1
|
Abati E, Rizzuti M, Anastasia A, Comi GP, Corti S, Rizzo F. Charcot-Marie-Tooth type 2A in vivo models: Current updates. J Cell Mol Med 2024; 28:e18293. [PMID: 38722298 PMCID: PMC11081012 DOI: 10.1111/jcmm.18293] [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: 01/16/2024] [Revised: 03/13/2024] [Accepted: 03/25/2024] [Indexed: 05/12/2024] Open
Abstract
Charcot-Marie-Tooth type 2A (CMT2A) is an inherited sensorimotor neuropathy associated with mutations within the Mitofusin 2 (MFN2) gene. These mutations impair normal mitochondrial functioning via different mechanisms, disturbing the equilibrium between mitochondrial fusion and fission, of mitophagy and mitochondrial axonal transport. Although CMT2A disease causes a significant disability, no resolutive treatment for CMT2A patients to date. In this context, reliable experimental models are essential to precisely dissect the molecular mechanisms of disease and to devise effective therapeutic strategies. The most commonly used models are either in vitro or in vivo, and among the latter murine models are by far the most versatile and popular. Here, we critically revised the most relevant literature focused on the experimental models, providing an update on the mammalian models of CMT2A developed to date. We highlighted the different phenotypic, histopathological and molecular characteristics, and their use in translational studies for bringing potential therapies from the bench to the bedside. In addition, we discussed limitations of these models and perspectives for future improvement.
Collapse
Affiliation(s)
- Elena Abati
- Neurology Unit, Foundation IRCCS Ca' Granda Ospedale Maggiore PoliclinicoMilanItaly
- Department of Pathophysiology and Transplantation, Dino Ferrari CenterUniversità degli Studi di MilanoMilanItaly
| | - Mafalda Rizzuti
- Neurology Unit, Foundation IRCCS Ca' Granda Ospedale Maggiore PoliclinicoMilanItaly
| | - Alessia Anastasia
- Neurology Unit, Foundation IRCCS Ca' Granda Ospedale Maggiore PoliclinicoMilanItaly
| | - Giacomo Pietro Comi
- Neurology Unit, Foundation IRCCS Ca' Granda Ospedale Maggiore PoliclinicoMilanItaly
- Department of Pathophysiology and Transplantation, Dino Ferrari CenterUniversità degli Studi di MilanoMilanItaly
| | - Stefania Corti
- Department of Pathophysiology and Transplantation, Dino Ferrari CenterUniversità degli Studi di MilanoMilanItaly
- Neuromuscular and Rare Diseases Unit, Department of NeuroscienceFondazione IRCCS Ca' Granda Ospedale Maggiore PoliclinicoMilanItaly
| | - Federica Rizzo
- Neurology Unit, Foundation IRCCS Ca' Granda Ospedale Maggiore PoliclinicoMilanItaly
| |
Collapse
|
2
|
Lemmer D, Schmidt J, Kummer K, Lemmer B, Wrede A, Seitz C, Balcarek P, Schwarze K, Müller GA, Patschan D, Patschan S. Impairment of muscular endothelial cell regeneration in dermatomyositis. Front Neurol 2022; 13:952699. [PMID: 36330424 PMCID: PMC9623165 DOI: 10.3389/fneur.2022.952699] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Accepted: 09/01/2022] [Indexed: 11/22/2022] Open
Abstract
Background and aim Inflammatory myopathies are heterogeneous in terms of etiology, (immuno)pathology, and clinical findings. Endothelial cell injury, as it occurs in DM, is a common feature of numerous inflammatory and non-inflammatory vascular diseases. Vascular regeneration is mediated by both local and blood-derived mechanisms, such as the mobilization and activation of so-called proangiogenic cells (PACs) or early endothelial progenitor cells (eEPCs). The current study aimed to evaluate parameters of eEPC integrity in dermatomyositis (DM), compared to necrotizing myopathy (NM) and to non-myopathic controls. Methods Blood samples from DM and NM patients were compared to non-myositis controls and analyzed for the following parameters: circulating CD133+/VEGFR-2+ cells, number of colony-forming unit endothelial cells (CFU-ECs), concentrations of angiopoietin 1, vascular endothelial growth factor (VEGF), and CXCL-16. Muscle biopsies from DM and NM subjects underwent immunofluorescence analysis for CXCR6, nestin, and CD31 (PECAM-1). Finally, myotubes, derived from healthy donors, were stimulated with serum samples from DM and NM patients, subsequently followed by RT-PCR for the following candidates: IL-1β, IL-6, nestin, and CD31. Results Seventeen (17) DM patients, 7 NM patients, and 40 non-myositis controls were included. CD133+/VEGFR-2+ cells did not differ between the groups. Both DM and NM patients showed lower CFU-ECs than controls. In DM, intramuscular CD31 abundances were significantly reduced, which indicated vascular rarefaction. Muscular CXCR6 was elevated in both diseases. Circulating CXCL-16 was higher in DM and NM in contrast, compared to controls. Serum from patients with DM but not NM induced a profound upregulation of mRNS expression of CD31 and IL-6 in cultured myotubes. Conclusion Our study demonstrates the loss of intramuscular microvessels in DM, accompanied by endothelial activation in DM and NM. Vascular regeneration was impaired in DM and NM. The findings suggest a role for inflammation-associated vascular damage in the pathogenesis of DM.
Collapse
Affiliation(s)
- D. Lemmer
- Department of Nephrology and Rheumatology, University Medical Center Göttingen, Göttingen, Germany
- Immanuel Krankenhaus Berlin, Medical Center of Rheumatology Berlin-Buch, Berlin, Germany
| | - J. Schmidt
- Department of Neurology and Pain Treatment, Immanuel Klinik Rüdersdorf, University Hospital of the Brandenburg Medical School Theodor Fontane, Rüdersdorf bei Berlin, Germany
- Faculty of Health Sciences Brandenburg, Brandenburg Medical School Theodor Fontane, Rüdersdorf bei Berlin, Germany
- Department of Neurology, Neuromuscular Center, University Medical Center Göttingen, Göttingen, Germany
| | - K. Kummer
- Department of Neurology, Neuromuscular Center, University Medical Center Göttingen, Göttingen, Germany
| | - B. Lemmer
- Department of Physics, Georg-August-University Göttingen, Göttingen, Germany
| | - A. Wrede
- Department of Neuropathology, University Medical Center Göttingen, Göttingen, Germany
| | - C. Seitz
- Department of Dermatology, Allergology and Venereology, University Medical Center Göttingen, Göttingen, Germany
| | - P. Balcarek
- Department of Trauma Surgery, Orthopedics and Plastic Surgery, University Medical Center Göttingen, Göttingen, Germany
- Arcus Klinik, Pforzheim, Germany
| | - K. Schwarze
- Department of Nephrology and Rheumatology, University Medical Center Göttingen, Göttingen, Germany
| | - G. A. Müller
- Department of Nephrology and Rheumatology, University Medical Center Göttingen, Göttingen, Germany
| | - D. Patschan
- Faculty of Health Sciences Brandenburg, Brandenburg Medical School Theodor Fontane, Rüdersdorf bei Berlin, Germany
- Department of Medicine 1, Cardiology, Angiology, and Nephrology, University Hospital Brandenburg of the Brandenburg Medical School Theodor Fontane, Branderburg, Germany
| | - S. Patschan
- Faculty of Health Sciences Brandenburg, Brandenburg Medical School Theodor Fontane, Rüdersdorf bei Berlin, Germany
- Department of Medicine 1, Cardiology, Angiology, and Nephrology, University Hospital Brandenburg of the Brandenburg Medical School Theodor Fontane, Branderburg, Germany
- *Correspondence: S. Patschan
| |
Collapse
|
3
|
Morr AS, Nowicki M, Bertalan G, Vieira Silva R, Infante Duarte C, Koch SP, Boehm-Sturm P, Krügel U, Braun J, Steiner B, Käs JA, Fuhs T, Sack I. Mechanical properties of murine hippocampal subregions investigated by atomic force microscopy and in vivo magnetic resonance elastography. Sci Rep 2022; 12:16723. [PMID: 36202964 PMCID: PMC9537158 DOI: 10.1038/s41598-022-21105-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Accepted: 09/22/2022] [Indexed: 12/02/2022] Open
Abstract
The hippocampus is a very heterogeneous brain structure with different mechanical properties reflecting its functional variety. In particular, adult neurogenesis in rodent hippocampus has been associated with specific viscoelastic properties in vivo and ex vivo. Here, we study the microscopic mechanical properties of hippocampal subregions using ex vivo atomic force microscopy (AFM) in correlation with the expression of GFP in presence of the nestin promoter, providing a marker of neurogenic activity. We further use magnetic resonance elastography (MRE) to investigate whether in vivo mechanical properties reveal similar spatial patterns, however, on a much coarser scale. AFM showed that tissue stiffness increases with increasing distance from the subgranular zone (p = 0.0069), and that stiffness is 39% lower in GFP than non-GFP regions (p = 0.0004). Consistently, MRE showed that dentate gyrus is, on average, softer than Ammon´s horn (shear wave speed = 3.2 ± 0.2 m/s versus 4.4 ± 0.3 m/s, p = 0.01) with another 3.4% decrease towards the subgranular zone (p = 0.0001). The marked reduction in stiffness measured by AFM in areas of high neurogenic activity is consistent with softer MRE values, indicating the sensitivity of macroscopic mechanical properties in vivo to micromechanical structures as formed by the neurogenic niche of the hippocampus.
Collapse
Affiliation(s)
- Anna S Morr
- Department of Radiology, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Charitéplatz 1, 10117, Berlin, Germany
| | - Marcin Nowicki
- Institute of Anatomy, University of Leipzig, Leipzig, Germany
| | - Gergely Bertalan
- Department of Radiology, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Charitéplatz 1, 10117, Berlin, Germany
| | - Rafaela Vieira Silva
- Experimental and Clinical Research Center, Max Delbrück Center for Molecular Medicine in the Helmholtz Association (MDC) and Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany.,Einstein Center for Neurosciences Berlin, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany
| | - Carmen Infante Duarte
- Experimental and Clinical Research Center, Max Delbrück Center for Molecular Medicine in the Helmholtz Association (MDC) and Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany
| | - Stefan Paul Koch
- Department of Experimental Neurology and Center for Stroke Research, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany.,NeuroCure Cluster of Excellence and Charité Core Facility 7T Experimental MRIs, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany
| | - Philipp Boehm-Sturm
- Department of Experimental Neurology and Center for Stroke Research, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany.,NeuroCure Cluster of Excellence and Charité Core Facility 7T Experimental MRIs, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany
| | - Ute Krügel
- Rudolf Boehm Institute of Pharmacology and Toxicology, University of Leipzig, Leipzig, Germany
| | - Jürgen Braun
- Institute of Medical Informatics, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany
| | - Barbara Steiner
- Clinic for Neurology and Experimental Neurology, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany
| | - Josef A Käs
- Section of Soft Matter Physics, Peter Debye Institute for Soft Matter Physics, Faculty of Physics and Geosciences, University of Leipzig, Leipzig, Germany
| | - Thomas Fuhs
- Section of Soft Matter Physics, Peter Debye Institute for Soft Matter Physics, Faculty of Physics and Geosciences, University of Leipzig, Leipzig, Germany
| | - Ingolf Sack
- Department of Radiology, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Charitéplatz 1, 10117, Berlin, Germany.
| |
Collapse
|
4
|
Gross I, Brandt N, Vonk D, Köper F, Wöhlbrand L, Rabus R, Witt M, Heep A, Plösch T, Hipp MS, Bräuer AU. Plasticity-Related Gene 5 Is Expressed in a Late Phase of Neurodifferentiation After Neuronal Cell-Fate Determination. Front Cell Neurosci 2022; 16:797588. [PMID: 35496908 PMCID: PMC9053830 DOI: 10.3389/fncel.2022.797588] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2021] [Accepted: 03/17/2022] [Indexed: 12/27/2022] Open
Abstract
During adult neurogenesis, neuronal stem cells differentiate into mature neurons that are functionally integrated into the existing network. One hallmark during the late phase of this neurodifferentiation process is the formation of dendritic spines. These morphological specialized structures form the basis of most excitatory synapses in the brain, and are essential for neuronal communication. Additionally, dendritic spines are affected in neurological disorders, such as Alzheimer’s disease or schizophrenia. However, the mechanisms underlying spinogenesis, as well as spine pathologies, are poorly understood. Plasticity-related Gene 5 (PRG5), a neuronal transmembrane protein, has previously been linked to spinogenesis in vitro. Here, we analyze endogenous expression of the PRG5 protein in different mouse brain areas, as well as on a subcellular level. We found that native PRG5 is expressed dendritically, and in high abundance in areas characterized by their regenerative capacity, such as the hippocampus and the olfactory bulb. During adult neurogenesis, PRG5 is specifically expressed in a late phase after neuronal cell-fate determination associated with dendritic spine formation. On a subcellular level, we found PRG5 not to be localized at the postsynaptic density, but at the base of the synapse. In addition, we showed that PRG5-induced formation of membrane protrusions is independent from neuronal activity, supporting a possible role in the morphology and stabilization of spines.
Collapse
Affiliation(s)
- Isabel Gross
- Research Group Anatomy, School of Medicine and Health Sciences, Carl von Ossietzky University of Oldenburg, Oldenburg, Germany
- School of Medicine and Health Sciences, Carl von Ossietzky University of Oldenburg, Oldenburg, Germany
| | - Nicola Brandt
- Research Group Anatomy, School of Medicine and Health Sciences, Carl von Ossietzky University of Oldenburg, Oldenburg, Germany
- School of Medicine and Health Sciences, Carl von Ossietzky University of Oldenburg, Oldenburg, Germany
| | - Danara Vonk
- Research Group Anatomy, School of Medicine and Health Sciences, Carl von Ossietzky University of Oldenburg, Oldenburg, Germany
- School of Medicine and Health Sciences, Carl von Ossietzky University of Oldenburg, Oldenburg, Germany
- Department of Biomedical Sciences of Cells and Systems, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
| | - Franziska Köper
- Research Group Anatomy, School of Medicine and Health Sciences, Carl von Ossietzky University of Oldenburg, Oldenburg, Germany
- School of Medicine and Health Sciences, Carl von Ossietzky University of Oldenburg, Oldenburg, Germany
- Perinatal Neurobiology Research Group, School of Medicine and Health Sciences, Carl von Ossietzky University of Oldenburg, Oldenburg, Germany
| | - Lars Wöhlbrand
- General and Molecular Microbiology, Institute for Chemistry and Biology of the Marine Environment (ICBM), Carl von Ossietzky University of Oldenburg, Oldenburg, Germany
| | - Ralf Rabus
- General and Molecular Microbiology, Institute for Chemistry and Biology of the Marine Environment (ICBM), Carl von Ossietzky University of Oldenburg, Oldenburg, Germany
| | - Martin Witt
- Department of Anatomy, University Medical Center Rostock, Rostock, Germany
| | - Axel Heep
- School of Medicine and Health Sciences, Carl von Ossietzky University of Oldenburg, Oldenburg, Germany
- Perinatal Neurobiology Research Group, School of Medicine and Health Sciences, Carl von Ossietzky University of Oldenburg, Oldenburg, Germany
- Research Center Neurosensory Science, Carl von Ossietzky University of Oldenburg, Oldenburg, Germany
| | - Torsten Plösch
- School of Medicine and Health Sciences, Carl von Ossietzky University of Oldenburg, Oldenburg, Germany
- Perinatal Neurobiology Research Group, School of Medicine and Health Sciences, Carl von Ossietzky University of Oldenburg, Oldenburg, Germany
- Research Center Neurosensory Science, Carl von Ossietzky University of Oldenburg, Oldenburg, Germany
| | - Mark S. Hipp
- School of Medicine and Health Sciences, Carl von Ossietzky University of Oldenburg, Oldenburg, Germany
- Department of Biomedical Sciences of Cells and Systems, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
| | - Anja U. Bräuer
- Research Group Anatomy, School of Medicine and Health Sciences, Carl von Ossietzky University of Oldenburg, Oldenburg, Germany
- School of Medicine and Health Sciences, Carl von Ossietzky University of Oldenburg, Oldenburg, Germany
- Research Center Neurosensory Science, Carl von Ossietzky University of Oldenburg, Oldenburg, Germany
- *Correspondence: Anja U. Bräuer,
| |
Collapse
|
5
|
Mostajeran M, Edvinsson L, Ahnstedt H, Arkelius K, Ansar S. Repair-related molecular changes during recovery phase of ischemic stroke in female rats. BMC Neurosci 2022; 23:23. [PMID: 35413803 PMCID: PMC9004052 DOI: 10.1186/s12868-022-00696-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Accepted: 02/23/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Some degree of spontaneous recovery is usually observed after stroke. Experimental studies have provided information about molecular mechanisms underlying this recovery. However, the majority of pre-clinical stroke studies are performed in male rodents, and females are not well studied. This is a clear discrepancy when considering the clinical situation. Thus, it is important to include females in the evaluation of recovery mechanisms for future therapeutic strategies. This study aimed to evaluate spontaneous recovery and molecular mechanisms involved in the recovery phase two weeks after stroke in female rats. METHODS Transient middle cerebral artery occlusion was induced in female Wistar rats using a filament model. Neurological functions were assessed up to day 14 after stroke. Protein expression of interleukin 10 (IL-10), transforming growth factor (TGF)-β, neuronal specific nuclei protein (NeuN), nestin, tyrosine-protein kinase receptor Tie-2, extracellular signal-regulated kinase (ERK) 1/2, and Akt were evaluated in the peri-infarct and ischemic core compared to contralateral side of the brain at day 14 by western blot. Expression of TGF-β in middle cerebral arteries was evaluated by immunohistochemistry. RESULTS Spontaneous recovery after stroke was observed from day 2 to day 14 and was accompanied by a significantly higher expression of nestin, p-Akt, p-ERK1/2 and TGF-β in ischemic regions compared to contralateral side at day 14. In addition, a significantly higher expression of TGF-β was observed in occluded versus non-occluded middle cerebral arteries. The expression of Tie-2 and IL-10 did not differ between the ischemic and contralateral sides. CONCLUSION Spontaneous recovery after ischemic stroke in female rats was coincided by a difference observed in the expression of molecular markers. The alteration of these markers might be of importance to address future therapeutic strategies.
