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Li D, Li Y, Pan W, Yang B, Fu C. Role of dynamin-related protein 1-dependent mitochondrial fission in drug-induced toxicity. Pharmacol Res 2024; 206:107250. [PMID: 38878917 DOI: 10.1016/j.phrs.2024.107250] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/21/2024] [Revised: 05/31/2024] [Accepted: 06/04/2024] [Indexed: 07/24/2024]
Abstract
Dynamin-related protein 1 (DRP1) is an essential controller of mitochondrial fission whose activity is tightly controlled to ensure balanced mitochondrial dynamics and maintain internal cellular homeostasis. Growing evidence suggests that DRP1-dependent mitochondrial fission plays a role in drug-induced toxicity (DIT). Therefore, understanding the molecular mechanisms underlying DIT and the precise regulation of DRP1 function will inform the development of potential therapeutic treatments for DIT. This review comprehensively summarizes the diverse DITs and their potential mechanism associated with DRP1-dependent mitochondrial fission and discusses in vivo and in vitro model studies of toxicity protection targeting DRP1.
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Affiliation(s)
- Dan Li
- The First Affiliated Hospital, Department of Pharmacy, Hengyang Medical School, University of South China, Hengyang, Hunan 421001, China; Institute of Pharmacy and Pharmacology, College of Basic Medical Science, Hengyang Medical School, University of South China, Hengyang, Hunan 421001, China
| | - Yueyan Li
- The First Affiliated Hospital, Department of Cardiology, Hengyang Medical School, University of South China, Hengyang, Hunan 421001, China
| | - Wei Pan
- The First Affiliated Hospital, Department of Pharmacy, Hengyang Medical School, University of South China, Hengyang, Hunan 421001, China; Institute of Pharmacy and Pharmacology, College of Basic Medical Science, Hengyang Medical School, University of South China, Hengyang, Hunan 421001, China
| | - Bo Yang
- The First Affiliated Hospital, Department of Pharmacy, Hengyang Medical School, University of South China, Hengyang, Hunan 421001, China; Institute of Pharmacy and Pharmacology, College of Basic Medical Science, Hengyang Medical School, University of South China, Hengyang, Hunan 421001, China.
| | - Chengxiao Fu
- The First Affiliated Hospital, Department of Pharmacy, Hengyang Medical School, University of South China, Hengyang, Hunan 421001, China; Institute of Pharmacy and Pharmacology, College of Basic Medical Science, Hengyang Medical School, University of South China, Hengyang, Hunan 421001, China; The First Affiliated Hospital, Hunan Provincial Clinical Medical Research Center for Drug Evaluation of Major Chronic Diseases,Hengyang Medical School, University of South China, Hengyang, Hunan 421001, China.
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2
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Wang Z, Zhu J, Zhang D, Lv J, Wu L, Liu Z. The significant mechanism and treatments of cell death in heatstroke. Apoptosis 2024; 29:967-980. [PMID: 38886312 DOI: 10.1007/s10495-024-01979-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/06/2024] [Indexed: 06/20/2024]
Abstract
With global warming, extreme environmental heat is becoming a social issue of concern, which can cause adverse health results including heatstroke (HS). Severe heat stress is characterized by cell death of direct heat damage, excessive inflammatory responses, and coagulation disorders that can lead to multiple organ dysfunction (MODS) and even death. However, the significant pathophysiological mechanism and treatment of HS are still not fully clear. Various modes of cell death, including apoptosis, pyroptosis, ferroptosis, necroptosis and PANoptosis are involved in MODS induced by heatstroke. In this review, we summarized molecular mechanism, key transcriptional regulation as for HSF1, NRF2, NF-κB and PARP-1, and potential therapies of cell death resulting in CNS, liver, intestine, reproductive system and kidney injury induced by heat stress. Understanding the mechanism of cell death provides new targets to protect multi-organ function in HS.
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Affiliation(s)
- Zixin Wang
- Department of Metabolic Surgery, Jinshazhou Hospital of Guangzhou University of Chinese Medicine, Guangzhou, 510010, China
| | - Jie Zhu
- Department of Pediatric, General Hospital of Southern Theater Command of PLA, Guangzhou, 510010, China
| | - Dingshun Zhang
- Department of Medicine Intensive Care Unit, General Hospital of Southern Theater Command of PLA, Guangzhou, 510010, China
| | - Jinke Lv
- Department of Thoracic Surgery, Foshan Clinical Medical School of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, China
| | - Liangping Wu
- Department of Metabolic Surgery, Jinshazhou Hospital of Guangzhou University of Chinese Medicine, Guangzhou, 510010, China.
| | - Zhifeng Liu
- Department of Medicine Intensive Care Unit, General Hospital of Southern Theater Command of PLA, Guangzhou, 510010, China.
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3
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Xu A, Huang F, Chen E, Zhang Z, He Y, Yu X, He G. Hyperbaric oxygen therapy attenuates heatstroke-induced hippocampal injury by inhibiting microglial pyroptosis. Int J Hyperthermia 2024; 41:2382162. [PMID: 39043380 DOI: 10.1080/02656736.2024.2382162] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2024] [Accepted: 07/15/2024] [Indexed: 07/25/2024] Open
Abstract
Background: Central nervous system (CNS) injury is the most prominent feature of heatstroke and the hippocampus is prone to damage. However, the mechanisms underlying the heatstroke-induced hippocampal injury remain unclear. Hyperbaric oxygen (HBO) therapy prevents CNS injury in heatstroke mice. However, the underlying mechanisms of HBO in heatstroke-induced hippocampal injury remain unclear. This study aimed to elucidate the protective effects of HBO against hippocampal injury and its potential role in microglial pyroptosis in heatstroke rats.Methods: A rat heatstroke model and a heat stress model with a mouse microglial cell line (BV2) were, respectively, used to illustrate the effect of HBO on heat-induced microglial pyroptosis in vivo and in vitro. We used a combination of molecular and histological methods to assess microglial pyroptosis and neuroinflammation both in vivo and in vitro.Results: The results revealed that HBO improved heatstroke-induced survival outcomes, hippocampal injury, and neurological dysfunction in rats. In addition, HBO mitigates microglial pyroptosis and reduces the expression of pro-inflammatory cytokines in the hippocampus of heatstroke rats. In vitro experiments showed that HBO attenuated BV2 cell injury under heat stress. Furthermore, HBO prevented heat-induced pyroptosis of BV2 cells, and the expression of pro-inflammatory cytokines IL-18 and IL-1β was reduced. Mechanistically, HBO alleviates heatstroke-induced neuroinflammation and hippocampal injury by preventing microglial pyroptosis. Conclusions: In conclusion, HBO attenuates heatstroke-induced neuroinflammation and hippocampal injury by inhibiting microglial pyroptosis.
