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Tang W, Yan C, He S, Du M, Cheng B, Deng B, Zhu S, Li Y, Wang Q. Neuron-targeted overexpression of caveolin-1 alleviates diabetes-associated cognitive dysfunction via regulating mitochondrial fission-mitophagy axis. Cell Commun Signal 2023; 21:357. [PMID: 38102662 PMCID: PMC10722701 DOI: 10.1186/s12964-023-01328-5] [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: 02/11/2023] [Accepted: 09/19/2023] [Indexed: 12/17/2023] Open
Abstract
BACKGROUND Type 2 diabetes mellitus (T2DM) induced diabetes-associated cognitive dysfunction (DACD) that seriously affects the self-management of T2DM patients, is currently one of the most severe T2DM-associated complications, but the mechanistic basis remains unclear. Mitochondria are highly dynamic organelles, whose function refers to a broad spectrum of features such as mitochondrial dynamics, mitophagy and so on. Mitochondrial abnormalities have emerged as key determinants for cognitive function, the relationship between DACD and mitochondria is not well understood. METHODS Here, we explored the underlying mechanism of mitochondrial dysfunction of T2DM mice and HT22 cells treated with high glucose/palmitic acid (HG/Pal) focusing on the mitochondrial fission-mitophagy axis with drug injection, western blotting, Immunofluorescence, and electron microscopy. We further explored the potential role of caveolin-1 (cav-1) in T2DM induced mitochondrial dysfunction and synaptic alteration through viral transduction. RESULTS As previously reported, T2DM condition significantly prompted hippocampal mitochondrial fission, whereas mitophagy was blocked rather than increasing, which was accompanied by dysfunctional mitochondria and impaired neuronal function. By contrast, Mdivi-1 (mitochondrial division inhibitor) and urolithin A (mitophagy activator) ameliorated mitochondrial and neuronal function and thereafter lead to cognitive improvement by inhibiting excessive mitochondrial fission and giving rise to mitophagy, respectively. We have previously shown that cav-1 can significantly improve DACD by inhibiting ferroptosis. Here, we further demonstrated that cav-1 could not only inhibit mitochondrial fission via the interaction with GSK3β to modulate Drp1 pathway, but also rescue mitophagy through interacting with AMPK to activate PINK1/Parkin and ULK1-dependent signlings. CONCLUSIONS Overall, our data for the first time point to a mitochondrial fission-mitophagy axis as a driver of neuronal dysfunction in a phenotype that was exaggerated by T2DM, and the protective role of cav-1 in DACD. Graphic Summary Illustration. In T2DM, excessive mitochondrial fission and impaired mitophagy conspire to an altered mitochondrial morphology and mitochondrial dysfunction, with a consequent neuronal damage, overall suggesting an unbalanced mitochondrial fission-mitophagy axis. Upon cav-1 overexpression, GSK3β and AMPK are phosphorylated respectively to activate Drp1 and mitophagy-related pathways (PINK1 and ULKI), ultimately inhibits mitochondrial fission and enhances mitophagy. In the meantime, the mitochondrial morphology and neuronal function are rescued, indicating the protective role of cav-1 on mitochondrial fission-mitophagy axis. Video Abstract.
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Affiliation(s)
- Wenxin Tang
- Department of Anesthesiology & Center for Brain Science, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, Shanxi, China
- Department of Anesthesiology and Perioperative Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, China
| | - Chaoying Yan
- Department of Anesthesiology & Center for Brain Science, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, Shanxi, China
| | - Shuxuan He
- Department of Anesthesiology & Center for Brain Science, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, Shanxi, China
| | - Mengyu Du
- Department of Anesthesiology & Center for Brain Science, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, Shanxi, China
| | - Bo Cheng
- Department of Anesthesiology & Center for Brain Science, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, Shanxi, China
| | - Bin Deng
- Department of Anesthesiology & Center for Brain Science, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, Shanxi, China
| | - Shan Zhu
- Department of Anesthesiology & Center for Brain Science, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, Shanxi, China
| | - Yansong Li
- Department of Anesthesiology & Center for Brain Science, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, Shanxi, China.
| | - Qiang Wang
- Department of Anesthesiology & Center for Brain Science, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, Shanxi, China.
