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Chai Z, Zheng J, Shen J. Mechanism of ferroptosis regulating ischemic stroke and pharmacologically inhibiting ferroptosis in treatment of ischemic stroke. CNS Neurosci Ther 2024; 30:e14865. [PMID: 39042604 PMCID: PMC11265528 DOI: 10.1111/cns.14865] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2024] [Revised: 06/27/2024] [Accepted: 07/05/2024] [Indexed: 07/25/2024] Open
Abstract
Ferroptosis is a newly discovered form of programmed cell death that is non-caspase-dependent and is characterized by the production of lethal levels of iron-dependent lipid reactive oxygen species (ROS). In recent years, ferroptosis has attracted great interest in the field of cerebral infarction because it differs morphologically, physiologically, and genetically from other forms of cell death such as necrosis, apoptosis, autophagy, and pyroptosis. In addition, ROS is considered to be an important prognostic factor for ischemic stroke, making it a promising target for stroke treatment. This paper summarizes the induction and defense mechanisms associated with ferroptosis, and explores potential treatment strategies for ischemic stroke in order to lay the groundwork for the development of new neuroprotective drugs.
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Affiliation(s)
- Zhaohui Chai
- Department of NeurosurgeryFirst Affiliated Hospital, College of Medicine, Zhejiang UniversityHangzhou CityChina
| | - Jiesheng Zheng
- Department of NeurosurgeryFirst Affiliated Hospital, College of Medicine, Zhejiang UniversityHangzhou CityChina
| | - Jian Shen
- Department of NeurosurgeryFirst Affiliated Hospital, College of Medicine, Zhejiang UniversityHangzhou CityChina
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Stanne TM, Gonzalez-Ortiz F, Brännmark C, Jood K, Karikari T, Blennow K, Jern C. Association of Plasma Brain-Derived Tau With Functional Outcome After Ischemic Stroke. Neurology 2024; 102:e209129. [PMID: 38545929 PMCID: PMC10962917 DOI: 10.1212/wnl.0000000000209129] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Accepted: 11/16/2023] [Indexed: 04/10/2024] Open
Abstract
OBJECTIVES To investigate whether circulating acute-phase brain-derived tau (BD-tau) is associated with functional outcome after ischemic stroke. METHODS Plasma tau was measured by a novel assay that selectively quantifies BD-tau in the Sahlgrenska Academy Study on Ischemic Stroke (SAHLSIS), which includes adult cases with ischemic stroke and controls younger than 70 years, and in an independent cohort of adult cases of all ages (SAHLSIS2). Associations with unfavorable 3-month functional outcome (modified Rankin scale score >2) were analyzed by logistic regression. Various stratified and sensitivity analyses were performed, for example, by age, stroke severity, recanalization therapy, and etiologic subtype. RESULTS This study included 454 and 364 cases from the SAHLSIS and SAHLSIS2, with a median age of 58 and 68 years, respectively. Higher acute BD-tau concentrations were significantly associated with increased odds of unfavorable outcome after adjustment for age, sex, day of blood draw, and stroke severity (NIH stroke scale score) in both cohorts (OR per doubling of BD-tau: 2.9 [95% CI 2.2-3.7], P = 1 × 10-15 and 1.8 [1.5-2.2], P = 7 × 10-9, respectively). The association was consistent in the different stratified and sensitivity analyses. DISCUSSION BD-tau is a promising blood-based biomarker of ischemic stroke outcomes, and future studies in larger cohorts are warranted.
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Affiliation(s)
- Tara M Stanne
- From the Department of Laboratory Medicine (T.M.S., C.B., C.J.), Institute of Biomedicine, Sahlgrenska Academy, University of Gothenburg; Department of Clinical Genetics and Genomics (T.M.S., C.J.), Region Västra Götaland, Sahlgrenska University Hospital; Department of Psychiatry and Neurochemistry (F.G.-O., T.K., K.B.), Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg; Clinical Neurochemistry Laboratory (F.G.-O., K.B.); Department of Research, Development, Education and Innovation (C.B.), Region Västra Götaland, Sahlgrenska University Hospital; Department of Clinical Neuroscience (K.J.), Institute of Neuroscience and Physiology, the Sahlgrenska Academy, University of Gothenburg; Department of Neurology (K.J.), Region Västra Götaland, Sahlgrenska University Hospital, Gothenburg, Sweden; and Department of Psychiatry (T.K.), University of Pittsburgh
| | - Fernando Gonzalez-Ortiz
- From the Department of Laboratory Medicine (T.M.S., C.B., C.J.), Institute of Biomedicine, Sahlgrenska Academy, University of Gothenburg; Department of Clinical Genetics and Genomics (T.M.S., C.J.), Region Västra Götaland, Sahlgrenska University Hospital; Department of Psychiatry and Neurochemistry (F.G.-O., T.K., K.B.), Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg; Clinical Neurochemistry Laboratory (F.G.-O., K.B.); Department of Research, Development, Education and Innovation (C.B.), Region Västra Götaland, Sahlgrenska University Hospital; Department of Clinical Neuroscience (K.J.), Institute of Neuroscience and Physiology, the Sahlgrenska Academy, University of Gothenburg; Department of Neurology (K.J.), Region Västra Götaland, Sahlgrenska University Hospital, Gothenburg, Sweden; and Department of Psychiatry (T.K.), University of Pittsburgh
| | - Cecilia Brännmark
- From the Department of Laboratory Medicine (T.M.S., C.B., C.J.), Institute of Biomedicine, Sahlgrenska Academy, University of Gothenburg; Department of Clinical Genetics and Genomics (T.M.S., C.J.), Region Västra Götaland, Sahlgrenska University Hospital; Department of Psychiatry and Neurochemistry (F.G.-O., T.K., K.B.), Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg; Clinical Neurochemistry Laboratory (F.G.-O., K.B.); Department of Research, Development, Education and Innovation (C.B.), Region Västra Götaland, Sahlgrenska University Hospital; Department of Clinical Neuroscience (K.J.), Institute of Neuroscience and Physiology, the Sahlgrenska Academy, University of Gothenburg; Department of Neurology (K.J.), Region Västra Götaland, Sahlgrenska University Hospital, Gothenburg, Sweden; and Department of Psychiatry (T.K.), University of Pittsburgh
| | - Katarina Jood
- From the Department of Laboratory Medicine (T.M.S., C.B., C.J.), Institute of Biomedicine, Sahlgrenska Academy, University of Gothenburg; Department of Clinical Genetics and Genomics (T.M.S., C.J.), Region Västra Götaland, Sahlgrenska University Hospital; Department of Psychiatry and Neurochemistry (F.G.-O., T.K., K.B.), Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg; Clinical Neurochemistry Laboratory (F.G.-O., K.B.); Department of Research, Development, Education and Innovation (C.B.), Region Västra Götaland, Sahlgrenska University Hospital; Department of Clinical Neuroscience (K.J.), Institute of Neuroscience and Physiology, the Sahlgrenska Academy, University of Gothenburg; Department of Neurology (K.J.), Region Västra Götaland, Sahlgrenska University Hospital, Gothenburg, Sweden; and Department of Psychiatry (T.K.), University of Pittsburgh
| | - Thomas Karikari
