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Wang F, Wang Q, Wang L, Ren J, Song X, Tian Y, Zheng C, Yang J, Ming D. Low-Intensity Focused Ultrasound Stimulation Ameliorates Working Memory Dysfunctions in Vascular Dementia Rats via Improving Neuronal Environment. Front Aging Neurosci 2022; 14:814560. [PMID: 35264943 PMCID: PMC8899543 DOI: 10.3389/fnagi.2022.814560] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2021] [Accepted: 01/24/2022] [Indexed: 12/19/2022] Open
Abstract
Working memory impairment is one of the remarkable cognitive dysfunctions induced by vascular dementia (VD), and it is necessary to explore an effective treatment. Recently, low-intensity focused ultrasound stimulation (LIFUS) has been found notable neuroprotective effects on some neurological diseases, including VD. However, whether it could ameliorate VD-induced working memory impairment was still not been clarified. The purpose of this study was to address this issue and the underlying mechanism. We established VD rat model using the bilateral common carotid artery occlusion (BCCAO) and applied the LIFUS (center frequency = 0.5 MHz; Ispta = 500 mW/cm2, 10 mins/day) to bilateral medial prefrontal cortex (mPFC) for 2 weeks since 2 weeks after the surgery. The main results showed that the LIFUS could significantly improve the performance of VD rats in the specific working memory tasks (delayed nonmatch-to-sample task and step-down task), which might be associated with the improved synaptic function. We also found the improvement in the cerebral blood flow (CBF) and reduced neuroinflammation in mPFC after LIFUS treatment indicated by the inhibition of Toll-like receptor (TLR4)/nuclear factor kappa B (NF-κB) pathway and the decrease of proinflammatory cytokines. The amelioration of CBF and neuroinflammation may promote the living environment of the neurons in VD which then contribute to the survival of neurons and the improvement in synaptic function. Taken together, our findings indicate that LIFUS targeted mPFC can effectively ameliorate reward-based spatial working memory and fear working memory dysfunctions induced by VD via restoring the living environment, survivability, and synaptic functions of the neurons in mPFC of VD rats. This study adds to the evidence that LIFUS could become a promising and non-invasive treatment strategy for the clinical treatment of central nervous system diseases related to cognitive impairments in the future.
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Affiliation(s)
- Faqi Wang
- Academy of Medical Engineering and Translational Medicine, Tianjin University, Tianjin, China
| | - Qian Wang
- Academy of Medical Engineering and Translational Medicine, Tianjin University, Tianjin, China
| | - Ling Wang
- College of Precision Instruments and Optoelectronics Engineering, Tianjin University, Tianjin, China
- Tianjin Key Laboratory of Brain Science and Neuroengineering, Tianjin, China
| | - Jing Ren
- Academy of Medical Engineering and Translational Medicine, Tianjin University, Tianjin, China
| | - Xizi Song
- Academy of Medical Engineering and Translational Medicine, Tianjin University, Tianjin, China
- Tianjin Key Laboratory of Brain Science and Neuroengineering, Tianjin, China
| | - Yutao Tian
- Academy of Medical Engineering and Translational Medicine, Tianjin University, Tianjin, China
- Tianjin Key Laboratory of Brain Science and Neuroengineering, Tianjin, China
| | - Chenguang Zheng
- College of Precision Instruments and Optoelectronics Engineering, Tianjin University, Tianjin, China
- Tianjin Key Laboratory of Brain Science and Neuroengineering, Tianjin, China
| | - Jiajia Yang
- Academy of Medical Engineering and Translational Medicine, Tianjin University, Tianjin, China
- College of Precision Instruments and Optoelectronics Engineering, Tianjin University, Tianjin, China
- Tianjin Key Laboratory of Brain Science and Neuroengineering, Tianjin, China
- *Correspondence: Jiajia Yang,
| | - Dong Ming
