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Gupta T, Kaur M, Gupta M, Singla N, Kharbanda PS, Bansal YS, Radotra BD, Gupta SK. Analysis of distribution and localization of proteins of the reelin signalling pathway in mesial temporal lobe epilepsy. Int J Neurosci 2023:1-15. [PMID: 38060511 DOI: 10.1080/00207454.2023.2292957] [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: 06/07/2022] [Accepted: 12/02/2023] [Indexed: 12/17/2023]
Abstract
INTRODUCTION Granule cell dispersion (GCD) is pathognomonic of hippocampal sclerosis seen in the mesial temporal lobe epilepsy (MTLE). Current animal studies indicate deficiency of Reelin is associated with abnormal granule cell migration leading to GCD. The present study aimed to evaluate complete Reelin signalling pathway to assess whether Reelin deficiency is related to MTLE. MATERIALS AND METHODS Hippocampal sclerosis was confirmed by H and E stain. To explore the amount and cellular location of the Reelin cascade molecules, the hippocampal tissues from MTLE surgery and controls (n = 15 each) were studied using Immuno-histochemistry (IHC). Additionally, confocal imaging was used to validate the IHC findings by co-localization of different proteins. Quantification of IHC images was performed using histo-score and confocal images by Image J software. RESULTS Immune expression of active Reelin was significantly reduced in patients. Reelin receptors were deranged, apolipoprotein E receptor 2 was increased while very low-density lipoprotein receptor was reduced. Disabled-1, a downstream molecule was significantly reduced in MTLE. Its ultimate target, cofilin was thus disinhibited and expressed more in MTLE. Reelin cleaving protease, matrix metalloprotease-9 (MMP-9) and MMP-9 inhibitor, tissue inhibitor of matrix protease-1, showed reduced expression in extracellular matrix. Semi-quantification of immunohistochemistry was done using Histo (H) score. H score of Reelin in diseased patients was 15 against 125 for control patients. These results were validated by confocal fluorescence microscopy. CONCLUSIONS Reelin signalling cascade was deranged in chronic MTLE. Pharmacological manipulation of Reelin cascade can be done at various levels and it may provide novel treatment options for MTLE.
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Affiliation(s)
- Tulika Gupta
- Department of Anatomy, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Mandeep Kaur
- Department of Anatomy, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Mili Gupta
- Department of Biochemistry, Dr. Harvansh Singh Judge Institute of Dental Sciences and Hospital, Panjab University, Chandigarh, India
| | - Navneet Singla
- Department of Neurosurgery, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Parampreet S Kharbanda
- Department of Neurology, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Yogender S Bansal
- Department of Forensic Medicine, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - B D Radotra
- Department of Histopathology Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - S K Gupta
- Department of Neurosurgery, Post Graduate Institute of Medical Education and Research, Chandigarh, India
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Bronisz E, Cudna A, Wierzbicka A, Kurkowska-Jastrzębska I. Blood-Brain Barrier-Associated Proteins Are Elevated in Serum of Epilepsy Patients. Cells 2023; 12:cells12030368. [PMID: 36766708 PMCID: PMC9913812 DOI: 10.3390/cells12030368] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Revised: 01/08/2023] [Accepted: 01/17/2023] [Indexed: 01/21/2023] Open
Abstract
Blood-brain barrier (BBB) dysfunction emerges as one of the mechanisms underlying the induction of seizures and epileptogenesis. There is growing evidence that seizures also affect BBB, yet only scarce data is available regarding serum levels of BBB-associated proteins in chronic epilepsy. In this study, we aimed to assess serum levels of molecules associated with BBB in patients with epilepsy in the interictal period. Serum levels of MMP-9, MMP-2, TIMP-1, TIMP-2, S100B, CCL-2, ICAM-1, P-selectin, and TSP-2 were examined in a group of 100 patients who were seizure-free for a minimum of seven days and analyzed by ELISA. The results were compared with an age- and sex-matched control group. Serum levels of MMP-9, MMP-2, TIMP-1, TIMP-2 and S100B were higher in patients with epilepsy in comparison to control group (p < 0.0001; <0.0001; 0.001; <0.0001; <0.0001, respectively). Levels of CCL-2, ICAM-1, P-selectin and TSP-2 did not differ between the two groups. Serum levels of MMP-9, MMP-2, TIMP-1, TIMP-2 and S100B are elevated in patients with epilepsy in the interictal period, which suggests chronic processes of BBB disruption and restoration. The pathological process initiating epilepsy, in addition to seizures, is probably the factor contributing to the elevation of serum levels of the examined molecules.
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Affiliation(s)
- Elżbieta Bronisz
- Second Department of Neurology, Institute of Psychiatry and Neurology, 02-957 Warsaw, Poland
- Correspondence:
| | - Agnieszka Cudna
- Second Department of Neurology, Institute of Psychiatry and Neurology, 02-957 Warsaw, Poland
| | - Aleksandra Wierzbicka
- Sleep Disorders Center, Department of Clinical Neurophysiology, Institute of Psychiatry and Neurology, 02-957 Warsaw, Poland
| | - Iwona Kurkowska-Jastrzębska
- Sleep Disorders Center, Department of Clinical Neurophysiology, Institute of Psychiatry and Neurology, 02-957 Warsaw, Poland
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3
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Abstract
Perineuronal nets (PNNs) are condensed extracellular matrix (ECM) assemblies of
polyanionic chondroitin sulfate proteoglycans, hyaluronan, and tenascins that
primarily wrap around GABAergic parvalbumin (PV) interneurons. During
development, PNN formation terminates the critical period of neuroplasticity, a
process that can be reversed by experimental disruption of PNNs. Perineuronal
nets also regulate the intrinsic properties of the enclosed PV neurons thereby
maintaining their inhibitory activity. Recent studies have implicated PNNs in
central nervous system diseases as well as PV neuron dysfunction; consequently,
they have further been associated with altered inhibition, particularly in the
genesis of epilepsy. A wide range of seizure presentations in human and rodent
models exhibit ECM remodeling with PNN disruption due to elevated protease
activity. Inhibition of PNN proteolysis reduces seizure activity suggesting that
PNN degrading enzymes may be potential novel therapeutic targets.
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Affiliation(s)
- Lata Chaunsali
- School of Neuroscience Graduate Program, Virginia Tech, Blacksburg, VA, USA.,Glial Biology in Health, Disease, and Cancer Center, Fralin Biomedical Research Institute at Virginia Tech Carilion, Roanoke, VA, USA
| | - Bhanu P Tewari
- Glial Biology in Health, Disease, and Cancer Center, Fralin Biomedical Research Institute at Virginia Tech Carilion, Roanoke, VA, USA
| | - Harald Sontheimer
- Glial Biology in Health, Disease, and Cancer Center, Fralin Biomedical Research Institute at Virginia Tech Carilion, Roanoke, VA, USA
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4
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Kobeissy FH, Shakkour Z, Hayek SE, Mohamed W, Gold MS, Wang KKW. Elevation of Pro-inflammatory and Anti-inflammatory Cytokines in Rat Serum after Acute Methamphetamine Treatment and Traumatic Brain Injury. J Mol Neurosci 2021; 72:158-168. [PMID: 34542809 DOI: 10.1007/s12031-021-01886-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Accepted: 07/05/2021] [Indexed: 11/24/2022]
Abstract
The use of methamphetamine (METH) is a growing worldwide epidemic that bears grave societal implications. METH is known to exert its neurotoxic effects on the dopaminergic and serotonergic systems of the brain. In addition to this classical studied mechanism of damage, findings from our laboratory and others have shown that acute METH treatment and mechanical injury, i.e. traumatic brain injury (TBI), share common cell injury mechanism(s). Since neuro-inflammation is a signature event in TBI, we hypothesize that certain cytokine levels might also be altered in rat brain exposed to an acute METH insult. In this study, using a cytokine antibody array chip, we evaluated the serum levels of 19 cytokines in rats 24 h after exposure to a 40 mg/kg acute regimen of METH. Data were compared to rats subjected to experimental TBI using the controlled cortical impact (CCI) injury model and saline controls. Sandwich ELISA method was used to further validate some of the findings obtained from the antibody cytokine array. We confirmed that three major inflammatory-linked cytokines (IL-1β, IL-6, and IL-10) were elevated in the METH and TBI groups compared to the saline group. Such finding suggests the involvement of an inflammatory process in these brain insults, indicating that METH use is, in fact, a stressor to the immune system where systemic involvement of an altered cytokine profile may play a major role in mediating chemical brain injury after METH use.
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Affiliation(s)
- Firas H Kobeissy
- Department of Biochemistry and Molecular Genetics, Faculty of Medicine, American University of Beirut, Beirut, Lebanon.,Program for Neurotrauma, Neuroproteomics, and Biomarkers Research, Gainesville, FL, USA.,Department of Emergency Medicine, University of Florida, Gainesville, FL, USA
| | - Zaynab Shakkour
- Department of Biochemistry and Molecular Genetics, Faculty of Medicine, American University of Beirut, Beirut, Lebanon
| | - Samer El Hayek
- Department of Psychiatry, American University of Beirut, Beirut, Lebanon
| | - Wael Mohamed
- Clinical Pharmacology Department, Menoufia Medical School, Menoufia University, Al Minufya, Egypt.,Basic medical science department, Kulliyyah of Medicine, International Islamic University Malaysia, Kuantan, Pahang, Malaysia
| | - Mark S Gold
- Washington University School of Medicine, Department of Psychiatry, and National Council, Washington University in St. Louis, Institute for Public Health, St. Louis, MO, USA
| | - Kevin K W Wang
- Program for Neurotrauma, Neuroproteomics, and Biomarkers Research, Gainesville, FL, USA. .,Department of Emergency Medicine, University of Florida, Gainesville, FL, USA.
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5
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Yang R, Wu GWY, Verhoeven JE, Gautam A, Reus VI, Kang JI, Flory JD, Abu-Amara D, Hood L, Doyle FJ, Yehuda R, Marmar CR, Jett M, Hammamieh R, Mellon SH, Wolkowitz OM. A DNA methylation clock associated with age-related illnesses and mortality is accelerated in men with combat PTSD. Mol Psychiatry 2021; 26:4999-5009. [PMID: 32382136 DOI: 10.1038/s41380-020-0755-z] [Citation(s) in RCA: 40] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/29/2020] [Revised: 03/20/2020] [Accepted: 04/23/2020] [Indexed: 02/02/2023]
Abstract
DNA methylation patterns at specific cytosine-phosphate-guanine (CpG) sites predictably change with age and can be used to derive "epigenetic age", an indicator of biological age, as opposed to merely chronological age. A relatively new estimator, called "DNAm GrimAge", is notable for its superior predictive ability in older populations regarding numerous age-related metrics like time-to-death, time-to-coronary heart disease, and time-to-cancer. PTSD is associated with premature mortality and frequently has comorbid physical illnesses suggestive of accelerated biological aging. This is the first study to assess DNAm GrimAge in PTSD patients. We investigated the acceleration of GrimAge relative to chronological age, denoted "AgeAccelGrim" in combat trauma-exposed male veterans with and without PTSD using cross-sectional and longitudinal data from two independent well-characterized veteran cohorts. In both cohorts, AgeAccelGrim was significantly higher in the PTSD group compared to the control group (N = 162, 1.26 vs -0.57, p = 0.001 and N = 53, 0.93 vs -1.60 Years, p = 0.008), suggesting accelerated biological aging in both cohorts with PTSD. In 3-year follow-up study of individuals initially diagnosed with PTSD (N = 26), changes in PTSD symptom severity were correlated with AgeAccelGrim changes (r = 0.39, p = 0.049). In addition, the loss of CD28 cell surface markers on CD8 + T cells, an indicator of T-cell senescence/exhaustion that is associated with biological aging, was positively correlated with AgeAccelGrim, suggesting an immunological contribution to the accelerated biological aging. Overall, our findings delineate cellular correlates of biological aging in combat-related PTSD, which may help explain the increased medical morbidity and mortality seen in this disease.