Collapse
Affiliation(s)
- Maryam Mostajeran
- Division of Experimental Vascular Research, Department of Clinical Sciences, Faculty of Medicine, Lund University, Lund, Sweden
| | - Lars Edvinsson
- Division of Experimental Vascular Research, Department of Clinical Sciences, Faculty of Medicine, Lund University, Lund, Sweden
| | - Hilda Ahnstedt
- Department of Neurology, McGovern Medical School at University of Texas Health Science Center at Houston, Houston, TX, USA
| | - Kajsa Arkelius
- Applied Neurovascular Research, Neurosurgery, Department of Clinical Sciences, Faculty of Medicine, Lund University, Lund, Sweden
| | - Saema Ansar
- Applied Neurovascular Research, Neurosurgery, Department of Clinical Sciences, Faculty of Medicine, Lund University, Lund, Sweden.
| |
Collapse
|
6
|
Rogala B, Khan ZA, Jackson-Boeters L, Darling MR. Investigation of the Molecular Profile of Granular Cell Tumours and Schwannomas of the Oral Cavity. Dent J (Basel) 2022; 10:dj10030038. [PMID: 35323240 PMCID: PMC8946879 DOI: 10.3390/dj10030038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Revised: 02/24/2022] [Accepted: 03/02/2022] [Indexed: 11/16/2022] Open
Abstract
Granular cell tumours (GCTs) are rare submucosal lesions, thought to develop from Schwann cells, characterised by large polygonal cells with abundant lysosomes. The objectives of this study are to investigate whether GCTs have an antigen-presenting cell (APC) phenotype or a neural crest phenotype using immunohistochemistry and to compare expression profiles with Schwannomas. Immunoreactivity to CD68, HLA-DR, CD163, CD40 and CD11c (APC phenotype) and markers of neural crest cell (NCC) origin S100, SOX10, NSE and GAP43 in 23 cases of GCTs and 10 cases of Schwannomas were evaluated. RT-qPCR was used to identify a possible NCC developmental phenotype in 6 cases of GCTs. GAP43 was identified as a new NCC marker for GCTs, and some evidence was found for an APC phenotype from CD68 and HLA-DR immunoreactivity. RT-qPCR failed to identify an NCC developmental phenotype of GCTs, likely due to technical issues.
Collapse
|
7
|
Molecular Markers of Adult Neurogenesis in the Telencephalon and Tectum of Rainbow Trout, Oncorhynchus mykiss. Int J Mol Sci 2022; 23:ijms23031188. [PMID: 35163116 PMCID: PMC8835435 DOI: 10.3390/ijms23031188] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2021] [Revised: 01/17/2022] [Accepted: 01/17/2022] [Indexed: 12/04/2022] Open
Abstract
In the brain of teleost fish, radial glial cells are the major type of astroglial cells. To answer the question as to how radial glia structures adapt to the continuous growth of the brain, which is characteristic of salmonids, it is necessary to study various types of cells (neuronal precursors, astroglial cells, and cells in a state of neuronal differentiation) in the major integrative centers of the salmon brain (telencephalon and tectum opticum), using rainbow trout, Oncorhynchus mykiss, as a model. A study of the distribution of several molecular markers in the telencephalon and tectum with the identification of neural stem/progenitor cells, neuroblasts, and radial glia was carried out on juvenile (three-year-old) O. mykiss. The presence of all of these cell types provides specific conditions for the adult neurogenesis processes in the trout telencephalon and tectum. The distribution of glutamine synthetase, a molecular marker of neural stem cells, in the trout telencephalon revealed a large population of radial glia (RG) corresponding to adult-type neural stem cells (NSCs). RG dominated the pallial region of the telencephalon, while, in the subpallial region, RG was found in the lateral and ventral zones. In the optic tectum, RG fibers were widespread and localized both in the marginal layer and in the periventricular gray layer. Doublecortin (DC) immunolabeling revealed a large population of neuroblasts formed in the postembryonic period, which is indicative of intense adult neurogenesis in the trout brain. The pallial and subpallial regions of the telencephalon contained numerous DC+ cells and their clusters. In the tectum, DC+ cells were found not only in the stratum griseum periventriculare (SGP) and longitudinal torus (TL) containing proliferating cells, but also in the layers containing differentiated neurons: the central gray layer, the periventricular gray and white layers, and the superficial white layer. A study of the localization patterns of vimentin and nestin in the trout telencephalon and tectum showed the presence of neuroepithelial neural stem cells (eNSCs) and ependymoglial cells in the periventricular matrix zones of the brain. The presence of vimentin and nestin in the functionally heterogeneous cell types of adult trout indicates new functional properties of these proteins and their heterogeneous involvement in intracellular motility and adult neurogenesis. Investigation into the later stages of neuronal development in various regions of the fish brain can substantially elucidate the major mechanisms of adult neurogenesis, but it can also contribute to understanding the patterns of formation of certain brain regions and the involvement of RG in the construction of the definite brain structure.
Collapse
|
8
|
Park HJ, Choi JH, Nam MH, Seo YK. Induced Neurodifferentiation of hBM-MSCs through Activation of the ERK/CREB Pathway via Pulsed Electromagnetic Fields and Physical Stimulation Promotes Neurogenesis in Cerebral Ischemic Models. Int J Mol Sci 2022; 23:ijms23031177. [PMID: 35163096 PMCID: PMC8835447 DOI: 10.3390/ijms23031177] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Revised: 01/14/2022] [Accepted: 01/19/2022] [Indexed: 12/22/2022] Open
Abstract
Stroke is among the leading causes of death worldwide, and stroke patients are more likely to live with permanent disabilities even after treatment. Several treatments are being developed to improve the quality of life of patients; however, these treatments still have important limitations. Our study thus sought to evaluate the neural differentiation of human bone marrow mesenchymal stem cells (hBM-MSCs) at various pulsed electromagnetic field (PEMF) frequencies. Furthermore, the effects of selected frequencies in vivo were also evaluated using a mouse ischemia stroke model. Cell proliferation decreased by 20% in the PEMF group, as demonstrated by the 3-[4,5-dimethylthiazol-2-yl]-2,5-diphenyl tetrazolium bromide (MTT) assay, and lactate dehydrogenase (LDH) secretion increased by approximately 10% in an LDH release assay. Fluorescence-activated cell sorting (FACS) analysis demonstrated that CD73 and CD105 were downregulated in the PEMF group at 60 Hz. Moreover, microtubule-associated protein 2 (MAP-2) and neurofilament light chain (NF-L) were upregulated in cell cultures at 60 and 75 Hz. To assess the effects of PEMF in vivo, cerebral ischemia mice were exposed to a PEMF at 60 Hz. Neural-related proteins were significantly upregulated in the PEMF groups compared with the control and cell group. Upon conducting rotarod tests, the cell/PEMF group exhibited significant differences in motor coordination at 13 days post-treatment when compared with the control and stem-cell-treated group. Furthermore, the cell and cell/PEMF group exhibited a significant reduction in the expression of matrix metalloproteinase-9 (MMP-9), tumor necrosis factor-alpha (TNF-α) and interferon-gamma (IFN-γ) in the induced ischemic area compared with the control. Collectively, our findings demonstrated that PEMFs at 60 and 75 Hz could stimulate hBM-MSCs neural differentiation in vitro, in addition to promoting neurogenesis to enhance the functional recovery process by reducing the post-stroke inflammatory reaction.
Collapse
Affiliation(s)
| | | | | | - Young-Kwon Seo
- Correspondence: ; Tel.: +82-(31)-9615154; Fax: +82-(31)-9615521
| |
Collapse
|
9
|
Takahashi E, Allan N, Peres R, Ortug A, van der Kouwe AJW, Valli B, Ethier E, Levman J, Baumer N, Tsujimura K, Vargas-Maya NI, McCracken TA, Lee R, Maunakea AK. Integration of structural MRI and epigenetic analyses hint at linked cellular defects of the subventricular zone and insular cortex in autism: Findings from a case study. Front Neurosci 2022; 16:1023665. [PMID: 36817099 PMCID: PMC9935943 DOI: 10.3389/fnins.2022.1023665] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2022] [Accepted: 12/20/2022] [Indexed: 02/05/2023] Open
Abstract
Introduction Autism Spectrum Disorder (ASD) is a neurodevelopmental disorder characterized by deficits in social interaction, communication and repetitive, restrictive behaviors, features supported by cortical activity. Given the importance of the subventricular zone (SVZ) of the lateral ventrical to cortical development, we compared molecular, cellular, and structural differences in the SVZ and linked cortical regions in specimens of ASD cases and sex and age-matched unaffected brain. Methods We used magnetic resonance imaging (MRI) and diffusion tractography on ex vivo postmortem brain samples, which we further analyzed by Whole Genome Bisulfite Sequencing (WGBS), Flow Cytometry, and RT qPCR. Results Through MRI, we observed decreased tractography pathways from the dorsal SVZ, increased pathways from the posterior ventral SVZ to the insular cortex, and variable cortical thickness within the insular cortex in ASD diagnosed case relative to unaffected controls. Long-range tractography pathways from and to the insula were also reduced in the ASD case. FACS-based cell sorting revealed an increased population of proliferating cells in the SVZ of ASD case relative to the unaffected control. Targeted qPCR assays of SVZ tissue demonstrated significantly reduced expression levels of genes involved in differentiation and migration of neurons in ASD relative to the control counterpart. Finally, using genome-wide DNA methylation analyses, we identified 19 genes relevant to neurological development, function, and disease, 7 of which have not previously been described in ASD, that were significantly differentially methylated in autistic SVZ and insula specimens. Conclusion These findings suggest a hypothesis that epigenetic changes during neurodevelopment alter the trajectory of proliferation, migration, and differentiation in the SVZ, impacting cortical structure and function and resulting in ASD phenotypes.
Collapse
Affiliation(s)
- Emi Takahashi
- Department of Radiology, Athinoula A. Martinos Center for Biomedical Research, Massachusetts General Hospital and Harvard Medical School, Charlestown, MA, United States.,Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, United States
| | - Nina Allan
- Epigenomics Research Program, Department of Anatomy, Institute for Biogenesis Research, Biochemistry and Physiology, John A. Burns School of Medicine, University of Hawai'i at Mānoa, Honolulu, HI, United States
| | - Rafael Peres
- Epigenomics Research Program, Department of Anatomy, Institute for Biogenesis Research, Biochemistry and Physiology, John A. Burns School of Medicine, University of Hawai'i at Mānoa, Honolulu, HI, United States
| | - Alpen Ortug
- Department of Radiology, Athinoula A. Martinos Center for Biomedical Research, Massachusetts General Hospital and Harvard Medical School, Charlestown, MA, United States.,Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, United States
| | - Andre J W van der Kouwe
- Department of Radiology, Athinoula A. Martinos Center for Biomedical Research, Massachusetts General Hospital and Harvard Medical School, Charlestown, MA, United States.,Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, United States
| | - Briana Valli
- Department of Behavioral Neuroscience, Northeastern University, Boston, MA, United States
| | - Elizabeth Ethier
- Department of Behavioral Neuroscience, Northeastern University, Boston, MA, United States
| | - Jacob Levman
- Department of Radiology, Athinoula A. Martinos Center for Biomedical Research, Massachusetts General Hospital and Harvard Medical School, Charlestown, MA, United States.,Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, United States.,Department of Mathematics, Statistics and Computer Science, St. Francis Xavier University, Antigonish, NS, Canada
| | - Nicole Baumer
- Department of Neurology, Boston Children's Hospital and Harvard Medical School, Boston, MA, United States
| | - Keita Tsujimura
- Department of Radiology, Athinoula A. Martinos Center for Biomedical Research, Massachusetts General Hospital and Harvard Medical School, Charlestown, MA, United States.,Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, United States
| | - Nauru Idalia Vargas-Maya
- Epigenomics Research Program, Department of Anatomy, Institute for Biogenesis Research, Biochemistry and Physiology, John A. Burns School of Medicine, University of Hawai'i at Mānoa, Honolulu, HI, United States
| | - Trevor A McCracken
- Epigenomics Research Program, Department of Anatomy, Institute for Biogenesis Research, Biochemistry and Physiology, John A. Burns School of Medicine, University of Hawai'i at Mānoa, Honolulu, HI, United States
| | - Rosa Lee
- Epigenomics Research Program, Department of Anatomy, Institute for Biogenesis Research, Biochemistry and Physiology, John A. Burns School of Medicine, University of Hawai'i at Mānoa, Honolulu, HI, United States
| | - Alika K Maunakea
- Epigenomics Research Program, Department of Anatomy, Institute for Biogenesis Research, Biochemistry and Physiology, John A. Burns School of Medicine, University of Hawai'i at Mānoa, Honolulu, HI, United States
| |
Collapse
|
10
|
Mannino G, Cristaldi M, Giurdanella G, Perrotta RE, Lo Furno D, Giuffrida R, Rusciano D. ARPE-19 conditioned medium promotes neural differentiation of adipose-derived mesenchymal stem cells. World J Stem Cells 2021; 13:1783-1796. [PMID: 34909123 PMCID: PMC8641022 DOI: 10.4252/wjsc.v13.i11.1783] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/05/2021] [Revised: 06/25/2021] [Accepted: 10/15/2021] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Adipose-derived stem cells (ASCs) have been increasingly explored for cell-based medicine because of their numerous advantages in terms of easy availability, high proliferation rate, multipotent differentiation ability and low immunogenicity. In this respect, they have been widely investigated in the last two decades to develop therapeutic strategies for a variety of human pathologies including eye disease. In ocular diseases involving the retina, various cell types may be affected, such as Müller cells, astrocytes, photoreceptors and retinal pigment epithelium (RPE), which plays a fundamental role in the homeostasis of retinal tissue, by secreting a variety of growth factors that support retinal cells.
AIM To test ASC neural differentiation using conditioned medium (CM) from an RPE cell line (ARPE-19).
METHODS ASCs were isolated from adipose tissue, harvested from the subcutaneous region of healthy donors undergoing liposuction procedures. Four ASC culture conditions were investigated: ASCs cultured in basal Dulbecco's Modified Eagle Medium (DMEM); ASCs cultured in serum-free DMEM; ASCs cultured in serum-free DMEM/F12; and ASCs cultured in a CM from ARPE-19, a spontaneously arising cell line with a normal karyotype derived from a human RPE. Cell proliferation rate and viability were assessed by crystal violet and MTT assays at 1, 4 and 8 d of culture. At the same time points, ASC neural differentiation was evaluated by immunocytochemistry and western blot analysis for typical neuronal and glial markers: Nestin, neuronal specific enolase (NSE), protein gene product (PGP) 9.5, and glial fibrillary acidic protein (GFAP).
RESULTS Depending on the culture medium, ASC proliferation rate and viability showed some significant differences. Overall, less dense populations were observed in serum-free cultures, except for ASCs cultured in ARPE-19 serum-free CM. Moreover, a different cell morphology was seen in these cultures after 8 d of treatment, with more elongated cells, often showing cytoplasmic ramifications. Immunofluorescence results and western blot analysis were indicative of ASC neural differentiation. In fact, basal levels of neural markers detected under control conditions significantly increased when cells were cultured in ARPE-19 CM. Specifically, neural marker overexpression was more marked at 8 d. The most evident increase was observed for NSE and GFAP, a modest increase was observed for nestin, and less relevant changes were observed for PGP9.5.
CONCLUSION The presence of growth factors produced by ARPE-19 cells in tissue culture induces ASCs to express neural differentiation markers typical of the neuronal and glial cells of the retina.
Collapse
Affiliation(s)
- Giuliana Mannino
- Department of Biomedical and Biotechnological Sciences, University of Catania, Catania 95123, CT, Italy
| | | | - Giovanni Giurdanella
- Department of Biomedical and Biotechnological Sciences, University of Catania, Catania 95123, CT, Italy
| | - Rosario Emanuele Perrotta
- Department of General Surgery and Medical-Surgery Specialties, University of Catania, Catania 95100, CT, Italy
| | - Debora Lo Furno
- Department of Biomedical and Biotechnological Sciences, University of Catania, Catania 95123, CT, Italy
| | - Rosario Giuffrida
- Department of Biomedical and Biotechnological Sciences, University of Catania, Catania 95123, CT, Italy
| | - Dario Rusciano
- Research Center, SOOFT-Italia S.p.A., Catania 95123, CT, Italy
| |
Collapse
|
11
|
Thomson E, Dawson R, H’ng CH, Adikusuma F, Piltz S, Thomas PQ. The Nestin neural enhancer is essential for normal levels of endogenous Nestin in neuroprogenitors but is not required for embryo development. PLoS One 2021; 16:e0258538. [PMID: 34739481 PMCID: PMC8570527 DOI: 10.1371/journal.pone.0258538] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Accepted: 09/29/2021] [Indexed: 11/23/2022] Open
Abstract
Enhancers are vitally important during embryonic development to control the spatial and temporal expression of genes. Recently, large scale genome projects have identified a vast number of putative developmental regulatory elements. However, the proportion of these that have been functionally assessed is relatively low. While enhancers have traditionally been studied using reporter assays, this approach does not characterise their contribution to endogenous gene expression. We have studied the murine Nestin (Nes) intron 2 enhancer, which is widely used to direct exogenous gene expression within neural progenitor cells in cultured cells and in vivo. We generated CRISPR deletions of the enhancer region in mice and assessed their impact on Nes expression during embryonic development. Loss of the Nes neural enhancer significantly reduced Nes expression in the developing CNS by as much as 82%. By assessing NES protein localization, we also show that this enhancer region contains repressor element(s) that inhibit Nes expression within the vasculature. Previous reports have stated that Nes is an essential gene, and its loss causes embryonic lethality. We also generated 2 independent Nes null lines and show that both develop without any obvious phenotypic effects. Finally, through crossing of null and enhancer deletion mice we provide evidence of trans-chromosomal interaction of the Nes enhancer and promoter.
Collapse
Affiliation(s)
- Ella Thomson
- School of Biological Sciences, University of Adelaide, Adelaide, SA, Australia
| | - Ruby Dawson
- School of Biological Sciences, University of Adelaide, Adelaide, SA, Australia
| | - Chee Ho H’ng
- School of Biological Sciences, University of Adelaide, Adelaide, SA, Australia
| | - Fatwa Adikusuma
- School of Biological Sciences, University of Adelaide, Adelaide, SA, Australia
- School of Biomedicine, University of Adelaide, Adelaide, SA, Australia
- South Australian Genome Editing Facility, South Australian Health & Medical Research Institute, Adelaide, SA, Australia
| | - Sandra Piltz
- School of Biological Sciences, University of Adelaide, Adelaide, SA, Australia
- South Australian Genome Editing Facility, South Australian Health & Medical Research Institute, Adelaide, SA, Australia
| | - Paul Q. Thomas
- School of Biological Sciences, University of Adelaide, Adelaide, SA, Australia
- School of Biomedicine, University of Adelaide, Adelaide, SA, Australia
- South Australian Genome Editing Facility, South Australian Health & Medical Research Institute, Adelaide, SA, Australia
- Genome Editing Program, South Australian Health & Medical Research Institute, Adelaide, SA, Australia
- * E-mail:
| |
Collapse
|
12
|
Patil K, Khan FB, Akhtar S, Ahmad A, Uddin S. The plasticity of pancreatic cancer stem cells: implications in therapeutic resistance. Cancer Metastasis Rev 2021; 40:691-720. [PMID: 34453639 PMCID: PMC8556195 DOI: 10.1007/s10555-021-09979-x] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Accepted: 07/12/2021] [Indexed: 02/07/2023]
Abstract
The ever-growing perception of cancer stem cells (CSCs) as a plastic state rather than a hardwired defined entity has evolved our understanding of the functional and biological plasticity of these elusive components in malignancies. Pancreatic cancer (PC), based on its biological features and clinical evolution, is a prototypical example of a CSC-driven disease. Since the discovery of pancreatic CSCs (PCSCs) in 2007, evidence has unraveled their control over many facets of the natural history of PC, including primary tumor growth, metastatic progression, disease recurrence, and acquired drug resistance. Consequently, the current near-ubiquitous treatment regimens for PC using aggressive cytotoxic agents, aimed at ‘‘tumor debulking’’ rather than eradication of CSCs, have proven ineffective in providing clinically convincing improvements in patients with this dreadful disease. Herein, we review the key hallmarks as well as the intrinsic and extrinsic resistance mechanisms of CSCs that mediate treatment failure in PC and enlist the potential CSC-targeting ‘natural agents’ that are gaining popularity in recent years. A better understanding of the molecular and functional landscape of PCSC-intrinsic evasion of chemotherapeutic drugs offers a facile opportunity for treating PC, an intractable cancer with a grim prognosis and in dire need of effective therapeutic advances.
