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Meissner S, Rees S, Nguyen L, Connor B, Barker D, Harland B, Raos B, Svirskis D. Encapsulation of the growth factor neurotrophin-3 in heparinised poloxamer hydrogel stabilises bioactivity and provides sustained release. Biomater Adv 2024; 159:213837. [PMID: 38522310 DOI: 10.1016/j.bioadv.2024.213837] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2024] [Revised: 03/03/2024] [Accepted: 03/19/2024] [Indexed: 03/26/2024]
Abstract
Poloxamer-based hydrogels show promise to stabilise and sustain the delivery of growth factors in tissue engineering applications, such as following spinal cord injury. Typically, growth factors such as neurotrophin-3 (NT-3) degrade rapidly in solution. Similarly, poloxamer hydrogels also degrade readily and are, therefore, only capable of sustaining the release of a payload over a small number of days. In this study, we focused on optimising a hydrogel formulation, incorporating both poloxamer 188 and 407, for the sustained delivery of bioactive NT-3. Hyaluronic acid blended into the hydrogels significantly reduced the degradation of the gel. We identified an optimal hydrogel composition consisting of 20 % w/w poloxamer 407, 5 % w/w poloxamer 188, 0.6 % w/w NaCl, and 1.5 % w/w hyaluronic acid. Heparin was chemically bound to the poloxamer chains to enhance interactions between the hydrogel and the growth factor. The unmodified and heparin-modified hydrogels exhibited sustained release of NT-3 for 28 days while preserving the bioactivity of NT-3. Moreover, these hydrogels demonstrated excellent cytocompatibility and had properties suitable for injection into the intrathecal space, underscoring their suitability as a growth factor delivery system. The findings presented here contribute valuable insights to the development of effective delivery strategies for therapeutic growth factors for tissue engineering approaches, including the treatment of spinal cord injury.
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Affiliation(s)
- Svenja Meissner
- School of Pharmacy, Faculty of Medical and Health Sciences, University of Auckland, Grafton, Auckland 1023, New Zealand
| | - Shaun Rees
- School of Chemical Sciences, University of Auckland, Auckland 1010, New Zealand
| | - Linh Nguyen
- Department of Pharmacology & Clinical Pharmacology, Centre of Brain Research, School of Medical Science, Faculty of Medical and Health Sciences, University of Auckland, Grafton, Auckland 1023, New Zealand
| | - Bronwen Connor
- Department of Pharmacology & Clinical Pharmacology, Centre of Brain Research, School of Medical Science, Faculty of Medical and Health Sciences, University of Auckland, Grafton, Auckland 1023, New Zealand
| | - David Barker
- School of Chemical Sciences, University of Auckland, Auckland 1010, New Zealand
| | - Bruce Harland
- School of Pharmacy, Faculty of Medical and Health Sciences, University of Auckland, Grafton, Auckland 1023, New Zealand
| | - Brad Raos
- School of Pharmacy, Faculty of Medical and Health Sciences, University of Auckland, Grafton, Auckland 1023, New Zealand
| | - Darren Svirskis
- School of Pharmacy, Faculty of Medical and Health Sciences, University of Auckland, Grafton, Auckland 1023, New Zealand.
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Haghighi AH, Shojaee M, Askari R, Abbasian S, Gentil P. The effects of 12 weeks resistance training and vitamin D administration on neuromuscular joint, muscle strength and power in postmenopausal women. Physiol Behav 2024; 274:114419. [PMID: 38036018 DOI: 10.1016/j.physbeh.2023.114419] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2023] [Revised: 11/12/2023] [Accepted: 11/27/2023] [Indexed: 12/02/2023]
Abstract
BACKGROUND This study aimed to examine the effects of 12 weeks of resistance training (RT) and vitamin D (VitD) supplementation on muscle strength and C-terminal agrin fragment (CAF) and Neurotrophin-3 (NT-3) concentrations as potential biomarkers in postmenopausal women. METHODS This was a randomized double-blind placebo-controlled study. Forty-four healthy postmenopausal women (55.84 ± 4.70 years and 29.61 ± 4.26 kg/m2) were randomly assigned into four groups: (1) Resistance training + placebo (RT + PLA), (2) Vitamin D supplementation (VitD), (3) Resistance training + vitamin D (RT + VitD), and (4) Placebo (PLA). VitD was supplemented as an oral capsule containing 50000 IU of cholecalciferol every two weeks. RT involved leg press, chest press, leg extension, leg curl, and shoulder press exercises, performed with 3-4 sets at 70-85 % of 1RM, three times a week. RESULTS Circulating levels of CAF and NT-3 did not significantly change following the intervention period in the study groups (p > 0.05). There were significant increases in upper and lower body muscle strength and power for RT + VitD and RT + PLA ( < 0.05), but not for VitD or PLA (p > 0.05). The muscle function gains for RT + VitD and RT + PLA were higher than those for VitD and PLA but did not differ between them. CONCLUSION 12-week of RT interventions resulted in significant increases in muscle strength and power in postmenopausal women. However, VitD supplementation did not result in any additional benefits. The positive changes in muscle function promoted by RT do not seem to be associated with changes in the neuromuscular joint via the CAF or NT-3 as potential biomarkers.
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Affiliation(s)
- Amir Hossein Haghighi
- Department of Exercise Physiology, Faculty of Sport Sciences, Hakim Sabzevari University, Sabzevar, Iran
| | - Malihe Shojaee
- Department of Exercise Physiology, Faculty of Sport Sciences, Hakim Sabzevari University, Sabzevar, Iran
| | - Roya Askari
- Department of Exercise Physiology, Faculty of Sport Sciences, Hakim Sabzevari University, Sabzevar, Iran
| | - Sadegh Abbasian
- Department of Sport Sciences, Khavaran Institute of Higher Education, Mashhad, Iran
| | - Paulo Gentil
- College of Physical Education and Dance, Federal University of Goias, Brazil.
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Tong L, Ozes B, Moss K, Myers M, Ridgley A, Sahenk Z. AAV1. NT-3 gene therapy in the SOD1KO mouse model of accelerated sarcopenia. J Cachexia Sarcopenia Muscle 2023; 14:2204-2215. [PMID: 37553101 PMCID: PMC10570084 DOI: 10.1002/jcsm.13303] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/11/2023] [Revised: 05/10/2023] [Accepted: 06/16/2023] [Indexed: 08/10/2023] Open
Abstract
BACKGROUND Sarcopenia, an age-related loss of muscle mass, is a critical factor that affects the health of the older adults. The SOD1KO mouse is deficient of Cu/Zn superoxide dismutase, used as an accelerated aging model. We previously showed that NT-3 improves muscle fibre size by activating the mTOR pathway, suggesting a potential for attenuating age-related muscle loss. This study assessed the therapeutic efficacy of AAV1.NT-3 in this accelerated aging model. METHODS Twelve 6 months old SOD1KO mice were injected intramuscularly with a 1 × 1011 vg dose of AAV1.tMCK.NT-3, and 13 age-matched SOD1KO mice were used as controls. The treatment effect was evaluated using treadmill, rotarod and gait analyses as well as histological studies assessing changes in muscle fibre, and fibre type switch, in tibialis anterior, gastrocnemius, and triceps muscles, and myelin thickness by calculating G ratio in sciatic and tibial nerves. Molecular studies involved qPCR experiments to analyse the expression levels of mitochondrial and glycolysis markers and western blot experiments to assess the activity of mTORC1 pathway. RESULTS Treatment resulted in a 36% (154.9 vs. 114.1; P < 0.0001) and 76% increase (154.3 vs. 87.6; P < 0.0001) in meters ran, with treadmill test at 3 and 6 months post gene delivery. In addition, the treated cohort stayed on rotarod 30% (52.7 s vs. 40.4 s; P = 0.0095) and 54% (50.4 s vs. 32.7 s; P = 0.0007) longer, compared with untreated counterparts at 3 and 6 months post injection. Gait analysis, performed at endpoint, showed that stride width was normalized to wild type levels (29.3 mm) by an 11% decrease, compared with untreated cohort (28.6 mm vs. 32.1 mm; P = 0.0014). Compared with wild-type, SOD1KO mice showed 9.4% and 11.4% fibre size decrease in tibialis anterior and gastrocnemius muscles, respectively, which were normalized to wild type levels with treatment. Fibre diameter increase was observed prominently in FTG fibre type. G ratio analysis revealed hypomyelination in the tibial (0.721) and sciatic (0.676) nerves of SOD1KO model, which was reversed in the NT-3 cohort (0.646 and 0.634, respectively). Fibre size increase correlated with the increase in the p-S6 and p-4E-BP1 levels, and in the glycolysis markers in tibialis anterior. Alterations observed in the mitochondrial markers were not rescued with treatment. Overall, response to NT-3 was subdued in gastrocnemius muscle. CONCLUSIONS This study shows that AAV1.NT-3 gene therapy protected SOD1KO mouse from accelerated aging effects functionally and histologically. We further confirmed that NT-3 has potential to activate the mTOR and glycolytic pathways in muscle.
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Affiliation(s)
- Lingying Tong
- Center for Gene TherapyThe Abigail Wexner Research Institute, Nationwide Children's HospitalColumbusOHUSA
| | - Burcak Ozes
- Center for Gene TherapyThe Abigail Wexner Research Institute, Nationwide Children's HospitalColumbusOHUSA
| | - Kyle Moss
- Center for Gene TherapyThe Abigail Wexner Research Institute, Nationwide Children's HospitalColumbusOHUSA
| | - Morgan Myers
- Center for Gene TherapyThe Abigail Wexner Research Institute, Nationwide Children's HospitalColumbusOHUSA
| | - Alicia Ridgley
- Center for Gene TherapyThe Abigail Wexner Research Institute, Nationwide Children's HospitalColumbusOHUSA
| | - Zarife Sahenk
- Center for Gene TherapyThe Abigail Wexner Research Institute, Nationwide Children's HospitalColumbusOHUSA
- Department of Pediatrics and NeurologyNationwide Children's Hospital and The Ohio State UniversityColumbusOHUSA
- Department of Pathology and Laboratory MedicineNationwide Children's HospitalColumbusOHUSA
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Salama A, Elgohary R. Influence of chrysin on D-galactose induced-aging in mice: Up regulation of AMP kinase/liver kinase B1/peroxisome proliferator-activated receptor-γ coactivator 1-α signaling pathway. Fundam Clin Pharmacol 2023; 37:947-959. [PMID: 36977287 DOI: 10.1111/fcp.12895] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2022] [Revised: 02/24/2023] [Accepted: 03/17/2023] [Indexed: 03/30/2023]
Abstract
Adenosine monophosphate kinase/liver kinase B1/peroxisome proliferator-activated receptor-γ coactivator 1-α (AMPK/LKB1/PGC1α) pathway has a vital role in regulating age-related diseases. It controls neurogenesis, cell proliferation, axon outgrowth, and cellular energy homeostasis. AMPK pathway also regulates mitochondrial synthesis. The current study evaluated the effect of chrysin on D-galactose (D-gal) induced-aging, neuron degeneration, mitochondrial dysfunction, oxidative stress, and neuroinflammation in mice. The mice were allocated randomly into four groups (10 each group): Group 1: normal control group, Group 2: D-gal group, Groups 3 and 4: chrysin (125 and 250 mg/kg, respectively). Groups 2-4 were injected with D-gal (200 mg/kg/day; s.c) for 8 weeks to induce aging. Groups 3 and 4 were orally gavaged every day concurrent with D-gal. At the end of experiment, behavioral, brain biochemical and histopathological changes were monitored. Chrysin administration elevated discrimination ratio in object recognition, Y Maze percentage alternation, locomotor activity and brain contents of AMPK, LKB1, PGC1α, NAD (P)H quinone oxidoreductase 1 (NQO1), heme oxygenase 1 (HO-1), nerve growth factor (NGF) (neurotrophin-3; NT-3), and seretonin as well as reduced brain contents of tumor necrosis factor-alpha (TNF-α), nuclear factor kappa B (NF-κB), advanced glycation end products (AGEs) and glial fibrillary acidic protein (GFAP) compared to D-gal-treated mice. Chrysin also alleviated cerebral cortex and white matter neurons degeneration. Chrysin protects against neurodegeneration, improves mitochondrial autophagy and biogenesis as well as activates antioxidant genes expression. In addition, chrysin ameliorates neuroinflammation and stimulates the release of NGF and serotonin neurotransmitter. So, chrysin has a neuroprotective effect in D-gal induced-aging in mice.
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Affiliation(s)
- Abeer Salama
- Pharmacology Department, National Research Centre, El-Buhouth St., Cairo, Dokki, 12622, Egypt
| | - Rania Elgohary
- Narcotics, Ergogenics and Poisons Department, National Research Centre, El-Buhouth St., Cairo, Dokki, 12622, Egypt
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Yagubova SS, Chernyshevskaya MA, Ostrovskaya RU, Gudasheva TA, Seredenin SB. Antidiabetic Effect of a New Original NT-3 Dipeptide Mimetic. DOKL BIOCHEM BIOPHYS 2023; 512:241-244. [PMID: 38093123 DOI: 10.1134/s1607672923700357] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Revised: 05/23/2023] [Accepted: 05/24/2023] [Indexed: 12/18/2023]
Abstract
It was previously established that the original dipeptide mimetic of the 4th loop of NT-3, hexamethylenediamide bis-(N-monosuccinyl-L-asparaginyl-L-asparagine) (GTS-301), has a pronounced neuroprotective effect in vitro at concentrations of 10-5-10-12 М. In the present study, experiments on the streptozotocin-induced diabetes model in C57Bl/6 mice showed that GTS-301, when administered intraperitoneally for 32 days at doses of 0.1 and 0.5 mg/kg, has antidiabetic activity manifested in a reduction of hyperglycemia and polydipsia and in an increase in animal survival. The results obtained confirm the concept of the similarity of neurochemical mechanisms underlying the regulation of functions of neurons and β-cells.
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Affiliation(s)
- S S Yagubova
- Zakusov Research Institute of Pharmacology, Moscow, Russia.
| | | | | | - T A Gudasheva
- Zakusov Research Institute of Pharmacology, Moscow, Russia
| | - S B Seredenin
- Zakusov Research Institute of Pharmacology, Moscow, Russia
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Peng X, Feng S, Zhang P, Sang S, Zhang Y. Analysis of influencing factors of anxiety and depression in maintenance hemodialysis patients and its correlation with BDNF, NT-3 and 5-HT levels. PeerJ 2023; 11:e16068. [PMID: 37750080 PMCID: PMC10518163 DOI: 10.7717/peerj.16068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Accepted: 08/20/2023] [Indexed: 09/27/2023] Open
Abstract
Objective The aim of this study is to examine the factors that contribute to anxiety and depression in individuals undergoing maintenance hemodialysis (MHD), as well as their association with serum levels of brain-derived neurotrophic factor (BDNF), neurotrophin-3 (NT-3), and serotonin (5-HT). Methods In May 2020 and June 2022, 120 MHD patients who received MDH treatment at our hospital were enrolled. The control group was composed of 60 healthy adults (>18) who completed the physical examination at the same time. The serum levels of BDNF, NT-3, and 5-HT in patients and clinical data of MHD patients with different degrees of anxiety and depression were compared. The Pearson correlation was used to evaluate the correlation between anxiety and depression scores and serum BDNF, NT-3,5-HT levels in patients with MHD. Multivariate analysis was employed to analyze the risk factors of anxiety and depression in MHD patients. Results The incidence of anxiety and depression in 120 MHD patients was 34.17% (41/120) and 64.17% (77/120), respectively. The levels of serum NT-3 and 5-HT in the anxiety group were higher than those in the non-anxiety and control group, and the levels of serum NT-3 in the non-anxiety group were higher than those in the control group (P < 0.05). The levels of serum BDNF, NT-3 and 5-HT in the depressed group were higher than those in the non-depressed group and control group, and the levels of serum NT-3 in the non-depressed group were higher than those in the control group (P < 0.05). SAS score was positively correlated with serum NT-3 and 5-HT levels, while the SDS score was negatively correlated with serum BDNF and positively correlated with serum NT-3 and 5-HT levels. Female, rural household registration, and restless leg syndrome were independent risk variables for anxiety in patients with MHD (P < 0.05). Rural household registration, economic deterioration, fatigue, insomnia, and vascular pain were independent variables of depression risk in patients with MHD. Conclusion Anxiety and depression in patients with MHD are closely related to the levels of serum BDNF, NT-3, and 5-HT. Female, rural household registration, more than eight dialysis times/month, insomnia, and restless leg syndrome are the risk factors for anxiety in patients with MHD. Rural household registration, economic deterioration, fatigue, insomnia, and vascular pain are the risk factors for depression in patients with MHD. The clinical implication of these findings suggests that these indexes may perhaps serve as biological indicators of anxiety and depression amongst patients undergoing MHD. Such investigation can hence contribute to early detection, monitoring, and potentially enable the depiction of novel therapeutic strategies for managing these adverse states.
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Affiliation(s)
- Xiaoyan Peng
- Department of Hemodialysis Center, Second Affiliated Hospital of Nantong University (First People’s Hospital), Nantong, China
| | - Sujuan Feng
- Department of Hemodialysis Center, Second Affiliated Hospital of Nantong University (First People’s Hospital), Nantong, China
| | - Poxuan Zhang
- Department of Hemodialysis Center, Second Affiliated Hospital of Nantong University (First People’s Hospital), Nantong, China
| | - Shengmei Sang
- International Guests Ward, Second Affiliated Hospital of Nantong University (First People’s Hospital), Nantong, China
| | - Yi Zhang
- Department of Science and Technology, Second Affiliated Hospital of Nantong University (First People’s Hospital), Nantong, China
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Loch AA, Pinto MTC, Andrade JC, de Jesus LP, de Medeiros MW, Haddad NM, Bilt MTVD, Talib LL, Gattaz WF. Plasma levels of neurotrophin 4/5, NGF and pro-BDNF influence transition to mental disorders in a sample of individuals at ultra-high risk for psychosis. Psychiatry Res 2023; 327:115402. [PMID: 37544089 DOI: 10.1016/j.psychres.2023.115402] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Revised: 06/19/2023] [Accepted: 07/31/2023] [Indexed: 08/08/2023]
Abstract
BACKGROUND Neurotrophins (NTs) and their precursors (pro-NTs) are polypeptides with important roles in neuronal development, differentiation, growth, survival and plasticity, as well as apoptosis and neuronal death. Imbalance in NT levels were observed in schizophrenia spectrum disorders, but evidence in ultra-high risk for psychosis (UHR) samples is scarce. METHODS A naturalistic sample of 87 non-help-seeking UHR subjects and 55 healthy controls was drawn from the general population. Blood samples were collected and NT-3, NT-4/5, BDNF, pro-BDNF, NGF, pro-NGF were analyzed through enzyme linked immunosorbent assay (ELISA). Information on cannabis and tobacco use was also collected. Logistic regression models and path analysis were used to control for confounders (tobacco, age, cannabis use). RESULTS NT-4/5 was significantly decreased, and pro-BDNF was significantly increased in UHR individuals compared to controls. Cannabis use and higher NGF levels were significantly related to transition to psychiatric disorders among UHR subjects. Increased pro-BDNF and decreased NT-4/5 influenced transition by the mediation of perceptual abnormalities. CONCLUSIONS Our study shows for the first time that NTs are altered in UHR compared to healthy control individuals, and that they can be a predictor of transition to psychiatric illnesses in this population. Future studies should employ larger naturalistic samples to confirm the findings.
