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Sharif A, Mamo J, Lam V, Al-Salami H, Mooranian A, Watts GF, Clarnette R, Luna G, Takechi R. The therapeutic potential of probucol and probucol analogues in neurodegenerative diseases. Transl Neurodegener 2024; 13:6. [PMID: 38247000 PMCID: PMC10802046 DOI: 10.1186/s40035-024-00398-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2023] [Accepted: 01/07/2024] [Indexed: 01/23/2024] Open
Abstract
Neurodegenerative disorders present complex pathologies characterized by various interconnected factors, including the aggregation of misfolded proteins, oxidative stress, neuroinflammation and compromised blood-brain barrier (BBB) integrity. Addressing such multifaceted pathways necessitates the development of multi-target therapeutic strategies. Emerging research indicates that probucol, a historic lipid-lowering medication, offers substantial potential in the realm of neurodegenerative disease prevention and treatment. Preclinical investigations have unveiled multifaceted cellular effects of probucol, showcasing its remarkable antioxidative and anti-inflammatory properties, its ability to fortify the BBB and its direct influence on neural preservation and adaptability. These diverse effects collectively translate into enhancements in both motor and cognitive functions. This review provides a comprehensive overview of recent findings highlighting the efficacy of probucol and probucol-related compounds in the context of various neurodegenerative conditions, including Alzheimer's disease, Parkinson's disease, Huntington's disease, and cognitive impairment associated with diabetes.
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Affiliation(s)
- Arazu Sharif
- Curtin Health Innovation Research Institute, Faculty of Health Sciences, Curtin University, Perth, WA, Australia
- Curtin Medical School, Faculty of Health Sciences, Curtin University, Perth, WA, Australia
| | - John Mamo
- Curtin Health Innovation Research Institute, Faculty of Health Sciences, Curtin University, Perth, WA, Australia
- Perron Institute for Neurological and Translational Research, Perth, WA, Australia
| | - Virginie Lam
- Curtin Health Innovation Research Institute, Faculty of Health Sciences, Curtin University, Perth, WA, Australia
- School of Public Health, Faculty of Health Sciences, Curtin University, Perth, WA, Australia
| | - Hani Al-Salami
- Curtin Health Innovation Research Institute, Faculty of Health Sciences, Curtin University, Perth, WA, Australia
- Curtin Medical School, Faculty of Health Sciences, Curtin University, Perth, WA, Australia
| | - Armin Mooranian
- Curtin Health Innovation Research Institute, Faculty of Health Sciences, Curtin University, Perth, WA, Australia
- Curtin Medical School, Faculty of Health Sciences, Curtin University, Perth, WA, Australia
| | - Gerald F Watts
- School of Medicine, Faculty of Health and Medical Sciences, University of Western Australia, Perth, WA, Australia
| | - Roger Clarnette
- School of Medicine, Faculty of Health and Medical Sciences, University of Western Australia, Perth, WA, Australia
| | - Giuseppe Luna
- Curtin Medical School, Faculty of Health Sciences, Curtin University, Perth, WA, Australia
| | - Ryu Takechi
- Curtin Health Innovation Research Institute, Faculty of Health Sciences, Curtin University, Perth, WA, Australia.
- School of Public Health, Faculty of Health Sciences, Curtin University, Perth, WA, Australia.
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da Silva EB, Eichwald T, Glaser V, Varela KG, Baptistella AR, de Carvalho D, Remor AP. Protective Effects of Probucol on Different Brain Cells Exposed to Manganese. Neurotox Res 2022; 40:276-285. [PMID: 35043377 DOI: 10.1007/s12640-021-00458-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Revised: 11/11/2021] [Accepted: 12/03/2021] [Indexed: 10/19/2022]
Abstract
Manganese (Mn) is an essential metal for many functions in the body. However, in excess, it can be neurotoxic and cause a Parkinson-like syndrome, known as manganism. Here, we aimed to identify a protective effect of probucol, a lipid-lowering agent with anti-inflammatory and antioxidant properties, against Mn-induced toxicity in human neuroblastoma (SH-SY5Y) and glioblastoma (C6) cell lines. The cells were incubated with increasing concentrations of Mn followed by probucol addition 1, 3, 6, and/or 24 h to assess the metal toxic doses and measure the protective effect of probucol against Mn-induced oxidative damage. Longer exposition to Mn showed decreased SH-SY5Y cellular viability in concentrations higher than 100 µM, and probucol was able to prevent this effect. The C6 cells were more sensitive to the Mn deleterious actions, decreasing the cell viability after 6 h of 500 µM Mn exposure. In addition, probucol prevents the complex I and II of the mitochondrial respiratory chain (MRC) inhibition caused by Mn and decreased the intracellular ROS production. Taken together, our results showed that Mn toxicity affects differently both cell lines and probucol has a protective effect against the oxidative imbalance in the central nervous system.
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Affiliation(s)
- Erica Blenda da Silva
- Graduada em Medicina, Área de Ciências da Vida e Saúde, Universidade do Oeste de Santa Catarina (UNOESC), Campus de Joaçaba, SC, 89600-000, Joaçaba, Brazil
| | - Tuany Eichwald
- Programa de Pós-Graduação em Biociências e Saúde (PPGBS), Área de Ciências da Vida e Saúde, Universidade do Oeste de Santa Catarina (UNOESC), Campus de Joaçaba, SC, 89600-000, Joaçaba, Brazil
| | - Viviane Glaser
- Centro de Ciências Rurais, Coordenadoria Especial de Ciências Biológicas e Agronômicas, Universidade Federal de Santa Catarina (UFSC), Campus de Curitibanos, SC, Curitibanos, Brazil
| | - Karina Giacomini Varela
- Graduada em Ciências Biológicas, Universidade do Oeste de Santa Catarina (UNOESC), Campus de Joaçaba, Biotério, 89600-000, Joaçaba, Brazil
| | - Antuani Rafael Baptistella
- Programa de Pós-Graduação em Biociências e Saúde (PPGBS), Área de Ciências da Vida e Saúde, Universidade do Oeste de Santa Catarina (UNOESC), Campus de Joaçaba, SC, 89600-000, Joaçaba, Brazil
| | - Diego de Carvalho
- Programa de Pós-Graduação em Biociências e Saúde (PPGBS), Área de Ciências da Vida e Saúde, Universidade do Oeste de Santa Catarina (UNOESC), Campus de Joaçaba, SC, 89600-000, Joaçaba, Brazil
| | - Aline Pertile Remor
- Programa de Pós-Graduação em Biociências e Saúde (PPGBS), Área de Ciências da Vida e Saúde, Universidade do Oeste de Santa Catarina (UNOESC), Campus de Joaçaba, SC, 89600-000, Joaçaba, Brazil.
