1
|
Lawler NB, Bhatt U, Agarwal V, Evans CW, Kaluskar P, Amos SE, Chen K, Yao Y, Jiang H, Choi YS, Zheng M, Spagnoli D, Suarez-Martinez I, Zetterlund PB, Wallace VP, Harvey AR, Hodgetts SI, Iyer KS. Transcriptomic Analysis Reveals the Heterogeneous Role of Conducting Films Upon Electrical Stimulation. Adv Healthc Mater 2024:e2400364. [PMID: 39221662 DOI: 10.1002/adhm.202400364] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2024] [Revised: 07/17/2024] [Indexed: 09/04/2024]
Abstract
Central nervous system (CNS) injuries and neurodegenerative diseases have markedly poor prognoses and can result in permanent dysfunction due to the general inability of CNS neurons to regenerate. Differentiation of transplanted stem cells has emerged as a therapeutic avenue to regenerate tissue architecture in damaged areas. Electrical stimulation is a promising approach for directing the differentiation outcomes and pattern of outgrowth of transplanted stem cells, however traditional inorganic bio-electrodes can induce adverse effects such as inflammation. This study demonstrates the implementation of two organic thin films, a polymer/reduced graphene oxide nanocomposite (P(rGO)) and PEDOT:PSS, that have favorable properties for implementation as conductive materials for electrical stimulation, as well as an inorganic indium tin oxide (ITO) conductive film. Transcriptomic analysis reveals that electrical stimulation improves neuronal differentiation of SH-SY5Y cells on all three films, with the greatest effect for P(rGO). Unique material- and electrical stimuli-mediated effects are observed, associated with differentiation, cell-substrate adhesion, and translation. The work demonstrates that P(rGO) and PEDOT:PSS are highly promising organic materials for the development of biocompatible, conductive scaffolds that will enhance electrically-aided stem cell therapeutics for CNS injuries and neurodegenerative diseases.
Collapse
Affiliation(s)
- Nicholas B Lawler
- School of Molecular Sciences, The University of Western Australia, Perth, WA, 6009, Australia
- School of Physics, Mathematics and Computing, The University of Western Australia, Perth, WA, 6009, Australia
- ARC Training Centre for Next-Gen Technologies in Biomedical Analysis, School of Molecular Sciences, The University of Western Australia, Perth, WA, 6009, Australia
| | - Uditi Bhatt
- School of Molecular Sciences, The University of Western Australia, Perth, WA, 6009, Australia
- ARC Training Centre for Next-Gen Technologies in Biomedical Analysis, School of Molecular Sciences, The University of Western Australia, Perth, WA, 6009, Australia
| | - Vipul Agarwal
- Cluster for Advanced Macromolecular Design (CAMD), School of Chemical Engineering, University of New South Wales, Sydney, NSW, 2052, Australia
| | - Cameron W Evans
- School of Molecular Sciences, The University of Western Australia, Perth, WA, 6009, Australia
- ARC Training Centre for Next-Gen Technologies in Biomedical Analysis, School of Molecular Sciences, The University of Western Australia, Perth, WA, 6009, Australia
| | - Priya Kaluskar
- School of Molecular Sciences, The University of Western Australia, Perth, WA, 6009, Australia
- ARC Training Centre for Next-Gen Technologies in Biomedical Analysis, School of Molecular Sciences, The University of Western Australia, Perth, WA, 6009, Australia
- Perron Institute for Neurological and Translational Science, Perth, WA, 6009, Australia
- Centre for Orthopaedic Research, The UWA Medical School, The University of Western Australia, Perth, WA, 6009, Australia
- Australian Research Council Centre for Personalised Therapeutics Technologies, University of Melbourne, Melbourne, Victoria, 3010, Australia
| | - Sebastian E Amos
- School of Human Sciences, The University of Western Australia, Perth, WA, 6009, Australia
| | - Kai Chen
- School of Molecular Sciences, The University of Western Australia, Perth, WA, 6009, Australia
- ARC Training Centre for Next-Gen Technologies in Biomedical Analysis, School of Molecular Sciences, The University of Western Australia, Perth, WA, 6009, Australia
- Department of Chemistry, The University of Hong Kong, Hong Kong, China
| | - Yin Yao
- Electron Microscope Unit, Mark Wainwright Analytical Centre, University of New South Wales, Sydney, NSW, 2052, Australia
| | - Haibo Jiang
- School of Molecular Sciences, The University of Western Australia, Perth, WA, 6009, Australia
- ARC Training Centre for Next-Gen Technologies in Biomedical Analysis, School of Molecular Sciences, The University of Western Australia, Perth, WA, 6009, Australia
- Department of Chemistry, The University of Hong Kong, Hong Kong, China
| | - Yu Suk Choi
- ARC Training Centre for Next-Gen Technologies in Biomedical Analysis, School of Molecular Sciences, The University of Western Australia, Perth, WA, 6009, Australia
- School of Human Sciences, The University of Western Australia, Perth, WA, 6009, Australia
| | - Minghao Zheng
- Perron Institute for Neurological and Translational Science, Perth, WA, 6009, Australia
- Centre for Orthopaedic Research, The UWA Medical School, The University of Western Australia, Perth, WA, 6009, Australia
| | - Dino Spagnoli
- School of Molecular Sciences, The University of Western Australia, Perth, WA, 6009, Australia
| | | | - Per B Zetterlund
- Cluster for Advanced Macromolecular Design (CAMD), School of Chemical Engineering, University of New South Wales, Sydney, NSW, 2052, Australia
| | - Vincent P Wallace
- School of Physics, Mathematics and Computing, The University of Western Australia, Perth, WA, 6009, Australia
| | - Alan R Harvey
- Perron Institute for Neurological and Translational Science, Perth, WA, 6009, Australia
- School of Human Sciences, The University of Western Australia, Perth, WA, 6009, Australia
| | - Stuart I Hodgetts
- Perron Institute for Neurological and Translational Science, Perth, WA, 6009, Australia
- School of Human Sciences, The University of Western Australia, Perth, WA, 6009, Australia
| | - K Swaminathan Iyer
- School of Molecular Sciences, The University of Western Australia, Perth, WA, 6009, Australia
- ARC Training Centre for Next-Gen Technologies in Biomedical Analysis, School of Molecular Sciences, The University of Western Australia, Perth, WA, 6009, Australia
| |
Collapse
|
2
|
Bilginer Kartal R, Arslan Yildiz A. Exploring Neuronal Differentiation Profiles in SH-SY5Y Cells through Magnetic Levitation Analysis. ACS OMEGA 2024; 9:14955-14962. [PMID: 38585102 PMCID: PMC10993277 DOI: 10.1021/acsomega.3c08962] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/10/2023] [Revised: 03/01/2024] [Accepted: 03/08/2024] [Indexed: 04/09/2024]
Abstract
Magnetic levitation (MagLev) is a powerful and versatile technique that can sort objects based on their density differences. This paper reports the sorting of SH-SY5Y cells for neuronal differentiation by the MagLev technique. Herein, SH-SY5Y cells were differentiated with retinoic acid (RA) and brain-derived neurotrophic factor (BDNF). Neuronal differentiation was confirmed by neurite extension measurement and the immunostaining assay. Neurites reached the maximum length on day 9 after sequential treatment with RA-BDNF. Neuronal marker expression of un-/differentiated cells was investigated by β-III tubulin and neuronal nuclei (NeuN) and differentiated cells exhibited a higher fluorescence intensity compared to un-/differentiated cells. MagLev results revealed that the density of differentiated SH-SY5Y cells gradually increased from 1.04 to 1.06 g/mL, while it remained stable at 1.05 g/mL for un-/differentiated cells. These findings signified that cell density would be a potent indicator of neuronal differentiation. Overall, it was shown that MagLev methodology can provide rapid, label-free, and easy sorting to analyze the differentiation of cells at a single-cell level.
Collapse
Affiliation(s)
| | - Ahu Arslan Yildiz
- Department of Bioengineering, Izmir Institute of Technology (IZTECH), 35430 Izmir, Turkey
| |
Collapse
|
3
|
Matrella ML, Valletti A, Gigante I, De Rasmo D, Signorile A, Russo S, Lobasso S, Lobraico D, Dibattista M, Pacelli C, Cocco T. High OXPHOS efficiency in RA-FUdr-differentiated SH-SY5Y cells: involvement of cAMP signalling and respiratory supercomplexes. Sci Rep 2024; 14:7411. [PMID: 38548913 PMCID: PMC10978939 DOI: 10.1038/s41598-024-57613-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Accepted: 03/20/2024] [Indexed: 04/01/2024] Open
Abstract
Neurons are highly dependent on mitochondria to meet their bioenergetic needs and understanding the metabolic changes during the differentiation process is crucial in the neurodegeneration context. Several in vitro approaches have been developed to study neuronal differentiation and bioenergetic changes. The human SH-SY5Y cell line is a widely used cellular model and several differentiation protocols have been developed to induce a neuron-like phenotype including retinoic acid (RA) treatment. In this work we obtained a homogeneous functional population of neuron-like cells by a two-step differentiation protocol in which SH-SY5Y cells were treated with RA plus the mitotic inhibitor 2-deoxy-5-fluorouridine (FUdr). RA-FUdr treatment induced a neuronal phenotype characterized by increased expression of neuronal markers and electrical properties specific to excitable cells. In addition, the RA-FUdr differentiated cells showed an enrichment of long chain and unsaturated fatty acids (FA) in the acyl chain composition of cardiolipin (CL) and the bioenergetic analysis evidences a high coupled and maximal respiration associated with high mitochondrial ATP levels. Our results suggest that the observed high oxidative phosphorylation (OXPHOS) capacity may be related to the activation of the cyclic adenosine monophosphate (cAMP) pathway and the assembly of respiratory supercomplexes (SCs), highlighting the change in mitochondrial phenotype during neuronal differentiation.
Collapse
Affiliation(s)
- Maria Laura Matrella
- Department of Translational Biomedicine and Neuroscience, University of Bari Aldo Moro, 70124, Bari, Italy
| | - Alessio Valletti
- Department of Translational Biomedicine and Neuroscience, University of Bari Aldo Moro, 70124, Bari, Italy
- MASMEC Biomed S.p.A, 70026, Modugno, Italy
| | - Isabella Gigante
- National Institute of Gastroenterology- IRCCS "Saverio De Bellis", Via Turi 27, Castellana Grotte, 70013, Bari, Italy
| | - Domenico De Rasmo
- Bioenergetics and Molecular Biotechnologies, CNR-Institute of Biomembranes, 70124, Bari, Italy
| | - Anna Signorile
- Department of Translational Biomedicine and Neuroscience, University of Bari Aldo Moro, 70124, Bari, Italy
| | - Silvia Russo
- Department of Translational Biomedicine and Neuroscience, University of Bari Aldo Moro, 70124, Bari, Italy
| | - Simona Lobasso
- Department of Translational Biomedicine and Neuroscience, University of Bari Aldo Moro, 70124, Bari, Italy
| | - Donatella Lobraico
- Department of Translational Biomedicine and Neuroscience, University of Bari Aldo Moro, 70124, Bari, Italy
| | - Michele Dibattista
- Department of Translational Biomedicine and Neuroscience, University of Bari Aldo Moro, 70124, Bari, Italy
| | - Consiglia Pacelli
- Department of Clinical and Experimental Medicine, University of Foggia, 71122, Foggia, Italy.
| | - Tiziana Cocco
- Department of Translational Biomedicine and Neuroscience, University of Bari Aldo Moro, 70124, Bari, Italy.
| |
Collapse
|
4
|
Kuntz S, Kunz C, Borsch C, Hill D, Morrin S, Buck R, Rudloff S. Influence of microbially fermented 2´-fucosyllactose on neuronal-like cell activity in an in vitro co-culture system. Front Nutr 2024; 11:1351433. [PMID: 38389793 PMCID: PMC10881714 DOI: 10.3389/fnut.2024.1351433] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2023] [Accepted: 01/18/2024] [Indexed: 02/24/2024] Open
Abstract
Scope 2´-Fucosyllactose (2´-FL), the most abundant oligosaccharide in human milk, plays an important role in numerous biological functions, including improved learning. It is not clear, however, whether 2´-FL or a cleavage product could influence neuronal cell activity. Thus, we investigated the effects of 2´-FL, its monosaccharide fucose (Fuc), and microbial fermented 2´-FL and Fuc on the parameters of neuronal cell activity in an intestinal-neuronal transwell co-culture system in vitro. Methods Native 13C-labeled 2´-FL and 13C-Fuc or their metabolites, fermented with Bifidobacterium (B.) longum ssp. infantis and B. breve, which were taken from the lag-, log- and stationary (stat-) growth phases of batch cultures, were applied to the apical compartment of the co-culture system with Caco-2 cells representing the intestinal layer and all-trans-retinoic acid-differentiated SH-SY5Y (SH-SY5YATRA) cells mimicking neuronal-like cells. After 3 h of incubation, the culture medium in the basal compartment was monitored for 13C enrichment by using elemental analysis isotope-ratio mass spectrometry (EA-IRMS) and effects on cell viability, plasma, and mitochondrial membrane potential. The neurotransmitter activation (BDNF, GABA, choline, and glutamate) of SH-SY5YATRA cells was also determined. Furthermore, these effects were also measured by the direct application of 13C-2´-FL and 13C-Fuc to SH-SY5YATRA cells. Results While no effects on neuronal-like cell activities were observed after intact 2´-FL or Fuc was incubated with SH-SY5YATRA cells, supernatants from the stat-growth phase of 2´-FL, fermented by B. longum ssp. infantis alone and together with B. breve, significantly induced BDNF release from SH-SY5YATRA cells. No such effects were found for 2´-FL, Fuc, or their fermentation products from B. breve. The BDNF release occurred from an enhanced vesicular release, which was confirmed by the use of the Ca2+-channel blocker verapamil. Concomitant with this event, 13C enrichment was also observed in the basal compartment when supernatants from the stat-growth phase of fermentation by B. longum ssp. infantis alone or together with B. breve were used. Conclusion The results obtained in this study suggest that microbial products of 2´-FL rather than the oligosaccharide itself may influence neuronal cell activities.
Collapse
Affiliation(s)
- Sabine Kuntz
- Department of Nutritional Science, Justus Liebig University Giessen, Giessen, Germany
| | - Clemens Kunz
- Department of Nutritional Science, Justus Liebig University Giessen, Giessen, Germany
| | - Christian Borsch
- Department of Nutritional Science, Justus Liebig University Giessen, Giessen, Germany
| | - David Hill
- Abbott, Nutrition Division, Columbus, OH, United States
| | - Sinéad Morrin
- Abbott, Nutrition Division, Columbus, OH, United States
| | - Rachael Buck
- Abbott, Nutrition Division, Columbus, OH, United States
| | - Silvia Rudloff
- Department of Nutritional Science, Justus Liebig University Giessen, Giessen, Germany
- Department of Pediatrics, Justus Liebig University Giessen, Giessen, Germany
| |
Collapse
|
5
|
Dos Santos MG, Gomes JR, Costa MDM. Methods used to achieve different levels of the neuronal differentiation process in SH-SY5Y and Neuro2a cell lines: An integrative review. Cell Biol Int 2023; 47:1883-1894. [PMID: 37817323 DOI: 10.1002/cbin.12093] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2023] [Revised: 08/16/2023] [Accepted: 09/20/2023] [Indexed: 10/12/2023]
Abstract
To study the process of neuronal differentiation, the human neuroblastoma (SH-SY5Y) and the murine neuroblastoma (Neuro2a) cell lines have proven to be effective models. For this approach, different protocols involving known neurotrophic factors and other molecules, such as retinoic acid (RA), have been assessed to better understand the neuronal differentiation process. Thus, the goal of this manuscript was to provide a brief overview of recent studies that have used protocols to promote neurodifferentiation in SH-SY5Y and Neuro2a cell lines and used acquired morphology and neuronal markers to validate whether differentiation was effective. The published results supply some guidance regarding the relationship between RA and neurotrophins for SH-SY5Y, as well a serum concentrations for both cell lines. Furthermore, they demonstrate the potential application of Neuro2a, which is critical for future research on neuronal differentiation.
