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Rajamanickam G, Lee ATH, Liao P. Role of Brain Derived Neurotrophic Factor and Related Therapeutic Strategies in Central Post-Stroke Pain. Neurochem Res 2024; 49:2303-2318. [PMID: 38856889 DOI: 10.1007/s11064-024-04175-z] [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: 02/05/2024] [Revised: 04/08/2024] [Accepted: 05/22/2024] [Indexed: 06/11/2024]
Abstract
Brain-derived neurotrophic factor (BDNF) is vital for synaptic plasticity, cell persistence, and neuronal development in peripheral and central nervous systems (CNS). Numerous intracellular signalling pathways involving BDNF are well recognized to affect neurogenesis, synaptic function, cell viability, and cognitive function, which in turn affects pathological and physiological aspects of neurons. Stroke has a significant psycho-socioeconomic impact globally. Central post-stroke pain (CPSP), also known as a type of chronic neuropathic pain, is caused by injury to the CNS following a stroke, specifically damage to the somatosensory system. BDNF regulates a broad range of functions directly or via its biologically active isoforms, regulating multiple signalling pathways through interactions with different types of receptors. BDNF has been shown to play a major role in facilitating neuroplasticity during post-stroke recovery and a pro-nociceptive role in pain development in the nervous system. BDNF-tyrosine kinase receptors B (TrkB) pathway promotes neurite outgrowth, neurogenesis, and the prevention of apoptosis, which helps in stroke recovery. Meanwhile, BDNF overexpression plays a role in CPSP via the activation of purinergic receptors P2X4R and P2X7R. The neuronal hyperexcitability that causes CPSP is linked with BDNF-TrkB interactions, changes in ion channels and inflammatory reactions. This review provides an overview of BDNF synthesis, interactions with certain receptors, and potential functions in regulating signalling pathways associated with stroke and CPSP. The pathophysiological mechanisms underlying CPSP, the role of BDNF in CPSP, and the challenges and current treatment strategies targeting BDNF are also discussed.
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Affiliation(s)
- Gayathri Rajamanickam
- Calcium Signalling Laboratory, National Neuroscience Institute, 11 Jalan Tan Tock Seng, Singapore, 308433, Singapore
| | - Andy Thiam Huat Lee
- Health and Social Sciences Cluster, Singapore Institute of Technology, Singapore, Singapore
| | - Ping Liao
- Calcium Signalling Laboratory, National Neuroscience Institute, 11 Jalan Tan Tock Seng, Singapore, 308433, Singapore.
- Health and Social Sciences Cluster, Singapore Institute of Technology, Singapore, Singapore.
- Duke-NUS Medical School, Singapore, Singapore.
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2
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Kang DW, Choi SR, Shin H, Lee H, Park J, Lee M, Bae M, Kim HW. Modulation of Brain-derived Neurotrophic Factor Expression by Physical Exercise in Reserpine-induced Pain-depression Dyad in Mice. Exp Neurobiol 2024; 33:165-179. [PMID: 39266473 PMCID: PMC11411092 DOI: 10.5607/en24014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2024] [Revised: 08/05/2024] [Accepted: 08/20/2024] [Indexed: 09/14/2024] Open
Abstract
Pain accompanied by depressive symptoms is a common reason for seeking medical assistance, and many chronic pain patients experience comorbid depression. The brain-derived neurotrophic factor (BDNF) is a well-known neurotrophin expressed throughout the nervous system, playing a crucial role in neuronal growth and neuroplasticity. This study aimed to examine the effects of exercise on BDNF expression in the nervous system and reserpine (RSP)-induced pain-depression dyad. RSP (1 mg/kg) was subcutaneously administered once daily for three days in mice. The exercise was performed using a rota-rod tester for seven consecutive days following RSP administration. Pain responses were evaluated using von Frey filaments, and depression-like behaviors were assessed through forced swimming and open field tests. Immunofluorescence staining was performed to examine the changes in BDNF expression in the dorsal root ganglion (DRG), spinal cord, and hippocampus. Administration of RSP reduced mechanical paw withdrawal threshold, increased immobility time in the forced swimming test, and decreased movement in the open field test. The immunoreactivity of BDNF was increased in the DRG and spinal dorsal regions, and decreased in the hippocampus after RSP administration. Physical exercise significantly reduced the RSP-induced mechanical hypersensitivity and depression-like behaviors. In addition, exercise suppressed not only the increased expression of BDNF in the DRG and spinal dorsal regions but also the decreased expression of BDNF in the hippocampus induced by RSP administration. These findings suggest that repetitive exercise could serve as an effective and non-invasive treatment option for individuals experiencing both pain and depression by modulating BDNF expression.
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Affiliation(s)
- Dong-Wook Kang
- Department of Physiology and Medical Science, College of Medicine and Brain Research Institute, Chungnam National University, Daejeon 35015, Korea
| | - Sheu-Ran Choi
- Department of Pharmacology, Catholic Kwandong University College of Medicine, Gangneung 25601, Korea
| | - Hyunjin Shin
- Department of Physiology and Medical Science, College of Medicine and Brain Research Institute, Chungnam National University, Daejeon 35015, Korea
| | - Hyeryeong Lee
- Department of Physiology and Medical Science, College of Medicine and Brain Research Institute, Chungnam National University, Daejeon 35015, Korea
| | - Jaehong Park
- Department of Physiology and Medical Science, College of Medicine and Brain Research Institute, Chungnam National University, Daejeon 35015, Korea
| | - Miae Lee
- Department of Physiology and Medical Science, College of Medicine and Brain Research Institute, Chungnam National University, Daejeon 35015, Korea
| | - Miok Bae
- Preclinical Research Center, Chungnam National University Hospital, Daejeon 35015, Korea
| | - Hyun-Woo Kim
- Department of Physiology and Medical Science, College of Medicine and Brain Research Institute, Chungnam National University, Daejeon 35015, Korea
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3
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Merighi A. Brain-Derived Neurotrophic Factor, Nociception, and Pain. Biomolecules 2024; 14:539. [PMID: 38785946 PMCID: PMC11118093 DOI: 10.3390/biom14050539] [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: 02/08/2024] [Revised: 04/26/2024] [Accepted: 04/26/2024] [Indexed: 05/25/2024] Open
Abstract
This article examines the involvement of the brain-derived neurotrophic factor (BDNF) in the control of nociception and pain. BDNF, a neurotrophin known for its essential role in neuronal survival and plasticity, has garnered significant attention for its potential implications as a modulator of synaptic transmission. This comprehensive review aims to provide insights into the multifaceted interactions between BDNF and pain pathways, encompassing both physiological and pathological pain conditions. I delve into the molecular mechanisms underlying BDNF's involvement in pain processing and discuss potential therapeutic applications of BDNF and its mimetics in managing pain. Furthermore, I highlight recent advancements and challenges in translating BDNF-related research into clinical practice.
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Affiliation(s)
- Adalberto Merighi
- Department of Veterinary Sciences, University of Turin, 10095 Turin, Italy
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Xiong HY, Hendrix J, Schabrun S, Wyns A, Campenhout JV, Nijs J, Polli A. The Role of the Brain-Derived Neurotrophic Factor in Chronic Pain: Links to Central Sensitization and Neuroinflammation. Biomolecules 2024; 14:71. [PMID: 38254671 PMCID: PMC10813479 DOI: 10.3390/biom14010071] [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: 11/30/2023] [Revised: 01/02/2024] [Accepted: 01/03/2024] [Indexed: 01/24/2024] Open
Abstract
Chronic pain is sustained, in part, through the intricate process of central sensitization (CS), marked by maladaptive neuroplasticity and neuronal hyperexcitability within central pain pathways. Accumulating evidence suggests that CS is also driven by neuroinflammation in the peripheral and central nervous system. In any chronic disease, the search for perpetuating factors is crucial in identifying therapeutic targets and developing primary preventive strategies. The brain-derived neurotrophic factor (BDNF) emerges as a critical regulator of synaptic plasticity, serving as both a neurotransmitter and neuromodulator. Mounting evidence supports BDNF's pro-nociceptive role, spanning from its pain-sensitizing capacity across multiple levels of nociceptive pathways to its intricate involvement in CS and neuroinflammation. Moreover, consistently elevated BDNF levels are observed in various chronic pain disorders. To comprehensively understand the profound impact of BDNF in chronic pain, we delve into its key characteristics, focusing on its role in underlying molecular mechanisms contributing to chronic pain. Additionally, we also explore the potential utility of BDNF as an objective biomarker for chronic pain. This discussion encompasses emerging therapeutic approaches aimed at modulating BDNF expression, offering insights into addressing the intricate complexities of chronic pain.
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Affiliation(s)
- Huan-Yu Xiong
- Pain in Motion Research Group (PAIN), Department of Physiotherapy, Human Physiology and Anatomy, Faculty of Physical Education & Physiotherapy, Vrije Universiteit Brussel, 1090 Brussels, Belgium; (H.-Y.X.); (J.H.); (A.W.); (J.V.C.); (A.P.)
| | - Jolien Hendrix
- Pain in Motion Research Group (PAIN), Department of Physiotherapy, Human Physiology and Anatomy, Faculty of Physical Education & Physiotherapy, Vrije Universiteit Brussel, 1090 Brussels, Belgium; (H.-Y.X.); (J.H.); (A.W.); (J.V.C.); (A.P.)
- Department of Public Health and Primary Care, Centre for Environment & Health, KU Leuven, 3000 Leuven, Belgium
- Research Foundation—Flanders (FWO), 1000 Brussels, Belgium
| | - Siobhan Schabrun
- The School of Physical Therapy, University of Western Ontario, London, ON N6A 3K7, Canada;
- The Gray Centre for Mobility and Activity, Parkwood Institute, London, ON N6A 4V2, Canada
| | - Arne Wyns
- Pain in Motion Research Group (PAIN), Department of Physiotherapy, Human Physiology and Anatomy, Faculty of Physical Education & Physiotherapy, Vrije Universiteit Brussel, 1090 Brussels, Belgium; (H.-Y.X.); (J.H.); (A.W.); (J.V.C.); (A.P.)
| | - Jente Van Campenhout
- Pain in Motion Research Group (PAIN), Department of Physiotherapy, Human Physiology and Anatomy, Faculty of Physical Education & Physiotherapy, Vrije Universiteit Brussel, 1090 Brussels, Belgium; (H.-Y.X.); (J.H.); (A.W.); (J.V.C.); (A.P.)
| | - Jo Nijs
- Pain in Motion Research Group (PAIN), Department of Physiotherapy, Human Physiology and Anatomy, Faculty of Physical Education & Physiotherapy, Vrije Universiteit Brussel, 1090 Brussels, Belgium; (H.-Y.X.); (J.H.); (A.W.); (J.V.C.); (A.P.)
- Chronic Pain Rehabilitation, Department of Physical Medicine and Physiotherapy, University Hospital Brussels, 1090 Brussels, Belgium
- Department of Health and Rehabilitation, Unit of Physiotherapy, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, 41390 Göterbog, Sweden
| | - Andrea Polli
- Pain in Motion Research Group (PAIN), Department of Physiotherapy, Human Physiology and Anatomy, Faculty of Physical Education & Physiotherapy, Vrije Universiteit Brussel, 1090 Brussels, Belgium; (H.-Y.X.); (J.H.); (A.W.); (J.V.C.); (A.P.)
- Department of Public Health and Primary Care, Centre for Environment & Health, KU Leuven, 3000 Leuven, Belgium
- Research Foundation—Flanders (FWO), 1000 Brussels, Belgium
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5
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Behnoush AH, Khalaji A, Khanmohammadi S, Alehossein P, Saeedian B, Shobeiri P, Teixeira AL, Rezaei N. Brain-derived neurotrophic factor in fibromyalgia: A systematic review and meta-analysis of its role as a potential biomarker. PLoS One 2023; 18:e0296103. [PMID: 38127937 PMCID: PMC10734974 DOI: 10.1371/journal.pone.0296103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Accepted: 12/06/2023] [Indexed: 12/23/2023] Open
Abstract
BACKGROUND Fibromyalgia (FM) is a form of chronic pain disorder accompanied by several tender points, fatigue, sleeping and mood disturbances, cognitive dysfunction, and memory problems. Brain-derived neurotrophic factor (BDNF) is also a mediator of neurotrophin for many activity-dependent processes in the brain. Despite numerous research studies investigating BDNF in FM, contradictory results have been reported. Thus, we investigated the overall effect shown by studies to find the association between peripheral BDNF concentrations and its gene polymorphisms with FM. METHODS A systematic search in online international databases, including PubMed, Cochrane Library, Embase, the Web of Science, and Scopus was performed. Relevant studies assessing BDNF levels or gene polymorphism in patients with FM and comparing them with controls were included. Case reports, reviews, and non-English studies were excluded. We conducted the random-effect meta-analysis to estimate the pooled standardized mean difference (SMD) or odds ratio (OR) and 95% confidence interval (CI). RESULTS Twenty studies were found to be included composed of 1,206 FM patients and 1,027 controls. The meta-analysis of 15 studies indicated that the circulating BDNF levels were significantly higher in FM (SMD 0.72, 95% CI 0.12 to 1.31; p-value = 0.02). However, no difference between the rate of Val/Met carrier status at the rs6265 site was found (p-value = 0.43). Using meta-regression, the sample size and age variables accounted for 4.69% and 6.90% of the observed heterogeneity of BDNF level analysis, respectively. CONCLUSION Our meta-analysis demonstrated that FM is correlated with increased peripheral BDNF levels. This biomarker's diagnostic and prognostic value should be further investigated in future studies.