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Affiliation(s)
- Ancong Xu
- Department of Intensive Care Unit, The Third Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Fan Huang
- Wenzhou Medical University, Wenzhou, China
| | - Er Chen
- Department of Intensive Care Unit, The Third Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | | | - Yanxuan He
- Wenzhou Medical University, Wenzhou, China
| | - Xichong Yu
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, China
| | - Guoxin He
- Department of Intensive Care Unit, The Third Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
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4
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Du G, Yang Z, Wen Y, Li X, Zhong W, Li Z, Zhang S, Luo E, Ding H, Li W. Heat stress induces IL-1β and IL-18 overproduction via ROS-activated NLRP3 inflammasome: implication in neuroinflammation in mice with heat stroke. Neuroreport 2024; 35:558-567. [PMID: 38687900 DOI: 10.1097/wnr.0000000000002042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/02/2024]
Abstract
Heat stroke induced cerebral damage via neuroinflammation. This study aimed to approach whether heat stress would promote NOD-like receptor protein 3 (NLRP3) inflammasome via reactive oxygen species (ROS). The mice were randomly divided into the sham group, the heat stress group, and the heat stress + TEMPOL (ROS scavenger) group. And the NLRP3 -/- mice were applied and divided into the NLRP3 -/- + sham group and the NLRP3 -/- + heat stress group. Furthermore, the BV2 cells were divided into four groups following the intervention measures: the heat stress + TEMPOL group, the heat stress + Z-VAD-FMK (caspase-1 inhibitor) group, the heat stress group, and the control group. ROS levels were examined. The expression levels of NLRP3, caspase-1, IL-1β, and IL-18 were detected by western blotting and double immunofluorescence. We found that heat stress attack induced excessive ROS in microglia and subsequently activated NLRP3 inflammasome in both mice and BV2 cells. When ROS scavenged, the expression level of NLRP3 was downregulated. Furthermore, with NLRP3 inflammasome activation, the expression levels of caspase-1, IL-1β, and IL-18 were increased. In NLRP3 -/- mice, however, the caspase-1, IL-1β, and IL-18 were significantly declined. Further experiments showed that pretreatment of caspase-1 inhibitor decreased the expression levels of IL-1β and IL-18. These results suggest that heat stress attack caused neuroinflammation via excessive ROS activating the NLRP3 inflammasome in microglia cells.
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Affiliation(s)
- Guoqiang Du
- Department of Emergency Medicine, Luoding People's Hospital, Yunfu
| | - Zixi Yang
- College of Continuing Education, Guangdong Medical University, Zhanjiang
| | - Yin Wen
- Department of Critical Care Medicine
| | - Xusheng Li
- Department of Emergency Medicine, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou
| | | | - Zhuo Li
- Department of Critical Care Medicine
| | | | - Ensi Luo
- Department of Endocrinology, Binhaiwan Central Hospital of Dongguan, Dongguan Hospital Affiliated to Medical College of Jinan University, Dongguan, China
| | - Hongguang Ding
- Department of Emergency Medicine, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou
| | - Weifeng Li
- Department of Emergency Medicine, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou
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5
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Zhang Y, Lin X, Ye C, Zhang P. Hyperbaric Oxygen Improves Long-Term Learning and Memory Impairment by Attenuating Neuronal Apoptosis in aMCI Rats. J Inflamm Res 2024; 17:3043-3055. [PMID: 38770175 PMCID: PMC11103017 DOI: 10.2147/jir.s455155] [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: 01/25/2024] [Accepted: 05/02/2024] [Indexed: 05/22/2024] Open
Abstract
Background With the aging of the population and the increasing incidence of neurological diseases, amnestic mild cognitive impairment (aMCI) has attracted attention. Hyperbaric oxygen (HBO) has gradually shown the potential in the treatment of aMCI as an emerging treatment method in recent times. This study is to observe the effect of HBO on the long-term learning memory of aMCI rats, and investigate the associated mechanisms. Methods Seventy-two male rats (4-month-old) were randomly divided into control (CON) group, aMCI group, HBO group, 24 rats in each group. Each group was randomly divided into CON1, CON7, CON28; aMCI1, aMCI7, aMCI28; HBO1, HBO7, HBO28, 8 rats in each group. The aMCI model rats were established in aMCI and HBO groups. HBO group was treated with HBO for 7 days. The ethological and cytopathology which include Morris water maze (MWM) test, HE staining, TUNEL staining and the expression of Fas/FasL on neuron membrane were conducted to evaluate the effects of HBO on day 1, day 7 and day 28 after HBO treatment. Results MWM test showed that the spatial learning and memory ability of the rats decreased in aMCI group, and recovered in HBO group; Compared with aMCI group, the pathological damage of hippocampal nerve cells was alleviated, the number of apoptotic cells was significantly reduced (P < 0.05), and the expression of Fas/FasL on the surface of nerve cell membrane was significantly weakened in HBO group (P < 0.05). There were no significant changes in the spatial learning and memory ability, pathological damage of hippocampal neurons, the number of apoptotic cells, and the changes of Fas/FasL on the surface of hippocampal neurons in HBO1, HBO7, and HBO28 groups (P > 0.05). However, in aMCI1, aMCI7, and aMCI28 groups gradually aggravated (P < 0.05). Conclusion 1. HBO can improve the long-term learning and memory impairment by attenuating neuronal apoptosis in aMCI rats. 2. Fas/FasL mediated cell receptor death pathway is involved in the apoptosis of hippocampal neurons.