- From the Department of Laboratory Medicine (T.M.S., C.B., C.J.), Institute of Biomedicine, Sahlgrenska Academy, University of Gothenburg; Department of Clinical Genetics and Genomics (T.M.S., C.J.), Region Västra Götaland, Sahlgrenska University Hospital; Department of Psychiatry and Neurochemistry (F.G.-O., T.K., K.B.), Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg; Clinical Neurochemistry Laboratory (F.G.-O., K.B.); Department of Research, Development, Education and Innovation (C.B.), Region Västra Götaland, Sahlgrenska University Hospital; Department of Clinical Neuroscience (K.J.), Institute of Neuroscience and Physiology, the Sahlgrenska Academy, University of Gothenburg; Department of Neurology (K.J.), Region Västra Götaland, Sahlgrenska University Hospital, Gothenburg, Sweden; and Department of Psychiatry (T.K.), University of Pittsburgh
| | - Kaj Blennow
- From the Department of Laboratory Medicine (T.M.S., C.B., C.J.), Institute of Biomedicine, Sahlgrenska Academy, University of Gothenburg; Department of Clinical Genetics and Genomics (T.M.S., C.J.), Region Västra Götaland, Sahlgrenska University Hospital; Department of Psychiatry and Neurochemistry (F.G.-O., T.K., K.B.), Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg; Clinical Neurochemistry Laboratory (F.G.-O., K.B.); Department of Research, Development, Education and Innovation (C.B.), Region Västra Götaland, Sahlgrenska University Hospital; Department of Clinical Neuroscience (K.J.), Institute of Neuroscience and Physiology, the Sahlgrenska Academy, University of Gothenburg; Department of Neurology (K.J.), Region Västra Götaland, Sahlgrenska University Hospital, Gothenburg, Sweden; and Department of Psychiatry (T.K.), University of Pittsburgh
| | - Christina Jern
- From the Department of Laboratory Medicine (T.M.S., C.B., C.J.), Institute of Biomedicine, Sahlgrenska Academy, University of Gothenburg; Department of Clinical Genetics and Genomics (T.M.S., C.J.), Region Västra Götaland, Sahlgrenska University Hospital; Department of Psychiatry and Neurochemistry (F.G.-O., T.K., K.B.), Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg; Clinical Neurochemistry Laboratory (F.G.-O., K.B.); Department of Research, Development, Education and Innovation (C.B.), Region Västra Götaland, Sahlgrenska University Hospital; Department of Clinical Neuroscience (K.J.), Institute of Neuroscience and Physiology, the Sahlgrenska Academy, University of Gothenburg; Department of Neurology (K.J.), Region Västra Götaland, Sahlgrenska University Hospital, Gothenburg, Sweden; and Department of Psychiatry (T.K.), University of Pittsburgh
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Cayir S, Sadabad FE, Mecca A, Matuskey D, Zadeh AF. The Relationship of Cerebrospinal Fluid Biomarkers and Cognitive Performance in Frontotemporal Dementia. RESEARCH SQUARE 2024:rs.3.rs-3945509. [PMID: 38410483 PMCID: PMC10896374 DOI: 10.21203/rs.3.rs-3945509/v2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/28/2024]
Abstract
Objective Currently available literature on the relationships between cerebrospinal fluid (CSF) biomarkers and cognitive performance in frontotemporal dementia (FTD) is very limited and inconclusive. In this study, we investigated the association of cognition, as measured with Montreal Cognitive Assessment (MoCA), with CSF levels of total tau (t-tau), phosphorylated tau at threonine 181 (p-tau181), and amyloid β 1-42 (Aβ1-42) in a group of patients with FTD and Alzheimer's disease (AD). Methods We conducted a retrospective cohort study with participants selected from the electronic records of patients seen at Yale New Haven Hospital's Memory Clinic, CT, USA. We included 61 patients, 28 with FTD (mean age=64.1) and 33 with AD (mean age=66.8). Results T-tau levels negatively and significantly correlated with total MoCA scores as well as the different MoCA index scores in both the FTD (r=-0.469, p<0.05) and AD (r=-0.545, p<0.01) groups. There were no significant associations with MoCA scores and p-tau181 levels in patients with FTD (r=-0.224, p>0.05), unlike patients with AD, who exhibited significant correlations (r=-0.549, p<0.01). Also, Aβ1-42 levels were not significantly correlated with MoCA scores in either of the FTD and AD groups. Conclusion CSF concentrations of t-tau are inversely correlated to cognitive performance in patients with FTD and both t-tau and p-tau181 in AD. These findings provide valuable insights into the relationship between clinical cognitive performance and tau-related pathology in FTD.
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Affiliation(s)
- Salih Cayir
- Yale University Radiology and Biomedical Imaging
| | | | - Adam Mecca
- Yale University School of Medicine, Alzheimer's Disease Research Unit
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Vera-González A, Cardozo CF, Araque EV, Cruz MJ, Arango-Davila CA, Rengifo-Gómez J. A Brain Ischemia-Reperfusion Model for the Study of Tau Phosphorylation and O-GlcNAcylation. Methods Mol Biol 2024; 2754:581-600. [PMID: 38512691 DOI: 10.1007/978-1-0716-3629-9_34] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/23/2024]
Abstract
Cerebral ischemia produces a decrease, loss, or instability of the assembly processes in the neuronal cytoskeleton, related to the alteration in the normal processes of phosphorylation of the Tau protein, triggering its hyperphosphorylation and altering the normal processes of formation of neuronal microtubules. Here we describe the methods used to study the impact of middle cerebral artery occlusion (MCAo) on neurological functions and Tau phosphorylation in Wistar rat brain.
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Affiliation(s)
| | - Carlos F Cardozo
- Escuela de Ciencias Básicas - Facultad de Salud, Universidad del Valle, Cali, Colombia
- Departamento de Ciencias Biológicas, Universidad Icesi, Cali, Colombia
| | | | - María Juliana Cruz
- Departamento de Ciencias Biológicas, Universidad Icesi, Cali, Colombia
- Tecnoquímicas S.A. - División Médico Científica, Cali, Colombia
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Wang X, Zhu X, Huang G, Wu L, Meng Z, Wu Y. Knockout of PERK protects rat Müller glial cells against OGD-induced endoplasmic reticulum stress-related apoptosis. BMC Ophthalmol 2023; 23:286. [PMID: 37353739 DOI: 10.1186/s12886-023-03022-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Accepted: 06/06/2023] [Indexed: 06/25/2023] Open
Abstract
BACKGROUND The pathological basis for many retinal diseases, retinal ischemia is also one of the most common causes of visual impairment. Numerous ocular diseases have been linked to Endoplasmic reticulum(ER)stress. However, there is still no clear understanding of the relationship between ER stress and Müller glial cells during retinal ischemia and hypoxia. This study examined the effects of ER stress on autophagy and apoptosis-related proteins, as well as the microtubule-related protein tau in rMC-1 cells. METHODS rMC-1 cells were cultured in vitro. RT-PCR、immunofluorescence and Western blotting revealed the expression levels of associated mRNAs and proteins, and the CCK-8 and flow cytometry assays detected cell apoptosis. RESULTS The results showed that under OGD(Oxygen-glucose deprivation) conditions, the number of rMC-1 cells was decreased, the PERK/eIF2a pathway was activated, and the expressions of p-tau, LC3、Beclin1 and Caspase-12 proteins were increased. After the PERK knockout, the expression of the above proteins was decreased, and the apoptosis was also decreased. CONCLUSION According to the findings of this study, specific downregulation of PERK expression had an anti-apoptotic effect on OGD-conditioned rMC-1 cells. There is a possibility that this is one of the mechanisms of MG cell apoptosis during retinal ischemic injury.
