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Hossen F, Sun GY, Lee JC. Oligomeric Tau-induced oxidative damage and functional alterations in cerebral endothelial cells: Role of RhoA/ROCK signaling pathway. Free Radic Biol Med 2024; 221:261-272. [PMID: 38815773 PMCID: PMC11184584 DOI: 10.1016/j.freeradbiomed.2024.05.044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/17/2024] [Revised: 03/22/2024] [Accepted: 05/27/2024] [Indexed: 06/01/2024]
Abstract
Despite of yet unknown mechanism, microvascular deposition of oligomeric Tau (oTau) has been implicated in alteration of the Blood-Brain Barrier (BBB) function in Alzheimer's disease (AD) brains. In this study, we employed an in vitro BBB model using primary mouse cerebral endothelial cells (CECs) to investigate the mechanism underlying the effects of oTau on BBB function. We found that exposing CECs to oTau induced oxidative stress through NADPH oxidase, increased oxidative damage to proteins, decreased proteasome activity, and expressions of tight junction (TJ) proteins including occludin, zonula occludens-1 (ZO-1) and claudin-5. These effects were suppressed by the pretreatment with Fasudil, a RhoA/ROCK signaling inhibitor. Consistent with the biochemical alterations, we found that exposing the basolateral side of CECs to oTau in the BBB model disrupted the integrity of the BBB, as indicated by an increase in FITC-dextran transport across the model, and a decrease in trans endothelial electrical resistance (TEER). oTau also increased the transmigration of peripheral blood mononuclear cells (PBMCs) in the BBB model. These functional alterations in the BBB induced by oTau were also suppressed by Fasudil. Taken together, our findings suggest that targeting the RhoA/ROCK pathway can be a potential therapeutic strategy to maintain BBB function in AD.
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Affiliation(s)
- Faruk Hossen
- Richard and Loan Hill Department of Biomedical Engineering, University of Illinois Chicago, Chicago, IL, 60607, USA
| | - Grace Y Sun
- Biochemistry Department, University of Missouri, Columbia, MO, 65211, USA
| | - James C Lee
- Richard and Loan Hill Department of Biomedical Engineering, University of Illinois Chicago, Chicago, IL, 60607, USA.
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Zhang Z, Wu H, Wang S, Li Y, Yang P, Xu L, Liu Y, Liu M. PRG ameliorates cognitive impairment in Alzheimer's disease mice by regulating β-amyloid and targeting the ERK pathway. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2024; 130:155671. [PMID: 38763005 DOI: 10.1016/j.phymed.2024.155671] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Revised: 03/13/2024] [Accepted: 04/21/2024] [Indexed: 05/21/2024]
Abstract
BACKGROUND PRG is derived from Phellinus ribis and is a homogeneous polysaccharide with well-defined structural information. PRG was found to have significant in vitro neurotrophic and neuroprotective activities. Thus, PRG might be a potential treatment for Alzheimer's disease. However, the related mechanisms of action are still unclear, so deeper in vivo experimental validation and the potential mechanisms need to be investigated. PURPOSE The effects of PRG on AD mice were investigated using Senescence-accelerated SAMP8 mice as an AD model to elucidate the crucial molecular mechanisms. METHODS PRG was obtained from Phellinus ribis by water-alcohol precipitation, column chromatography, and ultrafiltration. The Morris water maze and novel object recognition behavioral assays were used to evaluate the effects of PRG in AD mice. Nissl staining, the TUNEL apoptosis assay, and Golgi staining were used to assess brain neuronal cell damage, apoptosis, and neuronal status. Enzyme-linked immunosorbent assays, Western blotting, and immunofluorescence were used to explore the impacts of correlated factors and protein pathways under relevant mechanisms. RESULTS The findings suggest that PRG improved learning ability and spatial memory capacity in SAMP8 mice. PRG hastened the disintegration of β-amyloid, reduced the content and abnormal accumulation of the toxic Aβ1-42 protein, and decreased apoptosis. PRG activated the BDNF/ERK/CREB signaling pathway through a cascade, exerted neurotrophic effects, regulated cell proliferation and differentiation, increased neuronal dendritic branching and spine density, and improved synaptic plasticity. CONCLUSION PRG promoted β-amyloid degradation to reduce neuronal damage and apoptosis. It exerted neurotrophic effects by activating the BDNF/ERK/CREB pathway, promoting neuronal dendritic branching and dendritic spine growth, regulating cell proliferation and differentiation, and improving synaptic plasticity, which improved AD. Taken together, as a novel natural active polysaccharide with a well-defined structure, PRG affected AD symptoms in senescence-accelerated mice by interacting with multiple targets. The results indicate that PRG is a promising potential anti-AD drug candidate.