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Affiliation(s)
- Alexandre Andrade Loch
- Laboratório de Neurociencias (LIM 27), Instituto de Psiquiatria, Hospital das Clínicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, SP, BR; Instituto Nacional de Biomarcadores em Neuropsiquiatria (INBION), Conselho Nacional de Desenvolvimento Científico e Tecnológico, Brazil.
| | - Marcel Tavares Camilo Pinto
- Laboratório de Neurociencias (LIM 27), Instituto de Psiquiatria, Hospital das Clínicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, SP, BR
| | - Julio Cesar Andrade
- Laboratório de Neurociencias (LIM 27), Instituto de Psiquiatria, Hospital das Clínicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, SP, BR
| | - Leonardo Peroni de Jesus
- Laboratório de Neurociencias (LIM 27), Instituto de Psiquiatria, Hospital das Clínicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, SP, BR
| | - Matheus Wanderley de Medeiros
- Laboratório de Neurociencias (LIM 27), Instituto de Psiquiatria, Hospital das Clínicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, SP, BR
| | - Natalia Mansur Haddad
- Laboratório de Neurociencias (LIM 27), Instituto de Psiquiatria, Hospital das Clínicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, SP, BR
| | - Martinus Theodorus van de Bilt
- Laboratório de Neurociencias (LIM 27), Instituto de Psiquiatria, Hospital das Clínicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, SP, BR; Instituto Nacional de Biomarcadores em Neuropsiquiatria (INBION), Conselho Nacional de Desenvolvimento Científico e Tecnológico, Brazil
| | - Leda Leme Talib
- Laboratório de Neurociencias (LIM 27), Instituto de Psiquiatria, Hospital das Clínicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, SP, BR; Instituto Nacional de Biomarcadores em Neuropsiquiatria (INBION), Conselho Nacional de Desenvolvimento Científico e Tecnológico, Brazil
| | - Wagner Farid Gattaz
- Laboratório de Neurociencias (LIM 27), Instituto de Psiquiatria, Hospital das Clínicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, SP, BR; Instituto Nacional de Biomarcadores em Neuropsiquiatria (INBION), Conselho Nacional de Desenvolvimento Científico e Tecnológico, Brazil
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Kasakura N, Murata Y, Shindo A, Kitaoka S, Furuyashiki T, Suzuki K, Segi-Nishida E. Overexpression of NT-3 in the hippocampus suppresses the early phase of the adult neurogenic process. Front Neurosci 2023; 17:1178555. [PMID: 37575306 PMCID: PMC10413268 DOI: 10.3389/fnins.2023.1178555] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Accepted: 07/13/2023] [Indexed: 08/15/2023] Open
Abstract
The dentate gyrus (DG) of the hippocampus regulates stress-related emotional behaviors and ensures neurogenesis throughout life. Neurotrophin-3 (NT-3) is a neurotrophic factor that regulates neuronal differentiation, survival, and synaptic formation in both the peripheral and central nervous systems. NT-3 is expressed in the adult DG of the hippocampus; several chronic stress conditions enhance NT-3 expression in rodents. However, functional modulation of the adult DG by NT-3 signaling remains unclear. To directly investigate the impact of NT-3 on DG function, NT-3 was overexpressed in the hippocampal ventral DG by an adeno-associated virus carrying NT-3 (AAV-NT-3). Four weeks following the AAV-NT-3 injection, high NT-3 expression was observed in the ventral DG. We examined the influence of NT-3 overexpression on the neuronal responses and neurogenic processes in the ventral DG. NT-3 overexpression significantly increased the expression of the mature DG neuronal marker calbindin and immediate early genes, such as Fos and Fosb, thereby suggesting DG neuronal activation. During neurogenesis, the number of proliferating cells and immature neurons in the subgranular zone of the DG significantly decreased in the AAV-NT-3 group. Among the neurogenesis-related factors, Vegfd, Lgr6, Bmp7, and Drd1 expression significantly decreased. These results demonstrated that high NT-3 levels in the hippocampus regulate the activation of mature DG neurons and suppress the early phase of neurogenic processes, suggesting a possible role of NT-3 in the regulation of adult hippocampal function under stress conditions.
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Affiliation(s)
- Nanami Kasakura
- Department of Biological Science and Technology, Faculty of Advanced Engineering, Tokyo University of Science, Tokyo, Japan
| | - Yuka Murata
- Department of Biological Science and Technology, Faculty of Advanced Engineering, Tokyo University of Science, Tokyo, Japan
| | - Asuka Shindo
- Department of Biological Science and Technology, Faculty of Advanced Engineering, Tokyo University of Science, Tokyo, Japan
| | - Shiho Kitaoka
- Department of Pharmacology, School of Medicine, Hyogo Medical University, Hyogo, Japan
| | - Tomoyuki Furuyashiki
- Division of Pharmacology, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Kanzo Suzuki
- Department of Biological Science and Technology, Faculty of Advanced Engineering, Tokyo University of Science, Tokyo, Japan
| | - Eri Segi-Nishida
- Department of Biological Science and Technology, Faculty of Advanced Engineering, Tokyo University of Science, Tokyo, Japan
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Chen T, He X, Wang J, Du D, Xu Y. NT-3 Combined with TGF-β Signaling Pathway Enhance the Repair of Spinal Cord Injury by Inhibiting Glial Scar Formation and Promoting Axonal Regeneration. Mol Biotechnol 2023:10.1007/s12033-023-00781-4. [PMID: 37318740 DOI: 10.1007/s12033-023-00781-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2023] [Accepted: 05/24/2023] [Indexed: 06/16/2023]
Abstract
This study investigated the mechanism of neurotrophin-3 (NT-3) in promoting spinal cord injury repair through the transforming growth factor-beta (TGF-β) signaling pathway. A mouse model of spinal cord injury was established. Forty C57BL/6J mice were randomized into model, NT-3, NT-3 + TGF-β1 and NT-3 + LY364947 groups. The Basso-Beattie-Bresnahan (BBB) scores of the NT-3 and NT-3 + LY364947 groups were significantly higher than the model group. The BBB score of the NT-3 + TGF-β1 group was significantly lower than NT-3 group. Hematoxylin-eosin staining and transmission electron microscopy showed reduction in myelin sheath injury, more myelinated nerve fibers in the middle section of the catheter, and relatively higher density and more neatly arranged regenerated axons in the NT-3 and NT-3 + LY364947 groups compared with the model and NT-3 + TGF-β1 groups. Immunofluorescence, TUNEL and Western blot analysis showed that compared with model group, the NEUN expression increased, and the apoptosis and Col IV, LN, CSPG, tenascin-C, Sema 3 A, EphB2 and Smad2/3 protein expression decreased significantly in the NT-3 and NT-3 + LY364947 groups; the condition was reversed in the NT-3 + TGF-β1 group compared with the NT-3 group. NT-3 combined with TGF-β signaling pathway promotes astrocyte differentiation, reduces axon regeneration inhibitory molecules, apoptosis and glial scar formation, promotes axon regeneration, and improves spinal cord injury.
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Affiliation(s)
- Taibang Chen
- Department of Orthopedics, No. 920 Hospital of PLA Joint Logistics Support Force, No. 212 Daguanlu, Kunming, Yunnan, 650000, China.
| | - Xiaoqing He
- Department of Orthopedics, No. 920 Hospital of PLA Joint Logistics Support Force, No. 212 Daguanlu, Kunming, Yunnan, 650000, China
| | - Jing Wang
- Department of Orthopedics, No. 920 Hospital of PLA Joint Logistics Support Force, No. 212 Daguanlu, Kunming, Yunnan, 650000, China
| | - Di Du
- Department of Orthopedics, No. 920 Hospital of PLA Joint Logistics Support Force, No. 212 Daguanlu, Kunming, Yunnan, 650000, China
| | - Yongqing Xu
- Department of Orthopedics, No. 920 Hospital of PLA Joint Logistics Support Force, No. 212 Daguanlu, Kunming, Yunnan, 650000, China.
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Dousti Kataj P, Vousooghi N, Hadjighassem M, Farahmandfar M, Ebrahimi-Barough S. Evaluation of the effect of mesenchymal stem cells injection in the nucleus accumbens on the morphine reinstatement behavior in a conditioned place preference model in Wistar rat: Expression changes of NMDA receptor subunits and NT-3. Behav Brain Res 2023; 444:114360. [PMID: 36854364 DOI: 10.1016/j.bbr.2023.114360] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2022] [Revised: 01/31/2023] [Accepted: 02/21/2023] [Indexed: 02/27/2023]
Abstract
Mesenchymal stem cells (MSCs) have been recently shown to improve functional recovery in animal models of CNS disorders and are currently being examined in clinical studies for sclerosis, stroke, and CNS lesions. The activation of endogenous CNS protection and repair mechanisms is unclear. MSC-based approaches are considered a new potential target for neurodegenerative disorders. This study was designed to discover the effect of MSCs injection in the nucleus accumbens (NAc) on the reinstatement of behavior in morphine-induced conditioned place preference (CPP) in male rats. The CPP was induced via intra-peritoneal (i.p.) morphine injection (5 mg/kg) for three consecutive days. After being tested for CPP induction, animals received MSCs or culture medium (DMEM F-12) in their NAc using stereotaxic surgery. Following extinction, a priming dose of morphine (2 mg/kg) was administered to induce reinstatement. Expression of GluN1, GluN2A, and GluN2B subunits of the NMDA receptor and the NT-3 gene in the NAc was assessed on the last day of extinction and following CPP reinstatement. The results showed that local injection of MSCs attenuated reinstatement after receiving a priming dose of morphine, and also shortened the period of CPP extinction. The mRNA expression of the NT-3 gene in the group receiving MSCs was increased compared to control animals, as was observed for GluN1 and GluN2B, but not GluN2A. It is concluded that intra-NAc injection of MSCs may facilitate morphine extinction and alleviate reinstatement behavior which may be via expression changes in NMDA receptor subunits and NT-3 gene.
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Affiliation(s)
- Parviz Dousti Kataj
- Department of Neuroscience and Addiction Studies, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran, the Islamic Republic of Iran
| | - Nasim Vousooghi
- Department of Applied Cell Sciences, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran, the Islamic Republic of Iran; Research Center for Cognitive and Behavioral Sciences, Tehran University of Medical Sciences, Tehran, the Islamic Republic of Iran; Iranian National Center for Addiction Studies, Tehran University of Medical Sciences, Tehran, the Islamic Republic of Iran.
| | - Mahmoudreza Hadjighassem
- Brain and Spinal Cord Injury Research Center, Tehran University of Medical Sciences, Tehran, the Islamic Republic of Iran
| | - Maryam Farahmandfar
- Department of Neuroscience and Addiction Studies, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran, the Islamic Republic of Iran
| | - Somayeh Ebrahimi-Barough
- Department of Tissue Engineering and Applied Cell Sciences, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran, the Islamic Republic of Iran
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Charalampopoulou A, Barcellini A, Frittitta GE, Fulgini G, Ivaldi GB, Magro G, Liotta M, Orlandi E, Pullia MG, Tabarelli de Fatis P, Facoetti A. In Vitro Effects of Photon Beam and Carbon Ion Radiotherapy on the Perineural Invasion of Two Cell Lines of Neurotropic Tumours. Life (Basel) 2023; 13:794. [PMID: 36983949 PMCID: PMC10056732 DOI: 10.3390/life13030794] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Revised: 02/16/2023] [Accepted: 03/13/2023] [Indexed: 03/17/2023] Open
Abstract
Primary mucosal melanoma (PMM) and pancreatic ductal adenocarcinoma (PDAC) are two aggressive malignancies, characterized by intrinsic radio-chemoresistance and neurotropism, a histological feature resulting in frequent perineural invasion (PNI), supported by neurotrophic factors secreted in the tumour microenvironment (TME), such as neurotrophin-3 (NT-3). Carbon-ion radiotherapy (CIRT) could represent an effective option in unresectable PMM and PDAC. Only a few data about the effects of CIRT on PNI in relation to NT-3 are available in the literature, despite the numerous pieces of evidence revealing the peculiar effects of this type of radiation on tumour cell migration. This in vitro study investigated for the first time the response of PMM and PDAC cells to NT-3 and evaluated the effects of conventional photon beam radiotherapy (XRT) and CIRT on cell viability, proliferation, and migration. Our results demonstrated the greater capacity of C-ions to generally decrease cell viability, proliferation, and migration, while the addition of NT-3 after both types of irradiation determined an increase in these features, maintaining a dose-dependent trend and acting more effectively as a chemoattractant than inductor in the case of migration.
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Affiliation(s)
- Alexandra Charalampopoulou
- Radiobiology Unit, Research and Development Department, CNAO National Center for Oncological Hadrontherapy, 27100 Pavia, Italy
- Hadron Academy PhD Course, Istituto Universitario di STUDI Superiori (IUSS), 27100 Pavia, Italy
| | - Amelia Barcellini
- Radiation Oncology Unit, Clinical Department, CNAO National Center for Oncological Hadrontherapy, 27100 Pavia, Italy
- Department of Internal Medicine and Medical Therapy, University of Pavia, 27100 Pavia, Italy
| | - Giuseppe Emanuele Frittitta
- Radiobiology Unit, Research and Development Department, CNAO National Center for Oncological Hadrontherapy, 27100 Pavia, Italy
- Biology and Biotechnology Department, University of Pavia, 27100 Pavia, Italy
| | - Giorgia Fulgini
- Radiobiology Unit, Research and Development Department, CNAO National Center for Oncological Hadrontherapy, 27100 Pavia, Italy
- Biology and Biotechnology Department, University of Pavia, 27100 Pavia, Italy
| | | | - Giuseppe Magro
- Medical Physics Unit, Clinical Department, CNAO National Center for Oncological Hadrontherapy, 27100 Pavia, Italy
| | - Marco Liotta
- Medical Physics Unit, Istituti Clinici Scientifici Maugeri IRCCS, 27100 Pavia, Italy
| | - Ester Orlandi
- Radiation Oncology Unit, Clinical Department, CNAO National Center for Oncological Hadrontherapy, 27100 Pavia, Italy
| | - Marco Giuseppe Pullia
- Physics Unit, Research and Development Department, CNAO National Center for Oncological Hadrontherapy, 27100 Pavia, Italy
| | | | - Angelica Facoetti
- Radiobiology Unit, Research and Development Department, CNAO National Center for Oncological Hadrontherapy, 27100 Pavia, Italy
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Ozes B, Tong L, Myers M, Moss K, Ridgley A, Sahenk Z. AAV1. NT-3 gene therapy prevents age-related sarcopenia. Aging (Albany NY) 2023; 15:1306-1329. [PMID: 36897179 PMCID: PMC10042697 DOI: 10.18632/aging.204577] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2022] [Accepted: 03/02/2023] [Indexed: 03/11/2023]
Abstract
Sarcopenia is progressive loss of muscle mass and strength, occurring during normal aging with significant consequences on the quality of life for elderly. Neurotrophin 3 (NT-3) is an important autocrine factor supporting Schwann cell survival and differentiation and stimulating axon regeneration and myelination. NT-3 is involved in the maintenance of neuromuscular junction (NMJ) integrity, restoration of impaired radial growth of muscle fibers through activation of the Akt/mTOR pathway. We tested the efficacy of NT-3 gene transfer therapy in wild type (WT)-aged C57BL/6 mice, a model for natural aging and sarcopenia, via intramuscular injection 1 × 1011 vg AAV1.tMCK.NT-3, at 18 months of age. The treatment efficacy was assessed at 6 months post-injection using run to exhaustion and rotarod tests, in vivo muscle contractility assay, and histopathological studies of the peripheral nervous system, including NMJ connectivity and muscle. AAV1.NT-3 gene therapy in WT-aged C57BL/6 mice resulted in functional and in vivo muscle physiology improvements, supported by quantitative histology from muscle, peripheral nerves and NMJ. Hindlimb and forelimb muscles in the untreated cohort showed the presence of a muscle- and sex-dependent remodeling and fiber size decrease with aging, which was normalized toward values obtained from 10 months old WT mice with treatment. The molecular studies assessing the NT-3 effect on the oxidative state of distal hindlimb muscles, accompanied by western blot analyses for mTORC1 activation were in accordance with the histological findings. Considering the cost and quality of life to the individual, we believe our study has important implications for management of age-related sarcopenia.
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Affiliation(s)
- Burcak Ozes
- Center for Gene Therapy, The Abigail Wexner Research Institute, Nationwide Children’s Hospital, Columbus, OH 43205, USA
| | - Lingying Tong
- Center for Gene Therapy, The Abigail Wexner Research Institute, Nationwide Children’s Hospital, Columbus, OH 43205, USA
| | - Morgan Myers
- Center for Gene Therapy, The Abigail Wexner Research Institute, Nationwide Children’s Hospital, Columbus, OH 43205, USA
| | - Kyle Moss
- Center for Gene Therapy, The Abigail Wexner Research Institute, Nationwide Children’s Hospital, Columbus, OH 43205, USA
| | - Alicia Ridgley
- Center for Gene Therapy, The Abigail Wexner Research Institute, Nationwide Children’s Hospital, Columbus, OH 43205, USA
| | - Zarife Sahenk
- Center for Gene Therapy, The Abigail Wexner Research Institute, Nationwide Children’s Hospital, Columbus, OH 43205, USA
- Department of Pediatrics and Neurology, Nationwide Children’s Hospital and The Ohio State University, Columbus, OH 43205, USA
- Department of Pathology and Laboratory Medicine, Nationwide Children’s Hospital, Columbus, OH 43205, USA
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Ungefroren H, Künstner A, Busch H, Franzenburg S, Luley K, Viol F, Schrader J, Konukiewitz B, Wellner UF, Meyhöfer SM, Keck T, Marquardt JU, Lehnert H. Differential Effects of Somatostatin, Octreotide, and Lanreotide on Neuroendocrine Differentiation and Proliferation in Established and Primary NET Cell Lines: Possible Crosstalk with TGF-β Signaling. Int J Mol Sci 2022; 23:ijms232415868. [PMID: 36555512 PMCID: PMC9781720 DOI: 10.3390/ijms232415868] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Revised: 12/10/2022] [Accepted: 12/12/2022] [Indexed: 12/15/2022] Open
Abstract
GEP-NETs are heterogeneous tumors originating from the pancreas (panNET) or the intestinal tract. Only a few patients with NETs are amenable to curative tumor resection, and for most patients, only palliative treatments to successfully control the disease or manage symptoms remain, such as with synthetic somatostatin (SST) analogs (SSAs), such as octreotide (OCT) or lanreotide (LAN). However, even cells expressing low levels of SST receptors (SSTRs) may exhibit significant responses to OCT, which suggests the possibility that SSAs signal through alternative mechanisms, e.g., transforming growth factor (TGF)-β. This signaling mode has been demonstrated in the established panNET line BON but not yet in other permanent (i.e., QGP) or primary (i.e., NT-3) panNET-derived cells. Here, we performed qPCR, immunoblot analyses, and cell counting assays to assess the effects of SST, OCT, LAN, and TGF-β1 on neuroendocrine marker expression and cell proliferation in NT-3, QGP, and BON cells. SST and SSAs were found to regulate a set of neuroendocrine genes in all three cell lines, with the effects of SST, mainly LAN, often differing from those of OCT. However, unlike NT-3 cells, BON cells failed to respond to OCT with growth arrest but paradoxically exhibited a growth-stimulatory effect after treatment with LAN. As previously shown for BON, NT-3 cells responded to TGF-β1 treatment with induction of expression of SST and SSTR2/5. Of note, the ability of NT-3 cells to respond to TGF-β1 with upregulation of the established TGF-β target gene SERPINE1 depended on cellular adherence to a collagen-coated matrix. Moreover, when applied to NT-3 cells for an extended period, i.e., 14 days, TGF-β1 induced growth suppression as shown earlier for BON cells. Finally, next-generation sequencing-based identification of microRNAs (miRNAs) in BON and NT-3 revealed that SST and OCT impact positively or negatively on the regulation of specific miRNAs. Our results suggest that primary panNET cells, such as NT-3, respond similarly as BON cells to SST, SSA, and TGF-β treatment and thus provide circumstantial evidence that crosstalk of SST and TGF-β signaling is not confined to BON cells but is a general feature of panNETs.
