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Liu YX, Lei J, You HJ. [Neurotrophin-associated mechanisms of delayed-onset muscle soreness: research progress and perspective]. Sheng Li Xue Bao 2024; 76:301-308. [PMID: 38658378] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/26/2024]
Abstract
Delayed-onset muscle soreness (DOMS) is a common phenomenon that occurs following a sudden increase in exercise intensity or unfamiliar exercise, significantly affecting athletic performance and efficacy in athletes and fitness individuals. DOMS is characterized by allodynia and hyperalgesia, and their mechanisms remain unclear. Recent studies have reported that neurotrophic factors, such as nerve growth factor (NGF) and glial cell derived neurotrophic factor (GDNF), are involved in the development and maintenance of DOMS. This article provides a review of the research progress on the signaling pathways related to the involvement of NGF and GDNF in DOMS, hoping to provide novel insights into the mechanisms underlying allodynia and hyperalgesia in DOMS, as well as potential targeted treatment.
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Affiliation(s)
- Yun-Xiao Liu
- Center for Translational Medicine Research on Sensory-Motor Diseases, Yan'an University, Yan'an 716000, China
| | - Jing Lei
- Center for Translational Medicine Research on Sensory-Motor Diseases, Yan'an University, Yan'an 716000, China
- Key Laboratory of Yan'an Sports Rehabilitation Medicine, Yan'an 716000, China.
| | - Hao-Jun You
- Center for Translational Medicine Research on Sensory-Motor Diseases, Yan'an University, Yan'an 716000, China
- Key Laboratory of Yan'an Sports Rehabilitation Medicine, Yan'an 716000, China.
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2
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Convertino D, Fabbri F, Mishra N, Mainardi M, Cappello V, Testa G, Capsoni S, Albertazzi L, Luin S, Marchetti L, Coletti C. Graphene Promotes Axon Elongation through Local Stall of Nerve Growth Factor Signaling Endosomes. Nano Lett 2020; 20:3633-3641. [PMID: 32208704 DOI: 10.1021/acs.nanolett.0c00571] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Several works reported increased differentiation of neuronal cells grown on graphene; however, the molecular mechanism driving axon elongation on this material has remained elusive. Here, we study the axonal transport of nerve growth factor (NGF), the neurotrophin supporting development of peripheral neurons, as a key player in the time course of axonal elongation of dorsal root ganglion neurons on graphene. We find that graphene drastically reduces the number of retrogradely transported NGF vesicles in favor of a stalled population in the first 2 days of culture, in which the boost of axon elongation is observed. This correlates with a mutual charge redistribution, observed via Raman spectroscopy and electrophysiological recordings. Furthermore, ultrastructural analysis indicates a reduced microtubule distance and an elongated axonal topology. Thus, both electrophysiological and structural effects can account for graphene action on neuron development. Unraveling the molecular players underneath this interplay may open new avenues for axon regeneration applications.
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Affiliation(s)
- Domenica Convertino
- NEST, Scuola Normale Superiore, 56127 Pisa, Italy
- Center for Nanotechnology Innovation @NEST, Istituto Italiano di Tecnologia, 56127 Pisa, Italy
| | - Filippo Fabbri
- Center for Nanotechnology Innovation @NEST, Istituto Italiano di Tecnologia, 56127 Pisa, Italy
| | - Neeraj Mishra
- Center for Nanotechnology Innovation @NEST, Istituto Italiano di Tecnologia, 56127 Pisa, Italy
| | - Marco Mainardi
- BIO@SNS Laboratory, Scuola Normale Superiore, 56126 Pisa, Italy
| | - Valentina Cappello
- Center for Nanotechnology Innovation @NEST, Istituto Italiano di Tecnologia, 56127 Pisa, Italy
| | - Giovanna Testa
- BIO@SNS Laboratory, Scuola Normale Superiore, 56126 Pisa, Italy
| | - Simona Capsoni
- BIO@SNS Laboratory, Scuola Normale Superiore, 56126 Pisa, Italy
- Section of Physiology, Department of Biomedical and Specialty Surgical Sciences, University of Ferrara, via Borsari 46, 44121 Ferrara, Italy
| | - Lorenzo Albertazzi
- Nanoscopy for Nanomedicine Group, Institute for Bioengineering of Catalonia (IBEC), The Barcelona Institute of Science and Technology (BIST), Carrer Baldiri Reixac 15-21, 08024 Barcelona, Spain
- Department of Biomedical Engineering, Institute for Complex Molecular Systems (ICMS), Eindhoven University of Technology, 5612AZ Eindhoven, The Netherlands
| | - Stefano Luin
- NEST, Scuola Normale Superiore, 56127 Pisa, Italy
- NEST Istituto Nanoscienze, CNR and Scuola Normale Superiore, 56126 Pisa, Italy
| | - Laura Marchetti
- Center for Nanotechnology Innovation @NEST, Istituto Italiano di Tecnologia, 56127 Pisa, Italy
- Department of Pharmacy, University of Pisa, 56127 Pisa, Italy
| | - Camilla Coletti
- Center for Nanotechnology Innovation @NEST, Istituto Italiano di Tecnologia, 56127 Pisa, Italy
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Choi JG, Khan Z, Hong SM, Kim YC, Oh MS, Kim SY. The Mixture of Gotu Kola, Cnidium Fruit, and Goji Berry Enhances Memory Functions by Inducing Nerve-Growth-Factor-Mediated Actions Both In Vitro and In Vivo. Nutrients 2020; 12:nu12051372. [PMID: 32403381 PMCID: PMC7285178 DOI: 10.3390/nu12051372] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Revised: 05/04/2020] [Accepted: 05/09/2020] [Indexed: 12/02/2022] Open
Abstract
Nerve growth factor (NGF), a typical neurotrophin, has been characterized by the regulation of neuronal cell differentiation and survival involved in learning and memory functions. NGF has a main role in neurite extension and synapse formation by activating the cyclic adenosine monophosphate-response-element-binding protein (CREB) in the hippocampus. The purpose of this study was to determine whether a mixture of Gotu Kola, Cnidium fruit, and Goji berry (KYJ) enhances memory function by inducing NGF-mediated actions both in vitro and in vivo. The KYJ combination increased NGF concentration and neurite length in C6 glioma and N2a neuronal cells, respectively. Additionally, we discovered memory-enhancing effects of KYJ through increased NGF-mediated synapse maturation, CREB phosphorylation, and cell differentiation in the mouse hippocampus. These findings suggest that this combination may be a potential nootropic cognitive enhancer via the induction of NGF and NGF-dependent activities.
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Affiliation(s)
- Jin Gyu Choi
- Department of Oriental Pharmaceutical Science and Kyung Hee East-West Pharmaceutical Research Institute, College of Pharmacy, Kyung Hee University, 26, Kyungheedae-ro, Dongdaemun-gu, Seoul 02447, Korea;
| | - Zahra Khan
- College of Pharmacy and Gachon Institute of Pharmaceutical Science, Gachon University, 191, Hambakmoe-ro, Yeonsu-gu, Incheon 21936, Korea; (Z.K.); (S.M.H.)
| | - Seong Min Hong
- College of Pharmacy and Gachon Institute of Pharmaceutical Science, Gachon University, 191, Hambakmoe-ro, Yeonsu-gu, Incheon 21936, Korea; (Z.K.); (S.M.H.)
| | - Young Choong Kim
- College of Pharmacy and Research Institute of Pharmaceutical Science, Seoul National University, Seoul 08826, Korea;
| | - Myung Sook Oh
- Department of Oriental Pharmaceutical Science and Kyung Hee East-West Pharmaceutical Research Institute, College of Pharmacy, Kyung Hee University, 26, Kyungheedae-ro, Dongdaemun-gu, Seoul 02447, Korea;
- Department of Life and Nanopharmaceutical Sciences, Graduate School, Kyung Hee University, 26, Kyungheedae-ro, Dongdaemun-gu, Seoul 02447, Korea
- Correspondence: (M.S.O.); (S.Y.K.); Tel.: +82-2-961-2252 (M.S.O.); +82-32-820-4931 (S.Y.K.)
| | - Sun Yeou Kim
- College of Pharmacy and Gachon Institute of Pharmaceutical Science, Gachon University, 191, Hambakmoe-ro, Yeonsu-gu, Incheon 21936, Korea; (Z.K.); (S.M.H.)
- Correspondence: (M.S.O.); (S.Y.K.); Tel.: +82-2-961-2252 (M.S.O.); +82-32-820-4931 (S.Y.K.)
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Zhang Y, Williams PR, Jacobi A, Wang C, Goel A, Hirano AA, Brecha NC, Kerschensteiner D, He Z. Elevating Growth Factor Responsiveness and Axon Regeneration by Modulating Presynaptic Inputs. Neuron 2019; 103:39-51.e5. [PMID: 31122676 DOI: 10.1016/j.neuron.2019.04.033] [Citation(s) in RCA: 55] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2018] [Revised: 03/01/2019] [Accepted: 04/23/2019] [Indexed: 12/24/2022]
Abstract
Despite robust effects on immature neurons, growth factors minimally promote axon regeneration in the adult central nervous system (CNS). Attempting to improve growth-factor responsiveness in mature neurons by dedifferentiation, we overexpressed Lin28 in the retina. Lin28-treated retinas responded to insulin-like growth factor-1 (IGF1) by initiating retinal ganglion cell (RGC) axon regeneration after axotomy. Surprisingly, this effect was cell non-autonomous. Lin28 expression was required only in amacrine cells, inhibitory neurons that innervate RGCs. Ultimately, we found that optic-nerve crush pathologically upregulated activity in amacrine cells, which reduced RGC electrical activity and suppressed growth-factor signaling. Silencing amacrine cells or pharmacologically blocking inhibitory neurotransmission also induced IGF1 competence. Remarkably, RGCs regenerating across these manipulations localized IGF1 receptor to their primary cilia, which maintained their signaling competence and regenerative ability. Thus, our results reveal a circuit-based mechanism that regulates CNS axon regeneration and implicate primary cilia as a regenerative signaling hub.