Collapse
Affiliation(s)
- Mônica G Dos Santos
- Biomedical Science Postgraduate Program, State University of Ponta Grossa, Ponta Grossa, Paraná, Brazil
| | - José R Gomes
- Biomedical Science Postgraduate Program, State University of Ponta Grossa, Ponta Grossa, Paraná, Brazil
| | - Michele D M Costa
- Biomedical Science Postgraduate Program, State University of Ponta Grossa, Ponta Grossa, Paraná, Brazil
| |
Collapse
|
6
|
Ataei A, Tahsili M, Hayadokht G, Daneshvar M, Mohammadi Nour S, Soofi A, Masoudi A, Kabiri M, Natami M. Targeting long noncoding RNAs in neuroblastoma: Progress and prospects. Chem Biol Drug Des 2023; 102:640-652. [PMID: 37291742 DOI: 10.1111/cbdd.14263] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2023] [Revised: 04/10/2023] [Accepted: 04/18/2023] [Indexed: 06/10/2023]
Abstract
Neuroblastoma (NB) is the third most prevalent tumor that mostly influences infants and young children. Although different treatments have been developed for the treatment of NB, high-risk patients have been reported to have low survival rates. Currently, long noncoding RNAs (lncRNAs) have shown an attractive potential in cancer research and a party of investigations have been performed to understand mechanisms underlying tumor development through lncRNA dysregulation. Researchers have just newly initiated to exhibit the involvement of lncRNAs in NB pathogenesis. In this review article, we tried to clarify the point we stand with respect to the involvement of lncRNAs in NB. Moreover, implications for the pathologic roles of lncRNAs in the development of NB have been discussed. It seems that some of these lncRNAs have promising potential to be applied as biomarkers for NB prognosis and treatment.
Collapse
Affiliation(s)
- Ali Ataei
- School of Medicine, Bam University of Medical Sciences, Bam, Iran
| | | | - Golsa Hayadokht
- School of Medicine, Guilan University of Medical Sciences, Rasht, Iran
| | | | | | - Asma Soofi
- Department of Physical Chemistry, School of Chemistry, College of Sciences, University of Tehran, Tehran, Iran
| | - Alireza Masoudi
- Department of Laboratory Sciences, Faculty of Alied Medical Sciences, Qom University of Medical Sciences, Qom, Iran
| | - Maryam Kabiri
- Faculty of Medicine, Islamic Azad University of Medical Sciences, Tehran, Iran
| | - Mohammad Natami
- Department of Urology, Faculty of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| |
Collapse
|
7
|
Ballesio A, Zagaria A, Curti DG, Moran R, Goadsby PJ, Rosenzweig I, Lombardo C. Peripheral brain-derived neurotrophic factor (BDNF) in insomnia: A systematic review and meta-analysis. Sleep Med Rev 2023; 67:101738. [PMID: 36577338 DOI: 10.1016/j.smrv.2022.101738] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Revised: 12/12/2022] [Accepted: 12/14/2022] [Indexed: 12/23/2022]
Abstract
The brain-derived neurotrophic factor (BDNF) is associated with emotional and cognitive functioning, and it is considered a transdiagnostic biomarker for mental disorders. Literature on insomnia related BDNF changes yielded contrasting results and it has never been synthetized using meta-analysis. To fill this gap, we conducted a systematic review and meta-analysis of case-control studies examining the levels of peripheric BDNF in individuals with insomnia and healthy controls using the PRISMA guidelines. PubMed, Scopus, Medline, PsycINFO and CINAHL were searched up to Nov 2022. Nine studies met the inclusion criteria and were assessed using the Newcastle-Ottawa Scale. Eight studies reported sufficient data for meta-analysis. Random-effects models showed lower BDNF in subjects with insomnia (n = 446) than in controls (n = 706) (Hedge's g = -0.86, 95% CI: -1.39 to -0.32, p = .002). Leave-one-out sensitivity analysis confirmed that the pooled effect size was robust and not driven by any single study. However, given the small sample size, the cross-sectional nature of the measurement, and the high heterogeneity of included data, the results should be cautiously interpreted. Progress in the study of BDNF in insomnia is clinically relevant to better understand the mechanisms that may explain the relationship between disturbed sleep and mental disorders.
Collapse
Affiliation(s)
- Andrea Ballesio
- Department of Psychology, Sapienza University of Rome, Italy.
| | - Andrea Zagaria
- Department of Psychology, Sapienza University of Rome, Italy
| | | | - Rosalyn Moran
- Department of Neuroimaging, Institute of Psychiatry, Psychology and Neuroscience (IoPPN), King's College London, UK
| | - Peter J Goadsby
- NIHR-Wellcome Trust King's Clinical Research Facility, King's College London UK
| | - Ivana Rosenzweig
- Sleep and Brain Plasticity Centre, Department of Neuroimaging, Institute of Psychiatry, Psychology and Neuroscience (IoPPN), King's College London, London, UK; Sleep Disorders Centre, Guy's and St Thomas' National Health Service Foundation Trust, London, UK
| | | |
Collapse
|
8
|
Al-Maswary AA, O’Reilly M, Holmes AP, Walmsley AD, Cooper PR, Scheven BA. Exploring the neurogenic differentiation of human dental pulp stem cells. PLoS One 2022; 17:e0277134. [PMID: 36331951 PMCID: PMC9635714 DOI: 10.1371/journal.pone.0277134] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Accepted: 10/20/2022] [Indexed: 11/06/2022] Open
Abstract
Human dental pulp stem cells (hDPSCs) have increasingly gained interest as a potential therapy for nerve regeneration in medicine and dentistry, however their neurogenic potential remains a matter of debate. This study aimed to characterize hDPSC neuronal differentiation in comparison with the human SH-SY5Y neuronal stem cell differentiation model. Both hDPSCs and SH-SY5Y could be differentiated to generate typical neuronal-like cells following sequential treatment with all-trans retinoic acid (ATRA) and brain-derived neurotrophic factor (BDNF), as evidenced by significant expression of neuronal proteins βIII-tubulin (TUBB3) and neurofilament medium (NF-M). Both cell types also expressed multiple neural gene markers including growth-associated protein 43 (GAP43), enolase 2/neuron-specific enolase (ENO2/NSE), synapsin I (SYN1), nestin (NES), and peripherin (PRPH), and exhibited measurable voltage-activated Na+ and K+ currents. In hDPSCs, upregulation of acetylcholinesterase (ACHE), choline O-acetyltransferase (CHAT), sodium channel alpha subunit 9 (SCN9A), POU class 4 homeobox 1 (POU4F1/BRN3A) along with a downregulation of motor neuron and pancreas homeobox 1 (MNX1) indicated that differentiation was more guided toward a cholinergic sensory neuronal lineage. Furthermore, the Extracellular signal-regulated kinase 1/2 (ERK1/2) inhibitor U0126 significantly impaired hDPSC neuronal differentiation and was associated with reduction of the ERK1/2 phosphorylation. In conclusion, this study demonstrates that extracellular signal-regulated kinase/Mitogen-activated protein kinase (ERK/MAPK) is necessary for sensory cholinergic neuronal differentiation of hDPSCs. hDPSC-derived cholinergic sensory neuronal-like cells represent a novel model and potential source for neuronal regeneration therapies.
Collapse
Affiliation(s)
- Arwa A. Al-Maswary
- School of Dentistry, Institute of Clinical Sciences, College of Medical and Dental Sciences, University of Birmingham, Birmingham, United Kingdom
- * E-mail: , (AAA-M); (BAS)
| | - Molly O’Reilly
- Institute of Cardiovascular Sciences, College of Medical and Dental Sciences, University of Birmingham, Birmingham, United Kingdom
| | - Andrew P. Holmes
- Institute of Cardiovascular Sciences, College of Medical and Dental Sciences, University of Birmingham, Birmingham, United Kingdom
| | - A. Damien Walmsley
- School of Dentistry, Institute of Clinical Sciences, College of Medical and Dental Sciences, University of Birmingham, Birmingham, United Kingdom
| | - Paul R. Cooper
- School of Dentistry, Institute of Clinical Sciences, College of Medical and Dental Sciences, University of Birmingham, Birmingham, United Kingdom
- Faculty of Dentistry, Sir John Walsh Research Institute, University of Otago, Dunedin, New Zealand
| | - Ben A. Scheven
- School of Dentistry, Institute of Clinical Sciences, College of Medical and Dental Sciences, University of Birmingham, Birmingham, United Kingdom
- * E-mail: , (AAA-M); (BAS)
| |
Collapse
|
9
|
Mattern L, Otten K, Miskey C, Fuest M, Izsvák Z, Ivics Z, Walter P, Thumann G, Johnen S. Molecular and Functional Characterization of BDNF-Overexpressing Human Retinal Pigment Epithelial Cells Established by Sleeping Beauty Transposon-Mediated Gene Transfer. Int J Mol Sci 2022; 23:12982. [PMID: 36361771 PMCID: PMC9656812 DOI: 10.3390/ijms232112982] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2022] [Revised: 09/30/2022] [Accepted: 10/25/2022] [Indexed: 04/12/2024] Open
Abstract
More and more patients suffer from multifactorial neurodegenerative diseases, such as age-related macular degeneration (AMD). However, their pathological mechanisms are still poorly understood, which complicates the development of effective therapies. To improve treatment of multifactorial diseases, cell-based gene therapy can be used to increase the expression of therapeutic factors. To date, there is no approved therapy for dry AMD, including late-stage geographic atrophy. We present a treatment option for dry AMD that transfers the brain-derived neurotrophic factor (BDNF) gene into retinal pigment epithelial (RPE) cells by electroporation using the plasmid-based Sleeping Beauty (SB) transposon system. ARPE-19 cells and primary human RPE cells were co-transfected with two plasmids encoding the SB100X transposase and the transposon carrying a BDNF transcription cassette. We demonstrated efficient expression and secretion of BDNF in both RPE cell types, which were further increased in ARPE-19 cell cultures exposed to hydrogen peroxide. BDNF-transfected cells exhibited lower apoptosis rates and stimulated neurite outgrowth in human SH-SY5Y cells. This study is an important step in the development of a cell-based BDNF gene therapy that could be applied as an advanced therapy medicinal product to treat dry AMD or other degenerative retinal diseases.
Collapse
Affiliation(s)
- Larissa Mattern
- Department of Ophthalmology, University Hospital RWTH Aachen, 52074 Aachen, Germany
| | - Katrin Otten
- Department of Ophthalmology, University Hospital RWTH Aachen, 52074 Aachen, Germany
| | - Csaba Miskey
- Division of Medical Biotechnology, Paul-Ehrlich-Institute, 63225 Langen, Germany
| | - Matthias Fuest
- Department of Ophthalmology, University Hospital RWTH Aachen, 52074 Aachen, Germany
| | - Zsuzsanna Izsvák
- Max Delbrück Center for Molecular Medicine in the Helmholtz Association, 13125 Berlin, Germany
| | - Zoltán Ivics
- Division of Medical Biotechnology, Paul-Ehrlich-Institute, 63225 Langen, Germany
| | - Peter Walter
- Department of Ophthalmology, University Hospital RWTH Aachen, 52074 Aachen, Germany
| | - Gabriele Thumann
- Department of Ophthalmology, University Hospitals of Geneva, 1205 Geneva, Switzerland
- Experimental Ophthalmology, University of Geneva, 1205 Geneva, Switzerland
| | - Sandra Johnen
- Department of Ophthalmology, University Hospital RWTH Aachen, 52074 Aachen, Germany
| |
Collapse
|
10
|
Waggoner LE, Kang J, Zuidema JM, Vijayakumar S, Hurtado AA, Sailor MJ, Kwon EJ. Porous Silicon Nanoparticles Targeted to the Extracellular Matrix for Therapeutic Protein Delivery in Traumatic Brain Injury. Bioconjug Chem 2022; 33:1685-1697. [PMID: 36017941 PMCID: PMC9492643 DOI: 10.1021/acs.bioconjchem.2c00305] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Traumatic brain injury (TBI) is a major cause of disability and death among children and young adults in the United States, yet there are currently no treatments that improve the long-term brain health of patients. One promising therapeutic for TBI is brain-derived neurotrophic factor (BDNF), a protein that promotes neurogenesis and neuron survival. However, outstanding challenges to the systemic delivery of BDNF are its instability in blood, poor transport into the brain, and short half-life in circulation and brain tissue. Here, BDNF is encapsulated into an engineered, biodegradable porous silicon nanoparticle (pSiNP) in order to deliver bioactive BDNF to injured brain tissue after TBI. The pSiNP carrier is modified with the targeting ligand CAQK, a peptide that binds to extracellular matrix components upregulated after TBI. The protein cargo retains bioactivity after release from the pSiNP carrier, and systemic administration of the CAQK-modified pSiNPs results in effective delivery of the protein cargo to injured brain regions in a mouse model of TBI. When administered after injury, the CAQK-targeted pSiNP delivery system for BDNF reduces lesion volumes compared to free BDNF, supporting the hypothesis that pSiNPs mediate therapeutic protein delivery after systemic administration to improve outcomes in TBI.
Collapse
Affiliation(s)
- Lauren E. Waggoner
- Department of Nanoengineering, University of California, San Diego, La Jolla, CA, 92093, USA
| | - Jinyoung Kang
- Department of Nanoengineering, University of California, San Diego, La Jolla, CA, 92093, USA
| | - Jonathan M. Zuidema
- Department of Chemistry & Biochemistry, University of California, San Diego, La Jolla, CA, 92093, USA
- Department of Neuroscience, University of California, San Diego, La Jolla, CA, 92093, USA
| | - Sanahan Vijayakumar
- Department of Chemistry & Biochemistry, University of California, San Diego, La Jolla, CA, 92093, USA
| | - Alan A. Hurtado
- Department of Bioengineering, University of California, San Diego, La Jolla, CA, 92093, USA
| | - Michael J. Sailor
- Department of Nanoengineering, University of California, San Diego, La Jolla, CA, 92093, USA
- Department of Chemistry & Biochemistry, University of California, San Diego, La Jolla, CA, 92093, USA
- Department of Bioengineering, University of California, San Diego, La Jolla, CA, 92093, USA
| | - Ester J. Kwon
- Department of Bioengineering, University of California, San Diego, La Jolla, CA, 92093, USA
| |
Collapse
|
11
|
4'-Iodo-α-Pyrrolidinononanophenone Provokes Differentiated SH-SY5Y Cell Apoptosis Through Downregulating Nitric Oxide Production and Bcl-2 Expression. Neurotox Res 2022; 40:1322-1336. [PMID: 35834058 DOI: 10.1007/s12640-022-00546-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Revised: 07/04/2022] [Accepted: 07/06/2022] [Indexed: 10/17/2022]
Abstract
Abuse of pyrrolidinophenone derivatives (PPs) is known to cause severe damage to the central nervous system due to their high lipophilicity. In this study, we compared sensitivity to toxicity elicited by 4'-iodo-α-pyrrolidinononanophenone (I-α-PNP), one of the most potent cytotoxic derivatives among PPs synthesized previously, between SH-SY5Y cells differentiated by all-trans-retinoic acid (ATRA) and the undifferentiated cells, and found that the differentiated cells are more sensitive to I-α-PNP toxicity than the undifferentiated cells. Treatment with I-α-PNP elicited some apoptotic alterations (Bax expression, loss of mitrochondrial membrane potential, and activation of caspases) in the differentiated cells, whose patterns were similar to those in the undifferentiated cells. I-α-PNP treatment resulted in no significant alteration in Bcl-2 expression in the undifferentiated cells, whereas it considerably downregulated the protein expression in the differentiated cells, suggesting that the high I-α-PNP sensitivity of the differentiated cells is mainly due to downregulation of Bcl-2 expression. I-α-PNP treatment decreased nitric oxide (NO) production and neuronal NOS (nNOS) expression in the differentiated cells, and the patterns of I-α-PNP-evoked alterations in phosphorylation of cAMP response element-binding protein (CREB) and brain-derived neurotrophic factor (BDNF) expression were almost the same as that in nNOS expression. Additionally, the addition of an NO donor restored the I-α-PNP-evoked alterations in expressions of Bcl-2, BDNF, and nNOS in the differentiated cells. These findings suggest that the downregulation of Bcl-2 expression by I-α-PNP in differentiated cells is attributed to the acceleration of two negative feedback loops (nNOS/NO/CREB loop and CREB/BDNF loop) triggered by decreased NO production.