- Academy of Medical Engineering and Translational Medicine, Tianjin University, Tianjin, China
- College of Precision Instruments and Optoelectronics Engineering, Tianjin University, Tianjin, China
- Tianjin Key Laboratory of Brain Science and Neuroengineering, Tianjin, China
- Dong Ming,
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2
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Seifert C, Balz E, Herzog S, Korolev A, Gaßmann S, Paland H, Fink MA, Grube M, Marx S, Jedlitschky G, Tzvetkov MV, Rauch BH, Schroeder HWS, Bien-Möller S. PIM1 Inhibition Affects Glioblastoma Stem Cell Behavior and Kills Glioblastoma Stem-like Cells. Int J Mol Sci 2021; 22:ijms222011126. [PMID: 34681783 PMCID: PMC8541331 DOI: 10.3390/ijms222011126] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2021] [Revised: 10/05/2021] [Accepted: 10/09/2021] [Indexed: 12/15/2022] Open
Abstract
Despite comprehensive therapy and extensive research, glioblastoma (GBM) still represents the most aggressive brain tumor in adults. Glioma stem cells (GSCs) are thought to play a major role in tumor progression and resistance of GBM cells to radiochemotherapy. The PIM1 kinase has become a focus in cancer research. We have previously demonstrated that PIM1 is involved in survival of GBM cells and in GBM growth in a mouse model. However, little is known about the importance of PIM1 in cancer stem cells. Here, we report on the role of PIM1 in GBM stem cell behavior and killing. PIM1 inhibition negatively regulates the protein expression of the stem cell markers CD133 and Nestin in GBM cells (LN-18, U-87 MG). In contrast, CD44 and the astrocytic differentiation marker GFAP were up-regulated. Furthermore, PIM1 expression was increased in neurospheres as a model of GBM stem-like cells. Treatment of neurospheres with PIM1 inhibitors (TCS PIM1-1, Quercetagetin, and LY294002) diminished the cell viability associated with reduced DNA synthesis rate, increased caspase 3 activity, decreased PCNA protein expression, and reduced neurosphere formation. Our results indicate that PIM1 affects the glioblastoma stem cell behavior, and its inhibition kills glioblastoma stem-like cells, pointing to PIM1 targeting as a potential anti-glioblastoma therapy.
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Affiliation(s)
- Carolin Seifert
- Department of Pharmacology, University Medicine Greifswald, 17489 Greifswald, Germany; (C.S.); (E.B.); (S.H.); (A.K.); (S.G.); (H.P.); (M.A.F.); (M.G.); (G.J.); (M.V.T.); (B.H.R.)
- Department of Neurosurgery, University Medicine Greifswald, 17489 Greifswald, Germany; (S.M.); (H.W.S.S.)
| | - Ellen Balz
- Department of Pharmacology, University Medicine Greifswald, 17489 Greifswald, Germany; (C.S.); (E.B.); (S.H.); (A.K.); (S.G.); (H.P.); (M.A.F.); (M.G.); (G.J.); (M.V.T.); (B.H.R.)
- Department of Neurosurgery, University Medicine Greifswald, 17489 Greifswald, Germany; (S.M.); (H.W.S.S.)
| | - Susann Herzog
- Department of Pharmacology, University Medicine Greifswald, 17489 Greifswald, Germany; (C.S.); (E.B.); (S.H.); (A.K.); (S.G.); (H.P.); (M.A.F.); (M.G.); (G.J.); (M.V.T.); (B.H.R.)
| | - Anna Korolev
- Department of Pharmacology, University Medicine Greifswald, 17489 Greifswald, Germany; (C.S.); (E.B.); (S.H.); (A.K.); (S.G.); (H.P.); (M.A.F.); (M.G.); (G.J.); (M.V.T.); (B.H.R.)
| | - Sebastian Gaßmann
- Department of Pharmacology, University Medicine Greifswald, 17489 Greifswald, Germany; (C.S.); (E.B.); (S.H.); (A.K.); (S.G.); (H.P.); (M.A.F.); (M.G.); (G.J.); (M.V.T.); (B.H.R.)
| | - Heiko Paland
- Department of Pharmacology, University Medicine Greifswald, 17489 Greifswald, Germany; (C.S.); (E.B.); (S.H.); (A.K.); (S.G.); (H.P.); (M.A.F.); (M.G.); (G.J.); (M.V.T.); (B.H.R.)
- Department of Neurosurgery, University Medicine Greifswald, 17489 Greifswald, Germany; (S.M.); (H.W.S.S.)
| | - Matthias A. Fink
- Department of Pharmacology, University Medicine Greifswald, 17489 Greifswald, Germany; (C.S.); (E.B.); (S.H.); (A.K.); (S.G.); (H.P.); (M.A.F.); (M.G.); (G.J.); (M.V.T.); (B.H.R.)
