51
|
Barker PA, Mantyh P, Arendt-Nielsen L, Viktrup L, Tive L. Nerve Growth Factor Signaling and Its Contribution to Pain. J Pain Res 2020; 13:1223-1241. [PMID: 32547184 PMCID: PMC7266393 DOI: 10.2147/jpr.s247472] [Citation(s) in RCA: 102] [Impact Index Per Article: 25.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Nerve growth factor (NGF) is a neurotrophic protein essential for the growth, differentiation, and survival of sympathetic and sensory afferent neurons during development. A substantial body of evidence, based on both animal and human studies, demonstrates that NGF plays a pivotal role in modulation of nociception in adulthood. This has spurred development of a variety of novel analgesics that target the NGF signaling pathway. Here, we present a narrative review designed to summarize how NGF receptor activation and downstream signaling alters nociception through direct sensitization of nociceptors at the site of injury and changes in gene expression in the dorsal root ganglion that collectively increase nociceptive signaling from the periphery to the central nervous system. This review illustrates that NGF has a well-known and multifunctional role in nociceptive processing, although the precise signaling pathways downstream of NGF receptor activation that mediate nociception are complex and not completely understood. Additionally, much of the existing knowledge derives from studies performed in animal models and may not accurately represent the human condition. However, available data establish a role for NGF in the modulation of nociception through effects on the release of inflammatory mediators, nociceptive ion channel/receptor activity, nociceptive gene expression, and local neuronal sprouting. The role of NGF in nociception and the generation and/or maintenance of chronic pain has led to it becoming a novel and attractive target of pain therapeutics for the treatment of chronic pain conditions.
Collapse
Affiliation(s)
- Philip A Barker
- Department of Biology, University of British Columbia, Kelowna, BC, Canada
| | - Patrick Mantyh
- Department of Pharmacology, University of Arizona, Tucson, AZ, USA
| | - Lars Arendt-Nielsen
- Department of Health Science and Technology and the Center for Sensory-Motor Interaction/Center for Neuroplasticity and Pain, Aalborg University, Aalborg, Denmark
| | | | | |
Collapse
|
52
|
Drissi I, Woods WA, Woods CG. Understanding the genetic basis of congenital insensitivity to pain. Br Med Bull 2020; 133:65-78. [PMID: 32219415 PMCID: PMC7227775 DOI: 10.1093/bmb/ldaa003] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/18/2019] [Revised: 01/21/2020] [Accepted: 01/31/2020] [Indexed: 12/15/2022]
Abstract
INTRODUCTION OR BACKGROUND Congenital insensitivity to pain (CIP) is caused by extremely rare Mendelian genetic disorders. CIP individuals demonstrate the unexpectedly severe consequences of painlessness. Although only a small number of causative conditions and genes are known, most have led to profound insights into human nociception. CIP gene discovery is catalyzing the manufacture of completely new classes of analgesics, and these are needed as alternatives to synthetic highly potent opioids. SOURCES OF DATA Pubmed.gov peer-reviewed journal articles and reviews. AREAS OF AGREEMENT The importance of nerve growth factor-tropomyosin receptor kinase A (NGF-TRKA) signalling for nociceptor genesis and subsequent pain sensing.New analgesics can be generated from knowledge of the NGF-TRKA nociceptor pathway.Increased susceptibility to Staphylococcus aureus infection is a consequence of deficient NGF-TRKA signalling.Mutations in the voltage-gated sodium channels SCN9A and SCN11A can cause congenital painlessness, and in contradistinction, other mutations can cause episodic neuropathic pain. SCN9A/Nav1.7 is an analgesic target. SCN11A/Nav1.9 is unlikely to be an analgesic target.There are further Mendelian causes of painlessness to be discovered. AREAS OF CONTROVERSY Which NGF-TRKA intracellular signalling pathways operate in nociceptor development and which in post-natal pain sensing?Why have no clinically effective Nav1.7 antagonist been generated? SCN9A-CIP causes analgesia, at least in part, through endogenous opioids.Why do all CIP phenotypes involve a complete loss of all types of nociception? AREAS TIMELY FOR DEVELOPING RESEARCH PRDM12 as an analgesic target.Discovery of the function and analgesic potential of new CIP genes.Can NGF-TRKA be used in the treatment of S. aureus?
Collapse
Affiliation(s)
- Ichrak Drissi
- Cambridge Institute for Medical Research, University of Cambridge, Cambridge Biomedical Campus, The Keith Peters Building, Hills Road, Cambridge CB2 0XY, UK
| | - William Aidan Woods
- School of Medicine, David Weatherall building, University Road, Keele University, Staffordshire ST5 5BG, UK
| | - Christopher Geoffrey Woods
- Cambridge Institute for Medical Research, University of Cambridge, Cambridge Biomedical Campus, The Keith Peters Building, Hills Road, Cambridge CB2 0XY, UK
| |
Collapse
|
53
|
Potilinski MC, Lorenc V, Perisset S, Gallo JE. Mechanisms behind Retinal Ganglion Cell Loss in Diabetes and Therapeutic Approach. Int J Mol Sci 2020; 21:ijms21072351. [PMID: 32231131 PMCID: PMC7177797 DOI: 10.3390/ijms21072351] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2019] [Revised: 02/20/2020] [Accepted: 02/20/2020] [Indexed: 02/07/2023] Open
Abstract
Diabetes produces several changes in the body triggered by high glycemia. Some of these changes include altered metabolism, structural changes in blood vessels and chronic inflammation. The eye and particularly the retinal ganglion cells (RGCs) are not spared, and the changes eventually lead to cell loss and visual function impairment. Understanding the mechanisms resulting in RGC damage and loss from diabetic retinopathy is essential to find an effective treatment. This review focuses mainly on the signaling pathways and molecules involved in RGC loss and the potential therapeutic approaches for the prevention of this cell death. Throughout the manuscript it became evident that multiple factors of different kind are responsible for RGC damage. This shows that new therapeutic agents targeting several factors at the same time are needed. Alpha-1 antitrypsin as an anti-inflammatory agent may become a suitable option for the treatment of RGC loss because of its beneficial interaction with several signaling pathways involved in RGC injury and inflammation. In conclusion, alpha-1 antitrypsin may become a potential therapeutic agent for the treatment of RGC loss and processes behind diabetic retinopathy.
Collapse
Affiliation(s)
- María Constanza Potilinski
- Instituto de Investigaciones en Medicina Traslacional (IIMT), Facultad de Ciencias Biomedicas, Universidad Austral-CONICET, Av. J.D. Perón 1500, 1629 Pilar, Buenos Aires, Argentina; (M.C.P.); (V.L.); (S.P.)
| | - Valeria Lorenc
- Instituto de Investigaciones en Medicina Traslacional (IIMT), Facultad de Ciencias Biomedicas, Universidad Austral-CONICET, Av. J.D. Perón 1500, 1629 Pilar, Buenos Aires, Argentina; (M.C.P.); (V.L.); (S.P.)
| | - Sofía Perisset
- Instituto de Investigaciones en Medicina Traslacional (IIMT), Facultad de Ciencias Biomedicas, Universidad Austral-CONICET, Av. J.D. Perón 1500, 1629 Pilar, Buenos Aires, Argentina; (M.C.P.); (V.L.); (S.P.)
| | - Juan Eduardo Gallo
- Instituto de Investigaciones en Medicina Traslacional (IIMT), Facultad de Ciencias Biomedicas, Universidad Austral-CONICET, Av. J.D. Perón 1500, 1629 Pilar, Buenos Aires, Argentina; (M.C.P.); (V.L.); (S.P.)
- Departamento de Oftalmologia, Hospital Universitario Austral, Av. Juan Perón 1500, 1629 Pilar, Buenos Aires, Argentina
- Correspondence: ; Tel.: +54-91164038725
| |
Collapse
|
54
|
Dileepan M, Ge XN, Bastan I, Greenberg YG, Liang Y, Sriramarao P, Rao SP. Regulation of Eosinophil Recruitment and Allergic Airway Inflammation by Tropomyosin Receptor Kinase A. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2020; 204:682-693. [PMID: 31871023 PMCID: PMC7058110 DOI: 10.4049/jimmunol.1900786] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/15/2019] [Accepted: 11/24/2019] [Indexed: 12/13/2022]
Abstract
Eosinophilia is a hallmark of allergic airway inflammation (AAI). Identifying key molecules and specific signaling pathways that regulate eosinophilic inflammation is critical for development of novel therapeutics. Tropomycin receptor kinase A (TrkA) is the high-affinity receptor for nerve growth factor. AAI is associated with increased expression of TrkA by eosinophils; however, the functional role of TrkA in regulating eosinophil recruitment and contributing to AAI is poorly understood. This study identifies, to our knowledge, a novel mechanism of eotaxin-mediated activation of TrkA and its role in regulating eosinophil recruitment by using a chemical-genetic approach to specifically inhibit TrkA kinase activity with 1-NM-PP1 in TrkAF592A-knock-in (TrkA-KI) eosinophils. Blockade of TrkA by 1-NM-PP1 enhanced eosinophil spreading on VCAM-1 but inhibited eotaxin-1 (CCL11)-mediated eosinophil migration, calcium flux, cell polarization, and ERK1/2 activation, suggesting that TrkA is an important player in the signaling pathway activated by eotaxin-1 during eosinophil migration. Further, blockade of matrix metalloprotease with BB-94 inhibited eotaxin-1-induced TrkA activation and eosinophil migration, additively with 1-NM-PP1, indicating a role for matrix metalloproteases in TrkA activation. TrkA inhibition in Alternaria alternata-challenged TrkA-KI mice markedly inhibited eosinophilia and attenuated various features of AAI. These findings are indicative of a distinctive eotaxin-mediated TrkA-dependent signaling pathway, which, in addition to other TrkA-activating mediators, contributes to eosinophil recruitment during AAI and suggests that targeting the TrkA signaling pathway to inhibit eosinophil recruitment may serve as a therapeutic strategy for management of eosinophilic inflammation in allergic airway disease, including asthma.
Collapse
Affiliation(s)
- Mythili Dileepan
- Department of Veterinary and Biomedical Sciences, University of Minnesota, St. Paul, MN
| | | | | | - Yana G. Greenberg
- Department of Veterinary and Biomedical Sciences, University of Minnesota, St. Paul, MN
| | - Yuying Liang
- Department of Veterinary and Biomedical Sciences, University of Minnesota, St. Paul, MN
| | - P. Sriramarao
- Corresponding authors: P. Srirama Rao (), University of Minnesota, 1971 Commonwealth Avenue, St. Paul, MN 55108, Phone: 612-626-6989; Yuying Liang (), University of Minnesota, 1988 Fitch Ave., 295 AS/VM Bldg, St. Paul, MN 55108, Phone: 612-625-3376
| | - Savita P. Rao
- Department of Veterinary and Biomedical Sciences, University of Minnesota, St. Paul, MN
| |
Collapse
|
55
|
Du J, Ji Y, Qiao L, Liu Y, Lin J. Cellular endo-lysosomal dysfunction in the pathogenesis of non-alcoholic fatty liver disease. Liver Int 2020; 40:271-280. [PMID: 31765080 DOI: 10.1111/liv.14311] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/19/2019] [Revised: 11/09/2019] [Accepted: 11/13/2019] [Indexed: 12/13/2022]
Abstract
Non-alcoholic fatty liver disease (NAFLD), an increasingly devastating human disorder, is characterized by intrahepatic fat accumulation. Although important progress has been made in understanding NAFLD, the fundamental mechanisms involved in the pathogenesis of NAFLD have not been fully explained. The endo-lysosomal trafficking network is central to lipid metabolism, protein degradation and signal transduction, which are involved in a variety of diseases. In recent years, many genes and pathways in the endo-lysosomal trafficking network and involved in lysosomal biogenesis have been associated with the development and progression of NAFLD. Mutations of these genes and impaired signalling lead to dysfunction in multiple steps of the endo-lysosomal network (endocytic trafficking, membrane fusion and lysosomal degradation), resulting in the accumulation of pathogenic proteins. In this review, we will focus on how alterations in these genes and pathways affect endo-lysosomal trafficking as well as the pathophysiology of NAFLD.