Collapse
|
12
|
do Amaral L, Caldas GR, Dos Santos NAG, Parreira RLT, Bastos JK, Dos Santos AC. Baccharin from Brazilian green propolis induces neurotrophic signaling pathways in PC12 cells: potential for axonal and synaptic regeneration. NAUNYN-SCHMIEDEBERG'S ARCHIVES OF PHARMACOLOGY 2022; 395:659-672. [PMID: 35246694 DOI: 10.1007/s00210-022-02224-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Accepted: 02/24/2022] [Indexed: 11/30/2022]
Abstract
Neurodegenerative diseases are characterized by progressive loss of the structure and function of specific neuronal populations, and have been associated with reduced neurotrophic support. Neurotrophins, like NGF (nerve growth factor), are endogenous proteins that induce neuritogenesis and modulate axonal growth, branching, and synapsis; however, their therapeutic application is limited mainly by low stability, short half-life, and inability to cross the blood-brain barrier (BBB). Small neurotrophic molecules that have suitable pharmacokinetics and are able to cross the BBB are potential candidates for neuroprotection. Baccharin is a bioactive small molecule isolated from Brazilian green propolis. In the present study, we investigated the neurotrophic and neuroprotective potential of baccharin in the PC12 cell neuronal model. We used pharmacological inhibitors (K252a, LY294002, and U0126), and ELISA (phospho-trkA, phospho-Akt, and phospho-MEK) to investigate the involvement of trkA receptor, PI3k/Akt pathway, and MAPK/Erk pathway, respectively. Additionally, we evaluated the expression of axonal (GAP-43) and synaptic (synapsin I) proteins by western blot. The results showed that baccharin induces neuritogenesis in NGF-deprived PC12 cells, through activation of trkA receptor and the downstream signaling cascades (PI3K/Akt and MAPK/ERK), which is the same neurotrophic pathway activated by NGF in PC12 cells and neurons. Baccharin also induced the expression of GAP-43 and synapsin I, which mediate axonal and synaptic plasticity, respectively. Additionally, in silico predictions of baccharin showed favorable physicochemical properties, pharmacokinetics, drug-likeness, and medicinal chemistry friendliness. Altogether, these findings suggest that baccharin is a promising neurotrophic agent whose therapeutic application in neurodegeneration should be further investigated.
Collapse
Affiliation(s)
- Lilian do Amaral
- Faculdade de Ciências Farmacêuticas de Ribeirão Preto - USP, Universidade de São Paulo, Ribeirão Preto, SP, Brazil
| | - Gabriel Rocha Caldas
- Faculdade de Ciências Farmacêuticas de Ribeirão Preto - USP, Universidade de São Paulo, Ribeirão Preto, SP, Brazil
| | | | | | - Jairo Kennup Bastos
- Faculdade de Ciências Farmacêuticas de Ribeirão Preto - USP, Universidade de São Paulo, Ribeirão Preto, SP, Brazil
| | - Antonio Cardozo Dos Santos
- Departamento de Análises Clínicas, Toxicológicas E Bromatológicas, Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Universidade de São Paulo, USP, Avenida do Café s/n, Ribeirão Preto, SP, 14040-903, Brazil.
| |
Collapse
|
13
|
Houlton J, Zubkova OV, Clarkson AN. Recovery of Post-Stroke Spatial Memory and Thalamocortical Connectivity Following Novel Glycomimetic and rhBDNF Treatment. Int J Mol Sci 2022; 23:ijms23094817. [PMID: 35563207 PMCID: PMC9101131 DOI: 10.3390/ijms23094817] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2022] [Revised: 04/22/2022] [Accepted: 04/25/2022] [Indexed: 12/10/2022] Open
Abstract
Stroke-induced cognitive impairments remain of significant concern, with very few treatment options available. The involvement of glycosaminoglycans in neuroregenerative processes is becoming better understood and recent advancements in technology have allowed for cost-effective synthesis of novel glycomimetics. The current study evaluated the therapeutic potential of two novel glycomimetics, compound A and G, when administered systemically five-days post-photothrombotic stroke to the PFC. As glycosaminoglycans are thought to facilitate growth factor function, we also investigated the combination of our glycomimetics with intracerebral, recombinant human brain-derived neurotrophic factor (rhBDNF). C56BL/6J mice received sham or stroke surgery and experimental treatment (day-5), before undergoing the object location recognition task (OLRT). Four-weeks post-surgery, animals received prelimbic injections of the retrograde tracer cholera toxin B (CTB), before tissue was collected for quantification of thalamo-PFC connectivity and reactive astrogliosis. Compound A or G treatment alone modulated a degree of reactive astrogliosis yet did not influence spatial memory performance. Contrastingly, compound G+rhBDNF treatment significantly improved spatial memory, dampened reactive astrogliosis and limited stroke-induced loss of connectivity between the PFC and midline thalamus. As rhBDNF treatment had negligible effects, these findings support compound A acted synergistically to enhance rhBDNF to restrict secondary degeneration and facilitate functional recovery after PFC stroke.
Collapse
Affiliation(s)
- Josh Houlton
- Department of Anatomy, Brain Health Research Centre and Brain Research New Zealand, University of Otago, Dunedin 9054, New Zealand;
| | - Olga V. Zubkova
- The Ferrier Research Institute, Gracefield Research Centre, Victoria University of Wellington, 69 Gracefield Road, Lower Hutt 5040, New Zealand;
| | - Andrew N. Clarkson
- Department of Anatomy, Brain Health Research Centre and Brain Research New Zealand, University of Otago, Dunedin 9054, New Zealand;
- Correspondence: ; Tel./Fax: +64-3-279-7326
| |
Collapse
|
14
|
Gao AX, Xiao J, Xia TCX, Dong TTX, Tsim KWK. The extract of peanut shell enhances neurite outgrowth of neuronal cells: Recycling of agricultural waste for development of nutraceutical products. J Funct Foods 2022. [DOI: 10.1016/j.jff.2022.105023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
|
15
|
Lin PH, Kuo LT, Luh HT. The Roles of Neurotrophins in Traumatic Brain Injury. LIFE (BASEL, SWITZERLAND) 2021; 12:life12010026. [PMID: 35054419 PMCID: PMC8780368 DOI: 10.3390/life12010026] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Revised: 12/18/2021] [Accepted: 12/21/2021] [Indexed: 02/08/2023]
Abstract
Neurotrophins are a collection of structurally and functionally related proteins. They play important roles in many aspects of neural development, survival, and plasticity. Traumatic brain injury (TBI) leads to different levels of central nervous tissue destruction and cellular repair through various compensatory mechanisms promoted by the injured brain. Many studies have shown that neurotrophins are key modulators of neuroinflammation, apoptosis, blood–brain barrier permeability, memory capacity, and neurite regeneration. The expression of neurotrophins following TBI is affected by the severity of injury, genetic polymorphism, and different post-traumatic time points. Emerging research is focused on the potential therapeutic applications of neurotrophins in managing TBI. We conducted a comprehensive review by organizing the studies that demonstrate the role of neurotrophins in the management of TBI.
Collapse
Affiliation(s)
- Ping-Hung Lin
- Department of Medical Education, School of Medicine, National Taiwan University, Taipei 100, Taiwan;
| | - Lu-Ting Kuo
- Division of Neurosurgery, Department of Surgery, National Taiwan University Hospital, Taipei 100, Taiwan;
| | - Hui-Tzung Luh
- Department of Neurosurgery, Shuang Ho Hospital, Taipei Medical University, New Taipei City 235, Taiwan
- Taipei Neuroscience Institute, Taipei Medical University, New Taipei City 235, Taiwan
- Graduate Institute of Clinical Medicine, National Taiwan University, Taipei 100, Taiwan
- Correspondence: ; Tel.: +886-956279587
| |
Collapse
|
16
|
Liu B, Zhang Y, Yang Z, Liu M, Zhang C, Zhao Y, Song C. ω-3 DPA Protected Neurons from Neuroinflammation by Balancing Microglia M1/M2 Polarizations through Inhibiting NF-κB/MAPK p38 Signaling and Activating Neuron-BDNF-PI3K/AKT Pathways. Mar Drugs 2021; 19:md19110587. [PMID: 34822458 PMCID: PMC8619469 DOI: 10.3390/md19110587] [Citation(s) in RCA: 46] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Revised: 10/12/2021] [Accepted: 10/13/2021] [Indexed: 02/04/2023] Open
Abstract
Microglia M1 phenotype causes HPA axis hyperactivity, neurotransmitter dysfunction, and production of proinflammatory mediators and oxidants, which may contribute to the etiology of depression and neurodegenerative diseases. Eicosapentaenoic acid (EPA) may counteract neuroinflammation by increasing n-3 docosapentaenoic acid (DPA). However, the cellular and molecular mechanisms of DPA, as well as whether it can exert antineuroinflammatory and neuroprotective effects, are unknown. The present study first evaluated DPA’s antineuroinflammatory effects in lipopolysaccharide (LPS)-activated BV2 microglia. The results showed that 50 μM DPA significantly decreased BV2 cell viability after 100 ng/mL LPS stimulation, which was associated with significant downregulation of microglia M1 phenotype markers and proinflammatory cytokines but upregulation of M2 markers and anti-inflammatory cytokine. Then, DPA inhibited the activation of mitogen-activated protein kinase (MAPK) p38 and nuclear factor-κB (NF-κB) p65 pathways, which results were similar to the effects of NF-κB inhibitor, a positive control. Second, BV2 cell supernatant was cultured with differentiated SH-SY5Y neurons. The results showed that the supernatant from LPS-activated BV2 cells significantly decreased SH-SY5Y cell viability and brain-derived neurotrophic factor (BDNF), TrkB, p-AKT, and PI3K expression, which were significantly reversed by DPA pretreatment. Furthermore, DPA neuroprotection was abrogated by BDNF-SiRNA. Therefore, n-3 DPA may protect neurons from neuroinflammation-induced damage by balancing microglia M1 and M2 polarizations, inhibiting microglia-NF-κB and MAPK p38 while activating neuron-BDNF/TrkB-PI3K/AKT pathways.
Collapse
Affiliation(s)
- Baiping Liu
- Research Institute for Marine Drugs and Nutrition, College of Food Science and Technology, Guangdong Ocean University, Zhanjiang 524088, China
- Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, College of Food Science and Technology, Guangdong Ocean University, Zhanjiang 524088, China
| | - Yongping Zhang
- Research Institute for Marine Drugs and Nutrition, College of Food Science and Technology, Guangdong Ocean University, Zhanjiang 524088, China
- Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, College of Food Science and Technology, Guangdong Ocean University, Zhanjiang 524088, China
- Marine Medical Research and Development Centre, Shenzhen Institute of Guangdong Ocean University, Shenzhen 518108, China
| | - Zhiyou Yang
- Research Institute for Marine Drugs and Nutrition, College of Food Science and Technology, Guangdong Ocean University, Zhanjiang 524088, China
- Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, College of Food Science and Technology, Guangdong Ocean University, Zhanjiang 524088, China
- Marine Medical Research and Development Centre, Shenzhen Institute of Guangdong Ocean University, Shenzhen 518108, China
| | - Meijun Liu
- Research Institute for Marine Drugs and Nutrition, College of Food Science and Technology, Guangdong Ocean University, Zhanjiang 524088, China
| | - Cai Zhang
- Research Institute for Marine Drugs and Nutrition, College of Food Science and Technology, Guangdong Ocean University, Zhanjiang 524088, China
- Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, College of Food Science and Technology, Guangdong Ocean University, Zhanjiang 524088, China
| | - Yuntao Zhao
- Research Institute for Marine Drugs and Nutrition, College of Food Science and Technology, Guangdong Ocean University, Zhanjiang 524088, China
- Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, College of Food Science and Technology, Guangdong Ocean University, Zhanjiang 524088, China
- Marine Medical Research and Development Centre, Shenzhen Institute of Guangdong Ocean University, Shenzhen 518108, China
| | - Cai Song
- Research Institute for Marine Drugs and Nutrition, College of Food Science and Technology, Guangdong Ocean University, Zhanjiang 524088, China
- Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, College of Food Science and Technology, Guangdong Ocean University, Zhanjiang 524088, China
- Marine Medical Research and Development Centre, Shenzhen Institute of Guangdong Ocean University, Shenzhen 518108, China
| |
Collapse
|
17
|
Ehinger R, Kuret A, Matt L, Frank N, Wild K, Kabagema-Bilan C, Bischof H, Malli R, Ruth P, Bausch AE, Lukowski R. Slack K + channels attenuate NMDA-induced excitotoxic brain damage and neuronal cell death. FASEB J 2021; 35:e21568. [PMID: 33817875 DOI: 10.1096/fj.202002308rr] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Revised: 03/14/2021] [Accepted: 03/17/2021] [Indexed: 12/13/2022]
Abstract
The neuronal Na+ -activated K+ channel Slack (aka Slo2.2, KNa 1.1, or Kcnt1) has been implicated in setting and maintaining the resting membrane potential and defining excitability and firing patterns, as well as in the generation of the slow afterhyperpolarization following bursts of action potentials. Slack activity increases significantly under conditions of high intracellular Na+ levels, suggesting this channel may exert important pathophysiological functions. To address these putative roles, we studied whether Slack K+ channels contribute to pathological changes and excitotoxic cell death caused by glutamatergic overstimulation of Ca2+ - and Na+ -permeable N-methyl-D-aspartic acid receptors (NMDAR). Slack-deficient (Slack KO) and wild-type (WT) mice were subjected to intrastriatal microinjections of the NMDAR agonist NMDA. NMDA-induced brain lesions were significantly increased in Slack KO vs WT mice, suggesting that the lack of Slack renders neurons particularly susceptible to excitotoxicity. Accordingly, excessive neuronal cell death was seen in Slack-deficient primary cerebellar granule cell (CGC) cultures exposed to glutamate and NMDA. Differences in neuronal survival between WT and Slack KO CGCs were largely abolished by the NMDAR antagonist MK-801, but not by NBQX, a potent and highly selective competitive antagonist of α-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid (AMPA)-type ionotropic glutamate receptors. Interestingly, NMDAR-evoked Ca2+ signals did not differ with regard to Slack genotype in CGCs. However, real-time monitoring of K+ following NMDAR activation revealed a significant contribution of this channel to the intracellular drop in K+ . Finally, TrkB and TrkC neurotrophin receptor transcript levels were elevated in NMDA-exposed Slack-proficient CGCs, suggesting a mechanism by which this K+ channel contributes to the activation of the extracellular-signal-regulated kinase (Erk) pathway and thereby to neuroprotection. Combined, our findings suggest that Slack-dependent K+ signals oppose the NMDAR-mediated excitotoxic neuronal injury by promoting pro-survival signaling via the BDNF/TrkB and Erk axis.
Collapse
Affiliation(s)
- Rebekka Ehinger
- Department of Pharmacology, Toxicology and Clinical Pharmacy, Institute of Pharmacy, University of Tübingen, Tübingen, Germany
| | - Anna Kuret
- Department of Pharmacology, Toxicology and Clinical Pharmacy, Institute of Pharmacy, University of Tübingen, Tübingen, Germany
| | - Lucas Matt
- Department of Pharmacology, Toxicology and Clinical Pharmacy, Institute of Pharmacy, University of Tübingen, Tübingen, Germany
| | - Nadine Frank
- Department of Pharmacology, Toxicology and Clinical Pharmacy, Institute of Pharmacy, University of Tübingen, Tübingen, Germany
| | - Katharina Wild
- Department of Pharmacology, Toxicology and Clinical Pharmacy, Institute of Pharmacy, University of Tübingen, Tübingen, Germany
| | - Clement Kabagema-Bilan
- Department of Pharmacology, Toxicology and Clinical Pharmacy, Institute of Pharmacy, University of Tübingen, Tübingen, Germany
| | - Helmut Bischof
- Department of Pharmacology, Toxicology and Clinical Pharmacy, Institute of Pharmacy, University of Tübingen, Tübingen, Germany
| | - Roland Malli
- Gottfried Schatz Research Center, Molecular Biology and Biochemistry, Medical University of Graz, Graz, Austria
| | - Peter Ruth
- Department of Pharmacology, Toxicology and Clinical Pharmacy, Institute of Pharmacy, University of Tübingen, Tübingen, Germany
| | - Anne E Bausch
- Department of Pharmacology, Toxicology and Clinical Pharmacy, Institute of Pharmacy, University of Tübingen, Tübingen, Germany
| | - Robert Lukowski
- Department of Pharmacology, Toxicology and Clinical Pharmacy, Institute of Pharmacy, University of Tübingen, Tübingen, Germany
| |
Collapse
|
18
|
Zainullina LF, Vakhitova YV, Lusta AY, Gudasheva TA, Seredenin SB. Dimeric mimetic of BDNF loop 4 promotes survival of serum-deprived cell through TrkB-dependent apoptosis suppression. Sci Rep 2021; 11:7781. [PMID: 33833366 PMCID: PMC8032782 DOI: 10.1038/s41598-021-87435-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2020] [Accepted: 03/30/2021] [Indexed: 01/09/2023] Open
Abstract
Brain-derived neurotrophic factor (BDNF) is involved in the regulation of neuronal cell growth, differentiation, neuroprotection and synaptic plasticity. Although aberrant BDNF/TrkB signaling is implicated in several neurological, neurodegenerative and psychiatric disorders, neurotrophin-based therapy is challenging and is limited by improper pharmacokinetic properties of BDNF. Dimeric dipeptide compound GSB-106 (bis-(N-monosuccinyl-L-seryl-L-lysine) hexamethylenediamide) has earlier been designed to mimic the TrkB-interaction 4 loop of BDNF. It displayed protective effect in various cell-damaging models in vitro. Animal studies uncovered antidepressive and neuroprotective properties upon GSB-106 per os administration. Current study shows that GSB-106 acts similarly to BDNF, promoting survival of serum-deprived neuronal-like SH-SY5Y cells. 100 nmol concentration of GSB-106 provided maximum neurotrophic effect, which corresponds to about 37% of the maximum effect provided by BDNF. Protective properties of GSB-106 arise from its ability to counteract cell apoptosis via activation of TrkB-dependent pro-survival mechanisms, including inactivation of pro-apoptotic BAD protein and suppression of caspases 9 and 3/7. Thus, our study has characterized neurotrophic activity of small dimeric compound GSB-106, which mimics certain biological functions of BDNF and neurotrophin-specific protective mechanisms. GSB-106 also displays similarities to some known low weight peptide and non-peptide TrkB ligands.
