Results 81 to 90 of about 971,178 (247)

Fluorescent cAMP Analogs: Enzymatic Synthesis, Unexpected Photophysical Behavior and Protein Kinase A Recognition

Angewandte Chemie, EarlyView.
Cyclic adenosine monophosphate (cAMP) is a key cellular second messenger. Adenylyl cyclase converts emissive isomorphic nucleoside triphosphates into fluorescent cAMPs. cthAMP displays unusually high brightness compared to thATP, its precursor, enabling real‐time monitoring of enzymatic reactions.
Deyuan Cong, Victor Dubois, Jamie Y. Lam, Yitzhak Tor   +3 more
wiley   +2 more sources

Metformin improves HPRT1-targeted purine metabolism and repairs NR4A1-mediated autophagic flux by modulating FoxO1 nucleocytoplasmic shuttling to treat postmenopausal osteoporosis

Cell Death and Disease
Osteoporosis is a major degenerative metabolic bone disease that threatens the life and health of postmenopausal women. Owing to limitations in detection methods and prevention strategy awareness, the purpose of osteoporosis treatment is more to delay ...
Keda Yang, Xiaochuan Wang, Chi Zhang, Dian Liu, Lin Tao   +4 more
doaj   +1 more source

[1,2,4]Triazolo[1,5-c]pyrimidine Nucleus as Adenosine Receptor Antagonists: Shift in Selectivity from A2A to A3 Adenosine Receptors.

, 2012
[1,2,4]Triazolo[1,5-c]pyrimidine derivatives are reported in literature as A2A adenosine receptor (AR) antagonists useful for the treatment of Parkinson’s disease (PD), senile dementia and depression (1).[1] Several classes of heterocyclic derivatives ...
Ciancetta, Antonella, MORO, STEFANO, SPALLUTO, GIAMPIERO, Paoletta, Silvia, Klotz, Karl Norbert, FEDERICO, STEPHANIE, Cacciari, Barbara   +6 more
core  

Magneto‐NIR‐II‐Programmed Cascade Nanozymes Unlocking Blood–Brain Barrier Translocation and Autophagic Resistance in Glioblastoma

Advanced Science, EarlyView.
Magneto‐NIR‐II‐programmed NFSH nanozymes integrate magnetic blood–brain barrier (BBB) translocation, CD44 targeting, multimodal imaging, and cascade catalytic therapy for glioblastoma. Alternating magnetic fields and NIR‐II irradiation amplify ferroptosis, release H2S, suppress autophagic and mitophagic repair, and reshape the immune microenvironment ...
Ruocan Liu, Yundi Wu, Shuai Zhang, Hongjuan Zhao, Jiping Zheng, Shiyang Shao, Jianqiang Chen, Xilong Wu   +7 more
wiley   +1 more source

A C‐Nucleoside Analogue of Cordycepin With High Metabolic Stability and Potent Anti‐Psoriatic Activity via Microneedle Delivery

Advanced Science, EarlyView.
This work identified CPD3a as a potent, stable C‐nucleoside cordycepin derivative. When formulated into microneedle array for topical treatment, it ameliorated psoriasis by rebalancing immunity and enhancing antioxidant defenses. ABSTRACT Psoriasis is a chronic inflammatory disorder characterized by immune dysregulation and epidermal hyperplasia ...
Wenfang Pan, Xinyue Shao, Yuanchen Zhong, Xujie Sun, Lixuan Yin, Zongyan He, Tianqun Lang, Yuanchao Xie   +7 more
wiley   +1 more source

A Biofabricated Human Acinus‐on‐a‐Chip Unveils Mechanotransductive Drivers of Ventilator‐Induced Lung Injury via Decoupling Volutrauma and Barotrauma

Advanced Science, EarlyView.
This bioinspired acinus‐on‐a‐chip recapitulates VILI pathology, revealing that volutrauma drives P53/NF‐κB pathways while barotrauma triggers mitochondrial‐Wnt dysregulation. A fibrotic transitional cell cluster was identified. Pharmacological interventions targeting these pathways significantly ameliorated injury, establishing a mechanobiological ...
Heng Lu, Liansheng Liu, Zengyong Hu, Shuxian Fang, Ruohan Ren, Sidi Liu, Meng Zhao, Zhiting Luo, Ziyue Zhang, Wenlong Shao, Qian Liu   +10 more
wiley   +1 more source

Exploring Directionality of 5-Substitutions in a New Series of 5-Alkyamino-pyrazolo[4,3-e]1,2,4-triazolo[1,5-c]pyrimidine as a Strategy to Design Novel Human A3 Adenosine Receptors Antagonists.

, 2012
The activation of A3 adenosine receptors (ARs) is related to various second messenger systems: in particular, they have been shown to stimulate phospholipase C and D and to inhibit adenylyl cyclase.[1] In the rat, the activation of A3 AR results in ...
Ciancetta, Antonella, MORO, STEFANO, SPALLUTO, GIAMPIERO, Paoletta, Silvia, Klotz, Karl Norbert, FEDERICO, STEPHANIE, Cacciari, Barbara, Pastorin, Giorgia   +7 more
core  

The Cancer Cell Metabolic Reprogramming Remodels the Tumor Microenvironment: Molecular Mechanisms and Therapeutic Strategies

Advanced Science, EarlyView.
This review elucidates how cancer cell metabolic reprogramming—across glucose, lipid, amino acid, and nucleotide pathways—remodels the tumor microenvironment to suppress anti‐tumor immunity and promote immune escape. Targeting these metabolic axes offers promising strategies to overcome immunotherapy resistance and enhance cancer treatment.
Guoqing Xiang, Zhicheng Zhou, Xue Jiang, Zhenguang Du, Yangyang Zhan, Xinli Liu   +5 more
wiley   +1 more source

Oral Nanomicelle‐Mediated Sequential Butyrate Production in the Intestine for Ulcerative Colitis and Immunosuppression Treatment

Advanced Science, EarlyView.
After oral administration, inodorous GLU‐BA self‐assembles into nanomicelles in aqueous environments to resist premature gastric adsorption. Upon reaching the intestine, endogenous esterases rapidly cleave the built‐in ester bonds in these nanomicelles to release BA and GLU, with GLU further metabolized by gut microbiota to gradually generate BA ...
Feifei Xin, Zhike Xie, Danyue Zhao, Lin Yang, Yiqun Wan, Zuwei Liu, Situ Xiong, Ying Zhang, Lei Feng, Hao Wan   +9 more
wiley   +1 more source

Host‐Specific Interactions Between Staphylococcus aureus and Pseudomonas aeruginosa Impair Epithelial Repair in Chronic Rhinosinusitis

International Forum of Allergy &Rhinology, EarlyView.
ABSTRACT Background Chronic rhinosinusitis (CRS) is frequently associated with polymicrobial biofilms involving Staphylococcus aureus and Pseudomonas aeruginosa. Interactions between these organisms are thought to influence disease severity, but the epithelial effects of exoproteins derived from patient‐matched cocultures remain poorly defined ...
Xiaohan Sun, Mahnaz Ramezanpour, George Bouras, Emma Barry, Alkis J. Psaltis, Peter‐John Wormald, Sarah Vreugde   +6 more
wiley   +1 more source