Collapse
Affiliation(s)
- Jiang Du
- College of Biomedical Engineering, Xinxiang Medical University, Xinxiang, China.,Stem Cell and Biotherapy Engineering Research Center of Henan, Xinxiang Medical University, Xinxiang, China
| | - Yu Ji
- College of Biomedical Engineering, Xinxiang Medical University, Xinxiang, China
| | - Liang Qiao
- Stem Cell and Biotherapy Engineering Research Center of Henan, Xinxiang Medical University, Xinxiang, China
| | - Yanli Liu
- Stem Cell and Biotherapy Engineering Research Center of Henan, Xinxiang Medical University, Xinxiang, China
| | - Juntang Lin
- Stem Cell and Biotherapy Engineering Research Center of Henan, Xinxiang Medical University, Xinxiang, China
| |
Collapse
|
56
|
Abstract
Adrenarche, the post-natal rise of DHEA and DHEAS, is unique to humans and the African Apes. Recent findings have linked DHEA in humans to the development of the left dorsolateral prefrontal cortex (LDPFC) between the ages of 4-8 years and the right temporoparietal junction (rTPJ) from 7 to 12 years of age. Given the association of the LDLPFC with the 5-to-8 transition and the rTPJ with mentalizing during middle childhood DHEA may have played an important role in the evolution of the human brain. I argue that increasing protein in the diet over the course of human evolution not only increased levels of DHEAS, but linked meat consumption with brain development during the important 5- to-8 transition. Consumption of animal protein has been associated with IGF-1, implicated in the development of the adrenal zona reticularis (ZR), the site of DHEAS production. In humans and chimps, the zona reticularis emerges at 3-4 years, along with the onset of DHEA/S production. For chimps this coincides with weaning and peak synaptogenesis. Among humans, weaning is completed around 2 ½ years, while synaptogenesis peaks around 5 years. Thus, in chimpanzees, early cortical maturation is tied to the mother; in humans it may be associated with post-weaning provisioning by others. I call for further research on adrenarche among the African apes as a critical comparison to humans. I also suggest research in subsistence populations to establish the role of nutrition and energetics in the timing of adrenarche and the onset of middle childhood.
Collapse
|
57
|
Wu P, Shi X, Luo M, Inam-U-Llah, Li K, Zhang M, Ma J, Li Y, Liu Y, Zhang C, Liu X, Li S, Li Q, Chen X, Che X, Piao F. Taurine inhibits neuron apoptosis in hippocampus of diabetic rats and high glucose exposed HT-22 cells via the NGF-Akt/Bad pathway. Amino Acids 2019; 52:87-102. [PMID: 31875259 DOI: 10.1007/s00726-019-02810-6] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2019] [Accepted: 11/28/2019] [Indexed: 01/23/2023]
Abstract
Type 2 Diabetes causes learning and memory deficits that might be mediated by hippocampus neuron apoptosis. Studies found that taurine might improve cognitive deficits under diabetic condition because of its ability to prevent hippocampus neuron apoptosis. However, the effect and mechanism is not clear. In this study, we explore the effect and mechanism of taurine on inhibiting hippocampus neuron apoptosis. Sixty male Sprague-Dawley rats were randomly divided into control, T2D, taurine treatment (giving 0.5%, 1%, and 2% taurine in drinking water) groups. Streptozotocin was used to establish the diabetes model. HT-22 cell (hippocampus neurons line) was used for in vitro experiments. Morris Water Maze test was used to check the learning and memory ability, TUNEL assay was used to measure apoptosis and nerve growth factor (NGF); Akt/Bad pathway relevant protein was detected by western blot. Taurine improved learning and memory ability and significantly decreased apoptosis of the hippocampus neurons in T2D rats. Moreover, taurine supplement also inhibited high glucose-induced apoptosis in HT-22 cell in vitro. Mechanistically, taurine increased the expression of NGF, phosphorylation of Trka, Akt, and Bad, as well as reduced cytochrome c release from mitochondria to cytosol. However, beneficial effects of taurine were blocked in the presence of anti-NGF antibody or Akt inhibitor. Taurine could inhibit hippocampus neuron apoptosis via NGF-Akt/Bad pathway. These results provide some clues that taurine might be efficient and feasible candidate for improvement of learning and memory ability in T2D rats.
Collapse
Affiliation(s)
- Pingan Wu
- Department of Occupational and Environmental Health, Dalian Medical University, Dalian, China
| | - Xiaoxia Shi
- Department of Occupational and Environmental Health, Dalian Medical University, Dalian, China
| | - Mengxin Luo
- Department of Occupational and Environmental Health, Dalian Medical University, Dalian, China
| | - Inam-U-Llah
- Department of Occupational and Environmental Health, Dalian Medical University, Dalian, China
| | - Kaixin Li
- Department of Occupational and Environmental Health, Dalian Medical University, Dalian, China
| | - Mengren Zhang
- Department of Occupational and Environmental Health, Dalian Medical University, Dalian, China
| | - Jingran Ma
- Department of Occupational and Environmental Health, Dalian Medical University, Dalian, China
| | - Yuan Li
- Department of Occupational and Environmental Health, Dalian Medical University, Dalian, China
| | - Yanqing Liu
- Department of Occupational and Environmental Health, Dalian Medical University, Dalian, China
| | - Cong Zhang
- Department of Food Nutrition and Safety, Dalian Medical University, Dalian, China
| | - Xiaofang Liu
- Department of Food Nutrition and Safety, Dalian Medical University, Dalian, China
| | - Shuangyue Li
- Department of Occupational and Environmental Health, Dalian Medical University, Dalian, China
| | - Qiujuan Li
- Department of Experimental Teaching Center of Public Health, Dalian Medical University, Dalian, China
| | - Xiaochi Chen
- Department of Urology, The First Affiliated Hospital of Dalian Medical University, Dalian, 116011, Liaoning, China
| | - Xiangyu Che
- Department of Urology, The First Affiliated Hospital of Dalian Medical University, Dalian, 116011, Liaoning, China.
| | - Fengyuan Piao
- Integrative Laboratory, Affiliated Zhong Shan Hospital of Dalian University, Dalian, 116001, China.
| |
Collapse
|
58
|
Shi B, Luo J, Fang Y, Liu X, Rao Z, Liu R, Zeng N. Xiaoyao Pills Prevent Lipopolysaccharide-Induced Depression by Inhibiting Inflammation and Protecting Nerves. Front Pharmacol 2019; 10:1324. [PMID: 31798446 PMCID: PMC6863983 DOI: 10.3389/fphar.2019.01324] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2019] [Accepted: 10/15/2019] [Indexed: 12/26/2022] Open
Abstract
Lipopolysaccharides are pro-inflammation mediators that can induce inflammation in the serum, hippocampus, and cortex of animals. And lipopolysaccharide-induced neuroinflammatory state resulted in significant depression-like behaviors, including reduced locomotor activity in the open field test, reduced saccharin preference, added immobility time in tail suspension test and forced swimming test, decreased comb time in the splash test, and increased latency to food in the novelty suppressed feeding test time, and reduced the levels of neurotrophic factors and synaptic proteins, and decreased Nissl bodies. Treatment with Xiaoyao Pills ameliorated the depression-like behavior, decreased the levels of inflammatory indicators, increased those of neurotrophic factors and synaptic proteins, and restored Nissl bodies. Our study suggests that lipopolysaccharides induce inflammation and nerve injury, thereby leading to depression. Xiaoyao Pills could be considered a potential therapeutic candidate for inflammation-induced depression.
Collapse
Affiliation(s)
- Boyu Shi
- Department of Pharmacology, College of Pharmacy, Chengdu University of TCM, Chengdu, China
| | - Jie Luo
- Department of Pharmacology, College of Pharmacy, Chengdu University of TCM, Chengdu, China
| | - Yang Fang
- Department of Pharmacology, College of Pharmacy, Chengdu University of TCM, Chengdu, China
| | - Xiaobo Liu
- Department of Pharmacology, College of Pharmacy, Chengdu University of TCM, Chengdu, China
| | - Zhili Rao
- Department of Pharmacology, College of Pharmacy, Chengdu University of TCM, Chengdu, China
| | - Rong Liu
- Department of Pharmacology, College of Pharmacy, Chengdu University of TCM, Chengdu, China
| | - Nan Zeng
- Department of Pharmacology, College of Pharmacy, Chengdu University of TCM, Chengdu, China
| |
Collapse
|
59
|
Gabrych DR, Lau VZ, Niwa S, Silverman MA. Going Too Far Is the Same as Falling Short †: Kinesin-3 Family Members in Hereditary Spastic Paraplegia. Front Cell Neurosci 2019; 13:419. [PMID: 31616253 PMCID: PMC6775250 DOI: 10.3389/fncel.2019.00419] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2019] [Accepted: 09/02/2019] [Indexed: 01/18/2023] Open
Abstract
Proper intracellular trafficking is essential for neuronal development and function, and when any aspect of this process is dysregulated, the resulting "transportopathy" causes neurological disorders. Hereditary spastic paraplegias (HSPs) are a family of such diseases attributed to over 80 spastic gait genes (SPG), specifically characterized by lower extremity spasticity and weakness. Multiple genes in the trafficking pathway such as those relating to microtubule structure and function and organelle biogenesis are representative disease loci. Microtubule motor proteins, or kinesins, are also causal in HSP, specifically mutations in Kinesin-I/KIF5A (SPG10) and two kinesin-3 family members; KIF1A (SPG30) and KIF1C (SPG58). KIF1A is a motor enriched in neurons, and involved in the anterograde transport of a variety of vesicles that contribute to pre- and post-synaptic assembly, autophagic processes, and neuron survival. KIF1C is ubiquitously expressed and, in addition to anterograde cargo transport, also functions in retrograde transport between the Golgi and the endoplasmic reticulum. Only a handful of KIF1C cargos have been identified; however, many have crucial roles such as neuronal differentiation, outgrowth, plasticity and survival. HSP-related kinesin-3 mutants are characterized mainly as loss-of-function resulting in deficits in motility, regulation, and cargo binding. Gain-of-function mutants are also seen, and are characterized by increased microtubule-on rates and hypermotility. Both sets of mutations ultimately result in misdelivery of critical cargos within the neuron. This likely leads to deleterious cell biological cascades that likely underlie or contribute to HSP clinical pathology and ultimately, symptomology. Due to the paucity of histopathological or cell biological data assessing perturbations in cargo localization, it has been difficult to positively link these mutations to the outcomes seen in HSPs. Ultimately, the goal of this review is to encourage future academic and clinical efforts to focus on "transportopathies" through a cargo-centric lens.