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Liu T, Wang X, Guo F, Sun X, Yuan K, Wang Q, Lan C. Lysophosphatidylcholine induces apoptosis and inflammatory damage in brain microvascular endothelial cells via GPR4-mediated NLRP3 inflammasome activation. Toxicol In Vitro 2021; 77:105227. [PMID: 34293432 DOI: 10.1016/j.tiv.2021.105227] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2021] [Revised: 06/25/2021] [Accepted: 07/15/2021] [Indexed: 01/14/2023]
Abstract
Lysophosphatidylcholine (LPC), as the main active component of oxidized low-density lipoproteins (ox-LDLs), has significant effects in cerebrovascular disease. However, the complex mechanism by which LPC functions in brain microvascular endothelial cells (BMECs) is not clearly understood. In this study, BMECs were transfected with G protein-coupled receptor 4 (GPR4) siRNA or an NLRP3-overexpression plasmid, and GPR4 expression was identified by RT-qPCR and western blotting; IL-1β, IL-18, and IL-33 levels were evaluated by ELISA. Apoptosis was monitored by flow cytometry and Hoechst staining, while Caspase 3, ASC, NLRP3, and GPR4 protein expression were examined by western blotting. Our results showed that LPC significantly increased the levels of inflammatory cytokines (IL-1β, IL-18, and IL-33) and markedly induced apoptosis and NLRP3 inflammasome activation in BMECs. Moreover, LPC notably upregulated GPR4 in BMECs, and knockdown of GPR4 significantly attenuated the effects of LPC in BMECs. Above all, we also proved that LPC induced apoptosis and inflammatory injury in BMECs by causing GPR4 to activate NLRP3 inflammasomes. Therefore, GPR4-mediated activation of NLRP3 inflammasomes might be the underlying mechanism by which LPC promotes the progression of cerebrovascular disease. In summary we found that LPC is an important pathogenic factor in cerebrovascular disease, and can induce GPR4 to active NLRP3 inflammasomes.
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Affiliation(s)
- Tao Liu
- Department of Neurology, University of Chinese Academy of Sciences Shenzhen Hospital (Guang ming), No. 39 Huaxia Road, Guangming District, Shenzhen 518107, China
| | - Xuegang Wang
- Department of Hepatology, The People's Hospital of Bao an, No. 118, Longjing Second Road, Baoan District, Shenzhen 518107, China
| | - Feng Guo
- Department of Neurology, University of Chinese Academy of Sciences Shenzhen Hospital (Guang ming), No. 39 Huaxia Road, Guangming District, Shenzhen 518107, China
| | - Xiaobo Sun
- Department of Laboratory Diagnostics, Changhai Hospital, No. 168 Changhai Road, Yangpu District, Shanghai 200433, China
| | - Kunxiong Yuan
- Department of Neurology, University of Chinese Academy of Sciences Shenzhen Hospital (Guang ming), No. 39 Huaxia Road, Guangming District, Shenzhen 518107, China
| | - Qingyong Wang
- Department of Neurology, University of Chinese Academy of Sciences Shenzhen Hospital (Guang ming), No. 39 Huaxia Road, Guangming District, Shenzhen 518107, China
| | - Chunwei Lan
- Department of Neurology, University of Chinese Academy of Sciences Shenzhen Hospital (Guang ming), No. 39 Huaxia Road, Guangming District, Shenzhen 518107, China.
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Taghavizadeh Yazdi ME, Amiri MS, Nourbakhsh F, Rahnama M, Forouzanfar F, Mousavi SH. Bio-indicators in cadmium toxicity: Role of HSP27 and HSP70. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:26359-26379. [PMID: 33834331 DOI: 10.1007/s11356-021-13687-y] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Accepted: 03/24/2021] [Indexed: 06/12/2023]
Abstract
Heat shock proteins (HSPs) are a family of proteins that are expressed by cells in reply to stressors. The changes in concentration of HSPs could be utilized as a bio-indicator of oxidative stress caused by heavy metal. Exposure to the different heavy metals may induce or reduce the expression of different HSPs. The exposure to cadmium ion (Cd2+) could increase HSP70 and HSP27 over 2- to 10-fold or even more. The in vitro and in vivo models indicate that the HSP70 family is more sensitive to Cd intoxication than other HSPs. The analyses of other HSPs along with HSP70, especially HSP27, could also be useful to obtain more accurate results. In this regard, this review focuses on examining the literature to bold the futuristic uses of HSPs as bio-indicators in the initial assessment of Cd exposure risks in defined environments.
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Affiliation(s)
| | | | - Fahimeh Nourbakhsh
- Medical Toxicology Research Center, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mostafa Rahnama
- Department of Plant Pathology, University of Kentucky, Lexington, KY, 40506, USA
| | - Fatemeh Forouzanfar
- Neuroscience Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
- Department of Neuroscience, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Seyed Hadi Mousavi
- Medical Toxicology Research Center, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.
