1
|
Xin Y, Chen J, Zhang H, Ostrowski RP, Liang Y, Zhao J, Xiang X, Liang F, Fu W, Huang H, Wu X, Su J, Deng J, He Z. Dexras1 Induces Dysdifferentiation of Oligodendrocytes and Myelin Injury by Inhibiting the cAMP-CREB Pathway after Subarachnoid Hemorrhage. Cells 2022; 11:cells11192976. [PMID: 36230939 PMCID: PMC9564295 DOI: 10.3390/cells11192976] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2022] [Revised: 09/10/2022] [Accepted: 09/20/2022] [Indexed: 11/16/2022] Open
Abstract
White matter damage (WMD), one of the research hotspots of subarachnoid hemorrhage (SAH), mainly manifests itself as myelin injury and oligodendrocyte differentiation disorder after SAH, although the specific mechanism remains unclear. Dexamethasone-induced Ras-related protein 1(Dexras1) has been reported to be involved in nervous system damage in autoimmune encephalitis and multiple sclerosis. However, whether Dexras1 participates in dysdifferentiation of oligodendrocytes and myelin injury after SAH has yet to be examined, which is the reason for creating the research content of this article. Here, intracerebroventricular lentiviral administration was used to modulate Dexras1 levels in order to determine its functional influence on neurological injury after SAH. Immunofluorescence, transmission electron microscopy, and Western blotting methods, were used to investigate the effects of Dexras1 on demyelination, glial cell activation, and differentiation of oligodendrocyte progenitor cells (OPCs) after SAH. Primary rat brain neurons were treated with oxyhemoglobin to verify the association between Dexras1 and cAMP-CREB. The results showed that Dexras1 levels were significantly increased upon in vivo SAH model, accompanied by OPC differentiation disturbances and myelin injury. Dexras1 overexpression significantly worsened OPC dysdifferentiation and myelin injury after SAH. In contrast, Dexras1 knockdown ameliorated myelin injury, OPC dysdifferentiation, and glial cell activation. Further research of the underlying mechanism discovered that the cAMP-CREB pathway was inhibited after Dexras1 overexpression in the in vitro model of SAH. This study is the first to confirm that Dexras1 induced oligodendrocyte dysdifferentiation and myelin injury after SAH by inhibiting the cAMP-CREB pathway. This present research may reveal novel therapeutic targets for the amelioration of brain injury and neurological dysfunction after SAH.
Collapse
Affiliation(s)
- Yuanjun Xin
- Department of Neurosurgery, The First Affiliated Hospital of Chongqing Medical University, 1 Friendship Road, Chongqing 400016, China
| | - Jie Chen
- Laboratory of Skeletal Development and Regeneration, Institute of Life Sciences, Chongqing Medical University, Chongqing 400016, China
| | - Hongxia Zhang
- Department of Neurosurgery, The First Affiliated Hospital of Chongqing Medical University, 1 Friendship Road, Chongqing 400016, China
| | - Robert P. Ostrowski
- Department of Experimental and Clinical Neuropathology, Mossakowski Medical Research Institute Polish Academy of Sciences, 02-106 Warsaw, Poland
| | - Yidan Liang
- Department of Neurosurgery, The First Affiliated Hospital of Chongqing Medical University, 1 Friendship Road, Chongqing 400016, China
| | - Jun Zhao
- Department of Neurosurgery, The First Affiliated Hospital of Chongqing Medical University, 1 Friendship Road, Chongqing 400016, China
| | - Xiang Xiang
- Department of Neurosurgery, The First Affiliated Hospital of Chongqing Medical University, 1 Friendship Road, Chongqing 400016, China
| | - Fuming Liang
- Department of Neurosurgery, The First Affiliated Hospital of Chongqing Medical University, 1 Friendship Road, Chongqing 400016, China
| | - Wenqiao Fu
- Department of Neurosurgery, The First Affiliated Hospital of Chongqing Medical University, 1 Friendship Road, Chongqing 400016, China
| | - Hao Huang
- Department of Neurosurgery, The First Affiliated Hospital of Chongqing Medical University, 1 Friendship Road, Chongqing 400016, China
| | - Xintong Wu
