where matrix NAD+ is converted to NADH and excessive ROS is produced. RET has been shown to play a role in macrophage activation in response to bacterial infection, electron transport chain reorganization in response to changes in the energy supply, and carotid body adaptation to changes in the oxygen levels. In addition to stroke, deregulated RET and RET-generated ROS (RET-ROS) have been implicated in tissue damage during organ transplantation, whereas an RET-induced NAD+/NADH ratio decrease has been implicated in aging, age-related neurodegeneration, and cancer. In this review, we provide a historical account of the roles of ROS and oxidative damage in the pathogenesis of ischemic stroke, summarize the latest developments in our understanding of RET biology and RET-associated pathological conditions, and discuss new ways to target ischemic stroke, cancer, aging, and age-related neurodegenerative diseases by modulating RET.
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Affiliation(s)
- Vishal Chavda
- Department of Pathology, School of Medicine, Stanford University, Stanford, CA 94305, USA
| | - Bingwei Lu
- Department of Pathology, School of Medicine, Stanford University, Stanford, CA 94305, USA
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32
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Wan H, Yan YD, Hu XM, Shang L, Chen YH, Huang YX, Zhang Q, Yan WT, Xiong K. Inhibition of mitochondrial VDAC1 oligomerization alleviates apoptosis and necroptosis of retinal neurons following OGD/R injury. Ann Anat 2023; 247:152049. [PMID: 36690044 DOI: 10.1016/j.aanat.2023.152049] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Revised: 12/28/2022] [Accepted: 01/03/2023] [Indexed: 01/21/2023]
Abstract
Ischemia-reperfusion (I/R) injury is a common pathological mechanism in many retinal diseases, which can lead to cell death via mitochondrial dysfunction. Voltage-dependent anion channel 1 (VDAC1), which is mainly located in the outer mitochondrial membrane, is the gatekeeper of mitochondria. The permeability of mitochondrial membrane can be regulated by controlling the oligomerization of VDAC1. However, the functional mechanism of VDAC1 in retinal I/R injury was unclear. Our results demonstrate that oxygen-glucose deprivation and re-oxygenation (OGD/R) injury leads to apoptosis, necroptosis, and mitochondrial dysfunction of R28 cells. The OGD/R injury increases the levels of VDAC1 oligomerization. Inhibition of VDAC1 oligomerization by VBIT-12 rescued mitochondrial dysfunction by OGD/R and also reduced apoptosis/necroptosis of R28 cells. In vivo, the use of VBIT-12 significantly reduced aHIOP-induced neuronal death (apoptosis/necroptosis) in the rat retina. Our findings indicate that VDAC1 oligomers may open and enlarge mitochondrial membrane pores during OGD/R injury, leading to the release of death-related factors in mitochondria, resulting in apoptosis and necroptosis. This study provides a potential therapeutic strategy against ocular diseases caused by I/R injury.
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Affiliation(s)
- Hao Wan
- Department of Anatomy and Neurobiology, School of Basic Medical Science, Central South University, Changsha 410013, China
| | - Yan-di Yan
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Xi-Min Hu
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Lei Shang
- Jiangxi Research Institute of Ophthalmology and Visual Sciences, Affiliated Eye Hospital of Nanchang University, Nanchang 330006, China
| | - Yu-Hua Chen
- Department of Anatomy and Neurobiology, School of Basic Medical Science, Central South University, Changsha 410013, China
| | - Yan-Xia Huang
- Department of Anatomy and Neurobiology, School of Basic Medical Science, Central South University, Changsha 410013, China
| | - Qi Zhang
- Department of Anatomy and Neurobiology, School of Basic Medical Science, Central South University, Changsha 410013, China
| | - Wei-Tao Yan
- Department of Anatomy and Neurobiology, School of Basic Medical Science, Central South University, Changsha 410013, China.
| | - Kun Xiong
- Department of Anatomy and Neurobiology, School of Basic Medical Science, Central South University, Changsha 410013, China; Hunan Key Laboratory of Ophthalmology, Changsha 410008, China; Key Laboratory of Emergency and Trauma of Ministry of Education, Hainan Medical University, Haikou 571199, China.
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33
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Bigham NP, Wilson JJ. Investigation of Cobalt(III) Cage Complexes as Inhibitors of the Mitochondrial Calcium Uniporter. Eur J Inorg Chem 2023; 26:e202200735. [PMID: 37636126 PMCID: PMC10449033 DOI: 10.1002/ejic.202200735] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Indexed: 01/18/2023]
Abstract
The mitochondrial calcium uniporter (MCU) mediates uptake of calcium ions (Ca2+) into the mitochondria, a process that is vital for maintaining normal cellular function. Inhibitors of the MCU, the most promising of which are dinuclear ruthenium coordination compounds, have found use as both therapeutic agents and tools for studying the importance of this ion channel. In this study, six Co3+ cage compounds with sarcophagine-like ligands were assessed for their abilities to inhibit MCU-mediated mitochondrial Ca2+ uptake. These complexes were synthesized and characterized according to literature procedures and then investigated in cellular systems for their MCU-inhibitory activities. Among these six compounds, [Co(sen)]3+ (3, sen = 5-(4-amino-2-azabutyl)-5-methyl-3,7-diaza-1,9-nonanediamine) was identified to be a potent MCU inhibitor, with IC50 values of inhibition of 160 and 180 nM in permeabilized HeLa and HEK293T cells, respectively. Furthermore, the cellular uptake of compound 3 was determined, revealing moderate accumulation in cells. Most notably, 3 was demonstrated to operate in intact cells as an MCU inhibitor. Collectively, this work presents the viability of using cobalt coordination complexes as MCU inhibitors, providing a new direction for researchers to investigate in future studies.
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Affiliation(s)
- Nicholas P Bigham
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, NY, 14853, USA
| | - Justin J Wilson
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, NY, 14853, USA
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34
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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.
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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.
