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Hasegawa T, Utsunomiya A, Chino T, Kasamatsu H, Shimizu T, Matsushita T, Obara T, Ishii N, Ogasawara H, Ikeda W, Imai T, Oyama N, Hasegawa M. Anti-CX3CL1 (fractalkine) monoclonal antibody attenuates lung and skin fibrosis in sclerodermatous graft-versus-host disease mouse model. Arthritis Res Ther 2024; 26:94. [PMID: 38702742 PMCID: PMC11067205 DOI: 10.1186/s13075-024-03307-8] [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: 07/14/2023] [Accepted: 03/10/2024] [Indexed: 05/06/2024] Open
Abstract
BACKGROUND Systemic sclerosis (SSc) is an autoimmune disease characterized by vascular injury and inflammation, followed by excessive fibrosis of the skin and other internal organs, including the lungs. CX3CL1 (fractalkine), a chemokine expressed on endothelial cells, supports the migration of macrophages and T cells that express its specific receptor CX3CR1 into targeted tissues. We previously reported that anti-CX3CL1 monoclonal antibody (mAb) treatment significantly inhibited transforming growth factor (TGF)-β1-induced expression of type I collagen and fibronectin 1 in human dermal fibroblasts. Additionally, anti-mouse CX3CL1 mAb efficiently suppressed skin inflammation and fibrosis in bleomycin- and growth factor-induced SSc mouse models. However, further studies using different mouse models of the complex immunopathology of SSc are required before the initiation of a clinical trial of CX3CL1 inhibitors for human SSc. METHODS To assess the preclinical utility and functional mechanism of anti-CX3CL1 mAb therapy in skin and lung fibrosis, a sclerodermatous chronic graft-versus-host disease (Scl-cGVHD) mouse model was analyzed with immunohistochemical staining for characteristic infiltrating cells and RNA sequencing assays. RESULTS On day 42 after bone marrow transplantation, Scl-cGVHD mice showed increased serum CX3CL1 level. Intraperitoneal administration of anti-CX3CL1 mAb inhibited the development of fibrosis in the skin and lungs of Scl-cGVHD model, and did not result in any apparent adverse events. The therapeutic effects were correlated with the number of tissue-infiltrating inflammatory cells and α-smooth muscle actin (α-SMA)-positive myofibroblasts. RNA sequencing analysis of the fibrotic skin demonstrated that cGVHD-dependent induction of gene sets associated with macrophage-related inflammation and fibrosis was significantly downregulated by mAb treatment. In the process of fibrosis, mAb treatment reduced cGVHD-induced infiltration of macrophages and T cells in the skin and lungs, especially those expressing CX3CR1. CONCLUSIONS Together with our previous findings in other SSc mouse models, the current results indicated that anti-CX3CL1 mAb therapy could be a rational therapeutic approach for fibrotic disorders, such as human SSc and Scl-cGVHD.
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Affiliation(s)
- Takumi Hasegawa
- Department of Dermatology, Division of Medicine, Faculty of Medical Sciences, University of Fukui, Fukui, 910-1193, Japan
| | - Akira Utsunomiya
- Department of Dermatology, Division of Medicine, Faculty of Medical Sciences, University of Fukui, Fukui, 910-1193, Japan
| | - Takenao Chino
- Department of Dermatology, Division of Medicine, Faculty of Medical Sciences, University of Fukui, Fukui, 910-1193, Japan
| | - Hiroshi Kasamatsu
- Department of Dermatology, Division of Medicine, Faculty of Medical Sciences, University of Fukui, Fukui, 910-1193, Japan
| | - Tomomi Shimizu
- Department of Dermatology, Division of Medicine, Faculty of Medical Sciences, University of Fukui, Fukui, 910-1193, Japan
| | - Takashi Matsushita
- Department of Dermatology, Faculty of Medicine, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kanazawa, 920-8641, Japan
| | | | - Naoto Ishii
- KAN Research Institute, Inc, Kobe, Hyogo, 650-0047, Japan
| | | | - Wataru Ikeda
- KAN Research Institute, Inc, Kobe, Hyogo, 650-0047, Japan
- IDDK Co., Ltd, Tokyo, 135-0047, Japan
| | - Toshio Imai
- KAN Research Institute, Inc, Kobe, Hyogo, 650-0047, Japan
- Advanced Therapeutic Target Discovery, Department of Gastroenterology, Kobe University Graduate School of Medicine, Kobe, Hyogo, 650-0047, Japan
| | - Noritaka Oyama
- Department of Dermatology, Division of Medicine, Faculty of Medical Sciences, University of Fukui, Fukui, 910-1193, Japan
| | - Minoru Hasegawa
- Department of Dermatology, Division of Medicine, Faculty of Medical Sciences, University of Fukui, Fukui, 910-1193, Japan.
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Benarroch E. What Are the Roles of Oligodendrocyte Precursor Cells in Normal and Pathologic Conditions? Neurology 2023; 101:958-965. [PMID: 37985182 PMCID: PMC10663025 DOI: 10.1212/wnl.0000000000208000] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Accepted: 09/25/2023] [Indexed: 11/22/2023] Open
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Zou P, Wu C, Liu TCY, Duan R, Yang L. Oligodendrocyte progenitor cells in Alzheimer's disease: from physiology to pathology. Transl Neurodegener 2023; 12:52. [PMID: 37964328 PMCID: PMC10644503 DOI: 10.1186/s40035-023-00385-7] [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: 08/10/2023] [Accepted: 11/01/2023] [Indexed: 11/16/2023] Open
Abstract
Oligodendrocyte progenitor cells (OPCs) play pivotal roles in myelin formation and phagocytosis, communicating with neighboring cells and contributing to the integrity of the blood-brain barrier (BBB). However, under the pathological circumstances of Alzheimer's disease (AD), the brain's microenvironment undergoes detrimental changes that significantly impact OPCs and their functions. Starting with OPC functions, we delve into the transformation of OPCs to myelin-producing oligodendrocytes, the intricate signaling interactions with other cells in the central nervous system (CNS), and the fascinating process of phagocytosis, which influences the function of OPCs and affects CNS homeostasis. Moreover, we discuss the essential role of OPCs in BBB formation and highlight the critical contribution of OPCs in forming CNS-protective barriers. In the context of AD, the deterioration of the local microenvironment in the brain is discussed, mainly focusing on neuroinflammation, oxidative stress, and the accumulation of toxic proteins. The detrimental changes disturb the delicate balance in the brain, impacting the regenerative capacity of OPCs and compromising myelin integrity. Under pathological conditions, OPCs experience significant alterations in migration and proliferation, leading to impaired differentiation and a reduced ability to produce mature oligodendrocytes. Moreover, myelin degeneration and formation become increasingly active in AD, contributing to progressive neurodegeneration. Finally, we summarize the current therapeutic approaches targeting OPCs in AD. Strategies to revitalize OPC senescence, modulate signaling pathways to enhance OPC differentiation, and explore other potential therapeutic avenues are promising in alleviating the impact of AD on OPCs and CNS function. In conclusion, this review highlights the indispensable role of OPCs in CNS function and their involvement in the pathogenesis of AD. The intricate interplay between OPCs and the AD brain microenvironment underscores the complexity of neurodegenerative diseases. Insights from studying OPCs under pathological conditions provide a foundation for innovative therapeutic strategies targeting OPCs and fostering neurodegeneration. Future research will advance our understanding and management of neurodegenerative diseases, ultimately offering hope for effective treatments and improved quality of life for those affected by AD and related disorders.
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Affiliation(s)
- Peibin Zou
- Laboratory of Exercise and Neurobiology, School of Physical Education and Sports Science, South China Normal University, Guangzhou, 510006, China
- Department of Neurology, Louisiana State University Health Sciences Center, 1501 Kings Highway, Shreveport, LA, 71103, USA
| | - Chongyun Wu
- Laboratory of Exercise and Neurobiology, School of Physical Education and Sports Science, South China Normal University, Guangzhou, 510006, China
| | - Timon Cheng-Yi Liu
- Laboratory of Exercise and Neurobiology, School of Physical Education and Sports Science, South China Normal University, Guangzhou, 510006, China
| | - Rui Duan
- Laboratory of Exercise and Neurobiology, School of Physical Education and Sports Science, South China Normal University, Guangzhou, 510006, China
| | - Luodan Yang
- Laboratory of Exercise and Neurobiology, School of Physical Education and Sports Science, South China Normal University, Guangzhou, 510006, China.
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Hamanaka G, Hernández IC, Takase H, Ishikawa H, Benboujja F, Kimura S, Fukuda N, Guo S, Lok J, Lo EH, Arai K. Myelination- and migration-associated genes are downregulated after phagocytosis in cultured oligodendrocyte precursor cells. J Neurochem 2023; 167:571-581. [PMID: 37874764 PMCID: PMC10842993 DOI: 10.1111/jnc.15994] [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: 12/07/2022] [Revised: 09/19/2023] [Accepted: 09/25/2023] [Indexed: 10/26/2023]
Abstract
In the central nervous system, microglia are responsible for removing infectious agents, damaged/dead cells, and amyloid plaques by phagocytosis. Other cell types, such as astrocytes, are also recently recognized to show phagocytotic activity under some conditions. Oligodendrocyte precursor cells (OPCs), which belong to the same glial cell family as microglia and astrocytes, may have similar functions. However, it remains largely unknown whether OPCs exhibit phagocytic activity against foreign materials like microglia. To answer this question, we examined the phagocytosis activity of OPCs using primary rat OPC cultures. Since innate phagocytosis activity could trigger cell death pathways, we also investigated whether participating in phagocytosis activity may lead to OPC cell death. Our data shows that cultured OPCs phagocytosed myelin-debris-rich lysates prepared from rat corpus callosum, without progressing to cell death. In contrast to OPCs, mature oligodendrocytes did not show phagocytotic activity against the bait. OPCs also exhibited phagocytosis towards lysates of rat brain cortex and cell membrane debris from cultured astrocytes, but the percentage of OPCs that phagocytosed beta-amyloid was much lower than the myelin debris. We then conducted RNA-seq experiments to examine the transcriptome profile of OPC cultures and found that myelination- and migration-associated genes were downregulated 24 h after phagocytosis. On the other hand, there were a few upregulated genes in OPCs 24 h after phagocytosis. These data confirm that OPCs play a role in debris removal and suggest that OPCs may remain in a quiescent state after phagocytosis.
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Affiliation(s)
- Gen Hamanaka
- Neuroprotection Research Laboratory, Departments of Radiology and Neurology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Iván Coto Hernández
- Surgical Photonics and Engineering Laboratory, Massachusetts Eye and Ear, Harvard Medical School, Boston, MA, USA
| | - Hajime Takase
- Neuroprotection Research Laboratory, Departments of Radiology and Neurology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Hidehiro Ishikawa
- Neuroprotection Research Laboratory, Departments of Radiology and Neurology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Fouzi Benboujja
- Department of Otolaryngology Head and Neck Surgery, Massachusetts Eye and Ear, Harvard Medical School
| | - Shintaro Kimura
- Neuroprotection Research Laboratory, Departments of Radiology and Neurology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Norito Fukuda
- Neuroprotection Research Laboratory, Departments of Radiology and Neurology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Shuzhen Guo
- Neuroprotection Research Laboratory, Departments of Radiology and Neurology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Josephine Lok
- Neuroprotection Research Laboratory, Departments of Radiology and Neurology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Eng H. Lo
- Neuroprotection Research Laboratory, Departments of Radiology and Neurology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Ken Arai
- Neuroprotection Research Laboratory, Departments of Radiology and Neurology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
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Manukjan N, Majcher D, Leenders P, Caiment F, van Herwijnen M, Smeets HJ, Suidgeest E, van der Weerd L, Vanmierlo T, Jansen JFA, Backes WH, van Oostenbrugge RJ, Staals J, Fulton D, Ahmed Z, Blankesteijn WM, Foulquier S. Hypoxic oligodendrocyte precursor cell-derived VEGFA is associated with blood-brain barrier impairment. Acta Neuropathol Commun 2023; 11:128. [PMID: 37550790 PMCID: PMC10405482 DOI: 10.1186/s40478-023-01627-5] [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: 04/14/2023] [Accepted: 07/23/2023] [Indexed: 08/09/2023] Open
Abstract
Cerebral small vessel disease is characterised by decreased cerebral blood flow and blood-brain barrier impairments which play a key role in the development of white matter lesions. We hypothesised that cerebral hypoperfusion causes local hypoxia, affecting oligodendrocyte precursor cell-endothelial cell signalling leading to blood-brain barrier dysfunction as an early mechanism for the development of white matter lesions. Bilateral carotid artery stenosis was used as a mouse model for cerebral hypoperfusion. Pimonidazole, a hypoxic cell marker, was injected prior to humane sacrifice at day 7. Myelin content, vascular density, blood-brain barrier leakages, and hypoxic cell density were quantified. Primary mouse oligodendrocyte precursor cells were exposed to hypoxia and RNA sequencing was performed. Vegfa gene expression and protein secretion was examined in an oligodendrocyte precursor cell line exposed to hypoxia. Additionally, human blood plasma VEGFA levels were measured and correlated to blood-brain barrier permeability in normal-appearing white matter and white matter lesions of cerebral small vessel disease patients and controls. Cerebral blood flow was reduced in the stenosis mice, with an increase in hypoxic cell number and blood-brain barrier leakages in the cortical areas but no changes in myelin content or vascular density. Vegfa upregulation was identified in hypoxic oligodendrocyte precursor cells, which was mediated via Hif1α and Epas1. In humans, VEGFA plasma levels were increased in patients versus controls. VEGFA plasma levels were associated with increased blood-brain barrier permeability in normal appearing white matter of patients. Cerebral hypoperfusion mediates hypoxia induced VEGFA expression in oligodendrocyte precursor cells through Hif1α/Epas1 signalling. VEGFA could in turn increase BBB permeability. In humans, increased VEGFA plasma levels in cerebral small vessel disease patients were associated with increased blood-brain barrier permeability in the normal appearing white matter. Our results support a role of VEGFA expression in cerebral hypoperfusion as seen in cerebral small vessel disease.