- Department of Neurosurgery, The First Affiliated Hospital of Chongqing Medical University, 1 Friendship Road, Chongqing 400016, China
| | - Jun Su
- Department of Neurosurgery, The First Affiliated Hospital of Chongqing Medical University, 1 Friendship Road, Chongqing 400016, China
| | - Jiewen Deng
- Department of Neurosurgery, The First Affiliated Hospital of Chongqing Medical University, 1 Friendship Road, Chongqing 400016, China
| | - Zhaohui He
- Department of Neurosurgery, The First Affiliated Hospital of Chongqing Medical University, 1 Friendship Road, Chongqing 400016, China
- Correspondence: ; Tel.:+86-138-830-32981; Fax: +86-21-640-85875
| |
Collapse
|
2
|
Paun IA, Calin BS, Mustaciosu CC, Tanasa E, Moldovan A, Niemczyk A, Dinescu M. Laser Direct Writing via Two-Photon Polymerization of 3D Hierarchical Structures with Cells-Antiadhesive Properties. Int J Mol Sci 2021; 22:ijms22115653. [PMID: 34073424 PMCID: PMC8198338 DOI: 10.3390/ijms22115653] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Revised: 05/06/2021] [Accepted: 05/24/2021] [Indexed: 01/04/2023] Open
Abstract
We report the design and fabrication by laser direct writing via two photons polymerization of innovative hierarchical structures with cell-repellency capability. The structures were designed in the shape of “mushrooms”, consisting of an underside (mushroom’s leg) acting as a support structure and a top side (mushroom’s hat) decorated with micro- and nanostructures. A ripple-like pattern was created on top of the mushrooms, over length scales ranging from several µm (microstructured mushroom-like pillars, MMP) to tens of nm (nanostructured mushroom-like pillars, NMP). The MMP and NMP structures were hydrophobic, with contact angles of (127 ± 2)° and (128 ± 4)°, respectively, whereas flat polymer surfaces were hydrophilic, with a contact angle of (43 ± 1)°. The cell attachment on NMP structures was reduced by 55% as compared to the controls, whereas for the MMP, a reduction of only 21% was observed. Moreover, the MMP structures preserved the native spindle-like with phyllopodia cellular shape, whereas the cells from NMP structures showed a round shape and absence of phyllopodia. Overall, the NMP structures were more effective in impeding the cellular attachment and affected the cell shape to a greater extent than the MMP structures. The influence of the wettability on cell adhesion and shape was less important, the cellular behavior being mainly governed by structures’ topography.
Collapse
Affiliation(s)
- Irina A. Paun
- Center for Advanced Laser Technologies (CETAL), National Institute for Laser, Plasma and Radiation Physics, RO-077125 Magurele-Ilfov, Romania;
- Faculty of Applied Sciences, University Politehnica of Bucharest, RO-060042 Bucharest, Romania;
- Correspondence: ; Tel.: +40-770-612-912
| | - Bogdan S. Calin
- Center for Advanced Laser Technologies (CETAL), National Institute for Laser, Plasma and Radiation Physics, RO-077125 Magurele-Ilfov, Romania;
- Faculty of Applied Sciences, University Politehnica of Bucharest, RO-060042 Bucharest, Romania;
| | - Cosmin C. Mustaciosu
- Horia Hulubei National Institute for Physics and Nuclear Engineering IFIN-HH, RO-077125 Magurele-Ilfov, Romania;
- Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, RO-060042 Bucharest, Romania
| | - Eugenia Tanasa
- Faculty of Applied Sciences, University Politehnica of Bucharest, RO-060042 Bucharest, Romania;
- National Institute for Laser, Plasma and Radiation Physics, RO-077125 Magurele-Ilfov, Romania; (A.M.); (M.D.)
| | - Antoniu Moldovan
- National Institute for Laser, Plasma and Radiation Physics, RO-077125 Magurele-Ilfov, Romania; (A.M.); (M.D.)
| | - Agata Niemczyk
- Department of Materials Technology, Faculty of Mechanical Engineering and Mechatronics, West Pomeranian University of Technology in Szczecin, 19 Piastow Ave, 70-310 Szczecin, Poland;
| | - Maria Dinescu
- National Institute for Laser, Plasma and Radiation Physics, RO-077125 Magurele-Ilfov, Romania; (A.M.); (M.D.)