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Affiliation(s)
- Hendrik Ungefroren
- First Department of Medicine, University Hospital Schleswig-Holstein (UKSH), Campus Lübeck, D-23538 Lübeck, Germany
- Institute of Pathology, University Hospital Schleswig-Holstein (UKSH), Campus Kiel, D-24105 Kiel, Germany
- Correspondence:
| | - Axel Künstner
- Medical Systems Biology Group, Lübeck Institute of Experimental Dermatology, University of Lübeck, D-23538 Lübeck, Germany
- Institute for Cardiogenetics, University of Lübeck, D-23538 Lübeck, Germany
| | - Hauke Busch
- Medical Systems Biology Group, Lübeck Institute of Experimental Dermatology, University of Lübeck, D-23538 Lübeck, Germany
- Institute for Cardiogenetics, University of Lübeck, D-23538 Lübeck, Germany
| | - Sören Franzenburg
- Institute for Clinical Molecular Biology, University of Kiel, D-24118 Kiel, Germany
| | - Kim Luley
- Clinic of Oncology, University Hospital Schleswig-Holstein (UKSH), Campus Lübeck, D-23538 Lübeck, Germany
| | - Fabrice Viol
- Medical Clinic and Policlinic, University Hospital Hamburg-Eppendorf, D-20251 Hamburg, Germany
| | - Jörg Schrader
- Medical Clinic and Policlinic, University Hospital Hamburg-Eppendorf, D-20251 Hamburg, Germany
| | - Björn Konukiewitz
- Institute of Pathology, University Hospital Schleswig-Holstein (UKSH), Campus Kiel, D-24105 Kiel, Germany
| | - Ulrich F. Wellner
- Department of Surgery, University Hospital Schleswig-Holstein (UKSH), Campus Lübeck, D-23538 Lübeck, Germany
| | - Sebastian M. Meyhöfer
- Institute of Endocrinology and Diabetes, University of Lübeck, D-23538 Lübeck, Germany
- German Center of Diabetes Research, D-85764 Neuherberg, Germany
| | - Tobias Keck
- Department of Surgery, University Hospital Schleswig-Holstein (UKSH), Campus Lübeck, D-23538 Lübeck, Germany
| | - Jens-Uwe Marquardt
- First Department of Medicine, University Hospital Schleswig-Holstein (UKSH), Campus Lübeck, D-23538 Lübeck, Germany
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Chen F, Zhang Z, Wang LN, Yang X, Zhou CG, Zhu C, Wang L, Liu LM, Song YM. Transplantation of NEP1-40 and NT-3 Gene-Co-Transduced Neural Stem Cells Improves Function and Neurogenesis after Spinal Cord Injury in a Rat Model. Neurol India 2022; 70:S251-S258. [PMID: 36412377 DOI: 10.4103/0028-3886.360942] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
BACKGROUND Spinal cord injury (SCI) generally results in necrosis, scarring, cavitation, and a release of inhibitory molecules of the nervous system, which lead to disruption of neurotransmission and impede nerve fiber regeneration. This study was intended to evaluate the therapeutic efficacy rates of the transplantation of NEP1-40- and NT-3 gene-co-transduced neural stem cells (NSCs) in a rat model of SCI. METHODS Ninety Sprague-Dawley rats were subdivided randomly into six groups: sham-operated, SCI model, SCI + NSCs-NC, SCI + NEP1-40-NSCs, SCI + NT-3-NSCs, and SCI + NEP1-40/NT-3-NSCs. Motor function at different time points was evaluated using the Basso, Beattie, and Bresnahan locomotor activity scoring system (BBB). At 8 weeks post-transplantation, histological analysis, a terminal deoxynucleotidyl transferase-mediated dUTP nick-end labeling (TUNEL) assay, immunofluorescent assay, immunocytochemical staining, and cholera toxin subunit B (CTB) retrograde tracing were performed. RESULTS BBB scores of the co-transduction group significantly surpassed those of other transplantation groups and of the SCI-model group after 2 weeks post-transplantation. The apoptotic rate of neurocytes was significantly lower in the co-transduction group than in other experimental groups. Expression of NF-200, MBP, and ChAT was significantly higher in the SCI + NEP1-40/NT-3-NSCs group than in other transplantation groups, whereas the expression of GFAP and GAD67 was the second lowest after the sham-operated group. CTB retrograde tracing showed that CTB-positive neural fibers on the caudal side of the hemisected site were more numerous in the SCI + NEP1-40/NT-3-NSCs group than in other experimental groups. CONCLUSION Transplantation of NEP1-40- and NT-3-gene-co-transduced NSCs can modify the protein expression following acute SCI and promote neuron formation and axonal regeneration, thus having a neuroprotective effect. Furthermore, this effect surpasses that of transplantation of single-gene-transduced NSCs. Transplantation of NEP1-40- and NT-3-gene-co-transduced NSCs is effective at the neural recovery of the rat model of SCI and may be a novel strategy for clinical treatment of SCI.
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Affiliation(s)
- Feng Chen
- Department of Orthopedic Surgery and Orthopedic Research Institute, West China Hospital, Sichuan University, No. 37, Guoxue Road, Chengdu, Sichuan 610041, People's Republic of China
| | - Zhuang Zhang
- Department of Orthopedic Surgery and Orthopedic Research Institute, West China Hospital, Sichuan University, No. 37, Guoxue Road, Chengdu, Sichuan 610041, People's Republic of China
| | - Lin-Nan Wang
- Department of Orthopedic Surgery and Orthopedic Research Institute, West China Hospital, Sichuan University, No. 37, Guoxue Road, Chengdu, Sichuan 610041, People's Republic of China
| | - Xi Yang
- Department of Orthopedic Surgery and Orthopedic Research Institute, West China Hospital, Sichuan University, No. 37, Guoxue Road, Chengdu, Sichuan 610041, People's Republic of China
| | - Chun-Guang Zhou
- Department of Orthopedic Surgery and Orthopedic Research Institute, West China Hospital, Sichuan University, No. 37, Guoxue Road, Chengdu, Sichuan 610041, People's Republic of China
| | - Ce Zhu
- Department of Orthopedic Surgery and Orthopedic Research Institute, West China Hospital, Sichuan University, No. 37, Guoxue Road, Chengdu, Sichuan 610041, People's Republic of China
| | - Lei Wang
- Department of Orthopedic Surgery and Orthopedic Research Institute, West China Hospital, Sichuan University, No. 37, Guoxue Road, Chengdu, Sichuan 610041, People's Republic of China
| | - Li-Min Liu
- Department of Orthopedic Surgery and Orthopedic Research Institute, West China Hospital, Sichuan University, No. 37, Guoxue Road, Chengdu, Sichuan 610041, People's Republic of China
| | - Yue-Ming Song
- Department of Orthopedic Surgery and Orthopedic Research Institute, West China Hospital, Sichuan University, No. 37, Guoxue Road, Chengdu, Sichuan 610041, People's Republic of China
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Cui Z, Liao K, Li S, Gu J, Wang Y, Ding C, Guo Y, Chan HF, Ma JH, Tang S, Chen J. LM22B-10 promotes corneal nerve regeneration through in vitro 3D co-culture model and in vivo corneal injury model. Acta Biomater 2022; 146:159-176. [PMID: 35562005 DOI: 10.1016/j.actbio.2022.05.010] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Revised: 04/21/2022] [Accepted: 05/05/2022] [Indexed: 11/01/2022]
Abstract
Corneal nerve wounding often causes abnormalities in the cornea and even blindness in severe cases. In this study, we construct a dorsal root ganglion-corneal stromal cell (DRG-CSC, DS) co-culture 3D model to explore the mechanism of corneal nerve regeneration. Firstly, this model consists of DRG collagen grafts sandwiched by orthogonally stacked and orderly arranged CSC-laden plastic compressed collagen. Nerve bundles extend into the entire corneal stroma within 14 days, and they also have orthogonal patterns. This nerve prevents CSCs from apoptosis in the serum withdrawal medium. The conditioned medium (CM) for CSCs in collagen scaffolds contains NT-3, IL-6, and other factors. Among them, NT-3 notably promotes the activation of ERK-CREB in the DRG, leading to the growth of nerve bundles, and IL-6 induces the upregulation of anti-apoptotic genes. Then, LM22B-10, an activator of the NT-3 receptor TrkB/TrkC, can also activate ERK-CREB to enhance nerve growth. After administering LM22B-10 eye drops to regular and diabetic mice with corneal wounding, LM22B-10 significantly improves the healing speed of the corneal epithelium, corneal sensitivity, and corneal nerve density. Overall, the DS co-culture model provides a promising platform and tools for the exploration of corneal physiological and pathological mechanisms, as well as the verification of drug effects in vitro. Meanwhile, we confirm that LM22B-10, as a non-peptide small molecule, has future potential in nerve wound repair. STATEMENT OF SIGNIFICANCE: The cornea accounts for most of the refractive power of the eye. Corneal nerves play an important role in maintaining corneal homeostasis. Once the corneal nerves are damaged, the corneal epithelium and stroma develop lesions. However, the mechanism of the interaction between corneal nerves and corneal cells is still not fully understood. Here, we construct a corneal stroma-nerve co-culture in vitro model and reveal that NT-3 expressed by stromal cells promotes nerve growth by activating the ERK-CREB pathway in nerves. LM22B-10, an activator of NT-3 receptors, can also induce nerve growth in vitro. Moreover, it is used as eye drops to enhance corneal epithelial wound healing, corneal nerve sensitivity and density of nerve plexus in corneal nerve wounding model in vivo.
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Talifu Z, Qin C, Xin Z, Chen Y, Liu J, Dangol S, Ma X, Gong H, Pei Z, Yu Y, Li J, Du L. The Overexpression of Insulin-Like Growth Factor-1 and Neurotrophin-3 Promote Functional Recovery and Alleviate Spasticity After Spinal Cord Injury. Front Neurosci 2022; 16:863793. [PMID: 35573286 PMCID: PMC9099063 DOI: 10.3389/fnins.2022.863793] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Accepted: 03/30/2022] [Indexed: 11/22/2022] Open
Abstract
Objective This study was conducted to investigate the effects of the exogenous overexpression of nerve growth factors NT-3 and IGF-1 on the recovery of nerve function after spinal cord injury (SCI) and identify the potential mechanism involved. Methods Sixty-four female SD rats were randomly divided into four groups: an SCI group, an adeno-associated viral (AAV)-RFP and AAV-GFP injection group, an AAV-IGF-1 and AAV-NT-3 injection group, and a Sham group. After grouping, the rats were subjected to a 10-week electrophysiological and behavioral evaluation to comprehensively evaluate the effects of the intervention on motor function, spasticity, mechanical pain, and thermal pain. Ten weeks later, samples were taken for immunofluorescence (IF) staining and Western blot (WB) detection, focusing on the expression of KCC2, 5-HT2A, and 5-HT2C receptors in motor neurons and the spinal cord. Results Electrophysiological and behavioral data indicated that the AAV-IGF-1 and AAV-NT-3 groups showed better recovery of motor function (P < 0.05 from D14 compared with the AAV-RFP + AAV-GFP group; P < 0.05 from D42 compared with SCI group) and less spasticity (4-10 weeks, at 5 Hz all P < 0.05 compared with SCI group and AAV- RFP + AAV-GFP group) but with a trend for more pain sensitivity. Compared with the SCI group, the von Frey value result of the AAV-IGF-1 and AAV-NT-3 groups showed a lower pain threshold (P < 0.05 at 4-8 weeks), and shorter thermal pain threshold (P < 0.05 at 8-10 weeks). IF staining further suggested that compared with the SCI group, the overexpression of NT-3 and IGF-1 in the SCI-R + G group led to increased levels of KCC2 (p < 0.05), 5-HT2A (p < 0.05), and 5-HT2C (p < 0.001) in motor neurons. WB results showed that compared with the SCI group, the SCI-R + G group exhibited higher expression levels of CHAT (p < 0.01), 5-HT2A (p < 0.05), and 5-HT2C (p < 0.05) proteins in the L2-L6 lumbar enlargement. Conclusion Data analysis showed that the overexpression of NT-3 and IGF-1 may improve motor function after SCI and alleviate spasms in a rat model; however, these animals were more sensitive to mechanical pain and thermal pain. These behavioral changes may be related to increased numbers of KCC2, 5-HT2A, and 5-HT2C receptors in the spinal cord tissue. The results of this study may provide a new theoretical basis for the clinical treatment of SCI.
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Affiliation(s)
- Zuliyaer Talifu
- School of Rehabilitation, Capital Medical University, Beijing, China
- Department of Spinal and Neural Functional Reconstruction, China Rehabilitation Research Center, Beijing, China
- Chinese Institute of Rehabilitation Science, Beijing, China
- Center of Neural Injury and Repair, Beijing Institute for Brain Disorders, Beijing, China
- Beijing Key Laboratory of Neural Injury and Rehabilitation, Beijing, China
- School of Rehabilitation Sciences and Engineering, University of Health and Rehabilitation Sciences, Qingdao, China
| | - Chuan Qin
- Department of Urology, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Zhang Xin
- School of Sports Medicine and Rehabilitation, Beijing Sport University, Beijing, China
| | - Yixin Chen
- School of Rehabilitation, Capital Medical University, Beijing, China
- Department of Spinal and Neural Functional Reconstruction, China Rehabilitation Research Center, Beijing, China
- Chinese Institute of Rehabilitation Science, Beijing, China
- Center of Neural Injury and Repair, Beijing Institute for Brain Disorders, Beijing, China
- Beijing Key Laboratory of Neural Injury and Rehabilitation, Beijing, China
- Department of Rehabilitation Medicine, Xiangya Hospital, Central South University, Changsha, China
| | - Jiayi Liu
- School of Rehabilitation, Capital Medical University, Beijing, China
- Department of Spinal and Neural Functional Reconstruction, China Rehabilitation Research Center, Beijing, China
- Chinese Institute of Rehabilitation Science, Beijing, China
- Center of Neural Injury and Repair, Beijing Institute for Brain Disorders, Beijing, China
- Beijing Key Laboratory of Neural Injury and Rehabilitation, Beijing, China
| | - Subarna Dangol
- School of Rehabilitation, Capital Medical University, Beijing, China
- Department of Spinal and Neural Functional Reconstruction, China Rehabilitation Research Center, Beijing, China
- Chinese Institute of Rehabilitation Science, Beijing, China
- Center of Neural Injury and Repair, Beijing Institute for Brain Disorders, Beijing, China
- Beijing Key Laboratory of Neural Injury and Rehabilitation, Beijing, China
| | - Xiaodong Ma
- School of Rehabilitation, Capital Medical University, Beijing, China
- Department of Spinal and Neural Functional Reconstruction, China Rehabilitation Research Center, Beijing, China
- Chinese Institute of Rehabilitation Science, Beijing, China
- Center of Neural Injury and Repair, Beijing Institute for Brain Disorders, Beijing, China
- Beijing Key Laboratory of Neural Injury and Rehabilitation, Beijing, China
| | - Han Gong
- School of Rehabilitation, Capital Medical University, Beijing, China
- Department of Spinal and Neural Functional Reconstruction, China Rehabilitation Research Center, Beijing, China
- Chinese Institute of Rehabilitation Science, Beijing, China
- Center of Neural Injury and Repair, Beijing Institute for Brain Disorders, Beijing, China
- Beijing Key Laboratory of Neural Injury and Rehabilitation, Beijing, China
| | - Zhisheng Pei
- Chinese Institute of Rehabilitation Science, Beijing, China
- Center of Neural Injury and Repair, Beijing Institute for Brain Disorders, Beijing, China
- Beijing Key Laboratory of Neural Injury and Rehabilitation, Beijing, China
| | - Yan Yu
- School of Rehabilitation, Capital Medical University, Beijing, China
- Chinese Institute of Rehabilitation Science, Beijing, China
- Center of Neural Injury and Repair, Beijing Institute for Brain Disorders, Beijing, China
- Beijing Key Laboratory of Neural Injury and Rehabilitation, Beijing, China
| | - Jianjun Li
- School of Rehabilitation, Capital Medical University, Beijing, China
- Department of Spinal and Neural Functional Reconstruction, China Rehabilitation Research Center, Beijing, China
- Chinese Institute of Rehabilitation Science, Beijing, China
- Center of Neural Injury and Repair, Beijing Institute for Brain Disorders, Beijing, China
- Beijing Key Laboratory of Neural Injury and Rehabilitation, Beijing, China
- School of Rehabilitation Sciences and Engineering, University of Health and Rehabilitation Sciences, Qingdao, China
| | - Liangjie Du
- School of Rehabilitation, Capital Medical University, Beijing, China
- Department of Spinal and Neural Functional Reconstruction, China Rehabilitation Research Center, Beijing, China
- Chinese Institute of Rehabilitation Science, Beijing, China
- Center of Neural Injury and Repair, Beijing Institute for Brain Disorders, Beijing, China
- Beijing Key Laboratory of Neural Injury and Rehabilitation, Beijing, China
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Liu J, Liu Z, Tang Y, Munoz A, Zhang Y, Li X. Treatment with platelet-rich plasma attenuates proprioceptor abnormalities in a rat model of postpartum stress urinary incontinence. Int Urogynecol J. [PMID: 35195739 DOI: 10.1007/s00192-022-05112-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2021] [Accepted: 01/27/2022] [Indexed: 12/23/2022]
Abstract
INTRODUCTION AND HYPOTHESIS Stress urinary incontinence (SUI) is the most prevalent form of urinary incontinence, and vaginal delivery is a major risk factor for developing SUI. We evaluated the hypothesis that applying the autologous platelet rich plasma (PRP) to the pelvic floor muscles via injection affects expression of proprioceptors and improves postpartum stress urinary incontinence (PSUI) in rats. METHODS Virgin female Sprague-Dawley rats were divided into control (n = 10) and experimental group(n = 20). Vaginal dilation was used to establish PSUI, and the rats in the experimental group were further divided into the PSUI group (n = 10) and PSUI+PRP group (n = 10). Pelvic floor muscles from rats in the PSUI+PRP group were positioned under ultrasound guidance for PRP injection. The morphology and number of pelvic floor muscle spindles were assessed using H&E staining, proprioceptors evaluated by gold chloride staining, and changes in the expression of neurotrophin-3 (NT-3) and skeletal myosin MY-32 determined by immunohistochemistry. RESULTS After 28 days,bladder leak point pressure (BLPP) and abdominal leaking-urine point pressure (ALPP) in rats with PSUI were significantly lower than in control animals (P<0.01). Both BLPP and ALPP increased significantly in the PSUI+PRP group (P<0.01). Compared with the control group, muscle spindle morphology and structure in the PSUI and PSUI+PRP groups had different pathological changes,with higher variations in the PSUI group. The positive signals for NT-3/MY-32 expression in control rats were higher than those from PSUI or PSUI+PRP groups, however, the expression for NT-3/MY-32 in PSUI+PRP animals was higher than that seen in the PSUI group (P < 0.01). CONCLUSIONS PSUI rats have an abnormal expression of pelvic proprioceptors, which affect proprioceptive function, and further the contractibility of pelvic floor muscles. A PRP injection may restore the sensory function of pelvic proprioceptors, thus improving urine leakage in PSUI rats.
