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Bagatelas ED, Kavalali ET. Chronic modulation of cAMP signaling elicits synaptic scaling irrespective of activity. iScience 2024; 27:110176. [PMID: 38989459 PMCID: PMC11233962 DOI: 10.1016/j.isci.2024.110176] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2024] [Revised: 04/11/2024] [Accepted: 05/31/2024] [Indexed: 07/12/2024] Open
Abstract
Homeostatic plasticity mechanisms act in a negative feedback manner to stabilize neuronal firing around a set point. Classically, homeostatic synaptic plasticity is elicited via rather drastic manipulation of activity in a neuronal population. Here, we employed a chemogenetic approach to regulate activity via eliciting G protein-coupled receptor (GPCR) signaling in hippocampal neurons to trigger homeostatic synaptic plasticity. We demonstrate that chronic activation of hM4D(Gi) signaling induces mild and transient activity suppression, yet still triggers synaptic upscaling akin to tetrodotoxin (TTX)-induced complete activity suppression. Therefore, this homeostatic regulation was irrespective of Gi-signaling regulation of activity, but it was mimicked or occluded by direct manipulation of cyclic AMP (cAMP) signaling in a manner that intersected with the retinoic acid receptor alpha (RARα) signaling pathway. Our data suggest chemogenetic tools can uniquely be used to probe cell-autonomous mechanisms of synaptic scaling and operate via direct modulation of second messenger signaling bypassing activity regulation.
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Affiliation(s)
- Elena D. Bagatelas
- Department of Pharmacology and the Vanderbilt Brain Institute, Vanderbilt University, Nashville, TN 37209, USA
| | - Ege T. Kavalali
- Department of Pharmacology and the Vanderbilt Brain Institute, Vanderbilt University, Nashville, TN 37209, USA
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2
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Tang J, Tang Y, Lin P, Zheng J, Li Z, Zhang Y. Integrative analysis of circRNA networks in postoperative cognitive dysfunction. Int J Neurosci 2024:1-33. [PMID: 38261527 DOI: 10.1080/00207454.2024.2309473] [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: 12/09/2023] [Accepted: 01/13/2024] [Indexed: 01/25/2024]
Abstract
OBJECTIVE In the quest to decipher the molecular intricacies of Postoperative Cognitive Dysfunction (POCD), this study focused on circular RNA (circRNA) and their regulatory networks. MATERIALS AND METHODS Analyzing the Gene Expression Omnibus Series (GSE) 147277 dataset, we pinpointed 10 differentially expressed circRNAs linked to POCD. RESULTS The ensuing competing endogenous RNA (ceRNA) network, featuring pivotal players like Homo sapiens(hsa)_circ_0003424 and hsa-miR-193b-5p, provided a comprehensive understanding of the molecular players at play in POCD. CONCLUSION Additionally, the Protein-Protein Interaction (PPI) network spotlighted 10 core Hub genes, including phosphatase and tensin homolog (PTEN) and signal transducer and activator of transcription 3(STAT3), shedding light on potential therapeutic targets.
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Affiliation(s)
- Jian Tang
- Department of Anesthesiology, The Affiliated Traditional Chinese Medicine Hospital, Southwest Medical University, Luzhou, P. R. China
| | - Yanhong Tang
- Department of Anesthesiology, The Affiliated Traditional Chinese Medicine Hospital, Southwest Medical University, Luzhou, P. R. China
| | - Peimin Lin
- Department of Anesthesiology, The Affiliated Traditional Chinese Medicine Hospital, Southwest Medical University, Luzhou, P. R. China
| | - Jie Zheng
- Department of Anesthesiology, The Affiliated Traditional Chinese Medicine Hospital, Southwest Medical University, Luzhou, P. R. China
| | - Zhengfen Li
- Department of Anesthesiology, The Affiliated Traditional Chinese Medicine Hospital, Southwest Medical University, Luzhou, P. R. China
| | - Ying Zhang
- Department of Anesthesiology, The Affiliated Traditional Chinese Medicine Hospital, Southwest Medical University, Luzhou, P. R. China
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Wang X, Tang X, Zhu P, Hua D, Xie Z, Guo M, Que M, Yan J, Li X, Xia Q, Luo X, Bi J, Zhao Y, Zhou Z, Li S, Luo A. CircAKT3 alleviates postoperative cognitive dysfunction by stabilizing the feedback cycle of miR-106a-5p/HDAC4/MEF2C axis in hippocampi of aged mice. Cell Mol Life Sci 2024; 81:138. [PMID: 38478029 PMCID: PMC10937803 DOI: 10.1007/s00018-024-05156-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2023] [Revised: 01/10/2024] [Accepted: 02/05/2024] [Indexed: 03/17/2024]
Abstract
Circular RNAs (circRNAs) have garnered significant attention in the field of neurodegenerative diseases including Alzheimer's diseases due to their covalently closed loop structure. However, the involvement of circRNAs in postoperative cognitive dysfunction (POCD) is still largely unexplored. To identify the genes differentially expressed between non-POCD (NPOCD) and POCD mice, we conducted the whole transcriptome sequencing initially in this study. According to the expression profiles, we observed that circAKT3 was associated with hippocampal neuronal apoptosis in POCD mice. Moreover, we found that circAKT3 overexpression reduced apoptosis of hippocampal neurons and alleviated POCD. Subsequently, through bioinformatics analysis, our data showed that circAKT3 overexpression in vitro and in vivo elevated the abundance of miR-106a-5p significantly, resulting in a decrease of HDAC4 protein and an increase of MEF2C protein. Additionally, this effect of circAKT3 was blocked by miR-106a-5p inhibitor. Interestingly, MEF2C could activate the transcription of miR-106a-5p promoter and form a positive feedback loop. Therefore, our findings revealed more potential modulation ways between circRNA-miRNA and miRNA-mRNA, providing different directions and targets for preclinical studies of POCD.
