1
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Zhang C, Liu Y, Zhu H, Huang X, Guo C, Cheng S, Yuan M, Jiang Y, Meng X, Johnston SC, Wang Y, Jin W, Shi F. Potential Protein Signatures for Recurrence Prediction of Ischemic Stroke. J Am Heart Assoc 2024; 13:e032840. [PMID: 38420847 PMCID: PMC10944055 DOI: 10.1161/jaha.123.032840] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/21/2023] [Accepted: 01/19/2024] [Indexed: 03/02/2024]
Abstract
BACKGROUND Acute ischemic stroke is a major cause of mortality and disability worldwide, with approximately 7.4% to 7.7% recurrence within the first 3 months. This study aimed to identify potential biomarkers for predicting stroke recurrence. METHODS AND RESULTS We conducted a nested case-control study using a hospital-based cohort from the Third China National Stroke Registry selecting 214 age- and sex-matched patients with ischemic stroke with hypertension and no history of diabetes or heart disease. Using data-independent acquisition for discovery and multiple reaction monitoring for quantitative validation, we identified 26 differentially expressed proteins in large-artery atherosclerosis (Causative Classification of Ischemic Stroke [CCS]1), 16 in small-artery occlusion (CCS3), and 25 in undetermined causes (CCS5) among patients with recurrent stroke. In the CCS1 and CCS3 subgroups, differentially expressed proteins were associated with platelet aggregation, neuronal death/cerebroprotection, and immune response, whereas differentially expressed proteins in the CCS5 subgroup were linked to altered metabolic functions. Validated recurrence predictors included proteins associated with neutrophil activity and vascular inflammation (TAGLN2 [transgelin 2], ITGAM [integrin subunit α M]/TAGLN2 ratio, ITGAM/MYL9 [myosin light chain 9] ratio, TAGLN2/RSU1 [Ras suppressor protein 1] ratio) in the CCS3 subgroup and proteins associated with endothelial plasticity and blood-brain barrier integrity (ITGAM/MYL9 ratio and COL1A2 [collagen type I α 2 chain]/MYL9 ratio) in the CCS3 and CCS5 subgroups, respectively. CONCLUSIONS These findings provide a foundation for developing a blood-based biomarker panel, using causative classifications, which may be used in routine clinical practice to predict stroke recurrence.
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Affiliation(s)
- Chengyi Zhang
- Center for Neurological Diseases, China National Clinical Research Center for Neurological Diseases, Beijing Tiantan HospitalCapital Medical UniversityBeijingChina
| | - Yang Liu
- Center for Neurological Diseases, China National Clinical Research Center for Neurological Diseases, Beijing Tiantan HospitalCapital Medical UniversityBeijingChina
| | - Huimin Zhu
- Center for Neurological Diseases, China National Clinical Research Center for Neurological Diseases, Beijing Tiantan HospitalCapital Medical UniversityBeijingChina
| | - Xinying Huang
- Center for Neurological Diseases, China National Clinical Research Center for Neurological Diseases, Beijing Tiantan HospitalCapital Medical UniversityBeijingChina
- School of Population Medicine and Public HealthChinese Academy of Medical Sciences & Peking Union Medical CollegeBeijingChina
| | - Cang Guo
- Center for Neurological Diseases, China National Clinical Research Center for Neurological Diseases, Beijing Tiantan HospitalCapital Medical UniversityBeijingChina
| | - Si Cheng
- Center for Neurological Diseases, China National Clinical Research Center for Neurological Diseases, Beijing Tiantan HospitalCapital Medical UniversityBeijingChina
- Changping LaboratoryBeijingChina
| | - Meng Yuan
- Center for Neurological Diseases, China National Clinical Research Center for Neurological Diseases, Beijing Tiantan HospitalCapital Medical UniversityBeijingChina
| | - Yong Jiang
- Center for Neurological Diseases, China National Clinical Research Center for Neurological Diseases, Beijing Tiantan HospitalCapital Medical UniversityBeijingChina
- Changping LaboratoryBeijingChina
| | - Xia Meng
- Center for Neurological Diseases, China National Clinical Research Center for Neurological Diseases, Beijing Tiantan HospitalCapital Medical UniversityBeijingChina
| | | | - Yongjun Wang
- Center for Neurological Diseases, China National Clinical Research Center for Neurological Diseases, Beijing Tiantan HospitalCapital Medical UniversityBeijingChina
- Changping LaboratoryBeijingChina
| | - Wei‐Na Jin
- Center for Neurological Diseases, China National Clinical Research Center for Neurological Diseases, Beijing Tiantan HospitalCapital Medical UniversityBeijingChina
- Changping LaboratoryBeijingChina
| | - Fu‐Dong Shi
- Center for Neurological Diseases, China National Clinical Research Center for Neurological Diseases, Beijing Tiantan HospitalCapital Medical UniversityBeijingChina
