Abstract：
:3'-Azido-3'-deoxythymidine (AZT) competitively inhibited the transport of thymidine (Km = 0.23 mM) into human erythrocytes with a Ki of 1.0 mM at 37 degrees C. The principal human metabolite of AZT in plasma, the 5'-glucuronide (GAZT), was a weak inhibitor of the nucleoside transporter (< 20% inhibition of the influx of 1.0 microM thymidine by 10 microM GAZT). The minor AZT metabolite, 3'-amino-3'-deoxythymidine (AMT), competitively inhibited thymidine transport with a Ki of 9.1 mM. The influx of AMT into human erythrocytes was found to be a saturable process (Km = 12 mM) that was largely inhibited by dilazep, thus indicating that AMT influx occurs via the nucleoside transporter. High extracellular concentrations of AZT may contribute to the synergistic cytotoxicity of AZT plus either 5-fluorouracil or methotrexate by inhibiting thymidine transport into cancer cells whose de novo biosynthesis of dTMP is impaired pharmacologically or by inhibiting efflux of 2'-deoxy-5-fluorouridine and/or 2'-deoxyuridine from these cells.
journal_name
Oncol Resjournal_title
Oncology researchauthors
Zimmerman TP,Domin BA,Mahony WBsubject
Has Abstractpub_date
1993-01-01 00:00:00pages
483-7issue
12eissn
0965-0407issn
1555-3906journal_volume
5pub_type
杂志文章abstract：:It has been reported that upregulated SIRT1 (NAD(+)-dependent class III histone deacetylase) deacetylates the p53 protein, represses its function, and allows for tumor cell growth in various cancers. Here we investigated antitumor effects of tenovin-6, a small-molecule inhibitor of SIRT1 and SIRT2, in various colon ca...
journal_title：Oncology research
pub_type： 杂志文章
doi：10.3727/096504013X13854886566598
更新日期：2013-01-01 00:00:00
abstract：:Inflammation plays a major role in the pathogenesis of cervical cancer. Chemokines are involved in inflammation, cancer, and infectious diseases. Therefore, we evaluated the association of the chemokine receptor gene polymorphism CCR5 Delta32 with risk of cervical cancer. A total of 150 histopathologically confirmed p...
journal_title：Oncology research
pub_type： 杂志文章
doi：10.3727/096504008784523667
更新日期：2008-01-01 00:00:00
abstract：:Grb2-associated binder 1 (Gab1) is often aberrant in cancerous cells and tissues, whose alteration is responsible for aggressive phenotypes. In this study, we examined the Gab1 expression in human oral squamous cell carcinoma (OSCC) tissues and investigated the cellular and molecular effect of Gab1 on migration, invas...
journal_title：Oncology research
pub_type： 杂志文章
doi：10.3727/096504017X15043589260618
更新日期：2018-05-07 00:00:00
abstract：:Ovarian cancer is highly malignant with a gradually increasing incidence and a high mortality rate. Immunosuppression is induced in ovarian cancer, although the mechanism detail is not clear. It has been indicated that HVEM (herpesvirus entry mediator) B- and T-lymphocyte attenuator (BTLA) negatively regulates the imm...
journal_title：Oncology research
pub_type： 杂志文章
doi：10.3727/096504016X14641336229602
更新日期：2016-01-01 00:00:00
abstract：:Agosterol A (AG-A) is a novel agent that reverses P-glycoprotein (P-gp) and multidrug resistance protein-1 (MRP1)-meditated multidrug resistance (MDR). We have synthesized [125I]11-azidophenyl agosterol A (azidoAG-A), a photoaffinity analog of AG-A, and characterized its binding to P-gp in membrane vesicles prepared f...