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Li T, Tao X, Sun R, Han C, Li X, Zhu Z, Li W, Huang P, Gong W. Cognitive-exercise dual-task intervention ameliorates cognitive decline in natural aging rats via inhibiting the promotion of LncRNA NEAT1/miR-124-3p on caveolin-1-PI3K/Akt/GSK3β Pathway. Brain Res Bull 2023; 202:110761. [PMID: 37714275 DOI: 10.1016/j.brainresbull.2023.110761] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Revised: 09/09/2023] [Accepted: 09/11/2023] [Indexed: 09/17/2023]
Abstract
Aging-related cognitive impairment (ARCI) is rapidly becoming a healthcare priority. However, there is currently no excellent cure for it. Cognitive-exercise dual-task intervention (CEDI) is a promising method to improve ARCI, while the underlying mechanisms remain unclear. Long non-coding RNAs (lncRNAs) and microRNAs (miRNAs) are involved in the onset, development, and rehabilitation of ARCI. This study aimed to investigate the effects of CEDI and the role of regulation of the lncRNA NEAT1/miR-124-3p on the caveolin-1-PI3K/Akt/GSK3β pathway in CEDI improving cognitive function. Forty 18-month-old natural aging rats were randomly assigned to four groups: exercise training group, cognitive training group, CEDI group, and aging control group, and underwent 12 weeks of intervention. A novel object recognition test was performed to determine the cognitive function, and the hippocampus was separated three days after the behavioral tests for further molecular detection. In an in vitro study, the mouse hippocampal neuronal cell line HT22 was cultured. MiR-124-3p and lncRNA NEAT1 were over-expressed or down-expressed, respectively. The expressions of related proteins, lncRNA, and miRNA were examined by WB and/or qRT-PCR. The results showed that compared with the aging control group, the CEDI group had a higher discrimination index, and significantly decreased the expressions of lncRNA NEAT1, and the protein expressions of caveolin-1 and p-GSK3β, while significantly increased the expressions of miR-124-3p, and the protein expressions of p-PI3K and p-Akt. Inhibition of the lncRNA NEAT1 could significantly increase the protein expressions of p-PI3K and p-Akt in HT22 cells. Upregulation of miR-124-3p decreased the protein expressions of caveolin-1 and p-GSK3β, and increased the protein expressions of p-PI3K and p-Akt significantly. Inhibition of miR-124-3p had the opposite effects. Our study demonstrated that CEDI improved cognitive function in aging rats better than a single intervention. The mechanisms of cognitive improvement could be related to the regulation of the lncRNA NEAT1/miR-124-3p on the caveolin-1-PI3K/Akt/GSK3β pathway.
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Affiliation(s)
- Tiancong Li
- Beijing Rehabilitation Hospital, Beijing Rehabilitation Medicine Academy, Capital Medical University, Beijing, China
| | - Xue Tao
- Department of Research, Beijing Rehabilitation Hospital, Capital Medical University, Beijing, China
| | - Ruifeng Sun
- Beijing Rehabilitation Hospital, Beijing Rehabilitation Medicine Academy, Capital Medical University, Beijing, China
| | - Conglin Han
- Rehabilitation Medicine Academy, Weifang Medical University, Weifang, Shandong, China
| | - Xiaoling Li
- Department of Neurological Rehabilitation, Beijing Rehabilitation Hospital, Capital Medical University, Beijing, China
| | - Ziman Zhu
- Beijing Rehabilitation Hospital, Beijing Rehabilitation Medicine Academy, Capital Medical University, Beijing, China
| | - Wenshan Li
- Beijing Rehabilitation Hospital, Beijing Rehabilitation Medicine Academy, Capital Medical University, Beijing, China
| | - Peiling Huang
- Department of Neurological Rehabilitation, Beijing Rehabilitation Hospital, Capital Medical University, Beijing, China
| | - Weijun Gong
- Beijing Rehabilitation Hospital, Beijing Rehabilitation Medicine Academy, Capital Medical University, Beijing, China; Department of Neurological Rehabilitation, Beijing Rehabilitation Hospital, Capital Medical University, Beijing, China.
