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Overgaard Wichmann T, Hedegaard Højsager M, Hasager Damkier H. Water channels in the brain and spinal cord-overview of the role of aquaporins in traumatic brain injury and traumatic spinal cord injury. Front Cell Neurosci 2024; 18:1414662. [PMID: 38818518 PMCID: PMC11137310 DOI: 10.3389/fncel.2024.1414662] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2024] [Accepted: 05/03/2024] [Indexed: 06/01/2024] Open
Abstract
Knowledge about the mechanisms underlying the fluid flow in the brain and spinal cord is essential for discovering the mechanisms implicated in the pathophysiology of central nervous system diseases. During recent years, research has highlighted the complexity of the fluid flow movement in the brain through a glymphatic system and a lymphatic network. Less is known about these pathways in the spinal cord. An important aspect of fluid flow movement through the glymphatic pathway is the role of water channels, especially aquaporin 1 and 4. This review provides an overview of the role of these aquaporins in brain and spinal cord, and give a short introduction to the fluid flow in brain and spinal cord during in the healthy brain and spinal cord as well as during traumatic brain and spinal cord injury. Finally, this review gives an overview of the current knowledge about the role of aquaporins in traumatic brain and spinal cord injury, highlighting some of the complexities and knowledge gaps in the field.
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2
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Yaghoobi Z, Seyed Bagher Nazeri SS, Asadi A, Derafsh E, Talebi Taheri A, Tamtaji Z, Dadgostar E, Rahmati-Dehkordi F, Aschner M, Mirzaei H, Tamtaji OR, Nabavizadeh F. Non-coding RNAs and Aquaporin 4: Their Role in the Pathogenesis of Neurological Disorders. Neurochem Res 2024; 49:583-596. [PMID: 38114727 DOI: 10.1007/s11064-023-04067-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2023] [Revised: 11/10/2023] [Accepted: 11/14/2023] [Indexed: 12/21/2023]
Abstract
Neurological disorders are a major group of non-communicable diseases affecting quality of life. Non-Coding RNAs (ncRNAs) have an important role in the etiology of neurological disorders. In studies on the genesis of neurological diseases, aquaporin 4 (AQP4) expression and activity have both been linked to ncRNAs. The upregulation or downregulation of several ncRNAs leads to neurological disorder progression by targeting AQP4. The role of ncRNAs and AQP4 in neurological disorders is discussed in this review.
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Affiliation(s)
- Zahra Yaghoobi
- Electrophysiology Research Center, Neuroscience Institute, Tehran University of Medical Sciences, Tehran, I.R. of Iran
- Department of Physiology, School of Medicine, Tehran University of Medical Sciences, Tehran, I.R. of Iran
| | | | - Amir Asadi
- Psychiatry and Behavioral Sciences Research Center, School of Medicine, Addiction Institute, and Department of Psychiatry, Mazandaran University of Medical Sciences, Sari, Iran
| | - Ehsan Derafsh
- Windsor University School of Medicine, Cayon, St Kitts and Nevis
| | - Abdolkarim Talebi Taheri
- Student Research Committee, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Zeinab Tamtaji
- Student Research Committee, Kashan University of Medical Sciences, Kashan, I.R. of Iran
| | - Ehsan Dadgostar
- Behavioral Sciences Research Center, Isfahan University of Medical Sciences, Isfahan, I.R. of Iran
- Student Research Committee, Isfahan University of Medical Sciences, Isfahan, I.R. of Iran
| | - Fatemeh Rahmati-Dehkordi
- Electrophysiology Research Center, Neuroscience Institute, Tehran University of Medical Sciences, Tehran, I.R. of Iran
- Department of Physiology, School of Medicine, Tehran University of Medical Sciences, Tehran, I.R. of Iran
| | - Michael Aschner
- Department of Molecular Pharmacology, Albert Einstein College of Medicine, Bronx, NY, 10461, USA
| | - Hamed Mirzaei
- Research Center for Biochemistry and Nutrition in Metabolic Diseases, Kashan University of Medical Sciences, Kashan, I.R. of Iran.
| | - Omid Reza Tamtaji
- Electrophysiology Research Center, Neuroscience Institute, Tehran University of Medical Sciences, Tehran, I.R. of Iran.
- Department of Physiology, School of Medicine, Tehran University of Medical Sciences, Tehran, I.R. of Iran.
| | - Fatemeh Nabavizadeh
- Electrophysiology Research Center, Neuroscience Institute, Tehran University of Medical Sciences, Tehran, I.R. of Iran.
- Department of Physiology, School of Medicine, Tehran University of Medical Sciences, Tehran, I.R. of Iran.