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Affiliation(s)
- Zhiyuan Zhang
- School of Pharmaceutical Sciences, Shandong University of Traditional Chinese Medicine, Jinan 250355, China
| | - Haoran Wu
- School of Medicine, Southern University of Science and Technology, Shenzhen 518055, China
| | - Shuai Wang
- School of Pharmaceutical Sciences, Shandong University of Traditional Chinese Medicine, Jinan 250355, China
| | - Yuanyuan Li
- School of Pharmaceutical Sciences, Shandong University of Traditional Chinese Medicine, Jinan 250355, China
| | - Pei Yang
- School of Pharmaceutical Sciences, Shandong University of Traditional Chinese Medicine, Jinan 250355, China
| | - Lingchuan Xu
- School of Pharmaceutical Sciences, Shandong University of Traditional Chinese Medicine, Jinan 250355, China
| | - Yuhong Liu
- School of Pharmaceutical Sciences, Shandong University of Traditional Chinese Medicine, Jinan 250355, China.
| | - Maoxuan Liu
- Center for Protein and Cell-Based Drugs, Institute of Biomedicine and Biotechnology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China.
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He Q, Wang W, Xiong Y, Tao C, Ma L, You C. Potential Biomarkers in Cerebrospinal Fluid and Plasma for Dementia. J Alzheimers Dis 2024:JAD240260. [PMID: 38875042 DOI: 10.3233/jad-240260] [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: 06/16/2024]
Abstract
Background The identification of biomarkers for different dementias in plasma and cerebrospinal fluid (CSF) has made substantial progress. However, they are observational studies, and there remains a lack of research on dementias with low incidence rates. Objective We performed a comprehensive Mendelian randomization to identify potential biomarkers for different dementia type. Methods The summary-level datasets encompassed 734 plasma and 154 cerebrospinal fluid proteins sourced from recently published genome-wide association studies (GWAS). Summary statistics for different dementias, including any dementia (refering to any type of dementia symptoms, 218,792 samples), Alzheimer's disease (AD, 63,926 samples), vascular dementia (212,389 samples), frontotemporal dementia (3,024 samples), dementia with Lewy bodies (DLB, 6,618 samples), and dementia in Parkinson's disease (216,895 samples), were collected from large GWAS. The primary method is inverse variance weighting, with additional sensitivity analyses conducted to ensure the robustness of the findings. Results The molecules released into CSF, namely APOE2 for any dementia, APOE2 and Siglec-3 for AD, APOE2 for vascular dementia, and APOE2 for DLB, might be potential biomarkers. CD33 for AD and SNCA for DLB in plasma could be promising biomarkers. Conclusions This is the first study to integrate plasma and CSF proteins to identify potential biomarkers for different dementias.