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18
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Lin PH, Kuo LT, Luh HT. The Roles of Neurotrophins in Traumatic Brain Injury. Life (Basel) 2021; 12:life12010026. [PMID: 35054419 PMCID: PMC8780368 DOI: 10.3390/life12010026] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Revised: 12/18/2021] [Accepted: 12/21/2021] [Indexed: 02/08/2023]
Abstract
Neurotrophins are a collection of structurally and functionally related proteins. They play important roles in many aspects of neural development, survival, and plasticity. Traumatic brain injury (TBI) leads to different levels of central nervous tissue destruction and cellular repair through various compensatory mechanisms promoted by the injured brain. Many studies have shown that neurotrophins are key modulators of neuroinflammation, apoptosis, blood–brain barrier permeability, memory capacity, and neurite regeneration. The expression of neurotrophins following TBI is affected by the severity of injury, genetic polymorphism, and different post-traumatic time points. Emerging research is focused on the potential therapeutic applications of neurotrophins in managing TBI. We conducted a comprehensive review by organizing the studies that demonstrate the role of neurotrophins in the management of TBI.
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Affiliation(s)
- Ping-Hung Lin
- Department of Medical Education, School of Medicine, National Taiwan University, Taipei 100, Taiwan;
| | - Lu-Ting Kuo
- Division of Neurosurgery, Department of Surgery, National Taiwan University Hospital, Taipei 100, Taiwan;
| | - Hui-Tzung Luh
- Department of Neurosurgery, Shuang Ho Hospital, Taipei Medical University, New Taipei City 235, Taiwan
- Taipei Neuroscience Institute, Taipei Medical University, New Taipei City 235, Taiwan
- Graduate Institute of Clinical Medicine, National Taiwan University, Taipei 100, Taiwan
- Correspondence: ; Tel.: +886-956279587
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19
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Sydney-Smith JD, Spejo AB, Warren PM, Moon LDF. Peripherally delivered Adeno-associated viral vectors for spinal cord injury repair. Exp Neurol 2021; 348:113945. [PMID: 34896114 DOI: 10.1016/j.expneurol.2021.113945] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Revised: 11/11/2021] [Accepted: 12/03/2021] [Indexed: 11/25/2022]
Abstract
Via the peripheral and autonomic nervous systems, the spinal cord directly or indirectly connects reciprocally with many body systems (muscular, intengumentary, respiratory, immune, digestive, excretory, reproductive, cardiovascular, etc). Accordingly, spinal cord injury (SCI) can result in catastrophe for multiple body systems including muscle paralysis affecting movement and loss of normal sensation, as well as neuropathic pain, spasticity, reduced fertility and autonomic dysreflexia. Treatments and cure for an injured spinal cord will likely require access of therapeutic agents across the blood-CNS (central nervous system) barrier. However, some types of repair within the CNS may be possible by targeting treatment to peripherally located cells or by delivering Adeno-Associated Viral vectors (AAVs) by peripheral routes (e.g., intrathecal, intravenous). This review will consider some future possibilities for SCI repair generated by therapeutic peripheral gene delivery. There are now six gene therapies approved worldwide as safe and effective medicines of which three were created by modification of the apparently nonpathogenic Adeno-Associated Virus. One of these AAVs, Zolgensma, is injected intrathecally for treatment of spinal muscular atrophy in children. One day, delivery of AAVs into peripheral tissues might improve recovery after spinal cord injury in humans; we discuss experiments by us and others delivering transgenes into nerves or muscles for sensorimotor recovery in animal models of SCI or of stroke including human Neurotrophin-3. We also describe ongoing efforts to develop AAVs that are delivered to particular targets within and without the CNS after peripheral administration using capsids with improved tropisms, promoters that are selective for particular cell types, and methods for controlling the dose and duration of expression of a transgene. In conclusion, in the future, minimally invasive administration of AAVs may improve recovery after SCI with minimal side effects.
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Affiliation(s)
- Jared D Sydney-Smith
- Neurorestoration Group, Wolfson Centre for Age-Related Diseases, King's College London, University of London, 16-20 Newcomen Street, London SE1 1UL, United Kingdom
| | - Aline B Spejo
- Neurorestoration Group, Wolfson Centre for Age-Related Diseases, King's College London, University of London, 16-20 Newcomen Street, London SE1 1UL, United Kingdom
| | - Philippa M Warren
- Neurorestoration Group, Wolfson Centre for Age-Related Diseases, King's College London, University of London, 16-20 Newcomen Street, London SE1 1UL, United Kingdom
| | - Lawrence D F Moon
- Neurorestoration Group, Wolfson Centre for Age-Related Diseases, King's College London, University of London, 16-20 Newcomen Street, London SE1 1UL, United Kingdom.
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20
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Ozes B, Moss K, Myers M, Ridgley A, Chen L, Murrey D, Sahenk Z. AAV1. NT-3 gene therapy in a CMT2D model: phenotypic improvements in GarsP278KY/+ mice. Brain Commun 2021; 3:fcab252. [PMID: 34755111 PMCID: PMC8568849 DOI: 10.1093/braincomms/fcab252] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Revised: 09/24/2021] [Accepted: 09/28/2021] [Indexed: 12/15/2022] Open
Abstract
Glycyl-tRNA synthetase mutations are associated to the Charcot-Marie-Tooth disease type-2D. The GarsP278KY/+ model for Charcot-Marie-Tooth disease type-2D is known best for its early onset severe neuropathic phenotype with findings including reduced axon size, slow conduction velocities and abnormal neuromuscular junction. Muscle involvement remains largely unexamined. We tested the efficacy of neurotrophin 3 gene transfer therapy in two Gars mutants with severe (GarsP278KY/+ ) and milder (GarsΔETAQ/+ ) phenotypes via intramuscular injection of adeno-associated virus setoype-1, triple tandem muscle creatine kinase promoter, neurotrophin 3 (AAV1.tMCK.NT-3) at 1 × 1011 vg dose. In the GarsP278KY/+ mice, the treatment efficacy was assessed at 12 weeks post-injection using rotarod test, electrophysiology and detailed quantitative histopathological studies of the peripheral nervous system including neuromuscular junction and muscle. Neurotrophin 3 gene transfer therapy in GarsP278KY/+ mice resulted in significant functional and electrophysiological improvements, supported with increases in myelin thickness and improvements in the denervated status of neuromuscular junctions as well as increases in muscle fibre size along with attenuation of myopathic changes. Improvements in the milder phenotype GarsΔETAQ/+ was less pronounced. Furthermore, oxidative enzyme histochemistry in muscles from Gars mutants revealed alterations in the content and distribution of oxidative enzymes with increased expression levels of Pgc1a. Cox1, Cox3 and Atp5d transcripts were significantly decreased suggesting that the muscle phenotype might be related to mitochondrial dysfunction. Neurotrophin 3 gene therapy attenuated these abnormalities in the muscle. This study shows that neurotrophin 3 gene transfer therapy has disease modifying effect in a mouse model for Charcot-Marie-Tooth disease type-2D, leading to meaningful improvements in peripheral nerve myelination and neuromuscular junction integrity as well as in a unique myopathic process, associated with mitochondria dysfunction, all in combination contributing to functional outcome. Based on the multiple biological effects of this versatile molecule, we predict neurotrophin 3 has the potential to be beneficial in other aminoacyl-tRNA synthetase-linked Charcot-Marie-Tooth disease subtypes.
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Affiliation(s)
- Burcak Ozes
- Department of Pediatrics, Center for Gene Therapy, The Abigail Wexner Research Institute, Nationwide Children's Hospital, Columbus, OH 43205, USA
| | - Kyle Moss
- Department of Pediatrics, Center for Gene Therapy, The Abigail Wexner Research Institute, Nationwide Children's Hospital, Columbus, OH 43205, USA
| | - Morgan Myers
- Department of Pediatrics, Center for Gene Therapy, The Abigail Wexner Research Institute, Nationwide Children's Hospital, Columbus, OH 43205, USA
| | - Alicia Ridgley
- Department of Pediatrics, Center for Gene Therapy, The Abigail Wexner Research Institute, Nationwide Children's Hospital, Columbus, OH 43205, USA
| | - Lei Chen
- Department of Pediatrics, Center for Gene Therapy, The Abigail Wexner Research Institute, Nationwide Children's Hospital, Columbus, OH 43205, USA
| | - Darren Murrey
- Department of Pediatrics, Center for Gene Therapy, The Abigail Wexner Research Institute, Nationwide Children's Hospital, Columbus, OH 43205, USA
| | - Zarife Sahenk
- Department of Pediatrics, Center for Gene Therapy, The Abigail Wexner Research Institute, Nationwide Children's Hospital, Columbus, OH 43205, USA.,Department of Pediatrics and Neurology, Nationwide Children's Hospital and The Ohio State University, Columbus, OH 43205, USA.,Department of Pathology and Laboratory Medicine, Nationwide Children's Hospital, Columbus, OH 43205, USA
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21
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Müller ML, Peglau L, Moon LDF, Groß S, Schulze J, Ruhnau J, Vogelgesang A. Neurotrophin-3 attenuates human peripheral blood T cell and monocyte activation status and cytokine production post stroke. Exp Neurol 2021; 347:113901. [PMID: 34688600 DOI: 10.1016/j.expneurol.2021.113901] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Revised: 09/17/2021] [Accepted: 10/18/2021] [Indexed: 11/24/2022]
Abstract
BACKGROUND AND PURPOSE Stroke therapy still lacks successful measures to improve post stroke recovery. Neurotrophin-3 (NT-3) is one promising candidate which has proven therapeutic benefit in motor recovery in acute experimental stroke. Post stroke, the immune system has opposing pathophysiological roles: pro-inflammatory cascades and immune cell infiltration into the brain exacerbate cell death while the peripheral immune response has only limited capabilities to fight infections during the acute and subacute phase. With time, anti-inflammatory mechanisms are supposed to support recovery of the ischemic damage within the brain parenchyma. However, interestingly, NT-3 can improve recovery in chronic neurological injury when combined with the pro-inflammatory stimulus lipopolysaccharide (LPS). AIM We elucidated the impact of NT-3 on human monocyte and T cell activation as well as cytokine production ex vivo after stroke. In addition, we investigated the age-dependent availability of the high affinity NT-3 receptor TrkC upon LPS stimulation. METHODS Peripheral blood mononuclear cells (PBMCs) were isolated from acute stroke patients and controls and incubated with different dosages of NT-3 (10 and 100 ng/mL) and with or without LPS or anti-CD3/CD28 for 48 h. Total TrkC expression and cell activation (CD25, CD69 and HLA-DR) were assessed by FACS staining. IFN-γ, TNF-α, IL-2, IL-4, IL-5, IL-6, IL-9, IL-10, IL-13, IL-17A, IL-17F, IL-21 and IL-22 were quantified by cytometric bead array. RESULTS Most monocytes and only a small proportion of T cells expressed TrkC in blood from humans without stroke. Activation of cells from young humans (without strokes) using anti-CD3/CD28 or LPS partially reduced the proportion of monocytes expressing TrkC whilst they increased the proportion of T cells expressing TrkC. In contrast, activation of cells from elderly humans (without strokes) did not affect the proportion of monocytes expressing TrkC and only anti-CD3/CD28 led to an increase in the proportion of CD4+ T cells expressing TrkC. In blood from stroke patients or controls, NT-3 treatment reduced the percentage of monocytes and CD4+ and CD8+ T cells that were activated and reduced all cytokines investigated besides IL-21. CONCLUSIONS NT-3 attenuated immune responses in cells from stroke patients and controls. The mechanism whereby human immune cells respond to NT-3 may be via TrkC receptors whose levels are regulated by stimulation. Further work is required to determine whether the induction of sensorimotor recovery in rodents by NT-3 after CNS injury is caused by this attenuation of the immune response.
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Affiliation(s)
| | - Lars Peglau
- Department of Neurology, University Medicine, Greifswald, Germany
| | - Lawrence D F Moon
- Neurorestoration Group, Wolfson Centre for Age-Related Diseases, King's College London, United Kingdom
| | - Stefan Groß
- Department of Internal Medicine B, University Medicine, Greifswald, Germany
| | - Juliane Schulze
- Department of Neurology, University Medicine, Greifswald, Germany
| | - Johanna Ruhnau
- Department of Neurology, University Medicine, Greifswald, Germany
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22
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Kawanokuchi J, Takagi K, Tanahashi N, Yamamoto T, Nagaoka N, Ishida T, Ma N. Acupuncture Treatment for Social Defeat Stress. Front Behav Neurosci 2021; 15:685433. [PMID: 34393735 PMCID: PMC8355549 DOI: 10.3389/fnbeh.2021.685433] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Accepted: 07/05/2021] [Indexed: 01/22/2023] Open
Abstract
Depression is a mood disorder characterized by disordered affect, thoughts, cognition, and behavior. Antidepressant therapy is often the primary treatment for depression. However, antidepressant therapy may cause unwanted side effects, and its effects are slow. Therefore, some patients are seeking alternative treatments for depression, such as acupuncture. However, there are many unclear points regarding the mechanism of the effect of acupuncture on depression. In recent years, we have reported that acupuncture improves the symptoms of mild depression induced by water-immersion stress in a rat model and depression induced by forced swimming in a mouse model. In this study, we examined the effect of acupuncture on the symptoms of social defeat stress (SDS)-induced depression in mice that most closely resemble human symptoms. In this study, we investigated the preventive and therapeutic effects of acupuncture as part of GV20 “Bai-Hui” and Ex-HN3 “Yintang” on model mice with depression induced by SDS. To examine the mechanism of the preventive and therapeutic effects of acupuncture on depression model mice, we examined the expression of neurotrophic factors in the brains of SDS mice. Two weeks of simultaneous acupuncture stimulation as part of GV20 and Ex-HN3 restored SDS-reduced brain-derived neurotrophic factor (BDNF), neurotrophin (NT)-3, and NT-4/5 expression, which was not observed with antidepressants. In contrast, acupuncture stimulation suppressed nerve growth factor (NGF) expression induced by SDS. These results suggest that acupuncture treatment could be effective in correcting the imbalance in the expression of neurotrophic factors. Furthermore, the effects of acupuncture on the expression of neurotrophic factors appear earlier than those of antidepressants, suggesting that it may be a useful treatment for depression.
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Affiliation(s)
- Jun Kawanokuchi
- Institute of Traditional Chinese Medicine, Suzuka University of Medical Science, Suzuka, Japan.,Division of Health Science, Graduate School of Health Science, Suzuka University of Medical Science, Suzuka, Japan
| | - Ken Takagi
- Institute of Traditional Chinese Medicine, Suzuka University of Medical Science, Suzuka, Japan.,Department of Acupuncture and Moxibustion Science, Faculty of Health Science, Suzuka University of Medical Science, Suzuka, Japan
| | - Nobuyuki Tanahashi
- Department of Clinical Nutrition, Faculty of Health Science, Suzuka University of Medical Science, Suzuka, Japan
| | - Teruhisa Yamamoto
- Department of Acupuncture and Moxibustion Science, Faculty of Health Science, Suzuka University of Medical Science, Suzuka, Japan
| | - Nobuyuki Nagaoka
- Department of Acupuncture and Moxibustion Science, Faculty of Health Science, Suzuka University of Medical Science, Suzuka, Japan
| | - Torao Ishida
- Institute of Traditional Chinese Medicine, Suzuka University of Medical Science, Suzuka, Japan
| | - Ning Ma
- Institute of Traditional Chinese Medicine, Suzuka University of Medical Science, Suzuka, Japan.,Division of Health Science, Graduate School of Health Science, Suzuka University of Medical Science, Suzuka, Japan
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23
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Elesawy BH, Alsanie WF, Algahtany MA, Al-Ashkhari JM, Alyarobi AK, Sakr HF. Whole and refined grains change behavior and reduce brain derived neurotrophic factor and neurotrophin-3 in rats. J Food Biochem 2021; 45:e13867. [PMID: 34278588 DOI: 10.1111/jfbc.13867] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2021] [Revised: 06/06/2021] [Accepted: 07/03/2021] [Indexed: 11/30/2022]
Abstract
In most of the world, wheat is one of the main staple foods, and is also widely used in livestock feed. In the current study, we investigated the effects of wheat grain consumption on the rat behavior and neurogenesis markers. Thirty male rats were divided into three equal groups (n = 10). Group 1 was the control group fed with chow diet (Carbohydrates 63%, fat 13% and protein 24%), the Group 2 rats were fed with whole grains and the Group 3 rats were fed with refined grains. After 12 weeks, we measured the hippocampal and prefrontal cortical brain derived neurotrophic factor (BDNF), neurotrophin-3 (NT-3), 5-hydroxytryptamine, dopamine, norepinephrine, malondialdehyde (MDA) and reduced glutathione (GSH) levels. Also, we evaluated the rat behavior by forced swimming test (FST) and elevated plus maze (EPM) test. Additionally, we measured serum level of glucose, lipid profile, insulin and cortisol. Weight gain at the end of the study was measured in each group. The rats on a diet of whole and refined grains had low BDNF, NT-3, norepinephrine, dopamine and serotonin significantly (p < .01) in both the hippocampus and prefrontal cortex as compared to control rats. Moreover, the MDA increased significantly with significant reduction in GSH versus the control rats. Moreover, in response to grain consumption, the performance in FST showed a significant (p < .01) shortage in the latency of the attempts to escape as well as a significant prolongation (p < .01) in behavioral immobility as compared to control rats with significant (p < .05) prolongation in time spent in closed arm in EPM. An exclusive diet of either whole or refined grain in a rat model induced anxiety and depressive behaviors and negatively affected the BDNF and NT-3 and modulated the level of the neurotransmitters with significant shift in their behavior. PRACTICAL APPLICATIONS: Grains are considered the major caloric source all over the world that may predispose to the development of chronic diseases. In this research, we evaluated the role of grains in modulating the rate of production of neurogenic factors in rats.
