1
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Huang V, Roem J, Ng DK, McElrath Schwartz J, Everett AD, Padmanabhan N, Romero D, Joe J, Campbell C, Sigal GB, Wohlstadter JN, Bembea MM. Exploratory factor analysis yields grouping of brain injury biomarkers significantly associated with outcomes in neonatal and pediatric ECMO. Sci Rep 2024; 14:10790. [PMID: 38734737 PMCID: PMC11088671 DOI: 10.1038/s41598-024-61388-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2024] [Accepted: 05/06/2024] [Indexed: 05/13/2024] Open
Abstract
In this two-center prospective cohort study of children on ECMO, we assessed a panel of plasma brain injury biomarkers using exploratory factor analysis (EFA) to evaluate their interplay and association with outcomes. Biomarker concentrations were measured daily for the first 3 days of ECMO support in 95 participants. Unfavorable composite outcome was defined as in-hospital mortality or discharge Pediatric Cerebral Performance Category > 2 with decline ≥ 1 point from baseline. EFA grouped 11 biomarkers into three factors. Factor 1 comprised markers of cellular brain injury (NSE, BDNF, GFAP, S100β, MCP1, VILIP-1, neurogranin); Factor 2 comprised markers related to vascular processes (vWF, PDGFRβ, NPTX1); and Factor 3 comprised the BDNF/MMP-9 cellular pathway. Multivariable logistic models demonstrated that higher Factor 1 and 2 scores were associated with higher odds of unfavorable outcome (adjusted OR 2.88 [1.61, 5.66] and 1.89 [1.12, 3.43], respectively). Conversely, higher Factor 3 scores were associated with lower odds of unfavorable outcome (adjusted OR 0.54 [0.31, 0.88]), which is biologically plausible given the role of BDNF in neuroplasticity. Application of EFA on plasma brain injury biomarkers in children on ECMO yielded grouping of biomarkers into three factors that were significantly associated with unfavorable outcome, suggesting future potential as prognostic instruments.
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Affiliation(s)
- Victoria Huang
- Department of Anesthesiology and Critical Care Medicine, Johns Hopkins University School of Medicine, 1800 Orleans Street, Bloomberg Suite 6321, Baltimore, MD, 21287, USA
| | - Jennifer Roem
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - Derek K Ng
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - Jamie McElrath Schwartz
- Department of Anesthesiology and Critical Care Medicine, Johns Hopkins University School of Medicine, 1800 Orleans Street, Bloomberg Suite 6321, Baltimore, MD, 21287, USA
| | - Allen D Everett
- Department of Pediatrics, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | | | | | | | | | | | | | - Melania M Bembea
- Department of Anesthesiology and Critical Care Medicine, Johns Hopkins University School of Medicine, 1800 Orleans Street, Bloomberg Suite 6321, Baltimore, MD, 21287, USA.
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2
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AlRuwaili R, Al-Kuraishy HM, Al-Gareeb AI, Ali NH, Alexiou A, Papadakis M, Saad HM, Batiha GES. The Possible Role of Brain-derived Neurotrophic Factor in Epilepsy. Neurochem Res 2024; 49:533-547. [PMID: 38006577 PMCID: PMC10884085 DOI: 10.1007/s11064-023-04064-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2023] [Revised: 11/11/2023] [Accepted: 11/14/2023] [Indexed: 11/27/2023]
Abstract
Epilepsy is a neurological disease characterized by repeated seizures. Despite of that the brain-derived neurotrophic factor (BDNF) is implicated in the pathogenesis of epileptogenesis and epilepsy, BDNF may have a neuroprotective effect against epilepsy. Thus, the goal of the present review was to highlight the protective and detrimental roles of BDNF in epilepsy. In this review, we also try to find the relation of BDNF with other signaling pathways and cellular processes including autophagy, mTOR pathway, progranulin (PGN), and α-Synuclein (α-Syn) which negatively and positively regulate BDNF/tyrosine kinase receptor B (TrkB) signaling pathway. Therefore, the assessment of BDNF levels in epilepsy should be related to other neuronal signaling pathways and types of epilepsy in both preclinical and clinical studies. In conclusion, there is a strong controversy concerning the potential role of BDNF in epilepsy. Therefore, preclinical, molecular, and clinical studies are warranted in this regard.
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Affiliation(s)
- Raed AlRuwaili
- Department of Internal Medicine, College of Medicine, Jouf University, Sakaka, Saudi Arabia
| | - Hayder M Al-Kuraishy
- Department of Clinical Pharmacology and Medicine, College of Medicine, ALmustansiriyia University, P.O. Box 14132, Baghdad, Iraq
| | - Ali I Al-Gareeb
- Department of Clinical Pharmacology and Medicine, College of Medicine, ALmustansiriyia University, P.O. Box 14132, Baghdad, Iraq
| | - Naif H Ali
- Department of Internal Medicine, Medical College, Najran University, Najran, Saudi Arabia
| | - Athanasios Alexiou
- University Centre for Research & Development, Chandigarh University, Chandigarh-Ludhiana Highway, Mohali, Punjab, India
- Department of Research & Development, Funogen, Athens, Greece
- Department of Research & Development, AFNP Med, Wien, 1030, Austria
- Department of Science and Engineering, Novel Global Community Educational Foundation, Hebersham, NSW, 2770, Australia
| | - Marios Papadakis
- Department of Surgery II, University Hospital Witten-Herdecke, University of Witten-Herdecke, Heusnerstrasse 40, 42283, Wuppertal, Germany.
| | - Hebatallah M Saad
- Department of Pathology, Faculty of Veterinary Medicine, Matrouh University, Matrouh, 51744, Egypt.
| | - Gaber El-Saber Batiha
- Department of Pharmacology and Therapeutics, Faculty of Veterinary Medicine, Damanhour University, Damanhour, AlBeheira, 22511, Egypt.
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3
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Sales AJ, Gobira PH, Pedrazzi JFC, Silveira JR, Del Bel E, Gomes FV, Guimarães FS. Doxycycline diminishes the rewarding and psychomotor effects induced by morphine and cocaine. Prog Neuropsychopharmacol Biol Psychiatry 2024; 128:110870. [PMID: 37793480 DOI: 10.1016/j.pnpbp.2023.110870] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Revised: 09/22/2023] [Accepted: 10/01/2023] [Indexed: 10/06/2023]
Abstract
Few pharmacological treatments are available for substance use disorders (SUDs). Neuroplastic changes induced by increased activity of metalloproteinase (MMP) enzymes in the brain are among the several molecular processes that may play a role in drug addiction. Doxycycline, a widely used tetracycline that crosses the blood-brain barrier, inhibits MMPs and has been investigated as a potential treatment for brain disorders. However, the effects of doxycycline on rewarding properties of drugs of abuse remain not investigated. Here, we tested the effects of low doses of doxycycline on the rewarding effects of morphine and cocaine in conditioned place preference (CPP) and locomotor sensitization in mice. Acute doxycycline (10 mg/kg) attenuated the cocaine-induced CPP and hyperlocomotion. Repeated doxycycline (10 mg/kg) blocked hyperlocomotion and attenuated the locomotor sensitization induced by cocaine. It also decreased the rewarding effects in the CPP induced by morphine and cocaine. Our results suggest that doxycycline could be repurposed for treating SUDs.
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Affiliation(s)
- Amanda J Sales
- Department of Pharmacology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, SP, Brazil
| | - Pedro H Gobira
- Department of Biomolecular Sciences, School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP, Brazil
| | - João F C Pedrazzi
- Departament of Neuroscience, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, SP, Brazil
| | - João R Silveira
- Department of Pharmacology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, SP, Brazil
| | - Elaine Del Bel
- Departament of Phisiology, Faculty of Odontology of Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP, Brazil
| | - Felipe V Gomes
- Department of Pharmacology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, SP, Brazil
| | - Francisco S Guimarães
- Department of Pharmacology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, SP, Brazil.
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4
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Mengis T, Herger N, Heggli I, Devan J, Spirig JM, Laux CJ, Brunner F, Farshad M, Distler O, Dudli S. Bone marrow stromal cells in Modic type 1 changes promote neurite outgrowth. Front Cell Dev Biol 2023; 11:1286280. [PMID: 37965581 PMCID: PMC10641389 DOI: 10.3389/fcell.2023.1286280] [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: 08/31/2023] [Accepted: 10/10/2023] [Indexed: 11/16/2023] Open
Abstract
The pain in patients with Modic type 1 changes (MC1) is often due to vertebral body endplate pain, which is linked to abnormal neurite outgrowth in the vertebral body and adjacent endplate. The aim of this study was to understand the role of MC1 bone marrow stromal cells (BMSCs) in neurite outgrowth. BMSCs can produce neurotrophic factors, which have been shown to be pro-fibrotic in MC1, and expand in the perivascular space where sensory vertebral nerves are located. The study involved the exploration of the BMSC transcriptome in MC1, co-culture of MC1 BMSCs with the neuroblastoma cell line SH-SY5Y, analysis of supernatant cytokines, and analysis of gene expression changes in co-cultured SH-SY5Y. Transcriptomic analysis revealed upregulated brain-derived neurotrophic factor (BDNF) signaling-related pathways. Co-cultures of MC1 BMSCs with SH-SY5Y cells resulted in increased neurite sprouting compared to co-cultures with control BMSCs. The concentration of BDNF and other cytokines supporting neuron growth was increased in MC1 vs. control BMSC co-culture supernatants. Taken together, these findings show that MC1 BMSCs provide strong pro-neurotrophic cues to nearby neurons and could be a relevant disease-modifying treatment target.
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Affiliation(s)
- Tamara Mengis
- Center of Experimental Rheumatology, Department of Rheumatology, University Hospital Zurich, University of Zurich, Zürich, Switzerland
- Department of Physical Medicine and Rheumatology, Balgrist University Hospital, University of Zurich, Zürich, Switzerland
| | - Nick Herger
- Center of Experimental Rheumatology, Department of Rheumatology, University Hospital Zurich, University of Zurich, Zürich, Switzerland
- Department of Physical Medicine and Rheumatology, Balgrist University Hospital, University of Zurich, Zürich, Switzerland
| | - Irina Heggli
- Center of Experimental Rheumatology, Department of Rheumatology, University Hospital Zurich, University of Zurich, Zürich, Switzerland
- Department of Physical Medicine and Rheumatology, Balgrist University Hospital, University of Zurich, Zürich, Switzerland
| | - Jan Devan
- Center of Experimental Rheumatology, Department of Rheumatology, University Hospital Zurich, University of Zurich, Zürich, Switzerland
- Department of Physical Medicine and Rheumatology, Balgrist University Hospital, University of Zurich, Zürich, Switzerland
| | - José Miguel Spirig
- Department of Orthopedics, Balgrist University Hospital, University of Zurich, Zürich, Switzerland
| | - Christoph J. Laux
- Department of Orthopedics, Balgrist University Hospital, University of Zurich, Zürich, Switzerland
| | - Florian Brunner
- Department of Physical Medicine and Rheumatology, Balgrist University Hospital, University of Zurich, Zürich, Switzerland
| | - Mazda Farshad
- Department of Orthopedics, Balgrist University Hospital, University of Zurich, Zürich, Switzerland
| | - Oliver Distler
- Center of Experimental Rheumatology, Department of Rheumatology, University Hospital Zurich, University of Zurich, Zürich, Switzerland
| | - Stefan Dudli
- Center of Experimental Rheumatology, Department of Rheumatology, University Hospital Zurich, University of Zurich, Zürich, Switzerland
- Department of Physical Medicine and Rheumatology, Balgrist University Hospital, University of Zurich, Zürich, Switzerland
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5
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Ray R, Goel S, Al Khashali H, Darweesh B, Haddad B, Wozniak C, Ranzenberger R, Khalil J, Guthrie J, Heyl D, Evans HG. Regulation of Soluble E-Cadherin Signaling in Non-Small-Cell Lung Cancer Cells by Nicotine, BDNF, and β-Adrenergic Receptor Ligands. Biomedicines 2023; 11:2555. [PMID: 37760996 PMCID: PMC10526367 DOI: 10.3390/biomedicines11092555] [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: 08/20/2023] [Revised: 09/11/2023] [Accepted: 09/15/2023] [Indexed: 09/29/2023] Open
Abstract
The ectodomain of the transmembrane protein E-cadherin can be cleaved and released in a soluble form referred to as soluble E-cadherin, or sE-cad, accounting for decreased E-cadherin levels at the cell surface. Among the proteases implicated in this cleavage are matrix metalloproteases (MMP), including MMP9. Opposite functions have been reported for full-length E-cadherin and sE-cad. In this study, we found increased MMP9 levels in the media of two non-small cell lung cancer (NSCLC) cell lines, A549 and H1299, treated with BDNF, nicotine, or epinephrine that were decreased upon cell treatment with the β-adrenergic receptor blocker propranolol. Increased MMP9 levels correlated with increased sE-cad levels in A549 cell media, and knockdown of MMP9 in A549 cells led to downregulation of sE-cad levels in the media. Previously, we reported that A549 and H1299 cell viability increased with nicotine and/or BDNF treatment and decreased upon treatment with propranolol. In investigating the function of sE-cad, we found that immunodepletion of sE-cad from the media of A549 cells untreated or treated with BDNF, nicotine, or epinephrine reduced activation of EGFR and IGF-1R, decreased PI3K and ERK1/2 activities, increased p53 activation, decreased cell viability, and increased apoptosis, while no effects were found using H1299 cells under all conditions tested.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | - Hedeel Guy Evans
- Chemistry Department, Eastern Michigan University, Ypsilanti, MI 48197, USA; (R.R.); (S.G.); (H.A.K.); (B.D.); (B.H.); (C.W.); (R.R.); (J.K.); (J.G.); (D.H.)
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6
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Esposito E, Licastro E, Cuomo O, Lo EH, Hayakawa K, Pignataro G. Postconditioning promotes recovery in the neurovascular unit after stroke. Front Cell Neurosci 2023; 17:1260389. [PMID: 37744881 PMCID: PMC10515625 DOI: 10.3389/fncel.2023.1260389] [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: 07/17/2023] [Accepted: 08/28/2023] [Indexed: 09/26/2023] Open
Abstract
Background and purpose Experimental studies suggest that ischemic postconditioning interferes with cell death mechanisms and reduces infarction during the acute phase after focal cerebral ischemia. Postconditioning may be a practically feasible way to promote stroke recovery, but many drawbacks prevent its clinical translation. First, all existing studies are mostly on acute 24 h outcomes. Second, the mechanisms of protection and augmented long-term benefits remain unclear. Our study aims to define some of the mechanisms that explain long-term benefits of improved recovery. Methods Male Sprague-Dawley rats were subjected to 100-min transient middle cerebral artery occlusion (MCAO) or postconditioning (100-min middle cerebral artery occlusion plus 10-min reperfusion plus 10-min reocclusion). After 3 days or 2 weeks, infarct volumes, western blot, and immunohistochemical markers of neurogenesis and angiogenesis were quantified. Fluorocitrate (FC) or saline were administrated ICV (intraventricular injection) every other day starting on day 5 after focal cerebral ischemia, animals were recovered for 2 weeks. Results After postconditioning BDNF protein expression levels increased compared to animals subjected to MCAO. Immunostaining showed that BDNF increased specifically in astrocytes. Moreover, when astrocytes were metabolically inhibited by fluorocitrate the postconditioning neuroprotective effect together with the postconditioning-dependent new angiogenesis and neurogenesis, were no longer observed. Conclusion These results suggest for the first time that therapeutic effects of postconditioning may involve the promotion of neurogenesis and angiogenic remodeling, via BDNF released by astrocytes, during the recovery phase after focal cerebral ischemia.