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Na Y, Ke L, Jie Z, Jinping W, Tao M, Jie Z, Liu Y, Yueqin Z. Amelioration of Cholesterol Rich diet-induced Impaired Cognition in AD Transgenic Mice by an LXR Agonist TO901317 Is Associated with the Activation of the LXR-β-RXR-α-ABCA1 Transmembrane Transport System and Improving the Composition of Lipid Raft. Exp Aging Res 2023; 49:214-225. [PMID: 35792710 DOI: 10.1080/0361073x.2022.2095605] [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: 09/30/2021] [Accepted: 06/26/2022] [Indexed: 11/04/2022]
Abstract
BACKGROUND It has been reported that LXR agonist can inhibit Aβ generation and alleviate Aβ-induced various adverse reactions in vivo and in vitro experiments, but the mechanisms have not been clarified. The study aimed to observe the effect of LXR agonist TO901317 on the cognitive function of AD transgenic mice fed with cholesterol-rich diet (CRD), and to explore the possible mechanism. Methods: 32 male 6-month-old double transgenic AD mice were enrolled and randomly divided into 4 groups: control (normal diet) group, CRD treatment group, TO901317 treatment group and GSK2033 treatment group. After 3 month, Morris water maze was for the changes of spatial exploration and memory ability; ELISA was for detecting the production of Aβ42 in the brain; the concentration of total cholesterol (TC), low density lipoprotein (LDL) and high density lipoprotein (HDL) in serum were detected by cholesterol enzyme colorimetry; Finally, the expression of LXR-β, RXR-α, ABCA1, caveolin-1, BACE1 and APP at protein level in the brains was measured by Western blotting. RESULTS Compared with the control group, the learning, memory ability and spatial exploration ability of the mice were more significantly serious in the CRD group (P<0.05); The contents of TC and LDL in the serum and the production of Aβ42 in the brains were significantly increased (P<0.05), but HDL was remarkably decreased (P<0.05); The protein levels of LXR-β, RXR-α and ABCA1 were also significantly decreased (P<0.05); The expression of caveolin-1, APP and BACE1 were evidently increased (P<0.05). However, after treatment with TO901317, the impaired learning and memory and spatial exploration ability of the mice were significantly improved (P<0.05); The contents of TC and LDL in serum and the production of Aβ42 in the brains were significantly decreased (P<0.05), but HLD was increased (P<0.05); The protein levels of LXR-β, RXR-α, ABCA1were all significantly increased (P<0.05), while, the expression of caveolin-1, APP and BACE1 were all significantly decreased (P<0.05). All the changes were reversed by GSK2033 (P<0.05). CONCLUSIONS TO901317 attenuated the more serious impairment of spatial exploration, learning and memory in transgenic AD mice induced by CRD, and the mechanism may be that TO901317 could activate the LXR-β/RXR-α/ABCA1 transmembrane transport system, promote the cholesterol efflux, and decreased caveolin-1, APP and BACE1, further reduce Aβ42 in the brains.
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Affiliation(s)
- Yang Na
- Chongqing Emergence Medical Center, Chongqing University Central Hopital, Chongqing, Sichuan, China
| | - Lin Ke
- Chongqing Emergence Medical Center, Chongqing University Central Hopital, Chongqing, Sichuan, China
| | - Zhang Jie
- Chongqing Emergence Medical Center, Chongqing University Central Hopital, Chongqing, Sichuan, China
| | - Wang Jinping
- Chongqing Emergence Medical Center, Chongqing University Central Hopital, Chongqing, Sichuan, China
| | - Meng Tao
- Chongqing Emergence Medical Center, Chongqing University Central Hopital, Chongqing, Sichuan, China
| | - Zhu Jie
- Chongqing Emergence Medical Center, Chongqing University Central Hopital, Chongqing, Sichuan, China
| | - Yang Liu
- Chongqing Emergence Medical Center, Chongqing University Central Hopital, Chongqing, Sichuan, China
| | - Zhou Yueqin
- Chongqing Emergence Medical Center, Chongqing University Central Hopital, Chongqing, Sichuan, China
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Adey BN, Cooper-Knock J, Al Khleifat A, Fogh I, van Damme P, Corcia P, Couratier P, Hardiman O, McLaughlin R, Gotkine M, Drory V, Silani V, Ticozzi N, Veldink JH, van den Berg LH, de Carvalho M, Pinto S, Mora Pardina JS, Povedano Panades M, Andersen PM, Weber M, Başak NA, Shaw CE, Shaw PJ, Morrison KE, Landers JE, Glass JD, Vourc’h P, Dobson RJB, Breen G, Al-Chalabi A, Jones AR, Iacoangeli A. Large-scale analyses of CAV1 and CAV2 suggest their expression is higher in post-mortem ALS brain tissue and affects survival. Front Cell Neurosci 2023; 17:1112405. [PMID: 36937187 PMCID: PMC10017967 DOI: 10.3389/fncel.2023.1112405] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Accepted: 02/06/2023] [Indexed: 03/06/2023] Open
Abstract
Introduction: Caveolin-1 and Caveolin-2 (CAV1 and CAV2) are proteins associated with intercellular neurotrophic signalling. There is converging evidence that CAV1 and CAV2 (CAV1/2) genes have a role in amyotrophic lateral sclerosis (ALS). Disease-associated variants have been identified within CAV1/2 enhancers, which reduce gene expression and lead to disruption of membrane lipid rafts. Methods: Using large ALS whole-genome sequencing and post-mortem RNA sequencing datasets (5,987 and 365 tissue samples, respectively), and iPSC-derived motor neurons from 55 individuals, we investigated the role of CAV1/2 expression and enhancer variants in the ALS phenotype. Results: We report a differential expression analysis between ALS cases and controls for CAV1 and CAV2 genes across various post-mortem brain tissues and three independent datasets. CAV1 and CAV2 expression was consistently higher in ALS patients compared to controls, with significant results across the primary motor cortex, lateral motor cortex, and cerebellum. We also identify increased survival among carriers of CAV1/2 enhancer mutations compared to non-carriers within Project MinE and slower progression as measured by the ALSFRS. Carriers showed a median increase in survival of 345 days. Discussion: These results add to an increasing body of evidence linking CAV1 and CAV2 genes to ALS. We propose that carriers of CAV1/2 enhancer mutations may be conceptualised as an ALS subtype who present a less severe ALS phenotype with a longer survival duration and slower progression. Upregulation of CAV1/2 genes in ALS cases may indicate a causal pathway or a compensatory mechanism. Given prior research supporting the beneficial role of CAV1/2 expression in ALS patients, we consider a compensatory mechanism to better fit the available evidence, although further investigation into the biological pathways associated with CAV1/2 is needed to support this conclusion.