- Department of Neurosurgery, University Medicine Greifswald, 17489 Greifswald, Germany; (S.M.); (H.W.S.S.)
| | - Markus Grube
- Department of Pharmacology, University Medicine Greifswald, 17489 Greifswald, Germany; (C.S.); (E.B.); (S.H.); (A.K.); (S.G.); (H.P.); (M.A.F.); (M.G.); (G.J.); (M.V.T.); (B.H.R.)
| | - Sascha Marx
- Department of Neurosurgery, University Medicine Greifswald, 17489 Greifswald, Germany; (S.M.); (H.W.S.S.)
| | - Gabriele Jedlitschky
- Department of Pharmacology, University Medicine Greifswald, 17489 Greifswald, Germany; (C.S.); (E.B.); (S.H.); (A.K.); (S.G.); (H.P.); (M.A.F.); (M.G.); (G.J.); (M.V.T.); (B.H.R.)
| | - Mladen V. Tzvetkov
- Department of Pharmacology, University Medicine Greifswald, 17489 Greifswald, Germany; (C.S.); (E.B.); (S.H.); (A.K.); (S.G.); (H.P.); (M.A.F.); (M.G.); (G.J.); (M.V.T.); (B.H.R.)
| | - Bernhard H. Rauch
- Department of Pharmacology, University Medicine Greifswald, 17489 Greifswald, Germany; (C.S.); (E.B.); (S.H.); (A.K.); (S.G.); (H.P.); (M.A.F.); (M.G.); (G.J.); (M.V.T.); (B.H.R.)
- Department of Pharmacology and Toxicology, Carl von Ossietzky University Oldenburg, 26129 Oldenburg, Germany
| | - Henry W. S. Schroeder
- Department of Neurosurgery, University Medicine Greifswald, 17489 Greifswald, Germany; (S.M.); (H.W.S.S.)
| | - Sandra Bien-Möller
- Department of Pharmacology, University Medicine Greifswald, 17489 Greifswald, Germany; (C.S.); (E.B.); (S.H.); (A.K.); (S.G.); (H.P.); (M.A.F.); (M.G.); (G.J.); (M.V.T.); (B.H.R.)
- Department of Neurosurgery, University Medicine Greifswald, 17489 Greifswald, Germany; (S.M.); (H.W.S.S.)
- Correspondence: ; Tel.: +49-03834-865646
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3
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Corey S, Bonsack B, Heyck M, Shear A, Sadanandan N, Zhang H, Borlongan CV. Harnessing the anti-inflammatory properties of stem cells for transplant therapy in hemorrhagic stroke. BRAIN HEMORRHAGES 2020; 1:24-33. [PMID: 34056567 PMCID: PMC8158660 DOI: 10.1016/j.hest.2019.12.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Hemorrhagic stroke is a global health crisis plagued by neuroinflammation in the acute and chronic phases. Neuroinflammation approximates secondary cell death, which in turn robustly contributes to stroke pathology. Both the physiological and behavioral symptoms of stroke correlate with various inflammatory responses in animal and human studies. That slowing the secondary cell death mediated by this inflammation may attenuate stroke pathology presents a novel treatment strategy. To this end, experimental therapies employing stem cell transplants support their potential for neuroprotection and neuroregeneration after hemorrhagic stroke. In this review, we evaluate experiments using different types of stem cell transplants as treatments for stroke-induced neuroinflammation. We also update this emerging area by examining recent preclinical and clinical trials that have deployed these therapies. While further investigations are warranted to solidify their therapeutic profile, the reviewed studies largely posit stem cells as safe and potent biologics for stroke, specifically owing to their mode of action for sequestering neuroinflammation and promoting neuroregenerative processes.
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Affiliation(s)
- Sydney Corey
- Center of Excellence for Aging and Brain Repair, University of South Florida, College of Medicine, 12901 Bruce B Downs Blvd, Tampa, FL 33612, USA
| | - Brooke Bonsack
- Center of Excellence for Aging and Brain Repair, University of South Florida, College of Medicine, 12901 Bruce B Downs Blvd, Tampa, FL 33612, USA
| | - Matt Heyck
- Center of Excellence for Aging and Brain Repair, University of South Florida, College of Medicine, 12901 Bruce B Downs Blvd, Tampa, FL 33612, USA
| | - Alex Shear
- Center of Excellence for Aging and Brain Repair, University of South Florida, College of Medicine, 12901 Bruce B Downs Blvd, Tampa, FL 33612, USA
| | - Nadia Sadanandan
- Center of Excellence for Aging and Brain Repair, University of South Florida, College of Medicine, 12901 Bruce B Downs Blvd, Tampa, FL 33612, USA
| | - Henry Zhang
- Center of Excellence for Aging and Brain Repair, University of South Florida, College of Medicine, 12901 Bruce B Downs Blvd, Tampa, FL 33612, USA
| | - Cesar V Borlongan
- Center of Excellence for Aging and Brain Repair, University of South Florida, College of Medicine, 12901 Bruce B Downs Blvd, Tampa, FL 33612, USA
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4
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Tuazon JP, Castelli V, Lee JY, Desideri GB, Stuppia L, Cimini AM, Borlongan CV. Neural Stem Cells. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2019; 1201:79-91. [PMID: 31898782 DOI: 10.1007/978-3-030-31206-0_4] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Neural stem cell (NSC) transplantation has provided the basis for the development of potentially powerful new therapeutic cell-based strategies for a broad spectrum of clinical diseases, including stroke, psychiatric illnesses such as fetal alcohol spectrum disorders, and cancer. Here, we discuss pertinent preclinical investigations involving NSCs, including how NSCs can ameliorate these diseases, the current barriers hindering NSC-based treatments, and future directions for NSC research. There are still many translational requirements to overcome before clinical therapeutic applications, such as establishing optimal dosing, route of delivery, and timing regimens and understanding the exact mechanism by which transplanted NSCs lead to enhanced recovery. Such critical lab-to-clinic investigations will be necessary in order to refine NSC-based therapies for debilitating human disorders.