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Affiliation(s)
- Yiling Zhang
- F.M. Kirby Neurobiology Center, Children's Hospital, and Department of Neurology, Harvard Medical School, Boston, MA, USA
| | - Philip R Williams
- F.M. Kirby Neurobiology Center, Children's Hospital, and Department of Neurology, Harvard Medical School, Boston, MA, USA; Department of Ophthalmology and Visual Sciences, Washington University School of Medicine, St. Louis, MO, USA.
| | - Anne Jacobi
- F.M. Kirby Neurobiology Center, Children's Hospital, and Department of Neurology, Harvard Medical School, Boston, MA, USA
| | - Chen Wang
- F.M. Kirby Neurobiology Center, Children's Hospital, and Department of Neurology, Harvard Medical School, Boston, MA, USA
| | - Anurag Goel
- Department of Ophthalmology and Visual Sciences, Washington University School of Medicine, St. Louis, MO, USA
| | - Arlene A Hirano
- Department of Neurobiology, David Geffen School of Medicine at UCLA, Los Angeles, CA 90095, USA; United States Veterans Administration Greater Los Angeles Healthcare System, Los Angeles, CA, USA
| | - Nicholas C Brecha
- Department of Neurobiology, David Geffen School of Medicine at UCLA, Los Angeles, CA 90095, USA; United States Veterans Administration Greater Los Angeles Healthcare System, Los Angeles, CA, USA
| | - Daniel Kerschensteiner
- Department of Ophthalmology and Visual Sciences, Washington University School of Medicine, St. Louis, MO, USA
| | - Zhigang He
- F.M. Kirby Neurobiology Center, Children's Hospital, and Department of Neurology, Harvard Medical School, Boston, MA, USA
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Klusch A, Gorzelanny C, Reeh PW, Schmelz M, Petersen M, Sauer SK. Local NGF and GDNF levels modulate morphology and function of porcine DRG neurites, In Vitro. PLoS One 2018; 13:e0203215. [PMID: 30260982 PMCID: PMC6160011 DOI: 10.1371/journal.pone.0203215] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2018] [Accepted: 08/16/2018] [Indexed: 11/26/2022] Open
Abstract
Nerve terminals of primary sensory neurons are influenced by their environment through target derived trophic factors, like nerve growth factor (NGF) or glial cell line-derived neurotrophic factor (GDNF). In mice, subpopulations of DRG neurons express receptors either for NGF or GDNF and therefore differentially respond to these neurotrophic factors. We probed neurite endings from porcine DRG neurons cultured in either NGF or GDNF and examined their shape, elongation and stimulus-evoked CGRP release. A compartmentalized culture system was employed allowing spatial separation of outgrown neurites from their somata and use of different growth factors in the compartments. We show that neurites of GDNF cultured somata extend into lateral compartments without added growth factor, unlike neurites of NGF cultured ones. Neurites of NGF cultured somata extend not only into NGF- but also into GDNF-containing compartments. GDNF at the site of terminals of NGF responsive somata led to a strong neurite arborization and formation of large growth cones, compared to neurites in medium with NGF. Functionally, we could detect evoked CGRP release from as few as 7 outgrown neurites per compartment and calculated release per mm neurite length. CGRP release was detected both in neurites from NGF and GDNF cultured somata, suggesting that also the latter ones are peptidergic in pig. When neurites of NGF cultured somata were grown in GDNF, capsaicin evoked a lower CGRP release than high potassium, compared to those grown in NGF. Our experiments demonstrate that the compartmented culture chamber can be a suitable model to assess neurite properties from trophic factor specific primary sensory neurons. With this model, insights into mechanisms of gain or loss of function of specific nociceptive neurites may be achieved.
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Affiliation(s)
- Andreas Klusch
- Department of Experimental Pain Research, Medical Faculty Mannheim, University of Heidelberg, Mannheim, Germany
| | - Christian Gorzelanny
- Department of Dermatology and Venereology, University Hospital Hamburg-Eppendorf, Hamburg, Germany
| | - Peter W. Reeh
- Institute of Physiology and Pathophysiology, Friedrich-Alexander University Erlangen-Nürnberg, Erlangen, Germany
| | - Martin Schmelz
- Department of Experimental Pain Research, Medical Faculty Mannheim, University of Heidelberg, Mannheim, Germany
| | - Marlen Petersen
- Department of Experimental Pain Research, Medical Faculty Mannheim, University of Heidelberg, Mannheim, Germany
| | - Susanne K. Sauer
- Institute of Physiology and Pathophysiology, Friedrich-Alexander University Erlangen-Nürnberg, Erlangen, Germany
- * E-mail:
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Bicknell BA, Pujic Z, Feldner J, Vetter I, Goodhill GJ. Chemotactic responses of growing neurites to precisely controlled gradients of nerve growth factor. Sci Data 2018; 5:180183. [PMID: 30179228 PMCID: PMC6122170 DOI: 10.1038/sdata.2018.183] [Citation(s) in RCA: 6] [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: 05/15/2018] [Accepted: 07/17/2018] [Indexed: 12/21/2022] Open
Abstract
Chemotaxis plays a key role in many biological systems. In particular in the context of the developing nervous system, growing neurites can respond in vitro to shallow gradients of chemotropic molecules such as nerve growth factor (NGF). However, in such studies the gradient parameters are often not well controlled. Here we present a dataset of ~3500 images of early postnatal rat dorsal root ganglion (DRG) explants growing in 40 different precisely controlled combinations of absolute concentration and gradient steepness of NGF. Each image has been segmented into neurite and explant-body regions. We provide computer code for exploration and quantification of the data, including a Fourier analysis of the outer contour of neurite growth, which allows quantities such as outgrowth and guidance as a function of concentration and gradient steepness to be easily extracted. This is the most comprehensive quantitative dataset of chemotactic responses yet available for any biological system, which we hope will be useful for exploring the biological mechanisms governing chemotaxis.
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Affiliation(s)
- Brendan A. Bicknell
- Queensland Brain Institute, The University of Queensland, St Lucia, QLD 4072, Australia
- School of Mathematics and Physics, The University of Queensland, St Lucia, QLD 4072, Australia
| | - Zac Pujic
- Queensland Brain Institute, The University of Queensland, St Lucia, QLD 4072, Australia
| | - Julia Feldner
- Queensland Brain Institute, The University of Queensland, St Lucia, QLD 4072, Australia
| | - Irina Vetter
- Queensland Brain Institute, The University of Queensland, St Lucia, QLD 4072, Australia
| | - Geoffrey J. Goodhill
- Queensland Brain Institute, The University of Queensland, St Lucia, QLD 4072, Australia
- School of Mathematics and Physics, The University of Queensland, St Lucia, QLD 4072, Australia
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Nakagawa T, Hiraga SI, Mizumura K, Hori K, Ozaki N, Koeda T. Topical thermal therapy with hot packs suppresses physical inactivity-induced mechanical hyperalgesia and up-regulation of NGF. J Physiol Sci 2018; 68:629-637. [PMID: 29027134 PMCID: PMC10717048 DOI: 10.1007/s12576-017-0574-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [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: 06/19/2017] [Accepted: 10/02/2017] [Indexed: 10/18/2022]
Abstract
We focused on the analgesic effect of hot packs for mechanical hyperalgesia in physically inactive rats. Male Wistar rats were randomly divided into four groups: control, physical inactivity (PI), PI + sham treatment (PI + sham), and PI + hot pack treatment (PI + hot pack) groups. Physical inactivity rats wore casts on both hind limbs in full plantar flexed position for 4 weeks. Hot pack treatment was performed for 20 min a day, 5 days a week. Although mechanical hyperalgesia and the up-regulation of NGF in the plantar skin and gastrocnemius muscle were observed in the PI and the PI + sham groups, these changes were significantly suppressed in the PI + hot pack group. The present results clearly demonstrated that hot pack treatment was effective in reducing physical inactivity-induced mechanical hyperalgesia and up-regulation of NGF in plantar skin and gastrocnemius muscle.
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Affiliation(s)
- Tatsuki Nakagawa
- Department of Functional Anatomy, Graduate School of Medical Science, Kanazawa University, 13-1 Takara-machi, Kanazawa, Ishikawa, 920-8640, Japan
- Faculty of Rehabilitation Sciences, Department of Physical Therapy, Nagoya Gakuin University, 1350 Kamishinano-cho, Seto, 480-1298, Japan
| | - Shin-Ichiro Hiraga
- Department of Functional Anatomy, Graduate School of Medical Science, Kanazawa University, 13-1 Takara-machi, Kanazawa, Ishikawa, 920-8640, Japan
- Faculty of Rehabilitation Sciences, Department of Physical Therapy, Nagoya Gakuin University, 1350 Kamishinano-cho, Seto, 480-1298, Japan
| | - Kazue Mizumura
- Department of Physical Therapy, College of Life and Health Sciences, Chubu University, 1200 Matsumoto-cho, Kasugai, Japan
| | - Kiyomi Hori
- Department of Functional Anatomy, Graduate School of Medical Science, Kanazawa University, 13-1 Takara-machi, Kanazawa, Ishikawa, 920-8640, Japan
| | - Noriyuki Ozaki
- Department of Functional Anatomy, Graduate School of Medical Science, Kanazawa University, 13-1 Takara-machi, Kanazawa, Ishikawa, 920-8640, Japan
| | - Tomoko Koeda
- Faculty of Rehabilitation Sciences, Department of Physical Therapy, Nagoya Gakuin University, 1350 Kamishinano-cho, Seto, 480-1298, Japan.
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Chu CS, Chu CL, Wu CC, Lu T. Serum nerve growth factor beta, brain- and glial-derived neurotrophic factor levels and psychopathology in unmedicated patients with schizophrenia. J Chin Med Assoc 2018; 81:577-581. [PMID: 29366645 DOI: 10.1016/j.jcma.2017.11.010] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [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: 09/12/2017] [Revised: 11/09/2017] [Accepted: 11/10/2017] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND There is accumulating evidence that neurotrophic factors may be involved in the pathophysiology of patients with schizophrenia. This study aimed to explore the relationship between serum nerve growth factor beta (NGF-beta), brain-derived neurotrophic factor (BDNF), and glial-derived neurotrophic factor (GDNF) levels and psychopathology in unmedicated patients with schizophrenia. METHODS Serum NGF-beta, BDNF, and GDNF levels were determined using enzyme-linked-immunosorbent assay (ELISA) in the serum of 30 unmedicated patients with schizophrenia. Symptomatology was assessed with the expanded version of the 24-items brief psychiatric rating scale (BPRS-E), which was divided into four conceptual domains: manic excitement/disorganization, depression/anxiety, negative symptoms, and positive symptoms. Kolmogorov-Smirnov one sample test was performed to test non-parametric variables. Spearman's correlation was performed to examine the correlations between the cytokines of interest and psychopathology. Benjamini-Hochberg procedure was applied for multiple corrections. RESULTS Serum GDNF levels correlated negatively with the BPRS-total (r = -0.533, corrected p = 0.002) and BPRS-manic (r = -0.456, corrected p = 0.011) subtests. BDNF levels showed a positive correlation with BPRS-total (r = 0.480, corrected p = 0.007). In addition, NGF-beta did not associate with psychopathology measured by BPRS scores. CONCLUSION Neurotrophic factors play a vital role in the regulation of neuroplasticity and neurogenesis in humans. This study suggests that BDNF and GDNF may be contributing to the pathological mechanisms involved in unmedicated patients with schizophrenia.
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Affiliation(s)
- Che-Sheng Chu
- Department of Psychiatry, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan, ROC; Center for Geriatric and Gerontology, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan, ROC
| | | | - Chih-Ching Wu
- Department of Medical Biotechnology and Laboratory Science, College of Medicine, Chang Gung University, Taoyuan, Taiwan, ROC; Department of Otolaryngology-Head & Neck Surgery, Chang Gung Memorial Hospital, Linkou, Taoyuan, Taiwan, ROC
| | - Ti Lu
- Department of Psychiatry, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan, ROC.
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Wong H, Cairns BE. Nerve Growth Factor Increases Glutamate in Sensory Fibres Innervating the Masseter Muscles of Female Rats. Chin J Dent Res 2018; 21:119-125. [PMID: 29808175 DOI: 10.3290/j.cjdr.a40438] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
OBJECTIVE To investigate whether nerve growth factor (NGF) alters glutamate expression in sensory fibres and glutamate concentration in the masseter muscle of female rats. METHODS Ten female rats were injected with NGF (25 µg/ml, 10 μl) and vehicle into the right and left masseter muscles, respectively. Immunohistochemistry and microdialysis were performed after 3 days to evaluate glutamate expression and concentration in the muscle. RESULTS The frequency of expression of glutamate in the nerve fibres innervating the masseter muscle was significantly greater 3 days after NGF (56 ± 5%) than after vehicle (39 ± 5%) injection. The majority of fibres co-expressed the neuropeptide substance P (SP); a marker for sensory afferent fibres. There was no effect of NGF on the expression of the excitatory amino acid transporter type 2 (EAAT2). In the microdialysis experiment, mean interstitial glutamate concentration on the vehicle side (21.6 ± 9.8 µM) was not significantly different from that on the NGF side (16.2 ± 9.2 µM). CONCLUSION These results suggest that, in part, NGF increases the mechanical sensitivity of the masseter muscle by increasing glutamate expression in the sensory nerve endings in the muscle. This effect was local to the site of the NGF injection, as it was only detectable through immunohistochemistry, but not by microdialysis.