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Affiliation(s)
- Elga Esposito
- Neuroprotection Research Laboratories, Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Charlestown, MA, United States
- Consortium International pour la Recherche Circadienne sur l'AVC (CIRCA)
| | - Ester Licastro
- Neuroprotection Research Laboratories, Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Charlestown, MA, United States
- Division of Pharmacology, Department of Neuroscience, Reproductive and Dentistry Sciences, School of Medicine, University of Naples Federico II, Naples, Italy
| | - Ornella Cuomo
- Division of Pharmacology, Department of Neuroscience, Reproductive and Dentistry Sciences, School of Medicine, University of Naples Federico II, Naples, Italy
| | - Eng H. Lo
- Neuroprotection Research Laboratories, Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Charlestown, MA, United States
- Consortium International pour la Recherche Circadienne sur l'AVC (CIRCA)
| | - Kazuhide Hayakawa
- Neuroprotection Research Laboratories, Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Charlestown, MA, United States
| | - Giuseppe Pignataro
- Division of Pharmacology, Department of Neuroscience, Reproductive and Dentistry Sciences, School of Medicine, University of Naples Federico II, Naples, Italy
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7
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Covarrubias C, Cammisotto PG, Shamout S, Campeau L. Decrease in the Ratio proBDNF/BDNF in the Urine of Aging Female Patients with OAB. Metabolites 2023; 13:723. [PMID: 37367881 DOI: 10.3390/metabo13060723] [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: 05/04/2023] [Revised: 05/22/2023] [Accepted: 05/31/2023] [Indexed: 06/28/2023] Open
Abstract
Imbalance in the levels of neurotrophins, growth factors crucial in the development, function, and survival of neurons is commonly observed in many pathological states. Concentrations of brain-derived neurotrophic factor (BDNF) and its precursor (proBDNF) were measured in the urine of a cohort of aging female patients with overactive bladder disease (OAB). When reported to creatinine, levels were similar between OAB patients and healthy controls. However, the ratio proBDNF/BDNF was significantly decreased in the OAB group. Receiver operating characteristic (ROC) curve analysis of the ratio proBDNF/BDNF displayed a good diagnostic value for OAB (AUC = 0.729). Clinical questionnaires of symptom severity (OABSS and IIQ-7) were negatively correlated with this ratio. On the other hand, microRNAs (miRNA) involved in proBDNF gene translation were expressed at comparable levels between groups. However, urinary enzymatic activity of matrix metalloproteinase-9 (MMP-9), the enzyme that cleaves proBDNF into BDNF, was increased in OAB compared to controls. Levels of miR-491-5p, the main miRNA that downregulates MMP-9 synthesis, were greatly decreased in urine from OAB patients. These results suggest that the ratio proBDNF/BDNF could be useful in the phenotyping of OAB in an aging population, and the difference could originate from enhanced MMP-9 enzymatic activity rather than translational control.
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Affiliation(s)
| | | | - Samer Shamout
- Lady Davis Institute, McGill University, Montreal, QC H3A 0G4, Canada
| | - Lysanne Campeau
- Lady Davis Institute, McGill University, Montreal, QC H3A 0G4, Canada
- Urology Department, Jewish General Hospital, Montreal, QC H3T 1E2, Canada
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8
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Mehterov N, Minchev D, Gevezova M, Sarafian V, Maes M. Interactions Among Brain-Derived Neurotrophic Factor and Neuroimmune Pathways Are Key Components of the Major Psychiatric Disorders. Mol Neurobiol 2022; 59:4926-4952. [PMID: 35657457 DOI: 10.1007/s12035-022-02889-1] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Accepted: 05/17/2022] [Indexed: 10/25/2022]
Abstract
The purpose of this review is to summarize the current knowledge regarding the reciprocal associations between brain-derived neurotrophic factor (BDNF) and immune-inflammatory pathways and how these links may explain the involvement of this neurotrophin in the immune pathophysiology of mood disorders and schizophrenia. Toward this end, we delineated the protein-protein interaction (PPI) network centered around BDNF and searched PubMed, Scopus, Google Scholar, and Science Direct for papers dealing with the involvement of BDNF in the major psychosis, neurodevelopment, neuronal functions, and immune-inflammatory and related pathways. The PPI network was built based on the significant interactions of BDNF with neurotrophic (NTRK2, NTF4, and NGFR), immune (cytokines, STAT3, TRAF6), and cell-cell junction (CTNNB, CDH1) DEPs (differentially expressed proteins). Enrichment analysis shows that the most significant terms associated with this PPI network are the tyrosine kinase receptor (TRKR) and Src homology region two domain-containing phosphatase-2 (SHP2) pathways, tyrosine kinase receptor signaling pathways, positive regulation of kinase and transferase activity, cytokine signaling, and negative regulation of the immune response. The participation of BDNF in the immune response and its interactions with neuroprotective and cell-cell adhesion DEPs is probably a conserved regulatory process which protects against the many detrimental effects of immune activation and hyperinflammation including neurotoxicity. Lowered BDNF levels in mood disorders and schizophrenia (a) are associated with disruptions in neurotrophic signaling and activated immune-inflammatory pathways leading to neurotoxicity and (b) may interact with the reduced expression of other DEPs (CTNNB1, CDH1, or DISC1) leading to multiple aberrations in synapse and axonal functions.
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Affiliation(s)
- Nikolay Mehterov
- Department of Medical Biology, Medical University of Plovdiv, Plovdiv, Bulgaria.,Research Institute at Medical University of Plovdiv, Plovdiv, Bulgaria
| | - Danail Minchev
- Department of Medical Biology, Medical University of Plovdiv, Plovdiv, Bulgaria.,Research Institute at Medical University of Plovdiv, Plovdiv, Bulgaria
| | - Maria Gevezova
- Department of Medical Biology, Medical University of Plovdiv, Plovdiv, Bulgaria.,Research Institute at Medical University of Plovdiv, Plovdiv, Bulgaria
| | - Victoria Sarafian
- Department of Medical Biology, Medical University of Plovdiv, Plovdiv, Bulgaria.,Research Institute at Medical University of Plovdiv, Plovdiv, Bulgaria
| | - Michael Maes
- Faculty of Medicine, Department of Psychiatry, Chulalongkorn University, Bangkok, 10330, Thailand. .,Department of Psychiatry, Medical University of Plovdiv, Plovdiv, Bulgaria. .,Department of Psychiatry, IMPACT Strategic Research Centre, Deakin University, Geelong, VIC, Australia.
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9
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Iram T, Kern F, Kaur A, Myneni S, Morningstar AR, Shin H, Garcia MA, Yerra L, Palovics R, Yang AC, Hahn O, Lu N, Shuken SR, Haney MS, Lehallier B, Iyer M, Luo J, Zetterberg H, Keller A, Zuchero JB, Wyss-Coray T. Young CSF restores oligodendrogenesis and memory in aged mice via Fgf17. Nature 2022; 605:509-515. [PMID: 35545674 PMCID: PMC9377328 DOI: 10.1038/s41586-022-04722-0] [Citation(s) in RCA: 98] [Impact Index Per Article: 49.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Accepted: 04/04/2022] [Indexed: 12/15/2022]
Abstract
Recent understanding of how the systemic environment shapes the brain throughout life has led to numerous intervention strategies to slow brain ageing1-3. Cerebrospinal fluid (CSF) makes up the immediate environment of brain cells, providing them with nourishing compounds4,5. We discovered that infusing young CSF directly into aged brains improves memory function. Unbiased transcriptome analysis of the hippocampus identified oligodendrocytes to be most responsive to this rejuvenated CSF environment. We further showed that young CSF boosts oligodendrocyte progenitor cell (OPC) proliferation and differentiation in the aged hippocampus and in primary OPC cultures. Using SLAMseq to metabolically label nascent mRNA, we identified serum response factor (SRF), a transcription factor that drives actin cytoskeleton rearrangement, as a mediator of OPC proliferation following exposure to young CSF. With age, SRF expression decreases in hippocampal OPCs, and the pathway is induced by acute injection with young CSF. We screened for potential SRF activators in CSF and found that fibroblast growth factor 17 (Fgf17) infusion is sufficient to induce OPC proliferation and long-term memory consolidation in aged mice while Fgf17 blockade impairs cognition in young mice. These findings demonstrate the rejuvenating power of young CSF and identify Fgf17 as a key target to restore oligodendrocyte function in the ageing brain.
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Affiliation(s)
- Tal Iram
- Department of Neurology and Neurological Sciences, Stanford University School of Medicine, Stanford, California, USA.,Wu Tsai Neurosciences Institute, Stanford University School of Medicine, Stanford, California, USA,Correspondence to or
| | - Fabian Kern
- Department of Neurology and Neurological Sciences, Stanford University School of Medicine, Stanford, California, USA.,Chair for Clinical Bioinformatics, Saarland University, 66123 Saarbrücken, Germany.,Helmholtz Institute for Pharmaceutical Research Saarland (HIPS) - Helmholtz Centre for Infection Research (HZI), Saarland University Campus E8.1, Saarbrücken, Germany
| | - Achint Kaur
- Department of Neurology and Neurological Sciences, Stanford University School of Medicine, Stanford, California, USA.,Wu Tsai Neurosciences Institute, Stanford University School of Medicine, Stanford, California, USA
| | - Saket Myneni
- Department of Neurology and Neurological Sciences, Stanford University School of Medicine, Stanford, California, USA.,Wu Tsai Neurosciences Institute, Stanford University School of Medicine, Stanford, California, USA
| | - Allison R. Morningstar
- Department of Neurology and Neurological Sciences, Stanford University School of Medicine, Stanford, California, USA.,Wu Tsai Neurosciences Institute, Stanford University School of Medicine, Stanford, California, USA
| | - Heather Shin
- Department of Neurology and Neurological Sciences, Stanford University School of Medicine, Stanford, California, USA.,Wu Tsai Neurosciences Institute, Stanford University School of Medicine, Stanford, California, USA
| | - Miguel A. Garcia
- Department of Neurosurgery, Stanford University School of Medicine, Palo Alto, CA 94305, USA
| | - Lakshmi Yerra
- Palo Alto Veterans Institute for Research, Palo Alto, CA 94304
| | - Robert Palovics
- Department of Neurology and Neurological Sciences, Stanford University School of Medicine, Stanford, California, USA.,Wu Tsai Neurosciences Institute, Stanford University School of Medicine, Stanford, California, USA
| | - Andrew C. Yang
- Department of Neurology and Neurological Sciences, Stanford University School of Medicine, Stanford, California, USA.,Wu Tsai Neurosciences Institute, Stanford University School of Medicine, Stanford, California, USA
| | - Oliver Hahn
- Department of Neurology and Neurological Sciences, Stanford University School of Medicine, Stanford, California, USA.,Wu Tsai Neurosciences Institute, Stanford University School of Medicine, Stanford, California, USA
| | - Nannan Lu
- Department of Neurology and Neurological Sciences, Stanford University School of Medicine, Stanford, California, USA.,Wu Tsai Neurosciences Institute, Stanford University School of Medicine, Stanford, California, USA
| | - Steven R. Shuken
- Department of Neurology and Neurological Sciences, Stanford University School of Medicine, Stanford, California, USA.,Wu Tsai Neurosciences Institute, Stanford University School of Medicine, Stanford, California, USA,Department of Chemistry, Stanford University, Stanford, CA, USA
| | - Michael s. Haney
- Department of Neurology and Neurological Sciences, Stanford University School of Medicine, Stanford, California, USA.,Wu Tsai Neurosciences Institute, Stanford University School of Medicine, Stanford, California, USA
| | - Benoit Lehallier
- Department of Neurology and Neurological Sciences, Stanford University School of Medicine, Stanford, California, USA.,Wu Tsai Neurosciences Institute, Stanford University School of Medicine, Stanford, California, USA
| | - Manasi Iyer
- Department of Neurosurgery, Stanford University School of Medicine, Palo Alto, CA 94305, USA
| | - Jian Luo
- Department of Neurology and Neurological Sciences, Stanford University School of Medicine, Stanford, California, USA.,Palo Alto Veterans Institute for Research, Palo Alto, CA 94304
| | - Henrik Zetterberg
- Department of Psychiatry and Neurochemistry, Institute of Neuroscience and Physiology, the Sahlgrenska Academy at the University of Gothenburg, Mölndal, Sweden; Clinical Neurochemistry Laboratory, Sahlgrenska University Hospital, Mölndal, Sweden; Department of Neurodegenerative Disease, UCL Institute of Neurology, Queen Square, London, UK; UK Dementia Research Institute at UCL, London, UK
| | - Andreas Keller
- Department of Neurology and Neurological Sciences, Stanford University School of Medicine, Stanford, California, USA.,Chair for Clinical Bioinformatics, Saarland University, 66123 Saarbrücken, Germany.,Center for Bioinformatics, Saarland Informatics Campus, 66123 Saarbrücken, Germany
| | - J. Bradley Zuchero
- Department of Neurosurgery, Stanford University School of Medicine, Palo Alto, CA 94305, USA
| | - Tony Wyss-Coray
- Department of Neurology and Neurological Sciences, Stanford University School of Medicine, Stanford, California, USA.,Wu Tsai Neurosciences Institute, Stanford University School of Medicine, Stanford, California, USA,Paul F. Glenn Center for the Biology of Aging, Stanford University School of Medicine, Stanford, California, USA.,Correspondence to or
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10
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Neurotrophic Factors in Experimental Cerebral Acanthamoebiasis. Int J Mol Sci 2022; 23:ijms23094931. [PMID: 35563321 PMCID: PMC9103668 DOI: 10.3390/ijms23094931] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2022] [Revised: 04/26/2022] [Accepted: 04/27/2022] [Indexed: 12/10/2022] Open
Abstract
To date, no studies have addressed the role of neurotrophins (NTs) in Acanthamoeba spp. infections in the brain. Thus, to clarify the role of NTs in the cerebral cortex and hippocampus during experimental acanthamoebiasis in relation to the host immune status, the purpose of this study was to determine whether Acanthamoeba spp. may affect the concentration of brain-derived neurotrophic factor (BDNF), nerve growth factor (NGF), neurotrophin-3 (NT-3), and neurotrophin-4 (NT-4) in brain structures. Our results suggest that at the beginning of infection in immunocompetent hosts, BDNF and NT-3 may reflect an endogenous attempt at neuroprotection against Acanthamoeba spp. infection. We also observed a pro-inflammatory effect of NGF during acanthamoebiasis in immunosuppressed hosts. This may provide important information for understanding the development of cerebral acanthamoebiasis related to the immunological status of the host. However, the pathogenesis of brain acanthamoebiasis is still poorly understood and documented and, therefore, requires further research.
