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Liang Y, Fan T, Bai M, Cui N, Li W, Wang J, Guan Y. Chikusetsu Saponin IVa liposomes modified with a retro-enantio peptide penetrating the blood-brain barrier to suppress pyroptosis in acute ischemic stroke rats. J Nanobiotechnology 2024; 22:393. [PMID: 38965602 PMCID: PMC11223377 DOI: 10.1186/s12951-024-02641-y] [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: 02/09/2024] [Accepted: 06/15/2024] [Indexed: 07/06/2024] Open
Abstract
BACKGROUND The therapeutic strategies for acute ischemic stroke were faced with substantial constraints, emphasizing the necessity to safeguard neuronal cells during cerebral ischemia to reduce neurological impairments and enhance recovery outcomes. Despite its potential as a neuroprotective agent in stroke treatment, Chikusetsu saponin IVa encounters numerous challenges in clinical application. RESULT Brain-targeted liposomes modified with THRre peptides showed substantial uptake by bEnd. 3 and PC-12 cells and demonstrated the ability to cross an in vitro blood-brain barrier model, subsequently accumulating in PC-12 cells. In vivo, they could significantly accumulate in rat brain. Treatment with C-IVa-LPs-THRre notably reduced the expression of proteins in the P2RX7/NLRP3/Caspase-1 pathway and inflammatory factors. This was evidenced by decreased cerebral infarct size and improved neurological function in MCAO rats. CONCLUSION The findings indicate that C-IVa-LPs-THRre could serve as a promising strategy for targeting cerebral ischemia. This approach enhances drug concentration in the brain, mitigates pyroptosis, and improves the neuroinflammatory response associated with stroke.
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Affiliation(s)
- Yitong Liang
- Department of Pharmacy, Xijing Hospital, Air Force Medical University, Changle West Road 127, Xi'an, Shaanxi, China
| | - Tingting Fan
- Department of Pharmacy, Xijing Hospital, Air Force Medical University, Changle West Road 127, Xi'an, Shaanxi, China
| | - Min Bai
- Department of Geriatrics, Xijing Hospital, Air Force Medical University, Changle West Road 127, Xi'an, Shaanxi, China
| | - Na Cui
- Department of Pharmacy, Xijing Hospital, Air Force Medical University, Changle West Road 127, Xi'an, Shaanxi, China
| | - Wangting Li
- Department of Pharmacy, Xijing Hospital, Air Force Medical University, Changle West Road 127, Xi'an, Shaanxi, China
| | - Jingwen Wang
- Department of Pharmacy, Xijing Hospital, Air Force Medical University, Changle West Road 127, Xi'an, Shaanxi, China.
| | - Yue Guan
- Department of Pharmacy, Xijing Hospital, Air Force Medical University, Changle West Road 127, Xi'an, Shaanxi, China.
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Lin QC, Wang J, Wang XL, Pan C, Jin SW, Char S, Tao YX, Cao H, Li J. Hippocampal HDAC6 promotes POCD by regulating NLRP3-induced microglia pyroptosis via HSP90/HSP70 in aged mice. Biochim Biophys Acta Mol Basis Dis 2024; 1870:167137. [PMID: 38527593 DOI: 10.1016/j.bbadis.2024.167137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Revised: 03/17/2024] [Accepted: 03/19/2024] [Indexed: 03/27/2024]
Abstract
BACKGROUND Postoperative Cognitive Dysfunction (POCD) has attracted increased attention, but its precise mechanism remains to be explored. This study aimed to figure out whether HDAC6 could regulate NLRP3-induced pyroptosis by modulating the functions of HSP70 and HSP90 in microglia to participate in postoperative cognitive dysfunction in aged mice. METHODS Animal models of postoperative cognitive dysfunction in aged mice were established by splenectomy under sevoflurane anesthesia. Morris water maze was used to examine the cognitive function and motor ability. Sixteen-months-old C57BL/6 male mice were randomly divided into six groups: control group (C group), sham surgery group (SA group), splenectomy group (S group), splenectomy + HDAC6 inhibitor ACY-1215 group (ACY group), splenectomy + HDAC6 inhibitor ACY-1215 + HSP70 inhibitor Apoptozole group (AP group), splenectomy + solvent control group (SC group). The serum and hippocampus of mice were taken after mice were executed. The protein levels of HDAC6, HSP90, HSP70, NLRP3, GSDMD-N, cleaved-Caspase-1 (P20), IL-1β were detected by western blotting. Serum IL-1β, IL-6 and S100β were measured using ELISA assay, and cell localization of HDAC6 was detected by immunofluorescence. In vitro experiments, BV2 cells were used to validate whether this mechanism worked in microglia. The protein levels of HDAC6, HSP90, HSP70, NLRP3, GSDMD-N, P20, IL-1β were detected by western blotting and the content of IL-1β in the supernatant was measured using ELISA assay. The degree of acetylation of HSP90, the interaction of HSP70, HSP90 and NLRP3 were analyzed by coimmunoprecipitation assay. RESULTS Splenectomy under sevoflurane anesthesia in aged mice could prolong the escape latency, reduce the number of crossing platforms, increase the expression of HDAC6 and activate the NLRP3 inflammasome to induce pyroptosis in hippocampus microglia. Using ACY-1215 could reduce the activation of NLRP3 inflammasome, the pyroptosis of microglia and the degree of spatial memory impairment. Apoptozole could inhibit the binding of HSP70 to NLRP3, reduce the degradation of NLRP3 and reverse the protective effect of HDAC6 inhibitors. The results acquired in vitro experiments closely resembled those in vivo, LPS stimulation led to the pyroptosis of BV2 microglia cells and the release of IL-1β due to the activation of the NLRP3 inflammasome, ACY-1215 showed the anti-inflammatory effect and Apoptozole exerted the opposite effect. CONCLUSIONS Our findings suggest that hippocampal HDAC6 promotes POCD by regulating NLRP3-induced microglia pyroptosis via HSP90/HSP70 in aged mice.
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Affiliation(s)
- Qi-Cheng Lin
- Department of Anesthesiology and Perioperative Medicine, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China; Key Laboratory of Anesthesiology of Zhejiang Province, Wenzhou Medical University, Wenzhou, Zhejiang, China; Key Laboratory of Pediatric Anesthesiology, Ministry of Education, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Jiao Wang
- Department of Anesthesiology and Perioperative Medicine, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China; Key Laboratory of Anesthesiology of Zhejiang Province, Wenzhou Medical University, Wenzhou, Zhejiang, China; Key Laboratory of Pediatric Anesthesiology, Ministry of Education, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Xin-Lin Wang
- Department of Anesthesiology and Perioperative Medicine, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China; Key Laboratory of Anesthesiology of Zhejiang Province, Wenzhou Medical University, Wenzhou, Zhejiang, China; Key Laboratory of Pediatric Anesthesiology, Ministry of Education, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Chi Pan
- Department of Anesthesiology and Perioperative Medicine, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China; Key Laboratory of Anesthesiology of Zhejiang Province, Wenzhou Medical University, Wenzhou, Zhejiang, China; Key Laboratory of Pediatric Anesthesiology, Ministry of Education, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Shao-Wu Jin
- Department of Anesthesiology and Perioperative Medicine, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China; Key Laboratory of Anesthesiology of Zhejiang Province, Wenzhou Medical University, Wenzhou, Zhejiang, China; Key Laboratory of Pediatric Anesthesiology, Ministry of Education, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Steven Char
- Department of Anesthesiology, Rutgers New Jersey Medical School, Newark, NJ, USA
| | - Yuan-Xiang Tao
- Department of Anesthesiology, Rutgers New Jersey Medical School, Newark, NJ, USA
| | - Hong Cao
- Department of Anesthesiology and Perioperative Medicine, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China; Key Laboratory of Anesthesiology of Zhejiang Province, Wenzhou Medical University, Wenzhou, Zhejiang, China; Key Laboratory of Pediatric Anesthesiology, Ministry of Education, Wenzhou Medical University, Wenzhou, Zhejiang, China.
| | - Jun Li
- Department of Anesthesiology and Perioperative Medicine, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China; Key Laboratory of Anesthesiology of Zhejiang Province, Wenzhou Medical University, Wenzhou, Zhejiang, China; Key Laboratory of Pediatric Anesthesiology, Ministry of Education, Wenzhou Medical University, Wenzhou, Zhejiang, China.
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Han S, Bian R, Chen Y, Liang J, Zhao P, Gu Y, Zhang D. Dysregulation of the Gut Microbiota Contributes to Sevoflurane-Induced Cognitive Dysfunction in Aged Mice by Activating the NLRP3 Inflammasome. Mol Neurobiol 2024:10.1007/s12035-024-04229-x. [PMID: 38740706 DOI: 10.1007/s12035-024-04229-x] [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: 01/05/2024] [Accepted: 05/09/2024] [Indexed: 05/16/2024]
Abstract
Postoperative cognitive dysfunction (POCD), a common complication in elderly patients after surgery, seriously affects patients' quality of life. Long-term or repeated inhalation of sevoflurane can cause neuroinflammation, which is a risk factor for POCD. However, the underlying mechanism needs to be further explored. Recent research had revealed a correlation between neurological disorders and changes in the gut microbiota. Dysfunction of the gut microbiota is involved in the occurrence and development of central nervous system diseases. Here, we found that cognitive dysfunction in aged mice induced by sevoflurane exposure (3%, 2 hours daily, for 3 days) was related to gut microbiota dysbiosis, while probiotics improved cognitive function by alleviating dysbiosis. Sevoflurane caused a significant decrease in the abundance of Akkermansia (P<0.05), while probiotics restored the abundance of Akkermansia. Compared to those in the control group, sevoflurane significantly increased the expression of NLRP3 inflammasome-associated proteins in the gut and brain in the sevoflurane-exposed group, thus causing neuroinflammation and synaptic damage, which probiotics can mitigate (con vs. sev, P < 0.01; p+sev vs. sev, P < 0.05). In conclusion, for the first time, our study revealed that dysbiosis of the gut microbiota caused by sevoflurane anesthesia contributes to the NLRP3 inflammasome-mediated neuroinflammation and cognitive dysfunction from the perspective of the gut-brain axis. Perhaps postoperative cognitive impairment in elderly patients can be alleviated or even prevented by regulating the gut microbiota. This study provides new insights and methods for the prevention and treatment of cognitive impairment induced by sevoflurane.
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Affiliation(s)
- Shanshan Han
- Department of Anesthesiology, Wuxi Maternal and Child Health Care Hospital Affiliated to Jiangnan University, Wuxi, 214002, China
- Department of Basic Medicine, Wuxi School of Medicine, Jiangnan University, Wuxi, 214122, China
| | - Ruxi Bian
- Department of Basic Medicine, Wuxi School of Medicine, Jiangnan University, Wuxi, 214122, China
| | - Yuxuan Chen
- Department of Basic Medicine, Wuxi School of Medicine, Jiangnan University, Wuxi, 214122, China
| | - Junjie Liang
- Department of Basic Medicine, Wuxi School of Medicine, Jiangnan University, Wuxi, 214122, China
| | - Peng Zhao
- Department of Basic Medicine, Wuxi School of Medicine, Jiangnan University, Wuxi, 214122, China
| | - Yanfang Gu
- Department of Gynecology, Jiangnan University Affiliated Hospital, Wuxi, 214002, China.
| | - Dengxin Zhang
- Department of Anesthesiology, Wuxi Maternal and Child Health Care Hospital Affiliated to Jiangnan University, Wuxi, 214002, China.
