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Wehn AC, Khalin I, Hu S, Harapan BN, Mao X, Cheng S, Plesnila N, Terpolilli NA. Bradykinin 2 Receptors Mediate Long-Term Neurocognitive Deficits After Experimental Traumatic Brain Injury. J Neurotrauma 2024. [PMID: 38818807 DOI: 10.1089/neu.2024.0042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/01/2024] Open
Abstract
The kallikrein-kinin system is one of the first inflammatory pathways to be activated following traumatic brain injury (TBI) and has been shown to exacerbate brain edema formation in the acute phase through activation of bradykinin 2 receptors (B2R). However, the influence of B2R on chronic post-traumatic damage and outcome is unclear. In the current study, we assessed long-term effects of B2R-knockout (KO) after experimental TBI. B2R KO mice (heterozygous, homozygous) and wild-type (WT) littermates (n = 10/group) were subjected to controlled cortical impact (CCI) TBI. Lesion size was evaluated by magnetic resonance imaging up to 90 days after CCI. Motor and memory function were regularly assessed by Neurological Severity Score, Beam Walk, and Barnes maze test. Ninety days after TBI, brains were harvested for immunohistochemical analysis. There was no difference in cortical lesion size between B2R-deficient and WT animals 3 months after injury; however, hippocampal damage was reduced in B2R KO mice (p = 0.03). Protection of hippocampal tissue was accompanied by a significant improvement of learning and memory function 3 months after TBI (p = 0.02 WT vs. KO), whereas motor function was not influenced. Scar formation and astrogliosis were unaffected, but B2R deficiency led to a gene-dose-dependent attenuation of microglial activation and a reduction of CD45+ cells 3 months after TBI in cortex (p = 0.0003) and hippocampus (p < 0.0001). These results suggest that chronic hippocampal neurodegeneration and subsequent cognitive impairment are mediated by prolonged neuroinflammation and B2R. Inhibition of B2R may therefore represent a novel strategy to reduce long-term neurocognitive deficits after TBI.
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Affiliation(s)
- Antonia Clarissa Wehn
- Institute for Stroke and Dementia Research, LMU University Hospital, LMU Munich, Munich, Germany
- Munich Cluster for Systems Neurology (SyNergy), Munich, Germany
- Department of Neurosurgery, LMU University Hospital, LMU Munich, Munich, Germany
| | - Igor Khalin
- Institute for Stroke and Dementia Research, LMU University Hospital, LMU Munich, Munich, Germany
- Munich Cluster for Systems Neurology (SyNergy), Munich, Germany
- Institute Blood and Brain @ Caen-Normandie (BB@C), Normandie University, Rouen, France
| | - Senbin Hu
- Institute for Stroke and Dementia Research, LMU University Hospital, LMU Munich, Munich, Germany
- Munich Cluster for Systems Neurology (SyNergy), Munich, Germany
| | - Biyan Nathanael Harapan
- Institute for Stroke and Dementia Research, LMU University Hospital, LMU Munich, Munich, Germany
- Department of Neurosurgery, LMU University Hospital, LMU Munich, Munich, Germany
| | - Xiang Mao
- Institute for Stroke and Dementia Research, LMU University Hospital, LMU Munich, Munich, Germany
- Munich Cluster for Systems Neurology (SyNergy), Munich, Germany
- Department of Neurosurgery, The First Affiliated Hospital of Anhui Medical University, Hefei, China
- Neurotrauma Laboratory, Beijing Neurosurgical Institute, Capital Medical University, Beijing, China
| | - Shiqi Cheng
- Institute for Stroke and Dementia Research, LMU University Hospital, LMU Munich, Munich, Germany
- Munich Cluster for Systems Neurology (SyNergy), Munich, Germany
- Department of Neurosurgery, The Second affiliated Hospital of Nanchang University, Nanchang, China
| | - Nikolaus Plesnila
- Institute for Stroke and Dementia Research, LMU University Hospital, LMU Munich, Munich, Germany
- Munich Cluster for Systems Neurology (SyNergy), Munich, Germany
| | - Nicole A Terpolilli
- Institute for Stroke and Dementia Research, LMU University Hospital, LMU Munich, Munich, Germany
- Munich Cluster for Systems Neurology (SyNergy), Munich, Germany
- Department of Neurosurgery, LMU University Hospital, LMU Munich, Munich, Germany
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Mayer AB, Amaral HDO, de Oliveira DGR, Campos GAA, Ribeiro PG, Fernandes SCR, de Souza ACB, de Castro RJA, Bocca AL, Mortari MR. New fraternine analogues: Evaluation of the antiparkinsonian effect in the model of Parkinson's disease. Neuropeptides 2024; 103:102390. [PMID: 37984248 DOI: 10.1016/j.npep.2023.102390] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Revised: 11/08/2023] [Accepted: 11/09/2023] [Indexed: 11/22/2023]
Abstract
Venom-derived peptides are important sources for the development of new therapeutic molecules, especially due to their broad pharmacological activity. Previously, our research group identified a novel natural peptide, named fraternine, with promising effects for the treatment of Parkinson's disease. In the present paper, we synthesized three peptides bioinspired in fraternine: fra-10, fra-14, and fra-24. They were tested in the 6-OHDA-induced model of parkinsonism, quantifying motor coordination, levels of TH+ neurons in the substantia nigra pars compacta (SN), and inflammation mediators TNF-α, IL-6, and IL-1ß in the cortex. Peptides fra-14 and fra-10 improved the motor coordination in relation to 6-OHDA lesioned animals. However, most of the peptides were toxic in the doses applied. All three peptides reduced the intensity of the lesion induced rotations in the apomorphine test. Fra-24 higher dose increased the number of TH+ neurons in SN and reduced the concentration of TNF-α in the cortex of 6-OHDA lesioned mice. Overall, only the peptide fra-24 presented a neuroprotection effect on dopaminergic neurons of SN and a reduction of cytokine TNF-α levels, making it worthy of consideration for the treatment of PD.
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Affiliation(s)
- Andréia Biolchi Mayer
- Laboratory of Neuropharmacology, Department of Physiological Sciences, Institute of Biological Sciences, University of Brasília, Brasília, DF, 70910-900, Brazil
| | - Henrique de Oliveira Amaral
- Laboratory of Neuropharmacology, Department of Physiological Sciences, Institute of Biological Sciences, University of Brasília, Brasília, DF, 70910-900, Brazil
| | - Danilo Gustavo R de Oliveira
- Laboratory of Neuropharmacology, Department of Physiological Sciences, Institute of Biological Sciences, University of Brasília, Brasília, DF, 70910-900, Brazil
| | - Gabriel Avohay Alves Campos
- Laboratory of Neuropharmacology, Department of Physiological Sciences, Institute of Biological Sciences, University of Brasília, Brasília, DF, 70910-900, Brazil
| | - Priscilla Galante Ribeiro
- Laboratory of Neuropharmacology, Department of Physiological Sciences, Institute of Biological Sciences, University of Brasília, Brasília, DF, 70910-900, Brazil
| | - Solange Cristina Rego Fernandes
- Laboratory of Neuropharmacology, Department of Physiological Sciences, Institute of Biological Sciences, University of Brasília, Brasília, DF, 70910-900, Brazil
| | - Adolfo Carlos Barros de Souza
- Laboratory of Neuropharmacology, Department of Physiological Sciences, Institute of Biological Sciences, University of Brasília, Brasília, DF, 70910-900, Brazil
| | - Raffael Júnio Araújo de Castro
- Laboratory of Applied Immunology, Department of Cellular Biology, Institute of Biological Sciences, University of Brasília, Brasília, DF, 70910-900, Brazil
| | - Anamélia Lorenzetti Bocca
- Laboratory of Applied Immunology, Department of Cellular Biology, Institute of Biological Sciences, University of Brasília, Brasília, DF, 70910-900, Brazil
| | - Márcia Renata Mortari
- Laboratory of Neuropharmacology, Department of Physiological Sciences, Institute of Biological Sciences, University of Brasília, Brasília, DF, 70910-900, Brazil.
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Safwat A, Helmy A, Gupta A. The Role of Substance P Within Traumatic Brain Injury and Implications for Therapy. J Neurotrauma 2023; 40:1567-1583. [PMID: 37132595 DOI: 10.1089/neu.2022.0510] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/04/2023] Open
Abstract
This review examines the role of the neuropeptide substance P within the neuroinflammation that follows traumatic brain injury. It examines it in reference to its preferential receptor, the neurokinin-1 receptor, and explores the evidence for antagonism of this receptor in traumatic brain injury with therapeutic intent. Expression of substance P increases following traumatic brain injury. Subsequent binding to the neurokinin-1 receptor results in neurogenic inflammation, a cause of deleterious secondary effects that include an increased intracranial pressure and poor clinical outcome. In several animal models of TBI, neurokinin-1 receptor antagonism has been shown to reduce brain edema and the resultant rise in intracranial pressure. A brief overview of the history of substance P is presented, alongside an exploration into the chemistry of the neuropeptide with a relevance to its functions within the central nervous system. This review summarizes the scientific and clinical rationale for substance P antagonism as a promising therapy for human TBI.
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Affiliation(s)
- Adam Safwat
- Division of Anaesthesia, Department of Medicine, University of Cambridge, Cambridge, United Kingdom
- Department of Clinical Neurosciences, University of Cambridge, Cambridge, United Kingdom
| | - Adel Helmy
- Department of Clinical Neurosciences, University of Cambridge, Cambridge, United Kingdom
| | - Arun Gupta
- Neurosciences Critical Care Unit, Addenbrooke's Hospital, Cambridge, United Kingdom
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Wang S, Liu L, Blanco T, Ge H, Xia Y, Pang K, Chen Y, Dana R. Therapeutic efficacy of topical blockade of substance P in experimental allergic red eye. Ocul Surf 2022; 26:184-190. [PMID: 36067981 DOI: 10.1016/j.jtos.2022.08.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Revised: 08/26/2022] [Accepted: 08/29/2022] [Indexed: 01/29/2023]
Abstract
PURPOSE Allergic conjunctivitis is the most common cause leading to ocular redness (OR). Herein, using an animal model of allergic OR, we evaluated the therapeutic efficacy of topical blockade of substance P (SP) in treating red eye. METHODS Allergic OR was induced in guinea pigs with topical histamine. Ocular SP was blocked using a specific SP receptor (neurokinin-1 receptor, NK1R) antagonist, L-703,606, via topical application 10 min before or 10 min after histamine instillation. Animal eyes were examined and a series of images were taken for up to 60 min post-OR induction. The severity of redness was analyzed using the quantitative ocular redness index (ORI). At the end of clinical examination, conjunctival tissues were collected for histological examination of conjunctival blood vessels and infiltrating eosinophils and neutrophils. In addition, SP concentration was quantified in the tear fluid and expression levels of inflammatory cytokines were assessed in the conjunctival tissues. RESULTS Topical histamine application successfully induced red eye, evidenced by the significantly increased ORI during the observation period, with peak values at 10 min, along with significantly increased levels of SP in the tears. Topical treatment with L-703,606, either before histamine application or at the time of peak ORI, effectively reduced ORI and suppressed conjunctival blood vessel dilation, along with decreased eosinophil and neutrophil infiltration, and inflammatory cytokine expression in the conjunctiva, as well as reduced SP levels in the tears. CONCLUSIONS Topical blockade of SP effectively prevents and treats allergy-related ocular redness by suppressing blood vessel dilation and allergic inflammation.