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Affiliation(s)
- Ruoting Yang
- Medical Readiness Systems Biology, Walter Reed Army Institute of Research, Silver Spring, MD, USA.
| | - Gwyneth W Y Wu
- Weill Institute for Neurosciences and Department of Psychiatry, University of California San Francisco (UCSF) School of Medicine, San Francisco, CA, USA
| | - Josine E Verhoeven
- Amsterdam UMC, Vrije Universiteit Amsterdam, Department of Psychiatry, Amsterdam Public Health Research Institute, Amsterdam, The Netherlands
| | - Aarti Gautam
- Medical Readiness Systems Biology, Walter Reed Army Institute of Research, Silver Spring, MD, USA
| | - Victor I Reus
- Weill Institute for Neurosciences and Department of Psychiatry, University of California San Francisco (UCSF) School of Medicine, San Francisco, CA, USA
| | - Jee In Kang
- Institute of Behavioral Science in Medicine & Department of Psychiatry, Yonsei University College of Medicine, Seoul, South Korea
| | - Janine D Flory
- James J Peters VA Medical Center, Bronx, NY, USA.,Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Duna Abu-Amara
- Department of Psychiatry, New York University School of Medicine, New York, NY, USA
| | | | - Leroy Hood
- Institute for Systems Biology, Seattle, WA, USA
| | - Francis J Doyle
- John A. Paulson School of Engineering & Applied Sciences, Harvard University, Cambridge, MA, USA
| | - Rachel Yehuda
- James J Peters VA Medical Center, Bronx, NY, USA.,Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Charles R Marmar
- Department of Psychiatry, New York University School of Medicine, New York, NY, USA
| | - Marti Jett
- Medical Readiness Systems Biology, Walter Reed Army Institute of Research, Silver Spring, MD, USA
| | - Rasha Hammamieh
- Medical Readiness Systems Biology, Walter Reed Army Institute of Research, Silver Spring, MD, USA
| | - Synthia H Mellon
- Department of OB-GYN and Reproductive Sciences, UCSF School of Medicine, San Francisco, CA, USA
| | - Owen M Wolkowitz
- Weill Institute for Neurosciences and Department of Psychiatry, University of California San Francisco (UCSF) School of Medicine, San Francisco, CA, USA
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6
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Elkjaer ML, Nawrocki A, Kacprowski T, Lassen P, Simonsen AH, Marignier R, Sejbaek T, Nielsen HH, Wermuth L, Rashid AY, Høgh P, Sellebjerg F, Reynolds R, Baumbach J, Larsen MR, Illes Z. CSF proteome in multiple sclerosis subtypes related to brain lesion transcriptomes. Sci Rep 2021; 11:4132. [PMID: 33603109 PMCID: PMC7892884 DOI: 10.1038/s41598-021-83591-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2020] [Accepted: 02/02/2021] [Indexed: 02/08/2023] Open
Abstract
To identify markers in the CSF of multiple sclerosis (MS) subtypes, we used a two-step proteomic approach: (i) Discovery proteomics compared 169 pooled CSF from MS subtypes and inflammatory/degenerative CNS diseases (NMO spectrum and Alzheimer disease) and healthy controls. (ii) Next, 299 proteins selected by comprehensive statistics were quantified in 170 individual CSF samples. (iii) Genes of the identified proteins were also screened among transcripts in 73 MS brain lesions compared to 25 control brains. F-test based feature selection resulted in 8 proteins differentiating the MS subtypes, and secondary progressive (SP)MS was the most different also from controls. Genes of 7 out these 8 proteins were present in MS brain lesions: GOLM was significantly differentially expressed in active, chronic active, inactive and remyelinating lesions, FRZB in active and chronic active lesions, and SELENBP1 in inactive lesions. Volcano maps of normalized proteins in the different disease groups also indicated the highest amount of altered proteins in SPMS. Apolipoprotein C-I, apolipoprotein A-II, augurin, receptor-type tyrosine-protein phosphatase gamma, and trypsin-1 were upregulated in the CSF of MS subtypes compared to controls. This CSF profile and associated brain lesion spectrum highlight non-inflammatory mechanisms in differentiating CNS diseases and MS subtypes and the uniqueness of SPMS.
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Affiliation(s)
- Maria L Elkjaer
- Department of Neurology, Odense University Hospital, J.B. Winslowsvej 4, 5000, Odense C, Denmark.,Institute of Clinical Research, University of Southern Denmark, Odense, Denmark.,Institute of Molecular Medicine, University of Southern Denmark, Odense, Denmark
| | - Arkadiusz Nawrocki
- Department of Biochemistry and Molecular Biology, University of Southern Denmark, Odense, Denmark
| | - Tim Kacprowski
- Research Group Computational Systems Medicine, Chair of Experimental Bioinformatics, TUM School of Life Sciences Weihenstephan, Technical University of Munich, Munich, Germany.,Division Data Science in Biomedicine, Peter L. Reichertz Institute for Medical Informatics of TU Braunschweig and Medical School Hannover, Brunswick, Germany
| | - Pernille Lassen
- Department of Biochemistry and Molecular Biology, University of Southern Denmark, Odense, Denmark
| | - Anja Hviid Simonsen
- Danish Dementia Research Centre, Copenhagen University Hospital Rigshospitalet, Copenhagen, Denmark
| | - Romain Marignier
- Service de Neurologie, Sclérose en Plaques, Lyon Neuroscience Research Center, Lyon, France
| | - Tobias Sejbaek
- Department of Neurology, Odense University Hospital, J.B. Winslowsvej 4, 5000, Odense C, Denmark.,Department of Neurology, Hospital South West Jutland, University Hospital of Southern Denmark, Esbjerg, Denmark
| | - Helle H Nielsen
- Department of Neurology, Odense University Hospital, J.B. Winslowsvej 4, 5000, Odense C, Denmark.,Institute of Clinical Research, University of Southern Denmark, Odense, Denmark.,Institute of Molecular Medicine, University of Southern Denmark, Odense, Denmark
| | - Lene Wermuth
- Department of Neurology, Odense University Hospital, J.B. Winslowsvej 4, 5000, Odense C, Denmark.,Institute of Clinical Research, University of Southern Denmark, Odense, Denmark
| | - Alyaa Yakut Rashid
- Department of Neurology, Hospital South West Jutland, University Hospital of Southern Denmark, Esbjerg, Denmark
| | - Peter Høgh
- Regional Dementia Research Centre, Department of Neurology, Zealand University Hospital, Roskilde, Denmark.,Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Finn Sellebjerg
- Danish Multiple Sclerosis Center, Department of Neurology, Copenhagen University Hospital - Rigshospitalet, Glostrup, Denmark., Copenhagen, Denmark
| | | | - Jan Baumbach
- Department of Mathematics and Computer Science, University of Southern Denmark, Odense, Denmark.,Chair of Experimental Bioinformatics, TUM School of Life Sciences Weihenstephan, Technical University of Munich, Munich, Germany
| | - Martin R Larsen
- Department of Biochemistry and Molecular Biology, University of Southern Denmark, Odense, Denmark
| | - Zsolt Illes
- Department of Neurology, Odense University Hospital, J.B. Winslowsvej 4, 5000, Odense C, Denmark. .,Institute of Clinical Research, University of Southern Denmark, Odense, Denmark. .,Institute of Molecular Medicine, University of Southern Denmark, Odense, Denmark.
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7
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Imbalance of nerve growth factor metabolism in aging women with overactive bladder syndrome. World J Urol 2020; 39:2055-2063. [PMID: 32870355 DOI: 10.1007/s00345-020-03422-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2020] [Accepted: 08/21/2020] [Indexed: 10/23/2022] Open
Abstract
PURPOSE Given the disputable link between nerve growth factor (NGF) and overactive bladder syndrome (OAB) and the lack of studies on its precursor (proNGF) in OAB, the aim of the study was to identify changes in the urinary levels of NGF and its proteolytic enzymes in aging women with OAB. METHODS We examined the urinary proNGF/NGF ratio and its processing enzymes in aging women (50-80 years), comparing 20 controls and 20 subjects with OAB. RESULTS In contrast to previous reports correlating NGF to OAB symptoms, we found that proNGF/NGF ratio in the OAB group was twice as high compared to controls (p = 0.009) with a lower NGF levels in women with OAB without statistical significance [1.36 (Q1, Q3: 0.668, 2.39) vs. 1.7 (Q1, Q3: 1.27, 3.045) pg/mg creatinine in control group, p = 0.05]. Enzymatic activity of MMP-7, the main enzyme for extracellular proNGF maturation, was significantly increased in the OAB group and correlated positively with scores of OAB symptoms questionnaires. However, this was counteracted by several-folds increase in the MMP-9 enzyme responsible for NGF proteolysis. While these findings highlight the importance of changes in the proteolytic enzymes to maintain proNGF/NGF balance in OAB, analysis of covariates showed that these changes were attributed to age, insulin resistance and renal function. CONCLUSION NGF proteolysis imbalance can be clinically meaningful in OAB related to aging, rendering it as a potential therapeutic target. However, other age-related factors such as insulin resistance and renal function may contribute to the relationship between NGF and aging-related OAB phenotype.
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8
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Ulbrich P, Khoshneviszadeh M, Jandke S, Schreiber S, Dityatev A. Interplay between perivascular and perineuronal extracellular matrix remodelling in neurological and psychiatric diseases. Eur J Neurosci 2020; 53:3811-3830. [DOI: 10.1111/ejn.14887] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2020] [Revised: 05/29/2020] [Accepted: 06/18/2020] [Indexed: 12/31/2022]
Affiliation(s)
- Philipp Ulbrich
- German Center for Neurodegenerative Diseases (DZNE) Magdeburg Germany
- Department of Neurology Otto‐von‐Guericke University Magdeburg Germany
| | - Mahsima Khoshneviszadeh
- German Center for Neurodegenerative Diseases (DZNE) Magdeburg Germany
- Department of Neurology Otto‐von‐Guericke University Magdeburg Germany
| | - Solveig Jandke
- German Center for Neurodegenerative Diseases (DZNE) Magdeburg Germany
- Department of Neurology Otto‐von‐Guericke University Magdeburg Germany
| | - Stefanie Schreiber
- German Center for Neurodegenerative Diseases (DZNE) Magdeburg Germany
- Department of Neurology Otto‐von‐Guericke University Magdeburg Germany
- Center for Behavioral Brain Sciences (CBBS) Magdeburg Germany
| | - Alexander Dityatev
- German Center for Neurodegenerative Diseases (DZNE) Magdeburg Germany
- Center for Behavioral Brain Sciences (CBBS) Magdeburg Germany
- Medical Faculty Otto‐von‐Guericke University Magdeburg Germany
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9
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Saha P, Sarkar S, Paidi RK, Biswas SC. TIMP-1: A key cytokine released from activated astrocytes protects neurons and ameliorates cognitive behaviours in a rodent model of Alzheimer's disease. Brain Behav Immun 2020; 87:804-819. [PMID: 32194232 DOI: 10.1016/j.bbi.2020.03.014] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/18/2019] [Revised: 02/29/2020] [Accepted: 03/15/2020] [Indexed: 12/20/2022] Open
Abstract
Alzheimer's disease (AD) is characterized by two pathologic species, extracellular amyloid-β (Aβ) plaques and intracellular neurofibrillary tangles. Astrocytes that maintain normal homeostasis in the brain undergo a set of molecular, cellular and functional changes called reactive astrogliosis in various neurological diseases including AD. It is hypothesized that reactive astrocytes initially tend to protect neurons by reducing Aβ load and by secreting a plethora of cytokines, however, their functions have only been poorly investigated. Our studies on the kinetics of activation of cortical astrocytes following Aβ-exposure revealed significant level of activation as early as in 6 h. The astrocyte conditioned medium (ACM) from 6 h Aβ-treated astrocytes (Aβ-ACM) provided significant neuroprotection of cultured cortical neurons against Aβ insults. Analysis of the secreted proteins in Aβ-ACM revealed a marked increase of Tissue inhibitor of Metalloproteinase-1 (TIMP-1) within 6 h. Interestingly, we found that neutralization of TIMP-1 with antibody or knockdown with siRNA in astrocytes abolished most of the neuroprotective ability of the 6 h Aβ-ACM on Aβ-treated cultured neurons. Furthermore addition of exogenous rat recombinant TIMP-1 protein protects primary neurons from Aβ mediated toxicity. In a well characterized Aβ-infused rodent model of AD, intra-cerebroventricular administration of TIMP-1 revealed a reduction in Aβ load and apoptosis in hippocampal and cortical regions. Finally, we found that TIMP-1 can ameliorate Aβ-induced cognitive dysfunctions through restoration of Akt and its downstream pathway and maintenance of synaptic integrity. Thus, our results not only provide a functional clarity for TIMP-1, secreted by activated astrocytes, but also support it as a major candidate in cytokine-mediated therapy of AD especially at the early phase of disease progression.