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Affiliation(s)
- Amir Hossein Behnoush
- School of Medicine, Tehran University of Medical Sciences (TUMS), Children’s Medical Center Hospital, Dr. Qarib St., Keshavarz Blvd, Tehran, Iran
- Network of Immunity in Infection, Malignancy and Autoimmunity (NIIMA), Universal Scientific Education and Research Network (USERN), Tehran, Iran
- Non–Communicable Diseases Research Center, Endocrinology and Metabolism Population Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Amirmohammad Khalaji
- School of Medicine, Tehran University of Medical Sciences (TUMS), Children’s Medical Center Hospital, Dr. Qarib St., Keshavarz Blvd, Tehran, Iran
- Network of Immunity in Infection, Malignancy and Autoimmunity (NIIMA), Universal Scientific Education and Research Network (USERN), Tehran, Iran
- Non–Communicable Diseases Research Center, Endocrinology and Metabolism Population Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Shaghayegh Khanmohammadi
- School of Medicine, Tehran University of Medical Sciences (TUMS), Children’s Medical Center Hospital, Dr. Qarib St., Keshavarz Blvd, Tehran, Iran
- Network of Immunity in Infection, Malignancy and Autoimmunity (NIIMA), Universal Scientific Education and Research Network (USERN), Tehran, Iran
- Research Center for Immunodeficiencies, Pediatrics Center of Excellence, Children’s Medical Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Parsa Alehossein
- School of Medicine, Tehran University of Medical Sciences (TUMS), Children’s Medical Center Hospital, Dr. Qarib St., Keshavarz Blvd, Tehran, Iran
- Network of Immunity in Infection, Malignancy and Autoimmunity (NIIMA), Universal Scientific Education and Research Network (USERN), Tehran, Iran
| | - Behrad Saeedian
- School of Medicine, Tehran University of Medical Sciences (TUMS), Children’s Medical Center Hospital, Dr. Qarib St., Keshavarz Blvd, Tehran, Iran
- Network of Immunity in Infection, Malignancy and Autoimmunity (NIIMA), Universal Scientific Education and Research Network (USERN), Tehran, Iran
| | - Parnian Shobeiri
- School of Medicine, Tehran University of Medical Sciences (TUMS), Children’s Medical Center Hospital, Dr. Qarib St., Keshavarz Blvd, Tehran, Iran
- Network of Immunity in Infection, Malignancy and Autoimmunity (NIIMA), Universal Scientific Education and Research Network (USERN), Tehran, Iran
- Non–Communicable Diseases Research Center, Endocrinology and Metabolism Population Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
- Research Center for Immunodeficiencies, Pediatrics Center of Excellence, Children’s Medical Center, Tehran University of Medical Sciences, Tehran, Iran
- Department of Radiology, Memorial Sloan Kettering Cancer Center, New York, NY, United States of America
| | - Antonio L. Teixeira
- Neuropsychiatry Program, Department of Psychiatry and Behavioral Sciences, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, TX, United States of America
| | - Nima Rezaei
- Network of Immunity in Infection, Malignancy and Autoimmunity (NIIMA), Universal Scientific Education and Research Network (USERN), Tehran, Iran
- Research Center for Immunodeficiencies, Pediatrics Center of Excellence, Children’s Medical Center, Tehran University of Medical Sciences, Tehran, Iran
- Department of Immunology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
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6
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Liu D, Liu M, Yu P, Li H. Brain-derived neurotrophic factor and nerve growth factor expression in endometriosis: A systematic review and meta-analysis. Taiwan J Obstet Gynecol 2023; 62:634-639. [PMID: 37678988 DOI: 10.1016/j.tjog.2023.07.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/27/2023] [Indexed: 09/09/2023] Open
Abstract
Endometriosis is diagnosed by laparoscopic surgery. The availability of biomarkers can help understand the pathophysiology and aid in the diagnosis of the condition. In this context, this review aimed to examine levels of expression of brain-derived neurotrophic factor (BDNF) and nerve growth factor (NGF) are increased amongst patients with endometriosis and if they can serve as a potential biomarker. PubMed, CENTRAL, Scopus, Web of Science, and Embase databases were searched for studies comparing BDNF or NGF levels amongst endometriosis patients and controls. Data were pooled for serum and tissue levels of BDNF and NGF. Ten fulfilled the inclusion criteria. On comparing BDNF levels, it was noted that endometrial tissue had significantly higher expression of BDNF levels as compared to controls (SMD: 1.73 95% CI: 0.64, 2.82 I2 = 89%). Similarly, the meta-analysis found significantly higher serum levels of BDNF in endometriosis patients as compared to controls (SMD: 1.66 95% CI: 0.73, 2.59 I2 = 95%). Pooled analysis showed significantly increased levels of NGF in endometrial tissue as compared to controls (SMD: 4.15 95% CI: 0.11, 8.18 I2 = 98%) but with unstable results on sensitivity analysis. Only one study showed higher levels of NGF in serum amongst endometriosis patients. Limited data shows higher expression of BDNF in endometrial lesions and increased serum levels of BDNF in endometriosis patients. Similar results were noted for NGF but with very scarce data. Further research is needed to establish BDNF and NGF as suitable biomarkers for the disease.
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Affiliation(s)
- Danqiu Liu
- Department of Gynaecology and Obstetrics, The Affiliated People's Hospital of Ningbo University, Ningbo, Zhejiang Province 315000, China.
| | - Minjie Liu
- Department of Obstetrics, The Affiliated People's Hospital of Ningbo University, Ningbo, Zhejiang Province 315000, China
| | - Pinling Yu
- Department of Gynaecology and Obstetrics, The Affiliated People's Hospital of Ningbo University, Ningbo, Zhejiang Province 315000, China
| | - Hongfeng Li
- Department of Gynaecology and Obstetrics, The Affiliated People's Hospital of Ningbo University, Ningbo, Zhejiang Province 315000, China
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7
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Pan L, Li T, Wang R, Deng W, Pu H, Deng M. Roles of Phosphorylation of N-Methyl-D-Aspartate Receptor in Chronic Pain. Cell Mol Neurobiol 2023; 43:155-175. [PMID: 35032275 DOI: 10.1007/s10571-022-01188-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Accepted: 01/03/2022] [Indexed: 01/07/2023]
Abstract
Phosphorylation of N-methyl-D-aspartate receptor (NMDAR) is widely regarded as a vital modification of synaptic function. Various protein kinases are responsible for direct phosphorylation of NMDAR, such as cyclic adenosine monophosphate-dependent protein kinase A, protein kinase C, Ca2+/calmodulin-dependent protein kinase II, Src family protein tyrosine kinases, cyclin-dependent kinase 5, and casein kinase II. The detailed function of these kinases on distinct subunits of NMDAR has been reported previously and contributes to phosphorylation at sites predominately within the C-terminal of NMDAR. Phosphorylation underlies both structural and functional changes observed in chronic pain, and studies have demonstrated that inhibitors of kinases are significantly effective in alleviating pain behavior in different chronic pain models. In addition, the exploration of drugs that aim to disrupt the interaction between kinases and NMDAR is promising in clinical research. Based on research regarding the modulation of NMDAR in chronic pain models, this review provides an overview of the phosphorylation of NMDAR-related mechanisms underlying chronic pain to elucidate molecular and pharmacologic references for chronic pain management.
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Affiliation(s)
- Liangyu Pan
- Department of Biochemistry and Molecular Biology and Hunan Province Key Laboratory of Basic and Applied Hematology, School of Life Sciences, Central South University, Changsha, 410013, Hunan, China.,Hunan Key Laboratory of Animal Models for Human Diseases & Hunan Key Laboratory of Medical Genetics, School of Life Sciences, Central South University, Changsha, 410013, Hunan, China
| | - Tiansheng Li
- Department of Biochemistry and Molecular Biology and Hunan Province Key Laboratory of Basic and Applied Hematology, School of Life Sciences, Central South University, Changsha, 410013, Hunan, China.,Hunan Key Laboratory of Animal Models for Human Diseases & Hunan Key Laboratory of Medical Genetics, School of Life Sciences, Central South University, Changsha, 410013, Hunan, China
| | - Rui Wang
- Department of Biochemistry and Molecular Biology and Hunan Province Key Laboratory of Basic and Applied Hematology, School of Life Sciences, Central South University, Changsha, 410013, Hunan, China.,Hunan Key Laboratory of Animal Models for Human Diseases & Hunan Key Laboratory of Medical Genetics, School of Life Sciences, Central South University, Changsha, 410013, Hunan, China
| | - Weiheng Deng
- Department of Biochemistry and Molecular Biology and Hunan Province Key Laboratory of Basic and Applied Hematology, School of Life Sciences, Central South University, Changsha, 410013, Hunan, China.,Hunan Key Laboratory of Animal Models for Human Diseases & Hunan Key Laboratory of Medical Genetics, School of Life Sciences, Central South University, Changsha, 410013, Hunan, China
| | - Huangsheng Pu
- College of Advanced Interdisciplinary Studies, National University of Defense Technology, Changsha, 410073, Hunan, China.
| | - Meichun Deng
- Department of Biochemistry and Molecular Biology and Hunan Province Key Laboratory of Basic and Applied Hematology, School of Life Sciences, Central South University, Changsha, 410013, Hunan, China. .,Hunan Key Laboratory of Animal Models for Human Diseases & Hunan Key Laboratory of Medical Genetics, School of Life Sciences, Central South University, Changsha, 410013, Hunan, China.
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8
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Abstract
N-methyl-d-aspartate receptors (NMDARs) and alpha-amino-3-hydroxy-5-methyl-4-isoxazole propionic acid receptors (AMPARs) are excitatory neurotransmission receptors of the central nervous system and play vital roles in synaptic plasticity. Although not fully elucidated, visceral hypersensitivity is one of the most well-characterized pathophysiologic abnormalities of functional gastrointestinal diseases and appears to be associated with increased synaptic plasticity. In this study, we review the updated findings on the physiology of NMDARs and AMPARs and their relation to visceral hypersensitivity, which propose directions for future research in this field with evolving importance.
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9
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Gonçalves S, Gowler PR, Woodhams SG, Turnbull J, Hathway G, Chapman V. The challenges of treating osteoarthritis pain and opportunities for novel peripherally directed therapeutic strategies. Neuropharmacology 2022; 213:109075. [DOI: 10.1016/j.neuropharm.2022.109075] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2021] [Revised: 03/07/2022] [Accepted: 04/21/2022] [Indexed: 12/22/2022]
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10
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Brandão-Teles C, Smith BJ, Carregari VC. PTMs: A Missing Piece for Schizophrenia Studies. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2022; 1382:119-127. [DOI: 10.1007/978-3-031-05460-0_9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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11
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Boakye PA, Tang SJ, Smith PA. Mediators of Neuropathic Pain; Focus on Spinal Microglia, CSF-1, BDNF, CCL21, TNF-α, Wnt Ligands, and Interleukin 1β. FRONTIERS IN PAIN RESEARCH 2021; 2:698157. [PMID: 35295524 PMCID: PMC8915739 DOI: 10.3389/fpain.2021.698157] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Accepted: 07/14/2021] [Indexed: 01/04/2023] Open
Abstract
Intractable neuropathic pain is a frequent consequence of nerve injury or disease. When peripheral nerves are injured, damaged axons undergo Wallerian degeneration. Schwann cells, mast cells, fibroblasts, keratinocytes and epithelial cells are activated leading to the generation of an "inflammatory soup" containing cytokines, chemokines and growth factors. These primary mediators sensitize sensory nerve endings, attract macrophages, neutrophils and lymphocytes, alter gene expression, promote post-translational modification of proteins, and alter ion channel function in primary afferent neurons. This leads to increased excitability and spontaneous activity and the generation of secondary mediators including colony stimulating factor 1 (CSF-1), chemokine C-C motif ligand 21 (CCL-21), Wnt3a, and Wnt5a. Release of these mediators from primary afferent neurons alters the properties of spinal microglial cells causing them to release tertiary mediators, in many situations via ATP-dependent mechanisms. Tertiary mediators such as BDNF, tumor necrosis factor α (TNF-α), interleukin 1β (IL-1β), and other Wnt ligands facilitate the generation and transmission of nociceptive information by increasing excitatory glutamatergic transmission and attenuating inhibitory GABA and glycinergic transmission in the spinal dorsal horn. This review focusses on activation of microglia by secondary mediators, release of tertiary mediators from microglia and a description of their actions in the spinal dorsal horn. Attention is drawn to the substantial differences in the precise roles of various mediators in males compared to females. At least 25 different mediators have been identified but the similarity of their actions at sensory nerve endings, in the dorsal root ganglia and in the spinal cord means there is considerable redundancy in the available mechanisms. Despite this, behavioral studies show that interruption of the actions of any single mediator can relieve signs of pain in experimental animals. We draw attention this paradox. It is difficult to explain how inactivation of one mediator can relieve pain when so many parallel pathways are available.
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Affiliation(s)
- Paul A. Boakye
- Department of Anesthesiology, Renaissance School of Medicine, Stony Brook University, Stony Brook, NY, United States
| | - Shao-Jun Tang
- Department of Anesthesiology, Renaissance School of Medicine, Stony Brook University, Stony Brook, NY, United States
| | - Peter A. Smith
- Neuroscience and Mental Health Institute and Department of Pharmacology, University of Alberta, Edmonton, AB, Canada
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12
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Guo H, Deji C, Peng H, Zhang J, Chen Y, Zhang Y, Wang Y. The role of SIRT1 in the basolateral amygdala in depression-like behaviors in mice. GENES BRAIN AND BEHAVIOR 2021; 20:e12765. [PMID: 34355499 DOI: 10.1111/gbb.12765] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2020] [Revised: 07/31/2021] [Accepted: 08/04/2021] [Indexed: 01/25/2023]
Abstract
Previous investigations have implicated the basolateral amygdala (BLA) epigenetic mechanisms in the pathophysiology of depression. SIRT1 is a NAD+-dependent class III histone deacetylase, widely expresses in BLA. However, epigenetic mechanisms in the BLA under the regulation of SIRT1 in the depression are largely uncharacterized. Under the chronic unpredictable chronic mild stress (CUMS) mouse model, we used adeno-associated viral vectors (AAV) that encoded SIRT1-shRNA or SIRT1 to specifically knockdown or overexpress SIRT1 in BLA neurons, respectively. CUMS procedure induced significant depression symptoms including the decreased sucrose preference, the less bodyweight gained, the decreased immobile latency and the increased immobile time both in forced swim test (FST) and tail suspension test (TST). Knockdown of SIRT1 in BLA glutamatergic neurons reversed these depression-like behaviors and restored the synaptic abnormalities. Overexpression of SIRT1 in BLA glutamatergic neurons induced depression-like behaviors in non-stressed control mice. The result of protein expressions and ultrastructural changes were consistent with the behavioral results. Our study suggested that downregulation of SIRT1 in BLA has certain beneficial effect on CUMS-induced depression-like behaviors such as anorexia, anhedonia, hopelessness and despair. In addition, the increased expression of SIRT1 may be the immediate cause of depressive-like symptoms. The abnormal expression of SIRT1 may affect the transcriptional regulation mechanism and signaling protein acetylation, affecting neuroplasticity and ultimately contribute to MDD. In the stress-susceptible mice, these two mechanisms may co-exist, but the specific mechanism needs further research.