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Affiliation(s)
- Shudan Wang
- Schepens Eye Research Institute of Massachusetts Eye and Ear, Harvard Medical School, Boston, MA, 02114, USA
| | - Lingjia Liu
- Schepens Eye Research Institute of Massachusetts Eye and Ear, Harvard Medical School, Boston, MA, 02114, USA
| | - Tomas Blanco
- Schepens Eye Research Institute of Massachusetts Eye and Ear, Harvard Medical School, Boston, MA, 02114, USA
| | - Hongyan Ge
- Schepens Eye Research Institute of Massachusetts Eye and Ear, Harvard Medical School, Boston, MA, 02114, USA
| | - Yutong Xia
- Schepens Eye Research Institute of Massachusetts Eye and Ear, Harvard Medical School, Boston, MA, 02114, USA
| | - Kunpeng Pang
- Schepens Eye Research Institute of Massachusetts Eye and Ear, Harvard Medical School, Boston, MA, 02114, USA
| | - Yihe Chen
- Schepens Eye Research Institute of Massachusetts Eye and Ear, Harvard Medical School, Boston, MA, 02114, USA
| | - Reza Dana
- Schepens Eye Research Institute of Massachusetts Eye and Ear, Harvard Medical School, Boston, MA, 02114, USA.
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Nunes MA, Toricelli M, Schöwe NM, Malerba HN, Dong-Creste KE, Farah DMAT, De Angelis K, Irigoyen MC, Gobeil F, Araujo Viel T, Buck HS. Kinin B2 Receptor Activation Prevents the Evolution of Alzheimer's Disease Pathological Characteristics in a Transgenic Mouse Model. Pharmaceuticals (Basel) 2020; 13:ph13100288. [PMID: 33019732 PMCID: PMC7601323 DOI: 10.3390/ph13100288] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2020] [Revised: 09/16/2020] [Accepted: 09/18/2020] [Indexed: 12/02/2022] Open
Abstract
Background: Alzheimer’s disease is mainly characterized by remarkable neurodegeneration in brain areas related to memory formation. This progressive neurodegeneration causes cognitive impairment, changes in behavior, functional disability, and even death. Our group has demonstrated changes in the kallikrein–kinin system (KKS) in Alzheimer’s disease (AD) experimental models, but there is a lack of evidence about the role of the KKS in Alzheimer’s disease. Aim: In order to answer this question, we evaluated the potential of the kinin B2 receptors (BKB2R) to modify AD characteristics, particularly memory impairment, neurodegeneration, and Aβ peptide deposition. Methods: To assess the effects of B2, we used transgenic Alzheimer’s disease mice treated with B2 receptor (B2R) agonists and antagonists, and performed behavioral and biochemical tests. In addition, we performed organotypic hippocampal culture of wild-type (WT) and transgenic (TG) animals, where the density of cytokines, neurotrophin BDNF, activated astrocyte marker S100B, and cell death were analyzed after treatments. Results: Treatment with the B2R agonist preserved the spatial memory of transgenic mice and decreased amyloid plaque deposition. In organotypic hippocampal culture, treatment with B2R agonist decreased cell death, neuroinflammation, and S100B levels, and increased BDNF release. Conclusions: Our results indicate that the kallikrein–kinin system plays a beneficial role in Alzheimer’s disease through B2R activation. The use of B2R agonists could, therefore, be a possible therapeutic option for patients diagnosed with Alzheimer’s disease.
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Affiliation(s)
- Marielza Andrade Nunes
- Department of Physiological Sciences, Santa Casa de Sao Paulo School of Medical Sciences, Sao Paulo 01221-020, Brazil; (M.A.N.); (M.T.); (K.E.D.-C.)
| | - Mariana Toricelli
- Department of Physiological Sciences, Santa Casa de Sao Paulo School of Medical Sciences, Sao Paulo 01221-020, Brazil; (M.A.N.); (M.T.); (K.E.D.-C.)
| | - Natalia Mendes Schöwe
- School of Arts, Sciences and Humanities, University of Sao Paulo, Sao Paulo 03828-080, Brazil; (N.M.S.); (H.N.M.); (T.A.V.)
| | - Helena Nascimento Malerba
- School of Arts, Sciences and Humanities, University of Sao Paulo, Sao Paulo 03828-080, Brazil; (N.M.S.); (H.N.M.); (T.A.V.)
| | - Karis Ester Dong-Creste
- Department of Physiological Sciences, Santa Casa de Sao Paulo School of Medical Sciences, Sao Paulo 01221-020, Brazil; (M.A.N.); (M.T.); (K.E.D.-C.)
| | - Daniela Moura Azevedo Tuma Farah
- Heart Institute (Incor), Hypertension Unit, University of Sao Paulo, Sao Paulo 05403-900, Brazil; (D.M.A.T.F.); (M.C.I.)
- Department of Physiology, Federal University of São Paulo (UNIFESP), Sao Paulo 04023-901, Brazil;
| | - Katia De Angelis
- Department of Physiology, Federal University of São Paulo (UNIFESP), Sao Paulo 04023-901, Brazil;
- Translational Physiology Laboratory, Universidade Nove de Julho (UNINOVE), Sao Paulo 01504-001, Brazil
| | - Maria Claudia Irigoyen
- Heart Institute (Incor), Hypertension Unit, University of Sao Paulo, Sao Paulo 05403-900, Brazil; (D.M.A.T.F.); (M.C.I.)
| | - Fernand Gobeil
- Department of Pharmacology and Physiology, Université de Sherbrooke, Sherbrooke, QC J1H 5N4, Canada;
| | - Tânia Araujo Viel
- School of Arts, Sciences and Humanities, University of Sao Paulo, Sao Paulo 03828-080, Brazil; (N.M.S.); (H.N.M.); (T.A.V.)
| | - Hudson Sousa Buck
- Department of Physiological Sciences, Santa Casa de Sao Paulo School of Medical Sciences, Sao Paulo 01221-020, Brazil; (M.A.N.); (M.T.); (K.E.D.-C.)
- Correspondence: ; Tel./Fax: +55-11-3367-7790
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Curran CS, Rivera DR, Kopp JB. COVID-19 Usurps Host Regulatory Networks. Front Pharmacol 2020; 11:1278. [PMID: 32922297 PMCID: PMC7456869 DOI: 10.3389/fphar.2020.01278] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2020] [Accepted: 08/03/2020] [Indexed: 01/08/2023] Open
Abstract
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection causes coronavirus disease 2019 (COVID-19). SARS-CoV-2 binds the angiotensin-converting enzyme 2 (ACE2) on the cell surface and this complex is internalized. ACE2 serves as an endogenous inhibitor of inflammatory signals associated with four major regulator systems: the renin-angiotensin-aldosterone system (RAAS), the complement system, the coagulation cascade, and the kallikrein-kinin system (KKS). Understanding the pathophysiological effects of SARS-CoV-2 on these pathways is needed, particularly given the current lack of proven, effective treatments. The vasoconstrictive, prothrombotic and pro-inflammatory conditions induced by SARS-CoV-2 can be ascribed, at least in part, to the activation of these intersecting physiological networks. Moreover, patients with immune deficiencies, hypertension, diabetes, coronary heart disease, and kidney disease often have altered activation of these pathways, either due to underlying disease or to medications, and may be more susceptible to SARS-CoV-2 infection. Certain characteristic COVID-associated skin, sensory, and central nervous system manifestations may also be linked to viral activation of the RAAS, complement, coagulation, and KKS pathways. Pharmacological interventions that target molecules along these pathways may be useful in mitigating symptoms and preventing organ or tissue damage. While effective anti-viral therapies are critically needed, further study of these pathways may identify effective adjunctive treatments and patients most likely to benefit.
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Affiliation(s)
- Colleen S Curran
- Critical Care Medicine Department, Clinical Center, National Institutes of Health, Bethesda, MD, United States
| | - Donna R Rivera
- Surveillance Research Program, Division of Cancer Control and Population Sciences, National Cancer Institute, National Institutes of Health, Rockville, MD, United States
| | - Jeffrey B Kopp
- Kidney Disease Section, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD, United States
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Lorente L, Martín MM, González-Rivero AF, Pérez-Cejas A, Sabatel R, Ramos-Gómez L, Argueso M, Cáceres JJ, Solé-Violán J, Jiménez A, García-Marín V. Serum substance P levels and early mortality of spontaneous intracerebral haemorrhage patients. J Stroke Cerebrovasc Dis 2020; 29:104893. [PMID: 32414584 DOI: 10.1016/j.jstrokecerebrovasdis.2020.104893] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Revised: 04/10/2020] [Accepted: 04/13/2020] [Indexed: 01/15/2023] Open
Abstract
INTRODUCTION AND GOAL Substance P, a neuropeptide of the tachykinin family, is involved in the neuroinflammation of different diseases of the central nervous system. To our knowledge, there is no published data on the level of circulating substance P levels in the prognosis of patients with spontaneous intracerebral hemorrhage (ICH). Therefore, the objectives of this observational and prospective study were to determine whether serum substance P levels in ICH patients were associated with early mortality and whether could be used in the mortality prognostic. MATERIAL AND METHODS We included patients with severe primary supratentorial ICH (defined as Glasgow Coma Scale < 9) from 6 Intensive Care Units of Spanish hospitals. We determined serum substance P levels at the time of severe ICH diagnosis, at fourth and at eighth day. Thirty-day mortality was considered the end-point study. FINDINGS Non-surviving (n=53) compared to surviving ICH patients (n=64) showed higher serum substance P levels at day 1 (p<0.001), day 4 (p<0.001) and day 8 (p<0.001). The area under the curve for 30-day mortality prediction by serum substance P levels was of 79% (95% CI = 70-86%; p<0.001). Kaplan-Meier analysis showed a higher 30-day mortality in patients with serum substance P levels>503 pg/mL (Hazard ratio=14.7; 95% CI=6.88-31.55; p<0.001). Multiple logistic regression analysis showed an association between serum substance P levels and 30-day mortality (Odds Ratio=1.006; 95% CI=1.002-1.010; p=0.004) controlling for ICH score, midline shift, glycemia, early evacuation of ICH. CONCLUSIONS Thus, the novel aspects our study include that serum substance P levels in severe primary ICH patients were higher in non-surviving than in surviving patients, that serum substance P levels were associated with early mortality controlling for other variables, and that serum substance P levels could be used as biomarkers of prognosis.
