Results 81 to 90 of about 25,696 (256)

Function of different amino acid residues in the reaction mechanism of gentisate 1,2-dioxygenases deduced from the analysis of mutants of the salicylate 1,2-dioxygenase from Pseudaminobacter salicylatoxidans.

Biochimica et Biophysica Acta, 2015
The genome of the α-proteobacterium Pseudaminobacter salicylatoxidans codes for a ferrous iron containing ring-fission dioxygenase which catalyzes the 1,2-cleavage of (substituted) salicylate(s), gentisate (2,5-dihydroxybenzoate), and 1-hydroxy-2 ...
E. Eppinger, M. Ferraroni, Sibylle Bürger, Lenz Steimer, Grace Peng, F. Briganti, A. Stolz   +6 more
semanticscholar   +1 more source

Reprogramming tumor immune microenvironment by ultrasound‐responsive nanoplatforms for enhanced cancer immunotherapy

BMEMat, EarlyView.
Ultrasound‐responsive nanoplatforms reprogram the tumor immune microenvironment by targeting tumor cells, immune cells, and non‐immune stromal cells to enhance the efficacy of cancer immunotherapy. Abstract Cancer immunotherapy represents a significant advancement in cancer treatment by enhancing the specific recognition and elimination of cancer cells.
Shilong Zhao, Rui Qu, Zan Dai, Xiqun Jiang, Xu Zhen   +4 more
wiley   +1 more source

A nanoplatform that induces dual‐amino acid deprivation to reverse tumor immunosuppression and enhance metabolic immunotherapy

BMEMat, EarlyView.
ZIF‐8‐based nanoparticles co‐delivering CB‐839 (glutaminase inhibitor) and 1‐MT (IDO1 inhibitor), dual‐targeting glutamine/tryptophan metabolism to induce immunogenic cell death, activate STING, block kynurenine production, reverse immunosuppression, and enhance cancer immunotherapy to suppress primary/distant tumors.
Wenli Ning, Yunhan Sun, Mingyang Li, Shilu Liu, Fangjie Yi, Hongfei Wang, Ruibing Bai, Dongdong Liu, Fen Zhao, Guiqiang Zhang, Xiao Fu   +10 more
wiley   +1 more source

Functional diversity of 2-oxoglutarate/Fe(II)-dependent dioxygenases in plant metabolism

Frontiers in Plant Science, 2014
Oxidative enzymes catalyze many different reactions in plant metabolism. Among this suite of enzymes are the 2-oxoglutarate/Fe(II)-dependent dioxygenases (2-ODDs). Cytochromes P450 (CYPs) as often considered the most versatile oxidative enzymes in nature,
Scott Cameron Farrow, Peter James Facchini   +1 more
doaj   +1 more source

RORγt‐APCs: The New Masters of Oral Tolerance

Barrier Immunity, EarlyView.
ABSTRACT Oral tolerance is defined by the hypo‐responsiveness of our body to fed antigens, and its failure can lead to immune‐mediated diseases, such as allergy, chronic inflammation and autoimmune diseases. Decades of research have demonstrated that antigen‐presenting cells (APCs) promote oral tolerance by inducing regulatory T cells (Tregs) and/or ...
Thierry Gauthier, WanJun Chen
wiley   +1 more source

Five-coordinate M(II)-semiquinonate (M = Fe, Mn, Co) complexes: reactivity models of the catechol dioxygenases.

Chemical Communications, 2014
A series of five-coordinate M(II)-semiquinonate (M = Fe, Mn, Co) complexes were synthesized and characterized, including the first example of a mononuclear Fe(II)-semiquinonate.
Peng Wang, G. Yap, C. G. Riordan
semanticscholar   +1 more source

Discovery of a new subgroup of sulfur dioxygenases and characterization of sulfur dioxygenases in the sulfur metabolic network of Acidithiobacillus caldus.

PLoS ONE, 2017
Acidithiobacillus caldus is a chemolithoautotrophic sulfur-oxidizing bacterium that is widely used for bioleaching processes. Acidithiobacillus spp. are suggested to contain sulfur dioxygenases (SDOs) that facilitate sulfur oxidation.
Wei Wu, Xin Pang, Jianqiang Lin, Xiangmei Liu, Rui Wang, Jianqun Lin, Linxu Chen   +6 more
doaj   +1 more source

Intestinal microbiome alterations in pediatric epilepsy: Implications for seizures and therapeutic approaches

Epilepsia Open, EarlyView.
Abstract The intestinal microbiome plays a pivotal role in maintaining host health through its involvement in gastrointestinal, immune, and central nervous system (CNS) functions. Recent evidence underscores the bidirectional communication between the microbiota, the gut, and the brain and the impact of this axis on neurological diseases, including ...
Teresa Ravizza, Greta Volpedo, Antonella Riva, Pasquale Striano, Annamaria Vezzani   +4 more
wiley   +1 more source

Substrate specificity of a branch of aromatic dioxygenases determined by three distinct motifs

Nature Communications
The inversion of substrate size specificity is an evolutionary roadblock for proteins. The Duf4243 dioxygenases GedK and BTG13 are known to catalyze the aromatic cleavage of bulky tricyclic hydroquinone.
Chengsen Cui, Lu-Jia Yang, Zi-Wei Liu, Xian Shu, Wei-Wei Zhang, Yuan Gao, Yu-Xuan Wang, Te Wang, Chun-Chi Chen, Rey-Ting Guo, Shu-Shan Gao   +10 more
doaj   +1 more source

Ketogenic diet for infantile epileptic spasms

Epilepsia Open, EarlyView.
Abstract Approximately half of all cases of Infantile Epileptic Spasms Syndrome (IESS) do not respond to vigabatrin and hormonal therapies. There is no clear consensus as to the second‐line therapy for IESS. Ketogenic diet (KD) has emerged as an effective treatment for certain drug‐resistant epilepsies and in many cases of IESS.
Morris H. Scantlebury, Anamika Choudhary, Andy Cheuk‐Him Ng, Cezar Gavrilovici   +3 more
wiley   +1 more source