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2
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Zhuo Y, Fu B, Peng R, Ma C, Xie S, Qiu L. Aptamer-based expansion microscopy platform enables signal-amplified imaging of dendritic spines. Talanta 2023; 260:124541. [PMID: 37087946 DOI: 10.1016/j.talanta.2023.124541] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Revised: 04/04/2023] [Accepted: 04/08/2023] [Indexed: 04/25/2023]
Abstract
Super-resolution imaging of dendritic spines (DS) can provide valuable information for mechanistic studies related to synaptic physiology and neural plasticity, but challenged by their small dimension (50-200 nm) below the spatial resolution of conventional optical microscopes. In this work, by combining the molecular recognition specificity of aptamer with high programmability of DNA nanotechnology, we developed an expansion microscopy (ExM) platform for imaging DS with enhanced spatial resolution and amplified signal output. Our results demonstrated that the aptamer probe could specifically bind to DS of primary hippocampal neurons. With physical expansion, the DS structure could be effectively enlarged by 4-5 folds, leading to the generation of more structural information. Meantime, the aptamer binding signal could be readily amplified by the introduction of DNA signal amplification strategy, overcoming the drawback of fluorescence dilution during the ExM treatment. This platform enabled evaluation of ischemia-induced early stroke based on the morphological change of DS, highlighting a promising avenue for studying nanoscale structures in biological systems.
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Affiliation(s)
- Yuting Zhuo
- Molecular Science and Biomedicine Laboratory (MBL), State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, College of Biology, Aptamer Engineering Center of Hunan Province, Hunan University, Changsha, Hunan, 410082, China
| | - Bo Fu
- Molecular Science and Biomedicine Laboratory (MBL), State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, College of Biology, Aptamer Engineering Center of Hunan Province, Hunan University, Changsha, Hunan, 410082, China
| | - Ruizi Peng
- Zhejiang Cancer Hospital, Hangzhou Institute of Medicine (HIM), The Chinese Academy of Sciences, Hangzhou, Zhejiang, 310022, China
| | - Changbei Ma
- School of Life Sciences, Central South University, China
| | - Sitao Xie
- Zhejiang Cancer Hospital, Hangzhou Institute of Medicine (HIM), The Chinese Academy of Sciences, Hangzhou, Zhejiang, 310022, China.
| | - Liping Qiu
- Molecular Science and Biomedicine Laboratory (MBL), State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, College of Biology, Aptamer Engineering Center of Hunan Province, Hunan University, Changsha, Hunan, 410082, China; Zhejiang Cancer Hospital, Hangzhou Institute of Medicine (HIM), The Chinese Academy of Sciences, Hangzhou, Zhejiang, 310022, China.
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3
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Ramirez-Franco J, Debreux K, Extremet J, Maulet Y, Belghazi M, Villard C, Sangiardi M, Youssouf F, El Far L, Lévêque C, Debarnot C, Marchot P, Paneva S, Debanne D, Russier M, Seagar M, Irani SR, El Far O. Patient-derived antibodies reveal the subcellular distribution and heterogeneous interactome of LGI1. Brain 2022; 145:3843-3858. [PMID: 35727946 DOI: 10.1093/brain/awac218] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Revised: 06/08/2022] [Accepted: 06/10/2022] [Indexed: 11/14/2022] Open
Abstract
Autoantibodies against leucine-rich glioma-inactivated 1 (LGI1) occur in patients with encephalitis who present with frequent focal seizures and a pattern of amnesia consistent with focal hippocampal damage. To investigate whether the cellular and subcellular distribution of LGI1 may explain the localization of these features, and hence gain broader insights into LGI1's neurobiology, we analysed the detailed localization of LGI1 and the diversity of its protein interactome, in mouse brains using patient-derived recombinant monoclonal LGI1 antibodies. Combined immunofluorescence and mass spectrometry analyses showed that LGI1 is enriched in excitatory and inhibitory synaptic contact sites, most densely within CA3 regions of the hippocampus. LGI1 is secreted in both neuronal somatodendritic and axonal compartments, and occurs in oligodendrocytic, neuro-oligodendrocytic and astro-microglial protein complexes. Proteomic data support the presence of LGI1-Kv1-MAGUK complexes, but did not reveal LGI1 complexes with postsynaptic glutamate receptors. Our results extend our understanding of regional, cellular and subcellular LGI1 expression profiles and reveal novel LGI1-associated complexes, thus providing insights into the complex biology of LGI1 and its relationship to seizures and memory loss.
