1
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Kraemer RR, Kraemer BR. The effects of peripheral hormone responses to exercise on adult hippocampal neurogenesis. Front Endocrinol (Lausanne) 2023; 14:1202349. [PMID: 38084331 PMCID: PMC10710532 DOI: 10.3389/fendo.2023.1202349] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/08/2023] [Accepted: 11/02/2023] [Indexed: 12/18/2023] Open
Abstract
Over the last decade, a considerable amount of new data have revealed the beneficial effects of exercise on hippocampal neurogenesis and the maintenance or improvement of cognitive function. Investigations with animal models, as well as human studies, have yielded novel understanding of the mechanisms through which endocrine signaling can stimulate neurogenesis, as well as the effects of exercise on acute and/or chronic levels of these circulating hormones. Considering the effects of aging on the decline of specific endocrine factors that affect brain health, insights in this area of research are particularly important. In this review, we discuss how different forms of exercise influence the peripheral production of specific endocrine factors, with particular emphasis on brain-derived neurotrophic factor, growth hormone, insulin-like growth factor-1, ghrelin, estrogen, testosterone, irisin, vascular endothelial growth factor, erythropoietin, and cortisol. We also describe mechanisms through which these endocrine responses to exercise induce cellular changes that increase hippocampal neurogenesis and improve cognitive function.
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Affiliation(s)
- Robert R. Kraemer
- Department of Kinesiology and Health Studies, Southeastern Louisiana University, Hammond, LA, United States
| | - Bradley R. Kraemer
- Department of Biological Sciences, University of Alabama in Huntsville, Huntsville, AL, United States
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2
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Comaposada-Baró R, Benito-Martínez A, Escribano-Saiz JJ, Franco ML, Ceccarelli L, Calatayud-Baselga I, Mira H, Vilar M. Cholinergic neurodegeneration and cholesterol metabolism dysregulation by constitutive p75 NTR signaling in the p75 exonIII-KO mice. Front Mol Neurosci 2023; 16:1237458. [PMID: 37900943 PMCID: PMC10611523 DOI: 10.3389/fnmol.2023.1237458] [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: 06/09/2023] [Accepted: 09/28/2023] [Indexed: 10/31/2023] Open
Abstract
Degeneration of basal forebrain cholinergic neurons (BFCNs) is a hallmark of Alzheimer's disease (AD). However, few mouse models of AD recapitulate the neurodegeneration of the cholinergic system. The p75 neurotrophin receptor, p75NTR, has been associated with the degeneration of BFCNs in AD. The senescence-accelerated mouse prone number 8 (SAMP8) is a well-accepted model of accelerated and pathological aging. To gain a better understanding of the role of p75NTR in the basal forebrain during aging, we generated a new mouse line, the SAMP8-p75exonIII-/-. Deletion of p75NTR in the SAMP8 background induces an increase in the number of BFCNs at birth, followed by a rapid decline during aging compared to the C57/BL6 background. This decrease in the number of BFCNs correlates with a worsening in the Y-maze memory test at 6 months in the SAMP8-p75exonIII-/-. We found that SAMP8-p75exonIII-/- and C57/BL6-p75exonIII-/- mice expressed constitutively a short isoform of p75NTR that correlates with an upregulation of the protein levels of SREBP2 and its targets, HMGCR and LDLR, in the BF of both SAMP8-p75exonIII-/- and C57/BL6-p75exonIII-/- mice. As the neurodegeneration of the cholinergic system and the dysregulation of cholesterol metabolism are implicated in AD, we postulate that the generated SAMP8-p75exonIII-/- mouse strain might constitute a good model to study long-term cholinergic neurodegeneration in the CNS. In addition, our results support the role of p75NTR signaling in cholesterol biosynthesis regulation.
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Affiliation(s)
- Raquel Comaposada-Baró
- Molecular Basis of Neurodegeneration Unit of the Instituto de Biomedicina de Valencia CSIC, Valencia, Spain
| | - Andrea Benito-Martínez
- Molecular Basis of Neurodegeneration Unit of the Instituto de Biomedicina de Valencia CSIC, Valencia, Spain
| | - Juan Julian Escribano-Saiz
- Molecular Basis of Neurodegeneration Unit of the Instituto de Biomedicina de Valencia CSIC, Valencia, Spain
| | - María Luisa Franco
- Molecular Basis of Neurodegeneration Unit of the Instituto de Biomedicina de Valencia CSIC, Valencia, Spain
| | - Lorenzo Ceccarelli
- Molecular Basis of Neurodegeneration Unit of the Instituto de Biomedicina de Valencia CSIC, Valencia, Spain
| | | | - Helena Mira
- Stem Cells and Aging Units of the Instituto de Biomedicina de Valencia CSIC, Valencia, Spain
| | - Marçal Vilar
- Molecular Basis of Neurodegeneration Unit of the Instituto de Biomedicina de Valencia CSIC, Valencia, Spain
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3
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Papadopoulou MA, Rogdakis T, Charou D, Peteinareli M, Ntarntani K, Gravanis A, Chanoumidou K, Charalampopoulos I. Neurotrophin Analog ENT-A044 Activates the p75 Neurotrophin Receptor, Regulating Neuronal Survival in a Cell Context-Dependent Manner. Int J Mol Sci 2023; 24:11683. [PMID: 37511441 PMCID: PMC10380564 DOI: 10.3390/ijms241411683] [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: 06/21/2023] [Revised: 07/16/2023] [Accepted: 07/18/2023] [Indexed: 07/30/2023] Open
Abstract
Neuronal cell fate is predominantly controlled based on the effects of growth factors, such as neurotrophins, and the activation of a variety of signaling pathways acting through neurotrophin receptors, namely Trk and p75 (p75NTR). Despite their beneficial effects on brain function, their therapeutic use is compromised due to their polypeptidic nature and blood-brain-barrier impermeability. To overcome these limitations, our previous studies have proven that DHEA-derived synthetic analogs can act like neurotrophins, as they lack endocrine side effects. The present study focuses on the biological characterization of a newly synthesized analog, ENT-A044, and its role in inducing cell-specific functions of p75NTR. We show that ENT-A044 can induce cell death and phosphorylation of JNK protein by activating p75NTR. Additionally, ENT-A044 can induce the phosphorylation of TrkB receptor, indicating that our molecule can activate both neurotrophin receptors, enabling the protection of neuronal populations that express both receptors. Furthermore, the present study demonstrates, for the first time, the expression of p75NTR in human-induced Pluripotent Stem Cells-derived Neural Progenitor Cells (hiPSC-derived NPCs) and receptor-dependent cell death induced via ENT-A044 treatment. In conclusion, ENT-A044 is proposed as a lead molecule for the development of novel pharmacological agents, providing new therapeutic approaches and research tools, by controlling p75NTR actions.
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Affiliation(s)
- Maria Anna Papadopoulou
- Department of Pharmacology, Medical School, University of Crete, 71003 Heraklion, Greece
- Institute of Molecular Biology & Biotechnology (IMBB), Foundation for Research and Technology-Hellas (FORTH), 70013 Heraklion, Greece
| | - Thanasis Rogdakis
- Department of Pharmacology, Medical School, University of Crete, 71003 Heraklion, Greece
- Institute of Molecular Biology & Biotechnology (IMBB), Foundation for Research and Technology-Hellas (FORTH), 70013 Heraklion, Greece
| | - Despoina Charou
- Department of Pharmacology, Medical School, University of Crete, 71003 Heraklion, Greece
- Institute of Molecular Biology & Biotechnology (IMBB), Foundation for Research and Technology-Hellas (FORTH), 70013 Heraklion, Greece
| | - Maria Peteinareli
- Department of Pharmacology, Medical School, University of Crete, 71003 Heraklion, Greece
- Institute of Molecular Biology & Biotechnology (IMBB), Foundation for Research and Technology-Hellas (FORTH), 70013 Heraklion, Greece
| | - Katerina Ntarntani
- Department of Pharmacology, Medical School, University of Crete, 71003 Heraklion, Greece
- Institute of Molecular Biology & Biotechnology (IMBB), Foundation for Research and Technology-Hellas (FORTH), 70013 Heraklion, Greece
| | - Achille Gravanis
- Department of Pharmacology, Medical School, University of Crete, 71003 Heraklion, Greece
- Institute of Molecular Biology & Biotechnology (IMBB), Foundation for Research and Technology-Hellas (FORTH), 70013 Heraklion, Greece
| | - Konstantina Chanoumidou
- Department of Pharmacology, Medical School, University of Crete, 71003 Heraklion, Greece
- Institute of Molecular Biology & Biotechnology (IMBB), Foundation for Research and Technology-Hellas (FORTH), 70013 Heraklion, Greece
| | - Ioannis Charalampopoulos
- Department of Pharmacology, Medical School, University of Crete, 71003 Heraklion, Greece
- Institute of Molecular Biology & Biotechnology (IMBB), Foundation for Research and Technology-Hellas (FORTH), 70013 Heraklion, Greece
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4
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Lopes-Rodrigues V, Boxy P, Sim E, Park DI, Habeck M, Carbonell J, Andersson A, Fernández-Suárez D, Nissen P, Nykjær A, Kisiswa L. AraC interacts with p75 NTR transmembrane domain to induce cell death of mature neurons. Cell Death Dis 2023; 14:440. [PMID: 37460457 DOI: 10.1038/s41419-023-05979-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2023] [Revised: 06/29/2023] [Accepted: 07/11/2023] [Indexed: 07/20/2023]
Abstract
Cytosine arabinoside (AraC) is one of the main therapeutic treatments for several types of cancer, including acute myeloid leukaemia. However, after a high-dose AraC chemotherapy regime, patients develop severe neurotoxicity and cell death in the central nervous system leading to cerebellar ataxia, dysarthria, nystagmus, somnolence and drowsiness. AraC induces apoptosis in dividing cells. However, the mechanism by which it leads to neurite degeneration and cell death in mature neurons remains unclear. We hypothesise that the upregulation of the death receptor p75NTR is responsible for AraC-mediated neurodegeneration and cell death in leukaemia patients undergoing AraC treatment. To determine the role of AraC-p75NTR signalling in the cell death of mature neurons, we used mature cerebellar granule neurons' primary cultures from p75NTR knockout and p75NTRCys259 mice. Evaluation of neurite degeneration, cell death and p75NTR signalling was done by immunohistochemistry and immunoblotting. To assess the interaction between AraC and p75NTR, we performed cellular thermal shift and AraTM assays as well as Homo-FRET anisotropy imaging. We show that AraC induces neurite degeneration and programmed cell death of mature cerebellar granule neurons in a p75NTR-dependent manner. Mechanistically, Proline 252 and Cysteine 256 residues facilitate AraC interaction with the transmembrane domain of p75NTR resulting in uncoupling of p75NTR from the NFκB survival pathway. This, in turn, exacerbates the activation of the cell death/JNK pathway by recruitment of TRAF6 to p75NTR. Our findings identify p75NTR as a novel molecular target to develop treatments for counteract AraC-mediated cell death of mature neurons.
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Affiliation(s)
- Vanessa Lopes-Rodrigues
- Department of Physiology and Life Sciences Institute, National University of Singapore, Singapore, 117597, Singapore
| | - Pia Boxy
- Department of Biomedicine, Aarhus University, Aarhus, Denmark
- Danish Research Institute of Translational Neuroscience (DANDRITE)-Nordic EMBL Partnership for Molecular Medicine, Aarhus University, Aarhus, Denmark
- The Danish National Research Foundation Center, PROMEMO, Aarhus University, Aarhus, Denmark
| | - Eunice Sim
- Department of Physiology and Life Sciences Institute, National University of Singapore, Singapore, 117597, Singapore
| | - Dong Ik Park
- Department of Biomedicine, Aarhus University, Aarhus, Denmark
- Danish Research Institute of Translational Neuroscience (DANDRITE)-Nordic EMBL Partnership for Molecular Medicine, Aarhus University, Aarhus, Denmark
- The Danish National Research Foundation Center, PROMEMO, Aarhus University, Aarhus, Denmark
| | - Michael Habeck
- Danish Research Institute of Translational Neuroscience (DANDRITE)-Nordic EMBL Partnership for Molecular Medicine, Aarhus University, Aarhus, Denmark
- The Danish National Research Foundation Center, PROMEMO, Aarhus University, Aarhus, Denmark
- Department of Molecular Biology and Genetics, Aarhus University, Aarhus, Denmark
| | - Josep Carbonell
- Department of Neuroscience, Karolinska Institute, Stockholm, S-17177, Sweden
| | - Annika Andersson
- Department of Neuroscience, Karolinska Institute, Stockholm, S-17177, Sweden
| | | | - Poul Nissen
- Danish Research Institute of Translational Neuroscience (DANDRITE)-Nordic EMBL Partnership for Molecular Medicine, Aarhus University, Aarhus, Denmark
- The Danish National Research Foundation Center, PROMEMO, Aarhus University, Aarhus, Denmark
- Department of Molecular Biology and Genetics, Aarhus University, Aarhus, Denmark
| | - Anders Nykjær
- Department of Biomedicine, Aarhus University, Aarhus, Denmark
- Danish Research Institute of Translational Neuroscience (DANDRITE)-Nordic EMBL Partnership for Molecular Medicine, Aarhus University, Aarhus, Denmark
- The Danish National Research Foundation Center, PROMEMO, Aarhus University, Aarhus, Denmark
| | - Lilian Kisiswa
- Department of Biomedicine, Aarhus University, Aarhus, Denmark.
- Danish Research Institute of Translational Neuroscience (DANDRITE)-Nordic EMBL Partnership for Molecular Medicine, Aarhus University, Aarhus, Denmark.
- The Danish National Research Foundation Center, PROMEMO, Aarhus University, Aarhus, Denmark.
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5
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Esvald EE, Tuvikene J, Kiir CS, Avarlaid A, Tamberg L, Sirp A, Shubina A, Cabrera-Cabrera F, Pihlak A, Koppel I, Palm K, Timmusk T. Revisiting the expression of BDNF and its receptors in mammalian development. Front Mol Neurosci 2023; 16:1182499. [PMID: 37426074 PMCID: PMC10325033 DOI: 10.3389/fnmol.2023.1182499] [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: 03/08/2023] [Accepted: 05/22/2023] [Indexed: 07/11/2023] Open
Abstract
Brain-derived neurotrophic factor (BDNF) promotes the survival and functioning of neurons in the central nervous system and contributes to proper functioning of many non-neural tissues. Although the regulation and role of BDNF have been extensively studied, a rigorous analysis of the expression dynamics of BDNF and its receptors TrkB and p75NTR is lacking. Here, we have analyzed more than 3,600 samples from 18 published RNA sequencing datasets, and used over 17,000 samples from GTEx, and ~ 180 samples from BrainSpan database, to describe the expression of BDNF in the developing mammalian neural and non-neural tissues. We show evolutionarily conserved dynamics and expression patterns of BDNF mRNA and non-conserved alternative 5' exon usage. Finally, we also show increasing BDNF protein levels during murine brain development and BDNF protein expression in several non-neural tissues. In parallel, we describe the spatiotemporal expression pattern of BDNF receptors TrkB and p75NTR in both murines and humans. Collectively, our in-depth analysis of the expression of BDNF and its receptors gives insight into the regulation and signaling of BDNF in the whole organism throughout life.
