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Al-Khateeb ZF, Boumenar H, Adebimpe J, Shekerzade S, Henson SM, Tremoleda JL, Michael-Titus AT. The cellular senescence response and neuroinflammation in juvenile mice following controlled cortical impact and repetitive mild traumatic brain injury. Exp Neurol 2024; 374:114714. [PMID: 38325653 DOI: 10.1016/j.expneurol.2024.114714] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Revised: 12/11/2023] [Accepted: 02/03/2024] [Indexed: 02/09/2024]
Abstract
Traumatic brain injury (TBI) is a leading cause of disability and increases the risk of developing neurodegenerative diseases. The mechanisms linking TBI to neurodegeneration remain to be defined. It has been proposed that the induction of cellular senescence after injury could amplify neuroinflammation and induce long-term tissue changes. The induction of a senescence response post-injury in the immature brain has yet to be characterised. We carried out two types of brain injury in juvenile CD1 mice: invasive TBI using controlled cortical impact (CCI) and repetitive mild TBI (rmTBI) using weight drop injury. The analysis of senescence-related signals showed an increase in γH2AX-53BP1 nuclear foci, p53, p19ARF, and p16INK4a expression in the CCI group, 5 days post-injury (dpi). At 35 days, the difference was no longer statistically significant. Gene expression showed the activation of different senescence pathways in the ipsilateral and contralateral hemispheres in the injured mice. CCI-injured mice showed a neuroinflammatory early phase after injury (increased Iba1 and GFAP expression), which persisted for GFAP. After CCI, there was an increase at 5 days in p16INK4, whereas in rmTBI, a significant increase was seen at 35 dpi. Both injuries caused a decrease in p21 at 35 dpi. In rmTBI, other markers showed no significant change. The PCR array data predicted the activation of pathways connected to senescence after rmTBI. These results indicate the induction of a complex cellular senescence and glial reaction in the immature mouse brain, with clear differences between an invasive brain injury and a repetitive mild injury.
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Affiliation(s)
- Zahra F Al-Khateeb
- Centre for Neuroscience, Surgery and Trauma, The Blizard Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, United Kingdom.
| | - Hasna Boumenar
- Centre for Neuroscience, Surgery and Trauma, The Blizard Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, United Kingdom
| | - Joycee Adebimpe
- Centre for Neuroscience, Surgery and Trauma, The Blizard Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, United Kingdom
| | - Shenel Shekerzade
- Centre for Neuroscience, Surgery and Trauma, The Blizard Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, United Kingdom
| | - Siân M Henson
- Translational Medicine and Therapeutics, William Harvey Research Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, UK
| | - Jordi L Tremoleda
- Centre for Neuroscience, Surgery and Trauma, The Blizard Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, United Kingdom
| | - Adina T Michael-Titus
- Centre for Neuroscience, Surgery and Trauma, The Blizard Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, United Kingdom
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Juan SMA, Daglas M, Truong PH, Mawal C, Adlard PA. Alterations in iron content, iron-regulatory proteins and behaviour without tau pathology at one year following repetitive mild traumatic brain injury. Acta Neuropathol Commun 2023; 11:118. [PMID: 37464280 PMCID: PMC10353227 DOI: 10.1186/s40478-023-01603-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Accepted: 06/12/2023] [Indexed: 07/20/2023] Open
Abstract
Repetitive mild traumatic brain injury (r-mTBI) has increasingly become recognised as a risk factor for the development of neurodegenerative diseases, many of which are characterised by tau pathology, metal dyshomeostasis and behavioural impairments. We aimed to characterise the status of tau and the involvement of iron dyshomeostasis in repetitive controlled cortical impact injury (5 impacts, 48 h apart) in 3-month-old C57Bl6 mice at the chronic (12-month) time point. We performed a battery of behavioural tests, characterised the status of neurodegeneration-associated proteins (tau and tau-regulatory proteins, amyloid precursor protein and iron-regulatory proteins) via western blot; and metal levels using bulk inductively coupled plasma-mass spectrometry (ICP-MS). We report significant changes in various ipsilateral iron-regulatory proteins following five but not a single injury, and significant increases in contralateral iron, zinc and copper levels following five impacts. There was no evidence of tau pathology or changes in tau-regulatory proteins following five impacts, although some changes were observed following a single injury. Five impacts resulted in significant gait deficits, mild anhedonia and mild cognitive deficits at 9-12 months post-injury, effects not seen following a single injury. To the best of our knowledge, we are the first to describe chronic changes in metals and iron-regulatory proteins in a mouse model of r-mTBI, providing a strong indication towards an overall increase in brain iron levels (and other metals) in the chronic phase following r-mTBI. These results bring to question the relevance of tau and highlight the involvement of iron dysregulation in the development and/or progression of neurodegeneration following injury, which may lead to new therapeutic approaches in the future.
