نتایج جستجو برای: nitrobenzylthioinosine nbmpr
تعداد نتایج: 284 فیلتر نتایج به سال:
BACKGROUND The nucleoside analogue fludarabine is used in the treatment of chronic lymphocytic leukemia. It triggers p53-mediated apoptosis, although the mutational status of p53 does not fully account for heterogeneity in responsiveness to treatment. The aim of this study was to identify new genes implicated in fludarabine action as well as to determine the role of equilibrative nucleoside tra...
A kinetic study of the inward transport of uridine in erythrocytes of rabbit, human, mouse, rat and guinea-pig demonstrated that the apparent Km of this process was similar (about 0.2mM) in these cell types, but Vmax. values differed markedly. In this array of cell types, Vmax. values were proportional to the number of transport-inhibitory, high-affinity binding sites present per cell of each t...
Prevention of nucleoside loss in bile is physiologically desirable because hepatocytes are the main source of nucleosides for animal cells which lack de novo nucleoside biosynthesis. We have demonstrated a Na+ gradient-energized, concentrative nucleoside transport system in canalicular membrane vesicles (CMV) from rat liver by studying [3H]adenosine uptake using a rapid filtration technique. Th...
5-Aminoimidazole-4-carboxamide (AICA) riboside, a precursor of purine nucleotide biosynthesis, induces apoptosis in Jurkat cells. Incorporation of AICAriboside into the cells is necessary for this effect since addition of nitrobenzylthioinosine, a nucleoside-transport inhibitor, completely protects Jurkat cells from apoptosis. Adenosine, but not other nucleosides, also protects Jurkat cells fro...
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