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11
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Provasek VE, Mitra J, Malojirao VH, Hegde ML. DNA Double-Strand Breaks as Pathogenic Lesions in Neurological Disorders. Int J Mol Sci 2022; 23:ijms23094653. [PMID: 35563044 PMCID: PMC9099445 DOI: 10.3390/ijms23094653] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Revised: 04/19/2022] [Accepted: 04/19/2022] [Indexed: 02/07/2023] Open
Abstract
The damage and repair of DNA is a continuous process required to maintain genomic integrity. DNA double-strand breaks (DSBs) are the most lethal type of DNA damage and require timely repair by dedicated machinery. DSB repair is uniquely important to nondividing, post-mitotic cells of the central nervous system (CNS). These long-lived cells must rely on the intact genome for a lifetime while maintaining high metabolic activity. When these mechanisms fail, the loss of certain neuronal populations upset delicate neural networks required for higher cognition and disrupt vital motor functions. Mammalian cells engage with several different strategies to recognize and repair chromosomal DSBs based on the cellular context and cell cycle phase, including homologous recombination (HR)/homology-directed repair (HDR), microhomology-mediated end-joining (MMEJ), and the classic non-homologous end-joining (NHEJ). In addition to these repair pathways, a growing body of evidence has emphasized the importance of DNA damage response (DDR) signaling, and the involvement of heterogeneous nuclear ribonucleoprotein (hnRNP) family proteins in the repair of neuronal DSBs, many of which are linked to age-associated neurological disorders. In this review, we describe contemporary research characterizing the mechanistic roles of these non-canonical proteins in neuronal DSB repair, as well as their contributions to the etiopathogenesis of selected common neurological diseases.
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Affiliation(s)
- Vincent E. Provasek
- Department of Neurosurgery, Center for Neuroregeneration, Houston Methodist Research Institute, Houston, TX 77030, USA; (V.E.P.); (V.H.M.)
- College of Medicine, Texas A&M University, College Station, TX 77843, USA
| | - Joy Mitra
- Department of Neurosurgery, Center for Neuroregeneration, Houston Methodist Research Institute, Houston, TX 77030, USA; (V.E.P.); (V.H.M.)
- Correspondence: (J.M.); (M.L.H.)
| | - Vikas H. Malojirao
- Department of Neurosurgery, Center for Neuroregeneration, Houston Methodist Research Institute, Houston, TX 77030, USA; (V.E.P.); (V.H.M.)
| | - Muralidhar L. Hegde
- Department of Neurosurgery, Center for Neuroregeneration, Houston Methodist Research Institute, Houston, TX 77030, USA; (V.E.P.); (V.H.M.)
- College of Medicine, Texas A&M University, College Station, TX 77843, USA
- Department of Neurosciences, Weill Cornell Medical College, New York, NY 11021, USA
- Correspondence: (J.M.); (M.L.H.)
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12
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Savic G, Stevanovic I, Mihajlovic D, Jurisevic M, Gajovic N, Jovanovic I, Ninkovic M. MMP-9/BDNF ratio predicts more severe COVID-19 outcomes. Int J Med Sci 2022; 19:1903-1911. [PMID: 36438922 PMCID: PMC9682503 DOI: 10.7150/ijms.75337] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/20/2022] [Accepted: 09/16/2022] [Indexed: 01/24/2023] Open
Abstract
COVID-19 clinically manifests from asymptomatic to the critical range. Immune response provokes the pro-inflammatory interactions, which lead to the cytokines, reactive oxygen/nitrogen species, peptidases, and arachidonic acid metabolites enlargement and activation of coagulation components. Matrix metalloproteinases (MMPs) contribute to tissue destruction in the development of COVID-19. Due to the endothelial, systemic course of the disease, VEGF A participates actively in COVID-19 development, while neurotrophic and metabolic effects of BDNF recommends for the prediction of complications in COVID-19 patients. Searching for a marker that would improve and simplify the ranking in COVID-19, the study intended to evaluate the relationship of MMP-9 with VEGF A, BDNF, and MMP-8 with the COVID-19 severity. Upon admission to the hospital and before the therapy administration, 77 patients were classified into a mild, moderate, severe, or critical group. Due to the inflammatory stage in COVID-19, a comparison between groups showed related differences in leukocytes, neutrophils, lymphocytes, and platelets counts as anticipated. Only in seriously ill patients, there is a significant increase in the serum concentration of MMP-9, MMP-8, and VEGF A, while BDNF values did not show significant variations between groups. However, all those parameters positively correlated with each other. The ratio of MMP-9/BDNF markedly decreased in the severe and critically patients compared to the mild group. Testing the capability of this ratio to predict the COVID-19 stage by ROC curves, we found the MMP-9/BDNF could be a suitable marker for differentiating stages I/II (AUC 0.7597), stage I/III (AUC 0.9011), and stage I/IV (AUC 0.7727). Presented data describe for the first time the high-level systemic MMP-9/BDNF ratio in patients with COVID-19. This parameter could contribute to a more precise determination of the phase of the disease.
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Affiliation(s)
- Goran Savic
- Medical Faculty of the Military Medical Academy, University of Defence, Crnotravska 17, 11000 Belgrade, Serbia
| | - Ivana Stevanovic
- Medical Faculty of the Military Medical Academy, University of Defence, Crnotravska 17, 11000 Belgrade, Serbia.,Institute of Medical Research, Military Medical Academy, Crnotravska 17, Belgrade, Serbia
| | - Dusan Mihajlovic
- Medical Faculty of the Military Medical Academy, University of Defence, Crnotravska 17, 11000 Belgrade, Serbia
| | - Milena Jurisevic
- Department of Pharmacy, Faculty of Medical Sciences, University of Kragujevac, Svetozara Markovica 69, 34000 Kragujevac, Serbia
| | - Nevena Gajovic
- Centre for Molecular Medicine and Stem Cell Research, Faculty of Medical Sciences, University of Kragujevac, Svetozara Markovica 69, 34000 Kragujevac, Serbia
| | - Ivan Jovanovic
- Centre for Molecular Medicine and Stem Cell Research, Faculty of Medical Sciences, University of Kragujevac, Svetozara Markovica 69, 34000 Kragujevac, Serbia
| | - Milica Ninkovic
- Medical Faculty of the Military Medical Academy, University of Defence, Crnotravska 17, 11000 Belgrade, Serbia.,Institute of Medical Research, Military Medical Academy, Crnotravska 17, Belgrade, Serbia
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13
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Sharma A, Choi HK, Kim YK, Lee HJ. Delphinidin and Its Glycosides' War on Cancer: Preclinical Perspectives. Int J Mol Sci 2021; 22:11500. [PMID: 34768930 PMCID: PMC8583959 DOI: 10.3390/ijms222111500] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Revised: 10/19/2021] [Accepted: 10/21/2021] [Indexed: 12/24/2022] Open
Abstract
Until now, several studies have looked at the issue of anthocyanin and cancer, namely the preventive and inhibitory effects of anthocyanins, as well as the underlying molecular processes. However, no targeted review is available regarding the anticarcinogenic effects of delphinidin and its glycosides on various cancers and their plausible molecular mechanisms. Considerable evidence shows significant anticancer properties of delphinidin-rich preparations and delphinidin alone both in vitro and in vivo. This review covers the in vitro and preclinical implications of delphinidin-mediated cell protection and cancer prevention; thus, we strongly recommend that delphinidin-rich preparations be further investigated as potential functional food, dietary antioxidant supplements, and natural health products targeting specific chronic diseases, including cancer. In addition to in vitro investigations, future research should focus on more animal and human studies to determine the true potential of delphinidin.
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Affiliation(s)
- Anshul Sharma
- Department of Food and Nutrition, College of Bionanotechnology, Gachon University, Seongnam-si 13120, Gyeonggi-do, Korea;
| | - Hyo-Kyoung Choi
- Korea Food Research Institute, Wanju-gun 55365, Jeollabuk-do, Korea;
| | - Yeon-Kye Kim
- Food Safety and Processing Research Division, National Institute of Fisheries Science, Gijang-eup, Busan 46083, Korea;
| | - Hae-Jeung Lee
- Department of Food and Nutrition, College of Bionanotechnology, Gachon University, Seongnam-si 13120, Gyeonggi-do, Korea;
- Institute for Aging and Clinical Nutrition Research, Gachon University, Seongnam-si 13120, Gyeonggi-do, Korea
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14
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Extracellular Metalloproteinases in the Plasticity of Excitatory and Inhibitory Synapses. Cells 2021; 10:cells10082055. [PMID: 34440823 PMCID: PMC8391609 DOI: 10.3390/cells10082055] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Revised: 08/03/2021] [Accepted: 08/05/2021] [Indexed: 02/07/2023] Open
Abstract
Long-term synaptic plasticity is shaped by the controlled reorganization of the synaptic proteome. A key component of this process is local proteolysis performed by the family of extracellular matrix metalloproteinases (MMPs). In recent years, considerable progress was achieved in identifying extracellular proteases involved in neuroplasticity phenomena and their protein substrates. Perisynaptic metalloproteinases regulate plastic changes at synapses through the processing of extracellular and membrane proteins. MMP9 was found to play a crucial role in excitatory synapses by controlling the NMDA-dependent LTP component. In addition, MMP3 regulates the L-type calcium channel-dependent form of LTP as well as the plasticity of neuronal excitability. Both MMP9 and MMP3 were implicated in memory and learning. Moreover, altered expression or mutations of different MMPs are associated with learning deficits and psychiatric disorders, including schizophrenia, addiction, or stress response. Contrary to excitatory drive, the investigation into the role of extracellular proteolysis in inhibitory synapses is only just beginning. Herein, we review the principal mechanisms of MMP involvement in the plasticity of excitatory transmission and the recently discovered role of proteolysis in inhibitory synapses. We discuss how different matrix metalloproteinases shape dynamics and turnover of synaptic adhesome and signal transduction pathways in neurons. Finally, we discuss future challenges in exploring synapse- and plasticity-specific functions of different metalloproteinases.
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15
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Martinelli S, Anderzhanova EA, Bajaj T, Wiechmann S, Dethloff F, Weckmann K, Heinz DE, Ebert T, Hartmann J, Geiger TM, Döngi M, Hafner K, Pöhlmann ML, Jollans L, Philipsen A, Schmidt SV, Schmidt U, Maccarrone G, Stein V, Hausch F, Turck CW, Schmidt MV, Gellner AK, Kuster B, Gassen NC. Stress-primed secretory autophagy promotes extracellular BDNF maturation by enhancing MMP9 secretion. Nat Commun 2021; 12:4643. [PMID: 34330919 PMCID: PMC8324795 DOI: 10.1038/s41467-021-24810-5] [Citation(s) in RCA: 51] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Accepted: 07/07/2021] [Indexed: 11/23/2022] Open
Abstract
The stress response is an essential mechanism for maintaining homeostasis, and its disruption is implicated in several psychiatric disorders. On the cellular level, stress activates, among other mechanisms, autophagy that regulates homeostasis through protein degradation and recycling. Secretory autophagy is a recently described pathway in which autophagosomes fuse with the plasma membrane rather than with lysosomes. Here, we demonstrate that glucocorticoid-mediated stress enhances secretory autophagy via the stress-responsive co-chaperone FK506-binding protein 51. We identify the matrix metalloproteinase 9 (MMP9) as one of the proteins secreted in response to stress. Using cellular assays and in vivo microdialysis, we further find that stress-enhanced MMP9 secretion increases the cleavage of pro-brain-derived neurotrophic factor (proBDNF) to its mature form (mBDNF). BDNF is essential for adult synaptic plasticity and its pathway is associated with major depression and posttraumatic stress disorder. These findings unravel a cellular stress adaptation mechanism that bears the potential of opening avenues for the understanding of the pathophysiology of stress-related disorders.
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Affiliation(s)
- Silvia Martinelli
- Department of Translational Research in Psychiatry, Max Planck Institute of Psychiatry, Munich, Germany.
| | - Elmira A Anderzhanova
- Research Group Neurohomeostasis, Department of Psychiatry and Psychotherapy, University of Bonn, Bonn, Germany
- Department of Stress Neurobiology and Neurogenetics, Max Planck Institute of Psychiatry, Munich, Germany
| | - Thomas Bajaj
- Research Group Neurohomeostasis, Department of Psychiatry and Psychotherapy, University of Bonn, Bonn, Germany
| | - Svenja Wiechmann
- Chair of Proteomics and Bioanalytics, Technical University of Munich, Emil-Erlenmeyer-Forum 5, Freising, Germany
- German Cancer Consortium (DKTK), Munich, Germany
- German Cancer Center (DKFZ), Heidelberg, Germany
| | - Frederik Dethloff
- Department of Translational Research in Psychiatry, Max Planck Institute of Psychiatry, Munich, Germany
- Metabolomics Core Facility, Max Planck Institute for Biology of Ageing, Cologne, Germany
| | - Katja Weckmann
- Department of Translational Research in Psychiatry, Max Planck Institute of Psychiatry, Munich, Germany
| | - Daniel E Heinz
- Research Group Neurohomeostasis, Department of Psychiatry and Psychotherapy, University of Bonn, Bonn, Germany
- Department of Stress Neurobiology and Neurogenetics, Max Planck Institute of Psychiatry, Munich, Germany
| | - Tim Ebert
- Research Group Neurohomeostasis, Department of Psychiatry and Psychotherapy, University of Bonn, Bonn, Germany
| | - Jakob Hartmann
- Department of Psychiatry, Harvard Medical School and McLean Hospital, Belmont, MA, USA
| | - Thomas M Geiger
- Institute for Organic Chemistry and Biochemistry, Technische Universität Darmstadt, Darmstadt, Germany
| | - Michael Döngi
- Institut für Physiologie II, University of Bonn, Bonn, Germany
| | - Kathrin Hafner
- Department of Translational Research in Psychiatry, Max Planck Institute of Psychiatry, Munich, Germany
| | - Max L Pöhlmann
- Research Group Neurobiology of Stress Resilience, Max Planck Institute of Psychiatry, Munich, Germany
| | - Lee Jollans
- Department of Translational Research in Psychiatry, Max Planck Institute of Psychiatry, Munich, Germany
| | - Alexandra Philipsen
- Department of Psychiatry and Psychotherapy, University of Bonn, Bonn, Germany
| | | | - Ulrike Schmidt
- Research Group Molecular and Clinical Psychotraumatology, Department of Psychiatry and Psychotherapy, Rheinische Friedrich-Wilhelms-Universität Bonn, Bonn, Germany
- Research Group Traumatic Stress & Neurodegeneration & PTSD Treatment Unit, Department of Psychiatry and Psychotherapy, University Medical Center Göttingen (UMG), Göttingen, Germany
- Department of Psychiatry and Neuropsychology, Maastricht University Medical Centre, School for Mental Health and Neuroscience, Maastricht, The Netherlands
| | - Giuseppina Maccarrone
- Department of Translational Research in Psychiatry, Max Planck Institute of Psychiatry, Munich, Germany
| | - Valentin Stein
- Institut für Physiologie II, University of Bonn, Bonn, Germany
| | - Felix Hausch
- Institute for Organic Chemistry and Biochemistry, Technische Universität Darmstadt, Darmstadt, Germany
| | - Christoph W Turck
- Department of Translational Research in Psychiatry, Max Planck Institute of Psychiatry, Munich, Germany
| | - Mathias V Schmidt
- Research Group Neurobiology of Stress Resilience, Max Planck Institute of Psychiatry, Munich, Germany
| | - Anne-Kathrin Gellner
- Institut für Physiologie II, University of Bonn, Bonn, Germany
- Department of Psychiatry and Psychotherapy, University of Bonn, Bonn, Germany
| | - Bernhard Kuster
- Chair of Proteomics and Bioanalytics, Technical University of Munich, Emil-Erlenmeyer-Forum 5, Freising, Germany
- German Cancer Consortium (DKTK), Munich, Germany
- German Cancer Center (DKFZ), Heidelberg, Germany
- Bavarian Center for Biomolecular Mass Spectrometry, Freising, Germany
| | - Nils C Gassen
- Department of Translational Research in Psychiatry, Max Planck Institute of Psychiatry, Munich, Germany.