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Affiliation(s)
- Julian P Tuazon
- Center of Excellence for Aging and Brain Repair, Department of Neurosurgery and Brain Repair, University of South Florida College of Medicine, Tampa, FL, USA
| | - Vanessa Castelli
- Center of Excellence for Aging and Brain Repair, Department of Neurosurgery and Brain Repair, University of South Florida College of Medicine, Tampa, FL, USA
| | - Jea-Young Lee
- Center of Excellence for Aging and Brain Repair, Department of Neurosurgery and Brain Repair, University of South Florida College of Medicine, Tampa, FL, USA
| | | | - Liborio Stuppia
- Department of Psychological, Humanistic and Territorial Sciences, University G. D'Annunzio, Chieti, Italy
| | - Anna Maria Cimini
- Department of Life, Health and Environmental Sciences, University of L'Aquila, L'Aquila, Italy.,Sbarro Institute for Cancer Research and Molecular Medicine, Department of Biology, Temple University, Philadelphia, PA, USA
| | - Cesar V Borlongan
- Center of Excellence for Aging and Brain Repair, Department of Neurosurgery and Brain Repair, University of South Florida College of Medicine, Tampa, FL, USA.
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5
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Wu LY, He YL, Zhu LL. Possible Role of PHD Inhibitors as Hypoxia-Mimicking Agents in the Maintenance of Neural Stem Cells' Self-Renewal Properties. Front Cell Dev Biol 2018; 6:169. [PMID: 30619851 PMCID: PMC6297135 DOI: 10.3389/fcell.2018.00169] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2018] [Accepted: 11/28/2018] [Indexed: 12/17/2022] Open
Abstract
Hypoxia is the most critical factor for maintaining stemness. During embryonic development, neural stem cells (NSCs) reside in hypoxic niches, and different levels of oxygen pressure and time of hypoxia exposure play important roles in the development of NSCs. Such hypoxic niches exist in adult brain tissue, where the neural precursors originate. Hypoxia-inducible factors (HIFs) are key transcription heterodimers consisting of regulatory α-subunits (HIF-1α, HIF-2α, HIF-3α) and a constitutive β-subunit (HIF-β). Regulation of downstream targets determines the fate of NSCs. In turn, the stability of HIFs-α is regulated by prolyl hydroxylases (PHDs), whose activity is principally modulated by PHD substrates like oxygen (O2), α-ketoglutarate (α-KG), and the co-factors ascorbate (ASC) and ferrous iron (Fe2+). It follows that the transcriptional activity of HIFs is actually determined by the contents of O2, α-KG, ASC, and Fe2+. In normoxia, HIFs-α are rapidly degraded via the ubiquitin-proteasome pathway, in which PHDs, activated by O2, lead to hydroxylation of HIFs-α at residues 402 and 564, followed by recognition by the tumor suppressor protein von Hippel–Lindau (pVHL) as an E3 ligase and ubiquitin labeling. Conversely, in hypoxia, the activity of PHDs is inhibited by low O2 levels and HIFs-α can thus be stabilized. Hence, suppression of PHD activity in normoxic conditions, mimicking the effect of hypoxia, might be beneficial for preserving the stemness of NSCs, and it is clinically relevant as a therapeutic approach for enhancing the number of NSCs in vitro and for cerebral ischemia injury in vivo. This study will review the putative role of PHD inhibitors on the self-renewal of NSCs.