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Affiliation(s)
- Yonggui Zhang
- Department of Anesthesiology, The Second Hospital of Longyan, Fujian, People’s Republic of China
| | - Xianzhong Lin
- Department of Anesthesiology, The First Affiliated Hospital of Fujian Medical University, Fuzhou, People’s Republic of China
| | - Chen Ye
- Department of Anesthesiology, The First Affiliated Hospital of Fujian Medical University, Fuzhou, People’s Republic of China
| | - Peiling Zhang
- Department of Anesthesiology, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, People’s Republic of China
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Xie J, Wang L, Xu Y, Ma Y, Zhang L, Yin W, Huang Y. Exertional heat stroke-induced changes in gut microbiota cause cognitive impairment in mice. BMC Microbiol 2024; 24:134. [PMID: 38654189 PMCID: PMC11040997 DOI: 10.1186/s12866-024-03276-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2024] [Accepted: 03/25/2024] [Indexed: 04/25/2024] Open
Abstract
BACKGROUND The incidence of exertional heat stroke (EHS) escalates during periods of elevated temperatures, potentially leading to persistent cognitive impairment postrecovery. Currently, effective prophylactic or therapeutic measures against EHS are nonexistent. METHODS The selection of days 14 and 23 postinduction for detailed examination was guided by TEM of neuronal cells and HE staining of intestinal villi and the hippocampal regions. Fecal specimens from the ileum and cecum at these designated times were analyzed for changes in gut microbiota and metabolic products. Bioinformatic analyses facilitated the identification of pivotal microbial species and metabolites. The influence of supplementing these identified microorganisms on behavioral outcomes and the expression of functional proteins within the hippocampus was subsequently assessed. RESULTS TEM analyses of neurons, coupled with HE staining of intestinal villi and the hippocampal region, indicated substantial recovery in intestinal morphology and neuronal injury on Day 14, indicating this time point for subsequent microbial and metabolomic analyses. Notably, a reduction in the Lactobacillaceae family, particularly Lactobacillus murinus, was observed. Functional annotation of 16S rDNA sequences suggested diminished lipid metabolism and glycan biosynthesis and metabolism in EHS models. Mice receiving this intervention (EHS + probiotics group) exhibited markedly reduced cognitive impairment and increased expression of BDNF/TrKB pathway molecules in the hippocampus during behavioral assessment on Day 28. CONCLUSION Probiotic supplementation, specifically with Lactobacillus spp., appears to mitigate EHS-induced cognitive impairment, potentially through the modulation of the BDNF/TrKB signaling pathway within the hippocampus, illustrating the therapeutic potential of targeting the gut-brain axis.
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Affiliation(s)
- Jiangang Xie
- Department of Interventional Vascular, Xi'an No.3 Hospital, the Affiliated Hospital of Northwest University, Xi'an, Shaanxi Province, 710018, China
| | - Linxiao Wang
- College of Life Sciences, Northwest University, Xi'an, 710127, China
| | - Yunyun Xu
- Department of Emergency, Xijing Hospital, Air Force Medical University, Xi'an, Shaanxi Province, 710000, China
| | - Yuexiang Ma
- Department of Emergency, Xijing Hospital, Air Force Medical University, Xi'an, Shaanxi Province, 710000, China
| | - Lingqin Zhang
- Department of Emergency, Xijing Hospital, Air Force Medical University, Xi'an, Shaanxi Province, 710000, China
| | - Wen Yin
- Department of Emergency, Xijing Hospital, Air Force Medical University, Xi'an, Shaanxi Province, 710000, China.
| | - Yang Huang
- Department of Emergency, Xijing Hospital, Air Force Medical University, Xi'an, Shaanxi Province, 710000, China.
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Fang W, Yin B, Fang Z, Tian M, Ke L, Ma X, Di Q. Heat stroke-induced cerebral cortex nerve injury by mitochondrial dysfunction: A comprehensive multi-omics profiling analysis. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 919:170869. [PMID: 38342446 DOI: 10.1016/j.scitotenv.2024.170869] [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: 10/26/2023] [Revised: 01/20/2024] [Accepted: 02/07/2024] [Indexed: 02/13/2024]
Abstract
In recent years, global warming has led to frequent instances of extremely high temperatures during summer, arousing significant concern about the adverse effects of high temperature. Among these, heat stroke is the most serious, which has detrimental effects on the all organs of human body, especially on brain. However, the comprehensive pathogenesis leading to brain damage remains unclear. In this study, we constructed a mouse model of heat stroke and conducted multi-omics profiling to identify relevant pathogenesis induced by heat stroke. The mice were placed in a constant temperature chamber at 42 °C with a humidity of 50 %, and the criteria for success in modeling were that the rectal temperature reached 42 °C and that the mice were trembling. Then the mice were immediately taken out for further experiments. Firstly, we conducted cFos protein localization and identified the cerebral cortex, especially the anterior cingulate cortex as the region exhibiting the most pronounced damage. Secondly, we performed metabolomics, transcriptomics, and proteomics analysis on cerebral cortex. This multi-omics investigation unveiled noteworthy alterations in proteins and metabolites within pathways associated with neurotransmitter systems, heatstroke-induced mitochondrial dysfunction, encompassing histidine and pentose phosphate metabolic pathways, as well as oxidative stress. In addition, the cerebral cortex exhibited pronounced Reactive Oxygen Species (ROS) production, alongside significant downregulation of the mitochondrial outer membrane protein Tomm40 and mitochondrial permeability transition pore, implicating cerebral cortex mitochondrial dysfunction as the primary instigator of neural impairment. This study marks a significant milestone as the first to employ multi-omics analysis in exploring the molecular mechanisms underlying heat stroke-induced damage in cerebral cortex neurons. It comprehensively identifies all potentially impacted pathways by heat stroke, laying a solid foundation for ensuing research endeavors. Consequently, this study introduces a fresh angle to clinical approaches in heatstroke prevention and treatment, as well as establishes an innovative groundwork for shaping future-forward environmental policies.
