1
|
Gindri Dos Santos B, Maciel August P, Santos Rocha D, Mesquita I, Menegotto M, Stone V, Matté C. Late pregnancy maternal naringin supplementation affects the mitochondria in the cerebellum of Wistar rat offspring via sirtuin 3 and AKT. Int J Dev Neurosci 2024; 84:122-133. [PMID: 38238938 DOI: 10.1002/jdn.10313] [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: 08/20/2023] [Revised: 12/01/2023] [Accepted: 12/24/2023] [Indexed: 04/04/2024] Open
Abstract
Dietary polyphenol consumption is associated with a wide range of neuroprotective effects by improving mitochondrial function and signaling. Consequently, the use of polyphenol supplementation has been investigated as an approach to prevent neurodevelopmental diseases during gestation; however, the data obtained are still very inconclusive, mostly because of the difficulty of choosing the correct doses and period of administration to properly prevent neurodegenerative diseases without undermining normal brain development. Thus, we aimed to evaluate the effect of naringin supplementation during the third week of gestation on mitochondrial health and signaling in the cerebellum of 21-day-old offspring. The offspring born to naringin-supplemented dams displayed higher mitochondrial mass, membrane potential, and superoxide content in the cerebellum without protein oxidative damage. Such alterations were associated with dynamin-related protein 1 (DRP1) and phosphorylated AKT (p-AKT) downregulation, whereas the sirtuin 3 (SIRT3) levels were strongly upregulated. Our findings suggest that high dietary polyphenol supplementation during gestation may reduce mitochondrial fission and affect mitochondrial dynamics even 3 weeks after delivery via SIRT3 and p-AKT. Although the offspring born to naringin dams did not present neurobehavioral defects, the mitochondrial alterations elicited by naringin may potentially interfere during neurodevelopment and need to be further investigated.
Collapse
Affiliation(s)
- Bernardo Gindri Dos Santos
- Programa de Pós-Graduação em Ciências Biológicas - Bioquímica, Departamento de Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Pauline Maciel August
- Departamento de Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Débora Santos Rocha
- Departamento de Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Ismael Mesquita
- Programa de Pós-Graduação em Ciências Biológicas - Bioquímica, Departamento de Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Manuela Menegotto
- Departamento de Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Vinícius Stone
- Programa de Pós-Graduação em Ciências Biológicas - Bioquímica, Departamento de Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Cristiane Matté
- Programa de Pós-Graduação em Ciências Biológicas - Bioquímica, Departamento de Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
- Departamento de Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
- Programa de Pós-graduação em Ciências Biológicas - Fisiologia, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| |
Collapse
|
2
|
Herrero-Labrador R, Fernández-Irigoyen J, Vecino R, González-Arias C, Ausín K, Crespo I, Fernández Acosta FJ, Nieto-Estévez V, Román MJ, Perea G, Torres-Alemán I, Santamaría E, Vicario C. Brain IGF-I regulates LTP, spatial memory, and sexual dimorphic behavior. Life Sci Alliance 2023; 6:e202201691. [PMID: 37463753 PMCID: PMC10355288 DOI: 10.26508/lsa.202201691] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Revised: 06/29/2023] [Accepted: 07/03/2023] [Indexed: 07/20/2023] Open
Abstract
Insulin-like growth factor-I (IGF-I) exerts multiple actions, yet the role of IGF-I from different sources is poorly understood. Here, we explored the functional and behavioral consequences of the conditional deletion of Igf-I in the nervous system (Igf-I Δ/Δ), and demonstrated that long-term potentiation was impaired in hippocampal slices. Moreover, Igf-I Δ/Δ mice showed spatial memory deficits in the Morris water maze, and the significant sex-dependent differences displayed by Igf-I Ctrl/Ctrl mice disappeared in Igf-I Δ/Δ mice in the open field and rota-rod tests. Brain Igf-I deletion disorganized the granule cell layer of the dentate gyrus (DG), and it modified the relative expressions of GAD and VGLUT1, which are preferentially localized to inhibitory and excitatory presynaptic terminals. Furthermore, Igf-I deletion altered protein modules involved in receptor trafficking, synaptic proteins, and proteins that functionally interact with estrogen and androgen metabolism. Our findings indicate that brain IGF-I is crucial for long-term potentiation, and that it is involved in the regulation of spatial memory and sexual dimorphic behaviors, possibly by maintaining the granule cell layer structure and the stability of synaptic-related protein modules.
Collapse
Affiliation(s)
- Raquel Herrero-Labrador
- Instituto Cajal, Consejo Superior de Investigaciones Científicas (CSIC), Madrid, Spain
- CIBERNED, Instituto de Salud Carlos III (ISCIII), Madrid, Spain
| | - Joaquín Fernández-Irigoyen
- Proteored-ISCIII, Proteomics Platform, Navarrabiomed, Hospital Universitario de Navarra (HUN), Universidad Pública de Navarra (UPNA), Instituto de Investigación Sanitaria de Navarra (IdiSNA), Pamplona, Spain
- Clinical Neuroproteomics Unit, Navarrabiomed, Hospital Universitario de Navarra (HUN), Universidad Pública de Navarra (UPNA), Instituto de Investigación Sanitaria de Navarra (IdiSNA), Pamplona, Spain
| | - Rebeca Vecino
- Instituto Cajal, Consejo Superior de Investigaciones Científicas (CSIC), Madrid, Spain
- CIBERNED, Instituto de Salud Carlos III (ISCIII), Madrid, Spain
| | | | - Karina Ausín
- Proteored-ISCIII, Proteomics Platform, Navarrabiomed, Hospital Universitario de Navarra (HUN), Universidad Pública de Navarra (UPNA), Instituto de Investigación Sanitaria de Navarra (IdiSNA), Pamplona, Spain
| | - Inmaculada Crespo
- Instituto Cajal, Consejo Superior de Investigaciones Científicas (CSIC), Madrid, Spain
- CIBERNED, Instituto de Salud Carlos III (ISCIII), Madrid, Spain
- CES Cardenal Cisneros, Madrid, Spain
| | | | - Vanesa Nieto-Estévez
- Instituto Cajal, Consejo Superior de Investigaciones Científicas (CSIC), Madrid, Spain
- CIBERNED, Instituto de Salud Carlos III (ISCIII), Madrid, Spain
| | - M José Román
- Instituto Cajal, Consejo Superior de Investigaciones Científicas (CSIC), Madrid, Spain
- CIBERNED, Instituto de Salud Carlos III (ISCIII), Madrid, Spain
| | - Gertrudis Perea
- Instituto Cajal, Consejo Superior de Investigaciones Científicas (CSIC), Madrid, Spain
| | - Ignacio Torres-Alemán
- Instituto Cajal, Consejo Superior de Investigaciones Científicas (CSIC), Madrid, Spain
- CIBERNED, Instituto de Salud Carlos III (ISCIII), Madrid, Spain
- Achucarro Basque Center for Neuroscience, and Ikerbasque Foundation for Science, Bilbao, Spain
| | - Enrique Santamaría
- Proteored-ISCIII, Proteomics Platform, Navarrabiomed, Hospital Universitario de Navarra (HUN), Universidad Pública de Navarra (UPNA), Instituto de Investigación Sanitaria de Navarra (IdiSNA), Pamplona, Spain
- Clinical Neuroproteomics Unit, Navarrabiomed, Hospital Universitario de Navarra (HUN), Universidad Pública de Navarra (UPNA), Instituto de Investigación Sanitaria de Navarra (IdiSNA), Pamplona, Spain
| | - Carlos Vicario
- Instituto Cajal, Consejo Superior de Investigaciones Científicas (CSIC), Madrid, Spain
- CIBERNED, Instituto de Salud Carlos III (ISCIII), Madrid, Spain
| |
Collapse
|
3
|
Podinić T, Werstuck G, Raha S. The Implications of Cannabinoid-Induced Metabolic Dysregulation for Cellular Differentiation and Growth. Int J Mol Sci 2023; 24:11003. [PMID: 37446181 DOI: 10.3390/ijms241311003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2023] [Revised: 06/27/2023] [Accepted: 06/28/2023] [Indexed: 07/15/2023] Open
Abstract
The endocannabinoid system (ECS) governs and coordinates several physiological processes through an integrated signaling network, which is responsible for inducing appropriate intracellular metabolic signaling cascades in response to (endo)cannabinoid stimulation. This intricate cellular system ensures the proper functioning of the immune, reproductive, and nervous systems and is involved in the regulation of appetite, memory, metabolism, and development. Cannabinoid receptors have been observed on both cellular and mitochondrial membranes in several tissues and are stimulated by various classes of cannabinoids, rendering the ECS highly versatile. In the context of growth and development, emerging evidence suggests a crucial role for the ECS in cellular growth and differentiation. Indeed, cannabinoids have the potential to disrupt key energy-sensing metabolic signaling pathways requiring mitochondrial-ER crosstalk, whose functioning is essential for successful cellular growth and differentiation. This review aims to explore the extent of cannabinoid-induced cellular dysregulation and its implications for cellular differentiation.
Collapse
Affiliation(s)
- Tina Podinić
- The Department of Pediatrics and the Graduate Program in Medical Sciences, McMaster University, Hamilton, ON L8S 4K1, Canada
| | - Geoff Werstuck
- Department of Medicine and the Thrombosis and Atherosclerosis Research Institute, David Braley Research Institute, McMaster University, Hamilton, ON L8L 2X2, Canada
| | - Sandeep Raha
- The Department of Pediatrics and the Graduate Program in Medical Sciences, McMaster University, Hamilton, ON L8S 4K1, Canada
| |
Collapse
|
4
|
Valeri A, Chiricosta L, D’Angiolini S, Pollastro F, Salamone S, Mazzon E. Cannabichromene Induces Neuronal Differentiation in NSC-34 Cells: Insights from Transcriptomic Analysis. Life (Basel) 2023; 13:life13030742. [PMID: 36983897 PMCID: PMC10051538 DOI: 10.3390/life13030742] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Revised: 03/06/2023] [Accepted: 03/07/2023] [Indexed: 03/12/2023] Open
Abstract
Phytocannabinoids, with their variety of beneficial effects, represent a valid group of substances that could be employed as neurogenesis-enhancers or neuronal differentiation inducers. We focused our attention on the neuronal-related potential of cannabichromene (CBC) when administered to undifferentiated NSC-34 for 24 h. Transcriptomic analysis showed an upregulation of several neuronal markers, such as Neurod1 and Tubb3, as well as indicators of neuronal differentiation process progression, such as Pax6. An in-depth investigation of the processes involved in neuronal differentiation indicates positive cytoskeleton remodeling by upregulation of Cfl2 and Tubg1, and active differentiation-targeted transcriptional program, suggested by Phox2b and Hes1. After 48 h of treatment, the markers previously examined in the transcriptomic analysis are still overexpressed, like Ache and Hes1, indicating that the differentiation process is still in progress. The lack of GFAP protein suggests that no astroglial differentiation is taking place, and it is reasonable to indicate the neuronal one as the ongoing one. These results indicate CBC as a potential neuronal differentiation inducer for NSC-34 cells.
Collapse
Affiliation(s)
- Andrea Valeri
- IRCCS Centro Neurolesi “Bonino-Pulejo”, Via Provinciale Palermo, Contrada Casazza, 98124 Messina, Italy
| | - Luigi Chiricosta
- IRCCS Centro Neurolesi “Bonino-Pulejo”, Via Provinciale Palermo, Contrada Casazza, 98124 Messina, Italy
| | - Simone D’Angiolini
- IRCCS Centro Neurolesi “Bonino-Pulejo”, Via Provinciale Palermo, Contrada Casazza, 98124 Messina, Italy
| | - Federica Pollastro
- Department of Pharmaceutical Sciences, University of Eastern Piedmont, Largo Donegani 2, 28100 Novara, Italy
- Plantachem S.r.l.s., Via Amico Canobio 4/6, 28100 Novara, Italy
| | - Stefano Salamone
- Department of Pharmaceutical Sciences, University of Eastern Piedmont, Largo Donegani 2, 28100 Novara, Italy
- Plantachem S.r.l.s., Via Amico Canobio 4/6, 28100 Novara, Italy
| | - Emanuela Mazzon
- IRCCS Centro Neurolesi “Bonino-Pulejo”, Via Provinciale Palermo, Contrada Casazza, 98124 Messina, Italy
- Correspondence:
| |
Collapse
|
5
|
Redox-dependent Igfbp2 signaling controls Brca1 DNA damage response to govern neural stem cell fate. Nat Commun 2023; 14:444. [PMID: 36707536 PMCID: PMC9883463 DOI: 10.1038/s41467-023-36174-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2019] [Accepted: 01/17/2023] [Indexed: 01/29/2023] Open
Abstract
Neural stem cell (NSC) maintenance and functions are regulated by reactive oxygen species (ROS). However, the mechanisms by which ROS control NSC behavior remain unclear. Here we report that ROS-dependent Igfbp2 signaling controls DNA repair pathways which balance NSC self-renewal and lineage commitment. Ncf1 or Igfbp2 deficiency constrains NSCs to a self-renewing state and prevents neurosphere formation. Ncf1-dependent oxidation of Igfbp2 promotes neurogenesis by NSCs in vitro and in vivo while repressing Brca1 DNA damage response genes and inducing DNA double-strand breaks (DDSBs). By contrast, Ncf1-/- and Igfbp2-/- NSCs favor the formation of oligodendrocytes in vitro and in vivo. Notably, transient repression of Brca1 DNA repair pathway genes induces DDSBs and is sufficient to rescue the ability of Ncf1-/- and Igfbp2-/- NSCs to lineage-commit to form neurospheres and neurons. NSC lineage commitment is dependent on the oxidizable cysteine-43 residue of Igfbp2. Our study highlights the role of DNA damage/repair in orchestrating NSC fate decisions downstream of redox-regulated Igfbp2.
Collapse
|
6
|
Takata S, Sakata-Haga H, Shimada H, Tsukada T, Sakai D, Shoji H, Tomosugi M, Nakamura Y, Ishigaki Y, Iizuka H, Hayashi Y, Hatta T. LIF-IGF Axis Contributes to the Proliferation of Neural Progenitor Cells in Developing Rat Cerebrum. Int J Mol Sci 2022; 23:13199. [PMID: 36361987 PMCID: PMC9659294 DOI: 10.3390/ijms232113199] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2022] [Revised: 10/18/2022] [Accepted: 10/27/2022] [Indexed: 09/10/2023] Open
Abstract
In rodent models, leukemia inhibitory factor (LIF) is involved in cerebral development via the placenta, and maternal immune activation is linked to psychiatric disorders in the child. However, whether LIF acts directly on neural progenitor cells (NPCs) remains unclear. This study performed DNA microarray analysis and quantitative RT-PCR on the fetal cerebrum after maternal intraperitoneal or fetal intracerebral ventricular injection of LIF at day 14.5 (E14.5) and determined that the expression of insulin-like growth factors (IGF)-1 and -2 was induced by LIF. Physiological IGF-1 and IGF-2 levels in fetal cerebrospinal fluid (CSF) increased from E15.5 to E17.5, following the physiological surge of LIF levels in CSF at E15.5. Immunostaining showed that IGF-1 was expressed in the cerebrum at E15.5 to E19.5 and IGF-2 at E15.5 to E17.5 and that IGF-1 receptor and insulin receptor were co-expressed in NPCs. Further, LIF treatment enhanced cultured NPC proliferation, which was reduced by picropodophyllin, an IGF-1 receptor inhibitor, even under LIF supplementation. Our findings suggest that IGF expression and release from the NPCs of the fetal cerebrum in fetal CSF is induced by LIF, thus supporting the involvement of the LIF-IGF axis in cerebral cortical development in an autocrine/paracrine manner.