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Affiliation(s)
- Xuan Wang
- Department of Anesthesiology and Pain Medicine, Hubei Key Laboratory of Geriatric Anesthesia and Perioperative Brain Health, and Wuhan Clinical Research Center for Geriatric Anesthesia, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Avenue, Wuhan, 430030, Hubei, China
| | - Xiaole Tang
- State Key Laboratory of Oncology in Southern China, Department of Anesthesiology, Sun Yat-Sen University Cancer Center, Guangzhou, 510060, Guangdong, China
| | - Pengfei Zhu
- Department of Anesthesiology and Pain Medicine, Hubei Key Laboratory of Geriatric Anesthesia and Perioperative Brain Health, and Wuhan Clinical Research Center for Geriatric Anesthesia, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Avenue, Wuhan, 430030, Hubei, China
| | - Dongyu Hua
- Department of Anesthesiology and Pain Medicine, Hubei Key Laboratory of Geriatric Anesthesia and Perioperative Brain Health, and Wuhan Clinical Research Center for Geriatric Anesthesia, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Avenue, Wuhan, 430030, Hubei, China
| | - Zheng Xie
- Department of Anesthesiology and Pain Medicine, Hubei Key Laboratory of Geriatric Anesthesia and Perioperative Brain Health, and Wuhan Clinical Research Center for Geriatric Anesthesia, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Avenue, Wuhan, 430030, Hubei, China
| | - Mingke Guo
- Department of Anesthesiology and Pain Medicine, Hubei Key Laboratory of Geriatric Anesthesia and Perioperative Brain Health, and Wuhan Clinical Research Center for Geriatric Anesthesia, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Avenue, Wuhan, 430030, Hubei, China
| | - Mengxin Que
- Department of Anesthesiology and Pain Medicine, Hubei Key Laboratory of Geriatric Anesthesia and Perioperative Brain Health, and Wuhan Clinical Research Center for Geriatric Anesthesia, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Avenue, Wuhan, 430030, Hubei, China
| | - Jing Yan
- Department of Anesthesiology and Pain Medicine, Hubei Key Laboratory of Geriatric Anesthesia and Perioperative Brain Health, and Wuhan Clinical Research Center for Geriatric Anesthesia, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Avenue, Wuhan, 430030, Hubei, China
| | - Xing Li
- Department of Anesthesiology and Pain Medicine, Hubei Key Laboratory of Geriatric Anesthesia and Perioperative Brain Health, and Wuhan Clinical Research Center for Geriatric Anesthesia, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Avenue, Wuhan, 430030, Hubei, China
| | - Qian Xia
- Department of Anesthesiology and Pain Medicine, Hubei Key Laboratory of Geriatric Anesthesia and Perioperative Brain Health, and Wuhan Clinical Research Center for Geriatric Anesthesia, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Avenue, Wuhan, 430030, Hubei, China
| | - Xiaoxiao Luo
- Department of Oncology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Jiangjiang Bi
- Department of Anesthesiology and Pain Medicine, Hubei Key Laboratory of Geriatric Anesthesia and Perioperative Brain Health, and Wuhan Clinical Research Center for Geriatric Anesthesia, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Avenue, Wuhan, 430030, Hubei, China
| | - Yilin Zhao
- Department of Anesthesiology and Pain Medicine, Hubei Key Laboratory of Geriatric Anesthesia and Perioperative Brain Health, and Wuhan Clinical Research Center for Geriatric Anesthesia, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Avenue, Wuhan, 430030, Hubei, China
| | - Zhiqiang Zhou
- Department of Anesthesiology and Pain Medicine, Hubei Key Laboratory of Geriatric Anesthesia and Perioperative Brain Health, and Wuhan Clinical Research Center for Geriatric Anesthesia, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Avenue, Wuhan, 430030, Hubei, China
| | - Shiyong Li
- Department of Anesthesiology and Pain Medicine, Hubei Key Laboratory of Geriatric Anesthesia and Perioperative Brain Health, and Wuhan Clinical Research Center for Geriatric Anesthesia, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Avenue, Wuhan, 430030, Hubei, China.
| | - Ailin Luo
- Department of Anesthesiology and Pain Medicine, Hubei Key Laboratory of Geriatric Anesthesia and Perioperative Brain Health, and Wuhan Clinical Research Center for Geriatric Anesthesia, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Avenue, Wuhan, 430030, Hubei, China.
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Han S, Wang J, Zhang W, Tian X. Chronic Pain-Related Cognitive Deficits: Preclinical Insights into Molecular, Cellular, and Circuit Mechanisms. Mol Neurobiol 2024:10.1007/s12035-024-04073-z. [PMID: 38470516 DOI: 10.1007/s12035-024-04073-z] [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: 10/13/2023] [Accepted: 02/23/2024] [Indexed: 03/14/2024]
Abstract
Cognitive impairment is a common comorbidity of chronic pain, significantly disrupting patients' quality of life. Despite this comorbidity being clinically recognized, the underlying neuropathological mechanisms remain unclear. Recent preclinical studies have focused on the fundamental mechanisms underlying the coexistence of chronic pain and cognitive decline. Pain chronification is accompanied by structural and functional changes in the neural substrate of cognition. Based on the developments in electrophysiology and optogenetics/chemogenetics, we summarized the relevant neural circuits involved in pain-induced cognitive impairment, as well as changes in connectivity and function in brain regions. We then present the cellular and molecular alternations related to pain-induced cognitive impairment in preclinical studies, mainly including modifications in neuronal excitability and structure, synaptic plasticity, glial cells and cytokines, neurotransmitters and other neurochemicals, and the gut-brain axis. Finally, we also discussed the potential treatment strategies and future research directions.
