6 research outputs found
DataSheet1_Establishment of a prognostic ferroptosis- and immune-related long noncoding RNAs profile in kidney renal clear cell carcinoma.pdf
Background: Ferroptosis and immunity are novel treatments that target several cancers, including kidney renal clear cell carcinoma (KIRC). Long noncoding RNAs (lncRNAs) are an important class of gene expression regulators that play fundamental roles in the regulation of ferroptosis and immunity. We aimed to identify ferroptosis- and immune-related lncRNAs as biomarkers in patients with KIRC.Methods: Corresponding data for each patient with KIRC were obtained from The Cancer Genome Atlas (TCGA) database. Univariate and multivariate Cox regression analyses were used to identify candidate biomarkers followed by least absolute shrinkage and selection operator (LASSO) regression analyses, weighted gene coexpression network analysis (WGCANA), and gene set enrichment analysis (GSEA).Results: Three ferroptosis- and immune-related differentially expressed lncRNAs (FI-DELs) (AC124854.1, LINC02609, and ZNF503-AS2) were markedly and independently correlated with the overall survival (OS) of patients with KIRC. The area under the curve (AUC) value of the prognostic model in the entire group using the three FI-DELs was > 0.70. The sensitivity and specificity of the diagnostic model using the three FI-DELs were 0.8586 and 0.9583, respectively.Conclusion: The present study found that AC124854.1, LINC02609, and ZNF503-AS2 were considerably and independently correlated with the OS of patients with KIRC, suggesting that the three FI-DELs could be used as prognostic and diagnostic biomarkers for patients with KIRC.</p
Trifluoromethyl-Substituted Sulfonium Ylide: Rh-Catalyzed Carbenoid Addition to Trifluoromethylthioether
A highly efficient
Rh-catalyzed carbenoid addition to trifluoroÂmethylÂthioether
for the formation of trifluoromethyl-substituted sulfonium ylide is
described. The trifluoroÂmethyl-substituted sulfonium ylide can
act as an electrophilic trifluoroÂmethylation reagent, as demonstrated
by trifluoroÂmethylation of β-ketoesters and aryl iodides
Enhanced Thermal Stability and Broad Temperature Range in High-Entropy (La<sub>0.2</sub>Ce<sub>0.2</sub>Nd<sub>0.2</sub>Sm<sub>0.2</sub>Eu<sub>0.2</sub>)NbO<sub>4</sub> Ceramics
Next-generation high-temperature applications increasingly
rely
heavily on advanced thermistor materials with enhanced thermal stability
and electrical performance. However, thus far, the great challenge
of realizing high thermal stability and precision in a wide temperature
range has become a key bottleneck restricting the high-temperature
application. Here, we propose a high-entropy strategy to design novel
high-temperature thermistor ceramics (La0.2Ce0.2Nd0.2ÂSm0.2Eu0.2)NbO4. Differences in atomic size, mass, and electronegativity in this
high-entropy system cause high lattice distortion, substantial grain
boundaries, and high dislocation density. These enhance the charge
carrier transport and reduce the grain boundary resistance, thus synergistically
broadening the temperature range. Our samples maintain high precision
and thermal stability over a wide temperature range from room temperature
to 1523 K (ΔT = 1250 K) with an aging value
as low as 0.42% after 1000 h at 1173 K, showing breakthrough progress
in high-temperature thermistor ceramics. This study establishes an
effective approach to enhancing the performance of high-temperature
thermistor materials through high-entropy strategies
<i>N</i>‑Trifluoromethylthio-dibenzenesulfonimide: A Shelf-Stable, Broadly Applicable Electrophilic Trifluoromethylthiolating Reagent
The super electrophilicity of a shelf-stable,
easily prepared trifluoromethylthiolating
reagent <i>N</i>-trifluoromethylthio-dibenzenesulfonimide <b>7</b> was demonstrated. Consistent with the theoretical prediction, <b>7</b> exhibits reactivity remarkably higher than that of other
known electrophilic trifluoromethylthiolating reagents. In the absence
of any additive, <b>7</b> reacted with a wide range of electron-rich
arenes and activated heteroarenes under mild conditions. Likewise,
reactions of <b>7</b> with styrene derivatives can be fine-tuned
by simply changing the reaction solvents to generate trifluoromethylthiolated
styrenes or oxo-trifluoromethylthio or amino-trifluoromethylthio difunctionalized
compounds in high yields
Reactive Chlorine Species Advancing the Atmospheric Oxidation Capacities of Inland Urban Environments
Chlorine (Cl) radicals from photolabile chlorine species
are highly
reactive and can affect the fate of air pollutants in the atmosphere.
Although several campaigns have been conducted, typically in coastal
environments, long-term observations of reactive chlorine species
and their impacts on atmospheric oxidation capacities (AOCs) are lacking.
Here, we report nearly full-year observations of Cl2 and
ClNO2 levels in Beijing and evaluate their impacts on the
AOC with a box model coupled with Cl chemistry. Cl radicals promote
the circulation of OH–HO2–RO2 by
accelerating the OH chain lengths by up to 12.6% on average, hence
boosting the AOC, especially in the winter or spring. This promotion
effect is nonlinearly dependent on the VOC and NOx concentrations, thus leading to a slight shift in ozone formation
from a VOC-sensitive regime to a transition regime with seasonal differences.
Given the ubiquitous reactive chlorines in polluted inland urban regions,
the AOCs and the formation of secondary pollutants will be underestimated
if the reactive chlorine species are neglected
Original data-Widespread PRC barrel proteins are necessary for haloarchaeal cell division.zip
Cell division is fundamental to all cellular life. Most archaea depend on either the prokaryotic tubulin homolog FtsZ, or the endosomal sorting complex required for transport (ESCRT) for division, but neither system has been robustly characterized. Here, we show that three of the four PRC (Photosynthetic Reaction Center) barrel domain proteins of Haloferax volcanii (renamed Cell division proteins B1/2/3 (CdpB1/2/3)), play important roles in cell division. CdpB1 interacts directly with the FtsZ membrane anchor SepF and is essential for cell division, whereas deletion of cdpB2 and cdpB3 causes a major and a minor division defect, respectively. Orthologs of CdpB proteins are also involved in cell division in other haloarchaea, indicating a conserved function of these proteins. Phylogenetic analysis shows that PRC barrel proteins are widely distributed among archaea, and appear to be central to cell division in most if not all archaea.</p