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Affiliation(s)
- Qiang He
- Department of Neurosurgery, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Wenjing Wang
- Department of Pharmacy, Institute of Metabolic Diseases and Pharmacotherapy, West China Hospital, Sichuan University, Chengdu, China
| | - Yang Xiong
- Department of Urology, West China Hospital, Sichuan University, Chengdu, China
| | - Chuanyuan Tao
- Department of Neurosurgery, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Lu Ma
- Department of Neurosurgery, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Chao You
- Department of Neurosurgery, West China Hospital, Sichuan University, Chengdu, Sichuan, China
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Glavan M, Jelic A, Levard D, Frösen J, Keränen S, Franx BAA, Bras AR, Louet ER, Dénes Á, Merlini M, Vivien D, Rubio M. CNS-associated macrophages contribute to intracerebral aneurysm pathophysiology. Acta Neuropathol Commun 2024; 12:43. [PMID: 38500201 PMCID: PMC10946177 DOI: 10.1186/s40478-024-01756-5] [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: 12/17/2023] [Accepted: 03/06/2024] [Indexed: 03/20/2024] Open
Abstract
Intracerebral aneurysms (IAs) are pathological dilatations of cerebral arteries whose rupture leads to subarachnoid hemorrhage, a significant cause of disability and death. Inflammation is recognized as a critical contributor to the formation, growth, and rupture of IAs; however, its precise actors have not yet been fully elucidated. Here, we report CNS-associated macrophages (CAMs), also known as border-associated macrophages, as one of the key players in IA pathogenesis, acting as critical mediators of inflammatory processes related to IA ruptures. Using a new mouse model of middle cerebral artery (MCA) aneurysms we show that CAMs accumulate in the IA walls. This finding was confirmed in a human MCA aneurysm obtained after surgical clipping, together with other pathological characteristics found in the experimental model including morphological changes and inflammatory cell infiltration. In addition, in vivo longitudinal molecular MRI studies revealed vascular inflammation strongly associated with the aneurysm area, i.e., high expression of VCAM-1 and P-selectin adhesion molecules, which precedes and predicts the bleeding extent in the case of IA rupture. Specific CAM depletion by intracerebroventricular injection of clodronate liposomes prior to IA induction reduced IA formation and rupture rate. Moreover, the absence of CAMs ameliorated the outcome severity of IA ruptures resulting in smaller hemorrhages, accompanied by reduced neutrophil infiltration. Our data shed light on the unexplored role of CAMs as main actors orchestrating the progression of IAs towards a rupture-prone state.
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Affiliation(s)
- Martina Glavan
- UNICAEN, INSERM U1237, Etablissement Français du Sang, Physiopathology and Imaging of Neurological Disorders (PhIND), Cyceron, Institut Blood and Brain @ Caen-Normandie (BB@C), PHIND Boulevard Henri Becquerel, Normandie University, 14000, Caen Cedex, Caen, France
- Department of Neuroscience, Yale School of Medicine, Yale University, 333 Cedar Street, New Haven, CT, 06510, USA
| | - Ana Jelic
- UNICAEN, INSERM U1237, Etablissement Français du Sang, Physiopathology and Imaging of Neurological Disorders (PhIND), Cyceron, Institut Blood and Brain @ Caen-Normandie (BB@C), PHIND Boulevard Henri Becquerel, Normandie University, 14000, Caen Cedex, Caen, France
| | - Damien Levard
- UNICAEN, INSERM U1237, Etablissement Français du Sang, Physiopathology and Imaging of Neurological Disorders (PhIND), Cyceron, Institut Blood and Brain @ Caen-Normandie (BB@C), PHIND Boulevard Henri Becquerel, Normandie University, 14000, Caen Cedex, Caen, France
| | - Juhana Frösen
- Hemorrhagic Brain Pathology Research Group, Kuopio University Hospital and AIV Institute for Molecular Medicine, University of Eastern Finland, Kuopio, Finland