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Affiliation(s)
- Siyi Han
- Department of Anesthesiology, Hubei Key Laboratory of Geriatric Anesthesia and Perioperative Brain Health, and Wuhan Clinical Research Center for Geriatric Anesthesia, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, No.1095 Jiefang Avenue, Wuhan, Hubei, China
| | - Jie Wang
- Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan, Hubei, China
| | - Wen Zhang
- Department of Anesthesiology, Hubei Key Laboratory of Geriatric Anesthesia and Perioperative Brain Health, and Wuhan Clinical Research Center for Geriatric Anesthesia, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, No.1095 Jiefang Avenue, Wuhan, Hubei, China.
| | - Xuebi Tian
- Department of Anesthesiology, Hubei Key Laboratory of Geriatric Anesthesia and Perioperative Brain Health, and Wuhan Clinical Research Center for Geriatric Anesthesia, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, No.1095 Jiefang Avenue, Wuhan, Hubei, China.
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Huang J, Zhu Y, Liu Y, Zhang R, Zhang Z, Liu J, Zhang Z, Liang Y, Ma B. The cold-inducible RNA-binding protein-Thioredoxin 1 pathway ameliorates mitochondrial dysfunction and mitochondrial dynamin-related protein 1 level in the hippocampus of aged mice with perioperative neurocognitive dysfunction. CNS Neurosci Ther 2024; 30:e14433. [PMID: 37641878 PMCID: PMC10915978 DOI: 10.1111/cns.14433] [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: 05/08/2023] [Revised: 07/20/2023] [Accepted: 08/15/2023] [Indexed: 08/31/2023] Open
Abstract
BACKGROUND As a multi-disease model, neuroinflammation, mitochondrial dysfunction, and oxidative stress might be involved in the pathogenic process of perioperative neurocognitive dysfunction (PND). Dynamin-related protein 1 (Drp1) could mediate mitochondrial fission and play important roles in mitochondrial dynamic homeostasis and mitochondria function. The Drp1 may be involved in PND development. The cold-inducible RNA-binding protein (Cirbp) could bind to the 3'-UTR of the thioredoxin 1 (Trx1) mRNA, control oxidative stress, and improve mitochondrial function. In this study, we hypothesized that the Cirbp-Trx1 pathway could ameliorate mitochondrial dysfunction and Drp1 levels in PND mice. METHODS Differentially expressed genes were screened using the Gene Expression Omnibus (GEO) database GSE95426 and validated using PCR. Eighteen-month-old C57BL/6 mice were subjected to tibial fracture surgery to generate a PND model. Cirbp was upregulated by hippocampal stereotaxic injections of over-Cirbp plasmid according to the manufacturer's instructions for the in vivo DNA transfection reagent. Cirbp expression was measured using western blot (WB) and immunofluorescence (IF). The Morris water maze (MWM) was used to assess cognitive function. After behavioral testing, the hippocampal tissue was extracted to examine changes in mitochondrial Drp1, mitochondrial function, neuroinflammation, and oxidative stress. RESULTS Differential gene screening showed that Cirbp expression was significantly downregulated (fold change >1.5, p = 0.003272) in the PND model. In this study, we also found that Cirbp protein levels were downregulated, accompanied by an impairment of cognition, a decrease in superoxide dismutase (SOD) activity, and an increase in malondialdehyde (MDA) content, mitochondrial Drp1 levels, neuroinflammation, and apoptosis. Cirbp overexpression increased Trx1 protein levels and reversed the damage. However, this protective effect was abolished by PX-12 treatment with a Trx1 inhibitor. CONCLUSIONS The Cirbp-Trx1 pathway may regulate mitochondrial dysfunction and mitochondrial Drp1 expression in the hippocampus of PND mice to ameliorate cognitive dysfunction.