- Department of Pharmacology, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.
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Li Y, Zhao Q, Cao Y, Si J, Li J, Cao K, Pang X. Probucol decreases homocysteine-stimulated CRP production in rat aortic smooth muscle cells via regulating HO-1/NADPH oxidase/ROS/p38 pathway. Acta Biochim Biophys Sin (Shanghai) 2021; 53:212-219. [PMID: 33382068 DOI: 10.1093/abbs/gmaa163] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Indexed: 01/30/2023] Open
Abstract
The elevated homocysteine level is an independent risk factor for atherosclerosis, which is characterized as a chronic inflammatory disease associated with oxidative stress. We have confirmed that homocysteine can stimulate the production of C-reactive protein (CRP) in rat aortic smooth muscle cells (RASMCs). In the present study, we investigated the role of probucol in homocysteine-induced CRP expression in cultured RASMCs and high-methionine-diet-induced hyperhomocysteinemic rats. The results showed that probucol decreased homocysteine-induced CRP mRNA and protein expression in RASMCs in a concentration-dependent manner. In addition, the animal experiment showed that probucol not only inhibited CRP expression in the vessel wall but also reduced the circulating CRP level in hyperhomocysteinemic rats. Further investigations revealed that probucol markedly increased heme oxygenase-1 activity, suppressed nicotinamide adenine dinucleotide phosphate (NADPH) oxidase activity, diminished superoxide anion generation, and decreased p38 phosphorylation in RASMCs and hyperhomocysteinemic rat aorta. These data demonstrate that probucol can inhibit homocysteine-induced CRP generation by interfering with the NADPH oxidase/p38 signal pathway in RASMCs, which will provide new evidence for the anti-inflammatory and anti-atherosclerotic effects of probucol.
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Affiliation(s)
- Yuxia Li
- Department of Clinical Pharmacy, Zibo Central Hospital, Binzhou Medical University, Zibo 255000, China
- School of Pharmacy, Binzhou Medical University, Yantai 264003, China
| | - Qun Zhao
- Department of Clinical Pharmacy, Zibo Central Hospital, Binzhou Medical University, Zibo 255000, China
| | - Yuan Cao
- Department of Clinical Pharmacy, Zibo Central Hospital, Binzhou Medical University, Zibo 255000, China
| | - Jigang Si
- Department of Clinical Pharmacy, Zibo Central Hospital, Binzhou Medical University, Zibo 255000, China
| | - Jing Li
- Department of Clinical Pharmacy, Zibo Central Hospital, Binzhou Medical University, Zibo 255000, China
| | - Kai Cao
- Department of Clinical Pharmacy, Zibo Central Hospital, Binzhou Medical University, Zibo 255000, China
| | - Xiaoming Pang
- Department of Clinical Pharmacy, Zibo Central Hospital, Binzhou Medical University, Zibo 255000, China
- School of Pharmacy, Binzhou Medical University, Yantai 264003, China
- Translational Medical Center, Zibo Central Hospital, Binzhou Medical University, Zibo 255000, China
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González-Guevara E, Cárdenas G, Pérez-Severiano F, Martínez-Lazcano JC. Dysregulated Brain Cholesterol Metabolism Is Linked to Neuroinflammation in Huntington's Disease. Mov Disord 2020; 35:1113-1127. [PMID: 32410324 DOI: 10.1002/mds.28089] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Revised: 04/08/2020] [Accepted: 04/15/2020] [Indexed: 12/12/2022] Open
Abstract
Huntington's disease is an autosomal-dominant, neurodegenerative disorder caused by a CAG repeat expansion in exon-1 of the huntingtin gene. Alterations in cholesterol metabolism and distribution have been reported in Huntington's disease, including abnormal interactions between mutant huntingtin and sterol regulatory element-binding proteins, decreased levels of apolipoprotein E/cholesterol/low-density lipoprotein receptor complexes, and alterations in the synthesis of ATP-binding cassette transporter A1. Plasma levels of 24S-hydroxycholestrol, a key intermediary in cholesterol metabolism and a possible marker in neurodegenerative diseases, decreased proportionally to the degree of caudate nucleus atrophy. The interaction of mutant huntingtin with sterol regulatory element-binding proteins is of particular interest given that sterol regulatory element-binding proteins play a dual role: They take part in lipid and cholesterol metabolism, but also in the inflammatory response that induces immune cell migration as well as toxic effects, particularly in astrocytes. This work summarizes current evidence on the metabolic and immune implications of sterol regulatory element-binding protein dysregulation in Huntington's disease, highlighting the potential use of drugs that modulate these alterations. © 2020 International Parkinson and Movement Disorder Society.