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Affiliation(s)
- Eli-Eelika Esvald
- Department of Chemistry and Biotechnology, Tallinn University of Technology, Tallinn, Estonia
- Protobios LLC, Tallinn, Estonia
| | - Jürgen Tuvikene
- Department of Chemistry and Biotechnology, Tallinn University of Technology, Tallinn, Estonia
- Protobios LLC, Tallinn, Estonia
- dxlabs LLC, Tallinn, Estonia
| | - Carl Sander Kiir
- Department of Chemistry and Biotechnology, Tallinn University of Technology, Tallinn, Estonia
| | - Annela Avarlaid
- Department of Chemistry and Biotechnology, Tallinn University of Technology, Tallinn, Estonia
| | - Laura Tamberg
- Department of Chemistry and Biotechnology, Tallinn University of Technology, Tallinn, Estonia
| | - Alex Sirp
- Department of Chemistry and Biotechnology, Tallinn University of Technology, Tallinn, Estonia
| | - Anastassia Shubina
- Department of Chemistry and Biotechnology, Tallinn University of Technology, Tallinn, Estonia
| | | | | | - Indrek Koppel
- Department of Chemistry and Biotechnology, Tallinn University of Technology, Tallinn, Estonia
| | | | - Tõnis Timmusk
- Department of Chemistry and Biotechnology, Tallinn University of Technology, Tallinn, Estonia
- Protobios LLC, Tallinn, Estonia
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6
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Moya-Alvarado G, Tiburcio-Felix R, Ibáñez MR, Aguirre-Soto AA, Guerra MV, Wu C, Mobley WC, Perlson E, Bronfman FC. BDNF/TrkB signaling endosomes in axons coordinate CREB/mTOR activation and protein synthesis in the cell body to induce dendritic growth in cortical neurons. eLife 2023; 12:77455. [PMID: 36826992 PMCID: PMC9977295 DOI: 10.7554/elife.77455] [Citation(s) in RCA: 17] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Accepted: 02/12/2023] [Indexed: 02/25/2023] Open
Abstract
Brain-derived neurotrophic factor (BDNF) and its receptors tropomyosin kinase receptor B (TrkB) and the p75 neurotrophin receptor (p75) are the primary regulators of dendritic growth in the CNS. After being bound by BDNF, TrkB and p75 are endocytosed into endosomes and continue signaling within the cell soma, dendrites, and axons. We studied the functional role of BDNF axonal signaling in cortical neurons derived from different transgenic mice using compartmentalized cultures in microfluidic devices. We found that axonal BDNF increased dendritic growth from the neuronal cell body in a cAMP response element-binding protein (CREB)-dependent manner. These effects were dependent on axonal TrkB but not p75 activity. Dynein-dependent BDNF-TrkB-containing endosome transport was required for long-distance induction of dendritic growth. Axonal signaling endosomes increased CREB and mTOR kinase activity in the cell body, and this increase in the activity of both proteins was required for general protein translation and the expression of Arc, a plasticity-associated gene, indicating a role for BDNF-TrkB axonal signaling endosomes in coordinating the transcription and translation of genes whose products contribute to learning and memory regulation.
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Affiliation(s)
- Guillermo Moya-Alvarado
- Department of Physiology, Faculty of Biological Sciences and Center for Aging and Regeneration), Pontificia Universidad Católica de Chile. Av. Libertador Bernardo O´HigginsSantiagoChile
| | - Reynaldo Tiburcio-Felix
- NeuroSignaling Lab (NESLab), Center for Aging and Regeneration (CARE-UC), Institute of Biomedical Sciences (ICB), Faculty of Medicine, and Faculty of Life Sciences, Universidad Andrés BelloSantiagoChile
| | - María Raquel Ibáñez
- NeuroSignaling Lab (NESLab), Center for Aging and Regeneration (CARE-UC), Institute of Biomedical Sciences (ICB), Faculty of Medicine, and Faculty of Life Sciences, Universidad Andrés BelloSantiagoChile
| | - Alejandro A Aguirre-Soto
- NeuroSignaling Lab (NESLab), Center for Aging and Regeneration (CARE-UC), Institute of Biomedical Sciences (ICB), Faculty of Medicine, and Faculty of Life Sciences, Universidad Andrés BelloSantiagoChile
| | - Miguel V Guerra
- Department of Physiology, Faculty of Biological Sciences and Center for Aging and Regeneration), Pontificia Universidad Católica de Chile. Av. Libertador Bernardo O´HigginsSantiagoChile,NeuroSignaling Lab (NESLab), Center for Aging and Regeneration (CARE-UC), Institute of Biomedical Sciences (ICB), Faculty of Medicine, and Faculty of Life Sciences, Universidad Andrés BelloSantiagoChile
| | - Chengbiao Wu
- Department of Neurosciences, University of California, San DiegoSan DiegoUnited States
| | - William C Mobley
- Department of Neurosciences, University of California, San DiegoSan DiegoUnited States
| | - Eran Perlson
- Department of Physiology and Pharmacology, Sackler Faculty of Medicine; Sagol School of Neuroscience, Tel Aviv UniversityTel AvivIsrael
| | - Francisca C Bronfman
- NeuroSignaling Lab (NESLab), Center for Aging and Regeneration (CARE-UC), Institute of Biomedical Sciences (ICB), Faculty of Medicine, and Faculty of Life Sciences, Universidad Andrés BelloSantiagoChile
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7
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Morano NC, Smith RS, Danelon V, Schreiner R, Patel U, Herrera NG, Smith C, Olson SM, Laerke MK, Celikgil A, Garforth SJ, Garrett-Thomson SC, Lee FS, Hempstead BL, Almo SC. Human immunomodulatory ligand B7-1 mediates synaptic remodeling via the p75 neurotrophin receptor. J Clin Invest 2022; 132:e157002. [PMID: 36107635 PMCID: PMC9663165 DOI: 10.1172/jci157002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Accepted: 09/13/2022] [Indexed: 12/30/2023] Open
Abstract
Cell surface receptors, ligands, and adhesion molecules underlie development, circuit formation, and synaptic function of the central nervous system and represent important therapeutic targets for many neuropathologies. The functional contributions of interactions between cell surface proteins of neurons and nonneuronal cells have not been fully addressed. Using an unbiased protein-protein interaction screen, we showed that the human immunomodulatory ligand B7-1 (hB7-1) interacts with the p75 neurotrophin receptor (p75NTR) and that the B7-1:p75NTR interaction is a recent evolutionary adaptation present in humans and other primates, but absent in mice, rats, and other lower mammals. The surface of hB7-1 that engages p75NTR overlaps with the hB7-1 surface involved in CTLA-4/CD28 recognition, and these molecules directly compete for binding to p75NTR. Soluble or membrane-bound hB7-1 altered dendritic morphology of cultured hippocampal neurons, with loss of the postsynaptic protein PSD95 in a p75NTR-dependent manner. Abatacept, an FDA-approved therapeutic (CTLA-4-hFc fusion) inhibited these processes. In vivo injection of hB7-1 into the murine subiculum, a hippocampal region affected in Alzheimer's disease, resulted in p75NTR-dependent pruning of dendritic spines. Here, we report the biochemical interaction between B7-1 and p75NTR, describe biological effects on neuronal morphology, and identify a therapeutic opportunity for treatment of neuroinflammatory diseases.
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Affiliation(s)
- Nicholas C. Morano
- Department of Biochemistry, Albert Einstein College of Medicine, New York, New York, USA
- Zuckerman Mind Brain Behavior Institute, Columbia University, New York, New York, USA
| | - Roshelle S. Smith
- Department of Medicine, Weill Cornell Graduate School of Medical Sciences, New York, New York, USA
| | - Victor Danelon
- Department of Medicine, Weill Cornell Graduate School of Medical Sciences, New York, New York, USA
| | - Ryan Schreiner
- Division of Regenerative Medicine, Hartman Institute for Therapeutic Organ Regeneration, Ansary Stem Cell Institute, Department of Medicine, Weill Cornell Medicine, New York, New York, USA
| | - Uttsav Patel
- Department of Biochemistry, Albert Einstein College of Medicine, New York, New York, USA
| | - Natalia G. Herrera
- Department of Biochemistry, Albert Einstein College of Medicine, New York, New York, USA
| | - Carla Smith
- Department of Biochemistry, Albert Einstein College of Medicine, New York, New York, USA
| | - Steven M. Olson
- Department of Computer Science, Georgia Institute of Technology, Atlanta, Georgia, USA
| | - Michelle K. Laerke
- Department of Medicine, Weill Cornell Graduate School of Medical Sciences, New York, New York, USA
| | - Alev Celikgil
- Department of Biochemistry, Albert Einstein College of Medicine, New York, New York, USA
| | - Scott J. Garforth
- Department of Biochemistry, Albert Einstein College of Medicine, New York, New York, USA
| | | | - Francis S. Lee
- Department of Psychiatry, Weill Cornell Medicine, New York, New York, USA
| | - Barbara L. Hempstead
- Department of Medicine, Weill Cornell Graduate School of Medical Sciences, New York, New York, USA
| | - Steven C. Almo
- Department of Biochemistry, Albert Einstein College of Medicine, New York, New York, USA
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8
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Hu G, Zhang M, Wang Y, Yu M, Zhou Y. Potential of Heterogeneous Compounds as Antidepressants: A Narrative Review. Int J Mol Sci 2022; 23:ijms232213776. [PMID: 36430254 PMCID: PMC9692659 DOI: 10.3390/ijms232213776] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Revised: 10/30/2022] [Accepted: 11/05/2022] [Indexed: 11/11/2022] Open
Abstract
Depression is a globally widespread disorder caused by a complicated interplay of social, psychological, and biological factors. Approximately 280 million people are suffering from depression worldwide. Traditional frontline antidepressants targeting monoamine neurotransmitters show unsatisfactory effects. The development and application of novel antidepressants for dissimilar targets are on the agenda. This review characterizes the antidepressant effects of multiple endogenous compounds and/or their targets to provide new insight into the working mechanism of antidepressants. We also discuss perspectives and challenges for the generation of novel antidepressants.
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Affiliation(s)
- Gonghui Hu
- Department of Rehabilitation Medicine, Affiliated Hospital of Qingdao University, Qingdao 266000, China
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Qingdao University, Qingdao 266071, China
- Institute of Brain Sciences and Related Disorders, Qingdao University, Qingdao 266071, China
| | - Meng Zhang
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Qingdao University, Qingdao 266071, China
- Institute of Brain Sciences and Related Disorders, Qingdao University, Qingdao 266071, China
| | - Yuyang Wang
- Department of Rehabilitation Medicine, Affiliated Hospital of Qingdao University, Qingdao 266000, China
| | - Ming Yu
- Neuroscience and Neurorehabilitation Institute, University of Health and Rehabilitation Sciences, Qingdao 266000, China
| | - Yu Zhou
- Department of Rehabilitation Medicine, Affiliated Hospital of Qingdao University, Qingdao 266000, China
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Qingdao University, Qingdao 266071, China
- Institute of Brain Sciences and Related Disorders, Qingdao University, Qingdao 266071, China
- Neuroscience and Neurorehabilitation Institute, University of Health and Rehabilitation Sciences, Qingdao 266000, China
- Correspondence:
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9
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NGFR Gene and Single Nucleotide Polymorphisms, rs2072446 and rs11466162, Playing Roles in Psychiatric Disorders. Brain Sci 2022; 12:brainsci12101372. [PMID: 36291307 PMCID: PMC9599857 DOI: 10.3390/brainsci12101372] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Revised: 09/25/2022] [Accepted: 10/03/2022] [Indexed: 11/17/2022] Open
Abstract
Psychiatric disorders are a class of complex disorders characterized by brain dysfunction with varying degrees of impairment in cognition, emotion, consciousness and behavior, which has become a serious public health issue. The NGFR gene encodes the p75 neurotrophin receptor, which regulates neuronal growth, survival and plasticity, and was reported to be associated with depression, schizophrenia and antidepressant efficacy in human patient and animal studies. In this study, we investigated its association with schizophrenia and major depression and its role in the behavioral phenotype of adult mice. Four NGFR SNPs were detected based on a study among 1010 schizophrenia patients, 610 patients with major depressive disorders (MDD) and 1034 normal controls, respectively. We then knocked down the expression of NGFR protein in the hippocampal dentate gyrus of the mouse brain by injection of shRNA lentivirus to further investigate its behavioral effect in mice. We found significant associations of s2072446 and rs11466162 for schizophrenia. Ngfr knockdown mice showed social and behavioral abnormalities, suggesting that it is linked to the etiology of neuropsychiatric disorders. We found significant associations between NGFR and schizophrenia and that Ngfr may contribute to the social behavior of adult mice in the functional study, which provided meaningful clues to the pathogenesis of psychiatric disorders.
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10
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The Rab11-regulated endocytic pathway and BDNF/TrkB signaling: Roles in plasticity changes and neurodegenerative diseases. Neurobiol Dis 2022; 171:105796. [PMID: 35728773 DOI: 10.1016/j.nbd.2022.105796] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2021] [Revised: 05/10/2022] [Accepted: 06/14/2022] [Indexed: 02/08/2023] Open
Abstract
Neurons are highly polarized cells that rely on the intracellular transport of organelles. This process is regulated by molecular motors such as dynein and kinesins and the Rab family of monomeric GTPases that together help move cargo along microtubules in dendrites, somas, and axons. Rab5-Rab11 GTPases regulate receptor trafficking along early-recycling endosomes, which is a process that determines the intracellular signaling output of different signaling pathways, including those triggered by BDNF binding to its tyrosine kinase receptor TrkB. BDNF is a well-recognized neurotrophic factor that regulates experience-dependent plasticity in different circuits in the brain. The internalization of the BDNF/TrkB complex results in signaling endosomes that allow local signaling in dendrites and presynaptic terminals, nuclear signaling in somas and dynein-mediated long-distance signaling from axons to cell bodies. In this review, we briefly discuss the organization of the endocytic pathway and how Rab11-recycling endosomes interact with other endomembrane systems. We further expand upon the roles of the Rab11-recycling pathway in neuronal plasticity. Then, we discuss the BDNF/TrkB signaling pathways and their functional relationships with the postendocytic trafficking of BDNF, including axonal transport, emphasizing the role of BDNF signaling endosomes, particularly Rab5-Rab11 endosomes, in neuronal plasticity. Finally, we discuss the evidence indicating that the dysfunction of the early-recycling pathway impairs BDNF signaling, contributing to several neurodegenerative diseases.
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Leopold AV, Thankachan S, Yang C, Gerashchenko D, Verkhusha VV. A general approach for engineering RTKs optically controlled with far-red light. Nat Methods 2022; 19:871-880. [PMID: 35681062 DOI: 10.1038/s41592-022-01517-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2021] [Accepted: 05/06/2022] [Indexed: 11/09/2022]
Abstract
Regulation of receptor tyrosine kinase (RTK) activity is necessary for studying cell signaling pathways in health and disease. We developed a generalized approach for engineering RTKs optically controlled with far-red light. We targeted the bacterial phytochrome DrBphP to the cell surface and allowed its light-induced conformational changes to be transmitted across the plasma membrane via transmembrane helices to intracellular RTK domains. Systematic optimization of these constructs has resulted in optically regulated epidermal growth factor receptor, HER2, TrkA, TrkB, FGFR1, IR1, cKIT and cMet, named eDrRTKs. eDrRTKs induced downstream signaling in mammalian cells in tens of seconds. The ability to activate eDrRTKs with far-red light enabled spectral multiplexing with fluorescent probes operating in a shorter spectral range, allowing for all-optical assays. We validated eDrTrkB performance in mice and found that minimally invasive stimulation in the neocortex with penetrating via skull far-red light-induced neural activity, early immediate gene expression and affected sleep patterns.
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Affiliation(s)
- Anna V Leopold
- Medicum, Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | | | - Chun Yang
- Department of Psychiatry, Harvard Medical School, West Roxbury, MA, USA
| | | | - Vladislav V Verkhusha
- Medicum, Faculty of Medicine, University of Helsinki, Helsinki, Finland. .,Department of Genetics and Gruss-Lipper Biophotonics Center, Albert Einstein College of Medicine, Bronx, NY, USA.
