Results 151 to 160 of about 196,626 (324)

Glutamate biosynthesis in Bacillus azotofixans. 15N NMR and enzymatic studies [PDF]

open access: yes, 1988
Pathways of ammonia assimilation into glutamic acid in Bacillus azotofixans, a recently characterized nitrogen-fixing species of Bacillus, were investigated through observation by NMR spectroscopy of in vivo incorporation of 15N into glutamine and ...
Kanamori, Keiko   +2 more
core  

Red Blood Cells Internalize Extracellular DNA via Apoptotic Bodies with Clinical Relevance to Cancer Patients

open access: yesAdvanced Science, EarlyView.
Mature red blood cells (RBCs) can capture extracellular DNA, with short fragments homologous to cfDNA. This uptake is mediated by apoptotic bodies, which induce RBC oxidative stress, deformation, and accelerated in vivo clearance. The rbcDNA abundance correlates with tumor burden and therapeutic response, highlighting its potential as a liquid biopsy ...
Zihang Zeng   +20 more
wiley   +1 more source

ETV1 Drives CD4+ T Cell‐Mediated Intestinal Inflammation in Inflammatory Bowel Disease Through Amino Acid Transporter Slc7a5

open access: yesAdvanced Science, EarlyView.
This study identifies the transcription factor ETV1 as a key driver of CD4⁺ T cell‐mediated intestinal inflammation in inflammatory bowel disease (IBD). ETV1 promotes CD4⁺ T cell activation, proliferation, and Th17 differentiation by activating the amino acid transporter SLC7A5, fueling metabolic reprogramming.
Yan Shi   +8 more
wiley   +1 more source

Tubule‐Derived IFN‐α Promotes GSDMD‐Mediated Macrophage Pyroptosis to Drive Renal Inflammation and Fibrosis Through JAK2/STAT2 Activation

open access: yesAdvanced Science, EarlyView.
Mao and colleagues uncover a STAT2/IRF9‐dependent signaling axis through which tubular epithelial cell (TEC)‐derived IFN‐α induces gasdermin D (GSDMD)‐mediated pyroptosis in macrophages. This TEC‐macrophage feedback loop amplifies renal inflammation and fibrosis, providing mechanistic insight into the progression of chronic kidney disease and revealing
Yiping Xu   +12 more
wiley   +1 more source

3-Hydroxykynurenine Transaminase Identity with Alanine Glyoxylate Transaminase [PDF]

open access: yesJournal of Biological Chemistry, 2002
Qian Han, Jianmin Fang, Jianyong Li
openaire   +1 more source

Extracellular Vesicles of Streptococcus anginosus Mediate Gastritis via Epithelial Barrier Disruption and Macrophage‐driven Inflammation

open access: yesAdvanced Science, EarlyView.
Streptococcus anginosus extracellular vesicles (SA‐EVs) accumulate in gastric tissue, disrupt epithelial tight junctions, and induce gastritis characterized by neutrophil infiltration and elevated cytokines (TNF‐α, IL‐6, IL‐17A). Proteomics identifies TMPC and FBP62 as key SA‐EVs virulence factors; their genetic deletion attenuates inflammation ...
Ying Gong   +12 more
wiley   +1 more source

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