Collapse
Affiliation(s)
- Sho Takata
- Department of Neurosurgery, Kanazawa Medical University, Kahoku 920-0293, Ishikawa, Japan
| | - Hiromi Sakata-Haga
- Department of Anatomy, Kanazawa Medical University, Kahoku 920-0293, Ishikawa, Japan
| | - Hiroki Shimada
- Department of Medical Science, Kanazawa Medical University, Kahoku 920-0293, Ishikawa, Japan
| | - Tsuyoshi Tsukada
- Department of Neurosurgery, Saiseikai Toyama Hospital, Toyama 931-8533, Toyama, Japan
| | - Daisuke Sakai
- Department of Biology, Kanazawa Medical University, Kahoku 920-0293, Ishikawa, Japan
| | - Hiroki Shoji
- Department of Biology, Kanazawa Medical University, Kahoku 920-0293, Ishikawa, Japan
| | - Mitsuhiro Tomosugi
- Department of Anatomy, Kanazawa Medical University, Kahoku 920-0293, Ishikawa, Japan
| | - Yuka Nakamura
- Department of Life Science, Kanazawa Medical University, Kahoku 920-0293, Ishikawa, Japan
| | - Yasuhito Ishigaki
- Department of Life Science, Kanazawa Medical University, Kahoku 920-0293, Ishikawa, Japan
| | - Hideaki Iizuka
- Department of Neurosurgery, Kanazawa Medical University, Kahoku 920-0293, Ishikawa, Japan
| | - Yasuhiko Hayashi
- Department of Neurosurgery, Kanazawa Medical University, Kahoku 920-0293, Ishikawa, Japan
| | - Toshihisa Hatta
- Department of Anatomy, Kanazawa Medical University, Kahoku 920-0293, Ishikawa, Japan
| |
Collapse
|
7
|
Guan Z, Liang Y, Wang X, Zhu Z, Yang A, Li S, Yu J, Niu B, Wang J. Unraveling the Mechanisms of Clinical Drugs-Induced Neural Tube Defects Based on Network Pharmacology and Molecular Docking Analysis. Neurochem Res 2022; 47:3709-3722. [PMID: 35960485 DOI: 10.1007/s11064-022-03717-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Revised: 07/23/2022] [Accepted: 07/31/2022] [Indexed: 11/30/2022]
Abstract
Chemotherapeutic agents such as methotrexate (MTX), raltitrexed (RTX), 5-fluorouracil (5-FU), hydroxyurea (HU), and retinoic acid (RA), and valproic acid (VPA), an antiepileptic drug, all can cause malformations in the developing central nervous system (CNS), such as neural tube defects (NTDs). However, the common pathogenic mechanisms remain unclear. This study aimed to explore the mechanisms of NTDs caused by MTX, RTX, 5-FU, HU, RA, and VPA (MRFHRV), based on network pharmacology and molecular biology experiments. The MRFHRV targets were integrated with disease targets, to find the potential molecules related to MRFHRV-induced NTDs. Protein-protein interaction analysis and molecular docking were performed to analyze these common targets. Utilizing the kyoto encyclopedia of genes and genomes (KEGG) signaling pathways, we analyzed and searched the possible causative pathogenic mechanisms by crucial targets and the signaling pathway. Results showed that MRFHRV induced NTDs through several key targets (including TP53, MAPK1, HSP90AA1, ESR1, GRB2, HDAC1, EGFR, PIK3CA, RXRA, and FYN) and multiple signaling pathways such as PI3K/Akt pathway, suggesting that abnormal proliferation and differentiation could be critical pathogenic contributors in NTDs induced by MRFHRV. These results were further validated by CCK8 assay in mouse embryonic stem cells and GFAP staining in embryonic brain tissue. This study indicated that chemotherapeutic and antiepileptic agents induced NTDs might through predicted targets TP53, MAPK1, GRB2, HDAC1, EGFR, PIK3CA, RXRA, and FYN and multiple signaling pathways. More caution was required for the clinical administration for women with childbearing potential and pregnant.
Collapse
Affiliation(s)
- Zhen Guan
- Beijing Municipal Key Laboratory of Child Development and Nutriomics, Translational Medicine Laboratory, Capital Institute of Pediatrics, Beijing, 100020, China
| | - Yingchao Liang
- Beijing Municipal Key Laboratory of Child Development and Nutriomics, Translational Medicine Laboratory, Capital Institute of Pediatrics, Beijing, 100020, China
| | - Xiuwei Wang
- Beijing Municipal Key Laboratory of Child Development and Nutriomics, Translational Medicine Laboratory, Capital Institute of Pediatrics, Beijing, 100020, China
| | - Zhiqiang Zhu
- Beijing Municipal Key Laboratory of Child Development and Nutriomics, Translational Medicine Laboratory, Capital Institute of Pediatrics, Beijing, 100020, China
| | - Aiyun Yang
- Beijing Municipal Key Laboratory of Child Development and Nutriomics, Translational Medicine Laboratory, Capital Institute of Pediatrics, Beijing, 100020, China
| | - Shen Li
- Beijing Municipal Key Laboratory of Child Development and Nutriomics, Translational Medicine Laboratory, Capital Institute of Pediatrics, Beijing, 100020, China
| | - Jialu Yu
- Beijing Municipal Key Laboratory of Child Development and Nutriomics, Translational Medicine Laboratory, Capital Institute of Pediatrics, Beijing, 100020, China
| | - Bo Niu
- Beijing Municipal Key Laboratory of Child Development and Nutriomics, Translational Medicine Laboratory, Capital Institute of Pediatrics, Beijing, 100020, China.
| | - Jianhua Wang
- Beijing Municipal Key Laboratory of Child Development and Nutriomics, Translational Medicine Laboratory, Capital Institute of Pediatrics, Beijing, 100020, China.
| |
Collapse
|
8
|
Fernández Acosta FJ, Luque-Molina I, Vecino R, Díaz-Guerra E, Defterali Ç, Pignatelli J, Vicario C. Morphological Diversity of Calretinin Interneurons Generated From Adult Mouse Olfactory Bulb Core Neural Stem Cells. Front Cell Dev Biol 2022; 10:932297. [PMID: 35846352 PMCID: PMC9277347 DOI: 10.3389/fcell.2022.932297] [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: 04/29/2022] [Accepted: 06/08/2022] [Indexed: 11/19/2022] Open
Abstract
Neural stem cells (NSCs) in the olfactory bulb (OB) core can generate mature interneurons in the adult mice brain. The vast majority of these adult generated cells express the calcium-binding protein Calretinin (CalR), and they migrate towards different OB layers. However, these cells have yet to be fully characterized and hence, to achieve this we injected retroviral particles expressing GFP into the OB core of adult animals and found that the CalR+ neurons generated from NSCs mainly migrate to the granule cell layer (GCL) and glomerular layer (GL) in similar proportions. In addition, since morphology and function are closely related, we used three-dimensional imaging techniques to analyze the morphology of these adult born cells, describing new subtypes of CalR+ interneurons based on their dendritic arborizations and projections, as well as their localization in the GCL or GL. We also show that the migration and morphology of these newly generated neurons can be altered by misexpressing the transcription factor Tbr1 in the OB core. Therefore, the morphology acquired by neurons located in a specific OB layer is the result of a combination of both extrinsic (e.g., layer allocation) and intrinsic mechanisms (e.g., transcription factors). Defining the cellular processes and molecular mechanisms that govern adult neurogenesis might help better understand brain circuit formation and plasticity, as well as eventually opening the way to develop strategies for brain repair.
Collapse
Affiliation(s)
| | - Inma Luque-Molina
- Instituto Cajal (IC), CSIC, Madrid, Spain
- Centro de Investigación Biomédica en Red Sobre Enfermedades Neurodegenerativas (CIBERNED), Instituto de Salud Carlos III (ISCIII), Madrid, Spain
| | - Rebeca Vecino
- Instituto Cajal (IC), CSIC, Madrid, Spain
- Centro de Investigación Biomédica en Red Sobre Enfermedades Neurodegenerativas (CIBERNED), Instituto de Salud Carlos III (ISCIII), Madrid, Spain
| | - Eva Díaz-Guerra
- Instituto Cajal (IC), CSIC, Madrid, Spain
- Centro de Investigación Biomédica en Red Sobre Enfermedades Neurodegenerativas (CIBERNED), Instituto de Salud Carlos III (ISCIII), Madrid, Spain
| | - Çagla Defterali
- Instituto Cajal (IC), CSIC, Madrid, Spain
- Centro de Investigación Biomédica en Red Sobre Enfermedades Neurodegenerativas (CIBERNED), Instituto de Salud Carlos III (ISCIII), Madrid, Spain
| | - Jaime Pignatelli
- Instituto Cajal (IC), CSIC, Madrid, Spain
- Centro de Investigación Biomédica en Red Sobre Enfermedades Neurodegenerativas (CIBERNED), Instituto de Salud Carlos III (ISCIII), Madrid, Spain
| | - Carlos Vicario
- Instituto Cajal (IC), CSIC, Madrid, Spain
- Centro de Investigación Biomédica en Red Sobre Enfermedades Neurodegenerativas (CIBERNED), Instituto de Salud Carlos III (ISCIII), Madrid, Spain
- *Correspondence: Carlos Vicario,
| |
Collapse
|
9
|
Jeon J, Mony TJ, Cho E, Kwon H, Cho WS, Choi JW, Kim BC, Ryu JH, Jeon SJ, Kwon KJ, Shin CY, Park SJ, Kim DH. Role of extracellular signal-regulated kinase in rubrofusarin-enhanced cognitive functions and neurite outgrowth. Biomed Pharmacother 2022; 147:112663. [DOI: 10.1016/j.biopha.2022.112663] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Revised: 01/11/2022] [Accepted: 01/24/2022] [Indexed: 12/13/2022] Open
|
10
|
Kim D, Jo YS, Jo HS, Bae S, Kwon YW, Oh YS, Yoon JH. Comparative Phosphoproteomics of Neuro-2a Cells under Insulin Resistance Reveals New Molecular Signatures of Alzheimer's Disease. Int J Mol Sci 2022; 23:ijms23021006. [PMID: 35055191 PMCID: PMC8781554 DOI: 10.3390/ijms23021006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2021] [Revised: 01/03/2022] [Accepted: 01/12/2022] [Indexed: 12/29/2022] Open
Abstract
Insulin in the brain is a well-known critical factor in neuro-development and regulation of adult neurogenesis in the hippocampus. The abnormality of brain insulin signaling is associated with the aging process and altered brain plasticity, and could promote neurodegeneration in the late stage of Alzheimer’s disease (AD). The precise molecular mechanism of the relationship between insulin resistance and AD remains unclear. The development of phosphoproteomics has advanced our knowledge of phosphorylation-mediated signaling networks and could elucidate the molecular mechanisms of certain pathological conditions. Here, we applied a reliable phosphoproteomic approach to Neuro2a (N2a) cells to identify their molecular features under two different insulin-resistant conditions with clinical relevance: inflammation and dyslipidemia. Despite significant difference in overall phosphoproteome profiles, we found molecular signatures and biological pathways in common between two insulin-resistant conditions. These include the integrin and adenosine monophosphate-activated protein kinase pathways, and we further verified these molecular targets by subsequent biochemical analysis. Among them, the phosphorylation levels of acetyl-CoA carboxylase and Src were reduced in the brain from rodent AD model 5xFAD mice. This study provides new molecular signatures for insulin resistance in N2a cells and possible links between the molecular features of insulin resistance and AD.
Collapse
Affiliation(s)
- Dayea Kim
- New Drug Development Center, Daegu-Gyeongbuk Medical Innovation Foundation (K-MEDI hub), Daegu 41061, Korea;
| | - Yeon Suk Jo
- Neurodegenerative Diseases Research Group, Korea Brain Research Institute, Daegu 41062, Korea; (Y.S.J.); (H.-S.J.); (S.B.); (Y.W.K.)
- Department of Brain-Cognitive Science, Daegu-Gyeongbuk Institute of Science and Technology (DGIST), Daegu 42988, Korea
| | - Han-Seul Jo
- Neurodegenerative Diseases Research Group, Korea Brain Research Institute, Daegu 41062, Korea; (Y.S.J.); (H.-S.J.); (S.B.); (Y.W.K.)
| | - Sungwon Bae
- Neurodegenerative Diseases Research Group, Korea Brain Research Institute, Daegu 41062, Korea; (Y.S.J.); (H.-S.J.); (S.B.); (Y.W.K.)
| | - Yang Woo Kwon
- Neurodegenerative Diseases Research Group, Korea Brain Research Institute, Daegu 41062, Korea; (Y.S.J.); (H.-S.J.); (S.B.); (Y.W.K.)
| | - Yong-Seok Oh
- Department of Brain-Cognitive Science, Daegu-Gyeongbuk Institute of Science and Technology (DGIST), Daegu 42988, Korea
- Correspondence: (Y.-S.O.); (J.H.Y.); Tel.: +82-53-785-6114 (Y.-S.O.); +82-53-980-8341 (J.H.Y.)
| | - Jong Hyuk Yoon
- Neurodegenerative Diseases Research Group, Korea Brain Research Institute, Daegu 41062, Korea; (Y.S.J.); (H.-S.J.); (S.B.); (Y.W.K.)
- Correspondence: (Y.-S.O.); (J.H.Y.); Tel.: +82-53-785-6114 (Y.-S.O.); +82-53-980-8341 (J.H.Y.)
| |
Collapse
|
11
|
Sheppard PAS, Puri TA, Galea LAM. Sex Differences and Estradiol Effects in MAPK and Akt Cell Signaling across Subregions of the Hippocampus. Neuroendocrinology 2022; 112:621-635. [PMID: 34407537 DOI: 10.1159/000519072] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Accepted: 08/16/2021] [Indexed: 11/19/2022]
Abstract
INTRODUCTION Rapid effects of estrogens within the hippocampus of rodents are dependent upon cell-signaling cascades, and activation of these cascades by estrogens varies by sex. Whether these pathways are rapidly activated within the dentate gyrus (DG) and CA1 by estrogens across sex and the anatomical longitudinal axis has been overlooked. METHODS Gonadally intact female and male rats were given either vehicle or physiological systemic low (1.1 µg/kg) or high (37.3 µg/kg) doses of 17β-estradiol 30 min prior to tissue collection. To control for the effects of circulating estrogens, an additional group of female rats was ovariectomized (OVX) and administered 17β-estradiol. Brains were extracted, and tissue punches of the CA1 and DG were taken along the longitudinal hippocampal axis (dorsal and ventral) and analyzed for key mitogen-activated protein kinase (MAPK) and protein kinase B (Akt) cascade phosphoproteins. RESULTS Intact females had higher Akt pathway phosphoproteins (pAkt, pGSK-3β, and pp70S6K) than males in the DG (dorsal and ventral) and lower pERK1/2 in the dorsal DG. Most effects of 17β-estradiol on cell signaling occurred in OVX animals. In OVX animals, 17β-estradiol increased cell signaling of MAPK and Akt phosphoproteins (pERK1/2, pJNK, pAkt, and pGSK-3β) in the CA1 and pERK1/2 and pJNK DG. DISCUSSION/CONCLUSIONS Systemic 17β-estradiol treatment rapidly alters phosphoprotein levels in the hippocampus, dependent on reproductive status, and intact females have greater expression of Akt phosphoproteins than that in intact males in the DG. These findings shed light on underlying mechanisms of sex differences in hippocampal function and response to interventions that affect MAPK or Akt signaling.
Collapse
Affiliation(s)
- Paul A S Sheppard
- Department of Psychology, University of British Columbia, Vancouver, British Columbia, Canada
- Djavad Mowafaghian Centre for Brain Health, University of British Columbia, Vancouver, British Columbia, Canada
| | - Tanvi A Puri
- Djavad Mowafaghian Centre for Brain Health, University of British Columbia, Vancouver, British Columbia, Canada
- Graduate Program in Neuroscience, University of British Columbia, Vancouver, British Columbia, Canada
| | - Liisa A M Galea
- Department of Psychology, University of British Columbia, Vancouver, British Columbia, Canada
- Djavad Mowafaghian Centre for Brain Health, University of British Columbia, Vancouver, British Columbia, Canada
- Graduate Program in Neuroscience, University of British Columbia, Vancouver, British Columbia, Canada
| |
Collapse
|
12
|
Ge Q, Hu X, Ma N, Sun M, Zhang L, Cai Z, Tan R, Lu H. Maternal high-salt diet during pregnancy impairs synaptic plasticity and memory in offspring. FASEB J 2021; 35:e21244. [PMID: 33715195 DOI: 10.1096/fj.202001890r] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2020] [Revised: 11/20/2020] [Accepted: 11/23/2020] [Indexed: 11/11/2022]
Abstract
Excess salt intake harms the brain health and cognitive functions, but whether a maternal high-salt diet (HSD) affects the brain development and neural plasticity of offspring remains unclear. Here, using a range of behavioral tests, we reported that the offspring of maternal HSD subjects exhibited short- and long-term memory deficits, especially in spatial memory in adulthood. Moreover, impairments in synaptic transmission and plasticity in the hippocampus were observed in adult offspring by using in vivo electrophysiology. Consistently, the number of astrocytes but not neurons in the hippocampus of the offspring from the HSD group were significantly decreased, and ERK and AKT signaling pathways involved in neurodevelopment were highly activated only during juvenile. In addition, the expression of synaptic proteins decreased both in juvenile and adulthood, and this effect might be involved in synaptic dysfunction. Collectively, these data demonstrated that the maternal HSD might cause adult offspring synaptic dysfunction and memory loss. It is possibly due to the reduction of astrocytes in juvenile.