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Li N, Ma Y, Li C, Sun M, Qi F. Dexmedetomidine alleviates sevoflurane-induced neuroinflammation and neurocognitive disorders by suppressing the P2X4R/NLRP3 pathway in aged mice. Int J Neurosci 2024; 134:511-521. [PMID: 36066545 DOI: 10.1080/00207454.2022.2121921] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Revised: 08/25/2022] [Accepted: 09/01/2022] [Indexed: 10/14/2022]
Abstract
PURPOSE Microglia-mediated inflammation is associated with perioperative neurocognitive disorders (PNDs) caused by sevoflurane. Dexmedetomidine has been reported to protect against sevoflurane-induced cognitive impairment. In this study, we investigated the effects and underlying mechanisms of dexmedetomidine on sevoflurane-induced microglial neuroinflammation and PNDs. METHODS Wild-type and purinergic ionotropic 4 receptor (P2X4R) overexpressing C57/BL6 mice were intraperitoneally injected with 20 μg/kg dexmedetomidine or an equal volume of normal saline 2 h prior to sevoflurane exposure. The Morris water maze (MWM) test was performed to assess cognitive function. Immunofluorescence staining was employed to detect microglial activation. The expression levels of proinflammatory cytokines were measured by real-time quantitative PCR (qRT-PCR) and enzyme-linked immunosorbent assay (ELISA). The protein levels of P2X4R and NOD-like receptor protein 3 (NLRP3) were detected by Western Blotting. RESULTS Sevoflurane increased the number of microglia, upregulated the levels of proinflammatory cytokines, elevated the protein levels of P2X4R and NLRP3 in the hippocampus and induced cognitive decline, while pretreatment with dexmedetomidine downregulated the protein levels of P2X4R and NLRP3, alleviated sevoflurane-induced microglial neuroinflammation and improved cognitive dysfunction. Moreover, overexpression of P2X4R weakened the neuroprotective effect of dexmedetomidine. CONCLUSIONS Dexmedetomidine protected against sevoflurane-induced neuroinflammation and neurocognitive disorders by suppressing the P2X4R/NLRP3 pathway.
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Affiliation(s)
- Ning Li
- Department of Anesthesiology, Qilu Hospital of Shandong University, Jinan, China
- Department of Anesthesiology, The Second Hospital of Shandong University, Jinan, China
| | - Yufeng Ma
- Department of Anesthesiology, The Second Hospital of Shandong University, Jinan, China
| | - Chuangang Li
- Department of Anesthesiology, The Second Hospital of Shandong University, Jinan, China
| | - Manyi Sun
- Department of Anesthesiology, The Second Hospital of Shandong University, Jinan, China
| | - Feng Qi
- Department of Anesthesiology, Qilu Hospital of Shandong University, Jinan, China
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Zhao Q, Wan H, Pan H, Xu Y. Postoperative cognitive dysfunction-current research progress. Front Behav Neurosci 2024; 18:1328790. [PMID: 38357422 PMCID: PMC10865506 DOI: 10.3389/fnbeh.2024.1328790] [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: 10/27/2023] [Accepted: 01/15/2024] [Indexed: 02/16/2024] Open
Abstract
Postoperative cognitive dysfunction (POCD) commonly occurs after surgery, particularly in elderly individuals. It is characterized by a notable decline in cognitive performance, encompassing memory, attention, coordination, orientation, verbal fluency, and executive function. This reduction in cognitive abilities contributes to extended hospital stays and heightened mortality. The prevalence of POCD can reach 40% within 1 week following cardiovascular surgery and remains as high as 17% 3 months post-surgery. Furthermore, POCD exacerbates the long-term risk of Alzheimer's disease (AD). As a result, numerous studies have been conducted to investigate the molecular mechanisms underlying POCD and potential preventive strategies. This article provides a review of the research progress on POCD.
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Affiliation(s)
| | | | - Hui Pan
- Department of Anesthesiology, Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, Affiliated Cancer Hospital of University of Electronic Science and Technology of China, Chengdu, China
| | - Yiquan Xu
- Department of Anesthesiology, Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, Affiliated Cancer Hospital of University of Electronic Science and Technology of China, Chengdu, China
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Zhang S, Liu C, Sun J, Li Y, Lu J, Xiong X, Hu L, Zhao H, Zhou H. Bridging the Gap: Investigating the Link between Inflammasomes and Postoperative Cognitive Dysfunction. Aging Dis 2023; 14:1981-2002. [PMID: 37450925 PMCID: PMC10676784 DOI: 10.14336/ad.2023.0501] [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: 12/03/2022] [Accepted: 05/01/2023] [Indexed: 07/18/2023] Open
Abstract
Postoperative cognitive dysfunction (POCD) is a cluster of cognitive problems that may arise after surgery. POCD symptoms include memory loss, focus inattention, and communication difficulties. Inflammasomes, intracellular multiprotein complexes that control inflammation, may have a significant role in the development of POCD. It has been postulated that the NLRP3 inflammasome promotes cognitive impairment by triggering the inflammatory response in the brain. Nevertheless, there are many gaps in the current literature to understand the underlying pathophysiological mechanisms and develop future therapy. This review article underlines the limits of our current knowledge about the NLRP3 (NOD-, LRR- and pyrin domain-containing protein 3) inflammasome and POCD. We first discuss inflammasomes and their types, structures, and functions, then summarize recent evidence of the NLRP3 inflammasome's involvement in POCD. Next, we propose a hypothesis that suggests the involvement of inflammasomes in multiple organs, including local surgical sites, blood circulation, and other peripheral organs, leading to systemic inflammation and subsequent neuronal dysfunction in the brain, resulting in POCD. Research directions are then discussed, including analyses of inflammasomes in more clinical POCD animal models and clinical trials, studies of inflammasome types that are involved in POCD, and investigations into whether inflammasomes occur at the surgical site, in circulating blood, and in peripheral organs. Finally, we discuss the potential benefits of using new technologies and approaches to study inflammasomes in POCD. A thorough investigation of inflammasomes in POCD might substantially affect clinical practice.
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Affiliation(s)
- Siyu Zhang
- Anesthesiology Department, Zhejiang Chinese Medical University, Hangzhou, China.
- Anesthesiology Department, The Second Hospital of Jiaxing, The Second Affiliated Hospital of Jiaxing University, Jiaxing Key Laboratory of Basic Research and Clinical Transformation of Perioperative Precision Anesthesia, Jiaxing, China.
| | - Cuiying Liu
- School of Nursing, Capital Medical University, Beijing, China.
- Beijing Institute of Brain Disorders, Laboratory of Brain Disorders, Ministry of Science and Technology, Joint Innovation Center for Brain Disorders, Capital Medical University, Beijing, China.
| | - Jintao Sun
- Anesthesiology Department, Zhejiang Chinese Medical University, Hangzhou, China.
- Anesthesiology Department, The Second Hospital of Jiaxing, The Second Affiliated Hospital of Jiaxing University, Jiaxing Key Laboratory of Basic Research and Clinical Transformation of Perioperative Precision Anesthesia, Jiaxing, China.
| | - Yang Li
- Anesthesiology Department, Zhejiang Chinese Medical University, Hangzhou, China.
- Anesthesiology Department, The Second Hospital of Jiaxing, The Second Affiliated Hospital of Jiaxing University, Jiaxing Key Laboratory of Basic Research and Clinical Transformation of Perioperative Precision Anesthesia, Jiaxing, China.
| | - Jian Lu
- Anesthesiology Department, The Second Hospital of Jiaxing, The Second Affiliated Hospital of Jiaxing University, Jiaxing Key Laboratory of Basic Research and Clinical Transformation of Perioperative Precision Anesthesia, Jiaxing, China.
| | - Xiaoxing Xiong
- Department of Neurosurgery, Renmin Hospital of Wuhan University, Wuhan, China
| | - Li Hu
- Anesthesiology Department, The Second Hospital of Jiaxing, The Second Affiliated Hospital of Jiaxing University, Jiaxing Key Laboratory of Basic Research and Clinical Transformation of Perioperative Precision Anesthesia, Jiaxing, China.
| | - Heng Zhao
- Anesthesiology Department, The Second Hospital of Jiaxing, The Second Affiliated Hospital of Jiaxing University, Jiaxing Key Laboratory of Basic Research and Clinical Transformation of Perioperative Precision Anesthesia, Jiaxing, China.
- Beijing Institute of Brain Disorders, Laboratory of Brain Disorders, Ministry of Science and Technology, Joint Innovation Center for Brain Disorders, Capital Medical University, Beijing, China.
| | - Hongmei Zhou
- Anesthesiology Department, Zhejiang Chinese Medical University, Hangzhou, China.
- Anesthesiology Department, The Second Hospital of Jiaxing, The Second Affiliated Hospital of Jiaxing University, Jiaxing Key Laboratory of Basic Research and Clinical Transformation of Perioperative Precision Anesthesia, Jiaxing, China.
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Sides TR, Nelson JC, Nwachukwu KN, Boston J, Marshall SA. The Influence of Arsenic Co-Exposure in a Model of Alcohol-Induced Neurodegeneration in C57BL/6J Mice. Brain Sci 2023; 13:1633. [PMID: 38137081 PMCID: PMC10741530 DOI: 10.3390/brainsci13121633] [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: 10/19/2023] [Revised: 11/14/2023] [Accepted: 11/17/2023] [Indexed: 12/24/2023] Open
Abstract
Both excessive alcohol consumption and exposure to high levels of arsenic can lead to neurodegeneration, especially in the hippocampus. Co-exposure to arsenic and alcohol can occur because an individual with an Alcohol Use Disorder (AUD) is exposed to arsenic in their drinking water or food or because of arsenic found directly in alcoholic beverages. This study aims to determine if co-exposure to alcohol and arsenic leads to worse outcomes in neurodegeneration and associated mechanisms that could lead to cell death. To study this, mice were exposed to a 10-day gavage model of alcohol-induced neurodegeneration with varying doses of arsenic (0, 0.005, 2.5, or 10 mg/kg). The following were examined after the last dose of ethanol: (1) microglia activation assessed via immunohistochemical detection of Iba-1, (2) reactive oxygen and nitrogen species (ROS/RNS) using a colorimetric assay, (3) neurodegeneration using Fluoro-Jade® C staining (FJC), and 4) arsenic absorption using ICP-MS. After exposure, there was an additive effect of the highest dose of arsenic (10 mg/kg) in the dentate gyrus of alcohol-induced FJC+ cells. This additional cell loss may have been due to the observed increase in microglial reactivity or increased arsenic absorption following co-exposure to ethanol and arsenic. The data also showed that arsenic caused an increase in CYP2E1 expression and ROS/RNS production in the hippocampus which could have independently contributed to increased neurodegeneration. Altogether, these findings suggest a potential cyclical impact of co-exposure to arsenic and ethanol as ethanol increases arsenic absorption but arsenic also enhances alcohol's deleterious effects in the CNS.