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Affiliation(s)
- Jingyao Huang
- Laboratory of Anesthesia and Critical Care Medicine in Colleges and Universities of Shandong Province, School of AnesthesiologyWeifang Medical UniversityWeifangChina
| | - Yongliang Zhu
- Laboratory of Anesthesia and Critical Care Medicine in Colleges and Universities of Shandong Province, School of AnesthesiologyWeifang Medical UniversityWeifangChina
| | - Yongxin Liu
- Laboratory of Anesthesia and Critical Care Medicine in Colleges and Universities of Shandong Province, School of AnesthesiologyWeifang Medical UniversityWeifangChina
| | - Rui Zhang
- Laboratory of Anesthesia and Critical Care Medicine in Colleges and Universities of Shandong Province, School of AnesthesiologyWeifang Medical UniversityWeifangChina
| | - Zhenjiang Zhang
- Department of Thoracic SurgeryWeifang People's HospitalWeifangChina
| | - Jie Liu
- Laboratory of Anesthesia and Critical Care Medicine in Colleges and Universities of Shandong Province, School of AnesthesiologyWeifang Medical UniversityWeifangChina
| | - Zhihao Zhang
- Laboratory of Anesthesia and Critical Care Medicine in Colleges and Universities of Shandong Province, School of AnesthesiologyWeifang Medical UniversityWeifangChina
| | - Yingxia Liang
- Laboratory of Anesthesia and Critical Care Medicine in Colleges and Universities of Shandong Province, School of AnesthesiologyWeifang Medical UniversityWeifangChina
| | - Baoyu Ma
- Laboratory of Anesthesia and Critical Care Medicine in Colleges and Universities of Shandong Province, School of AnesthesiologyWeifang Medical UniversityWeifangChina
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Jiang Q, Guo M, Zuo Z. Familiar observers attenuate surgery-induced neuroinflammation and cognitive dysfunction in mice. CNS Neurosci Ther 2024; 30:e14351. [PMID: 37408386 PMCID: PMC10848066 DOI: 10.1111/cns.14351] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Revised: 06/22/2023] [Accepted: 06/24/2023] [Indexed: 07/07/2023] Open
Abstract
AIMS Postoperative cognitive dysfunction (POCD) is a common complication associated with poor outcome. Our previous study has shown that living with familiar observers in the same cage reduces anxiety of mice with surgery. Anxiety can impair learning and memory. Thus, this study was designed to determine whether living with familiar observers attenuated the dysfunction of learning and memory of mice with surgery. METHODS Six- to eight-week-old CD-1 male mice or 18-month-old C57BL/6 male mice had left carotid artery exposure under isoflurane anesthesia. They lived with non-surgery male mice at 2 (number of surgery mice) to 3 (number of non-surgery mice) ratio or with other surgery mice. Mice were subjected to light and dark box test 3 days after surgery to measure their anxiety levels and novel object recognition and fear conditioning tests from 5 days after surgery to measure their learning and memory. Blood and brain were harvested for biochemical analysis. RESULTS Living with familiar observers that lived with surgery mice for at least 2 weeks before the surgery and then after surgery reduced the anxiety and dysfunction of learning and memory in young adult male mice. Living with unfamiliar observers that lived with surgery mice after the surgery but not before the surgery did not have those effects on the mice with surgery. Living with familiar observers attenuated learning and memory dysfunction after surgery also in old male mice. Living with familiar observers attenuated inflammatory response in the blood and brain and the activation of the lateral habenula (LHb)-ventral tegmental area (VTA) neural circuitry, which has been shown to be important for POCD. Wound infiltration with bupivacaine attenuated the activation of LHb-VTA. CONCLUSION These results suggest that living with familiar observers attenuates POCD and neuroinflammation, possibly via inhibiting the activation of the LHb-VTA neural circuitry.
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Affiliation(s)
- Qun Jiang
- Department of AnesthesiologyUniversity of VirginiaCharlottesvilleVirginiaUSA
- Department of AnesthesiologyThe Second Affiliated Hospital of Guangzhou University of Chinese MedicineGuangzhouChina
- The First School of Clinical MedicineSouthern Medical UniversityGuangzhouChina
| | - Mingyan Guo
- Department of AnesthesiologyUniversity of VirginiaCharlottesvilleVirginiaUSA
- Department of Anesthesiology, Sun Yat‐sen Memorial HospitalSun Yat‐sen UniversityGuangzhouChina
| | - Zhiyi Zuo
- Department of AnesthesiologyUniversity of VirginiaCharlottesvilleVirginiaUSA
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Qian H, Gao F, Wu X, Lin D, Huang Y, Chen A, Deng J, Gong C, Chen X, Zheng X. Activation of the CD200/CD200R1 axis attenuates neuroinflammation and improves postoperative cognitive dysfunction via the PI3K/Akt/NF-κB signaling pathway in aged mice. Inflamm Res 2023; 72:2127-2144. [PMID: 37902837 DOI: 10.1007/s00011-023-01804-1] [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: 05/18/2023] [Revised: 08/28/2023] [Accepted: 10/02/2023] [Indexed: 11/01/2023] Open
Abstract
BACKGROUND Postoperative cognitive dysfunction (POCD) is a neurological complication occurring after anesthesia and surgery. Neuroinflammation plays a critical role in the pathogenesis of POCD, and the activation of the cluster of differentiation 200 (CD200)/CD200R1 axis improves neurological recovery in various neurological disorders by modulating inflammation. The aim of this study was to investigate the impact and underlying mechanism of CD200/CD200R1 axis on POCD in aged mice. METHODS The model of POCD was established in aged mice. To assess the learning and memory abilities of model mice, the Morris water maze test was implemented. CD200Fc (CD200 fusion protein), CD200R1 Ab (anti-CD200R1 antibody), and 740Y-P (a specific PI3K activator) were used to evaluate the effects of the CD200/CD200R1/PI3K/Akt/NF-κB signaling pathway on hippocampal microglial polarization, neuroinflammation, synaptic activity, and cognition in mice. RESULTS It was observed that anesthesia/surgery induced cognitive decline in aged mice, increased the levels of tumor necrosis factor alpha (TNF-α), interleukin (IL)-6, IL-1 β and decreased the levels of postsynaptic density protein 95 (PSD-95), synaptophysin (SYN) in the hippocampus. Moreover, CD200Fc and 740Y-P attenuated neuroinflammation and synaptic deficits and reversed cognitive impairment via the phosphatidylinositol 3-kinase (PI3K)/ protein kinase B (Akt)/nuclear factor-kappa B (NF-κB) signaling pathway, whereas CD200R1 Ab administration exerted the opposite effects. Our results further show that the CD200/CD200R1 axis modulates M1/M2 polarization in hippocampal microglia via the PI3K/Akt/NF-κB signaling pathway. CONCLUSIONS Our findings indicate that the activation of the CD200/CD200R1 axis reduces neuroinflammation, synaptic deficits, and cognitive impairment in the hippocampus of aged mice by regulating microglial M1/M2 polarization via the PI3K/Akt/NF-κB signaling pathway.