Collapse
Affiliation(s)
- Qian Ge
- Department of Neurobiology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Xi'an, P.R. China
| | - Xiaoxuan Hu
- Department of Neurobiology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Xi'an, P.R. China.,Department of Human Anatomy and Histo-embryology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Xi'an, P.R. China
| | - Ning Ma
- Department of Neurobiology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Xi'an, P.R. China.,Department of Human Anatomy and Histo-embryology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Xi'an, P.R. China
| | - Meiqi Sun
- Department of Neurobiology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Xi'an, P.R. China
| | - Liyun Zhang
- Department of Neurobiology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Xi'an, P.R. China.,Department of Human Anatomy and Histo-embryology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Xi'an, P.R. China
| | - Zhenlu Cai
- Department of Neurobiology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Xi'an, P.R. China
| | - Ruolan Tan
- Department of Neurobiology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Xi'an, P.R. China.,Department of Human Anatomy and Histo-embryology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Xi'an, P.R. China
| | - Haixia Lu
- Department of Neurobiology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Xi'an, P.R. China
| |
Collapse
|
13
|
Littlejohn EL, DeSana AJ, Williams HC, Chapman RT, Joseph B, Juras JA, Saatman KE. IGF1-Stimulated Posttraumatic Hippocampal Remodeling Is Not Dependent on mTOR. Front Cell Dev Biol 2021; 9:663456. [PMID: 34095131 PMCID: PMC8174097 DOI: 10.3389/fcell.2021.663456] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Accepted: 04/26/2021] [Indexed: 01/29/2023] Open
Abstract
Adult hippocampal neurogenesis is stimulated acutely following traumatic brain injury (TBI). However, many hippocampal neurons born after injury develop abnormally and the number that survive long-term is debated. In experimental TBI, insulin-like growth factor-1 (IGF1) promotes hippocampal neuronal differentiation, improves immature neuron dendritic arbor morphology, increases long-term survival of neurons born after TBI, and improves cognitive function. One potential downstream mediator of the neurogenic effects of IGF1 is mammalian target of rapamycin (mTOR), which regulates proliferation as well as axonal and dendritic growth in the CNS. Excessive mTOR activation is posited to contribute to aberrant plasticity related to posttraumatic epilepsy, spurring preclinical studies of mTOR inhibitors as therapeutics for TBI. The degree to which pro-neurogenic effects of IGF1 depend upon upregulation of mTOR activity is currently unknown. Using immunostaining for phosphorylated ribosomal protein S6, a commonly used surrogate for mTOR activation, we show that controlled cortical impact TBI triggers mTOR activation in the dentate gyrus in a time-, region-, and injury severity-dependent manner. Posttraumatic mTOR activation in the granule cell layer (GCL) and dentate hilus was amplified in mice with conditional overexpression of IGF1. In contrast, delayed astrocytic activation of mTOR signaling within the dentate gyrus molecular layer, closely associated with proliferation, was not affected by IGF1 overexpression. To determine whether mTOR activation is necessary for IGF1-mediated stimulation of posttraumatic hippocampal neurogenesis, wildtype and IGF1 transgenic mice received the mTOR inhibitor rapamycin daily beginning at 3 days after TBI, following pulse labeling with bromodeoxyuridine. Compared to wildtype mice, IGF1 overexpressing mice exhibited increased posttraumatic neurogenesis, with a higher density of posttrauma-born GCL neurons at 10 days after injury. Inhibition of mTOR did not abrogate IGF1-stimulated enhancement of posttraumatic neurogenesis. Rather, rapamycin treatment in IGF1 transgenic mice, but not in WT mice, increased numbers of cells labeled with BrdU at 3 days after injury that survived to 10 days, and enhanced the proportion of posttrauma-born cells that differentiated into neurons. Because beneficial effects of IGF1 on hippocampal neurogenesis were maintained or even enhanced with delayed inhibition of mTOR, combination therapy approaches may hold promise for TBI.
Collapse
Affiliation(s)
| | | | | | | | | | | | - Kathryn E. Saatman
- Department of Physiology, Spinal Cord and Brain Injury Research Center, University of Kentucky, Lexington, KY, United States
| |
Collapse
|
14
|
Yuan Y, Li D, Yu F, Kang X, Xu H, Zhang P. Effects of Akt/mTOR/p70S6K Signaling Pathway Regulation on Neuron Remodeling Caused by Translocation Repair. Front Neurosci 2020; 14:565870. [PMID: 33132828 PMCID: PMC7550644 DOI: 10.3389/fnins.2020.565870] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Accepted: 08/25/2020] [Indexed: 12/23/2022] Open
Abstract
Peripheral nerve injury repair has been considered a difficult problem in the field of trauma for a long time. Conventional surgical methods are not applicable in some special types of nerve injury, prompting scholars to seek to develop more effective nerve translocation repair technologies. The purpose of this study was to explore the functional state of neurons in injured lower limbs after translocation repair, with a view to preliminarily clarify the molecular mechanisms underlying this process. Eighteen Sprague–Dawley rats were divided into the normal, tibial nerve in situ repair, and common peroneal nerve transposition repair tibial nerve groups. Nerve function assessment and immunohistochemical staining of neurofilament 200 (NF-200), protein kinase B (Akt), mammalian target of rapamycin (mTOR), and ribosomal protein S6 kinase (p70S6K) in the dorsal root ganglia were performed at 12 weeks after surgery. Tibial nerve function and neuroelectrophysiological analysis, osmic acid staining, muscle strength testing, and muscle fiber staining showed that the nerve translocation repair could restore the function of the recipient nerve to a certain extent; however, the repair was not as efficient as the in situ repair. Immunohistochemical staining showed that the translocation repair resulted in changes in the microstructure of neuronal cell bodies, and the expressions of Akt, mTOR, and p70S6K in the three dorsal root ganglia groups were significantly different (p < 0.05). This study demonstrates that the nerve translocation repair technology sets up a new reflex loop, with the corresponding neuroskeletal adjustments, in which, donor neurons dominate the recipient nerves. This indicates that nerve translocation repair technology can lead to neuronal remodeling and is important as a supplementary treatment for a peripheral nerve injury. Furthermore, the Akt/mTOR/p70S6K signaling pathway may be involved in the formation of the new neural reflex loop created as a result of the translocation repair.
Collapse
Affiliation(s)
- Yusong Yuan
- Department of Trauma and Orthopedics, Peking University People's Hospital, Peking University, Beijing, China.,Key Laboratory of Trauma and Neural Regeneration, Ministry of Education, Peking University, Beijing, China.,National Center for Trauma Medicine, Beijing, China
| | - Dongdong Li
- Department of Trauma and Orthopedics, Peking University People's Hospital, Peking University, Beijing, China.,Department of Orthopedics, PLA Strategic Support Force Characteristic Medical Center, Beijing, China
| | - Fei Yu
- Department of Trauma and Orthopedics, Peking University People's Hospital, Peking University, Beijing, China.,National Center for Trauma Medicine, Beijing, China
| | - Xuejing Kang
- Department of Trauma and Orthopedics, Peking University People's Hospital, Peking University, Beijing, China.,National Center for Trauma Medicine, Beijing, China
| | - Hailin Xu
- Department of Trauma and Orthopedics, Peking University People's Hospital, Peking University, Beijing, China.,National Center for Trauma Medicine, Beijing, China.,Diabetic Foot Treatment Center, Peking University People's Hospital, Peking University, Beijing, China
| | - Peixun Zhang
- Department of Trauma and Orthopedics, Peking University People's Hospital, Peking University, Beijing, China.,Key Laboratory of Trauma and Neural Regeneration, Ministry of Education, Peking University, Beijing, China.,National Center for Trauma Medicine, Beijing, China
| |
Collapse
|
15
|
Chen S, Wang T, Yao J, Brinton RD. Allopregnanolone Promotes Neuronal and Oligodendrocyte Differentiation In Vitro and In Vivo: Therapeutic Implication for Alzheimer's Disease. Neurotherapeutics 2020; 17:1813-1824. [PMID: 32632771 PMCID: PMC7851314 DOI: 10.1007/s13311-020-00874-x] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
Abstract
Previous studies demonstrated that the endogenous neurosteroid allopregnanolone (Allo) promotes regeneration of rodent and human neural progenitor/neural stem cells (NSCs) in vitro and in vivo, and restores neurogenesis and cognitive function in the male triple transgenic mouse model of Alzheimer's disease (3xTgAD). In this study, we investigated Allo regulation of neuronal differentiation of adult mouse neural stem cells from both sexes. Outcomes indicated that the age-dependent shift from neuronal to glial differentiation was accelerated and magnified in 3xTgAD adult NSCs compared to that in age-matched non-Tg NSCs. Coincident with the decline in neuronal differentiation, the number of immature neurons declined earlier in 3xTgAD mice, which was consistent with observations in the aged Alzheimer's human brain. Allo treatment restored the neuron/astrocyte ratio derived from adult 3xTgAD NSCs and increased both NSC proliferation and differentiation in the 3xTgAD brain. Allo treatment also significantly increased expression of Olig2, an oligodendrocyte precursor cell marker, as well as Olig2-positive cells in the corpus callosum of 3xTgAD mice. Increased neuronal and oligodendrocyte differentiation was paralleled by an increase in the expression levels of insulin-like growth factor-1 (IGF-1) and IGF-1 receptor (IGF-1R). Collectively, these findings are consistent with Allo acting as a pleiotropic therapeutic to promote regeneration of gray and white matter in the Alzheimer's brain.
Collapse
Affiliation(s)
- Shuhua Chen
- Center for Innovation in Brain Science, University of Arizona, 1230 N Cherry Avenue, Tucson, AZ, 85721, USA
| | - Tian Wang
- Center for Innovation in Brain Science, University of Arizona, 1230 N Cherry Avenue, Tucson, AZ, 85721, USA
| | - Jia Yao
- Department of Pharmacology and Pharmaceutical Science, School of Pharmacy, University of Southern California, Los Angeles, CA, USA
| | - Roberta Diaz Brinton
- Center for Innovation in Brain Science, University of Arizona, 1230 N Cherry Avenue, Tucson, AZ, 85721, USA.
- Department of Pharmacology, College of Medicine, University of Arizona, Tucson, AZ, USA.
- Department of Neurology, College of Medicine, University of Arizona, Tucson, AZ, USA.
| |
Collapse
|
16
|
Arumugam T, Ghazi T, Chuturgoon A. Fumonisin B 1 Epigenetically Regulates PTEN Expression and Modulates DNA Damage Checkpoint Regulation in HepG2 Liver Cells. Toxins (Basel) 2020; 12:toxins12100625. [PMID: 33007920 PMCID: PMC7601513 DOI: 10.3390/toxins12100625] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Revised: 08/19/2020] [Accepted: 08/27/2020] [Indexed: 12/13/2022] Open
Abstract
Fumonisin B1 (FB1), a Fusarium-produced mycotoxin, is found in various foods and feeds. It is a well-known liver carcinogen in experimental animals; however, its role in genotoxicity is controversial. The current study investigated FB1-triggered changes in the epigenetic regulation of PTEN and determined its effect on DNA damage checkpoint regulation in human liver hepatoma G2 (HepG2) cells. Following treatment with FB1 (IC50: 200 µM; 24 h), the expression of miR-30c, KDM5B, PTEN, H3K4me3, PI3K, AKT, p-ser473-AKT, CHK1, and p-ser280-CHK1 was measured using qPCR and/or Western blot. H3K4me3 enrichment at the PTEN promoter region was assayed via a ChIP assay and DNA damage was determined using an ELISA. FB1 induced oxidative DNA damage. Total KDM5B expression was reduced, which subsequently increased the total H3K4me3 and the enrichment of H3K4me3 at PTEN promoters. Increased H3K4me3 induced an increase in PTEN transcript levels. However, miR-30c inhibited PTEN translation. Thus, PI3K/AKT signaling was activated, inhibiting CHK1 activity via phosphorylation of its serine 280 residue preventing the repair of damaged DNA. In conclusion, FB1 epigenetically modulates the PTEN/PI3K/AKT signaling cascade, preventing DNA damage checkpoint regulation, and induces significant DNA damage.
Collapse
|
17
|
Lu T, Peng W, Liang Y, Li M, Li DS, Du KH, Zhu JH, Wu JH. PTEN-silencing combined with ChABC-overexpression in adipose-derived stem cells promotes functional recovery of spinal cord injury in rats. Biochem Biophys Res Commun 2020; 532:420-426. [PMID: 32888649 DOI: 10.1016/j.bbrc.2020.08.085] [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: 08/21/2020] [Accepted: 08/22/2020] [Indexed: 12/24/2022]
Abstract
The efficiency of cell therapy after spinal cord injury (SCI) depend on the survival of transplanted cells. However, sterile microenvironment and glial scar hyperplasia extremely reduce their numbers. Our previous study found overexpression of ChABC gene is positively correlated to migration ability. Expression of PTEN gene is closely associated with proliferation. However, whether manipulation of PTEN and ChABC on adipose-derived mesenchymal stem cells (ADSCs) promote motor recovery is unknown. This study aimed to promote hindlimb function recovery in SCI rats by enhancing proliferation and migration ability of ADSCs, transiently silencing expression of PTEN following overexpression of ChABC (double-gene modified ADSCs, DG-ADSCs). After PTEN silencing, we observed strong proliferation and accelerated G1-S transition in DG-ADSCs using CCK8 assay and flow cytometry. In addition, we demonstrated that migration numbers of DG-ADSCs were higher than control group using Transwell assay. The protein and mRNA levels of MAP2 and βⅢ-tubulin in DG-ADSCs were increased compared with ADSCs. These results were further confirmed in SCI rats. Increased survival cells and reduction of glial scars were quantitatively analyzed in DG-ADSCs groups, which is definitely correlated to function recovery. Recovery of motor function was observed in DG-ADSCs treatment rats using BBB score, which emphasized that improved viability of transplanted cells and reduction of glial scars were an effective strategy for enhancing recovery of neurological function after SCI.
Collapse
Affiliation(s)
- Tao Lu
- Department of Spine Surgery and Orthopaedic, Xiangya Hospital, Central South University, Changsha, China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
| | - Wang Peng
- Department of Spine Surgery and Orthopaedic, Xiangya Hospital, Central South University, Changsha, China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
| | - Yan Liang
- Department of Spine Surgery and Orthopaedic, Xiangya Hospital, Central South University, Changsha, China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
| | - Miao Li
- Department of Spine Surgery and Orthopaedic, Xiangya Hospital, Central South University, Changsha, China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
| | - Dong-Sheng Li
- Department of Spine Surgery and Orthopaedic, Xiangya Hospital, Central South University, Changsha, China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
| | - Kai-Hui Du
- Department of Spine Surgery and Orthopaedic, Xiangya Hospital, Central South University, Changsha, China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
| | - Jing-Hui Zhu
- Department of Spine Surgery and Orthopaedic, Xiangya Hospital, Central South University, Changsha, China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
| | - Jian-Huang Wu
- Department of Spine Surgery and Orthopaedic, Xiangya Hospital, Central South University, Changsha, China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China.
| |
Collapse
|
18
|
Kang SC, Jaini R, Hitomi M, Lee H, Sarn N, Thacker S, Eng C. Decreased nuclear Pten in neural stem cells contributes to deficits in neuronal maturation. Mol Autism 2020; 11:43. [PMID: 32487265 PMCID: PMC7268763 DOI: 10.1186/s13229-020-00337-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Accepted: 04/13/2020] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND PTEN, a syndromic autism spectrum disorder (ASD) risk gene, is mutated in approximately 10% of macrocephalic ASD cases. Despite the described genetic association between PTEN and ASD and ensuing studies, we continue to have a limited understanding of how PTEN disruption drives ASD pathogenesis and maintenance. METHODS We derived neural stem cells (NSCs) from the dentate gyrus (DG) of Ptenm3m4 mice, a model that recapitulates PTEN-ASD phenotypes. We subsequently characterized the expression of stemness factors, proliferation, and differentiation of neurons and glia in Ptenm3m4 NSCs using immunofluorescent and immunoblotting approaches. We also measured Creb phosphorylation by Western blot analysis and expression of Creb-regulated genes with qRT-PCR. RESULTS The m3m4 mutation decreases Pten localization to the nucleus and its global expression over time. Ptenm3m4 NSCs exhibit persistent stemness characteristics associated with increased proliferation and a resistance to neuronal maturation during differentiation. Given the increased proliferation of Ptenm3m4 NSCs, a significant increase in the population of immature neurons relative to mature neurons occurs, an approximately tenfold decrease in the ratio between the homozygous mutant and wildtype. There is an opposite pattern of differentiation in some Ptenm3m4 glia, specifically an increase in astrocytes. These aberrant differentiation patterns associate with changes in Creb activation in Ptenm3m4/m3m4 NSCs. We specifically observed loss of Creb phosphorylation at S133 in Ptenm3m4/m3m4 NSCs and a subsequent decrease in expression of Creb-regulated genes important to neuronal function (i.e., Bdnf). Interestingly, Bdnf treatment is able to partially rescue the stunted neuronal maturation phenotype in Ptenm3m4/m3m4 NSCs. CONCLUSIONS Constitutional disruption of Pten nuclear localization with subsequent global decrease in Pten expression generates abnormal patterns of differentiation, a stunting of neuronal maturation. The propensity of Pten disruption to restrain neurons to a more progenitor-like state may be an important feature contributing to PTEN-ASD pathogenesis.