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Affiliation(s)
- Xiaorui Wang
- Department of Ophthalmology, Second Affiliated Hospital of Fujian Medical University, No.950, Donghai Street, Quanzhou, 362000, Fujian Province, China
| | - Xinxing Zhu
- Department of Ophthalmology, Second Affiliated Hospital of Fujian Medical University, No.950, Donghai Street, Quanzhou, 362000, Fujian Province, China
| | - Guangqian Huang
- Department of Ophthalmology, Second Affiliated Hospital of Fujian Medical University, No.950, Donghai Street, Quanzhou, 362000, Fujian Province, China
| | - Lili Wu
- Department of Ophthalmology, Second Affiliated Hospital of Fujian Medical University, No.950, Donghai Street, Quanzhou, 362000, Fujian Province, China
| | - Zhiyong Meng
- Department of Ophthalmology, Second Affiliated Hospital of Fujian Medical University, No.950, Donghai Street, Quanzhou, 362000, Fujian Province, China
| | - Yuyu Wu
- Department of Ophthalmology, Second Affiliated Hospital of Fujian Medical University, No.950, Donghai Street, Quanzhou, 362000, Fujian Province, China.
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Huang Y, Wang Z, Huang ZX, Liu Z. Biomarkers and the outcomes of ischemic stroke. Front Mol Neurosci 2023; 16:1171101. [PMID: 37342100 PMCID: PMC10277488 DOI: 10.3389/fnmol.2023.1171101] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Accepted: 05/16/2023] [Indexed: 06/22/2023] Open
Abstract
Biomarkers are measurable substances that could be used as objective indicators for disease diagnosis, responses to treatments, and outcomes predictions. In this review, we summarized the data on a number of important biomarkers including glutamate, S100B, glial fibrillary acidic protein, receptor for advanced glycation end-products, intercellular adhesion molecule-1, von willebrand factor, matrix metalloproteinase-9, interleukin-6, tumor necrosis factor-a, activated protein C, copeptin, neuron-specific enolase, tau protein, gamma aminobutyric acid, blood glucose, endothelial progenitor cells, and circulating CD34-positive cells that could be potentially used to indicate the disease burden and/or predict clinical outcome of ischemic stroke. We examined the relationship between specific biomarkers and disease burden and outcomes and discussed the potential mechanisms underlying the relationship. The clinical significance and implications of these biomarkers were also discussed.
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Affiliation(s)
- Ying Huang
- Department of Neurology, Guangdong Second Provincial General Hospital, Guangzhou, Guangdong, China
| | - Zhenzhen Wang
- Department of Neurology, Guangdong Second Provincial General Hospital, Guangzhou, Guangdong, China
| | - Zhi-Xin Huang
- Department of Neurology, Guangdong Second Provincial General Hospital, Guangzhou, Guangdong, China
| | - Zhenguo Liu
- Center for Precision Medicine and Division of Cardiovascular Medicine, Department of Medicine, University of Missouri School of Medicine, Columbia, MO, United States
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Mehta SL, Kim T, Chelluboina B, Vemuganti R. Tau and GSK-3β are Critical Contributors to α-Synuclein-Mediated Post-Stroke Brain Damage. Neuromolecular Med 2023; 25:94-101. [PMID: 36447045 PMCID: PMC10249510 DOI: 10.1007/s12017-022-08731-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Accepted: 11/13/2022] [Indexed: 12/03/2022]
Abstract
Post-stroke secondary brain damage is significantly influenced by the induction and accumulation of α-Synuclein (α-Syn). α-Syn-positive inclusions are often present in tauopathies and elevated tau levels and phosphorylation promotes neurodegeneration. Glycogen synthase kinase 3β (GSK-3β) is a known promoter of tau phosphorylation. We currently evaluated the interaction of α-Syn with GSK-3β and tau in post-ischemic mouse brain. Transient focal ischemia led to increased cerebral protein-protein interaction of α-Syn with both GSK-3β and tau and elevated tau phosphorylation. Treatment with a GSK-3β inhibitor prevented post-ischemic tau phosphorylation. Furthermore, α-Syn interaction was observed to be crucial for post-ischemic GSK-3β-dependent tau hyperphosphorylation as it was not seen in α-Syn knockout mice. Moreover, tau knockout mice show significantly smaller brain damage after transient focal ischemia. Overall, the present study indicates that GSK-3β catalyzes the α-Syn-dependent tau phosphorylation and preventing this interaction is crucial to limit post-ischemic secondary brain damage.
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Affiliation(s)
- Suresh L Mehta
- Department of Neurological Surgery, University of Wisconsin-Madison, Mail Code CSC-8660, 600 Highland Ave, Madison, WI, 53792, USA
| | - TaeHee Kim
- Department of Neurological Surgery, University of Wisconsin-Madison, Mail Code CSC-8660, 600 Highland Ave, Madison, WI, 53792, USA
| | - Bharath Chelluboina
- Department of Neurological Surgery, University of Wisconsin-Madison, Mail Code CSC-8660, 600 Highland Ave, Madison, WI, 53792, USA
| | - Raghu Vemuganti
- Department of Neurological Surgery, University of Wisconsin-Madison, Mail Code CSC-8660, 600 Highland Ave, Madison, WI, 53792, USA.
- William S. Middleton Veterans Administration Hospital, Madison, WI, USA.
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Parvatikar PP, Patil SM, Patil BS, Reddy RC, Bagoji I, Kotennavar MS, Patil S, Patil AV, Das KK, Das SN, Bagali S. Effect of Mucuna pruriens on brain NMDA receptor and tau protein gene expression in cerebral ischemic rats. Front Physiol 2023; 14:1092032. [PMID: 36875022 PMCID: PMC9978338 DOI: 10.3389/fphys.2023.1092032] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Accepted: 02/06/2023] [Indexed: 02/18/2023] Open
Abstract
Present study aimed to assess effect of pre-treatment with Mucuna pruriens seed extract and its bioactive molecule(s) on NMDAR and Tau protein gene expression in cerebral ischemic rodent model. Methanol extract of M. pruriens seeds was characterized by HPLC, and β-sitosterol was isolated by flash chromatography. In vivo studies to observe the effect of pre-treatment (28 days) with methanol extract of M. pruriens seed and β-sitosterol on the unilateral cerebral ischemic rat model. Cerebral ischemia induced by left common carotid artery occlusion (LCCAO) for 75 min (on day 29) followed by reperfusion for 12 h. Rats (n = 48) divided into four groups. GroupI (control,Untreated + LCCAO)-No pre-treatment + cerebral ischemia; GroupII(β-sitosterol + Sham)-pre-treatment with β-sitosterol, 10 mg/kg/day + sham-operated; GroupIII(β-sitosterol + LCCAO)-pre-treatment with β-sitosterol, 10 mg/kg/day + cerebral ischemia; GroupIV(methanol extract + LCCAO)-pre-treatment with methanol extract of M. pruriens seeds, 50 mg/kg/day + cerebral ischemia. Neurological deficit score was assessed just before sacrifice. Experimental animals were sacrificed after 12 h reperfusion. Brain histopathology was performed. Gene expression of NMDAR and Tau protein of left cerebral hemisphere (occluded side) was performed by RT-PCR. Results revealed that the neurological deficit score was lower in groups III and IV compared to group I. NMDAR and tau protein mRNA expression in left cerebral hemisphere were upregulated in Group I, downregulated in groups III and IV. Histopathology of left cerebral hemisphere (occluded side) in Group I showed features of ischemic brain damage. Groups III and IV, left cerebral hemisphere showed less ischemic damage compared GroupI. Right cerebral hemisphere showed no areas of ischemia-induced brain changes. Pre-treatment with β-sitosterol and methanol extract of M. pruriens seeds may reduce ischemic brain injury following unilateral common carotid artery occlusion in rats.