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35
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Zorina II, Avrova NF, Zakharova IO, Shpakov AO. Prospects for the Use of Intranasally Administered Insulin and Insulin-Like Growth Factor-1 in Cerebral Ischemia. BIOCHEMISTRY (MOSCOW) 2023; 88:374-391. [PMID: 37076284 DOI: 10.1134/s0006297923030070] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/28/2023]
Abstract
Current approaches to the treatment of stroke have significant limitations, and neuroprotective therapy is ineffective. In view of this, searching for effective neuroprotectors and developing new neuroprotective strategies remain a pressing topic in research of cerebral ischemia. Insulin and insulin-like growth factor-1 (IGF-1) play a key role in the brain functioning by regulating the growth, differentiation, and survival of neurons, neuronal plasticity, food intake, peripheral metabolism, and endocrine functions. Insulin and IGF-1 produce multiple effects in the brain, including neuroprotective action in cerebral ischemia and stroke. Experiments in animals and cell cultures have shown that under hypoxic conditions, insulin and IGF-1 improve energy metabolism in neurons and glial cells, promote blood microcirculation in the brain, restore nerve cell functions and neurotransmission, and produce the anti-inflammatory and antiapoptotic effects on brain cells. The intranasal route of insulin and IGF-1 administration is of particular interest in the clinical practice, since it allows controlled delivery of these hormones directly to the brain, bypassing the blood-brain barrier. Intranasally administered insulin alleviated cognitive impairments in elderly people with neurodegenerative and metabolic disorders; intranasally administered insulin and IGF-1 promoted survival of animals with ischemic stroke. The review discusses the published data and results of our own studies on the mechanisms of neuroprotective action of intranasally administered insulin and IGF-1 in cerebral ischemia, as well as the prospects of using these hormones for normalization of CNS functions and reduction of neurodegenerative changes in this pathology.
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Affiliation(s)
- Inna I Zorina
- Sechenov Institute of Evolutionary Physiology and Biochemistry of the Russian Academy of Sciences, Saint-Petersburg, 194223, Russia.
| | - Natalia F Avrova
- Sechenov Institute of Evolutionary Physiology and Biochemistry of the Russian Academy of Sciences, Saint-Petersburg, 194223, Russia
| | - Irina O Zakharova
- Sechenov Institute of Evolutionary Physiology and Biochemistry of the Russian Academy of Sciences, Saint-Petersburg, 194223, Russia
| | - Alexander O Shpakov
- Sechenov Institute of Evolutionary Physiology and Biochemistry of the Russian Academy of Sciences, Saint-Petersburg, 194223, Russia
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PHLDA1 knockdown alleviates mitochondrial dysfunction and endoplasmic reticulum stress-induced neuronal apoptosis via activating PPARγ in cerebral ischemia-reperfusion injury. Brain Res Bull 2023; 194:23-34. [PMID: 36681251 DOI: 10.1016/j.brainresbull.2023.01.007] [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: 08/11/2022] [Revised: 01/15/2023] [Accepted: 01/17/2023] [Indexed: 01/19/2023]
Abstract
Mitochondrial dysfunction and endoplasmic reticulum (ER) stress occur in ischemic stroke. The disruption of these two organelles can directly lead to cell death through various signaling pathways. Thus, investigation of the associated molecular mechanisms in cerebral ischemia is a prerequisite for stroke treatment. Pleckstrin homology-like domain family A member 1 (PHLDA1) is a multifunctional protein that can modulate mitochondrial function and ER stress in cardiomyocyte and cancer cells. This work studied the role of PHLDA1 in cerebral ischemic/reperfusion (I/R) injury and explored the underlying mechanisms associated with mitochondrial functions and ER stress. Middle cerebral artery occlusion/reperfusion (MCAO/R)-treated mice and oxygen-glucose deprivation/reoxygenation (OGD/R)-stimulated neurons were used as I/R models in vivo and in vitro, respectively. PHLDA1 was upregulated in ischemic penumbra of MCAO/R-induced mice and OGD/R-exposed neurons. In vitro, PHLDA1 knockdown protected neurons from OGD/R-induced apoptosis. In vivo, PHLDA1 silencing facilitated functional recovery and reduced cerebral infarct volume. Mechanistically, PHLDA1 knockdown promoted PPARγ nuclear translocation, which may mediate the effects on reversion of mitochondrial functions and alleviation of ER stress. In summary, PHLDA1 knockdown alleviates neuronal ischemic injuries in mice. PPARγ activation and mitochondrial dysfunction and endoplasmic reticulum stress attenuation are involved in the underlying mechanisms.
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The protection impact of tectoridin on PC12 cell preventing OGD/R-caused damage through PI3K/AKT signaling channel. Eur J Pharmacol 2023; 941:175491. [PMID: 36610685 DOI: 10.1016/j.ejphar.2023.175491] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Revised: 11/30/2022] [Accepted: 01/04/2023] [Indexed: 01/06/2023]
Abstract
The present work examined the effect exerted by tectoridin preventing oxygen glucose deprivation/reoxygenation (OGD/R) damage within PC12 cell. We incubated PC12 cells with Na2S2O4 (10 mM) for 2 h, and tectoridin at different concentrations was then added; based on methyl-thiazolyl-tetrazolium (MTT) and lactate dehydrogenase (LDH) tests, the protection impact was tested. 2',7'-dicholorofluorescein diacetate (DCFH-DA), Fluo-3AM, and 5, 5', 6, 6' -tetrachloro-1, 1', 3, 3' -tetraethyl-imidacarbocyanine iodide (JC-1) staining, and Western blotting were used for determining reactive oxygen species (ROS) level, intracellular Ca2+ content, mitochondrial membrane potential (MMP) and the related proteins contents. As a result, tectoridin could improve the cell viability and inhibit the release of LDH. In-depth studies demonstrated that tectoridin limited the overproduction of ROS and intracellular Ca2+ content and increased MMP, which showed a close association with ROS-mediated mitochondrial function. Moreover, tectoridin hindered apoptosis based on the up-regulation of the expressions of p-AKT, Bcl-2/Bax and p-mTOR. Furthermore, the level of Nrf2 was also improved by treatment of tectoridin. In addition, the expression of Bcl-2/Bax, p-Akt, p-mTOR, Nrf2, HO-1, NQO1 and GCLM were reduced by LY294002 and the protective role of tectoridin was limited by LY294002. The results unambiguously suggested that tectoridin reduced OGD/R-caused damage to PC12 cells and might ensure neuroprotection by stimulating the PI3K/AKT signaling channel.