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Affiliation(s)
- Pampa Saha
- Cell Biology and Physiology Division, CSIR-Indian Institute of Chemical Biology, 4 Raja S. C. Mullick Road, Kolkata 700 032, India
| | - Sukanya Sarkar
- Cell Biology and Physiology Division, CSIR-Indian Institute of Chemical Biology, 4 Raja S. C. Mullick Road, Kolkata 700 032, India
| | - Ramesh Kumar Paidi
- Cell Biology and Physiology Division, CSIR-Indian Institute of Chemical Biology, 4 Raja S. C. Mullick Road, Kolkata 700 032, India
| | - Subhas C Biswas
- Cell Biology and Physiology Division, CSIR-Indian Institute of Chemical Biology, 4 Raja S. C. Mullick Road, Kolkata 700 032, India.
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10
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Boguszewska-Czubara A, Budzynska B, Skalicka-Wozniak K, Kurzepa J. Perspectives and New Aspects of Metalloproteinases' Inhibitors in the Therapy of CNS Disorders: From Chemistry to Medicine. Curr Med Chem 2019; 26:3208-3224. [PMID: 29756562 DOI: 10.2174/0929867325666180514111500] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2016] [Revised: 03/31/2017] [Accepted: 04/05/2018] [Indexed: 11/22/2022]
Abstract
Matrix metalloproteinases (MMPs) play a key role in remodeling of the extracellular matrix (ECM) and, at the same time, influence cell differentiation, migration, proliferation, and survival. Their importance in a variety of human diseases including cancer, rheumatoid arthritis, pulmonary emphysema and fibrotic disorders has been known for many years but special attention should be paid on the role of MMPs in the central nervous system (CNS) disorders. Till now, there are not many well documented physiological MMP target proteins in the brain but only some pathological ones. Numerous neurodegenerative diseases are a consequence of or result in disturbed remodeling of brain ECM, therefore proper action of MMPs as well as control of their activity may play crucial roles in the development of these diseases. In the present review, we discuss the role of metalloproteinase inhibitors, from the wellknown natural endogenous tissue inhibitors of metalloproteinases (TIMPs) to the exogenous synthetic ones like (4-phenoxyphenylsulfonyl)methylthiirane (SB-3CT), tetracyclines, batimastat (BB-94) and FN-439. As the MMP-TIMP system has been well described in physiological development as well as in pathological conditions mainly in neoplastic diseases, the knowledge about the enzymatic system in mammalian brain tissue still remains poorly understood in this context. Therefore, we focus on MMPs inhibition in the context of the physiological function of the adult brain as well as pathological conditions including neurodegenerative diseases, brain injuries, and others.
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Affiliation(s)
| | - Barbara Budzynska
- Department of Pharmacology and Pharmacodynamics, Medical University of Lublin, Lublin, Poland
| | - Krystyna Skalicka-Wozniak
- Department of Pharmacognosy with Medicinal Plants Unit, Medical University of Lublin, Lublin, Poland
| | - Jacek Kurzepa
- Department of Medical Chemistry, Medical University of Lublin, Lublin, Poland
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11
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Global transcriptome analysis of rat hypothalamic arcuate nucleus demonstrates reversal of hypothalamic gliosis following surgically and diet induced weight loss. Sci Rep 2019; 9:16161. [PMID: 31695063 PMCID: PMC6834618 DOI: 10.1038/s41598-019-52257-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2018] [Accepted: 09/27/2019] [Indexed: 12/31/2022] Open
Abstract
The central mechanisms underlying the marked beneficial metabolic effects of bariatric surgery are unclear. Here, we characterized global gene expression in the hypothalamic arcuate nucleus (Arc) in diet-induced obese (DIO) rats following Roux-en-Y gastric bypass (RYGB). 60 days post-RYGB, the Arc was isolated by laser-capture microdissection and global gene expression was assessed by RNA sequencing. RYGB lowered body weight and adiposity as compared to sham-operated DIO rats. Discrete transcriptome changes were observed in the Arc following RYGB, including differential expression of genes associated with inflammation and neuropeptide signaling. RYGB reduced gene expression of glial cell markers, including Gfap, Aif1 and Timp1, confirmed by a lower number of GFAP immunopositive astrocyte profiles in the Arc. Sham-operated weight-matched rats demonstrated a similar glial gene expression signature, suggesting that RYGB and dietary restriction have common effects on hypothalamic gliosis. Considering that RYGB surgery also led to increased orexigenic and decreased anorexigenic gene expression, this may signify increased hunger-associated signaling at the level of the Arc. Hence, induction of counterregulatory molecular mechanisms downstream from the Arc may play an important role in RYGB-induced weight loss.
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García-González L, Pilat D, Baranger K, Rivera S. Emerging Alternative Proteinases in APP Metabolism and Alzheimer's Disease Pathogenesis: A Focus on MT1-MMP and MT5-MMP. Front Aging Neurosci 2019; 11:244. [PMID: 31607898 PMCID: PMC6769103 DOI: 10.3389/fnagi.2019.00244] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2019] [Accepted: 08/20/2019] [Indexed: 12/12/2022] Open
Abstract
Processing of amyloid beta precursor protein (APP) into amyloid-beta peptide (Aβ) by β-secretase and γ-secretase complex is at the heart of the pathogenesis of Alzheimer’s disease (AD). Targeting this proteolytic pathway effectively reduces/prevents pathology and cognitive decline in preclinical experimental models of the disease, but therapeutic strategies based on secretase activity modifying drugs have so far failed in clinical trials. Although this may raise some doubts on the relevance of β- and γ-secretases as targets, new APP-cleaving enzymes, including meprin-β, legumain (δ-secretase), rhomboid-like protein-4 (RHBDL4), caspases and membrane-type matrix metalloproteinases (MT-MMPs/η-secretases) have confirmed that APP processing remains a solid mechanism in AD pathophysiology. This review will discuss recent findings on the roles of all these proteinases in the nervous system, and in particular on the roles of MT-MMPs, which are at the crossroads of pathological events involving not only amyloidogenesis, but also inflammation and synaptic dysfunctions. Assessing the potential of these emerging proteinases in the Alzheimer’s field opens up new research prospects to improve our knowledge of fundamental mechanisms of the disease and help us establish new therapeutic strategies.
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Affiliation(s)
| | - Dominika Pilat
- Aix-Marseille Univ, CNRS, INP, Inst Neurophysiopathol, Marseille, France
| | - Kévin Baranger
- Aix-Marseille Univ, CNRS, INP, Inst Neurophysiopathol, Marseille, France
| | - Santiago Rivera
- Aix-Marseille Univ, CNRS, INP, Inst Neurophysiopathol, Marseille, France
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Krishnaswamy VR, Benbenishty A, Blinder P, Sagi I. Demystifying the extracellular matrix and its proteolytic remodeling in the brain: structural and functional insights. Cell Mol Life Sci 2019; 76:3229-3248. [PMID: 31197404 PMCID: PMC11105229 DOI: 10.1007/s00018-019-03182-6] [Citation(s) in RCA: 49] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2019] [Revised: 05/29/2019] [Accepted: 05/31/2019] [Indexed: 12/29/2022]
Abstract
The extracellular matrix (ECM) plays diverse roles in several physiological and pathological conditions. In the brain, the ECM is unique both in its composition and in functions. Furthermore, almost all the cells in the central nervous system contribute to different aspects of this intricate structure. Brain ECM, enriched with proteoglycans and other small proteins, aggregate into distinct structures around neurons and oligodendrocytes. These special structures have cardinal functions in the normal functioning of the brain, such as learning, memory, and synapse regulation. In this review, we have compiled the current knowledge about the structure and function of important ECM molecules in the brain and their proteolytic remodeling by matrix metalloproteinases and other enzymes, highlighting the special structures they form. In particular, the proteoglycans in brain ECM, which are essential for several vital functions, are emphasized in detail.
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Affiliation(s)
| | - Amit Benbenishty
- Department of Biological Regulation, Weizmann Institute of Science, Rehovot, Israel
| | - Pablo Blinder
- Neurobiology, Biochemistry and Biophysics School, Tel Aviv University, Tel Aviv, Israel
- Sagol School for Neuroscience, Tel Aviv University, Tel Aviv, Israel
| | - Irit Sagi
- Department of Biological Regulation, Weizmann Institute of Science, Rehovot, Israel.
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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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15
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Chmielewska N, Maciejak P, Turzyńska D, Sobolewska A, Wisłowska-Stanek A, Kołosowska K, Płaźnik A, Szyndler J. The role of UCH-L1, MMP-9, and GFAP as peripheral markers of different susceptibility to seizure development in a preclinical model of epilepsy. J Neuroimmunol 2019; 332:57-63. [PMID: 30952062 DOI: 10.1016/j.jneuroim.2019.03.018] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2019] [Revised: 03/06/2019] [Accepted: 03/28/2019] [Indexed: 01/03/2023]
Abstract
In our study, we assessed the potency of the brain-derived proteins ubiquitin carboxy-terminal hydrolase L1 (UCH-L1), matrix metalloproteinase 9 (MMP-9), glial fibrillary acidic protein (GFAP) and the immune activation indicators interleukin 1β (IL-1β) and interleukin 6 (IL-6) as peripheral biomarkers of different susceptibilities to kindling in a preclinical model. We observed increased plasma UCH-L1 levels in kindled vs. control animals. Furthermore, MMP-9 and IL-1β concentrations were the lowest in rats resistant to kindling. In summary, UCH-L1 is an indicator of neuronal loss and BBB disruption after seizure. MMP-9 and IL-1β may indicate resistance to kindling. UCH-L1, MMP-9 and IL-1β may have utility as peripheral biomarkers with translational potency in the clinic.
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Affiliation(s)
- Natalia Chmielewska
- Department of Neurochemistry, Institute of Psychiatry and Neurology, Sobieskiego Street 9, 02-957 Warsaw, Poland.
| | - Piotr Maciejak
- Department of Neurochemistry, Institute of Psychiatry and Neurology, Sobieskiego Street 9, 02-957 Warsaw, Poland; Department of Experimental and Clinical Pharmacology, Centre for Preclinical Research and Technology CePT, Medical University of Warsaw, Banacha 1B, 02-097 Warsaw, Poland
| | - Danuta Turzyńska
- Department of Neurochemistry, Institute of Psychiatry and Neurology, Sobieskiego Street 9, 02-957 Warsaw, Poland
| | - Alicja Sobolewska
- Department of Neurochemistry, Institute of Psychiatry and Neurology, Sobieskiego Street 9, 02-957 Warsaw, Poland
| | - Aleksandra Wisłowska-Stanek
- Department of Experimental and Clinical Pharmacology, Centre for Preclinical Research and Technology CePT, Medical University of Warsaw, Banacha 1B, 02-097 Warsaw, Poland
| | - Karolina Kołosowska
- Department of Neurochemistry, Institute of Psychiatry and Neurology, Sobieskiego Street 9, 02-957 Warsaw, Poland
| | - Adam Płaźnik
- Department of Neurochemistry, Institute of Psychiatry and Neurology, Sobieskiego Street 9, 02-957 Warsaw, Poland; Department of Experimental and Clinical Pharmacology, Centre for Preclinical Research and Technology CePT, Medical University of Warsaw, Banacha 1B, 02-097 Warsaw, Poland
| | - Janusz Szyndler
- Department of Experimental and Clinical Pharmacology, Centre for Preclinical Research and Technology CePT, Medical University of Warsaw, Banacha 1B, 02-097 Warsaw, Poland
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Baud A, Little D, Wen TQ, Heywood WE, Gissen P, Mills K. An Optimized Method for the Proteomic Analysis of Low Volumes of Cell Culture Media and the Secretome: The Application and the Demonstration of Altered Protein Expression in iPSC-Derived Neuronal Cell Lines from Parkinson's Disease Patients. J Proteome Res 2019; 18:1198-1207. [PMID: 30562036 DOI: 10.1021/acs.jproteome.8b00831] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Traditionally, cell culture medium in iPSC-derived cell work is not the main focus of the research and often is considered as just "food for cells". We demonstrate that by manipulation of the media and optimized methodology, it is possible to use this solution to study the proteins that the cell secretes (the "secretome"). This is particularly useful in the study of iPSC-derived neurons, which require long culture time. We demonstrate that media can be used to model diseases with optimized incubation and sampling times. The ability not to sacrifice cells allows significant cost and research benefits. In this manuscript we describe an optimized method for the analysis of the cell media from iPSC-derived neuronal lines from control and Parkinson's disease patients. We have evaluated the use of standard and supplement B27-free cell media as well as five different sample preparation techniques for proteomic analysis of the cell secretome. Mass spectral analysis of culture media allowed for the identification of >500 proteins, in 500 μL of media, which is less volume than reported previously (20-40 mL). Using shorter incubation times and our optimized methodology, we describe the use of this technique to study and describe potential disease mechanisms in Parkinson's disease.