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Affiliation(s)
- Prachi P Parvatikar
- Laboratory of Vascular Physiology and Medicine, Department of Physiology, Shri B. M. Patil Medical College, Hospital & Research Centre, BLDE (Deemed to be University), Vijayapura, Karnataka, India
| | - S M Patil
- Laboratory of Vascular Physiology and Medicine, Department of Physiology, Shri B. M. Patil Medical College, Hospital & Research Centre, BLDE (Deemed to be University), Vijayapura, Karnataka, India
| | - Bheemshetty S Patil
- Department of Anatomy, Shri B. M. Patil Medical College, Hospital & Research Center, BLDE (Deemed to be University), Vijayapura, Karnataka, India
| | - R Chandramouli Reddy
- Department of Biochemistry, Shri B. M. Patil Medical College, Hospital & Research Center, BLDE (Deemed to be University), Vijayapura, Karnataka, India
| | - Ishwar Bagoji
- Department of Anatomy, Shri B. M. Patil Medical College, Hospital & Research Center, BLDE (Deemed to be University), Vijayapura, Karnataka, India
| | - Manjunath S Kotennavar
- Department of Surgery, Shri B. M. Patil Medical College, Hospital & Research Center, BLDE (Deemed to be University), Vijayapura, Karnataka, India
| | - Sumangala Patil
- Laboratory of Vascular Physiology and Medicine, Department of Physiology, Shri B. M. Patil Medical College, Hospital & Research Centre, BLDE (Deemed to be University), Vijayapura, Karnataka, India
| | - Aravind V Patil
- Department of Surgery, Shri B. M. Patil Medical College, Hospital & Research Center, BLDE (Deemed to be University), Vijayapura, Karnataka, India
| | - Kusal K Das
- Laboratory of Vascular Physiology and Medicine, Department of Physiology, Shri B. M. Patil Medical College, Hospital & Research Centre, BLDE (Deemed to be University), Vijayapura, Karnataka, India
| | - Swastika N Das
- Department of Chemistry, BLDEA's V P Dr PG Halakatti College of Engineering and Technology, Vijayapura, Karnataka, India
| | - Shrilaxmi Bagali
- Laboratory of Vascular Physiology and Medicine, Department of Physiology, Shri B. M. Patil Medical College, Hospital & Research Centre, BLDE (Deemed to be University), Vijayapura, Karnataka, India
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Park HJ, Choi JH, Nam MH, Seo YK. Induced Neurodifferentiation of hBM-MSCs through Activation of the ERK/CREB Pathway via Pulsed Electromagnetic Fields and Physical Stimulation Promotes Neurogenesis in Cerebral Ischemic Models. Int J Mol Sci 2022; 23:ijms23031177. [PMID: 35163096 PMCID: PMC8835447 DOI: 10.3390/ijms23031177] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Revised: 01/14/2022] [Accepted: 01/19/2022] [Indexed: 12/22/2022] Open
Abstract
Stroke is among the leading causes of death worldwide, and stroke patients are more likely to live with permanent disabilities even after treatment. Several treatments are being developed to improve the quality of life of patients; however, these treatments still have important limitations. Our study thus sought to evaluate the neural differentiation of human bone marrow mesenchymal stem cells (hBM-MSCs) at various pulsed electromagnetic field (PEMF) frequencies. Furthermore, the effects of selected frequencies in vivo were also evaluated using a mouse ischemia stroke model. Cell proliferation decreased by 20% in the PEMF group, as demonstrated by the 3-[4,5-dimethylthiazol-2-yl]-2,5-diphenyl tetrazolium bromide (MTT) assay, and lactate dehydrogenase (LDH) secretion increased by approximately 10% in an LDH release assay. Fluorescence-activated cell sorting (FACS) analysis demonstrated that CD73 and CD105 were downregulated in the PEMF group at 60 Hz. Moreover, microtubule-associated protein 2 (MAP-2) and neurofilament light chain (NF-L) were upregulated in cell cultures at 60 and 75 Hz. To assess the effects of PEMF in vivo, cerebral ischemia mice were exposed to a PEMF at 60 Hz. Neural-related proteins were significantly upregulated in the PEMF groups compared with the control and cell group. Upon conducting rotarod tests, the cell/PEMF group exhibited significant differences in motor coordination at 13 days post-treatment when compared with the control and stem-cell-treated group. Furthermore, the cell and cell/PEMF group exhibited a significant reduction in the expression of matrix metalloproteinase-9 (MMP-9), tumor necrosis factor-alpha (TNF-α) and interferon-gamma (IFN-γ) in the induced ischemic area compared with the control. Collectively, our findings demonstrated that PEMFs at 60 and 75 Hz could stimulate hBM-MSCs neural differentiation in vitro, in addition to promoting neurogenesis to enhance the functional recovery process by reducing the post-stroke inflammatory reaction.
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Affiliation(s)
| | | | | | - Young-Kwon Seo
- Correspondence: ; Tel.: +82-(31)-9615154; Fax: +82-(31)-9615521
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Huang KL, Hsiao IT, Chang TY, Yang SY, Chang YJ, Wu HC, Liu CH, Wu YM, Lin KJ, Ho MY, Lee TH. Neurodegeneration and Vascular Burden on Cognition After Midlife: A Plasma and Neuroimaging Biomarker Study. Front Hum Neurosci 2022; 15:735063. [PMID: 34970128 PMCID: PMC8712753 DOI: 10.3389/fnhum.2021.735063] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Accepted: 11/19/2021] [Indexed: 11/13/2022] Open
Abstract
Background and Objectives: Neurodegeneration and vascular burden are the two most common causes of post-stroke cognitive impairment. However, the interrelationship between the plasma beta-amyloid (Aβ) and tau protein, cortical atrophy and brain amyloid accumulation on PET imaging in stroke patients is undetermined. We aimed to explore: (1) the relationships of cortical thickness and amyloid burden on PET with plasma Aβ40, Aβ42, tau protein and their composite scores in stroke patients; and (2) the associations of post-stroke cognitive presentations with these plasma and neuroimaging biomarkers. Methods: The prospective project recruited first-ever ischemic stroke patients around 3 months after stroke onset. The plasma Aβ40, Aβ42, and total tau protein were measured with the immunomagnetic reduction method. Cortical thickness was evaluated on MRI, and cortical amyloid plaque deposition was evaluated by 18F-florbetapir PET. Cognition was evaluated with Mini-Mental State Examination (MMSE), Geriatric Depression Scale (GDS), Dementia Rating Scale-2 (DRS-2). Results: The study recruited 24 stroke patients and 13 normal controls. The plasma tau and tau*Aβ42 levels were correlated with mean cortical thickness after age adjustment. The Aβ42/Aβ40 ratio was correlated with global cortical 18F-florbetapir uptake value. The DRS-2 and GDS scores were associated with mean cortical thickness and plasma biomarkers, including Aβ42/Aβ40, tau, tau*Aβ42, tau/Aβ42, and tau/Aβ40 levels, in stroke patients. Conclusion: Plasma Aβ, tau, and their composite scores were associated with cognitive performance 3 months after stroke, and these plasma biomarkers were correlated with corresponding imaging biomarkers of neurodegeneration. Further longitudinal studies with a larger sample size are warranted to replicate the study results.