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Affiliation(s)
- Sydney M A Juan
- Synaptic Neurobiology Laboratory, The Florey Institute of Neuroscience and Mental Health, The Melbourne Dementia Research Centre, The University of Melbourne, Kenneth Myer Building, 30 Royal Parade, Parkville, Melbourne, VIC, 3052, Australia
| | - Maria Daglas
- Synaptic Neurobiology Laboratory, The Florey Institute of Neuroscience and Mental Health, The Melbourne Dementia Research Centre, The University of Melbourne, Kenneth Myer Building, 30 Royal Parade, Parkville, Melbourne, VIC, 3052, Australia
| | - Phan H Truong
- Synaptic Neurobiology Laboratory, The Florey Institute of Neuroscience and Mental Health, The Melbourne Dementia Research Centre, The University of Melbourne, Kenneth Myer Building, 30 Royal Parade, Parkville, Melbourne, VIC, 3052, Australia
| | - Celeste Mawal
- Synaptic Neurobiology Laboratory, The Florey Institute of Neuroscience and Mental Health, The Melbourne Dementia Research Centre, The University of Melbourne, Kenneth Myer Building, 30 Royal Parade, Parkville, Melbourne, VIC, 3052, Australia
| | - Paul A Adlard
- Synaptic Neurobiology Laboratory, The Florey Institute of Neuroscience and Mental Health, The Melbourne Dementia Research Centre, The University of Melbourne, Kenneth Myer Building, 30 Royal Parade, Parkville, Melbourne, VIC, 3052, Australia.
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Zhang C, Wei C, Huang X, Hou C, Liu C, Zhang S, Zhao Z, Liu Y, Zhang R, Zhou L, Li Y, Yuan X, Zhang J. MPC-n (IgG) improves long-term cognitive impairment in the mouse model of repetitive mild traumatic brain injury. BMC Med 2023; 21:199. [PMID: 37254196 DOI: 10.1186/s12916-023-02895-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/09/2022] [Accepted: 05/09/2023] [Indexed: 06/01/2023] Open
Abstract
BACKGROUND Contact sports athletes and military personnel who suffered a repetitive mild traumatic brain injury (rmTBI) are at high risk of neurodegenerative diseases such as advanced dementia and chronic traumatic encephalopathy (CTE). However, due to the lack of specific biological indicators in clinical practice, the diagnosis and treatment of rmTBI are quite limited. METHODS We used 2-methacryloyloxyethyl phosphorylcholine (MPC)-nanocapsules to deliver immunoglobulins (IgG), which can increase the delivery efficiency and specific target of IgG while reducing the effective therapeutic dose of the drug. RESULTS Our results demonstrated that MPC-capsuled immunoglobulins (MPC-n (IgG)) significantly alleviated cognitive impairment, hippocampal atrophy, p-Tau deposition, and myelin injury in rmTBI mice compared with free IgG. Furthermore, MPC-n (IgG) can also effectively inhibit the activation of microglia and the release of inflammatory factors. CONCLUSIONS In the present study, we put forward an efficient strategy for the treatment of rmTBI-related cognitive impairment and provide evidence for the administration of low-dose IgG.