journal_title：Oncology research
pub_type： 杂志文章
doi：10.3727/000000003108748595
更新日期：2003-01-01 00:00:00
abstract：:There is an urgent need to improve the clinical management of hepatocellular carcinoma (HCC), one of the most common causes of global cancer-related deaths. Zingibar officinale is a medicinal herb used throughout history for both culinary and medicinal purposes. It has antioxidant, anticarcinogenic, and free radical s...
journal_title：Oncology research
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doi：10.3727/096504016X14816352324532
更新日期：2017-07-05 00:00:00
abstract：:Mutational inactivation of the cyclin-dependent kinase inhibitors (CDKIs) (p16INK4A/MTS1) tumor suppressor gene has been found in a variety of human tumor types. To investigate the involvement of CDKI abnormality in mesenchymal chondrosarcoma, alterations of CDKIs were examined in human mesenchymal chondrosarcoma tiss...
journal_title：Oncology research
pub_type： 杂志文章
doi：10.3727/000000001108747381
更新日期：2000-01-01 00:00:00
abstract：:Pancreatic cancer is characterized as a type of gastrointestinal tumor with a poor prognosis and high degree of malignancy. CIITA gene was found highly methylated in pancreatic carcinoma cell line PANC-1 and responsible for the low expression of major histocompatability complex II (MHC-II) that may lead to immune evas...
journal_title：Oncology research
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doi：10.3727/096504014X13983417587320
更新日期：2013-01-01 00:00:00
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journal_title：Oncology research
pub_type： 杂志文章,评审
doi：
更新日期：1999-01-01 00:00:00
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journal_title：Oncology research
pub_type： 杂志文章
doi：
更新日期：1994-01-01 00:00:00
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journal_title：Oncology research
pub_type： 杂志文章
doi：
更新日期：1996-01-01 00:00:00
abstract：:Cervical cancer is one of the most common neoplastic diseases affecting women, with a combined worldwide incidence of almost half a million new cases. Considering the fact that IL-18 plays an important role in the interactions among T cells, NK cells, and macrophages and induces IFN-gamma production, efforts should be...
journal_title：Oncology research
pub_type： 杂志文章
doi：10.3727/096504008785114156
更新日期：2008-01-01 00:00:00
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journal_title：Oncology research
pub_type： 杂志文章
doi：
更新日期：1992-01-01 00:00:00
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journal_title：Oncology research
pub_type： 杂志文章
doi：10.3727/096504016X14756640150695
更新日期：2017-04-14 00:00:00
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journal_title：Oncology research
pub_type： 杂志文章
doi：
更新日期：2003-01-01 00:00:00
abstract：:Heme oxygenase-1 (HO-1) plays an important role in the progression of several malignancies including breast cancer. However, its role in breast cancer metastasis is still ambiguous. In this study, we observed the effect of HO-1 on mouse mammary carcinoma metastasis using the in vivo tumor metastasis model. Our results...
journal_title：Oncology research
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doi：10.3727/096504018X15415906335771
更新日期：2019-06-21 00:00:00
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journal_title：Oncology research
pub_type： 杂志文章
doi：10.3727/096504005776382305
更新日期：2005-01-01 00:00:00
abstract：:N-Butyl-N-(4-hydroxybutyl)-nitrosamine (BBN), which induces bladder carcinoma in female Wistar rats and female C3H/HeJ mice, was given as 0.025% (w/v) solution to rats and 0.05% to mice in the drinking water. Thymosin fraction 5 (TF5) or thymosin alpha 1 (T alpha 1) dissolved in normal saline, and normal saline (contr...
journal_title：Oncology research
pub_type： 杂志文章
doi：
更新日期：1996-01-01 00:00:00
abstract：:Ovarian cancer is the most lethal disease among gynecological malignancies. More effective therapy is required to counter high recurrence rates and chemotherapy resistance. We investigated the efficacy and molecular mechanisms of three combined treatments (TCTs)-a novel histone deacetylase (HDAC) inhibitor OBP-801/YM7...