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Affiliation(s)
- Li-Ying Wu
- Beijing Institute of Cognition and Brain Sciences, Beijing, China.,State Key Laboratory of Proteomics, Beijing Proteome Research Center, Beijing Institute of Radiation Medicine, Beijing, China
| | - Yun-Ling He
- Beijing Institute of Cognition and Brain Sciences, Beijing, China
| | - Ling-Ling Zhu
- Beijing Institute of Cognition and Brain Sciences, Beijing, China.,Co-innovation Center of Neuroregeneration, Nantong University, Nantong, China
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6
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Hosseini SM, Ziaee SM, Haider KH, Karimi A, Tabeshmehr P, Abbasi Z. Preconditioned neurons with NaB and nicorandil, a favorable source for stroke cell therapy. J Cell Biochem 2018; 119:10301-10313. [PMID: 30145846 DOI: 10.1002/jcb.27372] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2018] [Accepted: 06/28/2018] [Indexed: 12/31/2022]
Abstract
Poor survival of stem cells in the harsh microenvironment at the site of stroke, especially during acute phase of injury, remains a serious obstacle to achieve the desired prognosis. We hypothesized that combined treatment of neural stem cells (NSCs) with small molecules would precondition them to become robust and survive better as compared with the native nonpreconditioned cells. Mouse ganglionic NSCs were isolated, cultured, and characterized. The cells were preconditioned by treatment with sodium butyrate (NaB) and nicorandil (Nico) and transplanted in an experimentally induced stroke model. Sham-operated animals without treatment or animals with experimental stroke treated with basal medium, native NSCs, NSCs preconditioned with NaB or Nico alone were used as controls. The tissue samples and cells with different treatments were used to measure brain-tissue-derived neurotrophic factor (BDNF) level and the activity of phosphatidylinositol-3 kinase (PI3K), apurinic/apyrimidinic endonuclease 1 (APE1), and nuclear factor-κB (NF-κB) p50 both in vitro and in vivo, respectively. Additionally, survival of the cells and recovery indices for stroke were studied. The combined treatment with NaB + Nico resulted in increased BDNF level and higher PI3K, APE1, and the downstream NF-κB activation, which were blocked by pretreatment with their respective inhibitors. Donor cell survival increased postengraftment as assessed by 5-bromo-2'-deoxyuridine immunostaining and reduced Terminal deoxynucleotide transferase dUTP Nick End Labeling positivity at the site of engraftment. There was reduction in proinflammatory cytokines and infiltration of both GFAP + and CD68 + at the injury site. There was reduction in the infarct size and neurological function was preserved in the preconditioned cell treatment group. Our preconditioning approach with small molecules effectively improved the survival as well as functionality of NSCs.
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Affiliation(s)
- Seyed Mojtaba Hosseini
- Student Research Committee, Shiraz University of Medical Sciences, Shiraz, Iran.,Medical Faculty, Cell and Molecular Medicine Student Research Group, Shiraz University of Medical Sciences, Shiraz, Iran.,Stem Cell Laboratory, Department of Anatomy, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Seyyed Mohyeddin Ziaee
- Medical Faculty, Cell and Molecular Medicine Student Research Group, Shiraz University of Medical Sciences, Shiraz, Iran
| | | | - Aliashghar Karimi
- Noncommunicable Diseases Research Center, Fasa University of Medical Sciences, Fasa, Iran
| | - Parisa Tabeshmehr
- Medical Faculty, Cell and Molecular Medicine Student Research Group, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Zahra Abbasi
- Medical Faculty, Cell and Molecular Medicine Student Research Group, Shiraz University of Medical Sciences, Shiraz, Iran
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7
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Stem cell therapy for abrogating stroke-induced neuroinflammation and relevant secondary cell death mechanisms. Prog Neurobiol 2017; 158:94-131. [PMID: 28743464 DOI: 10.1016/j.pneurobio.2017.07.004] [Citation(s) in RCA: 171] [Impact Index Per Article: 24.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2017] [Revised: 07/18/2017] [Accepted: 07/18/2017] [Indexed: 12/13/2022]
Abstract
Ischemic stroke is a leading cause of death worldwide. A key secondary cell death mechanism mediating neurological damage following the initial episode of ischemic stroke is the upregulation of endogenous neuroinflammatory processes to levels that destroy hypoxic tissue local to the area of insult, induce apoptosis, and initiate a feedback loop of inflammatory cascades that can expand the region of damage. Stem cell therapy has emerged as an experimental treatment for stroke, and accumulating evidence supports the therapeutic efficacy of stem cells to abrogate stroke-induced inflammation. In this review, we investigate clinically relevant stem cell types, such as hematopoietic stem cells (HSCs), mesenchymal stem cells (MSCs), endothelial progenitor cells (EPCs), very small embryonic-like stem cells (VSELs), neural stem cells (NSCs), extraembryonic stem cells, adipose tissue-derived stem cells, breast milk-derived stem cells, menstrual blood-derived stem cells, dental tissue-derived stem cells, induced pluripotent stem cells (iPSCs), teratocarcinoma-derived Ntera2/D1 neuron-like cells (NT2N), c-mycER(TAM) modified NSCs (CTX0E03), and notch-transfected mesenchymal stromal cells (SB623), comparing their potential efficacy to sequester stroke-induced neuroinflammation and their feasibility as translational clinical cell sources. To this end, we highlight that MSCs, with a proven track record of safety and efficacy as a transplantable cell for hematologic diseases, stand as an attractive cell type that confers superior anti-inflammatory effects in stroke both in vitro and in vivo. That stem cells can mount a robust anti-inflammatory action against stroke complements the regenerative processes of cell replacement and neurotrophic factor secretion conventionally ascribed to cell-based therapy in neurological disorders.