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Affiliation(s)
- Tori R. Sides
- Department of Biological & Biomedical Sciences, North Carolina Central University, Durham, NC 27707, USA; (T.R.S.); (J.C.N.); (K.N.N.); (J.B.)
| | - James C. Nelson
- Department of Biological & Biomedical Sciences, North Carolina Central University, Durham, NC 27707, USA; (T.R.S.); (J.C.N.); (K.N.N.); (J.B.)
| | - Kala N. Nwachukwu
- Department of Biological & Biomedical Sciences, North Carolina Central University, Durham, NC 27707, USA; (T.R.S.); (J.C.N.); (K.N.N.); (J.B.)
- Integrated Biosciences PhD Program, North Carolina Central University, Durham, NC 27707, USA
| | - Jhana Boston
- Department of Biological & Biomedical Sciences, North Carolina Central University, Durham, NC 27707, USA; (T.R.S.); (J.C.N.); (K.N.N.); (J.B.)
| | - S. Alex Marshall
- Department of Biological & Biomedical Sciences, North Carolina Central University, Durham, NC 27707, USA; (T.R.S.); (J.C.N.); (K.N.N.); (J.B.)
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Yuan J, Li S, Han Y, Li F, Shi H, Shi W, Cui W. Restoration of miR-328a-5p function curtails hypoxic pulmonary hypertension through a mechanism involving PIN1/GSK3β/β-catenin axis. Int Immunopharmacol 2023; 123:110599. [PMID: 37567011 DOI: 10.1016/j.intimp.2023.110599] [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: 12/17/2022] [Revised: 06/19/2023] [Accepted: 07/01/2023] [Indexed: 08/13/2023]
Abstract
Recent evidence has highlighted the involvement of microRNAs (miRs) in hypoxic pulmonary hypertension (PH), which can be induced under hypoxic conditions. We intend to explore whether the miR-328a-5p/PIN1 axis affects hypoxic PH by regulating the GSK3β/β-catenin signaling pathway. The GEO database was retrieved to single out key miRs affecting hypoxic PH. It was observed that downregulation of miR-328a-5p occurred in hypoxia-induced PH samples. The binding affinity between miR-328a-5p to PIN1 was predicted by a bioinformatics tool and verified using a dual luciferase reporter gene assay. Rat primary pulmonary artery smooth muscle cells (PASMCs) were exposed to hypoxia for in vitro cell experiments. miR-328a-5p could target and downregulate PIN1 expression, leading to suppressed GSK3β/β-catenin activation. In addition, GSK3β/β-catenin inactivation curtailed hypoxia-induced vascular inflammatory responses and proliferation and migration in PASMCs in vitro. A hypoxic PH model was established in SD rats to observe the effects of miR-328a-5p on hemodynamic parameters and right heart remodeling. It was demonstrated in vivo that miR-328a-5p downregulated PIN1 expression to suppress GSK3β/β-catenin signaling, thereby reducing the vascular inflammatory response and alleviating disease progression in hypoxia-induced PH rats. The evidence provided by our study highlighted the involvement of miR-328a-5p in the translational suppression of PIN1 and the blockade of the GSK3β/β-catenin signaling pathway, resulting in attenuation of hypoxic PH progression.
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Affiliation(s)
- Jieqing Yuan
- Department of Respiratory and Critical Care Medicine, The First People's Hospital of Xuzhou, the Affiliated Xuzhou Municipal Hospital of Xuzhou Medical University, Xuzhou 221100, PR China
| | - Shanshan Li
- Department of Respiratory and Critical Care Medicine, The First People's Hospital of Xuzhou, the Affiliated Xuzhou Municipal Hospital of Xuzhou Medical University, Xuzhou 221100, PR China
| | - Yu Han
- Department of Respiratory and Critical Care Medicine, The First People's Hospital of Xuzhou, the Affiliated Xuzhou Municipal Hospital of Xuzhou Medical University, Xuzhou 221100, PR China
| | - Fujun Li
- Department of Emergency Medicine, The First People's Hospital of Xuzhou, the Affiliated Xuzhou Municipal Hospital of Xuzhou Medical University, Xuzhou 221100, PR China
| | - Hai Shi
- Department of Respiratory and Critical Care Medicine, The First People's Hospital of Xuzhou, the Affiliated Xuzhou Municipal Hospital of Xuzhou Medical University, Xuzhou 221100, PR China
| | - Weitao Shi
- Department of Critical Care Medicine, The First People's Hospital of Xuzhou, the Affiliated Xuzhou Municipal Hospital of Xuzhou Medical University, Xuzhou 221100, PR China
| | - Wenjie Cui
- Department of Respiratory and Critical Care Medicine, The First People's Hospital of Xuzhou, the Affiliated Xuzhou Municipal Hospital of Xuzhou Medical University, Xuzhou 221100, PR China.
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Xu Z, Yao X, Zhao Y, Yao B. C/EBPα involvement in microglial polarization via HDAC1/STAT3 pathway aggravated sevoflurane-induced cognitive impairment in aged rats. PeerJ 2023; 11:e15466. [PMID: 37361037 PMCID: PMC10286799 DOI: 10.7717/peerj.15466] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Accepted: 05/05/2023] [Indexed: 06/28/2023] Open
Abstract
Background Postoperative cognitive dysfunction (POCD) is a clinically frequent postoperative complication in the elderly, which is mainly manifested by the occurrence of cognitive dysfunction after anesthetized surgery in patients. To explore the involvement of C/EBPα in microglial polarization in sevoflurane anesthesia induced cognitive impairment in aged rats. Methods Sprague-Dawley (SD) rats were anesthetized by inhalation of 3% sevoflurane for 6 h to establish the POCD model. The histopathological structure of hippocampus was observed by hematoxylin and eosin (HE) staining. Associative learning and memory function and spatial learning and memory function were assessed by conditioned fear test and water maze test. The concentrations of inflammatory factors in the hippocampus were measured by ELISA. The levels of microglial activation marker (Iba1) and microglial M1 (CD86) and M2 (CD206) polarization markers were determined by immunofluorescence staining and RT-qPCR, respectively. The transcriptional regulation of HDAC1 by C/EBPα was confirmed by dual luciferase reporter assay and ChIP assay. Results Sevoflurane-induced pathomorphological damage in the hippocampal tissue of aged rats, accompanied by elevated expression of C/EBPα. Silencing of C/EBPα alleviated hippocampal histopathological injury, inhibited M1 microglial activation and the expression of M1 marker CD86, enhanced the expression of M2 marker CD206. C/EBPα transcriptionally activated HDAC1. Knockdown of C/EBPα downregulated the expression of HDAC1 and STAT3 phosphorylated proteins, which inhibited the pro-inflammatory factors (IL-6 and TNF-α) and accelerated anti-inflammatory factors (IL-10 and TGF-β) secretion. In addition, silencing of C/EBPα caused rats to have a delayed freezing time in contextual conditioned fear, a shorter escape latency, and an increased number of platform crossings. Conclusion Inhibition of C/EBPα promotes the M2 polarization of microglia and reduces the production of pro-inflammatory cytokines to alleviate the cognitive dysfunction of sevoflurane-induced elderly rats by HDAC1/STAT3 pathway.
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Affiliation(s)
- Zhao Xu
- Department of Anesthesiology, Shaanxi Provincial People’s Hospital, Xi’an, China
| | - Xi Yao
- Department of Anesthesiology, Shaanxi Provincial People’s Hospital, Xi’an, China
| | - Yikang Zhao
- Department of Anesthesiology, Shaanxi Provincial People’s Hospital, Xi’an, China
| | - Bo Yao
- Department of Anesthesiology, Shaanxi Provincial People’s Hospital, Xi’an, China
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10
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Liang MQ, Wang FF, Li Q, Lei X, Chen Y, Hu N. LncRNA SNHG3 Promotes Sevoflurane-Induced Neuronal Injury by Activating NLRP3 via NEK7. Neurochem Res 2023:10.1007/s11064-023-03939-3. [PMID: 37093343 DOI: 10.1007/s11064-023-03939-3] [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: 05/26/2022] [Revised: 01/29/2023] [Accepted: 01/31/2023] [Indexed: 04/25/2023]
Abstract
BACKGROUND Early exposure to sevoflurane may cause brain tissue degeneration; however, the mechanism involved in this process has not been explored. In this study, we investigated the role of long non-coding RNA small nucleolar RNA host gene 3 (lncRNA SNHG3) in sevoflurane-induced neuronal injury. METHODS The injury models of HT22 and primary cultures of neurons were constructed using sevoflurane treatment. The WST-8 reduction was detected by CCK-8 assay, the level of inflammatory factors was detected by enzyme-linked immunosorbent assay (ELISA), and cell pyroptosis was detected by flow cytometry. The expression of genes and proteins was detected by qRT-PCR and Western blot, respectively. The level of β-tubulin III in primary cultures of hippocampal neurons was analyzed by immunofluorescence. The relationship among SNHG3, PTBP1 and NEK7 was confirmed by RIP assay. RESULTS The expression of SNHG3 and NEK7 were enhanced in sevoflurane-treated HT22 cells. Sevoflurane inhibited the WST-8 reduction in a concentration-dependent manner, promoted the pyroptosis, and increased pyroptosis-related protein expression. SNHG3 knockdown significantly inhibited sevoflurane-induced pyroptosis and inflammatory injury in HT22 cells and primary cultures of neurons. Furthermore, SNHG3 regulated NEK7 expression by binding to PTBP1. NEK7 knockdown reversed the decrease in WST-8 reduction, inhibited pyroptosis, and decreased the release of inflammatory factors and pyroptosis-related protein expression by inactivation of NLRP3 signaling in sevoflurane-induced HT22 cells. Moreover, NEK7 overexpression attenuated the effect of SNHG3 knockdown on neuronal pyroptosis and inflammation injury. CONCLUSION Downregulation of SNHG3 attenuates sevoflurane-induced neuronal inflammation and pyroptosis by mediating the NEK7/NLRP3 axis, suggesting that SNHG3 could be a potential target gene for neuronal injury.
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Affiliation(s)
- Meng-Qiu Liang
- Department of Anesthesiology, The Third People's Hospital of Chengdu, Southwest Jiao Tong University, Chengdu, 610031, Sichuan Province, P.R. China
| | - Feng-Feng Wang
- Department of Anesthesiology, Wuhan Red Cross Hospital, Wuhan, 430015, Hubei Province, P.R. China
| | - Qiang Li
- Department of Anesthesiology, The Third People's Hospital of Chengdu, Southwest Jiao Tong University, Chengdu, 610031, Sichuan Province, P.R. China
| | - Xue Lei
- Department of Anesthesiology, The Third People's Hospital of Chengdu, Southwest Jiao Tong University, Chengdu, 610031, Sichuan Province, P.R. China
| | - Yong Chen
- Department of Anesthesiology, The Third People's Hospital of Chengdu, Southwest Jiao Tong University, Chengdu, 610031, Sichuan Province, P.R. China
| | - Na Hu
- Department of Anesthesiology, Union hospital, Tongji Medical College, Huazhong University of Science and Technology, No. 1277 Jiefang Avenue, Wuhan, 430022, Hubei Province, P.R. China.