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Affiliation(s)
- Wen Fang
- Division of Sports Science& Physical Education, Tsinghua University, Beijing, China; Wellcome-MRC Cambridge Stem Cell Institute, Cambridge, UK; IDG/McGovern Institute for Brain Research, Tsinghua University, Beijing, China
| | - Bo Yin
- School of Medicine, Tsinghua University, Beijing, China
| | - Zijian Fang
- Wellcome-MRC Cambridge Stem Cell Institute, Cambridge, UK
| | - Mengyi Tian
- School of Medicine, Tsinghua University, Beijing, China; IDG/McGovern Institute for Brain Research, Tsinghua University, Beijing, China
| | - Limei Ke
- School of Medicine, Tsinghua University, Beijing, China
| | - Xindong Ma
- Division of Sports Science& Physical Education, Tsinghua University, Beijing, China; IDG/McGovern Institute for Brain Research, Tsinghua University, Beijing, China.
| | - Qian Di
- Vanke School of Public Health, Tsinghua University, Beijing, China; Institute for Healthy China, Tsinghua University, Beijing, China.
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Huan Y, Hao G, Shi Z, Liang Y, Dong Y, Quan H. The role of dynamin-related protein 1 in cerebral ischemia/hypoxia injury. Biomed Pharmacother 2023; 165:115247. [PMID: 37516018 DOI: 10.1016/j.biopha.2023.115247] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Revised: 07/18/2023] [Accepted: 07/25/2023] [Indexed: 07/31/2023] Open
Abstract
Mitochondrial dysfunction, especially in terms of mitochondrial dynamics, has been reported to be closely associated with neuronal outcomes and neurological impairment in cerebral ischemia/hypoxia injury. Dynamin-related protein 1 (Drp1) is a cytoplasmic GTPase that mediates mitochondrial fission and participates in neuronal cell death, calcium signaling, and oxidative stress. The neuroprotective role of Drp1 inhibition has been confirmed in several central nervous system disease models, demonstrating that targeting Drp1 may shed light on novel approaches for the treatment of cerebral ischemia/hypoxia injury. In this review, we aimed to highlight the roles of Drp1 in programmed cell death, oxidative stress, mitophagy, and mitochondrial function to provide a better understanding of mitochondrial disturbances in cerebral ischemia/hypoxia injury, and we also summarize the advances in novel chemical compounds targeting Drp1 to provide new insights into potential therapies for cerebral ischemia/hypoxia injury.
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Affiliation(s)
- Yu Huan
- Department of Neurosurgery, General Hospital of Northern Theater Command, Shenyang, China
| | - Guangzhi Hao
- Department of Neurosurgery, General Hospital of Northern Theater Command, Shenyang, China
| | - Zuolin Shi
- Department of Neurosurgery, General Hospital of Northern Theater Command, Shenyang, China
| | - Yong Liang
- Department of Neurosurgery, General Hospital of Northern Theater Command, Shenyang, China
| | - Yushu Dong
- Department of Neurosurgery, General Hospital of Northern Theater Command, Shenyang, China.
| | - Huilin Quan
- Department of Plastic Surgery, The First Hospital of China Medical University, Shenyang, China.
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Li F, Deng J, He Q, Zhong Y. ZBP1 and heatstroke. Front Immunol 2023; 14:1091766. [PMID: 36845119 PMCID: PMC9950778 DOI: 10.3389/fimmu.2023.1091766] [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: 11/09/2022] [Accepted: 01/19/2023] [Indexed: 02/12/2023] Open
Abstract
Heatstroke, which is associated with circulatory failure and multiple organ dysfunction, is a heat stress-induced life-threatening condition characterized by a raised core body temperature and central nervous system dysfunction. As global warming continues to worsen, heatstroke is expected to become the leading cause of death globally. Despite the severity of this condition, the detailed mechanisms that underlie the pathogenesis of heatstroke still remain largely unknown. Z-DNA-binding protein 1 (ZBP1), also referred to as DNA-dependent activator of IFN-regulatory factors (DAI) and DLM-1, was initially identified as a tumor-associated and interferon (IFN)-inducible protein, but has recently been reported to be a Z-nucleic acid sensor that regulates cell death and inflammation; however, its biological function is not yet fully understood. In the present study, a brief review of the main regulators is presented, in which the Z-nucleic acid sensor ZBP1 was identified to be a significant factor in regulating the pathological characteristics of heatstroke through ZBP1-dependent signaling. Thus, the lethal mechanism of heatstroke is revealed, in addition to a second function of ZBP1 other than as a nucleic acid sensor.