Collapse
Affiliation(s)
- Kalyani Patil
- Translational Research Institute, Academic Health System, Hamad Medical Corporation, P.O. Box 3050, Doha, Qatar
| | - Farheen B Khan
- Department of Biology, College of Science, The United Arab Emirates University, PO Box 15551, Al Ain, United Arab Emirates
| | - Sabah Akhtar
- Translational Research Institute, Academic Health System, Hamad Medical Corporation, P.O. Box 3050, Doha, Qatar
| | - Aamir Ahmad
- Translational Research Institute, Academic Health System, Hamad Medical Corporation, P.O. Box 3050, Doha, Qatar.,Dermatology Institute, Academic Health System, Hamad Medical Corporation, Doha, Qatar
| | - Shahab Uddin
- Translational Research Institute, Academic Health System, Hamad Medical Corporation, P.O. Box 3050, Doha, Qatar. .,Dermatology Institute, Academic Health System, Hamad Medical Corporation, Doha, Qatar. .,Laboratory Animal Research Center, Qatar University, Doha, Qatar.
| |
Collapse
|
13
|
Smith RJP, Faroni A, Barrow JR, Soul J, Reid AJ. The angiogenic potential of CD271+ human adipose tissue-derived mesenchymal stem cells. Stem Cell Res Ther 2021; 12:160. [PMID: 33653407 PMCID: PMC7927269 DOI: 10.1186/s13287-021-02177-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Accepted: 01/19/2021] [Indexed: 01/07/2023] Open
Abstract
BACKGROUND Autologous fat grafting is often a crucial aspect of reconstructive and aesthetic surgeries, yet poor graft retention is a major issue with this technique. Enriching fat grafts with adipose tissue-derived mesenchymal stem cells (AD-MSCs) improves graft survival-however, AD-MSCs represent a heterogeneous population. Selection of subpopulations of AD-MSCs would allow the targeting of specific AD-MSCs that may benefit fat graft survival more than the general AD-MSC population. METHODS Human AD-MSCs were selected for the surface marker CD271 using magnetic-activated cell sorting and compared to the CD271 negative phenotype. These subpopulations were analysed for gene expression using Real-Time qPCR and RNA sequencing; surface marker characteristics using immunostaining; ability to form tubules when cultured with endothelial cells; and gene and protein expression of key angiogenic mediators when cultured with ex-vivo adipose tissue. RESULTS Human AD-MSCs with the surface marker CD271 express angiogenic genes at higher levels, and inflammatory genes at lower levels, than the CD271- AD-MSC population. A greater proportion of CD271+ AD-MSCs also possess the typical complement of stem cell surface markers and are more likely to promote effective neoangiogenesis, compared to CD271- AD-MSCs. CONCLUSION Enriching grafts with the CD271+ AD-MSC subpopulation holds potential for the improvement of reconstructive and aesthetic surgeries involving adipose tissue.
Collapse
Affiliation(s)
- Richard J P Smith
- Blond McIndoe Laboratories, Division of Cell Matrix Biology and Regenerative Medicine, School of Biological Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester Academic Health Science Centre, Manchester, M13 9PT, UK
| | - Alessandro Faroni
- Blond McIndoe Laboratories, Division of Cell Matrix Biology and Regenerative Medicine, School of Biological Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester Academic Health Science Centre, Manchester, M13 9PT, UK
| | - James R Barrow
- Blond McIndoe Laboratories, Division of Cell Matrix Biology and Regenerative Medicine, School of Biological Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester Academic Health Science Centre, Manchester, M13 9PT, UK
| | - Jamie Soul
- Biosciences Institute, Faculty of Medical Sciences, Newcastle University, Newcastle Upon Tyne, UK
| | - Adam J Reid
- Blond McIndoe Laboratories, Division of Cell Matrix Biology and Regenerative Medicine, School of Biological Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester Academic Health Science Centre, Manchester, M13 9PT, UK. .,Department of Plastic Surgery & Burns, Wythenshawe Hospital, Manchester University NHS Foundation Trust, Manchester Academic Health Science Centre, Manchester, UK.
| |
Collapse
|
14
|
Aglan SA, Elsammak M, Elsammak O, El-Bakoury EA, Elsheredy HG, Ahmed YS, Sultan MH, Awad AM. Evaluation of serum Nestin and HOTAIR rs12826786 C>T polymorphism as screening tools for breast cancer in Egyptian women. J Med Biochem 2021; 40:17-25. [PMID: 33584136 PMCID: PMC7857851 DOI: 10.5937/jomb0-25295] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2020] [Accepted: 05/27/2020] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND Nestin is a neural stem cell protein that plays an important role in cancer stem cells (CSC) development and proliferation. It has been identified as a marker for newly formed endothelial cells and was shown to be preferentially expressed in basal and myoepithelial cells of the mammary gland. HOTAIR is long intergenic non-coding (linRNA) associated with tumorigenesis through promotion of epithelial-mesenchymal transition (EMT) and stemness as well. HOTAIR gene contains a functioning single nucleotide polymorphic site rs12826786 C>T that has been associated with several cancer types. METHODS We evaluated serum Nestin and the HOTAIR rs12826786 C>T polymorphism in healthy Egyptian women and those with breast cancer as a possible screening tool to identify patients with breast cancer. Also, we tested the possible association of the two markers with each other and the aggressiveness of the disease. RESULTS Patients with breast cancer had a median (Min-Max) of serum Nestin 31.3 (6.7-167.3 pg/mL), while control subjects had a median (Min-Max) of serum Nestin 42.3 (25.7-315.95) pg/mL. The best cut-off value for serum Nestin to differentiate normal subjects and patients with breast cancer was 39.9 pg/mL. This cut-off value had a diagnostic sensitivity of 84.8% and specificity of 65.1%. There was a significant difference in the distribution of different alleles in patients with breast cancer than normal subjects (P=0.039 Exact Fisher test). The breast cancer patients group had 23.9% CC, 52.1% CT, and 23.9% TT genotypes, respectively, while the control group had 46.9% CC, 42.8% CT, and 10.2% TT, respectively. CONCLUSIONS A significantly low serum Nestin below 39.9 pg/mL and a higher percentage of the T/T homozygous variant allele of HOTAIR rs12826786 C>T were found in Egyptian patients with breast cancer. We suggest that the reported cut-off value of serum Nestin and the presence of C/T polymorphism can be used to assess the risk of females for developing breast cancer and might be of potential benefit in screening the disease. Larger studies in different ethnic groups are needed to confirm our findings.
Collapse
Affiliation(s)
- Sarah A. Aglan
- Alexandria University, Medical Research Institute, Department of Chemical Pathology, Egypt
| | - Mohamed Elsammak
- Alexandria University, Medical Research Institute, Department of Chemical Pathology, Egypt
| | | | - Eman A. El-Bakoury
- Alexandria University, Medical Research Institute, Department of Radio-diagnosis, Egypt
| | - Heba G. Elsheredy
- Alexandria University, Medical Research Institute, Department of Cancer Management and Research, Alexandria, Egypt
| | - Yasser S. Ahmed
- Alexandria University, Medical Research Institute, Department of Experimental and Clinical Surgery, Alexandria, Egypt
| | - Mohamed H. Sultan
- Alexandria University, Medical Research Institute, Department of Experimental and Clinical Surgery, Alexandria, Egypt
| | - Ahmed M. Awad
- Alexandria University, Medical Research Institute, Department of Chemical Pathology, Egypt
| |
Collapse
|
15
|
Hogberg HT, de Cássia da Silveira E Sá R, Kleensang A, Bouhifd M, Cemiloglu Ulker O, Smirnova L, Behl M, Maertens A, Zhao L, Hartung T. Organophosphorus flame retardants are developmental neurotoxicants in a rat primary brainsphere in vitro model. Arch Toxicol 2021; 95:207-228. [PMID: 33078273 PMCID: PMC7811506 DOI: 10.1007/s00204-020-02903-2] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2020] [Accepted: 09/02/2020] [Indexed: 12/26/2022]
Abstract
Due to regulatory bans and voluntary substitutions, halogenated polybrominated diphenyl ether (PBDE) flame retardants (FR) are increasingly substituted by mainly organophosphorus FR (OPFR). Leveraging a 3D rat primary neural organotypic in vitro model (rat brainsphere), we compare developmental neurotoxic effects of BDE-47-the most abundant PBDE congener-with four OPFR (isopropylated phenyl phosphate-IPP, triphenyl phosphate-TPHP, isodecyl diphenyl phosphate-IDDP, and tricresyl phosphate (also known as trimethyl phenyl phosphate)-TMPP). Employing mass spectroscopy-based metabolomics and transcriptomics, we observe at similar human-relevant non-cytotoxic concentrations (0.1-5 µM) stronger developmental neurotoxic effects by OPFR. This includes toxicity to neurons in the low µM range; all FR decrease the neurotransmitters glutamate and GABA (except BDE-47 and TPHP). Furthermore, n-acetyl aspartate (NAA), considered a neurologic diagnostic molecule, was decreased by all OPFR. At similar concentrations, the FR currently in use decreased plasma membrane dopamine active transporter expression, while BDE-47 did not. Several findings suggest astrogliosis induced by the OPFR, but not BDE-47. At the 5 µM concentrations, the OPFR more than BDE-47 interfered with myelination. An increase of cytokine gene and receptor expressions suggests that exposure to OPFR may induce an inflammatory response. Pathway/category overrepresentation shows disruption in 1) transmission of action potentials, cell-cell signaling, synaptic transmission, receptor signaling, (2) immune response, inflammation, defense response, (3) cell cycle and (4) lipids metabolism and transportation. Taken together, this appears to be a case of regretful substitution with substances not less developmentally neurotoxic in a primary rat 3D model.
Collapse
Affiliation(s)
- Helena T Hogberg
- Center for Alternatives To Animal Testing (CAAT), Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA.
| | - Rita de Cássia da Silveira E Sá
- Center for Alternatives To Animal Testing (CAAT), Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
- Department of Physiology and Pathology, Federal University of Paraíba, João Pessoa, Brazil
| | - Andre Kleensang
- Center for Alternatives To Animal Testing (CAAT), Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - Mounir Bouhifd
- Center for Alternatives To Animal Testing (CAAT), Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - Ozge Cemiloglu Ulker
- Center for Alternatives To Animal Testing (CAAT), Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
- Department of Toxicology, Faculty of Pharmacy, Ankara University, Ankara, Turkey
| | - Lena Smirnova
- Center for Alternatives To Animal Testing (CAAT), Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - Mamta Behl
- National Toxicology Program, National Institute of Environmental Health Sciences, Research Triangle Park, Durham, NC, USA
| | - Alexandra Maertens
- Center for Alternatives To Animal Testing (CAAT), Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - Liang Zhao
- Center for Alternatives To Animal Testing (CAAT), Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
- Bloomberg~Kimmel Institute for Cancer Immunotherapy, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Thomas Hartung
- Center for Alternatives To Animal Testing (CAAT), Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
- CAAT-Europe, University of Konstanz, Konstanz, Germany
| |
Collapse
|
16
|
Ma Q, Cai M, Shang JW, Yang J, Gu XY, Liu WB, Yang Q. Glial cell induced neural differentiation of bone marrow stromal cells. Open Med (Wars) 2020; 15:954-961. [PMID: 33336053 PMCID: PMC7712328 DOI: 10.1515/med-2020-0229] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2020] [Revised: 08/23/2020] [Accepted: 08/25/2020] [Indexed: 11/15/2022] Open
Abstract
Background Bone marrow stromal cells (BMSCs) have an important application prospect in the field of cell therapy for various neurodegenerative diseases, and inducing factors that regulate BMSC differentiation are proposed as a promising therapeutic strategy. In this study, we explored the effect of glial cell-derived neurotrophic factor (GDNF) on the course of BMSC differentiation. Methods BMSCs were isolated from rat bone marrow and induced by GDNF. The effects of GDNF on BMSC viability and proliferation were verified by cell counting kit-8, MTT, bromodeoxyuridine, and flow cytometry assays. Neuronal differentiation from BMSCs was detected by quantitative real-time polymerase chain reaction and immunofluorescence via measuring the expression of several neural specific markers. Results Compared to untreated BMSCs, GDNF induced the differentiation of BMSCs into neuron-like cells and enhanced the expression levels of neuronal markers including nestin and NCAM. Moreover, the expression of SCF was suppressed by GDNF stimulation. Conclusion GDNF could elevate the differentiation of BMSCs into neuron-like cells and could be considered as an effective candidate cell for future neuroscience research.
Collapse
Affiliation(s)
- Qiang Ma
- School of Life Science and Biotechnology, Dalian University of Technology, No. 2 Linggong Road, Dalian 116023, Liaoning Province, China.,Department of Neurology, Affiliated Zhongshan Hospital of Dalian University, Dalian 116001, Liaoning Province, China
| | - Ming Cai
- Department of Neurology, Affiliated Zhongshan Hospital of Dalian University, Dalian 116001, Liaoning Province, China
| | - Jing-Wei Shang
- Department of Neurology, Affiliated Zhongshan Hospital of Dalian University, Dalian 116001, Liaoning Province, China
| | - Jun Yang
- School of Life Science and Biotechnology, Dalian University of Technology, No. 2 Linggong Road, Dalian 116023, Liaoning Province, China
| | - Xin-Yi Gu
- Department of Neurology, Affiliated Zhongshan Hospital of Dalian University, Dalian 116001, Liaoning Province, China
| | - Wen-Bo Liu
- Department of Neurology, Affiliated Zhongshan Hospital of Dalian University, Dalian 116001, Liaoning Province, China
| | - Qing Yang
- School of Life Science and Biotechnology, Dalian University of Technology, No. 2 Linggong Road, Dalian 116023, Liaoning Province, China
| |
Collapse
|
17
|
McPheeters MT, Blackburn BJ, Dupps WJ, Rollins AM, Jenkins MW. Genetically Encoded Calcium Indicators for In Situ Functional Studies of Corneal Nerves. Invest Ophthalmol Vis Sci 2020; 61:10. [PMID: 33151279 PMCID: PMC7645214 DOI: 10.1167/iovs.61.13.10] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Accepted: 09/28/2020] [Indexed: 11/27/2022] Open
Abstract
Purpose Millions of people suffer from diseases that involve corneal nerve dysfunction, caused by various conditions, including dry eye syndrome, neurotrophic keratopathy, diabetes, herpes simplex, glaucoma, and Alzheimer's disease. The morphology of corneal nerves has been studied extensively. However, corneal nerve function has only been studied in a limited fashion owing to a lack of tools. Here, we present a new system for studying corneal nerve function. Methods Optical imaging was performed on the cornea of excised murine globes taken from a model animal expressing a genetically encoded calcium indicator, GCaMP6f, to record calcium transients. A custom perfusion and imaging chamber for ex vivo murine globes was designed to maintain and stabilize the cornea, while allowing the introduction of chemical stimulation during imaging. Results Imaging of calcium signals in the ex vivo murine cornea was demonstrated. Strong calcium signals with minimal photobleaching were observed in experiments lasting up to 10 minutes. Concentrated potassium and lidocaine solutions both modulated corneal nerve activity. Similar responses were observed in the same neurons across multiple chemical stimulations, suggesting the feasibility of using chemical stimulations to test the response of the corneal nerves. Conclusions Our studies suggest that this tool will be of great use for studying functional changes to corneal nerves in response to disease and ocular procedures. This process will enable preclinical testing of new ocular procedures to minimize damage to corneal innervation and therapies for diminished neural function.
Collapse
Affiliation(s)
- Matthew T McPheeters
- Department of Biomedical Engineering, Case Western Reserve University, Cleveland, Ohio, United States
| | - Brecken J Blackburn
- Department of Biomedical Engineering, Case Western Reserve University, Cleveland, Ohio, United States
| | - William J Dupps
- Department of Biomedical Engineering, Case Western Reserve University, Cleveland, Ohio, United States
- Cole Eye Institute, Cleveland Clinic Foundation, Cleveland, Ohio, United States
- Department of Biomedical Engineering, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio, United States
| | - Andrew M Rollins
- Department of Biomedical Engineering, Case Western Reserve University, Cleveland, Ohio, United States
| | - Michael W Jenkins
- Department of Biomedical Engineering, Case Western Reserve University, Cleveland, Ohio, United States
- Department of Pediatrics, Case Western Reserve University, Cleveland, Ohio, United States
| |
Collapse
|
18
|
De Gioia R, Citterio G, Abati E, Nizzardo M, Bresolin N, Comi GP, Corti S, Rizzo F. Animal Models of CMT2A: State-of-art and Therapeutic Implications. Mol Neurobiol 2020; 57:5121-5129. [PMID: 32856204 PMCID: PMC7541381 DOI: 10.1007/s12035-020-02081-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Accepted: 08/19/2020] [Indexed: 01/19/2023]
Abstract
Charcot-Marie-Tooth disease type 2A (CMT2A), arising from mitofusin 2 (MFN2) gene mutations, is the most common inherited axonal neuropathy affecting motor and sensory neurons. The cellular and molecular mechanisms by which MFN2 mutations determine neuronal degeneration are largely unclear. No effective treatment exists for CMT2A, which has a high degree of genetic/phenotypic heterogeneity. The identification of mutations in MFN2 has allowed the generation of diverse transgenic animal models, but to date, their ability to recapitulate the CMT2A phenotype is limited, precluding elucidation of its pathogenesis and discovery of therapeutic strategies. This review will critically present recent progress in in vivo CMT2A disease modeling, discoveries, drawbacks and limitations, current challenges, and key reflections to advance the field towards developing effective therapies for these patients.
