Results 11 to 20 of about 1,562 (132)

Nucleoside deaminases: the key players in base editing toolkit [PDF]

Biophysics Reports, 2023
The development of nucleoside deaminase-containing base editors realized targeted single base change with high efficiency and precision. Such nucleoside deaminases include adenosine and cytidine deaminases, which can catalyze adenosine-to-inosine (A-to-I) and cytidine-to-uridine (C-to-U) conversion respectively.
Bei Yang
exaly   +4 more sources

Bacterial cytidine deaminases as versatile activators of fluoropyrimidine nucleoside prodrugs

European Journal of Medicinal Chemistry
A platform for modification of 5-fluoropyrimidine nucleosides as potential prodrugs has been developed utilizing bacterial-derived cytidine deaminases (CDAs) for activation. It has been demonstrated that CDA_EH, CDA_F14, and CDA_Lsp effectively convert 5-fluoropyrimidine analogs into 5-fluoro-(2'-deoxy)uridine exhibiting cytotoxic effects.
Viktorija Preitakaite, Arunas Kazlauskas, Ágota Aučynaitė   +2 more
exaly   +4 more sources

Nucleoside deaminase: an enzymatic marker for stress erythropoiesis in the mouse [PDF]

Journal of Clinical Investigation, 1970
The level of nucleoside deaminase was determined in extracts of mouse tissues obtained during a period of accelerated erythropoiesis induced by hypoxia, hemorrhage, or the injection of phenylhydrazine. Under these conditions a striking (10- to 100-fold) elevation of the enzyme activity occurred in the spleen.
Rothman, I K, Zanjani, E D, Gordon, A S, Silber, R   +3 more
openaire   +2 more sources

Dextran-Linked Purine Nucleosides as Substrates and Inhibitors of Adenosine Deaminase [PDF]

European Journal of Biochemistry, 1982
Dextran-bound adenosine, inosine, and nebularine have been prepared by carbodiimide coupling of their 2',3'-O-(4-carboxyethyl-1-methylbutylidene) cyclic acetal derivatives to 6-aminohexyldextran or 12-aminododecanyldextran. The latter polymers were prepared by cyanogen-bromide activation of dextran T80 followed by reaction with 1,6-diaminohexane or 1 ...
H, Rosemeyer, E, Körnig, F, Seela
openaire   +2 more sources

Structure-guided discovery of highly efficient cytidine deaminases with sequence-context independence [PDF]

Nature Biomedical Engineering
Hu Feng, Haihang Zhang, Tanglong Yuan
exaly   +2 more sources

Increased Excretion of Modified Adenine Nucleosides by Children with Adenosine Deaminase Deficiency [PDF]

Pediatric Research, 1982
We have identified seven adenine nucleosides in urines of untreated adenosine deaminase (ADA) deficient patients, four of which (adenosine, 2'-deoxyadenosine, 1-methyladenosine and N6-methyladenosine) have been previously identified in urines of normals and/or ADA deficient patients.
R, Hirschhorn, H, Ratech, A, Rubinstein, P, Papageorgiou, H, Kesarwala, E, Gelfand, V, Roegner-Maniscalco   +6 more
openaire   +2 more sources

Synergistic HMGN1 and VP64 Fusions Potentiate High‐Precision and PAM‐Flexible Base Editing

Advanced Science, EarlyView.
A novel CDA1Δ‐SpRY architecture fused with HMGN1 and VP64 yields a nearly PAM‐less base editing platform. By focusing cytosine conversion predominantly at position −18, this synergistic complex ensures highly precise targeting. Demonstrating enhanced efficiency across diverse models, including yeast and rice, the platform offers a robust solution for ...
Xi Luo, Yuyao Qu, Zhengyan Ye, Zheng Li, Yuanyan Zhang, Longjiong Luo, Shaokang Li, Wei Zhao, Ming Wang, Ralph Bock, Jianmin Wan, Junjie Tan   +11 more
wiley   +1 more source

Inosine‐Triphosphate‐Pyrophosphatase Activity as a Potential Predictor of Methotrexate Remission in Juvenile Idiopathic Arthritis

Arthritis &Rheumatology, EarlyView.
Objective Methotrexate (MTX) is the first‐line therapy for juvenile idiopathic arthritis (JIA), but up to 40% of patients do not respond to it. Low inosine triphosphate pyrophosphatase (ITPA) activity has been associated with reduced clinical remission. We investigated the role and underlying mechanisms of ITPA in vitro. Methods ITPA enzymatic activity
Sofia Sindici Forgiarini, Marianna Lucafò, Debora Curci, Davide Selvestrel, Valentina Moressa, Sofia Pagarin, Barbara Bellich, Martina Franzin, Alberto Tommasini, Mara L. Becker, Laura B. Ramsey, Susan D. Thompson, Carl D. Langefeld, Federica Corba, Edoardo Marrani, Gabriele Simonini, Gabriele Stocco, Giuliana Decorti, Andrea Taddio, Serena Pastore   +19 more
wiley   +1 more source

Delineation of the Molecular Mechanisms of Nucleoside Recognition by Cytidine Deaminase through Virtual Screening [PDF]

ChemMedChem, 2011
AbstractCytidine deaminase (EC 3.5.4.5, CDA), an enzyme of the pyrimidine salvage pathways, is responsible for the degradation and inactivation of several cytidine‐based antitumor drugs such as cytarabine, gemcitabine, decitabine, and azacytidine. Thus, CDA inhibitors are highly sought after as compounds to be co‐administered with said drugs to improve
COSTANZI, Stefano, Vilar S, Micozzi D, CARPI, FRANCESCO MARTINO, Ferino G, VITA, Alberto, VINCENZETTI, Silvia   +6 more
openaire   +2 more sources

Pharmacogenomic profiling of the efficacy of gemcitabine monotherapy in metastatic pancreatic cancer: Subgroup analysis of the GENESECT study

British Journal of Clinical Pharmacology, EarlyView.
Aim In the GENESECT study, no significant gemcitabine (GEM) metabolism‐related germline genetic polymorphisms (GPs) were identified because approximately 70% of patients received combination therapy with nab‐paclitaxel, which has metabolic pathways different from GEM.
Takashi Yokokawa, Daiki Tsuji, Masahiro Hatori, Kazuyoshi Kawakami, Masahiko Nakao, Takuya Yano, Yuichiro Arakawa, Keisuke Matsuo, Yasukata Ohashi, Masato Ozaka, Naoki Sasahira, Yasuhiko Sakata, Yuki Kogure, Shinya Tamaki, Atsushi Wada, Yusuke Taki, Wataru Suzuki, Kazuo Kobayashi, Hiroshi Ishii, Kunihiko Itoh, Masakazu Yamaguchi, Kenichi Suzuki   +21 more
wiley   +1 more source