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Affiliation(s)
- Kuo-Lun Huang
- Department of Neurology, Linkou Chang Gung Memorial Hospital, and College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Ing-Tsung Hsiao
- Department of Nuclear Medicine and Molecular Imaging Center, Linkou Chang Gung Memorial Hospital, Taoyuan, Taiwan.,Healthy Aging Research Center and Department of Medical Imaging and Radiological Sciences, College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Ting-Yu Chang
- Department of Neurology, Linkou Chang Gung Memorial Hospital, and College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | | | - Yeu-Jhy Chang
- Department of Neurology, Linkou Chang Gung Memorial Hospital, and College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Hsiu-Chuan Wu
- Department of Neurology, Linkou Chang Gung Memorial Hospital, and College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Chi-Hung Liu
- Department of Neurology, Linkou Chang Gung Memorial Hospital, and College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Yi-Ming Wu
- Department of Radiology, Linkou Chang Gung Memorial Hospital, Taoyuan, Taiwan
| | - Kun-Ju Lin
- Department of Nuclear Medicine and Molecular Imaging Center, Linkou Chang Gung Memorial Hospital, Taoyuan, Taiwan.,Healthy Aging Research Center and Department of Medical Imaging and Radiological Sciences, College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Meng-Yang Ho
- Department of Neurology, Linkou Chang Gung Memorial Hospital, and College of Medicine, Chang Gung University, Taoyuan, Taiwan.,Graduate Institute of Behavioral Sciences, Chang Gung University, Taoyuan, Taiwan
| | - Tsong-Hai Lee
- Department of Neurology, Linkou Chang Gung Memorial Hospital, and College of Medicine, Chang Gung University, Taoyuan, Taiwan
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11
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Zhang T, Chen X, Qu Y, Ding Y. Curcumin Alleviates Oxygen-Glucose-Deprivation/Reperfusion-Induced Oxidative Damage by Regulating miR-1287-5p/LONP2 Axis in SH-SY5Y Cells. Anal Cell Pathol (Amst) 2021; 2021:5548706. [PMID: 34589382 PMCID: PMC8476263 DOI: 10.1155/2021/5548706] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2021] [Revised: 07/30/2021] [Accepted: 08/07/2021] [Indexed: 02/07/2023] Open
Abstract
Oxidative stress-induced neuronal damage is a main cause of ischemia/reperfusion injury. Curcumin (Cur), the principal constituent extracted from dried rhizomes of Curcuma longa L. (turmeric), exhibits excellent antioxidant effects. Previous studies have indicated that miR-1287-5p was downregulated in patients with ischemic stroke. Additionally, we predicted that Lon Peptidase 2, Peroxisomal (LONP2), which is involved in oxidative stress regulation, is targeted by miR-1287-5p. The aim of the current study is to investigate the effect of Cur on ischemia/reperfusion damage and its underlying mechanism. To mimic ischemia/reperfusion damage environment, SH-SY5Y cells were subjected to oxygen-glucose-deprivation/reperfusion (OGD/R). OGD/R treatment downregulated miR-1287-5p and upregulated LONP2 in SH-SY5Y cells, but Cur alleviated OGD/R-induced oxidative damage and reversed the effect of OGD/R on the expression of miR-1287-5p and LONP2. Furthermore, we confirmed the interactive relationship between miR-1287-5p and LONP2 (negative regulation). We revealed that miR-1287-5p overexpression alleviated OGD/R-induced oxidative damage alleviation, similar to the effect of Cur. MiR-1287-5p inhibition accentuated OGD/R-induced oxidative damage in SH-SY5Y cells, which was reversed by Cur. The expression of LONP2 in OGD/R-treated SH-SY5Y cells was decreased by miR-1287-5p overexpression and increased by miR-1287-5p inhibition, and Cur counteracted the increase in LONP2 expression induced by miR-1287-5p inhibition. In conclusion, we suggest that Cur alleviates OGD/R-induced oxidative damage in SH-SY5Y cells by regulating the miR-1287-5p/LONP2 axis. The findings provide a theoretical basis for the clinical application of curcumin.
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Affiliation(s)
- Teng Zhang
- Department of Traditional Chinese Medicine Encephalopathy, Hubei Provincial Hospital Traditional Chinese Medicine, Wuhan 430074, China
- Department of Traditional Chinese Medicine Encephalopathy, Hubei Province Traditional Chinese Medicine Research Institute, Wuhan 430074, China
| | - Xiaomin Chen
- Department of Traditional Chinese Medicine Encephalopathy, Hubei Provincial Hospital Traditional Chinese Medicine, Wuhan 430074, China
- Department of Traditional Chinese Medicine Encephalopathy, Hubei Province Traditional Chinese Medicine Research Institute, Wuhan 430074, China
| | - Yueqing Qu
- Department of Traditional Chinese Medicine Encephalopathy, Hubei Provincial Hospital Traditional Chinese Medicine, Wuhan 430074, China
- Department of Traditional Chinese Medicine Encephalopathy, Hubei Province Traditional Chinese Medicine Research Institute, Wuhan 430074, China
| | - Yanbing Ding
- Department of Traditional Chinese Medicine Encephalopathy, Hubei Provincial Hospital Traditional Chinese Medicine, Wuhan 430074, China
- Department of Traditional Chinese Medicine Encephalopathy, Hubei Province Traditional Chinese Medicine Research Institute, Wuhan 430074, China
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12
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Pluta R, Czuczwar SJ, Januszewski S, Jabłoński M. The Many Faces of Post-Ischemic Tau Protein in Brain Neurodegeneration of the Alzheimer's Disease Type. Cells 2021; 10:cells10092213. [PMID: 34571862 PMCID: PMC8465797 DOI: 10.3390/cells10092213] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Revised: 08/24/2021] [Accepted: 08/25/2021] [Indexed: 12/13/2022] Open
Abstract
Recent data suggest that post-ischemic brain neurodegeneration in humans and animals is associated with the modified tau protein in a manner typical of Alzheimer’s disease neuropathology. Pathological changes in the tau protein, at the gene and protein level due to cerebral ischemia, can lead to the development of Alzheimer’s disease-type neuropathology and dementia. Some studies have shown increased tau protein staining and gene expression in neurons following ischemia-reperfusion brain injury. Recent studies have found the tau protein to be associated with oxidative stress, apoptosis, autophagy, excitotoxicity, neuroinflammation, blood-brain barrier permeability, mitochondrial dysfunction, and impaired neuronal function. In this review, we discuss the interrelationship of these phenomena with post-ischemic changes in the tau protein in the brain. The tau protein may be at the intersection of many pathological mechanisms due to severe neuropathological changes in the brain following ischemia. The data indicate that an episode of cerebral ischemia activates the damage and death of neurons in the hippocampus in a tau protein-dependent manner, thus determining a novel and important mechanism for the survival and/or death of neuronal cells following ischemia. In this review, we update our understanding of proteomic and genomic changes in the tau protein in post-ischemic brain injury and present the relationship between the modified tau protein and post-ischemic neuropathology and present a positive correlation between the modified tau protein and a post-ischemic neuropathology that has characteristics of Alzheimer’s disease-type neurodegeneration.