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3
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Dong H, Wen X, Zhang BW, Wu Z, Zou W. Astrocytes in intracerebral hemorrhage: impact and therapeutic objectives. Front Mol Neurosci 2024; 17:1327472. [PMID: 38419793 PMCID: PMC10899346 DOI: 10.3389/fnmol.2024.1327472] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Accepted: 01/25/2024] [Indexed: 03/02/2024] Open
Abstract
Intracerebral hemorrhage (ICH) manifests precipitously and profoundly impairs the neurological function in patients who are affected. The etiology of subsequent injury post-ICH is multifaceted, characterized by the intricate interplay of various factors, rendering therapeutic interventions challenging. Astrocytes, a distinct class of glial cells, interact with neurons and microglia, and are implicated in a series of pathophysiological alterations following ICH. A comprehensive examination of the functions and mechanisms associated with astrocytic proteins may shed light on the role of astrocytes in ICH pathology and proffer innovative therapeutic avenues for ICH management.
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Affiliation(s)
- Hao Dong
- The First Clinical Medical College, Heilongjiang University of Chinese Medicine, Harbin, China
| | - Xin Wen
- The First Clinical Medical College, Heilongjiang University of Chinese Medicine, Harbin, China
| | - Bai-Wen Zhang
- The First Clinical Medical College, Heilongjiang University of Chinese Medicine, Harbin, China
| | - Zhe Wu
- The First Clinical Medical College, Heilongjiang University of Chinese Medicine, Harbin, China
| | - Wei Zou
- The Third Department of Acupuncture and Moxibustion, First Affiliated Hospital, Heilongjiang University of Chinese Medicine, Harbin, China
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4
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Seblani M, Ertlen C, Coyle T, Decherchi P, Brezun JM. Combined effect of trifluoperazine and sodium cromoglycate on reducing acute edema and limiting lasting functional impairments after spinal cord injury in rats. Exp Neurol 2024; 372:114612. [PMID: 37993080 DOI: 10.1016/j.expneurol.2023.114612] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Revised: 11/10/2023] [Accepted: 11/15/2023] [Indexed: 11/24/2023]
Abstract
Edema formation is one of the very first events to occur after spinal cord injury (SCI) leading to an increase of the intrathecal pressure and consequently to serious spinal tissue and functional impairments. Current edema treatments are still symptomatic and/or non-specific. Since edema formation mechanisms are mainly described as vasogenic and cytotoxic, it becomes crucial to understand the interplay between these two subtypes. Acting on key targets to inhibit edema formation may reduce secondary damage and related functional impairments. In this study, we characterize the edema kinetic after T9-10 spinal contusion. We use trifluoperazine (TFP) to block the expression and the functional subcellular localization of aquaporin-4 supposed to be implicated in the cytotoxic edema formation. We also use sodium cromoglycate (SCG) to deactivate mast cell degranulation known to be implicated in the vasogenic edema formation. Our results show a significant reduction of edema after TFP treatment and after TFP-SCG combined treatment compared to control. This reduction is correlated with limited onset of initial sensorimotor impairments particularly after combined treatment. Our results highlight the importance of potential synergetic targets in early edema therapy after SCI as part of tissue sparing strategies.
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Affiliation(s)
- Mostafa Seblani
- Aix Marseille Univ, CNRS, ISM, UMR7287, Institut des Sciences du Mouvement: Etienne-Jules MAREY, Team "Plasticité des Systèmes Nerveux et Musculaire" (PSNM), Parc Scientifique et Technologique de Luminy, CC910-163, Avenue de Luminy, F-13288 Marseille, Cedex 09, France
| | - Céline Ertlen
- Aix Marseille Univ, CNRS, ISM, UMR7287, Institut des Sciences du Mouvement: Etienne-Jules MAREY, Team "Plasticité des Systèmes Nerveux et Musculaire" (PSNM), Parc Scientifique et Technologique de Luminy, CC910-163, Avenue de Luminy, F-13288 Marseille, Cedex 09, France
| | - Thelma Coyle
- Aix Marseille Univ, CNRS, ISM, UMR7287, Institut des Sciences du Mouvement: Etienne-Jules MAREY, Team "Plasticité des Systèmes Nerveux et Musculaire" (PSNM), Parc Scientifique et Technologique de Luminy, CC910-163, Avenue de Luminy, F-13288 Marseille, Cedex 09, France
| | - Patrick Decherchi
- Aix Marseille Univ, CNRS, ISM, UMR7287, Institut des Sciences du Mouvement: Etienne-Jules MAREY, Team "Plasticité des Systèmes Nerveux et Musculaire" (PSNM), Parc Scientifique et Technologique de Luminy, CC910-163, Avenue de Luminy, F-13288 Marseille, Cedex 09, France
| | - Jean-Michel Brezun
- Aix Marseille Univ, CNRS, ISM, UMR7287, Institut des Sciences du Mouvement: Etienne-Jules MAREY, Team "Plasticité des Systèmes Nerveux et Musculaire" (PSNM), Parc Scientifique et Technologique de Luminy, CC910-163, Avenue de Luminy, F-13288 Marseille, Cedex 09, France.