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Affiliation(s)
- Hao Guo
- College of Forensic Science, Xi'an Jiaotong University, Shaanxi, China.,School of Sports Medicine and Rehabilitation, Beijing Sport University, Beijing, China
| | - Cuola Deji
- College of Forensic Science, Xi'an Jiaotong University, Shaanxi, China
| | - Han Peng
- School of Sports Medicine and Rehabilitation, Beijing Sport University, Beijing, China
| | - Jinyu Zhang
- College of Forensic Science, Xi'an Jiaotong University, Shaanxi, China
| | - Yuanyuan Chen
- College of Forensic Science, Xi'an Jiaotong University, Shaanxi, China
| | - Yulei Zhang
- College of Forensic Science, Xi'an Jiaotong University, Shaanxi, China
| | - Yunpeng Wang
- College of Forensic Science, Xi'an Jiaotong University, Shaanxi, China
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13
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Warfield AE, Prather JF, Todd WD. Systems and Circuits Linking Chronic Pain and Circadian Rhythms. Front Neurosci 2021; 15:705173. [PMID: 34276301 PMCID: PMC8284721 DOI: 10.3389/fnins.2021.705173] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2021] [Accepted: 06/10/2021] [Indexed: 12/15/2022] Open
Abstract
Research over the last 20 years regarding the link between circadian rhythms and chronic pain pathology has suggested interconnected mechanisms that are not fully understood. Strong evidence for a bidirectional relationship between circadian function and pain has been revealed through inflammatory and immune studies as well as neuropathic ones. However, one limitation of many of these studies is a focus on only a few molecules or cell types, often within only one region of the brain or spinal cord, rather than systems-level interactions. To address this, our review will examine the circadian system as a whole, from the intracellular genetic machinery that controls its timing mechanism to its input and output circuits, and how chronic pain, whether inflammatory or neuropathic, may mediate or be driven by changes in these processes. We will investigate how rhythms of circadian clock gene expression and behavior, immune cells, cytokines, chemokines, intracellular signaling, and glial cells affect and are affected by chronic pain in animal models and human pathologies. We will also discuss key areas in both circadian rhythms and chronic pain that are sexually dimorphic. Understanding the overlapping mechanisms and complex interplay between pain and circadian mediators, the various nuclei they affect, and how they differ between sexes, will be crucial to move forward in developing treatments for chronic pain and for determining how and when they will achieve their maximum efficacy.
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Affiliation(s)
| | | | - William D. Todd
- Program in Neuroscience, Department of Zoology and Physiology, University of Wyoming, Laramie, WY, United States
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14
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Honjo Y, Fujita Y, Niwa H, Yamashita T. Increased expression of Netrin-4 is associated with allodynia in a trigeminal neuropathic pain model rats by infraorbital nerve injury. PLoS One 2021; 16:e0251013. [PMID: 33914819 PMCID: PMC8084253 DOI: 10.1371/journal.pone.0251013] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Accepted: 04/18/2021] [Indexed: 12/01/2022] Open
Abstract
Neuropathic pain refers to pain caused by lesions or diseases of the somatosensory nervous system that is characteristically different from nociceptive pain. Moreover, neuropathic pain occurs in the maxillofacial region due to various factors and is treated using tricyclic antidepressants and nerve block therapy; however, some cases do not fully recover. Netrin is a secreted protein crucially involved in neural circuit formation during development, including cell migration, cell death, neurite formation, and synapse formation. Recent studies show Netrin-4 expressed in the dorsal horn of the spinal cord is associated with chronic pain. Here we found involvement of Netrin-4 in neuropathic pain in the maxillofacial region. Netrin-4, along with one of its receptors, Unc5B, are expressed in the caudal subnucleus of the trigeminal spinal tract nucleus. Inhibition of its binding by anti-Netrin-4 antibodies not only shows a behavioral analgesic effect but also neuronal activity suppression. There was increased Netrin-4 expression at 14 days after infraorbital nerve injury. Our findings suggest that Netrin-4 induced by peripheral nerve injury causes neuropathic pain via Unc5B.
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Affiliation(s)
- Yuka Honjo
- Department of Molecular Neuroscience, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
- Department of Dental Anesthesiology, Osaka University Graduate School of Dentistry, Suita, Osaka, Japan
| | - Yuki Fujita
- Department of Molecular Neuroscience, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
- Immunology Frontier Research Center, Osaka University, Suita, Osaka, Japan
| | - Hitoshi Niwa
- Department of Dental Anesthesiology, Osaka University Graduate School of Dentistry, Suita, Osaka, Japan
| | - Toshihide Yamashita
- Department of Molecular Neuroscience, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
- Immunology Frontier Research Center, Osaka University, Suita, Osaka, Japan
- Department of Molecular Neuroscience, Osaka University, Graduate School of Frontier Biosciences, Osaka University, Suita, Osaka, Japan
- Department of Neuro-Medical Science, Graduate School of Medicine, Osaka University, Osaka, Japan
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15
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Abstract
Brain-derived neurotrophic factor (BDNF) and the high-affinity receptor tropomyosin receptor kinase B (TrkB) have important roles in neuronal survival and in spinal sensitization mechanisms associated with chronic pain. Recent clinical evidence also supports a peripheral role of BDNF in osteoarthritis (OA), with synovial expression of TrkB associated with higher OA pain. The aim of this study was to use clinical samples and animal models to explore the potential contribution of knee joint BDNF/TrkB signalling to chronic OA pain. Brain-derived neurotrophic factor and TrkB mRNA and protein were present in knee synovia from OA patients (16 women, 14 men, median age 67 years [interquartile range: 61-73]). There was a significant positive correlation between mRNA expression of NTRK2 (TrkB) and the proinflammatory chemokine fractalkine in the OA synovia. Using the surgical medial meniscal transection (MNX) model and the chemical monosodium iodoacetate (MIA) model of OA pain in male rats, the effects of peripheral BDNF injection, vs sequestering endogenous BDNF with TrkB-Fc chimera, on established pain behaviour were determined. Intra-articular injection of BDNF augmented established OA pain behaviour in MIA rats, but had no effect in controls. Intra-articular injection of the TrkB-Fc chimera acutely reversed pain behaviour to a similar extent in both models of OA pain (weight-bearing asymmetry MIA: -11 ± 4%, MNX: -12 ± 4%), compared to vehicle treatment. Our data suggesting a contribution of peripheral knee joint BDNF/TrkB signalling in the maintenance of chronic OA joint pain support further investigation of the therapeutic potential of this target.
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16
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Gabapentin and Duloxetine Prevent Oxaliplatin- and Paclitaxel-Induced Peripheral Neuropathy by Inhibiting Extracellular Signal-Regulated Kinase 1/2 (ERK1/2) Phosphorylation in Spinal Cords of Mice. Pharmaceuticals (Basel) 2020; 14:ph14010030. [PMID: 33396362 PMCID: PMC7824557 DOI: 10.3390/ph14010030] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Revised: 12/28/2020] [Accepted: 12/28/2020] [Indexed: 12/14/2022] Open
Abstract
Chemotherapy-induced peripheral neuropathy is a common factor in limiting therapy which can result in therapy cessation or dose reduction. Gabapentin, a calcium channel inhibitor, and duloxetine, a serotonin noradrenaline reuptake inhibitor, are used to treat a variety of pain conditions such as chronic low back pain, postherpetic neuralgia, and diabetic neuropathy. It has been reported that administration of gabapentin suppressed oxaliplatin- and paclitaxel-induced mechanical hyperalgesia in rats. Moreover, duloxetine has been shown to suppress oxaliplatin-induced cold allodynia in rats. However, the mechanisms by which these drugs prevent oxaliplatin- and paclitaxel-induced neuropathy remain unknown. Behavioral assays were performed using cold plate and the von Frey test. The expression levels of proteins were examined using western blot analysis. In this study, we investigated the mechanisms by which gabapentin and duloxetine prevent oxaliplatin- and paclitaxel-induced neuropathy in mice. We found that gabapentin and duloxetine prevented the development of oxaliplatin- and paclitaxel-induced cold and mechanical allodynia. In addition, our results revealed that gabapentin and duloxetine suppressed extracellular signal-regulated protein kinase 1/2 (ERK1/2) phosphorylation in the spinal cord of mice. Moreover, PD0325901 prevented the development of oxaliplatin- and paclitaxel-induced neuropathic-like pain behavior by inhibiting ERK1/2 activation in the spinal cord of mice. In summary, our findings suggest that gabapentin, duloxetine, and PD0325901 prevent the development of oxaliplatin- and paclitaxel-induced neuropathic-like pain behavior by inhibiting ERK1/2 phosphorylation in mice. Therefore, inhibiting ERK1/2 phosphorylation could be an effective preventive strategy against oxaliplatin- and paclitaxel-induced neuropathy.
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17
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Minutillo A, Panza G, Mauri MC. Musical practice and BDNF plasma levels as a potential marker of synaptic plasticity: an instrument of rehabilitative processes. Neurol Sci 2020; 42:1861-1867. [PMID: 32940801 PMCID: PMC8043880 DOI: 10.1007/s10072-020-04715-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Accepted: 09/08/2020] [Indexed: 01/06/2023]
Abstract
Background and objectives The aim of the study was to investigate the influence of musical practice on brain plasticity. BDNF (brain-derived neurotrophic factor) is a neurotrophin involved in neuroplasticity and synaptic function. Materials and methods We recruited 48 healthy subjects of equal age and sex (21 musicians and 27 non-musicians). All subjects were administered the AQ (Autism-Spectrum Questionnaire) and plasma levels (PLs) of BDNF, oxytocin (OT), and vasopressin (VP) were measured in the blood sample of every participant. Results. The difference between BDNF PLs in the two groups was found to be statistically significant (t = − 2.214, p = 0.03). Furthermore, oxytocin (OT) PLs and musical practice were found to be independent positive predictors of BDNF PLs (p < 0.04). We also found a negative correlation between BDNF PLs and AD (attention to detail) sub-scale score of AQ throughout the whole sample. Assuming BDNF PLs to be a marker of synaptic plasticity, higher PLs could be associated with the activation of alternative neural pathways: a lower score in the “attention to detail” sub-scale could imply greater flexibility of higher cerebral functions among musicians. Further researches should be conducted to assess the rehabilitative usefulness of these findings among patients affected by psychiatric disorders.
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Affiliation(s)
- Alessandro Minutillo
- Department of Neurosciences and Mental Health, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy. .,Department of Pathophysiology and Transplantation, University of Milan, Milan, Italy.
| | - Gabriele Panza
- Department of Neurosciences and Mental Health, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Massimo Carlo Mauri
- Department of Neurosciences and Mental Health, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
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18
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Mayhew JA, Callister RJ, Walker FR, Smith DW, Graham BA. Aging alters signaling properties in the mouse spinal dorsal horn. Mol Pain 2020; 15:1744806919839860. [PMID: 30845881 PMCID: PMC6537084 DOI: 10.1177/1744806919839860] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
A well-recognized relationship exists between aging and increased susceptibility
to chronic pain conditions, underpinning the view that pain signaling pathways
differ in aged individuals. Yet despite the higher prevalence of altered pain
states among the elderly, the majority of preclinical work studying mechanisms
of aberrant sensory processing are conducted in juvenile or young adult animals.
This mismatch is especially true for electrophysiological studies where patch
clamp recordings from aged tissue are generally viewed as particularly
challenging. In this study, we have undertaken an electrophysiological
characterization of spinal dorsal horn neurons in young adult (3–4 months) and
aged (28–32 months) mice. We show that patch clamp data can be routinely
acquired in spinal cord slices prepared from aged animals and that the
excitability properties of aged dorsal horn neurons differ from recordings in
tissue prepared from young animals. Specifically, aged dorsal horn neurons more
readily exhibit repetitive action potential discharge, indicative of a more
excitable phenotype. This observation was accompanied by a decrease in the
amplitude and charge of spontaneous excitatory synaptic input to dorsal horn
neurons and an increase in the contribution of GABAergic signaling to
spontaneous inhibitory synaptic input in aged recordings. While the functional
significance of these altered circuit properties remains to be determined,
future work should seek to assess whether such features may render the aged
dorsal horn more susceptible to aberrant injury or disease-induced signaling and
contribute to increased pain in the elderly.