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Pan T, Ye J, Li J, Gui K, Li J, Feng J, Ma Z, Lei P, Gao Y. Discovery of Terpene-Derived Quaternary Ring Compounds Containing an Oxime Moiety as Potential Fungicides. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023; 71:3164-3172. [PMID: 36748863 DOI: 10.1021/acs.jafc.2c07387] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Terpene-derived quaternary ring compounds with an oxime moiety were designed and prepared to create fungicides from natural products. A preliminary assessment of their antifungal activity against seven common pathogenic fungi was conducted, and the median effective concentration (EC50) values against Rhizoctonia solani were obtained. The effects of compound 6a19 (3-bromothiophene-containing), which had an outstanding EC50 value (1.62 μg/mL), on the morphology, ultrastructure, reactive oxygen species production, mitochondrial membrane potential, nuclear morphology, and defense-related and respiration-related enzyme activities of mycelia were evaluated. The test compound was speculated to obstruct the bio-oxidative process, inhibiting mycelial growth. Compound 6a19 exhibited a satisfactory in vivo control effect on leaf sheath-infected rice plants. After treating rice plants with 50, 100, and 200 μg/mL 6a19, the protective and therapeutic efficacy values were 48.3 and 70.3%, 58.6 and 75.7%, and 69.0 and 81.1%, respectively. Moreover, a linear quantitative structure-activity relationship (R2 = 0.932, F = 61.3, and S2 = 0.020) was established using density functional theory calculations. Four chemical descriptors that were crucial to the antifungal activity were analyzed: the number of occupied electronic levels of atoms, the minimum atomic orbital electronic population, maximum net atom charge for a H atom, and minimum net atomic charge. In overall consideration of experimental results, it was speculated that the target compounds satisfactorily inhibited R. solani by interfering with biological oxidation pathways, which provided an insight into the future intensive and systematic action mechanism. This research is promising for the invention of novel fungicides from natural terpenes with multiple potential targets and satisfactory ecological compatibility.
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Affiliation(s)
- Tingmin Pan
- College of Plant Protection, Northwest A&F University, Yangling, Xianyang 712100, Shaanxi, People's Republic of China
| | - Jiuhui Ye
- College of Plant Protection, Northwest A&F University, Yangling, Xianyang 712100, Shaanxi, People's Republic of China
| | - Jiening Li
- College of Plant Protection, Northwest A&F University, Yangling, Xianyang 712100, Shaanxi, People's Republic of China
| | - Kuo Gui
- College of Plant Protection, Northwest A&F University, Yangling, Xianyang 712100, Shaanxi, People's Republic of China
| | - Jian Li
- College of Forestry, Northwest A&F University, Yangling, Xianyang 712100, Shaanxi, People's Republic of China
| | - Juntao Feng
- College of Plant Protection, Northwest A&F University, Yangling, Xianyang 712100, Shaanxi, People's Republic of China
| | - Zhiqing Ma
- College of Plant Protection, Northwest A&F University, Yangling, Xianyang 712100, Shaanxi, People's Republic of China
| | - Peng Lei
- College of Plant Protection, Northwest A&F University, Yangling, Xianyang 712100, Shaanxi, People's Republic of China
| | - Yanqing Gao
- College of Plant Protection, Northwest A&F University, Yangling, Xianyang 712100, Shaanxi, People's Republic of China
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Zhang C, Yang J, Zhao C, Li L, Wu Z. Potential Fungicide Candidates: A Dual Action Mode Study of Novel Pyrazole-4-carboxamides against Gibberella zeae. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023; 71:1862-1872. [PMID: 36669159 DOI: 10.1021/acs.jafc.2c06962] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Pyrazole carboxamides are a class of traditional succinate dehydrogenase inhibitors (SDHIs) that have developed into a variety of commercialized fungicides. In the present work, a series of novel 1,5-disubstituted-1H-pyrazole-4-carboxamide derivatives were designed and synthesized based on the active backbone of 5-trifluoromethyl-1H-4-pyrazole carboxamide. Bioassay results indicated that some target compounds exhibited excellent in vitro antifungal activities against six phytopathogenic fungi. Notably, the EC50 values of Y47 against Gibberella zeae, Nigrospora oryzae, Thanatephorus cucumeris, and Verticillium dahliae were 5.2, 9.2, 12.8, and 17.6 mg/L, respectively. The in vivo protective and curative activities of Y47 at 100 mg/L against G. zeae on maize were 50.7 and 44.2%, respectively. Three-dimensional quantitative structure-activity relationship (3D-QSAR) analysis revealed that the large steric hindrance and electronegative groups on the 5-position of the pyrazole ring were important for the activity. The IC50 value of Y47 against succinate dehydrogenase (SDH) was 7.7 mg/L, superior to fluopyram (24.7 mg/L), which was consistent with the docking results. Morphological studies with fluorescence microscopy (FM) and scanning electron microscopy (SEM) found that Y47 could affect the membrane integrity of mycelium by inducing endogenous reactive oxygen species (ROS) production and causing peroxidation of cellular lipids, which was further verified by the malondialdehyde (MDA) content. Antifungal mechanism analysis demonstrated that the target compound Y47 not only had significant SDH inhibition activity but could also affect the membrane integrity of mycelium, exhibiting obvious dual action modes. This research provides a novel approach to the development of traditional SDHIs and their derivatives.