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Affiliation(s)
- Edith González-Guevara
- Laboratorio de Neurofarmacología Molecular y Nanotecnología, Instituto Nacional de Neurología y Neurocirugía "MVS", Mexico City, Mexico
| | - Graciela Cárdenas
- Departamento de Neurología y Enfermedades Neuro-Infecciosas, Instituto Nacional de Neurología y Neurocirugía "MVS", Mexico City, Mexico
| | - Francisca Pérez-Severiano
- Laboratorio de Neurofarmacología Molecular y Nanotecnología, Instituto Nacional de Neurología y Neurocirugía "MVS", Mexico City, Mexico
| | - Juan Carlos Martínez-Lazcano
- Laboratorio de Neurofarmacología Molecular y Nanotecnología, Instituto Nacional de Neurología y Neurocirugía "MVS", Mexico City, Mexico
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Probucol Prevents Diabetes-Induced Retinal Neuronal Degeneration through Upregulating Nrf2. BIOMED RESEARCH INTERNATIONAL 2020; 2020:3862509. [PMID: 32149102 PMCID: PMC7042517 DOI: 10.1155/2020/3862509] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/18/2019] [Revised: 01/19/2020] [Accepted: 01/21/2020] [Indexed: 11/17/2022]
Abstract
Diabetic retinopathy (DR) is a sight-threatening complication of diabetes. This study investigated the therapeutic effect of probucol in a mouse model of diabetic retinopathy. C57BL/6 mice were rendered diabetic through Streptozotocin (STZ) intraperitoneal injection. Mice were treated with probucol (150 mg/kg, gavage administration) or vehicle (DMSO) for 12 weeks. Optical coherence tomography (OCT), fundus photography (FP), and fundus fluorescein angiography (FFA) were conducted to evaluate retinal structure and damage. Eyes were collected for histology, reactive oxygen species (ROS) assay, apoptotic cells count, and western blot. After STZ injection, all mice developed hyperglycemia. Compared with the retina of the control group, the retina of diabetic mice showed enhanced arterial reflex and beaded vein dilatation. Besides, reduced inner and middle retinal thickness and significantly fewer nuclei were found in diabetic retina. Moreover, the diabetic retina also presented increased ROS generation and more TUNEL-positive cells. Probucol treatment prevented diabetes-induced lesions. In addition, the treatment also upregulated Nrf2 expression in diabetic retina. It was suggested that probucol attenuated diabetes-induced retinal neuronal degeneration via upregulating the Nrf2 signaling pathway possibly. Probucol may be repurposed for DR management.
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BDNF-mediated mitophagy alleviates high-glucose-induced brain microvascular endothelial cell injury. Apoptosis 2019; 24:511-528. [DOI: 10.1007/s10495-019-01535-x] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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Gong P, Li M, Zou C, Tian Q, Xu Z. Tissue Plasminogen Activator Causes Brain Microvascular Endothelial Cell Injury After Oxygen Glucose Deprivation by Inhibiting Sonic Hedgehog Signaling. Neurochem Res 2018; 44:441-449. [PMID: 30552546 PMCID: PMC6394519 DOI: 10.1007/s11064-018-2697-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2018] [Revised: 11/22/2018] [Accepted: 12/10/2018] [Indexed: 11/29/2022]
Abstract
The thrombolytic activity of tissue plasminogen activator (tPA) has undisputed benefits. However, the documented neurotoxicity of tPA raises important issues. Currently, common treatments for stroke might not be optimum if exogenous tPA can pass through the blood–brain barrier and enter the brain, thus adding to the deleterious effects of tPA within the cerebral parenchyma. Here, we determined whether tPA could damage brain microvascular endothelial cells (BMECs) during cerebral ischemia. We showed that treatment of BMECs with tPA decreased trans-endothelial electrical resistance and cell proliferation, and blocked the cell cycle at the G0–G1 phase. In addition, the Sonic hedgehog (Shh) signaling pathway was involved in tPA-induced BMECs dysfunction. However, tPA-enhanced oxygen glucose deprivation-induced BMECs dysfunction was eliminated by Shh administration and the effects could be reversed by Shh inhibitors. Taken together, these results demonstrate that tPA administration might result in damage to the endothelial barrier owing to blocked Shh signaling pathway.
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Affiliation(s)
- Pian Gong
- Department of Neurosurgery, Renmin Hospital of Wuhan University, No. 9 Zhangzhidong Road, Wuchang District, Wuhan, 430072, Hubei Province, China
| | - Mingchang Li
- Department of Neurosurgery, Renmin Hospital of Wuhan University, No. 9 Zhangzhidong Road, Wuchang District, Wuhan, 430072, Hubei Province, China.
| | - Changlin Zou
- Department of Neurosurgery, Renmin Hospital of Wuhan University, No. 9 Zhangzhidong Road, Wuchang District, Wuhan, 430072, Hubei Province, China
| | - Qi Tian
- Department of Neurosurgery, Renmin Hospital of Wuhan University, No. 9 Zhangzhidong Road, Wuchang District, Wuhan, 430072, Hubei Province, China
| | - Zhou Xu
- Department of Neurosurgery, Renmin Hospital of Wuhan University, No. 9 Zhangzhidong Road, Wuchang District, Wuhan, 430072, Hubei Province, China
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Antidepressant Effects of Probucol on Early-Symptomatic YAC128 Transgenic Mice for Huntington's Disease. Neural Plast 2018; 2018:4056383. [PMID: 30186318 PMCID: PMC6112232 DOI: 10.1155/2018/4056383] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2018] [Revised: 06/28/2018] [Accepted: 07/26/2018] [Indexed: 11/17/2022] Open
Abstract
Huntington's disease (HD) is an autosomal dominant neurodegenerative disorder caused by a trinucleotide expansion in the HD gene, resulting in an extended polyglutamine tract in the protein huntingtin. HD is traditionally viewed as a movement disorder, but cognitive and neuropsychiatric symptoms also contribute to the clinical presentation. Depression is one of the most common psychiatric disturbances in HD, present even before manifestation of motor symptoms. Diagnosis and treatment of depression in HD-affected individuals are essential aspects of clinical management in this population, especially owing to the high risk of suicide. This study investigated whether chronic administration of the antioxidant probucol improved motor and affective symptoms as well as hippocampal neurogenic function in the YAC128 transgenic mouse model of HD during the early- to mild-symptomatic stages of disease progression. The motor performance and affective symptoms were monitored using well-validated behavioral tests in YAC128 mice and age-matched wild-type littermates at 2, 4, and 6 months of age, after 1, 3, or 5 months of treatment with probucol (30 mg/kg/day via water supplementation, starting on postnatal day 30). Endogenous markers were used to assess the effect of probucol on cell proliferation (Ki-67 and proliferation cell nuclear antigen (PCNA)) and neuronal differentiation (doublecortin (DCX)) in the hippocampal dentate gyrus (DG). Chronic treatment with probucol reduced the occurrence of depressive-like behaviors in early- and mild-symptomatic YAC128 mice. Functional improvements were not accompanied by increased progenitor cell proliferation and neuronal differentiation. Our findings provide evidence that administration of probucol may be of clinical benefit in the management of early- to mild-symptomatic HD.