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Affiliation(s)
- Haitao Qian
- Shengli Clinical Medical College of Fujian Medical University, Department of Anesthesiology, Fujian Provincial Hospital, Fuzhou, China
| | - Fei Gao
- Shengli Clinical Medical College of Fujian Medical University, Department of Anesthesiology, Fujian Provincial Hospital, Fuzhou, China
| | - Xuyang Wu
- College of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, China
| | - Daoyi Lin
- Shengli Clinical Medical College of Fujian Medical University, Department of Anesthesiology, Fujian Provincial Hospital, Fuzhou, China
| | - Yongxin Huang
- Shengli Clinical Medical College of Fujian Medical University, Department of Anesthesiology, Fujian Provincial Hospital, Fuzhou, China
| | - Andi Chen
- Shengli Clinical Medical College of Fujian Medical University, Department of Anesthesiology, Fujian Provincial Hospital, Fuzhou, China
| | - Jianhui Deng
- Shengli Clinical Medical College of Fujian Medical University, Department of Anesthesiology, Fujian Provincial Hospital, Fuzhou, China
| | - Cansheng Gong
- Shengli Clinical Medical College of Fujian Medical University, Department of Anesthesiology, Fujian Provincial Hospital, Fuzhou, China
| | - Xiaohui Chen
- Shengli Clinical Medical College of Fujian Medical University, Department of Anesthesiology, Fujian Provincial Hospital, Fuzhou, China.
| | - Xiaochun Zheng
- Shengli Clinical Medical College of Fujian Medical University, Department of Anesthesiology, Fujian Provincial Hospital, Fuzhou, China.
- Fujian Emergency Medical Center, Fujian Provincial Key Laboratory of Critical Care Medicine, Fujian Provincial Co-Constructed Laboratory of "Belt and Road", Fuzhou, China.
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Chen P, Liu XY, Lin MH, Li YX, Kang DZ, Ye ZC, Lin QS. NeuroD1 administration ameliorated neuroinflammation and boosted neurogenesis in a mouse model of subarachnoid hemorrhage. J Neuroinflammation 2023; 20:261. [PMID: 37953259 PMCID: PMC10641988 DOI: 10.1186/s12974-023-02949-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2023] [Accepted: 11/07/2023] [Indexed: 11/14/2023] Open
Abstract
BACKGROUND Subarachnoid hemorrhage (SAH) causes significant long-term neurocognitive dysfunction, which is associated with hippocampal neuroinflammation. Growing evidences have shown that astrocytes played a significant role in mediating neuroinflammation. Recently, in vivo reprogramming of astrocytes to neurons by NeuroD1 or PTBP1 administration has generated a lot of interests and controversies. While the debates centered on the source of neurogenesis, no attention has been paid to the changes of the astrocytes-mediated neuroinflammation and its impact on endogenous neurogenesis after NeuroD1 administration. METHODS 80 adult male C57BL/6 mice were used in this study. SAH was established by pre-chiasmatic injection of 100 μl blood. AAV-NeuroD1-GFP virus was injected to the hippocampus 3 day post-SAH. Neurocognitive function, brain water content, in vivo electrophysiology, Golgi staining, western blot and immunofluorescent staining were assessed at day 14 post-virus injection. RESULTS NeuroD1 administration markedly attenuated reactive astrocytes-mediated neuroinflammation by reversing neurotoxic A1 astrocytes transformation, decreasing the secretion of neuroinflammatory cytokines, and reducing the activation of harmful microglia. NeuroD1 treatment significantly reversed the brain-blood barrier impairment and promoted the release of neurotrophic factors pleiotrophin (PTN), all of which contributed to the improvement of cellular microenvironment and made it more suitable for neurogenesis. Interestingly, besides neurogenesis in the hippocampus from cells transfected with NeuroD1 at the early phase of SAH, NeuroD1 administration significantly boosted the endogenous neurogenesis at the late phase of SAH, which likely benefited from the improvement of the neuroinflammatory microenvironment. Functionally, NeuroD1 treatment significantly alleviated neurocognitive dysfunction impaired by SAH. CONCLUSIONS NeuroD1 significantly promoted neurofunctional recovery by attenuating reactive astrocytes-mediated neuroinflammation and boosting neurogenesis decimated by SAH. Specifically, NeuroD1 efficiently converted transfected cells, most likely astrocytes, to neurons at the early phase of SAH, suppressed astrocytes-mediated neuroinflammation and boosted endogenous neurogenesis at the late phase of SAH.