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12
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Brain-Derived Neurotropic Factor in Neurodegenerative Disorders. Biomedicines 2022; 10:biomedicines10051143. [PMID: 35625880 PMCID: PMC9138678 DOI: 10.3390/biomedicines10051143] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2022] [Revised: 04/23/2022] [Accepted: 04/30/2022] [Indexed: 12/30/2022] Open
Abstract
Globally, neurodegenerative diseases cause a significant degree of disability and distress. Brain-derived neurotrophic factor (BDNF), primarily found in the brain, has a substantial role in the development and maintenance of various nerve roles and is associated with the family of neurotrophins, including neuronal growth factor (NGF), neurotrophin-3 (NT-3) and neurotrophin-4/5 (NT-4/5). BDNF has affinity with tropomyosin receptor kinase B (TrKB), which is found in the brain in large amounts and is expressed in several cells. Several studies have shown that decrease in BDNF causes an imbalance in neuronal functioning and survival. Moreover, BDNF has several important roles, such as improving synaptic plasticity and contributing to long-lasting memory formation. BDNF has been linked to the pathology of the most common neurodegenerative disorders, such as Alzheimer’s and Parkinson’s disease. This review aims to describe recent efforts to understand the connection between the level of BDNF and neurodegenerative diseases. Several studies have shown that a high level of BDNF is associated with a lower risk for developing a neurodegenerative disease.
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Cramer T, Gill R, Thirouin ZS, Vaas M, Sampath S, Martineau F, Noya SB, Panzanelli P, Sudharshan TJJ, Colameo D, Chang PKY, Wu PY, Shi R, Barker PA, Brown SA, Paolicelli RC, Klohs J, McKinney RA, Tyagarajan SK. Cross-talk between GABAergic postsynapse and microglia regulate synapse loss after brain ischemia. SCIENCE ADVANCES 2022; 8:eabj0112. [PMID: 35245123 PMCID: PMC8896802 DOI: 10.1126/sciadv.abj0112] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
Microglia interact with neurons to facilitate synapse plasticity; however, signal(s) contributing to microglia activation for synapse elimination in pathology are not fully understood. Here, using in vitro organotypic hippocampal slice cultures and transient middle cerebral artery occlusion (MCAO) in genetically engineered mice in vivo, we report that at 24 hours after ischemia, microglia release brain-derived neurotrophic factor (BDNF) to downregulate glutamatergic and GABAergic synapses within the peri-infarct area. Analysis of the cornu ammonis 1 (CA1) in vitro shows that proBDNF and mBDNF downregulate glutamatergic dendritic spines and gephyrin scaffold stability through p75 neurotrophin receptor (p75NTR) and tropomyosin receptor kinase B (TrkB) receptors, respectively. After MCAO, we report that in the peri-infarct area and in the corresponding contralateral hemisphere, similar neuroplasticity occurs through microglia activation and gephyrin phosphorylation at serine-268 and serine-270 in vivo. Targeted deletion of the Bdnf gene in microglia or GphnS268A/S270A (phospho-null) point mutations protects against ischemic brain damage, neuroinflammation, and synapse downregulation after MCAO.
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Affiliation(s)
- Teresa Cramer
- Institute of Pharmacology and Toxicology, University of Zurich, Winterthurerstrasse 190, CH 8057 Zürich, Switzerland
| | - Raminder Gill
- Department of Pharmacology and Therapeutics, McGill University, 3649 Prom. Sir-William-Osler, Montreal, QC H3G 0B1, Canada
| | - Zahra S. Thirouin
- Research Institute of the McGill University Health Centre, 1650 Cedar Avenue, Montreal, QC H3G1A4, Canada
| | - Markus Vaas
- Clinical Trials Center, University Hospital Zurich, Rämistrasse 100/MOU2, CH 8044 Zürich, Switzerland
| | - Suchita Sampath
- Institute of Pharmacology and Toxicology, University of Zurich, Winterthurerstrasse 190, CH 8057 Zürich, Switzerland
| | - Fanny Martineau
- Department of Biomedical Sciences, University of Lausanne, Rue du Bugnon 7, CH 1005 Lausanne, Switzerland
| | - Sara B. Noya
- Institute of Pharmacology and Toxicology, University of Zurich, Winterthurerstrasse 190, CH 8057 Zürich, Switzerland
| | - Patrizia Panzanelli
- Department of Neuroscience Rita Levi Montalcini, University of Turin, Turin, Italy
| | - Tania J. J. Sudharshan
- Institute of Pharmacology and Toxicology, University of Zurich, Winterthurerstrasse 190, CH 8057 Zürich, Switzerland
| | - David Colameo
- Institute of Pharmacology and Toxicology, University of Zurich, Winterthurerstrasse 190, CH 8057 Zürich, Switzerland
| | - Philip K.-Y. Chang
- Department of Pharmacology and Therapeutics, McGill University, 3649 Prom. Sir-William-Osler, Montreal, QC H3G 0B1, Canada
| | - Pei You Wu
- Department of Pharmacology and Therapeutics, McGill University, 3649 Prom. Sir-William-Osler, Montreal, QC H3G 0B1, Canada
| | - Roy Shi
- Department of Pharmacology and Therapeutics, McGill University, 3649 Prom. Sir-William-Osler, Montreal, QC H3G 0B1, Canada
| | - Philip A. Barker
- Department of Biology, University of British Columbia, 3187 University Way, ASC 413, Kelowna, BC V1V 1V7, Canada
| | - Steven A. Brown
- Institute of Pharmacology and Toxicology, University of Zurich, Winterthurerstrasse 190, CH 8057 Zürich, Switzerland
| | - Rosa C. Paolicelli
- Department of Biomedical Sciences, University of Lausanne, Rue du Bugnon 7, CH 1005 Lausanne, Switzerland
| | - Jan Klohs
- Institute for Biomedical Engineering, University of Zurich and ETH Zurich, Wolfgang-Pauli-Strasse 27, CH 8093 Zürich, Switzerland
| | - Rebecca Anne McKinney
- Department of Pharmacology and Therapeutics, McGill University, 3649 Prom. Sir-William-Osler, Montreal, QC H3G 0B1, Canada
- Corresponding author. (S.K.T.); (R.A.M.)
| | - Shiva K. Tyagarajan
- Institute of Pharmacology and Toxicology, University of Zurich, Winterthurerstrasse 190, CH 8057 Zürich, Switzerland
- Department of Pharmacology and Therapeutics, McGill University, 3649 Prom. Sir-William-Osler, Montreal, QC H3G 0B1, Canada
- Corresponding author. (S.K.T.); (R.A.M.)
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Hastings N, Kuan WL, Osborne A, Kotter MRN. Therapeutic Potential of Astrocyte Transplantation. Cell Transplant 2022; 31:9636897221105499. [PMID: 35770772 PMCID: PMC9251977 DOI: 10.1177/09636897221105499] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Cell transplantation is an attractive treatment strategy for a variety of brain disorders, as it promises to replenish lost functions and rejuvenate the brain. In particular, transplantation of astrocytes has come into light recently as a therapy for amyotrophic lateral sclerosis (ALS); moreover, grafting of astrocytes also showed positive results in models of other conditions ranging from neurodegenerative diseases of older age to traumatic injury and stroke. Despite clear differences in etiology, disorders such as ALS, Parkinson's, Alzheimer's, and Huntington's diseases, as well as traumatic injury and stroke, converge on a number of underlying astrocytic abnormalities, which include inflammatory changes, mitochondrial damage, calcium signaling disturbance, hemichannel opening, and loss of glutamate transporters. In this review, we examine these convergent pathways leading to astrocyte dysfunction, and explore the existing evidence for a therapeutic potential of transplantation of healthy astrocytes in various models. Existing literature presents a wide variety of methods to generate astrocytes, or relevant precursor cells, for subsequent transplantation, while described outcomes of this type of treatment also differ between studies. We take technical differences between methodologies into account to understand the variability of therapeutic benefits, or lack thereof, at a deeper level. We conclude by discussing some key requirements of an astrocyte graft that would be most suitable for clinical applications.
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Affiliation(s)
- Nataly Hastings
- Department of Clinical Neurosciences, University of Cambridge, Cambridge, UK.,Wellcome-MRC Cambridge Stem Cell Institute, University of Cambridge, Cambridge, UK
| | - Wei-Li Kuan
- Department of Clinical Neurosciences, University of Cambridge, Cambridge, UK
| | - Andrew Osborne
- Department of Clinical Neurosciences, University of Cambridge, Cambridge, UK
| | - Mark R N Kotter
- Department of Clinical Neurosciences, University of Cambridge, Cambridge, UK.,Wellcome-MRC Cambridge Stem Cell Institute, University of Cambridge, Cambridge, UK
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15
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Lin PH, Kuo LT, Luh HT. The Roles of Neurotrophins in Traumatic Brain Injury. LIFE (BASEL, SWITZERLAND) 2021; 12:life12010026. [PMID: 35054419 PMCID: PMC8780368 DOI: 10.3390/life12010026] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Revised: 12/18/2021] [Accepted: 12/21/2021] [Indexed: 02/08/2023]
Abstract
Neurotrophins are a collection of structurally and functionally related proteins. They play important roles in many aspects of neural development, survival, and plasticity. Traumatic brain injury (TBI) leads to different levels of central nervous tissue destruction and cellular repair through various compensatory mechanisms promoted by the injured brain. Many studies have shown that neurotrophins are key modulators of neuroinflammation, apoptosis, blood–brain barrier permeability, memory capacity, and neurite regeneration. The expression of neurotrophins following TBI is affected by the severity of injury, genetic polymorphism, and different post-traumatic time points. Emerging research is focused on the potential therapeutic applications of neurotrophins in managing TBI. We conducted a comprehensive review by organizing the studies that demonstrate the role of neurotrophins in the management of TBI.
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Affiliation(s)
- Ping-Hung Lin
- Department of Medical Education, School of Medicine, National Taiwan University, Taipei 100, Taiwan;
| | - Lu-Ting Kuo
- Division of Neurosurgery, Department of Surgery, National Taiwan University Hospital, Taipei 100, Taiwan;
| | - Hui-Tzung Luh
- Department of Neurosurgery, Shuang Ho Hospital, Taipei Medical University, New Taipei City 235, Taiwan
- Taipei Neuroscience Institute, Taipei Medical University, New Taipei City 235, Taiwan
- Graduate Institute of Clinical Medicine, National Taiwan University, Taipei 100, Taiwan
- Correspondence: ; Tel.: +886-956279587
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16
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Vilar M. Neurotrophin receptοrs, gamma-secretase inhibitors, and neurodegeneration of basal forebrain cholinergic neurons. Neural Regen Res 2021; 17:1493-1494. [PMID: 34916430 PMCID: PMC8771120 DOI: 10.4103/1673-5374.330607] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Marçal Vilar
- Instituto de Biomedicina de València del CSIC, València, Spain
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17
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Kondaurova EM, Plyusnina AV, Ilchibaeva TV, Eremin DV, Rodnyy AY, Grygoreva YD, Naumenko VS. Effects of a Cc2d1a/Freud-1 Knockdown in the Hippocampus on Behavior, the Serotonin System, and BDNF. Int J Mol Sci 2021; 22:ijms222413319. [PMID: 34948116 PMCID: PMC8707087 DOI: 10.3390/ijms222413319] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Revised: 12/04/2021] [Accepted: 12/09/2021] [Indexed: 11/16/2022] Open
Abstract
The serotonin 5-HT1A receptor is one of the most abundant and widely distributed brain serotonin (5-HT) receptors that play a major role in the modulation of emotions and behavior. The 5-HT1A receptor gene (Htr1a) is under the control of transcription factor Freud-1 (also known as Cc2d1a/Freud-1). Here, using adeno-associated virus (AAV) constructs in vivo, we investigated effects of a Cc2d1a/Freud-1 knockdown in the hippocampus of C57BL/6J mice on behavior, the brain 5-HT system, and brain-derived neurotrophic factor (BDNF). AAV particles carrying the pAAV_H1-2_shRNA-Freud-1_Syn_EGFP plasmid encoding a short-hairpin RNA targeting mouse Cc2d1a/Freud-1 mRNA had an antidepressant effect in the forced swim test 5 weeks after virus injection. The knockdown impaired spatiotemporal memory as assessed in the Morris water maze. pAAV_H1-2_shRNA-Freud-1_Syn_EGFP decreased Cc2d1a/Freud-1 mRNA and protein levels. Furthermore, the Cc2d1a/Freud-1 knockdown upregulated 5-HT and its metabolite 5-hydroxyindoleacetic acid but not their ratio. The Cc2d1a/Freud-1 knockdown failed to increase mRNA and protein levels of Htr1a but diminished a 5-HT1A receptor functional response. Meanwhile, the Cc2d1a/Freud-1 knockdown reduced Creb mRNA expression and CREB phosphorylation and upregulated cFos mRNA. The knockdown enhanced the expression of a BDNF precursor (proBDNF protein), which is known to play a crucial part in neuroplasticity. Our data indicate that transcription factor Cc2d1a/Freud-1 is implicated in the pathogenesis of depressive disorders not only via the 5-HT1A receptor and transcription factor CREB but also through an influence on BDNF.
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18
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Ameliorative effects of oyster (Crassostrea hongkongensis) protein hydrolysate on age-induced cognitive impairment via restoring glia cell dysfunction and neuronal injured in zebrafish. J Funct Foods 2021. [DOI: 10.1016/j.jff.2021.104607] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
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19
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Expression Levels of Nerve Growth Factor and Its Receptors in Anterior Vaginal Wall in Postmenopausal Women With Pelvic Organ Prolapse. Female Pelvic Med Reconstr Surg 2021; 27:457-461. [PMID: 32740468 DOI: 10.1097/spv.0000000000000923] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
OBJECTIVE To investigate the expression levels of nerve growth factor (NGF) and its receptors TrkA and p75NTR in the anterior vaginal wall of postmenopausal patients with pelvic organ prolapse (POP). METHODS The tissues of anterior vaginal wall of the patients (n = 31) with POP and patients (n = 16) with nonpelvic floor dysfunction were collected during the operation. The expressions of NGF, TrkA, and p75NTR were detected by real-time quantitative polymerase chain reaction, immunohistochemistry and Western blot. RESULTS The expression levels of mRNA and protein of NGF and its receptors in vaginal anterior wall tissues of postmenopausal POP patients were significantly decrease compared with those of the control group. The ratio of p75NTR/TrkA expression in POP patients was significantly increase compared with that in the control group and was proportional to the degree of prolapse. CONCLUSIONS The decreased expression of NGF and its receptors p75NTR and TrkA in vaginal anterior wall tissue of postmenopausal POP patients and the change of the ratio of 2 receptors may be related to the occurrence and development of POP.
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20
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Interaction between the transmembrane domains of neurotrophin receptors p75 and TrkA mediates their reciprocal activation. J Biol Chem 2021; 297:100926. [PMID: 34216618 PMCID: PMC8327350 DOI: 10.1016/j.jbc.2021.100926] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Revised: 06/25/2021] [Accepted: 06/28/2021] [Indexed: 11/23/2022] Open
Abstract
The neurotrophin receptors p75 and tyrosine protein kinase receptor A (TrkA) play important roles in the development and survival of the nervous system. Biochemical data suggest that p75 and TrkA reciprocally regulate the activities of each other. For instance, p75 is able to regulate the response of TrkA to lower concentrations of nerve growth factor (NGF), and TrkA promotes shedding of the extracellular domain of p75 by α-secretases in a ligand-dependent manner. The current model suggests that p75 and TrkA are regulated by means of a direct physical interaction; however, the nature of such interaction has been elusive thus far. Here, using NMR in micelles, multiscale molecular dynamics, FRET, and functional studies, we identified and characterized the direct interaction between TrkA and p75 through their respective transmembrane domains (TMDs). Molecular dynamics of p75-TMD mutants suggests that although the interaction between TrkA and p75 TMDs is maintained upon mutation, a specific protein interface is required to facilitate TrkA active homodimerization in the presence of NGF. The same mutations in the TMD protein interface of p75 reduced the activation of TrkA by NGF as well as reducing cell differentiation. In summary, we provide a structural model of the p75–TrkA receptor complex necessary for neuronal development stabilized by TMD interactions.