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Affiliation(s)
- Chengzhi Zhang
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Jingxin Yang
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Cailong Zhao
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Longju Li
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Zhibing Wu
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
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40
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Yang J, Guo Q, Wang L, Yu S. POU Domain Class 2 Transcription Factor 2 Inhibits Ferroptosis in Cerebral Ischemia Reperfusion Injury by Activating Sestrin2. Neurochem Res 2023; 48:658-670. [PMID: 36306010 DOI: 10.1007/s11064-022-03791-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Revised: 05/12/2022] [Accepted: 10/12/2022] [Indexed: 02/07/2023]
Abstract
Cerebral ischemia reperfusion injury (CIRI) is the commonest cause of brain dysfunction. Up-regulation of POU domain class 2 transcription factor 2 (POU2F2) has been reported in patients with cerebral ischemia, while the role of POU2F2 in CIRI remains elusive. Middle cerebral artery occlusion/reperfusion (MCAO/R) in mice and oxygen and glucose deprivation/reperfusion (OGD/R) in mouse primary cortical neurons were used as models of CIRI injury in vivo and in vitro. Lentivirus-mediated POU2F2 knockdown further impaired CIRI induced by MCAO/R in mice, which was accompanied by increased-neurological deficits, cerebral infarct volume and neuronal loss. Our evidence suggested that POU2F2 deficiency deteriorated oxidative stress and ferroptosis according to the phenomenon such as the abatement of SOD, GSH, glutathione peroxidase 4 (GPX4) activity and accumulation of ROS, lipid ROS, 4-hydroxynonenal (4-HNE) and MDA. In vivo, primary cortical neurons with POU2F2 knockdown also showed worse neuronal damage, oxidative stress and ferroptosis. Sestrin2 (Sesn2) was reported as a neuroprotection gene and involved in ferroptosis mechanism. Up-regulation of Sesn2 was observed in the ischemic penumbra and OGD/R-induced neuronal cells. Further, we proved that POU2F2, as a transcription factor, could bind to Sesn2 promoter and positively regulate its expression. Sesn2 overexpression relieved oxidative stress and ferroptosis induced by POU2F2 knockdown in OGD/R-treated neurons. This research demonstrated that CIRI induced a compensatory increase of POU2F2 and Sesn2. Down-regulated POU2F2 exacerbated CIRI through the acceleration of oxidative stress and ferroptosis possibly by decreasing Sesn2 expression, which offers new sights into therapeutic mechanisms for CIRI.
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Affiliation(s)
- Jinghui Yang
- Department of Hepatobiliary and Pancreatic Surgery, China-Japan Union Hospital of Jilin University, Changchun, Jilin Province, China
| | - Qian Guo
- Department of Neurology, China-Japan Union Hospital of Jilin University, No. 126, Xiantai Street, Changchun, Jilin Province, China
| | - Lu Wang
- Department of Neurology, China-Japan Union Hospital of Jilin University, No. 126, Xiantai Street, Changchun, Jilin Province, China
| | - Shan Yu
- Department of Neurology, China-Japan Union Hospital of Jilin University, No. 126, Xiantai Street, Changchun, Jilin Province, China.
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41
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Tang L, Fu C, Zhang A, Li X, Cao Y, Feng J, Liu H, Dong H, Wang W. Harnessing nanobiotechnology for cerebral ischemic stroke management. Biomater Sci 2023; 11:791-812. [PMID: 36545758 DOI: 10.1039/d2bm01790c] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Cerebral ischemic stroke remains one of the most serious neurological disorders that pose threats to human health, causing a large amount of long-term disability or even death throughout the world. Based on its physiologic and pathological features, there are limited available therapeutic options for effective ischemic stroke management. Encouragingly, a rapid advancement of nanobiotechnology is bringing new insights into exploring more alternative strategies against cerebral ischemic stroke, which can cleverly overcome the limitations related to conventional treatment methods. Therefore, this review focuses on the recent achievements of nanobiotechnology for ischemic stroke management, which emphasizes diverse targeted delivery strategies using various nanoplatforms including liposomes, micelles, polymeric nanoparticles, nanogels, inorganic nanomaterials, and cell-derived nano-vectors based on the pathophysiological features of ischemic stroke. Moreover, different therapeutic approaches against ischemic stroke such as neuroprotection, anti-inflammation, thrombolysis, increased blood-brain barrier penetration and reactive oxygen species scavenging are highlighted. Meanwhile, this review discusses how these versatile nanoplatforms were designed to assist in the treatment of ischemic stroke. Based on this, challenges, opportunities, and future perspectives using nanobiotechnology through rational design for effective ischemic stroke management are revealed.
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Affiliation(s)
- Lu Tang
- State Key Laboratory of Natural Medicines, Department of Pharmaceutics, School of Pharmacy, China Pharmaceutical University, Nanjing 210009, Jiangsu, P.R. China. .,NMPA Key Laboratory for Research and Evaluation of Pharmaceutical Preparations and Excipients, China Pharmaceutical University, Nanjing 210009, Jiangsu, P.R. China.
| | - Cong Fu
- State Key Laboratory of Natural Medicines, Department of Pharmaceutics, School of Pharmacy, China Pharmaceutical University, Nanjing 210009, Jiangsu, P.R. China. .,NMPA Key Laboratory for Research and Evaluation of Pharmaceutical Preparations and Excipients, China Pharmaceutical University, Nanjing 210009, Jiangsu, P.R. China.
| | - Aining Zhang
- State Key Laboratory of Natural Medicines, Department of Pharmaceutics, School of Pharmacy, China Pharmaceutical University, Nanjing 210009, Jiangsu, P.R. China. .,NMPA Key Laboratory for Research and Evaluation of Pharmaceutical Preparations and Excipients, China Pharmaceutical University, Nanjing 210009, Jiangsu, P.R. China.
| | - Xiyue Li
- State Key Laboratory of Natural Medicines, Department of Pharmaceutics, School of Pharmacy, China Pharmaceutical University, Nanjing 210009, Jiangsu, P.R. China. .,NMPA Key Laboratory for Research and Evaluation of Pharmaceutical Preparations and Excipients, China Pharmaceutical University, Nanjing 210009, Jiangsu, P.R. China.
| | - Yuqi Cao
- State Key Laboratory of Natural Medicines, Department of Pharmaceutics, School of Pharmacy, China Pharmaceutical University, Nanjing 210009, Jiangsu, P.R. China. .,NMPA Key Laboratory for Research and Evaluation of Pharmaceutical Preparations and Excipients, China Pharmaceutical University, Nanjing 210009, Jiangsu, P.R. China.