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Affiliation(s)
- Brett N. Adey
- Social Genetic and Developmental Psychiatry Centre, Institute of Psychiatry, Psychology and Neuroscience, King’s College London, London, United Kingdom
- Department of Biostatistics and Health Informatics, Institute of Psychiatry, Psychology and Neuroscience, King’s College London, London, United Kingdom
| | - Johnathan Cooper-Knock
- Sheffield Institute for Translational Neuroscience (SITraN), University of Sheffield, Sheffield, United Kingdom
| | - Ahmad Al Khleifat
- Department of Basic and Clinical Neuroscience, Maurice Wohl Clinical Neuroscience Institute, Institute of Psychiatry, Psychology and Neuroscience, King’s College London, London, United Kingdom
| | - Isabella Fogh
- Department of Basic and Clinical Neuroscience, Maurice Wohl Clinical Neuroscience Institute, Institute of Psychiatry, Psychology and Neuroscience, King’s College London, London, United Kingdom
| | - Philip van Damme
- Department of Neurosciences, KU Leuven-University of Leuven, Experimental Neurology and Leuven Brain Institute (LBI), Leuven, Belgium
- VIB, Center for Brain and Disease Research, Leuven, Belgium
- Department of Neurology, University Hospitals Leuven, Leuven, Belgium
| | - Philippe Corcia
- UMR 1253, Université de Tours, Inserm, Tours, France
- Centre de référence sur la SLA, CHU de Tours, Tours, France
| | - Philippe Couratier
- Centre de référence sur la SLA, CHRU de Limoges, Limoges, France
- UMR 1094, Université de Limoges, Inserm, Limoges, France
| | - Orla Hardiman
- Academic Unit of Neurology, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin, Ireland
| | - Russell McLaughlin
- Complex Trait Genomics Laboratory, Smurfit Institute of Genetics, Trinity College Dublin, Dublin, Ireland
| | - Marc Gotkine
- Faculty of Medicine, Hebrew University of Jerusalem, Jerusalem, Israel
- Agnes Ginges Center for Human Neurogenetics, Department of Neurology, Hadassah Medical Center, Jerusalem, Israel
| | - Vivian Drory
- Department of Neurology, Tel-Aviv Sourasky Medical Centre, Tel-Aviv, Israel
- Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israel
| | - Vincenzo Silani
- Department of Neurology and Laboratory of Neuroscience, Istituto Auxologico Italiano, IRCCS, Milan, Italy
- Department of Pathophysiology and Transplantation, “Dino Ferrari” Center, Università degli Studi di Milano, Milan, Italy
| | - Nicola Ticozzi
- Department of Neurology and Laboratory of Neuroscience, Istituto Auxologico Italiano, IRCCS, Milan, Italy
- Department of Pathophysiology and Transplantation, “Dino Ferrari” Center, Università degli Studi di Milano, Milan, Italy
| | - Jan H. Veldink
- Department of Neurology, UMC Utrecht Brain Center, University Medical Center Utrecht, Utrecht, Netherlands
| | - Leonard H. van den Berg
- Department of Neurology, UMC Utrecht Brain Center, University Medical Center Utrecht, Utrecht, Netherlands
| | - Mamede de Carvalho
- Instituto de Fisiologia, Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal
| | - Susana Pinto
- Instituto de Fisiologia, Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal
| | | | - Mónica Povedano Panades
- Functional Unit of Amyotrophic Lateral Sclerosis (UFELA), Service of Neurology, Bellvitge University Hospital, L’Hospitalet de Llobregat, Barcelona, Spain
| | | | - Markus Weber
- Neuromuscular Diseases Unit/ALS Clinic, St. Gallen, Switzerland
| | - Nazli A. Başak
- Koc University School of Medicine, Translational Medicine Research Center, NDAL, Istanbul, Turkey
| | - Christopher E. Shaw
- Department of Basic and Clinical Neuroscience, Maurice Wohl Clinical Neuroscience Institute, Institute of Psychiatry, Psychology and Neuroscience, King’s College London, London, United Kingdom
| | - Pamela J. Shaw
- Sheffield Institute for Translational Neuroscience (SITraN), University of Sheffield, Sheffield, United Kingdom
| | - Karen E. Morrison
- School of Medicine, Dentistry and Biomedical Sciences, Queen’s University Belfast, Belfast, United Kingdom
| | - John E. Landers
- Department of Neurology, University of Massachusetts Medical School, Worcester, MA, United States
| | - Jonathan D. Glass
- Department of Neurology, Emory University School of Medicine, Atlanta, GA, United States
| | - Patrick Vourc’h
- Department of Neurology, University Hospitals Leuven, Leuven, Belgium
- Service de Biochimie et Biologie molécularie, CHU de Tours, Tours, France
| | - Richard J. B. Dobson