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Affiliation(s)
- Anna Baud
- Centre for Translational Omics , UCL Great Ormond Street Institute of Child Health , London , WC1N 1EH , U.K
| | - Daniel Little
- MRC Laboratory for Molecular Cell Biology , University College London , London , WC1E 6BT , U.K
| | - Teo Qi Wen
- Centre for Translational Omics , UCL Great Ormond Street Institute of Child Health , London , WC1N 1EH , U.K
| | - Wendy E Heywood
- Centre for Translational Omics , UCL Great Ormond Street Institute of Child Health , London , WC1N 1EH , U.K
| | - Paul Gissen
- MRC Laboratory for Molecular Cell Biology , University College London , London , WC1E 6BT , U.K
| | - Kevin Mills
- Centre for Translational Omics , UCL Great Ormond Street Institute of Child Health , London , WC1N 1EH , U.K
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Aguayo FI, Pacheco AA, García-Rojo GJ, Pizarro-Bauerle JA, Doberti AV, Tejos M, García-Pérez MA, Rojas PS, Fiedler JL. Matrix Metalloproteinase 9 Displays a Particular Time Response to Acute Stress: Variation in Its Levels and Activity Distribution in Rat Hippocampus. ACS Chem Neurosci 2018; 9:945-956. [PMID: 29361213 DOI: 10.1021/acschemneuro.7b00387] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
A single stress exposure facilitates memory formation through neuroplastic processes that reshape excitatory synapses in the hippocampus, probably requiring changes in extracellular matrix components. We tested the hypothesis that matrix metalloproteinase 9 (MMP-9), an enzyme that degrades components of extracellular matrix and synaptic proteins such as β-dystroglycan (β-DG43), changes their activity and distribution in rat hippocampus during the acute stress response. After 2.5 h of restraint stress, we found (i) increased MMP-9 levels and potential activity in whole hippocampal extracts, accompanied by β-DG43 cleavage, and (ii) a significant enhancement of MMP-9 immunoreactivity in dendritic fields such as stratum radiatum and the molecular layer of hippocampus. After 24 h of stress, we found that (i) MMP-9 net activity rises at somatic field, i.e., stratum pyramidale and granule cell layers, and also at synaptic field, mainly stratum radiatum and the molecular layer of hippocampus, and (ii) hippocampal synaptoneurosome fractions are enriched with MMP-9, without variation of its potential enzymatic activity, in accordance with the constant level of cleaved β-DG43. These findings indicate that stress triggers a peculiar timing response in the MMP-9 levels, net activity, and subcellular distribution in the hippocampus, suggesting its involvement in the processing of substrates during the stress response.
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Affiliation(s)
- Felipe I. Aguayo
- Laboratorio de Neuroplasticidad y Neurogenética, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Santiago, Chile
| | - Aníbal A. Pacheco
- Laboratorio de Neuroplasticidad y Neurogenética, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Santiago, Chile
| | - Gonzalo J. García-Rojo
- Laboratorio de Neuroplasticidad y Neurogenética, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Santiago, Chile
| | - Javier A. Pizarro-Bauerle
- Laboratorio de Neuroplasticidad y Neurogenética, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Santiago, Chile
| | - Ana V. Doberti
- Laboratorio de Neuroplasticidad y Neurogenética, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Santiago, Chile
| | - Macarena Tejos
- Laboratorio de Neuroplasticidad y Neurogenética, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Santiago, Chile
| | - María A. García-Pérez
- Laboratorio de Neuroplasticidad y Neurogenética, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Santiago, Chile
| | - Paulina S. Rojas
- Escuela de Quı́mica y Farmacia, Facultad de Medicina, Universidad Andres Bello, Santiago, Chile
| | - Jenny L. Fiedler
- Laboratorio de Neuroplasticidad y Neurogenética, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Santiago, Chile
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Brain Tumor-Related Epilepsy: a Current Review of the Etiologic Basis and Diagnostic and Treatment Approaches. Curr Neurol Neurosci Rep 2017; 17:70. [DOI: 10.1007/s11910-017-0777-3] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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19
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PROneurotrophins and CONSequences. Mol Neurobiol 2017; 55:2934-2951. [DOI: 10.1007/s12035-017-0505-7] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2016] [Accepted: 03/21/2017] [Indexed: 01/12/2023]
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20
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Saravani S, Yari D, Saravani R, Azadi Ahmadabadi C. Association of COL4A3 (rs55703767), MMP-9 (rs17576)and TIMP-1 (rs6609533) gene polymorphisms with susceptibility to type 2 diabetes. Biomed Rep 2017; 6:329-334. [PMID: 28451395 DOI: 10.3892/br.2017.856] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2016] [Accepted: 01/23/2017] [Indexed: 01/17/2023] Open
Abstract
Type 2 diabetes (T2D) is defined by high levels of glucose in the blood. The collagen IV level is associated with conditions of hyperglycemia and insulin resistance. Collagen type IV α3 chain (COL4A3) is a structural protein of the extracellular matrix (ECM). Matrix metallopeptidase 9 (MMP-9) is an enzyme that degrades the extracellular matrix and its activity is moderated by TIMP metallopeptidase inhibitor 1 (TIMP-1). The aim of the current study was to examine the association between genetic polymorphisms of COL4A3 (rs55703767), MMP-9 (rs17576) and TIMP-1 (rs6609533) in patients with T2D. This case-control study was performed on 120 Iranian patients with T2D and 120 healthy individuals. Genotypes were analyzed using the amplification refractory mutation system-polymerase chain reaction technique. The findings demonstrated significant differences between genotypic and allelic distributions of COL4A3 (G/T) and MMP-9 (A/G) polymorphisms as follows: COL4A3 (G/T); TT vs. GG, odds ratio (OR)=0.235, 95% confidence interval (CI)=0.063-0.0802 (P=0.013) and T vs. G, OR=0.592, 95% CI=0.371-0.943 (P=0.026); MMP-9 (A/G); AG vs. GG, OR=2.429, 95% CI=1.232-4.820 (P=0.008) and A vs. G, OR=2.176, 95% CI=1.155-4.130 (P=0.013). No significant association was identified between TIMP-1 (A/G) polymorphism and T2D in females and males. Thus, the genotypic and allelic distributions of COL4A3 (G/T) and MMP-9 (A/G) polymorphisms were associated with T2D. In addition, no significant association was identified in the genotypic distribution of the TIMP-1 (A/G) gene in females and in males. Further studies in other ethnic groups are required to confirm these findings.
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Affiliation(s)
- Samira Saravani
- Department of Biology, Zabol University, Zabol 98615-538, Iran
| | - Davood Yari
- Department of Clinical Biochemistry, School of Medicine, Zahedan University of Medical Sciences, Zahedan 98167-43463, Iran
| | - Ramin Saravani
- Department of Clinical Biochemistry, School of Medicine, Zahedan University of Medical Sciences, Zahedan 98167-43463, Iran.,Cellular and Molecular Research Center, Zahedan University of Medical Sciences, Zahedan 98167-43463, Iran
| | - Changiz Azadi Ahmadabadi
- Department of Cardiovascular Surgery, Zahedan University of Medical Sciences, Zahedan 98167-43463, Iran
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Machado-Pereira M, Santos T, Bernardino L, Ferreira R. Vascular inter-regulation of inflammation: molecular and cellular targets for CNS therapy. J Neurochem 2016; 140:692-702. [PMID: 27925201 DOI: 10.1111/jnc.13914] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2016] [Revised: 11/07/2016] [Accepted: 11/21/2016] [Indexed: 12/17/2022]
Abstract
Angiogenesis and inflammation are clearly interconnected and interdependent processes that are dysregulated in a series of systemic and brain pathologies. Herein, key aspects regarding endothelial cell function and tissue remodelling that are particularly affected or aggravated by inflammation are presented. Most importantly, the cellular and molecular mechanisms involved in the vascular regulation of the inflammatory processes occurring in several brain disorders and how they impact on disease/injury progression are detailed, highlighting potential targets for therapy. Finally, nanomedicine-based approaches designed to overcome limitations pertaining to low systemic bioavailability, light, pH and temperature sensitivity and/or rapid degradation of these targets, and to optimize their mode of action are discussed. Ultimately, we expect this review to provide new insight and to suggest novel approaches for the treatment of blood-brain barrier dysfunction per se or as a means to treat the injured or diseased central nervous system.
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Affiliation(s)
- Marta Machado-Pereira
- Health Sciences Research Centre (CICS-UBI), University of Beira Interior, Rua Marquês d'Ávila e Bolama, Covilhã, Portugal
| | - Tiago Santos
- Health Sciences Research Centre (CICS-UBI), University of Beira Interior, Rua Marquês d'Ávila e Bolama, Covilhã, Portugal
| | - Liliana Bernardino
- Health Sciences Research Centre (CICS-UBI), University of Beira Interior, Rua Marquês d'Ávila e Bolama, Covilhã, Portugal
| | - Raquel Ferreira
- Health Sciences Research Centre (CICS-UBI), University of Beira Interior, Rua Marquês d'Ávila e Bolama, Covilhã, Portugal
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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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Rocha DN, Ferraz-Nogueira JP, Barrias CC, Relvas JB, Pêgo AP. Extracellular environment contribution to astrogliosis-lessons learned from a tissue engineered 3D model of the glial scar. Front Cell Neurosci 2015; 9:377. [PMID: 26483632 PMCID: PMC4586948 DOI: 10.3389/fncel.2015.00377] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2015] [Accepted: 09/09/2015] [Indexed: 12/19/2022] Open
Abstract
Glial scars are widely seen as a (bio)mechanical barrier to central nervous system regeneration. Due to the lack of a screening platform, which could allow in-vitro testing of several variables simultaneously, up to now no comprehensive study has addressed and clarified how different lesion microenvironment properties affect astrogliosis. Using astrocytes cultured in alginate gels and meningeal fibroblast conditioned medium, we have built a simple and reproducible 3D culture system of astrogliosis mimicking many features of the glial scar. Cells in this 3D culture model behave similarly to scar astrocytes, showing changes in gene expression (e.g., GFAP) and increased extra-cellular matrix production (chondroitin 4 sulfate and collagen), inhibiting neuronal outgrowth. This behavior being influenced by the hydrogel network properties. Astrocytic reactivity was found to be dependent on RhoA activity, and targeting RhoA using shRNA-mediated lentivirus reduced astrocytic reactivity. Further, we have shown that chemical inhibition of RhoA with ibuprofen or indirectly targeting RhoA by the induction of extracellular matrix composition modification with chondroitinase ABC, can diminish astrogliosis. Besides presenting the extracellular matrix as a key modulator of astrogliosis, this simple, controlled and reproducible 3D culture system constitutes a good scar-like system and offers great potential in future neurodegenerative mechanism studies, as well as in drug screenings envisaging the development of new therapeutic approaches to minimize the effects of the glial scar in the context of central nervous system disease.
