Results 71 to 80 of about 151,614 (341)

N-Ribosyltransferase From Archaeoglobus veneficus: A Novel Halotolerant and Thermostable Biocatalyst for the Synthesis of Purine Ribonucleoside Analogs

Frontiers in Bioengineering and Biotechnology, 2020
Nucleoside-2′-deoxyribosyl-transferases (NDTs) catalyze a transglycosylation reaction consisting of the exchange of the 2′-deoxyribose moiety between a purine and/or pyrimidine nucleoside and a purine and/or pyrimidine base.
Javier Acosta, Jon Del Arco, Victor Pisabarro, Federico Gago, Jesús Fernández-Lucas, Jesús Fernández-Lucas   +5 more
doaj   +1 more source

HPLC reveals novel features of nucleoside and nucleobase homeostasis, nucleoside metabolism and nucleoside transport

Biochimica et Biophysica Acta (BBA) - Biomembranes, 2020
Humans possess three members of the cation-coupled concentrative nucleoside transporter CNT (SLC 28) family, hCNT1-3: hCNT1 is selective for pyrimidine nucleosides but also transports adenosine, hCNT2 transports purine nucleosides and uridine, and hCNT3 transports both pyrimidine and purine nucleosides.
Carol E. Cass, Kyla M. Smith, Sylvia Y.M. Yao, Reema A. Altaweraqi, James D. Young   +4 more
openaire   +3 more sources

Engineering Neutrophil Vesicles for Synergistic Protection against Ischemia/Reperfusion Injury after Lung Transplant

Advanced Science, EarlyView.
Engineered neutrophil‐derived vesicles (SOD2‐Fer‐1@CVs) co‐delivering antioxidant and ferroptosis‐inhibitory agents enable inflammation‐targeted, ROS‐responsive therapy for ischemia–reperfusion injury in lung transplantation. Synergizing with ex vivo lung perfusion, this strategy alleviates oxidative stress and inflammation, restores vascular integrity,
Hao‐Xiang Yuan, Yu‐Yun Ye, Pu Shen, Jie Zhang, Qian‐Fang Meng, Ying Chen, Xin Xu, Xuan‐Lin Zhang, Lang Rao, Zhi‐Jin Fan, Jian‐Xing He   +10 more
wiley   +1 more source

Applications of nucleoside-based molecular probes for the in vivo assessment of tumour biochemistry using positron emission tomography (PET)

Brazilian Archives of Biology and Technology, 2007
Positron emission tomography (PET) is a non-invasive nuclear imaging technique. In PET, radiolabelled molecules decay by positron emission. The gamma rays resulting from positron annihilation are detected in coincidence and mapped to produce three ...
Leonard I. Wiebe
doaj   +1 more source

Disruption of Gut Microbiota‐Mediated De Novo NAD+ Synthesis Contributes to the Development of Polycystic Ovary Syndrome

Advanced Science, EarlyView.
This study demonstrates that patients with PCOS exhibit altered gut microbial profiles, and FMT from PCOS patients induces PCOS‐like symptoms in mice. Specifically, gut dysbiosis reduces 3‐HAA levels in the context of PCOS. Administration of 3‐HAA to mice alleviates PCOS by promoting de novo NAD+ synthesis.
Ke Chen, Huafeng Geng, Yang Zheng, Hongyang Xie, Rui Qin, Junyang Chen, Cong Ye   +6 more
wiley   +1 more source

Production and Structure Study of Free Radicals of Bases and Nucleosides in Gas Phase [PDF]

Zhipu Xuebao
Nucleoside free radicals have important functions in organisms and play a crucial role in DNA damage. Accurately understanding the structure of nucleoside free radicals is crucial for studying their properties, reaction mechanisms, and interactions with ...
KOU Min1, XU Shi-yin1, JIAO Lu-yang1, DU Meng-ying1, LI Shu-qi1, KONG Xiang-lei1,2,3   +5 more
doaj   +1 more source

Tumor Intrinsic METTL5 Modulates ATF4 Translation to Prevent T Cell‐Induced Ferroptosis in Ovarian Cancer

Advanced Science, EarlyView.
An integrative analysis combining in vitro genome‐wide immune screens, in vivo ICB screens, and clinical data mining identifies METTL5 as a key tumor‐intrinsic immune factor. Mechanistic studies further reveal the importance of the METTL5‐ATF4‐SLC7A11/SLC3A2‐ferroptosis axis in modulating antitumor immune responses. These findings highlight METTL5 as a
Jiakai Hou, Cheng‐Wei Ju, Nicholas A. Egan, Yanjun Wei, Yunfei Wang, Minghao Dang, Tianyi Zhou, Leilei Shi, Ningbo Zheng, Si Chen, Ashley M. Guerrero, Xiaofang Liang, Wanfu Wu, Areej Akhtar, Chitra Dhiman, Debanwita Roy Burman, Andro E. Gerges, Mason D. Flores, Han Li, Li‐Sheng Zhang, Marleen Kok, Xiaobo Mao, Linghua Wang, Qin Feng, Yiwen Chen, Sanghoon Lee, Daniel J. McGrail, Nidhi Sahni, Chuan He, Amir A. Jazaeri, Weiyi Peng   +30 more
wiley   +1 more source

Converging Fate of the Oxidation and Reduction of 8-Thioguanosine

Molecules, 2019
Thione-containing nucleobases have attracted the attention of the scientific community for their application in oncology, virology, and transplantology.
Katarzyna Taras-Goslinska, Fabrizio Vetica, Sebastián Barata-Vallejo, Virginia Triantakostanti, Bronisław Marciniak, Chryssostomos Chatgilialoglu   +5 more
doaj   +1 more source

Targeting HDAC and PARP Enhances STING‐Dependent Antitumor Immunity in STING‐Deficient Tumor

Advanced Science, EarlyView.
Dual HDAC and PARP inhibition restores STING signaling, enhances interferon response, and boosts antitumor immunity in STING‐deficient tumors. . Abstract The stimulator of interferon genes (STING)‐mediated innate immune pathway plays an important role in tumor immunosurveillance.
Chengzhou Mao, Weiwen Fan, Jiaqi Liu, Fangzhou Yang, Wenkai Li, Lulu Li, Zhichao Shi, Qinyuan Li, Zigao Yuan, Yuyang Jiang, Bizhu Chu   +10 more
wiley   +1 more source

Integrating Metabolic Modulation and Nanomedicine for Cancer Immunotherapy

Advanced Science, EarlyView.
Metabolic rewiring in cancer is mapped across glucose, amino acid, lipid, nucleotide, and mitochondrial pathways, with emphasis on immune regulation. The review integrates mechanisms linking these pathways to tumor progression and therapy resistance, and profiles nanomaterial platforms that both deliver therapeutics and actively reprogram ...
Xiaosu Zhou, Ruibing Deng, Zunde Liao, Xiaoyu Huang, Junting Huang, Hanlou Yang, Kam W. Leong, Yiling Zhong   +7 more
wiley   +1 more source