Collapse
Affiliation(s)
- L F Zainullina
- Federal State Budgetary Institution "Research Zakusov Institute of Pharmacology", 125315, Baltiyskaya str. 8, Moscow, Russia
| | - Yu V Vakhitova
- Federal State Budgetary Institution "Research Zakusov Institute of Pharmacology", 125315, Baltiyskaya str. 8, Moscow, Russia.
| | - A Yu Lusta
- Federal State Budgetary Institution "Research Zakusov Institute of Pharmacology", 125315, Baltiyskaya str. 8, Moscow, Russia
| | - T A Gudasheva
- Federal State Budgetary Institution "Research Zakusov Institute of Pharmacology", 125315, Baltiyskaya str. 8, Moscow, Russia
| | - S B Seredenin
- Federal State Budgetary Institution "Research Zakusov Institute of Pharmacology", 125315, Baltiyskaya str. 8, Moscow, Russia
| |
Collapse
|
19
|
Amaral LD, Santos NAGD, Sisti FM, Del Bel E, Santos ACD. The antibiotic doxycycline mimics the NGF signaling in PC12 cells: A relevant mechanism for neuroprotection. Chem Biol Interact 2021; 341:109454. [PMID: 33798505 DOI: 10.1016/j.cbi.2021.109454] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2020] [Revised: 03/07/2021] [Accepted: 03/25/2021] [Indexed: 10/21/2022]
Abstract
Doxycycline has been used as antibiotic since the 1960s. Recently, studies have shown that doxycycline is neuroprotective in models of neurodegenerative diseases and brain injuries, mainly due to anti-inflammatory and anti-apoptotic effects. However, it is not known if doxycycline has neurotrophic potential, which is relevant, considering the role of axonal degeneration at the early stages of neurodegeneration in Alzheimer's disease, Amyotrophic Lateral Sclerosis and Parkinson's disease as well as in normal aging. Axons are preceded by the formation of neurites, the hallmark of the neuronal differentiation induced by neurotrophins like NGF. Therefore, the modulation of neurotrophin receptors aimed at formation and regeneration of axons has been proposed as a strategy to delay the progression of neurodegeneration and has gained relevance as new techniques for early diagnosis arise. Based on these premises, we investigated the potential of doxycycline to mimic the effects of Nerve Growth Factor (NGF) with focus on the signaling pathways and neuronal modulators of neurite initiation, growth and branching. We used PC12 cells, a neuronal model widely employed to study the neurotrophic pathways and mechanisms induced by NGF. Results showed that doxycycline induced neurite outgrowth via activation of the trkA receptor and the downstream signaling pathways, PI3K/Akt and MAPK/ERK, without inducing the expression of NGF. Doxycycline also increased the expression of GAP-43, synapsin I and NF200, proteins involved in axonal and synaptic plasticity. Altogether, these data demonstrate, for the first time, the neurotrophic potential of doxycycline, which might be useful to restore the neuronal connectivity lost at the initial phase of neurodegeneration.
Collapse
Affiliation(s)
- Lilian do Amaral
- Departamento de Análises Clínicas, Toxicológicas e Bromatológicas, Faculdade de Ciências Farmacêuticas de Ribeirão Preto - USP, Av Do Café S/n, 14040-903, Ribeirão Preto, SP, Brazil
| | - Neife Aparecida Guinaim Dos Santos
- Departamento de Análises Clínicas, Toxicológicas e Bromatológicas, Faculdade de Ciências Farmacêuticas de Ribeirão Preto - USP, Av Do Café S/n, 14040-903, Ribeirão Preto, SP, Brazil
| | - Flávia Malvestio Sisti
- Departamento de Análises Clínicas, Toxicológicas e Bromatológicas, Faculdade de Ciências Farmacêuticas de Ribeirão Preto - USP, Av Do Café S/n, 14040-903, Ribeirão Preto, SP, Brazil
| | - Elaine Del Bel
- Departamento de Morfologia, Estomatologia e Fisiologia, Faculdade de Odontologia de Ribeirão Preto - USP, 14040-904, Ribeirão Preto, SP, Brazil
| | - Antônio Cardozo Dos Santos
- Departamento de Análises Clínicas, Toxicológicas e Bromatológicas, Faculdade de Ciências Farmacêuticas de Ribeirão Preto - USP, Av Do Café S/n, 14040-903, Ribeirão Preto, SP, Brazil.
| |
Collapse
|
20
|
Thomson AC, Schuhmann T, de Graaf TA, Sack AT, Rutten BPF, Kenis G. The Effects of Serum Removal on Gene Expression and Morphological Plasticity Markers in Differentiated SH-SY5Y Cells. Cell Mol Neurobiol 2021; 42:1829-1839. [PMID: 33656634 PMCID: PMC9239930 DOI: 10.1007/s10571-021-01062-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Accepted: 02/12/2021] [Indexed: 11/06/2022]
Abstract
Despite the widespread use of the SH-SY5Y human neuroblastoma cell line in modeling human neurons in vitro, protocols for growth, differentiation and experimentation differ considerably across the literature. Many studies fully differentiate SH-SY5Y cells before experimentation, to investigate plasticity measures in a mature, human neuronal-like cell model. Prior to experimentation, serum is often removed from cell culture media, to arrest the cell growth cycle and synchronize cells. However, the exact effect of this serum removal before experimentation on mature, differentiated SH-SY5Y cells has not yet been described. In studies using differentiated SH-SY5Y cells, any effect of serum removal on plasticity markers may influence results. The aim of the current study was to systematically characterize, in differentiated, neuronal-like SH-SY5Y cells, the potentially confounding effects of complete serum removal in terms of morphological and gene expression markers of plasticity. We measured changes in commonly used morphological markers and in genes related to neuroplasticity and synaptogenesis, particularly in the BDNF-TrkB signaling pathway. We found that complete serum removal from already differentiated SH-SY5Y cells increases neurite length, neurite branching, and the proportion of cells with a primary neurite, as well as proportion of βIII-Tubulin and MAP2 expressing cells. Gene expression results also indicate increased expression of PSD95 and NTRK2 expression 24 h after serum removal. We conclude that serum deprivation in differentiated SH-SY5Y cells affects morphology and gene expression and can potentially confound plasticity-related outcome measures, having significant implications for experimental design in studies using differentiated SH-SY5Y cells as a model of human neurons.
Collapse
Affiliation(s)
- Alix C Thomson
- Section Brain Stimulation and Cognition, Department of Cognitive Neuroscience, Faculty of Psychology and Neuroscience, Maastricht University, Oxfordlaan 55, Maastricht, The Netherlands. .,Department of Psychiatry and Neuropsychology, School for Mental Health and Neuroscience (MHeNS), Brain+Nerve Centre, Maastricht University Medical Centre+ (MUMC+), Maastricht, The Netherlands. .,Maastricht Brain Imaging Centre (MBIC), Maastricht University, Maastricht, The Netherlands. .,Centre for Integrative Neuroscience, Faculty of Psychology and Neuroscience, Faculty of Health, Medicine and Life Sciences, Maastricht University, Maastricht, The Netherlands.
| | - Teresa Schuhmann
- Section Brain Stimulation and Cognition, Department of Cognitive Neuroscience, Faculty of Psychology and Neuroscience, Maastricht University, Oxfordlaan 55, Maastricht, The Netherlands.,Maastricht Brain Imaging Centre (MBIC), Maastricht University, Maastricht, The Netherlands.,Centre for Integrative Neuroscience, Faculty of Psychology and Neuroscience, Faculty of Health, Medicine and Life Sciences, Maastricht University, Maastricht, The Netherlands
| | - Tom A de Graaf
- Section Brain Stimulation and Cognition, Department of Cognitive Neuroscience, Faculty of Psychology and Neuroscience, Maastricht University, Oxfordlaan 55, Maastricht, The Netherlands.,Maastricht Brain Imaging Centre (MBIC), Maastricht University, Maastricht, The Netherlands.,Centre for Integrative Neuroscience, Faculty of Psychology and Neuroscience, Faculty of Health, Medicine and Life Sciences, Maastricht University, Maastricht, The Netherlands
| | - Alexander T Sack
- Section Brain Stimulation and Cognition, Department of Cognitive Neuroscience, Faculty of Psychology and Neuroscience, Maastricht University, Oxfordlaan 55, Maastricht, The Netherlands.,Department of Psychiatry and Neuropsychology, School for Mental Health and Neuroscience (MHeNS), Brain+Nerve Centre, Maastricht University Medical Centre+ (MUMC+), Maastricht, The Netherlands.,Maastricht Brain Imaging Centre (MBIC), Maastricht University, Maastricht, The Netherlands.,Centre for Integrative Neuroscience, Faculty of Psychology and Neuroscience, Faculty of Health, Medicine and Life Sciences, Maastricht University, Maastricht, The Netherlands
| | - Bart P F Rutten
- Department of Psychiatry and Neuropsychology, School for Mental Health and Neuroscience (MHeNS), Brain+Nerve Centre, Maastricht University Medical Centre+ (MUMC+), Maastricht, The Netherlands.,Centre for Integrative Neuroscience, Faculty of Psychology and Neuroscience, Faculty of Health, Medicine and Life Sciences, Maastricht University, Maastricht, The Netherlands
| | - Gunter Kenis
- Department of Psychiatry and Neuropsychology, School for Mental Health and Neuroscience (MHeNS), Brain+Nerve Centre, Maastricht University Medical Centre+ (MUMC+), Maastricht, The Netherlands.,Centre for Integrative Neuroscience, Faculty of Psychology and Neuroscience, Faculty of Health, Medicine and Life Sciences, Maastricht University, Maastricht, The Netherlands
| |
Collapse
|
21
|
Lepa C, Hoppe S, Stöber A, Skryabin BV, Sievers LK, Heitplatz B, Ciarimboli G, Neugebauer U, Lindenmeyer MT, Cohen CD, Drexler HC, Boor P, Weide T, Pavenstädt H, George B. TrkC Is Essential for Nephron Function and Trans-Activates Igf1R Signaling. J Am Soc Nephrol 2021; 32:357-374. [PMID: 33380522 PMCID: PMC8054883 DOI: 10.1681/asn.2020040424] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Accepted: 11/03/2020] [Indexed: 02/04/2023] Open
Abstract
BACKGROUND Injury to kidney podocytes often results in chronic glomerular disease and consecutive nephron malfunction. For most glomerular diseases, targeted therapies are lacking. Thus, it is important to identify novel signaling pathways contributing to glomerular disease. Neurotrophic tyrosine kinase receptor 3 (TrkC) is expressed in podocytes and the protein transmits signals to the podocyte actin cytoskeleton. METHODS Nephron-specific TrkC knockout (TrkC-KO) and nephron-specific TrkC-overexpressing (TrkC-OE) mice were generated to dissect the role of TrkC in nephron development and maintenance. RESULTS Both TrkC-KO and TrkC-OE mice exhibited enlarged glomeruli, mesangial proliferation, basement membrane thickening, albuminuria, podocyte loss, and aspects of FSGS during aging. Igf1 receptor (Igf1R)-associated gene expression was dysregulated in TrkC-KO mouse glomeruli. Phosphoproteins associated with insulin, erb-b2 receptor tyrosine kinase (Erbb), and Toll-like receptor signaling were enriched in lysates of podocytes treated with the TrkC ligand neurotrophin-3 (Nt-3). Activation of TrkC by Nt-3 resulted in phosphorylation of the Igf1R on activating tyrosine residues in podocytes. Igf1R phosphorylation was increased in TrkC-OE mouse kidneys while it was decreased in TrkC-KO kidneys. Furthermore, TrkC expression was elevated in glomerular tissue of patients with diabetic kidney disease compared with control glomerular tissue. CONCLUSIONS Our results show that TrkC is essential for maintaining glomerular integrity. Furthermore, TrkC modulates Igf-related signaling in podocytes.
Collapse
Affiliation(s)
- Carolin Lepa
- Medizinische Klinik D, University Hospital Münster, Münster, Germany
| | - Sascha Hoppe
- Medizinische Klinik D, University Hospital Münster, Münster, Germany
| | - Antje Stöber
- Medizinische Klinik D, University Hospital Münster, Münster, Germany
| | - Boris V. Skryabin
- Medical Faculty, Core Facility Transgenic Animal and Genetic Engineering Models (TRAM), Westfälische-Wilhelms-University, Münster, Germany
| | | | - Barbara Heitplatz
- Gerhard-Domagk Institute for Pathology, University Hospital Münster, Münster, Germany
| | | | - Ute Neugebauer
- Medizinische Klinik D, University Hospital Münster, Münster, Germany
| | - Maja T. Lindenmeyer
- III. Medizinische Klinik und Poliklinik, University Hospital Hamburg-Eppendorf, Germany
| | - Clemens D. Cohen
- Klinik für Nieren-, Hochdruck- und Rheumaerkrankungen, München Klinik Harlaching, Germany
| | - Hannes C.A. Drexler
- Mass Spectrometry Unit, Max Planck Institute for Molecular Biomedicine, Münster, Germany
| | - Peter Boor
- Institute of Pathology and Department of Nephrology, University Hospital Aachen, Rheinisch-Westfälische Technische Hochschule Aachen, Aachen, Germany
| | - Thomas Weide
- Medizinische Klinik D, University Hospital Münster, Münster, Germany
| | | | - Britta George
- Medizinische Klinik D, University Hospital Münster, Münster, Germany
| |
Collapse
|
22
|
Human VGF-Derived Antidepressant Neuropeptide TLQP62 Promotes SH-SY5Y Neurite Outgrowth. J Mol Neurosci 2020; 70:1293-1302. [PMID: 32458204 DOI: 10.1007/s12031-020-01541-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2019] [Accepted: 04/13/2020] [Indexed: 01/01/2023]
Abstract
TLQP62 is a neuropeptide derived from the neurotrophin-inducible VGF (non-acronymic) protein with antidepressant-like properties capable of inducing increased memory on the mouse hippocampus by promoting neurogenesis and synaptic plasticity through brain-derived neurotropic factor (BDNF) and its receptor tyrosine receptor kinase B (TrkB). Human SH-SY5Y neuroblastoma-derived cell line is widely used in neuroscience research and is known to undergo neurodifferentiation in the presence of all-trans retinoic acid by upregulating the expression of TrkB, making cells responsive to BDNF. As TLQP62 promotes BDNF expression, which in turn activates a BDNF/TrkB/CREB (cAMP response element-binding protein) pathway that upregulates VGF expression, there is a VGF-BDNF regulatory loop that seems to regulate neurogenesis. Therefore, here, we evaluate by morphological observation the ability of human TLQP62 to induce neuritogenesis of human SH-SY5Y neuroblastoma-derived cell line in a retinoic acid and BDFN-like way, making this cell line a suitable cell model for further studies concerning TLQP62 molecular mechanisms and signalling pathways. SIGNIFICANCE STATEMENT: VGF has been widely explored for its role in emotional behaviour and neuropsychiatric illness (Bartolomucci et al. 2011). Although VGF levels were found reduced in leukocytes of depressed patients, after antidepressant treatment or voluntary exercise, those levels were found to be restored in the hippocampus (Hunsberger et al. 2007; Thakker-Varia et al. 2007). Administration to hippocampal cells of TLQP62 produced an increase in synaptic charge that could explain this antidepressants effects (Alder et al. 2003). This interesting role of TLQP62 in the brain, especially in the hippocampus, makes this neuropeptide an attractive target for further investigation of its role in neurogenesis, learning, memory, and neurological disorders, and possible treatment development. Thus, the identification of a receptor(s) for this peptide and associated signalling pathway(s) is of high importance, as well as a proper cell model to perform those studies.