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Affiliation(s)
- J A Mayhew
- 1 Faculty of Health, School of Biomedical Sciences and Pharmacy, University of Newcastle, Callaghan, Australia.,2 Hunter Medical Research Institute, New Lambton Heights, Australia
| | - R J Callister
- 1 Faculty of Health, School of Biomedical Sciences and Pharmacy, University of Newcastle, Callaghan, Australia.,2 Hunter Medical Research Institute, New Lambton Heights, Australia
| | - F R Walker
- 1 Faculty of Health, School of Biomedical Sciences and Pharmacy, University of Newcastle, Callaghan, Australia.,2 Hunter Medical Research Institute, New Lambton Heights, Australia
| | - D W Smith
- 1 Faculty of Health, School of Biomedical Sciences and Pharmacy, University of Newcastle, Callaghan, Australia.,2 Hunter Medical Research Institute, New Lambton Heights, Australia
| | - B A Graham
- 1 Faculty of Health, School of Biomedical Sciences and Pharmacy, University of Newcastle, Callaghan, Australia.,2 Hunter Medical Research Institute, New Lambton Heights, Australia
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19
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BDNF impact on synaptic dynamics: extra or intracellular long-term release differently regulates cultured hippocampal synapses. Mol Brain 2020; 13:43. [PMID: 32183860 PMCID: PMC7079446 DOI: 10.1186/s13041-020-00582-9] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2019] [Accepted: 03/09/2020] [Indexed: 01/21/2023] Open
Abstract
Brain Derived Neurotrophic Factor (BDNF) signalling contributes to the formation, maturation and plasticity of Central Nervous System (CNS) synapses. Acute exposure of cultured brain circuits to BDNF leads to up-regulation of glutamatergic neuro-transmission, by the accurate tuning of pre and post synaptic features, leading to structural and functional synaptic changes. Chronic BDNF treatment has been comparatively less investigated, besides it may represent a therapeutic option to obtain rescue of post-injury alterations of synaptic networks. In this study, we used a paradigm of BDNF long-term (4 days) incubation to assess in hippocampal neurons in culture, the ability of such a treatment to alter synapses. By patch clamp recordings we describe the augmented function of excitatory neurotransmission and we further explore by live imaging the presynaptic changes brought about by long-term BDNF. In our study, exogenous long-term BDNF exposure of post-natal neurons did not affect inhibitory neurotransmission. We further compare, by genetic manipulations of cultured neurons and BDNF release, intracellular overexpression of this neurotrophin at the same developmental age. We describe for the first-time differences in synaptic modulation by BDNF with respect to exogenous or intracellular release paradigms. Such a finding holds the potential of influencing the design of future therapeutic strategies.
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20
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Brzdak P, Wójcicka O, Zareba-Koziol M, Minge D, Henneberger C, Wlodarczyk J, Mozrzymas JW, Wójtowicz T. Synaptic Potentiation at Basal and Apical Dendrites of Hippocampal Pyramidal Neurons Involves Activation of a Distinct Set of Extracellular and Intracellular Molecular Cues. Cereb Cortex 2020; 29:283-304. [PMID: 29228131 DOI: 10.1093/cercor/bhx324] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2017] [Accepted: 11/07/2017] [Indexed: 12/12/2022] Open
Abstract
In the central nervous system, several forms of experience-dependent plasticity, learning and memory require the activity-dependent control of synaptic efficacy. Despite substantial progress in describing synaptic plasticity, mechanisms related to heterogeneity of synaptic functions at local circuits remain elusive. Here we studied the functional and molecular aspects of hippocampal circuit plasticity by analyzing excitatory synapses at basal and apical dendrites of mouse hippocampal pyramidal cells (CA1 region) in acute brain slices. In the past decade, activity of metalloproteinases (MMPs) has been implicated as a widespread and critical factor in plasticity mechanisms at various projections in the CNS. However, in the present study we discovered that in striking contrast to apical dendrites, synapses located within basal dendrites undergo MMP-independent synaptic potentiation. We demonstrate that synapse-specific molecular pathway allowing MMPs to rapidly upregulate function of NMDARs in stratum radiatum involved protease activated receptor 1 and intracellular kinases and GTPases activity. In contrast, MMP-independent scaling of synaptic strength in stratum oriens involved dopamine D1/D5 receptors and Src kinases. Results of this study reveal that 2 neighboring synaptic systems differ significantly in extracellular and intracellular cascades that control synaptic gain and provide long-searched transduction pathways relevant for MMP-dependent synaptic plasticity.
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Affiliation(s)
- Patrycja Brzdak
- Laboratory of Neuroscience, Department of Biophysics, Wroclaw Medical University, Wroclaw, Poland.,Department of Molecular Physiology and Neurobiology, Wroclaw University, Wroclaw, Poland
| | - Olga Wójcicka
- Laboratory of Neuroscience, Department of Biophysics, Wroclaw Medical University, Wroclaw, Poland
| | - Monika Zareba-Koziol
- Laboratory of Cell Biophysics, Department of Molecular and Cellular Neurobiology, Nencki Institute of Experimental Biology of Polish Academy of Sciences, Warsaw, Poland
| | - Daniel Minge
- Institute of Cellular Neurosciences, University of Bonn Medical School, Bonn, Germany
| | - Christian Henneberger
- Institute of Cellular Neurosciences, University of Bonn Medical School, Bonn, Germany.,Center for Neurodegenerative Diseases (DZNE), Bonn, Germany.,Institute of Neurology, University College London, London, UK
| | - Jakub Wlodarczyk
- Laboratory of Cell Biophysics, Department of Molecular and Cellular Neurobiology, Nencki Institute of Experimental Biology of Polish Academy of Sciences, Warsaw, Poland
| | - Jerzy W Mozrzymas
- Laboratory of Neuroscience, Department of Biophysics, Wroclaw Medical University, Wroclaw, Poland.,Department of Molecular Physiology and Neurobiology, Wroclaw University, Wroclaw, Poland
| | - Tomasz Wójtowicz
- Laboratory of Neuroscience, Department of Biophysics, Wroclaw Medical University, Wroclaw, Poland
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21
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Rohbani K, Sabzevari S, Sadat-Shirazi MS, Nouri Zadeh-Tehrani S, Ashabi G, Khalifeh S, Ale-Ebrahim M, Zarrindast MR. Parental morphine exposure affects repetitive grooming actions and marble burying behavior in the offspring: Potential relevance for obsessive-compulsive like behavior. Eur J Pharmacol 2019; 865:172757. [PMID: 31693870 DOI: 10.1016/j.ejphar.2019.172757] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2019] [Revised: 10/05/2019] [Accepted: 10/22/2019] [Indexed: 12/11/2022]
Abstract
Family, adoption and twin studies have highlighted the significant role of heritable influences on individual differences in opioid addiction. Meanwhile, obsessive-compulsive disorder (OCD) is a disorder wherein the individual experiences recurring thoughts that cause irrational fears and anxiety. In the present study, adult male and female rats received morphine solution for 21 days and were drug-free for 10 days. Offspring were used in 4 distinct groups; (1) paternal morphine-exposed, (2) maternal morphine-exposed, (3) maternal and paternal morphine-exposed, and (4) drug-naïve subjects. We assessed the grooming behavior and marble burying test as an indicator of obsessive-compulsive behavior. To clarify the mechanisms underlying these changes, the mRNA level of BDNF, the phosphorylation level of CREB and the protein level of D2 dopamine receptor (DR) were evaluated in the nucleus accumbens (NAc). The grooming behavior in male offspring with one or two morphine-abstinent parent(s) increased compared with the offspring of drug naïve rats. In addition, the offspring of morphine-exposed parents buried more marbles when compared with the offspring of drug-naïve parents. Also, the BDNF mRNA was down-regulated in the NAC. However, the levels of phospho-CREB and D2 DR were elevated. Previous studies indicated that exposure to morphine in adulthood enhances the risk of psychiatric disorders in offspring. OCD is one the comorbid disorders with addiction and increases the risk of substance abuse disorder in patients. In this survey, we found that morphine exposure in parents before gestation can encourage obsessive-compulsive behavior in offspring.
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Affiliation(s)
- Kiyana Rohbani
- Department of Biochemistry and Biophysics, Faculty of Advanced Science and Technology, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Saba Sabzevari
- Department of Biochemistry and Biophysics, Faculty of Advanced Science and Technology, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | | | | | - Ghorbangol Ashabi
- Department of Physiology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Solmaz Khalifeh
- Cognitive and Neuroscience Research Center (CNRC), Tehran Medical Sciences Branch, Islamic Azad University, Tehran, Iran
| | - Mahsa Ale-Ebrahim
- Department of Physiology, Faculty of Advanced Science and Technology, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Mohammad-Reza Zarrindast
- Iranian National Center for Addiction Studies, Tehran University of Medical Sciences, Tehran, Iran; Cognitive and Neuroscience Research Center (CNRC), Tehran Medical Sciences Branch, Islamic Azad University, Tehran, Iran; Department of Pharmacology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran; Endocrinology and Metabolism Research Institute, Tehran University of Medical Science, Tehran, Iran.
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22
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Wang H, Wei Y, Pu Y, Jiang D, Jiang X, Zhang Y, Tao J. Brain-derived neurotrophic factor stimulation of T-type Ca2+ channels in sensory neurons contributes to increased peripheral pain sensitivity. Sci Signal 2019; 12:12/600/eaaw2300. [DOI: 10.1126/scisignal.aaw2300] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Although brain-derived neurotrophic factor (BDNF) is implicated in the nociceptive signaling of peripheral sensory neurons, the underlying mechanisms remain largely unknown. Here, we elucidated the effects of BDNF on the neuronal excitability of trigeminal ganglion (TG) neurons and the pain sensitivity of rats mediated by T-type Ca2+ channels. BDNF reversibly and dose-dependently enhanced T-type channel currents through the activation of tropomyosin receptor kinase B (TrkB). Antagonism of phosphatidylinositol 3-kinase (PI3K) but not of its downstream target, the kinase AKT, abolished the BDNF-induced T-type channel response. BDNF application activated p38 mitogen-activated protein kinase (MAPK), and this effect was prevented by inhibition of PI3K but not of protein kinase A (PKA). Antagonism of either PI3K or p38 MAPK prevented the BDNF-induced stimulation of PKA activity, whereas PKA inhibition blocked the BDNF-mediated increase in T-type currents. BDNF increased the rate of action potential firing in TG neurons and enhanced the pain sensitivity of rats to mechanical stimuli. Moreover, inhibition of TrkB signaling abolished the increased mechanical sensitivity in a rat model of chronic inflammatory pain, and this effect was attenuated by either T-type channel blockade or knockdown of the channel Cav3.2. Together, our findings indicate that BDNF enhances T-type currents through the stimulation of TrkB coupled to PI3K-p38-PKA signaling, thereby inducing neuronal hyperexcitability of TG neurons and pain hypersensitivity in rats.
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23
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Off-label Antidepressant Use for Treatment and Management of Chronic Pain: Evolving Understanding and Comprehensive Review. Curr Pain Headache Rep 2019; 23:66. [DOI: 10.1007/s11916-019-0803-z] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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24
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Boakye PA, Rancic V, Whitlock KH, Simmons D, Longo FM, Ballanyi K, Smith PA. Receptor dependence of BDNF actions in superficial dorsal horn: relation to central sensitization and actions of macrophage colony stimulating factor 1. J Neurophysiol 2019; 121:2308-2322. [PMID: 30995156 DOI: 10.1152/jn.00839.2018] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Peripheral nerve injury elicits an enduring increase in the excitability of the spinal dorsal horn. This change, which contributes to the development of neuropathic pain, is a consequence of release and prolonged exposure of dorsal horn neurons to various neurotrophins and cytokines. We have shown in rats that nerve injury increases excitatory synaptic drive to excitatory neurons but decreases drive to inhibitory neurons. Both effects, which contribute to an increase in dorsal horn excitability, appear to be mediated by microglia-derived BDNF. We have used multiphoton Ca2+ imaging and whole cell recording of spontaneous excitatory postsynaptic currents in defined-medium organotypic cultures of GAD67-GFP+ mice spinal cord to determine the receptor dependence of these opposing actions of BDNF. In mice, as in rats, BDNF enhances excitatory transmission onto excitatory neurons. This is mediated via presynaptic TrkB and p75 neurotrophin receptors and exclusively by postsynaptic TrkB. By contrast with findings from rats, in mice BDNF does not decrease excitation of inhibitory neurons. The cytokine macrophage colony-stimulating factor 1 (CSF-1) has also been implicated in the onset of neuropathic pain. Nerve injury provokes its de novo synthesis in primary afferents, its release in spinal cord, and activation of microglia. We now show that CSF-1 increases excitatory drive to excitatory neurons via a BDNF-dependent mechanism and decreases excitatory drive to inhibitory neurons via BDNF-independent processes. Our findings complete missing steps in the cascade of events whereby peripheral nerve injury instigates increased dorsal horn excitability in the context of central sensitization and the onset of neuropathic pain. NEW & NOTEWORTHY Nerve injury provokes synthesis of macrophage colony-stimulating factor 1 (CSF-1) in primary afferents and its release in the dorsal horn. We show that CSF-1 increases excitatory drive to excitatory dorsal horn neurons via BDNF activation of postsynaptic TrkB and presynaptic TrkB and p75 neurotrophin receptors. CSF-1 decreases excitatory drive to inhibitory neurons via a BDNF-independent processes. This completes missing steps in understanding how peripheral injury instigates central sensitization and the onset of neuropathic pain.