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Affiliation(s)
- Fanglin Li
- Critical Care Medicine, The Second Xiangya Hospital, Central South University, Changsha, China,Department of Critical Care Medicine and Hematology, The 3rd Xiangya Hospital, Central South University, Changsha, China
| | - Jiayi Deng
- Critical Care Medicine, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Qiuli He
- Department of Nephrology, The First Affiliated Hospital of Gannan Medical University, Ganzhou, China,*Correspondence: Qiuli He, ; Yanjun Zhong,
| | - Yanjun Zhong
- Critical Care Medicine, The Second Xiangya Hospital, Central South University, Changsha, China,*Correspondence: Qiuli He, ; Yanjun Zhong,
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He G, Xu A, Yu X, Huang F, Su L. Heat stroke alters hippocampal and cerebellar transmitter metabonomics. World J Emerg Med 2023; 14:287-293. [PMID: 37425089 PMCID: PMC10323506 DOI: 10.5847/wjem.j.1920-8642.2023.068] [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: 12/13/2022] [Accepted: 02/27/2023] [Indexed: 07/11/2023] Open
Abstract
BACKGROUND The mechanisms underlying heat stroke (HS)-induced hippocampal injury remain unclear. This study aimed to evaluate the HS-induced metabonomics of hippocampal and cerebellar transmitters. METHODS The HS model was established with male Sprague-Dawley rats subjected to heat exposure of up to 42 °C at a humidity of (55.0±5.0)%. The hippocampal and cerebellar transmitters and metabolites of rats were tested via ultra-high-performance liquid chromatography-mass spectrometry (UPLC-MS/MS). The primary transmitters and metabolites were identified by principal component analysis (PCA) and orthogonal partial least square-discriminant analysis (OPLS-DA). The major metabolic pathways for HS were selected after enrichment. The brain injury was evaluated by histological tests. RESULTS HS induced hippocampal and cerebellar injuries in rats. HS upregulated the protein levels of hippocampal glutamate, glutamine, gamma-aminobutyric acid, L-tryptophan (Trp), 5-hydroxy-indoleacetic acid, and kynurenine; however, it downregulated asparagine, tryptamine, 5-hydroxytryptophan, melatonin, 3,4-dihydroxyphenylalanine (L-DOPA), and vanillylmandelic acid. HS also sharply elevated the protein levels of cerebellar methionine and Trp, and decreased the levels of serotonin, L-alanine, L-asparagine, L-aspartate, cysteine, norepinephrine, spermine, spermidine, and tyrosine. Hippocampal glutamate, monoamine transmitters, cerebellar aspartate acid, and catecholamine transmitters' metabolic pathways were identified as the main metablic pathways in HS. CONCLUSION The hippocampus and cerebellum were injured in rats with HS, possibly induced the disorder of hippocampal glutamate and serotonin metabolism, cerebellar aspartate acid and catecholamine transmitter metabolism, and related metabolic pathways.
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Affiliation(s)
- Guoxin He
- The First School of Clinical Medicine, Southern Medical University, Guangzhou 510515, China
- Department of Critical Care Medicine, the Third Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China
| | - Ancong Xu
- Department of Critical Care Medicine, the Third Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China
| | - Xichong Yu
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou 325035, China
| | - Fan Huang
- Department of Critical Care Medicine, the Third Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China
| | - Lei Su
- The First School of Clinical Medicine, Southern Medical University, Guangzhou 510515, China
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11
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Qu K, Yan F, Qin X, Zhang K, He W, Dong M, Wu G. Mitochondrial dysfunction in vascular endothelial cells and its role in atherosclerosis. Front Physiol 2022; 13:1084604. [PMID: 36605901 PMCID: PMC9807884 DOI: 10.3389/fphys.2022.1084604] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2022] [Accepted: 12/09/2022] [Indexed: 12/24/2022] Open
Abstract
The mitochondria are essential organelles that generate large amounts of ATP via the electron transport chain (ECT). Mitochondrial dysfunction causes reactive oxygen species accumulation, energy stress, and cell death. Endothelial mitochondrial dysfunction is an important factor causing abnormal function of the endothelium, which plays a central role during atherosclerosis development. Atherosclerosis-related risk factors, including high glucose levels, hypertension, ischemia, hypoxia, and diabetes, promote mitochondrial dysfunction in endothelial cells. This review summarizes the physiological and pathophysiological roles of endothelial mitochondria in endothelial function and atherosclerosis.
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Affiliation(s)
- Kai Qu
- Clinical Research Center for Endocrinology and Metabolic Diseases, Chongqing University Three Gorges Hospital, Chongqing, China,College of Bioengineering Chongqing University, Chongqing, China
| | - Fang Yan
- Department of Geriatrics, Geriatric Diseases Institute of Chengdu, Chengdu Fifth People’s Hospital, Chengdu, Sichuan, China,Center for Medicine Research and Translation, Chengdu Fifth People’s Hospital, Chengdu, Sichuan, China
| | - Xian Qin
- Clinical Research Center for Endocrinology and Metabolic Diseases, Chongqing University Three Gorges Hospital, Chongqing, China,College of Bioengineering Chongqing University, Chongqing, China
| | - Kun Zhang
- Clinical Research Center for Endocrinology and Metabolic Diseases, Chongqing University Three Gorges Hospital, Chongqing, China,College of Bioengineering Chongqing University, Chongqing, China
| | - Wen He
- Department of Geriatrics, Clinical trial center, Chengdu Fifth People’s Hospital, Chengdu, Sichuan, China
| | - Mingqing Dong
- Center for Medicine Research and Translation, Chengdu Fifth People’s Hospital, Chengdu, Sichuan, China,*Correspondence: Mingqing Dong, ; Guicheng Wu,
| | - Guicheng Wu
- Clinical Research Center for Endocrinology and Metabolic Diseases, Chongqing University Three Gorges Hospital, Chongqing, China,*Correspondence: Mingqing Dong, ; Guicheng Wu,
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Gao R, Chen Z, Wu Y, Chen R, Zheng W, Qi L, Liu X, Liu X, Liu L. SIRT3 alleviates mitochondrial dysfunction induced by recurrent low glucose and improves the supportive function of astrocytes to neurons. Free Radic Biol Med 2022; 193:405-420. [PMID: 36306990 DOI: 10.1016/j.freeradbiomed.2022.10.313] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/08/2022] [Revised: 09/22/2022] [Accepted: 10/20/2022] [Indexed: 11/06/2022]
Abstract
Hypoglycemia is an independent risk factor of cognitive impairment in patients with diabetes. Our previous study indicated that dysfunction of astrocytic mitochondria induced by recurrent low glucose (RLG) may account for hypoglycemia-associated neuronal injury and cognitive decline. Sirtuin 3 (SIRT3) is a key deacetylase for mitochondrial proteins and has recently been demonstrated to be an important regulator of mitochondrial function. However, whether mitochondrial dysfunction due to hypoglycemia is associated with astrocytic SIRT3 remains unclear, and few studies have focused on the impact of astrocytic SIRT3 on neuronal survival. In the present work, primary mouse cortical astrocytes cultured in normal glucose (5.5 mM) and high glucose (16.5 mM) were treated with five rounds of RLG (0.1 mM). The results showed that RLG suppressed SIRT3 expression in a glucose-dependent manner. High-glucose culture considerably increased the vulnerability of SIRT3 to RLG, leading to disrupted mitochondrial morphology in astrocytes. Overexpression of SIRT3 markedly improved astrocytic mitochondrial function and reduced RLG-induced oxidative stress. Moreover, SIRT3 suppressed a shift towards a neuroinflammatory A1-like reactive phenotype of astrocytes in response to RLG with reduced IL-1β, IL-6, and TNFα levels. Furthermore, it elevated brain-derived neurotrophic factor (BDNF) levels and promoted neurite growth by activating BDNF/TrkB signaling in the co-cultured neurons. The present study reveals the probable crosstalk between neurons and astrocytes after hypoglycemic exposure and provides a potential target in treating hypoglycemia-associated neuronal injury.