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Rocco ML, Soligo M, Manni L, Aloe L. Nerve Growth Factor: Early Studies and Recent Clinical Trials. Curr Neuropharmacol 2018; 16:1455-1465. [PMID: 29651949 PMCID: PMC6295934 DOI: 10.2174/1570159x16666180412092859] [Citation(s) in RCA: 110] [Impact Index Per Article: 18.3] [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: 11/29/2017] [Revised: 03/23/2018] [Accepted: 04/04/2018] [Indexed: 12/02/2022] Open
Abstract
Since its discovery, nerve growth factor (NGF) has long occupied a critical role in developmental and adult neurobiology for its many important regulatory functions on the survival, growth and differentiation of nerve cells in the peripheral and central nervous system. NGF is the first discovered member of a family of neurotrophic factors, collectively indicated as neurotrophins, (which include brain-derived neurotrophic factor, neurotrophin-3 and neurotrophin 4/5). NGF was discovered for its action on the survival and differentiation of selected populations of peripheral neurons. Since then, an enormous number of basic and human studies were undertaken to explore the role of purified NGF to prevent the death of NGF-receptive cells. These studies revealed that NGF possesses important therapeutic properties, after topical administration, on human cutaneous pressure ulcer, corneal ulcers, glaucoma, retinal maculopathy, Retinitis Pigmentosa and in pediatric optic gliomas and brain traumas. The aim of this review is to present our previous, recent and ongoing clinical studies on the therapeutic properties of NGF.
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Affiliation(s)
| | | | | | - Luigi Aloe
- Address correspondence to this author at the Fondazione IRET ONLUS, Via Tolara di Sopra 41/E, 40064 Ozzano Emilia (BO), Italy; Tel: +39-051-798776; Fax: +39-051-799673; E-mail:
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Abstract
Type 2 diabetes mellitus is an epidemic worldwide and a proved risk factor for cardiovascular complications. In 89% of the cases, it deals, in fact, with metabolic syndrome of multifactorial etiopathogenesis. This paradigm has been generalized by the neurotrophic theory emphasizing the role of hyponeurotrophinemia of key factor. Both type 2 diabetes mellitus and metabolic syndrome are characterized by insulin resistance and pancreatic β-cell damage. Cyclic keeping the fast enhances plasma neurotrophin levels. Fasting induces prenatal-development gene expression in adult pancreas and promotes neurogenin (Ngn)-3 gene expression to generate insulin producing β-cells. Probably, the increased plasma and tissue levels of the nerve growth factor and brain-derived neurotrophic factor after fasting reprogramme Ngn-3 gene expression as this genotrophic action enhances Ngn-3 protein synthesis. This results in regeneration of damaged pancreatic β-cells and restores insulin secretion in type 1 and type 2 diabetes mellitus.
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Abstract
Gene therapy is a potentially promising new treatment for neurodegenerative disorders such as Alzheimer's disease (AD), which has been difficult to treat with conventional therapeutics. Viral vector-mediated somatic gene therapy is a rapidly developing methodology for providing never before achieved capability to deliver specific genes to the CNS in a highly localized and controlled manner. With the advent and refinements of this technology one focus is directed to which genes are the most appropriate to select for specific disease indications. Nerve growth factor (NGF), a potent survival factor for critical cell populations that degenerate in AD, has been chosen already for clinical gene therapy trials in human AD patients. Much knowledge about the pathophysiological underpinnings of AD is still lacking to make clear which patients may benefit from a gene therapy approach. Moreover, a detailed understanding of sustained NGF action in the normal and diseased CNS needs to be resolved before conclusions can be drawn regarding the utility of NGF gene therapy. Systematic efforts to acquire this new knowledge should compel clinically and biologically sophisticated efforts to advance gene therapy for neurodegenerative diseases.
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Affiliation(s)
- Carolyn M Tyler
- Center for Aging and Developmental Biology, Aab Institute of Biomedical Sciences, Department of Neurology, University of Rochester School of Medicine and Dentistry, Rochester NY 14642, USA
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Bradshaw RA, Mobley W, Rush RA. Nerve Growth Factor and Related Substances: A Brief History and an Introduction to the International NGF Meeting Series. Int J Mol Sci 2017; 18:ijms18061143. [PMID: 28587118 PMCID: PMC5485967 DOI: 10.3390/ijms18061143] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2017] [Revised: 05/10/2017] [Accepted: 05/10/2017] [Indexed: 01/22/2023] Open
Abstract
Nerve growth factor (NGF) is a protein whose importance to research and its elucidation of fundamental mechanisms in cell and neurobiology far outstrips its basic physiological roles. It was the first of a broad class of cell regulators, largely acting through autocrine and paracrine interactions which will be described herein. It was of similar significance in establishing the identity and unique roles of neurotrophic factors in the development and maintenance of the peripheral and central nervous systems. Finally, it contributed to many advances in the elaboration of cell surface receptor mechanisms and intracellular cell signaling. As such, it can be considered to be a “molecular Rosetta Stone”. In this brief review, the highlights of these various studies are summarized, particularly as illustrated by their coverage in the 13 NGF international meetings that have been held since 1986.
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Affiliation(s)
- Ralph A Bradshaw
- Department of Physiology and Biophysics, University of California, Irvine, CA 92697, USA.
- Department of Pharmacology, University of California, San Diego, La Jolla, CA 92093, USA.
| | - William Mobley
- Department of Neuroscience, University of California, San Diego, La Jolla, CA 92093, USA.
| | - Robert A Rush
- Department of Human Physiology, Flinders University, Adelaide, SA 5001, Australia.
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Abstract
Nerve dependence has long been described in animal regeneration, where the outgrowth of axons is necessary to the reconstitution of lost body parts and tissue remodeling in various species. Recent discoveries have demonstrated that denervation can suppress tumor growth and metastasis, pointing to nerve dependence in cancer. Regeneration and cancer share similarities in regard to the stimulatory role of nerves, and there are indications that the stem cell compartment is a preferred target of innervation. Thus, the neurobiology of cancer is an emerging discipline that opens new perspectives in oncology.
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Affiliation(s)
- Benoni Boilly
- UFR de Biologie, Université de Lille, 59655 Villeneuve d'Ascq, France
| | - Sam Faulkner
- School of Biomedical Sciences and Pharmacy, Hunter Medical Research Institute, University of Newcastle, Callaghan, NSW 2308, Australia
| | - Phillip Jobling
- School of Biomedical Sciences and Pharmacy, Hunter Medical Research Institute, University of Newcastle, Callaghan, NSW 2308, Australia
| | - Hubert Hondermarck
- School of Biomedical Sciences and Pharmacy, Hunter Medical Research Institute, University of Newcastle, Callaghan, NSW 2308, Australia.
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15
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Hayakawa Y, Sakitani K, Konishi M, Asfaha S, Niikura R, Tomita H, Renz BW, Tailor Y, Macchini M, Middelhoff M, Jiang Z, Tanaka T, Dubeykovskaya ZA, Kim W, Chen X, Urbanska AM, Nagar K, Westphalen CB, Quante M, Lin CS, Gershon MD, Hara A, Zhao CM, Chen D, Worthley DL, Koike K, Wang TC. Nerve Growth Factor Promotes Gastric Tumorigenesis through Aberrant Cholinergic Signaling. Cancer Cell 2017; 31:21-34. [PMID: 27989802 PMCID: PMC5225031 DOI: 10.1016/j.ccell.2016.11.005] [Citation(s) in RCA: 296] [Impact Index Per Article: 42.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/18/2016] [Revised: 09/17/2016] [Accepted: 11/10/2016] [Indexed: 02/07/2023]
Abstract
Within the gastrointestinal stem cell niche, nerves help to regulate both normal and neoplastic stem cell dynamics. Here, we reveal the mechanisms underlying the cancer-nerve partnership. We find that Dclk1+ tuft cells and nerves are the main sources of acetylcholine (ACh) within the gastric mucosa. Cholinergic stimulation of the gastric epithelium induced nerve growth factor (NGF) expression, and in turn NGF overexpression within gastric epithelium expanded enteric nerves and promoted carcinogenesis. Ablation of Dclk1+ cells or blockade of NGF/Trk signaling inhibited epithelial proliferation and tumorigenesis in an ACh muscarinic receptor-3 (M3R)-dependent manner, in part through suppression of yes-associated protein (YAP) function. This feedforward ACh-NGF axis activates the gastric cancer niche and offers a compelling target for tumor treatment and prevention.
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Affiliation(s)
- Yoku Hayakawa
- Division of Digestive and Liver Diseases, Department of Medicine, Columbia University, New York, NY, 10032, USA
- Department of Gastroenterology, Graduate school of Medicine, the University of Tokyo, Tokyo, 1138655, Japan
| | - Kosuke Sakitani
- Division of Digestive and Liver Diseases, Department of Medicine, Columbia University, New York, NY, 10032, USA
| | - Mitsuru Konishi
- Department of Gastroenterology, Graduate school of Medicine, the University of Tokyo, Tokyo, 1138655, Japan
| | - Samuel Asfaha
- Division of Digestive and Liver Diseases, Department of Medicine, Columbia University, New York, NY, 10032, USA
- Department of Medicine, University of Western Ontario, London, ON N6A 5W9, Canada
| | - Ryota Niikura
- Department of Gastroenterology, Graduate school of Medicine, the University of Tokyo, Tokyo, 1138655, Japan
| | - Hiroyuki Tomita
- Department of Tumor Pathology, Gifu University Graduate School of Medicine, Gifu, 5011194, Japan
| | - Bernhard W. Renz
- Division of Digestive and Liver Diseases, Department of Medicine, Columbia University, New York, NY, 10032, USA
- Department of General, Visceral, Transplantation, Vascular and Thoracic Surgery, Hospital of the University of Munich, Munich, 81377, Germany
| | - Yagnesh Tailor
- Division of Digestive and Liver Diseases, Department of Medicine, Columbia University, New York, NY, 10032, USA
| | - Marina Macchini
- Division of Digestive and Liver Diseases, Department of Medicine, Columbia University, New York, NY, 10032, USA
| | - Moritz Middelhoff
- Division of Digestive and Liver Diseases, Department of Medicine, Columbia University, New York, NY, 10032, USA
| | - Zhengyu Jiang
- Division of Digestive and Liver Diseases, Department of Medicine, Columbia University, New York, NY, 10032, USA
| | - Takayuki Tanaka
- Division of Digestive and Liver Diseases, Department of Medicine, Columbia University, New York, NY, 10032, USA
| | - Zinaida A. Dubeykovskaya
- Division of Digestive and Liver Diseases, Department of Medicine, Columbia University, New York, NY, 10032, USA
| | - Woosook Kim
- Division of Digestive and Liver Diseases, Department of Medicine, Columbia University, New York, NY, 10032, USA
| | - Xiaowei Chen
- Division of Digestive and Liver Diseases, Department of Medicine, Columbia University, New York, NY, 10032, USA
| | - Aleksandra M. Urbanska
- Division of Digestive and Liver Diseases, Department of Medicine, Columbia University, New York, NY, 10032, USA
| | - Karan Nagar
- Division of Digestive and Liver Diseases, Department of Medicine, Columbia University, New York, NY, 10032, USA
| | - Christoph B. Westphalen
- Division of Digestive and Liver Diseases, Department of Medicine, Columbia University, New York, NY, 10032, USA
- Department of Internal Medicine III, Klinikum der Universität München, Munich, 81377, Germany
| | - Michael Quante
- Department of Internal Medicine II, Klinikum rechts der Isar, II. Technische Universität München, Munich, 81675, Germany
| | - Chyuan-Sheng Lin
- Department of Pathology and Cell Biology, Columbia University, New York, NY, 10032, USA
- Transgenic Mouse Shared Resource, Columbia University, New York, NY, 10032, USA
| | - Michael D. Gershon
- Department of Pathology and Cell Biology, Columbia University, New York, NY, 10032, USA
| | - Akira Hara
- Department of Tumor Pathology, Gifu University Graduate School of Medicine, Gifu, 5011194, Japan
| | - Chun-Mei Zhao
- Department of Cancer Research and Molecular Medicine, NTNU - Norwegian University of Science and Technology, Trondheim, 7491, Norway
| | - Duan Chen
- Department of Cancer Research and Molecular Medicine, NTNU - Norwegian University of Science and Technology, Trondheim, 7491, Norway
| | - Daniel L. Worthley
- Division of Digestive and Liver Diseases, Department of Medicine, Columbia University, New York, NY, 10032, USA
- Cancer theme, SAHMRI and Department of Medicine, University of Adelaide, SA, 5000, Australia
| | - Kazuhiko Koike
- Department of Gastroenterology, Graduate school of Medicine, the University of Tokyo, Tokyo, 1138655, Japan
| | - Timothy C. Wang
- Division of Digestive and Liver Diseases, Department of Medicine, Columbia University, New York, NY, 10032, USA
- Corresponding Author: Timothy C. Wang, M.D., Chief, Division of Digestive and Liver Diseases, Silberberg Professor of Medicine, Department of Medicine and Irving Cancer Research Center, Columbia University Medical Center, 1130 St. Nicholas Avenue, Room #925, New York, NY 10032-3802, Tel: 212-851-4581, Fax: 212-851-4590,
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16
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Phan CW, Sabaratnam V, Bovicelli P, Righi G, Saso L. Negletein as a neuroprotectant enhances the action of nerve growth factor and induces neurite outgrowth in PC12 cells. Biofactors 2016; 42:591-599. [PMID: 27193378 DOI: 10.1002/biof.1296] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [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: 12/04/2015] [Accepted: 04/18/2016] [Indexed: 01/02/2023]
Abstract
Negletein has been shown to have therapeutic potential for inflammation-associated diseases, but its effect on neurite outgrowth is still unknown. The present study showed that negletein alone did not trigger PC12 cells to differentiate and extend neurites. When compared with the cells in the untreated control, a significant (P < 0.05) induction and a higher neurite outgrowth activity was observed when the cells were cotreated with negletein (10 µM) and a low dose of nerve growth factor (NGF; 5 ng/mL). The neurite outgrowth process was blocked by the tyrosine kinase receptor (Trk) inhibitor, K252a, suggesting that the neuritogenic effect was NGF-dependent. Negletein (10 µM) together with NGF (5 ng/mL) enhanced the phosphorylation of extracellular signal-regulated kinases (ERKs), protein kinase B (Akt), and cAMP response element-binding protein (CREB). The growth associated protein-43 (GAP-43) and the NGF level were also upregulated by negletein (10 µM) and a low dose of NGF (5 ng/mL). Negletein at nanomolar concentration also was found to be sufficient to mediate the survival of serum-deprived PC12 cells up to 72 h. Taken together, negletein might be useful as an efficient bioactive compound to protect neurons from cell death and promote neuritogenesis. © 2016 BioFactors, 42(6):591-599, 2016.