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5
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Sun C, Deng J, Ma Y, Meng F, Cui X, Li M, Li J, Li J, Yin P, Kong L, Zhang L, Tang P. The dual role of microglia in neuropathic pain after spinal cord injury: Detrimental and protective effects. Exp Neurol 2023; 370:114570. [PMID: 37852469 DOI: 10.1016/j.expneurol.2023.114570] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Revised: 09/21/2023] [Accepted: 10/11/2023] [Indexed: 10/20/2023]
Abstract
Spinal cord injury (SCI) is a debilitating condition that is frequently accompanied by neuropathic pain, resulting in significant physical and psychological harm to a vast number of individuals globally. Despite the high prevalence of neuropathic pain following SCI, the precise underlying mechanism remains incompletely understood. Microglia are a type of innate immune cell that are present in the central nervous system (CNS). They have been observed to have a significant impact on neuropathic pain following SCI. This article presents a comprehensive overview of recent advances in understanding the role of microglia in the development of neuropathic pain following SCI. Specifically, the article delves into the detrimental and protective effects of microglia on neuropathic pain following SCI, as well as the mechanisms underlying their interconversion. Furthermore, the article provides a thorough overview of potential avenues for future research in this area.
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Affiliation(s)
- Chang Sun
- Department of Orthopedics, The Fourth Medical Center of Chinese PLA General Hospital, Beijing, China; National Clinical Research Center for Orthopedics, Sports Medicine and Rehabilitation, Beijing, China; Department of Orthopedics, Air Force Medical Center, PLA, Beijing, China
| | - Junhao Deng
- Department of Orthopedics, The Fourth Medical Center of Chinese PLA General Hospital, Beijing, China; National Clinical Research Center for Orthopedics, Sports Medicine and Rehabilitation, Beijing, China; School of Life Sciences, Tsinghua University, Beijing, China; State Key Laboratory of Precision Measurement Technology and Instruments, Department of Precision Instruments, Tsinghua University, Beijing, China; IDG/McGovern Institute for Brain Research, Tsinghua University, Beijing, China
| | - Yifei Ma
- School of Medicine, Nankai University, Tianjin, China
| | - Fanqi Meng
- Department of Anesthesiology, Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Xiang Cui
- Department of Orthopedics, The Fourth Medical Center of Chinese PLA General Hospital, Beijing, China; National Clinical Research Center for Orthopedics, Sports Medicine and Rehabilitation, Beijing, China
| | - Ming Li
- Department of Orthopedics, The Fourth Medical Center of Chinese PLA General Hospital, Beijing, China; National Clinical Research Center for Orthopedics, Sports Medicine and Rehabilitation, Beijing, China
| | - Jiantao Li
- Department of Orthopedics, The Fourth Medical Center of Chinese PLA General Hospital, Beijing, China; National Clinical Research Center for Orthopedics, Sports Medicine and Rehabilitation, Beijing, China
| | - Jia Li
- Department of Orthopedics, The Fourth Medical Center of Chinese PLA General Hospital, Beijing, China; National Clinical Research Center for Orthopedics, Sports Medicine and Rehabilitation, Beijing, China
| | - Pengbin Yin
- Department of Orthopedics, The Fourth Medical Center of Chinese PLA General Hospital, Beijing, China; National Clinical Research Center for Orthopedics, Sports Medicine and Rehabilitation, Beijing, China
| | - Lingjie Kong
- State Key Laboratory of Precision Measurement Technology and Instruments, Department of Precision Instruments, Tsinghua University, Beijing, China; IDG/McGovern Institute for Brain Research, Tsinghua University, Beijing, China.
| | - Licheng Zhang
- Department of Orthopedics, The Fourth Medical Center of Chinese PLA General Hospital, Beijing, China; National Clinical Research Center for Orthopedics, Sports Medicine and Rehabilitation, Beijing, China.
| | - Peifu Tang
- Department of Orthopedics, The Fourth Medical Center of Chinese PLA General Hospital, Beijing, China; National Clinical Research Center for Orthopedics, Sports Medicine and Rehabilitation, Beijing, China.
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6
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Taheri N, Sarrand J, Soyfoo MS. Neuromyelitis Optica: Pathogenesis Overlap with Other Autoimmune Diseases. Curr Allergy Asthma Rep 2023; 23:647-654. [PMID: 37889429 DOI: 10.1007/s11882-023-01112-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/18/2023] [Indexed: 10/28/2023]
Abstract
PURPOSE OF REVIEW Neuromyelitis optica (NMO) is an auto-immune disease essentially depicted by optic neuritis and transverse myelitis. Per se, NMO was initially believed to be a sub-type of multiple sclerosis with typical demyelinating cerebral lesions and optic nerve inflammation. More recently, corroborating lignes of evidence have strengthened the concept of the spectrum of diseases associated with NMO and more specifically with the role of anti-aquaporin-4 antibodies in the pathogenesis of disease. RECENT FINDINGS In this article, we review the recent pathogenic findings in NMO and more interestingly the newly discovered role of anti-aquaporin-4 antibodies as key players in triggering cerebral lesions. The concept of spectrum of diseases associated with NMO is also discussed. These recent findings have paved in the further understanding of the pathogenesis underlying NMO and new treatments are currently being developed targeting anti-aquaporin-4 antibodies.