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11
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Wang W, Zhao B, Gao W, Song W, Hou J, Zhang L, Xia Z. Inhibition of PINK1-Mediated Mitophagy Contributes to Postoperative Cognitive Dysfunction through Activation of Caspase-3/GSDME-Dependent Pyroptosis. ACS Chem Neurosci 2023; 14:1249-1260. [PMID: 36946264 DOI: 10.1021/acschemneuro.2c00691] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/23/2023] Open
Abstract
PTEN-induced kinase 1 (PINK1)-mediated mitophagy and caspase-1/gasdermin D canonical pyroptosis pathways have been implicated in the pathogenesis of postoperative cognitive dysfunction (POCD). However, gasdermin E (GSDME), another recently identified executioner of pyroptosis that can be specifically cleaved by caspase-3, is highly expressed in the brain and neurons. This study aimed to ascertain whether PINK1-dependent mitophagy governs postoperative cognitive capacity through caspase-3/GSDME. Twelve month old male Sprague-Dawley rats underwent exploratory laparotomy under isoflurane anesthesia. Lipopolysaccharide (LPS)-primed SH-SY5Y cells were used to mimic postsurgical neuroinflammation. For the interventional study, rats were administered with adeno-associated virus serotype 9 (AAV9)-mediated silencing of Pink1 and/or caspase-3 inhibitor Ac-DEVD-CHO (Ac-DC). SH-SY5Y cells were treated with siPINK1 and/or Ac-DC. Cognitive performance was assessed using the Morris water maze test. The mitophagy- and pyroptosis-related parameters were determined in the hippocampus and SH-SY5Y cells. Anesthesia/surgery and LPS caused defective PINK1-mediated mitophagy and activation of caspase-3/GSDME-dependent pyroptosis. AAV-9 mediated Pink1 overexpression mitigated cognitive impairment and caspase-3/GSDME-dependent pyroptosis. Conversely, inhibition of PINK1 aggravates POCD and overactivates neuronal pyroptosis. These abnormalities were rescued by Ac-DC treatment. Collectively, PINK1-mediated mitophagy regulates anesthesia and surgery-induced cognitive impairment by negatively affecting the caspase-3/GSDME pyroptosis pathway, which provides a promising therapeutic target for POCD.
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Affiliation(s)
- Wei Wang
- Department of Anesthesiology, Renmin Hospital of Wuhan University, Wuhan 430060 Hubei, China
| | - Bo Zhao
- Department of Anesthesiology, Renmin Hospital of Wuhan University, Wuhan 430060 Hubei, China
| | - Wenwei Gao
- Department of Critical Care Medicine, Renmin Hospital of Wuhan University, Wuhan 430060 Hubei, China
| | - Wenqin Song
- Department of Anesthesiology, Renmin Hospital of Wuhan University, Wuhan 430060 Hubei, China
| | - Jiabao Hou
- Department of Anesthesiology, Renmin Hospital of Wuhan University, Wuhan 430060 Hubei, China
| | - Lei Zhang
- Department of Anesthesiology, Renmin Hospital of Wuhan University, Wuhan 430060 Hubei, China
| | - Zhongyuan Xia
- Department of Anesthesiology, Renmin Hospital of Wuhan University, Wuhan 430060 Hubei, China
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12
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Hsp22 pretreatment protection against LPS-induced hippocampal injury by alleviating neuroinflammation and apoptosis by regulating the NLRP3/Caspase1/IL-1β signaling pathway in mice. Aging (Albany NY) 2023; 15:1977-2004. [PMID: 36934348 PMCID: PMC10085591 DOI: 10.18632/aging.204586] [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: 09/20/2022] [Accepted: 03/01/2023] [Indexed: 03/19/2023]
Abstract
Neuroinflammation is an important reason for the occurrence and development of cognitive impairment. The Lentiviral vector Hsp22 was constructed for intracerebroventricular injection pretreatment, LPS was used to induce the cognitive impairment model in mice, and the Morris water maze was used to examine the changes in cognitive behavior in mice. LPS was used to induce BV-2 microglial cells, and plasmid pretreatment was used to overexpress Hsp22. HE staining, Nissl staining, immunohistochemistry, immunofluorescence, ELISA and protein blotting were used to examine microglial activation, changes in inflammatory factors, changes in pathway proteins and apoptosis. The results showed that LPS induced microglial expression of NLRP3/Caspase-1/IL-1β signaling pathway protein Iba1, and the inflammatory protein and inflammatory factors IL-1β, IL-6 and TNF-α, the expression of Bax increased significantly, Bcl2 expression decreased, and the learning and memory abilities of mice decreased significantly. Preconditioning with the Hsp22-overexpressing lentivirus attenuated LPS-induced activation of hippocampal microglia, the expression of inflammatory factors and pathway proteins, and apoptosis, and improved cognitive impairment in mice. In addition, plasmid-mediated Hsp22 overexpression reversed LPS-induced inflammation. These findings suggest that Hsp22 overexpression is a promising method for the treatment of cognitive impairment.
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13
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Prolonged anesthesia induces neuroinflammation and complement-mediated microglial synaptic elimination involved in neurocognitive dysfunction and anxiety-like behaviors. BMC Med 2023; 21:7. [PMID: 36600274 PMCID: PMC9814183 DOI: 10.1186/s12916-022-02705-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Accepted: 12/12/2022] [Indexed: 01/06/2023] Open
Abstract
BACKGROUND Perioperative neurocognitive disorders (PND) with a high incidence frequently occur in elderly surgical patients closely associated with prolonged anesthesia-induced neurotoxicity. The neuromorphopathological underpinnings of anesthesia-induced neurotoxicity have remained elusive. METHODS Prolonged anesthesia with sevoflurane was used to establish the sevoflurane-induced neurotoxicity (SIN) animal model. Morris water maze, elevated plus maze, and open field test were employed to track SIN rats' cognitive behavior and anxiety-like behaviors. We investigated the neuropathological basis of SIN through techniques such as transcriptomic, electrophysiology, molecular biology, scanning electron microscope, Golgi staining, TUNEL assay, and morphological analysis. Our work further clarifies the pathological mechanism of SIN by depleting microglia, inhibiting neuroinflammation, and C1q neutralization. RESULTS This study shows that prolonged anesthesia triggers activation of the NF-κB inflammatory pathway, neuroinflammation, inhibition of neuronal excitability, cognitive dysfunction, and anxiety-like behaviors. RNA sequencing found that genes of different types of synapses were downregulated after prolonged anesthesia. Microglial migration, activation, and phagocytosis were enhanced. Microglial morphological alterations were also observed. C1qa, the initiator of the complement cascade, and C3 were increased, and C1qa tagging synapses were also elevated. Then, we found that the "Eat Me" complement pathway mediated microglial synaptic engulfment in the hippocampus after prolonged anesthesia. Afterward, synapses were remarkably lost in the hippocampus. Furthermore, dendritic spines were reduced, and their genes were also downregulated. Depleting microglia ameliorated the activation of neuroinflammation and complement and rescued synaptic loss, cognitive dysfunction, and anxiety-like behaviors. When neuroinflammatory inhibition or C1q neutralization occurred, complement was also decreased, and synaptic elimination was interrupted. CONCLUSIONS These findings illustrated that prolonged anesthesia triggered neuroinflammation and complement-mediated microglial synaptic engulfment that pathologically caused synaptic elimination in SIN. We have demonstrated the neuromorphopathological underpinnings of SIN, which have direct therapeutic relevance for PND patients.
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14
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Li J, Li L, He J, Xu J, Bao F. The NLRP3 inflammasome is a potential mechanism and therapeutic target for perioperative neurocognitive disorders. Front Aging Neurosci 2023; 14:1072003. [PMID: 36688154 PMCID: PMC9845955 DOI: 10.3389/fnagi.2022.1072003] [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: 10/17/2022] [Accepted: 11/21/2022] [Indexed: 01/06/2023] Open
Abstract
Perioperative neurocognitive disorders (PNDs) are frequent complications associated with cognitive impairment during the perioperative period, including acute postoperative delirium and long-lasting postoperative cognitive dysfunction. There are some risk factors for PNDs, such as age, surgical trauma, anesthetics, and the health of the patient, but the underlying mechanism has not been fully elucidated. Pyroptosis is a form of programmed cell death that is mediated by the gasdermin protein and is involved in cognitive dysfunction disorders. The canonical pathway induced by nucleotide oligomerization domain (NOD)-, leucine-rich repeat (LRR)- and pyrin domain-containing protein 3 (NLRP3) inflammasomes contributes to PNDs, which suggests that targeting NLRP3 inflammasomes may be an effective strategy for the treatment of PNDs. Therefore, inhibiting upstream activators and blocking the assembly of the NLRP3 inflammasome may attenuate PNDs. The present review summarizes recent studies and systematically describes the pathogenesis of NLRP3 activation and regulation and potential therapeutics targeting NLRP3 inflammasomes in PNDs patients.
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Affiliation(s)
- Jiayue Li
- Department of Anesthesiology, The Fourth Affiliated Hospital, International Institutes of Medicine, Zhejiang University School of Medicine, Yiwu, China
| | - Li Li
- Department of Anesthesiology, The Fourth Affiliated Hospital, International Institutes of Medicine, Zhejiang University School of Medicine, Yiwu, China
| | - Jiannan He
- Department of Anesthesiology, The Fourth Affiliated Hospital, International Institutes of Medicine, Zhejiang University School of Medicine, Yiwu, China
| | - Jianhong Xu
- Department of Anesthesiology, The Fourth Affiliated Hospital, International Institutes of Medicine, Zhejiang University School of Medicine, Yiwu, China
| | - Fangping Bao
- Department of Anesthesiology, The Fourth Affiliated Hospital, International Institutes of Medicine, Zhejiang University School of Medicine, Yiwu, China,Department of Anesthesiology, The First Affiliated Hospital Zhejiang University School of Medicine, Hangzhou, China,*Correspondence: Fangping Bao,
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15
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Shen Q, Jiang Y, Jia X, Zhou X, Zhou QH. Amelioratory Effect of Melatonin on Cognition Dysfunction Induced by Sevoflurane Anesthesia in Aged Mice. IRANIAN JOURNAL OF PHARMACEUTICAL RESEARCH : IJPR 2022; 21:e133971. [PMID: 36896324 PMCID: PMC9990511 DOI: 10.5812/ijpr-133971] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/04/2022] [Revised: 12/31/2022] [Accepted: 01/05/2023] [Indexed: 01/26/2023]
Abstract
Background Postoperative cognitive dysfunction (POCD) can be described as a clinical phenomenon characterized by cognitive impairment in patients, particularly elderly patients, after anesthesia and surgery. Researchers have focused on the probable effect of general anesthesia drugs on cognitive functioning status in older adults. Melatonin is an indole-type neuroendocrine hormone with broad biological activity and potent anti-inflammatory, anti-apoptotic, and neuroprotective effects. This study investigated the effects of melatonin on cognitive behavior in aged mice anesthetized with sevoflurane. In addition, melatonin's molecular mechanism was determined. Objectives This study aimed to investigate the mechanisms of melatonin against sevoflurane-induced neurotoxicity. Methods A total of 94 aged C57BL/6J mice were categorized into different groups, namely control (control + melatonin (10 mg/kg)), sevoflurane (sevoflurane + melatonin (10 mg/kg)), sevoflurane + melatonin (10 mg/kg) + phosphatidylinositol 3-kinase (PI3K)/protein kinase B (Akt) inhibitor LY294002 (30 mg/kg), and sevoflurane + melatonin (10 mg/kg) + mammalian target of rapamycin (mTOR) inhibitor (10 mg/kg). The open field and Morris water maze tests were utilized to assess the neuroprotective effects of melatonin on sevoflurane-induced cognitive impairment in aged mice. The expression levels of the apoptosis-linked proteins, PI3K/Akt/mTOR signaling pathway, and pro-inflammatory cytokines in the brain's hippocampus region were determined using the Western blotting technique. The apoptosis of the hippocampal neurons was observed using the hematoxylin and eosin staining technique. Results Neurological deficits in aged, sevoflurane-exposed mice were significantly decreased after melatonin treatment. Mechanistically, melatonin treatment restored sevoflurane-induced down-regulated PI3K/Akt/mTOR expression and significantly attenuated sevoflurane-induced apoptotic cells and neuroinflammation. Conclusions The findings of this study have highlighted the neuroprotective effect of melatonin on sevoflurane-induced cognitive impairment via regulating the PI3K/Akt/mTOR pathway, which might be effective in the clinical treatment of elderly patients with anesthesia-induced POCD.