Collapse
Affiliation(s)
- Roberta De Gioia
- Neurology Unit, IRCCS Foundation Ca' Granda Ospedale Maggiore Policlinico, Via Francesco Sforza 35, 20122, Milan, Italy
| | - Gaia Citterio
- Dino Ferrari Centre, Neuroscience Section, Department of Pathophysiology and Transplantation (DEPT), University of Milan, Milan, Italy
| | - Elena Abati
- Dino Ferrari Centre, Neuroscience Section, Department of Pathophysiology and Transplantation (DEPT), University of Milan, Milan, Italy
| | - Monica Nizzardo
- Neurology Unit, IRCCS Foundation Ca' Granda Ospedale Maggiore Policlinico, Via Francesco Sforza 35, 20122, Milan, Italy.,Dino Ferrari Centre, Neuroscience Section, Department of Pathophysiology and Transplantation (DEPT), University of Milan, Milan, Italy
| | - Nereo Bresolin
- Neurology Unit, IRCCS Foundation Ca' Granda Ospedale Maggiore Policlinico, Via Francesco Sforza 35, 20122, Milan, Italy.,Dino Ferrari Centre, Neuroscience Section, Department of Pathophysiology and Transplantation (DEPT), University of Milan, Milan, Italy
| | - Giacomo Pietro Comi
- Neurology Unit, IRCCS Foundation Ca' Granda Ospedale Maggiore Policlinico, Via Francesco Sforza 35, 20122, Milan, Italy.,Dino Ferrari Centre, Neuroscience Section, Department of Pathophysiology and Transplantation (DEPT), University of Milan, Milan, Italy
| | - Stefania Corti
- Neurology Unit, IRCCS Foundation Ca' Granda Ospedale Maggiore Policlinico, Via Francesco Sforza 35, 20122, Milan, Italy.,Dino Ferrari Centre, Neuroscience Section, Department of Pathophysiology and Transplantation (DEPT), University of Milan, Milan, Italy
| | - Federica Rizzo
- Neurology Unit, IRCCS Foundation Ca' Granda Ospedale Maggiore Policlinico, Via Francesco Sforza 35, 20122, Milan, Italy. .,Dino Ferrari Centre, Neuroscience Section, Department of Pathophysiology and Transplantation (DEPT), University of Milan, Milan, Italy.
| |
Collapse
|
19
|
Riew TR, Kim S, Jin X, Kim HL, Yoo K, Seo SB, Lee JH, Lee MY. Induction of BIS Protein During Astroglial and Fibrotic Scar Formation After Mitochondrial Toxin-Mediated Neuronal Injury in Rats. Mol Neurobiol 2020; 57:3846-3859. [PMID: 32607834 DOI: 10.1007/s12035-020-02000-6] [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: 03/19/2020] [Accepted: 06/22/2020] [Indexed: 10/24/2022]
Abstract
B cell leukemia/lymphoma-2 (Bcl-2)-interacting death suppressor (BIS), also identified as Bcl-2-associated athanogene 3 (BAG3), has been reported to be upregulated in reactive astrocytes after brain insults. The present study was designed to further substantiate the involvement of BIS protein in the astroglial reaction in the striatum of rats treated with the mitochondrial toxin, 3-nitropropionic acid. Weak constitutive immunoreactivity for BIS was observed in astrocytes in the control striatum, whereas its expression was upregulated, along with that of nestin, in the lesioned striatum. In the lesion core, where astrocytes are virtually absent, BIS/nestin double-labeled cells were associated with the vasculature and were identified as perivascular adventitial fibroblasts. By contrast, BIS/nestin double-labeled cells in the perilesional area were reactive astrocytes, which were confined to the border zone contributing to the formation of the astroglial scar; this was evident 3 days post-lesion and increased thereafter progressively throughout the 28-day experimental period. At the ultrastructural level, BIS protein was diffusely localized throughout the cytoplasm within the stained cells. Collectively, our results demonstrate the phenotypic and functional heterogeneity of BIS-positive cells in the lesioned striatum, suggesting the involvement of BIS in the formation of astroglial scar and its potential role in the development of fibrotic scar after brain insults.
Collapse
Affiliation(s)
- Tae-Ryong Riew
- Department of Anatomy, Catholic Neuroscience Institute, College of Medicine, The Catholic University of Korea, 222 Banpo-daero, Seocho-gu, Seoul, 06591, Republic of Korea
| | - Soojin Kim
- Department of Anatomy, Catholic Neuroscience Institute, College of Medicine, The Catholic University of Korea, 222 Banpo-daero, Seocho-gu, Seoul, 06591, Republic of Korea
| | - Xuyan Jin
- Department of Anatomy, Catholic Neuroscience Institute, College of Medicine, The Catholic University of Korea, 222 Banpo-daero, Seocho-gu, Seoul, 06591, Republic of Korea.,Department of Biomedicine and Health Sciences, College of Medicine, The Catholic University of Korea, Seoul, 06591, Republic of Korea
| | - Hong Lim Kim
- Integrative Research Support Center, Laboratory of Electron Microscope, College of Medicine, The Catholic University of Korea, Seoul, 06591, Republic of Korea
| | - Kyunghyun Yoo
- Department of Biomedicine and Health Sciences, College of Medicine, The Catholic University of Korea, Seoul, 06591, Republic of Korea.,Department of Biochemistry, College of Medicine, The Catholic University of Korea, 222 Banpo-daero, Seocho-gu, Seoul, 06591, Republic of Korea.,The Institute for Aging and Metabolic Diseases, College of Medicine, The Catholic University of Korea, Seoul, 06591, Republic of Korea
| | - Sung Bin Seo
- Department of Biochemistry, College of Medicine, The Catholic University of Korea, 222 Banpo-daero, Seocho-gu, Seoul, 06591, Republic of Korea.,The Institute for Aging and Metabolic Diseases, College of Medicine, The Catholic University of Korea, Seoul, 06591, Republic of Korea
| | - Jeong-Hwa Lee
- Department of Biomedicine and Health Sciences, College of Medicine, The Catholic University of Korea, Seoul, 06591, Republic of Korea. .,Department of Biochemistry, College of Medicine, The Catholic University of Korea, 222 Banpo-daero, Seocho-gu, Seoul, 06591, Republic of Korea. .,The Institute for Aging and Metabolic Diseases, College of Medicine, The Catholic University of Korea, Seoul, 06591, Republic of Korea.
| | - Mun-Yong Lee
- Department of Anatomy, Catholic Neuroscience Institute, College of Medicine, The Catholic University of Korea, 222 Banpo-daero, Seocho-gu, Seoul, 06591, Republic of Korea. .,Department of Biomedicine and Health Sciences, College of Medicine, The Catholic University of Korea, Seoul, 06591, Republic of Korea.
| |
Collapse
|
20
|
Locatelli M, Zoja C, Zanchi C, Corna D, Villa S, Bolognini S, Novelli R, Perico L, Remuzzi G, Benigni A, Cassis P. Manipulating Sirtuin 3 pathway ameliorates renal damage in experimental diabetes. Sci Rep 2020; 10:8418. [PMID: 32439965 PMCID: PMC7242337 DOI: 10.1038/s41598-020-65423-0] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2020] [Accepted: 04/14/2020] [Indexed: 02/06/2023] Open
Abstract
More effective treatments for diabetic nephropathy remain a major unmet clinical need. Increased oxidative stress is one of the most important pathological mechanisms that lead to kidney damage and functional impairment induced by diabetes. Sirtuin 3 (SIRT3) is the main mitochondrial deacetylase and critically regulates cellular reactive oxygen species (ROS) production and detoxification. Honokiol is a natural biphenolic compound that, by activating mitochondrial SIRT3, can carry out anti-oxidant, anti-inflammatory and anti-fibrotic activities. Here, we sought to investigate the renoprotective effects of honokiol in BTBR ob/ob mice with type 2 diabetes. Diabetic mice were treated with vehicle or honokiol between the ages of 8 and 14 weeks. Wild-type mice served as controls. Renal Sirt3 expression was significantly reduced in BTBR ob/ob mice, and this was associated with a reduction in its activity and increased ROS levels. Selective activation of SIRT3 through honokiol administration translated into the attenuation of albuminuria, amelioration of glomerular damage, and a reduction in podocyte injury. SIRT3 activation preserved mitochondrial wellness through the activation of SOD2 and the restoration of PGC-1α expression in glomerular cells. Additionally, the protective role of SIRT3 in glomerular changes was associated with enhanced tubular Sirt3 expression and upregulated renal Nampt levels, indicating a possible tubule-glomerulus retrograde interplay, which resulted in improved glomerular SIRT3 activity. Our results demonstrate the hitherto unknown renoprotective effect of SIRT3 against diabetic glomerular disease and suggest that the pharmacological modulation of SIRT3 activity is a possible novel approach to treating diabetic nephropathy.
Collapse
Affiliation(s)
- Monica Locatelli
- Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Centro Anna Maria Astori, Science and Technology Park Kilometro Rosso, Bergamo, Italy
| | - Carlamaria Zoja
- Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Centro Anna Maria Astori, Science and Technology Park Kilometro Rosso, Bergamo, Italy
| | - Cristina Zanchi
- Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Centro Anna Maria Astori, Science and Technology Park Kilometro Rosso, Bergamo, Italy
| | - Daniela Corna
- Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Centro Anna Maria Astori, Science and Technology Park Kilometro Rosso, Bergamo, Italy
| | - Sebastian Villa
- Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Centro Anna Maria Astori, Science and Technology Park Kilometro Rosso, Bergamo, Italy
| | - Silvia Bolognini
- Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Centro Anna Maria Astori, Science and Technology Park Kilometro Rosso, Bergamo, Italy
| | - Rubina Novelli
- Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Centro Anna Maria Astori, Science and Technology Park Kilometro Rosso, Bergamo, Italy
| | - Luca Perico
- Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Centro Anna Maria Astori, Science and Technology Park Kilometro Rosso, Bergamo, Italy
| | - Giuseppe Remuzzi
- Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Centro Anna Maria Astori, Science and Technology Park Kilometro Rosso, Bergamo, Italy.,Department of Biomedical and Clinical Sciences, University of Milan, Milan, Italy
| | - Ariela Benigni
- Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Centro Anna Maria Astori, Science and Technology Park Kilometro Rosso, Bergamo, Italy.
| | - Paola Cassis
- Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Centro Anna Maria Astori, Science and Technology Park Kilometro Rosso, Bergamo, Italy
| |
Collapse
|
21
|
Nestin Selectively Facilitates the Phosphorylation of the Lissencephaly-Linked Protein Doublecortin (DCX) by cdk5/p35 to Regulate Growth Cone Morphology and Sema3a Sensitivity in Developing Neurons. J Neurosci 2020; 40:3720-3740. [PMID: 32273484 DOI: 10.1523/jneurosci.2471-19.2020] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2019] [Revised: 02/24/2020] [Accepted: 03/24/2020] [Indexed: 11/21/2022] Open
Abstract
Nestin, an intermediate filament protein widely used as a marker of neural progenitors, was recently found to be expressed transiently in developing cortical neurons in culture and in developing mouse cortex. In young cortical cultures, nestin regulates axonal growth cone morphology. In addition, nestin, which is known to bind the neuronal cdk5/p35 kinase, affects responses to axon guidance cues upstream of cdk5, specifically, to Sema3a. Changes in growth cone morphology require rearrangements of cytoskeletal networks, and changes in microtubules and actin filaments are well studied. In contrast, the roles of intermediate filament proteins in this process are poorly understood, even in cultured neurons. Here, we investigate the molecular mechanism by which nestin affects growth cone morphology and Sema3a sensitivity. We find that nestin selectively facilitates the phosphorylation of the lissencephaly-linked protein doublecortin (DCX) by cdk5/p35, but the phosphorylation of other cdk5 substrates is not affected by nestin. We uncover that this substrate selectivity is based on the ability of nestin to interact with DCX, but not with other cdk5 substrates. Nestin thus creates a selective scaffold for DCX with activated cdk5/p35. Last, we use cortical cultures derived from Dcx KO mice to show that the effects of nestin on growth cone morphology and on Sema3a sensitivity are DCX-dependent, thus suggesting a functional role for the DCX-nestin complex in neurons. We propose that nestin changes growth cone behavior by regulating the intracellular kinase signaling environment in developing neurons. The sex of animal subjects is unknown.SIGNIFICANCE STATEMENT Nestin, an intermediate filament protein highly expressed in neural progenitors, was recently identified in developing neurons where it regulates growth cone morphology and responsiveness to the guidance cue Sema3a. Changes in growth cone morphology require rearrangements of cytoskeletal networks, but the roles of intermediate filaments in this process are poorly understood. We now report that nestin selectively facilitates phosphorylation of the lissencephaly-linked doublecortin (DCX) by cdk5/p35, but the phosphorylation of other cdk5 substrates is not affected. This substrate selectivity is based on preferential scaffolding of DCX, cdk5, and p35 by nestin. Additionally, we demonstrate a functional role for the DCX-nestin complex in neurons. We propose that nestin changes growth cone behavior by regulating intracellular kinase signaling in developing neurons.
Collapse
|
22
|
Khavinson V, Diomede F, Mironova E, Linkova N, Trofimova S, Trubiani O, Caputi S, Sinjari B. AEDG Peptide (Epitalon) Stimulates Gene Expression and Protein Synthesis during Neurogenesis: Possible Epigenetic Mechanism. Molecules 2020; 25:molecules25030609. [PMID: 32019204 PMCID: PMC7037223 DOI: 10.3390/molecules25030609] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2019] [Revised: 01/23/2020] [Accepted: 01/29/2020] [Indexed: 01/07/2023] Open
Abstract
It was shown that AEDG peptide (Ala-Glu-Asp-Gly, Epitalon) regulates the function of the pineal gland, the retina, and the brain. AEDG peptide increases longevity in animals and decreases experimental cancerogenesis. AEDG peptide induces neuronal cell differentiation in retinal and human periodontal ligament stem cells. The aim of the study was to investigate the influence of AEDG peptide on neurogenic differentiation gene expression and protein synthesis in human gingival mesenchymal stem cells, and to suggest the basis for the epigenetic mechanism of this process. AEDG peptide increased the synthesis of neurogenic differentiation markers: Nestin, GAP43, β Tubulin III, Doublecortin in hGMSCs. AEDG peptide increased Nestin, GAP43, β Tubulin III and Doublecortin mRNA expression by 1.6–1.8 times in hGMSCs. Molecular modelling method showed, that AEDG peptide preferably binds with H1/6 and H1/3 histones in His-Pro-Ser-Tyr-Met-Ala-His-Pro-Ala-Arg-Lys and Tyr-Arg-Lys-Thr-Gln sites, which interact with DNA. These results correspond to previous experimental data. AEDG peptide and histones H1/3, H1/6 binding may be one of the mechanisms which provides an increase of Nestin, GAP43, β Tubulin III, and Doublecortin neuronal differentiation gene transcription. AEDG peptide can epigenetically regulate neuronal differentiation gene expression and protein synthesis in human stem cells.
Collapse
Affiliation(s)
- Vladimir Khavinson
- Saint Petersburg Institute of Bioregulation and Gerontology, Dynamo Ave., 3, 197110 St. Petersburg, Russia; (V.K.); (E.M.); (S.T.)
- Pavlov Institute of Physiology Russian Academy of Sciences, Makarova Emb., 6, 199034 St. Petersburg, Russia
| | - Francesca Diomede
- Department of Medical, Oral and Biotechnological Sciences, University “G. d’Annunzio” Chieti-Pescara, Via dei Vestini, 31, 66100 Chieti, Italy; (F.D.); (O.T.); (S.C.); (B.S.)
| | - Ekaterina Mironova
- Saint Petersburg Institute of Bioregulation and Gerontology, Dynamo Ave., 3, 197110 St. Petersburg, Russia; (V.K.); (E.M.); (S.T.)
| | - Natalia Linkova
- Saint Petersburg Institute of Bioregulation and Gerontology, Dynamo Ave., 3, 197110 St. Petersburg, Russia; (V.K.); (E.M.); (S.T.)
- Academy of postgraduate education under FSBU FSCC of FMBA of Russia, Volokolamskaya r., 91, 125371 Moscow, Russia
- Correspondence: ; Tel.: +7-921-311-4210
| | - Svetlana Trofimova
- Saint Petersburg Institute of Bioregulation and Gerontology, Dynamo Ave., 3, 197110 St. Petersburg, Russia; (V.K.); (E.M.); (S.T.)
- Academy of postgraduate education under FSBU FSCC of FMBA of Russia, Volokolamskaya r., 91, 125371 Moscow, Russia
| | - Oriana Trubiani
- Department of Medical, Oral and Biotechnological Sciences, University “G. d’Annunzio” Chieti-Pescara, Via dei Vestini, 31, 66100 Chieti, Italy; (F.D.); (O.T.); (S.C.); (B.S.)
| | - Sergio Caputi
- Department of Medical, Oral and Biotechnological Sciences, University “G. d’Annunzio” Chieti-Pescara, Via dei Vestini, 31, 66100 Chieti, Italy; (F.D.); (O.T.); (S.C.); (B.S.)
| | - Bruna Sinjari
- Department of Medical, Oral and Biotechnological Sciences, University “G. d’Annunzio” Chieti-Pescara, Via dei Vestini, 31, 66100 Chieti, Italy; (F.D.); (O.T.); (S.C.); (B.S.)
| |
Collapse
|
23
|
Pushchina EV, Kapustyanov IA, Varaksin AA. Neural Stem Cells/Neuronal Precursor Cells and Postmitotic Neuroblasts in Constitutive Neurogenesis and After ,Traumatic Injury to the Mesencephalic Tegmentum of Juvenile Chum Salmon, Oncorhynchus keta. Brain Sci 2020; 10:brainsci10020065. [PMID: 31991815 PMCID: PMC7071460 DOI: 10.3390/brainsci10020065] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2019] [Revised: 01/15/2020] [Accepted: 01/22/2020] [Indexed: 11/30/2022] Open
Abstract
The proliferation of neural stem cells (NSCs)/neuronal precursor cells (NPCs) and the occurrence of postmitotic neuroblasts in the mesencephalic tegmentum of intact juvenile chum salmon, Oncorhynchus keta, and at 3 days after a tegmental injury, were studied by immunohistochemical labeling. BrdU+ constitutive progenitor cells located both in the periventricular matrix zone and in deeper subventricular and parenchymal layers of the brain are revealed in the tegmentum of juvenile chum salmon. As a result of traumatic damage to the tegmentum, the proliferation of resident progenitor cells of the neuroepithelial type increases. Nestin-positive and vimentin-positive NPCs and granules located in the periventricular and subventricular matrix zones, as well as in the parenchymal regions of the tegmentum, are revealed in the mesencephalic tegmentum of juvenile chum salmon, which indicates a high level of constructive metabolism and constitutive neurogenesis. The expression of vimentin and nestin in the extracellular space, as well as additionally in the NSCs and NPCs of the neuroepithelial phenotype, which do not express nestin in the control animals, is enhanced during the traumatic process. As a result of the proliferation of such cells in the post-traumatic period, local Nes+ and Vim+ NPCs clusters are formed and become involved in the reparative response. Along with the primary traumatic lesion, which coincides with the injury zone, additional Nes+ and Vim+ secondary lesions are observed to form in the adjacent subventricular and parenchymal zones of the tegmentum. In the lateral tegmentum, the number of doublecortin-positive cells is higher compared to that in the medial tegmentum, which determines the different intensities and rates of neuronal differentiation in the sensory and motor regions of the tegmentum, respectively. In periventricular regions remote from the injury, the expression of doublecortin in single cells and their groups significantly increases compared to that in the damage zone.