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Affiliation(s)
- Chia-Wei Phan
- Mushroom Research Centre, Institute of Biological Sciences, Faculty of Science, University of Malaya, Kuala Lumpur, 50603, Malaysia
- Centre of Excellence for Learning and Teaching (CELT), UCSI University, No. 1, Jalan Menara Gading, UCSI Heights, Cheras, Kuala Lumpur, 56000, Malaysia
| | - Vikineswary Sabaratnam
- Mushroom Research Centre, Institute of Biological Sciences, Faculty of Science, University of Malaya, Kuala Lumpur, 50603, Malaysia
- Institute of Biological Sciences, Faculty of Science, University of Malaya, Kuala Lumpur, 50603, Malaysia
| | - Paolo Bovicelli
- C.N.R. IBPM, Department of Chemistry, Sapienza University of Rome, Rome, Italy
| | - Giuliana Righi
- C.N.R. IBPM, Department of Chemistry, Sapienza University of Rome, Rome, Italy
| | - Luciano Saso
- Department of Physiology and Pharmacology "Vittorio Erspamer", Sapienza University of Rome, Rome, Italy
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17
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Zhu L, Xu ZL, Cheng YY. [Research advances in association between pediatric obesity and bronchial asthma]. Zhongguo Dang Dai Er Ke Za Zhi 2016; 18:671-6. [PMID: 27412555 PMCID: PMC7388998] [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] [Subscribe] [Scholar Register] [Received: 03/21/2016] [Accepted: 05/09/2016] [Indexed: 03/30/2024]
Abstract
This review article introduces the research advances in the pathophysiological mechanism of obesity in inducing pediatric bronchial asthma, including the role of leptin in obesity and asthma, the association of plasminogen activator inhibitor-1 with obesity and asthma, the association of adiponectin and interleukins with obesity and asthma, and the influence of neurotransmitter on asthma. In particular, this article introduces the latest research on the inhibition of allergic asthma through targeting at the nociceptor of dorsal root ganglion and blocking the signaling pathway of the nociceptor.
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Affiliation(s)
- Lian Zhu
- Department of Pediatrics, Renmin Hospital of Wuhan University, Wuhan 430060, China.
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18
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Zhu L, Xu ZL, Cheng YY. [Research advances in association between pediatric obesity and bronchial asthma]. Zhongguo Dang Dai Er Ke Za Zhi 2016; 18:671-676. [PMID: 27412555 PMCID: PMC7388998 DOI: 10.7499/j.issn.1008-8830.2016.07.020] [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] [Subscribe] [Scholar Register] [Received: 03/21/2016] [Accepted: 05/09/2016] [Indexed: 06/06/2023]
Abstract
This review article introduces the research advances in the pathophysiological mechanism of obesity in inducing pediatric bronchial asthma, including the role of leptin in obesity and asthma, the association of plasminogen activator inhibitor-1 with obesity and asthma, the association of adiponectin and interleukins with obesity and asthma, and the influence of neurotransmitter on asthma. In particular, this article introduces the latest research on the inhibition of allergic asthma through targeting at the nociceptor of dorsal root ganglion and blocking the signaling pathway of the nociceptor.
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Affiliation(s)
- Lian Zhu
- Department of Pediatrics, Renmin Hospital of Wuhan University, Wuhan 430060, China.
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19
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Cillo JE, Basi D, Peacock Z, Aghaloo T, Bouloux G, Dodson T, Edwards SP, Kademani D. Proceedings of the American Association of Oral and Maxillofacial Surgeons 2015 Research Summit. J Oral Maxillofac Surg 2015; 74:429-37. [PMID: 26707430 DOI: 10.1016/j.joms.2015.11.029] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2015] [Revised: 11/18/2015] [Accepted: 11/18/2015] [Indexed: 11/15/2022]
Abstract
The Fifth Biennial Research Summit of the American Association of Oral and Maxillofacial Surgeons and its Committee on Research Planning and Technology Assessment was held in Rosemont, Illinois on May 6 and 7, 2015. The goal of the symposium is to provide a forum for the most recent clinical and scientific advances to be brought to the specialty. The proceedings of the events of that summit are presented in this report.
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Affiliation(s)
- Joseph E Cillo
- Assistant Professor and Program Director, Division of Oral and Maxillofacial Surgery, Allegheny General Hospital, Pittsburgh, PA.
| | | | - Zachary Peacock
- Assistant Professor, Department of Oral and Maxillofacial Surgery, Massachusetts General Hospital, Boston, MA
| | - Tara Aghaloo
- Assistant Dean, Clinical Research; Professor, Section of Oral and Maxillofacial Surgery, Division of Diagnostic and Surgical Sciences, UCLA School of Dentistry, Los Angeles, CA
| | - Gary Bouloux
- Assistant Professor, Department of Oral and Maxillofacial Surgery, Emory University, Atlanta, GA
| | - Thomas Dodson
- Professor and Chair, Department of Oral and Maxillofacial Surgery, University of Washington, Seattle, WA
| | - Sean P Edwards
- Clinical Associate Professor; Director, Residency Program; Chief, Pediatric Oral and Maxillofacial Surgery, University of Michigan School of Dentistry, Ann Arbor, MI
| | - Deepak Kademani
- Medical Director, Department of Oral and Maxillofacial Surgery; Fellowship Director, Oral-Head and Neck Oncologic and Reconstructive Surgery, North Memorial and Hubert Humphrey Cancer Center, Minneapolis, MN
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20
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Takemoto T, Ishihara Y, Ishida A, Yamazaki T. Neuroprotection elicited by nerve growth factor and brain-derived neurotrophic factor released from astrocytes in response to methylmercury. Environ Toxicol Pharmacol 2015; 40:199-205. [PMID: 26143513 DOI: 10.1016/j.etap.2015.06.010] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [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: 02/03/2015] [Revised: 06/05/2015] [Accepted: 06/06/2015] [Indexed: 06/04/2023]
Abstract
The protective roles of astrocytes in neurotoxicity induced by environmental chemicals, such as methylmercury (MeHg), are largely unknown. We found that conditioned medium of MeHg-treated astrocytes (MCM) attenuated neuronal cell death induced by MeHg, suggesting that astrocytes-released factors can protect neuronal cells. The increased expression of nerve growth factor (NGF) and brain-derived neurotrophic factor (BDNF) was observed in MeHg-treated astrocytes. NGF and BDNF were detected in culture media as homodimers, which are able to bind specific tyrosine kinase receptors, tropomyosin related kinase (Trk) A and TrkB, respectively. The TrkA antagonist and TrkB antagonist abolished the protective effects of MCM in neuronal cell death induced by MeHg. Taken together, astrocytes synthesize and release NGF and BDNF in response to MeHg to protect neurons from MeHg toxicity. This study is considered to show a novel defense mechanism against MeHg-induced neurotoxicity.
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Affiliation(s)
- Takuya Takemoto
- Laboratory of Molecular Brain Science, Graduate School of Integrated Arts and Sciences, Hiroshima University, Higashi-Hiroshima 739-8521, Japan
| | - Yasuhiro Ishihara
- Laboratory of Molecular Brain Science, Graduate School of Integrated Arts and Sciences, Hiroshima University, Higashi-Hiroshima 739-8521, Japan.
| | - Atsuhiko Ishida
- Laboratory of Molecular Brain Science, Graduate School of Integrated Arts and Sciences, Hiroshima University, Higashi-Hiroshima 739-8521, Japan
| | - Takeshi Yamazaki
- Laboratory of Molecular Brain Science, Graduate School of Integrated Arts and Sciences, Hiroshima University, Higashi-Hiroshima 739-8521, Japan
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21
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Balzamino BO, Esposito G, Marino R, Keller F, Micera A. NGF Expression in Reelin-Deprived Retinal Cells: A Potential Neuroprotective Effect. Neuromolecular Med 2015; 17:314-25. [PMID: 26066836 DOI: 10.1007/s12017-015-8360-z] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2015] [Accepted: 05/30/2015] [Indexed: 11/25/2022]
Abstract
We recently reported that increased NGF and p75(NTR) as well as decreased trkA(NGFR) characterized the Reelin-deprived (E-Reeler) retina, prospecting a potential contribution of NGF during E-Reeler retinogenesis. Herein, retinal ganglion cells (RGCs), glial cells and rod bipolar cells (RBCs) were isolated from E-Reeler retinas, and NGF, trkA(NGFR)/p75(NTR) expression and apoptosis were investigated. E-Reeler (n = 28) and E-control (n = 34) retinas were digested, and RGCs, glial cells and RBCs were isolated by the magnetic bead separation. Expression of NGF, trkA(NGFR), p75(NTR), Annexin V/PI and Bcl2/Bax was quantified by flow cytometry and validated by real-time PCR or WB. In E-Reeler retinas, NGF was significantly increased in RGCs and glial cells, p75(NTR) was increased in both RBCs and RGCs, and trkA(NGFR) was unchanged. In E-control retinas, NGF and p75(NTR) were expressed mainly in RBCs and RGCs and faintly in glial cells, while trkA(NGFR) was weakly expressed by RBCs and RGCs. In RBCs and RGCs, Annexin V expression was unchanged, while Bcl2 increased and Bax decreased selectively in E-Reeler RGCs. The data indicate that E-Reeler RBCs and RGCs overexpress NGF and p75(NTR) as a protective endogenous response to Reelin deprivation. The observation is strongly supported by the absence of apoptosis in both cell types.