Collapse
Affiliation(s)
- Dominik R Gabrych
- Department of Biological Sciences, Simon Fraser University, Burnaby, BC, Canada
| | - Victor Z Lau
- Department of Biological Sciences, Simon Fraser University, Burnaby, BC, Canada
| | - Shinsuke Niwa
- Frontier Research Institute for Interdisciplinary Sciences, Tohoku University, Sendai, Japan
| | - Michael A Silverman
- Department of Biological Sciences, Simon Fraser University, Burnaby, BC, Canada.,Centre for Cell Biology, Development, and Disease, Simon Fraser University, Burnaby, BC, Canada
| |
Collapse
|
60
|
Santoni G, Amantini C. The Transient Receptor Potential Vanilloid Type-2(TRPV2) Ion Channels in Neurogenesis andGliomagenesis: Cross-Talk between TranscriptionFactors and Signaling Molecules. Cancers (Basel) 2019; 11:cancers11030322. [PMID: 30845786 PMCID: PMC6468602 DOI: 10.3390/cancers11030322] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2019] [Revised: 02/27/2019] [Accepted: 03/01/2019] [Indexed: 12/20/2022] Open
Abstract
Recently, the finding of cancer stem cells in brain tumors has increased the possibilities for advancing new therapeutic approaches with the aim to overcome the limits of current available treatments. In addition, a role for ion channels, particularly of TRP channels, in developing neurons as well as in brain cancer development and progression have been demonstrated. Herein, we focus on the latest advancements in understanding the role of TRPV2, a Ca2+ permeable channel belonging to the TRPV subfamily in neurogenesis and gliomagenesis. TRPV2 has been found to be expressed in both neural progenitor cells and glioblastoma stem/progenitor-like cells (GSCs). In developing neurons, post-translational modifications of TRPV2 (e.g., phosphorylation by ERK2) are required to stimulate Ca2+ signaling and nerve growth factor-mediated neurite outgrowth. TRPV2 overexpression also promotes GSC differentiation and reduces gliomagenesis in vitro and in vivo. In glioblastoma, TRPV2 inhibits survival and proliferation, and induces Fas/CD95-dependent apoptosis. Furthermore, by proteomic analysis, the identification of a TRPV2 interactome-based signature and its relation to glioblastoma progression/recurrence, high or low overall survival and drug resistance strongly suggest an important role of the TRPV2 channel as a potential biomarker in glioblastoma prognosis and therapy.
Collapse
Affiliation(s)
- Giorgio Santoni
- School of Pharmacy, University of Camerino, 62032 Camerino, Italy.
| | - Consuelo Amantini
- School of Biosciences and Veterinary Medicine, University of Camerino, 62032 Camerino, Italy.
| |
Collapse
|
61
|
Cadet JL, Patel R, Jayanthi S. Compulsive methamphetamine taking and abstinence in the presence of adverse consequences: Epigenetic and transcriptional consequences in the rat brain. Pharmacol Biochem Behav 2019; 179:98-108. [PMID: 30797763 DOI: 10.1016/j.pbb.2019.02.009] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/20/2018] [Revised: 02/04/2019] [Accepted: 02/20/2019] [Indexed: 02/06/2023]
Abstract
Methamphetamine addiction is characterized by compulsive binges of drug intake despite adverse life consequences. A model of methamphetamine self-administration that includes contingent footshocks to constitute adverse consequences has helped to segregate rats that reduce or stop lever pressing for methamphetamine (sensitive) from those that continue to lever press for the drug (resistant) in the presence of negative outcomes. We have observed differential DNA hydroxymethylation and increased expression of potassium channel mRNAs in the nucleus accumbens of sensitive compared to resistant rats, suggesting a role of these channels in suppressing methamphetamine intake. There were also significant increases in nerve growth factor (NGF) expression and activation of its downstream signaling pathway (NGF-TrkA and p75NTR/MAPK signaling) in only the dorsal striatum of sensitive rats after a month of abstinence. In contrast, oxytocin mRNA expression was increased in only the nucleus accumbens of resistant rats compared to sensitive rats euthanized after that time. These results indicate that footshocks can differentiate two behavioral phenotypes with differential biochemical and epigenetic consequences in the ventral and dorsal striatum.
Collapse
Affiliation(s)
- Jean Lud Cadet
- Molecular Neuropsychiatry Research Branch, NIDA Intramural Research Program, Baltimore, MD, USA.
| | - Ravish Patel
- Molecular Neuropsychiatry Research Branch, NIDA Intramural Research Program, Baltimore, MD, USA
| | - Subramaniam Jayanthi
- Molecular Neuropsychiatry Research Branch, NIDA Intramural Research Program, Baltimore, MD, USA
| |
Collapse
|
62
|
Zheng MG, Sui WY, He ZD, Liu Y, Huang YL, Mu SH, Xu XZ, Zhang JS, Qu JL, Zhang J, Wang D. TrkA regulates the regenerative capacity of bone marrow stromal stem cells in nerve grafts. Neural Regen Res 2019; 14:1765-1771. [PMID: 31169194 PMCID: PMC6585565 DOI: 10.4103/1673-5374.257540] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
We previously demonstrated that overexpression of tropomyosin receptor kinase A (TrkA) promotes the survival and Schwann cell-like differentiation of bone marrow stromal stem cells in nerve grafts, thereby enhancing the regeneration and functional recovery of the peripheral nerve. In the present study, we investigated the molecular mechanisms underlying the neuroprotective effects of TrkA in bone marrow stromal stem cells seeded into nerve grafts. Bone marrow stromal stem cells from Sprague-Dawley rats were infected with recombinant lentivirus vector expressing rat TrkA, TrkA-shRNA or the respective control. The cells were then seeded into allogeneic rat acellular nerve allografts for bridging a 1-cm right sciatic nerve defect. Then, 8 weeks after surgery, hematoxylin and eosin staining showed that compared with the control groups, the cells and fibers in the TrkA overexpressing group were more densely and uniformly arranged, whereas they were relatively sparse and arranged in a disordered manner in the TrkA-shRNA group. Western blot assay showed that compared with the control groups, the TrkA overexpressing group had higher expression of the myelin marker, myelin basic protein and the axonal marker neurofilament 200. The TrkA overexpressing group also had higher levels of various signaling molecules, including TrkA, pTrkA (Tyr490), extracellular signal-regulated kinases 1/2 (Erk1/2), pErk1/2 (Thr202/Tyr204), and the anti-apoptotic proteins Bcl-2 and Bcl-xL. In contrast, these proteins were downregulated, while the pro-apoptotic factors Bax and Bad were upregulated, in the TrkA-shRNA group. The levels of the TrkA effectors Akt and pAkt (Ser473) were not different among the groups. These results suggest that TrkA enhances the survival and regenerative capacity of bone marrow stromal stem cells through upregulation of the Erk/Bcl-2 pathway. All procedures were approved by the Animal Ethical and Welfare Committee of Shenzhen University, China in December 2014 (approval No. AEWC-2014-001219).
Collapse
Affiliation(s)
- Mei-Ge Zheng
- Department of Orthopedics, The Seventh Hospital of Sun Yat-sen University, Shenzhen, Guangdong Province, China; Department of Orthopedics, The Second Hospital of Anhui Medical University, Hefei, Anhui Province, China
| | - Wen-Yuan Sui
- Department of Orthopedics, The Seventh Hospital of Sun Yat-sen University, Shenzhen, Guangdong Province, China
| | - Zhen-Dan He
- School of Medicine, Shenzhen University, Shenzhen, Guangdong Province, China
| | - Yan Liu
- Department of Scientific Research, The Seventh Hospital of Sun Yat-sen University, Shenzhen, Guangdong Province, China
| | - Yu-Lin Huang
- Department of Orthopedics, The Seventh Hospital of Sun Yat-sen University, Shenzhen, Guangdong Province, China
| | - Shu-Hua Mu
- Psychology & Social College of Shenzhen University, Shenzhen, Guangdong Province, China
| | - Xin-Zhong Xu
- Department of Orthopedics, The Second Hospital of Anhui Medical University, Hefei, Anhui Province, China
| | - Ji-Sen Zhang
- Department of Orthopedics, The Second Hospital of Anhui Medical University, Hefei, Anhui Province, China
| | - Jun-Le Qu
- Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Optoelectronic Engineering, Shenzhen University, Shenzhen, Guangdong Province, China
| | - Jian Zhang
- School of Medicine, Shenzhen University, Shenzhen, Guangdong Province, China
| | - Dong Wang
- Department of Orthopedics, The Seventh Hospital of Sun Yat-sen University, Shenzhen, Guangdong Province, China
| |
Collapse
|
63
|
Elsayed MSA, Nielsen JJ, Park S, Park J, Liu Q, Kim CH, Pommier Y, Agama K, Low PS, Cushman M. Application of Sequential Palladium Catalysis for the Discovery of Janus Kinase Inhibitors in the Benzo[ c]pyrrolo[2,3- h][1,6]naphthyridin-5-one (BPN) Series. J Med Chem 2018; 61:10440-10462. [PMID: 30460842 DOI: 10.1021/acs.jmedchem.8b00510] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The present account describes the discovery and development of a new benzo[ c]pyrrolo[2,3- h][1,6]naphthyridin-5-one (BPN) JAK inhibitory chemotype that has produced selective JAK inhibitors. Sequential palladium chemistry was optimized for the rapid access to a focused library of derivatives to explore the structure-activity relationships of the new scaffold. Several compounds from the series displayed potencies in the low nanomolar range against the four members of the JAK family with various selectivity profiles. Compound 20a, with an azetidine amide side chain, showed the best selectivity for JAK1 kinase vs JAK2, JAK3, and TYK2, with low nanomolar potency (IC50 = 3.4 nM). On the other hand, BPNs 17b and 18 had good general activity against the JAK family with excellent kinome selectivity profiles. Many of the new BPNs inhibited JAK3-mediated STAT-5 phosphorylation, the production of inflammatory cytokines, and the proliferation of primary T cells. Moreover, BPN 17b showed very similar in vivo results to tofacitinib in a rheumatoid arthritis animal model.
Collapse
Affiliation(s)
- Mohamed S A Elsayed
- Department of Medicinal Chemistry and Molecular Pharmacology, College of Pharmacy , Purdue University , West Lafayette , Indiana 47907 , United States.,The Purdue Center for Cancer Research , Purdue University , West Lafayette , Indiana 47907 , United States
| | - Jeffery J Nielsen
- Department of Medicinal Chemistry and Molecular Pharmacology, College of Pharmacy , Purdue University , West Lafayette , Indiana 47907 , United States.,The Purdue Center for Cancer Research , Purdue University , West Lafayette , Indiana 47907 , United States
| | - Sungtae Park
- Department of Comparative Pathobiology, College of Veterinary Medicine , Purdue University , West Lafayette , Indiana 47907 , United States.,The Purdue Center for Cancer Research , Purdue University , West Lafayette , Indiana 47907 , United States
| | - Jeongho Park
- Department of Comparative Pathobiology, College of Veterinary Medicine , Purdue University , West Lafayette , Indiana 47907 , United States.,The Purdue Center for Cancer Research , Purdue University , West Lafayette , Indiana 47907 , United States
| | - Qingyang Liu
- Department of Comparative Pathobiology, College of Veterinary Medicine , Purdue University , West Lafayette , Indiana 47907 , United States.,Department of Pathology and Mary H. Weiser Food Allergy Center , University of Michigan Medical School , Ann Arbor , Michigan 48109 , United States
| | - Chang H Kim
- Department of Comparative Pathobiology, College of Veterinary Medicine , Purdue University , West Lafayette , Indiana 47907 , United States.,The Purdue Center for Cancer Research , Purdue University , West Lafayette , Indiana 47907 , United States.,Department of Pathology and Mary H. Weiser Food Allergy Center , University of Michigan Medical School , Ann Arbor , Michigan 48109 , United States
| | - Yves Pommier
- Developmental Therapeutics Branch and Laboratory of Molecular Pharmacology, Center for Cancer Research , National Cancer Institute , Bethesda , Maryland 20892 , United States
| | - Keli Agama
- Developmental Therapeutics Branch and Laboratory of Molecular Pharmacology, Center for Cancer Research , National Cancer Institute , Bethesda , Maryland 20892 , United States
| | - Philip S Low
- The Purdue Center for Cancer Research , Purdue University , West Lafayette , Indiana 47907 , United States.,Department of Chemistry , Purdue University , West Lafayette , Indiana 47907 , United States
| | - Mark Cushman
- Department of Medicinal Chemistry and Molecular Pharmacology, College of Pharmacy , Purdue University , West Lafayette , Indiana 47907 , United States.,The Purdue Center for Cancer Research , Purdue University , West Lafayette , Indiana 47907 , United States
| |
Collapse
|
64
|
Li X, Li F, Ling L, Li C, Zhong Y. Intranasal administration of nerve growth factor promotes angiogenesis via activation of PI3K/Akt signaling following cerebral infarction in rats. Am J Transl Res 2018; 10:3481-3492. [PMID: 30662601 PMCID: PMC6291726] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2018] [Accepted: 10/22/2018] [Indexed: 06/09/2023]
Abstract
Angiogenesis plays a critical role in neural repair following ischemic stroke. Therapeutic angiogenesis contributes to neurological functional recovery after cerebral infarction. Nerve growth factor (NGF) has been reported as a neurotrophic factor. However, the angiogenic efficacy of NGF in cerebral ischemia remains unclear. In this study, we investigated the effect of NGF on angiogenesis in the ischemic penumbra and neurological outcome in a rat model of middle cerebral artery occlusion (MCAO). Our results demonstrate that the intranasal administration of NGF improves neurological outcome and reduces infarct volume on day 7 after MCAO in rats. Treatment with NGF promoted angiogenesis in the peri-infarct region, increased the serum levels of VEGF and SDF-1 protein, and elevated the number of circulating endothelial progenitor cells (EPCs) on day 4 after MCAO. In addition, NGF enhanced capillary-like tube formation of rat brain microvascular endothelial cells in vitro, further confirming its angiogenic effect. Furthermore, the neuroprotective and angiogenic effects of NGF can be significantly attenuated by the phosphatidylinositide 3-kinase (PI3K)/Akt pathway antagonist LY294002. Our results indicate that NGF-enhanced angiogenesis contributes to neurological functional recovery after ischemic stroke, which may occur partly via activation of the PI3K/Akt signaling pathway. This study provides novel experimental evidence for the angiogenic role of NGF in treating ischemic stroke.
