Results 81 to 90 of about 178,961 (291)

Bitopic binding mode of an M1 muscarinic acetylcholine receptor agonist associated with adverse clinical trial outcomes [PDF]

open access: yes, 2018
The realisation of the therapeutic potential of targeting the M1 muscarinic acetylcholine receptor (M1 mAChR) for the treatment of cognitive decline in Alzheimer's disease has prompted the discovery of M1 mAChR ligands showing efficacy in alleviating ...
Bradley, Sophie J.   +14 more
core   +1 more source

Biomimetic Iridium‐Based Photothermal Nanozyme to Trigger Ferroptosis and Pyroptosis and Activate the cGAS‐STING Pathway for Improved Tumor Immunotherapy

open access: yesAdvanced Science, EarlyView.
This study develops an iridium‐based nanozyme (IIN@M) with superior enzyme‐like activity and photothermal performance. It disrupts intracellular redox balance by generating reactive oxygen species and depleting glutathione, which synergistically induces ferroptosis, pyroptosis, and immunogenic cell death.
Lijun Ding   +7 more
wiley   +1 more source

Roles of transcriptional and translational control mechanisms in regulation of ribosomal protein synthesis in Escherichia coli [PDF]

open access: yes, 2017
Bacterial ribosome biogenesis is tightly regulated to match nutritional conditions and to prevent formation of defective ribosomal particles. InEscherichia coli, most ribosomal protein (r-protein) synthesis is coordinated with rRNA synthesis by a ...
Burgos, Hector L   +3 more
core   +3 more sources

Trojan Horse Strategy: How Biomimetic Nanomedicine Remodels the Tumor Microenvironment

open access: yesAdvanced Science, EarlyView.
This review focuses on biomimetic nanomedicines for tumor microenvironment (TME) remodeling, covering their diverse biomimetic types, design principles, and mechanisms of immune cell reprogramming and reversal of immunosuppressive microenvironments, with particular emphasis on their application in synergistic immunotherapy.
Wanrong Wang   +7 more
wiley   +1 more source

Structural Insights into the Regulation Mechanism of Small GTPases by GEFs

open access: yesMolecules, 2019
Small GTPases are key regulators of cellular events, and their dysfunction causes many types of cancer. They serve as molecular switches by cycling between inactive guanosine diphosphate (GDP)-bound and active guanosine triphosphate (GTP)-bound states ...
Sachiko Toma-Fukai, Toshiyuki Shimizu
doaj   +1 more source

A novel hemizygous mutation associated with severe intellectual disability and epilepsy: a case report

open access: yesJournal of International Medical Research, 2021
ARHGEF9 encodes collybistin, a brain-specific guanosine diphosphate-guanosine-5′-triphosphate exchange factor that plays an important role in clustering of gephyrin and γ-aminobutyric acid type A receptors in the postsynaptic membrane.
Tong Qiu, Qian Dai, Qiu Wang
doaj   +1 more source

Assignments of backbone 1H, 13C and 15N resonances in H-Ras (1–166) complexed with GppNHp at physiological pH [PDF]

open access: yes, 2012
The small GTPase Ras is an important signaling molecule acting as a molecular switch in eukaryotic cells. Recent findings of global conformational exchange and a putative allosteric binding site in the G domain of Ras opened an avenue to understanding ...
Kovriguine, Evgueni, O\u27Connor, Casey
core   +1 more source

Cell‐Free DNA‐Based Theranostics for Inflammatory Disorders

open access: yesAdvanced Science, EarlyView.
Summary on the dual potential of cfDNA as biomarkers and therapeutic targets for inflammatory disorders. Figure was created with BioRender.com. ABSTRACT Inflammatory disorders are characterized by immune‐mediated inflammatory cascades that can affect multiple organs.
Jiatong Li   +7 more
wiley   +1 more source

Visual and Plasmon Resonance Absorption Sensor for Adenosine Triphosphate Based on the High Affinity between Phosphate and Zr(IV)

open access: yesSensors, 2016
Zr(IV) can form phosphate and Zr(IV) (–PO32−–Zr4+–) complex owing to the high affinity between Zr(IV) with phosphate. Zr(IV) can induce the aggregation of gold nanoparticles (AuNPs), while adenosine triphosphate(ATP) can prevent Zr(IV)-induced ...
Wenjing Qi   +4 more
doaj   +1 more source

GTP and Ca2+ Modulate the Inositol 1,4,5-Trisphosphate-Dependent Ca2+ Release in Streptolysin O-Permeabilized Bovine Adrenal Chromaffin Cells [PDF]

open access: yes, 1991
The inositol 1,4,5-trisphosphate (IP3)-induced Ca2+ release was studied using streptolysin O-permeabilized bovine adrenal chromaffin cells. The IP3-induced Ca2+ release was followed by Ca2+ reuptake into intracellular compartments.
Ahnert-Hilger G.   +23 more
core   +1 more source

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