Collapse
|
23
|
Pitake S, Middleton LJ, Abdus-Saboor I, Mishra SK. Inflammation Induced Sensory Nerve Growth and Pain Hypersensitivity Requires the N-Type Calcium Channel Cav2.2. Front Neurosci 2019; 13:1009. [PMID: 31607850 PMCID: PMC6761232 DOI: 10.3389/fnins.2019.01009] [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: 05/31/2019] [Accepted: 09/05/2019] [Indexed: 12/26/2022] Open
Abstract
Voltage-gated calcium channels (VGCCs) are important mediators of pain hypersensitivity during inflammatory states, but their role in sensory nerve growth remains underexplored. Here, we assess the role of the N-type calcium channel Cav2.2 in the complete Freund’s adjuvant (CFA) model of inflammatory pain. We demonstrate with in situ hybridization and immunoblotting, an increase in Cav2.2 expression after hind paw CFA injection in sensory neurons that respond to thermal stimuli, but not in two different mechanosensitive neuronal populations. Further, Cav2.2 upregulation post-CFA correlates with thermal but not mechanical hyperalgesia in behaving mice, and this hypersensitivity is blocked with a specific Cav2.2 inhibitor. Voltage clamp recordings reveal a significant increase in Cav2.2 currents post-CFA, while current clamp analyses demonstrate a significant increase in action potential frequency. Moreover, CFA-induced sensory nerve growth, which involves the extracellular signal-related kinase (ERK1/2) signaling pathway and likely contributes to inflammation-induced hyperalgesia, was blocked with the Cav2.2 inhibitor. Together, this work uncovers a role for Cav2.2 during inflammation, demonstrating that VGCC activity can promote thermal hyperalgesia through both changes in firing rates of sensory neurons as well as promotion of new neurite outgrowth.
Collapse
Affiliation(s)
- Saumitra Pitake
- Department of Molecular Biomedical Sciences, College of Veterinary Medicine, North Carolina State University, Raleigh, NC, United States.,Department of Biology, University of Pennsylvania, Philadelphia, PA, United States
| | - Leah J Middleton
- Department of Biology, University of Pennsylvania, Philadelphia, PA, United States
| | - Ishmail Abdus-Saboor
- Department of Biology, University of Pennsylvania, Philadelphia, PA, United States
| | - Santosh K Mishra
- Department of Molecular Biomedical Sciences, College of Veterinary Medicine, North Carolina State University, Raleigh, NC, United States.,Comparative Medicine Institute, College of Veterinary Medicine, North Carolina State University, Raleigh, NC, United States.,The W.M. Keck Center for Behavioral Biology, North Carolina State University, Raleigh, NC, United States.,Program in Genetics, North Carolina State University, Raleigh, NC, United States
| |
Collapse
|
24
|
Houlton J, Abumaria N, Hinkley SFR, Clarkson AN. Therapeutic Potential of Neurotrophins for Repair After Brain Injury: A Helping Hand From Biomaterials. Front Neurosci 2019; 13:790. [PMID: 31427916 PMCID: PMC6688532 DOI: 10.3389/fnins.2019.00790] [Citation(s) in RCA: 63] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2019] [Accepted: 07/15/2019] [Indexed: 12/17/2022] Open
Abstract
Stroke remains the leading cause of long-term disability with limited options available to aid in recovery. Significant effort has been made to try and minimize neuronal damage following stroke with use of neuroprotective agents, however, these treatments have yet to show clinical efficacy. Regenerative interventions have since become of huge interest as they provide the potential to restore damaged neural tissue without being limited by a narrow therapeutic window. Neurotrophins, such as brain-derived neurotrophic factor (BDNF), and their high affinity receptors are actively produced throughout the brain and are involved in regulating neuronal activity and normal day-to-day function. Furthermore, neurotrophins are known to play a significant role in both protection and recovery of function following neurodegenerative diseases such as stroke and traumatic brain injury (TBI). Unfortunately, exogenous administration of these neurotrophins is limited by a lack of blood-brain-barrier (BBB) permeability, poor half-life, and rapid degradation. Therefore, we have focused this review on approaches that provide a direct and sustained neurotrophic support using pharmacological therapies and mimetics, physical activity, and potential drug delivery systems, including discussion around advantages and limitations for use of each of these systems. Finally, we discuss future directions of biomaterial drug-delivery systems, including the incorporation of heparan sulfate (HS) in conjunction with neurotrophin-based interventions.
Collapse
Affiliation(s)
- Josh Houlton
- Brain Health Research Centre, Department of Anatomy, University of Otago, Dunedin, New Zealand
| | - Nashat Abumaria
- State Key Laboratory of Medical Neurobiology, MOE Frontiers Center for Brain Science, Institute of Brain Science, Fudan University, Shanghai, China
- Department of Laboratory Animal Science, Shanghai Medical College, Fudan University, Shanghai, China
| | - Simon F. R. Hinkley
- The Ferrier Research Institute, Victoria University of Wellington, Petone, New Zealand
| | - Andrew N. Clarkson
- Brain Health Research Centre, Department of Anatomy, University of Otago, Dunedin, New Zealand
| |
Collapse
|
25
|
Dedoni S, Marras L, Olianas MC, Ingianni A, Onali P. Downregulation of TrkB Expression and Signaling by Valproic Acid and Other Histone Deacetylase Inhibitors. J Pharmacol Exp Ther 2019; 370:490-503. [PMID: 31308194 DOI: 10.1124/jpet.119.258129] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2019] [Accepted: 06/14/2019] [Indexed: 01/27/2023] Open
Abstract
Valproic acid (VPA) has been shown to regulate the levels of brain-derived neurotrophic factor (BDNF), but it is not known whether this drug can affect the neuronal responses to BDNF. In the present study, we show that in retinoic acid-differentiated SH-SY5Y human neuroblastoma cells, prolonged exposure to VPA reduces the expression of the BDNF receptor TrkB at the protein and mRNA levels and inhibits the intracellular signaling, neurotrophic activity, and prosurvival function of BDNF. VPA downregulates TrkB and curtails BDNF-induced signaling also in differentiated Kelly and LAN-1 neuroblastoma cells and primary mouse cortical neurons. The VPA effect is mimicked by several histone deacetylase (HDAC) inhibitors, including the class I HDAC inhibitors entinostat and romidepsin. Conversely, the class II HDAC inhibitor MC1568, the HDAC6 inhibitor tubacin, the HDAC8 inhibitor PCI-34051, and the VPA derivative valpromide have no effect. In neuroblastoma cells and primary neurons both VPA and entinostat increase the cellular levels of the transcription factor RUNX3, which negatively regulates TrkB gene expression. Treatment with RUNX3 siRNA attenuates VPA-induced RUNX3 elevation and TrkB downregulation. VPA, entinostat, HDAC1 depletion by siRNA, and 3-deazaneplanocin A (DZNep), an inhibitor of the polycomb repressor complex 2 (PRC2), decrease the PRC2 core component EZH2, a RUNX3 suppressor. Like VPA, HDAC1 depletion and DZNep increase RUNX3 and decrease TrkB expression. These results indicate that VPA downregulates TrkB through epigenetic mechanisms involving the EZH2/RUNX3 axis and provide evidence that this effect implicates relevant consequences with regard to BDNF efficacy in stimulating intracellular signaling and functional responses. SIGNIFICANCE STATEMENT: The tropomyosin-related kinase receptor B (TrkB) mediates the stimulatory effects of brain-derived neurotrophic factor (BDNF) on neuronal growth, differentiation, and survival and is highly expressed in aggressive neuroblastoma and other tumors. Here we show that exposure to valproic acid (VPA) downregulates TrkB expression and functional activity in retinoic acid-differentiated human neuroblastoma cell lines and primary mouse cortical neurons. The effects of VPA are mimicked by other histone deacetylase (HDAC) inhibitors and HDAC1 knockdown and appear to be mediated by an epigenetic mechanism involving the upregulation of RUNX3, a suppressor of TrkB gene expression. TrkB downregulation may have relevance for the use of VPA as a potential therapeutic agent in neuroblastoma and other pathologies characterized by an excessive BDNF/TrkB signaling.
Collapse
Affiliation(s)
- Simona Dedoni
- Laboratory of Cellular and Molecular Pharmacology, Section of Neurosciences, Department of Biomedical Sciences (S.D., M.C.O., P.O.) and Section of Microbiology, Department of Biomedical Sciences (L.M., A.I.), University of Cagliari, Cagliari, Italy
| | - Luisa Marras
- Laboratory of Cellular and Molecular Pharmacology, Section of Neurosciences, Department of Biomedical Sciences (S.D., M.C.O., P.O.) and Section of Microbiology, Department of Biomedical Sciences (L.M., A.I.), University of Cagliari, Cagliari, Italy
| | - Maria C Olianas
- Laboratory of Cellular and Molecular Pharmacology, Section of Neurosciences, Department of Biomedical Sciences (S.D., M.C.O., P.O.) and Section of Microbiology, Department of Biomedical Sciences (L.M., A.I.), University of Cagliari, Cagliari, Italy
| | - Angela Ingianni
- Laboratory of Cellular and Molecular Pharmacology, Section of Neurosciences, Department of Biomedical Sciences (S.D., M.C.O., P.O.) and Section of Microbiology, Department of Biomedical Sciences (L.M., A.I.), University of Cagliari, Cagliari, Italy
| | - Pierluigi Onali
- Laboratory of Cellular and Molecular Pharmacology, Section of Neurosciences, Department of Biomedical Sciences (S.D., M.C.O., P.O.) and Section of Microbiology, Department of Biomedical Sciences (L.M., A.I.), University of Cagliari, Cagliari, Italy
| |
Collapse
|
26
|
Genomic and non-genomic pathways are both crucial for peak induction of neurite outgrowth by retinoids. Cell Commun Signal 2019; 17:40. [PMID: 31046795 PMCID: PMC6498645 DOI: 10.1186/s12964-019-0352-4] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2019] [Accepted: 04/09/2019] [Indexed: 12/22/2022] Open
Abstract
Retinoic acid (RA) is the active metabolite of vitamin A and essential for many physiological processes, particularly the induction of cell differentiation. In addition to regulating genomic transcriptional activity via RA receptors (RARs) and retinoid X receptors (RXRs), non-genomic mechanisms of RA have been described, including the regulation of ERK1/2 kinase phosphorylation, but are poorly characterised. In this study, we test the hypothesis that genomic and non-genomic mechanisms of RA are regulated independently with respect to the involvement of ligand-dependent RA receptors. A panel of 28 retinoids (compounds with vitamin A-like activity) showed a marked disparity in genomic (gene expression) versus non-genomic (ERK1/2 phosphorylation) assays. These results demonstrate that the capacity of a compound to activate gene transcription does not necessarily correlate with its ability to regulate a non-genomic activity such as ERK 1/2 phosphorylation. Furthermore, a neurite outgrowth assay indicated that retinoids that could only induce either genomic, or non-genomic activities, were not strong promoters of neurite outgrowth, and that activities with respect to both transcriptional regulation and ERK1/2 phosphorylation produced maximum neurite outgrowth. These results suggest that the development of effective retinoids for clinical use will depend on the selection of compounds which have maximal activity in non-genomic as well as genomic assays.
Collapse
|
27
|
Nafian F, Rasaee MJ, Yazdani S, Daftarian N, Soheili ZS, Kamali Doust Azad B. Peptide selected by phage display increases survival of SH-SY5Y neurons comparable to brain-derived neurotrophic factor. J Cell Biochem 2019; 120:7612-7622. [PMID: 30387183 DOI: 10.1002/jcb.28036] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2018] [Accepted: 10/15/2018] [Indexed: 01/24/2023]
Abstract
Brain-derived neurotrophic factor (BDNF) is a well-known neuroprotectant and a potent therapeutic candidate for neurodegenerative diseases. However, there are several clinical concerns about its therapeutic applications. In the current study, we designed and developed BDNF-mimicking small peptides as an alternative to circumvent these problems. A phage-displayed peptide library was screened using BDNF receptor (neurotrophic tyrosine kinase receptor type2 [NTRK2]) and evaluated by ELISA. The peptide sequences showed similarity to loop2 of BDNF, they were recognized as discontinuous epitopes though. Interestingly, in silico molecular docking showed strong interactions between the peptide three-dimensional models and the surface residues of the NTRK2 protein at the IgC2 domain. A consensus peptide sequence was then synthesized to generate a mimetic construct (named as RNYK). The affinity binding and function of this construct was confirmed by testing against the native structure of NTRK2 in SH-SY5Y cells in vitro using flow-cytometry and MTT assays, respectively. RNYK at 5 ng/mL prevented neuronal degeneration of all- trans-retinoic acid-treated SH-SY5Y with equal efficacy to or even better than BDNF at 50 ng/mL.
Collapse
Affiliation(s)
- Fatemeh Nafian
- Department of Medical Biotechnology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Mohammad Javad Rasaee
- Department of Medical Biotechnology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Shahin Yazdani
- Ocular Tissue Engineering Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.,Ophthalmic Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Narsis Daftarian
- Ocular Tissue Engineering Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.,Ophthalmic Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Zahra Soheila Soheili
- Department of Molecular Medicine, National Institute of Genetic Engineering and Biotechnology, Tehran, Iran
| | - Babak Kamali Doust Azad
- Department of Electronics, School of Electrical and Computer Engineering, Tehran University, Tehran, Iran
| |
Collapse
|
28
|
The Anti-Tumor Agent Sodium Selenate Decreases Methylated PP2A, Increases GSK3βY216 Phosphorylation, Including Tau Disease Epitopes and Reduces Neuronal Excitability in SHSY-5Y Neurons. Int J Mol Sci 2019; 20:ijms20040844. [PMID: 30781361 PMCID: PMC6412488 DOI: 10.3390/ijms20040844] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2019] [Revised: 02/12/2019] [Accepted: 02/12/2019] [Indexed: 12/20/2022] Open
Abstract
Selenium application as sodium selenate was repeatedly shown to have anti-carcinogenic properties by increasing levels of the serine/ threonine protein phosphatase 2A (PP2A) in cancer cells. PP2A has a prominent role in cell development, homeostasis, and in neurons regulates excitability. PP2A, GSK3β and Tau reside together in a complex, which facilitates their interaction and (dys)-function as has been reported for several neurological disorders. In this study we recorded maximum increase in total PP2A at 3 µM sodium selenate in a neuron cell line. In conjunction with these data, whole-cell electrophysiological studies revealed that this concentration had maximum effect on membrane potentials, conductance and currents. Somewhat surprisingly, the catalytically active form, methylated PP2A (mePP2A) was significantly decreased. In close correlation to these data, the phosphorylation state of two substrate proteins, sensitive to PP2A activity, GSK3β and Tau were found to be increased. In summary, our data reveal that sodium selenate enhances PP2A levels, but reduces catalytic activity of PP2A in a dose dependent manner, which fails to reduce Tau and GSK3β phosphorylation under physiological conditions, indicating an alternative route in the rescue of cell pathology in neurological disorders.
Collapse
|
29
|
Wang L, Bing T, Liu Y, Zhang N, Shen L, Liu X, Wang J, Shangguan D. Imaging of Neurite Network with an Anti-L1CAM Aptamer Generated by Neurite-SELEX. J Am Chem Soc 2018; 140:18066-18073. [PMID: 30485743 DOI: 10.1021/jacs.8b10783] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Neurite outgrowth is the critical step of nervous development. Molecular probes against neurites are essential for evaluation of the nervous system development, compound neurotoxicity, and drug efficacy on nerve regeneration. To obtain a neurite probe, we developed a neurite-SELEX strategy and generated a DNA aptamer, yly12, that strongly binds neurites. The molecular target of yly12 was identified to be neural cell adhesion molecule L1 (L1CAM), a surface antigen expressed in normal nervous system and various cancers. Here, yly12 was successfully applied to image the three-dimensional network of neurites between live cells, as well as the neurite fibers on normal brain tissue section. This aptamer was also found to have an inhibitory effect on neurite outgrowth between cells. Given the advantages of aptamers, yly12 hold great potential as a molecular tool in the field of neuroscientific research. The high efficiency of neurite-SELEX suggests that SELEX against a subcellular structure instead of the whole cells is more effective in obtaining the desired aptamers.