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8
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Huang L, Wang G. The Effects of Different Factors on the Behavior of Neural Stem Cells. Stem Cells Int 2017; 2017:9497325. [PMID: 29358957 PMCID: PMC5735681 DOI: 10.1155/2017/9497325] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2017] [Accepted: 10/18/2017] [Indexed: 02/07/2023] Open
Abstract
The repair of central nervous system (CNS) injury has been a worldwide problem in the biomedical field. How to reduce the damage to the CNS and promote the reconstruction of the damaged nervous system structure and function recovery has always been the concern of nerve tissue engineering. Multiple differentiation potentials of neural stem cell (NSC) determine the application value for the repair of the CNS injury. Thus, how to regulate the behavior of NSCs becomes the key to treating the CNS injury. So far, a large number of researchers have devoted themselves to searching for a better way to regulate the behavior of NSCs. This paper summarizes the effects of different factors on the behavior of NSCs in the past 10 years, especially on the proliferation and differentiation of NSCs. The final purpose of this review is to provide a more detailed theoretical basis for the clinical repair of the CNS injury by nerve tissue engineering.
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Affiliation(s)
- Lixiang Huang
- Department of Chemistry and Biology, College of Science, National University of Defense Technology, Changsha, Hunan 410073, China
| | - Gan Wang
- Department of Chemistry and Biology, College of Science, National University of Defense Technology, Changsha, Hunan 410073, China
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9
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Zhang L, Han X, Cheng X, Tan XF, Zhao HY, Zhang XH. Denervated hippocampus provides a favorable microenvironment for neuronal differentiation of endogenous neural stem cells. Neural Regen Res 2016; 11:597-603. [PMID: 27212920 PMCID: PMC4870916 DOI: 10.4103/1673-5374.180744] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
Fimbria-fornix transection induces both exogenous and endogenous neural stem cells to differentiate into neurons in the hippocampus. This indicates that the denervated hippocampus provides an environment for neuronal differentiation of neural stem cells. However, the pathways and mechanisms in this process are still unclear. Seven days after fimbria fornix transection, our reverse transcription polymerase chain reaction, western blot assay, and enzyme linked immunosorbent assay results show a significant increase in ciliary neurotrophic factor mRNA and protein expression in the denervated hippocampus. Moreover, neural stem cells derived from hippocampi of fetal (embryonic day 17) Sprague-Dawley rats were treated with ciliary neurotrophic factor for 7 days, with an increased number of microtubule associated protein-2-positive cells and decreased number of glial fibrillary acidic protein-positive cells detected. Our results show that ciliary neurotrophic factor expression is up-regulated in the denervated hippocampus, which may promote neuronal differentiation of neural stem cells in the denervated hippocampus.