Collapse
Affiliation(s)
- Shin Chung Kang
- Genomic Medicine Institute, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, 44195, USA
| | - Ritika Jaini
- Genomic Medicine Institute, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, 44195, USA.,Cleveland Clinic Lerner College of Medicine, Case Western Reserve University, 9500 Euclid Avenue, Cleveland, OH, 44195, USA.,Case Comprehensive Cancer Center, Case Western Reserve University School of Medicine, Cleveland, OH, 44106, USA
| | - Masahiro Hitomi
- Genomic Medicine Institute, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, 44195, USA.,Cleveland Clinic Lerner College of Medicine, Case Western Reserve University, 9500 Euclid Avenue, Cleveland, OH, 44195, USA
| | - Hyunpil Lee
- Genomic Medicine Institute, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, 44195, USA
| | - Nick Sarn
- Genomic Medicine Institute, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, 44195, USA.,Department of Genetics and Genome Sciences, Case Western Reserve University School of Medicine, Cleveland, OH, 44106, USA
| | - Stetson Thacker
- Genomic Medicine Institute, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, 44195, USA.,Cleveland Clinic Lerner College of Medicine, Case Western Reserve University, 9500 Euclid Avenue, Cleveland, OH, 44195, USA
| | - Charis Eng
- Genomic Medicine Institute, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, 44195, USA. .,Cleveland Clinic Lerner College of Medicine, Case Western Reserve University, 9500 Euclid Avenue, Cleveland, OH, 44195, USA. .,Case Comprehensive Cancer Center, Case Western Reserve University School of Medicine, Cleveland, OH, 44106, USA. .,Taussig Cancer Institute, Cleveland Clinic, Cleveland, OH, 44195, USA. .,Department of Genetics and Genome Sciences, Case Western Reserve University School of Medicine, Cleveland, OH, 44106, USA.
| |
Collapse
|
19
|
Wei Y, Han X, Zhao C. PDK1 regulates the survival of the developing cortical interneurons. Mol Brain 2020; 13:65. [PMID: 32366272 PMCID: PMC7197138 DOI: 10.1186/s13041-020-00604-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2019] [Accepted: 04/22/2020] [Indexed: 01/08/2023] Open
Abstract
Inhibitory interneurons are critical for maintaining the excitatory/inhibitory balance. During the development cortical interneurons originate from the ganglionic eminence and arrive at the dorsal cortex through two tangential migration routes. However, the mechanisms underlying the development of cortical interneurons remain unclear. 3-Phosphoinositide-dependent protein kinase-1 (PDK1) has been shown to be involved in a variety of biological processes, including cell proliferation and migration, and plays an important role in the neurogenesis of cortical excitatory neurons. However, the function of PDK1 in interneurons is still unclear. Here, we reported that the disruption of Pdk1 in the subpallium achieved by crossing the Dlx5/6-Cre-IRES-EGFP line with Pdk1fl/fl mice led to the severely increased apoptosis of immature interneurons, subsequently resulting in a remarkable reduction in cortical interneurons. However, the tangential migration, progenitor pools and cell proliferation were not affected by the disruption of Pdk1. We further found the activity of AKT-GSK3β signaling pathway was decreased after Pdk1 deletion, suggesting it might be involved in the regulation of the survival of cortical interneurons. These results provide new insights into the function of PDK1 in the development of the telencephalon.
Collapse
Affiliation(s)
- Yongjie Wei
- Key Laboratory of Developmental Genes and Human Diseases, MOE, School of Medicine, Southeast University, Nanjing, 210009, China
| | - Xiaoning Han
- Key Laboratory of Developmental Genes and Human Diseases, MOE, School of Medicine, Southeast University, Nanjing, 210009, China
| | - Chunjie Zhao
- Key Laboratory of Developmental Genes and Human Diseases, MOE, School of Medicine, Southeast University, Nanjing, 210009, China.
| |
Collapse
|
20
|
Wang H, Li X, Zhu Z, Wang H, Wei B, Bai X. Hydrogen sulfide promotes lipopolysaccharide-induced apoptosis of osteoblasts by inhibiting the AKT/NF-κB signaling pathway. Biochem Biophys Res Commun 2020; 524:832-838. [PMID: 32037087 DOI: 10.1016/j.bbrc.2020.02.005] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2020] [Accepted: 02/01/2020] [Indexed: 12/27/2022]
Abstract
Apoptosis of osteoblasts plays a crucial role in osteomyelitis. Hydrogen sulfide (H2S) levels are increased in the pathophysiological processes of osteomyelitis. However, the effect of H2S on the apoptosis of osteoblasts remains unclear. To investigate the specific role of H2S in osteoblast apoptosis, MC3T3-E1 and hFOB cells were treated with NaHS or Na2S, a donor of H2S, and lipopolysaccharide (LPS), during osteomyelitis. 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide assays, flow cytometry analysis, western blotting, immunofluorescence, polymerase chain reaction, and Alizarin red staining were performed to examine the effects of H2S on osteoblast cell apoptosis, cell osteogenic differentiation, and AKT kinase (AKT)/nuclear factor kappa B (NF-κB) signaling. Hydrogen sulfide increased cell apoptosis, and inhibited the proliferation and osteogenic differentiation of osteoblast cells impaired by LPS. H2S increased apoptosis through upregulation of the FAS ligand (FASL) signaling pathway. H2S-induced apoptosis was alleviated using a FAS/FASL signaling pathway inhibitor. Treatment with NaHS also increased cell apoptosis by downregulating AKT/NF-κB signaling. In addition, treatment with an AKT signaling pathway activator decreased apoptosis and reversed the inhibitory effects of H2S on osteogenic differentiation. Hydrogen sulfide promotes LPS-induced apoptosis of osteoblast cells by inhibiting AKT/NF-κB signaling.
Collapse
Affiliation(s)
- Hanshi Wang
- Department of Sports Medicine and Joint Surgery, The People's Hospital of China Medical University, Shenyang, 110016, People's Republic of China
| | - Xi Li
- Department of Sports Medicine and Joint Surgery, The People's Hospital of China Medical University, Shenyang, 110016, People's Republic of China
| | - Zhiyong Zhu
- Department of Sports Medicine and Joint Surgery, The People's Hospital of China Medical University, Shenyang, 110016, People's Republic of China
| | - Huisheng Wang
- Department of Sports Medicine and Joint Surgery, The People's Hospital of China Medical University, Shenyang, 110016, People's Republic of China
| | - Bo Wei
- Research Lab of Translational Medicine, Hengyang Medical School, University of South China, Hengyang, 421001, Hunan, People's Republic of China
| | - Xizhuang Bai
- Department of Sports Medicine and Joint Surgery, The People's Hospital of China Medical University, Shenyang, 110016, People's Republic of China.
| |
Collapse
|
21
|
Akt dependent adult hippocampal neurogenesis regulates the behavioral improvement of treadmill running to mice model of post-traumatic stress disorder. Behav Brain Res 2019; 379:112375. [PMID: 31759046 DOI: 10.1016/j.bbr.2019.112375] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2019] [Revised: 11/19/2019] [Accepted: 11/19/2019] [Indexed: 02/07/2023]
Abstract
Physical exercise is well-established paradigm for improving adult neurogenesis and brain functions. As considered as an alternative therapeutic strategy, treadmill running could reduce cognitive impairment and psychiatric abnormalities associating post-traumatic stress disorder (PTSD), which might associate with the promote effects to adult neurogenesis. In current study, we aimed to address how treadmill exercise benefit adult hippocampal neurogenesis in PTSD model and the underlying molecular mechanism related with Akt signaling. PTSD was induced by exposure to aggressor and treatments were conducted with different intensity of compulsory treadmill running. We observed treadmill running improved hippocampal neurogenesis including proliferation and neural differentiation of neural stem cells (NSCs). Moreover, behavioral tests showed treadmill could attenuate the cognitive deficit and depressive/anxiety like behaviors in correlating with PTSD model. Moreover, treadmill running recovered the Akt activity in hippocampus. Interrupting treadmill running administrated mice with Akt inhibitor GSK690693 resulted in the blocked the effects of treadmill running to hippocampal neurogenesis and behavioral improvement in PTSD mice model. In conclusion, treadmill running could mediate behavioral functions and improve hippocampal neurogenesis in PTSD model by regulating Akt signaling.
Collapse
|
22
|
Pisano S, Pozzi M, Catone G, Scrinzi G, Clementi E, Coppola G, Milone A, Bravaccio C, Santosh P, Masi G. Putative Mechanisms of Action and Clinical Use of Lithium in Children and Adolescents: A Critical Review. Curr Neuropharmacol 2019; 17:318-341. [PMID: 29256353 PMCID: PMC6482478 DOI: 10.2174/1570159x16666171219142120] [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: 09/06/2017] [Revised: 10/09/2017] [Accepted: 11/28/2017] [Indexed: 01/17/2023] Open
Abstract
Background: Lithium is a first-line treatment for bipolar disorder in adults, but its mechanism of action is still far from clear. Furthermore, evidences of its use in pediatric populations are sparse, not only for bipolar disorders, but also for other possible indications. Objectives: To provide a synthesis of published data on the possible mechanisms of action of lithium, as well as on its use in pediatric samples, including pharmacokinetics, efficacy, and safety data. Methods: Clinical trials in pediatric samples with at least one standardized measure of efficacy/effectiveness were included in this review. We considered: i) randomized and open label trials, ii) combination studies iii) augmentation studies iv) case series including at least 5 patients. Results: Different and non-alternative mechanisms of action can explain the clinical efficacy of lithium. Clinical studies in pediatric samples suggest that lithium is effective in managing manic symptoms/episodes of bipolar disorder, both in the acute phase and as maintenance strategy. Efficacy on depressive symptoms/phases of bipolar disorder is much less clear, while studies do not support its use in unipolar depression and severe mood dysregulation. Conversely, it may be effective on aggression in the context of conduct disorder. Other possible indications, with limited published evidence, are the acute attacks in Kleine-Levin syndrome, behavioral symptoms of X-fragile syndrome, and the management of clozapine- or chemotherapy- induced neutropenia. Generally, lithium resulted relatively safe. Conclusions: Lithium seems an effective and well-tolerated medication in pediatric bipolar disorder and aggression, while further evidences are needed for other clinical indications.
Collapse
Affiliation(s)
- Simone Pisano
- Clinic of Child and Adolescent Neuropsychiatry, Department of Medicine and Surgery, University of Salerno, Salerno, Italy
| | - Marco Pozzi
- Scientific Institute IRCCS Eugenio Medea, 23842 Bosisio Parini, Lecco, Italy
| | - Gennaro Catone
- Dept. of Mental and Physical Health and Preventive Medicine, Child and Adolescent Psychiatry Division, Campania University- Luigi Vanvitelli, Italy
| | - Giulia Scrinzi
- Department of Surgical Sciences, Dentistry, Gynecology and Pediatrics, Child Neuropsychiatry Unit, University of Verona, Verona 37126, Italy
| | - Emilio Clementi
- Scientific Institute IRCCS Eugenio Medea, 23842 Bosisio Parini, Lecco, Italy.,Unit of Clinical Pharmacology, CNR Institute of Neuroscience, Department of Biomedical and Clinical Sciences L. Sacco, "Luigi Sacco" University Hospital, University of Milan, 20157 Milan, Italy
| | - Giangennaro Coppola
- Clinic of Child and Adolescent Neuropsychiatry, Department of Medicine and Surgery, University of Salerno, Salerno, Italy
| | - Annarita Milone
- IRCCS Stella Maris, Scientific Institute of Child Neurology and Psychiatry, Calambrone, Pisa, Italy
| | - Carmela Bravaccio
- Department of Translational Medical Sciences, University Federico II of Naples, Italy
| | - Paramala Santosh
- Department of Child and Adolescent Psychiatry, Institute of Psychiatry, Psychology and Neuroscience, King's College London, United Kingdom.,Centre for Interventional Paediatric Psychopharmacology and Rare Diseases (CIPPRD), National and Specialist Child and Adolescent Mental Health Services, Maudsley Hospital, London, United States.,HealthTracker Ltd, Gillingham, United States
| | - Gabriele Masi
- IRCCS Stella Maris, Scientific Institute of Child Neurology and Psychiatry, Calambrone, Pisa, Italy
| |
Collapse
|
23
|
Qi Z, Guo W, Zheng S, Fu C, Ma Y, Pan S, Liu Q, Yang X. Enhancement of neural stem cell survival, proliferation and differentiation by IGF-1 delivery in graphene oxide-incorporated PLGA electrospun nanofibrous mats. RSC Adv 2019; 9:8315-8325. [PMID: 35518668 PMCID: PMC9061867 DOI: 10.1039/c8ra10103e] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2018] [Accepted: 03/04/2019] [Indexed: 11/21/2022] Open
Abstract
The mammalian central nervous system has a limited ability for self-repair under injury conditions.
Collapse
Affiliation(s)
- Zhiping Qi
- Department of Orthopedic Surgery
- The Second Hospital of Jilin University
- Changchun TX 130041
- PR China
| | - Wenlai Guo
- Department of Orthopedic Surgery
- The Second Hospital of Jilin University
- Changchun TX 130041
- PR China
| | - Shuang Zheng
- Department of Orthopedic Surgery
- The Second Hospital of Jilin University
- Changchun TX 130041
- PR China
| | - Chuan Fu
- Department of Orthopedic Surgery
- The Second Hospital of Jilin University
- Changchun TX 130041
- PR China
| | - Yue Ma
- Department of Gynecological Oncology
- The First Hospital of Jilin University
- Changchun TX 130000
- PR China
| | - Su Pan
- Department of Orthopedic Surgery
- The Second Hospital of Jilin University
- Changchun TX 130041
- PR China
| | - Qinyi Liu
- Department of Orthopedic Surgery
- The Second Hospital of Jilin University
- Changchun TX 130041
- PR China
| | - Xiaoyu Yang
- Department of Orthopedic Surgery
- The Second Hospital of Jilin University
- Changchun TX 130041
- PR China
| |
Collapse
|
24
|
Lee HJ, Ahn SM, Pak ME, Jung DH, Lee SY, Shin HK, Choi BT. Positive effects of α-asarone on transplanted neural progenitor cells in a murine model of ischemic stroke. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2018; 51:151-161. [PMID: 30466612 DOI: 10.1016/j.phymed.2018.09.230] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/11/2018] [Revised: 09/20/2018] [Accepted: 09/30/2018] [Indexed: 06/09/2023]
Abstract
BACKGROUND Some traditional Oriental herbal medicines, such as Acorus tatarinowii and Acorus gramineus, produce beneficial effects for cognition enhancement. An active compound in rhizomes and the bark of these plants is α-asarone. PURPOSE This study investigated the effects of α-asarone on the proliferation and differentiation of neural progenitor cells (NPCs) in a primary culture and a murine model of ischemic stroke. METHODS NPCs were isolated from mouse fetal cerebral cortices on embryonic day 15, and all experiments were performed using passage 3 NPCs. We utilized a cell counting kit-8 assay, flow cytometry, western blot, and immunohistochemical analysis to assess proliferation and differentiation of NPCs and employed α-asarone in NPC transplanted ischemic stroke mice to evaluate stroke-related functional recovery using behavioral and immunohistochemical analysis. RESULT Treatment with 1 µM, 3 µM, or 10 μM α-asarone induced significant NPC proliferation compared to vehicle treatment. Induced NPCs expressed the neuronal marker neuronal nuclei (NeuN) or the astrocyte marker S100 calcium-binding protein B (S100β). Both immunohistochemistry and flow cytometry revealed that treatment with α-asarone increased the number of NeuN-immunoreactive cells and decreased the number of S100β-immunoreactive cells. Treatment with α-asarone also increased the expression of β-catenin, cyclin D1, and phosphorylated extracellular signal-regulated kinase (ERK) compared to vehicle treatment. In a murine model of ischemic stroke, treatment with α-asarone and transplanted NPCs alleviated stroke-related functional impairments. The corner and rotarod test results revealed that treatment with α-asarone in the NPC transplanted group had greater-than-additive effects on sensorimotor function and motor balance. Moreover, α-asarone treatment promoted the differentiation of transplanted NPCs into NeuN-, glial fibrillary acidic protein (GFAP)-, platelet-derived growth factor-α (PDGFR-α)-, and 2', 3'-cyclic nucleotide 3'-phosphodiesterase (CNPase)-immunoreactive cells. CONCLUSION α-asarone may promote NPC proliferation and differentiation into neuron-lineage cells by activating β-catenin, cyclin D1, and ERK. Moreover, α-asarone treatment facilitated neurofunctional recovery after NPC transplantation in a murine model of ischemic stroke. Therefore, α-asarone is a potential adjunct treatment to NPC therapy for functional restoration after brain injuries such as ischemic stroke.
