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Thymol protects against 6-hydroxydopamine-induced neurotoxicity in in vivo and in vitro model of Parkinson's disease via inhibiting oxidative stress. BMC Complement Med Ther 2022; 22:40. [PMID: 35144603 PMCID: PMC8832724 DOI: 10.1186/s12906-022-03524-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2021] [Accepted: 02/03/2022] [Indexed: 11/25/2022] Open
Abstract
Background Parkinson’s disease (PD) is a multifactorial movement disorder with the progressive degeneration of the nigrostriatal system that impairs patients’ movement ability. Oxidative stress has been found to affect the etiology and pathogenesis of PD. Thymol, a monoterpenic phenol, is one of the most important dietary constituents in thyme species. It has been used in traditional medicine and possesses some properties including antioxidant, free radical scavenging, anti-inflammatory. In this study, in vitro and in vivo experiments were performed with the thymol in order to investigate its potential neuroprotective effects in models of PD. Methods The present study aimed to evaluate the therapeutic potential of thymol in 6-hydroxydopamine (6-OHDA)-induced cellular and animal models of PD. Results Post-treatment with thymol in vitro was found to protect PC12 cells from toxicity induced by 6-OHDA administration in a dose-dependent manner by (1) increasing cell viability and (2) reduction in intracellular reactive oxygen species, intracellular lipid peroxidation, and annexin-positive cells. In vivo, post-treatment with thymol was protective against neurodegenerative phenotypes associated with systemic administration of 6-OHDA. Results indicated that thymol improved the locomotor activity, catalepsy, akinesia, bradykinesia, and motor coordination and reduced the apomorphine-caused rotation in 6-OHDA-stimulated rats. Increased level of reduced glutathione content and a decreased level of MDA (malondialdehyde) in striatum were observed in the 6-OHDA rats post-treated with thymol. Conclusions Collectively, our findings suggest that thymol exerts protective effects, possibly related to an anti-oxidation mechanism, in these in vitro and in vivo models of Parkinson’s disease.
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Synergistic protection of RGCs by olfactory ensheathing cells and alpha-crystallin through regulation of the Akt/BAD Pathway. J Fr Ophtalmol 2020; 43:718-726. [PMID: 32631692 DOI: 10.1016/j.jfo.2020.02.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2019] [Revised: 01/30/2020] [Accepted: 02/04/2020] [Indexed: 11/22/2022]
Abstract
BACKGROUND Our recent in vivo studies have shown that olfactory ensheathing cells (OECs) and α-crystallin can promote retinal ganglion cell (RGC) survival and axonal regeneration synergistically after optic nerve injury. However, the mechanism is still unknown. OBJECTIVES Here, we studied the synergistic effect and mechanism of OECs and α-crystallin on RGC survival after H2O2-induced oxidative damage and a crushing injury to the optic nerve in an adult rat model. METHODS After H2O2-induced oxidative damage, RGC-5 cells were treated with OECs, α-crystallin or a combination of OECs and α-crystallin. Apoptosis of RGC-5 cells was assessed by flow cytometry. Phosphorylated Akt, BAD, and cleaved-caspase3 were detected by Western blot after optic nerve injury in vivo and H2O2-induced RGC-5 oxidative damage in vitro. RESULTS The results showed that OECs and α-crystallin could both independently inhibit RGC-5 apoptosis (P<0.01), increase the phosphorylation of both Akt and BAD, and decrease the activation of caspase-3 (P<0.01). However, the effect of the combination of both was more significant than either alone. CONCLUSION These findings indicate that inhibition of superoxide damage to RGCs through regulation of the Akt/BAD pathway is one of the mechanisms by which OECs and α-crystallin promote optic nerve recovery after injury.
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Yue Y, Xue Q, Yang J, Li X, Mi Z, Zhao G, Zhang L. Wnt-activated olfactory ensheathing cells stimulate neural stem cell proliferation and neuronal differentiation. Brain Res 2020; 1735:146726. [DOI: 10.1016/j.brainres.2020.146726] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2019] [Revised: 11/04/2019] [Accepted: 02/10/2020] [Indexed: 12/26/2022]
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Ozkan A, Parlak H, Agar A, Özsoy Ö, Tanriover G, Dilmac S, Turgut E, Yargicoglu P. The Effect of Sodium Metabisulphite on Apoptosis in the Experimental Model of Parkinson’s Disease. CURRENT NUTRITION & FOOD SCIENCE 2020. [DOI: 10.2174/1573401314666180503153444] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Background:
The aim of this study was to investigate the mechanisms underlying possible
toxic effects of sulphite on neurodegeneration.
Methods:
Male Wistar rats were assigned to each of the four groups: Control (Control),
Sulphite-treated (Sulphite), 6-hydroxydopamine (6-OHDA)-injected (6-OHDA), and sulphite-treated
and 6-OHDA-injected (6-OHDA+Sulphite). Sodium metabisulphite was administered orally by
gavage at a dose of 100 mg/kg/day for 45 days. Experimental PD was created stereotactically via the
unilateral infusion of 6-OHDA into the medial forebrain bundle (MFB). Rotarod performances,
plasma S-sulfonate levels, caspase-3 activities, Bax and Bcl-2 levels, tyrosine hydroxylase (TH) and
cleaved caspase-3 double staining were investigated.