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Affiliation(s)
- Ping Chen
- Department of Anesthesiology, Anesthesiology Research Institute, The First Affiliated Hospital of Fujian Medical University, Fuzhou, Fujian, China
- Key Laboratory of Brain Aging and Neurodegenerative Diseases, The School of Basic Medical Sciences, Fujian Medical University, Fuzhou, Fujian, China
| | - Xue-Yan Liu
- Key Laboratory of Brain Aging and Neurodegenerative Diseases, The School of Basic Medical Sciences, Fujian Medical University, Fuzhou, Fujian, China
- Department of Medicinal Chemistry, School of Pharmacy, Fujian Medical University, Fuzhou, 350122, Fujian, China
| | - Mou-Hui Lin
- Key Laboratory of Brain Aging and Neurodegenerative Diseases, The School of Basic Medical Sciences, Fujian Medical University, Fuzhou, Fujian, China
| | - Yu-Xi Li
- Key Laboratory of Brain Aging and Neurodegenerative Diseases, The School of Basic Medical Sciences, Fujian Medical University, Fuzhou, Fujian, China
| | - De-Zhi Kang
- Department of Neurosurgery, Neurosurgery Research Institute, First Affiliated Hospital of Fujian Medical University, No. 20 Chazhong Rd, Taijiang District, Fuzhou, 350005, Fujian, China
- Department of Neurosurgery, Binhai Branch of National Regional Medical Center, First Affiliated Hospital of Fujian Medical University, Fuzhou, 350209, Fujian, China
- Fujian Provincial Institutes of Brain Disorders and Brain Sciences, First Affiliated Hospital of Fujian Medical University, Fuzhou, 350005, Fujian, China
- Fujian Provincial Clinical Research Center for Neurological Diseases, First Affiliated Hospital of Fujian Medical University, Fuzhou, 350005, Fujian, China
- Fujian Provincial Key Laboratory of Precision Medicine for Cancer, First Affiliated Hospital of Fujian Medical University, Fuzhou, 350005, Fujian, China
| | - Zu-Cheng Ye
- Key Laboratory of Brain Aging and Neurodegenerative Diseases, The School of Basic Medical Sciences, Fujian Medical University, Fuzhou, Fujian, China.
| | - Qing-Song Lin
- Department of Neurosurgery, Neurosurgery Research Institute, First Affiliated Hospital of Fujian Medical University, No. 20 Chazhong Rd, Taijiang District, Fuzhou, 350005, Fujian, China.
- Department of Neurosurgery, Binhai Branch of National Regional Medical Center, First Affiliated Hospital of Fujian Medical University, Fuzhou, 350209, Fujian, China.
- Fujian Provincial Institutes of Brain Disorders and Brain Sciences, First Affiliated Hospital of Fujian Medical University, Fuzhou, 350005, Fujian, China.
- Fujian Provincial Clinical Research Center for Neurological Diseases, First Affiliated Hospital of Fujian Medical University, Fuzhou, 350005, Fujian, China.
- Fujian Provincial Key Laboratory of Precision Medicine for Cancer, First Affiliated Hospital of Fujian Medical University, Fuzhou, 350005, Fujian, China.
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Bai F, Huang L, Long Z, Zhang M, Deng Q, Huang J, Bao X, Hao X, Li H. Depletion of PIEZO1 expression is accompanied by upregulating p53 signaling in mice with perioperative neurocognitive disorder. Funct Integr Genomics 2023; 23:327. [PMID: 37889347 DOI: 10.1007/s10142-023-01258-y] [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: 08/17/2023] [Revised: 10/11/2023] [Accepted: 10/16/2023] [Indexed: 10/28/2023]
Abstract
As the common complications observed in surgical elder patients, perioperative neurocognitive disorders (PND) cause a series of serious perioperative health problems. However, there are no effective treatments, and the exact mechanisms are still largely unknown. In this study, transcriptome sequencing was performed to investigate the differentially expressed genes (DEGs) in the hippocampus of C57BL/6J aged mice with or without PND. Compared with the Mock group, the expression of 352, 395, and 772 genes changed significantly in the PND group at days 1, 7, and 21 after surgery, respectively. Gene ontology (GO) and gene set enrichment analysis (GSEA) showed that DEGs were mainly associated with p53 signaling. Moreover, GSEA revealed potentially p53-related DEGs such as leucine-rich repeat serine/threonine-protein kinase 1 (LRRK1), monooxygenase DBH-like 1 (MOXD1), and piezo type mechanosensitive ion channel component 1 (PIEZO1). Furthermore, we confirmed the decreased interaction of PIEZO1 with p53 in PND, and upregulation of PIEZO1 resulted in a decrease in p53 protein levels through increased ubiquitination of p53. In conclusion, this study contributes to the knowledge of global changes in gene expression and mechanisms during PND.
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Affiliation(s)
- Fuhai Bai
- Department of Anesthesiology, Xinqiao Hospital, Army Medical University, Chongqing, 400037, China
| | - Lu Huang
- Department of Anesthesiology, Xinqiao Hospital, Army Medical University, Chongqing, 400037, China
| | - Zonghong Long
- Department of Anesthesiology, Xinqiao Hospital, Army Medical University, Chongqing, 400037, China
| | - Min Zhang
- Department of Anesthesiology, Xinqiao Hospital, Army Medical University, Chongqing, 400037, China
| | - Qiangting Deng
- Editorial Office of Journal of Army Medical University, Chongqing, 400038, China
| | - Jing Huang
- Department of Anesthesiology, Xinqiao Hospital, Army Medical University, Chongqing, 400037, China
| | - Xiaohang Bao
- Department of Anesthesiology, Xinqiao Hospital, Army Medical University, Chongqing, 400037, China
| | - Xianglin Hao
- Department of Pathology, Xinqiao Hospital, Army Medical University, Chongqing, 400037, People's Republic of China
| | - Hong Li
- Department of Anesthesiology, Xinqiao Hospital, Army Medical University, Chongqing, 400037, China.