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21
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Ehinger Y, Phamluong K, Darevesky D, Welman M, Moffat JJ, Sakhai SA, Whiteley EL, Berger AL, Laguesse S, Farokhnia M, Leggio L, Lordkipanidzé M, Ron D. Differential correlation of serum BDNF and microRNA content in rats with rapid or late onset of heavy alcohol use. Addict Biol 2021; 26:e12890. [PMID: 32135570 DOI: 10.1111/adb.12890] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2019] [Revised: 02/13/2020] [Accepted: 02/15/2020] [Indexed: 12/22/2022]
Abstract
Heavy alcohol use reduces the levels of the brain-derived neurotrophic factor (BDNF) in the prefrontal cortex of rodents through the upregulation of microRNAs (miRs) targeting BDNF mRNA. In humans, an inverse correlation exists between circulating blood levels of BDNF and the severity of psychiatric disorders including alcohol abuse. Here, we set out to determine whether a history of heavy alcohol use produces comparable alterations in the blood of rats. We used an intermittent access to 20% alcohol using the two-bottle choice paradigm (IA20%2BC) and measured circulating levels of BDNF protein and miRs targeting BDNF in the serum of Long-Evans rats before and after 8 weeks of excessive alcohol intake. We observed that the drinking profile of heavy alcohol users is not unified, whereas 70% of the rats gradually escalate their alcohol intake (late onset), and 30% of alcohol users exhibit a very rapid onset of drinking (rapid onset). We found that serum BDNF levels are negatively correlated with alcohol intake in both rapid onset and late onset rats. In contrast, increased expression of the miRs targeting BDNF, miR30a-5p, miR-195-5p, miR191-5p and miR206-3p, was detected only in the rapid onset rats. Finally, we report that the alcohol-dependent molecular changes are not due to alterations in platelet number. Together, these data suggest that rats exhibit both late and rapid onset of alcohol intake. We further show that heavy alcohol use produces comparable changes in BDNF protein levels in both groups. However, circulating microRNAs are responsive to alcohol only in the rapid onset rats.
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Affiliation(s)
- Yann Ehinger
- Department of Neurology University of California, San Francisco San Francisco California
| | - Khanhky Phamluong
- Department of Neurology University of California, San Francisco San Francisco California
| | - David Darevesky
- Department of Neurology University of California, San Francisco San Francisco California
| | - Melanie Welman
- Research Center Montreal Heart Institute Montreal Quebec Canada
| | - Jeffrey J. Moffat
- Department of Neurology University of California, San Francisco San Francisco California
| | - Samuel A. Sakhai
- Department of Neurology University of California, San Francisco San Francisco California
| | - Ellanor L. Whiteley
- Department of Neurology University of California, San Francisco San Francisco California
| | - Anthony L. Berger
- Department of Neurology University of California, San Francisco San Francisco California
| | - Sophie Laguesse
- Department of Neurology University of California, San Francisco San Francisco California
| | - Mehdi Farokhnia
- Clinical Psychoneuroendocrinology and Neuropsychopharmacology Section National Institute on Drug Abuse Intramural Research Program Baltimore Maryland
- Medication Development Program, National Institute on Drug Abuse Intramural Research Program National Institutes of Health Baltimore Maryland
- National Institute on Alcohol Abuse and Alcoholism Division of Intramural Clinical and Biological Research National Institutes of Health Bethesda Maryland
| | - Lorenzo Leggio
- Clinical Psychoneuroendocrinology and Neuropsychopharmacology Section National Institute on Drug Abuse Intramural Research Program Baltimore Maryland
- Medication Development Program, National Institute on Drug Abuse Intramural Research Program National Institutes of Health Baltimore Maryland
- Center for Alcohol and Addiction Studies, Department of Behavioral and Social Sciences Brown University Providence Rhode Island
- National Institute on Alcohol Abuse and Alcoholism Division of Intramural Clinical and Biological Research National Institutes of Health Bethesda Maryland
| | - Marie Lordkipanidzé
- Research Center Montreal Heart Institute Montreal Quebec Canada
- Faculty of Pharmacy University of Montreal Montreal Quebec Canada
| | - Dorit Ron
- Department of Neurology University of California, San Francisco San Francisco California
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22
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Pathak A, Clark S, Bronfman FC, Deppmann CD, Carter BD. Long-distance regressive signaling in neural development and disease. WILEY INTERDISCIPLINARY REVIEWS. DEVELOPMENTAL BIOLOGY 2021; 10:e382. [PMID: 32391977 PMCID: PMC7655682 DOI: 10.1002/wdev.382] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/02/2019] [Revised: 03/23/2020] [Accepted: 04/06/2020] [Indexed: 02/06/2023]
Abstract
Nervous system development proceeds via well-orchestrated processes involving a balance between progressive and regressive events including stabilization or elimination of axons, synapses, and even entire neurons. These progressive and regressive events are driven by functionally antagonistic signaling pathways with the dominant pathway eventually determining whether a neural element is retained or removed. Many of these developmental sculpting events are triggered by final target innervation necessitating a long-distance mode of communication. While long-distance progressive signaling has been well characterized, particularly for neurotrophic factors, there remains relatively little known about how regressive events are triggered from a distance. Here we discuss the emergent phenomenon of long-distance regressive signaling pathways. In particular, we will cover (a) progressive and regressive cues known to be employed after target innervation, (b) the mechanisms of long-distance signaling from an endosomal platform, (c) recent evidence that long-distance regressive cues emanate from platforms like death receptors or repulsive axon guidance receptors, and (d) evidence that these pathways are exploited in pathological scenarios. This article is categorized under: Nervous System Development > Vertebrates: General Principles Signaling Pathways > Global Signaling Mechanisms Establishment of Spatial and Temporal Patterns > Cytoplasmic Localization.
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Affiliation(s)
- Amrita Pathak
- Department of Biochemistry and Vanderbilt Brain Institute, Vanderbilt University School of Medicine, Nashville, Tennessee
| | - Shayla Clark
- Neuroscience Graduate Program, University of Virginia, Charlottesville, Virginia
| | - Francisca C. Bronfman
- Institute of Biomedical Sciences (ICB), Faculty of Medicine, Faculty of Life Science, Universidad Andres Bello, Santiago, Chile
| | - Christopher D. Deppmann
- Departments of Biology, Cell Biology, Biomedical Engineering, and Neuroscience, University of Virginia, Charlottesville, Virginia
| | - Bruce D. Carter
- Department of Biochemistry and Vanderbilt Brain Institute, Vanderbilt University School of Medicine, Nashville, Tennessee
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23
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Franco ML, García-Carpio I, Comaposada-Baró R, Escribano-Saiz JJ, Chávez-Gutiérrez L, Vilar M. TrkA-mediated endocytosis of p75-CTF prevents cholinergic neuron death upon γ-secretase inhibition. Life Sci Alliance 2021; 4:4/4/e202000844. [PMID: 33536237 PMCID: PMC7898468 DOI: 10.26508/lsa.202000844] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Revised: 01/11/2021] [Accepted: 01/11/2021] [Indexed: 12/13/2022] Open
Abstract
The findings shed light into the adverse effects of GSIs observed in the Alzheimer’s field and explain, at least in part, the unexpected worsening in cognition observed in the semagacestat Phase 3 trial. γ-secretase inhibitors (GSI) were developed to reduce the generation of Aβ peptide to find new Alzheimer’s disease treatments. Clinical trials on Alzheimer’s disease patients, however, showed several side effects that worsened the cognitive symptoms of the treated patients. The observed side effects were partially attributed to Notch signaling. However, the effect on other γ-secretase substrates, such as the p75 neurotrophin receptor (p75NTR) has not been studied in detail. p75NTR is highly expressed in the basal forebrain cholinergic neurons (BFCNs) during all life. Here, we show that GSI treatment induces the oligomerization of p75CTF leading to the cell death of BFCNs, and that this event is dependent on TrkA activity. The oligomerization of p75CTF requires an intact cholesterol recognition sequence (CRAC) and the constitutive binding of TRAF6, which activates the JNK and p38 pathways. Remarkably, TrkA rescues from cell death by a mechanism involving the endocytosis of p75CTF. These results suggest that the inhibition of γ-secretase activity in aged patients, where the expression of TrkA in the BFCNs is already reduced, could accelerate cholinergic dysfunction and promote neurodegeneration.
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Affiliation(s)
- María Luisa Franco
- Molecular Basis of Neurodegeneration Unit, Institute of Biomedicine of València (IBV-CSIC), València, Spain
| | - Irmina García-Carpio
- Molecular Basis of Neurodegeneration Unit, Institute of Biomedicine of València (IBV-CSIC), València, Spain
| | - Raquel Comaposada-Baró
- Molecular Basis of Neurodegeneration Unit, Institute of Biomedicine of València (IBV-CSIC), València, Spain
| | - Juan J Escribano-Saiz
- Molecular Basis of Neurodegeneration Unit, Institute of Biomedicine of València (IBV-CSIC), València, Spain
| | - Lucía Chávez-Gutiérrez
- Vlaams Instituut voor Biotechnologie Katholieke Universiteit (VIB-KU) Leuven Center for Brain and Disease, Leuven, Belgium
| | - Marçal Vilar
- Molecular Basis of Neurodegeneration Unit, Institute of Biomedicine of València (IBV-CSIC), València, Spain
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Ozalp O, Cark O, Azbazdar Y, Haykir B, Cucun G, Kucukaylak I, Alkan-Yesilyurt G, Sezgin E, Ozhan G. Nradd Acts as a Negative Feedback Regulator of Wnt/β-Catenin Signaling and Promotes Apoptosis. Biomolecules 2021; 11:100. [PMID: 33466728 PMCID: PMC7828832 DOI: 10.3390/biom11010100] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Revised: 01/05/2021] [Accepted: 01/11/2021] [Indexed: 12/16/2022] Open
Abstract
Wnt/β-catenin signaling controls many biological processes for the generation and sustainability of proper tissue size, organization and function during development and homeostasis. Consequently, mutations in the Wnt pathway components and modulators cause diseases, including genetic disorders and cancers. Targeted treatment of pathway-associated diseases entails detailed understanding of the regulatory mechanisms that fine-tune Wnt signaling. Here, we identify the neurotrophin receptor-associated death domain (Nradd), a homolog of p75 neurotrophin receptor (p75NTR), as a negative regulator of Wnt/β-catenin signaling in zebrafish embryos and in mammalian cells. Nradd significantly suppresses Wnt8-mediated patterning of the mesoderm and neuroectoderm during zebrafish gastrulation. Nradd is localized at the plasma membrane, physically interacts with the Wnt receptor complex and enhances apoptosis in cooperation with Wnt/β-catenin signaling. Our functional analyses indicate that the N-glycosylated N-terminus and the death domain-containing C-terminus regions are necessary for both the inhibition of Wnt signaling and apoptosis. Finally, Nradd can induce apoptosis in mammalian cells. Thus, Nradd regulates cell death as a modifier of Wnt/β-catenin signaling during development.
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Affiliation(s)
- Ozgun Ozalp
- Izmir Biomedicine and Genome Center (IBG), Dokuz Eylul University Health Campus, Inciralti-Balcova, 35340 Izmir, Turkey; (O.O.); (O.C.); (Y.A.); (B.H.); (G.C.); (I.K.); (G.A.-Y.)
- Izmir International Biomedicine and Genome Institute (IBG-Izmir), Dokuz Eylul University, Inciralti-Balcova, 35340 Izmir, Turkey
| | - Ozge Cark
- Izmir Biomedicine and Genome Center (IBG), Dokuz Eylul University Health Campus, Inciralti-Balcova, 35340 Izmir, Turkey; (O.O.); (O.C.); (Y.A.); (B.H.); (G.C.); (I.K.); (G.A.-Y.)
- Izmir International Biomedicine and Genome Institute (IBG-Izmir), Dokuz Eylul University, Inciralti-Balcova, 35340 Izmir, Turkey
| | - Yagmur Azbazdar
- Izmir Biomedicine and Genome Center (IBG), Dokuz Eylul University Health Campus, Inciralti-Balcova, 35340 Izmir, Turkey; (O.O.); (O.C.); (Y.A.); (B.H.); (G.C.); (I.K.); (G.A.-Y.)
- Izmir International Biomedicine and Genome Institute (IBG-Izmir), Dokuz Eylul University, Inciralti-Balcova, 35340 Izmir, Turkey
| | - Betul Haykir
- Izmir Biomedicine and Genome Center (IBG), Dokuz Eylul University Health Campus, Inciralti-Balcova, 35340 Izmir, Turkey; (O.O.); (O.C.); (Y.A.); (B.H.); (G.C.); (I.K.); (G.A.-Y.)
- Institute of Physiology, Switzerland and National Center of Competence in Research NCCR Kidney, University of Zurich, CH-8057 Zurich, Switzerland
| | - Gokhan Cucun
- Izmir Biomedicine and Genome Center (IBG), Dokuz Eylul University Health Campus, Inciralti-Balcova, 35340 Izmir, Turkey; (O.O.); (O.C.); (Y.A.); (B.H.); (G.C.); (I.K.); (G.A.-Y.)
- Izmir International Biomedicine and Genome Institute (IBG-Izmir), Dokuz Eylul University, Inciralti-Balcova, 35340 Izmir, Turkey
| | - Ismail Kucukaylak
- Izmir Biomedicine and Genome Center (IBG), Dokuz Eylul University Health Campus, Inciralti-Balcova, 35340 Izmir, Turkey; (O.O.); (O.C.); (Y.A.); (B.H.); (G.C.); (I.K.); (G.A.-Y.)
- Institute of Zoology-Developmental Biology, University of Cologne, 50674 Cologne, Germany
| | - Gozde Alkan-Yesilyurt
- Izmir Biomedicine and Genome Center (IBG), Dokuz Eylul University Health Campus, Inciralti-Balcova, 35340 Izmir, Turkey; (O.O.); (O.C.); (Y.A.); (B.H.); (G.C.); (I.K.); (G.A.-Y.)
| | - Erdinc Sezgin
- Science for Life Laboratory, Department of Women’s and Children’s Health, Karolinska Institutet, 17177 Stockholm, Sweden;
- MRC Weatherall Institute of Molecular Medicine, MRC Human Immunology Unit, University of Oxford, Oxford OX39DS, UK
| | - Gunes Ozhan
- Izmir Biomedicine and Genome Center (IBG), Dokuz Eylul University Health Campus, Inciralti-Balcova, 35340 Izmir, Turkey; (O.O.); (O.C.); (Y.A.); (B.H.); (G.C.); (I.K.); (G.A.-Y.)