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Affiliation(s)
- Bijorn Omar Balzamino
- Laboratory of Ophthalmology, Ocular Surface Unit, IRCCS-G.B. Bietti Foundation, via Alvaro del Portillo 21, 00128, Rome, Italy
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22
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Abstract
Afferent and efferent cardiac neurotransmission via the cardiac nerves intricately modulates nearly all physiological functions of the heart (chronotropy, dromotropy, lusitropy, and inotropy). Afferent information from the heart is transmitted to higher levels of the nervous system for processing (intrinsic cardiac nervous system, extracardiac-intrathoracic ganglia, spinal cord, brain stem, and higher centers), which ultimately results in efferent cardiomotor neural impulses (via the sympathetic and parasympathetic nerves). This system forms interacting feedback loops that provide physiological stability for maintaining normal rhythm and life-sustaining circulation. This system also ensures that there is fine-tuned regulation of sympathetic-parasympathetic balance in the heart under normal and stressed states in the short (beat to beat), intermediate (minutes to hours), and long term (days to years). This important neurovisceral/autonomic nervous system also plays a major role in the pathophysiology and progression of heart disease, including heart failure and arrhythmias leading to sudden cardiac death. Transdifferentiation of neurons in heart failure, functional denervation, cardiac and extracardiac neural remodeling has also been identified and characterized during the progression of disease. Recent advances in understanding the cellular and molecular processes governing innervation and the functional control of the myocardium in health and disease provide a rational mechanistic basis for the development of neuraxial therapies for preventing sudden cardiac death and other arrhythmias. Advances in cellular, molecular, and bioengineering realms have underscored the emergence of this area as an important avenue of scientific inquiry and therapeutic intervention.
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Affiliation(s)
- Keiichi Fukuda
- From the Department of Cardiology, Keio University School of Medicine, Tokyo, Japan (K.F., H.K., Y.A.); and UCLA Cardiac Arrhythmia Center, Neurocardiology Research Center of Excellence (J.L.A., K.S.).
| | - Hideaki Kanazawa
- From the Department of Cardiology, Keio University School of Medicine, Tokyo, Japan (K.F., H.K., Y.A.); and UCLA Cardiac Arrhythmia Center, Neurocardiology Research Center of Excellence (J.L.A., K.S.)
| | - Yoshiyasu Aizawa
- From the Department of Cardiology, Keio University School of Medicine, Tokyo, Japan (K.F., H.K., Y.A.); and UCLA Cardiac Arrhythmia Center, Neurocardiology Research Center of Excellence (J.L.A., K.S.)
| | - Jeffrey L Ardell
- From the Department of Cardiology, Keio University School of Medicine, Tokyo, Japan (K.F., H.K., Y.A.); and UCLA Cardiac Arrhythmia Center, Neurocardiology Research Center of Excellence (J.L.A., K.S.)
| | - Kalyanam Shivkumar
- From the Department of Cardiology, Keio University School of Medicine, Tokyo, Japan (K.F., H.K., Y.A.); and UCLA Cardiac Arrhythmia Center, Neurocardiology Research Center of Excellence (J.L.A., K.S.).
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Huang LW, Sun G, Wang DL, Kong LF. Inhibition of nerve growth factor/tyrosine kinase receptor A signaling ameliorates airway remodeling in chronic allergic airway inflammation. Eur Rev Med Pharmacol Sci 2015; 19:2261-2268. [PMID: 26166652] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
OBJECTIVE The molecular mechanism leading to airway remodeling in patients with allergic asthma is not fully understood. We determined the role of nerve growth factor/tyrosine kinase receptor A signaling in airway remodeling in chronic allergic airway inflammation, and proved that inhibited nerve growth factor (NGF) production ameliorates airway remodeling during chronic allergic airway inflammation. MATERIALS AND METHODS Six- to eight-week-old female BALB/c mice were used in this study. Mice were randomized into four groups: phosphate buffer saline (PBS) control group (n = 10); chronic asthmatic group (n = 12); anti-NGF group (n=12); and anti-TrkA group (n=12). First, to determine the impact of NGF on airway remodeling, antibody-blocking experiments were performed in a chronic allergic murine model characterized by matrix deposition in the subepithelial. Secondly, the number of eosinophils, macrophages, neutrophils and the total number of cells in bronchoalveolar lavage fluid (BALF) was counted. Thirdly, growth-associated protein 43 (GAP43) and NGF protein expression was measured by western blot. RESULTS It was shown that the number of eosinophils and the total inflammatory cells, NGF and GAP43 protein expression in BALF were markedly higher in asthma group, compared to the other groups. And given anti-NGF or anti-TrkA antibody treatment can reduced GAP43 expression and collagen deposition in the airway. CONCLUSIONS NGF triggers wound healing process and airway remodeling by inducing GAP43 production dependent on TrkA in a mouse model of chronic experimental asthma. Controlling epithelial NGF production might be an efficient therapeutic target to prevent allergic asthma.
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Affiliation(s)
- L-W Huang
- Institute of Respiratory Diseases, First Affiliated Hospital of China Medical University, Shenyang, Liaoning Province, P.R. China.
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24
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Sagar DR, Nwosu L, Walsh DA, Chapman V. Dissecting the contribution of knee joint NGF to spinal nociceptive sensitization in a model of OA pain in the rat. Osteoarthritis Cartilage 2015; 23:906-13. [PMID: 25623624 PMCID: PMC4459966 DOI: 10.1016/j.joca.2015.01.010] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/26/2014] [Revised: 12/04/2014] [Accepted: 01/19/2015] [Indexed: 02/02/2023]
Abstract
OBJECTIVE Although analgesic approaches targeting nerve growth factor (NGF) for the treatment of osteoarthritis (OA) pain remain of clinical interest, neurophysiological mechanisms by which NGF contribute to OA pain remain unclear. We investigated the impact of local elevation of knee joint NGF on knee joint, vs remote (hindpaw), evoked responses of spinal neurones in a rodent model of OA pain. DESIGN In vivo spinal electrophysiology was carried out in anaesthetised rats with established pain behaviour and joint pathology following intra-articular injection of monosodium iodoacetate (MIA), vs injection of saline. Neuronal responses to knee joint extension and flexion, mechanical punctate stimulation of the peripheral receptive fields over the knee and at a remote site (ipsilateral hind paw) were studied before, and following, intra-articular injection of NGF (10 μg/50 μl) or saline. RESULTS MIA-injected rats exhibited significant local (knee joint) and remote (lowered hindpaw withdrawal thresholds) changes in pain behaviour, and joint pathology. Intra-articular injection of NGF significantly (P < 0.05) increased knee extension-evoked firing of spinal neurones and the size of the peripheral receptive fields of spinal neurones (100% increase) over the knee joint in MIA rats, compared to controls. Intra-articular NGF injection did not significantly alter responses of spinal neurones following noxious stimulation of the ipsilateral hind paw in MIA-injected rats. CONCLUSION The facilitatory effects of intra-articular injection of NGF on spinal neurones receiving input from the knee joint provide a mechanistic basis for NGF mediated augmentation of OA knee pain, however additional mechanisms may contribute to the spread of pain to remote sites.
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Affiliation(s)
- D R Sagar
- Arthritis Research UK Pain Centre, University of Nottingham, Nottingham, UK; School of Life Sciences, University of Nottingham, Nottingham, NG7 2UH, UK
| | - L Nwosu
- Arthritis Research UK Pain Centre, University of Nottingham, Nottingham, UK; Department of Academic Rheumatology, University of Nottingham, Clinical Sciences Building, Nottingham City Hospital, NG5 1PB, UK
| | - D A Walsh
- Arthritis Research UK Pain Centre, University of Nottingham, Nottingham, UK; Department of Academic Rheumatology, University of Nottingham, Clinical Sciences Building, Nottingham City Hospital, NG5 1PB, UK
| | - V Chapman
- Arthritis Research UK Pain Centre, University of Nottingham, Nottingham, UK; School of Life Sciences, University of Nottingham, Nottingham, NG7 2UH, UK.
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Abstract
Brown fat is highly active in fuel oxidation and dissipates chemical energy through uncoupling protein (UCP)1-mediated heat production. Activation of brown fat leads to increased energy expenditure, reduced adiposity, and lower plasma glucose and lipid levels, thus contributing to better homeostasis. Uncoupled respiration and thermogenesis have been considered to be responsible for the metabolic benefits of brown adipose tissue. Recent studies have demonstrated that brown adipocytes also secrete factors that act locally and systemically to influence fuel and energy metabolism. This review discusses the evidence supporting a thermogenesis-independent role of brown fat, particularly through its release of secreted factors, and their implications in physiology and therapeutic development.
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Affiliation(s)
- Guo-Xiao Wang
- Life Sciences Institute and Department of Cell & Developmental Biology, University of Michigan, Ann Arbor, Michigan 48109, USA
| | - Xu-Yun Zhao
- Life Sciences Institute and Department of Cell & Developmental Biology, University of Michigan, Ann Arbor, Michigan 48109, USA
| | - Jiandie D Lin
- Life Sciences Institute and Department of Cell & Developmental Biology, University of Michigan, Ann Arbor, Michigan 48109, USA.
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Zheng LR, Zhang YY, Han J, Sun ZW, Zhou SX, Zhao WT, Wang LH. Nerve growth factor rescues diabetic mice heart after ischemia/reperfusion injury via up-regulation of the TRPV1 receptor. J Diabetes Complications 2015; 29:323-8. [PMID: 25650182 DOI: 10.1016/j.jdiacomp.2015.01.006] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [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: 08/01/2014] [Revised: 01/06/2015] [Accepted: 01/10/2015] [Indexed: 11/22/2022]
Abstract
AIMS Nerve growth factor (NGF), a member of the neurotrophin family, plays an essential role in diabetic neuropathy and ischemic heart disease. In the present study, we explored the potential role of NGF and the involvement of TRPV1 receptor in isolated diabetic mouse hearts following ischemia/reperfusion (I/R) injury. METHODS Adenovirus-mediated NGF gene delivery was performed on diabetic and sham hearts 8weeks after streptozotocin treatment. The sciatic nerve conduction velocity was recorded using a biological signal acquisition system. Forty-eight hours after heart surgery, mice were subjected to I/R injury using a Langendorff system. Several cardiac parameters and the expression of associated molecules were analyzed during the experiment. RESULTS The sciatic nerve conduction velocity was reduced in diabetic mice compared with that in control mice. Decreased expression of NGF, TRPV1, and the downstream neurotransmitters CGRP and SP was observed in the diabetic hearts. Adenovirus-mediated NGF overexpression reversed the reduction in TRPV1 and downstream neuropeptides, resulting in improved cardiac recovery post-I/R injury in diabetic hearts. The protective effect of NGF was abolished by CGRP8-37 (a selective CGRP antagonist), while it was preserved by low-dose capsaicin. CONCLUSIONS The NGF-induced up-regulation of TRPV1 via the increased synthesis and release of endogenous CGRP leads to improved cardiac performance in I/R-injured diabetic heart.