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10
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Deng H, Wu Y, Gao P, Kong D, Pan C, Xu S, Tang D, Jiao Y, Wen D, Yu W. Preoperative Pain Facilitates Postoperative Cognitive Dysfunction via Periaqueductal Gray Matter-Dorsal Raphe Circuit. Neuroscience 2023; 524:209-219. [PMID: 36958595 DOI: 10.1016/j.neuroscience.2023.03.019] [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: 11/17/2022] [Revised: 03/09/2023] [Accepted: 03/15/2023] [Indexed: 03/25/2023]
Abstract
Postoperative cognitive dysfunction (POCD) is a medically induced, rapidly occurring postoperative disease, which is hard to recover and seriously threatens the quality of life, especially for elderly patients, so it is important to identify the risk factors for POCD and apply early intervention to prevent POCD. As we have known, pain can impair cognition, and many surgery patients experience different preoperative pain, but it is still unknown whether these patients are vulnerable for POCD. Here we found that chronic pain (7 days, but not 1 day acute pain) induced by Complete Freund's Adjuvant (CFA) injected in the hind paw of rats could easily induce spatial cognition and memory impairment after being exposed to sevoflurane anesthesia. Next, for the mechanisms, we focused on the Periaqueductal Gray Matter (PAG), a well-known pivotal nucleus in pain process. It was detected the existence of neural projection from ventrolateral PAG (vlPAG) to adjacent nucleus Dorsal Raphe (DR), the origin of serotonergic projection for the whole cerebrum, through virus tracing and patch clamp recordings. The Immunofluorescence staining and western blot results showed that Tryptophan Hydroxylase 2 (TPH2) for serotonin synthesis in the DR was increased significantly in the rats treated with CFA for 7 days and sevoflurane for 3 hours, while chemo-genetic inhibition of the vlPAG-DR projection induced obvious spatial learning and memory impairment. Our study suggests that preoperative chronic pain may facilitate cognitive function impairment after receiving anesthesia through the PAG-DR neural circuit, and preventative analgesia should be a considerable measure to reduce the incidence of POCD.
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Affiliation(s)
- Haoyue Deng
- Department of Anesthesiology, Renji Hospital, Shanghai Jiao Tong University School of Medicine, P.O. Box 200127, No. 160 Pujian Road, Shanghai, China; Key Laboratory of Anesthesiology (Shanghai Jiao Tong University), Ministry of Education, China
| | - Yi Wu
- Department of Anesthesiology, Renji Hospital, Shanghai Jiao Tong University School of Medicine, P.O. Box 200127, No. 160 Pujian Road, Shanghai, China; Key Laboratory of Anesthesiology (Shanghai Jiao Tong University), Ministry of Education, China
| | - Po Gao
- Department of Anesthesiology, Renji Hospital, Shanghai Jiao Tong University School of Medicine, P.O. Box 200127, No. 160 Pujian Road, Shanghai, China; Key Laboratory of Anesthesiology (Shanghai Jiao Tong University), Ministry of Education, China
| | - Dexu Kong
- Department of Anesthesiology, Renji Hospital, Shanghai Jiao Tong University School of Medicine, P.O. Box 200127, No. 160 Pujian Road, Shanghai, China; Key Laboratory of Anesthesiology (Shanghai Jiao Tong University), Ministry of Education, China
| | - Chao Pan
- Department of Anesthesiology, Renji Hospital, Shanghai Jiao Tong University School of Medicine, P.O. Box 200127, No. 160 Pujian Road, Shanghai, China; Key Laboratory of Anesthesiology (Shanghai Jiao Tong University), Ministry of Education, China
| | - Saihong Xu
- Department of Anesthesiology, Renji Hospital, Shanghai Jiao Tong University School of Medicine, P.O. Box 200127, No. 160 Pujian Road, Shanghai, China; Key Laboratory of Anesthesiology (Shanghai Jiao Tong University), Ministry of Education, China
| | - Dan Tang
- Department of Anesthesiology, Renji Hospital, Shanghai Jiao Tong University School of Medicine, P.O. Box 200127, No. 160 Pujian Road, Shanghai, China; Key Laboratory of Anesthesiology (Shanghai Jiao Tong University), Ministry of Education, China
| | - Yingfu Jiao
- Department of Anesthesiology, Renji Hospital, Shanghai Jiao Tong University School of Medicine, P.O. Box 200127, No. 160 Pujian Road, Shanghai, China; Key Laboratory of Anesthesiology (Shanghai Jiao Tong University), Ministry of Education, China.
| | - Daxiang Wen
- Department of Anesthesiology, Renji Hospital, Shanghai Jiao Tong University School of Medicine, P.O. Box 200127, No. 160 Pujian Road, Shanghai, China; Key Laboratory of Anesthesiology (Shanghai Jiao Tong University), Ministry of Education, China.
| | - Weifeng Yu
- Department of Anesthesiology, Renji Hospital, Shanghai Jiao Tong University School of Medicine, P.O. Box 200127, No. 160 Pujian Road, Shanghai, China; Key Laboratory of Anesthesiology (Shanghai Jiao Tong University), Ministry of Education, China.