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Affiliation(s)
- Chaonan Zhang
- Key Laboratory of Post-Neurotrauma Neuro-Repair and Regeneration in Central Nervous System, Ministry of Education and Tianjin City, Department of Neurosurgery, Tianjin Neurological Institute, Tianjin Medical University General Hospital, Tianjin, 300052, China
| | - Cheng Wei
- Key Laboratory of Post-Neurotrauma Neuro-Repair and Regeneration in Central Nervous System, Ministry of Education and Tianjin City, Department of Neurosurgery, Tianjin Neurological Institute, Tianjin Medical University General Hospital, Tianjin, 300052, China
| | - Xingqi Huang
- Key Laboratory of Post-Neurotrauma Neuro-Repair and Regeneration in Central Nervous System, Ministry of Education and Tianjin City, Department of Neurosurgery, Tianjin Neurological Institute, Tianjin Medical University General Hospital, Tianjin, 300052, China
| | - Changxin Hou
- Tianjin Key Laboratory of Composite and Functional Materials, School of Materials Science and Engineering, Tianjin University, Tianjin, 300072, China
| | - Chuan Liu
- Key Laboratory of Post-Neurotrauma Neuro-Repair and Regeneration in Central Nervous System, Ministry of Education and Tianjin City, Department of Neurosurgery, Tianjin Neurological Institute, Tianjin Medical University General Hospital, Tianjin, 300052, China
| | - Shu Zhang
- Key Laboratory of Post-Neurotrauma Neuro-Repair and Regeneration in Central Nervous System, Ministry of Education and Tianjin City, Department of Neurosurgery, Tianjin Neurological Institute, Tianjin Medical University General Hospital, Tianjin, 300052, China
| | - Zilong Zhao
- Key Laboratory of Post-Neurotrauma Neuro-Repair and Regeneration in Central Nervous System, Ministry of Education and Tianjin City, Department of Neurosurgery, Tianjin Neurological Institute, Tianjin Medical University General Hospital, Tianjin, 300052, China
| | - Yafan Liu
- Key Laboratory of Post-Neurotrauma Neuro-Repair and Regeneration in Central Nervous System, Ministry of Education and Tianjin City, Department of Neurosurgery, Tianjin Neurological Institute, Tianjin Medical University General Hospital, Tianjin, 300052, China
| | - Ruiguang Zhang
- Key Laboratory of Post-Neurotrauma Neuro-Repair and Regeneration in Central Nervous System, Ministry of Education and Tianjin City, Department of Neurosurgery, Tianjin Neurological Institute, Tianjin Medical University General Hospital, Tianjin, 300052, China
| | - Lei Zhou
- Key Laboratory of Post-Neurotrauma Neuro-Repair and Regeneration in Central Nervous System, Ministry of Education and Tianjin City, Department of Neurosurgery, Tianjin Neurological Institute, Tianjin Medical University General Hospital, Tianjin, 300052, China
| | - Ying Li
- Key Laboratory of Post-Neurotrauma Neuro-Repair and Regeneration in Central Nervous System, Ministry of Education and Tianjin City, Department of Neurosurgery, Tianjin Neurological Institute, Tianjin Medical University General Hospital, Tianjin, 300052, China
| | - Xubo Yuan
- Tianjin Key Laboratory of Composite and Functional Materials, School of Materials Science and Engineering, Tianjin University, Tianjin, 300072, China.
| | - Jianning Zhang
- Key Laboratory of Post-Neurotrauma Neuro-Repair and Regeneration in Central Nervous System, Ministry of Education and Tianjin City, Department of Neurosurgery, Tianjin Neurological Institute, Tianjin Medical University General Hospital, Tianjin, 300052, China.
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Wang D, Zhang S, Ge X, Yin Z, Li M, Guo M, Hu T, Han Z, Kong X, Li D, Zhao J, Wang L, Liu Q, Chen F, Lei P. Mesenchymal stromal cell treatment attenuates repetitive mild traumatic brain injury-induced persistent cognitive deficits via suppressing ferroptosis. J Neuroinflammation 2022; 19:185. [PMID: 35836233 PMCID: PMC9281149 DOI: 10.1186/s12974-022-02550-7] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2022] [Accepted: 07/06/2022] [Indexed: 11/10/2022] Open
Abstract
The incidence of repetitive mild traumatic brain injury (rmTBI), one of the main risk factors for predicting neurodegenerative disorders, is increasing; however, its underlying mechanism remains unclear. As suggested by several studies, ferroptosis is possibly related to TBI pathophysiology, but its effect on rmTBI is rarely studied. Mesenchymal stromal cells (MSCs), the most studied experimental cells in stem cell therapy, exert many beneficial effects on diseases of the central nervous system, yet evidence regarding the role of MSCs in ferroptosis and post-rmTBI neurodegeneration is unavailable. Our study showed that rmTBI resulted in time-dependent alterations in ferroptosis-related biomarker levels, such as abnormal iron metabolism, glutathione peroxidase (GPx) inactivation, decrease in GPx4 levels, and increase in lipid peroxidation. Furthermore, MSC treatment markedly decreased the aforementioned rmTBI-mediated alterations, neuronal damage, pathological protein deposition, and improved cognitive function compared with vehicle control. Similarly, liproxstatin-1, a ferroptosis inhibitor, showed similar effects. Collectively, based on the above observations, MSCs ameliorate cognitive impairment following rmTBI, partially via suppressing ferroptosis, which could be a therapeutic target for rmTBI.