Collapse
Affiliation(s)
- Evgeniya V. Pushchina
- Zhirmunsky National Scientific Center of Marine Biology, Far East Branch, Russian Academy of Sciences, Vladivostok 690041, Russia; (I.A.K.); (A.A.V.)
- Bogomoletz Institute of Physiology, National Academy of Sciences of Ukraine, Kyiv 01024, Ukraine
- Correspondence:
| | - Ilya A. Kapustyanov
- Zhirmunsky National Scientific Center of Marine Biology, Far East Branch, Russian Academy of Sciences, Vladivostok 690041, Russia; (I.A.K.); (A.A.V.)
| | - Anatoly A. Varaksin
- Zhirmunsky National Scientific Center of Marine Biology, Far East Branch, Russian Academy of Sciences, Vladivostok 690041, Russia; (I.A.K.); (A.A.V.)
| |
Collapse
|
24
|
Li D, Chen QX, Zou W, Sun XW, Yu XP, Dai XH, Teng W. Acupuncture promotes functional recovery after cerebral hemorrhage by upregulating neurotrophic factor expression. Neural Regen Res 2020; 15:1510-1517. [PMID: 31997816 PMCID: PMC7059575 DOI: 10.4103/1673-5374.257532] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Abstract
Acupuncture is widely used in the treatment of cerebral hemorrhage, and it improves outcomes in experimental animal models and patients. However, the mechanisms underlying the effectiveness of acupuncture treatment for cerebral hemorrhage are still unclear. In this study, a model of intracerebral hemorrhage was produced by injecting 50 μL autologous blood into the caudate nucleus in Wistar rats. Acupuncture at Baihui (DU20) and Qubin (GB7) acupoints was performed at a depth of 1.0 inch, 12 hours after blood injection, once every 24 hours. The needle was rotated at 200 r/min for 5 minutes, For each 30-minute session, needling at 200 r/min was performed for three sessions, each lasting 5 minutes. For the positive control group, at 6 hours, and 1, 2, 3 and 7 days after induction of hemorrhage, the rats were intraperitoneally injected with 1 mL aniracetam (0.75 mg/mL), three times a day. The Bederson behavioral test was used to assess palsy in the contralateral limbs. Western blot assay was used to examine the expression levels of Nestin and basic fibroblast growth factor in the basal ganglia. Immunohistochemistry was performed to count the number of Nestin- and glial cell line-derived neurotrophic factor-positive cells in the basal ganglia. Acupuncture effectively reduced hemorrhage and brain edema, elevated the expression levels of Nestin and basic fibroblast growth factor in the basal ganglia, and increased the number of Nestin- and glial cell line-derived neurotrophic factor-positive cells in the basal ganglia. Together, these findings suggest that acupuncture promotes functional recovery after cerebral hemorrhage by increasing the expression of neurotrophic factors. The study was approved by the Committee for Experimental Animals of Heilongjiang Medical Laboratory Animal Center (approval No. 2017061001) on June 10, 2017.
Collapse
Affiliation(s)
- Dan Li
- Department of Acupuncture, Third Affiliated Hospital, Beijing University of Chinese Medicine, Beijing, China
| | - Qiu-Xin Chen
- Third Department of Acupuncture, First Affiliated Hospital, Heilongjiang University of Chinese Medicine, Harbin, Heilongjiang Province, China
| | - Wei Zou
- Third Department of Acupuncture, First Affiliated Hospital, Heilongjiang University of Chinese Medicine, Harbin, Heilongjiang Province, China
| | - Xiao-Wei Sun
- Third Department of Acupuncture, First Affiliated Hospital, Heilongjiang University of Chinese Medicine, Harbin, Heilongjiang Province, China
| | - Xue-Ping Yu
- Third Department of Acupuncture, First Affiliated Hospital, Heilongjiang University of Chinese Medicine, Harbin, Heilongjiang Province, China
| | - Xiao-Hong Dai
- Third Department of Acupuncture, First Affiliated Hospital, Heilongjiang University of Chinese Medicine, Harbin, Heilongjiang Province, China
| | - Wei Teng
- Third Department of Acupuncture, First Affiliated Hospital, Heilongjiang University of Chinese Medicine, Harbin, Heilongjiang Province, China
| |
Collapse
|
25
|
Tang C, Zhu L, Zhou Q, Li M, Zhu Y, Xu Z, Lu Y, Xu R. Altered Features of Vimentin-containing Cells in Cerebrum of Tg(SOD1*G93A)1Gur Mice: A Preliminary Study on Cerebrum Endogenous Neural Precursor Cells in Amyotrophic Lateral Sclerosis. Int J Biol Sci 2019; 15:2830-2843. [PMID: 31853221 PMCID: PMC6909959 DOI: 10.7150/ijbs.33461] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2019] [Accepted: 09/16/2019] [Indexed: 12/11/2022] Open
Abstract
Vimentin-containing cells (VCCs) are potential neural precursor cells in central nervous systems, Thus, we studied the alteration of VCCs proliferation, differentiation and migration in the cerebrum during different stages of Tg(SOD1*G93A)1Gur mice. It aims to search potential ways regulating the proliferation, differentiation and migration of endogenous VCCs, to enhance their neural repair function and to cure or prevent from the development of ALS. We observed and analyzed the proliferation, differentiation and migration of VCCs in different anatomic regions and cell types of cerebrum at different stages including the pre-onset (60-70 days), onset (90-100 days) and progression (120-130 days) of wild-type (WT) and Tg(SOD1*G93A)1Gur mice using the fluorescent immunohistochemical technology. Results showed that VCCs in the cerebrum were mostly distributed in the ventricular system, periventricular structures, the hippocampus and the cerebral cortex in WT mice. VCCs significantly reduced in the motor cortex and the cingulate cortex in Tg(SOD1*G93A)1Gur mice. All vimentin expressed in the extranuclear and almost all VCCs were astrocytes in WT mice and Tg(SOD1*G93A)1Gur mice. There were no significant difference in the number of Brdu and nestin positive cells in left and right brains of WT mice and Tg(SOD1*G93A)1Gur mice in the period of 60-130 days. Our data suggested that there existed extensively NPCs in the cerebrum of adult mice. In ALS-like Tg(SOD1*G93A)1Gur mice, VCCs in the motor cortex, the olfactory cortex and the cingulate cortex showed that no any proliferation and redistribution in neural cells of VCCs in the cerebrum occurred in all stages of ALS, might migrate to damaged regions.
Collapse
Affiliation(s)
- Chunyan Tang
- Department of Neurology, Jiangxi Provincial People's Hospital, Affiliated People's Hospital of Nanchang University, Nanchang 330006, Jiangxi, china
| | - Lei Zhu
- Department of Neurology, Jiangxi Provincial People's Hospital, Affiliated People's Hospital of Nanchang University, Nanchang 330006, Jiangxi, china
| | - Qi Zhou
- Department of Neurology, Jiangxi Provincial People's Hospital, Affiliated People's Hospital of Nanchang University, Nanchang 330006, Jiangxi, china
| | - Menghua Li
- Department of Neurology, Jiangxi Provincial People's Hospital, Affiliated People's Hospital of Nanchang University, Nanchang 330006, Jiangxi, china
| | - Yu Zhu
- Department of Neurology, Jiangxi Provincial People's Hospital, Affiliated People's Hospital of Nanchang University, Nanchang 330006, Jiangxi, china
| | - Zhenzhen Xu
- Department of Neurology, Jiangxi Provincial People's Hospital, Affiliated People's Hospital of Nanchang University, Nanchang 330006, Jiangxi, china
| | - Yi Lu
- Department of Neurology, Jiangxi Provincial People's Hospital, Affiliated People's Hospital of Nanchang University, Nanchang 330006, Jiangxi, china
| | - Renshi Xu
- Department of Neurology, Jiangxi Provincial People's Hospital, Affiliated People's Hospital of Nanchang University, Nanchang 330006, Jiangxi, china
- Department of Neurology, First Affiliated Hospital of Nanchang University, Nanchang 330006, Jiangxi, China
| |
Collapse
|
26
|
Isolation and Characterization of Neural Stem Cells from the Rat Inferior Colliculus. Stem Cells Int 2019; 2019:5831240. [PMID: 31781242 PMCID: PMC6875198 DOI: 10.1155/2019/5831240] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2019] [Revised: 08/16/2019] [Accepted: 08/27/2019] [Indexed: 12/12/2022] Open
Abstract
The inferior colliculus (IC) is a nucleus of the auditory pathway and its fourth relay station. It integrates afferent information from the superior olivary complex and the cochlear nucleus. To date, no causal therapeutic options are known for damaged neuronal structures in this area. Regenerative medicine offers a potential approach to causally treating hearing impairment. After neural stem cells had been identified in certain areas of the auditory pathway, the question arouses, whether the IC also has a neurogenic potential. Cells from the IC of postnatal day 6 rats were extracted and cultured as neurospheres. Cells in the neurospheres showed mitotic activity and positive stain of neural stem cell markers (Nestin, DCX, Atoh1, and Sox-2). In addition, single cells were differentiated into neuronal and glial cells shown by the markers β-III-tubulin, GFAP, and MBP. In summary, basic stem cell criteria could be detected and characterized in cells isolated from the IC of the rat. These findings will lead to a better understanding of the development of the auditory pathway and may also be relevant for identifying causal therapeutic approaches in the future.
Collapse
|
27
|
Caputi S, Trubiani O, Sinjari B, Trofimova S, Diomede F, Linkova N, Diatlova A, Khavinson V. Effect of short peptides on neuronal differentiation of stem cells. Int J Immunopathol Pharmacol 2019; 33:2058738419828613. [PMID: 30791821 PMCID: PMC6376556 DOI: 10.1177/2058738419828613] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
It has been demonstrated that short peptides play an important role in the transmission of biological information, modulation of transcription, and restoring genetically conditioned alterations occurring with age. Peptidergic regulation of homeostasis occupies an important place in physiological processes, which lead to the aging of cells, tissues, and organs, consisting in the involution of major regulatory systems-the nervous, the endocrine, and the immune. The effect of AED (Ala-Glu-Asp), KED (Lys-Glu-Asp), KE (Lys-Glu), AEDG (Ala-Glu-Asp-Gly) peptides and their compound on neuronal differentiation of human periodontal ligament stem cells (hPDLSCs) was studied by immunofluorescence and western blot analysis. Growth-Associated Protein 43 (GAP43), which implements neurotransmission mechanisms and neuroplasticity, demonstrated an increased expression in hPDLSCs cultured with a compound of all studied peptides and with KED alone. The peptide compound and KED, increase the expression of Nestin (neurofilament protein), expressed in early neuronal precursors in hPDLSCs cultures. Thus, the compound of peptides AEDG, KE, AED, and KED could promote the neuronal differentiation of hPDLSCs and be a promising tool for the study of peptides as a modulator of neurogenesis in neurodegenerative diseases studied in animal models.
Collapse
Affiliation(s)
- Sergio Caputi
- 1 Laboratory of Stem Cells and Regenerative Medicine, Department of Medical, Oral and Biotechnological Sciences, School of Medicine and Health Sciences, University "G. d'Annunzio" Chieti-Pescara, Chieti, Italy
| | - Oriana Trubiani
- 1 Laboratory of Stem Cells and Regenerative Medicine, Department of Medical, Oral and Biotechnological Sciences, School of Medicine and Health Sciences, University "G. d'Annunzio" Chieti-Pescara, Chieti, Italy
| | - Bruna Sinjari
- 1 Laboratory of Stem Cells and Regenerative Medicine, Department of Medical, Oral and Biotechnological Sciences, School of Medicine and Health Sciences, University "G. d'Annunzio" Chieti-Pescara, Chieti, Italy
| | - Svetlana Trofimova
- 2 Department of Biogerontology, Saint Petersburg Institute of Bioregulation and Gerontology, Saint Petersburg, Russia
| | - Francesca Diomede
- 1 Laboratory of Stem Cells and Regenerative Medicine, Department of Medical, Oral and Biotechnological Sciences, School of Medicine and Health Sciences, University "G. d'Annunzio" Chieti-Pescara, Chieti, Italy
| | - Natalia Linkova
- 2 Department of Biogerontology, Saint Petersburg Institute of Bioregulation and Gerontology, Saint Petersburg, Russia.,3 Department of Medical Physic, Peter the Great St. Petersburg Polytechnic University, Saint Petersburg, Russia
| | - Anastasia Diatlova
- 2 Department of Biogerontology, Saint Petersburg Institute of Bioregulation and Gerontology, Saint Petersburg, Russia.,3 Department of Medical Physic, Peter the Great St. Petersburg Polytechnic University, Saint Petersburg, Russia
| | - Vladimir Khavinson
- 2 Department of Biogerontology, Saint Petersburg Institute of Bioregulation and Gerontology, Saint Petersburg, Russia.,4 Group of Peptide Regulation of Ageing, Pavlov Institute of Physiology of RAS, Saint Petersburg, Russia
| |
Collapse
|
28
|
Menyhárt O, Győrffy B. Principles of tumorigenesis and emerging molecular drivers of SHH-activated medulloblastomas. Ann Clin Transl Neurol 2019; 6:990-1005. [PMID: 31139698 PMCID: PMC6529984 DOI: 10.1002/acn3.762] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2019] [Revised: 02/26/2019] [Accepted: 02/27/2019] [Indexed: 12/20/2022] Open
Abstract
SHH-activated medulloblastomas (SHH-MB) account for 25-30% of all medulloblastomas (MB) and occur with a bimodal age distribution, encompassing many infant and adult, but fewer childhood cases. Different age groups are characterized by distinct survival outcomes and age-specific alterations of regulatory pathways. Here, we review SHH-specific genetic aberrations and signaling pathways. Over 95% of SHH-MBs contain at least one driver event - the activating mutations frequently affect sonic hedgehog signaling (PTCH1, SMO, SUFU), genome maintenance (TP53), and chromatin modulation (KMT2D, KMT2C, HAT complexes), while genes responsible for transcriptional regulation (MYCN) are recurrently amplified. SHH-MBs have the highest prevalence of damaging germline mutations among all MBs. TP53-mutant MBs are enriched among older children and have the worst prognosis among all SHH-MBs. Numerous genetic aberrations, including mutations of TERT, DDX3X, and the PI3K/AKT/mTOR pathway are almost exclusive to adult patients. We elaborate on the newest development within the evolution of molecular subclassification, and compare proposed risk categories across emerging classification systems. We discuss discoveries based on preclinical models and elaborate on the applicability of potential new therapies, including BET bromodomain inhibitors, statins, inhibitors of SMO, AURK, PLK, cMET, targeting stem-like cells, and emerging immunotherapeutic strategies. An enormous amount of data on the genetic background of SHH-MB have accumulated, nevertheless, subgroup affiliation does not provide reliable prediction about response to therapy. Emerging subtypes within SHH-MB offer more layered risk stratifications. Rational clinical trial designs with the incorporation of available molecular knowledge are inevitable. Improved collaboration across the scientific community will be imperative for therapeutic breakthroughs.
Collapse
Affiliation(s)
- Otília Menyhárt
- 2nd Department of Pediatrics Semmelweis University H-1094 Budapest Hungary.,MTA TTK Lendület Cancer Biomarker Research Group Institute of Enzymology Hungarian Academy of Sciences Magyar tudósok körútja 2 Budapest Hungary
| | - Balázs Győrffy
- 2nd Department of Pediatrics Semmelweis University H-1094 Budapest Hungary.,MTA TTK Lendület Cancer Biomarker Research Group Institute of Enzymology Hungarian Academy of Sciences Magyar tudósok körútja 2 Budapest Hungary
| |
Collapse
|
29
|
Han S, Huang T, Wu X, Wang X, Li W, Liu S, Yang W, Shi Q, Li H, Shi K, Hou F. Prognostic value of ALDH1 and Nestin in advanced cancer: a systematic meta-analysis with trial sequential analysis. Ther Adv Med Oncol 2019; 11:1758835919830831. [PMID: 30833990 PMCID: PMC6393950 DOI: 10.1177/1758835919830831] [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: 10/15/2018] [Accepted: 10/28/2018] [Indexed: 12/24/2022] Open
Abstract
Background Novel prognostic markers and therapeutic targets for advanced cancer are urgently needed. This report with trial sequential analysis (TSA) was first conducted to provide robust estimates of the correlation between aldehyde dehydrogenase 1 (ALDH1) and Nestin and clinical outcomes of advanced cancer patients. Methods Hazard ratios (HRs) with 95% confidence intervals (CIs) were summarized for overall survival (OS), disease-free survival (DFS), progression-free survival (PFS), cancer-specific survival (CSS), relapse/recurrence-free survival (RFS), and metastasis-free survival (MFS) from multivariable analysis. TSA was performed to control for random errors. Results A total of 20 studies with 2050 patients (ALDH1: 15 studies with 1557 patients and Nestin: 5 studies with 493 patients) were identified. ALDH1 (HR = 2.28, p < 0.001) and Nestin (HR = 2.39, p < 0.001) were associated with a worse OS, as confirmed by TSA. Nestin positivity was linked to a poor PFS (HR = 2.08, p < 0.001), but ALDH1 was not linked to DFS, RFS, MFS, or PFS, and TSA showed that more studies were needed. Subgroup analysis by tumor type indicated that ALDH1 positivity may be associated with shorter OS in breast, head and neck cancers, but there was no association with colorectal cancer. Subgroup analysis by study source showed that ALDH1 positivity was correlated with a worse OS for Japanese (HR = 1.94, p = 0.002) and European patients (HR = 4.15, p < 0.001), but there was no association for Chinese patients. Subgroup analysis by survival rate showed that ALDH1 positivity correlated with poor OS at ⩾ 5 years (HR = 2.33, p < 0.001) or 10 years (HR = 1.76, p = 0.038). Conclusions ALDH1 may be more valuable as an effective therapeutic target than Nestin for improving the long-term survival rate of advanced cancer. Additional prospective clinical trials are needed across different cancer types.
