نتایج جستجو برای: hent1
تعداد نتایج: 154 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...
Gemcitabine and pemetrexed are effective agents in the treatment of non-small-cell lung cancer (NSCLC), and the present study investigates cellular and genetic aspects of their interaction against A549, Calu-1, and Calu-6 cells. Cells were treated with pemetrexed and gemcitabine, and their interaction was assessed using the combination index. The role of drug metabolism in gemcitabine cytotoxic...
Despite advances and investments in translation research, clinical trials and health service in general, there is no significant impact on the survival of most patients diagnosed with advanced pancreatic adenocarcinoma. It is broadly recognized though that there is a small minority of patients who really benefit from particular treatments for reason usually not well understood. Light to this fa...
Adenosine, through activation of its A(1) receptors, has neuroprotective effects during hypoxia and ischemia. Recently, using transgenic mice with neuronal expression of human equilibrative nucleoside transporter 1 (hENT1), we reported that nucleoside transporter-mediated release of adenosine from neurons was not a key mechanism facilitating the actions of adenosine at A(1) receptors during hyp...
BACKGROUND The therapeutic resistance of pancreatic ductal adenocarcinoma (PDAC) is partly ascribed to ineffective delivery of chemotherapy to cancer cells. We hypothesized that physical properties at vascular, extracellular, and cellular scales influence delivery of and response to gemcitabine-based therapy. METHODS We developed a method to measure mass transport properties during routine co...
Two subtypes of equilibrative transporters, es (equilibrative inhibitor-sensitive) and ei (equilibrative inhibitor-insensitive), are responsible for the majority of nucleoside flux across mammalian cell membranes. Sequence analyses of the representative genes, ENT1 {equilibrative nucleoside transporter 1; also known as SLC29A1 [solute carrier family 29 (nucleoside transporters), member 1]} and ...
4 -Thio-D-arabinofuranosyl cytosine (TaraC) is in phase I development for treatment of cancer. In human equilibrative nucleoside transporter (hENT) 1-containing CEM cells, initial rates of uptake (10 M; picomoles per microliter of cell water per second) of [H]TaraC and [H]1-D-arabinofuranosyl cytosine (araC) were low (0.007 003 and 0.034 0.003, respectively) compared with that of [H]uridine (0....
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