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Affiliation(s)
- Dong Wang
- Haihe Laboratory of Cell Ecosystem, Department of Geriatrics, Tianjin Medical University General Hospital, Tianjin, China.,Tianjin Geriatrics Institute, Tianjin Medical University General Hospital, Tianjin, China
| | - Shishuang Zhang
- Haihe Laboratory of Cell Ecosystem, Department of Geriatrics, Tianjin Medical University General Hospital, Tianjin, China.,Tianjin Geriatrics Institute, Tianjin Medical University General Hospital, Tianjin, China
| | - Xintong Ge
- Haihe Laboratory of Cell Ecosystem, Department of Geriatrics, Tianjin Medical University General Hospital, Tianjin, China.,Tianjin Geriatrics Institute, Tianjin Medical University General Hospital, Tianjin, China
| | - Zhenyu Yin
- Haihe Laboratory of Cell Ecosystem, Department of Geriatrics, Tianjin Medical University General Hospital, Tianjin, China.,Tianjin Geriatrics Institute, Tianjin Medical University General Hospital, Tianjin, China
| | - Meimei Li
- Haihe Laboratory of Cell Ecosystem, Department of Geriatrics, Tianjin Medical University General Hospital, Tianjin, China.,Tianjin Geriatrics Institute, Tianjin Medical University General Hospital, Tianjin, China
| | - Mengtian Guo
- Haihe Laboratory of Cell Ecosystem, Department of Geriatrics, Tianjin Medical University General Hospital, Tianjin, China.,Tianjin Geriatrics Institute, Tianjin Medical University General Hospital, Tianjin, China
| | - Tianpeng Hu
- Haihe Laboratory of Cell Ecosystem, Department of Geriatrics, Tianjin Medical University General Hospital, Tianjin, China.,Tianjin Geriatrics Institute, Tianjin Medical University General Hospital, Tianjin, China
| | - Zhaoli Han
- Haihe Laboratory of Cell Ecosystem, Department of Geriatrics, Tianjin Medical University General Hospital, Tianjin, China.,Tianjin Geriatrics Institute, Tianjin Medical University General Hospital, Tianjin, China
| | - Xiaodong Kong
- Haihe Laboratory of Cell Ecosystem, Department of Geriatrics, Tianjin Medical University General Hospital, Tianjin, China.,Tianjin Geriatrics Institute, Tianjin Medical University General Hospital, Tianjin, China
| | - Dai Li
- Haihe Laboratory of Cell Ecosystem, Department of Geriatrics, Tianjin Medical University General Hospital, Tianjin, China.,Tianjin Geriatrics Institute, Tianjin Medical University General Hospital, Tianjin, China
| | - Jing Zhao
- Haihe Laboratory of Cell Ecosystem, Department of Geriatrics, Tianjin Medical University General Hospital, Tianjin, China.,Tianjin Geriatrics Institute, Tianjin Medical University General Hospital, Tianjin, China
| | - Lu Wang
- Haihe Laboratory of Cell Ecosystem, Department of Geriatrics, Tianjin Medical University General Hospital, Tianjin, China.,Tianjin Geriatrics Institute, Tianjin Medical University General Hospital, Tianjin, China
| | - Qiang Liu
- Tianjin Neurological Institute, Tianjin Medical University General Hospital, Tianjin, China
| | - Fanglian Chen
- Tianjin Neurological Institute, Tianjin Medical University General Hospital, Tianjin, China
| | - Ping Lei
- Haihe Laboratory of Cell Ecosystem, Department of Geriatrics, Tianjin Medical University General Hospital, Tianjin, China. .,Tianjin Geriatrics Institute, Tianjin Medical University General Hospital, Tianjin, China.
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5
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Abstract
Traumatic brain injury is a calamity of various causes, pathologies, and extremely varied and often complex clinical presentations. Because of its predilection for brain systems underlying cognitive and complex behavioral operations, it may cause chronic and severe psychiatric illness that requires expert management. This is more so for the modern epidemic of athletic and military brain injuries which are dominated by psychiatric symptoms. Past medical, including psychiatric, history, and comorbidities are important and relevant for formulation and management. Traumatic brain injury is a model for other neuropsychiatric disorders and may serve as an incubator of new ideas for neurodegenerative disease.