| |
Collapse
|
3
|
Langner E, Lemieszek MK, Kwiecień JM, Rajtar G, Rzeski W, Turski WA. Kynurenic Acid Induces Impairment of Oligodendrocyte Viability: On the Role of Glutamatergic Mechanisms. Neurochem Res 2016; 42:838-845. [PMID: 27444613 PMCID: PMC5357470 DOI: 10.1007/s11064-016-2009-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2016] [Revised: 07/12/2016] [Accepted: 07/15/2016] [Indexed: 01/26/2023]
Abstract
Kynurenic acid (KYNA) is an end stage product of tryptophan metabolism with a variety of functions in the human body, both in the central nervous system (CNS) and in other organs. Although its activity in the human brain has been widely studied and effects on neural cells were emphasized, the effect of KYNA on oligodendroglial cells remains unknown. Present study aims at describing the activity of high concentration of KYNA in OLN-93 cells. The inhibition of OLN-93 oligodendrocytes viability by KYNA in a medium with reduced serum concentration has been demonstrated. Although decreased metabolic activity of KYNA treated OLN-93 cells was shown, the cells proliferation was not altered. KYNA treatment did not alter morphology as well as expression level of cell cycle and proliferation regulating proteins. Furthermore, glutamate receptor antagonists and agonists did not alter the inhibitory effect of KYNA on viability of OLN-93 oligodendrocytes. This study contributes to the elucidation of effects of KYNA on oligodendrocytes in vitro, yet further analyses are necessary to explain the mechanisms behind the damage and loss of myelin sheaths.
Collapse
Affiliation(s)
- Ewa Langner
- Department of Medical Biology, Institute of Rural Health, Lublin, Poland.,Department of Pharmacology, Medical University, Lublin, Poland
| | - Marta K Lemieszek
- Department of Medical Biology, Institute of Rural Health, Lublin, Poland
| | - Jacek M Kwiecień
- Department of Pathology and Molecular Medicine, M. deGroote School of Medicine, McMaster University, Hamilton, Canada.,Department of Clinical Pathomorphology, Medical University, Lublin, Poland
| | - Grażyna Rajtar
- Department of Pharmacology, Medical University, Lublin, Poland
| | - Wojciech Rzeski
- Department of Medical Biology, Institute of Rural Health, Lublin, Poland.,Department of Virology and Immunology, Institute of Microbiology and Biotechnology, Maria Curie-Sklodowska University, Lublin, Poland
| | - Waldemar A Turski
- Department of Experimental and Clinical Pharmacology, Medical University, Lublin, Poland.
| |
Collapse
|
4
|
Reyes JF, Rey NL, Bousset L, Melki R, Brundin P, Angot E. Alpha-synuclein transfers from neurons to oligodendrocytes. Glia 2013; 62:387-98. [PMID: 24382629 DOI: 10.1002/glia.22611] [Citation(s) in RCA: 198] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2013] [Revised: 11/13/2013] [Accepted: 11/15/2013] [Indexed: 01/13/2023]
Abstract
The origin of α-synuclein (α-syn)-positive glial cytoplasmic inclusions found in oligodendrocytes in multiple system atrophy (MSA) is enigmatic, given the fact that oligodendrocytes do not express α-syn mRNA. Recently, neuron-to-neuron transfer of α-syn was suggested to contribute to the pathogenesis of Parkinson's disease. In this study, we explored whether a similar transfer of α-syn might occur from neurons to oligodendrocytes, which conceivably could explain how glial cytoplasmic inclusions are formed. We studied oligodendrocytes in vitro and in vivo and examined their ability to take up different α-syn assemblies. First, we treated oligodendrocytes with monomeric, oligomeric, and fibrillar forms of α-syn proteins and investigated whether α-syn uptake is dynamin-dependent. Second, we injected the same α-syn species into the mouse cortex to assess their uptake in vivo. Finally, we monitored the presence of human α-syn within rat oligodendroglial cells grafted in the striatum of hosts displaying Adeno-Associated Virus-mediated overexpression of human α-syn in the nigro-striatal pathway. Here, we show that oligodendrocytes take up recombinant α-syn monomers, oligomers and, to a lesser extent, fibrils in vitro in a concentration and time-dependent manner, and that this process is inhibited by dynasore. Further, we demonstrate in our injection model that oligodendrocytes also internalize α-syn in vivo. Finally, we provide the first direct evidence that α-syn can transfer to grafted oligodendroglial cells from host rat brain neurons overexpressing human α-syn. Our findings support the hypothesis of a neuron-to-oligodendrocyte transfer of α-syn, a mechanism that may play a crucial role in the progression and pathogenesis of MSA.
