Results 91 to 100 of about 253,250 (328)

Biocatalytic Construction of a Chemical Exchange Saturation Transfer Magnetic Resonance Imaging Nucleoside Probe: Synthesis and Evaluation of 5‐Methyl‐5,6‐Dihydrothymidine

open access: yesAdvanced Synthesis &Catalysis, EarlyView.
Al‐Hilfi et al. present a biocatalytic strategy for synthesizing 5‐methyl‐5,6‐dihydrothymidine (5‐MDHT), a sensitive MRI contrast agent. The study demonstrates that recombinant enzyme catalysis offers an efficient, sustainable, and eco‐friendly alternative to traditional chemical synthesis for producing clinically relevant imaging probes.
Aimen Al‐Hilfi   +8 more
wiley   +1 more source

Manganese-Catalyzed α-Alkylation of Ketones, Esters, and Amides Using Alcohols

open access: yesACS Catalysis, 2018
Herein we report the manganese-catalyzed C–C bond-forming reactions via α-alkylation of ketones, amides, and esters, using primary alcohols. β-Alkylation of secondary alcohols by primary alcohols to obtain α-alkylated ketones is also reported.
S. Chakraborty   +3 more
semanticscholar   +1 more source

Adamts1 Exacerbates Post‐Myocardial Infarction Scar Formation via Mechanosensing of Integrin α8

open access: yesAdvanced Science, EarlyView.
Proposed mechanistic model of ADAMTS1‐ITGα8 mechanotransduction in post‐MI scar formation. Schematic illustration showing the mechanistic pathway by which endothelial cell (EC) derived Adamts1 regulates cardiac fibroblast activation through ITGα8‐mediated mechanotransduction following myocardial infarction (MI).
Chun‐Yan Kong   +11 more
wiley   +1 more source

Synthesis, Molecular Structure and Reactivity of 5-Methylidene-1,2,3,5-tetrahydroimidazo[2,1-b]quinazolines

open access: yesMolecules, 2004
Synthesis of novel 5-methylidene-1,2,3,5-tetrahydro[2,1-b]-quinazolinederivatives 2-4 with potential biological activities mediated by α-adrenergic and/orimidazoline receptors was performed by reacting 2-chloro-4,5-dihydroimidazole (1) withthe ...
Maria Gdaniec   +2 more
doaj   +1 more source

Gene Editing of a Susceptibility LncRNA Enhances Broad‐Spectrum Disease Resistance in Rice without Developmental Trade‐Offs

open access: yesAdvanced Science, EarlyView.
Editing susceptibility lncRNAs offers a strategy to enhance disease resistance without yield loss. RESIS, a domestication‐acquired, pathogen‐induced lncRNA, promotes protein N‐terminal acetylation through its interaction with NatA complex. Knockout of RESIS increases translation and confers broad‐spectrum resistance to both fungal and bacterial ...
Wen‐long Zhao   +17 more
wiley   +1 more source

Peripherally-metallated porphyrins: meso-n1-porphyrinyl-platinum(II) complexes of 5,15-diaryl- and 5,10,15-triarylporphyrins [PDF]

open access: yes, 2002
Attempted metathesis reactions of peripherally-metallated meso-η1-porphyrinylplatinum(II) complexes such as trans-[PtBr(NiDPP)(PPh3)2] (H2DPP = 5,15-diphenylporphyrin) with organolithium reagents fail due to competitive addition at the porphyrin ring ...
Arnold, Dennis   +2 more
core   +2 more sources

Tailoring Vascular‐Immune Homeostasis via Manganese‐DNA Complex‐Armed Immunogenic Extracellular Vesicles for Pancreatic Cancer Immunotherapy

open access: yesAdvanced Science, EarlyView.
This study demonstrates that Mn2⁺–tumor DNA complexes encapsulated in dendritic cell (DC)– derived immunogenic extracellular vesicles (EVDC@Mn‐DNA) act as a DC‐specific cGAS– STING activator. EVDC@Mn‐DNA treatment enhances intratumoral DC activation, improves tumor vascular function, promotes CD8⁺ T cell activity, and suppresses pancreatic tumor growth,
Xue Jiang   +13 more
wiley   +1 more source

Tamoxifen-like metallocifens target thioredoxin system determining mitochondrial impairment leading to apoptosis in Jurkat cells [PDF]

open access: yes, 2017
Tamoxifen-like metallocifens (TLMs) of the group-8 metals (Fe, Ru, and Os) show strong anti-proliferative activity on cancer cell lines resistant to apoptosis, owing to their unique redox properties. In contrast, the thioredoxin system, which is involved
Alberto Bindoli   +9 more
core   +2 more sources

YKT6 Promotes Bladder Cancer Progression by Stabilizing β‐catenin Through USP7‐Mediated Deubiquitination

open access: yesAdvanced Science, EarlyView.
The SNARE protein YKT6 is upregulated in bladder cancer (BLCA), correlating with poor prognosis. YKT6 promotes tumor proliferation and metastasis by activating Wnt/β‐catenin signaling. It recruits Ubiquitin‐Specific Peptidase 7 (USP7) to deubiquitinate and stabilize β‐catenin, enhancing its nuclear accumulation and driving oncogenic gene expression ...
Sheng Tu   +16 more
wiley   +1 more source

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