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Affiliation(s)
- Leonardo Lorente
- Intensive Care Unit, Hospital Universitario de Canarias, Ofra, s/n. La Laguna, 38320 Santa Cruz de Tenerife, Spain.
| | - María M Martín
- Intensive Care Unit, Hospital Universitario Nuestra Señora de Candelaria, Crta del Rosario s/n, Santa Cruz de Tenerife 38010, Spain
| | - Agustín F González-Rivero
- Laboratory Department, Hospital Universitario de Canarias, Ofra, s/n. La Laguna, 38320 Santa Cruz de Tenerife, Spain
| | - Antonia Pérez-Cejas
- Laboratory Department, Hospital Universitario de Canarias, Ofra, s/n. La Laguna, 38320 Tenerife, Spain
| | - Rafael Sabatel
- Department of Radiology, Hospital Universitario de Canarias, Ofra, s/n. La Laguna, 38320 Santa Cruz de Tenerife, Spain
| | - Luis Ramos-Gómez
- Intensive Care Unit, Hospital General La Palma, Buenavista de Arriba s/n, Breña Alta, La Palma 38713, Spain
| | - Mónica Argueso
- Intensive Care Unit, Hospital Clínico Universitario de Valencia, Avda. Blasco Ibáñez n°17-19, Valencia 46004, Spain
| | - Juan J Cáceres
- Intensive Care Unit, Hospital Insular, Plaza Dr. Pasteur s/n, Las Palmas de Gran Canaria 35016, Spain.
| | - Jordi Solé-Violán
- Intensive Care Unit, Hospital Universitario Dr. Negrín, Barranco de la Ballena s/n, Las Palmas de Gran Canaria 35010, Spain.
| | - Alejandro Jiménez
- Research Unit, Hospital Universitario de Canarias, Ofra, s/n. La Laguna, 38320 Santa Cruz de Tenerife, Spain
| | - Victor García-Marín
- Department of Neurosurgery, Hospital Universitario de Canarias, Ofra, s/n. La Laguna, 38320 Santa Cruz de Tenerife, Spain
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Lorente L, Martín MM, Pérez-Cejas A, González-Rivero AF, Argueso M, Ramos L, Solé-Violán J, Cáceres JJ, Jiménez A, García-Marín V. Persistently High Serum Substance P Levels and Early Mortality in Patients with Severe Traumatic Brain Injury. World Neurosurg 2019; 132:e613-e617. [DOI: 10.1016/j.wneu.2019.08.064] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2019] [Revised: 08/08/2019] [Accepted: 08/09/2019] [Indexed: 01/29/2023]
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9
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Jayaraman S, Al Shoyaib A, Kocot J, Villalba H, Alamri FF, Rashid M, Wangler NJ, Chowdhury EA, German N, Arumugam TV, Abbruscato TJ, Karamyan VT. Peptidase neurolysin functions to preserve the brain after ischemic stroke in male mice. J Neurochem 2019; 153:120-137. [PMID: 31486527 DOI: 10.1111/jnc.14864] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2019] [Revised: 08/26/2019] [Accepted: 08/28/2019] [Indexed: 12/13/2022]
Abstract
Previous studies documented up-regulation of peptidase neurolysin (Nln) after brain ischemia, however, the significance of Nln function in the post-stroke brain remained unknown. The aim of this study was to assess the functional role of Nln in the brain after ischemic stroke. Administration of a specific Nln inhibitor Agaricoglyceride A (AgaA) to mice after stroke in a middle cerebral artery occlusion model, dose-dependently aggravated injury measured by increased infarct and edema volumes, blood-brain barrier disruption, increased levels of interleukin 6 and monocyte chemoattractant protein-1, neurological and motor deficit 24 h after stroke. In this setting, AgaA resulted in inhibition of Nln in the ischemic hemisphere leading to increased levels of Nln substrates bradykinin, neurotensin, and substance P. AgaA lacked effects on several physiological parameters and appeared non-toxic to mice. In a reverse approach, we developed an adeno-associated viral vector (AAV2/5-CAG-Nln) to overexpress Nln in the mouse brain. Applicability of AAV2/5-CAG-Nln to transduce catalytically active Nln was confirmed in primary neurons and in vivo. Over-expression of Nln in the mouse brain was also accompanied by decreased levels of its substrates. Two weeks after in vivo transduction of Nln using the AAV vector, mice were subjected to middle cerebral artery occlusion and the same outcome measures were evaluated 72 h later. These experiments revealed that abundance of Nln in the brain protects animals from stroke. This study is the first to document functional significance of Nln in pathophysiology of stroke and provide evidence that Nln is an endogenous mechanism functioning to preserve the brain from ischemic injury.
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Affiliation(s)
- Srinidhi Jayaraman
- Department of Pharmaceutical Sciences, School of Pharmacy, TTUHSC, Amarillo, Texas, USA
| | - Abdullah Al Shoyaib
- Department of Pharmaceutical Sciences, School of Pharmacy, TTUHSC, Amarillo, Texas, USA
| | - Joanna Kocot
- Department of Pharmaceutical Sciences, School of Pharmacy, TTUHSC, Amarillo, Texas, USA
| | - Heidi Villalba
- Department of Pharmaceutical Sciences, School of Pharmacy, TTUHSC, Amarillo, Texas, USA
| | - Faisal F Alamri
- Department of Pharmaceutical Sciences, School of Pharmacy, TTUHSC, Amarillo, Texas, USA
| | - Mamoon Rashid
- Department of Pharmaceutical Sciences, School of Pharmacy, TTUHSC, Amarillo, Texas, USA
| | - Naomi J Wangler
- Department of Pharmaceutical Sciences, School of Pharmacy, TTUHSC, Amarillo, Texas, USA
| | - Ekram A Chowdhury
- Department of Pharmaceutical Sciences, School of Pharmacy, TTUHSC, Amarillo, Texas, USA
| | - Nadezhda German
- Department of Pharmaceutical Sciences, School of Pharmacy, TTUHSC, Amarillo, Texas, USA
| | - Thiruma V Arumugam
- Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Thomas J Abbruscato
- Department of Pharmaceutical Sciences, School of Pharmacy, TTUHSC, Amarillo, Texas, USA.,Center for Blood Brain Barrier Research, School of Pharmacy, TTUHSC, Amarillo, Texas, USA
| | - Vardan T Karamyan
- Department of Pharmaceutical Sciences, School of Pharmacy, TTUHSC, Amarillo, Texas, USA.,Center for Blood Brain Barrier Research, School of Pharmacy, TTUHSC, Amarillo, Texas, USA
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Schultz NEØ, Hasseldam H, Rasmussen RS, Vindegaard N, McWilliam O, Iversen HK, Johansen FF. Statin treatment before stroke reduces pro-inflammatory cytokine levels after stroke. Neurol Res 2018; 41:289-297. [DOI: 10.1080/01616412.2018.1558000] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
| | - Henrik Hasseldam
- Biotech Research and Innovation Centre, University of Copenhagen, Copenhagen, Denmark
| | | | - Nina Vindegaard
- Biotech Research and Innovation Centre, University of Copenhagen, Copenhagen, Denmark
| | - Oskar McWilliam
- Biotech Research and Innovation Centre, University of Copenhagen, Copenhagen, Denmark
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Protein kinase Cε regulates nuclear translocation of extracellular signal-regulated kinase, which contributes to bradykinin-induced cyclooxygenase-2 expression. Sci Rep 2018; 8:8535. [PMID: 29867151 PMCID: PMC5986758 DOI: 10.1038/s41598-018-26473-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2018] [Accepted: 05/04/2018] [Indexed: 01/18/2023] Open
Abstract
The proinflammatory mediator bradykinin stimulated cyclooxygenase-2 (COX-2) expression and subsequently prostaglandin E2 synthesis in dermal fibroblasts. The involvement of B2 receptors and Gαq in the role of bradykinin was suggested by using pharmacological inhibitors. The PKC activator PMA stimulated COX-2 mRNA expression. Bradykinin failed to induce COX-2 mRNA expression in the presence of PKC inhibitors, whereas the effect of bradykinin was observed in the absence of extracellular Ca2+. Bradykinin-induced COX-2 mRNA expression was inhibited in cells transfected with PKCε siRNA. These observations suggest that the novel PKCε is concerned with bradykinin-induced COX-2 expression. Bradykinin-induced PKCε phosphorylation and COX-2 mRNA expression were inhibited by an inhibitor of 3-phosphoinositide-dependent protein kinase-1 (PDK-1), and bradykinin-induced PDK-1 phosphorylation was inhibited by phospholipase D (PLD) inhibitors, suggesting that PLD/PDK-1 pathway contributes to bradykinin-induced PKCε activation. Pharmacological and knockdown studies suggest that the extracellular signal-regulated kinase 1 (ERK1) MAPK signaling is involved in bradykinin-induced COX-2 expression. Bradykinin-induced ERK phosphorylation was attenuated in the cells pretreated with PKC inhibitors or transfected with PKCε siRNA. We observed the interaction between PKCε and ERK by co-immunoprecipitation experiments. These observations suggest that PKCε activation contributes to the regulation of ERK1 activation. Bradykinin stimulated the accumulation of phosphorylated ERK in the nuclear fraction, that was inhibited in the cells treated with PKC inhibitors or transfected with PKCε siRNA. Consequently, we concluded that bradykinin activates PKCε via the PLD/PDK-1 pathway, which subsequently induces activation and translocation of ERK1 into the nucleus, and contributes to COX-2 expression for prostaglandin E2 synthesis in dermal fibroblasts.