Collapse
Affiliation(s)
- Susu Han
- Shanghai Municipal Hospital of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, 274 Zhijiang Road, Shanghai 200071, People's Republic of China
| | - Tao Huang
- The Affiliated Hospital of Ningbo University, Ningbo, Zhejiang, 315020, People's Republic of China
| | - Xing Wu
- Shanghai Municipal Hospital of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, People's Republic of China
| | - Xiyu Wang
- Shanghai Municipal Hospital of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, People's Republic of China
| | - Wen Li
- Shanghai Municipal Hospital of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, People's Republic of China
| | - Shanshan Liu
- Shanghai Municipal Hospital of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, People's Republic of China
| | - Wei Yang
- Shanghai Municipal Hospital of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, People's Republic of China
| | - Qi Shi
- Shanghai Municipal Hospital of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, People's Republic of China
| | - Hongjia Li
- Shanghai Municipal Hospital of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, People's Republic of China
| | - Kunhe Shi
- Shanghai Municipal Hospital of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, People's Republic of China
| | - Fenggang Hou
- Shanghai Municipal Hospital of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, 274 Zhijiang Road, Shanghai 200071, People's Republic of China
| |
Collapse
|
30
|
Resistin-Inhibited Neural Stem Cell-Derived Astrocyte Differentiation Contributes to Permeability Destruction of the Blood-Brain Barrier. Neurochem Res 2019; 44:905-916. [PMID: 30690681 DOI: 10.1007/s11064-019-02726-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2018] [Accepted: 01/09/2019] [Indexed: 12/12/2022]
Abstract
Neuroinflammation is an important part of the development of neurodegenerative diseases such as Alzheimer's disease (AD), Parkinson's and amyotrophic lateral sclerosis. Inflammatory factors destroy the balance of the microenvironment, which results in changes in neural stem cell differentiation and proliferation behaviour. However, the mechanism underlying inflammatory factor-induced NSC behavioural changes is not clear. Resistin is a proinflammatory and adipogenic factor and is involved in several human pathology processes. The neural stem cell microenvironment changes when the concentration of resistin in the brain during an inflammatory response disease increases. In the present study, we explored the effect and mechanism of resistin on the proliferation and differentiation of neural stem cells. We found that intracerebroventricular injection of resistin induced a decrease in GFAP-positive cells in mice by influencing NSC differentiation. Resistin significantly decreased TEER and increased permeability in an in vitro blood-brain barrier model, which is consistent with the results of an HBMEC-astrocyte coculture system. Resistin-inhibited astrocyte differentiation is mediated through TLR4 on neural stem cells. To our knowledge, this is the first study reporting the effect of resistin on neural stem cells. Our findings shed light on resistin-involved neural stem cell degeneration mechanisms.
Collapse
|
31
|
Xing Y, Zhang M, Li WB, Dong F, Zhang F. Mechanisms Involved in the Neuroprotection of Electroacupuncture Therapy for Ischemic Stroke. Front Neurosci 2018; 12:929. [PMID: 30618558 PMCID: PMC6297779 DOI: 10.3389/fnins.2018.00929] [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: 06/06/2018] [Accepted: 11/27/2018] [Indexed: 12/13/2022] Open
Abstract
Stroke is one of the main causes of death all over the world. As the combination of acupuncture and electric stimulation, electroacupuncutre is a safe and effective therapy, which is commonly applied in ischemic stroke therapy in both experimental studies and clinical settings. The review was performed via searching for related articles in the databases of OVID, PUBMED, and ISI Web of Science from their respective inceptions to May 2018. In this review, we summarized the mechanism of EA for ischemic stroke via a series of factors, consisting of apoptosis related-factors, inflammatory factors, autophagy-related factors, growth factors, transcriptional factors, cannabinoid CB1 receptors, and other factors. In summary, EA stimulation may effectively alleviate ischemic brain injury via a series of signal pathways and various other factors.
Collapse
Affiliation(s)
- Ying Xing
- Department of Rehabilitation Medicine, The Third Hospital of Hebei Medical University, Shijiazhuang, China
| | - Min Zhang
- Department of Pathophysiology, Hebei Medical University, Shijiazhuang, China
| | - Wen-Bin Li
- Department of Pathophysiology, Hebei Medical University, Shijiazhuang, China
| | - Fang Dong
- Department of Clinical Laboratory Medicine, The Third Hospital of Hebei Medical University, Shijiazhuang, China
| | - Feng Zhang
- Department of Rehabilitation Medicine, The Third Hospital of Hebei Medical University, Shijiazhuang, China.,Hebei Provincial Orthopedic Biomechanics Key Laboratory, The Third Hospital of Hebei Medical University, Shijiazhuang, China
| |
Collapse
|
32
|
Dusart P, Fagerberg L, Perisic L, Civelek M, Struck E, Hedin U, Uhlén M, Trégouët DA, Renné T, Odeberg J, Butler LM. A systems-approach reveals human nestin is an endothelial-enriched, angiogenesis-independent intermediate filament protein. Sci Rep 2018; 8:14668. [PMID: 30279450 PMCID: PMC6168570 DOI: 10.1038/s41598-018-32859-4] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2018] [Accepted: 09/12/2018] [Indexed: 12/18/2022] Open
Abstract
The intermediate filament protein nestin is expressed during embryonic development, but considered largely restricted to areas of regeneration in the adult. Here, we perform a body-wide transcriptome and protein-profiling analysis to reveal that nestin is constitutively, and highly-selectively, expressed in adult human endothelial cells (EC), independent of proliferative status. Correspondingly, we demonstrate that it is not a marker for tumour EC in multiple malignancy types. Imaging of EC from different vascular beds reveals nestin subcellular distribution is shear-modulated. siRNA inhibition of nestin increases EC proliferation, and nestin expression is reduced in atherosclerotic plaque neovessels. eQTL analysis reveals an association between SNPs linked to cardiovascular disease and reduced aortic EC nestin mRNA expression. Our study challenges the dogma that nestin is a marker of proliferation, and provides insight into its regulation and function in EC. Furthermore, our systems-based approach can be applied to investigate body-wide expression profiles of any candidate protein.
Collapse
Affiliation(s)
- Philip Dusart
- Science for Life Laboratory, School of Biotechnology, Kungliga Tekniska Högskolan (KTH) Royal Institute of Technology, SE-171 21, Stockholm, Sweden
| | - Linn Fagerberg
- Science for Life Laboratory, School of Biotechnology, Kungliga Tekniska Högskolan (KTH) Royal Institute of Technology, SE-171 21, Stockholm, Sweden
| | - Ljubica Perisic
- Vascular Surgery, Department of Molecular Medicine and Surgery, Karolinska Institute, SE-171 76, Stockholm, Sweden
| | - Mete Civelek
- Department of Biomedical Engineering, University of Virginia, Charlottesville, USA
| | - Eike Struck
- Science for Life Laboratory, School of Biotechnology, Kungliga Tekniska Högskolan (KTH) Royal Institute of Technology, SE-171 21, Stockholm, Sweden
| | - Ulf Hedin
- Vascular Surgery, Department of Molecular Medicine and Surgery, Karolinska Institute, SE-171 76, Stockholm, Sweden
| | - Mathias Uhlén
- Science for Life Laboratory, School of Biotechnology, Kungliga Tekniska Högskolan (KTH) Royal Institute of Technology, SE-171 21, Stockholm, Sweden
| | - David-Alexandre Trégouët
- Sorbonne Universités, UPMC Univ Paris 06, UMR_S 1166, Team Genomics & Pathophysiology of Cardiovascular Diseases, Paris, France.,ICAN Institute for Cardiometabolism and Nutrition, Paris, France
| | - Thomas Renné
- Institute for Clinical Chemistry and Laboratory Medicine, University Medical Centre Hamburg-Eppendorf, D-20246, Hamburg, Germany
| | - Jacob Odeberg
- Science for Life Laboratory, School of Biotechnology, Kungliga Tekniska Högskolan (KTH) Royal Institute of Technology, SE-171 21, Stockholm, Sweden.,Coagulation Unit, Centre for Hematology, Karolinska University Hospital, SE-171 76, Stockholm, Sweden
| | - Lynn M Butler
- Science for Life Laboratory, School of Biotechnology, Kungliga Tekniska Högskolan (KTH) Royal Institute of Technology, SE-171 21, Stockholm, Sweden. .,Clinical Chemistry and Blood Coagulation, Department of Molecular Medicine and Surgery, Karolinska Institute, SE-171 76, Stockholm, Sweden. .,Institute for Clinical Chemistry and Laboratory Medicine, University Medical Centre Hamburg-Eppendorf, D-20246, Hamburg, Germany.
| |
Collapse
|
33
|
Hayes AJ, Smith SM, Caterson B, Melrose J. Concise Review: Stem/Progenitor Cell Proteoglycans Decorated with 7-D-4, 4-C-3, and 3-B-3(-) Chondroitin Sulfate Motifs Are Morphogenetic Markers of Tissue Development. Stem Cells 2018; 36:1475-1486. [PMID: 29893019 PMCID: PMC6381390 DOI: 10.1002/stem.2860] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2018] [Revised: 05/02/2018] [Accepted: 05/11/2018] [Indexed: 01/02/2023]
Abstract
This study reviewed the occurrence of chondroitin sulfate (CS) motifs 4-C-3, 7-D-4, and 3-B-3(-), which are expressed by progenitor cells in tissues undergoing morphogenesis. These motifs have a transient early expression pattern during tissue development and also appear in mature tissues during pathological remodeling and attempted repair processes by activated adult stem cells. The CS motifs are information and recognition modules, which may regulate cellular behavior and delineate stem cell niches in developmental tissues. One of the difficulties in determining the precise role of stem cells in tissue development and repair processes is their short engraftment period and the lack of specific markers, which differentiate the activated stem cell lineages from the resident cells. The CS sulfation motifs 7-D-4, 4-C-3, and 3-B-3 (-) decorate cell surface proteoglycans on activated stem/progenitor cells and appear to identify these cells in transitional areas of tissue development and in tissue repair and may be applicable to determining a more precise role for stem cells in tissue morphogenesis. Stem Cells 2018;36:1475-1486.
Collapse
Affiliation(s)
- Anthony J Hayes
- Bioimaging Research Hub, Cardiff School of Biosciences, Cardiff University, Cardiff, Wales, United Kingdom
| | - Susan M Smith
- Raymond Purves Bone and Joint Research Laboratories, Kolling Institute of Medical Research, Royal North Shore Hospital and University of Sydney, St. Leonards, New South Wales, Australia
| | - Bruce Caterson
- School of Biosciences, Cardiff University, Cardiff, Wales, United Kingdom
| | - James Melrose
- Raymond Purves Bone and Joint Research Laboratories, Kolling Institute of Medical Research, Royal North Shore Hospital and University of Sydney, St. Leonards, New South Wales, Australia.,Graduate School of Biomedical Engineering, University of New South Wales, Sydney, New South Wales, Australia
| |
Collapse
|
34
|
The phenotypic and functional properties of mouse yolk-sac-derived embryonic macrophages. Dev Biol 2018; 442:138-154. [PMID: 30016639 DOI: 10.1016/j.ydbio.2018.07.009] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2018] [Accepted: 07/11/2018] [Indexed: 01/14/2023]
Abstract
Macrophages are well characterized as immune cells. However, in recent years, a multitude of non-immune functions have emerged many of which play essential roles in a variety of developmental processes (Wynn et al., 2013; DeFalco et al., 2014). In adult animals, macrophages are derived from circulating monocytes originating in the bone marrow, but much of the tissue-resident population arise from erythro-myeloid progenitors (EMPs) in the extra-embryonic yolk sac, appearing around the same time as primitive erythroblasts (Schulz et al., 2012; Kierdorf et al., 2013; McGrath et al., 2015; Gomez Perdiguero et al., 2015; Mass et al., 2016). Of particular interest to our group, macrophages have been shown to act as pro-angiogenic regulators during development (Wynn et al., 2013; DeFalco et al., 2014; Hsu et al., 2015), but there is still much to learn about these early cells. The goal of the present study was to isolate and expand progenitors of yolk-sac-derived Embryonic Macrophages (EMs) in vitro to generate a new platform for mechanistic studies of EM differentiation. To accomplish this goal, we isolated pure (>98%) EGFP+ populations by flow cytometry from embryonic day 9.5 (E9.5) Csf1r-EGFP+/tg mice, then evaluated the angiogenic potential of EMs relative to Bone Marrow-Derived Macrophages (BMDMs). We found that EMs expressed more pro-angiogenic and less pro-inflammatory macrophage markers than BMDMs. EMs also promoted more endothelial cell (EC) cord formation in vitro, as compared to BMDMs in a manner that required direct cell-to-cell contact. Importantly, EMs preferentially matured into microglia when co-cultured with mouse Neural Stem/Progenitor Cells (NSPCs). In conclusion, we have established a protocol to isolate and propagate EMs in vitro, have further defined specialized properties of yolk-sac-derived macrophages, and have identified EM-EC and EM-NSPC interactions as key inducers of EC tube formation and microglial cell maturation, respectively.
Collapse
|
35
|
Oldrini B, Curiel-García Á, Marques C, Matia V, Uluçkan Ö, Graña-Castro O, Torres-Ruiz R, Rodriguez-Perales S, Huse JT, Squatrito M. Somatic genome editing with the RCAS-TVA-CRISPR-Cas9 system for precision tumor modeling. Nat Commun 2018; 9:1466. [PMID: 29654229 PMCID: PMC5899147 DOI: 10.1038/s41467-018-03731-w] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2017] [Accepted: 03/08/2018] [Indexed: 12/21/2022] Open
Abstract
To accurately recapitulate the heterogeneity of human diseases, animal models require to recreate multiple complex genetic alterations. Here, we combine the RCAS-TVA system with the CRISPR-Cas9 genome editing tools for precise modeling of human tumors. We show that somatic deletion in neural stem cells of a variety of known tumor suppressor genes (Trp53, Cdkn2a, and Pten) leads to high-grade glioma formation. Moreover, by simultaneous delivery of pairs of guide RNAs we generate different gene fusions with oncogenic potential, either by chromosomal deletion (Bcan-Ntrk1) or by chromosomal translocation (Myb-Qk). Lastly, using homology-directed-repair, we also produce tumors carrying the homologous mutation to human BRAF V600E, frequently identified in a variety of tumors, including different types of gliomas. In summary, we have developed an extremely versatile mouse model for in vivo somatic genome editing, that will elicit the generation of more accurate cancer models particularly appropriate for pre-clinical testing.
Collapse
Affiliation(s)
- Barbara Oldrini
- Seve Ballesteros Foundation Brain Tumor Group, Cancer Cell Biology Program, Spanish National Cancer Research Center, CNIO, 28029, Madrid, Spain
| | - Álvaro Curiel-García
- Seve Ballesteros Foundation Brain Tumor Group, Cancer Cell Biology Program, Spanish National Cancer Research Center, CNIO, 28029, Madrid, Spain
| | - Carolina Marques
- Seve Ballesteros Foundation Brain Tumor Group, Cancer Cell Biology Program, Spanish National Cancer Research Center, CNIO, 28029, Madrid, Spain
| | - Veronica Matia
- Seve Ballesteros Foundation Brain Tumor Group, Cancer Cell Biology Program, Spanish National Cancer Research Center, CNIO, 28029, Madrid, Spain
| | - Özge Uluçkan
- Genes, Development, and Disease Group, Cancer Cell Biology Program, Spanish National Cancer Research Centre, CNIO, 28029, Madrid, Spain
| | - Osvaldo Graña-Castro
- Bioinformatics Unit, Structural Biology and Biocomputing Programme, CNIO, 28029, Madrid, Spain
| | - Raul Torres-Ruiz
- Molecular Cytogenetics Group, Human Cancer Genetics Program, Spanish National Cancer Research Center, CNIO, 28029, Madrid, Spain
| | - Sandra Rodriguez-Perales
- Molecular Cytogenetics Group, Human Cancer Genetics Program, Spanish National Cancer Research Center, CNIO, 28029, Madrid, Spain
| | - Jason T Huse
- Departments of Pathology and Translational Molecular Pathology, University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA
| | - Massimo Squatrito
- Seve Ballesteros Foundation Brain Tumor Group, Cancer Cell Biology Program, Spanish National Cancer Research Center, CNIO, 28029, Madrid, Spain.
| |
Collapse
|
36
|
Motor Improvement of Skilled Forelimb Use Induced by Treatment with Growth Hormone and Rehabilitation Is Dependent on the Onset of the Treatment after Cortical Ablation. Neural Plast 2018; 2018:6125901. [PMID: 29755514 PMCID: PMC5883990 DOI: 10.1155/2018/6125901] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2017] [Revised: 12/20/2017] [Accepted: 01/08/2018] [Indexed: 01/04/2023] Open
Abstract
We previously demonstrated that the administration of GH immediately after severe motor cortex injury, in rats, followed by rehabilitation, improved the functionality of the affected limb and reexpressed nestin in the contralateral motor cortex. Here, we analyze whether these GH effects depend on a time window after the injury and on the reexpression of nestin and actin. Injured animals were treated with GH (0.15 mg/kg/day) or vehicle, at days 7, 14, and 35 after cortical ablation. Rehabilitation was applied at short and long term (LTR) after the lesion and then sacrificed. Nestin and actin were analyzed by immunoblotting in the contralateral motor cortex. Giving GH at days 7 or 35 after the lesion, but not 14 days after it, led to a remarkable improvement in the functionality of the affected paw. Contralateral nestin and actin reexpression was clearly higher in GH-treated animals, probably because compensatory brain plasticity was established. GH and immediate rehabilitation are key for repairing brain injuries, with the exception of a critical time period: GH treatment starting 14 days after the lesion. Our data also indicate that there is not a clear plateau in the recovery from a brain injury in agreement with our data in human patients.
Collapse
|
37
|
McGowan SE, McCoy DM. Neuropilin-1 and platelet-derived growth factor receptors cooperatively regulate intermediate filaments and mesenchymal cell migration during alveolar septation. Am J Physiol Lung Cell Mol Physiol 2018. [PMID: 29543041 DOI: 10.1152/ajplung.00511.2017] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
Generation of secondary alveolar septa occurs primarily after birth in humans and is complete in mice postnatally, when mechanical stresses vary as air space pressure oscillates. Alveolar mesenchymal cells deposit elastic fibers, which limit cell strain; although when the elastic fiber network is incomplete, this function is also served by the intracellular cytoskeleton. Intermediate filament proteins support deformation during cell division and migration, which occur during septal elongation. Because platelet-derived growth factor receptor-α (PDGFRα) signaling is essential for alveolar septation, we hypothesized that neuropilin-1 (NRP1) may link PDGFRα to cytoskeletal deformation. During cell migration, NRP1 links receptor tyrosine kinase signaling to cytoskeletal and focal adhesion remodeling. Therefore, we examined the consequences of nrp1 gene deletion in alveolar mesenchymal cells (myofibroblasts and pericytes). NRP1 depletion reduced the proportion of mesenchymal cells that contain nestin and desmin within the subpopulation that lacked PDGFRα but contained PDGFRβ. Desmin was reduced at alveolar entry rings, air spaces were enlarged, and surface area was reduced after NRP1 depletion. PDGFRα and NRP1 colocalized to membrane lipid rafts, which are known to contain Src kinase. NRP1 depletion reduced alveolar mesenchymal cell migration and PDGF-A-mediated activation of Src kinase, which may limit accumulation of desmin at septal tips (alveolar entry rings). Cooperation between NRP1 and PDGF signaling is required for secondary septation, and manipulation of NRP1 could promote alveolar regeneration without producing fibrosis.