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Affiliation(s)
- Narek Manukjan
- Department of Pharmacology and Toxicology, Maastricht University, P.O. Box 616, 6200 MD Maastricht, The Netherlands
- CARIM - School for Cardiovascular Diseases, Maastricht University, P.O. Box 616, 6200 MD Maastricht, The Netherlands
- Neuroscience and Ophthalmology, Institute of Inflammation and Ageing, University of Birmingham, Edgbaston, Birmingham, B15 2TT UK
| | - Daria Majcher
- Department of Pharmacology and Toxicology, Maastricht University, P.O. Box 616, 6200 MD Maastricht, The Netherlands
| | - Peter Leenders
- Department of Pharmacology and Toxicology, Maastricht University, P.O. Box 616, 6200 MD Maastricht, The Netherlands
| | - Florian Caiment
- Department of Toxicogenomics, GROW–School for Oncology and Developmental Biology, Maastricht University, P.O. Box 616, 6200 MD Maastricht, The Netherlands
| | - Marcel van Herwijnen
- Department of Toxicogenomics, GROW–School for Oncology and Developmental Biology, Maastricht University, P.O. Box 616, 6200 MD Maastricht, The Netherlands
| | - Hubert J. Smeets
- Department of Toxicogenomics, GROW–School for Oncology and Developmental Biology, Maastricht University, P.O. Box 616, 6200 MD Maastricht, The Netherlands
- MHeNs—School for Mental Health and Neuroscience, Maastricht University, P.O. Box 616, 6200 MD Maastricht, The Netherlands
| | - Ernst Suidgeest
- C.J. Gorter Center for High Field MRI, Department of Radiology, Leiden University Medical Center, P.O. Box 9500, 2300 RA Leiden, the Netherlands
| | - Louise van der Weerd
- C.J. Gorter Center for High Field MRI, Department of Radiology, Leiden University Medical Center, P.O. Box 9500, 2300 RA Leiden, the Netherlands
- Department of Human Genetics, Leiden University Medical Center, P.O. Box 9500, 2300 RA Leiden, The Netherlands
| | - Tim Vanmierlo
- MHeNs—School for Mental Health and Neuroscience, Maastricht University, P.O. Box 616, 6200 MD Maastricht, The Netherlands
- Department of Neuroscience, Biomedical Research Institute, Hasselt University, 3500 Hasselt, Belgium
- Department of Psychiatry and Neuropsychology, European Graduate School of Neuroscience, Maastricht University, P.O. Box 616, 6200 MD Maastricht, The Netherlands
| | - Jacobus F. A. Jansen
- MHeNs—School for Mental Health and Neuroscience, Maastricht University, P.O. Box 616, 6200 MD Maastricht, The Netherlands
- Department of Radiology and Nuclear Medicine, Maastricht University Medical Center+, P.O. Box 5800, 6202 AZ Maastricht, The Netherlands
| | - Walter H. Backes
- CARIM - School for Cardiovascular Diseases, Maastricht University, P.O. Box 616, 6200 MD Maastricht, The Netherlands
- MHeNs—School for Mental Health and Neuroscience, Maastricht University, P.O. Box 616, 6200 MD Maastricht, The Netherlands
- Department of Radiology and Nuclear Medicine, Maastricht University Medical Center+, P.O. Box 5800, 6202 AZ Maastricht, The Netherlands
| | - Robert J. van Oostenbrugge
- CARIM - School for Cardiovascular Diseases, Maastricht University, P.O. Box 616, 6200 MD Maastricht, The Netherlands
- MHeNs—School for Mental Health and Neuroscience, Maastricht University, P.O. Box 616, 6200 MD Maastricht, The Netherlands
- Department of Neurology, Maastricht University Medical Center+, P.O. Box 5800, 6202 AZ Maastricht, The Netherlands
| | - Julie Staals
- CARIM - School for Cardiovascular Diseases, Maastricht University, P.O. Box 616, 6200 MD Maastricht, The Netherlands
- Department of Neurology, Maastricht University Medical Center+, P.O. Box 5800, 6202 AZ Maastricht, The Netherlands
| | - Daniel Fulton
- Neuroscience and Ophthalmology, Institute of Inflammation and Ageing, University of Birmingham, Edgbaston, Birmingham, B15 2TT UK
| | - Zubair Ahmed
- Neuroscience and Ophthalmology, Institute of Inflammation and Ageing, University of Birmingham, Edgbaston, Birmingham, B15 2TT UK
- Centre for Trauma Sciences Research, University of Birmingham, Edgbaston, Birmingham, B15 2TT UK
| | - W. Matthijs Blankesteijn
- Department of Pharmacology and Toxicology, Maastricht University, P.O. Box 616, 6200 MD Maastricht, The Netherlands
- CARIM - School for Cardiovascular Diseases, Maastricht University, P.O. Box 616, 6200 MD Maastricht, The Netherlands
| | - Sébastien Foulquier
- Department of Pharmacology and Toxicology, Maastricht University, P.O. Box 616, 6200 MD Maastricht, The Netherlands
- CARIM - School for Cardiovascular Diseases, Maastricht University, P.O. Box 616, 6200 MD Maastricht, The Netherlands
- MHeNs—School for Mental Health and Neuroscience, Maastricht University, P.O. Box 616, 6200 MD Maastricht, The Netherlands
- Department of Neurology, Maastricht University Medical Center+, P.O. Box 5800, 6202 AZ Maastricht, The Netherlands
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Fang J, Wang Z, Miao CY. Angiogenesis after ischemic stroke. Acta Pharmacol Sin 2023; 44:1305-1321. [PMID: 36829053 PMCID: PMC10310733 DOI: 10.1038/s41401-023-01061-2] [Citation(s) in RCA: 16] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Accepted: 02/01/2023] [Indexed: 02/26/2023] Open
Abstract
Owing to its high disability and mortality rates, stroke has been the second leading cause of death worldwide. Since the pathological mechanisms of stroke are not fully understood, there are few clinical treatment strategies available with an exception of tissue plasminogen activator (tPA), the only FDA-approved drug for the treatment of ischemic stroke. Angiogenesis is an important protective mechanism that promotes neural regeneration and functional recovery during the pathophysiological process of stroke. Thus, inducing angiogenesis in the peri-infarct area could effectively improve hemodynamics, and promote vascular remodeling and recovery of neurovascular function after ischemic stroke. In this review, we summarize the cellular and molecular mechanisms affecting angiogenesis after cerebral ischemia registered in PubMed, and provide pro-angiogenic strategies for exploring the treatment of ischemic stroke, including endothelial progenitor cells, mesenchymal stem cells, growth factors, cytokines, non-coding RNAs, etc.
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Affiliation(s)
- Jie Fang
- Department of Pharmacology, Second Military Medical University / Naval Medical University, Shanghai, 200433, China
| | - Zhi Wang
- Department of Pharmacology, Second Military Medical University / Naval Medical University, Shanghai, 200433, China
| | - Chao-Yu Miao
- Department of Pharmacology, Second Military Medical University / Naval Medical University, Shanghai, 200433, China.
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Huang S, Ren C, Luo Y, Ding Y, Ji X, Li S. New insights into the roles of oligodendrocytes regulation in ischemic stroke recovery. Neurobiol Dis 2023:106200. [PMID: 37321419 DOI: 10.1016/j.nbd.2023.106200] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Revised: 05/20/2023] [Accepted: 06/12/2023] [Indexed: 06/17/2023] Open
Abstract
Oligodendrocytes (OLs), the myelin-forming cells of the central nervous system, are integral to axonal integrity and function. Hypoxia-ischemia episodes can cause severe damage to these vulnerable cells through excitotoxicity, oxidative stress, inflammation, and mitochondrial dysfunction, leading to axonal dystrophy, neuronal dysfunction, and neurological impairments. OLs damage can result in demyelination and myelination disorders, severely impacting axonal function, structure, metabolism, and survival. Adult-onset stroke, periventricular leukomalacia, and post-stroke cognitive impairment primarily target OLs, making them a critical therapeutic target. Therapeutic strategies targeting OLs, myelin, and their receptors should be given more emphasis to attenuate ischemia injury and establish functional recovery after stroke. This review summarizes recent advances on the function of OLs in ischemic injury, as well as the present and emerging principles that serve as the foundation for protective strategies against OL deaths.
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Affiliation(s)
- Shuangfeng Huang
- Department of Neurology, Xuanwu Hospital, Capital Medical University, Beijing, China; Department of Emergency, Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Changhong Ren
- Beijing Institute of Brain Disorders, Capital Medical University, Beijing, China; Beijing Key Laboratory of Hypoxic Conditioning Translational Medicine, Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Yumin Luo
- Beijing Institute of Brain Disorders, Capital Medical University, Beijing, China; Institute of Cerebrovascular Diseases Research and Department of Neurology, Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Yuchuan Ding
- Department of Neurosurgery, Wayne State University, Detroit, MI, USA
| | - Xunming Ji
- Beijing Institute of Brain Disorders, Capital Medical University, Beijing, China; Beijing Key Laboratory of Hypoxic Conditioning Translational Medicine, Xuanwu Hospital, Capital Medical University, Beijing, China.
| | - Sijie Li
- Department of Neurology, Xuanwu Hospital, Capital Medical University, Beijing, China; Department of Emergency, Xuanwu Hospital, Capital Medical University, Beijing, China; Beijing Institute of Brain Disorders, Capital Medical University, Beijing, China.
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Ghezzi L, Bollman B, De Feo L, Piccio L, Trapp BD, Schmidt RE, Cross AH. Schwann Cell Remyelination in the Multiple Sclerosis Central Nervous System. J Transl Med 2023; 103:100128. [PMID: 36889543 PMCID: PMC10330052 DOI: 10.1016/j.labinv.2023.100128] [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: 10/10/2022] [Revised: 02/22/2023] [Accepted: 02/22/2023] [Indexed: 03/08/2023] Open
Abstract
Multiple sclerosis (MS) is a central nervous system (CNS) demyelinating disease. Failure to remyelinate successfully is common in MS lesions, often with consequent neuronal/axonal damage. CNS myelin is normally produced by oligodendroglial cells. Remyelination by Schwann cells (SchC) has been reported in spinal cord demyelination, in which SchCs are in close proximity to CNS myelin. We identified an MS cerebral lesion that was remyelinated by SchCs. This prompted us to query the extent of SchC remyelination in the brain and spinal cords of additional autopsied MS specimens. CNS tissues were obtained from the autopsies of 14 MS cases. Remyelinated lesions were identified by Luxol fast blue-periodic-acid Schiff and solochrome cyanine staining. Deparaffinized sections containing remyelinated lesions were stained with anti-glial fibrillary acid protein to identify reactive astrocytes. Glycoprotein P zero (P0) is a protein exclusive to peripheral but not CNS myelin. Areas of SchC remyelination were identified by staining with anti-P0. Myelinated regions in the index case cerebral lesion were confirmed to be of SchC origin using anti-P0 staining. Subsequently, 64 MS lesions from 14 autopsied MS cases were examined, and 23 lesions in 6 cases showed remyelination by SchCs. Lesions from the cerebrum, brainstem, and spinal cord were examined in each case. When present, SchC remyelination was most commonly located adjacent to the venules and associated with a lower surrounding density of glial fibrillary acid protein+ reactive astrocytes than areas of only oligodendroglial cell remyelination. The difference was significant only for spinal cord and brainstem lesions but not for lesions located in the brain. In conclusion, we demonstrated SchC remyelination in the cerebrum, brainstem, and spinal cord of 6 autopsied MS cases. To our knowledge, this is the first report of supratentorial SchC remyelination in MS.