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Affiliation(s)
- Jorge Ramirez-Franco
- INSERM, Aix-Marseille Université (AMU), UMR 1072, Unité de Neurobiologie des canaux Ioniques et de la Synapse, 13015 Marseille, France
| | - Kévin Debreux
- INSERM, Aix-Marseille Université (AMU), UMR 1072, Unité de Neurobiologie des canaux Ioniques et de la Synapse, 13015 Marseille, France
| | - Johanna Extremet
- INSERM, Aix-Marseille Université (AMU), UMR 1072, Unité de Neurobiologie des canaux Ioniques et de la Synapse, 13015 Marseille, France
| | - Yves Maulet
- INSERM, Aix-Marseille Université (AMU), UMR 1072, Unité de Neurobiologie des canaux Ioniques et de la Synapse, 13015 Marseille, France
| | - Maya Belghazi
- Aix-Marseille University, CNRS, Institute of Neurophysiopathology (INP), PINT, PFNT, 13385 cedex 5 Marseille, France
| | - Claude Villard
- Aix-Marseille University, CNRS, Institute of Neurophysiopathology (INP), PINT, PFNT, 13385 cedex 5 Marseille, France
| | - Marion Sangiardi
- INSERM, Aix-Marseille Université (AMU), UMR 1072, Unité de Neurobiologie des canaux Ioniques et de la Synapse, 13015 Marseille, France
| | - Fahamoe Youssouf
- INSERM, Aix-Marseille Université (AMU), UMR 1072, Unité de Neurobiologie des canaux Ioniques et de la Synapse, 13015 Marseille, France
| | - Lara El Far
- INSERM, Aix-Marseille Université (AMU), UMR 1072, Unité de Neurobiologie des canaux Ioniques et de la Synapse, 13015 Marseille, France
| | - Christian Lévêque
- INSERM, Aix-Marseille Université (AMU), UMR 1072, Unité de Neurobiologie des canaux Ioniques et de la Synapse, 13015 Marseille, France
| | - Claire Debarnot
- Laboratoire 'Architecture et Fonction des Macromolécules Biologiques (AFMB)', CNRS, Aix-Marseille Université, 13288 cedex 09 Marseille, France
| | - Pascale Marchot
- Laboratoire 'Architecture et Fonction des Macromolécules Biologiques (AFMB)', CNRS, Aix-Marseille Université, 13288 cedex 09 Marseille, France
| | - Sofija Paneva
- Oxford Autoimmune Neurology Group, Nuffield Department of Clinical Neurosciences, John Radcliffe Hospital, University of Oxford, Oxford, UK
| | - Dominique Debanne
- INSERM, Aix-Marseille Université (AMU), UMR 1072, Unité de Neurobiologie des canaux Ioniques et de la Synapse, 13015 Marseille, France
| | - Michael Russier
- INSERM, Aix-Marseille Université (AMU), UMR 1072, Unité de Neurobiologie des canaux Ioniques et de la Synapse, 13015 Marseille, France
| | - Michael Seagar
- INSERM, Aix-Marseille Université (AMU), UMR 1072, Unité de Neurobiologie des canaux Ioniques et de la Synapse, 13015 Marseille, France
| | - Sarosh R Irani
- Oxford Autoimmune Neurology Group, Nuffield Department of Clinical Neurosciences, John Radcliffe Hospital, University of Oxford, Oxford, UK
- Department of Neurology, Oxford University Hospitals, Oxford, UK
| | - Oussama El Far
- INSERM, Aix-Marseille Université (AMU), UMR 1072, Unité de Neurobiologie des canaux Ioniques et de la Synapse, 13015 Marseille, France
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4
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Proteomic investigations of acute ischemic stroke in animal models: a narrative review. JOURNAL OF BIO-X RESEARCH 2022. [DOI: 10.1097/jbr.0000000000000134] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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5
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Romero-Morales AI, Robertson GL, Rastogi A, Rasmussen ML, Temuri H, McElroy GS, Chakrabarty RP, Hsu L, Almonacid PM, Millis BA, Chandel NS, Cartailler JP, Gama V. Human iPSC-derived cerebral organoids model features of Leigh syndrome and reveal abnormal corticogenesis. Development 2022; 149:275911. [PMID: 35792828 PMCID: PMC9357378 DOI: 10.1242/dev.199914] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2021] [Accepted: 05/18/2022] [Indexed: 01/12/2023]
Abstract
