Results 41 to 50 of about 77,707 (283)

Lethal Mutagenesis of Picornaviruses with N-6-Modified Purine Nucleoside Analogues [PDF]

, 2008
RNA viruses exhibit extraordinarily high mutation rates during genome replication. Nonnatural ribonucleosides that can increase the mutation rate of RNA viruses by acting as ambiguous substrates during replication have been explored as antiviral agents ...
Barr, Eric W., Bollinger, J. Martin, Jr., Brown, Daniel M., Cameron, Craig E., Edathil, Jocelyn P., Galarraga, Jessica E., Graci, Jason D., Harki, Daniel A., Loakes, David, Peterson, Blake R., Smidansky, Eric D., Too, Kathleen   +11 more
core   +4 more sources

Co-therapy with S-adenosylmethionine and nicotinamide riboside improves t-cell survival and function in Arts Syndrome (PRPS1 deficiency)

Molecular Genetics and Metabolism Reports, 2021
Arts syndrome or phosphoribosyl-pyrophosphate-synthetase-1 (PRPS1) deficiency is caused by loss-of-function mutations in the PRPS1 gene (Xq22.3). PRPS1 is an initial and essential step for the synthesis of the nucleotides of purines, pyrimidines, and ...
Nina Lenherr, John Christodoulou, John Duley, Doreen Dobritzsch, Lynette Fairbanks, Alexandre N. Datta, Isabel Filges, Nicolas Gürtler, Jeroen Roelofsen, André B.P. van Kuilenburg, Claudia Kemper, Erin E. West, Gabor Szinnai, Martina Huemer   +13 more
doaj   +1 more source

Determination of total potentially available nucleosides in bovine milk [PDF]

, 2010
Bovine colostrum and milk samples were collected from two herds over the course of the first month post-partum, pooled for each herd by stage of lactation and total potentially available nucleosides were determined.
Gill, Brendon D., Indyk, Harvey E., Manley-Harris, Merilyn   +2 more
core   +2 more sources

Genetic attenuation of ALDH1A1 increases metastatic potential and aggressiveness in colorectal cancer

Molecular Oncology, EarlyView.
Aldehyde dehydrogenase 1A1 (ALDH1A1) is a cancer stem cell marker in several malignancies. We established a novel epithelial cell line from rectal adenocarcinoma with unique overexpression of this enzyme. Genetic attenuation of ALDH1A1 led to increased invasive capacity and metastatic potential, the inhibition of proliferation activity, and ultimately ...
Martina Poturnajova, Zuzana Kozovska, Ondrej Pos, Kristina Pavlov, Sachin Gulati, Peter Makovicky, Kristina Jakic, Monika Burikova, Eva Sedlackova, Barbora Svitkova, Silvia Tyciakova, Vojtech Bystry, Nicolas Blavet, Boris Tichy, Matej Hrnciar, Jaroslav Budis, Miroslav Tomas, Peter Dubovan, Georgina Kolnikova, Veronika Repaska, Nikoleta Mojzesova, Eva Zomborska, Daniel Pindak, Michal Mego, Tomas Szemes, Miroslava Matuskova   +25 more
wiley   +1 more source

Effects of purine nucleotide administration on purine nucleotide metabolism in brains of heroin-dependent rats

Brazilian Journal of Pharmaceutical Sciences
Heroin is known to enhance catabolism and inhibit anabolism of purine nucleotides, leading to purine nucleotide deficiencies in rat brains. Here, we determined the effect of exogenous purine nucleotide administration on purine nucleotide metabolism in ...
Kun Li, Ping Zhang, Li Chen, Fengying Guan   +3 more
doaj   +1 more source

IMPDH inhibition enhances cytarabine efficacy in SAMHD1‐expressing leukaemia cells via guanine nucleotide depletion

Molecular Oncology, EarlyView.
Cytarabine is a key therapy for acute myeloid leukaemia (AML), but its efficacy is limited by the dNTPase SAMHD1, which hydrolyses its active metabolite. Screening nucleotide biosynthesis inhibitors revealed that IMPDH inhibitors selectively sensitise SAMHD1‐proficient AML cells to cytarabine.
Miriam Yagüe‐Capilla, Christopher Dirks, Caroline Eiden, Sonja K. Fesenmayer, Femke M. Hormann, Yolande Klootsema, Ingrid Lilienthal, Si Min Zhang, Nikolas Herold, Sean G. Rudd   +9 more
wiley   +1 more source

Control of ATP homeostasis during the respiro‐fermentative transition in yeast

Molecular Systems Biology, 2010
Respiring Saccharomyces cerevisiae cells respond to a sudden increase in glucose concentration by a pronounced drop of their adenine nucleotide content ([ATP]+[ADP]+[AMP]=[AXP]).
Thomas Walther, Maite Novo, Katrin Rössger, Fabien Létisse, Marie‐Odile Loret, Jean‐Charles Portais, Jean‐Marie François   +6 more
doaj   +1 more source

Increments in DNA-thioguanine level during thiopurine-enhanced maintenance therapy of acute lymphoblastic leukemia

Haematologica, 2021
Maintenance therapy containing methotrexate and 6-mercapto - purine is essential to cure acute lymphoblastic leukemia (ALL). Cytotoxicity is elicited by incorporation of thioguanine nucleotides into DNA (DNA-TG), and higher leukocyte DNA-TG is ...
Rikke Hebo Larsen, Cecilie Utke Rank, Kathrine Grell, Lisbeth Nørgaard Møller, Ulrik Malthe Overgaard, Peter Kampmann, Jacob Nersting, Matilda Degn, Stine Nygaard Nielsen, Helle Holst, Birgitte Klug Albertsen, Peder Skov Wehner, Michael Thude Callesen, Jukka Kanerva, Thomas Leth Frandsen, Bodil Als-Nielsen, Lisa Lyngsie Hjalgrim, Kjeld Schmiegelow   +17 more
doaj   +1 more source

Effect of ischemia on the canine large bowel: A comparison with the small intestine [PDF]

, 1996
Mucosal injury caused by ischemia and reperfusion has been well documented with the small intestine, but little is known about the colon. In the present study, the effect of warm and cold ischemia on the canine colon was studied and compared to that on ...
Ikoma, A, Nakamura, K, Starzl, TE, Takeyoshi, I, Todo, S, Zhang, S, Zhu, Y   +6 more
core   +1 more source

DNA‐Templated 2D Heterostructures as Phototriggered Dynamic Nanohybrids: From Releasing Molecular Loads to Controlling Enzyme Biocatalytic Function

Advanced Functional Materials, EarlyView.
DNA strands are employed both as dynamic linkers and nanoscale templates for the integration of Ag2S nanoparticles on MoS2, which in turn imparted photothermal responsiveness; this feature permits the selective cargo (fluorophore, quantum dots or an enzyme) release from the MoS2 surface in response to local heat induced by light irradiation.
Kai Chen, Haosen Miao, Weiying Hong, Matteo Palma   +3 more
wiley   +1 more source