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Affiliation(s)
- Laura Ghezzi
- Department of Neurology, Washington University School of Medicine, St. Louis, Missouri.
| | - Bryan Bollman
- Department of Neurology, Washington University School of Medicine, St. Louis, Missouri
| | - Luca De Feo
- Department of Neurology, Washington University School of Medicine, St. Louis, Missouri
| | - Laura Piccio
- Department of Neurology, Washington University School of Medicine, St. Louis, Missouri; Brain and Mind Centre and Charles Perkins Centre, School of Medical Sciences, Neuroscience, University of Sydney, Sydney, New South Wales, Australia
| | - Bruce D Trapp
- Department of Neurosciences, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio
| | - Robert E Schmidt
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, Missouri
| | - Anne H Cross
- Department of Neurology, Washington University School of Medicine, St. Louis, Missouri
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Jess J, Yates B, Dulau-Florea A, Parker K, Inglefield J, Lichtenstein D, Schischlik F, Ongkeko M, Wang Y, Shahani S, Cullinane A, Smith H, Kane E, Little L, Chen D, Fry TJ, Shalabi H, Wang HW, Satpathy A, Lozier J, Shah NN. CD22 CAR T-cell associated hematologic toxicities, endothelial activation and relationship to neurotoxicity. J Immunother Cancer 2023; 11:e005898. [PMID: 37295816 PMCID: PMC10277551 DOI: 10.1136/jitc-2022-005898] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/23/2023] [Indexed: 06/12/2023] Open
Abstract
BACKGROUND Hematologic toxicities, including coagulopathy, endothelial activation, and cytopenias, with CD19-targeted chimeric antigen receptor (CAR) T-cell therapies correlate with cytokine release syndrome (CRS) and neurotoxicity severity, but little is known about the extended toxicity profiles of CAR T-cells targeting alternative antigens. This report characterizes hematologic toxicities seen following CD22 CAR T-cells and their relationship to CRS and neurotoxicity. METHODS We retrospectively characterized hematologic toxicities associated with CRS seen on a phase 1 study of anti-CD22 CAR T-cells for children and young adults with relapsed/refractory CD22+ hematologic malignancies. Additional analyses included correlation of hematologic toxicities with neurotoxicity and exploring effects of hemophagocytic lymphohistiocytosis-like toxicities (HLH) on bone marrow recovery and cytopenias. Coagulopathy was defined as evidence of bleeding or abnormal coagulation parameters. Hematologic toxicities were graded by Common Terminology Criteria for Adverse Events V.4.0. RESULTS Across 53 patients receiving CD22 CAR T-cells who experienced CRS, 43 (81.1%) patients achieved complete remission. Eighteen (34.0%) patients experienced coagulopathy, of whom 16 had clinical manifestations of mild bleeding (typically mucosal bleeding) which generally subsided following CRS resolution. Three had manifestations of thrombotic microangiopathy. Patients with coagulopathy had higher peak ferritin, D-dimer, prothrombin time, international normalized ratio (INR), lactate dehydrogenase (LDH), tissue factor, prothrombin fragment F1+2 and soluble vascular cell adhesion molecule-1 (s-VCAM-1). Despite a relatively higher incidence of HLH-like toxicities and endothelial activation, overall neurotoxicity was generally less severe than reported with CD19 CAR T-cells, prompting additional analysis to explore CD22 expression in the central nervous system (CNS). Single-cell analysis revealed that in contrast to CD19 expression, CD22 is not on oligodendrocyte precursor cells or on neurovascular cells but is seen on mature oligodendrocytes. Lastly, among those attaining CR, grade 3-4 neutropenia and thrombocytopenia were seen in 65% of patients at D28. CONCLUSION With rising incidence of CD19 negative relapse, CD22 CAR T-cells are increasingly important for the treatment of B-cell malignancies. In characterizing hematologic toxicities on CD22 CAR T-cells, we demonstrate that despite endothelial activation, coagulopathy, and cytopenias, neurotoxicity was relatively mild and that CD22 and CD19 expression in the CNS differed, providing one potential hypothesis for divergent neurotoxicity profiles. Systematic characterization of on-target off-tumor toxicities of novel CAR T-cell constructs will be vital as new antigens are targeted. TRIAL REGISTRATION NUMBER NCT02315612.
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Affiliation(s)
- Jennifer Jess
- Pediatric Oncology Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Bonnie Yates
- Pediatric Oncology Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Alina Dulau-Florea
- Department of Laboratory Medicine, National Institutes of Health, Bethesda, Maryland, USA
| | - Kevin Parker
- Department of Pathology, Stanford University, Stanford, California, USA
| | - Jon Inglefield
- Applied Developmental Research Directorate, Leidos Biomedical Research, Inc, Frederick National Laboratory for Cancer Research, National Cancer Institute, Bethesda, Maryland, USA
| | - Dan Lichtenstein
- Pediatric Oncology Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Fiorella Schischlik
- Cancer Data Science Laboratory, National Cancer Institute, Bethesda, Maryland, USA
| | - Martin Ongkeko
- Department of Transfusion Medicine, National Institutes of Health, Bethesda, Maryland, USA
| | - Yanyu Wang
- Applied Developmental Research Directorate, Leidos Biomedical Research, Inc, Frederick National Laboratory for Cancer Research, National Cancer Institute, Bethesda, Maryland, USA
| | - Shilpa Shahani
- Pediatric Oncology Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Ann Cullinane
- Department of Laboratory Medicine, National Institutes of Health, Bethesda, Maryland, USA
| | - Hannah Smith
- Pediatric Oncology Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Eli Kane
- Pediatric Oncology Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Lauren Little
- Pediatric Oncology Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Dong Chen
- Mayo Clinic, Rochester, Minnesota, USA
| | - Terry J Fry
- University of Colorado Denver Children's Hospital Colorado Research Institute, Aurora, Colorado, USA
| | - Haneen Shalabi
- Pediatric Oncology Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Hao-Wei Wang
- Laboratory of Pathology, National Cancer Institute, Bethesda, Maryland, USA
| | - Ansuman Satpathy
- Department of Pathology, Stanford University, Stanford, California, USA
| | - Jay Lozier
- Department of Laboratory Medicine, National Institutes of Health, Bethesda, Maryland, USA
| | - Nirali N Shah
- Pediatric Oncology Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
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10
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Yi C, Verkhratsky A, Niu J. Pathological potential of oligodendrocyte precursor cells: terra incognita. Trends Neurosci 2023:S0166-2236(23)00103-0. [PMID: 37183154 DOI: 10.1016/j.tins.2023.04.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2023] [Revised: 03/12/2023] [Accepted: 04/13/2023] [Indexed: 05/16/2023]
Abstract
Adult oligodendrocyte precursor cells (aOPCs), transformed from fetal OPCs, are idiosyncratic neuroglia of the central nervous system (CNS) that are distinct in many ways from other glial cells. OPCs have been classically studied in the context of their remyelinating capacity. Recent studies, however, revealed that aOPCs not only contribute to post-lesional remyelination but also play diverse crucial roles in multiple neurological diseases. In this review we briefly present the physiology of aOPCs and summarize current knowledge of the beneficial and detrimental roles of aOPCs in different CNS diseases. We discuss unique features of aOPC death, reactivity, and changes during senescence, as well as aOPC interactions with other glial cells and pathological remodeling during disease. Finally, we outline future perspectives for the study of aOPCs in brain pathologies which may instigate the development of aOPC-targeting therapeutic strategies.
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Affiliation(s)
- Chenju Yi
- Research Centre, Seventh Affiliated Hospital of Sun Yat-sen University, Shenzhen 518107, China; Department of Pathology, First Affiliated Hospital of Gannan Medical University, Ganzhou, 341000, China; Shenzhen Key Laboratory of Chinese Medicine Active Substance Screening and Translational Research, Shenzhen 518107, China; Guangdong Provincial Key Laboratory of Brain Function and Disease, Guangzhou, China.
| | - Alexei Verkhratsky
- Faculty of Biology, Medicine, and Health, University of Manchester, Manchester M13 9PL, UK; Achucarro Centre for Neuroscience, Basque Foundation for Science (IKERBASQUE), Bilbao 48011, Spain; Department of Stem Cell Biology, State Research Institute Centre for Innovative Medicine, LT-01102 Vilnius, Lithuania; Department of Forensic Analytical Toxicology, School of Forensic Medicine, China Medical University, Shenyang, China.
| | - Jianqin Niu
- Department of Histology and Embryology, Chongqing Key Laboratory of Neurobiology, Brain and Intelligence Research Key Laboratory of Chongqing Education Commission, Third Military Medical University, Chongqing 400038, China.
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11
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Hu X, Geng P, Zhao X, Wang Q, Liu C, Guo C, Dong W, Jin X. The NG2-glia is a potential target to maintain the integrity of neurovascular unit after acute ischemic stroke. Neurobiol Dis 2023; 180:106076. [PMID: 36921779 DOI: 10.1016/j.nbd.2023.106076] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Revised: 02/07/2023] [Accepted: 03/07/2023] [Indexed: 03/18/2023] Open
Abstract
The neurovascular unit (NVU) plays a critical role in health and disease. In the current review, we discuss the critical role of a class of neural/glial antigen 2 (NG2)-expressing glial cells (NG2-glia) in regulating NVU after acute ischemic stroke (AIS). We first introduce the role of NG2-glia in the formation of NVU during development as well as aging-induced damage to NVU and accompanying NG2-glia change. We then discuss the reciprocal interactions between NG2-glia and the other component cells of NVU, emphasizing the factors that could influence NG2-glia. Damage to the NVU integrity is the pathological basis of edema and hemorrhagic transformation, the most dreaded complication after AIS. The role of NG2-glia in AIS-induced NVU damage and the effect of NG2-glia transplantation on AIS-induced NVU damage are summarized. We next discuss the role of NG2-glia and the effect of NG2-glia transplantation in oligodendrogenesis and white matter repair as well as angiogenesis which is associated with the outcome of the patients after AIS. Finally, we review the current strategies to promote NG2-glia proliferation and differentiation and propose to use the dental pulp stem cells (DPSC)-derived exosome as a promising strategy to reduce AIS-induced injury and promote repair through maintaining the integrity of NVU by regulating endogenous NG2-glia proliferation and differentiation.
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Affiliation(s)
- Xiaoyan Hu
- Beijing Key Laboratory of Cancer Invasion and Metastasis Research, Department of Histology and Embryology, School of Basic Medical Sciences, Advanced Innovation Center for Human Brain Protection, Capital Medical University, Beijing 100069, China
| | - Panpan Geng
- Beijing Key Laboratory of Cancer Invasion and Metastasis Research, Department of Histology and Embryology, School of Basic Medical Sciences, Advanced Innovation Center for Human Brain Protection, Capital Medical University, Beijing 100069, China
| | - Xiaoyun Zhao
- Beijing Key Laboratory of Cancer Invasion and Metastasis Research, Department of Histology and Embryology, School of Basic Medical Sciences, Advanced Innovation Center for Human Brain Protection, Capital Medical University, Beijing 100069, China
| | - Qian Wang
- Beijing Key Laboratory of Cancer Invasion and Metastasis Research, Department of Histology and Embryology, School of Basic Medical Sciences, Advanced Innovation Center for Human Brain Protection, Capital Medical University, Beijing 100069, China
| | - Changqing Liu
- Department of Neurosurgery, Beijing Sanbo Brain Hospital, Capital Medical University, Beijing, China
| | - Chun Guo
- School of Biosciences, University of Sheffield, Firth Court, Western Bank, Sheffield, UK
| | - Wen Dong
- China National Clinical Research Center for Neurological Diseases, Beijing Tiantan Hospital, Capital Medical University, Beijing, China.
| | - Xinchun Jin
- Beijing Key Laboratory of Cancer Invasion and Metastasis Research, Department of Histology and Embryology, School of Basic Medical Sciences, Advanced Innovation Center for Human Brain Protection, Capital Medical University, Beijing 100069, China; Institute of Neuroscience, The Second Affiliated Hospital of Soochow University, Suzhou 215004, China.
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12
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Cashion JM, Young KM, Sutherland BA. How does neurovascular unit dysfunction contribute to multiple sclerosis? Neurobiol Dis 2023; 178:106028. [PMID: 36736923 DOI: 10.1016/j.nbd.2023.106028] [Citation(s) in RCA: 15] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Revised: 01/17/2023] [Accepted: 01/30/2023] [Indexed: 02/04/2023] Open
Abstract
Multiple sclerosis is an inflammatory demyelinating disease of the central nervous system (CNS) and the most common non-traumatic cause of neurological disability in young adults. Multiple sclerosis clinical care has improved considerably due to the development of disease-modifying therapies that effectively modulate the peripheral immune response and reduce relapse frequency. However, current treatments do not prevent neurodegeneration and disease progression, and efforts to prevent multiple sclerosis will be hampered so long as the cause of this disease remains unknown. Risk factors for multiple sclerosis development or severity include vitamin D deficiency, cigarette smoking and youth obesity, which also impact vascular health. People with multiple sclerosis frequently experience blood-brain barrier breakdown, microbleeds, reduced cerebral blood flow and diminished neurovascular reactivity, and it is possible that these vascular pathologies are tied to multiple sclerosis development. The neurovascular unit is a cellular network that controls neuroinflammation, maintains blood-brain barrier integrity, and tightly regulates cerebral blood flow, matching energy supply to neuronal demand. The neurovascular unit is composed of vessel-associated cells such as endothelial cells, pericytes and astrocytes, however neuronal and other glial cell types also comprise the neurovascular niche. Recent single-cell transcriptomics data, indicate that neurovascular cells, particular cells of the microvasculature, are compromised within multiple sclerosis lesions. Large-scale genetic and small-scale cell biology studies also suggest that neurovascular dysfunction could be a primary pathology contributing to multiple sclerosis development. Herein we revisit multiple sclerosis risk factors and multiple sclerosis pathophysiology and highlight the known and potential roles of neurovascular unit dysfunction in multiple sclerosis development and disease progression. We also evaluate the suitability of the neurovascular unit as a potential target for future disease modifying therapies for multiple sclerosis.
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Affiliation(s)
- Jake M Cashion
- Tasmanian School of Medicine, College of Health and Medicine, University of Tasmania, Hobart, Tasmania, Australia
| | - Kaylene M Young
- Menzies Institute for Medical Research, University of Tasmania, Hobart, Tasmania 7000, Australia
| | - Brad A Sutherland
- Tasmanian School of Medicine, College of Health and Medicine, University of Tasmania, Hobart, Tasmania, Australia.
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13
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Fang LP, Liu Q, Meyer E, Welle A, Huang W, Scheller A, Kirchhoff F, Bai X. A subset of OPCs do not express Olig2 during development which can be increased in the adult by brain injuries and complex motor learning. Glia 2023; 71:415-430. [PMID: 36308278 DOI: 10.1002/glia.24284] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2022] [Revised: 09/29/2022] [Accepted: 10/07/2022] [Indexed: 11/08/2022]
Abstract
Oligodendrocyte precursor cells (OPCs) are uniformly distributed in the mammalian brain; however, their function is rather heterogeneous in respect to their origin, location, receptor/channel expression and age. The basic helix-loop-helix transcription factor Olig2 is expressed in all OPCs as a pivotal determinant of their differentiation. Here, we identified a subset (2%-26%) of OPCs lacking Olig2 in various brain regions including cortex, corpus callosum, CA1 and dentate gyrus. These Olig2 negative (Olig2neg ) OPCs were enriched in the juvenile brain and decreased subsequently with age, being rarely detectable in the adult brain. However, the loss of this population was not due to apoptosis or microglia-dependent phagocytosis. Unlike Olig2pos OPCs, these subset cells were rarely labeled for the mitotic marker Ki67. And, accordingly, BrdU was incorporated only by a three-day long-term labeling but not by a 2-hour short pulse, suggesting these cells do not proliferate any more but were derived from proliferating OPCs. The Olig2neg OPCs exhibited a less complex morphology than Olig2pos ones. Olig2neg OPCs preferentially remain in a precursor stage rather than differentiating into highly branched oligodendrocytes. Changing the adjacent brain environment, for example, by acute injuries or by complex motor learning tasks, stimulated the transition of Olig2pos OPCs to Olig2neg cells in the adult. Taken together, our results demonstrate that OPCs transiently suppress Olig2 upon changes of the brain activity.