| | - Jingwen Feng
- State Key Laboratory of Natural Medicines, Department of Pharmaceutics, School of Pharmacy, China Pharmaceutical University, Nanjing 210009, Jiangsu, P.R. China. .,NMPA Key Laboratory for Research and Evaluation of Pharmaceutical Preparations and Excipients, China Pharmaceutical University, Nanjing 210009, Jiangsu, P.R. China.
| | - Hening Liu
- State Key Laboratory of Natural Medicines, Department of Pharmaceutics, School of Pharmacy, China Pharmaceutical University, Nanjing 210009, Jiangsu, P.R. China. .,NMPA Key Laboratory for Research and Evaluation of Pharmaceutical Preparations and Excipients, China Pharmaceutical University, Nanjing 210009, Jiangsu, P.R. China.
| | - Haijuan Dong
- The Public Laboratory Platform, China Pharmaceutical University, 210009 Nanjing, China
| | - Wei Wang
- State Key Laboratory of Natural Medicines, Department of Pharmaceutics, School of Pharmacy, China Pharmaceutical University, Nanjing 210009, Jiangsu, P.R. China. .,NMPA Key Laboratory for Research and Evaluation of Pharmaceutical Preparations and Excipients, China Pharmaceutical University, Nanjing 210009, Jiangsu, P.R. China.
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42
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Olivas-Aguirre M, Pérez-Chávez J, Torres-López L, Hernández-Cruz A, Pottosin I, Dobrovinskaya O. Dexamethasone-Induced Fatty Acid Oxidation and Autophagy/Mitophagy Are Essential for T-ALL Glucocorticoid Resistance. Cancers (Basel) 2023; 15:cancers15020445. [PMID: 36672393 PMCID: PMC9856638 DOI: 10.3390/cancers15020445] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Revised: 01/02/2023] [Accepted: 01/06/2023] [Indexed: 01/12/2023] Open
Abstract
ALL is a highly aggressive subtype of leukemia that affects children and adults. Glucocorticoids (GCs) are a critical component of the chemotherapeutic strategy against T-ALL. Cases of resistance to GC therapy and recurrent disease require novel strategies to overcome them. The present study analyzed the effects of Dex, one of the main GCs used in ALL treatment, on two T-ALL cell lines: resistant Jurkat and unselected CCRF-CEM, representing a mixture of sensitive and resistant clones. In addition to nuclear targeting, we observed a massive accumulation of Dex in mitochondria. Dex-treated leukemic cells suffered metabolic reprogramming from glycolysis and glutaminolysis towards lipolysis and increased FAO, along with increased membrane polarization and ROS production. Dex provoked mitochondrial fragmentation and induced autophagy/mitophagy. Mitophagy preceded cell death in susceptible populations of CCRF-CEM cells while serving as a pro-survival mechanism in resistant Jurkat. Accordingly, preventing FAO or autophagy greatly increased the Dex cytotoxicity and overcame GC resistance. Dex acted synergistically with mitochondria-targeted drugs, curcumin, and cannabidiol. Collectively, our data suggest that GCs treatment should not be neglected even in apparently GC-resistant clinical cases. Co-administration of drugs targeting mitochondria, FAO, or autophagy can help to overcome GC resistance.
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Affiliation(s)
- Miguel Olivas-Aguirre
- Laboratory of Immunology and Ionic Transport Regulation, Biomedical Research Centre, University of Colima, Av. 25 de Julio #965, Villas de San Sebastián, Colima 28045, Mexico
| | - Jesús Pérez-Chávez
- Medicine Faculty, University of Colima, Av. Universidad #333, Las Víboras, Colima 28040, Mexico
| | - Liliana Torres-López
- Laboratory of Immunology and Ionic Transport Regulation, Biomedical Research Centre, University of Colima, Av. 25 de Julio #965, Villas de San Sebastián, Colima 28045, Mexico
| | - Arturo Hernández-Cruz
- Department of Cognitive Neuroscience and National Laboratory of Channelopathies (LaNCa), Institute of Cellular Physiology, National Autonomous University of Mexico, Mexico 04510, Mexico
| | - Igor Pottosin
- Laboratory of Immunology and Ionic Transport Regulation, Biomedical Research Centre, University of Colima, Av. 25 de Julio #965, Villas de San Sebastián, Colima 28045, Mexico
- Correspondence: (I.P.); (O.D.); Tel.: +52-312-316-1000 (I.P. & O.D.)
| | - Oxana Dobrovinskaya
- Laboratory of Immunology and Ionic Transport Regulation, Biomedical Research Centre, University of Colima, Av. 25 de Julio #965, Villas de San Sebastián, Colima 28045, Mexico
- Correspondence: (I.P.); (O.D.); Tel.: +52-312-316-1000 (I.P. & O.D.)
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43
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Tourmente M, Sansegundo E, Rial E, Roldan ERS. Bioenergetic changes in response to sperm capacitation and two-way metabolic compensation in a new murine model. Cell Mol Life Sci 2023; 80:11. [PMID: 36534181 PMCID: PMC9763147 DOI: 10.1007/s00018-022-04652-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Revised: 09/29/2022] [Accepted: 11/24/2022] [Indexed: 12/23/2022]
Abstract
The acquisition of fertilizing ability by mammalian spermatozoa, known as "capacitation," includes processes that depend on particular metabolic pathways. This has led to the hypothesis that ATP demands might differ between capacitated and non-capacitated cells. Mouse sperm can produce ATP via OXPHOS and aerobic glycolysis, an advantageous characteristic considering that these cells have to function in the complex and variable environment of the female reproductive tract. Nonetheless, despite evidence showing that both metabolic pathways play a role in events associated with mouse sperm capacitation, there is contradictory evidence regarding changes promoted by capacitation in this species. In addition, the vast majority of studies regarding murine sperm metabolism use Mus musculus laboratory strains as model, thus neglecting the wide diversity of sperm traits of other species of Mus. Focus on closely related species with distinct evolutionary histories, which may be the result of different selective pressures, could shed light on diversity of metabolic processes. Here, we analyzed variations in sperm bioenergetics associated with capacitation in spermatozoa of the steppe mouse, Mus spicilegus, a species with high sperm performance. Furthermore, we compared sperm metabolic traits of this species with similar traits previously characterized in M. musculus. We found that the metabolism of M. spicilegus sperm responded to capacitation in a manner similar to that of M. musculus sperm. However, M. spicilegus sperm showed distinct metabolic features, including the ability to perform cross-pathway metabolic compensation in response to either respiratory or glycolytic inhibition, thus revealing a delicate fine-tuning of its metabolic capacities.