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Affiliation(s)
- Paul A Boakye
- Neuroscience and Mental Health Institute, University of Alberta , Edmonton , Canada
| | - Vladimir Rancic
- Neuroscience and Mental Health Institute, University of Alberta , Edmonton , Canada.,Department of Physiology, University of Alberta , Edmonton , Canada
| | - Kerri H Whitlock
- Neuroscience and Mental Health Institute, University of Alberta , Edmonton , Canada
| | - Danielle Simmons
- Department of Neurology and Neurological Sciences, Stanford University , Stanford, California
| | - Frank M Longo
- Department of Neurology and Neurological Sciences, Stanford University , Stanford, California
| | - Klaus Ballanyi
- Neuroscience and Mental Health Institute, University of Alberta , Edmonton , Canada.,Department of Physiology, University of Alberta , Edmonton , Canada
| | - Peter A Smith
- Neuroscience and Mental Health Institute, University of Alberta , Edmonton , Canada.,Department of Pharmacology, University of Alberta , Edmonton , Canada
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25
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Telias M. Molecular Mechanisms of Synaptic Dysregulation in Fragile X Syndrome and Autism Spectrum Disorders. Front Mol Neurosci 2019; 12:51. [PMID: 30899214 PMCID: PMC6417395 DOI: 10.3389/fnmol.2019.00051] [Citation(s) in RCA: 53] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2018] [Accepted: 02/12/2019] [Indexed: 12/21/2022] Open
Abstract
Fragile X syndrome (FXS) is the most common form of monogenic hereditary cognitive impairment. FXS patient exhibit a high comorbidity rate with autism spectrum disorders (ASDs). This makes FXS a model disease for understanding how synaptic dysregulation alters neuronal excitability, learning and memory, social behavior, and more. Since 1991, with the discovery of fragile X mental retardation 1 (FMR1) as the sole gene that is mutated in FXS, thousands of studies into the function of the gene and its encoded protein FMR1 protein (FMRP), have been conducted, yielding important information regarding the pathophysiology of the disease, as well as insight into basic synaptic mechanisms that control neuronal networking and circuitry. Among the most important, are molecular mechanisms directly involved in plasticity, including glutamate and γ-aminobutyric acid (GABA) receptors, which can control synaptic transmission and signal transduction, including short- and long-term plasticity. More recently, several novel mechanisms involving growth factors, enzymatic cascades and transcription factors (TFs), have been proposed to have the potential of explaining some of the synaptic dysregulation in FXS. In this review article, I summarize the main mechanisms proposed to underlie synaptic disruption in FXS and ASDs. I focus on studies conducted on the Fmr1 knock-out (KO) mouse model and on FXS-human pluripotent stem cells (hPSCs), emphasizing the differences and even contradictions between mouse and human, whenever possible. As FXS and ASDs are both neurodevelopmental disorders that follow a specific time-course of disease progression, I highlight those studies focusing on the differential developmental regulation of synaptic abnormalities in these diseases.
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Affiliation(s)
- Michael Telias
- Department of Molecular and Cell Biology, University of California, Berkeley, Berkeley, CA, United States
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26
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Morphine Dependence is Attenuated by Treatment of 3,4,5-Trimethoxy Cinnamic Acid in Mice and Rats. Neurochem Res 2019; 44:874-883. [PMID: 30632088 DOI: 10.1007/s11064-019-02720-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2018] [Accepted: 01/04/2019] [Indexed: 12/17/2022]
Abstract
The effect of 3, 4, 5-trimethoxy cinnamic acid (TMCA) against morphine-induced dependence in mice and rats was investigated. Mice were pretreated with TMCA and then morphine was injected intraperitoneally; whereas rats were treated with TMCA (i.p.) and infused with morphine into the lateral ventricle of brain. Naloxone-induced morphine withdrawal syndrome and conditioned place preference test were performed. Moreover, western blotting and immunohistochemistry were used to measure protein expressions. Number of naloxone-precipitated jumps and conditioned place preference score in mice were attenuated by TMCA. Likewise, TMCA attenuated morphine dependent behavioral patterns such as diarrhea, grooming, penis licking, rearing, teeth chattering, and vocalization in rats. Moreover, the expression levels of pNR1and pERK in the frontal cortex of mice and cultured cortical neurons were diminished by TMCA. In the striatum, pERK expression was attenuated despite unaltered expression of pNR1 and NR1. Interestingly, morphine-induced elevations of FosB/ΔFosB+ cells were suppressed by TMCA (50, 100 mg/kg) in the nucleus accumbens sub-shell region of mice. In conclusion, TMCA could be considered as potential therapeutic agent against morphine-induced dependence.
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Primary Afferent-Derived BDNF Contributes Minimally to the Processing of Pain and Itch. eNeuro 2018; 5:eN-NWR-0402-18. [PMID: 30627644 PMCID: PMC6325548 DOI: 10.1523/eneuro.0402-18.2018] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2018] [Revised: 11/13/2018] [Accepted: 11/20/2018] [Indexed: 11/21/2022] Open
Abstract
BDNF is a critical contributor to neuronal growth, development, learning, and memory. Although extensively studied in the brain, BDNF is also expressed by primary afferent sensory neurons in the peripheral nervous system. Unfortunately, anatomical and functional studies of primary afferent-derived BDNF have been limited by the availability of appropriate molecular tools. Here, we used targeted, inducible molecular approaches to characterize the expression pattern of primary afferent BDNF and the extent to which it contributes to a variety of pain and itch behaviors. Using a BDNF-LacZ reporter mouse, we found that BDNF is expressed primarily by myelinated primary afferents and has limited overlap with the major peptidergic and non-peptidergic subclasses of nociceptors and pruritoceptors. We also observed extensive neuronal, but not glial, expression in the spinal cord dorsal horn. In addition, because BDNF null mice are not viable and even Cre-mediated deletion of BDNF from sensory neurons could have developmental consequences, here we deleted BDNF selectively from sensory neurons, in the adult, using an advillin-Cre-ER line crossed to floxed BDNF mice. We found that BDNF deletion in the adult altered few itch or acute and chronic pain behaviors, beyond sexually dimorphic phenotypes in the tail immersion, histamine, and formalin tests. Based on the anatomical distribution of sensory neuron-derived BDNF and its limited contribution to pain and itch processing, we suggest that future studies of primary afferent-derived BDNF should examine behaviors evoked by activation of myelinated primary afferents.
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Wang R, Holsinger RMD. Exercise-induced brain-derived neurotrophic factor expression: Therapeutic implications for Alzheimer's dementia. Ageing Res Rev 2018; 48:109-121. [PMID: 30326283 DOI: 10.1016/j.arr.2018.10.002] [Citation(s) in RCA: 94] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2018] [Revised: 09/26/2018] [Accepted: 10/08/2018] [Indexed: 01/01/2023]
Abstract
Emerging evidence indicates that moderate intensity aerobic exercise is positively correlated with cognitive function and memory. However, the exact mechanisms underlying such improvements remain unclear. Recent research in animal models allows proposition of a pathway in which brain-derived neurotrophic factor (BDNF) is a key mediator. This perspective draws upon evidence from animal and human studies to highlight such a mechanism whereby exercise drives synthesis and accumulation of neuroactive metabolites such as myokines and ketone bodies in the periphery and in the hippocampus to enhance BDNF expression. BDNF is a neurotrophin with well-established properties of promoting neuronal survival and synaptic integrity, while its influence on energy transduction may provide the crucial link between inherent vascular and metabolic benefits of exercise with enhanced brain function. Indeed, BDNF mRNA and protein is robustly elevated in rats following periods of voluntary exercise. This was also correlated with improved spatial memory, while such benefits were abolished upon inhibition of BDNF signaling. Similarly, both BDNF and cardiovascular fitness arising from aerobic exercise have been positively associated with hippocampal volume and function in humans. We postulate that exercise will attenuate cortical atrophy and synaptic loss inherent to neurodegenerative disorders - many of which also exhibit aberrant down-regulation of BDNF. Thus, the proposed link between BDNF, exercise and cognition may have critical therapeutic implications for the prevention and amelioration of memory loss and cognitive impairment in Alzheimer's disease and associated dementias.
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Retamal J, Reyes A, Ramirez P, Bravo D, Hernandez A, Pelissier T, Villanueva L, Constandil L. Burst-Like Subcutaneous Electrical Stimulation Induces BDNF-Mediated, Cyclotraxin B-Sensitive Central Sensitization in Rat Spinal Cord. Front Pharmacol 2018; 9:1143. [PMID: 30364099 PMCID: PMC6191473 DOI: 10.3389/fphar.2018.01143] [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: 06/28/2018] [Accepted: 09/21/2018] [Indexed: 11/18/2022] Open
Abstract
Intrathecal administration of brain derived neurotrophic factor (BDNF) induces long-term potentiation (LTP) and generates long-lasting central sensitization in spinal cord thus mimicking chronic pain, but the relevance of these observations to chronic pain mechanisms is uncertain. Since C-fiber activation by a high-frequency subcutaneous electrical stimulation (SES) protocol causes spinal release of BDNF and induces spinal cord LTP, we propose that application of such protocol would be a sufficient condition for generating long-lasting BDNF-mediated central sensitization. Results showed that application of burst-like SES to rat toes produced (i) rapid induction of hyperalgesia that lasted for more than 3 weeks, (ii) early increase of C-reflex activity followed by increased wind-up scores lasting for more than 1 week, and (iii) early increase followed by late decrease in BDNF protein levels and phosphorylated TrkB that lasted for more than 1 week. These changes were prevented by the TrkB antagonist cyclotraxin-B administered shortly before SES, while hyperalgesia was reversed by cyclotraxin-B administered 3 days after SES. Results suggest that mechanisms underlying central sensitization first involve BDNF release of probably neuronal origin, followed by brief increased expression of likely glial BDNF and pTrkB that could switch early phase sensitization into late one.
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Affiliation(s)
- Jeffri Retamal
- Laboratory of Neurobiology, Department of Biology, Faculty of Chemistry and Biology, University of Santiago de Chile, Santiago, Chile.,Center for the Development of Nanoscience and Nanotechnology (CEDENNA), Santiago, Chile
| | - Andrea Reyes
- Laboratory of Neurobiology, Department of Biology, Faculty of Chemistry and Biology, University of Santiago de Chile, Santiago, Chile
| | - Paulina Ramirez
- Laboratory of Neurobiology, Department of Biology, Faculty of Chemistry and Biology, University of Santiago de Chile, Santiago, Chile.,Center for the Development of Nanoscience and Nanotechnology (CEDENNA), Santiago, Chile
| | - David Bravo
- Laboratory of Neurobiology, Department of Biology, Faculty of Chemistry and Biology, University of Santiago de Chile, Santiago, Chile.,Center for the Development of Nanoscience and Nanotechnology (CEDENNA), Santiago, Chile
| | - Alejandro Hernandez
- Laboratory of Neurobiology, Department of Biology, Faculty of Chemistry and Biology, University of Santiago de Chile, Santiago, Chile
| | - Teresa Pelissier
- Program of Molecular and Clinical Pharmacology, Institute of Biomedical Sciences, Faculty of Medicine, University of Chile, Santiago, Chile
| | - Luis Villanueva
- Centre de Psychiatrie et Neurosciences, INSERM UMR 894, Paris, France
| | - Luis Constandil
- Laboratory of Neurobiology, Department of Biology, Faculty of Chemistry and Biology, University of Santiago de Chile, Santiago, Chile.,Center for the Development of Nanoscience and Nanotechnology (CEDENNA), Santiago, Chile
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Ji RR, Nackley A, Huh Y, Terrando N, Maixner W. Neuroinflammation and Central Sensitization in Chronic and Widespread Pain. Anesthesiology 2018; 129:343-366. [PMID: 29462012 PMCID: PMC6051899 DOI: 10.1097/aln.0000000000002130] [Citation(s) in RCA: 737] [Impact Index Per Article: 122.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Chronic pain is maintained in part by central sensitization, a phenomenon of synaptic plasticity, and increased neuronal responsiveness in central pain pathways after painful insults. Accumulating evidence suggests that central sensitization is also driven by neuroinflammation in the peripheral and central nervous system. A characteristic feature of neuroinflammation is the activation of glial cells, such as microglia and astrocytes, in the spinal cord and brain, leading to the release of proinflammatory cytokines and chemokines. Recent studies suggest that central cytokines and chemokines are powerful neuromodulators and play a sufficient role in inducing hyperalgesia and allodynia after central nervous system administration. Sustained increase of cytokines and chemokines in the central nervous system also promotes chronic widespread pain that affects multiple body sites. Thus, neuroinflammation drives widespread chronic pain via central sensitization. We also discuss sex-dependent glial/immune signaling in chronic pain and new therapeutic approaches that control neuroinflammation for the resolution of chronic pain.
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Affiliation(s)
- Ru-Rong Ji
- Center for Translational Pain Medicine, Department of Anesthesiology, Duke University Medical Center, Durham, NC 27710
- Department of Neurobiology, Duke University Medical Center, Durham, NC 27710
| | - Andrea Nackley
- Center for Translational Pain Medicine, Department of Anesthesiology, Duke University Medical Center, Durham, NC 27710
| | - Yul Huh
- Center for Translational Pain Medicine, Department of Anesthesiology, Duke University Medical Center, Durham, NC 27710
| | - Niccolò Terrando
- Center for Translational Pain Medicine, Department of Anesthesiology, Duke University Medical Center, Durham, NC 27710
| | - William Maixner
- Center for Translational Pain Medicine, Department of Anesthesiology, Duke University Medical Center, Durham, NC 27710
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Belmonte LAO, Martins TC, Salm DC, Emer AA, de Oliveira BH, Mathias K, Goldim MP, Horewicz VV, Piovezan AP, Bobinski F, Petronilho F, Martins DF. Effects of Different Parameters of Continuous Training and High-Intensity Interval Training in the Chronic Phase of a Mouse Model of Complex Regional Pain Syndrome Type I. THE JOURNAL OF PAIN 2018; 19:1445-1460. [PMID: 30006271 DOI: 10.1016/j.jpain.2018.06.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2018] [Revised: 06/15/2018] [Accepted: 06/26/2018] [Indexed: 01/03/2023]
Abstract
This study evaluated the effects of continuous and interval running on a treadmill on mechanical hyperalgesia in an animal model of chronic postischemia pain and analyzed the mechanism of action of this effect. Different groups of male Swiss mice with chronic postischemia pain, induced by 3 hours of paw ischemia followed by reperfusion, ran on the treadmill in different protocols-the speed (10, 13, 16, or 19 m/min), duration (15, 30, or 60 minutes), weekly frequency (3 or 5 times), weekly increase in continuous and interval running speed-were tested. Mechanical hyperalgesia was evaluated by von Frey filament 7, 14, and 21 days after paw ischemia followed by reperfusion. On day 11 after paw ischemia followed by reperfusion and after 5 days of continuous and interval running, concentrations of cytokines, oxidative stress parameters, and extracellular signal-regulated kinase 1/2 and AKT 1/2/3 expression in the spinal cord were measured. The results showed that continuous running has an antihyperalgesic effect that depends on intensity and volume. Interval running has a longer-lasting antihyperalgesic effect than continuous running. The antihyperalgesic effect depends on intensity and volume in continuous running, and increasing speed maintains the antihyperalgesic effect in both protocols. In the spinal cord, both runs decreased tumor necrosis factor-α and interleukin-6 levels and increased interleukin-10. Both running protocols reduced oxidative damage in the spinal cord. Only interval running had lower concentrations of phosphorylated extracellular signal-regulated kinase 1/2 in the spinal cord. Interval running presented a great antihyperalgesic potential with more promising results than continuous running, which may be owing to the fact that the interval running can activate different mechanisms from those activated by continuous running. PERSPECTIVE: A minimum of .5-hour sessions of moderate to high intensity ≥3 times a week are essential parameters for continuous and interval running-induced analgesia. However, interval running was shown to be more effective than continuous running and can be an important adjuvant treatment to chronic pain.