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Affiliation(s)
- Li-Pao Fang
- Molecular Physiology, Center for Integrative Physiology and Molecular Medicine, University of Saarland, Homburg, Germany
| | - Qing Liu
- Molecular Physiology, Center for Integrative Physiology and Molecular Medicine, University of Saarland, Homburg, Germany
| | - Erika Meyer
- Molecular Physiology, Center for Integrative Physiology and Molecular Medicine, University of Saarland, Homburg, Germany.,Laboratory of Brain Ischemia and Neuroprotection, Department of Pharmacology and Therapeutics, State University of Maringá, Maringá, Brazil
| | - Anna Welle
- Department of Genetics and EpiGenetics, University of Saarland, Saarbrücken, Germany
| | - Wenhui Huang
- Molecular Physiology, Center for Integrative Physiology and Molecular Medicine, University of Saarland, Homburg, Germany
| | - Anja Scheller
- Molecular Physiology, Center for Integrative Physiology and Molecular Medicine, University of Saarland, Homburg, Germany
| | - Frank Kirchhoff
- Molecular Physiology, Center for Integrative Physiology and Molecular Medicine, University of Saarland, Homburg, Germany.,Experimental Research Center for Normal and Pathological Aging, University of Medicine and Pharmacy of Craiova, Craiova
| | - Xianshu Bai
- Molecular Physiology, Center for Integrative Physiology and Molecular Medicine, University of Saarland, Homburg, Germany
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14
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Xiao G, Kumar R, Komuro Y, Burguet J, Kakarla V, Azizkhanian I, Sheth SA, Williams CK, Zhang XR, Macknicki M, Brumm A, Kawaguchi R, Mai P, Kaneko N, Vinters HV, Carmichael ST, Havton LA, DeCarli C, Hinman JD. IL-17/CXCL5 signaling within the oligovascular niche mediates human and mouse white matter injury. Cell Rep 2022; 41:111848. [PMID: 36543124 PMCID: PMC10026849 DOI: 10.1016/j.celrep.2022.111848] [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: 10/31/2021] [Revised: 10/10/2022] [Accepted: 11/28/2022] [Indexed: 12/24/2022] Open
Abstract
Cerebral small vessel disease and brain white matter injury are worsened by cardiovascular risk factors including obesity. Molecular pathways in cerebral endothelial cells activated by chronic cerebrovascular risk factors alter cell-cell signaling, blocking endogenous and post-ischemic white matter repair. Using cell-specific translating ribosome affinity purification (RiboTag) in white matter endothelia and oligodendrocyte progenitor cells (OPCs), we identify a coordinated interleukin-chemokine signaling cascade within the oligovascular niche of subcortical white matter that is triggered by diet-induced obesity (DIO). DIO induces interleukin-17B (IL-17B) signaling that acts on the cerebral endothelia through IL-17Rb to increase both circulating and local endothelial expression of CXCL5. In white matter endothelia, CXCL5 promotes the association of OPCs with the vasculature and triggers OPC gene expression programs regulating cell migration through chemokine signaling. Targeted blockade of IL-17B reduced vessel-associated OPCs by reducing endothelial CXCL5 expression. In multiple human cohorts, blood levels of CXCL5 function as a diagnostic and prognostic biomarker of vascular cognitive impairment.
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Affiliation(s)
- Guanxi Xiao
- Department of Neurology, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, USA
| | - Rosie Kumar
- Department of Neurology, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, USA
| | - Yutaro Komuro
- Department of Neurology, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, USA
| | - Jasmine Burguet
- Institut Jean-Pierre Bourgin, INRA, AgroParisTech, CNRS, Université Paris-Saclay, 78000 Versailles, France
| | - Visesha Kakarla
- Department of Neurology, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, USA
| | - Ida Azizkhanian
- New York Medical College, School of Medicine, Valhalla, NY, USA
| | - Sunil A Sheth
- Department of Neurology, UT Health McGovern School of Medicine, Houston, TX, USA
| | - Christopher K Williams
- Department of Neuropathology, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, USA
| | - Xinhai R Zhang
- Department of Neuropathology, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, USA
| | - Michal Macknicki
- Department of Neurology, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, USA
| | - Andrew Brumm
- Department of Neurology, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, USA
| | - Riki Kawaguchi
- Department of Neurology, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, USA; Department of Psychiatry, Semel Institute for Neuroscience and Human Behavior, University of California, Los Angeles, Los Angeles, CA, USA
| | - Phu Mai
- Department of Neurology, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, USA
| | - Naoki Kaneko
- Department of Radiological Sciences, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, USA
| | - Harry V Vinters
- Department of Neuropathology, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, USA
| | - S Thomas Carmichael
- Department of Neurology, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, USA
| | - Leif A Havton
- Department of Neurology, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, USA; Department of Neurobiology, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, USA
| | - Charles DeCarli
- Department of Neurology, University of California, Davis, Davis, CA, USA
| | - Jason D Hinman
- Department of Neurology, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, USA.
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15
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Reciprocal Interactions between Oligodendrocyte Precursor Cells and the Neurovascular Unit in Health and Disease. Cells 2022; 11:cells11121954. [PMID: 35741083 PMCID: PMC9221698 DOI: 10.3390/cells11121954] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Revised: 06/02/2022] [Accepted: 06/14/2022] [Indexed: 12/04/2022] Open
Abstract
Oligodendrocyte precursor cells (OPCs) are mostly known for their capability to differentiate into oligodendrocytes and myelinate axons. However, they have been observed to frequently interact with cells of the neurovascular unit during development, homeostasis, and under pathological conditions. The functional consequences of these interactions are largely unclear, but are increasingly studied. Although OPCs appear to be a rather homogenous cell population in the central nervous system (CNS), they present with an enormous potential to adapt to their microenvironment. In this review, it is summarized what is known about the various roles of OPC-vascular interactions, and the circumstances under which they have been observed.
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16
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Abstract
Stroke remains a significant unmet clinical need with few treatment options that have a very narrow therapeutic window, thereby causing massive mortality and morbidity in the United States and around the world. Accordingly, finding safe and effective novel treatments with a wider therapeutic window stands as an urgent need in stroke. The progressive inflammation that occurs centrally and peripherally after stroke serves as a unique therapeutic target to retard and even halt the secondary cell death. Stem cell therapy represents a potent approach that can diminish inflammation in both the stroke brain and periphery (eg, spleen), advancing a paradigm shift from a traditionally brain-focused therapy to treating stroke as a neurological disorder with a significant peripheral pathology. The purpose of this review article is to highlight the inflammation-mediated secondary cell death that plagues both brain and spleen in stroke and to evaluate the therapeutic potential of stem cell therapy in dampening these inflammatory responses.
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Affiliation(s)
- Stefan Anthony
- Lake Erie College of Osteopathic Medicine, 5000 Lakewood Ranch Boulevard, Bradenton, FL 34211, USA
| | - Dorothy Cabantan
- Michigan State University College of Osteopathic Medicine, 965 Wilson Rd, East Lansing, MI 48824, USA
| | - Molly Monsour
- Center of Excellence for Aging and Brain Repair, Department of Neurosurgery and Brain Repair, University of South Florida Morsani College of Medicine, 12901 Bruce B Downs Blvd, Tampa, FL 33612, USA
| | - Cesario V. Borlongan
- Center of Excellence for Aging and Brain Repair, Department of Neurosurgery and Brain Repair, University of South Florida Morsani College of Medicine, 12901 Bruce B Downs Blvd, Tampa, FL 33612, USA
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17
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Abstract
Inflammation and its myriad pathways are now recognized to play both causal and consequential roles in vascular brain health. From acting as a trigger for vascular brain injury, as evidenced by the coronavirus disease 2019 (COVID-19) pandemic, to steadily increasing the risk for chronic cerebrovascular disease, distinct inflammatory cascades play differential roles in varying states of cerebrovascular injury. New evidence is regularly emerging that characterizes the role of specific inflammatory pathways in these varying states including those at risk for stroke and chronic cerebrovascular injury as well as during the acute, subacute, and repair phases of stroke. Here, we aim to highlight recent basic science and clinical evidence for many distinct inflammatory cascades active in these varying states of cerebrovascular injury. The role of cerebrovascular infections, spotlighted by the severe acute respiratory syndrome coronavirus 2 pandemic, and its association with increased stroke risk is also reviewed. Rather than converging on a shared mechanism, these emerging studies implicate varied and distinct inflammatory processes in vascular brain injury and repair. Recognition of the phasic nature of inflammatory cascades on varying states of cerebrovascular disease is likely essential to the development and implementation of an anti-inflammatory strategy in the prevention, treatment, and repair of vascular brain injury. Although advances in revascularization have taught us that time is brain, targeting inflammation for the treatment of cerebrovascular disease will undoubtedly show us that timing is brain.
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Affiliation(s)
- Katherine T Mun
- Department of Neurology, David Geffen School of Medicine, University of California Los Angeles
| | - Jason D Hinman
- Department of Neurology, David Geffen School of Medicine, University of California Los Angeles
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18
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Qiu M, Zong JB, He QW, Liu YX, Wan Y, Li M, Zhou YF, Wu JH, Hu B. Cell Heterogeneity Uncovered by Single-Cell RNA Sequencing Offers Potential Therapeutic Targets for Ischemic Stroke. Aging Dis 2022; 13:1436-1454. [PMID: 36186129 PMCID: PMC9466965 DOI: 10.14336/ad.2022.0212] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2021] [Accepted: 02/12/2022] [Indexed: 11/06/2022] Open
Abstract
Ischemic stroke is a detrimental neurological disease characterized by an irreversible infarct core surrounded by an ischemic penumbra, a salvageable region of brain tissue. Unique roles of distinct brain cell subpopulations within the neurovascular unit and peripheral immune cells during ischemic stroke remain elusive due to the heterogeneity of cells in the brain. Single-cell RNA sequencing (scRNA-seq) allows for an unbiased determination of cellular heterogeneity at high-resolution and identification of cell markers, thereby unveiling the principal brain clusters within the cell-type-specific gene expression patterns as well as cell-specific subclusters and their functions in different pathways underlying ischemic stroke. In this review, we have summarized the changes in differentiation trajectories of distinct cell types and highlighted the specific pathways and genes in brain cells that are impacted by stroke. This review is expected to inspire new research and provide directions for investigating the potential pathological mechanisms and novel treatment strategies for ischemic stroke at the level of a single cell.
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Affiliation(s)
| | | | | | | | | | | | | | - Jie-hong Wu
- Correspondence should be addressed to: Dr. Bo Hu () and Dr. Jie-hong Wu (), Department of Neurology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Bo Hu
- Correspondence should be addressed to: Dr. Bo Hu () and Dr. Jie-hong Wu (), Department of Neurology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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19
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Gliovascular Mechanisms and White Matter Injury in Vascular Cognitive Impairment and Dementia. Stroke 2022. [DOI: 10.1016/b978-0-323-69424-7.00013-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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20
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Wang X, Zang J, Yang Y, Lu S, Guan Q, Ye D, Wang Z, Zhou H, Li K, Wang Q, Wu Y, Luan Z. Transplanted Human Oligodendrocyte Progenitor Cells Restore Neurobehavioral Deficits in a Rat Model of Preterm White Matter Injury. Front Neurol 2021; 12:749244. [PMID: 34858313 PMCID: PMC8631304 DOI: 10.3389/fneur.2021.749244] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Accepted: 10/18/2021] [Indexed: 11/13/2022] Open
Abstract
Background: Preterm white matter injury (PWMI) is a common brain injury and a leading cause of life-long neurological deficits in premature infants; however, no effective treatment is available yet. This study aimed to investigate the fate and effectiveness of transplanted human oligodendrocyte progenitor cells (hOPCs) in a rat model of PWMI. Methods: Hypoxia-ischemia was induced in rats at postnatal day 3, and hOPCs (6 × 105 cells/5 μL) were intracerebroventricularly transplanted at postnatal day 7. Neurobehavior was assessed 12 weeks post-transplant using the CatWalk test and Morris water maze test. Histological analyses, as well as immunohistochemical and transmission electron microscopy, were performed after transcardial perfusion. Results: Transplanted hOPCs survived for 13 weeks in PWMI brains. They were widely distributed in the injured white matter, and migrated along the corpus callosum to the contralateral hemisphere. Notably, 82.77 ± 3.27% of transplanted cells differentiated into mature oligodendrocytes, which produced myelin around the axons. Transplantation of hOPCs increased the fluorescence intensity of myelin basic protein and the thickness of myelin sheaths as observed in immunostaining and transmission electron microscopy, while it reduced white matter atrophy at the level of gross morphology. With regard to neurobehavior, the CatWalk test revealed improved locomotor function and inter-paw coordination after transplantation, and the cognitive functions of hOPC-transplanted rats were restored as revealed by the Morris water maze test. Conclusions: Myelin restoration through the transplantation of hOPCs led to neurobehavioral improvements in PWMI rats, suggesting that transplanting hOPCs may provide an effective and promising therapeutic strategy in children with PWMI.