Collapse
Affiliation(s)
- Xiaoqiang Li
- Department of Neurology, Affiliated Xiaolan Hospital, Southern Medical University (Xiaolan People’s Hospital)Zhongshan, Guangdong, China
| | - Fangming Li
- Department of Neurology, Shenzhen University General Hospital, Shenzhen University Clinical Medical AcademyShenzhen, Guangdong, China
| | - Li Ling
- Department of Neurology, Shenzhen Hospital, Southern Medical UniversityShenzhen, Guangdong, China
| | - Chuqiao Li
- Department of Neurology, Nanfang Hospital, Southern Medical UniversityGuangzhou, Guangdong, China
| | - Yulan Zhong
- Department of Neurology, The First Affiliated Hospital, Jinan UniversityGuangzhou, Guangdong, China
| |
Collapse
|
65
|
Netzahualcoyotzi C, Tapia R. Tetanus toxin C-fragment protects against excitotoxic spinal motoneuron degeneration in vivo. Sci Rep 2018; 8:16584. [PMID: 30410110 PMCID: PMC6224557 DOI: 10.1038/s41598-018-35027-w] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2018] [Accepted: 10/24/2018] [Indexed: 12/11/2022] Open
Abstract
The tetanus toxin C-fragment is a non-toxic peptide that can be transported from peripheral axons into spinal motoneurons. In in vitro experiments it has been shown that this peptide activates signaling pathways associated with Trk receptors, leading to cellular survival. Because motoneuron degeneration is the main pathological hallmark in motoneuron diseases, and excitotoxicity is an important mechanism of neuronal death in this type of disorders, in this work we tested whether the tetanus toxin C-fragment is able to protect MN in the spinal cord in vivo. For this purpose, we administered the peptide to rats subjected to excitotoxic motoneuron degeneration induced by the chronic infusion of AMPA in the rat lumbar spinal cord, a well-established model developed in our laboratory. Because the intraspinal infusion of the fragment was only weakly effective, whereas the i.m. administration was remarkably neuroprotective, and because the i.m. injection of an inhibitor of Trk receptors diminished the protection, we conclude that such effects require a retrograde signaling from the neuromuscular junction to the spinal motoneurons. The protection after a simple peripheral route of administration of the fragment suggests a potential therapeutic use of this peptide to target spinal MNs exposed to excitotoxic conditions in vivo.
Collapse
Affiliation(s)
- Citlalli Netzahualcoyotzi
- División de Neurociencias, Instituto de Fisiología Celular, Universidad Nacional Autónoma de México, 04510, Ciudad de México, Mexico.
| | - Ricardo Tapia
- División de Neurociencias, Instituto de Fisiología Celular, Universidad Nacional Autónoma de México, 04510, Ciudad de México, Mexico.
| |
Collapse
|
66
|
Garza-Lombó C, Petrosyan P, Tapia-Rodríguez M, Valdovinos-Flores C, Gonsebatt ME. Systemic L-buthionine-S-R-sulfoximine administration modulates glutathione homeostasis via NGF/TrkA and mTOR signaling in the cerebellum. Neurochem Int 2018; 121:8-18. [PMID: 30300680 DOI: 10.1016/j.neuint.2018.10.007] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2018] [Revised: 10/02/2018] [Accepted: 10/03/2018] [Indexed: 12/11/2022]
Abstract
Glutathione (GSH) is an essential component of intracellular antioxidant systems that plays a primordial role in the protection of cells against oxidative stress, maintaining redox homeostasis and xenobiotic detoxification. GSH synthesis in the brain is limited by the availability of cysteine and glutamate. Cystine, the disulfide form of cysteine is transported into endothelial cells of the blood-brain barrier (BBB) and astrocytes via the system xc-, which is composed of xCT and the heavy chain of 4F2 cell surface antigen (4F2hc). Cystine is reduced inside the cells and the L-type amino acid transporter 1 (LAT1) transports cysteine from the endothelial cells into the brain, cysteine is transported into the neurons through the excitatory amino acid transporter 3 (EAAT3), also known as excitatory amino acid carrier 1 (EAAC1). The mechanistic/mammalian target of rapamycin (mTOR) and neurotrophins can activate signaling pathways that modulate amino acid transporters for GSH synthesis. The present study found that systemic L-buthionine-S-R-sulfoximine (BSO) administration selectively altered GSH homeostasis and EAAT3 levels in the mice cerebellum. Intraperitoneal treatment of mice with 6 mmol/kg of BSO depleted GSH and GSSG in the liver at 2 h of treatment. The cerebellum, but not other brain regions, exhibited a redox response. The mTOR and the neuronal growth factor (NGF)/tropomyosin receptor kinase A (TrkA) signaling pathways were activated and lead to an increase in the protein levels of the EAAT3 transporter, which was linked to an increase in the GSH/GSSG ratio and GSH concentration in the cerebellum at 0.5 and 2 h, respectively. Therefore, the cerebellum responds to peripheral GSH depletion via activation of the mTOR and NGF/TrkA pathways, which increase the transport of cysteine for GSH synthesis.
Collapse
Affiliation(s)
- Carla Garza-Lombó
- Departamento de Medicina Genómica y Toxicología Ambiental, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Mexico City, 04510, Mexico.
| | - Pavel Petrosyan
- Departamento de Medicina Genómica y Toxicología Ambiental, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Mexico City, 04510, Mexico.
| | - Miguel Tapia-Rodríguez
- Unidad de Microscopía, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Mexico City, 04510, Mexico.
| | - Cesar Valdovinos-Flores
- Departamento de Medicina Genómica y Toxicología Ambiental, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Mexico City, 04510, Mexico.
| | - María E Gonsebatt
- Departamento de Medicina Genómica y Toxicología Ambiental, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Mexico City, 04510, Mexico.
| |
Collapse
|
67
|
Luo J, Yang Y, Zhang T, Su Z, Yu D, Lin Q, Chen H, Zhang Q, Xiang Q, Xue W, Ge R, Huang Y. Nasal delivery of nerve growth factor rescue hypogonadism by up-regulating GnRH and testosterone in aging male mice. EBioMedicine 2018; 35:295-306. [PMID: 30131307 PMCID: PMC6161474 DOI: 10.1016/j.ebiom.2018.08.021] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2018] [Revised: 08/08/2018] [Accepted: 08/08/2018] [Indexed: 01/09/2023] Open
Abstract
BACKGROUND Nerve growth factor (NGF) plays essential roles in regulating the development and maintenance of central sympathetic and sensory neurons. However, the effects of NGF on hypogonadism remain unexplored. METHODS To assess the effects of NGF on hypogonadism, we established a convenient and noninvasive way to deliver NGF to the hypothalamus by spraying liposome-encapsulated NGF into the nasal cavity. The ten-month-old aging male senescence accelerate mouse P8 (SAMP8) mice with age-related hypogonadotrophic hypogonadism were used to study the role of NGF in hypogonadism. The age-matched accelerated senescence-resistant mouse R1 (SAMR1) served as a control. The ten-month-old SAMP8 mice were treated with NGF twice per week for 12 weeks. Sexual hormones, sexual behaviors, and fertility were analyzed after NGF treatment. And the mechanisms of NGF in sex hormones sexual function were also studied. FINDINGS NGF could enhance the sexual function, improve the quality of the sperm, and restore the fertility of aging male SAMP8 mice with age-related hypogonadism by activating gonadotropin-releasing hormone (GnRH) neuron and regulating secretion of GnRH. And NGF regulated the GnRH release through the PKC/p-ERK1/2/p-CREB signal pathway. INTERPRETATION These results suggest that NGF treatment could alleviate various age-related hypogonadism symptoms in male SAMP8 and may be usefulness for age-related hypogonadotrophic hypogonadism and its related subfertility. FUND: National Natural Science Foundation of China, Natural Science Foundation of Guangdong Province, the Science and Technology Plan Project of Guangzhou, Wenzhou Science & Technology Bureau, Guangdong Province Pearl River Scholar Fund, Guangdong province science and technology innovation leading Scholar Fund.