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Affiliation(s)
- Liang-Rong Zheng
- Department of Cardiovascular Sciences, First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310003, China
| | - Yuan-Yuan Zhang
- Department of Cardiovascular Sciences, First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310003, China
| | - Jie Han
- Department of Cardiovascular Sciences, First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310003, China
| | - Ze-Wei Sun
- Department of Cardiovascular Sciences, First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310003, China
| | - Shi-Xian Zhou
- Department of Geriatrics, First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310003, China
| | - Wen-Ting Zhao
- Department of Cardiovascular Sciences, First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310003, China
| | - Li-Hong Wang
- Department of Cardiovascular Sciences, Zhejiang Provincial People's Hospital, Hangzhou 310014, China.
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Ceriani M, Amigoni L, D'Aloia A, Berruti G, Martegani E. The deubiquitinating enzyme UBPy/USP8 interacts with TrkA and inhibits neuronal differentiation in PC12 cells. Exp Cell Res 2015; 333:49-59. [PMID: 25662281 DOI: 10.1016/j.yexcr.2015.01.019] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2014] [Revised: 01/20/2015] [Accepted: 01/28/2015] [Indexed: 11/19/2022]
Abstract
The tropomyosin-related kinase (Trk) family of receptor tyrosine kinases controls synaptic function, plasticity and sustains differentiation, morphology, and neuronal cell survival. Understanding Trk receptors down-regulation and recycling is a crucial step to point out sympathetic and sensory neuron function and survival. PC12 cells derived from pheochromocytoma of the rat adrenal medulla have been widely used as a model system for studies of neuronal differentiation as they respond to nerve growth factor (NGF) with a dramatic change in phenotype and acquire a number of properties characteristic of sympathetic neurons. In this study we demonstrated that in PC12 cells the TrkA receptor interacts with the deubiquitinating enzyme USP8/UBPy in a NGF-dependent manner and that it is deubiquitinated in vivo and in vitro by USP8. USP8 overexpression blocked NGF-induced neurites outgrowth while the overexpression of the catalytically inactive mutant USP8/UBPy(C748A) caused a marked increase of cell differentiation. Localization and biochemical experiments have point out that USP8 and TrkA partially co-localize in endosomes after NGF stimulation. Finally we have studied the role played by USP8 on TrkA turnover; using specific siRNA for USP8 we found that USP8 knockdown increases TrkA half-life, suggesting that the deubiquitinating activity of USP8 promotes TrkA degradation.
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Affiliation(s)
- Michela Ceriani
- Department of Biotechnology and Biosciences, University of Milano-Bicocca, Piazza della Scienza 2, 20126 Milan, Italy.
| | - Loredana Amigoni
- Department of Biotechnology and Biosciences, University of Milano-Bicocca, Piazza della Scienza 2, 20126 Milan, Italy.
| | - Alessia D'Aloia
- Department of Biotechnology and Biosciences, University of Milano-Bicocca, Piazza della Scienza 2, 20126 Milan, Italy.
| | - Giovanna Berruti
- Department of Biosciences, University of Milan, Via Celoria 26, 20133 Milan, Italy.
| | - Enzo Martegani
- Department of Biotechnology and Biosciences, University of Milano-Bicocca, Piazza della Scienza 2, 20126 Milan, Italy.
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Abstract
Nerve growth factor (NGF) was first identified as a substance that is essential for the development of nociceptive primary neurons and later found to have a role in inflammatory hyperalgesia in adults. Involvement of NGF in conditions with no apparent inflammatory signs has also been demonstrated. In this review we look at the hyperalgesic effects of exogenously injected NGF into different tissues, both human and animal, with special emphasis on the time course of these effects. The roles of NGF in inflammatory and neuropathic conditions as well as cancer pain are then reviewed. The role of NGF in delayed onset muscle soreness is described in more detail than its other roles based on the authors' recent observations. Acute effects are considered to be peripherally mediated, and accordingly, sensitization of nociceptors by NGF to heat and mechanical stimulation has been reported. Changes in the conductive properties of axons have also been reported. The intracellular mechanisms so far proposed for heat sensitization are direct phosphorylation and membrane trafficking of TRPV1 by TrkA. Little investigation has been done on the mechanism of mechanical sensitization, and it is still unclear whether mechanisms similar to those for heat sensitization work in mechanical sensitization. Long-lasting sensitizing effects are mediated both by changed expression of neuropeptides and ion channels (Na channels, ASIC, TRPV1) in primary afferents and by spinal NMDA receptors. Therapeutic perspectives are briefly discussed at the end of the chapter.
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Affiliation(s)
- Kazue Mizumura
- Department of Physical Therapy, College of Life and Health Sciences, Chubu University, 1200 Matsumoto-cho, Kasugai, 487-8501, Japan,
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Paoletti F, Malerba F, Ercole BB, Lamba D, Cattaneo A. A comparative analysis of the structural, functional and biological differences between Mouse and Human Nerve Growth Factor. Biochim Biophys Acta 2014; 1854:187-97. [PMID: 25496838 DOI: 10.1016/j.bbapap.2014.12.005] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [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: 07/12/2014] [Revised: 12/02/2014] [Accepted: 12/05/2014] [Indexed: 11/19/2022]
Abstract
NGF is the prototype member of the neurotrophin family of proteins that promote the survival and growth of selected neurons in the central and peripheral nervous systems. As for all neurotrophins, NGF is translated as a pre-pro-protein. Over the years, NGF and proNGF of either human or mouse origin, given their high degree of homology, have been exploited for numerous applications in biomedical sciences. The mouse NGF has been considered the golden-standard for bioactivity. Indeed, due to evolutionary relatedness to human NGF and to its ready availability and by assuming identical properties to its human counterpart, the mouse NGF, isolated and purified from sub-maxillary glands, has been tested not only in laboratory practice and in preclinical models, but it has also been evaluated in several human clinical trials. Aiming to validate this assumption, widely believed, we performed a comparative study of the biochemical and biophysical properties of the mouse and human counterparts of NGF and proNGF. The mature and the precursor proteins of either species strikingly differ in their biophysical profiles and, when tested for ligand binding to their receptors, in their in vitro biological activities. We provide a structural rationale that accounts for their different functional behaviors. Despite being highly conserved during evolution, NGF and proNGF of mouse and human origins show distinct properties and therefore special care must be taken in performing experiments with cross-species systems in the laboratory practice, in developing immunoassays, in clinical trials and in pharmacological treatments.
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Affiliation(s)
- Francesca Paoletti
- Neurotrophic Factors and Neurodegenerative Diseases Unit, European Brain Research Institute, "Rita Levi-Montalcini" Foundation, Via del Fosso di Fiorano 64, Rome 00143, Italy
| | - Francesca Malerba
- Neurotrophic Factors and Neurodegenerative Diseases Unit, European Brain Research Institute, "Rita Levi-Montalcini" Foundation, Via del Fosso di Fiorano 64, Rome 00143, Italy; Neurobiology Laboratory of Biology, Scuola Normale Superiore, Piazza dei Cavalieri 7, Pisa 56126, Italy
| | - Bruno Bruni Ercole
- Neurotrophic Factors and Neurodegenerative Diseases Unit, European Brain Research Institute, "Rita Levi-Montalcini" Foundation, Via del Fosso di Fiorano 64, Rome 00143, Italy
| | - Doriano Lamba
- Istituto di Cristallografia, Consiglio Nazionale delle Ricerche, Area Science Park-Basovizza, S.S. 14 Km 163.5, Trieste I-34149, Italy
| | - Antonino Cattaneo
- Neurotrophic Factors and Neurodegenerative Diseases Unit, European Brain Research Institute, "Rita Levi-Montalcini" Foundation, Via del Fosso di Fiorano 64, Rome 00143, Italy; Neurobiology Laboratory of Biology, Scuola Normale Superiore, Piazza dei Cavalieri 7, Pisa 56126, Italy.
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Abstract
Neurotrophins are a family of trophic factors well known for their effects on neuronal survival, growth and neuronal differentiation. During the last decade, a large literature has shown in humans and in animal models that nerve growth factor (NGF) is a peripheral mediator of pain, especially in the states of inflammatory pain. NGF synthesis is indeed increased in a wide variety of inflammatory diseases and NGF neutralizing molecules are effective analgesic agents in these models of persistent pain. Therapeutical strategies targeting the sequestering of NGF did yield very encouraging results in clinical trials (stages II and III) but have been on hold since 2010 due to potential harmful effects in combination with non-steroid anti-inflammatory drug. NGF regulates the expression of a second neurotrophin, Brain Derived Neurotrophic Factor (BDNF), in nociceptors. BDNF is released where nociceptors are activated, and it acts as a modulator of pain in the central nervous system and is involved in central sensitization.
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Iulita MF, Do Carmo S, Ower AK, Fortress AM, Flores Aguilar L, Hanna M, Wisniewski T, Granholm AC, Buhusi M, Busciglio J, Cuello AC. Nerve growth factor metabolic dysfunction in Down's syndrome brains. ACTA ACUST UNITED AC 2014; 137:860-72. [PMID: 24519975 DOI: 10.1093/brain/awt372] [Citation(s) in RCA: 63] [Impact Index Per Article: 6.3] [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] [Indexed: 12/30/2022]
Abstract
Basal forebrain cholinergic neurons play a key role in cognition. This neuronal system is highly dependent on NGF for its synaptic integrity and the phenotypic maintenance of its cell bodies. Basal forebrain cholinergic neurons progressively degenerate in Alzheimer's disease and Down's syndrome, and their atrophy contributes to the manifestation of dementia. Paradoxically, in Alzheimer's disease brains, the synthesis of NGF is not affected and there is abundance of the NGF precursor, proNGF. We have shown that this phenomenon is the result of a deficit in NGF's extracellular metabolism that compromises proNGF maturation and exacerbates its subsequent degradation. We hypothesized that a similar imbalance should be present in Down's syndrome. Using a combination of quantitative reverse transcription-polymerase chain reaction, enzyme-linked immunosorbent assay, western blotting and zymography, we investigated signs of NGF metabolic dysfunction in post-mortem brains from the temporal (n = 14), frontal (n = 34) and parietal (n = 20) cortex obtained from subjects with Down's syndrome and age-matched controls (age range 31-68 years). We further examined primary cultures of human foetal Down's syndrome cortex (17-21 gestational age weeks) and brains from Ts65Dn mice (12-22 months), a widely used animal model of Down's syndrome. We report a significant increase in proNGF levels in human and mouse Down's syndrome brains, with a concomitant reduction in the levels of plasminogen and tissue plasminogen activator messenger RNA as well as an increment in neuroserpin expression; enzymes that partake in proNGF maturation. Human Down's syndrome brains also exhibited elevated zymogenic activity of MMP9, the major NGF-degrading protease. Our results indicate a failure in NGF precursor maturation in Down's syndrome brains and a likely enhanced proteolytic degradation of NGF, changes which can compromise the trophic support of basal forebrain cholinergic neurons. The alterations in proNGF and MMP9 were also present in cultures of Down's syndrome foetal cortex; suggesting that this trophic compromise may be amenable to rescue, before frank dementia onset. Our study thus provides a novel paradigm for cholinergic neuroprotection in Alzheimer's disease and Down's syndrome.