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Affiliation(s)
- Xiaohua Wang
- The Second School of Clinical Medicine, Southern Medical University, Guangzhou, China.,Department of Pediatrics, The Sixth Medical Center of PLA General Hospital, Beijing, China.,Department of Pediatrics, Affiliated Hospital of Nantong University, Nantong, China
| | - Jing Zang
- Department of Pediatrics, The Sixth Medical Center of PLA General Hospital, Beijing, China
| | - Yinxiang Yang
- Department of Pediatrics, The Sixth Medical Center of PLA General Hospital, Beijing, China
| | - Siliang Lu
- Department of Pediatrics, The Sixth Medical Center of PLA General Hospital, Beijing, China
| | - Qian Guan
- Department of Pediatrics, The Sixth Medical Center of PLA General Hospital, Beijing, China
| | - Dou Ye
- Department of Pediatrics, The Sixth Medical Center of PLA General Hospital, Beijing, China
| | - Zhaoyan Wang
- Department of Pediatrics, The Sixth Medical Center of PLA General Hospital, Beijing, China
| | - Haipeng Zhou
- Department of Pediatrics, The Sixth Medical Center of PLA General Hospital, Beijing, China
| | - Ke Li
- Department of Pediatrics, The Sixth Medical Center of PLA General Hospital, Beijing, China
| | - Qian Wang
- Department of Pediatrics, The Sixth Medical Center of PLA General Hospital, Beijing, China
| | - Youjia Wu
- Department of Pediatrics, Affiliated Hospital of Nantong University, Nantong, China
| | - Zuo Luan
- The Second School of Clinical Medicine, Southern Medical University, Guangzhou, China.,Department of Pediatrics, The Sixth Medical Center of PLA General Hospital, Beijing, China
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21
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Li W, He T, Shi R, Song Y, Wang L, Zhang Z, Tang Y, Yang GY, Wang Y. Oligodendrocyte Precursor Cells Transplantation Improves Stroke Recovery via Oligodendrogenesis, Neurite Growth and Synaptogenesis. Aging Dis 2021; 12:2096-2112. [PMID: 34881088 PMCID: PMC8612617 DOI: 10.14336/ad.2021.0416] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Accepted: 04/16/2021] [Indexed: 01/09/2023] Open
Abstract
Ischemic-induced white matter injury is strongly correlated with the poor neurological outcomes in stroke patients. The transplantation of oligodendrocyte precursor cells (OPCs) is an effective candidate for enhancing re-myelination in congenitally dysmyelinated brain and spinal cord. Nevertheless, mechanisms governing the recovery of white matter and axon after OPCs transplantation are incompletely understood in ischemic stroke. In this study, OPCs were transplanted into the ischemic brain at 7 days after transient middle cerebral artery occlusion (tMCAO). We observed improved behavior recovery and reduced brain atrophy volume at 28 days after OPCs transplantation. Moreover, our results identified that myelin sheath integrity and endogenous OPCs proliferation and migration were promoted after OPCs transplantation. By contrast, AMD3100, an antagonist of C-X-C chemokine receptor type 4, eliminated the beneficial effects of OPCs transplantation on white matter integrity and endogenous oligodendrogenesis. In addition, the improvement of neurite growth and synaptogenesis after OPCs transplantation in ischemic brain or OPC co-cultured neurons, potentially through the upregulation of Netrin-1, was indicated by increased protein levels of synaptophysin and postsynaptic density protein 95. Knockdown of Deleted in Colorectal Carcinoma, a receptor of Netrin-1, prevented increased neurite growth and synaptogenesis in neurons co-cultured with OPCs. In conclusion, our studies suggested that engrafted OPCs promoted the recovery after ischemic stroke by enhancing endogenous oligodendrogenesis, neurite growth, and synaptogenesis; the last two being mediated by the Netrin-1/DCC axis.
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Affiliation(s)
- Wanlu Li
- School of Biomedical Engineering and Med-X Research Institute, Shanghai Jiao Tong University, Shanghai, China.
| | - Tingting He
- Department of Neurology, Zhongshan Hospital, Fudan University, Shanghai, China.
| | - Rubing Shi
- School of Biomedical Engineering and Med-X Research Institute, Shanghai Jiao Tong University, Shanghai, China.
| | - Yaying Song
- Department of Neurology, Ruijin Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.
| | - Liping Wang
- Department of Neurology, Ruijin Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.
| | - Zhijun Zhang
- School of Biomedical Engineering and Med-X Research Institute, Shanghai Jiao Tong University, Shanghai, China.
| | - Yaohui Tang
- School of Biomedical Engineering and Med-X Research Institute, Shanghai Jiao Tong University, Shanghai, China.
| | - Guo-Yuan Yang
- School of Biomedical Engineering and Med-X Research Institute, Shanghai Jiao Tong University, Shanghai, China.,Department of Neurology, Ruijin Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.,Correspondence should be addressed to: Drs. Yongting Wang (E-mail:) and Guo-Yuan Yang (E-mail: ), Med-X Research Institute, Shanghai Jiao Tong University, Shanghai, China
| | - Yongting Wang
- School of Biomedical Engineering and Med-X Research Institute, Shanghai Jiao Tong University, Shanghai, China.,Correspondence should be addressed to: Drs. Yongting Wang (E-mail:) and Guo-Yuan Yang (E-mail: ), Med-X Research Institute, Shanghai Jiao Tong University, Shanghai, China
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22
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Alia C, Cangi D, Massa V, Salluzzo M, Vignozzi L, Caleo M, Spalletti C. Cell-to-Cell Interactions Mediating Functional Recovery after Stroke. Cells 2021; 10:3050. [PMID: 34831273 PMCID: PMC8623942 DOI: 10.3390/cells10113050] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Revised: 10/27/2021] [Accepted: 11/02/2021] [Indexed: 12/22/2022] Open
Abstract
Ischemic damage in brain tissue triggers a cascade of molecular and structural plastic changes, thus influencing a wide range of cell-to-cell interactions. Understanding and manipulating this scenario of intercellular connections is the Holy Grail for post-stroke neurorehabilitation. Here, we discuss the main findings in the literature related to post-stroke alterations in cell-to-cell interactions, which may be either detrimental or supportive for functional recovery. We consider both neural and non-neural cells, starting from astrocytes and reactive astrogliosis and moving to the roles of the oligodendrocytes in the support of vulnerable neurons and sprouting inhibition. We discuss the controversial role of microglia in neural inflammation after injury and we conclude with the description of post-stroke alterations in pyramidal and GABAergic cells interactions. For all of these sections, we review not only the spontaneous evolution in cellular interactions after ischemic injury, but also the experimental strategies which have targeted these interactions and that are inspiring novel therapeutic strategies for clinical application.
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Affiliation(s)
- Claudia Alia
- Neuroscience Institute, National Research Council (CNR), Via G. Moruzzi 1, 56124 Pisa, Italy; (V.M.); (M.S.); (M.C.); (C.S.)
| | - Daniele Cangi
- Department of Neurosciences, Psychology, Drugs and Child Health Area, School of Psychology, University of Florence, 50121 Florence, Italy;
| | - Verediana Massa
- Neuroscience Institute, National Research Council (CNR), Via G. Moruzzi 1, 56124 Pisa, Italy; (V.M.); (M.S.); (M.C.); (C.S.)
| | - Marco Salluzzo
- Neuroscience Institute, National Research Council (CNR), Via G. Moruzzi 1, 56124 Pisa, Italy; (V.M.); (M.S.); (M.C.); (C.S.)
- Department of Neurosciences, Psychology, Drugs and Child Health Area, School of Psychology, University of Florence, 50121 Florence, Italy;
| | - Livia Vignozzi
- Department of Biomedical Sciences, University of Padua, Viale G. Colombo 3, 35121 Padua, Italy;
| | - Matteo Caleo
- Neuroscience Institute, National Research Council (CNR), Via G. Moruzzi 1, 56124 Pisa, Italy; (V.M.); (M.S.); (M.C.); (C.S.)
- Department of Biomedical Sciences, University of Padua, Viale G. Colombo 3, 35121 Padua, Italy;
| | - Cristina Spalletti
- Neuroscience Institute, National Research Council (CNR), Via G. Moruzzi 1, 56124 Pisa, Italy; (V.M.); (M.S.); (M.C.); (C.S.)
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23
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Sherafat A, Pfeiffer F, Nishiyama A. Shaping of Regional Differences in Oligodendrocyte Dynamics by Regional Heterogeneity of the Pericellular Microenvironment. Front Cell Neurosci 2021; 15:721376. [PMID: 34690700 PMCID: PMC8531270 DOI: 10.3389/fncel.2021.721376] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2021] [Accepted: 08/31/2021] [Indexed: 12/12/2022] Open
Abstract
Oligodendrocyte precursor cells (OPCs) are glial cells that differentiate into mature oligodendrocytes (OLs) to generate new myelin sheaths. While OPCs are distributed uniformly throughout the gray and white matter in the developing and adult brain, those in white matter proliferate and differentiate into oligodendrocytes at a greater rate than those in gray matter. There is currently lack of evidence to suggest that OPCs comprise genetically and transcriptionally distinct subtypes. Rather, the emerging view is that they exist in different cell and functional states, depending on their location and age. Contrary to the normal brain, demyelinated lesions in the gray matter of multiple sclerosis brains contain more OPCs and OLs and are remyelinated more robustly than those in white matter. The differences in the dynamic behavior of OL lineage cells are likely to be influenced by their microenvironment. There are regional differences in astrocytes, microglia, the vasculature, and the composition of the extracellular matrix (ECM). We will discuss how the regional differences in these elements surrounding OPCs might shape their phenotypic variability in normal and demyelinated states.
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Affiliation(s)
- Amin Sherafat
- Department of Physiology and Neurobiology, University of Connecticut, Storrs, CT, United States
| | - Friederike Pfeiffer
- Department of Physiology and Neurobiology, University of Connecticut, Storrs, CT, United States.,Department of Neurophysiology, Institute of Physiology, Eberhard Karls University of Tübingen, Tübingen, Germany
| | - Akiko Nishiyama
- Department of Physiology and Neurobiology, University of Connecticut, Storrs, CT, United States.,Institute of Systems Genomics, University of Connecticut, Storrs, CT, United States.,The Institute of Brain and Cognitive Sciences, University of Connecticut, Storrs, CT, United States
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24
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Delayed rFGF21 Administration Improves Cerebrovascular Remodeling and White Matter Repair After Focal Stroke in Diabetic Mice. Transl Stroke Res 2021; 13:311-325. [PMID: 34523038 DOI: 10.1007/s12975-021-00941-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Revised: 07/13/2021] [Accepted: 07/18/2021] [Indexed: 10/20/2022]
Abstract
Type 2 diabetes mellitus (T2DM) is a major comorbidity exacerbating ischemic brain injury and impairing post-stroke recovery. Our previous study suggested that recombinant human fibroblast growth factor (rFGF) 21 might be a potent therapeutic targeting multiple aspects of pathophysiology in T2DM stroke. This study aims to evaluate the potential effects of rFGF21 on cerebrovascular remodeling after T2DM stroke. Permanent distal middle cerebral artery occlusion was performed in heterozygous non-diabetic db/ + and homozygous diabetic db/db mice. Daily rFGF21 administration was initiated 1 week after stroke induction and maintained for up to 2 weeks thereafter. Multiple markers associated with post-stroke recovery, including angiogenesis, oligodendrogenesis, white matter integrity, and neurogenesis, were assessed up to 3 weeks after stroke. Our results showed an impairment in post-stroke vascular remodeling under T2DM condition, reflected by the decreased expression of trophic factors in brain microvessels and impairments of angiogenesis. The defected cerebrovascular remodeling was accompanied by the decreased oligodendrogenesis and neurogenesis. However, delayed rFGF21 administration normalized post-stroke hyperglycemia and improved neurological outcomes, which may partially be via the promotion of pro-angiogenic trophic factor expression in brain microvessels and cerebrovascular remodeling. The better cerebrovascular remodeling may also contribute to oligodendrogenesis, white matter integrity, and neurogenesis after T2DM stroke. Therefore, delayed rFGF21 administration may improve neurological outcomes in T2DM stroke mice, at least in part by normalizing the metabolic abnormalities and promoting cerebrovascular remodeling and white matter repair.
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25
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Hernández IH, Villa-González M, Martín G, Soto M, Pérez-Álvarez MJ. Glial Cells as Therapeutic Approaches in Brain Ischemia-Reperfusion Injury. Cells 2021; 10:1639. [PMID: 34208834 PMCID: PMC8305833 DOI: 10.3390/cells10071639] [Citation(s) in RCA: 51] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2021] [Revised: 06/24/2021] [Accepted: 06/26/2021] [Indexed: 02/07/2023] Open
Abstract
Ischemic stroke is the second cause of mortality and the first cause of long-term disability constituting a serious socioeconomic burden worldwide. Approved treatments include thrombectomy and rtPA intravenous administration, which, despite their efficacy in some cases, are not suitable for a great proportion of patients. Glial cell-related therapies are progressively overcoming inefficient neuron-centered approaches in the preclinical phase. Exploiting the ability of microglia to naturally switch between detrimental and protective phenotypes represents a promising therapeutic treatment, in a similar way to what happens with astrocytes. However, the duality present in many of the roles of these cells upon ischemia poses a notorious difficulty in disentangling the precise pathways to target. Still, promoting M2/A2 microglia/astrocyte protective phenotypes and inhibiting M1/A1 neurotoxic profiles is globally rendering promising results in different in vivo models of stroke. On the other hand, described oligodendrogenesis after brain ischemia seems to be strictly beneficial, although these cells are the less studied players in the stroke paradigm and negative effects could be described for oligodendrocytes in the next years. Here, we review recent advances in understanding the precise role of mentioned glial cell types in the main pathological events of ischemic stroke, including inflammation, blood brain barrier integrity, excitotoxicity, reactive oxygen species management, metabolic support, and neurogenesis, among others, with a special attention to tested therapeutic approaches.