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Marie C, Pedard M, Quirié A, Tessier A, Garnier P, Totoson P, Demougeot C. Brain-derived neurotrophic factor secreted by the cerebral endothelium: A new actor of brain function? J Cereb Blood Flow Metab 2018; 38:935-949. [PMID: 29557702 PMCID: PMC5998997 DOI: 10.1177/0271678x18766772] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Low cerebral levels of brain-derived neurotrophic factor (BDNF), which plays a critical role in many brain functions, have been implicated in neurodegenerative, neurological and psychiatric diseases. Thus, increasing BDNF levels in the brain is considered an attractive possibility for the prevention/treatment of various brain diseases. To date, BDNF-based therapies have largely focused on neurons. However, given the cross-talk between endothelial cells and neurons and recent evidence that BDNF expressed by the cerebral endothelium largely accounts for BDNF levels present in the brain, it is likely that BDNF-based therapies would be most effective if they also targeted the cerebral endothelium. In this review, we summarize the available knowledge about the biology and actions of BDNF derived from endothelial cells of the cerebral microvasculature and we emphasize the remaining gaps and shortcomings.
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Affiliation(s)
- Christine Marie
- 1 INSERM U1093, Univ. Bourgogne Franche-Comté, Dijon, France
| | - Martin Pedard
- 1 INSERM U1093, Univ. Bourgogne Franche-Comté, Dijon, France.,2 Service de Neurologie, CHRU, Dijon, France
| | - Aurore Quirié
- 1 INSERM U1093, Univ. Bourgogne Franche-Comté, Dijon, France
| | - Anne Tessier
- 1 INSERM U1093, Univ. Bourgogne Franche-Comté, Dijon, France
| | | | - Perle Totoson
- 3 EA4267 PEPITE, FHU INCREASE, Univ. Bourgogne Franche-Comté, Besançon, France
| | - Céline Demougeot
- 3 EA4267 PEPITE, FHU INCREASE, Univ. Bourgogne Franche-Comté, Besançon, France
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Liu H, Cai M. Effect of probucol on hemodynamics, rheology and blood lipid of diabetic retinopathy. Exp Ther Med 2018; 15:3809-3814. [PMID: 29581738 PMCID: PMC5863571 DOI: 10.3892/etm.2018.5917] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2017] [Accepted: 01/22/2018] [Indexed: 12/30/2022] Open
Abstract
The effect of probucol in the treatment of diabetic retinopathy was investigated to analyze its impact on its hemodynamics, rheology and blood lipid. A total of 80 patients with diabetic retinopathy who were treated in the Ninth People's Hospital of Chongqing (Chongqing, China) from January 2015 to August 2016 were selected and divided into two groups by random number table, with 40 patients in each group. Control group was treated by conventional and intensive glycemic control and antihypertensive therapy, while observation group was orally administered with 0.375 g probucol twice a day on the basis of intensive therapy. Outpatient follow-up was performed to all the patients for 6 months, then, among the blood rheology, the changes in blood viscosity and erythrocyte aggregation indexes at different time points before and after intervention in the two groups were compared, mean blood flow velocities in renal artery, renal artery pulse indexes and renal artery resistance indexes at different time points were recorded, changes in blood lipid of the two groups before and after intervention were compared, and complication rates during the treatment were calculated. After intervention, the whole blood viscosity at high shear rate, whole blood viscosity at low shear rate and plasma viscosity in observation group were lower than those before intervention and lower than those in control group after intervention (P<0.05); The erythrocyte aggregation indexes in observation group were obviously increased compared with those in control group at 1 week, 1 month and 6 months after intervention (P<0.05). The mean blood flow velocities in renal artery in observation group were remarkably higher than those in control group at 1 week, 1 month and 6 months after intervention (P<0.05), while the renal artery pulse indexes and resistance indexes in observation group were lower than those in control group in the same period (P<0.05). In observation group, the levels of total cholesterol (TC), triglyeride (TG) and low density lipoprotein cholesterol (LDL-C) after intervention were decreased compared with those before intervention, while the level of high-density lipoprotein cholesterol (HDL-C) was increased. The levels of TC, TG and LDL-C in observation group were lower than those in control group after intervention, while the HDL-C level was higher (P<0.05). During the treatment, the total incidence of phlebitis, chills, fever, rash and maculopapule in observation group was obviously lower than that in control group. Probucol can significantly improve the hemodynamic and rheological indexes and lower blood lipid in the body, and is an effective medicine for diabetic retinopathy.