- Dept of Neurosurgery, Tampere University Hospital and Hemorrhagic Brain Pathology Research Group, Tampere University, Tampere, Finland
| | - Sara Keränen
- Hemorrhagic Brain Pathology Research Group, Kuopio University Hospital and AIV Institute for Molecular Medicine, University of Eastern Finland, Kuopio, Finland
- Dept of Neurosurgery, Tampere University Hospital and Hemorrhagic Brain Pathology Research Group, Tampere University, Tampere, Finland
| | - Bart A A Franx
- Translational Neuroimaging Group, Center for Image Sciences, University Medical Center Utrecht and Utrecht University, Utrecht, The Netherlands
| | - Ana-Rita Bras
- "Momentum" Laboratory of Neuroimmunology, Institute of Experimental Medicine, Budapest, Hungary
- János Szentágothai Doctoral School of Neurosciences, Schools of PhD Studies, Semmelweis University, Budapest, Hungary
| | - Estelle R Louet
- UNICAEN, INSERM U1237, Etablissement Français du Sang, Physiopathology and Imaging of Neurological Disorders (PhIND), Cyceron, Institut Blood and Brain @ Caen-Normandie (BB@C), PHIND Boulevard Henri Becquerel, Normandie University, 14000, Caen Cedex, Caen, France
| | - Ádám Dénes
- "Momentum" Laboratory of Neuroimmunology, Institute of Experimental Medicine, Budapest, Hungary
| | - Mario Merlini
- UNICAEN, INSERM U1237, Etablissement Français du Sang, Physiopathology and Imaging of Neurological Disorders (PhIND), Cyceron, Institut Blood and Brain @ Caen-Normandie (BB@C), PHIND Boulevard Henri Becquerel, Normandie University, 14000, Caen Cedex, Caen, France
| | - Denis Vivien
- UNICAEN, INSERM U1237, Etablissement Français du Sang, Physiopathology and Imaging of Neurological Disorders (PhIND), Cyceron, Institut Blood and Brain @ Caen-Normandie (BB@C), PHIND Boulevard Henri Becquerel, Normandie University, 14000, Caen Cedex, Caen, France
- Department of Clinical Research, Caen Normandie University Hospital, Caen, France
| | - Marina Rubio
- UNICAEN, INSERM U1237, Etablissement Français du Sang, Physiopathology and Imaging of Neurological Disorders (PhIND), Cyceron, Institut Blood and Brain @ Caen-Normandie (BB@C), PHIND Boulevard Henri Becquerel, Normandie University, 14000, Caen Cedex, Caen, France.
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Denes A, Hansen CE, Oezorhan U, Figuerola S, de Vries HE, Sorokin L, Planas AM, Engelhardt B, Schwaninger M. Endothelial cells and macrophages as allies in the healthy and diseased brain. Acta Neuropathol 2024; 147:38. [PMID: 38347307 PMCID: PMC10861611 DOI: 10.1007/s00401-024-02695-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Revised: 01/19/2024] [Accepted: 01/20/2024] [Indexed: 02/15/2024]
Abstract
Diseases of the central nervous system (CNS) are often associated with vascular disturbances or inflammation and frequently both. Consequently, endothelial cells and macrophages are key cellular players that mediate pathology in many CNS diseases. Macrophages in the brain consist of the CNS-associated macrophages (CAMs) [also referred to as border-associated macrophages (BAMs)] and microglia, both of which are close neighbours or even form direct contacts with endothelial cells in microvessels. Recent progress has revealed that different macrophage populations in the CNS and a subset of brain endothelial cells are derived from the same erythromyeloid progenitor cells. Macrophages and endothelial cells share several common features in their life cycle-from invasion into the CNS early during embryonic development and proliferation in the CNS, to their demise. In adults, microglia and CAMs have been implicated in regulating the patency and diameter of vessels, blood flow, the tightness of the blood-brain barrier, the removal of vascular calcification, and the life-time of brain endothelial cells. Conversely, CNS endothelial cells may affect the polarization and activation state of myeloid populations. The molecular mechanisms governing the pas de deux of brain macrophages and endothelial cells are beginning to be deciphered and will be reviewed here.