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Affiliation(s)
- Ruonan Gao
- Department of Endocrinology, Fujian Medical University Union Hospital, Fuzhou, 350001, China
| | - Zhou Chen
- Department of Clinical Pharmacy and Pharmacy Administration, School of Pharmacy, Fujian Medical University, Fuzhou, 350122, China; Fujian Key Laboratory of Natural Medicine Pharmacology, Fujian Medical University, Fuzhou, 350122, China
| | - Yubin Wu
- Department of Endocrinology, Fujian Medical University Union Hospital, Fuzhou, 350001, China
| | - Ruiyu Chen
- Department of Clinical Pharmacy and Pharmacy Administration, School of Pharmacy, Fujian Medical University, Fuzhou, 350122, China
| | - Wenrong Zheng
- Department of Clinical Pharmacy and Pharmacy Administration, School of Pharmacy, Fujian Medical University, Fuzhou, 350122, China
| | - Liqin Qi
- Department of Endocrinology, Fujian Medical University Union Hospital, Fuzhou, 350001, China
| | - Xiaoying Liu
- Department of Endocrinology, Fujian Medical University Union Hospital, Fuzhou, 350001, China
| | - Xiaohong Liu
- Department of Endocrinology, Fujian Medical University Union Hospital, Fuzhou, 350001, China
| | - Libin Liu
- Department of Endocrinology, Fujian Medical University Union Hospital, Fuzhou, 350001, China.
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13
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Shi W, Tan C, Liu C, Chen D. Mitochondrial fission mediated by Drp1-Fis1 pathway and neurodegenerative diseases. Rev Neurosci 2022; 34:275-294. [PMID: 36059131 DOI: 10.1515/revneuro-2022-0056] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Accepted: 07/08/2022] [Indexed: 11/15/2022]
Abstract
In recent years, the role of mitochondrial dynamics in neurodegenerative diseases has becoming increasingly important. More and more evidences have shown that in pathological conditions, abnormal mitochondrial divisions, especially Drp1-Fis1-mediated divisions, play an important role in the occurrence and development of Alzheimer's disease, Parkinson's disease, amyotrophic lateral sclerosis, Huntington's disease, glaucoma, and other neurodegenerative diseases. This review highlights several new mechanisms of physiological fission of mitochondria and the difference/connection of physiological/pathological mitochondrial fission. In addition, we described the relationship between abnormal mitochondrial dynamics and neurodegenerative diseases in detail and emphatically summarized its detection indicators in basic experiments, trying to provide references for further mechanism exploration and therapeutic targets.
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Affiliation(s)
- Wenjia Shi
- Department of Anatomy and Neurobiology, School of Basic Medical Science, Central South University, Changsha 410013, Hunan Province, China
| | - Cheng Tan
- Department of Anatomy and Neurobiology, School of Basic Medical Science, Central South University, Changsha 410013, Hunan Province, China
| | - Can Liu
- Department of Anatomy and Neurobiology, School of Basic Medical Science, Central South University, Changsha 410013, Hunan Province, China
| | - Dan Chen
- Department of Anatomy and Neurobiology, School of Basic Medical Science, Central South University, Changsha 410013, Hunan Province, China
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Zhang MY, Zhu L, Bao X, Xie TH, Cai J, Zou J, Wang W, Gu S, Li Y, Li HY, Yao Y, Wei TT. Inhibition of Drp1 ameliorates diabetic retinopathy by regulating mitochondrial homeostasis. Exp Eye Res 2022; 220:109095. [PMID: 35490835 DOI: 10.1016/j.exer.2022.109095] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Revised: 04/06/2022] [Accepted: 04/25/2022] [Indexed: 12/19/2022]
Abstract
Diabetic retinopathy (DR) is a potentially blinding complication resulting from diabetes mellitus (DM). Retinal vascular endothelial cells (RMECs) dysfunction occupies an important position in the pathogenesis of DR, and mitochondrial disorders play a vital role in RMECs dysfunction. However, the detailed mechanisms underlying DR-induced mitochondrial disorders in RMECs remain elusive. In the present study, we used High glucose (HG)-induced RMECs in vitro and streptozotocin (STZ)-induced Sprague-Dawley rats in vivo to explore the related mechanisms. We found that HG-induced mitochondrial dysfunction via mitochondrial Dynamin-related protein 1(Drp1)-mediated mitochondrial fission. Drp1 inhibitor, Mdivi-1, rescued HG-induced mitochondrial dysfunction. Protein Kinase Cδ (PKCδ) could induce phosphorylation of Drp1, and we found that HG induced phosphorylation of PKCδ. PKCδ inhibitor (Go 6983) or PKCδ siRNA reversed HG-induced phosphorylation of Drp1 and further mitochondrial dysfunction. The above studies indicated that HG increases mitochondrial fission via promoting PKCδ/Drp1 signaling. Drp1 induces excessive mitochondrial fission and produces damaged mitochondrial, and mitophagy plays a key role in clearing damaged mitochondrial. Our study showed that HG suppressed mitophagy via inhibiting LC3B-II formation and p62 degradation. 3-MA (autophagy inhibitor) aggravated HG-induced RMECs damage, while rapamycin (autophagy agonist) rescued the above phenomenon. Further studies were identified that HG inhibited mitophagy by down-regulation of the PINK1/Parkin signaling pathway, and PINK1 siRNA aggravated HG-induced RMECs damage. Further in-depth study, we propose that Drp1 promotion of Hexokinase II (HK-II) separation from mitochondria, thus inhibiting HK-II-PINK1-mediated mitophagy. In vivo, we found that intraretinal microvascular abnormalities (IRMA), including retinal vascular leakage, acellular capillaries, and apoptosis were increased in STZ-induced DR rats, which were reversed by pretreatment with Mdivi-1 or Rapamycin. Altogether, our findings provide new insight into the mechanisms underlying the regulation of mitochondrial homeostasis and provide a potential treatment strategy for Diabetic retinopathy.