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Nokkari A, Abou-El-Hassan H, Mechref Y, Mondello S, Kindy MS, Jaffa AA, Kobeissy F. Implication of the Kallikrein-Kinin system in neurological disorders: Quest for potential biomarkers and mechanisms. Prog Neurobiol 2018; 165-167:26-50. [PMID: 29355711 PMCID: PMC6026079 DOI: 10.1016/j.pneurobio.2018.01.003] [Citation(s) in RCA: 49] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2017] [Accepted: 01/15/2018] [Indexed: 01/06/2023]
Abstract
Neurological disorders represent major health concerns in terms of comorbidity and mortality worldwide. Despite a tremendous increase in our understanding of the pathophysiological processes involved in disease progression and prevention, the accumulated knowledge so far resulted in relatively moderate translational benefits in terms of therapeutic interventions and enhanced clinical outcomes. Aiming at specific neural molecular pathways, different strategies have been geared to target the development and progression of such disorders. The kallikrein-kinin system (KKS) is among the most delineated candidate systems due to its ubiquitous roles mediating several of the pathophysiological features of these neurological disorders as well as being implicated in regulating various brain functions. Several experimental KKS models revealed that the inhibition or stimulation of the two receptors of the KKS system (B1R and B2R) can exhibit neuroprotective and/or adverse pathological outcomes. This updated review provides background details of the KKS components and their functions in different neurological disorders including temporal lobe epilepsy, traumatic brain injury, stroke, spinal cord injury, Alzheimer's disease, multiple sclerosis and glioma. Finally, this work will highlight the putative roles of the KKS components as potential neurotherapeutic targets and provide future perspectives on the possibility of translating these findings into potential clinical biomarkers in neurological disease.
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Affiliation(s)
- Amaly Nokkari
- Department of Biochemistry and Molecular Genetics, Faculty of Medicine, American University of Beirut, Lebanon
| | - Hadi Abou-El-Hassan
- Faculty of Medicine, American University of Beirut Medical Center, Beirut, Lebanon
| | - Yehia Mechref
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, TX, USA
| | - Stefania Mondello
- Department of Biomedical and Dental Sciences and Morphofunctional Imaging, University of Messina, Messina, Italy
| | - Mark S Kindy
- Department of Pharmaceutical Science, College of Pharmacy, University of South Florida, Tampa, FL, USA; James A. Haley VA Medical Center, Tampa, FL, USA
| | - Ayad A Jaffa
- Department of Biochemistry and Molecular Genetics, Faculty of Medicine, American University of Beirut, Lebanon; Department of Medicine, Medical University of South, Charleston, SC, USA.
| | - Firas Kobeissy
- Department of Biochemistry and Molecular Genetics, Faculty of Medicine, American University of Beirut, Lebanon; Center for Neuroproteomics & Biomarkers Research, Department of Psychiatry, McKnight Brain Institute, University of Florida, Gainesville, FL, USA.
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13
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Dutra RC. Kinin receptors: Key regulators of autoimmunity. Autoimmun Rev 2017; 16:192-207. [DOI: 10.1016/j.autrev.2016.12.011] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2016] [Accepted: 10/25/2016] [Indexed: 01/06/2023]
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Nicoletti NF, Sénécal J, da Silva VD, Roxo MR, Ferreira NP, de Morais RLT, Pesquero JB, Campos MM, Couture R, Morrone FB. Primary Role for Kinin B1 and B2 Receptors in Glioma Proliferation. Mol Neurobiol 2016; 54:7869-7882. [DOI: 10.1007/s12035-016-0265-9] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2016] [Accepted: 10/26/2016] [Indexed: 11/30/2022]
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Lorente L, Martín MM, Almeida T, Pérez-Cejas A, Ramos L, Argueso M, Riaño-Ruiz M, Solé-Violán J, Hernández M. Serum Levels of Substance P and Mortality in Patients with a Severe Acute Ischemic Stroke. Int J Mol Sci 2016; 17:E991. [PMID: 27338372 PMCID: PMC4926519 DOI: 10.3390/ijms17060991] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2016] [Revised: 06/07/2016] [Accepted: 06/15/2016] [Indexed: 02/07/2023] Open
Abstract
Substance P (SP), a member of tachykinin family, is involved in the inflammation of the central nervous system and in the appearance of cerebral edema. Higher serum levels of SP have been found in 18 patients with cerebral ischemia compared with healthy controls. The aim of our multi-center study was to analyze the possible association between serum levels of SP and mortality in ischemic stroke patients. We included patients with malignant middle cerebral artery infarction (MMCAI) and a Glasgow Coma Scale (GCS) lower than 9. Non-surviving patients at 30 days (n = 31) had higher serum concentrations of SP levels at diagnosis of severe MMCAI than survivors (n = 30) (p < 0.001). We found in multiple regression an association between serum concentrations of SP higher than 362 pg/mL and mortality at 30 days (Odds Ratio = 5.33; 95% confidence interval = 1.541-18.470; p = 0.008) after controlling for age and GCS. Thus, the major novel finding of our study was the association between serum levels of SP and mortality in patients suffering from severe acute ischemic stroke.
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Affiliation(s)
- Leonardo Lorente
- Intensive Care Unit, Hospital Universitario de Canarias, Ofra, s/n. La Laguna, Tenerife 38320, Spain.
| | - María M Martín
- Intensive Care Unit, Hospital Universitario Nuestra Señora Candelaria, Crta Rosario s/n, Santa Cruz Tenerife 38010, Spain.
| | - Teresa Almeida
- Unidad de Genética, Instituto de Enfermedades Tropicales y Salud Pública de Canarias, Universidad de La Laguna, Campus de Anchieta, Avda. Astrofísico Francisco Sánchez s/n, La Laguna, Tenerife 38071, Spain.
| | - Antonia Pérez-Cejas
- Laboratory Department, Hospital Universitario de Canarias, Ofra, s/n. La Laguna, Tenerife 38320, Spain.
| | - Luis Ramos
- Intensive Care Unit, Hospital General La Palma, Buenavista de Arriba s/n, Breña Alta, La Palma 38713, Spain.
| | - Mónica Argueso
- Intensive Care Unit, Hospital Clínico Universitario de Valencia, Avda. Blasco Ibáñez nº17-19, Valencia 46004, Spain.
| | - Marta Riaño-Ruiz
- Servicio de Bioquímica Clínica, Complejo Hospitalario Universitario Insular Materno-Infantil, Plaza Dr. Pasteur s/n, Las Palmas de Gran Canaria 35016, Spain.
| | - Jordi Solé-Violán
- Intensive Care Unit, Hospital Universitario Dr. Negrín, CIBERES. Barranco de la Ballena s/n, Las Palmas de Gran Canaria 35010, Spain.
| | - Mariano Hernández
- Unidad de Genética, Instituto de Enfermedades Tropicales y Salud Pública de Canarias, Universidad de La Laguna, Campus de Anchieta, Avda. Astrofísico Francisco Sánchez s/n, La Laguna, Tenerife 38071, Spain.
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16
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Serum Levels of Substance P and Mortality in Patients with a Severe Acute Ischemic Stroke. Int J Mol Sci 2016. [PMID: 27338372 DOI: 10.3390/ijms170609] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
Substance P (SP), a member of tachykinin family, is involved in the inflammation of the central nervous system and in the appearance of cerebral edema. Higher serum levels of SP have been found in 18 patients with cerebral ischemia compared with healthy controls. The aim of our multi-center study was to analyze the possible association between serum levels of SP and mortality in ischemic stroke patients. We included patients with malignant middle cerebral artery infarction (MMCAI) and a Glasgow Coma Scale (GCS) lower than 9. Non-surviving patients at 30 days (n = 31) had higher serum concentrations of SP levels at diagnosis of severe MMCAI than survivors (n = 30) (p < 0.001). We found in multiple regression an association between serum concentrations of SP higher than 362 pg/mL and mortality at 30 days (Odds Ratio = 5.33; 95% confidence interval = 1.541-18.470; p = 0.008) after controlling for age and GCS. Thus, the major novel finding of our study was the association between serum levels of SP and mortality in patients suffering from severe acute ischemic stroke.
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17
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Naaldijk YM, Bittencourt MC, Sack U, Ulrich H. Kinins and microglial responses in bipolar disorder: a neuroinflammation hypothesis. Biol Chem 2016; 397:283-96. [DOI: 10.1515/hsz-2015-0257] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2015] [Accepted: 02/04/2016] [Indexed: 12/27/2022]
Abstract
Abstract
Bipolar disorder (BD) is a severe psychiatric disorder that affects up to 15% of the worldwide population. Characterized by switches in mood between mania and depression, its etiology is still unknown and efforts have been made to elucidate the mechanisms involved in first episode, development and progression of the disorder. Microglia activation, abnormal activity of GSK-3β and reduction in neurotrophic factor expression related to neuroinflammatory processes have been indicated to be part of the disorder’s pathophysiology. Lithium, the main mood stabilizer used for the treatment and prevention of relapses, acts as an anti-inflammatory agent. Based on that, here we suggest a neuroinflammatory pathway for would be BD progression, in which microglia activation states modulated via constitutive induction of kinin-B1 receptor and reduction of kinin-B2 receptor expression and activity.
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Abstract
Immunomodulators regulate stem cell activity at all stages of development as well as during adulthood. Embryonic stem cell (ESC) proliferation as well as neurogenic processes during embryonic development are controlled by factors of the immune system. We review here immunophenotypic expression patterns of different stem cell types, including ESC, neural (NSC) and tissue-specific mesenchymal stem cells (MSC), and focus on immunodulatory properties of these cells. Immune and inflammatory responses, involving actions of cytokines as well as toll-like receptor (TLR) signaling are known to affect the differentiation capacity of NSC and MSC. Secretion of pro- and anti-inflammatory messengers by MSC have been observed as the consequence of TLR and cytokine activation and promotion of differentiation into specified phenotypes. As result of augmented differentiation capacity, stem cells secrete angiogenic factors including vascular endothelial growth factor, resulting in multifactorial actions in tissue repair. Immunoregulatory properties of tissue specific adult stem cells are put into the context of possible clinical applications.