Leigh syndrome (LS) is a rare, inherited neurometabolic disorder that presents with bilateral brain lesions caused by defects in the mitochondrial respiratory chain and associated nuclear-encoded proteins. We generated human induced pluripotent stem cells (iPSCs) from three LS patient-derived fibroblast lines. Using whole-exome and mitochondrial sequencing, we identified unreported mutations in pyruvate dehydrogenase (GM0372, PDH; GM13411, MT-ATP6/PDH) and dihydrolipoyl dehydrogenase (GM01503, DLD). These LS patient-derived iPSC lines were viable and capable of differentiating into progenitor populations, but we identified several abnormalities in three-dimensional differentiation models of brain development. LS patient-derived cerebral organoids showed defects in neural epithelial bud generation, size and cortical architecture at 100 days. The double mutant MT-ATP6/PDH line produced organoid neural precursor cells with abnormal mitochondrial morphology, characterized by fragmentation and disorganization, and showed an increased generation of astrocytes. These studies aim to provide a comprehensive phenotypic characterization of available patient-derived cell lines that can be used to study Leigh syndrome.
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Affiliation(s)
| | - Gabriella L. Robertson
- Department of Cell and Developmental Biology, Vanderbilt University, Nashville, TN 37232, USA
| | - Anuj Rastogi
- Department of Cell and Developmental Biology, Vanderbilt University, Nashville, TN 37232, USA
| | - Megan L. Rasmussen
- Department of Cell and Developmental Biology, Vanderbilt University, Nashville, TN 37232, USA
| | - Hoor Temuri
- Department of Cell and Developmental Biology, Vanderbilt University, Nashville, TN 37232, USA
| | - Gregory Scott McElroy
- Feinberg School of Medicine, Department of Medicine, Division of Pulmonary and Critical Care Medicine, Northwestern University, Chicago, IL 60611, USA
| | - Ram Prosad Chakrabarty
- Feinberg School of Medicine, Department of Medicine, Division of Pulmonary and Critical Care Medicine, Northwestern University, Chicago, IL 60611, USA
| | - Lawrence Hsu
- Creative Data Solutions, Vanderbilt Center for Stem Cell Biology,Vanderbilt University,Nashville, TN 37232, USA
| | | | - Bryan A. Millis
- Department of Cell and Developmental Biology, Vanderbilt University, Nashville, TN 37232, USA,Vanderbilt Biophotonics Center,Vanderbilt University, Nashville, TN 37232, USA
| | - Navdeep S. Chandel
- Feinberg School of Medicine, Department of Medicine, Division of Pulmonary and Critical Care Medicine, Northwestern University, Chicago, IL 60611, USA,Feinberg School of Medicine, Department of Biochemistry and Molecular Genetics, Northwestern University, Chicago, IL 60611, USA
| | - Jean-Philippe Cartailler
- Creative Data Solutions, Vanderbilt Center for Stem Cell Biology,Vanderbilt University,Nashville, TN 37232, USA
| | - Vivian Gama
- Department of Cell and Developmental Biology, Vanderbilt University, Nashville, TN 37232, USA,Creative Data Solutions, Vanderbilt Center for Stem Cell Biology,Vanderbilt University,Nashville, TN 37232, USA,Vanderbilt Brain Institute,Vanderbilt University,Nashville, TN 37232, USA,Author for correspondence ()
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6
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Jiang W, Zhang P, Yang P, Kang N, Liu J, Aihemaiti Y, Tu H. Phosphoproteome Analysis Identifies a Synaptotagmin-1-Associated Complex Involved in Ischemic Neuron Injury. Mol Cell Proteomics 2022; 21:100222. [PMID: 35257887 PMCID: PMC9043414 DOI: 10.1016/j.mcpro.2022.100222] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2022] [Revised: 02/23/2022] [Accepted: 02/28/2022] [Indexed: 12/24/2022] Open
Abstract
Cerebral stroke is one of the leading causes of death in adults worldwide. However, the molecular mechanisms of stroke-induced neuron injury are not fully understood. Here, we obtained phosphoproteomic and proteomic profiles of the acute ischemic hippocampus by LC–MS/MS analysis. Quantitative phosphoproteomic analyses revealed that the dysregulated phosphoproteins were involved in synaptic components and neurotransmission. We further demonstrated that phosphorylation of Synaptotagmin-1 (Syt1) at the Thr112 site in cultured hippocampal neurons aggravated oxygen-glucose deprivation–induced neuronal injury. Immature neurons with low expression of Syt1 exhibit slight neuronal injury in a cerebral ischemia model. Administration of the Tat-Syt1T112A peptide protects neurons against cerebral ischemia-induced injury in vitro and in vivo. Surprisingly, potassium