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Affiliation(s)
- Vassilis E Koliatsos
- Department of Pathology (Neuropathology), Johns Hopkins University School of Medicine, Baltimore, MD, USA; Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, MD, USA; Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, Baltimore, MD, USA; Neuropsychiatry Program, Sheppard Pratt Health System, Baltimore, MD, USA.
| | - Vani Rao
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, Baltimore, MD, USA
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6
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Lynch CE, Crynen G, Ferguson S, Mouzon B, Paris D, Ojo J, Leary P, Crawford F, Bachmeier C. Chronic cerebrovascular abnormalities in a mouse model of repetitive mild traumatic brain injury. Brain Inj 2018; 30:1414-1427. [PMID: 27834539 DOI: 10.1080/02699052.2016.1219060] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
PRIMARY OBJECTIVE To investigate the status of the cerebrovasculature following repetitive mild traumatic brain injury (r-mTBI). RESEARCH DESIGN TBI is a risk factor for development of various neurodegenerative disorders. A common feature of neurodegenerative disease is cerebrovascular dysfunction which includes alterations in cerebral blood flow (CBF). TBI can result in transient reductions in CBF, with severe injuries often accompanied by varying degrees of vascular pathology post-mortem. However, at this stage, few studies have investigated the cerebrovasculature at chronic time points following repetitive mild brain trauma. METHODS AND PROCEDURES r-mTBI was delivered to wild-type mice (12 months old) twice per week for 3 months and tested for spatial memory deficits (Barnes Maze task) at 1 and 6 months post-injury. At 7 months post-injury CBF was assessed via Laser Doppler Imaging and, following euthanasia, the brain was probed for markers of cerebrovascular dysfunction and inflammation. MAIN OUTCOMES AND RESULTS Memory impairment was identified at 1 month post-injury and persisted as late as 6 months post-injury. Furthermore, significant immunopathological insult, reductions in global CBF and down-regulation of cerebrovascular-associated markers were observed. CONCLUSIONS These results demonstrate impaired cognitive behaviour alongside chronic cerebrovascular dysfunction in a mouse model of repetitive mild brain trauma.
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Affiliation(s)
- Cillian E Lynch
- a The Roskamp Institute , Sarasota , FL , USA.,b The Open University , Department of Life Sciences , Milton Keynes , UK.,c James A. Haley Veteran's Administration Center , Tampa , FL , USA
| | - Gogce Crynen
- a The Roskamp Institute , Sarasota , FL , USA.,b The Open University , Department of Life Sciences , Milton Keynes , UK.,c James A. Haley Veteran's Administration Center , Tampa , FL , USA
| | - Scott Ferguson
- a The Roskamp Institute , Sarasota , FL , USA.,b The Open University , Department of Life Sciences , Milton Keynes , UK.,c James A. Haley Veteran's Administration Center , Tampa , FL , USA
| | - Benoit Mouzon
- a The Roskamp Institute , Sarasota , FL , USA.,b The Open University , Department of Life Sciences , Milton Keynes , UK.,c James A. Haley Veteran's Administration Center , Tampa , FL , USA
| | - Daniel Paris
- a The Roskamp Institute , Sarasota , FL , USA.,b The Open University , Department of Life Sciences , Milton Keynes , UK.,c James A. Haley Veteran's Administration Center , Tampa , FL , USA
| | - Joseph Ojo
- a The Roskamp Institute , Sarasota , FL , USA.,b The Open University , Department of Life Sciences , Milton Keynes , UK.,c James A. Haley Veteran's Administration Center , Tampa , FL , USA
| | - Paige Leary
- a The Roskamp Institute , Sarasota , FL , USA
| | - Fiona Crawford
- a The Roskamp Institute , Sarasota , FL , USA.,b The Open University , Department of Life Sciences , Milton Keynes , UK.,c James A. Haley Veteran's Administration Center , Tampa , FL , USA
| | - Corbin Bachmeier
- a The Roskamp Institute , Sarasota , FL , USA.,b The Open University , Department of Life Sciences , Milton Keynes , UK.,c James A. Haley Veteran's Administration Center , Tampa , FL , USA
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7
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Bai R, Gao H, Han Z, Huang S, Ge X, Chen F, Lei P. Flow Cytometric Characterization of T Cell Subsets and Microglia After Repetitive Mild Traumatic Brain Injury in Rats. Neurochem Res 2017. [PMID: 28620825 PMCID: PMC5626793 DOI: 10.1007/s11064-017-2310-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Although, there is growing awareness in the progressive neurodegeneration of chronic traumatic encephalopathy, changes of immune reactions remain equivocal at best. Thus, in a clinically relevant rat repetitive mild traumatic brain injury (rmTBI) model, some immunologic cells (T cell subsets, microglia) in the injured brain and peripheral blood were analyzed by flow cytometry and immunofluorescence. In the injured brain, CD3+ T cells showed a bimodal increase during 42 days post-injury (dpi). CD3+CD4+ T cells firstly increased and then decreased, while CD3+CD8+ T cells had reversed tendency. CD86+/CD11b+ M1-like microglia increased at 42 dpi and CD206+/CD11b+ M2-like microglia peaked at 7 dpi. In addition, peripheral immune suppression was implicated in the chronic phase after rmTBI. Taken together, the study provided useful information on long-term dynamic changes of some immune cells after rmTBI in rats.
