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Bufan B, Ćuruvija I, Blagojević V, Grujić-Milanović J, Prijić I, Radosavljević T, Samardžić J, Radosavljevic M, Janković R, Djuretić J. NMDA Receptor Antagonist Memantine Ameliorates Experimental Autoimmune Encephalomyelitis in Aged Rats. Biomedicines 2024; 12:717. [PMID: 38672073 PMCID: PMC11047843 DOI: 10.3390/biomedicines12040717] [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: 01/19/2024] [Revised: 03/15/2024] [Accepted: 03/21/2024] [Indexed: 04/28/2024] Open
Abstract
Aging is closely related to the main aspects of multiple sclerosis (MS). The average age of the MS population is increasing and the number of elderly MS patients is expected to increase. In addition to neurons, N-methyl-D-aspartate receptors (NMDARs) are also expressed on non-neuronal cells, such as immune cells. The aim of this study was to investigate the role of NMDARs in experimental autoimmune encephalomyelitis (EAE) in young and aged rats. Memantine, a non-competitive NMDAR antagonist, was administered to young and aged Dark Agouti rats from day 7 after immunization. Antagonizing NMDARs had a more favourable effect on clinical disease, reactivation, and apoptosis of CD4+ T cells in the target organ of aged EAE rats. The expression of the fractalkine receptor CX3CR1 was increased in memantine-treated rats, but to a greater extent in aged rats. Additionally, memantine increased Nrf2 and Nrf2-regulated enzymes' mRNA expression in brain tissue. The concentrations of superoxide anion radicals, malondialdehyde, and advanced oxidation protein products in brain tissue were consistent with previous results. Overall, our results suggest that NMDARs play a more important role in the pathogenesis of EAE in aged than in young rats.
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Affiliation(s)
- Biljana Bufan
- Department of Microbiology and Immunology, Faculty of Pharmacy, University of Belgrade, 11000 Belgrade, Serbia;
| | - Ivana Ćuruvija
- Department of Research and Development, Institute of Virology, Vaccines and Sera, Torlak, 11000 Belgrade, Serbia; (I.Ć.); (V.B.); (I.P.)
| | - Veljko Blagojević
- Department of Research and Development, Institute of Virology, Vaccines and Sera, Torlak, 11000 Belgrade, Serbia; (I.Ć.); (V.B.); (I.P.)
| | - Jelica Grujić-Milanović
- Institute for Medical Research, National Institute of the Republic of Serbia, Department of Cardiovascular Research, University of Belgrade, 11000 Belgrade, Serbia;
| | - Ivana Prijić
- Department of Research and Development, Institute of Virology, Vaccines and Sera, Torlak, 11000 Belgrade, Serbia; (I.Ć.); (V.B.); (I.P.)
| | - Tatjana Radosavljević
- Institute of Pathological Physiology, Faculty of Medicine, University of Belgrade, 11000 Belgrade, Serbia;
| | - Janko Samardžić
- Institute of Pharmacology, Clinical Pharmacology and Toxicology, Faculty of Medicine, University of Belgrade, 11000 Belgrade, Serbia; (J.S.); (M.R.)
| | - Milica Radosavljevic
- Institute of Pharmacology, Clinical Pharmacology and Toxicology, Faculty of Medicine, University of Belgrade, 11000 Belgrade, Serbia; (J.S.); (M.R.)
| | - Radmila Janković
- Institute of Pathology, Faculty of Medicine, University of Belgrade, 11000 Belgrade, Serbia;
| | - Jasmina Djuretić
- Department of Pathobiology, Faculty of Pharmacy, University of Belgrade, 11000 Belgrade, Serbia
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Dainauskas JJ, Vitale P, Moreno S, Marie H, Migliore M, Saudargiene A. Altered synaptic plasticity at hippocampal CA1-CA3 synapses in Alzheimer's disease: integration of amyloid precursor protein intracellular domain and amyloid beta effects into computational models. Front Comput Neurosci 2023; 17:1305169. [PMID: 38130706 PMCID: PMC10733499 DOI: 10.3389/fncom.2023.1305169] [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: 09/30/2023] [Accepted: 11/07/2023] [Indexed: 12/23/2023] Open
Abstract
Alzheimer's disease (AD) is a progressive memory loss and cognitive dysfunction brain disorder brought on by the dysfunctional amyloid precursor protein (APP) processing and clearance of APP peptides. Increased APP levels lead to the production of AD-related peptides including the amyloid APP intracellular domain (AICD) and amyloid beta (Aβ), and consequently modify the intrinsic excitability of the hippocampal CA1 pyramidal neurons, synaptic protein activity, and impair synaptic plasticity at hippocampal CA1-CA3 synapses. The goal of the present study is to build computational models that incorporate the effect of AD-related peptides on CA1 pyramidal neuron and hippocampal synaptic plasticity under the AD conditions and investigate the potential pharmacological treatments that could normalize hippocampal synaptic plasticity and learning in AD. We employ a phenomenological N-methyl-D-aspartate (NMDA) receptor-based voltage-dependent synaptic plasticity model that includes the separate receptor contributions on long-term potentiation (LTP) and long-term depression (LTD) and embed it into the a detailed compartmental model of CA1 pyramidal neuron. Modeling results show that partial blockade of Glu2NB-NMDAR-gated channel restores intrinsic excitability of a CA1 pyramidal neuron and rescues LTP in AICD and Aβ conditions. The model provides insight into the complex interactions in AD pathophysiology and suggests the conditions under which the synchronous activation of a cluster of synaptic inputs targeting the dendritic tree of CA1 pyramidal neuron leads to restored synaptic plasticity.