- Department of Biostatistics and Health Informatics, Institute of Psychiatry, Psychology and Neuroscience, King’s College London, London, United Kingdom
- National Institute for Health Research Biomedical Research Centre and Dementia Unit at South London and Maudsley NHS Foundation Trust and King’s College London, London, United Kingdom
- Institute of Health Informatics, University College London, London, United Kingdom
- NIHR Biomedical Research Centre at University College London Hospitals, NHS Foundation Trust, London, United Kingdom
| | - Gerome Breen
- Social Genetic and Developmental Psychiatry Centre, Institute of Psychiatry, Psychology and Neuroscience, King’s College London, London, United Kingdom
| | - Ammar Al-Chalabi
- Department of Basic and Clinical Neuroscience, Maurice Wohl Clinical Neuroscience Institute, Institute of Psychiatry, Psychology and Neuroscience, King’s College London, London, United Kingdom
- King’s College Hospital, London, United Kingdom
| | - Ashley R. Jones
- Department of Basic and Clinical Neuroscience, Maurice Wohl Clinical Neuroscience Institute, Institute of Psychiatry, Psychology and Neuroscience, King’s College London, London, United Kingdom
| | - Alfredo Iacoangeli
- Department of Biostatistics and Health Informatics, Institute of Psychiatry, Psychology and Neuroscience, King’s College London, London, United Kingdom
- Department of Basic and Clinical Neuroscience, Maurice Wohl Clinical Neuroscience Institute, Institute of Psychiatry, Psychology and Neuroscience, King’s College London, London, United Kingdom
- National Institute for Health Research Biomedical Research Centre and Dementia Unit at South London and Maudsley NHS Foundation Trust and King’s College London, London, United Kingdom
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Ji C, Yang Y, Fu Y, Pu X, Xu G. Improvement of Ganoderma lucidum water extract on the learning and memory impairment and its mechanism in d-galactose-induced aging mice. J Funct Foods 2022. [DOI: 10.1016/j.jff.2022.105322] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
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Tang W, Li Y, He S, Jiang T, Wang N, Du M, Cheng B, Gao W, Li Y, Wang Q. Caveolin-1 Alleviates Diabetes-Associated Cognitive Dysfunction Through Modulating Neuronal Ferroptosis-Mediated Mitochondrial Homeostasis. Antioxid Redox Signal 2022; 37:867-886. [PMID: 35350885 DOI: 10.1089/ars.2021.0233] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Aims: Iron metabolism is involved in many biological processes in the brain. Alterations in iron homeostasis have been associated with several neurodegenerative disorders. Instead of stroke and ischemic heart disease, dementia has become the second leading cause of mortality among the type 2 diabetes mellitus (T2DM) population. Therefore, we attempted to investigate the role of ferroptosis in diabetes-associated cognitive dysfunction (DACD). Results: We evaluated ferroptosis hallmarks in the hippocampus of T2DM (high-fat diet/streptozotocin, HFD/STZ) mice, primary hippocampal neurons, as well as in the blood of patients. The results of Gene Set Enrichment Analysis showed significantly differentially expressed genes related to ferroptosis-related pathways between normal control (db/m) and leptin receptor-deficient (db/db) mice. Here, ferroptosis, mitochondrial dysfunction and cognitive impairment were revealed, and caveolin-1 (cav-1) was significantly downregulated in the hippocampus of T2DM (HFD/STZ) mice. In addition, ferrostatin-1 and cav-1 restoration neutralized ferroptosis-related symbolic changes, mitochondrial dysfunction, and improved cognitive dysfunction. Notably, the plasma levels of Fe2+ and 4-hydroxynonenal (4-HNE) in T2DM patients showed a tendency to increase compared with those in nondiabetic subjects, and the Fe2+ level was negatively correlated with the cognitive ability in T2DM subjects. Innovation: For the first time, this study suggested that ferroptosis promoted the progression of DACD induced by T2DM both in vivo and in vitro, and supported the clinical evidence for the correlation between ferroptosis and T2DM-related DACD, which provided new insights into the potential antioxidant effects of ferroptosis inhibitors and cav-1 on DACD. Conclusions: The overexpression of cav-1 may attenuate DACD by modulating neuronal ferroptosis-mediated mitochondrial homeostasis. We put cav-1 on the spotlight as a promising candidate to prevent DACD. Antioxid. Redox Signal. 37, 867-886.