- Research Group Neurohomeostasis, Department of Psychiatry and Psychotherapy, University of Bonn, Bonn, Germany.
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16
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Kaliszewska A, Allison J, Martini M, Arias N. Improving Age-Related Cognitive Decline through Dietary Interventions Targeting Mitochondrial Dysfunction. Int J Mol Sci 2021; 22:ijms22073574. [PMID: 33808221 PMCID: PMC8036520 DOI: 10.3390/ijms22073574] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2021] [Revised: 03/24/2021] [Accepted: 03/25/2021] [Indexed: 12/13/2022] Open
Abstract
Aging is inevitable and it is one of the major contributors to cognitive decline. However, the mechanisms underlying age-related cognitive decline are still the object of extensive research. At the biological level, it is unknown how the aging brain is subjected to progressive oxidative stress and neuroinflammation which determine, among others, mitochondrial dysfunction. The link between mitochondrial dysfunction and cognitive impairment is becoming ever more clear by the presence of significant neurological disturbances in human mitochondrial diseases. Possibly, the most important lifestyle factor determining mitochondrial functioning is nutrition. Therefore, with the present work, we review the latest findings disclosing a link between nutrition, mitochondrial functioning and cognition, and pave new ways to counteract cognitive decline in late adulthood through diet.
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Affiliation(s)
- Aleksandra Kaliszewska
- Department of Basic and Clinical Neuroscience, Institute of Psychiatry, Psychology and Neuroscience, King’s College London, Denmark Hill, London SE5 8AF, UK; (A.K.); (J.A.)
| | - Joseph Allison
- Department of Basic and Clinical Neuroscience, Institute of Psychiatry, Psychology and Neuroscience, King’s College London, Denmark Hill, London SE5 8AF, UK; (A.K.); (J.A.)
| | - Matteo Martini
- Department of Psychology, University of East London, London E154LZ, UK;
| | - Natalia Arias
- Department of Basic and Clinical Neuroscience, Institute of Psychiatry, Psychology and Neuroscience, King’s College London, Denmark Hill, London SE5 8AF, UK; (A.K.); (J.A.)
- Instituto de Neurociencias del Principado de Asturias (INEUROPA), 33005 Oviedo, Spain
- Correspondence:
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17
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Chignon A, Rosa M, Boulanger MC, Argaud D, Devillers R, Bon-Baret V, Mkannez G, Li Z, Rufiange A, Gaudreault N, Gosselin D, Thériault S, Bossé Y, Mathieu P. Enhancer-associated aortic valve stenosis risk locus 1p21.2 alters NFATC2 binding site and promotes fibrogenesis. iScience 2021; 24:102241. [PMID: 33748722 PMCID: PMC7970363 DOI: 10.1016/j.isci.2021.102241] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2020] [Revised: 02/01/2021] [Accepted: 02/24/2021] [Indexed: 11/24/2022] Open
Abstract
Genome-wide association studies for calcific aortic valve stenosis (CAVS) previously reported strong signal for noncoding variants at 1p21.2. Previous study using Mendelian randomization suggested that the locus controls the expression of PALMD encoding Palmdelphin (PALMD). However, the molecular regulation at the locus and the impact of PALMD on the biology of the aortic valve is presently unknown. 3D genetic mapping and CRISPR activation identified rs6702619 as being located in a distant-acting enhancer, which controls the expression of PALMD. DNA-binding assay showed that the risk variant modified the DNA shape, which prevented the recruitment of NFATC2 and lowered the expression of PALMD. In co-expression network analysis, a module encompassing PALMD was enriched in actin-based process. Mass spectrometry and functional assessment showed that PALMD is a regulator of actin polymerization. In turn, lower level of PALMD promoted the activation of myocardin-related transcription factor and fibrosis, a key pathobiological process underpinning CAVS.
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Affiliation(s)
- Arnaud Chignon
- Laboratory of Cardiovascular Pathobiology, Quebec Heart and Lung Institute/Research Center, Department of Surgery, Laval University, 2725 Chemin Ste-Foy, G1V-4G5, Québec City, QC, Canada
| | - Mickael Rosa
- Laboratory of Cardiovascular Pathobiology, Quebec Heart and Lung Institute/Research Center, Department of Surgery, Laval University, 2725 Chemin Ste-Foy, G1V-4G5, Québec City, QC, Canada
| | - Marie-Chloé Boulanger
- Laboratory of Cardiovascular Pathobiology, Quebec Heart and Lung Institute/Research Center, Department of Surgery, Laval University, 2725 Chemin Ste-Foy, G1V-4G5, Québec City, QC, Canada
| | - Déborah Argaud
- Laboratory of Cardiovascular Pathobiology, Quebec Heart and Lung Institute/Research Center, Department of Surgery, Laval University, 2725 Chemin Ste-Foy, G1V-4G5, Québec City, QC, Canada
| | - Romain Devillers
- Laboratory of Cardiovascular Pathobiology, Quebec Heart and Lung Institute/Research Center, Department of Surgery, Laval University, 2725 Chemin Ste-Foy, G1V-4G5, Québec City, QC, Canada
| | - Valentin Bon-Baret
- Laboratory of Cardiovascular Pathobiology, Quebec Heart and Lung Institute/Research Center, Department of Surgery, Laval University, 2725 Chemin Ste-Foy, G1V-4G5, Québec City, QC, Canada
| | - Ghada Mkannez
- Laboratory of Cardiovascular Pathobiology, Quebec Heart and Lung Institute/Research Center, Department of Surgery, Laval University, 2725 Chemin Ste-Foy, G1V-4G5, Québec City, QC, Canada
| | - Zhonglin Li
- Laboratory of Cardiovascular Pathobiology, Quebec Heart and Lung Institute/Research Center, Department of Surgery, Laval University, 2725 Chemin Ste-Foy, G1V-4G5, Québec City, QC, Canada
| | - Anne Rufiange
- Laboratory of Cardiovascular Pathobiology, Quebec Heart and Lung Institute/Research Center, Department of Surgery, Laval University, 2725 Chemin Ste-Foy, G1V-4G5, Québec City, QC, Canada
| | - Nathalie Gaudreault
- Laboratory of Cardiovascular Pathobiology, Quebec Heart and Lung Institute/Research Center, Department of Surgery, Laval University, 2725 Chemin Ste-Foy, G1V-4G5, Québec City, QC, Canada
| | - David Gosselin
- Department of Molecular Medicine, Laval University, Québec City, QC, Canada
| | - Sébastien Thériault
- Department of Molecular Biology, Medical Biochemistry and Pathology, Laval University, Québec City, QC, Canada
| | - Yohan Bossé
- Department of Molecular Medicine, Laval University, Québec City, QC, Canada
| | - Patrick Mathieu
- Laboratory of Cardiovascular Pathobiology, Quebec Heart and Lung Institute/Research Center, Department of Surgery, Laval University, 2725 Chemin Ste-Foy, G1V-4G5, Québec City, QC, Canada
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18
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Chupel MU, Minuzzi LG, Furtado GE, Santos ML, Ferreira JP, Filaire E, Teixeira AM. Taurine supplementation reduces myeloperoxidase and matrix-metalloproteinase-9 levels and improves the effects of exercise in cognition and physical fitness in older women. Amino Acids 2021; 53:333-345. [PMID: 33586039 DOI: 10.1007/s00726-021-02952-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Accepted: 02/02/2021] [Indexed: 02/07/2023]
Abstract
Immunosenescence contributes to cognitive impairment and neurodegeneration, and those conditions could be attenuated by non-pharmacological anti-inflammatory strategies, such as exercise and supplementation with the amino acid taurine. Since taurine body content decreases with aging, we investigated the effects of supplementation (alone and combined with exercise) on oxidative stress, extracellular matrix degradation, white blood cells, neurotrophins, cognition and physical fitness of elderly women. Forty-eight women (83.58 ± 6.98 years) were enrolled into exercise training only (EO: n = 13), taurine supplementation (TS: n = 12), exercise training + taurine supplementation (ETTS: n = 11), and control group (CG: n = 12). All interventions lasted 14 weeks. Exercise was applied twice a week, and taurine was given once a day (1.5 g). Data collection occurred before and after interventions with the determination of myeloperoxidase (MPO), matrix metalloproteinase-9 (MMP-9), brain-derived neurotrophic factor (BDNF), nerve growth factor (NGF) levels, and white blood cell counts (WBC). Montreal cognitive assessment (MoCA) and physical fitness tests were also evaluated. Concentration of MPO and MMP-9 decreased after intervention in TS (p < 0.05). No effect of time or time × group was observed for WBC parameters; however, univariate analysis showed a significant decrease in lymphocytes for TS, while an increase in monocytes occurred in the CG (p < 0.05). MoCA scores decreased over time in the CG (p < 0.05). Improvements in physical fitness occurred in ETTS (better agility and aerobic capacity), mostly likely due to exercise and boosted by taurine supplementation. No changes in BDNF levels were observed (p > 0.05), while NGF concentration were undetectable in almost subjects. Exercise together with taurine supplementation appears to be a valuable strategy to enhance health-related outcomes in older persons.
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Affiliation(s)
- Matheus Uba Chupel
- Faculty of Sport Science and Physical Education, Research Center for Sport and Physical Activity, CIDAF, University of Coimbra, Coimbra, Portugal.
| | - Luciele Guerra Minuzzi
- Faculty of Sport Science and Physical Education, Research Center for Sport and Physical Activity, CIDAF, University of Coimbra, Coimbra, Portugal.,Exercise and Immunometabolism Research Group, Universidade Estadual Paulista (UNESP), Presidente Prudente, São Paulo, Brazil
| | - Guilherme Eustáquio Furtado
- Faculty of Sport Science and Physical Education, Research Center for Sport and Physical Activity, CIDAF, University of Coimbra, Coimbra, Portugal.,Health Sciences Research Unit: Nursing (UICISA:E), Nursing School of Coimbra (ESEnfC), Coimbra, Portugal
| | - Mário Leonardo Santos
- Faculty of Sport Science and Physical Education, Research Center for Sport and Physical Activity, CIDAF, University of Coimbra, Coimbra, Portugal
| | - José Pedro Ferreira
- Faculty of Sport Science and Physical Education, Research Center for Sport and Physical Activity, CIDAF, University of Coimbra, Coimbra, Portugal
| | - Edith Filaire
- CIAMS Laboratory, EA 4532, University of Paris-Sud, University of Orléans, Orléans, France
| | - Ana Maria Teixeira
- Faculty of Sport Science and Physical Education, Research Center for Sport and Physical Activity, CIDAF, University of Coimbra, Coimbra, Portugal
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19
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Wang M, Xie Y, Qin D. Proteolytic cleavage of proBDNF to mBDNF in neuropsychiatric and neurodegenerative diseases. Brain Res Bull 2020; 166:172-184. [PMID: 33202257 DOI: 10.1016/j.brainresbull.2020.11.005] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Revised: 10/26/2020] [Accepted: 11/10/2020] [Indexed: 02/06/2023]
Abstract
Brain-derived neurotrophic factor (BDNF) is involved in pathophysiological mechanisms in neuropsychiatric diseases, including depression, anxiety, and schizophrenia (SZ), as well as neurodegenerative diseases like Parkinson's disease (PD) and Alzheimer's disease (AD). An imbalance or insufficient pro-brain-derived neurotrophic factor (proBDNF) transformation into mature BDNF (mBDNF) is potentially critical to the disease pathogenesis by impairing neuronal plasticity as suggested by results from many studies. Thus, promoting proBDNF transformation into mBDNF is therefore hypothesized as beneficial for the treatment of neuropsychiatric and neurodegenerative diseases. ProBDNF is proteolytically cleaved into the mBDNF by intracellular furin/proprotein convertases and extracellular proteases (plasmin/matrix metallopeptidases). This article reviews the mechanisms of the conversion of proBDNF to mBDNF and the research status of intracellular/extracellular proteolytic proteases for neuropsychiatric and neurodegenerative disorders.
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Affiliation(s)
- Mingyue Wang
- School of Traditional Chinese Pharmacy, Yunnan University of Chinese Medicine, Yunnan 650500, China
| | - Yuhuan Xie
- School of Basic Medical Sciences, Yunnan University of Chinese Medicine, Yunnan 650500, China.
| | - Dongdong Qin
- School of Basic Medical Sciences, Yunnan University of Chinese Medicine, Yunnan 650500, China.
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Jiao-Tai-Wan Ameliorates Depressive-Like Behavior through the A 1R Pathway in Ovariectomized Mice after Unpredictable Chronic Stress. BIOMED RESEARCH INTERNATIONAL 2020; 2020:1507561. [PMID: 33015153 PMCID: PMC7519999 DOI: 10.1155/2020/1507561] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/03/2020] [Revised: 08/26/2020] [Accepted: 08/31/2020] [Indexed: 11/17/2022]
Abstract
Objective This study was aimed at observing the effect Jiao-Tai-Wan in menopausal depression. Methods In this paper, we used ovariectomized mice subjected to chronic unpredictable stress as a menopausal depression model. After the chronic stress, mice were administrated with JTW (3.3 and 6.6mg/kg) and imipramine (10 mg/kg) for 14 days. On the 14th day, mice were subjected to the behavior test like the forced swim test, tail suspension test, and locomotor activity or were sacrificed to assess the protein changes in different brain regions. Results The administration of JTW at doses of 3.3 and 6.6mg/kg (p.o.) significantly shortened the duration of immobility in forced swim and tail suspension tests. There was no obvious difference in locomotor activity among all the groups. The western blot analysis data indicated that treatment with JTW (3.3 and 6.6 mg/kg, p.o.) prominently increased the A1R protein and the downstream protein ERK1/2 levels in the prefrontal cortex and hippocampus. However, the administration of JTW did not influence c-Fos protein in either the prefrontal cortex or hippocampus. Conclusion Our findings suggest that JTW plays a vital role in ameliorating menopausal depression symptoms in the A1R-ERK1/2 pathway in the prefrontal cortex and hippocampus.
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Lei T, Dong D, Song M, Sun Y, Liu X, Zhao H. Rislenemdaz treatment in the lateral habenula improves despair-like behavior in mice. Neuropsychopharmacology 2020; 45:1717-1724. [PMID: 32147667 PMCID: PMC7419533 DOI: 10.1038/s41386-020-0652-9] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/28/2019] [Revised: 01/03/2020] [Accepted: 03/02/2020] [Indexed: 01/19/2023]
Abstract
The specific GluN2B antagonist rislenemdaz (Ris; a.k.a. MK-0657 and CERC-301) is in phase II clinical trial as an antidepressive drug, but the working mechanism for its antidepressant effects is not clearly understood. Given the important role of the lateral habenula (LHb) in the pathogenesis of depression and the fact that GluN2B-containing N-methyl-D-aspartate receptors and brain-derived neurotrophic factor (BDNF) are expressed in the LHb, we conducted a study to examine whether the LHb mediates Ris' antidepressant effects in a chronic restraint stress (CRS)-induced depressive-like mouse model. In this study, Ris was administered systemically or locally into the LHb. Short hairpin RNAs were used to knockdown BDNF in the LHb. Depressive-like behaviors were assessed with the open field test, forced swimming test, tail suspension test, and sucrose preference test. Expression of GluN2B, BDNF, and c-Fos in the LHb were analyzed with western blotting and immunohistochemistry under condition with Ris administered systemically or with BDNF knockdown in the LHb. We found that both systemic and intra-LHb administration of Ris alleviated CRS-induced despair-like behavior and that systemic Ris reduced LHb expression of GluN2B, BDNF, and c-Fos (a neuronal activity marker). Specific knockdown of BDNF in the LHb prevented CRS-induced despair-like behavior, while preventing CRS-induced increases in BDNF and c-Fos expression in the LHb. Together these results suggest that Ris may exert its antidepressant effects through affecting the LHb such as downregulating BDNF expression in the LHb.