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Affiliation(s)
- Ruojing Bai
- Department of Geriatrics, Tianjin Medical University General Hospital, Tianjin Geriatrics Institute, Anshan Road No. 154, Tianjin, 300052, China.,Laboratory of Neuro-Trauma and Neurodegenerative Disorder, Tianjin Geriatrics Institute, Tianjin, 300052, China.,Key Laboratory of Post-Trauma Neuro-Repair and Regeneration in Central Nervous System, Ministry of Education, Tianjin, 300052, China.,Key Laboratory of Injury, Variation and Regeneration of Nervous System, Tianjin, 300052, China.,Laboratory of Neuro-Trauma, Tianjin Neurological Institute, Tianjin, 300052, China
| | - Huabin Gao
- Department of Geriatrics, Tianjin Medical University General Hospital, Tianjin Geriatrics Institute, Anshan Road No. 154, Tianjin, 300052, China.,Laboratory of Neuro-Trauma and Neurodegenerative Disorder, Tianjin Geriatrics Institute, Tianjin, 300052, China.,Key Laboratory of Post-Trauma Neuro-Repair and Regeneration in Central Nervous System, Ministry of Education, Tianjin, 300052, China.,Key Laboratory of Injury, Variation and Regeneration of Nervous System, Tianjin, 300052, China.,Laboratory of Neuro-Trauma, Tianjin Neurological Institute, Tianjin, 300052, China
| | - Zhaoli Han
- Department of Geriatrics, Tianjin Medical University General Hospital, Tianjin Geriatrics Institute, Anshan Road No. 154, Tianjin, 300052, China.,Laboratory of Neuro-Trauma and Neurodegenerative Disorder, Tianjin Geriatrics Institute, Tianjin, 300052, China
| | - Shan Huang
- Department of Geriatrics, Tianjin Medical University General Hospital, Tianjin Geriatrics Institute, Anshan Road No. 154, Tianjin, 300052, China.,Laboratory of Neuro-Trauma and Neurodegenerative Disorder, Tianjin Geriatrics Institute, Tianjin, 300052, China.,Key Laboratory of Post-Trauma Neuro-Repair and Regeneration in Central Nervous System, Ministry of Education, Tianjin, 300052, China.,Key Laboratory of Injury, Variation and Regeneration of Nervous System, Tianjin, 300052, China.,Laboratory of Neuro-Trauma, Tianjin Neurological Institute, Tianjin, 300052, China
| | - Xintong Ge
- Key Laboratory of Post-Trauma Neuro-Repair and Regeneration in Central Nervous System, Ministry of Education, Tianjin, 300052, China.,Key Laboratory of Injury, Variation and Regeneration of Nervous System, Tianjin, 300052, China.,Laboratory of Neuro-Trauma, Tianjin Neurological Institute, Tianjin, 300052, China.,Department of Neurosurgery, Tianjin Neurological Institute General Hospital, Tianjin Medical University, Tianjin, 300052, China
| | - Fanglian Chen
- Key Laboratory of Post-Trauma Neuro-Repair and Regeneration in Central Nervous System, Ministry of Education, Tianjin, 300052, China.,Key Laboratory of Injury, Variation and Regeneration of Nervous System, Tianjin, 300052, China.,Laboratory of Neuro-Trauma, Tianjin Neurological Institute, Tianjin, 300052, China
| | - Ping Lei
- Department of Geriatrics, Tianjin Medical University General Hospital, Tianjin Geriatrics Institute, Anshan Road No. 154, Tianjin, 300052, China. .,Laboratory of Neuro-Trauma and Neurodegenerative Disorder, Tianjin Geriatrics Institute, Tianjin, 300052, China.