- Izmir International Biomedicine and Genome Institute (IBG-Izmir), Dokuz Eylul University, Inciralti-Balcova, 35340 Izmir, Turkey
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25
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Tang T, Donnelly CR, Shah AA, Bradley RM, Mistretta CM, Pierchala BA. Cell non-autonomous requirement of p75 in the development of geniculate oral sensory neurons. Sci Rep 2020; 10:22117. [PMID: 33335119 PMCID: PMC7747618 DOI: 10.1038/s41598-020-78816-y] [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: 12/05/2019] [Accepted: 11/30/2020] [Indexed: 11/13/2022] Open
Abstract
During development of the peripheral taste system, oral sensory neurons of the geniculate ganglion project via the chorda tympani nerve to innervate taste buds in fungiform papillae. Germline deletion of the p75 neurotrophin receptor causes dramatic axon guidance and branching deficits, leading to a loss of geniculate neurons. To determine whether the developmental functions of p75 in geniculate neurons are cell autonomous, we deleted p75 specifically in Phox2b + oral sensory neurons (Phox2b-Cre; p75fx/fx) or in neural crest-derived cells (P0-Cre; p75fx/fx) and examined geniculate neuron development. In germline p75-/- mice half of all geniculate neurons were lost. The proportion of Phox2b + neurons, as compared to Phox2b-pinna-projecting neurons, was not altered, indicating that both populations were affected similarly. Chorda tympani nerve recordings demonstrated that p75-/- mice exhibit profound deficits in responses to taste and tactile stimuli. In contrast to p75-/- mice, there was no loss of geniculate neurons in either Phox2b-Cre; p75fx/fx or P0-Cre; p75fx/fx mice. Electrophysiological analyses demonstrated that Phox2b-Cre; p75fx/fx mice had normal taste and oral tactile responses. There was a modest but significant loss of fungiform taste buds in Phox2b-Cre; p75fx/fx mice, although there was not a loss of chemosensory innervation of the remaining fungiform taste buds. Overall, these data suggest that the developmental functions of p75 are largely cell non-autonomous and require p75 expression in other cell types of the chorda tympani circuit.
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Affiliation(s)
- Tao Tang
- Department of Biologic and Materials Sciences, University of Michigan School of Dentistry, Ann Arbor, MI, 48109, USA
- Department of Anatomy, Cell Biology & Physiology, Stark Neurosciences Research Institute, Indiana University School of Medicine, 320 West 15th Street, Indianapolis, IN, 46202, USA
| | - Christopher R Donnelly
- Department of Biologic and Materials Sciences, University of Michigan School of Dentistry, Ann Arbor, MI, 48109, USA
- Center for Translational Pain Medicine, Department of Anesthesiology, Duke University School of Medicine, Durham, NC, 27710, USA
| | - Amol A Shah
- Department of Biologic and Materials Sciences, University of Michigan School of Dentistry, Ann Arbor, MI, 48109, USA
| | - Robert M Bradley
- Department of Biologic and Materials Sciences, University of Michigan School of Dentistry, Ann Arbor, MI, 48109, USA
| | - Charlotte M Mistretta
- Department of Biologic and Materials Sciences, University of Michigan School of Dentistry, Ann Arbor, MI, 48109, USA
| | - Brian A Pierchala
- Department of Biologic and Materials Sciences, University of Michigan School of Dentistry, Ann Arbor, MI, 48109, USA.
- Department of Anatomy, Cell Biology & Physiology, Stark Neurosciences Research Institute, Indiana University School of Medicine, 320 West 15th Street, Indianapolis, IN, 46202, USA.
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Liran M, Rahamim N, Ron D, Barak S. Growth Factors and Alcohol Use Disorder. Cold Spring Harb Perspect Med 2020; 10:cshperspect.a039271. [PMID: 31964648 DOI: 10.1101/cshperspect.a039271] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Neurotrophic growth factors were originally characterized for their support in neuronal differentiation, outgrowth, and survival during development. However, it has been acknowledged that they also play a vital role in the adult brain. Abnormalities in growth factors have been implicated in a variety of neurological and psychiatric disorders, including alcohol use disorder (AUD). This work focuses on the interaction between alcohol and growth factors. We review literature suggesting that several growth factors play a unique role in the regulation of alcohol consumption, and that breakdown in these growth factor systems is linked to the development of AUD. Specifically, we focus on the brain-derived neurotrophic factor (BDNF), glial cell line-derived neurotrophic factor (GDNF), fibroblast growth factor 2 (FGF2), and insulin growth factor 1 (IGF-1). We also review the literature on the potential role of midkine (MDK) and pleiotrophin (PTN) and their receptor, anaplastic lymphoma kinase (ALK), in AUD. We show that alcohol alters the expression of these growth factors or their receptors in brain regions previously implicated in addiction, and that manipulations on these growth factors and their downstream signaling can affect alcohol-drinking behaviors in animal models. We conclude that there is a need for translational and clinical research to assess the therapeutic potential of new pharmacotherapies targeting these systems.
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Affiliation(s)
- Mirit Liran
- Department of Neurobiology, Tel Aviv University, 69978 Tel Aviv, Israel
| | - Nofar Rahamim
- Sagol School of Neuroscience, Tel Aviv University, 69978 Tel Aviv, Israel
| | - Dorit Ron
- Department of Neurology, University of California, 675 Nelson Rising Lane, San Francisco, California 94143-0663, USA
| | - Segev Barak
- Department of Neurobiology, Tel Aviv University, 69978 Tel Aviv, Israel.,Sagol School of Neuroscience, Tel Aviv University, 69978 Tel Aviv, Israel.,School of Psychological Sciences, Tel Aviv University, 69978 Tel Aviv, Israel
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c-Jun N-terminal Kinase Mediates Ligand-independent p75 NTR Signaling in Mesencephalic Cells Subjected to Oxidative Stress. Neuroscience 2020; 453:222-236. [PMID: 33253821 DOI: 10.1016/j.neuroscience.2020.11.036] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2020] [Revised: 11/01/2020] [Accepted: 11/22/2020] [Indexed: 12/11/2022]
Abstract
The p75 neurotrophin receptor (p75NTR) is a multifunctional protein that regulates cellular responses to pathological conditions in specific regions of the nervous system. Activation of p75NTR in certain neuronal populations induces proteolytic processing of the receptor, thereby generating p75NTR fragments that facilitate downstream signaling. Expression of p75NTR has been reported in neurons of the ventral midbrain, but p75NTR signaling mechanisms in such cells are poorly understood. Here, we used Lund Human Mesencephalic cells, a population of neuronal cells derived from the ventral mesencephalon, to evaluate the effects of oxidative stress on p75NTR signaling. Subjection of the cells to oxidative stress resulted in decreased cell-surface localization of p75NTR and intracellular accumulation of p75NTR fragments. Oxidative stress-induced p75NTR processing was reduced by pharmacological inhibition of metalloproteases or γ-secretase, but was unaltered by blockade of the ligand-binding domain of p75NTR. Furthermore, inhibition of c-Jun N-terminal Kinase (JNK) decreased p75NTR cleavage induced by oxidative damage. Altogether, these results support a mechanism of p75NTR activation in which oxidative stress stimulates JNK signaling, thereby facilitating p75NTR processing via a ligand-independent mechanism involving induction of metalloprotease and γ-secretase activity. These findings reveal a novel role for JNK in ligand-independent p75NTR signaling, and, considering the susceptibility of mesencephalic neurons to oxidative damage associated with Parkinson's disease (PD), merit further investigation into the effects of p75NTR on PD-related neurodegeneration.
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Sajanti A, Lyne SB, Girard R, Frantzén J, Rantamäki T, Heino I, Cao Y, Diniz C, Umemori J, Li Y, Takala R, Posti JP, Roine S, Koskimäki F, Rahi M, Rinne J, Castrén E, Koskimäki J. A comprehensive p75 neurotrophin receptor gene network and pathway analyses identifying new target genes. Sci Rep 2020; 10:14984. [PMID: 32917932 PMCID: PMC7486379 DOI: 10.1038/s41598-020-72061-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2020] [Accepted: 08/24/2020] [Indexed: 12/13/2022] Open
Abstract
P75 neurotrophic receptor (p75NTR) is an important receptor for the role of neurotrophins in modulating brain plasticity and apoptosis. The current understanding of the role of p75NTR in cellular adaptation following pathological insults remains blurred, which makes p75NTR’s related signaling networks an interesting and challenging initial point of investigation. We identified p75NTR and related genes through extensive data mining of a PubMed literature search including published works related to p75NTR from the past 20 years. Bioinformatic network and pathway analyses of identified genes (n = 235) were performed using ReactomeFIViz in Cytoscape based on the highly reliable Reactome functional interaction network algorithm. This approach merges interactions extracted from human curated pathways with predicted interactions from machine learning. Genome-wide pathway analysis showed total of 16 enriched hierarchical clusters. A total of 278 enriched single pathways were also identified (p < 0.05, false discovery rate corrected). Gene network analyses showed multiple known and new targets in the p75NTR gene network. This study provides a comprehensive analysis and investigation into the current knowledge of p75NTR signaling networks and pathways. These results also identify several genes and their respective protein products as involved in the p75NTR network, which have not previously been clearly studied in this pathway. These results can be used to generate novel hypotheses to gain a greater understanding of p75NTR in acute brain injuries, neurodegenerative diseases and general response to cellular damage.
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Affiliation(s)
- Antti Sajanti
- Division of Clinical Neurosciences, Department of Neurosurgery, Turku University Hospital and University of Turku, Hämeentie 11, P.O. Box 52, 20521, Turku, Finland
| | - Seán B Lyne
- Neurovascular Surgery Program, Section of Neurosurgery, The University of Chicago Medicine and Biological Sciences, 5841 S. Maryland, Chicago, IL, 60637, USA
| | - Romuald Girard
- Neurovascular Surgery Program, Section of Neurosurgery, The University of Chicago Medicine and Biological Sciences, 5841 S. Maryland, Chicago, IL, 60637, USA
| | - Janek Frantzén
- Division of Clinical Neurosciences, Department of Neurosurgery, Turku University Hospital and University of Turku, Hämeentie 11, P.O. Box 52, 20521, Turku, Finland
| | - Tomi Rantamäki
- Laboratory of Neurotherapeutics, Molecular and Integrative Biosciences Research Programme, Faculty of Biological and Environmental Sciences and Drug Research Program, Division of Pharmacology and Pharmacotherapy, Faculty of Pharmacy, University of Helsinki, Helsinki, Finland
| | - Iiro Heino
- Division of Clinical Neurosciences, Department of Neurosurgery, Turku University Hospital and University of Turku, Hämeentie 11, P.O. Box 52, 20521, Turku, Finland
| | - Ying Cao
- Neurovascular Surgery Program, Section of Neurosurgery, The University of Chicago Medicine and Biological Sciences, 5841 S. Maryland, Chicago, IL, 60637, USA
| | - Cassiano Diniz
- Neuroscience Center, HiLIFE, University of Helsinki, Box 63, 00014, Helsinki, Finland
| | - Juzoh Umemori
- Neuroscience Center, HiLIFE, University of Helsinki, Box 63, 00014, Helsinki, Finland
| | - Yan Li
- Neurovascular Surgery Program, Section of Neurosurgery, The University of Chicago Medicine and Biological Sciences, 5841 S. Maryland, Chicago, IL, 60637, USA.,Center for Research Informatics, The University of Chicago, Chicago, IL, USA
| | - Riikka Takala
- Perioperative Services, Intensive Care and Pain Medicine, Turku University Hospital, POB 52, 20521, Turku, Finland.,Department of Anaesthesiology and Intensive Care, University of Turku, Turku, Finland
| | - Jussi P Posti
- Division of Clinical Neurosciences, Department of Neurosurgery, Turku University Hospital and University of Turku, Hämeentie 11, P.O. Box 52, 20521, Turku, Finland
| | - Susanna Roine
- Division of Clinical Neurosciences, Department of Cerebrovascular Diseases, Turku University Hospital and University of Turku, Hämeentie 11, P.O. Box 52, 20521, Turku, Finland
| | - Fredrika Koskimäki
- Division of Clinical Neurosciences, Department of Cerebrovascular Diseases, Turku University Hospital and University of Turku, Hämeentie 11, P.O. Box 52, 20521, Turku, Finland
| | - Melissa Rahi
- Division of Clinical Neurosciences, Department of Neurosurgery, Turku University Hospital and University of Turku, Hämeentie 11, P.O. Box 52, 20521, Turku, Finland
| | - Jaakko Rinne
- Division of Clinical Neurosciences, Department of Neurosurgery, Turku University Hospital and University of Turku, Hämeentie 11, P.O. Box 52, 20521, Turku, Finland
| | - Eero Castrén
- Neuroscience Center, HiLIFE, University of Helsinki, Box 63, 00014, Helsinki, Finland
| | - Janne Koskimäki
- Division of Clinical Neurosciences, Department of Neurosurgery, Turku University Hospital and University of Turku, Hämeentie 11, P.O. Box 52, 20521, Turku, Finland. .,Department of Psychiatry, Central Hospital of Southern Ostrobothnia, Hanneksenrinne 7, 60220, Seinäjoki, Finland.
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Revising the mechanism of p75NTR activation: intrinsically monomeric state of death domains invokes the "helper" hypothesis. Sci Rep 2020; 10:13686. [PMID: 32792564 PMCID: PMC7427093 DOI: 10.1038/s41598-020-70721-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Accepted: 07/27/2020] [Indexed: 02/03/2023] Open
Abstract
The neurotrophin receptor p75NTR plays crucial roles in neuron development and regulates important neuronal processes like degeneration, apoptosis and cell survival. At the same time the detailed mechanism of signal transduction is unclear. One of the main hypotheses known as the snail-tong mechanism assumes that in the inactive state, the death domains interact with each other and in response to ligand binding there is a conformational change leading to their exposure. Here, we show that neither rat nor human p75NTR death domains homodimerize in solution. Moreover, there is no interaction between the death domains in a more native context: the dimerization of transmembrane domains in liposomes and the presence of activating mutation in extracellular juxtamembrane region do not lead to intracellular domain interaction. These findings suggest that the activation mechanism of p75NTR should be revised. Thus, we propose a novel model of p75NTR functioning based on interaction with "helper" protein.
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Widasmara D, Panjarwanto DA, Sananta P. The Correlation of Semmes-Weinstein Monofilament Test with the Level of P-75 Neurotrophin as Marker of Nerve Damage in Leprosy. Clin Cosmet Investig Dermatol 2020; 13:399-404. [PMID: 32606877 PMCID: PMC7304681 DOI: 10.2147/ccid.s251356] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2020] [Accepted: 05/12/2020] [Indexed: 11/23/2022]
Abstract
Introduction Leprosy is a chronic infectious disease caused by Mycobacterium leprae that causes damage to the peripheral nerve, particularly Schwann cells. Treatment is useful only to kill bacteria but not to recover peripheral nerve damage. However, early detection of peripheral nerve damage is necessary. We examine P-75 neurotrophin (P75NTR) as an indicator of peripheral nerve damage in leprosy with the Semmes–Weinstein monofilament (SWM) test as the comparison. Methods This study uses a quantitative analytic observational study approach with cross-sectional design, conducted at Kediri Leprosy Hospital, Malang, East Java, Indonesia. All leprosy patients had a clinical examination and bacterial index to classify leprosy and then the SWM test to examine the presence of neuropathy in the palms and feet. P75NTR examination uses venous blood samples. An independent t-test was used to compare the SWM and P75NTR scores based on the type of leprosy, and then the Spearman correlation test was used to determine the correlation between SWM scores and P75NTR levels. Results In this study, SWM scores on the soles of the foot and palms and the P75NTR levels were higher in the PB group compared with MB (p<0.05). Also, a significant positive correlation was found between P75NTR and the SWM scores on the palms of the hand (r=0.864; p=0.000) and the soles of the foot (r=0.864; p=0.000). Conclusion There is a strong positive correlation between P75NTR levels and SWM scores, so P75NTR levels are very likely to be a marker of neuropathy in leprosy, but further studies are still needed to examine the specific role of these biomarkers.