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Affiliation(s)
- Qihong Shen
- Department of Anesthesiology, Affiliated Hospital of Jiaxing University, Jiaxing, China
| | - Yanyu Jiang
- Department of Anesthesia Medicine, Bengbu Medical College, Bengbu, China
| | - Xiaoyu Jia
- Department of Anesthesiology, Affiliated Hospital of Jiaxing University, Jiaxing, China
| | - Xuyan Zhou
- Department of Anesthesiology, Affiliated Hospital of Jiaxing University, Jiaxing, China
| | - Qing-he Zhou
- Department of Anesthesiology, Affiliated Hospital of Jiaxing University, Jiaxing, China
- Corresponding Author: Department of Anesthesiology, Affiliated Hospital of Jiaxing University, Jiaxing, China.
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16
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Zheng X, Gong T, Tang C, Zhong Y, Shi L, Fang X, Chen D, Zhu Z. Gastrodin improves neuroinflammation-induced cognitive dysfunction in rats by regulating NLRP3 inflammasome. BMC Anesthesiol 2022; 22:371. [PMID: 36456961 PMCID: PMC9714247 DOI: 10.1186/s12871-022-01915-y] [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: 08/03/2022] [Accepted: 11/18/2022] [Indexed: 12/03/2022] Open
Abstract
Neuroinflammation is the main pathological mechanism of cognitive dysfunction caused by neurodegenerative diseases, and effective preventive and therapeutic measures are not available. We predicted the key targets of gastrodin's effects upon neuroinflammation through Network Pharmacology and molecular docking. Then the predicted targets were used to study how gastrodin affected cognitive dysfunction triggered by lipopolysaccharide-induced neuroinflammation in rats and its mechanisms. Three-month-old male rats were intraperitoneally injected with lipopolysaccharide for 3 days (d), 7 d and 14 d respectively. Gastrodin improved learning and memory ability of rats with neuroinflammation. Lipopolysaccharide enhanced the levels of pro-inflammatory cytokines, such as TNF-α, IL-1β and IL-6, in rat hippocampus, which could be reversed by gastrodin. Gastrodin also inhibited the activation of microglia. Our findings suggested that gastrodin exerted neuroprotective effects in rats with neuroinflammation by impacting the TLR4-NF-kB-NLRP3 pathway. Therefore, gastrodin may be a potential therapeutic agent for neuroinflammation-induced cognitive dysfunction.
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Affiliation(s)
- Xue Zheng
- grid.263761.70000 0001 0198 0694Suzhou Medical College of Soochow University, Suzhou, 215000 Jiangsu Province China ,Department of Anesthesiology, Zunyi Maternal And Child Health Care Hospital, 287#, Zhonghua Road, Zunyi, 563000 Guizhou Province China
| | - Taowu Gong
- grid.413390.c0000 0004 1757 6938Department of Anesthesiology, Affiliated Hospital of Zunyi Medical University, 149#, Dalian Road, Zunyi, 563000 Guizhou Province China
| | - Chunchun Tang
- grid.413390.c0000 0004 1757 6938Department of Anesthesiology, Affiliated Hospital of Zunyi Medical University, 149#, Dalian Road, Zunyi, 563000 Guizhou Province China
| | - Yuanping Zhong
- grid.413390.c0000 0004 1757 6938Department of Anesthesiology, Affiliated Hospital of Zunyi Medical University, 149#, Dalian Road, Zunyi, 563000 Guizhou Province China
| | - Lu Shi
- grid.413390.c0000 0004 1757 6938Department of Anesthesiology, Affiliated Hospital of Zunyi Medical University, 149#, Dalian Road, Zunyi, 563000 Guizhou Province China
| | - Xu Fang
- grid.413390.c0000 0004 1757 6938Department of Anesthesiology, Affiliated Hospital of Zunyi Medical University, 149#, Dalian Road, Zunyi, 563000 Guizhou Province China
| | - Dongqin Chen
- grid.413390.c0000 0004 1757 6938Department of Anesthesiology, Affiliated Hospital of Zunyi Medical University, 149#, Dalian Road, Zunyi, 563000 Guizhou Province China
| | - Zhaoqiong Zhu
- grid.413390.c0000 0004 1757 6938Department of Anesthesiology, Affiliated Hospital of Zunyi Medical University, 149#, Dalian Road, Zunyi, 563000 Guizhou Province China
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Anesthetic sevoflurane simultaneously regulates autophagic flux and pyroptotic cell death-associated cellular inflammation in the hypoxic/re-oxygenated cardiomyocytes: Identification of sevoflurane as putative drug for the treatment of myocardial ischemia-reperfusion injury. Eur J Pharmacol 2022; 936:175363. [DOI: 10.1016/j.ejphar.2022.175363] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2022] [Revised: 10/24/2022] [Accepted: 10/31/2022] [Indexed: 11/06/2022]
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Yang YS, He SL, Chen WC, Wang CM, Huang QM, Shi YC, Lin S, He HF. Recent progress on the role of non-coding RNA in postoperative cognitive dysfunction. Front Cell Neurosci 2022; 16:1024475. [PMID: 36313620 PMCID: PMC9608859 DOI: 10.3389/fncel.2022.1024475] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2022] [Accepted: 09/30/2022] [Indexed: 11/13/2022] Open
Abstract
Postoperative cognitive dysfunction (POCD), especially in elderly patients, is a serious complication characterized by impairment of cognitive and sensory modalities after surgery. The pathogenesis of POCD mainly includes neuroinflammation, neuronal apoptosis, oxidative stress, accumulation of Aβ, and tau hyperphosphorylation; however, the exact mechanism remains unclear. Non-coding RNA (ncRNA) may play an important role in POCD. Some evidence suggests that microRNA, long ncRNA, and circular RNA can regulate POCD-related processes, making them promising biomarkers in POCD diagnosis, treatment, and prognosis. This article reviews the crosstalk between ncRNAs and POCD, and systematically discusses the role of ncRNAs in the pathogenesis and diagnosis of POCD. Additionally, we explored the possible mechanisms of ncRNA-associated POCD, providing new knowledge for developing ncRNA-based treatments for POCD.
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Affiliation(s)
- Yu-Shen Yang
- Department of Anesthesiology, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, China
| | - Shi-Ling He
- Department of Anesthesiology, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, China
| | - Wei-Can Chen
- Department of Anesthesiology, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, China
| | - Cong-Mei Wang
- Department of Anesthesiology, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, China
| | - Qiao-Mei Huang
- Department of Anesthesiology, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, China
| | - Yan-Chuan Shi
- Neuroendocrinology Group, Garvan Institute of Medical Research, Sydney, NSW, Australia
- Faculty of Medicine, UNSW Sydney, Sydney, NSW, Australia
- *Correspondence: Yan-Chuan Shi,
| | - Shu Lin
- Department of Anesthesiology, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, China
- Neuroendocrinology Group, Garvan Institute of Medical Research, Sydney, NSW, Australia
- Centre of Neurological and Metabolic Research, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, China
- Shu Lin,
| | - He-fan He
- Department of Anesthesiology, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, China
- He-fan He,
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Zhu Y, Zhang M, Wang J, Wang Q. Knockdown of UAF1 alleviates sevoflurane-induced cognitive impairment and neurotoxicity in rats by inhibiting pro-inflammatory signaling and oxidative stress. J Toxicol Sci 2022; 47:349-357. [PMID: 36047109 DOI: 10.2131/jts.47.349] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
Evidence has shown that suppression of the activation of NLRP3 inflammasome could ameliorate surgery/sevoflurane (SEV)-induced post-operative cognitive dysfunction (POCD). However, the underlying mechanisms remain unclear. UAF1 acts as a binding partner of USP1, which inhibits the ubiquitination-mediated degradation of NLRP3, indicating that UAF1 may be implicated in POCD through regulating the NLRP3 inflammasome. Here, we studied the role of UAF1/NLRP3 in SEV-induced cognitive impairment and neurotoxicity in rats. Neonatal rats were randomly divided into control, SEV, SEV+AAV-shNC and SEV+AAV-shUAF1 (UAF1-downregulated) groups. Morris water maze (MWM) test was applied to assess cognitive impairment. TUNEL staining, qRT-PCR and ELISA were used to assess the apoptosis and inflammation markers, respectively. The levels of superoxide dismutase (SOD), catalase (CAT) and malondialdehyde (MDA) were quantified to determine oxidative stress. The results showed that SEV treatment led to significant cognitive impairment, increased apoptosis in hippocampal tissues, upregulation of MDA and inflammatory factors (TNF-α, IL-1β, IL-18), as well as a decrease in SOD and CAT levels. All of the above observations were reversed by UAF1 downregulation. Furthermore, depletion of UAF1 neutralized SEV-mediated increase in p-NLRP3, p-IκBα and p-p65 levels. Altogether, the current study demonstrated that knockdown of UAF1 could alleviate SEV-induced cognitive impairment and neurotoxicity in rats by inhibiting pro-inflammatory signaling and oxidative stress.
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Affiliation(s)
- Yingjun Zhu
- Department of Anesthesiology, The Affiliated Huai'an No.1 People's Hospital of Nanjing Medical University, China
| | - Min Zhang
- Department of Anesthesiology, The Affiliated Huai'an No.1 People's Hospital of Nanjing Medical University, China
| | - Jiayu Wang
- Department of Anesthesiology, The Affiliated Huai'an No.1 People's Hospital of Nanjing Medical University, China
| | - Qingxiu Wang
- Department of Anesthesiology, The Affiliated Shanghai East Hospital of Tongji University, China
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Protective role of trametenolic acid B against sevoflurane-induced cognitive impairments by its different regulatory modalities of mir-329-3p in neurons and microglia. Mol Med 2022; 28:77. [PMID: 35786376 PMCID: PMC9252036 DOI: 10.1186/s10020-022-00477-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Accepted: 04/16/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Postoperative cognitive dysfunction induced by anesthetics commonly occurs in elderly patients. This study aimed to evaluate the protective role of trametenolic acid B (TAB) in sevoflurane-induced cognitive impairments, and explore the underlying mechanisms. METHODS Animal and cell experiments were performed in rats, differentiated PC12 and HAPI cells by exposing to 2% sevoflurane for 5 h. Different concentration (20, 40 and 80 µg/mL) of TAB was administrated in rats and cells. The cognitive function of rats was evaluated using the Morris water maze test and fear conditioning test. The cell proliferation and apoptosis were investigated using a CCK-8 assay and the flow cytometry. Pro-inflammatory cytokines in microglia were measured using ELISA kits. A miRNA microarray assay was conducted to screen differentially expressed miRNAs by TAB in both PC12 and HAPI cells. The luciferase reporter assay and western blot assay were used to assess the E2F1/CCNA2 and NF-κB pathways. RESULTS TAB significantly alleviated sevoflurane-induced cognitive impairments in rats, improved PC12 cell viability, and inhibited the neuroinflammation of HAPI cells. miR-329-3p was downregulated in PC12 cells but upregulated in HAPI cells by TAB treatment, which mediated the effects of TAB on neurotoxicity and neuroinflammation. E2F1 and NF-κB P65 were two targets of miR-329-3p, and the E2F1/CCNA2 and NF-κB pathways were inhibited by miR-329-3p in PC12 and HAPI cells, respectively. CONCLUSIONS All the results provide evidence for the protective role of TAB against sevoflurane-induced cognitive impairments, which was achieved by alleviating neurotoxicity and neuroinflammation through differentially regulating miR-329-3p in neurons and microglia.