Collapse
Affiliation(s)
- Linlin Wang
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Analytical Chemistry for Living Biosystems, CAS Research/Education Center for Excellence in Molecular Sciences , Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190 , China.,University of the Chinese Academy of Sciences , Beijing 100049 , China
| | - Tao Bing
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Analytical Chemistry for Living Biosystems, CAS Research/Education Center for Excellence in Molecular Sciences , Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190 , China.,University of the Chinese Academy of Sciences , Beijing 100049 , China
| | - Ying Liu
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Analytical Chemistry for Living Biosystems, CAS Research/Education Center for Excellence in Molecular Sciences , Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190 , China.,University of the Chinese Academy of Sciences , Beijing 100049 , China
| | - Nan Zhang
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Analytical Chemistry for Living Biosystems, CAS Research/Education Center for Excellence in Molecular Sciences , Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190 , China.,University of the Chinese Academy of Sciences , Beijing 100049 , China
| | - Luyao Shen
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Analytical Chemistry for Living Biosystems, CAS Research/Education Center for Excellence in Molecular Sciences , Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190 , China.,University of the Chinese Academy of Sciences , Beijing 100049 , China
| | - Xiangjun Liu
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Analytical Chemistry for Living Biosystems, CAS Research/Education Center for Excellence in Molecular Sciences , Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190 , China.,University of the Chinese Academy of Sciences , Beijing 100049 , China
| | - Junyan Wang
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Analytical Chemistry for Living Biosystems, CAS Research/Education Center for Excellence in Molecular Sciences , Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190 , China.,University of the Chinese Academy of Sciences , Beijing 100049 , China
| | - Dihua Shangguan
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Analytical Chemistry for Living Biosystems, CAS Research/Education Center for Excellence in Molecular Sciences , Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190 , China.,University of the Chinese Academy of Sciences , Beijing 100049 , China
| |
Collapse
|
30
|
Brem AK, Sensi SL. Towards Combinatorial Approaches for Preserving Cognitive Fitness in Aging. Trends Neurosci 2018; 41:885-897. [DOI: 10.1016/j.tins.2018.09.009] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2018] [Revised: 09/21/2018] [Accepted: 09/24/2018] [Indexed: 12/11/2022]
|
31
|
STIM1 deficiency is linked to Alzheimer's disease and triggers cell death in SH-SY5Y cells by upregulation of L-type voltage-operated Ca 2+ entry. J Mol Med (Berl) 2018; 96:1061-1079. [PMID: 30088035 PMCID: PMC6133163 DOI: 10.1007/s00109-018-1677-y] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2018] [Revised: 07/18/2018] [Accepted: 07/24/2018] [Indexed: 12/14/2022]
Abstract
Abstract STIM1 is an endoplasmic reticulum protein with a role in Ca2+ mobilization and signaling. As a sensor of intraluminal Ca2+ levels, STIM1 modulates plasma membrane Ca2+ channels to regulate Ca2+ entry. In neuroblastoma SH-SY5Y cells and in familial Alzheimer’s disease patient skin fibroblasts, STIM1 is cleaved at the transmembrane domain by the presenilin-1-associated γ-secretase, leading to dysregulation of Ca2+ homeostasis. In this report, we investigated expression levels of STIM1 in brain tissues (medium frontal gyrus) of pathologically confirmed Alzheimer’s disease patients, and observed that STIM1 protein expression level decreased with the progression of neurodegeneration. To study the role of STIM1 in neurodegeneration, a strategy was designed to knock-out the expression of STIM1 gene in the SH-SY5Y neuroblastoma cell line by CRISPR/Cas9-mediated genome editing, as an in vitro model to examine the phenotype of STIM1-deficient neuronal cells. It was proved that, while STIM1 is not required for the differentiation of SH-SY5Y cells, it is absolutely essential for cell survival in differentiating cells. Differentiated STIM1-KO cells showed a significant decrease of mitochondrial respiratory chain complex I activity, mitochondrial inner membrane depolarization, reduced mitochondrial free Ca2+ concentration, and higher levels of senescence as compared with wild-type cells. In parallel, STIM1-KO cells showed a potentiated Ca2+ entry in response to depolarization, which was sensitive to nifedipine, pointing to L-type voltage-operated Ca2+ channels as mediators of the upregulated Ca2+ entry. The stable knocking-down of CACNA1C transcripts restored mitochondrial function, increased mitochondrial Ca2+ levels, and dropped senescence to basal levels, demonstrating the essential role of the upregulation of voltage-operated Ca2+ entry through Cav1.2 channels in STIM1-deficient SH-SY5Y cell death. Key messages STIM1 protein expression decreases with the progression of neurodegeneration in Alzheimer’s disease. STIM1 is essential for cell viability in differentiated SH-SY5Y cells. STIM1 deficiency triggers voltage-regulated Ca2+ entry-dependent cell death. Mitochondrial dysfunction and senescence are features of STIM1-deficient differentiated cells.
Electronic supplementary material The online version of this article (10.1007/s00109-018-1677-y) contains supplementary material, which is available to authorized users.
Collapse
|
32
|
Yuan ZZ, Suo YR, Hao XY, Wang SL, Li G, Wang HL. Triterpenic Acids from Potentilla parvifolia and Their Protective Effects against Okadaic Acid Induced Neurotoxicity in Differentiated SH-SY5Y Cells. Biol Pharm Bull 2018; 41:885-890. [DOI: 10.1248/bpb.b17-01010] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Zhen-zhen Yuan
- State Key Laboratory of Plateau Ecology and Agriculture, Qinghai University
- Agriculture and Animal Husbandry College, Qinghai University
| | - You-rui Suo
- State Key Laboratory of Plateau Ecology and Agriculture, Qinghai University
- Key Laboratory of Tibetan Medicine Research, Northwest Institute of Plateau Biology, Chinese Academy of Sciences
| | - Xue-yan Hao
- Center for Mitochondria and Healthy Aging, College of Life Sciences, Yantai University
| | - Shu-lin Wang
- Agriculture and Animal Husbandry College, Qinghai University
| | - Gang Li
- Center for Mitochondria and Healthy Aging, College of Life Sciences, Yantai University
| | - Hong-lun Wang
- State Key Laboratory of Plateau Ecology and Agriculture, Qinghai University
- Key Laboratory of Tibetan Medicine Research, Northwest Institute of Plateau Biology, Chinese Academy of Sciences
| |
Collapse
|
33
|
Kowiański P, Lietzau G, Czuba E, Waśkow M, Steliga A, Moryś J. BDNF: A Key Factor with Multipotent Impact on Brain Signaling and Synaptic Plasticity. Cell Mol Neurobiol 2018; 38:579-593. [PMID: 28623429 PMCID: PMC5835061 DOI: 10.1007/s10571-017-0510-4] [Citation(s) in RCA: 776] [Impact Index Per Article: 129.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2017] [Accepted: 06/08/2017] [Indexed: 12/15/2022]
Abstract
Brain-derived neurotrophic factor (BDNF) is one of the most widely distributed and extensively studied neurotrophins in the mammalian brain. Among its prominent functions, one can mention control of neuronal and glial development, neuroprotection, and modulation of both short- and long-lasting synaptic interactions, which are critical for cognition and memory. A wide spectrum of processes are controlled by BDNF, and the sometimes contradictory effects of its action can be explained based on its specific pattern of synthesis, comprising several intermediate biologically active isoforms that bind to different types of receptor, triggering several signaling pathways. The functions of BDNF must be discussed in close relation to the stage of brain development, the different cellular components of nervous tissue, as well as the molecular mechanisms of signal transduction activated under physiological and pathological conditions. In this review, we briefly summarize the current state of knowledge regarding the impact of BDNF on regulation of neurophysiological processes. The importance of BDNF for future studies aimed at disclosing mechanisms of activation of signaling pathways, neuro- and gliogenesis, as well as synaptic plasticity is highlighted.
Collapse
Affiliation(s)
- Przemysław Kowiański
- Department of Anatomy and Neurobiology, Medical University of Gdansk, 1 Debinki Street, 80-211, Gdańsk, Poland.
- Department of Health Sciences, Pomeranian University of Slupsk, 64 Bohaterów Westerplatte Str., 76-200, Słupsk, Poland.
| | - Grażyna Lietzau
- Department of Anatomy and Neurobiology, Medical University of Gdansk, 1 Debinki Street, 80-211, Gdańsk, Poland
| | - Ewelina Czuba
- Department of Anatomy and Neurobiology, Medical University of Gdansk, 1 Debinki Street, 80-211, Gdańsk, Poland
| | - Monika Waśkow
- Department of Health Sciences, Pomeranian University of Slupsk, 64 Bohaterów Westerplatte Str., 76-200, Słupsk, Poland
| | - Aleksandra Steliga
- Department of Health Sciences, Pomeranian University of Slupsk, 64 Bohaterów Westerplatte Str., 76-200, Słupsk, Poland
| | - Janusz Moryś
- Department of Anatomy and Neurobiology, Medical University of Gdansk, 1 Debinki Street, 80-211, Gdańsk, Poland
| |
Collapse
|
34
|
Zhu MY. Noradrenergic Modulation on Dopaminergic Neurons. Neurotox Res 2018; 34:848-859. [DOI: 10.1007/s12640-018-9889-z] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2018] [Revised: 03/05/2018] [Accepted: 03/08/2018] [Indexed: 12/24/2022]
|
35
|
Park BN, Yoon JK, An YS. Bone marrow mesenchymal stem cell transplantation in acute brain trauma. Nuklearmedizin 2018; 52:192-7. [DOI: 10.3413/nukmed-0543-12-11] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2012] [Accepted: 05/06/2013] [Indexed: 01/22/2023]
Abstract
SummaryAim: This study was performed to evaluate the effects of intravenously transplanted rat bone-marrow derived mesenchymal stem cells (rBMSCs) in an acute brain trauma model using serial 18F-fluorodeoxyglucose (18F-FDG) positron emission tomography (PET) in rat models. Animals, methods: Trauma models were made using a controlled cortical impact injury device. The stem cell treatment group was treated with intravenous injections of BMSCs, and models without stem cell therapy comprised the control group. Serial 18F-FDG PET images were obtained 1, 7, 14, 21, and 28 days after trauma. The difference in 18F-FDG uptake between day 1 and each time point after trauma was analyzed with SPM2 (uncorrected p < 0.005). Results: The stem cell treatment group demonstrated significantly higher 18F-FDG uptake in the right parietal region at 14 days after trauma than at 1 day after trauma. An increase in glucose metabolism in the right parietal cortex appeared on days 21 and 28 after trauma in the group without stem cell treatment. The 18F-FDG uptake in the brain was improved over a broader area, including the right parietal and right primary somatosensory cortex, on days 21 and 28 after trauma in the stem cell treatment group compared with the group without stem cell treatment. Conclusion: BMSC therapy in trauma models led to improved glucose metabolism. This result might support the therapeutic effect of stem cells in brain trauma.
Collapse
|
36
|
Kamkaew A, Li F, Li Z, Burgess K. An agent for optical imaging of TrkC-expressing, breast cancer. MEDCHEMCOMM 2017; 8:1946-1952. [PMID: 30108715 DOI: 10.1039/c7md00328e] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2017] [Accepted: 08/17/2017] [Indexed: 11/21/2022]
Abstract
Tropomyosin receptor kinases receptor C is expressed at high levels on the surface of tumors from metastatic breast cancer, metastatic melanoma, glioblastoma, and neuroblastoma. Previous studies have shown synthetic TrkC ligands bearing agents for photodynamic therapy could be used to completely ablate 4T1 metastatic breast tumors and suppress metastatic spread in vivo. Modification of these probes (A in the text) to make them suitable for near infrared optical imaging in vivo would require a substantial increase in molecular mass (and hence increased vulnerability to undesirable absorption, metabolism and immunogenicity effects), or significant changes to the probe design which might compromise binding to TrkC in histochemical studies and on live cells. The research featured here was undertaken to investigate if the second strategy could be achieved without compromising binding to TrkC-expressing tissues. Specifically, an "aza-BODIPY" probe was synthesized to replace a spacer fragment in the original probe A. In the event, this new probe design (1a in the text) binds TrkC+ breast cancer in live cell cultures, in histochemical studies and in an in vivo murine model. Probe 1a binds TrkC+ tissues with good contrast with respect to healthy tissues, and much more strongly than an isomeric, non-TrkC binding, probe (1b) prepared as a negative control.
Collapse
Affiliation(s)
- Anyanee Kamkaew
- Department of Chemistry , Texas A & M University , Box 30012, College Station , TX 77842 , USA . .,School of Chemistry , Institute of Science , Suranaree University of Technology , Nakhon Ratchasima 30000 , Thailand
| | - Feng Li
- Center for Bioenergetics , Houston Methodist Research Institute , Houston , TX 77030 , USA .
| | - Zheng Li
- Center for Bioenergetics , Houston Methodist Research Institute , Houston , TX 77030 , USA .
| | - Kevin Burgess
- Department of Chemistry , Texas A & M University , Box 30012, College Station , TX 77842 , USA .
| |
Collapse
|
37
|
Song J, Kim YK. Identification of the Role of miR-142-5p in Alzheimer's Disease by Comparative Bioinformatics and Cellular Analysis. Front Mol Neurosci 2017; 10:227. [PMID: 28769761 PMCID: PMC5513939 DOI: 10.3389/fnmol.2017.00227] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2017] [Accepted: 07/03/2017] [Indexed: 12/17/2022] Open
Abstract
Alzheimer's disease (AD) is the most common neurodegenerative disease characterized by the formation of amyloid beta (Aβ) or tau protein aggregates, the hallmark of cognitive decline. MicroRNAs (miRNAs) have emerged as critical factors in neurogenesis and synaptic functions in the central nervous system (CNS). Recent studies have reported alterations in miRNA expression in patients with AD. However, miRNAs associated with AD varied with patient groups or experimental models, suggesting the need for a comparative study to identify miRNAs commonly dysregulated in diverse AD models. Here, we investigated the miRNAs that show dysregulated expression in two different human AD groups and mouse and cellular AD models. After selection of commonly dysregulated miRNAs in these groups, we investigated the pathophysiological significance of miR-142-5p in SH-SY5Y neuronal cells. We found that miR-142-5p was increased upon treatment with Aβ peptide 1-42 (Aβ42). Inhibition of miR-142-5p rescued the Aβ42-mediated synaptic dysfunctions, as indicated by the expression of postsynaptic density protein 95 (PSD-95). Among genes with decreased expression in Aβ42-treated SH-SY5Y cells, the predicted miR-142-5p target genes were significantly related with neuronal function and synapse plasticity. These findings suggest that dysregulation in miR-142-5p expression contributes the pathogenesis of AD by triggering synaptic dysfunction associated with Aβ42-mediated pathophysiology.