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Affiliation(s)
- Wenxin Tang
- Department of Anesthesiology and Center for Brain Science, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Yansong Li
- Department of Anesthesiology and Center for Brain Science, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Shuxuan He
- Department of Anesthesiology and Center for Brain Science, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Tao Jiang
- Department of Anesthesiology and Center for Brain Science, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Nan Wang
- Department of Anesthesiology and Center for Brain Science, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Mengyu Du
- Department of Anesthesiology and Center for Brain Science, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Bo Cheng
- Department of Anesthesiology and Center for Brain Science, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Wei Gao
- Department of Anesthesiology and Center for Brain Science, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Yan Li
- Department of Anesthesiology and Center for Brain Science, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Qiang Wang
- Department of Anesthesiology and Center for Brain Science, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
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Qu J, Zhang S, He W, Liu S, Mao X, Yin L, Yue D, Zhang P, Huang K, Chen X. Crucial Function of Caveolin-1 in Deoxynivalenol-Induced Enterotoxicity by Activating ROS-Dependent NLRP3 Inflammasome-Mediated Pyroptosis. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2022; 70:12968-12981. [PMID: 36166599 DOI: 10.1021/acs.jafc.2c04854] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Deoxynivalenol (DON) is one of the most pervasive contaminating mycotoxins in grain, and exposure to DON is known to cause acute and chronic intestinal damage. As the gut is the most important target organ of DON, it is essential to identify the pivotal molecules involved in DON-induced enterotoxicity as well as the potential regulatory mechanisms. In the present study, we found that DON treatment dramatically decreased the jejunal villus height and increased the crypt depth in mice. DON exposure induced oxidative stress and NLRP3 inflammasome activation while increasing the levels of pyroptosis-related factors GSDMD, ASC, Caspase-1 P20, and IL-1β and inflammatory cytokines IL-18, TNF-α, and IL-6. In vitro, 0.5-2 μM DON caused cytotoxicity and oxidative stress, as well as NLRP3-mediated pyroptosis in IPEC-J2 cells. Furthermore, DON treatment substantially improved the expression of Caveolin-1 (Cav-1) in vitro and in vivo. Interestingly, Cav-1 knockdown effectively attenuated DON-induced oxidative stress and NLRP3-mediated pyroptosis in IPEC-J2 cells. Meanwhile, treatment with the antioxidant NAC significantly alleviated DON-induced cytotoxicity and pyroptosis in IPEC-J2 cells. Likewise, after inhibiting NLRP3 inflammasome activation with the inhibitor MCC950, DON-induced cytotoxicity, pyroptosis, and inflammatory response were attenuated. However, NLRP3 inhibition did not affect Cav-1 expression. In conclusion, our study demonstrated that pyroptosis may be an underlying mechanism in DON-induced intestinal injury, and Cav-1 plays a pivotal role in DON-induced pyroptosis via regulating oxidative stress, which suggests a novel strategy to overcome DON-induced enterotoxicity.