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Affiliation(s)
- Dhelya Widasmara
- Department of Dermatology and Venereology, Faculty of Medicine, Universitas Brawijaya, Saiful Anwar Regional General Hospital, Malang, Indonesia
| | | | - Panji Sananta
- Orthopaedic and Traumatology Department, Faculty of Medicine, Universitas Brawijaya, Saiful Anwar Regional General Hospital, Malang, Indonesia
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Halievski K, Xu Y, Haddad YW, Tang YP, Yamada S, Katsuno M, Adachi H, Sobue G, Breedlove SM, Jordan CL. Muscle BDNF improves synaptic and contractile muscle strength in Kennedy's disease mice in a muscle-type specific manner. J Physiol 2020; 598:2719-2739. [PMID: 32306402 DOI: 10.1113/jp279208] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2019] [Accepted: 04/14/2020] [Indexed: 12/13/2022] Open
Abstract
KEY POINTS Muscle-derived neurotrophic factors may offer therapeutic promise for treating neuromuscular diseases. We report that a muscle-derived neurotrophic factor, BDNF, rescues synaptic and muscle function in a muscle-type specific manner in mice modelling Kennedy's disease (KD). We also find that BDNF rescues select molecular mechanisms in slow and fast muscle that may underlie the improved cellular function. We also report for the first time that expression of BDNF, but not other members of the neurotrophin family, is perturbed in muscle from patients with KD. Given that muscle BDNF had divergent therapeutic effects that depended on muscle type, a combination of neurotrophic factors may optimally rescue neuromuscular function via effects on both pre- and postsynaptic function, in the face of disease. ABSTRACT Deficits in muscle brain-derived neurotrophic factor (BDNF) correlate with neuromuscular deficits in mouse models of Kennedy's disease (KD), suggesting that restoring muscle BDNF might restore function. To test this possibility, transgenic mice expressing human BDNF in skeletal muscle were crossed with '97Q' KD mice. We found that muscle BDNF slowed disease, doubling the time between symptom onset and endstage. BDNF also improved expression of genes in muscle known to play key roles in neuromuscular function, including counteracting the expression of neonatal isoforms induced by disease. Intriguingly, BDNF's ameliorative effects differed between muscle types: synaptic strength was rescued only in slow-twitch muscle, while contractile strength was improved only in fast-twitch muscle. In sum, muscle BDNF slows disease progression, rescuing select cellular and molecular mechanisms that depend on fibre type. Muscle BDNF expression was also affected in KD patients, reinforcing its translational and therapeutic potential for treating this disorder.
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Affiliation(s)
- Katherine Halievski
- Neuroscience Program, Michigan State University, 108 Giltner Hall, East Lansing, MI, 48824-1115, USA.,Program in Neurosciences and Mental Health, The Hospital for Sick Children, 686 Bay St, Toronto, ON, M5G 0A4, Canada
| | - Youfen Xu
- Neuroscience Program, Michigan State University, 108 Giltner Hall, East Lansing, MI, 48824-1115, USA
| | - Yazeed W Haddad
- Neuroscience Program, Michigan State University, 108 Giltner Hall, East Lansing, MI, 48824-1115, USA
| | - Yu Ping Tang
- Neuroscience Program, Michigan State University, 108 Giltner Hall, East Lansing, MI, 48824-1115, USA
| | - Shinichiro Yamada
- Department of Neurology, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, 466-8550, Japan
| | - Masahisa Katsuno
- Department of Neurology, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, 466-8550, Japan
| | - Hiroaki Adachi
- Department of Neurology, University of Occupational and Environment Health School of Medicine, 1-1 Iseigaoka, Yahatanishi-ku, Kitakyushu, Fukuoka, 807-8555, Japan
| | - Gen Sobue
- Department of Neurology, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, 466-8550, Japan
| | - S Marc Breedlove
- Neuroscience Program, Michigan State University, 108 Giltner Hall, East Lansing, MI, 48824-1115, USA
| | - Cynthia L Jordan
- Neuroscience Program, Michigan State University, 108 Giltner Hall, East Lansing, MI, 48824-1115, USA.,Physiology Department, Michigan State University, 108 Giltner Hall, East Lansing, MI, 48824-1115, USA
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32
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Yang T, Nie Z, Shu H, Kuang Y, Chen X, Cheng J, Yu S, Liu H. The Role of BDNF on Neural Plasticity in Depression. Front Cell Neurosci 2020; 14:82. [PMID: 32351365 PMCID: PMC7174655 DOI: 10.3389/fncel.2020.00082] [Citation(s) in RCA: 176] [Impact Index Per Article: 44.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2019] [Accepted: 03/20/2020] [Indexed: 01/01/2023] Open
Abstract
Using behavioral, pharmacological, and molecular methods, lots of studies reveal that depression is closely related to the abnormal neural plasticity processes occurring in the prefrontal cortex and limbic system such as the hippocampus and amygdala. Meanwhile, functions of the brain-derived neurotrophic factor (BDNF) and the other neurotrophins in the pathogenesis of depression are well known. The maladaptive neuroplastic in depression may be related to alterations in the levels of neurotrophic factors, which play a central role in plasticity. Enhancement of neurotrophic factors signaling has great potential in therapy for depression. This review highlights the relevance of neurotrophic factors mediated neural plasticity and pathophysiology of depression. These studies reviewed here may suggest new possible targets for antidepressant drugs such as neurotrophins, their receptors, and relevant signaling pathways, and agents facilitating the activation of gene expression and increasing the transcription of neurotrophic factors in the brain.
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Affiliation(s)
- Tao Yang
- Department of Neurosurgery, The General Hospital of Western Theater Command, Chengdu, China
| | - Zheng Nie
- Department of Anatomy and Histology and Embryology, Regeneration Key Lab of Sichuan Province, Chengdu Medical College, Chengdu, China
| | - Haifeng Shu
- Department of Neurosurgery, The General Hospital of Western Theater Command, Chengdu, China
| | - Yongqin Kuang
- Department of Neurosurgery, The General Hospital of Western Theater Command, Chengdu, China
| | - Xin Chen
- Department of Neurosurgery, The General Hospital of Western Theater Command, Chengdu, China
| | - Jingmin Cheng
- Department of Neurosurgery, The General Hospital of Western Theater Command, Chengdu, China
| | - Sixun Yu
- Department of Neurosurgery, The General Hospital of Western Theater Command, Chengdu, China
| | - Huiying Liu
- Department of Respiratory and Critical Care Diseases, The Fifth Medical Center of PLA General Hospital, Beijing, China
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Podyma B, Johnson DA, Sipe L, Remcho TP, Battin K, Liu Y, Yoon SO, Deppmann CD, Güler AD. The p75 neurotrophin receptor in AgRP neurons is necessary for homeostatic feeding and food anticipation. eLife 2020; 9:e52623. [PMID: 31995032 PMCID: PMC7056271 DOI: 10.7554/elife.52623] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2019] [Accepted: 01/27/2020] [Indexed: 12/31/2022] Open
Abstract
Networks of neurons control feeding and activity patterns by integrating internal metabolic signals of energy balance with external environmental cues such as time-of-day. Proper circadian alignment of feeding behavior is necessary to prevent metabolic disease, and thus it is imperative that molecular players that maintain neuronal coordination of energy homeostasis are identified. Here, we demonstrate that mice lacking the p75 neurotrophin receptor, p75NTR, decrease their feeding and food anticipatory behavior (FAA) in response to daytime, but not nighttime, restricted feeding. These effects lead to increased weight loss, but do not require p75NTR during development. Instead, p75NTR is required for fasting-induced activation of neurons within the arcuate hypothalamus. Indeed, p75NTR specifically in AgRP neurons is required for FAA in response to daytime restricted feeding. These findings establish p75NTR as a novel regulator gating behavioral response to food scarcity and time-of-day dependence of circadian food anticipation.
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Affiliation(s)
- Brandon Podyma
- Department of BiologyUniversity of VirginiaCharlottesvilleUnited States
| | - Dove-Anna Johnson
- Department of BiologyUniversity of VirginiaCharlottesvilleUnited States
| | - Laura Sipe
- Department of BiologyUniversity of VirginiaCharlottesvilleUnited States
| | | | - Katherine Battin
- Department of BiologyUniversity of VirginiaCharlottesvilleUnited States
| | - Yuxi Liu
- Department of Biological Chemistry and PharmacologyThe Ohio State University College of MedicineColumbusUnited States
| | - Sung Ok Yoon
- Department of Biological Chemistry and PharmacologyThe Ohio State University College of MedicineColumbusUnited States
| | | | - Ali Deniz Güler
- Department of BiologyUniversity of VirginiaCharlottesvilleUnited States
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Hausburg MA, Banton KL, Roman PE, Salgado F, Baek P, Waxman MJ, Tanner A, Yoder J, Bar-Or D. Effects of propofol on ischemia-reperfusion and traumatic brain injury. J Crit Care 2019; 56:281-287. [PMID: 32001426 DOI: 10.1016/j.jcrc.2019.12.021] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2019] [Revised: 12/07/2019] [Accepted: 12/24/2019] [Indexed: 12/14/2022]
Abstract
Oxidative stress exacerbates brain damage following ischemia-reperfusion and traumatic brain injury (TBI). Management of TBI and critically ill patients commonly involves use of propofol, a sedation medication that acts as a general anesthetic with inherent antioxidant properties. Here we review available evidence from animal model systems and clinical studies that propofol protects against ischemia-reperfusion injury. However, evidence of propofol toxicity in humans exists and manifests as a rare complication, "propofol infusion syndrome" (PRIS). Evidence in animal models suggests that brain injury induces expression of the p75 neurotrophin receptor (p75NTR), which is associated with proapoptotic signaling. p75NTR-mediated apoptosis of neurons is further exacerbated by propofol's superinduction of p75NTR and concomitant inhibition of neurotrophin processing. Propofol is toxic to neurons but not astrocytes, a type of glial cell. Evidence suggests that propofol protects astrocytes from oxidative stress and stimulates astroglial-mediated protection of neurons. One may speculate that in brain injury patients under sedation/anesthesia, propofol provides brain tissue protection or aids in recovery by enhancing astrocyte function. Nevertheless, our understanding of neurologic recovery versus long-term neurological sequelae leading to neurodegeneration is poor, and it is also conceivable that propofol plays a partial as yet unrecognized role in long-term impairment of the injured brain.
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Affiliation(s)
- Melissa A Hausburg
- Trauma Research Department, Swedish Medical Center, 501 E Hampden, Englewood, CO 80113, USA; Trauma Research Department, St. Anthony Hospital, 11600 W 2nd Pl, Lakewood, CO 80228, USA; Trauma Research Department, Medical City Plano, 3901 W 15th St, Plano, TX 75075, USA; Trauma Research Department, Penrose Hospital, 2222 N Nevada Ave, Colorado Springs, CO 80907, USA; Trauma Research Department, Research Medical Center, 2316 E Meyer Blvd, Kansas City, MO 64132, USA; Trauma Research Department, Wesley Medical Center, 550 N Hillside St, Wichita, KS 67214, USA
| | - Kaysie L Banton
- Trauma Research Department, Swedish Medical Center, 501 E Hampden, Englewood, CO 80113, USA
| | - Phillip E Roman
- Trauma Research Department, St. Anthony Hospital, 11600 W 2nd Pl, Lakewood, CO 80228, USA; Department of Anesthesiology, St. Anthony Hospital, Lakewood, CO 80228, USA
| | - Fernando Salgado
- Trauma Research Department, Wesley Medical Center, 550 N Hillside St, Wichita, KS 67214, USA; Department of Anesthesiology, Wesley Medical Center, Wichita, KS 67214, USA
| | - Peter Baek
- Trauma Research Department, Medical City Plano, 3901 W 15th St, Plano, TX 75075, USA; Department of Anesthesiology, Medical City Plano, Plano, TX 75075, USA
| | - Michael J Waxman
- Department of Critical Care, Research Medical Center, Kansas City, MO 64132, USA
| | - Allen Tanner
- Trauma Research Department, Penrose Hospital, 2222 N Nevada Ave, Colorado Springs, CO 80907, USA
| | - Jeffrey Yoder
- Trauma Research Department, St. Anthony Hospital, 11600 W 2nd Pl, Lakewood, CO 80228, USA; Department of Anesthesiology, St. Anthony Hospital, Lakewood, CO 80228, USA
| | - David Bar-Or
- Trauma Research Department, Swedish Medical Center, 501 E Hampden, Englewood, CO 80113, USA; Trauma Research Department, St. Anthony Hospital, 11600 W 2nd Pl, Lakewood, CO 80228, USA; Trauma Research Department, Medical City Plano, 3901 W 15th St, Plano, TX 75075, USA; Trauma Research Department, Penrose Hospital, 2222 N Nevada Ave, Colorado Springs, CO 80907, USA; Trauma Research Department, Research Medical Center, 2316 E Meyer Blvd, Kansas City, MO 64132, USA; Trauma Research Department, Wesley Medical Center, 550 N Hillside St, Wichita, KS 67214, USA; Department of Molecular Biology, Rocky Vista University, 8401 S Chambers Rd, Parker, CO 80134, USA.
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Han F, Guan X, Guo W, Lu B. Therapeutic potential of a TrkB agonistic antibody for ischemic brain injury. Neurobiol Dis 2019; 127:570-581. [DOI: 10.1016/j.nbd.2019.04.009] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2019] [Revised: 04/04/2019] [Accepted: 04/10/2019] [Indexed: 12/20/2022] Open
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36
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Escudero CA, Cabeza C, Moya-Alvarado G, Maloney MT, Flores CM, Wu C, Court FA, Mobley WC, Bronfman FC. c-Jun N-terminal kinase (JNK)-dependent internalization and Rab5-dependent endocytic sorting mediate long-distance retrograde neuronal death induced by axonal BDNF-p75 signaling. Sci Rep 2019; 9:6070. [PMID: 30988348 PMCID: PMC6465280 DOI: 10.1038/s41598-019-42420-6] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2018] [Accepted: 03/25/2019] [Indexed: 02/01/2023] Open
Abstract
During the development of the sympathetic nervous system, signals from tropomyosin-related kinase receptors (Trks) and p75 neurotrophin receptors (p75) compete to regulate survival and connectivity. During this process, nerve growth factor (NGF)- TrkA signaling in axons communicates NGF-mediated trophic responses in signaling endosomes. Whether axonal p75 signaling contributes to neuronal death and how signaling endosomes contribute to p75 signaling has not been established. Using compartmentalized sympathetic neuronal cultures (CSCGs) as a model, we observed that the addition of BDNF to axons increased the transport of p75 and induced death of sympathetic neurons in a dynein-dependent manner. In cell bodies, internalization of p75 required the activity of JNK, a downstream kinase mediating p75 death signaling in neurons. Additionally, the activity of Rab5, the key GTPase regulating early endosomes, was required for p75 death signaling. In axons, JNK and Rab5 were required for retrograde transport and death signaling mediated by axonal BDNF-p75 in CSCGs. JNK was also required for the proper axonal transport of p75-positive endosomes. Thus, our findings provide evidence that the activation of JNK by p75 in cell bodies and axons is required for internalization to a Rab5-positive signaling endosome and the further propagation of p75-dependent neuronal death signals.