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Ziebell JM, Rowe RK, Harrison JL, Eakin KC, Colburn T, Willyerd FA, Lifshitz J. Experimental diffuse brain injury results in regional alteration of gross vascular morphology independent of neuropathology. Brain Inj 2015; 30:217-24. [PMID: 26646974 DOI: 10.3109/02699052.2015.1090012] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
PRIMARY OBJECTIVE A dynamic relationship exists between diffuse traumatic brain injury and changes to the neurovascular unit. The purpose of this study was to evaluate vascular changes during the first week following diffuse TBI. It was hypothesized that pathology is associated with modification of the vasculature. METHODS Male Sprague-Dawley rats underwent either midline fluid percussion injury or sham-injury. Brain tissue was collected 1, 2 or 7 days post-injury or sham-injury (n = 3/time point). Tissue was collected and stained by de Olmos amino-cupric silver technique to visualize neuropathology or animals were perfused with AltaBlue casting resin before high-resolution vascular imaging. The average volume, surface area, radius, branching and tortuosity of the vessels were evaluated across three regions of interest. RESULTS In M2, average vessel volume (p < 0.01) and surface area (p < 0.05) were significantly larger at 1 day relative to 2 days, 7 days and sham. In S1BF and VPM, no significant differences in the average vessel volume or surface area at any of the post-injury time points were observed. No significant changes in average radius, branching or tortuosity were observed. CONCLUSIONS Preliminary findings suggest gross morphological changes within the vascular network likely represent an acute response to mechanical forces of injury, rather than delayed or chronic pathological processes.
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Affiliation(s)
- Jenna M Ziebell
- a BARROW Neurological Institute at Phoenix Children's Hospital , Phoenix , AZ , USA.,b Department of Child Health , University of Arizona College of Medicine - Phoenix , Phoenix , AZ , USA
| | - Rachel K Rowe
- a BARROW Neurological Institute at Phoenix Children's Hospital , Phoenix , AZ , USA.,b Department of Child Health , University of Arizona College of Medicine - Phoenix , Phoenix , AZ , USA.,c Phoenix VA Healthcare System , Phoenix , AZ , USA
| | - Jordan L Harrison
- a BARROW Neurological Institute at Phoenix Children's Hospital , Phoenix , AZ , USA.,b Department of Child Health , University of Arizona College of Medicine - Phoenix , Phoenix , AZ , USA
| | - Katharine C Eakin
- a BARROW Neurological Institute at Phoenix Children's Hospital , Phoenix , AZ , USA.,b Department of Child Health , University of Arizona College of Medicine - Phoenix , Phoenix , AZ , USA
| | - Taylor Colburn
- a BARROW Neurological Institute at Phoenix Children's Hospital , Phoenix , AZ , USA.,b Department of Child Health , University of Arizona College of Medicine - Phoenix , Phoenix , AZ , USA
| | - F Anthony Willyerd
- a BARROW Neurological Institute at Phoenix Children's Hospital , Phoenix , AZ , USA.,b Department of Child Health , University of Arizona College of Medicine - Phoenix , Phoenix , AZ , USA.,d Critical Care, Phoenix Children's Hospital , Phoenix , AZ , USA
| | - Jonathan Lifshitz
- a BARROW Neurological Institute at Phoenix Children's Hospital , Phoenix , AZ , USA.,b Department of Child Health , University of Arizona College of Medicine - Phoenix , Phoenix , AZ , USA.,c Phoenix VA Healthcare System , Phoenix , AZ , USA.,e Psychology , Arizona State University , Tempe , AZ , USA
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20
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Zanichelli A, Wu MA, Andreoli A, Mansi M, Cicardi M. The safety of treatments for angioedema with hereditary C1 inhibitor deficiency. Expert Opin Drug Saf 2015; 14:1725-36. [PMID: 26429506 DOI: 10.1517/14740338.2015.1094053] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
INTRODUCTION Angioedema is a localized and self-limiting edema of the subcutaneous and submucosal tissue. Hereditary angioedema with C1 inhibitor deficiency (C1-INH-HAE) is the best characterized form of hereditary angioedema. In C1-INH-HAE, the reduced plasma levels of C1-INH cause instability of the contact system with release of bradykinin, the key mediator of angioedema. C1-INH-HAE is characterized by recurrent skin swelling, abdominal pain, and potentially life-threatening upper airways obstruction. Knowledge of the molecular mechanisms leading from C1-INH deficiency to angioedema allowed the development of several therapies. AREAS COVERED The aim of this review article is to discuss the safety of currently available treatments of C1-INH-HAE. The authors give an insight on the mechanism of action and safety profile of drugs for treatment of acute attacks and for short- and long-term prophylaxis. Evidence from systematic reviews, clinical trials, retrospective studies, and case reports is summarized in this review. EXPERT OPINION C1-INH-HAE is a disabling, life-threatening condition that lasts life-long. Different therapeutic approaches with different drugs provide significant benefit to patients. Safety profiles of these therapies are critical for optimal therapeutic decision and need to be known by C1-INH-HAE treating physicians for appropriate risk/benefit evaluation.
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Affiliation(s)
- Andrea Zanichelli
- a University of Milan, Luigi Sacco Hospital, Department of Biomedical and Clinical Sciences "Luigi Sacco" , Milan, Italy +39 02 50 31 98 29 ; +39 02 50 31 98 28 ;
| | - Maddalena Alessandra Wu
- a University of Milan, Luigi Sacco Hospital, Department of Biomedical and Clinical Sciences "Luigi Sacco" , Milan, Italy +39 02 50 31 98 29 ; +39 02 50 31 98 28 ;
| | - Arnaldo Andreoli
- a University of Milan, Luigi Sacco Hospital, Department of Biomedical and Clinical Sciences "Luigi Sacco" , Milan, Italy +39 02 50 31 98 29 ; +39 02 50 31 98 28 ;
| | - Marta Mansi
- a University of Milan, Luigi Sacco Hospital, Department of Biomedical and Clinical Sciences "Luigi Sacco" , Milan, Italy +39 02 50 31 98 29 ; +39 02 50 31 98 28 ;
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Caetano AL, Dong-Creste KE, Amaral FA, Monteiro-Silva KC, Pesquero JB, Araujo MS, Montor WR, Viel TA, Buck HS. Kinin B2 receptor can play a neuroprotective role in Alzheimer's disease. Neuropeptides 2015; 53:51-62. [PMID: 26387425 DOI: 10.1016/j.npep.2015.09.001] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/02/2014] [Revised: 09/04/2015] [Accepted: 09/05/2015] [Indexed: 12/19/2022]
Abstract
Alzheimer's disease (AD) is characterized by cognitive decline, presence of amyloid-beta peptide (Aβ) aggregates and neurofibrillary tangles. Kinins act through B1 and B2 G-protein coupled receptors (B1R and B2R). Chronic infusion of Aβ peptide leads to memory impairment and increases in densities of both kinin receptors in memory processing areas. Similar memory impairment was observed in C57BL/6 mice (WTAβ) but occurred earlier in mice lacking B2R (KOB2Aβ) and was absent in mice lacking B1R (KOB1Aβ). Thus, the aim of this study was to evaluate the participation of B1R and B2R in Aβ peptide induced cognitive deficits through the evaluation of densitiesof kinin receptors, synapses, cell bodies and number of Aβ deposits in brain ofWTAβ, KOB1Aβ and KOB2Aβ mice. An increase in B2R density was observed in both WTAβ and KOB1Aβ in memory processing related areas. KOB1Aβ showed a decrease in neuronal density and an increase in synaptic density and, in addition, an increase in Aβ deposits in KOB2Aβ was observed. In conclusion, memory preservation in KOB1Aβ, could be due to the increase in densities of B2R, suggesting a neuroprotective role for B2R, reinforced by the increased number of Aβ plaques in KOB2Aβ. Our data point to B2R as a potential therapeutic target in AD.
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Affiliation(s)
- A L Caetano
- Department of Physiological Sciences, Santa Casa de Sao Paulo School of Medical Sciences, Sao Paulo, SP CEP 01221-020, Brazil; Research Group on Neuropharmacology of Aging, Brazil
| | - K E Dong-Creste
- Department of Physiological Sciences, Santa Casa de Sao Paulo School of Medical Sciences, Sao Paulo, SP CEP 01221-020, Brazil; Research Group on Neuropharmacology of Aging, Brazil
| | - F A Amaral
- Department of Physiological Sciences, Santa Casa de Sao Paulo School of Medical Sciences, Sao Paulo, SP CEP 01221-020, Brazil
| | - K C Monteiro-Silva
- Department of Physiological Sciences, Santa Casa de Sao Paulo School of Medical Sciences, Sao Paulo, SP CEP 01221-020, Brazil
| | - J B Pesquero
- Department of Biophysics, Federal University of Sao Paulo, São Paulo, SP CEP 04021-001, Brazil
| | - M S Araujo
- Department of Biochemistry, Federal University of Sao Paulo, São Paulo, SP CEP 04021-001, Brazil
| | - W R Montor
- Department of Physiological Sciences, Santa Casa de Sao Paulo School of Medical Sciences, Sao Paulo, SP CEP 01221-020, Brazil
| | - T A Viel
- School of Arts, Sciences and Humanities and Graduation Course on Pharmacology at Institute of Biomedical Sciences, University of Sao Paulo, Sao Paulo, SP CEP 03828-080, Brazil; Research Group on Neuropharmacology of Aging, Brazil
| | - H S Buck
- Department of Physiological Sciences, Santa Casa de Sao Paulo School of Medical Sciences, Sao Paulo, SP CEP 01221-020, Brazil; Research Group on Neuropharmacology of Aging, Brazil
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Pharmacological Alternatives for the Treatment of Neurodegenerative Disorders: Wasp and Bee Venoms and Their Components as New Neuroactive Tools. Toxins (Basel) 2015; 7:3179-209. [PMID: 26295258 PMCID: PMC4549745 DOI: 10.3390/toxins7083179] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2015] [Revised: 08/01/2015] [Accepted: 08/05/2015] [Indexed: 12/11/2022] Open
Abstract
Neurodegenerative diseases are relentlessly progressive, severely impacting affected patients, families and society as a whole. Increased life expectancy has made these diseases more common worldwide. Unfortunately, available drugs have insufficient therapeutic effects on many subtypes of these intractable diseases, and adverse effects hamper continued treatment. Wasp and bee venoms and their components are potential means of managing or reducing these effects and provide new alternatives for the control of neurodegenerative diseases. These venoms and their components are well-known and irrefutable sources of neuroprotectors or neuromodulators. In this respect, the present study reviews our current understanding of the mechanisms of action and future prospects regarding the use of new drugs derived from wasp and bee venom in the treatment of major neurodegenerative disorders, including Alzheimer’s Disease, Parkinson’s Disease, Epilepsy, Multiple Sclerosis and Amyotrophic Lateral Sclerosis.