Results:
The rotarod test showed that the 6-OHDA-injected animals exhibited shorter time on the rod
mile compared to the control group; however, there was no difference between 6-OHDA and
6-OHDA+Sulphite groups. Plasma levels of S-sulfonate in Sulphite and 6-OHDA+ Sulphite groups
increased in contrast to their corresponding control groups. Caspase-3 enzyme activity increased in the
6-OHDA group whereas it did not in control. However, sulphite treatment did not affect these activity
levels. Anti-apoptotic protein Bcl-2 concentration decreased, but the concentration of pro-apoptotic
protein Bax increased in the 6-OHDA group compared to the control group. The expression of
caspase-3 increased, while the number of tyrosine hydroxylase (TH)-positive neurons decreased in
6-OHDA group as compared to the control groups. However, sulphite treatment had no effect on these
parameters.
Conclusion:
Sulphite is not a potentially aggravating factor for the activity of caspase-3 in a 6-
OHDA-induced experimental model of Parkinson’s disease.
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Affiliation(s)
- Ayse Ozkan
- Department of Physiology, Faculty of Medicine, Akdeniz University, Antalya, Turkey
| | - Hande Parlak
- Department of Physiology, Faculty of Medicine, Akdeniz University, Antalya, Turkey
| | - Aysel Agar
- Department of Physiology, Faculty of Medicine, Akdeniz University, Antalya, Turkey
| | - Özlem Özsoy
- Department of Physiology, Faculty of Medicine, Akdeniz University, Antalya, Turkey
| | - Gamze Tanriover
- Department of Histology and Embryology, Faculty of Medicine, Akdeniz University, Antalya, Turkey
| | - Sayra Dilmac
- Department of Histology and Embryology, Faculty of Medicine, Akdeniz University, Antalya, Turkey
| | - Eylem Turgut
- Department of Physiology, Faculty of Medicine, Akdeniz University, Antalya, Turkey
| | - Piraye Yargicoglu
- Department of Biophysics, Faculty of Medicine, Akdeniz University, Antalya, Turkey
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Marques CR, Marote A, Mendes-Pinheiro B, Teixeira FG, Salgado AJ. Cell secretome based approaches in Parkinson’s disease regenerative medicine. Expert Opin Biol Ther 2018; 18:1235-1245. [DOI: 10.1080/14712598.2018.1546840] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Cláudia R. Marques
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal
- ICVS/3B’s – PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Ana Marote
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal
- ICVS/3B’s – PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Bárbara Mendes-Pinheiro
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal
- ICVS/3B’s – PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Fábio G. Teixeira
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal
- ICVS/3B’s – PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - António J. Salgado
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal
- ICVS/3B’s – PT Government Associate Laboratory, Braga/Guimarães, Portugal
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Liu Q, Qin Q, Sun H, Zhong D, An R, Tian Y, Chen H, Jin J, Wang H, Li G. Neuroprotective effect of olfactory ensheathing cells co-transfected with Nurr1 and Ngn2 in both in vitro and in vivo models of Parkinson's disease. Life Sci 2017; 194:168-176. [PMID: 29291419 DOI: 10.1016/j.lfs.2017.12.038] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2017] [Revised: 12/20/2017] [Accepted: 12/29/2017] [Indexed: 12/16/2022]
Abstract
AIMS The aim of the study is to evaluate the neuroprotective effects of olfactory ensheathing cells (OECs) with the overexpression of nuclear receptor-related factor 1 (Nurr1) and neurogenin 2 (Ngn2) in experimental models of Parkinson's disease (PD) and to elucidate the potential mechanism underlying the neuroprotective effects of OECs-Nurr1-Ngn2. MATERIALS AND METHODS In vitro study, OECs-Nurr1-Ngn2 conditioned medium (CM) was added to MPP+-treated PC12 cells for 24h, and then the viability of PC12 cells, oxidative stress and apoptosis were detected. In vivo study, 48 male Sprague-Dawley (SD) rats were randomly divided into four groups. OECs/VMCs and OECs-Nurr1-Ngn2/VMCs groups were transplanted with 2×105 cells each of OECs or OECs-Nurr1-Ngn2 and VMCs into the right striatum one week after a unilateral 6-OHDA lesion. Control and PD groups were injected with 0.9% NaCl and 0.2% ascorbic acid into the same region. Rotational behavior was determined at 2, 4, 6 and 8weeks after injection or implantation in all groups. Neuronal differentiation markers, oxidative stress- and apoptosis-related indicators were detected at 8weeks post-grafting. KEY FINDINGS OECs-Nurr1-Ngn2 increased the viability of PC12 cells, inhibited oxidative stress and apoptosis, and these effects could be reversed by pre-treatment of k252a, a TrkB receptor inhibitor. The behavioral deficits of PD rat were ameliorated by the transplantation of OECs-Nurr1-Ngn2/VMCs. SIGNIFICANCE These results suggest that OECs-Nurr1-Ngn2 exhibits substantial neuroprotective, anti-oxidant, and anti-apoptotic effects against PD via the up-regulation of the neurotrophic factor-TrkB pathway.