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Affiliation(s)
- Maximiliano Tourmente
- Department of Biodiversity and Evolutionary Biology, Museo Nacional de Ciencias Naturales, CSIC, Madrid, Spain.
- Centro de Biología Celular y Molecular, Facultad de Ciencias Exactas, Físicas y Naturales (FCEFyN - UNC), Universidad Nacional de Córdoba, Córdoba, Argentina.
- Instituto de Investigaciones Biológicas y Tecnológicas, Consejo Nacional de Investigaciones Científicas y Técnicas (IIByT - CONICET, UNC), Córdoba, Argentina.
| | - Ester Sansegundo
- Department of Biodiversity and Evolutionary Biology, Museo Nacional de Ciencias Naturales, CSIC, Madrid, Spain
| | - Eduardo Rial
- Department of Structural and Chemical Biology, Centro de Investigaciones Biológicas Margarita Salas, CSIC, Madrid, Spain
| | - Eduardo R S Roldan
- Department of Biodiversity and Evolutionary Biology, Museo Nacional de Ciencias Naturales, CSIC, Madrid, Spain.
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Jia J, Deng J, Jin H, Yang J, Nan D, Yu Z, Yu W, Shen Z, Lu Y, Liu R, Wang Z, Qu X, Qiu D, Yang Z, Huang Y. Effect of Dl-3-n-butylphthalide on mitochondrial Cox7c in models of cerebral ischemia/reperfusion injury. Front Pharmacol 2023; 14:1084564. [PMID: 36909178 PMCID: PMC9992206 DOI: 10.3389/fphar.2023.1084564] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2022] [Accepted: 02/07/2023] [Indexed: 02/24/2023] Open
Abstract
Several studies have demonstrated the protective effect of dl-3-n-Butylphthalide (NBP) against cerebral ischemia, which may be related to the attenuation of mitochondrial dysfunction. However, the specific mechanism and targets of NBP in cerebral ischemia/reperfusion remains unclear. In this study, we used a chemical proteomics approach to search for targets of NBP and identified cytochrome C oxidase 7c (Cox7c) as a key interacting target of NBP. Our findings indicated that NBP inhibits mitochondrial apoptosis and reactive oxygen species (ROS) release and increases ATP production through upregulation of Cox7c. Subsequently, mitochondrial respiratory capacity was improved and the HIF-1α/VEGF pathway was upregulated, which contributed to the maintenance of mitochondrial membrane potential and blood brain barrier integrity and promoting angiogenesis. Therefore, our findings provided a novel insight into the mechanisms underlying the neuroprotective effects of NBP, and also proposed for the first time that Cox7c exerts a critical role by protecting mitochondrial function.
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Affiliation(s)
- Jingjing Jia
- Department of Neurology, Peking University First Hospital, Beijing, China.,National Center for Children's Health, Department of Neurology, Beijing Children's Hospital, Capital Medical University, Beijing, China
| | - Jianwen Deng
- Department of Neurology, Peking University First Hospital, Beijing, China
| | - Haiqiang Jin
- Department of Neurology, Peking University First Hospital, Beijing, China
| | - Jie Yang
- Leewe Biopharmaceutical Co., Ltd, Xianlin University, Nanjing, China
| | - Ding Nan
- Department of Neurology, Peking University First Hospital, Beijing, China.,Department of Hyperbaric Oxygen, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China
| | - Zemou Yu
- Department of Neurology, Peking University First Hospital, Beijing, China.,National Center for Children's Health, Department of Neurology, Beijing Children's Hospital, Capital Medical University, Beijing, China
| | - Weiwei Yu
- Department of Neurology, Peking University First Hospital, Beijing, China.,Department of Neurology, Peking University Shenzhen Hospital, Shenzhen, Guangdong, China
| | - Zhiyuan Shen
- Department of Neurology, Peking University First Hospital, Beijing, China
| | - Yuxuan Lu
- Department of Neurology, Peking University First Hospital, Beijing, China
| | - Ran Liu
- Department of Neurology, Peking University First Hospital, Beijing, China
| | - Zhaoxia Wang
- Department of Neurology, Peking University First Hospital, Beijing, China
| | - Xiaozhong Qu
- Center of Materials Science and Optoelectronics Engineering, College of Materials Science and Opto-Electronic Technology, University of Chinese Academy of Sciences, Beijing, China
| | - Dong Qiu
- Beijing National Laboratory for Molecular Sciences (BNLMS), Laboratory of Polymer Physics and Chemistry, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing, China
| | - Zhenzhong Yang
- Institute of Polymer Science and Engineering, Department of Chemical Engineering, Tsinghua University, Beijing, China
| | - Yining Huang
- Department of Neurology, Peking University First Hospital, Beijing, China
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45
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Steliga A, Lietzau G, Wójcik S, Kowiański P. Transient cerebral ischemia induces the neuroglial proliferative activity and the potential to redirect neuroglial differentiation. J Chem Neuroanat 2023; 127:102192. [PMID: 36403746 DOI: 10.1016/j.jchemneu.2022.102192] [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: 05/06/2022] [Revised: 10/31/2022] [Accepted: 11/15/2022] [Indexed: 11/18/2022]
Abstract
Brain injury triggers a complex response involving morphological changes, cellular proliferation, and differentiation of newly formed neuroglial subpopulations. These processes have been extensively studied in animal stroke models with permanent large vessel occlusion. However, less is known about neuroglial response after transient cerebral ischemia. Herein, we aimed to determine an astrocytic and NG2 glial proliferative response, potential changes in expression of developmental neuroglial markers: vimentin, nestin, oligodendrocyte transcription marker (Olig2), and a role of neuroglial subpopulations as a source of cells replenishing structural deficiencies in the ischemic brain. Results showed an induction of a proliferative neuroglial response in the peri-infarct area reflected in an increased percentage of GFAP/Ki67 + and NG2/Ki67 + cells within 4 weeks after transient MCAO. The peak of GFAP+ astrocytes proliferation of 30.3 ± 10.3% was observed in the first week, and a peak of NG2 + cells proliferation of 23.1 ± 11.8% in the second week after stroke. The presence of GFAP/Vimentin+ and GFAP/Nestin+ cells, as well as GFAP/Olig2 + and NG2/Olig2 + cells indicated an induction of developmental phenotypes with a differentiation potential. Finally, observed between day 1 and week 3 transient GFAP/NG2 + colocalization suggests the heterogeneous source of the reactive neuroglia after transient MCAO. Altogether, one-hour MCAO is a sufficient pathological stimulus to trigger a strong proliferative response of GFAP+ and NG2 + neuroglial cells and induce their early developmental phenotype. Our results suggest that transient ischemia may initiate a change in the direction of differentiation within the neuroglia cell population.