Collapse
Affiliation(s)
- Jiao Luo
- Department of Cell Biology & Guangdong Provincial Key Laboratory of Bioengineering Medicine, Jinan University, Guangzhou 510632, China
| | - Yan Yang
- Department of Cell Biology & Guangdong Provincial Key Laboratory of Bioengineering Medicine, Jinan University, Guangzhou 510632, China; Department of Biomedical Engineering, Jinan University, Guangzhou 510632, China
| | - Tiantian Zhang
- Department of Cell Biology & Guangdong Provincial Key Laboratory of Bioengineering Medicine, Jinan University, Guangzhou 510632, China
| | - Zhijian Su
- Department of Cell Biology & Guangdong Provincial Key Laboratory of Bioengineering Medicine, Jinan University, Guangzhou 510632, China
| | - Dan Yu
- Department of Pharmacology, Jinan University, Guangzhou 510632, China
| | - Qilian Lin
- Department of Cell Biology & Guangdong Provincial Key Laboratory of Bioengineering Medicine, Jinan University, Guangzhou 510632, China
| | - Haolin Chen
- Center of Scientific Research, The Second Affiliated Hospital, Wenzhou Medical University, Wenzhou 325027, China
| | - Qihao Zhang
- Department of Cell Biology & Guangdong Provincial Key Laboratory of Bioengineering Medicine, Jinan University, Guangzhou 510632, China
| | - Qi Xiang
- Department of Cell Biology & Guangdong Provincial Key Laboratory of Bioengineering Medicine, Jinan University, Guangzhou 510632, China; Department of Pharmacology, Jinan University, Guangzhou 510632, China
| | - Wei Xue
- Department of Biomedical Engineering, Jinan University, Guangzhou 510632, China
| | - Renshan Ge
- Center of Scientific Research, The Second Affiliated Hospital, Wenzhou Medical University, Wenzhou 325027, China
| | - Yadong Huang
- Department of Cell Biology & Guangdong Provincial Key Laboratory of Bioengineering Medicine, Jinan University, Guangzhou 510632, China; Department of Pharmacology, Jinan University, Guangzhou 510632, China.
| |
Collapse
|
68
|
Duan L, Hope JM, Guo S, Ong Q, François A, Kaplan L, Scherrer G, Cui B. Optical Activation of TrkA Signaling. ACS Synth Biol 2018; 7:1685-1693. [PMID: 29975841 DOI: 10.1021/acssynbio.8b00126] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Nerve growth factor/tropomyosin receptor kinase A (NGF/TrkA) signaling plays a key role in neuronal development, function, survival, and growth. The pathway is implicated in neurodegenerative disorders including Alzheimer's disease, chronic pain, inflammation, and cancer. NGF binds the extracellular domain of TrkA, leading to the activation of the receptor's intracellular kinase domain. As TrkA signaling is highly dynamic, mechanistic studies would benefit from a tool with high spatial and temporal resolution. Here we present the design and evaluation of four strategies for light-inducible activation of TrkA in the absence of NGF. Our strategies involve the light-sensitive protein Arabidopsis cryptochrome 2 and its binding partner CIB1. We demonstrate successful recapitulation of native NGF/TrkA functions by optical induction of plasma membrane recruitment and homo-interaction of the intracellular domain of TrkA. This approach activates PI3K/AKT and Raf/ERK signaling pathways, promotes neurite growth in PC12 cells, and supports survival of dorsal root ganglion neurons in the absence of NGF. This ability to activate TrkA using light bestows high spatial and temporal resolution for investigating NGF/TrkA signaling.
Collapse
Affiliation(s)
- Liting Duan
- Department of Chemistry, Stanford University, Stanford, California 94305, United States
| | - Jen M. Hope
- Department of Chemistry, Stanford University, Stanford, California 94305, United States
| | - Shunling Guo
- Department of Chemistry, Stanford University, Stanford, California 94305, United States
| | - Qunxiang Ong
- Department of Chemistry, Stanford University, Stanford, California 94305, United States
| | - Amaury François
- Department of Anesthesiology, Perioperative and Pain Medicine, Department of Molecular and Cellular Physiology, Department of Neurosurgery, Stanford Neurosciences Institute, Stanford University, Palo Alto, California 94304, United States
| | - Luke Kaplan
- Department of Chemistry, Stanford University, Stanford, California 94305, United States
| | - Grégory Scherrer
- Department of Anesthesiology, Perioperative and Pain Medicine, Department of Molecular and Cellular Physiology, Department of Neurosurgery, Stanford Neurosciences Institute, Stanford University, Palo Alto, California 94304, United States
- Robertson Investigator, New York Stem Cell Foundation, New York, New York 10019, United States
| | - Bianxiao Cui
- Department of Chemistry, Stanford University, Stanford, California 94305, United States
| |
Collapse
|
69
|
DHEA inhibits acute microglia-mediated inflammation through activation of the TrkA-Akt1/2-CREB-Jmjd3 pathway. Mol Psychiatry 2018; 23:1410-1420. [PMID: 28894299 DOI: 10.1038/mp.2017.167] [Citation(s) in RCA: 62] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/18/2016] [Revised: 05/05/2017] [Accepted: 06/20/2017] [Indexed: 12/16/2022]
Abstract
Dehydroepiandrosterone (DHEA) is the most abundant circulating steroid hormone in humans, produced by the adrenals, the gonads and the brain. DHEA was previously shown to bind to the nerve growth factor receptor, tropomyosin-related kinase A (TrkA), and to thereby exert neuroprotective effects. Here we show that DHEA reduces microglia-mediated inflammation in an acute lipopolysaccharide-induced neuro-inflammation model in mice and in cultured microglia in vitro. DHEA regulates microglial inflammatory responses through phosphorylation of TrkA and subsequent activation of a pathway involving Akt1/Akt2 and cAMP response element-binding protein. The latter induces the expression of the histone 3 lysine 27 (H3K27) demethylase Jumonji d3 (Jmjd3), which thereby controls the expression of inflammation-related genes and microglial polarization. Together, our data indicate that DHEA-activated TrkA signaling is a potent regulator of microglia-mediated inflammation in a Jmjd3-dependent manner, thereby providing the platform for potential future therapeutic interventions in neuro-inflammatory pathologies.
Collapse
|
70
|
Co-expression of NGF and PD-L1 on tumor-associated immune cells in the microenvironment of Merkel cell carcinoma. J Cancer Res Clin Oncol 2018; 144:1301-1308. [PMID: 29744662 DOI: 10.1007/s00432-018-2657-x] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2018] [Accepted: 05/02/2018] [Indexed: 12/17/2022]
Abstract
PURPOSE Merkel cell carcinoma (MCC) is a malignant neuroendocrine skin tumor with known viral association. The microenvironment and its interaction with the tumor via the programmed cell death protein 1 (PD-1) pathway are crucial for response to anti-PD-1/anti-PD-L1 treatments. However, not all patients respond, which is suggestive of additional mechanisms for tumor growth and/or persistence. We previously detected tropomyosin receptor kinase A (TrkA) expression on MCC tumor cells and, therefore, gained interest in the expression of its ligand nerve growth factor (NGF). METHODS Thirty-nine patients from our department were studied for immunohistochemical NGF, PD-1, and PD-L1 expression and clinico-pathological correlation. RESULTS PD-L1 was expressed on the tumor cells in 42%. In 95%, PD-L1 expression was also found on CD68+ spindle cells at the tumor border, which co-expressed NGF in 71%. 66% contained PD-1+ tumor infiltrating lymphocytes. PD-1, PD-L1, and NGF expression seems to correlate with a worse outcome. CONCLUSIONS The present study shows that PD-L1 and NGF are co-expressed on spindle cells in the microenvironment. The expression of NGF might be a link of the microenvironment to the TrkA-positive tumor cells. Whether this mechanism is critical for tumor growth and lack of response to anti-PD-1/L1 treatment has to be investigated in further studies.
Collapse
|
71
|
Duarte JG, Nascimento RD, Martins PR, d'Ávila Reis D. Evaluation of the immunoreactivity of nerve growth factor and tropomyosin receptor kinase A in the esophagus of noninfected and infected individuals with Trypanosoma cruzi. Parasitol Res 2018; 117:1647-1655. [PMID: 29550999 DOI: 10.1007/s00436-018-5838-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2017] [Accepted: 03/09/2018] [Indexed: 11/30/2022]
Abstract
Megaesophagus is one of the major manifestations of the chronic phase of Chagas disease. Its primary symptom is generally dysphagia due to disturbance in the lower esophageal sphincter. Microscopically, the affected organ presents denervation, which has been considered as consequence of an inflammatory process that begins at the acute phase and persists in the chronic phase. Inflammatory infiltrates are composed of lymphocytes, macrophages, natural killer cells, mast cells, and eosinophils. In this study, we evaluated the immunoreactivity of nerve growth factor (NGF), and of its receptor tropomyosin receptor kinase A (TrkA), molecules that are well known for having a relevant role in neuroimmune communication in the gastrointestinal tract. Esophageal samples obtained via autopsy or surgery procedures from six noninfected individuals, six infected individuals without megaesophagus, and six infected individuals with megaesophagus were analyzed. Infected individuals without megaesophagus presented increased numbers of NGF immunoreactive (IR) mast cells and increased areas of TrkA-IR epithelial cells and inner muscle cells. Infected individuals with megaesophagus showed increased numbers of NGF-IR eosinophils and mast cells, TrkA-IR eosinophils and mast cells, increased area of NGF-IR epithelial cells, and increased areas of TrkA-IR epithelials cells and inner muscle cells. The data presented here point to the participation of NGF and its TrkA receptor in the pathology of chagasic megaesophagus.
Collapse
Affiliation(s)
- Jacqueline Garcia Duarte
- Departamento de Morfologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Rodolfo Duarte Nascimento
- Departamento de Ciências Básicas da Vida, Instituto de Ciências da Vida, Universidade Federal de Juiz de Fora, Governador Valadares, Minas Gerais, Brazil.
| | - Patrícia Rocha Martins
- Departamento de Morfologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Débora d'Ávila Reis
- Departamento de Morfologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| |
Collapse
|
72
|
Yuan F, Lu W. Prediction of potential drivers connecting different dysfunctional levels in lung adenocarcinoma via a protein-protein interaction network. Biochim Biophys Acta Mol Basis Dis 2017; 1864:2284-2293. [PMID: 29197663 DOI: 10.1016/j.bbadis.2017.11.018] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2017] [Revised: 11/13/2017] [Accepted: 11/23/2017] [Indexed: 12/14/2022]
Abstract
Lung cancer is a serious disease that threatens an affected individual's life. Its pathogenesis has not yet to be fully described, thereby impeding the development of effective treatments and preventive measures. "Cancer driver" theory considers that tumor initiation can be associated with a number of specific mutations in genes called cancer driver genes. Four omics levels, namely, (1) methylation, (2) microRNA, (3) mutation, and (4) mRNA levels, are utilized to cluster cancer driver genes. In this study, the known dysfunctional genes of these four levels were used to identify novel driver genes of lung adenocarcinoma, a subtype of lung cancer. These genes could contribute to the initiation and progression of lung adenocarcinoma in at least two levels. First, random walk with restart algorithm was performed on a protein-protein interaction (PPI) network constructed with PPI information in STRING by using known dysfunctional genes as seed nodes for each level, thereby yielding four groups of possible genes. Second, these genes were further evaluated in a test strategy to exclude false positives and select the most important ones. Finally, after conducting an intersection operation in any two groups of genes, we obtained several inferred driver genes that contributed to the initiation of lung adenocarcinoma in at least two omics levels. Several genes from these groups could be confirmed according to recently published studies. The inferred genes reported in this study were also different from those described in a previous study, suggesting that they can be used as essential supplementary data for investigations on the initiation of lung adenocarcinoma. This article is part of a Special Issue entitled: Accelerating Precision Medicine through Genetic and Genomic Big Data Analysis edited by Yudong Cai & Tao Huang.
Collapse
Affiliation(s)
- Fei Yuan
- Department of Science & Technology, Binzhou Medical University Hospital, Binzhou 256603, Shandong, China.
| | - WenCong Lu
- Department of Chemistry, Shanghai University, Shanghai 200072, China.
| |
Collapse
|
73
|
Activation of the NGF/TrkA signaling pathway attenuates diabetic erectile dysfunction. Oncotarget 2017; 8:105692-105702. [PMID: 29285284 PMCID: PMC5739671 DOI: 10.18632/oncotarget.22389] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2017] [Accepted: 10/27/2017] [Indexed: 12/17/2022] Open
Abstract
Erectile dysfunction (ED) is a common complication of diabetes mellitus (DM). The exact role of the NGF/TrkA signaling pathway in the pathogenesis of diabetic ED is largely unknown. In the present study, we investigated the role of the NGF/TrkA signaling pathway in Sprague-Dawley rats with diabetic ED. Animals were divided into 2 groups: the normal group and the DM ED model group. The model group included the blank subgroup, the negative control (NC) subgroup, the TrkA subgroup and the TrkA + NGF subgroup. Erectile function, intracavernous pressure (ICP) and mean arterial pressure were measured respectively. Immunohistochemistry was used to examine the number of neuronal nitric oxide synthase (nNOS) expressing nerve fibers. The quantitative real-time polymerase chain reaction was applied to detect the mRNA expressions of NGF and TrkA in the cavernous tissue. Further, Western blotting was conducted to detect the expressions of NGF, TrkA and its downstream ERK pathway-related proteins. Higher erectile frequency, ICP values and diastolic function, more nNOS-positive nerve fibers, and decreased systolic function of the corpus cavernosum smooth muscle were found in the TrkA and TrkA+NGF groups when compared with the blank and the NC groups. Moreover, significantly higher mRNA expressions of NGF and TrkA, and upregulated protein expressions of NGF, TrkA, c-raf, ERK1/2 and CREB1 were found in the TrkA and the TrkA + NGF groups. In conclusion, downregulation in the NGF/TrkA signaling pathway may contribute to the pathogenesis of diabetic ED.