Collapse
Affiliation(s)
- Juan F Reyes
- Neuronal Survival Unit, BMC B11, Department of Experimental Medical Science, Wallenberg Neuroscience Center, Lund University, Lund, Sweden
| | | | | | | | | | | |
Collapse
|
5
|
Smolders I, Smets I, Maier O, vandeVen M, Steels P, Ameloot M. Simvastatin interferes with process outgrowth and branching of oligodendrocytes. J Neurosci Res 2011; 88:3361-75. [PMID: 20857509 DOI: 10.1002/jnr.22490] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Statins have attracted interest as a treatment option for multiple sclerosis (MS) because of their pleiotropic antiinflammatory and immunomodulatory effects. However, contradictory results have been described when they are applied to oligodendrocytes (OLGs), the cell type predominantly affected in MS. In this study we focus on the in vitro effect of statins on process outgrowth in OLN-93 cells, a well-characterized OLG-derived cell line, and primary cultures of neonatal rat OLGs. Application of the lipophilic simvastatin, as low as 0.1-1 μM, disturbs process formation of both cell types, leading to less ramified cells. We show that both protein isoprenylation and cholesterol synthesis are required for the normal differentiation of OLGs. It is further demonstrated that the expression of 2',3'-cyclic-nucleotide-3' phosphodiesterase (CNP) and tubulin is lowered, concomitant with a reduction of membrane-bound CNP as well as tubulin. Therefore, we propose that lack of isoprenylation of CNP could help to explain the altered morphological and biochemical differentiation state of treated OLGs. Moreover, expression of specific myelin markers, such as myelin basic protein, myelin-associated glycoprotein, and myelin oligodendrocyte glycoprotein, was compromised after treatment. We conclude that simvastatin treatment has detrimental effects on OLG process outgrowth, the prior step in (re)myelination, thereby mortgaging long-term healing of MS lesions.
Collapse
Affiliation(s)
- Inge Smolders
- Biomedical Research Institute, School of Life Sciences, Hasselt University and Transnational University Limburg, Diepenbeek, Belgium
| | | | | | | | | | | |
Collapse
|
6
|
Morphological changes do not reflect biochemical and functional differentiation in OLN-93 oligodendroglial cells. J Neurosci Methods 2009; 184:1-9. [DOI: 10.1016/j.jneumeth.2009.07.004] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2009] [Revised: 07/02/2009] [Accepted: 07/03/2009] [Indexed: 01/31/2023]
|
7
|
Liao H, Huang W, Schachner M, Guan Y, Guo J, Yan J, Qin J, Bai X, Zhang L. β 1 Integrin-mediated Effects of Tenascin-R Domains EGFL and FN6-8 on Neural Stem/Progenitor Cell Proliferation and Differentiation in Vitro. J Biol Chem 2008; 283:27927-27936. [DOI: 10.1074/jbc.m804764200] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
|
8
|
van Meeteren ME, Baron W, Beermann C, Dijkstra CD, van Tol EAF. Polyunsaturated fatty acid supplementation stimulates differentiation of oligodendroglia cells. Dev Neurosci 2006; 28:196-208. [PMID: 16679766 DOI: 10.1159/000091917] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2005] [Accepted: 07/08/2005] [Indexed: 11/19/2022] Open
Abstract
Dietary polyunsaturated fatty acids (PUFAs) have been postulated as alternative supportive treatment for multiple sclerosis, since they may promote myelin repair. We set out to study the effect of supplementation with n-3 and n-6 PUFAs on OLN-93 oligodendroglia and rat primary oligodendrocyte differentiation in vitro. It appeared that OLN-93 cells actively incorporate and metabolise the supplemented PUFAs in their cell membrane. The effect of PUFAs on OLN-93 differentiation was further assessed by morphological and Western blot evaluation of markers of oligodendroglia differentiation: 2',3'-cyclic nucleotide 3'-phosphodiesterase (CNP), zonula occludens-1 (ZO-1) and myelin-associated glycoprotein (MAG). Supplementation of the OLN-93 cells with n-3 and n-6 PUFAs increased the degree of differentiation determined by morphological analysis. Moreover, CNP protein expression was significantly increased by gamma-linolenic acid (GLA, 18:3n-6) supplementation. In accordance with the OLN-93 results, studies with rat primary oligodendrocytes, a more advanced model of cell differentiation, showed GLA supplementation to promote oligodendrocyte differentiation. Following GLA supplementation, increased numbers of proteolipid protein (PLP)-positive oligodendrocytes and increased myelin sheet formation was observed during differentiation of primary oligodendrocytes. Moreover, increased CNP, and enhanced PLP and myelin basic protein expression were found after GLA administration. These studies provide support for the dietary supplementation of specific PUFAs to support oligodendrocyte differentiation and function.
Collapse
Affiliation(s)
- M E van Meeteren
- Biomedical Research Department, Numico Research B.V., Wageningen, The Netherlands
| | | | | | | | | |
Collapse
|