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Affiliation(s)
- Qingqing Liu
- Department of Neurology, The First Affiliated Hospital of Harbin Medical University, China
| | - Qi Qin
- Department of Neurology, The First Affiliated Hospital of Harbin Medical University, China
| | - Hongxue Sun
- Department of Neurology, The First Affiliated Hospital of Harbin Medical University, China
| | - Di Zhong
- Department of Neurology, The First Affiliated Hospital of Harbin Medical University, China
| | - Ran An
- Department of Neurology, The First Affiliated Hospital of Harbin Medical University, China
| | - Yushuang Tian
- Department of Neurology, The First Affiliated Hospital of Harbin Medical University, China
| | - Hongping Chen
- Department of Neurology, The First Affiliated Hospital of Harbin Medical University, China
| | - Jing Jin
- Department of Neurology, The First Affiliated Hospital of Harbin Medical University, China
| | - Haining Wang
- Department of Neurology, The First Affiliated Hospital of Harbin Medical University, China
| | - Guozhong Li
- Department of Neurology, The First Affiliated Hospital of Harbin Medical University, China.
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Hassarati RT, Foster LJR, Green RA. Influence of Biphasic Stimulation on Olfactory Ensheathing Cells for Neuroprosthetic Devices. Front Neurosci 2016; 10:432. [PMID: 27757072 PMCID: PMC5048075 DOI: 10.3389/fnins.2016.00432] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2016] [Accepted: 09/06/2016] [Indexed: 12/19/2022] Open
Abstract
The recent success of olfactory ensheathing cell (OEC) assisted regeneration of injured spinal cord has seen a rising interest in the use of these cells in tissue-engineered systems. Previously shown to support neural cell growth through glial scar tissue, OECs have the potential to assist neural network formation in living electrode systems to produce superior neuroprosthetic electrode surfaces. The following study sought to understand the influence of biphasic electrical stimulation (ES), inherent to bionic devices, on cell survival and function, with respect to conventional metallic and developmental conductive hydrogel (CH) coated electrodes. The CH utilized in this study was a biosynthetic hydrogel consisting of methacrylated poly(vinyl-alcohol) (PVA), heparin and gelatin through which poly(3,4-ethylenedioxythiophene) (PEDOT) was electropolymerised. OECs cultured on Pt and CH surfaces were subjected to biphasic ES. Image-based cytometry yielded little significant difference between the viability and cell cycle of OECs cultured on the stimulated and passive samples. The significantly lower voltages measured across the CH electrodes (147 ± 3 mV) compared to the Pt (317 ± 5 mV), had shown to influence a higher percentage of viable cells on CH (91–93%) compared to Pt (78–81%). To determine the functionality of these cells following electrical stimulation, OECs co-cultured with PC12 cells were found to support neural cell differentiation (an indirect measure of neurotrophic factor production) following ES.
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Affiliation(s)
- Rachelle T Hassarati
- Graduate School of Biomedical Engineering, University of New South Wales Australia Sydney, NSW, Australia
| | - L John R Foster
- Bio/Polymers Research Group, School of Biotechnology and Biomolecular Sciences, University of New South Wales Australia Sydney, NSW, Australia
| | - Rylie A Green
- Graduate School of Biomedical Engineering, University of New South Wales Australia Sydney, NSW, Australia
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Zhao XE, Zhu S, Yang H, You J, Song F, Liu Z, Liu S. Simultaneous determination of amino acid and monoamine neurotransmitters in PC12 cells and rats models of Parkinson's disease using a sensitizing derivatization reagent by UHPLC-MS/MS. J Chromatogr B Analyt Technol Biomed Life Sci 2015; 995-996:15-23. [PMID: 26021847 DOI: 10.1016/j.jchromb.2015.05.017] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2014] [Revised: 05/04/2015] [Accepted: 05/14/2015] [Indexed: 11/27/2022]
Abstract
Multi-analytes simultaneous monitoring of amino acid and monoamine neurotransmitters (NTs) has important scientific significance for their related pathology, physiology and drug screening. In this work, in virtue of a mass spectrometry sensitizing reagent 10-ethyl-acridone-3-sulfonyl chloride (EASC) as derivatization reagent, an Ultra High Performance Liquid Chromatography-Tandem Mass Spectrometry (UHPLC-MS/MS) method was developed and validated for simultaneous determination of six amino acid NTs, two monoamine ones and its one metabolite. The simple and rapid derivatization reaction was innovatively combined with plasma preparation by using EASC acetonitrile solution as protein precipitant. This interesting combination brought the advantages of speediness, simpleness and high-throughput in a cost-effective way. Under the optimized conditions, LODs (0.004-3.80nM) and LOQs (0.014-13.3nM) of EASC derivatized-NTs were calculated and found to be significantly lower than those of direct UHPLC-MS/MS detection about 11.5-275.0 and 14.4-371.4 times, respectively. Moreover, EASC derivatization significantly improved chromatographic resolution and matrix effect when compared with direct UPLC-MS/MS detection method without derivatization. Meanwhile, it also brought acceptable precision (3.0-13.0%, peak area CVs%), accuracy (86.4-112.9%), recovery (88.3-107.8%) and stability (3.8-8.5%, peak area CVs%) results. This method was successfully applied for the antiparkinsonian effect evaluation of levodopa and Ginsenoside Rg1 using PC12 cells and rats models by measuring multiple NTs. This provided a new method for the NTs related studies in the future.
