Results 111 to 120 of about 45,801 (303)

Intracellular pH regulates amyloid precursor protein intracellular domain accumulation

Neurobiology of Disease, 2007
The amyloid precursor protein (APP) metabolism is central to pathogenesis of Alzheimer’s disease (AD). Parenchymal amyloid deposits, a neuropathological hallmark of AD, are composed of amyloid-beta peptides (Abeta).
Valérie Vingtdeux, Malika Hamdane, Séverine Bégard, Anne Loyens, André Delacourte, Jean-Claude Beauvillain, Luc Buée, Philippe Marambaud, Nicolas Sergeant   +8 more
doaj   +1 more source

Metal‐Supramolecular Drug Delivery System Empowered Meningeal Lymphatic Vessels‐Bridged Intracranial‐Peripheral Dual Immune Modulation for Reversing Glioblastoma Immune Suppression

Advanced Science, EarlyView.
A novel metal‐supramolecular nanoplatform (FLM@VC) enables efficient brain delivery via meningeal lymphatic vessels (MLVs), bypassing the blood‐brain barrier (BBB) through subcutaneous administration. It reprograms tumor‐associated macrophages (TAMs) and remodels the MLVs to promote DC trafficking and CD8+ T cell activation.
Chenxi Zhang, Zhongsheng Xu, Xiaowen Xu, Zening Zhang, Ranran Luo, Pengchen Ren, Yingying Luo, Qiuchi Wu, Xinyu Liu, Guodong Liu, Xiaojing He, Yun Liu   +11 more
wiley   +1 more source

Simultaneous Imaging of Cu+ and Cu2+ in Neural Cells Using DNAzyme Probes Reveals Mechanistic Link Between Copper Redox Imbalance and Amyloid Pathology

Angewandte Chemie, EarlyView.
We develop Cu+‐ and Cu2+‐specific DNAzyme fluorescent probes to visualize both copper redox states in living neurons. Aβ oligomers cause intracellular copper overload, triggering FDX1 dependent cuproptosis and generating ROS. This work links copper redox imbalance with Aβ pathology and offers a selective, sensitive way to monitor copper homeostasis in ...
Xiangli Shao, Zhenglin Yang, Zhihao Xu, Weijie Guo, Whitney Lewis, Boyi Gan, Yi Lu   +6 more
wiley   +2 more sources

Nanozymes for Liver Disease Therapy: Advances in Catalytic Activity, Targeting Strategies, and Clinical Translation

Advanced Science, EarlyView.
Nanozymes, as enzyme‐mimicking nanomaterials, exhibit unique catalytic properties for the treatment of liver diseases. By regulating redox homeostasis, modulating immune responses, and enabling targeted delivery, nanozymes overcome the limitations of natural enzymes.
Xiandi Meng, Ge Zhu, Siyu Sun, Wenbo Yao, Yuning Zhang, Yong‐Guang Yang, Tianmeng Sun   +6 more
wiley   +1 more source

Progress on the correlation between exosomal microRNAs and Alzheimer's disease [PDF]

Jichu yixue yu linchuang, 2020
Alzheimer's disease is the most common dementia in the aged population and is characterizd by hidden attack and progressive development. Some studies showed that exosomal microRNAs(miRNAs) regulates the shearing of amyloid precusor protein,deposition of ...
DIAO Hua-qiong, LI Xiao-li, LIN Liang-yin, LIU Hai-peng, CHEN Hong-jing, DING Hai-yue, WEI Dan
doaj  

PARP-1 Modulates Amyloid Beta Peptide-Induced Neuronal Damage

PLoS ONE, 2013
Amyloid beta peptide (Aβ) causes neurodegeneration by several mechanisms including oxidative stress, which is known to induce DNA damage with the consequent activation of poly (ADP-ribose) polymerase (PARP-1). To elucidate the role of PARP-1 in the neurodegenerative process, SH-SY5Y neuroblastoma cells were treated with Aβ25-35 fragment in the presence
MARTIRE, SARA, FUSO, ANDREA, ROTILI, Dante, TEMPERA, Italo, GIORDANO, CESARE GIOVANNI, Ivana De Zottis, Alessia Muzi, Patrizia Vernole, Grazia Graziani, Emanuela Lococo, FARALDI, MARTINA, MARAS, Bruno, SCARPA, Sigfrido, MOSCA, Luciana, D'ERME, Maria   +14 more
openaire   +5 more sources

β-Amyloid peptides induce mitochondrial dysfunction and oxidative stress in astrocytes and death of neurons through activation of NADPH oxidase [PDF]

, 2004
β-Amyloid (βA) peptide is strongly implicated in the neurodegeneration underlying Alzheimer's disease, but the mechanisms of neurotoxicity remain controversial. This study establishes a central role for oxidative stress by the activation of NADPH oxidase
Abramov, A.Y., Canevari, L., Duchen, M.R.   +2 more
core  

AI Guided Protein Design for Next‐Generation Autogenic Engineered Living Materials

Advanced Intelligent Systems, EarlyView.
Autogenic engineered living materials (ELMs) integrate biology and materials science to create self‐regenerating and self‐healing materials. This perspective highlights emerging strategies in protein engineering and AI‐guided de novo design to expand the capabilities of autogenic ELMs.
Hoda M. Hammad, Anna M. Duraj‐Thatte
wiley   +1 more source

Novel Monoclonal Antibody Detects Small Aβ Oligomers More Sensitively Than Lecanemab in Alzheimer's Disease CSF, Serum and Culture Media

Annals of Neurology, EarlyView.
Objective Aqueously diffusible oligomers of the amyloid β‐protein (oAβ) are neurotoxic and play a role in neuronal dysfunction in Alzheimer's disease (AD). Accurate quantification of oAβ in brains and biofluids could be valuable for understanding and monitoring AD.
Yi Ran Xu, Youqi Tao, Alexandra M. Lish, Shaomin Li, Beth L. Ostaszewski, Amirah K. Anderson, Tracy Young‐Pearse, Trebor L. Lawton, Hyun‐Sik Yang, Dominic M. Walsh, Ting Yang, Dennis J. Selkoe   +11 more
wiley   +1 more source

Association between Plasma P‐tau217 and Alzheimer's Copathology and Cognitive Decline in Parkinson's Disease

Annals of Neurology, EarlyView.
Objective Clinically relevant Alzheimer's disease co‐pathology is common in Lewy body disorders. Plasma P‐tau217 is a sensitive biomarker for amyloid and tau pathology in Alzheimer's disease. The objective was to determine if plasma P‐tau217 associates with Alzheimer's disease co‐pathology and cognition in Lewy body disorders. Methods Participants had (
Thomas F. Tropea, Patricia Aldea Stevenson, Matthew Flitter, David Meehan, Amanda Morris, Ming Lu, Leonardo Iaccarino, Emily C. Collins, Michael E. Hodsdon, David Irwin, Meredith Spindler, Andres Deik, Nabila Dahodwala, Katheryn A.Q. Cousins, David A. Wolk, Leslie Shaw, Daniel Weintraub, Edward B. Lee, Alice Chen‐Plotkin, Mark Mintun, Andrew Siderowf   +20 more
wiley   +1 more source