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Affiliation(s)
- Ryszard Pluta
- Laboratory of Ischemic and Neurodegenerative Brain Research, Mossakowski Medical Research Institute, Polish Academy of Sciences, 5 Str. Pawińskiego, 02-106 Warsaw, Poland;
- Correspondence: ; Tel.: +48-22-6086-540
| | - Stanisław J. Czuczwar
- Department of Pathophysiology, Medical University of Lublin, 8b Str. Jaczewskiego, 20-090 Lublin, Poland;
| | - Sławomir Januszewski
- Laboratory of Ischemic and Neurodegenerative Brain Research, Mossakowski Medical Research Institute, Polish Academy of Sciences, 5 Str. Pawińskiego, 02-106 Warsaw, Poland;
| | - Mirosław Jabłoński
- Department of Rehabilitation and Orthopedics, Medical University of Lublin, 8 Str. Jaczewskiego, 20-090 Lublin, Poland;
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13
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Wu S, Du L. Protein Aggregation in the Pathogenesis of Ischemic Stroke. Cell Mol Neurobiol 2021; 41:1183-1194. [PMID: 32529541 DOI: 10.1007/s10571-020-00899-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Accepted: 06/05/2020] [Indexed: 01/31/2023]
Abstract
Despite the distinction between ischemic stroke and neurodegenerative disorders, they share numerous pathophysiologies particularly those mediated by inflammation and oxidative stress. Although protein aggregation is considered to be a hallmark of neurodegenerative diseases, the formation of protein aggregates can be also induced within a short time after cerebral ischemia, aggravating cerebral ischemic injury. Protein aggregation uncovers a previously unappreciated molecular overlap between neurodegenerative diseases and ischemic stroke. Unfortunately, compared with neurodegenerative disease, mechanism of protein aggregation after cerebral ischemia and how this can be averted remain unclear. This review highlights current understanding on protein aggregation and its intrinsic role in ischemic stroke.
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Affiliation(s)
- Shusheng Wu
- Department of Pharmacology, School of Medicine, Southeast University, Nanjing, 210009, Jiangsu, China.
| | - Longfei Du
- Department of Laboratory Medicine, Affiliated Hospital of Yangzhou University, Yangzhou, Jiangsu, China
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14
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Zhang H, Cao Y, Ma L, Wei Y, Li H. Possible Mechanisms of Tau Spread and Toxicity in Alzheimer's Disease. Front Cell Dev Biol 2021; 9:707268. [PMID: 34395435 PMCID: PMC8355602 DOI: 10.3389/fcell.2021.707268] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2021] [Accepted: 07/09/2021] [Indexed: 12/31/2022] Open
Abstract
Tau is a protein that associates with microtubules (MTs) and promotes their assembly and stability. The protein loses its ability to bind MTs in tauopathies, and detached tau can misfold and induce the pathological changes that characterize Alzheimer’s disease (AD). A growing body of evidence indicates that tauopathies can spread between cells or connected regions. Pathological tau transmission in the brain of patients with AD and other tauopathies is due to the spread of various tau species along neuroanatomically connected regions in a “prion-like” manner. This complex process involves multiple steps of secretion, cellular uptake, transcellular transfer, and/or seeding, but the precise mechanisms of tau pathology propagation remain unclear. This review summarizes the current evidence on the nature of propagative tau species and the possible steps involved in the process of tau pathology spread, including detachment from MTs, degradations, and secretion, and discusses the different mechanisms underlying the spread of tau pathology.
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Affiliation(s)
- Huiqin Zhang
- Institute of Geriatrics, Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Yu Cao
- Institute of Geriatrics, Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Lina Ma
- Institute of Geriatrics, Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Yun Wei
- Institute of Geriatrics, Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Hao Li
- Institute of Geriatrics, Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, China
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15
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Wicha P, Das S, Mahakkanukrauh P. Blood-brain barrier dysfunction in ischemic stroke and diabetes: the underlying link, mechanisms and future possible therapeutic targets. Anat Cell Biol 2021; 54:165-177. [PMID: 33658432 PMCID: PMC8225477 DOI: 10.5115/acb.20.290] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2020] [Revised: 12/27/2020] [Accepted: 01/30/2021] [Indexed: 01/04/2023] Open
Abstract
Ischemic stroke caused by occlusion of cerebral artery is responsible for the majority of stroke that increases the morbidity and mortality worldwide. Diabetes mellitus (DM) is a crucial risk factor for ischemic stroke. Prolonged DM causes various microvascular and macrovascular changes, and blood-brain barrier (BBB) permeability that facilitates inflammatory response following stroke. In the acute phase following stroke, BBB disruption has been considered the initial step that induces neurological deficit and functional disabilities. Stroke outcomes are significantly worse among DM. In this article, we review stroke with diabetes-induce BBB damage, as well as underlying mechanism and possible therapeutic targets for stroke with diabetes.
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Affiliation(s)
- Piyawadee Wicha
- Department of Anatomy, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
| | - Srijit Das
- Department of Anatomy, Faculty of Medicine, Universiti Kebangsaan Malaysia Medical Centre, Kuala Lumpur, Malaysia
| | - Pasuk Mahakkanukrauh
- Department of Anatomy, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand.,Excellence in Osteology Research and Training Center (ORTC), Chiang Mai University, Chiang Mai, Thailand
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16
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Zulfiqar Z, Shah FA, Shafique S, Alattar A, Ali T, Alvi AM, Rashid S, Li S. Repurposing FDA Approved Drugs as JNK3 Inhibitor for Prevention of Neuroinflammation Induced by MCAO in Rats. J Inflamm Res 2020; 13:1185-1205. [PMID: 33384558 PMCID: PMC7770337 DOI: 10.2147/jir.s284471] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Accepted: 12/01/2020] [Indexed: 12/14/2022] Open
Abstract
Background Stress-associated kinases are considered major pathological mediators in several incurable neurological disorders. Importantly, among these stress kinases, the c-Jun NH2-terminal kinase (JNK) has been linked to numerous neuropathological conditions, including oxidative stress, neuroinflammation, and brain degeneration associated with brain injuries such as ischemia/reperfusion injury. In this study, we adopted a drug repurposing/reprofiling approach to explore novel JNK3 inhibitors from FDA-approved medications to supplement existing therapeutic strategies. Materials and Methods We performed in silico docking analysis and molecular dynamics simulation to screen potential candidates from the FDA approved drug library using the standard JNK inhibitor SP600125 as a reference. After the virtual screening, dabigatran, estazolam, leucovorin, and pitavastatin were further examined in ischemic stroke using an animal rodent model of focal cerebral ischemia using transient middle cerebral artery occlusion (t-MCAO). The selected drugs were probed for neuroprotective effectiveness by measuring the infarct area (%) and neurological deficits using a 28-point composite score. Biochemical assays including ELISA and immunohistochemical experiments were performed. Results We obtained structural insights for dabigatran, estazolam, and pitavastatin binding to JNK3, revealing a significant contribution of the hydrophobic regions and significant residues of active site regions. To validate the docking results, the pharmacological effects of dabigatran, estazolam, leucovorin, and pitavastatin on MCAO were tested in parallel with the JNK inhibitor SP600125. After MCAO surgery, severe neurological deficits were detected in the MCAO group compared with the sham controls, which were significantly reversed by dabigatran, estazolam, and pitavastatin treatment. Aberrant morphological features and brain damage were observed in the ipsilateral cortex and striatum of the MCAO groups. The drugs restored the anti-oxidant enzyme activity and reduced the levels of oxidative stress-induced p-JNK and neuroinflammatory mediators such as NF-kB and TNF-ɑ in rats subjected to MCAO. Conclusion Our results demonstrated that the novel FDA-approved medications attenuate ischemic stroke-induced neuronal degeneration, possibly by inhibiting JNK3. Being FDA-approved safe medications, the use of these drugs can be clinically translated for ischemic stroke-associated brain degeneration and other neurodegenerative diseases associated with oxidative stress and neuroinflammation.