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Affiliation(s)
- Jie Qu
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, Jiangsu 210095, China
- Institute of Animal Nutritional Health, Nanjing Agricultural University, Nanjing, Jiangsu 210095, China
| | - Shuangshuang Zhang
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, Jiangsu 210095, China
- Institute of Animal Nutritional Health, Nanjing Agricultural University, Nanjing, Jiangsu 210095, China
| | - Wenmiao He
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, Jiangsu 210095, China
- Institute of Animal Nutritional Health, Nanjing Agricultural University, Nanjing, Jiangsu 210095, China
| | - Shuiping Liu
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, Jiangsu 210095, China
- Institute of Animal Nutritional Health, Nanjing Agricultural University, Nanjing, Jiangsu 210095, China
| | - Xinru Mao
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, Jiangsu 210095, China
- Institute of Animal Nutritional Health, Nanjing Agricultural University, Nanjing, Jiangsu 210095, China
| | - Liuwen Yin
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, Jiangsu 210095, China
- Institute of Animal Nutritional Health, Nanjing Agricultural University, Nanjing, Jiangsu 210095, China
| | - Dongmei Yue
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, Jiangsu 210095, China
- Institute of Animal Nutritional Health, Nanjing Agricultural University, Nanjing, Jiangsu 210095, China
| | - Ping Zhang
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, Jiangsu 210095, China
- Institute of Animal Nutritional Health, Nanjing Agricultural University, Nanjing, Jiangsu 210095, China
| | - Kehe Huang
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, Jiangsu 210095, China
- Institute of Animal Nutritional Health, Nanjing Agricultural University, Nanjing, Jiangsu 210095, China
| | - Xingxiang Chen
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, Jiangsu 210095, China
- Institute of Animal Nutritional Health, Nanjing Agricultural University, Nanjing, Jiangsu 210095, China
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Caveolin-1 identified as a key mediator of acute lung injury using bioinformatics and functional research. Cell Death Dis 2022; 13:686. [PMID: 35933468 PMCID: PMC9357074 DOI: 10.1038/s41419-022-05134-8] [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] [Received: 04/20/2022] [Revised: 07/21/2022] [Accepted: 07/25/2022] [Indexed: 01/21/2023]
Abstract
Acute lung injury (ALI) is a potentially life-threatening, devastating disease with an extremely high rate of mortality. The underlying mechanism of ALI is currently unclear. In this study, we aimed to confirm the hub genes associated with ALI and explore their functions and molecular mechanisms using bioinformatics methods. Five microarray datasets available in GEO were used to perform Robust Rank Aggregation (RRA) to identify differentially expressed genes (DEGs) and the key genes were identified via the protein-protein interaction (PPI) network. Lipopolysaccharide intraperitoneal injection was administered to establish an ALI model. Overall, 40 robust DEGs, which are mainly involved in the inflammatory response, protein catabolic process, and NF-κB signaling pathway were identified. Among these DEGs, we identified two genes associated with ALI, of which the CAV-1/NF-κB axis was significantly upregulated in ALI, and was identified as one of the most effective targets for ALI prevention. Subsequently, the expression of CAV-1 was knocked down using AAV-shCAV-1 or CAV-1-siRNA to study its effect on the pathogenesis of ALI in vivo and in vitro. The results of this study indicated that CAV-1/NF-κB axis levels were elevated in vivo and in vitro, accompanied by an increase in lung inflammation and autophagy. The knockdown of CAV-1 may improve ALI. Mechanistically, inflammation was reduced mainly by decreasing the expression levels of CD3 and F4/80, and activating autophagy by inhibiting AKT/mTOR and promoting the AMPK signaling pathway. Taken together, this study provides crucial evidence that CAV-1 knockdown inhibits the occurrence of ALI, suggesting that the CAV-1/NF-κB axis may be a promising therapeutic target for ALI treatment.
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Mesa-Herrera F, Marín R, Torrealba E, Santos G, Díaz M. Neuronal ER-Signalosome Proteins as Early Biomarkers in Prodromal Alzheimer's Disease Independent of Amyloid-β Production and Tau Phosphorylation. Front Mol Neurosci 2022; 15:879146. [PMID: 35600079 PMCID: PMC9119323 DOI: 10.3389/fnmol.2022.879146] [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: 02/18/2022] [Accepted: 03/22/2022] [Indexed: 01/18/2023] Open
Abstract
There exists considerable interest to unveil preclinical period and prodromal stages of Alzheimer's disease (AD). The mild cognitive impairment (MCI) is characterized by significant memory and/or other cognitive domains impairments, and is often considered the prodromal phase of AD. The cerebrospinal fluid (CSF) levels of β-amyloid (βA), total tau (t-tau), and phosphorylated tau (p-tau) have been used as biomarkers of AD albeit their significance as indicators during early stages of AD remains far from accurate. The new biomarkers are being intensively sought as to allow identification of pathological processes underlying early stages of AD. Fifty-three participants (75.4 ± 8.3 years) were classified in three groups as cognitively normal healthy controls (HC), MCI, and subjective memory complaints (SMC). The subjects were subjected to a battery of neurocognitive tests and underwent lumbar puncture for CSF extraction. The CSF levels of estrogen-receptor (ER)-signalosome proteins, βA, t-tau and p-tau, were submitted to univariate, bivariate, and multivariate statistical analyses. We have found that the components of the ER-signalosome, namely, caveolin-1, flotilin-1, and estrogen receptor alpha (ERα), insulin growth factor-1 receptor β (IGF1Rβ), prion protein (PrP), and plasmalemmal voltage dependent anion channel 1 (VDAC) could be detected in the CSF from all subjects of the HC, MCI, and SMC groups. The six proteins appeared elevated in MCI and slightly increased in SMC subjects compared to HC, suggesting that signalosome proteins undergo very early modifications in nerve cells. Using a multivariate approach, we have found that the combination of ERα, IGF-1Rβ, and VDAC are the main determinants of group segregation with resolution enough to predict the MCI stage. The analyses of bivariate relationships indicated that collinearity of ER-signalosome proteins vary depending on the stage, with some pairs displaying opposed relationships between HC and MCI groups, and the SMC stage showing either no relationships or behaviors similar to either HC or MCI stages. The multinomial logistic regression models of changes in ER-signalosome proteins provide reliable predictive criteria, particularly for the MCI. Notably, most of the statistical analyses revealed no significant relationships or interactions with classical AD biomarkers at either disease stage. Finally, the multivariate functions were highly correlated with outcomes from neurocognitive tests for episodic memory. These results demonstrate that alterations in ER-signalosome might provide useful diagnostic information on preclinical stages of AD, independently from classical biomarkers.