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Affiliation(s)
- Justinas J. Dainauskas
- Neuroscience Institute, Lithuanian University of Health Sciences, Kaunas, Lithuania
- Department of Informatics, Vytautas Magnus University, Kaunas, Lithuania
| | - Paola Vitale
- Institute of Biophysics, National Research Council, Palermo, Italy
| | - Sebastien Moreno
- Université Côte d'Azur, Centre National de la Recherche Scientifique (CNRS), Institut de Pharmacologie Moléculaire et Cellulaire (IPMC), Valbonne, France
| | - Hélène Marie
- Université Côte d'Azur, Centre National de la Recherche Scientifique (CNRS), Institut de Pharmacologie Moléculaire et Cellulaire (IPMC), Valbonne, France
| | - Michele Migliore
- Institute of Biophysics, National Research Council, Palermo, Italy
| | - Ausra Saudargiene
- Neuroscience Institute, Lithuanian University of Health Sciences, Kaunas, Lithuania
- Department of Informatics, Vytautas Magnus University, Kaunas, Lithuania
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Revol RS, Koistinen NA, Menon PK, Chicote-Gonzàlez A, Iverfeldt K, Ström AL. Alpha-secretase dependent nuclear localization of the amyloid-β precursor protein-binding protein Fe65 promotes DNA repair. Mol Cell Neurosci 2023; 127:103903. [PMID: 37918552 DOI: 10.1016/j.mcn.2023.103903] [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: 06/14/2023] [Revised: 09/29/2023] [Accepted: 10/29/2023] [Indexed: 11/04/2023] Open
Abstract
Fe65 is a brain enriched adaptor protein involved in various cellular processes, including actin cytoskeleton regulation, DNA repair and transcription. A well-studied interacting partner of Fe65 is the transmembrane amyloid-β precursor protein (APP), which can undergo regulated intramembrane proteolysis (RIP). Following β- and γ-secretase-mediated RIP, the released APP intracellular domain (AICD) together with Fe65 can translocate to the nucleus and regulate transcription. In this study, we investigated if Fe65 nuclear localization can also be regulated by different α-secretases, also known to participate in RIP of APP and other transmembrane proteins. We found that in both Phorbol 12-myristate 13-acetate and all-trans retinoic acid differentiated neuroblastoma cells a strong negative impact on Fe65 nuclear localization, equal to the effect observed upon γ-secretase inhibition, could be detected following inhibition of all three (ADAM9, ADAM10 and ADAM17) α-secretases. Moreover, using the comet assay and analysis of Fe65 dependent DNA repair associated posttranslational modifications of histones, we could show that inhibition of α-secretase-mediated Fe65 nuclear translocation resulted in impaired capacity of the cells to repair DNA damage. Taken together this suggests that α-secretase processing of APP and/or other Fe65 interacting transmembrane proteins play an important role in regulating Fe65 nuclear translocation and DNA repair.
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Affiliation(s)
- Rebecca S Revol
- Stockholm University, Department of Biochemistry and Biophysics, 106 91 Stockholm, Sweden
| | - Niina A Koistinen
- Stockholm University, Department of Biochemistry and Biophysics, 106 91 Stockholm, Sweden
| | - Preeti K Menon
- Stockholm University, Department of Biochemistry and Biophysics, 106 91 Stockholm, Sweden
| | | | - Kerstin Iverfeldt
- Stockholm University, Department of Biochemistry and Biophysics, 106 91 Stockholm, Sweden
| | - Anna-Lena Ström
- Stockholm University, Department of Biochemistry and Biophysics, 106 91 Stockholm, Sweden.