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Affiliation(s)
- Xian-En Zhao
- Shandong Provincial Key Laboratory of Life-Organic Analysis, College of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, Shandong, PR China; Changchun Center of Mass Spectrometry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, PR China.
| | - Shuyun Zhu
- Shandong Provincial Key Laboratory of Life-Organic Analysis, College of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, Shandong, PR China
| | - Hongmei Yang
- Changchun Center of Mass Spectrometry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, PR China; Jilin Ginseng Academy, Changchun University of Chinese Medicine, Changchun 130117, China
| | - Jinmao You
- Shandong Provincial Key Laboratory of Life-Organic Analysis, College of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, Shandong, PR China
| | - Fengrui Song
- Changchun Center of Mass Spectrometry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, PR China
| | - Zhiqiang Liu
- Changchun Center of Mass Spectrometry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, PR China
| | - Shuying Liu
- Changchun Center of Mass Spectrometry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, PR China; Jilin Ginseng Academy, Changchun University of Chinese Medicine, Changchun 130117, China.
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Gao K, Liu M, Cao J, Yao M, Lu Y, Li J, Zhu X, Yang Z, Wen A. Protective effects of Lycium barbarum polysaccharide on 6-OHDA-induced apoptosis in PC12 cells through the ROS-NO pathway. Molecules 2014; 20:293-308. [PMID: 25547727 PMCID: PMC6272587 DOI: 10.3390/molecules20010293] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2014] [Accepted: 12/19/2014] [Indexed: 12/11/2022] Open
Abstract
Oxidative stress plays an important role in Parkinson’s disease and other neurodegenerative disorders. Lycium barbarum polysaccharides (LBP), the main active ingredients extracted from the fruits of Lycium barbarum L., have been shown to be a potent antioxidant. In the present study, we investigated the protective effects, and the possible mechanism of action of LBP against 6-hydroxydopamine (6-OHDA)-induced apoptosis in PC12 cells. Our data demonstrated that LBP significantly reversed the 6-OHDA-induced decrease in cell viability, prevented 6-OHDA-induced changes in condensed nuclei and decreased the percentage of apoptotic cells in a dose-dependent manner. Furthermore, LBP also slowed the accumulation of reactive oxygen species (ROS) and nitric oxide (NO), decreased the level of protein-bound 3-nitrotyrosine (3-NT) and intracellular free Ca2+, and inhibiting the overexpression of nuclear factor κB (NF-κB), neuronal nitric oxide synthase (nNOS) and inducible nitric oxide synthase (iNOS). These results demonstrate that LBP prevents 6-OHDA-induced apoptosis in PC12 cells, at least in part through the ROS-NO pathway.
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Affiliation(s)
- Kai Gao
- Department of Pharmacy, Xijing Hospital, Fourth Military Medical University, Xi'an 710032, China.
| | - Meiyou Liu
- Department of Pharmacy, Xijing Hospital, Fourth Military Medical University, Xi'an 710032, China.
| | - Jinyi Cao
- Department of Pharmacy, Xijing Hospital, Fourth Military Medical University, Xi'an 710032, China.
| | - Minna Yao
- Department of Pharmacy, Xijing Hospital, Fourth Military Medical University, Xi'an 710032, China.
| | - Yunyang Lu
- Institute of Materia Medica, School of Pharmacy, Fourth Military Medical University, Xi'an 710032, China.
| | - Jiankang Li
- Department of Pharmacy, Xijing Hospital, Fourth Military Medical University, Xi'an 710032, China.
| | - Xiaohe Zhu
- Department of Pharmacy, Xijing Hospital, Fourth Military Medical University, Xi'an 710032, China.
| | - Zhifu Yang
- Department of Pharmacy, Xijing Hospital, Fourth Military Medical University, Xi'an 710032, China.
| | - Aidong Wen
- Department of Pharmacy, Xijing Hospital, Fourth Military Medical University, Xi'an 710032, China.