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Affiliation(s)
- Meng-Yuan Zhang
- Department of Ophthalmology, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi, PR China
| | - Lingpeng Zhu
- Center of Clinical Research, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi, PR China
| | - Xun Bao
- Department of Ophthalmology, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi, PR China
| | - Tian-Hua Xie
- Department of Ophthalmology, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi, PR China
| | - Jiping Cai
- Department of Ophthalmology, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi, PR China
| | - Jian Zou
- Center of Clinical Research, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi, PR China
| | - Wenjuan Wang
- Center of Clinical Research, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi, PR China
| | - Shun Gu
- Department of Ophthalmology, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi, PR China
| | - Yan Li
- Department of Ophthalmology, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi, PR China
| | - Hong-Ying Li
- Department of Ophthalmology, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi, PR China
| | - Yong Yao
- Department of Ophthalmology, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi, PR China; Department of Ophthalmology, The Affiliated Wuxi No.2 People's Hospital of Nanjing Medical University, Wuxi, PR China.
| | - Ting-Ting Wei
- Center of Clinical Research, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi, PR China.
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Mitochondrial Quality and Quantity Control: Mitophagy Is a Potential Therapeutic Target for Ischemic Stroke. Mol Neurobiol 2022; 59:3110-3123. [PMID: 35266113 DOI: 10.1007/s12035-022-02795-6] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Accepted: 03/05/2022] [Indexed: 02/07/2023]
Abstract
Ischemic stroke is a cerebrovascular disease with high mortality and disability, which seriously affects the health and lives of people around the world. Effective treatment for ischemic stroke has been limited by its complex pathological mechanisms. Increasing evidence has indicated that mitochondrial dysfunction plays an essential role in the occurrence, development, and pathological processes of ischemic stroke. Therefore, strict control of the quality and quantity of mitochondria via mitochondrial fission and fusion as well as mitophagy is beneficial to the survival and normal function maintenance of neurons. Under certain circumstances, excessive mitophagy also could induce cell death. This review discusses the dynamic changes and double-edged roles of mitochondria and related signaling pathways of mitophagy in the pathophysiology of ischemic stroke. Furthermore, we focus on the possibility of modulating mitophagy as a potential therapy for the prevention and prognosis of ischemic stroke. Notably, we reviewed recent advances in the studies of natural compounds, which could modulate mitophagy and exhibit neuroprotective effects, and discussed their potential application in the treatment of ischemic stroke.
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Huang W, Mao L, Xie W, Cai S, Huang Q, Liu Y, Chen Z. Impact of UCP2 depletion on heat stroke-induced mitochondrial function in human umbilical vein endothelial cells. Int J Hyperthermia 2022; 39:287-296. [PMID: 35129048 DOI: 10.1080/02656736.2022.2032846] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
Affiliation(s)
- Wei Huang
- The First School of Clinical Medicine, Southern Medical University, Guangzhou, P.R. China
- Department of Critical Care Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, P.R. China
| | - Liangfeng Mao
- The First School of Clinical Medicine, Southern Medical University, Guangzhou, P.R. China
- Department of Critical Care Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, P.R. China
| | - Weidang Xie
- Department of Critical Care Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, P.R. China
| | - Sumin Cai
- Department of Critical Care Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, P.R. China
| | - Qiaobing Huang
- Guangdong Provincial Key Lab of Shock and Microcirculation, Department of Pathophysiology, Southern Medical University, Guangzhou, P.R. China
| | - Yanan Liu
- Department of Critical Care Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, P.R. China
| | - Zhongqing Chen
- The First School of Clinical Medicine, Southern Medical University, Guangzhou, P.R. China
- Department of Critical Care Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, P.R. China
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17
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Lindenmann J, Smolle C, Kamolz LP, Smolle-Juettner FM, Graier WF. Survey of Molecular Mechanisms of Hyperbaric Oxygen in Tissue Repair. Int J Mol Sci 2021; 22:ijms222111754. [PMID: 34769182 PMCID: PMC8584249 DOI: 10.3390/ijms222111754] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Revised: 10/24/2021] [Accepted: 10/26/2021] [Indexed: 01/08/2023] Open
Abstract
For more than six decades, hyperbaric oxygen (HBO) has been used for a variety of indications involving tissue repair. These indications comprise a wide range of diseases ranging from intoxications to ischemia-reperfusion injury, crush syndrome, central nervous injury, radiation-induced tissue damage, burn injury and chronic wounds. In a systematic review, the molecular mechanisms triggered by HBO described within the last two decades were compiled. They cover a wide range of pathways, including transcription, cell-to-cell contacts, structure, adhesion and transmigration, vascular signaling and response to oxidative stress, apoptosis, autophagy and cell death, as well as inflammatory processes. By analyzing 71 predominantly experimental publications, we established an overview of the current concepts regarding the molecular mechanisms underlying the effects of HBO. We considered both the abovementioned pathways and their role in various applications and indications.
