Results 71 to 80 of about 123,114 (319)

Inhibition of NF-κB in astrocytes is sufficient to delay neurodegeneration induced by proteotoxicity in neurons

Journal of Neuroinflammation, 2018
Background Most neurodegenerative diseases associated with protein aggregation are hallmarked by activation of astrocytes. However, how astrocytes are activated or which signaling pathways in astrocytes contribute to pathogenesis is not clear.
Y. X. Li, O. C. M. Sibon, P. F. Dijkers
doaj   +1 more source

Striatal spatial heterogeneity, clustering, and white matter association of GFAP+ astrocytes in a mouse model of Huntington’s disease

Frontiers in Cellular Neuroscience, 2023
IntroductionHuntington’s disease (HD) is a neurodegenerative disease that primarily affects the striatum, a brain region that controls movement and some forms of cognition. Neuronal dysfunction and loss in HD is accompanied by increased astrocyte density
Taylor G. Brown, Mackenzie N. Thayer, Jillian G. VanTreeck, Nicole Zarate, Damyan W. Hart, Sarah Heilbronner, Rocio Gomez-Pastor   +6 more
doaj   +1 more source

Astrocyte morphology

Trends in Cell Biology
Astrocytes are predominant glial cells that tile the central nervous system (CNS). A cardinal feature of astrocytes is their complex and visually enchanting morphology, referred to as bushy, spongy, and star-like. A central precept of this review is that such complex morphological shapes evolved to allow astrocytes to contact and signal with diverse ...
Baldwin, Katherine T, Murai, Keith K, Khakh, Baljit S   +2 more
openaire   +3 more sources

Soman induces endoplasmic reticulum stress and apoptosis of cerebral organoids via the GRP78‐ATF6‐CHOP signaling pathway

FEBS Open Bio, EarlyView.
Cerebral organoids were employed as a novel model to explore the neurotoxicity of soman. Soman inhibited acetylcholinesterase activity, increased cell apoptosis and upregulated endoplasmic reticulum (ER) stress markers glucose‐regulated protein 78 (GRP78), activating transcription factor 6 (ATF6) and C/EBP homologous protein (CHOP).
Yue Wei, Zhanbiao Liu, Jingjing Shi, Qian Jin, Wenqian Chen, Xuejun Chen, Liqin Li, Hui Chen   +7 more
wiley   +1 more source

Astrocytes as a mechanism for meta-plasticity and contextually-guided network function [PDF]

arXiv, 2023
Astrocytes are a ubiquitous and enigmatic type of non-neuronal cell and are found in the brain of all vertebrates. While traditionally viewed as being supportive of neurons, it is increasingly recognized that astrocytes may play a more direct and active role in brain function and neural computation.
arxiv  

The Role of Astrocytes in Remyelination [PDF]

Trends in Neurosciences, 2020
Remyelination is the regeneration of myelin sheaths following demyelination. This regenerative process is critical for the re-establishment of axonal conduction velocity and metabolic support to the axons. Successful remyelination in the CNS generally depends on the activation, proliferation, and differentiation of oligodendrocyte progenitor cells ...
Rawji, Khalil S, Gonzalez Martinez, Ginez A, Sharma, Amar, Franklin, Robin JM   +3 more
openaire   +4 more sources

Astrocytic control in in vitro and simulated neuron-astrocyte networks

Proceedings of the Eight Annual ACM International Conference on Nanoscale Computing and Communication, 2021
Astrocytes are involved in the information propagation in the brain by interacting with neurons. Computational modeling helps to study the underlying mechanisms for this communication deeply. In this work, we aimed to analyze how the number of astrocytes and the resulting astrocytic network structure affects neuronal activity.
Genocchi, Barbara, Ahtiainen, Annika, Barros, Michael T., Tanskanen, Jarno M.A., Hyttinen, Jari, Lenk, Kerstin   +5 more
openaire   +3 more sources

Intracellular deposits of amyloid-beta influence the ability of human iPSC-derived astrocytes to support neuronal function

Journal of Neuroinflammation, 2023
Background Astrocytes are crucial for maintaining brain homeostasis and synaptic function, but are also tightly connected to the pathogenesis of Alzheimer’s disease (AD).
Evangelos Konstantinidis, Benjamin Portal, Tobias Mothes, Chiara Beretta, Maria Lindskog, Anna Erlandsson   +5 more
doaj   +1 more source

Alpha7 nicotinic acetylcholine receptor signaling modulates ovine fetal brain astrocytes transcriptome in response to endotoxin [PDF]

Front. Immunol. 2019, 2018
Neuroinflammation in utero may result in lifelong neurological disabilities. Astrocytes play a pivotal role, but the mechanisms are poorly understood. No early postnatal treatment strategies exist to enhance neuroprotective potential of astrocytes. We hypothesized that agonism on alpha7 nicotinic acetylcholine receptor (alpha7nAChR) in fetal astrocytes
arxiv   +1 more source

CSF cytokine, chemokine and injury biomarker profile of glial fibrillary acidic protein (GFAP) autoimmunity

Annals of Clinical and Translational Neurology, EarlyView.
Abstract Defining the CSF cytokine/chemokine and injury biomarker signature of glial fibrillary acidic protein (GFAP) autoimmunity can inform immunopathogenesis. CSF GFAP‐IgG‐positive samples (N = 98) were tested for 17 cytokines/chemokines, neurofilament light chain (NfL), and GFAP (ELLA, Bio‐Techne).
Yahel Segal, Georgios Mangioris, Vanda Lennon, Binxia Yang, Divyanshu Dubey, Eoin P. Flanagan, Andrew McKeon, John R. Mills, Michel Toledano, Ivana Vodopivec, Sean J. Pittock, Anastasia Zekeridou   +11 more
wiley   +1 more source