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Affiliation(s)
- Ting Lei
- grid.430605.40000 0004 1758 4110Neuroscience Research Center, First Hospital of Jilin University, Changchun, 130021 PR China ,grid.64924.3d0000 0004 1760 5735Department of Physiology, College of Basic Medical Sciences, Jilin University, Changchun, 130021 PR China
| | - Dan Dong
- grid.430605.40000 0004 1758 4110Department of Nephrology, First Hospital of Jilin University, Changchun, 130021 PR China
| | - Meiying Song
- grid.430605.40000 0004 1758 4110Neuroscience Research Center, First Hospital of Jilin University, Changchun, 130021 PR China
| | - Yanfei Sun
- grid.64924.3d0000 0004 1760 5735Department of Physiology, College of Basic Medical Sciences, Jilin University, Changchun, 130021 PR China
| | - Xiaofeng Liu
- grid.430605.40000 0004 1758 4110Neuroscience Research Center, First Hospital of Jilin University, Changchun, 130021 PR China
| | - Hua Zhao
- Neuroscience Research Center, First Hospital of Jilin University, Changchun, 130021, PR China. .,Department of Physiology, College of Basic Medical Sciences, Jilin University, Changchun, 130021, PR China.
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Ganguly K, Trigun SK. Mapping Connectome in Mammalian Brain: A Novel Approach by Bioengineering Neuro-Glia specific Vectors. J Theor Biol 2020; 496:110244. [PMID: 32171712 DOI: 10.1016/j.jtbi.2020.110244] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2019] [Revised: 03/08/2020] [Accepted: 03/10/2020] [Indexed: 10/24/2022]
Abstract
The connectome is the comprehensive map of the brain represented by wiring diagram of the full set of neuro-glia and synapses within entire brain of an organism. Some recent scientific efforts have successfully been made to visualize such map at neuro-glial networking level, however, capturing it as one unit of the entire brain have never been elucidated. Moreover, in order to derive structure-function relationship of different brain regions in response to a defined stimulus, there is a need to elucidate the connectome at single neuro-glial ensemble level after brain is challenged with the known memory function. This needs developing molecular approaches to tag neuro-glial activities in response to a conditioned brain function. Such approaches of using specific molecular tags have been tried to visualize independently neuron and glial specific events in response to a memory function, however, they could not tag the connectome together at single neuro-glia ensemble level. Therefore, there is a need to develop new methods for mapping entire connectome up to a single neuro-glial precision and resolution, with a purpose of tagging specific brain region accountable to execute a special memory formation process. The present hypothetical paper aims to propose a novel molecular method to generate the structural connectome at neuro-glial level in mice brain. Herein, we propose to tag the entire connectome at neuro-glia precision by generating a transgenic mice via transposing and recombining engineered novel "Neuro-Glia specific Vectors" (NGVs: specific to excitatory neurons, inhibitory neurons and glial cells) vis a vis "Transcriptional/ Translational Messenger (TMs: specific to metalloproteinases, MMP-9) coupled with different color protein tags, followed by the Clarity. Herein, the NGVs will be translated via Neuro-glia specific promoters, while TMs will be translated via endogenous MMP-9 promoter in all neuro-glial cells. The viability of all constructs will be verified in cortical/ hippocampal culture by inducing them to undergo chemically induced long term potentionation (cLTP) following visualization of different colored pattern. This will be further confirmed by Immunostaning, Western Blot and RT-PCR analysis. Additionally, in this approach, one can decipher the dynamics of molecular and cellular events associated with MMP-9 seretome by monitoring the trafficking of tagged endogenous MMP-9 protein after neuronal stimulation by cLTP in vitro. However, for visualizing complete connectome, the adult transgenic mice will be challenged with fear consolidation (Fear context and contextual cue) tests followed by Clarity coupled Light Sheet Microscopy to analyze neuro-glia ensemble following whole brain imaging.
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Affiliation(s)
- Krishnendu Ganguly
- Biochemistry and Molecular Biology Unit, Department of Zoology, Institute of Science, Banaras Hindu University, Varanasi, 221005 Uttar Pradesh, India
| | - Surendra Kumar Trigun
- Biochemistry and Molecular Biology Unit, Department of Zoology, Institute of Science, Banaras Hindu University, Varanasi, 221005 Uttar Pradesh, India.
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Li T, Yu Y, Song Y, Li X, Lan D, Zhang P, Xiao Y, Xing Y. Activation of BDNF/TrkB pathway promotes prostate cancer progression via induction of epithelial-mesenchymal transition and anoikis resistance. FASEB J 2020; 34:9087-9101. [PMID: 32390303 DOI: 10.1096/fj.201802159rrr] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2018] [Revised: 04/07/2020] [Accepted: 04/20/2020] [Indexed: 12/30/2022]
Abstract
Prostate cancer (PCa) is one of the most common malignant diseases in male worldwide, yet, the molecular mechanisms involved in PCa progression are still poorly understood. This study aimed to investigate the roles of the brain-derived neurotrophic factor/tropomyosin receptor kinase B (BDNF/TrkB) pathway in PCa progression. It was demonstrated by immunohistochemical analysis that both BDNF and TrkB were overexpressed in PCa tissues and elevated TrkB expression was tightly related with lymph node metastasis and advanced stage of PCa. In vitro studies showed that stimulation with rhBDNF or overexpression of TrkB in PCa cells promoted cell migration, invasion, and anoikis resistance. Overexpression of TrkB also resulted in epithelial-mesenchymal transition (EMT)-like transformation in cell morphology, whereas RNA interference-mediated TrkB depletion caused reversion of EMT. Further investigation demonstrated that protein kinase B (AKT) was responsible for BDNF/TrkB signaling-induced pro-migratory and pro-invasive effects, EMT, and anoikis resistance. Finally, in vivo studies confirmed that enhanced TrkB expression facilitated tumor growth, whereas downregulation of TrkB suppressed tumor growth. Our findings illustrate that BDNF/TrkB pathway is crucial for PCa progression, which may provide a novel therapeutic strategy for the treatment of advanced PCa.
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Affiliation(s)
- Tao Li
- Department of Urology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Ying Yu
- Department of Urology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yarong Song
- Department of Urology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xuechao Li
- Department of Urology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Dongyang Lan
- Department of Urology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Peng Zhang
- Department of Urology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yajun Xiao
- Department of Urology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yifei Xing
- Department of Urology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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Chandrasekaran V, Subramanian K, Kattimani S, Nandheesha H, Sarkar S, Penchilaiya V. Relationship between Matrix Metalloproteinase-9 and Lifetime History of Suicidal Behavior in Remitted Patients with Bipolar I Disorder: A Cross-Sectional Pilot Study. Indian J Psychol Med 2020; 42:200-202. [PMID: 32346265 PMCID: PMC7173662 DOI: 10.4103/ijpsym.ijpsym_320_19] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/30/2019] [Revised: 08/28/2019] [Accepted: 01/27/2020] [Indexed: 12/02/2022] Open
Affiliation(s)
| | - Karthick Subramanian
- Department of Psychiatry, Mahatma Gandhi Medical College and Research Institute, Sri Balaji Vidyapeeth (Deemed-to-be University), Puducherry, India
| | | | | | - Siddharth Sarkar
- Department of Psychiatry and NDDTC, All India Institute of Medical Sciences, New Delhi, India
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25
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Chopra S, Overall CM, Dufour A. Matrix metalloproteinases in the CNS: interferons get nervous. Cell Mol Life Sci 2019; 76:3083-3095. [PMID: 31165203 PMCID: PMC11105576 DOI: 10.1007/s00018-019-03171-9] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2019] [Revised: 05/22/2019] [Accepted: 05/29/2019] [Indexed: 12/14/2022]
Abstract
Matrix metalloproteinases (MMPs) have been investigated in context of chronic inflammatory diseases and demonstrated to degrade multiple components of the extracellular matrix (ECM). However, following several disappointing MMP clinical trials, recent studies have demonstrated unexpected novel functions of MMPs in viral infections and autoimmune inflammatory diseases in unanticipated locations. Thus, MMPs play additional functions in inflammation than just ECM degradation. They can regulate the activity of chemokines and cytokines of the immune response by precise proteolytic processing resulting in activation or inactivation of signaling pathways. MMPs have been demonstrated to cleave multiple substrates of the central nervous systems (CNS) and contribute to promoting and dampening diseases of the CNS. Initially, believed to be solely promoting pathologies, more than 10 MMPs to date have been shown to have protective functions. Here, we present some of the beneficial and destructive roles of MMPs in CNS pathologies and discuss strategies for the use of MMP inhibitors.
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Affiliation(s)
- Sameeksha Chopra
- Physiology and Pharmacology, Cumming School of Medicine, University of Calgary, Calgary, AB, T2N 4N1, Canada
- McCaig Institute for Bone and Joint Health, University of Calgary, Calgary, AB, T2N 4N1, Canada
| | - Christopher M Overall
- Department of Oral Biological and Medical Sciences, Faculty of Dentistry, University of British Columbia, Vancouver, BC, V6T 1Z3, Canada
- Centre for Blood Research, Vancouver, BC, V6T 1Z3, Canada
| | - Antoine Dufour
- Physiology and Pharmacology, Cumming School of Medicine, University of Calgary, Calgary, AB, T2N 4N1, Canada.
- McCaig Institute for Bone and Joint Health, University of Calgary, Calgary, AB, T2N 4N1, Canada.
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26
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Beroun A, Mitra S, Michaluk P, Pijet B, Stefaniuk M, Kaczmarek L. MMPs in learning and memory and neuropsychiatric disorders. Cell Mol Life Sci 2019; 76:3207-3228. [PMID: 31172215 PMCID: PMC6647627 DOI: 10.1007/s00018-019-03180-8] [Citation(s) in RCA: 121] [Impact Index Per Article: 24.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2019] [Revised: 05/27/2019] [Accepted: 05/29/2019] [Indexed: 12/20/2022]
Abstract
Matrix metalloproteinases (MMPs) are a group of over twenty proteases, operating chiefly extracellularly to cleave components of the extracellular matrix, cell adhesion molecules as well as cytokines and growth factors. By virtue of their expression and activity patterns in animal models and clinical investigations, as well as functional studies with gene knockouts and enzyme inhibitors, MMPs have been demonstrated to play a paramount role in many physiological and pathological processes in the brain. In particular, they have been shown to influence learning and memory processes, as well as major neuropsychiatric disorders such as schizophrenia, various kinds of addiction, epilepsy, fragile X syndrome, and depression. A possible link connecting all those conditions is either physiological or aberrant synaptic plasticity where some MMPs, e.g., MMP-9, have been demonstrated to contribute to the structural and functional reorganization of excitatory synapses that are located on dendritic spines. Another common theme linking the aforementioned pathological conditions is neuroinflammation and MMPs have also been shown to be important mediators of immune responses.
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Affiliation(s)
- Anna Beroun
- BRAINCITY, Nencki Institute, Pasteura 3, 02-093, Warsaw, Poland
| | | | - Piotr Michaluk
- BRAINCITY, Nencki Institute, Pasteura 3, 02-093, Warsaw, Poland
| | - Barbara Pijet
- BRAINCITY, Nencki Institute, Pasteura 3, 02-093, Warsaw, Poland
| | | | - Leszek Kaczmarek
- BRAINCITY, Nencki Institute, Pasteura 3, 02-093, Warsaw, Poland.
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27
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MMP-9-BDNF pathway is implicated in cognitive impairment of male individuals with methamphetamine addiction during early withdrawal. Behav Brain Res 2019; 366:29-35. [DOI: 10.1016/j.bbr.2019.03.020] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2018] [Revised: 03/04/2019] [Accepted: 03/11/2019] [Indexed: 12/23/2022]
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Kaminari A, Tsilibary EC, Tzinia A. A New Perspective in Utilizing MMP-9 as a Therapeutic Target for Alzheimer's Disease and Type 2 Diabetes Mellitus. J Alzheimers Dis 2019; 64:1-16. [PMID: 29865065 DOI: 10.3233/jad-180035] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Matrix metalloprotease 9 (MMP-9) is a 92 kDa type IV collagenase and a member of the family of endopeptidases. MMP-9 is involved in the degradation of extracellular matrix components, tissue remodeling, cellular receptor stripping, and processing of various signaling molecules. In the CNS, the effects of MMP-9 are quite complex, since it exerts beneficial effects including neurogenesis, angiogenesis, myelogenesis, axonal growth, and inhibition of apoptosis, or destructive effects including apoptosis, blood-brain barrier disorder, and demyelination. Likewise, in the periphery, physiological events, as the involvement of MMP-9 in angiogenesis, for instance in wound healing, can be turned into pathological, such as in tumor metastasis, depending on the state of the organism. Alzheimer's disease is a neurodegenerative disorder, characterized by amyloid accumulation and deposition in the brain. Amyloidogenesis, however, also occurs in diseases of the periphery, such as type II diabetes mellitus, where an analogous type of amyloid, is deposited in the pancreas. Interestingly, both diseases exhibit similar pathology and disease progression, with insulin resistance being a major common denominator. Hence, combinatorial strategies searching new or existing molecules to apply for therapeutic use for both diseases are gaining momentum. MMP-9 is extensively studied due to its association with a variety of physiological and pathological processes. Consequently, meticulous design could render MMP-9 into a potential therapeutic target for Alzheimer's disease and type 2 diabetes mellitus; two seemingly unrelated diseases.