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Affiliation(s)
- Basem H Elesawy
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, Taif University, Taif, Saudi Arabia
| | - Walaa F Alsanie
- Addiction and Neuroscience Research Unit, Taif University, Taif, Saudi Arabia
- Department of Clinical Laboratories Sciences, Faculty of Applied Medical Sciences, Taif University, Taif, Saudi Arabia
| | - Mubarak Ali Algahtany
- Division of Neurosurgery, Department of Surgery, College of Medicine, King Khalid University, Abha, Saudi Arabia
| | - Jawaher M Al-Ashkhari
- Department of Physiology, College of Medicine and Health Sciences, Sultan Qaboos University, Muscat, Oman
| | - Aya K Alyarobi
- Department of Physiology, College of Medicine and Health Sciences, Sultan Qaboos University, Muscat, Oman
| | - Hussein F Sakr
- Department of Physiology, College of Medicine and Health Sciences, Sultan Qaboos University, Muscat, Oman
- Medical Physiology Department, Faculty of Medicine, Mansoura, University, Mansoura, Egypt
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24
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Nieto-Estévez V, Defterali Ç, Vicario C. Distinct Effects of BDNF and NT-3 on the Dendrites and Presynaptic Boutons of Developing Olfactory Bulb GABAergic Interneurons In Vitro. Cell Mol Neurobiol 2021. [PMID: 33392918 DOI: 10.1007/s10571-020-01030-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Accepted: 12/11/2020] [Indexed: 12/23/2022]
Abstract
Brain-derived neurotrophic factor (BDNF) and neurotrophin 3 (NT-3) are known to regulate neuronal morphology and the formation of neural circuits, yet the neuronal targets of each neurotrophin are still to be defined. To address how these neurotrophins regulate the morphological and synaptic differentiation of developing olfactory bulb (OB) GABAergic interneurons, we analyzed the effect of BDNF and NT-3 on GABA+-neurons and on different subtypes of these neurons: tyrosine hydroxylase (TH+); calretinin (Calr+); calbindin (Calb+); and parvalbumin (PVA+). These cells were generated from cultured embryonic mouse olfactory bulb neural stem cells (eOBNSCs) and after 14 days in vitro (DIV), when the neurons expressed TrkB and/or TrkC receptors, BDNF and NT-3 did not significantly change the number of neurons. However, long-term BDNF treatment did produce a longer total dendrite length and/or more dendritic branches in all the interneuron populations studied, except for PVA+-neurons. Similarly, BDNF caused an increase in the cell body perimeter in all the interneuron populations analyzed, except for PVA+-neurons. GABA+- and TH+-neurons were also studied at 21 DIV, when BDNF produced significantly longer neurites with no clear change in their number. Notably, these neurons developed synaptophysin+ boutons at 21 DIV, the size of which augmented significantly following exposure to either BDNF or NT-3. Our results show that in conditions that maintain neuronal survival, BDNF but not NT-3 promotes the morphological differentiation of developing OB interneurons in a cell-type-specific manner. In addition, our findings suggest that BDNF and NT-3 may promote synapse maturation by enhancing the size of synaptic boutons.
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25
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Abstract
Introduction: Neurotrophin-3 (NT-3) is thought to play a role in the neurobiological processes implicated in mood and anxiety disorders. NT-3 is a potential pharmacological target for mood disorders because of its effects on monoamine neurotransmitters, regulation of synaptic plasticity and neurogenesis, brain-derived neurotrophic factor (BDNF) signaling boosting, and modulation of the hypothalamic-pituitary-adrenal (HPA) axis. The mechanisms underlying NT-3 anxiolytic properties are less clear and require further exploration and definition. Areas covered: The evidence that supports NT-3 as a pharmacological target for anxiety and mood disorders is presented and this is followed by a reflection on the quandaries, stumbling blocks, and future perspectives for this novel target. Expert opinion: There is evidence for miRNAs being key post-transcriptional regulators of neurotrophin-3 receptor gene (NTRK3) in anxiety disorders; however, the anxiolytic properties of NT-3 need further examination and delineation. Moreover, NT-3 expression by non-neuronal cells and its role in brain circuits that participate in anxiety and mood disorders require further scrutiny. Further work is vital before progression into clinical trials can be realized.
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Affiliation(s)
- A S de Miranda
- Laboratório Interdisciplinar de Investigação Médica, Faculdade de Medicina, Universidade Federal de Minas Gerais , Belo Horizonte, Brazil.,Laboratório de Neurobiologia, Departamento de Morfologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais , Belo Horizonte, Brazil
| | - J L V M de Barros
- Laboratório Interdisciplinar de Investigação Médica, Faculdade de Medicina, Universidade Federal de Minas Gerais , Belo Horizonte, Brazil
| | - Antonio Lucio Teixeira
- Neuropsychiatry Program, Department of Psychiatry & Behavioral Sciences, McGovern Medical School, University of Texas Health Science Center at Houston , Houston, TX, Brazil
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26
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Yu Y, Li Z, Ma F, Chen Q, Lin L, Xu Q, Li Y, Xin X, Pan P, Huang T, Wang Y, Fei Q, Ge RS. Neurotrophin-3 stimulates stem Leydig cell proliferation during regeneration in rats. J Cell Mol Med 2020; 24:13679-13689. [PMID: 33090725 PMCID: PMC7753877 DOI: 10.1111/jcmm.15886] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2020] [Revised: 07/30/2020] [Accepted: 08/17/2020] [Indexed: 11/28/2022] Open
Abstract
Neurotrophin‐3 (NT‐3) acts as an important growth factor to stimulate and control tissue development. The NT‐3 receptor, TRKC, is expressed in rat testis. Its function in regulation of stem Leydig cell development and its underlying mechanism remain unknown. Here, we reported the role of NT‐3 to regulate stem Leydig cell development in vivo and in vitro. Ethane dimethane sulphonate was used to kill all Leydig cells in adult testis, and NT‐3 (10 and 100 ng/testis) was injected intratesticularly from the 14th day after ethane dimethane sulphonate injection for 14 days. NT‐3 significantly reduced serum testosterone levels at doses of 10 and 100 ng/testis without affecting serum luteinizing hormone and follicle‐stimulating hormone levels. NT‐3 increased CYP11A1‐positive Leydig cell number at 100 ng/testis and lowered Leydig cell size and cytoplasmic size at doses of 10 and 100 ng/testis. After adjustment by the Leydig cell number, NT‐3 significantly down‐regulated the expression of Leydig cell genes (Lhcgr, Scarb1, Star, Cyp11a1, Hsd3b1, Cyp17a1, Hsd17b3, Hsd11b1, Insl3, Trkc and Nr5a1) and the proteins. NT‐3 increased the phosphorylation of AKT1 and mTOR, decreased the phosphorylation of 4EBP, thereby increasing ATP5O. In vitro study showed that NT‐3 dose‐dependently stimulated EdU incorporation into stem Leydig cells and inhibited stem Leydig cell differentiation into Leydig cells, thus leading to lower medium testosterone levels and lower expression of Lhcgr, Scarb1, Trkc and Nr5a1 and their protein levels. NT‐3 antagonist Celitinib can antagonize NT‐3 action in vitro. In conclusion, the present study demonstrates that NT‐3 stimulates stem Leydig cell proliferation but blocks the differentiation via TRKC receptor.
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Affiliation(s)
- Yige Yu
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
| | - Zengqiang Li
- Department of Anesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
| | - Feifei Ma
- Department of Anesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
| | - Quanxu Chen
- Department of Anesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
| | - Liben Lin
- Department of Anesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
| | - Qiang Xu
- Department of Anesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
| | - Yang Li
- Department of Anesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
| | - Xiu Xin
- Department of Anesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
| | - Peipei Pan
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
| | - Tongliang Huang
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
| | - Yiyan Wang
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
| | - Qianjin Fei
- Reproductive Medicine Center, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Ren-Shan Ge
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China.,Department of Anesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
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Frick C, Fink S, Schmidbauer D, Rousset F, Eickhoff H, Tropitzsch A, Kramer B, Senn P, Glueckert R, Rask-Andersen H, Wiesmüller KH, Löwenheim H, Müller M. Age-Dependency of Neurite Outgrowth in Postnatal Mouse Cochlear Spiral Ganglion Explants. Brain Sci 2020; 10:brainsci10090580. [PMID: 32839381 PMCID: PMC7564056 DOI: 10.3390/brainsci10090580] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Revised: 08/18/2020] [Accepted: 08/19/2020] [Indexed: 12/22/2022] Open
Abstract
Background: The spatial gap between cochlear implants (CIs) and the auditory nerve limits frequency selectivity as large populations of spiral ganglion neurons (SGNs) are electrically stimulated synchronously. To improve CI performance, a possible strategy is to promote neurite outgrowth toward the CI, thereby allowing a discrete stimulation of small SGN subpopulations. Brain-derived neurotrophic factor (BDNF) is effective to stimulate neurite outgrowth from SGNs. Method: TrkB (tropomyosin receptor kinase B) agonists, BDNF, and five known small-molecule BDNF mimetics were tested for their efficacy in stimulating neurite outgrowth in postnatal SGN explants. To modulate Trk receptor-mediated effects, TrkB and TrkC ligands were scavenged by an excess of recombinant receptor proteins. The pan-Trk inhibitor K252a was used to block Trk receptor actions. Results: THF (7,8,3′-trihydroxyflavone) partly reproduced the BDNF effect in postnatal day 7 (P7) mouse cochlear spiral ganglion explants (SGEs), but failed to show effectiveness in P4 SGEs. During the same postnatal period, spontaneous and BDNF-stimulated neurite outgrowth increased. The increased neurite outgrowth in P7 SGEs was not caused by the TrkB/TrkC ligands, BDNF and neurotrophin-3 (NT-3). Conclusions: The age-dependency of induction of neurite outgrowth in SGEs was very likely dependent on presently unidentified factors and/or molecular mechanisms which may also be decisive for the age-dependent efficacy of the small-molecule TrkB receptor agonist THF.
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Affiliation(s)
- Claudia Frick
- Department of Otolaryngology, Head and Neck Surgery, Tübingen Hearing Research Centre, University of Tübingen Medical Center, 72076 Tübingen, Germany; (C.F.); (A.T.); (B.K.); (H.L.); (M.M.)
- Department of Microbiome Science, Max Planck Institute for Developmental Biology, 72076 Tübingen, Germany
| | - Stefan Fink
- Department of Otolaryngology, Head and Neck Surgery, Tübingen Hearing Research Centre, University of Tübingen Medical Center, 72076 Tübingen, Germany; (C.F.); (A.T.); (B.K.); (H.L.); (M.M.)
- Correspondence: ; Tel.: +49-7071-2988192
| | - Dominik Schmidbauer
- Inner Ear Laboratory Innsbruck, Medical University Innsbruck, 6020 Innsbruck, Austria; (D.S.); (R.G.)
| | - Francis Rousset
- The Inner Ear & Olfaction Lab, Department of Clinical Neurosciences, Faculty of Medicine, University of Geneva, 1206 Geneva, Switzerland; (F.R.); (P.S.)
| | - Holger Eickhoff
- EMC Microcollections GmbH, 72070 Tübingen, Germany; (H.E.); (K.-H.W.)
| | - Anke Tropitzsch
- Department of Otolaryngology, Head and Neck Surgery, Tübingen Hearing Research Centre, University of Tübingen Medical Center, 72076 Tübingen, Germany; (C.F.); (A.T.); (B.K.); (H.L.); (M.M.)
| | - Benedikt Kramer
- Department of Otolaryngology, Head and Neck Surgery, Tübingen Hearing Research Centre, University of Tübingen Medical Center, 72076 Tübingen, Germany; (C.F.); (A.T.); (B.K.); (H.L.); (M.M.)
- Department of Otolaryngology, Head and Neck Surgery, University Hospital Mannheim, 68167 Mannheim, Germany
| | - Pascal Senn
- The Inner Ear & Olfaction Lab, Department of Clinical Neurosciences, Faculty of Medicine, University of Geneva, 1206 Geneva, Switzerland; (F.R.); (P.S.)
| | - Rudolf Glueckert
- Inner Ear Laboratory Innsbruck, Medical University Innsbruck, 6020 Innsbruck, Austria; (D.S.); (R.G.)
- Tirol Kliniken Innsbruck, University Clinic of Otolaryngology, 6020 Innsbruck, Austria
| | - Helge Rask-Andersen
- Department of Surgical Sciences, Otorhinolaryngology and Head and Neck Surgery, University of Uppsala, 751 85 Uppsala, Sweden;
| | | | - Hubert Löwenheim
- Department of Otolaryngology, Head and Neck Surgery, Tübingen Hearing Research Centre, University of Tübingen Medical Center, 72076 Tübingen, Germany; (C.F.); (A.T.); (B.K.); (H.L.); (M.M.)
| | - Marcus Müller
- Department of Otolaryngology, Head and Neck Surgery, Tübingen Hearing Research Centre, University of Tübingen Medical Center, 72076 Tübingen, Germany; (C.F.); (A.T.); (B.K.); (H.L.); (M.M.)
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Abstract
Neurotrophin-3 (NT-3) belongs to a family of growth factors called neurotrophins whose actions are centered in the nervous system. NT-3 is structurally related to other neurotrophins like brain-derived neurotrophic factor. The expression of NT-3 starts with the onset of neurogenesis and continues throughout life. A wealth of information links NT-3 to the growth, differentiation, and survival of hippocampal cells as well as sympathetic and sensory neurons. These studies have described the distribution of NT-3 and its receptors throughout development and in the mature nervous system. Prior works has begun to cell-type specific impact of NT-3 as well as identify the signaling pathways involved. However, much less is known about how NT-3 regulates synaptic transmission. This chapter focuses role of NT-3 in the modulation of synaptic transmission.
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Bae JY. Preventive Effects of Different Aerobic Exercise Intensities on the Decline of Cognitive Function in High-Fat Diet-Induced Obese Growing Mice. ACTA ACUST UNITED AC 2020; 56:medicina56070331. [PMID: 32630770 PMCID: PMC7404633 DOI: 10.3390/medicina56070331] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Revised: 06/17/2020] [Accepted: 06/27/2020] [Indexed: 12/22/2022]
Abstract
Background and Objectives: The purpose of this study was to elucidate the effects of different exercise intensities in preventing the decline of cognitive function and lipolysis associated with a high-fat diet-induced obesity in growing mice. Material and Methods: Forty male C57BL/6 mice, aged 4 weeks, were divided into the normal diet (CO, n = 10) and high-fat diet (HF, n = 30) groups to induce obesity for 8 weeks. Subsequently, the HF group was subdivided equally into the HF, HF + low-intensity training (HFLT), and HF + high-intensity training (HFHT) groups, and mice were subjected to treadmill training for 8 weeks. Results: Following the 8-week training intervention, body weight and fat mass were significantly lower in the training groups than in the HF group (p < 0.05). Adipose triglyceride lipase (ATGL), hormone-sensitive lipase (HSL), and monoglyceride lipase levels were significantly higher in the training groups than in the HF group (p < 0.05), and the ATGL and HSL levels were significantly higher in the HFHT group than in the HFLT group (p < 0.05). The Y-maze test showed that the training groups had a higher number of total entries and percent alternation than the HF group (p < 0.05). Hippocampal nerve growth factor, brain-derived neurotrophic factor, and neurotrophin-3 levels were significantly higher in the training group than in the HF group (p < 0.05). However, there was no significant difference according to the exercise intensity among the groups. Conclusions: The results of this study suggested that low-intensity exercise is as effective as a high-intensity exercise in preventing the decline of cognitive function and lipolysis, and far more effective in terms of an expected efficiency of workload and prevention of side effects.
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Affiliation(s)
- Ju Yong Bae
- Laboratory of Exercise Biochemistry, Department of Physical Education, College of Arts and Physical Education, Dong-A University, 37 Nakdong-daero 550 beon-gil, Hadan-dong, Saha-gu, Busan 604-714, Korea
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Namjoo E, Shekari M, Piruozi A, Forouzandeh H, Khalafkhany D, Vahedi A, Ahmadi I. Haloperidol's Effect on the Expressions of TGFB, NT-3, and BDNF genes in Cultured Rat Microglia. Basic Clin Neurosci 2020; 11:49-58. [PMID: 32483475 PMCID: PMC7253822 DOI: 10.32598/bcn.11.1.1272.1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2017] [Revised: 01/05/2018] [Accepted: 04/29/2019] [Indexed: 11/20/2022] Open
Abstract
Introduction: Microglia, small glial cells, i.e. mesodermal in origin and found in the brain and spinal cord, play a key role in the maintenance of neurons and immune defense. Haloperidol, an antipsychotic drug, is used to treat numerous neurological and neurodegenerative disorders. Its mechanism is not understood; however, haloperidol may result in Wnt signaling pathway activation. This study aimed to activate the Wnt signaling pathway using haloperidol and determining the effect of GSK3 inhibition on the expression of TGFB, NT-3, and BDNF genes in cultured rat microglia. Methods: Microglia isolation was conducted, and the immunohistochemistry technique was performed to confirm microglia purity. The RNA extraction was followed by cDNA synthesis. Real-time RT-PCR was used to evaluate any significant changes in the expression level of these genes. Results: The three gene expressions in microglia were proportional to the different concentrations of the drug. More concentration of drugs resulted in higher levels of expression of these genes. Besides, the haloperidol did not affect the expression of the beta-actin gene as the reference gene. Conclusion: The obtained results supported the beneficial use of haloperidol in targeted microglia therapy. This study can be a breakthrough in neurology research.
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Affiliation(s)
- Elham Namjoo
- Department of Biology, Faculty of Science, Arsenjan Branch, Islamic Azad University, Fars, Iran
| | - Mohammad Shekari
- Genetics and Molecular Biology, School of Medicine, Hormozgan University of Medical Sciences, Bandar Abbas, Iran
| | - Aliyar Piruozi
- Gerash Cellular and Molecular Research Center, Gerash University of Medical Sciences, Gerash, Iran
| | - Hossein Forouzandeh
- Gerash Cellular and Molecular Research Center, Gerash University of Medical Sciences, Gerash, Iran
| | - Davod Khalafkhany
- Molecular Biology and Genetics Department, Bogazic University, Istanbul, Turkey
| | - Abdolvahid Vahedi
- Genetics and Molecular Biology, School of Medicine, Hormozgan University of Medical Sciences, Bandar Abbas, Iran
| | - Iraj Ahmadi
- Molecular Biology and Genetics Department, Bogazic University, Istanbul, Turkey
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Carrero-Rojas G, Benítez-Temiño B, Pastor AM, Davis López de Carrizosa MA. Muscle Progenitors Derived from Extraocular Muscles Express Higher Levels of Neurotrophins and their Receptors than other Cranial and Limb Muscles. Cells 2020; 9:cells9030747. [PMID: 32197508 PMCID: PMC7140653 DOI: 10.3390/cells9030747] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2020] [Revised: 03/02/2020] [Accepted: 03/17/2020] [Indexed: 01/19/2023] Open
Abstract
Extraocular muscles (EOMs) show resistance to muscle dystrophies and sarcopenia. It has been recently demonstrated that they are endowed with different types of myogenic cells, all of which present an outstanding regenerative potential. Neurotrophins are important modulators of myogenic regeneration and act promoting myoblast proliferation, enhancing myogenic fusion rates and protecting myotubes from inflammatory stimuli. Here, we adapted the pre-plate cell isolation technique to obtain myogenic progenitors from the rat EOMs, and quantified their in vitro expression of neurotrophins and their receptors by RT–qPCR and immunohistochemistry, respectively. The results were compared with the expression on progenitors isolated from buccinator, tongue and limb muscles. Our quantitative analysis of brain-derived neurotrophic factor (BDNF), nerve growth factor (NGF) and neurotrophin-3 (NT-3) transcripts showed, for the first time, that EOMs-derived cells express more of these factors and that they expressed TrkA, but not TrkB and TrkC receptors. On the contrary, the immunofluorescence analysis demonstrated high expression of p75NTR on all myogenic progenitors, with the EOMs-derived cells showing higher expression. Taken together, these results suggest that the intrinsic trophic differences between EOMs-derived myogenic progenitors and their counterparts from other muscles could explain why those cells show higher proliferative and fusion rates, as well as better regenerative properties.
