Results 71 to 80 of about 197,991 (343)

m6A‐Modified circRAPGEF1 Interaction with IGF2BP3 Promotes Hepatocellular Carcinoma Progression via Reprogramming Aspartate Metabolism

open access: yesAdvanced Science, EarlyView.
In hepatocellular carcinoma (HCC), the m6A‐modified circRAPGEF1 destabilizes ASS1 mRNA via competitive binding to IGF2BP3, driving aspartate metabolic reprogramming in liver cancer stem cells (LCSCs). This cascade enhances stemness properties and reduces sorafenib sensitivity in LCSCs, thereby identifying circRAPGEF1 as a promising therapeutic target ...
Juanyi Shi   +13 more
wiley   +1 more source

Novel Pyrimidine Derivatives Bearing a 1,3,4-Thiadiazole Skeleton: Design, Synthesis, and Antifungal Activity

open access: yesFrontiers in Chemistry, 2022
In this study, twenty novel pyrimidine derivatives bearing a 1,3,4-thiadiazole skeleton were designed and synthesized. Then their antifungal activity against Botrytis cinereal (B. cinereal), Botryosphaeria dothidea (B. dothidea), and Phomopsis sp.
Nianjuan Pan   +4 more
doaj   +1 more source

Sleep Deprivation Activates a Conserved Lactate‐H3K18la‐RORα Axis Driving Neutrophilic Inflammation Across Species

open access: yesAdvanced Science, EarlyView.
Sleep deprivation triggers systemic immune activation characterized by neutrophil accumulation and cytokine release. This study reveals a conserved metabolic‒epigenetic mechanism whereby lactate‐induced H3K18 lactylation upregulates RORα expression, promoting neutrophilic inflammation.
Ren Zhou   +15 more
wiley   +1 more source

Imaging‐Based High‐Content Screening with Clickable Probes Identifies XPB Inhibitors

open access: yesAngewandte Chemie, EarlyView.
Our study introduces TL‐alkyne as an innovative tool for bio‐orthogonal labeling of endogenous XPB in live cells, facilitating the creation of a cell‐based imaging HCS assay. This platform not only enabled the identification of pelitinib as a novel XPB inhibitor but also demonstrated its potential to improve cancer treatment through synergistic effects
Shuqi Li   +10 more
wiley   +2 more sources

Crystal structure of 4,6-dichloro-5-methylpyrimidine

open access: yesActa Crystallographica Section E: Crystallographic Communications, 2015
The title compound, C5H4Cl2N2, is essentially planar with an r.m.s. deviation for all non-H atoms of 0.009 Å. The largest deviation from the mean plane is 0.016 (4) Å for an N atom. In the crystal, molecules are linked by pairs of C—H...N hydrogen bonds,
Meriem Medjani   +4 more
doaj   +1 more source

Adipose Tissue Macrophages as Initiators of Exacerbated Periodontitis in Estrogen‐Deficient Environments via the Amplifier Extracellular Vesicles

open access: yesAdvanced Science, EarlyView.
Chronic systemic inflammation, worsened by estrogen deficiency, underlies and exacerbates periodontitis. Proinflammatory macrophages within visceral adipose tissue are hyperactivated due to hyper‐DNA methylation, releasing small extracellular vesicles (sEVs) similar to those of their parent cells.
Danfeng Li   +6 more
wiley   +1 more source

eIF4E Enriched Extracellular Vesicles Induce Immunosuppressive Macrophages through HMGCR‐Mediated Metabolic Rewiring

open access: yesAdvanced Science, EarlyView.
Here, it is revealed that ovarian cancer cells release extracellular vesicles enriched with eIF4E, which alters protein production in macrophages. This leads to increased expression of 3‐hydroxy‐3‐methyl‐glutaryl‐coenzyme A reductase (HMGCR), boosting cholesterol synthesis and activating an immunosuppressive pathway through X‐box binding protein 1 and ...
Sonam Mittal   +15 more
wiley   +1 more source

Biocatalytic Alkylation of Ambident Nucleophiles Enables Selective N‐Functionalization of Heterocycles and Late‐Stage Modifications

open access: yesAngewandte Chemie, EarlyView.
N‐alkylated heteroarenes are key structural motifs in bioactive compounds, but their regioselective synthesis via coupling of readily available azoles with haloalkanes remains very challenging. Here, we present a mild biocatalytic approach that proceeds on gram‐scale, is highly chemo‐ and regioselective, offering rapid access to valuable N‐alkylated ...
Felipe Ospina   +10 more
wiley   +2 more sources

4-(Prop-2-yn-1-ylsulfanyl)-1H-pyrazolo[3,4-d]pyrimidine

open access: yesIUCrData, 2017
The asymmetric unit of the title compound, C8H6N4S, consists of two independent molecules differing in the orientation of the side chain. In the crystal, molecules form dimers through N—H...N hydrogen bonds.
Mohamed El Hafi   +5 more
doaj   +1 more source

Zinc Alleviates Gut Barrier Dysfunction by Promoting the Methylation of AKT

open access: yesAdvanced Science, EarlyView.
Zinc activates the ZNG1‐METAP1 complex to elevate intracellular SAM levels, which promotes PRMT5‐mediated symmetrical dimethylation of AKT at R391 and R15. This epigenetic modification facilitates AKT membrane translocation and mTORC2 activation, thereby enhancing epithelial proliferation and gut barrier integrity.
Chuanjiang Cai   +13 more
wiley   +1 more source

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