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Affiliation(s)
- Zikra Zulfiqar
- Department of Pharmacology, Riphah Institute of Pharmaceutical Sciences, Riphah International University, Islamabad, Pakistan
| | - Fawad Ali Shah
- Department of Pharmacology, Riphah Institute of Pharmaceutical Sciences, Riphah International University, Islamabad, Pakistan
| | - Shagufta Shafique
- National Center for Bioinformatics, Quaid-I-Azam University, Islamabad, Pakistan
| | - Abdullah Alattar
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, University of Tabuk, Tabuk, Saudi Arabia
| | - Tahir Ali
- Department of Comparative Biology and Experimental Medicine, Faculty of Veterinary Medicine, Hotchkiss Brain Institute, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Arooj Mohsin Alvi
- Department of Pharmacology, Riphah Institute of Pharmaceutical Sciences, Riphah International University, Islamabad, Pakistan
| | - Sajid Rashid
- National Center for Bioinformatics, Quaid-I-Azam University, Islamabad, Pakistan
| | - Shupeng Li
- State Key Laboratory of Oncogenomics, School of Chemical Biology and Biotechnology, Shenzhen Graduate School, Peking University, Shenzhen, People's Republic of China
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17
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Mankhong S, Kim S, Moon S, Lee KH, Jeon HE, Hwang BH, Beak JW, Joa KL, Kang JH. Effects of Aerobic Exercise on Tau and Related Proteins in Rats with the Middle Cerebral Artery Occlusion. Int J Mol Sci 2020; 21:ijms21165842. [PMID: 32823945 PMCID: PMC7461507 DOI: 10.3390/ijms21165842] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Revised: 08/10/2020] [Accepted: 08/12/2020] [Indexed: 11/16/2022] Open
Abstract
Although Alzheimer's disease (AD)-like pathology is frequently found in patients with post-stroke dementia, little is known about the effects of aerobic exercise on the modifications of tau and related proteins. Therefore, we evaluated the effects of aerobic exercise on the phosphorylation and acetylation of tau and the expressions of tau-related proteins, after middle cerebral artery occlusion (MCAO) stroke. Twenty-four Sprague-Dawley rats with MCAO infarction were used in this study. The rehabilitation group (RG) received treadmill training 40 min/day for 12 weeks, whereas the sedentary group (SG) did not receive any type of training. Functional tests, such as the single pellet reaching task, rotarod, and radial arm maze tests, were performed monthly for 3 months. In ipsilateral cortices in the RG and SG groups, level of Ac-tau was lower in the RG, whereas levels of p-tauS396, p-tauS262, and p-tauS202/T205 were not significantly lower in the RG. Level of phosphorylated glycogen synthase kinase 3-beta Tyr 216 (p-GSK3βY216) was lower in the RG, but levels of p-AMPK and phosphorylated glycogen synthase kinase 3-beta Ser 9 (p-GSK3βS9) were not significantly lower. Levels of COX-2 and BDNF were not significantly different between the two groups, while SIRT1 significantly decreased in ipsilateral cortices in RG. In addition, aerobic training also improved motor, balance, and memory functions. Rehabilitation with aerobic exercise inhibited tau modification, especially tau acetylation, following infarction in the rat MCAO model, which was accompanied with the improvement of motor and cognitive functions.
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Affiliation(s)
- Sakulrat Mankhong
- Department of Pharmacology, College of Medicine, Inha University, Incheon 22212, Korea; (S.M.); (S.K.); (S.M.)
- Hypoxia-Related Diseases Research Center, College of Medicine, Inha University, Incheon 22212, Korea
| | - Sujin Kim
- Department of Pharmacology, College of Medicine, Inha University, Incheon 22212, Korea; (S.M.); (S.K.); (S.M.)
- Hypoxia-Related Diseases Research Center, College of Medicine, Inha University, Incheon 22212, Korea
| | - Sohee Moon
- Department of Pharmacology, College of Medicine, Inha University, Incheon 22212, Korea; (S.M.); (S.K.); (S.M.)
- Hypoxia-Related Diseases Research Center, College of Medicine, Inha University, Incheon 22212, Korea
| | - Kyoung-Hee Lee
- Department of Occupational Therapy, Baekseok University, Chungnam 31065, Korea;
| | - Hyeong-Eun Jeon
- Department of Physical & Rehabilitation Medicine, College of Medicine, Inha University, Incheon 22332, Korea;
| | - Byeong-Hun Hwang
- Industry-Academia Cooperation Group, Baekseok University, Chungnam 31065, Korea; (B.-H.H.); (J.-W.B.)
| | - Jong-Won Beak
- Industry-Academia Cooperation Group, Baekseok University, Chungnam 31065, Korea; (B.-H.H.); (J.-W.B.)
| | - Kyung-Lim Joa
- Department of Physical & Rehabilitation Medicine, College of Medicine, Inha University, Incheon 22332, Korea;
- Correspondence: (K.-L.J.); (J.-H.K.); Tel.: +82-890-2480 (K.-L.J.); +82-32-860-9872 (J.-H.K.)
| | - Ju-Hee Kang
- Department of Pharmacology, College of Medicine, Inha University, Incheon 22212, Korea; (S.M.); (S.K.); (S.M.)
- Hypoxia-Related Diseases Research Center, College of Medicine, Inha University, Incheon 22212, Korea
- Correspondence: (K.-L.J.); (J.-H.K.); Tel.: +82-890-2480 (K.-L.J.); +82-32-860-9872 (J.-H.K.)