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Affiliation(s)
- Luiz Augusto Oliveira Belmonte
- Postgraduate Program in Health Sciences, University of Southern Santa Catarina, Palhoça, Santa Catarina, Brazil; Experimental Neuroscience Laboratory (LaNEx), University of Southern Santa Catarina, Palhoça, Santa Catarina, Brazil
| | - Thiago César Martins
- Experimental Neuroscience Laboratory (LaNEx), University of Southern Santa Catarina, Palhoça, Santa Catarina, Brazil
| | - Daiana Cristina Salm
- Postgraduate Program in Health Sciences, University of Southern Santa Catarina, Palhoça, Santa Catarina, Brazil; Experimental Neuroscience Laboratory (LaNEx), University of Southern Santa Catarina, Palhoça, Santa Catarina, Brazil
| | - Aline Armiliato Emer
- Postgraduate Program in Health Sciences, University of Southern Santa Catarina, Palhoça, Santa Catarina, Brazil; Experimental Neuroscience Laboratory (LaNEx), University of Southern Santa Catarina, Palhoça, Santa Catarina, Brazil
| | - Bruna Hoffman de Oliveira
- Postgraduate Program in Health Sciences, University of Southern Santa Catarina, Palhoça, Santa Catarina, Brazil; Experimental Neuroscience Laboratory (LaNEx), University of Southern Santa Catarina, Palhoça, Santa Catarina, Brazil
| | - Khiany Mathias
- Postgraduate Program in Health Sciences, University of Southern Santa Catarina, Palhoça, Santa Catarina, Brazil; Laboratory of Neurobiology of Inflammatory and Metabolic Processes, University of Southern Santa Catarina at Tubarão, SC, Brazil
| | - Mariana Pereira Goldim
- Postgraduate Program in Health Sciences, University of Southern Santa Catarina, Palhoça, Santa Catarina, Brazil; Laboratory of Neurobiology of Inflammatory and Metabolic Processes, University of Southern Santa Catarina at Tubarão, SC, Brazil
| | - Verônica Vargas Horewicz
- Postgraduate Program in Health Sciences, University of Southern Santa Catarina, Palhoça, Santa Catarina, Brazil; Experimental Neuroscience Laboratory (LaNEx), University of Southern Santa Catarina, Palhoça, Santa Catarina, Brazil
| | - Anna Paula Piovezan
- Postgraduate Program in Health Sciences, University of Southern Santa Catarina, Palhoça, Santa Catarina, Brazil; Experimental Neuroscience Laboratory (LaNEx), University of Southern Santa Catarina, Palhoça, Santa Catarina, Brazil
| | - Franciane Bobinski
- Postgraduate Program in Health Sciences, University of Southern Santa Catarina, Palhoça, Santa Catarina, Brazil; Experimental Neuroscience Laboratory (LaNEx), University of Southern Santa Catarina, Palhoça, Santa Catarina, Brazil
| | - Fabrícia Petronilho
- Laboratory of Neurobiology of Inflammatory and Metabolic Processes, University of Southern Santa Catarina at Tubarão, SC, Brazil
| | - Daniel Fernandes Martins
- Postgraduate Program in Health Sciences, University of Southern Santa Catarina, Palhoça, Santa Catarina, Brazil; Experimental Neuroscience Laboratory (LaNEx), University of Southern Santa Catarina, Palhoça, Santa Catarina, Brazil.
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Csabafi K, Bagosi Z, Dobó É, Szakács J, Telegdy G, Szabó G. Kisspeptin modulates pain sensitivity of CFLP mice. Peptides 2018; 105:21-27. [PMID: 29709623 DOI: 10.1016/j.peptides.2018.04.018] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/24/2018] [Revised: 04/10/2018] [Accepted: 04/27/2018] [Indexed: 01/10/2023]
Abstract
Kisspeptin, a hypothalamic neuropeptide, is a member of the RF-amide family, which have been known to modify pain sensitivity in rodents. The aim of the present study was to investigate the effect of kisspeptin-13 (KP-13), an endogenous derivative of kisspeptin, on nociception in adult male and female CFLP mice and the possible interaction of KP-13 with morphine on nociception. Mice were injected with different doses of KP-13, 30, 60 and 120 min after of which the nociceptive sensitivity were assessed via the tail-flick test. To investigate the receptor involved in the mediation a kisspeptin receptor antagonist (KP-234) pretreatment was applied before KP-13 administration. Furthermore, we investigated the effect of KP-13 on the acute antinociceptive effect of morphine, on acute morphine tolerance and on naloxone-precipitated withdrawal. Last, the Von Frey test was used in order to assess KP-13's effect on mechanical nociception. Our results showed that KP-13 decreased the nociceptive threshold of both males and females independent of sex, which was prevented by KP-234. Furthermore, KP-13 treatment depressed the acute antinociceptive effect of morphine and attenuated the development of morphine tolerance. KP-13 also induced a mechanical hypersensitivity. These data underlie kisspeptin's hyperalgesic action and argues for the role of kisspeptin receptor 1 in the mediation of its action. Furthermore, our results suggest that central KP-13 administration can modify the acute effects of morphine.
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Affiliation(s)
- Krisztina Csabafi
- Department of Pathophysiology, University of Szeged, P.O. Box 427, 6701, Szeged, Hungary.
| | - Zsolt Bagosi
- Department of Pathophysiology, University of Szeged, P.O. Box 427, 6701, Szeged, Hungary
| | - Éva Dobó
- Department of Pathophysiology, University of Szeged, P.O. Box 427, 6701, Szeged, Hungary
| | - Júlia Szakács
- Department of Pathophysiology, University of Szeged, P.O. Box 427, 6701, Szeged, Hungary
| | - Gyula Telegdy
- Department of Pathophysiology, University of Szeged, P.O. Box 427, 6701, Szeged, Hungary; Neuroscience Research Group of the Hungarian Academy of Sciences, P.O. Box 521, 6701, Szeged, Hungary
| | - Gyula Szabó
- Department of Pathophysiology, University of Szeged, P.O. Box 427, 6701, Szeged, Hungary
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Yolland COB, Phillipou A, Castle DJ, Neill E, Hughes ME, Galletly C, Smith ZM, Francis PS, Dean OM, Sarris J, Siskind D, Harris AWF, Rossell SL. Improvement of cognitive function in schizophrenia with N-acetylcysteine: A theoretical review. Nutr Neurosci 2018; 23:139-148. [DOI: 10.1080/1028415x.2018.1478766] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
| | - Andrea Phillipou
- Centre for Mental Health, Swinburne University of Technology, Hawthorn, Australia
- Department of Psychiatry, St Vincent’s Hospital, Melbourne, Australia
- Psychiatry, Faculty of Medicine, University of Melbourne, Melbourne, Australia
| | - David J. Castle
- Centre for Mental Health, Swinburne University of Technology, Hawthorn, Australia
- Department of Psychiatry, St Vincent’s Hospital, Melbourne, Australia
- Psychiatry, Faculty of Medicine, University of Melbourne, Melbourne, Australia
| | - Erica Neill
- Centre for Mental Health, Swinburne University of Technology, Hawthorn, Australia
- Department of Psychiatry, St Vincent’s Hospital, Melbourne, Australia
- Psychiatry, Faculty of Medicine, University of Melbourne, Melbourne, Australia
| | - Matthew E. Hughes
- Centre for Mental Health, Swinburne University of Technology, Hawthorn, Australia
| | - Cherrie Galletly
- Discipline of Psychiatry, University of Adelaide, Adelaide, Australia
- Ramsay Health Care (SA) Mental Health, Adelaide, Australia
- Northern Adelaide Local Health Network, Adelaide, Australia
| | - Zoe M. Smith
- School of Life and Environmental Sciences, Deakin University, Waurn Ponds, Australia
| | - Paul S. Francis
- School of Life and Environmental Sciences, Deakin University, Waurn Ponds, Australia
| | - Olivia M. Dean
- Psychiatry, Faculty of Medicine, University of Melbourne, Melbourne, Australia
- IMPACT Strategic Research Centre, Barwon Health, Deakin University, Geelong, Australia
- Florey Institute for Neuroscience and Mental Health, University of Melbourne, Parkville, Australia
| | - Jerome Sarris
- NICM Health Research Institute, School of Science and Health, Western Sydney University, Campbelltown, Australia
- Department of Psychiatry, Professorial Unit, The Melbourne Clinic, University of Melbourne, Melbourne, Australia
| | - Dan Siskind
- Metro South Addiction and Mental Health Service, Brisbane, Australia
- Faculty of Medicine, University of Queensland, Brisbane, Australia
| | - Anthony W. F. Harris
- Discipline of Psychiatry, Sydney Medical School, University of Sydney, Sydney, Australia
- Brain Dynamics Centre, The Westmead Institute for Medical Research, University of Sydney, Sydney, Australia
| | - Susan L. Rossell
- Centre for Mental Health, Swinburne University of Technology, Hawthorn, Australia
- Department of Psychiatry, St Vincent’s Hospital, Melbourne, Australia
- Monash Alfred Psychiatry Research Centre (MAPrc), The Alfred Hospital and Monash University Central Clinical School, Melbourne, Australia
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Sikandar S, Minett MS, Millet Q, Santana-Varela S, Lau J, Wood JN, Zhao J. Brain-derived neurotrophic factor derived from sensory neurons plays a critical role in chronic pain. Brain 2018; 141:1028-1039. [PMID: 29394316 PMCID: PMC5888992 DOI: 10.1093/brain/awy009] [Citation(s) in RCA: 102] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2017] [Revised: 11/29/2017] [Accepted: 12/02/2017] [Indexed: 12/24/2022] Open
Abstract
Many studies support the pro-nociceptive role of brain-derived neurotrophin factor (BDNF) in pain processes in the peripheral and central nervous system. We have previously shown that nociceptor-derived BDNF is involved in inflammatory pain. Microglial-derived BDNF has also been shown to be involved in neuropathic pain. However, the distinct contribution of primary afferent-derived BNDF to chronic pain processing remains undetermined. In this study, we used Avil-CreERT2 mice to delete Bdnf from all adult peripheral sensory neurons. Conditional BDNF knockouts were healthy with no sensory neuron loss. Behavioural assays and in vivo electrophysiology indicated that spinal excitability was normal. Following formalin inflammation or neuropathy with a modified Chung model, we observed normal development of acute pain behaviour, but a deficit in second phase formalin-induced nocifensive responses and a reversal of neuropathy-induced mechanical hypersensitivity during the later chronic pain phase in conditional BDNF knockout mice. In contrast, we observed normal development of acute and chronic neuropathic pain in the Seltzer model, indicating differences in the contribution of BDNF to distinct models of neuropathy. We further used a model of hyperalgesic priming to examine the contribution of primary afferent-derived BDNF in the transition from acute to chronic pain, and found that primed BDNF knockout mice do not develop prolonged mechanical hypersensitivity to an inflammatory insult. Our data suggest that BDNF derived from sensory neurons plays a critical role in mediating the transition from acute to chronic pain.
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Affiliation(s)
- Shafaq Sikandar
- Molecular Nociception Group, Wolfson Institute for Biomedical Research, Division of Medicine, University College London, Gower Street London WC1E 6BT, UK
| | - Michael S Minett
- Molecular Nociception Group, Wolfson Institute for Biomedical Research, Division of Medicine, University College London, Gower Street London WC1E 6BT, UK
| | - Queensta Millet
- Molecular Nociception Group, Wolfson Institute for Biomedical Research, Division of Medicine, University College London, Gower Street London WC1E 6BT, UK
| | - Sonia Santana-Varela
- Molecular Nociception Group, Wolfson Institute for Biomedical Research, Division of Medicine, University College London, Gower Street London WC1E 6BT, UK
| | - Joanne Lau
- Molecular Nociception Group, Wolfson Institute for Biomedical Research, Division of Medicine, University College London, Gower Street London WC1E 6BT, UK
| | - John N Wood
- Molecular Nociception Group, Wolfson Institute for Biomedical Research, Division of Medicine, University College London, Gower Street London WC1E 6BT, UK
| | - Jing Zhao
- Molecular Nociception Group, Wolfson Institute for Biomedical Research, Division of Medicine, University College London, Gower Street London WC1E 6BT, UK
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Jiang S, Li X, Jin W, Duan X, Bo L, Wu J, Zhang R, Wang Y, Kang R, Huang L. Ketamine-induced neurotoxicity blocked by N-Methyl-d-aspartate is mediated through activation of PKC/ERK pathway in developing hippocampal neurons. Neurosci Lett 2018; 673:122-131. [PMID: 29501685 DOI: 10.1016/j.neulet.2018.02.051] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2017] [Revised: 02/12/2018] [Accepted: 02/23/2018] [Indexed: 11/26/2022]
Abstract
Ketamine, a non-competitive N-methyl d-aspartate (NMDA) receptor antagonist, is widely used in pediatric clinical practice. However, prolonged exposure to ketamine results in widespread anesthetic neurotoxicity and long-term neurocognitive deficits. The molecular mechanisms that underlie this important event are poorly understood. We investigated effects of anesthetic ketamine on neuroapoptosis and further explored role of NMDA receptors in ketamine-induced neurotoxicity. Here we demonstrate that ketamine induces activation of cell cycle entry, resulting in cycle-related neuronal apoptosis. On the other hand, ketamine administration alters early and late apoptosis of cultured hippocampus neurons by inhibiting PKC/ERK pathway, whereas excitatory NMDA receptor activation reverses these effects. Ketamine-induced neurotoxicity blocked by NMDA is mediated through activation of PKC/ERK pathway in developing hippocampal neurons.