Collapse
Affiliation(s)
- Hong Ju Lee
- Department of Korean Medical Science, School of Korean Medicine, Pusan National University, Yangsan 50612, Republic of Korea; Graduate Training Program of Korean Medicine for Healthy-Aging, School of Korean Medicine, Pusan National University, Yangsan 50612, Republic of Korea.
| | - Sung Min Ahn
- Korean Medical Science Research Center for Healthy-Aging, Pusan National University, Yangsan 50612, Republic of Korea.
| | - Malk Eun Pak
- Department of Korean Medical Science, School of Korean Medicine, Pusan National University, Yangsan 50612, Republic of Korea; Graduate Training Program of Korean Medicine for Healthy-Aging, School of Korean Medicine, Pusan National University, Yangsan 50612, Republic of Korea.
| | - Da Hee Jung
- Department of Korean Medical Science, School of Korean Medicine, Pusan National University, Yangsan 50612, Republic of Korea; Graduate Training Program of Korean Medicine for Healthy-Aging, School of Korean Medicine, Pusan National University, Yangsan 50612, Republic of Korea.
| | - Seo-Yeon Lee
- Department of Korean Medical Science, School of Korean Medicine, Pusan National University, Yangsan 50612, Republic of Korea; Graduate Training Program of Korean Medicine for Healthy-Aging, School of Korean Medicine, Pusan National University, Yangsan 50612, Republic of Korea; Korean Medical Science Research Center for Healthy-Aging, Pusan National University, Yangsan 50612, Republic of Korea.
| | - Hwa Kyoung Shin
- Department of Korean Medical Science, School of Korean Medicine, Pusan National University, Yangsan 50612, Republic of Korea; Graduate Training Program of Korean Medicine for Healthy-Aging, School of Korean Medicine, Pusan National University, Yangsan 50612, Republic of Korea; Korean Medical Science Research Center for Healthy-Aging, Pusan National University, Yangsan 50612, Republic of Korea.
| | - Byung Tae Choi
- Department of Korean Medical Science, School of Korean Medicine, Pusan National University, Yangsan 50612, Republic of Korea; Graduate Training Program of Korean Medicine for Healthy-Aging, School of Korean Medicine, Pusan National University, Yangsan 50612, Republic of Korea; Korean Medical Science Research Center for Healthy-Aging, Pusan National University, Yangsan 50612, Republic of Korea.
| |
Collapse
|
25
|
Wang X, Xuan W, Zhu ZY, Li Y, Zhu H, Zhu L, Fu DY, Yang LQ, Li PY, Yu WF. The evolving role of neuro-immune interaction in brain repair after cerebral ischemic stroke. CNS Neurosci Ther 2018; 24:1100-1114. [PMID: 30350341 DOI: 10.1111/cns.13077] [Citation(s) in RCA: 67] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2018] [Revised: 09/23/2018] [Accepted: 09/25/2018] [Indexed: 12/13/2022] Open
Abstract
Stroke is the world's leading cause of disability with limited brain repair treatments which effectively improve long-term neurological deficits. The neuroinflammatory responses persist into the late repair phase of stroke and participate in all brain repair elements, including neurogenesis, angiogenesis, synaptogenesis, remyelination and axonal sprouting, shedding new light on post-stroke brain recovery. Resident brain glial cells, such as astrocytes not only contribute to neuroinflammation after stroke, but also secrete a wide range of trophic factors that can promote post-stroke brain repair. Alternatively, activated microglia, monocytes, and neutrophils in the innate immune system, traditionally considered as major damaging factors after stroke, have been suggested to be extensively involved in brain repair after stroke. The adaptive immune system may also have its bright side during the late regenerative phase, affecting the immune suppressive regulatory T cells and B cells. This review summarizes the recent findings in the evolving role of neuroinflammation in multiple post-stroke brain repair mechanisms and poses unanswered questions that may generate new directions for future research and give rise to novel therapeutic targets to improve stroke recovery.
Collapse
Affiliation(s)
- Xin Wang
- Department of Anesthesiology, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China
| | - Wei Xuan
- Department of Anesthesiology, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China
| | - Zi-Yu Zhu
- Department of Anesthesiology, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China
| | - Yan Li
- Department of Anesthesiology, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China
| | - Hao Zhu
- Department of Anesthesiology, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China
| | - Ling Zhu
- Department of Anesthesiology, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China
| | - Dan-Yun Fu
- Department of Anesthesiology, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China
| | - Li-Qun Yang
- Department of Anesthesiology, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China
| | - Pei-Ying Li
- Department of Anesthesiology, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China
| | - Wei-Feng Yu
- Department of Anesthesiology, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China
| |
Collapse
|
26
|
Chen S, Kumar N, Mao Z, Sitruk-Ware R, Brinton RD. Therapeutic progestin segesterone acetate promotes neurogenesis: implications for sustaining regeneration in female brain. Menopause 2018; 25:1138-1151. [PMID: 29846284 PMCID: PMC7731586 DOI: 10.1097/gme.0000000000001135] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVE Neurogenesis is the principal regenerative mechanism to sustain the plasticity potential in adult brains. Decreased neurogenesis parallels the cognition decline with aging, and has been suggested as a common hallmark in the progression of many neurodegeneration diseases. We previously reported that acute exposure to segesterone acetate (ST-1435; Nestorone), alone or in combination with 17β-estradiol (E2), increased human neural stem cells proliferation and survival both in vitro and in vivo. The present study expanded our previous findings to investigate the more clinical related chronic exposure in combination with E2 on the regenerative capacity of adult brain. METHODS To mimic the chronic contraception exposure in women, 3-month old female mice (n = 110) were treated with ST-1435, with or without co-administration of E2, for 4 weeks. Neural cell proliferation and survival, and oligodendrocyte generation were assessed. The involvement of insulin-like growth factor 1 signaling was studied. RESULTS Our results demonstrated that chronic ST-1435 and E2 alone or in combination increased neurogenesis by a comparable magnitude, with minimum to no antagonistic or additive effects between ST-1435 and E2. In addition, chronic exposure of ST-1435 or ST-1435 + E2 stimulated oligodendrocyte generation, indicating potential elevated myelination. Insulin-like growth factor-1 (IGF-1) and IGF-1 receptor (IGF-1R) were also up-regulated after chronic ST-1435 and E2 exposure, suggesting the involvement of IGF-1 signaling as the potential underlined regulatory pathway transducing ST-1435 effect. CONCLUSION These findings provide preclinical evidence and mechanistic insights for the development of ST-1435 as a neuroregenerative therapy to promote intrinsic regenerative capacity in female brains against aging and neurodegenerative disorders.
Collapse
Affiliation(s)
- Shuhua Chen
- Center for Innovation in Brain Science, University of Arizona, Tucson, AZ, USA
| | - Narendar Kumar
- Center for Biomedical Research, Population Council,, New York, NY, USA
| | - Zisu Mao
- Center for Innovation in Brain Science, University of Arizona, Tucson, AZ, USA
| | | | - Roberta Diaz Brinton
- Center for Innovation in Brain Science, University of Arizona, Tucson, AZ, USA
- Department of Pharmacology, University of Arizona, Tucson, AZ, USA
- Department of Neurology, University of Arizona, Tucson, AZ, USA
| |
Collapse
|
27
|
Zucco AJ, Pozzo VD, Afinogenova A, Hart RP, Devinsky O, D'Arcangelo G. Neural progenitors derived from Tuberous Sclerosis Complex patients exhibit attenuated PI3K/AKT signaling and delayed neuronal differentiation. Mol Cell Neurosci 2018; 92:149-163. [PMID: 30144504 DOI: 10.1016/j.mcn.2018.08.004] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2018] [Revised: 07/23/2018] [Accepted: 08/20/2018] [Indexed: 12/20/2022] Open
Abstract
Tuberous Sclerosis Complex (TSC) is a disease caused by autosomal dominant mutations in the TSC1 or TSC2 genes, and is characterized by tumor susceptibility, brain lesions, seizures and behavioral impairments. The TSC1 and TSC2 genes encode proteins forming a complex (TSC), which is a major regulator and suppressor of mammalian target of rapamycin complex 1 (mTORC1), a signaling complex that promotes cell growth and proliferation. TSC1/2 loss of heterozygosity (LOH) and the subsequent complete loss of TSC regulatory activity in null cells causes mTORC1 dysregulation and TSC-associated brain lesions or other tissue tumors. However, it is not clear whether TSC1/2 heterozygous brain cells are abnormal and contribute to TSC neuropathology. To investigate this issue, we generated induced pluripotent stem cells (iPSCs) from TSC patients and unaffected controls, and utilized these to obtain neural progenitor cells (NPCs) and differentiated neurons in vitro. These patient-derived TSC2 heterozygous NPCs were delayed in their ability to differentiate into neurons. Patient-derived progenitor cells also exhibited a modest activation of mTORC1 signaling downstream of TSC, and a marked attenuation of upstream PI3K/AKT signaling. We further show that pharmacologic PI3K or AKT inhibition, but not mTORC1 inhibition, causes a neuronal differentiation delay, mimicking the patient phenotype. Together these data suggest that heterozygous TSC2 mutations disrupt neuronal development, potentially contributing to the disease neuropathology, and that this defect may result from dysregulated PI3K/AKT signaling in neural progenitor cells.
Collapse
Affiliation(s)
- Avery J Zucco
- Graduate Program in Neuroscience, Rutgers Robert Wood Johnson Medical School, Piscataway, NJ, United States of America; Department of Cell Biology and Neuroscience, Rutgers, the State University of New Jersey, Piscataway, NJ, United States of America
| | - Valentina Dal Pozzo
- Graduate Program in Neuroscience, Rutgers Robert Wood Johnson Medical School, Piscataway, NJ, United States of America; Department of Cell Biology and Neuroscience, Rutgers, the State University of New Jersey, Piscataway, NJ, United States of America
| | - Alina Afinogenova
- Department of Cell Biology and Neuroscience, Rutgers, the State University of New Jersey, Piscataway, NJ, United States of America
| | - Ronald P Hart
- Department of Cell Biology and Neuroscience, Rutgers, the State University of New Jersey, Piscataway, NJ, United States of America; Human Genetics Institute of New Jersey, Piscataway, NJ, United States of America
| | - Orrin Devinsky
- NYU Comprehensive Epilepsy Center, NYU Langone School of Medicine, New York, NY, United States of America
| | - Gabriella D'Arcangelo
- Department of Cell Biology and Neuroscience, Rutgers, the State University of New Jersey, Piscataway, NJ, United States of America; Human Genetics Institute of New Jersey, Piscataway, NJ, United States of America.
| |
Collapse
|
28
|
Zhao J, Cao J, Zhou L, Du Y, Zhang X, Yang B, Gao Y, Wang Y, Ma N, Yang W. MiR-1260b inhibitor enhances the chemosensitivity of colorectal cancer cells to fluorouracil by targeting PDCD4/IGF1. Oncol Lett 2018; 16:5131-5139. [PMID: 30250581 PMCID: PMC6144919 DOI: 10.3892/ol.2018.9307] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2017] [Accepted: 06/04/2018] [Indexed: 12/14/2022] Open
Abstract
Colorectal cancer (CRC) is the most common malignant tumor type and has become resistant to 5-fluorouracil (5-FU) in recent decades, which is one of the most popular therapies. Recently, microRNA (miRNA or miR) has been investigated as a potential therapeutic strategy for CRC. However, there has been little investigation of the underlying mechanism of the association between expression of miRNA and chemosensitivity. The present study aimed to investigate the effect of miR-1260b inhibitor on CRC cells, and their chemosensitivity to 5-FU, by treating them with the miR-1260b inhibitor. miR-1260b inhibitor was demonstrated to significantly promote the proliferation and invasion of the CRC cell line, HCT116, and to increase the apoptotic rate. Furthermore, it was validated that programmed cell death 4 (PDCD4) was a direct target of miR-1260b inhibitor in CRC with bioinformatics tools and a luciferase assay. Western blot analysis revealed that miR-1260b inhibitor could significantly decrease PDCD4 expression, and downregulate the expression of phosphorylated-Akt (p-Akt) and phosphorylated-extracellular-signal-regulated kinase (p-ERK). In conclusion, it was confirmed that the anti-tumor effect of the miR-1260b inhibitor was conducted by blocking the phosphorylated 3-kinase/Akt pathway as dysregulated protein expression induced by miR-1260b inhibitor was rescued by insulin-like growth factor. Notably, miR-1260b inhibitor could significantly enhanced the chemoresponse of HCT116 cells to 5-FU via reduced proliferation, increased apoptosis, and downregulation of PDCD4, p-Akt and p-ERK protein expression. In summary, the present study may provide a novel direction for future clinical therapy to enhance the chemosensitivity of tumor cells.
Collapse
Affiliation(s)
- Jun Zhao
- Department of Oncology, The Changzhi People's Hospital, Changzhi, Shanxi 046000, P.R. China
| | - Jingjie Cao
- Department of Radiotherapy, The 264th Hospital of Chinese People's Liberation Army, Taiyuan, Shanxi 030001, P.R. China
| | - Lurong Zhou
- Medical Department, The Changzhi People's Hospital, Changzhi, Shanxi 046000, P.R. China
| | - Yunyi Du
- Department of Oncology, The Changzhi People's Hospital, Changzhi, Shanxi 046000, P.R. China
| | - Xiaoling Zhang
- Department of Oncology, The Changzhi People's Hospital, Changzhi, Shanxi 046000, P.R. China
| | - Bo Yang
- Department of Oncology, The Changzhi People's Hospital, Changzhi, Shanxi 046000, P.R. China
| | - Yangjun Gao
- Department of Oncology, The Changzhi People's Hospital, Changzhi, Shanxi 046000, P.R. China
| | - Yu Wang
- Department of Oncology, The Changzhi People's Hospital, Changzhi, Shanxi 046000, P.R. China
| | - Ning Ma
- Department of Oncology, The Changzhi People's Hospital, Changzhi, Shanxi 046000, P.R. China
| | - Wei Yang
- Department of Oncology, The Changzhi People's Hospital, Changzhi, Shanxi 046000, P.R. China
| |
Collapse
|
29
|
Shi Z, Zhou H, Lu L, Pan B, Wei Z, Liu J, Li J, Yuan S, Kang Y, Liu L, Yao X, Kong X, Feng S. MicroRNA‐29a regulates neural stem cell neuronal differentiation by targeting PTEN. J Cell Biochem 2018; 119:5813-5820. [DOI: 10.1002/jcb.26768] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2017] [Accepted: 02/02/2018] [Indexed: 01/09/2023]
Affiliation(s)
- Zhongju Shi
- Department of OrthopaedicsTianjin Medical University General HospitalTianjinP. R. China
| | - Hengxing Zhou
- Department of OrthopaedicsTianjin Medical University General HospitalTianjinP. R. China
| | - Lu Lu
- Department of OrthopaedicsTianjin Medical University General HospitalTianjinP. R. China
| | - Bin Pan
- Department of OrthopaedicsThe Affiliated Hospital of XuzhouMedical UniversityXuzhouJiangsuP. R. China
| | - Zhijian Wei
- Department of OrthopaedicsTianjin Medical University General HospitalTianjinP. R. China
| | - Jun Liu
- Department of OrthopaedicsTianjin Medical University General HospitalTianjinP. R. China
| | - Jiahe Li
- Department of OrthopaedicsTianjin Medical University General HospitalTianjinP. R. China
| | - Shiyang Yuan
- Department of OrthopaedicsTianjin Medical University General HospitalTianjinP. R. China
| | - Yi Kang
- Department of OrthopaedicsTianjin Medical University General HospitalTianjinP. R. China
| | - Lu Liu
- Department of OrthopaedicsTianjin Medical University General HospitalTianjinP. R. China
| | - Xue Yao
- Department of OrthopaedicsTianjin Medical University General HospitalTianjinP. R. China
| | - Xiaohong Kong
- 221 LaboratorySchool of MedicineNankai UniversityTianjinP. R. China
| | - Shiqing Feng
- Department of OrthopaedicsTianjin Medical University General HospitalTianjinP. R. China
| |
Collapse
|
30
|
Habroun SS, Schaffner AA, Taylor EN, Strand CR. Food consumption increases cell proliferation in the python brain. ACTA ACUST UNITED AC 2018; 221:jeb.173377. [PMID: 29496780 DOI: 10.1242/jeb.173377] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2017] [Accepted: 02/20/2018] [Indexed: 11/20/2022]
Abstract
Pythons are model organisms for investigating physiological responses to food intake. While systemic growth in response to food consumption is well documented, what occurs in the brain is currently unexplored. In this study, male ball pythons (Python regius) were used to test the hypothesis that food consumption stimulates cell proliferation in the brain. We used 5-bromo-12'-deoxyuridine (BrdU) as a cell-birth marker to quantify and compare cell proliferation in the brain of fasted snakes and those at 2 and 6 days after a meal. Throughout the telencephalon, cell proliferation was significantly increased in the 6 day group, with no difference between the 2 day group and controls. Systemic postprandial plasticity occurs quickly after a meal is ingested, during the period of active digestion; however, the brain displays a surge of cell proliferation after most digestion and absorption is complete.