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Affiliation(s)
- Adam Denes
- "Momentum" Laboratory of Neuroimmunology, Institute of Experimental Medicine, Budapest, Hungary
| | - Cathrin E Hansen
- Department of Molecular Cell Biology and Immunology, Amsterdam UMC Location Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
- Amsterdam Neuroscience, Amsterdam UMC, Amsterdam, The Netherlands
- MS Center Amsterdam, Amsterdam UMC Location VU Medical Center, Amsterdam, The Netherlands
| | - Uemit Oezorhan
- Institute of Experimental and Clinical Pharmacology and Toxicology, Center of Brain, Behavior and Metabolism, University of Lübeck, Lübeck, Germany
| | - Sara Figuerola
- Department of Neuroscience and Experimental Therapeutics, Instituto de Investigaciones Biomedicas de Barcelona (IIBB), Consejo Superior de Investigaciones Cientificas (CSIC), 08036, Barcelona, Spain
- Cerebrovascular Research Group, Institut d'Investigacions Biomediques August Pi I Sunyer (IDIBAPS), Barcelona, Spain
- Faculty of Medicine, University of Barcelona, Barcelona, Spain
| | - Helga E de Vries
- Department of Molecular Cell Biology and Immunology, Amsterdam UMC Location Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
- Amsterdam Neuroscience, Amsterdam UMC, Amsterdam, The Netherlands
- MS Center Amsterdam, Amsterdam UMC Location VU Medical Center, Amsterdam, The Netherlands
| | - Lydia Sorokin
- Institute of Physiological Chemistry and Pathobiochemistry, University of Muenster, Munster, Germany
- Cells-in-Motion Interfaculty Centre (CIMIC), University of Münster, Münster, Germany
| | - Anna M Planas
- Department of Neuroscience and Experimental Therapeutics, Instituto de Investigaciones Biomedicas de Barcelona (IIBB), Consejo Superior de Investigaciones Cientificas (CSIC), 08036, Barcelona, Spain
- Cerebrovascular Research Group, Institut d'Investigacions Biomediques August Pi I Sunyer (IDIBAPS), Barcelona, Spain
- Faculty of Medicine, University of Barcelona, Barcelona, Spain
| | | | - Markus Schwaninger
- Institute of Experimental and Clinical Pharmacology and Toxicology, Center of Brain, Behavior and Metabolism, University of Lübeck, Lübeck, Germany.
- German Research Centre for Cardiovascular Research (DZHK), Partner Site Hamburg, Lübeck, Kiel, Germany.
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Wenzel J, Schwaninger M. Macrophages and endothelial cells in the neurovascular unit. Acta Neuropathol 2024; 147:36. [PMID: 38347168 PMCID: PMC10861386 DOI: 10.1007/s00401-024-02697-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2024] [Revised: 01/19/2024] [Accepted: 01/20/2024] [Indexed: 02/15/2024]
Affiliation(s)
- Jan Wenzel
- Institute of Experimental and Clinical Pharmacology and Toxicology, Center of Brain, Behavior and Metabolism, University of Lübeck, Lübeck, Germany
- German Research Centre for Cardiovascular Research (DZHK), partner site Hamburg/Lübeck/Kiel, Lübeck, Germany
| | - Markus Schwaninger
- Institute of Experimental and Clinical Pharmacology and Toxicology, Center of Brain, Behavior and Metabolism, University of Lübeck, Lübeck, Germany.
- German Research Centre for Cardiovascular Research (DZHK), partner site Hamburg/Lübeck/Kiel, Lübeck, Germany.