Collapse
|
74
|
Torres OV, Jayanthi S, McCoy MT, Cadet JL. Selective Activation of Striatal NGF-TrkA/p75NTR/MAPK Intracellular Signaling in Rats That Show Suppression of Methamphetamine Intake 30 Days following Drug Abstinence. Int J Neuropsychopharmacol 2017; 21:281-290. [PMID: 29165617 PMCID: PMC5838829 DOI: 10.1093/ijnp/pyx105] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/20/2017] [Accepted: 11/16/2017] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND The continuing epidemic of methamphetamine addiction has prompted research aimed at understanding striatal dysfunctions potentially associated with long-term methamphetamine use. METHODS Here, we investigated transcriptional and translational alterations in the expression of neurotrophic factors in the rat striatum at 30 days following methamphetamine self-administration and footshock punishment. Male Sprague-Dawley rats were trained to self-administer methamphetamine (0.1 mg/kg/injection, i.v.) or saline during twenty-two 9-hour sessions. Subsequently, rats were subjected to incremental footshocks for 13 additional methamphetamine self-administration sessions. This paradigm led to the identification of rats with shock-resistant and shock-sensitive phenotypes. Thirty days following the last footshock session, the dorsal striatum was dissected and processed for gene expression and protein analyses. RESULTS PCR arrays revealed significant differences in neurotrophins and their receptors between the 2 phenotypes. Brain-derived neurotrophic factor and nerve growth factor protein levels were increased in the dorsal striatum of both shock-resistant and shock-sensitive rats. However, neurotrophic receptor tyrosine kinase 1 phosphorylation and nerve growth factor receptor protein expression were increased only in the shock-sensitive phenotype. Moreover, shock-sensitive rats showed increased abundance of several phosphorylated proteins known to participate in Ras/Raf/MEK/ERK signaling cascade including cRaf, ERK1/2, MSK1, and CREB. CONCLUSIONS These findings support the notion that animals with distinct phenotypes for methamphetamine intake in the presence of adverse consequences also display differential changes in an intracellular signaling cascade activated by nerve growth factor-TrkA/p75NTR interactions. Thus, the development of pharmacological agents that can activate nerve growth factor-dependent pathways may be a promising therapeutic approach to combat methamphetamine addiction.
Collapse
Affiliation(s)
- Oscar V Torres
- Molecular Neuropsychiatry Research Branch, DHHS/NIH/NIDA Intramural Research Program, Baltimore, Maryland
| | - Subramaniam Jayanthi
- Molecular Neuropsychiatry Research Branch, DHHS/NIH/NIDA Intramural Research Program, Baltimore, Maryland
| | - Michael T McCoy
- Molecular Neuropsychiatry Research Branch, DHHS/NIH/NIDA Intramural Research Program, Baltimore, Maryland
| | - Jean Lud Cadet
- Molecular Neuropsychiatry Research Branch, DHHS/NIH/NIDA Intramural Research Program, Baltimore, Maryland,Correspondence: Jean Lud Cadet, MD, Chief, Molecular Neuropsychiatry Research Branch, DHHS/NIH/NIDA IRP, 251 Bayview Boulevard, Baltimore, MD 21224 ()
| |
Collapse
|
75
|
Wehkamp U, Stern S, Krüger S, Hauschild A, Röcken C, Egberts F. Tropomyosin Receptor Kinase A Expression on Merkel Cell Carcinoma Cells. JAMA Dermatol 2017; 153:1166-1169. [PMID: 28793172 DOI: 10.1001/jamadermatol.2017.2495] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
Importance Merkel cell carcinoma (MCC) is a malignant neuroendocrine skin tumor frequently associated with the Merkel cell polyomavirus. Immune checkpoint therapy showed remarkable results, although not all patients are responsive to this therapy. Anti-tropomyosin receptor kinase A (TrkA)-targeted treatment has shown promising results in several tumor entities. Objective To determine TrkA expression in MCC as a rationale for potential targeted therapy. Design, Setting, and Participants This case series study investigated the MCC specimens of 55 patients treated at the Department of Dermatology, University Hospital of Schleswig-Holstein, Kiel, Germany, from January 1, 2005, through December 31, 2015. Thirty-nine of the 55 samples were suitable for further histopathologic examination. Expression of TrkA was explored by immunohistochemical analysis. Exposure Diagnosis of MCC was confirmed by staining positive for cytokeratin 20 (CK20) and synaptophysin. Main Outcomes and Measures Expression of TrkA on the tumor cells. Results Specimens of 39 patients (21 women and 18 men; mean [SD] age, 75.0 [7.8] years) underwent immunohistochemical investigation. Thirty-eight of 38 specimens expressed CK20 and synaptophysin on the MCC tumor cells (100% expression). Merkel cell polyomavirus was detected in 32 of 38 specimens (84%). Tropomyosin receptor kinase A was found in all 36 evaluable specimens on the tumor cells; 34 (94%) showed a weak and 2 (6%) showed a strong cytoplasmic expression. In addition, strongly positive perinuclear dots were observed in 30 of 36 specimens (83%). Conclusions and Relevance Tropomyosin receptor kinase A was expressed on MCC tumor cells in 100% of evaluable specimens. This result may lead to the exploration of new targeted treatment options in MCC, especially for patients who do not respond to anti-programmed cell death protein 1 treatment.
Collapse
Affiliation(s)
- Ulrike Wehkamp
- Department of Dermatology, University Hospital Schleswig-Holstein, Kiel, Germany
| | - Sophie Stern
- Department of Dermatology, University Hospital Schleswig-Holstein, Kiel, Germany
| | - Sandra Krüger
- Department of Pathology, University Hospital Schleswig-Holstein, Kiel, Germany
| | - Axel Hauschild
- Department of Dermatology, University Hospital Schleswig-Holstein, Kiel, Germany
| | - Christoph Röcken
- Department of Pathology, University Hospital Schleswig-Holstein, Kiel, Germany
| | - Friederike Egberts
- Department of Dermatology, University Hospital Schleswig-Holstein, Kiel, Germany
| |
Collapse
|
76
|
Zhong SJ, Gong YH, Lin YC. Combined intranasal nerve growth factor and ventricle neural stem cell grafts prolong survival and improve disease outcome in amyotrophic lateral sclerosis transgenic mice. Neurosci Lett 2017; 656:1-8. [PMID: 28694091 DOI: 10.1016/j.neulet.2017.07.005] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2017] [Revised: 05/29/2017] [Accepted: 07/05/2017] [Indexed: 12/12/2022]
Abstract
Amyotrophic lateral sclerosis (ALS) is a fatal disease that selectively involves motor neurons. Neurotrophic factor supplementation and neural stem cell (NSC) alternative therapy have been used to treat ALS. The two approaches can affect each other in their pathways of action, and there is a possibility for synergism. However, to date, there have been no studies demonstrating the effects of combined therapy in the treatment of ALS. In this study, for the first time, we adopted a method involving the intranasal administration of nerve growth factor combined with lateral ventricle NSC transplantation using G93A-SOD1 transgenic mice as experimental subjects to explore the treatment effect of this combined therapy in ALS. We discover that the combined therapy increase the quantity of TrkA receptors, broaden the migration of exogenous NSCs, further promote active proliferation in neurogenic regions of the brain and enhance the preservation of motor neurons in the spinal cord. Regarding physical activity, the combined therapy improved motor functions, further postponed ALS onset and extended the survival time of the mice.
Collapse
Affiliation(s)
- Shi-Jiang Zhong
- Department of Neurology, Logistic University Affiliated Hospital, Logistic University of Chinese People's Armed Police Force, Tianjin 300162, PR China
| | - Yan-Hua Gong
- Department of Biochemistry and Molecular Biology, Logistic University of the Chinese People's Armed Police Force, Tianjin, PR China
| | - Yan-Chen Lin
- Department of Neurology, Logistic University Affiliated Hospital, Logistic University of Chinese People's Armed Police Force, Tianjin 300162, PR China.
| |
Collapse
|
77
|
Skaper SD. Nerve growth factor: a neuroimmune crosstalk mediator for all seasons. Immunology 2017; 151:1-15. [PMID: 28112808 PMCID: PMC5382350 DOI: 10.1111/imm.12717] [Citation(s) in RCA: 122] [Impact Index Per Article: 17.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2016] [Revised: 01/16/2017] [Accepted: 01/18/2017] [Indexed: 12/13/2022] Open
Abstract
Neurotrophic factors comprise a broad family of biomolecules - most of which are peptides or small proteins - that support the growth, survival and differentiation of both developing and mature neurons. The prototypical example and best-characterized neurotrophic factor is nerve growth factor (NGF), which is widely recognized as a target-derived factor responsible for the survival and maintenance of the phenotype of specific subsets of peripheral neurons and basal forebrain cholinergic nuclei during development and maturation. In addition to being active in a wide array of non-nervous system cells, NGF is also synthesized by a range of cell types not considered as classical targets for innervation by NGF-dependent neurons; these include cells of the immune-haematopoietic lineage and populations in the brain involved in neuroendocrine functions. NGF concentrations are elevated in numerous inflammatory and autoimmune states such as multiple sclerosis, chronic arthritis, systemic lupus erythematosus and mastocytosis, in conjunction with increased accumulation of mast cells. Intriguingly, NGF seems to be linked also with diabetic pathology and insulin homeostasis. Mast cells and NGF appear involved in neuroimmune interactions and tissue inflammation. As mast cells are capable of producing and responding to NGF, this suggests that alterations in mast cell behaviour could provoke maladaptive neuroimmune tissue responses, including those of an autoimmune nature. Moreover, NGF exerts a modulatory role on sensory nociceptive nerve physiology in the adult, which appears to correlate with hyperalgesic phenomena occurring in tissue inflammation. NGF can therefore be viewed as a multifactorial modulator of neuro-immune-endocrine functions.
