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Tenovin-1 Induces Senescence and Decreases Wound-Healing Activity in Cultured Rat Primary Astrocytes

Bang M, Ryu O, Kim DG, Mabunga DF, Cho KS, Kim Y, Han SH, Kwon KJ, Shin CY

Brain aging induces neuropsychological changes, such as decreased memory capacity, language ability, and attention; and is also associated with neurodegenerative diseases. However, most of the studies on brain aging are...
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Molecular Characterization of Primary Human Astrocytes Using Digital Gene Expression Analysis

Kim JW, Jeong JH

OBJECTIVE: Astrocyte dysfunctions are related to several central nervous system (CNS) pathologies. Transcriptomic profiling of human mRNAs to investigate astrocyte functions may provide the basic molecular-biological data pertaining to the...
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Etoposide Induces Mitochondrial Dysfunction and Cellular Senescence in Primary Cultured Rat Astrocytes

Bang M, Kim DG, Gonzales E, Kwon KJ, Shin CY

Brain aging is an inevitable process characterized by structural and functional changes and is a major risk factor for neurodegenerative diseases. Most brain aging studies are focused on neurons and...
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Astrocytic proBDNF and Tonic GABA Distinguish Active versus Reactive Astrocytes in Hippocampus

Chun H, An H, Lim J, Woo J, Lee J, Ryu H, Lee CJ

Astrocytes are the most abundant cell type in the brain and they make close contacts with neurons and blood vessels. They respond dynamically to various environmental stimuli and change their...
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Early Postnatal Valproic Acid Exposure Increase the Protein Level of Astrocyte Markers in Frontal Cortex of Rat

Mony TJ, Lee JW, Kim SS, Chun W, Lee HJ

OBJECTIVE: In our previous study, it has been reported that valproic acid (VPA) effects gliogenesis and increases the number of glial precursor cells during the early postnatal period. However there...
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Expression of µ-Opioid Receptor in CA1 Hippocampal Astrocytes

Nam MH, Han KS, Lee J, Bae JY, An H, Park S, Oh SJ, Kim E, Hwang E, Bae YC, Lee CJ

µ-opioid receptor (MOR) is a class of opioid receptors with a high affinity for enkephalins and beta-endorphin. In hippocampus, activation of MOR is known to enhance the neuronal excitability of...
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Astrocytes, Microglia, and Parkinson's Disease

Joe EH, Choi DJ, An J, Eun JH, Jou I, Park S

Astrocytes and microglia support well-being and well-function of the brain through diverse functions in both intact and injured brain. For example, astrocytes maintain homeostasis of microenvironment of the brain through...
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Astrocyte Specificity and Coverage of hGFAP-CreERT2 [Tg(GFAP-Cre/ERT2)13Kdmc] Mouse Line in Various Brain Regions

Park YM, Chun H, Shin JI, Lee CJ

Astrocyte is the most abundant cell type in the central nervous system and its importance has been increasingly recognized in the brain pathophysiology. To study in vivo function of astrocyte,...
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New Roles for Old Glue: Astrocyte Function in Synaptic Plasticity and Neurological Disorders

Hussaini S, Jang MH

Previously believed to solely play a supportive role in the central nervous system, astrocytes are now considered active players in normal brain function. Evidence in recent decades extends their contributions...
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Up to Date on Astrocytes

Kim JW

No abstract available.
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Fatty Acid Increases cAMP-dependent Lactate and MAO-B-dependent GABA Production in Mouse Astrocytes by Activating a G(αs) Protein-coupled Receptor

Lee N, Sa M, Hong YR, Lee CJ, Koo J

Medium-chain fatty acids (MCFAs) are mostly generated from dietary triglycerides and can penetrate the blood-brain barrier. Astrocytes in the brain use MCFAs as an alternative energy source. In addition, MCFAs...
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Functional Characterization of Resting and Adenovirus-Induced Reactive Astrocytes in Three-Dimensional Culture

Woo J, Im SK, Chun H, Jung SY, Oh SJ, Choi N, Lee CJ, Hur EM

Brain is a rich environment where neurons and glia interact with neighboring cells as well as extracellular matrix in three-dimensional (3D) space. Astrocytes, which are the most abundant cells in...
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Orai1 and Orai3 in Combination with Stim1 Mediate the Majority of Store-operated Calcium Entry in Astrocytes

Kwon J, An H, Sa M, Won J, Shin JI, Lee CJ

Astrocytes are non-excitable cells in the brain and their activity largely depends on the intracellular calcium (Ca²⁺) level. Therefore, maintaining the intracellular Ca²⁺ homeostasis is critical for proper functioning of...
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LPS Sensing Mechanism of Human Astrocytes: Evidence of Functional TLR4 Expression and Requirement of Soluble CD14

Park JY, Lee KH, Park HS, Choi SJ

Among a myriad of pathogen-associated molecular pattern-sensing receptors, toll-like receptors (TLRs) are the principal core sensors of the host. Despite intensive studies for the expression of TLRs and their roles...
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The Modulation of Neurotrophin and Epigenetic Regulators: Implication for Astrocyte Proliferation and Neuronal Cell Apoptosis After Spinal Cord Injury

Kim JH, Kim SH, Cho SR, Lee JY, Kim JH, Baek A, Jung HS

OBJECTIVE: To investigate alterations in the expression of the main regulators of neuronal survival and death related to astrocytes and neuronal cells in the brain in a mouse model of...
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Bee Venom Exerts Neuroprotective Effects on Neuronal Cells and Astrocytes under Hypoxic Conditions Through MAPK Signaling Pathways

Lee EJ, Kim BJ, Jeong JE, Chung HL, Yang EK, Kim WT

PURPOSE: Hypoxic-ischemic brain injuries influence the mechanisms of signal transduction, including mitogen-activated protein kinase (MAPK) that regulates gene expression through transcription factor activity. Several attempts have been made to use...
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Lonchocarpine Increases Nrf2/ARE-Mediated Antioxidant Enzyme Expression by Modulating AMPK and MAPK Signaling in Brain Astrocytes

Jeong YH, Park JS, Kim DH, Kim HS

Lonchocarpine is a phenylpropanoid compound isolated from Abrus precatorius that has anti-bacterial, anti-inflammatory, antiproliferative, and antiepileptic activities. In the present study, we investigated the antioxidant effects of lonchocarpine in brain...
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Systematic Analysis of Translocator Protein 18 kDa (TSPO) Ligands on Toll-like Receptors-mediated Pro-inflammatory Responses in Microglia and Astrocytes

Lee JW, Nam H, Yu SW

Translocator protein 18 kDa (TSPO) is a mitochondrial protein highly expressed on reactive microglia and astrocytes, and is considered as a biomarker for neurodegeneration and brain damage, especially neuroinflammation. Toll-like...
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Astrocytes and Microglia as Non-cell Autonomous Players in the Pathogenesis of ALS

Lee J, Hyeon SJ, Im H, Ryu H, Kim Y, Ryu H

Amyotrophic lateral sclerosis (ALS) is a devastating neurodegenerative disorder that leads to a progressive muscle wasting and paralysis. The pathological phenotypes are featured by severe motor neuron death and glial...
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Two-pore Domain Potassium Channels in Astrocytes

Ryoo K, Park JY

Two-pore domain potassium (K(2P)) channels have a distinct structure and channel properties, and are involved in a background K⁺ current. The 15 members of the K(2P) channels are identified and...
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