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8
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Edwards G, Moreno-Gonzalez I, Soto C. Amyloid-beta and tau pathology following repetitive mild traumatic brain injury. Biochem Biophys Res Commun 2016; 483:1137-1142. [PMID: 27492070 DOI: 10.1016/j.bbrc.2016.07.123] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2016] [Revised: 07/25/2016] [Accepted: 07/29/2016] [Indexed: 12/27/2022]
Abstract
Neurodegenerative diseases are characterized by distinctive neuropathological alterations, including the cerebral accumulation of misfolded protein aggregates, neuroinflammation, synaptic dysfunction, and neuronal loss, along with behavioral impairments. Traumatic brain injury (TBI) is believed to be an important risk factor for certain neurodegenerative diseases, such as Alzheimer's disease (AD) and chronic traumatic encephalopathy (CTE). TBI represents a ubiquitous problem in the world and could play a major role in the pathogenesis and etiology of AD or CTE later in life. TBI events appear to trigger and exacerbate some of the pathological processes in these diseases, in particular, the formation and accumulation of misfolded protein aggregates composed of amyloid-beta (Aβ) and tau. Here, we describe the relationship between repetitive mild TBI and the development of Aβ and tau pathology in patients affected by AD or CTE on the basis of epidemiological and pathological studies in human cases, and a thorough overview of data obtained in experimental animal models. We also discuss the possibility that TBI may contribute to initiate the formation of misfolded oligomeric species that may subsequently spread the pathology through a prion-like process of seeding of protein misfolding.
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Affiliation(s)
- George Edwards
- Mitchell Center for Alzheimer's disease and Related Brain Disorders, Department of Neurology, The University of Texas Medical School, Houston, Texas
| | - Ines Moreno-Gonzalez
- Mitchell Center for Alzheimer's disease and Related Brain Disorders, Department of Neurology, The University of Texas Medical School, Houston, Texas
| | - Claudio Soto
- Mitchell Center for Alzheimer's disease and Related Brain Disorders, Department of Neurology, The University of Texas Medical School, Houston, Texas.
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9
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Multani N, Goswami R, Khodadadi M, Ebraheem A, Davis KD, Tator CH, Wennberg R, Mikulis DJ, Ezerins L, Tartaglia MC. The association between white-matter tract abnormalities, and neuropsychiatric and cognitive symptoms in retired professional football players with multiple concussions. J Neurol 2016; 263:1332-41. [PMID: 27142715 DOI: 10.1007/s00415-016-8141-0] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2016] [Revised: 04/20/2016] [Accepted: 04/22/2016] [Indexed: 02/02/2023]
Abstract
Retired professional athletes, who have suffered repetitive concussions, report symptoms of depression, anxiety, and memory impairment over time. Moreover, recent imaging data suggest chronic white-matter tract deterioration in sport-related concussion. The aim of this study is to evaluate the impact of repetitive concussions in retired professional football players on white-matter tracts, and relate these changes to neuropsychological function. All subjects (18 retired professional football players and 17 healthy controls) underwent imaging, neuropsychological assessment, and reported on concussion-related symptoms. Whole brain tract-based spatial statistics analysis revealed increased axial diffusivity in the right hemisphere of retired players in the (1) superior longitudinal fasciculus (SLF), (2) corticospinal tract, and (3) anterior thalamic radiations, suggesting chronic axonal degeneration in these tracts. Moreover, retired players report significantly higher neuropsychiatric and cognitive symptoms than healthy controls, and worsening of these symptoms since their last concussion. Loss of integrity in the right SLF significantly correlated with participants' visual learning ability. In sum, these results suggest that repetitive concussions in retired professional football players are associated with focal white-matter tract abnormalities that could explain some of the neuropsychiatric symptoms and cognitive deficits experienced by these retired athletes.