Collapse
Affiliation(s)
- Stephen D. Skaper
- Department of Pharmaceutical and Pharmacological SciencesUniversity of PaduaPaduaItaly
| |
Collapse
|
78
|
Moosavi F, Hosseini R, Rajaian H, Silva T, Magalhães E Silva D, Saso L, Edraki N, Miri R, Borges F, Firuzi O. Derivatives of caffeic acid, a natural antioxidant, as the basis for the discovery of novel nonpeptidic neurotrophic agents. Bioorg Med Chem 2017; 25:3235-3246. [PMID: 28495385 DOI: 10.1016/j.bmc.2017.04.026] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2017] [Accepted: 04/09/2017] [Indexed: 01/01/2023]
Abstract
Neurodegenerative disorders, such as Parkinson's disease and Alzheimer's disease, threaten the lives of millions of people and the number of affected patients is constantly growing with the increase of the aging population. Small molecule neurotrophic agents represent promising therapeutics for the pharmacological management of neurodegenerative diseases. In this study, a series of caffeic acid amide analogues with variable alkyl chain lengths, including ACAF3 (C3), ACAF4 (C4), ACAF6 (C6), ACAF8 (C8) and ACAF12 (C12) were synthesized and their neurotrophic activity was examined by different methods in PC12 neuronal cells. We found that all caffeic acid amide derivatives significantly increased survival in PC12 neuronal cells in serum-deprived conditions at 25μM, as measured by the MTT assay. ACAF4, ACAF6 and ACAF8 at 5µM also significantly enhanced the effect of nerve growth factor (NGF) in inducing neurite outgrowth, a sign of neuronal differentiation. The neurotrophic effects of amide derivatives did not seem to be mediated by direct activation of tropomyosin receptor kinase A (TrkA) receptor, since K252a, a potent TrkA antagonist, did not block the neuronal survival enhancement effect. Similarly, the active compounds did not activate TrkA as measured by immunoblotting with anti-phosphoTrkA antibody. We also examined the effect of amide derivatives on signaling pathways involved in survival and differentiation by immunoblotting. ACAF4 and ACAF12 induced ERK1/2 phosphorylation in PC12 cells at 5 and 25µM, while ACAF12 was also able to significantly increase AKT phosphorylation at 5 and 25µM. Molecular docking studies indicated that compared to the parental compound caffeic acid, ACAF12 exhibited higher binding energy with phosphoinositide 3-kinase (PI3K) as a putative molecular target. Based on Lipinski's rule of five, all of the compounds obeyed three molecular descriptors (HBD, HBA and MM) in drug-likeness test. Taken together, these findings show for the first time that caffeic amides possess strong neurotrophic effects exerted via modulation of ERK1/2 and AKT signaling pathways presumably by activation of PI3K and thus represent promising agents for the discovery of neurotrophic compounds for management of neurodegenerative diseases.
Collapse
Affiliation(s)
- Fatemeh Moosavi
- Medicinal and Natural Products Chemistry Research Center, Shiraz University of Medical Sciences, Shiraz, Iran; Department of Pharmacology, School of Veterinary Medicine, Shiraz University, Shiraz, Iran
| | - Razieh Hosseini
- Medicinal and Natural Products Chemistry Research Center, Shiraz University of Medical Sciences, Shiraz, Iran; Department of Pharmacology, School of Veterinary Medicine, Shiraz University, Shiraz, Iran
| | - Hamid Rajaian
- Department of Pharmacology, School of Veterinary Medicine, Shiraz University, Shiraz, Iran
| | - Tiago Silva
- CIQUP/Department of Chemistry and Biochemistry, Faculty of Sciences, University of Porto, 4169-007 Porto, Portugal
| | - Diogo Magalhães E Silva
- CIQUP/Department of Chemistry and Biochemistry, Faculty of Sciences, University of Porto, 4169-007 Porto, Portugal
| | - Luciano Saso
- Department of Physiology and Pharmacology "Vittorio Erspamer", Sapienza University of Rome, Italy
| | - Najmeh Edraki
- Medicinal and Natural Products Chemistry Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Ramin Miri
- Medicinal and Natural Products Chemistry Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Fernanda Borges
- CIQUP/Department of Chemistry and Biochemistry, Faculty of Sciences, University of Porto, 4169-007 Porto, Portugal.
| | - Omidreza Firuzi
- Medicinal and Natural Products Chemistry Research Center, Shiraz University of Medical Sciences, Shiraz, Iran.
| |
Collapse
|
79
|
Garcia TB, Hollborn M, Bringmann A. Expression and signaling of NGF in the healthy and injured retina. Cytokine Growth Factor Rev 2017; 34:43-57. [PMID: 27964967 DOI: 10.1016/j.cytogfr.2016.11.005] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2016] [Accepted: 11/28/2016] [Indexed: 01/02/2023]
Abstract
This review summarizes the present knowledge concerning the retinal localization of the nerve growth factor (NGF), its precursor proNGF, and the receptors TrkA and p75NTR in the developing and mature rodent retina. We further discuss the changes in the expression of NGF and the receptors in experimental models of retinal disorders and diseases like inherited retinitis pigmentosa, retinal detachment, glaucoma, and diabetic retinopathy. Since proNGF is now recognized as a bioactive signaling molecule which induces cell death through p75NTR activation, the role of proNGF in the induction of retinal cell loss under neurodegenerative conditions is also highlighted. In addition, we present the evidences for a potential therapeutic intervention with NGF for the treatment of retinal neurodegenerative diseases. Different strategies have been developed and experimentally tested in mice and rats in order to reduce cell loss and Müller cell gliosis, e.g., increasing the availability of endogenous NGF, administration of exogenous NGF, activation of TrkA, and inhibition of p75NTR. Here, we discuss the several lines of evidence supporting a protective effect of NGF on retinal cell loss, with specific emphasis on photoreceptor and retinal ganglion cell degeneration. A better understanding of the mechanisms underlying the effects of NGF and proNGF in the modulation of neurodegeneration and gliosis in the retina will help to develop efficient therapeutic strategies for various retinal diseases.
Collapse
Affiliation(s)
| | - Margrit Hollborn
- Department of Ophthalmology and Eye Hospital, University of Leipzig, Leipzig, Germany
| | - Andreas Bringmann
- Department of Ophthalmology and Eye Hospital, University of Leipzig, Leipzig, Germany
| |
Collapse
|
80
|
Activity-dependent synapse to nucleus signaling. Neurobiol Learn Mem 2017; 138:78-84. [DOI: 10.1016/j.nlm.2016.07.024] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2016] [Revised: 07/20/2016] [Accepted: 07/23/2016] [Indexed: 11/15/2022]
|
81
|
Abstract
Cell polarity refers to the asymmetric localization of cellular components that allows cells to carry out their specialized functions, be they epithelial barrier function, transmission of action potentials in nerve cells, or modulation of the immune response. The establishment and maintenance of cell polarity requires the directed trafficking of membrane proteins and lipids - essential processes that are mediated by Rab GTPases. Interestingly, several of the Rabs that impact polarity are present in the earliest eukaryotes, and the Rab polarity repertoire has expanded as cells have become more complex. There is a substantial conservation of Rab function across diverse cell types. Rabs act through an assortment of effector proteins that include scaffolding proteins, cytoskeletal motors, and other small GTPases. In this review we highlight the similarities and differences in Rab function for the instruction of polarity in diverse cell types.
Collapse
Affiliation(s)
- Sara S Parker
- a Department of Cellular and Molecular Medicine , University of Arizona , Tucson , AZ , USA
| | - Christopher Cox
- a Department of Cellular and Molecular Medicine , University of Arizona , Tucson , AZ , USA
| | - Jean M Wilson
- a Department of Cellular and Molecular Medicine , University of Arizona , Tucson , AZ , USA
| |
Collapse
|
82
|
Pramanik S, Sulistio YA, Heese K. Neurotrophin Signaling and Stem Cells-Implications for Neurodegenerative Diseases and Stem Cell Therapy. Mol Neurobiol 2016; 54:7401-7459. [PMID: 27815842 DOI: 10.1007/s12035-016-0214-7] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2016] [Accepted: 10/11/2016] [Indexed: 02/07/2023]
Abstract
Neurotrophins (NTs) are members of a neuronal growth factor protein family whose action is mediated by the tropomyosin receptor kinase (TRK) receptor family receptors and the p75 NT receptor (p75NTR), a member of the tumor necrosis factor (TNF) receptor family. Although NTs were first discovered in neurons, recent studies have suggested that NTs and their receptors are expressed in various types of stem cells mediating pivotal signaling events in stem cell biology. The concept of stem cell therapy has already attracted much attention as a potential strategy for the treatment of neurodegenerative diseases (NDs). Strikingly, NTs, proNTs, and their receptors are gaining interest as key regulators of stem cells differentiation, survival, self-renewal, plasticity, and migration. In this review, we elaborate the recent progress in understanding of NTs and their action on various stem cells. First, we provide current knowledge of NTs, proNTs, and their receptor isoforms and signaling pathways. Subsequently, we describe recent advances in the understanding of NT activities in various stem cells and their role in NDs, particularly Alzheimer's disease (AD) and Parkinson's disease (PD). Finally, we compile the implications of NTs and stem cells from a clinical perspective and discuss the challenges with regard to transplantation therapy for treatment of AD and PD.
Collapse
Affiliation(s)
- Subrata Pramanik
- Graduate School of Biomedical Science and Engineering, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul, 133-791, Republic of Korea
| | - Yanuar Alan Sulistio
- Graduate School of Biomedical Science and Engineering, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul, 133-791, Republic of Korea
| | - Klaus Heese
- Graduate School of Biomedical Science and Engineering, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul, 133-791, Republic of Korea.
| |
Collapse
|
83
|
Khodorova A, Nicol GD, Strichartz G. The TrkA receptor mediates experimental thermal hyperalgesia produced by nerve growth factor: Modulation by the p75 neurotrophin receptor. Neuroscience 2016; 340:384-397. [PMID: 27826102 DOI: 10.1016/j.neuroscience.2016.10.064] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2016] [Revised: 10/24/2016] [Accepted: 10/30/2016] [Indexed: 10/20/2022]
Abstract
The p75 neurotrophin receptor (p75NTR) and its activation of the sphingomyelin signaling cascade are essential for mechanical hypersensitivity resulting from locally injected nerve growth factor (NGF). Here the roles of the same effectors, and of the tropomyosin receptor kinase A (TrkA) receptor, are evaluated for thermal hyperalgesia from NGF. Sensitivity of rat hind paw plantar skin to thermal stimulation after local sub-cutaneous injection of NGF (500ng) was measured by the latency for paw withdrawal (PWL) from a radiant heat source. PWL was reduced from baseline values at 0.5-22h by ∼40% from that in naïve or vehicle-injected rats, and recovered to pre-injection levels by 48h. Local pre-injection with a p75NTR blocking antibody did not affect the acute thermal hyperalgesia (0.5-3.5h) but hastened its recovery so that it had reversed to baseline by 22h. In addition, GW4869 (2mM), an inhibitor of the neutral sphingomyelinase (nSMase) that is an enzyme in the p75NTR pathway, also failed to prevent thermal hyperalgesia. However, C2-ceramide, an analog of the ceramide produced by sphingomyelinase, did cause thermal hyperalgesia. Injection of an anti-TrkA antibody known to promote dimerization and activation of that receptor, independent of NGF, also caused thermal hyperalgesia, and prevented the further reduction of PWL from subsequently injected NGF. A non-specific inhibitor of tropomyosin receptor kinases, K252a, prevented thermal hyperalgesia from NGF, but not that from the anti-TrkA antibody. These findings suggest that the TrkA receptor has a predominant role in thermal hypersensitivity induced by NGF, while p75NTR and its pathway intermediates serve a modulatory role.
Collapse
Affiliation(s)
- Alla Khodorova
- Pain Research Center, Department of Anesthesiology, Perioperative and Pain Medicine, Brigham & Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Grant D Nicol
- Department of Pharmacology and Toxicology, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - Gary Strichartz
- Pain Research Center, Department of Anesthesiology, Perioperative and Pain Medicine, Brigham & Women's Hospital, Harvard Medical School, Boston, MA, USA.
| |
Collapse
|
84
|
Flux of signalling endosomes undergoing axonal retrograde transport is encoded by presynaptic activity and TrkB. Nat Commun 2016; 7:12976. [PMID: 27687129 PMCID: PMC5427517 DOI: 10.1038/ncomms12976] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2015] [Accepted: 08/23/2016] [Indexed: 01/01/2023] Open
Abstract
Axonal retrograde transport of signalling endosomes from the nerve terminal to the soma underpins survival. As each signalling endosome carries a quantal amount of activated receptors, we hypothesized that it is the frequency of endosomes reaching the soma that determines the scale of the trophic signal. Here we show that upregulating synaptic activity markedly increased the flux of plasma membrane-derived retrograde endosomes (labelled using cholera toxin subunit-B: CTB) in hippocampal neurons cultured in microfluidic devices, and live Drosophila larval motor neurons. Electron and super-resolution microscopy analyses revealed that the fast-moving sub-diffraction-limited CTB carriers contained the TrkB neurotrophin receptor, transiently activated by synaptic activity in a BDNF-independent manner. Pharmacological and genetic inhibition of TrkB activation selectively prevented the coupling between synaptic activity and the retrograde flux of signalling endosomes. TrkB activity therefore controls the encoding of synaptic activity experienced by nerve terminals, digitalized as the flux of retrogradely transported signalling endosomes. Signalling endosomes are known to be essential for neuronal survival. Here the authors show that, in cultured hippocampal neurons and live Drosophila larval motor neurons, neuronal activity increases the retrograde flux of signalling endosomes, and this coupling depends on TrkB activation.