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18
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Pan Q, Liu Y, Wang G, Wen Z, Wang Y. MTMR14 protects against cerebral stroke through suppressing PTEN-regulated autophagy. Biochem Biophys Res Commun 2020; 529:1045-1052. [PMID: 32819563 DOI: 10.1016/j.bbrc.2020.06.096] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2020] [Accepted: 06/19/2020] [Indexed: 02/07/2023]
Abstract
The phosphoinositide phosphatase, myotubularinrelated protein 14 (MTMR14), plays a critical role in the regulating autophagy. However, its functional contribution to neuronal autophagy is still unclear. In the present study, we attempted to explore the effects of MTMR14 on ischemic stroke progression, as well as the underlying molecular mechanisms. Oxygen-glucose deprivation/reoxygenation (OGDR)-induced primary cortical neurons and pheochromocytoma (PC12) cells, and middle cerebral artery occlusion (MCAO)-operated mice were used to establish cerebral ischemia/reperfusion (I/R) injury in vitro and in vivo, respectively. OGDR treatment markedly decreased the expression of MTMR14 expression from mRNA and protein levels in the cultured primary neurons and PC12 cells. Functional analysis showed that OGDR-reduced cell viability was further accelerated by MTMR14 knockdown. On the contrary, MTMR14 over-expression significantly rescued the cell survival in OGDR-exposed cells. Moreover, autophagic markers including LC3BII and Beclin 1 were highly up-regulated in OGDR-incubated neurons and PC12 cells, while being further exacerbated by MTMR14 deletion. However, promoting MTMR14 dramatically alleviated LC3BII and Beclin 1 expression levels stimulated by OGDR. Importantly, we found that MTMR14-regulated autophagy was through its interactions with phosphatase and tensin homolog (PTEN). MTMR14 negatively modulated PTEN protein expression levels in OGDR-exposed cells. In vivo, MCAO-operated mice exhibited significantly reduced expression of MTMR14 in the ischemic penumbra tissues. After MCAO operation, MTMR14 over-expression effectively reduced infarct volume and neurological deficits scores, along with decreased activation of LC3B in neurons. Consistently, MCAO-increased PTEN, LC3BII and Beclin 1 were repressed by MTMR14 in mice. An interaction between MTMR14 and PTEN in response to MCAO was confirmed in vivo. Together, these results indicated the neuroprotective effects of MTMR14 on modulating PTEN-dependent excessive autophagy during cerebral I/R injury. Thus, targeting MTMR14 may provide feasible therapy for ischemic stroke onset and progression.
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Affiliation(s)
- Qichen Pan
- Department of Neurosurgery, The First Hospital of China Medical University, Shenyang, Liaoning Province, 110001, PR China.
| | - Yuan Liu
- Department of Neurosurgery, The First Hospital of China Medical University, Shenyang, Liaoning Province, 110001, PR China
| | - Gang Wang
- Department of Neurosurgery, The First Hospital of China Medical University, Shenyang, Liaoning Province, 110001, PR China
| | - Zhifeng Wen
- Department of Neurosurgery, The First Hospital of China Medical University, Shenyang, Liaoning Province, 110001, PR China
| | - Yiqun Wang
- Department of Neurosurgery, The First Hospital of China Medical University, Shenyang, Liaoning Province, 110001, PR China
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19
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Pluta R, Ułamek-Kozioł M, Januszewski S, Czuczwar SJ. Shared Genomic and Proteomic Contribution of Amyloid and Tau Protein Characteristic of Alzheimer's Disease to Brain Ischemia. Int J Mol Sci 2020; 21:ijms21093186. [PMID: 32366028 PMCID: PMC7246538 DOI: 10.3390/ijms21093186] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2020] [Revised: 04/24/2020] [Accepted: 04/27/2020] [Indexed: 01/07/2023] Open
Abstract
Post-ischemic brain damage is associated with the deposition of folding proteins such as the amyloid and tau protein in the intra- and extracellular spaces of brain tissue. In this review, we summarize the protein changes associated with Alzheimer's disease and their gene expression (amyloid protein precursor and tau protein) after ischemia-reperfusion brain injury and their role in the post-ischemic injury. Recent advances in understanding the post-ischemic neuropathology have revealed dysregulation of amyloid protein precursor, α-secretase, β-secretase, presenilin 1 and 2, and tau protein genes after ischemic brain injury. However, reduced expression of the α-secretase in post-ischemic brain causes neurons to be less resistant to injury. In this review, we present the latest evidence that proteins associated with Alzheimer's disease and their genes play a key role in progressive brain damage due to ischemia and reperfusion, and that an ischemic episode is an essential and leading supplier of proteins and genes associated with Alzheimer's disease in post-ischemic brain. Understanding the underlying processes of linking Alzheimer's disease-related proteins and their genes in post-ischemic brain injury with the risk of developing Alzheimer's disease will provide the most significant goals for therapeutic development to date.
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Affiliation(s)
- Ryszard Pluta
- Laboratory of Ischemic and Neurodegenerative Brain Research, Mossakowski Medical Research Centre, Polish Academy of Sciences, 02-106 Warsaw, Poland; (M.U.-K.); (S.J.)
- Correspondence:
| | - Marzena Ułamek-Kozioł
- Laboratory of Ischemic and Neurodegenerative Brain Research, Mossakowski Medical Research Centre, Polish Academy of Sciences, 02-106 Warsaw, Poland; (M.U.-K.); (S.J.)
| | - Sławomir Januszewski
- Laboratory of Ischemic and Neurodegenerative Brain Research, Mossakowski Medical Research Centre, Polish Academy of Sciences, 02-106 Warsaw, Poland; (M.U.-K.); (S.J.)
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20
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Proteomic and Genomic Changes in Tau Protein, Which Are Associated with Alzheimer's Disease after Ischemia-Reperfusion Brain Injury. Int J Mol Sci 2020; 21:ijms21030892. [PMID: 32019137 PMCID: PMC7037789 DOI: 10.3390/ijms21030892] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2019] [Revised: 01/24/2020] [Accepted: 01/27/2020] [Indexed: 01/12/2023] Open
Abstract
Recent evidence suggests that transient ischemia of the brain with reperfusion in humans and animals is associated with the neuronal accumulation of neurotoxic molecules associated with Alzheimer’s disease, such as all parts of the amyloid protein precursor and modified tau protein. Pathological changes in the amyloid protein precursor and tau protein at the protein and gene level due to ischemia may lead to dementia of the Alzheimer’s disease type after ischemic brain injury. Some studies have demonstrated increased tau protein immunoreactivity in neuronal cells after brain ischemia-reperfusion injury. Recent research has presented many new tau protein functions, such as neural activity control, iron export, protection of genomic DNA integrity, neurogenesis and long-term depression. This review discusses the potential mechanisms of tau protein in the brain after ischemia, including oxidative stress, apoptosis, autophagy, excitotoxicity, neurological inflammation, endothelium, angiogenesis and mitochondrial dysfunction. In addition, attention was paid to the role of tau protein in damage to the neurovascular unit. Tau protein may be at the intersection of many regulatory mechanisms in the event of major neuropathological changes in ischemic stroke. Data show that brain ischemia activates neuronal changes and death in the hippocampus in a manner dependent on tau protein, thus determining a new and important way to regulate the survival and/or death of post-ischemic neurons. Meanwhile, the association between tau protein and ischemic stroke has not been well discussed. In this review, we aim to update the knowledge about the proteomic and genomic changes in tau protein following ischemia-reperfusion injury and the connection between dysfunctional tau protein and ischemic stroke pathology. Finally we present the positive correlation between tau protein dysfunction and the development of sporadic Alzheimer’s disease type of neurodegeneration.
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