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Luley KB, Biedermann SB, Künstner A, Busch H, Franzenburg S, Schrader J, Grabowski P, Wellner UF, Keck T, Brabant G, Schmid SM, Lehnert H, Ungefroren H. A Comprehensive Molecular Characterization of the Pancreatic Neuroendocrine Tumor Cell Lines BON-1 and QGP-1. Cancers (Basel) 2020; 12:E691. [PMID: 32183367 DOI: 10.3390/cancers12030691] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2020] [Revised: 03/04/2020] [Accepted: 03/12/2020] [Indexed: 02/08/2023] Open
Abstract
Experimental models of neuroendocrine tumor disease are scarce, with only a few existing neuroendocrine tumor cell lines of pancreatic origin (panNET). Their molecular characterization has so far focused on the neuroendocrine phenotype and cancer-related mutations, while a transcription-based assessment of their developmental origin and malignant potential is lacking. In this study, we performed immunoblotting and qPCR analysis of neuroendocrine, epithelial, developmental endocrine-related genes as well as next-generation sequencing (NGS) analysis of microRNAs (miRs) on three panNET cell lines, BON-1, QGP-1, and NT-3. All three lines displayed a neuroendocrine and epithelial phenotype; however, while insulinoma-derived NT-3 cells preferentially expressed markers of mature functional pancreatic β-cells (i.e., INS, MAFA), both BON-1 and QGP-1 displayed high expression of genes associated with immature or non-functional β/δ-cells genes (i.e., NEUROG3), or pancreatic endocrine progenitors (i.e., FOXA2). NGS-based identification of miRs in BON-1 and QGP-1 cells revealed the presence of all six members of the miR-17–92 cluster, which have been implicated in β-cell function and differentiation, but also have roles in cancer being both oncogenic or tumor suppressive. Notably, both BON-1 and QGP-1 cells expressed several miRs known to be negatively associated with epithelial–mesenchymal transition, invasion or metastasis. Moreover, both cell lines failed to exhibit migratory activity in vitro. Taken together, NT-3 cells resemble mature functional β-cells, while both BON-1 and QGP-1 are more similar to immature/non-functional pancreatic β/δ-cells or pancreatic endocrine progenitors. Based on the recent identification of three transcriptional subtypes in panNETs, NT-3 cells resemble the “islet/insulinoma tumors” (IT) subtype, while BON-1 and QGP-1 cells were tentatively classified as “metastasis-like/primary” (MLP). Our results provide a comprehensive characterization of three panNET cell lines and demonstrate their relevance as neuroendocrine tumor models.
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Dravid A, Parittotokkaporn S, Aqrawe Z, O’Carroll SJ, Svirskis D. Determining Neurotrophin Gradients in Vitro To Direct Axonal Outgrowth Following Spinal Cord Injury. ACS Chem Neurosci 2020; 11:121-132. [PMID: 31825204 DOI: 10.1021/acschemneuro.9b00565] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
A spinal cord injury can damage neuronal connections required for both motor and sensory function. Barriers to regeneration within the central nervous system, including an absence of neurotrophic stimulation, impair the ability of injured neurons to reestablish their original circuitry. Exogenous neurotrophin administration has been shown to promote axonal regeneration and outgrowth following injury. The neurotrophins possess chemotrophic properties that guide axons toward the region of highest concentration. These growth factors have demonstrated potential to be used as a therapeutic intervention for orienting axonal growth beyond the injury lesion, toward denervated targets. However, the success of this approach is dependent on the appropriate spatiotemporal distribution of these molecules to ensure detection and navigation by the axonal growth cone. A number of in vitro gradient-based assays have been employed to investigate axonal response to neurotrophic gradients. Such platforms have helped elucidate the potential of applying a concentration gradient of neurotrophins to promote directed axonal regeneration toward a functionally significant target. Here, we review these techniques and the principles of gradient detection in axonal guidance, with particular focus on the use of neurotrophins to orient the trajectory of regenerating axons.
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Affiliation(s)
- Anusha Dravid
- School of Pharmacy, Faculty of Medical and Health Sciences, University of Auckland, Private Bag 92019, Auckland, New Zealand
| | - Sam Parittotokkaporn
- Department of Anatomy and Medical Imaging, School of Medical Sciences, Faculty of Medical and Health Sciences, University of Auckland, Private Bag 92019, Auckland, New Zealand
| | - Zaid Aqrawe
- School of Pharmacy, Faculty of Medical and Health Sciences, University of Auckland, Private Bag 92019, Auckland, New Zealand
- Department of Anatomy and Medical Imaging, School of Medical Sciences, Faculty of Medical and Health Sciences, University of Auckland, Private Bag 92019, Auckland, New Zealand
| | - Simon J. O’Carroll
- Department of Anatomy and Medical Imaging, School of Medical Sciences, Faculty of Medical and Health Sciences, University of Auckland, Private Bag 92019, Auckland, New Zealand
| | - Darren Svirskis
- School of Pharmacy, Faculty of Medical and Health Sciences, University of Auckland, Private Bag 92019, Auckland, New Zealand
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Li H, Yang Z, Wang W, Wang J, Zhang J, Liu J, Yang T, Yang Y, Wei J, Lei D, Yang X. NT-3/TrkC Axis Contributes to the Perineural Invasion and the Poor Prognosis in Human Salivary Adenoid Cystic Carcinoma. J Cancer 2019; 10:6065-6073. [PMID: 31762816 PMCID: PMC6856580 DOI: 10.7150/jca.33635] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2019] [Accepted: 08/25/2019] [Indexed: 12/19/2022] Open
Abstract
The present study was aimed to investigate the role and mechanism of neurotrophin-3 (NT-3) and its specific receptor tropomyosin receptor kinase C (TrkC) in the perineural invasion (PNI) process of the salivary adenoid cystic carcinoma (SACC). The co-cultured system between SACC cells and Schwann cells (SCs) was employed to detect the expression of NT-3 and TrkC. The results of ELISA, qRT-PCR and western blot showed that NT-3 was noticeably elevated in the co-cultured SACC-83 cells, while TrkC was increased in the co-cultured SCs. The results of scratch wound healing, migration, and 3D co-culture assays showed that the directional migration abilities of the co-cultured SACC-83 cells and SCs were significantly increased. Under the stimulation of NT-3, the directional motor ability of SACC-83 cells and SCs was significantly improved, and the apoptosis of SACC-83 cells and SCs were obviously inhibited. In addition, blocking TrkC by its specific inhibitor AZD7451 could significantly inhibit these effects. Immunohistochemistry staining showed that the positive expression of NT-3 (88.5%) and TrkC (92.3%) was significantly correlated with the PNI in SACC specimens (P < 0.05). Additionally, the high expression of NT-3 was significantly associated with the poor prognosis of SACC patients (P < 0.05). The present study indicated that NT-3/TrkC axis contributed to the PNI progression and the poor prognosis of SACC via regulating the interaction between SACC cells and SCs. Interruption of the interaction between SACC cells and SCs by blocking the NT-3/TrkC axis might be an effective strategy for anti-PNI therapy in SACC.
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Affiliation(s)
- Huan Li
- State Key Laboratory of Military Stomatology and National Clinical Research Center for Oral Diseases, and Shaanxi Clinical Research Center for Oral Diseases, Department of Oral and Maxillofacial Surgery, School of Stomatology, Fourth Military Medical University, Xi'an 710032, China
| | - Zihui Yang
- State Key Laboratory of Military Stomatology and National Clinical Research Center for Oral Diseases, and Shaanxi Clinical Research Center for Oral Diseases, Department of Oral and Maxillofacial Surgery, School of Stomatology, Fourth Military Medical University, Xi'an 710032, China
| | - Weiqi Wang
- State Key Laboratory of Military Stomatology and National Clinical Research Center for Oral Diseases, and Shaanxi Clinical Research Center for Oral Diseases, Department of Oral and Maxillofacial Surgery, School of Stomatology, Fourth Military Medical University, Xi'an 710032, China
| | - Jun Wang
- State Key Laboratory of Military Stomatology and National Clinical Research Center for Oral Diseases, and Shaanxi Clinical Research Center for Oral Diseases, Department of Oral and Maxillofacial Surgery, School of Stomatology, Fourth Military Medical University, Xi'an 710032, China
| | - Jianying Zhang
- State Key Laboratory of Military Stomatology and National Clinical Research Center for Oral Diseases, and Shaanxi Clinical Research Center for Oral Diseases, Department of Oral and Maxillofacial Surgery, School of Stomatology, Fourth Military Medical University, Xi'an 710032, China
| | - Junye Liu
- Department of Radiation Medicine, Fourth Military Medical University, Xi'an 710032, China
| | - Tao Yang
- State Key Laboratory of Military Stomatology and National Clinical Research Center for Oral Diseases, and Shaanxi Clinical Research Center for Oral Diseases, Department of Oral and Maxillofacial Surgery, School of Stomatology, Fourth Military Medical University, Xi'an 710032, China
| | - Yaowu Yang
- State Key Laboratory of Military Stomatology and National Clinical Research Center for Oral Diseases, and Shaanxi Clinical Research Center for Oral Diseases, Department of Oral and Maxillofacial Surgery, School of Stomatology, Fourth Military Medical University, Xi'an 710032, China
| | - Jianhua Wei
- State Key Laboratory of Military Stomatology and National Clinical Research Center for Oral Diseases, and Shaanxi Clinical Research Center for Oral Diseases, Department of Oral and Maxillofacial Surgery, School of Stomatology, Fourth Military Medical University, Xi'an 710032, China
| | - Delin Lei
- State Key Laboratory of Military Stomatology and National Clinical Research Center for Oral Diseases, and Shaanxi Clinical Research Center for Oral Diseases, Department of Oral and Maxillofacial Surgery, School of Stomatology, Fourth Military Medical University, Xi'an 710032, China
| | - Xinjie Yang
- State Key Laboratory of Military Stomatology and National Clinical Research Center for Oral Diseases, and Shaanxi Clinical Research Center for Oral Diseases, Department of Oral and Maxillofacial Surgery, School of Stomatology, Fourth Military Medical University, Xi'an 710032, China
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Koshkina A, Dudnichenko T, Baranenko D, Fedotova J, Drago F. Effects of Vitamin D 3 in Long-Term Ovariectomized Rats Subjected to Chronic Unpredictable Mild Stress: BDNF, NT-3, and NT-4 Implications. Nutrients 2019; 11:E1726. [PMID: 31357443 DOI: 10.3390/nu11081726] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2019] [Revised: 07/23/2019] [Accepted: 07/24/2019] [Indexed: 01/10/2023] Open
Abstract
The purpose of this study was to explore the antidepressant-like effects of vitamin D3 at different doses (1.0, 2.5, and 5.0 mg/kg sc) on a model of depression produced by chronic unpredictable mild stress (CUMS) for 28 days in long-term (3 months) ovariectomized (OVX) adult rats. Sucrose preference (SPT), forced swimming (FST) and open-field (OFT) tests were conducted to examine the depression-like state. Serum corticosterone/adrenocorticotrophic hormone (ACTH) levels and hippocampal brain-derived neurotrophic factor (BDNF) and neurotrophin (NT)-3/NT-4 expressions by ELISA kits and/or western blotting were determined to assess the possible mechanisms of the vitamin D3 effects on the depression-like profile in long-term OVX rats subjected to CUMS. The results showed that vitamin D3 (5.0 mg/kg), as well as fluoxetine treatment, considerably reversed the depression-like state in the SPT and FST, decreased serum corticosterone/ACTH levels, and increased BDNF and NT-3/NT-4 levels in the hippocampus of long-term OVX rats compared to OVX rats with CUMS (p < 0.05). Thus, a high dose of vitamin D3 (5.0 mg/kg sc) could improve the depression-like profile in long-term OVX adult female rats subjected to the CUMS procedure, which might be mediated by the regulation of BDNF and the NT-3/NT-4 signaling pathways in the hippocampus, as well as the corticosterone/ACTH levels of the blood serum.
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Ma H, Wang Y, Xue Y, Huang D, Kong Y, Zhao X, Zhang M. The effect of Xinkeshu tablets on depression and anxiety symptoms in patients with coronary artery disease: Results from a double-blind, randomized, placebo-controlled study. Biomed Pharmacother 2019; 112:108639. [PMID: 30784924 DOI: 10.1016/j.biopha.2019.108639] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2018] [Revised: 01/25/2019] [Accepted: 01/28/2019] [Indexed: 02/05/2023] Open
Abstract
A large proportion of patients with coronary artery disease (CAD) suffer from depression or anxiety symptoms and this is associated with increased mortality [1]. This double-blinded, randomized, placebo-controlled, clinical trial (ChiCTR-IPR-17010940) aimed to explore whether Xinkeshu tablets can reduce anxiety or depressive symptoms in CAD patients and how this is related to the concentration of plasma cytokines. Sixty patients with CAD anda Hospital Anxiety and Depression Scale (HADS-a/HADS-d) score of ≥8 were treated with Xinkeshu tablets or placebo for 12 weeks following percutaneous revascularization. Depressive/anxiety symptoms and the levels of 440 peripheral blood cytokines were evaluated at baseline and after 12 weeks treatment. Results showed significantly lower (P < 0.05) HADS-a/HADS-d and PHQ-9 scores in CAD patients treated with Xinkeshu tablets than in those who received placebo. These improvements were associated with changes in certain peripheral blood cytokines; most notably trappin-2, adiponectin, interleukin 1β (IL-1β), thrombopoietin, activated leukocyte cell adhesion molecule (ALCAM), neurotrophin-3 (NT-3), and transferrin. A significant correlation between anxiety/depression symptoms and trappin-2, NT-3, transferrin, and ALCAM (p < 0.05) were observed in an independent cohort of patients with CAD. These findings were in-keeping with the anti-depressive effects of Xinkeshu tablets. This trial demonstrates that Xinkeshu tablets can improve anxiety and depression symtoms effectively address in patients with coronary heart disease possibly through increasing the blood ratio of anti-inflammatory:pro-inflammatory cytokines.
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Affiliation(s)
- Huan Ma
- Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangdong, China
| | - Yu Wang
- Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangdong, China; Shantou University Medical College, Shantou, Guangdong, China
| | - YunLian Xue
- Department of Statistics, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong, China
| | - Daozheng Huang
- Intensive Care Unit of Guangdong Geriatric Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Yongjie Kong
- The Department of Critical Care Medicine, Guangdong Provincial Hospital of Chinese Medicine, 2nd Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangdong Provincial Academy of Chinese Medical Sciences, Guangzhou, China
| | - Xujie Zhao
- The Department of Critical Care Medicine, Guangdong Provincial Hospital of Chinese Medicine, 2nd Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangdong Provincial Academy of Chinese Medical Sciences, Guangzhou, China
| | - Minzhou Zhang
- The Department of Critical Care Medicine, Guangdong Provincial Hospital of Chinese Medicine, 2nd Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangdong Provincial Academy of Chinese Medical Sciences, Guangzhou, China.
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Shinoda Y, Sadakata T, Yagishita K, Kinameri E, Katoh-Semba R, Sano Y, Furuichi T. Aspects of excitatory/inhibitory synapses in multiple brain regions are correlated with levels of brain-derived neurotrophic factor/neurotrophin-3. Biochem Biophys Res Commun 2018; 509:429-434. [PMID: 30594389 DOI: 10.1016/j.bbrc.2018.12.100] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2018] [Accepted: 12/14/2018] [Indexed: 12/29/2022]
Abstract
Appropriate synapse formation during development is necessary for normal brain function, and synapse impairment is often associated with brain dysfunction. Brain-derived neurotrophic factor (BDNF) and neurotrophin-3 (NT-3) are key factors in regulating synaptic development. We previously reported that BDNF/NT-3 secretion was enhanced by calcium-dependent activator protein for secretion 2 (CADPS2). Although BDNF/NT-3 and CADPS2 are co-expressed in various brain regions, the effect of Cadps2-deficiency on brain region-specific BDNF/NT-3 levels and synaptic development remains elusive. Here, we show developmental changes of BDNF/NT-3 levels and we assess disruption of excitatory/inhibitory synapses in multiple brain regions (cerebellum, hypothalamus, striatum, hippocampus, parietal cortex and prefrontal cortex) of Cadps2 knockout (KO) mice compared with wild-type (WT) mice. Compared with WT, BDNF levels in KO mice were reduced in young/adult hippocampus, but increased in young hypothalamus, while NT-3 levels were reduced in adult cerebellum and young hippocampus, but increased in adult parietal cortex. Immunofluorescence of vGluT1, an excitatory synapse marker, and vGAT, an inhibitory synapse marker, in adult KO showed that vGluT1 was higher in the cerebellum and parietal cortex but lower in the hippocampus, whereas vGAT was lower in the hippocampus and parietal cortex compared with WT. Immunolabeling for both vGluT1 and vGAT was increased in the parietal cortex but vGAT was decreased in the cerebellum in adult KO compared with WT. These data suggest that CADPS2-mediated secretion of BDNF/NT-3 may be involved in development and maturation of synapses and in the balance between inhibitory and excitatory synapses.
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Affiliation(s)
- Yo Shinoda
- Department of Environmental Health, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, Hachioji, Tokyo, 192-0392, Japan; Department of Applied Biological Science, Faculty of Science and Technology, Tokyo University of Science, Noda, Chiba, 278-8510, Japan; Laboratory for Molecular Neurogenesis, RIKEN Brain Science Institute, Wako, Saitama, 351-0198, Japan.
| | - Tetsushi Sadakata
- Laboratory for Molecular Neurogenesis, RIKEN Brain Science Institute, Wako, Saitama, 351-0198, Japan; Education and Research Support Center, Gunma University Graduate School of Medicine, Maebashi, Gunma, 371-8511, Japan
| | - Kaori Yagishita
- Department of Applied Biological Science, Faculty of Science and Technology, Tokyo University of Science, Noda, Chiba, 278-8510, Japan
| | - Emi Kinameri
- Laboratory for Molecular Neurogenesis, RIKEN Brain Science Institute, Wako, Saitama, 351-0198, Japan
| | - Ritsuko Katoh-Semba
- Department of Applied Biological Science, Faculty of Science and Technology, Tokyo University of Science, Noda, Chiba, 278-8510, Japan; Laboratory for Molecular Neurogenesis, RIKEN Brain Science Institute, Wako, Saitama, 351-0198, Japan
| | - Yoshitake Sano
- Department of Applied Biological Science, Faculty of Science and Technology, Tokyo University of Science, Noda, Chiba, 278-8510, Japan
| | - Teiichi Furuichi
- Department of Applied Biological Science, Faculty of Science and Technology, Tokyo University of Science, Noda, Chiba, 278-8510, Japan; Laboratory for Molecular Neurogenesis, RIKEN Brain Science Institute, Wako, Saitama, 351-0198, Japan.
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Oudega M, Hao P, Shang J, Haggerty AE, Wang Z, Sun J, Liebl DJ, Shi Y, Cheng L, Duan H, Sun YE, Li X, Lemmon VP. Validation study of neurotrophin-3-releasing chitosan facilitation of neural tissue generation in the severely injured adult rat spinal cord. Exp Neurol 2018; 312:51-62. [PMID: 30471251 DOI: 10.1016/j.expneurol.2018.11.003] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2018] [Revised: 11/01/2018] [Accepted: 11/08/2018] [Indexed: 12/31/2022]
Abstract
It was previously reported that a tube holding chitosan carriers loaded with neurotrophin-3 (NT-3), after insertion into a 5 mm long transection gap in the adult rat spinal cord, triggered de novo neural tissue generation and functional recovery. Here, we report an effort to validate these findings using stringent blinding methodologies, which are crucial for robustness in reproducing biomedical studies. Radio frequency identification (RFID) chips were utilized to label rats that were randomly assigned into three experimental groups: transection with chitosan-NT-3 implant (C-NT3), transection only (T-controls), and laminectomy only (S-controls), blinding the experimenters to the treatments. Three months after surgery, animals only known by their RFID were functionally, electrophysiologically, and anatomically assessed. The data were then collected into the proper groups and statistically analyzed. Neural tissue with nestin-, Tuj1-, and NeuN-positive cells was found bridging the transection gap in C-NT3 rats, but not in T-controls. Motor- and somatosensory-evoked potentials were detected in C-NT3 rats and S-controls, but not in T-controls. Hind limb movement was significantly better in C-NT3 rats compared with T-controls. Our validation study indicates that C-NT3 implants facilitate neural tissue generation, at least in part, by eliciting endogenous neurogenesis. Our data support the use of C-NT3 implants for tissue remodeling in the injured spinal cord.