Collapse
Affiliation(s)
- Stacy S Habroun
- Biological Sciences Department, California Polytechnic State University, San Luis Obispo, CA 93407-0401, USA.,Neurosciences Department, University of California-San Diego, Biomedical Research Facility, La Jolla, CA 92093, USA
| | - Andrew A Schaffner
- Statistics Department, California Polytechnic State University, San Luis Obispo, CA 93407-0405 , USA
| | - Emily N Taylor
- Biological Sciences Department, California Polytechnic State University, San Luis Obispo, CA 93407-0401, USA
| | - Christine R Strand
- Biological Sciences Department, California Polytechnic State University, San Luis Obispo, CA 93407-0401, USA
| |
Collapse
|
31
|
Zhang X, He X, Li Q, Kong X, Ou Z, Zhang L, Gong Z, Long D, Li J, Zhang M, Ji W, Zhang W, Xu L, Xuan A. PI3K/AKT/mTOR Signaling Mediates Valproic Acid-Induced Neuronal Differentiation of Neural Stem Cells through Epigenetic Modifications. Stem Cell Reports 2018; 8:1256-1269. [PMID: 28494938 PMCID: PMC5425725 DOI: 10.1016/j.stemcr.2017.04.006] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2016] [Revised: 04/04/2017] [Accepted: 04/06/2017] [Indexed: 12/18/2022] Open
Abstract
Although valproic acid (VPA), has been shown to induce neuronal differentiation of neural stem cells (NSCs), the underlying mechanisms remain poorly understood. Here we investigated if and how mammalian target of rapamycin (mTOR) signaling is involved in the neuronal differentiation of VPA-induced NSCs. Our data demonstrated that mTOR activation not only promoted but also was necessary for the neuronal differentiation of NSCs induced by VPA. We further found that inhibition of mTOR signaling blocked demethylation of neuron-specific gene neurogenin 1 (Ngn1) regulatory element in induced cells. These are correlated with the significant alterations of passive DNA demethylation and the active DNA demethylation pathway in the Ngn1 promoter, but not the suppression of lysine-specific histone methylation and acetylation in the promoter region of Ngn1. These findings highlight a potentially important role for mTOR signaling, by working together with DNA demethylation, to influence the fate of NSCs via regulating the expression of Ngn1 in VPA-induced neuronal differentiation of NSCs.
Collapse
Affiliation(s)
- Xi Zhang
- Key Laboratory of Neuroscience, Key Laboratory of Protein Modification and Degradation, Department of Anatomy, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou 511436, China; Department of Neurology, Institute of Neuroscience, The Second Affiliated Hospital of Guangzhou Medical University, Key Laboratory of Neurogenetics and Channelopathies of Guangdong Province and the Ministry of Education of China, Guangzhou 510260, China
| | - Xiaosong He
- Key Laboratory of Neuroscience, Key Laboratory of Protein Modification and Degradation, Department of Anatomy, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou 511436, China; Department of Neurology, Institute of Neuroscience, The Second Affiliated Hospital of Guangzhou Medical University, Key Laboratory of Neurogenetics and Channelopathies of Guangdong Province and the Ministry of Education of China, Guangzhou 510260, China
| | - Qingqing Li
- Key Laboratory of Neuroscience, Key Laboratory of Protein Modification and Degradation, Department of Anatomy, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou 511436, China; Department of Neurology, Institute of Neuroscience, The Second Affiliated Hospital of Guangzhou Medical University, Key Laboratory of Neurogenetics and Channelopathies of Guangdong Province and the Ministry of Education of China, Guangzhou 510260, China
| | - Xuejian Kong
- Key Laboratory of Neuroscience, Key Laboratory of Protein Modification and Degradation, Department of Anatomy, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou 511436, China; Department of Neurology, Institute of Neuroscience, The Second Affiliated Hospital of Guangzhou Medical University, Key Laboratory of Neurogenetics and Channelopathies of Guangdong Province and the Ministry of Education of China, Guangzhou 510260, China
| | - Zhenri Ou
- Key Laboratory of Neuroscience, Key Laboratory of Protein Modification and Degradation, Department of Anatomy, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou 511436, China; Department of Neurology, Institute of Neuroscience, The Second Affiliated Hospital of Guangzhou Medical University, Key Laboratory of Neurogenetics and Channelopathies of Guangdong Province and the Ministry of Education of China, Guangzhou 510260, China
| | - Le Zhang
- Key Laboratory of Neuroscience, Key Laboratory of Protein Modification and Degradation, Department of Anatomy, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou 511436, China; Department of Neurology, Institute of Neuroscience, The Second Affiliated Hospital of Guangzhou Medical University, Key Laboratory of Neurogenetics and Channelopathies of Guangdong Province and the Ministry of Education of China, Guangzhou 510260, China
| | - Zhuo Gong
- Key Laboratory of Neuroscience, Key Laboratory of Protein Modification and Degradation, Department of Anatomy, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou 511436, China; Department of Neurology, Institute of Neuroscience, The Second Affiliated Hospital of Guangzhou Medical University, Key Laboratory of Neurogenetics and Channelopathies of Guangdong Province and the Ministry of Education of China, Guangzhou 510260, China
| | - Dahong Long
- Key Laboratory of Neuroscience, Key Laboratory of Protein Modification and Degradation, Department of Anatomy, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou 511436, China; Department of Neurology, Institute of Neuroscience, The Second Affiliated Hospital of Guangzhou Medical University, Key Laboratory of Neurogenetics and Channelopathies of Guangdong Province and the Ministry of Education of China, Guangzhou 510260, China
| | - Jianhua Li
- Department of Physiology, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou 511436, China
| | - Meng Zhang
- Department of Physiology, Augusta University, Augusta 30912, USA
| | - Weidong Ji
- The First Affiliated Hospital, Center for Translational Medicine, Sun Yat-sen University, Guangzhou 510080, China
| | - Wenjuan Zhang
- Department of Preventive Medicine, School of Medicine, Jinan University, Guangzhou, 510632, China
| | - Liping Xu
- Key Laboratory of Neuroscience, Key Laboratory of Protein Modification and Degradation, Department of Anatomy, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou 511436, China; Department of Neurology, Institute of Neuroscience, The Second Affiliated Hospital of Guangzhou Medical University, Key Laboratory of Neurogenetics and Channelopathies of Guangdong Province and the Ministry of Education of China, Guangzhou 510260, China
| | - Aiguo Xuan
- Key Laboratory of Neuroscience, Key Laboratory of Protein Modification and Degradation, Department of Anatomy, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou 511436, China; Department of Neurology, Institute of Neuroscience, The Second Affiliated Hospital of Guangzhou Medical University, Key Laboratory of Neurogenetics and Channelopathies of Guangdong Province and the Ministry of Education of China, Guangzhou 510260, China.
| |
Collapse
|
32
|
Chirivella L, Kirstein M, Ferrón SR, Domingo-Muelas A, Durupt FC, Acosta-Umanzor C, Cano-Jaimez M, Pérez-Sánchez F, Barbacid M, Ortega S, Burks DJ, Fariñas I. Cyclin-Dependent Kinase 4 Regulates Adult Neural Stem Cell Proliferation and Differentiation in Response to Insulin. Stem Cells 2017; 35:2403-2416. [DOI: 10.1002/stem.2694] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2017] [Revised: 06/25/2017] [Accepted: 07/11/2017] [Indexed: 12/21/2022]
Affiliation(s)
- Laura Chirivella
- Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED); Spain
- Departamento de Biología Celular; Biología Funcional y Antropología Física and Estructura de Recerca Interdisciplinar en Biotecnología i Biomedicina (ERI BIOTECMED), Universidad de Valencia; Burjassot Spain
| | - Martina Kirstein
- Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED); Spain
- Departamento de Biología Celular; Biología Funcional y Antropología Física and Estructura de Recerca Interdisciplinar en Biotecnología i Biomedicina (ERI BIOTECMED), Universidad de Valencia; Burjassot Spain
| | - Sacri R. Ferrón
- Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED); Spain
- Departamento de Biología Celular; Biología Funcional y Antropología Física and Estructura de Recerca Interdisciplinar en Biotecnología i Biomedicina (ERI BIOTECMED), Universidad de Valencia; Burjassot Spain
| | - Ana Domingo-Muelas
- Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED); Spain
- Departamento de Biología Celular; Biología Funcional y Antropología Física and Estructura de Recerca Interdisciplinar en Biotecnología i Biomedicina (ERI BIOTECMED), Universidad de Valencia; Burjassot Spain
| | - Fabrice C. Durupt
- Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED); Spain
- Departamento de Biología Celular; Biología Funcional y Antropología Física and Estructura de Recerca Interdisciplinar en Biotecnología i Biomedicina (ERI BIOTECMED), Universidad de Valencia; Burjassot Spain
| | - Carlos Acosta-Umanzor
- Centro de Investigación Biomédica en Red de Diabetes y Enfermedades Metabólicas (CIBERDEM), Centro de Investigación Príncipe Felipe; Valencia Spain
| | - Marifé Cano-Jaimez
- Centro de Investigación Biomédica en Red de Diabetes y Enfermedades Metabólicas (CIBERDEM), Centro de Investigación Príncipe Felipe; Valencia Spain
| | - Francisco Pérez-Sánchez
- Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED); Spain
- Departamento de Biología Celular; Biología Funcional y Antropología Física and Estructura de Recerca Interdisciplinar en Biotecnología i Biomedicina (ERI BIOTECMED), Universidad de Valencia; Burjassot Spain
| | - Mariano Barbacid
- Centro Nacional de Investigaciones Oncológicas (CNIO); Madrid Spain
| | - Sagrario Ortega
- Centro Nacional de Investigaciones Oncológicas (CNIO); Madrid Spain
| | - Deborah J. Burks
- Centro de Investigación Biomédica en Red de Diabetes y Enfermedades Metabólicas (CIBERDEM), Centro de Investigación Príncipe Felipe; Valencia Spain
| | - Isabel Fariñas
- Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED); Spain
- Departamento de Biología Celular; Biología Funcional y Antropología Física and Estructura de Recerca Interdisciplinar en Biotecnología i Biomedicina (ERI BIOTECMED), Universidad de Valencia; Burjassot Spain
| |
Collapse
|
33
|
Liang JH, Yang L, Wu S, Liu SS, Cushman M, Tian J, Li NM, Yang QH, Zhang HA, Qiu YJ, Xiang L, Ma CX, Li XM, Qing H. Discovery of efficient stimulators for adult hippocampal neurogenesis based on scaffolds in dragon's blood. Eur J Med Chem 2017; 136:382-392. [PMID: 28525839 DOI: 10.1016/j.ejmech.2017.05.025] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2017] [Revised: 05/08/2017] [Accepted: 05/09/2017] [Indexed: 01/20/2023]
Abstract
Reduction of hippocampal neurogenesis caused by aging and neurological disorders would impair neural circuits and result in memory loss. A new lead compound (N-trans-3',4'-methylenedioxystilben-4-yl acetamide 27) has been discovered to efficiently stimulate adult rats' neurogenesis. In-depth structure-activity relationship studies proved the necessity of a stilbene scaffold that is absent in highly cytotoxic analogs such as chalcones and heteroaryl rings and inactive analogs such as diphenyl acetylene and diphenyl ethane, and validated the importance of an NH in the carboxamide and a methylenedioxy substituent on the benzene ring. Immunohistochemical staining and biochemical analysis indicate, in contrast to previously reported neuroprotective chemicals, N-stilbenyl carboxamides have extra capacity for neuroproliferation-type neurogenesis, thereby providing a foundation for improving the plasticity of the adult mammalian brain.
Collapse
Affiliation(s)
- Jian-Hua Liang
- School of Life Science, Beijing Institute of Technology, Beijing 100081, China.
| | - Liang Yang
- School of Life Science, Beijing Institute of Technology, Beijing 100081, China
| | - Si Wu
- School of Life Science, Beijing Institute of Technology, Beijing 100081, China
| | - Si-Si Liu
- School of Life Science, Beijing Institute of Technology, Beijing 100081, China
| | - Mark Cushman
- Department of Medicinal Chemistry and Molecular Pharmacology, College of Pharmacy, and the Purdue Center for Cancer Research, Purdue University 47907 USA
| | - Jing Tian
- Biomedical School, Beijing City University, Beijing 100094, China
| | - Nuo-Min Li
- School of Life Science, Beijing Institute of Technology, Beijing 100081, China
| | - Qing-Hu Yang
- School of Life Science, Beijing Institute of Technology, Beijing 100081, China
| | - He-Ao Zhang
- School of Life Science, Beijing Institute of Technology, Beijing 100081, China
| | - Yun-Jie Qiu
- School of Life Science, Beijing Institute of Technology, Beijing 100081, China
| | - Lin Xiang
- School of Life Science, Beijing Institute of Technology, Beijing 100081, China
| | - Cong-Xuan Ma
- School of Life Science, Beijing Institute of Technology, Beijing 100081, China
| | - Xue-Meng Li
- School of Life Science, Beijing Institute of Technology, Beijing 100081, China
| | - Hong Qing
- School of Life Science, Beijing Institute of Technology, Beijing 100081, China.
| |
Collapse
|
34
|
Pang Q, Zhang H, Chen Z, Wu Y, Bai M, Liu Y, Zhao Y, Tu F, Liu C, Chen X. Role of caveolin-1/vascular endothelial growth factor pathway in basic fibroblast growth factor-induced angiogenesis and neurogenesis after treadmill training following focal cerebral ischemia in rats. Brain Res 2017; 1663:9-19. [DOI: 10.1016/j.brainres.2017.03.012] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2016] [Revised: 03/07/2017] [Accepted: 03/08/2017] [Indexed: 11/26/2022]
|
35
|
|
36
|
Defteralı Ç, Verdejo R, Majeed S, Boschetti-de-Fierro A, Méndez-Gómez HR, Díaz-Guerra E, Fierro D, Buhr K, Abetz C, Martínez-Murillo R, Vuluga D, Alexandre M, Thomassin JM, Detrembleur C, Jérôme C, Abetz V, López-Manchado MÁ, Vicario-Abejón C. In Vitro Evaluation of Biocompatibility of Uncoated Thermally Reduced Graphene and Carbon Nanotube-Loaded PVDF Membranes with Adult Neural Stem Cell-Derived Neurons and Glia. Front Bioeng Biotechnol 2016; 4:94. [PMID: 27999773 PMCID: PMC5138223 DOI: 10.3389/fbioe.2016.00094] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2016] [Accepted: 11/18/2016] [Indexed: 01/03/2023] Open
Abstract
Graphene, graphene-based nanomaterials (GBNs), and carbon nanotubes (CNTs) are being investigated as potential substrates for the growth of neural cells. However, in most in vitro studies, the cells were seeded on these materials coated with various proteins implying that the observed effects on the cells could not solely be attributed to the GBN and CNT properties. Here, we studied the biocompatibility of uncoated thermally reduced graphene (TRG) and poly(vinylidene fluoride) (PVDF) membranes loaded with multi-walled CNTs (MWCNTs) using neural stem cells isolated from the adult mouse olfactory bulb (termed aOBSCs). When aOBSCs were induced to differentiate on coverslips treated with TRG or control materials (polyethyleneimine-PEI and polyornithine plus fibronectin-PLO/F) in a serum-free medium, neurons, astrocytes, and oligodendrocytes were generated in all conditions, indicating that TRG permits the multi-lineage differentiation of aOBSCs. However, the total number of cells was reduced on both PEI and TRG. In a serum-containing medium, aOBSC-derived neurons and oligodendrocytes grown on TRG were more numerous than in controls; the neurons developed synaptic boutons and oligodendrocytes were more branched. In contrast, neurons growing on PVDF membranes had reduced neurite branching, and on MWCNTs-loaded membranes oligodendrocytes were lower in numbers than in controls. Overall, these findings indicate that uncoated TRG may be biocompatible with the generation, differentiation, and maturation of aOBSC-derived neurons and glial cells, implying a potential use for TRG to study functional neuronal networks.