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Lu CT, Jin RR, Jiang YN, Lin Q, Yu WZ, Mao KL, Tian FR, Zhao YP, Zhao YZ. Gelatin nanoparticle-mediated intranasal delivery of substance P protects against 6-hydroxydopamine-induced apoptosis: an in vitro and in vivo study. DRUG DESIGN DEVELOPMENT AND THERAPY 2015; 9:1955-62. [PMID: 25897205 PMCID: PMC4396575 DOI: 10.2147/dddt.s77237] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
BACKGROUND The aim of this study was to investigate the protective role of intranasally administered substance P-loaded gelatin nanoparticles (SP-GNPs) against 6-hydroxydopamine (6-OHDA)-induced apoptosis in vitro and in vivo, and to provide a new strategy for treating brain pathology, such as Parkinson's disease. METHODS SP-GNPs were prepared by a water-in-water emulsion method, and their stability, encapsulating efficiency, and loading capacity were evaluated. PC-12 cells were used to examine the enhancement of growth and inhibition of apoptosis by SP-GNPs in vitro using MTT assays. In the in vivo study, hemiparkinsonian rats were created by intracerebroventricular injection of 6-OHDA. The rats then received intranasal SP-GNPs daily for 2 weeks. Functional improvement was assessed by quantifying rotational behavior, and the degree of apoptosis was assessed by immunohistochemical staining for caspase-3 in the substantia nigra region. RESULTS PC-12 cells with 6-OHDA-induced disease treated with SP-GNPs showed higher cell viability than their untreated counterparts, and cell viability increased as the concentration of substance P (SP) increased, indicating that SP could enhance cell growth and inhibit the cell apoptosis induced by 6-OHDA. Rats with 6-OHDA-induced hemiparkinsonism treated with SP-GNPs made fewer rotations and showed less staining for caspase-3 than their counterparts not treated with SP, indicating that SP protects rats with 6-OHDA-induced hemiparkinsonism from apoptosis and therefore demonstrates their functional improvement. CONCLUSION Intranasal delivery of SP-GNPs protects against 6-OHDA-induced apoptosis both in vitro and in vivo.
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Affiliation(s)
- Cui-Tao Lu
- The Second Affiliated Hospital, Wenzhou Medical University, Wenzhou, People's Republic of China ; School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, People's Republic of China
| | - Rong-Rong Jin
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, People's Republic of China
| | - Yi-Na Jiang
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, People's Republic of China
| | - Qian Lin
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, People's Republic of China
| | - Wen-Ze Yu
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, People's Republic of China
| | - Kai-Li Mao
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, People's Republic of China
| | - Fu-Rong Tian
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, People's Republic of China
| | - Ya-Ping Zhao
- The Second Affiliated Hospital, Wenzhou Medical University, Wenzhou, People's Republic of China
| | - Ying-Zheng Zhao
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, People's Republic of China
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Negraes PD, Trujillo CA, Pillat MM, Teng YD, Ulrich H. Roles of kinins in the nervous system. Cell Transplant 2015; 24:613-23. [PMID: 25839228 DOI: 10.3727/096368915x687778] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
The kallikrein-kinin system (KKS) is an endogenous pathway involved in many biological processes. Although primarily related to blood pressure control and inflammation, its activation goes beyond these effects. Neurogenesis and neuroprotection might be stimulated by bradykinin being of great interest for clinical applications following brain injury. This peptide is also an important player in spinal cord injury pathophysiology and recovery, in which bradykinin receptor blockers represent substantial therapeutic potential. Here, we highlight the participation of kinin receptors and especially bradykinin in mediating ischemia pathophysiology in the central and peripheral nervous systems. Moreover, we explore the recent advances on mechanistic and therapeutic targets for biological, pathological, and neural repair processes involving kinins.
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Affiliation(s)
- Priscilla D Negraes
- Departamento de Bioquímica, Instituto de Química, Universidade de São Paulo, São Paulo, Brazil
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Torika N, Filipovich-Rimon T, Asraf K, Roasso E, Danon A, Fleisher-Berkovich S. Differential regulation of astrocyte prostaglandin response by kinins: possible role for mitogen activated protein kinases. Eur J Pharmacol 2014; 741:323-9. [PMID: 25169427 DOI: 10.1016/j.ejphar.2014.08.013] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2014] [Revised: 08/17/2014] [Accepted: 08/18/2014] [Indexed: 12/13/2022]
Abstract
The role of kinins, well known as peripheral inflammatory mediators, in the modulation of brain inflammation is not completely understood. The present data show that bradykinin, a B2 receptor agonist, enhanced both basal and lipopolysaccharide (LPS)-induced cyclooxygenase-2 mRNA and protein levels and prostaglandin E2 synthesis in primary rat astrocytes. By contrast, Lys-des-Arg(9)-bradykinin, which is a bradykinin breakdown product and a selective kinin B1 receptor agonist, attenuated both basal and LPS-induced astrocyte cyclooxygenase-2 mRNA levels and prostaglandin E2 production. Pre-treating the cells with p42/p44 MAPK but not with JNK or p38 inhibitors completely abrogated PGE2 synthesis in cells stimulated with LPS in the presence of bradykinin or bradykinin B1 receptor agonist. Bradykinin, but not the bradykinin B1 receptor agonist, augmented p42/p44 MAPK phosphorylation. The phosphorylation of JNK and p38 was not altered upon exposure to Bradykinin or the bradykinin B1 receptor agonist. These results suggest that the dual delayed effect of kinins on PGE2 synthesis may be due to differential regulation of COX-2 and signaling molecules such as p42/p44 MAPKs. Thus, kinins may exert opposing actions on brain inflammation and neurodegenerative diseases.
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Affiliation(s)
- Nofar Torika
- Department of Clinical Biochemistry and Pharmacology, Ben-Gurion University of the Negev, P.O. Box 653, Beer-Sheva 84105, Israel
| | - Talia Filipovich-Rimon
- Department of Clinical Biochemistry and Pharmacology, Ben-Gurion University of the Negev, P.O. Box 653, Beer-Sheva 84105, Israel
| | - Keren Asraf
- Department of Clinical Biochemistry and Pharmacology, Ben-Gurion University of the Negev, P.O. Box 653, Beer-Sheva 84105, Israel
| | - Ella Roasso
- Department of Clinical Biochemistry and Pharmacology, Ben-Gurion University of the Negev, P.O. Box 653, Beer-Sheva 84105, Israel
| | - Abraham Danon
- Department of Clinical Biochemistry and Pharmacology, Ben-Gurion University of the Negev, P.O. Box 653, Beer-Sheva 84105, Israel
| | - Sigal Fleisher-Berkovich
- Department of Clinical Biochemistry and Pharmacology, Ben-Gurion University of the Negev, P.O. Box 653, Beer-Sheva 84105, Israel.
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Iturri Clavero F, González Uriarte A, Tamayo Medel G, Gamboa Setién PM. [Prophylactic use of icatibant before tracheal intubation of a patient with hereditary angioedema type III. (A literature review of perioperative management of patients with hereditary angioedema type III)]. REVISTA ESPANOLA DE ANESTESIOLOGIA Y REANIMACION 2014; 61:375-381. [PMID: 24931134 DOI: 10.1016/j.redar.2014.01.011] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2013] [Revised: 12/18/2013] [Accepted: 01/28/2014] [Indexed: 06/03/2023]
Abstract
Type III hereditary angioedema is a rare familial disorder that has recently been described as a separate condition. Triggers for episodes of angioedema include surgery, dental procedures, and tracheal intubation maneuvers. Since episodes affecting the upper airway are potentially life-threatening, prophylactic treatment is recommended in these situations. The use of icatibant (Firazyr(®)), for prevention of angioedema prior to tracheal intubation, is reported in a patient with type iii hereditary angioedema. A literature review on the anesthetic management of this condition was conducted.
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Affiliation(s)
- F Iturri Clavero
- Servicio de Anestesiología y Reanimación, Hospital Universitario de Cruces, Baracaldo, Vizcaya, España.
| | - A González Uriarte
- Servicio de Anestesiología y Reanimación, Hospital Universitario de Cruces, Baracaldo, Vizcaya, España
| | - G Tamayo Medel
- Servicio de Anestesiología y Reanimación, Hospital Universitario de Cruces, Baracaldo, Vizcaya, España; Departamento de Farmacología, Universidad del País Vasco, Leioa, Vizcaya, España
| | - P M Gamboa Setién
- Servicio de Alergología, Hospital de Basurto, Basurto, Vizcaya, España
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Leonard AV, Thornton E, Vink R. NK1 receptor blockade is ineffective in improving outcome following a balloon compression model of spinal cord injury. PLoS One 2014; 9:e98364. [PMID: 24859234 PMCID: PMC4032275 DOI: 10.1371/journal.pone.0098364] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2014] [Accepted: 05/01/2014] [Indexed: 11/21/2022] Open
Abstract
The neuropeptide substance P (SP) is a well-known mediator of neurogenic inflammation following a variety of CNS disorders. Indeed, inhibition of SP through antagonism of its receptor, the tachykinin NK1 receptor, has been shown to be beneficial following both traumatic brain injury and stroke. Such studies demonstrated that administration of an NK1 receptor antagonist reduced blood-brain-barrier permeability, edema development and improved functional outcome. Furthermore, our recent studies have demonstrated a potential role for SP in mediating neurogenic inflammation following traumatic spinal cord injury (SCI). Accordingly, the present study investigates whether inhibition of SP may similarly play a neuroprotective role following traumatic SCI. A closed balloon compression injury was induced at T10 in New Zealand White rabbits. At 30 minutes post-injury an NK1 receptor antagonist was administered intravenously. Animals were thereafter assessed for blood spinal cord barrier (BSCB) permeability, spinal water content (edema), intrathecal pressure (ITP), and histological and functional outcome from 5 hours to 2 weeks post-SCI. Administration of an NK1 receptor antagonist was not effective in reducing BSCB permeability, edema, ITP, or functional deficits following SCI. We conclude that SP mediated neurogenic inflammation does not seem to play a major role in BSCB disruption, edema development and consequential tissue damage seen in acute traumatic SCI. Rather it is likely that the severe primary insult and subsequent hemorrhage may be the key contributing factors to ongoing SCI injury.