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Affiliation(s)
- Aleksandra Steliga
- Institute of Health Sciences, Pomeranian University in Słupsk, Bohaterów Westerplatte 64, 76-200 Słupsk, Poland
| | - Grazyna Lietzau
- Division of Anatomy and Neurobiology, Faculty of Medicine, Medical University of Gdańsk, Dębinki 1, 80-211 Gdańsk, Poland.
| | - Sławomir Wójcik
- Division of Anatomy and Neurobiology, Faculty of Medicine, Medical University of Gdańsk, Dębinki 1, 80-211 Gdańsk, Poland
| | - Przemysław Kowiański
- Institute of Health Sciences, Pomeranian University in Słupsk, Bohaterów Westerplatte 64, 76-200 Słupsk, Poland; Division of Anatomy and Neurobiology, Faculty of Medicine, Medical University of Gdańsk, Dębinki 1, 80-211 Gdańsk, Poland.
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PINK1-mediated mitophagy contributes to glucocorticoid-induced cathepsin K production in osteocytes. J Orthop Translat 2023; 38:229-240. [DOI: 10.1016/j.jot.2022.11.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/26/2022] [Revised: 10/31/2022] [Accepted: 11/07/2022] [Indexed: 11/27/2022] Open
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47
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Okazaki K, Nakamura S, Koyano K, Konishi Y, Kondo M, Kusaka T. Neonatal asphyxia as an inflammatory disease: Reactive oxygen species and cytokines. Front Pediatr 2023; 11:1070743. [PMID: 36776908 PMCID: PMC9911547 DOI: 10.3389/fped.2023.1070743] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/15/2022] [Accepted: 01/10/2023] [Indexed: 01/28/2023] Open
Abstract
Neonatologists resuscitate asphyxiated neonates by every available means, including positive ventilation, oxygen therapy, and drugs. Asphyxiated neonates sometimes present symptoms that mimic those of inflammation, such as fever and edema. The main pathophysiology of the asphyxia is inflammation caused by hypoxic-ischemic reperfusion. At birth or in the perinatal period, neonates may suffer several, hypoxic insults, which can activate inflammatory cells and inflammatory mediator production leading to the release of larger quantities of reactive oxygen species (ROS). This in turn triggers the production of oxygen stress-induced high mobility group box-1 (HMGB-1), an endogenous damage-associated molecular patterns (DAMPs) protein bound to toll-like receptor (TLR) -4, which activates nuclear factor-kappa B (NF-κB), resulting in the production of excess inflammatory mediators. ROS and inflammatory mediators are produced not only in activated inflammatory cells but also in non-immune cells, such as endothelial cells. Hypothermia inhibits pro-inflammatory mediators. A combination therapy of hypothermia and medications, such as erythropoietin and melatonin, is attracting attention now. These medications have both anti-oxidant and anti-inflammatory effects. As the inflammatory response and oxidative stress play a critical role in the pathophysiology of neonatal asphyxia, these drugs may contribute to improving patient outcomes.
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Affiliation(s)
- Kaoru Okazaki
- Department of Neonatology, Tokyo Metropolitan Children's Medical Center, Tokyo, Japan
| | - Shinji Nakamura
- Department of Pediatrics, Faculty of Medicine, Kagawa University, Kagawa, Japan
| | - Kosuke Koyano
- Maternal Perinatal Center, Faculty of Medicine, Kagawa University, Kagawa, Japan
| | - Yukihiko Konishi
- Department of Pediatrics, Faculty of Medicine, Kagawa University, Kagawa, Japan
| | - Masatoshi Kondo
- Department of Neonatology, Tokyo Metropolitan Children's Medical Center, Tokyo, Japan
| | - Takashi Kusaka
- Department of Pediatrics, Faculty of Medicine, Kagawa University, Kagawa, Japan
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Wang Y, Wang Y, Yue G, Zhao Y. Energy metabolism disturbance in migraine: From a mitochondrial point of view. Front Physiol 2023; 14:1133528. [PMID: 37123270 PMCID: PMC10133718 DOI: 10.3389/fphys.2023.1133528] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2023] [Accepted: 03/20/2023] [Indexed: 05/02/2023] Open
Abstract
Migraine is a serious central nervous system disease with a high incidence rate. Its pathogenesis is very complex, which brings great difficulties for clinical treatment. Recently, many studies have revealed that mitochondrial dysfunction may play a key role in migraine, which affects the hyperosmotic of Ca2+, the excessive production of free radicals, the decrease of mitochondrial membrane potential, the imbalance of mPTP opening and closing, and the decrease of oxidative phosphorylation level, which leads to neuronal energy exhaustion and apoptosis, and finally lessens the pain threshold and migraine attack. This article mainly introduces cortical spreading depression, a pathogenesis of migraine, and then damages the related function of mitochondria, which leads to migraine. Oxidative phosphorylation and the tricarboxylic acid cycle are the main ways to provide energy for the body. 95 percent of the energy needed for cell survival is provided by the mitochondrial respiratory chain. At the same time, hypoxia can lead to cell death and migraine. The pathological opening of the mitochondrial permeability transition pore can promote the interaction between pro-apoptotic protein and mitochondrial, destroy the structure of mPTP, and further lead to cell death. The increase of mPTP permeability can promote the accumulation of reactive oxygen species, which leads to a series of changes in the expression of proteins related to energy metabolism. Both Nitric oxide and Calcitonin gene-related peptide are closely related to the attack of migraine. Recent studies have shown that changes in their contents can also affect the energy metabolism of the body, so this paper reviews the above mechanisms and discusses the mechanism of brain energy metabolism of migraine, to provide new strategies for the prevention and treatment of migraine and promote the development of individualized and accurate treatment of migraine.