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König S, Schmidt N, Bechberger K, Morris S, Priego M, Zaky H, Song Y, Pielage J, Brunholz S, Brady ST, Kins S, Morfini G. Axon-Autonomous Effects of the Amyloid Precursor Protein Intracellular Domain (AICD) on Kinase Signaling and Fast Axonal Transport. Cells 2023; 12:2403. [PMID: 37830617 PMCID: PMC10572015 DOI: 10.3390/cells12192403] [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: 08/22/2023] [Revised: 09/26/2023] [Accepted: 09/27/2023] [Indexed: 10/14/2023] Open
Abstract
The amyloid precursor protein (APP) is a key molecular component of Alzheimer's disease (AD) pathogenesis. Proteolytic APP processing generates various cleavage products, including extracellular amyloid beta (Aβ) and the cytoplasmic APP intracellular domain (AICD). Although the role of AICD in the activation of kinase signaling pathways is well established in the context of full-length APP, little is known about intracellular effects of the AICD fragment, particularly within discrete neuronal compartments. Deficits in fast axonal transport (FAT) and axonopathy documented in AD-affected neurons prompted us to evaluate potential axon-autonomous effects of the AICD fragment for the first time. Vesicle motility assays using the isolated squid axoplasm preparation revealed inhibition of FAT by AICD. Biochemical experiments linked this effect to aberrant activation of selected axonal kinases and heightened phosphorylation of the anterograde motor protein conventional kinesin, consistent with precedents showing phosphorylation-dependent regulation of motors proteins powering FAT. Pharmacological inhibitors of these kinases alleviated the AICD inhibitory effect on FAT. Deletion experiments indicated this effect requires a sequence encompassing the NPTY motif in AICD and interacting axonal proteins containing a phosphotyrosine-binding domain. Collectively, these results provide a proof of principle for axon-specific effects of AICD, further suggesting a potential mechanistic framework linking alterations in APP processing, FAT deficits, and axonal pathology in AD.
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Affiliation(s)
- Svenja König
- Department for Human Biology and Human Genetics, University of Kaiserslautern-Landau, 67663 Kaiserslautern, Germany (K.B.); (S.K.)
| | - Nadine Schmidt
- Department for Human Biology and Human Genetics, University of Kaiserslautern-Landau, 67663 Kaiserslautern, Germany (K.B.); (S.K.)
| | - Karin Bechberger
- Department for Human Biology and Human Genetics, University of Kaiserslautern-Landau, 67663 Kaiserslautern, Germany (K.B.); (S.K.)
| | - Sarah Morris
- Department of Anatomy and Cell Biology, University of Illinois at Chicago, Chicago, IL 60612, USA (S.T.B.)
- Marine Biological Laboratory, Woods Hole, MA 02543, USA
| | - Mercedes Priego
- Department of Anatomy and Cell Biology, University of Illinois at Chicago, Chicago, IL 60612, USA (S.T.B.)
| | - Hannah Zaky
- Department of Anatomy and Cell Biology, University of Illinois at Chicago, Chicago, IL 60612, USA (S.T.B.)
| | - Yuyu Song
- Marine Biological Laboratory, Woods Hole, MA 02543, USA
- Department of Neurology, Harvard Medical School and Massachusetts General Hospital, Boston, MA 02129, USA
| | - Jan Pielage
- Department of Zoology, University of Kaiserslautern-Landau, 67663 Kaiserslautern, Germany;
| | - Silke Brunholz
- Department for Human Biology and Human Genetics, University of Kaiserslautern-Landau, 67663 Kaiserslautern, Germany (K.B.); (S.K.)
| | - Scott T. Brady
- Department of Anatomy and Cell Biology, University of Illinois at Chicago, Chicago, IL 60612, USA (S.T.B.)
- Marine Biological Laboratory, Woods Hole, MA 02543, USA
| | - Stefan Kins
- Department for Human Biology and Human Genetics, University of Kaiserslautern-Landau, 67663 Kaiserslautern, Germany (K.B.); (S.K.)
| | - Gerardo Morfini
- Department of Anatomy and Cell Biology, University of Illinois at Chicago, Chicago, IL 60612, USA (S.T.B.)
- Marine Biological Laboratory, Woods Hole, MA 02543, USA
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Dunot J, Ribera A, Pousinha PA, Marie H. Spatiotemporal insights of APP function. Curr Opin Neurobiol 2023; 82:102754. [PMID: 37542943 DOI: 10.1016/j.conb.2023.102754] [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: 04/17/2023] [Revised: 06/29/2023] [Accepted: 07/07/2023] [Indexed: 08/07/2023]
Abstract
The amyloid-β precursor protein (APP) is a ubiquitous protein with a strong genetic link to Alzheimer's disease. Although the protein was identified more than forty years ago, its physiological function is still unclear. In recent years, advances in technology have allowed researchers to tackle APP functions in greater depth. In this review, we discuss the latest research pertaining to APP functions from development to aging. We also address the different roles that APP could play in specific types of cells of the central and peripheral nervous system and in other organs of the body. We argue that, until we fully identify the functions of APP in space and time, we will be missing important pieces of the puzzle to solve its pathological implication in Alzheimer's disease and beyond.
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Affiliation(s)
- Jade Dunot
- Université Côte d'Azur, CNRS, Institut de Pharmacologie Moléculaire et Cellulaire, UMR7275, 06560, Valbonne, France. https://twitter.com/DunotJade
| | - Aurore Ribera
- Université Côte d'Azur, CNRS, Institut de Pharmacologie Moléculaire et Cellulaire, UMR7275, 06560, Valbonne, France. https://twitter.com/aurore_et_al_
| | - Paula A Pousinha
- Université Côte d'Azur, CNRS, Institut de Pharmacologie Moléculaire et Cellulaire, UMR7275, 06560, Valbonne, France.
| | - Hélène Marie
- Université Côte d'Azur, CNRS, Institut de Pharmacologie Moléculaire et Cellulaire, UMR7275, 06560, Valbonne, France.
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