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Affiliation(s)
- Daniela N Rocha
- Instituto de Engenharia Biomédica (INEB), Universidade do Porto Porto, Portugal ; Instituto de Investigação e Inovação em Saúde, Universidade do Porto Porto, Portugal ; Faculdade de Engenharia, Universidade do Porto Porto, Portugal
| | - José P Ferraz-Nogueira
- Instituto de Investigação e Inovação em Saúde, Universidade do Porto Porto, Portugal ; Glia Cell Biology Group, Instituto de Biologia Celular e Molecular, Universidade do Porto Porto, Portugal
| | - Cristina C Barrias
- Instituto de Engenharia Biomédica (INEB), Universidade do Porto Porto, Portugal ; Instituto de Investigação e Inovação em Saúde, Universidade do Porto Porto, Portugal
| | - João B Relvas
- Instituto de Investigação e Inovação em Saúde, Universidade do Porto Porto, Portugal ; Glia Cell Biology Group, Instituto de Biologia Celular e Molecular, Universidade do Porto Porto, Portugal
| | - Ana P Pêgo
- Instituto de Engenharia Biomédica (INEB), Universidade do Porto Porto, Portugal ; Instituto de Investigação e Inovação em Saúde, Universidade do Porto Porto, Portugal ; Faculdade de Engenharia, Universidade do Porto Porto, Portugal ; Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto Porto, Portugal
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The tetrapartite synapse: Extracellular matrix remodeling contributes to corticoaccumbens plasticity underlying drug addiction. Brain Res 2015; 1628:29-39. [PMID: 25838241 DOI: 10.1016/j.brainres.2015.03.027] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2014] [Revised: 02/10/2015] [Accepted: 03/13/2015] [Indexed: 12/29/2022]
Abstract
Synaptic plasticity has long been known to involve three key elements of neuropil, the presynapse, the postsynapse and adjacent glia. Here we review the role of the extracellular matrix in synaptic plasticity as a necessary component forming the tetrapartite synapse. We describe the role of matrix metalloproteinases as enzymes sculpting extracellular proteins and thereby creating an extracellular signaling domain required for synaptic plasticity. Specifically we focus on the role of the tetrapartite synapse in mediating the effects of addictive drugs at cortico-striatal synapses, and conclude that the extracellular signaling domain and its regulation by matrix metalloproteinases is critical for developing and expressing drug seeking behaviors.
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Levy AD, Omar MH, Koleske AJ. Extracellular matrix control of dendritic spine and synapse structure and plasticity in adulthood. Front Neuroanat 2014; 8:116. [PMID: 25368556 PMCID: PMC4202714 DOI: 10.3389/fnana.2014.00116] [Citation(s) in RCA: 71] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2014] [Accepted: 09/29/2014] [Indexed: 12/20/2022] Open
Abstract
Dendritic spines are the receptive contacts at most excitatory synapses in the central nervous system. Spines are dynamic in the developing brain, changing shape as they mature as well as appearing and disappearing as they make and break connections. Spines become much more stable in adulthood, and spine structure must be actively maintained to support established circuit function. At the same time, adult spines must retain some plasticity so their structure can be modified by activity and experience. As such, the regulation of spine stability and remodeling in the adult animal is critical for normal function, and disruption of these processes is associated with a variety of late onset diseases including schizophrenia and Alzheimer's disease. The extracellular matrix (ECM), composed of a meshwork of proteins and proteoglycans, is a critical regulator of spine and synapse stability and plasticity. While the role of ECM receptors in spine regulation has been extensively studied, considerably less research has focused directly on the role of specific ECM ligands. Here, we review the evidence for a role of several brain ECM ligands and remodeling proteases in the regulation of dendritic spine and synapse formation, plasticity, and stability in adults.
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Affiliation(s)
- Aaron D Levy
- Interdepartmental Neuroscience Program, Yale University New Haven, CT, USA ; Department of Molecular Biophysics and Biochemistry, Yale University New Haven, CT, USA
| | - Mitchell H Omar
- Interdepartmental Neuroscience Program, Yale University New Haven, CT, USA ; Department of Molecular Biophysics and Biochemistry, Yale University New Haven, CT, USA
| | - Anthony J Koleske
- Interdepartmental Neuroscience Program, Yale University New Haven, CT, USA ; Department of Molecular Biophysics and Biochemistry, Yale University New Haven, CT, USA ; Department of Neurobiology, Yale University New Haven, CT, USA
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Py NA, Bonnet AE, Bernard A, Marchalant Y, Charrat E, Checler F, Khrestchatisky M, Baranger K, Rivera S. Differential spatio-temporal regulation of MMPs in the 5xFAD mouse model of Alzheimer's disease: evidence for a pro-amyloidogenic role of MT1-MMP. Front Aging Neurosci 2014; 6:247. [PMID: 25278878 PMCID: PMC4166961 DOI: 10.3389/fnagi.2014.00247] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2014] [Accepted: 09/02/2014] [Indexed: 12/03/2022] Open
Abstract
Matrix metalloproteinases (MMPs) are pleiotropic endopeptidases involved in a variety of neurodegenerative/neuroinflammatory processes through their interactions with a large number of substrates. Among those, the amyloid precursor protein (APP) and the beta amyloid peptide (Aβ) are largely associated with the development of Alzheimer’s disease (AD). However, the regulation and potential contribution of MMPs to AD remains unclear. In this study, we investigated the evolution of the expression of MMP-2, MMP-9, and membrane-type 1-MMP (MT1-MMP) in the hippocampus at different stages of the pathology (asymptomatic, prodromal-like and symptomatic) in the 5xFAD transgenic mouse AD model. In parallel we also followed the expression of functionally associated factors. Overall, the expression of MMP-2, MMP-9, and MT1-MMP was upregulated concomitantly with the tissue inhibitor of MMPs-1 (TIMP-1) and several markers of inflammatory/glial response. The three MMPs exhibited age- and cell-dependent upregulation of their expression, with MMP-2 and MMP-9 being primarily located to astrocytes, and MT1-MMP to neurons. MMP-9 and MT1-MMP were also prominently present in amyloid plaques. The levels of active MT1-MMP were highly upregulated in membrane-enriched fractions of hippocampus at 6 months of age (symptomatic phase), when the levels of APP, its metabolites APP C-terminal fragments (CTFs), and Aβ trimers were the highest. Overexpression of MT1-MMP in HEK cells carrying the human APP Swedish mutation (HEKswe) strongly increased β-secretase derived C-terminal APP fragment (C99) and Aβ levels, whereas MMP-2 overexpression nearly abolished Aβ production without affecting C99. Our data consolidate the emerging idea of a regulatory interplay between MMPs and the APP/Aβ system, and demonstrate for the first time the pro-amyloidogenic features of MT1-MMP. Further investigation will be justified to evaluate this MMP as a novel potential therapeutic target in AD.
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Affiliation(s)
- Nathalie A Py
- Faculty of Medicine, Aix-Marseille Université, CNRS, NICN, UMR7259 Marseille, France
| | - Amandine E Bonnet
- Faculty of Medicine, Aix-Marseille Université, CNRS, NICN, UMR7259 Marseille, France
| | - Anne Bernard
- Faculty of Medicine, Aix-Marseille Université, CNRS, NICN, UMR7259 Marseille, France
| | - Yannick Marchalant
- Faculty of Medicine, Aix-Marseille Université, CNRS, NICN, UMR7259 Marseille, France
| | - Eliane Charrat
- Faculty of Medicine, Aix-Marseille Université, CNRS, NICN, UMR7259 Marseille, France
| | | | - Michel Khrestchatisky
- Faculty of Medicine, Aix-Marseille Université, CNRS, NICN, UMR7259 Marseille, France
| | - Kévin Baranger
- Faculty of Medicine, Aix-Marseille Université, CNRS, NICN, UMR7259 Marseille, France ; Department of Neurology and Neuropsychology, APHM, CHU La Timone Marseille, France
| | - Santiago Rivera
- Faculty of Medicine, Aix-Marseille Université, CNRS, NICN, UMR7259 Marseille, France
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Thevenard J, Verzeaux L, Devy J, Etique N, Jeanne A, Schneider C, Hachet C, Ferracci G, David M, Martiny L, Charpentier E, Khrestchatisky M, Rivera S, Dedieu S, Emonard H. Low-density lipoprotein receptor-related protein-1 mediates endocytic clearance of tissue inhibitor of metalloproteinases-1 and promotes its cytokine-like activities. PLoS One 2014; 9:e103839. [PMID: 25075518 PMCID: PMC4116228 DOI: 10.1371/journal.pone.0103839] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2014] [Accepted: 06/11/2014] [Indexed: 11/19/2022] Open
Abstract
Tissue inhibitor of metalloproteinases-1 (TIMP-1) regulates the extracellular matrix turnover by inhibiting the proteolytic activity of matrix metalloproteinases (MMPs). TIMP-1 also displays MMP-independent activities that influence the behavior of various cell types including neuronal plasticity, but the underlying molecular mechanisms remain mostly unknown. The trans-membrane receptor low-density lipoprotein receptor-related protein-1 (LRP-1) consists of a large extracellular chain with distinct ligand-binding domains that interact with numerous ligands including TIMP-2 and TIMP-3 and a short transmembrane chain with intracellular motifs that allow endocytosis and confer signaling properties to LRP-1. We addressed TIMP-1 interaction with recombinant ligand-binding domains of LRP-1 expressed by CHO cells for endocytosis study, or linked onto sensor chips for surface plasmon resonance analysis. Primary cortical neurons bound and internalized endogenous TIMP-1 through a mechanism mediated by LRP-1. This resulted in inhibition of neurite outgrowth and increased growth cone volume. Using a mutated inactive TIMP-1 variant we showed that TIMP-1 effect on neurone morphology was independent of its MMP inhibitory activity. We conclude that TIMP-1 is a new ligand of LRP-1 and we highlight a new example of its MMP-independent, cytokine-like functions.