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Ma B, Meng X, Wang J, Sun J, Ren X, Qin M, Sun J, Sun G, Sun X. Notoginsenoside R1 attenuates amyloid-β-induced damage in neurons by inhibiting reactive oxygen species and modulating MAPK activation. Int Immunopharmacol 2014; 22:151-9. [PMID: 24975829 DOI: 10.1016/j.intimp.2014.06.018] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2013] [Revised: 06/07/2014] [Accepted: 06/11/2014] [Indexed: 11/19/2022]
Abstract
Progressive accumulation of amyloid-β (Aβ) is a pathological hallmark of Alzheimer's disease (AD). Aβ increases free radical production in neuronal cells, leading to oxidative stress and cell death. An intervention that would reduce Aβ-related neurotoxicity through free radical reduction could advance the treatment of AD. Notoginsenoside R1 (NR1), the major and most active ingredient in the herb Panax notoginseng, can reduce reactive oxygen species and confer some neuroprotective effects. Here, NR1 was applied in a cell-based model of Alzheimer's disease. Cell viability, cell death, reactive oxygen species generation, and mitochondrial membrane potential were assessed in cultured PC12 neuronal cells incubated with Aβ(25-35). In this model, Aβ was neurotoxic and induced necrosis and apoptosis; however, NR1 significantly counteracted the effects of Aβ by increasing cell viability, reducing oxidative damage (including apoptosis), restoring mitochondrial membrane potential, and suppressing stress-activated MAPK signaling pathways. These results promise a great potential agent for Alzheimer's disease and other Aβ pathology-related neuronal degenerative disease.
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Affiliation(s)
- Bo Ma
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, 151, Malianwa North Road, Haidian District, Beijing 100193, PR China
| | - Xiangbao Meng
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, 151, Malianwa North Road, Haidian District, Beijing 100193, PR China
| | - Jing Wang
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, 151, Malianwa North Road, Haidian District, Beijing 100193, PR China
| | - Jing Sun
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, 151, Malianwa North Road, Haidian District, Beijing 100193, PR China
| | - Xiaoyu Ren
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, 151, Malianwa North Road, Haidian District, Beijing 100193, PR China; Eastern Liaoning University, No. 325 Wenhua Street, Yuanbao District, Dandong Liaoning 118003, PR China
| | - Meng Qin
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, 151, Malianwa North Road, Haidian District, Beijing 100193, PR China
| | - Jie Sun
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, 151, Malianwa North Road, Haidian District, Beijing 100193, PR China
| | - Guibo Sun
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, 151, Malianwa North Road, Haidian District, Beijing 100193, PR China.
| | - Xiaobo Sun
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, 151, Malianwa North Road, Haidian District, Beijing 100193, PR China.
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Liu J, Qiu J, Xiong Y, Liu Z, Gao J. The mitochondrial protective mechanism of olfactory ensheathing cells conditioned medium protects against H2O2-induced injury in astrocytes. Neurosci Lett 2013; 555:91-6. [DOI: 10.1016/j.neulet.2013.09.011] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2013] [Revised: 09/04/2013] [Accepted: 09/05/2013] [Indexed: 10/26/2022]
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Lo Furno D, Pellitteri R, Graziano ACE, Giuffrida R, Vancheri C, Gili E, Cardile V. Differentiation of human adipose stem cells into neural phenotype by neuroblastoma- or olfactory ensheathing cells-conditioned medium. J Cell Physiol 2013; 228:2109-18. [PMID: 23589068 DOI: 10.1002/jcp.24386] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2013] [Accepted: 04/05/2013] [Indexed: 01/12/2023]
Abstract
Olfactory ensheathing cells (OECs) are known to be capable of continuous neurogenesis throughout lifetime and are a source of multiple trophic factors important in central nervous system regeneration. B104 neuroblastoma cells are recognized to induce differentiation of neural stem cells into oligodendrocyte precursor cells. Therefore, the aim of this study was to verify if conditioned medium (CM) obtained from OECs or B104 cells was capable of inducing differentiation of adipose tissue-derived mesenchymal stem cells (AT-MSCs) to a neuronal phenotype. In order to this goal, immunocytochemical procedures and flow cytometry analysis were used and some neural markers, as nestin, protein gene product 9.5 (PGP 9.5), microtubule-associated protein 2 (MAP2), glial fibrillary acidic protein (GFAP), and neuron cell surface antigen (A2B5) were examined 24 h and 7 days after the treatment. The results showed that both OECs- or B104-CM treated AT-MSCs express markers of progenitor and mature neurons (nestin, PGP 9.5 and MAP2) in time-dependent manner, display morphological features resembling neuronal cells, and result negative for GFAP and A2B5, astrocyte and oligodendrocyte markers, respectively. This study demonstrated that AT-MSCs can be influenced by the environment, indicating that these cells can respond to environmental cues also versus a neuronal phenotype.
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Affiliation(s)
- Debora Lo Furno
- Department of Bio-medical Sciences, Section Physiology, University of Catania, Catania, Italy
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Ginsenoside RK3 Prevents Hypoxia-Reoxygenation Induced Apoptosis in H9c2 Cardiomyocytes via AKT and MAPK Pathway. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2013; 2013:690190. [PMID: 23935671 PMCID: PMC3712237 DOI: 10.1155/2013/690190] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/08/2013] [Accepted: 06/13/2013] [Indexed: 11/18/2022]
Abstract
Reperfusion therapy is widely utilized for acute myocardial infarction (AMI), but further injury induced by rapidly initiating reperfusion of the heart is often encountered in clinical practice. Ginsenoside RK3 (RK3) is reportedly present in the processed Radix notoginseng that is often used as a major ingredient of the compound preparation for ischemic heart diseases. This study aimed to investigate the possible protective effect of RK3 against hypoxia-reoxygenation (H/R) induced H9c2 cardiomyocytes damage and its underlying mechanisms. Our results showed that RK3 pretreatment caused increased cell viability and decreased levels of LDH leakage compared with the H/R group. Moreover, RK3 pretreatment inhibited cell apoptosis, as evidenced by decreased caspase-3 activity, TUNEL-positive cells, and Bax expression, as well as increased Bcl-2 level. Further mechanism investigation revealed that RK3 prevented H9c2 cardiomyocytes injury and apoptosis induced by H/R via AKT/Nrf-2/HO-1 and MAPK pathways. These observations indicate that RK3 has the potential to exert cardioprotective effects against H/R injury, which might be of great importance to clinical efficacy for AMI treatment.