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Affiliation(s)
- Hong Liu
- Department of Ophthalmology, The Ninth People's Hospital of Chongqing, Chongqing 400700, P.R. China
| | - Mingming Cai
- Department of Ophthalmology, The Ninth People's Hospital of Chongqing, Chongqing 400700, P.R. China
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Pedard M, Quirié A, Garnier P, Tessier A, Demougeot C, Marie C. The Cerebral Brain-Derived Neurotrophic Factor Pathway, Either Neuronal or Endothelial, Is Impaired in Rats with Adjuvant-Induced Arthritis. Connection with Endothelial Dysfunction. Front Physiol 2018; 8:1125. [PMID: 29375397 PMCID: PMC5767301 DOI: 10.3389/fphys.2017.01125] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2017] [Accepted: 12/20/2017] [Indexed: 01/16/2023] Open
Abstract
Cognitive abilities are largely dependent on activation of cerebral tropomyosin-related kinase B receptors (TrkB) by brain-derived neurotrophic factor (BDNF) that is secreted under a bioactive form by both neurons and endothelial cells. In addition, there is mounting evidence for a link between endothelial function and cognition even though the underlying mechanisms are not well known. Therefore, we investigated the cerebral BDNF pathway, either neuronal or endothelial, in rheumatoid arthritis (RA) that combines both endothelial dysfunction (ED) and impaired cognition. Adjuvant-induced arthritis (AIA) in rats was used as a model of RA. Clinical inflammatory symptoms were evaluated from an arthritis score and brains were collected at day 31 ± 2 post-immunization. Neuronal expression of BDNF and TrkB phosphorylated at tyrosine 816 (p-TrkB) was examined in brain slices. Endothelial BDNF and p-TrkB expression was examined on both brain slices (hippocampal arterioles) and isolated cerebral microvessels-enriched fractions (vessels downstream to arterioles). The connection between endothelial nitric oxide (NO) and BDNF production was explored on the cerebrovascular fractions using endothelial NO synthase (eNOS) levels as a marker of NO production, Nω-Nitro-L-arginine methyl ester hydrochloride (L-NAME) as a NOS inhibitor and glyceryl-trinitrate as a slow releasing NO donor. Brain slices displayed lower BDNF and p-TrkB staining in both neurons and arteriolar endothelial cells in AIA than in control rats. For endothelial cells but not neurons, a strong correlation was observed between BDNF and p-TrkB staining. Of note, a strong correlation was also observed between neuronal p-TrkB and endothelial BDNF staining. In cerebral microvessels-enriched fractions, AIA led to decreased BDNF and eNOS levels with a positive association between the 2 parameters. These effects coincided with decreased BDNF and p-TrkB staining in endothelial cells. The exposure of AIA cerebrovascular fractions to GTN increased BDNF levels while the exposure of control fractions to L-NAME decreased BDNF levels. Changes in the cerebral BDNF pathway were not associated with arthritis score. The present study reveals that AIA impairs the endothelial and neuronal BDNF/TrkB pathway, irrespective of the severity of inflammatory symptoms but dependent on endothelial NO production. These results open new perspectives for the understanding of the link between ED and impaired cognition.
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Affiliation(s)
- Martin Pedard
- INSERM UMR1093-CAPS, Université Bourgogne Franche-Comté, UFR des Sciences de Santé, Dijon, France.,Service de Neurologie, CHRU Dijon, Dijon, France
| | - Aurore Quirié
- INSERM UMR1093-CAPS, Université Bourgogne Franche-Comté, UFR des Sciences de Santé, Dijon, France
| | - Philippe Garnier
- INSERM UMR1093-CAPS, Université Bourgogne Franche-Comté, UFR des Sciences de Santé, Dijon, France
| | - Anne Tessier
- INSERM UMR1093-CAPS, Université Bourgogne Franche-Comté, UFR des Sciences de Santé, Dijon, France
| | - Céline Demougeot
- EA4267 PEPITE, FHU INCREASE, University of Bourgogne Franche-Comté, Besançon, France
| | - Christine Marie
- INSERM UMR1093-CAPS, Université Bourgogne Franche-Comté, UFR des Sciences de Santé, Dijon, France
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Liu S, Pan S, Tan J, Zhao W, Liu F. Oxytocin inhibits ox-LDL-induced adhesion of monocytic THP-1 cells to human brain microvascular endothelial cells. Toxicol Appl Pharmacol 2017; 337:104-110. [PMID: 29104011 DOI: 10.1016/j.taap.2017.10.022] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2017] [Revised: 10/26/2017] [Accepted: 10/31/2017] [Indexed: 12/28/2022]
Abstract
The attachment of monocytes to human brain microvascular endothelial cells (HBMVEs) caused by oxidized low-density lipoprotein (ox-LDL) is associated with an early event and the pathological progression of cerebrovascular diseases. Oxytocin (OT) is a human peptide hormone that is traditionally used as a medication to facilitate childbirth. However, little information is available regarding the physiological function of OT in brain endothelial dysfunction. In the present study, our results indicate that the oxytocin receptor (OTR) was expressed in human brain microvascular endothelial cells (HBMVEs) and was upregulated in response to ox-LDL in a concentration-dependent manner. Notably, OT significantly suppressed ox-LDL-induced attachment of THP-1 monocytes to HBMVEs. Furthermore, we found that OT reduced the expression of adhesion molecules, such as VCAM-1 and E-selectin. Interestingly, it was shown that OT could restore ox-LDL-induced reduction of KLF4 in HBMVEs. Importantly, knockdown of KLF4 abolished the inhibitory effects of OT on ox-LDL-induced expressions of VCAM-1 and E-selectin as well as the adhesion of human monocytic THP-1 cells to endothelial HBMVEs. Mechanistically, we found that the stimulatory effects of OT on KLF4 expression are mediated by the MEK5/MEF2A pathway.
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Affiliation(s)
- Shuyan Liu
- Department of neurology, Danyang People's Hospital of Jiangsu Province, Danyang, Jiangsu 212300, China
| | - Shengying Pan
- Department of neurology, Danyang People's Hospital of Jiangsu Province, Danyang, Jiangsu 212300, China
| | - Jing Tan
- Department of neurology, Danyang People's Hospital of Jiangsu Province, Danyang, Jiangsu 212300, China
| | - Weina Zhao
- Department of neurology, Hongqi Hospital Affiliated to Mudanjiang Medical university, Mudanjiang, Heilongjiang 157000, China
| | - Fengguo Liu
- Department of neurology, Danyang People's Hospital of Jiangsu Province, Danyang, Jiangsu 212300, China; Department of neurology, Hongqi Hospital Affiliated to Mudanjiang Medical university, Mudanjiang, Heilongjiang 157000, China.