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Affiliation(s)
- C A Escudero
- Center for Aging and Regeneration (CARE UC) and Department of Physiology, Faculty of Biological Sciences, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - C Cabeza
- Center for Aging and Regeneration (CARE UC) and Department of Physiology, Faculty of Biological Sciences, Pontificia Universidad Católica de Chile, Santiago, Chile.,Center of Cellular and Integrative Physiology, Faculty of Medicine, Clínica Alemana, Universidad del Desarrollo, Santiago, Chile
| | - G Moya-Alvarado
- Center for Aging and Regeneration (CARE UC) and Department of Physiology, Faculty of Biological Sciences, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - M T Maloney
- Department of Neurology and Neurological Sciences, Stanford University School of Medicine, Stanford, CA, USA
| | - C M Flores
- Center for Aging and Regeneration (CARE UC) and Department of Physiology, Faculty of Biological Sciences, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - C Wu
- Department of Neurosciences, University of California, San Diego, La Jolla, California, 92093, USA
| | - F A Court
- Center for Integrative Biology, Faculty of Sciences, Universidad Mayor, Santiago, Chile and FONDAP Center for Geroscience, Brain Health and Metabolism, Santiago, Chile
| | - W C Mobley
- Department of Neurosciences, University of California, San Diego, La Jolla, California, 92093, USA
| | - F C Bronfman
- Center for Aging and Regeneration (CARE UC) and Department of Physiology, Faculty of Biological Sciences, Pontificia Universidad Católica de Chile, Santiago, Chile.
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Guo Y, Duan M, Wang X, Gao J, Guan Z, Zhang M. Early events in rabies virus infection—Attachment, entry, and intracellular trafficking. Virus Res 2019; 263:217-225. [DOI: 10.1016/j.virusres.2019.02.006] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2018] [Revised: 01/28/2019] [Accepted: 02/13/2019] [Indexed: 12/20/2022]
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Pellegatta M, Taveggia C. The Complex Work of Proteases and Secretases in Wallerian Degeneration: Beyond Neuregulin-1. Front Cell Neurosci 2019; 13:93. [PMID: 30949030 PMCID: PMC6436609 DOI: 10.3389/fncel.2019.00093] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2018] [Accepted: 02/26/2019] [Indexed: 01/24/2023] Open
Abstract
After damage, axons in the peripheral nervous system (PNS) regenerate and regrow following a process termed Wallerian degeneration, but the regenerative process is often incomplete and usually the system does not reach full recovery. Key steps to the creation of a permissive environment for axonal regrowth are the trans-differentiation of Schwann cells and the remodeling of the extracellular matrix (ECM). In this review article, we will discuss how proteases and secretases promote effective regeneration and remyelination. We will detail how they control neuregulin-1 (NRG-1) activity at the post-translational level, as the concerted action of alpha, beta and gamma secretases cooperates to balance activating and inhibitory signals necessary for physiological myelination and remyelination. In addition, we will discuss the role of other proteases in nerve repair, among which A Disintegrin And Metalloproteinases (ADAMs) and gamma-secretases substrates. Moreover, we will present how matrix metalloproteinases (MMPs) and proteases of the blood coagulation cascade participate in forming newly synthetized myelin and in regulating axonal regeneration. Overall, we will highlight how a deeper comprehension of secretases and proteases mechanism of action in Wallerian degeneration might be useful to develop new therapies with the potential of readily and efficiently improve the regenerative process.
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Affiliation(s)
- Marta Pellegatta
- Division of Neuroscience and INSPE at IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Carla Taveggia
- Division of Neuroscience and INSPE at IRCCS San Raffaele Scientific Institute, Milan, Italy
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39
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Abdanipour A, Moradi F, Fakheri F, Ghorbanlou M, Nejatbakhsh R. The effect of lithium chloride on BDNF, NT3, and their receptor mRNA levels in the spinal contusion rat models. Neurol Res 2019; 41:577-583. [DOI: 10.1080/01616412.2019.1588507] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Alireza Abdanipour
- Department of Anatomy, School of Medicine, Zanjan University of Medical Sciences (ZUMS), Zanjan, Iran
| | - Fatemeh Moradi
- Department of Anatomy, School of Medicine, Zanjan University of Medical Sciences (ZUMS), Zanjan, Iran
| | - Farzaneh Fakheri
- Department of Biology, Science and Research Branch, Islamic Azad University, Tehran, Iran
- Young Researchers and Elite Club, Zanjan Branch, Islamic Azad University, Zanjan, Iran
| | - Mehrdad Ghorbanlou
- Department of Anatomy, School of Medicine, Zanjan University of Medical Sciences (ZUMS), Zanjan, Iran
| | - Reza Nejatbakhsh
- Department of Anatomy, School of Medicine, Zanjan University of Medical Sciences (ZUMS), Zanjan, Iran
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40
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Alcaraz MJ, Guillén MI, Ferrándiz ML. Emerging therapeutic agents in osteoarthritis. Biochem Pharmacol 2019; 165:4-16. [PMID: 30826327 DOI: 10.1016/j.bcp.2019.02.034] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2019] [Accepted: 02/28/2019] [Indexed: 12/27/2022]
Abstract
Osteoarthritis (OA) is the most common joint disorder and a leading cause of disability. Current treatments for OA can improve symptoms but do not delay the progression of disease. In the last years, much effort has been devoted to developing new treatments for OA focused on pain control, inflammatory mediators or degradation of articular tissues. Although promising results have been obtained in ex vivo studies and animal models of OA, few of these agents have completed clinical trials. Available clinical data support the interest of nerve growth factor as a target in pain control as well as the disease-modifying potential of inhibitors of Wnt signaling or catabolic enzymes such as aggrecanases and cathepsin K, and anabolic strategies like fibroblast growth factor-18 or cellular therapies. Carefully controlled studies in patients selected according to OA phenotypes and with a long follow-up will help to confirm the relevance of these new approaches as emerging therapeutic treatments in OA.
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Affiliation(s)
- María José Alcaraz
- Instituto Interuniversitario de Investigación de Reconocimiento Molecular y Desarrollo Tecnológico (IDM), Universitat Politècnica de València, Universitat de València, Av. Vicent A. Estellés s/n, 46100 Burjasot, Valencia, Spain.
| | - María Isabel Guillén
- Instituto Interuniversitario de Investigación de Reconocimiento Molecular y Desarrollo Tecnológico (IDM), Universitat Politècnica de València, Universitat de València, Av. Vicent A. Estellés s/n, 46100 Burjasot, Valencia, Spain; Department of Pharmacy, Cardenal Herrera-CEU University, Ed. Ciencias de la Salud, 46115 Alfara, Valencia, Spain
| | - María Luisa Ferrándiz
- Instituto Interuniversitario de Investigación de Reconocimiento Molecular y Desarrollo Tecnológico (IDM), Universitat Politècnica de València, Universitat de València, Av. Vicent A. Estellés s/n, 46100 Burjasot, Valencia, Spain
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41
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Popova NK, Naumenko VS. Neuronal and behavioral plasticity: the role of serotonin and BDNF systems tandem. Expert Opin Ther Targets 2019; 23:227-239. [DOI: 10.1080/14728222.2019.1572747] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Nina K. Popova
- Department of Behavioral Neurogenomics, Federal Research Center Institute of Cytology and Genetics, Siberian Division of the Russian Academy of Science, Novosibirsk, Russia
| | - Vladimir S. Naumenko
- Department of Behavioral Neurogenomics, Federal Research Center Institute of Cytology and Genetics, Siberian Division of the Russian Academy of Science, Novosibirsk, Russia
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42
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Brain-Derived Neurotrophin and TrkB in Head and Neck Squamous Cell Carcinoma. Int J Mol Sci 2019; 20:ijms20020272. [PMID: 30641914 PMCID: PMC6359060 DOI: 10.3390/ijms20020272] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2018] [Revised: 01/03/2019] [Accepted: 01/05/2019] [Indexed: 12/17/2022] Open
Abstract
We hypothesized that in head and neck squamous cell carcinoma (HNSCC), the neurotrophin brain-derived neurotrophic factor (BDNF) and its high affinity receptor TrkB regulate tumor cell survival, invasion, and therapy resistance. We used in situ hybridization for BDNF and immunohistochemistry (IHC) for TrkB in 131 HNSCC samples. Brain-derived neurotrophic factor was highly expressed in normal mucosa in HNSCC tissue and in cell lines, whereas only 42.74% of HNSCC tissue was TrkB+. One fourth of HNSCC cases was human papilloma virus (HPV)− positive, but the TrkB IHC frequency was not different in HPV-positive (HPV+) and negative cases. The UPCI-SCC090 cells expressed constitutive levels of TrkB. Transforming-growth-factor-β1 (1 ng/mL TGF-β1) induced TrkB in a subpopulation of SCC-25 cells. A single 10-µg/mL mitomycin C treatment in UPCI-SCC090 cells induced apoptosis and BDNF did not rescue them. The SCC-25 cells were resistant to the MMC treatment, and their growth decreased after TGF-β1 treatment, but was restored by BDNF if it followed TGF-β1. Taken together, BDNF might be ineffective in HPV+ HNSCC patients. In HPV− HNSCC patients, tumor cells did not die after chemotherapeutic challenge and BDNF with TGF-β1 could improve tumor cell survival and contribute to worse patient prognosis.
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43
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Donnelly CR, Gabreski NA, Suh EB, Chowdhury M, Pierchala BA. Non-canonical Ret signaling augments p75-mediated cell death in developing sympathetic neurons. J Cell Biol 2018; 217:3237-3253. [PMID: 30018091 PMCID: PMC6122988 DOI: 10.1083/jcb.201703120] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2017] [Revised: 12/15/2017] [Accepted: 06/11/2018] [Indexed: 01/13/2023] Open
Abstract
Programmed cell death (PCD) is an evolutionarily conserved process critical in sculpting many organ systems, yet the underlying mechanisms remain poorly understood. Here, we investigated the interactions of pro-survival and pro-apoptotic receptors in PCD using the sympathetic nervous system as a model. We demonstrate that Ret, a receptor tyrosine kinase required for the survival of many neuronal populations, is restricted to a subset of degenerating neurons that rapidly undergo apoptosis. Pro-apoptotic conditions induce Ret to associate with the death receptor p75. Genetic deletion of p75 within Ret+ neurons, and deletion of Ret during PCD, inhibit apoptosis both in vitro and in vivo. Mechanistically, Ret inhibits nerve growth factor (NGF)-mediated survival of sympathetic neurons. Removal of Ret disrupts NGF-mediated TrkA ubiquitination, leading to increased cell surface levels of TrkA, thereby potentiating survival signaling. Additionally, Ret deletion significantly impairs p75 regulated intramembrane proteolysis cleavage, leading to reduced activation of downstream apoptotic effectors. Collectively, these results indicate that Ret acts non-canonically to augment p75-mediated apoptosis.
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Affiliation(s)
| | - Nicole A Gabreski
- Department of Biologic and Materials Sciences, University of Michigan, Ann Arbor, MI
| | - Esther B Suh
- Department of Biologic and Materials Sciences, University of Michigan, Ann Arbor, MI
| | - Monzurul Chowdhury
- Department of Biologic and Materials Sciences, University of Michigan, Ann Arbor, MI
| | - Brian A Pierchala
- Department of Biologic and Materials Sciences, University of Michigan, Ann Arbor, MI
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Umemori J, Winkel F, Didio G, Llach Pou M, Castrén E. iPlasticity: Induced juvenile-like plasticity in the adult brain as a mechanism of antidepressants. Psychiatry Clin Neurosci 2018; 72:633-653. [PMID: 29802758 PMCID: PMC6174980 DOI: 10.1111/pcn.12683] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 04/25/2018] [Indexed: 12/11/2022]
Abstract
The network hypothesis of depression proposes that mood disorders reflect problems in information processing within particular neural networks. Antidepressants (AD), including selective serotonin reuptake inhibitors (SSRI), function by gradually improving information processing within these networks. AD have been shown to induce a state of juvenile-like plasticity comparable to that observed during developmental critical periods: Such critical-period-like plasticity allows brain networks to better adapt to extrinsic and intrinsic signals. We have coined this drug-induced state of juvenile-like plasticity 'iPlasticity.' A combination of iPlasticity induced by chronic SSRI treatment together with training, rehabilitation, or psychotherapy improves symptoms of neuropsychiatric disorders and issues underlying the developmentally or genetically malfunctioning networks. We have proposed that iPlasticity might be a critical component of AD action. We have demonstrated that iPlasticity occurs in the visual cortex, fear erasure network, extinction of aggression caused by social isolation, and spatial reversal memory in rodent models. Chronic SSRI treatment is known to promote neurogenesis and to cause dematuration of granule cells in the dentate gyrus and of interneurons, especially parvalbumin interneurons enwrapped by perineuronal nets in the prefrontal cortex, visual cortex, and amygdala. Brain-derived neurotrophic factor (BDNF), via its receptor tropomyosin kinase receptor B, is involved in the processes of synaptic plasticity, including neurogenesis, neuronal differentiation, weight of synapses, and gene regulation of synaptic formation. BDNF can be activated by both chronic SSRI treatment and neuronal activity. Accordingly, the BDNF/tropomyosin kinase receptor B pathway is critical for iPlasticity, but further analyses will be needed to provide mechanical insight into the processes of iPlasticity.
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Affiliation(s)
- Juzoh Umemori
- Neuroscience Center, HiLIFEUniversity of HelsinkiHelsinkiFinland
| | - Frederike Winkel
- Neuroscience Center, HiLIFEUniversity of HelsinkiHelsinkiFinland
| | - Giuliano Didio
- Neuroscience Center, HiLIFEUniversity of HelsinkiHelsinkiFinland
| | - Maria Llach Pou
- Neuroscience Center, HiLIFEUniversity of HelsinkiHelsinkiFinland
| | - Eero Castrén
- Neuroscience Center, HiLIFEUniversity of HelsinkiHelsinkiFinland
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45
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Balkaya M, Cho S. Genetics of stroke recovery: BDNF val66met polymorphism in stroke recovery and its interaction with aging. Neurobiol Dis 2018; 126:36-46. [PMID: 30118755 DOI: 10.1016/j.nbd.2018.08.009] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2018] [Revised: 07/24/2018] [Accepted: 08/13/2018] [Indexed: 12/13/2022] Open
Abstract
Stroke leads to long term sensory, motor and cognitive impairments. Most patients experience some degree of spontaneous recovery which is mostly incomplete and varying greatly among individuals. The variation in recovery outcomes has been attributed to numerous factors including lesion size, corticospinal tract integrity, age, gender and race. It is well accepted that genetics play a crucial role in stroke incidence and accumulating evidence suggests that it is also a significant determinant in recovery. Among the number of genes and variations implicated in stroke recovery the val66met single nucleotide polymorphism (SNP) in the BDNF gene influences post-stroke plasticity in the most significant ways. Val66met is the most well characterized BDNF SNP and is common (40-50 % in Asian and 25-32% in Caucasian populations) in humans. It reduces activity-dependent BDNF release, dampens cortical plasticity and is implicated in numerous diseases. Earlier studies on the effects of val66met on stroke outcome and recovery presented primarily a maladaptive role. Novel findings however indicate a much more intricate interaction between val66met and stroke recovery which appears to be influenced by lesion location, post-stroke stage and age. This review will focus on the role of BDNF and val66met SNP in relation to stroke recovery and try to identify potential pathophysiologic mechanisms involved. The effects of age on val66met associated alterations in plasticity and potential consequences in terms of stroke are also discussed.
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Affiliation(s)
- Mustafa Balkaya
- Burke-Cornell Medical Research Institute, 785 Mamaroneck Ave, White Plains, NY 10605, USA; Feil Family Brain and Mind Research Institute, Weill Cornell Medicine at Burke Medical Research Institute, 785 Mamaroneck Ave, White Plains, NY 10605, USA
| | - Sunghee Cho
- Burke-Cornell Medical Research Institute, 785 Mamaroneck Ave, White Plains, NY 10605, USA; Feil Family Brain and Mind Research Institute, Weill Cornell Medicine at Burke Medical Research Institute, 785 Mamaroneck Ave, White Plains, NY 10605, USA.