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Affiliation(s)
- Yicheng Wang
- Department of Neurology, The Third Affiliated Hospital of Beijing University of Chinese Medicine, Beijing, China
| | - Yongli Wang
- Department of Neurology, Xiamen Hospital of Traditional Chinese Medicine, Xiamen, China
| | - Guangxin Yue
- Institute of Basic Theory for Chinese Medicine, Chinese Academy of Chinese Medical Sciences, Beijing, China
| | - Yonglie Zhao
- Department of Neurology, The Third Affiliated Hospital of Beijing University of Chinese Medicine, Beijing, China
- *Correspondence: Yonglie Zhao,
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Therapeutic Administration of Oxcarbazepine Saves Cerebellar Purkinje Cells from Ischemia and Reperfusion Injury Induced by Cardiac Arrest through Attenuation of Oxidative Stress. Antioxidants (Basel) 2022; 11:antiox11122450. [PMID: 36552657 PMCID: PMC9774942 DOI: 10.3390/antiox11122450] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Revised: 12/06/2022] [Accepted: 12/09/2022] [Indexed: 12/14/2022] Open
Abstract
Research reports using animal models of ischemic insults have demonstrated that oxcarbazepine (a carbamazepine analog: one of the anticonvulsant compounds) extends neuroprotective effects against cerebral or forebrain injury induced by ischemia and reperfusion. However, research on protective effects against ischemia and reperfusion cerebellar injury induced by cardiac arrest (CA) and the return of spontaneous circulation has been poor. Rats were assigned to four groups as follows: (Groups 1 and 2) sham asphyxial CA and vehicle- or oxcarbazepine-treated, and (Groups 3 and 4) CA and vehicle- or oxcarbazepine-treated. Vehicle (0.3% dimethyl sulfoxide/saline) or oxcarbazepine (200 mg/kg) was administered intravenously ten minutes after the return of spontaneous circulation. In this study, CA was induced by asphyxia using vecuronium bromide (2 mg/kg). We conducted immunohistochemistry for calbindin D-28kDa and Fluoro-Jade B histofluorescence to examine Purkinje cell death induced by CA. In addition, immunohistochemistry for 4-hydroxy-2-nonenal (4HNE) was carried out to investigate CA-induced oxidative stress, and immunohistochemistry for Cu, Zn-superoxide dismutase (SOD1) and Mn-superoxide dismutase (SOD2) was performed to examine changes in endogenous antioxidant enzymes. Oxcarbazepine treatment after CA significantly increased the survival rate and improved neurological deficit when compared with vehicle-treated rats with CA (survival rates ≥ 63.6 versus 6.5%), showing that oxcarbazepine treatment dramatically protected cerebellar Purkinje cells from ischemia and reperfusion injury induced by CA. The salvation of the Purkinje cells from ischemic injury by oxcarbazepine treatment paralleled a dramatic reduction in 4HNE (an end-product of lipid peroxidation) and increased or maintained the endogenous antioxidant enzymes (SOD1 and SOD2). In brief, this study shows that therapeutic treatment with oxcarbazepine after CA apparently saved cerebellar neurons (Purkinje cells) from CA-induced neuronal death by attenuating oxidative stress and suggests that oxcarbazepine can be utilized as a therapeutic medicine for ischemia and reperfusion brain (cerebellar) injury induced by CA.
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Nrf2 Regulates Oxidative Stress and Its Role in Cerebral Ischemic Stroke. Antioxidants (Basel) 2022; 11:antiox11122377. [PMID: 36552584 PMCID: PMC9774301 DOI: 10.3390/antiox11122377] [Citation(s) in RCA: 46] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Revised: 11/23/2022] [Accepted: 11/27/2022] [Indexed: 12/05/2022] Open
Abstract
Cerebral ischemic stroke is characterized by acute ischemia in a certain part of the brain, which leads to brain cells necrosis, apoptosis, ferroptosis, pyroptosis, etc. At present, there are limited effective clinical treatments for cerebral ischemic stroke, and the recovery of cerebral blood circulation will lead to cerebral ischemia-reperfusion injury (CIRI). Cerebral ischemic stroke involves many pathological processes such as oxidative stress, inflammation, and mitochondrial dysfunction. Nuclear factor erythroid 2-related factor 2 (Nrf2), as one of the most critical antioxidant transcription factors in cells, can coordinate various cytoprotective factors to inhibit oxidative stress. Targeting Nrf2 is considered as a potential strategy to prevent and treat cerebral ischemia injury. During cerebral ischemia, Nrf2 participates in signaling pathways such as Keap1, PI3K/AKT, MAPK, NF-κB, and HO-1, and then alleviates cerebral ischemia injury or CIRI by inhibiting oxidative stress, anti-inflammation, maintaining mitochondrial homeostasis, protecting the blood-brain barrier, and inhibiting ferroptosis. In this review, we have discussed the structure of Nrf2, the mechanisms of Nrf2 in cerebral ischemic stroke, the related research on the treatment of cerebral ischemia through the Nrf2 signaling pathway in recent years, and expounded the important role and future potential of the Nrf2 pathway in cerebral ischemic stroke.
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