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Affiliation(s)
- Ivó H Hernández
- Genomic Instability Group, Spanish National Cancer Research Centre (CNIO), 28029 Madrid, Spain
- Center for Molecular Biology "Severo Ochoa" (CBMSO) UAM/CSIC, 28049 Madrid, Spain
- Networking Research Center on Neurodegenerative Diseases (CIBERNED), Instituto de Salud Carlos III, 28031 Madrid, Spain
| | - Mario Villa-González
- Center for Molecular Biology "Severo Ochoa" (CBMSO) UAM/CSIC, 28049 Madrid, Spain
- Departamento de Biología (Fisiología Animal), Facultad de Ciencias, Universidad Autónoma de Madrid, 28049 Madrid, Spain
| | - Gerardo Martín
- Departamento de Biología (Fisiología Animal), Facultad de Ciencias, Universidad Autónoma de Madrid, 28049 Madrid, Spain
| | - Manuel Soto
- Center for Molecular Biology "Severo Ochoa" (CBMSO) UAM/CSIC, 28049 Madrid, Spain
- Departamento de Biología Molecular, Facultad de Ciencias, Universidad Autónoma de Madrid, 28049 Madrid, Spain
| | - María José Pérez-Álvarez
- Center for Molecular Biology "Severo Ochoa" (CBMSO) UAM/CSIC, 28049 Madrid, Spain
- Departamento de Biología (Fisiología Animal), Facultad de Ciencias, Universidad Autónoma de Madrid, 28049 Madrid, Spain
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26
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Galichet C, Clayton RW, Lovell-Badge R. Novel Tools and Investigative Approaches for the Study of Oligodendrocyte Precursor Cells (NG2-Glia) in CNS Development and Disease. Front Cell Neurosci 2021; 15:673132. [PMID: 33994951 PMCID: PMC8116629 DOI: 10.3389/fncel.2021.673132] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2021] [Accepted: 04/07/2021] [Indexed: 12/11/2022] Open
Abstract
Oligodendrocyte progenitor cells (OPCs), also referred to as NG2-glia, are the most proliferative cell type in the adult central nervous system. While the primary role of OPCs is to serve as progenitors for oligodendrocytes, in recent years, it has become increasingly clear that OPCs fulfil a number of other functions. Indeed, independent of their role as stem cells, it is evident that OPCs can regulate the metabolic environment, directly interact with and modulate neuronal function, maintain the blood brain barrier (BBB) and regulate inflammation. In this review article, we discuss the state-of-the-art tools and investigative approaches being used to characterize the biology and function of OPCs. From functional genetic investigation to single cell sequencing and from lineage tracing to functional imaging, we discuss the important discoveries uncovered by these techniques, such as functional and spatial OPC heterogeneity, novel OPC marker genes, the interaction of OPCs with other cells types, and how OPCs integrate and respond to signals from neighboring cells. Finally, we review the use of in vitro assay to assess OPC functions. These methodologies promise to lead to ever greater understanding of this enigmatic cell type, which in turn will shed light on the pathogenesis and potential treatment strategies for a number of diseases, such as multiple sclerosis (MS) and gliomas.
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Affiliation(s)
- Christophe Galichet
- Laboratory of Stem Cell Biology and Developmental Genetics, The Francis Crick Institute, London, United Kingdom
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27
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Cellular Mechanisms Participating in Brain Repair of Adult Zebrafish and Mammals after Injury. Cells 2021; 10:cells10020391. [PMID: 33672842 PMCID: PMC7917790 DOI: 10.3390/cells10020391] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Revised: 01/28/2021] [Accepted: 02/05/2021] [Indexed: 12/12/2022] Open
Abstract
Adult neurogenesis is an evolutionary conserved process occurring in all vertebrates. However, striking differences are observed between the taxa, considering the number of neurogenic niches, the neural stem cell (NSC) identity, and brain plasticity under constitutive and injury-induced conditions. Zebrafish has become a popular model for the investigation of the molecular and cellular mechanisms involved in adult neurogenesis. Compared to mammals, the adult zebrafish displays a high number of neurogenic niches distributed throughout the brain. Furthermore, it exhibits a strong regenerative capacity without scar formation or any obvious disabilities. In this review, we will first discuss the similarities and differences regarding (i) the distribution of neurogenic niches in the brain of adult zebrafish and mammals (mainly mouse) and (ii) the nature of the neural stem cells within the main telencephalic niches. In the second part, we will describe the cascade of cellular events occurring after telencephalic injury in zebrafish and mouse. Our study clearly shows that most early events happening right after the brain injury are shared between zebrafish and mouse including cell death, microglia, and oligodendrocyte recruitment, as well as injury-induced neurogenesis. In mammals, one of the consequences following an injury is the formation of a glial scar that is persistent. This is not the case in zebrafish, which may be one of the main reasons that zebrafish display a higher regenerative capacity.
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28
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Nguyen QL, Okuno N, Hamashima T, Dang ST, Fujikawa M, Ishii Y, Enomoto A, Maki T, Nguyen HN, Nguyen VT, Fujimori T, Mori H, Andrae J, Betsholtz C, Takao K, Yamamoto S, Sasahara M. Vascular PDGFR-alpha protects against BBB dysfunction after stroke in mice. Angiogenesis 2021; 24:35-46. [PMID: 32918673 DOI: 10.1007/s10456-020-09742-w] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Accepted: 09/01/2020] [Indexed: 02/06/2023]
Abstract
Blood-brain barrier (BBB) dysfunction underlies the pathogenesis of many neurological diseases. Platelet-derived growth factor receptor-alpha (PDGFRα) induces hemorrhagic transformation (HT) downstream of tissue plasminogen activator in thrombolytic therapy of acute stroke. Thus, PDGFs are attractive therapeutic targets for BBB dysfunction. In the present study, we examined the role of PDGF signaling in the process of tissue remodeling after middle cerebral arterial occlusion (MCAO) in mice. Firstly, we found that imatinib increased lesion size after permanent MCAO in wild-type mice. Moreover, imatinib-induced HT only when administrated in the subacute phase of MCAO, but not in the acute phase. Secondly, we generated genetically mutated mice (C-KO mice) that showed decreased expression of perivascular PDGFRα. Additionally, transient MCAO experiments were performed in these mice. We found that the ischemic lesion size was not affected; however, the recruitment of PDGFRα/type I collagen-expressing perivascular cells was significantly downregulated, and HT and IgG leakage was augmented only in the subacute phase of stroke in C-KO mice. In both experiments, we found that the expression of tight junction proteins and PDGFRβ-expressing pericyte coverage was not significantly affected in imatinib-treated mice and in C-KO mice. The specific implication of PDGFRα signaling was suggestive of protective effects against BBB dysfunction during the subacute phase of stroke. Vascular TGF-β1 expression was downregulated in both imatinib-treated and C-KO mice, along with sustained levels of MMP9. Therefore, PDGFRα effects may be mediated by TGF-β1 which exerts potent protective effects in the BBB.
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Affiliation(s)
- Quang Linh Nguyen
- Department of Pathology, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, Toyama, 930-0194, Japan
- Stroke Center, The 108 Military Central Hospital, Ha Noi, Vietnam
| | - Noriko Okuno
- Department of Pathology, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, Toyama, 930-0194, Japan
| | - Takeru Hamashima
- Department of Pathology, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, Toyama, 930-0194, Japan
| | - Son Tung Dang
- Department of Pathology, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, Toyama, 930-0194, Japan
| | - Miwa Fujikawa
- Department of Pathology, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, Toyama, 930-0194, Japan
| | - Yoko Ishii
- Department of Health Science, Faculty of Health and Human Development, The University of Nagano, Nagano, Japan
| | - Atsushi Enomoto
- Department of Pathology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Takakuni Maki
- Department of Neurology, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | | | - Van Tuyen Nguyen
- Stroke Center, The 108 Military Central Hospital, Ha Noi, Vietnam
| | - Toshihiko Fujimori
- Division of Embryology, National Institute for Basic Biology, Okazaki, Japan
| | - Hisashi Mori
- Department of Molecular Neuroscience, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, Toyama, Japan
| | - Johanna Andrae
- Department of Immunology, Genetics and Pathology, Rudbeck Laboratory, Uppsala University, Uppsala, Sweden
| | - Christer Betsholtz
- Department of Immunology, Genetics and Pathology, Rudbeck Laboratory, Uppsala University, Uppsala, Sweden
- Integrated Cardio Metabolic Center, Karolinska Institute, Huddinge, Sweden
| | - Keizo Takao
- Division of Animal Resources and Development, Life Science Research Center, University of Toyama, Toyama, Japan
| | - Seiji Yamamoto
- Department of Pathology, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, Toyama, 930-0194, Japan.
| | - Masakiyo Sasahara
- Department of Pathology, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, Toyama, 930-0194, Japan.
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29
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Villa Gonzalez M, Pérez-Álvarez MJ. A 3R-Tau-mediated mechanism in oligodendrocytes: could it be the key for neuroprotection after stroke? Neural Regen Res 2021; 16:2401-2402. [PMID: 33907017 PMCID: PMC8374573 DOI: 10.4103/1673-5374.313027] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Affiliation(s)
- Mario Villa Gonzalez
- Departamento de Biología (Fisiología Animal), Facultad de Ciencias, Universidad Autónoma de Madrid; Centro de Biología Molecular "Severo Ochoa", Departamento de Neuropatología Molecular CSIC-UAM, Madrid, Spain
| | - Maria José Pérez-Álvarez
- Departamento de Biología (Fisiología Animal), Facultad de Ciencias, Universidad Autónoma de Madrid; Centro de Biología Molecular "Severo Ochoa", Departamento de Neuropatología Molecular CSIC-UAM; Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), Madrid, Spain
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30
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Chavali M, Ulloa-Navas MJ, Pérez-Borredá P, Garcia-Verdugo JM, McQuillen PS, Huang EJ, Rowitch DH. Wnt-Dependent Oligodendroglial-Endothelial Interactions Regulate White Matter Vascularization and Attenuate Injury. Neuron 2020; 108:1130-1145.e5. [PMID: 33086038 DOI: 10.1016/j.neuron.2020.09.033] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2020] [Revised: 08/26/2020] [Accepted: 09/23/2020] [Indexed: 12/13/2022]
Abstract
Recent studies have indicated oligodendroglial-vascular crosstalk during brain development, but the underlying mechanisms are incompletely understood. We report that oligodendrocyte precursor cells (OPCs) contact sprouting endothelial tip cells in mouse, ferret, and human neonatal white matter. Using transgenic mice, we show that increased or decreased OPC density results in cognate changes in white matter vascular investment. Hypoxia induced increases in OPC numbers, vessel density and endothelial cell expression of the Wnt pathway targets Apcdd1 and Axin2 in white matter, suggesting paracrine OPC-endothelial signaling. Conditional knockout of OPC Wntless resulted in diminished white matter vascular growth in normoxia, whereas loss of Wnt7a/b function blunted the angiogenic response to hypoxia, resulting in severe white matter damage. These findings indicate that OPC-endothelial cell interactions regulate neonatal white matter vascular development in a Wnt-dependent manner and further suggest this mechanism is important in attenuating hypoxic injury.
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Affiliation(s)
- Manideep Chavali
- Department of Pediatrics, UCSF, San Francisco, CA, USA; Eli and Edythe Broad Institute for Stem Cell Research and Regeneration Medicine, UCSF, San Francisco, CA, USA; New Born Brain Research Institute, UCSF, San Francisco, CA, USA
| | - Maria José Ulloa-Navas
- Laboratorio de Neurobiología Comparada, Instituto Cavanilles, Universidad de Valencia, CIBERNED, TERCEL, Paterna 46980, Spain
| | - Pedro Pérez-Borredá
- Laboratorio de Neurobiología Comparada, Instituto Cavanilles, Universidad de Valencia, CIBERNED, TERCEL, Paterna 46980, Spain
| | - Jose Manuel Garcia-Verdugo
- Laboratorio de Neurobiología Comparada, Instituto Cavanilles, Universidad de Valencia, CIBERNED, TERCEL, Paterna 46980, Spain
| | | | - Eric J Huang
- Department of Pathology, UCSF, San Francisco, CA, USA
| | - David H Rowitch
- Department of Pediatrics, UCSF, San Francisco, CA, USA; Eli and Edythe Broad Institute for Stem Cell Research and Regeneration Medicine, UCSF, San Francisco, CA, USA; New Born Brain Research Institute, UCSF, San Francisco, CA, USA; Department of Paediatrics and Wellcome-MRC Cambridge Stem Cell Institute, University of Cambridge, Hills Road, Cambridge, UK.
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31
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Abstract
The central nervous system is simply divided into two distinct anatomical regions based on the color of tissues, i.e. the gray and white matter. The gray matter is composed of neuronal cell bodies, glial cells, dendrites, immune cells, and the vascular system, while the white matter is composed of concentrated myelinated axonal fibers extending from neuronal soma and glial cells, such as oligodendrocyte precursor cells (OPCs), oligodendrocytes, astrocytes, and microglia. As neuronal cell bodies are located in the gray matter, great attention has been focused mainly on the gray matter regarding the understanding of the functions of the brain throughout the neurophysiological areas, leading to a scenario in which the function of the white matter is relatively underestimated or has not received much attention. However, increasing evidence shows that the white matter plays highly significant and pivotal functions in the brain based on the fact that its abnormalities are associated with numerous neurological diseases. In this review, we will broadly discuss the pathways and functions of myelination, which is one of the main processes that modulate the functions of the white matter, as well as the manner in which its abnormalities are related to neurological disorders.