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Affiliation(s)
- Sufang Jiang
- Department of Anesthesiology, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei Province, China
| | - Xuze Li
- Department of Anesthesiology, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei Province, China
| | - Wei Jin
- Department of Neurology, Hebei General Hospital, Shijiazhuang, Hebei Province, China
| | - Xiaofeng Duan
- Department of Anesthesiology, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei Province, China
| | - Lijun Bo
- Department of Anesthesiology, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei Province, China
| | - Jiangli Wu
- Department of Anesthesiology, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei Province, China
| | - Rui Zhang
- Department of Anesthesiology, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei Province, China
| | - Ying Wang
- Department of Anesthesiology, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei Province, China
| | - Rongtian Kang
- Department of Anesthesiology, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei Province, China
| | - Lining Huang
- Department of Anesthesiology, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei Province, China.
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Sensory neuronal P2RX4 receptors controls BDNF signaling in inflammatory pain. Sci Rep 2018; 8:964. [PMID: 29343707 PMCID: PMC5772667 DOI: 10.1038/s41598-018-19301-5] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2017] [Accepted: 12/27/2017] [Indexed: 11/09/2022] Open
Abstract
Chronic inflammatory and neuropathic pains are major public health concerns. Potential therapeutic targets include the ATP-gated purinergic receptors (P2RX) that contribute to these pathological types of pain in several different cell types. The purinergic receptors P2RX2 and P2RX3 are expressed by a specific subset of dorsal root ganglion neurons and directly shape pain processing by primary afferents. In contrast the P2RX4 and P2RX7 are mostly expressed in myeloid cells, where activation of these receptors triggers the release of various pro-inflammatory molecules. Here, we demonstrate that P2RX4 also controls calcium influx in mouse dorsal root ganglion neurons. P2RX4 is up-regulated in pain-processing neurons during long lasting peripheral inflammation and it co-localizes with Brain-Derived Neurotrophic Factor (BDNF). In the dorsal horn of the spinal cord, BDNF-dependent signaling pathways, phosphorylation of Erk1/2 and of the GluN1 subunit as well as the down regulation of the co-transporter KCC2, which are triggered by peripheral inflammation are impaired in P2RX4-deficient mice. Our results suggest that P2RX4, expressed by sensory neurons, controls neuronal BDNF release that contributes to hyper-excitability during chronic inflammatory pain and establish P2RX4 in sensory neurons as a new potential therapeutic target to treat hyperexcitability during chronic inflammatory pain.
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Ding S, Zhu T, Tian Y, Xu P, Chen Z, Huang X, Zhang X. Role of Brain-Derived Neurotrophic Factor in Endometriosis Pain. Reprod Sci 2017; 25:1045-1057. [DOI: 10.1177/1933719117732161] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Shaojie Ding
- Women’s Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, People’s Republic of China
| | - Tianhong Zhu
- Women’s Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, People’s Republic of China
| | - Yonghong Tian
- Women’s Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, People’s Republic of China
| | - Ping Xu
- Women’s Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, People’s Republic of China
| | - Zhengyun Chen
- Women’s Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, People’s Republic of China
| | - Xiufeng Huang
- Women’s Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, People’s Republic of China
| | - Xinmei Zhang
- Women’s Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, People’s Republic of China
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Marcos J, Galleguillos D, Pelissier T, Hernández A, Velásquez L, Villanueva L, Constandil L. Role of the spinal TrkB-NMDA receptor link in the BDNF-induced long-lasting mechanical hyperalgesia in the rat: A behavioural study. Eur J Pain 2017; 21:1688-1696. [DOI: 10.1002/ejp.1075] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/29/2017] [Indexed: 11/05/2022]
Affiliation(s)
- J.L. Marcos
- Laboratory of Neurobiology; Department of Biology; Faculty of Chemistry and Biology; University of Santiago of Chile; Chile
- Laboratory of Veterinary Pharmacology and Therapeutics; School of Veterinary Science; Viña del Mar University; Chile
| | - D. Galleguillos
- Laboratory of Neurobiology; Department of Biology; Faculty of Chemistry and Biology; University of Santiago of Chile; Chile
| | - T. Pelissier
- Program of Molecular and Clinical Pharmacology; Institute of Biomedical Sciences (ICBM); Faculty of Medicine; University of Chile; Santiago Chile
| | - A. Hernández
- Laboratory of Neurobiology; Department of Biology; Faculty of Chemistry and Biology; University of Santiago of Chile; Chile
| | - L. Velásquez
- Center for Integrative Medicine and Innovative Science (CIMIS); Faculty of Medicine; Andres Bello University; Santiago Chile
| | - L. Villanueva
- Centre de Psychiatrie et Neurosciences; INSERM UMR 894; Paris France
| | - L. Constandil
- Laboratory of Neurobiology; Department of Biology; Faculty of Chemistry and Biology; University of Santiago of Chile; Chile
- Center for the Development of Nanoscience and Nanotechnology (CEDENNA); University of Santiago of Chile; Chile
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Wu HX, Wang YM, Xu H, Wei M, He QL, Li MN, Sun LB, Cao MH. Osthole, a Coumadin Analog from Cnidium monnieri (L.) Cusson, Ameliorates Nucleus Pulposus-Induced Radicular Inflammatory Pain by Inhibiting the Activation of Extracellular Signal-Regulated Kinase in Rats. Pharmacology 2017; 100:74-82. [DOI: 10.1159/000475599] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2017] [Accepted: 04/10/2017] [Indexed: 12/13/2022]
Abstract
Aim: This study was aimed at assessing the role of extracellular signal regulated kinase (ERK) in mechanical allodynia resulting from lumbar disc herniation (LDH) and exploring the osthole's anti-nociceptive effect on ERK activation. Methods: Radicular pain was generated by applying nucleus pulposus (NP) to the L5 dorsal root ganglion (DRG). Allodynia was measured using Von Frey filaments to calculate the mechanical pain threshold. Phosphorylated ERK and total ERK protein in the lumbar spinal dorsal horn was detected by using the Western blot technique. Cyclooxygenase 2 (COX-2) mRNA was assessed by real-time reverse-transcription polymerase chain reaction. Results: The application of NP to L5 DRG induced mechanical hypersensitivity which lasted for at least 28 days, and a significant increase of ERK phosphorylation in the ipsilateral spinal dorsal horn from postoperative day (POD) 1 to POD 21. ERK inhibitor attenuated NP-induced hyperalgesia compared to the dimethyl sulfoxide-(vehicle control) administered group (p < 0.05). Epidural treatment with osthole could ameliorate NP-evoked hyperalgesia by suppressing the activation of ERK rather than decreasing the expression of ERK protein. Osthole could also inhibit the increased expression of COX-2 mRNA in spinal dorsal horn, which was a known downstream effect of ERK signaling pathway. Conclusions: Our results suggest that ERK activation in the spinal dorsal horn plays a vital role in NP-evoked hyperalgesia. Osthole exerts analgesic effect on radicular inflammatory pain in LDH rat model, by down-regulating the mRNA expression of the target gene of COX-2 via inhibiting ERK activation in the spinal dorsal horn.
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Mitre M, Mariga A, Chao MV. Neurotrophin signalling: novel insights into mechanisms and pathophysiology. Clin Sci (Lond) 2017; 131:13-23. [PMID: 27908981 PMCID: PMC5295469 DOI: 10.1042/cs20160044] [Citation(s) in RCA: 176] [Impact Index Per Article: 25.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2016] [Revised: 07/18/2016] [Accepted: 08/09/2016] [Indexed: 12/29/2022]
Abstract
Neurotrophins, such as brain-derived neurotrophic factor (BDNF), are prominent regulators of neuronal survival, growth and differentiation during development. While trophic factors are viewed as well-understood but not innovative molecules, there are many lines of evidence indicating that BDNF plays an important role in the pathophysiology of many neurodegenerative disorders, depression, anxiety and other psychiatric disorders. In particular, lower levels of BDNF are associated with the aetiology of Alzheimer's and Huntington's diseases. A major challenge is to explain how neurotrophins are able to induce plasticity, improve learning and memory and prevent age-dependent cognitive decline through receptor signalling. This article will review the mechanism of action of neurotrophins and how BDNF/tropomyosin receptor kinase B (TrkB) receptor signaling can dictate trophic responses and change brain plasticity through activity-dependent stimulation. Alternative approaches for modulating BDNF/TrkB signalling to deliver relevant clinical outcomes in neurodegenerative and neuropsychiatric disorders will also be described.
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Affiliation(s)
- Mariela Mitre
- Neuroscience and Physiology and Psychiatry, New York University School of Medicine, New York, NY 10016, U.S.A.
- Skirball Institute for Biomolecular Medicine, New York University School of Medicine, New York, NY 10016, U.S.A
| | - Abigail Mariga
- Skirball Institute for Biomolecular Medicine, New York University School of Medicine, New York, NY 10016, U.S.A
- Departments of Cell Biology, New York University School of Medicine, New York, NY 10016, U.S.A
| | - Moses V Chao
- Neuroscience and Physiology and Psychiatry, New York University School of Medicine, New York, NY 10016, U.S.A
- Skirball Institute for Biomolecular Medicine, New York University School of Medicine, New York, NY 10016, U.S.A
- Departments of Cell Biology, New York University School of Medicine, New York, NY 10016, U.S.A
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Malcangio M. Spinal mechanisms of neuropathic pain: Is there a P2X4-BDNF controversy? NEUROBIOLOGY OF PAIN (CAMBRIDGE, MASS.) 2017; 1:1-5. [PMID: 30272037 PMCID: PMC6148335 DOI: 10.1016/j.ynpai.2017.04.001] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/10/2017] [Revised: 04/03/2017] [Accepted: 04/07/2017] [Indexed: 11/25/2022]
Abstract
More than a decade ago the novel concept that glial cells are major players in the modulation of pain mechanisms in the spinal cord has started a prolific series of work addressing the modalities of neuron-glia communication. Mike Salter with Kazuhide Inoue laboratories introduced ATP as pivotal mediator for such communication via activation of P2X4 receptors expressed by microglia in the dorsal horn ipsilateral to a peripheral nerve injury. Activation of P2X4 receptors result in release of the neurotrophin BDNF, which, through the activation of neuronal TrkB receptors, alters neuronal excitability and this effect is associated with behavioural ipsilateral allodynia. This viewpoint article compares the evidence supporting a biological relevance of the P2X4 and BDNF system in neuropathic pain with recent data which question such importance. Having read this article, readers will be able to formulate their own opinion on such controversy.
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Gulisano W, Bizzoca A, Gennarini G, Palmeri A, Puzzo D. Role of the adhesion molecule F3/Contactin in synaptic plasticity and memory. Mol Cell Neurosci 2016; 81:64-71. [PMID: 28038945 DOI: 10.1016/j.mcn.2016.12.003] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2016] [Revised: 12/07/2016] [Accepted: 12/22/2016] [Indexed: 12/14/2022] Open
Abstract
Cell adhesion molecules (CAMs) have a pivotal role in building and maintaining synaptic structures during brain development participating in axonal elongation and pathfinding, glial guidance of neuronal migration, as well as myelination. CAMs expression persists in the adult brain particularly in structures undergoing postnatal neurogenesis and involved in synaptic plasticity and memory as the hippocampus. Among the neural CAMs, we have recently focused on F3/Contactin, a glycosylphosphatidyl inositol-anchored glycoprotein belonging to the immunoglobulin superfamily, involved in neuronal development, synaptic maintenance and organization of neuronal networks. Here, we discuss our recent data suggesting that F3/Contactin exerts a role in hippocampal synaptic plasticity and memory in adult and aged mice. In particular, we have studied long-term potentiation (LTP), spatial and object recognition memory, and phosphorylation of the transcription factor cAMP-Responsive-Element Binding protein (CREB) in a transgenic mouse model of F3/Contactin overexpression. We also investigated whether F3/Contactin might influence neuronal apoptosis and the production of amyloid-beta peptide (Aβ), known to be one of the main pathogenetic hallmarks of Alzheimer's disease (AD). In conclusion, a further understanding of F3/Contactin role in synaptic plasticity and memory might have interesting clinical outcomes in cognitive disorders, such as aging and AD, offering innovative therapeutic opportunities.
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Affiliation(s)
- Walter Gulisano
- Section of Physiology, Department of Biomedical and Biotechnological Sciences, University of Catania, Catania, Italy
| | - Antonella Bizzoca
- Section of Physiology, Department of Basic Medical Sciences, Neuroscience and Sensory Organs, University of Bari, Bari, Italy
| | - Gianfranco Gennarini
- Section of Physiology, Department of Basic Medical Sciences, Neuroscience and Sensory Organs, University of Bari, Bari, Italy
| | - Agostino Palmeri
- Section of Physiology, Department of Biomedical and Biotechnological Sciences, University of Catania, Catania, Italy.
| | - Daniela Puzzo
- Section of Physiology, Department of Biomedical and Biotechnological Sciences, University of Catania, Catania, Italy.