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Affiliation(s)
- Anna Victoria Leonard
- School of Medical Sciences, University of Adelaide, Adelaide, South Australia, Australia
- * E-mail:
| | - Emma Thornton
- School of Medical Sciences, University of Adelaide, Adelaide, South Australia, Australia
| | - Robert Vink
- Division of Health Sciences, University of South Australia, Adelaide, South Australia, Australia
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Li L, Hatcher JT, Hoover DB, Gu H, Wurster RD, Cheng ZJ. Distribution and morphology of calcitonin gene-related peptide and substance P immunoreactive axons in the whole-mount atria of mice. Auton Neurosci 2014; 181:37-48. [PMID: 24433968 PMCID: PMC10506417 DOI: 10.1016/j.autneu.2013.12.010] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2013] [Revised: 11/17/2013] [Accepted: 12/17/2013] [Indexed: 11/30/2022]
Abstract
The murine model has been used to investigate the role of cardiac sensory axons in various disease states. However, the distribution and morphological structures of cardiac nociceptive axons in normal murine tissues have not yet been well characterized. In this study, whole-mount atria from FVB mice were processed with calcitonin gene-related peptide (CGRP) and substance P (SP) primary antibodies followed by secondary antibodies, and then examined using confocal microscopy. We found: 1) Large CGRP-IR axon bundles entered the atria with the major veins, and these large bundles bifurcated into small bundles and single axons that formed terminal end-nets and free endings in the epicardium. Varicose CGRP-IR axons had close contacts with muscle fibers, and some CGRP-IR axons formed varicosities around principle neurons (PNs) within intrinsic cardiac ganglia (ICGs). 2) SP-IR axons also were found in the same regions of the atria, attached to veins, and within cardiac ganglia. Similar to CGRP-IR axons, these SP-IR axons formed terminal end-nets and free endings in the atrial epicardium and myocardium. Within ICGs, SP-IR axons formed varicose endings around PNs. However, SP-IR nerve fibers were less abundant than CGRP-IR fibers in the atria. 3) None of the PNs were CGRP-IR or SP-IR. 4) CGRP-IR and SP-IR often colocalized in terminal varicosities around PNs. Collectively, our data document the distribution pattern and morphology of CGRP-IR and SP-IR axons and terminals in different regions of the atria. This knowledge provides useful information for CGRP-IR and SP-IR axons that can be referred to in future studies of pathological remodeling.
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Affiliation(s)
- Liang Li
- Biomolecular Science Center, Burnett School of Biomedical Sciences, College of Medicine, University of Central Florida, Orlando, FL 32816, United States
| | - Jeffrey T Hatcher
- Biomolecular Science Center, Burnett School of Biomedical Sciences, College of Medicine, University of Central Florida, Orlando, FL 32816, United States
| | - Donald B Hoover
- Department of Biomedical Sciences, Quillen College of Medicine, East Tennessee State University, Johnson City, TN 37614, United States
| | - He Gu
- Department of Anesthesia, University of Iowa Hospital and Clinics, Iowa City, IA 52242, United States
| | - Robert D Wurster
- Department of Physiology, Loyola University, Stritch School of Medicine, Maywood, IL 60153, United States
| | - Zixi Jack Cheng
- Biomolecular Science Center, Burnett School of Biomedical Sciences, College of Medicine, University of Central Florida, Orlando, FL 32816, United States.
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Thornton E, Hassall MM, Corrigan F, Vink R. The NK1 receptor antagonist N-acetyl-L-tryptophan reduces dyskinesia in a hemi-parkinsonian rodent model. Parkinsonism Relat Disord 2014; 20:508-13. [PMID: 24637127 DOI: 10.1016/j.parkreldis.2014.02.008] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/03/2013] [Revised: 01/07/2014] [Accepted: 02/08/2014] [Indexed: 01/06/2023]
Abstract
BACKGROUND Dyskinesia or abnormal involuntary movements (AIMs) are a disabling effect of chronic L-DOPA administration and consequent pulsatile stimulation of dopamine receptors. This abnormal activation causes maladaptive changes including upregulation of FosB expression in dynorphin containing striatal cells. Substance P (SP) is co-localized within dynorphin positive cells and is increased within the substantia nigra by L-DOPA (L-3,4-dihydroxyphenylalanine) treatment. Accordingly, we determined if treatment with a SP NK1 receptor antagonist reduced the onset of L-DOPA induced dyskinesia (LID) in the hemi-parkinsonian rodent model. METHODS Adult male Sprague-Dawley rats underwent unilateral 6-OHDA (6-hydroxydopamine-hydrobromide) lesions of the medial forebrain bundle. At day 21, daily administration commenced of either L-DOPA (6 mg/kg plus 15 mg/kg of benseraside), L-DOPA with the NK1 antagonist N-acetyl-L-tryptophan (NAT) or equal volume of saline. Animals were tested with the rodent AIM scale assessing axial, contralateral forelimb and orolingual AIMs. Assessment of L-DOPA induced turning was undertaken, and motor function determined using the accelerating rotarod and adjusting step test. Dopaminergic neuronal counts and immunoreactivity for SP and FosB were undertaken. RESULTS All animals treated with L-DOPA alone developed dyskinesia, whereas combined administration of NAT with L-DOPA significantly reduced onset of AIMs and prevented mild to moderate dyskinesia. In non-dyskinetic NAT treated animals, similar numbers of FosB+ striatal cells were recorded as in saline treated animals. Importantly NAT treatment did not interfere with the anti-parkinsonian effect of L-DOPA. CONCLUSION Daily administration of a SP NK1 receptor antagonist may represent a novel treatment regime that reduces the onset of LID whilst conserving motor function.
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Affiliation(s)
- Emma Thornton
- The Adelaide Centre for Neuroscience Research, School of Medical Sciences, The University of Adelaide, South Australia, Australia.
| | - Mark Macquarie Hassall
- The Adelaide Centre for Neuroscience Research, School of Medical Sciences, The University of Adelaide, South Australia, Australia
| | - Frances Corrigan
- The Adelaide Centre for Neuroscience Research, School of Medical Sciences, The University of Adelaide, South Australia, Australia
| | - Robert Vink
- The Adelaide Centre for Neuroscience Research, School of Medical Sciences, The University of Adelaide, South Australia, Australia
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Bradykinin B₂ receptors increase hippocampal excitability and susceptibility to seizures in mice. Neuroscience 2013; 248:392-402. [PMID: 23811399 DOI: 10.1016/j.neuroscience.2013.06.038] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2013] [Revised: 06/17/2013] [Accepted: 06/18/2013] [Indexed: 12/23/2022]
Abstract
Bradykinin (BK) and its receptors (B1 and B2) may exert a role in the pathophysiology of certain CNS diseases, including epilepsy. In healthy tissues, B2 receptors are constitutively and widely expressed and B1 receptors are absent or expressed at very low levels, but both receptors, particularly B1, are up-regulated under many pathological conditions. Available data support the notion that up-regulation of B1 receptors in brain areas like the amygdala, hippocampus and entorhinal cortex favors the development and maintenance of an epileptic condition. The role of B2 receptors, instead, is still unclear. In this study, we used two different models to investigate the susceptibility to seizures of B1 knockout (KO) and B2 KO mice. We found that B1 KO are more susceptible to seizures compared with wild-type (WT) mice, and that this may depend on B2 receptors, in that (i) B2 receptors are overexpressed in limbic areas of B1 KO mice, including the hippocampus and the piriform cortex; (ii) hippocampal slices prepared from B1 KO mice are more excitable than those prepared from WT controls, and this phenomenon is B2 receptor-dependent, being abolished by B2 antagonists; (iii) kainate seizure severity is attenuated by pretreatment with a non-peptide B2 antagonist in WT and (more effectively) in B1 KO mice. These data highlight the possibility that B2 receptors may have a role in the responsiveness to epileptogenic insults and/or in the early period of epileptogenesis, that is, in the onset of the molecular and cellular events that lead to the transformation of a normal brain into an epileptic one.
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Blocking neurogenic inflammation for the treatment of acute disorders of the central nervous system. Int J Inflam 2013; 2013:578480. [PMID: 23819099 PMCID: PMC3681302 DOI: 10.1155/2013/578480] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2013] [Accepted: 05/08/2013] [Indexed: 01/11/2023] Open
Abstract
Classical inflammation is a well-characterized secondary response to many acute disorders of the central nervous system. However, in recent years, the role of neurogenic inflammation in the pathogenesis of neurological diseases has gained increasing attention, with a particular focus on its effects on modulation of the blood-brain barrier BBB. The neuropeptide substance P has been shown to increase blood-brain barrier permeability following acute injury to the brain and is associated with marked cerebral edema. Its release has also been shown to modulate classical inflammation. Accordingly, blocking substance P NK1 receptors may provide a novel alternative treatment to ameliorate the deleterious effects of neurogenic inflammation in the central nervous system. The purpose of this paper is to provide an overview of the role of substance P and neurogenic inflammation in acute injury to the central nervous system following traumatic brain injury, spinal cord injury, stroke, and meningitis.
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Lamoureux L, Simon SLR, Plews M, Ruddat V, Brunet S, Graham C, Czub S, Knox JD. Urine proteins identified by two-dimensional differential gel electrophoresis facilitate the differential diagnoses of scrapie. PLoS One 2013; 8:e64044. [PMID: 23704971 PMCID: PMC3660319 DOI: 10.1371/journal.pone.0064044] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2012] [Accepted: 04/11/2013] [Indexed: 01/23/2023] Open
Abstract
The difficulty in developing a diagnostic assay for Creutzfeldt - Jakob disease (CJD) and other transmissible spongiform encephalopathies (TSEs) stems in part from the fact that the infectious agent is an aberrantly folded form of an endogenous cellular protein. This precludes the use of the powerful gene based technologies currently applied to the direct detection of other infectious agents. To circumvent this problem our research objective has been to identify a set of proteins exhibiting characteristic differential abundance in response to TSE infection. The objective of the present study was to assess the disease specificity of differentially abundant urine proteins able to identify scrapie infected mice. Two-dimensional differential gel electrophoresis was used to analyze longitudinal collections of urine samples from both prion-infected mice and a transgenic mouse model of Alzheimer's disease. The introduction of fluorescent dyes, that allow multiple samples to be co-resolved and visualized on one two dimensional gel, have increased the accuracy of this methodology for the discovery of robust protein biomarkers for disease. The accuracy of a small panel of differentially abundant proteins to correctly classify an independent naïve sample set was determined. The results demonstrated that at the time of clinical presentation the differential abundance of urine proteins were capable of identifying the prion infected mice with 87% sensitivity and 93% specificity. The identity of the diagnostic differentially abundant proteins was investigated by mass spectrometry.