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Affiliation(s)
- Namita Multani
- Canadian Sports Concussion Project, Memory Clinic, Toronto Western Hospital, Tanz Centre for Research in Neurodegenerative Disease, 399 Bathurst St., West Wing 5-449, Toronto, ON, M5T 2S8, Canada.,Tanz Centre for Research in Neurodegenerative Diseases, University of Toronto, 60 Leonard Avenue, Toronto, ON, M5T 2S8, Canada.,Division of Neurology, Toronto Western Hospital, Krembil Neuroscience Centre, University Health Network, 399 Bathurst St., Toronto, ON, M5T 2S8, Canada
| | - Ruma Goswami
- Canadian Sports Concussion Project, Memory Clinic, Toronto Western Hospital, Tanz Centre for Research in Neurodegenerative Disease, 399 Bathurst St., West Wing 5-449, Toronto, ON, M5T 2S8, Canada.,Division of Brain, Imaging and Behaviour-Systems Neuroscience, Toronto Western Hospital, Toronto Western Research Institute, University Health Network, 399 Bathurst St., Toronto, ON, M5T 2S8, Canada
| | - Mozhgan Khodadadi
- Canadian Sports Concussion Project, Memory Clinic, Toronto Western Hospital, Tanz Centre for Research in Neurodegenerative Disease, 399 Bathurst St., West Wing 5-449, Toronto, ON, M5T 2S8, Canada
| | - Ahmed Ebraheem
- Canadian Sports Concussion Project, Memory Clinic, Toronto Western Hospital, Tanz Centre for Research in Neurodegenerative Disease, 399 Bathurst St., West Wing 5-449, Toronto, ON, M5T 2S8, Canada
| | - Karen D Davis
- Canadian Sports Concussion Project, Memory Clinic, Toronto Western Hospital, Tanz Centre for Research in Neurodegenerative Disease, 399 Bathurst St., West Wing 5-449, Toronto, ON, M5T 2S8, Canada.,Division of Brain, Imaging and Behaviour-Systems Neuroscience, Toronto Western Hospital, Toronto Western Research Institute, University Health Network, 399 Bathurst St., Toronto, ON, M5T 2S8, Canada.,Institute of Medical Science, University of Toronto, 1 King's College Circle, Toronto, ON, M5S 1A8, Canada.,Department of Surgery, University of Toronto, 149 College Street, Toronto, ON, M5T 1P5, Canada
| | - Charles H Tator
- Canadian Sports Concussion Project, Memory Clinic, Toronto Western Hospital, Tanz Centre for Research in Neurodegenerative Disease, 399 Bathurst St., West Wing 5-449, Toronto, ON, M5T 2S8, Canada.,Division of Brain, Imaging and Behaviour-Systems Neuroscience, Toronto Western Hospital, Toronto Western Research Institute, University Health Network, 399 Bathurst St., Toronto, ON, M5T 2S8, Canada.,Institute of Medical Science, University of Toronto, 1 King's College Circle, Toronto, ON, M5S 1A8, Canada.,Department of Surgery, University of Toronto, 149 College Street, Toronto, ON, M5T 1P5, Canada.,Division of Neurosurgery, Toronto Western Hospital, Krembil Neuroscience Centre, University Health Network, 399 Bathurst St., Toronto, ON, M5T 2S8, Canada
| | - Richard Wennberg
- Canadian Sports Concussion Project, Memory Clinic, Toronto Western Hospital, Tanz Centre for Research in Neurodegenerative Disease, 399 Bathurst St., West Wing 5-449, Toronto, ON, M5T 2S8, Canada.,Division of Neurology, Toronto Western Hospital, Krembil Neuroscience Centre, University Health Network, 399 Bathurst St., Toronto, ON, M5T 2S8, Canada
| | - David J Mikulis
- Canadian Sports Concussion Project, Memory Clinic, Toronto Western Hospital, Tanz Centre for Research in Neurodegenerative Disease, 399 Bathurst St., West Wing 5-449, Toronto, ON, M5T 2S8, Canada.,Division of Brain, Imaging and Behaviour-Systems Neuroscience, Toronto Western Hospital, Toronto Western Research Institute, University Health Network, 399 Bathurst St., Toronto, ON, M5T 2S8, Canada.,Institute of Medical Science, University of Toronto, 1 King's College Circle, Toronto, ON, M5S 1A8, Canada.,Department of Medical Imaging, Toronto Western Hospital, University Health Network, 399 Bathurst St., Toronto, ON, M5T 2S8, Canada
| | - Leo Ezerins
- Canadian Sports Concussion Project, Memory Clinic, Toronto Western Hospital, Tanz Centre for Research in Neurodegenerative Disease, 399 Bathurst St., West Wing 5-449, Toronto, ON, M5T 2S8, Canada
| | - Maria Carmela Tartaglia
- Canadian Sports Concussion Project, Memory Clinic, Toronto Western Hospital, Tanz Centre for Research in Neurodegenerative Disease, 399 Bathurst St., West Wing 5-449, Toronto, ON, M5T 2S8, Canada. .,Tanz Centre for Research in Neurodegenerative Diseases, University of Toronto, 60 Leonard Avenue, Toronto, ON, M5T 2S8, Canada. .,Division of Neurology, Toronto Western Hospital, Krembil Neuroscience Centre, University Health Network, 399 Bathurst St., Toronto, ON, M5T 2S8, Canada.
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