Collapse
Affiliation(s)
- Stephen E McGowan
- Department of Veterans Affairs Research Service and Department of Internal Medicine, University of Iowa Carver College of Medicine , Iowa City, Iowa
| | - Diann M McCoy
- Department of Veterans Affairs Research Service and Department of Internal Medicine, University of Iowa Carver College of Medicine , Iowa City, Iowa
| |
Collapse
|
38
|
Zhang X, Zhou Y, Li H, Wang R, Yang D, Li B, Fu J. Intravenous administration of DPSCs and BDNF improves neurological performance in rats with focal cerebral ischemia. Int J Mol Med 2018; 41:3185-3194. [PMID: 29512704 PMCID: PMC5881652 DOI: 10.3892/ijmm.2018.3517] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2016] [Accepted: 02/12/2018] [Indexed: 12/16/2022] Open
Abstract
Dental pulp stem cells (DPSCs) are considered as an ideal stem cell source for the treatment of neurological diseases. In this study, we evaluated the therapeutic potency of DPSCs and brain-derived neurotrophic factor (BDNF) in focal cerebral ischemia using animal models. Following middle cerebral artery occlusion (MCAO), rats were randomized into four groups: the BDNF, DPSCs, DPSCs+BDNF and the controls injected with saline. DPSCs were transplanted and BDNF was injected into the DPSCs+BDNF group via the tail vein. The fate of the transplanted DPSCs in rat brains was evaluated using immunofluorescence, immunohistochemistry, western blot analysis and reverse transcription-polymerase chain reaction (RT-PCR). Adhesive removal tests and the modified neurological severity scores were used to estimate the restoration of neurological function. Proliferation of intravenously transplanted DPSCs was observed in the peripheral ischemic regions of the MCAO models. A green fluorescent dye PKH67 was used to label cells. PKH67-labeled DPSCs were co-localized with neuronal cell markers and 4′,6-diamidino-2-phenylindole (DAPI). DPSC transplantation combined with BDNF induced the expression of neural differentiation markers such as nestin, doublecortin (DCX) and neuronal specific filament (NF-H), suggesting that BDNF enhances the survival of DPSCs and differentiation into neuronal cells. Treatment with DPSCs combined with BDNF promoted the recovery of neurological function more effectively compared with BDNF injection or DPSC transplantation alone. In conclusion, treatment with DPSCs combined with BDNF enhances neurological recovery after stroke suggesting a novel therapeutic strategy against cerebral ischemia.
Collapse
Affiliation(s)
- Xuemei Zhang
- Department of Neurology, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150086, P.R. China
| | - Yinglian Zhou
- Department of Neurology, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150086, P.R. China
| | - Hulun Li
- Department of Neurobiology, Neurobiology Key Laboratory, Harbin Medical University, Harbin, Heilongjiang 150086, P.R. China
| | - Rui Wang
- Department of Neurology, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150086, P.R. China
| | - Dan Yang
- Department of Neurology, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150086, P.R. China
| | - Bing Li
- Department of Neurology, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150086, P.R. China
| | - Jin Fu
- Department of Neurology, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150086, P.R. China
| |
Collapse
|
39
|
Hu W, Lu H, Wang S, Yin W, Liu X, Dong L, Chiu R, Shen L, Lu WJ, Lan F. Suppression of Nestin reveals a critical role for p38-EGFR pathway in neural progenitor cell proliferation. Oncotarget 2018; 7:87052-87063. [PMID: 27894083 PMCID: PMC5349970 DOI: 10.18632/oncotarget.13498] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2016] [Accepted: 10/14/2016] [Indexed: 12/19/2022] Open
Abstract
The expression of intermediate filament Nestin is necessary for the neural progenitor cells (NPCs) to maintain stemness, but the underlying cellular and molecular mechanism remains unclear. In this study, we demonstrated that Nestin is required for the self-renew of NPCs through activating MAPK and EGFR pathways. Knockdown of Nestin by shRNA inhibited cell cycle progression and proliferation in mouse NPCs. Moreover, suppression of Nestin reduced expression of the epidermal growth factor receptor (EGFR) in NPCs and inhibited the mitogenic effects of EGF on these cells. Treatment of NPCs with p38-MAPK inhibitor PD169316 reversed cell cycle arrest caused by the knockdown of Nestin. Our findings indicate that Nestin promotes NPC proliferation via p38-MAPK and EGFR pathways, and reveals the necessity of these pathways in NPCs self-renewal.
Collapse
Affiliation(s)
- Wentao Hu
- Department of Neurology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Hong Lu
- Department of Neurology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Shang Wang
- Department of Neurology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Wenhan Yin
- Department of Neurology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Xujie Liu
- Beijing Institute of Heart, Lung and Blood Vessel Diseases, Beijing, China.,Beijing Lab for Cardiovascular Precision Medicine, Capital Medical University, Beijing, China.,The Key Laboratory of Remodeling-Related Cardiovascular Disease, Ministry of Education, Beijing, China.,Beijing Collaborative Innovation Center for Cardiovascular Disorders, Anzhen Hospital, Capital Medical University, Beijing, China.,Deparment of Radiological Medicine, Chongqing Medical University, Chongqing, China
| | - Lin Dong
- Department of Cell Biology Peking University Health Science Center, Beijing, China
| | - Richard Chiu
- Deparment of Radiology, Stanford University School of Medicine, Stanford, California, USA
| | - Li Shen
- Department of Cell Biology Peking University Health Science Center, Beijing, China
| | - Wen-Jing Lu
- Beijing Institute of Heart, Lung and Blood Vessel Diseases, Beijing, China.,Beijing Lab for Cardiovascular Precision Medicine, Capital Medical University, Beijing, China.,The Key Laboratory of Remodeling-Related Cardiovascular Disease, Ministry of Education, Beijing, China.,Beijing Collaborative Innovation Center for Cardiovascular Disorders, Anzhen Hospital, Capital Medical University, Beijing, China
| | - Feng Lan
- Beijing Institute of Heart, Lung and Blood Vessel Diseases, Beijing, China.,Beijing Lab for Cardiovascular Precision Medicine, Capital Medical University, Beijing, China.,The Key Laboratory of Remodeling-Related Cardiovascular Disease, Ministry of Education, Beijing, China.,Beijing Collaborative Innovation Center for Cardiovascular Disorders, Anzhen Hospital, Capital Medical University, Beijing, China
| |
Collapse
|
40
|
Chang CH, Liu WT, Hung HC, Gean CY, Tsai HM, Su CL, Gean PW. Synergistic inhibition of tumor growth by combination treatment with drugs against different subpopulations of glioblastoma cells. BMC Cancer 2017; 17:905. [PMID: 29284440 PMCID: PMC5747127 DOI: 10.1186/s12885-017-3924-y] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2016] [Accepted: 12/14/2017] [Indexed: 12/28/2022] Open
Abstract
Background Glioma stem cells (GSCs) contribute to tumor recurrence and drug resistance. This study characterizes the tumorigenesis of CD133+ cells and their sensitivity to pharmacological inhibition. Methods GSCs from human U87 and rat C6 glioblastoma cell lines were isolated via magnetic cell sorting using CD133 as a cancer stem cell marker. Cell proliferation was determined using the WST-1 assay. An intracranial mouse model and bioluminescence imaging were used to assess the effects of drugs on tumor growth in vivo. Results CD133+ cells expressed stem cell markers and exhibited self-renewal and enhanced tumor formation. Minocycline (Mino) was more effective in reducing the survival rate of CD133+ cells, whereas CD133− cells were more sensitive to inhibition by the signal transducer and activator of transcription 3 (STAT3) inhibitor. Inhibition of STAT3 decreased the expression of CD133+ stem cell markers. The combination of Mino and STAT3 inhibitor synergistically reduced the cell viability of glioma cells. Furthermore, this combination synergistically suppressed tumor growth in nude mice. Conclusion The results suggest that concurrent targeting of different subpopulations of glioblastoma cells may be an effective therapeutic strategy for patients with malignant glioma.
Collapse
Affiliation(s)
- Chia-Hsin Chang
- Department of Pharmacology, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Wei-Ting Liu
- Department of Pharmacology, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Hui-Chi Hung
- Department of Pharmacology, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Chia-Yu Gean
- Department of Diagnostic Radiology, National Cheng Kung University Hospital, Tainan, Taiwan
| | - Hong-Ming Tsai
- Department of Diagnostic Radiology, National Cheng Kung University Hospital, Tainan, Taiwan
| | - Chun-Lin Su
- Department of Pharmacology, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Po-Wu Gean
- Department of Pharmacology, College of Medicine, National Cheng Kung University, Tainan, Taiwan. .,Department of Biotechnology and Bioindustry Sciences, College of Bioscience and Biotechnology, National Cheng Kung University, Tainan, Taiwan.
| |
Collapse
|
41
|
Ye XC, Hu JX, Li L, Li Q, Tang FL, Lin S, Sun D, Sun XD, Cui GY, Mei L, Xiong WC. Astrocytic Lrp4 (Low-Density Lipoprotein Receptor-Related Protein 4) Contributes to Ischemia-Induced Brain Injury by Regulating ATP Release and Adenosine-A 2AR (Adenosine A2A Receptor) Signaling. Stroke 2017; 49:165-174. [PMID: 29212737 DOI: 10.1161/strokeaha.117.018115] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2017] [Revised: 10/27/2017] [Accepted: 11/03/2017] [Indexed: 12/28/2022]
Abstract
BACKGROUND AND PURPOSE Lrp4 (low-density lipoprotein receptor-related protein 4) is predominantly expressed in astrocytes, where it regulates glutamatergic neurotransmission by suppressing ATP release. Here, we investigated Lrp4's function in ischemia/stroke-induced brain injury response, which includes glutamate-induced neuronal death and reactive astrogliosis. METHODS The brain-specific Lrp4 conditional knockout mice (Lrp4GFAP-Cre), astrocytic-specific Lrp4 conditional knockout mice (Lrp4GFAP-creER), and their control mice (Lrp4f/f) were subjected to photothrombotic ischemia and the transient middle cerebral artery occlusion. After ischemia/stroke, mice or their brain samples were subjected to behavior tests, brain histology, immunofluorescence staining, Western blot, and quantitative real-time polymerase chain reaction. In addition, primary astrocytes and neurons were cocultured with or without oxygen and glucose deprivation and in the presence or absence of the antagonist for adenosine-A2AR (adenosine A2A receptor) or ATP-P2X7R (P2X purinoceptor 7) signaling. Gliotransmitters, such as glutamate, d-serine, ATP, and adenosine, in the condition medium of cultured astrocytes were also measured. RESULTS Lrp4, largely expressed in astrocytes, was increased in response to ischemia/stroke. Both Lrp4GFAP-Cre and Lrp4GFAP-creER mice showed less brain injury, including reduced neuronal death, and impaired reactive astrogliosis. Mechanistically, Lrp4 conditional knockout in astrocytes increased ATP release and the production of ATP derivative, adenosine, which were further elevated by oxygen and glucose deprivation. Pharmacological inhibition of ATP-P2X7R or adenosine-A2AR signaling diminished Lrp4GFAP-creER's protective effect. CONCLUSIONS The astrocytic Lrp4 plays an important role in ischemic brain injury response. Lrp4 deficiency in astrocytes seems to be protective in response to ischemic brain injury, likely because of the increased ATP release and adenosine-A2AR signaling.
Collapse
Affiliation(s)
- Xin-Chun Ye
- From the Department of Neuroscience and Regenerative Medicine (X.-C.Y., J.-X.H., L.L., Q.L., F.-L.T., S.L., D.S., X.-D.S., L.M., W.-C.X.) and Department of Neurology (X.-C.Y., J.-X.H., L.L., Q.L., F.-L.T., S.L., D.S., X.-D.S., L.M., W.-C.X.), Medical College of Georgia, Augusta University; Institute of Nervous System Diseases (X.-C.Y., J.-X.H.) and Department of Neurology, The Affiliated Hospital of Xuzhou Medical University (X.-C.Y., J.-X.H., G.-Y.C.), Xuzhou Medical University, Jiangsu, China; and Department of Hand Surgery, China Japan Union Hospital, Jilin University, Changchun (Q.L.)
| | - Jin-Xia Hu
- From the Department of Neuroscience and Regenerative Medicine (X.-C.Y., J.-X.H., L.L., Q.L., F.-L.T., S.L., D.S., X.-D.S., L.M., W.-C.X.) and Department of Neurology (X.-C.Y., J.-X.H., L.L., Q.L., F.-L.T., S.L., D.S., X.-D.S., L.M., W.-C.X.), Medical College of Georgia, Augusta University; Institute of Nervous System Diseases (X.-C.Y., J.-X.H.) and Department of Neurology, The Affiliated Hospital of Xuzhou Medical University (X.-C.Y., J.-X.H., G.-Y.C.), Xuzhou Medical University, Jiangsu, China; and Department of Hand Surgery, China Japan Union Hospital, Jilin University, Changchun (Q.L.)
| | - Lei Li
- From the Department of Neuroscience and Regenerative Medicine (X.-C.Y., J.-X.H., L.L., Q.L., F.-L.T., S.L., D.S., X.-D.S., L.M., W.-C.X.) and Department of Neurology (X.-C.Y., J.-X.H., L.L., Q.L., F.-L.T., S.L., D.S., X.-D.S., L.M., W.-C.X.), Medical College of Georgia, Augusta University; Institute of Nervous System Diseases (X.-C.Y., J.-X.H.) and Department of Neurology, The Affiliated Hospital of Xuzhou Medical University (X.-C.Y., J.-X.H., G.-Y.C.), Xuzhou Medical University, Jiangsu, China; and Department of Hand Surgery, China Japan Union Hospital, Jilin University, Changchun (Q.L.)
| | - Qiang Li
- From the Department of Neuroscience and Regenerative Medicine (X.-C.Y., J.-X.H., L.L., Q.L., F.-L.T., S.L., D.S., X.-D.S., L.M., W.-C.X.) and Department of Neurology (X.-C.Y., J.-X.H., L.L., Q.L., F.-L.T., S.L., D.S., X.-D.S., L.M., W.-C.X.), Medical College of Georgia, Augusta University; Institute of Nervous System Diseases (X.-C.Y., J.-X.H.) and Department of Neurology, The Affiliated Hospital of Xuzhou Medical University (X.-C.Y., J.-X.H., G.-Y.C.), Xuzhou Medical University, Jiangsu, China; and Department of Hand Surgery, China Japan Union Hospital, Jilin University, Changchun (Q.L.)
| | - Fu-Lei Tang
- From the Department of Neuroscience and Regenerative Medicine (X.-C.Y., J.-X.H., L.L., Q.L., F.-L.T., S.L., D.S., X.-D.S., L.M., W.-C.X.) and Department of Neurology (X.-C.Y., J.-X.H., L.L., Q.L., F.-L.T., S.L., D.S., X.-D.S., L.M., W.-C.X.), Medical College of Georgia, Augusta University; Institute of Nervous System Diseases (X.-C.Y., J.-X.H.) and Department of Neurology, The Affiliated Hospital of Xuzhou Medical University (X.-C.Y., J.-X.H., G.-Y.C.), Xuzhou Medical University, Jiangsu, China; and Department of Hand Surgery, China Japan Union Hospital, Jilin University, Changchun (Q.L.)
| | - Sen Lin
- From the Department of Neuroscience and Regenerative Medicine (X.-C.Y., J.-X.H., L.L., Q.L., F.-L.T., S.L., D.S., X.-D.S., L.M., W.-C.X.) and Department of Neurology (X.-C.Y., J.-X.H., L.L., Q.L., F.-L.T., S.L., D.S., X.-D.S., L.M., W.-C.X.), Medical College of Georgia, Augusta University; Institute of Nervous System Diseases (X.-C.Y., J.-X.H.) and Department of Neurology, The Affiliated Hospital of Xuzhou Medical University (X.-C.Y., J.-X.H., G.-Y.C.), Xuzhou Medical University, Jiangsu, China; and Department of Hand Surgery, China Japan Union Hospital, Jilin University, Changchun (Q.L.)
| | - Dong Sun
- From the Department of Neuroscience and Regenerative Medicine (X.-C.Y., J.-X.H., L.L., Q.L., F.-L.T., S.L., D.S., X.-D.S., L.M., W.-C.X.) and Department of Neurology (X.-C.Y., J.-X.H., L.L., Q.L., F.-L.T., S.L., D.S., X.-D.S., L.M., W.-C.X.), Medical College of Georgia, Augusta University; Institute of Nervous System Diseases (X.-C.Y., J.-X.H.) and Department of Neurology, The Affiliated Hospital of Xuzhou Medical University (X.-C.Y., J.-X.H., G.-Y.C.), Xuzhou Medical University, Jiangsu, China; and Department of Hand Surgery, China Japan Union Hospital, Jilin University, Changchun (Q.L.)
| | - Xiang-Dong Sun
- From the Department of Neuroscience and Regenerative Medicine (X.-C.Y., J.-X.H., L.L., Q.L., F.-L.T., S.L., D.S., X.-D.S., L.M., W.-C.X.) and Department of Neurology (X.-C.Y., J.-X.H., L.L., Q.L., F.-L.T., S.L., D.S., X.-D.S., L.M., W.-C.X.), Medical College of Georgia, Augusta University; Institute of Nervous System Diseases (X.-C.Y., J.-X.H.) and Department of Neurology, The Affiliated Hospital of Xuzhou Medical University (X.-C.Y., J.-X.H., G.-Y.C.), Xuzhou Medical University, Jiangsu, China; and Department of Hand Surgery, China Japan Union Hospital, Jilin University, Changchun (Q.L.)
| | - Gui-Yun Cui
- From the Department of Neuroscience and Regenerative Medicine (X.-C.Y., J.-X.H., L.L., Q.L., F.-L.T., S.L., D.S., X.-D.S., L.M., W.-C.X.) and Department of Neurology (X.-C.Y., J.-X.H., L.L., Q.L., F.-L.T., S.L., D.S., X.-D.S., L.M., W.-C.X.), Medical College of Georgia, Augusta University; Institute of Nervous System Diseases (X.-C.Y., J.-X.H.) and Department of Neurology, The Affiliated Hospital of Xuzhou Medical University (X.-C.Y., J.-X.H., G.-Y.C.), Xuzhou Medical University, Jiangsu, China; and Department of Hand Surgery, China Japan Union Hospital, Jilin University, Changchun (Q.L.)
| | - Lin Mei
- From the Department of Neuroscience and Regenerative Medicine (X.-C.Y., J.-X.H., L.L., Q.L., F.-L.T., S.L., D.S., X.-D.S., L.M., W.-C.X.) and Department of Neurology (X.-C.Y., J.-X.H., L.L., Q.L., F.-L.T., S.L., D.S., X.-D.S., L.M., W.-C.X.), Medical College of Georgia, Augusta University; Institute of Nervous System Diseases (X.-C.Y., J.-X.H.) and Department of Neurology, The Affiliated Hospital of Xuzhou Medical University (X.-C.Y., J.-X.H., G.-Y.C.), Xuzhou Medical University, Jiangsu, China; and Department of Hand Surgery, China Japan Union Hospital, Jilin University, Changchun (Q.L.)
| | - Wen-Cheng Xiong
- From the Department of Neuroscience and Regenerative Medicine (X.-C.Y., J.-X.H., L.L., Q.L., F.-L.T., S.L., D.S., X.-D.S., L.M., W.-C.X.) and Department of Neurology (X.-C.Y., J.-X.H., L.L., Q.L., F.-L.T., S.L., D.S., X.-D.S., L.M., W.-C.X.), Medical College of Georgia, Augusta University; Institute of Nervous System Diseases (X.-C.Y., J.-X.H.) and Department of Neurology, The Affiliated Hospital of Xuzhou Medical University (X.-C.Y., J.-X.H., G.-Y.C.), Xuzhou Medical University, Jiangsu, China; and Department of Hand Surgery, China Japan Union Hospital, Jilin University, Changchun (Q.L.).
| |
Collapse
|
42
|
Qin W, Chen S, Yang S, Xu Q, Xu C, Cai J. The Effect of Traditional Chinese Medicine on Neural Stem Cell Proliferation and Differentiation. Aging Dis 2017; 8:792-811. [PMID: 29344417 PMCID: PMC5758352 DOI: 10.14336/ad.2017.0428] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2016] [Accepted: 04/28/2017] [Indexed: 12/12/2022] Open
Abstract
Neural stem cells (NSCs) are special types of cells with the potential for self-renewal and multi-directional differentiation. NSCs are regulated by multiple pathways and pathway related transcription factors during the process of proliferation and differentiation. Numerous studies have shown that the compound medicinal preparations, single herbs, and herb extracts in traditional Chinese medicine (TCM) have specific roles in regulating the proliferation and differentiation of NSCs. In this study, we investigate the markers of NSCs in various stages of differentiation, the related pathways regulating the proliferation and differentiation, and the corresponding transcription factors in the pathways. We also review the influence of TCM on NSC proliferation and differentiation, to facilitate the development of TCM in neural regeneration and neurodegenerative diseases.