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Yayeh T, Yun K, Jang S, Oh S. Morphine dependence is attenuated by red ginseng extract and ginsenosides Rh2, Rg3, and compound K. J Ginseng Res 2016; 40:445-452. [PMID: 27746699 PMCID: PMC5052441 DOI: 10.1016/j.jgr.2016.08.006] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2016] [Revised: 08/09/2016] [Accepted: 08/12/2016] [Indexed: 11/26/2022] Open
Abstract
BACKGROUND Red ginseng and ginsenosides have shown plethoric effects against various ailments. However, little is known regarding the effect of red ginseng on morphine-induced dependence and tolerance. We therefore investigated the effect of red ginseng extract (RGE) and biotransformed ginsenosides Rh2, Rg3, and compound K on morphine-induced dependence in mice and rats. METHODS While mice were pretreated with RGE and then morphine was injected intraperitoneally, rats were infused with ginsenosides and morphine intracranially for 7 days. Naloxone-induced morphine withdrawal syndrome was estimated and conditioned place preference test was performed for physical and psychological dependence, respectively. Western blotting was used to measure protein expressions. RESULTS Whereas RGE inhibited the number of naloxone-precipitated jumps and reduced conditioned place preference score, it restored the level of glutathione in mice. Likewise, ginsenosides Rh2, Rg3, and compound K attenuated morphine-dependent behavioral patterns such as teeth chattering, grooming, wet-dog shake, and escape behavior in rats. Moreover, activated N-methyl-D-aspartate acid receptor subunit 1 and extracellular signal-regulated kinase in the frontal cortex of rats, and cultured cortical neurons from mice were downregulated by ginsenosides Rh2, Rg3, and compound K despite their differential effects. CONCLUSION RGE and biotransformed ginsenosides could be considered as potential therapeutic agents against morphine-induced dependence.
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Affiliation(s)
| | | | | | - Seikwan Oh
- Department of Molecular Medicine, School of Medicine, Ewha Womans University, Seoul, Korea
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Spinal Plasticity and Behavior: BDNF-Induced Neuromodulation in Uninjured and Injured Spinal Cord. Neural Plast 2016; 2016:9857201. [PMID: 27721996 PMCID: PMC5046018 DOI: 10.1155/2016/9857201] [Citation(s) in RCA: 82] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2016] [Revised: 07/27/2016] [Accepted: 08/10/2016] [Indexed: 12/26/2022] Open
Abstract
Brain-derived neurotrophic factor (BDNF) is a member of the neurotrophic factor family of signaling molecules. Since its discovery over three decades ago, BDNF has been identified as an important regulator of neuronal development, synaptic transmission, and cellular and synaptic plasticity and has been shown to function in the formation and maintenance of certain forms of memory. Neural plasticity that underlies learning and memory in the hippocampus shares distinct characteristics with spinal cord nociceptive plasticity. Research examining the role BDNF plays in spinal nociception and pain overwhelmingly suggests that BDNF promotes pronociceptive effects. BDNF induces synaptic facilitation and engages central sensitization-like mechanisms. Also, peripheral injury-induced neuropathic pain is often accompanied with increased spinal expression of BDNF. Research has extended to examine how spinal cord injury (SCI) influences BDNF plasticity and the effects BDNF has on sensory and motor functions after SCI. Functional recovery and adaptive plasticity after SCI are typically associated with upregulation of BDNF. Although neuropathic pain is a common consequence of SCI, the relation between BDNF and pain after SCI remains elusive. This article reviews recent literature and discusses the diverse actions of BDNF. We also highlight similarities and differences in BDNF-induced nociceptive plasticity in naïve and SCI conditions.
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Tannenholz L, Hen R, Kheirbek MA. GluN2B-Containg NMDA Receptors on Adult-Born Granule Cells Contribute to the Antidepressant Action of Fluoxetine. Front Neurosci 2016; 10:242. [PMID: 27303260 PMCID: PMC4885883 DOI: 10.3389/fnins.2016.00242] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2016] [Accepted: 05/17/2016] [Indexed: 01/09/2023] Open
Abstract
Ablation of adult neurogenesis in mice has revealed that young adult-born granule cells (abGCs) are required for some of the behavioral responses to antidepressants (ADs), yet the mechanism by which abGCs contribute to AD action remains unknown. During their maturation process, these immature neurons exhibit unique properties that could underlie their ability to influence behavioral output. In particular, abGCs in the DG exhibit a period of heightened plasticity 4–6 weeks after birth that is mediated by GluN2B-expressing NMDA receptors. The functional contribution of this critical window to AD responsiveness is unclear. Here, we determined the behavioral and neurogenic responses to the AD fluoxetine (FLX) in mice lacking GluN2B-containing NMDA receptors in abGCs. We found that these mice exhibited an attenuated response to FLX in a neurogenesis-dependent behavioral assay of FLX action, while neurogenesis-independent behaviors were unaffected by GluN2B deletion. In addition, deletion of GluN2B attenuated FLX-induced increases in dendritic complexity of abGCs suggesting that the blunted behavioral efficacy of FLX may be caused by impaired differentiation of young abGCs.
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Affiliation(s)
- Lindsay Tannenholz
- Department of Pharmacology, Columbia UniversityNew York, NY, USA; Division of Integrative Neuroscience, New York State Psychiatric InstituteNew York, NY, USA
| | - René Hen
- Department of Pharmacology, Columbia UniversityNew York, NY, USA; Division of Integrative Neuroscience, New York State Psychiatric InstituteNew York, NY, USA; Department of Psychiatry, Columbia UniversityNew York, NY, USA; Department of Neuroscience, Columbia UniversityNew York, NY, USA
| | - Mazen A Kheirbek
- Division of Integrative Neuroscience, New York State Psychiatric InstituteNew York, NY, USA; Department of Psychiatry, Columbia UniversityNew York, NY, USA; Department of Psychiatry, University of CaliforniaSan Francisco, CA, USA
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Abstract
BACKGROUND Reactive oxygen species (ROS) are often associated with persistent pains such as neuropathic and inflammatory pain. Hydrogen gas can reduce ROS and alleviate cerebral, myocardial, and hepatic ischemia/reperfusion injuries. In the present study, we aim to investigate whether hydrogen-rich saline can reduce neuropathic pain in a rat model of chronic constriction injury (CCI). METHODS Thirty SD rats were randomly divided into three groups: sham group was administered sodium chloride by intrathecal injection (n=10); control groups underwent CCI surgery and were administered sodium chloride by intrathecal injection (n=10); vehicle group underwent CCI surgery and was administered hydrogen-rich saline by intrathecal injection (n=10). Drugs were administered in the dose of 100 ul/kg once a day at 0.5 hours before and 1-7 day after CCI surgery. The mechanical thresholds were tested at one day before and 3-14 day after CCI surgery. RESULTS We found that hydrogen-rich saline significantly elevated the mechanical thresholds of neuropathic pain compared to vehicle (physiologic saline) control in CCI rats (p<0.05); it also decreased the levels of myeloperoxidase, maleic dialdehyde, and protein carbonyl in spinal cord by 7 days post-chronic constriction injury(p<0.05). In addition, hydrogen-rich saline also suppressed the expression of p38-mitogen-activated protein kinase (p38MAPK) and brain-derived neurotrophic factor (BDNF) in the spinal cord by 7 days post-chronic constriction injury (p<0.01, p<0.01, respectively), but had no effect on P2X4R (p>0.05), an ATP receptor. CONCLUSION Intrathecal injection of hydrogen-rich saline can decrease oxidative stress and the expression of p38MAPK and BDNF that may contribute to the elevated threshold of neuropathic pain in rat CCI model. Le salin riche en hydrogène atténue la douleur névropathique en réduisant le stress oxydatif.
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Ebajemito JK, Furlan L, Nissen C, Sterr A. Application of Transcranial Direct Current Stimulation in Neurorehabilitation: The Modulatory Effect of Sleep. Front Neurol 2016; 7:54. [PMID: 27092103 PMCID: PMC4822081 DOI: 10.3389/fneur.2016.00054] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2015] [Accepted: 03/24/2016] [Indexed: 12/20/2022] Open
Abstract
The relationship between sleep disorders and neurological disorders is often reciprocal, such that sleep disorders are worsened by neurological symptoms and that neurological disorders are aggravated by poor sleep. Animal and human studies further suggest that sleep disruption not only worsens single neurological symptoms but may also lead to long-term negative outcomes. This suggests that sleep may play a fundamental role in neurorehabilitation and recovery. We further propose that sleep may not only alter the efficacy of behavioral treatments but also plasticity-enhancing adjunctive neurostimulation methods, such as transcranial direct current stimulation (tDCS). At present, sleep receives little attention in the fields of neurorehabilitation and neurostimulation. In this review, we draw together the strands of evidence from both fields of research to highlight the proposition that sleep is an important parameter to consider in the application of tDCS as a primary or adjunct rehabilitation intervention.
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Affiliation(s)
- James K Ebajemito
- School of Psychology, Faculty of Health and Medical Sciences, University of Surrey , Guildford , UK
| | - Leonardo Furlan
- School of Psychology, Faculty of Health and Medical Sciences, University of Surrey , Guildford , UK
| | - Christoph Nissen
- Department of Psychiatry and Psychotherapy, University of Freiburg Medical Center , Freiburg , Germany
| | - Annette Sterr
- School of Psychology, Faculty of Health and Medical Sciences, University of Surrey, Guildford, UK; Department of Neurology, University of São Paulo, São Paulo, Brazil
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Cataldo G, Rajput S, Gupta K, Simone DA. Sensitization of nociceptive spinal neurons contributes to pain in a transgenic model of sickle cell disease. Pain 2015; 156:722-730. [PMID: 25630029 DOI: 10.1097/j.pain.0000000000000104] [Citation(s) in RCA: 79] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Chronic pain is a major characteristic feature of sickle cell disease (SCD). The refractory nature of pain and the development of chronic pain syndromes in many patients with SCD suggest that central neural mechanisms contribute to pain in this disease. We used HbSS-BERK sickle mice, which show chronic features of pain similar to those observed in SCD, and determined whether sensitization of nociceptive neurons in the spinal cord contributes to pain and hyperalgesia in SCD. Electrophysiological recordings of action potential activity were obtained from single identified dorsal horn neurons of the spinal cord in anesthetized mice. Compared with control HbAA-BERK mice, nociceptive dorsal horn neurons in sickle mice exhibited enhanced excitability as evidenced by enlarged receptive fields, increased rate of spontaneous activity, lower mechanical thresholds, enhanced responses to mechanical stimuli, and prolonged afterdischarges following mechanical stimulation. These changes were accompanied by increased phosphorylation of mitogen-activated protein kinases (MAPKs) in the spinal cord that are known to contribute to neuronal hyperexcitability, including c-Jun N-terminal kinase (JNK), p44/p42 extracellular signaling-regulated kinase (ERK), and p38. These findings demonstrate that central sensitization contributes to pain in SCD.
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Affiliation(s)
- Giuseppe Cataldo
- Department of Diagnostic and Biological Sciences, School of Dentistry, University of Minnesota, Minneapolis, MN, USA Division of Hematology, Oncology and Transplantation, Department of Medicine, Vascular Biology Center, University of Minnesota, Minneapolis, MN, USA
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Kang SK, Johnston MV, Kadam SD. Acute TrkB inhibition rescues phenobarbital-resistant seizures in a mouse model of neonatal ischemia. Eur J Neurosci 2015; 42:2792-804. [PMID: 26452067 PMCID: PMC4715496 DOI: 10.1111/ejn.13094] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2015] [Revised: 09/17/2015] [Accepted: 09/29/2015] [Indexed: 02/04/2023]
Abstract
Neonatal seizures are commonly associated with hypoxic-ischemic encephalopathy. Phenobarbital (PB) resistance is common and poses a serious challenge in clinical management. Using a newly characterized neonatal mouse model of ischemic seizures, this study investigated a novel strategy for rescuing PB resistance. A small-molecule TrkB antagonist, ANA12, used to selectively and transiently block post-ischemic BDNF-TrkB signaling in vivo, determined whether rescuing TrkB-mediated post-ischemic degradation of the K(+)-Cl(-) co-transporter (KCC2) rescued PB-resistant seizures. The anti-seizure efficacy of ANA12 + PB was quantified by (i) electrographic seizure burden using acute continuous video-electroencephalograms and (ii) post-treatment expression levels of KCC2 and NKCC1 using Western blot analysis in postnatal day (P)7 and P10 CD1 pups with unilateral carotid ligation. ANA12 significantly rescued PB-resistant seizures at P7 and improved PB efficacy at P10. A single dose of ANA12 + PB prevented the post-ischemic degradation of KCC2 for up to 24 h. As anticipated, ANA12 by itself had no anti-seizure properties and was unable to prevent KCC2 degradation at 24 h without follow-on PB. This indicates that unsubdued seizures can independently lead to KCC2 degradation via non-TrkB-dependent pathways. This study, for the first time as a proof-of-concept, reports the potential therapeutic value of KCC2 modulation for the management of PB-resistant seizures in neonates. Future investigations are required to establish the mechanistic link between ANA12 and the prevention of KCC2 degradation.
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Affiliation(s)
- S K Kang
- Neuroscience Laboratory, Hugo Moser Research Institute at Kennedy Krieger, 716 North Broadway, Baltimore, MD, 21205, USA
| | - M V Johnston
- Neuroscience Laboratory, Hugo Moser Research Institute at Kennedy Krieger, 716 North Broadway, Baltimore, MD, 21205, USA
- Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, MD, 21205, USA
- Department of Pediatrics, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - S D Kadam
- Neuroscience Laboratory, Hugo Moser Research Institute at Kennedy Krieger, 716 North Broadway, Baltimore, MD, 21205, USA
- Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, MD, 21205, USA
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Wang D, Wang P, Jiang J, Lv Q, Zeng X, Hong Y. Activation of Mas Oncogene-Related G Protein–Coupled Receptors Inhibits Neurochemical Alterations in the Spinal Dorsal Horn and Dorsal Root Ganglia Associated with Inflammatory Pain in Rats. J Pharmacol Exp Ther 2015; 354:431-439. [DOI: 10.1124/jpet.115.225672] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/30/2023] Open
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