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15
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Guo W, Diao Z, Liu W. Asymmetric dimethylarginine downregulates sarco/endoplasmic reticulum calcium‑ATPase 3 and induces endoplasmic reticulum stress in human umbilical vein endothelial cells. Mol Med Rep 2017; 16:7541-7547. [PMID: 28944875 PMCID: PMC5865888 DOI: 10.3892/mmr.2017.7529] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2017] [Accepted: 09/06/2017] [Indexed: 12/17/2022] Open
Abstract
Cardiovascular disease is the leading cause of mortality in patients with chronic kidney disease. Endothelial cell injury and apoptosis may promote atherosclerosis and cardiovascular disease. The present study investigated the potential mechanisms of asymmetric dimethylarginine (ADMA)‑induced apoptosis in human umbilical vein endothelial cells (HUVECs). It was demonstrated that ADMA decreased B‑cell lymphoma‑2 expression and increased cleaved‑caspase‑3 expression. Furthermore, terminal deoxynucleotidyl transferase (TdT)‑mediated‑digoxigenin‑11‑dUTP nick end labeling results indicated that ADMA induced apoptosis in HUVECs. These results suggest a potential mechanism of ADMA‑induced endothelial cell injury. It was also verified that ADMA induced the expression of phosphorylated protein kinase RNA‑like ER kinase, inositol requiring enzyme‑1, C/EBP homologous protein and glucose‑regulated protein, indicating activation of the endoplasmic reticulum (ER) stress response. Impaired function of sarco/endoplasmic reticulum calcium‑ATPase (SERCA) is considered a major contributor to ER stress. It was demonstrated that ADMA induced a significant downregulation of SERCA3, however not SERCA2b. Overall, the results indicated that ADMA induced apoptosis in HUVECs, and that this effect was closely associated with induction of ER stress and decreased SERCA3 expression.
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Affiliation(s)
- Weikang Guo
- Department of Nephrology, Beijing Friendship Hospital, Faculty of Kidney Diseases, Capital Medical University, Beijing 100050, P.R. China
| | - Zongli Diao
- Department of Nephrology, Beijing Friendship Hospital, Faculty of Kidney Diseases, Capital Medical University, Beijing 100050, P.R. China
| | - Wenhu Liu
- Department of Nephrology, Beijing Friendship Hospital, Faculty of Kidney Diseases, Capital Medical University, Beijing 100050, P.R. China
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16
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Zhang FQ, Lu W, Yuan WX, Li X. Regulation of c-Jun N-Terminal Protein Kinase (JNK) Pathway in Apoptosis of Endothelial Outgrowth Cells Induced by Asymmetric Dimethylarginine. Med Sci Monit 2017; 23:2535-2542. [PMID: 28546532 PMCID: PMC5455802 DOI: 10.12659/msm.904718] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2017] [Accepted: 04/18/2017] [Indexed: 01/03/2023] Open
Abstract
BACKGROUND Endothelial outgrowth cells (EOCs) are terminal endothelial progenitor cells (EPCs). Asymmetric dimethylarginine (ADMA) has been identified as a novel risk factor for cardiovascular diseases. Our aim in the present study was to investigate the effect of regulation of asymmetric dimethylarginine (ADMA) on EOCs apoptosis and to explore the underlining mechanisms of c-Jun N-terminal protein kinase (JNK) pathway in the process. MATERIAL AND METHODS EOCs were harvested from umbilical cord blood and obtained by using density gradient centrifugation and adhesive culture methods. Endothelial characteristics were identified by immunohistochemistry and fluorescence staining. EOCs were treated with different concentrations of ADMA and detected by flow cytometry. After JNK specific inhibitor (SP600125) was added, EOCs apoptosis protein expressions were measured by Western blot analysis. Proliferation, migration, and vascularization were detected by CCK-8 assay, wound healing assay, and tube-like formation assay, respectively. RESULTS EOCs were successfully extracted from umbilical cord blood and different concentrations of ADMA aggravated EOCs apoptosis. ADMA distinctly activates the phosphorylation activity of JNK. Supplementation of JNK-specific inhibitor (SP600125) decreased expression of Bax and cleaved caspase 3/9, and alleviated ADMA-induced apoptosis. SP600125 also promoted angiogenesis viability. CONCLUSIONS The JNK pathway participates in the apoptosis-promoting process of EOCs, and targeted inhibition of the JNK pathway can alleviate ADMA-induced injury, which I s the potential underlying mechanism of vascular endothelium injury in ischemic stroke.
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Affiliation(s)
| | | | | | - Xin Li
- Corresponding Author: Xin Li, e-mail:
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Li T, Feng R, Zhao C, Wang Y, Wang J, Liu S, Cao J, Wang H, Wang T, Guo Y, Lu Z. Dimethylarginine Dimethylaminohydrolase 1 Protects Against High-Fat Diet-Induced Hepatic Steatosis and Insulin Resistance in Mice. Antioxid Redox Signal 2017; 26:598-609. [PMID: 27565538 DOI: 10.1089/ars.2016.6742] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
AIMS High plasma concentrations of asymmetric dimethylarginine (ADMA), an endogenous nitric oxide synthase inhibitor, are associated with hepatic dysfunction in patients with nonalcoholic fatty liver disease (NAFLD). However, it is unknown whether ADMA is involved in the pathogenesis of NAFLD. Dimethylarginine dimethylaminohydrolase 1 (DDAH1) is an enzyme that degrades ADMA. In this study, we used Ddah1-/- mice to investigate the effects of the ADMA/DDAH1 pathway on high-fat diet (HFD)-induced hepatic steatosis. RESULTS After HFD feeding for 20 weeks, Ddah1-/- mice were more obese and had developed more severe hepatic steatosis and worse insulin resistance compared with wild-type (WT) mice. In the livers of HFD-fed mice, loss of DDAH1 resulted in higher levels of lipogenic genes, lower expression of β-oxidation genes, and greater induction of oxidative stress, endoplasmic reticulum stress, and inflammation than in the WT livers. Furthermore, ADMA treatment in HepG2 cells led to oxidative stress and steatosis, whereas overexpression of DDAH1 attenuated palmitic acid-induced steatosis, oxidative stress, and inflammation. Innovation and Conclusion: Our results provide the first direct evidence that the ADMA/DDAH1 pathway has a marked effect on hepatic lipogenesis and steatosis induced by HFD feeding. Our findings suggest that strategies to increase DDAH1 activity in hepatocytes may provide a novel approach to attenuate NAFLD development. Antioxid. Redox Signal. 26, 598-609.