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Affiliation(s)
- Fátima Mesa-Herrera
- Laboratory of Membrane Physiology and Biophysics, Department of Animal Biology, Edaphology and Geology, Biology Section, Science School, Universidad de La Laguna, San Cristóbal de La Laguna, Spain
| | - Raquel Marín
- Laboratory of Cellular Neurobiology, Department of Basic Medical Sciences, Medicine Section, Health Sciences School, Universidad de La Laguna, San Cristóbal de La Laguna, Spain
- Associate Research Unit ULL-CSIC “Membrane Physiology and Biophysics in Neurodegenerative and Cancer Diseases”, University of La Laguna, San Cristóbal de La Laguna, Spain
- Instituto Universitario de Neurociencias (IUNE), Universidad de La Laguna, San Cristóbal de La Laguna, Spain
| | - Eduardo Torrealba
- Department of Neurology, Hospital Universitario de Gran Canaria Dr. Negrín, Las Palmas de Gran Canaria, Spain
| | - Guido Santos
- Systems Biology and Mathematical Modelling Group, Department of Department of Biochemistry, Microbiology, Cell Biology and Genetics Biology Section, Science School, Universidad de La Laguna, San Cristóbal de La Laguna, Spain
| | - Mario Díaz
- Instituto Universitario de Neurociencias (IUNE), Universidad de La Laguna, San Cristóbal de La Laguna, Spain
- Department of Physics, Faculty of Sciences, Universidad de La Laguna, San Cristóbal de La Laguna, Spain
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Zhang Y, Zhang X, Kong W, Wang S. Reconstitution of Caveolin-1 into Artificial Lipid Membrane: Characterization by Transmission Electron Microscopy and Solid-State Nuclear Magnetic Resonance. Molecules 2021; 26:molecules26206201. [PMID: 34684779 PMCID: PMC8539922 DOI: 10.3390/molecules26206201] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Revised: 10/09/2021] [Accepted: 10/11/2021] [Indexed: 12/26/2022] Open
Abstract
Caveolin-1 (CAV1), a membrane protein that is necessary for the formation and maintenance of caveolae, is a promising drug target for the therapy of various diseases, such as cancer, diabetes, and liver fibrosis. The biology and pathology of caveolae have been widely investigated; however, very little information about the structural features of full-length CAV1 is available, as well as its biophysical role in reshaping the cellular membrane. Here, we established a method, with high reliability and reproducibility, for the expression and purification of CAV1. Amyloid-like properties of CAV1 and its C-terminal peptide CAV1(168-178) suggest a structural basis for the short linear CAV1 assemblies that have been recently observed in caveolin polyhedral cages in Escherichia coli (E. coli). Reconstitution of CAV1 into artificial lipid membranes induces a caveolae-like membrane curvature. Structural characterization of CAV1 in the membrane by solid-state nuclear magnetic resonance (ssNMR) indicate that it is largely α-helical, with very little β-sheet content. Its scaffolding domain adopts a α-helical structure as identified by chemical shift analysis of threonine (Thr). Taken together, an in vitro model was developed for the CAV1 structural study, which will further provide meaningful evidences for the design and screening of bioactive compounds targeting CAV1.
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Affiliation(s)
- Yanli Zhang
- Department of Pharmacy, Qilu Hospital of Shandong University, Cheeloo College of Medicine, Jinan 250012, China;
- Department of Pharmaceutical Sciences, University of Nebraska Medical Center, Omaha, NE 68198, USA;
| | - Xinyan Zhang
- Department of Pharmaceutical Sciences, University of Nebraska Medical Center, Omaha, NE 68198, USA;
| | - Wenru Kong
- School of Pharmaceutical Sciences, Shandong University, Jinan 250012, China;
| | - Shuqi Wang
- School of Pharmaceutical Sciences, Shandong University, Jinan 250012, China;
- Correspondence: ; Tel.: +86-0531-88382014
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