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Affiliation(s)
- Joerg Lindenmann
- Division of Thoracic and Hyperbaric Surgery, Department of Surgery, Medical University of Graz, Auenbruggerplatz 29/3, 8036 Graz, Austria;
- Correspondence:
| | - Christian Smolle
- Division of Plastic, Aesthetic and Reconstructive Surgery, Department of Surgery, Medical University of Graz, Auenbruggerplatz 29/2, 8036 Graz, Austria; (C.S.); (L.-P.K.)
| | - Lars-Peter Kamolz
- Division of Plastic, Aesthetic and Reconstructive Surgery, Department of Surgery, Medical University of Graz, Auenbruggerplatz 29/2, 8036 Graz, Austria; (C.S.); (L.-P.K.)
| | - Freyja Maria Smolle-Juettner
- Division of Thoracic and Hyperbaric Surgery, Department of Surgery, Medical University of Graz, Auenbruggerplatz 29/3, 8036 Graz, Austria;
| | - Wolfgang F. Graier
- Gottfried Schatz Research Center for Cell Signaling, Metabolism and Aging Molecular Biology and Biochemistry, Medical University of Graz, Neue Stiftingtalstraße 6/6, 8010 Graz, Austria;
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18
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Zhou X, Chen H, Wang L, Lenahan C, Lian L, Ou Y, He Y. Mitochondrial Dynamics: A Potential Therapeutic Target for Ischemic Stroke. Front Aging Neurosci 2021; 13:721428. [PMID: 34557086 PMCID: PMC8452989 DOI: 10.3389/fnagi.2021.721428] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Accepted: 08/16/2021] [Indexed: 12/13/2022] Open
Abstract
Stroke is one of the leading causes of death and disability worldwide. Brain injury after ischemic stroke involves multiple pathophysiological mechanisms, such as oxidative stress, mitochondrial dysfunction, excitotoxicity, calcium overload, neuroinflammation, neuronal apoptosis, and blood-brain barrier (BBB) disruption. All of these factors are associated with dysfunctional energy metabolism after stroke. Mitochondria are organelles that provide adenosine triphosphate (ATP) to the cell through oxidative phosphorylation. Mitochondrial dynamics means that the mitochondria are constantly changing and that they maintain the normal physiological functions of the cell through continuous division and fusion. Mitochondrial dynamics are closely associated with various pathophysiological mechanisms of post-stroke brain injury. In this review, we will discuss the role of the molecular mechanisms of mitochondrial dynamics in energy metabolism after ischemic stroke, as well as new strategies to restore energy homeostasis and neural function. Through this, we hope to uncover new therapeutic targets for the treatment of ischemic stroke.
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Affiliation(s)
- Xiangyue Zhou
- Department of Neurosurgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Hanmin Chen
- Department of Neurosurgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Ling Wang
- Department of Operating Room, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Cameron Lenahan
- Department of Biomedical Sciences, Burrell College of Osteopathic Medicine, Las Cruces, NM, United States
| | - Lifei Lian
- Department of Neurology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yibo Ou
- Department of Neurosurgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yue He
- Department of Neurosurgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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Huang W, Xie W, Gong J, Wang W, Cai S, Huang Q, Chen Z, Liu Y. Heat stress induces RIP1/RIP3-dependent necroptosis through the MAPK, NF-κB, and c-Jun signaling pathways in pulmonary vascular endothelial cells. Biochem Biophys Res Commun 2020; 528:206-212. [PMID: 32471717 DOI: 10.1016/j.bbrc.2020.04.150] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2020] [Accepted: 04/29/2020] [Indexed: 01/30/2023]
Abstract
Necroptosis represents a newly defined form of regulated necrosis and participates in various human inflammatory diseases. It remains unclear whether necroptosis is presented in heatstroke-induced lung injury. We show that heat stress(HS) triggered an significant upregulation of receptor-interacting protein 1 (RIP1) and mixed lineage kinase domain-like protein (MLKL) expression in a time-dependent manner, without a significant change of receptor-interacting protein 3 (RIP3). Furthermore, co-immunoprecipitation assays showed that RIP1 binds to RIP3 to form the necrosome in heat stress-induced PMVECs. In vitro, necrostatin-1 (Nec-1) pre-treatment reduced heat stress-induced PMVECs necroptosis, which also inhibited HMGB1 translocation from the nucleus into the cytoplasm. Similarly, inhibition for ERK (PD98059), NF-κB (BAY11-7082) and c-Jun (c-Jun peptide), respectively, also suppressed the HMGB1 cytoplasm translocation. Furthermore, siRNA-mediated RIP1/RIP3 knockdown negatively regulated the release of HMGB1 in HS-induced necroptosis through the ERK, NF-κB, and c-Jun signaling pathways. Our study reveals that HS induces RIP1/RIP3-dependent necroptosis through the MAPK, NF-κB, and c-Jun signaling pathways in PMVECs.
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Affiliation(s)
- Wei Huang
- Department of Critical Care Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China; The First School of Clinical Medicine, Southern Medical University, Guangzhou, 510515, China
| | - Weidang Xie
- Department of Critical Care Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Jian Gong
- The First School of Clinical Medicine, Southern Medical University, Guangzhou, 510515, China; Department of Intensive Care Medicine, The Third People's Hospital of Longgang District, Shenzhen, 518115, China
| | - Wenyan Wang
- Department of Critical Care Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China; The First School of Clinical Medicine, Southern Medical University, Guangzhou, 510515, China
| | - Sumin Cai
- Department of Critical Care Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Qiaobing Huang
- Guangdong Provincial Key Lab of Shock and Microcirculation, Department of Pathophysiology, Southern Medical University, Guangzhou, 510515, China
| | - Zhongqing Chen
- Department of Critical Care Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Yanan Liu
- Department of Critical Care Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China.
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