Results 271 to 280 of about 543,196 (314)

Eosinophils‐Induced Lumican Secretion by Synovial Fibroblasts Alleviates Cartilage Degradation via the TGF‐β Pathway Mediated by Anxa1 Binding

open access: yesAdvanced Science, EarlyView.
Eosinophils play a crucial role in the progression of temporomandibular joint osteoarthritis (TMJOA). This study demonstrates that eosinophils, induced by OVA/IL‐5, promote Lumican secretion in the synovium, which binds to Annexin A1 in chondrocytes, inhibiting transforming growth factor β2 and Smad2/3 phosphorylation.
Wenqian Chen   +12 more
wiley   +1 more source

Glycolysis‐Derived Lactate Induces ACSL4 Expression and Lactylation to Activate Ferroptosis during Intervertebral Disc Degeneration

open access: yesAdvanced Science, EarlyView.
Glycolysis‐derived lactate activates nucleus pulposus cell ferroptosis via Histon H3K18la‐mediated ACSL4 transcription and ACSL4 lactylation and aggravate intervertebral disc degeneration. Inhibiting glycolysis via gene silencing or chemical intervention reduces the production of lactate and ameliorates ferroptosis activation and nucleus pulposus ...
Kaiqiang Sun   +10 more
wiley   +1 more source

Discovery, Herbicidal Activity and Biosynthesis of a Novel Natural Tetramic Acid from Alternaria Species

open access: yesAdvanced Science, EarlyView.
The biosynthetic mechanism of novel natural tetramic acid S‐TeA in Alternaria alternata is elucidated. Threonine acts as a precursor for 2‐amino‐3‐methylhexanoic acid (AMHA) synthesis via eight key enzymes from the branched‐chain amino acid biosynthetic pathway in the mitochondrion, wherein three unique enzymes (IPMS, IPMDH, and ISMD) play critical ...
He Wang   +9 more
wiley   +1 more source

One‐Pot Synthesis of Chiral Succinate Dehydrogenase Inhibitors and Antifungal Activity Studies

open access: yesAdvanced Science, EarlyView.
This work describes an efficient synthetic method for chiral succinate dehydrogenase inhibitors, showcasing their potent and broad‐spectrum antifungal properties. Notably, substantial differences in biological activity between the enantiomers have been observed, underscoring the pivotal role of stereochemistry in the development of fungicides ...
Donghua Du   +4 more
wiley   +1 more source

Model‐Guided Rational Construction of Escherichia coli Synthetic Consortia for Enhanced 2‐Methylbutyric Acid Production

open access: yesAdvanced Science, EarlyView.
We developed a citramalate‐derived pathway for 2‐methylbutyric acid production in E. coli mono‐culture and consortia. The optimized consortium, using 2‐keto‐3‐methylvalerate as a node, achieved 1817.03 ± 103.73 mg L−1 2‐methylbutyric acid, a 28‐fold increase from the initial strain, with a yield of 0.091 g/g glucose.
Yu Liu   +3 more
wiley   +1 more source

Nuclear‐Localized BCKDK Facilitates Homologous Recombination Repair to Support Breast Cancer Progression and Therapy Resistance

open access: yesAdvanced Science, EarlyView.
Under DNA damage, tumor cells rely on efficient DNA repair for survival and therapy resistance. This study has demonstrated that BCKDK localizes to breast cancer cell nuclei, where it binds to and phosphorylates RNF8, thereby blocking ubiquitin‐mediated degradation of RAD51 and enhancing HRR. A selective BCKDK inhibitor synergizes with clinical agents,
Haiying Liu   +12 more
wiley   +1 more source

A Live Cell Imaging‐Compatible Bioreactor for the Interrogation of Cellular Responses to Modulated Flow Conditions

open access: yesAdvanced Science, EarlyView.
An open‐source, low‐cost 3D perfusion system integrating bioprinted scaffolds and live‐imaging overcomes 2D culture limitations. Modeling the cerebrospinal fluid‐filled subarachnoid space, it reveals flow‐dependent focal adhesion kinase activation in meningothelial cells, demonstrating a powerful platform for studying mechanobiology and creating ...
Subashree Srinivasan   +7 more
wiley   +1 more source

Engineered Hydrogels for Organoid Models of Human Nonalcoholic Fatty Liver Disease

open access: yesAdvanced Science, EarlyView.
Nonalcoholic fatty liver disease (NAFLD) is characterized by lipid accumulation and extracellular matrix stiffening. An in vitro NAFLD model is developed using engineered hydrogels (G′ ≈ 1–6 kPa) and iPSC‐derived hepatic organoids. It is demonstrated that higher stiffness can increase lipid droplet accumulation, fibrosis, and metabolic dysregulation ...
Yueming Liu   +11 more
wiley   +1 more source

Dual‐Locking the SARS‐CoV‐2 Spike Trimer: An Amphipathic Molecular “Bolt” Stabilizes Conserved Druggable Interfaces for Coronavirus Inhibition

open access: yesAdvanced Science, EarlyView.
A new amphipathic molecule, S416 is discovered, that locks the SARS‐CoV‐2 spike protein in its closed state, blocking viral entry. S416 acts as a molecular bolt, binding six sites: three between adjacent RBDs and three connecting NTDs to RBDs. This dual‐locking mechanism stiffens the spike structure and reduces its flexibility.
Shiliang Li   +21 more
wiley   +1 more source

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