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32
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Oligodendrocyte Physiology and Pathology Function. Cells 2020; 9:cells9092078. [PMID: 32932835 PMCID: PMC7563511 DOI: 10.3390/cells9092078] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Accepted: 09/09/2020] [Indexed: 12/13/2022] Open
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33
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Yasuda K, Maki T, Kinoshita H, Kaji S, Toyokawa M, Nishigori R, Kinoshita Y, Ono Y, Kinoshita A, Takahashi R. Sex-specific differences in transcriptomic profiles and cellular characteristics of oligodendrocyte precursor cells. Stem Cell Res 2020; 46:101866. [PMID: 32563975 DOI: 10.1016/j.scr.2020.101866] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/27/2019] [Revised: 03/21/2020] [Accepted: 05/12/2020] [Indexed: 12/30/2022] Open
Abstract
The susceptibility to neurological and psychiatric disorders reveals sexual dimorphism in the structure and function of human brains. Recent evidence has also demonstrated the sex-related differences in cellular components of the brain, including neurons, microglia, astrocytes, and endothelial cells. Oligodendrocyte precursor cells (OPCs) regulate the neuronal system in various ways and play crucial roles in brain homeostasis beyond their well-known role as a reservoir for mature oligodendrocytes. Although recent studies have shown regional diversities and heterogeneities of OPCs, sex-related differences in OPCs are largely unknown. Here, we revealed transcriptomic differences in OPCs isolated from male and female neonatal rat brains. Furthermore, we demonstrated sex-dependent differences in OPCs regarding proliferation, migration, differentiation, tolerance against ischemic stress, energy metabolism, and the ability to regulate the blood-brain barrier integrity.
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Affiliation(s)
- Ken Yasuda
- Department of Neurology, Graduate School of Medicine, Kyoto University, 54 Shogoin-Kawahara-cho, Sakyo-ku, Kyoto 606-8397, Japan
| | - Takakuni Maki
- Department of Neurology, Graduate School of Medicine, Kyoto University, 54 Shogoin-Kawahara-cho, Sakyo-ku, Kyoto 606-8397, Japan.
| | - Hisanori Kinoshita
- Department of Neurology, Graduate School of Medicine, Kyoto University, 54 Shogoin-Kawahara-cho, Sakyo-ku, Kyoto 606-8397, Japan
| | - Seiji Kaji
- Department of Neurology, Graduate School of Medicine, Kyoto University, 54 Shogoin-Kawahara-cho, Sakyo-ku, Kyoto 606-8397, Japan
| | - Masaru Toyokawa
- Human Health Sciences, Graduate School of Medicine, Kyoto University, 53 Shogoin-kawahara-cho, Sakyo-ku, Kyoto 606-8507, Japan
| | - Ryusei Nishigori
- Department of Neurology, Graduate School of Medicine, Kyoto University, 54 Shogoin-Kawahara-cho, Sakyo-ku, Kyoto 606-8397, Japan
| | - Yusuke Kinoshita
- Department of Developmental Neurobiology, KAN Research Institute, Inc., Kobe, Hyogo 650-0047, Japan
| | - Yuichi Ono
- Department of Developmental Neurobiology, KAN Research Institute, Inc., Kobe, Hyogo 650-0047, Japan
| | - Ayae Kinoshita
- Human Health Sciences, Graduate School of Medicine, Kyoto University, 53 Shogoin-kawahara-cho, Sakyo-ku, Kyoto 606-8507, Japan
| | - Ryosuke Takahashi
- Department of Neurology, Graduate School of Medicine, Kyoto University, 54 Shogoin-Kawahara-cho, Sakyo-ku, Kyoto 606-8397, Japan
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34
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Uemura MT, Maki T, Ihara M, Lee VMY, Trojanowski JQ. Brain Microvascular Pericytes in Vascular Cognitive Impairment and Dementia. Front Aging Neurosci 2020; 12:80. [PMID: 32317958 PMCID: PMC7171590 DOI: 10.3389/fnagi.2020.00080] [Citation(s) in RCA: 138] [Impact Index Per Article: 34.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2019] [Accepted: 03/04/2020] [Indexed: 12/19/2022] Open
Abstract
Pericytes are unique, multi-functional mural cells localized at the abluminal side of the perivascular space in microvessels. Originally discovered in 19th century, pericytes had drawn less attention until decades ago mainly due to lack of specific markers. Recently, however, a growing body of evidence has revealed that pericytes play various important roles: development and maintenance of blood–brain barrier (BBB), regulation of the neurovascular system (e.g., vascular stability, vessel formation, cerebral blood flow, etc.), trafficking of inflammatory cells, clearance of toxic waste products from the brain, and acquisition of stem cell-like properties. In the neurovascular unit, pericytes perform these functions through coordinated crosstalk with neighboring cells including endothelial, glial, and neuronal cells. Dysfunction of pericytes contribute to a wide variety of diseases that lead to cognitive impairments such as cerebral small vessel disease (SVD), acute stroke, Alzheimer’s disease (AD), and other neurological disorders. For instance, in SVDs, pericyte degeneration leads to microvessel instability and demyelination while in stroke, pericyte constriction after ischemia causes a no-reflow phenomenon in brain capillaries. In AD, which shares some common risk factors with vascular dementia, reduction in pericyte coverage and subsequent microvascular impairments are observed in association with white matter attenuation and contribute to impaired cognition. Pericyte loss causes BBB-breakdown, which stagnates amyloid β clearance and the leakage of neurotoxic molecules into the brain parenchyma. In this review, we first summarize the characteristics of brain microvessel pericytes, and their roles in the central nervous system. Then, we focus on how dysfunctional pericytes contribute to the pathogenesis of vascular cognitive impairment including cerebral ‘small vessel’ and ‘large vessel’ diseases, as well as AD. Finally, we discuss therapeutic implications for these disorders by targeting pericytes.
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Affiliation(s)
- Maiko T Uemura
- Institute on Aging and Center for Neurodegenerative Disease Research, Department of Pathology and Laboratory Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, United States.,JSPS Overseas Research Fellowship Program, Japan Society for the Promotion of Science, Tokyo, Japan
| | - Takakuni Maki
- Department of Neurology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Masafumi Ihara
- Department of Neurology, National Cerebral and Cardiovascular Center, Osaka, Japan
| | - Virginia M Y Lee
- Institute on Aging and Center for Neurodegenerative Disease Research, Department of Pathology and Laboratory Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, United States
| | - John Q Trojanowski
- Institute on Aging and Center for Neurodegenerative Disease Research, Department of Pathology and Laboratory Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, United States
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35
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Du X, Zhang Z, Zhou H, Zhou J. Differential Modulators of NG2-Glia Differentiation into Neurons and Glia and Their Crosstalk. Cell Mol Neurobiol 2020; 41:1-15. [PMID: 32285247 DOI: 10.1007/s10571-020-00843-0] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2020] [Accepted: 04/06/2020] [Indexed: 02/08/2023]
Abstract
As the fifth main cell population in the brain, NG2-glia are also known as oligodendrocyte precursor cells. NG2-glia express receptors and ion channels for fast modulation of neuronal activities and signaling with neuronal synapses, which are of functional significance in both physiological and pathological states. NG2-glia also participate in fast signaling with peripheral neurons via direct synaptic contacts in the brain. These distinctive glia have the unique capability of proliferating and differentiating into oligodendrocytes, which are critical for axonal myelination in the early developing brain. In neurodegenerative diseases, NG2-glia play an important role and undergo morphological modification, adapt the expression of their membrane receptors and ion channels, and display gene-modulated cell reprogramming and excitotoxicity-caused cell death. These modifications directly and indirectly influence populations of neurons and other glial cells. NG2-glia regulate their action and dynamics in response to neuronal behavior and disease, indicating a critical function to preserve and remodel myelin in physiological states and to repair it in pathological states. Here, we review in detail the differential modulators of NG2-glia into neurons and astrocytes, as well as interactions of NG2-glia with neurons, astrocytes, and microglia. We will also summarize a future potential exploitation of NG2-glia.
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Affiliation(s)
- Xiaohuang Du
- Department of Scientific Research, Army Medical University, Chongqing, 400037, China
| | - Zuo Zhang
- National Drug Clinical Trial Institution, Second Affiliated Hospital, Army Medical University, Chongqing, 400037, China
| | - Hongli Zhou
- National Drug Clinical Trial Institution, Second Affiliated Hospital, Army Medical University, Chongqing, 400037, China
| | - Jiyin Zhou
- National Drug Clinical Trial Institution, Second Affiliated Hospital, Army Medical University, Chongqing, 400037, China.
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36
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37
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Lv MH, Li S, Jiang YJ, Zhang W. The Sphkl/SlP pathway regulates angiogenesis via NOS/NO synthesis following cerebral ischemia-reperfusion. CNS Neurosci Ther 2019; 26:538-548. [PMID: 31814336 PMCID: PMC7163582 DOI: 10.1111/cns.13275] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2019] [Revised: 11/14/2019] [Accepted: 11/19/2019] [Indexed: 12/28/2022] Open
Abstract
Aims Sphingosine kinase 1 (Sphk1) and the signaling molecule sphingosine‐1‐phosphate (S1P) are known to be key regulators of a variety of important biological processes, such as neovascularization. Nitric oxide (NO) is also known to play a role in vasoactive properties, whether Sphk1/S1P signaling is able to alter angiogenesis in the context of cerebral ischemia‐reperfusion injury (IRI), and whether such activity is linked with NO production, however, remains uncertain. Methods We used immunofluorescence to detect the expression of Sphk1 and NOS in cerebral epithelial cells (EC) after IR or oxygen‐glucose deprivation (OGDR). Western blotting was used to detect the Sphk1 and NOS protein levels in brain tissues or HBMECs. Adenovirus transfection was used to inhibit Sphk1 and NOS. An NO kit was used to detect NO contents in brain tissues and epithelial cells. Tube formation assays were conducted to measure angiogenesis. Results We determined that EC used in a model of cerebral IRI expressed Sphk1, and that inhibiting this expression led to decreased expression of two isoforms of NO synthase (eNOS and iNOS), as well as to decrease neovascularization density and NO production following injury. In HBMECs, knocking down Sphk1 markedly reduced NO production owing to reduced eNOS activity, and inhibiting eNOS directly similarly decreased NO production in a manner which could be reversed via exogenously treating cells with S1P. We further found that knocking down Sphk1 reduced HBMEC eNOS expression, in addition to decreasing the adhesion, migration, and tube formation abilities of these cells under OGDR conditions. Conclusions Based on these results, we therefore postulate that Sphk1/S1P signaling is able to mediate angiogenesis following cerebral IRI via the regulation of eNOS activity and NO production. As such, targeting these pathways may potentially represent a novel means of improving patient prognosis in those suffering from cerebral IRI.
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Affiliation(s)
- Man-Hua Lv
- Department of Neurology, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Shi Li
- Department of Neurology, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yong-Jia Jiang
- Department of Neurology, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Wei Zhang
- Department of Neurology, The First Affiliated Hospital of Harbin Medical University, Harbin, China
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38
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Ohtomo R, Arai K. Recent updates on mechanisms of cell-cell interaction in oligodendrocyte regeneration after white matter injury. Neurosci Lett 2019; 715:134650. [PMID: 31770564 DOI: 10.1016/j.neulet.2019.134650] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2019] [Revised: 11/09/2019] [Accepted: 11/22/2019] [Indexed: 02/06/2023]
Abstract
In most cases, neurological disorders that involve injuries of the cerebral white matter are accompanied by demyelination and oligodendrocyte damage. Promotion of remyelination process through the maturation of oligodendrocyte precursor cells (OPCs) is therefore proposed to contribute to the development of novel therapeutic approaches that could protect and restore the white matter from central nervous system diseases. However, efficient remyelination in the white matter could not be accomplished if various neighboring cell types are not involved to react with oligodendrocyte lineage cells in this process. Hence, profound understanding of cell-cell interaction between oligodendrocyte lineage cells and other cellular components is an essential step to achieve a breakthrough for the cure of white matter injury. In this mini-review, we provide recent updates on non-cell autonomous mechanisms of oligodendrocyte regeneration by introducing recent studies (e.g. published either in 2018 or 2019) that focus on crosstalk between oligodendrocyte lineage cells and the other constituents of the white matter.
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Affiliation(s)
- Ryo Ohtomo
- Neuroprotection Research Laboratory, Departments of Radiology and Neurology, Massachusetts General Hospital and Harvard Medical School, Charlestown, MA, 02129, USA; Department of Neurology, The University of Tokyo Graduate School of Medicine, Tokyo, Japan.
| | - Ken Arai
- Neuroprotection Research Laboratory, Departments of Radiology and Neurology, Massachusetts General Hospital and Harvard Medical School, Charlestown, MA, 02129, USA.
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39
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Xue J, Yu Y, Zhang X, Zhang C, Zhao Y, Liu B, Zhang L, Wang L, Chen R, Gao X, Jiao P, Song G, Jiang XC, Qin S. Sphingomyelin Synthase 2 Inhibition Ameliorates Cerebral Ischemic Reperfusion Injury Through Reducing the Recruitment of Toll-Like Receptor 4 to Lipid Rafts. J Am Heart Assoc 2019; 8:e012885. [PMID: 31718447 PMCID: PMC6915272 DOI: 10.1161/jaha.119.012885] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Background Inflammation is recognized as an important contributor of ischemia/reperfusion (I/R) damage after ischemic stroke. Sphingomyelin synthase 2 (SMS2), the key enzyme for the biosynthesis of sphingomyelin, can function as a critical mediator of inflammation. In the present study, we investigated the role of SMS2 in a mouse model of cerebral I/R. Methods and Results Cerebral I/R was induced by 60‐minute transient middle cerebral artery occlusion in SMS2 knockout (SMS2‐/‐) mice and wild‐type mice. Brain injury was determined by neurological deficits and infarct volume at 24 and 72 hours after transient middle cerebral artery occlusion. Microglia activation and inflammatory factors were detected by immunofluorescence staining, flow cytometry, western blot, and RT‐PCR. SMS2 deficiency significantly improved neurological function and minimized infarct volume at 72 hours after transient middle cerebral artery occlusion. The neuroprotective effects of SMS2 deficiency were associated with (1) suppression of microglia activation through Toll‐like receptor 4/nuclear factor kappa‐light‐chain‐enhancer of activated B cells pathway and (2) downregulation of the level of galactin‐3 and other proinflammatory cytokines. The mechanisms underlying the beneficial effects of SMS2 deficiency may include altering sphingomyelin components in lipid raft fractions, thus impairing the recruitment of Toll‐like receptor 4 to lipid rafts and subsequently reducing Toll‐like receptor 4/myeloid differentiation factor 2 complex formation on the surface of microglia. Conclusions SMS2 deficiency ameliorated inflammatory injury after cerebral I/R in mice, and SMS2 may be a key modulator of Toll‐like receptor 4/nuclear factor kappa‐light‐chain‐enhancer of activated B cells activation by disturbing the membrane component homeostasis during cerebral I/R.