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Olfactory ensheathing cell-conditioned medium protects astrocytes exposed to hydrogen peroxide stress. Cell Mol Neurobiol 2013; 33:699-705. [PMID: 23584685 DOI: 10.1007/s10571-013-9937-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2013] [Accepted: 04/01/2013] [Indexed: 11/27/2022]
Abstract
The purpose of this study was to observe the effects of olfactory ensheathing cell conditioned medium (OECCM) on damaged astrocytes after exposure to H2O2 in vitro. OECCM was used to treat astrocytes after injury, which was induced by exposure to 500 μmol/L H2O2 for 20 min. The cell morphology was then observed under a light microscope, cell viability assessed by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide assay, cell ultrastructure observed with transmission electron microscopy (TEM), and apoptosis assessed by Annexin V staining followed by cytometry and Western blot. H2O2 induced severe damage to astrocytes as evidenced by decreased cell number, pathological changes in cell morphology, and significantly elevated cell apoptosis. Cells incubated with OECCM displayed significantly improved cell viability and decreased cell apoptotic rate. Under TEM, H2O2-treated cells showed partially broken plasma membranes, swollen rough endoplasmic reticula, visible vacuoles, and swollen or deformed mitochondria with ruptured cristae. Incubation with OECCM significantly ameliorated these pathological changes in astrocytes. These results suggest that OECCM may protect astrocytes from oxidative damage by promoting cell survival while reducing apoptosis of the damaged cells.
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Shukla A, Mohapatra TM, Agrawal AK, Parmar D, Seth K. Salsolinol induced apoptotic changes in neural stem cells: amelioration by neurotrophin support. Neurotoxicology 2013; 35:50-61. [PMID: 23261589 DOI: 10.1016/j.neuro.2012.12.005] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2012] [Revised: 12/14/2012] [Accepted: 12/14/2012] [Indexed: 11/20/2022]
Abstract
Salsolinol (SAL), a catechol isoquinoline has invited considerable attention due to its structural similarity with dopaminergic neurotoxin 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP). Its high endogenous presence in Parkinsonian brain implicated its possible association with the disease process. SAL is also present in alcohol beverages and certain food materials and can get access to brain especially in conditions of immature or impaired BBB. Besides this, the effect of SAL on neural stem cells (NSCs) which are potential candidates for adult neurogenesis and transplantation mediated rejuvenating attempts for Parkinson's disease (PD) brain has not been known so far. NSCs in both the cases have to overcome suppressive cues of diseased brain for their survival and function. In this study we explored the toxicity of SAL toward NSCs focusing on apoptosis and status of PI3K survival signaling. NSCs cultured from embryonic day 11 rat fetal brain including those differentiated to TH(+ve) colonies, when challenged with SAL (1-100μM), elicited a concentration and time dependent cell death/loss of mitochondrial viability. 10μM SAL on which significant mitochondrial impairment initiated was further used to study mechanism of toxicity. Morphological impairment, enhanced TUNEL positivity, cleaved caspase-3 and decreased Bcl-2:Bax suggested apoptosis. Sal toxicity coincided with reduced pAkt level and its downstream effectors: pCREB, pGSK-3β, Bcl-2 and neurotrophins GDNF, BDNF suggesting repressed PI3K/Akt signaling. Multiple neurotrophic factor support in the form of Olfactory Ensheathing Cell's Conditioned Media (OEC CM) potentially protected NSCs against SAL through activating PI3K/Akt pathway. This was confirmed on adding LY294002 the PI3K inhibitor which abolished the protection. We inferred that SAL exerts substantial toxicity toward NSCs. These findings will lead to better understanding of endogenous threats that might affect the fate of transplanted NSCs and their probable antidotes.