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Affiliation(s)
- Archontia Kaminari
- Institute of Biosciences and Applications, National Center for Scientific Research "Demokritos", Agia Paraskevi, Athens, Greece
| | - Effie C Tsilibary
- Department of Neuroscience, University of Minnesota, Minneapolis, MN, USA
| | - Athina Tzinia
- Institute of Biosciences and Applications, National Center for Scientific Research "Demokritos", Agia Paraskevi, Athens, Greece
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Alaiyed S, Conant K. A Role for Matrix Metalloproteases in Antidepressant Efficacy. Front Mol Neurosci 2019; 12:117. [PMID: 31133801 PMCID: PMC6517485 DOI: 10.3389/fnmol.2019.00117] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2018] [Accepted: 04/24/2019] [Indexed: 01/10/2023] Open
Abstract
Major depressive disorder is a debilitating condition that affects approximately 15% of the United States population. Though the neurophysiological mechanisms that underlie this disorder are not completely understood, both human and rodent studies suggest that excitatory/inhibitory (E/I) balance is reduced with the depressive phenotype. In contrast, antidepressant efficacy in responsive individuals correlates with increased excitatory neurotransmission in select brain regions, suggesting that the restoration of E/I balance may improve mood. Enhanced excitatory transmission can occur through mechanisms including increased dendritic arborization and synapse formation in pyramidal neurons. Reduced activity of inhibitory neurons may also contribute to antidepressant efficacy. Consistent with this possibility, the fast-acting antidepressant ketamine may act by selective inhibition of glutamatergic input to GABA releasing parvalbumin (PV)-expressing interneurons. Recent work has also shown that a negative allosteric modulator of the GABA-A receptor α subunit can improve depression-related behavior. PV-expressing interneurons are thought to represent critical pacemakers for synchronous network events. These neurons also represent the predominant GABAergic neuronal population that is enveloped by the perineuronal net (PNN), a lattice-like structure that is thought to stabilize glutamatergic input to this cell type. Disruption of the PNN reduces PV excitability and increases pyramidal cell excitability. Various antidepressant medications increase the expression of matrix metalloproteinases (MMPs), enzymes that can increase pyramidal cell dendritic arborization and spine formation. MMPs can also cleave PNN proteins to reduce PV neuron-mediated inhibition. The present review will focus on mechanisms that may underlie antidepressant efficacy, with a focus on monoamines as facilitators of increased matrix metalloprotease (MMP) expression and activation. Discussion will include MMP-dependent effects on pyramidal cell structure and function, as well as MMP-dependent effects on PV expressing interneurons. We conclude with discussion of antidepressant use for those at risk for Alzheimer’s disease, and we also highlight areas for further study.
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Affiliation(s)
- Seham Alaiyed
- Department of Pharmacology, Georgetown University Medical Center, Washington, DC, United States
| | - Katherine Conant
- Department of Neuroscience, Georgetown University Medical Center, Washington, DC, United States
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30
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Morris-Blanco KC, Kim T, Bertogliat MJ, Mehta SL, Chokkalla AK, Vemuganti R. Inhibition of the Epigenetic Regulator REST Ameliorates Ischemic Brain Injury. Mol Neurobiol 2019; 56:2542-2550. [PMID: 30039336 PMCID: PMC6344325 DOI: 10.1007/s12035-018-1254-y] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2018] [Accepted: 07/17/2018] [Indexed: 01/03/2023]
Abstract
Cerebral ischemia is known to activate the repressor element-1 (RE1)-silencing transcription factor (REST) which silences neural genes via epigenetic remodeling and promotes neurodegeneration. We presently determined if REST inhibition derepresses target genes involved in synaptic plasticity and promotes functional outcome after experimental stroke. Following transient focal ischemia induced by middle cerebral artery occlusion (MCAO) in adult rats, REST expression was upregulated significantly from 12 h to 1 day of reperfusion compared to sham control. At 1 day of reperfusion, REST protein levels were increased and observed in the nuclei of neurons in the peri-infarct cortex. REST knockdown by intracerebral REST siRNA injection significantly reduced the post-ischemic expression of REST and increased the expression of several REST target genes, compared to control siRNA group. REST inhibition also decreased post-ischemic markers of apoptosis, reduced cortical infarct volume, and improved post-ischemic functional recovery on days 5 and 7 of reperfusion compared to the control siRNA group. REST knockdown resulted in a global increase in synaptic plasticity gene expression at 1 day of reperfusion compared to the control siRNA group and significantly increased several synaptic plasticity genes containing RE-1 sequences in their regulatory regions. These results demonstrate that direct inhibition of the epigenetic remodeler REST prevents secondary brain damage in the cortex and improves functional outcome potentially via de-repression of plasticity-related genes after stroke.
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Affiliation(s)
- Kahlilia C Morris-Blanco
- Department of Neurological Surgery, University of Wisconsin-Madison, Mail Code CSC-8660, 600 Highland Ave., Madison, WI, 53792, USA
- William S. Middleton Veterans Administration Hospital, Madison, WI, USA
| | - TaeHee Kim
- Department of Neurological Surgery, University of Wisconsin-Madison, Mail Code CSC-8660, 600 Highland Ave., Madison, WI, 53792, USA
- William S. Middleton Veterans Administration Hospital, Madison, WI, USA
| | - Mario J Bertogliat
- Department of Neurological Surgery, University of Wisconsin-Madison, Mail Code CSC-8660, 600 Highland Ave., Madison, WI, 53792, USA
| | - Suresh L Mehta
- Department of Neurological Surgery, University of Wisconsin-Madison, Mail Code CSC-8660, 600 Highland Ave., Madison, WI, 53792, USA
- William S. Middleton Veterans Administration Hospital, Madison, WI, USA
| | - Anil K Chokkalla
- Department of Neurological Surgery, University of Wisconsin-Madison, Mail Code CSC-8660, 600 Highland Ave., Madison, WI, 53792, USA
- Cellular and Molecular Pathology Program, University of Wisconsin-Madison, Madison, WI, USA
| | - Raghu Vemuganti
- Department of Neurological Surgery, University of Wisconsin-Madison, Mail Code CSC-8660, 600 Highland Ave., Madison, WI, 53792, USA.
- William S. Middleton Veterans Administration Hospital, Madison, WI, USA.
- Cellular and Molecular Pathology Program, University of Wisconsin-Madison, Madison, WI, USA.
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Jakob TF, Illing RB, Rosskothen-Kuhl N. Monaural Neonatal Deafness Induces Inhibition among Bilateral Auditory Networks under Binaural Activation. Neuroscience 2019; 400:1-16. [DOI: 10.1016/j.neuroscience.2018.12.033] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2018] [Revised: 12/18/2018] [Accepted: 12/19/2018] [Indexed: 11/15/2022]
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McGregor CE, English AW. The Role of BDNF in Peripheral Nerve Regeneration: Activity-Dependent Treatments and Val66Met. Front Cell Neurosci 2019; 12:522. [PMID: 30687012 PMCID: PMC6336700 DOI: 10.3389/fncel.2018.00522] [Citation(s) in RCA: 89] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2018] [Accepted: 12/14/2018] [Indexed: 11/29/2022] Open
Abstract
Despite the ability of peripheral nerves to spontaneously regenerate after injury, recovery is generally very poor. The neurotrophins have emerged as an important modulator of axon regeneration, particularly brain derived neurotrophic factor (BDNF). BDNF regulation and signaling, as well as its role in activity-dependent treatments including electrical stimulation, exercise, and optogenetic stimulation are discussed here. The importance of a single nucleotide polymorphism in the BDNF gene, Val66Met, which is present in 30% of the human population and may hinder the efficacy of these treatments in enhancing regeneration after injury is considered. Preliminary data are presented on the effectiveness of one such activity-dependent treatment, electrical stimulation, in enhancing axon regeneration in mice expressing the met allele of the Val66Met polymorphism.
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Affiliation(s)
- Claire Emma McGregor
- Department of Cell Biology, Emory University School of Medicine, Atlanta, GA, United States
| | - Arthur W English
- Department of Cell Biology, Emory University School of Medicine, Atlanta, GA, United States
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Chowdhury A, Caroni P. Time units for learning involving maintenance of system-wide cFos expression in neuronal assemblies. Nat Commun 2018; 9:4122. [PMID: 30297716 PMCID: PMC6175937 DOI: 10.1038/s41467-018-06516-3] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2018] [Accepted: 09/10/2018] [Indexed: 02/01/2023] Open
Abstract
Repeated experiences may be integrated in succession during a learning process, or they may be combined as a whole within dedicated time windows to possibly promote quality control. Here we show that in Pavlovian, incremental and incidental learning, related information acquired within time windows of 5 h is combined to determine what mice learn. Trials required for learning had to occur within 5 h, when learning-related shared cues could produce association and interference. Upon acquisition, cFos expression was elevated during 5 h throughout specific system-wide neuronal assemblies. Time window function depended on network activity and cFos expression. Local cFos activity was required for distant assembly recruitment through network activity and distant BDNF. Activation of learning-related cFos assemblies was sufficient and necessary for time window function. Therefore, learning processes consist of dedicated 5 h time windows (time units for learning), involving maintenance of system-wide neuronal assemblies through network activity and cFos expression. Learning often involves multiple exposures and trials, but it is not known whether those are treated independently, or integrated during dedicated time windows. Here, Chowdhury and Caroni show mice learn new associations during 5 h time windows, where related experiences are integrated in a process requiring coordinated cFos-activated neuronal assemblies.
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Affiliation(s)
- Ananya Chowdhury
- Friedrich Miescher Institut, Maulbeerstrasse 66, CH-4058, Basel, Switzerland.,Depts. of Neurobiology, Psychology, Psychiatry and Biobehavioral Sciences; Integrative Center for Learning and Memory; Brain Research Institute, UCLA, Los Angeles, CA, 90095, USA
| | - Pico Caroni
- Friedrich Miescher Institut, Maulbeerstrasse 66, CH-4058, Basel, Switzerland.
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Tanaka KZ, He H, Tomar A, Niisato K, Huang AJY, McHugh TJ. The hippocampal engram maps experience but not place. Science 2018; 361:392-397. [PMID: 30049878 DOI: 10.1126/science.aat5397] [Citation(s) in RCA: 119] [Impact Index Per Article: 19.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2018] [Accepted: 06/20/2018] [Indexed: 12/20/2022]
Abstract
Episodic memories are encoded by a sparse population of hippocampal neurons. In mice, optogenetic manipulation of this memory engram established that these neurons are indispensable and inducing for memory recall. However, little is known about their in vivo activity or precise role in memory. We found that during memory encoding, only a fraction of CA1 place cells function as engram neurons, distinguished by firing repetitive bursts paced at the theta frequency. During memory recall, these neurons remained highly context specific, yet demonstrated preferential remapping of their place fields. These data demonstrate a dissociation of precise spatial coding and contextual indexing by distinct hippocampal ensembles and suggest that the hippocampal engram serves as an index of memory content.
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Affiliation(s)
- Kazumasa Z Tanaka
- Laboratory for Circuit and Behavioral Physiology, RIKEN Center for Brain Science, 2-1 Hirosawa, Wakoshi, Saitama, Japan.
| | - Hongshen He
- Laboratory for Circuit and Behavioral Physiology, RIKEN Center for Brain Science, 2-1 Hirosawa, Wakoshi, Saitama, Japan.,Department of Life Sciences, Graduate School of Arts and Sciences, University of Tokyo, Tokyo, Japan
| | - Anupratap Tomar
- Laboratory for Circuit and Behavioral Physiology, RIKEN Center for Brain Science, 2-1 Hirosawa, Wakoshi, Saitama, Japan
| | - Kazue Niisato
- Laboratory for Circuit and Behavioral Physiology, RIKEN Center for Brain Science, 2-1 Hirosawa, Wakoshi, Saitama, Japan
| | - Arthur J Y Huang
- Laboratory for Circuit and Behavioral Physiology, RIKEN Center for Brain Science, 2-1 Hirosawa, Wakoshi, Saitama, Japan
| | - Thomas J McHugh
- Laboratory for Circuit and Behavioral Physiology, RIKEN Center for Brain Science, 2-1 Hirosawa, Wakoshi, Saitama, Japan. .,Department of Life Sciences, Graduate School of Arts and Sciences, University of Tokyo, Tokyo, Japan
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Bijata M, Labus J, Guseva D, Stawarski M, Butzlaff M, Dzwonek J, Schneeberg J, Böhm K, Michaluk P, Rusakov DA, Dityatev A, Wilczyński G, Wlodarczyk J, Ponimaskin E. Synaptic Remodeling Depends on Signaling between Serotonin Receptors and the Extracellular Matrix. Cell Rep 2018; 19:1767-1782. [PMID: 28564597 DOI: 10.1016/j.celrep.2017.05.023] [Citation(s) in RCA: 85] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2016] [Revised: 04/03/2017] [Accepted: 05/04/2017] [Indexed: 02/04/2023] Open
Abstract
Rewiring of synaptic circuitry pertinent to memory formation has been associated with morphological changes in dendritic spines and with extracellular matrix (ECM) remodeling. Here, we mechanistically link these processes by uncovering a signaling pathway involving the serotonin 5-HT7 receptor (5-HT7R), matrix metalloproteinase 9 (MMP-9), the hyaluronan receptor CD44, and the small GTPase Cdc42. We highlight a physical interaction between 5-HT7R and CD44 (identified as an MMP-9 substrate in neurons) and find that 5-HT7R stimulation increases local MMP-9 activity, triggering dendritic spine remodeling, synaptic pruning, and impairment of long-term potentiation (LTP). The underlying molecular machinery involves 5-HT7R-mediated activation of MMP-9, which leads to CD44 cleavage followed by Cdc42 activation. One important physiological consequence of this interaction includes an increase in neuronal outgrowth and elongation of dendritic spines, which might have a positive effect on complex neuronal processes (e.g., reversal learning and neuronal regeneration).
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Affiliation(s)
- Monika Bijata
- Department of Molecular and Cellular Neurobiology, Nencki Institute of Experimental Biology of the Polish Academy of Science, Pasteura 3, Warsaw 02-093, Poland
| | - Josephine Labus
- Cellular Neurophysiology, Center of Physiology, Hannover Medical School, Carl-Neuberg-Str. 1, 30625 Hannover, Germany
| | - Daria Guseva
- Cellular Neurophysiology, Center of Physiology, Hannover Medical School, Carl-Neuberg-Str. 1, 30625 Hannover, Germany
| | - Michał Stawarski
- Department of Molecular and Cellular Neurobiology, Nencki Institute of Experimental Biology of the Polish Academy of Science, Pasteura 3, Warsaw 02-093, Poland
| | - Malte Butzlaff
- Cellular Neurophysiology, Center of Physiology, Hannover Medical School, Carl-Neuberg-Str. 1, 30625 Hannover, Germany
| | - Joanna Dzwonek
- Department of Neurophysiology, Nencki Institute of Experimental Biology of the Polish Academy of Science, Pasteura 3, Warsaw 02-093, Poland
| | - Jenny Schneeberg
- Molecular Neuroplasticity Group, German Center for Neurodegenerative Diseases (DZNE), Leipziger Str. 44, 39120 Magdeburg, Germany; Medical Faculty, Otto von Guericke University, Leipziger Str. 44, 39120 Magdeburg, Germany
| | - Katrin Böhm
- Molecular Neuroplasticity Group, German Center for Neurodegenerative Diseases (DZNE), Leipziger Str. 44, 39120 Magdeburg, Germany; Medical Faculty, Otto von Guericke University, Leipziger Str. 44, 39120 Magdeburg, Germany
| | - Piotr Michaluk
- Department of Molecular and Cellular Neurobiology, Nencki Institute of Experimental Biology of the Polish Academy of Science, Pasteura 3, Warsaw 02-093, Poland; UCL Institute of Neurology, University College of London, Queen Square, London WC1N 3BG, UK
| | - Dmitri A Rusakov
- UCL Institute of Neurology, University College of London, Queen Square, London WC1N 3BG, UK
| | - Alexander Dityatev
- Molecular Neuroplasticity Group, German Center for Neurodegenerative Diseases (DZNE), Leipziger Str. 44, 39120 Magdeburg, Germany; Medical Faculty, Otto von Guericke University, Leipziger Str. 44, 39120 Magdeburg, Germany
| | - Grzegorz Wilczyński
- Department of Neurophysiology, Nencki Institute of Experimental Biology of the Polish Academy of Science, Pasteura 3, Warsaw 02-093, Poland
| | - Jakub Wlodarczyk
- Department of Molecular and Cellular Neurobiology, Nencki Institute of Experimental Biology of the Polish Academy of Science, Pasteura 3, Warsaw 02-093, Poland.
| | - Evgeni Ponimaskin
- Cellular Neurophysiology, Center of Physiology, Hannover Medical School, Carl-Neuberg-Str. 1, 30625 Hannover, Germany.