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Affiliation(s)
- Jing Xue
- Department of Neurology Second Hospital of Hebei Medical University Shijiazhuang China.,Hebei Collaborative Innovation Center for Cardio-cerebrovascular Disease and Hebei Key Laboratory of Vascular Homeostasis Shijiazhuang China
| | - Yang Yu
- Key Laboratory of Atherosclerosis in Universities of Shandong and Institute of Atherosclerosis Shandong First Medical University & Shandong Academy of Medical Sciences Taian China.,Hebei Collaborative Innovation Center for Cardio-cerebrovascular Disease and Hebei Key Laboratory of Vascular Homeostasis Shijiazhuang China
| | - Xiangjian Zhang
- Department of Neurology Second Hospital of Hebei Medical University Shijiazhuang China.,Hebei Collaborative Innovation Center for Cardio-cerebrovascular Disease and Hebei Key Laboratory of Vascular Homeostasis Shijiazhuang China
| | - Cong Zhang
- Department of Neurology Second Hospital of Hebei Medical University Shijiazhuang China.,Hebei Collaborative Innovation Center for Cardio-cerebrovascular Disease and Hebei Key Laboratory of Vascular Homeostasis Shijiazhuang China
| | - Yanan Zhao
- Key Laboratory of Atherosclerosis in Universities of Shandong and Institute of Atherosclerosis Shandong First Medical University & Shandong Academy of Medical Sciences Taian China.,Hebei Collaborative Innovation Center for Cardio-cerebrovascular Disease and Hebei Key Laboratory of Vascular Homeostasis Shijiazhuang China
| | - Boyan Liu
- Key Laboratory of Atherosclerosis in Universities of Shandong and Institute of Atherosclerosis Shandong First Medical University & Shandong Academy of Medical Sciences Taian China.,Hebei Collaborative Innovation Center for Cardio-cerebrovascular Disease and Hebei Key Laboratory of Vascular Homeostasis Shijiazhuang China
| | - Lan Zhang
- Department of Neurology Second Hospital of Hebei Medical University Shijiazhuang China.,Hebei Collaborative Innovation Center for Cardio-cerebrovascular Disease and Hebei Key Laboratory of Vascular Homeostasis Shijiazhuang China
| | - Lina Wang
- Department of Neurology Second Hospital of Hebei Medical University Shijiazhuang China.,Hebei Collaborative Innovation Center for Cardio-cerebrovascular Disease and Hebei Key Laboratory of Vascular Homeostasis Shijiazhuang China
| | - Rong Chen
- Department of Neurology Second Hospital of Hebei Medical University Shijiazhuang China.,Hebei Collaborative Innovation Center for Cardio-cerebrovascular Disease and Hebei Key Laboratory of Vascular Homeostasis Shijiazhuang China
| | - Xuan Gao
- Department of Neurology Second Hospital of Hebei Medical University Shijiazhuang China.,Hebei Collaborative Innovation Center for Cardio-cerebrovascular Disease and Hebei Key Laboratory of Vascular Homeostasis Shijiazhuang China
| | - Peng Jiao
- Key Laboratory of Atherosclerosis in Universities of Shandong and Institute of Atherosclerosis Shandong First Medical University & Shandong Academy of Medical Sciences Taian China.,Hebei Collaborative Innovation Center for Cardio-cerebrovascular Disease and Hebei Key Laboratory of Vascular Homeostasis Shijiazhuang China
| | - Guohua Song
- Key Laboratory of Atherosclerosis in Universities of Shandong and Institute of Atherosclerosis Shandong First Medical University & Shandong Academy of Medical Sciences Taian China.,Hebei Collaborative Innovation Center for Cardio-cerebrovascular Disease and Hebei Key Laboratory of Vascular Homeostasis Shijiazhuang China
| | - Xian-Cheng Jiang
- Department of Anatomy and Cell Biology SUNY Downstate Medical Center Brooklyn NY
| | - Shucun Qin
- Key Laboratory of Atherosclerosis in Universities of Shandong and Institute of Atherosclerosis Shandong First Medical University & Shandong Academy of Medical Sciences Taian China.,Hebei Collaborative Innovation Center for Cardio-cerebrovascular Disease and Hebei Key Laboratory of Vascular Homeostasis Shijiazhuang China
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40
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Yang H, Qin X, Wang H, Zhao X, Liu Y, Wo HT, Liu C, Nishiga M, Chen H, Ge J, Sayed N, Abilez OJ, Ding D, Heilshorn SC, Li K. An in Vivo miRNA Delivery System for Restoring Infarcted Myocardium. ACS NANO 2019; 13:9880-9894. [PMID: 31149806 PMCID: PMC7930012 DOI: 10.1021/acsnano.9b03343] [Citation(s) in RCA: 80] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
A major challenge in myocardial infarction (MI)-related heart failure treatment using microRNA is the efficient and sustainable delivery of miRNAs into myocardium to achieve functional improvement through stimulation of intrinsic myocardial restoration. In this study, we established an in vivo delivery system using polymeric nanoparticles to carry miRNA (miNPs) for localized delivery within a shear-thinning injectable hydrogel. The miNPs triggered proliferation of human embryonic stem cell-derived cardiomyocytes and endothelial cells (hESC-CMs and hESC-ECs) and promoted angiogenesis in hypoxic conditions, showing significantly lower cytotoxicity than Lipofectamine. Furthermore, one injected dose of hydrogel/miNP in MI rats demonstrated significantly improved cardiac functions: increased ejection fraction from 45% to 64%, reduced scar size from 20% to 10%, and doubled capillary density in the border zone compared to the control group at 4 weeks. As such, our results indicate that this injectable hydrogel/miNP composite can deliver miRNA to restore injured myocardium efficiently and safely.
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Affiliation(s)
- Huaxiao Yang
- Stanford Cardiovascular Institute, Stanford University School of Medicine, Stanford, California 94305, United States
- Corresponding Authors.,
| | - Xulei Qin
- Stanford Cardiovascular Institute, Stanford University School of Medicine, Stanford, California 94305, United States
| | - Huiyuan Wang
- Department of Materials Science and Engineering, Stanford University, Stanford, California 94305, United States
| | - Xin Zhao
- Stanford Cardiovascular Institute, Stanford University School of Medicine, Stanford, California 94305, United States
| | - Yonggang Liu
- Stanford Cardiovascular Institute, Stanford University School of Medicine, Stanford, California 94305, United States
| | - Hung-Ta Wo
- Stanford Cardiovascular Institute, Stanford University School of Medicine, Stanford, California 94305, United States
| | - Chun Liu
- Stanford Cardiovascular Institute, Stanford University School of Medicine, Stanford, California 94305, United States
| | - Masataka Nishiga
- Stanford Cardiovascular Institute, Stanford University School of Medicine, Stanford, California 94305, United States
| | - Haodong Chen
- Stanford Cardiovascular Institute, Stanford University School of Medicine, Stanford, California 94305, United States
| | - Jing Ge
- Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen, Guangdong 518055, China
| | - Nazish Sayed
- Stanford Cardiovascular Institute, Stanford University School of Medicine, Stanford, California 94305, United States
| | - Oscar J. Abilez
- Stanford Cardiovascular Institute, Stanford University School of Medicine, Stanford, California 94305, United States
| | - Dan Ding
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, Nankai University, Tianjin 300071, China
| | - Sarah C. Heilshorn
- Department of Materials Science and Engineering, Stanford University, Stanford, California 94305, United States
| | - Kai Li
- Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen, Guangdong 518055, China
- Department of Radiology, Stanford University School of Medicine, Stanford, California 94305, United States
- Corresponding Authors.,
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41
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Kishida N, Maki T, Takagi Y, Yasuda K, Kinoshita H, Ayaki T, Noro T, Kinoshita Y, Ono Y, Kataoka H, Yoshida K, Lo EH, Arai K, Miyamoto S, Takahashi R. Role of Perivascular Oligodendrocyte Precursor Cells in Angiogenesis After Brain Ischemia. J Am Heart Assoc 2019; 8:e011824. [PMID: 31020902 PMCID: PMC6512138 DOI: 10.1161/jaha.118.011824] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/06/2019] [Accepted: 03/21/2019] [Indexed: 02/06/2023]
Abstract
Background Oligodendrocyte precursor cells ( OPC s) regulate neuronal, glial, and vascular systems in diverse ways and display phenotypic heterogeneity beyond their established role as a reservoir for mature oligodendrocytes. However, the detailed phenotypic changes of OPC s after cerebral ischemia remain largely unknown. Here, we aimed to investigate the roles of reactive OPC s in the ischemic brain. Methods and Results The behavior of OPC s was evaluated in a mouse model of ischemic stroke produced by transient middle cerebral artery occlusion in vivo. For in vitro experiments, the phenotypic change of OPC s after oxygen glucose derivation was examined using a primary rat OPC culture. Furthermore, the therapeutic potential of hypoxic OPC s was evaluated in a mouse model of middle cerebral artery occlusion in vivo. Perivascular OPC s in the cerebral cortex were increased alongside poststroke angiogenesis in a mouse model of middle cerebral artery occlusion. In vitro RNA -seq analysis revealed that primary cultured OPC s increased the gene expression of numerous pro-angiogenic factors after oxygen glucose derivation. Hypoxic OPC s secreted a greater amount of pro-angiogenic factors, such as vascular endothelial growth factor and angiopoietin-1, compared with normoxic OPC s. Hypoxic OPC -derived conditioned media increased the viability and tube formation of endothelial cells. In vivo studies also demonstrated that 5 consecutive daily treatments with hypoxic OPC -conditioned media, beginning 2 days after middle cerebral artery occlusion, facilitated poststroke angiogenesis, alleviated infarct volume, and improved functional disabilities. Conclusions Following cerebral ischemia, the phenotype of OPC s in the cerebral cortex shifts from the parenchymal subtype to the perivascular subtype, which can promote angiogenesis. The optimal use of hypoxic OPC s secretome would provide a novel therapeutic option for stroke.
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MESH Headings
- Angiogenic Proteins/genetics
- Angiogenic Proteins/metabolism
- Animals
- Behavior, Animal
- Brain/blood supply
- Cell Hypoxia
- Cells, Cultured
- Culture Media, Conditioned/metabolism
- Disease Models, Animal
- Endothelial Cells/metabolism
- Endothelial Cells/pathology
- Infarction, Middle Cerebral Artery/metabolism
- Infarction, Middle Cerebral Artery/pathology
- Infarction, Middle Cerebral Artery/physiopathology
- Infarction, Middle Cerebral Artery/psychology
- Male
- Mice, Inbred C57BL
- Motor Activity
- Neovascularization, Physiologic
- Oligodendroglia/metabolism
- Oligodendroglia/pathology
- Paracrine Communication
- Phenotype
- Rats, Sprague-Dawley
- Recovery of Function
- Signal Transduction
- Stem Cells/metabolism
- Stem Cells/pathology
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Affiliation(s)
- Natsue Kishida
- Department of NeurologyGraduate School of MedicineKyoto UniversityKyotoJapan
- Department of NeurosurgeryGraduate School of MedicineKyoto UniversityKyotoJapan
| | - Takakuni Maki
- Department of NeurologyGraduate School of MedicineKyoto UniversityKyotoJapan
| | - Yasushi Takagi
- Department of NeurosurgeryGraduate School of MedicineKyoto UniversityKyotoJapan
- Department of NeurosurgeryGraduate School of MedicineTokushima UniversityTokushimaJapan
| | - Ken Yasuda
- Department of NeurologyGraduate School of MedicineKyoto UniversityKyotoJapan
| | - Hisanori Kinoshita
- Department of NeurologyGraduate School of MedicineKyoto UniversityKyotoJapan
| | - Takashi Ayaki
- Department of NeurologyGraduate School of MedicineKyoto UniversityKyotoJapan
| | - Takayuki Noro
- Department of NeurologyGraduate School of MedicineKyoto UniversityKyotoJapan
| | - Yusuke Kinoshita
- Department of Developmental NeurobiologyKAN Research Institute, Inc.KobeJapan
| | - Yuichi Ono
- Department of Developmental NeurobiologyKAN Research Institute, Inc.KobeJapan
| | - Hiroharu Kataoka
- Department of NeurosurgeryGraduate School of MedicineKyoto UniversityKyotoJapan
| | - Kazumichi Yoshida
- Department of NeurosurgeryGraduate School of MedicineKyoto UniversityKyotoJapan
| | - Eng H. Lo
- Departments of Radiology and NeurologyMassachusetts General Hospital and Harvard Medical SchoolCharlestownMassachusettsUSA
| | - Ken Arai
- Departments of Radiology and NeurologyMassachusetts General Hospital and Harvard Medical SchoolCharlestownMassachusettsUSA
| | - Susumu Miyamoto
- Department of NeurosurgeryGraduate School of MedicineKyoto UniversityKyotoJapan
| | - Ryosuke Takahashi
- Department of NeurologyGraduate School of MedicineKyoto UniversityKyotoJapan
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