voltage-gated channel subfamily KQT member 2 (Kcnq2) interacted with Syt1 and Annexin A6 (Anxa6) and alleviated Syt1-mediated neuronal injury upon oxygen-glucose deprivation treatment. These results reveal a mechanism underlying neuronal injury and may provide new targets for neuroprotection after acute cerebral ischemia onset. Established the phosphoproteome profiles of acute cerebral ischemic hippocampus. Phosphoproteomic profile reveals phosphorylation of Syt1 and Kcnq2, which are upregulated. Phosphorylation of Syt1 aggravates neuron injury, which is relieved by Tat-Syt1T112A. Kcnq2 interacts with Syt1 and Anxa6 and alleviates Syt1-mediated neuronal injury.
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Affiliation(s)
- Wei Jiang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Biology, Hunan University, Changsha, Hunan, China; Shenzhen Research Institute, Hunan University, Shenzhen, Guangdong, China
| | - Pei Zhang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Biology, Hunan University, Changsha, Hunan, China; Shenzhen Research Institute, Hunan University, Shenzhen, Guangdong, China
| | - Peng Yang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Biology, Hunan University, Changsha, Hunan, China; Shenzhen Research Institute, Hunan University, Shenzhen, Guangdong, China
| | - Na Kang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Biology, Hunan University, Changsha, Hunan, China; Shenzhen Research Institute, Hunan University, Shenzhen, Guangdong, China
| | - Junqiang Liu
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Biology, Hunan University, Changsha, Hunan, China; Shenzhen Research Institute, Hunan University, Shenzhen, Guangdong, China
| | - Yilixiati Aihemaiti
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Biology, Hunan University, Changsha, Hunan, China; Shenzhen Research Institute, Hunan University, Shenzhen, Guangdong, China
| | - Haijun Tu
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Biology, Hunan University, Changsha, Hunan, China; Shenzhen Research Institute, Hunan University, Shenzhen, Guangdong, China.
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7
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Zhu D, Cao Z, Pang X, Jiang W, Li C, Zhang X, Tian X, Tu H, Wu P, Nie H. Derivation of Stem Cell-like Cells From Spherical Culture of Astrocytes for Enhanced Neural Repair After Middle Cerebral Artery Occlusion. Front Bioeng Biotechnol 2022; 10:875514. [PMID: 35445000 PMCID: PMC9013960 DOI: 10.3389/fbioe.2022.875514] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Accepted: 03/07/2022] [Indexed: 11/13/2022] Open
Abstract
Neural precursor cells (NPCs) tend to aggregate and develop into three-dimensional (3D) spheres, which in turn help maintain the stemness of the cells. This close relationship between spherical environments and cell stemness direct us to assume that 3D spheres of astrocytes (ASTs) may facilitate the acquisition of stem cell-like features and generate sufficient seed cells for the regeneration of neurons. In vitro results confirmed that mouse ASTs cultured on agarose surfaces spontaneously formed cell spheres and exhibited molecular features similar to stem cells, particularly capable of further differentiating into neurons and forming functional synaptic networks with synchronous burst activities. RNA-sequencing results revealed the similarity between AST-derived stem cells (A-iSCs) and NPCs in global gene expression profiles. The potency of A-iSCs in repairing neural injuries was evaluated in a mouse model of middle cerebral artery occlusion. It was observed that the transplanted A-iSCs expressed a series of markers related to neural differentiation, such as NeuN, Tuj1, and Map2, indicating the conversion of the transplanted A-iSCs into neurons in the scenario. We also found that the injured mice injected with A-iSCs exhibited significant improvements in sensorimotor functions after 8 weeks compared with the sham and control mice. Taken together, mouse ASTs form cell spheres on agarose surfaces and acquire stem cell-associated features; meanwhile, the derived A-iSCs possess the capacity to differentiate into neurons and facilitate the regeneration of damaged nerves.