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Affiliation(s)
- Martin Oudega
- The Miami Project to Cure Paralysis, University of Miami Miller School of Medicine, 1095 NW 14th Terrace, Miami, FL 33136-1060, United States; Department of Neurological Surgery, University of Miami Miller School of Medicine, Miami, FL 33136, United States; Bruce W. Carter Department of Veterans Affairs Medical Center, Miami, FL 33136, United States.
| | - Peng Hao
- Department of Neurobiology, School of Basic Medical Sciences, Capital Medical University, Beijing 100069, China
| | - Junkui Shang
- Department of Neurobiology, School of Basic Medical Sciences, Capital Medical University, Beijing 100069, China
| | - Agnes E Haggerty
- The Miami Project to Cure Paralysis, University of Miami Miller School of Medicine, 1095 NW 14th Terrace, Miami, FL 33136-1060, United States
| | - Zijue Wang
- Department of Neurobiology, School of Basic Medical Sciences, Capital Medical University, Beijing 100069, China; Beijing International Cooperation Bases for Science and Technology on Biomaterials and Neural Regeneration, Beijing Key Laboratory for Biomaterials and Neural Regeneration, Beijing Advanced Innovation Center for Big Data-Based Precision Medicine, Beijing Advanced Innovation Center for Biomedical Engineering, School of Biological Science and Medical Engineering, Beihang University, Beijing 100083, China
| | - Jian Sun
- Department of Neurobiology, School of Basic Medical Sciences, Capital Medical University, Beijing 100069, China
| | - Daniel J Liebl
- The Miami Project to Cure Paralysis, University of Miami Miller School of Medicine, 1095 NW 14th Terrace, Miami, FL 33136-1060, United States; Department of Neurological Surgery, University of Miami Miller School of Medicine, Miami, FL 33136, United States
| | - Yan Shi
- The Miami Project to Cure Paralysis, University of Miami Miller School of Medicine, 1095 NW 14th Terrace, Miami, FL 33136-1060, United States
| | - Liming Cheng
- Division of Spine Surgery, Department of Orthopedics, Tongji Hospital, Tongji University School of Medicine, Shanghai 200065, China; Institute of Spine and Spine Cord Injury of Tongji University, Shanghai 200065, China; Translational Stem Cell Research Center, Tongji Hospital, Tongji University School of Medicine, Shanghai 200065, China
| | - Hongmei Duan
- Department of Neurobiology, School of Basic Medical Sciences, Capital Medical University, Beijing 100069, China
| | - Yi Eve Sun
- Translational Stem Cell Research Center, Tongji Hospital, Tongji University School of Medicine, Shanghai 200065, China; Department of Psychiatry and Biobehavioral Sciences, UCLA Medical School, Los Angeles, CA 90095, United States
| | - Xiaoguang Li
- Department of Neurobiology, School of Basic Medical Sciences, Capital Medical University, Beijing 100069, China; Beijing International Cooperation Bases for Science and Technology on Biomaterials and Neural Regeneration, Beijing Key Laboratory for Biomaterials and Neural Regeneration, Beijing Advanced Innovation Center for Big Data-Based Precision Medicine, Beijing Advanced Innovation Center for Biomedical Engineering, School of Biological Science and Medical Engineering, Beihang University, Beijing 100083, China
| | - Vance P Lemmon
- The Miami Project to Cure Paralysis, University of Miami Miller School of Medicine, 1095 NW 14th Terrace, Miami, FL 33136-1060, United States; Department of Neurological Surgery, University of Miami Miller School of Medicine, Miami, FL 33136, United States
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Sahenk Z, Yalvac ME, Amornvit J, Arnold WD, Chen L, Shontz KM, Lewis S. Efficacy of exogenous pyruvate in Trembler J mouse model of Charcot-Marie-Tooth neuropathy. Brain Behav 2018; 8:e01118. [PMID: 30239155 PMCID: PMC6192403 DOI: 10.1002/brb3.1118] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/26/2018] [Revised: 08/09/2018] [Accepted: 08/14/2018] [Indexed: 12/11/2022] Open
Abstract
INTRODUCTION Classic Charcot-Marie-Tooth (CMT) neuropathies including those with Schwann cell genetic defects exhibit a length-dependent process affecting the distal axon. Energy deprivation in the distal axon has been the proposed mechanism accounting for length-dependent distal axonal degeneration. We hypothesized that pyruvate, an intermediate glycolytic product, could restore nerve function, supplying lost energy to the distal axon. METHODS To test this possibility, we supplied pyruvate to the drinking water of the Trembler-J (TrJ ) mouse and assessed efficacy based on histology, electrophysiology, and functional outcomes. Pyruvate outcomes were compared with untreated TrJ controls alone or adeno-associated virus mediated NT-3 gene therapy (AAV1.NT-3)/pyruvate combinatorial approach. RESULTS Pyruvate supplementation resulted increased myelinated fiber (MF) densities and myelin thickness in sciatic nerves. Combining pyruvate with proven efficacy from AAV1.tMCK.NT-3 gene therapy provided additional benefits showing improved compound muscle action potential amplitudes and nerve conduction velocities compared to pyruvate alone cohort. The end point motor performance of both the pyruvate and the combinatorial therapy cohorts was better than untreated TrJ controls. In a unilateral sciatic nerve crush paradigm, pyruvate supplementation improved myelin-based outcomes in both regenerating and the contralateral uncrushed nerves. CONCLUSIONS This proof of principle study demonstrates that exogenous pyruvate alone or as adjunct therapy in TrJ may have clinical implications and is a candidate therapy for CMT neuropathies without known treatment.
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Affiliation(s)
- Zarife Sahenk
- Center for Gene TherapyThe Research Institute at Nationwide Children’s HospitalColumbusOhio
- Department of Pediatrics and NeurologyNationwide Children’s Hospital and The Ohio State UniversityColumbusOhio
- Department of Pathology and Laboratory MedicineNationwide Children’s HospitalColumbusOhio
- Department of NeurologyThe Ohio State UniversityColumbusOhio
| | - Mehmet E. Yalvac
- Center for Gene TherapyThe Research Institute at Nationwide Children’s HospitalColumbusOhio
| | - Jakkrit Amornvit
- Center for Gene TherapyThe Research Institute at Nationwide Children’s HospitalColumbusOhio
- King Chulalongkorn Memorial HospitalChulalongkorn UniversityBangkokThailand
- Department of Medicine, Faculty of MedicineChulalongkorn UniversityBangkokThailand
| | - William David Arnold
- Department of NeurologyThe Ohio State UniversityColumbusOhio
- Department of Physical Medicine and RehabilitationThe Ohio State University ColumbusOhio
| | - Lei Chen
- Center for Gene TherapyThe Research Institute at Nationwide Children’s HospitalColumbusOhio
| | - Kimberly M. Shontz
- Center for Gene TherapyThe Research Institute at Nationwide Children’s HospitalColumbusOhio
| | - Sarah Lewis
- Center for Gene TherapyThe Research Institute at Nationwide Children’s HospitalColumbusOhio
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Wang Y, Wu W, Wu X, Sun Y, Zhang YP, Deng LX, Walker MJ, Qu W, Chen C, Liu NK, Han Q, Dai H, Shields LB, Shields CB, Sengelaub DR, Jones KJ, Smith GM, Xu XM. Remodeling of lumbar motor circuitry remote to a thoracic spinal cord injury promotes locomotor recovery. eLife 2018; 7:39016. [PMID: 30207538 PMCID: PMC6170189 DOI: 10.7554/elife.39016] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2018] [Accepted: 09/09/2018] [Indexed: 12/18/2022] Open
Abstract
Retrogradely-transported neurotrophin signaling plays an important role in regulating neural circuit specificity. Here we investigated whether targeted delivery of neurotrophin-3 (NT-3) to lumbar motoneurons (MNs) caudal to a thoracic (T10) contusive spinal cord injury (SCI) could modulate dendritic patterning and synapse formation of the lumbar MNs. In vitro, Adeno-associated virus serotype two overexpressing NT-3 (AAV-NT-3) induced NT-3 expression and neurite outgrowth in cultured spinal cord neurons. In vivo, targeted delivery of AAV-NT-3 into transiently demyelinated adult mouse sciatic nerves led to the retrograde transportation of NT-3 to the lumbar MNs, significantly attenuating SCI-induced lumbar MN dendritic atrophy. NT-3 enhanced sprouting and synaptic formation of descending serotonergic, dopaminergic, and propriospinal axons on lumbar MNs, parallel to improved behavioral recovery. Thus, retrogradely transported NT-3 stimulated remodeling of lumbar neural circuitry and synaptic connectivity remote to a thoracic SCI, supporting a role for retrograde transport of NT-3 as a potential therapeutic strategy for SCI.
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Affiliation(s)
- Ying Wang
- Spinal Cord and Brain Injury Research Group, Stark Neurosciences Research Institute, Indiana University School of Medicine, Indianapolis, United States.,Department of Neurological Surgery, Indiana University School of Medicine, Indianapolis, United States.,Neural Tissue Engineering Research Institute, Mudanjiang College of Medicine, Mudanjiang, China
| | - Wei Wu
- Spinal Cord and Brain Injury Research Group, Stark Neurosciences Research Institute, Indiana University School of Medicine, Indianapolis, United States.,Department of Neurological Surgery, Indiana University School of Medicine, Indianapolis, United States
| | - Xiangbing Wu
- Spinal Cord and Brain Injury Research Group, Stark Neurosciences Research Institute, Indiana University School of Medicine, Indianapolis, United States.,Department of Neurological Surgery, Indiana University School of Medicine, Indianapolis, United States
| | - Yan Sun
- Spinal Cord and Brain Injury Research Group, Stark Neurosciences Research Institute, Indiana University School of Medicine, Indianapolis, United States.,Department of Neurological Surgery, Indiana University School of Medicine, Indianapolis, United States.,Department of Anatomy, Histology and Embryology, School of Basic Medical Sciences, Fudan University, Shanghai, China
| | - Yi P Zhang
- Norton Neuroscience Institute, Norton Healthcare, Louisville, United States
| | - Ling-Xiao Deng
- Spinal Cord and Brain Injury Research Group, Stark Neurosciences Research Institute, Indiana University School of Medicine, Indianapolis, United States.,Department of Neurological Surgery, Indiana University School of Medicine, Indianapolis, United States
| | - Melissa Jane Walker
- Spinal Cord and Brain Injury Research Group, Stark Neurosciences Research Institute, Indiana University School of Medicine, Indianapolis, United States.,Department of Neurological Surgery, Indiana University School of Medicine, Indianapolis, United States
| | - Wenrui Qu
- Spinal Cord and Brain Injury Research Group, Stark Neurosciences Research Institute, Indiana University School of Medicine, Indianapolis, United States.,Department of Neurological Surgery, Indiana University School of Medicine, Indianapolis, United States
| | - Chen Chen
- Spinal Cord and Brain Injury Research Group, Stark Neurosciences Research Institute, Indiana University School of Medicine, Indianapolis, United States.,Department of Neurological Surgery, Indiana University School of Medicine, Indianapolis, United States.,Program in Medical Neuroscience, Paul and Carole Stark Neurosciences Research Institute, Indiana University School of Medicine, Indiana, United States
| | - Nai-Kui Liu
- Spinal Cord and Brain Injury Research Group, Stark Neurosciences Research Institute, Indiana University School of Medicine, Indianapolis, United States.,Department of Neurological Surgery, Indiana University School of Medicine, Indianapolis, United States
| | - Qi Han
- Spinal Cord and Brain Injury Research Group, Stark Neurosciences Research Institute, Indiana University School of Medicine, Indianapolis, United States.,Department of Neurological Surgery, Indiana University School of Medicine, Indianapolis, United States
| | - Heqiao Dai
- Spinal Cord and Brain Injury Research Group, Stark Neurosciences Research Institute, Indiana University School of Medicine, Indianapolis, United States.,Department of Neurological Surgery, Indiana University School of Medicine, Indianapolis, United States
| | - Lisa Be Shields
- Norton Neuroscience Institute, Norton Healthcare, Louisville, United States
| | | | - Dale R Sengelaub
- Program in Neuroscience, Department of Psychological and Brain Sciences, Indiana University, Bloomington, United States
| | - Kathryn J Jones
- Department of Anatomy and Cell Biology, Indiana University School of Medicine, Indianapolis, United States
| | - George M Smith
- Shriners Hospitals Pediatric Research Center, Lewis Katz School of Medicine, Temple University, Philadelphia, United States
| | - Xiao-Ming Xu
- Spinal Cord and Brain Injury Research Group, Stark Neurosciences Research Institute, Indiana University School of Medicine, Indianapolis, United States.,Department of Neurological Surgery, Indiana University School of Medicine, Indianapolis, United States.,Department of Anatomy and Cell Biology, Indiana University School of Medicine, Indianapolis, United States
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41
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Maruccio L, Lucini C, de Girolamo P, Avallone L, Solcan C, Nechita LE, Castaldo L. Neurotrophins and Trk receptors in the developing and adult ovary of Coturnix coturnix japonica. Ann Anat 2018; 219:35-43. [PMID: 29842992 DOI: 10.1016/j.aanat.2018.04.008] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2017] [Revised: 02/20/2018] [Accepted: 04/03/2018] [Indexed: 12/14/2022]
Abstract
NGF, BDNF, NT-3 and their specific receptors TrkA, TrkB and TrkC are known to be involved in the development and maintenance of vertebrates' nervous system. However, these molecules play a role also in non-neuronal tissue, such as in the reproductive system. In this study we investigated the presence and localization of neurotrophins and Trk receptors to unravel their potential role in the developing and adult ovary of Japanese quail, a model species well suited for reproduction studies. Western blotting analysis on ovaries of three month old quails in the period of egg laying showed the presence of pro and mature forms of neurotrophins and splice variants of Trk receptors. Immunohistochemical investigation reported that in embryonic ovaries from the 9th day of incubation to the hatching NGF and NT-3 were observed in the cortical and medullar areas respectively, whereas Trk receptors were observed in both areas. In adult ovary, all NTs were detected in glandular stromal cells, NGF and NT-3 also in the nervous component. Regarding follicle components, NGF and BDNF were observed in oocytes and follicular cells. All TrK receptors were present in nervous components and only TrkA in glandular stromal cells. In follicles, TrkA was present in oocyte cytoplasm and TrkB in theca cells. The results suggest an involvement of the neurotrophin system in the quail ovary physiology, promoting the oocyte development and follicular organization in the embryo, as well as oocyte and follicular maturation in adults.
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Gómez-Pineda VG, Torres-Cruz FM, Vivar-Cortés CI, Hernández-Echeagaray E. Neurotrophin-3 restores synaptic plasticity in the striatum of a mouse model of Huntington's disease. CNS Neurosci Ther 2018; 24:353-363. [PMID: 29453932 DOI: 10.1111/cns.12824] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2017] [Revised: 01/18/2018] [Accepted: 01/19/2018] [Indexed: 11/30/2022] Open
Abstract
AIMS Neurotrophin-3 (NT-3) is expressed in the mouse striatum; however, it is not clear the NT-3 role in striatal physiology. The expression levels of mRNAs and immune localization of the NT-3 protein and its receptor TrkC are altered in the striatum following damage induced by an in vivo treatment with 3-nitropropionic acid (3-NP), a mitochondrial toxin used to mimic the histopathological hallmarks of Huntington's disease (HD). The aim of this study was to evaluate the role of NT-3 on corticostriatal synaptic transmission and its plasticity in both the control and damaged striatum. METHODS Corticostriatal population spikes were electrophysiologically recorded and striatal synaptic plasticity was induced by high-frequency stimulation. Further, the phosphorylation status of Trk receptors was tested under conditions that imitated electrophysiological experiments. RESULTS NT-3 modulates both synaptic transmission and plasticity in the striatum; nonetheless, synaptic plasticity was modified by the 3-NP treatment, where instead of producing striatal long-term depression (LTD), long-term potentiation (LTP) was obtained. Moreover, the administration of NT-3 in the recording bath restored the plasticity observed under control conditions (LTD) in this model of striatal degeneration. CONCLUSION NT-3 modulates corticostriatal transmission through TrkB stimulation and restores striatal LTD by signaling through its TrkC receptor.
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Affiliation(s)
- Victor G Gómez-Pineda
- Laboratorio de neurofisiología del desarrollo y la neurodegeneración, Unidad de Investigación en Biomedicina, Universidad Nacional Autónoma de México, FES Iztacala, Tlalnepantla, México
| | - Francisco M Torres-Cruz
- Laboratorio de neurofisiología del desarrollo y la neurodegeneración, Unidad de Investigación en Biomedicina, Universidad Nacional Autónoma de México, FES Iztacala, Tlalnepantla, México
| | - César I Vivar-Cortés
- Laboratorio de neurofisiología del desarrollo y la neurodegeneración, Unidad de Investigación en Biomedicina, Universidad Nacional Autónoma de México, FES Iztacala, Tlalnepantla, México
| | - Elizabeth Hernández-Echeagaray
- Laboratorio de neurofisiología del desarrollo y la neurodegeneración, Unidad de Investigación en Biomedicina, Universidad Nacional Autónoma de México, FES Iztacala, Tlalnepantla, México
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Boldrup L, Troiano G, Gu X, Coates P, Fåhraeus R, Wilms T, Norberg-Spaak L, Wang L, Nylander K. Evidence that circulating proteins are more promising than miRNAs for identification of patients with squamous cell carcinoma of the tongue. Oncotarget 2017; 8:103437-103448. [PMID: 29262574 PMCID: PMC5732740 DOI: 10.18632/oncotarget.21402] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2017] [Accepted: 09/13/2017] [Indexed: 01/30/2023] Open
Abstract
Despite intense research, squamous cell carcinoma of the tongue remains a devastating disease with a five-year survival of around 60%. Late detection and recurrence are the main causes for poor survival. The identification of circulating factors for early diagnosis and/or prognosis of cancer is a rapidly evolving field of interest, with the hope of finding stable and reliable markers of clinical significance. The aim of this study was to evaluate circulating miRNAs and proteins as potential factors for distinguishing patients with tongue squamous cell carcinoma from healthy controls. Array-based profiling of 372 miRNAs in plasma samples showed broad variations between different patients and did not show any evidence for their use in diagnosis of tongue cancer. Although one miRNA, miR-150, was significantly down-regulated in plasma from patients compared to controls. Surprisingly, the corresponding tumor tissue showed an up-regulation of miR-150. Among circulating proteins, 23 were identified as potential markers of squamous cell carcinoma of the tongue. These findings imply that circulating proteins are a more promising source of biomarkers for tongue squamous cell carcinomas than circulating miRNAs. The data also highlight that circulating markers are not always directly associated with tumor cell properties.