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Affiliation(s)
- Nadim Taheri
- Department of Rheumatology, Hopital Universitaire de Bruxelles, HUB, ULB, 808 Route de Lennik, 1070, Brussels, Belgium
| | - Julie Sarrand
- Department of Rheumatology, Hopital Universitaire de Bruxelles, HUB, ULB, 808 Route de Lennik, 1070, Brussels, Belgium
| | - Muhammad S Soyfoo
- Department of Rheumatology, Hopital Universitaire de Bruxelles, HUB, ULB, 808 Route de Lennik, 1070, Brussels, Belgium.
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7
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Abbaszadeh F, Jorjani M, Joghataei MT, Raminfard S, Mehrabi S. Astaxanthin ameliorates spinal cord edema and astrocyte activation via suppression of HMGB1/TLR4/NF-κB signaling pathway in a rat model of spinal cord injury. NAUNYN-SCHMIEDEBERG'S ARCHIVES OF PHARMACOLOGY 2023; 396:3075-3086. [PMID: 37145127 DOI: 10.1007/s00210-023-02512-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/03/2022] [Accepted: 04/25/2023] [Indexed: 05/06/2023]
Abstract
Spinal cord edema is a quick-onset phenomenon with long-term effects. This complication is associated with inflammatory responses, as well as poor motor function. No effective treatment has been developed against spinal edema, which urges the need to provide novel therapies. Astaxanthin (AST) is a fat-soluble carotenoid with anti-inflammatory effects and a promising candidate for treating neurological disorders. This study aimed to investigate the underlying mechanism of AST on the inhibition of spinal cord edema, astrocyte activation, and reduction of inflammatory responsesin a rat compression spinal cord injury (SCI) model. Male rats underwent laminectomy at thoracic 8-9, and the SCI model was induced using an aneurysm clip. After SCI, rats received dimethyl sulfoxide or AST via intrathecal injection. The effects of AST were examined on the motor function, spinal cord edema, integrity of blood-spinal cord barrier (BSCB), and expression of high mobility group box 1 (HMGB1), toll-like receptor 4 (TLR4), nuclear factor-kappa B (NF-κB), glial fibrillary acidic protein (GFAP), and aquaporin-4 (AQP4), and matrix metallopeptidase- 9 (MMP-9) post-SCI. We showed that AST potentially improved the recovery of motor function and inhibited the spinal cord edema via maintaining the integrity of BSCB, reducing the expression of HMGB1, TLR4, and NF-κB, MMP-9 as well as downregulation of astrocyte activation (GFAP) and AQP4 expression. AST improves motor function and reduces edema and inflammatory responses in the spinal tissue. These effects are mediated by suppression of the HMGB1/TLR4/NF-κB signaling pathway, suppressing post-SCI astrocyte activation, and decreasing AQP4 and MMP-9 expression.
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Affiliation(s)
- Fatemeh Abbaszadeh
- Department of Neuroscience, Faculty of Advanced Technologies in Medicine, Iran University of Medical Science, Tehran, Iran
- Neurobiology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Masoumeh Jorjani
- Neurobiology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
- Department of Pharmacology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | - Mohammad Taghi Joghataei
- Department of Neuroscience, Faculty of Advanced Technologies in Medicine, Iran University of Medical Science, Tehran, Iran.
- Department of Innovation in Medical Education, Faculty of Medicine, Ottawa University, Ottawa, Canada.