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Affiliation(s)
- Lei Zhang
- Department of Human Anatomy, Institute of Neurobiology, Jiangsu Key Laboratory of Neuroregeneration, Medical School, Nantong University, Nantong, Jiangsu Province, China
| | - Xiao Han
- Department of Human Anatomy, Institute of Neurobiology, Jiangsu Key Laboratory of Neuroregeneration, Medical School, Nantong University, Nantong, Jiangsu Province, China
| | - Xiang Cheng
- Department of Human Anatomy, Institute of Neurobiology, Jiangsu Key Laboratory of Neuroregeneration, Medical School, Nantong University, Nantong, Jiangsu Province, China
| | - Xue-Feng Tan
- Department of Human Anatomy, Institute of Neurobiology, Jiangsu Key Laboratory of Neuroregeneration, Medical School, Nantong University, Nantong, Jiangsu Province, China
| | - He-Yan Zhao
- Department of Human Anatomy, Institute of Neurobiology, Jiangsu Key Laboratory of Neuroregeneration, Medical School, Nantong University, Nantong, Jiangsu Province, China
| | - Xin-Hua Zhang
- Department of Human Anatomy, Institute of Neurobiology, Jiangsu Key Laboratory of Neuroregeneration, Medical School, Nantong University, Nantong, Jiangsu Province, China
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10
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Pineda JR, Encinas JM. The Contradictory Effects of Neuronal Hyperexcitation on Adult Hippocampal Neurogenesis. Front Neurosci 2016; 10:74. [PMID: 26973452 PMCID: PMC4776215 DOI: 10.3389/fnins.2016.00074] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2015] [Accepted: 02/17/2016] [Indexed: 01/19/2023] Open
Abstract
Adult hippocampal neurogenesis is a highly plastic process that responds swiftly to neuronal activity. Adult hippocampal neurogenesis can be regulated at the level of neural stem cell recruitment and activation, progenitor proliferation, as well as newborn cell survival and differentiation. An "excitation-neurogenesis" rule was proposed after the demonstration of the capability of cultured neural stem and progenitor cells to intrinsically sense neuronal excitatory activity. In vivo, this property has remained elusive although recently the direct response of neural stem cells to GABA in the hippocampus via GABAA receptors has evidenced a mechanism for a direct talk between neurons and neural stem cells. As it is pro-neurogenic, the effect of excitatory neuronal activity has been generally considered beneficial. But what happens in situations of neuronal hyperactivity in which neurogenesis can be dramatically boosted? In animal models, electroconvulsive shock markedly increases neurogenesis. On the contrary, in epilepsy rodent models, seizures induce the generation of misplaced neurons with abnormal morphological and electrophysiological properties, namely aberrant neurogenesis. We will herein discuss what is known about the mechanisms of influence of neurons on neural stem cells, as well as the severe effects of neuronal hyperexcitation on hippocampal neurogenesis.
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Affiliation(s)
- José R Pineda
- Laboratory of Neural Stem Cells and Neurogenesis, Achucarro Basque Center for Neuroscience Zamudio, Spain
| | - Juan M Encinas
- Laboratory of Neural Stem Cells and Neurogenesis, Achucarro Basque Center for NeuroscienceZamudio, Spain; IKERBASQUE, The Basque Foundation for ScienceBilbao, Spain
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Garbarino VR, Orr ME, Rodriguez KA, Buffenstein R. Mechanisms of oxidative stress resistance in the brain: Lessons learned from hypoxia tolerant extremophilic vertebrates. Arch Biochem Biophys 2015; 576:8-16. [PMID: 25841340 PMCID: PMC4843805 DOI: 10.1016/j.abb.2015.01.029] [Citation(s) in RCA: 57] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2014] [Accepted: 01/31/2015] [Indexed: 01/09/2023]
Abstract
The Oxidative Stress Theory of Aging has had tremendous impact in research involving aging and age-associated diseases including those that affect the nervous system. With over half a century of accrued data showing both strong support for and against this theory, there is a need to critically evaluate the data acquired from common biomedical research models, and to also diversify the species used in studies involving this proximate theory. One approach is to follow Orgel's second axiom that "evolution is smarter than we are" and judiciously choose species that may have evolved to live with chronic or seasonal oxidative stressors. Vertebrates that have naturally evolved to live under extreme conditions (e.g., anoxia or hypoxia), as well as those that undergo daily or seasonal torpor encounter both decreased oxygen availability and subsequent reoxygenation, with concomitant increased oxidative stress. Due to its high metabolic activity, the brain may be particularly vulnerable to oxidative stress. Here, we focus on oxidative stress responses in the brains of certain mouse models as well as extremophilic vertebrates. Exploring the naturally evolved biological tools utilized to cope with seasonal or environmentally variable oxygen availability may yield key information pertinent for how to deal with oxidative stress and thereby mitigate its propagation of age-associated diseases.
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Affiliation(s)
- Valentina R Garbarino
- Department of Physiology, Sam and Ann Barshop Institute for Aging and Longevity Studies, University of Texas Health Science Center at San Antonio, USA.
| | - Miranda E Orr
- Department of Physiology, Sam and Ann Barshop Institute for Aging and Longevity Studies, University of Texas Health Science Center at San Antonio, USA.
| | - Karl A Rodriguez
- Department of Physiology, Sam and Ann Barshop Institute for Aging and Longevity Studies, University of Texas Health Science Center at San Antonio, USA.
| | - Rochelle Buffenstein
- Department of Physiology, Sam and Ann Barshop Institute for Aging and Longevity Studies, University of Texas Health Science Center at San Antonio, USA.