Collapse
Affiliation(s)
- Wei Qin
- 1Academy of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou 350122, China
| | - Shiya Chen
- 1Academy of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou 350122, China
| | - Shasha Yang
- 1Academy of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou 350122, China
| | - Qian Xu
- 2College of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou 350122, China
| | - Chuanshan Xu
- 3School of Chinese Medicine, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong
| | - Jing Cai
- 2College of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou 350122, China
| |
Collapse
|
43
|
Pu J, Mao Y, Xu L, Zheng T, Zhang B. Stable cell lines of human SH-SY5Y uniformly expressing wild-type or mutant-type FERM domain containing 7 gene. Exp Ther Med 2017; 14:2277-2283. [PMID: 28962155 DOI: 10.3892/etm.2017.4730] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2016] [Accepted: 03/24/2017] [Indexed: 11/05/2022] Open
Abstract
It has been reported that FERM domain containing 7 (FRMD7) may cause X-linked idiopathic congenital nystagmus (ICN). A total of >40 mutations of the FRMD7 gene have been identified, however their pathogenic role remains unclear. In the present study, enhanced green fluorescent protein-tagged wild-type (WT) and mutant (MT) FRMD7 (c. C781>G) were expressed in stably expressing human neuroblastoma SH-SY5Y cells following viral transfection and antibiotic selection. Uniform expression of the FRMD7 fusion proteins was confirmed via fluorescence microscopy and western blotting. The expression profiles of neuron-specific proteins and Rho guanine triphosphatases (GTPases) differed significantly between the wild-type and mutant cell lines. Levels of Mtap2, NF-M, nestin, GAP43 and Rac1 mRNA were significantly increased in MT-FRMD7 cells compared with controls (P<0.01). However, the expression of Rac1 protein did not differ significantly among the two cell lines. Taken together, the results of the current study suggest that MT-FRMD7 influences the expression of neuron-specific genes and Rho GTPases, which may be involved in the pathogenesis of ICN. The FRMD7 stable expression cell line may facilitate future studies investigating the role of this protein in neuronal development.
Collapse
Affiliation(s)
- Jiali Pu
- Department of Neurology, The Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang 310009, P.R. China
| | - Yanfang Mao
- Department of Neurology, The Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang 310009, P.R. China
| | - Lingjia Xu
- Department of Neurology, The Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang 310009, P.R. China
| | - Tingting Zheng
- Department of Neurology, The Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang 310009, P.R. China
| | - Baorong Zhang
- Department of Neurology, The Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang 310009, P.R. China
| |
Collapse
|
44
|
Tudrej KB, Czepielewska E, Kozłowska-Wojciechowska M. SOX10-MITF pathway activity in melanoma cells. Arch Med Sci 2017; 13:1493-1503. [PMID: 29181082 PMCID: PMC5701683 DOI: 10.5114/aoms.2016.60655] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/15/2016] [Accepted: 05/16/2016] [Indexed: 01/28/2023] Open
Abstract
Melanoma is one of the most dangerous and lethal skin cancers, with a considerable metastatic potential and drug resistance. It involves a malignant transformation of melanocytes. The exact course of events in which melanocytes become melanoma cells remains unclear. Nevertheless, this process is said to be dependent on the occurrence of cells with the phenotype of progenitor cells - cells characterized by expression of proteins such as nestin, CD-133 or CD-271. The development of these cells and their survival were found to be potentially dependent on the neural crest stem cell transcription factor SOX10. This is just one of the possible roles of SOX10, which contributes to melanomagenesis by regulating the SOX10-MITF pathway, but also to melanoma cell survival, proliferation and metastasis formation. The aim of this review is to describe the broad influence of the SOX10-MITF pathway on melanoma cells.
Collapse
Affiliation(s)
- Karol B Tudrej
- Department of Clinical Pharmacology and Pharmaceutical Care, Medical University of Warsaw, Warsaw, Poland
| | - Edyta Czepielewska
- Department of Clinical Pharmacology and Pharmaceutical Care, Medical University of Warsaw, Warsaw, Poland
| | | |
Collapse
|
45
|
Andrographolide Promotes Neural Differentiation of Rat Adipose Tissue-Derived Stromal Cells through Wnt/ β-Catenin Signaling Pathway. BIOMED RESEARCH INTERNATIONAL 2017; 2017:4210867. [PMID: 29085837 PMCID: PMC5632471 DOI: 10.1155/2017/4210867] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/21/2017] [Revised: 06/05/2017] [Accepted: 08/06/2017] [Indexed: 12/17/2022]
Abstract
Adipose tissue-derived stromal cells (ADSCs) are a high-yield source of pluripotent stem cells for use in cell-based therapies. We explored the effect of andrographolide (ANDRO, one of the ingredients of the medicinal herb extract) on the neural differentiation of rat ADSCs and associated molecular mechanisms. We observed that rat ADSCs were small and spindle-shaped and expressed multiple stem cell markers including nestin. They were multipotent as evidenced by adipogenic, osteogenic, chondrogenic, and neural differentiation under appropriate conditions. The proportion of cells exhibiting neural-like morphology was higher, and neurites developed faster in the ANDRO group than in the control group in the same neural differentiation medium. Expression levels of the neural lineage markers MAP2, tau, GFAP, and β-tubulin III were higher in the ANDRO group. ANDRO induced a concentration-dependent increase in Wnt/β-catenin signaling as evidenced by the enhanced expression of nuclear β-catenin and the inhibited form of GSK-3β (pSer9). Thus, this study shows for the first time how by enhancing the neural differentiation of ADSCs we expect that ANDRO pretreatment may increase the efficacy of adult stem cell transplantation in nervous system diseases, but more exploration is needed.
Collapse
|
46
|
Wilking-Busch MJ, Ndiaye MA, Liu X, Ahmad N. RNA interference-mediated knockdown of SIRT1 and/or SIRT2 in melanoma: Identification of downstream targets by large-scale proteomics analysis. J Proteomics 2017; 170:99-109. [PMID: 28882678 DOI: 10.1016/j.jprot.2017.09.002] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2017] [Revised: 08/14/2017] [Accepted: 09/03/2017] [Indexed: 02/07/2023]
Abstract
Melanoma is the most notorious and fatal of all skin cancers and the existing treatment options have not been proven to effectively manage this neoplasm, especially the metastatic disease. Sirtuin (SIRT) proteins have been shown to be differentially expressed in melanoma. We have shown that SIRTs 1 and 2 were overexpressed in melanoma and inhibition of SIRT1 imparts anti-proliferative responses in human melanoma cells. To elucidate the impact of SIRT 1 and/or 2 in melanoma, we created stable knockdowns of SIRTs 1, 2, and their combination using shRNA mediated RNA interference in A375 human melanoma cells. We found that SIRT1 and SIRT1&2 combination knockdown caused a decreased cellular proliferation in melanoma cells. Further, the knockdown of SIRT 1 and/or 2 resulted in a decreased colony formation in melanoma cells. To explore the downstream targets of SIRTs 1 and/or 2, we employed a label-free quantitative nano-LC-MS/MS proteomics analysis using the stable lines. We found aberrant levels of proteins involved in many vital cellular processes, including cytoskeletal organization, ribosomal activity, oxidative stress response, and angiogenesis. These findings provide clear evidence of cellular systems undergoing alterations in response to sirtuin inhibition, and have unveiled several excellent candidates for future study. SIGNIFICANCE Melanoma is the deadliest form of skin cancer, due to its aggressive nature, metastatic potential, and a lack of sufficient treatment options for advanced disease. Therefore, detailed investigations into the molecular mechanisms of melanoma growth and progression are needed. In the search for candidate genes to serve as therapeutic targets, the sirtuins show promise as they have been found to be upregulated in melanoma and they regulate a large number of proteins involved in cellular processes known to affect tumor growth, such as DNA damage repair, cell cycle arrest, and apoptosis. In this study, we used a large-scale label-free comparative proteomics system to identify novel protein targets that are affected following knockdown of SIRT1 and/or 2 in A375 metastatic melanoma cell line. Our study offers important insight into the potential downstream targets of SIRTs 1 and/or 2. This may unravel new potential areas of exploration in melanoma research.
Collapse
Affiliation(s)
- Melissa J Wilking-Busch
- Department of Dermatology, University of Wisconsin, 1300 University Avenue, Madison, WI 53706, USA
| | - Mary A Ndiaye
- Department of Dermatology, University of Wisconsin, 1300 University Avenue, Madison, WI 53706, USA
| | - Xiaoqi Liu
- Department of Biochemistry, Purdue University, 175 S. University Street, West Lafayette, IN, USA
| | - Nihal Ahmad
- Department of Dermatology, University of Wisconsin, 1300 University Avenue, Madison, WI 53706, USA; William S. Middleton VA Medical Center, 2500 Overlook Terrace, Madison, WI 53705, USA.
| |
Collapse
|
47
|
Neuronal Regeneration after Electroacupuncture Treatment in Ischemia-Reperfusion-Injured Cerebral Infarction Rats. BIOMED RESEARCH INTERNATIONAL 2017; 2017:3178014. [PMID: 28913350 PMCID: PMC5587926 DOI: 10.1155/2017/3178014] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/20/2017] [Revised: 06/27/2017] [Accepted: 07/20/2017] [Indexed: 01/30/2023]
Abstract
Adult neuronal cells which can regenerate have been reported. The present study investigated whether acupuncture enhances neuronal regeneration in ischemic stroke rats. We established an ischemic stroke rat model by occluding the cerebral blood flow of the right middle cerebral artery for 15 minutes and then allowing reperfusion in Sprague–Dawley rats. The results indicated that, in these rats, 2 Hz electroacupuncture (EA) at both Zusanli (ST36) and Shangjuxu (ST37) acupoints reduced the infarction/hemisphere ratio 8 days after reperfusion and reduced the modified neurological severity score (mNSS) and increased the rotarod test time 4 and 8 days after reperfusion, respectively. In addition, 2 Hz reduced nestin immunoreactive cells in the penumbra area and the ischemic core area; 2 Hz EA also reduced Ki67 immunoreactive cells and increased glial fibrillary acidic protein immunoreactive cells in the penumbra area. These findings suggest that 2 Hz EA at the ST36 and ST37 acupoints has a neuroprotective role. However, additional studies are needed to further investigate these preliminary results.
Collapse
|
48
|
Gordon RE, Zhang L, Yang ZJ. Restore the brake on tumor progression. Biochem Pharmacol 2017; 138:1-6. [PMID: 28389227 DOI: 10.1016/j.bcp.2017.04.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2017] [Accepted: 04/03/2017] [Indexed: 11/19/2022]
Abstract
Sonic hedgehog (Shh) signaling plays a key role in regulation of normal development. The negative feedback mechanism mediated by the transcriptional factor, Gli3, acts to finely tune Shh signaling, providing tight control of normal developmental processes. Hyperactivation of Shh signaling often leads to many human malignancies, including basal cell carcinoma and medulloblastoma (MB). However, how tumor cells sustain the aberrant activation of Shh signaling is still not completely understood. We recently revealed that during MB formation, tumor cells express Nestin, a type VI intermediate filament protein, which maintains uncontrolled Shh signaling by abolishing negative feedback by Gli3. Therefore, Nestin expression is a necessary step for MB formation. These findings highlight the novel function of Nestin in regulating Shh signaling, as well as the important role of a disrupted negative feedback mechanism in MB tumorigenesis. Further, restoration of the intrinsic negative feedback by repressing Nestin expression represents a promising approach to treat MB as well as other Shh signaling associated malignancies.
Collapse
Affiliation(s)
- Renata E Gordon
- Cancer Biology Program, Fox Chase Cancer Center, Temple University Health System, Philadelphia, PA 19111, USA
| | - Li Zhang
- Laboratory of Molecular Neuropathology, College of Pharmaceutical Sciences, Soochow University, Suzhou, Jiangsu 215021, China
| | - Zeng-Jie Yang
- Cancer Biology Program, Fox Chase Cancer Center, Temple University Health System, Philadelphia, PA 19111, USA; Laboratory of Molecular Neuropathology, College of Pharmaceutical Sciences, Soochow University, Suzhou, Jiangsu 215021, China.
| |
Collapse
|
49
|
Adolescent binge ethanol exposure alters specific forebrain cholinergic cell populations and leads to selective functional deficits in the prefrontal cortex. Neuroscience 2017; 361:129-143. [PMID: 28807788 DOI: 10.1016/j.neuroscience.2017.08.013] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2017] [Revised: 08/02/2017] [Accepted: 08/06/2017] [Indexed: 01/06/2023]
Abstract
Adolescence has been identified as a vulnerable developmental time period during which exposure to drugs can have long-lasting, detrimental effects. Although adolescent binge-like ethanol (EtOH) exposure leads to a significant reduction in forebrain cholinergic neurons, EtOH's functional effect on acetylcholine (ACh) release during behavior has yet to be examined. Using an adolescent intermittent ethanol exposure model (AIE), rats were exposed to binge-like levels of EtOH from postnatal days (PD) 25 to 55. Three weeks following the final EtOH exposure, cholinergic functioning was assessed during a spontaneous alternation protocol. During maze testing, ACh levels increased in both the hippocampus and prefrontal cortex. However, selectively in the prefrontal cortex, AIE rats displayed reduced levels of behaviorally relevant ACh efflux. We found no treatment differences in spatial exploration, spatial learning, spatial reversal, or novel object recognition. In contrast, AIE rats were impaired during the first attentional set shift on an operant set-shifting task, indicative of an EtOH-mediated deficit in cognitive flexibility. A unique pattern of cholinergic cell loss was observed in the basal forebrain following AIE: Within the medial septum/diagonal band there was a selective loss (30%) of choline acetyltransferase (ChAT)-positive neurons that were nestin negative (ChAT+/nestin-); whereas in the Nucleus basalis of Meynert (NbM) there was a selective reduction (50%) in ChAT+/nestin+. These results indicate that early adolescent binge EtOH exposure leads to a long-lasting frontocortical functional cholinergic deficit, driven by a loss of ChAT+/nestin+ neurons in the NbM, which was associated with impaired cognitive flexibility during adulthood.
Collapse
|
50
|
Wu W, Wu XL, Ji YQ, Gao Z. Differentiation of nestin‑negative human hair follicle outer root sheath cells into neurons in vitro. Mol Med Rep 2017; 16:95-100. [PMID: 28534946 PMCID: PMC5482136 DOI: 10.3892/mmr.2017.6585] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2016] [Accepted: 02/21/2017] [Indexed: 01/18/2023] Open
Abstract
A specialized quiescent population of hair follicle stem cells, residing in the hair follicle outer root sheath cells (ORSCs), has previously demonstrated pluripotency for differentiation into neural stem cells (NSCs). A previous study indicated that nestin-positive hair follicle ORSCs are able to differentiate into neurons. However, little has been reported on the isolation of nestin-negative human ORSCs and whether they can successfully differentiate into neurons in vitro. In the present study, nestin-positive ORSCs were significantly reduced with a prolonged incubation time in vitro. Following 9 days of primary culture, nestin-expressing ORSCs disappeared entirely, and ORSCs remained nestin-negative following 5 days of subculture. Notably, nestin was identified in ORSCs following a three-step process of neuro-induction. In addition, neruodevelopmental markers were detected in the ORSC-derived nestin-positive spherical cell mass, including the induction of the neuronal specific markers growth associated protein-43, neurotensin receptor-3 and p75 neurotrophin receptor, and also the gliocyte markers, glial fibrillary acidic protein and S100. These sphere-forming cells did not express the mature neuron-associated markers neurofilament medium, neuronal nuclei and neuron-specific enolase, which suggested that sphere-forming cells may preferentially differentiate into neural stem cell-like cells as opposed to mature neurons or neurogliocyte. In conclusion, ORSC-driven neural differentiation may be a suitable treatment strategy for neurodegenerative diseases and may possess an important value in regenerative medicine.
Collapse
Affiliation(s)
- Wei Wu
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, P.R. China
| | - Xiao-Li Wu
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, P.R. China
| | - Yu-Qing Ji
- Department of Plastic and Reconstructive Surgery, Shanghai General Hospital, Shanghai 200080, P.R. China
| | - Zhen Gao
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, P.R. China
| |
Collapse
|