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Affiliation(s)
- Tianhe Li
- College of Life Science, University of Chinese Academy of Sciences , Beijing, China
| | - Run Feng
- College of Life Science, University of Chinese Academy of Sciences , Beijing, China
| | - Chenyang Zhao
- College of Life Science, University of Chinese Academy of Sciences , Beijing, China
| | - Yue Wang
- College of Life Science, University of Chinese Academy of Sciences , Beijing, China
| | - Jian Wang
- College of Life Science, University of Chinese Academy of Sciences , Beijing, China
| | - Shasha Liu
- College of Life Science, University of Chinese Academy of Sciences , Beijing, China
| | - Jianwei Cao
- College of Life Science, University of Chinese Academy of Sciences , Beijing, China
| | - Hongyun Wang
- College of Life Science, University of Chinese Academy of Sciences , Beijing, China
| | - Ting Wang
- College of Life Science, University of Chinese Academy of Sciences , Beijing, China
| | - Yuting Guo
- College of Life Science, University of Chinese Academy of Sciences , Beijing, China
| | - Zhongbing Lu
- College of Life Science, University of Chinese Academy of Sciences , Beijing, China
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Monnier A, Prigent-Tessier A, Quirié A, Bertrand N, Savary S, Gondcaille C, Garnier P, Demougeot C, Marie C. Brain-derived neurotrophic factor of the cerebral microvasculature: a forgotten and nitric oxide-dependent contributor of brain-derived neurotrophic factor in the brain. Acta Physiol (Oxf) 2017; 219:790-802. [PMID: 27364224 DOI: 10.1111/apha.12743] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2016] [Revised: 04/16/2016] [Accepted: 06/28/2016] [Indexed: 12/14/2022]
Abstract
AIM Evidence that brain-derived neurotrophic factor (BDNF), a neurotrophin largely involved in cognition, is expressed by cerebral endothelial cells led us to explore in rats the contribution of the cerebral microvasculature to BDNF found in brain tissue and the link between cerebrovascular nitric oxide (NO) and BDNF production. METHODS Brain BDNF protein levels were measured before and after in situ removal of the cerebral endothelium that was achieved by brain perfusion with a 0.2% CHAPS (3-[(3-cholamidopropyl) dimethylammonio]-1-propane sulphonate) solution. BDNF protein and mRNA levels as well as levels of endothelial NO synthase phosphorylated at serine 1177 (P-eNOSser1177 ) were measured in cerebral microvessel-enriched fractions. These fractions were also exposed to glycerol trinitrate. Hypertension (spontaneously hypertensive rats) and physical exercise training were used as experimental approaches to modulate cerebrovascular endothelial NO production. RESULTS CHAPS perfusion resulted in a marked decrease in brain BDNF levels. Hypertension decreased and exercise increased P-eNOSser1177 and BDNF protein levels. However, BDNF mRNA levels that were increased by exercise did not change after hypertension. Finally, in vitro exposure of cerebral microvessel-enriched fractions to glycerol trinitrate enhanced BDNF production. CONCLUSION These data reveal that BDNF levels measured in brain homogenates correspond for a large part to BDNF present in cerebral endothelial cells and that cerebrovascular BDNF production is dependent on cerebrovascular endothelial eNOS activity. They provide a paradigm shift in the cellular source of brain BDNF and suggest a new approach to improve our understanding of the link between endothelial function and cognition.
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Affiliation(s)
- A. Monnier
- INSERM U1093 Cognition; Action et Plasticité Sensorimotrice; Univ. Bourgogne Franche-Comté; Dijon France
- Department of Rehabilitation; CHRU Dijon; Dijon France
| | - A. Prigent-Tessier
- INSERM U1093 Cognition; Action et Plasticité Sensorimotrice; Univ. Bourgogne Franche-Comté; Dijon France
| | - A. Quirié
- INSERM U1093 Cognition; Action et Plasticité Sensorimotrice; Univ. Bourgogne Franche-Comté; Dijon France
| | - N. Bertrand
- Département Génie Biologique; IUT; Dijon France
| | - S. Savary
- Département Génie Biologique; IUT; Dijon France
- Lab. Bio-PeroxIL; EA 7270; Univ. Bourgogne Franche-Comté; Dijon France
| | - C. Gondcaille
- Lab. Bio-PeroxIL; EA 7270; Univ. Bourgogne Franche-Comté; Dijon France
| | - P. Garnier
- INSERM U1093 Cognition; Action et Plasticité Sensorimotrice; Univ. Bourgogne Franche-Comté; Dijon France
- Département Génie Biologique; IUT; Dijon France
| | - C. Demougeot
- EA 4267 FDE; Univ. Bourgogne Franche-Comté; Besançon France
| | - C. Marie
- INSERM U1093 Cognition; Action et Plasticité Sensorimotrice; Univ. Bourgogne Franche-Comté; Dijon France
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Probucol Improves Erectile Function by Restoring Endothelial Function and Preventing Cavernous Fibrosis in Streptozotocin-induced Diabetic Rats. Urology 2016; 91:241.e9-241.e16. [DOI: 10.1016/j.urology.2016.02.004] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2015] [Revised: 01/11/2016] [Accepted: 02/03/2016] [Indexed: 01/06/2023]
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