Results 151 to 160 of about 1,216,747 (291)

Hepatocyte CBX2 Safeguards Hepatic Lipid Homeostasis by Elevating Ca2+‐CaMKK2‐AMPK Signaling to Counter MASLD

open access: yesAdvanced Science, EarlyView.
In hepatocytes, CBX2 promotes H3K4me3 enrichment at the Orai1 promoter to enhance Orai1 transcriptional activation, thereby increasing intracellular Ca2+ levels. The elevated Ca2+ activates the CaMKK2‐AMPK signaling cascade, resulting in ACC phosphorylation and downstream metabolic regulation. This cascade suppresses de novo lipogenesis (Fasn, Acc, Scd‐
Xiang Wei   +18 more
wiley   +1 more source

Large Oncosomes Induce Pro‐Metastatic Stromal‐Myeloid Reprogramming

open access: yesAdvanced Science, EarlyView.
Large oncosomes systemically reprogram bone marrow mesenchymal stem cells through innate nucleic acid sensing, driving inflammatory and immunosuppressive remodeling that supports a metastasis‐permissive bone marrow environment, revealing a novel tumor‐host communication axis in cancer. ABSTRACT Bone metastasis can be facilitated by systemic remodeling,
Taylon Felipe Silva   +18 more
wiley   +1 more source

Adaptation of a Fluorogenic RNA to N1‐Methylpseudouridine Nucleoside Chemistry

open access: yesAngewandte Chemie, EarlyView.
Several green‐emitting fluorogenic RNA aptamers were evaluated following the replacement of every uridine by N1‐methylpseudouridine (mΨ). Because this modification impaired the function of most aptamers, a directed evolution strategy combining droplet microfluidics, bioinformatics, and rational design was used to identify an aptamer preserving its ...
Patrick P.A. Bertrand   +4 more
wiley   +2 more sources

Biomimetic Nanoplatform for Fibrosis Remodeling and Anti‐PD‐1 Potentiation via Cu+/Ca2+ Ion Dysregulation and TGF‐β Inhibition in PDAC

open access: yesAdvanced Science, EarlyView.
A biomimetic nanoplatform (RPm@CC‐LY) remodels fibrotic stroma via sustained TGF‐β inhibition, triggers oxidative stress and apoptosis through Cu+‐mediated Fenton chemistry and Ca2+ overload, and reprograms macrophages and dendritic cells to boost CD8+ T cell infiltration.
Jianmei Li   +6 more
wiley   +1 more source

DUSP26 Regulated by YY1 Lactylation Couples Osteogenesis and Angiogenesis by Dephosphorylating PMPCB at Y141 and Activating Mitophagy in BMSCs

open access: yesAdvanced Science, EarlyView.
p300‐associated YY1 lactylation promotes DUSP26 expression in BMSCs. By regulating PMPCB phosphorylation and PINK1 processing, DUSP26 supports mitophagy, osteogenic differentiation, and pro‐angiogenic factor secretion. BMSC‐derived exosomes carrying a RUNX2 promoter‐driven DUSP26 plasmid favor osteogenic‐lineage transgene expression, partially ...
Yunpeng Lv   +15 more
wiley   +1 more source

Latent messenger RNA in dormant Artemia embryos

open access: yes, 1980
This thesis deals with the demonstration and partial characterization of latent messenger RNA in encysted Artemia embryos.RNA was extracted from subcellular fractions of dormant Artemia cysts and tested for template activity in a messenger RNA deficient ...
Nilsson, Mats Ola,
core  

Topology‐Driven X‐Shaped DNA as a cGAS Stimulator to Promote Dendritic Cell Activation and Antitumor Vaccine Efficacy

open access: yesAdvanced Science, EarlyView.
X‐shaped DNA promotes multivalent cGAS assembly and enhances cGAS‐STING signaling. When conjugated with antigenic peptides, the resulting X‐DNA‐based peptide vaccine promotes dendritic cell activation, antigen presentation, and antitumor T‐cell responses.
Jiabei Li   +7 more
wiley   +1 more source

The Lifetime of Bacterial Messenger RNA

open access: yes, 1963
Puromycin, an inhibitor of protein synthesis, appears to act as an inhibitor at additional sites during the induction of {beta}-galactosidase synthesis. No inhibition of the reactions proceeding during the first 20 seconds of induction was observed, but puromycin seems to prevent the accumulation of messenger RNA during the period between 20 seconds ...
Moses, V., Calvin, M.
openaire   +3 more sources

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