Results 121 to 130 of about 1,141,006 (274)

Brain viral reservoir seeding and neurological metabolic dysregulation in early‐life immunodeficiency virus infection

open access: yesBrain Pathology, EarlyView.
Brain viral reservoirs were undetectable in neonatal SIV during the first 3 days post infection; antiretroviral therapy (ART) at 3 dpi prevented brain reservoir seeding and normalized metabolic function, highlighting the necessity of very early treatment to protect the developing CNS.
Li Ma   +12 more
wiley   +1 more source

KYNU in Gastric Cancer Cells Promotes Tumor Progression by Influencing Macrophage Polarization Via PF4

open access: yesCancer Science, EarlyView.
KYNU is upregulated in gastric cancer cells and activates the PI3K/Akt pathway, leading to PF4 secretion. PF4 drives nonclassical macrophage polarization with high expression of S100A8 and MMP7, which promotes tumor proliferation, migration, and invasion while suppressing phagocytosis, thereby accelerating gastric cancer progression.
Xilun Cui   +4 more
wiley   +1 more source

Impaired Kynurenine Pathway in Inflammatory Bowel Disease

open access: yes
Background/Objectives: Inflammatory bowel diseases primarily encompass Crohn’s disease and ulcerative colitis. Insufficient levels of tryptophan cause an imbalance in the gut microbiota, leading to inflammation in the gastrointestinal tract.
Kubra Bozalı   +6 more
core   +1 more source

The tryptophan prenyltransferase ComQ from Bacillus subtilis 168 can prenylate daptomycin at Trp1

open access: yesThe FEBS Journal, EarlyView.
ComQ168 from Bacillus subtilis 168 catalyzes C‐terminal tryptophan farnesylation of ComX to generate a competence‐inducing pheromone. Recombinant ComQ168 also modifies cyclic peptides, including Daptomycin, likely at the N‐terminal tryptophan. Structural modeling highlights a C‐terminal binding region, supporting substrate promiscuity and establishing ...
Yanli Xu   +2 more
wiley   +1 more source

The Kynurenine Pathway and Indole Pathway in Tryptophan Metabolism Influence Tumor Progression

open access: yesCancer Medicine
Tryptophan (Trp), an essential amino acid, is solely acquired through dietary intake. It is vital for protein biosynthesis and acts as a precursor for numerous key bioactive compounds.
Zhanhui Lu   +5 more
doaj   +1 more source

CD36‐mediated lipid rewiring in the metabolic adaptation of tumour ecosystems

open access: yesThe FEBS Journal, EarlyView.
Nutrient deprivation drives a lipid‐centric shift in tumour metabolic symbiosis and signalling network. CD36 functions as a bidirectional bridge, transferring fatty acids from stromal donors (adipocytes, CAFs) to the ecosystem tumour‐ and microenvironment‐dependently.
Anna Sebestyén   +11 more
wiley   +1 more source

Uncovering the Link Between Kynurenic Acid Pathway and Kidney Failure

open access: yesKidney International Reports
Introduction: Recent studies have focused on some uremic toxins, particularly those derived from tryptophan, as potential modifiable risk factors of chronic kidney disease (CKD) progression.
Carolla El Chamieh   +62 more
doaj   +1 more source

Indoleamine 2,3‐Dioxygenase 1 as an Adjunctive Histopathological Marker of Cholangitis Activity in Primary Biliary Cholangitis

open access: yesHepatology Research, EarlyView.
IDO‐1 immunostaining identifies primary biliary cholangitis even in morphologically subtle bile duct lesions. IDO‐1 expression reflects cholangitis activity and is suppressed by ursodeoxycholic acid treatment, indicating its value as a dynamic diagnostic adjunct rather than a static marker of chronic damage.
Kaori Yoshimura   +10 more
wiley   +1 more source

Kynurenine Pathway Metabolites in Humans: Disease and Healthy States

open access: yes, 2009
Tryptophan is an essential amino acid that can be metabolised through different pathways, a major route being the kynurenine pathway. The first enzyme of the pathway, indoleamine-2,3-dioxygenase, is strongly stimulated by inflammatory molecules ...
Gilles J. Guillemin, Yiquan Chen
core   +1 more source

The Role of the Kynurenine Pathway in Irreversible Pulpitis

open access: yesJournal of Dental Research
Current therapeutic practices have limited effectiveness at targeting acute pain locally. This is in part due to the lack of understanding of the neuroinflammatory pathways active within pulpitis. Increased activity of inadoleamine 2,3 dioxygenase (IDO) was linked to hypersensitivity and pain in several settings.
J. Coulter   +10 more
openaire   +2 more sources

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