Collapse
Affiliation(s)
- Çağla Defteralı
- Instituto Cajal, Consejo Superior de Investigaciones Científicas (IC-CSIC), Madrid, Spain
- Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED-ISCIII), Madrid, Spain
| | - Raquel Verdejo
- Instituto de Ciencia y Tecnología de Polímeros (ICTP-CSIC), Madrid, Spain
| | - Shahid Majeed
- Helmholtz-Zentrum Geesthacht (HZG), Zentrum für Material- und Küstenforschung GmbH, Institut für Polymerforschung, Geesthacht, Germany
| | - Adriana Boschetti-de-Fierro
- Helmholtz-Zentrum Geesthacht (HZG), Zentrum für Material- und Küstenforschung GmbH, Institut für Polymerforschung, Geesthacht, Germany
| | - Héctor R. Méndez-Gómez
- Instituto Cajal, Consejo Superior de Investigaciones Científicas (IC-CSIC), Madrid, Spain
- Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED-ISCIII), Madrid, Spain
| | - Eva Díaz-Guerra
- Instituto Cajal, Consejo Superior de Investigaciones Científicas (IC-CSIC), Madrid, Spain
- Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED-ISCIII), Madrid, Spain
| | - Daniel Fierro
- Helmholtz-Zentrum Geesthacht (HZG), Zentrum für Material- und Küstenforschung GmbH, Institut für Polymerforschung, Geesthacht, Germany
| | - Kristian Buhr
- Helmholtz-Zentrum Geesthacht (HZG), Zentrum für Material- und Küstenforschung GmbH, Institut für Polymerforschung, Geesthacht, Germany
| | - Clarissa Abetz
- Helmholtz-Zentrum Geesthacht (HZG), Zentrum für Material- und Küstenforschung GmbH, Institut für Polymerforschung, Geesthacht, Germany
| | | | - Daniela Vuluga
- Department of Chemistry, Center for Education and Research on Macromolecules (CERM), University of Liège, Liège, Belgium
| | - Michaël Alexandre
- Department of Chemistry, Center for Education and Research on Macromolecules (CERM), University of Liège, Liège, Belgium
| | - Jean-Michel Thomassin
- Department of Chemistry, Center for Education and Research on Macromolecules (CERM), University of Liège, Liège, Belgium
| | - Christophe Detrembleur
- Department of Chemistry, Center for Education and Research on Macromolecules (CERM), University of Liège, Liège, Belgium
| | - Christine Jérôme
- Department of Chemistry, Center for Education and Research on Macromolecules (CERM), University of Liège, Liège, Belgium
| | - Volker Abetz
- Helmholtz-Zentrum Geesthacht (HZG), Zentrum für Material- und Küstenforschung GmbH, Institut für Polymerforschung, Geesthacht, Germany
| | | | - Carlos Vicario-Abejón
- Instituto Cajal, Consejo Superior de Investigaciones Científicas (IC-CSIC), Madrid, Spain
- Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED-ISCIII), Madrid, Spain
| |
Collapse
|
37
|
Iosef Husted C, Valencik M. Insulin-like growth factors and their potential role in cardiac epigenetics. J Cell Mol Med 2016; 20:1589-602. [PMID: 27061217 PMCID: PMC4956935 DOI: 10.1111/jcmm.12845] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2015] [Accepted: 02/24/2016] [Indexed: 12/13/2022] Open
Abstract
Cardiovascular disease (CVD) constitutes a major public health threat worldwide, accounting for 17.3 million deaths annually. Heart disease and stroke account for the majority of healthcare costs in the developed world. While much has been accomplished in understanding the pathophysiology, molecular biology and genetics underlying the diagnosis and treatment of CVD, we know less about the role of epigenetics and their molecular determinants. The impact of environmental changes and epigenetics in CVD is now emerging as critically important in understanding the origin of disease and the development of new therapeutic approaches to prevention and treatment. This review focuses on the emerging role of epigenetics mediated by insulin like-growth factors-I and -II in major CVDs such as heart failure, cardiac hypertrophy and diabetes.
Collapse
Affiliation(s)
- Cristiana Iosef Husted
- Department of Pharmacology, University of Nevada, Reno School of Medicine (UNSOM), Reno, NV, USA
| | - Maria Valencik
- Department of Pharmacology, University of Nevada, Reno School of Medicine (UNSOM), Reno, NV, USA
| |
Collapse
|
38
|
Lee JE, Lim MS, Park JH, Park CH, Koh HC. PTEN Promotes Dopaminergic Neuronal Differentiation Through Regulation of ERK-Dependent Inhibition of S6K Signaling in Human Neural Stem Cells. Stem Cells Transl Med 2016; 5:1319-1329. [PMID: 27388240 DOI: 10.5966/sctm.2015-0200] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2015] [Accepted: 04/18/2016] [Indexed: 02/05/2023] Open
Abstract
: Phosphatase and tension homolog (PTEN) is a widely known negative regulator of insulin/phosphatidylinositol 3-kinase (PI3K) signaling. The PI3K/Akt/mammalian target of rapamycin (PI3K/Akt/mTOR) and Ras-extracellular signal-regulated kinase (Ras-ERK) signaling pathways are the chief mechanisms controlling the survival, proliferation, and differentiation of neural stem cells (NSCs). However, the roles of PTEN in Akt/mTOR and ERK signaling during proliferation and neuronal differentiation of human NSCs (hNSCs) are poorly understood. Treatment of proliferating hNSCs with a specific inhibitor of PTEN or overexpression of the PTEN inactive mutant G129E resulted in an increase in the expression levels of Ki67, p-S6 kinase (p-S6K), and p-ERK without affecting p-Akt expression during proliferation of hNSCs. Therefore, we focused on the regulatory effect of PTEN in S6K and ERK signaling during dopaminergic neuronal differentiation of hNSCs. Overexpression of PTEN during neuronal differentiation of hNSCs caused an increase in p-S6K expression and a decrease in p-ERK expression. Conversely, inhibition of PTEN increased p-ERK expression and decreased p-S6K expression. Inhibition of ERK by a specific chemical inhibitor, U0126, promoted neuronal generation, especially of tyrosine hydroxylase-positive neurons. p-S6K expression increased in a time-dependent manner during differentiation, and this effect was enhanced by U0126. These results indicated that PTEN promoted neuronal differentiation by inhibition of ERK signaling, which in turn induced activation of S6K. Our data suggest that ERK pathways participate in crosstalk with S6K through PTEN signaling during neuronal differentiation of hNSCs. These results represent a novel pathway by which PTEN may modulate the interplay between ERK and S6K signaling, leading to increased neuronal differentiation in hNSCs. SIGNIFICANCE This article adds to the body of knowledge about the mechanism of extracellular signal-regulated kinase (ERK)-mediated differentiation by describing the molecular function of phosphatase and tension homolog (PTEN) during the neuronal differentiation of human neural stem cells (hNSCs). Previous studies showed that S6K signaling promoted neuronal differentiation in hNSCs via the phosphatidylinositol 3-kinase Akt-mammalian target of rapamycin signaling pathway. A further series of studies investigated whether this S6 kinase-induced differentiation in hNSCs involves regulation of ERK signaling by PTEN. The current study identified a novel mechanism by which PTEN regulates neuronal differentiation in hNSCs, suggesting that activating PTEN function promotes dopaminergic neuronal differentiation and providing an important resource for future studies of PTEN function.
Collapse
Affiliation(s)
- Jeong Eun Lee
- Department of Pharmacology, College of Medicine, Hanyang University, Seoul, Republic of Korea Hanyang Biomedical Research Institute, Seoul, Republic of Korea
| | - Mi Sun Lim
- Hanyang Biomedical Research Institute, Seoul, Republic of Korea Graduate School of Biomedical Science and Engineering, Hanyang University, Seoul, Republic of Korea Research and Development Center, Jeil Pharmaceutical Company, Limited, Yongin, Republic of Korea
| | - Jae Hyeon Park
- Department of Pharmacology, College of Medicine, Hanyang University, Seoul, Republic of Korea Hanyang Biomedical Research Institute, Seoul, Republic of Korea Graduate School of Biomedical Science and Engineering, Hanyang University, Seoul, Republic of Korea
| | - Chang Hwan Park
- Hanyang Biomedical Research Institute, Seoul, Republic of Korea Graduate School of Biomedical Science and Engineering, Hanyang University, Seoul, Republic of Korea
| | - Hyun Chul Koh
- Department of Pharmacology, College of Medicine, Hanyang University, Seoul, Republic of Korea Hanyang Biomedical Research Institute, Seoul, Republic of Korea Graduate School of Biomedical Science and Engineering, Hanyang University, Seoul, Republic of Korea
| |
Collapse
|
39
|
Nieto-Estévez V, Oueslati-Morales CO, Li L, Pickel J, Morales AV, Vicario-Abejón C. Brain Insulin-Like Growth Factor-I Directs the Transition from Stem Cells to Mature Neurons During Postnatal/Adult Hippocampal Neurogenesis. Stem Cells 2016; 34:2194-209. [DOI: 10.1002/stem.2397] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2015] [Revised: 03/23/2016] [Accepted: 04/11/2016] [Indexed: 01/29/2023]
Affiliation(s)
- Vanesa Nieto-Estévez
- Instituto Cajal, Consejo Superior de Investigaciones Científicas (CSIC)
- Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED); Madrid Spain
| | - Carlos O. Oueslati-Morales
- Instituto Cajal, Consejo Superior de Investigaciones Científicas (CSIC)
- Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED); Madrid Spain
| | - Lingling Li
- Instituto Cajal, Consejo Superior de Investigaciones Científicas (CSIC)
| | - James Pickel
- Transgenic Core, National Institute of Mental Health, National Institutes of Health; Bethesda Maryland USA
| | - Aixa V. Morales
- Instituto Cajal, Consejo Superior de Investigaciones Científicas (CSIC)
| | - Carlos Vicario-Abejón
- Instituto Cajal, Consejo Superior de Investigaciones Científicas (CSIC)
- Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED); Madrid Spain
| |
Collapse
|
40
|
Mishra KK, Gupta S, Banerjee K. SOCS3 induces neurite differentiation and promotes neuronal cell survival. IUBMB Life 2016; 68:468-76. [PMID: 27118613 DOI: 10.1002/iub.1505] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2016] [Accepted: 04/05/2016] [Indexed: 12/29/2022]
Abstract
Cytokines and growth factors play an important role in neuronal survival as well as cell death. The family of suppressors of cytokine signalling (SOCS) proteins, which includes SOCS1-7 and cytokine-induced suppressor (CIS), has been shown to act as negative regulators of cytokine-induced signalling. In this report, we highlight the role of SOCS3 in regulating neuronal differentiation and survival. We observed increased SOCS3 expression upon differentiation of PC12 cells as well as neural stem cells. SOCS3 overexpression upregulated differentiation of both neural stem cells and PC12 cells even in the absence of NGF, as evidenced by enhanced neurite outgrowth and upregulation of GAP43, marker associated with neurite outgrowth. siRNA-mediated silencing of SOCS3 confirmed the potential role of SOCS3 in neuritogenesis. We observed that, SOCS3-induced neurite differentiation was mediated via the PI3 kinase pathway. Another interesting observation was that SOCS3 overexpression promoted neuronal cell survival under H2 O2 -mediated stress indicating its fundamental role in cell survival. In conclusion, our results indicate that SOCS3 promotes differentiation and survival of neural cells and could be potentially useful in future therapy for treatment of neurodegenerative disorders. © 2016 IUBMB Life, 68(6):468-476, 2016.
Collapse
Affiliation(s)
- Kanchan Kumar Mishra
- Eukaryotic Gene Expression Lab National Institute of Immunology, New Delhi, India
| | - Sakshi Gupta
- Eukaryotic Gene Expression Lab National Institute of Immunology, New Delhi, India
| | - Kakoli Banerjee
- Eukaryotic Gene Expression Lab National Institute of Immunology, New Delhi, India
| |
Collapse
|
41
|
Nieto-Estévez V, Defterali Ç, Vicario-Abejón C. IGF-I: A Key Growth Factor that Regulates Neurogenesis and Synaptogenesis from Embryonic to Adult Stages of the Brain. Front Neurosci 2016; 10:52. [PMID: 26941597 PMCID: PMC4763060 DOI: 10.3389/fnins.2016.00052] [Citation(s) in RCA: 176] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2015] [Accepted: 02/05/2016] [Indexed: 12/28/2022] Open
Abstract
The generation of neurons in the adult mammalian brain requires the activation of quiescent neural stem cells (NSCs). This activation and the sequential steps of neuron formation from NSCs are regulated by a number of stimuli, which include growth factors. Insulin-like growth factor-I (IGF-I) exert pleiotropic effects, regulating multiple cellular processes depending on their concentration, cell type, and the developmental stage of the animal. Although IGF-I expression is relatively high in the embryonic brain its levels drop sharply in the adult brain except in neurogenic regions, i.e., the hippocampus (HP) and the subventricular zone-olfactory bulb (SVZ-OB). By contrast, the expression of IGF-IR remains relatively high in the brain irrespective of the age of the animal. Evidence indicates that IGF-I influences NSC proliferation and differentiation into neurons and glia as well as neuronal maturation including synapse formation. Furthermore, recent studies have shown that IGF-I not only promote adult neurogenesis by regulating NSC number and differentiation but also by influencing neuronal positioning and migration as described during SVZ-OB neurogenesis. In this article we will revise and discuss the actions reported for IGF-I signaling in a variety of in vitro and in vivo models, focusing on the maintenance and proliferation of NSCs/progenitors, neurogenesis, and neuron integration in synaptic circuits.
Collapse
Affiliation(s)
- Vanesa Nieto-Estévez
- Consejo Superior de Investigaciones Científicas (CSIC), Instituto CajalMadrid, Spain; Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED)Madrid, Spain
| | - Çağla Defterali
- Consejo Superior de Investigaciones Científicas (CSIC), Instituto CajalMadrid, Spain; Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED)Madrid, Spain
| | - Carlos Vicario-Abejón
- Consejo Superior de Investigaciones Científicas (CSIC), Instituto CajalMadrid, Spain; Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED)Madrid, Spain
| |
Collapse
|
42
|
Inhibition of PI3K Signalling Selectively Affects Medulloblastoma Cancer Stem Cells. BIOMED RESEARCH INTERNATIONAL 2015; 2015:973912. [PMID: 26557719 PMCID: PMC4628705 DOI: 10.1155/2015/973912] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/28/2015] [Accepted: 07/26/2015] [Indexed: 01/07/2023]
Abstract
Medulloblastoma is the most common malignant brain tumor of childhood. Although survival has slowly increased in the past years, the prognosis of these patients remains unfavourable. In this context, it has been recently shown that the intracellular signaling pathways activated during embryonic cerebellar development are deregulated in MDB. One of the most important is PI3K/AKT/mTOR, implicated in cell proliferation, survival, growth, and protein synthesis. Moreover, a fraction of MDB cells has been shown to posses stemlike features, to express typical neuronal precursor markers (Nestin and CD133), and to be maintained by the hypoxic cerebellar microenvironment. This subpopulation of MDB cells is considered to be responsible for treatment resistance and recurrence. In this study, we evaluated the effects of PI3K/AKT pathway inhibition on primary cultures of MDB and particularly on the cancer stem cell (CSC) population (CD133+). PI3K inhibition was able to counteract MDB cell growth and to promote differentiation of stemlike MDB cells. Moreover, PI3K/AKT pathway suppression induced dramatic cell death through activation of the mitochondrial proapoptotic cascade. Finally, analysis on the stem cells fraction revealed that the MDB CSC population is more sensitive to PI3K targeting compared to the whole cancerous population and its nonstem cell counterpart.