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Morales-Garcia JA, Alonso-Gil S, Gil C, Martinez A, Santos A, Perez-Castillo A. Phosphodiesterase 7 inhibition induces dopaminergic neurogenesis in hemiparkinsonian rats. Stem Cells Transl Med 2015; 4:564-75. [PMID: 25925836 DOI: 10.5966/sctm.2014-0277] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2014] [Accepted: 03/09/2015] [Indexed: 01/08/2023] Open
Abstract
UNLABELLED Parkinson's disease is characterized by a loss of dopaminergic neurons in a specific brain region, the ventral midbrain. Parkinson's disease is diagnosed when approximately 50% of the dopaminergic neurons of the substantia nigra pars compacta (SNpc) have degenerated and the others are already affected by the disease. Thus, it is conceivable that all therapeutic strategies, aimed at neuroprotection, start too late. Therefore, an urgent medical need exists to discover new pharmacological targets and novel drugs with disease-modifying properties. In this regard, modulation of endogenous adult neurogenesis toward a dopaminergic phenotype might provide a new strategy to target Parkinson's disease by partially ameliorating the dopaminergic cell loss that occurs in this disorder. We have previously shown that a phosphodiesterase 7 (PDE7) inhibitor, S14, exerts potent neuroprotective and anti-inflammatory effects in different rodent models of Parkinson's disease, indicating that this compound could represent a novel therapeutic agent to stop the dopaminergic cell loss that occurs during the progression of the disease. In this report we show that, in addition to its neuroprotective effect, the PDE7 inhibitor S14 is also able to induce endogenous neuroregenerative processes toward a dopaminergic phenotype. We describe a population of actively dividing cells that give rise to new neurons in the SNpc of hemiparkinsonian rats after treatment with S14. In conclusion, our data identify S14 as a novel regulator of dopaminergic neuron generation. SIGNIFICANCE Parkinson's disease is a neurodegenerative disorder characterized by the loss of dopaminergic neurons in the ventral midbrain. Currently, no cure and no effective disease-modifying therapy are available for Parkinson's disease; therefore, an urgent medical need exists to discover new pharmacological targets and novel drugs for the treatment of this disorder. The present study reports that an inhibitor of the enzyme phosphodiesterase 7 (S14) induces proliferation in vitro and in vivo of neural stem cells, promoting its differentiation toward a dopaminergic phenotype and therefore enhancing dopaminergic neuron generation. Because this drug is also able to confer neuroprotection of these cells in animal models of Parkinson's disease, S14 holds great promise as a therapeutic new strategy for this disorder.
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Affiliation(s)
- Jose A Morales-Garcia
- Instituto de Investigaciones Biomédicas, CSIC-UAM, Madrid, Spain; Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas, Madrid, Spain; Centro de Investigaciones Biológicas (CSIC), Madrid, Spain; Departamento de Bioquímica y Biología Molecular, Facultad de Medicina, UCM, Madrid, Spain
| | - Sandra Alonso-Gil
- Instituto de Investigaciones Biomédicas, CSIC-UAM, Madrid, Spain; Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas, Madrid, Spain; Centro de Investigaciones Biológicas (CSIC), Madrid, Spain; Departamento de Bioquímica y Biología Molecular, Facultad de Medicina, UCM, Madrid, Spain
| | - Carmen Gil
- Instituto de Investigaciones Biomédicas, CSIC-UAM, Madrid, Spain; Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas, Madrid, Spain; Centro de Investigaciones Biológicas (CSIC), Madrid, Spain; Departamento de Bioquímica y Biología Molecular, Facultad de Medicina, UCM, Madrid, Spain
| | - Ana Martinez
- Instituto de Investigaciones Biomédicas, CSIC-UAM, Madrid, Spain; Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas, Madrid, Spain; Centro de Investigaciones Biológicas (CSIC), Madrid, Spain; Departamento de Bioquímica y Biología Molecular, Facultad de Medicina, UCM, Madrid, Spain
| | - Angel Santos
- Instituto de Investigaciones Biomédicas, CSIC-UAM, Madrid, Spain; Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas, Madrid, Spain; Centro de Investigaciones Biológicas (CSIC), Madrid, Spain; Departamento de Bioquímica y Biología Molecular, Facultad de Medicina, UCM, Madrid, Spain
| | - Ana Perez-Castillo
- Instituto de Investigaciones Biomédicas, CSIC-UAM, Madrid, Spain; Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas, Madrid, Spain; Centro de Investigaciones Biológicas (CSIC), Madrid, Spain; Departamento de Bioquímica y Biología Molecular, Facultad de Medicina, UCM, Madrid, Spain
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