Results 81 to 90 of about 40,027 (305)

Kynurenine Monooxygenase Expression and Activity in Human Astrocytomas [PDF]

, 2021
Gustavo Ignacio Vázquez Cervantes, Benjamín Pineda, Daniela Ramírez Ortega, Alelí Salazar, Dinora F. González‐Esquivel, Daniel Rembao, Sergio Zavala Vega, Saúl Gómez‐Manzo, Gonzalo Pérez de la Cruz, Verónica Pérez de la Cruz   +9 more
openalex   +1 more source

TOPK Inhibition Promotes Anti‐Tumor Immunity Via eIF4F Complex Mediated STAT1 Translation in Gastric Cancer

Advanced Science, EarlyView.
This study identifies TOPK as a dual‐function target in gastric cancer: it drives tumor cell proliferation and migration, and under IFN‐γ stimulation, phosphorylates eIF4F complex component eIF4A1 to enhance STAT1 mRNA translation, thereby promoting PD‐L1/IDO1‐mediated tumor immunometabolic evasion.
Junbing Chen, Longtao Huangfu, Gangjian Wang, Xueying Wang, Huanbo Zhu, Qian Yao, Cong Chen, Xiaohuan Tang, Ting Guo, Biao Fan, Xingyang Liu, Qingda Li, Zining Liu, Ying Hu, Tianze Sun, Jiafu Ji, Xiaofang Xing   +16 more
wiley   +1 more source

Phocaeicola coprophilus‐Derived 6‐Methyluracil Attenuates Radiation‐Induced Intestinal Fibrosis by Suppressing the IDO1‐Kynurenine‐AHR Axis

Advanced Science, EarlyView.
IR‐induced dysbiosis depletes P. coprophilus and its metabolite 6‐methyluracil, leading to disinhibition of the IDO1‐Kyn‐AHR axis. This results in sustained fibroblast activation and collagen deposition, driving radiation induced intestinal fibrosis. ABSTRACT Therapeutic options for radiation‐induced intestinal fibrosis (RIF) remain limited. This study
Jiaxin Zhang, Zhen Wang, Shuang Li, Chao Luo, Han Li, Shengjie Ma, Pai Wang, Heshi Liu, Lijun Sun, Yue Yin, Weizhen Zhang, Quan Wang   +11 more
wiley   +1 more source

Biomimetic Iridium‐Based Photothermal Nanozyme to Trigger Ferroptosis and Pyroptosis and Activate the cGAS‐STING Pathway for Improved Tumor Immunotherapy

Advanced Science, EarlyView.
This study develops an iridium‐based nanozyme (IIN@M) with superior enzyme‐like activity and photothermal performance. It disrupts intracellular redox balance by generating reactive oxygen species and depleting glutathione, which synergistically induces ferroptosis, pyroptosis, and immunogenic cell death.
Lijun Ding, Zhongxiong Fan, Guoyu Xia, Fukai Zhu, Nan Yang, Shujie Yu, Longlong Yuan, Jinyao Li   +7 more
wiley   +1 more source

Trojan Horse Strategy: How Biomimetic Nanomedicine Remodels the Tumor Microenvironment

Advanced Science, EarlyView.
This review focuses on biomimetic nanomedicines for tumor microenvironment (TME) remodeling, covering their diverse biomimetic types, design principles, and mechanisms of immune cell reprogramming and reversal of immunosuppressive microenvironments, with particular emphasis on their application in synergistic immunotherapy.
Wanrong Wang, Siqi Mu, Juan Zhang, Guisong Shan, Xueqian Li, Ran Wang, Tao Guo, Xiaoyan He   +7 more
wiley   +1 more source

A link between central kynurenine metabolism and bone strength in rats with chronic kidney disease [PDF]

PeerJ, 2017
Background Disturbances in mineral and bone metabolism represent one of the most complex complications of chronic kidney disease (CKD). Serotonin, a monoamine synthesized from tryptophan, may play a potential role in bone metabolism.
Bartlomiej Kalaska, Krystyna Pawlak, Ewa Oksztulska-Kolanek, Tomasz Domaniewski, Beata Znorko, Malgorzata Karbowska, Aleksandra Citkowska, Joanna Rogalska, Alicja Roszczenko, Malgorzata M. Brzoska, Dariusz Pawlak   +10 more
doaj   +2 more sources

Dysregulation of kynurenine metabolism is related to proinflammatory cytokines, attention, and prefrontal cortex volume in schizophrenia

Molecular Psychiatry, 2019
The kynurenine pathway (KP) of tryptophan (TRP) catabolism links immune system activation with neurotransmitter signaling. The KP metabolite kynurenic acid (KYNA) is increased in the brains of people with schizophrenia. We tested the extent to which: (1)
J. Kindler, C. Lim, C. Weickert, D. Boerrigter, C. Galletly, Dennis Liu, Kelly R. Jacobs, R. Balzan, J. Bruggemann, M. O’Donnell, R. Lenroot, G. Guillemin, T. Weickert   +12 more
semanticscholar   +1 more source

Microglial GPR35 Ameliorates Epileptogenesis and Neuroinflammation via PDGFA Domain 2 Signaling

Advanced Science, EarlyView.
Activation of microglial G protein–coupled receptor 35 (GPR35) by L‐kynurenic acid (L‐Kyna) initiates a platelet‐derived growth factor A (PDGFA)–dependent phosphoinositide 3‐kinase–protein kinase B (PI3K–AKT) signaling cascade that dampens hippocampal neuroinflammation, thereby restraining epileptogenesis, lowering seizure susceptibility, and ...
Qi Wang, Tingting Qu, Qibing Sun, Ran Li, Junfei Dong, Yuming Du, Ziyin Xuan, Lei Wang, Hanli Li, Jianyun Sun, Fangliang Chen, Jinshuai Liu, Zifan Yang, Jianxiang Lei, Qian Yang, Bin Wang, Zhiming Zhou, Yu Wang   +17 more
wiley   +1 more source

T Cell Exhaustion in Cancer Immunotherapy: Heterogeneity, Mechanisms, and Therapeutic Opportunities

Advanced Science, EarlyView.
T cell exhaustion limits immunotherapy efficacy. This article delineates its progression from stem‐like to terminally exhausted states, governed by persistent antigen, transcription factors, epigenetics, and metabolism. It maps the exhaustion landscape in the TME and proposes integrated reversal strategies, providing a translational roadmap to overcome
Yang Yu, Xiaoyu Yao, Qingyang Wang, Mengrui Yang, Runze Li, Jiangjiang Qin, Jing Zhuang, Changgang Sun   +7 more
wiley   +1 more source

Biocatalytic reactions, crystal structures and mechanisms of kynurenine formamidases

Tetrahedron Chem
Kynurenine (Kyn) as a non-proteinogenic amino acid, is prevalent in various bioactive natural products, and plays a pivotal role in metabolism and related diseases.
Changmei Liu, Chengyue Miao, Xiaorui Chen, Yan Zhang, Yijian Rao, Zhenbo Yuan   +5 more
doaj   +1 more source