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Zhang Q, Li Y, Yu J, Yin C, Guo J, Zhao J, Wang Q. TLR3 deletion inhibits programmed necrosis of brain cells in neonatal mice with sevoflurane-induced cognitive dysfunction. Aging (Albany NY) 2022; 14:4714-4727. [PMID: 35666713 PMCID: PMC9217712 DOI: 10.18632/aging.204092] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Accepted: 05/07/2022] [Indexed: 11/25/2022]
Abstract
This research aimed to explore the influence of TLR deletion on sevoflurane-induced postoperative cognitive dysfunction in neonatal mice. Herein, WT and TLR3 KO neonatal mice, each with 24, were randomly divided into control group, sevoflurane group, and TLR3−/−+sevoflurane group. The hippocampal neurons of WT, TLR3 KO and RIP3 KO neonatal mice in C group, SEV group, TLR3−/−+SEV group and RIP3−/−+SEV group were extracted for in vitro experiments. The results revealed the degeneration and necrosis of nerve cells in SEV group. Microscopic findings indicated that nerve cells showed shrinkage and nuclear hyperchromatism, along with lessening or even disappearance of nuclei and enlargement of cell spaces, and apoptotic cells in the brain tissues were evidently increased. Compared with SEV group, TLR3−/−+SEV group displayed reductions in these phenomena. Additionally, SEV group showed the reduced SHP2 expression and the increased expressions of proteins associated with TLR signaling pathway and apoptosis. Furthermore, there were no obvious differences in the expressions of such proteins in hippocampal neurons between RIP3−/−+SEV and TLR3−/−+SEV groups. The results confirmed that inhibiting RIP3 phosphorylation and suppressing TLR3 expressions exerted the same influence on the expressions of these proteins in the hippocampus of neonatal mice with sevoflurane-induced cognitive dysfunction. Based on these, it is speculated that TLR3 influences neonatal mice with sevoflurane-induced cognitive dysfunction probably by regulating RIP3 phosphorylation.
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Affiliation(s)
- Qi Zhang
- Department of Anesthesiology, The Third Hospital of Hebei Medical University, Shijiazhuang 050051, Hebei, China.,Department of Anesthesiology, Children's Hospital of Hebei Province Affiliated to Hebei Medical University, Shijiazhuang 050031, Hebei, China
| | - Yanan Li
- Department of Anesthesiology, The Third Hospital of Hebei Medical University, Shijiazhuang 050051, Hebei, China
| | - Jiaxu Yu
- Department of Anesthesiology, The Third Hospital of Hebei Medical University, Shijiazhuang 050051, Hebei, China
| | - Chunping Yin
- Department of Anesthesiology, The Third Hospital of Hebei Medical University, Shijiazhuang 050051, Hebei, China
| | - Junfei Guo
- Department of Orthopedics, The Third Hospital of Hebei Medical University, Shijiazhuang 050051, Hebei, China
| | - Juan Zhao
- Experimental Teaching Center of Hebei Medical University, Shijiazhuang 050017, Hebei, China
| | - Qiujun Wang
- Department of Anesthesiology, The Third Hospital of Hebei Medical University, Shijiazhuang 050051, Hebei, China
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22
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Yi YS. Potential benefits of ginseng against COVID-19 by targeting inflammasomes. J Ginseng Res 2022; 46:722-730. [PMID: 35399195 PMCID: PMC8979607 DOI: 10.1016/j.jgr.2022.03.008] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2022] [Revised: 03/21/2022] [Accepted: 03/31/2022] [Indexed: 12/19/2022] Open
Abstract
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is the pathogenic virus that causes coronavirus disease 2019 (COVID-19), with major symptoms including hyper-inflammation and cytokine storm, which consequently impairs the respiratory system and multiple organs, or even cause death. SARS-CoV-2 activates inflammasomes and inflammasome-mediated inflammatory signaling pathways, which are key determinants of hyperinflammation and cytokine storm in COVID-19 patients. Additionally, SARS-CoV-2 inhibits inflammasome activation to evade the host's antiviral immunity. Therefore, regulating inflammasome initiation has received increasing attention as a preventive measure in COVID-19 patients. Ginseng and its major active constituents, ginsenosides and saponins, improve the immune system and exert anti-inflammatory effects by targeting inflammasome stimulation. Therefore, this review discussed the potential preventive and therapeutic roles of ginseng in COVID-19 based on its regulatory role in inflammasome initiation and the host's antiviral immunity.
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Affiliation(s)
- Young-Su Yi
- Department of Life Sciences, Kyonggi University, 154-42 Gwanggyosan-ro, Yeongtong-gu, Suwon, 16227, Republic of Korea.
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23
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Bai C, Zhu Y, Dong Q, Zhang Y. Chronic intermittent hypoxia induces the pyroptosis of renal tubular epithelial cells by activating the NLRP3 inflammasome. Bioengineered 2022; 13:7528-7540. [PMID: 35263214 PMCID: PMC8973594 DOI: 10.1080/21655979.2022.2047394] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
Obstructive sleep apnea syndrome (OSAS) is a respiratory disorder and chronic intermittent hypoxia (CIH) is an important pathological characteristic of OSAS. Injuries on renal tubular epithelial cells were observed under the condition of CIH. Pyroptosis is a programmed mode of cell death following cell apoptosis and cell necrosis, which is mediated by NLRP3 signaling. The present study aims to investigate the effects of CIH on the pyroptosis of renal tubular epithelial cells and the underlying mechanism. Firstly, CIH was induced in two renal tubular epithelial cell lines, HK-2 cells and TCMK-1 cells. As the aggravation of hypoxia, an increasing trend of elevated apoptotic rate was observed in HK-2 cells and TCMK-1 cells, accompanied by the excessive release of ROS and LDH, and upregulation of NLRP3. Subsequently, the CIH model was established on rats. The pathological analysis results indicated that in CIH rats, the glomerular bottom membrane and mesangium were slightly thickened and edema was observed in the renal tubule epithelium. More serious injury was observed in the moderate intermittent hypoxia group. The expression level of IL-1β and IL-18 was promoted as the aggravation of hypoxia, accompanied by the elevated production of LDH and ROS. The expression level of cleaved Caspase-1, Caspase-1, GSDMD, TLR4, MyD88, NF-κB, p-NF-κB, and NLRP3 was found significantly upregulated as the aggravation of hypoxia. Lastly, the pathological changes in rats induced by CIH were dramatically abolished by MCC950, a specific inhibitor of NLRP3. Collectively, CIH triggered the pyroptosis of renal tubular epithelial cells by activating the NLRP3 inflammasome.
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Affiliation(s)
- Chunyan Bai
- Division of Geriatrics, Xiangya Second Hospital of Central South University, Changsha City, Hunan Province, China
| | - Yingfei Zhu
- Division of International Medical Services, Xiangya Second Hospital of Central South University, Changsha City, Hunan Province, China
| | - Qiaoliang Dong
- Division of International Medical Services, Xiangya Second Hospital of Central South University, Changsha City, Hunan Province, China
| | - Yuwei Zhang
- Division of International Medical Services, Xiangya Second Hospital of Central South University, Changsha City, Hunan Province, China
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24
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Jung EM, Lee GS. Korean Red Ginseng, a regulator of NLRP3 inflammasome, in the COVID-19 pandemic. J Ginseng Res 2022; 46:331-336. [PMID: 35194373 PMCID: PMC8851744 DOI: 10.1016/j.jgr.2022.02.003] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Revised: 02/10/2022] [Accepted: 02/14/2022] [Indexed: 12/23/2022] Open
Abstract
Coronavirus disease 2019 (COVID-19) exhibits various symptoms, ranging from asymptomatic to severe pneumonia or death. The major features of patients in severe COVID-19 are the dysregulation of cytokine secretion, pneumonia, and acute lung injury. Consequently, it leads to acute respiratory distress syndrome, disseminated intravascular coagulation, multiple organ failure, and death. Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), the causative virus of COVID-19, influences nucleotide-binding oligomerization domain, leucine-rich repeat, and pyrin domain containing 3 (NLRP3), the sensor of inflammasomes, directly or indirectly, culminating in the assembly of NLRP3 inflammasome and activation of inflammatory caspases, which induce the inflammatory disruption in severe COVID-19. Accordingly, the target therapeutics for inflammasome has attracted attention as a treatment for COVID-19. Korean Red Ginseng (KRG) inhibits several inflammatory responses, including the NLRP3 inflammasome signaling. This review discusses the role of KRG in the treatment and prevention of COVID-19 based on its anti-NLRP3 inflammasome efficacy.
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25
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Sun L, Yong Y, Wei P, Wang Y, Li H, Zhou Y, Ruan W, Li X, Song J. Electroacupuncture ameliorates postoperative cognitive dysfunction and associated neuroinflammation via NLRP3 signal inhibition in aged mice. CNS Neurosci Ther 2021; 28:390-400. [PMID: 34951130 PMCID: PMC8841296 DOI: 10.1111/cns.13784] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2021] [Revised: 11/28/2021] [Accepted: 11/29/2021] [Indexed: 12/19/2022] Open
Abstract
Background Postoperative cognitive dysfunction (POCD) is associated with worsened prognosis especially in aged population. Clinical and animal studies suggested that electroacupuncture (EA) could improve POCD. However, the underlying mechanisms especially EA’s regulatory role of inflammasomes remain unclear. Methods The model of POCD was established by partial hepatectomy surgery in 18‐month mice with or without postoperative EA treatment to the Baihui acupoint (GV20) for 7 days. Cognitive functions were assessed by Morris water maze test, and proinflammatory cytokines IL‐1β and IL‐6 and microglia activity were assayed by qPCR, ELISA, or immunohistochemistry. Tight junction proteins, NLRP3 inflammasome and downstream proteins, and NF‐κB pathway proteins were evaluated by western blotting. Results EA markedly preserved cognitive dysfunctions in POCD mice, associated with the inhibition of neuroinflammation as evidenced by reduced microglial activation and decreased IL‐1β and IL‐6 levels in brain tissue. EA also preserved hippocampal neurons and tight junction proteins ZO‐1 and claudin 5. Mechanistically, the activation of NLRP3 inflammasome and NF‐κB was inhibited by EA, while NLRP3 activation abolished EA’s treatment effects on cognitive function. Conclusion EA alleviates POCD‐mediated cognitive dysfunction associated with ameliorated neuroinflammation. Mechanistically, EA’s treatment effects are dependent on NLRP3 inhibition.