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Affiliation(s)
- A Shukla
- Indian Institute of Toxicology Research (CSIR), Developmental Toxicology Division, Mahatma Gandhi Marg, Post Box 80, Lucknow 226 001, India; Department of Microbiology, IMS, Banaras Hindu University, Varanasi 221 005, India
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16
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Kopalli SR, Noh SJ, Koppula S, Suh YH. Methylparaben protects 6-hydroxydopamine-induced neurotoxicity in SH-SY5Y cells and improved behavioral impairments in mouse model of Parkinson's disease. Neurotoxicology 2012; 34:25-32. [PMID: 23068419 DOI: 10.1016/j.neuro.2012.10.003] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2012] [Revised: 09/27/2012] [Accepted: 10/01/2012] [Indexed: 11/28/2022]
Abstract
Parkinson's disease (PD) is a progressive neurodegenerative disorder of unknown etiology. Considerable evidence suggests that free radical formation and oxidative stress might play an important role in the pathogenesis of PD. In the present investigation we evaluated the therapeutic potential of methylparaben (MP) a well known pharmaceutical preservative against 6-hydroxydopamine (6-OHDA) neurotoxicity in SH-SY5Y cells and in a mouse model of PD. At nanomolar concentrations MP (0.01, 0.1 and 1 nM) significantly attenuated the 6-OHDA- and hydrogen peroxide-induced cytotoxicity in SH-SY5Y cells. The reactive oxygen species generated by 6-OHDA in SH-SY5Y cells was also inhibited by MP in a concentration dependent fashion. Further, intranigral damage induced by stereotaxically injecting 6-OHDA in mouse brain was significantly attenuated by MP treatment. MP (1, 10 or 50 μg/kg, i.p.) prevented apomorphine-induced rotational behavior and significantly improved motor deficits in 6-OHDA-lesioned mice. The cognitive impairments as evaluated by passive avoidance and Y-maze task in mice were also attenuated by MP concentration dependently. Immunohistochemical analysis of substantia nigra in MP treated mice showed significantly higher number of surviving tyrosine hydroxylase positive cells. Furthermore, MP also suppressed the lipid peroxidation products in 6-OHDA-lesioned mouse brain tissues. Considering the results obtained, the marked neuroprotection exhibited by MP might be attributed to its potent antioxidant property. In conclusion, this study reports the neuroprotective properties of MP in experimental models of PD for the first time and can be developed as a potential therapeutic agent.
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Affiliation(s)
- Spandana Rajendra Kopalli
- Department of Pharmacology, College of Medicine, Seoul National University, Seoul, Republic of Korea
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Liu N, Tang Z, Yu Z, Xie M, Zhang Y, Yang E, Xu S. Morphological properties and proliferation analysis of olfactory ensheathing cells seeded onto three-dimensional collagen-heparan sulfate biological scaffolds. Neural Regen Res 2012; 7:1213-9. [PMID: 25709618 PMCID: PMC4336954 DOI: 10.3969/j.issn.1673-5374.2012.16.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2012] [Accepted: 04/23/2012] [Indexed: 11/30/2022] Open
Abstract
This study aimed to examine the differences in the morphological properties and proliferation of olfactory ensheathing cells in three-dimensional culture on collagen-heparan sulfate biological scaffolds and in two-dimensional culture on common flat culture plates. The proliferation rate of olfactory ensheathing cells in three-dimensional culture was higher than that in two-dimensional culture, as detected by an MTT assay. In addition, more than half of the olfactory ensheathing cells subcultured using the trypsinization method in three-dimensional culture displayed a spindly Schwann cell-like morphology with extremely long processes, while they showed a flat astrocyte-like morphology in two-dimensional culture. Moreover, spindle-shaped olfactory ensheathing cells tended to adopt an elongated bipolar morphology under both culture conditions. Experimental findings indicate that the morphological properties and proliferation of olfactory ensheathing cells in three-dimensional culture on collagen-heparan sulfate biological scaffolds are better than those in two-dimensional culture.
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Affiliation(s)
- Na Liu
- Department of Neurology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei Province, China
| | - Zhouping Tang
- Department of Neurology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei Province, China
| | - Zhiyuan Yu
- Department of Neurology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei Province, China
| | - Minjie Xie
- Department of Neurology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei Province, China
| | - Yu Zhang
- Department of Neurology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei Province, China
| | - Erfang Yang
- Department of Neurology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei Province, China
| | - Shabei Xu
- Department of Neurology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei Province, China
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Tao L, Li X, Zhang L, Tian J, Li X, Sun X, Li X, Jiang L, Zhang X, Chen J. Protective effect of tetrahydroxystilbene glucoside on 6-OHDA-induced apoptosis in PC12 cells through the ROS-NO pathway. PLoS One 2011; 6:e26055. [PMID: 21998750 PMCID: PMC3188584 DOI: 10.1371/journal.pone.0026055] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2011] [Accepted: 09/16/2011] [Indexed: 01/05/2023] Open
Abstract
Oxidative stress plays an important role in the pathogenesis of neurodegenerative diseases, such as Parkinson's disease. The molecule, 2,3,5,4'-tetrahydr- oxystilbene-2-O-β-D-glucoside (TSG), is a potent antioxidant derived from the Chinese herb, Polygonum multiflorum Thunb. In this study, we investigated the protective effect of TSG against 6-hydroxydopamine-induced apoptosis in rat adrenal pheochromocytoma PC12 cells and the possible mechanisms. Our data demonstrated that TSG significantly reversed the 6-hydroxydopamine-induced decrease in cell viability, prevented 6-hydroxydopamine-induced changes in condensed nuclei and decreased the percentage of apoptotic cells in a dose-dependent manner. In addition, TSG slowed the accumulation of intracellular reactive oxygen species and nitric oxide, counteracted the overexpression of inducible nitric oxide syntheses as well as neuronal nitric oxide syntheses, and also reduced the level of protein-bound 3-nitrotyrosine. These results demonstrate that the protective effects of TSG on rat adrenal pheochromocytoma PC12 cells are mediated, at least in part, by the ROS-NO pathway. Our results indicate that TSG may be effective in providing protection against neurodegenerative diseases associated with oxidative stress.