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Thériault P, ElAli A, Rivest S. High fat diet exacerbates Alzheimer's disease-related pathology in APPswe/PS1 mice. Oncotarget 2018; 7:67808-67827. [PMID: 27661129 PMCID: PMC5356521 DOI: 10.18632/oncotarget.12179] [Citation(s) in RCA: 82] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2016] [Accepted: 09/16/2016] [Indexed: 12/11/2022] Open
Abstract
Alzheimer's disease (AD) is mainly characterized by the accumulation and aggregation of amyloid-β (Aβ) peptides in brain parenchyma and cerebral microvasculature. Unfortunately, the exact causes of the disease are still unclear. However, blood-brain barrier (BBB) dysfunction and activation of inflammatory pathways are implicated in AD pathogenesis. Importantly, advanced age and high fat diet, two major risk factors associated with AD, were shown to deeply affect BBB function and modulate the immune response. As such, this study evaluated the impact of age and high fat diet on AD progression. For this purpose, 3 (i.e. young) and 12 (i.e. aged) months old APPswe/PS1 mice were fed for 4 months with a high fat diet (i.e. Western diet (WD)) or normal diet. Interestingly, neurobehavioral tests revealed that WD accelerates age-associated cognitive decline without affecting parenchymal Aβ. Nonetheless, WD decreases matrix metalloproteinase-9 enzymatic activity and brain-derived neurotrophic factor mRNA and protein levels in brain, suggesting loss of synaptic plasticity. In the periphery, WD promotes systemic inflammation by increasing the levels of blood-circulating monocytes and monocyte chemotactic protein-1 production, which is accompanied by an augmentation of oxidized-low density lipoprotein levels in blood circulation. At the BBB, WD potentiates the age-induced increase of Aβ 1-40 accumulation and exacerbates the oxidative stress, specifically in cerebral microvasculature. These effects were accompanied by the dysfunction of pericytes, thus altering BBB functionality without compromising its integrity. Our study provides new insights into the implication of high fat diet in accelerating the cognitive decline in AD.
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Affiliation(s)
- Peter Thériault
- Neuroscience Laboratory, CHU de Québec Research Center and Department of Molecular Medicine, Faculty of Medicine, Laval University, Québec City, QC, Canada
| | - Ayman ElAli
- Neuroscience Laboratory, CHU de Québec Research Center and Department of Psychiatry and Neuroscience, Faculty of Medicine, Laval University, Québec City, QC, Canada
| | - Serge Rivest
- Neuroscience Laboratory, CHU de Québec Research Center and Department of Molecular Medicine, Faculty of Medicine, Laval University, Québec City, QC, Canada
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Jaworski J, Kalita K, Knapska E. c-Fos and neuronal plasticity: the aftermath of Kaczmarek’s theory. Acta Neurobiol Exp (Wars) 2018. [DOI: 10.21307/ane-2018-027] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Lim WC, Kim H, Kim YJ, Park SH, Song JH, Lee KH, Lee IH, Lee YK, So KA, Choi KC, Ko H. Delphinidin inhibits BDNF-induced migration and invasion in SKOV3 ovarian cancer cells. Bioorg Med Chem Lett 2017; 27:5337-5343. [PMID: 29122484 DOI: 10.1016/j.bmcl.2017.09.024] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2017] [Revised: 08/28/2017] [Accepted: 09/11/2017] [Indexed: 11/28/2022]
Abstract
Brain-derived neurotrophic factor (BDNF), the TrkB ligand, is associated with aggressive malignant behavior, including migration and invasion, in tumor cells and a poor prognosis in patients with various types of cancer. Delphinidin is a diphenylpropane-based polyphenolic ring structure-harboring compound, which exhibits a wide range of pharmacological activities, anti-tumor, anti-oxidant, anti-inflammatory, anti-angiogenic and anti-mutagenic activity. However, the possible role of delphinidin in the cancer migration and invasion is unclear. We investigated the suppressive effect of delphinidin on the cancer migration and invasion. Thus, we found that BDNF enhanced cancer migration and invasion in SKOV3 ovarian cancer cell. To exam the inhibitory role of delphinidin in SKOV3 ovarian cancer migration and invasion, we investigated the use of delphinidin as inhibitors of BDNF-induced motility and invasiveness in SKOV3 ovarian cancer cells in vitro. Here, we found that delphinidin prominently inhibited the BDNF-induced increase in cell migration and invasion of SKOV3 ovarian cancer cells. Furthermore, delphinidin remarkably inhibited BDNF-stimulated expression of MMP-2 and MMP-9. Also, delphinidin antagonized the phosphorylation of Akt and nuclear translocation of NF-κB permitted by the BDNF in SKOV3 ovarian cancer cells. Taken together, our findings provide new evidence that delphinidin suppressed the BDNF-induced ovarian cancer migration and invasion through decreasing of Akt activation.
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Affiliation(s)
- Won-Chul Lim
- Laboratory of Molecular Oncology, Cheil General Hospital & Women's Healthcare Center, College of Medicine, Dankook University, Seoul, South Korea
| | - Hyunhee Kim
- Laboratory of Molecular Oncology, Cheil General Hospital & Women's Healthcare Center, College of Medicine, Dankook University, Seoul, South Korea
| | - Young-Joo Kim
- Natural Products Research Center, Korea Institute of Science and Technology, Gangneung, Gangwon-do, South Korea
| | - Seung-Ho Park
- Department of Biomedical Sciences, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea; Department of Pharmacology, University of Ulsan College of Medicine, Seoul, South Korea
| | - Ji-Hye Song
- Department of Biomedical Sciences, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea; Department of Pharmacology, University of Ulsan College of Medicine, Seoul, South Korea
| | - Ki Heon Lee
- Department of Obstetrics and Gynecology, Cheil General Hospital & Women's Healthcare Center, College of Medicine, Dankook University, Seoul, South Korea
| | - In Ho Lee
- Department of Obstetrics and Gynecology, Cheil General Hospital & Women's Healthcare Center, College of Medicine, Dankook University, Seoul, South Korea
| | - Yoo-Kyung Lee
- Department of Obstetrics and Gynecology, Cheil General Hospital & Women's Healthcare Center, College of Medicine, Dankook University, Seoul, South Korea
| | - Kyeong A So
- Department of Obstetrics and Gynecology, Cheil General Hospital & Women's Healthcare Center, College of Medicine, Dankook University, Seoul, South Korea
| | - Kyung-Chul Choi
- Department of Biomedical Sciences, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea; Department of Pharmacology, University of Ulsan College of Medicine, Seoul, South Korea.
| | - Hyeonseok Ko
- Laboratory of Molecular Oncology, Cheil General Hospital & Women's Healthcare Center, College of Medicine, Dankook University, Seoul, South Korea.
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40
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Matrix Metalloproteinase 9 in Epilepsy: The Role of Neuroinflammation in Seizure Development. Mediators Inflamm 2016; 2016:7369020. [PMID: 28104930 PMCID: PMC5220508 DOI: 10.1155/2016/7369020] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2016] [Accepted: 11/27/2016] [Indexed: 12/11/2022] Open
Abstract
Matrix metalloproteinase 9 is a proteolytic enzyme which is recently one of the more often studied biomarkers. Its possible use as a biomarker of neuronal damage in stroke, heart diseases, tumors, multiple sclerosis, and epilepsy is being widely indicated. In epilepsy, MMP-9 is suggested to play a role in epileptic focus formation and in the stimulation of seizures. The increase of MMP-9 activity in the epileptic focus was observed both in animal models and in clinical studies. MMP-9 contributes to formation of epileptic focus, for example, by remodeling of synapses. Its proteolytic action on the elements of blood-brain barrier and activation of chemotactic processes facilitates accumulation of inflammatory cells and induces seizures. Also modification of glutamatergic transmission by MMP-9 is associated with seizures. In this review we will try to recapitulate the results of previous studies about MMP-9 in terms of its association with epilepsy. We will discuss the mechanisms of its actions and present the results revealed in animal models and clinical studies. We will also provide a comparison of the results of various studies on MMP-9 levels in the context of its possible use as a biomarker of the activity of epilepsy.
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41
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Wasser CR, Herz J. Reelin: Neurodevelopmental Architect and Homeostatic Regulator of Excitatory Synapses. J Biol Chem 2016; 292:1330-1338. [PMID: 27994051 DOI: 10.1074/jbc.r116.766782] [Citation(s) in RCA: 75] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Over half a century ago, D. S. Falconer first reported a mouse with a reeling gate. Four decades later, the Reln gene was isolated and identified as the cause of the reeler phenotype. Initial studies found that loss of Reelin, a large, secreted glycoprotein encoded by the Reln gene, results in abnormal neuronal layering throughout several regions of the brain. In the years since, the known functions of Reelin signaling in the brain have expanded to include multiple postdevelopmental neuromodulatory roles, revealing an ever increasing body of evidence to suggest that Reelin signaling is a critical player in the modulation of synaptic function. In writing this review, we intend to highlight the most fundamental aspects of Reelin signaling and integrate how these various neuromodulatory effects shape and protect synapses.
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Affiliation(s)
- Catherine R Wasser
- From the Department of Molecular Genetics.,Center for Translational Neurodegeneration Research, and
| | - Joachim Herz
- From the Department of Molecular Genetics, .,Center for Translational Neurodegeneration Research, and.,Department of Neuroscience.,Department of Neurology and Neurotherapeutics, University of Texas Southwestern Medical Center, Dallas, Texas, 75390
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Brzdąk P, Włodarczyk J, Mozrzymas JW, Wójtowicz T. Matrix Metalloprotease 3 Activity Supports Hippocampal EPSP-to-Spike Plasticity Following Patterned Neuronal Activity via the Regulation of NMDAR Function and Calcium Flux. Mol Neurobiol 2016; 54:804-816. [PMID: 27351676 PMCID: PMC5219885 DOI: 10.1007/s12035-016-9970-7] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2016] [Accepted: 06/08/2016] [Indexed: 01/01/2023]
Abstract
Matrix metalloproteases (MMPs) comprise a family of endopeptidases that are involved in remodeling the extracellular matrix and play a critical role in learning and memory. At least 24 different MMP subtypes have been identified in the human brain, but less is known about the subtype-specific actions of MMP on neuronal plasticity. The long-term potentiation (LTP) of excitatory synaptic transmission and scaling of dendritic and somatic neuronal excitability are considered substrates of memory storage. We previously found that MMP-3 and MMP-2/9 may be differentially involved in shaping the induction and expression of excitatory postsynaptic potential (EPSP)-to-spike (E-S) potentiation in hippocampal brain slices. MMP-3 and MMP-2/9 proteolysis was previously shown to affect the integrity or mobility of synaptic N-methyl-d-aspartate receptors (NMDARs) in vitro. However, the functional outcome of such MMP-NMDAR interactions remains largely unknown. The present study investigated the role of these MMP subtypes in E-S plasticity and NMDAR function in mouse hippocampal acute brain slices. The temporal requirement for MMP-3/NMDAR activity in E-S potentiation within the CA1 field largely overlapped, and MMP-3 but not MMP-2/9 activity was crucial for the gain-of-function of NMDARs following LTP induction. Functional changes in E-S plasticity following MMP-3 inhibition largely correlated with the expression of cFos protein, a marker of activity-related gene transcription. Recombinant MMP-3 promoted a gain in NMDAR-mediated field potentials and somatodendritic Ca2+ waves. These results suggest that long-term hippocampal E-S potentiation requires transient MMP-3 activity that promotes NMDAR-mediated postsynaptic Ca2+ entry that is vital for the activation of downstream signaling cascades and gene transcription.
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Affiliation(s)
- Patrycja Brzdąk
- Laboratory of Neuroscience, Department of Biophysics, Wroclaw Medical University, Chalubinskiego 3, Wroclaw, 50-368, Poland.,Department of Animal Molecular Physiology, Institute of Experimental Biology, Wroclaw University, Wroclaw, Poland
| | - Jakub Włodarczyk
- Laboratory of Cell Biophysics, Department of Molecular and Cellular Neurobiology, Nencki Institute of Experimental Biology, Warsaw, Poland
| | - Jerzy W Mozrzymas
- Laboratory of Neuroscience, Department of Biophysics, Wroclaw Medical University, Chalubinskiego 3, Wroclaw, 50-368, Poland.,Department of Animal Molecular Physiology, Institute of Experimental Biology, Wroclaw University, Wroclaw, Poland
| | - Tomasz Wójtowicz
- Laboratory of Neuroscience, Department of Biophysics, Wroclaw Medical University, Chalubinskiego 3, Wroclaw, 50-368, Poland.
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Abstract
UNLABELLED Brain-derived neurotrophic factor (BDNF), a member of the neurotrophin family, regulates both survival and differentiation of several neuronal populations in the nervous system during development, as well as synaptic plasticity in the adult brain. BDNF exerts its biological functions through its receptor TrkB. Although the regulation of BDNF transcription by neuronal activity has been widely studied, little is known about TrkB signaling-dependent expression of BDNF. Using rat primary cortical neuron cultures, we show that the BDNF gene is a subject to an extensive autoregulatory loop, where TrkB signaling upregulates the expression of all major BDNF transcripts, mainly through activating MAPK pathways. Investigating the mechanisms behind this autoregulation, we found that AP-1 transcription factors, comprising Jun and Fos family members, participate in the induction of BDNF exon I, III, and VI transcripts. AP-1 transcription factors directly upregulate the expression of exon I transcripts by binding two novel AP-1 cis-elements in promoter I. Moreover, our results show that the effect of AP-1 proteins on the activity of rat BDNF promoters III and VI is indirect, because AP-1 proteins were not detected to bind the respective promoter regions by chromatin immunoprecipitation (ChIP). Collectively, we describe an extensive positive feedback system in BDNF regulation, adding a new layer to the elaborate control of BDNF gene expression. SIGNIFICANCE STATEMENT Here, we show for the first time that in rat primary cortical neurons the expression of all major BDNF transcripts (exon I, II, III, IV, VI, and IXa transcripts) is upregulated in response to TrkB signaling, and that AP-1 transcription factors participate in the induction of exon I, III, and VI transcripts. Moreover, we have described two novel functional AP-1 cis-elements in BDNF promoter I, responsible for the activation of the promoter in response to TrkB signaling. Our results indicate the existence of a positive feedback loop for obtaining sufficient BDNF levels necessary for various TrkB signaling-dependent physiological outcomes in neurons.