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46
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Pathak A, Stanley EM, Hickman FE, Wallace N, Brewer B, Li D, Gluska S, Perlson E, Fuhrmann S, Akassoglou K, Bronfman F, Casaccia P, Burnette DT, Carter BD. Retrograde Degenerative Signaling Mediated by the p75 Neurotrophin Receptor Requires p150 Glued Deacetylation by Axonal HDAC1. Dev Cell 2018; 46:376-387.e7. [PMID: 30086304 PMCID: PMC6093198 DOI: 10.1016/j.devcel.2018.07.001] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2017] [Revised: 05/19/2018] [Accepted: 07/01/2018] [Indexed: 12/23/2022]
Abstract
During development, neurons undergo apoptosis if they do not receive adequate trophic support from tissues they innervate or when detrimental factors activate the p75 neurotrophin receptor (p75NTR) at their axon ends. Trophic factor deprivation (TFD) or activation of p75NTR in distal axons results in a retrograde degenerative signal. However, the nature of this signal and the regulation of its transport are poorly understood. Here, we identify p75NTR intracellular domain (ICD) and histone deacetylase 1 (HDAC1) as part of a retrograde pro-apoptotic signal generated in response to TFD or ligand binding to p75NTR in sympathetic neurons. We report an unconventional function of HDAC1 in retrograde transport of a degenerative signal and its constitutive presence in sympathetic axons. HDAC1 deacetylates dynactin subunit p150Glued, which enhances its interaction with dynein. These findings define p75NTR ICD as a retrograde degenerative signal and reveal p150Glued deacetylation as a unique mechanism regulating axonal transport.
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Affiliation(s)
- Amrita Pathak
- Department of Biochemistry, Vanderbilt University School of Medicine, Nashville, TN, USA; Vanderbilt Brain Institute, Vanderbilt University, Nashville, TN, USA
| | - Emily M Stanley
- Department of Biochemistry, Vanderbilt University School of Medicine, Nashville, TN, USA; Vanderbilt Brain Institute, Vanderbilt University, Nashville, TN, USA
| | - F Edward Hickman
- Department of Biochemistry, Vanderbilt University School of Medicine, Nashville, TN, USA; Vanderbilt Brain Institute, Vanderbilt University, Nashville, TN, USA
| | - Natalie Wallace
- Department of Biochemistry, Vanderbilt University School of Medicine, Nashville, TN, USA
| | - Bryson Brewer
- Vanderbilt University School of Engineering, Nashville, TN, USA
| | - Deyu Li
- Vanderbilt University School of Engineering, Nashville, TN, USA
| | - Shani Gluska
- Department of Physiology and Pharmacology, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel; Sagol School of Neuroscience, Tel Aviv University, Tel Aviv, Israel
| | - Eran Perlson
- Department of Physiology and Pharmacology, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel; Sagol School of Neuroscience, Tel Aviv University, Tel Aviv, Israel
| | - Sabine Fuhrmann
- Department of Cell & Developmental Biology, Vanderbilt University School of Medicine, Nashville, TN, USA; Department of Ophthalmology and Visual Sciences, Vanderbilt University School of Medicine, Nashville, TN, USA
| | - Katerina Akassoglou
- Gladstone Institute of Neurological Disease and Department of Neurology, University of California, San Francisco, CA, USA
| | - Francisca Bronfman
- Center for Ageing and Regeneration (CARE UC), Faculty of Biological Sciences, Department of Physiology, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Patrizia Casaccia
- Hunter College Department of Biology, Advanced Science Research Center at The Graduate Center of the City University of New York, New York, NY, USA
| | - Dylan T Burnette
- Department of Cell & Developmental Biology, Vanderbilt University School of Medicine, Nashville, TN, USA
| | - Bruce D Carter
- Department of Biochemistry, Vanderbilt University School of Medicine, Nashville, TN, USA; Vanderbilt Brain Institute, Vanderbilt University, Nashville, TN, USA.
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Kucharczyk M, Kurek A, Pomierny B, Detka J, Papp M, Tota K, Budziszewska B. The reduced level of growth factors in an animal model of depression is accompanied by regulated necrosis in the frontal cortex but not in the hippocampus. Psychoneuroendocrinology 2018; 94:121-133. [PMID: 29775875 DOI: 10.1016/j.psyneuen.2018.05.008] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/03/2017] [Revised: 03/02/2018] [Accepted: 05/03/2018] [Indexed: 12/18/2022]
Abstract
In the present study, we asked if the different types of stress alter neuronal plasticity markers distinctively in the frontal cortex (FCx) and in the hippocampus (Hp). To do so, we implemented various stress regimens to analyze changes evoked in these rat brain structures. We utilized several molecular techniques, including western blot, ELISA, quantitative RT-PCR, and various biochemical assays, to examine a range of proteins and subjected rats to behavioral tests to evaluate potential maladaptive alterations. A decrease in the level of growth factors in the FCx was accompanied by changes suggesting damage of this structure in the manner of regulated necrosis, while the Hp appeared to be protected. The observed changes in the brain region-specific alterations in neurotrophin processing may also depend on the period of life, in which an animal experiences stress and the duration of the stressful stimuli. We conclude that chronic stress during pregnancy can result in serious alterations in the functioning of the FCx of the progeny, facilitating the development of depressive behavior later in life. We also suggest that the altered energy metabolism may redirect pro-NGF/p75NTR/ATF2 signaling in the cortical neurons towards cellular death resembling regulated necrosis, rather than apoptosis.
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Affiliation(s)
- Mateusz Kucharczyk
- Department of Experimental Neuroendocrinology, Institute of Pharmacology, Polish Academy of Sciences, Kraków, Poland.
| | - Anna Kurek
- Department of Experimental Neuroendocrinology, Institute of Pharmacology, Polish Academy of Sciences, Kraków, Poland
| | - Bartosz Pomierny
- Department of Biochemical Toxicology, Chair of Toxicology, Faculty of Pharmacy, Medical College, Jagiellonian University, Kraków, Poland
| | - Jan Detka
- Department of Experimental Neuroendocrinology, Institute of Pharmacology, Polish Academy of Sciences, Kraków, Poland
| | - Mariusz Papp
- Department of Pharmacology, Institute of Pharmacology, Polish Academy of Sciences, Kraków, Poland
| | - Katarzyna Tota
- Department of Pharmacology, Institute of Pharmacology, Polish Academy of Sciences, Kraków, Poland
| | - Bogusława Budziszewska
- Department of Experimental Neuroendocrinology, Institute of Pharmacology, Polish Academy of Sciences, Kraków, Poland
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Simmons DA. Modulating Neurotrophin Receptor Signaling as a Therapeutic Strategy for Huntington's Disease. J Huntingtons Dis 2018; 6:303-325. [PMID: 29254102 PMCID: PMC5757655 DOI: 10.3233/jhd-170275] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Huntington’s disease (HD) is an autosomal dominant neurodegenerative disorder caused by CAG repeat expansions in the IT15 gene which encodes the huntingtin (HTT) protein. Currently, no treatments capable of preventing or slowing disease progression exist. Disease modifying therapeutics for HD would be expected to target a comprehensive set of degenerative processes given the diverse mechanisms contributing to HD pathogenesis including neuroinflammation, excitotoxicity, and transcription dysregulation. A major contributor to HD-related degeneration is mutant HTT-induced loss of neurotrophic support. Thus, neurotrophin (NT) receptors have emerged as therapeutic targets in HD. The considerable overlap between NT signaling networks and those dysregulated by mutant HTT provides strong theoretical support for this approach. This review will focus on the contributions of disrupted NT signaling in HD-related neurodegeneration and how targeting NT receptors to augment pro-survival signaling and/or to inhibit degenerative signaling may combat HD pathologies. Therapeutic strategies involving NT delivery, peptidomimetics, and the targeting of specific NT receptors (e.g., Trks or p75NTR), particularly with small molecule ligands, are discussed.
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Affiliation(s)
- Danielle A Simmons
- Department of Neurology and Neurological Sciences, Stanford University School of Medicine, Stanford, CA, USA
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Stepanichev M, Onufriev M, Aniol V, Freiman S, Brandstaetter H, Winter S, Lazareva N, Guekht A, Gulyaeva N. Effects of cerebrolysin on nerve growth factor system in the aging rat brain. Restor Neurol Neurosci 2018; 35:571-581. [PMID: 29172008 PMCID: PMC5701766 DOI: 10.3233/rnn-170724] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
BACKGROUND Aging is associated with some cognitive decline and enhanced risk of development of neurodegenerative diseases. It is assumed that altered metabolism and functions of neurotrophin systems may underlie these age-related functional and structural modifications. CerebrolysinTM (CBL) is a neuropeptide mixture with neurotrophic effects, which is widely used for the treatment of stroke and traumatic brain injury patients. It is also evident that CBL has an overall beneficial effect and a favorable benefit-risk ratio in patients with dementia. However, the effects of CBL on cognition and brain neurotrophin system in normal aging remain obscure. OBJECTIVE The aim of the present study was to examine the age-related modifications of endogenous neurotrophin systems in the brain of male Wistar rats and the effects of CBL on learning and memory as well as the levels neurotrophins and their receptors. METHODS Old (23-24 months) and young (2-3 months) male Wistar rats were used for the study. A half of animals were subjected to CBL course (2.5 ml/kg, 20 i.p. injections). Behavior of rats was studied using the open field test and simple water maze training. The contents of NGF and BDNF were studied using enzyme-linked immunosorbent assay; the expression of neurotrophin receptors was estimated by Western-blot analysis. RESULTS CBL treatment did not affect general status, age-related weight changes, general locomotor activity as well as general brain histology. In a water maze task, a minor effect of CBL was observed in old rats at the start of training and no effect on memory retention was found. Aging induced a decrease in neurotrophin receptors TrkA, TrkB, and p75NTR in the neocortex. CBL counteracted effects of aging on neocortical TrkA and p75NTR receptors and decreased expression of proNGF without influencing overall NGF levels. BDNF system was not significantly affected by CBL. CONCLUSION The pro-neuroplastic "antiaging" effects of CBL in the neocortex of old animals were generally related to the NGF rather than the BDNF system.
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Affiliation(s)
- Mikhail Stepanichev
- Institute of Higher Nervous Activity and Neurophysiology, Russian Academy of Sciences, Moscow, Russia
| | - Mikhail Onufriev
- Institute of Higher Nervous Activity and Neurophysiology, Russian Academy of Sciences, Moscow, Russia.,Moscow State Budgetary Health Institution "Moscow Research and Clinical Center for Neuropsychiatry" of the Healthcare Department of Moscow, Russia
| | - Viktor Aniol
- Institute of Higher Nervous Activity and Neurophysiology, Russian Academy of Sciences, Moscow, Russia
| | - Sofia Freiman
- Institute of Higher Nervous Activity and Neurophysiology, Russian Academy of Sciences, Moscow, Russia.,Moscow State Budgetary Health Institution "Moscow Research and Clinical Center for Neuropsychiatry" of the Healthcare Department of Moscow, Russia
| | - Hemma Brandstaetter
- Department of Research and Medical, EVER Neuro Pharma GmbH, Unterach, Austria
| | - Stefan Winter
- Department of Research and Medical, EVER Neuro Pharma GmbH, Unterach, Austria
| | - Natalia Lazareva
- Institute of Higher Nervous Activity and Neurophysiology, Russian Academy of Sciences, Moscow, Russia
| | - Alla Guekht
- Moscow State Budgetary Health Institution "Moscow Research and Clinical Center for Neuropsychiatry" of the Healthcare Department of Moscow, Russia
| | - Natalia Gulyaeva
- Institute of Higher Nervous Activity and Neurophysiology, Russian Academy of Sciences, Moscow, Russia.,Moscow State Budgetary Health Institution "Moscow Research and Clinical Center for Neuropsychiatry" of the Healthcare Department of Moscow, Russia
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Kim MJ, Vargas MR, Harlan BA, Killoy KM, Ball LE, Comte-Walters S, Gooz M, Yamamoto Y, Beckman JS, Barbeito L, Pehar M. Nitration and Glycation Turn Mature NGF into a Toxic Factor for Motor Neurons: A Role for p75 NTR and RAGE Signaling in ALS. Antioxid Redox Signal 2018; 28:1587-1602. [PMID: 28537420 PMCID: PMC5962334 DOI: 10.1089/ars.2016.6966] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
INTRODUCTION Glycating stress can occur together with oxidative stress during neurodegeneration and contribute to the pathogenic mechanism. Nerve growth factor (NGF) accumulates in several neurodegenerative diseases. Besides promoting survival, NGF can paradoxically induce cell death by signaling through the p75 neurotrophin receptor (p75NTR). The ability of NGF to induce cell death is increased by nitration of its tyrosine residues under conditions associated with increased peroxynitrite formation. AIMS Here we investigated whether glycation also changes the ability of NGF to induce cell death and assessed the ability of post-translational modified NGF to signal through the receptor for advanced glycation end products (RAGEs). We also explored the potential role of RAGE-p75NTR interaction in the motor neuron death occurring in amyotrophic lateral sclerosis (ALS) models. RESULTS Glycation promoted NGF oligomerization and ultimately allowed the modified neurotrophin to signal through RAGE and p75NTR to induce motor neuron death at low physiological concentrations. A similar mechanism was observed for nitrated NGF. We provide evidence for the interaction of RAGE with p75NTR at the cell surface. Moreover, we observed that post-translational modified NGF was present in the spinal cord of an ALS mouse model. In addition, NGF signaling through RAGE and p75NTR was involved in astrocyte-mediated motor neuron toxicity, a pathogenic feature of ALS. INNOVATION Oxidative modifications occurring under stress conditions can enhance the ability of mature NGF to induce neuronal death at physiologically relevant concentrations, and RAGE is a new p75NTR coreceptor contributing to this pathway. CONCLUSION Our results indicate that NGF-RAGE/p75NTR signaling may be a therapeutic target in ALS. Antioxid. Redox Signal. 28, 1587-1602.
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Affiliation(s)
- Mi Jin Kim
- 1 Department of Cell and Molecular Pharmacology and Experimental Therapeutics, Medical University of South Carolina , Charleston, South Carolina
| | - Marcelo R Vargas
- 1 Department of Cell and Molecular Pharmacology and Experimental Therapeutics, Medical University of South Carolina , Charleston, South Carolina
| | - Benjamin A Harlan
- 1 Department of Cell and Molecular Pharmacology and Experimental Therapeutics, Medical University of South Carolina , Charleston, South Carolina
| | - Kelby M Killoy
- 1 Department of Cell and Molecular Pharmacology and Experimental Therapeutics, Medical University of South Carolina , Charleston, South Carolina
| | - Lauren E Ball
- 1 Department of Cell and Molecular Pharmacology and Experimental Therapeutics, Medical University of South Carolina , Charleston, South Carolina
| | - Susana Comte-Walters
- 1 Department of Cell and Molecular Pharmacology and Experimental Therapeutics, Medical University of South Carolina , Charleston, South Carolina
| | - Monika Gooz
- 2 Department of Drug Discovery and Biomedical Sciences, Medical University of South Carolina , Charleston, South Carolina
| | - Yasuhiko Yamamoto
- 3 Department of Biochemistry and Molecular Vascular Biology, Kanazawa University Graduate School of Medical Sciences , Kanazawa, Japan
| | - Joseph S Beckman
- 4 Department of Biochemistry and Biophysics, Linus Pauling Institute, Environmental Health Sciences Center, Oregon State University , Corvallis, Oregon
| | - Luis Barbeito
- 5 Institut Pasteur de Montevideo , Montevideo, Uruguay
| | - Mariana Pehar
- 1 Department of Cell and Molecular Pharmacology and Experimental Therapeutics, Medical University of South Carolina , Charleston, South Carolina
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