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Affiliation(s)
- Lizhen Tao
- Research Center of Traditional Chinese Medicine, Xijing Hospital, Fourth Military Medical University, Xi'an, People's Republic of China
| | - Xiaofeng Li
- Research Center of Traditional Chinese Medicine, Xijing Hospital, Fourth Military Medical University, Xi'an, People's Republic of China
| | - Lingling Zhang
- Research Center of Traditional Chinese Medicine, Xijing Hospital, Fourth Military Medical University, Xi'an, People's Republic of China
| | - Jiyu Tian
- Research Center of Traditional Chinese Medicine, Xijing Hospital, Fourth Military Medical University, Xi'an, People's Republic of China
| | - Xiaobing Li
- Research Center of Traditional Chinese Medicine, Xijing Hospital, Fourth Military Medical University, Xi'an, People's Republic of China
| | - Xin Sun
- Research Center of Traditional Chinese Medicine, Xijing Hospital, Fourth Military Medical University, Xi'an, People's Republic of China
| | - Xuefen Li
- Research Center of Traditional Chinese Medicine, Xijing Hospital, Fourth Military Medical University, Xi'an, People's Republic of China
| | - Lin Jiang
- Research Center of Traditional Chinese Medicine, Xijing Hospital, Fourth Military Medical University, Xi'an, People's Republic of China
| | - Xiaojun Zhang
- Department of Physics and Mathematics, School of Biomedical Engineering, Fourth Military Medical University, Xi'an, People's Republic of China
| | - Jianzong Chen
- Research Center of Traditional Chinese Medicine, Xijing Hospital, Fourth Military Medical University, Xi'an, People's Republic of China
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Wang T, Cong R, Yang H, Wu MM, Luo N, Kuang F, You SW. Neutralization of BDNF Attenuates the in vitro Protective Effects of Olfactory Ensheathing Cell-Conditioned Medium on Scratch-Insulted Retinal Ganglion Cells. Cell Mol Neurobiol 2010; 31:357-64. [DOI: 10.1007/s10571-010-9626-5] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2010] [Accepted: 10/22/2010] [Indexed: 02/03/2023]
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Wu F, Poon WS, Lu G, Wang A, Meng H, Feng L, Li Z, Liu S. α-Synuclein knockdown attenuates MPP+ induced mitochondrial dysfunction of SH-SY5Y cells. Brain Res 2009; 1292:173-9. [DOI: 10.1016/j.brainres.2009.07.067] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2009] [Revised: 07/15/2009] [Accepted: 07/16/2009] [Indexed: 11/25/2022]
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Pellitteri R, Spatuzza M, Russo A, Zaccheo D, Stanzani S. Olfactory ensheathing cells represent an optimal substrate for hippocampal neurons: an in vitro study. Int J Dev Neurosci 2009; 27:453-8. [PMID: 19446628 DOI: 10.1016/j.ijdevneu.2009.05.001] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2009] [Revised: 04/21/2009] [Accepted: 05/05/2009] [Indexed: 11/24/2022] Open
Abstract
Olfactory ensheathing cells (OECs) are cells that display Schwann cell or astrocyte-like properties. They are a source of growth factors and adhesion molecules which play a very important role as neuronal support enhancing cellular survival. Over the past 10 years, OECs have emerged as a leading reparative candidate, when transplanted into the injured spinal cord, having shown significant promise in the regeneration of spinal cord lesions. In this study we assessed the efficacy of OECs on the survival and neurite outgrowth of hippocampal neurons in vitro. Co-cultures of OECs and hippocampal of postnatal rats were successfully established and cells were immunocytochemically characterized. Some hippocampal cultures were added with growth factors, as bFGF, NGF and GDNF. Furthermore, conditioned medium from OECs cultures was used to feed some hippocampal neurons coverslips. Our results show that in co-cultures of hippocampal neurons and OECs the number of neurons and their neurite outgrowth were significantly increased in comparison with controls. Moreover, we showed that NGF and GDNF promoted a more positive effect in both neuronal survival and neurite outgrowth than bFGF. OEC-conditioned media stimulated both the neuronal survival and dense neurite outgrowth. These data indicate that OECs, as a source of growth factors, can promote the survival and the neurite outgrowth of hippocampal neurons in vitro and that bFGF, NGF and GDNF support them differently. Therefore, as OECs and their secreted growth factors appear to exert a neuroprotective effect for functional restoration and for neural plasticity in neurodegenerative disorders, they might be considered an approach for functional recovery.
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Affiliation(s)
- Rosalia Pellitteri
- Institute of Neurological Sciences, National Research Council, Section of Catania, via P. Gaifami 18, 95126 Catania, Italy.
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