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Affiliation(s)
- M Florencia Iulita
- 1 Department of Pharmacology and Therapeutics, McGill University, 3655 Sir-William-Osler Promenade, Montreal, H3G1Y6, Canada
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Abstract
Nerve growth factor (NGF) is central to the development and functional regulation of sensory neurons that signal the first events that lead to pain. These sensory neurons, called nociceptors, require NGF in the early embryo to survive and also for their functional maturation. The long road from the discovery of NGF and its roles during development to the realization that NGF plays a major role in the pathophysiology of inflammatory pain will be reviewed. In particular, we will discuss the various signaling events initiated by NGF that lead to long-lasting thermal and mechanical hyperalgesia in animals and in man. It has been realized relatively recently that humanized function blocking antibodies directed against NGF show remarkably analgesic potency in human clinical trials for painful conditions as varied as osteoarthritis, lower back pain, and interstitial cystitis. Thus, anti-NGF medication has the potential to make a major impact on day-to-day chronic pain treatment in the near future. It is therefore all the more important to understand the precise pathways and mechanisms that are controlled by NGF to both initiate and sustain mechanical and thermal hyperalgesia. Recent work suggests that NGF-dependent regulation of the mechanosensory properties of sensory neurons that signal mechanical pain may open new mechanistic avenues to refine and exploit relevant molecular targets for novel analgesics.
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Affiliation(s)
- Gary R Lewin
- Department of Neuroscience, Molecular Physiology of Somatic Sensation, Max Delbrück Center for Molecular Medicine, Robert-Rössle Str. 10, 13122, Berlin, Germany,
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Abstract
Like most growth factors, neurotrophins are initially synthesized as precursors that are cleaved to release C-terminal mature forms. The well-characterized mature neurotrophins bind to Trk receptors to initiate survival and differentiative responses. More recently, the precursor forms or proneurotrophins have been found to act as distinct ligands by binding to an unrelated receptor complex consisting of the p75 neurotrophin receptor (p75) and sortilin to initiate cell death. Induction of proNGF and p75 has been observed in preclinical injury models and in pathological states in the central nervous system, and strategies that block the proNGF/p75 interaction are effective in limiting neuronal apoptosis. In contrast, the mechanisms that regulate expression of other proneurotrophins, including proBDNF and proNT-3, are less well understood. Here, recent findings on the biological actions, regulation of expression, and pathophysiological effects of proneurotrophins will be reviewed.
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Affiliation(s)
- B L Hempstead
- Department of Medicine, Weill Cornell Medical College, Room C610, 1300 York Ave, New York, NY, 10065, USA,
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35
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Affiliation(s)
- Moses V Chao
- Skirball Institute of Biomolecular Medicine, New York University School of Medicine, New York, NY 10016, USA.
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Kajitani T, Maruyama T, Asada H, Uchida H, Oda H, Uchida S, Miyazaki K, Arase T, Ono M, Yoshimura Y. Possible involvement of nerve growth factor in dysmenorrhea and dyspareunia associated with endometriosis. Endocr J 2013; 60:1155-64. [PMID: 23883529 DOI: 10.1507/endocrj.ej13-0027] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Nerve growth factor (NGF) has been recently proposed as one of the key factors responsible not only for promotion of nerve fiber growth but also for the onset and maintenance of pain in a variety of diseases. The aim of this study was to investigate the role of NGF in the pelvic pain associated with endometriosis. Tissue and peritoneal fluid samples were collected from 95 women with laparoscopically and histopathologically confirmed endometriosis and 59 control women without endometriosis. Expression levels of NGF mRNA and protein were examined using real-time RT-PCR and immunohistochemistry, respectively. Concentration of NGF in the peritoneal fluid (PF-NGF) was measured using ELISA. The degree of dyspareunia and dysmenorrhea was evaluated using a verbal rating scale. Real-time RT-PCR analysis revealed that NGF mRNA was significantly more abundant in the ovarian endometriomas and peritoneal endometriosis than in the normal control endometrium. Immunohistochemical analyses demonstrated that NGF was prominently expressed and preferentially localized to the glands of the ovarian endometriomas and peritoneal endometriosis, whereas it was only weakly detectable in the normal endometrium. Although PF-NGF was undetectable in some normal subjects and endometriosis patients, elevated PF-NGF in the peritoneal fluid was more frequently observed in endometriosis patients with severe pain than in those with less severe pain. Our results suggest that NGF produced locally in the peritoneal cavity may be involved in the generation of endometriosis-associated pelvic pain.
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Affiliation(s)
- Takashi Kajitani
- Department of Obstetrics and Gynecology, School of Medicine, Keio University, Tokyo 160-8582, Japan
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La Rosa LR, Matrone C, Ferraina C, Panico MB, Piccirilli S, Di Certo MG, Strimpakos G, Mercuri NB, Calissano P, D'Amelio M, Nisticò R. Age-related changes of hippocampal synaptic plasticity in AβPP-null mice are restored by NGF through p75NTR. J Alzheimers Dis 2013; 33:265-72. [PMID: 22954667 DOI: 10.3233/jad-2012-112108] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Amyloid-β protein precursor (AβPP) is a ubiquitous protein found in all cell types, suggesting basic and yet important roles, which still remain to be fully elucidated. Loss of function of AβPP has been linked to abnormal neuronal morphology and synaptic function within the hippocampus and alterations in spatial learning, suggesting a neurotrophic role for this protein. Besides AβPP, nerve growth factor (NGF) and other neurotrophins have also been shown to finely modulate neuronal excitability, synaptic plasticity, and cognitive functions. In addition, recent data support the hypothesis of a functional interconnection between AβPP and NGF pathway. Here, we demonstrated that loss of AβPP function, leading to progressive decrease of choline acetyltransferase expression in the septum, correlates with age-related impairment of long-term potentiation (LTP) in the dentate gyrus. We next addressed whether impaired hippocampal plasticity in AβPP-null mice can be restored upon NGF treatment. Notably, NGF, as well as Pro-NGF, can fully revert LTP deficits in AβPP-null mice through p75NTR and JNK pathway activation. Overall the present study may unveil a new mechanism by which, in the absence of AβPP, NGF treatment may preferentially direct p75-neurotrophin-dependent JNK activation toward regeneration and plasticity in functionally relevant brain circuits.
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Affiliation(s)
- Luca Rosario La Rosa
- Institute of Cellular Biology and Neurobiology, National Council of Research of Rome, Rome, Italy
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Li HZ, Jin ZY, Yuan XZ, Jin CJ. [Levels of nerve growth factor and interleukin-4 in the induced sputum of children with cough variant asthma]. Zhongguo Dang Dai Er Ke Za Zhi 2012; 14:924-927. [PMID: 23234779] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
OBJECTIVE To examine the levels of nerve growth factor (NGF) and interleukin-4 (IL-4) in the induced sputum of children with cough variant asthma (CVA), with the aim of studying the roles of NGF and IL-4 in childhood CVA. METHODS Thirty-four children with CVA were enrolled in this study. Twenty healthy children were used as a normal control group. The induced sputum was separated into supernatant and cells. Hematoxylin and eosin staining was used to count differential cells. The expression of NGF and IL-4 in supernatant was measured using ELISA. The mRNA expression of NGF and IL-4 in cells was determined by Real-time PCR analysis. RESULTS The percentage of eosinophils in the CVA group was significantly higher than in the control group [(13.4±3.6)% vs (2.6±1.7)%; P<0.01]. The expression of NGF and IL-4 protein and mRNA in induced sputum was significantly higher in the CVA group than in the control group (P<0.05). The expression of NGF and IL-4 protein and mRNA was positively correlated with the percentage of eosinophils (P<0.01). The expression of NGF and IL-4 protein and mRNA in induced sputum was significantly reduced in the CVA group after treatment (P<0.05). CONCLUSIONS Eosinophils infiltration and increased expression of NGF and IL-4 play key roles in the development of childhood CVA, suggesting that they may be useful in the diagnosis and treatment of childhood CVA.
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Affiliation(s)
- Hong-Zi Li
- Department of Pediatrics, Affiliated Hospital of Yanbian University, Yanbian, Jilin, China.
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Abstract
BACKGROUND Nerve growth factor (NGF) is a well-known mediator for maintaining the survival of neurons, while recent studies report that its absence induces apoptosis in cultured β cells of humans and rats. However, its relationship with other growth factors that have important roles in the survival and function of β cells such as epidermal growth factor (EGF) has not yet been elucidated. The aim of this study was to investigate the effects of NGF withdrawal on the synthesis and secretion of EGF, insulin with respect to β cell apoptosis in hyperglycemic rats. METHOD β cells were isolated from euglycemic and streptozotocin-induced hyperglycemic rats and treated with NGF neutralizing antibody for withdrawal of NGF in culture medium. NGF, EGF and insulin levels in cell lysates and secretion samples were measured by enzyme-linked immunosorbent assay, and their gene expressions were determined by real-time reverse transcription polymerase chain reaction assay. Apoptosis was quantitatively determined by cytoplasmic histone-associated DNA fragments. RESULTS Nerve growth factor neutralization triggered β cell apoptosis. In addition decreased insulin, increased NGF and EGF were observed at gene expression and protein levels by NGF neutralization. Moreover, NGF withdrawal decreased secretion of these peptides from β cells. Although the alterations seemed to be similar under euglycemic and hyperglycemic conditions, NGF withdrawal more strongly affected β cells of hyperglycemic rats. CONCLUSIONS These important findings indicate that NGF is an important regulator for the synthesis and secretion of EGF and insulin from the β cells. Moreover, results suggested that NGF withdrawal causes apoptosis by decreasing EGF, NGF and insulin secretion from β cells of hyperglycemic rats.
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Tomioka S, Nagahama T, Tokuyama R, Tatehara S, Satomura K. Nerve growth factor increases electrical activity of neural cells derived from murine bone marrow stromal cells. Neuro Endocrinol Lett 2012; 33:177-182. [PMID: 22592198] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Received: 02/10/2012] [Accepted: 03/30/2012] [Indexed: 05/31/2023]
Abstract
OBJECTIVE Nerve growth factor (NGF) triggers long-term neuronal excitability. We examined its effect on murine bone marrow stromal cells (BMSC)-derived neurons. METHODS With an optimal differentiation protocol, BMSCs were differentiated into neurons in culture. To confirm the probability of differentiation of BMSC into neuron, the expression of neuronal marker protein, neurofilament, was examined by immunocytochemistry. To examine the electrophysiological properties of BMSC-derived neurons, the field potentials were recorded either from nontreated (control) BMSC-derived neurons or from BMSC-derived neurons after the treatment with NGF by using extracellular recording techniques. RESULTS Most BMSC-derived neurons showed spontaneous discharges whose amplitudes were up to 2 mV. When NGF at a concentration of 100 ng/ml was applied to BMSC-derived neurons, the amplitudes of discrete field potentials were gradually enlarged within 1 min after NGF application and peaked 3 min later (20-fold the size of control). However, the enlargement of the amplitudes of field potentials almost disappeared 5 min after NGF application. CONCLUSION This finding indicates that neuronal cells derived from murine BMSCs generate discrete field potential activities spontaneously and that NGF has the effect of enlarging transient, but not sustained, electrical activity of BMSC-derived neurons.
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Affiliation(s)
- Shigemasa Tomioka
- Department of Dental Anesthesiology, The University of Tokushima Graduate School, Kuramoto-cho, Tokushima City, Tokushima, Japan.
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Ramos OV, Torterolo P, Lim V, Chase MH, Sampogna S, Yamuy J. The role of mesopontine NGF in sleep and wakefulness. Brain Res 2011; 1413:9-23. [PMID: 21840513 PMCID: PMC3189444 DOI: 10.1016/j.brainres.2011.06.066] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [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: 03/10/2011] [Revised: 06/27/2011] [Accepted: 06/30/2011] [Indexed: 10/18/2022]
Abstract
The microinjection of nerve growth factor (NGF) into the cat pontine tegmentum rapidly induces rapid eye movement (REM) sleep. To determine if NGF is involved in naturally-occurring REM sleep, we examined whether it is present in mesopontine cholinergic structures that promote the initiation of REM sleep, and whether the blockade of NGF production in these structures suppresses REM sleep. We found that cholinergic neurons in the cat dorso-lateral mesopontine tegmentum exhibited NGF-like immunoreactivity. In addition, the microinjection of an oligodeoxyribonucleotide (OD) directed against cat NGF mRNA into this region resulted in a reduction in the time spent in REM sleep in conjunction with an increase in the time spent in wakefulness. Sleep and wakefulness returned to baseline conditions 2 to 5 days after antisense OD administration. The preceding antisense OD-induced effects occurred in conjunction with the suppression of NGF-like immunoreactivity within the site of antisense OD injection. These data support the hypothesis that NGF is involved in the modulation of naturally-occurring sleep and wakefulness.