journal_title：Oncology research
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doi：10.3727/096504017X14850164661097
更新日期：2017-09-21 00:00:00
abstract：:Mutations in the APC gene contribute to development of sporadic desmoid tumors as well as to the hereditary tumors that usually accompany familial adenomatous polyposis (FAP). Adenomatous polyposis coli (APC) mutations cause an intracellular accumulation of beta-catenin that results in abnormal signaling in the wnt/wi...
journal_title：Oncology research
pub_type： 杂志文章
doi：
更新日期：1998-01-01 00:00:00
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journal_title：Oncology research
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doi：10.3727/096504016X14761811155298
更新日期：2017-04-14 00:00:00
abstract：:Medullary thyroid carcinoma (MTC) is an uncommon and highly aggressive tumor of the neuroendocrine system, which derives from the neuroendocrine C cells of the thyroid gland. Except for surgical resection, there are not very many effective systemic treatment options for MTC. N-Myc downstream-regulated gene 2 (NDRG2) h...
journal_title：Oncology research
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更新日期：2016-01-01 00:00:00
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journal_title：Oncology research
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更新日期：2020-08-28 00:00:00
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journal_title：Oncology research
pub_type： 杂志文章,评审
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更新日期：2011-01-01 00:00:00
abstract：:Spinal osteosarcoma (OS) is a malignant tumor that has a poor outcome. MicroRNA-520b (miR-520b) acts as a cancer suppressor in various types of cancer. Because of the limited amount of literature on OS, we aimed to identify the role of miR-520b in OS. The miR-520b level in clinical spinal OS tissues and adjacent nontu...
journal_title：Oncology research
pub_type： 杂志文章
doi：10.3727/096504017X14873430389189
更新日期：2017-09-21 00:00:00
abstract：:A number of previous investigations have reported that physical exercise renders immunopotentiating and antitumor therapeutic benefits to the tumor-bearing host. As these effects of physical exercise are mainly mediated through the modulation of hormonal and cytokine repertoire, it remains unclear if male and female t...
journal_title：Oncology research
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doi：10.3727/096504010x12629634366142
更新日期：2010-01-01 00:00:00
abstract：:A Wnt agonist, 2-amino-4-[3,4-(methylenedioxy)benzylamino]-6-(3-methoxyphenyl) pyrimidine, is a cell-permeable pyrimidine compound that has been shown to mimic the effect of Wnt. In this study, leukemic mouse cell lines, RAW 264.7 and J774.1, were incubated with the Wnt agonist. The Wnt agonist showed cell death in th...
journal_title：Oncology research
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doi：10.3727/096504016X14721731148893
更新日期：2017-04-14 00:00:00
abstract：:Claudin18 (CLDN18) is necessary for intercellular junctions and is reported to be involved in cell migration and metastasis, making it like an oncogene in various cancer types. However, the biological function and regulatory mechanisms of CLDN18 in lung adenocarcinoma are not yet clear. In this study, we found downreg...
journal_title：Oncology research
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更新日期：2018-05-07 00:00:00
abstract：:Combretastatin A4 phosphate (CA4P) is currently undergoing clinical trials as a tumor vascular-targeting agent. Here, we defined the antivascular effect and programmed cell death (PCD) induced by CA4P in vascular endothelial cells. CA4P induced time- and dose-dependent antiproliferative activities against human umbili...
journal_title：Oncology research
pub_type： 杂志文章
doi：10.3727/096504011x13079697132790
更新日期：2011-01-01 00:00:00
abstract：:Although epidermal growth factor receptor tyrosine kinase inhibitors (EGFR TKIs) are used as first-line agents for treating nonsquamous cell lung cancer with EGFR mutation, there are many patients who have to receive these drugs following platinum-based chemotherapy. This study was designed to define whether exposure ...
journal_title：Oncology research
pub_type： 杂志文章
doi：10.3727/096504012x13285365944337
更新日期：2011-01-01 00:00:00