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Kuzniewska B, Nader K, Dabrowski M, Kaczmarek L, Kalita K. Adult Deletion of SRF Increases Epileptogenesis and Decreases Activity-Induced Gene Expression. Mol Neurobiol 2016; 53:1478-1493. [PMID: 25636686 PMCID: PMC4789231 DOI: 10.1007/s12035-014-9089-7] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2014] [Accepted: 12/29/2014] [Indexed: 11/27/2022]
Abstract
Although the transcription factor serum response factor (SRF) has been suggested to play a role in activity-dependent gene expression and mediate plasticity-associated structural changes in the hippocampus, no unequivocal evidence has been provided for its role in brain pathology, such as epilepsy. A genome-wide program of activity-induced genes that are regulated by SRF also remains unknown. In the present study, we show that the inducible and conditional deletion of SRF in the adult mouse hippocampus increases the epileptic phenotype in the kainic acid model of epilepsy, reflected by more severe and frequent seizures. Moreover, we observe a robust decrease in activity-induced gene transcription in SRF knockout mice. We characterize the genetic program controlled by SRF in neurons and using functional annotation, we find that SRF target genes are associated with synaptic plasticity and epilepsy. Several of these SRF targets function as regulators of inhibitory or excitatory balance and the structural plasticity of neurons. Interestingly, mutations in those SRF targets have found to be associated with such human neuropsychiatric disorders, as autism and intellectual disability. We also identify novel direct SRF targets in hippocampus: Npas4, Gadd45g, and Zfp36. Altogether, our data indicate that proteins that are highly upregulated by neuronal stimulation, identified in the present study as SRF targets, may function as endogenous protectors against overactivation. Thus, the lack of these effector proteins in SRF knockout animals may lead to uncontrolled excitation and eventually epilepsy.
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Affiliation(s)
- Bozena Kuzniewska
- Laboratory of Neurobiology, Nencki Institute, 3 Pasteur Street, Warsaw, Poland
| | - Karolina Nader
- Laboratory of Neurobiology, Nencki Institute, 3 Pasteur Street, Warsaw, Poland
| | - Michal Dabrowski
- Laboratory of Bioinformatics, Neurobiology Center, Nencki Institute, 3 Pasteur Street, Warsaw, Poland
| | - Leszek Kaczmarek
- Laboratory of Neurobiology, Nencki Institute, 3 Pasteur Street, Warsaw, Poland
| | - Katarzyna Kalita
- Laboratory of Neurobiology, Nencki Institute, 3 Pasteur Street, Warsaw, Poland.
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Vafadari B, Salamian A, Kaczmarek L. MMP-9 in translation: from molecule to brain physiology, pathology, and therapy. J Neurochem 2016; 139 Suppl 2:91-114. [PMID: 26525923 DOI: 10.1111/jnc.13415] [Citation(s) in RCA: 258] [Impact Index Per Article: 32.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2015] [Revised: 10/13/2015] [Accepted: 10/19/2015] [Indexed: 12/11/2022]
Abstract
Matrix metalloproteinase-9 (MMP-9) is a member of the metzincin family of mostly extracellularly operating proteases. Despite the fact that all of these enzymes might be target promiscuous, with largely overlapping catalogs of potential substrates, MMP-9 has recently emerged as a major and apparently unique player in brain physiology and pathology. The specificity of MMP-9 may arise from its very local and time-restricted actions, even when released in the brain from cells of various types, including neurons, glia, and leukocytes. In fact, the quantity of MMP-9 is very low in the naive brain, but it is markedly activated at the levels of enzymatic activity, protein abundance, and gene expression following various physiological stimuli and pathological insults. Neuronal MMP-9 participates in synaptic plasticity by controlling the shape of dendritic spines and function of excitatory synapses, thus playing a pivotal role in learning, memory, and cortical plasticity. When improperly unleashed, MMP-9 contributes to a large variety of brain disorders, including epilepsy, schizophrenia, autism spectrum disorder, brain injury, stroke, neurodegeneration, pain, brain tumors, etc. The foremost mechanism of action of MMP-9 in brain disorders appears to be its involvement in immune/inflammation responses that are related to the enzyme's ability to process and activate various cytokines and chemokines, as well as its contribution to blood-brain barrier disruption, facilitating the extravasation of leukocytes into brain parenchyma. However, another emerging possibility (i.e., the control of MMP-9 over synaptic plasticity) should not be neglected. The translational potential of MMP-9 has already been recognized in both the diagnosis and treatment domains. The most striking translational aspect may be the discovery of MMP-9 up-regulation in a mouse model of Fragile X syndrome, quickly followed by human studies and promising clinical trials that have sought to inhibit MMP-9. With regard to diagnosis, suggestions have been made to use MMP-9 alone or combined with tissue inhibitor of matrix metalloproteinase-1 or brain-derived neurotrophic factor as disease biomarkers. MMP-9, through cleavage of specific target proteins, plays a major role in synaptic plasticity and neuroinflammation, and by those virtues contributes to brain physiology and a host of neurological and psychiatric disorders. This article is part of the 60th Anniversary special issue.
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46
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Sheng L, Wang L, Su M, Zhao X, Hu R, Yu X, Hong J, Liu D, Xu B, Zhu Y, Wang H, Hong F. Mechanism of TiO2 nanoparticle-induced neurotoxicity in zebrafish (Danio rerio). ENVIRONMENTAL TOXICOLOGY 2016; 31:163-175. [PMID: 25059219 DOI: 10.1002/tox.22031] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2014] [Revised: 07/07/2014] [Accepted: 07/13/2014] [Indexed: 06/03/2023]
Abstract
Zebrafish (Danio rerio) has been used historically for evaluating the toxicity of environmental and aqueous toxicants, and there is an emerging literature reporting toxic effects of manufactured nanoparticles (NPs) in zebrafish embryos. Few researches, however, are focused on the neurotoxicity on adult zebrafish after subchronic exposure to TiO2 NPs. This study was designed to evaluate the morphological changes, alterations of neurochemical contents, and expressions of memory behavior-related genes in zebrafish brains caused by exposures to 5, 10, 20, and 40 μg/L TiO2 NPs for 45 consecutive days. Our data indicated that spatial recognition memory and levels of norepinephrine, dopamine, and 5-hydroxytryptamine were significantly decreased and NO levels were markedly elevated, and over proliferation of glial cells, neuron apoptosis, and TiO2 NP aggregation were observed after low dose exposures of TiO2 NPs. Furthermore, the low dose exposures of TiO2 NPs significantly activated expressions of C-fos, C-jun, and BDNF genes, and suppressed expressions of p38, NGF, CREB, NR1, NR2ab, and GluR2 genes. These findings imply that low dose exposures of TiO2 NPs may result in the brain damages in zebrafish, provide a developmental basis for evaluating the neurotoxicity of subchronic exposure, and raise the caution of aquatic application of TiO2 NPs.
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Affiliation(s)
- Lei Sheng
- Medical College of Soochow University, Suzhou, 215123, China
| | - Ling Wang
- Libary of Soochow University, Suzhou, 215021, China
| | - Mingyu Su
- Medical College of Soochow University, Suzhou, 215123, China
- Suzhou Environmental Monitor Center, Suzhou, 215004, China
| | - Xiaoyang Zhao
- Medical College of Soochow University, Suzhou, 215123, China
| | - Renping Hu
- Medical College of Soochow University, Suzhou, 215123, China
| | - Xiaohong Yu
- Medical College of Soochow University, Suzhou, 215123, China
| | - Jie Hong
- Medical College of Soochow University, Suzhou, 215123, China
| | - Dong Liu
- Medical College of Soochow University, Suzhou, 215123, China
| | - Bingqing Xu
- Medical College of Soochow University, Suzhou, 215123, China
| | - Yunting Zhu
- Medical College of Soochow University, Suzhou, 215123, China
| | - Han Wang
- Medical College of Soochow University, Suzhou, 215123, China
| | - Fashui Hong
- Medical College of Soochow University, Suzhou, 215123, China
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Caught in the Net: Perineuronal Nets and Addiction. Neural Plast 2016; 2016:7538208. [PMID: 26904301 PMCID: PMC4745418 DOI: 10.1155/2016/7538208] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2015] [Accepted: 11/23/2015] [Indexed: 12/14/2022] Open
Abstract
Exposure to drugs of abuse induces plasticity in the brain and creates persistent drug-related memories. These changes in plasticity and persistent drug memories are believed to produce aberrant motivation and reinforcement contributing to addiction. Most studies have explored the effect drugs of abuse have on pre- and postsynaptic cells and astrocytes; however, more recently, attention has shifted to explore the effect these drugs have on the extracellular matrix (ECM). Within the ECM are unique structures arranged in a net-like manner, surrounding a subset of neurons called perineuronal nets (PNNs). This review focuses on drug-induced changes in PNNs, the molecules that regulate PNNs, and the expression of PNNs within brain circuitry mediating motivation, reward, and reinforcement as it pertains to addiction.
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Rauch AK, Rosskothen-Kuhl N, Illing RB. Counter-regulation of the AP-1 monomers pATF2 and Fos: Molecular readjustment of brainstem neurons in hearing and deaf adult rats after electrical intracochlear stimulation. Neuroscience 2016; 313:184-98. [DOI: 10.1016/j.neuroscience.2015.11.025] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2015] [Revised: 10/09/2015] [Accepted: 11/12/2015] [Indexed: 12/24/2022]
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Boulle F, Velthuis H, Koedam K, Steinbusch HW, van den Hove DLA, Kenis G, Gabriel C, Mocaer E, Franc B, Rognan D, Mongeau R, Lanfumey L. Behavioral and neurochemical characterization of TrkB-dependent mechanisms of agomelatine in glucocorticoid receptor-impaired mice. Eur Neuropsychopharmacol 2016; 26:65-77. [PMID: 26653128 DOI: 10.1016/j.euroneuro.2015.11.003] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/28/2015] [Revised: 09/30/2015] [Accepted: 11/08/2015] [Indexed: 12/13/2022]
Abstract
Growing evidence indicates that impairment of the stress response, in particular the negative feedback regulation mechanism exerted by the hypothalamo-pituitary-adrenal (HPA) axis, might be responsible for the hippocampal atrophy observed in depressed patients. Antidepressants, possibly through the activation of BDNF signaling, may enhance neuroplasticity and restore normal hippocampal functions. In this context, glucocorticoid receptor-impaired (GR-i) mice-a transgenic mouse model of reduced GR-induced negative feedback regulation of the HPA axis-were used to investigate the role of BDNF/TrkB signaling in the behavioral and neurochemical effects of the new generation antidepressant drug, agomelatine. GR-i mice exhibited marked alterations in depressive-like and anxiety-like behaviors, together with a decreased cell proliferation and altered levels of neuroplastic and epigenetic markers in the hippocampus. GR-i mice and their wild-type littermates were treated for 21 days with vehicle, agomelatine (50mg/kg/day; i.p) or the TrkB inhibitor Ana-12 (0.5mg/kg/day, i.p) alone, or in combination with agomelatine. Chronic treatment with agomelatine resulted in antidepressant-like effects in GR-i mice and reversed the deficit in hippocampal cell proliferation and some of the alterations of mRNA plasticity markers in GR-i mice. Ana-12 blocked the effect of agomelatine on motor activity as well as its ability to restore a normal hippocampal cell proliferation and expression of neurotrophic factors. Altogether, our findings indicate that agomelatine requires TrkB signaling to reverse some of the molecular and behavioral alterations caused by HPA axis impairment.
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Affiliation(s)
- F Boulle
- Centre de Psychiatrie et Neurosciences, Inserm UMR 894, Paris, France; Université Paris Descartes, UMR S894, Paris, France; Department of Psychiatry and Neuropsychology, European Graduate School for Neuroscience (EURON), Maastricht University, Maastricht, The Netherlands
| | - H Velthuis
- Centre de Psychiatrie et Neurosciences, Inserm UMR 894, Paris, France; Université Paris Descartes, UMR S894, Paris, France
| | - K Koedam
- Department of Psychiatry and Neuropsychology, European Graduate School for Neuroscience (EURON), Maastricht University, Maastricht, The Netherlands
| | - H W Steinbusch
- Department of Psychiatry and Neuropsychology, European Graduate School for Neuroscience (EURON), Maastricht University, Maastricht, The Netherlands
| | - D L A van den Hove
- Department of Psychiatry and Neuropsychology, European Graduate School for Neuroscience (EURON), Maastricht University, Maastricht, The Netherlands; Department of Psychiatry, Psychosomatics and Psychotherapy, University of Wuerzburg, Wuerzburg, Germany
| | - G Kenis
- Department of Psychiatry and Neuropsychology, European Graduate School for Neuroscience (EURON), Maastricht University, Maastricht, The Netherlands
| | - C Gabriel
- Institut de Recherche International Servier, Suresnes, France
| | - E Mocaer
- Institut de Recherche International Servier, Suresnes, France
| | - B Franc
- Centre de Psychiatrie et Neurosciences, Inserm UMR 894, Paris, France; Université Paris Descartes, UMR S894, Paris, France
| | - D Rognan
- Laboratoire d'Innovation Thérepeutique, UMR 7200 CNRS, Université de Strasbourg, Illkirch, France
| | - R Mongeau
- Centre de Psychiatrie et Neurosciences, Inserm UMR 894, Paris, France; Université Paris Descartes, UMR S894, Paris, France; EA4475, Pharmacology department, University Paris Descartes, Paris, France
| | - L Lanfumey
- Centre de Psychiatrie et Neurosciences, Inserm UMR 894, Paris, France; Université Paris Descartes, UMR S894, Paris, France.
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50
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Wiera G, Mozrzymas JW. Extracellular proteolysis in structural and functional plasticity of mossy fiber synapses in hippocampus. Front Cell Neurosci 2015; 9:427. [PMID: 26582976 PMCID: PMC4631828 DOI: 10.3389/fncel.2015.00427] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2015] [Accepted: 10/09/2015] [Indexed: 02/04/2023] Open
Abstract
Brain is continuously altered in response to experience and environmental changes. One of the underlying mechanisms is synaptic plasticity, which is manifested by modification of synapse structure and function. It is becoming clear that regulated extracellular proteolysis plays a pivotal role in the structural and functional remodeling of synapses during brain development, learning and memory formation. Clearly, plasticity mechanisms may substantially differ between projections. Mossy fiber synapses onto CA3 pyramidal cells display several unique functional features, including pronounced short-term facilitation, a presynaptically expressed long-term potentiation (LTP) that is independent of NMDAR activation, and NMDA-dependent metaplasticity. Moreover, structural plasticity at mossy fiber synapses ranges from the reorganization of projection topology after hippocampus-dependent learning, through intrinsically different dynamic properties of synaptic boutons to pre- and postsynaptic structural changes accompanying LTP induction. Although concomitant functional and structural plasticity in this pathway strongly suggests a role of extracellular proteolysis, its impact only starts to be investigated in this projection. In the present report, we review the role of extracellular proteolysis in various aspects of synaptic plasticity in hippocampal mossy fiber synapses. A growing body of evidence demonstrates that among perisynaptic proteases, tissue plasminogen activator (tPA)/plasmin system, β-site amyloid precursor protein-cleaving enzyme 1 (BACE1) and metalloproteinases play a crucial role in shaping plastic changes in this projection. We discuss recent advances and emerging hypotheses on the roles of proteases in mechanisms underlying mossy fiber target specific synaptic plasticity and memory formation.
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Affiliation(s)
- Grzegorz Wiera
- Department of Animal Molecular Physiology, Institute of Experimental Biology, Wroclaw University Wroclaw, Poland ; Laboratory of Neuroscience, Department of Biophysics, Wroclaw Medical University Wroclaw, Poland
| | - Jerzy W Mozrzymas
- Department of Animal Molecular Physiology, Institute of Experimental Biology, Wroclaw University Wroclaw, Poland ; Laboratory of Neuroscience, Department of Biophysics, Wroclaw Medical University Wroclaw, Poland
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