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Affiliation(s)
| | - Pablo Torterolo
- Departamento de Fisiología, Facultad de Medicina, Universidad de la República, Montevideo, Uruguay
| | - Vincent Lim
- Websciences International, Los Angeles, CA, 90024
| | - Michael H. Chase
- Websciences International, Los Angeles, CA, 90024
- UCLA School of Medicine Los Angeles, CA, 90024
| | | | - Jack Yamuy
- VA Greater Los Angeles Healthcare System, Los Angeles, CA, 90073
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Bodmer D, Ascaño M, Kuruvilla R. Isoform-specific dephosphorylation of dynamin1 by calcineurin couples neurotrophin receptor endocytosis to axonal growth. Neuron 2011; 70:1085-99. [PMID: 21689596 DOI: 10.1016/j.neuron.2011.04.025] [Citation(s) in RCA: 63] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/07/2011] [Indexed: 01/19/2023]
Abstract
Endocytic events are critical for neuronal survival in response to target-derived neurotrophic cues, but whether local axon growth is mediated by endocytosis-dependent signaling mechanisms remains unclear. Here, we report that Nerve Growth Factor (NGF) promotes endocytosis of its TrkA receptors and axon growth by calcineurin-mediated dephosphorylation of the endocytic GTPase dynamin1. Conditional deletion of calcineurin in sympathetic neurons disrupts NGF-dependent innervation of peripheral target tissues. Calcineurin signaling is required locally in sympathetic axons to support NGF-mediated growth in a manner independent of transcription. We show that calcineurin associates with dynamin1 via a PxIxIT interaction motif found only in specific dynamin1 splice variants. PxIxIT-containing dynamin1 isoforms colocalize with surface TrkA receptors, and their phosphoregulation is selectively required for NGF-dependent TrkA internalization and axon growth in sympathetic neurons. Thus, NGF-dependent phosphoregulation of dynamin1 is a critical event coordinating neurotrophin receptor endocytosis and axonal growth.
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Affiliation(s)
- Daniel Bodmer
- Department of Biology, Johns Hopkins University, Baltimore, MD 21218, USA
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Hu J, Zhou J, Li X, Wang F, Lü H. Schwann cells promote neurite outgrowth of dorsal root ganglion neurons through secretion of nerve growth factor. Indian J Exp Biol 2011; 49:177-182. [PMID: 21452596] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
The transplantation of Schwann cells (SCs) could successfully promote axonal regeneration. This is likely to attribute to the adhesion molecules expression and growth factors secretion of SCs. But which factor(s) play a key role has not been precisely studied. In this study, an outgrowth assay using dorsal root ganglia (DRG) neuron-SC co-culture system in vitro was performed. Co-culture of SCs or application of SC-conditioned medium (CM) substantially and significantly increased DRG neurite outgrowth. Further, nerve growth factor and NGF receptor (TrkA) mRNA were highly expressed in Schwann cells and DRG neuron, respectively. The high concentration of NGF protein was detected in SC-CM. When K-252a, a specific inhibitor of NGF receptor was added, DRG neurite outgrowth was significantly decreased in a concentration-dependent manner. These data strongly suggest that SCs play important roles in neurite outgrowth of DRG neurons by secreted NGF.
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Affiliation(s)
- Jianguo Hu
- Department of Clinical Laboratory Science, The First Affiliated Hospital of Bengbu Medical College, 287 Changhuai Road Bengbu 233004, PR China.
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Luan B, Feng XX, Yang YX, Zhang ZY. [Roles of FIZZ1 and NOTCH1 in asthma]. Zhongguo Dang Dai Er Ke Za Zhi 2011; 13:219-222. [PMID: 21426641] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
OBJECTIVE To investigate the roles of FIZZ1 and NOTCH1 in the pathogenesis of asthma and the effect of rosiglitazone on airway remodeling. METHODS Forty-five healthy 6 to 8-week-old Sprague-Dawley rats were randomly divided into a control group and asthma groups with and without rosiglitazone treatment. The paraffin slices of lung tissues were made to assess the histological changes. a-SMA protein, a specific marker of airway remodeling, in lung tissues was measured by immunohistochemistry. FIZZl-mRNA and NOTCH1-mRNA expression in lung tissues was measured by RT-PCR. RESULTS The characteristic changes of airway remodeling were observed in the untreated asthma group. The histological changes in the airway were less severe in the rosiglitazone treated asthma group. Positive a-SMA staining, FIZZl-mRNA and NOTCH1-mRNA were highly expressed in peribronchial lung sections isolated from the untreated asthma group. Rosiglitazone treatment decreased significantly the expression of a-SMA protein, FIZZl-mRNA and NOTCH1-mRNA compared with the untreated asthma group, but the expression of a-SMA protein, FIZZl-mRNA and NOTCH1-mRNA in the rosiglitazone treated asthma group remained higher than the control group. a-SMA expression was positively correlated with FIZZl-mRNA (r=0.826, P<0.01) and NOTCH1-mRNA expression (r=0.9, P<0.01). FIZZl-mRNA expression was positively correlated with NOTCH1-mRNA expression (r=0.76, P<0.01). CONCLUSIONS FIZZl and NOTCH1 may induce an increase in a-SMA expression. FIZZl and NOTCH1 play a critical role in the process of airway remodeling. Rosiglitazone treatment may inhibit airway remodeling in asthmatic rats.
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Affiliation(s)
- Bin Luan
- Department of Pediatrics, Third Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China.
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Kryzhanovskiĭ SA, Vititnova MB. [Cardiovascular effects of nerve growth factor (analytical literature review) Part I. NGF-indirect intracellular signal pathways]. Fiziol Cheloveka 2011; 37:104-116. [PMID: 21542326] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Traditionally, nerve growth factor (NGF) is considered as chemoattractant that participates in the regulation of cell proliferation, differentiation and myelination of neurons. However, currently available data suggest that the physiological role of NGF in the organism is much wider. This review discusses the features of the influence of NGF on the functional activity of the cardiovascular system, as well as signaling pathways by which activated NGF TrkA and p75(ntr) receptors regulate the functional state of endothelial and vascular smooth muscle cells and cardiomyocytes. In addition, the review observes the theoretical perspectives of agonists and antagonists of TrkA and p75(ntr) receptors for the treatment of various diseases of the heart and blood vessels.
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Luo SY, Zhang JM, Li HJ, Zheng SC, Zhang YR, Zhu XH. [Effect of nerve growth factor on adhesion and motional abilities of tumor cells and their correlation]. Zhonghua Kou Qiang Yi Xue Za Zhi 2010; 45:531-534. [PMID: 21122445] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
OBJECTIVE To investigate the effect on adhesion and motion capbilities of adenoid cystic carcinoma (ACC), by detecting the expression of nerve growth factor (NGF), E-cadherin (E-cad) and S100A4 and the clinical significance in ACC tissues and analyzing the relationships between them with perineural invasion (PNI). METHODS The expression of NGF, E-cad and S100A4 in ACC was detected with the way of immunohistochemistry SP, and then analyzing the expression level of them in different pathological types and histological regions in statistical ways on the basis of their relation with clinical and pathological parameters. RESULTS The expression of NGF and S100A4 in PNI group [88% (23/26) and 77% (20/26)], was higher than that in NPNI group (8/16 and 7/16, P < 0.05), and a positive correlation between them was identified in PNI group (r = 0.316, P < 0.05). However the E-cad expression was lower in PNI group [31% (8/26), P < 0.05]. On the other hand it suggested a negative correlation with NGF (r = 0.385, P < 0.05) as well as that with S100A4 (r = -0.612, P = 0.000). The expression level of NGF in fasciculus [83% (25/30)] has significant deviation compared with it in distant tumor tissues [47% (14/30), P < 0.05]. CONCLUSIONS In the PNI process of ACC, NGF plays important parts but not the only factor. It can increase the expression and activity of S100A4 but decrease E-cad expression through binding with its receptor. Thus, adhesion abilities of tumor cells was weakened and motional abilities was strengthen.
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Affiliation(s)
- Shu-Yu Luo
- Department of Oral Pathology, Hospital of Stomatology, Tianjin Medical University, Tianjin 300070, China
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Cornejo M, Nambi D, Walheim C, Somerville M, Walker J, Kim L, Ollison L, Diamante G, Vyawahare S, de Bellard ME. Effect of NRG1, GDNF, EGF and NGF in the migration of a Schwann cell precursor line. Neurochem Res 2010; 35:1643-51. [PMID: 20623378 DOI: 10.1007/s11064-010-0225-0] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/23/2010] [Indexed: 12/13/2022]
Abstract
The Schwann cells are the myelinating glia of the peripheral nervous system that originated during development from the highly motile neural crest. However, we do not know what the guidance signals for the Schwann cell precursors are. Therefore, we set to test some of the known neurotrophins that are expressed early in developing embryos and have been shown to be critical for the survival and patterning of developing glia and neurons. The goal of this study was to determine more specifically if GDNF, NRG1 and NGF are chemoattractants and/or chemokinetic molecules for a Schwann cell precursor line, the Spl201. We performed live chemoattraction assays, with imaging and also presented these molecules as part of their growing substrate. Our results show for the first time that GDNF and NRG1 are potent chemoattractive and chemokinetic molecules for these cells while NGF is a chemokinetic molecule stimulating their motility.
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Affiliation(s)
- Martha Cornejo
- Department of Biology, California State University Northridge, Northridge, CA 91330, USA
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Emdin M, Vergaro G, Giannoni A, Passino C. [Adrenergic activation in heart failure: blockade or rebalance?]. G Ital Cardiol (Rome) 2010; 11:229-232. [PMID: 20550063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
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Lee BC, Choi IG, Kim YK, Ham BJ, Yang BH, Roh S, Choi J, Lee JS, Oh DY, Chai YG. Relation between plasma brain-derived neurotrophic factor and nerve growth factor in the male patients with alcohol dependence. Alcohol 2009; 43:265-9. [PMID: 19560628 DOI: 10.1016/j.alcohol.2009.04.003] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2008] [Revised: 04/10/2009] [Accepted: 04/16/2009] [Indexed: 11/16/2022]
Abstract
Brain-derived neurotrophic factor (BDNF) and nerve growth factor (NGF) are thought to be related to neuroprotection in cell culture and animal studies. Our aim was to verify the changes in human plasma BDNF and NGF concentrations induced by chronic alcohol use. Forty-one male patients with alcohol dependence were sampled the next morning of admission and compared with 41 healthy male subjects. Plasma BDNF and NGF were assayed using an enzyme-linked immunosorbent assay (ELISA). Mean plasma BDNF level was significantly higher in the patients with alcohol dependence (3502.21+/-1726.9 pg/mL) compared with the healthy subjects (861.75+/-478.9 pg/mL) (P=.000). Mean plasma NGF level was also significantly higher in patients with alcohol dependence (137.64+/-32.7 pg/mL) than in healthy subjects (112.61+/-90.2 pg/mL) (P=.012). Plasma BDNF and NGF levels showed significant negative correlation in alcohol dependence group (r=-0.388, P=.012). Increased plasma BDNF and NGF with negative correlation in alcohol-dependent patients may have some role in the regeneration of damage done by chronic alcohol use.
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Affiliation(s)
- Boung Chul Lee
- Department of Neuropsychiatry, Hallym University Hangang Sacred Heart Hospital, Seoul, Republic of Korea
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