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Affiliation(s)
- Lise Lamoureux
- Prion Laboratory Services Section, Public Health Agency of Canada, Winnipeg, Manitoba, Canada
| | - Sharon L. R. Simon
- Prion Laboratory Services Section, Public Health Agency of Canada, Winnipeg, Manitoba, Canada
| | - Margot Plews
- Prion Laboratory Services Section, Public Health Agency of Canada, Winnipeg, Manitoba, Canada
| | - Viola Ruddat
- GE Healthcare, San Francisco, California, United States of America
| | - Simone Brunet
- Prion Laboratory Services Section, Public Health Agency of Canada, Winnipeg, Manitoba, Canada
| | - Catherine Graham
- National Centres for Animal Disease, Canadian Food Inspection Agency, Lethbridge, Alberta, Canada
| | - Stefanie Czub
- National Centres for Animal Disease, Canadian Food Inspection Agency, Lethbridge, Alberta, Canada
| | - J. David Knox
- Prion Laboratory Services Section, Public Health Agency of Canada, Winnipeg, Manitoba, Canada
- Department of Medical Microbiology, University of Manitoba, Winnipeg, Manitoba, Canada
- * E-mail:
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Squier W, Mack J, Green A, Aziz T. The pathophysiology of brain swelling associated with subdural hemorrhage: the role of the trigeminovascular system. Childs Nerv Syst 2012; 28:2005-15. [PMID: 22885686 DOI: 10.1007/s00381-012-1870-1] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/22/2012] [Accepted: 07/18/2012] [Indexed: 11/28/2022]
Abstract
INTRODUCTION This paper reviews the evidence in support of the hypothesis that the trigeminal system mediates brain swelling associated with subdural bleeding. The trigeminovascular system has been extensively studied in migraine; it may play an important but under-recognized role in the response to head trauma. Nerve fibers originating in trigeminal ganglion cells are the primary sensors of head trauma and, through their collateral innervation of the intracranial and dural blood vessels, are capable of inciting a cascade of vascular responses and brain swelling. The extensive trigeminal representation in the brainstem initiates and augments autonomic responses. Blood and tissue injury in the dura incite neurogenic inflammatory responses capable of sensitizing dural nerves and potentiating the response to trauma. DISCUSSION The trigeminal system may provide the anatomo-physiological link between small-volume, thin subdural bleeds and swelling of the underlying brain. This physiology may help to explain the poorly understood phenomena of "second-impact syndrome," the infant response to subdural bleeding (the "big black brain"), as well as post-traumatic subdural effusions. Considerable age-specific differences in the density of dural innervation exist; age-specific responses of this innervation may explain differences in the brain's response to trauma in the young. An understanding of this pathophysiology is crucial to the development of intervention and treatment of these conditions. Antagonists to specific neuropeptides of the trigeminal system modify brain swelling after trauma and should be further explored as potential therapy in brain trauma and subdural bleeding.
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Affiliation(s)
- Waney Squier
- Neuropathology, John Radcliffe Hospital, Oxford, UK.
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Charignon D, Späth P, Martin L, Drouet C. Icatibant , the bradykinin B2 receptor antagonist with target to the interconnected kinin systems. Expert Opin Pharmacother 2012; 13:2233-47. [PMID: 22970904 DOI: 10.1517/14656566.2012.723692] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
INTRODUCTION HOE-140/ Icatibant is a selective, competitive antagonist to bradykinin (BK) against its binding to the kinin B2 receptor. Substitution of five non-proteogeneic amino acid analogues makes icatibant resistant to degradation by metalloproteases of kinin catabolism. Icatibant has clinical applications in inflammatory and vascular leakage conditions caused by an acute (non-controlled) production of kinins and their accumulation at the endothelium B2 receptor. The clinical manifestation of vascular leakage, called angioedema (AE), is characterized by edematous attacks of subcutaneous and submucosal tissues, which can cause painful intestinal consequences, and life-threatening complications if affecting the larynx. Icatibant is registered for the treatment of acute attacks of the hereditary BK-mediated AE, i.e., AE due to C1 inhibitor deficiency. AREAS COVERED This review discusses emerging knowledge on the kinin system: kinin pharmacological properties, biochemical characteristics of the contact phase and kinin catabolism proteases. It underlines the responsibility of the kinins in AE initiation and the potency of icatibant to inhibit AE formation by kinin-receptor interactions. EXPERT OPINION Icatibant antagonist properties protect BK-mediated AE patients against severe attacks, and could be developed for use in inflammatory conditions. More studies are required to confirm whether or not prolonged and frequent applications of icatibant could result in the impairment of the cardioprotective effect of BK.
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Affiliation(s)
- Delphine Charignon
- Université Joseph Fourier Grenoble 1, GREPI/AGIM CNRS-UJF FRE 3405 and Centre de Référence des Angioedèmes CREAK, CHU Grenoble POBox 217, F-38043 Grenoble, France
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Davidson JR, Mack J, Gutnikova A, Varatharaj A, Darby S, Squier W. Developmental changes in human dural innervation. Childs Nerv Syst 2012; 28:665-71. [PMID: 22395537 DOI: 10.1007/s00381-012-1727-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/22/2011] [Accepted: 02/13/2012] [Indexed: 11/29/2022]
Abstract
INTRODUCTION There is limited published work on the abundant innervation of the human dura mater, its role and responses to injury in humans. The dura not only provides mechanical support for the brain but may also have other functions, including control of the outflow of venous blood from the brain via the dural sinuses. The trigeminal nerve supplies sensory fibres to the dura as well as the leptomeninges, intracranial blood vessels, face, nose and mouth. Its relatively large size in embryonic life suggests an importance in development; the earliest fetal reflexes, mediated by the trigeminal, are seen by 8 weeks. Trigeminal functions vital to the fetus include the coordination of sucking and swallowing and the protective oxygen-conserving reflexes. Like other parts of the nervous system, the trigeminal undergoes pruning and remodelling throughout development. METHODS We have investigated changes in the innervation of the human dura with age in 27 individuals aged between 31 weeks of gestation and 60 years of postnatal life. Using immunocytochemistry with antibodies to neurofilament, we have found significant changes in the density of dural innervation with age RESULTS The density of innervation increased between 31 and 40 weeks of gestation, peaking at term and decreasing in the subsequent 3 months, remaining low until the sixth decade. CONCLUSIONS Our observations are consistent with animal studies but are, to our knowledge, the first to show age-related changes in the density of innervation in the human dura. They provide new insights into the functions of the human dura during development.
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Affiliation(s)
- J R Davidson
- Department of Neuropathology, John Radcliffe Hospital, Oxford, UK
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Kan L, Lounev VY, Pignolo RJ, Duan L, Liu Y, Stock SR, McGuire TL, Lu B, Gerard NP, Shore EM, Kaplan FS, Kessler JA. Substance P signaling mediates BMP-dependent heterotopic ossification. J Cell Biochem 2012; 112:2759-72. [PMID: 21748788 DOI: 10.1002/jcb.23259] [Citation(s) in RCA: 87] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Heterotopic ossification (HO) is a disabling condition associated with neurologic injury, inflammation, and overactive bone morphogenetic protein (BMP) signaling. The inductive factors involved in lesion formation are unknown. We found that the expression of the neuro-inflammatory factor Substance P (SP) is dramatically increased in early lesional tissue in patients who have either fibrodysplasia ossificans progressiva (FOP) or acquired HO, and in three independent mouse models of HO. In Nse-BMP4, a mouse model of HO, robust HO forms in response to tissue injury; however, null mutations of the preprotachykinin (PPT) gene encoding SP prevent HO. Importantly, ablation of SP(+) sensory neurons, treatment with an antagonist of SP receptor NK1r, deletion of NK1r gene, or genetic down-regulation of NK1r-expressing mast cells also profoundly inhibit injury-induced HO. These observations establish a potent neuro-inflammatory induction and amplification circuit for BMP-dependent HO lesion formation, and identify novel molecular targets for prevention of HO.
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Affiliation(s)
- Lixin Kan
- Department of Neurology, Northwestern University Feinberg Medical School, Chicago, Illinois 60611, USA.
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Squier W. The "Shaken Baby" syndrome: pathology and mechanisms. Acta Neuropathol 2011; 122:519-42. [PMID: 21947257 DOI: 10.1007/s00401-011-0875-2] [Citation(s) in RCA: 66] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2011] [Revised: 09/09/2011] [Accepted: 09/11/2011] [Indexed: 01/01/2023]
Abstract
The "Shaken Baby" syndrome (SBS) is the subject of intense controversy; the diagnosis has in the past depended on the triad of subdural haemorrhage (SDH), retinal haemorrhage and encephalopathy. While there is no doubt that infants do suffer abusive injury at the hands of their carers and that impact can cause catastrophic intracranial damage, research has repeatedly undermined the hypothesis that shaking per se can cause this triad. The term non-accidental head injury has therefore been widely adopted. This review will focus on the pathology and mechanisms of the three physiologically associated findings which constitute the "triad" and are seen in infants suffering from a wide range of non-traumatic as well as traumatic conditions. "Sub" dural bleeding in fact originates within the deep layers of the dura. The potential sources of SDH include: the bridging veins, small vessels within the dura itself, a granulating haemorrhagic membrane and ruptured intracranial aneurysm. Most neuropathologists do not routinely examine eyes, but the significance of this second arm of the triad in the diagnosis of Shaken Baby syndrome is such that it merits consideration in the context of this review. While retinal haemorrhage can be seen clinically, dural and subarachnoid optic nerve sheath haemorrhage is usually seen exclusively by the pathologist and only rarely described by the neuroradiologist. The term encephalopathy is used loosely in the context of SBS. It may encompass anything from vomiting, irritability, feeding difficulties or floppiness to seizures, apnoea and fulminant brain swelling. The spectrum of brain pathology associated with retinal and subdural bleeding from a variety of causes is described. The most important cerebral pathology is swelling and hypoxic-ischaemic injury. Mechanical shearing injury is rare and contusions, the hallmark of adult traumatic brain damage, are vanishingly rare in infants under 1 year of age. Clefts and haemorrhages in the immediate subcortical white matter have been assumed to be due to trauma but factors specific to this age group offer other explanations. Finally, examples of the most common causes of the triad encountered in clinical diagnostic and forensic practice are briefly annotated.
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Affiliation(s)
- Waney Squier
- Department of Neuropathology, West Wing, John Radcliffe Hospital, Oxford, UK.
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