Collapse
|
43
|
Mao J, Huang S, Liu S, Feng X, Yu M, Liu J, Sun YE, Chen G, Yu Y, Zhao J, Pei G. A herbal medicine for Alzheimer's disease and its active constituents promote neural progenitor proliferation. Aging Cell 2015; 14:784-96. [PMID: 26010330 PMCID: PMC4568966 DOI: 10.1111/acel.12356] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/20/2015] [Indexed: 12/24/2022] Open
Abstract
Aberrant neural progenitor cell (NPC) proliferation and self-renewal have been linked to age-related neurodegeneration and neurodegenerative disorders including Alzheimer’s disease (AD). Rhizoma Acori tatarinowii is a traditional Chinese herbal medicine against cognitive decline. In this study, we found that the extract of Rhizoma Acori tatarinowii (AT) and its active constituents, asarones, promote NPC proliferation. Oral administration of AT enhanced NPC proliferation and neurogenesis in the hippocampi of adult and aged mice as well as that of transgenic AD model mice. AT and its fractions also enhanced the proliferation of NPCs cultured in vitro. Further analysis identified α-asarone and β-asarone as the two active constituents of AT in promoting neurogenesis. Our mechanistic study revealed that AT and asarones activated extracellular signal-regulated kinase (ERK) but not Akt, two critical kinase cascades for neurogenesis. Consistently, the inhibition of ERK activities effectively blocked the enhancement of NPC proliferation by AT or asarones. Our findings suggest that AT and asarones, which can be orally administrated, could serve as preventive and regenerative therapeutic agents to promote neurogenesis against age-related neurodegeneration and neurodegenerative disorders.
Collapse
Affiliation(s)
- Jianxin Mao
- State Key Laboratory of Cell Biology Institute of Biochemistry and Cell Biology Shanghai Institutes for Biological Sciences Chinese Academy of Sciences 320 Yueyang Road Shanghai 200031 China
- Graduate School University of Chinese Academy of Sciences Chinese Academy of Sciences 320 Yueyang Road Shanghai 200031 China
| | - Shichao Huang
- State Key Laboratory of Cell Biology Institute of Biochemistry and Cell Biology Shanghai Institutes for Biological Sciences Chinese Academy of Sciences 320 Yueyang Road Shanghai 200031 China
| | - Shangfeng Liu
- Department of Ophthalmology Shanghai Tenth People's Hospital Tongji University School of Medicine Shanghai 200072 China
| | - Xiao‐Lin Feng
- Institute of Traditional Chinese Medicine and Natural Products College of Pharmacy Jinan University Guangzhou 510632 China
| | - Miao Yu
- Key Laboratory of Structure‐Based Drug Design & Discovery Ministry of Education Shenyang Pharmaceutical University Shenyang 110016 China
| | - Junjun Liu
- Department of Ophthalmology Shanghai Tenth People's Hospital Tongji University School of Medicine Shanghai 200072 China
| | - Yi Eve Sun
- Translational Center for Stem Cell Research Tongji Hospital Tongji University School of Medicine Shanghai 200065 China
| | - Guoliang Chen
- Key Laboratory of Structure‐Based Drug Design & Discovery Ministry of Education Shenyang Pharmaceutical University Shenyang 110016 China
| | - Yang Yu
- Institute of Traditional Chinese Medicine and Natural Products College of Pharmacy Jinan University Guangzhou 510632 China
| | - Jian Zhao
- State Key Laboratory of Cell Biology Institute of Biochemistry and Cell Biology Shanghai Institutes for Biological Sciences Chinese Academy of Sciences 320 Yueyang Road Shanghai 200031 China
| | - Gang Pei
- State Key Laboratory of Cell Biology Institute of Biochemistry and Cell Biology Shanghai Institutes for Biological Sciences Chinese Academy of Sciences 320 Yueyang Road Shanghai 200031 China
- School of Life Science and Technology, and the Collaborative Innovation Center for Brain Science Tongji University Shanghai 200092 China
| |
Collapse
|
44
|
Involvement of caspase-3/PTEN signaling pathway in isoflurane-induced decrease of self-renewal capacity of hippocampal neural precursor cells. Brain Res 2015; 1625:275-86. [PMID: 26367448 DOI: 10.1016/j.brainres.2015.08.047] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2015] [Revised: 08/23/2015] [Accepted: 08/24/2015] [Indexed: 01/14/2023]
Abstract
Evidence has shown that children exposed to isoflurane anesthesia in early childhood display long-term cognitive abnormalities, and decreased self-renewal capacity of hippocampal neural precursor cells (NPCs), which are associated with cognition impairment. Caspase-3 has long been considered as a mediator in isoflurane-induced neuroapoptosis. However, accumulating data indicate that caspase-3 also plays a non-apoptotic negative regulatory role in NPCs self-renewal. In this study we used in vitro NPC cultures to test whether caspase-3 and its downstream signaling effectors were involved in isoflurane-induced impairment of the self-renewal capacity of hippocampal NPCs. We showed that isoflurane exposure induced a decrease in the self-renewal capacity of hippocampal NPCs by decreasing proliferation and increasing neuronal differentiation. Furthermore, we found that isoflurane exposure significantly increased the levels of active caspase-3 and decreased the levels of phospho-PTEN under both proliferation and differentiation conditions. Inhibition of either caspase-3 with Z-DEVD-fmk or PTEN with BPV (phen) in NPCs, attenuated the isoflurane-induced decrease of their proliferation and increase of neuronal differentiation. Application of Z-DEVD-fmk also attenuated isoflurane-induced decrease in phospho-PTEN expression. Taken together, our in vitro results reveal a previously uncharacterized involvement of caspase-3/PTEN signaling in the isoflurane-induced impairment of NPCs self-renewal, and contribute to the identification of novel targets for maintaining NPCs self-renewal in isoflurane-induced cognitive dysfunction.
Collapse
|
45
|
Zhang ZG, Chopp M. Promoting brain remodeling to aid in stroke recovery. Trends Mol Med 2015; 21:543-8. [PMID: 26278490 PMCID: PMC4567429 DOI: 10.1016/j.molmed.2015.07.005] [Citation(s) in RCA: 56] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2015] [Revised: 07/17/2015] [Accepted: 07/17/2015] [Indexed: 12/13/2022]
Abstract
Endogenous brain repair after stroke involves a set of highly interactive processes, such as angiogenesis, neurogenesis, oligodendrogenesis, synaptogenesis, and axonal outgrowth, which together orchestrate neurological recovery. During the past several years, there have been advances in our understanding of miRNAs and histone deacetylases (HDACs) in brain repair processes after stroke. Emerging data indicate the important role of exosomes for intercellular communication in promoting coupled brain remodeling processes. These advances will likely have a major impact on the development of restorative therapies for ischemic brain repair, consequently leading to improvement of neurological function. In this review, we provide an update on our current understanding of cellular and molecular mechanisms of miRNAs, exosomes, and HDACs in brain restorative processes after stroke.
Collapse
Affiliation(s)
| | - Michael Chopp
- Department of Neurology, Henry Ford Hospital, Detroit, MI, USA; Department of Physics, Oakland University, Rochester, MI, USA
| |
Collapse
|
46
|
S6K Promotes Dopaminergic Neuronal Differentiation Through PI3K/Akt/mTOR-Dependent Signaling Pathways in Human Neural Stem Cells. Mol Neurobiol 2015; 53:3771-3782. [PMID: 26143260 DOI: 10.1007/s12035-015-9325-9] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2015] [Accepted: 06/25/2015] [Indexed: 02/03/2023]
Abstract
It has recently been reported that the phosphoinositide 3-kinase (PI3K)/Akt/mammalian target of rapamycin (mTOR) signaling pathway regulates neuronal differentiation of neural stem cells (NSCs) derived from rats or mice and is essential for the self-renewal of human embryonic stem cells (hESCs). However, the roles of PI3K/Akt/mTOR signaling pathways during proliferation and dopaminergic neuronal differentiation of human neural stem cells (hNSCs) are poorly understood. In this study, we examined the effect of regulation of these intracellular signaling pathways in hNSCs on the potential to maintain proliferation and induce dopaminergic neuronal differentiation. Dopaminergic neuronal differentiation depended on the concentration of insulin in our culture system. Inhibition of PI3K/Akt with LY294002 reduced proliferation and inhibited dopaminergic neuronal differentiation of these cells. We also found that rapamycin, a specific inhibitor of mTOR, significantly reduced neuronal differentiation without affecting proliferation. Inhibition of the Akt/mTOR signaling pathway led to inhibition of p70 ribosomal S6 kinase (S6K) signaling, which reduced dopaminergic neuronal differentiation in hNSCs. Inhibition of S6K by a specific chemical inhibitor, PF-4708671 inhibited dopaminergic neuronal differentiation of hNSCs. As expected, transduction with a dominant negative S6K1 (S6K1-DN) construct impaired dopaminergic neuronal differentiation of hNSCs. Conversely, overexpression of constitutively active S6K1 (S6K1-CA) promoted dopaminergic neuronal differentiation of these cells. In a survival study, 4 weeks after transplantation, no or very few donor cells were viable in striata grafted with S6K1-DN-transduced hNSCs. In contrast, S6K1-CA-transduced hNSCs survived, integrated into striata to generate tubular masses of grafts and differentiated toward TH-positive cells. Taken together, these data demonstrated that insulin promotes dopaminergic neuronal differentiation through a PI3K/Akt/mTOR-dependent pathway and that S6K plays a critical role in dopaminergic neuronal differentiation in hNSCs.
Collapse
|
47
|
Fernández-Hernández I, Rhiner C. New neurons for injured brains? The emergence of new genetic model organisms to study brain regeneration. Neurosci Biobehav Rev 2015; 56:62-72. [PMID: 26118647 DOI: 10.1016/j.neubiorev.2015.06.021] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2015] [Revised: 06/22/2015] [Accepted: 06/23/2015] [Indexed: 11/15/2022]
Abstract
Neuronal circuits in the adult brain have long been viewed as static and stable. However, research in the past 20 years has shown that specialized regions of the adult brain, which harbor adult neural stem cells, continue to produce new neurons in a wide range of species. Brain plasticity is also observed after injury. Depending on the extent and permissive environment of neurogenic regions, different organisms show great variability in their capacity to replace lost neurons by endogenous neurogenesis. In Zebrafish and Drosophila, the formation of new neurons from progenitor cells in the adult brain was only discovered recently. Here, we compare properties of adult neural stem cells, their niches and regenerative responses from mammals to flies. Current models of brain injury have revealed that specific injury-induced genetic programs and comparison of neuronal fitness are implicated in brain repair. We highlight the potential of these recently implemented models of brain regeneration to identify novel regulators of stem cell activation and regenerative neurogenesis.
Collapse
Affiliation(s)
| | - Christa Rhiner
- Institute of Cell Biology, IZB, Baltzerstrasse 4, 3012 Bern, Switzerland.
| |
Collapse
|
48
|
Hong S, Washington PM, Kim A, Yang CP, Yu TS, Kernie SG. Apolipoprotein E Regulates Injury-Induced Activation of Hippocampal Neural Stem and Progenitor Cells. J Neurotrauma 2015; 33:362-74. [PMID: 25905575 DOI: 10.1089/neu.2014.3860] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Partial recovery from even severe traumatic brain injury (TBI) is ubiquitous and occurs largely through unknown mechanisms. Recent evidence suggests that hippocampal neural stem/progenitor cell (NSPC) activation and subsequent neurogenesis are responsible for at least some aspects of spontaneous recovery following TBI. Apolipoprotein E (ApoE) regulates postnatal neurogenesis in the hippocampus and is therefore a putative mediator of injury-induced neurogenesis. Further, ApoE isoforms in humans are associated with different cognitive outcomes following TBI. To investigate the role of ApoE in injury-induced neurogenesis, we exposed wild-type, ApoE-deficient, and human ApoE isoform-specific (ApoE3 and ApoE4) transgenic mice crossed with nestin-green fluorescent protein (GFP) reporter mice to controlled cortical impact (CCI) and assessed progenitor activation at 2 d post-injury using unbiased stereology. GFP+ progenitor cells were increased by approximately 120% in the ipsilateral hippocampus in injured wild-type mice, compared with sham mice (p<0.01). Co-localization of GFP+ cells with bromodeoxyrudine (BrdU) to label dividing cells indicated increased proliferation of progenitors in the injured hippocampus (p<0.001). This proliferative injury response was absent in ApoE-deficient mice, as no increase in GFP+ cells was observed in the injured hippocampus, compared with sham mice, despite an overall increase in proliferation indicated by increased BrdU+ cells (86%; p<0.05). CCI-induced proliferation of GFP+ cells in both ApoE3 and ApoE4 mice but the overall response was attenuated in ApoE4 mice due to fewer GFP+ cells at baseline. We demonstrate that ApoE is required for injury-induced proliferation of NSPCs after experimental TBI, and that this response is influenced by human APOE genotype.
Collapse
Affiliation(s)
- Sue Hong
- 1 Departments of Pediatrics and Pathology and Cell Biology, Columbia University College of Physicians and Surgeons , New York, New York
| | - Patricia M Washington
- 1 Departments of Pediatrics and Pathology and Cell Biology, Columbia University College of Physicians and Surgeons , New York, New York
| | - Ahleum Kim
- 1 Departments of Pediatrics and Pathology and Cell Biology, Columbia University College of Physicians and Surgeons , New York, New York
| | - Cui-Ping Yang
- 2 Key Laboratory of Animal Models and Human Disease Mechanisms , Chinese Academy of Sciences, Kunming, Yunnan, China
| | - Tzong-Shiue Yu
- 1 Departments of Pediatrics and Pathology and Cell Biology, Columbia University College of Physicians and Surgeons , New York, New York
| | - Steven G Kernie
- 1 Departments of Pediatrics and Pathology and Cell Biology, Columbia University College of Physicians and Surgeons , New York, New York
| |
Collapse
|
49
|
Alpha-Linolenic Acid-Induced Increase in Neurogenesis is a Key Factor in the Improvement in the Passive Avoidance Task After Soman Exposure. Neuromolecular Med 2015; 17:251-69. [DOI: 10.1007/s12017-015-8353-y] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2014] [Accepted: 04/11/2015] [Indexed: 02/01/2023]
|
50
|
Abstract
Partial recovery from brain injury due to trauma, hypoxia, or stroke, is ubiquitous and occurs largely through unknown mechanisms. It is now well accepted that injury enhances proliferation of quiescent stem and progenitor cells in specialized niches within the brain. However, whether this injury-induced neurogenesis contributes to recovery after brain injury remains controversial. Recent evidence suggests that hippocampal neural stem/precursor cell activation and subsequent neurogenesis are responsible for at least some aspects of spontaneous recovery following brain injury from a variety of causes. However, other aspects of injury-induced neurogenesis, including its contribution to adverse sequelae such as seizures, are still being investigated. The purpose of this review is to provide an overview of adult hippocampal neurogenesis and how it relates to injury and explain how current mouse technology is allowing for better understanding of whether manipulating this natural process might eventually help inform therapy following brain injury.
Collapse
Affiliation(s)
- Tzong-Shiue Yu
- Departments of Pediatrics and Pathology & Cell Biology, Columbia University College of Physicians and Surgeons, New York, NY, USA
| | - Patricia M Washington
- Departments of Pediatrics and Pathology & Cell Biology, Columbia University College of Physicians and Surgeons, New York, NY, USA
| | - Steven G Kernie
- Departments of Pediatrics and Pathology & Cell Biology, Columbia University College of Physicians and Surgeons, New York, NY, USA
| |
Collapse
|