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Affiliation(s)
- Jessica Thevenard
- Centre National de la Recherche Scientifique (CNRS), Unité Mixte de Recherche (UMR) 7369 Matrice Extracellulaire et Dynamique Cellulaire, Université de Reims-Champagne-Ardenne, Unité de Formation et de Recherche (UFR) Sciences Exactes et Naturelles, Reims, France
| | - Laurie Verzeaux
- Centre National de la Recherche Scientifique (CNRS), Unité Mixte de Recherche (UMR) 7369 Matrice Extracellulaire et Dynamique Cellulaire, Université de Reims-Champagne-Ardenne, Unité de Formation et de Recherche (UFR) Sciences Exactes et Naturelles, Reims, France
| | - Jerôme Devy
- Centre National de la Recherche Scientifique (CNRS), Unité Mixte de Recherche (UMR) 7369 Matrice Extracellulaire et Dynamique Cellulaire, Université de Reims-Champagne-Ardenne, Unité de Formation et de Recherche (UFR) Sciences Exactes et Naturelles, Reims, France
| | - Nicolas Etique
- Centre National de la Recherche Scientifique (CNRS), Unité Mixte de Recherche (UMR) 7369 Matrice Extracellulaire et Dynamique Cellulaire, Université de Reims-Champagne-Ardenne, Unité de Formation et de Recherche (UFR) Sciences Exactes et Naturelles, Reims, France
| | - Albin Jeanne
- Centre National de la Recherche Scientifique (CNRS), Unité Mixte de Recherche (UMR) 7369 Matrice Extracellulaire et Dynamique Cellulaire, Université de Reims-Champagne-Ardenne, Unité de Formation et de Recherche (UFR) Sciences Exactes et Naturelles, Reims, France
| | - Christophe Schneider
- Centre National de la Recherche Scientifique (CNRS), Unité Mixte de Recherche (UMR) 7369 Matrice Extracellulaire et Dynamique Cellulaire, Université de Reims-Champagne-Ardenne, Unité de Formation et de Recherche (UFR) Sciences Exactes et Naturelles, Reims, France
| | - Cathy Hachet
- Centre National de la Recherche Scientifique (CNRS), Unité Mixte de Recherche (UMR) 7369 Matrice Extracellulaire et Dynamique Cellulaire, Université de Reims-Champagne-Ardenne, Unité de Formation et de Recherche (UFR) Sciences Exactes et Naturelles, Reims, France
| | - Géraldine Ferracci
- Aix-Marseille Université, CNRS, Centre de Recherche en Neurobiologie et Neurophysiologie de Marseille (CRN2M), UMR 7286, Plate-Forme de Recherche en Neurosciences (PFRN), Marseille, France
| | - Marion David
- VECT-HORUS SAS, Faculté de Médecine Secteur Nord, Marseille, France
| | - Laurent Martiny
- Centre National de la Recherche Scientifique (CNRS), Unité Mixte de Recherche (UMR) 7369 Matrice Extracellulaire et Dynamique Cellulaire, Université de Reims-Champagne-Ardenne, Unité de Formation et de Recherche (UFR) Sciences Exactes et Naturelles, Reims, France
| | - Emmanuelle Charpentier
- Centre National de la Recherche Scientifique (CNRS), Unité Mixte de Recherche (UMR) 7369 Matrice Extracellulaire et Dynamique Cellulaire, Université de Reims-Champagne-Ardenne, Unité de Formation et de Recherche (UFR) Sciences Exactes et Naturelles, Reims, France
| | - Michel Khrestchatisky
- Neurobiologie des Interactions Cellulaires et Neurophysiopathologie (NICN), UMR 7259, Aix-Marseille Université, Marseille, France
- NICN, CNRS UMR 7259, Marseille, France
| | - Santiago Rivera
- Neurobiologie des Interactions Cellulaires et Neurophysiopathologie (NICN), UMR 7259, Aix-Marseille Université, Marseille, France
- NICN, CNRS UMR 7259, Marseille, France
| | - Stéphane Dedieu
- Centre National de la Recherche Scientifique (CNRS), Unité Mixte de Recherche (UMR) 7369 Matrice Extracellulaire et Dynamique Cellulaire, Université de Reims-Champagne-Ardenne, Unité de Formation et de Recherche (UFR) Sciences Exactes et Naturelles, Reims, France
| | - Hervé Emonard
- Centre National de la Recherche Scientifique (CNRS), Unité Mixte de Recherche (UMR) 7369 Matrice Extracellulaire et Dynamique Cellulaire, Université de Reims-Champagne-Ardenne, Unité de Formation et de Recherche (UFR) Sciences Exactes et Naturelles, Reims, France
- * E-mail:
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Chaturvedi M, Kaczmarek L. Mmp-9 inhibition: a therapeutic strategy in ischemic stroke. Mol Neurobiol 2014; 49:563-73. [PMID: 24026771 PMCID: PMC3918117 DOI: 10.1007/s12035-013-8538-z] [Citation(s) in RCA: 219] [Impact Index Per Article: 21.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2013] [Accepted: 08/15/2013] [Indexed: 12/16/2022]
Abstract
Ischemic stroke is a leading cause of disability worldwide. In cerebral ischemia there is an enhanced expression of matrix metallo-proteinase-9 (MMP-9), which has been associated with various complications including excitotoxicity, neuronal damage, apoptosis, blood-brain barrier (BBB) opening leading to cerebral edema, and hemorrhagic transformation. Moreover, the tissue plasminogen activator (tPA), which is the only US-FDA approved treatment of ischemic stroke, has a brief 3 to 4 h time window and it has been proposed that detrimental effects of tPA beyond the 3 h since the onset of stroke are derived from its ability to activate MMP-9 that in turn contributes to the breakdown of BBB. Therefore, the available literature suggests that MMP-9 inhibition can be of therapeutic importance in ischemic stroke. Hence, combination therapies of MMP-9 inhibitor along with tPA can be beneficial in ischemic stroke. In this review we will discuss the current status of various strategies which have shown neuroprotection and extension of thrombolytic window by directly or indirectly inhibiting MMP-9 activity. In the introductory part of the review, we briefly provide an overview on ischemic stroke, commonly used models of ischemic stroke and a role of MMP-9 in ischemia. In next part, the literature is organized as various approaches which have proven neuroprotective effects through direct or indirect decrease in MMP-9 activity, namely, using biotherapeutics, involving MMP-9 gene inhibition using viral vectors; using endogenous inhibitor of MMP-9, repurposing of old drugs such as minocycline, new chemical entities like DP-b99, and finally other approaches like therapeutic hypothermia.
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Affiliation(s)
- Mayank Chaturvedi
- Laboratory of Neurobiology, Nencki Institute, Pasteura 3, 02-093 Warsaw, Poland
| | - Leszek Kaczmarek
- Laboratory of Neurobiology, Nencki Institute, Pasteura 3, 02-093 Warsaw, Poland
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Baranger K, Rivera S, Liechti FD, Grandgirard D, Bigas J, Seco J, Tarrago T, Leib SL, Khrestchatisky M. Endogenous and synthetic MMP inhibitors in CNS physiopathology. PROGRESS IN BRAIN RESEARCH 2014; 214:313-51. [DOI: 10.1016/b978-0-444-63486-3.00014-1] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Mizoguchi H, Yamada K. Roles of matrix metalloproteinases and their targets in epileptogenesis and seizures. CLINICAL PSYCHOPHARMACOLOGY AND NEUROSCIENCE 2013; 11:45-52. [PMID: 24023547 PMCID: PMC3766754 DOI: 10.9758/cpn.2013.11.2.45] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/28/2012] [Revised: 04/05/2013] [Accepted: 04/19/2013] [Indexed: 01/01/2023]
Abstract
Matrix metalloproteinases (MMPs) and tissue inhibitors of metalloproteinases (TIMPs) remodel the pericellular environment by regulating the cleavage of extracellular matrix proteins, cell surface components, neurotransmitter receptors, and growth factors, which together regulate cell adhesion, synaptogenesis, synaptic plasticity, and long-term potentiation. Increased MMP activity and dysregulation of the balance between MMPs and TIMPs have also been implicated in various pathological conditions. Recent studies have suggested that prolonged seizures are associated with high MMP levels in serum and neural tissues, and certain extracellular macromolecule targets may influence the pathogenesis of epilepsy and seizure. In this review, we discuss the roles of MMP activation in animal models of epilepsy.
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Affiliation(s)
- Hiroyuki Mizoguchi
- Futuristic Environmental Simulation Center, Research Institute of Environmental Medicine, Nagoya University, Nagoya, Japan
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Tinnes S, Ringwald J, Haas CA. TIMP-1 inhibits the proteolytic processing of Reelin in experimental epilepsy. FASEB J 2013; 27:2542-52. [PMID: 23493620 DOI: 10.1096/fj.12-224899] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Temporal lobe epilepsy is frequently associated with granule cell dispersion (GCD), an abnormal widening of the granule cell layer in the dentate gyrus. There is increasing evidence that a loss and the functional inactivation of the positional signal Reelin is involved in GCD formation. Reelin is synthesized and released by Cajal-Retzius cells and interneurons, and its function depends on proteolytic cleavage after secretion. Epileptic conditions impair Reelin processing by inhibition of matrix metalloprotease (MMP) activity and cause the extracellular accumulation of unprocessed Reelin. Here we investigated how epileptic conditions inhibit MMP activity. We used kainate (KA) treatment of organotypic hippocampal slice cultures as an epilepsy model and found a significant increase of tissue inhibitor of metalloproteases 1 (TIMP-1) levels and strongly enhanced TIMP-1 immunolabeling in hippocampal neurons. Functional inhibition of TIMP-1 prevented the KA-induced impairment of Reelin cleavage indicating that TIMP-1 inhibits MMP activity. Moreover, application of recombinant TIMP-1 alone was sufficient to impair Reelin processing and to induce GCD, similar to that observed after KA treatment. In summary, we present evidence that epileptic conditions inhibit MMP activity by up-regulation of endogenous TIMP-1, which in turn leads to extracellular accumulation of uncleaved and inactive Reelin and thereby to GCD.
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Affiliation(s)
- Stefanie Tinnes
- Experimental Epilepsy Research, Department of Neurosurgery, University of Freiburg, Freiburg, Germany
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Fields J, Cisneros IE, Borgmann K, Ghorpade A. Extracellular regulated kinase 1/2 signaling is a critical regulator of interleukin-1β-mediated astrocyte tissue inhibitor of metalloproteinase-1 expression. PLoS One 2013; 8:e56891. [PMID: 23457635 PMCID: PMC3572966 DOI: 10.1371/journal.pone.0056891] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2012] [Accepted: 01/17/2013] [Indexed: 11/21/2022] Open
Abstract
Astrocytes are essential for proper central nervous system (CNS) function and are intricately involved in neuroinflammation. Despite evidence that immune-activated astrocytes contribute to many CNS pathologies, little is known about the inflammatory pathways controlling gene expression. Our laboratory identified altered levels of tissue inhibitor of metalloproteinase (TIMP)-1 in brain lysates from human immunodeficiency virus (HIV)-1 infected patients, compared to age-matched controls, and interleukin (IL)-1β as a key regulator of astrocyte TIMP-1. Additionally, CCAAT enhancer binding protein (C/EBP)β levels are elevated in brain specimens from HIV-1 patients and the transcription factor contributes to astrocyte TIMP-1 expression. In this report we sought to identify key signaling pathways necessary for IL-1β-mediated astrocyte TIMP-1 expression and their interaction with C/EBPβ. Primary human astrocytes were cultured and treated with mitogen activated protein kinase-selective small molecule inhibitors, and IL-1β. TIMP-1 and C/EBPβ mRNA and protein expression were evaluated at 12 and 24 h post-treatment, respectively. TIMP-1 promoter-driven luciferase plasmids were used to evaluate TIMP-1 promoter activity in inhibitor-treated astrocytes. These data show that extracellular regulated kinase (ERK) 1/2-selective inhibitors block IL-1β-induced astrocyte TIMP-1 expression, but did not decrease C/EBPβ expression in parallel. The p38 kinase (p38K) inhibitors partially blocked both IL-1β-induced astrocyte TIMP-1 expression and C/EBPβ expression. The ERK1/2-selective inhibitor abrogated IL-1β-mediated increases in TIMP-1 promoter activity. Our data demonstrate that ERK1/2 activation is critical for IL-1β-mediated astrocyte TIMP-1 expression. ERK1/2-selective inhibition may elicit a compensatory response in the form of enhanced IL-1β-mediated astrocyte C/EBPβ expression, or, alternatively, ERK1/2 signaling may function to moderate IL-1β-mediated astrocyte C/EBPβ expression. Furthermore, p38K activation contributes to IL-1β-induced astrocyte TIMP-1 and C/EBPβ expression. These data suggest that ERK1/2 signals downstream of C/EBPβ to facilitate IL-1β-induced astrocyte TIMP-1 expression. Astrocyte ERK1/2 and p38K signaling may serve as therapeutic targets for manipulating CNS TIMP-1 and C/EBPβ levels, respectively.