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Affiliation(s)
- Linda Boldrup
- Department of Medical Biosciences/Pathology, Umeå University, SE - 901 85 Umeå, Sweden
| | - Giuseppe Troiano
- Department of Clinical and Experimental Medicine, University of Foggia, 71122 Foggia, Italy
| | - Xiaolian Gu
- Department of Medical Biosciences/Pathology, Umeå University, SE - 901 85 Umeå, Sweden
| | - Philip Coates
- RECAMO, Masaryk Memorial Cancer Institute, 656 53 Brno, Czech Republic
| | - Robin Fåhraeus
- Department of Medical Biosciences/Pathology, Umeå University, SE - 901 85 Umeå, Sweden.,RECAMO, Masaryk Memorial Cancer Institute, 656 53 Brno, Czech Republic.,Institut de Génétique Moléculaire, Université Paris 7, Hôpital St. Louis, 75010 Paris, France
| | - Torben Wilms
- Department of Clinical Sciences/ENT, Umeå University, SE - 901 85 Umeå, Sweden
| | - Lena Norberg-Spaak
- Department of Clinical Sciences/ENT, Umeå University, SE - 901 85 Umeå, Sweden
| | - Lixiao Wang
- Department of Medical Biosciences/Pathology, Umeå University, SE - 901 85 Umeå, Sweden
| | - Karin Nylander
- Department of Medical Biosciences/Pathology, Umeå University, SE - 901 85 Umeå, Sweden
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Ekman M, Zhu B, Swärd K, Uvelius B. Neurite outgrowth in cultured mouse pelvic ganglia - Effects of neurotrophins and bladder tissue. Auton Neurosci 2017; 205:41-49. [PMID: 28347639 DOI: 10.1016/j.autneu.2017.03.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2016] [Revised: 03/14/2017] [Accepted: 03/17/2017] [Indexed: 10/19/2022]
Abstract
Neurotrophic factors regulate survival and growth of neurons. The urinary bladder is innervated via both sympathetic and parasympathetic neurons located in the major pelvic ganglion. The aim of the present study was to characterize the effects of the neurotrophins nerve growth factor (NGF), brain derived neurotrophic factor (BDNF) and neurotrophin 3 (NT-3) on the sprouting rate of sympathetic and parasympathetic neurites from the female mouse ganglion. The pelvic ganglion was dissected out and attached to a petri dish and cultured in vitro. All three factors (BDNF, NT-3 and NGF) stimulated neurite outgrowth of both sympathetic and parasympathetic neurites although BDNF and NT-3 had a higher stimulatory effect on parasympathetic ganglion cells. The neurotrophin receptors TrkA, TrkB and TrkC were all expressed in neurons of the ganglia. Co-culture of ganglia with urinary bladder tissue, but not diaphragm tissue, increased the sprouting rate of neurites. Active forms of BDNF and NT-3 were detected in urinary bladder tissue using western blotting whereas tissue from the diaphragm expressed NGF. Neurite outgrowth from the pelvic ganglion was inhibited by a TrkB receptor antagonist. We therefore suggest that the urinary bladder releases trophic factors, including BDNF and NT-3, which regulate neurite outgrowth via activation of neuronal Trk-receptors. These findings could influence future strategies for developing pharmaceuticals to improve re-innervation due to bladder pathologies.
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Affiliation(s)
- Mari Ekman
- Department of Experimental Medical Science, Lund University, Lund, Sweden; Department of Biology, Lund University, Lund, Sweden.
| | - Baoyi Zhu
- Department of Experimental Medical Science, Lund University, Lund, Sweden; Department of Urology, The Sixth Affiliated Hospital of Guangzhou Medical University, Guang Dong, China
| | - Karl Swärd
- Department of Experimental Medical Science, Lund University, Lund, Sweden
| | - Bengt Uvelius
- Department of Urology, Clinical Sciences, Lund University, Lund, Sweden
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Kalayci F, Ozdemir A, Saribas S, Yuksel P, Ergin S, Kuskucu AM, Poyraz CA, Balcioglu I, Alpay N, Kurt A, Sezgin Z, Kocak BT, Icel RS, Can G, Tokman HB, Kocazeybek B. The relationship of Chlamydophila pneumoniae with schizophrenia: The role of brain-derived neurotrophic factor (BDNF) and neurotrophin-3 ( NT-3) in this relationship. Rev Argent Microbiol 2017; 49:39-49. [PMID: 28256360 DOI: 10.1016/j.ram.2016.09.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2015] [Revised: 09/06/2016] [Accepted: 09/12/2016] [Indexed: 10/20/2022] Open
Abstract
Several pathogens have been suspected of playing a role in the pathogenesis of schizophrenia. Chronic inflammation has been proposed to occur as a result of persistent infection caused by Chlamydophila pneumoniae cells that reside in brain endothelial cells for many years. It was recently hypothesized that brain-derived neurotrophic factor (BDNF) and neurotrophin-3 (NT-3) may play prominent roles in the development of schizophrenia. NT-3 and BDNF levels have been suggested to change in response to various manifestations of infection. Therefore, we aimed to elucidate the roles of BDNF and NT3 in the schizophrenia-C. pneumoniae infection relationship. RT-PCR, immunofluorescence and ELISA methods were used. Fifty patients suffering from schizophrenia and 35 healthy individuals were included as the patient group (PG) and the healthy control group (HCG), respectively. We detected persistent infection in 14 of the 50 individuals in the PG and in 1 of the 35 individuals in the HCG. A significant difference was found between the two groups (p<0.05). Twenty-two individuals in the PG and 13 in the HCG showed seropositivity for past C. pneumoniae infection, and no difference was observed between the groups (p>0.05). C. pneumoniae DNA was not detected in any group. A significant difference in NT-3 levels was observed between the groups, with very low levels in the PG (p<0.001). A significant difference in BDNF levels was also found, with lower levels in the PG (p<0.05). The mean serum NT-3 level was higher in the PG cases with C. pneumoniae seropositivity than in seronegative cases; however, this difference was not statistically significant (p>0.05). In conclusion, we suggest that NT-3 levels during persistent C. pneumoniae infection may play a role in this relationship.
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Affiliation(s)
- Fatma Kalayci
- Istanbul University, Cerrahpasa Medical Faculty, Department of Medical Microbiology, Istanbul, Turkey
| | - Armagan Ozdemir
- T.C. Health Ministry Bakirkoy Mental Health and Neurology Training and Research Hospital Psychiatry Clinic, Istanbul, Turkey
| | - Suat Saribas
- Istanbul University, Cerrahpasa Medical Faculty, Department of Medical Microbiology, Istanbul, Turkey
| | - Pelin Yuksel
- Istanbul University, Cerrahpasa Medical Faculty, Department of Medical Microbiology, Istanbul, Turkey
| | - Sevgi Ergin
- Istanbul University, Cerrahpasa Medical Faculty, Department of Medical Microbiology, Istanbul, Turkey
| | - Ali Mert Kuskucu
- Istanbul University, Cerrahpasa Medical Faculty, Department of Medical Microbiology, Istanbul, Turkey
| | - Cana Aksoy Poyraz
- Istanbul University, Cerrahpasa Medical Faculty, Department of Psychiatry, Istanbul, Turkey
| | - Ibrahim Balcioglu
- Istanbul University, Cerrahpasa Medical Faculty, Department of Psychiatry, Istanbul, Turkey
| | - Nihat Alpay
- T.C. Health Ministry Bakirkoy Mental Health and Neurology Training and Research Hospital Psychiatry Clinic, Istanbul, Turkey
| | - Aykut Kurt
- Istanbul University, Cerrahpasa Medical Faculty, Department of Medical Microbiology, Istanbul, Turkey
| | - Zeynep Sezgin
- Istanbul University, Cerrahpasa Medical Faculty, Department of Medical Biochemistry, Istanbul, Turkey
| | - Banu Tufan Kocak
- T.C. Health Ministry Erenkoy Mental Health and Neurology Training and Research Hospital, Istanbul, Turkey
| | - Rana Sucu Icel
- T.C. Health Ministry, Sisli Etfal Education and Research Hospital, Department of Blood Center, Istanbul, Turkey
| | - Gunay Can
- Istanbul University, Cerrahpasa Medical Faculty, Department of Public Health, Istanbul, Turkey
| | - Hrisi Bahar Tokman
- Istanbul University, Cerrahpasa Medical Faculty, Department of Medical Microbiology, Istanbul, Turkey
| | - Bekir Kocazeybek
- Istanbul University, Cerrahpasa Medical Faculty, Department of Medical Microbiology, Istanbul, Turkey.
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Darabi S, Tiraihi T, Delshad A, Sadeghizadeh M, Khalil W, Taheri T. In vitro non-viral murine pro-neurotrophin 3 gene transfer into rat bone marrow stromal cells. J Neurol Sci 2017; 375:137-145. [PMID: 28320116 DOI: 10.1016/j.jns.2017.01.058] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2016] [Revised: 01/16/2017] [Accepted: 01/19/2017] [Indexed: 12/12/2022]
Abstract
Neurotrophin 3 (NT-3) is an important factor for promoting prenatal neural development, as well as regeneration, axogenesis and plasticity in postnatal life. Therapy with NT-3 was reported to improve the condition of patients suffering from degenerative diseases and traumatic injuries, however, the disadvantage of NT-3 protein delivery is its short half-life, thus our alternative approach is the use of NT-3 gene therapy. In this study, the bone marrow stromal cells (BMSCs) were isolated from adult rats, cultured for 4 passages and transfected with either pEGFP-N1 or a constructed vector containing murine proNT-3 (pSecTag2/HygroB-murine proNT-3) using Lipofectamine 2000 followed by Hygromycin B (200mg/kg). The transfection efficiency of the transiently transfected BMSCs was evaluated using the green fluorescence protein containing vector (pEGFP-N1). A quantitative evaluation of the NT-3 expression of mRNA using real time qRT-PCR shows that there was double fold increase in NT-3 gene expression compared with non-transfected BMSCs, also, the culture supernatant yielded double fold increase in NT-3 using ELISA technique, the data were supported by immunoblotting technique. This suggests that the use of this transfection technique can be useful for gene therapy in different neurological disorders with neurodegenerative or traumatic origins.
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Affiliation(s)
- Shahram Darabi
- Cellular and Molecular Research Center, Qazvin University of Medical Science, Qazvin, Iran
| | - Taki Tiraihi
- Department of Anatomical Sciences, School of Medical Sciences, Tarbiat Modares University, Tehran, Iran.
| | | | - Majid Sadeghizadeh
- Department of Genetics, Faculty of Basic Sciences, Tarbiat Modares University, Tehran, Iran
| | - Wisam Khalil
- Department of Anatomical Sciences, School of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Taher Taheri
- Shefa Neurosciences Research Center, Khatam Al-Anbia Hospital, Tehran, Iran
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Edalat H, Hajebrahimi Z, Pirhajati V, Tavallaei M, Movahedin M, Mowla SJ. Exogenous Expression of Nt-3 and TrkC Genes in Bone Marrow Stromal Cells Elevated the Survival Rate of the Cells in the Course of Neural Differentiation. Cell Mol Neurobiol 2016; 37:1187-1194. [PMID: 27891557 DOI: 10.1007/s10571-016-0448-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2016] [Accepted: 05/04/2016] [Indexed: 10/20/2022]
Abstract
Bone marrow stromal cells (BMSCs) are attractive cellular sources for cell therapy of many diseases, specifically neurodegenerative ones. The potential capability of BMSCs could be further augmented by enhancing their neuroprotective property, differentiation potential, and survival rate subsequent to transplantation. Therefore, a concurrent upregulation of neurotrophin-3 (NT-3) and its high affinity receptor, tyrosin kinase C (TrkC), was utilized in our study. BMSCs were cotransfected with pDsRed1-N1-NT-3 and pCMX-TrkC plasmids before induction of neural differentiation. pEGFP-N1-transfected BMSCs were also employed as a control. Real-time quantitative reverse transcription polymerase chain reaction (qRT-PCR) was employed for gene expression analysis. Cell viability was evaluated by MTT assay, while apoptosis rate was assessed by flow cytometry after PI and Annexin V staining. NT-3 and TrkC mRNA levels were greatly elevated following cotransfection of cells with pDsRed1-N1-NT-3 and pCMX-TrkC vectors. The expression of neural markers (i.e., NFM, and NeuroD1) was augmented in cotransfected BMSCs, compared to the control ones, after neural induction. At each time point, the viability and apoptosis rates of the cells over-expressing NT-3 and TrkC showed increased and reduced patterns, respectively. Our data demonstrated that NT-3/TrkC-co-transfected BMSCs, compared to those of intact cells, could be more beneficial graft candidates for the upcoming treatment strategies of neurogenic disorders due to their increased viability and expression of neural markers. This may be due to their increased level of neural differentiation potential and/or their enhanced rate of survival and/or their useful capacity to secrete NT-3.
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Affiliation(s)
- Houri Edalat
- Genetic Research Center, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Zahra Hajebrahimi
- Department of Physiology, Aerospace Research Institute, Tehran, Iran
| | - Vahid Pirhajati
- Department of Anatomy, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Mahmoud Tavallaei
- Genetic Research Center, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Mansoureh Movahedin
- Department of Anatomy, School of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Seyed Javad Mowla
- Department of Molecular Genetics, School of Biological Sciences, Tarbiat Modares University, Tehran, Iran.
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Tseng PT, Chen YW, Tu KY, Wang HY, Chung W, Wu CK, Hsu SP, Kuo HC, Lin PY. State-dependent increase in the levels of neurotrophin-3 and neurotrophin-4/5 in patients with bipolar disorder: A meta-analysis. J Psychiatr Res 2016; 79:86-92. [PMID: 27214525 DOI: 10.1016/j.jpsychires.2016.05.009] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/24/2016] [Revised: 05/08/2016] [Accepted: 05/10/2016] [Indexed: 12/29/2022]
Abstract
Bipolar disorder (BD) is one of the most serious psychiatric disorders in the world, but its pathophysiology is still unclear. Regulation of neurotrophic factors have been thought to play a role in this process. There have been inconsistent findings regarding the differences in blood neurotrophin-3 (NT-3) and neurotrophin-4/5 (NT-4/5) between patients with BD and healthy controls (HCs). The aim of the current meta-analysis is to examine the changes in the levels of NT-3 and NT-4/5 in BD patients at different affective states. Eight articles (including 465 BD patients and 353 HCs) were included in the analysis, and their results were pooled by using a random effects model. We found the levels of both NT-3 (p = 0.0046) and NT-4/5 (p = 0.0003) were significantly increased in BD patients, compared to HCs. Through subgroup analysis, this increase persisted only in patients in depressed state (p = 0.0038 for NT-3 and p = 0.0001 for NT-4/5), but not in manic or euthymic state. In addition, we found the differences in NT-3 and NT-4/5 were significantly associated with the duration of illness, but not by the mean age or female proportion. Our results suggest a state-dependent increase in NT-3 and NT-4/5 levels in patients with BD. Further studies are needed to examine dynamic changes of these neurotrophins in BD patients along the disease course.
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Abstract
AIM Brain-derived neurotrophic factor (BDNF) and neurotrophin-3 (NT-3) are neurotrophins-proteins that induce the survival, development, and function of neurons. Their role in the development of schizophrenia and mood disorders is widely studied. This study was aimed to determine whether depression affects levels of BDNF and NT-3 in patients with schizophrenia. METHODS Data for 53 Caucasian adult hospitalized patients with chronic paranoid schizophrenia was compared with 27 healthy subjects. Clinical symptoms were assessed using the Positive and Negative Syndrome Scale (PANSS) and positive, negative and general sub-scores, the Calgary Depression Scale for Schizophrenia (CDSS), the Hamilton Depression Rating Scale (HDRS), and the Clinical Global Impressions scale (CGI). Patients were defined as depressed (SHZ-DEP) with scores CDSS > 6 and HDRS > 7, otherwise they were included into the non-depressed group (SHZ-nonDEP). RESULTS In total, 17 patients (32.1%) with schizophrenia met criteria for depression. SHZ-DEP patients had higher scores in HDRS, CDSS, PANSS total, PANSS negative, PANSS general and CGI (p < 0.001 for all comparisons). There were no differences in BDNF or NT-3 levels between patients with schizophrenia and controls. BDNF levels were lower in SHZ-DEP compared to SHZ-nonDEP: 18.82 ± 5.95 versus 22.10 ± 5.31 ng/mL, p = 0.045. NT-3 levels were higher in SHZ-DEP compared to SHZ-nonDEP: 133.31 ± 222.19 versus 56.04 ± 201.28 pg/mL, p = 0.033. CONCLUSION There were no differences in neurotrophin levels between patients with schizophrenia and controls. We found lower BDNF and higher NT-3 serum levels in depressed patients with schizophrenia.
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Affiliation(s)
- Adam Wysokiński
- a Department of Old Age Psychiatry and Psychotic Disorders , Medical University of Lodz , Lodz , Poland
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50
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Renno WM, Khan KM, Benov L. Is there a role for neurotrophic factors and their receptors in augmenting the neuroprotective effect of (-)-epigallocatechin-3-gallate treatment of sciatic nerve crush injury? Neuropharmacology 2015; 102:1-20. [PMID: 26514400 DOI: 10.1016/j.neuropharm.2015.10.029] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2015] [Revised: 10/01/2015] [Accepted: 10/23/2015] [Indexed: 12/17/2022]
Abstract
This study analyzed and compared the effects of EGCG treatment on the expression of NTFs and NTF receptors expression in the sciatic nerve and the L3-L6 spinal cord segments at the early phase of regeneration following sciatic nerve crush injury. Analysis of BDNF, GDNF and NT3 neurotropic factors and Trk-B, Trk-C and NGFR-p75 receptors in neurons in the spinal cord of CRUSH and CRUSH + EGGC rats showed significant (p < 0.0001) decrease compared to NAÏVE and SHAM at day 1, 3, 7 and 14 after nerve injury. EGCG treatment significantly (p < 0.0001) increased the BDNF, GDN, NT3, Trk-B, Trk-C and NGFR-p75 immunostaining in the L3-L6 spinal cord compared to CRUSH animals. Also, EGCG treatment significantly increased the Trk-B protein concentration and Trk-B, NT3 and Trk-C gene expression in the spinal cords compared to CRUSH group. However, at day 1 and 3 post nerve injury, EGCG treatment significantly decreased the NGFR-p75 expression compared to CRUSH rats. In the sciatic nerve, EGCG treatment significantly (p < 0.01) increased the Trk-B and NGFR-p75 protein concentration in the controls. EGCG treatment significantly (p < 0.0001) increased the Trk-B, Trk-C and NGFR-p75 mRNA gene expressions in the sciatic nerves compared to CRUSH group. Only at day 1, CRUSH + EGCG animals displayed significant rise in the sciatic nerves NT3 gene expression compared to CRUSH group. Our data suggest that the EGCG neuroprotective effect on the spinal cord neurons may be mediated through the modulation of NTFs and NTF receptors following nerve crush injury in a rat model.
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Affiliation(s)
- Waleed M Renno
- Department of Anatomy, Faculty of Medicine, Kuwait University, Kuwait.
| | - Khalid M Khan
- Department of Anatomy, Faculty of Medicine, Kuwait University, Kuwait
| | - Ludmil Benov
- Department of Biochemistry, Faculty of Medicine, Kuwait University, Kuwait
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