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Dalmau Gasull A, Glavan M, Samawar SKR, Kapupara K, Kelk J, Rubio M, Fumagalli S, Sorokin L, Vivien D, Prinz M. The niche matters: origin, function and fate of CNS-associated macrophages during health and disease. Acta Neuropathol 2024; 147:37. [PMID: 38347231 PMCID: PMC10861620 DOI: 10.1007/s00401-023-02676-9] [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: 11/14/2023] [Revised: 12/13/2023] [Accepted: 12/22/2023] [Indexed: 02/15/2024]
Abstract
There are several cellular and acellular structural barriers associated with the brain interfaces, which include the dura, the leptomeninges, the perivascular space and the choroid plexus epithelium. Each structure is enriched by distinct myeloid populations, which mainly originate from erythromyeloid precursors (EMP) in the embryonic yolk sac and seed the CNS during embryogenesis. However, depending on the precise microanatomical environment, resident myeloid cells differ in their marker profile, turnover and the extent to which they can be replenished by blood-derived cells. While some EMP-derived cells seed the parenchyma to become microglia, others engraft the meninges and become CNS-associated macrophages (CAMs), also referred to as border-associated macrophages (BAMs), e.g., leptomeningeal macrophages (MnMΦ). Recent data revealed that MnMΦ migrate into perivascular spaces postnatally where they differentiate into perivascular macrophages (PvMΦ). Under homeostatic conditions in pathogen-free mice, there is virtually no contribution of bone marrow-derived cells to MnMΦ and PvMΦ, but rather to macrophages of the choroid plexus and dura. In neuropathological conditions in which the blood-brain barrier is compromised, however, an influx of bone marrow-derived cells into the CNS can occur, potentially contributing to the pool of CNS myeloid cells. Simultaneously, resident CAMs may also proliferate and undergo transcriptional and proteomic changes, thereby, contributing to the disease outcome. Thus, both resident and infiltrating myeloid cells together act within their microenvironmental niche, but both populations play crucial roles in the overall disease course. Here, we summarize the current understanding of the sources and fates of resident CAMs in health and disease, and the role of the microenvironment in influencing their maintenance and function.
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Affiliation(s)
- Adrià Dalmau Gasull
- Institute of Neuropathology, Faculty of Medicine, University of Freiburg, Freiburg, Germany.
| | - Martina Glavan
- Normandie University, UNICAEN, INSERM UMR-S U1237, Physiopathology and Imaging of Neurological Disorders (PhIND), GIP Cyceron, Institut Blood and Brain @ Caen-Normandie (BB@C), 14000, Caen, France
- Department of Neuroscience, Yale School of Medicine, Yale University, New Haven, USA
| | - Sai K Reddy Samawar
- Institute of Physiological Chemistry and Pathobiochemistry and Cells in Motion Interfaculty Centre (CIMIC), University of Münster, Münster, Germany
| | - Kishan Kapupara
- Institute of Physiological Chemistry and Pathobiochemistry and Cells in Motion Interfaculty Centre (CIMIC), University of Münster, Münster, Germany
| | - Joe Kelk
- Laboratory of Stroke and Vascular Dysfunctions, Department of Acute Brain and Cardiovascular Injury, Istituto Di Ricerche Farmacologiche Mario Negri IRCCS, 20156, Milan, Italy
| | - Marina Rubio
- Normandie University, UNICAEN, INSERM UMR-S U1237, Physiopathology and Imaging of Neurological Disorders (PhIND), GIP Cyceron, Institut Blood and Brain @ Caen-Normandie (BB@C), 14000, Caen, France
| | - Stefano Fumagalli
- Laboratory of Stroke and Vascular Dysfunctions, Department of Acute Brain and Cardiovascular Injury, Istituto Di Ricerche Farmacologiche Mario Negri IRCCS, 20156, Milan, Italy
| | - Lydia Sorokin
- Institute of Physiological Chemistry and Pathobiochemistry and Cells in Motion Interfaculty Centre (CIMIC), University of Münster, Münster, Germany
| | - Denis Vivien
- Normandie University, UNICAEN, INSERM UMR-S U1237, Physiopathology and Imaging of Neurological Disorders (PhIND), GIP Cyceron, Institut Blood and Brain @ Caen-Normandie (BB@C), 14000, Caen, France
- Department of Clinical Research, Caen-Normandie University Hospital, CHU, Avenue de La Côte de Nacre, Caen, France
| | - Marco Prinz
- Institute of Neuropathology, Faculty of Medicine, University of Freiburg, Freiburg, Germany.
- Signalling Research Centres BIOSS and CIBSS-Centre for Integrative Biological Signalling Studies, University of Freiburg, Freiburg, Germany.
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