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Affiliation(s)
- Jerel Fields
- Department of Cell Biology and Anatomy, University of North Texas Health Science Center, Fort Worth, Texas, United States of America
| | - Irma E. Cisneros
- Department of Cell Biology and Anatomy, University of North Texas Health Science Center, Fort Worth, Texas, United States of America
| | - Kathleen Borgmann
- Department of Cell Biology and Anatomy, University of North Texas Health Science Center, Fort Worth, Texas, United States of America
| | - Anuja Ghorpade
- Department of Cell Biology and Anatomy, University of North Texas Health Science Center, Fort Worth, Texas, United States of America
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Abstract
Focal cortical dysplasia (FCD) is a developmental brain disorder characterized by localized abnormalities of cortical layering and neuronal morphology. It is associated with pharmacologically intractable forms of epilepsy in both children and adults. The mechanisms that underlie FCD-associated seizures and lead to the progression of the disease are unclear. Matrix metalloproteinases (MMPs) are enzymes that are able to influence neuronal function through extracellular proteolysis in various normal and pathological conditions. The results of experiments that have used rodent models showed that extracellular MMP-9 can play an important role in epileptogenesis. However, no studies have shown that MMP-9 is involved in the pathogenesis of human epilepsy. The aim of the present study was to determine whether MMP-9 plays a role in intractable epilepsy. Using an unbiased antibody microarray approach, we found that up regulation of MMP-9 is prominent and consistent in FCD tissue derived from epilepsy surgery, regardless of the patient's age. Additionally, an up regulation of MMP-1, -2, -8, -10, and -13 was found but was either less pronounced or limited only to adult cases. In the dysplastic cortex, immunohistochemistry revealed that the highest MMP-9 immuno reactivity occurred in the cytoplasm of abnormal neurons and balloon cells. The neuronal over expression of MMP-9 also occurred in sclerotic hippocampi that were excised together with the dysplastic cortex, but sclerotic hippocampi were free of dysplastic features. In both locations, MMP-9 was also found in reactive astrocytes, albeit to a lesser extent. At the subcellular level, increased MMP-9 immunoreactivity was prominently upregulated at synapses. Thus, although upregulation of the enzyme in FCD is not causally linked to the developmental malformation, it may be a result of ongoing abnormal synaptic plasticity. The present findings support the hypothesis of the pathogenic role of MMP-9 in human epilepsy and may stimulate discussions about whether MMPs could be novel therapeutic targets for intractable epilepsy.
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Huntley GW. Synaptic circuit remodelling by matrix metalloproteinases in health and disease. Nat Rev Neurosci 2012; 13:743-57. [PMID: 23047773 PMCID: PMC4900464 DOI: 10.1038/nrn3320] [Citation(s) in RCA: 207] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Matrix metalloproteinases (MMPs) are extracellularly acting enzymes that have long been known to have deleterious roles in brain injury and disease. In particular, widespread and protracted MMP activity can contribute to neuronal loss and synaptic dysfunction. However, recent studies show that rapid and focal MMP-mediated proteolysis proactively drives synaptic structural and functional remodelling that is crucial for ongoing cognitive processes. Deficits in synaptic remodelling are associated with psychiatric and neurological disorders, and aberrant MMP expression or function may contribute to the molecular mechanisms underlying these deficits. This Review explores the paradigm shift in our understanding of the contribution of MMPs to normal and abnormal synaptic plasticity and function.
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Affiliation(s)
- George W Huntley
- Fishberg Department of Neuroscience, Friedman Brain Institute and the Graduate School of Biological Sciences, The Mount Sinai School of Medicine, New York, New York 10029, USA.
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Barreto GE, White RE, Xu L, Palm CJ, Giffard RG. Effects of heat shock protein 72 (Hsp72) on evolution of astrocyte activation following stroke in the mouse. Exp Neurol 2012; 238:284-96. [PMID: 22940431 DOI: 10.1016/j.expneurol.2012.08.015] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2012] [Revised: 08/01/2012] [Accepted: 08/11/2012] [Indexed: 01/08/2023]
Abstract
Astrocyte activation is a hallmark of the response to brain ischemia consisting of changes in gene expression and morphology. Heat shock protein 72 (Hsp72) protects from cerebral ischemia, and although several protective mechanisms have been investigated, effects on astrocyte activation have not been studied. To identify potential mechanisms of protection, microarray analysis was used to assess gene expression in the ischemic hemispheres of wild-type (WT) and Hsp72-overexpressing (Hsp72Tg) mice 24 h after middle cerebral artery occlusion or sham surgery. After stroke both genotypes exhibited changes in genes related to apoptosis, inflammation, and stress, with more downregulated genes in Hsp72Tg and more inflammation-related genes increased in WT mice. Genes indicative of astrocyte activation were also upregulated in both genotypes. To measure the extent and time course of astrocyte activation after stroke, detailed histological and morphological analyses were performed in the cortical penumbra. We observed a marked and persistent increase in glial fibrillary acidic protein (GFAP) and a transient increase in vimentin. No change in overall astrocyte number was observed based on glutamine synthetase immunoreactivity. Hsp72Tg and WT mice were compared for density of astrocytes expressing activation markers and astrocytic morphology. In animals with comparable infarct size, overexpression of Hsp72 reduced the density of GFAP- and vimentin-expressing cells, and decreased astrocyte morphological complexity 72 h following stroke. However, by 30 days astrocyte activation was similar between genotypes. These data indicate that early modulation of astrocyte activation provides an additional novel mechanism associated with Hsp72 overexpression in the setting of ischemia.
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Affiliation(s)
- George E Barreto
- Department of Anesthesia, Stanford University School of Medicine, 300 Pasteur Drive, Stanford, CA 94305, USA
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Increased MMP-9 and TIMP-1 in mouse neonatal brain and plasma and in human neonatal plasma after hypoxia-ischemia: a potential marker of neonatal encephalopathy. Pediatr Res 2012; 71:63-70. [PMID: 22289852 DOI: 10.1038/pr.2011.3] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
INTRODUCTION To implement neuroprotective strategies in newborns, sensitive and specific biomarkers are needed for identifying those who are at risk for brain damage. We evaluated the effectiveness of matrix metalloproteinases (MMPs) and their naturally occurring tissue inhibitors of metalloproteinases (TIMPs) in predicting neonatal encephalopathy (NE) damage in newborns. RESULTS Plasma MMP-9 and TIMP-1 levels were upregulated as early as 1 h after the HI insult but not did not show such elevations after other types of injury (ibotenate-induced excitotoxicity, hypoxia, lipopolysaccharide-induced inflammation), and brain levels reflected this increase soon thereafter. We confirmed these results by carrying out plasma MMP-9 and TIMP-1 measurements in human newborns with NE. In these infants, protein levels of MMP-9 and TIMP-1 were found to be elevated during a short window up to 6 h after birth. DISCUSSION This feature is particularly useful in identifying newborns in need of neuroprotection. A second peak observed 72 h after birth is possibly related to the second phase of energy failure after a HI insult. Our data, although preliminary, support the use of MMP-9 and TIMP-1 as early biomarkers for the presence and extent of perinatal brain injury in human term newborns. METHODS We first used a mouse model of neonatal HI injury to explore mechanistic aspects such as the time course of these markers after the hypoxia-ischemia event, and the correlation between the levels of these candidate markers in brain and plasma.
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Matrix metalloproteinases contribute to neuronal dysfunction in animal models of drug dependence, Alzheimer's disease, and epilepsy. Biochem Res Int 2011; 2011:681385. [PMID: 22235372 PMCID: PMC3253438 DOI: 10.1155/2011/681385] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2011] [Accepted: 11/17/2011] [Indexed: 01/07/2023] Open
Abstract
Matrix metalloproteinases (MMPs) and tissue inhibitors of metalloproteinases (TIMPs) remodel the pericellular environment by regulating the cleavage of extracellular matrix proteins, cell surface components, neurotransmitter receptors, and growth factors that mediate cell adhesion, synaptogenesis, synaptic plasticity, and long-term potentiation. Interestingly, increased MMP activity and dysregulation of the balance between MMPs and TIMPs have also been implicated in various pathologic conditions. In this paper, we discuss various animal models that suggest that the activation of the gelatinases MMP-2 and MMP-9 is involved in pathogenesis of drug dependence, Alzheimer's disease, and epilepsy.
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Louboutin JP, Reyes BAS, Agrawal L, Van Bockstaele EJ, Strayer DS. HIV-1 gp120 upregulates matrix metalloproteinases and their inhibitors in a rat model of HIV encephalopathy. Eur J Neurosci 2011; 34:2015-23. [DOI: 10.1111/j.1460-9568.2011.07908.x] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Human matrix metalloproteinases: an ubiquitarian class of enzymes involved in several pathological processes. Mol Aspects Med 2011; 33:119-208. [PMID: 22100792 DOI: 10.1016/j.mam.2011.10.015] [Citation(s) in RCA: 164] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2011] [Accepted: 10/29/2011] [Indexed: 02/07/2023]
Abstract
Human matrix metalloproteinases (MMPs) belong to the M10 family of the MA clan of endopeptidases. They are ubiquitarian enzymes, structurally characterized by an active site where a Zn(2+) atom, coordinated by three histidines, plays the catalytic role, assisted by a glutamic acid as a general base. Various MMPs display different domain composition, which is very important for macromolecular substrates recognition. Substrate specificity is very different among MMPs, being often associated to their cellular compartmentalization and/or cellular type where they are expressed. An extensive review of the different MMPs structural and functional features is integrated with their pathological role in several types of diseases, spanning from cancer to cardiovascular diseases and to neurodegeneration. It emerges a very complex and crucial role played by these enzymes in many physiological and pathological processes.
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Extracellular proteases in epilepsy. Epilepsy Res 2011; 96:191-206. [DOI: 10.1016/j.eplepsyres.2011.08.002] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2011] [Revised: 07/10/2011] [Accepted: 08/03/2011] [Indexed: 11/20/2022]
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Fields J, Gardner-Mercer J, Borgmann K, Clark I, Ghorpade A. CCAAT/enhancer binding protein β expression is increased in the brain during HIV-1-infection and contributes to regulation of astrocyte tissue inhibitor of metalloproteinase-1. J Neurochem 2011; 118:93-104. [PMID: 21281310 PMCID: PMC3112278 DOI: 10.1111/j.1471-4159.2011.07203.x] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Human immunodeficiency virus (HIV)-1-associated neurocognitive disorders (HAND) associated with infection and activation of mononuclear phagocytes (MP) in the brain, occur late in disease. Infected/activated MP initiate neuroinflammation activating glial cells and ultimately disrupting neuronal function. Astrocytes secrete tissue inhibitor of metalloproteinase (TIMP)-1 in response to neural injury. Altered TIMP-1 levels are implicated in several CNS diseases. CCAAT enhancer-binding protein β (C/EBPβ), a transcription factor, is expressed in rodent brains in response to neuroinflammation, implicating it in Alzheimer's, Parkinson's, and HAND. Here, we report that C/EBPβ mRNA levels are elevated and its isoforms differentially expressed in total brain tissue lysates of HIV-1-infected and HIV-1 encephalitis patients. In vitro, HAND-relevant stimuli additively induce C/EBPβ nuclear expression in human astrocytes through 7 days of treatment. Over-expression of C/EBPβ increases TIMP-1 promoter activity, mRNA, and protein levels in human astrocytes activated with interleukin-1β. Knockdown of C/EBPβ with siRNA decreases TIMP-1 mRNA and protein levels. These data suggest that C/EBPβ isoforms are involved in complex regulation of astrocyte TIMP-1 production during HIV-1 infection; however, further studies are required to completely understand their role during disease progression.
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Affiliation(s)
- Jerel Fields
- Department of Cell Biology and Anatomy, University of North Texas Health Science Center, Fort Worth, TX 76107
| | | | - Kathleen Borgmann
- Department of Cell Biology and Anatomy, University of North Texas Health Science Center, Fort Worth, TX 76107
| | - Ian Clark
- School of Biological Sciences, University of East Anglia, Norwich, NR4 7TJ, United Kingdom
| | - Anuja Ghorpade
- Department of Cell Biology and Anatomy, University of North Texas Health Science Center, Fort Worth, TX 76107
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Gueye Y, Ferhat L, Sbai O, Bianco J, Ould-Yahoui A, Bernard A, Charrat E, Chauvin JP, Risso JJ, Féron F, Rivera S, Khrestchatisky M. Trafficking and secretion of matrix metalloproteinase-2 in olfactory ensheathing glial cells: A role in cell migration? Glia 2011; 59:750-70. [DOI: 10.1002/glia.21146] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2010] [Accepted: 12/20/2010] [Indexed: 02/06/2023]
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Tinnes S, Schäfer MKE, Flubacher A, Münzner G, Frotscher M, Haas CA. Epileptiform activity interferes with proteolytic processing of Reelin required for dentate granule cell positioning. FASEB J 2010; 25:1002-13. [PMID: 21148112 DOI: 10.1096/fj.10-168294] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
The extracellular matrix protein Reelin is an essential regulator of neuronal migration and lamination in the developing and mature brain. Lack of Reelin causes severe disturbances in cerebral layering, such as the reeler phenotype and granule cell dispersion in temporal lobe epilepsy. Reelin is synthesized and secreted by Cajal-Retzius cells and GABAergic interneurons, and its function depends on proteolytic cleavage after secretion. The mechanisms regulating these processes are largely unknown. Here, we used rat hippocampal slice cultures to investigate the effect of neuronal activation and hyperexcitation on Reelin synthesis, secretion, and proteolytic processing. We show that enhanced neuronal activity does not modulate Reelin synthesis or secretion. Moreover, we found that intracellular Reelin resides predominantly in the endoplasmic reticulum before it is constitutively secreted via the early secretory pathway. Epileptiform activity, however, impairs the proteolytic processing of Reelin and leads to accumulation of Reelin in the extracellular matrix. We found that both conditions, epileptiform activity and impaired proteolytic cleavage of Reelin, cause granule cell dispersion via inhibition of metalloproteinases. Taken together, our results strongly suggest that secretion of Reelin is activity-independent and that proteolytic processing of Reelin is required for the maintenance of granule cell lamination in the dentate gyrus.