Collapse
Affiliation(s)
- Juhyun Song
- Department of Biomedical Sciences, Center for Creative Biomedical Scientists at Chonnam National UniversityGwangju, South Korea
| | - Young-Kook Kim
- Department of Biomedical Sciences, Center for Creative Biomedical Scientists at Chonnam National UniversityGwangju, South Korea.,Department of Biochemistry, Chonnam National University Medical SchoolJeollanam-do, South Korea
| |
Collapse
|
38
|
Yuan Z, Luan G, Wang Z, Hao X, Li J, Suo Y, Li G, Wang H. Flavonoids from Potentilla parvifolia
Fisch
. and Their Neuroprotective Effects in Human Neuroblastoma SH-SY5Y Cells in vitro. Chem Biodivers 2017; 14. [DOI: 10.1002/cbdv.201600487] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2016] [Accepted: 03/08/2017] [Indexed: 12/12/2022]
Affiliation(s)
- Zhenzhen Yuan
- Key Laboratory of Tibetan Medicine Research; Northwest Institute of Plateau Biology; Chinese Academy of Sciences; Xining 810008 P. R. China
- University of Chinese Academy of Sciences; Beijing 100049 P. R. China
| | - Guangxiang Luan
- Key Laboratory of Tibetan Medicine Research; Northwest Institute of Plateau Biology; Chinese Academy of Sciences; Xining 810008 P. R. China
- University of Chinese Academy of Sciences; Beijing 100049 P. R. China
| | - Zhenhua Wang
- Center for Mitochondria and Healthy Aging; College of Life Sciences; Yantai University; Yantai 264005 P. R. China
| | - Xueyan Hao
- Center for Mitochondria and Healthy Aging; College of Life Sciences; Yantai University; Yantai 264005 P. R. China
| | - Ji Li
- Center for Mitochondria and Healthy Aging; College of Life Sciences; Yantai University; Yantai 264005 P. R. China
| | - Yourui Suo
- Key Laboratory of Tibetan Medicine Research; Northwest Institute of Plateau Biology; Chinese Academy of Sciences; Xining 810008 P. R. China
| | - Gang Li
- Center for Mitochondria and Healthy Aging; College of Life Sciences; Yantai University; Yantai 264005 P. R. China
| | - Honglun Wang
- Key Laboratory of Tibetan Medicine Research; Northwest Institute of Plateau Biology; Chinese Academy of Sciences; Xining 810008 P. R. China
- State Key Laboratory of Plateau Ecology and Agriculture; Qinghai University; Xining 810008 P. R. China
| |
Collapse
|
39
|
Endogenous regeneration: Engineering growth factors for stroke. Neurochem Int 2017; 107:57-65. [PMID: 28411103 DOI: 10.1016/j.neuint.2017.03.024] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2016] [Revised: 03/30/2017] [Accepted: 03/31/2017] [Indexed: 12/31/2022]
Abstract
Despite the efforts in developing therapeutics for stroke, recombinant tissue plasminogen activator (rtPA) remains the only FDA approved drug for ischemic stroke. Regenerative medicine targeting endogenous growth factors has drawn much interest in the clinical field as it provides potential restoration for the damaged brain tissue without being limited by a narrow therapeutic window. To date, most of the translational studies using regenerative medicines have encountered problems and failures. In this review, we discuss the effects of some trophic factors which include of erythropoietin (EPO), brain derived neurotrophic factor (BDNF), granulocyte-colony stimulating factor (G-CSF), vascular endothelial growth factor (VEGF), fibroblast growth factor (FGF), epidermal growth factor (EGF) and heparin binding epidermal growth factor (HB-EGF) in experimental ischemic stroke models and elaborate the lost in translation of the candidate growth factors from bench to bedside. Several new methodologies have been developed to overcome the caveats in translational studies. This review highlights the latest bioengineering approaches including the controlled release and delivery of growth factors by hydrogel-based scaffolds and the enhancement of half-life and selectivity of growth factors by a novel approach facilitated by glycosaminoglycans.
Collapse
|
40
|
MPP+ induces necrostatin-1- and ferrostatin-1-sensitive necrotic death of neuronal SH-SY5Y cells. Cell Death Discov 2017; 3:17013. [PMID: 28250973 PMCID: PMC5327502 DOI: 10.1038/cddiscovery.2017.13] [Citation(s) in RCA: 83] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2016] [Revised: 12/16/2016] [Accepted: 01/10/2017] [Indexed: 12/13/2022] Open
Abstract
Regulation of cell death is potentially a powerful treatment modality for intractable diseases such as neurodegenerative diseases. Although there have been many reports about the possible involvement of various types of cell death in neurodegenerative diseases, it is still unclear exactly how neurons die in patients with these diseases, thus treatment strategies based on cell death regulation have not been established yet. To obtain some insight into the mechanisms of cell death involved in neurodegenerative diseases, we studied the effect of 1-methyl-4-phenylpyridinium (MPP+) on the human neuroblastoma cell line SH-SY5Y (a widely used model of Parkinson’s disease). We found that MPP+ predominantly induced non-apoptotic death of neuronally differentiated SH-SY5Y cells. This cell death was strongly inhibited by necrostatin-1 (Nec-1), a necroptosis inhibitor, and by an indole-containing compound (3,3′-diindolylmethane: DIM). However, it occurred independently of receptor-interacting serine/threonine-protein kinase 1/3 (RIP1/RIP3), indicating that this form of cell death was not necroptosis. MPP+-induced cell death was also inhibited by several inhibitors of ferroptosis, including ferrostatin-1 (Fer-1). Although MPP+-induced death and ferroptosis shared some features, such as occurrence of lipid peroxidation and inhibition by Fer-1, MPP+-induced death seemed to be distinct from ferroptosis because MPP+-induced death (but not ferroptosis) was inhibited by Nec-1, was independent of p53, and was accompanied by ATP depletion and mitochondrial swelling. Further investigation of MPP+-induced non-apoptotic cell death may be useful for understanding the mechanisms of neuronal loss and for treatment of neurodegenerative diseases such as Parkinson’s disease.
Collapse
|
41
|
Hernandez-Martinez JM, Forrest CM, Darlington LG, Smith RA, Stone TW. Quinolinic acid induces neuritogenesis in SH-SY5Y neuroblastoma cells independently of NMDA receptor activation. Eur J Neurosci 2017; 45:700-711. [PMID: 27973747 DOI: 10.1111/ejn.13499] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2016] [Revised: 11/29/2016] [Accepted: 11/29/2016] [Indexed: 12/25/2022]
Abstract
Glutamate and nicotinamide adenine dinucleotide (NAD+ ) have been implicated in neuronal development and several types of cancer. The kynurenine pathway of tryptophan metabolism includes quinolinic acid (QA) which is both a selective agonist at N-methyl-D-aspartate (NMDA) receptors and also a precursor for the formation of NAD+ . The effect of QA on cell survival and differentiation has therefore been examined on SH-SY5Y human neuroblastoma cells. Retinoic acid (RA, 10 μm) induced differentiation of SH-SY5Y cells into a neuronal phenotype showing neurite growth. QA (50-150 nm) also caused a concentration-dependent increase in the neurite/soma ratio, indicating differentiation. Both RA and QA increased expression of the neuronal marker β3-tubulin in whole-cell homogenates and in the neuritic fraction assessed using a neurite outgrowth assay. Expression of the neuronal proliferation marker doublecortin revealed that, unlike RA, QA did not decrease the number of mitotic cells. QA-induced neuritogenesis coincided with an increase in the generation of reactive oxygen species. Neuritogenesis was prevented by diphenylene-iodonium (an inhibitor of NADPH oxidase) and superoxide dismutase, supporting the involvement of reactive oxygen species. NMDA itself did not promote neuritogenesis and the NMDA antagonist dizocilpine (MK-801) did not prevent quinolinate-induced neuritogenesis, indicating that the effects of QA were independent of NMDA receptors. Nicotinamide caused a significant increase in the neurite/soma ratio and the expression of β3-tubulin in the neuritic fraction. Taken together, these results suggest that QA induces neuritogenesis by promoting oxidizing conditions and affecting the availability of NAD+ , independently of NMDA receptors.
Collapse
Affiliation(s)
- Juan-Manuel Hernandez-Martinez
- Institute of Neuroscience and Psychology, College of Medical, Veterinary and Life Sciences, University of Glasgow, West Medical Building, Glasgow, G12 8QQ, UK
| | - Caroline M Forrest
- Institute of Neuroscience and Psychology, College of Medical, Veterinary and Life Sciences, University of Glasgow, West Medical Building, Glasgow, G12 8QQ, UK
| | | | - Robert A Smith
- Institute of Neuroscience and Psychology, College of Medical, Veterinary and Life Sciences, University of Glasgow, West Medical Building, Glasgow, G12 8QQ, UK
| | - Trevor W Stone
- Institute of Neuroscience and Psychology, College of Medical, Veterinary and Life Sciences, University of Glasgow, West Medical Building, Glasgow, G12 8QQ, UK
| |
Collapse
|
42
|
The cannabinoid beta-caryophyllene (BCP) induces neuritogenesis in PC12 cells by a cannabinoid-receptor-independent mechanism. Chem Biol Interact 2016; 261:86-95. [PMID: 27871898 DOI: 10.1016/j.cbi.2016.11.015] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2016] [Revised: 10/22/2016] [Accepted: 11/16/2016] [Indexed: 01/27/2023]
Abstract
Beta-caryophyllene (BCP) is a phytocannabinoid whose neuroprotective activity has been mainly associated with selective activation of cannabinoid-type-2 (CB2) receptors, inhibition of microglial activation and decrease of inflammation. Here, we addressed the potential of BCP to induce neuritogenesis in PC12 cells, a model system for primary neuronal cells that express trkA receptors, respond to NGF and do not express CB2 receptors. We demonstrated that BCP increases the survival and activates the NGF-specific receptor trkA in NGF-deprived PC12 cells, without increasing the expression of NGF itself. The neuritogenic effect of BCP in PC12 cells was abolished by k252a, an inhibitor of the NGF-specific receptor trkA. Accordingly, BCP did not induce neuritogenesis in SH-SY5Y neuroblastoma cells, a neuronal model that does not express trkA receptors and do not respond to NGF. Additionally, we demonstrated that BCP increases the expression of axonal-plasticity-associated proteins (GAP-43, synapsin and synaptophysin) in PC12 cells. It is known that these proteins are up-regulated by NGF in neurons and neuron-like cells, such as PC12 cells. Altogether, these findings suggest that BCP activates trka receptors and induces neuritogenesis by a mechanism independent of NGF or cannabinoid receptors. This is the first study to show such effects of BCP and their beneficial role in neurodegenerative processes should be further investigated.
Collapse
|
43
|
Sun F, Nguyen T, Jin X, Huang R, Chen Z, Cunningham RL, Singh M, Su C. Pgrmc1/BDNF Signaling Plays a Critical Role in Mediating Glia-Neuron Cross Talk. Endocrinology 2016; 157:2067-79. [PMID: 26990062 PMCID: PMC4870882 DOI: 10.1210/en.2015-1610] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Progesterone (P4) exerts robust cytoprotection in brain slice cultures (containing both neurons and glia), yet such protection is not as evident in neuron-enriched cultures, suggesting that glia may play an indispensable role in P4's neuroprotection. We previously reported that a membrane-associated P4 receptor, P4 receptor membrane component 1, mediates P4-induced brain-derived neurotrophic factor (BDNF) release from glia. Here, we sought to determine whether glia are required for P4's neuroprotection and whether glia's roles are mediated, at least partially, via releasing soluble factors to act on neighboring neurons. Our data demonstrate that P4 increased the level of mature BDNF (neuroprotective) while decreasing pro-BDNF (potentially neurotoxic) in the conditioned media (CMs) of cultured C6 astrocytes. We examined the effects of CMs derived from P4-treated astrocytes (P4-CMs) on 2 neuronal models: 1) all-trans retinoid acid-differentiated SH-SY5Y cells and 2) mouse primary hippocampal neurons. P4-CM increased synaptic marker expression and promoted neuronal survival against H2O2. These effects were attenuated by Y1036 (an inhibitor of neurotrophin receptor [tropomysin-related kinase] signaling), as well as tropomysin-related kinase B-IgG (a more specific inhibitor to block BDNF signaling), which pointed to BDNF as the key protective component within P4-CM. These findings suggest that P4 may exert its maximal protection by triggering a glia-neuron cross talk, in which P4 promotes mature BDNF release from glia to enhance synaptogenesis as well as survival of neurons. This recognition of the importance of glia in mediating P4's neuroprotection may also inform the design of effective therapeutic methods for treating diseases wherein neuronal death and/or synaptic deficits are noted.
Collapse
Affiliation(s)
- Fen Sun
- Department of Pharmacology and Neuroscience, University of North Texas Health Science Center, Fort Worth, Texas 76107
| | - Trinh Nguyen
- Department of Pharmacology and Neuroscience, University of North Texas Health Science Center, Fort Worth, Texas 76107
| | - Xin Jin
- Department of Pharmacology and Neuroscience, University of North Texas Health Science Center, Fort Worth, Texas 76107
| | - Renqi Huang
- Department of Pharmacology and Neuroscience, University of North Texas Health Science Center, Fort Worth, Texas 76107
| | - Zhenglan Chen
- Department of Pharmacology and Neuroscience, University of North Texas Health Science Center, Fort Worth, Texas 76107
| | - Rebecca L Cunningham
- Department of Pharmacology and Neuroscience, University of North Texas Health Science Center, Fort Worth, Texas 76107
| | - Meharvan Singh
- Department of Pharmacology and Neuroscience, University of North Texas Health Science Center, Fort Worth, Texas 76107
| | - Chang Su
- Department of Pharmacology and Neuroscience, University of North Texas Health Science Center, Fort Worth, Texas 76107
| |
Collapse
|
44
|
Reichl S, Segelcke D, Keller V, Jonas R, Boecker A, Wenk M, Evers D, Zahn PK, Pogatzki-Zahn EM. Activation of glial glutamate transporter via MAPK p38 prevents enhanced and long-lasting non-evoked resting pain after surgical incision in rats. Neuropharmacology 2016; 105:607-617. [PMID: 26920805 DOI: 10.1016/j.neuropharm.2016.02.024] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2015] [Revised: 02/06/2016] [Accepted: 02/19/2016] [Indexed: 12/20/2022]
Abstract
Pain after surgery has recently become a major issue not only due to lack of treatment success in the acute phase; even more alarming is the large number of patients developing prolonged pain after surgery. Because spinal glutamate as well as spinal glia plays a major role in acute incisional pain, we investigated the role of the spinal glial glutamate transporters (GT), GLAST, GLT-1, for acute and prolonged pain and hyperalgesia caused by an incision. Spinal administration of the GT-inhibitor DL-TBOA increased non-evoked pain but not evoked pain behavior (hyperalgesia) up to 2 weeks after incision. In accordance, spinal GLAST (and to a lesser degree GLT-1) were upregulated after incision for several days. Long-term incision induced GT upregulation was prevented by long-lasting p38-inhibitor administration but not by long-lasting ERK1/2-inhibition after incision. In accordance, daily treatment with the p38-inhibitor (but not the ERK1/2 inhibitor) prolonged non-evoked but not evoked pain behavior after incision. In electrophysiological experiments, spontaneous activity of high threshold (HT) (but not wide dynamic range (WDR)) neurons known to transmit incision induced non-evoked pain was increased after prolonged treatment with the p38-inhibitor. In conclusion, our findings indicate a new spinal pathway by which non-evoked pain behavior after incision is modulated. The pathway is modality (non-evoked pain) and neuron (HT) specific and disturbance contributes to prolonged long-term pain after surgical incision. This may have therapeutic implications for the treatment of acute and - even more relevant - for prevention of chronic pain after surgery in patients.