| | - Samira Raminfard
- Neuroimaging and Analysis Group, Research Center for Molecular and Cellular Imaging, Advanced Medical Technologies and Equipment Institue, Tehran University of Medical Sciences, Tehran, Iran
| | - Soraya Mehrabi
- Department of Neuroscience, Faculty of Advanced Technologies in Medicine, Iran University of Medical Science, Tehran, Iran
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8
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Seblani M, Decherchi P, Brezun JM. Edema after CNS Trauma: A Focus on Spinal Cord Injury. Int J Mol Sci 2023; 24:ijms24087159. [PMID: 37108324 PMCID: PMC10138956 DOI: 10.3390/ijms24087159] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Revised: 04/09/2023] [Accepted: 04/11/2023] [Indexed: 04/29/2023] Open
Abstract
Edema after spinal cord injury (SCI) is one of the first observations after the primary injury and lasts for few days after trauma. It has serious consequences on the affected tissue and can aggravate the initial devastating condition. To date, the mechanisms of the water content increase after SCI are not fully understood. Edema formation results in a combination of interdependent factors related to mechanical damage after the initial trauma progressing, along with the subacute and acute phases of the secondary lesion. These factors include mechanical disruption and subsequent inflammatory permeabilization of the blood spinal cord barrier, increase in the capillary permeability, deregulation in the hydrostatic pressure, electrolyte-imbalanced membranes and water uptake in the cells. Previous research has attempted to characterize edema formation by focusing mainly on brain swelling. The purpose of this review is to summarize the current understanding of the differences in edema formation in the spinal cord and brain, and to highlight the importance of elucidating the specific mechanisms of edema formation after SCI. Additionally, it outlines findings on the spatiotemporal evolution of edema after spinal cord lesion and provides a general overview of prospective treatment strategies by focusing on insights to prevent edema formation after SCI.
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Affiliation(s)
- Mostafa Seblani
- Aix Marseille Univ, CNRS, ISM, UMR 7287, Institut des Sciences du Mouvement: Etienne-Jules MAREY, Equipe «Plasticité des Systèmes Nerveux et Musculaire» (PSNM), Parc Scientifique et Technologique de Luminy, CC910-163, Avenue de Luminy, F-13288 Marseille, CEDEX 09, France
| | - Patrick Decherchi
- Aix Marseille Univ, CNRS, ISM, UMR 7287, Institut des Sciences du Mouvement: Etienne-Jules MAREY, Equipe «Plasticité des Systèmes Nerveux et Musculaire» (PSNM), Parc Scientifique et Technologique de Luminy, CC910-163, Avenue de Luminy, F-13288 Marseille, CEDEX 09, France
| | - Jean-Michel Brezun
- Aix Marseille Univ, CNRS, ISM, UMR 7287, Institut des Sciences du Mouvement: Etienne-Jules MAREY, Equipe «Plasticité des Systèmes Nerveux et Musculaire» (PSNM), Parc Scientifique et Technologique de Luminy, CC910-163, Avenue de Luminy, F-13288 Marseille, CEDEX 09, France
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9
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Mayo F, González-Vinceiro L, Hiraldo-González L, Calle-Castillejo C, Morales-Alvarez S, Ramírez-Lorca R, Echevarría M. Aquaporin-4 Expression Switches from White to Gray Matter Regions during Postnatal Development of the Central Nervous System. Int J Mol Sci 2023; 24:3048. [PMID: 36769371 PMCID: PMC9917791 DOI: 10.3390/ijms24033048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Revised: 01/24/2023] [Accepted: 01/31/2023] [Indexed: 02/09/2023] Open
Abstract
Aquaporin-4 (AQP4) is the most abundant water channel in the central nervous system and plays a fundamental role in maintaining water homeostasis there. In adult mice, AQP4 is located mainly in ependymal cells, in the endfeet of perivascular astrocytes, and in the glia limitans. Meanwhile, its expression, location, and function throughout postnatal development remain largely unknown. Here, the expression of AQP4 mRNA was studied by in situ hybridization and RT-qPCR, and the localization and amount of protein was studied by immunofluorescence and western blotting, both in the brain and spinal cord. For this, wild-type mice of the C57BL/6 line, aged 1, 3, 7, 11, 20, and 60 days, and 18 months were used. The results showed a change in both the expression and location of AQP4 in postnatal development compared to those during adult life. In the early stages of postnatal development it appears in highly myelinated areas, such as the corpus callosum or cerebellum, and as the animal grows, it disappears from these areas, passing through the cortical regions of the forebrain and concentrating around the blood vessels. These findings suggest an unprecedented possible role for AQP4 in the early cell differentiation process, during the first days of life in the newborn animal, which will lead to myelination.