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Affiliation(s)
- Stefanie Tinnes
- Experimental Epilepsy Group, Neurocenter, University Clinic Freiburg, Freiburg, Germany
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Althoff GEM, Wolfer DP, Timmesfeld N, Kanzler B, Schrewe H, Pagenstecher A. Long-term expression of tissue-inhibitor of matrix metalloproteinase-1 in the murine central nervous system does not alter the morphological and behavioral phenotype but alleviates the course of experimental allergic encephalomyelitis. THE AMERICAN JOURNAL OF PATHOLOGY 2010; 177:840-53. [PMID: 20558576 DOI: 10.2353/ajpath.2010.090918] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Tissue inhibitors of metalloproteinases (TIMPs) are a family of closely related proteins that inhibit matrix metalloproteinases (MMPs). In the central nervous system (CNS), TIMPs 2, 3, and 4 are constitutively expressed at high levels, whereas TIMP1 can be induced by various stimuli. Here, we studied the effects of constitutive expression of TIMP1 in the CNS in transgenic mice. Transgene expression started prenatally and persisted throughout lifetime at high levels. Since MMP activity has been implicated in CNS development, in proper function of the adult CNS, and in inflammatory disorders, we investigated Timp1-induced CNS alterations. Despite sufficient MMP inhibition, high expressor transgenic mice had a normal phenotype. The absence of compensatory up-regulation of MMP genes in the CNS of Timp1 transgenic mice indicates that development, learning, and memory functions do not require the entire MMP arsenal. To elucidate the effects of strong Timp1 expression in CNS inflammation, we induced experimental allergic encephalomyelitis. We observed a Timp1 dose-dependent mitigation of both experimental allergic encephalomyelitis symptoms and histological lesions in the CNS of transgenic mice. All in all, our data demonstrate that (1) long-term CNS expression of TIMP1 with complete suppression of gelatinolytic activity does not interfere with physiological brain function and (2) TIMP1 might constitute a promising candidate for long-term therapeutic treatment of inflammatory CNS diseases such as multiple sclerosis.
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Affiliation(s)
- Gioia E M Althoff
- Department of Neuropathology, University of Marburg, Marburg, Germany
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Abstract
Neurons respond to numerous factors in their environment that influence their survival and function during development and in the mature brain. Among these factors, the neurotrophins have been shown to support neuronal survival and function, acting primarily through the Trk family of receptor tyrosine kinases. However, recent studies have established that the uncleaved neurotrophin precursors, the proneurotrophins, can be secreted and induce apoptosis via the p75 neurotrophin receptor, suggesting that the balance of secreted mature and proneurotrophins has a critical impact on neuronal survival or death. Epileptic seizures elicit increases in both proneurotrophin secretion and p75(NTR) expression, shifting the balance of these factors toward signaling cell death. This review will discuss the evidence that this ligand-receptor system plays an important role in neuronal loss following seizures.
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Affiliation(s)
- Wilma J Friedman
- Department of Biological Sciences, Rutgers University, Newark, NJ 07102, USA.
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Takács E, Nyilas R, Szepesi Z, Baracskay P, Karlsen B, Røsvold T, Bjørkum AA, Czurkó A, Kovács Z, Kékesi AK, Juhász G. Matrix metalloproteinase-9 activity increased by two different types of epileptic seizures that do not induce neuronal death: a possible role in homeostatic synaptic plasticity. Neurochem Int 2010; 56:799-809. [PMID: 20303372 DOI: 10.1016/j.neuint.2010.03.003] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2009] [Revised: 03/08/2010] [Accepted: 03/10/2010] [Indexed: 01/26/2023]
Abstract
Matrix metalloproteases (MMPs) degrade or modify extracellular matrix or membrane-bound proteins in the brain. MMP-2 and MMP-9 are activated by treatments that result in a sustained neuronal depolarization and are thought to contribute to neuronal death and structural remodeling. At the synapse, MMP actions on extracellular proteins contribute to changes in synaptic efficacy during learning paradigms. They are also activated during epileptic seizures, and MMP-9 has been associated with the establishment of aberrant synaptic connections after neuronal death induced by kainate treatment. It remains unclear whether MMPs are activated by epileptic activities that do not induce cell death. Here we examine this point in two animal models of epilepsy that do not involve extensive cell damage. We detected an elevation of MMP-9 enzymatic activity in cortical regions of secondary generalization after focal seizures induced by 4-aminopyridine (4-AP) application in rats. Pro-MMP-9 levels were also higher in Wistar Glaxo Rijswijk (WAG/Rij) rats, a genetic model of generalized absence epilepsy, than they were in Sprague-Dawley rats, and this elevation was correlated with diurnally occurring spike-wave-discharges in WAG/Rij rats. The increased enzymatic activity of MMP-9 in these two different epilepsy models is associated with synchronized neuronal activity that does not induce widespread cell death. In these epilepsy models MMP-9 induction may therefore be associated with functions such as homeostatic synaptic plasticity rather than neuronal death.
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Affiliation(s)
- Eszter Takács
- Laboratory of Proteomics, Institute of Biology, Eötvös Loránd University, Budapest, Hungary.
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Sbai O, Ould-Yahoui A, Ferhat L, Gueye Y, Bernard A, Charrat E, Mehanna A, Risso JJ, Chauvin JP, Fenouillet E, Rivera S, Khrestchatisky M. Differential vesicular distribution and trafficking of MMP-2, MMP-9, and their inhibitors in astrocytes. Glia 2010; 58:344-66. [PMID: 19780201 DOI: 10.1002/glia.20927] [Citation(s) in RCA: 65] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Astrocytes play an active role in the central nervous system and are critically involved in astrogliosis, a homotypic response of these cells to disease, injury, and associated neuroinflammation. Among the numerous molecules involved in these processes are the matrix metalloproteinases (MMPs), a family of zinc-dependent endopeptidases, secreted or membrane-bound, that regulate by proteolytic cleavage the extracellular matrix, cytokines, chemokines, cell adhesion molecules, and plasma membrane receptors. MMP activity is tightly regulated by the tissue inhibitors of MMPs (TIMPs), a family of secreted multifunctional proteins. Astrogliosis in vivo and astrocyte reactivity induced in vitro by proinflammatory cues are associated with modulation of expression and/or activity of members of the MMP/TIMP system. However, nothing is known concerning the intracellular distribution and secretory pathways of MMPs and TIMPs in astrocytes. Using a combination of cell biology, biochemistry, fluorescence and electron microscopy approaches, we investigated in cultured reactive astrocytes the intracellular distribution, transport, and secretion of MMP-2, MMP-9, TIMP-1, and TIMP-2. MMP-2 and MMP-9 demonstrate nuclear localization, differential intracellular vesicular distribution relative to the myosin V and kinesin molecular motors, and LAMP-2-labeled lysosomal compartment, and we show vesicular secretion for MMP-2, MMP-9, and their inhibitors. Our results suggest that these proteinases and their inhibitors use different pathways for trafficking and secretion for distinct astrocytic functions.
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Affiliation(s)
- Oualid Sbai
- Neurobiologie des Interactions Cellulaires et Neurophysiopathologie, UMR 6184 CNRS--Université de la Méditerranée, Faculté de Médecine, 51 Boulevard Pierre Dramard, Marseille Cedex 15, France
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Wright JW, Harding JW. Contributions of matrix metalloproteinases to neural plasticity, habituation, associative learning and drug addiction. Neural Plast 2010; 2009:579382. [PMID: 20169175 PMCID: PMC2821634 DOI: 10.1155/2009/579382] [Citation(s) in RCA: 63] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2009] [Revised: 11/22/2009] [Accepted: 12/15/2009] [Indexed: 12/13/2022] Open
Abstract
The premise of this paper is that increased expression of matrix metalloproteinases (MMPs) permits the reconfiguration of synaptic connections (i.e., neural plasticity) by degrading cell adhesion molecules (CAMs) designed to provide stability to those extracellular matrix (ECM) proteins that form scaffolding supporting neurons and glia. It is presumed that while these ECM proteins are weakened, and/or detached, synaptic connections can form resulting in new neural pathways. Tissue inhibitors of metalloproteinases (TIMPs) are designed to deactivate MMPs permitting the reestablishment of CAMs, thus returning the system to a reasonably fixed state. This review considers available findings concerning the roles of MMPs and TIMPs in reorganizing ECM proteins thus facilitating the neural plasticity underlying long-term potentiation (LTP), habituation, and associative learning. We conclude with a consideration of the influence of these phenomena on drug addiction, given that these same processes may be instrumental in the formation of addiction and subsequent relapse. However, our knowledge concerning the precise spatial and temporal relationships among the mechanisms of neural plasticity, habituation, associative learning, and memory consolidation is far from complete and the possibility that these phenomena mediate drug addiction is a new direction of research.
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Affiliation(s)
- John W Wright
- Department of Psychology, Washington State University, Pullman, WA 99164-4820, USA.
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Hernández-Guillamon M, Delgado P, Ortega L, Pares M, Rosell A, García-Bonilla L, Fernández-Cadenas I, Borrell-Pagès M, Boada M, Montaner J. Neuronal TIMP-1 release accompanies astrocytic MMP-9 secretion and enhances astrocyte proliferation induced by beta-amyloid 25-35 fragment. J Neurosci Res 2009; 87:2115-25. [PMID: 19235898 DOI: 10.1002/jnr.22034] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
The neuropathology of Alzheimer's disease (AD) is accompanied by an inflammatory response that includes neurodegeneration and glial reactivity. Tissue remodeling proteins, such as matrix metalloproteinases (MMPs) and their endogenous tissue inhibitors (TIMPs), are inflammatory mediators that might play a dual role in the AD brain. We aimed to investigate the effects of beta-amyloid (Abeta) on the MMP-9/TIMP-1 balance and its involvement in Abeta toxicity in neurons and glial cells. Our results demonstrate that the neurotoxic 25-35 Abeta fragment induces the activation of MMP-9 and the increase of proMMP-2/9 secretion and promotes the release of TIMP-1 in a mixed cortical neuroglial culture. The same treatments performed in pure neuronal or astrocytic cultures confirm that astroglial cells are the major source of MMP-9, whereas increased TIMP-1 levels have a neuronal origin. Moreover, 25-35 Abeta fragment not only induced a release of these molecules but also caused expressional changes in MMP-9 and TIMP-1, correlated with the neurotoxicity process. We also show that TIMP-1 promoted cell proliferation in a mixed neuroglial culture, and we confirm this effect in primary cultured astrocytes induced by rTIMP-1 and 25-35 Abeta. Because the proliferative effect caused by Abeta 25-35 was enhanced by the presence of TIMP-1, we suggest that the astroglial reactivity induced by chronic exposure of the peptide might be mediated in part by TIMP-1, which is secreted mainly by injured neurons. In conclusion, our data suggest that the Abeta 25-35 fragment stimulates the MMP-9-TIMP-1 pathway, promoting gliosis, in a self-defensive attempt to eliminate amyloid deposition from AD brains.
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Affiliation(s)
- Mar Hernández-Guillamon
- Neurovascular Research Laboratory, Institut de Recerca, Hospital Universitari Vall d'Hebron, Barcelona, Spain
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