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Affiliation(s)
- Dan Zhu
- Department of Biomedical Sciences, College of Biology, Hunan University, Changsha, China
| | - Zheming Cao
- Department of Orthopedics, Xiangya Hospital Central South University, Changsha, China
| | - Xiaoyang Pang
- Department of Orthopedics, Xiangya Hospital Central South University, Changsha, China
| | - Wei Jiang
- Department of Pharmaceutics, College of Biology, Hunan University, Changsha, China
| | - Chihao Li
- Department of Biomedical Sciences, College of Biology, Hunan University, Changsha, China
| | - Xing Zhang
- Department of Orthopedics, Xiangya Hospital Central South University, Changsha, China
| | - Xibin Tian
- Department of Pharmaceutics, College of Biology, Hunan University, Changsha, China
| | - Haijun Tu
- Department of Pharmaceutics, College of Biology, Hunan University, Changsha, China
- *Correspondence: Hemin Nie, ; Panfeng Wu, ; Haijun Tu,
| | - Panfeng Wu
- Department of Orthopedics, Xiangya Hospital Central South University, Changsha, China
- *Correspondence: Hemin Nie, ; Panfeng Wu, ; Haijun Tu,
| | - Hemin Nie
- Department of Biomedical Sciences, College of Biology, Hunan University, Changsha, China
- *Correspondence: Hemin Nie, ; Panfeng Wu, ; Haijun Tu,
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8
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Jiang W, Stingelin L, Zhang P, Tian X, Kang N, Liu J, Aihemaiti Y, Zhou D, Tu H. Enolase2 and enolase1 cooperate against neuronal injury in stroke model. Neurosci Lett 2021; 747:135662. [PMID: 33484738 DOI: 10.1016/j.neulet.2021.135662] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Revised: 12/30/2020] [Accepted: 01/13/2021] [Indexed: 12/12/2022]
Abstract
Stroke is one of the leading causes of death in adults worldwide. However, the mechanism causing neuronal death remains poorly understood. Our previous report showed that enolase1 (ENO1), a key glycolytic enzyme, alleviates cerebral ischemia-induced neuronal injury. It remained unclear whether enolase2 (ENO2) affects neuronal injury in stroke models. Here, we examined the effects of ENO2 in several stroke models. The results showed that the expression level of ENO2 was downregulated after 3 h of cerebral ischemia by middle cerebral artery occlusion (MCAO) in the mouse model. ENO2 was expressed in mouse brain and cultured hippocampus neurons. Overexpression of ENO2 in cultured hippocampus neurons did not affect neuronal injury in our oxygen-glucose deprivation (OGD) model. Interestingly, double knock-down (KD) of ENO1 and ENO2 increased neuronal injury while either KD of ENO1 or ENO2 failed to increase neuronal injury in OGD. Deletion of ENO1 did not affect anoxia-starvation (AS)-induced worm death in C. elegans. These findings demonstrated that ENO2 and ENO1 work together against neuronal injury in these stroke models.
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Affiliation(s)
- Wei Jiang
- Institute of Neuroscience, State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Biology, Hunan University, Changsha, Hunan, 410082, China
| | - Lukas Stingelin
- Institute of Neuroscience, State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Biology, Hunan University, Changsha, Hunan, 410082, China
| | - Pei Zhang
- Institute of Neuroscience, State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Biology, Hunan University, Changsha, Hunan, 410082, China
| | - Xibin Tian
- Institute of Neuroscience, State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Biology, Hunan University, Changsha, Hunan, 410082, China
| | - Na Kang
- Institute of Neuroscience, State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Biology, Hunan University, Changsha, Hunan, 410082, China
| | - Junqiang Liu
- Institute of Neuroscience, State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Biology, Hunan University, Changsha, Hunan, 410082, China
| | - Yilixiati Aihemaiti
- Institute of Neuroscience, State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Biology, Hunan University, Changsha, Hunan, 410082, China
| | - Desheng Zhou
- Department of Neurology, First Affiliated Hospital of Hunan University of Chinese Medicine, Changsha, Hunan, 410007, China.
| | - Haijun Tu
- Institute of Neuroscience, State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Biology, Hunan University, Changsha, Hunan, 410082, China.
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