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Affiliation(s)
- Francisco Mayo
- Institute of Biomedicine of Seville (IBiS), Virgen del Rocío University Hospital, (HUVR)/Spanish National Research Council (CSIC)/University of Seville, 41013 Seville, Spain
- Department of Physiology and Biophysics, University of Seville, 41009 Seville, Spain
| | - Lourdes González-Vinceiro
- Institute of Biomedicine of Seville (IBiS), Virgen del Rocío University Hospital, (HUVR)/Spanish National Research Council (CSIC)/University of Seville, 41013 Seville, Spain
- Department of Physiology and Biophysics, University of Seville, 41009 Seville, Spain
| | - Laura Hiraldo-González
- Institute of Biomedicine of Seville (IBiS), Virgen del Rocío University Hospital, (HUVR)/Spanish National Research Council (CSIC)/University of Seville, 41013 Seville, Spain
- Department of Physiology and Biophysics, University of Seville, 41009 Seville, Spain
| | - Claudia Calle-Castillejo
- Institute of Biomedicine of Seville (IBiS), Virgen del Rocío University Hospital, (HUVR)/Spanish National Research Council (CSIC)/University of Seville, 41013 Seville, Spain
| | - Sara Morales-Alvarez
- Institute of Biomedicine of Seville (IBiS), Virgen del Rocío University Hospital, (HUVR)/Spanish National Research Council (CSIC)/University of Seville, 41013 Seville, Spain
| | - Reposo Ramírez-Lorca
- Institute of Biomedicine of Seville (IBiS), Virgen del Rocío University Hospital, (HUVR)/Spanish National Research Council (CSIC)/University of Seville, 41013 Seville, Spain
- Department of Physiology and Biophysics, University of Seville, 41009 Seville, Spain
| | - Miriam Echevarría
- Institute of Biomedicine of Seville (IBiS), Virgen del Rocío University Hospital, (HUVR)/Spanish National Research Council (CSIC)/University of Seville, 41013 Seville, Spain
- Department of Physiology and Biophysics, University of Seville, 41009 Seville, Spain
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10
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Lu K, Chen X, Yao X, An Y, Wang X, Qin L, Li X, Wang Z, Liu S, Sun Z, Zhang L, Chen L, Li B, Liu B, Wang W, Ding X, Yang Y, Zhang M, Zou S, Dong H. Phosphorylation of a wheat aquaporin at two sites enhances both plant growth and defense. MOLECULAR PLANT 2022; 15:1772-1789. [PMID: 36207815 DOI: 10.1016/j.molp.2022.10.003] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/10/2022] [Revised: 08/30/2022] [Accepted: 10/05/2022] [Indexed: 06/16/2023]
Abstract
Eukaryotic aquaporins share the characteristic of functional multiplicity in transporting distinct substrates and regulating various processes, but the underlying molecular basis for this is largely unknown. Here, we report that the wheat (Triticum aestivum) aquaporin TaPIP2;10 undergoes phosphorylation to promote photosynthesis and productivity and to confer innate immunity against pathogens and a generalist aphid pest. In response to elevated atmospheric CO2 concentrations, TaPIP2;10 is phosphorylated at the serine residue S280 and thereafter transports CO2 into wheat cells, resulting in enhanced photosynthesis and increased grain yield. In response to apoplastic H2O2 induced by pathogen or insect attacks, TaPIP2;10 is phosphorylated at S121 and this phosphorylated form transports H2O2 into the cytoplasm, where H2O2 intensifies host defenses, restricting further attacks. Wheat resistance and grain yield could be simultaneously increased by TaPIP2;10 overexpression or by expressing a TaPIP2;10 phosphomimic with aspartic acid substitutions at S121 and S280, thereby improving both crop productivity and immunity.
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Affiliation(s)
- Kai Lu
- College of Plant Protection, State Key Laboratory of Crop Biology, Qilu College, Shandong Agricultural University, Taian 271018, China
| | - Xiaochen Chen
- College of Plant Protection, State Key Laboratory of Crop Biology, Qilu College, Shandong Agricultural University, Taian 271018, China
| | - Xiaohui Yao
- College of Plant Protection, State Key Laboratory of Crop Biology, Qilu College, Shandong Agricultural University, Taian 271018, China
| | - Yuyan An
- College of Life Sciences, Shaanxi Normal University, Xi'an 710019, China
| | - Xuan Wang
- Institute of Plant Molecular Biology, State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing 210023, China
| | - Lina Qin
- College of Plant Protection, State Key Laboratory of Crop Biology, Qilu College, Shandong Agricultural University, Taian 271018, China
| | - Xiaoxu Li
- College of Plant Protection, State Key Laboratory of Crop Biology, Qilu College, Shandong Agricultural University, Taian 271018, China
| | - Zuodong Wang
- College of Plant Protection, State Key Laboratory of Crop Biology, Qilu College, Shandong Agricultural University, Taian 271018, China
| | - Shuo Liu
- College of Plant Protection, State Key Laboratory of Crop Biology, Qilu College, Shandong Agricultural University, Taian 271018, China
| | - Zhimao Sun
- College of Life Sciences, Shaanxi Normal University, Xi'an 710019, China
| | - Liyuan Zhang
- College of Plant Protection, State Key Laboratory of Crop Biology, Qilu College, Shandong Agricultural University, Taian 271018, China
| | - Lei Chen
- College of Plant Protection, State Key Laboratory of Crop Biology, Qilu College, Shandong Agricultural University, Taian 271018, China
| | - Baoyan Li
- Institute of Plant Protection & Resource and Environment, Yantai Academy of Agricultural Sciences, Yantai 265599, China
| | - Baoyou Liu
- Institute of Plant Protection & Resource and Environment, Yantai Academy of Agricultural Sciences, Yantai 265599, China
| | - Weiyang Wang
- College of Plant Protection, State Key Laboratory of Crop Biology, Qilu College, Shandong Agricultural University, Taian 271018, China
| | - Xinhua Ding
- College of Plant Protection, State Key Laboratory of Crop Biology, Qilu College, Shandong Agricultural University, Taian 271018, China
| | - Yonghua Yang
- Institute of Plant Molecular Biology, State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing 210023, China
| | - Meixiang Zhang
- College of Life Sciences, Shaanxi Normal University, Xi'an 710019, China.