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Affiliation(s)
- Long Sun
- Department of Anesthesiology, Shuguang Hospital Affiliated with Shanghai University of Traditional Chinese Medicine, Shanghai, P.R. China
| | - Yue Yong
- Research Institute of Acupuncture Anesthesia, Shuguang Hospital Affiliated with Shanghai University of Traditional Chinese Medicine, Shanghai, P.R. China
| | - Pan Wei
- Department of Anesthesiology, Shuguang Hospital Affiliated with Shanghai University of Traditional Chinese Medicine, Shanghai, P.R. China
| | - Yongqiang Wang
- Department of Anesthesiology, Shuguang Hospital Affiliated with Shanghai University of Traditional Chinese Medicine, Shanghai, P.R. China
| | - He Li
- Department of Anesthesiology, Shuguang Hospital Affiliated with Shanghai University of Traditional Chinese Medicine, Shanghai, P.R. China
| | - Yalan Zhou
- Department of Anesthesiology, Shuguang Hospital Affiliated with Shanghai University of Traditional Chinese Medicine, Shanghai, P.R. China
| | - Wenqing Ruan
- Department of Anesthesiology, Shuguang Hospital Affiliated with Shanghai University of Traditional Chinese Medicine, Shanghai, P.R. China
| | - Xing Li
- Department of Anesthesiology, Shuguang Hospital Affiliated with Shanghai University of Traditional Chinese Medicine, Shanghai, P.R. China
| | - Jiangang Song
- Department of Anesthesiology, Shuguang Hospital Affiliated with Shanghai University of Traditional Chinese Medicine, Shanghai, P.R. China
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26
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Li G, Wang Y, Cao F, Wang D, Zhou L, Jin Y. Sevoflurane Promotes Neurodegeneration Through Inflammasome Formation in APP/PS1 Mice. Front Neurosci 2021; 15:647136. [PMID: 34924922 PMCID: PMC8678053 DOI: 10.3389/fnins.2021.647136] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2020] [Accepted: 10/22/2021] [Indexed: 12/20/2022] Open
Abstract
Sevoflurane (SEVO) is a highly fluorinated methyl isopropyl ether used as an inhalational anesthetic for general anesthesia. Previous studies have shown that SEVO may induce impaired memory and recognition ability and may be associated with neurodegenerative disease, e.g., Alzheimer’s disease (AD). However, the underlying mechanism remains unknown. Here, we used a mouse AD model, APP/PS1, to study the effects of SEVO on neurodegeneration occurring in AD. We found that SEVO exposure significantly impaired the spatial reference memory, sensorimotor, and cognitive function of the mice. Mechanistically, we found that SEVO induced formation of NOD-, LRR- and pyrin domain-containing protein 3 (NLRP3) inflammasome and its downstream caspase 1-mediated production of IL-1β and IL-18, which subsequently deactivated brain-derived neurotrophic factor (BDNF) to promote neurodegeneration. Together, these data suggest that NLRP3 inflammasome is essential for SEVO-induced AD.
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Affiliation(s)
- Guohua Li
- Department of Anesthesiology, The Second Affiliated Hospital of Shandong First Medical University, Tai'an, China
| | - Yu Wang
- Department of Anesthesiology, The Second Affiliated Hospital of Shandong First Medical University, Tai'an, China
| | - Fang Cao
- Department of Orthopedics, The Second Affiliated Hospital of Shandong First Medical University, Tai'an, China
| | - Dawei Wang
- Department of Obstetrics, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Limin Zhou
- Department of Anesthesiology, The Second Affiliated Hospital of Shandong First Medical University, Tai'an, China
| | - Yanwu Jin
- Department of Anesthesiology, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
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27
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Yi YS. New mechanisms of ginseng saponin-mediated anti-inflammatory action via targeting canonical inflammasome signaling pathways. JOURNAL OF ETHNOPHARMACOLOGY 2021; 278:114292. [PMID: 34089812 DOI: 10.1016/j.jep.2021.114292] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Revised: 05/14/2021] [Accepted: 05/31/2021] [Indexed: 06/12/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Ginseng is an ethnopharmacological herbal plant in Asian countries, particularly in Korea, China, and Japan. Ginseng saponins, including ginsenosides, are major active components in ginseng and have been demonstrated to have numerous pharmacological effects on various human diseases. AIM OF THE REVIEW Many previous studies investigating the anti-inflammatory effect of ginseng saponins have mostly focused on the 'priming' step rather than the 'triggering' step. This review aims to discuss the studies investigating an inhibitory role of ginseng saponins in inflammasome activation of the triggering step. MATERIALS AND METHODS The literature was explored using the search strings, such as "ginseng saponins and inflammasomes" and "ginsenosides and inflammasomes" in several resources, such as PubMed, Google Scholar, and Scopus databases. RESULTS Various ginseng saponins of Panax ginseng, Panax japonicas, and Panax quinquefolius alleviated inflammatory responses and diseases by inhibiting the nucleotide-binding oligomerization domain-like receptor (NLR) P3 (NLRP3) inflammasome activation. Also, ginseng saponin, Rg1 of Panax ginseng alleviated neuroinflammation and diseases by inhibiting NLRP1 inflammasome activation. Finally, ginseng saponins, Rh1 and Rg3 in Korea red ginseng (KRG) of Panax ginseng ameliorated sepsis by inhibiting absent in melanoma 2 (AIM2) inflammasome activation. CONCLUSION The studies discussed in this review provide insight into the new paradigm of the ginseng saponins as the promising anti-inflammatory agents that could be ethnopharmacologically used to prevent and treat inflammatory and inflammation-induced disorders via targeting inflammasomes.
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Affiliation(s)
- Young-Su Yi
- Department of Life Sciences, Kyonggi University, Suwon, 16227, Republic of Korea.
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28
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Ge X, Zuo Y, Xie J, Li X, Li Y, Thirupathi A, Yu P, Gao G, Zhou C, Chang Y, Shi Z. A new mechanism of POCD caused by sevoflurane in mice: cognitive impairment induced by cross-dysfunction of iron and glucose metabolism. Aging (Albany NY) 2021; 13:22375-22389. [PMID: 34547719 PMCID: PMC8507282 DOI: 10.18632/aging.203544] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Accepted: 07/13/2021] [Indexed: 12/16/2022]
Abstract
Sevoflurane (Sev) is a commonly used anesthetic in hospitals that can cause neurotoxicity. Postoperative cognitive dysfunction (POCD) is a common clinical problem induced by some anesthetics. However, the exact mechanism of neurotoxicity induced by Sev is unclear. Here we studied a new mechanism of POCD induced by Sev. We treated 15-month-old mice with 2% Sev for 6 hours, and we had found that Sev causes POCD. Using isobaric tags for relative and absolute quantitation (iTRAQ), we found that the transporter and the metabolism of carbohydrates and inorganic ions were involved in the cognitive impairment induced by Sev. Using synchrotron radiation micro-X-ray fluorescence (μ-XRF), we showed that Sev caused the iron overload in the brain of 15-month-old mice. Subsequently, excessive iron led to oxidative stress and impaired mitochondrial function that further led to glucose metabolism disorder and reduced ATP production by regulating the expression of key enzyme genes or proteins including G6Pase, Pck1, and Cs. Meanwhile, Sev also inhibited the oxygen consumption rate and glucose absorption by downregulating the expression of glucose transporter 1 in cerebral vascular endothelial cells. The cross-dysfunction of iron and glucose metabolism caused the apoptosis in the cortex and hippocampus through Bcl2/Bax pathway. In conclusion, the data here showed a new mechanism that Sev caused apoptosis by cross-dysregulation of iron and glucose metabolism and induced energy stress in mice. Maintaining iron and glucose metabolism homeostasis may play an important role in cognitive impairment induced by Sev.
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Affiliation(s)
- Xing Ge
- Laboratory of Molecular Iron Metabolism, College of Life Science, Hebei Normal University, Shijiazhuang 050024, Hebei Province, China
| | - Yong Zuo
- Laboratory of Molecular Iron Metabolism, College of Life Science, Hebei Normal University, Shijiazhuang 050024, Hebei Province, China
| | - Jinhong Xie
- Laboratory of Molecular Iron Metabolism, College of Life Science, Hebei Normal University, Shijiazhuang 050024, Hebei Province, China
| | - Xincheng Li
- Laboratory of Molecular Iron Metabolism, College of Life Science, Hebei Normal University, Shijiazhuang 050024, Hebei Province, China
| | - Yan Li
- Laboratory of Molecular Iron Metabolism, College of Life Science, Hebei Normal University, Shijiazhuang 050024, Hebei Province, China
| | - Anand Thirupathi
- Faculty of Sports Science, Ningbo University, Ningbo 315211, Zhejiang Province, China
| | - Peng Yu
- Laboratory of Molecular Iron Metabolism, College of Life Science, Hebei Normal University, Shijiazhuang 050024, Hebei Province, China
| | - Guofen Gao
- Laboratory of Molecular Iron Metabolism, College of Life Science, Hebei Normal University, Shijiazhuang 050024, Hebei Province, China
| | - Changhao Zhou
- The First Hospital of Hebei Medical University, Shijiazhuang 050000, Hebei Province, China
| | - Yanzhong Chang
- Laboratory of Molecular Iron Metabolism, College of Life Science, Hebei Normal University, Shijiazhuang 050024, Hebei Province, China
| | - Zhenhua Shi
- Laboratory of Molecular Iron Metabolism, College of Life Science, Hebei Normal University, Shijiazhuang 050024, Hebei Province, China
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29
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Wang CM, Chen WC, Zhang Y, Lin S, He HF. Update on the Mechanism and Treatment of Sevoflurane-Induced Postoperative Cognitive Dysfunction. Front Aging Neurosci 2021; 13:702231. [PMID: 34305576 PMCID: PMC8296910 DOI: 10.3389/fnagi.2021.702231] [Citation(s) in RCA: 45] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Accepted: 06/08/2021] [Indexed: 12/14/2022] Open
Abstract
Sevoflurane is one of the most widely used anesthetics for the induction and maintenance of general anesthesia in surgical patients. Sevoflurane treatment may increase the incidence of postoperative cognitive dysfunction (POCD), and patients with POCD exhibit lower cognitive abilities than before the operation. POCD affects the lives of patients and places an additional burden on patients and their families. Understanding the mechanism of sevoflurane-induced POCD may improve prevention and treatment of POCD. In this paper, we review the diagnosis of POCD, introduce animal models of POCD in clinical research, analyze the possible mechanisms of sevoflurane-induced POCD, and summarize advances in treatment for this condition.