Collapse
Affiliation(s)
- Sylvia Reichl
- Department of Anesthesiology, Intensive Care and Pain Medicine, University Hospital Muenster, Albert-Schweitzer-Campus 1, Gebäude A1, 48149 Muenster, Germany; Department of Anesthesiology, Perioperative and General Intensive Care Medicine, University Hospital Salzburg and Paracelsus Private Medical University, Muellner Hauptstr. 48, 5020 Salzburg, Austria
| | - Daniel Segelcke
- Department of Anesthesiology, Intensive Care and Pain Medicine, University Hospital Muenster, Albert-Schweitzer-Campus 1, Gebäude A1, 48149 Muenster, Germany
| | - Viktor Keller
- Department of Anesthesiology, Intensive Care and Pain Medicine, University Hospital Muenster, Albert-Schweitzer-Campus 1, Gebäude A1, 48149 Muenster, Germany
| | - Robin Jonas
- Department of Anesthesiology and Intensive Care, Faculty of Medicine at Mannheim, University of Heidelberg, Theodor-Kutzer-Ufer, 68167 Mannheim, Germany
| | - Armin Boecker
- Department of Anesthesiology, Intensive Care and Pain Medicine, University Hospital Muenster, Albert-Schweitzer-Campus 1, Gebäude A1, 48149 Muenster, Germany
| | - Manuel Wenk
- Department of Anesthesiology, Intensive Care and Pain Medicine, University Hospital Muenster, Albert-Schweitzer-Campus 1, Gebäude A1, 48149 Muenster, Germany
| | - Dagmar Evers
- Department of Anesthesiology, Intensive Care and Pain Medicine, University Hospital Muenster, Albert-Schweitzer-Campus 1, Gebäude A1, 48149 Muenster, Germany
| | - Peter K Zahn
- Department of Anesthesiology, Intensive Care and Pain Treatment, Ruhr-University Bochum, BG-Kliniken Bergmannsheil, Buerkle-de-la-Camp-Platz 1, Bochum, Germany
| | - Esther M Pogatzki-Zahn
- Department of Anesthesiology, Intensive Care and Pain Medicine, University Hospital Muenster, Albert-Schweitzer-Campus 1, Gebäude A1, 48149 Muenster, Germany.
| |
Collapse
|
45
|
Interferon-β Inhibits Neurotrophin 3 Signalling and Pro-Survival Activity by Upregulating the Expression of Truncated TrkC-T1 Receptor. Mol Neurobiol 2016; 54:1825-1843. [PMID: 26887385 DOI: 10.1007/s12035-016-9789-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2015] [Accepted: 02/11/2016] [Indexed: 12/17/2022]
Abstract
Although clinically useful for the treatment of various diseases, type I interferons (IFNs) have been implicated as causative factors of a number of neuroinflammatory disorders characterized by neuronal damage and altered CNS functions. As neurotrophin 3 (NT3) plays a critical role in neuroprotection, we examined the effects of IFN-β on the signalling and functional activity of the NT3/TrkC system. We found that prolonged exposure of differentiated human SH-SY5Y neuroblastoma cells to IFN-β impaired the ability of NT3 to induce transphosphorylation of the full-length TrkC receptor (TrkC-FL) and the phosphorylation of downstream signalling molecules, including PLCγ1, Akt, GSK-3β and ERK1/2. NT3 was effective in protecting the cells against apoptosis triggered by serum withdrawal or thapsigargin but not IFN-β. Prolonged exposure to the cytokine had little effects on TrkC-FL levels but markedly enhanced the messenger RNA (mRNA) and protein levels of the truncated isoform TrkC-T1, a dominant-negative receptor that inhibits TrkC-FL activity. Cell depletion of TrkC-T1 by small interfering RNA (siRNA) treatment enhanced NT3 signalling through TrkC-FL and allowed the neurotrophin to counteract IFN-β-induced apoptosis. Furthermore, the upregulation of TrkC-T1 by IFN-β was associated with the inhibition of NT3-induced recruitment of the scaffold protein tamalin to TrkC-T1 and tamalin tyrosine phosphorylation. These data indicate that IFN-β exerts a negative control on NT3 pro-survival signalling through a novel mechanism involving the upregulation of TrkC-T1.
Collapse
|
46
|
Woo YS, Seo HJ, McIntyre RS, Bahk WM. Obesity and Its Potential Effects on Antidepressant Treatment Outcomes in Patients with Depressive Disorders: A Literature Review. Int J Mol Sci 2016; 17:ijms17010080. [PMID: 26771598 PMCID: PMC4730324 DOI: 10.3390/ijms17010080] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2015] [Accepted: 01/04/2016] [Indexed: 02/07/2023] Open
Abstract
Accumulating evidence regarding clinical, neurobiological, genetic, and environmental factors suggests a bidirectional link between obesity and depressive disorders. Although a few studies have investigated the link between obesity/excess body weight and the response to antidepressants in depressive disorders, the effect of weight on treatment response remains poorly understood. In this review, we summarized recent data regarding the relationship between the response to antidepressants and obesity/excess body weight in clinical studies of patients with depressive disorders. Although several studies indicated an association between obesity/excess body weight and poor antidepressant responses, it is difficult to draw definitive conclusions due to the variability of subject composition and methodological differences among studies. Especially, differences in sex, age and menopausal status, depressive symptom subtypes, and antidepressants administered may have caused inconsistencies in the results among studies. The relationship between obesity/excess body weight and antidepressant responses should be investigated further in high-powered studies addressing the differential effects on subject characteristics and treatment. Moreover, future research should focus on the roles of mediating factors, such as inflammatory markers and neurocognitive performance, which may alter the antidepressant treatment outcome in patients with comorbid obesity and depressive disorder.
Collapse
Affiliation(s)
- Young Sup Woo
- Department of Psychiatry, College of Medicine, the Catholic University of Korea, Seoul 07345, Korea.
- Mood Disorders Psychopharmacology Unit, University Health Network, Toronto, ON M5T 2S8, Canada.
| | - Hye-Jin Seo
- Department of Psychiatry, College of Medicine, the Catholic University of Korea, Seoul 07345, Korea.
| | - Roger S McIntyre
- Mood Disorders Psychopharmacology Unit, University Health Network, Toronto, ON M5T 2S8, Canada.
- Department of Psychiatry, University of Toronto, Toronto, ON M5T 2S8, Canada.
| | - Won-Myong Bahk
- Department of Psychiatry, College of Medicine, the Catholic University of Korea, Seoul 07345, Korea.
| |
Collapse
|
47
|
Forster JI, Köglsberger S, Trefois C, Boyd O, Baumuratov AS, Buck L, Balling R, Antony PMA. Characterization of Differentiated SH-SY5Y as Neuronal Screening Model Reveals Increased Oxidative Vulnerability. ACTA ACUST UNITED AC 2016; 21:496-509. [PMID: 26738520 PMCID: PMC4904349 DOI: 10.1177/1087057115625190] [Citation(s) in RCA: 127] [Impact Index Per Article: 15.9] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2015] [Accepted: 12/10/2015] [Indexed: 02/01/2023]
Abstract
The immortalized and proliferative cell line SH-SY5Y is one of the most commonly used cell lines in neuroscience and neuroblastoma research. However, undifferentiated SH-SY5Y cells share few properties with mature neurons. In this study, we present an optimized neuronal differentiation protocol for SH-SY5Y that requires only two work steps and 6 days. After differentiation, the cells present increased levels of ATP and plasma membrane activity but reduced expression of energetic stress response genes. Differentiation results in reduced mitochondrial membrane potential and decreased robustness toward perturbations with 6-hydroxydopamine. We are convinced that the presented differentiation method will leverage genetic and chemical high-throughput screening projects targeting pathways that are involved in the selective vulnerability of neurons with high energetic stress levels.
Collapse
Affiliation(s)
- J I Forster
- Luxembourg Centre for Systems Biomedicine (LCSB), Esch-sur-Alzette, Luxembourg
| | - S Köglsberger
- Luxembourg Centre for Systems Biomedicine (LCSB), Esch-sur-Alzette, Luxembourg
| | - C Trefois
- Luxembourg Centre for Systems Biomedicine (LCSB), Esch-sur-Alzette, Luxembourg
| | - O Boyd
- Luxembourg Centre for Systems Biomedicine (LCSB), Esch-sur-Alzette, Luxembourg
| | - A S Baumuratov
- Luxembourg Centre for Systems Biomedicine (LCSB), Esch-sur-Alzette, Luxembourg
| | - L Buck
- Luxembourg Centre for Systems Biomedicine (LCSB), Esch-sur-Alzette, Luxembourg
| | - R Balling
- Luxembourg Centre for Systems Biomedicine (LCSB), Esch-sur-Alzette, Luxembourg
| | - P M A Antony
- Luxembourg Centre for Systems Biomedicine (LCSB), Esch-sur-Alzette, Luxembourg
| |
Collapse
|
48
|
Yamagishi M, Hosoda-Yabe R, Tamai H, Konishi M, Imamura A, Ishida H, Yabe T, Ando H, Kiso M. Structure-Activity Relationship Study of the Neuritogenic Potential of the Glycan of Starfish Ganglioside LLG-3 (‡). Mar Drugs 2015; 13:7250-74. [PMID: 26690179 PMCID: PMC4699235 DOI: 10.3390/md13127062] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2015] [Accepted: 11/25/2015] [Indexed: 11/27/2022] Open
Abstract
LLG-3 is a ganglioside isolated from the starfish Linchia laevigata. To clarify the structure-activity relationship of the glycan of LLG-3 toward rat pheochromocytoma PC12 cells in the presence of nerve growth factor, a series of mono- to tetrasaccharide glycan derivatives were chemically synthesized and evaluated in vitro. The methyl group at C8 of the terminal sialic acid residue was crucial for neuritogenic activity, and the terminal trisaccharide moiety was the minimum active motif. Furthermore, the trisaccharide also stimulated neuritogenesis in human neuroblastoma SH-SY5Y cells via mitogen-activated protein kinase (MAPK) signaling. Phosphorylation of extracellular signal-regulated kinase (ERK) 1/2 was rapidly induced by adding 1 or 10 nM of the trisaccharide. The ratio of phosphorylated ERK to ERK reached a maximum 5 min after stimulation, and then decreased gradually. However, the trisaccharide did not induce significant Akt phosphorylation. These effects were abolished by pretreatment with the MAPK inhibitor U0126, which inhibits enzymes MEK1 and MEK2. In addition, U0126 inhibited the phosphorylation of ERK 1/2 in response to the trisaccharide dose-dependently. Therefore, we concluded that the trisaccharide promotes neurite extension in SH-SY5Y cells via MAPK/ERK signaling, not Akt signaling.
Collapse
Affiliation(s)
- Megumi Yamagishi
- Department of Applied Bioorganic Chemistry, Faculty of Applied Biological Sciences, Gifu University, 1-1 Yanagido, Gifu-shi, Gifu 501-1193, Japan.
| | - Ritsuko Hosoda-Yabe
- Institute for Integrated Cell-Material Sciences (WPI-iCeMS), Kyoto University, Yoshida Ushinomiya-cho, Sakyo-ku, Kyoto 606-8501, Japan.
- Department of Applied Life Science, Faculty of Applied Biological Sciences, Gifu University, 1-1 Yanagido, Gifu-shi, Gifu 501-1193, Japan.
| | - Hideki Tamai
- Department of Applied Bioorganic Chemistry, Faculty of Applied Biological Sciences, Gifu University, 1-1 Yanagido, Gifu-shi, Gifu 501-1193, Japan.
- Institute for Integrated Cell-Material Sciences (WPI-iCeMS), Kyoto University, Yoshida Ushinomiya-cho, Sakyo-ku, Kyoto 606-8501, Japan.
| | - Miku Konishi
- Department of Applied Bioorganic Chemistry, Faculty of Applied Biological Sciences, Gifu University, 1-1 Yanagido, Gifu-shi, Gifu 501-1193, Japan.
- Institute for Integrated Cell-Material Sciences (WPI-iCeMS), Kyoto University, Yoshida Ushinomiya-cho, Sakyo-ku, Kyoto 606-8501, Japan.
| | - Akihiro Imamura
- Department of Applied Bioorganic Chemistry, Faculty of Applied Biological Sciences, Gifu University, 1-1 Yanagido, Gifu-shi, Gifu 501-1193, Japan.
| | - Hideharu Ishida
- Department of Applied Bioorganic Chemistry, Faculty of Applied Biological Sciences, Gifu University, 1-1 Yanagido, Gifu-shi, Gifu 501-1193, Japan.
| | - Tomio Yabe
- Department of Applied Life Science, Faculty of Applied Biological Sciences, Gifu University, 1-1 Yanagido, Gifu-shi, Gifu 501-1193, Japan.
| | - Hiromune Ando
- Department of Applied Bioorganic Chemistry, Faculty of Applied Biological Sciences, Gifu University, 1-1 Yanagido, Gifu-shi, Gifu 501-1193, Japan.
- Institute for Integrated Cell-Material Sciences (WPI-iCeMS), Kyoto University, Yoshida Ushinomiya-cho, Sakyo-ku, Kyoto 606-8501, Japan.
| | - Makoto Kiso
- Department of Applied Bioorganic Chemistry, Faculty of Applied Biological Sciences, Gifu University, 1-1 Yanagido, Gifu-shi, Gifu 501-1193, Japan.
- Institute for Integrated Cell-Material Sciences (WPI-iCeMS), Kyoto University, Yoshida Ushinomiya-cho, Sakyo-ku, Kyoto 606-8501, Japan.
| |
Collapse
|
49
|
Santos NAG, Martins NM, Sisti FM, Fernandes LS, Ferreira RS, Queiroz RHC, Santos AC. The neuroprotection of cannabidiol against MPP + -induced toxicity in PC12 cells involves trkA receptors, upregulation of axonal and synaptic proteins, neuritogenesis, and might be relevant to Parkinson's disease. Toxicol In Vitro 2015; 30:231-40. [DOI: 10.1016/j.tiv.2015.11.004] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2015] [Revised: 10/16/2015] [Accepted: 11/06/2015] [Indexed: 11/29/2022]
|
50
|
Gibb SL, Zhao Y, Potter D, Hylin MJ, Bruhn R, Baimukanova G, Zhao J, Xue H, Abdel-Mohsen M, Pillai SK, Moore AN, Johnson EM, Cox CS, Dash PK, Pati S. TIMP3 Attenuates the Loss of Neural Stem Cells, Mature Neurons and Neurocognitive Dysfunction in Traumatic Brain Injury. Stem Cells 2015; 33:3530-44. [PMID: 26299440 DOI: 10.1002/stem.2189] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2015] [Revised: 07/30/2015] [Accepted: 08/07/2015] [Indexed: 12/19/2022]
Abstract
Mesenchymal stem cells (MSCs) have been shown to have potent therapeutic effects in a number of disorders including traumatic brain injury (TBI). However, the molecular mechanism(s) underlying these protective effects are largely unknown. Herein we demonstrate that tissue inhibitor of matrix metalloproteinase-3 (TIMP3), a soluble protein released by MSCs, is neuroprotective and enhances neuronal survival and neurite outgrowth in vitro. In vivo in a murine model of TBI, intravenous recombinant TIMP3 enhances dendritic outgrowth and abrogates loss of hippocampal neural stem cells and mature neurons. Mechanistically we demonstrate in vitro and in vivo that TIMP3-mediated neuroprotection is critically dependent on activation of the Akt-mTORC1 pathway. In support of the neuroprotective effect of TIMP3, we find that intravenous delivery of recombinant TIMP3 attenuates deficits in hippocampal-dependent neurocognition. Taken together, our data strongly suggest that TIMP3 has direct neuroprotective effects that can mitigate the deleterious effects associated with TBI, an area with few if any therapeutic options.
Collapse
Affiliation(s)
- Stuart L Gibb
- Blood Systems Research Institute, San Francisco, California, USA.,Department of Laboratory Medicine, University of California San Francisco, San Francisco, California, USA
| | - Yuhai Zhao
- Department of Neurobiology and Anatomy, The University of Texas Health Sciences Center at Houston, Houston, Texas, USA
| | - Daniel Potter
- Blood Systems Research Institute, San Francisco, California, USA.,Department of Laboratory Medicine, University of California San Francisco, San Francisco, California, USA
| | - Michael J Hylin
- Department of Neurobiology and Anatomy, The University of Texas Health Sciences Center at Houston, Houston, Texas, USA
| | - Roberta Bruhn
- Blood Systems Research Institute, San Francisco, California, USA.,Department of Laboratory Medicine, University of California San Francisco, San Francisco, California, USA
| | - Gyulnar Baimukanova
- Blood Systems Research Institute, San Francisco, California, USA.,Department of Laboratory Medicine, University of California San Francisco, San Francisco, California, USA
| | - Jing Zhao
- Department of Neurobiology and Anatomy, The University of Texas Health Sciences Center at Houston, Houston, Texas, USA
| | - Hasen Xue
- Department of Pediatric Surgery and Institute for Molecular Medicine, The University of Texas Health Sciences Center at Houston, Houston, Texas, USA
| | - Mohamed Abdel-Mohsen
- Blood Systems Research Institute, San Francisco, California, USA.,Department of Laboratory Medicine, University of California San Francisco, San Francisco, California, USA
| | - Satish K Pillai
- Blood Systems Research Institute, San Francisco, California, USA.,Department of Laboratory Medicine, University of California San Francisco, San Francisco, California, USA
| | - Anthony N Moore
- Department of Neurobiology and Anatomy, The University of Texas Health Sciences Center at Houston, Houston, Texas, USA
| | - Evan M Johnson
- Department of Neurobiology and Anatomy, The University of Texas Health Sciences Center at Houston, Houston, Texas, USA
| | - Charles S Cox
- Department of Pediatric Surgery and Institute for Molecular Medicine, The University of Texas Health Sciences Center at Houston, Houston, Texas, USA
| | - Pramod K Dash
- Department of Neurobiology and Anatomy, The University of Texas Health Sciences Center at Houston, Houston, Texas, USA
| | - Shibani Pati
- Blood Systems Research Institute, San Francisco, California, USA.,Department of Laboratory Medicine, University of California San Francisco, San Francisco, California, USA
| |
Collapse
|