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11
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Xu X, Zhou B, Liu J, Ma Q, Zhang T, Wu X. Ru360 Alleviates Postoperative Cognitive Dysfunction in Aged Mice by Inhibiting MCU-Mediated Mitochondrial Dysfunction. Neuropsychiatr Dis Treat 2023; 19:1531-1542. [PMID: 37424959 PMCID: PMC10329430 DOI: 10.2147/ndt.s409568] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Accepted: 05/22/2023] [Indexed: 07/11/2023] Open
Abstract
Purpose Ru360, a selective inhibitor of mitochondrial calcium uptake, maintains mitochondrial calcium homeostasis. To evaluate whether mitochondrial calcium uniporter (MCU)-mediated mitochondrial function is associated with the pathological process of Postoperative cognitive dysfunction (POCD), elucidate its relationship with neuroinflammation, and observe whether the relevant pathological process can be improved with Ru360. Methods Aged mice underwent experimental open abdominal surgery after anesthesia. Open field tests, Novel object recognition tests and Y Maze Tests were used to conduct behavioral experiments. The reactive oxygen species (ROS) content, the levels of inflammatory cytokines interleukin-1β (IL-1β), interleukin-6 (IL-6) and tumor necrosis factor-α (TNF-α), intra-mitochondrial calcium, mitochondrial membrane potential (MMP) and the activity of antioxidant superoxide dismutase (SOD) in the hippocampus of mice were detected using kits. The expression of proteins was detected using Western blot. Results After treatment with Ru360, MCU-mediated mitochondrial dysfunction was inhibited, neuroinflammation was reduced, and the learning ability of the mice was improved after surgery. Conclusion Our study demonstrated that mitochondrial function plays a crucial role in the pathology of POCD, and using Ru360 to improve mitochondrial function may be a new and necessary direction for the treatment of POCD.
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Affiliation(s)
- Xiaoxiao Xu
- The First Hospital of Ningbo University, Ningbo, 315211, People’s Republic of China
| | - Bin Zhou
- The First Hospital of Ningbo University, Ningbo, 315211, People’s Republic of China
| | - Jun Liu
- The First Hospital of Ningbo University, Ningbo, 315211, People’s Republic of China
| | - Qianli Ma
- The First Hospital of Ningbo University, Ningbo, 315211, People’s Republic of China
| | - Tengyu Zhang
- The First Hospital of Ningbo University, Ningbo, 315211, People’s Republic of China
| | - Xiang Wu
- The First Hospital of Ningbo University, Ningbo, 315211, People’s Republic of China
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Xu F, Cong P, Lu Z, Shi L, Xiong L, Zhao G. Integration of ATAC-Seq and RNA-Seq identifies key genes and pathways involved in the neuroprotection of S-adenosylmethionine against perioperative neurocognitive disorder. Comput Struct Biotechnol J 2023; 21:1942-1954. [PMID: 36942104 PMCID: PMC10024148 DOI: 10.1016/j.csbj.2023.03.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2022] [Revised: 03/01/2023] [Accepted: 03/02/2023] [Indexed: 03/06/2023] Open
Abstract
The gene-regulatory landscape is highly dynamic in healthy and diseased brains. DNA methylation is a well-known epigenetic modification that regulates gene expression, and our previous study demonstrated that S-adenosylmethionine (SAM), a methylome modulator, was a neuroprotectant against perioperative neurocognitive disorder (PND). However, the underlying mechanism remains to be elucidated. Here, we integrated an assay for transposase-accessible chromatin by sequencing (ATAC-seq) and RNA sequencing (RNA-seq) to identify the key genes and pathways involved in the neuroprotection of SAM against PND. Our RNA-seq data demonstrated that genes involved in biological processes such as Wnt signaling, inflammatory response, transcription and long-term potentiation likely mediate the neuroprotection of SAM. Our ATAC-seq data provided comprehensive maps of chromatin accessibility changes induced by laparotomy and laparotomy + SAM treatment, and functional annotation of the regions with high variations in chromatin accessibility highlighted the role of the Wnt signaling pathway in PND pathogenesis and SAM treatment. Further motif analysis identified key transcription factors (e.g., CTCF, TFDP1, TCFL5, KLF15, ZBTB14, TFAP2E) that may participate in the neuroprotection of SAM. In conclusion, the current study provides an epigenomic perspective to understand the pathogenesis of PND and its treatment by SAM.
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Affiliation(s)
- Feifei Xu
- Department of Anesthesiology and Perioperative Medicine, Xijing Hospital, Fourth Military Medical University, Xi’an 710032, China
| | - Peilin Cong
- Department of Anesthesiology and Perioperative Medicine, Shanghai Fourth People’s Hospital Affiliated to Tongji University School of Medicine, Translational Research Institute of Brain and Brain-Like Intelligence Affiliated to Tongji University School of Medicine, Shanghai Key Laboratory of Brain and Functional Modulation, Shanghai 200434, China
| | - Zhihong Lu
- Department of Anesthesiology and Perioperative Medicine, Xijing Hospital, Fourth Military Medical University, Xi’an 710032, China
| | - Liwen Shi
- Department of Anesthesiology and Perioperative Medicine, Xijing Hospital, Fourth Military Medical University, Xi’an 710032, China
| | - Lize Xiong
- Department of Anesthesiology and Perioperative Medicine, Xijing Hospital, Fourth Military Medical University, Xi’an 710032, China
- Department of Anesthesiology and Perioperative Medicine, Shanghai Fourth People’s Hospital Affiliated to Tongji University School of Medicine, Translational Research Institute of Brain and Brain-Like Intelligence Affiliated to Tongji University School of Medicine, Shanghai Key Laboratory of Brain and Functional Modulation, Shanghai 200434, China
- Corresponding author at: Department of Anesthesiology and Perioperative Medicine, Shanghai Fourth People’s Hospital Affiliated to Tongji University School of Medicine, Translational Research Institute of Brain and Brain-Like Intelligence Affiliated to Tongji University School of Medicine, Shanghai Key Laboratory of Brain and Functional Modulation, Shanghai 200434, China.
| | - Guanghou Zhao
- School of Ecology and Environment, Northwestern Polytechnical University, Xi'an 710129, China
- Corresponding author.
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