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Affiliation(s)
- Cong-Mei Wang
- Department of Anesthesiology, The Second Affiliated Hospital, Fujian Medical University, Quanzhou, China
| | - Wei-Can Chen
- Department of Anesthesiology, The Second Affiliated Hospital, Fujian Medical University, Quanzhou, China
| | - Yan Zhang
- Department of Anesthesiology, The Second Affiliated Hospital, Fujian Medical University, Quanzhou, China
| | - Shu Lin
- Department of Anesthesiology, The Second Affiliated Hospital, Fujian Medical University, Quanzhou, China.,Diabetes and Metabolism Division, Garvan Institute of Medical Research, Darlinghurst, Sydney, NSW, Australia.,Centre of Neurological and Metabolic Research, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, China
| | - He-Fan He
- Department of Anesthesiology, The Second Affiliated Hospital, Fujian Medical University, Quanzhou, China
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30
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Fang P, Chen C, Zheng F, Jia J, Chen T, Zhu J, Chang J, Zhang Z. NLRP3 inflammasome inhibition by histone acetylation ameliorates sevoflurane-induced cognitive impairment in aged mice by activating the autophagy pathway. Brain Res Bull 2021; 172:79-88. [PMID: 33895270 DOI: 10.1016/j.brainresbull.2021.04.016] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2020] [Revised: 04/10/2021] [Accepted: 04/19/2021] [Indexed: 01/31/2023]
Abstract
Age-related cognitive impairment is associated with diminished autophagy and progressively increased neuroinflammation. Histone acetylation has been shown to be a key process in sevoflurane-induced neurobehavioral abnormalities. Here, we investigated whether histone acetylation regulates the interaction between autophagy and the NLRP3 inflammasome in models of sevoflurane-induced cognitive impairment and explored the underlying molecular mechanisms. Aged C57BL/6 J mice and cultured primary hippocampal neurons were exposed to 3% sevoflurane for 2 h. Hippocampal tissue samples and hippocampal neurons were harvested. The processes of histone acetylation and autophagy and the activation of the NLRP3 inflammasome were observed using western blotting, immunofluorescence staining, and transmission electron microscopy. Suberoylanilide hydroxamic acid (SAHA), an inhibitor of histone deacetylases, increased histone H3 and H4 acetylation in both the mouse hippocampus and primary neurons. Concomitantly, sevoflurane upregulated components of the NLRP3 inflammasome (NLRP3, cleaved caspase-1, and IL-1β) by promoting autophagic degradation in the aging brain. Cognitive deficits and inadequate autophagy induced by sevoflurane were reversed and NLRP3 inflammasome activation was inhibited by SAHA. Treatment with 3-MA, an autophagy inhibitor, eliminated the neuroprotective effects of SAHA on improving cognition in mice, activating autophagy and downregulating the NLRP3 inflammasome. Based on these results, histone acetylation activates autophagy plays an important role in inhibiting the activation of the NLRP3 inflammasome to protect the host from excessive neuroinflammation and sevoflurane-induced cognitive dysfunction in the aging brain.
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Affiliation(s)
- Peng Fang
- Department of Anaesthesiology, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, 430071, China; Department of Anaesthesiology, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, 310003, China
| | - Chang Chen
- Department of Anaesthesiology, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, 430071, China
| | - Feng Zheng
- Department of Anaesthesiology, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, 430071, China
| | - Junke Jia
- Department of Anaesthesiology, Women's Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, 310002, China
| | - Ting Chen
- Department of Anaesthesiology, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, 430071, China
| | - Jinpiao Zhu
- Department of Anaesthesiology, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, 430071, China
| | - Jing Chang
- Department of Anaesthesiology, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, 430071, China
| | - Zongze Zhang
- Department of Anaesthesiology, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, 430071, China.
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31
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Gastrodin alleviates inflammatory injury of cardiomyocytes in septic shock mice via inhibiting NLRP3 expression. In Vitro Cell Dev Biol Anim 2021; 57:571-581. [PMID: 34106415 DOI: 10.1007/s11626-021-00593-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2020] [Accepted: 05/13/2021] [Indexed: 12/25/2022]
Abstract
Septic shock leads to myocardial dysfunction and induces inflammation. Nod-like receptor family pyrin domain-containing 3 (NLRP3) inflammasomes are involved in inflammation, and gastrodin can inhibit the activity of inflammasomes. Our study aimed to explore the effect of gastrodin against septic shock-induced injury through inhibiting NLRP3. Before establishing septic shock mice model, the mice were injected with gastrodin of various concentrations. The cardiac function of mice was detected by a PowerLab, and the histopathological changes of mouse myocardial tissues were detected by hematoxylin-eosin staining. Apoptosis of cardiomyocytes from mice was detected by TUNEL assay, and IL-1β concentration was detected by enzyme-linked immunosorbent assay. After culture in vitro and treatment with gastrodin, lipopolysaccharide (LPS), and NLRP3 vector, the cell viability and apoptosis of cardiomyocytes were detected by cell counting kit-8 and flow cytometry respectively. Besides, the expressions of NLRP3, Caspase-1, IL-1β, Bax, and Bcl-2 in mouse myocardial tissue or cultured cardiomyocytes were detected by Western blot. Gastrodin improved survival and promoted the recovery of cardiac function in septic shock mice, as it reversed the abnormality of left ventricular function indices in septic shock mice. Besides, gastrodin decreased IL-1β concentration and apoptosis in myocardial tissues of septic shock mice and decreased apoptosis and increased cell viability in LPS-induced cardiomyocytes. In addition, gastrodin downregulated NLRP3, Caspase-1, IL-1β, and Bax expressions and upregulated Bcl-2 expression in myocardial tissues of septic shock mice and LPS-induced cardiomyocytes. NLRP3 overexpression reversed the effect of gastrodin on LPS-induced cardiomyocytes. Gastrodin promoted cardiac function recovery and protected cardiomyocytes against septic shock-induced injury by regulating NLRP3.
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32
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Feng X, Hu J, Zhan F, Luo D, Hua F, Xu G. MicroRNA-138-5p Regulates Hippocampal Neuroinflammation and Cognitive Impairment by NLRP3/Caspase-1 Signaling Pathway in Rats. J Inflamm Res 2021; 14:1125-1143. [PMID: 33814920 PMCID: PMC8009546 DOI: 10.2147/jir.s304461] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Accepted: 03/04/2021] [Indexed: 12/23/2022] Open
Abstract
Purpose Neuroinflammation is an essential causative factor in the pathogenesis and progression of cognitive impairment. The present study aims to evaluate the critical role of microRNA-138-5p (miR-138-5p) in hippocampal neuroinflammation and cognitive impairment through the NLRP3/caspase-1 signaling pathway in rats. Material and Methods We established the cognitive impairment rat model and RM (Rat microglia) microglial cellular inflammation model by intracerebroventricular (icv) injection or stimulation of lipopolysaccharide (LPS). Morris water maze (MWM) and Y-maze tests were performed to assess the cognitive behaviors. Quantitative real-time polymerase chain reaction (qRT-PCR), Enzyme-linked immune-sorbent assay (ELISA) and Western blot analysis were utilized to evaluate mRNA or protein expression. Bioinformatic analysis and dual-luciferase reporter gene assay were performed to verify the targeting relationship between NLRP3 and miR-138-5p. Besides, Hematoxylin and eosin (H&E) staining and immunohistochemistry were applied to observe the neuronal morphology and detect the positive cells of the hippocampus, respectively. Results Compared to the control groups, LPS-treated rats exhibited significantly impaired learning and memory in MWM and Y-maze tests. The expression of NLRP3, caspase-1 and pro-inflammation cytokines (IL-1β and IL-18) were upregulated, while miR-138-5p was downregulated both in rat hippocampus and RM cells treated with LPS. MiR-138-5p is downregulated in microarray data of cognitive impairment animals and could directly target the 3ʹ-UTR of NLRP3. Furthermore, upregulation of miR-138-5p improved impaired cognitive functions, while inhibited hippocampal neuroinflammation demonstrated by decreased expression of NLRP3/caspase-1 axis, pro-inflammation cytokines and microglial activation. This study demonstrates for the first time that miR-138-5p suppresses the hippocampal NLRP3/caspase-1 signaling pathway activation in cognition impaired rats. Conclusion The low expression of miR-138-5p after LPS administration may contribute to the activation of the NLRP3/caspase-1 pathway, leading to hippocampal neuroinflammation and cognitive impairment in rat models. These findings indicate a promising therapeutic avenue for cognitive disorders.
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Affiliation(s)
- Xiaojin Feng
- Department of Anesthesiology, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, 330006, People's Republic of China.,Key Laboratory of Anesthesiology of Jiangxi Province, Nanchang, Jiangxi 330006, People's Republic of China
| | - Jialing Hu
- Department of Anesthesiology, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, 330006, People's Republic of China
| | - Fenfang Zhan
- Department of Anesthesiology, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, 330006, People's Republic of China
| | - Deqiang Luo
- Department of Intensive Care Unit, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, 330006, People's Republic of China
| | - Fuzhou Hua
- Department of Anesthesiology, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, 330006, People's Republic of China.,Key Laboratory of Anesthesiology of Jiangxi Province, Nanchang, Jiangxi 330006, People's Republic of China
| | - Guohai Xu
- Department of Anesthesiology, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, 330006, People's Republic of China.,Key Laboratory of Anesthesiology of Jiangxi Province, Nanchang, Jiangxi 330006, People's Republic of China
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Zhao S, Chen F, Wang D, Han W, Zhang Y, Yin Q. NLRP3 inflammasomes are involved in the progression of postoperative cognitive dysfunction: from mechanism to treatment. Neurosurg Rev 2020; 44:1815-1831. [PMID: 32918635 DOI: 10.1007/s10143-020-01387-z] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Revised: 08/25/2020] [Accepted: 09/03/2020] [Indexed: 12/15/2022]
Abstract
Postoperative cognitive dysfunction (POCD) involves patient memory and learning decline after surgery. POCD not only presents challenges for postoperative nursing and recovery but may also cause permanent brain damage for patients, including children and the aged, with vulnerable central nervous systems. Its occurrence is mainly influenced by surgical trauma, anesthetics, and the health condition of the patient. There is a lack of imaging and experimental diagnosis; therefore, patients can only be diagnosed by clinical observation, which may underestimate the morbidity, resulting in decreased treatment efficacy. Except for symptomatic support therapy, there is a relative lack of effective drugs specific for the treatment of POCD, because the precise mechanism of POCD remains to be determined. One current hypothesis is that postoperative inflammation promotes the progression of POCD. Accumulating research has indicated that overactivation of NOD-, LRR- and pyrin domain-containing protein 3 (NLRP3) inflammasomes contribute to the POCD progression, suggesting that targeting NLRP3 inflammasomes may be an effective therapy to treat POCD. In this review, we summarize recent studies and systematically describe the pathogenesis, treatment progression, and potential treatment options of targeting NLRP3 inflammasomes in POCD patients.
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Affiliation(s)
- Shuai Zhao
- Department of Anesthesiology, First Hospital of Jilin University, 71 Xinmin Avenue, Changchun, 130021, China
| | - Fan Chen
- Department of Neurosurgery, University of Medicine Greifswald, Greifswald, Germany
| | - Dunwei Wang
- Department of Anesthesiology, First Hospital of Jilin University, 71 Xinmin Avenue, Changchun, 130021, China
| | - Wei Han
- Department of Anesthesiology, First Hospital of Jilin University, 71 Xinmin Avenue, Changchun, 130021, China
| | - Yuan Zhang
- Department of Anesthesiology, First Hospital of Jilin University, 71 Xinmin Avenue, Changchun, 130021, China.
| | - Qiliang Yin
- Department of Oncology, First Hospital of Jilin University, Changchun, China.
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