Collapse
|
85
|
Wu C, Cui Z, Liu Y, Zhang J, Ding W, Wang S, Bao G, Xu G, Sun Y, Chen J. The importance of EHD1 in neurite outgrowth contributing to the functional recovery after spinal cord injury. Int J Dev Neurosci 2016; 52:24-32. [PMID: 27211346 DOI: 10.1016/j.ijdevneu.2016.05.007] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2016] [Revised: 05/11/2016] [Accepted: 05/18/2016] [Indexed: 11/15/2022] Open
Affiliation(s)
- Chunshuai Wu
- Department of Spine Surgery, The Second Affiliated Hospital of Nantong University, Nantong University, Haier Lane North Road No. 6, Nantong, 226001, Jiangsu, People's Republic of China; Jiangsu Province Key Laboratory for Inflammation and Molecular Drug Target, Medical College, Nantong University, Nantong, 226001, Jiangsu, People's Republic of China
| | - Zhiming Cui
- Department of Spine Surgery, The Second Affiliated Hospital of Nantong University, Nantong University, Haier Lane North Road No. 6, Nantong, 226001, Jiangsu, People's Republic of China; Jiangsu Province Key Laboratory for Inflammation and Molecular Drug Target, Medical College, Nantong University, Nantong, 226001, Jiangsu, People's Republic of China.
| | - Yonghua Liu
- Jiangsu Province Key Laboratory for Inflammation and Molecular Drug Target, Medical College, Nantong University, Nantong, 226001, Jiangsu, People's Republic of China
| | - Jinlong Zhang
- Department of Spine Surgery, The Second Affiliated Hospital of Nantong University, Nantong University, Haier Lane North Road No. 6, Nantong, 226001, Jiangsu, People's Republic of China
| | - Wensen Ding
- Jiangsu Province Key Laboratory for Inflammation and Molecular Drug Target, Medical College, Nantong University, Nantong, 226001, Jiangsu, People's Republic of China
| | - Song Wang
- Department of Spine Surgery, The Second Affiliated Hospital of Nantong University, Nantong University, Haier Lane North Road No. 6, Nantong, 226001, Jiangsu, People's Republic of China; Jiangsu Province Key Laboratory for Inflammation and Molecular Drug Target, Medical College, Nantong University, Nantong, 226001, Jiangsu, People's Republic of China
| | - Guofeng Bao
- Department of Spine Surgery, The Second Affiliated Hospital of Nantong University, Nantong University, Haier Lane North Road No. 6, Nantong, 226001, Jiangsu, People's Republic of China
| | - Guanhua Xu
- Department of Spine Surgery, The Second Affiliated Hospital of Nantong University, Nantong University, Haier Lane North Road No. 6, Nantong, 226001, Jiangsu, People's Republic of China
| | - Yuyu Sun
- Department of Spine Surgery, The Second Affiliated Hospital of Nantong University, Nantong University, Haier Lane North Road No. 6, Nantong, 226001, Jiangsu, People's Republic of China
| | - Jiajia Chen
- Department of Spine Surgery, The Second Affiliated Hospital of Nantong University, Nantong University, Haier Lane North Road No. 6, Nantong, 226001, Jiangsu, People's Republic of China
| |
Collapse
|
86
|
Tourtellotte WG. Axon Transport and Neuropathy: Relevant Perspectives on the Etiopathogenesis of Familial Dysautonomia. THE AMERICAN JOURNAL OF PATHOLOGY 2015; 186:489-99. [PMID: 26724390 DOI: 10.1016/j.ajpath.2015.10.022] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/05/2015] [Accepted: 10/30/2015] [Indexed: 12/15/2022]
Abstract
Peripheral neuropathies are highly prevalent and are most often associated with chronic disease, side effects from chemotherapy, or toxic-metabolic abnormalities. Neuropathies are less commonly caused by genetic mutations, but studies of the normal function of mutated proteins have identified particular vulnerabilities that often implicate mitochondrial dynamics and axon transport mechanisms. Hereditary sensory and autonomic neuropathies are a group of phenotypically related diseases caused by monogenic mutations that primarily affect sympathetic and sensory neurons. Here, I review evidence to indicate that many genetic neuropathies are caused by abnormalities in axon transport. Moreover, in hereditary sensory and autonomic neuropathies. There may be specific convergence on gene mutations that disrupt nerve growth factor signaling, upon which sympathetic and sensory neurons critically depend.
Collapse
Affiliation(s)
- Warren G Tourtellotte
- Division of Neuropathology, Department of Pathology, and the Department of Neurology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois.
| |
Collapse
|
87
|
Nerve Growth Factor Regulates Transient Receptor Potential Vanilloid 2 via Extracellular Signal-Regulated Kinase Signaling To Enhance Neurite Outgrowth in Developing Neurons. Mol Cell Biol 2015; 35:4238-52. [PMID: 26416880 DOI: 10.1128/mcb.00549-15] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2015] [Accepted: 09/21/2015] [Indexed: 12/13/2022] Open
Abstract
Neurite outgrowth is key to the formation of functional circuits during neuronal development. Neurotrophins, including nerve growth factor (NGF), increase neurite outgrowth in part by altering the function and expression of Ca(2+)-permeable cation channels. Here we report that transient receptor potential vanilloid 2 (TRPV2) is an intracellular Ca(2+)-permeable TRPV channel upregulated by NGF via the mitogen-activated protein kinase (MAPK) signaling pathway to augment neurite outgrowth. TRPV2 colocalized with Rab7, a late endosome protein, in addition to TrkA and activated extracellular signal-regulated kinase (ERK) in neurites, indicating that the channel is closely associated with signaling endosomes. In line with these results, we showed that TRPV2 acts as an ERK substrate and identified the motifs necessary for phosphorylation of TRPV2 by ERK. Furthermore, neurite length, TRPV2 expression, and TRPV2-mediated Ca(2+) signals were reduced by mutagenesis of these key ERK phosphorylation sites. Based on these findings, we identified a previously uncharacterized mechanism by which ERK controls TRPV2-mediated Ca(2+) signals in developing neurons and further establish TRPV2 as a critical intracellular ion channel in neuronal function.
Collapse
|
88
|
Maino B, D'Agata V, Severini C, Ciotti MT, Calissano P, Copani A, Chang YC, DeLisi C, Cavallaro S. Igf1 and Pacap rescue cerebellar granule neurons from apoptosis via a common transcriptional program. Cell Death Discov 2015; 1. [PMID: 26941962 PMCID: PMC4773033 DOI: 10.1038/cddiscovery.2015.29] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
A shift of the delicate balance between apoptosis and survival-inducing signals determines the fate of neurons during the development of the central nervous system and its homeostasis throughout adulthood. Both pathways, promoting or protecting from apoptosis, trigger a transcriptional program. We conducted whole-genome expression profiling to decipher the transcriptional regulatory elements controlling the apoptotic/survival switch in cerebellar granule neurons following the induction of apoptosis by serum and potassium deprivation or their rescue by either insulin-like growth factor-1 (Igf1) or pituitary adenylyl cyclase-activating polypeptide (Pacap). Although depending on different upstream signaling pathways, the survival effects of Igf1 and Pacap converged into common transcriptional cascades, thus suggesting the existence of a general transcriptional program underlying neuronal survival.
Collapse
Affiliation(s)
- Barbara Maino
- Institute of Neurological Sciences, Italian National Research Council, 95126 Catania, Italy
| | - Velia D'Agata
- Department of Biomedical and Biotechnological Sciences, Section of Human Anatomy and Histology, University of Catania, 95123 Catania, Italy
| | - Cinzia Severini
- Institute of Neurobiology and Molecular Medicine, Italian National Research Council, 00143 Roma, Italy
| | | | | | - Agata Copani
- Department of Drug Sciences, University of Catania, 95125 Catania, Italy
| | - Yi-Chien Chang
- Center for Advanced Genomic Technology, Boston University, Boston, MA 02215, USA
| | - Charles DeLisi
- Department of Biomedical Engineering, Boston University, Boston, MA 02215, USA
| | - Sebastiano Cavallaro
- Institute of Neurological Sciences, Italian National Research Council, 95126 Catania, Italy
| |
Collapse
|
89
|
Gao FJ, Hebbar S, Gao XA, Alexander M, Pandey JP, Walla MD, Cotham WE, King SJ, Smith DS. GSK-3β Phosphorylation of Cytoplasmic Dynein Reduces Ndel1 Binding to Intermediate Chains and Alters Dynein Motility. Traffic 2015; 16:941-61. [PMID: 26010407 PMCID: PMC4543430 DOI: 10.1111/tra.12304] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2014] [Revised: 05/18/2015] [Accepted: 05/19/2015] [Indexed: 12/17/2022]
Abstract
Glycogen synthase kinase 3 (GSK‐3) has been linked to regulation of kinesin‐dependent axonal transport in squid and flies, and to indirect regulation of cytoplasmic dynein. We have now found evidence for direct regulation of dynein by mammalian GSK‐3β in both neurons and non‐neuronal cells. GSK‐3β coprecipitates with and phosphorylates mammalian dynein. Phosphorylation of dynein intermediate chain (IC) reduces its interaction with Ndel1, a protein that contributes to dynein force generation. Two conserved residues, S87/T88 in IC‐1B and S88/T89 in IC‐2C, have been identified as GSK‐3 targets by both mass spectrometry and site‐directed mutagenesis. These sites are within an Ndel1‐binding domain, and mutation of both sites alters the interaction of IC's with Ndel1. Dynein motility is stimulated by (i) pharmacological and genetic inhibition of GSK‐3β, (ii) an insulin‐sensitizing agent (rosiglitazone) and (iii) manipulating an insulin response pathway that leads to GSK‐3β inactivation. Thus, our study connects a well‐characterized insulin‐signaling pathway directly to dynein stimulation via GSK‐3 inhibition.
Collapse
Affiliation(s)
- Feng J Gao
- Department of Biological Sciences, University of South Carolina, Columbia, SC, 29208, USA
| | - Sachin Hebbar
- Bioinformatics Group, Immune Tolerance Network, Bethesda, MD, 20814, USA
| | - Xu A Gao
- Department of Biological Sciences, University of South Carolina, Columbia, SC, 29208, USA
| | - Michael Alexander
- Department of Biological Sciences, University of South Carolina, Columbia, SC, 29208, USA
| | - Jai P Pandey
- Whitehead Institute for Biomedical Research, Massachusetts Institute of Technology, Cambridge, MA, 02142, USA
| | - Michael D Walla
- Mass Spectrometry Center, Department of Chemistry & Biochemistry, University of South Carolina, Columbia, SC, 29208, USA
| | - William E Cotham
- Mass Spectrometry Center, Department of Chemistry & Biochemistry, University of South Carolina, Columbia, SC, 29208, USA
| | - Stephen J King
- Burnett School of Biomedical Sciences, College of Medicine, University of Central Florida, Orlando, FL, 32828, USA
| | - Deanna S Smith
- Department of Biological Sciences, University of South Carolina, Columbia, SC, 29208, USA
| |
Collapse
|