Results 141 to 150 of about 71,066 (193)

Alternative Pathway for Methyl Supply through the Coupling of SHMT1 and PEMT to Maintain Astrocytic Homeostasis in Parkinson's Disease

Advanced Science, EarlyView.
In Parkinson's disease, SHMT1 downregulation disrupts its interaction with PEMT in astrocytes, reducing SAM levels. This leads to H3K4me1 hypomethylation and decreased Slc1a2/Glul expression, ultimately exacerbating neuroexcitotoxicity and dopaminergic neuron loss.
Yue‐Han Chen, Rong‐Xin Zhu, Nuo‐Xi Zhang, Ting‐Ting Sun, Xi‐Wei Zhang, Yu‐Jie Zhao, Ben‐Yu He, Hang Yao, Ren‐Hong Du, Lei Cao, Wen‐Bin Zhang, Wei‐Guo Liu, Yun Cai, Cong Wang, Gang Hu, Yao Wei, Yang Liu, Ming Lu   +17 more
wiley   +1 more source

Islet Amyloid Polypeptide Modelled to Simulate Diabetes Co‐Oligomerized with β‐Amyloid 1‐42 Reproducing the Pathological Cascade of Alzheimer's Disease in Human Cerebral Organoids

Advanced Science, EarlyView.
Human islet amyloid polypeptide (hIAPP) was used to mimic T2DM, and Aβ42‐hIAPP co‐oligomers were delivered into the human mature cerebral organoids (COs), which reproduce typical AD pathology and significant neuronal death more closely resembling that of AD patients.
Jin Yan, Zhimeng Tang, Yanyu Luo, Bin Liu, Xinxin Huang, Jun Wei, Feng Yue   +6 more
wiley   +1 more source

Spatially Resolved Multiomics Reveals Metabolic Remodeling and Autophagy Activation in Adamantinomatous Craniopharyngiomas

Advanced Science, EarlyView.
Multiomics integration analysis reveals the “cystic fluid–tumor cell” metabolic coupling that mediates active choline/ethanolamine uptake of tumor cells from cystic fluid and PC/PE synthesis pathways reprogramming that mediating autophagy pathway activation within ACP. ABSTRACT Adamantinomatous craniopharyngioma (ACP), a benign yet highly recurrent and
Dongting Chen, Yahui Gao, Yulin Wang, Ting Lei, Zheng Qu, Yuhan An, Jiaxu Fu, Xin Li, Fangjun Liu, Yan Li   +9 more
wiley   +1 more source

Crossing the Blood–Brain Barrier with Molecularly Imprinted Polymeric Nanocarriers: An Emerging Frontier in Brain Disease Therapy

Advanced Science, EarlyView.
Molecularly imprinted polymeric nanocarriers (nanoMIPs) offer robust, antibody‐mimetic platforms to overcome the blood‐brain barrier. The article surveys nanoMIP design and ligand‐directed surface engineering that harness receptor‐mediated transcytosis, and highlights therapeutic and diagnostic applications in neurodegeneration, brain tumors and ...
Ranjit De, Shuliang Shi, Kyong‐Tai Kim
wiley   +1 more source

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Astrocytes

Current Biology, 2021
Philip Hasel and Shane Liddelow introduce astrocytes - glial cells that help to maintain the homeostasis of the central nervous system during development, normal physiology, and aging.
Philip, Hasel, Shane A, Liddelow
openaire   +2 more sources

Astrocytes

2014
Astroglia represent the highly heterogeneous population of neuroglial cells in the central nervous system (CNS). The main function of astroglial cells lies in preservation of brain homeostasis. Astroglial cells are involved in the regulation of neurogenesis and neural cell development; they control synaptogenesis, maintenance, and pruning of synapses ...
Verkhratsky, A., Parpura, V., Kettenmann, H.   +2 more
openaire   +3 more sources

Astrocytic Tumors

2009
Astrocytic gliomas are the most common primary brain tumors and account for up to two thirds of all tumors of glial origin. In this review we outline the basic histological and epidemiological aspects of the different astrocytoma subtypes in adults. In addition, we summarize the key genetic alterations that have been attributed to astrocytoma patho ...
Markus J, Riemenschneider, Guido, Reifenberger   +1 more
openaire   +2 more sources

Astrocytes and Astrocyte–Neuron Interactions

2021
Abstract Astrocytes constitute approximately 30 percent of cells in the CNS and are the most abundant glial cells. They constitute a structural and functionally heterogeneous population and are critically involved in development, homeostasis, synaptic and neuronal network activity, and response to injury and repair in the CNS.
openaire   +1 more source

Acute treatment with 17β‐estradiol attenuates astrocyte–astrocyte and astrocyte–neuron communication

Glia, 2007
AbstractAstrocytes are now recognized as dynamic signaling elements in the brain. Bidirectional communication between neurons and astrocytes involves integration of neuronal inputs by astrocytes and release of gliotransmitters that modulate neuronal excitability and synaptic transmission.
Rao, Shilpa P, Sikdar, Sujit Kumar
openaire   +2 more sources

Astrocytes

Astrocytes belong to an extended class of astroglia, a class of neural cells of ectodermal, neuroepithelial origin that sustain homeostasis and provide for defense of the brain and the spinal cord. Astroglial cells support homeostasis of the central nervous system at all levels of organization from molecular to organ-wide.
Eliana Scemes, David C. Spray
  +5 more sources