| | - Shenshen Zou
- College of Plant Protection, State Key Laboratory of Crop Biology, Qilu College, Shandong Agricultural University, Taian 271018, China.
| | - Hansong Dong
- College of Plant Protection, State Key Laboratory of Crop Biology, Qilu College, Shandong Agricultural University, Taian 271018, China.
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Xiao S, Zhong N, Yang Q, Li A, Tong W, Zhang Y, Yao G, Wang S, Liu J, Liu Z. Aucubin promoted neuron functional recovery by suppressing inflammation and neuronal apoptosis in a spinal cord injury model. Int Immunopharmacol 2022; 111:109163. [PMID: 35994851 DOI: 10.1016/j.intimp.2022.109163] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Revised: 07/27/2022] [Accepted: 08/11/2022] [Indexed: 11/30/2022]
Abstract
BACKGROUND Spinal cord injury (SCI) can cause severe motor impairment. Post-SCI treatment has focused primarily on secondary injury, with neuroinflammation and neuronal apoptosis as the primary therapeutic targets. Aucubin (Au), a Chinese herbal medicine, exerts anti-inflammatory and neuroprotective effects. The therapeutic effects of Aucubin in SCI have not been reported. METHODS In this study, we carried out an in vivo SCI model and a series of in vitro experiments to explore the therapeutic effect of Aucubin. Western Blotting and immunofluorescence were used to study the effect of Aucubin on microglial polarization and neuronal apoptosis and its underlying mechanism. RESULTS We found that Aucubin can promote axonal regeneration by reducing neuroinflammation and neuronal apoptosis, which is beneficial to motor recovery after spinal cord injury in rats. Our further in vitro experiments showed that Aucubin can activate the toll-like receptor 4 (TLR4)/myeloid differentiation protein-88 (MyD88)/IκBα/nuclear factor kappa B (NF-κB) signaling pathway to reduce neuroinflammation and reverse mitochondrial dysfunction to reduce neuronal apoptosis. CONCLUSIONS In summary, these results suggest that Aucubin may ameliorate secondary injury after SCI by reducing neuroinflammation and neuronal apoptosis. Therefore, Au may be a promising post-SCI therapeutic drug.
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Affiliation(s)
- Shining Xiao
- Medical Innovation Center, The First Affiliated Hospital of Nanchang University, Nanchang 330006, China; Institute of Spine and Spinal Cord, Nanchang University, Nanchang 330006, China; The First Clinical Medical College of Nanchang University, Nanchang 330006, China
| | - Nanshan Zhong
- Medical Innovation Center, The First Affiliated Hospital of Nanchang University, Nanchang 330006, China; Institute of Spine and Spinal Cord, Nanchang University, Nanchang 330006, China; The First Clinical Medical College of Nanchang University, Nanchang 330006, China
| | - Quanming Yang
- Department of Orthopedics, Ningbo First Hospital, Ningbo 315000, China
| | - Anan Li
- Medical Innovation Center, The First Affiliated Hospital of Nanchang University, Nanchang 330006, China; Institute of Spine and Spinal Cord, Nanchang University, Nanchang 330006, China; The First Clinical Medical College of Nanchang University, Nanchang 330006, China
| | - Weilai Tong
- Medical Innovation Center, The First Affiliated Hospital of Nanchang University, Nanchang 330006, China; Institute of Spine and Spinal Cord, Nanchang University, Nanchang 330006, China; The First Clinical Medical College of Nanchang University, Nanchang 330006, China
| | - Yu Zhang
- Medical Innovation Center, The First Affiliated Hospital of Nanchang University, Nanchang 330006, China; Institute of Spine and Spinal Cord, Nanchang University, Nanchang 330006, China; The First Clinical Medical College of Nanchang University, Nanchang 330006, China
| | - Geliang Yao
- Medical Innovation Center, The First Affiliated Hospital of Nanchang University, Nanchang 330006, China; Institute of Spine and Spinal Cord, Nanchang University, Nanchang 330006, China; The First Clinical Medical College of Nanchang University, Nanchang 330006, China
| | - Shijiang Wang
- Medical Innovation Center, The First Affiliated Hospital of Nanchang University, Nanchang 330006, China; Institute of Spine and Spinal Cord, Nanchang University, Nanchang 330006, China; The First Clinical Medical College of Nanchang University, Nanchang 330006, China
| | - Jiaming Liu
- Medical Innovation Center, The First Affiliated Hospital of Nanchang University, Nanchang 330006, China; Institute of Spine and Spinal Cord, Nanchang University, Nanchang 330006, China.
| | - Zhili Liu
- Medical Innovation Center, The First Affiliated Hospital of Nanchang University, Nanchang 330006, China; Institute of Spine and Spinal Cord, Nanchang University, Nanchang 330006, China.
