Results 111 to 120 of about 414,010 (359)

Extracellular nicotinate phosphoribosyltransferase binds Toll like receptor 4 and mediates inflammation

Nature Communications, 2019
The enzyme nicotinate phosphoribosyltransferase (NAPRT) mediates the rate-limiting step in NAD salvage pathway starting from nicotinic acid. Here the authors show that NAPRT can be detected extracellularly, binds to Toll like receptor 4, and activates NF-
Antonella Managò, Valentina Audrito, Francesca Mazzola, Leonardo Sorci, Federica Gaudino, Katiuscia Gizzi, Nicoletta Vitale, Danny Incarnato, Gabriele Minazzato, Alice Ianniello, Antonio Varriale, Sabato D’Auria, Giulio Mengozzi, Gianfranco Politano, Salvatore Oliviero, Nadia Raffaelli, Silvia Deaglio   +16 more
doaj   +1 more source

Immune Cell Toll-like Receptor 4 Mediates the Development of Obesity- and Endotoxemia-Associated Adipose Tissue Fibrosis

Cell Reports, 2014
Adipose tissue fibrosis development blocks adipocyte hypertrophy and favors ectopic lipid accumulation. Here, we show that adipose tissue fibrosis is associated with obesity and insulin resistance in humans and mice.
Isabelle K. Vila, Pierre-Marie Badin, Marie-Adeline Marques, Laurent Monbrun, Corinne Lefort, Lucile Mir, Katie Louche, Virginie Bourlier, Balbine Roussel, Philippe Gui, Jacques Grober, Vladimír Štich, Lenka Rossmeislová, Alexia Zakaroff-Girard, Anne Bouloumié, Nathalie Viguerie, Cedric Moro, Geneviève Tavernier, Dominique Langin   +18 more
doaj   +1 more source

Toll-like receptor-mediated signaling cascade as a regulator of the inflammation network during alcoholic liver disease [PDF]

, 2014
Chronic abuse of alcohol leads to various histological abnormalities in the liver. These are conditions collectively known as alcoholic liver disease (ALD). Currently, ALD is considered to be one of the major causes of death worldwide.
Alisi, A., Ceccarelli, S, Nobili, V
core   +1 more source

Exploring Functionally Enhanced BLP‐Trained Macrophage Subpopulations in S. Aureus Infection: Underlying Mechanisms and Therapeutic Significance

Advanced Science, EarlyView.
BLP‐trained macrophages show augmented resistance to infection, but their mechanisms remain unclear. scRNA‐seq identified 13 BMDM subsets, with two novel anti‐inflammatory/antibacterial subpopulations (C5/C7) emerging post‐BLP training. BLP training activates NRF2, attenuates oxidative stress/ferroptosis, and boosts glycolysis/OXPHOS. Adoptive transfer
Yantong Wan, Yinghao Hong, Xiangjun Ji, Jing Xiang, Jinxi Liu, Lixin Liang, Meng Ren, Wenhan Chen, Tengfei Xu, Zhijie Li, Tieliu Shi, Yong Jiang, Huaping Liang, Jinghua Liu   +13 more
wiley   +1 more source

Hypoallergenic fragment of Par j 2 increases functional expression of Toll-like receptors in atopic children [PDF]

, 2006
Parietaria judaica (Par j) is one of the main causes of allergy in the Mediterranean countries. The activation of Toll-like receptor 4 (TLR4) by lipopolysaccharide (LPS) inhibits nasal inflammation of atopic ...
Bonsignore, G, Bousquet, J, Bruno, A, Duro, G, Ferraro, M, Gjomarkaj, M., LA GRUTTA, Stefania, Pace, E   +7 more
core   +1 more source

Metformin Restores Mitochondrial Function and Neurogenesis in POLG Patient‐Derived Brain Organoids

Advanced Science, EarlyView.
Patient‐derived POLG‐mutant cortical organoids reveal neuronal subtype‐specific mitochondrial and synaptic defects, with dopaminergic neurons most affected. Metformin treatment restores neuronal identity, mitochondrial function, and excitability, increased mtDNA maintenance, and reprogrammed metabolism via TCA and redox pathways.
Zhuoyuan Zhang, Tsering Yangzom, Ning Lu, Shenglong Deng, Xianglu Xiao, Guang Yang, Kristina Xiao Liang   +6 more
wiley   +1 more source

Morphine activates neuroinflammation in a manner parallel to endotoxin [PDF]

, 2012
Opioids create a neuroinflammatory response within the CNS, compromising opioid-induced analgesia and contributing to various unwanted actions. How this occurs is unknown but has been assumed to be via classic opioid receptors.
A. A. Somogyi, A. J. de Jesus, A. Reddy, Barochia, Bevan, Bokhari, Dziarski, H. Yin, Hargreaves, Hoshino, Hutchinson, Hutchinson, Hutchinson, Hutchinson, Hutchinson, Hutchinson, J. Thomas, Jacquet, Joce, K. Cheng, K. Ramos, Kirikae, L. C. Loram, L. R. Watkins, Lewis, Li, Liu, Liu, M. R. Hutchinson, Manavalan, Milligan, Nagyoszi, Narita, Ohto, Park, Resman, Rice, Slivka, Takeuchi, Viriyakosol, Watkins, X. Wang, Youn   +42 more
core   +2 more sources

The Pathogenic Roles of Local Vitamin D Metabolism Defect in Valve Inflammation and Calcification

Advanced Science, EarlyView.
This study identifies the valvular interstitial cell populations responsible for valvular calcification induced by hyperphosphatemia and likely aging, uncovers local vitamin D metabolism defect‐induced inflammation as a critical pathogenic factor of calcific aortic valve disease, and highlights active vitamin D and ERK inhibitor as potential preventive
Ruichen Yang, Chong Han, Yangli Xie, Shoutao Qiu, Shaoyang Zhang, Jingjia He, Zejian Wang, Zhenlin Zhang, Huijuan Liu, Lin Chen, Baojie Li   +10 more
wiley   +1 more source

Structural study of binding of flagellin by Toll-like receptor 5 [PDF]

, 2003
In order to predict the binding regions within the complex formed by Toll-like receptor 5 (TLR-5) and flagellin, a complementary hydropathy between the two proteins was sought. A region common to the flagellins of Salmonella enterica serovar Typhimurium,
Brentani, Ricardo R., Jacchieri, Saul G., Torquato, Ricardo   +2 more
core   +3 more sources

Inhibiting Liver‐Derived C3 Protein Rescues Anesthesia/Surgery‐Induced Cognitive Impairment, Synaptic Disorders, and Microglial Phagocytosis

Advanced Science, EarlyView.
This study provides evidence that anesthesia/surgery can induce the BBB breakdown and promote the release of hepatogenous C3 protein into the blood. This surgical dual factors ultimately drove C3 to cross the damaged BBB and selectively colocalize with C3aR in the hippocampus, which results in structural and functional injury of synapse, C3aR‐mediated ...
Qianqian Wu, Peilin Cong, Zhouxiang Li, Yuxin Zhang, Huanghui Wu, Qian Zhang, Yawei Li, Li Tian, Qingyuan Miao, Yinggang Zheng, Hui Zhang, Qian Chen, Enduo Feng, Xinyang Li, Zheping Chen, Dong‐Xin Wang, Xinwei Huang, Lize Xiong   +17 more
wiley   +1 more source