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12
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The Water Transport System in Astrocytes–Aquaporins. Cells 2022; 11:cells11162564. [PMID: 36010640 PMCID: PMC9406552 DOI: 10.3390/cells11162564] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2022] [Revised: 07/26/2022] [Accepted: 08/08/2022] [Indexed: 11/16/2022] Open
Abstract
Highlights (AQPs) are transmembrane proteins responsible for fast water movement across cell membranes, including those of astrocytes. The expression and subcellular localization of AQPs in astrocytes are highly dynamic under physiological and pathological conditions. Besides their primary function in water homeostasis, AQPs participate in many ancillary functions including glutamate clearance in tripartite synapses and cell migration.
Abstract Astrocytes have distinctive morphological and functional characteristics, and are found throughout the central nervous system. Astrocytes are now known to be far more than just housekeeping cells in the brain. Their functions include contributing to the formation of the blood–brain barrier, physically and metabolically supporting and communicating with neurons, regulating the formation and functions of synapses, and maintaining water homeostasis and the microenvironment in the brain. Aquaporins (AQPs) are transmembrane proteins responsible for fast water movement across cell membranes. Various subtypes of AQPs (AQP1, AQP3, AQP4, AQP5, AQP8 and AQP9) have been reported to be expressed in astrocytes, and the expressions and subcellular localizations of AQPs in astrocytes are highly correlated with both their physiological and pathophysiological functions. This review describes and summarizes the recent advances in our understanding of astrocytes and AQPs in regard to controlling water homeostasis in the brain. Findings regarding the features of different AQP subtypes, such as their expression, subcellular localization, physiological functions, and the pathophysiological roles of astrocytes are presented, with brain edema and glioma serving as two representative AQP-associated pathological conditions. The aim is to provide a better insight into the elaborate “water distribution” system in cells, exemplified by astrocytes, under normal and pathological conditions.
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Pang QM, Chen SY, Xu QJ, Zhang M, Liang DF, Fu SP, Yu J, Liu ZL, Zhang Q, Zhang T. Effects of astrocytes and microglia on neuroinflammation after spinal cord injury and related immunomodulatory strategies. Int Immunopharmacol 2022; 108:108754. [PMID: 35397392 DOI: 10.1016/j.intimp.2022.108754] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2022] [Revised: 03/14/2022] [Accepted: 03/31/2022] [Indexed: 12/12/2022]
Abstract
Spinal cord injury (SCI) is a catastrophic event which is still without adequate therapies. Neuroinflammation is the main pathogenesis of secondary damage post-SCI, leading to tissue loss and neurological dysfunction. Previous studies have shown that microglia and astrocytes are the major immune cells in the central nervous system (CNS) and play a crucial role in modulating neuroinflammatory responses. In this study, we mainly review the effects of neuroinflammation in SCI, focusing on the contributions of microglia and astrocytes and their cross-talk. Furthermore, we will also discuss therapeutic strategies on how to regulate their immunophenotype to suppress robust inflammation and facilitate injury prognosis.
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Affiliation(s)
- Qi-Ming Pang
- Key Laboratory of Cell Engineering of Guizhou Province, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou, China; Department of Orthopedics, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou, China
| | - Si-Yu Chen
- Key Laboratory of Cell Engineering of Guizhou Province, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou, China
| | - Qi-Jing Xu
- Department of Human Anatomy, Zunyi Medical University, Zunyi, Guizhou, China
| | - Meng Zhang
- Key Laboratory of Cell Engineering of Guizhou Province, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou, China
| | - Da-Fei Liang
- Department of Human Anatomy, Zunyi Medical University, Zunyi, Guizhou, China
| | - Sheng-Ping Fu
- Key Laboratory of Cell Engineering of Guizhou Province, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou, China; Department of Orthopedics, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou, China
| | - Jiang Yu
- Key Laboratory of Cell Engineering of Guizhou Province, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou, China
| | - Zu-Lin Liu
- Key Laboratory of Cell Engineering of Guizhou Province, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou, China
| | - Qian Zhang
- Department of Human Anatomy, Zunyi Medical University, Zunyi, Guizhou, China.
| | - Tao Zhang
- Key Laboratory of Cell Engineering of Guizhou Province, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou, China; Department of Orthopedics, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou, China.
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